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working on pdr with wla

This commit is contained in:
Yen-Sheng Ho 2017-02-19 10:22:15 -08:00
parent 6cf289dadd
commit 840f5d1ca8
1 changed files with 23 additions and 2 deletions
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25
src/base/wlc/wlcAbs.c
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@ -20,6 +20,7 @@
#include "wlc.h"
#include "proof/pdr/pdr.h"
#include "proof/pdr/pdrInt.h"
#include "aig/gia/giaAig.h"
#include "sat/bmc/bmc.h"
@ -29,6 +30,10 @@ ABC_NAMESPACE_IMPL_START
/// DECLARATIONS ///
////////////////////////////////////////////////////////////////////////
extern Vec_Vec_t * IPdr_ManSaveClauses( Pdr_Man_t * p, int fDropLast );
extern int IPdr_ManRestore( Pdr_Man_t * p, Vec_Vec_t * vClauses );
extern int IPdr_ManSolveInt( Pdr_Man_t * p );
////////////////////////////////////////////////////////////////////////
/// FUNCTION DEFINITIONS ///
////////////////////////////////////////////////////////////////////////
@ -297,6 +302,8 @@ static int Wlc_NtkRemoveFromAbstraction( Wlc_Ntk_t * p, Vec_Int_t * vRefine, Vec
int Wlc_NtkPdrAbs( Wlc_Ntk_t * p, Wlc_Par_t * pPars )
{
abctime clk = Abc_Clock();
Pdr_Man_t * pPdr;
Vec_Vec_t * vClauses = NULL;
int nIters, nNodes, nDcFlops, RetValue = -1;
// start the bitmap to mark objects that cannot be abstracted because of refinement
// currently, this bitmap is empty because abstraction begins without refinement
@ -347,9 +354,14 @@ int Wlc_NtkPdrAbs( Wlc_Ntk_t * p, Wlc_Par_t * pPars )
// try to prove abstracted GIA by converting it to AIG and calling PDR
pAig = Gia_ManToAigSimple( pGia );
RetValue = Pdr_ManSolve( pAig, pPdrPars );
pPdr = Pdr_ManStart( pAig, pPdrPars, NULL );
if (vClauses)
IPdr_ManRestore(pPdr, vClauses);
RetValue = IPdr_ManSolveInt( pPdr );
pCex = pAig->pSeqModel; pAig->pSeqModel = NULL;
Aig_ManStop( pAig );
// consider outcomes
if ( pCex == NULL )
@ -357,6 +369,8 @@ int Wlc_NtkPdrAbs( Wlc_Ntk_t * p, Wlc_Par_t * pPars )
assert( RetValue ); // proved or undecided
Gia_ManStop( pGia );
Vec_IntFree( vPisNew );
Pdr_ManStop( pPdr );
Aig_ManStop( pAig );
break;
}
@ -367,15 +381,22 @@ int Wlc_NtkPdrAbs( Wlc_Ntk_t * p, Wlc_Par_t * pPars )
if ( vRefine == NULL ) // real CEX
{
Abc_CexFree( pCex ); // return CEX in the future
Pdr_ManStop( pPdr );
Aig_ManStop( pAig );
break;
}
// spurious CEX, continue solving
vClauses = IPdr_ManSaveClauses( pPdr, 0 );
Pdr_ManStop( pPdr );
// update the set of objects to be un-abstracted
nNodes = Wlc_NtkRemoveFromAbstraction( p, vRefine, vUnmark );
if ( pPars->fVerbose )
printf( "Refinement of CEX in frame %d came up with %d un-abstacted PPIs, whose MFFCs include %d objects.\n", pCex->iFrame, Vec_IntSize(vRefine), nNodes );
Vec_IntFree( vRefine );
Abc_CexFree( pCex );
Aig_ManStop( pAig );
}
Vec_BitFree( vUnmark );