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arXiv · 1711.08314

Event-Clock Nested Automata

Laura Bozzelli·Aniello Murano·Adriano Peron
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Abstract

In this paper we introduce and study Event-Clock Nested Automata (ECNA), a formalism that combines Event Clock Automata (ECA) and Visibly Pushdown Automata (VPA). ECNA allow to express real-time properties over non-regular patterns of recursive programs. We prove that ECNA retain the same closure and decidability properties of ECA and VPA being closed under Boolean operations and having a decidable language-inclusion problem. In particular, we prove that emptiness, universality, and language-inclusion for ECNA are EXPTIME-complete problems. As for the expressiveness, we have that ECNA properly extend any previous attempt in the literature of combining ECA and VPA.

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Laura Bozzelli, Aniello Murano, Adriano Peron. 2017-11-22. Event-Clock Nested Automata. https://arxiv.org/abs/1711.08314

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