Formally Verified Animation for RoboChart Using Interaction Trees

RoboChart is a core notation in the RoboStar framework. It timed and probabilistic domain-specific state machine based language for robotics. supports shared variables communication across entities its component model. has formal denotational semantics given CSP. Interaction Trees (ITrees) semantic technique to represent behaviours of reactive concurrent programs interacting with their environments. Recent mechanisations ITrees along ITree-based CSP Z mathematical toolkit Isabelle/HOL bring new applications verification animation state-rich process languages, such as RoboChart. In this paper, we use give novel operational semantics, implement it Isabelle, Isabelle’s code generator generate verified executable animations. We illustrate our approach using an autonomous chemical detector With animation, show two concrete scenarios when robot encounters different environmental inputs.