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Transformative tool integrates constraint logic programming with automated theorem proving for state machines, enhancing formal verification.
Abstract log\ (read ‘setlog’) was born as a Constraint Logic Programming (CLP) language where sets and binary relations are first-class citizens, thus fostering set programming. Internally, log\ is a constraint satisfiability solver implementing decision procedures for several fragments of set theory. Hence, log\ can be used as a declarative, set, logic programming language and as an automated theorem prover for set theory. Over time log\ has been extended with some components integrated to the satisfiability solver thus providing a formal verification environment. In this paper we make a comprehensive presentation of this environment which includes a language for the description of state machines based on set theory, an interactive environment for the execution of functional scenarios over state machines, a generator of verification conditions for state machines, automated verification of state machines, and test case generation. State machines are both, programs and specifications; exactly the same code works as a program and as its specification. In this way, with a few additions, a CLP language turned into a seamlessly integrated programming and automated proof system.
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Cristiá et al. (2026) studied this question.
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