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fix bug in tracking qhead

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This commit is contained in:
Nikolaj Bjorner 2021-01-07 17:29:14 -08:00
parent 4db41c02cc
commit 7bf691e1f9
1 changed files with 5 additions and 4 deletions
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9
src/ast/euf/euf_egraph.cpp
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@ -67,12 +67,13 @@ namespace euf {
if (m_num_scopes == 0)
return;
// DEBUG_CODE(invariant(););
for (; m_num_scopes > 0; --m_num_scopes) {
m_scopes.push_back(m_updates.size());
m_region.push_scope();
m_updates.push_back(update_record(m_new_th_eqs_qhead, update_record::new_th_eq_qhead()));
m_updates.push_back(update_record(m_new_lits_qhead, update_record::new_lits_qhead()));
}
m_updates.push_back(update_record(m_new_th_eqs_qhead, update_record::new_th_eq_qhead()));
m_updates.push_back(update_record(m_new_lits_qhead, update_record::new_lits_qhead()));
SASSERT(m_new_lits_qhead <= m_new_lits.size());
SASSERT(m_new_th_eqs_qhead <= m_new_th_eqs.size());
}
@ -109,7 +110,6 @@ namespace euf {
egraph::egraph(ast_manager& m) : m(m), m_table(m), m_exprs(m) {
m_tmp_eq = enode::mk_tmp(m_region, 2);
// m_updates.reserve(10000, update_record(nullptr));
}
egraph::~egraph() {
@ -274,7 +274,6 @@ namespace euf {
num_scopes -= m_num_scopes;
m_num_scopes = 0;
SASSERT(m_new_lits_qhead <= m_new_lits.size());
unsigned old_lim = m_scopes.size() - num_scopes;
unsigned num_updates = m_scopes[old_lim];
@ -339,8 +338,10 @@ namespace euf {
m_scopes.shrink(old_lim);
m_region.pop_scope(num_scopes);
m_to_merge.reset();
SASSERT(m_new_lits_qhead <= m_new_lits.size());
SASSERT(m_new_th_eqs_qhead <= m_new_th_eqs.size());
// DEBUG_CODE(invariant(););
}