{
  "long_l20": {
    "material_and_boundary_source": "control_l40",
    "accepted_steps": 58,
    "accepted_time_s": 7.25e-06,
    "N": 64,
    "initial_energy_from_saved_native_nodes_J": 2.8717757481581156e-11,
    "completed_horizon": false,
    "reason": "native exception, no native summary; inferred prefix metadata only"
  },
  "long_u20": {
    "material_and_boundary_source": "control_l40",
    "accepted_steps": 58,
    "accepted_time_s": 7.25e-06,
    "N": 136,
    "initial_energy_from_saved_native_nodes_J": 2.8686742473010796e-11,
    "completed_horizon": false,
    "reason": "native exception, no native summary; inferred prefix metadata only"
  }
}