Multiple Program Analysis Techniques Enable Precise Check for SEI CERT C Coding Standard

Static analysis tools have demonstrated their ability to find non-compliant code of coding standards. However, for industrial-sized systems, static analysis tools frequently report a large number of warnings, which contain both true positives and false positives. In this research, to enable precise check for SEI CERT C Coding Standard, we combine static analysis with three different techniques. Firstly, a static analysis tool is used to detect non-compliant code, which are positions that may violate a SEI CERT C rule or recommendation. Each detected position is called a warning. Secondly, deductive verification, model checking, and pattern matching are used to verify whether each warning is a true positive or a false positive. Our experiments with two automotive applications show that this approach can help to improve the accuracy to check for SEI CERT C Coding Standard. We verify nearly 60% warnings of Rosecheckers, a static analysis tool. In these verified warnings, 97% of them are automatically detected to be true positives or false positives by our approach.