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| author | Andrew Reynolds <andrew.j.reynolds@gmail.com> | 2020-06-02 15:55:49 -0500 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2020-06-02 15:55:49 -0500 |
| commit | 6ae4eda75d5717543f7c847d4b2f58ccbbb611bf (patch) | |
| tree | e5a64cad596fa2f3f7020c9b56eafaf300919408 | |
| parent | e4926117ce53433e59f4b1a86892ea43a01f709d (diff) | |
Fix scope issue with pulling ITEs in extended rewriter. (#4547)
Fixes #4476.
| -rw-r--r-- | src/theory/quantifiers/extended_rewrite.cpp | 5 | ||||
| -rw-r--r-- | test/regress/CMakeLists.txt | 1 | ||||
| -rw-r--r-- | test/regress/regress0/quantifiers/issue4476-ext-rew.smt2 | 5 |
3 files changed, 11 insertions, 0 deletions
diff --git a/src/theory/quantifiers/extended_rewrite.cpp b/src/theory/quantifiers/extended_rewrite.cpp index 1f42c384f..8803a9df8 100644 --- a/src/theory/quantifiers/extended_rewrite.cpp +++ b/src/theory/quantifiers/extended_rewrite.cpp @@ -586,6 +586,11 @@ Node ExtendedRewriter::extendedRewriteAndOr(Node n) Node ExtendedRewriter::extendedRewritePullIte(Kind itek, Node n) { Assert(n.getKind() != ITE); + if (n.isClosure()) + { + // don't pull ITE out of quantifiers + return n; + } NodeManager* nm = NodeManager::currentNM(); TypeNode tn = n.getType(); std::vector<Node> children; diff --git a/test/regress/CMakeLists.txt b/test/regress/CMakeLists.txt index 2b587c93a..b66d4e973 100644 --- a/test/regress/CMakeLists.txt +++ b/test/regress/CMakeLists.txt @@ -740,6 +740,7 @@ set(regress_0_tests regress0/quantifiers/issue3655.smt2 regress0/quantifiers/issue4086-infs.smt2 regress0/quantifiers/issue4275-qcf-cegqi-rep.smt2 + regress0/quantifiers/issue4476-ext-rew.smt2 regress0/quantifiers/lra-triv-gn.smt2 regress0/quantifiers/macros-int-real.smt2 regress0/quantifiers/macros-real-arg.smt2 diff --git a/test/regress/regress0/quantifiers/issue4476-ext-rew.smt2 b/test/regress/regress0/quantifiers/issue4476-ext-rew.smt2 new file mode 100644 index 000000000..c54254e67 --- /dev/null +++ b/test/regress/regress0/quantifiers/issue4476-ext-rew.smt2 @@ -0,0 +1,5 @@ +(set-logic NRA) +(set-info :status sat) +(set-option :ext-rewrite-quant true) +(assert (exists ((a Real) (b Real)) (forall ((c Real)) (= (/ b (/ 1 c)) 0)))) +(check-sat) |