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Research on CPN Model Reduction Focus on Parallel Tested Behaviors

Nowadays parallel software system is very common and practical. However, it is difficult to test parallel software, because the state space of parallel software is very large. Therefore, a parallel model simplification method based on CPN (Color Petri Net) is proposed. Based on the original CPN, the CPN model for the tested behavior(Tested Behavior of CPN, TBoCPN) is proposed. The target of the test is described as the tested behavior. The relevant behavior is described as the behavior related to the tested behavior, then, the homogeneous concurrent branch group and the selection branch set are divided. Finally, the branches of the concurrent branch group and the selected branch set, which satisfied the condition of algorithm, are sequentially processed by the inhibitor arcs. The experiment shows that the reduction rate is at least 60%, and before and after the reduction, the full coverage test path generated by the tested behavior is not affected, thus proving that the method is an effective test method.