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fix #3824

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2020-04-07 11:40:12 -07:00
parent 87a2a3410c
commit 6d6881c87a
1 changed files with 4 additions and 0 deletions
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4
src/muz/bmc/dl_bmc_engine.cpp
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@ -518,6 +518,10 @@ namespace datalog {
b.m_rule_trace.push_back(r);
rm.to_formula(*r, fml);
IF_VERBOSE(1, verbose_stream() << mk_pp(fml, m) << "\n";);
if (!r->get_proof()) {
IF_VERBOSE(0, r->display(b.m_ctx, verbose_stream() << "no proof associated with rule"));
throw default_exception("no proof associated with rule");
}
prs.push_back(r->get_proof());
unsigned sz = r->get_uninterpreted_tail_size();