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/**CFile****************************************************************
FileName [pdr.c]
SystemName [ABC: Logic synthesis and verification system.]
PackageName [Netlist representation.]
Synopsis [Manager procedures.]
Author [Alan Mishchenko]
Affiliation [UC Berkeley]
Date [Ver. 1.0. Started - November 20, 2010.]
Revision [$Id: pdr.c,v 1.00 2010/11/20 00:00:00 alanmi Exp $]
***********************************************************************/
#include "pdrInt.h"
#include "ssw.h"
ABC_NAMESPACE_IMPL_START
////////////////////////////////////////////////////////////////////////
/// DECLARATIONS ///
////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////
/// FUNCTION DEFINITIONS ///
////////////////////////////////////////////////////////////////////////
/**Function*************************************************************
Synopsis [Creates manager.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
Pdr_Man_t * Pdr_ManStart( Aig_Man_t * pAig, Pdr_Par_t * pPars, Vec_Int_t * vPrioInit )
{
Pdr_Man_t * p;
p = ABC_CALLOC( Pdr_Man_t, 1 );
p->pPars = pPars;
p->pAig = pAig;
p->vSolvers = Vec_PtrAlloc( 0 );
p->vClauses = Vec_VecAlloc( 0 );
p->pQueue = NULL;
p->pOrder = ABC_ALLOC( int, Aig_ManRegNum(pAig) );
p->vActVars = Vec_IntAlloc( 256 );
// internal use
p->vPrio = vPrioInit ? vPrioInit : Vec_IntStart( Aig_ManRegNum(pAig) ); // priority flops
p->vLits = Vec_IntAlloc( 100 ); // array of literals
p->vCiObjs = Vec_IntAlloc( 100 ); // cone leaves
p->vCoObjs = Vec_IntAlloc( 100 ); // cone roots
p->vCiVals = Vec_IntAlloc( 100 ); // cone leaf values
p->vCoVals = Vec_IntAlloc( 100 ); // cone root values
p->vNodes = Vec_IntAlloc( 100 ); // cone nodes
p->vUndo = Vec_IntAlloc( 100 ); // cone undos
p->vVisits = Vec_IntAlloc( 100 ); // intermediate
p->vCi2Rem = Vec_IntAlloc( 100 ); // CIs to be removed
p->vRes = Vec_IntAlloc( 100 ); // final result
// additional AIG data-members
if ( pAig->pFanData == NULL )
Aig_ManFanoutStart( pAig );
if ( pAig->pTerSimData == NULL )
pAig->pTerSimData = ABC_CALLOC( unsigned, 1 + (Aig_ManObjNumMax(pAig) / 16) );
p->timeStart = clock();
return p;
}
/**Function*************************************************************
Synopsis [Frees manager.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Pdr_ManStop( Pdr_Man_t * p )
{
Pdr_Set_t * pCla;
sat_solver * pSat;
int i, k;
if ( p->pPars->fVerbose )
{
printf( "Block =%5d Oblig =%6d Clause =%6d Call =%6d (sat=%.1f%%) Start =%4d\n",
p->nBlocks, p->nObligs, p->nCubes, p->nCalls, 100.0 * p->nCallsS / p->nCalls, p->nStarts );
ABC_PRTP( "SAT solving", p->tSat, p->tTotal );
ABC_PRTP( " unsat ", p->tSatUnsat, p->tTotal );
ABC_PRTP( " sat ", p->tSatSat, p->tTotal );
ABC_PRTP( "Generalize ", p->tGeneral, p->tTotal );
ABC_PRTP( "Push clause", p->tPush, p->tTotal );
ABC_PRTP( "Ternary sim", p->tTsim, p->tTotal );
ABC_PRTP( "Containment", p->tContain, p->tTotal );
ABC_PRTP( "CNF compute", p->tCnf, p->tTotal );
ABC_PRTP( "TOTAL ", p->tTotal, p->tTotal );
}
Vec_PtrForEachEntry( sat_solver *, p->vSolvers, pSat, i )
sat_solver_delete( pSat );
Vec_PtrFree( p->vSolvers );
Vec_VecForEachEntry( Pdr_Set_t *, p->vClauses, pCla, i, k )
Pdr_SetDeref( pCla );
Vec_VecFree( p->vClauses );
Pdr_QueueStop( p );
ABC_FREE( p->pOrder );
Vec_IntFree( p->vActVars );
// static CNF
Cnf_DataFree( p->pCnf1 );
Vec_IntFreeP( &p->vVar2Reg );
// dynamic CNF
Cnf_DataFree( p->pCnf2 );
if ( p->pvId2Vars )
for ( i = 0; i < Aig_ManObjNumMax(p->pAig); i++ )
Vec_IntFreeP( &p->pvId2Vars[i] );
ABC_FREE( p->pvId2Vars );
Vec_VecFreeP( (Vec_Vec_t **)&p->vVar2Ids );
// internal use
Vec_IntFreeP( &p->vPrio ); // priority flops
Vec_IntFree( p->vLits ); // array of literals
Vec_IntFree( p->vCiObjs ); // cone leaves
Vec_IntFree( p->vCoObjs ); // cone roots
Vec_IntFree( p->vCiVals ); // cone leaf values
Vec_IntFree( p->vCoVals ); // cone root values
Vec_IntFree( p->vNodes ); // cone nodes
Vec_IntFree( p->vUndo ); // cone undos
Vec_IntFree( p->vVisits ); // intermediate
Vec_IntFree( p->vCi2Rem ); // CIs to be removed
Vec_IntFree( p->vRes ); // final result
// additional AIG data-members
if ( p->pAig->pFanData != NULL )
Aig_ManFanoutStop( p->pAig );
if ( p->pAig->pTerSimData != NULL )
ABC_FREE( p->pAig->pTerSimData );
ABC_FREE( p );
}
/**Function*************************************************************
Synopsis [Derives counter-example.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
Abc_Cex_t * Pdr_ManDeriveCex( Pdr_Man_t * p )
{
Abc_Cex_t * pCex;
Pdr_Obl_t * pObl;
int i, f, Lit, nFrames = 0;
// count the number of frames
for ( pObl = p->pQueue; pObl; pObl = pObl->pNext )
nFrames++;
// create the counter-example
pCex = Ssw_SmlAllocCounterExample( Aig_ManRegNum(p->pAig), Saig_ManPiNum(p->pAig), nFrames );
pCex->iPo = (p->pPars->iOutput==-1)? 0 : p->pPars->iOutput;
pCex->iFrame = nFrames-1;
for ( pObl = p->pQueue, f = 0; pObl; pObl = pObl->pNext, f++ )
for ( i = pObl->pState->nLits; i < pObl->pState->nTotal; i++ )
{
Lit = pObl->pState->Lits[i];
if ( lit_sign(Lit) )
continue;
assert( lit_var(Lit) < pCex->nPis );
Aig_InfoSetBit( pCex->pData, pCex->nRegs + f * pCex->nPis + lit_var(Lit) );
}
assert( f == nFrames );
return pCex;
}
////////////////////////////////////////////////////////////////////////
/// END OF FILE ///
////////////////////////////////////////////////////////////////////////
ABC_NAMESPACE_IMPL_END
|
