Validity-Guided Synthesis of Reactive Systems from Assume-Guarantee Contracts [chapter]

Andreas Katis, Grigory Fedyukovich, Huajun Guo, Andrew Gacek, John Backes, Arie Gurfinkel, Michael W. Whalen
2018 Lecture Notes in Computer Science  
Automated synthesis of reactive systems from specifications has been a topic of research for decades. Recently, a variety of approaches have been proposed to extend synthesis of reactive systems from propositional specifications towards specifications over rich theories. We propose a novel, completely automated approach to program synthesis which reduces the problem to deciding the validity of a set of ∀∃-formulas. In spirit of IC3/PDR, our problem space is recursively refined by blocking out
more » ... gions of unsafe states, aiming to discover a fixpoint that describes safe reactions. If such a fixpoint is found, we construct a witness that is directly translated into an implementation. We implemented the algorithm on top of the JKind model checker, and exercised it against contracts written using the Lustre specification language. Experimental results show how the new algorithm outperforms JKind's already existing synthesis procedure based on k-induction and addresses soundness issues in the k-inductive approach with respect to unrealizable results.
doi:10.1007/978-3-319-89963-3_10 fatcat:7ae7juzryfgkvagaxaqpptatly