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fix #3105 fix #2937

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2020-03-11 14:13:12 -07:00
parent d9c09dcdf9
commit 67d19cba4a
1 changed files with 1 additions and 1 deletions
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2
src/smt/theory_seq.cpp
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@ -5704,12 +5704,12 @@ void theory_seq::add_at_axiom(expr* e) {
expr_ref xey = mk_concat(x, e, y);
expr_ref len_x = mk_len(x);
add_axiom(~i_ge_0, i_ge_len_s, mk_seq_eq(s, xey));
add_axiom(~i_ge_0, i_ge_len_s, mk_eq(one, len_e, false));
add_axiom(~i_ge_0, i_ge_len_s, mk_eq(i, len_x, false));
}
add_axiom(i_ge_0, mk_eq(e, emp, false));
add_axiom(~i_ge_len_s, mk_eq(e, emp, false));
add_axiom(~i_ge_0, i_ge_len_s, mk_eq(one, len_e, false));
add_axiom(mk_literal(m_autil.mk_le(len_e, one)));
}