From bc8fa67afc9bb37c4b646d4b99efc0b0ec7d23d7 Mon Sep 17 00:00:00 2001
From: Nikolaj Bjorner <nbjorner@microsoft.com>
Date: Sat, 3 Aug 2024 09:37:14 -0700
Subject: [PATCH] #7255 #7328

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
---
 src/smt/smt_context.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/smt/smt_context.cpp b/src/smt/smt_context.cpp
index 62c7c8ddd..a01a655f3 100644
--- a/src/smt/smt_context.cpp
+++ b/src/smt/smt_context.cpp
@@ -1117,6 +1117,8 @@ namespace smt {
     */
     bool context::is_diseq(enode * n1, enode * n2) const {
         SASSERT(n1->get_sort() == n2->get_sort());
+        if (m.are_distinct(n1->get_expr(), n2->get_expr()))
+            return true;
         context * _this = const_cast<context*>(this);
         if (!m_is_diseq_tmp) {
             app * eq       = m.mk_eq(n1->get_expr(), n2->get_expr());