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fix crash during cancelation

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2018-06-24 15:29:40 -07:00
parent 61c25fdc8e
commit c32bfb5ecd
1 changed files with 1 additions and 1 deletions
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2
src/muz/spacer/spacer_context.cpp
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@ -1347,7 +1347,7 @@ lbool pred_transformer::is_reachable(pob& n, expr_ref_vector* core,
if (is_sat == l_true || is_sat == l_undef) {
if (core) { core->reset(); }
if (model) {
if (model && *model) {
r = find_rule(**model, is_concrete, reach_pred_used, num_reuse_reach);
TRACE ("spacer", tout << "reachable "
<< "is_concrete " << is_concrete << " rused: ";