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enable theory propagation of regex accept condition

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2020-06-17 13:42:40 -07:00
parent be36a8fd80
commit 3b1149330d
4 changed files with 51 additions and 10 deletions
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2
src/ast/seq_decl_plugin.cpp
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@ -1325,6 +1325,8 @@ unsigned seq_util::re::min_length(expr* r) const {
return std::max(min_length(r1), min_length(r2));
if (is_loop(r, r1, lo, hi))
return u.max_mul(lo, min_length(r1));
if (is_range(r))
return 1;
if (is_to_re(r, s))
return u.str.min_length(s);
return 0;