From 62db7642ec9028607c37edbf4e28f498f14074f2 Mon Sep 17 00:00:00 2001
From: Nikolaj Bjorner <nbjorner@microsoft.com>
Date: Thu, 14 Nov 2024 21:39:33 -0800
Subject: [PATCH] refine rewriting depth for lt constraints

---
 src/ast/rewriter/seq_rewriter.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/ast/rewriter/seq_rewriter.cpp b/src/ast/rewriter/seq_rewriter.cpp
index a811e4d8d..3ce396593 100644
--- a/src/ast/rewriter/seq_rewriter.cpp
+++ b/src/ast/rewriter/seq_rewriter.cpp
@@ -2473,7 +2473,7 @@ br_status seq_rewriter::mk_str_lt(expr* a, expr* b, expr_ref& result) {
     }
     if (str().is_empty(a)) {
         result = m().mk_not(m().mk_eq(a, b));
-        return BR_DONE;
+        return BR_REWRITE1;
     }
     if (str().is_string(a, as) && str().is_string(b, bs)) {
         unsigned sz = std::min(as.length(), bs.length());