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Paper Abstract and Keywords
Presentation 2007-08-03 11:45
Abstraction of Extended Timed Automata for UPPAAL Based on Counterexample-Guided Abstraction Refinement Loop
Takeshi Nagaoka, Kozo Okano, Shinji Kusumoto (Osaka Univ) SS2007-29
Abstract (in Japanese) (See Japanese page) 
(in English) In the model checking of the realtime systems, the number of states of models increases exponentlly with the number of the state variables and the clock variables. Such explosion severely limits the scalability of model checking. This paper proposes a concrete model abstraction technique for extended timed automata used in UPPAAL, a famous model checking tool for realtime systems.In the proposed technique, the abstraction refinement loop based on the counterexample that Clarke et al. proposed is applied, and all the processes from the abstraction can be performed automatically.We gives concrete procedures for the abstraction loop with utilization of DBM.
Keyword (in Japanese) (See Japanese page) 
(in English) Model Checking / Timed Automata / Model Abstraction / CEGAR / UPPAAL / / /  
Reference Info. IEICE Tech. Rep., vol. 107, no. 176, SS2007-29, pp. 77-82, Aug. 2007.
Paper # SS2007-29 
Date of Issue 2007-07-26 (SS) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
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Conference Information
Committee SS  
Conference Date 2007-08-02 - 2007-08-03 
Place (in Japanese) (See Japanese page) 
Place (in English) Hokkaido Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) general 
Paper Information
Registration To SS 
Conference Code 2007-08-SS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Abstraction of Extended Timed Automata for UPPAAL Based on Counterexample-Guided Abstraction Refinement Loop 
Sub Title (in English)  
Keyword(1) Model Checking  
Keyword(2) Timed Automata  
Keyword(3) Model Abstraction  
Keyword(4) CEGAR  
Keyword(5) UPPAAL  
1st Author's Name Takeshi Nagaoka  
1st Author's Affiliation Osaka University (Osaka Univ)
2nd Author's Name Kozo Okano  
2nd Author's Affiliation Osaka University (Osaka Univ)
3rd Author's Name Shinji Kusumoto  
3rd Author's Affiliation Osaka University (Osaka Univ)
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Speaker Author-1 
Date Time 2007-08-03 11:45:00 
Presentation Time 30 minutes 
Registration for SS 
Paper # SS2007-29 
Volume (vol) vol.107 
Number (no) no.176 
Page pp.77-82 
Date of Issue 2007-07-26 (SS) 

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