Section: New Software and Platforms

AstréeA

The AstréeA Static Analyzer of Asynchronous Software

Keywords: Static analysis - Static program analysis

Scientific Description: AstréeA analyzes C programs composed of a fixed set of threads that communicate through a shared memory and synchronization primitives (mutexes, FIFOs, blackboards, etc.), but without recursion nor dynamic creation of memory, threads nor synchronization objects. AstréeA assumes a real-time scheduler, where thread scheduling strictly obeys the fixed priority of threads. Our model follows the ARINC 653 OS specification used in embedded industrial aeronautic software. Additionally, AstréeA employs a weakly-consistent memory semantics to model memory accesses not protected by a mutex, in order to take into account soundly hardware and compiler-level program transformations (such as optimizations). AstréeA checks for the same run-time errors as Astrée , with the addition of data-races.

Functional Description: AstréeA is a static analyzer prototype for parallel software based on abstract interpretation. The AstréeA prototype is a fork of the Astrée static analyzer that adds support for analyzing parallel embedded C software.

• Participants: Antoine Miné, Jérôme Feret, Patrick Cousot, Radhia Cousot and Xavier Rival

• Partners: CNRS - ENS Paris - AbsInt Angewandte Informatik GmbH

• Contact: Patrick Cousot

• URL: http://www.astreea.ens.fr/