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return negated literal when expression is "not"

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This commit is contained in:
Nikolaj Bjorner 2022-01-31 12:00:00 -08:00
parent 7ddfc54250
commit 4392b88718
1 changed files with 4 additions and 0 deletions
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4
src/sat/tactic/goal2sat.cpp
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@ -805,6 +805,7 @@ struct goal2sat::imp : public sat::sat_internalizer {
}
sat::literal internalize(expr* n, bool redundant) override {
bool is_not = m.is_not(n, n);
flet<bool> _top(m_top_level, false);
unsigned sz = m_result_stack.size();
(void)sz;
@ -820,6 +821,9 @@ struct goal2sat::imp : public sat::sat_internalizer {
m_map.insert(n, result.var());
m_solver.set_external(result.var());
}
if (is_not)
result.neg();
return result;
}