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read_cex (#12) 

Added read_cex command
This commit is contained in:
Miodrag Milanović 2022-03-04 10:55:55 +01:00 committed by GitHub
parent b4790a64fa
commit f36724e301
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 285 additions and 7 deletions
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292
src/base/io/io.c
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@ -44,6 +44,7 @@ static int IoCommandReadBblif ( Abc_Frame_t * pAbc, int argc, char **argv );
static int IoCommandReadBlif ( Abc_Frame_t * pAbc, int argc, char **argv );
static int IoCommandReadBlifMv ( Abc_Frame_t * pAbc, int argc, char **argv );
static int IoCommandReadBench ( Abc_Frame_t * pAbc, int argc, char **argv );
static int IoCommandReadCex ( Abc_Frame_t * pAbc, int argc, char **argv );
static int IoCommandReadDsd ( Abc_Frame_t * pAbc, int argc, char **argv );
static int IoCommandReadEdif ( Abc_Frame_t * pAbc, int argc, char **argv );
static int IoCommandReadEqn ( Abc_Frame_t * pAbc, int argc, char **argv );
@ -113,6 +114,7 @@ void Io_Init( Abc_Frame_t * pAbc )
Cmd_CommandAdd( pAbc, "I/O", "read_blif", IoCommandReadBlif, 1 );
Cmd_CommandAdd( pAbc, "I/O", "read_blif_mv", IoCommandReadBlifMv, 1 );
Cmd_CommandAdd( pAbc, "I/O", "read_bench", IoCommandReadBench, 1 );
Cmd_CommandAdd( pAbc, "I/O", "read_cex", IoCommandReadCex, 1 );
Cmd_CommandAdd( pAbc, "I/O", "read_dsd", IoCommandReadDsd, 1 );
Cmd_CommandAdd( pAbc, "I/O", "read_formula", IoCommandReadDsd, 1 );
// Cmd_CommandAdd( pAbc, "I/O", "read_edif", IoCommandReadEdif, 1 );
@ -668,6 +670,271 @@ usage:
return 1;
}
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
int Abc_NtkReadCexFile( char * pFileName, Abc_Ntk_t * pNtk, Abc_Cex_t ** ppCex, int * pnFrames, int * fOldFormat )
{
FILE * pFile;
Abc_Cex_t * pCex;
Vec_Int_t * vNums;
int c, nRegs = -1, nFrames = -1, Status = 0;
pFile = fopen( pFileName, "r" );
if ( pFile == NULL )
{
printf( "Cannot open log file for reading \"%s\".\n" , pFileName );
return -1;
}
vNums = Vec_IntAlloc( 100 );
int usedX = 0;
*fOldFormat = 0;
char Buffer[1000];
int state = 0;
int iPo = 0;
nFrames = -1;
int status = 0;
while ( fgets( Buffer, 1000, pFile ) != NULL )
{
if ( Buffer[0] == '#' )
continue;
Buffer[strlen(Buffer) - 1] = '\0';
if (state==0 && strlen(Buffer)>1) {
// old format detected
*fOldFormat = 1;
state = 2;
iPo = 0;
status = 1;
}
if (state==1 && Buffer[0]!='b' && Buffer[0]!='c') {
// old format detected, first line was actually register
*fOldFormat = 1;
state = 3;
Vec_IntPush( vNums, status );
status = 1;
}
if (Buffer[0] == '.' )
break;
switch(state) {
case 0 :
{
char c = Buffer[0];
if ( c == '0' || c == '1' || c == '2' ) {
status = c - '0' ;
state = 1;
} else if ( c == 'x' ) {
// old format with one x state latch
usedX = 1;
// set to 2 so we can Abc_LatchSetInitNone
// acts like 0 when setting bits
Vec_IntPush( vNums, 2 );
nRegs = Vec_IntSize(vNums);
state = 3;
} else {
printf( "ERROR: Bad aiger status line.\n" );
return -1;
}
}
break;
case 1 :
iPo = atoi(Buffer+1);
state = 2;
break;
case 2 :
for (int i=0; i<strlen(Buffer);i++) {
char c = Buffer[i];
if ( c == '0' || c == '1' )
Vec_IntPush( vNums, c - '0' );
else if ( c == 'x') {
usedX = 1;
// set to 2 so we can Abc_LatchSetInitNone
// acts like 0 when setting bits
Vec_IntPush( vNums, 2 );
}
}
nRegs = Vec_IntSize(vNums);
state = 3;
break;
default:
for (int i=0; i<strlen(Buffer);i++) {
char c = Buffer[i];
if ( c == '0' || c == '1' )
Vec_IntPush( vNums, c - '0' );
else if ( c == 'x') {
usedX = 1;
Vec_IntPush( vNums, 0 );
}
}
nFrames++;
break;
}
}
fclose( pFile );
if (usedX)
printf( "Warning: Using 0 instead of x in latches or primary inputs\n" );
int i;
Abc_Obj_t * pObj;
int iFrameCex = nFrames;
int nRegsNtk = 0;
int nPiNtk = 0;
int nPoNtk = 0;
Abc_NtkForEachLatch( pNtk, pObj, i ) nRegsNtk++;
Abc_NtkForEachPi(pNtk, pObj, i ) nPiNtk++;
Abc_NtkForEachPo(pNtk, pObj, i ) nPoNtk++;
if ( nRegs < 0 )
{
printf( "ERROR: Cannot read register number.\n" );
Vec_IntFree( vNums );
return -1;
}
if ( nRegs != nRegsNtk )
{
printf( "ERROR: Register number not coresponding to Ntk.\n" );
Vec_IntFree( vNums );
return -1;
}
if ( Vec_IntSize(vNums)-nRegs == 0 )
{
printf( "ERROR: Cannot read counter example.\n" );
Vec_IntFree( vNums );
return -1;
}
if ( (Vec_IntSize(vNums)-nRegs) % (iFrameCex + 1) != 0 )
{
printf( "ERROR: Incorrect number of bits.\n" );
Vec_IntFree( vNums );
return -1;
}
int nPi = (Vec_IntSize(vNums)-nRegs)/(iFrameCex + 1);
if ( nPi != nPiNtk )
{
printf( "ERROR: Number of primary inputs not coresponding to Ntk.\n" );
Vec_IntFree( vNums );
return -1;
}
if ( iPo >= nPoNtk )
{
printf( "ERROR: PO that failed verification not coresponding to Ntk.\n" );
Vec_IntFree( vNums );
return -1;
}
Abc_NtkForEachLatch( pNtk, pObj, i ) {
if ( Vec_IntEntry(vNums, i) ==0)
Abc_LatchSetInit0(pObj);
else if ( Vec_IntEntry(vNums, i) ==2)
Abc_LatchSetInitNone(pObj);
else
Abc_LatchSetInit1(pObj);
}
pCex = Abc_CexAlloc( nRegs, nPi, iFrameCex + 1 );
// the zero-based number of PO, for which verification failed
// fails in Bmc_CexVerify if not less than actual number of PO
pCex->iPo = iPo;
// the zero-based number of the time-frame, for which verificaiton failed
pCex->iFrame = iFrameCex;
assert( Vec_IntSize(vNums) == pCex->nBits );
for ( c = 0; c < pCex->nBits; c++ )
if ( Vec_IntEntry(vNums, c) == 1)
Abc_InfoSetBit( pCex->pData, c );
Vec_IntFree( vNums );
if ( ppCex )
*ppCex = pCex;
else
ABC_FREE( pCex );
if ( pnFrames )
*pnFrames = nFrames;
return Status;
}
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
int IoCommandReadCex( Abc_Frame_t * pAbc, int argc, char ** argv )
{
Abc_Ntk_t * pNtk;
char * pFileName;
FILE * pFile;
int fCheck;
int c;
int fOldFormat = 0;
fCheck = 1;
Extra_UtilGetoptReset();
while ( ( c = Extra_UtilGetopt( argc, argv, "ch" ) ) != EOF )
{
switch ( c )
{
case 'c':
fCheck ^= 1;
break;
case 'h':
goto usage;
default:
goto usage;
}
}
if ( argc != globalUtilOptind + 1 )
goto usage;
// get the input file name
pFileName = argv[globalUtilOptind];
if ( (pFile = fopen( pFileName, "r" )) == NULL )
{
fprintf( pAbc->Err, "Cannot open input file \"%s\". \n", pFileName );
return 1;
}
fclose( pFile );
pNtk = pAbc->pNtkCur;
if ( pNtk == NULL )
{
fprintf( pAbc->Out, "Empty network.\n" );
return 0;
}
Abc_FrameClearVerifStatus( pAbc );
pAbc->Status = Abc_NtkReadCexFile( pFileName, pNtk, &pAbc->pCex, &pAbc->nFrames, &fOldFormat );
if ( fCheck ) {
extern Aig_Man_t * Abc_NtkToDar( Abc_Ntk_t * pNtk, int fExors, int fRegisters );
Aig_Man_t * pAig = Abc_NtkToDar( pNtk, 0, 1 );
Bmc_CexCareVerify( pAig, pAbc->pCex, pAbc->pCex, false );
Aig_ManStop( pAig );
} else if (fOldFormat) {
fprintf( pAbc->Err, "Using old aiger format with no checks enabled.\n" );
return -1;
}
return 0;
usage:
fprintf( pAbc->Err, "usage: read_cex [-ch] <file>\n" );
fprintf( pAbc->Err, "\t reads the witness cex\n" );
fprintf( pAbc->Err, "\t-c : toggle check after reading [default = %s]\n", fCheck? "yes":"no" );
fprintf( pAbc->Err, "\t-h : prints the command summary\n" );
fprintf( pAbc->Err, "\tfile : the name of a file to read\n" );
return 1;
}
/**Function*************************************************************
Synopsis []
@ -2447,7 +2714,7 @@ extern Abc_Cex_t * Bmc_CexCareBits( Gia_Man_t * p, Abc_Cex_t * pCexState, Abc_Ce
void Abc_NtkDumpOneCex( FILE * pFile, Abc_Ntk_t * pNtk, Abc_Cex_t * pCex,
int fPrintFull, int fNames, int fUseFfNames, int fMinimize, int fUseOldMin, int fCexInfo,
int fCheckCex, int fUseSatBased, int fHighEffort, int fAiger, int fVerbose )
int fCheckCex, int fUseSatBased, int fHighEffort, int fAiger, int fVerbose, int fExtended )
{
Abc_Cex_t * pCare = NULL;
Abc_Obj_t * pObj;
@ -2558,13 +2825,17 @@ void Abc_NtkDumpOneCex( FILE * pFile, Abc_Ntk_t * pNtk, Abc_Cex_t * pCex,
}
else
{
if (fExtended && fAiger && !fNames) {
fprintf( pFile, "1\n");
fprintf( pFile, "b%d\n", pCex->iPo);
}
// output flop values (unaffected by the minimization)
Abc_NtkForEachLatch( pNtk, pObj, i )
if ( fNames )
fprintf( pFile, "%s@0=%c\n", Abc_ObjName(Abc_ObjFanout0(pObj)), '0'+!Abc_LatchIsInit0(pObj) );
else
fprintf( pFile, "%c", '0'+!Abc_LatchIsInit0(pObj) );
if ( !fNames )
if ( !fNames && fAiger)
fprintf( pFile, "\n");
// output PI values (while skipping the minimized ones)
for ( f = 0; f <= pCex->iFrame; f++ ) {
@ -2576,9 +2847,11 @@ void Abc_NtkDumpOneCex( FILE * pFile, Abc_Ntk_t * pNtk, Abc_Cex_t * pCex,
fprintf( pFile, "%c", '0'+Abc_InfoHasBit(pCex->pData, pCex->nRegs+pCex->nPis*f + i) );
else if ( !fNames )
fprintf( pFile, "x");
if ( !fNames )
if ( !fNames && fAiger)
fprintf( pFile, "\n");
}
if (fExtended && fAiger && !fNames)
fprintf( pFile, ".\n");
}
Abc_CexFreeP( &pCare );
}
@ -2611,9 +2884,10 @@ int IoCommandWriteCex( Abc_Frame_t * pAbc, int argc, char **argv )
int fUseFfNames = 0;
int fVerbose = 0;
int fCexInfo = 0;
int fExtended = 0;
Extra_UtilGetoptReset();
while ( ( c = Extra_UtilGetopt( argc, argv, "snmueocafzvhx" ) ) != EOF )
while ( ( c = Extra_UtilGetopt( argc, argv, "snmueocafzvhxt" ) ) != EOF )
{
switch ( c )
{
@ -2653,6 +2927,9 @@ int IoCommandWriteCex( Abc_Frame_t * pAbc, int argc, char **argv )
case 'x':
fCexInfo ^= 1;
break;
case 't':
fExtended ^= 1;
break;
case 'h':
goto usage;
default:
@ -2702,7 +2979,7 @@ int IoCommandWriteCex( Abc_Frame_t * pAbc, int argc, char **argv )
{
Abc_NtkDumpOneCex( pFile, pNtk, pCex,
fPrintFull, fNames, fUseFfNames, fMinimize, fUseOldMin, fCexInfo,
fCheckCex, fUseSatBased, fHighEffort, fAiger, fVerbose );
fCheckCex, fUseSatBased, fHighEffort, fAiger, fVerbose, fExtended );
}
else if ( pAbc->vCexVec )
{
@ -2710,10 +2987,10 @@ int IoCommandWriteCex( Abc_Frame_t * pAbc, int argc, char **argv )
{
if ( pCex == NULL )
continue;
fprintf( pFile, "#\n#\n# CEX for output %d\n#\n", i );
fprintf( pFile, "#\n#\n# CEX for output %d\n#\n", i );
Abc_NtkDumpOneCex( pFile, pNtk, pCex,
fPrintFull, fNames, fUseFfNames, fMinimize, fUseOldMin, fCexInfo,
fCheckCex, fUseSatBased, fHighEffort, fAiger, fVerbose );
fCheckCex, fUseSatBased, fHighEffort, fAiger, fVerbose, fExtended );
}
}
fprintf( pFile, "# DONE\n" );
@ -2760,6 +3037,7 @@ usage:
fprintf( pAbc->Err, "\t-x : minimize using algorithm from cexinfo command [default = %s]\n", fCexInfo? "yes": "no" );
fprintf( pAbc->Err, "\t-c : check generated CEX using ternary simulation [default = %s]\n", fCheckCex? "yes": "no" );
fprintf( pAbc->Err, "\t-a : print cex in AIGER 1.9 format [default = %s]\n", fAiger? "yes": "no" );
fprintf( pAbc->Err, "\t-t : extended header info when cex in AIGER 1.9 format [default = %s]\n", fAiger? "yes": "no" );
fprintf( pAbc->Err, "\t-f : enable printing flop values in each timeframe [default = %s]\n", fPrintFull? "yes": "no" );
fprintf( pAbc->Err, "\t-z : toggle using saved flop names [default = %s]\n", fUseFfNames? "yes": "no" );
fprintf( pAbc->Err, "\t-v : enable verbose output [default = %s]\n", fVerbose? "yes": "no" );