文章基本信息

标题：Deciding Hyperproperties
本地全文：下载
作者：Bernd Finkbeiner ; Christopher Hahn
期刊名称：LIPIcs : Leibniz International Proceedings in Informatics
电子版ISSN：1868-8969
出版年度：2016
卷号：59
页码：13:1-13:14
DOI：10.4230/LIPIcs.CONCUR.2016.13
出版社：Schloss Dagstuhl -- Leibniz-Zentrum fuer Informatik
摘要：Hyperproperties, like observational determinism or symmetry, cannot be expressed as properties of individual computation traces, because they describe a relation between multiple computation traces. HyperLTL is a temporal logic that captures such relations through trace variables, which are introduced through existential and universal trace quantifiers and can be used to refer to multiple computations at the same time. In this paper, we study the satisfiability problem of HyperLTL. We show that the problem is PSPACE-complete for alternation-free formulas (and, hence, no more expensive than LTL satisfiability), EXPSPACE-complete for exists-forall-formulas, and undecidable for forall-exists-formulas. Many practical hyperproperties can be expressed as alternation-free formulas. Our results show that both satisfiability and implication are decidable for such properties.
关键词：temporal logics; satisfiability; hyperproperties; complexity