Formal analysis and verification of self-healing systems. (English)
Rosenblum, David S. (ed.) et al., Fundamental approaches to software engineering. 13th international conference, FASE 2010, held as part of the joint European conferences on theory and practice of software, ETAPS 2010, Paphos, Cyprus, March 20‒28, 2010. Proceedings. Berlin: Springer (ISBN 978-3-642-12028-2/pbk). Lecture Notes in Computer Science 6013, 139-153 (2010).
Summary: Self-healing (SH-)systems are characterized by an automatic discovery of system failures, and techniques how to recover from these situations. In this paper, we show how to model SH-systems using algebraic graph transformation. These systems are modeled as typed graph grammars enriched with graph constraints. This allows not only for formal modeling of consistency and operational properties, but also for their analysis and verification using the tool AGG. We present sufficient static conditions for self-healing properties, deadlock-freeness and liveness of SH-systems. The overall approach is applied to a traffic light system case study, where the corresponding properties are verified.