[EN] One of the most automatic debugging techniques is Algorithmic Debugging because it allows us to debug a program without the need to inspect the source code. In order to find a bug, an algorithmic debugger asks questions to the programmer about the correctness of subcomputations in an execution. Reducing the number and complexity of these questions is an old objective in this field. Recently, an strategy for algorithmic debuggers that minimizes the number of questions has been released. This new strategy is called Optimal Divide and Query and, provided that all questions can be answered, it finds any bug in the source code with a minimum set of questions. In this work we discuss the implementation of such a strategy in different algorithmic debugging architectures. © 2011 Elsevier B.V. All rights reserved.

This work has been partially supported by the Spanish Ministerio de Ciencia e Innovación (Secretar´ıa de Estado de Investigaci´on) under grant TIN2008-06622-C03-02 and by the Generalitat Valenciana under grant PROMETEO/2011/052