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Added command 'cexcut' and 'cexmerge'.

This commit is contained in:
Alan Mishchenko 2012-11-14 18:20:35 -08:00
parent 9d5d804610
commit be29f37baa
5 changed files with 275 additions and 40 deletions
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6
src/aig/gia/giaDup.c
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@ -1234,8 +1234,8 @@ Gia_Man_t * Gia_ManDupWithNewPo( Gia_Man_t * p1, Gia_Man_t * p2 )
assert( Gia_ManRegNum(p2) == 0 ); assert( Gia_ManRegNum(p2) == 0 );
// there is only one PO in p2 // there is only one PO in p2
assert( Gia_ManPoNum(p2) == 1 ); assert( Gia_ManPoNum(p2) == 1 );
// flop count of p1 is equal to input count of p2 // input count of p2 is equal to flop count of p1
assert( Gia_ManRegNum(p1) == Gia_ManPiNum(p2) ); assert( Gia_ManPiNum(p2) == Gia_ManRegNum(p1) );
// start new AIG // start new AIG
pNew = Gia_ManStart( Gia_ManObjNum(p1)+Gia_ManObjNum(p2) ); pNew = Gia_ManStart( Gia_ManObjNum(p1)+Gia_ManObjNum(p2) );
@ -1261,7 +1261,7 @@ Gia_Man_t * Gia_ManDupWithNewPo( Gia_Man_t * p1, Gia_Man_t * p2 )
Gia_ManForEachRi( p1, pObj, i ) Gia_ManForEachRi( p1, pObj, i )
Gia_ManAppendCo( pNew, Gia_ObjFanin0Copy(pObj) ); Gia_ManAppendCo( pNew, Gia_ObjFanin0Copy(pObj) );
Gia_ManHashStop( pNew ); Gia_ManHashStop( pNew );
// Gia_ManPrintStats( pGiaNew, 0 ); Gia_ManSetRegNum( pNew, Gia_ManRegNum(p1) );
pNew = Gia_ManCleanup( pTemp = pNew ); pNew = Gia_ManCleanup( pTemp = pNew );
Gia_ManStop( pTemp ); Gia_ManStop( pTemp );
return pNew; return pNew;

218
src/base/abci/abc.c
View File

@ -296,6 +296,8 @@ static int Abc_CommandPdr ( Abc_Frame_t * pAbc, int argc, cha
static int Abc_CommandReconcile ( Abc_Frame_t * pAbc, int argc, char ** argv ); static int Abc_CommandReconcile ( Abc_Frame_t * pAbc, int argc, char ** argv );
static int Abc_CommandCexSave ( Abc_Frame_t * pAbc, int argc, char ** argv ); static int Abc_CommandCexSave ( Abc_Frame_t * pAbc, int argc, char ** argv );
static int Abc_CommandCexLoad ( Abc_Frame_t * pAbc, int argc, char ** argv ); static int Abc_CommandCexLoad ( Abc_Frame_t * pAbc, int argc, char ** argv );
static int Abc_CommandCexCut ( Abc_Frame_t * pAbc, int argc, char ** argv );
static int Abc_CommandCexMerge ( Abc_Frame_t * pAbc, int argc, char ** argv );
//static int Abc_CommandCexMin ( Abc_Frame_t * pAbc, int argc, char ** argv ); //static int Abc_CommandCexMin ( Abc_Frame_t * pAbc, int argc, char ** argv );
static int Abc_CommandDualRail ( Abc_Frame_t * pAbc, int argc, char ** argv ); static int Abc_CommandDualRail ( Abc_Frame_t * pAbc, int argc, char ** argv );
static int Abc_CommandBlockPo ( Abc_Frame_t * pAbc, int argc, char ** argv ); static int Abc_CommandBlockPo ( Abc_Frame_t * pAbc, int argc, char ** argv );
@ -364,8 +366,8 @@ static int Abc_CommandAbc9ReachN ( Abc_Frame_t * pAbc, int argc, cha
static int Abc_CommandAbc9ReachY ( Abc_Frame_t * pAbc, int argc, char ** argv ); static int Abc_CommandAbc9ReachY ( Abc_Frame_t * pAbc, int argc, char ** argv );
static int Abc_CommandAbc9Undo ( Abc_Frame_t * pAbc, int argc, char ** argv ); static int Abc_CommandAbc9Undo ( Abc_Frame_t * pAbc, int argc, char ** argv );
static int Abc_CommandAbc9Iso ( Abc_Frame_t * pAbc, int argc, char ** argv ); static int Abc_CommandAbc9Iso ( Abc_Frame_t * pAbc, int argc, char ** argv );
static int Abc_CommandAbc9CexCut ( Abc_Frame_t * pAbc, int argc, char ** argv ); //static int Abc_CommandAbc9CexCut ( Abc_Frame_t * pAbc, int argc, char ** argv );
static int Abc_CommandAbc9CexMerge ( Abc_Frame_t * pAbc, int argc, char ** argv ); //static int Abc_CommandAbc9CexMerge ( Abc_Frame_t * pAbc, int argc, char ** argv );
//static int Abc_CommandAbc9CexMin ( Abc_Frame_t * pAbc, int argc, char ** argv ); //static int Abc_CommandAbc9CexMin ( Abc_Frame_t * pAbc, int argc, char ** argv );
static int Abc_CommandAbc9AbsDerive ( Abc_Frame_t * pAbc, int argc, char ** argv ); static int Abc_CommandAbc9AbsDerive ( Abc_Frame_t * pAbc, int argc, char ** argv );
@ -755,6 +757,8 @@ void Abc_Init( Abc_Frame_t * pAbc )
Cmd_CommandAdd( pAbc, "Verification", "reconcile", Abc_CommandReconcile, 1 ); Cmd_CommandAdd( pAbc, "Verification", "reconcile", Abc_CommandReconcile, 1 );
Cmd_CommandAdd( pAbc, "Verification", "cexsave", Abc_CommandCexSave, 0 ); Cmd_CommandAdd( pAbc, "Verification", "cexsave", Abc_CommandCexSave, 0 );
Cmd_CommandAdd( pAbc, "Verification", "cexload", Abc_CommandCexLoad, 0 ); Cmd_CommandAdd( pAbc, "Verification", "cexload", Abc_CommandCexLoad, 0 );
Cmd_CommandAdd( pAbc, "Verification", "cexcut", Abc_CommandCexCut, 0 );
Cmd_CommandAdd( pAbc, "Verification", "cexmerge", Abc_CommandCexMerge, 0 );
// Cmd_CommandAdd( pAbc, "Verification", "cexmin", Abc_CommandCexMin, 0 ); // Cmd_CommandAdd( pAbc, "Verification", "cexmin", Abc_CommandCexMin, 0 );
Cmd_CommandAdd( pAbc, "Verification", "dualrail", Abc_CommandDualRail, 1 ); Cmd_CommandAdd( pAbc, "Verification", "dualrail", Abc_CommandDualRail, 1 );
Cmd_CommandAdd( pAbc, "Verification", "blockpo", Abc_CommandBlockPo, 1 ); Cmd_CommandAdd( pAbc, "Verification", "blockpo", Abc_CommandBlockPo, 1 );
@ -820,8 +824,8 @@ void Abc_Init( Abc_Frame_t * pAbc )
Cmd_CommandAdd( pAbc, "ABC9", "&reachy", Abc_CommandAbc9ReachY, 0 ); Cmd_CommandAdd( pAbc, "ABC9", "&reachy", Abc_CommandAbc9ReachY, 0 );
Cmd_CommandAdd( pAbc, "ABC9", "&undo", Abc_CommandAbc9Undo, 0 ); Cmd_CommandAdd( pAbc, "ABC9", "&undo", Abc_CommandAbc9Undo, 0 );
Cmd_CommandAdd( pAbc, "ABC9", "&iso", Abc_CommandAbc9Iso, 0 ); Cmd_CommandAdd( pAbc, "ABC9", "&iso", Abc_CommandAbc9Iso, 0 );
Cmd_CommandAdd( pAbc, "ABC9", "&cexcut", Abc_CommandAbc9CexCut, 0 ); // Cmd_CommandAdd( pAbc, "ABC9", "&cexcut", Abc_CommandAbc9CexCut, 0 );
Cmd_CommandAdd( pAbc, "ABC9", "&cexmerge", Abc_CommandAbc9CexMerge, 0 ); // Cmd_CommandAdd( pAbc, "ABC9", "&cexmerge", Abc_CommandAbc9CexMerge, 0 );
// Cmd_CommandAdd( pAbc, "ABC9", "&cexmin", Abc_CommandAbc9CexMin, 0 ); // Cmd_CommandAdd( pAbc, "ABC9", "&cexmin", Abc_CommandAbc9CexMin, 0 );
Cmd_CommandAdd( pAbc, "Abstraction", "&abs_derive", Abc_CommandAbc9AbsDerive, 0 ); Cmd_CommandAdd( pAbc, "Abstraction", "&abs_derive", Abc_CommandAbc9AbsDerive, 0 );
@ -22516,7 +22520,7 @@ int Abc_CommandCexSave( Abc_Frame_t * pAbc, int argc, char ** argv )
} }
if ( pAbc->pCex == NULL ) if ( pAbc->pCex == NULL )
{ {
Abc_Print( -1, "Empty network.\n" ); Abc_Print( -1, "Current CEX is not available..\n" );
return 1; return 1;
} }
ABC_FREE( pAbc->pCex2 ); ABC_FREE( pAbc->pCex2 );
@ -22555,9 +22559,9 @@ int Abc_CommandCexLoad( Abc_Frame_t * pAbc, int argc, char ** argv )
goto usage; goto usage;
} }
} }
if ( pAbc->pCex == NULL ) if ( pAbc->pCex2 == NULL )
{ {
Abc_Print( -1, "Empty network.\n" ); Abc_Print( -1, "Saved CEX is not available.\n" );
return 1; return 1;
} }
ABC_FREE( pAbc->pCex ); ABC_FREE( pAbc->pCex );
@ -22572,6 +22576,200 @@ usage:
} }
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
int Abc_CommandCexCut( Abc_Frame_t * pAbc, int argc, char ** argv )
{
int c;
int iFrStart = 0;
int iFrStop = ABC_INFINITY;
int fVerbose = 0;
Extra_UtilGetoptReset();
while ( ( c = Extra_UtilGetopt( argc, argv, "FGvh" ) ) != EOF )
{
switch ( c )
{
case 'F':
if ( globalUtilOptind >= argc )
{
Abc_Print( -1, "Command line switch \"-F\" should be followed by an integer.\n" );
goto usage;
}
iFrStart = atoi(argv[globalUtilOptind]);
globalUtilOptind++;
if ( iFrStart < 0 )
goto usage;
break;
case 'G':
if ( globalUtilOptind >= argc )
{
Abc_Print( -1, "Command line switch \"-G\" should be followed by an integer.\n" );
goto usage;
}
iFrStop = atoi(argv[globalUtilOptind]);
globalUtilOptind++;
if ( iFrStop < 0 )
goto usage;
break;
case 'v':
fVerbose ^= 1;
break;
case 'h':
goto usage;
default:
Abc_Print( -2, "Unknown switch.\n");
goto usage;
}
}
if ( pAbc->pCex == NULL )
{
Abc_Print( 1, "There is no current cex.\n");
return 0;
}
if ( pAbc->pNtkCur == NULL )
{
Abc_Print( 1, "There is no AIG in the &-space.\n");
return 0;
}
if ( !Abc_NtkIsStrash(pAbc->pNtkCur) )
{
Abc_Print( 1, "Current network is not an AIG.\n");
return 0;
}
if ( iFrStop == ABC_INFINITY )
iFrStop = pAbc->pCex->iFrame;
{
Abc_Ntk_t * pNtkNew;
Aig_Man_t * pAig = Abc_NtkToDar( pAbc->pNtkCur, 0, 1 );
Aig_Man_t * pAigNew = Bmc_AigTargetStates( pAig, pAbc->pCex, iFrStart, iFrStop, fVerbose );
Aig_ManStop( pAig );
if ( pAigNew == NULL )
{
Abc_Print( 1, "Command has failed.\n");
return 0;
}
pNtkNew = Abc_NtkFromAigPhase( pAigNew );
pNtkNew->pName = Extra_UtilStrsav( pAbc->pNtkCur->pName );
Aig_ManStop( pAigNew );
// update the network
Abc_FrameReplaceCurrentNetwork( pAbc, pNtkNew );
}
return 0;
usage:
Abc_Print( -2, "usage: cexcut [-FG num] [-vh]\n" );
Abc_Print( -2, "\t creates logic for bad states using the current CEX\n" );
Abc_Print( -2, "\t-F num : 0-based number of the starting frame [default = %d]\n", iFrStart );
Abc_Print( -2, "\t-G num : 0-based number of the ending frame [default = %d]\n", iFrStop );
Abc_Print( -2, "\t-v : toggle printing verbose information [default = %s]\n", fVerbose? "yes": "no" );
Abc_Print( -2, "\t-h : print the command usage\n");
return 1;
}
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
int Abc_CommandCexMerge( Abc_Frame_t * pAbc, int argc, char ** argv )
{
Abc_Cex_t * pCexNew;
int c;
int iFrStart = 0;
int iFrStop = ABC_INFINITY;
int fVerbose = 0;
Extra_UtilGetoptReset();
while ( ( c = Extra_UtilGetopt( argc, argv, "FGvh" ) ) != EOF )
{
switch ( c )
{
case 'F':
if ( globalUtilOptind >= argc )
{
Abc_Print( -1, "Command line switch \"-F\" should be followed by an integer.\n" );
goto usage;
}
iFrStart = atoi(argv[globalUtilOptind]);
globalUtilOptind++;
if ( iFrStart < 0 )
goto usage;
break;
case 'G':
if ( globalUtilOptind >= argc )
{
Abc_Print( -1, "Command line switch \"-G\" should be followed by an integer.\n" );
goto usage;
}
iFrStop = atoi(argv[globalUtilOptind]);
globalUtilOptind++;
if ( iFrStop < 0 )
goto usage;
break;
case 'v':
fVerbose ^= 1;
break;
case 'h':
goto usage;
default:
Abc_Print( -2, "Unknown switch.\n");
goto usage;
}
}
if ( pAbc->pCex == NULL )
{
Abc_Print( 1, "There is no current cex.\n");
return 0;
}
if ( pAbc->pCex2 == NULL )
{
Abc_Print( 1, "There is no saved cex.\n");
return 0;
}
if ( iFrStop - iFrStart < pAbc->pCex->iFrame )
{
Abc_Print( 1, "Current CEX does not allow to shorten the saved CEX.\n");
return 0;
}
pCexNew = Abc_CexMerge( pAbc->pCex2, pAbc->pCex, iFrStart, iFrStop );
if ( pCexNew == NULL )
{
Abc_Print( 1, "Merging CEXes has failed.\n");
return 0;
}
// replace the saved CEX
ABC_FREE( pAbc->pCex2 );
pAbc->pCex2 = pCexNew;
return 0;
usage:
Abc_Print( -2, "usage: cexmerge [-FG num] [-vh]\n" );
Abc_Print( -2, "\t merges the current CEX into the saved one\n" );
Abc_Print( -2, "\t and sets the resulting CEX as the saved one\n" );
Abc_Print( -2, "\t-F num : 0-based number of the starting frame [default = %d]\n", iFrStart );
Abc_Print( -2, "\t-G num : 0-based number of the ending frame [default = %d]\n", iFrStop );
Abc_Print( -2, "\t-v : toggle printing verbose information [default = %s]\n", fVerbose? "yes": "no" );
Abc_Print( -2, "\t-h : print the command usage\n");
return 1;
}
/**Function************************************************************* /**Function*************************************************************
Synopsis [] Synopsis []
@ -28680,10 +28878,10 @@ int Abc_CommandAbc9CexCut( Abc_Frame_t * pAbc, int argc, char ** argv )
usage: usage:
Abc_Print( -2, "usage: &cexcut [-FG num] [-vh]\n" ); Abc_Print( -2, "usage: &cexcut [-FG num] [-vh]\n" );
Abc_Print( -2, "\t extract logic representation of bad states\n" ); Abc_Print( -2, "\t creates logic for bad states using the current CEX\n" );
Abc_Print( -2, "\t-F num : 0-based number of the starting frame [default = %d]\n", iFrStart ); Abc_Print( -2, "\t-F num : 0-based number of the starting frame [default = %d]\n", iFrStart );
Abc_Print( -2, "\t-G num : 0-based number of the ending frame [default = %d]\n", iFrStop ); Abc_Print( -2, "\t-G num : 0-based number of the ending frame [default = %d]\n", iFrStop );
Abc_Print( -2, "\t-v : toggle printing verbose information [default = %s]\n", fVerbose? "yes": "no" ); Abc_Print( -2, "\t-v : toggle printing verbose information [default = %s]\n", fVerbose? "yes": "no" );
Abc_Print( -2, "\t-h : print the command usage\n"); Abc_Print( -2, "\t-h : print the command usage\n");
return 1; return 1;
} }
@ -28754,7 +28952,7 @@ int Abc_CommandAbc9CexMerge( Abc_Frame_t * pAbc, int argc, char ** argv )
Abc_Print( 1, "There is no saved cex.\n"); Abc_Print( 1, "There is no saved cex.\n");
return 0; return 0;
} }
if ( iFrStop - iFrStart > pAbc->pCex->iFrame ) if ( iFrStop - iFrStart < pAbc->pCex->iFrame )
{ {
Abc_Print( 1, "Current CEX does not allow to shorten the saved CEX.\n"); Abc_Print( 1, "Current CEX does not allow to shorten the saved CEX.\n");
return 0; return 0;

23
src/misc/util/utilCex.c
View File

@ -195,14 +195,14 @@ Abc_Cex_t * Abc_CexMerge( Abc_Cex_t * pCex, Abc_Cex_t * pPart, int iFrBeg, int i
{ printf( "Starting frame is more than the last frame of CEX (%d).\n", pCex->iFrame ); return NULL; } { printf( "Starting frame is more than the last frame of CEX (%d).\n", pCex->iFrame ); return NULL; }
if ( iFrEnd > pCex->iFrame ) if ( iFrEnd > pCex->iFrame )
{ printf( "Stopping frame is more than the last frame of CEX (%d).\n", pCex->iFrame ); return NULL; } { printf( "Stopping frame is more than the last frame of CEX (%d).\n", pCex->iFrame ); return NULL; }
if ( iFrBeg >= iFrEnd ) if ( iFrBeg > iFrEnd )
{ printf( "Starting frame (%d) should be less than stopping frame (%d).\n", iFrBeg, iFrEnd ); return NULL; } { printf( "Starting frame (%d) should be less than stopping frame (%d).\n", iFrBeg, iFrEnd ); return NULL; }
assert( iFrBeg >= 0 && iFrBeg <= pCex->iFrame ); assert( iFrBeg >= 0 && iFrBeg <= pCex->iFrame );
assert( iFrEnd >= 0 && iFrEnd <= pCex->iFrame ); assert( iFrEnd >= 0 && iFrEnd <= pCex->iFrame );
assert( iFrBeg < iFrEnd ); assert( iFrBeg <= iFrEnd );
assert( pCex->nPis == pPart->nPis ); assert( pCex->nPis == pPart->nPis );
assert( iFrEnd - iFrBeg > pPart->iFrame ); assert( iFrEnd - iFrBeg >= pPart->iFrame );
nFramesGain = (iFrEnd - iFrBeg) - pPart->iFrame; nFramesGain = (iFrEnd - iFrBeg) - pPart->iFrame;
pNew = Abc_CexAlloc( pCex->nRegs, pCex->nPis, pCex->iFrame + 1 - nFramesGain ); pNew = Abc_CexAlloc( pCex->nRegs, pCex->nPis, pCex->iFrame + 1 - nFramesGain );
@ -211,20 +211,21 @@ Abc_Cex_t * Abc_CexMerge( Abc_Cex_t * pCex, Abc_Cex_t * pPart, int iFrBeg, int i
for ( iBit = 0; iBit < pCex->nRegs; iBit++ ) for ( iBit = 0; iBit < pCex->nRegs; iBit++ )
if ( Abc_InfoHasBit(pCex->pData, iBit) ) if ( Abc_InfoHasBit(pCex->pData, iBit) )
Abc_InfoSetBit( pNew->pData, iBit++ ); Abc_InfoSetBit( pNew->pData, iBit );
for ( f = 0; f < iFrBeg; f++ ) for ( f = 0; f < iFrBeg; f++ )
for ( i = 0; i < pCex->nPis; i++ ) for ( i = 0; i < pCex->nPis; i++, iBit++ )
if ( Abc_InfoHasBit(pCex->pData, pCex->nRegs + pCex->nPis * f + i) ) if ( Abc_InfoHasBit(pCex->pData, pCex->nRegs + pCex->nPis * f + i) )
Abc_InfoSetBit( pNew->pData, iBit++ ); Abc_InfoSetBit( pNew->pData, iBit );
for ( f = 0; f < pPart->iFrame; f++ ) for ( f = 0; f < pPart->iFrame; f++ )
for ( i = 0; i < pCex->nPis; i++ ) for ( i = 0; i < pCex->nPis; i++, iBit++ )
if ( Abc_InfoHasBit(pPart->pData, pPart->nRegs + pCex->nPis * f + i) ) if ( Abc_InfoHasBit(pPart->pData, pPart->nRegs + pCex->nPis * f + i) )
Abc_InfoSetBit( pNew->pData, iBit++ ); Abc_InfoSetBit( pNew->pData, iBit );
for ( f = iFrEnd; f <= pCex->iFrame; f++ ) for ( f = iFrEnd; f <= pCex->iFrame; f++ )
for ( i = 0; i < pCex->nPis; i++ ) for ( i = 0; i < pCex->nPis; i++, iBit++ )
if ( Abc_InfoHasBit(pPart->pData, pPart->nRegs + pCex->nPis * f + i) ) if ( Abc_InfoHasBit(pCex->pData, pCex->nRegs + pCex->nPis * f + i) )
Abc_InfoSetBit( pNew->pData, iBit++ ); Abc_InfoSetBit( pNew->pData, iBit );
assert( iBit == pNew->nBits ); assert( iBit == pNew->nBits );
return pNew; return pNew;
} }

1
src/sat/bmc/bmc.h
View File

@ -76,6 +76,7 @@ extern void Saig_ParBmcSetDefaultParams( Saig_ParBmc_t * p );
extern int Saig_ManBmcScalable( Aig_Man_t * pAig, Saig_ParBmc_t * pPars ); extern int Saig_ManBmcScalable( Aig_Man_t * pAig, Saig_ParBmc_t * pPars );
/*=== bmcCexCut.c ==========================================================*/ /*=== bmcCexCut.c ==========================================================*/
extern Gia_Man_t * Bmc_GiaTargetStates( Gia_Man_t * p, Abc_Cex_t * pCex, int iFrBeg, int iFrEnd, int fVerbose ); extern Gia_Man_t * Bmc_GiaTargetStates( Gia_Man_t * p, Abc_Cex_t * pCex, int iFrBeg, int iFrEnd, int fVerbose );
extern Aig_Man_t * Bmc_AigTargetStates( Aig_Man_t * p, Abc_Cex_t * pCex, int iFrBeg, int iFrEnd, int fVerbose );
/*=== bmcCexMin.c ==========================================================*/ /*=== bmcCexMin.c ==========================================================*/
extern Abc_Cex_t * Saig_ManCexMinPerform( Aig_Man_t * pAig, Abc_Cex_t * pCex ); extern Abc_Cex_t * Saig_ManCexMinPerform( Aig_Man_t * pAig, Abc_Cex_t * pCex );

67
src/sat/bmc/bmcCexCut.c
View File

@ -6,7 +6,7 @@
PackageName [SAT-based bounded model checking.] PackageName [SAT-based bounded model checking.]
Synopsis [] Synopsis [Derives characterization of bad states.]
Author [Alan Mishchenko] Author [Alan Mishchenko]
@ -19,6 +19,7 @@
***********************************************************************/ ***********************************************************************/
#include "bmc.h" #include "bmc.h"
#include "aig/gia/giaAig.h"
ABC_NAMESPACE_IMPL_START ABC_NAMESPACE_IMPL_START
@ -47,7 +48,7 @@ Gia_Man_t * Bmc_GiaTargetStates( Gia_Man_t * p, Abc_Cex_t * pCex, int iFrBeg, in
Gia_Man_t * pNew, * pTemp; Gia_Man_t * pNew, * pTemp;
Gia_Obj_t * pObj, * pObjRo, * pObjRi; Gia_Obj_t * pObj, * pObjRo, * pObjRi;
Vec_Bit_t * vInitNew; Vec_Bit_t * vInitNew;
int i, k, iBit = 0; int i, k, iBit = 0, fCompl0, fCompl1;
if ( iFrBeg < 0 ) if ( iFrBeg < 0 )
{ printf( "Starting frame is less than 0.\n" ); return NULL; } { printf( "Starting frame is less than 0.\n" ); return NULL; }
@ -57,7 +58,7 @@ Gia_Man_t * Bmc_GiaTargetStates( Gia_Man_t * p, Abc_Cex_t * pCex, int iFrBeg, in
{ printf( "Starting frame is more than the last frame of CEX (%d).\n", pCex->iFrame ); return NULL; } { printf( "Starting frame is more than the last frame of CEX (%d).\n", pCex->iFrame ); return NULL; }
if ( iFrEnd > pCex->iFrame ) if ( iFrEnd > pCex->iFrame )
{ printf( "Stopping frame is more than the last frame of CEX (%d).\n", pCex->iFrame ); return NULL; } { printf( "Stopping frame is more than the last frame of CEX (%d).\n", pCex->iFrame ); return NULL; }
if ( iFrBeg >= iFrEnd ) if ( iFrBeg > iFrEnd )
{ printf( "Starting frame (%d) should be less than stopping frame (%d).\n", iFrBeg, iFrEnd ); return NULL; } { printf( "Starting frame (%d) should be less than stopping frame (%d).\n", iFrBeg, iFrEnd ); return NULL; }
assert( iFrBeg >= 0 && iFrBeg <= pCex->iFrame ); assert( iFrBeg >= 0 && iFrBeg <= pCex->iFrame );
assert( iFrEnd >= 0 && iFrEnd <= pCex->iFrame ); assert( iFrEnd >= 0 && iFrEnd <= pCex->iFrame );
@ -65,7 +66,7 @@ Gia_Man_t * Bmc_GiaTargetStates( Gia_Man_t * p, Abc_Cex_t * pCex, int iFrBeg, in
// skip trough the first iFrEnd frames // skip trough the first iFrEnd frames
Gia_ManCleanMark0(p); Gia_ManCleanMark0(p);
Gia_ManForEachRo( p, pObj, i ) Gia_ManForEachRo( p, pObj, k )
pObj->fMark0 = Abc_InfoHasBit(pCex->pData, iBit++); pObj->fMark0 = Abc_InfoHasBit(pCex->pData, iBit++);
vInitNew = Vec_BitStart( Gia_ManRegNum(p) ); vInitNew = Vec_BitStart( Gia_ManRegNum(p) );
for ( i = 0; i < iFrEnd; i++ ) for ( i = 0; i < iFrEnd; i++ )
@ -90,35 +91,39 @@ Gia_Man_t * Bmc_GiaTargetStates( Gia_Man_t * p, Abc_Cex_t * pCex, int iFrBeg, in
// create new AIG manager // create new AIG manager
pNew = Gia_ManStart( 10000 ); pNew = Gia_ManStart( 10000 );
pNew->pName = Abc_UtilStrsav( p->pName );
Gia_ManConst0(p)->Value = 1; Gia_ManConst0(p)->Value = 1;
Gia_ManForEachPi( p, pObj, k ) Gia_ManForEachPi( p, pObj, k )
pObj->Value = 1; pObj->Value = 1;
Gia_ManForEachRo( p, pObjRo, i ) Gia_ManForEachRo( p, pObjRo, k )
pObj->Value = Abc_LitNotCond( Gia_ManAppendCi(pNew), !pObjRo->fMark0 ); pObjRo->Value = Abc_LitNotCond( Gia_ManAppendCi(pNew), !pObjRo->fMark0 );
Gia_ManHashStart( p ); Gia_ManHashStart( pNew );
for ( i = iFrEnd; i <= pCex->iFrame; i++ ) for ( i = iFrEnd; i <= pCex->iFrame; i++ )
{ {
Gia_ManForEachPi( p, pObj, k ) Gia_ManForEachPi( p, pObj, k )
pObj->fMark0 = Abc_InfoHasBit(pCex->pData, iBit++); pObj->fMark0 = Abc_InfoHasBit(pCex->pData, iBit++);
Gia_ManForEachAnd( p, pObj, k ) Gia_ManForEachAnd( p, pObj, k )
{ {
pObj->fMark0 = (Gia_ObjFanin0(pObj)->fMark0 ^ Gia_ObjFaninC0(pObj)) & fCompl0 = Gia_ObjFanin0(pObj)->fMark0 ^ Gia_ObjFaninC0(pObj);
(Gia_ObjFanin1(pObj)->fMark0 ^ Gia_ObjFaninC1(pObj)); fCompl1 = Gia_ObjFanin1(pObj)->fMark0 ^ Gia_ObjFaninC1(pObj);
pObj->fMark0 = fCompl0 & fCompl1;
if ( pObj->fMark0 ) if ( pObj->fMark0 )
pObj->Value = Gia_ManHashAnd( p, Gia_ObjFanin0(pObj)->Value, Gia_ObjFanin1(pObj)->Value ); pObj->Value = Gia_ManHashAnd( pNew, Gia_ObjFanin0(pObj)->Value, Gia_ObjFanin1(pObj)->Value );
else if ( !Gia_ObjFanin0(pObj)->fMark0 && !Gia_ObjFanin1(pObj)->fMark0 ) else if ( !fCompl0 && !fCompl1 )
pObj->Value = Gia_ManHashOr( p, Gia_ObjFanin0(pObj)->Value, Gia_ObjFanin1(pObj)->Value ); pObj->Value = Gia_ManHashOr( pNew, Gia_ObjFanin0(pObj)->Value, Gia_ObjFanin1(pObj)->Value );
else if ( !Gia_ObjFanin0(pObj)->fMark0 ) else if ( !fCompl0 )
pObj->Value = Gia_ObjFanin0(pObj)->Value; pObj->Value = Gia_ObjFanin0(pObj)->Value;
else if ( !Gia_ObjFanin1(pObj)->fMark0 ) else if ( !fCompl1 )
pObj->Value = Gia_ObjFanin1(pObj)->Value; pObj->Value = Gia_ObjFanin1(pObj)->Value;
else assert( 0 ); else assert( 0 );
assert( pObj->Value > 0 );
} }
Gia_ManForEachCo( p, pObj, k ) Gia_ManForEachCo( p, pObj, k )
{ {
pObj->fMark0 = Gia_ObjFanin0(pObj)->fMark0 ^ Gia_ObjFaninC0(pObj); pObj->fMark0 = Gia_ObjFanin0(pObj)->fMark0 ^ Gia_ObjFaninC0(pObj);
pObj->Value = Gia_ObjFanin0(pObj)->Value; pObj->Value = Gia_ObjFanin0(pObj)->Value;
} assert( pObj->Value > 0 );
}
if ( i == pCex->iFrame ) if ( i == pCex->iFrame )
break; break;
Gia_ManForEachRiRo( p, pObjRi, pObjRo, k ) Gia_ManForEachRiRo( p, pObjRi, pObjRo, k )
@ -127,7 +132,7 @@ Gia_Man_t * Bmc_GiaTargetStates( Gia_Man_t * p, Abc_Cex_t * pCex, int iFrBeg, in
pObjRo->Value = pObjRi->Value; pObjRo->Value = pObjRi->Value;
} }
} }
Gia_ManHashStop( p ); Gia_ManHashStop( pNew );
assert( iBit == pCex->nBits ); assert( iBit == pCex->nBits );
// create PO // create PO
@ -143,10 +148,40 @@ Gia_Man_t * Bmc_GiaTargetStates( Gia_Man_t * p, Abc_Cex_t * pCex, int iFrBeg, in
// create new initial state // create new initial state
pNew = Gia_ManDupFlip( pTemp = pNew, Vec_BitArray(vInitNew) ); pNew = Gia_ManDupFlip( pTemp = pNew, Vec_BitArray(vInitNew) );
Gia_ManStop( pTemp ); Gia_ManStop( pTemp );
Vec_BitFree( vInitNew ); Vec_BitFree( vInitNew );
return pNew; return pNew;
} }
/**Function*************************************************************
Synopsis [Generate AIG for target bad states.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
Aig_Man_t * Bmc_AigTargetStates( Aig_Man_t * p, Abc_Cex_t * pCex, int iFrBeg, int iFrEnd, int fVerbose )
{
Aig_Man_t * pAig;
Gia_Man_t * pGia, * pRes;
pGia = Gia_ManFromAigSimple( p );
if ( !Gia_ManVerifyCex( pGia, pCex, 0 ) )
{
Abc_Print( 1, "Current CEX does not fail AIG \"%s\".\n", p->pName );
Gia_ManStop( pGia );
return NULL;
}
pRes = Bmc_GiaTargetStates( pGia, pCex, iFrBeg, iFrEnd, fVerbose );
pAig = Gia_ManToAigSimple( pRes );
Gia_ManStop( pGia );
Gia_ManStop( pRes );
return pAig;
}
//////////////////////////////////////////////////////////////////////// ////////////////////////////////////////////////////////////////////////
/// END OF FILE /// /// END OF FILE ///
//////////////////////////////////////////////////////////////////////// ////////////////////////////////////////////////////////////////////////