fixed tests based on changes in storm

tests/storage/test_model.py

@@ -99,12 +99,18 @@ class TestSparseModel:
     def test_build_ctmc(self):
         program = stormpy.parse_prism_program(get_example_path("ctmc", "polling2.sm"), True)
         formulas = stormpy.parse_properties_for_prism_program("P=? [ F<=3 \"target\" ]", program)
-        model = stormpy.build_model(program, formulas)
+        model = stormpy.build_model(program)
         assert model.nr_states == 12
         assert model.nr_transitions == 22
         assert model.model_type == stormpy.ModelType.CTMC
         assert not model.supports_parameters
         assert type(model) is stormpy.SparseCtmc
+        model_for_formula = stormpy.build_model(program, formulas)
+        assert model_for_formula.nr_states == 1
+        assert model_for_formula.nr_transitions == 1
+        assert model_for_formula.model_type == stormpy.ModelType.CTMC
+        assert not model_for_formula.supports_parameters
+        assert type(model_for_formula) is stormpy.SparseCtmc
 
     def test_build_pomdp(self):
         program = stormpy.parse_prism_program(get_example_path("pomdp", "maze_2.prism"))
@@ -115,11 +121,11 @@ class TestSparseModel:
 
 
     def test_build_ma(self):
-        program = stormpy.parse_prism_program(get_example_path("ma", "simple.ma"))
-        formulas = stormpy.parse_properties_for_prism_program("P=? [ F<=2 s=2 ]", program)
+        program = stormpy.parse_prism_program(get_example_path("ma", "simple.ma"), False, True)
+        formulas = stormpy.parse_properties_for_prism_program("Pmax=? [ F<=2 s=2 ]", program)
         model = stormpy.build_model(program, formulas)
-        assert model.nr_states == 5
-        assert model.nr_transitions == 8
+        assert model.nr_states == 4
+        assert model.nr_transitions == 7
         assert model.model_type == stormpy.ModelType.MA
         assert not model.supports_parameters
         assert type(model) is stormpy.SparseMA