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fix crash bugs in sat solver

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2017-11-11 11:25:43 -08:00
parent c522487a86
commit a6da207b65
10 changed files with 133 additions and 43 deletions
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9
src/sat/sat_simplifier.cpp
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@ -268,19 +268,12 @@ namespace sat {
bool vars_eliminated = m_num_elim_vars > m_old_num_elim_vars;
if (m_need_cleanup) {
if (m_need_cleanup || vars_eliminated) {
TRACE("after_simplifier", tout << "cleanning watches...\n";);
cleanup_watches();
cleanup_clauses(s.m_learned, true, vars_eliminated, m_learned_in_use_lists);
cleanup_clauses(s.m_clauses, false, vars_eliminated, true);
}
else {
TRACE("after_simplifier", tout << "skipping cleanup...\n";);
if (vars_eliminated) {
// must remove learned clauses with eliminated variables
cleanup_clauses(s.m_learned, true, true, m_learned_in_use_lists);
}
}
CASSERT("sat_solver", s.check_invariant());
TRACE("after_simplifier", s.display(tout); tout << "model_converter:\n"; s.m_mc.display(tout););