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fix gc

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2018-09-10 17:20:40 -07:00
parent 1e4681e0bc
commit 445546b684
1 changed files with 3 additions and 1 deletions
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4
src/sat/ba_solver.cpp
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@ -1570,6 +1570,7 @@ namespace sat {
++m_stats.m_num_resolves; ++m_stats.m_num_resolves;
ext_justification_idx index = js.get_ext_justification_idx(); ext_justification_idx index = js.get_ext_justification_idx();
constraint& cnstr = index2constraint(index); constraint& cnstr = index2constraint(index);
SASSERT(!cnstr.was_removed());
switch (cnstr.tag()) { switch (cnstr.tag()) {
case card_t: case card_t:
case pb_t: { case pb_t: {
@ -2660,7 +2661,8 @@ namespace sat {
} }
void ba_solver::gc() { void ba_solver::gc() {
if (m_learned.size() >= 2 * m_constraints.size()) { if (m_learned.size() >= 2 * m_constraints.size() &&
(s().at_search_lvl() || s().at_base_lvl())) {
for (auto & c : m_learned) update_psm(*c); for (auto & c : m_learned) update_psm(*c);
std::stable_sort(m_learned.begin(), m_learned.end(), constraint_glue_psm_lt()); std::stable_sort(m_learned.begin(), m_learned.end(), constraint_glue_psm_lt());
gc_half("glue-psm"); gc_half("glue-psm");