Abstract
Alternating automata have been commonly used as a basis for static verification of reactive systems. In this paper we show how alternating automata can be used in runtime verification. We present three algorithms to check at runtime whether a reactive program satisfies a temporal specification, expressed by a linear-time temporal logic formula. The three methods start from the same alternating automaton but traverse the automaton in different ways: depth-first, breadth-first, and backwards, respectively. We then show how an extension of these algorithms, that collects statistical data while verifying the execution trace, can be used for a more detailed analysis of the runtime behavior. All three methods have been implemented and experimental results are presented.
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Finkbeiner, B., Sipma, H. Checking Finite Traces Using Alternating Automata. Formal Methods in System Design 24, 101–127 (2004). https://doi.org/10.1023/B:FORM.0000017718.28096.48
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DOI: https://doi.org/10.1023/B:FORM.0000017718.28096.48