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/**CFile****************************************************************
FileName [giaAbsPth.c]
SystemName [ABC: Logic synthesis and verification system.]
PackageName [Scalable AIG package.]
Synopsis [Interface to pthreads.]
Author [Alan Mishchenko]
Affiliation [UC Berkeley]
Date [Ver. 1.0. Started - June 20, 2005.]
Revision [$Id: giaAbsPth.c,v 1.00 2005/06/20 00:00:00 alanmi Exp $]
***********************************************************************/
#include "aig/ioa/ioa.h"
#include "proof/pdr/pdr.h"
// comment this out to disable pthreads
//#define ABC_USE_PTHREADS
#ifdef ABC_USE_PTHREADS
#ifdef WIN32
#include "../lib/pthread.h"
#else
#include <pthread.h>
#include <unistd.h>
#endif
#endif
ABC_NAMESPACE_IMPL_START
////////////////////////////////////////////////////////////////////////
/// DECLARATIONS ///
////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////
/// FUNCTION DEFINITIONS ///
////////////////////////////////////////////////////////////////////////
/**Function*************************************************************
Synopsis [Start and stop proving abstracted model.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
#ifndef ABC_USE_PTHREADS
void Gia_Ga2ProveAbsracted( char * pFileName, int fVerbose ) {}
void Gia_Ga2ProveCancel( int fVerbose ) {}
void Gia_Ga2ProveFinish( int fVerbose ) {}
int Gia_Ga2ProveCheck( int fVerbose ) { return 0; }
#else // pthreads are used
// information given to the thread
typedef struct Abs_Pair_t_
{
char * pFileName;
int fVerbose;
int RunId;
} Abs_Pair_t;
// the last valid thread
static int g_nRunIds = 0;
int Abs_CallBackToStop( int RunId ) { assert( RunId <= g_nRunIds ); return RunId < g_nRunIds; }
int Pdr_ManSolve_test( Aig_Man_t * pAig, Pdr_Par_t * pPars, Abc_Cex_t ** ppCex )
{
char * p = ABC_ALLOC( char, 111 );
while ( 1 )
{
if ( pPars->pFuncStop && pPars->pFuncStop(pPars->RunId) )
break;
}
ABC_FREE( p );
return -1;
}
static int g_fAbstractionProved = 0;
void * Abs_ProverThread( void * pArg )
{
Abs_Pair_t * pPair = (Abs_Pair_t *)pArg;
Pdr_Par_t Pars, * pPars = &Pars;
Aig_Man_t * pAig, * pTemp;
int RetValue;
pAig = Ioa_ReadAiger( pPair->pFileName, 0 );
if ( pAig == NULL )
Abc_Print( 1, "\nCannot open file \"%s\".\n", pPair->pFileName );
else
{
// synthesize abstraction
pAig = Aig_ManScl( pTemp = pAig, 1, 1, 0, -1, -1, 0, 0 );
Aig_ManStop( pTemp );
// call PDR
Pdr_ManSetDefaultParams( pPars );
pPars->fSilent = 1;
pPars->RunId = pPair->RunId;
pPars->pFuncStop = Abs_CallBackToStop;
RetValue = Pdr_ManSolve( pAig, pPars, NULL );
// RetValue = Pdr_ManSolve_test( pAig, pPars, NULL );
// update the result
g_fAbstractionProved = (RetValue == 1);
// free memory
Aig_ManStop( pAig );
// quit this thread
if ( pPair->fVerbose )
{
if ( RetValue == 1 )
Abc_Print( 1, "\nProved abstraction %d.\n", pPair->RunId );
else if ( RetValue == 0 )
Abc_Print( 1, "\nDisproved abstraction %d.\n", pPair->RunId );
else if ( RetValue == -1 )
Abc_Print( 1, "\nCancelled abstraction %d.\n", pPair->RunId );
else assert( 0 );
}
}
ABC_FREE( pPair->pFileName );
ABC_FREE( pPair );
// quit this thread
pthread_exit( NULL );
assert(0);
return NULL;
}
void Gia_Ga2ProveAbsracted( char * pFileName, int fVerbose )
{
Abs_Pair_t * pPair;
pthread_t ProverThread;
int RetValue;
assert( pFileName != NULL );
g_fAbstractionProved = 0;
// disable verbosity
fVerbose = 0;
// create thread
pPair = ABC_CALLOC( Abs_Pair_t, 1 );
pPair->pFileName = Abc_UtilStrsav( (void *)pFileName );
pPair->fVerbose = fVerbose;
pPair->RunId = ++g_nRunIds;
if ( fVerbose ) Abc_Print( 1, "\nTrying to prove abstraction %d.\n", pPair->RunId );
RetValue = pthread_create( &ProverThread, NULL, Abs_ProverThread, pPair );
assert( RetValue == 0 );
}
void Gia_Ga2ProveCancel( int fVerbose )
{
g_nRunIds++;
}
void Gia_Ga2ProveFinish( int fVerbose )
{
g_fAbstractionProved = 0;
}
int Gia_Ga2ProveCheck( int fVerbose )
{
return g_fAbstractionProved;
}
#endif
////////////////////////////////////////////////////////////////////////
/// END OF FILE ///
////////////////////////////////////////////////////////////////////////
ABC_NAMESPACE_IMPL_END
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