element: C lattice type: fcc modelname: MEAM_LAMMPS_NouranianTschoppGwaltney_2014_CH__MO_354152387712_002 Attempting to perform relaxation using initial lattice constant guess of 2.5 Angstroms Optimization terminated successfully. Current function value: -52.109186 Iterations: 25 Function evaluations: 52 {'lattice_constant': 2.555484116077423, 'cohesive_energy': 13.027296485490083, 'element': 'C', 'species': 'C" "C" "C" "C', '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': 25, 'func_calls': 52, 'warnflag': 0, 'repeat': 0}