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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2021-12-08 12:40:44 -08:00
parent a81a00a93c
commit 8d3c3ede39
3 changed files with 11 additions and 4 deletions
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2
src/math/polysat/search_state.cpp
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@ -61,7 +61,7 @@ namespace polysat {
void search_state::pop() {
auto const& item = m_items.back();
if (item.is_assignment() && item.var() == m_assignment.back().first)
if (item.is_assignment() && !m_assignment.empty() && item.var() == m_assignment.back().first)
m_assignment.pop_back();
m_items.pop_back();
}