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authorAndres Noetzli <andres.noetzli@gmail.com>2018-05-22 11:43:15 -0700
committerGitHub <noreply@github.com>2018-05-22 11:43:15 -0700
commit7b3494856e47945dd5c9774d2063f095f46fc4df (patch)
tree26b2a95e86630b87069227eedf2bd829430c746b
parentcdf7aacd6b682645cf1a2bc609db005b2f4dafc7 (diff)
Disable symmetry breaker for unsat cores (#1958)
Currently, --check-unsat-cores fails for one of our regressions. It turns out that the issue is due to preprocessing done by the symmetry breaker. The symmetry breaker does not add dependencies and thus the generated unsat core is incomplete/wrong. This commit disables the symmetry breaker when we are generating unsat cores (it was previously only disabled when generating proofs). Fixes issue #1953.
-rw-r--r--src/smt/smt_engine.cpp3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/smt/smt_engine.cpp b/src/smt/smt_engine.cpp
index 36792e3c0..e96393f11 100644
--- a/src/smt/smt_engine.cpp
+++ b/src/smt/smt_engine.cpp
@@ -1565,7 +1565,8 @@ void SmtEngine::setDefaults() {
// by default, symmetry breaker is on only for QF_UF
if(! options::ufSymmetryBreaker.wasSetByUser()) {
- bool qf_uf = d_logic.isPure(THEORY_UF) && !d_logic.isQuantified() && !options::proof();
+ bool qf_uf = d_logic.isPure(THEORY_UF) && !d_logic.isQuantified()
+ && !options::proof() && !options::unsatCores();
Trace("smt") << "setting uf symmetry breaker to " << qf_uf << endl;
options::ufSymmetryBreaker.set(qf_uf);
}
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