Kex: A Platform For Analysis Of JVM Programs

Introduction: Over the last years program analysis methods were widely used for software quality assurance. Different types of require various levels representation, methods, etc. Platforms that provide utilities to implement different on their basis become very important because they allow one simplify process development. Purpose: Development a platform JVM programs. Results: In this paper we present Kex, building tools bytecode. Kex provides three abstraction levels. First is Kfg, which an SSA-based control flow graph representation bytecode-level and transformation. Second symbolic called Predicate State, consists first order logic predicates represent instructions original program, constraints, The final level SMT integration layer constraint solving. It currently interface interacting with solvers. Practical relevance: We have evaluated our by considering two prototypes. prototype automatic test generation tool has participated in SBST 2021 competition. detection library errors. Both prototypes proved can be competitive powerful tools.