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Updates to arithmetic verification.

This commit is contained in:
Alan Mishchenko 2017-01-11 13:36:54 +07:00
parent 4bfb97d3e1
commit 89d08cfd06
4 changed files with 257 additions and 31 deletions
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2
src/proof/acec/acecCore.c
View File

@ -70,12 +70,14 @@ void Acec_ManCecSetDefaultParams( Acec_ParCec_t * p )
***********************************************************************/
void Acec_BoxFree( Acec_Box_t * pBox )
{
Vec_WecFreeP( &pBox->vAdds );
Vec_WecFreeP( &pBox->vLeafs );
Vec_WecFreeP( &pBox->vRoots );
Vec_WecFreeP( &pBox->vLeafLits );
Vec_WecFreeP( &pBox->vRootLits );
Vec_WecFreeP( &pBox->vUnique );
Vec_WecFreeP( &pBox->vShared );
Vec_BitFreeP( &pBox->vInvHadds );
ABC_FREE( pBox );
}
void Acec_BoxFreeP( Acec_Box_t ** ppBox )

2
src/proof/acec/acecInt.h
View File

@ -41,12 +41,14 @@ typedef struct Acec_Box_t_ Acec_Box_t;
struct Acec_Box_t_
{
Gia_Man_t * pGia; // AIG manager
Vec_Wec_t * vAdds; // adders by rank
Vec_Wec_t * vLeafs; // leaf literals by rank
Vec_Wec_t * vRoots; // root literals by rank
Vec_Wec_t * vLeafLits; // leaf literals by rank
Vec_Wec_t * vRootLits; // root literals by rank
Vec_Wec_t * vShared; // shared leaves
Vec_Wec_t * vUnique; // unique leaves
Vec_Bit_t * vInvHadds; // complemented half adders
};
////////////////////////////////////////////////////////////////////////

11
src/proof/acec/acecRe.c
View File

@ -370,7 +370,7 @@ Vec_Int_t * Ree_ManDeriveAdds( Hash_IntMan_t * p, Vec_Int_t * vData, int fVerbos
Vec_IntForEachEntryDouble( vXorOne, iObj, Truth, j )
Vec_IntForEachEntryDouble( vMajOne, iObj2, Truth2, k )
{
int SignAnd[8] = {0x88, 0x44, 0x22, 0x11, 0xEE, 0xDD, 0xBB, 0x77};
int SignAnd[8] = {0x88, 0x44, 0x22, 0x11, 0x77, 0xBB, 0xDD, 0xEE};
int SignMaj[8] = {0xE8, 0xD4, 0xB2, 0x71, 0x8E, 0x4D, 0x2B, 0x17};
int n, SignXor = (Truth == 0x99 || Truth == 0x69) << 3;
for ( n = 0; n < 8; n++ )
@ -390,6 +390,14 @@ Vec_Int_t * Ree_ManDeriveAdds( Hash_IntMan_t * p, Vec_Int_t * vData, int fVerbos
Vec_WecFree( vMajMap );
return vAdds;
}
int Ree_ManCompare( int * pCut0, int * pCut1 )
{
if ( pCut0[3] < pCut1[3] ) return -1;
if ( pCut0[3] > pCut1[3] ) return 1;
if ( pCut0[4] < pCut1[4] ) return -1;
if ( pCut0[4] > pCut1[4] ) return 1;
return 0;
}
Vec_Int_t * Ree_ManComputeCuts( Gia_Man_t * p, Vec_Int_t ** pvXors, int fVerbose )
{
extern void Ree_ManRemoveTrivial( Gia_Man_t * p, Vec_Int_t * vAdds );
@ -427,6 +435,7 @@ Vec_Int_t * Ree_ManComputeCuts( Gia_Man_t * p, Vec_Int_t ** pvXors, int fVerbose
Vec_IntFree( vTemp );
Vec_IntFree( vCuts );
vAdds = Ree_ManDeriveAdds( pHash, vData, fVerbose );
qsort( Vec_IntArray(vAdds), Vec_IntSize(vAdds)/6, 24, (int (*)(const void *, const void *))Ree_ManCompare );
if ( fVerbose )
printf( "Adders = %d. Total cuts = %d. Hashed cuts = %d. Hashed/Adders = %.2f.\n",
Vec_IntSize(vAdds)/6, Vec_IntSize(vData)/3, Hash_IntManEntryNum(pHash), 6.0*Hash_IntManEntryNum(pHash)/Vec_IntSize(vAdds) );

273
src/proof/acec/acecTree.c
View File

@ -169,23 +169,6 @@ void Acec_TreeFindTreesTest( Gia_Man_t * p )
SeeAlso []
***********************************************************************/
void Acec_PrintRootLits( Vec_Wec_t * vRoots )
{
Vec_Int_t * vLevel;
int i, k, iObj;
Vec_WecForEachLevel( vRoots, vLevel, i )
{
printf( "Rank %d : ", i );
Vec_IntForEachEntry( vLevel, iObj, k )
{
int fFadd = Abc_LitIsCompl(iObj);
int fCout = Abc_LitIsCompl(Abc_Lit2Var(iObj));
int Node = Abc_Lit2Var(Abc_Lit2Var(iObj));
printf( "%d%s%s ", Node, fCout ? "*" : "", (fCout && fFadd) ? "*" : "" );
}
printf( "\n" );
}
}
int Acec_CreateBoxMaxRank( Vec_Int_t * vTree )
{
int k, Box, Rank, MaxRank = 0;
@ -193,7 +176,7 @@ int Acec_CreateBoxMaxRank( Vec_Int_t * vTree )
MaxRank = Abc_MaxInt( MaxRank, Rank );
return MaxRank;
}
void Acec_BoxInsOuts( Gia_Man_t * p, Vec_Int_t * vAdds, Vec_Int_t * vTree, Vec_Wec_t * vLeaves, Vec_Wec_t * vRoots )
void Acec_TreeInsOuts( Gia_Man_t * p, Vec_Int_t * vAdds, Vec_Int_t * vTree, Vec_Wec_t * vBoxes, Vec_Wec_t * vLeaves, Vec_Wec_t * vRoots )
{
Vec_Bit_t * vIsLeaf = Vec_BitStart( Gia_ManObjNum(p) );
Vec_Bit_t * vIsRoot = Vec_BitStart( Gia_ManObjNum(p) );
@ -211,6 +194,7 @@ void Acec_BoxInsOuts( Gia_Man_t * p, Vec_Int_t * vAdds, Vec_Int_t * vTree, Vec_W
}
Vec_IntForEachEntryDouble( vTree, Box, Rank, i )
{
Vec_WecPush( vBoxes, Rank, Box );
for ( k = 0; k < 3; k++ )
{
if ( Vec_BitEntry( vIsRoot, Vec_IntEntry(vAdds, 6*Box+k) ) )
@ -229,12 +213,91 @@ void Acec_BoxInsOuts( Gia_Man_t * p, Vec_Int_t * vAdds, Vec_Int_t * vTree, Vec_W
Vec_BitFree( vIsLeaf );
Vec_BitFree( vIsRoot );
// sort each level
Vec_WecForEachLevel( vBoxes, vLevel, i )
Vec_IntSort( vLevel, 0 );
Vec_WecForEachLevel( vLeaves, vLevel, i )
Vec_IntSort( vLevel, 0 );
Vec_WecForEachLevel( vRoots, vLevel, i )
Vec_IntSort( vLevel, 0 );
}
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
int Acec_TreeVerifyPhaseOne_rec( Gia_Man_t * p, Gia_Obj_t * pObj )
{
int Truth0, Truth1;
if ( Gia_ObjIsTravIdCurrent(p, pObj) )
return pObj->Value;
Gia_ObjSetTravIdCurrent(p, pObj);
assert( Gia_ObjIsAnd(pObj) );
assert( !Gia_ObjIsXor(pObj) );
Truth0 = Acec_TreeVerifyPhaseOne_rec( p, Gia_ObjFanin0(pObj) );
Truth1 = Acec_TreeVerifyPhaseOne_rec( p, Gia_ObjFanin1(pObj) );
Truth0 = Gia_ObjFaninC0(pObj) ? 0xFF & ~Truth0 : Truth0;
Truth1 = Gia_ObjFaninC1(pObj) ? 0xFF & ~Truth1 : Truth1;
return (pObj->Value = Truth0 & Truth1);
}
void Acec_TreeVerifyPhaseOne( Gia_Man_t * p, Vec_Int_t * vAdds, int iBox, Vec_Bit_t * vPhase )
{
Gia_Obj_t * pObj;
unsigned TruthXor, TruthMaj, Truths[3] = { 0xAA, 0xCC, 0xF0 };
int k, iObj, fFadd = Vec_IntEntry(vAdds, 6*iBox+2) > 0;
//if ( !fFadd )
// return;
Gia_ManIncrementTravId( p );
for ( k = 0; k < 3; k++ )
{
iObj = Vec_IntEntry( vAdds, 6*iBox+k );
if ( iObj == 0 )
continue;
pObj = Gia_ManObj( p, iObj );
pObj->Value = Vec_BitEntry(vPhase, iObj) ? 0xFF & ~Truths[k] : Truths[k];
Gia_ObjSetTravIdCurrent( p, pObj );
}
iObj = Vec_IntEntry( vAdds, 6*iBox+3 );
TruthXor = Acec_TreeVerifyPhaseOne_rec( p, Gia_ManObj(p, iObj) );
TruthXor = Vec_BitEntry(vPhase, iObj) ? 0xFF & ~TruthXor : TruthXor;
iObj = Vec_IntEntry( vAdds, 6*iBox+4 );
TruthMaj = Acec_TreeVerifyPhaseOne_rec( p, Gia_ManObj(p, iObj) );
TruthMaj = Vec_BitEntry(vPhase, iObj) ? 0xFF & ~TruthMaj : TruthMaj;
if ( fFadd ) // FADD
{
if ( TruthXor != 0x96 )
printf( "Fadd %d sum is wrong.\n", iBox );
if ( TruthMaj != 0xE8 )
printf( "Fadd %d carry is wrong.\n", iBox );
}
else
{
if ( TruthXor != 0x66 )
printf( "Hadd %d sum is wrong.\n", iBox );
if ( TruthMaj != 0x88 )
printf( "Hadd %d carry is wrong.\n", iBox );
}
}
void Acec_TreeVerifyPhases( Gia_Man_t * p, Vec_Int_t * vAdds, Vec_Wec_t * vBoxes, Vec_Bit_t * vPhase )
{
Vec_Int_t * vLevel;
int i, k, Box;
Vec_WecForEachLevel( vBoxes, vLevel, i )
Vec_IntForEachEntry( vLevel, Box, k )
Acec_TreeVerifyPhaseOne( p, vAdds, Box, vPhase );
}
/**Function*************************************************************
Synopsis [Creates polarity.]
@ -246,8 +309,96 @@ void Acec_BoxInsOuts( Gia_Man_t * p, Vec_Int_t * vAdds, Vec_Int_t * vTree, Vec_W
SeeAlso []
***********************************************************************/
void Acec_BoxPhases( Gia_Man_t * p, Vec_Int_t * vAdds, Vec_Int_t * vTree, Vec_Wec_t * vLeaves, Vec_Wec_t * vRoots, Vec_Wec_t * vLeafLits, Vec_Wec_t * vRootLits )
Vec_Int_t * Acec_TreeCarryMap( Gia_Man_t * p, Vec_Int_t * vAdds, Vec_Wec_t * vBoxes )
{
Vec_Int_t * vMap = Vec_IntStartFull( Gia_ManObjNum(p) );
Vec_Int_t * vLevel;
int i, k, Box;
Vec_WecForEachLevel( vBoxes, vLevel, i )
Vec_IntForEachEntry( vLevel, Box, k )
Vec_IntWriteEntry( vMap, Vec_IntEntry(vAdds, 6*Box+4), Box );
return vMap;
}
void Acec_TreePhases_rec( Gia_Man_t * p, Vec_Int_t * vAdds, Vec_Int_t * vMap, int Node, int fPhase,
Vec_Bit_t * vPhase, Vec_Bit_t * vInvHadds, Vec_Bit_t * vVisit )
{
int k, iBox, iXor, Sign, fXorPhase, fPhaseThis;
assert( Node != 0 );
if ( Vec_BitEntry(vVisit, Node) )
{
assert( Vec_BitEntry(vPhase, Node) == fPhase );
return;
}
Vec_BitWriteEntry( vVisit, Node, 1 );
if ( fPhase )
Vec_BitWriteEntry( vPhase, Node, fPhase );
iBox = Vec_IntEntry( vMap, Node );
if ( iBox == -1 )
return;
assert( Node == Vec_IntEntry( vAdds, 6*iBox+4 ) );
iXor = Vec_IntEntry( vAdds, 6*iBox+3 );
Sign = Vec_IntEntry( vAdds, 6*iBox+5 );
fXorPhase = ((Sign >> 3) & 1);
if ( Vec_IntEntry(vAdds, 6*iBox+2) == 0 )
{
fPhase ^= ((Sign >> 2) & 1);
// remember complemented HADD
if ( fPhase )
Vec_BitWriteEntry( vInvHadds, iBox, 1 );
}
for ( k = 0; k < 3; k++ )
{
int iObj = Vec_IntEntry( vAdds, 6*iBox+k );
if ( iObj == 0 )
continue;
fPhaseThis = ((Sign >> k) & 1) ^ fPhase;
fXorPhase ^= fPhaseThis;
Acec_TreePhases_rec( p, vAdds, vMap, iObj, fPhaseThis, vPhase, vInvHadds, vVisit );
}
if ( Vec_BitEntry(vVisit, iXor) )
assert( Vec_BitEntry(vPhase, iXor) == fXorPhase );
if ( fXorPhase )
Vec_BitWriteEntry( vPhase, iXor, fXorPhase );
}
void Acec_TreePhases( Gia_Man_t * p, Vec_Int_t * vAdds, Vec_Wec_t * vBoxes,
Vec_Wec_t * vLeaves, Vec_Wec_t * vRoots,
Vec_Wec_t * vLeafLits, Vec_Wec_t * vRootLits, Vec_Bit_t * vInvHadds )
{
Vec_Int_t * vMap = Acec_TreeCarryMap( p, vAdds, vBoxes );
Vec_Bit_t * vPhase = Vec_BitStart( Gia_ManObjNum(p) );
Vec_Bit_t * vVisit = Vec_BitStart( Gia_ManObjNum(p) );
Vec_Int_t * vLevel;
int i, k, iObj;
Vec_WecForEachLevelReverse( vRoots, vLevel, i )
{
Vec_IntForEachEntry( vLevel, iObj, k )
{
int fFadd = Abc_LitIsCompl(iObj);
int fCout = Abc_LitIsCompl(Abc_Lit2Var(iObj));
int Node = Abc_Lit2Var(Abc_Lit2Var(iObj));
if ( !fCout )
continue;
Acec_TreePhases_rec( p, vAdds, vMap, Node, fFadd, vPhase, vInvHadds, vVisit );
}
}
Vec_IntFree( vMap );
Vec_BitFree( vVisit );
Acec_TreeVerifyPhases( p, vAdds, vBoxes, vPhase );
// create leaves
Vec_WecForEachLevel( vLeaves, vLevel, i )
Vec_IntForEachEntry( vLevel, iObj, k )
Vec_WecPush( vLeafLits, i, Abc_Var2Lit(iObj, Vec_BitEntry(vPhase, iObj)) );
// add constants
Vec_WecForEachLevel( vBoxes, vLevel, i )
Vec_IntForEachEntry( vLevel, iObj, k )
if ( Vec_BitEntry(vInvHadds, iObj) )
Vec_WecPush( vLeafLits, i, 1 );
// create roots
Vec_WecForEachLevel( vRoots, vLevel, i )
Vec_IntForEachEntry( vLevel, iObj, k )
iObj >>= 2, Vec_WecPush( vRootLits, i, Abc_Var2Lit(iObj, Vec_BitEntry(vPhase, iObj)) );
// cleanup
Vec_BitFree( vPhase );
}
/**Function*************************************************************
@ -261,20 +412,77 @@ void Acec_BoxPhases( Gia_Man_t * p, Vec_Int_t * vAdds, Vec_Int_t * vTree, Vec_We
SeeAlso []
***********************************************************************/
void Acec_PrintRootLits( Vec_Wec_t * vRoots )
{
Vec_Int_t * vLevel;
int i, k, iObj;
Vec_WecForEachLevel( vRoots, vLevel, i )
{
printf( "Rank %d : ", i );
Vec_IntForEachEntry( vLevel, iObj, k )
{
int fFadd = Abc_LitIsCompl(iObj);
int fCout = Abc_LitIsCompl(Abc_Lit2Var(iObj));
int Node = Abc_Lit2Var(Abc_Lit2Var(iObj));
printf( "%d%s%s ", Node, fCout ? "*" : "", (fCout && fFadd) ? "*" : "" );
}
printf( "\n" );
}
}
void Acec_PrintAdders( Vec_Wec_t * vBoxes, Vec_Int_t * vAdds )
{
Vec_Int_t * vLevel;
int i, k, iBox;
Vec_WecForEachLevel( vBoxes, vLevel, i )
{
printf( " %4d : {", i );
Vec_IntForEachEntry( vLevel, iBox, k )
printf( " (%d,%d)", Vec_IntEntry(vAdds, 6*iBox+3), Vec_IntEntry(vAdds, 6*iBox+4) );
printf( " }\n" );
}
}
void Vec_WecPrintLits( Vec_Wec_t * p )
{
Vec_Int_t * vVec;
int i, k, Entry;
Vec_WecForEachLevel( p, vVec, i )
{
printf( " %4d : {", i );
Vec_IntForEachEntry( vVec, Entry, k )
printf( " %c%d", Abc_LitIsCompl(Entry) ? '-' : '+', Abc_Lit2Var(Entry) );
printf( " }\n" );
}
}
void Acec_PrintBox( Acec_Box_t * pBox, Vec_Int_t * vAdds )
{
printf( "Adders:\n" );
Acec_PrintAdders( pBox->vAdds, vAdds );
printf( "Inputs:\n" );
Vec_WecPrintLits( pBox->vLeafLits );
printf( "Outputs:\n" );
Vec_WecPrintLits( pBox->vRootLits );
//printf( "Raw outputs:\n" );
//Acec_PrintRootLits( pBox->vRoots );
}
Acec_Box_t * Acec_CreateBox( Gia_Man_t * p, Vec_Int_t * vAdds, Vec_Int_t * vTree )
{
int MaxRank = Acec_CreateBoxMaxRank(vTree);
Acec_Box_t * pBox = ABC_CALLOC( Acec_Box_t, 1 );
pBox->pGia = p;
pBox->vLeafs = Vec_WecStart( Acec_CreateBoxMaxRank(vTree) + 1 );
pBox->vRoots = Vec_WecStart( Vec_WecSize(pBox->vLeafs) + 1 );
pBox->vAdds = Vec_WecStart( MaxRank + 1 );
pBox->vLeafs = Vec_WecStart( MaxRank + 1 );
pBox->vRoots = Vec_WecStart( MaxRank + 2 );
Acec_BoxInsOuts( p, vAdds, vTree, pBox->vLeafs, pBox->vRoots );
Acec_TreeInsOuts( p, vAdds, vTree, pBox->vAdds, pBox->vLeafs, pBox->vRoots );
pBox->vLeafLits = Vec_WecStart( Vec_WecSize(pBox->vLeafs) );
pBox->vRootLits = Vec_WecStart( Vec_WecSize(pBox->vRoots) );
pBox->vInvHadds = Vec_BitStart( Vec_IntSize(vAdds)/6 );
Acec_BoxPhases( p, vAdds, vTree, pBox->vLeafs, pBox->vRoots, pBox->vLeafLits, pBox->vRootLits );
Acec_TreePhases( p, vAdds, pBox->vAdds, pBox->vLeafs, pBox->vRoots, pBox->vLeafLits, pBox->vRootLits, pBox->vInvHadds );
return pBox;
}
@ -283,10 +491,11 @@ void Acec_CreateBoxTest( Gia_Man_t * p )
extern void Acec_BoxFree( Acec_Box_t * pBox );
Acec_Box_t * pBox;
Vec_Wec_t * vTrees;
Vec_Int_t * vTree;
abctime clk = Abc_Clock();
Vec_Int_t * vAdds = Ree_ManComputeCuts( p, NULL, 1 );
int nFadds = Ree_ManCountFadds( vAdds );
int i, nFadds = Ree_ManCountFadds( vAdds );
printf( "Detected %d adders (%d FAs and %d HAs). ", Vec_IntSize(vAdds)/6, nFadds, Vec_IntSize(vAdds)/6-nFadds );
Abc_PrintTime( 1, "Time", Abc_Clock() - clk );
@ -294,13 +503,17 @@ void Acec_CreateBoxTest( Gia_Man_t * p )
vTrees = Acec_TreeFindTrees( p, vAdds );
printf( "Collected %d trees with %d adders in them. ", Vec_WecSize(vTrees), Vec_WecSizeSize(vTrees)/2 );
Abc_PrintTime( 1, "Time", Abc_Clock() - clk );
Vec_WecPrint( vTrees, 0 );
//Vec_WecPrint( vTrees, 0 );
pBox = Acec_CreateBox( p, vAdds, Vec_WecEntry(vTrees, 0) );
Vec_WecPrint( pBox->vLeafs, 0 );
Vec_WecPrint( pBox->vRoots, 0 );
Acec_PrintRootLits( pBox->vRoots );
Acec_BoxFree( pBox );
Vec_WecForEachLevel( vTrees, vTree, i )
{
pBox = Acec_CreateBox( p, vAdds, Vec_WecEntry(vTrees, i) );
printf( "Processing tree %d: Ranks = %d. Adders = %d. Leaves = %d. Roots = %d.\n",
i, Vec_WecSize(pBox->vAdds), Vec_WecSizeSize(pBox->vAdds),
Vec_WecSizeSize(pBox->vLeafLits), Vec_WecSizeSize(pBox->vRootLits) );
//Acec_PrintBox( pBox );
Acec_BoxFree( pBox );
}
Vec_WecFree( vTrees );
Vec_IntFree( vAdds );