From feedbc744955df2b142d6a0b9dc62814567f5fc2 Mon Sep 17 00:00:00 2001 From: Jannis Harder Date: Fri, 5 Aug 2022 14:28:13 +0200 Subject: read_cex: Faster parsing and care bits for verification --- src/sat/bmc/bmc.h | 4 +++- src/sat/bmc/bmcCexCare.c | 38 ++++++++++++++++++++++++++++++++++++-- src/sat/bmc/bmcCexTools.c | 47 +++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 86 insertions(+), 3 deletions(-) (limited to 'src/sat/bmc') diff --git a/src/sat/bmc/bmc.h b/src/sat/bmc/bmc.h index 12439faa..2c843392 100644 --- a/src/sat/bmc/bmc.h +++ b/src/sat/bmc/bmc.h @@ -219,7 +219,8 @@ extern int Gia_ManBmcPerform( Gia_Man_t * p, Bmc_AndPar_t * pPars extern Abc_Cex_t * Bmc_CexCareExtendToObjects( Gia_Man_t * p, Abc_Cex_t * pCex, Abc_Cex_t * pCexCare ); extern Abc_Cex_t * Bmc_CexCareMinimize( Aig_Man_t * p, int nRealPis, Abc_Cex_t * pCex, int nTryCexes, int fCheck, int fVerbose ); extern Abc_Cex_t * Bmc_CexCareMinimizeAig( Gia_Man_t * p, int nRealPis, Abc_Cex_t * pCex, int nTryCexes, int fCheck, int fVerbose ); -extern void Bmc_CexCareVerify( Aig_Man_t * p, Abc_Cex_t * pCex, Abc_Cex_t * pCexMin, int fVerbose ); +extern int Bmc_CexCareVerify( Aig_Man_t * p, Abc_Cex_t * pCex, Abc_Cex_t * pCexMin, int fVerbose ); +extern int Bmc_CexCareVerifyAnyPo( Aig_Man_t * p, Abc_Cex_t * pCex, Abc_Cex_t * pCexMin, int fVerbose ); extern Abc_Cex_t * Bmc_CexCareSatBasedMinimize( Aig_Man_t * p, int nRealPis, Abc_Cex_t * pCex, int fHighEffort, int fCheck, int fVerbose ); extern Abc_Cex_t * Bmc_CexCareSatBasedMinimizeAig( Gia_Man_t * p, Abc_Cex_t * pCex, int fHighEffort, int fVerbose ); /*=== bmcCexCut.c ==========================================================*/ @@ -230,6 +231,7 @@ extern Abc_Cex_t * Saig_ManCexMinPerform( Aig_Man_t * pAig, Abc_Cex_t * pC /*=== bmcCexTool.c ==========================================================*/ extern void Bmc_CexPrint( Abc_Cex_t * pCex, int nRealPis, int fVerbose ); extern int Bmc_CexVerify( Gia_Man_t * p, Abc_Cex_t * pCex, Abc_Cex_t * pCexCare ); +extern int Bmc_CexVerifyAnyPo( Gia_Man_t * p, Abc_Cex_t * pCex, Abc_Cex_t * pCexCare ); /*=== bmcICheck.c ==========================================================*/ extern void Bmc_PerformICheck( Gia_Man_t * p, int nFramesMax, int nTimeOut, int fEmpty, int fVerbose ); extern Vec_Int_t * Bmc_PerformISearch( Gia_Man_t * p, int nFramesMax, int nTimeOut, int fReverse, int fBackTopo, int fDump, int fVerbose ); diff --git a/src/sat/bmc/bmcCexCare.c b/src/sat/bmc/bmcCexCare.c index c274b04c..d9a677c3 100644 --- a/src/sat/bmc/bmcCexCare.c +++ b/src/sat/bmc/bmcCexCare.c @@ -455,8 +455,9 @@ Abc_Cex_t * Bmc_CexCareSatBasedMinimize( Aig_Man_t * p, int nRealPis, Abc_Cex_t SeeAlso [] ***********************************************************************/ -void Bmc_CexCareVerify( Aig_Man_t * p, Abc_Cex_t * pCex, Abc_Cex_t * pCexMin, int fVerbose ) +int Bmc_CexCareVerify( Aig_Man_t * p, Abc_Cex_t * pCex, Abc_Cex_t * pCexMin, int fVerbose ) { + int result; Gia_Man_t * pGia = Gia_ManFromAigSimple( p ); if ( fVerbose ) { @@ -465,11 +466,13 @@ void Bmc_CexCareVerify( Aig_Man_t * p, Abc_Cex_t * pCex, Abc_Cex_t * pCexMin, in printf( "Minimized: " ); Bmc_CexPrint( pCexMin, Gia_ManPiNum(pGia), 0 ); } - if ( !Bmc_CexVerify( pGia, pCex, pCexMin ) ) + result = Bmc_CexVerify( pGia, pCex, pCexMin ); + if ( !result ) printf( "Counter-example verification has failed.\n" ); else printf( "Counter-example verification succeeded.\n" ); Gia_ManStop( pGia ); + return result; } /* { @@ -480,6 +483,37 @@ void Bmc_CexCareVerify( Aig_Man_t * p, Abc_Cex_t * pCex, Abc_Cex_t * pCexMin, in } */ +/**Function************************************************************* + + Synopsis [Verifies the care set of the counter-example.] + + Description [] + + SideEffects [] + + SeeAlso [] + +***********************************************************************/ +int Bmc_CexCareVerifyAnyPo( Aig_Man_t * p, Abc_Cex_t * pCex, Abc_Cex_t * pCexMin, int fVerbose ) +{ + int iPo; + Gia_Man_t * pGia = Gia_ManFromAigSimple( p ); + if ( fVerbose ) + { + printf( "Original : " ); + Bmc_CexPrint( pCex, Gia_ManPiNum(pGia), 0 ); + printf( "Minimized: " ); + Bmc_CexPrint( pCexMin, Gia_ManPiNum(pGia), 0 ); + } + iPo = Bmc_CexVerifyAnyPo( pGia, pCex, pCexMin ); + if ( iPo < 0 ) + printf( "Counter-example verification has failed.\n" ); + else + printf( "Counter-example verification succeeded.\n" ); + Gia_ManStop( pGia ); + return iPo; +} + //////////////////////////////////////////////////////////////////////// /// END OF FILE /// //////////////////////////////////////////////////////////////////////// diff --git a/src/sat/bmc/bmcCexTools.c b/src/sat/bmc/bmcCexTools.c index 6cc29857..6bea6fc5 100644 --- a/src/sat/bmc/bmcCexTools.c +++ b/src/sat/bmc/bmcCexTools.c @@ -374,6 +374,53 @@ int Bmc_CexVerify( Gia_Man_t * p, Abc_Cex_t * pCex, Abc_Cex_t * pCexCare ) return Gia_ObjTerSimGet1(pObj); } +/**Function************************************************************* + + Synopsis [Verifies the care set of the counter-example for an arbitrary PO.] + + Description [] + + SideEffects [] + + SeeAlso [] + +***********************************************************************/ +int Bmc_CexVerifyAnyPo( Gia_Man_t * p, Abc_Cex_t * pCex, Abc_Cex_t * pCexCare ) +{ + Gia_Obj_t * pObj; + int i, k; +// assert( pCex->nRegs > 0 ); +// assert( pCexCare->nRegs == 0 ); + Gia_ObjTerSimSet0( Gia_ManConst0(p) ); + Gia_ManForEachRi( p, pObj, k ) + Gia_ObjTerSimSet0( pObj ); + for ( i = 0; i <= pCex->iFrame; i++ ) + { + Gia_ManForEachPi( p, pObj, k ) + { + if ( !Abc_InfoHasBit( pCexCare->pData, pCexCare->nRegs + i * pCexCare->nPis + k ) ) + Gia_ObjTerSimSetX( pObj ); + else if ( Abc_InfoHasBit( pCex->pData, pCex->nRegs + i * pCex->nPis + k ) ) + Gia_ObjTerSimSet1( pObj ); + else + Gia_ObjTerSimSet0( pObj ); + } + Gia_ManForEachRo( p, pObj, k ) + Gia_ObjTerSimRo( p, pObj ); + Gia_ManForEachAnd( p, pObj, k ) + Gia_ObjTerSimAnd( pObj ); + Gia_ManForEachCo( p, pObj, k ) + Gia_ObjTerSimCo( pObj ); + } + for (i = 0; i < Gia_ManPoNum(p) - Gia_ManConstrNum(p); i++) + { + pObj = Gia_ManPo( p, i ); + if (Gia_ObjTerSimGet1(pObj)) + return i; + } + return -1; +} + /**Function************************************************************* Synopsis [Computes internal states of the CEX.] -- cgit v1.2.3