element: W lattice type: bcc modelname: Sim_LAMMPS_MEAM_ParkFellingerLenosky_2012_W__SM_163270462402_000 Attempting to perform relaxation using initial lattice constant guess of 2.5 Angstroms Optimization terminated successfully. Current function value: -17.773168 Iterations: 28 Function evaluations: 57 {'lattice_constant': 3.188193768262863, 'cohesive_energy': 8.886583758339357, 'element': 'W', 'species': 'W" "W', 'crystal_structure': 'bcc', 'space_group': 'Im-3m', 'wyckoff_code': '2a', 'basis_atoms': '[[0.0 0.0 0.0] [0.5 0.5 0.5]]', 'iterations': 28, 'func_calls': 57, 'warnflag': 0, 'repeat': 0}