element: W lattice type: fcc modelname: Morse_Shifted_GirifalcoWeizer_1959MedCutoff_W__MO_390128289865_004 Attempting to perform relaxation using initial lattice constant guess of 2.5 Angstroms Optimization terminated successfully. Current function value: -35.316612 Iterations: 30 Function evaluations: 62 {'lattice_constant': 3.974313363432884, 'cohesive_energy': 8.829152970238571, 'element': 'W', 'species': 'W" "W" "W" "W', 'crystal_structure': 'fcc', 'space_group': 'Fm-3m', 'wyckoff_code': '4a', 'basis_atoms': '[[0.0 0.0 0.0] [0.5 0.5 0.0] [0.5 0.0 0.5] [0.0 0.5 0.5]]', 'iterations': 30, 'func_calls': 62, 'warnflag': 0, 'repeat': 0}