Decidability Problems for Actor Systems

F. de Boer (1) , Mohammad Mahdi Jaghoori (1) , Cosimo Laneve (2, 3) , Gianluigi Zavattaro (2, 3)

1 CWI - Centrum Wiskunde & Informatica
2 DISI - Department of Computer Science and Engineering [Bologna]
3 FOCUS - Foundations of Component-based Ubiquitous Systems

We introduce a nominal actor-based language and study its expressive power. We have identified the presence/absence of fields as a crucial feature: the dynamic creation of names in combination with fields gives rise to Turing completeness. On the other hand, restricting to stateless actors gives rise to systems for which properties such as termination are decidable. This decidability result still holds for actors with states when the number of actors is bounded and the state is read-only.

Domaines: Informatique [cs]

F. de Boer, Mohammad Mahdi Jaghoori, Cosimo Laneve, Gianluigi Zavattaro. Decidability Problems for Actor Systems. Logical Methods in Computer Science, 2014, 104, pp.1 - 29. ⟨10.2168/LMCS-10(4:5)2014⟩. ⟨hal-01090952⟩