X+ Y+ Z+ X- Y- Z- Y+ Z- X- X+ Y- X- Y- Y+ X- Z- Z- 
After creating box around spheres, box is too small (726171.048719545 < 1500000), so increasing its size
Center of receptor atoms is (x y z): 15.7567659273242 2.38348419065597 11.9995875412931
Center of current box is (x y z): 17.648245 6.794495 15.576675
Diagonals of current box are (D1: x y z, D2: x y z): 3.06749 -8.27401 0.27514 32.229 21.863 30.87821
D1X- D2X+ D1Y- D1Z- D2Z+ 
**Total grid points in box is now: 854117.580114822
**BOX SIZE is now: 31.16151 31.13701 32.60307
Center of current box is (x y z): 17.648245 6.294495 15.576675
Diagonals of current box are (D1: x y z, D2: x y z): 2.06749 -9.27401 -0.72486 33.229 21.863 31.87821
D1X- D2X+ D1Y- D1Z- D2Z+ 
**Total grid points in box is now: 995676.280310099
**BOX SIZE is now: 33.16151 32.13701 34.60307
Center of current box is (x y z): 17.648245 5.794495 15.576675
Diagonals of current box are (D1: x y z, D2: x y z): 1.06749 -10.27401 -1.72486 34.229 21.863 32.87821
D1X- D2X+ D1Y- D1Z- D2Z+ 
**Total grid points in box is now: 1151495.14930538
**BOX SIZE is now: 35.16151 33.13701 36.60307
Center of current box is (x y z): 17.648245 5.294495 15.576675
Diagonals of current box are (D1: x y z, D2: x y z): 0.0674899999999994 -11.27401 -2.72486 35.229 21.863 33.87821
D1X- D2X+ D1Y- D1Z- D2Z+ 
**Total grid points in box is now: 1322222.18710065
**BOX SIZE is now: 37.16151 34.13701 38.60307
Center of current box is (x y z): 17.648245 4.794495 15.576675
Diagonals of current box are (D1: x y z, D2: x y z): -0.932510000000001 -12.27401 -3.72486 36.229 21.863 34.87821
D1X- D2X+ D1Y- D1Z- D2Z+ 
**Total grid points in box is now: 1508505.39369593
**BOX SIZE is now: 39.16151 35.13701 40.60307
Center of receptor atoms is (x y z): 15.7567659273242 2.38348419065597 11.9995875412931
Center of current box is (x y z): 17.648245 4.294495 15.576675
Diagonals of current box is (D1: x y z, D2: x y z): -1.93251 -13.27401 -4.72486 37.229 21.863 35.87821
Limit diagonals to 8.3f :  -1.933  -13.274   -4.725   37.229   21.863   35.878