A method for performing a static analysis may include extracting, from a caller function in code, a context-free inter-procedural rule including a callsite and a return value of a callee function. The callsite may invoke the callee function. The method may further include extracting, from the caller function, a context-sensitive parameter mapping rule that maps an input parameter of the callee function to an invocation value provided by the caller function at the callsite, deriving a derived value for the callsite using the context-free inter-procedural rule and the context-sensitive parameter mapping rule, and identifying a defect in the code by performing the static analysis using the derived value for the callsite.