Release 3.2.1 – 2021-03-08
We are very pleased to announce the release of Copilot 3.2.1, a stream-based DSL for writing and monitoring embedded C programs, with an emphasis on correctness and hard realtime requirements. Copilot is typically used as a high-level runtime verification framework, and supports temporal logic (LTL, PTLTL and MTL), clocks and voting algorithms.
Among others, Copilot has been used at the Safety Critical Avionics Systems Branch of NASA Langley Research Center for monitoring test flights of drones.
In collaboration with the development team at Galois, Inc., the new release introduces a backend to their What4 solver frontend. With this addition, it is now possible to prove properties of Copilot specifications using. We thank Galois for their help and their contribution.
The second big focus of this release was the documentation: the public API documentation has been improved and completed.
Additionally, several small improvements and fixes are made in the C99 code generator.
Copilot is distributed under the BSD-3-Clause licence, which can be found here.
We are grateful for NASA Contract NNL08AD13T to Galois, Inc. and the National Institute of Aerospace, which partially supported this work.
Additionally NASA Langley contracts 80LARC17C0004 and NNL09AA00A supported further development of Copilot.
We would like to thank Kaveh Darafsheh (NASA Langley Research Center) for his help with testing Copilot. In addition numerous people have helped with smaller things, reporting bugs etc. Thanks to all of them!