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fix update of bb

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2021-07-13 09:32:05 +02:00
parent e5c5caea45
commit 34677e0e7c
1 changed files with 4 additions and 3 deletions

7
src/ast/rewriter/seq_axioms.cpp
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@ -783,11 +783,12 @@ namespace seq {
ge10k = bv.mk_ule(bv.mk_numeral(pow, bv_sort), b);
}
ge10k1 = bv.mk_ule(bv.mk_numeral(pow * 10, bv_sort), b);
expr_ref_vector es(m);
expr_ref bb(b, m);
unsigned sz = bv.get_bv_size(b);
expr_ref_vector es(m);
expr_ref bb(b, m), ten(bv.mk_numeral(10, sz), m);
for (unsigned i = 0; i < k; ++i) {
es.push_back(seq.str.mk_unit(m_sk.mk_ubv2ch(bv.mk_bv_urem(bb, bv.mk_numeral(10, sz)))));
es.push_back(seq.str.mk_unit(m_sk.mk_ubv2ch(bv.mk_bv_urem(bb, ten))));
bb = bv.mk_bv_udiv(bb, ten);
}
es.reverse();
eq = m.mk_eq(seq.str.mk_ubv2s(b), seq.str.mk_concat(es, seq.str.mk_string_sort()));