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| author | yoni206 <yoni206@users.noreply.github.com> | 2020-07-28 10:44:55 -0700 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2020-07-28 12:44:55 -0500 |
| commit | 7ad41fe71b9f7d206ee6d1c642bb7926bffea6c7 (patch) | |
| tree | fc5d9cb07fbce3a28395eb30aabb6d6633724e02 /src/smt | |
| parent | e63544462eb850a27f7b416f2f0613efb96eef1d (diff) | |
Supporting seq.nth (#4723)
This PR adds support for seq.nth operator by eliminating it during expandDefinitions, based on sub-sequences.
Tests that use this operator are also included.
Diffstat (limited to 'src/smt')
| -rw-r--r-- | src/smt/smt_engine.cpp | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/src/smt/smt_engine.cpp b/src/smt/smt_engine.cpp index c8896b621..9ff6ec6f5 100644 --- a/src/smt/smt_engine.cpp +++ b/src/smt/smt_engine.cpp @@ -2508,7 +2508,13 @@ void SmtEngine::checkModel(bool hardFailure) { Notice() << "SmtEngine::checkModel(): checking assertion " << assertion << endl; Node n = assertion; - + Node nr = Rewriter::rewrite(substitutions.apply(n)); + Trace("boolean-terms") << "n: " << n << endl; + Trace("boolean-terms") << "nr: " << nr << endl; + if (nr.isConst() && nr.getConst<bool>()) + { + continue; + } // Apply any define-funs from the problem. { unordered_map<Node, Node, NodeHashFunction> cache; |