@jdsteve2 Footprint gathering implemented
E.g. this:
python test_statistics.py 'test_gather_access_footprint()'
says:
('a', 'read') [n] -> { n^2 : n > 0 } ('b', 'read') [n] -> { n^2 : n > 0 } ('c', 'write') [n] -> { n^2 : n > 0 }