diff options
Diffstat (limited to 'src/theory/uf')
| -rw-r--r-- | src/theory/uf/theory_uf_rewriter.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/theory/uf/theory_uf_rewriter.h b/src/theory/uf/theory_uf_rewriter.h index 744a3d966..ee88df126 100644 --- a/src/theory/uf/theory_uf_rewriter.h +++ b/src/theory/uf/theory_uf_rewriter.h @@ -51,6 +51,11 @@ public: } static RewriteResponse preRewrite(TNode node) { + if(node.getKind() == kind::EQUAL || node.getKind() == kind::IFF) { + if(node[0] == node[1]) { + return RewriteResponse(REWRITE_DONE, NodeManager::currentNM()->mkConst(true)); + } + } return RewriteResponse(REWRITE_DONE, node); } |