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Added command 'reconcile'.

This commit is contained in:
Alan Mishchenko 2011-04-16 22:49:14 -07:00
parent ddd9758931
commit 0aefe77ea5
5 changed files with 472 additions and 214 deletions
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107
src/aig/llb/llb4Cex.c
View File

@ -171,7 +171,7 @@ Abc_Cex_t * Llb4_Nonlin4TransformCex( Aig_Man_t * pAig, Vec_Ptr_t * vStates, int
pCex->iPo = status; pCex->iPo = status;
else else
{ {
printf( "Inter_ManGetCounterExample(): Counter-example verification has FAILED.\n" ); printf( "Llb4_Nonlin4TransformCex(): Counter-example verification has FAILED.\n" );
ABC_FREE( pCex ); ABC_FREE( pCex );
return NULL; return NULL;
} }
@ -182,6 +182,111 @@ Abc_Cex_t * Llb4_Nonlin4TransformCex( Aig_Man_t * pAig, Vec_Ptr_t * vStates, int
} }
/**Function*************************************************************
Synopsis [Resimulates the counter-example.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
Vec_Ptr_t * Llb4_Nonlin4VerifyCex( Aig_Man_t * pAig, Abc_Cex_t * p )
{
Vec_Ptr_t * vStates;
Aig_Obj_t * pObj, * pObjRi, * pObjRo;
int i, k, iBit = 0;
// create storage for states
vStates = Vec_PtrAllocSimInfo( p->iFrame+1, Aig_BitWordNum(Aig_ManRegNum(pAig)) );
Vec_PtrCleanSimInfo( vStates, 0, Aig_BitWordNum(Aig_ManRegNum(pAig)) );
// verify counter-example
Aig_ManCleanMarkB(pAig);
Aig_ManConst1(pAig)->fMarkB = 1;
Saig_ManForEachLo( pAig, pObj, i )
pObj->fMarkB = Aig_InfoHasBit(p->pData, iBit++);
for ( i = 0; i <= p->iFrame; i++ )
{
// save current state
Saig_ManForEachLo( pAig, pObj, k )
if ( pObj->fMarkB )
Aig_InfoSetBit( (unsigned *)Vec_PtrEntry(vStates, i), k );
// compute new state
Saig_ManForEachPi( pAig, pObj, k )
pObj->fMarkB = Aig_InfoHasBit(p->pData, iBit++);
Aig_ManForEachNode( pAig, pObj, k )
pObj->fMarkB = (Aig_ObjFanin0(pObj)->fMarkB ^ Aig_ObjFaninC0(pObj)) &
(Aig_ObjFanin1(pObj)->fMarkB ^ Aig_ObjFaninC1(pObj));
Aig_ManForEachPo( pAig, pObj, k )
pObj->fMarkB = Aig_ObjFanin0(pObj)->fMarkB ^ Aig_ObjFaninC0(pObj);
if ( i == p->iFrame )
break;
Saig_ManForEachLiLo( pAig, pObjRi, pObjRo, k )
pObjRo->fMarkB = pObjRi->fMarkB;
}
/*
{
unsigned * pNext;
Vec_PtrForEachEntry( unsigned *, vStates, pNext, i )
{
printf( "%4d : ", i );
Extra_PrintBinary( stdout, pNext, Aig_ManRegNum(pAig) );
printf( "\n" );
}
}
*/
assert( iBit == p->nBits );
if ( Aig_ManPo(pAig, p->iPo)->fMarkB == 0 )
Vec_PtrFreeP( &vStates );
Aig_ManCleanMarkB(pAig);
return vStates;
}
/**Function*************************************************************
Synopsis [Translates a sequence of states into a counter-example.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
Abc_Cex_t * Llb4_Nonlin4NormalizeCex( Aig_Man_t * pAigOrg, Aig_Man_t * pAigRpm, Abc_Cex_t * pCexRpm )
{
Abc_Cex_t * pCexOrg;
Vec_Ptr_t * vStates;
// check parameters of the AIG
if ( Saig_ManRegNum(pAigOrg) != Saig_ManRegNum(pAigRpm) )
{
printf( "Llb4_Nonlin4NormalizeCex(): The number of flops in the original and reparametrized AIGs do not agree.\n" );
return NULL;
}
if ( Saig_ManRegNum(pAigRpm) != pCexRpm->nRegs )
{
printf( "Llb4_Nonlin4NormalizeCex(): The number of flops in the reparametrized AIG and in the CEX do not agree.\n" );
return NULL;
}
if ( Saig_ManPiNum(pAigRpm) != pCexRpm->nPis )
{
printf( "Llb4_Nonlin4NormalizeCex(): The number of PIs in the reparametrized AIG and in the CEX do not agree.\n" );
return NULL;
}
// get the sequence of states
vStates = Llb4_Nonlin4VerifyCex( pAigRpm, pCexRpm );
if ( vStates == NULL )
{
Abc_Print( 1, "Llb4_Nonlin4NormalizeCex(): The given CEX does not fail outputs of pAigRpm.\n" );
return NULL;
}
// derive updated counter-example
pCexOrg = Llb4_Nonlin4TransformCex( pAigOrg, vStates, 0 );
Vec_PtrFree( vStates );
return pCexOrg;
}
//////////////////////////////////////////////////////////////////////// ////////////////////////////////////////////////////////////////////////
/// END OF FILE /// /// END OF FILE ///
//////////////////////////////////////////////////////////////////////// ////////////////////////////////////////////////////////////////////////

178
src/aig/llb/llb4Cluster.c
View File

@ -27,8 +27,6 @@ ABC_NAMESPACE_IMPL_START
/// DECLARATIONS /// /// DECLARATIONS ///
//////////////////////////////////////////////////////////////////////// ////////////////////////////////////////////////////////////////////////
static inline int Llb_MnxBddVar( Vec_Int_t * vOrder, Aig_Obj_t * pObj ) { return Vec_IntEntry(vOrder, Aig_ObjId(pObj)); }
//////////////////////////////////////////////////////////////////////// ////////////////////////////////////////////////////////////////////////
/// FUNCTION DEFINITIONS /// /// FUNCTION DEFINITIONS ///
//////////////////////////////////////////////////////////////////////// ////////////////////////////////////////////////////////////////////////
@ -50,7 +48,7 @@ void Llb_Nonlin4FindOrder_rec( Aig_Man_t * pAig, Aig_Obj_t * pObj, Vec_Int_t * v
if ( Aig_ObjIsTravIdCurrent(pAig, pObj) ) if ( Aig_ObjIsTravIdCurrent(pAig, pObj) )
return; return;
Aig_ObjSetTravIdCurrent( pAig, pObj ); Aig_ObjSetTravIdCurrent( pAig, pObj );
assert( Llb_MnxBddVar(vOrder, pObj) < 0 ); assert( Llb_ObjBddVar(vOrder, pObj) < 0 );
if ( Aig_ObjIsPi(pObj) ) if ( Aig_ObjIsPi(pObj) )
{ {
Vec_IntWriteEntry( vOrder, Aig_ObjId(pObj), (*pCounter)++ ); Vec_IntWriteEntry( vOrder, Aig_ObjId(pObj), (*pCounter)++ );
@ -110,7 +108,7 @@ Vec_Int_t * Llb_Nonlin4FindOrder( Aig_Man_t * pAig, int * pCounter )
Llb_Nonlin4FindOrder_rec( pAig, Aig_ObjFanin0(pObj), vOrder, &Counter ); Llb_Nonlin4FindOrder_rec( pAig, Aig_ObjFanin0(pObj), vOrder, &Counter );
} }
Aig_ManForEachPi( pAig, pObj, i ) Aig_ManForEachPi( pAig, pObj, i )
if ( Llb_MnxBddVar(vOrder, pObj) < 0 ) if ( Llb_ObjBddVar(vOrder, pObj) < 0 )
Vec_IntWriteEntry( vOrder, Aig_ObjId(pObj), Counter++ ); Vec_IntWriteEntry( vOrder, Aig_ObjId(pObj), Counter++ );
Aig_ManCleanMarkA( pAig ); Aig_ManCleanMarkA( pAig );
Vec_IntFreeP( &vNodes ); Vec_IntFreeP( &vNodes );
@ -118,19 +116,19 @@ Vec_Int_t * Llb_Nonlin4FindOrder( Aig_Man_t * pAig, int * pCounter )
/* /*
Saig_ManForEachPi( pAig, pObj, i ) Saig_ManForEachPi( pAig, pObj, i )
printf( "pi%d ", Llb_MnxBddVar(vOrder, pObj) ); printf( "pi%d ", Llb_ObjBddVar(vOrder, pObj) );
printf( "\n" ); printf( "\n" );
Saig_ManForEachLo( pAig, pObj, i ) Saig_ManForEachLo( pAig, pObj, i )
printf( "lo%d ", Llb_MnxBddVar(vOrder, pObj) ); printf( "lo%d ", Llb_ObjBddVar(vOrder, pObj) );
printf( "\n" ); printf( "\n" );
Saig_ManForEachPo( pAig, pObj, i ) Saig_ManForEachPo( pAig, pObj, i )
printf( "po%d ", Llb_MnxBddVar(vOrder, pObj) ); printf( "po%d ", Llb_ObjBddVar(vOrder, pObj) );
printf( "\n" ); printf( "\n" );
Saig_ManForEachLi( pAig, pObj, i ) Saig_ManForEachLi( pAig, pObj, i )
printf( "li%d ", Llb_MnxBddVar(vOrder, pObj) ); printf( "li%d ", Llb_ObjBddVar(vOrder, pObj) );
printf( "\n" ); printf( "\n" );
Aig_ManForEachNode( pAig, pObj, i ) Aig_ManForEachNode( pAig, pObj, i )
printf( "n%d ", Llb_MnxBddVar(vOrder, pObj) ); printf( "n%d ", Llb_ObjBddVar(vOrder, pObj) );
printf( "\n" ); printf( "\n" );
*/ */
if ( pCounter ) if ( pCounter )
@ -149,77 +147,74 @@ Vec_Int_t * Llb_Nonlin4FindOrder( Aig_Man_t * pAig, int * pCounter )
SeeAlso [] SeeAlso []
***********************************************************************/ ***********************************************************************/
Vec_Ptr_t * Llb_Nonlin4FindPartitions( DdManager * dd, Aig_Man_t * pAig, Vec_Int_t * vOrder ) DdNode * Llb_Nonlin4FindPartitions_rec( DdManager * dd, Aig_Obj_t * pObj, Vec_Int_t * vOrder, Vec_Ptr_t * vRoots )
{ {
Vec_Ptr_t * vRoots; DdNode * bBdd, * bBdd0, * bBdd1, * bPart, * vVar;
Aig_Obj_t * pObj; if ( Aig_ObjIsConst1(pObj) )
DdNode * bBdd, * bBdd0, * bBdd1, * bPart; return Cudd_ReadOne(dd);
int i; if ( Aig_ObjIsPi(pObj) )
Aig_ManCleanData( pAig ); return Cudd_bddIthVar( dd, Llb_ObjBddVar(vOrder, pObj) );
// assign elementary variables
Aig_ManConst1(pAig)->pData = Cudd_ReadOne(dd);
Aig_ManForEachPi( pAig, pObj, i )
pObj->pData = Cudd_bddIthVar( dd, Llb_MnxBddVar(vOrder, pObj) );
Aig_ManForEachNode( pAig, pObj, i )
if ( Llb_MnxBddVar(vOrder, pObj) >= 0 )
{
pObj->pData = Cudd_bddIthVar( dd, Llb_MnxBddVar(vOrder, pObj) );
Cudd_Ref( (DdNode *)pObj->pData );
}
// Aig_ManForEachPo( pAig, pObj, i )
Saig_ManForEachLi( pAig, pObj, i )
pObj->pData = Cudd_bddIthVar( dd, Llb_MnxBddVar(vOrder, pObj) );
// compute intermediate BDDs
vRoots = Vec_PtrAlloc( 100 );
Aig_ManForEachNode( pAig, pObj, i )
{
bBdd0 = Cudd_NotCond( (DdNode *)Aig_ObjFanin0(pObj)->pData, Aig_ObjFaninC0(pObj) );
bBdd1 = Cudd_NotCond( (DdNode *)Aig_ObjFanin1(pObj)->pData, Aig_ObjFaninC1(pObj) );
bBdd = Cudd_bddAnd( dd, bBdd0, bBdd1 );
Cudd_Ref( bBdd );
if ( pObj->pData == NULL )
{
pObj->pData = bBdd;
continue;
}
// create new partition
bPart = Cudd_bddXnor( dd, (DdNode *)pObj->pData, bBdd );
if ( bPart == NULL )
goto finish;
Cudd_Ref( bPart );
Cudd_RecursiveDeref( dd, bBdd );
Vec_PtrPush( vRoots, bPart );
}
// compute register output BDDs
// Aig_ManForEachPo( pAig, pObj, i )
Saig_ManForEachLi( pAig, pObj, i )
{
bBdd0 = Cudd_NotCond( (DdNode *)Aig_ObjFanin0(pObj)->pData, Aig_ObjFaninC0(pObj) );
bPart = Cudd_bddXnor( dd, (DdNode *)pObj->pData, bBdd0 );
if ( bPart == NULL )
goto finish;
Cudd_Ref( bPart );
Vec_PtrPush( vRoots, bPart );
//printf( "%d ", Cudd_DagSize(bPart) );
}
//printf( "\n" );
Aig_ManForEachNode( pAig, pObj, i )
Cudd_RecursiveDeref( dd, (DdNode *)pObj->pData );
return vRoots;
// early termination
finish:
Aig_ManForEachNode( pAig, pObj, i )
if ( pObj->pData ) if ( pObj->pData )
Cudd_RecursiveDeref( dd, (DdNode *)pObj->pData ); return (DdNode *)pObj->pData;
Vec_PtrForEachEntry( DdNode *, vRoots, bPart, i ) if ( Aig_ObjIsPo(pObj) )
Cudd_RecursiveDeref( dd, bPart ); {
Vec_PtrFree( vRoots ); bBdd0 = Cudd_NotCond( Llb_Nonlin4FindPartitions_rec(dd, Aig_ObjFanin0(pObj), vOrder, vRoots), Aig_ObjFaninC0(pObj) );
bPart = Cudd_bddXnor( dd, Cudd_bddIthVar( dd, Llb_ObjBddVar(vOrder, pObj) ), bBdd0 ); Cudd_Ref( bPart );
Vec_PtrPush( vRoots, bPart );
return NULL; return NULL;
}
bBdd0 = Cudd_NotCond( Llb_Nonlin4FindPartitions_rec(dd, Aig_ObjFanin0(pObj), vOrder, vRoots), Aig_ObjFaninC0(pObj) );
bBdd1 = Cudd_NotCond( Llb_Nonlin4FindPartitions_rec(dd, Aig_ObjFanin1(pObj), vOrder, vRoots), Aig_ObjFaninC1(pObj) );
bBdd = Cudd_bddAnd( dd, bBdd0, bBdd1 ); Cudd_Ref( bBdd );
if ( Llb_ObjBddVar(vOrder, pObj) >= 0 )
{
vVar = Cudd_bddIthVar( dd, Llb_ObjBddVar(vOrder, pObj) );
bPart = Cudd_bddXnor( dd, vVar, bBdd ); Cudd_Ref( bPart );
Vec_PtrPush( vRoots, bPart );
Cudd_RecursiveDeref( dd, bBdd );
bBdd = vVar; Cudd_Ref( vVar );
}
pObj->pData = bBdd;
return bBdd;
} }
/**Function************************************************************* /**Function*************************************************************
Synopsis [Creates quantifiable varaibles for both types of traversal.] Synopsis [Derives BDDs for the partitions.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
Vec_Ptr_t * Llb_Nonlin4FindPartitions( DdManager * dd, Aig_Man_t * pAig, Vec_Int_t * vOrder, int fOutputs )
{
Vec_Ptr_t * vRoots;
Aig_Obj_t * pObj;
int i;
Aig_ManCleanData( pAig );
vRoots = Vec_PtrAlloc( 100 );
if ( fOutputs )
{
Saig_ManForEachPo( pAig, pObj, i )
Llb_Nonlin4FindPartitions_rec( dd, pObj, vOrder, vRoots );
}
else
{
Saig_ManForEachLi( pAig, pObj, i )
Llb_Nonlin4FindPartitions_rec( dd, pObj, vOrder, vRoots );
}
Aig_ManForEachNode( pAig, pObj, i )
if ( pObj->pData )
Cudd_RecursiveDeref( dd, (DdNode *)pObj->pData );
return vRoots;
}
/**Function*************************************************************
Synopsis [Creates quantifiable variables for both types of traversal.]
Description [] Description []
@ -236,16 +231,16 @@ Vec_Int_t * Llb_Nonlin4FindVars2Q( DdManager * dd, Aig_Man_t * pAig, Vec_Int_t *
vVars2Q = Vec_IntAlloc( 0 ); vVars2Q = Vec_IntAlloc( 0 );
Vec_IntFill( vVars2Q, Cudd_ReadSize(dd), 1 ); Vec_IntFill( vVars2Q, Cudd_ReadSize(dd), 1 );
Saig_ManForEachLo( pAig, pObj, i ) Saig_ManForEachLo( pAig, pObj, i )
Vec_IntWriteEntry( vVars2Q, Llb_MnxBddVar(vOrder, pObj), 0 ); Vec_IntWriteEntry( vVars2Q, Llb_ObjBddVar(vOrder, pObj), 0 );
// Aig_ManForEachPo( pAig, pObj, i ) // Aig_ManForEachPo( pAig, pObj, i )
Saig_ManForEachLi( pAig, pObj, i ) Saig_ManForEachLi( pAig, pObj, i )
Vec_IntWriteEntry( vVars2Q, Llb_MnxBddVar(vOrder, pObj), 0 ); Vec_IntWriteEntry( vVars2Q, Llb_ObjBddVar(vOrder, pObj), 0 );
return vVars2Q; return vVars2Q;
} }
/**Function************************************************************* /**Function*************************************************************
Synopsis [Creates quantifiable varaibles for both types of traversal.] Synopsis [Creates quantifiable variables for both types of traversal.]
Description [] Description []
@ -263,26 +258,26 @@ int Llb_Nonlin4CountTerms( DdManager * dd, Aig_Man_t * pAig, Vec_Int_t * vOrder,
if ( !fCo && !fFlop ) if ( !fCo && !fFlop )
{ {
Saig_ManForEachPi( pAig, pObj, i ) Saig_ManForEachPi( pAig, pObj, i )
if ( Llb_MnxBddVar(vOrder, pObj) >= 0 ) if ( Llb_ObjBddVar(vOrder, pObj) >= 0 )
Counter += Cudd_bddLeq( dd, bSupp, Cudd_bddIthVar(dd, Llb_MnxBddVar(vOrder, pObj)) ); Counter += Cudd_bddLeq( dd, bSupp, Cudd_bddIthVar(dd, Llb_ObjBddVar(vOrder, pObj)) );
} }
else if ( fCo && !fFlop ) else if ( fCo && !fFlop )
{ {
Saig_ManForEachPo( pAig, pObj, i ) Saig_ManForEachPo( pAig, pObj, i )
if ( Llb_MnxBddVar(vOrder, pObj) >= 0 ) if ( Llb_ObjBddVar(vOrder, pObj) >= 0 )
Counter += Cudd_bddLeq( dd, bSupp, Cudd_bddIthVar(dd, Llb_MnxBddVar(vOrder, pObj)) ); Counter += Cudd_bddLeq( dd, bSupp, Cudd_bddIthVar(dd, Llb_ObjBddVar(vOrder, pObj)) );
} }
else if ( !fCo && fFlop ) else if ( !fCo && fFlop )
{ {
Saig_ManForEachLo( pAig, pObj, i ) Saig_ManForEachLo( pAig, pObj, i )
if ( Llb_MnxBddVar(vOrder, pObj) >= 0 ) if ( Llb_ObjBddVar(vOrder, pObj) >= 0 )
Counter += Cudd_bddLeq( dd, bSupp, Cudd_bddIthVar(dd, Llb_MnxBddVar(vOrder, pObj)) ); Counter += Cudd_bddLeq( dd, bSupp, Cudd_bddIthVar(dd, Llb_ObjBddVar(vOrder, pObj)) );
} }
else if ( fCo && fFlop ) else if ( fCo && fFlop )
{ {
Saig_ManForEachLi( pAig, pObj, i ) Saig_ManForEachLi( pAig, pObj, i )
if ( Llb_MnxBddVar(vOrder, pObj) >= 0 ) if ( Llb_ObjBddVar(vOrder, pObj) >= 0 )
Counter += Cudd_bddLeq( dd, bSupp, Cudd_bddIthVar(dd, Llb_MnxBddVar(vOrder, pObj)) ); Counter += Cudd_bddLeq( dd, bSupp, Cudd_bddIthVar(dd, Llb_ObjBddVar(vOrder, pObj)) );
} }
Cudd_RecursiveDeref( dd, bSupp ); Cudd_RecursiveDeref( dd, bSupp );
return Counter; return Counter;
@ -290,7 +285,7 @@ int Llb_Nonlin4CountTerms( DdManager * dd, Aig_Man_t * pAig, Vec_Int_t * vOrder,
/**Function************************************************************* /**Function*************************************************************
Synopsis [Creates quantifiable varaibles for both types of traversal.] Synopsis [Creates quantifiable variables for both types of traversal.]
Description [] Description []
@ -328,7 +323,7 @@ void Llb_Nonlin4PrintGroups( DdManager * dd, Aig_Man_t * pAig, Vec_Int_t * vOrde
/**Function************************************************************* /**Function*************************************************************
Synopsis [Creates quantifiable varaibles for both types of traversal.] Synopsis [Creates quantifiable variables for both types of traversal.]
Description [] Description []
@ -348,10 +343,10 @@ void Llb_Nonlin4PrintSuppProfile( DdManager * dd, Aig_Man_t * pAig, Vec_Int_t *
Aig_ManForEachObj( pAig, pObj, i ) Aig_ManForEachObj( pAig, pObj, i )
{ {
if ( Llb_MnxBddVar(vOrder, pObj) < 0 ) if ( Llb_ObjBddVar(vOrder, pObj) < 0 )
continue; continue;
// remove variables that do not participate // remove variables that do not participate
if ( pSupp[Llb_MnxBddVar(vOrder, pObj)] == 0 ) if ( pSupp[Llb_ObjBddVar(vOrder, pObj)] == 0 )
{ {
if ( Aig_ObjIsNode(pObj) ) if ( Aig_ObjIsNode(pObj) )
Vec_IntWriteEntry( vOrder, Aig_ObjId(pObj), -1 ); Vec_IntWriteEntry( vOrder, Aig_ObjId(pObj), -1 );
@ -371,7 +366,8 @@ void Llb_Nonlin4PrintSuppProfile( DdManager * dd, Aig_Man_t * pAig, Vec_Int_t *
} }
ABC_FREE( pSupp ); ABC_FREE( pSupp );
printf( "Variable counts: all =%4d ", nSuppAll ); printf( "Groups =%3d ", Vec_PtrSize(vGroups) );
printf( "Variables: all =%4d ", nSuppAll );
printf( "pi =%4d ", nSuppPi ); printf( "pi =%4d ", nSuppPi );
printf( "po =%4d ", nSuppPo ); printf( "po =%4d ", nSuppPo );
printf( "lo =%4d ", nSuppLo ); printf( "lo =%4d ", nSuppLo );
@ -402,10 +398,10 @@ void Llb_Nonlin4Cluster( Aig_Man_t * pAig, DdManager ** pdd, Vec_Int_t ** pvOrde
// create the BDD manager // create the BDD manager
vOrder = Llb_Nonlin4FindOrder( pAig, &nVarNum ); vOrder = Llb_Nonlin4FindOrder( pAig, &nVarNum );
dd = Cudd_Init( nVarNum, 0, CUDD_UNIQUE_SLOTS, CUDD_CACHE_SLOTS, 0 ); dd = Cudd_Init( nVarNum, 0, CUDD_UNIQUE_SLOTS, CUDD_CACHE_SLOTS, 0 );
Cudd_AutodynEnable( dd, CUDD_REORDER_SYMM_SIFT ); // Cudd_AutodynEnable( dd, CUDD_REORDER_SYMM_SIFT );
vVars2Q = Llb_Nonlin4FindVars2Q( dd, pAig, vOrder ); vVars2Q = Llb_Nonlin4FindVars2Q( dd, pAig, vOrder );
vParts = Llb_Nonlin4FindPartitions( dd, pAig, vOrder ); vParts = Llb_Nonlin4FindPartitions( dd, pAig, vOrder, 0 );
vGroups = Llb_Nonlin4Group( dd, vParts, vVars2Q, nBddMax ); vGroups = Llb_Nonlin4Group( dd, vParts, vVars2Q, nBddMax );
Vec_IntFree( vVars2Q ); Vec_IntFree( vVars2Q );

280
src/aig/llb/llb4Nonlin.c
View File

@ -54,8 +54,6 @@ struct Llb_Mnx_t_
int timeTotal; int timeTotal;
}; };
static inline int Llb_MnxBddVar( Vec_Int_t * vOrder, Aig_Obj_t * pObj ) { return Vec_IntEntry(vOrder, Aig_ObjId(pObj)); }
//extern int timeBuild, timeAndEx, timeOther; //extern int timeBuild, timeAndEx, timeOther;
//extern int nSuppMax; //extern int nSuppMax;
@ -77,14 +75,14 @@ static inline int Llb_MnxBddVar( Vec_Int_t * vOrder, Aig_Obj_t * pObj ) { return
DdNode * Llb_Nonlin4ComputeBad( DdManager * dd, Aig_Man_t * pAig, Vec_Int_t * vOrder ) DdNode * Llb_Nonlin4ComputeBad( DdManager * dd, Aig_Man_t * pAig, Vec_Int_t * vOrder )
{ {
Vec_Ptr_t * vNodes; Vec_Ptr_t * vNodes;
DdNode * bBdd, * bBdd0, * bBdd1, * bTemp, * bResult; DdNode * bBdd, * bBdd0, * bBdd1, * bTemp, * bResult, * bCube;
Aig_Obj_t * pObj; Aig_Obj_t * pObj;
int i; int i;
Aig_ManCleanData( pAig ); Aig_ManCleanData( pAig );
// assign elementary variables // assign elementary variables
Aig_ManConst1(pAig)->pData = Cudd_ReadOne(dd); Aig_ManConst1(pAig)->pData = Cudd_ReadOne(dd);
Aig_ManForEachPi( pAig, pObj, i ) Aig_ManForEachPi( pAig, pObj, i )
pObj->pData = Cudd_bddIthVar( dd, Llb_MnxBddVar(vOrder, pObj) ); pObj->pData = Cudd_bddIthVar( dd, Llb_ObjBddVar(vOrder, pObj) );
// compute internal nodes // compute internal nodes
vNodes = Aig_ManDfsNodes( pAig, (Aig_Obj_t **)Vec_PtrArray(pAig->vPos), Saig_ManPoNum(pAig) ); vNodes = Aig_ManDfsNodes( pAig, (Aig_Obj_t **)Vec_PtrArray(pAig->vPos), Saig_ManPoNum(pAig) );
Vec_PtrForEachEntry( Aig_Obj_t *, vNodes, pObj, i ) Vec_PtrForEachEntry( Aig_Obj_t *, vNodes, pObj, i )
@ -125,7 +123,18 @@ DdNode * Llb_Nonlin4ComputeBad( DdManager * dd, Aig_Man_t * pAig, Vec_Int_t * vO
Cudd_RecursiveDeref( dd, (DdNode *)pObj->pData ); Cudd_RecursiveDeref( dd, (DdNode *)pObj->pData );
Vec_PtrFree( vNodes ); Vec_PtrFree( vNodes );
if ( bResult ) if ( bResult )
{
bCube = Cudd_ReadOne(dd); Cudd_Ref( bCube );
Saig_ManForEachPi( pAig, pObj, i )
{
bCube = Cudd_bddAnd( dd, bTemp = bCube, (DdNode *)pObj->pData ); Cudd_Ref( bCube );
Cudd_RecursiveDeref( dd, bTemp );
}
bResult = Cudd_bddExistAbstract( dd, bTemp = bResult, bCube ); Cudd_Ref( bResult );
Cudd_RecursiveDeref( dd, bTemp );
Cudd_RecursiveDeref( dd, bCube );
Cudd_Deref( bResult ); Cudd_Deref( bResult );
}
//if ( bResult ) //if ( bResult )
//printf( "Bad state = %d.\n", Cudd_DagSize(bResult) ); //printf( "Bad state = %d.\n", Cudd_DagSize(bResult) );
return bResult; return bResult;
@ -152,15 +161,15 @@ Vec_Ptr_t * Llb_Nonlin4DerivePartitions( DdManager * dd, Aig_Man_t * pAig, Vec_I
// assign elementary variables // assign elementary variables
Aig_ManConst1(pAig)->pData = Cudd_ReadOne(dd); Aig_ManConst1(pAig)->pData = Cudd_ReadOne(dd);
Aig_ManForEachPi( pAig, pObj, i ) Aig_ManForEachPi( pAig, pObj, i )
pObj->pData = Cudd_bddIthVar( dd, Llb_MnxBddVar(vOrder, pObj) ); pObj->pData = Cudd_bddIthVar( dd, Llb_ObjBddVar(vOrder, pObj) );
Aig_ManForEachNode( pAig, pObj, i ) Aig_ManForEachNode( pAig, pObj, i )
if ( Llb_MnxBddVar(vOrder, pObj) >= 0 ) if ( Llb_ObjBddVar(vOrder, pObj) >= 0 )
{ {
pObj->pData = Cudd_bddIthVar( dd, Llb_MnxBddVar(vOrder, pObj) ); pObj->pData = Cudd_bddIthVar( dd, Llb_ObjBddVar(vOrder, pObj) );
Cudd_Ref( (DdNode *)pObj->pData ); Cudd_Ref( (DdNode *)pObj->pData );
} }
Saig_ManForEachLi( pAig, pObj, i ) Saig_ManForEachLi( pAig, pObj, i )
pObj->pData = Cudd_bddIthVar( dd, Llb_MnxBddVar(vOrder, pObj) ); pObj->pData = Cudd_bddIthVar( dd, Llb_ObjBddVar(vOrder, pObj) );
// compute intermediate BDDs // compute intermediate BDDs
vRoots = Vec_PtrAlloc( 100 ); vRoots = Vec_PtrAlloc( 100 );
Aig_ManForEachNode( pAig, pObj, i ) Aig_ManForEachNode( pAig, pObj, i )
@ -252,7 +261,7 @@ void Llb_Nonlin4CreateOrder_rec( Aig_Man_t * pAig, Aig_Obj_t * pObj, Vec_Int_t *
if ( Aig_ObjIsTravIdCurrent(pAig, pObj) ) if ( Aig_ObjIsTravIdCurrent(pAig, pObj) )
return; return;
Aig_ObjSetTravIdCurrent( pAig, pObj ); Aig_ObjSetTravIdCurrent( pAig, pObj );
assert( Llb_MnxBddVar(vOrder, pObj) < 0 ); assert( Llb_ObjBddVar(vOrder, pObj) < 0 );
if ( Aig_ObjIsPi(pObj) ) if ( Aig_ObjIsPi(pObj) )
{ {
// if ( Saig_ObjIsLo(pAig, pObj) ) // if ( Saig_ObjIsLo(pAig, pObj) )
@ -345,7 +354,7 @@ printf( "Techmapping added %d pivots.\n", Vec_IntSize(vNodes) );
Llb_Nonlin4CreateOrder_rec( pAig, Aig_ObjFanin0(pObj), vOrder, &Counter ); Llb_Nonlin4CreateOrder_rec( pAig, Aig_ObjFanin0(pObj), vOrder, &Counter );
} }
Aig_ManForEachPi( pAig, pObj, i ) Aig_ManForEachPi( pAig, pObj, i )
if ( Llb_MnxBddVar(vOrder, pObj) < 0 ) if ( Llb_ObjBddVar(vOrder, pObj) < 0 )
{ {
// if ( Saig_ObjIsLo(pAig, pObj) ) // if ( Saig_ObjIsLo(pAig, pObj) )
// Vec_IntWriteEntry( vOrder, Aig_ObjId(Saig_ObjLoToLi(pAig, pObj)), Counter++ ); // Vec_IntWriteEntry( vOrder, Aig_ObjId(Saig_ObjLoToLi(pAig, pObj)), Counter++ );
@ -369,24 +378,15 @@ printf( "Techmapping added %d pivots.\n", Vec_IntSize(vNodes) );
SeeAlso [] SeeAlso []
***********************************************************************/ ***********************************************************************/
Vec_Int_t * Llb_Nonlin4CreateVars2Q( DdManager * dd, Aig_Man_t * pAig, Vec_Int_t * vOrder, int fForward ) Vec_Int_t * Llb_Nonlin4CreateVars2Q( DdManager * dd, Aig_Man_t * pAig, Vec_Int_t * vOrder, int fBackward )
{ {
Vec_Int_t * vVars2Q; Vec_Int_t * vVars2Q;
Aig_Obj_t * pObj; Aig_Obj_t * pObjLi, * pObjLo;
int i; int i;
vVars2Q = Vec_IntAlloc( 0 ); vVars2Q = Vec_IntAlloc( 0 );
Vec_IntFill( vVars2Q, Cudd_ReadSize(dd), 1 ); Vec_IntFill( vVars2Q, Cudd_ReadSize(dd), 1 );
if ( fForward ) Saig_ManForEachLiLo( pAig, pObjLi, pObjLo, i )
{ Vec_IntWriteEntry( vVars2Q, Llb_ObjBddVar(vOrder, fBackward ? pObjLo : pObjLi), 0 );
Saig_ManForEachLi( pAig, pObj, i )
Vec_IntWriteEntry( vVars2Q, Llb_MnxBddVar(vOrder, pObj), 0 );
}
else
{
Aig_ManForEachPi( pAig, pObj, i )
// Saig_ManForEachLo( pAig, pObj, i )
Vec_IntWriteEntry( vVars2Q, Llb_MnxBddVar(vOrder, pObj), 0 );
}
return vVars2Q; return vVars2Q;
} }
@ -410,10 +410,10 @@ void Llb_Nonlin4SetupVarMap( DdManager * dd, Aig_Man_t * pAig, Vec_Int_t * vOrde
pVarsY = ABC_ALLOC( DdNode *, Cudd_ReadSize(dd) ); pVarsY = ABC_ALLOC( DdNode *, Cudd_ReadSize(dd) );
Saig_ManForEachLiLo( pAig, pObjLo, pObjLi, i ) Saig_ManForEachLiLo( pAig, pObjLo, pObjLi, i )
{ {
assert( Llb_MnxBddVar(vOrder, pObjLo) >= 0 ); assert( Llb_ObjBddVar(vOrder, pObjLo) >= 0 );
assert( Llb_MnxBddVar(vOrder, pObjLi) >= 0 ); assert( Llb_ObjBddVar(vOrder, pObjLi) >= 0 );
pVarsX[i] = Cudd_bddIthVar( dd, Llb_MnxBddVar(vOrder, pObjLo) ); pVarsX[i] = Cudd_bddIthVar( dd, Llb_ObjBddVar(vOrder, pObjLo) );
pVarsY[i] = Cudd_bddIthVar( dd, Llb_MnxBddVar(vOrder, pObjLi) ); pVarsY[i] = Cudd_bddIthVar( dd, Llb_ObjBddVar(vOrder, pObjLi) );
} }
Cudd_SetVarMap( dd, pVarsX, pVarsY, Aig_ManRegNum(pAig) ); Cudd_SetVarMap( dd, pVarsX, pVarsY, Aig_ManRegNum(pAig) );
ABC_FREE( pVarsX ); ABC_FREE( pVarsX );
@ -431,16 +431,16 @@ void Llb_Nonlin4SetupVarMap( DdManager * dd, Aig_Man_t * pAig, Vec_Int_t * vOrde
SeeAlso [] SeeAlso []
***********************************************************************/ ***********************************************************************/
DdNode * Llb_Nonlin4ComputeInitState( DdManager * dd, Aig_Man_t * pAig, Vec_Int_t * vOrder ) DdNode * Llb_Nonlin4ComputeInitState( DdManager * dd, Aig_Man_t * pAig, Vec_Int_t * vOrder, int fBackward )
{ {
Aig_Obj_t * pObj; Aig_Obj_t * pObjLi, * pObjLo;
DdNode * bRes, * bVar, * bTemp; DdNode * bRes, * bVar, * bTemp;
int i, TimeStop; int i, TimeStop;
TimeStop = dd->TimeStop; dd->TimeStop = 0; TimeStop = dd->TimeStop; dd->TimeStop = 0;
bRes = Cudd_ReadOne( dd ); Cudd_Ref( bRes ); bRes = Cudd_ReadOne( dd ); Cudd_Ref( bRes );
Saig_ManForEachLo( pAig, pObj, i ) Saig_ManForEachLiLo( pAig, pObjLi, pObjLo, i )
{ {
bVar = Cudd_bddIthVar( dd, Llb_MnxBddVar(vOrder, pObj) ); bVar = Cudd_bddIthVar( dd, Llb_ObjBddVar(vOrder, fBackward? pObjLi : pObjLo) );
bRes = Cudd_bddAnd( dd, bTemp = bRes, Cudd_Not(bVar) ); Cudd_Ref( bRes ); bRes = Cudd_bddAnd( dd, bTemp = bRes, Cudd_Not(bVar) ); Cudd_Ref( bRes );
Cudd_RecursiveDeref( dd, bTemp ); Cudd_RecursiveDeref( dd, bTemp );
} }
@ -460,19 +460,20 @@ DdNode * Llb_Nonlin4ComputeInitState( DdManager * dd, Aig_Man_t * pAig, Vec_Int_
SeeAlso [] SeeAlso []
***********************************************************************/ ***********************************************************************/
DdNode * Llb_Nonlin4ComputeCube( DdManager * dd, Aig_Man_t * pAig, Vec_Int_t * vOrder, char * pValues ) DdNode * Llb_Nonlin4ComputeCube( DdManager * dd, Aig_Man_t * pAig, Vec_Int_t * vOrder, char * pValues, int Flag )
{ {
Aig_Obj_t * pObj, * pObjLi; Aig_Obj_t * pObjLo, * pObjLi, * pObjTemp;
DdNode * bRes, * bVar, * bTemp; DdNode * bRes, * bVar, * bTemp;
int i, TimeStop; int i, TimeStop;
TimeStop = dd->TimeStop; dd->TimeStop = 0; TimeStop = dd->TimeStop; dd->TimeStop = 0;
bRes = Cudd_ReadOne( dd ); Cudd_Ref( bRes ); bRes = Cudd_ReadOne( dd ); Cudd_Ref( bRes );
Saig_ManForEachLo( pAig, pObj, i ) Saig_ManForEachLiLo( pAig, pObjLi, pObjLo, i )
{ {
if ( Flag )
pObjTemp = pObjLo, pObjLo = pObjLi, pObjLi = pObjTemp;
// get the correspoding flop input variable // get the correspoding flop input variable
pObjLi = Saig_ObjLoToLi(pAig, pObj); bVar = Cudd_bddIthVar( dd, Llb_ObjBddVar(vOrder, pObjLi) );
bVar = Cudd_bddIthVar( dd, Llb_MnxBddVar(vOrder, pObjLi) ); if ( pValues[Llb_ObjBddVar(vOrder, pObjLo)] != 1 )
if ( pValues[Llb_MnxBddVar(vOrder, pObj)] != 1 )
bVar = Cudd_Not(bVar); bVar = Cudd_Not(bVar);
// create cube // create cube
bRes = Cudd_bddAnd( dd, bTemp = bRes, bVar ); Cudd_Ref( bRes ); bRes = Cudd_bddAnd( dd, bTemp = bRes, bVar ); Cudd_Ref( bRes );
@ -483,6 +484,70 @@ DdNode * Llb_Nonlin4ComputeCube( DdManager * dd, Aig_Man_t * pAig, Vec_Int_t * v
return bRes; return bRes;
} }
/**Function*************************************************************
Synopsis [Compute initial state in terms of current state variables.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Llb_Nonlin4RecordState( Aig_Man_t * pAig, Vec_Int_t * vOrder, unsigned * pState, char * pValues, int fBackward )
{
Aig_Obj_t * pObjLo, * pObjLi;
int i;
Saig_ManForEachLiLo( pAig, pObjLi, pObjLo, i )
if ( pValues[Llb_ObjBddVar(vOrder, fBackward? pObjLi : pObjLo)] == 1 )
Aig_InfoSetBit( pState, i );
}
/**Function*************************************************************
Synopsis [Multiply every partition by the cube.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
Vec_Ptr_t * Llb_Nonlin4Multiply( DdManager * dd, DdNode * bCube, Vec_Ptr_t * vParts )
{
Vec_Ptr_t * vNew;
DdNode * bTemp, * bFunc;
int i;
vNew = Vec_PtrAlloc( Vec_PtrSize(vParts) );
Vec_PtrForEachEntry( DdNode *, vParts, bFunc, i )
{
bTemp = Cudd_bddAnd( dd, bFunc, bCube ); Cudd_Ref( bTemp );
Vec_PtrPush( vNew, bTemp );
}
return vNew;
}
/**Function*************************************************************
Synopsis [Multiply every partition by the cube.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Llb_Nonlin4Deref( DdManager * dd, Vec_Ptr_t * vParts )
{
DdNode * bFunc;
int i;
Vec_PtrForEachEntry( DdNode *, vParts, bFunc, i )
Cudd_RecursiveDeref( dd, bFunc );
Vec_PtrFree( vParts );
}
/**Function************************************************************* /**Function*************************************************************
@ -495,17 +560,24 @@ DdNode * Llb_Nonlin4ComputeCube( DdManager * dd, Aig_Man_t * pAig, Vec_Int_t * v
SeeAlso [] SeeAlso []
***********************************************************************/ ***********************************************************************/
Abc_Cex_t * Llb_Nonlin4DeriveCex( Llb_Mnx_t * p, int fBackward, Vec_Ptr_t * vStates, int fVerbose ) Vec_Ptr_t * Llb_Nonlin4DeriveCex( Llb_Mnx_t * p, int fBackward, int fVerbose )
{ {
Abc_Cex_t * pCex = NULL; Vec_Int_t * vVars2Q;
Vec_Ptr_t * vStates, * vRootsNew;
Aig_Obj_t * pObj; Aig_Obj_t * pObj;
DdNode * bState, * bImage, * bOneCube, * bRing; DdNode * bState, * bImage, * bOneCube, * bRing;
int i, v, RetValue, nPiOffset = -1, clk = clock(); int i, v, RetValue, clk = clock();
char * pValues; char * pValues;
assert( Vec_PtrSize(p->vRings) > 0 ); assert( Vec_PtrSize(p->vRings) > 0 );
// disable the timeout // disable the timeout
p->dd->TimeStop = 0; p->dd->TimeStop = 0;
// start the state set
vStates = Vec_PtrAllocSimInfo( Vec_PtrSize(p->vRings), Aig_BitWordNum(Aig_ManRegNum(p->pAig)) );
Vec_PtrCleanSimInfo( vStates, 0, Aig_BitWordNum(Aig_ManRegNum(p->pAig)) );
if ( fBackward )
Vec_PtrReverseOrder( vStates );
// get the last cube // get the last cube
pValues = ABC_ALLOC( char, Cudd_ReadSize(p->dd) ); pValues = ABC_ALLOC( char, Cudd_ReadSize(p->dd) );
bOneCube = Cudd_bddIntersect( p->dd, (DdNode *)Vec_PtrEntryLast(p->vRings), p->bBad ); Cudd_Ref( bOneCube ); bOneCube = Cudd_bddIntersect( p->dd, (DdNode *)Vec_PtrEntryLast(p->vRings), p->bBad ); Cudd_Ref( bOneCube );
@ -514,45 +586,28 @@ Abc_Cex_t * Llb_Nonlin4DeriveCex( Llb_Mnx_t * p, int fBackward, Vec_Ptr_t * vSta
assert( RetValue ); assert( RetValue );
// record the cube // record the cube
if ( vStates == NULL ) Llb_Nonlin4RecordState( p->pAig, p->vOrder, (unsigned *)Vec_PtrEntryLast(vStates), pValues, fBackward );
{
// allocate room for the counter-example
pCex = Abc_CexAlloc( Saig_ManRegNum(p->pAig), Saig_ManPiNum(p->pAig), Vec_PtrSize(p->vRings) );
pCex->iFrame = Vec_PtrSize(p->vRings) - 1;
pCex->iPo = -1;
// write PIs of the counter-example
nPiOffset = Saig_ManRegNum(p->pAig) + Saig_ManPiNum(p->pAig) * (Vec_PtrSize(p->vRings) - 1);
Saig_ManForEachPi( p->pAig, pObj, i )
if ( pValues[Llb_MnxBddVar(p->vOrder, pObj)] == 1 )
Aig_InfoSetBit( pCex->pData, nPiOffset + i );
}
else
{
Saig_ManForEachLo( p->pAig, pObj, i )
if ( pValues[Llb_MnxBddVar(p->vOrder, pObj)] == 1 )
Aig_InfoSetBit( (unsigned *)Vec_PtrEntryLast(vStates), i );
}
// update quantifiable vars
Vec_IntFreeP( &p->vVars2Q );
p->vVars2Q = Llb_Nonlin4CreateVars2Q( p->dd, p->pAig, p->vOrder, 0 );
// write state in terms of NS variables // write state in terms of NS variables
if ( Vec_PtrSize(p->vRings) > 1 ) if ( Vec_PtrSize(p->vRings) > 1 )
{ {
bState = Llb_Nonlin4ComputeCube( p->dd, p->pAig, p->vOrder, pValues ); Cudd_Ref( bState ); bState = Llb_Nonlin4ComputeCube( p->dd, p->pAig, p->vOrder, pValues, fBackward ); Cudd_Ref( bState );
} }
// perform backward analysis // perform backward analysis
vVars2Q = Llb_Nonlin4CreateVars2Q( p->dd, p->pAig, p->vOrder, !fBackward );
Vec_PtrForEachEntryReverse( DdNode *, p->vRings, bRing, v ) Vec_PtrForEachEntryReverse( DdNode *, p->vRings, bRing, v )
{ {
if ( v == Vec_PtrSize(p->vRings) - 1 ) if ( v == Vec_PtrSize(p->vRings) - 1 )
continue; continue;
// compute the next states
bImage = Llb_Nonlin4Image( p->dd, p->vRoots, bState, p->vVars2Q ); // preprocess partitions
assert( bImage != NULL ); vRootsNew = Llb_Nonlin4Multiply( p->dd, bState, p->vRoots );
Cudd_Ref( bImage );
Cudd_RecursiveDeref( p->dd, bState ); Cudd_RecursiveDeref( p->dd, bState );
// compute the next states
bImage = Llb_Nonlin4Image( p->dd, vRootsNew, NULL, vVars2Q ); Cudd_Ref( bImage );
Llb_Nonlin4Deref( p->dd, vRootsNew );
// intersect with the previous set // intersect with the previous set
bOneCube = Cudd_bddIntersect( p->dd, bImage, bRing ); Cudd_Ref( bOneCube ); bOneCube = Cudd_bddIntersect( p->dd, bImage, bRing ); Cudd_Ref( bOneCube );
Cudd_RecursiveDeref( p->dd, bImage ); Cudd_RecursiveDeref( p->dd, bImage );
@ -563,46 +618,26 @@ Abc_Cex_t * Llb_Nonlin4DeriveCex( Llb_Mnx_t * p, int fBackward, Vec_Ptr_t * vSta
assert( RetValue ); assert( RetValue );
// record the cube // record the cube
if ( vStates == NULL ) Llb_Nonlin4RecordState( p->pAig, p->vOrder, (unsigned *)Vec_PtrEntry(vStates, v), pValues, fBackward );
{
// write PIs of counter-example
nPiOffset -= Saig_ManPiNum(p->pAig);
Saig_ManForEachPi( p->pAig, pObj, i )
if ( pValues[Llb_MnxBddVar(p->vOrder, pObj)] == 1 )
Aig_InfoSetBit( pCex->pData, nPiOffset + i );
}
else
{
Saig_ManForEachLo( p->pAig, pObj, i )
if ( pValues[Llb_MnxBddVar(p->vOrder, pObj)] == 1 )
Aig_InfoSetBit( (unsigned *)Vec_PtrEntry(vStates, v), i );
}
// check that we get the init state // check that we get the init state
if ( v == 0 ) if ( v == 0 )
{ {
Saig_ManForEachLo( p->pAig, pObj, i ) Saig_ManForEachLo( p->pAig, pObj, i )
assert( pValues[Llb_MnxBddVar(p->vOrder, pObj)] == 0 ); assert( fBackward || pValues[Llb_ObjBddVar(p->vOrder, pObj)] == 0 );
break; break;
} }
// write state in terms of NS variables // write state in terms of NS variables
bState = Llb_Nonlin4ComputeCube( p->dd, p->pAig, p->vOrder, pValues ); Cudd_Ref( bState ); bState = Llb_Nonlin4ComputeCube( p->dd, p->pAig, p->vOrder, pValues, fBackward ); Cudd_Ref( bState );
} }
assert( vStates != NULL || nPiOffset == Saig_ManRegNum(p->pAig) ); Vec_IntFree( vVars2Q );
// update the output number
if ( pCex )
{
//Abc_CexPrint( pCex );
RetValue = Saig_ManFindFailedPoCex( p->pAig, pCex );
assert( RetValue >= 0 && RetValue < Saig_ManPoNum(p->pAig) ); // invalid CEX!!!
pCex->iPo = RetValue;
}
// cleanup
ABC_FREE( pValues ); ABC_FREE( pValues );
if ( fBackward )
Vec_PtrReverseOrder( vStates );
// if ( fVerbose ) // if ( fVerbose )
// Abc_PrintTime( 1, "BDD-based cex generation time", clock() - clk ); // Abc_PrintTime( 1, "BDD-based cex generation time", clock() - clk );
return pCex; return vStates;
} }
@ -632,6 +667,38 @@ int Llb_Nonlin4Reachability( Llb_Mnx_t * p )
// set the stop time parameter // set the stop time parameter
p->dd->TimeStop = p->pPars->TimeTarget; p->dd->TimeStop = p->pPars->TimeTarget;
if ( p->pPars->fBackward )
{
// create bad state in the ring manager
if ( !p->pPars->fSkipOutCheck )
{
p->bBad = Llb_Nonlin4ComputeInitState( p->dd, p->pAig, p->vOrder, p->pPars->fBackward ); Cudd_Ref( p->bBad );
}
// create init state
p->bCurrent = Llb_Nonlin4ComputeBad( p->dd, p->pAig, p->vOrder );
if ( p->bCurrent == NULL )
{
if ( !p->pPars->fSilent )
printf( "Reached timeout (%d seconds) during constructing the bad states.\n", p->pPars->TimeLimit );
p->pPars->iFrame = -1;
return -1;
}
Cudd_Ref( p->bCurrent );
// remap into the next states
p->bCurrent = Cudd_bddVarMap( p->dd, bAux = p->bCurrent );
if ( p->bCurrent == NULL )
{
if ( !p->pPars->fSilent )
printf( "Reached timeout (%d seconds) during remapping bad states.\n", p->pPars->TimeLimit );
Cudd_RecursiveDeref( p->dd, bAux );
p->pPars->iFrame = -1;
return -1;
}
Cudd_Ref( p->bCurrent );
Cudd_RecursiveDeref( p->dd, bAux );
}
else
{
// create bad state in the ring manager // create bad state in the ring manager
if ( !p->pPars->fSkipOutCheck ) if ( !p->pPars->fSkipOutCheck )
{ {
@ -645,10 +712,11 @@ int Llb_Nonlin4Reachability( Llb_Mnx_t * p )
} }
Cudd_Ref( p->bBad ); Cudd_Ref( p->bBad );
} }
// compute the starting set of states // compute the starting set of states
p->bCurrent = Llb_Nonlin4ComputeInitState( p->dd, p->pAig, p->vOrder ); Cudd_Ref( p->bCurrent ); p->bCurrent = Llb_Nonlin4ComputeInitState( p->dd, p->pAig, p->vOrder, p->pPars->fBackward ); Cudd_Ref( p->bCurrent );
p->bReached = p->bCurrent; Cudd_Ref( p->bCurrent ); }
// perform iterations
p->bReached = p->bCurrent; Cudd_Ref( p->bReached );
for ( nIters = 0; nIters < p->pPars->nIterMax; nIters++ ) for ( nIters = 0; nIters < p->pPars->nIterMax; nIters++ )
{ {
clkIter = clock(); clkIter = clock();
@ -667,24 +735,14 @@ int Llb_Nonlin4Reachability( Llb_Mnx_t * p )
// check it for bad states // check it for bad states
if ( !p->pPars->fSkipOutCheck && !Cudd_bddLeq( p->dd, p->bCurrent, Cudd_Not(p->bBad) ) ) if ( !p->pPars->fSkipOutCheck && !Cudd_bddLeq( p->dd, p->bCurrent, Cudd_Not(p->bBad) ) )
{ {
Vec_Ptr_t * vStates;
assert( p->pAig->pSeqModel == NULL ); assert( p->pAig->pSeqModel == NULL );
if ( p->pPars->fCluster ) vStates = Llb_Nonlin4DeriveCex( p, p->pPars->fBackward, p->pPars->fVerbose );
{
Vec_Ptr_t * vStates = Vec_PtrAllocSimInfo( Vec_PtrSize(p->vRings), Aig_BitWordNum(Aig_ManRegNum(p->pAig)) );
Vec_PtrCleanSimInfo( vStates, 0, Aig_BitWordNum(Aig_ManRegNum(p->pAig)) );
p->pAig->pSeqModel = Llb_Nonlin4DeriveCex( p, p->pPars->fBackward, vStates, p->pPars->fVerbose );
ABC_FREE( p->pAig->pSeqModel );
p->pAig->pSeqModel = Llb4_Nonlin4TransformCex( p->pAig, vStates, p->pPars->fVerbose ); p->pAig->pSeqModel = Llb4_Nonlin4TransformCex( p->pAig, vStates, p->pPars->fVerbose );
Vec_PtrFreeP( &vStates ); Vec_PtrFreeP( &vStates );
} if ( !p->pPars->fSilent )
else
p->pAig->pSeqModel = Llb_Nonlin4DeriveCex( p, p->pPars->fBackward, NULL, p->pPars->fVerbose );
if ( !p->pPars->fSilent && p->pAig->pSeqModel )
{ {
if ( !p->pPars->fBackward )
printf( "Output %d was asserted in frame %d (use \"write_counter\" to dump a witness). ", p->pAig->pSeqModel->iPo, nIters ); printf( "Output %d was asserted in frame %d (use \"write_counter\" to dump a witness). ", p->pAig->pSeqModel->iPo, nIters );
else
printf( "Output ??? was asserted in frame %d (counter-example is not produced). ", nIters );
Abc_PrintTime( 1, "Time", clock() - clk ); Abc_PrintTime( 1, "Time", clock() - clk );
} }
p->pPars->iFrame = nIters - 1; p->pPars->iFrame = nIters - 1;
@ -880,7 +938,7 @@ Llb_Mnx_t * Llb_MnxStart( Aig_Man_t * pAig, Gia_ParLlb_t * pPars )
} }
Llb_Nonlin4SetupVarMap( p->dd, pAig, p->vOrder ); Llb_Nonlin4SetupVarMap( p->dd, pAig, p->vOrder );
p->vVars2Q = Llb_Nonlin4CreateVars2Q( p->dd, pAig, p->vOrder, 1 ); p->vVars2Q = Llb_Nonlin4CreateVars2Q( p->dd, pAig, p->vOrder, p->pPars->fBackward );
p->vRings = Vec_PtrAlloc( 100 ); p->vRings = Vec_PtrAlloc( 100 );
if ( pPars->fReorder ) if ( pPars->fReorder )

2
src/aig/llb/llbInt.h
View File

@ -107,6 +107,8 @@ struct Llb_Grp_t_
/// MACRO DEFINITIONS /// /// MACRO DEFINITIONS ///
//////////////////////////////////////////////////////////////////////// ////////////////////////////////////////////////////////////////////////
static inline int Llb_ObjBddVar( Vec_Int_t * vOrder, Aig_Obj_t * pObj ) { return Vec_IntEntry(vOrder, Aig_ObjId(pObj)); }
//////////////////////////////////////////////////////////////////////// ////////////////////////////////////////////////////////////////////////
/// FUNCTION DECLARATIONS /// /// FUNCTION DECLARATIONS ///
//////////////////////////////////////////////////////////////////////// ////////////////////////////////////////////////////////////////////////

101
src/base/abci/abc.c
View File

@ -276,6 +276,7 @@ static int Abc_CommandFold ( Abc_Frame_t * pAbc, int argc, cha
static int Abc_CommandBm ( Abc_Frame_t * pAbc, int argc, char ** argv ); static int Abc_CommandBm ( Abc_Frame_t * pAbc, int argc, char ** argv );
static int Abc_CommandTestCex ( Abc_Frame_t * pAbc, int argc, char ** argv ); static int Abc_CommandTestCex ( Abc_Frame_t * pAbc, int argc, char ** argv );
static int Abc_CommandPdr ( Abc_Frame_t * pAbc, int argc, char ** argv ); static int Abc_CommandPdr ( Abc_Frame_t * pAbc, int argc, char ** argv );
static int Abc_CommandReconcile ( Abc_Frame_t * pAbc, int argc, char ** argv );
static int Abc_CommandTraceStart ( Abc_Frame_t * pAbc, int argc, char ** argv ); static int Abc_CommandTraceStart ( Abc_Frame_t * pAbc, int argc, char ** argv );
static int Abc_CommandTraceCheck ( Abc_Frame_t * pAbc, int argc, char ** argv ); static int Abc_CommandTraceCheck ( Abc_Frame_t * pAbc, int argc, char ** argv );
@ -693,6 +694,7 @@ void Abc_Init( Abc_Frame_t * pAbc )
Cmd_CommandAdd( pAbc, "Verification", "bm", Abc_CommandBm, 1 ); Cmd_CommandAdd( pAbc, "Verification", "bm", Abc_CommandBm, 1 );
Cmd_CommandAdd( pAbc, "Verification", "testcex", Abc_CommandTestCex, 0 ); Cmd_CommandAdd( pAbc, "Verification", "testcex", Abc_CommandTestCex, 0 );
Cmd_CommandAdd( pAbc, "Verification", "pdr", Abc_CommandPdr, 0 ); Cmd_CommandAdd( pAbc, "Verification", "pdr", Abc_CommandPdr, 0 );
Cmd_CommandAdd( pAbc, "Verification", "reconcile", Abc_CommandReconcile, 1 );
Cmd_CommandAdd( pAbc, "ABC8", "*r", Abc_CommandAbc8Read, 0 ); Cmd_CommandAdd( pAbc, "ABC8", "*r", Abc_CommandAbc8Read, 0 );
@ -8527,13 +8529,16 @@ int Abc_CommandTest( Abc_Frame_t * pAbc, int argc, char ** argv )
{ {
// extern void Llb_Nonlin4Cluster( Aig_Man_t * pAig ); // extern void Llb_Nonlin4Cluster( Aig_Man_t * pAig );
// extern void Aig_ManTerSimulate( Aig_Man_t * pAig ); // extern void Aig_ManTerSimulate( Aig_Man_t * pAig );
extern void Llb4_Nonlin4Sweep( Aig_Man_t * pAig, int nBddLimit );
extern Aig_Man_t * Abc_NtkToDar( Abc_Ntk_t * pNtk, int fExors, int fRegisters ); extern Aig_Man_t * Abc_NtkToDar( Abc_Ntk_t * pNtk, int fExors, int fRegisters );
Aig_Man_t * pAig = Abc_NtkToDar( pNtk, 0, 0 ); Aig_Man_t * pAig = Abc_NtkToDar( pNtk, 0, 0 );
// Aig_ManTerSimulate( pAig ); // Aig_ManTerSimulate( pAig );
// Llb_Nonlin4Cluster( pAig ); // Llb_Nonlin4Cluster( pAig );
Llb4_Nonlin4Sweep( pAig, 100 );
Aig_ManStop( pAig ); Aig_ManStop( pAig );
} }
*/ */
/* /*
{ {
extern void Ssm_ManExperiment( char * pFileIn, char * pFileOut ); extern void Ssm_ManExperiment( char * pFileIn, char * pFileOut );
@ -19998,6 +20003,94 @@ usage:
return 1; return 1;
} }
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
int Abc_CommandReconcile( Abc_Frame_t * pAbc, int argc, char ** argv )
{
extern Aig_Man_t * Abc_NtkToDar( Abc_Ntk_t * pNtk, int fExors, int fRegisters );
extern Abc_Cex_t * Llb4_Nonlin4NormalizeCex( Aig_Man_t * pAigOrg, Aig_Man_t * pAigRpm, Abc_Cex_t * pCexRpm );
Abc_Cex_t * pCex;
Abc_Ntk_t * pNtk1, * pNtk2;
Aig_Man_t * pAig1, * pAig2;
int c;
Extra_UtilGetoptReset();
while ( ( c = Extra_UtilGetopt( argc, argv, "h" ) ) != EOF )
{
switch ( c )
{
case 'h':
goto usage;
default:
Abc_Print( -2, "Unknown switch.\n");
goto usage;
}
}
if ( argc != globalUtilOptind + 2 )
{
printf( "Does not seen to have two files names as arguments.\n" );
return 1;
}
if ( pAbc->pCex == NULL )
{
printf( "There is no current counter-example.\n" );
return 1;
}
// derive networks
pNtk1 = Io_Read( argv[globalUtilOptind], Io_ReadFileType(argv[globalUtilOptind]), 1 );
if ( pNtk1 == NULL )
return 1;
pNtk2 = Io_Read( argv[globalUtilOptind+1], Io_ReadFileType(argv[globalUtilOptind+1]), 1 );
if ( pNtk2 == NULL )
{
Abc_NtkDelete( pNtk1 );
return 1;
}
// create counter-examples
pAig1 = Abc_NtkToDar( pNtk1, 0, 0 );
pAig2 = Abc_NtkToDar( pNtk2, 0, 0 );
pCex = Llb4_Nonlin4NormalizeCex( pAig1, pAig2, pAbc->pCex );
Aig_ManStop( pAig1 );
Aig_ManStop( pAig2 );
Abc_NtkDelete( pNtk2 );
if ( pCex == NULL )
{
printf( "Counter-example computation has failed.\n" );
Abc_NtkDelete( pNtk1 );
return 1;
}
// replace the current network
Abc_FrameReplaceCurrentNetwork( pAbc, pNtk1 );
// update the counter-example
pAbc->nFrames = pCex->iFrame;
Abc_FrameReplaceCex( pAbc, &pCex );
return 0;
usage:
Abc_Print( -2, "usage: reconcile [-h] <fileOrigin> <fileReparam>\n" );
Abc_Print( -2, "\t reconciles current CEX with <fileOrigin>\n" );
Abc_Print( -2, "\t More specifically:\n" );
Abc_Print( -2, "\t (i) assumes that <fileReparam> is an AIG derived by input\n" );
Abc_Print( -2, "\t reparametrization of <fileOrigin> without seq synthesis;\n" );
Abc_Print( -2, "\t (ii) assumes that current CEX is valid for <fileReparam>;\n" );
Abc_Print( -2, "\t (iii) derives new CEX for <fileOrigin> and sets this CEX\n" );
Abc_Print( -2, "\t and <fileOrigin> to be current CEX and current network\n" );
Abc_Print( -2, "\t<fileOrigin> : file name with the original AIG\n");
Abc_Print( -2, "\t<fileReparam> : file name with the reparametrized AIG\n");
Abc_Print( -2, "\t-h : print the command usage\n");
return 1;
}
/**Function************************************************************* /**Function*************************************************************
Synopsis [] Synopsis []
@ -27995,7 +28088,7 @@ int Abc_CommandAbc9ReachY( Abc_Frame_t * pAbc, int argc, char ** argv )
pPars->fReorder = 0; pPars->fReorder = 0;
pPars->nBddMax = 1000; pPars->nBddMax = 1000;
Extra_UtilGetoptReset(); Extra_UtilGetoptReset();
while ( ( c = Extra_UtilGetopt( argc, argv, "BFTLcryzvwh" ) ) != EOF ) while ( ( c = Extra_UtilGetopt( argc, argv, "BFTLbcryzvwh" ) ) != EOF )
{ {
switch ( c ) switch ( c )
{ {
@ -28041,6 +28134,9 @@ int Abc_CommandAbc9ReachY( Abc_Frame_t * pAbc, int argc, char ** argv )
pLogFileName = argv[globalUtilOptind]; pLogFileName = argv[globalUtilOptind];
globalUtilOptind++; globalUtilOptind++;
break; break;
case 'b':
pPars->fBackward ^= 1;
break;
case 'c': case 'c':
pPars->fCluster ^= 1; pPars->fCluster ^= 1;
break; break;
@ -28090,12 +28186,13 @@ int Abc_CommandAbc9ReachY( Abc_Frame_t * pAbc, int argc, char ** argv )
return 0; return 0;
usage: usage:
Abc_Print( -2, "usage: &reachy [-BFT num] [-L file] [-cryzvh]\n" ); Abc_Print( -2, "usage: &reachy [-BFT num] [-L file] [-bcryzvh]\n" );
Abc_Print( -2, "\t model checking via BDD-based reachability (non-linear-QS-based)\n" ); Abc_Print( -2, "\t model checking via BDD-based reachability (non-linear-QS-based)\n" );
Abc_Print( -2, "\t-B num : the BDD node threshold for clustering [default = %d]\n", pPars->nBddMax ); Abc_Print( -2, "\t-B num : the BDD node threshold for clustering [default = %d]\n", pPars->nBddMax );
Abc_Print( -2, "\t-F num : max number of reachability iterations [default = %d]\n", pPars->nIterMax ); Abc_Print( -2, "\t-F num : max number of reachability iterations [default = %d]\n", pPars->nIterMax );
Abc_Print( -2, "\t-T num : approximate time limit in seconds (0=infinite) [default = %d]\n", pPars->TimeLimit ); Abc_Print( -2, "\t-T num : approximate time limit in seconds (0=infinite) [default = %d]\n", pPars->TimeLimit );
Abc_Print( -2, "\t-L file: the log file name [default = %s]\n", pLogFileName ? pLogFileName : "no logging" ); Abc_Print( -2, "\t-L file: the log file name [default = %s]\n", pLogFileName ? pLogFileName : "no logging" );
Abc_Print( -2, "\t-b : enable using backward enumeration [default = %s]\n", pPars->fBackward? "yes": "no" );
Abc_Print( -2, "\t-c : enable reparametrization clustering [default = %s]\n", pPars->fCluster? "yes": "no" ); Abc_Print( -2, "\t-c : enable reparametrization clustering [default = %s]\n", pPars->fCluster? "yes": "no" );
Abc_Print( -2, "\t-r : enable additional BDD var reordering before image [default = %s]\n", pPars->fReorder? "yes": "no" ); Abc_Print( -2, "\t-r : enable additional BDD var reordering before image [default = %s]\n", pPars->fReorder? "yes": "no" );
Abc_Print( -2, "\t-y : skip checking property outputs [default = %s]\n", pPars->fSkipOutCheck? "yes": "no" ); Abc_Print( -2, "\t-y : skip checking property outputs [default = %s]\n", pPars->fSkipOutCheck? "yes": "no" );