element(s): ['Cl', 'Na'] AFLOW prototype label: AB_cP2_221_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: ['3.49'] 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 = 221 cell = [[3.49, 0, 0], [0, 3.49, 0], [0, 0, 3.49]] ========================================= Step Time Energy fmax BFGS: 0 13:02:52 -5.916339 0.765742 BFGS: 1 13:02:52 -5.937839 0.547924 BFGS: 2 13:02:52 -5.958974 0.053312 BFGS: 3 13:02:52 -5.959152 0.004370 BFGS: 4 13:02:52 -5.959154 0.000032 BFGS: 5 13:02:52 -5.959154 0.000000 BFGS: 6 13:02:52 -5.959154 0.000000 Minimization converged after 6 steps. Maximum force component: 0.0 eV/Angstrom Maximum stress component: 4.451574933819543e-15 eV/Angstrom^3 ==== Minimized structure obtained from ASE ==== symbols = ['Cl', 'Na'] basis = [[0. 0. 0. ] [0.5 0.5 0.5]] cellpar = Cell([[3.4268257901610606, -5.683702920513989e-33, 4.8965274141105774e-33], [4.045257925492116e-33, 3.4268257901610606, -1.6151438730772005e-19], [-9.113350677611702e-33, -1.6151438730771954e-19, 3.4268257901610606]]) forces = [[0. 0. 0.] [0. 0. 0.]] stress = [ 4.45157493e-15 4.45157493e-15 4.45157493e-15 9.94423249e-31 -8.74692011e-34 -7.91919756e-50] energy per atom = -2.979576849653643 =============================================== 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 "CsCl" 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.