X+ Y+ Z+ X+ Y- X- Y- Z+ Z+ 
After creating box around spheres, box is too small (795094.436153088 < 1500000), so increasing its size
Center of receptor atoms is (x y z): 16.5612620780939 27.4084070152217 4.68915949702182
Center of current box is (x y z): 13.601 22.5125 6.178
Diagonals of current box are (D1: x y z, D2: x y z): -2.887 7.103 -8.31 30.089 37.922 20.666
D1X- D2X+ D1Y- D2Y+ D1Z- D2Z+ 
**Total grid points in box is now: 960029.512409088
**BOX SIZE is now: 34.976 32.819 30.976
Center of current box is (x y z): 13.601 22.5125 6.178
Diagonals of current box are (D1: x y z, D2: x y z): -3.887 6.103 -9.31 31.089 38.922 21.666
D1X- D2X+ D1Y- D2Y+ D1Z- D2Z+ 
**Total grid points in box is now: 1146299.12466509
**BOX SIZE is now: 36.976 34.819 32.976
Center of current box is (x y z): 13.601 22.5125 6.178
Diagonals of current box are (D1: x y z, D2: x y z): -4.887 5.103 -10.31 32.089 39.922 22.666
D2X+ D1Y- D2Y+ D1Z- D2Z+ 
**Total grid points in box is now: 1320429.17663309
**BOX SIZE is now: 37.976 36.819 34.976
Center of current box is (x y z): 14.101 22.5125 6.178
Diagonals of current box are (D1: x y z, D2: x y z): -4.887 4.103 -11.31 33.089 40.922 23.666
D2X+ D1Y- D2Y+ D1Z- D2Z+ 
**Total grid points in box is now: 1510515.90460109
**BOX SIZE is now: 38.976 38.819 36.976
Center of receptor atoms is (x y z): 16.5612620780939 27.4084070152217 4.68915949702182
Center of current box is (x y z): 14.601 22.5125 6.178
Diagonals of current box is (D1: x y z, D2: x y z): -4.887 3.103 -12.31 34.089 41.922 24.666
Limit diagonals to 8.3f :  -4.887    3.103  -12.310   34.089   41.922   24.666