Enter a species (e.g. Al, Fe): Ni Enter a hexagonal lattice type (e.g. hcp): hcp Enter a model name: EAM_CubicNaturalSpline_AngeloMoody_1995_Ni__MO_800536961967_002 Enter hexagonal lattice constants 'a' and 'c' (m): 2.417395833930863e-10, 4.192420226550011e-10 Calculating isothermal bulk modulus Warning: Maximum number of function evaluations has been exceeded.