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add support for default semantics for stoi (non-integer strings map to -1). Issue #670

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2016-07-08 10:45:19 -07:00
parent 0d0d504d62
commit bdbf1c9bf4
2 changed files with 28 additions and 5 deletions
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2
src/smt/theory_seq.h
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@ -308,6 +308,7 @@ namespace smt {
bool m_incomplete; // is the solver (clearly) incomplete for the fragment.
expr_ref_vector m_int_string;
rational_set m_itos_axioms;
rational_set m_stoi_axioms;
obj_hashtable<expr> m_length; // is length applied
scoped_ptr_vector<apply> m_replay; // set of actions to replay
model_generator* m_mg;
@ -493,6 +494,7 @@ namespace smt {
void add_elim_string_axiom(expr* n);
void add_at_axiom(expr* n);
void add_in_re_axiom(expr* n);
bool add_stoi_axiom(expr* n);
bool add_itos_axiom(expr* n);
void add_itos_length_axiom(expr* n);
literal mk_literal(expr* n);