Formal verification and validation play a crucial role in making cyber-physical systems (CPS) safe. Formal methods make strong guarantees about the system behavior if accurate models of the system can be obtained, including models of the controller and of the physical dynamics. In CPS, models are essential; but any model we could possibly build necessarily deviates from the real world. If the r...

Abstract The efficiency and the security of smart contracts are their two fundamental properties, but might come at odds: use optimizers to enhance may introduce bugs compromise security. Our focus is on (Ethereum Virtual Machine) block-optimizations , which jump-free blocks opcodes by eliminating, reordering even changing original opcodes. We reconcile providing verification technology formall...