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change to iterative unfolding left build broken for some time

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2020-05-26 21:25:53 -07:00
parent 9764007c97
commit 94ffd63b51
3 changed files with 11 additions and 5 deletions
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src/smt/theory_seq.cpp
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@ -3509,7 +3509,8 @@ bool theory_seq::should_research(expr_ref_vector & unsat_core) {
if (k_min < UINT_MAX) {
m_max_unfolding_depth++;
k_min *= 2;
k_min = std::max(m_util.str.min_length(s_min), k_min);
if (m_util.is_seq(s_min))
k_min = std::max(m_util.str.min_length(s_min), k_min);
IF_VERBOSE(1, verbose_stream() << "(smt.seq :increase-length " << mk_pp(s_min, m) << " " << k_min << ")\n");
add_length_limit(s_min, k_min, false);
return true;