Skip to main content

Termination of Logic Programs with block Declarations Running in Several Modes

Smaus, Jan-Georg and Hill, Pat and King, Andy (1998) Termination of Logic Programs with block Declarations Running in Several Modes. In: Palamidessi, Catuscia, ed. International Symposium on Programming Languages: Implementations, Logics and Programs. Lecture Notes in Computer Science, 1490 . Springer-Verlag, see also, pp. 182-196. ISBN 3-540-65012-1. (KAR id:21647)

Language: English
Download (424kB) Preview


We show how termination of logic programs with delay declarations can be proven. Three features are distinctive of this work: (a) we assume that predicates can be used in several modes; (b) we show that block declarations, which are a very simple delay construct, are sufficient; (c) we take the selection rule into account, assuming it to be as in most Prolog implementations. Our method is based on identifying the so-called robust predicates, for which the textual position of an atom using this predicate is irrelevant. The method can be used to verify existing programs, and to assist in writing new programs. As a byproduct, we also show how programs can be proven to be free from occur-check and floundering.

Item Type: Book section
Uncontrolled keywords: Logic programming, coroutining, delay declarations, block declarations, termination, modes, selection rules
Subjects: Q Science > QA Mathematics (inc Computing science) > QA 76 Software, computer programming,
Divisions: Faculties > Sciences > School of Computing > Theoretical Computing Group
Depositing User: Andy King
Date Deposited: 22 Aug 2009 15:16 UTC
Last Modified: 15 Feb 2020 04:02 UTC
Resource URI: (The current URI for this page, for reference purposes)
King, Andy:
  • Depositors only (login required):


Downloads per month over past year