{
  "status": "passed",
  "scope": "Finite elementary-reduction audit only; not theorem verification.",
  "history_audit": {
    "maximum_history_length": 6,
    "histories_by_length": [
      1,
      9,
      81,
      729,
      6561,
      59049,
      531441
    ],
    "histories_total": 597871,
    "empty_pop_edges": 79698
  },
  "drain_audit": {
    "h_and_y_range": [
      0,
      12
    ],
    "cases": 169
  },
  "negative_controls": {
    "max_instead_of_min_cut": {
      "true_gap": 0,
      "wrong_gap": 4
    },
    "drain_without_final_counter_zero": {
      "h": 2,
      "y": 2,
      "correct_outputs": [
        0
      ],
      "wrong_outputs": [
        0,
        1,
        2
      ]
    },
    "absolute_signed_sum": {
      "clock_actions": [
        -1,
        1
      ],
      "reflected_height": 1,
      "wrong_height": 0
    },
    "using_optional_counter_for_clock_ahead": {
      "clock_actions": [
        1,
        -1
      ],
      "reflected_height": 0,
      "optional_values": [
        0,
        1
      ]
    }
  },
  "not_implemented": [
    "PDA-to-CFG or Parikh conversion",
    "PVASS amalgamation or embedding witnesses",
    "PVASS reachability or downward closure",
    "unknown-bound decision or clock synthesis",
    "persistent compiler"
  ],
  "formal_verification": "none"
}