Abstract

Higher-order model checking (more precisely, the model checking of higher-order recursion schemes) has been extensively studied recently, which can automatically decide properties of programs written in the simply-typed λ-calculus with recursion and finite data domains. This paper formalizes predicate abstraction and counterexample-guided abstraction refinement (CEGAR) for higher-order model checking, enabling automatic verification of programs that use infinite data domains such as integers. A prototype verifier for higher-order functional programs based on the formalization has been implemented and tested for several programs.

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