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Performance bug fix in the SAT solver (clearing variable activity after rollback).

This commit is contained in:
Alan Mishchenko 2012-07-09 23:15:12 -07:00
parent 6ba6c3279a
commit 997e4c77ac
1 changed files with 7 additions and 0 deletions
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7
src/sat/bsat/satSolver2.c
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@ -1574,8 +1574,15 @@ void sat_solver2_rollback( sat_solver2* s )
for ( i = 2*s->iVarPivot; i < 2*s->size; i++ )
s->wlists[i].size = 0;
// clear variable activity
#ifdef USE_FLOAT_ACTIVITY2
for ( i = s->iVarPivot; i < s->size; i++ )
s->activity[i] = 0;
#else
for ( i = s->iVarPivot; i < s->size; i++ )
s->activity[i] = (1<<10);
#endif
// initialize other vars
s->size = s->iVarPivot;