selftest: True
n=6: reachable points with |B|<=60: 1905  (nodes 29540, 0.2s, exact decisions 2122)
n=6: type mismatches with the source's description: 0 ; source-reachable lattice points in the disc: 1905 ; missing/extra: 0
n=6: tracer vs source description on 483 lattice points: 0 mismatches
n=6: (4,5) -> (3, 1, 1, 2)  (5,4) -> (3, 3, 1, 4)   [format (N, type, eps, j)]
n=4: reachable points found 427 ; mismatches with the source's description 0 ; coprime points in the disc 427, missing 0
