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-rw-r--r--src/aig/fra/fra.h15
-rw-r--r--src/aig/fra/fraAnd.c156
-rw-r--r--src/aig/fra/fraCore.c195
-rw-r--r--src/aig/fra/fraDfs.c87
-rw-r--r--src/aig/fra/fraMan.c3
-rw-r--r--src/aig/fra/fraSat.c17
-rw-r--r--src/aig/fra/module.make4
7 files changed, 306 insertions, 171 deletions
diff --git a/src/aig/fra/fra.h b/src/aig/fra/fra.h
index 7f2df105..127882ea 100644
--- a/src/aig/fra/fra.h
+++ b/src/aig/fra/fra.h
@@ -60,6 +60,7 @@ struct Fra_Par_t_
int MaxScore; // max score after which resimulation is used
double dActConeRatio; // the ratio of cone to be bumped
double dActConeBumpMax; // the largest bump in activity
+ int fChoicing; // enables choicing
int fSpeculate; // use speculative reduction
int fProve; // prove the miter outputs
int fVerbose; // verbose output
@@ -101,6 +102,7 @@ struct Fra_Man_t_
// various data members
Aig_Obj_t ** pMemFraig; // memory allocated for points to the fraig nodes
Aig_Obj_t ** pMemRepr; // memory allocated for points to the node representatives
+ Aig_Obj_t ** pMemReprFra; // memory allocated for points to the node representatives in the FRAIG
Vec_Ptr_t ** pMemFanins; // the arrays of fanins
int * pMemSatNums; // the array of SAT numbers
int nSizeAlloc; // allocated size of the arrays
@@ -118,7 +120,9 @@ struct Fra_Man_t_
int nSatProof;
int nSatFails;
int nSatFailsReal;
- int nSpeculs;
+ int nSpeculs;
+ int nChoices;
+ int nChoicesFake;
// runtime
int timeSim;
int timeTrav;
@@ -141,11 +145,13 @@ static inline unsigned Fra_ObjRandomSim() { return (rand() <<
static inline Aig_Obj_t * Fra_ObjFraig( Aig_Obj_t * pObj ) { return ((Fra_Man_t *)pObj->pData)->pMemFraig[pObj->Id]; }
static inline Aig_Obj_t * Fra_ObjRepr( Aig_Obj_t * pObj ) { return ((Fra_Man_t *)pObj->pData)->pMemRepr[pObj->Id]; }
+static inline Aig_Obj_t * Fra_ObjReprFra( Aig_Obj_t * pObj ) { return ((Fra_Man_t *)pObj->pData)->pMemReprFra[pObj->Id]; }
static inline Vec_Ptr_t * Fra_ObjFaninVec( Aig_Obj_t * pObj ) { return ((Fra_Man_t *)pObj->pData)->pMemFanins[pObj->Id]; }
static inline int Fra_ObjSatNum( Aig_Obj_t * pObj ) { return ((Fra_Man_t *)pObj->pData)->pMemSatNums[pObj->Id]; }
static inline void Fra_ObjSetFraig( Aig_Obj_t * pObj, Aig_Obj_t * pNode ) { ((Fra_Man_t *)pObj->pData)->pMemFraig[pObj->Id] = pNode; }
static inline void Fra_ObjSetRepr( Aig_Obj_t * pObj, Aig_Obj_t * pNode ) { ((Fra_Man_t *)pObj->pData)->pMemRepr[pObj->Id] = pNode; }
+static inline void Fra_ObjSetReprFra( Aig_Obj_t * pObj, Aig_Obj_t * pNode ) { ((Fra_Man_t *)pObj->pData)->pMemReprFra[pObj->Id] = pNode; }
static inline void Fra_ObjSetFaninVec( Aig_Obj_t * pObj, Vec_Ptr_t * vFanins ) { ((Fra_Man_t *)pObj->pData)->pMemFanins[pObj->Id] = vFanins; }
static inline void Fra_ObjSetSatNum( Aig_Obj_t * pObj, int Num ) { ((Fra_Man_t *)pObj->pData)->pMemSatNums[pObj->Id] = Num; }
@@ -160,8 +166,6 @@ static inline Aig_Obj_t * Fra_ObjChild1Fra( Aig_Obj_t * pObj ) { assert( !Aig_I
/// FUNCTION DECLARATIONS ///
////////////////////////////////////////////////////////////////////////
-/*=== fraAnd.c ========================================================*/
-extern void Fra_Sweep( Fra_Man_t * p );
/*=== fraClass.c ========================================================*/
extern void Fra_PrintClasses( Fra_Man_t * p );
extern void Fra_CreateClasses( Fra_Man_t * p );
@@ -170,7 +174,10 @@ extern int Fra_RefineClasses1( Fra_Man_t * p );
/*=== fraCnf.c ========================================================*/
extern void Fra_NodeAddToSolver( Fra_Man_t * p, Aig_Obj_t * pOld, Aig_Obj_t * pNew );
/*=== fraCore.c ========================================================*/
-extern Aig_Man_t * Fra_Perform( Aig_Man_t * pManAig, Fra_Par_t * pParams );
+extern Aig_Man_t * Fra_Perform( Aig_Man_t * pManAig, Fra_Par_t * pPars );
+extern Aig_Man_t * Fra_Choice( Aig_Man_t * pManAig );
+/*=== fraDfs.c ========================================================*/
+extern int Fra_CheckTfi( Fra_Man_t * p, Aig_Obj_t * pNew, Aig_Obj_t * pOld );
/*=== fraMan.c ========================================================*/
extern void Fra_ParamsDefault( Fra_Par_t * pParams );
extern Fra_Man_t * Fra_ManStart( Aig_Man_t * pManAig, Fra_Par_t * pParams );
diff --git a/src/aig/fra/fraAnd.c b/src/aig/fra/fraAnd.c
deleted file mode 100644
index 36b4ccc3..00000000
--- a/src/aig/fra/fraAnd.c
+++ /dev/null
@@ -1,156 +0,0 @@
-/**CFile****************************************************************
-
- FileName [fraAnd.c]
-
- SystemName [ABC: Logic synthesis and verification system.]
-
- PackageName [Fraig FRAIG package.]
-
- Synopsis []
-
- Author [Alan Mishchenko]
-
- Affiliation [UC Berkeley]
-
- Date [Ver. 1.0. Started - June 30, 2007.]
-
- Revision [$Id: fraAnd.c,v 1.00 2007/06/30 00:00:00 alanmi Exp $]
-
-***********************************************************************/
-
-#include "fra.h"
-
-////////////////////////////////////////////////////////////////////////
-/// DECLARATIONS ///
-////////////////////////////////////////////////////////////////////////
-
-////////////////////////////////////////////////////////////////////////
-/// FUNCTION DEFINITIONS ///
-////////////////////////////////////////////////////////////////////////
-
-
-/**Function*************************************************************
-
- Synopsis [Performs fraiging for one node.]
-
- Description [Returns the fraiged node.]
-
- SideEffects []
-
- SeeAlso []
-
-***********************************************************************/
-Aig_Obj_t * Fra_And( Fra_Man_t * p, Aig_Obj_t * pObjOld )
-{
- Aig_Obj_t * pObjOldRepr, * pObjFraig, * pFanin0Fraig, * pFanin1Fraig, * pObjOldReprFraig;
- int RetValue;
- assert( !Aig_IsComplement(pObjOld) );
- assert( Aig_ObjIsNode(pObjOld) );
- // get the fraiged fanins
- pFanin0Fraig = Fra_ObjChild0Fra(pObjOld);
- pFanin1Fraig = Fra_ObjChild1Fra(pObjOld);
- // get the fraiged node
- pObjFraig = Aig_And( p->pManFraig, pFanin0Fraig, pFanin1Fraig );
- if ( Aig_ObjIsConst1(Aig_Regular(pObjFraig)) )
- return pObjFraig;
- Aig_Regular(pObjFraig)->pData = p;
- // get representative of this class
- pObjOldRepr = Fra_ObjRepr(pObjOld);
- if ( pObjOldRepr == NULL || // this is a unique node
- (!p->pPars->fDoSparse && pObjOldRepr == Aig_ManConst1(p->pManAig)) ) // this is a sparse node
- {
- assert( Aig_Regular(pFanin0Fraig) != Aig_Regular(pFanin1Fraig) );
- assert( Aig_Regular(pObjFraig) != Aig_Regular(pFanin0Fraig) );
- assert( Aig_Regular(pObjFraig) != Aig_Regular(pFanin1Fraig) );
- return pObjFraig;
- }
- // get the fraiged representative
- pObjOldReprFraig = Fra_ObjFraig(pObjOldRepr);
- // if the fraiged nodes are the same, return
- if ( Aig_Regular(pObjFraig) == Aig_Regular(pObjOldReprFraig) )
- return pObjFraig;
- assert( Aig_Regular(pObjFraig) != Aig_ManConst1(p->pManFraig) );
-// printf( "Node = %d. Repr = %d.\n", pObjOld->Id, pObjOldRepr->Id );
-
- // if they are proved different, the c-ex will be in p->pPatWords
- RetValue = Fra_NodesAreEquiv( p, Aig_Regular(pObjOldReprFraig), Aig_Regular(pObjFraig) );
- if ( RetValue == 1 ) // proved equivalent
- {
-// pObjOld->fMarkA = 1;
- return Aig_NotCond( pObjOldReprFraig, pObjOld->fPhase ^ pObjOldRepr->fPhase );
- }
- if ( RetValue == -1 ) // failed
- {
- Aig_Obj_t * ppNodes[2] = { Aig_Regular(pObjOldReprFraig), Aig_Regular(pObjFraig) };
- Vec_Ptr_t * vNodes;
-
- if ( !p->pPars->fSpeculate )
- return pObjFraig;
- // substitute the node
-// pObjOld->fMarkB = 1;
- p->nSpeculs++;
-
- vNodes = Aig_ManDfsNodes( p->pManFraig, ppNodes, 2 );
- printf( "%d ", Vec_PtrSize(vNodes) );
- Vec_PtrFree( vNodes );
-
- return Aig_NotCond( pObjOldReprFraig, pObjOld->fPhase ^ pObjOldRepr->fPhase );
- }
-// printf( "Disproved %d and %d.\n", pObjOldRepr->Id, pObjOld->Id );
- // simulate the counter-example and return the Fraig node
-// printf( "Representaive before = %d.\n", Fra_ObjRepr(pObjOld)? Fra_ObjRepr(pObjOld)->Id : -1 );
- Fra_Resimulate( p );
-// printf( "Representaive after = %d.\n", Fra_ObjRepr(pObjOld)? Fra_ObjRepr(pObjOld)->Id : -1 );
- assert( Fra_ObjRepr(pObjOld) != pObjOldRepr );
- return pObjFraig;
-}
-
-/**Function*************************************************************
-
- Synopsis [Performs fraiging for the internal nodes.]
-
- Description []
-
- SideEffects []
-
- SeeAlso []
-
-***********************************************************************/
-void Fra_Sweep( Fra_Man_t * p )
-{
- Aig_Obj_t * pObj, * pObjNew;
- int i, k = 0;
-p->nClassesZero = Vec_PtrSize(p->vClasses1);
-p->nClassesBeg = Vec_PtrSize(p->vClasses) + (int)(Vec_PtrSize(p->vClasses1) > 0);
- // duplicate internal nodes
-// p->pProgress = Extra_ProgressBarStart( stdout, Aig_ManNodeNum(p->pManAig) );
- Aig_ManForEachNode( p->pManAig, pObj, i )
- {
-// Extra_ProgressBarUpdate( p->pProgress, k++, NULL );
- // default to simple strashing if simulation detected a counter-example for a PO
- if ( p->pManFraig->pData )
- pObjNew = Aig_And( p->pManFraig, Fra_ObjChild0Fra(pObj), Fra_ObjChild1Fra(pObj) );
- else
- pObjNew = Fra_And( p, pObj ); // pObjNew can be complemented
- Fra_ObjSetFraig( pObj, pObjNew );
- assert( Fra_ObjFraig(pObj) != NULL );
- }
-// Extra_ProgressBarStop( p->pProgress );
-p->nClassesEnd = Vec_PtrSize(p->vClasses) + (int)(Vec_PtrSize(p->vClasses1) > 0);
- // try to prove the outputs of the miter
- p->nNodesMiter = Aig_ManNodeNum(p->pManFraig);
-// Fra_MiterStatus( p->pManFraig );
-// if ( p->pPars->fProve && p->pManFraig->pData == NULL )
-// Fra_MiterProve( p );
- // add the POs
- Aig_ManForEachPo( p->pManAig, pObj, i )
- Aig_ObjCreatePo( p->pManFraig, Fra_ObjChild0Fra(pObj) );
- // remove dangling nodes
- Aig_ManCleanup( p->pManFraig );
-}
-
-////////////////////////////////////////////////////////////////////////
-/// END OF FILE ///
-////////////////////////////////////////////////////////////////////////
-
-
diff --git a/src/aig/fra/fraCore.c b/src/aig/fra/fraCore.c
index 9e1a9a1a..ca2d0fb4 100644
--- a/src/aig/fra/fraCore.c
+++ b/src/aig/fra/fraCore.c
@@ -30,6 +30,177 @@
/**Function*************************************************************
+ Synopsis [Performs fraiging for one node.]
+
+ Description [Returns the fraiged node.]
+
+ SideEffects []
+
+ SeeAlso []
+
+***********************************************************************/
+Aig_Obj_t * Fra_And( Fra_Man_t * p, Aig_Obj_t * pObjOld )
+{
+ Aig_Obj_t * pObjOldRepr, * pObjFraig, * pFanin0Fraig, * pFanin1Fraig, * pObjOldReprFraig;
+ int RetValue;
+ assert( !Aig_IsComplement(pObjOld) );
+ assert( Aig_ObjIsNode(pObjOld) );
+ // get the fraiged fanins
+ pFanin0Fraig = Fra_ObjChild0Fra(pObjOld);
+ pFanin1Fraig = Fra_ObjChild1Fra(pObjOld);
+ // get the fraiged node
+ pObjFraig = Aig_And( p->pManFraig, pFanin0Fraig, pFanin1Fraig );
+ if ( Aig_ObjIsConst1(Aig_Regular(pObjFraig)) )
+ return pObjFraig;
+ Aig_Regular(pObjFraig)->pData = p;
+ // get representative of this class
+ pObjOldRepr = Fra_ObjRepr(pObjOld);
+ if ( pObjOldRepr == NULL || // this is a unique node
+ (!p->pPars->fDoSparse && pObjOldRepr == Aig_ManConst1(p->pManAig)) ) // this is a sparse node
+ {
+ assert( Aig_Regular(pFanin0Fraig) != Aig_Regular(pFanin1Fraig) );
+ assert( Aig_Regular(pObjFraig) != Aig_Regular(pFanin0Fraig) );
+ assert( Aig_Regular(pObjFraig) != Aig_Regular(pFanin1Fraig) );
+ return pObjFraig;
+ }
+ // get the fraiged representative
+ pObjOldReprFraig = Fra_ObjFraig(pObjOldRepr);
+ // if the fraiged nodes are the same, return
+ if ( Aig_Regular(pObjFraig) == Aig_Regular(pObjOldReprFraig) )
+ return pObjFraig;
+ assert( Aig_Regular(pObjFraig) != Aig_ManConst1(p->pManFraig) );
+// printf( "Node = %d. Repr = %d.\n", pObjOld->Id, pObjOldRepr->Id );
+
+ // if they are proved different, the c-ex will be in p->pPatWords
+ RetValue = Fra_NodesAreEquiv( p, Aig_Regular(pObjOldReprFraig), Aig_Regular(pObjFraig) );
+ if ( RetValue == 1 ) // proved equivalent
+ {
+// pObjOld->fMarkA = 1;
+ if ( p->pPars->fChoicing && !Fra_CheckTfi( p, Aig_Regular(pObjFraig), Aig_Regular(pObjOldReprFraig) ) )
+ {
+// Fra_ObjSetReprFra( Aig_Regular(pObjFraig), Aig_Regular(pObjOldReprFraig) );
+ Aig_Obj_t * pObjNew = Aig_Regular(pObjFraig);
+ Aig_Obj_t * pObjOld = Aig_Regular(pObjOldReprFraig);
+ Aig_Obj_t * pTemp;
+ assert( pObjNew != pObjOld );
+ for ( pTemp = Fra_ObjReprFra(pObjOld); pTemp; pTemp = Fra_ObjReprFra(pTemp) )
+ if ( pTemp == pObjNew )
+ break;
+ if ( pTemp == NULL )
+ {
+ Fra_ObjSetReprFra( pObjNew, Fra_ObjReprFra(pObjOld) );
+ Fra_ObjSetReprFra( pObjOld, pObjNew );
+ assert( pObjOld != Fra_ObjReprFra(pObjOld) );
+ assert( pObjNew != Fra_ObjReprFra(pObjNew) );
+ p->nChoices++;
+
+ assert( pObjOld->Id < pObjNew->Id );
+ }
+ else
+ p->nChoicesFake++;
+ }
+ return Aig_NotCond( pObjOldReprFraig, pObjOld->fPhase ^ pObjOldRepr->fPhase );
+ }
+ if ( RetValue == -1 ) // failed
+ {
+ static int Counter = 0;
+ char FileName[20];
+ Aig_Man_t * pTemp;
+ Aig_Obj_t * pObj;
+ int i;
+
+ Aig_Obj_t * ppNodes[2] = { Aig_Regular(pObjOldReprFraig), Aig_Regular(pObjFraig) };
+// Vec_Ptr_t * vNodes;
+
+ if ( !p->pPars->fSpeculate )
+ return pObjFraig;
+ // substitute the node
+// pObjOld->fMarkB = 1;
+ p->nSpeculs++;
+
+ pTemp = Aig_ManExtractMiter( p->pManFraig, ppNodes, 2 );
+ sprintf( FileName, "aig\\%03d.blif", ++Counter );
+ Aig_ManDumpBlif( pTemp, FileName );
+ printf( "Speculation cone with %d nodes was written into file \"%s\".\n", Aig_ManNodeNum(pTemp), FileName );
+ Aig_ManStop( pTemp );
+
+ Aig_ManForEachObj( p->pManFraig, pObj, i )
+ pObj->pData = p;
+
+// vNodes = Aig_ManDfsNodes( p->pManFraig, ppNodes, 2 );
+// printf( "Cone=%d ", Vec_PtrSize(vNodes) );
+// Vec_PtrFree( vNodes );
+
+ return Aig_NotCond( pObjOldReprFraig, pObjOld->fPhase ^ pObjOldRepr->fPhase );
+ }
+// printf( "Disproved %d and %d.\n", pObjOldRepr->Id, pObjOld->Id );
+ // simulate the counter-example and return the Fraig node
+// printf( "Representaive before = %d.\n", Fra_ObjRepr(pObjOld)? Fra_ObjRepr(pObjOld)->Id : -1 );
+ Fra_Resimulate( p );
+// printf( "Representaive after = %d.\n", Fra_ObjRepr(pObjOld)? Fra_ObjRepr(pObjOld)->Id : -1 );
+ assert( Fra_ObjRepr(pObjOld) != pObjOldRepr );
+ return pObjFraig;
+}
+
+/**Function*************************************************************
+
+ Synopsis [Performs fraiging for the internal nodes.]
+
+ Description []
+
+ SideEffects []
+
+ SeeAlso []
+
+***********************************************************************/
+void Fra_Sweep( Fra_Man_t * p )
+{
+ ProgressBar * pProgress;
+ Aig_Obj_t * pObj, * pObjNew;
+ int i, k = 0;
+p->nClassesZero = Vec_PtrSize(p->vClasses1);
+p->nClassesBeg = Vec_PtrSize(p->vClasses) + (int)(Vec_PtrSize(p->vClasses1) > 0);
+ // duplicate internal nodes
+ pProgress = Extra_ProgressBarStart( stdout, Aig_ManObjIdMax(p->pManAig) );
+ Aig_ManForEachNode( p->pManAig, pObj, i )
+ {
+ Extra_ProgressBarUpdate( pProgress, i, NULL );
+ // default to simple strashing if simulation detected a counter-example for a PO
+ if ( p->pManFraig->pData )
+ pObjNew = Aig_And( p->pManFraig, Fra_ObjChild0Fra(pObj), Fra_ObjChild1Fra(pObj) );
+ else
+ pObjNew = Fra_And( p, pObj ); // pObjNew can be complemented
+ Fra_ObjSetFraig( pObj, pObjNew );
+ assert( Fra_ObjFraig(pObj) != NULL );
+ }
+ Extra_ProgressBarStop( pProgress );
+p->nClassesEnd = Vec_PtrSize(p->vClasses) + (int)(Vec_PtrSize(p->vClasses1) > 0);
+ // try to prove the outputs of the miter
+ p->nNodesMiter = Aig_ManNodeNum(p->pManFraig);
+// Fra_MiterStatus( p->pManFraig );
+// if ( p->pPars->fProve && p->pManFraig->pData == NULL )
+// Fra_MiterProve( p );
+ // add the POs
+ Aig_ManForEachPo( p->pManAig, pObj, i )
+ Aig_ObjCreatePo( p->pManFraig, Fra_ObjChild0Fra(pObj) );
+ // postprocess
+ Aig_ManCleanMarkB( p->pManFraig );
+ if ( p->pPars->fChoicing )
+ {
+ // transfer the representative info
+ p->pManFraig->pReprs = p->pMemReprFra;
+ p->pMemReprFra = NULL;
+// printf( "The number of choices = %d. Fake choices = %d.\n", p->nChoices, p->nChoicesFake );
+ }
+ else
+ {
+ // remove dangling nodes
+ Aig_ManCleanup( p->pManFraig );
+ }
+}
+
+/**Function*************************************************************
+
Synopsis [Performs fraiging of the AIG.]
Description []
@@ -57,6 +228,30 @@ p->timeTotal = clock() - clk;
return pManAigNew;
}
+/**Function*************************************************************
+
+ Synopsis [Performs choicing of the AIG.]
+
+ Description []
+
+ SideEffects []
+
+ SeeAlso []
+
+***********************************************************************/
+Aig_Man_t * Fra_Choice( Aig_Man_t * pManAig )
+{
+ Fra_Par_t Pars, * pPars = &Pars;
+ Fra_ParamsDefault( pPars );
+ pPars->nBTLimitNode = 1000;
+ pPars->fVerbose = 0;
+ pPars->fProve = 0;
+ pPars->fDoSparse = 1;
+ pPars->fSpeculate = 0;
+ pPars->fChoicing = 1;
+ return Fra_Perform( pManAig, pPars );
+}
+
////////////////////////////////////////////////////////////////////////
/// END OF FILE ///
////////////////////////////////////////////////////////////////////////
diff --git a/src/aig/fra/fraDfs.c b/src/aig/fra/fraDfs.c
new file mode 100644
index 00000000..cd0985e0
--- /dev/null
+++ b/src/aig/fra/fraDfs.c
@@ -0,0 +1,87 @@
+/**CFile****************************************************************
+
+ FileName [fraDfs.c]
+
+ SystemName [ABC: Logic synthesis and verification system.]
+
+ PackageName [Fraig FRAIG package.]
+
+ Synopsis []
+
+ Author [Alan Mishchenko]
+
+ Affiliation [UC Berkeley]
+
+ Date [Ver. 1.0. Started - June 30, 2007.]
+
+ Revision [$Id: fraDfs.c,v 1.00 2007/06/30 00:00:00 alanmi Exp $]
+
+***********************************************************************/
+
+#include "fra.h"
+
+////////////////////////////////////////////////////////////////////////
+/// DECLARATIONS ///
+////////////////////////////////////////////////////////////////////////
+
+////////////////////////////////////////////////////////////////////////
+/// FUNCTION DEFINITIONS ///
+////////////////////////////////////////////////////////////////////////
+
+/**Function*************************************************************
+
+ Synopsis [Returns 1 if pOld is in the TFI of pNew.]
+
+ Description []
+
+ SideEffects []
+
+ SeeAlso []
+
+***********************************************************************/
+int Fra_CheckTfi_rec( Fra_Man_t * p, Aig_Obj_t * pNode, Aig_Obj_t * pOld )
+{
+ // check the trivial cases
+ if ( pNode == NULL )
+ return 0;
+// if ( pNode->Id < pOld->Id ) // cannot use because of choicesof pNode
+// return 0;
+ if ( pNode == pOld )
+ return 1;
+ // skip the visited node
+ if ( Aig_ObjIsTravIdCurrent(p->pManFraig, pNode) )
+ return 0;
+ Aig_ObjSetTravIdCurrent(p->pManFraig, pNode);
+ // check the children
+ if ( Fra_CheckTfi_rec( p, Aig_ObjFanin0(pNode), pOld ) )
+ return 1;
+ if ( Fra_CheckTfi_rec( p, Aig_ObjFanin1(pNode), pOld ) )
+ return 1;
+ // check equivalent nodes
+ return Fra_CheckTfi_rec( p, Fra_ObjReprFra(pNode), pOld );
+}
+
+/**Function*************************************************************
+
+ Synopsis [Returns 1 if pOld is in the TFI of pNew.]
+
+ Description []
+
+ SideEffects []
+
+ SeeAlso []
+
+***********************************************************************/
+int Fra_CheckTfi( Fra_Man_t * p, Aig_Obj_t * pNew, Aig_Obj_t * pOld )
+{
+ assert( !Aig_IsComplement(pNew) );
+ assert( !Aig_IsComplement(pOld) );
+ Aig_ManIncrementTravId( p->pManFraig );
+ return Fra_CheckTfi_rec( p, pNew, pOld );
+}
+
+////////////////////////////////////////////////////////////////////////
+/// END OF FILE ///
+////////////////////////////////////////////////////////////////////////
+
+
diff --git a/src/aig/fra/fraMan.c b/src/aig/fra/fraMan.c
index 78246a8c..0e583d6c 100644
--- a/src/aig/fra/fraMan.c
+++ b/src/aig/fra/fraMan.c
@@ -97,6 +97,8 @@ Fra_Man_t * Fra_ManStart( Aig_Man_t * pManAig, Fra_Par_t * pPars )
memset( p->pMemFraig, 0, p->nSizeAlloc * sizeof(Aig_Obj_t *) );
p->pMemRepr = ALLOC( Aig_Obj_t *, p->nSizeAlloc );
memset( p->pMemRepr, 0, p->nSizeAlloc * sizeof(Aig_Obj_t *) );
+ p->pMemReprFra = ALLOC( Aig_Obj_t *, p->nSizeAlloc );
+ memset( p->pMemReprFra, 0, p->nSizeAlloc * sizeof(Aig_Obj_t *) );
p->pMemFanins = ALLOC( Vec_Ptr_t *, p->nSizeAlloc );
memset( p->pMemFanins, 0, p->nSizeAlloc * sizeof(Vec_Ptr_t *) );
p->pMemSatNums = ALLOC( int, p->nSizeAlloc );
@@ -166,6 +168,7 @@ void Fra_ManStop( Fra_Man_t * p )
FREE( p->pMemSatNums );
FREE( p->pMemFanins );
FREE( p->pMemRepr );
+ FREE( p->pMemReprFra );
FREE( p->pMemFraig );
FREE( p->pMemClasses );
FREE( p->pPatScores );
diff --git a/src/aig/fra/fraSat.c b/src/aig/fra/fraSat.c
index 66b1ba5a..8ab10c40 100644
--- a/src/aig/fra/fraSat.c
+++ b/src/aig/fra/fraSat.c
@@ -54,8 +54,7 @@ int Fra_NodesAreEquiv( Fra_Man_t * p, Aig_Obj_t * pOld, Aig_Obj_t * pNew )
// if the backtrack limit is small, simply skip this node
// if the backtrack limit is > 10, take the quare root of the limit
nBTLimit = p->pPars->nBTLimitNode;
-/*
- if ( nBTLimit > 0 && (pOld->fFailTfo || pNew->fFailTfo) )
+ if ( !p->pPars->fSpeculate && (nBTLimit > 0 && (pOld->fMarkB || pNew->fMarkB)) )
{
p->nSatFails++;
// fail immediately
@@ -64,7 +63,7 @@ int Fra_NodesAreEquiv( Fra_Man_t * p, Aig_Obj_t * pOld, Aig_Obj_t * pNew )
return -1;
nBTLimit = (int)pow(nBTLimit, 0.7);
}
-*/
+
p->nSatCalls++;
// make sure the solver is allocated and has enough variables
@@ -112,9 +111,9 @@ p->timeSatSat += clock() - clk;
{
p->timeSatFail += clock() - clk;
// mark the node as the failed node
-// if ( pOld != p->pManFraig->pConst1 )
-// pOld->fFailTfo = 1;
-// pNew->fFailTfo = 1;
+ if ( pOld != p->pManFraig->pConst1 )
+ pOld->fMarkB = 1;
+ pNew->fMarkB = 1;
p->nSatFailsReal++;
return -1;
}
@@ -155,8 +154,8 @@ p->timeSatSat += clock() - clk;
{
p->timeSatFail += clock() - clk;
// mark the node as the failed node
-// pOld->fFailTfo = 1;
-// pNew->fFailTfo = 1;
+ pOld->fMarkB = 1;
+ pNew->fMarkB = 1;
p->nSatFailsReal++;
return -1;
}
@@ -240,7 +239,7 @@ p->timeSatSat += clock() - clk;
{
p->timeSatFail += clock() - clk;
// mark the node as the failed node
-// pNew->fFailTfo = 1;
+ pNew->fMarkB = 1;
p->nSatFailsReal++;
return -1;
}
diff --git a/src/aig/fra/module.make b/src/aig/fra/module.make
index 934fbdac..df690700 100644
--- a/src/aig/fra/module.make
+++ b/src/aig/fra/module.make
@@ -1,7 +1,7 @@
-SRC += src/aig/fra/fraAnd.c \
- src/aig/fra/fraClass.c \
+SRC += src/aig/fra/fraClass.c \
src/aig/fra/fraCnf.c \
src/aig/fra/fraCore.c \
+ src/aig/fra/fraDfs.c \
src/aig/fra/fraMan.c \
src/aig/fra/fraSat.c \
src/aig/fra/fraSim.c
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-19 20:22:14 +0000