pvs

PVS, which stands for Prototype Verification System, is a command line tool used for formal verification of software and hardware systems. It provides a framework for specifying and verifying mathematical specifications of programs written in various programming languages.

PVS allows users to create formal models of their systems using a combination of first-order and higher-order logic, as well as various mathematical theories. These models can then be verified against specified properties using automated reasoning techniques.

The tool supports rich interactive theorem proving and includes a wide range of built-in proof strategies, making it easier for users to prove complex properties.

PVS also offers support for symbolic execution, model checking, and static analysis. It includes a powerful type system that helps ensure correctness at compile-time.

Furthermore, PVS has a large user community and an extensive library of formalized theories and specifications that can be leveraged for verification tasks. It is widely used in academia and industry for the formal verification of safety-critical systems.

Overall, PVS is a powerful command line tool that enables formal verification and can help ensure the correctness of complex software and hardware systems.