Merge pull request #1471 from diffblue/trace1

KNOWNBUG test for trace of SMV model with module instances

Author: tautschnig

regression/smv/modules/trace1.desc

@@ -0,0 +1,21 @@
+KNOWNBUG
+trace1.smv
+--numbered-trace
+^\[.*\] AG \!a\.c\.d: REFUTED$
+^Counterexample with 2 states:$
+^b\.d@0 = FALSE$
+^a\.c\.d@0 = FALSE$
+^a\.c\.d@1 = TRUE$
+^EXIT=10$
+^SIGNAL=0$
+--
+^warning: ignoring
+^a@0 = .*$
+^b@0 = .*$
+^a.c@0 = .*$
+^a@1 = .*$
+^b@1 = .*$
+^a.c@1 = .*$
+^b.d@1 = .*$
+--
+The trace contains entries for the module instances.

regression/smv/modules/trace1.smv

@@ -0,0 +1,12 @@
+MODULE main
+  VAR a : foo;
+  VAR b : moo;
+
+SPEC AG !a.c.d
+
+MODULE foo
+  VAR c : moo;
+
+MODULE moo
+  VAR d : boolean;
+  INIT d = FALSE