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RedAlert: Determinacy inference for Prolog

Published online by Cambridge University Press:  06 July 2011

JAEL KRIENER
Affiliation:
School of Computing, University of Kent, Canterbury, Kent CT2 7NF, UK (e-mail: [email protected], [email protected])
ANDY KING
Affiliation:
School of Computing, University of Kent, Canterbury, Kent CT2 7NF, UK (e-mail: [email protected], [email protected])

Abstract

This paper revisits the problem of determinacy inference addressing the problem of how to uniformly handle cut. To this end a new semantics is introduced for cut, which is abstracted to systematically derive a backward analysis that derives conditions sufficient for a goal to succeed at most once. The method is conceptionally simpler and easier to implement than the existing techniques, while improving the latter's handling of cut. Formal arguments substantiate correctness and experimental work, and a tool called ‘RedAlert’ demonstrates the method's generality and applicability.

Type
Regular Papers
Copyright
Copyright © Cambridge University Press 2011

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