CARET analysis of multithreaded programs

Dynamic Pushdown Networks (DPNs) are a natural model for multithreaded programs with (recursive) procedure calls and thread creation. On the other hand, CARET is a temporal logic that allows to write linear temporal formulas while taking into account the matching between calls and returns. We consider in this paper the model-checking problem of DPNs against CARET formulas. We show that this problem can be effectively solved by a reduction to the emptiness problem of B\"uchi Dynamic Pushdown Systems. We then show that CARET model checking is also decidable for DPNs communicating with locks. Our results can, in particular, be used for the detection of concurrent malware.Comment: Pre-proceedings paper presented at the 27th International Symposium on Logic-Based Program Synthesis and Transformation (LOPSTR 2017), Namur, Belgium, 10-12 October 2017 (arXiv:1708.07854

Model checking: beyond the finite

textComputer Science

Abstract On the Analysis of Interacting Pushdown Systems

Pushdown Systems (PDSs) have become an important paradigm for program analysis. Indeed, recent work has shown a deep connection between inter-procedural dataflow analysis for sequential programs and the model checking problem for PDSs. A natural extension of this framework to the concurrent domain hinges on the, somewhat less studied, problem of model checking Interacting Pushdown Systems. In this paper, we therefore focus on the model checking of Interacting Pushdown Systems synchronizing via the standard primitives- locks, rendezvous and broadcasts, for rich classes of temporal properties- both linear and branching time. We formulate new algorithms for model checking interacting PDSs for important fragments of LTL and the Mu-Calculus. Additionally, we also delineate precisely the decidability boundary for each of the standard synchronization primitives