X+ Y+ Z+ X- Y+ Z- Z+ X+ Y+ Z- Z- Z- Y+ Z- 
After creating box around spheres, box is too small (856997.915364 < 1500000), so increasing its size
Center of receptor atoms is (x y z): 16.8277475214805 27.7544765366821 4.61891011235956
Center of current box is (x y z): 10.276 23.001 5.1825
Diagonals of current box are (D1: x y z, D2: x y z): -8.014 7.981 -9.26 28.566 38.021 19.625
D2X+ D1Y- D2Y+ D1Z- D2Z+ 
**Total grid points in box is now: 1004062.282164
**BOX SIZE is now: 37.58 32.04 30.885
Center of current box is (x y z): 10.776 23.001 5.1825
Diagonals of current box are (D1: x y z, D2: x y z): -8.014 6.981 -10.26 29.566 39.021 20.625
D2X+ D1Y- D2Y+ D1Z- D2Z+ 
**Total grid points in box is now: 1166039.828964
**BOX SIZE is now: 38.58 34.04 32.885
Center of current box is (x y z): 11.276 23.001 5.1825
Diagonals of current box are (D1: x y z, D2: x y z): -8.014 5.981 -11.26 30.566 40.021 21.625
D2X+ D1Y- D2Y+ D1Z- D2Z+ 
**Total grid points in box is now: 1343578.555764
**BOX SIZE is now: 39.58 36.04 34.885
Center of current box is (x y z): 11.776 23.001 5.1825
Diagonals of current box are (D1: x y z, D2: x y z): -8.014 4.981 -12.26 31.566 41.021 22.625
D2X+ D1Y- D2Y+ D1Z- D2Z+ 
**Total grid points in box is now: 1537326.462564
**BOX SIZE is now: 40.58 38.04 36.885
Center of receptor atoms is (x y z): 16.8277475214805 27.7544765366821 4.61891011235956
Center of current box is (x y z): 12.276 23.001 5.1825
Diagonals of current box is (D1: x y z, D2: x y z): -8.014 3.981 -13.26 32.566 42.021 23.625
Limit diagonals to 8.3f :  -8.014    3.981  -13.260   32.566   42.021   23.625