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Scalable gate-level abstraction.

This commit is contained in:
Alan Mishchenko 2012-07-31 00:00:34 -07:00
parent 51d5055e68
commit b20ca62e00
1 changed files with 160 additions and 51 deletions
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211
src/aig/gia/giaAbsGla2.c
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@ -46,7 +46,7 @@ struct Ga2_Man_t_
Vec_Int_t * vIds; // abstraction ID for each GIA object
Vec_Int_t * vAbs; // array of abstracted objects
Vec_Int_t * vValues; // array of objects with abstraction ID assigned
Vec_Int_t * vProofIds; // proof IDs for these objects (1-to-1 with vValues)
Vec_Int_t * vProofIds; // mapping of GIA objects into their proof IDs
int nProofIds; // the counter of proof IDs
int LimAbs; // limit value for starting abstraction objects
int LimPpi; // limit value for starting PPI objects
@ -82,8 +82,8 @@ static inline Vec_Int_t * Ga2_ObjLeaves( Gia_Man_t * p, Gia_Obj_t * pObj )
static inline int Ga2_ObjId( Ga2_Man_t * p, Gia_Obj_t * pObj ) { return Vec_IntEntry(p->vIds, Gia_ObjId(p->pGia, pObj)); }
static inline void Ga2_ObjSetId( Ga2_Man_t * p, Gia_Obj_t * pObj, int i ) { Vec_IntWriteEntry(p->vIds, Gia_ObjId(p->pGia, pObj), i); }
static inline Vec_Int_t * Ga2_ObjCnf0( Ga2_Man_t * p, Gia_Obj_t * pObj ) { assert(Ga2_ObjId(p,pObj)); return Vec_PtrEntry(p->vCnfs, (Ga2_ObjId(p,pObj) << 1) ); }
static inline Vec_Int_t * Ga2_ObjCnf1( Ga2_Man_t * p, Gia_Obj_t * pObj ) { assert(Ga2_ObjId(p,pObj)); return Vec_PtrEntry(p->vCnfs, (Ga2_ObjId(p,pObj) << 1)+1); }
static inline Vec_Int_t * Ga2_ObjCnf0( Ga2_Man_t * p, Gia_Obj_t * pObj ) { assert(Ga2_ObjId(p,pObj)); return Vec_PtrEntry( p->vCnfs, 2*Ga2_ObjId(p,pObj) ); }
static inline Vec_Int_t * Ga2_ObjCnf1( Ga2_Man_t * p, Gia_Obj_t * pObj ) { assert(Ga2_ObjId(p,pObj)); return Vec_PtrEntry( p->vCnfs, 2*Ga2_ObjId(p,pObj)+1 ); }
static inline int Ga2_ObjIsAbs( Ga2_Man_t * p, Gia_Obj_t * pObj ) { assert(Ga2_ObjId(p,pObj)); return Ga2_ObjId(p,pObj) < p->LimAbs; }
static inline int Ga2_ObjIsPpi( Ga2_Man_t * p, Gia_Obj_t * pObj ) { assert(Ga2_ObjId(p,pObj)); return Ga2_ObjId(p,pObj) >= p->LimAbs && Ga2_ObjId(p,pObj) < p->LimPpi; }
@ -93,6 +93,7 @@ static inline Vec_Int_t * Ga2_MapFrameMap( Ga2_Man_t * p, int f )
// returns literal of this object, or -1 if SAT variable of the object is not assigned
static inline int Ga2_ObjFindLit( Ga2_Man_t * p, Gia_Obj_t * pObj, int f )
{
int Id = Ga2_ObjId(p,pObj);
assert( Ga2_ObjId(p,pObj) && Ga2_ObjId(p,pObj) < Vec_IntSize(p->vValues) );
if ( f == Vec_PtrSize(p->vId2Lit) )
Vec_PtrPush( p->vId2Lit, Vec_IntStartFull(Vec_IntSize(p->vValues)) );
@ -357,9 +358,8 @@ Ga2_Man_t * Ga2_ManStart( Gia_Man_t * pGia, Gia_ParVta_t * pPars )
p->vIds = Vec_IntStart( Gia_ManObjNum(pGia) );
p->vAbs = Vec_IntAlloc( 1000 );
p->vValues = Vec_IntAlloc( 1000 );
p->vProofIds = Vec_IntAlloc( 1000 );
p->vProofIds = Vec_IntAlloc(0);
Vec_IntPush( p->vValues, -1 );
Vec_IntPush( p->vProofIds, -1 );
// refinement
p->pRnm = Rnm_ManStart( pGia );
// SAT solver and variables
@ -401,8 +401,10 @@ void Ga2_ManStop( Ga2_Man_t * p )
Vec_IntFreeP( &p->pGia->vMapping );
Gia_ManSetPhase( p->pGia );
// if ( p->pPars->fVerbose )
Abc_Print( 1, "SAT solver: Var = %d Cla = %d Conf = %d Reduce = %d Cex = %d ObjsAdded = %d\n",
sat_solver2_nvars(p->pSat), sat_solver2_nclauses(p->pSat), sat_solver2_nconflicts(p->pSat), p->pSat->nDBreduces, p->nCexes, p->nObjAdded );
Abc_Print( 1, "SAT solver: Var = %d Cla = %d Conf = %d Lrn = %d Reduce = %d Cex = %d ObjsAdded = %d\n",
sat_solver2_nvars(p->pSat), sat_solver2_nclauses(p->pSat),
sat_solver2_nconflicts(p->pSat), sat_solver2_nlearnts(p->pSat),
p->pSat->nDBreduces, p->nCexes, p->nObjAdded );
if( p->pSat ) sat_solver2_delete( p->pSat );
Vec_VecFree( (Vec_Vec_t *)p->vCnfs );
Vec_VecFree( (Vec_Vec_t *)p->vId2Lit );
@ -615,35 +617,33 @@ static inline void Ga2_ManCnfAddStatic( Ga2_Man_t * p, Vec_Int_t * vCnf0, Vec_In
SeeAlso []
***********************************************************************/
void Ga2_ManSetupNode( Ga2_Man_t * p, Gia_Obj_t * pObj, int fAbs, int ProofId )
void Ga2_ManSetupNode( Ga2_Man_t * p, Gia_Obj_t * pObj, int fAbs )
{
unsigned uTruth;
int nLeaves;
assert( pObj->fPhase );
assert( Vec_PtrSize(p->vCnfs) == 2 * Vec_IntSize(p->vValues) );
assert( Vec_IntSize(p->vProofIds) == Vec_IntSize(p->vValues) );
// assign abstraction ID to the node
if ( Ga2_ObjId(p,pObj) == 0 )
{
Ga2_ObjSetId( p, pObj, Vec_IntSize(p->vValues) );
Vec_IntPush( p->vValues, Gia_ObjId(p->pGia, pObj) );
Vec_IntPush( p->vProofIds, ProofId );
Vec_PtrPush( p->vCnfs, NULL );
Vec_PtrPush( p->vCnfs, NULL );
}
assert( Ga2_ObjCnf0(p, pObj) == NULL );
if ( !fAbs )
if ( !fAbs || Gia_ObjIsRo(p->pGia, pObj) || Gia_ObjIsConst0(pObj) )
return;
assert( Gia_ObjIsAnd(pObj) );
// compute parameters
nLeaves = Ga2_ObjLeaveNum(p->pGia, pObj);
// create CNF for pos/neg phases
uTruth = Ga2_ObjTruth( p->pGia, pObj );
Vec_PtrWriteEntry( p->vCnfs, 2 * Ga2_ObjId(p,pObj), Ga2_ManCnfCompute(uTruth, nLeaves, p->vIsopMem) );
uTruth = (~uTruth) & Abc_InfoMask( (1 << nLeaves) );
Vec_PtrWriteEntry( p->vCnfs, 2 * Ga2_ObjId(p,pObj) + 1, Ga2_ManCnfCompute(uTruth, nLeaves, p->vIsopMem) );
// create CNF for pos/neg phases
Vec_PtrWriteEntry( p->vCnfs, 2 * Ga2_ObjId(p,pObj), Ga2_ManCnfCompute( uTruth, nLeaves, p->vIsopMem) );
Vec_PtrWriteEntry( p->vCnfs, 2 * Ga2_ObjId(p,pObj) + 1, Ga2_ManCnfCompute(~uTruth, nLeaves, p->vIsopMem) );
}
void Ga2_ManAddToAbs( Ga2_Man_t * p, Vec_Int_t * vToAdd, int ProofId )
void Ga2_ManAddToAbs( Ga2_Man_t * p, Vec_Int_t * vToAdd )
{
Vec_Int_t * vLeaves, * vMap;
Gia_Obj_t * pObj, * pFanin;
@ -651,16 +651,25 @@ void Ga2_ManAddToAbs( Ga2_Man_t * p, Vec_Int_t * vToAdd, int ProofId )
// add abstraction objects
Gia_ManForEachObjVec( vToAdd, p->pGia, pObj, i )
{
Ga2_ManSetupNode( p, pObj, 1, ProofId );
Ga2_ManSetupNode( p, pObj, 1 );
Vec_IntPush( p->vAbs, Gia_ObjId(p->pGia, pObj) );
Vec_IntPush( p->vProofIds, ProofId );
if ( p->pSat->pPrf2 )
Vec_IntWriteEntry( p->vProofIds, Gia_ObjId(p->pGia, pObj), p->nProofIds++ );
}
// add PPI objects
Gia_ManForEachObjVec( vToAdd, p->pGia, pObj, i )
{
if ( Gia_ObjIsRo(p->pGia, pObj) )
{
pFanin = Gia_ObjRoToRi(p->pGia, pObj);
if ( !Ga2_ObjId( p, Gia_ObjFanin0(pFanin) ) )
Ga2_ManSetupNode( p, Gia_ObjFanin0(pFanin), 0 );
continue;
}
vLeaves = Ga2_ObjLeaves( p->pGia, pObj );
Gia_ManForEachObjVec( vLeaves, p->pGia, pFanin, k )
Ga2_ManSetupNode( p, pObj, 0, -1 );
if ( !Ga2_ObjId( p, pFanin ) )
Ga2_ManSetupNode( p, pFanin, 0 );
}
// clean mapping in the timeframes
Vec_PtrForEachEntry( Vec_Int_t *, p->vId2Lit, vMap, i )
@ -674,12 +683,8 @@ void Ga2_ManAddToAbs( Ga2_Man_t * p, Vec_Int_t * vToAdd, int ProofId )
Vec_IntClear( p->vLits );
Gia_ManForEachObjVec( vLeaves, p->pGia, pFanin, k )
Vec_IntPush( p->vLits, Ga2_ObjFindOrAddLit( p, pFanin, f ) );
Ga2_ManCnfAddStatic( p, Ga2_ObjCnf0(p, pObj), Ga2_ObjCnf1(p, pObj), Vec_IntArray(p->vLits), iLitOut, Vec_IntEntry(p->vProofIds, Ga2_ObjId(p, pObj)) );
Ga2_ManCnfAddStatic( p, Ga2_ObjCnf0(p, pObj), Ga2_ObjCnf1(p, pObj), Vec_IntArray(p->vLits), iLitOut, Gia_ObjId(p->pGia, pObj) );
}
// verify -- if ProofId == -1, all proof IDs should be the same
if ( ProofId == -1 )
Vec_IntForEachEntry( p->vProofIds, k, i )
assert( k == -1 );
}
void Ga2_ManAddAbsClauses( Ga2_Man_t * p, int f )
@ -696,7 +701,7 @@ void Ga2_ManAddAbsClauses( Ga2_Man_t * p, int f )
Gia_ManForEachObjVec( vLeaves, p->pGia, pFanin, k )
Vec_IntPush( p->vLits, Ga2_ObjFindOrAddLit( p, pFanin, f ) );
iLitOut = Ga2_ObjFindOrAddLit( p, pObj, f );
Ga2_ManCnfAddStatic( p, Ga2_ObjCnf0(p, pObj), Ga2_ObjCnf1(p, pObj), Vec_IntArray(p->vLits), iLitOut, i - p->LimAbs );
Ga2_ManCnfAddStatic( p, Ga2_ObjCnf0(p, pObj), Ga2_ObjCnf1(p, pObj), Vec_IntArray(p->vLits), iLitOut, Gia_ObjId(p->pGia, pObj) );
}
}
@ -723,13 +728,13 @@ void Ga2_ManShrinkAbs( Ga2_Man_t * p, int nAbs, int nValues )
// shrink values
Gia_ManForEachObjVec( p->vValues, p->pGia, pObj, i )
{
if ( !i ) continue;
assert( Ga2_ObjId(p,pObj) );
if ( i < nValues )
continue;
Ga2_ObjSetId( p, pObj, 0 );
}
Vec_IntShrink( p->vValues, nValues );
Vec_IntShrink( p->vProofIds, nValues );
Vec_PtrShrink( p->vCnfs, 2 * nValues );
// clean mapping into timeframes
Vec_PtrForEachEntry( Vec_Int_t *, p->vId2Lit, vMap, i )
@ -763,8 +768,20 @@ Vec_Int_t * Ga2_ManAbsTranslate( Ga2_Man_t * p )
Gia_Obj_t * pObj;
int i;
vGateClasses = Vec_IntStart( Gia_ManObjNum(p->pGia) );
Vec_IntWriteEntry( vGateClasses, 0, 1 );
Gia_ManForEachObjVec( p->vAbs, p->pGia, pObj, i )
Ga2_ManAbsTranslate_rec( p->pGia, pObj, vGateClasses, 1 );
{
if ( Gia_ObjIsRo(p->pGia, pObj) )
{
Vec_IntWriteEntry( vGateClasses, Gia_ObjId(p->pGia, pObj), 1 );
pObj = Gia_ObjRoToRi( p->pGia, pObj );
Vec_IntWriteEntry( vGateClasses, Gia_ObjFaninId0p(p->pGia, pObj), 1 );
}
else if ( Gia_ObjIsAnd(pObj) )
Ga2_ManAbsTranslate_rec( p->pGia, pObj, vGateClasses, 1 );
else if ( !Gia_ObjIsConst0(pObj) )
assert( 0 );
}
return vGateClasses;
}
@ -774,9 +791,10 @@ Vec_Int_t * Ga2_ManAbsDerive( Gia_Man_t * p )
Gia_Obj_t * pObj;
int i;
vToAdd = Vec_IntAlloc( 1000 );
Vec_IntPush( vToAdd, 0 ); // const 0
Gia_ManForEachRo( p, pObj, i )
if ( pObj->fPhase && Vec_IntEntry(p->vGateClasses, i) )
Vec_IntPush( vToAdd, i );
if ( pObj->fPhase && Vec_IntEntry(p->vGateClasses, Gia_ObjId(p, pObj)) )
Vec_IntPush( vToAdd, Gia_ObjId(p, pObj) );
Gia_ManForEachAnd( p, pObj, i )
if ( pObj->fPhase && Vec_IntEntry(p->vGateClasses, i) )
Vec_IntPush( vToAdd, i );
@ -788,7 +806,6 @@ void Ga2_ManRestart( Ga2_Man_t * p )
Vec_Int_t * vToAdd;
assert( p->pGia != NULL && p->pGia->vGateClasses != NULL );
assert( Gia_ManPi(p->pGia, 0)->fPhase ); // marks are set
p->nProofIds = 0;
// clear mappings from objects
Ga2_ManShrinkAbs( p, 0, 1 );
// clear SAT variable numbers (begin with 1)
@ -797,7 +814,7 @@ void Ga2_ManRestart( Ga2_Man_t * p )
p->nSatVars = 1;
// start abstraction
vToAdd = Ga2_ManAbsDerive( p->pGia );
Ga2_ManAddToAbs( p, vToAdd, -1 );
Ga2_ManAddToAbs( p, vToAdd );
Vec_IntFree( vToAdd );
p->LimAbs = Vec_IntSize(p->vAbs) + 1;
p->LimPpi = Vec_IntSize(p->vValues);
@ -820,6 +837,7 @@ void Ga2_ManRestart( Ga2_Man_t * p )
int Ga2_ManUnroll_rec( Ga2_Man_t * p, Gia_Obj_t * pObj, int f )
{
int fSimple = 1;
int Id = Gia_ObjId(p->pGia, pObj);
unsigned uTruth;
Gia_Obj_t * pLeaf;
int nLeaves, * pLeaves;
@ -839,11 +857,11 @@ int Ga2_ManUnroll_rec( Ga2_Man_t * p, Gia_Obj_t * pObj, int f )
return 0;
}
assert( pObj->fPhase );
if ( Gia_ObjIsPi(p->pGia, pObj) || Ga2_ObjIsPpi(p, pObj) )
return Ga2_ObjFindOrAddLit( p, pObj, f );
Lit = Ga2_ObjFindLit( p, pObj, f );
if ( Lit >= 0 )
return Lit;
if ( Gia_ObjIsPi(p->pGia, pObj) )
return Ga2_ObjFindOrAddLit( p, pObj, f );
if ( Gia_ObjIsRo(p->pGia, pObj) )
{
assert( f > 0 );
@ -851,6 +869,7 @@ int Ga2_ManUnroll_rec( Ga2_Man_t * p, Gia_Obj_t * pObj, int f )
Ga2_ObjAddLit( p, pObj, f, Lit );
return Lit;
}
assert( Gia_ObjIsAnd(pObj) );
nLeaves = Ga2_ObjLeaveNum( p->pGia, pObj );
pLeaves = Ga2_ObjLeavePtr( p->pGia, pObj );
if ( fSimple )
@ -864,7 +883,7 @@ int Ga2_ManUnroll_rec( Ga2_Man_t * p, Gia_Obj_t * pObj, int f )
// create fanout literal
Lit = Ga2_ObjFindOrAddLit( p, pObj, f );
// create clauses
Ga2_ManCnfAddStatic( p, Ga2_ObjCnf0(p, pObj), Ga2_ObjCnf1(p, pObj), pLits, Lit, -1 );
Ga2_ManCnfAddStatic( p, Ga2_ObjCnf0(p, pObj), Ga2_ObjCnf1(p, pObj), pLits, Lit, Gia_ObjId(p->pGia, pObj) );
return Lit;
}
// collect fanin literals
@ -901,7 +920,7 @@ int Ga2_ManUnroll_rec( Ga2_Man_t * p, Gia_Obj_t * pObj, int f )
// add new node
Lit = Ga2_ObjFindOrAddLit(p, pObj, f);
Ga2_ManCnfAddDynamic( p, uTruth, Vec_IntArray(p->vLits), Lit, -1 );
Ga2_ManCnfAddDynamic( p, uTruth, Vec_IntArray(p->vLits), Lit, Gia_ObjId(p->pGia, pObj) );
}
Ga2_ObjAddLit( p, pObj, f, Lit );
return Lit;
@ -956,6 +975,7 @@ void Ga2_GlaPrepareCexAndMap( Ga2_Man_t * p, Abc_Cex_t ** ppCex, Vec_Int_t ** pv
vMap = Vec_IntAlloc( 1000 );
Gia_ManForEachObjVec( p->vValues, p->pGia, pObj, i )
{
if ( !i ) continue;
if ( Ga2_ObjIsAbs(p, pObj) )
continue;
assert( Ga2_ObjIsPpi(p, pObj) );
@ -1016,6 +1036,66 @@ Vec_Int_t * Ga2_ManRefine( Ga2_Man_t * p )
return vVec;
}
/**Function*************************************************************
Synopsis [Creates a new manager.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
int Ga2_GlaAbsCount( Ga2_Man_t * p, int fRo, int fAnd )
{
Gia_Obj_t * pObj;
int i, Counter = 0;
if ( fRo )
Gia_ManForEachObjVec( p->vAbs, p->pGia, pObj, i )
Counter += Gia_ObjIsRo(p->pGia, pObj);
else if ( fAnd )
Gia_ManForEachObjVec( p->vAbs, p->pGia, pObj, i )
Counter += Gia_ObjIsAnd(pObj);
else assert( 0 );
return Counter;
}
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Ga2_ManAbsPrintFrame( Ga2_Man_t * p, int nFrames, int nConfls, int nCexes, clock_t Time, int fFinal )
{
if ( Abc_FrameIsBatchMode() && !fFinal )
return;
Abc_Print( 1, "%4d :", nFrames );
Abc_Print( 1, "%4d", Abc_MinInt(100, 100 * Vec_IntSize(p->vAbs) / p->nMarked) );
Abc_Print( 1, "%6d", Vec_IntSize(p->vAbs) );
Abc_Print( 1, "%5d", Vec_IntSize(p->vValues)-Vec_IntSize(p->vAbs)-1 );
Abc_Print( 1, "%5d", Ga2_GlaAbsCount(p, 1, 0) );
Abc_Print( 1, "%6d", Ga2_GlaAbsCount(p, 0, 1) );
Abc_Print( 1, "%8d", nConfls );
if ( nCexes == 0 )
Abc_Print( 1, "%5c", '-' );
else
Abc_Print( 1, "%5d", nCexes );
Abc_PrintInt( sat_solver2_nvars(p->pSat) );
Abc_PrintInt( sat_solver2_nclauses(p->pSat) );
Abc_PrintInt( sat_solver2_nlearnts(p->pSat) );
Abc_Print( 1, "%9.2f sec", 1.0*Time/CLOCKS_PER_SEC );
Abc_Print( 1, "%5.1f GB", (sat_solver2_memory_proof(p->pSat) + sat_solver2_memory(p->pSat, 0)) / (1<<30) );
Abc_Print( 1, "%s", fFinal ? "\n" : "\r" );
fflush( stdout );
}
/**Function*************************************************************
Synopsis [Performs gate-level abstraction.]
@ -1031,13 +1111,11 @@ int Ga2_ManPerform( Gia_Man_t * pAig, Gia_ParVta_t * pPars )
{
Ga2_Man_t * p;
Vec_Int_t * vCore, * vPPis;
clock_t clk = clock();
clock_t clk2, clk = clock();
int nAbs, nValues, Status, RetValue = -1;
int i, c, f, Lit;
// start the manager
p = Ga2_ManStart( pAig, pPars );
// check trivial case
assert( Gia_ManPoNum(pAig) == 1 );
assert( Gia_ManPoNum(pAig) == 1 );
ABC_FREE( pAig->pCexSeq );
if ( Gia_ObjIsConst0(Gia_ObjFanin0(Gia_ManPo(pAig,0))) )
{
@ -1068,7 +1146,7 @@ int Ga2_ManPerform( Gia_Man_t * pAig, Gia_ParVta_t * pPars )
pPars->nFramesMax, pPars->nConfLimit, pPars->nTimeOut, pPars->nRatioMin );
Abc_Print( 1, "LearnStart = %d LearnDelta = %d LearnRatio = %d %%.\n",
pPars->nLearnedStart, pPars->nLearnedDelta, pPars->nLearnedPerce );
Abc_Print( 1, "Frame %% Abs PPI FF LUT Confl Cex Vars Clas Lrns Time Mem\n" );
Abc_Print( 1, " Frame %% Abs PPI FF LUT Confl Cex Vars Clas Lrns Time Mem\n" );
}
// iterate unrolling
for ( i = f = 0; !pPars->nFramesMax || f < pPars->nFramesMax; i++ )
@ -1081,6 +1159,7 @@ int Ga2_ManPerform( Gia_Man_t * pAig, Gia_ParVta_t * pPars )
// unroll the circuit
for ( f = 0; !pPars->nFramesMax || f < pPars->nFramesMax; f++ )
{
int nConflsBeg = sat_solver2_nconflicts(p->pSat);
p->pPars->iFrame = f;
// add static clauses to this timeframe
Ga2_ManAddAbsClauses( p, f );
@ -1090,35 +1169,62 @@ int Ga2_ManPerform( Gia_Man_t * pAig, Gia_ParVta_t * pPars )
for ( c = 0; ; c++ )
{
// perform SAT solving
clk = clock();
clk2 = clock();
Status = sat_solver2_solve( p->pSat, &Lit, &Lit+1, (ABC_INT64_T)pPars->nConfLimit, (ABC_INT64_T)0, (ABC_INT64_T)0, (ABC_INT64_T)0 );
if ( Status == l_True ) // perform refinement
{
p->timeSat += clock() - clk;
clk = clock();
p->timeSat += clock() - clk2;
clk2 = clock();
vPPis = Ga2_ManRefine( p );
p->timeCex += clock() - clk;
p->timeCex += clock() - clk2;
if ( vPPis == NULL )
goto finish;
Ga2_ManAddToAbs( p, vPPis, p->nProofIds++ );
if ( c == 0 )
{
// start incremental proof manager
assert( p->pSat->pPrf2 == NULL );
p->pSat->pPrf2 = Prf_ManAlloc();
if ( p->pSat->pPrf2 )
{
p->nProofIds = 0;
Vec_IntFill( p->vProofIds, Gia_ManObjNum(p->pGia), -1 );
Prf_ManRestart( p->pSat->pPrf2, p->vProofIds, sat_solver2_nlearnts(p->pSat), Vec_IntSize(vPPis) );
}
}
else
{
// resize the proof logger
if ( p->pSat->pPrf2 )
Prf_ManGrow( p->pSat->pPrf2, p->nProofIds + Vec_IntSize(vPPis) );
}
Ga2_ManAddToAbs( p, vPPis );
Vec_IntFree( vPPis );
if ( pPars->fVerbose )
Ga2_ManAbsPrintFrame( p, f, sat_solver2_nconflicts(p->pSat)-nConflsBeg, c, clock() - clk, 0 );
// verify
if ( Vec_IntCheckUnique(p->vAbs) )
printf( "Vector has %d duplicated entries.\n", Vec_IntCheckUnique(p->vAbs) );
continue;
}
p->timeUnsat += clock() - clk;
if ( p->pSat->nRuntimeLimit && clock() > p->pSat->nRuntimeLimit ) // timeout
goto finish;
p->timeUnsat += clock() - clk2;
if ( Status == l_Undef ) // ran out of resources
goto finish;
if ( p->pSat->nRuntimeLimit && clock() > p->pSat->nRuntimeLimit ) // timeout
goto finish;
assert( RetValue == l_False );
if ( c == 0 )
break;
// reduce abstraction
Ga2_ManShrinkAbs( p, nAbs, nValues );
// derive UNSAT core
vCore = (Vec_Int_t *)Sat_ProofCore( p->pSat );
Ga2_ManShrinkAbs( p, nAbs, nValues );
Ga2_ManAddToAbs( p, vCore, -1 );
Prf_ManStopP( &p->pSat->pPrf2 );
// use UNSAT core
Ga2_ManAddToAbs( p, vCore );
Vec_IntFree( vCore );
p->nProofIds = 0;
// remember current limits
nAbs = Vec_IntSize(p->vAbs);
nValues = Vec_IntSize(p->vValues);
@ -1127,6 +1233,8 @@ int Ga2_ManPerform( Gia_Man_t * pAig, Gia_ParVta_t * pPars )
printf( "Vector has %d duplicated entries.\n", Vec_IntCheckUnique(p->vAbs) );
break;
}
if ( pPars->fVerbose )
Ga2_ManAbsPrintFrame( p, f, sat_solver2_nconflicts(p->pSat)-nConflsBeg, c, clock() - clk, 1 );
if ( c > 0 )
{
Vec_IntFreeP( &pAig->vGateClasses );
@ -1142,6 +1250,7 @@ int Ga2_ManPerform( Gia_Man_t * pAig, Gia_ParVta_t * pPars )
}
}
finish:
Prf_ManStopP( &p->pSat->pPrf2 );
// analize the results
if ( pAig->pCexSeq == NULL )
{