From 997e4c77acc191a0d0b9575c435f3618d4f09ebc Mon Sep 17 00:00:00 2001 From: Alan Mishchenko Date: Mon, 9 Jul 2012 23:15:12 -0700 Subject: Performance bug fix in the SAT solver (clearing variable activity after rollback). --- src/sat/bsat/satSolver2.c | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'src/sat/bsat/satSolver2.c') diff --git a/src/sat/bsat/satSolver2.c b/src/sat/bsat/satSolver2.c index 631051e0..45d23548 100644 --- a/src/sat/bsat/satSolver2.c +++ b/src/sat/bsat/satSolver2.c @@ -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; -- cgit v1.2.3