Si fcc ThreeBodyBondOrder_WR_WangRockett_1991_Si__MO_081872846741_000 4.037710964679718
Optimization terminated successfully.
         Current function value: -15.959780
         Iterations: 1064
         Function evaluations: 3168

C11 =   228.914905 +/-     0.007336 GPa
C12 =   112.244786 +/-     0.005187 GPa
C44 =   101.676998 +/-     0.001834 GPa
B   =   151.134826 +/-     0.004235 GPa