Team semantics for the specification and verification of hyperproperties



Krebs, A, Meier, A ORCID: 0000-0002-8061-5376, Virtema, J ORCID: 0000-0002-1582-3718 and Zimmermann, M ORCID: 0000-0002-8038-2453
(2018) Team semantics for the specification and verification of hyperproperties. .

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Abstract

We develop team semantics for Linear Temporal Logic (LTL) to express hyperproperties, which have recently been identified as a key concept in the verification of information flow properties. Conceptually, we consider an asynchronous and a synchronous variant of team semantics. We study basic properties of this new logic and classify the computational complexity of its satisfiability, path, and model checking problem. Further, we examine how extensions of these basic logics react on adding other atomic operators. Finally, we compare its expressivity to the one of HyperLTL, another recently introduced logic for hyperproperties. Our results show that LTL under team semantics is a viable alternative to HyperLTL, which complements the expressivity of HyperLTL and has partially better algorithmic properties.

Item Type: Conference or Workshop Item (Unspecified)
Depositing User: Symplectic Admin
Date Deposited: 12 Jul 2019 14:53
Last Modified: 15 Sep 2022 12:04
DOI: 10.4230/LIPIcs.MFCS.2018.10
URI: https://livrepository.liverpool.ac.uk/id/eprint/3049664