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#5528

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This commit is contained in:
Nikolaj Bjorner 2021-09-01 11:34:44 -07:00
parent f91c3d9fd6
commit a3ba4e1366
1 changed files with 11 additions and 9 deletions
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20
src/sat/smt/q_eval.cpp
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@ -181,23 +181,25 @@ namespace q {
while (!todo.empty()) { while (!todo.empty()) {
expr* t = todo.back(); expr* t = todo.back();
SASSERT(!is_ground(t) || ctx.get_egraph().find(t)); SASSERT(!is_ground(t) || ctx.get_egraph().find(t));
if (is_ground(t) || (has_quantifiers(t) && !has_free_vars(t))) {
m_mark.mark(t);
m_eval.setx(t->get_id(), ctx.get_egraph().find(t), nullptr);
if (!m_eval[t->get_id()])
return nullptr;
todo.pop_back();
continue;
}
if (m_mark.is_marked(t)) { if (m_mark.is_marked(t)) {
todo.pop_back(); todo.pop_back();
continue; continue;
} }
if (is_var(t)) { if (is_ground(t) || (has_quantifiers(t) && !has_free_vars(t))) {
m_eval.setx(t->get_id(), ctx.get_egraph().find(t), nullptr);
if (!m_eval[t->get_id()])
return nullptr;
m_mark.mark(t); m_mark.mark(t);
todo.pop_back();
continue;
}
if (is_var(t)) {
if (to_var(t)->get_idx() >= n) if (to_var(t)->get_idx() >= n)
return nullptr; return nullptr;
m_eval.setx(t->get_id(), binding[n - 1 - to_var(t)->get_idx()], nullptr); m_eval.setx(t->get_id(), binding[n - 1 - to_var(t)->get_idx()], nullptr);
if (!m_eval[t->get_id()])
return nullptr;
m_mark.mark(t);
todo.pop_back(); todo.pop_back();
continue; continue;
} }