element: C lattice type: sc modelname: Sim_LAMMPS_ReaxFF_AnGoddard_2015_BC__SM_389039364091_000 Attempting to perform relaxation using initial lattice constant guess of 2.5 Angstroms Failed to perform relaxation using initial lattice constant guess of 2.5 Angstroms Exception message: ERROR: Too many ghost atoms (src/REAXFF/pair_reaxff.cpp:549) Attempting to perform relaxation using initial lattice constant guess of 3.0 Angstroms Optimization terminated successfully. Current function value: -0.023872 Iterations: 28 Function evaluations: 57 {'lattice_constant': 3.4637313187122354, 'cohesive_energy': 0.02387156696383036, 'element': 'C', 'species': 'C', 'crystal_structure': 'sc', 'space_group': 'Pm-3m', 'wyckoff_code': '1a', 'basis_atoms': '[[0.0 0.0 0.0]]', 'iterations': 28, 'func_calls': 57, 'warnflag': 0, 'repeat': 0}