Abstract
AbstractWe propose a new method to verify that a higher-order, tree-processing functional program conforms to an input/output specification. Our method reduces the verification problem to multiple verification problems for higher-order multi-tree transducers, which are then transformed into higher-order recursion schemes and model-checked. Unlike previous methods, our new method can deal with arbitrary higher-order functional programs manipulating algebraic data structures, as long as certain invariants on intermediate data structures are provided by a programmer. We have proved the soundness of the method and implemented a prototype verifier.KeywordsModel CheckFunctional ProgramInput TreeTree AutomatonRecursion SchemeThese keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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