Tool support for correctness-by-construction
Date
2019
Journal Title
Journal ISSN
Volume Title
Publisher
Springer
Abstract
Correctness-by-Construction (CbC) is an approach to incrementally create formally correct programs guided by pre- and postcondition specifications. A program is created using refinement rules that guarantee the resulting implementation is correct with respect to the specification. Although CbC is supposed to lead to code with a low defect rate, it is not prevalent, especially because appropriate tool support is missing. To promote CbC, we provide tool support for CbC-based program development. We present CorC, a graphical and textual IDE to create programs in a simple while-language following the CbC approach. Starting with a specification, our open source tool supports CbC developers in refining a program by a sequence of refinement steps and in verifying the correctness of these refinement steps using the theorem prover KeY. We evaluated the tool with a set of standard examples on CbC where we reveal errors in the provided specification. The evaluation shows that our tool reduces the verification time in comparison to post-hoc verification.
Description
CITATION: Runge, T., et al. 2019. Tool support for correctness-by-construction. Lecture Notes in Computer Science, 11424:25-42, doi:10.1007/978-3-030-16722-6_2.
The original publication is available at https://link.springer.com
The original publication is available at https://link.springer.com
Keywords
Computer programs -- Correctness
Citation
Runge, T., et al. 2019. Tool support for correctness-by-construction. Lecture Notes in Computer Science, 11424:25-42, doi:10.1007/978-3-030-16722-6_2