Satellite event of SEFM 2026 (https://sefm-conference.github.io/2026/)

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INVITED SPEAKERS
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- Speaker 1: Manual A. Martins, University of Aveiro (Portugal)
- Speaker 2: TBA

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OVERVIEW
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Reconfigurable Transition Systems (RTS) are dynamic relational structures (graphs) that evolve along its execution, in the sense that their accessibility relation, their set of nodes or their labelling change when their edges are crossed. These structures have proven to be suitable to compactly represent complex reactive and reconfigurable behaviours. Namely, the ability of reacting or readapting under the influence of certain events is a very distinctive feature of many diverse situations and objects. An autonomous vehicle that changes its route due to a new strike occurring, the behaviour of a software component after a memory disposal, or a DNA mutation as the result of a viral infection, are different examples that witness the importance of modelling about changes in a determined situation. Practical user cases have aroused the interest of the logic community in the study of variants of RTS, by developing formal methods to properly reason about such situations.

This workshop aims to bring together the whole community of researchers working on different ways to model reconfigurable and reactive systems from a formal perspective. This includes theoretical approaches (like hybrid logics, reactive frames, model-update logics, and topological and algebraic semantics), or formalisms designed for specific purposes (like separation logic in software verification, dynamic epistemic logic in AI planning, and others). Also, our goal is to devise novel approaches and potential applications, and share a common perspective on the discipline.

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SUBMISSION GUIDELINES
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Authors are invited to submit, via Easychair, research contributions or experience reports (https://easychair.org/conferences/submissions?a=36870287).

All papers should be written in English and prepared using the specific LNCS templates available athttp://www.springer.de/comp/lncs/authors.html.

There are two categories of submissions:

- FULL PAPERS up to 12 pages (excluding references) – to present original research and the analysis, interpretation and validation of the research findings.

- SHORT PRESENTATIONS up to 4 pages (excluding references) – to present work in progress and preliminary results.

Both kinds of submissions allow system descriptions, to present a new tool, a new tool component or novel extensions to an existing tool aiming at supporting open community approaches, or the use/customisation of an existing tool in the context of reconfigurable transitions systems.

Accepted full papers will be included in the workshop programme and will appear in the workshop LNCS post-proceedings.

Accepted short presentations will be included in the informal proceedings (available online in the Workshop webpage) but not published in the LNCS post-proceedings.

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LIST OF TOPICS
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The scope of the workshop includes (but it is not limited to):

- Reconfigurable transitions systems (RTS)
* Models for the analysis of reconfigurable systems
* Applications of formal models for reconfigurable systems
* Computational tools to animate and analyze RTS
* Generalizations of RTS - Fuzzy RTS, Paraconsistent RTS, Weighted RTS, - Stochastic RTS, etc.
* Featured Transition Systems
* Reconfigurable Cyber Physical Systems

- Logical Methods
* Dynamic Logics, Separation Logics, Dynamic Epistemic Logics for RTS
* Bisimulations and general algebraic constructions
* Model Checking and Tools
* Reactive systems and Process Algebra
* Logics for Cyber Physical Systems
* Topological an Algebraic Semantics
* Applications of AI for RTS


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IMPORTANT DATES
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- Abstract submission: September 8th
- Paper submission: September 13th
- Notification of acceptance: October 16th
- Informal proceedings: November 6th

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PROGRAM CO-CHAIRS
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- Daniel Figueiredo, University of Aveiro (Portugal)
- Duncan Attard, University of Malta (Malta)

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PROGRAM COMMITTEE
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- Luis Soares Barbosa, Universidade Do Minho (Portugal)
- Benjamin Bedregal, Universidade Federal do Rio Grande do Norte (Brazil)
- Mario Benevides, Universidade Federal Fluminense (Brazil)
- Valentin Cassano, Universidad Nacional de Río Cuarto and CONICET (Argentina)
- Madalena Chaves, Centre Inria d'Université Côte d'Azur (France)
- Gabriel Ciobanu, Institute of Computer Science, Romanian Academy (Romania)
- Raul Fervari, Universidad Nacional de Córdoba and CONICET (Argentina)
- Sabine Frittella, Université d'Orleans (France)
- Alexandre Madeira, University of Aveiro (Portugal)
- Sergio Marcelino, IT & Dep. Mathematics IST, University of Lisbon (Portugal)
- Alessandra Palmigiano, Vrije Universiteit Amsterdam (The Netherlands)
- José Proença, FCUP, University of Porto (Portugal)

- Fernando R. Velázquez-Quesada, University of Bergen (Norway)
- Umberto Rivieccio, Universidad Nacional de Educación a Distancia (Spain)
- Regivan Santiago, Universidade Federal do Rio Grande do Norte (Brazil)
- Sonja Smets, ILLC, University of Amsterdam (The Netherlands)
- Ionuț Țuțu, Simion Stoilow Institute of Mathematics of the Romanian Academy (Romania)
- Amanda Vidal, Czech Academy of Sciences (Czech Republic)
- Fan Yang, Utrecht University (The Netherlands)

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PUBLICATION
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Accepted full papers will be published by Springer in a volume of Lecture Notes in Computer Science (http://www.springer.com/lncs), which will collect contributions to some workshops co-located with SEFM 2026.

Condition for inclusion in proceedings is that at least one of the co-authors has presented the paper at the Workshop.

Similarly to the last editions of ReacTS, we are exploring the possibility of inviting selected contributions' authors to submit extended versions to a special issue, e.g. to the Journal of Applied Logics.

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CONTACT
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If you have any problems or questions, please contact us via e-mail at:

daniel.figueiredo@ua.pt / duncan.attard@um.edu.mt