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.
Share this article
Learn to build a solid safety case for rail control systems using formal verification
Fill out your information here.
More News & Articles
When replacing relay interlockings, most conversations start with technology. The better starting point is governance: how do you make sure you can still change parts of the system 20 years from now? We look at what Open Signaling means in practice, and how our Stockholm Metro pilot was designed for replaceability from day one.
Prover, RATP and Systerel publish the unified HLL 4.0 specification, keeping the rail industry's formal verification language open and free of dialects.
Generative AI has entered railway software engineering ahead of the standards governing it. A new CENELEC draft amendment to EN 50716 doesn't add requirements. It clarifies which existing rules apply when AI drafts specs, writes code, or generates test cases, and why those rules are harder to satisfy with generative models than teams might assume.
+46 (0)8 617 68 00