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Diffstat (limited to 'abc70930/src/sat/msat/msatActivity.c')
-rw-r--r-- | abc70930/src/sat/msat/msatActivity.c | 160 |
1 files changed, 0 insertions, 160 deletions
diff --git a/abc70930/src/sat/msat/msatActivity.c b/abc70930/src/sat/msat/msatActivity.c deleted file mode 100644 index 1cd795bd..00000000 --- a/abc70930/src/sat/msat/msatActivity.c +++ /dev/null @@ -1,160 +0,0 @@ -/**CFile**************************************************************** - - FileName [msatActivity.c] - - PackageName [A C version of SAT solver MINISAT, originally developed - in C++ by Niklas Een and Niklas Sorensson, Chalmers University of - Technology, Sweden: http://www.cs.chalmers.se/~een/Satzoo.] - - Synopsis [Procedures controlling activity of variables and clauses.] - - Author [Alan Mishchenko <alanmi@eecs.berkeley.edu>] - - Affiliation [UC Berkeley] - - Date [Ver. 1.0. Started - January 1, 2004.] - - Revision [$Id: msatActivity.c,v 1.0 2004/01/01 1:00:00 alanmi Exp $] - -***********************************************************************/ - -#include "msatInt.h" - -//////////////////////////////////////////////////////////////////////// -/// DECLARATIONS /// -//////////////////////////////////////////////////////////////////////// - -//////////////////////////////////////////////////////////////////////// -/// FUNCTION DEFINITIONS /// -//////////////////////////////////////////////////////////////////////// - -/**Function************************************************************* - - Synopsis [] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -void Msat_SolverVarBumpActivity( Msat_Solver_t * p, Msat_Lit_t Lit ) -{ - Msat_Var_t Var; - if ( p->dVarDecay < 0 ) // (negative decay means static variable order -- don't bump) - return; - Var = MSAT_LIT2VAR(Lit); - p->pdActivity[Var] += p->dVarInc; -// p->pdActivity[Var] += p->dVarInc * p->pFactors[Var]; - if ( p->pdActivity[Var] > 1e100 ) - Msat_SolverVarRescaleActivity( p ); - Msat_OrderUpdate( p->pOrder, Var ); -} - -/**Function************************************************************* - - Synopsis [] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -void Msat_SolverVarDecayActivity( Msat_Solver_t * p ) -{ - if ( p->dVarDecay >= 0 ) - p->dVarInc *= p->dVarDecay; -} - -/**Function************************************************************* - - Synopsis [Divide all variable activities by 1e100.] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -void Msat_SolverVarRescaleActivity( Msat_Solver_t * p ) -{ - int i; - for ( i = 0; i < p->nVars; i++ ) - p->pdActivity[i] *= 1e-100; - p->dVarInc *= 1e-100; -} - -/**Function************************************************************* - - Synopsis [] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -void Msat_SolverClaBumpActivity( Msat_Solver_t * p, Msat_Clause_t * pC ) -{ - float Activ; - Activ = Msat_ClauseReadActivity(pC); - if ( Activ + p->dClaInc > 1e20 ) - { - Msat_SolverClaRescaleActivity( p ); - Activ = Msat_ClauseReadActivity( pC ); - } - Msat_ClauseWriteActivity( pC, Activ + (float)p->dClaInc ); -} - -/**Function************************************************************* - - Synopsis [] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -void Msat_SolverClaDecayActivity( Msat_Solver_t * p ) -{ - p->dClaInc *= p->dClaDecay; -} - -/**Function************************************************************* - - Synopsis [Divide all constraint activities by 1e20.] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -void Msat_SolverClaRescaleActivity( Msat_Solver_t * p ) -{ - Msat_Clause_t ** pLearned; - int nLearned, i; - float Activ; - nLearned = Msat_ClauseVecReadSize( p->vLearned ); - pLearned = Msat_ClauseVecReadArray( p->vLearned ); - for ( i = 0; i < nLearned; i++ ) - { - Activ = Msat_ClauseReadActivity( pLearned[i] ); - Msat_ClauseWriteActivity( pLearned[i], Activ * (float)1e-20 ); - } - p->dClaInc *= 1e-20; -} - -//////////////////////////////////////////////////////////////////////// -/// END OF FILE /// -//////////////////////////////////////////////////////////////////////// - - |