TCHR

TCHR: a framework for tabled CLP. Tabled Constraint Logic Programming is a powerful execution mechanism for dealing with constraint logic programming without worrying about fixpoint computation. Various applications, e.g. in the fields of program analysis and model checking, have been proposed. Unfortunately, a high-level system for developing new applications is lacking, and programmers are forced to resort to complicated ad hoc solutions. This papers presents TCHR, a high-level framework for tabled constraint logic programming. It integrates in a light-weight manner Constraint Handling Rules, a high-level language for constraint solvers, with tabled logic programming. The framework is easily instantiated with new application-specific constraint domains. Various high-level operations can be instantiated to control performance. In particular, we propose a novel, generalized technique for compacting answer sets

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