ProB2-UI: A Java-Based User Interface for ProB

ProB2-UI is a modern JavaFX-based user interface for the animator, constraint solver, and model checker ProB. We present the main features of the tool, especially compared to ProB’s previous user interfaces and other available tools for B, Event-B, and other formalisms. We also present some of ProB2-UI’s history as well as its uses in the industry since its release in 2019.