Full Papers -- Strategy Synthesis for Autonomous Driving in a Moving Block Railway System with Uppaal Stratego -- Towards Bridging Time and Causal Reversibility -- Defining and Verifying Durable Opacity: Correctness for Persistent Software Transactional Memory -- Conformance-Based Doping Detection for Cyber-Physical Systems -- On Implementable Timed Automata? -- Deep Statistical Model Checking -- Trace Equivalence and Epistemic Logic to Express Security Properties -- Derivation of Heard-Of Predicates From Elementary Behavioral Patterns -- Probabilistic Timed Automata with One Clock and Initialised Clock-Dependent Probabilities -- A Formal Framework for Consent Management -- Tutorials -- Tutorial: Parameterized Verification with Byzantine Model Checker -- Typechecking Java Protocols with [St]Mungo -- Short Paper -- Towards a Hybrid Verification Methodology for Communication Protocols (Short Paper).

This book constitutes the proceedings of the 40th IFIP WG 6.1 International Conference on Formal Techniques for Distributed Objects, Components, and Systems, FORTE 2020, held in Valletta, Malta, in June 2020, as part of the 15th International Federated Conference on Distributed Computing Techniques, DisCoTec 2020.* The 10 full papers and 1 short paper presented were carefully reviewed and selected from 25 submissions. The conference is dedicated to fundamental research on theory, models, tools, and applications for distributed systems. *The conference was held virtually due to the COVID-19 pandemic. Chapter 'Conformance-Based Doping Detection for Cyber-Physical Systems' is available open access under a Creative Commons Attribution 4.0 International License via link.springer.com.