Fourth Nasa Langley Formal Methods Workshop

This volume contains the contributions presented at the International Workshop on Current Trends in Applied Formal Methods organized October 7-9, 1998, in Boppard, Germany. The main objective of the workshop was to draw a map of the key issues facing the practical application of formal methods in industry. This appears to be particularly timely with safety and security issues becoming a real obstacle to industrial software and hardware development. As a consequence, almost all major companies have now set up departments or groups to work with formal methods and many European countries face a severe labour shortage in this new field. Tony Hoare's prediction of the art of software (and hardware) development becoming a proper engineering science with its own body of tools and techniques is now becoming a reality. So the focus of this application oriented workshop was not so much on spe cial academic topics but rather on the many practical aspects of this emerging new technology: verification and validation, and tool support and integration into the software life-cycle. By evaluating the state of the art with respect to industrial applications a discussion emerged among scientists, practising engi neers, and members of regulatory and funding agencies about future needs and developments. This discussion lead to roadmaps with respect to the future of this field, to tool support, and potential application areas and promising market segments. The contributions of the participants from industry as well as from the respective national security bureaus were particularly valuable and highly appreciated.

The biannual Formal Methods in Computer Aided Design conference (FMCAD 2000)is the third in a series of conferences under that title devoted to the use of discrete mathematical methods for the analysis of computer hardware and so- ware. The work reported in this book describes the use of modeling languages and their associated automated analysis tools to specify and verify computing systems. Functional veric ation has become one of the principal costs in a modern computer design e ort. In addition,verica tion of circuit models, timing,power, etc., requires even more eo rt. FMCAD provides a venue for academic and - dustrial researchers and practitioners to share their ideas and experiences of using discrete mathematical modeling and veric ation. It is noted with interest by the conference chairmen how this area has grown from just a few people 15 years ago to a vibrant area of research, development, and deployment. It is clear that these methods are helping reduce the cost of designing computing systems. As an example of this potential cost reduction, we have invited David Russino of Advanced Micro Devices, Inc. to describe his veric ation of ?oating-point - gorithms being used in AMD microprocessors. The program includes 30 regular presentations selected from 63 submitted papers.

This book constitutes the refereed proceedings of the Second International Conference on Formal Methods in Computer-Aided Design, FMCAD '98, held in Palo Alto, California, USA, in November 1998. The 27 revised full papers presented were carefully reviewed and selected from a total of 55 submissions. Also included are four tools papers and four invited contributions. The papers present the state of the art in formal verification methods for digital circuits and systems, including processors, custom VLSI circuits, microcode, and reactive software. From the methodological point of view, binary decision diagrams, model checking, symbolic reasoning, symbolic simulation, and abstraction methods are covered.

These are the proceedings of the fifth international conference, Formal Methods in Computer-Aided Design (FMCAD), held 15-17 November 2004 in Austin, Texas, USA. The conference provides a forum for presenting state-of-the-art tools, methods, algorithms, and theory for the application of formalized reasoning to all aspects of computer-aided system design, including specification, verification, synthesis, and testing. FMCAD's heritage dates back 20 years to some of the earliest conferences on the subject of formal reasoning and computer-aided design. Since 1996,FMCAD has assumed its present form, held biennially in North America, alternating with its sister conference CHARME in Europe. We are delighted to report that our research community continues to flourish: we received 69 paper submissions, with many more high-quality papers than we had room to accept. After a rigorous review process, in which each paper received at least three, and typically four or more, independent reviews, we accepted 29 papers for the conference and inclusion in this volume. The conference also included invited talks from Greg Spirakis of Intel Corporation and Wayne Wolf of Princeton University. A conference of this size requires the contributions of numerous people. On the technical side, we are grateful to the program committee and the additional reviewers for their countless hours reviewing submissions and ensuring the intellectual quality of the conference. We would also like to thank the steering committee for their wisdom and guidance. On the logistical side, we thank Christa Mace for designing our website and attending to countless organizational tasks. And we thank our corporate sponsors - AMD, IBM, Intel, and Synopsys - for financial support that helped make this conference possible.

Industrial Strength Formal Methods in Practice provides hands-on experience and guidance for anyone who needs to apply formal methods successfully in an industrial context. Each chapter is written by an expert in software engineering or formal methods, and contains background information, introductions to the techniques being used, actual fragments of formalised components, details of results and an analysis of the overall approach. It provides specific details on how to produce high-quality software that comes in on-time and within budget. Aimed mainly at practitioners in software engineering and formal methods, this book will also be of interest to the following groups; academic researchers working in formal methods who are interested in evidence of their success and in how they can be applied on an industrial scale, and students on advanced software engineering courses who need real-life specifications and examples on which to base their work.