element(s): ['Si'] AFLOW prototype label: A_cF8_227_a Parameter names: ['a'] model type (only 'standard' supported at this time): standard number of parameter sets: 1 Parameter values for parameter set 0: ['5.4673'] model name: ThreeBodyBondOrder_WR_WangRockett_1991_Si__MO_081872846741_000 ==== Building ASE atoms object with: ==== representative atom symbols = ['Si'] representative atom coordinates = [[0 0 0]] spacegroup = 227 cell = [[5.4673, 0, 0], [0, 5.4673, 0], [0, 0, 5.4673]] ========================================= Step Time Energy fmax BFGS: 0 15:43:36 -37.021778 0.239722 BFGS: 1 15:43:36 -37.024165 0.224957 BFGS: 2 15:43:36 -37.041367 0.002096 BFGS: 3 15:43:36 -37.041368 0.000066 BFGS: 4 15:43:36 -37.041368 0.000000 BFGS: 5 15:43:36 -37.041368 0.000000 Minimization converged after 5 steps. Maximum force component: 2.6774320594854834e-31 eV/Angstrom Maximum stress component: 8.449629204529218e-15 eV/Angstrom^3 ==== Minimized structure obtained from ASE ==== symbols = ['Si', 'Si', 'Si', 'Si', 'Si', 'Si', 'Si', 'Si'] basis = [[0.00000000e+00 0.00000000e+00 6.73864539e-35] [9.62964972e-34 5.00000000e-01 5.00000000e-01] [5.00000000e-01 5.00000000e-01 0.00000000e+00] [5.00000000e-01 6.41976648e-34 5.00000000e-01] [7.50000000e-01 2.50000000e-01 7.50000000e-01] [2.50000000e-01 2.50000000e-01 2.50000000e-01] [2.50000000e-01 7.50000000e-01 7.50000000e-01] [7.50000000e-01 7.50000000e-01 2.50000000e-01]] cellpar = Cell([[5.430477371643324, 6.350538234710651e-40, -1.4875687266998797e-36], [3.320598526178761e-42, 5.430477371643324, 7.605681306373857e-27], [-6.978855580291155e-37, 7.605681306378267e-27, 5.430477371643324]]) forces = [[ 2.23119338e-32 -1.28293620e-31 -4.46238677e-32] [ 3.34679007e-32 1.22715636e-31 1.33871603e-31] [-6.55413056e-32 -1.04935814e-31 2.23119338e-32] [ 5.57798346e-32 -2.23119338e-32 1.00403702e-31] [ 1.33871603e-31 7.80917684e-32 -9.76147105e-32] [-2.25908330e-31 -2.67743206e-31 4.46238677e-32] [ 1.17137653e-31 -5.02018511e-32 1.00403702e-31] [-1.33871603e-31 -4.88073553e-33 1.33871603e-31]] stress = [ 8.44962920e-15 8.44962920e-15 8.44962920e-15 3.75307621e-30 -3.11844228e-68 -5.36400511e-71] energy per atom = -4.630170994175949 =============================================== Parameter sets [0] relaxed to duplicate structures, attempting to write only one of them. Successfully added property instance for parameter set 0