Using Kani to write and validate Rust code with ChatGPT

As more software developers turn to ChatGPT as a coding assistant, they face the challenge of ensuring the code it generates is error-free and functional. While ChatGPT can aid in coding tasks like refactoring and debugging, its outputs may contain errors, which is where verification tools like Kani become useful, particularly for Rust code. Kani employs automated reasoning to quickly identify potential issues that might be overlooked or require extensive manual testing. By integrating Kani into Rust projects, developers can validate the reliability of code generated by ChatGPT. This process involves setting up Kani in the Rust environment, using it to test for edge cases, and addressing any overflow errors or logic issues that arise. The article illustrates this process with examples of creating a banking system and a vector-based function, showing how ChatGPT can be leveraged to rectify errors detected by Kani. While Kani enhances code quality by covering all edge cases, it can also increase complexity and development time. Nevertheless, combining AI tools like ChatGPT with verification tools like Kani can significantly improve software reliability and developer productivity.