DM Object: box 1 MPI process
  type: plex
box in 2 dimensions:
  Number of 0-cells per rank: 9
  Number of 1-cells per rank: 16
  Number of 2-cells per rank: 8
Labels:
  celltype: 3 strata with value/size (0 (9), 1 (16), 3 (8))
  depth: 3 strata with value/size (0 (9), 1 (16), 2 (8))
  marker: 1 strata with value/size (1 (16))
  Face Sets: 4 strata with value/size (1 (2), 2 (2), 3 (2), 4 (2))
Initial guess
L_2 Error: < 1.0e-11
Initial Residual
L_2 Residual: 0.
Au - b = Au + F(0)
Linear L_2 Residual: 0.
Solution boundary integral: 3.333