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authorAlan Mishchenko <alanmi@berkeley.edu>2008-01-30 20:01:00 -0800
committerAlan Mishchenko <alanmi@berkeley.edu>2008-01-30 20:01:00 -0800
commit0c6505a26a537dc911b6566f82d759521e527c08 (patch)
treef2687995efd4943fe3b1307fce7ef5942d0a57b3 /src/opt/fxu/fxuReduce.c
parent4d30a1e4f1edecff86d5066ce4653a370e59e5e1 (diff)
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Version abc80130_2
Diffstat (limited to 'src/opt/fxu/fxuReduce.c')
-rw-r--r--src/opt/fxu/fxuReduce.c12
1 files changed, 11 insertions, 1 deletions
diff --git a/src/opt/fxu/fxuReduce.c b/src/opt/fxu/fxuReduce.c
index 652d807b..0ab8a157 100644
--- a/src/opt/fxu/fxuReduce.c
+++ b/src/opt/fxu/fxuReduce.c
@@ -27,7 +27,7 @@
static int Fxu_CountPairDiffs( char * pCover, unsigned char pDiffs[] );
////////////////////////////////////////////////////////////////////////
-/// FUNCTION DEFITIONS ///
+/// FUNCTION DEFINITIONS ///
////////////////////////////////////////////////////////////////////////
/**Function*************************************************************
@@ -90,6 +90,16 @@ int Fxu_PreprocessCubePairs( Fxu_Matrix * p, Vec_Ptr_t * vCovers, int nPairsTota
pnPairCounters[ pnLitsDiff[k] ]++;
// determine what pairs to take starting from the lower
// so that there would be exactly pPairsMax pairs
+ if ( pnPairCounters[0] != 0 )
+ {
+ printf( "The SOPs of the nodes are not cube-free. Run \"bdd; sop\" before \"fx\".\n" );
+ return 0;
+ }
+ if ( pnPairCounters[1] != 0 )
+ {
+ printf( "The SOPs of the nodes are not SCC-free. Run \"bdd; sop\" before \"fx\".\n" );
+ return 0;
+ }
assert( pnPairCounters[0] == 0 ); // otherwise, covers are not dup-free
assert( pnPairCounters[1] == 0 ); // otherwise, covers are not SCC-free
nSum = 0;