
Following the joint presentation of a paper at the RSSRail 2023 conference, RATP and Prover have deepened their collaboration to perfect and industrialize the Integral Formal Proof (PFI) methodology. With the recent commissioning of the CBTC update on line 4 of the Paris metro, this approach has led to significant progress in system-level analysis, thereby enhancing passenger safety.
Prover’s expertise in formal methods, particularly through the use of the HLL (High Level Language) and its dedicated tools, combined with the constant commitment of the teams, has led to significant advancements. Our team has thus contributed to the thorough assessment of the tracking function of this CBTC, together with experts from Sig4 Engineering. As a tool provider, expertise provider, and long-time partner of RATP, Prover stands out for its leading position in the field of critical systems analysis, thus ensuring reliable and efficient solutions for transport infrastructures.
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Do you have experience in leading strategic and complex customer projects? Are you looking for an opportunity to leverage your experience throughout our company? Then this role might be right for you! We are now recruiting to a new position as a Commercial Project Management (PM) Lead.
Prover uses formal methods to make railway signaling provably safe. Our solutions build safe, reliable, and cost-efficient systems that move and protect millions of passengers every day. Through our Open Signaling Initiative, we're reshaping how the industry builds and maintains signaling systems across Europe and beyond. Now we're looking for someone to join us and bring AI, LLMs, and agentic workflows into the heart of how we work and what we build.
Meet Prover at RailTech Europe in Utrecht, March 4–5. Visit Booth 2.509 and join our workshop on migration of signaling systems to PLC-based SIL 4 solutions.


