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/**CFile****************************************************************
FileName [sswMan.c]
SystemName [ABC: Logic synthesis and verification system.]
PackageName [Inductive prover with constraints.]
Synopsis [Calls to the SAT solver.]
Author [Alan Mishchenko]
Affiliation [UC Berkeley]
Date [Ver. 1.0. Started - September 1, 2008.]
Revision [$Id: sswMan.c,v 1.00 2008/09/01 00:00:00 alanmi Exp $]
***********************************************************************/
#include "sswInt.h"
////////////////////////////////////////////////////////////////////////
/// DECLARATIONS ///
////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////
/// FUNCTION DEFINITIONS ///
////////////////////////////////////////////////////////////////////////
/**Function*************************************************************
Synopsis [Creates the manager.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
Ssw_Man_t * Ssw_ManCreate( Aig_Man_t * pAig, Ssw_Pars_t * pPars )
{
Ssw_Man_t * p;
// create interpolation manager
p = ALLOC( Ssw_Man_t, 1 );
memset( p, 0, sizeof(Ssw_Man_t) );
p->pPars = pPars;
p->pAig = pAig;
p->nFrames = pPars->nFramesK + 1;
Aig_ManFanoutStart( pAig );
// SAT solving
p->nSatVars = 1;
p->pSatVars = CALLOC( int, Aig_ManObjNumMax(p->pAig) );
p->vFanins = Vec_PtrAlloc( 100 );
p->vSimRoots = Vec_PtrAlloc( 1000 );
p->vSimClasses = Vec_PtrAlloc( 1000 );
// equivalences proved
// p->pReprsProved = CALLOC( Aig_Obj_t *, Aig_ManObjNumMax(p->pAig) );
p->pNodeToFraig = CALLOC( Aig_Obj_t *, Aig_ManObjNumMax(p->pAig) * p->nFrames );
return p;
}
/**Function*************************************************************
Synopsis [Prints stats of the manager.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
int Ssw_ManCountEquivs( Ssw_Man_t * p )
{
Aig_Obj_t * pObj;
int i, nEquivs = 0;
Aig_ManForEachObj( p->pAig, pObj, i )
// nEquivs += ( p->pReprsProved[i] != NULL );
nEquivs += ( Aig_ObjRepr(p->pAig, pObj) != NULL );
return nEquivs;
}
/**Function*************************************************************
Synopsis [Prints stats of the manager.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Ssw_ManPrintStats( Ssw_Man_t * p )
{
printf( "Parameters: Frames = %d. Conf limit = %d. Constrs = %d.\n",
p->pPars->nFramesK, p->pPars->nBTLimit, p->pPars->nConstrs );
printf( "AIG : PI = %d. PO = %d. Latch = %d. Node = %d.\n",
Saig_ManPiNum(p->pAig), Saig_ManPoNum(p->pAig), Saig_ManRegNum(p->pAig), Aig_ManNodeNum(p->pAig) );
printf( "SAT solver: Vars = %d.\n", p->nSatVars );
printf( "SAT calls : All = %6d. Unsat = %6d. Sat = %6d. Fail = %6d.\n",
p->nSatCalls, p->nSatCalls-p->nSatCallsSat-p->nSatFailsReal,
p->nSatCallsSat, p->nSatFailsReal );
printf( "Equivs : All = %6d.\n", Ssw_ManCountEquivs(p) );
printf( "Runtime statistics:\n" );
p->timeOther = p->timeTotal-p->timeBmc-p->timeReduce-p->timeSimSat-p->timeSat;
PRTP( "BMC ", p->timeBmc, p->timeTotal );
PRTP( "Spec reduce", p->timeReduce, p->timeTotal );
PRTP( "Sim SAT ", p->timeSimSat, p->timeTotal );
PRTP( "SAT solving", p->timeSat, p->timeTotal );
PRTP( " sat ", p->timeSatSat, p->timeTotal );
PRTP( " unsat ", p->timeSatUnsat, p->timeTotal );
PRTP( " undecided", p->timeSatUndec, p->timeTotal );
PRTP( "Other ", p->timeOther, p->timeTotal );
PRTP( "TOTAL ", p->timeTotal, p->timeTotal );
}
/**Function*************************************************************
Synopsis [Frees the manager.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Ssw_ManCleanup( Ssw_Man_t * p )
{
Aig_ManCleanMarkB( p->pAig );
if ( p->pFrames )
{
Aig_ManStop( p->pFrames );
p->pFrames = NULL;
}
if ( p->pSat )
{
sat_solver_delete( p->pSat );
p->pSat = NULL;
p->nSatVars = 0;
}
memset( p->pNodeToFraig, 0, sizeof(Aig_Obj_t *) * Aig_ManObjNumMax(p->pAig) * p->nFrames );
p->nConstrTotal = 0;
p->nConstrReduced = 0;
}
/**Function*************************************************************
Synopsis [Frees the manager.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Ssw_ManStop( Ssw_Man_t * p )
{
if ( p->pPars->fVerbose )
Ssw_ManPrintStats( p );
if ( p->ppClasses )
Ssw_ClassesStop( p->ppClasses );
Vec_PtrFree( p->vFanins );
Vec_PtrFree( p->vSimRoots );
Vec_PtrFree( p->vSimClasses );
FREE( p->pNodeToFraig );
// FREE( p->pReprsProved );
FREE( p->pSatVars );
free( p );
}
/**Function*************************************************************
Synopsis [Starts the SAT solver.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Ssw_ManStartSolver( Ssw_Man_t * p )
{
int Lit;
assert( p->pSat == NULL );
p->pSat = sat_solver_new();
sat_solver_setnvars( p->pSat, 10000 );
// var 0 is not used
// var 1 is reserved for const1 node - add the clause
Lit = toLit( 1 );
if ( p->pPars->fPolarFlip )
Lit = lit_neg( Lit );
sat_solver_addclause( p->pSat, &Lit, &Lit + 1 );
p->nSatVars = 2;
}
////////////////////////////////////////////////////////////////////////
/// END OF FILE ///
////////////////////////////////////////////////////////////////////////
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