diff options
Diffstat (limited to 'src/opt')
| -rw-r--r-- | src/opt/fxu/fxuCreate.c | 3 | ||||
| -rw-r--r-- | src/opt/fxu/fxuReduce.c | 10 |
2 files changed, 12 insertions, 1 deletions
diff --git a/src/opt/fxu/fxuCreate.c b/src/opt/fxu/fxuCreate.c index e56c58f3..99942a88 100644 --- a/src/opt/fxu/fxuCreate.c +++ b/src/opt/fxu/fxuCreate.c @@ -179,7 +179,8 @@ Fxu_Matrix * Fxu_CreateMatrix( Fxu_Data_t * pData ) // consider the case when cube pairs should be preprocessed // before adding them to the set of divisors if ( nPairsTotal > pData->nPairsMax ) - Fxu_PreprocessCubePairs( p, pData->vSops, nPairsTotal, pData->nPairsMax ); + if ( !Fxu_PreprocessCubePairs( p, pData->vSops, nPairsTotal, pData->nPairsMax ) ) + return NULL; // add the var pairs to the heap Fxu_MatrixComputeSingles( p ); diff --git a/src/opt/fxu/fxuReduce.c b/src/opt/fxu/fxuReduce.c index 3f3bc8fc..0ab8a157 100644 --- a/src/opt/fxu/fxuReduce.c +++ b/src/opt/fxu/fxuReduce.c @@ -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; |