Enter a species (e.g. Al, Fe): Sr Enter a hexagonal lattice type (e.g. hcp): hcp Enter a model name: LJ_ElliottAkerson_2015_Universal__MO_959249795837_003 Enter hexagonal lattice constants 'a' and 'c' (m): 3.793001798731479e-10, 6.19406952312033e-10 Calculating isothermal bulk modulus Warning: Maximum number of function evaluations has been exceeded. Finished calculation C11 = 73.62719433143957 GPa C12 = 19.7050377372986 GPa B = 37.67908993534559 GPa