Skipping more tests in case of oldish z3 version.

src/test/storm/modelchecker/multiobjective/SparseMdpPcaaMultiObjectiveModelCheckerTest.cpp

@@ -96,6 +96,10 @@ TEST(SparseMdpPcaaMultiObjectiveModelCheckerTest, team3with3objectives) {
 }
 
 TEST(SparseMdpPcaaMultiObjectiveModelCheckerTest, scheduler) {
+    if (!storm::test::z3AtLeastVersion(4,8,5)) {
+        GTEST_SKIP() << "Test disabled since it triggers a bug in the installed version of z3.";
+    }
+
     storm::Environment env;
     env.modelchecker().multi().setMethod(storm::modelchecker::multiobjective::MultiObjectiveMethod::Pcaa);
     
@@ -114,6 +118,10 @@ TEST(SparseMdpPcaaMultiObjectiveModelCheckerTest, scheduler) {
 }
 
 TEST(SparseMdpPcaaMultiObjectiveModelCheckerTest, dpm) {
+    if (!storm::test::z3AtLeastVersion(4,8,5)) {
+        GTEST_SKIP() << "Test disabled since it triggers a bug in the installed version of z3.";
+    }
+
     storm::Environment env;
     env.modelchecker().multi().setMethod(storm::modelchecker::multiobjective::MultiObjectiveMethod::Pcaa);