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Real-time synthesis is hard!

par Brihaye, Thomas;Estievenart, Morgane ;Geeraerts, Gilles ;Ho, Hsi Ming;Monmege, Benjamin ;Sznajder, Nathalie
Référence Lecture notes in computer science, 9884, page (105-120)
Publication Publié, 2016

Article révisé par les pairs

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Résumé :

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.