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avoid disequalities from str.at axioms

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2026-05-04 16:33:12 -07:00
parent af2769dbc0
commit e242257070
2 changed files with 4 additions and 4 deletions
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4
src/ast/rewriter/seq_axioms.cpp
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@ -638,8 +638,8 @@ namespace seq {
add_clause(~i_ge_0, i_ge_len_s, mk_eq(i, len_x));
}
add_clause(i_ge_0, mk_eq(e, emp));
add_clause(~i_ge_len_s, mk_eq(e, emp));
add_clause(i_ge_0, mk_seq_eq(e, emp));
add_clause(~i_ge_len_s, mk_seq_eq(e, emp));
add_clause(~i_ge_0, i_ge_len_s, mk_eq(one, len_e));
add_clause(mk_le(len_e, 1));
}