We study the reactive synthesis problem (RS) for specifications given in Metric Interval Temporal Logic (MITL). RS is known to be undecidable in a very general setting, but on infinite words only; and only the very restrictive BResRS subcase is known to be decidable (see D’Souza et al. and Bouyer et al.). In this paper, we sharpen the decidability border of MITL synthesis. We show RS is undecidable on finite words too, and present a landscape of restrictions (both on the logic and on the possible controllers) that are still undecidable. On the positive side, we revisit BResRS and introduce an efficient on-the-fly algorithm to solve it.
CITATION STYLE
Brihaye, T., Estiévenart, M., Geeraerts, G., Ho, H. M., Monmege, B., & Sznajder, N. (2016). Real-time synthesis is hard! In Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) (Vol. 9884 LNCS, pp. 105–120). Springer Verlag. https://doi.org/10.1007/978-3-319-44878-7_7
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