X- Y+ Z- X- X- Z+ Y- X- X+ X+ 
After creating box around spheres, box is too small (784684.55392231 < 1500000), so increasing its size
Center of receptor atoms is (x y z): 12.316502236136 -0.8000939177102 20.0359628801431
Center of current box is (x y z): 19.33334 7.288455 12.816515
Diagonals of current box are (D1: x y z, D2: x y z): 3.6518 -22.727 -2.18884 35.01488 8.15009 27.82187
D1X- D2X+ D2Y+ D1Z- D2Z+ 
**Total grid points in box is now: 919187.006387594
**BOX SIZE is now: 33.36308 31.87709 32.01071
Center of current box is (x y z): 19.33334 6.788455 12.816515
Diagonals of current box are (D1: x y z, D2: x y z): 2.6518 -22.727 -3.18884 36.01488 9.15009 28.82187
D1X- D2X+ D2Y+ D1Z- D2Z+ 
**Total grid points in box is now: 1067635.27961288
**BOX SIZE is now: 35.36308 32.87709 34.01071
Center of current box is (x y z): 19.33334 6.288455 12.816515
Diagonals of current box are (D1: x y z, D2: x y z): 1.6518 -22.727 -4.18884 37.01488 10.15009 29.82187
D1X- D2X+ D2Y+ D1Z- D2Z+ 
**Total grid points in box is now: 1230677.37359816
**BOX SIZE is now: 37.36308 33.87709 36.01071
Center of current box is (x y z): 19.33334 5.788455 12.816515
Diagonals of current box are (D1: x y z, D2: x y z): 0.6518 -22.727 -5.18884 38.01488 11.15009 30.82187
D1X- D2X+ D2Y+ D1Z- D2Z+ 
**Total grid points in box is now: 1408961.28834344
**BOX SIZE is now: 39.36308 34.87709 38.01071
Center of current box is (x y z): 19.33334 5.288455 12.816515
Diagonals of current box are (D1: x y z, D2: x y z): -0.3482 -22.727 -6.18884 39.01488 12.15009 31.82187
D1X- D2X+ D2Y+ D1Z- D2Z+ 
**Total grid points in box is now: 1603135.02384873
**BOX SIZE is now: 41.36308 35.87709 40.01071
Center of receptor atoms is (x y z): 12.316502236136 -0.8000939177102 20.0359628801431
Center of current box is (x y z): 19.33334 -4.788455 12.816515
Diagonals of current box is (D1: x y z, D2: x y z): -1.3482 -22.727 -7.18884 40.01488 13.15009 32.82187
Limit diagonals to 8.3f :  -1.348  -22.727   -7.189   40.015   13.150   32.822