Delta Debugging and its Problem Delta Debugging(DD) by Andreas Zeller: partitions an event sequence into subsequences with equal size, and performs trial execution for reduction with increasingly finer granularity DDs View a flat structure 口口国■国口口 DD cannot make use the structure of the input for efficiencyDelta Debugging and its Problem 11  Delta Debugging (DD) by Andreas Zeller : partitions an event sequence into subsequences with equal size, and performs trial execution for reduction with increasingly finer granularity. 11 DD’s View: a flat structure …… DD cannot make use the structure of the input for efficiency