ARCH-COMP21 Category Report: Hybrid Systems Theorem Proving

This paper reports on the Hybrid Systems Theorem Proving (HSTP) category in ARCH-COMP Friendly Competition 2021. The characteristic features of HSTP cate- gory remain as previous editions [MST+18, MST+19, MMJ+20], it focuses flexi- bility programming languages structuring principles for hybrid systems, unambiguity and precision program semantics, mathematical rigor logical reasoning principles. benchmark set includes nonlinear parametric continuous systems games, each three modes: fully automatic verification, semi-automatic verifica- tion from proof hints, checking scripted tactics. instance competition introduces extensions to scripting language, a comparison influence arithmetic backend versions verification performance KeYmaera X, well improvements HHL Prover.