Create paths-lifo-expected-failure tag for tests

Test which rely on convergence will not work with path-symex

Author: Owen

regression/cbmc/CMakeLists.txt

@@ -5,7 +5,7 @@ add_test_pl_tests(
 add_test_pl_profile(
     "cbmc-paths-lifo"
     "$<TARGET_FILE:cbmc> --paths lifo"
-    "-C;-X;thorough-paths;-X;smt-backend;-s;paths-lifo"
+    "-C;-X;thorough-paths;-X;smt-backend;-X;paths-lifo-expected-failure;-s;paths-lifo"
     "CORE"
 )
 

regression/cbmc/Makefile

@@ -7,7 +7,7 @@ test-cprover-smt2:
 	@../test.pl -e -p -c "../../../src/cbmc/cbmc --cprover-smt2" -X broken-smt-backend
 
 test-paths-lifo:
-	@../test.pl -e -p -c "../../../src/cbmc/cbmc --paths lifo" -X thorough-paths -X smt-backend
+	@../test.pl -e -p -c "../../../src/cbmc/cbmc --paths lifo" -X thorough-paths -X smt-backend -X paths-lifo-expected-failure
 
 tests.log: ../test.pl test