FACS FACTS Newsletter in 2006
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Verification and Formal Methods
Verification and Formal Methods: Practice and Experience J. C. P. Woodcock University of York, UK and P. G. Larsen Engineering College of Aarhus, Denmark and J. C. Bicarregui STFC Rutherford Appleton Laboratory, UK and J. S. Fitzgerald Newcastle University, UK We describe the state of the art in the industrial use of formal verification technology. We report on a new survey of the use of formal methods in industry, and compare it with the most significant surveys carried out over the last 20 years. We review the literature on formal methods, and present a series of industrial projects undetaken over the last two decades. We draw some observations from these surveys and records of experience. Based on this, we discuss the issues surrounding the industrial adoption of formal methods. Finally, we look to the future and describe the development of a Verified Software Repository, part of the worldwide Verified Software Initiative. We introduce the initial projects being used to populate the repository, and describe the challenges they address. Categories and Subject Descriptors: D.2.4 [Software/Program Verification]: Assertion check- ers, Class invariants, Correctness proofs, Formal methods, Model checking, Programming by contract; F.3.1 [Specifying and Verifying and Reasoning about Programs]: Assertions, Invariants, Logics of programs, Mechanical verification, Pre- and post-conditions, Specification techniques; F.4.1 [Mathematical Logic]: Mechanical theorem proving; I.2.2 [Automatic Pro- gramming]: Program verification. Additional Key Words and Phrases: Experimental software engineering, formal methods surveys, Grand Challenges, Verified Software Initiative, Verified Software Repository. 1. INTRODUCTION Formal verification, for both hardware and software, has been a topic of great sig- nificance for at least forty years. -
August 2018 FACS a C T S
Issue 2018-1 August 2018 FACS A C T S The Newsletter of the Formal Aspects of Computing Science (FACS) Specialist Group ISSN 0950-1231 FACS FACTS Issue 2018-1 August 2018 About FACS FACTS FACS FACTS (ISSN: 0950-1231) is the newsletter of the BCS Specialist Group on Formal Aspects of Computing Science (FACS). FACS FACTS is distributed in electronic form to all FACS members. Submissions to FACS FACTS are always welcome. Please visit the newsletter area of the BCS FACS website for further details at: http://www.bcs.org/category/12461 Back issues of FACS FACTS are available for download from: http://www.bcs.org/content/conWebDoc/33135 The FACS FACTS Team Newsletter Editors Tim Denvir [email protected] Brian Monahan [email protected] Editorial Team Jonathan Bowen, John Cooke, Tim Denvir, Brian Monahan, Margaret West. Contributors to this issue Jonathan Bowen, John Cooke, Tim Denvir, Sofia Meacham. Brian Monahan, Bill Stoddart, Botond Virginas, Margaret West BCS-FACS websites BCS: http://www.bcs-facs.org LinkedIn: http://www.linkedin.com/groups?gid=2427579 Facebook: http://www.facebook.com/pages/BCS-FACS/120243984688255 Wikipedia: http://en.wikipedia.org/wiki/BCS-FACS If you have any questions about BCS-FACS, please send these to Paul Boca [email protected] 2 FACS FACTS Issue 2018-1 August 2018 Editorial Dear readers, welcome to our first issue of FACS FACTS for 2018. This year, 2018, marks the 40th anniversary of FACS. At least one editor recalls an article by Dan Simpson, member of the editorial team at the time, FACS at 10 in 1988. -
Toolkit Essex.Pdf
Internationalising the Curriculum Internationalising the Curriculum If we want to attract the best students, provide the best experience of living and learning, and give our students the best chance of competing in a global economy, we must continue to retain our international outlook. This starts with the curriculum. It is not enough to provide opportunities that only the most engaged and motivated students take advantage of – our international heritage should impact on the experience of all Essex students.” “This toolkit is a perfect starting point for discussions about how we can continue to embed internationally-relevant opportunities into both the formal curriculum and into extra-curricular activities. There should be something here that is interesting and achievable for any academic department and individual member of staff. Professor Anthony Forster, Vice-Chancellor, 2012 – present Internationalisation is important because it introduces our students to a plurality of ways of doing things. It challenges the idea that there’s only one right way to approach a problem. It’s about making visible the specificity of the places from which we start our inquiries. I think that’s a really crucial experience when you learn, so when you go out into the world you are sensitive to and values different ways of doing things. Once that mental shift is made, one has a completely different perspective and orientation towards life and towards the multiplicity of perspectives and possibilities of the globalised world in which we live. Professor Aletta Norval, Pro-Vice-Chancellor – Education The Toolkit is great. I think it should be compulsory reading. -
Preface Volume 23, Issue 3
View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by Elsevier - Publisher Connector Electronic Notes in Theoretical Computer Science www.elsevier.com/locate/entcs Preface Volume 23, Issue 3 Alessandro Armando and Tudor Jebelean Abstract AbstractThis volume contains the Proceedings of Calculemus 99, a satellite workshop of CADE 16: “Computer Aided Deduction”, itself a part of FLoC 99: “Federated Logic Conference”. The workshop addressed the problem of combining the reasoning capabilities of Deduction Systems and the computational power of Computer Algebra Systems. This topic is of particular interest since both Deduction Systems and Computer Algebra Systems are receiving growing at- tention from industry and academia. On the one hand, Mathematical Software Systems have been commercially very successful: their use is now wide-spread in industry, education, and in scientific contexts. On the other hand, the use of formal methods in hardware and software development makes Deduction Systems indispensable not least because of the complexity and sheer size of the reasoning tasks involved. In spite of these successes there is still need for improvement as many application domains still fall outside the scope of existing Deduction Systems and Computer Al- gebra Systems. The emphasis of the workshop was on whether existing systems and technologies can be integrated as they stand or if a fundamental redesign is necessary. The proceedings contain contributions from some of the most important scientific groups in- volved in research and applications of automatic deduction and symbolic computation. The 11 papers selected by the programme committee and the two invited talks address various aspects related to the combination of deduction systems and computer algebra systems, including case studies and results from applications. -
The Engineering Council 2002 to 2010
The Engineering Council 2002 to 2010 A Review by Andrew Ramsay MA CEng FCIS Contents Foreword 3 Prologue 5 The Early Days of ECUK 7 Year by Year 15 International Recognition 30 Annex A: Timeline 41 Annex B: SARTOR 3 42 Annex C: Incorporated Engineer Title – a Summary 44 Engineering Council Board 2002 to 2010 46 PEIs 2002 and 2010 48 List of Acronyms 49 Index 51 Acknowledgements 55 Page | 2 Foreword This review of the progress of the Engineering Council offers an inevitably personal view of issues, events and people who contributed to what must be judged as a successful period. However, while the Engineering Council is never itself going to be the UK engineering profession, it certainly moved towards a more central and less controversial position in its work and profile during this time. I am indebted to the detailed and lucid account of the earlier years of the Engineering Council written by Colin Chapman and Professor Jack Levy. Entitled Chronicle: An Engine for Change, this was published by the Engineering Council in 2004 and at the time of writing is still available on their website (shortcut link http://bit.ly/IY4ZLf ). However, for the shorter timeframe of this review I have adopted a less episodic structure than that of the Chronicle. It seemed to me that the extraordinary events that led up to creation of a “new regulatory body” in 2002, and in the 21 months that followed, deserved particular examination. Similarly, the way in which the Council was able to influence important developments in international recognition of UK-registered engineers can only really be understood in a continuous narrative – hence a separate section for this. -
4Th International Symposium on Unifying Theories of Programming
Website Call for Papers http://utp12.lri.fr/ Interest in the fundamental problem of the combination of formal notations and theories of programming has grown consistently in recent Chairs years. The theories define, in various different ways, many common Marie-Claude Gaudel ([email protected]) notions, such as abstraction, refinement, choice, termination, feasibility, Burkhart Wolff ([email protected]) concurrency and communication. Despite these differences, such theories may be unified in a way which greatly facilitates their study and Organisation Chair comparison. Moreover, such a unification offers a means of combining different languages describing various facets and artifacts of software Abderrahmane Feliachi ([email protected]) development in a seamless, logically consistent way. Hoare and He's Unifying Theories of Programming (UTP) is widely acknowledged one Invited Speakers of the most significant such unification approaches to have emerged in the last 15 years. Jim Woodcock, University of York, UK. Based on their pioneering work, the aims of the UTP Symposium Jeremy Gibbons, series are to continue reaffirming the significance of the ongoing UTP University of Oxford, UK. project and to stimulate efforts to advance it by providing a focus for the sharing of results by those already actively contributing, and to raise Important Dates awareness of the benefits of such unifying theoretical frameworks among the wider computer science and software engineering Paper submission: March 31, 2012 communities. Notification: May 14, 2012 Camera-ready: June 4, 2012 To this end the Symposium welcomes contributions on all the themes Symposium: August 27-28, 2012 that can be related to the Unifying Theories of Programming. -
Job Description and Person Specificationselection Criteria
MATHEMATICAL INSTITUTE ANDREW WILES BUILDING Job Description and Selection Criteria Postdoctoral Research Assistant in history and impact of Job title mathematics and theory of computing Division Mathematical, Physical and Life Sciences Department Mathematical Institute Andrew Wiles Building, Radcliffe Observatory Quarter, Woodstock Location Road, Oxford, OX2 6GG. Grade and salary Grade 7: salary £32,236 - £39,609 Hours Full time Contract type 2 years Fixed-term Reporting to Dr Christopher Hollings and Professor Ursula Martin Vacancy reference 142099 This is a full-time position that cannot be held concurrently with any other substantive post without the explicit permission of the Head of Department. This position is subject to a 9 month probationary period. Additional information This position is funded by EPSRC. (PLEASE NOTE: Applicants are responsible for contacting their referees and making sure that their letters are received by the closing date) The Role We invite applications for a Postdoctoral Research Assistant position to work with Dr Christopher Hollings and Professor Ursula Martin of the Mathematical Institute, University of Oxford, on an exciting new project to understand and model the long-term development and impact of mathematics or computing research. The postholder will be based in the History of Mathematics group in Oxford, led by Dr Christopher Hollings, who will be the immediate supervisor for this project. It is part of a multi- disciplinary EPSRC Fellowship, held by Professor Ursula Martin, Professor in the School of Informatics, University of Edinburgh, and Visiting Professor in the Oxford Mathematical Institute. The fellowship investigates the broader cultural context for the creation and impact of mathematical research, through this project in Oxford, and complementary projects in Edinburgh, on the deployment of new proof techniques in mathematics and computer science, and the evaluation of research impacts. -
The Future of Computing – a Vision
The Future of Computing—Visions and Reflections Ann Light e-Horizons Project of the Oxford Internet Institute and Oxford e-Research Centre Forum organisers: Ann Blandford University College London Marina Jirotka University of Oxford Ursula Martin Queen Mary University of London William H. Dutton Oxford Internet Institute (OII) OII / e-Horizons Forum Discussion Paper No. 11 Oxford Internet Institute University of Oxford 1 St Giles Oxford OX12 3JS United Kingdom August 2007 This paper is a summary of an e-Horizons forum ‘The Future of Computing: A Vision’ of the Oxford Internet Institute, Oxford e-Research Centre, Queen Mary University of London, and University College London, held at Newnham College, Cambridge, on 29-30 March 2007. The organizers thank the speakers and participants for their contributions to the engaging conversation captured in the following pages. They are particularly grateful to the James Martin 21st Century School at the University of Oxford and Women@CL for their support of this event. Dedication “Computing is too important to be left to men” Karen Spärck Jones, FBA Emeritus Professor of Computers and Information Honorary Fellow of Wolfson College 26 August 1935 - 4 April 2007 Karen was to give a talk at the forum but felt too unwell to attend. It was with great sorrow that, days later, we learnt of her death. She will be greatly missed. Obituary by Yorick Wilks: http://nlp.shef.ac.uk/KSJ.doc Ann Light ‘The Future of Computing: A Vision’ was a senior women’s forum, organised by The e- Horizons Institute (University of Oxford) and Women@CL. -
On a New Notion of Partial Refinement
On a New Notion of Partial Refinement Emil Sekerinski Tian Zhang McMaster University McMaster University Hamilton, Canada Hamilton, Canada [email protected] [email protected] Formal specification techniques allow expressing idealized specifications, which abstract from re- strictions that may arise in implementations. However, partial implementations are universal in soft- ware development due to practical limitations. Our goal is to contribute to a method of program refinement that allows for partial implementations. For programs with a normal and an exceptional exit, we propose a new notion of partial refinement which allows an implementation to terminate ex- ceptionally if the desired results cannot be achieved, provided the initial state is maintained. Partial refinement leads to a systematic method of developing programs with exception handling. 1 Introduction In software development, specifications are meant to be concise by stating abstractly only the intention of a program rather than elaborating on a possible implementation. However, practical restrictions can prevent idealized specifications from being fully implemented. In general, there are three sources of partiality in implementations: there may be inherent limitations of the implementation, some features may intentionally not (yet) be implemented, or there may be a genuine fault. As an example of inherent limitations of an implementation, consider a class for the analysis of a collection of integers. The operations are initialization, inserting an integer, and summing all its elements. Assume that int is a type for machine-representable integers, bounded by MIN and MAX, and machine arithmetic is bounded, i.e. an overflow caused by arithmetic operations on int is detected and raises an exception, as available in x86 assembly language [11] and .NET [20]. -
A Comprehensive Survey of Trends in Oracles for Software Testing
1 A Comprehensive Survey of Trends in Oracles for Software Testing Mark Harman, Phil McMinn, Muzammil Shahbaz and Shin Yoo Abstract—Testing involves examining the behaviour of a system in order to discover potential faults. Determining the desired correct behaviour for a given input is called the “oracle problem”. Oracle automation is important to remove a current bottleneck which inhibits greater overall test automation; without oracle automation, the human has to determine whether observed behaviour is correct. The literature on oracles has introduced techniques for oracle automation, including modelling, specifications, contract-driven development and metamorphic testing. When none of these is completely adequate, the final source of oracle information remains the human, who may be aware of informal specifications, expectations, norms and domain specific information that provide informal oracle guidance. All forms of oracle, even the humble human, involve challenges of reducing cost and increasing benefit. This paper provides a comprehensive survey of current approaches to the oracle problem and an analysis of trends in this important area of software testing research and practice. Index Terms—Test oracle; Automatic testing; Testing formalism. F 1 INTRODUCTION undecidable problem. For example, attempting to cover all branches [6], [10], [16], [64], [77], Much work on testing seeks to automate as [159], [177] in a system under test can never be much of the test process as practical and de- complete because branch reachability is known sirable, in order to make testing faster, cheaper to be undecidable in general [192]. and more reliable. In order to automate testing, The problem of generating test inputs to we need an oracle, a procedure that determines achieve coverage of test adequacy criterion what the correct behaviour of a system should has been the subject of research interest for be for all input stimuli with which we wish nearly four decades [48], [106] and has been to subject the system under test. -
Professor Martin Henson
Professor Martin Henson PROFILE Senior academic manager and consultant, specializing in Higher Education strategy, management, accreditation, audit, curriculum design and development, and international collaborations. In demand as a keynote speaker, consultant and capacity builder on the international scene. A professor of Computer Science, with over 100 publications, attracting over US$1 million in research funding over the last three years. Currently leading on International Strategy at the University of Essex - a top ten university in the UK and THE “Top 20 under 50” in the world. OVERVIEW Professor Henson is Dean for International Affairs and a Professor of Computer Science at the University of Essex - as such he has responsibility, working with others, to develop and implement the University's International Strategy. The strategy aims to further internationalize the university, developing beneficial, reciprocal relationships in education and research, with students, academic and professional colleagues, faculties, schools, departments, and academic institutions across the world. The emphasis is on opportunities leading to mutual benefits and new understanding. Martin is constantly engaged in discussing new international academic collaborations in research and teaching. He also has considerable experience in curriculum design in Higher Education, both within and outside the UK, and in external examining and accreditation in Higher and Further Education. He has worked as a consultant for several Ministries of Higher Education and universities, internationally, undertaking academic reviews, institutional analysis, developing accreditation standards, and leading strategic planning exercises. His academic work concerns the area of Formal Methods for software engineering, in particular the design and use of logics of specification and program development. -
ABET 2009 Annual Report for Fiscal Year 2008
The People at the Heart of ABET Accreditation 2009 Annual Report for Fiscal Year 2008-2009 Table of Contents ABET at a Glance . Page 2 The People of ABET . Page 6 Executive Letter . Page 7 A Legacy of Leadership . Page 8 Q&A with Dr . Michael Milligan . Page 9 The People at the Heart of ABET Accreditation . Page 12 Highlights of the Year . Page 16 ABET Accreditation Council . Page 19 ASAC Commission . Page 21 CAC Commission . Page 23 EAC Commission . Page 25 TAC Commission . Page 27 Industry Advisory Council . Page 29 International Activities Council . Page 31 Financial Highlights . Page 33 Notes to Financial Statements . Page 36 Statistics . Page 38 ABET Board of Directors . Page 46 Team Chairs . Page 47 2008-2009 Program Evaluators . Page 49 ABET Professional Staff . Page 57 Fellows of ABET . Page 58 Linton E . Grinter Award . Page 59 President’s Awards for Diversity . Page 60 Who’s Who on Our Covers . Page 61 2009 ABET Annual Report ABET at a Glance ABET is… n The global gold standard in professional technical education accreditation . n The recognized accreditor for applied science, computing, engineering, and technology programs . n A federation of 30 professional technical societies that represent “the professions .” (See page 3 .) n A 501(c) 3 nonprofit staffed by 34 full- and part-time employees and over 1,500 volunteers . ABET’s Vision ABET will provide world leadership in assuring quality and in stimulating innovation in applied science, computing, engineering, and technology education . ABET’s Mission ABET serves the public through the promotion and advancement of education in applied science, computing, engineering, and technology .