sweap: Reactive Synthesis for Infinite-State Integer Problems

Abstract

Abstract Recent years have seen a significant increase in the interest in reactive synthesis from specifications that relate to infinite state spaces. We present , a tool for synthesis of infinite-state Linear Integer Arithmetic reactive systems. implements a CEGAR approach, relying on state-of-the-art finite-state synthesis tools as black boxes to solve abstract synthesis problems. supports most common input formalisms for infinite-state reactive-synthesis problems: Temporal Stream Logic Modulo Theories, Reactive Program Games, the bespoke input of the tool, and our own bespoke input. We present a mature version of with novel features: a dual abstraction approach that improves its capabilities in proving unrealisability, support for nondeterministic and unbounded updates, more general initialization of variables, and equirealisable reductions for optimisation. Experimental evaluation shows that outperforms its only competitor in this domain.