diff options
Diffstat (limited to 'src/base/wlc/wlcAbs.c')
| -rw-r--r-- | src/base/wlc/wlcAbs.c | 36 |
1 files changed, 33 insertions, 3 deletions
diff --git a/src/base/wlc/wlcAbs.c b/src/base/wlc/wlcAbs.c index fdc04e50..776770de 100644 --- a/src/base/wlc/wlcAbs.c +++ b/src/base/wlc/wlcAbs.c @@ -33,6 +33,7 @@ ABC_NAMESPACE_IMPL_START extern Vec_Vec_t * IPdr_ManSaveClauses( Pdr_Man_t * p, int fDropLast ); extern int IPdr_ManRestore( Pdr_Man_t * p, Vec_Vec_t * vClauses, Vec_Int_t * vMap ); extern int IPdr_ManSolveInt( Pdr_Man_t * p, int fCheckClauses, int fPushClauses ); +extern int IPdr_ManCheckCombUnsat( Pdr_Man_t * p ); typedef struct Int_Pair_t_ Int_Pair_t; struct Int_Pair_t_ @@ -1111,20 +1112,49 @@ int Wlc_NtkPdrAbs( Wlc_Ntk_t * p, Wlc_Par_t * pPars ) Gia_ManPrintStats( pGia, NULL ); } Wlc_NtkFree( pAbs ); + // Gia_AigerWrite( pGia, "abs.aig", 0, 0 ); // try to prove abstracted GIA by converting it to AIG and calling PDR pAig = Gia_ManToAigSimple( pGia ); - pPdr = Pdr_ManStart( pAig, pPdrPars, NULL ); - clk2 = Abc_Clock(); + if ( vClauses && pPars->fCheckCombUnsat ) + { + clk2 = Abc_Clock(); + + Pdr_Man_t * pPdr2; + pPdrPars->fVerbose = 0; + pPdr2 = Pdr_ManStart( pAig, pPdrPars, NULL ); + RetValue = IPdr_ManCheckCombUnsat( pPdr2 ); + Pdr_ManStop( pPdr2 ); + pPdrPars->fVerbose = pPars->fPdrVerbose; + + tPdr += Abc_Clock() - clk2; + + if ( RetValue == 1 ) + { + if ( pPars->fVerbose ) + Abc_PrintTime( 1, "ABS becomes combinationally UNSAT. Time", Abc_Clock() - clk2 ); + Gia_ManStop( pGia ); + Vec_IntFree( vPisNew ); + Aig_ManStop( pAig ); + break; + } + + if ( pPars->fVerbose ) + Abc_PrintTime( 1, "Check comb. unsat failed. Time", Abc_Clock() - clk2 ); + } + + clk2 = Abc_Clock(); + pPdr = Pdr_ManStart( pAig, pPdrPars, NULL ); if ( vClauses ) { assert( Vec_VecSize( vClauses) >= 2 ); IPdr_ManRestore( pPdr, vClauses, vMap ); } Vec_IntFreeP( &vMap ); - RetValue = IPdr_ManSolveInt( pPdr, pPars->fCheckClauses, pPars->fPushClauses ); + if ( !vClauses || RetValue != 1 ) + RetValue = IPdr_ManSolveInt( pPdr, pPars->fCheckClauses, pPars->fPushClauses ); pPdr->tTotal += Abc_Clock() - clk2; tPdr += pPdr->tTotal; |