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ensure limit children are safe for race conditions

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2015-12-12 10:18:51 -08:00
parent f8a804ba56
commit 4132fc2d91
6 changed files with 51 additions and 33 deletions
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5
src/ast/rewriter/rewriter_def.h
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@ -576,10 +576,7 @@ void rewriter_tpl<Config>::resume_core(expr_ref & result, proof_ref & result_pr)
SASSERT(!frame_stack().empty());
while (!frame_stack().empty()) {
if (m().canceled()) {
if (m().limit().cancel_flag_set()) {
throw rewriter_exception(Z3_CANCELED_MSG);
}
throw rewriter_exception(Z3_MAX_RESOURCE_MSG);
throw rewriter_exception(m().limit().get_cancel_msg());
}
SASSERT(!ProofGen || result_stack().size() == result_pr_stack().size());
frame & fr = frame_stack().back();