element(s):
['Si']
AFLOW prototype label:
A_tI8_139_h
Parameter names:
['a', 'c/a', 'x1']
model type (only 'standard' supported at this time):
standard
number of parameter sets:
1
Parameter values for parameter set 0:
['6.6881', '0.57703982', '0.8213634']
model name:
SNAP_ZuoChenLi_2019quadratic_Si__MO_721469752060_000
==== Building ASE atoms object with: ====
representative atom symbols =  ['Si']
representative atom coordinates =  [[0.8213634 0.8213634 0.       ]]
spacegroup =  139
cell =  [[6.6881, 0, 0], [0, 6.6881, 0], [0, 0, 3.8593]]
=========================================
      Step     Time          Energy          fmax
BFGS:    0 09:49:23      -41.797317         0.590934
BFGS:    1 09:49:23      -41.811575         0.590939
BFGS:    2 09:49:23      -41.838198         0.549973
BFGS:    3 09:49:23      -41.847035         0.496204
BFGS:    4 09:49:23      -41.864957         0.360846
BFGS:    5 09:49:23      -41.879082         0.222918
BFGS:    6 09:49:23      -41.887776         0.153450
BFGS:    7 09:49:23      -41.889595         0.141061
BFGS:    8 09:49:23      -41.890542         0.125550
BFGS:    9 09:49:23      -41.892856         0.093876
BFGS:   10 09:49:23      -41.896114         0.128313
BFGS:   11 09:49:23      -41.900120         0.117056
BFGS:   12 09:49:23      -41.902498         0.055491
BFGS:   13 09:49:23      -41.903003         0.008672
BFGS:   14 09:49:23      -41.903026         0.001272
BFGS:   15 09:49:23      -41.903026         0.000150
BFGS:   16 09:49:23      -41.903026         0.000033
BFGS:   17 09:49:23      -41.903026         0.000006
BFGS:   18 09:49:23      -41.903026         0.000001
BFGS:   19 09:49:23      -41.903026         0.000000
BFGS:   20 09:49:23      -41.903026         0.000000
Minimization converged after 20 steps.
Maximum force component: 6.426687922610715e-10 eV/Angstrom
Maximum stress component: 3.889123905356445e-11 eV/Angstrom^3
==== Minimized structure obtained from ASE ====
symbols =  ['Si', 'Si', 'Si', 'Si', 'Si', 'Si', 'Si', 'Si']
basis =  [[8.18819905e-01 8.18819905e-01 0.00000000e+00]
 [1.81180095e-01 1.81180095e-01 4.79828113e-34]
 [1.81180095e-01 8.18819905e-01 7.67724981e-34]
 [8.18819905e-01 1.81180095e-01 4.79828113e-34]
 [3.18819905e-01 3.18819905e-01 5.00000000e-01]
 [6.81180095e-01 6.81180095e-01 5.00000000e-01]
 [6.81180095e-01 3.18819905e-01 5.00000000e-01]
 [3.18819905e-01 6.81180095e-01 5.00000000e-01]]
cellpar =  Cell([[6.658425557515922, -1.913781477615635e-35, 3.178000958842545e-32], [-1.658951627563115e-35, 6.658425557515923, 1.3001423281776151e-17], [7.842396050907582e-33, 7.225109795453316e-18, 4.013791378449774]])
forces =  [[-6.42668792e-10 -6.42668792e-10 -1.25489261e-27]
 [ 6.42668792e-10  6.42668792e-10  1.25486787e-27]
 [ 6.42668792e-10 -6.42668792e-10 -1.25486787e-27]
 [-6.42668792e-10  6.42668792e-10  1.25489261e-27]
 [-6.42668792e-10 -6.42668792e-10 -1.25489261e-27]
 [ 6.42668792e-10  6.42668792e-10  1.25486787e-27]
 [ 6.42668792e-10 -6.42668792e-10 -1.25486787e-27]
 [-6.42668792e-10  6.42668792e-10  1.25489261e-27]]
stress =  [-1.55803928e-11 -1.55803928e-11  3.88912391e-11 -1.15452531e-27
 -5.47681074e-34 -2.41508278e-50]
energy per atom =  -2.0769211830982357
===============================================
Parameter sets [0] relaxed to duplicate structures, attempting to write only one of them.
Successfully added property instance for parameter set 0