Abstract
Declarative debugging is an interactive process where the debugger acquires knowledge from an oracle (usually the user) about the intended interpretation of a program to be debugged and uses it to compare with the machine interpretation of the program in order to find the error in that program. The debugging is declarative in the sense that the user need only know the logic aspect of a program (i.e. its declarative meaning) and does not need to consider the computational behaviour of the program. An error is found by checking the validity of the solved goals with respect to their intended interpretation. In this paper, we introduce the basic ideas and concepts of declarative debugging, and provide a theoretical foundation with emphasis on the study of soundness and completeness for declarative debugging in arbitrary (unrestricted) first order logic programming.
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