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z3str3: ensure top-level free variables always participate in model construction

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Murphy Berzish 2020-01-22 15:13:56 -05:00 • committed by Nikolaj Bjorner
parent 812049ca4a
commit 237adbf40c
3 changed files with 14 additions and 3 deletions
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src/smt/theory_str.h
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@ -842,6 +842,7 @@ protected:
bool finalcheck_int2str(app * a);
lbool fixed_length_model_construction(expr_ref_vector formulas, expr_ref_vector &precondition,
expr_ref_vector& free_variables,
obj_map<expr, zstring> &model, expr_ref_vector &cex);
ptr_vector<expr> fixed_length_reduce_string_term(smt::kernel & subsolver, expr * term);
bool fixed_length_get_len_value(expr * e, rational & val);