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ever so gentle slap over the fingers for not using real regular expressions, #2058

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2019-01-06 13:46:04 -08:00
parent 6f6880812b
commit a87f7a14d3
2 changed files with 10 additions and 1 deletions
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7
src/smt/theory_seq.cpp
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@ -4584,7 +4584,12 @@ void theory_seq::propagate_in_re(expr* n, bool is_true) {
IF_VERBOSE(11, verbose_stream() << mk_pp(s, m) << " in " << re << "\n");
eautomaton* a = get_automaton(re);
if (!a) return;
if (!a) {
std::stringstream strm;
strm << "expression " << re << " does not correspond to a supported regular expression";
TRACE("seq", tout << strm.str() << "\n";);
throw default_exception(strm.str());
}
m_s_in_re.push_back(s_in_re(lit, s, re, a));
m_trail_stack.push(push_back_vector<theory_seq, vector<s_in_re>>(m_s_in_re));