This book constitutes the refereed proceedings of the 12th International Conference on Software Engineering and Formal Methods, SEFM 2014, held in Grenoble, France, in September 2014. The 23 full papers presented together with 3 invited and 6 tool papers were carefully reviewed and selected from 106 submissions. They are organized in topical section on program verification, testing, component-based systems, real-time and embedded systems, model checking and automata learning, program correctness, and adaptive and multi-agent systems.

This book constitutes the refereed proceedings of the 18th International Symposium on Formal Methods, FM 2012, held in Paris, France, in August 2012. The 28 revised full papers presented together with 7 tool papers and 3 invited talks were carefully reviewed and selected from numerous submissions. The papers cover several aspects of formal methods, including verification, synthesis, runtime monitoring, testing and controller synthesis, as well as novel applications of formal methods in interesting domains such as satellites, autonomous vehicles and disease dynamics.

This book constitutes the proceedings of the 12th International Symposium on NASA Formal Methods, NFM 2020, held in Moffett Field, CA, USA, in May 2020.* The 20 full and 5 short papers presented in this volume were carefully reviewed and selected from 62 submissions. The papers are organized in the following topical sections: learning and formal synthesis; formal methods for DNNs; high assurance systems; requirement specification and testing; validation and solvers; solvers and program analysis; verification and times systems; autonomy and other applications; and hybrid and cyber-physical systems. *The conference was held virtually due to the COVID-19 pandemic. The chapter "Verifying a Solver for Linear Mixed Integer Arithmetic in Isabelle/HOL" is available open access under a Creative Commons Attribution 4.0 International License via link.springer.com.

This volume constitutes the thoroughly refereed post-conference proceedings of the 6th International Conference on Verified Software: Theories, Tools and Experiments, VSTTE 2014, held in July 2014 at the Vienna Summer of Logic in Vienna, Austria, as an associated event of CAV 2014, the International Conference on Computer-Aided Verification. The 17 revised full papers presented were carefully revised and selected from 34 submissions. The papers are organized in topical sections such as analysis: understanding and explanation; verification frameworks and applications; hypervisors and dynamic data structures; certification; real time and security.