X- Y+ Z- X- Y+ Z+ X+ Y+ Y+ X- X+ Z- X+ 
After creating box around spheres, box is too small (877316.818723913 < 1500000), so increasing its size
Center of receptor atoms is (x y z): 12.7454236869933 26.8804120549877 39.0521543884385
Center of current box is (x y z): 7.478 21.921105 35.528305
Diagonals of current box are (D1: x y z, D2: x y z): -8.07 5.386 19.72961 23.026 38.45621 51.327
D1X- D2X+ D1Y- D2Y+ D1Z- D2Z+ 
**Total grid points in box is now: 1052890.43219092
**BOX SIZE is now: 33.096 35.07021 33.59739
Center of current box is (x y z): 7.478 21.921105 35.528305
Diagonals of current box are (D1: x y z, D2: x y z): -9.07 4.386 18.72961 24.026 39.45621 52.327
D1X- D2X+ D1Y- D2Y+ D1Z- D2Z+ 
**Total grid points in box is now: 1250444.98325792
**BOX SIZE is now: 35.096 37.07021 35.59739
Center of current box is (x y z): 7.478 21.921105 35.528305
Diagonals of current box are (D1: x y z, D2: x y z): -10.07 3.386 17.72961 25.026 40.45621 53.327
D1X- D2X+ D1Y- D2Y+ D1Z- D2Z+ 
**Total grid points in box is now: 1471276.47192492
**BOX SIZE is now: 37.096 39.07021 37.59739
Center of current box is (x y z): 7.478 21.921105 35.528305
Diagonals of current box are (D1: x y z, D2: x y z): -11.07 2.386 16.72961 26.026 41.45621 54.327
D1X- D2X+ D1Y- D2Y+ D1Z- D2Z+ 
**Total grid points in box is now: 1716680.89819192
**BOX SIZE is now: 39.096 41.07021 39.59739
Center of receptor atoms is (x y z): 12.7454236869933 26.8804120549877 39.0521543884385
Center of current box is (x y z): 7.478 21.921105 35.528305
Diagonals of current box is (D1: x y z, D2: x y z): -12.07 1.386 15.72961 27.026 42.45621 55.327
Limit diagonals to 8.3f : -12.070    1.386   15.730   27.026   42.456   55.327