Published in: LITES, Volume 8, Issue 2 (2022): Special Issue on Distributed Hybrid Systems. Leibniz Transactions on Embedded Systems, Volume 8, Issue 2
Pierre Courtieu, Lionel Rieg, Sébastien Tixeuil, and Xavier Urbain. Swarms of Mobile Robots: Towards Versatility with Safety. In LITES, Volume 8, Issue 2 (2022): Special Issue on Distributed Hybrid Systems. Leibniz Transactions on Embedded Systems, Volume 8, Issue 2, pp. 02:1-02:36, Schloss Dagstuhl - Leibniz-Zentrum für Informatik (2022)
@Article{courtieu_et_al:LITES.8.2.2, author = {Courtieu, Pierre and Rieg, Lionel and Tixeuil, S\'{e}bastien and Urbain, Xavier}, title = {{Swarms of Mobile Robots: Towards Versatility with Safety}}, journal = {Leibniz Transactions on Embedded Systems}, pages = {02:1--02:36}, ISSN = {2199-2002}, year = {2022}, volume = {8}, number = {2}, publisher = {Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik}, address = {Dagstuhl, Germany}, URL = {https://drops.dagstuhl.de/entities/document/10.4230/LITES.8.2.2}, doi = {10.4230/LITES.8.2.2}, annote = {Keywords: distributed algorithm, mobile autonomous robots, formal proof} }
Published in: LIPIcs, Volume 171, 31st International Conference on Concurrency Theory (CONCUR 2020)
Parosh Aziz Abdulla, Mohamed Faouzi Atig, Vrunda Dave, and Shankara Narayanan Krishna. On the Separability Problem of String Constraints. In 31st International Conference on Concurrency Theory (CONCUR 2020). Leibniz International Proceedings in Informatics (LIPIcs), Volume 171, pp. 16:1-16:19, Schloss Dagstuhl - Leibniz-Zentrum für Informatik (2020)
@InProceedings{abdulla_et_al:LIPIcs.CONCUR.2020.16, author = {Abdulla, Parosh Aziz and Atig, Mohamed Faouzi and Dave, Vrunda and Krishna, Shankara Narayanan}, title = {{On the Separability Problem of String Constraints}}, booktitle = {31st International Conference on Concurrency Theory (CONCUR 2020)}, pages = {16:1--16:19}, series = {Leibniz International Proceedings in Informatics (LIPIcs)}, ISBN = {978-3-95977-160-3}, ISSN = {1868-8969}, year = {2020}, volume = {171}, editor = {Konnov, Igor and Kov\'{a}cs, Laura}, publisher = {Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik}, address = {Dagstuhl, Germany}, URL = {https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.CONCUR.2020.16}, URN = {urn:nbn:de:0030-drops-128286}, doi = {10.4230/LIPIcs.CONCUR.2020.16}, annote = {Keywords: string constraints, separability, interpolants} }
Published in: LIPIcs, Volume 122, 38th IARCS Annual Conference on Foundations of Software Technology and Theoretical Computer Science (FSTTCS 2018)
Parosh Aziz Abdulla, Mohamed Faouzi Atig, Shankara Narayanan Krishna, and Shaan Vaidya. Verification of Timed Asynchronous Programs. In 38th IARCS Annual Conference on Foundations of Software Technology and Theoretical Computer Science (FSTTCS 2018). Leibniz International Proceedings in Informatics (LIPIcs), Volume 122, pp. 8:1-8:16, Schloss Dagstuhl - Leibniz-Zentrum für Informatik (2018)
@InProceedings{abdulla_et_al:LIPIcs.FSTTCS.2018.8, author = {Abdulla, Parosh Aziz and Atig, Mohamed Faouzi and Krishna, Shankara Narayanan and Vaidya, Shaan}, title = {{Verification of Timed Asynchronous Programs}}, booktitle = {38th IARCS Annual Conference on Foundations of Software Technology and Theoretical Computer Science (FSTTCS 2018)}, pages = {8:1--8:16}, series = {Leibniz International Proceedings in Informatics (LIPIcs)}, ISBN = {978-3-95977-093-4}, ISSN = {1868-8969}, year = {2018}, volume = {122}, editor = {Ganguly, Sumit and Pandya, Paritosh}, publisher = {Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik}, address = {Dagstuhl, Germany}, URL = {https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.FSTTCS.2018.8}, URN = {urn:nbn:de:0030-drops-99076}, doi = {10.4230/LIPIcs.FSTTCS.2018.8}, annote = {Keywords: Reachability, Timed Automata, Asynchronous programs} }
Published in: LIPIcs, Volume 118, 29th International Conference on Concurrency Theory (CONCUR 2018)
Parosh Aziz Abdulla, Mohamed Faouzi Atig, Radu Ciobanu, Richard Mayr, and Patrick Totzke. Universal Safety for Timed Petri Nets is PSPACE-complete. In 29th International Conference on Concurrency Theory (CONCUR 2018). Leibniz International Proceedings in Informatics (LIPIcs), Volume 118, pp. 6:1-6:15, Schloss Dagstuhl - Leibniz-Zentrum für Informatik (2018)
@InProceedings{abdulla_et_al:LIPIcs.CONCUR.2018.6, author = {Abdulla, Parosh Aziz and Atig, Mohamed Faouzi and Ciobanu, Radu and Mayr, Richard and Totzke, Patrick}, title = {{Universal Safety for Timed Petri Nets is PSPACE-complete}}, booktitle = {29th International Conference on Concurrency Theory (CONCUR 2018)}, pages = {6:1--6:15}, series = {Leibniz International Proceedings in Informatics (LIPIcs)}, ISBN = {978-3-95977-087-3}, ISSN = {1868-8969}, year = {2018}, volume = {118}, editor = {Schewe, Sven and Zhang, Lijun}, publisher = {Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik}, address = {Dagstuhl, Germany}, URL = {https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.CONCUR.2018.6}, URN = {urn:nbn:de:0030-drops-95447}, doi = {10.4230/LIPIcs.CONCUR.2018.6}, annote = {Keywords: timed networks, safety checking, Petri nets, coverability} }
Published in: LIPIcs, Volume 118, 29th International Conference on Concurrency Theory (CONCUR 2018)
Mohamed Faouzi Atig, Ahmed Bouajjani, K. Narayan Kumar, and Prakash Saivasan. Verifying Quantitative Temporal Properties of Procedural Programs. In 29th International Conference on Concurrency Theory (CONCUR 2018). Leibniz International Proceedings in Informatics (LIPIcs), Volume 118, pp. 15:1-15:17, Schloss Dagstuhl - Leibniz-Zentrum für Informatik (2018)
@InProceedings{atig_et_al:LIPIcs.CONCUR.2018.15, author = {Atig, Mohamed Faouzi and Bouajjani, Ahmed and Narayan Kumar, K. and Saivasan, Prakash}, title = {{Verifying Quantitative Temporal Properties of Procedural Programs}}, booktitle = {29th International Conference on Concurrency Theory (CONCUR 2018)}, pages = {15:1--15:17}, series = {Leibniz International Proceedings in Informatics (LIPIcs)}, ISBN = {978-3-95977-087-3}, ISSN = {1868-8969}, year = {2018}, volume = {118}, editor = {Schewe, Sven and Zhang, Lijun}, publisher = {Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik}, address = {Dagstuhl, Germany}, URL = {https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.CONCUR.2018.15}, URN = {urn:nbn:de:0030-drops-95531}, doi = {10.4230/LIPIcs.CONCUR.2018.15}, annote = {Keywords: Verification, Formal Methods, Pushdown systems, Visibly pushdown, Quantitative Temporal Properties} }
Published in: LIPIcs, Volume 93, 37th IARCS Annual Conference on Foundations of Software Technology and Theoretical Computer Science (FSTTCS 2017)
Mohamed Faouzi Atig, Ahmed Bouajjani, K. Narayan Kumar, and Prakash Saivasan. Verification of Asynchronous Programs with Nested Locks. In 37th IARCS Annual Conference on Foundations of Software Technology and Theoretical Computer Science (FSTTCS 2017). Leibniz International Proceedings in Informatics (LIPIcs), Volume 93, pp. 11:1-11:14, Schloss Dagstuhl - Leibniz-Zentrum für Informatik (2018)
@InProceedings{atig_et_al:LIPIcs.FSTTCS.2017.11, author = {Atig, Mohamed Faouzi and Bouajjani, Ahmed and Narayan Kumar, K. and Saivasan, Prakash}, title = {{Verification of Asynchronous Programs with Nested Locks}}, booktitle = {37th IARCS Annual Conference on Foundations of Software Technology and Theoretical Computer Science (FSTTCS 2017)}, pages = {11:1--11:14}, series = {Leibniz International Proceedings in Informatics (LIPIcs)}, ISBN = {978-3-95977-055-2}, ISSN = {1868-8969}, year = {2018}, volume = {93}, editor = {Lokam, Satya and Ramanujam, R.}, publisher = {Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik}, address = {Dagstuhl, Germany}, URL = {https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.FSTTCS.2017.11}, URN = {urn:nbn:de:0030-drops-84106}, doi = {10.4230/LIPIcs.FSTTCS.2017.11}, annote = {Keywords: asynchronous programs locks concurrency multi-set pushdown systems, multi-threaded programs, reachability, model checking, verification, nested lockin} }
Published in: LIPIcs, Volume 83, 42nd International Symposium on Mathematical Foundations of Computer Science (MFCS 2017)
Mohamed Faouzi Atig, Roland Meyer, Sebastian Muskalla, and Prakash Saivasan. On the Upward/Downward Closures of Petri Nets. In 42nd International Symposium on Mathematical Foundations of Computer Science (MFCS 2017). Leibniz International Proceedings in Informatics (LIPIcs), Volume 83, pp. 49:1-49:14, Schloss Dagstuhl - Leibniz-Zentrum für Informatik (2017)
@InProceedings{atig_et_al:LIPIcs.MFCS.2017.49, author = {Atig, Mohamed Faouzi and Meyer, Roland and Muskalla, Sebastian and Saivasan, Prakash}, title = {{On the Upward/Downward Closures of Petri Nets}}, booktitle = {42nd International Symposium on Mathematical Foundations of Computer Science (MFCS 2017)}, pages = {49:1--49:14}, series = {Leibniz International Proceedings in Informatics (LIPIcs)}, ISBN = {978-3-95977-046-0}, ISSN = {1868-8969}, year = {2017}, volume = {83}, editor = {Larsen, Kim G. and Bodlaender, Hans L. and Raskin, Jean-Francois}, publisher = {Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik}, address = {Dagstuhl, Germany}, URL = {https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.MFCS.2017.49}, URN = {urn:nbn:de:0030-drops-81278}, doi = {10.4230/LIPIcs.MFCS.2017.49}, annote = {Keywords: Petri nets, BPP nets, downward closure, upward closure} }
Published in: LIPIcs, Volume 85, 28th International Conference on Concurrency Theory (CONCUR 2017)
Parosh Aziz Abdulla, C. Aiswarya, and Mohamed Faouzi Atig. Data Multi-Pushdown Automata. In 28th International Conference on Concurrency Theory (CONCUR 2017). Leibniz International Proceedings in Informatics (LIPIcs), Volume 85, pp. 38:1-38:17, Schloss Dagstuhl - Leibniz-Zentrum für Informatik (2017)
@InProceedings{abdulla_et_al:LIPIcs.CONCUR.2017.38, author = {Abdulla, Parosh Aziz and Aiswarya, C. and Atig, Mohamed Faouzi}, title = {{Data Multi-Pushdown Automata}}, booktitle = {28th International Conference on Concurrency Theory (CONCUR 2017)}, pages = {38:1--38:17}, 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.dagstuhl.de/entities/document/10.4230/LIPIcs.CONCUR.2017.38}, URN = {urn:nbn:de:0030-drops-78049}, doi = {10.4230/LIPIcs.CONCUR.2017.38}, annote = {Keywords: Pushdown Systems, Model-Checking, Gap-Order, Bounded Split-Width} }
Published in: LIPIcs, Volume 59, 27th International Conference on Concurrency Theory (CONCUR 2016)
Parosh Aziz Abdulla, Mohamed Faouzi Atig, Ahmed Bouajjani, and Tuan Phong Ngo. The Benefits of Duality in Verifying Concurrent Programs under TSO. In 27th International Conference on Concurrency Theory (CONCUR 2016). Leibniz International Proceedings in Informatics (LIPIcs), Volume 59, pp. 5:1-5:15, Schloss Dagstuhl - Leibniz-Zentrum für Informatik (2016)
@InProceedings{abdulla_et_al:LIPIcs.CONCUR.2016.5, author = {Abdulla, Parosh Aziz and Atig, Mohamed Faouzi and Bouajjani, Ahmed and Ngo, Tuan Phong}, title = {{The Benefits of Duality in Verifying Concurrent Programs under TSO}}, booktitle = {27th International Conference on Concurrency Theory (CONCUR 2016)}, pages = {5:1--5:15}, series = {Leibniz International Proceedings in Informatics (LIPIcs)}, ISBN = {978-3-95977-017-0}, ISSN = {1868-8969}, year = {2016}, volume = {59}, editor = {Desharnais, Jos\'{e}e and Jagadeesan, Radha}, publisher = {Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik}, address = {Dagstuhl, Germany}, URL = {https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.CONCUR.2016.5}, URN = {urn:nbn:de:0030-drops-61710}, doi = {10.4230/LIPIcs.CONCUR.2016.5}, annote = {Keywords: Weak Memory Models, Reachability Problem, Parameterized Systems} }
Published in: LIPIcs, Volume 45, 35th IARCS Annual Conference on Foundations of Software Technology and Theoretical Computer Science (FSTTCS 2015)
Parosh Aziz Abdulla, Mohamed Faouzi Atig, Roland Meyer, and Mehdi Seyed Salehi. What's Decidable about Availability Languages?. In 35th IARCS Annual Conference on Foundations of Software Technology and Theoretical Computer Science (FSTTCS 2015). Leibniz International Proceedings in Informatics (LIPIcs), Volume 45, pp. 192-205, Schloss Dagstuhl - Leibniz-Zentrum für Informatik (2015)
@InProceedings{abdulla_et_al:LIPIcs.FSTTCS.2015.192, author = {Abdulla, Parosh Aziz and Atig, Mohamed Faouzi and Meyer, Roland and Seyed Salehi, Mehdi}, title = {{What's Decidable about Availability Languages?}}, booktitle = {35th IARCS Annual Conference on Foundations of Software Technology and Theoretical Computer Science (FSTTCS 2015)}, pages = {192--205}, series = {Leibniz International Proceedings in Informatics (LIPIcs)}, ISBN = {978-3-939897-97-2}, ISSN = {1868-8969}, year = {2015}, volume = {45}, editor = {Harsha, Prahladh and Ramalingam, G.}, publisher = {Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik}, address = {Dagstuhl, Germany}, URL = {https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.FSTTCS.2015.192}, URN = {urn:nbn:de:0030-drops-56602}, doi = {10.4230/LIPIcs.FSTTCS.2015.192}, annote = {Keywords: Availability, formal languages, emptiness, decidability} }
Published in: LIPIcs, Volume 29, 34th International Conference on Foundation of Software Technology and Theoretical Computer Science (FSTTCS 2014)
Mohamed Faouzi Atig, Ahmed Bouajjani, K. Narayan Kumar, and Prakash Saivasan. On Bounded Reachability Analysis of Shared Memory Systems. In 34th International Conference on Foundation of Software Technology and Theoretical Computer Science (FSTTCS 2014). Leibniz International Proceedings in Informatics (LIPIcs), Volume 29, pp. 611-623, Schloss Dagstuhl - Leibniz-Zentrum für Informatik (2014)
@InProceedings{atig_et_al:LIPIcs.FSTTCS.2014.611, author = {Atig, Mohamed Faouzi and Bouajjani, Ahmed and Narayan Kumar, K. and Saivasan, Prakash}, title = {{On Bounded Reachability Analysis of Shared Memory Systems}}, booktitle = {34th International Conference on Foundation of Software Technology and Theoretical Computer Science (FSTTCS 2014)}, pages = {611--623}, series = {Leibniz International Proceedings in Informatics (LIPIcs)}, ISBN = {978-3-939897-77-4}, ISSN = {1868-8969}, year = {2014}, volume = {29}, editor = {Raman, Venkatesh and Suresh, S. P.}, publisher = {Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik}, address = {Dagstuhl, Germany}, URL = {https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.FSTTCS.2014.611}, URN = {urn:nbn:de:0030-drops-48754}, doi = {10.4230/LIPIcs.FSTTCS.2014.611}, annote = {Keywords: Reachability problem, Pushdown systems, Counter systems} }
Published in: LIPIcs, Volume 29, 34th International Conference on Foundation of Software Technology and Theoretical Computer Science (FSTTCS 2014)
Parosh Aziz Abdulla, Mohamed Faouzi Atig, Ahmet Kara, and Othmane Rezine. Verification of Dynamic Register Automata. In 34th International Conference on Foundation of Software Technology and Theoretical Computer Science (FSTTCS 2014). Leibniz International Proceedings in Informatics (LIPIcs), Volume 29, pp. 653-665, Schloss Dagstuhl - Leibniz-Zentrum für Informatik (2014)
@InProceedings{abdulla_et_al:LIPIcs.FSTTCS.2014.653, author = {Abdulla, Parosh Aziz and Atig, Mohamed Faouzi and Kara, Ahmet and Rezine, Othmane}, title = {{Verification of Dynamic Register Automata}}, booktitle = {34th International Conference on Foundation of Software Technology and Theoretical Computer Science (FSTTCS 2014)}, pages = {653--665}, series = {Leibniz International Proceedings in Informatics (LIPIcs)}, ISBN = {978-3-939897-77-4}, ISSN = {1868-8969}, year = {2014}, volume = {29}, editor = {Raman, Venkatesh and Suresh, S. P.}, publisher = {Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik}, address = {Dagstuhl, Germany}, URL = {https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.FSTTCS.2014.653}, URN = {urn:nbn:de:0030-drops-48787}, doi = {10.4230/LIPIcs.FSTTCS.2014.653}, annote = {Keywords: Verification, Reachability problem, Register automata} }
Published in: LIPIcs, Volume 18, IARCS Annual Conference on Foundations of Software Technology and Theoretical Computer Science (FSTTCS 2012)
Parosh Aziz Abdulla, Mohamed Faouzi Atig, and Jonathan Cederberg. Timed Lossy Channel Systems. In IARCS Annual Conference on Foundations of Software Technology and Theoretical Computer Science (FSTTCS 2012). Leibniz International Proceedings in Informatics (LIPIcs), Volume 18, pp. 374-386, Schloss Dagstuhl - Leibniz-Zentrum für Informatik (2012)
@InProceedings{abdulla_et_al:LIPIcs.FSTTCS.2012.374, author = {Abdulla, Parosh Aziz and Atig, Mohamed Faouzi and Cederberg, Jonathan}, title = {{Timed Lossy Channel Systems}}, booktitle = {IARCS Annual Conference on Foundations of Software Technology and Theoretical Computer Science (FSTTCS 2012)}, pages = {374--386}, series = {Leibniz International Proceedings in Informatics (LIPIcs)}, ISBN = {978-3-939897-47-7}, ISSN = {1868-8969}, year = {2012}, volume = {18}, editor = {D'Souza, Deepak and Radhakrishnan, Jaikumar and Telikepalli, Kavitha}, publisher = {Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik}, address = {Dagstuhl, Germany}, URL = {https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.FSTTCS.2012.374}, URN = {urn:nbn:de:0030-drops-38746}, doi = {10.4230/LIPIcs.FSTTCS.2012.374}, annote = {Keywords: Lossy channel systems, timed automata, model checking} }
Published in: LIPIcs, Volume 13, IARCS Annual Conference on Foundations of Software Technology and Theoretical Computer Science (FSTTCS 2011)
Mohamed Faouzi Atig and Pierre Ganty. Approximating Petri Net Reachability Along Context-free Traces. In IARCS Annual Conference on Foundations of Software Technology and Theoretical Computer Science (FSTTCS 2011). Leibniz International Proceedings in Informatics (LIPIcs), Volume 13, pp. 152-163, Schloss Dagstuhl - Leibniz-Zentrum für Informatik (2011)
@InProceedings{atig_et_al:LIPIcs.FSTTCS.2011.152, author = {Atig, Mohamed Faouzi and Ganty, Pierre}, title = {{Approximating Petri Net Reachability Along Context-free Traces}}, booktitle = {IARCS Annual Conference on Foundations of Software Technology and Theoretical Computer Science (FSTTCS 2011)}, pages = {152--163}, series = {Leibniz International Proceedings in Informatics (LIPIcs)}, ISBN = {978-3-939897-34-7}, ISSN = {1868-8969}, year = {2011}, volume = {13}, editor = {Chakraborty, Supratik and Kumar, Amit}, publisher = {Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik}, address = {Dagstuhl, Germany}, URL = {https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.FSTTCS.2011.152}, URN = {urn:nbn:de:0030-drops-33448}, doi = {10.4230/LIPIcs.FSTTCS.2011.152}, annote = {Keywords: Petri nets, Context-free Grammars, Reachability Problem} }
Published in: LIPIcs, Volume 8, IARCS Annual Conference on Foundations of Software Technology and Theoretical Computer Science (FSTTCS 2010)
Mohamed Faouzi Atig. Global Model Checking of Ordered Multi-Pushdown Systems. In IARCS Annual Conference on Foundations of Software Technology and Theoretical Computer Science (FSTTCS 2010). Leibniz International Proceedings in Informatics (LIPIcs), Volume 8, pp. 216-227, Schloss Dagstuhl - Leibniz-Zentrum für Informatik (2010)
@InProceedings{atig:LIPIcs.FSTTCS.2010.216, author = {Atig, Mohamed Faouzi}, title = {{Global Model Checking of Ordered Multi-Pushdown Systems}}, booktitle = {IARCS Annual Conference on Foundations of Software Technology and Theoretical Computer Science (FSTTCS 2010)}, pages = {216--227}, series = {Leibniz International Proceedings in Informatics (LIPIcs)}, ISBN = {978-3-939897-23-1}, ISSN = {1868-8969}, year = {2010}, volume = {8}, editor = {Lodaya, Kamal and Mahajan, Meena}, publisher = {Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik}, address = {Dagstuhl, Germany}, URL = {https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.FSTTCS.2010.216}, URN = {urn:nbn:de:0030-drops-28653}, doi = {10.4230/LIPIcs.FSTTCS.2010.216}, annote = {Keywords: Concurrent Programs, Pushdown Systems, Global Model-Checking} }
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