TEMPEST - Synthesis Tool for Reactive Systems and Shields in Probabilistic Environments

We present Tempest, a synthesis tool to automatically create correct-by-construction reactive systems and shields from qualitative or quantitative specifications in probabilistic environments. A shield is special type of system used for run-time enforcement; i.e., enforces given specification running while interfering with its operation as little possible. Shields that enforce are called safety-shields optimal-shields, respectively. Safety-shields can be implemented pre-shields post-shields, optimal-shields post-shields. Pre-shields placed before the restrict choices system. Post-shields after able overwrite system’s output. Tempest based on model checker Storm, adding checking algorithms stochastic games safety mean-payoff objectives. To best our knowledge, only solve 2 Open image new window -player objectives without restrictions state space. Furthermore, adds functionality synthesize safe optimal strategies implement shields.