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| author | Niklas Een <niklas@een.se> | 2012-10-30 12:38:57 -0700 |
|---|---|---|
| committer | Niklas Een <niklas@een.se> | 2012-10-30 12:38:57 -0700 |
| commit | e353c4b75cb594d21b9060cbaf26114504513cd8 (patch) | |
| tree | a0d3119ba2c35f909fc25405fed700c93300922d /src/proof/cec | |
| parent | c3168ba661a06022654aae11693f08368ec15acc (diff) | |
| parent | 9b8d3628541cb30ad99b104f6449d48f3546193a (diff) | |
| download | abc-e353c4b75cb594d21b9060cbaf26114504513cd8.tar.gz abc-e353c4b75cb594d21b9060cbaf26114504513cd8.tar.bz2 abc-e353c4b75cb594d21b9060cbaf26114504513cd8.zip | |
Merge
Diffstat (limited to 'src/proof/cec')
| -rw-r--r-- | src/proof/cec/cec.h | 1 | ||||
| -rw-r--r-- | src/proof/cec/cecCorr.c | 13 |
2 files changed, 14 insertions, 0 deletions
diff --git a/src/proof/cec/cec.h b/src/proof/cec/cec.h index 10b06c28..65d2e24e 100644 --- a/src/proof/cec/cec.h +++ b/src/proof/cec/cec.h @@ -144,6 +144,7 @@ struct Cec_ParCor_t_ int fUseCSat; // use circuit-based solver // int fFirstStop; // stop on the first sat output int fUseSmartCnf; // use smart CNF computation + int fStopWhenGone; // quit when PO is not a candidate constant int fVerboseFlops; // verbose stats int fVeryVerbose; // verbose stats int fVerbose; // verbose stats diff --git a/src/proof/cec/cecCorr.c b/src/proof/cec/cecCorr.c index f35cd952..f3a84d3a 100644 --- a/src/proof/cec/cecCorr.c +++ b/src/proof/cec/cecCorr.c @@ -753,6 +753,7 @@ void Cec_ManRefinedClassPrintStats( Gia_Man_t * p, Vec_Str_t * vStatus, int iIte nFail++; } Abc_Print( 1, "p =%6d d =%6d f =%6d ", nProve, nDispr, nFail ); + Abc_Print( 1, "%c ", Gia_ObjIsConst( p, Gia_ObjFaninId0p(p, Gia_ManPo(p, 0)) ) ? '+' : '-' ); Abc_PrintTime( 1, "T", Time ); } @@ -950,6 +951,14 @@ int Cec_ManLSCorrespondenceClasses( Gia_Man_t * pAig, Cec_ParCor_t * pPars ) //Gia_ManEquivPrintClasses( pAig, 1, 0 ); if ( pPars->pFunc ) ((int (*)(void *))pPars->pFunc)( pPars->pData ); + // quit if const is no longer there + if ( pPars->fStopWhenGone && Gia_ManPoNum(pAig) == 1 && !Gia_ObjIsConst( pAig, Gia_ObjFaninId0p(pAig, Gia_ManPo(pAig, 0)) ) ) + { + printf( "Iterative refinement is stopped after iteration %d\n", r ); + printf( "because the property output is no longer a candidate constant.\n" ); + Cec_ManSimStop( pSim ); + return 0; + } } if ( pPars->fVerbose ) Cec_ManRefinedClassPrintStats( pAig, NULL, r+1, clock() - clk ); @@ -1071,7 +1080,11 @@ Gia_Man_t * Cec_ManLSCorrespondence( Gia_Man_t * pAig, Cec_ParCor_t * pPars ) ABC_FREE( pAig->pReprs ); ABC_FREE( pAig->pNexts ); if ( pPars->nPrefix == 0 ) + { RetValue = Cec_ManLSCorrespondenceClasses( pAig, pPars ); + if ( RetValue == 0 ) + return Gia_ManDup( pAig ); + } else { // compute the cycles AIG |