
Experience the power of strategy fusion!
Prover PSL 5.8 introduces strategy fusion, a game-changing feature that allows you to fuse multiple model-checking strategies into one (patent pending). No longer will you need to choose between strategies; strategy fusion blends the strengths of each by running them in parallel, letting them tackle assigned problems effectively as a team. And they become stronger together!
For new users: simplicity meets performance
We’ve crafted a powerful default strategy using Strategy Fusion, perfect for those new to Prover PSL. You don’t need to be an expert in strategy craftsmanship to get started. Simply run Prover PSL without specifying any strategy, and the default will handle most tasks with ease.
For experienced users: enhanced performance
Seasoned users will notice significant performance boosts in both SAT solving and advanced model checking. Prover PSL continues to deliver the best model-checking performance on the market.
Upgrade to Prover PSL 5.8 today and experience model checking with strategy fusion!

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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.


