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fixes for #2513

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2019-08-23 23:29:10 +03:00
parent de69b01e92
commit a337a51374
28 changed files with 486 additions and 144 deletions
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2
src/ast/rewriter/seq_rewriter.h
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@ -139,6 +139,8 @@ class seq_rewriter {
bool cannot_contain_prefix(expr* a, expr* b);
bool cannot_contain_suffix(expr* a, expr* b);
bool is_suffix(expr* s, expr* offset, expr* len);
bool set_empty(unsigned sz, expr* const* es, bool all, expr_ref_vector& lhs, expr_ref_vector& rhs);
bool is_subsequence(unsigned n, expr* const* l, unsigned m, expr* const* r,
expr_ref_vector& lhs, expr_ref_vector& rhs, bool& is_sat);