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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2020-04-23 21:28:19 -07:00
parent 9c3f0190f4
commit cc8cd2cc2f
4 changed files with 58 additions and 60 deletions
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13
src/ast/rewriter/seq_rewriter.h
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@ -174,10 +174,9 @@ class seq_rewriter {
bool sign_is_determined(expr* len, sign& s);
bool set_empty(unsigned sz, expr* const* es, bool all, expr_ref_pair_vector& eqs);
bool reduce_subsequence(expr_ref_vector& ls, expr_ref_vector& rs, expr_ref_pair_vector& eqs, bool& change);
bool reduce_by_length(expr_ref_vector& ls, expr_ref_vector& rs, expr_ref_pair_vector& eqs, bool& change);
bool reduce_itos(expr_ref_vector& ls, expr_ref_vector& rs, expr_ref_pair_vector& eqs, bool& change);
bool solve_itos(expr* n, expr_ref_vector const& es, expr_ref_pair_vector& eqs);
bool reduce_subsequence(expr_ref_vector& ls, expr_ref_vector& rs, expr_ref_pair_vector& eqs);
bool reduce_by_length(expr_ref_vector& ls, expr_ref_vector& rs, expr_ref_pair_vector& eqs);
bool reduce_itos(expr_ref_vector& ls, expr_ref_vector& rs, expr_ref_pair_vector& eqs);
bool min_length(expr_ref_vector const& es, unsigned& len);
expr* concat_non_empty(expr_ref_vector& es);
@ -188,9 +187,9 @@ class seq_rewriter {
bool is_sequence(eautomaton& aut, expr_ref_vector& seq);
bool is_epsilon(expr* e) const;
bool get_lengths(expr* e, expr_ref_vector& lens, rational& pos);
bool reduce_back(expr_ref_vector& ls, expr_ref_vector& rs, expr_ref_pair_vector& new_eqs, bool& change);
bool reduce_front(expr_ref_vector& ls, expr_ref_vector& rs, expr_ref_pair_vector& new_eqs, bool& change);
void remove_empty(expr_ref_vector& es);
bool reduce_back(expr_ref_vector& ls, expr_ref_vector& rs, expr_ref_pair_vector& new_eqs);
bool reduce_front(expr_ref_vector& ls, expr_ref_vector& rs, expr_ref_pair_vector& new_eqs);
void remove_empty_and_concats(expr_ref_vector& es);
void remove_leading(unsigned n, expr_ref_vector& es);
public: