On Solving Word Equations via Program Transformation

07/23/2020

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by   Antonina Nepeivoda, et al.

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The paper presents an experiment of solving word equations via specialization of a configuration WE(R,E), where the program WE can be considered as an interpreter testing whether a composition of substitutions R produces a solution of a word equation E. Several variants of such interpreters, when specialized using a basic unfold/fold strategy, are able to decide solvability for a number of sets of the word equations with the overlapping variables.