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fix model return after shutdown, reported in #4532

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2020-07-27 23:48:19 -07:00
parent b71a64365d
commit 8857a67e4f
3 changed files with 10 additions and 2 deletions
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8
src/smt/smt_context.cpp
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@ -4486,8 +4486,12 @@ namespace smt {
}
void context::get_model(model_ref & mdl) {
if (inconsistent() || !m.inc())
mdl = nullptr;
if (inconsistent())
mdl = nullptr;
else if (m_model.get())
mdl = m_model.get();
else if (!m.inc())
mdl = nullptr;
else {
mk_proto_model();
if (!m_model && m_proto_model) {