Traceback (most recent call last):
  File "/disk2/worker/repository/td/LatticeConstantHexagonalEnergy__TD_942334626465_005/runner", line 458, in <module>
    a, c, cohesive_energy = get_lattice_constant(symbol, model, maxiter=500)
  File "/disk2/worker/repository/td/LatticeConstantHexagonalEnergy__TD_942334626465_005/runner", line 390, in get_lattice_constant
    "unstable.".format(final_a, final_c, float(final_c / final_a), model_cutoff)
RuntimeError: Lattice converged to a = 2.347773672264454 Angstroms and c = 2.049395712726576 Angstroms (c/a = 0.872910). The model cutoff computed was 2.305985934101081 Angstroms.  Since a > model_cutoff, the minimization has converged to a state where there are no longer intralayer forces, indicating the lattice is unstable.
Command exited with non-zero status 1

{"usertime":4.16,"memmax":51948,"memavg":0}