element(s): ['Cl', 'Na'] AFLOW prototype label: AB_cF8_225_a_b Parameter names: ['a'] model type (only 'standard' supported at this time): standard number of parameter sets: 1 Parameter values for parameter set 0: ['5.665'] model name: Sim_LAMMPS_EIM_Zhou_2010_BrClCsFIKLiNaRb__SM_259779394709_001 ==== Building ASE atoms object with: ==== representative atom symbols = ['Cl', 'Na'] representative atom coordinates = [[0. 0. 0. ] [0.5 0.5 0.5]] spacegroup = 225 cell = [[5.665, 0, 0], [0, 5.665, 0], [0, 0, 5.665]] ========================================= Step Time Energy fmax BFGS: 0 14:02:13 -26.495836 0.278036 BFGS: 1 14:02:14 -26.499019 0.256149 BFGS: 2 14:02:14 -26.516209 0.011726 BFGS: 3 14:02:15 -26.516270 0.004797 BFGS: 4 14:02:15 -26.516264 0.007196 BFGS: 5 14:02:16 -26.516274 0.000497 BFGS: 6 14:02:16 -26.516274 0.000034 BFGS: 7 14:02:17 -26.516274 0.000000 BFGS: 8 14:02:17 -26.516274 0.000000 Minimization converged after 8 steps. Maximum force component: 0.0 eV/Angstrom Maximum stress component: 1.6737543565158504e-12 eV/Angstrom^3 ==== Minimized structure obtained from ASE ==== symbols = ['Cl', 'Cl', 'Cl', 'Cl', 'Na', 'Na', 'Na', 'Na'] basis = [[0.00000000e+00 0.00000000e+00 0.00000000e+00] [2.09828793e-49 5.00000000e-01 5.00000000e-01] [5.00000000e-01 0.00000000e+00 5.00000000e-01] [5.00000000e-01 5.00000000e-01 0.00000000e+00] [5.00000000e-01 5.00000000e-01 5.00000000e-01] [5.00000000e-01 0.00000000e+00 0.00000000e+00] [0.00000000e+00 5.00000000e-01 0.00000000e+00] [1.04939299e-74 0.00000000e+00 5.00000000e-01]] cellpar = Cell([[5.6310688174278365, -2.778538894570914e-33, -1.7699932770152818e-32], [8.50581562074001e-39, 5.6310688174278365, -1.9770677290225078e-20], [-2.1270459688451704e-32, -1.9770677290249194e-20, 5.6310688174278365]]) forces = [[0. 0. 0.] [0. 0. 0.] [0. 0. 0.] [0. 0. 0.] [0. 0. 0.] [0. 0. 0.] [0. 0. 0.] [0. 0. 0.]] stress = [ 1.67375436e-12 1.67375436e-12 1.67375436e-12 -1.93696786e-28 2.15604859e-60 5.71556536e-62] energy per atom = -3.314534254393629 =============================================== Parameter sets [0] relaxed to duplicate structures, attempting to write only one of them. Skipping parameter set 0 because of error while adding or validating property: ERROR(@kim_property_modify): input value "Rock Salt" doesn't meet the format specification. An integer equal to or greater than 1 or integer indices range of "start:stop". No parameter sets in this group successfully added a property instance. Skipping this group.