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complement regular expressions when used in negated membership constraints #1224

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
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Nikolaj Bjorner 2017-08-28 01:38:23 -07:00
parent 8542e4ae3d
commit 974eaab01c
5 changed files with 58 additions and 42 deletions
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3
src/math/automata/symbolic_automata.h
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@ -136,7 +136,8 @@ private:
//false case
curr_bv.push_back(false);
ref_t new_pred_neg(m_ba.mk_and(curr_pred, m_ba.mk_not(constraints[i])), m);
ref_t neg(m_ba.mk_not(constraints[i]), m);
ref_t new_pred_neg(m_ba.mk_and(curr_pred, neg), m);
generate_min_terms_rec(constraints, min_terms, i + 1, curr_bv, new_pred_neg);
curr_bv.pop_back();
}