[singular] 07/19: keep mod2.h in Singular/

felix salfelder felix-guest at moszumanska.debian.org
Mon May 26 13:18:11 UTC 2014


This is an automated email from the git hooks/post-receive script.

felix-guest pushed a commit to branch master
in repository singular.

commit d4af17eb7020d07867906e431b348dca13c57c63
Author: Felix Salfelder <felix at salfelder.org>
Date:   Wed Feb 22 11:18:38 2012 +0100

    keep mod2.h in Singular/
    
    don't copy mod2.h generated in Singular/ to kernel/
    to avoid time stamp issues
    
    Forwarded: not-needed
---
 Singular/Minor.cc            |    2 +-
 Singular/MinorInterface.cc   |    2 +-
 Singular/MinorProcessor.cc   |    2 +-
 Singular/attrib.cc           |    2 +-
 Singular/calcSVD.cc          |    2 +-
 Singular/claptmpl.cc         |    2 +-
 Singular/cntrlc.cc           |    2 +-
 Singular/configure           |    1 -
 Singular/configure.in        |    1 -
 Singular/eigenval_ip.cc      |    2 +-
 Singular/emacs.cc            |    2 +-
 Singular/extra.cc            |    2 +-
 Singular/feOpt.cc            |    2 +-
 Singular/fehelp.cc           |    2 +-
 Singular/fglm.cc             |    2 +-
 Singular/gms.cc              |    2 +-
 Singular/grammar.cc          |    2 +-
 Singular/grammar.y           |    2 +-
 Singular/interpolation.cc    |    2 +-
 Singular/iparith.cc          |    2 +-
 Singular/ipassign.cc         |    2 +-
 Singular/ipconv.cc           |    2 +-
 Singular/ipid.cc             |    2 +-
 Singular/iplib.cc            |    2 +-
 Singular/ipprint.cc          |    2 +-
 Singular/ipshell.cc          |    2 +-
 Singular/janet.cc            |    2 +-
 Singular/libparse.l          |    2 +-
 Singular/lists.cc            |    2 +-
 Singular/maps_ip.cc          |    2 +-
 Singular/minpoly.cc          |    2 +-
 Singular/misc_ip.cc          |    2 +-
 Singular/mpsr_Error.cc       |    2 +-
 Singular/mpsr_Get.cc         |    2 +-
 Singular/mpsr_GetMisc.cc     |    2 +-
 Singular/mpsr_GetPoly.cc     |    2 +-
 Singular/mpsr_Put.cc         |    2 +-
 Singular/mpsr_PutPoly.cc     |    2 +-
 Singular/mpsr_Tok.cc         |    2 +-
 Singular/mpsr_sl.cc          |    2 +-
 Singular/ndbm.cc             |    2 +-
 Singular/pcv.cc              |    2 +-
 Singular/pipeLink.cc         |    2 +-
 Singular/scanner.cc          |    2 +-
 Singular/scanner.l           |    2 +-
 Singular/sdb.cc              |    2 +-
 Singular/silink.cc           |    2 +-
 Singular/sing_dbm.cc         |    2 +-
 Singular/sing_win.cc         |    2 +-
 Singular/slInit_Dynamic.cc   |    2 +-
 Singular/slInit_Static.cc    |    2 +-
 Singular/ssiLink.cc          |    2 +-
 Singular/subexpr.cc          |    2 +-
 Singular/tesths.cc           |    2 +-
 Singular/walk.cc             |    2 +-
 Singular/walk_ip.cc          |    2 +-
 Singular/wrapper.cc          |    2 +-
 kernel/F4.cc                 |    2 +-
 kernel/F5cData.cc            |    2 +-
 kernel/F5cLists.cc           |    2 +-
 kernel/GMPrat.cc             |    2 +-
 kernel/Number.h              |    2 +-
 kernel/Poly.h                |    2 +-
 kernel/PowerSeries.h         |    2 +-
 kernel/clapconv.cc           |    2 +-
 kernel/clapsing.cc           |    2 +-
 kernel/dError.c              |    2 +-
 kernel/digitech.cc           |    2 +-
 kernel/digitech.h            |    2 +-
 kernel/eigenval.cc           |    2 +-
 kernel/f5c.cc                |    2 +-
 kernel/f5data.cc             |    2 +-
 kernel/f5gb.cc               |    2 +-
 kernel/f5lists.cc            |    2 +-
 kernel/fast_maps.cc          |    2 +-
 kernel/fast_mult.cc          |    2 +-
 kernel/fast_mult.h           |    2 +-
 kernel/feResource.cc         |    2 +-
 kernel/febase.cc             |    2 +-
 kernel/fegetopt.c            |    2 +-
 kernel/feread.cc             |    2 +-
 kernel/fereadl.c             |    2 +-
 kernel/ffields.cc            |    2 +-
 kernel/fglmcomb.cc           |    2 +-
 kernel/fglmgauss.cc          |    2 +-
 kernel/fglmhom.cc            |    2 +-
 kernel/fglmvec.cc            |    2 +-
 kernel/fglmzero.cc           |    2 +-
 kernel/gfan.cc               | 4512 ++++++++++++++++++++++++++++++++++++++++++
 kernel/gnumpc.cc             |    2 +-
 kernel/gnumpfl.cc            |    2 +-
 kernel/gr_kstd2.cc           |    2 +-
 kernel/gring.cc              |    2 +-
 kernel/hdegree.cc            |    2 +-
 kernel/hilb.cc               |    2 +-
 kernel/hutil.cc              |    2 +-
 kernel/ideals.cc             |    2 +-
 kernel/int64vec.cc           |    2 +-
 kernel/intvec.cc             |    2 +-
 kernel/kbuckets.cc           |    2 +-
 kernel/khstd.cc              |    2 +-
 kernel/kspoly.cc             |    2 +-
 kernel/kstd1.cc              |    2 +-
 kernel/kstd2.cc              |    2 +-
 kernel/kstdfac.cc            |    2 +-
 kernel/kutil.cc              |    2 +-
 kernel/linearAlgebra.cc      |    2 +-
 kernel/longalg.cc            |    2 +-
 kernel/longrat.cc            |    2 +-
 kernel/longrat0.cc           |    2 +-
 kernel/longtrans.cc          |    2 +-
 kernel/lplist.cc             |    2 +-
 kernel/maps.cc               |    2 +-
 kernel/matpol.cc             |    2 +-
 kernel/misc.cc               |    2 +-
 kernel/mmalloc.cc            |    2 +-
 kernel/mmstd.c               |    2 +-
 kernel/mod_raw.cc            |    2 +-
 kernel/modulop.cc            |    2 +-
 kernel/mpr_base.cc           |    2 +-
 kernel/mpr_complex.cc        |    2 +-
 kernel/mpr_inout.cc          |    2 +-
 kernel/mpr_numeric.cc        |    2 +-
 kernel/multicnt.cc           |    2 +-
 kernel/ncSACache.cc          |    2 +-
 kernel/ncSAFormula.cc        |    2 +-
 kernel/ncSAMult.cc           |    2 +-
 kernel/npolygon.cc           |    2 +-
 kernel/numbers.cc            |    2 +-
 kernel/pDebug.cc             |    2 +-
 kernel/pInline0.cc           |    2 +-
 kernel/pInline1.cc           |    2 +-
 kernel/pInline2.cc           |    2 +-
 kernel/pShallowCopyDelete.cc |    2 +-
 kernel/p_Mult_q.cc           |    2 +-
 kernel/p_Mult_q.h            |    2 +-
 kernel/p_Procs_Dynamic.cc    |    2 +-
 kernel/p_Procs_Generate.cc   |    2 +-
 kernel/p_Procs_Lib.cc        |    2 +-
 kernel/p_Procs_Static.cc     |    2 +-
 kernel/p_polys.cc            |    2 +-
 kernel/page.c                |    2 +-
 kernel/polys-impl.cc         |    2 +-
 kernel/polys.cc              |    2 +-
 kernel/polys0.cc             |    2 +-
 kernel/polys1.cc             |    2 +-
 kernel/prCopy.cc             |    2 +-
 kernel/ratgring.cc           |    2 +-
 kernel/ring.cc               |    2 +-
 kernel/ringgb.cc             |    2 +-
 kernel/ringgb.h              |    2 +-
 kernel/rintegers.cc          |    2 +-
 kernel/rmodulo2m.cc          |    2 +-
 kernel/rmodulon.cc           |    2 +-
 kernel/sbuckets.cc           |    2 +-
 kernel/sca.cc                |    2 +-
 kernel/semic.cc              |    2 +-
 kernel/shiftgb.cc            |    2 +-
 kernel/shortfl.cc            |    2 +-
 kernel/sparsmat.cc           |    2 +-
 kernel/spectrum.cc           |    2 +-
 kernel/splist.cc             |    2 +-
 kernel/summator.cc           |    2 +-
 kernel/syz.cc                |    2 +-
 kernel/syz0.cc               |    2 +-
 kernel/syz1.cc               |    2 +-
 kernel/syz2.cc               |    2 +-
 kernel/syz3.cc               |    2 +-
 kernel/tgb.cc                |    2 +-
 kernel/tgbgauss.cc           |    2 +-
 kernel/tgbgauss.h            |    2 +-
 kernel/timer.cc              |    2 +-
 kernel/tmult.cc              |    2 +-
 kernel/units.cc              |    2 +-
 kernel/walkMain.cc           |    2 +-
 kernel/walkProc.cc           |    2 +-
 kernel/walkSupport.cc        |    2 +-
 kernel/weight.cc             |    2 +-
 kernel/weight0.c             |    2 +-
 179 files changed, 4688 insertions(+), 178 deletions(-)

diff --git a/Singular/Minor.cc b/Singular/Minor.cc
index 402d7e6..4e358c5 100644
--- a/Singular/Minor.cc
+++ b/Singular/Minor.cc
@@ -1,4 +1,4 @@
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <kernel/structs.h>
 #include <kernel/polys.h>
 #include <Minor.h>
diff --git a/Singular/MinorInterface.cc b/Singular/MinorInterface.cc
index c79f694..508f979 100644
--- a/Singular/MinorInterface.cc
+++ b/Singular/MinorInterface.cc
@@ -1,4 +1,4 @@
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <kernel/structs.h>
 #include <kernel/polys.h>
 #include <kernel/ideals.h>
diff --git a/Singular/MinorProcessor.cc b/Singular/MinorProcessor.cc
index 1c08156..6ff81aa 100644
--- a/Singular/MinorProcessor.cc
+++ b/Singular/MinorProcessor.cc
@@ -1,4 +1,4 @@
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <kernel/structs.h>
 #include <kernel/polys.h>
 #include <MinorProcessor.h>
diff --git a/Singular/attrib.cc b/Singular/attrib.cc
index 1f016ef..bbef31e 100644
--- a/Singular/attrib.cc
+++ b/Singular/attrib.cc
@@ -12,7 +12,7 @@
 #include <ctype.h>
 #include <unistd.h>
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <omalloc/omalloc.h>
 #include <kernel/options.h>
 #include <Singular/tok.h>
diff --git a/Singular/calcSVD.cc b/Singular/calcSVD.cc
index bf80b3c..1e889dd 100644
--- a/Singular/calcSVD.cc
+++ b/Singular/calcSVD.cc
@@ -1,5 +1,5 @@
 #include <stdio.h>
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 
 #ifdef HAVE_SVD
 
diff --git a/Singular/claptmpl.cc b/Singular/claptmpl.cc
index 0fa6109..512b353 100644
--- a/Singular/claptmpl.cc
+++ b/Singular/claptmpl.cc
@@ -6,7 +6,7 @@
 * ABSTRACT - instantiation of all templates
 */
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 //#include <vector>
 //using namespace std;
 #ifdef HAVE_FACTORY
diff --git a/Singular/cntrlc.cc b/Singular/cntrlc.cc
index 80552b5..4a37ef5 100644
--- a/Singular/cntrlc.cc
+++ b/Singular/cntrlc.cc
@@ -16,7 +16,7 @@
 #include <signal.h>
 #include <sys/types.h>
 #include <sys/wait.h>
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <omalloc/omalloc.h>
 #include <Singular/tok.h>
 #include <Singular/ipshell.h>
diff --git a/Singular/configure b/Singular/configure
index d72b6bd..7663e6c 100755
--- a/Singular/configure
+++ b/Singular/configure
@@ -10442,4 +10442,3 @@ if test -n "$ac_unrecognized_opts" && test "$enable_option_checking" != no; then
   { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: unrecognized options: $ac_unrecognized_opts" >&5
 $as_echo "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2;}
 fi
-
diff --git a/Singular/configure.in b/Singular/configure.in
index 9c62c22..418a334 100644
--- a/Singular/configure.in
+++ b/Singular/configure.in
@@ -1518,5 +1518,4 @@ if test "$ac_cv_singuname" = "ix86-Win"; then
 fi
 
 AC_OUTPUT(${OUTPUT_MAKEFILES}, \
- cp mod2.h ../kernel/mod2.h; \
  if test "$CONFIG_HEADERS"; then echo timestamp > stamp-h; fi)
diff --git a/Singular/eigenval_ip.cc b/Singular/eigenval_ip.cc
index 5f53709..b9f6030 100644
--- a/Singular/eigenval_ip.cc
+++ b/Singular/eigenval_ip.cc
@@ -5,7 +5,7 @@
 * ABSTRACT: eigenvalues of constant square matrices
 */
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 
 #ifdef HAVE_EIGENVAL
 
diff --git a/Singular/emacs.cc b/Singular/emacs.cc
index 4c800d0..7ef7227 100644
--- a/Singular/emacs.cc
+++ b/Singular/emacs.cc
@@ -17,7 +17,7 @@
 #ifdef ix86_Win
 #include <windows.h>
 #endif
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <Singular/version.h>
 #include <omalloc/omalloc.h>
 
diff --git a/Singular/extra.cc b/Singular/extra.cc
index 45ea3ba..139b9d2 100644
--- a/Singular/extra.cc
+++ b/Singular/extra.cc
@@ -12,7 +12,7 @@
 #include <string.h>
 #include <ctype.h>
 #include <signal.h>
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <misc_ip.h>
 #include <blackbox.h>
 #include <newstruct.h>
diff --git a/Singular/feOpt.cc b/Singular/feOpt.cc
index 81fca1c..166eb2a 100644
--- a/Singular/feOpt.cc
+++ b/Singular/feOpt.cc
@@ -7,7 +7,7 @@
 
 #include <string.h>
 #include <stdlib.h>
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <Singular/feOpt.h>
 #if !defined(GENERATE_OPTION_INDEX) && !defined(ESINGULAR) && !defined(TSINGULAR)
 #include <kernel/options.h>
diff --git a/Singular/fehelp.cc b/Singular/fehelp.cc
index ef96b44..5d4a51c 100644
--- a/Singular/fehelp.cc
+++ b/Singular/fehelp.cc
@@ -12,7 +12,7 @@
 #include <stdlib.h>
 #include <time.h>
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <omalloc/mylimits.h>
 #include <Singular/tok.h>
 #include <omalloc/omalloc.h>
diff --git a/Singular/fglm.cc b/Singular/fglm.cc
index a4c397c..f4a3de3 100644
--- a/Singular/fglm.cc
+++ b/Singular/fglm.cc
@@ -15,7 +15,7 @@
 *   lying in a 0-dimensional ideal.
 */
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 
 #ifdef HAVE_FACTORY
 #include <Singular/tok.h>
diff --git a/Singular/gms.cc b/Singular/gms.cc
index e204043..dc9060e 100644
--- a/Singular/gms.cc
+++ b/Singular/gms.cc
@@ -5,7 +5,7 @@
 * ABSTRACT: Gauss-Manin system normal form
 */
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 
 #ifdef HAVE_GMS
 
diff --git a/Singular/grammar.cc b/Singular/grammar.cc
index d3327ab..e81c78f 100644
--- a/Singular/grammar.cc
+++ b/Singular/grammar.cc
@@ -76,7 +76,7 @@
 #include <stdarg.h>
 #include <string.h>
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <omalloc/mylimits.h>
 #include <omalloc/omalloc.h>
 #include <Singular/tok.h>
diff --git a/Singular/grammar.y b/Singular/grammar.y
index 39e2150..fcb71e2 100644
--- a/Singular/grammar.y
+++ b/Singular/grammar.y
@@ -12,7 +12,7 @@
 #include <stdarg.h>
 #include <string.h>
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <omalloc/mylimits.h>
 #include <omalloc/omalloc.h>
 #include <Singular/tok.h>
diff --git a/Singular/interpolation.cc b/Singular/interpolation.cc
index 4d87ddf..1bf10a8 100644
--- a/Singular/interpolation.cc
+++ b/Singular/interpolation.cc
@@ -2,7 +2,7 @@
 *  Computer Algebra System SINGULAR     *
 ****************************************/
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <kernel/options.h>
 #include <kernel/febase.h>
 #include <kernel/ideals.h>
diff --git a/Singular/iparith.cc b/Singular/iparith.cc
index 33a8c3d..52e2e75 100644
--- a/Singular/iparith.cc
+++ b/Singular/iparith.cc
@@ -12,7 +12,7 @@
 #include <time.h>
 #include <unistd.h>
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <Singular/tok.h>
 #include <kernel/options.h>
 #include <Singular/ipid.h>
diff --git a/Singular/ipassign.cc b/Singular/ipassign.cc
index e6947e4..01b6ef0 100644
--- a/Singular/ipassign.cc
+++ b/Singular/ipassign.cc
@@ -11,7 +11,7 @@
 #include <string.h>
 #include <ctype.h>
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <Singular/tok.h>
 #include <kernel/options.h>
 #include <Singular/ipid.h>
diff --git a/Singular/ipconv.cc b/Singular/ipconv.cc
index a9a7696..431141d 100644
--- a/Singular/ipconv.cc
+++ b/Singular/ipconv.cc
@@ -5,7 +5,7 @@
 * ABSTRACT: automatic type conversions
 */
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <Singular/tok.h>
 #include <Singular/ipid.h>
 #include <kernel/bigintmat.h>
diff --git a/Singular/ipid.cc b/Singular/ipid.cc
index 872f6b6..36c8d7f 100644
--- a/Singular/ipid.cc
+++ b/Singular/ipid.cc
@@ -7,7 +7,7 @@
 
 #include <string.h>
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <Singular/static.h>
 #include <omalloc/omalloc.h>
 #include <Singular/tok.h>
diff --git a/Singular/iplib.cc b/Singular/iplib.cc
index a81bc6d..3142247 100644
--- a/Singular/iplib.cc
+++ b/Singular/iplib.cc
@@ -11,7 +11,7 @@
 #include <ctype.h>
 #include <sys/stat.h>
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <Singular/static.h>
 #include <Singular/tok.h>
 #include <kernel/options.h>
diff --git a/Singular/ipprint.cc b/Singular/ipprint.cc
index ede2210..d8f3916 100644
--- a/Singular/ipprint.cc
+++ b/Singular/ipprint.cc
@@ -5,7 +5,7 @@
 * ABSTRACT: interpreter: printing
 */
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <Singular/tok.h>
 #include <Singular/ipid.h>
 #include <omalloc/omalloc.h>
diff --git a/Singular/ipshell.cc b/Singular/ipshell.cc
index a32c523..32934e7 100644
--- a/Singular/ipshell.cc
+++ b/Singular/ipshell.cc
@@ -11,7 +11,7 @@
 #include <ctype.h>
 #include <math.h>
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <Singular/tok.h>
 #include <kernel/options.h>
 #include <Singular/ipid.h>
diff --git a/Singular/janet.cc b/Singular/janet.cc
index 5633599..f5f7806 100755
--- a/Singular/janet.cc
+++ b/Singular/janet.cc
@@ -3,7 +3,7 @@
 #include <string.h>
 #include <time.h>
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <omalloc/omalloc.h>
 #include <kernel/polys.h>
 #include <kernel/numbers.h>
diff --git a/Singular/libparse.l b/Singular/libparse.l
index 87d7b4b..cfea410 100644
--- a/Singular/libparse.l
+++ b/Singular/libparse.l
@@ -6,7 +6,7 @@
 #include <string.h>
 #include <stdlib.h>
 #include <ctype.h>
-#include <kernel/mod2.h>
+#include "mod2.h"
 #ifdef STANDALONE_PARSER
   #include <Singular/utils.h>
   #define HAVE_LIBPARSER
diff --git a/Singular/lists.cc b/Singular/lists.cc
index 1d851ed..c4875fc 100644
--- a/Singular/lists.cc
+++ b/Singular/lists.cc
@@ -7,7 +7,7 @@
 // to produce a non-inline version from lists.h
 #define LISTS_CC
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <Singular/tok.h>
 #include <kernel/febase.h>
 //#include "ipid.h"
diff --git a/Singular/maps_ip.cc b/Singular/maps_ip.cc
index 4756a1b..65ef0f4 100644
--- a/Singular/maps_ip.cc
+++ b/Singular/maps_ip.cc
@@ -5,7 +5,7 @@
 * ABSTRACT - the mapping of polynomials to other rings
 */
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <Singular/tok.h>
 #include <kernel/febase.h>
 #include <kernel/polys.h>
diff --git a/Singular/minpoly.cc b/Singular/minpoly.cc
index c319099..87bb58e 100644
--- a/Singular/minpoly.cc
+++ b/Singular/minpoly.cc
@@ -6,7 +6,7 @@
 
 
 #include<cmath>
-#include<Singular/mod2.h>
+#include <Singular/mod2.h>
 //#include<iomanip>
 
 #include "minpoly.h"
diff --git a/Singular/misc_ip.cc b/Singular/misc_ip.cc
index 47c592a..bd2c2b5 100644
--- a/Singular/misc_ip.cc
+++ b/Singular/misc_ip.cc
@@ -14,7 +14,7 @@
 /*****************************************************************************/
 
 // include header files
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <Singular/lists.h>
 #include <kernel/longrat.h>
 #include <Singular/misc_ip.h>
diff --git a/Singular/mpsr_Error.cc b/Singular/mpsr_Error.cc
index c189743..44a0b28 100644
--- a/Singular/mpsr_Error.cc
+++ b/Singular/mpsr_Error.cc
@@ -11,7 +11,7 @@
  * Change History (most recent first):
  *
  ***************************************************************/
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 
 #ifdef HAVE_MPSR
 
diff --git a/Singular/mpsr_Get.cc b/Singular/mpsr_Get.cc
index c681b03..3fac95a 100644
--- a/Singular/mpsr_Get.cc
+++ b/Singular/mpsr_Get.cc
@@ -12,7 +12,7 @@
  *
  ***************************************************************/
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 
 #ifdef HAVE_MPSR
 
diff --git a/Singular/mpsr_GetMisc.cc b/Singular/mpsr_GetMisc.cc
index 641b82f..58b536b 100644
--- a/Singular/mpsr_GetMisc.cc
+++ b/Singular/mpsr_GetMisc.cc
@@ -12,7 +12,7 @@
  *
  ***************************************************************/
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 
 #ifdef HAVE_MPSR
 
diff --git a/Singular/mpsr_GetPoly.cc b/Singular/mpsr_GetPoly.cc
index 24bd201..88eef83 100644
--- a/Singular/mpsr_GetPoly.cc
+++ b/Singular/mpsr_GetPoly.cc
@@ -10,7 +10,7 @@
  *
  *
  ***************************************************************/
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 
 #ifdef HAVE_MPSR
 #include "mylimits.h"
diff --git a/Singular/mpsr_Put.cc b/Singular/mpsr_Put.cc
index 539e408..449ff9e 100644
--- a/Singular/mpsr_Put.cc
+++ b/Singular/mpsr_Put.cc
@@ -13,7 +13,7 @@
  *    Updated putting routines to MP and MPP v1.1
  *
  ***************************************************************/
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 
 #ifdef HAVE_MPSR
 
diff --git a/Singular/mpsr_PutPoly.cc b/Singular/mpsr_PutPoly.cc
index bcd93f4..bf57ac8 100644
--- a/Singular/mpsr_PutPoly.cc
+++ b/Singular/mpsr_PutPoly.cc
@@ -13,7 +13,7 @@
  *    Updated routines to MP and MPP v1.1
  *
  ***************************************************************/
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 
 #ifdef HAVE_MPSR
 
diff --git a/Singular/mpsr_Tok.cc b/Singular/mpsr_Tok.cc
index a3801f5..a6818df 100644
--- a/Singular/mpsr_Tok.cc
+++ b/Singular/mpsr_Tok.cc
@@ -16,7 +16,7 @@
 #include <sys/types.h>
 #include <unistd.h>
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 
 #ifdef HAVE_MPSR
 
diff --git a/Singular/mpsr_sl.cc b/Singular/mpsr_sl.cc
index 1253e38..5e8f571 100644
--- a/Singular/mpsr_sl.cc
+++ b/Singular/mpsr_sl.cc
@@ -8,7 +8,7 @@
  *  Created: 12/00
  *******************************************************************/
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 
 #ifdef HAVE_MPSR
 
diff --git a/Singular/ndbm.cc b/Singular/ndbm.cc
index c03cb68..2cb2986 100644
--- a/Singular/ndbm.cc
+++ b/Singular/ndbm.cc
@@ -10,7 +10,7 @@
 //
 //**************************************************************************/
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #ifdef HAVE_DBM
 #ifndef HPUX_9
 #include <strings.h>
diff --git a/Singular/pcv.cc b/Singular/pcv.cc
index 0f5091c..d9391f1 100644
--- a/Singular/pcv.cc
+++ b/Singular/pcv.cc
@@ -5,7 +5,7 @@
 * ABSTRACT: conversion between polys and coef vectors
 */
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 
 #ifdef HAVE_PCV
 //#if !defined(HAVE_DYNAMIC_LOADING) || defined(BUILD_MODULE)
diff --git a/Singular/pipeLink.cc b/Singular/pipeLink.cc
index 913c88b..47e3b77 100644
--- a/Singular/pipeLink.cc
+++ b/Singular/pipeLink.cc
@@ -16,7 +16,7 @@
 #include <sys/socket.h>
 
 
-#include "mod2.h"
+#include <Singular/mod2.h>
 
 #include "tok.h"
 #include "ipid.h"
diff --git a/Singular/scanner.cc b/Singular/scanner.cc
index aa186ce..9847fa1 100644
--- a/Singular/scanner.cc
+++ b/Singular/scanner.cc
@@ -560,7 +560,7 @@ char *yytext;
 #include <stdlib.h>
 #include <ctype.h>
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <omalloc/omalloc.h>
 #include <Singular/tok.h>
 #include <Singular/stype.h>
diff --git a/Singular/scanner.l b/Singular/scanner.l
index 8298e71..b78f242 100644
--- a/Singular/scanner.l
+++ b/Singular/scanner.l
@@ -7,7 +7,7 @@
 #include <stdlib.h>
 #include <ctype.h>
 
-#include <kernel/mod2.h>
+#include "mod2.h"
 #include <omalloc/omalloc.h>
 #include <Singular/tok.h>
 #include <Singular/stype.h>
diff --git a/Singular/sdb.cc b/Singular/sdb.cc
index ea0011f..be15a91 100644
--- a/Singular/sdb.cc
+++ b/Singular/sdb.cc
@@ -7,7 +7,7 @@
 
 #include <unistd.h>   // for unlink,fork,execlp,getpid
 #include <sys/wait.h> // for wait
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <Singular/tok.h>
 #include <kernel/options.h>
 #include <omalloc/omalloc.h>
diff --git a/Singular/silink.cc b/Singular/silink.cc
index b3af337..3d64a87 100644
--- a/Singular/silink.cc
+++ b/Singular/silink.cc
@@ -12,7 +12,7 @@
 #include <sys/stat.h>
 #include <unistd.h>
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <Singular/tok.h>
 #include <kernel/options.h>
 #include <omalloc/omalloc.h>
diff --git a/Singular/sing_dbm.cc b/Singular/sing_dbm.cc
index bcbd993..fe8990d 100644
--- a/Singular/sing_dbm.cc
+++ b/Singular/sing_dbm.cc
@@ -12,7 +12,7 @@
 #  include <fcntl.h>
 #  include <errno.h>
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 
 #ifdef HAVE_DBM
 
diff --git a/Singular/sing_win.cc b/Singular/sing_win.cc
index 00a7062..30dc60f 100644
--- a/Singular/sing_win.cc
+++ b/Singular/sing_win.cc
@@ -6,7 +6,7 @@
 * ABSTRACT: Windows specific routines
 */
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #ifdef ix86_Win
 #include <windows.h>
 #include <winuser.h>
diff --git a/Singular/slInit_Dynamic.cc b/Singular/slInit_Dynamic.cc
index 3830612..0fa703c 100644
--- a/Singular/slInit_Dynamic.cc
+++ b/Singular/slInit_Dynamic.cc
@@ -13,7 +13,7 @@
  * MP link Extension inits
  *
  ***************************************************************/
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <Singular/silink.h>
 #include <Singular/slInit.h>
 #include <kernel/mod_raw.h>
diff --git a/Singular/slInit_Static.cc b/Singular/slInit_Static.cc
index a19a4f8..207dea0 100644
--- a/Singular/slInit_Static.cc
+++ b/Singular/slInit_Static.cc
@@ -13,7 +13,7 @@
  * MP link Extension inits
  *
  ***************************************************************/
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <Singular/silink.h>
 #include <Singular/slInit.h>
 
diff --git a/Singular/ssiLink.cc b/Singular/ssiLink.cc
index ff19a2a..938a60e 100644
--- a/Singular/ssiLink.cc
+++ b/Singular/ssiLink.cc
@@ -22,7 +22,7 @@
 
 
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 // #include "mod2.h"
 
 #include <Singular/tok.h>
diff --git a/Singular/subexpr.cc b/Singular/subexpr.cc
index 873c0a9..0415134 100644
--- a/Singular/subexpr.cc
+++ b/Singular/subexpr.cc
@@ -11,7 +11,7 @@
 #include <ctype.h>
 #include <unistd.h>
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <kernel/intvec.h>
 #include <kernel/bigintmat.h>
 #include <Singular/tok.h>
diff --git a/Singular/tesths.cc b/Singular/tesths.cc
index 6ecb9b1..3957c83 100644
--- a/Singular/tesths.cc
+++ b/Singular/tesths.cc
@@ -12,7 +12,7 @@
 #include <stdlib.h>
 #include <time.h>
 #include <errno.h>
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <Singular/tok.h>
 #include <kernel/options.h>
 #include <Singular/ipshell.h>
diff --git a/Singular/walk.cc b/Singular/walk.cc
index 49bd804..d5b61f2 100644
--- a/Singular/walk.cc
+++ b/Singular/walk.cc
@@ -45,7 +45,7 @@
 #include <sys/types.h>
 
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <kernel/intvec.h>
 #include <Singular/cntrlc.h>
 #include <kernel/options.h>
diff --git a/Singular/walk_ip.cc b/Singular/walk_ip.cc
index b1627f0..8afc077 100644
--- a/Singular/walk_ip.cc
+++ b/Singular/walk_ip.cc
@@ -11,7 +11,7 @@
 #include <ctype.h>
 #include <math.h>
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <Singular/tok.h>
 #include <kernel/options.h>
 #include <Singular/ipid.h>
diff --git a/Singular/wrapper.cc b/Singular/wrapper.cc
index 07a2e2f..7884e9f 100755
--- a/Singular/wrapper.cc
+++ b/Singular/wrapper.cc
@@ -1,5 +1,5 @@
 #include <string.h>
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <kernel/febase.h>
 #include <kernel/polys.h>
 #include <kernel/kstd1.h>
diff --git a/kernel/F4.cc b/kernel/F4.cc
index 93cfedb..d72939c 100644
--- a/kernel/F4.cc
+++ b/kernel/F4.cc
@@ -1,4 +1,4 @@
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <kernel/F4.h>
 #include <kernel/tgb_internal.h>
 #include <kernel/tgbgauss.h>
diff --git a/kernel/F5cData.cc b/kernel/F5cData.cc
index be2021a..384ebc9 100644
--- a/kernel/F5cData.cc
+++ b/kernel/F5cData.cc
@@ -9,7 +9,7 @@
  * these data types is defined.
  */
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 
 #ifdef HAVE_F5C
 #include <kernel/kutil.h>
diff --git a/kernel/F5cLists.cc b/kernel/F5cLists.cc
index daab9db..8922036 100644
--- a/kernel/F5cLists.cc
+++ b/kernel/F5cLists.cc
@@ -1,4 +1,4 @@
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 
 #ifdef HAVE_F5C
 #include <kernel/kutil.h>
diff --git a/kernel/GMPrat.cc b/kernel/GMPrat.cc
index 8d73221..628d90d 100644
--- a/kernel/GMPrat.cc
+++ b/kernel/GMPrat.cc
@@ -8,7 +8,7 @@
 
 #define  GMPRAT_CC
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 
 #ifdef HAVE_SPECTRUM
 
diff --git a/kernel/Number.h b/kernel/Number.h
index 4428d15..05f52b7 100644
--- a/kernel/Number.h
+++ b/kernel/Number.h
@@ -1,7 +1,7 @@
 #ifndef NUMBERCPP_HEADER
 #define NUMBERCPP_HEADER
 #include <boost/intrusive_ptr.hpp>
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <kernel/numbers.h>
 #include <kernel/febase.h>
 #include <kernel/ring.h>
diff --git a/kernel/Poly.h b/kernel/Poly.h
index d04b1cc..ab70d30 100644
--- a/kernel/Poly.h
+++ b/kernel/Poly.h
@@ -1,6 +1,6 @@
 #ifndef POLYCPP_HEADER
 #define POLYCPP_HEADER
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <kernel/IIntvec.h>
 #include <kernel/numbers.h>
 #include <kernel/Number.h>
diff --git a/kernel/PowerSeries.h b/kernel/PowerSeries.h
index 809d0b5..7c3f764 100644
--- a/kernel/PowerSeries.h
+++ b/kernel/PowerSeries.h
@@ -1,6 +1,6 @@
 #ifndef POWER_SERIES_HEADER
 #define POWER_SERIES_HEADER
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <kernel/Poly.h>
 template <class traits> class PowerSeriesInputIterator:
 public std::
diff --git a/kernel/clapconv.cc b/kernel/clapconv.cc
index b017e53..07f3c6f 100644
--- a/kernel/clapconv.cc
+++ b/kernel/clapconv.cc
@@ -7,7 +7,7 @@
 */
 
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #ifdef HAVE_FACTORY
 #include <omalloc/omalloc.h>
 #include <kernel/structs.h>
diff --git a/kernel/clapsing.cc b/kernel/clapsing.cc
index 606578b..0c327cf 100644
--- a/kernel/clapsing.cc
+++ b/kernel/clapsing.cc
@@ -7,7 +7,7 @@
 */
 
 //#define FACTORIZE2_DEBUG
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <omalloc/omalloc.h>
 #ifdef HAVE_FACTORY
 #define SI_DONT_HAVE_GLOBAL_VARS
diff --git a/kernel/dError.c b/kernel/dError.c
index 5ea1d19..6c229cb 100644
--- a/kernel/dError.c
+++ b/kernel/dError.c
@@ -11,7 +11,7 @@
 #define DERROR_C
 #include <stdarg.h>
 #include <stdio.h>
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <Singular/distrib.h>
 #ifdef HAVE_CONFIG_H
 #include <omalloc/omalloc.h>
diff --git a/kernel/digitech.cc b/kernel/digitech.cc
index 25df89f..6039e43 100644
--- a/kernel/digitech.cc
+++ b/kernel/digitech.cc
@@ -1,7 +1,7 @@
 /****************************************
 *  Computer Algebra System SINGULAR     *
 ****************************************/
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <kernel/ring.h>
 
 #include <kernel/digitech.h>
diff --git a/kernel/digitech.h b/kernel/digitech.h
index b8d0fd3..a1ceb37 100644
--- a/kernel/digitech.h
+++ b/kernel/digitech.h
@@ -1,6 +1,6 @@
 #ifndef DIGITECH_HEADER
 #define DIGITECH_HEADER
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <kernel/polys.h>
 void bit_reduce(poly & f,ring r);
 poly uni_subst_bits(poly outer_uni, poly inner_multi, ring r);
diff --git a/kernel/eigenval.cc b/kernel/eigenval.cc
index a0934a3..d2ce108 100644
--- a/kernel/eigenval.cc
+++ b/kernel/eigenval.cc
@@ -5,7 +5,7 @@
 * ABSTRACT: eigenvalues of constant square matrices
 */
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 
 #ifdef HAVE_EIGENVAL
 
diff --git a/kernel/f5c.cc b/kernel/f5c.cc
index c1e3b33..caebac9 100644
--- a/kernel/f5c.cc
+++ b/kernel/f5c.cc
@@ -1,4 +1,4 @@
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #ifdef HAVE_F5C
 #include <unistd.h>
 #include <kernel/structs.h>
diff --git a/kernel/f5data.cc b/kernel/f5data.cc
index d872f61..d606a4e 100644
--- a/kernel/f5data.cc
+++ b/kernel/f5data.cc
@@ -5,7 +5,7 @@
 /*
 * ABSTRACT: lpolynomial definition 
 */
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 
 #ifdef HAVE_F5
 #include <kernel/kutil.h>
diff --git a/kernel/f5gb.cc b/kernel/f5gb.cc
index d308517..72b20d0 100644
--- a/kernel/f5gb.cc
+++ b/kernel/f5gb.cc
@@ -5,7 +5,7 @@
 * ABSTRACT: f5gb interface
 */
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #ifdef HAVE_F5
 #include <unistd.h>
 #include <omp.h>
diff --git a/kernel/f5lists.cc b/kernel/f5lists.cc
index ae0bcab..4546a17 100644
--- a/kernel/f5lists.cc
+++ b/kernel/f5lists.cc
@@ -1,4 +1,4 @@
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 
 #ifdef HAVE_F5
 #include <kernel/kutil.h>
diff --git a/kernel/fast_maps.cc b/kernel/fast_maps.cc
index 619c4fd..c38fd20 100644
--- a/kernel/fast_maps.cc
+++ b/kernel/fast_maps.cc
@@ -7,7 +7,7 @@
  *  Author:  obachman (Olaf Bachmann)
  *  Created: 02/01
  *******************************************************************/
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <omalloc/omalloc.h>
 #include <kernel/options.h>
 #include <kernel/p_polys.h>
diff --git a/kernel/fast_mult.cc b/kernel/fast_mult.cc
index 120a29a..ae42b3b 100644
--- a/kernel/fast_mult.cc
+++ b/kernel/fast_mult.cc
@@ -1,7 +1,7 @@
 /****************************************
 *  Computer Algebra System SINGULAR     *
 ****************************************/
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <kernel/ring.h>
 #include <kernel/fast_mult.h>
 #include <kernel/kbuckets.h>
diff --git a/kernel/fast_mult.h b/kernel/fast_mult.h
index 43a4344..41e97e4 100644
--- a/kernel/fast_mult.h
+++ b/kernel/fast_mult.h
@@ -1,6 +1,6 @@
 #ifndef fast_mult_header
 #define fast_mult_header
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <kernel/polys.h>
 poly unifastmult(poly f,poly g, ring r);
 poly multifastmult(poly f, poly g, ring r);
diff --git a/kernel/feResource.cc b/kernel/feResource.cc
index 30ace22..01bb816 100644
--- a/kernel/feResource.cc
+++ b/kernel/feResource.cc
@@ -9,7 +9,7 @@
 #include <unistd.h>
 #include <string.h>
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #ifdef AIX_4
 #define HAVE_PUTENV 1
 #endif
diff --git a/kernel/febase.cc b/kernel/febase.cc
index 865c9d7..725eca2 100644
--- a/kernel/febase.cc
+++ b/kernel/febase.cc
@@ -7,7 +7,7 @@
 
 /* I need myfread in standalone_parser */
 #ifndef STANDALONE_PARSER
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 
 #include <stdlib.h>
 #include <stdio.h>
diff --git a/kernel/fegetopt.c b/kernel/fegetopt.c
index 47fd931..3cf3db8 100644
--- a/kernel/fegetopt.c
+++ b/kernel/fegetopt.c
@@ -31,7 +31,7 @@
 */
 
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 
 #ifndef __STDC__
 #  ifndef const
diff --git a/kernel/feread.cc b/kernel/feread.cc
index d861fc6..8f67c5e 100644
--- a/kernel/feread.cc
+++ b/kernel/feread.cc
@@ -5,7 +5,7 @@
 * ABSTRACT: input from ttys, simulating fgets
 */
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 
 // ----------------------------------------
 // system settings:
diff --git a/kernel/fereadl.c b/kernel/fereadl.c
index d2f6c1c..1c495be 100644
--- a/kernel/fereadl.c
+++ b/kernel/fereadl.c
@@ -6,7 +6,7 @@
 */
 
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <kernel/febase.h>
 #include <omalloc/omalloc.h>
 #include <kernel/structs.h>
diff --git a/kernel/ffields.cc b/kernel/ffields.cc
index be5aeb7..255e590 100644
--- a/kernel/ffields.cc
+++ b/kernel/ffields.cc
@@ -6,7 +6,7 @@
 */
 
 #include <string.h>
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <omalloc/mylimits.h>
 #include <kernel/febase.h>
 #include <omalloc/omalloc.h>
diff --git a/kernel/fglmcomb.cc b/kernel/fglmcomb.cc
index d8b42a2..4c11eab 100644
--- a/kernel/fglmcomb.cc
+++ b/kernel/fglmcomb.cc
@@ -7,7 +7,7 @@
 * ABSTRACT -
 */
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 
 #ifdef HAVE_FACTORY
 #include <kernel/options.h>
diff --git a/kernel/fglmgauss.cc b/kernel/fglmgauss.cc
index 933e26c..b64613a 100644
--- a/kernel/fglmgauss.cc
+++ b/kernel/fglmgauss.cc
@@ -8,7 +8,7 @@
 *  to find linear dependecies of fglmVectors.
 */
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 
 #ifdef  HAVE_FACTORY
 #include <kernel/structs.h>
diff --git a/kernel/fglmhom.cc b/kernel/fglmhom.cc
index 16ead96..4636bea 100644
--- a/kernel/fglmhom.cc
+++ b/kernel/fglmhom.cc
@@ -9,7 +9,7 @@
 */
 
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #if 0
 #include <factoryconf.h>
 #ifndef NOSTREAMIO
diff --git a/kernel/fglmvec.cc b/kernel/fglmvec.cc
index a0a4300..75abda1 100644
--- a/kernel/fglmvec.cc
+++ b/kernel/fglmvec.cc
@@ -11,7 +11,7 @@
 *   specialized for this purpose.
 */
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 
 #ifdef HAVE_FACTORY
 #include <omalloc/omalloc.h>
diff --git a/kernel/fglmzero.cc b/kernel/fglmzero.cc
index 5224374..4cac366 100644
--- a/kernel/fglmzero.cc
+++ b/kernel/fglmzero.cc
@@ -17,7 +17,7 @@
  * o FindUnivariatePolys added
  */
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 
 #ifdef HAVE_FACTORY
 #include <kernel/options.h>
diff --git a/kernel/gfan.cc b/kernel/gfan.cc
new file mode 100644
index 0000000..55c9431
--- /dev/null
+++ b/kernel/gfan.cc
@@ -0,0 +1,4512 @@
+/*
+Compute the Groebner fan of an ideal
+$Author: monerjan $
+$Date: 2009/11/03 06:57:32 $
+$Header: /usr/local/Singular/cvsroot/kernel/gfan.cc,v 1.103 2009/11/03 06:57:32 monerjan Exp $
+$Id: gfan.cc 14493 2012-01-16 11:00:07Z motsak $
+*/
+
+#include <Singular/mod2.h>
+
+#ifdef HAVE_FANS
+#include <kernel/options.h>
+#include <kernel/kstd1.h>
+#include <kernel/kutil.h>
+#include <kernel/polys.h>
+#include <kernel/ideals.h>
+#include <kernel/kmatrix.h>
+#include <kernel/GMPrat.h>
+
+#include "ring.h"	//apparently not needed
+#include <Singular/lists.h>
+#include <kernel/prCopy.h>
+#include <kernel/stairc.h>
+#include <fstream>	//read-write cones to files
+#include <string>
+#include <sstream>
+#include <stdlib.h>
+#include <assert.h>
+#include <gfanlib/gfanlib.h>
+
+/*DO NOT REMOVE THIS*/
+#ifndef GMPRATIONAL
+#define GMPRATIONAL
+#endif
+
+#include <setoper.h>
+#include <cdd.h>
+#include <cddmp.h>
+
+#ifndef gfan_DEBUG
+// #define gfan_DEBUG
+#ifndef gfan_DEBUGLEVEL
+#define gfan_DEBUGLEVEL 1
+#endif
+#endif
+
+//NOTE Defining this will slow things down!
+//Only good for very coarse profiling
+// #define gfanp
+#ifdef gfanp
+  #include <sys/time.h>
+  #include <iostream>
+#endif
+
+//NOTE DO NOT REMOVE THIS
+#ifndef SHALLOW
+  #define SHALLOW
+#endif
+
+#ifndef USE_ZFAN
+  #define USE_ZFAN
+#endif
+
+#include <gfan.h>
+using namespace std;
+
+#define ivIsStrictlyPositive iv64isStrictlyPositive
+
+/**
+*\brief Class facet
+*	Implements the facet structure as a linked list
+*
+*/
+		
+/** \brief The default constructor for facets
+*/
+facet::facet()			
+{
+	// Pointer to next facet.  */
+	/* Defaults to NULL. This way there is no need to check explicitly */
+	this->fNormal=NULL;
+	this->interiorPoint=NULL;		
+	this->UCN=0;
+	this->codim2Ptr=NULL;
+	this->codim=1;		//default for (codim-1)-facets
+	this->numCodim2Facets=0;
+	this->numRays=0;
+	this->flipGB=NULL;
+	this->next=NULL;
+	this->prev=NULL;		
+	this->flipRing=NULL;	//the ring on the other side
+	this->isFlippable=FALSE;
+}
+		
+/** \brief Constructor for facets of codim == 2
+* Note that as of now the code of the constructors is only for facets and codim2-faces. One
+* could easily change that by renaming numCodim2Facets to numCodimNminusOneFacets or similar
+*/
+facet::facet(const int &n)
+{
+	this->fNormal=NULL;
+	this->interiorPoint=NULL;			
+	this->UCN=0;
+	this->codim2Ptr=NULL;
+	if(n==2)
+	{
+		this->codim=n;
+	}//NOTE Handle exception here!			
+	this->numCodim2Facets=0;
+	this->numRays=0;
+	this->flipGB=NULL;
+	this->next=NULL;
+	this->prev=NULL;
+	this->flipRing=NULL;
+	this->isFlippable=FALSE;
+}
+		
+/** \brief The copy constructor
+* By default only copies the fNormal, f2Normals and UCN
+*/
+facet::facet(const facet& f)
+{
+	this->fNormal=iv64Copy(f.fNormal);
+	this->UCN=f.UCN;
+	this->isFlippable=f.isFlippable;
+	//Needed for flip2
+	//NOTE ONLY REFERENCE
+	this->interiorPoint=iv64Copy(f.interiorPoint);//only referencing is prolly not the best thing to do in a copy constructor
+	facet* f2Copy;
+	f2Copy=f.codim2Ptr;
+	facet* f2Act;
+	f2Act=this->codim2Ptr;
+	while(f2Copy!=NULL)
+	{
+		if(f2Act==NULL
+#ifndef NDEBUG
+  #if SIZEOF_LONG==8
+				 || f2Act==(facet*)0xfefefefefefefefe
+  #elif SIZEOF_LONG==4
+				 || f2Act==(facet*)0xfefefefe
+  #endif
+#endif
+		  )
+		{
+			f2Act=new facet(2);
+			this->codim2Ptr=f2Act;			
+		}
+		else
+		{
+			facet* marker;
+			marker = f2Act;
+			f2Act->next = new facet(2);
+			f2Act = f2Act->next;
+			f2Act->prev = marker;
+		}
+		int64vec *f2Normal;
+		f2Normal = f2Copy->getFacetNormal();
+// 		f2Act->setFacetNormal(f2Copy->getFacetNormal());
+		f2Act->setFacetNormal(f2Normal);
+		delete f2Normal;
+		f2Act->setUCN(f2Copy->getUCN());
+		f2Copy = f2Copy->next;
+	}	
+}
+
+/** \brief Shallow copy constructor for facets
+* We only need the interior point for equality testing
+*/
+facet* facet::shallowCopy(const facet& f)
+{
+	facet *res = new facet();
+	res->fNormal=(int64vec * const)f.fNormal;
+	res->UCN=f.UCN;
+	res->isFlippable=f.isFlippable;
+	res->interiorPoint=(int64vec * const)f.interiorPoint;
+	res->codim2Ptr=(facet * const)f.codim2Ptr;
+	res->prev=NULL;
+	res->next=NULL;
+	res->flipGB=NULL;
+	res->flipRing=NULL;
+	return res;
+}
+
+void facet::shallowDelete()
+{
+#ifndef NDEBUG
+// 	printf("shallowdel at UCN %i\n", this->getUCN());
+#endif
+	this->fNormal=NULL;
+// 	this->UCN=0;
+	this->interiorPoint=NULL;
+	this->codim2Ptr=NULL;
+	this->prev=NULL;
+	this->next=NULL;
+	this->flipGB=NULL;
+	this->flipRing=NULL;
+	assert(this->fNormal==NULL);	
+// 	delete(this);
+}
+		
+/** The default destructor */
+facet::~facet()
+{
+#ifndef NDEBUG
+// 	printf("~facet at UCN %i\n",this->getUCN());
+#endif
+	if(this->fNormal!=NULL)
+		delete this->fNormal;
+	if(this->interiorPoint!=NULL)
+		delete this->interiorPoint;
+	/* Cleanup the codim2-structure */
+// 	if(this->codim==2)
+// 	{
+// 		facet *codim2Ptr;
+// 		codim2Ptr = this->codim2Ptr;
+// 		while(codim2Ptr!=NULL)
+// 		{
+// 			if(codim2Ptr->fNormal!=NULL)
+// 			{
+// 				delete codim2Ptr->fNormal;//NOTE Do not want this anymore since the rays are now in gcone!
+// 				codim2Ptr = codim2Ptr->next;
+// 			}
+// 		}
+// 	}
+	//The rays are stored in the cone!
+	if(this->flipGB!=NULL)
+		idDelete((ideal *)&this->flipGB);
+// 	if(this->flipRing!=NULL && this->flipRing->idroot!=(idhdl)0xfbfbfbfbfbfbfbfb)
+// 		rDelete(this->flipRing); //See vol II/134
+// 	this->flipRing=NULL;
+	this->prev=NULL;
+	this->next=NULL;
+}
+		
+inline const int64vec *facet::getRef2FacetNormal() const
+{
+	return(this->fNormal);
+}	
+
+/** Equality check for facets based on unique interior points*/
+static bool areEqual2(facet* f, facet *g)
+{
+#ifdef gfanp
+	gcone::numberOfFacetChecks++;
+	timeval start, end;
+	gettimeofday(&start, 0);
+#endif
+	bool res = TRUE;
+	const int64vec *fIntP = f->getRef2InteriorPoint();
+	const int64vec *gIntP = g->getRef2InteriorPoint();
+	for(int ii=0;ii<pVariables;ii++)
+	{
+		if( (*fIntP)[ii] != (*gIntP)[ii] )
+		{
+			res=FALSE;
+			break;
+		}
+	}
+// 	if( fIntP->compare(gIntP)!=0) res=FALSE;
+#ifdef gfanp
+	gettimeofday(&end, 0);
+	gcone::t_areEqual += (end.tv_sec - start.tv_sec + 1e-6*(end.tv_usec - start.tv_usec));
+#endif	
+	return res;
+}
+
+/** \brief Comparison of facets
+ * called from enqueueNewFacets
+* The facet normals are primitve vectors since we call gcone::normalize() on all cones.
+* Hence it should suffice to check whether facet normal f equals minus facet normal s.
+* If so we check the extremal rays
+*
+* BEWARE: It would be better to use const int64vec* but that will lead to call something like
+* int foo=((int64vec*)f2Normal)->compare((int64vec*)s2Normal) resulting in much higher memory usage
+*/
+static bool areEqual(facet *f, facet *s)
+{
+#ifdef gfanp
+	gcone::numberOfFacetChecks++;
+	timeval start, end;
+	gettimeofday(&start, 0);
+#endif
+	bool res = TRUE;
+	int notParallelCtr=0;
+	int ctr=0;
+	const int64vec* fNormal; //No new since iv64Copy and therefore getFacetNormal return a new
+	const int64vec* sNormal;
+	fNormal = f->getRef2FacetNormal();
+	sNormal = s->getRef2FacetNormal();
+#include "intvec.h"
+	//Do not need parallelity. Too time consuming
+//  	if(!isParallel(*fNormal,*sNormal))
+// 	if(fNormal->compare(ivNeg(sNormal))!=0)//This results in a Mandelbug
+ // 		notParallelCtr++;
+// 	else//parallelity, so we check the codim2-facets
+	int64vec *fNRef=const_cast<int64vec*>(fNormal);
+	int64vec *sNRef=const_cast<int64vec*>(sNormal);
+	if(isParallel(*fNRef,*sNRef))
+// 	if(fNormal->compare((sNormal))!=0)//Behold! Teh definitive Mandelbug
+	{
+		facet* f2Act;
+		facet* s2Act;
+		f2Act = f->codim2Ptr;		
+		ctr=0;
+		while(f2Act!=NULL)
+		{
+			const int64vec* f2Normal;
+			f2Normal = f2Act->getRef2FacetNormal();
+// 			int64vec *f2Ref=const_cast<int64vec*>(f2Normal);
+			s2Act = s->codim2Ptr;
+			while(s2Act!=NULL)
+			{
+				const int64vec* s2Normal;
+				s2Normal = s2Act->getRef2FacetNormal();
+// 				bool foo=areEqual(f2Normal,s2Normal);
+// 				int64vec *s2Ref=const_cast<int64vec*>(s2Normal);
+				int foo=f2Normal->compare(s2Normal);
+				if(foo==0)
+					ctr++;
+				s2Act = s2Act->next;
+			}
+			f2Act = f2Act->next;
+		}		
+	}
+	if(ctr==f->numCodim2Facets)
+		res=TRUE;
+	else
+	{
+#ifdef gfanp
+		gcone::parallelButNotEqual++;
+#endif
+		res=FALSE;
+	}
+#ifdef gfanp
+	gettimeofday(&end, 0);
+	gcone::t_areEqual += (end.tv_sec - start.tv_sec + 1e-6*(end.tv_usec - start.tv_usec));
+#endif
+	return res;
+}	
+		
+/** Stores the facet normal \param int64vec*/
+inline void facet::setFacetNormal(int64vec *iv)
+{
+	if(this->fNormal!=NULL)
+		delete this->fNormal;
+	this->fNormal = iv64Copy(iv);			
+}
+		
+/** Hopefully returns the facet normal 
+* Mind: iv64Copy returns a new int64vec, so use this in the following way:
+* int64vec *iv;
+* iv = this->getFacetNormal();
+* [...]
+* delete(iv);
+*/
+inline int64vec *facet::getFacetNormal() const
+{				
+	return iv64Copy(this->fNormal);
+}
+
+/** Method to print the facet normal*/
+inline void facet::printNormal() const
+{
+	fNormal->show();
+}
+		
+/** Store the flipped GB*/
+inline void facet::setFlipGB(ideal I)
+{
+	this->flipGB=idCopy(I);
+}
+		
+/** Returns a pointer to the flipped GB
+Seems not be used
+Anyhow idCopy would make sense here.
+*/
+inline ideal facet::getFlipGB()
+{
+	return this->flipGB;
+}
+		
+/** Print the flipped GB*/
+inline void facet::printFlipGB()
+{
+#ifndef NDEBUG
+	idShow(this->flipGB);
+#endif
+}
+		
+/** Set the UCN */
+inline void facet::setUCN(int n)
+{
+	this->UCN=n;
+}
+		
+/** \brief Get the UCN 
+* Returns the UCN iff this != NULL, else -1
+*/
+inline int facet::getUCN()
+{
+#ifndef NDEBUG
+  #if SIZEOF_LONG==8
+	if((this!=NULL && this!=(facet * const)0xfbfbfbfbfbfbfbfb))
+  #elif SIZEOF_LONG==4
+	if((this!=NULL && this!=(facet * const)0xfbfbfbfb))
+  #endif
+#endif
+#ifdef NDEBUG
+	if(this!=NULL)
+#endif			
+		return this->UCN;
+	else
+		return -1;
+}
+		
+/** Store an interior point of the facet */
+inline void facet::setInteriorPoint(int64vec *iv)
+{
+	if(this->interiorPoint!=NULL)
+		delete this->interiorPoint;
+	this->interiorPoint = iv64Copy(iv);
+}
+		
+/** Returns a pointer to this->interiorPoint
+* MIND: iv64Copy returns a new int64vec
+* @see facet::getFacetNormal
+*/
+inline int64vec *facet::getInteriorPoint()
+{
+	return iv64Copy(this->interiorPoint);
+}
+
+inline const int64vec *facet::getRef2InteriorPoint()
+{
+	return (this->interiorPoint);
+}
+		
+/** \brief Debugging function
+* prints the facet normal an all (codim-2)-facets that belong to it
+*/
+volatile void facet::fDebugPrint()
+{
+  #ifndef NDEBUG
+	facet *codim2Act;			
+	codim2Act = this->codim2Ptr;
+	int64vec *fNormal;
+	fNormal = this->getFacetNormal();	
+	printf("=======================\n");
+	printf("Facet normal = (");fNormal->show(1,1);printf(")\n");
+	printf("-----------------------\n");
+	printf("Codim2 facets:\n");
+	while(codim2Act!=NULL)
+	{
+		int64vec *f2Normal;
+		f2Normal = codim2Act->getFacetNormal();
+		printf("(");f2Normal->show(1,0);printf(")\n");
+		codim2Act = codim2Act->next;
+		delete f2Normal;
+	}
+	printf("=======================\n");
+ 	delete fNormal;
+  #endif
+}
+
+
+/**
+*\brief Implements the cone structure
+*
+* A cone is represented by a linked list of facet normals
+* @see facet
+*/
+
+
+/** \brief Default constructor. 
+ *
+ * Initialises this->next=NULL and this->facetPtr=NULL
+ */
+gcone::gcone()
+{
+	this->next=NULL;
+	this->prev=NULL;
+	this->facetPtr=NULL;	//maybe this->facetPtr = new facet();			
+	this->baseRing=currRing;
+	this->counter++;
+	this->UCN=this->counter;			
+	this->numFacets=0;
+	this->ivIntPt=NULL;
+	this->gcRays=NULL;
+}
+		
+/** \brief Constructor with ring and ideal
+ *
+ * This constructor takes the root ring and the root ideal as parameters and stores 
+ * them in the private members gcone::rootRing and gcone::inputIdeal
+ * This constructor is only called once in the computation of the Gröbner fan,
+ * namely for the very first cone. Therefore pred is set to 1.
+ * Might set it to this->UCN though...
+ * Since knowledge of the root ring is only needed when using reverse search,
+ * this constructor is not needed when using the "second" method
+*/
+gcone::gcone(ring r, ideal I)
+{
+	this->next=NULL;
+	this->prev=NULL;
+	this->facetPtr=NULL;			
+	this->inputIdeal=I;
+	this->baseRing=currRing;
+	this->counter++;
+	this->UCN=this->counter;
+	this->pred=1;
+	this->numFacets=0;
+	this->ivIntPt=NULL;
+	this->gcRays=NULL;
+}
+		
+/** \brief Copy constructor 
+ *
+ * Copies a cone, sets this->gcBasis to the flipped GB
+ * Call this only after a successful call to gcone::flip which sets facet::flipGB
+*/		
+gcone::gcone(const gcone& gc, const facet &f)
+{
+	this->next=NULL;
+// 	this->prev=(gcone *)&gc; //comment in to get a tree
+	this->prev=NULL;
+	this->numVars=gc.numVars;
+	this->counter++;
+	this->UCN=this->counter;
+	this->pred=gc.UCN;
+	this->facetPtr=NULL;
+   	this->gcBasis=idrCopyR(f.flipGB, f.flipRing);
+//  	this->inputIdeal=idCopy(this->gcBasis);
+	this->baseRing=rCopy(f.flipRing);
+	this->numFacets=0;
+	this->ivIntPt=NULL;
+	this->gcRays=NULL;
+}
+		
+/** \brief Default destructor 
+*/
+gcone::~gcone()
+{
+#ifndef NDEBUG
+  #if SIZEOF_LONG==8
+	if( ( this->gcBasis!=(ideal)(0xfbfbfbfbfbfbfbfb) ) && (this->gcBasis!=NULL) )
+		idDelete((ideal*)&this->gcBasis);
+  #elif SIZEOF_LONG!=8
+	if(this->gcBasis!=(ideal)0xfbfbfbfb)
+		idDelete((ideal *)&this->gcBasis);
+  #endif
+#else
+	if(this->gcBasis!=NULL)
+		idDelete((ideal *)&this->gcBasis);
+#endif
+// 	idDelete((ideal *)&this->gcBasis);
+// 	if(this->inputIdeal!=NULL)
+// 		idDelete((ideal *)&this->inputIdeal);
+// 	if (this->rootRing!=NULL && this->rootRing!=(ip_sring *)0xfefefefefefefefe)
+// 		rDelete(this->rootRing);
+	if(this->UCN!=1 && this->baseRing!=NULL)
+		rDelete(this->baseRing);
+	facet *fAct;
+	facet *fDel;
+	/*Delete the facet structure*/
+	fAct=this->facetPtr;
+	fDel=fAct;
+	while(fAct!=NULL)
+	{
+		fDel=fAct;
+		fAct=fAct->next;
+		delete fDel;
+	}
+	this->counter--;
+	//should be deleted in noRevS
+// 	dd_FreeMatrix(this->ddFacets);
+	//dd_FreeMatrix(this->ddFacets);
+	for(int ii=0;ii<this->numRays;ii++)
+		delete(gcRays[ii]);
+	omFree(gcRays);
+}			
+
+/** Returns the number of cones existing at the time*/
+inline int gcone::getCounter()
+{
+	return this->counter;
+}
+	
+/** \brief Set the interior point of a cone */
+inline void gcone::setIntPoint(int64vec *iv)
+{
+	if(this->ivIntPt!=NULL)
+		delete this->ivIntPt;
+	this->ivIntPt=iv64Copy(iv);
+}
+		
+/** \brief Returns either a physical copy the interior point of a cone or just a reference to it.*/
+inline int64vec *gcone::getIntPoint(bool shallow)
+{
+	if(shallow==TRUE)
+		return this->ivIntPt;
+	else
+		return iv64Copy(this->ivIntPt);
+}
+		
+/** \brief Print the interior point */
+inline void gcone::showIntPoint()
+{
+	ivIntPt->show();
+}
+		
+/** \brief Print facets
+ * This is mainly for debugging purposes. Usually called from within gdb
+ */
+volatile void gcone::showFacets(const short codim)
+{
+  #ifndef NDEBUG
+	facet *f=this->facetPtr;
+	facet *f2=NULL;
+	if(codim==2)
+		f2=this->facetPtr->codim2Ptr;
+	while(f!=NULL)
+	{
+		int64vec *iv;
+		iv = f->getFacetNormal();
+		printf("(");iv->show(1,0);
+		if(f->isFlippable==FALSE)
+			printf(")* ");
+		else
+			printf(") ");
+		delete iv;
+		if(codim==2)
+		{
+			f2=f->codim2Ptr;
+			while(f2!=NULL)
+			{
+				printf("[");f2->getFacetNormal()->show(1,0);printf("]");
+				f2 = f2->next;
+			}
+			printf("\n");
+		}
+		f=f->next;
+	}
+	printf("\n");
+  #endif
+}
+		
+/** For debugging purposes only */
+static volatile void showSLA(facet &f)
+{
+  #ifndef NDEBUG
+	facet *fAct;
+	fAct = &f;
+	if(fAct!=NULL)
+	{
+		facet *codim2Act;
+		codim2Act = fAct->codim2Ptr;
+		
+		printf("\n");
+		while(fAct!=NULL)
+		{
+			int64vec *fNormal;		
+			fNormal=fAct->getFacetNormal();
+			printf("(");fNormal->show(1,0);
+			if(fAct->isFlippable==TRUE)
+				printf(") ");
+			else
+				printf(")* ");
+			delete fNormal;
+			codim2Act = fAct->codim2Ptr;
+			printf(" Codim2: ");
+			while(codim2Act!=NULL)
+			{
+				int64vec *f2Normal;
+				f2Normal = codim2Act->getFacetNormal();
+				printf("(");f2Normal->show(1,0);printf(") ");
+				delete f2Normal;
+				codim2Act = codim2Act->next;
+			}
+			printf("UCN = %i\n",fAct->getUCN());
+			fAct = fAct->next;
+		}
+	}
+  #endif
+}
+		
+static void idDebugPrint(const ideal &I)
+{
+  #ifndef NDEBUG
+	int numElts=IDELEMS(I);
+	printf("Ideal with %i generators\n", numElts);
+	printf("Leading terms: ");
+	for (int ii=0;ii<numElts;ii++)
+	{
+		pWrite0(pHead(I->m[ii]));
+		printf(",");
+	}
+	printf("\n");
+  #endif
+}
+
+static void invPrint(const ideal &I)
+{
+// 	int numElts=IDELEMS(I);
+// 	cout << "inv = ";
+// 	for(int ii=0;ii<numElts;ii++);
+// 	{
+// 		pWrite0(pHead(I->m[ii]));
+// 		cout << ",";
+// 	}
+// 	cout << endl;
+}
+
+static bool isMonomial(const ideal &I)
+{
+	bool res = TRUE;
+	for(int ii=0;ii<IDELEMS(I);ii++)
+	{
+		if(pLength((poly)I->m[ii])>1)
+		{
+			res = FALSE;
+			break;
+		}
+	}
+	return res;
+}
+		
+/** \brief Set gcone::numFacets */
+inline void gcone::setNumFacets()
+{
+}
+		
+/** \brief Get gcone::numFacets */
+inline int gcone::getNumFacets()
+{
+	return this->numFacets;
+}
+		
+inline int gcone::getUCN()
+{
+	if( this!=NULL)// && ( this!=(gcone * const)0xfbfbfbfbfbfbfbfb && this!=(gcone * const)0xfbfbfbfb ) )
+		return this->UCN;
+	else
+		return -1;
+}
+
+inline int gcone::getPredUCN()
+{
+	return this->pred;
+}
+/** Returns a copy of the this->baseRing */
+inline ring gcone::getBaseRing()
+{
+	return rCopy(this->baseRing);
+}
+
+inline void gcone::setBaseRing(ring r)
+{
+	this->baseRing=rCopy(r);
+}
+
+inline ring gcone::getRef2BaseRing()
+{
+	return this->baseRing;
+}
+
+/** \brief Compute the normals of the cone
+ *
+ * This method computes a representation of the cone in terms of facet normals. It takes an ideal
+ * as its input. Redundancies are automatically removed using cddlib's dd_MatrixCanonicalize.
+ * Other methods for redundancy checkings might be implemented later. See Anders' diss p.44.
+ * Note that in order to use cddlib a 0-th column has to be added to the matrix since cddlib expects 
+ * each row to represent an inequality of type const+x1+...+xn <= 0. While computing the normals we come across
+ * the set \f$ \partial\mathcal{G} \f$ which we might store for later use. C.f p71 of journal
+ * As a result of this procedure the pointer facetPtr points to the first facet of the cone.
+ *
+ * Optionally, if the parameter bool compIntPoint is set to TRUE the method will also compute
+ * an interior point of the cone.
+		 */
+void gcone::getConeNormals(const ideal &I, bool compIntPoint)
+{
+#ifdef gfanp
+	timeval start, end;
+	gettimeofday(&start, 0);
+#endif
+	poly aktpoly;
+	int rows; 			// will contain the dimensions of the ineq matrix - deprecated by
+	dd_rowrange ddrows;
+	dd_colrange ddcols;
+	dd_rowset ddredrows;		// # of redundant rows in ddineq
+	dd_rowset ddlinset;		// the opposite
+	dd_rowindex ddnewpos=NULL;		  // all to make dd_Canonicalize happy
+	dd_NumberType ddnumb=dd_Integer; //Number type
+	dd_ErrorType dderr=dd_NoError;		
+	//Compute the # inequalities i.e. rows of the matrix
+	rows=0; //Initialization
+	for (int ii=0;ii<IDELEMS(I);ii++)
+	{
+// 		aktpoly=(poly)I->m[ii];
+// 		rows=rows+pLength(aktpoly)-1;
+		rows=rows+pLength((poly)I->m[ii])-1;
+	}
+
+	dd_rowrange aktmatrixrow=0;	// needed to store the diffs of the expvects in the rows of ddineq
+	ddrows=rows;
+	ddcols=this->numVars;
+	dd_MatrixPtr ddineq; 		//Matrix to store the inequalities			
+	ddineq=dd_CreateMatrix(ddrows,ddcols+1); //The first col has to be 0 since cddlib checks for additive consts there
+		
+	// We loop through each g\in GB and compute the resulting inequalities
+	for (int i=0; i<IDELEMS(I); i++)
+	{
+		aktpoly=(poly)I->m[i];		//get aktpoly as i-th component of I
+		//simpler version of storing expvect diffs
+		int *leadexpv=(int*)omAlloc(((this->numVars)+1)*sizeof(int));
+		pGetExpV(aktpoly,leadexpv);
+		poly pNextTerm=aktpoly;
+		while(pNext(pNextTerm)/*pNext(aktpoly)*/!=NULL)
+		{
+			pNextTerm/*aktpoly*/=pNext(pNextTerm);
+			int *tailexpv=(int*)omAlloc(((this->numVars)+1)*sizeof(int));
+			pGetExpV(pNextTerm,tailexpv);			
+			for(int kk=1;kk<=this->numVars;kk++)
+			{				
+				dd_set_si(ddineq->matrix[(dd_rowrange)aktmatrixrow][kk],leadexpv[kk]-tailexpv[kk]);
+			}
+			aktmatrixrow += 1;
+			omFree(tailexpv);
+		}		
+		omFree(leadexpv);	
+	} //for
+#if true
+	/*Let's make the preprocessing here. This could already be done in the above for-loop,
+	* but for a start it is more convenient here.
+	* We check the necessary condition of FJT p.18
+	* Quote: [...] every non-zero spoly should have at least one of its terms in inv(G)
+	*/
+// 	ideal initialForm=idInit(IDELEMS(I),1);
+// 	int64vec *gamma=new int64vec(this->numVars);
+	int falseGammaCounter=0;
+	int *redRowsArray=NULL;
+	int num_alloc=0;
+	int num_elts=0;	
+	for(int ii=0;ii<ddineq->rowsize;ii++)
+	{
+		ideal initialForm=idInit(IDELEMS(I),I->rank);
+		//read row ii into gamma
+// 		int64 tmp;
+		int64vec *gamma=new int64vec(this->numVars);
+		for(int jj=1;jj<=this->numVars;jj++)
+		{
+			int64 tmp;
+			tmp=(int64)mpq_get_d(ddineq->matrix[ii][jj]);
+			(*gamma)[jj-1]=(int64)tmp;
+		}
+		computeInv((ideal&)I,initialForm,*gamma);
+		delete gamma;
+		//Create leading ideal
+		ideal L=idInit(IDELEMS(initialForm),1);
+		for(int jj=0;jj<IDELEMS(initialForm);jj++)
+		{
+			poly p=pHead(initialForm->m[jj]);
+			L->m[jj]=pCopy(/*pHead(initialForm->m[jj]))*/p);
+			pDelete(&p);
+		}		
+		
+		LObject *P = new sLObject();//TODO What's the difference between sLObject and LObject?
+		memset(P,0,sizeof(LObject));
+
+		for(int jj=0;jj<=IDELEMS(initialForm)-2;jj++)
+		{
+			bool isMaybeFacet=FALSE;
+			P->p1=initialForm->m[jj];	//build spolys of initialForm in_v
+
+			for(int kk=jj+1;kk<=IDELEMS(initialForm)-1;kk++)
+			{
+				P->p2=initialForm->m[kk];
+				ksCreateSpoly(P);							
+				if(P->p!=NULL)	//spoly non zero=?
+				{	
+					poly p;//NOTE Don't use pInit here. Evil memleak will follow
+					poly q;
+					poly pDel,qDel;
+					p=pCopy(P->p);
+					q=pHead(p);	//Monomial q
+					pDelete(&q);
+					pDel=p; qDel=q;
+					isMaybeFacet=FALSE;
+					//TODO: Suffices to check LTs here
+					while(p!=NULL)
+					{						
+						q=pHead(p);
+						for(int ll=0;ll<IDELEMS(L);ll++)
+						{
+							if(pLmEqual(L->m[ll],q) || pDivisibleBy(L->m[ll],q))
+							{							
+								isMaybeFacet=TRUE;
+ 								break;//for
+							}
+						}
+						pDelete(&q);
+						if(isMaybeFacet==TRUE)
+						{
+							break;//while(p!=NULL)
+						}
+						p=pNext(p);
+					}//while
+// 					pDelete(&p);//NOTE Better to use pDel and qDel. Commenting in this line will not work!
+					if(q!=NULL) pDelete(&q);
+					pDelete(&pDel);
+					pDelete(&qDel);
+					if(isMaybeFacet==FALSE)
+					{
+						dd_set_si(ddineq->matrix[ii][0],1);						
+// 						if(num_alloc==0)
+// 							num_alloc += 1;
+// 						else						
+// 							num_alloc += 1;
+						if(num_alloc==num_elts)	num_alloc==0 ? num_alloc=1 : num_alloc*=2;
+						
+						void *tmp = realloc(redRowsArray,(num_alloc*sizeof(int)));
+						if(!tmp)
+						{
+							WerrorS("Woah dude! Couldn't realloc memory\n");
+							exit(-1);
+						}
+						redRowsArray = (int*)tmp;
+						redRowsArray[num_elts]=ii;
+						num_elts++;
+						//break;//for(int kk, since we have found one that is not in L	
+						goto _start;	//mea culpa, mea culpa, mea maxima culpa
+					}
+				}//if(P->p!=NULL)
+				pDelete(&(P->p));
+			}//for k
+		}//for jj
+		_start:;
+		idDelete(&L);
+		delete P;
+		idDelete(&initialForm);
+	}//for(ii<ddineq-rowsize
+// 	delete gamma;
+	int offset=0;//needed for correction of redRowsArray[ii]
+#ifndef NDEBUG
+	printf("Removed %i of %i in preprocessing step\n",num_elts,ddineq->rowsize);
+#endif
+	for( int ii=0;ii<num_elts;ii++ )
+	{
+		dd_MatrixRowRemove(&ddineq,redRowsArray[ii]+1-offset);//cddlib sucks at enumeration
+		offset++;
+	}	
+	free(redRowsArray);//NOTE May crash on some machines.
+	/*And now for the strictly positive rows
+	* Doesn't gain significant speedup
+	*/
+	/*int *posRowsArray=NULL;
+	num_alloc=0;
+	num_elts=0;
+	for(int ii=0;ii<ddineq->rowsize;ii++)
+	{
+		int64vec *ivPos = new int64vec(this->numVars);
+		for(int jj=0;jj<this->numVars;jj++)
+			(*ivPos)[jj]=(int)mpq_get_d(ddineq->matrix[ii][jj+1]);
+		bool isStrictlyPos=FALSE;
+		int posCtr=0;		
+		for(int jj=0;jj<this->numVars;jj++)
+		{
+			int64vec *ivCanonical = new int64vec(this->numVars);
+			jj==0 ? (*ivCanonical)[ivPos->length()-1]=1 : (*ivCanonical)[jj-1]=1;
+			if(dotProduct(*ivCanonical,*ivPos)!=0)
+			{
+				if ((*ivPos)[jj]>=0)
+				{				
+					posCtr++;				
+				}
+			}			
+			delete ivCanonical;
+		}
+		if(posCtr==ivPos->length())
+			isStrictlyPos=TRUE;
+		if(isStrictlyPos==TRUE)
+		{
+			if(num_alloc==0)
+				num_alloc += 1;
+			else
+				num_alloc += 1;
+			void *tmp = realloc(posRowsArray,(num_alloc*sizeof(int)));
+			if(!tmp)
+			{
+				WerrorS("Woah dude! Couldn't realloc memory\n");
+				exit(-1);
+			}
+			posRowsArray = (int*)tmp;
+			posRowsArray[num_elts]=ii;
+			num_elts++;	
+		}
+		delete ivPos;
+	}
+	offset=0;
+	for(int ii=0;ii<num_elts;ii++)
+	{
+		dd_MatrixRowRemove(&ddineq,posRowsArray[ii]+1-offset);
+		offset++;
+	}
+	free(posRowsArray);*/
+#endif
+
+	dd_MatrixCanonicalize(&ddineq, &ddlinset, &ddredrows, &ddnewpos, &dderr);	
+	ddrows = ddineq->rowsize;	//Size of the matrix with redundancies removed
+	ddcols = ddineq->colsize;
+	
+	this->ddFacets = dd_CopyMatrix(ddineq);
+			
+	/*Write the normals into class facet*/	
+	facet *fAct; 	//pointer to active facet	
+	int numNonFlip=0;
+	for (int kk = 0; kk<ddrows; kk++)
+	{
+		int64 ggT=1;//NOTE Why does (int)mpq_get_d(ddineq->matrix[kk][1]) not work?
+		int64vec *load = new int64vec(this->numVars);//int64vec to store a single facet normal that will then be stored via setFacetNormal
+		for (int jj = 1; jj <ddcols; jj++)
+		{
+			int64 val;
+			val = (int64)mpq_get_d(ddineq->matrix[kk][jj]);
+			(*load)[jj-1] = val;	//store typecasted entry at pos jj-1 of load
+			ggT = int64gcd(ggT,/*(int64&)foo*/val);
+		}//for (int jj = 1; jj <ddcols; jj++)
+		if(ggT>1)
+		{
+			for(int ll=0;ll<this->numVars;ll++)
+				(*load)[ll] /= ggT;//make primitive vector
+		}
+		/*Quick'n'dirty hack for flippability. Executed only if gcone::hasHomInput==FALSE
+		* Otherwise every facet intersects the positive orthant
+		*/	
+		if(gcone::hasHomInput==FALSE)
+		{
+			//TODO: No dP needed
+			bool isFlip=FALSE;
+			for(int jj = 0; jj<load->length(); jj++)
+			{
+// 				int64vec *ivCanonical = new int64vec(load->length());
+// 				(*ivCanonical)[jj]=1;
+// 				if (dotProduct(*load,*ivCanonical)<0)	
+// 				{
+// 					isFlip=TRUE;
+// 					break;	//URGHS
+// 				}
+// 				delete ivCanonical;
+				if((*load)[jj]<0)
+				{
+					isFlip=TRUE;
+					break;
+				}				
+			}/*End of check for flippability*/
+// 			if(iv64isStrictlyPositive(load))
+// 				isFlip=TRUE;
+			if(isFlip==FALSE)
+			{
+				this->numFacets++;
+				numNonFlip++;
+				if(this->numFacets==1)
+				{
+					facet *fRoot = new facet();
+					this->facetPtr = fRoot;
+					fAct = fRoot;							
+				}
+				else
+				{
+					fAct->next = new facet();
+					fAct = fAct->next;
+				}
+				fAct->isFlippable=FALSE;
+				fAct->setFacetNormal(load);
+				fAct->setUCN(this->getUCN());
+#ifndef NDEBUG
+				printf("Marking facet (");load->show(1,0);printf(") as non flippable\n");		
+#endif
+			}
+			else
+			{
+				this->numFacets++;
+				if(this->numFacets==1)
+				{
+					facet *fRoot = new facet();
+					this->facetPtr = fRoot;
+					fAct = fRoot;
+				}
+				else
+				{
+					fAct->next = new facet();
+					fAct = fAct->next;
+				}
+				fAct->isFlippable=TRUE;
+				fAct->setFacetNormal(load);
+				fAct->setUCN(this->getUCN());					
+			}
+		}//hasHomInput==FALSE
+		else	//Every facet is flippable
+		{	/*Now load should be full and we can call setFacetNormal*/					
+			this->numFacets++;
+			if(this->numFacets==1)
+			{
+				facet *fRoot = new facet();
+				this->facetPtr = fRoot;
+				fAct = fRoot;
+			}
+			else
+			{
+				fAct->next = new facet();
+				fAct = fAct->next;
+			}
+			fAct->isFlippable=TRUE;
+			fAct->setFacetNormal(load);
+			fAct->setUCN(this->getUCN());					
+		}//if (isFlippable==FALSE)
+		delete load;				
+	}//for (int kk = 0; kk<ddrows; kk++)
+			
+	//In cases like I=<x-1,y-1> there are only non-flippable facets...
+	if(numNonFlip==this->numFacets)
+	{
+		WerrorS ("Only non-flippable facets. Terminating...\n");
+// 		exit(-1);//Bit harsh maybe...
+	}
+			
+	/*
+	Now we should have a linked list containing the facet normals of those facets that are
+	-irredundant
+	-flipable
+	Adressing is done via *facetPtr
+	*/			
+	if (compIntPoint==TRUE)
+	{
+		int64vec *iv = new int64vec(this->numVars);
+		dd_MatrixPtr posRestr=dd_CreateMatrix(this->numVars,this->numVars+1);
+		int jj=1;
+		for (int ii=0;ii<=this->numVars;ii++)
+		{
+			dd_set_si(posRestr->matrix[ii][jj],1);
+			jj++;							
+		}
+		dd_MatrixAppendTo(&ddineq,posRestr);
+		interiorPoint(ddineq, *iv);	//NOTE ddineq contains non-flippable facets
+		this->setIntPoint(iv);	//stores the interior point in gcone::ivIntPt
+		delete iv;
+		dd_FreeMatrix(posRestr);
+	}	
+	//Clean up but don't delete the return value!	
+	//dd_FreeMatrix(ddineq);	
+	set_free(ddredrows);//check
+	set_free(ddlinset);//check
+	//free(ddnewpos);//<-- NOTE Here the crash occurs omAlloc issue?
+#ifdef gfanp
+	gettimeofday(&end, 0);
+	time_getConeNormals += (end.tv_sec - start.tv_sec + 1e-6*(end.tv_usec - start.tv_usec));
+#endif
+
+}//gcone::getConeNormals(ideal I)
+		
+/** \brief Compute the (codim-2)-facets of a given cone
+ * This method is used during noRevS
+ * Additionally we check whether the codim2-facet normal is strictly positive. Otherwise
+ * the facet is marked as non-flippable.
+ */
+void gcone::getCodim2Normals(const gcone &gc)
+{
+#ifdef gfanp
+	timeval start, end;
+  	gettimeofday(&start, 0);
+#endif
+	//this->facetPtr->codim2Ptr = new facet(2);	//instantiate a (codim-2)-facet
+	facet *fAct;
+	fAct = this->facetPtr;		
+	facet *codim2Act;
+	//codim2Act = this->facetPtr->codim2Ptr;
+	dd_MatrixPtr ddineq;//,P,ddakt;
+	dd_ErrorType err;
+	//ddineq = facets2Matrix(gc);	//get a matrix representation of the cone
+	ddineq = dd_CopyMatrix(gc.ddFacets);
+	/*Now set appropriate linearity*/
+	for (int ii=0; ii<this->numFacets; ii++)			
+	{	
+		dd_rowset impl_linset, redset;
+		dd_rowindex newpos;
+		dd_MatrixPtr ddakt;
+  		ddakt = dd_CopyMatrix(ddineq);
+// 		ddakt->representation=dd_Inequality;	//Not using this makes it faster. But why does the quick check below still work?
+// 		ddakt->representation=dd_Generator;
+		set_addelem(ddakt->linset,ii+1);/*Now set appropriate linearity*/
+#ifdef gfanp
+		timeval t_ddMC_start, t_ddMC_end;
+		gettimeofday(&t_ddMC_start,0);
+#endif				
+ 		//dd_MatrixCanonicalize(&ddakt, &impl_linset, &redset, &newpos, &err);
+		dd_PolyhedraPtr ddpolyh;
+		ddpolyh=dd_DDMatrix2Poly(ddakt, &err);
+// 		ddpolyh=dd_DDMatrix2Poly2(ddakt, dd_MaxCutoff, &err);
+		dd_MatrixPtr P;
+		P=dd_CopyGenerators(ddpolyh);		
+		dd_FreePolyhedra(ddpolyh);
+		//TODO Call for one cone , normalize - check equalities - plus lineality -done
+#ifdef gfanp
+		gettimeofday(&t_ddMC_end,0);
+		t_ddMC += (t_ddMC_end.tv_sec - t_ddMC_start.tv_sec + 1e-6*(t_ddMC_end.tv_usec - t_ddMC_start.tv_usec));
+#endif	
+		/* We loop through each row of P normalize it by making all
+		* entries integer ones and add the resulting vector to the
+		* int matrix facet::codim2Facets */
+		for (int jj=1;jj<=/*ddakt*/P->rowsize;jj++)
+		{					
+			fAct->numCodim2Facets++;
+			if(fAct->numCodim2Facets==1)					
+			{						
+				fAct->codim2Ptr = new facet(2);						
+				codim2Act = fAct->codim2Ptr;
+			}
+			else
+			{
+				codim2Act->next = new facet(2);
+				codim2Act = codim2Act->next;
+			}
+			int64vec *n = new int64vec(this->numVars);
+#ifdef gfanp
+			timeval t_mI_start, t_mI_end;
+			gettimeofday(&t_mI_start,0);
+#endif
+			makeInt(P,jj,*n);
+			/*for(int kk=0;kk<this->numVars;kk++)
+			{
+				int foo;
+				foo = (int)mpq_get_d(ddakt->matrix[ii][kk+1]);
+				(*n)[kk]=foo;
+			}*/
+#ifdef gfanp
+			gettimeofday(&t_mI_end,0);
+			t_mI += (t_mI_end.tv_sec - t_mI_start.tv_sec + 1e-6*(t_mI_end.tv_usec - t_mI_start.tv_usec));
+#endif
+			codim2Act->setFacetNormal(n);
+			delete n;					
+		}		
+		/*We check whether the facet spanned by the codim-2 facets
+		* intersects with the positive orthant. Otherwise we define this
+		* facet to be non-flippable. Works since we set the appropriate 
+		* linearity for ddakt above.
+		*/
+		//TODO It might be faster to compute jus the implied equations instead of a relative interior point
+// 		int64vec *iv_intPoint = new int64vec(this->numVars);
+// 		dd_MatrixPtr shiftMatrix;
+// 		dd_MatrixPtr intPointMatrix;
+// 		shiftMatrix = dd_CreateMatrix(this->numVars,this->numVars+1);
+// 		for(int kk=0;kk<this->numVars;kk++)
+// 		{
+// 			dd_set_si(shiftMatrix->matrix[kk][0],1);
+// 			dd_set_si(shiftMatrix->matrix[kk][kk+1],1);
+// 		}
+// 		intPointMatrix=dd_MatrixAppend(ddakt,shiftMatrix);
+// #ifdef gfanp
+// 		timeval t_iP_start, t_iP_end;
+// 		gettimeofday(&t_iP_start, 0);
+// #endif		
+// 		interiorPoint(intPointMatrix,*iv_intPoint);
+// // 		dd_rowset impl_linste,lbasis;
+// // 		dd_LPSolutionPtr lps=NULL;
+// // 		dd_ErrorType err;
+// // 		dd_FindRelativeInterior(intPointMatrix, &impl_linset, &lbasis, &lps, &err);
+// #ifdef gfanp
+// 		gettimeofday(&t_iP_end, 0);
+// 		t_iP += (t_iP_end.tv_sec - t_iP_start.tv_sec + 1e-6*(t_iP_end.tv_usec - t_iP_start.tv_usec));
+// #endif
+// 		for(int ll=0;ll<this->numVars;ll++)
+// 		{
+// 			if( (*iv_intPoint)[ll] < 0 )
+// 			{
+// 				fAct->isFlippable=FALSE;
+// 				break;
+// 			}
+// 		}
+		/*End of check*/
+		/*This test should be way less time consuming*/
+#ifdef gfanp
+		timeval t_iP_start, t_iP_end;
+		gettimeofday(&t_iP_start, 0);
+#endif
+		bool containsStrictlyPosRay=TRUE;
+		for(int ii=0;ii<ddakt->rowsize;ii++)
+		{
+			containsStrictlyPosRay=TRUE;
+			for(int jj=1;jj<this->numVars;jj++)
+			{
+				if(ddakt->matrix[ii][jj]<=0)
+				{
+					containsStrictlyPosRay=FALSE;
+					break;
+				}
+			}
+			if(containsStrictlyPosRay==TRUE)
+				break;
+		}
+		if(containsStrictlyPosRay==FALSE)
+		//TODO Not sufficient. Intersect with pos orthant for pos int
+			fAct->isFlippable=FALSE;
+#ifdef gfanp
+		gettimeofday(&t_iP_end, 0);
+		t_iP += (t_iP_end.tv_sec - t_iP_start.tv_sec + 1e-6*(t_iP_end.tv_usec - t_iP_start.tv_usec));
+#endif
+		/**/
+		fAct = fAct->next;	
+		dd_FreeMatrix(ddakt);
+		dd_FreeMatrix(P);
+	}//for 	
+	dd_FreeMatrix(ddineq);
+#ifdef gfanp
+	gettimeofday(&end, 0);
+	time_getCodim2Normals += (end.tv_sec - start.tv_sec + 1e-6*(end.tv_usec - start.tv_usec));
+#endif
+}
+		
+/** Really extremal rays this time ;)
+* Extremal rays are unique modulo the homogeneity space.
+* Therefore we dd_MatrixAppend gc->ddFacets and gcone::dd_LinealitySpace
+* into ddineq. Next we compute the extremal rays of the so given subspace.
+* Figuring out whether a ray belongs to a given facet(normal) is done by
+* checking whether the inner product of the ray with the normal is zero.
+* We use ivAdd here which returns a new int64vec. Therefore we need to avoid
+* a memory leak which would be cause by the line 
+* iv=ivAdd(iv,b)
+* So we keep pointer tmp to iv and delete(tmp), so there should not occur a 
+* memleak
+* TODO normalization
+*/
+void gcone::getExtremalRays(const gcone &gc)
+{
+#ifdef gfanp
+	timeval start, end;
+	gettimeofday(&start, 0);
+	timeval poly_start, poly_end;
+	gettimeofday(&poly_start,0);
+#endif
+	//Add lineality space - dd_LinealitySpace
+	dd_MatrixPtr ddineq;
+	dd_ErrorType err;	
+	ddineq = (dd_LinealitySpace->rowsize>0) ? dd_AppendMatrix(gc.ddFacets,gcone::dd_LinealitySpace) : dd_CopyMatrix(gc.ddFacets);
+	/* In case the input is non-homogeneous we add constrains for the positive orthant.
+	* This is justified by the fact that for non-homog ideals we only consider the 
+	* restricted fan. This way we can be sure to find strictly positive interior points.
+	* This in turn makes life easy when checking for flippability!
+	* Drawback: Makes the LP larger so probably slows down computations a wee bit.
+	*/
+	dd_MatrixPtr ddPosRestr;
+	if(hasHomInput==FALSE)
+	{
+		dd_MatrixPtr tmp;
+		ddPosRestr=dd_CreateMatrix(this->numVars,this->numVars+1);
+		for(int ii=0;ii<this->numVars;ii++)
+			dd_set_si(ddPosRestr->matrix[ii][ii+1],1);
+		dd_MatrixAppendTo(&ddineq,ddPosRestr);
+		assert(ddineq);
+		dd_FreeMatrix(ddPosRestr);
+	}	
+	dd_PolyhedraPtr ddPolyh;
+	ddPolyh = dd_DDMatrix2Poly(ddineq, &err);
+	dd_MatrixPtr P;
+	P=dd_CopyGenerators(ddPolyh);//Here we actually compute the rays!
+	dd_FreePolyhedra(ddPolyh);
+	dd_FreeMatrix(ddineq);
+#ifdef gfanp
+	gettimeofday(&poly_end,0);
+	t_ddPolyh += (poly_end.tv_sec - poly_start.tv_sec + 1e-6*(poly_end.tv_usec - poly_start.tv_usec));
+#endif
+	/* Compute interior point on the fly*/
+	int64vec *ivIntPointOfCone = new int64vec(this->numVars);
+	int64vec *foo = new int64vec(this->numVars);
+	for(int ii=0;ii<P->rowsize;ii++)
+	{
+		int64vec *tmp = ivIntPointOfCone;
+		makeInt(P,ii+1,*foo);
+		ivIntPointOfCone = iv64Add(ivIntPointOfCone,foo);
+		delete tmp;
+	}
+	delete foo;
+	int64 ggT=(*ivIntPointOfCone)[0];
+	for (int ii=0;ii<(this->numVars);ii++)
+	{
+		if( (*ivIntPointOfCone)[ii]>INT_MAX ) 
+			WarnS("Interior point exceeds INT_MAX!\n");
+		//Compute intgcd
+		ggT=int64gcd(ggT,(*ivIntPointOfCone)[ii]);
+	}
+	
+	//Divide out a common gcd > 1
+	if(ggT>1)
+	{
+		for(int ii=0;ii<this->numVars;ii++)
+		{
+			(*ivIntPointOfCone)[ii] /= ggT;
+			if( (*ivIntPointOfCone)[ii]>INT_MAX ) WarnS("Interior point still exceeds INT_MAX after GCD!\n");
+		}
+	}
+
+	/*For homogeneous input (like Det3,3,5) the int points may be negative. So add a suitable multiple of (1,_,1)*/
+	if(hasHomInput==TRUE && iv64isStrictlyPositive(ivIntPointOfCone)==FALSE)
+	{
+		int64vec *ivOne = new int64vec(this->numVars);
+		int maxNegEntry=0;
+		for(int ii=0;ii<this->numVars;ii++)
+		{
+// 			(*ivOne)[ii]=1;
+			if ((*ivIntPointOfCone)[ii]<maxNegEntry) maxNegEntry=(*ivIntPointOfCone)[ii];
+		}
+		maxNegEntry *= -1;
+		maxNegEntry++;//To be on the safe side
+		for(int ii=0;ii<this->numVars;ii++)
+			(*ivOne)[ii]=maxNegEntry;
+		int64vec *tmp=ivIntPointOfCone;
+		ivIntPointOfCone=iv64Add(ivIntPointOfCone,ivOne);
+		delete(tmp);
+// 		while( !iv64isStrictlyPositive(ivIntPointOfCone) )
+// 		{
+// 			int64vec *tmp = ivIntPointOfCone;
+// 			for(int jj=0;jj<this->numVars;jj++)
+// 				(*ivOne)[jj] = (*ivOne)[jj] << 1; //times 2
+// 			ivIntPointOfCone = ivAdd(ivIntPointOfCone,ivOne);
+// 			delete tmp;				
+// 		}
+		delete ivOne;
+		int64 ggT=(*ivIntPointOfCone)[0];
+		for(int ii=0;ii<this->numVars;ii++)
+			ggT=int64gcd( ggT, (*ivIntPointOfCone)[ii]);
+		if(ggT>1)
+		{
+			for(int jj=0;jj<this->numVars;jj++)
+				(*ivIntPointOfCone)[jj] /= ggT;
+		}
+	}
+// 	assert(iv64isStrictlyPositive(ivIntPointOfCone));
+	
+	this->setIntPoint(ivIntPointOfCone);
+	delete(ivIntPointOfCone);
+	/* end of interior point computation*/
+	
+	//Loop through the rows of P and check whether fNormal*row[i]=0 => row[i] belongs to fNormal
+	int rows=P->rowsize;
+	facet *fAct=gc.facetPtr;
+	//Construct an array to hold the extremal rays of the cone
+	this->gcRays = (int64vec**)omAlloc0(sizeof(int64vec*)*P->rowsize);	
+	for(int ii=0;ii<P->rowsize;ii++)
+	{
+		int64vec *rowvec = new int64vec(this->numVars);
+		makeInt(P,ii+1,*rowvec);//get an integer entry instead of rational, rowvec is primitve
+		this->gcRays[ii] = iv64Copy(rowvec);
+		delete rowvec;
+	}	
+	this->numRays=P->rowsize;
+	//Check which rays belong to which facet
+	while(fAct!=NULL)
+	{
+		const int64vec *fNormal;// = new int64vec(this->numVars);
+		fNormal = fAct->getRef2FacetNormal();//->getFacetNormal();
+		int64vec *ivIntPointOfFacet = new int64vec(this->numVars);
+		for(int ii=0;ii<rows;ii++)
+		{			
+ 			if(dotProduct(*fNormal,this->gcRays[ii])==0)
+			{
+				int64vec *tmp = ivIntPointOfFacet;//Prevent memleak
+				fAct->numCodim2Facets++;
+				facet *codim2Act;
+				if(fAct->numCodim2Facets==1)					
+				{						
+					fAct->codim2Ptr = new facet(2);						
+					codim2Act = fAct->codim2Ptr;
+				}
+				else
+				{
+					codim2Act->next = new facet(2);
+					codim2Act = codim2Act->next;
+				}
+				//codim2Act->setFacetNormal(rowvec);
+				//Rather just let codim2Act point to the corresponding int64vec of gcRays
+				codim2Act->fNormal=this->gcRays[ii];
+				fAct->numRays++;				 
+				//Memleak avoided via tmp
+				ivIntPointOfFacet=iv64Add(ivIntPointOfFacet,this->gcRays[ii]);
+				//Now tmp still points to the OLD address of ivIntPointOfFacet
+				delete(tmp);
+					
+			}
+		}//For non-homog input ivIntPointOfFacet should already be >0 here
+// 		if(!hasHomInput) {assert(iv64isStrictlyPositive(ivIntPointOfFacet));}
+		//if we have no strictly pos ray but the input is homogeneous
+		//then add a suitable multiple of (1,...,1)
+		if( !iv64isStrictlyPositive(ivIntPointOfFacet) && hasHomInput==TRUE)
+		{
+			int64vec *ivOne = new int64vec(this->numVars);
+			for(int ii=0;ii<this->numVars;ii++)
+				(*ivOne)[ii]=1;
+			while( !iv64isStrictlyPositive(ivIntPointOfFacet) )
+			{
+				int64vec *tmp = ivIntPointOfFacet;
+				for(int jj=0;jj<this->numVars;jj++)
+				{
+					(*ivOne)[jj] = (*ivOne)[jj] << 1; //times 2
+				}
+				ivIntPointOfFacet = iv64Add(ivIntPointOfFacet/*diff*/,ivOne);
+				delete tmp;				
+			}
+			delete ivOne;
+		}
+		int64 ggT=(*ivIntPointOfFacet)[0];
+		for(int ii=0;ii<this->numVars;ii++)
+			ggT=int64gcd(ggT,(*ivIntPointOfFacet)[ii]);
+		if(ggT>1)
+		{
+			for(int ii=0;ii<this->numVars;ii++)
+				(*ivIntPointOfFacet)[ii] /= ggT;
+		}			
+		fAct->setInteriorPoint(ivIntPointOfFacet);
+		
+		delete(ivIntPointOfFacet);
+		//Now (if we have at least 3 variables) do a bubblesort on the rays
+		/*if(this->numVars>2)
+		{
+			facet *A[fAct->numRays-1];
+			facet *f2Act=fAct->codim2Ptr;
+			for(unsigned ii=0;ii<fAct->numRays;ii++)
+			{
+				A[ii]=f2Act;
+				f2Act=f2Act->next;
+			}
+			bool exchanged=FALSE;
+			unsigned n=fAct->numRays-1;
+			do
+			{
+				exchanged=FALSE;//n=fAct->numRays-1;				
+				for(unsigned ii=0;ii<=n-1;ii++)
+				{					
+					if((A[ii]->fNormal)->compare((A[ii+1]->fNormal))==1)
+					{
+						//Swap rays
+						cout << "Swapping ";
+						A[ii]->fNormal->show(1,0); cout << " with "; A[ii+1]->fNormal->show(1,0); cout << endl;
+						A[ii]->next=A[ii+1]->next;
+						if(ii>0)
+							A[ii-1]->next=A[ii+1];
+						A[ii+1]->next=A[ii];
+						if(ii==0)
+							fAct->codim2Ptr=A[ii+1];
+						//end swap
+						facet *tmp=A[ii];//swap in list
+						A[ii+1]=A[ii];
+						A[ii]=tmp;
+// 						tmp=NULL;			
+					}					
+				}
+				n--;			
+			}while(exchanged==TRUE && n>=0);
+		}*///if pVariables>2
+// 		delete fNormal;		
+		fAct = fAct->next;
+	}//end of facet checking
+	dd_FreeMatrix(P);
+	//Now all extremal rays should be set w.r.t their respective fNormal
+	//TODO Not sufficient -> vol2 II/125&127
+	//NOTE Sufficient according to cddlibs doc. These ARE rays
+	//What the hell... let's just take interior points
+	if(gcone::hasHomInput==FALSE)
+	{
+		fAct=gc.facetPtr;
+		while(fAct!=NULL)
+		{
+// 			bool containsStrictlyPosRay=FALSE;
+// 			facet *codim2Act;
+// 			codim2Act = fAct->codim2Ptr;
+// 			while(codim2Act!=NULL)
+// 			{
+// 				int64vec *rayvec;
+// 				rayvec = codim2Act->getFacetNormal();//Mind this is no normal but a ray!
+// 				//int negCtr=0;
+// 				if(iv64isStrictlyPositive(rayvec))
+// 				{
+// 					containsStrictlyPosRay=TRUE;
+// 					delete(rayvec);
+// 					break;
+// 				}				
+// 				delete(rayvec);
+// 				codim2Act = codim2Act->next;
+// 			}
+// 			if(containsStrictlyPosRay==FALSE)
+// 				fAct->isFlippable=FALSE;
+			if(!iv64isStrictlyPositive(fAct->interiorPoint))
+				fAct->isFlippable=FALSE;
+			fAct = fAct->next;
+		}
+	}//hasHomInput?	
+#ifdef gfanp
+	gettimeofday(&end, 0);
+	t_getExtremalRays += (end.tv_sec - start.tv_sec + 1e-6*(end.tv_usec - start.tv_usec));
+#endif	
+}
+
+/** Order the spanning rays in a lex way hopefully using qsort()*/
+void gcone::orderRays()
+{
+//   qsort(gcRays,sizeof(int64vec),int64vec::compare);
+}
+	
+inline bool gcone::iv64isStrictlyPositive(const int64vec * iv64)
+{
+	bool res=TRUE;
+	for(int ii=0;ii<iv64->length();ii++)
+	{
+		if((*iv64)[ii]<=0)
+		{
+			res=FALSE;
+			break;
+		}		
+	}
+	return res;
+}
+
+/** \brief Compute the Groebner Basis on the other side of a shared facet 
+ *
+ * Implements algorithm 4.3.2 from Anders' thesis.
+ * As shown there it is not necessary to compute an interior point. The knowledge of the facet normal
+ * suffices. A term \f$ x^\gamma \f$ of \f$ g \f$ is in \f$  in_\omega(g) \f$ iff \f$ \gamma - leadexp(g)\f$
+ * is parallel to \f$ leadexp(g) \f$
+ * Parallelity is checked using basic linear algebra. See gcone::isParallel.
+ * Other possibilities include computing the rank of the matrix consisting of the vectors in question and
+ * computing an interior point of the facet and taking all terms having the same weight with respect 
+ * to this interior point.
+ *\param ideal, facet
+ * Input: a marked,reduced Groebner basis and a facet
+ */
+inline void gcone::flip(ideal gb, facet *f)		//Compute "the other side"
+{	
+#ifdef gfanp
+	timeval start, end;
+	gettimeofday(&start, 0);
+#endif		
+	int64vec *fNormal;// = new int64vec(this->numVars);	//facet normal, check for parallelity			
+	fNormal = f->getFacetNormal();	//read this->fNormal;
+#ifndef NDEBUG
+// 	std::cout << "running gcone::flip" << std::endl;
+	printf("flipping UCN %i over facet",this->getUCN());
+	fNormal->show(1,0);
+	printf(") with UCN %i\n",f->getUCN() );	
+#endif
+	if(this->getUCN() != f->getUCN())
+	{
+		WerrorS("Uh oh... Trying to flip over facet with incompatible UCN");
+		exit(-1);
+	}
+	/*1st step: Compute the initial ideal*/
+	/*poly initialFormElement[IDELEMS(gb)];*/	//array of #polys in GB to store initial form
+	ideal initialForm=idInit(IDELEMS(gb),this->gcBasis->rank);
+	
+	computeInv(gb,initialForm,*fNormal);
+
+#ifndef NDEBUG
+/*	cout << "Initial ideal is: " << endl;
+	idShow(initialForm);
+	//f->printFlipGB();*/
+// 	cout << "===" << endl;
+#endif			
+	/*2nd step: lift initial ideal to a GB of the neighbouring cone using minus alpha as weight*/
+	/*Substep 2.1
+	compute $G_{-\alpha}(in_v(I)) 
+	see journal p. 66
+	NOTE Check for different rings. Prolly it will not always be necessary to add a weight, if the
+	srcRing already has a weighted ordering
+	*/
+	ring srcRing=currRing;
+	ring tmpRing;
+			
+	if( (srcRing->order[0]!=ringorder_a))
+	{
+		int64vec *iv;// = new int64vec(this->numVars);
+		iv = ivNeg(fNormal);//ivNeg uses iv64Copy -> new
+// 		tmpRing=rCopyAndAddWeight(srcRing,ivNeg(fNormal));
+		tmpRing=rCopyAndAddWeight(srcRing,iv);
+		delete iv;
+	}
+	else
+	{
+		tmpRing=rCopy0(srcRing);
+		int length=fNormal->length();
+		int *A=(int *)omAlloc0(length*sizeof(int));
+		for(int jj=0;jj<length;jj++)
+		{
+			A[jj]=-(*fNormal)[jj];
+		}
+		omFree(tmpRing->wvhdl[0]);
+		tmpRing->wvhdl[0]=(int*)A;
+		tmpRing->block1[0]=length;
+		rComplete(tmpRing);
+		//omFree(A);
+	}
+  	delete fNormal; 
+	rChangeCurrRing(tmpRing);	
+			
+	ideal ina;			
+	ina=idrCopyR(initialForm,srcRing);
+	idDelete(&initialForm);
+	ideal H;
+//  	H=kStd(ina,NULL,isHomog,NULL);	//we know it is homogeneous
+#ifdef gfanp
+	timeval t_kStd_start, t_kStd_end;
+	gettimeofday(&t_kStd_start,0);
+#endif
+	if(gcone::hasHomInput==TRUE)
+		H=kStd(ina,NULL,isHomog,NULL/*,gcone::hilbertFunction*/);
+	else
+		H=kStd(ina,NULL,isNotHomog,NULL);	//This is \mathcal(G)_{>_-\alpha}(in_v(I))
+#ifdef gfanp
+	gettimeofday(&t_kStd_end, 0);
+	t_kStd += (t_kStd_end.tv_sec - t_kStd_start.tv_sec + 1e-6*(t_kStd_end.tv_usec - t_kStd_start.tv_usec));
+#endif
+	idSkipZeroes(H);
+	idDelete(&ina);
+
+	/*Substep 2.2
+	do the lifting and mark according to H
+	*/
+	rChangeCurrRing(srcRing);
+	ideal srcRing_H;
+	ideal srcRing_HH;			
+	srcRing_H=idrCopyR(H,tmpRing);
+	//H is needed further below, so don't idDelete here
+ 	srcRing_HH=ffG(srcRing_H,this->gcBasis);
+ 	idDelete(&srcRing_H);
+		
+	/*Substep 2.2.1
+	 * Mark according to G_-\alpha
+	 * Here we have a minimal basis srcRing_HH. In order to turn this basis into a reduced basis
+	 * we have to compute an interior point of C(srcRing_HH). For this we need to know the cone
+	 * represented by srcRing_HH MARKED ACCORDING TO G_{-\alpha}
+	 * Thus we check whether the leading monomials of srcRing_HH and srcRing_H coincide. If not we 
+	 * compute the difference accordingly
+	*/
+#ifdef gfanp
+	timeval t_markings_start, t_markings_end;
+	gettimeofday(&t_markings_start, 0);
+#endif		
+	bool markingsAreCorrect=FALSE;
+	dd_MatrixPtr intPointMatrix;
+	int iPMatrixRows=0;
+	dd_rowrange aktrow=0;			
+	for (int ii=0;ii<IDELEMS(srcRing_HH);ii++)
+	{
+		poly aktpoly=(poly)srcRing_HH->m[ii];//This is a pointer, so don't pDelete
+		iPMatrixRows = iPMatrixRows+pLength(aktpoly);		
+	}
+	/* additionally one row for the standard-simplex and another for a row that becomes 0 during
+	 * construction of the differences
+	 */
+	intPointMatrix = dd_CreateMatrix(iPMatrixRows+2,this->numVars+1); 
+	intPointMatrix->numbtype=dd_Integer;	//NOTE: DO NOT REMOVE OR CHANGE TO dd_Rational
+	
+	for (int ii=0;ii<IDELEMS(srcRing_HH);ii++)
+	{
+		markingsAreCorrect=FALSE;	//crucial to initialise here
+		poly aktpoly=srcRing_HH->m[ii]; //Only a pointer, so don't pDelete
+		/*Comparison of leading monomials is done via exponent vectors*/
+		for (int jj=0;jj<IDELEMS(H);jj++)
+		{
+			int *src_ExpV = (int *)omAlloc((this->numVars+1)*sizeof(int));
+			int *dst_ExpV = (int *)omAlloc((this->numVars+1)*sizeof(int));
+			pGetExpV(aktpoly,src_ExpV);
+			rChangeCurrRing(tmpRing);	//this ring change is crucial!
+			poly p=pCopy(H->m[ii]);
+			pGetExpV(p/*pCopy(H->m[ii])*/,dst_ExpV);
+			pDelete(&p);
+			rChangeCurrRing(srcRing);
+			bool expVAreEqual=TRUE;
+			for (int kk=1;kk<=this->numVars;kk++)
+			{
+#ifndef NDEBUG
+// 				cout << src_ExpV[kk] << "," << dst_ExpV[kk] << endl;
+#endif
+				if (src_ExpV[kk]!=dst_ExpV[kk])
+				{
+					expVAreEqual=FALSE;
+				}
+			}								
+			if (expVAreEqual==TRUE)
+			{
+				markingsAreCorrect=TRUE; //everything is fine
+#ifndef NDEBUG
+// 				cout << "correct markings" << endl;
+#endif
+			}//if (pHead(aktpoly)==pHead(H->m[jj])
+			omFree(src_ExpV);
+			omFree(dst_ExpV);
+		}//for (int jj=0;jj<IDELEMS(H);jj++)
+		
+		int *leadExpV=(int *)omAlloc((this->numVars+1)*sizeof(int));
+		if (markingsAreCorrect==TRUE)
+		{
+			pGetExpV(aktpoly,leadExpV);
+		}
+		else
+		{
+			rChangeCurrRing(tmpRing);
+			pGetExpV(pHead(H->m[ii]),leadExpV); //We use H->m[ii] as leading monomial
+			rChangeCurrRing(srcRing);
+		}
+		/*compute differences of the expvects*/				
+		while (pNext(aktpoly)!=NULL)
+		{
+			int *v=(int *)omAlloc((this->numVars+1)*sizeof(int));
+			/*The following if-else-block makes sure the first term (i.e. the wrongly marked term) 
+			is not omitted when computing the differences*/
+			if(markingsAreCorrect==TRUE)
+			{
+				aktpoly=pNext(aktpoly);
+				pGetExpV(aktpoly,v);
+			}
+			else
+			{
+				pGetExpV(pHead(aktpoly),v);
+				markingsAreCorrect=TRUE;
+			}
+			int ctr=0;
+			for (int jj=0;jj<this->numVars;jj++)
+			{				
+				/*Store into ddMatrix*/				
+				if(leadExpV[jj+1]-v[jj+1])
+					ctr++;
+				dd_set_si(intPointMatrix->matrix[aktrow][jj+1],leadExpV[jj+1]-v[jj+1]);
+			}
+			/*It ought to be more sensible to avoid 0-rows in the first place*/
+// 			if(ctr==this->numVars)//We have a 0-row
+// 				dd_MatrixRowRemove(&intPointMatrix,aktrow);
+// 			else
+				aktrow +=1;
+			omFree(v);
+		}
+		omFree(leadExpV);
+	}//for (int ii=0;ii<IDELEMS(srcRing_HH);ii++)
+#ifdef gfanp
+	gettimeofday(&t_markings_end, 0);
+	t_markings += (t_markings_end.tv_sec - t_markings_start.tv_sec + 1e-6*(t_markings_end.tv_usec - t_markings_start.tv_usec));
+#endif
+	/*Now it is safe to idDelete(H)*/
+	idDelete(&H);
+	/*Preprocessing goes here since otherwise we would delete the constraint
+	* for the standard simplex.
+	*/
+	preprocessInequalities(intPointMatrix);
+	/*Now we add the constraint for the standard simplex*/
+// 	dd_set_si(intPointMatrix->matrix[aktrow][0],-1);
+// 	for (int jj=1;jj<=this->numVars;jj++)
+// 	{
+// 		dd_set_si(intPointMatrix->matrix[aktrow][jj],1);
+// 	}
+	//Let's make sure we compute interior points from the positive orthant
+// 	dd_MatrixPtr posRestr=dd_CreateMatrix(this->numVars,this->numVars+1);
+// 	
+// 	int jj=1;
+// 	for (int ii=0;ii<this->numVars;ii++)
+// 	{
+// 		dd_set_si(posRestr->matrix[ii][jj],1);
+// 		jj++;							
+// 	}
+	/*We create a matrix containing the standard simplex
+	* and constraints to assure a strictly positive point
+	* is computed */
+	dd_MatrixPtr posRestr = dd_CreateMatrix(this->numVars+1, this->numVars+1);
+	for(int ii=0;ii<posRestr->rowsize;ii++)
+	{
+		if(ii==0)
+		{
+			dd_set_si(posRestr->matrix[ii][0],-1);
+			for(int jj=1;jj<=this->numVars;jj++)			
+				dd_set_si(posRestr->matrix[ii][jj],1);			
+		}
+		else
+		{
+			/** Set all variables to \geq 1/10. YMMV but this choice is pretty equal*/
+			dd_set_si2(posRestr->matrix[ii][0],-1,2);
+			dd_set_si(posRestr->matrix[ii][ii],1);
+		}
+	}
+	dd_MatrixAppendTo(&intPointMatrix,posRestr);
+	dd_FreeMatrix(posRestr);
+
+	int64vec *iv_weight = new int64vec(this->numVars);
+#ifdef gfanp
+	timeval t_dd_start, t_dd_end;
+	gettimeofday(&t_dd_start, 0);
+#endif
+	dd_ErrorType err;
+	dd_rowset implLin, redrows;
+	dd_rowindex newpos;
+
+	//NOTE Here we should remove interiorPoint and instead
+	// create and ordering like (a(omega),a(fNormal),dp)
+// 	if(this->ivIntPt==NULL)
+		interiorPoint(intPointMatrix, *iv_weight);	//iv_weight now contains the interior point
+// 	else
+// 		iv_weight=this->getIntPoint();
+	dd_FreeMatrix(intPointMatrix);
+	/*Crude attempt for interior point */
+	/*dd_PolyhedraPtr ddpolyh;
+	dd_ErrorType err;
+	dd_rowset impl_linset,redset;
+	dd_rowindex newpos;
+	dd_MatrixCanonicalize(&intPointMatrix, &impl_linset, &redset, &newpos, &err);
+	ddpolyh=dd_DDMatrix2Poly(intPointMatrix, &err);
+	dd_MatrixPtr P;
+	P=dd_CopyGenerators(ddpolyh);
+	dd_FreePolyhedra(ddpolyh);
+	for(int ii=0;ii<P->rowsize;ii++)
+	{
+ 		int64vec *iv_row=new int64vec(this->numVars);
+		makeInt(P,ii+1,*iv_row);
+		iv_weight =ivAdd(iv_weight, iv_row);
+		delete iv_row;
+	}
+	dd_FreeMatrix(P);
+	dd_FreeMatrix(intPointMatrix);*/
+#ifdef gfanp
+	gettimeofday(&t_dd_end, 0);
+	t_dd += (t_dd_end.tv_sec - t_dd_start.tv_sec + 1e-6*(t_dd_end.tv_usec - t_dd_start.tv_usec));
+#endif	
+	
+	/*Step 3
+	* turn the minimal basis into a reduced one */			
+	// NOTE May assume that at this point srcRing already has 3 blocks of orderins, starting with a
+	// Thus: 
+	//ring dstRing=rCopyAndChangeWeight(srcRing,iv_weight);	
+	ring dstRing=rCopy0(tmpRing);
+	int length=iv_weight->length();
+	int *A=(int *)omAlloc0(length*sizeof(int));
+	for(int jj=0;jj<length;jj++)
+	{
+		A[jj]=(*iv_weight)[jj];
+	}
+	dstRing->wvhdl[0]=(int*)A;
+	rComplete(dstRing);
+	rChangeCurrRing(dstRing);
+ 	rDelete(tmpRing);
+	delete iv_weight;
+
+	ideal dstRing_I;			
+	dstRing_I=idrCopyR(srcRing_HH,srcRing);
+	idDelete(&srcRing_HH); //Hmm.... causes trouble - no more
+	//dstRing_I=idrCopyR(inputIdeal,srcRing);
+	BITSET save=test;
+	test|=Sy_bit(OPT_REDSB);
+	test|=Sy_bit(OPT_REDTAIL);
+#ifndef NDEBUG
+// 	test|=Sy_bit(6);	//OPT_DEBUG
+#endif
+	ideal tmpI;
+	//NOTE Any of the two variants of tmpI={idrCopy(),dstRing_I} does the trick
+	//tmpI = idrCopyR(this->inputIdeal,this->baseRing);
+	tmpI = dstRing_I;
+#ifdef gfanp
+	gettimeofday(&t_kStd_start,0);
+#endif
+	if(gcone::hasHomInput==TRUE)
+		dstRing_I=kStd(tmpI,NULL,isHomog,NULL/*,gcone::hilbertFunction*/);
+	else
+		dstRing_I=kStd(tmpI,NULL,isNotHomog,NULL);
+#ifdef gfanp
+	gettimeofday(&t_kStd_end, 0);
+	t_kStd += (t_kStd_end.tv_sec - t_kStd_start.tv_sec + 1e-6*(t_kStd_end.tv_usec - t_kStd_start.tv_usec));
+#endif
+	idDelete(&tmpI);
+	idNorm(dstRing_I);			
+// 	kInterRed(dstRing_I);
+	idSkipZeroes(dstRing_I);
+	test=save;
+	/*End of step 3 - reduction*/
+			
+	f->setFlipGB(dstRing_I);//store the flipped GB
+// 	idDelete(&dstRing_I);
+	f->flipRing=rCopy(dstRing);	//store the ring on the other side
+#ifndef NDEBUG
+ 	printf("Flipped GB is UCN %i:\n",counter+1);
+ 	idDebugPrint(dstRing_I);
+	printf("\n");
+#endif	
+	idDelete(&dstRing_I);	
+	rChangeCurrRing(srcRing);	//return to the ring we started the computation of flipGB in
+ 	rDelete(dstRing);
+#ifdef gfanp
+	gettimeofday(&end, 0);
+	time_flip += (end.tv_sec - start.tv_sec + 1e-6*(end.tv_usec - start.tv_usec));
+#endif
+}//void flip(ideal gb, facet *f)
+
+/** \brief A slightly different approach to flipping
+* Here we use the fact that in_v(in_u(I))=in_(u+eps*v)(I). Therefore, we do no longer
+* need to compute an interior point and run BBA on the minimal basis but we can rather
+* use the ordering (a(omega),a(fNormal),dp)
+* The second parameter facet *f must not be const since we need to store f->flipGB
+* Problem: Assume we start in a cone with ordering (dp,C). Then \f$ in_\omega(I) \f$
+* will be from a ring with (a(),dp,C) and our resulting cone from (a(),a(),dp,C). Hence a way
+* must be found to circumvent the sequence of a()'s growing to a ridiculous size.
+* Therefore: We use (a(),a(),dp,C) for the computation of the reduced basis. But then we 
+* do have an interior point of the cone by adding the extremal rays. So we replace 
+* the latter cone by a cone with (a(sum_of_rays),dp,C). 
+* Con: It's incredibly ugly
+* Pro: No messing around with readConeFromFile()
+* Is there a way to construct a vector from \f$ \omega \f$ and the facet normal?
+*/
+inline void gcone::flip2(const ideal &gb, facet *f)
+{
+#ifdef gfanp
+	timeval start, end;
+	gettimeofday(&start, 0);
+#endif
+	const int64vec *fNormal;
+	fNormal = f->getRef2FacetNormal();/*->getFacetNormal();*/	//read this->fNormal;
+#ifndef NDEBUG
+// 	printf("flipping UCN %i over facet(",this->getUCN());
+// 	fNormal->show(1,0);
+// 	printf(") with UCN %i\n",f->getUCN());	
+#endif
+	if(this->getUCN() != f->getUCN())
+	{	printf("%i vs %i\n",this->getUCN(), f->getUCN() );
+		WerrorS("Uh oh... Trying to flip over facet with incompatible UCN");
+		exit(-1);
+	}
+	/*1st step: Compute the initial ideal*/
+	ideal initialForm=idInit(IDELEMS(gb),this->gcBasis->rank);	
+	computeInv( gb, initialForm, *fNormal );
+	ring srcRing=currRing;
+	ring tmpRing;
+	
+	const int64vec *intPointOfFacet;
+	intPointOfFacet=f->getInteriorPoint();
+	//Now we need two blocks of ringorder_a!
+	//May assume the same situation as in flip() here			
+	if( (srcRing->order[0]!=ringorder_a/*64*/) && (srcRing->order[1]!=ringorder_a/*64*/) )
+	{
+		int64vec *iv = new int64vec(this->numVars);//init with 1s, since we do not need a 2nd block here but later
+// 		int64vec *iv_foo = new int64vec(this->numVars,1);//placeholder
+		int64vec *ivw = ivNeg(const_cast<int64vec*>(fNormal));		
+		tmpRing=rCopyAndAddWeight2(srcRing,ivw/*intPointOfFacet*/,iv);
+		delete iv;delete ivw;
+// 		delete iv_foo;
+	}
+	else 
+	{
+		int64vec *iv=new int64vec(this->numVars);
+		int64vec *ivw=ivNeg(const_cast<int64vec*>(fNormal));
+		tmpRing=rCopyAndAddWeight2(srcRing,ivw,iv);
+		delete iv; delete ivw;
+		/*tmpRing=rCopy0(srcRing);
+		int length=fNormal->length();
+		int *A1=(int *)omAlloc0(length*sizeof(int));
+		int *A2=(int *)omAlloc0(length*sizeof(int));
+		for(int jj=0;jj<length;jj++)
+		{
+			A1[jj] = -(*fNormal)[jj];
+			A2[jj] = 1;//-(*fNormal)[jj];//NOTE Do we need this here? This is only the facet ideal
+		}
+		omFree(tmpRing->wvhdl[0]);
+		if(tmpRing->wvhdl[1]!=NULL)
+			omFree(tmpRing->wvhdl[1]);
+		tmpRing->wvhdl[0]=(int*)A1;		
+		tmpRing->block1[0]=length;
+		tmpRing->wvhdl[1]=(int*)A2;		
+		tmpRing->block1[1]=length;
+		rComplete(tmpRing);*/
+	}
+// 	delete fNormal; //NOTE Do not delete when using getRef2FacetNormal();
+	rChangeCurrRing(tmpRing);	
+	//Now currRing should have (a(),a(),dp,C)		
+	ideal ina;			
+	ina=idrCopyR(initialForm,srcRing);
+	idDelete(&initialForm);
+	ideal H;
+#ifdef gfanp
+	timeval t_kStd_start, t_kStd_end;
+	gettimeofday(&t_kStd_start,0);
+#endif
+	BITSET save=test;
+	test|=Sy_bit(OPT_REDSB);
+	test|=Sy_bit(OPT_REDTAIL);
+// 	if(gcone::hasHomInput==TRUE)
+		H=kStd(ina,NULL,testHomog/*isHomog*/,NULL/*,gcone::hilbertFunction*/);
+// 	else
+// 		H=kStd(ina,NULL,isNotHomog,NULL);	//This is \mathcal(G)_{>_-\alpha}(in_v(I))
+	test=save;
+#ifdef gfanp
+	gettimeofday(&t_kStd_end, 0);
+	t_kStd += (t_kStd_end.tv_sec - t_kStd_start.tv_sec + 1e-6*(t_kStd_end.tv_usec - t_kStd_start.tv_usec));
+#endif
+	idSkipZeroes(H);
+	idDelete(&ina);
+	
+	rChangeCurrRing(srcRing);
+	ideal srcRing_H;
+	ideal srcRing_HH;			
+	srcRing_H=idrCopyR(H,tmpRing);
+	//H is needed further below, so don't idDelete here
+	srcRing_HH=ffG(srcRing_H,this->gcBasis);
+	idDelete(&srcRing_H);
+	//Now BBA(srcRing_HH) with (a(),a(),dp)
+	/* Evil modification of currRing */
+	ring dstRing=rCopy0(tmpRing);
+	int length=this->numVars;
+	int *A1=(int *)omAlloc0(length*sizeof(int));
+	int *A2=(int *)omAlloc0(length*sizeof(int));
+	const int64vec *ivw=f->getRef2FacetNormal();
+	for(int jj=0;jj<length;jj++)
+	{
+		A1[jj] = (*intPointOfFacet)[jj];
+		A2[jj] = -(*ivw)[jj];//TODO Or minus (*ivw)[ii] ??? NOTE minus
+	}
+	omFree(dstRing->wvhdl[0]);
+	if(dstRing->wvhdl[1]!=NULL)
+		omFree(dstRing->wvhdl[1]);
+	dstRing->wvhdl[0]=(int*)A1;		
+	dstRing->block1[0]=length;
+	dstRing->wvhdl[1]=(int*)A2;		
+	dstRing->block1[1]=length;
+	rComplete(dstRing);
+	rChangeCurrRing(dstRing);
+	ideal dstRing_I;			
+	dstRing_I=idrCopyR(srcRing_HH,srcRing);
+	idDelete(&srcRing_HH); //Hmm.... causes trouble - no more	
+	save=test;
+	test|=Sy_bit(OPT_REDSB);
+	test|=Sy_bit(OPT_REDTAIL);
+	ideal tmpI;
+	tmpI = dstRing_I;
+#ifdef gfanp
+// 	timeval t_kStd_start, t_kStd_end;
+	gettimeofday(&t_kStd_start,0);
+#endif
+// 	if(gcone::hasHomInput==TRUE)
+// 		dstRing_I=kStd(tmpI,NULL,isHomog,NULL/*,gcone::hilbertFunction*/);
+// 	else
+		dstRing_I=kStd(tmpI,NULL,testHomog,NULL);
+#ifdef gfanp
+	gettimeofday(&t_kStd_end, 0);
+	t_kStd += (t_kStd_end.tv_sec - t_kStd_start.tv_sec + 1e-6*(t_kStd_end.tv_usec - t_kStd_start.tv_usec));
+#endif
+	idDelete(&tmpI);
+	idNorm(dstRing_I);			
+	idSkipZeroes(dstRing_I);
+	test=save;
+	/*End of step 3 - reduction*/
+	
+	f->setFlipGB(dstRing_I);
+	f->flipRing=rCopy(dstRing);
+	rDelete(tmpRing);
+	rDelete(dstRing);
+	//Now we should have dstRing with (a(),a(),dp,C)
+	//This must be replaced with (a(),dp,C) BEFORE gcTmp is actually added to the list
+	//of cones in noRevS
+	rChangeCurrRing(srcRing);
+#ifdef gfanp
+	gettimeofday(&end, 0);
+	time_flip2 += (end.tv_sec - start.tv_sec + 1e-6*(end.tv_usec - start.tv_usec));
+#endif
+}//flip2
+
+/** \brief Compute initial ideal
+ * Compute the initial ideal in_v(G) wrt a (possible) facet normal
+ * used in gcone::getFacetNormal in order to preprocess possible facet normals
+ * and in gcone::flip for obvious reasons.
+*/
+/*inline*/ void gcone::computeInv(const ideal &gb, ideal &initialForm, const int64vec &fNormal)
+{
+#ifdef gfanp
+	timeval start, end;
+	gettimeofday(&start, 0);
+#endif
+	for (int ii=0;ii<IDELEMS(gb);ii++)
+	{
+		poly initialFormElement;
+		poly aktpoly = (poly)gb->m[ii];//Ptr, so don't pDelete(aktpoly)
+		int *leadExpV=(int *)omAlloc((this->numVars+1)*sizeof(int));
+		pGetExpV(aktpoly,leadExpV);	//find the leading exponent in leadExpV[1],...,leadExpV[n], use pNext(p)
+		initialFormElement=pHead(aktpoly);
+// 		int *v=(int *)omAlloc((this->numVars+1)*sizeof(int));
+		while(pNext(aktpoly)!=NULL)	/*loop trough terms and check for parallelity*/
+		{
+			int64vec *check = new int64vec(this->numVars);
+			aktpoly=pNext(aktpoly);	//next term
+			int *v=(int *)omAlloc((this->numVars+1)*sizeof(int));
+			pGetExpV(aktpoly,v);		
+			/* Convert (int)v into (int64vec)check */
+// 			bool notPar=FALSE;
+			for (int jj=0;jj<this->numVars;jj++)
+			{
+				(*check)[jj]=v[jj+1]-leadExpV[jj+1];
+// 				register int64 foo=(fNormal)[jj];
+// 				if( ( (*check)[jj]  == /*fNormal[jj]*/foo ) 
+// 				 || ( (/*fNormal[jj]*/foo!=0) && ( ( (*check)[jj] % /*fNormal[jj]*/foo ) !=0 ) ) ) 
+// 				{
+// 					notPar=TRUE;
+// 					break;
+// 				}
+			}
+			omFree(v);
+			if (isParallel(*check,fNormal))//Found a parallel vector. Add it
+//  			if(notPar==FALSE)
+			{
+				initialFormElement = pAdd((initialFormElement),(poly)pHead(aktpoly));//pAdd = p_Add_q destroys args
+			}
+			delete check;
+		}//while
+// 		omFree(v);
+#ifndef NDEBUG
+//  		cout << "Initial Form=";				
+//  		pWrite(initialFormElement[ii]);
+//  		cout << "---" << endl;
+#endif
+		/*Now initialFormElement must be added to (ideal)initialForm */
+		initialForm->m[ii]=pCopy(initialFormElement);
+		pDelete(&initialFormElement);
+		omFree(leadExpV);
+	}//for
+#ifdef gfanp
+	gettimeofday(&end, 0);
+	time_computeInv += (end.tv_sec - start.tv_sec + 1e-6*(end.tv_usec - start.tv_usec));
+#endif
+}
+
+/** \brief Compute the remainder of a polynomial by a given ideal
+ *
+ * Compute \f$ f^{\mathcal{G}} \f$
+ * Algorithm is taken from Cox, Little, O'Shea, IVA 2nd Ed. p 62
+ * However, since we are only interested in the remainder, there is no need to
+ * compute the factors \f$ a_i \f$
+ */
+//NOTE: Should be replaced by kNF or kNF2
+//NOTE: Done
+//NOTE: removed with r12286
+		
+/** \brief Compute \f$ f-f^{\mathcal{G}} \f$
+*/
+//NOTE: use kNF or kNF2 instead of restOfDivision
+inline ideal gcone::ffG(const ideal &H, const ideal &G)
+{
+	int size=IDELEMS(H);
+	ideal res=idInit(size,1);
+	for (int ii=0;ii<size;ii++)
+	{
+// 		poly temp1;//=pInit();
+// 		poly temp2;//=pInit();
+		poly temp3;//=pInit();//polys to temporarily store values for pSub
+// 		res->m[ii]=pCopy(kNF(G, NULL,H->m[ii],0,0));
+//  		temp1=pCopy(H->m[ii]);//TRY
+// 		temp2=pCopy(res->m[ii]);
+		//NOTE if gfanHeuristic=0 (sic!) this results in dPolyErrors - mon from wrong ring
+//  		temp2=pCopy(kNF(G, NULL,H->m[ii],0,0));//TRY
+//  		temp3=pSub(temp1, temp2);//TRY
+		temp3=pSub(pCopy(H->m[ii]),pCopy(kNF(G,NULL,H->m[ii],0,0)));//NOTRY
+		res->m[ii]=pCopy(temp3);
+		//res->m[ii]=pSub(temp1,temp2); //buggy		
+		//cout << "res->m["<<ii<<"]=";pWrite(res->m[ii]);
+// 		pDelete(&temp1);//TRY
+// 		pDelete(&temp2);
+		pDelete(&temp3);
+	}
+	return res;
+}
+	
+/** \brief Preprocessing of inequlities
+* Do some preprocessing on the matrix of inequalities
+* 1) Replace several constraints on the pos. orthants by just one for each orthant
+* 2) Remove duplicates of inequalities
+* 3) Remove inequalities that arise as sums of other inequalities
+*/
+void gcone::preprocessInequalities(dd_MatrixPtr &ddineq)
+{
+/*	int *posRowsArray=NULL;
+	int num_alloc=0;
+	int num_elts=0;
+ 	int offset=0;*/
+	//Remove zeroes (and strictly pos rows?)
+	for(int ii=0;ii<ddineq->rowsize;ii++)
+	{
+		int64vec *iv = new int64vec(this->numVars);
+		int64vec *ivNull = new int64vec(this->numVars);//Needed for intvec64::compare(*int64vec)
+		int posCtr=0;
+		for(int jj=0;jj<this->numVars;jj++)
+		{
+			(*iv)[jj]=(int)mpq_get_d(ddineq->matrix[ii][jj+1]);
+			if((*iv)[jj]>0)//check for strictly pos rows
+				posCtr++;
+			//Behold! This will delete the row for the standard simplex!
+		}
+// 		if( (iv->compare(0)==0) || (posCtr==iv->length()) )
+		if( (posCtr==iv->length()) || (iv->compare(ivNull)==0) )		
+		{
+			dd_MatrixRowRemove(&ddineq,ii+1);
+			ii--;//Yes. This is on purpose
+		}
+		delete iv;
+		delete ivNull;
+	}
+	//Remove duplicates of rows
+// 	posRowsArray=NULL;
+// 	num_alloc=0;
+// 	num_elts=0;
+// 	offset=0;
+// 	int num_newRows = ddineq->rowsize;
+// 	for(int ii=0;ii<ddineq->rowsize-1;ii++)
+// 	for(int ii=0;ii<num_newRows-1;ii++)
+// 	{
+// 		int64vec *iv = new int64vec(this->numVars);//1st vector to check against
+// 		for(int jj=0;jj<this->numVars;jj++)
+// 			(*iv)[jj]=(int)mpq_get_d(ddineq->matrix[ii][jj+1]);
+// 		for(int jj=ii+1;jj</*ddineq->rowsize*/num_newRows;jj++)
+// 		{
+// 			int64vec *ivCheck = new int64vec(this->numVars);//Checked against iv
+// 			for(int kk=0;kk<this->numVars;kk++)
+// 				(*ivCheck)[kk]=(int)mpq_get_d(ddineq->matrix[jj][kk+1]);
+// 			if (iv->compare(ivCheck)==0)
+// 			{
+// // 				cout << "=" << endl;
+// // 				num_alloc++;
+// // 				void *tmp=realloc(posRowsArray,(num_alloc*sizeof(int)));
+// // 				if(!tmp)
+// // 				{
+// // 					WerrorS("Woah dude! Couldn't realloc memory\n");
+// // 					exit(-1);
+// // 				}
+// // 				posRowsArray = (int*)tmp;
+// // 				posRowsArray[num_elts]=jj;
+// // 				num_elts++;
+// 				dd_MatrixRowRemove(&ddineq,jj+1);
+// 				num_newRows = ddineq->rowsize;
+// 			}
+// 			delete ivCheck;
+// 		}
+// 		delete iv;
+// 	}
+// 	for(int ii=0;ii<num_elts;ii++)
+// 	{
+// 		dd_MatrixRowRemove(&ddineq,posRowsArray[ii]+1-offset);
+// 		offset++;
+// 	}
+// 	free(posRowsArray);
+	//Apply Thm 2.1 of JOTA Vol 53 No 1 April 1987*/	
+}//preprocessInequalities
+	
+/** \brief Compute a Groebner Basis
+ *
+ * Computes the Groebner basis and stores the result in gcone::gcBasis
+ *\param ideal
+ *\return void
+ */
+inline void gcone::getGB(const ideal &inputIdeal)		
+{
+	BITSET save=test;
+	test|=Sy_bit(OPT_REDSB);
+	test|=Sy_bit(OPT_REDTAIL);
+	ideal gb;
+	gb=kStd(inputIdeal,NULL,testHomog,NULL);
+	idNorm(gb);
+	idSkipZeroes(gb);
+	this->gcBasis=gb;	//write the GB into gcBasis
+	test=save;
+}//void getGB
+		
+/** \brief Compute the negative of a given int64vec
+	*/		
+static int64vec* ivNeg(/*const*/int64vec *iv)
+{	//Hm, switching to int64vec const int64vec does no longer work
+	int64vec *res;// = new int64vec(iv->length());
+	res=iv64Copy(iv);
+	*res *= (int)-1;						
+	return res;
+}
+
+
+/** \brief Compute the dot product of two intvecs
+*
+*/
+static int dotProduct(const int64vec &iva, const int64vec &ivb)				
+{			
+	int res=0;	
+	for (int i=0;i<pVariables;i++)
+	{
+// #ifndef NDEBUG
+// 	(const_cast<int64vec*>(&iva))->show(1,0); (const_cast<int64vec*>(&ivb))->show(1,0);
+// #endif
+		res = res+(iva[i]*ivb[i]);
+	}
+	return res;
+}
+/** \brief Check whether two intvecs are parallel
+ *
+ * \f$ \alpha\parallel\beta\Leftrightarrow\langle\alpha,\beta\rangle^2=\langle\alpha,\alpha\rangle\langle\beta,\beta\rangle \f$
+ */
+static bool isParallel(const int64vec &a,const int64vec &b)
+{	
+	bool res;
+	int lhs=dotProduct(a,b)*dotProduct(a,b);
+	int rhs=dotProduct(a,a)*dotProduct(b,b);
+	return res = (lhs==rhs)?TRUE:FALSE;
+}
+
+/** \brief Compute an interior point of a given cone
+ * Result will be written into int64vec iv. 
+ * Any rational point is automatically converted into an integer.
+ */
+void gcone::interiorPoint( dd_MatrixPtr &M, int64vec &iv) //no const &M here since we want to remove redundant rows
+{
+	dd_LPPtr lp,lpInt;
+	dd_ErrorType err=dd_NoError;
+	dd_LPSolverType solver=dd_DualSimplex;
+	dd_LPSolutionPtr lpSol=NULL;
+// 	dd_rowset ddlinset,ddredrows;	//needed for dd_FindRelativeInterior
+//  	dd_rowindex ddnewpos;
+	dd_NumberType numb;	
+	//M->representation=dd_Inequality;
+			
+	//NOTE: Make this n-dimensional!
+	//dd_set_si(M->rowvec[0],1);dd_set_si(M->rowvec[1],1);dd_set_si(M->rowvec[2],1);
+									
+	/*NOTE: Leave the following line commented out!
+	* Otherwise it will slow down computations a great deal
+	* */
+// 	dd_MatrixCanonicalizeLinearity(&M, &ddlinset, &ddnewpos, &err);
+	//if (err!=dd_NoError){cout << "Error during dd_MatrixCanonicalize" << endl;}
+	dd_MatrixPtr posRestr=dd_CreateMatrix(this->numVars,this->numVars+1);
+	int jj=1;
+	for (int ii=0;ii<this->numVars;ii++)
+	{
+		dd_set_si(posRestr->matrix[ii][jj],1);
+		jj++;							
+	}
+	dd_MatrixAppendTo(&M,posRestr);
+	dd_FreeMatrix(posRestr);
+	lp=dd_Matrix2LP(M, &err);
+	if (err!=dd_NoError){WerrorS("Error during dd_Matrix2LP in gcone::interiorPoint");}
+	if (lp==NULL){WerrorS("LP is NULL");}
+#ifndef NDEBUG
+//			dd_WriteLP(stdout,lp);
+#endif	
+					
+	lpInt=dd_MakeLPforInteriorFinding(lp);
+	if (err!=dd_NoError){WerrorS("Error during dd_MakeLPForInteriorFinding in gcone::interiorPoint");}
+#ifndef NDEBUG
+// 			dd_WriteLP(stdout,lpInt);
+#endif			
+// 	dd_FindRelativeInterior(M,&ddlinset,&ddredrows,&lpSol,&err);
+	if (err!=dd_NoError)
+	{
+		WerrorS("Error during dd_FindRelativeInterior in gcone::interiorPoint");
+		dd_WriteErrorMessages(stdout, err);
+	}			
+	dd_LPSolve(lpInt,solver,&err);	//This will not result in a point from the relative interior
+// 	if (err!=dd_NoError){WerrorS("Error during dd_LPSolve");}									
+	lpSol=dd_CopyLPSolution(lpInt);
+// 	if (err!=dd_NoError){WerrorS("Error during dd_CopyLPSolution");}
+#ifndef NDEBUG
+	printf("Interior point: ");
+	for (int ii=1; ii<(lpSol->d)-1;ii++)
+	{
+		dd_WriteNumber(stdout,lpSol->sol[ii]);
+	}
+	printf("\n");
+#endif			
+	//NOTE The following strongly resembles parts of makeInt. 
+	//Maybe merge sometimes
+	mpz_t kgV; mpz_init(kgV);
+	mpz_set_str(kgV,"1",10);
+	mpz_t den; mpz_init(den);
+	mpz_t tmp; mpz_init(tmp);
+	mpq_get_den(tmp,lpSol->sol[1]);
+	for (int ii=1;ii<(lpSol->d)-1;ii++)
+	{
+		mpq_get_den(den,lpSol->sol[ii+1]);
+		mpz_lcm(kgV,tmp,den);
+		mpz_set(tmp, kgV);
+	}
+	mpq_t qkgV;
+	mpq_init(qkgV);
+	mpq_set_z(qkgV,kgV);
+	for (int ii=1;ii<(lpSol->d)-1;ii++)
+	{
+		mpq_t product;
+		mpq_init(product);
+		mpq_mul(product,qkgV,lpSol->sol[ii]);
+		iv[ii-1]=(int)mpz_get_d(mpq_numref(product));
+		mpq_clear(product);
+	}
+#ifndef NDEBUG
+// 			iv.show();
+// 			cout << endl;
+#endif
+	mpq_clear(qkgV);
+	mpz_clear(tmp);
+	mpz_clear(den);
+	mpz_clear(kgV);			
+			
+	dd_FreeLPSolution(lpSol);
+	dd_FreeLPData(lpInt);
+	dd_FreeLPData(lp);
+// 	set_free(ddlinset);
+// 	set_free(ddredrows); 	
+			
+}//void interiorPoint(dd_MatrixPtr const &M)
+
+/** Computes an interior point of a cone by taking two interior points a,b from two different facets
+* and then computing b+(a-b)/2
+* Of course this only works for flippable facets 
+* Two cases may occur: 
+* 1st: There are only two facets who share the only strictly positive ray
+* 2nd: There are at least two facets which have a distinct positive ray
+* In the former case we use linear algebra to determine an interior point,
+* in the latter case we simply add up the two rays
+*
+* Way too bad! The case may occur that the cone is spanned by three rays, of which only two are strictly
+* positive => these lie in a plane and thus their sum is not from relative interior.
+* So let's just sum up all rays, find one strictly positive and shift the point along that ray
+* 
+* Used by noRevS
+*NOTE no longer used nor maintained. MM Mar 9, 2010
+*/
+// void gcone::interiorPoint2()
+// {//idPrint(this->gcBasis);
+// #ifndef NDEBUG
+// 	if(this->ivIntPt!=NULL)
+// 		WarnS("Interior point already exists - ovrewriting!");
+// #endif
+// 	facet *f1 = this->facetPtr;
+// 	facet *f2 = NULL;
+// 	int64vec *intF1=NULL;
+// 	while(f1!=NULL)
+// 	{
+// 		if(f1->isFlippable)
+// 		{
+// 			facet *f1Ray = f1->codim2Ptr;
+// 			while(f1Ray!=NULL)
+// 			{
+// 				const int64vec *check=f1Ray->getRef2FacetNormal();
+// 				if(iv64isStrictlyPositive(check))
+// 				{
+// 					intF1=iv64Copy(check);
+// 					break;
+// 				}				
+// 				f1Ray=f1Ray->next;
+// 			}
+// 		}
+// 		if(intF1!=NULL)
+// 			break;
+// 		f1=f1->next;
+// 	}
+// 	if(f1!=NULL && f1->next!=NULL)//Choose another facet, different from f1
+// 		f2=f1->next;
+// 	else
+// 		f2=this->facetPtr;
+// 	if(intF1==NULL && hasHomInput==TRUE)
+// 	{
+// 		intF1 = new int64vec(this->numVars);
+// 		for(int ii=0;ii<this->numVars;ii++)
+// 			(*intF1)[ii]=1;
+// 	}
+// 	assert(f1); assert(f2);
+// 	int64vec *intF2=f2->getInteriorPoint();
+// 	mpq_t *qPosRay = new mpq_t[this->numVars];//The positive ray from above
+// 	mpq_t *qIntPt = new mpq_t[this->numVars];//starting vector a+((b-a)/2)
+// 	mpq_t *qPosIntPt = new mpq_t[this->numVars];//This should be >0 eventually
+// 	for(int ii=0;ii<this->numVars;ii++)
+// 	{
+// 		mpq_init(qPosRay[ii]);
+// 		mpq_init(qIntPt[ii]);
+// 		mpq_init(qPosIntPt[ii]);
+// 	}	
+// 	//Compute a+((b-a)/2) && Convert intF1 to mpq
+// 	for(int ii=0;ii<this->numVars;ii++)
+// 	{
+// 		mpq_t a,b;
+// 		mpq_init(a); mpq_init(b);
+// 		mpq_set_si(a,(*intF1)[ii],1);
+// 		mpq_set_si(b,(*intF2)[ii],1);
+// 		mpq_t diff;
+// 		mpq_init(diff);
+// 		mpq_sub(diff,b,a);	//diff=b-a
+// 		mpq_t quot;
+// 		mpq_init(quot);
+// 		mpq_div_2exp(quot,diff,1);	//quot=diff/2=(b-a)/2
+// 		mpq_clear(diff);
+// 		//Don't be clever and reuse diff here
+// 		mpq_t sum; mpq_init(sum);
+// 		mpq_add(sum,b,quot);	//sum=b+quot=a+(b-a)/2
+// 		mpq_set(qIntPt[ii],sum);
+// 		mpq_clear(sum);
+// 		mpq_clear(quot);
+// 		mpq_clear(a); mpq_clear(b);
+// 		//Now for intF1
+// 		mpq_set_si(qPosRay[ii],(*intF1)[ii],1);
+// 	}
+// 	//Now add: qPosIntPt=qPosRay+qIntPt until qPosIntPt >0
+// 	while(TRUE)
+// 	{	
+// 		bool success=FALSE;
+// 		int posCtr=0;	
+// 		for(int ii=0;ii<this->numVars;ii++)
+// 		{
+// 			mpq_t sum; mpq_init(sum);
+// 			mpq_add(sum,qPosRay[ii],qIntPt[ii]);
+// 			mpq_set(qPosIntPt[ii],sum);
+// 			mpq_clear(sum);
+// 			if(mpq_sgn(qPosIntPt[ii])==1)
+// 				posCtr++;
+// 		}
+// 		if(posCtr==this->numVars)//qPosIntPt > 0 
+// 			break;
+// 		else
+// 		{
+// 			mpq_t qTwo; mpq_init(qTwo);
+// 			mpq_set_ui(qTwo,2,1);
+// 			for(int jj=0;jj<this->numVars;jj++)
+// 			{
+// 				mpq_t tmp; mpq_init(tmp);
+// 				mpq_mul(tmp,qPosRay[jj],qTwo);
+// 				mpq_set( qPosRay[jj], tmp);
+// 				mpq_clear(tmp);
+// 			}
+// 			mpq_clear(qTwo);
+// 		}
+// 	}//while
+// 	//Now qPosIntPt ought to be >0, so convert back to int :D
+// 	/*Compute lcm of the denominators*/
+// 	mpz_t *denom = new mpz_t[this->numVars];
+// 	mpz_t tmp,kgV;
+// 	mpz_init(tmp); mpz_init(kgV);
+// 	for (int ii=0;ii<this->numVars;ii++)
+// 	{
+// 		mpz_t z;
+// 		mpz_init(z);
+// 		mpq_get_den(z,qPosIntPt[ii]);
+// 		mpz_init(denom[ii]);
+// 		mpz_set( denom[ii], z);
+// 		mpz_clear(z);				
+// 	}
+// 		
+// 	mpz_set(tmp,denom[0]);
+// 	for (int ii=0;ii<this->numVars;ii++)
+// 	{
+// 		mpz_lcm(kgV,tmp,denom[ii]);
+// 		mpz_set(tmp,kgV);				
+// 	}
+// 	mpz_clear(tmp);	
+// 	/*Multiply the nominators by kgV*/
+// 	mpq_t qkgV,res;
+// 	mpq_init(qkgV);
+// 	mpq_canonicalize(qkgV);		
+// 	mpq_init(res);
+// 	mpq_canonicalize(res);
+// 				
+// 	mpq_set_num(qkgV,kgV);
+// 	int64vec *n=new int64vec(this->numVars);
+// 	for (int ii=0;ii<this->numVars;ii++)
+// 	{
+// 		mpq_canonicalize(qPosIntPt[ii]);
+// 		mpq_mul(res,qkgV,qPosIntPt[ii]);
+// 		(*n)[ii]=(int)mpz_get_d(mpq_numref(res));
+// 	}
+// 	this->setIntPoint(n);
+// 	delete n;
+// 	delete [] qPosIntPt;
+// 	delete [] denom;
+// 	delete [] qPosRay;
+// 	delete [] qIntPt;
+// 	mpz_clear(kgV);
+// 	mpq_clear(qkgV); mpq_clear(res);
+// }
+	
+/** \brief Copy a ring and add a weighted ordering in first place
+ * 
+ */
+ring gcone::rCopyAndAddWeight(const ring &r, int64vec *ivw)				
+{
+	ring res=rCopy0(r);
+	int jj;
+			
+	omFree(res->order);
+	res->order =(int *)omAlloc0(4*sizeof(int/*64*/));
+	omFree(res->block0);
+	res->block0=(int *)omAlloc0(4*sizeof(int/*64*/));
+	omFree(res->block1);
+	res->block1=(int *)omAlloc0(4*sizeof(int/*64*/));
+	omfree(res->wvhdl);
+	res->wvhdl =(int **)omAlloc0(4*sizeof(int/*64*/**));
+			
+	res->order[0]=ringorder_a/*64*/;
+	res->block0[0]=1;
+	res->block1[0]=res->N;
+	res->order[1]=ringorder_dp;	//basically useless, since that should never be used			
+	res->block0[1]=1;
+	res->block1[1]=res->N;
+	res->order[2]=ringorder_C;
+
+	int length=ivw->length();
+	int/*64*/ *A=(int/*64*/ *)omAlloc0(length*sizeof(int/*64*/));
+	for (jj=0;jj<length;jj++)
+	{				
+		A[jj]=(*ivw)[jj];
+		if((*ivw)[jj]>=INT_MAX) WarnS("A[jj] exceeds INT_MAX in gcone::rCopyAndAddWeight!\n");
+	}			
+	res->wvhdl[0]=(int *)A;
+	res->block1[0]=length;
+			
+	rComplete(res);
+	return res;
+}//rCopyAndAdd
+		
+ring gcone::rCopyAndAddWeight2(const ring &r,const int64vec *ivw, const int64vec *fNormal)				
+{
+	ring res=rCopy0(r);
+			
+	omFree(res->order);
+	res->order =(int *)omAlloc0(5*sizeof(int/*64*/));
+	omFree(res->block0);
+	res->block0=(int *)omAlloc0(5*sizeof(int/*64*/));
+	omFree(res->block1);
+	res->block1=(int *)omAlloc0(5*sizeof(int/*64*/));
+	omfree(res->wvhdl);
+	res->wvhdl =(int **)omAlloc0(5*sizeof(int/*64*/**));
+			
+	res->order[0]=ringorder_a/*64*/;
+	res->block0[0]=1;
+	res->block1[0]=res->N;
+	res->order[1]=ringorder_a/*64*/;
+	res->block0[1]=1;
+	res->block1[1]=res->N;
+	
+	res->order[2]=ringorder_dp;
+	res->block0[2]=1;
+	res->block1[2]=res->N;
+	
+	res->order[3]=ringorder_C;
+
+	int length=ivw->length();
+	int/*64*/ *A1=(int/*64*/ *)omAlloc0(length*sizeof(int/*64*/));
+	int/*64*/ *A2=(int/*64*/ *)omAlloc0(length*sizeof(int/*64*/));
+	for (int jj=0;jj<length;jj++)
+	{				
+		A1[jj]=(*ivw)[jj];
+		A2[jj]=-(*fNormal)[jj];
+		if((*ivw)[jj]>=INT_MAX || (*fNormal)[jj]>=INT_MAX) WarnS("A[jj] exceeds INT_MAX in gcone::rCopyAndAddWeight2!\n");
+	}			
+	res->wvhdl[0]=(int *)A1;
+	res->block1[0]=length;
+	res->wvhdl[1]=(int *)A2;
+	res->block1[1]=length;
+	rComplete(res);
+	return res;
+}
+		
+//NOTE not needed anywhere
+// ring rCopyAndChangeWeight(ring const &r, int64vec *ivw)
+// {
+// 	ring res=rCopy0(currRing);
+// 	rComplete(res);
+// 	rSetWeightVec(res,(int64*)ivw);
+// 	//rChangeCurrRing(rnew);
+// 	return res;
+// }
+		
+/** \brief Checks whether a given facet is a search facet
+ * Determines whether a given facet of a cone is the search facet of a neighbouring cone
+ * This is done in the following way:
+ * We loop through all facets of the cone and find the "smallest" facet, i.e. the unique facet
+ * that is first crossed during the generic walk.
+ * We then check whether the fNormal of this facet is parallel to the fNormal of our testfacet.
+ * If this is the case, then our facet is indeed a search facet and TRUE is retuned. 
+*/
+//removed with r12286
+		
+/** \brief Check for equality of two intvecs
+ */
+static bool ivAreEqual(const int64vec &a, const int64vec &b)
+{
+	bool res=TRUE;
+	for(int ii=0;ii<pVariables;ii++)
+	{
+		if(a[ii]!=b[ii])
+		{
+			res=FALSE;
+			break;
+		}
+	}
+	return res;
+}
+		
+/** \brief The reverse search algorithm
+ */
+//removed with r12286
+/** \brief Compute the lineality/homogeneity space
+* It is the kernel of the inequality matrix Ax=0
+* As a result gcone::dd_LinealitySpace is set
+*/
+dd_MatrixPtr gcone::computeLinealitySpace()
+{
+	dd_MatrixPtr res;
+	dd_MatrixPtr ddineq;
+	ddineq=dd_CopyMatrix(this->ddFacets);	
+	//Add a row of 0s in 0th place
+	dd_MatrixPtr ddAppendRowOfZeroes=dd_CreateMatrix(1,this->numVars+1);
+	dd_MatrixPtr ddFoo=dd_AppendMatrix(ddAppendRowOfZeroes,ddineq);
+	dd_FreeMatrix(ddAppendRowOfZeroes);
+	dd_FreeMatrix(ddineq);
+	ddineq=dd_CopyMatrix(ddFoo);
+	dd_FreeMatrix(ddFoo);
+	//Cohen starts here
+	int dimKer=0;//Cohen calls this r
+	int m=ddineq->rowsize;//Rows
+	int n=ddineq->colsize;//Cols
+	int c[m+1];
+	int d[n+1];
+	for(int ii=0;ii<m;ii++)
+		c[ii]=0;
+	for(int ii=0;ii<n;ii++)
+		d[ii]=0;	
+	
+	for(int k=1;k<n;k++)
+	{
+		//Let's find a j s.t. m[j][k]!=0 && c[j]=0		
+		int condCtr=0;//Check each row for zeroness
+		for(int j=1;j<m;j++)
+		{
+			if(mpq_sgn(ddineq->matrix[j][k])!=0 && c[j]==0)
+			{
+				mpq_t quot; mpq_init(quot);
+				mpq_t one; mpq_init(one); mpq_set_str(one,"-1",10);
+				mpq_t ratd; mpq_init(ratd);
+				if((int)mpq_get_d(ddineq->matrix[j][k])!=0)
+					mpq_div(quot,one,ddineq->matrix[j][k]);
+				mpq_set(ratd,quot);
+				mpq_canonicalize(ratd);
+		
+				mpq_set_str(ddineq->matrix[j][k],"-1",10);
+				for(int ss=k+1;ss<n;ss++)
+				{
+					mpq_t prod; mpq_init(prod);
+					mpq_mul(prod, ratd, ddineq->matrix[j][ss]);				
+					mpq_set(ddineq->matrix[j][ss],prod);
+					mpq_canonicalize(ddineq->matrix[j][ss]);
+					mpq_clear(prod);
+				}		
+				for(int ii=1;ii<m;ii++)
+				{
+					if(ii!=j)
+					{
+						mpq_set(ratd,ddineq->matrix[ii][k]);
+						mpq_set_str(ddineq->matrix[ii][k],"0",10);			
+						for(int ss=k+1;ss<n;ss++)
+						{
+							mpq_t prod; mpq_init(prod);
+							mpq_mul(prod, ratd, ddineq->matrix[j][ss]);
+							mpq_t sum; mpq_init(sum);
+							mpq_add(sum, ddineq->matrix[ii][ss], prod);
+							mpq_set(ddineq->matrix[ii][ss],	sum);
+							mpq_canonicalize(ddineq->matrix[ii][ss]);
+							mpq_clear(prod);
+							mpq_clear(sum);
+						}
+					}
+				}
+				c[j]=k;		
+				d[k]=j;
+				mpq_clear(quot); mpq_clear(ratd); mpq_clear(one);	
+			}
+			else
+				condCtr++;
+		}			
+		if(condCtr==m-1)	//Why -1 ???
+		{
+			dimKer++;
+			d[k]=0;
+// 			break;//goto _4;
+		}//else{
+		/*Eliminate*/
+	}//for(k
+	/*Output kernel, i.e. set gcone::dd_LinealitySpace here*/	
+// 	gcone::dd_LinealitySpace = dd_CreateMatrix(dimKer,this->numVars+1);
+	res = dd_CreateMatrix(dimKer,this->numVars+1);
+	int row=-1;
+	for(int kk=1;kk<n;kk++)
+	{
+		if(d[kk]==0)
+		{
+			row++;
+			for(int ii=1;ii<n;ii++)
+			{
+				if(d[ii]>0)
+					mpq_set(res->matrix[row][ii],ddineq->matrix[d[ii]][kk]);
+				else if(ii==kk)				
+					mpq_set_str(res->matrix[row][ii],"1",10);
+				mpq_canonicalize(res->matrix[row][ii]);
+			}
+		}
+	}
+	dd_FreeMatrix(ddineq);
+	return(res);
+	//Better safe than sorry:
+	//NOTE dd_LinealitySpace contains RATIONAL ENTRIES
+	//Therefore if you need integer ones: CALL gcone::makeInt(...) method
+}	
+
+
+/** \brief The new method of Markwig and Jensen
+ * Compute gcBasis and facets for the arbitrary starting cone. Store \f$(codim-1)\f$-facets as normals.
+ * In order to represent a facet uniquely compute also the \f$(codim-2)\f$-facets and norm by the gcd of the components.
+ * Keep a list of facets as a linked list containing an int64vec and an integer matrix.
+ * Since a \f$(codim-1)\f$-facet belongs to exactly two full dimensional cones, we remove a facet from the list as
+ * soon as we compute this facet again. Comparison of facets is done by...
+ */
+void gcone::noRevS(gcone &gcRoot, bool usingIntPoint)
+{	
+	facet *SearchListRoot = new facet(); //The list containing ALL facets we come across
+	facet *SearchListAct;
+	SearchListAct = NULL;
+	//SearchListAct = SearchListRoot;			
+	gcone *gcAct;
+	gcAct = &gcRoot;
+	gcone *gcPtr;	//Pointer to end of linked list of cones
+	gcPtr = &gcRoot;
+	gcone *gcNext;	//Pointer to next cone to be visited
+	gcNext = &gcRoot;
+	gcone *gcHead;
+	gcHead = &gcRoot;			
+	facet *fAct;
+	fAct = gcAct->facetPtr;				
+	ring rAct;
+	rAct = currRing;
+	int UCNcounter=gcAct->getUCN();	
+#ifndef NDEBUG
+	printf("NoRevs\n");
+	printf("Facets are:\n");
+	gcAct->showFacets();
+#endif			
+	/*Compute lineality space here
+	* Afterwards static dd_MatrixPtr gcone::dd_LinealitySpace is set*/
+	if(dd_LinealitySpace==NULL)
+		dd_LinealitySpace = gcAct->computeLinealitySpace();
+	/*End of lineality space computation*/		
+	//gcAct->getCodim2Normals(*gcAct);
+	if(fAct->codim2Ptr==NULL)
+		gcAct->getExtremalRays(*gcAct);		
+	/* Make a copy of the facet list of first cone
+	   Since the operations getCodim2Normals and normalize affect the facets
+	   we must not memcpy them before these ops! */	
+	/*facet *codim2Act; codim2Act = NULL;			
+	facet *sl2Root;
+	facet *sl2Act;*/			
+	for(int ii=0;ii<this->numFacets;ii++)
+	{
+		//only copy flippable facets! NOTE: We do not need flipRing or any such information.
+		if(fAct->isFlippable==TRUE)
+		{
+			/*Using shallow copy here*/
+#ifdef SHALLOW
+			if( ii==0 || (ii>0 && SearchListAct==NULL) ) //1st facet may be non-flippable
+			{
+				if(SearchListRoot!=NULL) delete(SearchListRoot);
+				SearchListRoot = fAct->shallowCopy(*fAct);
+				SearchListAct = SearchListRoot;	//SearchListRoot is already 'new'ed at beginning of method!
+			}
+			else
+			{			
+				SearchListAct->next = fAct->shallowCopy(*fAct);
+				SearchListAct = SearchListAct->next;						
+			}
+			fAct=fAct->next;
+#else
+			/*End of shallow copy*/
+			int64vec *fNormal;
+			fNormal = fAct->getFacetNormal();
+			if( ii==0 || (ii>0 && SearchListAct==NULL) ) //1st facet may be non-flippable
+			{						
+				SearchListAct = SearchListRoot;	//SearchListRoot is already 'new'ed at beginning of method!
+			}
+			else
+			{			
+				SearchListAct->next = new facet();
+				SearchListAct = SearchListAct->next;						
+			}
+			SearchListAct->setFacetNormal(fNormal);
+			SearchListAct->setUCN(this->getUCN());
+			SearchListAct->numCodim2Facets=fAct->numCodim2Facets;
+			SearchListAct->isFlippable=TRUE;
+			//Copy int point as well
+			int64vec *ivIntPt;
+			ivIntPt = fAct->getInteriorPoint();
+			SearchListAct->setInteriorPoint(ivIntPt);
+			delete(ivIntPt);
+			//Copy codim2-facets
+			facet *codim2Act;
+			codim2Act = NULL;			
+			facet *sl2Root;
+			facet *sl2Act;			
+			codim2Act=fAct->codim2Ptr;
+			SearchListAct->codim2Ptr = new facet(2);
+			sl2Root = SearchListAct->codim2Ptr;
+			sl2Act = sl2Root;			
+			for(int jj=0;jj<fAct->numCodim2Facets;jj++)
+// 			for(int jj=0;jj<fAct->numRays-1;jj++)
+			{
+				int64vec *f2Normal;
+				f2Normal = codim2Act->getFacetNormal();
+				if(jj==0)
+				{						
+					sl2Act = sl2Root;
+					sl2Act->setFacetNormal(f2Normal);
+				}
+				else
+				{
+					sl2Act->next = new facet(2);
+					sl2Act = sl2Act->next;
+					sl2Act->setFacetNormal(f2Normal);
+				}
+				delete f2Normal;				
+				codim2Act = codim2Act->next;
+			}
+			fAct = fAct->next;
+			delete fNormal;
+#endif
+		}//if(fAct->isFlippable==TRUE)			
+		else {fAct = fAct->next;}
+	}//End of copying facets into SLA
+	
+	SearchListAct = SearchListRoot;	//Set to beginning of list
+	/*Make SearchList doubly linked*/
+#ifndef NDEBUG
+  #if SIZEOF_LONG==8
+	while(SearchListAct!=(facet*)0xfefefefefefefefe && SearchListAct!=NULL)
+	{
+		if(SearchListAct->next!=(facet*)0xfefefefefefefefe && SearchListAct->next!=NULL){
+  #elif SIZEOF_LONG!=8
+	while(SearchListAct!=(facet*)0xfefefefe)
+	{
+		if(SearchListAct->next!=(facet*)0xfefefefe){
+  #endif
+#else
+	while(SearchListAct!=NULL)
+	{
+		if(SearchListAct->next!=NULL){
+#endif
+			SearchListAct->next->prev = SearchListAct;					
+		}
+		SearchListAct = SearchListAct->next;
+	}
+	SearchListAct = SearchListRoot;	//Set to beginning of List
+	
+// 	fAct = gcAct->facetPtr;//???
+	gcAct->writeConeToFile(*gcAct);			
+	/*End of initialisation*/
+	
+	fAct = SearchListAct;
+	/*2nd step
+	  Choose a facet from SearchList, flip it and forget the previous cone
+	  We always choose the first facet from SearchList as facet to be flipped
+	*/	
+	while( (SearchListAct!=NULL))//&& counter<490)
+	{//NOTE See to it that the cone is only changed after ALL facets have been flipped!				
+		fAct = SearchListAct;		
+ 		while(fAct!=NULL)
+// 		while( (fAct->getUCN() == fAct->next->getUCN()) )		
+		{	//Since SLA should only contain flippables there should be no need to check for that			
+			gcAct->flip2(gcAct->gcBasis,fAct);
+			//NOTE rCopy needed?
+			ring rTmp=rCopy(fAct->flipRing);
+			rComplete(rTmp);
+			rChangeCurrRing(rTmp);
+			gcone *gcTmp = new gcone(*gcAct,*fAct);//copy constructor!
+			/* Now gcTmp->gcBasis and gcTmp->baseRing are set from fAct->flipGB and fAct->flipRing.
+			 * Since we come at most once across a given facet from gcAct->facetPtr we can delete them.
+			 * NOTE: Can this cause trouble with the destructor?
+			 * Answer: Yes it bloody well does!
+			 * However I'd like to delete this data here, since if we have a cone with many many facets it
+			 * should pay to get rid of the flipGB as soon as possible.
+			 * Destructor must be equipped with necessary checks.
+			*/
+ 			idDelete((ideal *)&fAct->flipGB);
+			rDelete(fAct->flipRing);			
+			gcTmp->getConeNormals(gcTmp->gcBasis/*, FALSE*/);
+// 			gcTmp->getCodim2Normals(*gcTmp);
+			gcTmp->getExtremalRays(*gcTmp);
+			//NOTE Order rays lex here
+			gcTmp->orderRays();			
+// 			//NOTE If flip2 is used we need to get an interior point of gcTmp
+// 			// and replace gcTmp->baseRing with an appropriate ring with only
+// 			// one weight
+// 			gcTmp->interiorPoint2();
+			gcTmp->replaceDouble_ringorder_a_ByASingleOne();
+			//gcTmp->ddFacets should not be needed anymore, so
+			dd_FreeMatrix(gcTmp->ddFacets);
+#ifndef NDEBUG
+// 			gcTmp->showFacets(1);
+#endif
+			/*add facets to SLA here*/
+#ifdef SHALLOW
+  #ifndef NDEBUG
+			printf("fActUCN before enq2: %i\n",fAct->getUCN());
+  #endif
+			facet *tmp;
+			tmp=gcTmp->enqueue2(SearchListRoot);
+  #ifndef NDEBUG
+			printf("\nheadUCN=%i\n",tmp->getUCN());
+			printf("fActUCN after enq2: %i\n",fAct->getUCN());
+  #endif
+			SearchListRoot=tmp;
+			//SearchListRoot=gcTmp->enqueue2/*NewFacets*/(SearchListRoot);
+#else 
+			SearchListRoot=gcTmp->enqueueNewFacets(SearchListRoot);
+#endif //ifdef SHALLOW
+// 			gcTmp->writeConeToFile(*gcTmp);
+ 			if(gfanHeuristic==1)
+ 			{
+				gcTmp->writeConeToFile(*gcTmp);
+ 				idDelete((ideal*)&gcTmp->gcBasis);//Whonder why?
+				rDelete(gcTmp->baseRing);
+ 			}			
+#ifndef NDEBUG
+			if(SearchListRoot!=NULL)
+				showSLA(*SearchListRoot);
+#endif			
+			rChangeCurrRing(gcAct->baseRing);
+			rDelete(rTmp);
+			//doubly linked for easier removal
+			gcTmp->prev = gcPtr;
+			gcPtr->next=gcTmp;
+			gcPtr=gcPtr->next;
+			//Cleverly disguised exit condition follows
+			if(fAct->getUCN() == fAct->next->getUCN())
+			{
+				printf("Switching UCN from %i to %i\n",fAct->getUCN(),fAct->next->getUCN());
+				fAct=fAct->next;				
+			}
+			else
+			{
+				//rDelete(gcAct->baseRing);
+// 				printf("break\n");
+				break;
+			}
+// 			fAct=fAct->next;
+		}//while( ( (fAct->next!=NULL) && (fAct->getUCN()==fAct->next->getUCN() ) ) );		
+		//Search for cone with smallest UCN
+#ifndef NDEBUG
+  #if SIZEOF_LONG==8	//64 bit
+		while(gcNext!=(gcone * const)0xfbfbfbfbfbfbfbfb && SearchListRoot!=NULL)
+  #elif SIZEOF_LONG == 4
+		while(gcNext!=(gcone * const)0xfbfbfbfb && SearchListRoot!=NULL)
+  #endif
+#endif
+#ifdef NDEBUG
+		while(gcNext!=NULL && SearchListRoot!=NULL)	
+#endif
+		{			
+			if( gcNext->getUCN() == SearchListRoot->getUCN() )
+			{
+				if(gfanHeuristic==0)
+				{
+					gcAct = gcNext;
+					//Seems better to not to use rCopy here
+// 					rAct=rCopy(gcAct->baseRing);
+					rAct=gcAct->baseRing;
+					rComplete(rAct);
+					rChangeCurrRing(rAct);						
+					break;
+				}
+				else if(gfanHeuristic==1)
+				{
+					gcone *gcDel;
+					gcDel = gcAct;					
+					gcAct = gcNext;
+					//Read st00f from file &
+					//implant the GB into gcAct
+					readConeFromFile(gcAct->getUCN(), gcAct);
+					//Kill the baseRing but ONLY if it is not the ring the computation started in!
+// 					if(gcDel->getUCN()!=1)//WTF!? This causes the Mandelbug in gcone::areEqual(facet, facet)
+// 						rDelete(gcDel->baseRing);
+// 					rAct=rCopy(gcAct->baseRing);
+					/*The ring change occurs in readConeFromFile, so as to 
+					assure that gcAct->gcBasis belongs to the right ring*/
+					rAct=gcAct->baseRing;
+					rComplete(rAct);
+					rChangeCurrRing(rAct);
+					break;
+				}				
+			}
+			else if(gcNext->getUCN() < SearchListRoot->getUCN() )
+			{
+				idDelete( (ideal*)&gcNext->gcBasis );				
+// 				rDelete(gcNext->baseRing);//TODO Why does this crash?
+			}
+			/*else
+			{
+				if(gfanHeuristic==1)
+				{
+					gcone *gcDel;
+					gcDel = gcNext;
+					if(gcDel->getUCN()!=1)
+						rDelete(gcDel->baseRing);
+				}					
+			}*/			
+ 			gcNext = gcNext->next;
+		}
+		UCNcounter++;
+		SearchListAct = SearchListRoot;		
+	}
+	printf("\nFound %i cones - terminating\n", counter);
+}//void noRevS(gcone &gc)	
+		
+		
+/** \brief Make a set of rational vectors into integers
+ *
+ * We compute the lcm of the denominators and multiply with this to get integer values.
+ * If the gcd of the nominators > 1 we divide by the gcd => primitive vector.
+ * Expects a new int64vec as 3rd parameter
+ * \param dd_MatrixPtr,int64vec
+ */
+void gcone::makeInt(const dd_MatrixPtr &M, const int line, int64vec &n)
+{			
+	mpz_t *denom = new mpz_t[this->numVars];
+	for(int ii=0;ii<this->numVars;ii++)
+	{
+		mpz_init_set_str(denom[ii],"0",10);
+	}
+		
+	mpz_t kgV,tmp;
+	mpz_init(kgV);
+	mpz_init(tmp);
+			
+	for (int ii=0;ii<(M->colsize)-1;ii++)
+	{
+		mpz_t z;
+		mpz_init(z);
+		mpq_get_den(z,M->matrix[line-1][ii+1]);
+		mpz_set( denom[ii], z);
+		mpz_clear(z);				
+	}
+						
+	/*Compute lcm of the denominators*/
+	mpz_set(tmp,denom[0]);
+	for (int ii=0;ii<(M->colsize)-1;ii++)
+	{
+		mpz_lcm(kgV,tmp,denom[ii]);
+		mpz_set(tmp,kgV);				
+	}
+	mpz_clear(tmp);	
+	/*Multiply the nominators by kgV*/
+	mpq_t qkgV,res;
+	mpq_init(qkgV);
+	mpq_set_str(qkgV,"1",10);
+	mpq_canonicalize(qkgV);
+			
+	mpq_init(res);
+	mpq_set_str(res,"1",10);
+	mpq_canonicalize(res);
+			
+	mpq_set_num(qkgV,kgV);
+			
+//	mpq_canonicalize(qkgV);
+// 	int ggT=1;
+	for (int ii=0;ii<(M->colsize)-1;ii++)
+	{
+		mpq_mul(res,qkgV,M->matrix[line-1][ii+1]);
+		n[ii]=(int64)mpz_get_d(mpq_numref(res));
+// 		ggT=int64gcd(ggT,n[ii]);
+	}
+	int64 ggT=n[0];
+	for(int ii=0;ii<this->numVars;ii++)
+		ggT=int64gcd(ggT,n[ii]);	
+	//Normalisation
+	if(ggT>1)
+	{
+		for(int ii=0;ii<this->numVars;ii++)
+			n[ii] /= ggT;
+	}
+	delete [] denom;
+	mpz_clear(kgV);
+	mpq_clear(qkgV); mpq_clear(res);			
+			
+}
+/**
+ * For all codim-2-facets we compute the gcd of the components of the facet normal and 
+ * divide it out. Thus we get a normalized representation of each
+ * (codim-2)-facet normal, i.e. a primitive vector
+ * Actually we now also normalize the facet normals.
+ */
+// void gcone::normalize()
+// {
+// 	int *ggT = new int;
+// 		*ggT=1;
+// 	facet *fAct;
+// 	facet *codim2Act;
+// 	fAct = this->facetPtr;
+// 	codim2Act = fAct->codim2Ptr;
+// 	while(fAct!=NULL)
+// 	{
+// 		int64vec *fNormal;
+// 		fNormal = fAct->getFacetNormal();
+// 		int *ggT = new int;
+// 		*ggT=1;
+// 		for(int ii=0;ii<this->numVars;ii++)
+// 		{
+// 			*ggT=intgcd((*ggT),(*fNormal)[ii]);
+// 		}
+// 		if(*ggT>1)//We only need to do this if the ggT is non-trivial
+// 		{
+// // 			int64vec *fCopy = fAct->getFacetNormal();
+// 			for(int ii=0;ii<this->numVars;ii++)
+// 				(*fNormal)[ii] = ((*fNormal)[ii])/(*ggT);
+// 			fAct->setFacetNormal(fNormal);
+// 		}		
+// 		delete fNormal;
+// 		delete ggT;
+// 		/*And now for the codim2*/
+// 		while(codim2Act!=NULL)
+// 		{				
+// 			int64vec *n;
+// 			n=codim2Act->getFacetNormal();
+// 			int *ggT=new int;
+// 			*ggT=1;
+// 			for(int ii=0;ii<this->numVars;ii++)
+// 			{
+// 				*ggT = intgcd((*ggT),(*n)[ii]);
+// 			}
+// 			if(*ggT>1)
+// 			{
+// 				for(int ii=0;ii<this->numVars;ii++)
+// 				{
+// 					(*n)[ii] = ((*n)[ii])/(*ggT);
+// 				}
+// 				codim2Act->setFacetNormal(n);
+// 			}
+// 			codim2Act = codim2Act->next;
+// 			delete n;
+// 			delete ggT;
+// 		}
+// 		fAct = fAct->next;
+// 	}
+// }
+
+/** \brief Enqueue new facets into the searchlist 
+ * The searchlist (SLA for short) is implemented as a FIFO
+ * Checks are done as follows:
+ * 1) Check facet fAct against all facets in SLA for parallelity. If it is not parallel to any one add it.
+ * 2) If it is parallel compare the codim2 facets. If they coincide the facets are equal and we delete the 
+ *	facet from SLA and do not add fAct.
+ * It may very well happen, that SLA=\f$ \emptyset \f$ but we do not have checked all fActs yet. In this case we
+ * can be sure, that none of the facets that are still there already were in SLA once, so we just dump them into SLA.
+ * Takes ptr to search list root
+ * Returns a pointer to new first element of Searchlist
+ */
+facet * gcone::enqueueNewFacets(facet *f)
+{
+#ifdef gfanp
+	timeval start, end;
+	gettimeofday(&start, 0);
+#endif
+	facet *slHead;
+	slHead = f;
+	facet *slAct;	//called with f=SearchListRoot
+	slAct = f;
+	facet *slEnd;	//Pointer to end of SLA
+	slEnd = f;
+// 	facet *slEndStatic;	//marks the end before a new facet is added		
+	facet *fAct;
+	fAct = this->facetPtr;
+	facet *codim2Act;
+	codim2Act = this->facetPtr->codim2Ptr;
+	facet *sl2Act;
+	sl2Act = f->codim2Ptr;
+	/** Pointer to a facet that will be deleted */
+	volatile facet *deleteMarker;
+	deleteMarker = NULL;
+			
+	/** \brief  Flag to mark a facet that might be added
+	 * The following case may occur:
+	 * A facet fAct is found to be parallel but not equal to the current facet slAct from SLA.
+	 * This does however not mean that there does not exist a facet behind the current slAct that is actually equal
+	 * to fAct. In this case we set the boolean flag maybe to TRUE. If we encounter an equality lateron, it is reset to
+	 * FALSE and the according slAct is deleted. 
+	 * If slAct->next==NULL AND maybe==TRUE we know, that fAct must be added
+	 */
+
+	/**A facet was removed, lengthOfSearchlist-- thus we must not rely on 
+	 * if(notParallelCtr==lengthOfSearchList) but rather
+	 * if( (notParallelCtr==lengthOfSearchList && removalOccured==FALSE)
+	 */
+	volatile bool removalOccured=FALSE;
+	while(slEnd->next!=NULL)
+	{
+		slEnd=slEnd->next;
+	}
+	/*1st step: compare facetNormals*/			
+	while(fAct!=NULL)
+	{						
+		if(fAct->isFlippable==TRUE)
+		{
+			int64vec *fNormal=NULL;
+			fNormal=fAct->getFacetNormal();			
+			slAct = slHead;
+			/*If slAct==NULL and fAct!=NULL 
+			we just copy all remaining facets into SLA*/
+			if(slAct==NULL)
+			{
+				facet *fCopy;
+				fCopy = fAct;
+				while(fCopy!=NULL)
+				{
+					if(fCopy->isFlippable==TRUE)//We must assure fCopy is also flippable
+					{
+						if(slAct==NULL)
+						{
+							slAct = new facet(*fCopy/*,TRUE*/);//copy constructor
+							slHead = slAct;								
+						}
+						else
+						{
+							slAct->next = new facet(*fCopy/*,TRUE*/);
+							slAct = slAct->next;
+						}
+					}
+					fCopy = fCopy->next;
+				}
+				break;//Where does this lead to?
+			}
+			/*End of dumping into SLA*/
+			while(slAct!=NULL)
+			{
+				int64vec *slNormal=NULL;
+				removalOccured=FALSE;
+				slNormal = slAct->getFacetNormal();
+#ifndef NDEBUG
+				printf("Checking facet (");fNormal->show(1,1);printf(") against (");slNormal->show(1,1);printf(")\n");
+#endif				
+// 				if( (areEqual(fAct,slAct) && (!areEqual2(fAct,slAct)) ))
+// 					exit(-1);
+ 				if(areEqual2(fAct,slAct))
+				{					
+					deleteMarker = slAct;
+					if(slAct==slHead)
+					{						
+						slHead = slAct->next;						
+						if(slHead!=NULL)
+							slHead->prev = NULL;
+					}
+					else if (slAct==slEnd)
+					{
+						slEnd=slEnd->prev;
+						slEnd->next = NULL;
+					}								
+					else
+					{
+						slAct->prev->next = slAct->next;
+						slAct->next->prev = slAct->prev;
+					}
+					removalOccured=TRUE;
+					gcone::lengthOfSearchList--;
+					if(deleteMarker!=NULL)
+					{
+// 						delete deleteMarker;
+// 						deleteMarker=NULL;
+					}
+#ifndef NDEBUG
+					printf("Removing (");fNormal->show(1,1);printf(") from list\n");
+#endif
+					delete slNormal;
+					break;//leave the while loop, since we found fAct=slAct thus delete slAct and do not add fAct
+				}
+				slAct = slAct->next;
+				/* NOTE The following lines must not be here but rather called inside the if-block above.
+				Otherwise results get crappy. Unfortunately there are two slAct=slAct->next calls now,
+				(not nice!) but since they are in seperate branches of the if-statement there should not
+				be a way it gets called twice thus ommiting one facet:
+				slAct = slAct->next;*/
+				if(deleteMarker!=NULL)
+				{						
+//  					delete deleteMarker;
+//  					deleteMarker=NULL;
+				}
+				delete slNormal;
+						//if slAct was marked as to be deleted, delete it here!
+			}//while(slAct!=NULL)
+			if(removalOccured==FALSE)
+			{
+#ifndef NDEBUG
+// 				cout << "Adding facet (";fNormal->show(1,0);cout << ") to SLA " << endl;
+#endif
+				//Add fAct to SLA
+				facet *marker;
+				marker = slEnd;
+				facet *f2Act;
+				f2Act = fAct->codim2Ptr;
+
+				slEnd->next = new facet();
+				slEnd = slEnd->next;//Update slEnd
+				facet *slEndCodim2Root;
+				facet *slEndCodim2Act;
+				slEndCodim2Root = slEnd->codim2Ptr;
+				slEndCodim2Act = slEndCodim2Root;
+								
+				slEnd->setUCN(this->getUCN());
+				slEnd->isFlippable = TRUE;
+				slEnd->setFacetNormal(fNormal);
+				//NOTE Add interior point here
+				//This is ugly but needed for flip2
+				//Better: have slEnd->interiorPoint point to fAct->interiorPoint
+				//NOTE Only reference -> c.f. copy constructor
+				//slEnd->setInteriorPoint(fAct->getInteriorPoint());
+				slEnd->interiorPoint = fAct->interiorPoint;
+				slEnd->prev = marker;
+				//Copy codim2-facets
+				//int64vec *f2Normal=new int64vec(this->numVars);
+				while(f2Act!=NULL)
+				{
+					int64vec *f2Normal;
+					f2Normal=f2Act->getFacetNormal();
+					if(slEndCodim2Root==NULL)
+					{
+						slEndCodim2Root = new facet(2);
+						slEnd->codim2Ptr = slEndCodim2Root;			
+						slEndCodim2Root->setFacetNormal(f2Normal);
+						slEndCodim2Act = slEndCodim2Root;
+					}
+					else					
+					{
+						slEndCodim2Act->next = new facet(2);
+						slEndCodim2Act = slEndCodim2Act->next;
+						slEndCodim2Act->setFacetNormal(f2Normal);
+					}
+					f2Act = f2Act->next;
+					delete f2Normal;
+				}
+				gcone::lengthOfSearchList++;							
+			}//if( (notParallelCtr==lengthOfSearchList && removalOccured==FALSE) ||
+			fAct = fAct->next;
+ 			delete fNormal;
+//  			delete slNormal;
+		}//if(fAct->isFlippable==TRUE)
+		else
+		{
+			fAct = fAct->next;
+		}
+		if(gcone::maxSize<gcone::lengthOfSearchList)
+			gcone::maxSize= gcone::lengthOfSearchList;
+	}//while(fAct!=NULL)
+#ifdef gfanp
+	gettimeofday(&end, 0);
+	time_enqueue += (end.tv_sec - start.tv_sec + 1e-6*(end.tv_usec - start.tv_usec));
+#endif						
+	return slHead;
+}//addC2N
+
+/** Enqueuing using shallow copies*/
+facet * gcone::enqueue2(facet *f)
+{
+	assert(f!=NULL);
+#ifdef gfanp
+	timeval start, end;
+	gettimeofday(&start, 0);
+#endif
+	facet *slHead;
+	slHead = f;
+	facet *slAct;	//called with f=SearchListRoot
+	slAct = f;
+	static facet *slEnd;	//Pointer to end of SLA
+	if(slEnd==NULL)
+		slEnd = f;
+	
+	facet *fAct;
+	fAct = this->facetPtr;//New facets to compare
+	facet *codim2Act;
+	codim2Act = this->facetPtr->codim2Ptr;
+	volatile bool removalOccured=FALSE;
+	while(slEnd->next!=NULL)
+	{
+		slEnd=slEnd->next;
+	}	
+	while(fAct!=NULL)
+	{
+		if(fAct->isFlippable)
+		{
+			facet *fDeleteMarker=NULL;
+			slAct = slHead;
+			if(slAct==NULL)
+			{
+				printf("Zero length SLA\n");
+				facet *fCopy;
+				fCopy = fAct;				
+				while(fCopy!=NULL)
+				{
+					if(fCopy->isFlippable==TRUE)//We must assure fCopy is also flippable
+					{
+						if(slAct==NULL)
+						{
+							slAct = slAct->shallowCopy(*fCopy);//shallow copy constructor
+							slHead = slAct;								
+						}
+						else
+						{
+							slAct->next = slAct->shallowCopy(*fCopy);
+							slAct = slAct->next;
+						}
+					}
+					fCopy = fCopy->next;
+				}
+				break;	//WTF?
+			}
+			/*Comparison starts here*/
+			while(slAct!=NULL)
+			{
+				removalOccured=FALSE;
+#ifndef NDEBUG
+	printf("Checking facet (");fAct->fNormal->show(1,1);printf(") against (");slAct->fNormal->show(1,1);printf(")\n");
+#endif	
+				if(areEqual2(fAct,slAct))
+				{
+					fDeleteMarker=slAct;
+					if(slAct==slHead)
+					{
+// 						fDeleteMarker=slHead;
+// 						printf("headUCN at enq=%i\n",slHead->getUCN());
+						slHead = slAct->next;						
+// 						printf("headUCN at enq=%i\n",slHead->getUCN());
+						if(slHead!=NULL)
+						{
+							slHead->prev = NULL;
+						}
+						fDeleteMarker->shallowDelete();
+ 						//delete fDeleteMarker;//NOTE this messes up fAct in noRevS!
+// 						printf("headUCN at enq=%i\n",slHead->getUCN());
+					}
+					else if (slAct==slEnd)
+					{
+						slEnd=slEnd->prev;
+						slEnd->next = NULL;
+						fDeleteMarker->shallowDelete();
+						delete(fDeleteMarker);
+					}								
+					else
+					{
+						slAct->prev->next = slAct->next;
+						slAct->next->prev = slAct->prev;
+						fDeleteMarker->shallowDelete();
+						delete(fDeleteMarker);
+					}
+					removalOccured=TRUE;
+					gcone::lengthOfSearchList--;
+#ifndef NDEBUG
+printf("Removing (");fAct->fNormal->show(1,1);printf(") from list\n");
+#endif
+					break;//leave the while loop, since we found fAct=slAct thus delete slAct and do not add fAct
+				}
+				slAct = slAct->next;				
+			}//while(slAct!=NULL)
+			if(removalOccured==FALSE)
+			{
+				facet *marker=slEnd;
+				slEnd->next = fAct->shallowCopy(*fAct);
+				slEnd = slEnd->next;
+				slEnd->prev=marker;
+				gcone::lengthOfSearchList++;
+			}
+			fAct = fAct->next;
+// 			if(fDeleteMarker!=NULL)
+// 			{
+// 				fDeleteMarker->shallowDelete();
+// 				delete(fDeleteMarker);
+// 				fDeleteMarker=NULL;
+// 			}
+		}
+		else
+			fAct = fAct->next;
+	}//while(fAct!=NULL)
+	
+#ifdef gfanp
+	gettimeofday(&end, 0);
+	time_enqueue += (end.tv_sec - start.tv_sec + 1e-6*(end.tv_usec - start.tv_usec));
+#endif	
+// 	printf("headUCN at enq=%i\n",slHead->getUCN());
+	return slHead;
+}
+
+/** 
+* During flip2 every gc->baseRing gets two ringorder_a
+* To avoid having an awful lot of those in the end we endow
+* gc->baseRing by a suitable ring with (a,dp,C) and copy all
+* necessary stuff over
+* But first we will try to just do an inplace exchange and copying only the
+* gc->gcBasis
+*/
+void gcone::replaceDouble_ringorder_a_ByASingleOne()
+{
+	ring srcRing=currRing;
+	ring replacementRing=rCopy0((ring)this->baseRing);
+	/*We assume we have (a(),a(),dp) here*/
+	omFree(replacementRing->order);
+	replacementRing->order =(int *)omAlloc0(4*sizeof(int/*64*/));
+	omFree(replacementRing->block0);
+	replacementRing->block0=(int *)omAlloc0(4*sizeof(int/*64*/));
+	omFree(replacementRing->block1);
+	replacementRing->block1=(int *)omAlloc0(4*sizeof(int/*64*/));
+	omfree(replacementRing->wvhdl);
+	replacementRing->wvhdl =(int **)omAlloc0(4*sizeof(int/*64*/**));
+			
+	replacementRing->order[0]=ringorder_a/*64*/;
+	replacementRing->block0[0]=1;
+	replacementRing->block1[0]=replacementRing->N;
+		
+	replacementRing->order[1]=ringorder_dp;
+	replacementRing->block0[1]=1;
+	replacementRing->block1[1]=replacementRing->N;
+	
+	replacementRing->order[2]=ringorder_C;
+
+	int64vec *ivw = this->getIntPoint(TRUE);//returns a reference
+// 	assert(this->ivIntPt);	
+	int length=ivw->length();	
+	int/*64*/ *A=(int/*64*/ *)omAlloc0(length*sizeof(int/*64*/));
+	for (int jj=0;jj<length;jj++)
+	{
+		A[jj]=(*ivw)[jj];
+		if((*ivw)[jj]>=INT_MAX) WarnS("A[jj] exceeds INT_MAX in gcone::replaceDouble_ringorder_a_ByASingleOne!\n");
+	}	
+	//delete ivw; //Not needed if this->getIntPoint(TRUE)
+	replacementRing->wvhdl[0]=(int *)A;
+	replacementRing->block1[0]=length;
+	/*Finish*/
+	rComplete(replacementRing);
+	rChangeCurrRing(replacementRing);
+	ideal temporaryGroebnerBasis=idrCopyR(this->gcBasis,this->baseRing);
+	rDelete(this->baseRing);
+	this->baseRing=rCopy(replacementRing);
+	this->gcBasis=idCopy(temporaryGroebnerBasis);	
+	/*And back to where we came from*/
+	rChangeCurrRing(srcRing);
+	idDelete( (ideal*)&temporaryGroebnerBasis );
+	rDelete(replacementRing);	
+}
+
+/** \brief Compute the gcd of two ints
+ */
+static int64 int64gcd(const int64 &a, const int64 &b)
+{
+	int64 r, p=a, q=b;
+	if(p < 0)
+		p = -p;
+	if(q < 0)
+		q = -q;
+	while(q != 0)
+	{
+		r = p % q;
+		p = q;
+		q = r;
+	}
+	return p;
+}
+	
+static int intgcd(const int &a, const int &b)
+{
+	int r, p=a, q=b;
+	if(p < 0)
+		p = -p;
+	if(q < 0)
+		q = -q;
+	while(q != 0)
+	{
+		r = p % q;
+		p = q;
+		q = r;
+	}
+	return p;
+}
+		
+/** \brief Construct a dd_MatrixPtr from a cone's list of facets
+ * NO LONGER USED
+ */
+// inline dd_MatrixPtr gcone::facets2Matrix(const gcone &gc)
+// {
+// 	facet *fAct;
+// 	fAct = gc.facetPtr;
+// 	
+// 	dd_MatrixPtr M;
+// 	dd_rowrange ddrows;
+// 	dd_colrange ddcols;
+// 	ddcols=(this->numVars)+1;
+// 	ddrows=this->numFacets;
+// 	dd_NumberType numb = dd_Integer;
+// 	M=dd_CreateMatrix(ddrows,ddcols);			
+// 			
+// 	int jj=0;
+// 	
+// 	while(fAct!=NULL)
+// 	{
+// 		int64vec *comp;
+// 		comp = fAct->getFacetNormal();
+// 		for(int ii=0;ii<this->numVars;ii++)
+// 		{
+// 			dd_set_si(M->matrix[jj][ii+1],(*comp)[ii]);
+// 		}
+// 		jj++;
+// 		delete comp;
+// 		fAct=fAct->next;				
+// 	}			
+// 	return M;
+// }
+		
+/** \brief Write information about a cone into a file on disk
+ *
+ * This methods writes the information needed for the "second" method into a file.
+ * The file's is divided in sections containing information on
+ * 1) the ring
+ * 2) the cone's Groebner Basis
+ * 3) the cone's facets
+ * Each line contains exactly one date
+ * Each section starts with its name in CAPITALS
+ */
+void gcone::writeConeToFile(const gcone &gc, bool usingIntPoints)
+{
+	int UCN=gc.UCN;
+	stringstream ss;
+	ss << UCN;
+	string UCNstr = ss.str();		
+			
+ 	string prefix="/tmp/Singular/cone";
+// 	string prefix="./";	//crude hack -> run tests in separate directories
+	string suffix=".sg";
+	string filename;
+	filename.append(prefix);
+	filename.append(UCNstr);
+	filename.append(suffix);
+		
+// 	int thisPID = getpid();
+// 	ss << thisPID;
+// 	string strPID = ss.str();
+// 	string prefix="./";
+						
+	ofstream gcOutputFile(filename.c_str());
+	assert(gcOutputFile);
+	facet *fAct;
+	fAct = gc.facetPtr;			
+	facet *f2Act;
+	f2Act=fAct->codim2Ptr;
+	
+	char *ringString = rString(gc.baseRing);
+			
+	if (!gcOutputFile)
+	{
+		WerrorS("Error opening file for writing in writeConeToFile\n");
+	}
+	else
+	{	
+		gcOutputFile << "UCN" << endl;
+		gcOutputFile << this->UCN << endl;
+		gcOutputFile << "RING" << endl;	
+		gcOutputFile << ringString << endl;
+		gcOutputFile << "GCBASISLENGTH" << endl;
+		gcOutputFile << IDELEMS(gc.gcBasis) << endl;			
+		//Write this->gcBasis into file
+		gcOutputFile << "GCBASIS" << endl;				
+		for (int ii=0;ii<IDELEMS(gc.gcBasis);ii++)
+		{					
+			gcOutputFile << p_String((poly)gc.gcBasis->m[ii],gc.baseRing) << endl;
+		}				
+					
+		gcOutputFile << "FACETS" << endl;								
+		
+		while(fAct!=NULL)
+		{	
+			const int64vec *iv=fAct->getRef2FacetNormal();
+// 			iv=fAct->getRef2FacetNormal();//->getFacetNormal();
+			f2Act=fAct->codim2Ptr;
+			for (int ii=0;ii<iv->length();ii++)
+			{
+// 				if (ii<iv->length()-1)
+// 					gcOutputFile << (*iv)[ii] << ",";
+// 				else
+// 					gcOutputFile << (*iv)[ii] << " ";
+				gcOutputFile << (*iv)[ii];
+				(ii<iv->length()-1) ? gcOutputFile << "," : gcOutputFile << " ";
+			}
+			//delete iv;
+			while(f2Act!=NULL)
+			{
+				const int64vec *iv2;
+				iv2=f2Act->getRef2FacetNormal();
+				for(int jj=0;jj<iv2->length();jj++)
+				{
+// 					if (jj<iv2->length()-1)
+// 						gcOutputFile << (*iv2)[jj] << ",";
+// 					else
+// 						gcOutputFile << (*iv2)[jj] << " ";
+					gcOutputFile << (*iv2)[jj];
+					(jj<iv2->length()-1) ? gcOutputFile << "," : gcOutputFile << " ";
+				}
+				f2Act = f2Act->next;
+			}
+			gcOutputFile << endl;
+			fAct=fAct->next;
+		}			
+	gcOutputFile.close();
+	}
+	delete [] ringString;
+			
+}//writeConeToFile(gcone const &gc)
+		
+/** \brief Reads a cone from a file identified by its number
+* ||depending on whether flip or flip2 is used, switch the flag flipFlag
+* ||defaults to 0 => flip
+* ||1 => flip2
+*/
+void gcone::readConeFromFile(int UCN, gcone *gc)
+{
+	//int UCN=gc.UCN;
+	stringstream ss;
+	ss << UCN;
+	string UCNstr = ss.str();
+	int gcBasisLength=0;
+	size_t found;	//used for find_first_(not)_of
+
+	string prefix="/tmp/Singular/cone";
+	string suffix=".sg";
+	string filename;
+	filename.append(prefix);
+	filename.append(UCNstr);
+	filename.append(suffix);
+					
+	ifstream gcInputFile(filename.c_str(), ifstream::in);
+	
+	ring saveRing=currRing;	
+	//Comment the following if you uncomment the if(line=="RING") part below
+//  	rChangeCurrRing(gc->baseRing);
+	
+	while( !gcInputFile.eof() )
+	{
+		string line;
+		getline(gcInputFile,line);
+		if(line=="RING")
+		{
+			getline(gcInputFile,line);
+			found = line.find("a(");
+			line.erase(0,found+2);
+			string strweight;
+			strweight=line.substr(0,line.find_first_of(")"));
+						
+			int64vec *iv=new int64vec(this->numVars);// 			
+			for(int ii=0;ii<this->numVars;ii++)
+			{
+				string weight;
+				weight=line.substr(0,line.find_first_of(",)"));
+				char *w=new char[weight.size()+1];
+				strcpy(w,weight.c_str());
+				(*iv)[ii]=atol(w/*weight.c_str()*/);//Better to long. Weight bound in Singular:2147483647
+				delete[] w;
+				line.erase(0,line.find_first_of(",)")+1);
+			}
+			found = line.find("a(");
+			
+			ring newRing;
+			if(currRing->order[0]!=ringorder_a/*64*/)
+			{
+					newRing=rCopyAndAddWeight(currRing,iv);
+			}
+			else
+			{ 	
+					newRing=rCopy0(currRing);
+					int length=this->numVars;
+					int *A=(int *)omAlloc0(length*sizeof(int));
+					for(int jj=0;jj<length;jj++)
+					{
+						A[jj]=(*iv)[jj];
+					}
+					omFree(newRing->wvhdl[0]);
+					newRing->wvhdl[0]=(int*)A;
+					newRing->block1[0]=length;
+			}
+			delete iv;
+ 			rComplete(newRing);
+			gc->baseRing=rCopy(newRing);
+			rDelete(newRing);
+			rComplete(gc->baseRing);
+			if(currRing!=gc->baseRing)
+				rChangeCurrRing(gc->baseRing);
+		}
+		
+		if(line=="GCBASISLENGTH")
+		{
+			string strGcBasisLength;
+			getline(gcInputFile, line);
+			strGcBasisLength = line;
+			char *s=new char[strGcBasisLength.size()+1];
+			strcpy(s,strGcBasisLength.c_str());
+			int size=atoi(s/*strGcBasisLength.c_str()*/);
+			delete[] s;
+			gcBasisLength=size;		
+			gc->gcBasis=idInit(size,1);
+		}
+		if(line=="GCBASIS")
+		{
+			for(int jj=0;jj<gcBasisLength;jj++)
+			{
+				getline(gcInputFile,line);
+				//magically convert strings into polynomials
+				//polys.cc:p_Read
+				//check until first occurance of + or -
+				//data or c_str	
+// 				poly strPoly;//=pInit();//Ought to be inside the while loop, but that will eat your memory
+				poly resPoly=pInit();	//The poly to be read in		
+				while(!line.empty())
+				{
+					poly strPoly;//=pInit();
+					
+					string strMonom, strCoeff, strCoeffNom, strCoeffDenom;
+					bool hasCoeffInQ = FALSE;	//does the polynomial have rational coeff?
+					bool hasNegCoeff = FALSE;	//or a negative one?
+					found = line.find_first_of("+-");	//get the first monomial
+					string tmp;
+					tmp=line[found];
+// 					if(found!=0 && (tmp.compare("-")==0) )
+// 						hasNegCoeff = TRUE;	//We have a coeff < 0
+					if(found==0)
+					{
+						if(tmp.compare("-")==0)
+							hasNegCoeff = TRUE;
+						line.erase(0,1);	//remove leading + or -
+						found = line.find_first_of("+-");	//adjust found
+					}
+					strMonom = line.substr(0,found);
+					line.erase(0,found);
+					number nCoeff=nInit(1);
+					number nCoeffNom=nInit(1);
+					number nCoeffDenom=nInit(1);
+					found = strMonom.find_first_of("/");
+					if(found!=string::npos)	//i.e. "/" exists in strMonom
+					{
+						hasCoeffInQ = TRUE;
+						strCoeffNom=strMonom.substr(0,found);						
+						strCoeffDenom=strMonom.substr(found+1,strMonom.find_first_not_of("1234567890",found+1));
+						strMonom.erase(0,found);
+						strMonom.erase(0,strMonom.find_first_not_of("1234567890/"));	
+						char *Nom=new char[strCoeffNom.size()+1];
+						char *Denom=new char[strCoeffDenom.size()+1];
+						strcpy(Nom,strCoeffNom.c_str());
+						strcpy(Denom,strCoeffDenom.c_str());		
+						nRead(Nom/*strCoeffNom.c_str()*/, &nCoeffNom);
+						nRead(Denom/*strCoeffDenom.c_str()*/, &nCoeffDenom);
+						delete[] Nom;
+						delete[] Denom;
+					}
+					else
+					{
+						found = strMonom.find_first_not_of("1234567890");
+						strCoeff = strMonom.substr(0,found);						
+						if(!strCoeff.empty())
+						{
+							char *coeff = new char[strCoeff.size()+1];
+							strcpy(coeff, strCoeff.c_str());
+ 							nRead(coeff/*strCoeff.c_str()*/,&nCoeff);
+							delete[] coeff;
+						}
+					}
+					char* monom = new char[strMonom.size()+1];
+					strcpy(monom, strMonom.c_str());						
+					p_Read(monom,strPoly,currRing);	//strPoly:=monom
+					delete[] monom;	
+					switch (hasCoeffInQ)
+					{
+						case TRUE:
+							if(hasNegCoeff)
+								nCoeffNom=nNeg(nCoeffNom);
+							pSetCoeff(strPoly, nDiv(nCoeffNom, nCoeffDenom));
+							break;
+						case FALSE:
+							if(hasNegCoeff)
+								nCoeff=nNeg(nCoeff);							
+							if(!nIsOne(nCoeff))
+							{
+								pSetCoeff(strPoly, nCoeff );
+							}
+							break;
+					}
+						//pSetCoeff(strPoly, (number) intCoeff);//Why is this set to zero instead of 1???
+					if(pIsConstantComp(resPoly))
+					{
+						resPoly=pCopy(strPoly);
+						pDelete(&strPoly);
+					}
+					else
+					{
+// 						poly tmp=pAdd(pCopy(resPoly),strPoly);//foo is destroyed
+// 						pDelete(&resPoly);
+// 						resPoly=tmp;
+// 						pDelete(&tmp);
+						resPoly=pAdd(resPoly,strPoly);//pAdd = p_Add_q, destroys args
+					}
+					/*if(nCoeff!=NULL)					
+						nDelete(&nCoeff);*/ //NOTE This may cause a crash on certain examples...
+					nDelete(&nCoeffNom);
+					nDelete(&nCoeffDenom);
+				}//while(!line.empty())			
+				gc->gcBasis->m[jj]=pCopy(resPoly);
+				pDelete(&resPoly);	//reset
+			}
+// 			break;
+		}//if(line=="GCBASIS")	
+		if(line=="FACETS")
+		{
+			facet *fAct=gc->facetPtr;
+			while(fAct!=NULL)
+			{
+				getline(gcInputFile,line);
+				found = line.find("\t");
+				string normalString=line.substr(0,found);
+				int64vec *fN = new int64vec(this->numVars);
+				for(int ii=0;ii<this->numVars;ii++)
+				{
+					string component;
+					found = normalString.find(",");
+					component=normalString.substr(0,found);
+					char *sComp = new char[component.size()+1];
+					strcpy(sComp,component.c_str());
+					(*fN)[ii]=atol(sComp/*component.c_str()*/);
+					delete[] sComp;
+					normalString.erase(0,found+1);
+				}
+				/*Only the following line needs to be commented out if you decide not to delete fNormals*/
+// 				fAct->setFacetNormal(fN);
+				delete(fN);
+				fAct = fAct->next;	//Booh, this is ugly
+			}			
+			break; //NOTE Must always be in the last if-block!
+		}
+	}//while(!gcInputFile.eof())	
+	gcInputFile.close();
+	rChangeCurrRing(saveRing);
+}
+	
+
+/** \brief Sort the rays of a facet lexicographically
+*/
+// void gcone::sortRays(gcone *gc)
+// {
+// 	facet *fAct;
+// 	fAct = this->facetPtr->codim2Ptr;
+// 	while(fAct->next!=NULL)
+// 	{
+// 		if(fAct->fNormal->compare(fAct->fNormal->next)==-1
+// 	}
+// }
+
+/** \brief Gather the output
+* List of lists
+* If heuristic==1 readConeFromFile() is called once more on every cone. This may slow down the computation but it also
+* allows us to rDelete(gcDel->baseRing) and the such in gcone::noRevS.
+*\param *gc Pointer to gcone, preferably gcRoot ;-)
+*\param n the number of cones as determined by gcRoot->getCounter()
+*
+*/
+lists lprepareResult(gcone *gc, const int n)
+{
+	gcone *gcAct;
+	gcAct = gc;	
+	facet *fAct;
+	fAct = gc->facetPtr;
+	
+	lists res=(lists)omAllocBin(slists_bin);
+	res->Init(n);	//initialize to store n cones
+	for(int ii=0;ii<n;ii++)
+	{
+		if(gfanHeuristic==1)// && gcAct->getUCN()>1)
+		{
+			gcAct->readConeFromFile(gcAct->getUCN(),gcAct);	
+// 			rChangeCurrRing(gcAct->getBaseRing());//NOTE memleak?
+		}
+		rChangeCurrRing(gcAct->getRef2BaseRing());	
+		res->m[ii].rtyp=LIST_CMD;
+		lists l=(lists)omAllocBin(slists_bin);
+		l->Init(6);
+		l->m[0].rtyp=INT_CMD;
+		l->m[0].data=(void*)gcAct->getUCN();
+		l->m[1].rtyp=IDEAL_CMD;
+		/*The following is necessary for leaves in the tree of cones
+		* Since we don't use them in the computation and gcBasis is 
+		* set to (poly)NULL in noRevS we need to get this back here.
+		*/
+// 		if(gcAct->gcBasis->m[0]==(poly)NULL)
+// 		if(gfanHeuristic==1 && gcAct->getUCN()>1)
+// 			gcAct->readConeFromFile(gcAct->getUCN(),gcAct);
+// 		ring saveRing=currRing;
+// 		ring tmpRing=gcAct->getBaseRing;
+// 		rChangeCurrRing(tmpRing);
+// 		l->m[1].data=(void*)idrCopyR_NoSort(gcAct->gcBasis,gcAct->getBaseRing());
+// 		l->m[1].data=(void*)idrCopyR(gcAct->gcBasis,gcAct->getBaseRing());//NOTE memleak?
+		l->m[1].data=(void*)idrCopyR(gcAct->gcBasis,gcAct->getRef2BaseRing());
+// 		rChangeCurrRing(saveRing);
+
+		l->m[2].rtyp=INTVEC_CMD;
+		int64vec iv=(gcAct->f2M(gcAct,gcAct->facetPtr));//NOTE memleak?
+		l->m[2].data=(void*)iv64Copy(&iv);
+		
+		l->m[3].rtyp=LIST_CMD;
+			lists lCodim2List = (lists)omAllocBin(slists_bin);
+			lCodim2List->Init(gcAct->numFacets); 
+			fAct = gcAct->facetPtr;//fAct->codim2Ptr;
+			int jj=0;
+			while(fAct!=NULL && jj<gcAct->numFacets)
+			{
+				lCodim2List->m[jj].rtyp=INTVEC_CMD;
+				int64vec ivC2=(gcAct->f2M(gcAct,fAct,2));
+				lCodim2List->m[jj].data=(void*)iv64Copy(&ivC2);
+				jj++;
+				fAct = fAct->next;
+			} 		
+		l->m[3].data=(void*)lCodim2List;		
+		l->m[4].rtyp=INTVEC_CMD/*RING_CMD*/;
+		l->m[4].data=(void*)(gcAct->getIntPoint/*BaseRing*/()); 		
+		l->m[5].rtyp=INT_CMD;
+		l->m[5].data=(void*)gcAct->getPredUCN();
+		res->m[ii].data=(void*)l;
+		gcAct = gcAct->next;
+	}	
+	return res;
+}
+
+/** Convert gc->gcRays into an intvec in order to be used with bbcone stuff*/
+intvec *gcRays2Intmat(gcone *gc)
+{
+  int r = gc->numRays;
+  int c = gc->numVars;  //Spalten
+  intvec *res = new intvec(r,c,(int)0);
+  
+  int offset=0;
+  for(int ii=0;ii<gc->numRays;ii++)
+  {
+    int64vec *ivTmp=iv64Copy(gc->gcRays[ii]);
+    for(int jj=0;jj<pVariables;jj++)
+      (*res)[offset+jj]=(int)(*ivTmp)[jj];
+    offset += pVariables;
+    delete ivTmp;
+  }
+  return res;
+}
+
+/** \brief Put stuff in gfanlib's datatype gfan::ZFan
+*/
+void prepareGfanLib(gcone *gc, gfan::ZFan *fan)
+{
+  using namespace gfan;
+  int ambientDimension = gc->numVars;
+  gcone *gcAct;
+  gcAct = gc;
+
+  //Iterate over all cones and adjoin to PolyhedralFan
+   while(gcAct!=NULL)
+  {     
+    intvec *rays=gcRays2Intmat(gcAct);
+    ZMatrix zm = intmat2ZMatrix(rays);
+    delete rays;
+    ZCone *zc = new ZCone();
+    *zc = ZCone::givenByRays(zm, gfan::ZMatrix(0, zm.getWidth()));
+//     delete &zm;
+    zc->canonicalize();//As per Anders' hint
+    fan->insert(*zc);
+//     delete zc;
+    gcAct=gcAct->next;
+  }
+}
+
+/** \brief Write facets of a cone into a matrix
+* Takes a pointer to a facet as 2nd arg 
+* f should always point to gc->facetPtr
+* param n is used to determine whether it operates in codim 1 or 2
+* We have to cast the int64vecs to int64vec due to issues with list structure
+*/
+inline int64vec gcone::f2M(gcone *gc, facet *f, int n)
+{
+	facet *fAct;
+	int64vec *res;//=new int64vec(this->numVars);	
+// 	int codim=n;
+// 	int bound;
+// 	if(f==gc->facetPtr)
+	if(n==1)
+	{
+		int64vec *m1Res=new int64vec(gc->numFacets,gc->numVars,0);
+		res = iv64Copy(m1Res);
+		fAct = gc->facetPtr;
+		delete m1Res;
+// 		bound = gc->numFacets*(this->numVars);		
+	}
+	else
+	{
+		fAct = f->codim2Ptr;
+		int64vec *m2Res = new int64vec(f->numCodim2Facets,gc->numVars,0);
+		res = iv64Copy(m2Res);
+		delete m2Res;	
+// 		bound = fAct->numCodim2Facets*(this->numVars);
+
+	}
+	int ii=0;
+	while(fAct!=NULL )//&& ii < bound )
+	{
+		const int64vec *fNormal;
+		fNormal = fAct->getRef2FacetNormal();//->getFacetNormal();
+		for(int jj=0;jj<this->numVars;jj++)
+		{
+			(*res)[ii]=(int)(*fNormal)[jj];//This is ugly and prone to overflow
+			ii++;
+		}
+		fAct = fAct->next;
+	}	
+	return *res;
+}
+
+int gcone::counter=0;
+int gfanHeuristic;
+int gcone::lengthOfSearchList;
+int gcone::maxSize;
+dd_MatrixPtr gcone::dd_LinealitySpace;
+int64vec *gcone::hilbertFunction;
+#ifdef gfanp
+// int gcone::lengthOfSearchList=0;
+float gcone::time_getConeNormals;
+float gcone::time_getCodim2Normals;
+float gcone::t_getExtremalRays;
+float gcone::t_ddPolyh;
+float gcone::time_flip;
+float gcone::time_flip2;
+float gcone::t_areEqual;
+float gcone::t_markings;
+float gcone::t_dd;
+float gcone::t_kStd=0;
+float gcone::time_enqueue;
+float gcone::time_computeInv;
+float gcone::t_ddMC;
+float gcone::t_mI;
+float gcone::t_iP;
+float gcone::t_isParallel;
+unsigned gcone::parallelButNotEqual=0;
+unsigned gcone::numberOfFacetChecks=0;
+#endif
+int gcone::numVars;
+bool gcone::hasHomInput=FALSE;
+int64vec *gcone::ivZeroVector;
+// ideal gfan(ideal inputIdeal, int h)
+/** Main routine 
+ * The first and second parameter are mandatory. The third (and maybe fourth) parameter is for Janko :)
+ */
+#ifndef USE_ZFAN
+lists grfan(ideal inputIdeal, int h, bool singleCone=FALSE)
+#else
+gfan::ZFan* grfan(ideal inputIdeal, int h, bool singleCone=FALSE)
+#endif
+{
+	lists lResList; //this is the object we return	
+	gfan::ZFan *zResFan = new gfan::ZFan(pVariables);
+	
+	if(rHasGlobalOrdering(currRing))
+	{	
+// 		int numvar = pVariables; 
+		gfanHeuristic = h;
+		
+		enum searchMethod {
+			reverseSearch,
+			noRevS
+		};
+	
+		searchMethod method;
+		method = noRevS;
+	
+		ring inputRing=currRing;	// The ring the user entered
+// 		ring rootRing;			// The ring associated to the target ordering
+
+		dd_set_global_constants();
+		if(method==noRevS)
+		{
+			gcone *gcRoot = new gcone(currRing,inputIdeal);
+			gcone *gcAct;
+			gcAct = gcRoot;
+			gcone::numVars=pVariables;
+			//gcAct->numVars=pVariables;//NOTE is now static
+			gcAct->getGB(inputIdeal);
+			/*Check whether input is homogeneous
+			if TRUE each facet intersects the positive orthant, so we don't need the
+			flippability test in getConeNormals & getExtremalRays
+			*/
+			if(idHomIdeal(gcAct->gcBasis,NULL))//disabled for tests
+			{
+				gcone::hasHomInput=TRUE;
+// 				gcone::hilbertFunction=hHstdSeries(inputIdeal,NULL,NULL,NULL,currRing);
+			}
+			else
+			{
+				gcone::ivZeroVector = new int64vec(pVariables);
+				for(int ii=0;ii<pVariables;ii++)
+					(*gcone::ivZeroVector)[ii]=0;
+			}
+
+			if(isMonomial(gcAct->gcBasis))
+			{//FIXME
+				WerrorS("Monomial input - terminating");
+				dd_free_global_constants();
+				//This is filthy
+				goto pointOfNoReturn;				
+			}			
+			gcAct->getConeNormals(gcAct->gcBasis);
+			gcone::dd_LinealitySpace = gcAct->computeLinealitySpace();
+			gcAct->getExtremalRays(*gcAct);
+			if(singleCone==FALSE)//Is Janko here?
+			{//Compute the whole fan
+			  gcAct->noRevS(*gcAct);	//Here we go!
+			}			    
+			//Switch back to the ring the computation was started in
+			rChangeCurrRing(inputRing);
+			//res=gcAct->gcBasis;
+			//Below is a workaround, since gcAct->gcBasis gets deleted in noRevS
+#ifndef USE_ZFAN
+			lResList=lprepareResult(gcRoot,gcRoot->getCounter());
+#else
+			prepareGfanLib(gcRoot,zResFan);
+#endif
+			/*Cleanup*/
+			gcone *gcDel;	
+			gcDel = gcRoot;
+			gcAct = gcRoot;
+			while(gcAct!=NULL)
+			{
+				gcDel = gcAct;
+				gcAct = gcAct->next;
+// 				delete gcDel;
+			}
+		}//method==noRevS
+		dd_FreeMatrix(gcone::dd_LinealitySpace);
+		dd_free_global_constants();
+	}//rHasGlobalOrdering
+	else
+	{
+		//Simply return an empty list
+		WerrorS("Ring has non-global ordering.\nThis function requires your current ring to be endowed with a global ordering.\n Now terminating!");
+// 		gcone *gcRoot=new gcone();
+// 		gcone *gcPtr = gcRoot;
+// 		for(int ii=0;ii<10000;ii++)
+// 		{
+// 			gcPtr->setBaseRing(currRing);
+// 			facet *fPtr=gcPtr->facetPtr=new facet();
+// 			for(int jj=0;jj<5;jj++)
+// 			{
+// 				int64vec *iv=new int64vec(pVariables);
+// 				fPtr->setFacetNormal(iv);				
+// 				delete(iv);
+// 				fPtr->next=new facet();
+// 				fPtr=fPtr->next;
+// 			}
+// 			gcPtr->next=new gcone();
+// 			gcPtr->next->prev=gcPtr;
+// 			gcPtr=gcPtr->next;			
+// 		}
+// 		gcPtr=gcRoot;
+// 		while(gcPtr!=NULL)
+// 		{
+// 			gcPtr=gcPtr->next;
+// // 			delete(gcPtr->prev);
+// 		}
+		goto pointOfNoReturn;
+	}
+	/*Return result*/
+#ifdef gfanp
+	cout << endl << "t_getConeNormals:" << gcone::time_getConeNormals << endl;
+	/*cout << "t_getCodim2Normals:" << gcone::time_getCodim2Normals << endl;
+	cout << "  t_ddMC:" << gcone::t_ddMC << endl;
+	cout << "  t_mI:" << gcone::t_mI << endl;
+	cout << "  t_iP:" << gcone::t_iP << endl;*/
+	cout << "t_getExtremalRays:" << gcone::t_getExtremalRays << endl;
+	cout << "  t_ddPolyh:" << gcone::t_ddPolyh << endl;
+	cout << "t_Flip:" << gcone::time_flip << endl;
+	cout << "  t_markings:" << gcone::t_markings << endl;
+	cout << "  t_dd:" << gcone::t_dd << endl;
+	cout << "  t_kStd:" << gcone::t_kStd << endl;
+	cout << "t_Flip2:" << gcone::time_flip2 << endl;
+	cout << "  t_dd:" << gcone::t_dd << endl;
+	cout << "  t_kStd:" << gcone::t_kStd << endl;
+	cout << "t_computeInv:" << gcone::time_computeInv << endl;
+	cout << "t_enqueue:" << gcone::time_enqueue << endl;
+	cout << "  t_areEqual:" <<gcone::t_areEqual << endl;
+	cout << "t_isParallel:" <<gcone::t_isParallel << endl;
+	cout << endl;
+	cout << "Checked " << gcone::numberOfFacetChecks << " Facets" << endl;
+	cout << " out of which there were " << gcone::parallelButNotEqual << " parallel but not equal." << endl;
+#endif
+	printf("Maximum lenght of list of facets: %i", gcone::maxSize);
+pointOfNoReturn:
+#ifndef USE_ZFAN
+	return lResList;
+#else
+	return zResFan;
+#endif
+}
+
+/** Compute a single Gröbner cone by specifying an ideal and a weight vector.
+ * NOTE: We do NOT check whether the vector is from the relative interior of the cone.
+ * That is upon the user to assure.
+ */
+// lists grcone_by_intvec(ideal inputIdeal)
+// {
+//   if( (rRingOrder_t)currRing->order[0] == ringorder_wp)
+//   {
+//     lists lResList;
+//     lResList=grfan(inputIdeal, 0, TRUE);
+//   }
+//   else
+//     WerrorS("Need wp ordering");
+// }
+#endif
diff --git a/kernel/gnumpc.cc b/kernel/gnumpc.cc
index 62ea1f0..e3a28a8 100644
--- a/kernel/gnumpc.cc
+++ b/kernel/gnumpc.cc
@@ -7,7 +7,7 @@
 * ngc == number gnu complex
 */
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <kernel/structs.h>
 #include <kernel/febase.h>
 #include <omalloc/omalloc.h>
diff --git a/kernel/gnumpfl.cc b/kernel/gnumpfl.cc
index 8438dd5..eb7294b 100644
--- a/kernel/gnumpfl.cc
+++ b/kernel/gnumpfl.cc
@@ -7,7 +7,7 @@
 * ngf == number gnu floats
 */
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <kernel/structs.h>
 #include <kernel/febase.h>
 #include <omalloc/omalloc.h>
diff --git a/kernel/gr_kstd2.cc b/kernel/gr_kstd2.cc
index 27e0152..c311b81 100644
--- a/kernel/gr_kstd2.cc
+++ b/kernel/gr_kstd2.cc
@@ -5,7 +5,7 @@
 *  ABSTRACT -  Kernel: noncomm. alg. of Buchberger
 */
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 
 #ifdef HAVE_PLURAL
 
diff --git a/kernel/gring.cc b/kernel/gring.cc
index ec02714..27e8a5a 100644
--- a/kernel/gring.cc
+++ b/kernel/gring.cc
@@ -16,7 +16,7 @@
 #define OM_TRACK 5
 #endif
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 
 #ifdef HAVE_PLURAL
 #define PLURAL_INTERNAL_DECLARATIONS
diff --git a/kernel/hdegree.cc b/kernel/hdegree.cc
index 2e3053e..6d4cecd 100644
--- a/kernel/hdegree.cc
+++ b/kernel/hdegree.cc
@@ -5,7 +5,7 @@
 *  ABSTRACT -  dimension, multiplicity, HC, kbase
 */
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 
 
 #include <kernel/structs.h>
diff --git a/kernel/hilb.cc b/kernel/hilb.cc
index e629397..f687164 100644
--- a/kernel/hilb.cc
+++ b/kernel/hilb.cc
@@ -5,7 +5,7 @@
 *  ABSTRACT -  Hilbert series
 */
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <kernel/structs.h>
 #include <kernel/febase.h>
 #include <omalloc/omalloc.h>
diff --git a/kernel/hutil.cc b/kernel/hutil.cc
index 3521746..07214b3 100644
--- a/kernel/hutil.cc
+++ b/kernel/hutil.cc
@@ -5,7 +5,7 @@
 * ABSTRACT: Utilities for staircase operations
 */
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <kernel/structs.h>
 #include <kernel/febase.h>
 #include <omalloc/omalloc.h>
diff --git a/kernel/ideals.cc b/kernel/ideals.cc
index d1701b9..5c63cc8 100644
--- a/kernel/ideals.cc
+++ b/kernel/ideals.cc
@@ -6,7 +6,7 @@
 */
 
 /* includes */
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 
 #ifndef NDEBUG
 # define MYTEST 0
diff --git a/kernel/int64vec.cc b/kernel/int64vec.cc
index ef39725..31a6323 100644
--- a/kernel/int64vec.cc
+++ b/kernel/int64vec.cc
@@ -4,7 +4,7 @@
 /*
 * ABSTRACT: class int64vec: lists/vectors of int64
 */
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <kernel/structs.h>
 #include <kernel/febase.h>
 #include <kernel/int64vec.h>
diff --git a/kernel/intvec.cc b/kernel/intvec.cc
index 075d1ea..7688255 100644
--- a/kernel/intvec.cc
+++ b/kernel/intvec.cc
@@ -6,7 +6,7 @@
 */
 #ifndef INTVEC_CC
 #define INTVEC_CC
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <kernel/febase.h>
 #include <kernel/options.h>
 #include <kernel/intvec.h>
diff --git a/kernel/kbuckets.cc b/kernel/kbuckets.cc
index fe6b32c..eb90b87 100644
--- a/kernel/kbuckets.cc
+++ b/kernel/kbuckets.cc
@@ -2,7 +2,7 @@
 *  Computer Algebra System SINGULAR     *
 ****************************************/
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <kernel/structs.h>
 #include <omalloc/omalloc.h>
 #include <kernel/p_polys.h>
diff --git a/kernel/khstd.cc b/kernel/khstd.cc
index 51039c4..23c863d 100644
--- a/kernel/khstd.cc
+++ b/kernel/khstd.cc
@@ -5,7 +5,7 @@
 * ABSTRACT:utils for hilbert driven kStd
 */
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <kernel/febase.h>
 #include <kernel/options.h>
 #include <kernel/polys.h>
diff --git a/kernel/kspoly.cc b/kernel/kspoly.cc
index 78b5c02..756a256 100644
--- a/kernel/kspoly.cc
+++ b/kernel/kspoly.cc
@@ -6,7 +6,7 @@
 */
 
 // #define PDEBUG 2
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <kernel/options.h>
 #include <kernel/kutil.h>
 #include <kernel/numbers.h>
diff --git a/kernel/kstd1.cc b/kernel/kstd1.cc
index 07175cb..4c9c978 100644
--- a/kernel/kstd1.cc
+++ b/kernel/kstd1.cc
@@ -13,7 +13,7 @@
 // define if buckets should be used
 #define MORA_USE_BUCKETS
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <omalloc/omalloc.h>
 
 #ifndef NDEBUG
diff --git a/kernel/kstd2.cc b/kernel/kstd2.cc
index e853df2..38ea53d 100644
--- a/kernel/kstd2.cc
+++ b/kernel/kstd2.cc
@@ -12,7 +12,7 @@
 // define to enable tailRings
 #define HAVE_TAIL_RING
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 
 #ifndef NDEBUG
 # define MYTEST 0
diff --git a/kernel/kstdfac.cc b/kernel/kstdfac.cc
index 437a9d5..3c6b003 100644
--- a/kernel/kstdfac.cc
+++ b/kernel/kstdfac.cc
@@ -5,7 +5,7 @@
 *  ABSTRACT -  Kernel: factorizing alg. of Buchberger
 */
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <omalloc/omalloc.h>
 #include <kernel/options.h>
 #include <kernel/polys.h>
diff --git a/kernel/kutil.cc b/kernel/kutil.cc
index 0b2103b..68d2cf9 100644
--- a/kernel/kutil.cc
+++ b/kernel/kutil.cc
@@ -10,7 +10,7 @@
 #define KUTIL_CC
 #include <stdlib.h>
 #include <string.h>
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 
 #ifndef NDEBUG
 # define MYTEST 0
diff --git a/kernel/linearAlgebra.cc b/kernel/linearAlgebra.cc
index 74842dc..015cac2 100644
--- a/kernel/linearAlgebra.cc
+++ b/kernel/linearAlgebra.cc
@@ -14,7 +14,7 @@
 /*****************************************************************************/
 
 // include header files
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <kernel/structs.h>
 #include <kernel/polys.h>
 #include <kernel/ideals.h>
diff --git a/kernel/longalg.cc b/kernel/longalg.cc
index 5b26264..b86431f 100644
--- a/kernel/longalg.cc
+++ b/kernel/longalg.cc
@@ -7,7 +7,7 @@
 
 #include <stdio.h>
 #include <string.h>
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <kernel/structs.h>
 #include <omalloc/omalloc.h>
 #include <kernel/febase.h>
diff --git a/kernel/longrat.cc b/kernel/longrat.cc
index 1938a45..c2cc177 100644
--- a/kernel/longrat.cc
+++ b/kernel/longrat.cc
@@ -5,7 +5,7 @@
 * ABSTRACT: computation with long rational numbers (Hubert Grassmann)
 */
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <kernel/structs.h>
 #include <kernel/longrat.h>
 
diff --git a/kernel/longrat0.cc b/kernel/longrat0.cc
index f4d1e32..7ecaabe 100644
--- a/kernel/longrat0.cc
+++ b/kernel/longrat0.cc
@@ -8,7 +8,7 @@
 
 #include <stdio.h>
 #include <string.h>
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <kernel/structs.h>
 #include <omalloc/omalloc.h>
 #include <kernel/febase.h>
diff --git a/kernel/longtrans.cc b/kernel/longtrans.cc
index cf2ebef..88d48ab 100644
--- a/kernel/longtrans.cc
+++ b/kernel/longtrans.cc
@@ -9,7 +9,7 @@
 #if 0
 #include <stdio.h>
 #include <string.h>
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <kernel/structs.h>
 #include <omalloc/omalloc.h>
 #include <kernel/febase.h>
diff --git a/kernel/lplist.cc b/kernel/lplist.cc
index 0f5fdc3..35bacb9 100644
--- a/kernel/lplist.cc
+++ b/kernel/lplist.cc
@@ -4,7 +4,7 @@
 /*
 * ABSTRACT: list interface
 */
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 
 #ifdef HAVE_F5
 
diff --git a/kernel/maps.cc b/kernel/maps.cc
index d323ca8..951c2c9 100644
--- a/kernel/maps.cc
+++ b/kernel/maps.cc
@@ -5,7 +5,7 @@
 * ABSTRACT - the mapping of polynomials to other rings
 */
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <kernel/options.h>
 #include <kernel/febase.h>
 #include <kernel/polys.h>
diff --git a/kernel/matpol.cc b/kernel/matpol.cc
index 304c249..16b0ea7 100644
--- a/kernel/matpol.cc
+++ b/kernel/matpol.cc
@@ -9,7 +9,7 @@
 #include <stdio.h>
 #include <math.h>
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <omalloc/mylimits.h>
 #include <kernel/structs.h>
 #include <kernel/kstd1.h>
diff --git a/kernel/misc.cc b/kernel/misc.cc
index 4ba410c..21ecce5 100644
--- a/kernel/misc.cc
+++ b/kernel/misc.cc
@@ -12,7 +12,7 @@
 #include <stdlib.h>
 #include <time.h>
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <omalloc/mylimits.h>
 #include <omalloc/omalloc.h>
 #include <kernel/structs.h>
diff --git a/kernel/mmalloc.cc b/kernel/mmalloc.cc
index 2050e59..0a3b6d4 100644
--- a/kernel/mmalloc.cc
+++ b/kernel/mmalloc.cc
@@ -6,7 +6,7 @@
 */
 #include <stdlib.h>
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 
 #include <omalloc/omalloc.h>
 #include <new>
diff --git a/kernel/mmstd.c b/kernel/mmstd.c
index 6ccb824..f2fd277 100644
--- a/kernel/mmstd.c
+++ b/kernel/mmstd.c
@@ -6,7 +6,7 @@
 * i.e. (malloc/realloc/free)
 */
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 
 #include <omalloc/omalloc.h>
 #include <Singular/static.h>
diff --git a/kernel/mod_raw.cc b/kernel/mod_raw.cc
index 025bbb2..8cb85c7 100644
--- a/kernel/mod_raw.cc
+++ b/kernel/mod_raw.cc
@@ -17,7 +17,7 @@
 #include <sys/stat.h>
 
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <Singular/static.h>
 
 #include <kernel/mod_raw.h>
diff --git a/kernel/modulop.cc b/kernel/modulop.cc
index 35e1c37..70ee176 100644
--- a/kernel/modulop.cc
+++ b/kernel/modulop.cc
@@ -6,7 +6,7 @@
 */
 
 #include <string.h>
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <omalloc/mylimits.h>
 #include <kernel/structs.h>
 #include <kernel/febase.h>
diff --git a/kernel/mpr_base.cc b/kernel/mpr_base.cc
index a784bab..95947df 100644
--- a/kernel/mpr_base.cc
+++ b/kernel/mpr_base.cc
@@ -8,7 +8,7 @@
 
 #include <math.h>
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 
 #include <omalloc/mylimits.h>
 #include <omalloc/omalloc.h>
diff --git a/kernel/mpr_complex.cc b/kernel/mpr_complex.cc
index 9fb1056..255e14f 100644
--- a/kernel/mpr_complex.cc
+++ b/kernel/mpr_complex.cc
@@ -10,7 +10,7 @@
 
 // WARNING! ALWAYS use omAlloc and FreeL when alloc. memory for some char* !!
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 //#ifdef HAVE_MPR
 #include <kernel/structs.h>
 #include <kernel/febase.h>
diff --git a/kernel/mpr_inout.cc b/kernel/mpr_inout.cc
index f8c9b7e..3e13e7e 100644
--- a/kernel/mpr_inout.cc
+++ b/kernel/mpr_inout.cc
@@ -6,7 +6,7 @@
 * ABSTRACT - multipolynomial resultant
 */
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 //#ifdef HAVE_MPR
 
 //-> includes
diff --git a/kernel/mpr_numeric.cc b/kernel/mpr_numeric.cc
index 79c741b..55bb031 100644
--- a/kernel/mpr_numeric.cc
+++ b/kernel/mpr_numeric.cc
@@ -8,7 +8,7 @@
 *            ( root finder, vandermonde system solver, simplex )
 */
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 //#ifdef HAVE_MPR
 
 //#define mprDEBUG_ALL
diff --git a/kernel/multicnt.cc b/kernel/multicnt.cc
index 9f11b1d..de21ed3 100644
--- a/kernel/multicnt.cc
+++ b/kernel/multicnt.cc
@@ -7,7 +7,7 @@
 
 #define MULTICNT_CC
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 
 #ifdef HAVE_SPECTRUM
 
diff --git a/kernel/ncSACache.cc b/kernel/ncSACache.cc
index 742ebba..86b86e5 100644
--- a/kernel/ncSACache.cc
+++ b/kernel/ncSACache.cc
@@ -17,7 +17,7 @@
 #endif
 
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 
 #ifndef NDEBUG
 #define OUTPUT 1
diff --git a/kernel/ncSAFormula.cc b/kernel/ncSAFormula.cc
index b4fefe0..c985bda 100644
--- a/kernel/ncSAFormula.cc
+++ b/kernel/ncSAFormula.cc
@@ -17,7 +17,7 @@
 #endif
 
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 
 #ifdef HAVE_PLURAL
 
diff --git a/kernel/ncSAMult.cc b/kernel/ncSAMult.cc
index fcf767a..ecdcaed 100644
--- a/kernel/ncSAMult.cc
+++ b/kernel/ncSAMult.cc
@@ -17,7 +17,7 @@
 #endif
 
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 
 #ifdef HAVE_PLURAL
 
diff --git a/kernel/npolygon.cc b/kernel/npolygon.cc
index afb939b..b54d941 100644
--- a/kernel/npolygon.cc
+++ b/kernel/npolygon.cc
@@ -7,7 +7,7 @@
 
 #define  NPOLYGON_CC
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 
 #ifdef HAVE_SPECTRUM
 
diff --git a/kernel/numbers.cc b/kernel/numbers.cc
index 61b68a7..35c08b2 100644
--- a/kernel/numbers.cc
+++ b/kernel/numbers.cc
@@ -8,7 +8,7 @@
 
 #include <string.h>
 #include <stdlib.h>
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <kernel/structs.h>
 #include <kernel/febase.h>
 #include <kernel/kstd1.h>
diff --git a/kernel/pDebug.cc b/kernel/pDebug.cc
index b658d92..5b2e82a 100644
--- a/kernel/pDebug.cc
+++ b/kernel/pDebug.cc
@@ -14,7 +14,7 @@
 #include <stdio.h>
 
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #ifdef PDEBUG
 
 // do the following to always enforce checking of pSetm
diff --git a/kernel/pInline0.cc b/kernel/pInline0.cc
index f851034..7eb90cb 100644
--- a/kernel/pInline0.cc
+++ b/kernel/pInline0.cc
@@ -9,7 +9,7 @@
  *******************************************************************/
 #ifndef PINLINE0_CC
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 
 #define PINLINE0_CC
 #undef DO_PINLINE0
diff --git a/kernel/pInline1.cc b/kernel/pInline1.cc
index 40563b6..e30321d 100644
--- a/kernel/pInline1.cc
+++ b/kernel/pInline1.cc
@@ -10,7 +10,7 @@
 #ifndef PINLINE1_CC
 #define PINLINE1_CC
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 
 #ifdef PDEBUG
 
diff --git a/kernel/pInline2.cc b/kernel/pInline2.cc
index 5b4ede8..b71b8ad 100644
--- a/kernel/pInline2.cc
+++ b/kernel/pInline2.cc
@@ -9,7 +9,7 @@
  *******************************************************************/
 #ifndef PINLINE2_CC
 #define PINLINE2_CC
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 
 #ifdef PDEBUG
 
diff --git a/kernel/pShallowCopyDelete.cc b/kernel/pShallowCopyDelete.cc
index 25fe533..f5d6daa 100644
--- a/kernel/pShallowCopyDelete.cc
+++ b/kernel/pShallowCopyDelete.cc
@@ -7,7 +7,7 @@
  *  Author:  obachman (Olaf Bachmann)
  *  Created: 8/00
  *******************************************************************/
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <kernel/p_polys.h>
 #include <kernel/ring.h>
 #include <kernel/pShallowCopyDelete.h>
diff --git a/kernel/p_Mult_q.cc b/kernel/p_Mult_q.cc
index bbb07ef..cbec90e 100644
--- a/kernel/p_Mult_q.cc
+++ b/kernel/p_Mult_q.cc
@@ -7,7 +7,7 @@
  *  Author:  obachman (Olaf Bachmann)
  *  Created: 8/00
  *******************************************************************/
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 
 /***************************************************************
  *
diff --git a/kernel/p_Mult_q.h b/kernel/p_Mult_q.h
index 4da031f..8ec326f 100644
--- a/kernel/p_Mult_q.h
+++ b/kernel/p_Mult_q.h
@@ -8,7 +8,7 @@
  *  Author:  obachman (Olaf Bachmann)
  *  Created: 8/00
  *******************************************************************/
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <kernel/structs.h>
 
 // Use buckets if min(pLength(p), pLength(q)) >= MIN_LENGTH_BUCKET
diff --git a/kernel/p_Procs_Dynamic.cc b/kernel/p_Procs_Dynamic.cc
index 8f30e78..58f1249 100644
--- a/kernel/p_Procs_Dynamic.cc
+++ b/kernel/p_Procs_Dynamic.cc
@@ -7,7 +7,7 @@
  *  Author:  obachman (Olaf Bachmann)
  *  Created: 12/00
  *******************************************************************/
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <kernel/structs.h>
 #include <kernel/p_polys.h>
 #include <kernel/ring.h>
diff --git a/kernel/p_Procs_Generate.cc b/kernel/p_Procs_Generate.cc
index af1003d..5ed8398 100644
--- a/kernel/p_Procs_Generate.cc
+++ b/kernel/p_Procs_Generate.cc
@@ -14,7 +14,7 @@
 #include <stdlib.h>
 #include <string.h>
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <kernel/dError.c>
 
 #ifdef p_Procs_Static
diff --git a/kernel/p_Procs_Lib.cc b/kernel/p_Procs_Lib.cc
index 5ff7c37..4014665 100644
--- a/kernel/p_Procs_Lib.cc
+++ b/kernel/p_Procs_Lib.cc
@@ -7,7 +7,7 @@
  *  Author:  obachman (Olaf Bachmann)
  *  Created: 12/00
  *******************************************************************/
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <kernel/structs.h>
 #include <kernel/p_polys.h>
 #include <kernel/ring.h>
diff --git a/kernel/p_Procs_Static.cc b/kernel/p_Procs_Static.cc
index a3aa326..a93f493 100644
--- a/kernel/p_Procs_Static.cc
+++ b/kernel/p_Procs_Static.cc
@@ -7,7 +7,7 @@
  *  Author:  obachman (Olaf Bachmann)
  *  Created: 12/00
  *******************************************************************/
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <kernel/structs.h>
 #include <kernel/p_polys.h>
 #include <kernel/ring.h>
diff --git a/kernel/p_polys.cc b/kernel/p_polys.cc
index 01c15c6..4e90501 100644
--- a/kernel/p_polys.cc
+++ b/kernel/p_polys.cc
@@ -9,7 +9,7 @@
  *******************************************************************/
 
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 
 #include <kernel/structs.h>
 #include <kernel/p_polys.h>
diff --git a/kernel/page.c b/kernel/page.c
index 19681d5..4011a14 100644
--- a/kernel/page.c
+++ b/kernel/page.c
@@ -1,4 +1,4 @@
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #ifdef PAGE_TEST
 #include <stdlib.h>
 #include <unistd.h>
diff --git a/kernel/polys-impl.cc b/kernel/polys-impl.cc
index d247b65..a1b751d 100644
--- a/kernel/polys-impl.cc
+++ b/kernel/polys-impl.cc
@@ -17,7 +17,7 @@
 
 #include <stdio.h>
 #include <string.h>
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 
 #include <omalloc/omalloc.h>
 #ifdef PDEBUG
diff --git a/kernel/polys.cc b/kernel/polys.cc
index 53ba7b9..b89a9a0 100644
--- a/kernel/polys.cc
+++ b/kernel/polys.cc
@@ -10,7 +10,7 @@
 #include <stdio.h>
 #include <string.h>
 #include <ctype.h>
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <kernel/options.h>
 #include <omalloc/omalloc.h>
 #include <kernel/febase.h>
diff --git a/kernel/polys0.cc b/kernel/polys0.cc
index 87aea68..d5ec8fd 100644
--- a/kernel/polys0.cc
+++ b/kernel/polys0.cc
@@ -7,7 +7,7 @@
 */
 
 /* includes */
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <kernel/structs.h>
 #include <kernel/numbers.h>
 #include <kernel/ring.h>
diff --git a/kernel/polys1.cc b/kernel/polys1.cc
index fa797fe..36d25d6 100644
--- a/kernel/polys1.cc
+++ b/kernel/polys1.cc
@@ -8,7 +8,7 @@
 
 /* includes */
 #include <string.h>
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <kernel/options.h>
 #include <kernel/numbers.h>
 #include <kernel/ffields.h>
diff --git a/kernel/prCopy.cc b/kernel/prCopy.cc
index d335eda..7273cff 100644
--- a/kernel/prCopy.cc
+++ b/kernel/prCopy.cc
@@ -5,7 +5,7 @@
 * ABSTRACT - implementation of functions for Copy/Move/Delete for Polys
 */
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <omalloc/omalloc.h>
 #include <kernel/p_polys.h>
 #include <kernel/numbers.h>
diff --git a/kernel/ratgring.cc b/kernel/ratgring.cc
index 48d7a6f..6dc7a5c 100644
--- a/kernel/ratgring.cc
+++ b/kernel/ratgring.cc
@@ -7,7 +7,7 @@
  *  Author:  levandov (Viktor Levandovsky)
  *  Created: 8/00 - 11/00
  *******************************************************************/
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <kernel/ratgring.h>
 #ifdef HAVE_RATGRING
 #include <kernel/gring.h>
diff --git a/kernel/ring.cc b/kernel/ring.cc
index ac14c23..f2f9a6b 100644
--- a/kernel/ring.cc
+++ b/kernel/ring.cc
@@ -7,7 +7,7 @@
 
 /* includes */
 #include <math.h>
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 
 #include <kernel/options.h>
 #include <omalloc/omalloc.h>
diff --git a/kernel/ringgb.cc b/kernel/ringgb.cc
index c1d510f..60e33c9 100644
--- a/kernel/ringgb.cc
+++ b/kernel/ringgb.cc
@@ -7,7 +7,7 @@
 //#define HAVE_TAIL_RING
 #define NO_BUCKETS
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <kernel/kutil.h>
 #include <kernel/structs.h>
 #include <omalloc/omalloc.h>
diff --git a/kernel/ringgb.h b/kernel/ringgb.h
index dd05f96..10f15c8 100644
--- a/kernel/ringgb.h
+++ b/kernel/ringgb.h
@@ -6,7 +6,7 @@
 */
 #ifndef RINGGB_HEADER
 #define RINGGB_HEADER
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 
 #ifdef HAVE_RINGS
 #include <kernel/polys.h>
diff --git a/kernel/rintegers.cc b/kernel/rintegers.cc
index 199315a..5b3af34 100644
--- a/kernel/rintegers.cc
+++ b/kernel/rintegers.cc
@@ -6,7 +6,7 @@
 */
 
 #include <string.h>
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <omalloc/mylimits.h>
 #include <kernel/structs.h>
 #include <kernel/febase.h>
diff --git a/kernel/rmodulo2m.cc b/kernel/rmodulo2m.cc
index 23e8635..13efb52 100644
--- a/kernel/rmodulo2m.cc
+++ b/kernel/rmodulo2m.cc
@@ -6,7 +6,7 @@
 */
 
 #include <string.h>
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 
 #ifdef HAVE_RINGS
 #include <omalloc/mylimits.h>
diff --git a/kernel/rmodulon.cc b/kernel/rmodulon.cc
index e90aab7..17b2720 100644
--- a/kernel/rmodulon.cc
+++ b/kernel/rmodulon.cc
@@ -6,7 +6,7 @@
 */
 
 #include <string.h>
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <omalloc/mylimits.h>
 #include <kernel/structs.h>
 #include <kernel/febase.h>
diff --git a/kernel/sbuckets.cc b/kernel/sbuckets.cc
index a99f0c5..2293b27 100644
--- a/kernel/sbuckets.cc
+++ b/kernel/sbuckets.cc
@@ -8,7 +8,7 @@
  *  Author:  obachman (Olaf Bachmann)
  *  Created: 9/00
  *******************************************************************/
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 
 #include <kernel/sbuckets.h>
 #include <omalloc/omalloc.h>
diff --git a/kernel/sca.cc b/kernel/sca.cc
index 41bda73..a4aeea7 100644
--- a/kernel/sca.cc
+++ b/kernel/sca.cc
@@ -18,7 +18,7 @@
 #endif
 
 // #define PDEBUG 2
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 
 #ifdef HAVE_PLURAL
 // for
diff --git a/kernel/semic.cc b/kernel/semic.cc
index fed3484..dced520 100644
--- a/kernel/semic.cc
+++ b/kernel/semic.cc
@@ -7,7 +7,7 @@
 
 #define SEMIC_CC
 
-#include"mod2.h"
+#include <Singular/mod2.h>
 
 #ifdef HAVE_SPECTRUM
 
diff --git a/kernel/shiftgb.cc b/kernel/shiftgb.cc
index 04a73f6..fc09395 100644
--- a/kernel/shiftgb.cc
+++ b/kernel/shiftgb.cc
@@ -5,7 +5,7 @@
 * ABSTRACT: kernel: utils for shift GB and free GB
 */
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 
 #ifdef HAVE_SHIFTBBA
 #include <kernel/febase.h>
diff --git a/kernel/shortfl.cc b/kernel/shortfl.cc
index fa1646a..31c3f66 100644
--- a/kernel/shortfl.cc
+++ b/kernel/shortfl.cc
@@ -7,7 +7,7 @@
 */
 
 #include <string.h>
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <omalloc/mylimits.h>
 #include <kernel/structs.h>
 #include <kernel/febase.h>
diff --git a/kernel/sparsmat.cc b/kernel/sparsmat.cc
index d3d1bed..ad245a6 100644
--- a/kernel/sparsmat.cc
+++ b/kernel/sparsmat.cc
@@ -6,7 +6,7 @@
 * ABSTRACT: operations with sparse matrices (bareiss, ...)
 */
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <kernel/options.h>
 #include <kernel/febase.h>
 #include <kernel/intvec.h>
diff --git a/kernel/spectrum.cc b/kernel/spectrum.cc
index 1671a6e..98a8f4f 100644
--- a/kernel/spectrum.cc
+++ b/kernel/spectrum.cc
@@ -7,7 +7,7 @@
 
 #define SPECTRUM_CC
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 
 #ifdef HAVE_SPECTRUM
 
diff --git a/kernel/splist.cc b/kernel/splist.cc
index c1db0ae..7a4b65a 100644
--- a/kernel/splist.cc
+++ b/kernel/splist.cc
@@ -7,7 +7,7 @@
 
 #define SPLIST_CC
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 
 #ifdef HAVE_SPECTRUM
 
diff --git a/kernel/summator.cc b/kernel/summator.cc
index 5351586..ce70f0b 100644
--- a/kernel/summator.cc
+++ b/kernel/summator.cc
@@ -17,7 +17,7 @@
 #define OM_TRACK 5
 #endif
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #ifdef HAVE_PLURAL
 #include <kernel/summator.h>
 #include <kernel/options.h>
diff --git a/kernel/syz.cc b/kernel/syz.cc
index 2283bf0..bcca57f 100644
--- a/kernel/syz.cc
+++ b/kernel/syz.cc
@@ -7,7 +7,7 @@
 */
 
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <kernel/options.h>
 #include <omalloc/omalloc.h>
 #include <kernel/polys.h>
diff --git a/kernel/syz0.cc b/kernel/syz0.cc
index e5e4d2b..2d92449 100644
--- a/kernel/syz0.cc
+++ b/kernel/syz0.cc
@@ -6,7 +6,7 @@
 */
 
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <kernel/options.h>
 #include <omalloc/omalloc.h>
 #include <kernel/polys.h>
diff --git a/kernel/syz1.cc b/kernel/syz1.cc
index c8537c4..f815067 100644
--- a/kernel/syz1.cc
+++ b/kernel/syz1.cc
@@ -5,7 +5,7 @@
 * ABSTRACT: resolutions
 */
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <omalloc/mylimits.h>
 #include <kernel/options.h>
 #include <omalloc/omalloc.h>
diff --git a/kernel/syz2.cc b/kernel/syz2.cc
index 83acf72..5014240 100644
--- a/kernel/syz2.cc
+++ b/kernel/syz2.cc
@@ -5,7 +5,7 @@
 * ABSTRACT: resolutions
 */
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <omalloc/mylimits.h>
 #include <kernel/options.h>
 #include <omalloc/omalloc.h>
diff --git a/kernel/syz3.cc b/kernel/syz3.cc
index b4edc9b..175258f 100644
--- a/kernel/syz3.cc
+++ b/kernel/syz3.cc
@@ -5,7 +5,7 @@
 * ABSTRACT: resolutions
 */
  
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <omalloc/mylimits.h>
 #include <kernel/options.h>
 #include <omalloc/omalloc.h>
diff --git a/kernel/tgb.cc b/kernel/tgb.cc
index 3ee6393..f4c1a0f 100644
--- a/kernel/tgb.cc
+++ b/kernel/tgb.cc
@@ -13,7 +13,7 @@
 ///@TODO: delay nur auf Sugarvergr?erung
 ///@TODO: grade aus ecartS, setze dazu strat->honey; und nutze p.ecart
 ///@TODO: no tail reductions in syz comp
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <kernel/options.h>
 #include <kernel/tgb.h>
 #include <kernel/tgb_internal.h>
diff --git a/kernel/tgbgauss.cc b/kernel/tgbgauss.cc
index 7d6db60..a99a0ad 100644
--- a/kernel/tgbgauss.cc
+++ b/kernel/tgbgauss.cc
@@ -4,7 +4,7 @@
 /*
 * ABSTRACT: gauss implementation for F4
 */
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <kernel/options.h>
 #include <kernel/tgbgauss.h>
 #include <omalloc/omalloc.h>
diff --git a/kernel/tgbgauss.h b/kernel/tgbgauss.h
index 994a208..8ab56fc 100644
--- a/kernel/tgbgauss.h
+++ b/kernel/tgbgauss.h
@@ -6,7 +6,7 @@
 /*
 * ABSTRACT: gauss implementation for F4 header
 */
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <kernel/numbers.h>
 //#include "tgb_internal.h"
 
diff --git a/kernel/timer.cc b/kernel/timer.cc
index 4a382bf..7623fa8 100644
--- a/kernel/timer.cc
+++ b/kernel/timer.cc
@@ -8,7 +8,7 @@
 #include <sys/resource.h>
 #include <unistd.h>
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 
 int        timerv = 0;
 static double timer_resolution = TIMER_RESOLUTION;
diff --git a/kernel/tmult.cc b/kernel/tmult.cc
index c26c61e..647e6e3 100644
--- a/kernel/tmult.cc
+++ b/kernel/tmult.cc
@@ -4,7 +4,7 @@
  *  tmult.cc: p_Mult_nn with pthreads - experimental
  *
  *******************************************************************/
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <kernel/structs.h>
 #include <kernel/numbers.h>
 #include <kernel/polys.h>
diff --git a/kernel/units.cc b/kernel/units.cc
index 37f7416..3c40728 100644
--- a/kernel/units.cc
+++ b/kernel/units.cc
@@ -5,7 +5,7 @@
 * ABSTRACT: procedures to compute with units
 */
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <kernel/structs.h>
 #include <kernel/febase.h>
 #include <kernel/numbers.h>
diff --git a/kernel/walkMain.cc b/kernel/walkMain.cc
index c0ac32a..1f5b530 100644
--- a/kernel/walkMain.cc
+++ b/kernel/walkMain.cc
@@ -6,7 +6,7 @@
  *
 */
 #include <string.h>
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <kernel/options.h>
 #include <kernel/intvec.h>
 #include <kernel/int64vec.h>
diff --git a/kernel/walkProc.cc b/kernel/walkProc.cc
index 18945b7..8e39c5a 100644
--- a/kernel/walkProc.cc
+++ b/kernel/walkProc.cc
@@ -2,7 +2,7 @@
 *  Computer Algebra System SINGULAR     *
 ****************************************/
 
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <kernel/structs.h>
 #include <kernel/structs.h>
 #include <kernel/polys.h>
diff --git a/kernel/walkSupport.cc b/kernel/walkSupport.cc
index ea9c1fa..ada42f7 100644
--- a/kernel/walkSupport.cc
+++ b/kernel/walkSupport.cc
@@ -1,5 +1,5 @@
 #include <string.h>
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <kernel/intvec.h>
 #include <kernel/int64vec.h>
 #include <kernel/polys.h>
diff --git a/kernel/weight.cc b/kernel/weight.cc
index 23a8779..936187b 100644
--- a/kernel/weight.cc
+++ b/kernel/weight.cc
@@ -7,7 +7,7 @@
 */
 
 #include <math.h>
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <kernel/options.h>
 #include <omalloc/omalloc.h>
 #include <kernel/polys.h>
diff --git a/kernel/weight0.c b/kernel/weight0.c
index 80454d9..04746d5 100644
--- a/kernel/weight0.c
+++ b/kernel/weight0.c
@@ -8,7 +8,7 @@
 
 #include <math.h>
 #include <string.h>
-#include <kernel/mod2.h>
+#include <Singular/mod2.h>
 #include <omalloc/omalloc.h>
 #include <kernel/structs.h>
 

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