From 661fe7eec9b4db7f86681953248a242d24754992 Mon Sep 17 00:00:00 2001
From: Nikolaj Bjorner <nbjorner@microsoft.com>
Date: Sun, 11 Aug 2013 19:10:46 -0700
Subject: [PATCH] add missing detach in coi_filter

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
---
 src/muz_qe/dl_mk_coi_filter.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/muz_qe/dl_mk_coi_filter.cpp b/src/muz_qe/dl_mk_coi_filter.cpp
index 7bbb14353..a0fc845bf 100644
--- a/src/muz_qe/dl_mk_coi_filter.cpp
+++ b/src/muz_qe/dl_mk_coi_filter.cpp
@@ -42,7 +42,7 @@ namespace datalog {
         scoped_ptr<rule_set> result1 = top_down(source);
         scoped_ptr<rule_set> result2 = bottom_up(result1?*result1:source);
         if (!result2) {
-            result2 = result1;
+            result2 = result1.detach();
         }
         return result2.detach();
     }