Definability and computability for PRSPDL

International audiencePRSPDL is a variant of PDL with parallel composition. In the Kripke models in which PRSPDL-formulas are evaluated, states have an internal structure. We devote this paper to the definability issue of several classes of frames by means of the language of PRSPDL and to the computability issue of PRSPDL-validity for various fragments of the PRSPDL-language and for various classes of PRSPDL-frames

Deductive Verification of Concurrent Programs and its Application to Secure Information Flow for Java

Formal verification of concurrent programs still poses a major challenge in computer science. Our approach is an adaptation of the modular rely/guarantee methodology in dynamic logic. Besides functional properties, we investigate language-based security. Our verification approach extends naturally to multi-threaded Java and we present an implementation in the KeY verification system. We propose natural extensions to JML regarding both confidentiality properties and multi-threaded programs