Abstract
Parametric timed automata (PTAs) allow to reason on systems featuring concurrency and timing constraints making use of parameters. Most problems are undecidable for PTAs, including the parametric reachability emptiness problem, i.e., whether at least one parameter valuation allows to reach some discrete state. In this paper, we first exhibit a subclass of PTAs (namely integer-points PTAs) with bounded rational-valued parameters for which the parametric reachability emptiness problem is decidable. Second, we present further results improving the boundary between decidability and undecidability for PTAs and their subclasses.
This work is partially supported by the ANR national research program “PACS” (ANR-14-CE28-0002).
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Notes
- 1.
The bounded integer PTAs of [14] are arguably a trivial such subclass (even though the associated analysis techniques are not).
References
Alur, R., Dill, D.L.: A theory of timed automata. TCS 126(2), 183–235 (1994)
Alur, R., Henzinger, T.A., Vardi, M.Y.: Parametric real-time reasoning. In: STOC, pp. 592–601. ACM (1993)
André, É.: What’s decidable about parametric timed automata? In: Ölveczky, P.C., Artho, C. (eds.) Formal Techniques for Safety-Critical Systems. CCIS, vol. 596, pp. 1–17. Springer, Heidelberg (2015)
André, É., Chatain, T., Encrenaz, E., Fribourg, L.: An inverse method for parametric timed automata. IJFCS 20(5), 819–836 (2009)
André, É., Lime, D.: Liveness in L/U-parametric timed automata (2016, submitted). https://hal.archives-ouvertes.fr/hal-01304232
André, É., Lime, D., Roux, O.H.: Integer-complete synthesis for bounded parametric timed automata. In: Bojanczyk, M., et al. (eds.) RP 2015. LNCS, vol. 9328, pp. 7–19. Springer, Heidelberg (2015). doi:10.1007/978-3-319-24537-9_2
André, É., Lime, D., Roux, O.H.: On the expressiveness of parametric timed automata. In: Fränzle, M., Markey, N. (eds.) FORMATS 2016. LNCS, vol. 9884, pp. 19–34. Springer, Heidelberg (2016). doi:10.1007/978-3-319-44878-7_2
Beneš, N., Bezděk, P., Larsen, K.G., Srba, J.: Language emptiness of continuous-time parametric timed automata. In: Halldórsson, M.M., Iwama, K., Kobayashi, N., Speckmann, B. (eds.) ICALP 2015. LNCS, vol. 9135, pp. 69–81. Springer, Heidelberg (2015)
Bengtsson, J.E., Yi, W.: Timed automata: semantics, algorithms and tools. In: Desel, J., Reisig, W., Rozenberg, G. (eds.) Lectures on Concurrency and Petri Nets. LNCS, vol. 3098, pp. 87–124. Springer, Heidelberg (2004)
Bozzelli, L., La Torre, S.: Decision problems for lower/upper bound parametric timed automata. Formal Methods Syst. Des. 35(2), 121–151 (2009)
Doyen, L.: Robust parametric reachability for timed automata. Inf. Process. Lett. 102(5), 208–213 (2007)
Henzinger, T., Kopke, P., Puri, A., Varaiya, P.: What’s decidable about hybrid automata? J. Comput. Syst. Sci. 57, 94–124 (1998)
Hune, T., Romijn, J., Stoelinga, M., Vaandrager, F.W.: Linear parametric model checking of timed automata. JLAP 52–53, 183–220 (2002)
Jovanović, A., Lime, D., Roux, O.H.: Integer parameter synthesis for timed automata. Trans. Softw. Eng. 41(5), 445–461 (2015)
Miller, J.S.: Decidability and complexity results for timed automata and semi-linear hybrid automata. In: Lynch, N.A., Krogh, B.H. (eds.) HSCC 2000. LNCS, vol. 1790, pp. 296–309. Springer, Heidelberg (2000)
Minsky, M.L.: Computation: Finite and Infinite Machines. Prentice-Hall Inc., Upper Saddle River (1967)
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André, É., Lime, D., Roux, O.H. (2016). Decision Problems for Parametric Timed Automata. In: Ogata, K., Lawford, M., Liu, S. (eds) Formal Methods and Software Engineering. ICFEM 2016. Lecture Notes in Computer Science(), vol 10009. Springer, Cham. https://doi.org/10.1007/978-3-319-47846-3_25
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