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Experiments with stuck-at fault testing.

This commit is contained in:
Alan Mishchenko 2014-03-09 12:11:49 -07:00
parent e5d552138a
commit cc6c8b2f2a
3 changed files with 128 additions and 20 deletions
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22
src/base/abci/abc.c
View File

@ -32620,10 +32620,10 @@ usage:
***********************************************************************/
int Abc_CommandAbc9FunFaTest( Abc_Frame_t * pAbc, int argc, char ** argv )
{
extern void Gia_ManFaultTest( Gia_Man_t * p, int nTimeOut, int fDump, int fVerbose );
int c, nTimeOut = 0, fDump = 0, fVerbose = 0;
extern void Gia_ManFaultTest( Gia_Man_t * p, int fStuckAt, int fComplVars, int nTimeOut, int fDump, int fVerbose );
int c, fStuckAt = 0, fComplVars = 0, nTimeOut = 0, fDump = 0, fVerbose = 0;
Extra_UtilGetoptReset();
while ( ( c = Extra_UtilGetopt( argc, argv, "Tdvh" ) ) != EOF )
while ( ( c = Extra_UtilGetopt( argc, argv, "Tscdvh" ) ) != EOF )
{
switch ( c )
{
@ -32638,6 +32638,12 @@ int Abc_CommandAbc9FunFaTest( Abc_Frame_t * pAbc, int argc, char ** argv )
if ( nTimeOut < 0 )
goto usage;
break;
case 's':
fStuckAt ^= 1;
break;
case 'c':
fComplVars ^= 1;
break;
case 'd':
fDump ^= 1;
break;
@ -32660,15 +32666,17 @@ int Abc_CommandAbc9FunFaTest( Abc_Frame_t * pAbc, int argc, char ** argv )
Abc_Print( -1, "Abc_CommandAbc9FunFaTest(): AIG is combinational.\n" );
return 0;
}
Gia_ManFaultTest( pAbc->pGia, nTimeOut, fDump, fVerbose );
Gia_ManFaultTest( pAbc->pGia, fStuckAt, fComplVars, nTimeOut, fDump, fVerbose );
return 0;
usage:
Abc_Print( -2, "usage: &funfatest [-T num] [-dvh]\n" );
Abc_Print( -2, "usage: &funfatest [-T num] [-scdvh]\n" );
Abc_Print( -2, "\t performs functional fault test generation\n" );
Abc_Print( -2, "\t-T num : approximate global runtime limit in seconds [default = %d]\n", nTimeOut );
Abc_Print( -2, "\t-d : toggles dumping test patterns into file \"tests.txt\" [default = %s]\n", fDump? "yes": "no" );
Abc_Print( -2, "\t-v : toggles printing verbose information [default = %s]\n", fVerbose? "yes": "no" );
Abc_Print( -2, "\t-s : toggles generating tests for stuck-at faults [default = %s]\n", fStuckAt? "yes": "no" );
Abc_Print( -2, "\t-c : toggles complementing control variables [default = %s]\n", fComplVars? "yes": "no" );
Abc_Print( -2, "\t-d : toggles dumping test patterns into file \"tests.txt\" [default = %s]\n", fDump? "yes": "no" );
Abc_Print( -2, "\t-v : toggles printing verbose information [default = %s]\n", fVerbose? "yes": "no" );
Abc_Print( -2, "\t-h : print the command usage\n");
return 1;
}

68
src/map/if/ifTune.c
View File

@ -27,6 +27,17 @@ ABC_NAMESPACE_IMPL_START
/// DECLARATIONS ///
////////////////////////////////////////////////////////////////////////
// network types
typedef enum {
IF_DSD_NONE = 0, // 0: unknown
IF_DSD_CONST0, // 1: constant
IF_DSD_VAR, // 2: variable
IF_DSD_AND, // 3: AND
IF_DSD_XOR, // 4: XOR
IF_DSD_MUX, // 5: MUX
IF_DSD_PRIME // 6: PRIME
} If_DsdType_t;
////////////////////////////////////////////////////////////////////////
/// FUNCTION DEFINITIONS ///
////////////////////////////////////////////////////////////////////////
@ -42,9 +53,9 @@ ABC_NAMESPACE_IMPL_START
SeeAlso []
***********************************************************************/
int If_ManStrCheck( char * pStr )
int If_ManStrCheck( char * pStr, int * pnVars, int * pnObjs )
{
int i, Marks[32] = {0}, MaxVar = 0, MaxDef = 0;
int i, Marks[32] = {0}, MaxVar = 0, MaxDef = 0, RetValue = 1;
for ( i = 0; pStr[i]; i++ )
{
if ( pStr[i] == '=' || pStr[i] == ';' ||
@ -62,16 +73,54 @@ int If_ManStrCheck( char * pStr )
continue;
}
printf( "String \"%s\" contains unrecognized symbol (%c).\n", pStr, pStr[i] );
RetValue = 0;
}
for ( i = 0; i < MaxDef; i++ )
if ( Marks[i] == 0 )
printf( "String \"%s\" has no symbol (%c).\n", pStr, 'a' + Marks[i] );
printf( "String \"%s\" has no symbol (%c).\n", pStr, 'a' + Marks[i] ), RetValue = 0;
for ( i = 0; i < MaxVar; i++ )
if ( Marks[i] == 2 )
printf( "String \"%s\" defined input symbol (%c).\n", pStr, 'a' + Marks[i] );
printf( "String \"%s\" has definition of input variable (%c).\n", pStr, 'a' + Marks[i] ), RetValue = 0;
for ( i = MaxVar; i < MaxDef; i++ )
if ( Marks[i] == 1 )
printf( "String \"%s\" has no definition for symbol (%c).\n", pStr, 'a' + Marks[i] );
printf( "String \"%s\" has no definition for internal variable (%c).\n", pStr, 'a' + Marks[i] ), RetValue = 0;
*pnVars = RetValue ? MaxVar : 0;
*pnObjs = RetValue ? MaxDef : 0;
return RetValue;
}
int If_ManStrParse( char * pStr, int nVars, int nObjs, int * pTypes, int * pnFans, int ppFans[][6] )
{
int i, k, n, f;
char Next = 0;
assert( nVars < nObjs );
for ( i = nVars; i < nObjs; i++ )
{
for ( k = 0; pStr[k]; k++ )
if ( pStr[k] == 'a' + i && pStr[k+1] == '=' )
break;
assert( pStr[k] );
if ( pStr[k+2] == '(' )
pTypes[i] = IF_DSD_AND, Next = ')';
else if ( pStr[k+2] == '[' )
pTypes[i] = IF_DSD_XOR, Next = ']';
else if ( pStr[k+2] == '<' )
pTypes[i] = IF_DSD_MUX, Next = '>';
else if ( pStr[k+2] == '{' )
pTypes[i] = IF_DSD_PRIME, Next = '}';
else assert( 0 );
for ( n = k + 3; pStr[n]; n++ )
if ( pStr[n] == Next )
break;
assert( pStr[k] );
pnFans[i] = n - k - 3;
assert( pnFans[i] > 0 && pnFans[i] <= 6 );
for ( f = 0; f < pnFans[i]; f++ )
{
ppFans[i][f] = pStr[k + 3 + f] - 'a';
if ( ppFans[i][f] < 0 || ppFans[i][f] >= nObjs )
printf( "Error!\n" );
}
}
return 1;
}
@ -88,8 +137,15 @@ int If_ManStrCheck( char * pStr )
***********************************************************************/
sat_solver * If_ManSatBuild( char * pStr )
{
int nVars, nObjs;
int pTypes[32] = {0};
int pnFans[32] = {0};
int ppFans[32][6] = {{0}};
sat_solver * pSat = NULL;
if ( !If_ManStrCheck(pStr, &nVars, &nObjs) )
return NULL;
if ( !If_ManStrParse(pStr, nVars, nObjs, pTypes, pnFans, ppFans) )
return NULL;
return pSat;
}

58
src/sat/bmc/bmcFault.c
View File

@ -88,7 +88,7 @@ static inline void Cnf_DataLiftGia( Cnf_Dat_t * p, Gia_Man_t * pGia, int nVarsPl
SeeAlso []
***********************************************************************/
Gia_Man_t * Gia_ManFaultUnfold( Gia_Man_t * p, int fUseMuxes )
Gia_Man_t * Gia_ManFaultUnfold( Gia_Man_t * p, int fUseMuxes, int fComplVars )
{
Gia_Man_t * pNew, * pTemp;
Gia_Obj_t * pObj;
@ -113,7 +113,7 @@ Gia_Man_t * Gia_ManFaultUnfold( Gia_Man_t * p, int fUseMuxes )
pObj->Value = Gia_ManAppendCi( pNew );
Gia_ManForEachAnd( p, pObj, i )
{
iCtrl = Gia_ManAppendCi( pNew );
iCtrl = Abc_LitNotCond( Gia_ManAppendCi(pNew), fComplVars );
iThis = Gia_ManHashAnd( pNew, Gia_ObjFanin0Copy(pObj), Gia_ObjFanin1Copy(pObj) );
if ( fUseMuxes )
pObj->Value = Gia_ManHashMux( pNew, iCtrl, iThis, pObj->Value );
@ -128,6 +128,47 @@ Gia_Man_t * Gia_ManFaultUnfold( Gia_Man_t * p, int fUseMuxes )
return pNew;
}
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
Gia_Man_t * Gia_ManStuckAtUnfold( Gia_Man_t * p, int fUseFaults, int fComplVars )
{
Gia_Man_t * pNew, * pTemp;
Gia_Obj_t * pObj;
int i, iCtrl0, iCtrl1;
pNew = Gia_ManStart( 3 * Gia_ManObjNum(p) );
pNew->pName = Abc_UtilStrsav( p->pName );
Gia_ManHashAlloc( pNew );
Gia_ManConst0(p)->Value = 0;
Gia_ManForEachCi( p, pObj, i )
pObj->Value = Gia_ManAppendCi( pNew );
Gia_ManForEachAnd( p, pObj, i )
{
pObj->Value = Gia_ManHashAnd( pNew, Gia_ObjFanin0Copy(pObj), Gia_ObjFanin1Copy(pObj) );
iCtrl0 = Abc_LitNotCond( Gia_ManAppendCi(pNew), fComplVars );
iCtrl1 = Abc_LitNotCond( Gia_ManAppendCi(pNew), fComplVars );
if ( fUseFaults )
{
pObj->Value = Gia_ManHashAnd( pNew, iCtrl0, pObj->Value );
pObj->Value = Gia_ManHashOr( pNew, Abc_LitNot(iCtrl1), pObj->Value );
}
}
Gia_ManForEachCo( p, pObj, i )
pObj->Value = Gia_ManAppendCo( pNew, Gia_ObjFanin0Copy(pObj) );
pNew = Gia_ManCleanup( pTemp = pNew );
Gia_ManStop( pTemp );
assert( Gia_ManPiNum(pNew) == Gia_ManCiNum(p) + 2 * Gia_ManAndNum(p) );
return pNew;
}
/**Function*************************************************************
Synopsis []
@ -229,18 +270,19 @@ void Gia_ManPrintResults( Gia_Man_t * p, sat_solver * pSat, int nIter, abctime c
SeeAlso []
***********************************************************************/
void Gia_ManFaultTest( Gia_Man_t * p, int nTimeOut, int fDump, int fVerbose )
void Gia_ManFaultTest( Gia_Man_t * p, int fStuckAt, int fComplVars, int nTimeOut, int fDump, int fVerbose )
{
int nIterMax = 1000000;
int i, Iter, status;
abctime clkTotal = Abc_Clock();
abctime clkSat = 0;
int nFuncVars = fStuckAt ? Gia_ManCiNum(p) : Gia_ManRegNum(p) + 2 * Gia_ManPiNum(p);
Vec_Int_t * vLits, * vTests;
sat_solver * pSat;
Gia_Obj_t * pObj;
Gia_Man_t * pC;
Gia_Man_t * p0 = Gia_ManFaultUnfold( p, 0 );
Gia_Man_t * p1 = Gia_ManFaultUnfold( p, 1 );
Gia_Man_t * p0 = fStuckAt ? Gia_ManStuckAtUnfold(p, 0, fComplVars) : Gia_ManFaultUnfold(p, 0, fComplVars);
Gia_Man_t * p1 = fStuckAt ? Gia_ManStuckAtUnfold(p, 1, fComplVars) : Gia_ManFaultUnfold(p, 1, fComplVars);
Gia_Man_t * pM = Gia_ManMiter( p0, p1, 0, 0, 0, 0, 0 );
Cnf_Dat_t * pCnf = Cnf_DeriveGiaRemapped( pM ), * pCnf2;
Gia_ManStop( p0 );
@ -296,7 +338,7 @@ void Gia_ManFaultTest( Gia_Man_t * p, int nTimeOut, int fDump, int fVerbose )
// collect SAT assignment
Vec_IntClear( vLits );
Gia_ManForEachPi( pM, pObj, i )
if ( i < Gia_ManRegNum(p) + 2 * Gia_ManPiNum(p) )
if ( i < nFuncVars )
Vec_IntPush( vLits, sat_solver_var_value(pSat, pCnf->pVarNums[Gia_ObjId(pM, pObj)]) );
Vec_IntAppend( vTests, vLits );
// derive the cofactor
@ -317,7 +359,7 @@ void Gia_ManFaultTest( Gia_Man_t * p, int nTimeOut, int fDump, int fVerbose )
}
// add connection clauses
Gia_ManForEachPi( pM, pObj, i )
if ( i >= Gia_ManRegNum(p) + 2 * Gia_ManPiNum(p) )
if ( i >= nFuncVars )
sat_solver_add_buffer( pSat, pCnf->pVarNums[Gia_ObjId(pM, pObj)], pCnf2->pVarNums[Gia_ObjId(pC, Gia_ManPi(pC, i))], 0 );
Cnf_DataFree( pCnf2 );
Gia_ManStop( pC );
@ -337,6 +379,8 @@ void Gia_ManFaultTest( Gia_Man_t * p, int nTimeOut, int fDump, int fVerbose )
Vec_IntFree( vTests );
}
////////////////////////////////////////////////////////////////////////
/// END OF FILE ///
////////////////////////////////////////////////////////////////////////