/**CFile**************************************************************** FileName [fra.h] SystemName [ABC: Logic synthesis and verification system.] PackageName [[New FRAIG package.] Synopsis [External declarations.] Author [Alan Mishchenko] Affiliation [UC Berkeley] Date [Ver. 1.0. Started - June 30, 2007.] Revision [$Id: fra.h,v 1.00 2007/06/30 00:00:00 alanmi Exp $] ***********************************************************************/ #ifndef ABC__aig__fra__fra_h #define ABC__aig__fra__fra_h //////////////////////////////////////////////////////////////////////// /// INCLUDES /// //////////////////////////////////////////////////////////////////////// #include #include #include #include #include "misc/vec/vec.h" #include "aig/aig/aig.h" #include "opt/dar/dar.h" #include "sat/bsat/satSolver.h" #include "aig/ioa/ioa.h" //////////////////////////////////////////////////////////////////////// /// PARAMETERS /// //////////////////////////////////////////////////////////////////////// ABC_NAMESPACE_HEADER_START //////////////////////////////////////////////////////////////////////// /// BASIC TYPES /// //////////////////////////////////////////////////////////////////////// typedef struct Fra_Par_t_ Fra_Par_t; typedef struct Fra_Ssw_t_ Fra_Ssw_t; typedef struct Fra_Sec_t_ Fra_Sec_t; typedef struct Fra_Man_t_ Fra_Man_t; typedef struct Fra_Cla_t_ Fra_Cla_t; typedef struct Fra_Sml_t_ Fra_Sml_t; typedef struct Fra_Bmc_t_ Fra_Bmc_t; // FRAIG parameters struct Fra_Par_t_ { int nSimWords; // the number of words in the simulation info double dSimSatur; // the ratio of refined classes when saturation is reached int fPatScores; // enables simulation pattern scoring 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 int fDoSparse; // skip sparse functions int fConeBias; // bias variables in the cone (good for unsat runs) int nBTLimitNode; // conflict limit at a node int nBTLimitMiter; // conflict limit at an output int nLevelMax; // the max level to consider seriously int nFramesP; // the number of timeframes to in the prefix int nFramesK; // the number of timeframes to unroll int nMaxImps; // the maximum number of implications to consider int nMaxLevs; // the maximum number of levels to consider int fRewrite; // use rewriting for constraint reduction int fLatchCorr; // computes latch correspondence only int fUseImps; // use implications int fUse1Hot; // use one-hotness conditions int fWriteImps; // record implications int fDontShowBar; // does not show progressbar during fraiging }; // seq SAT sweeping parameters struct Fra_Ssw_t_ { int nPartSize; // size of the partition int nOverSize; // size of the overlap between partitions int nFramesP; // number of frames in the prefix int nFramesK; // number of frames for induction (1=simple) int nMaxImps; // max implications to consider int nMaxLevs; // max levels to consider int nMinDomSize; // min clock domain considered for optimization int fUseImps; // use implications int fRewrite; // enable rewriting of the specualatively reduced model int fFraiging; // enable comb SAT sweeping as preprocessing int fLatchCorr; // perform register correspondence int fWriteImps; // write implications into a file int fUse1Hot; // use one-hotness constraints int fVerbose; // enable verbose output int fSilent; // disable any output int nIters; // the number of iterations performed float TimeLimit; // the runtime budget for this call }; // SEC parametesr struct Fra_Sec_t_ { int fTryComb; // try CEC call as a preprocessing step int fTryBmc; // try BMC call as a preprocessing step int nFramesMax; // the max number of frames used for induction int nBTLimit; // the conflict limit at a node int nBTLimitGlobal; // the global conflict limit int nBTLimitInter; // the conflict limit for interpolation int nBddVarsMax; // the state space limit for BDD reachability int nBddMax; // the max number of BDD nodes int nBddIterMax; // the limit on the number of BDD iterations int nPdrTimeout; // the timeout for PDR in the end int fPhaseAbstract; // enables phase abstraction int fRetimeFirst; // enables most-forward retiming at the beginning int fRetimeRegs; // enables min-register retiming at the beginning int fFraiging; // enables fraiging at the beginning int fInduction; // enable the use of induction int fInterpolation; // enables interpolation int fInterSeparate; // enables interpolation for each outputs separately int fReachability; // enables BDD based reachability int fReorderImage; // enables BDD reordering during image computation int fStopOnFirstFail; // enables stopping after first output of a miter has failed to prove int fUseNewProver; // the new prover int fUsePdr; // the PDR int fSilent; // disables all output int fVerbose; // enables verbose reporting of statistics int fVeryVerbose; // enables very verbose reporting int TimeLimit; // enables the timeout int fReadUnsolved; // inserts the unsolved model back int nSMnumber; // the number of model written // internal parameters int fRecursive; // set to 1 when SEC is called recursively int fReportSolution; // enables report solution in a special form }; // FRAIG equivalence classes struct Fra_Cla_t_ { Aig_Man_t * pAig; // the original AIG manager Aig_Obj_t ** pMemRepr; // pointers to representatives of each node Vec_Ptr_t * vClasses; // equivalence classes Vec_Ptr_t * vClasses1; // equivalence class of Const1 node Vec_Ptr_t * vClassesTemp; // temporary storage for new classes Aig_Obj_t ** pMemClasses; // memory allocated for equivalence classes Aig_Obj_t ** pMemClassesFree; // memory allocated for equivalence classes to be used Vec_Ptr_t * vClassOld; // old equivalence class after splitting Vec_Ptr_t * vClassNew; // new equivalence class(es) after splitting int nPairs; // the number of pairs of nodes int fRefinement; // set to 1 when refinement has happened Vec_Int_t * vImps; // implications // procedures used for class refinement int (*pFuncNodeHash) (Aig_Obj_t *, int); // returns has key of the node int (*pFuncNodeIsConst) (Aig_Obj_t *); // returns 1 if the node is a constant int (*pFuncNodesAreEqual)(Aig_Obj_t *, Aig_Obj_t *); // returns 1 if nodes are equal up to a complement }; // simulation manager struct Fra_Sml_t_ { Aig_Man_t * pAig; // the original AIG manager int nPref; // the number of times frames in the prefix int nFrames; // the number of times frames int nWordsFrame; // the number of words in each time frame int nWordsTotal; // the total number of words at a node int nWordsPref; // the number of word in the prefix int fNonConstOut; // have seen a non-const-0 output during simulation int nSimRounds; // statistics int timeSim; // statistics unsigned pData[0]; // simulation data for the nodes }; // FRAIG manager struct Fra_Man_t_ { // high-level data Fra_Par_t * pPars; // parameters governing fraiging // AIG managers Aig_Man_t * pManAig; // the starting AIG manager Aig_Man_t * pManFraig; // the final AIG manager // mapping AIG into FRAIG int nFramesAll; // the number of timeframes used Aig_Obj_t ** pMemFraig; // memory allocated for points to the fraig nodes int nSizeAlloc; // allocated size of the arrays for timeframe nodes // equivalence classes Fra_Cla_t * pCla; // representation of (candidate) equivalent nodes // simulation info Fra_Sml_t * pSml; // simulation manager // bounded model checking manager Fra_Bmc_t * pBmc; // counter example storage int nPatWords; // the number of words in the counter example unsigned * pPatWords; // the counter example Vec_Int_t * vCex; // one-hotness conditions Vec_Int_t * vOneHots; // satisfiability solving sat_solver * pSat; // SAT solver int nSatVars; // the number of variables currently used Vec_Ptr_t * vPiVars; // the PIs of the cone used ABC_INT64_T nBTLimitGlobal; // resource limit ABC_INT64_T nInsLimitGlobal; // resource limit Vec_Ptr_t ** pMemFanins; // the arrays of fanins for some FRAIG nodes int * pMemSatNums; // the array of SAT numbers for some FRAIG nodes int nMemAlloc; // allocated size of the arrays for FRAIG varnums and fanins Vec_Ptr_t * vTimeouts; // the nodes, for which equivalence checking timed out // statistics int nSimRounds; int nNodesMiter; int nLitsBeg; int nLitsEnd; int nNodesBeg; int nNodesEnd; int nRegsBeg; int nRegsEnd; int nSatCalls; int nSatCallsSat; int nSatCallsUnsat; int nSatProof; int nSatFails; int nSatFailsReal; int nSpeculs; int nChoices; int nChoicesFake; int nSatCallsRecent; int nSatCallsSkipped; // runtime abctime timeSim; abctime timeTrav; abctime timeRwr; abctime timeSat; abctime timeSatUnsat; abctime timeSatSat; abctime timeSatFail; abctime timeRef; abctime timeTotal; abctime time1; abctime time2; }; //////////////////////////////////////////////////////////////////////// /// MACRO DEFINITIONS /// //////////////////////////////////////////////////////////////////////// static inline unsigned * Fra_ObjSim( Fra_Sml_t * p, int Id ) { return p->pData + p->nWordsTotal * Id; } static inline unsigned Fra_ObjRandomSim() { return Aig_ManRandom(0); } static inline Aig_Obj_t * Fra_ObjFraig( Aig_Obj_t * pObj, int i ) { return ((Fra_Man_t *)pObj->pData)->pMemFraig[((Fra_Man_t *)pObj->pData)->nFramesAll*pObj->Id + i]; } static inline void Fra_ObjSetFraig( Aig_Obj_t * pObj, int i, Aig_Obj_t * pNode ) { ((Fra_Man_t *)pObj->pData)->pMemFraig[((Fra_Man_t *)pObj->pData)->nFramesAll*pObj->Id + i] = pNode; } static inline Vec_Ptr_t * Fra_ObjFaninVec( Aig_Obj_t * pObj ) { return ((Fra_Man_t *)pObj->pData)->pMemFanins[pObj->Id]; } static inline void Fra_ObjSetFaninVec( Aig_Obj_t * pObj, Vec_Ptr_t * vFanins ) { ((Fra_Man_t *)pObj->pData)->pMemFanins[pObj->Id] = vFanins; } static inline int Fra_ObjSatNum( Aig_Obj_t * pObj ) { return ((Fra_Man_t *)pObj->pData)->pMemSatNums[pObj->Id]; } static inline void Fra_ObjSetSatNum( Aig_Obj_t * pObj, int Num ) { ((Fra_Man_t *)pObj->pData)->pMemSatNums[pObj->Id] = Num; } static inline Aig_Obj_t * Fra_ClassObjRepr( Aig_Obj_t * pObj ) { return ((Fra_Man_t *)pObj->pData)->pCla->pMemRepr[pObj->Id]; } static inline void Fra_ClassObjSetRepr( Aig_Obj_t * pObj, Aig_Obj_t * pNode ) { ((Fra_Man_t *)pObj->pData)->pCla->pMemRepr[pObj->Id] = pNode; } static inline Aig_Obj_t * Fra_ObjChild0Fra( Aig_Obj_t * pObj, int i ) { assert( !Aig_IsComplement(pObj) ); return Aig_ObjFanin0(pObj)? Aig_NotCond(Fra_ObjFraig(Aig_ObjFanin0(pObj),i), Aig_ObjFaninC0(pObj)) : NULL; } static inline Aig_Obj_t * Fra_ObjChild1Fra( Aig_Obj_t * pObj, int i ) { assert( !Aig_IsComplement(pObj) ); return Aig_ObjFanin1(pObj)? Aig_NotCond(Fra_ObjFraig(Aig_ObjFanin1(pObj),i), Aig_ObjFaninC1(pObj)) : NULL; } static inline int Fra_ImpLeft( int Imp ) { return Imp & 0xFFFF; } static inline int Fra_ImpRight( int Imp ) { return Imp >> 16; } static inline int Fra_ImpCreate( int Left, int Right ) { return (Right << 16) | Left; } //////////////////////////////////////////////////////////////////////// /// ITERATORS /// //////////////////////////////////////////////////////////////////////// //////////////////////////////////////////////////////////////////////// /// FUNCTION DECLARATIONS /// //////////////////////////////////////////////////////////////////////// /*=== fraCec.c ========================================================*/ extern int Fra_FraigSat( Aig_Man_t * pMan, ABC_INT64_T nConfLimit, ABC_INT64_T nInsLimit, int nLearnedStart, int nLearnedDelta, int nLearnedPerce, int fFlipBits, int fAndOuts, int fNewSolver, int fVerbose ); extern int Fra_FraigCec( Aig_Man_t ** ppAig, int nConfLimit, int fVerbose ); extern int Fra_FraigCecPartitioned( Aig_Man_t * pMan1, Aig_Man_t * pMan2, int nConfLimit, int nPartSize, int fSmart, int fVerbose ); /*=== fraClass.c ========================================================*/ extern int Fra_BmcNodeIsConst( Aig_Obj_t * pObj ); extern int Fra_BmcNodesAreEqual( Aig_Obj_t * pObj0, Aig_Obj_t * pObj1 ); extern void Fra_BmcStop( Fra_Bmc_t * p ); extern void Fra_BmcPerform( Fra_Man_t * p, int nPref, int nDepth ); extern void Fra_BmcPerformSimple( Aig_Man_t * pAig, int nFrames, int nBTLimit, int fRewrite, int fVerbose ); /*=== fraClass.c ========================================================*/ extern Fra_Cla_t * Fra_ClassesStart( Aig_Man_t * pAig ); extern void Fra_ClassesStop( Fra_Cla_t * p ); extern void Fra_ClassesCopyReprs( Fra_Cla_t * p, Vec_Ptr_t * vFailed ); extern void Fra_ClassesPrint( Fra_Cla_t * p, int fVeryVerbose ); extern void Fra_ClassesPrepare( Fra_Cla_t * p, int fLatchCorr, int nMaxLevs ); extern int Fra_ClassesRefine( Fra_Cla_t * p ); extern int Fra_ClassesRefine1( Fra_Cla_t * p, int fRefineNewClass, int * pSkipped ); extern int Fra_ClassesCountLits( Fra_Cla_t * p ); extern int Fra_ClassesCountPairs( Fra_Cla_t * p ); extern void Fra_ClassesTest( Fra_Cla_t * p, int Id1, int Id2 ); extern void Fra_ClassesLatchCorr( Fra_Man_t * p ); extern void Fra_ClassesPostprocess( Fra_Cla_t * p ); extern void Fra_ClassesSelectRepr( Fra_Cla_t * p ); extern Aig_Man_t * Fra_ClassesDeriveAig( Fra_Cla_t * p, int nFramesK ); /*=== fraCnf.c ========================================================*/ extern void Fra_CnfNodeAddToSolver( Fra_Man_t * p, Aig_Obj_t * pOld, Aig_Obj_t * pNew ); /*=== fraCore.c ========================================================*/ extern void Fra_FraigSweep( Fra_Man_t * pManAig ); extern int Fra_FraigMiterStatus( Aig_Man_t * p ); extern int Fra_FraigMiterAssertedOutput( Aig_Man_t * p ); extern Aig_Man_t * Fra_FraigPerform( Aig_Man_t * pManAig, Fra_Par_t * pPars ); extern Aig_Man_t * Fra_FraigChoice( Aig_Man_t * pManAig, int nConfMax, int nLevelMax ); extern Aig_Man_t * Fra_FraigEquivence( Aig_Man_t * pManAig, int nConfMax, int fProve ); /*=== fraHot.c ========================================================*/ extern Vec_Int_t * Fra_OneHotCompute( Fra_Man_t * p, Fra_Sml_t * pSim ); extern void Fra_OneHotAssume( Fra_Man_t * p, Vec_Int_t * vOneHots ); extern void Fra_OneHotCheck( Fra_Man_t * p, Vec_Int_t * vOneHots ); extern int Fra_OneHotRefineUsingCex( Fra_Man_t * p, Vec_Int_t * vOneHots ); extern int Fra_OneHotCount( Fra_Man_t * p, Vec_Int_t * vOneHots ); extern void Fra_OneHotEstimateCoverage( Fra_Man_t * p, Vec_Int_t * vOneHots ); extern Aig_Man_t * Fra_OneHotCreateExdc( Fra_Man_t * p, Vec_Int_t * vOneHots ); extern void Fra_OneHotAddKnownConstraint( Fra_Man_t * p, Vec_Ptr_t * vOnehots ); /*=== fraImp.c ========================================================*/ extern Vec_Int_t * Fra_ImpDerive( Fra_Man_t * p, int nImpMaxLimit, int nImpUseLimit, int fLatchCorr ); extern void Fra_ImpAddToSolver( Fra_Man_t * p, Vec_Int_t * vImps, int * pSatVarNums ); extern int Fra_ImpCheckForNode( Fra_Man_t * p, Vec_Int_t * vImps, Aig_Obj_t * pNode, int Pos ); extern int Fra_ImpRefineUsingCex( Fra_Man_t * p, Vec_Int_t * vImps ); extern void Fra_ImpCompactArray( Vec_Int_t * vImps ); extern double Fra_ImpComputeStateSpaceRatio( Fra_Man_t * p ); extern int Fra_ImpVerifyUsingSimulation( Fra_Man_t * p ); extern void Fra_ImpRecordInManager( Fra_Man_t * p, Aig_Man_t * pNew ); /*=== fraInd.c ========================================================*/ extern Aig_Man_t * Fra_FraigInduction( Aig_Man_t * p, Fra_Ssw_t * pPars ); /*=== fraIndVer.c =====================================================*/ extern int Fra_InvariantVerify( Aig_Man_t * p, int nFrames, Vec_Int_t * vClauses, Vec_Int_t * vLits ); /*=== fraLcr.c ========================================================*/ extern Aig_Man_t * Fra_FraigLatchCorrespondence( Aig_Man_t * pAig, int nFramesP, int nConfMax, int fProve, int fVerbose, int * pnIter, float TimeLimit ); /*=== fraMan.c ========================================================*/ extern void Fra_ParamsDefault( Fra_Par_t * pParams ); extern void Fra_ParamsDefaultSeq( Fra_Par_t * pParams ); extern Fra_Man_t * Fra_ManStart( Aig_Man_t * pManAig, Fra_Par_t * pParams ); extern void Fra_ManClean( Fra_Man_t * p, int nNodesMax ); extern Aig_Man_t * Fra_ManPrepareComb( Fra_Man_t * p ); extern void Fra_ManFinalizeComb( Fra_Man_t * p ); extern void Fra_ManStop( Fra_Man_t * p ); extern void Fra_ManPrint( Fra_Man_t * p ); /*=== fraSat.c ========================================================*/ extern int Fra_NodesAreEquiv( Fra_Man_t * p, Aig_Obj_t * pOld, Aig_Obj_t * pNew ); extern int Fra_NodesAreImp( Fra_Man_t * p, Aig_Obj_t * pOld, Aig_Obj_t * pNew, int fComplL, int fComplR ); extern int Fra_NodesAreClause( Fra_Man_t * p, Aig_Obj_t * pOld, Aig_Obj_t * pNew, int fComplL, int fComplR ); extern int Fra_NodeIsConst( Fra_Man_t * p, Aig_Obj_t * pNew ); /*=== fraSec.c ========================================================*/ extern void Fra_SecSetDefaultParams( Fra_Sec_t * p ); extern int Fra_FraigSec( Aig_Man_t * p, Fra_Sec_t * pParSec, Aig_Man_t ** ppResult ); /*=== fraSim.c ========================================================*/ extern int Fra_SmlNodeHash( Aig_Obj_t * pObj, int nTableSize ); extern int Fra_SmlNodeIsConst( Aig_Obj_t * pObj ); extern int Fra_SmlNodesAreEqual( Aig_Obj_t * pObj0, Aig_Obj_t * pObj1 ); extern int Fra_SmlNodeNotEquWeight( Fra_Sml_t * p, int Left, int Right ); extern int Fra_SmlNodeCountOnes( Fra_Sml_t * p, Aig_Obj_t * pObj ); extern int Fra_SmlCheckOutput( Fra_Man_t * p ); extern void Fra_SmlSavePattern( Fra_Man_t * p ); extern void Fra_SmlSimulate( Fra_Man_t * p, int fInit ); extern void Fra_SmlResimulate( Fra_Man_t * p ); extern Fra_Sml_t * Fra_SmlStart( Aig_Man_t * pAig, int nPref, int nFrames, int nWordsFrame ); extern void Fra_SmlStop( Fra_Sml_t * p ); extern Fra_Sml_t * Fra_SmlSimulateComb( Aig_Man_t * pAig, int nWords, int fCheckMiter ); extern Fra_Sml_t * Fra_SmlSimulateCombGiven( Aig_Man_t * pAig, char * pFileName, int fCheckMiter, int fVerbose ); extern Fra_Sml_t * Fra_SmlSimulateSeq( Aig_Man_t * pAig, int nPref, int nFrames, int nWords, int fCheckMiter ); extern Abc_Cex_t * Fra_SmlGetCounterExample( Fra_Sml_t * p ); extern Abc_Cex_t * Fra_SmlCopyCounterExample( Aig_Man_t * pAig, Aig_Man_t * pFrames, int * pModel ); ABC_NAMESPACE_HEADER_END #endif //////////////////////////////////////////////////////////////////////// /// END OF FILE /// ////////////////////////////////////////////////////////////////////////