Currently ICE3 is not supported by AVaRICE. Because of serious bugs in the AS6 and the less price of ICE3 it makes sense to have ICE3 as interface for debugging. A session of AS6 debugging and the description of steps to be executed show a full cycle of loading the solution in AS6, compiling, uploading and stepping through a program. At the end of the trace the synchronization between ICE3 and AS6 (by a bug in ???) is lost and a target power off / on cycle finishes the trace. If any additional traces are required I'll provide them on request.
The trace is made with Wireshark 1.8.3 with all empty USB packets (Data_len == 0) removed. The full trace is still available.