par Bordais, Benjamin;Busatto-Gaston, Damien ;Guha, Shibashis ;Raskin, Jean-François
Référence Leibniz international proceedings in informatics, 229, 115
Publication Publié, 2022-07-01
Article révisé par les pairs
Résumé : Given a Markov decision process (MDP) M and a formula Φ, the strategy synthesis problem asks if there exists a strategy σ s.t. the resulting Markov chain M[σ] satisfies Φ. This problem is known to be undecidable for the probabilistic temporal logic PCTL. We study a class of formulae that can be seen as a fragment of PCTL where a local, bounded horizon property is enforced all along an execution. Moreover, we allow for linear expressions in the probabilistic inequalities. This logic is at the frontier of decidability, depending on the type of strategies considered. In particular, strategy synthesis is decidable when strategies are deterministic while the general problem is undecidable.