13 Search Results for "Leucker, Martin"

Document
DOI: 10.4230/LIPIcs.ECOOP.2023.21
Automata Learning with an Incomplete Teacher

Authors: Mark Moeller, Thomas Wiener, Alaia Solko-Breslin, Caleb Koch, Nate Foster, and Alexandra Silva

Published in: LIPIcs, Volume 263, 37th European Conference on Object-Oriented Programming (ECOOP 2023)

Abstract
The preceding decade has seen significant interest in use of active learning to build models of programs and protocols. But existing algorithms assume the existence of an idealized oracle - a so-called Minimally Adequate Teacher (MAT) - that cannot be fully realized in practice and so is usually approximated with testing. This work proposes a new framework for active learning based on an incomplete teacher. This new formulation, called iMAT, neatly handles scenarios in which the teacher has access to only a finite number of tests or otherwise has gaps in its knowledge. We adapt Angluin’s L^⋆ algorithm for learning finite automata to incomplete teachers and we build a prototype implementation in OCaml that uses an SMT solver to help fill in information not supplied by the teacher. We demonstrate the behavior of our iMAT prototype on a variety of learning problems from a standard benchmark suite.
Cite as

Mark Moeller, Thomas Wiener, Alaia Solko-Breslin, Caleb Koch, Nate Foster, and Alexandra Silva. Automata Learning with an Incomplete Teacher. In 37th European Conference on Object-Oriented Programming (ECOOP 2023). Leibniz International Proceedings in Informatics (LIPIcs), Volume 263, pp. 21:1-21:30, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2023)

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@InProceedings{moeller_et_al:LIPIcs.ECOOP.2023.21,
  author =	{Moeller, Mark and Wiener, Thomas and Solko-Breslin, Alaia and Koch, Caleb and Foster, Nate and Silva, Alexandra},
  title =	{{Automata Learning with an Incomplete Teacher}},
  booktitle =	{37th European Conference on Object-Oriented Programming (ECOOP 2023)},
  pages =	{21:1--21:30},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-95977-281-5},
  ISSN =	{1868-8969},
  year =	{2023},
  volume =	{263},
  editor =	{Ali, Karim and Salvaneschi, Guido},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/LIPIcs.ECOOP.2023.21},
  URN =		{urn:nbn:de:0030-drops-182145},
  doi =		{10.4230/LIPIcs.ECOOP.2023.21},
  annote =	{Keywords: Finite Automata, Active Learning, SMT Solvers}
}
Document
Artifact
DOI: 10.4230/DARTS.9.2.21
Automata Learning with an Incomplete Teacher (Artifact)

Authors: Mark Moeller, Thomas Wiener, Alaia Solko-Breslin, Caleb Koch, Nate Foster, and Alexandra Silva

Published in: DARTS, Volume 9, Issue 2, Special Issue of the 37th European Conference on Object-Oriented Programming (ECOOP 2023)

Abstract
We provide an implementation of the automata learning software described in the associated ECOOP article. In particular, the artifact is a Docker image with the source code for nerode and nerode-learn, along with the scripts and benchmark inputs needed to reproduce the experiments described in the paper.
Cite as

Mark Moeller, Thomas Wiener, Alaia Solko-Breslin, Caleb Koch, Nate Foster, and Alexandra Silva. Automata Learning with an Incomplete Teacher (Artifact). In Special Issue of the 37th European Conference on Object-Oriented Programming (ECOOP 2023). Dagstuhl Artifacts Series (DARTS), Volume 9, Issue 2, pp. 21:1-21:3, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2023)

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@Article{moeller_et_al:DARTS.9.2.21,
  author =	{Moeller, Mark and Wiener, Thomas and Solko-Breslin, Alaia and Koch, Caleb and Foster, Nate and Silva, Alexandra},
  title =	{{Automata Learning with an Incomplete Teacher (Artifact)}},
  pages =	{21:1--21:3},
  journal =	{Dagstuhl Artifacts Series},
  ISSN =	{2509-8195},
  year =	{2023},
  volume =	{9},
  number =	{2},
  editor =	{Moeller, Mark and Wiener, Thomas and Solko-Breslin, Alaia and Koch, Caleb and Foster, Nate and Silva, Alexandra},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/DARTS.9.2.21},
  URN =		{urn:nbn:de:0030-drops-182612},
  doi =		{10.4230/DARTS.9.2.21},
  annote =	{Keywords: Finite Automata, Active Learning, SMT Solvers}
}
Document
DOI: 10.4230/DagRep.9.10.95
Analysis of Autonomous Mobile Collectives in Complex Physical Environments (Dagstuhl Seminar 19432)

Authors: Mario Gleirscher, Anne E. Haxthausen, Martin Leucker, and Sven Linker

Published in: Dagstuhl Reports, Volume 9, Issue 10 (2020)

Abstract
This report documents the program and the outcomes of Dagstuhl Seminar 19432 "Analysis of Autonomous Mobile Collectives in Complex Physical Environments". Our working hypothesis for this seminar was that for systems of such complexity and criticality, the trustworthy certification and the successful operation in society will strongly benefit from the coordinated application of several rigorous engineering methods and formal analysis techniques. In this context, we discussed the state-of-the-art based on the working example of a Smart Farm. Our aim was to understand the practical challenges and the capabilities and limitations of recent formal modelling and analysis techniques when tackling these challenges, and to initiate a special research community on the verification of autonomous collectives.
Cite as

Mario Gleirscher, Anne E. Haxthausen, Martin Leucker, and Sven Linker. Analysis of Autonomous Mobile Collectives in Complex Physical Environments (Dagstuhl Seminar 19432). In Dagstuhl Reports, Volume 9, Issue 10, pp. 95-116, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2020)

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@Article{gleirscher_et_al:DagRep.9.10.95,
  author =	{Gleirscher, Mario and Haxthausen, Anne E. and Leucker, Martin and Linker, Sven},
  title =	{{Analysis of Autonomous Mobile Collectives in Complex Physical Environments (Dagstuhl Seminar 19432)}},
  pages =	{95--116},
  journal =	{Dagstuhl Reports},
  ISSN =	{2192-5283},
  year =	{2020},
  volume =	{9},
  number =	{10},
  editor =	{Gleirscher, Mario and Haxthausen, Anne E. and Leucker, Martin and Linker, Sven},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/DagRep.9.10.95},
  URN =		{urn:nbn:de:0030-drops-118579},
  doi =		{10.4230/DagRep.9.10.95},
  annote =	{Keywords: autonomous collectives, control engineering, formal verification, hybrid systems, uncertainty and risk}
}
Document
DOI: 10.4230/DagRep.7.11.59
A Shared Challenge in Behavioural Specification (Dagstuhl Seminar 17462)

Authors: Klaus Havelund, Martin Leucker, Giles Reger, and Volker Stolz

Published in: Dagstuhl Reports, Volume 7, Issue 11 (2018)

Abstract
This report documents the program and the outcomes of Dagstuhl Seminar 17462 "A Shared Challenge in Behavioural Specification". The seminar considered the issue of behavioral specification with a focus on its usage in Runtime Verification. The seminar was motivated by the observations that, whilst the field of Runtime Verification is becoming more mature, there is a lack of common specification language, in the main part due to the rich setting allowing for highly expressive languages. The aim of the Seminar was to shed light on the similarities and differences between the different existing languages, and specifically, suggest directions for future collaboration and research. The seminar consisted of two talk sessions, two working group sessions, and a feedback and reflection session. Working group topics were suggested and agreed in response to points raised in talks. One significant outcome was the proposal of a shared challenge project in which different Runtime Verification approaches can be compared, as outlined in one of the working group reports.
Cite as

Klaus Havelund, Martin Leucker, Giles Reger, and Volker Stolz. A Shared Challenge in Behavioural Specification (Dagstuhl Seminar 17462). In Dagstuhl Reports, Volume 7, Issue 11, pp. 59-85, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2018)

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@Article{havelund_et_al:DagRep.7.11.59,
  author =	{Havelund, Klaus and Leucker, Martin and Reger, Giles and Stolz, Volker},
  title =	{{A Shared Challenge in Behavioural Specification (Dagstuhl Seminar 17462)}},
  pages =	{59--85},
  journal =	{Dagstuhl Reports},
  ISSN =	{2192-5283},
  year =	{2018},
  volume =	{7},
  number =	{11},
  editor =	{Havelund, Klaus and Leucker, Martin and Reger, Giles and Stolz, Volker},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/DagRep.7.11.59},
  URN =		{urn:nbn:de:0030-drops-86716},
  doi =		{10.4230/DagRep.7.11.59},
  annote =	{Keywords: behavioural specification, dynamic properties, runtime verification, temporal logic}
}
Document
DOI: 10.4230/LIPIcs.CONCUR.2017.29
Model-Checking Counting Temporal Logics on Flat Structures

Authors: Normann Decker, Peter Habermehl, Martin Leucker, Arnaud Sangnier, and Daniel Thoma

Published in: LIPIcs, Volume 85, 28th International Conference on Concurrency Theory (CONCUR 2017)

Abstract
We study several extensions of linear-time and computation-tree temporal logics with quantifiers that allow for counting how often certain properties hold. For most of these extensions, the model-checking problem is undecidable, but we show that decidability can be recovered by considering flat Kripke structures where each state belongs to at most one simple loop. Most decision procedures are based on results on (flat) counter systems where counters are used to implement the evaluation of counting operators.
Cite as

Normann Decker, Peter Habermehl, Martin Leucker, Arnaud Sangnier, and Daniel Thoma. Model-Checking Counting Temporal Logics on Flat Structures. In 28th International Conference on Concurrency Theory (CONCUR 2017). Leibniz International Proceedings in Informatics (LIPIcs), Volume 85, pp. 29:1-29:17, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2017)

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@InProceedings{decker_et_al:LIPIcs.CONCUR.2017.29,
  author =	{Decker, Normann and Habermehl, Peter and Leucker, Martin and Sangnier, Arnaud and Thoma, Daniel},
  title =	{{Model-Checking Counting Temporal Logics on Flat Structures}},
  booktitle =	{28th International Conference on Concurrency Theory (CONCUR 2017)},
  pages =	{29:1--29:17},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-95977-048-4},
  ISSN =	{1868-8969},
  year =	{2017},
  volume =	{85},
  editor =	{Meyer, Roland and Nestmann, Uwe},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/LIPIcs.CONCUR.2017.29},
  URN =		{urn:nbn:de:0030-drops-77709},
  doi =		{10.4230/LIPIcs.CONCUR.2017.29},
  annote =	{Keywords: Counting Temporal Logic, Model checking, Flat Kripke Structure}
}
Document
DOI: 10.4230/OASIcs.MCPS.2014.133
OR.NET - Approaches for Risk Analysis and Measures of Dynamically Interconnected Medical Devices

Authors: Franziska Kühn, Martin Leucker, and Alexander Mildner

Published in: OASIcs, Volume 36, 5th Workshop on Medical Cyber-Physical Systems (2014)

Abstract
Nowadays, it lacks an open, standardized and dynamic interconnection of medical devices. All existing combinations of medical devices consist of isolated solutions with proprietary interfaces, as no common standards for networking and the exchange of data of medical devices exist. This situation leads to confusing operating rooms and inefficient operations. Thus, new strategies need to be developed for the authorization of dynamically interconnected medical devices. Primarily, those concern of an acquisition and methodical adaption of new requirements and risks resulting from this way of interconnection. The approach is to develop a method for a risk analysis for interconnected medical devices, which is structured modular and consists of a risk assessment of the standalone device and a risk analysis for the interconnection considering the risks involved in the transfer of functions. When interconnecting the medical devices the risk analysis of each of the devices is taken and they are compared by a gap analysis. Through this strategy it will be possible to realize a standard-compliant dynamic interconnection of medical products, which would be advantageous both for clinic operators and producers. This paper presents the current situation of the authorization of combined medical devices and proposes a strategy for the risk management of dynamically interconnected medical devices as a substantial part of the authorization.
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Franziska Kühn, Martin Leucker, and Alexander Mildner. OR.NET - Approaches for Risk Analysis and Measures of Dynamically Interconnected Medical Devices. In 5th Workshop on Medical Cyber-Physical Systems. Open Access Series in Informatics (OASIcs), Volume 36, pp. 133-136, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2014)

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@InProceedings{kuhn_et_al:OASIcs.MCPS.2014.133,
  author =	{K\"{u}hn, Franziska and Leucker, Martin and Mildner, Alexander},
  title =	{{OR.NET - Approaches for Risk Analysis and Measures of Dynamically Interconnected Medical Devices}},
  booktitle =	{5th Workshop on Medical Cyber-Physical Systems},
  pages =	{133--136},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-939897-66-8},
  ISSN =	{2190-6807},
  year =	{2014},
  volume =	{36},
  editor =	{Turau, Volker and Kwiatkowska, Marta and Mangharam, Rahul and Weyer, Christoph},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/OASIcs.MCPS.2014.133},
  URN =		{urn:nbn:de:0030-drops-45300},
  doi =		{10.4230/OASIcs.MCPS.2014.133},
  annote =	{Keywords: Modular Risk Analysis, Medical Device Interconnection, OR.NET, Development Method}
}
Document
DOI: 10.4230/DagSemProc.10451.1
10451 Abstracts Collection – Runtime Verification, Diagnosis, Planning and Control for Autonomous Systems

Authors: Klaus Havelund, Martin Leucker, Martin Sachenbacher, Oleg Sokolsky, and Brian C. Williams

Published in: Dagstuhl Seminar Proceedings, Volume 10451, Runtime Verification, Diagnosis, Planning and Control for Autonomous Systems (2011)

Abstract
From November 7 to 12, 2010, the Dagstuhl Seminar 10451 ``Runtime Verification, Diagnosis, Planning and Control for Autonomous Systems'' was held in Schloss Dagstuhl~--~Leibniz Center for Informatics. During the seminar, 35 participants presented their current research and discussed ongoing work and open problems. This document puts together abstracts of the presentations given during the seminar, and provides links to extended abstracts or full papers, if available.
Cite as

Klaus Havelund, Martin Leucker, Martin Sachenbacher, Oleg Sokolsky, and Brian C. Williams. 10451 Abstracts Collection – Runtime Verification, Diagnosis, Planning and Control for Autonomous Systems. In Runtime Verification, Diagnosis, Planning and Control for Autonomous Systems. Dagstuhl Seminar Proceedings, Volume 10451, pp. 1-15, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2011)

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@InProceedings{havelund_et_al:DagSemProc.10451.1,
  author =	{Havelund, Klaus and Leucker, Martin and Sachenbacher, Martin and Sokolsky, Oleg and Williams, Brian C.},
  title =	{{10451 Abstracts Collection – Runtime Verification, Diagnosis, Planning and Control for Autonomous Systems}},
  booktitle =	{Runtime Verification, Diagnosis, Planning and Control for Autonomous Systems},
  pages =	{1--15},
  series =	{Dagstuhl Seminar Proceedings (DagSemProc)},
  ISSN =	{1862-4405},
  year =	{2011},
  volume =	{10451},
  editor =	{Klaus Havelund and Martin Leucker and Martin Sachenbacher and Oleg Sokolsky and Brian C. Williams},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/DagSemProc.10451.1},
  URN =		{urn:nbn:de:0030-drops-29487},
  doi =		{10.4230/DagSemProc.10451.1},
  annote =	{Keywords: Runtime Verification, Model-based Diagnosis, Planning, Control, Autonomous Systems}
}
Document
DOI: 10.4230/DagSemProc.10451.2
10451 Executive Summary – Runtime Verification, Diagnosis, Planning and Control for Autonomous Systems

Authors: Klaus Havelund, Martin Leucker, Martin Sachenbacher, Oleg Sokolsky, and Brian C. Williams

Published in: Dagstuhl Seminar Proceedings, Volume 10451, Runtime Verification, Diagnosis, Planning and Control for Autonomous Systems (2011)

Abstract
From November 7 to 12, 2010, the Dagstuhl Seminar 10451 'Runtime Verification, Diagnosis, Planning and Control for Autonomous Systems' was held in Schloss Dagstuhl – Leibniz Center for Informatics. During the seminar, 35 participants presented their current research and discussed ongoing work and open problems. This document puts together abstracts of the presentations given during the seminar, and provides links to extended abstracts or full papers, if available.
Cite as

Klaus Havelund, Martin Leucker, Martin Sachenbacher, Oleg Sokolsky, and Brian C. Williams. 10451 Executive Summary – Runtime Verification, Diagnosis, Planning and Control for Autonomous Systems. In Runtime Verification, Diagnosis, Planning and Control for Autonomous Systems. Dagstuhl Seminar Proceedings, Volume 10451, pp. 1-4, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2011)

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@InProceedings{havelund_et_al:DagSemProc.10451.2,
  author =	{Havelund, Klaus and Leucker, Martin and Sachenbacher, Martin and Sokolsky, Oleg and Williams, Brian C.},
  title =	{{10451 Executive Summary – Runtime Verification, Diagnosis, Planning and Control for Autonomous Systems}},
  booktitle =	{Runtime Verification, Diagnosis, Planning and Control for Autonomous Systems},
  pages =	{1--4},
  series =	{Dagstuhl Seminar Proceedings (DagSemProc)},
  ISSN =	{1862-4405},
  year =	{2011},
  volume =	{10451},
  editor =	{Klaus Havelund and Martin Leucker and Martin Sachenbacher and Oleg Sokolsky and Brian C. Williams},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/DagSemProc.10451.2},
  URN =		{urn:nbn:de:0030-drops-29476},
  doi =		{10.4230/DagSemProc.10451.2},
  annote =	{Keywords: Runtime Verification, Model-based Diagnosis, Planning, Control, Autonomous Systems}
}
Document
DOI: 10.4230/DagSemProc.08332.1
08332 Abstracts Collection – Distributed Verification and Grid Computing

Authors: Henri E. Bal, Lubos Brim, and Martin Leucker

Published in: Dagstuhl Seminar Proceedings, Volume 8332, Distributed Verification and Grid Computing (2008)

Abstract
From 08/10/2008 to 08/14/2008 the Dagstuhl Seminar 08332 ``Distributed Verification and Grid Computing'' was held in the International Conference and Research Center (IBFI), Schloss Dagstuhl. During the seminar, several participants presented their current research, and ongoing work and open problems were discussed. Abstracts of the presentations given during the seminar as well as abstracts of seminar results and ideas are put together in this paper. The first section describes the seminar topics and goals in general. Links to extended abstracts or full papers are provided, if available.
Cite as

Henri E. Bal, Lubos Brim, and Martin Leucker. 08332 Abstracts Collection – Distributed Verification and Grid Computing. In Distributed Verification and Grid Computing. Dagstuhl Seminar Proceedings, Volume 8332, pp. 1-10, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2008)

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@InProceedings{bal_et_al:DagSemProc.08332.1,
  author =	{Bal, Henri E. and Brim, Lubos and Leucker, Martin},
  title =	{{08332 Abstracts Collection – Distributed Verification and Grid Computing}},
  booktitle =	{Distributed Verification and Grid Computing},
  pages =	{1--10},
  series =	{Dagstuhl Seminar Proceedings (DagSemProc)},
  ISSN =	{1862-4405},
  year =	{2008},
  volume =	{8332},
  editor =	{Henri E. Bal and Lubos Brim and Martin Leucker},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/DagSemProc.08332.1},
  URN =		{urn:nbn:de:0030-drops-16335},
  doi =		{10.4230/DagSemProc.08332.1},
  annote =	{Keywords: Parallel Model Checking, Grid Computing, Verification}
}
Document
DOI: 10.4230/DagSemProc.08332.2
08332 Executive Summary – Distributed Verification and Grid Computing

Authors: Henri E. Bal, Lubos Brim, and Martin Leucker

Published in: Dagstuhl Seminar Proceedings, Volume 8332, Distributed Verification and Grid Computing (2008)

Abstract
The Dagstuhl Seminar on Distributed Verification and Grid Computing took place from 10.08.2008 to 14.08.2008 and brought together two groups of researchers to discuss their recent work and recent trends related to parallel verification of large scale computer systems on large scale grids. In total, 29 experts from 12 countries attended the seminar.
Cite as

Henri E. Bal, Lubos Brim, and Martin Leucker. 08332 Executive Summary – Distributed Verification and Grid Computing. In Distributed Verification and Grid Computing. Dagstuhl Seminar Proceedings, Volume 8332, pp. 1-2, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2008)

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@InProceedings{bal_et_al:DagSemProc.08332.2,
  author =	{Bal, Henri E. and Brim, Lubos and Leucker, Martin},
  title =	{{08332 Executive Summary – Distributed Verification and Grid Computing}},
  booktitle =	{Distributed Verification and Grid Computing},
  pages =	{1--2},
  series =	{Dagstuhl Seminar Proceedings (DagSemProc)},
  ISSN =	{1862-4405},
  year =	{2008},
  volume =	{8332},
  editor =	{Henri E. Bal and Lubos Brim and Martin Leucker},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/DagSemProc.08332.2},
  URN =		{urn:nbn:de:0030-drops-16329},
  doi =		{10.4230/DagSemProc.08332.2},
  annote =	{Keywords: Grid computing, verification, parallel computing, model checking}
}
Document
DOI: 10.4230/DagSemProc.08332.3
A Typical Verification Challenge for the GRID

Authors: Jaco van de Pol

Published in: Dagstuhl Seminar Proceedings, Volume 8332, Distributed Verification and Grid Computing (2008)

Abstract
A typical verification challenge for the GRID community is presented. The concrete challenge is to implement a simple recursive algorithm for finding the strongly connected components in a graph. The graph is typically stored in the collective memory of a number of computers, so a distributed algorithm is necessary. The implementation should be efficient and scalable, and separate synchronization and implementation details from the purely algorithmic aspects. In the end, a framework is envisaged for distributed algorithms on very large graphs. This would be useful to explore various alternative algorithmic choices.
Cite as

Jaco van de Pol. A Typical Verification Challenge for the GRID. In Distributed Verification and Grid Computing. Dagstuhl Seminar Proceedings, Volume 8332, pp. 1-2, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2008)

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@InProceedings{vandepol:DagSemProc.08332.3,
  author =	{van de Pol, Jaco},
  title =	{{A Typical Verification Challenge for the GRID}},
  booktitle =	{Distributed Verification and Grid Computing},
  pages =	{1--2},
  series =	{Dagstuhl Seminar Proceedings (DagSemProc)},
  ISSN =	{1862-4405},
  year =	{2008},
  volume =	{8332},
  editor =	{Henri E. Bal and Lubos Brim and Martin Leucker},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/DagSemProc.08332.3},
  URN =		{urn:nbn:de:0030-drops-16293},
  doi =		{10.4230/DagSemProc.08332.3},
  annote =	{Keywords: Strongly connected components, distributed algorithms, breadth first search}
}
Document
DOI: 10.4230/DagSemProc.08332.4
Efficient Large-Scale Model Checking

Authors: Kees Verstoep, Henri E. Bal, Jiri Barnat, and Lubos Brim

Published in: Dagstuhl Seminar Proceedings, Volume 8332, Distributed Verification and Grid Computing (2008)

Abstract
Model checking is a popular technique to systematically and automatically verify system properties. Unfortunately, the well-known state explosion problem often limits the extent to which it can be applied to realistic specifications, due to the huge resulting memory requirements. Distributed memory model checkers exist, but have thus far only been evaluated on small-scale clusters, with mixed results. We examine one well-known distributed model checker in detail, and show how a number of additional optimizations in its runtime system enable it to efficiently check very demanding problem instances on a large-scale, multi-core compute cluster. We analyze the impact of the distributed algorithms employed, the problem instance characteristics and network overhead. Finally, we show that the model checker can even obtain good performance in a high-bandwidth computational grid environment.
Cite as

Kees Verstoep, Henri E. Bal, Jiri Barnat, and Lubos Brim. Efficient Large-Scale Model Checking. In Distributed Verification and Grid Computing. Dagstuhl Seminar Proceedings, Volume 8332, pp. 1-15, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2008)

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@InProceedings{verstoep_et_al:DagSemProc.08332.4,
  author =	{Verstoep, Kees and Bal, Henri E. and Barnat, Jiri and Brim, Lubos},
  title =	{{Efficient Large-Scale Model Checking}},
  booktitle =	{Distributed Verification and Grid Computing},
  pages =	{1--15},
  series =	{Dagstuhl Seminar Proceedings (DagSemProc)},
  ISSN =	{1862-4405},
  year =	{2008},
  volume =	{8332},
  editor =	{Henri E. Bal and Lubos Brim and Martin Leucker},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/DagSemProc.08332.4},
  URN =		{urn:nbn:de:0030-drops-16309},
  doi =		{10.4230/DagSemProc.08332.4},
  annote =	{Keywords: Distributed model checking, Grid-based model checking}
}
Document
DOI: 10.4230/DagSemProc.08332.5
Verification of MPI-based Computations

Authors: Stephen F. Siegel

Published in: Dagstuhl Seminar Proceedings, Volume 8332, Distributed Verification and Grid Computing (2008)

Abstract
The Message Passing Interface is a widely-used parallel programming model and is the effective standard for high-performance scientific computing. It has also been used in parallel model checkers, such as DiVinE. In this talk we discuss the verification problem for MPI-based programs. The MPI is quite large and the semantics complex. Nevertheless, by restricting to a certain subset of MPI, the verification problem becomes tractable. Certain constructs outside of this subset (such as wildcard receives) can lead to a rapid blowup in the number of states, but MPI-specific reduction techniques have led to progress in combating this state explosion. Specifying correctness is another challenge. One approach is to use a trusted sequential version of the program as the specification, and use model checking and symbolic execution techniques to establish the functional equivalence of the sequential and parallel versions. This approach is supported in extsc{Mpi-Spin}, an extension to the model checker extsc{Spin} for verifying MPI-based programs.
Cite as

Stephen F. Siegel. Verification of MPI-based Computations. In Distributed Verification and Grid Computing. Dagstuhl Seminar Proceedings, Volume 8332, pp. 1-3, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2008)

Copy BibTex To Clipboard

@InProceedings{siegel:DagSemProc.08332.5,
  author =	{Siegel, Stephen F.},
  title =	{{Verification of MPI-based Computations}},
  booktitle =	{Distributed Verification and Grid Computing},
  pages =	{1--3},
  series =	{Dagstuhl Seminar Proceedings (DagSemProc)},
  ISSN =	{1862-4405},
  year =	{2008},
  volume =	{8332},
  editor =	{Henri E. Bal and Lubos Brim and Martin Leucker},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/DagSemProc.08332.5},
  URN =		{urn:nbn:de:0030-drops-16316},
  doi =		{10.4230/DagSemProc.08332.5},
  annote =	{Keywords: MPI, Spin, model checking, MPI-Spin, symbolic execution}
}
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