IVOIRE Workshop 2022

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Historically, formal methods and supported environments have focused more on only one-half of the quality-assurance process: verification (are we building the software right?). The other half, validation (are we building the right software?) has been given much less attention, i.e., we have fewer automated/push-button tools available for validation, unlike verification.

The IVOIRE project focuses on developing an enhanced formal paradigm based on an extension of the refinement framework that includes a comprehensive validation process and toolchain to perform validation obligations. The main goal of this workshop is to provide a platform for formal methods practitioners, researchers, and academics to discuss various issues associated with validation for formal methods, including but not limited to:

  • Validation obligations or other systematic approaches to validation
  • Relation between refinement and validation, and the interplay between verification and validation
  • Environments and tools to manage the validation process
  • Evaluations, benchmarkings, case studies, etc.

The IVOIRE workshop will be co-located with iFM 2022 in Lugano, Switzerland, taking place on 7 June 2022 (the day before the main conference). The workshop is currently planned to take place physically, like the conference itself.


(Times are subject to change depending on the schedule of the main conference)

  • 09:00–09:10 Welcome note
  • 09:10–10:30 The IVOIRE project (Session Chair: Michael Leuschel)
    • 09:10–09:30 Validation obligations (Atif Mashkoor, JKU Linz, Austria)
    • 09:30–09:50 Formalization of VOs (Fabian Vu, HHU, Düsseldorf, Germany)
    • 09:50–10:10 Abstraction and Refinement of VOs (Sebastian Stock, JKU Linz, Austria)
    • 10:10–10:30 IVOIRE Demo: ProB2-UI (David Geleßus, HHU Düsseldorf, Germany)
  • 10:30–11:00 Coffee break
  • 11:00–13:00 B/Event-B's perspective on validation (Session Chair: Atif Mashkoor)
    • 11:00–11:30 Jean-Pierre Jacquot (University of Lorraine, France)
    • 11:30–12:00 Richard Banach (University of Manchester, UK)
    • 12:00–12:30 Colin Snook (University of Southampton, UK)
    • 12:30–13:00 Dominique Méry (University of Lorraine, France)
  • 13:00–14:30 Lunch break
  • 14:30–16:00 ASM's perspective on validation (Session Chair: Alexander Egyed)
    • 14:30–15:00 Egon Börger (University of Pisa, Italy)
    • 15:00–15:30 Angelo Gargantini (University of Bergamo, Italy)
    • 15:30–16:00 Elvinia Riccobene (University of Milan, Italy)
  • 16:00–16:30 Coffee break
  • 16:30–17:00 Industrial perspective on validation (Session Chair: Michael Leuschel)
    • 16:30–17:00 Thierry Lecomte (CLEARSY, France)
  • 17:00–17:30 Discussion and concluding remarks
  • 18:00 Workshop dinner


Registration for the workshop will be handled by iFM. See their registration page for details.


Workshop chairs:

  • Atif Mashkoor (JKU Linz, Austria)
  • Michael Leuschel (HHU Düsseldorf, Germany)

Workshop organizing committee:

  • Sebastian Stock (JKU Linz, Austria)
  • Fabian Vu (HHU Düsseldorf, Germany)
  • David Geleßus (HHU Düsseldorf, Germany)