{
  "graph": {
    "concrete_edges": [
      [
        "start",
        "a"
      ],
      [
        "start",
        "b"
      ],
      [
        "a",
        "c"
      ],
      [
        "b",
        "d"
      ],
      [
        "c",
        "bad"
      ]
    ],
    "abstraction": {
      "start": "start",
      "a": "work",
      "b": "work",
      "c": "work",
      "d": "work",
      "bad": "bad"
    },
    "abstract_edges": [
      [
        "start",
        "work"
      ],
      [
        "work",
        "bad"
      ],
      [
        "work",
        "work"
      ]
    ],
    "checks": [
      "All concrete edges map to an abstract edge",
      "Self-loop retained",
      "Bad remains reachable",
      "Deleting Work-to-Bad falsely removes the bad path"
    ]
  },
  "grid": {
    "rows": [
      {
        "s": 0,
        "r": 0,
        "feasible": false,
        "cost": 0
      },
      {
        "s": 1,
        "r": 0,
        "feasible": false,
        "cost": 1
      },
      {
        "s": 2,
        "r": 0,
        "feasible": false,
        "cost": 4
      },
      {
        "s": 3,
        "r": 0,
        "feasible": false,
        "cost": 9
      },
      {
        "s": 4,
        "r": 0,
        "feasible": false,
        "cost": 16
      },
      {
        "s": 5,
        "r": 0,
        "feasible": false,
        "cost": 25
      },
      {
        "s": 6,
        "r": 0,
        "feasible": false,
        "cost": 36
      },
      {
        "s": 7,
        "r": 0,
        "feasible": false,
        "cost": 49
      },
      {
        "s": 8,
        "r": 0,
        "feasible": true,
        "cost": 64
      },
      {
        "s": 9,
        "r": 0,
        "feasible": true,
        "cost": 81
      },
      {
        "s": 10,
        "r": 0,
        "feasible": true,
        "cost": 100
      },
      {
        "s": 0,
        "r": 1,
        "feasible": false,
        "cost": 2
      },
      {
        "s": 1,
        "r": 1,
        "feasible": false,
        "cost": 3
      },
      {
        "s": 2,
        "r": 1,
        "feasible": false,
        "cost": 6
      },
      {
        "s": 3,
        "r": 1,
        "feasible": false,
        "cost": 11
      },
      {
        "s": 4,
        "r": 1,
        "feasible": false,
        "cost": 18
      },
      {
        "s": 5,
        "r": 1,
        "feasible": false,
        "cost": 27
      },
      {
        "s": 6,
        "r": 1,
        "feasible": false,
        "cost": 38
      },
      {
        "s": 7,
        "r": 1,
        "feasible": false,
        "cost": 51
      },
      {
        "s": 8,
        "r": 1,
        "feasible": true,
        "cost": 66
      },
      {
        "s": 9,
        "r": 1,
        "feasible": true,
        "cost": 83
      },
      {
        "s": 10,
        "r": 1,
        "feasible": true,
        "cost": 102
      },
      {
        "s": 0,
        "r": 2,
        "feasible": false,
        "cost": 8
      },
      {
        "s": 1,
        "r": 2,
        "feasible": false,
        "cost": 9
      },
      {
        "s": 2,
        "r": 2,
        "feasible": false,
        "cost": 12
      },
      {
        "s": 3,
        "r": 2,
        "feasible": false,
        "cost": 17
      },
      {
        "s": 4,
        "r": 2,
        "feasible": false,
        "cost": 24
      },
      {
        "s": 5,
        "r": 2,
        "feasible": false,
        "cost": 33
      },
      {
        "s": 6,
        "r": 2,
        "feasible": false,
        "cost": 44
      },
      {
        "s": 7,
        "r": 2,
        "feasible": true,
        "cost": 57
      },
      {
        "s": 8,
        "r": 2,
        "feasible": true,
        "cost": 72
      },
      {
        "s": 9,
        "r": 2,
        "feasible": true,
        "cost": 89
      },
      {
        "s": 10,
        "r": 2,
        "feasible": true,
        "cost": 108
      },
      {
        "s": 0,
        "r": 3,
        "feasible": false,
        "cost": 18
      },
      {
        "s": 1,
        "r": 3,
        "feasible": false,
        "cost": 19
      },
      {
        "s": 2,
        "r": 3,
        "feasible": false,
        "cost": 22
      },
      {
        "s": 3,
        "r": 3,
        "feasible": false,
        "cost": 27
      },
      {
        "s": 4,
        "r": 3,
        "feasible": false,
        "cost": 34
      },
      {
        "s": 5,
        "r": 3,
        "feasible": false,
        "cost": 43
      },
      {
        "s": 6,
        "r": 3,
        "feasible": false,
        "cost": 54
      },
      {
        "s": 7,
        "r": 3,
        "feasible": true,
        "cost": 67
      },
      {
        "s": 8,
        "r": 3,
        "feasible": true,
        "cost": 82
      },
      {
        "s": 9,
        "r": 3,
        "feasible": true,
        "cost": 99
      },
      {
        "s": 10,
        "r": 3,
        "feasible": true,
        "cost": 118
      },
      {
        "s": 0,
        "r": 4,
        "feasible": false,
        "cost": 32
      },
      {
        "s": 1,
        "r": 4,
        "feasible": false,
        "cost": 33
      },
      {
        "s": 2,
        "r": 4,
        "feasible": false,
        "cost": 36
      },
      {
        "s": 3,
        "r": 4,
        "feasible": false,
        "cost": 41
      },
      {
        "s": 4,
        "r": 4,
        "feasible": false,
        "cost": 48
      },
      {
        "s": 5,
        "r": 4,
        "feasible": false,
        "cost": 57
      },
      {
        "s": 6,
        "r": 4,
        "feasible": true,
        "cost": 68
      },
      {
        "s": 7,
        "r": 4,
        "feasible": true,
        "cost": 81
      },
      {
        "s": 8,
        "r": 4,
        "feasible": true,
        "cost": 96
      },
      {
        "s": 9,
        "r": 4,
        "feasible": true,
        "cost": 113
      },
      {
        "s": 10,
        "r": 4,
        "feasible": true,
        "cost": 132
      }
    ],
    "feasible_count": 19,
    "winner": {
      "s": 7,
      "r": 2,
      "feasible": true,
      "cost": 57
    },
    "digital_controls": "all five enabled",
    "scope": "This renderer checks the 55-cell slice. The separate lab certificate establishes the global integer lower bound."
  }
}