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fix #3649

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2020-04-01 10:56:27 -07:00
parent 65b2037ba2
commit c6b4641050
8 changed files with 36 additions and 22 deletions
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2
src/ast/expr_substitution.cpp
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@ -66,6 +66,8 @@ std::ostream& expr_substitution::display(std::ostream& out) {
void expr_substitution::insert(expr * c, expr * def, proof * def_pr, expr_dependency * def_dep) {
obj_map<expr, expr*>::obj_map_entry * entry = m_subst.insert_if_not_there2(c, nullptr);
SASSERT(!def_pr || to_app(m_manager.get_fact(def_pr))->get_arg(0) == c);
SASSERT(!def_pr || to_app(m_manager.get_fact(def_pr))->get_arg(1) == def);
if (entry->get_data().m_value == nullptr) {
// new entry
m_manager.inc_ref(c);