TLA+ Community Event 2026

Co-located with ETAPS 2026 in Torino, Italy, on April 12, 2026.

Accepted presentations

• J. Belzer, J.J. Serrano Mora, A.B. Marcos, C. Lamb: P2P2P (PlusCal to PlantUML to PDF)
• J.-P. Bodeveix, A. Bonenfant, T. Carle, M. Filali, C. Rochange, L. Sylvestre: A generic hardware in-order pipeline architecture model to capture key temporal properties
• Q. Delamea, J. Burman, J. Gurhem, S. Vialle: A Compositional Strategy for Verifying Fault-Tolerant Dynamic Task Graph Scheduling in Modern Cloud Environments
• M. Demirbas: Thinking in TLA+ – Modeling Judgment for System Design
• I. Kokorin, E. Chernatskiy, V. Aksenov: Model-based Testing of Practical Distributed Systems in Actor Model
• I. Konnov: Interactive symbolic testing with TLA+, Apalache, and LLMs
• K. Petrauskas: Extensible Proof Decomposition Rules for TLAPS
• A.C. Ribeiro, M. Mamede, C. Ferreira: Systematic API Testing through Model Checking and Executable Contracts
• U. Yavuz: Verifying differential privacy in TLA+ via self-products
• Y. Zhou, S. Tripakis: Towards Language Model Guided TLA+ Proof Automation

Call for presentations

TLA+ is a language that is used in academia and industry for formally specifying systems. It is supported by verification tools, including the TLC and Apalache model checkers and the TLAPS proof system. PlusCal serves as a frontend for generating TLA+ specifications from an algorithmic language with an imperative flavor.

The TLA+ Community Event serves as a forum where practitioners and researchers interested in the use and further development of the TLA+ specification language and its tools meet and discuss.

Proposals for contributed talks are sollicited that present work of interest to users of TLA+ or PlusCal, such as:

• industrial or academic case studies,
• new tools for TLA+ or add-ons to existing tools,
• innovative use of existing tools or reports on their shortcomings,
• use of TLA+ in education.

There will not be formal proceedings, but the abstracts and presentations will be made available on the Web.

Proposed contributions should be submitted by January 31, 2026 to tla2026@inria.fr. It is expected that the contribution will be presented on 1-2 pages. Longer submissions will be read at the discretion of the program committee.

Participants will be required to register to ETAPS 2026 (early registration deadline: March 10, 2026). We encourage participants to include the workshop dinner on Sunday evening in their registration.

Organizers

• Igor Konnov, researcher in security and formal methods and TU Wien
• Markus Kuppe, Nvidia
• Murat Demirbas, MongoDB
• Stephan Merz, Inria