2 Search Results for "Hecking-Harbusch, Jesko"

Document
DOI: 10.4230/LIPIcs.CSL.2022.20
Global Winning Conditions in Synthesis of Distributed Systems with Causal Memory

Authors: Bernd Finkbeiner, Manuel Gieseking, Jesko Hecking-Harbusch, and Ernst-Rüdiger Olderog

Published in: LIPIcs, Volume 216, 30th EACSL Annual Conference on Computer Science Logic (CSL 2022)

Abstract
In the synthesis of distributed systems, we automate the development of distributed programs and hardware by automatically deriving correct implementations from formal specifications. For synchronous distributed systems, the synthesis problem is well known to be undecidable. For asynchronous systems, the boundary between decidable and undecidable synthesis problems is a long-standing open question. We study the problem in the setting of Petri games, a framework for distributed systems where asynchronous processes are equipped with causal memory. Petri games extend Petri nets with a distinction between system places and environment places. The components of a distributed system are the players of the game, represented as tokens that exchange information during each synchronization. Previous decidability results for this model are limited to local winning conditions, i.e., conditions that only refer to individual components. In this paper, we consider global winning conditions such as mutual exclusion, i.e., conditions that refer to the state of all components. We provide decidability and undecidability results for global winning conditions. First, we prove for winning conditions given as bad markings that it is decidable whether a winning strategy for the system players exists in Petri games with a bounded number of system players and one environment player. Second, we prove for winning conditions that refer to both good and bad markings that it is undecidable whether a winning strategy for the system players exists in Petri games with at least two system players and one environment player. Our results thus show that, on the one hand, it is indeed possible to use global safety specifications like mutual exclusion in the synthesis of distributed systems. However, on the other hand, adding global liveness specifications results in an undecidable synthesis problem for almost all Petri games.
Cite as

Bernd Finkbeiner, Manuel Gieseking, Jesko Hecking-Harbusch, and Ernst-Rüdiger Olderog. Global Winning Conditions in Synthesis of Distributed Systems with Causal Memory. In 30th EACSL Annual Conference on Computer Science Logic (CSL 2022). Leibniz International Proceedings in Informatics (LIPIcs), Volume 216, pp. 20:1-20:19, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2022)

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@InProceedings{finkbeiner_et_al:LIPIcs.CSL.2022.20,
  author =	{Finkbeiner, Bernd and Gieseking, Manuel and Hecking-Harbusch, Jesko and Olderog, Ernst-R\"{u}diger},
  title =	{{Global Winning Conditions in Synthesis of Distributed Systems with Causal Memory}},
  booktitle =	{30th EACSL Annual Conference on Computer Science Logic (CSL 2022)},
  pages =	{20:1--20:19},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-95977-218-1},
  ISSN =	{1868-8969},
  year =	{2022},
  volume =	{216},
  editor =	{Manea, Florin and Simpson, Alex},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/LIPIcs.CSL.2022.20},
  URN =		{urn:nbn:de:0030-drops-157400},
  doi =		{10.4230/LIPIcs.CSL.2022.20},
  annote =	{Keywords: Synthesis, distributed systems, reactive systems, Petri games, decidability}
}
Document
DOI: 10.4230/LIPIcs.CONCUR.2019.26
Translating Asynchronous Games for Distributed Synthesis

Authors: Raven Beutner, Bernd Finkbeiner, and Jesko Hecking-Harbusch

Published in: LIPIcs, Volume 140, 30th International Conference on Concurrency Theory (CONCUR 2019)

Abstract
In distributed synthesis, a set of process implementations is generated, which together, accomplish an objective against all possible behaviors of the environment. A lot of recent work has focussed on systems with causal memory, i.e., sets of asynchronous processes that exchange their causal histories upon synchronization. Decidability results for this problem have been stated either in terms of control games, which extend Zielonka’s asynchronous automata by partitioning the actions into controllable and uncontrollable, or in terms of Petri games, which extend Petri nets by partitioning the tokens into system and environment players. The precise connection between these two models was so far, however, an open question. In this paper, we provide the first formal connection between control games and Petri games. We establish the equivalence of the two game types based on weak bisimulations between their strategies. For both directions, we show that a game of one type can be translated into an equivalent game of the other type. We provide exponential upper and lower bounds for the translations. Our translations allow to transfer and combine decidability results between the two types of games. Exemplarily, we translate decidability in acyclic communication architectures, originally obtained for control games, to Petri games, and decidability in single-process systems, originally obtained for Petri games, to control games.
Cite as

Raven Beutner, Bernd Finkbeiner, and Jesko Hecking-Harbusch. Translating Asynchronous Games for Distributed Synthesis. In 30th International Conference on Concurrency Theory (CONCUR 2019). Leibniz International Proceedings in Informatics (LIPIcs), Volume 140, pp. 26:1-26:16, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2019)

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@InProceedings{beutner_et_al:LIPIcs.CONCUR.2019.26,
  author =	{Beutner, Raven and Finkbeiner, Bernd and Hecking-Harbusch, Jesko},
  title =	{{Translating Asynchronous Games for Distributed Synthesis}},
  booktitle =	{30th International Conference on Concurrency Theory (CONCUR 2019)},
  pages =	{26:1--26:16},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-95977-121-4},
  ISSN =	{1868-8969},
  year =	{2019},
  volume =	{140},
  editor =	{Fokkink, Wan and van Glabbeek, Rob},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/LIPIcs.CONCUR.2019.26},
  URN =		{urn:nbn:de:0030-drops-109289},
  doi =		{10.4230/LIPIcs.CONCUR.2019.26},
  annote =	{Keywords: synthesis, distributed systems, causal memory, Petri games, control games}
}
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