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fix crash in dl_interp_tail_simplifier when no transformation is performed

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Signed-off-by: Nuno Lopes <t-nclaud@microsoft.com>
This commit is contained in:
Nuno Lopes 2013-04-10 14:49:07 -07:00
parent 5cbba08762
commit 14172d3fae
1 changed files with 3 additions and 2 deletions
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5
src/muz_qe/dl_mk_interp_tail_simplifier.cpp
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@ -583,11 +583,12 @@ namespace datalog {
} }
rule_set * res = alloc(rule_set, m_context); rule_set * res = alloc(rule_set, m_context);
if (!transform_rules(source, *res)) { if (transform_rules(source, *res)) {
res->inherit_predicates(source);
} else {
dealloc(res); dealloc(res);
res = 0; res = 0;
} }
res->inherit_predicates(source);
return res; return res;
} }