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add shorthand for translating models #1407

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
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Nikolaj Bjorner 2018-01-01 19:25:09 -08:00
parent 8dadd30db5
commit f0a30ded7d
5 changed files with 48 additions and 7 deletions
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src/smt/theory_seq.cpp
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@ -3218,9 +3218,10 @@ void theory_seq::add_indexof_axiom(expr* i) {
literal t_eq_empty = mk_eq_empty(t);
// |t| = 0 => |s| = 0 or indexof(t,s,offset) = -1
// ~contains(t,s) => indexof(t,s,offset) = -1
// ~contains(t,s) <=> indexof(t,s,offset) = -1
add_axiom(cnt, i_eq_m1);
add_axiom(~cnt, ~i_eq_m1);
add_axiom(~t_eq_empty, s_eq_empty, i_eq_m1);
if (!offset || (m_autil.is_numeral(offset, r) && r.is_zero())) {