Modular flow analysis for concurrent software

Modern software systems are designed and implemented in a modular fashion by composing individual components. The advantages of early validation are widely accepted in this context, i.e., that defects in individual module designs and implementations may be detected and corrected prior to system-level validation. This is particularly true for errors related to interactions between system components. In this paper, we describe how a whole-program automated static analysis technique can be adapted to the validation of individual components, or groups of components, of sequential or concurrent software systems. This work builds off of an existing approach, FLAVERS, that uses program flow analysis to verify explicitly stated correctness properties of software systems. We illustrate our modular analysis approach and some of its benefits by describing part of a case-study with a realistic concurrent multi-component system.