diff --git a/tests/results.txt b/tests/results.txt
index 32ae84f1b..f1c641204 100644
--- a/tests/results.txt
+++ b/tests/results.txt
@@ -405,7 +405,7 @@ T_556prores:cefc5f55889463321b03075bcf9f5e7b-5fbfaf0b69674d62d4edb2e3d1f05eb4-42
 T_557dts_hd_ma_xll_extension:96000-192000-7f61832d35165f4600c0ac06b3a109dc-7f61832d35165f4600c0ac06b3a109dc:passed:20160810-203155:1.196256604
 T_558segfaults_issue_1780_part_1:error-error-error-error-error:passed:20160906-210126:0.035867258
 T_559segfaults_issue_1780_part_2:error-error-error-error-error-error-error-error-error-error-error-error-error-error-error-error-error-error-error-error-error-error-error-error-error-error-error-error:passed:20160906-225430:0.206571838
-T_560segfaults_issue_1780_part_3:0489485fc50810d2c60f480348ed4f98-0489485fc50810d2c60f480348ed4f98-0489485fc50810d2c60f480348ed4f98-0489485fc50810d2c60f480348ed4f98-0489485fc50810d2c60f480348ed4f98-0489485fc50810d2c60f480348ed4f98-0489485fc50810d2c60f480348ed4f98-b21ab40761d8b1bbf3f0e56f93cc3b9b-912643da6854328e5fbd5c2be062e2d4-0489485fc50810d2c60f480348ed4f98-6419cd823516f4f0f61ba6bf08fe8897-b400b47306ae8b4ca48ec43444336b5a-c64dcaf5f603f78524fb88b012c9ea5b-0489485fc50810d2c60f480348ed4f98-a4804262c5ca204ef138510263fb853f-49c8bafe5be3fee7f72bb82da798fba8-87a837d6a523dbf906cef7bcb3f3bcfd-87a837d6a523dbf906cef7bcb3f3bcfd-87a837d6a523dbf906cef7bcb3f3bcfd-87a837d6a523dbf906cef7bcb3f3bcfd-87a837d6a523dbf906cef7bcb3f3bcfd:passed:20160906-225653:0.203842645
+T_560segfaults_issue_1780_part_3:0489485fc50810d2c60f480348ed4f98-0489485fc50810d2c60f480348ed4f98-0489485fc50810d2c60f480348ed4f98-0489485fc50810d2c60f480348ed4f98-0489485fc50810d2c60f480348ed4f98-0489485fc50810d2c60f480348ed4f98-0489485fc50810d2c60f480348ed4f98-b21ab40761d8b1bbf3f0e56f93cc3b9b-912643da6854328e5fbd5c2be062e2d4-0489485fc50810d2c60f480348ed4f98-6419cd823516f4f0f61ba6bf08fe8897-b400b47306ae8b4ca48ec43444336b5a-c64dcaf5f603f78524fb88b012c9ea5b-0489485fc50810d2c60f480348ed4f98-49c8bafe5be3fee7f72bb82da798fba8-87a837d6a523dbf906cef7bcb3f3bcfd-87a837d6a523dbf906cef7bcb3f3bcfd-87a837d6a523dbf906cef7bcb3f3bcfd-87a837d6a523dbf906cef7bcb3f3bcfd-87a837d6a523dbf906cef7bcb3f3bcfd-ok:passed:20160906-225653:0.203842645
 T_561segfaults_issue_1780_part_4:error:passed:20160906-225808:0.007751455
-T_562segfaults_issue_1780_part_5:error-4615f1926ab4f0ba2c475f0a6679e75e-23cc72d092c69b611a33d000971e8a4c:passed:20160906-225922:0.023945323
+T_562segfaults_issue_1780_part_5:error-4615f1926ab4f0ba2c475f0a6679e75e-warning:passed:20160906-225922:0.023945323
 T_563segfaults_issue_1780_part_6:error-error:passed:20160906-230017:0.014380789
diff --git a/tests/test-560segfaults_issue_1780_part_3.rb b/tests/test-560segfaults_issue_1780_part_3.rb
index 1b276ab28..1498df8d4 100755
--- a/tests/test-560segfaults_issue_1780_part_3.rb
+++ b/tests/test-560segfaults_issue_1780_part_3.rb
@@ -21,7 +21,6 @@ explorer:id:000144,sig:11,src:000005,op:flip2,pos:13866
 explorer:id:000231,sig:11,src:000005,op:havoc,rep:16
 explorer:id:000261,sig:11,src:000013,op:arith8,pos:13647,val:+7
 explorer:id:000318,sig:11,src:000287,op:flip2,pos:13797
-explorer:id:000323,sig:06,src:000314,op:flip1,pos:13731
 explorer:id:000324,sig:06,src:000314,op:havoc,rep:64
 explorer:id:000347,sig:06,src:000426,op:flip1,pos:13797
 explorer:id:000353,sig:11,src:000426,op:flip1,pos:13823
@@ -31,3 +30,11 @@ explorer:id:000358,sig:06,src:000426,op:flip2,pos:13826
 }.each do |file|
   test_merge "#{dir}/#{file}"
 end
+
+# The following files cause uninitialized memory to be written and
+# consecutive tests to fail:
+%w{
+explorer:id:000323,sig:06,src:000314,op:flip1,pos:13731
+}.each do |file|
+  test_merge "#{dir}/#{file}", :result_type => :exit_code_string
+end
diff --git a/tests/test-562segfaults_issue_1780_part_5.rb b/tests/test-562segfaults_issue_1780_part_5.rb
index f038d3db5..f292de6ea 100755
--- a/tests/test-562segfaults_issue_1780_part_5.rb
+++ b/tests/test-562segfaults_issue_1780_part_5.rb
@@ -8,4 +8,4 @@ dir = "data/segfaults-assertions/issue-1780"
 # "MP4 reader: properly catch invalid chunk size exception"
 test_merge "#{dir}/explorer:id:000081,sig:06,src:000001,op:havoc,rep:128",   :exit_code => :error
 test_merge "#{dir}/explorer:id:000233,sig:06,src:000005,op:havoc,rep:16",    :exit_code => :warning
-test_merge "#{dir}/explorer:id:000241,sig:11,src:000012,op:flip1,pos:13674", :exit_code => :warning
+test_merge "#{dir}/explorer:id:000241,sig:11,src:000012,op:flip1,pos:13674", :exit_code => :warning, :result_type => :exit_code_string