Rare anomalous production of superheavy nuclei

[DavidWalz]

Exception in crpropa::ModuleList::run: 
nuclearMass: nucleus not found 86, 44

Exception in crpropa::ModuleList::run: 
nuclearMass: nucleus not found 114, 55

simulation setup

ModuleList
  SimplePropagation: Step size = 10 - 10000 kpc
  FutureRedshift: h0 = 0.673, omegaL = 0.685, omegaM = 0.315
  PhotoPionProduction: CMB
  PhotoPionProduction: IRB (Dominguez 2011)
  PhotoDisintegration: CMB
  PhotoDisintegration: IRB (Dominguez 2011)
  NuclearDecay
  ElectronPairProduction: CMB
  ElectronPairProduction: IRB (Dominguez 2011)
  ...
crpropa::ModuleList: Number of Threads: 1
Run ModuleList

This is reported by @DavidWit to occur very rarely.