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add general purpose emptiness/non-emptiness check

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2020-05-26 20:42:21 -07:00
parent 33cdc06eb4
commit 88e36c6bf3
8 changed files with 298 additions and 65 deletions
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2
src/smt/seq_skolem.cpp
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@ -37,6 +37,8 @@ seq_skolem::seq_skolem(ast_manager& m, th_rewriter& rw):
m_seq_align = "seq.align";
m_max_unfolding = "seq.max_unfolding";
m_length_limit = "seq.length_limit";
m_is_empty = "re.is_empty";
m_is_non_empty = "re.is_non_empty";
}
expr_ref seq_skolem::mk(symbol const& s, expr* e1, expr* e2, expr* e3, expr* e4, sort* range) {