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diff --git a/src/aig/ssw_old/sswMan.c b/src/aig/ssw_old/sswMan.c
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--- a/src/aig/ssw_old/sswMan.c
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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;
- // prepare the sequential AIG
- assert( Saig_ManRegNum(pAig) > 0 );
- Aig_ManFanoutStart( pAig );
- Aig_ManSetPioNumbers( pAig );
- // 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;
- p->pNodeToFrames = CALLOC( Aig_Obj_t *, Aig_ManObjNumMax(p->pAig) * p->nFrames );
- // SAT solving
- p->vSatVars = Vec_IntStart( Aig_ManObjNumMax(p->pAig) * (p->nFrames+1) );
- p->vFanins = Vec_PtrAlloc( 100 );
- // SAT solving (latch corr only)
- p->vUsedNodes = Vec_PtrAlloc( 1000 );
- p->vUsedPis = Vec_PtrAlloc( 1000 );
- p->vCommon = Vec_PtrAlloc( 100 );
- p->iOutputLit = -1;
- // allocate storage for sim pattern
- p->nPatWords = Aig_BitWordNum( Saig_ManPiNum(pAig) * p->nFrames + Saig_ManRegNum(pAig) );
- p->pPatWords = ALLOC( unsigned, p->nPatWords );
- p->pPatWords2 = ALLOC( unsigned, p->nPatWords );
- 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 += ( 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 )
-{
- double nMemory = 1.0*Aig_ManObjNumMax(p->pAig)*p->nFrames*(2*sizeof(int)+2*sizeof(void*))/(1<<20);
-
- printf( "Parameters: F = %d. AddF = %d. C-lim = %d. Constr = %d. MaxLev = %d. Mem = %0.2f Mb.\n",
- p->pPars->nFramesK, p->pPars->nFramesAddSim, p->pPars->nBTLimit, p->pPars->nConstrs, p->pPars->nMaxLevs, nMemory );
- printf( "AIG : PI = %d. PO = %d. Latch = %d. Node = %d. Ave SAT vars = %d.\n",
- Saig_ManPiNum(p->pAig), Saig_ManPoNum(p->pAig), Saig_ManRegNum(p->pAig), Aig_ManNodeNum(p->pAig),
- p->nSatVarsTotal/p->pPars->nIters );
- printf( "SAT calls : Proof = %d. Cex = %d. Fail = %d. Equivs = %d. Str = %d.\n",
- p->nSatProof, p->nSatCallsSat, p->nSatFailsTotal, Ssw_ManCountEquivs(p), p->nStrangers );
- printf( "SAT solver: Vars = %d. Max cone = %d. Recycles = %d. Rounds = %d.\n",
- p->nSatVars, p->nConeMax, p->nRecycles, p->nSimRounds );
- printf( "NBeg = %d. NEnd = %d. (Gain = %6.2f %%). RBeg = %d. REnd = %d. (Gain = %6.2f %%).\n",
- p->nNodesBeg, p->nNodesEnd, 100.0*(p->nNodesBeg-p->nNodesEnd)/(p->nNodesBeg?p->nNodesBeg:1),
- p->nRegsBeg, p->nRegsEnd, 100.0*(p->nRegsBeg-p->nRegsEnd)/(p->nRegsBeg?p->nRegsBeg:1) );
-
- p->timeOther = p->timeTotal-p->timeBmc-p->timeReduce-p->timeMarkCones-p->timeSimSat-p->timeSat;
- PRTP( "BMC ", p->timeBmc, p->timeTotal );
- PRTP( "Spec reduce", p->timeReduce, p->timeTotal );
- PRTP( "Mark cones ", p->timeMarkCones, p->timeTotal );
- PRTP( "Sim SAT ", p->timeSimSat, p->timeTotal );
- PRTP( "SAT solving", p->timeSat, p->timeTotal );
- PRTP( " unsat ", p->timeSatUnsat, p->timeTotal );
- PRTP( " sat ", p->timeSatSat, 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 )
-{
- if ( p->pFrames )
- {
- Aig_ManStop( p->pFrames );
- p->pFrames = NULL;
- memset( p->pNodeToFrames, 0, sizeof(Aig_Obj_t *) * Aig_ManObjNumMax(p->pAig) * p->nFrames );
- }
- if ( p->pSat )
- {
- int i;
-// printf( "Vars = %d. Clauses = %d. Learnts = %d.\n", p->pSat->size, p->pSat->clauses.size, p->pSat->learnts.size );
- p->nSatVarsTotal += p->pSat->size;
- sat_solver_delete( p->pSat );
- p->pSat = NULL;
-// memset( p->pSatVars, 0, sizeof(int) * Aig_ManObjNumMax(p->pAig) * (p->nFrames+1) );
- for ( i = 0; i < Vec_IntSize(p->vSatVars); i++ )
- p->vSatVars->pArray[i] = 0;
- }
- if ( p->vSimInfo )
- {
- Vec_PtrFree( p->vSimInfo );
- p->vSimInfo = NULL;
- }
- p->nConstrTotal = 0;
- p->nConstrReduced = 0;
-}
-
-/**Function*************************************************************
-
- Synopsis [Frees the manager.]
-
- Description []
-
- SideEffects []
-
- SeeAlso []
-
-***********************************************************************/
-void Ssw_ManStop( Ssw_Man_t * p )
-{
- Aig_ManCleanMarkA( p->pAig );
- Aig_ManCleanMarkB( p->pAig );
- if ( p->pPars->fVerbose )
- Ssw_ManPrintStats( p );
- if ( p->ppClasses )
- Ssw_ClassesStop( p->ppClasses );
- if ( p->pSml )
- Ssw_SmlStop( p->pSml );
- Vec_PtrFree( p->vFanins );
- Vec_PtrFree( p->vUsedNodes );
- Vec_PtrFree( p->vUsedPis );
- Vec_IntFree( p->vSatVars );
- Vec_PtrFree( p->vCommon );
- FREE( p->pNodeToFrames );
- FREE( p->pPatWords );
- FREE( p->pPatWords2 );
- 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, 1000 );
- // var 0 is not used
- // var 1 is reserved for const1 node - add the clause
- p->nSatVars = 1;
- Lit = toLit( p->nSatVars );
- if ( p->pPars->fPolarFlip )
- Lit = lit_neg( Lit );
- sat_solver_addclause( p->pSat, &Lit, &Lit + 1 );
- Ssw_ObjSetSatNum( p, Aig_ManConst1(p->pAig), p->nSatVars++ );
-
- Vec_PtrClear( p->vUsedNodes );
- Vec_PtrClear( p->vUsedPis );
-}
-
-////////////////////////////////////////////////////////////////////////
-/// END OF FILE ///
-////////////////////////////////////////////////////////////////////////
-
-
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