This book describes the methodology and accompanying technology for reducing the costs of validation of changes by introducing automatic techniques to analyze and test software increments. It builds a unified approach to efficient and reliable validation of changes and upgrades, and may be used as a research monograph and a reference book.

This book describes the methodology and accompanying technology for reducing the costs of validation of changes by introducing automatic techniques to analyze and test software increments. It builds a unified approach to efficient and reliable validation of changes and upgrades, and may be used as a research monograph and a reference book.

These are the conference proceedings of the 4th Haifa Veri?cation Conference, held October 27-30, 2008 in Haifa, Israel. This international conference is a unique venue that brings together leading researchers and practitioners of both formal and dynamic veri?cation, for both hardware and software systems. This year's conference extended the successes of the previous years, with a largejumpinthenumberofsubmitted papers. Wereceived49totalsubmissions, with many more high-quality papers than we had room to accept. Submissions came from 19 di?erent countries, re?ecting the growing international visibility of the conference. Of the 49 submissions, 43 were regular papers, 2 of which were later withdrawn, and 6 were tool papers. After a rigorous review process, in which each paper received at least four independent reviews from the dist- guished Program Committee, we accepted 12 regular papers and 4 tools papers for presentation at the conference and inclusion in this volume. These numbers give acceptance rates of 29% for regular papers and 67% for tool papers (34% combined) - comparable to the elite, much older, conferences in the ?eld. A Best Paper Award, selected on the basis of the reviews and scores from the Program Committee, was presented to Edmund Clarke, Alexandre Donz e, and AxelLegayfortheirpaperentitled"StatisticalModelCheckingofMixed-Analog Circuits with an Application to a Third-Order Delta-Sigma Modulator. " The refereed program was complemented by an outstanding program of - vited talks, panels, and special sessions from prominent leaders in the ?eld."

This open access two-volume set LNCS 10980 and 10981 constitutes the refereed proceedings of the 30th International Conference on Computer Aided Verification, CAV 2018, held in Oxford, UK, in July 2018. The 52 full and 13 tool papers presented together with 3 invited papers and 2 tutorials were carefully reviewed and selected from 215 submissions. The papers cover a wide range of topics and techniques, from algorithmic and logical foundations of verification to practical applications in distributed, networked, cyber-physical, and autonomous systems. They are organized in topical sections on model checking, program analysis using polyhedra, synthesis, learning, runtime verification, hybrid and timed systems, tools, probabilistic systems, static analysis, theory and security, SAT, SMT and decisions procedures, concurrency, and CPS, hardware, industrial applications.

This open access two-volume set LNCS 10980 and 10981 constitutes the refereed proceedings of the 30th International Conference on Computer Aided Verification, CAV 2018, held in Oxford, UK, in July 2018. The 52 full and 13 tool papers presented together with 3 invited papers and 2 tutorials were carefully reviewed and selected from 215 submissions. The papers cover a wide range of topics and techniques, from algorithmic and logical foundations of verification to practical applications in distributed, networked, cyber-physical, and autonomous systems. They are organized in topical sections on model checking, program analysis using polyhedra, synthesis, learning, runtime verification, hybrid and timed systems, tools, probabilistic systems, static analysis, theory and security, SAT, SMT and decisions procedures, concurrency, and CPS, hardware, industrial applications.

This book considers formal verification of computerized systems. In formal verification (model checking), we verify the correctness of a system with respect to a desired behavior bychecking whether a mathematical model of the system satisfies a formal specification ofthe behavior. The process is fully automatic and, in case the verification fails, supplies a counterexample showing a behavior of the system that does not satisfy the specification. These counterexamples are very important and they can be essential in detecting subtle errors in complex designs. On the other hand, when the answer to the correctness query is positive, most model-checking tools terminate without further information to the user.Since a positive answer means that the system is correct with respect to the specification, this may seem like a reasonable policy. However, the exhaustiveness of the model checking process depends solely on the correctness and exhaustiveness of specifications, which are written manually. In this book, we study coverage metrics, which are a way to check exhaustiveness of specifications and can direct the verification process to unexplored areas of the desig