Fast algorithms for handling diagonal constraints in timed automata
Formal Languages and Automata Theory
2019-04-19 v1 Logic in Computer Science
Abstract
A popular method for solving reachability in timed automata proceeds by enumerating reachable sets of valuations represented as zones. A na\"ive enumeration of zones does not terminate. Various termination mechanisms have been studied over the years. Coming up with efficient termination mechanisms has been remarkably more challenging when the automaton has diagonal constraints in guards. In this paper, we propose a new termination mechanism for timed automata with diagonal constraints based on a new simulation relation between zones. Experiments with an implementation of this simulation show significant gains over existing methods.
Cite
@article{arxiv.1904.08590,
title = {Fast algorithms for handling diagonal constraints in timed automata},
author = {Paul Gastin and Sayan Mukherjee and B Srivathsan},
journal= {arXiv preprint arXiv:1904.08590},
year = {2019}
}
Comments
Shorter version of this article to appear in CAV 2019