By using traditional UPPAAL modeling and verifying techniques (the second property in the property list), it can be found that the maximal clock value in state "Waiting" of "MSTS" is 12. But the property "sup{MSTS.Waiting}: MSTS.x" does not terminate. It is expected that the same value 12 should be obtained from its verification result. The "sup" property works fine in some other states of other templates, but the reason why it does not terminate in x.N is unknown.