H. Wang and U. Buy (USA)
Formal methods; Verification and validation; Petri nets; Deadlock detection; Stubborn sets; Unfolding.
Stubborn sets and model unfolding are two well-known methods for sidestepping the complexity of state-space ex ploration based on formal models of concurrent programs, such as Labeled Transition Systems and Petri nets. Here we define a deadlock detection strategy that combines these two methods. We also show that the resulting method, stub born unfoldings, can produce smaller state space represen tations than both previous methods.
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