Automated input minimization (or test case reduction) is an automated debugging technique to isolate that part of the failure-inducing input that is actually inducing the failure.
A. Leitner, M. Oriol, A. Zeller, I. Ciupa, и B. Meyer. Proceedings of the Twenty-second IEEE/ACM International Conference on Automated Software Engineering, стр. 417--420. New York, NY, USA, ACM, (2007)