This volume contains the proceedings of the 21st International Conference on Computer-Aided Veri?cation (CAV) held in Grenoble, France, between June 28 and July 2, 2009. CAV is dedicated to the advancement of the theory and practice of computer-aided formal analysis methods for hardware and software systems. Its scope ranges from theoretical results to concrete applications, with an emphasis on practical veri?cation tools and the underlying algorithms and techniques. Everyinstanceofaconferenceisspecialinitsownway.ThisCAVisspecialfor at least two reasons: ?rst, it took place in Grenoble, the place where the CAV series started 20 years ago. Secondly, there was a particularly large number of paper submissions: 135 regular papers and 34 tool papers, summing up to 169 submissions. They all went through an active review process, with each submissionreviewedbyfourmembersoftheProgramCommittee.Wealsosought external reviews from experts in certain areas. Authors had the opportunity to respond to the initial reviews during an author response period. All these inputs wereusedbytheProgramCommitteeinselectinga?nalprogramwith36 regular papers and 16 tool papers. In addition to the presentation of these papers, the program included the following: - Four invited tutorials: Rachid Guerraoui (EPFL Lausanne, Switzerland): Transactional M- ory: Glimmer of a Theory. Jaeha Kim (Stanford, USA): Mixed-Signal System Veri?cation: A High- Speed Link Example. Jean Krivine (Institut des Hautes Etudes Scienti?ques, France): M- elling Epigenetic Information Maintenance: A Kappa Tutorial. JosephSifakis (CNRS-VERIMAG, France): Component-BasedConstr- tion of Real-Time Systems in BIP."

This book constitutes the refereed proceedings of the 20th International Symposium on Automated Technology for Verification and Analysis, ATVA 2022, held in Beiging, China in October 2022. The symposium is dedicated to promoting research in theoretical and practical aspects of automated analysis, verification and synthesis by providing an international venue for the researchers to present new results. The 21 regular papers presented together with 5 tool papers and 1 invited paper were carefully reviewed and selected from 81 submissions.The papers are divided into the following topical sub-headings: reinforcement learning; program analysis and verification; smt and verification; automata and applications; active learning; probabilistic and stochastic systems; synthesis and repair; and verification of neural networks.

This book constitutes the proceedings of the 37th IFIP WG 6.1 International Conference on Formal Techniques for Distributed Objects, Components, and Systems, FORTE 2017, held in Neuchatel, Switzerland, in June 2017, as part of the 12th International Federated Conference on Distributed Computing Techniques, DisCoTec 2017. The 13 revised full papers presented together with 3 short and 1 tool papers were carefully reviewed and selected from 30 submissions. The papers present a wide range of topics on distributed computing models and formal specification, testing, and verification methods.

This book constitutes the refereed proceedings of the 18th International Conference on Verification, Model Checking, and Abstract Interpretation, VMCAI 2017, held in Paris, France, in January 2017. The 27 full papers together with 3 invited keynotes presented were carefully reviewed and selected from 60 submissions. VMCAI provides topics including: program verification, model checking, abstract interpretation and abstract domains, program synthesis, static analysis, type systems, deductive methods, program certification, debugging techniques, program transformation, optimization, hybrid and cyber-physical systems.

This book constitutes the revised selected papers of the Third International Conference on Networked Systems, NETYS 2015, held in Agadir, Morocco, in May 2015. The 29 full papers and 12 short papers presented together with 22 poster abstracts were carefully reviewed and selected from 133 submissions. They address major topics such as multi-core architectures; concurrent and distributed algorithms; middleware environments; storage clusters; social networks; peer-to-peer networks; sensor networks; wireless and mobile networks; and privacy and security measures.