I bcc Sim_LAMMPS_EIM_Zhou_2010_BrClCsFIKLiNaRb__SM_259779394709_001 5.711716532707214 Optimization terminated successfully. Current function value: -2.218038 Iterations: 74 Function evaluations: 197 C11 = 20.282273 +/- 0.007336 GPa C12 = 12.897205 +/- 0.005187 GPa C44 = 12.897338 +/- 0.001834 GPa B = 15.358894 +/- 0.004235 GPa