Improving the precision of static analysis: Symbolic execution based on GCC abstract syntax tree

To improve the accuracy of analysis results is one of the hard challenges for static analysis. Especially, static analyzers generally analyze all paths of a program, including infeasible paths, which undoubtedly decreases the analysis accuracy. To mitigate the issue, we design and implement a static analyzer, called ABAZER-SE, which is based on the meta-compilation and the GCC abstract syntax tree. ABAZER-SE combines symbolic execution and static analysis techniques to detect bugs in the source code. In addition, it allows users to write a custom checker for a specific bug.