Usage: ddmin.py script minimizes testcases that generates the same exceptions or errors as the origninal testcase does It can be used to identify minimal testcases for fundamental data structure such as array as well as python program that throws specific errors or exceptions The exceptions that can be handled are detailedly specified in the report run `python ddmin.py [filename]` to minimize testcases with one function stack run `python ddmin.py -r [filename]` to minimize testcases with module import (currently only support local modules)