IFDS (Interprocedural Finite Distributive Subset)

IFDS (Interprocedural Finite Distributive Subset) is a theoretical framework used in program analysis to efficiently analyze how data flows across different parts of a program, including function calls and returns. It models data flow as a set-based problem, where information is propagated through the program's control flow graph, allowing precise and scalable analysis of program properties such as variable definitions or possible values. By ensuring the analysis is *distributive* and *finite*, IFDS guarantees that results can be computed efficiently and accurately across complex program structures, enabling tools to automatically detect bugs, vulnerabilities, or optimize code.