Abstract
The paper proposes an improvement for SCC-based emptiness checking algorithms,which combines the advantages of SCC-based and nested depth first search for finding a cycle meeting all sets of acceptance conditions.The new algorithm uses the method of bitstate-hashing during emptiness checking for transition-based generalized Buchi automata,and the performance outperforms that of Couvreur′s.Meanwhile,the performance for finding a counterexample is the same as that of SCC-based ones.
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