element: N lattice type: diamond modelname: Sim_LAMMPS_ReaxFF_StrachanVanDuinChakraborty_2003_CHNO__SM_107643900657_001 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 on proc 0: step0-bondchk failed: i=0 end(i)=28 str(i+1)=25 (src/USER-REAXC/reaxc_forces.cpp: Attempting to perform relaxation using initial lattice constant guess of 3.0 Angstroms Failed to perform relaxation using initial lattice constant guess of 3.0 Angstroms Exception message: ERROR on proc 0: step0-bondchk failed: i=0 end(i)=46 str(i+1)=25 (src/USER-REAXC/reaxc_forces.cpp: Attempting to perform relaxation using initial lattice constant guess of 3.5 Angstroms Failed to perform relaxation using initial lattice constant guess of 3.5 Angstroms Exception message: ERROR on proc 0: step0-bondchk failed: i=0 end(i)=28 str(i+1)=25 (src/USER-REAXC/reaxc_forces.cpp: Attempting to perform relaxation using initial lattice constant guess of 4.0 Angstroms Failed to perform relaxation using initial lattice constant guess of 4.0 Angstroms Exception message: ERROR on proc 0: step0-bondchk failed: i=0 end(i)=28 str(i+1)=25 (src/USER-REAXC/reaxc_forces.cpp: Attempting to perform relaxation using initial lattice constant guess of 4.5 Angstroms Optimization terminated successfully. Current function value: -27.220256 Iterations: 27 Function evaluations: 58 {'lattice_constant': 4.167405217140913, 'cohesive_energy': 3.4025320354085786, 'element': 'N', 'species': 'N" "N" "N" "N" "N" "N" "N" "N', 'crystal_structure': 'diamond', 'space_group': 'Fd-3m', 'wyckoff_code': '8a', 'basis_atoms': '[[0.0 0.0 0.0] [0.25 0.25 0.25] [0.5 0.5 0.0] [0.75 0.75 0.25] [0.5 0.0 0.5] [0.75 0.25 0.75] [0.0 0.5 0.5] [0.25 0.75 0.75]]', 'iterations': 27, 'func_calls': 58, 'warnflag': 0, 'repeat': 0}