mode=nonconvex seed=21 trials=3000 converged=847 trivial(R=I)=619 nontrivial_valid=21
reflex edges (P,Q): {(1, 1): 21}
nontrivial valid pairs with P convex: 0
max dihedral mismatch over all 9 edges: 1.1e-10
face angles differing (count):  {12: 21}
max face-angle difference per pair (deg), min/median: 0.01 8.96
