{
  "request": {
    "program": "#! title Three colours, four regions: this fails\n#! about Four regions, two triangles sharing a side. There are six good ways to colour it, and none of them has the lowest energy, for the same reason: 0 is not just a third colour.\n#! expect fails\n#! check different 0-1 0-2 1-2 1-3 2-3\nvars 4\noppose 0 1\noppose 0 2\noppose 1 2\noppose 1 3\noppose 2 3\nsolve restarts=8 steps=40\n",
    "seeds": 2
  },
  "result": {
    "protocol": "wai.quantum.landscape/1",
    "label": "A classical emulator of the settling model of a planned energy-based processor, running on your machine. Energies are computed exactly. The joule line is this run's operation count priced at rates measured on an FPGA, with a published figure for one integer add beside it for scale. No photonic hardware, custom chip or quantum effect is involved in this run.",
    "member": {
      "id": "cpu:reference",
      "class": "cpu",
      "kernels": [
        {
          "kernel": "wai.quantum.landscape/sample",
          "parity": "reference"
        }
      ]
    },
    "target": -3,
    "target_is_exact": true,
    "arrangements": 81,
    "rows": [
      {
        "solver": "emulator, sampling, starting at 1.581",
        "classical": false,
        "parity": "reference",
        "runs": 2,
        "reached_target": 2,
        "passed_checks": 0,
        "best_energy": -3,
        "operations_per_run": 4480,
        "accumulates_per_run": 3200
      },
      {
        "solver": "emulator, deterministic",
        "classical": false,
        "parity": "reference",
        "runs": 2,
        "reached_target": 1,
        "passed_checks": 1,
        "best_energy": -3,
        "operations_per_run": 4480,
        "accumulates_per_run": 3200
      },
      {
        "solver": "simulated annealing",
        "classical": true,
        "parity": null,
        "runs": 2,
        "reached_target": 2,
        "passed_checks": 0,
        "best_energy": -3,
        "operations_per_run": 4482,
        "accumulates_per_run": 2136
      },
      {
        "solver": "tabu search",
        "classical": true,
        "parity": null,
        "runs": 2,
        "reached_target": 2,
        "passed_checks": 0,
        "best_energy": -3,
        "operations_per_run": 4485,
        "accumulates_per_run": 1077
      },
      {
        "solver": "greedy descent",
        "classical": true,
        "parity": "reference",
        "runs": 2,
        "reached_target": 2,
        "passed_checks": 0,
        "best_energy": -3,
        "operations_per_run": 4483,
        "accumulates_per_run": 2087
      }
    ],
    "engine": {
      "name": "wai-quantum",
      "version": "0.9.0"
    },
    "schema": "wai.quantum.landscape/1",
    "receipt": {
      "alg": "ed25519",
      "canon": "rfc8785",
      "key": "197f6b23e16c8532c6abc838facd5ea789be0c76b2920334039bfa8b3d368d61",
      "digest": "ddb65e22ff75d66fc5738de8c6ccd8c2a1f841fdabd819c536ad60b126cad107",
      "signature": "c7a4b7cc4cf1aab4ebfc03d2298bdf194dfc8ca059d34ba3f5bd3725324f5f1dec981c2ad26e627cb4c2144488e0bc5ccbbd553668cd21e45c9901118f8f1701"
    }
  }
}