FDR

CSP refinement checking software tool

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Added 9 Jul 2026

Edited 22 Jul 2026 by Admin · history

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FDR4 is a software tool for analyzing and verifying the correctness of concurrent systems written in CSP (Communicating Sequential Processes) programming language. It includes features such as parallel refinement checking, type-checking, and a powerful debug viewer. FDR4 supports analysis of timed systems and has been designed to efficiently handle large-scale problems.

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🇬🇧Headquartered inUnited Kingdom

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🇬🇧United Kingdom

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