Tests And Proofs: 5th International Conference, Tap 2011, Zurich, Switzerland, June 30 – July 1, 2011. Proceedings

Lecture Notes in Computer Science Commenced Publication in 1973 Founding and Former Series Editors: Gerhard Goos, Juris Hartmanis, and Jan van Leeuwen Editorial Board David Hutchison Lancaster University, UK Takeo Kanade Carnegie Mellon University, Pittsburgh, PA, USA Josef Kittler University of Surrey, Guildford, UK Jon M. Kleinberg Cornell University, Ithaca, NY, USA Alfred Kobsa University of California, Irvine, CA, USA Friedemann Mattern ETH Zurich, Switzerland John C. Mitchell Stanford University, CA, USA Moni Naor Weizmann Institute of Science, Rehovot, Israel Oscar Nierstrasz University of Bern, Switzerland C. Pandu Rangan Indian Institute of Technology, Madras, India Bernhard Steffen TU Dortmund University, Germany Madhu Sudan Microsoft Research, Cambridge, MA, USA Demetri Terzopoulos University of California, Los Angeles, CA, USA Doug Tygar University of California, Berkeley, CA, USA Gerhard Weikum Max Planck Institute for Informatics, Saarbruecken, Germany 6706 Martin Gogolla Burkhart Wolff (Eds.) Tests and Proofs 5th International Conference, TAP 2011 Zurich, Switzerland, June 30 – July 1, 2011 Proceedings 13 Volume Editors Martin Gogolla Universität Bremen Fachbereich Mathematik/Informatik Bibliothekstr. 1, 28334 Bremen, Germany E-mail: [email protected] Burkhart Wolff Université Paris-Sud 11 Parc Club Orsay Université ZAC des vignes, 4, rue Jacques Monod, 91893 Orsay Cedex, France E-mail: [email protected] ISSN 0302-9743 e-ISSN 1611-3349 ISBN 978-3-642-21767-8 e-ISBN 978-3-642-21768-5 DOI 10.1007/978-3-642-21768-5 Springer Heidelberg Dordrecht London New York Library of Congress Control Number: Applied for CR Subject Classification (1998): D.2.4, D.2, D.1, D.3, F.3, F.4.1 LNCS Sublibrary: SL 2 – Programming and Software Engineering © Springer-Verlag Berlin Heidelberg 2011 This work is subject to copyright. All rights are reserved, whether the whole or part of the material is concerned, specifically the rights of translation, reprinting, re-use of illustrations, recitation, broadcasting, reproduction on microfilms or in any other way, and storage in data banks. Duplication of this publication or parts thereof is permitted only under the provisions of the German Copyright Law of September 9, 1965, in its current version, and permission for use must always be obtained from Springer. Violations are liable to prosecution under the German Copyright Law. The use of general descriptive names, registered names, trademarks, etc. in this publication does not imply, even in the absence of a specific statement, that such names are exempt from the relevant protective laws and regulations and therefore free for general use. Typesetting: Camera-ready by author, data conversion by Scientific Publishing Services, Chennai, India Printed on acid-free paper Springer is part of Springer Science+Business Media (www.springer.com) Preface This volume contains the research papers and invited papers presented at the 5th International Co