open-standards/wai/quantum-conformance/receipts/jobs/crafted-contract-stopped-kept-claimed.json

{
  "status": "done",
  "method": "stabilizer",
  "why": "Clifford circuit: the stabilizer tableau of 2 qubits; the cheapest of the 4 of 13 routes that meet the contract",
  "estimate": {
    "memory_bytes": 67172870,
    "work": 2008
  },
  "request": {
    "qasm": "OPENQASM 3.0;\ninclude \"stdgates.inc\";\nqubit[2] q;\nbit[2] c;\nh q[0];\ncx q[0], q[1];\nc = measure q;\n",
    "shots": 1000,
    "seed": 7,
    "contract": {
      "exactness": "exact",
      "max_cost": {
        "amount": "1",
        "currency": "USD"
      },
      "deadline_seconds": 60.0,
      "max_joules": 2
    }
  },
  "result": {
    "method": "stabilizer",
    "qubits": 2,
    "gates": 2,
    "accuracy": {
      "class": "none",
      "note": "stopped at its ceiling"
    },
    "elapsed_ms": 0,
    "engine": {
      "name": "wai-quantum",
      "version": "0.8.1"
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    "schema": "wai.quantum.job-result/1",
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      "format": "wai.quantum.planner/1",
      "wanted": "exact",
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      "named": null,
      "question": "counts",
      "auto": "method:stabilizer",
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        "providers": []
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          "auto_rank": 20,
          "price": {
            "money": {
              "free": true
            },
            "time": {
              "seconds": 4e-08,
              "basis": "nominal"
            },
            "memory_bytes": 134217920,
            "work": 8,
            "energy": {
              "joules": 1.5,
              "basis": "an estimate",
              "watch": "a host's live reading"
            },
            "leaves_out": []
          },
          "outcome": "met"
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        {
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          "auto_rank": 30,
          "price": {
            "money": {
              "free": true
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            "time": {
              "seconds": 8e-09,
              "basis": "nominal"
            },
            "memory_bytes": 268459522,
            "work": 8,
            "energy": {
              "joules": 1.5,
              "basis": "an estimate",
              "watch": "a host's live reading"
            },
            "leaves_out": []
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        {
          "route": "method:statevector_single",
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          "method": "statevector_single",
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          "host_dependent": true,
          "auto_rank": 40,
          "price": null,
          "outcome": "rejected",
          "rejected": {
            "code": "class",
            "why": "its class is single, and the job wants exact"
          }
        },
        {
          "route": "method:stabilizer",
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          "method": "stabilizer",
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          "host_dependent": false,
          "auto_rank": 10,
          "price": {
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              "seconds": 2.4096e-07,
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            "work": 2008,
            "energy": {
              "joules": 1.5,
              "basis": "an estimate",
              "watch": "a host's live reading"
            },
            "leaves_out": []
          },
          "outcome": "chosen"
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        {
          "route": "method:pauli",
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          "host_dependent": false,
          "auto_rank": null,
          "price": null,
          "outcome": "rejected",
          "rejected": {
            "code": "class",
            "why": "its class is bounded, and the job wants exact"
          }
        },
        {
          "route": "method:mps",
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          "host_dependent": false,
          "auto_rank": 60,
          "price": {
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              "free": true
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              "basis": "an estimate",
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            },
            "leaves_out": []
          },
          "outcome": "rejected",
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            "code": "class",
            "why": "its class is heuristic, and exact only when nothing is truncated, which it cannot know before it runs; the job wants exact"
          }
        },
        {
          "route": "method:stabilizer_rank",
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          "method": "stabilizer_rank",
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          "host_dependent": false,
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          "outcome": "rejected",
          "rejected": {
            "code": "cannot",
            "why": "stabilizer_rank answers amplitudes and expectation values"
          }
        },
        {
          "route": "method:tensor_network",
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          "outcome": "rejected",
          "rejected": {
            "code": "cannot",
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          }
        },
        {
          "route": "method:cutrank",
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          "method": "cutrank",
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          "auto_rank": 50,
          "price": {
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              "free": true
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            "time": {
              "seconds": 1.35e-06,
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            "memory_bytes": 268435554,
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            "energy": {
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              "basis": "an estimate",
              "watch": "a host's live reading"
            },
            "leaves_out": []
          },
          "outcome": "met"
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        {
          "route": "method:cutrank_single",
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            "why": "its class is single, and the job wants exact"
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        },
        {
          "route": "method:density_matrix",
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          "method": "density_matrix",
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          "host_dependent": false,
          "auto_rank": null,
          "price": null,
          "outcome": "rejected",
          "rejected": {
            "code": "cannot",
            "why": "density_matrix is for noisy circuits (give \"noise\")"
          }
        },
        {
          "route": "method:trajectories",
          "kind": "local",
          "method": "trajectories",
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          "host_dependent": false,
          "auto_rank": null,
          "price": null,
          "outcome": "rejected",
          "rejected": {
            "code": "class",
            "why": "its class is estimate, and the job wants exact"
          }
        },
        {
          "route": "method:pulse",
          "kind": "local",
          "method": "pulse",
          "class": "bounded",
          "host_dependent": false,
          "auto_rank": null,
          "price": null,
          "outcome": "rejected",
          "rejected": {
            "code": "class",
            "why": "its class is bounded, and the job wants exact"
          }
        }
      ],
      "choice": "method:stabilizer",
      "why": "the cheapest of the 4 of 13 routes that meet the contract",
      "stable": {
        "scope": "digest: what each route that depends on nothing of the host costs, the same for this request and job memory on every host of one engine; choice: whether the route chosen is one of those whatever the host",
        "routes": [
          "method:exact",
          "method:statevector",
          "method:stabilizer",
          "method:pauli",
          "method:mps",
          "method:stabilizer_rank",
          "method:tensor_network",
          "method:cutrank",
          "method:density_matrix",
          "method:trajectories",
          "method:pulse"
        ],
        "digest": "30b5ed16af1556898b035da46b1d388aec9591b3194052e76020b1d83ce9567e",
        "choice": false
      },
      "kept": {
        "deadline": {
          "seconds": 60.0,
          "elapsed_ms": 0,
          "kept": true
        },
        "cost": {
          "max_cost": {
            "amount": "1",
            "currency": "USD"
          },
          "charged": null,
          "kept": true
        },
        "energy": {
          "max_joules": 2,
          "joules": 2.5,
          "kept": true
        }
      }
    },
    "energy": {
      "unmetered": "stopped"
    },
    "stopped": {
      "at": "max_joules",
      "joules": 2.5,
      "max_joules": 2,
      "elapsed_ms": 0,
      "read": "a host's live reading"
    },
    "receipt": {
      "alg": "ed25519",
      "canon": "rfc8785",
      "key": "197f6b23e16c8532c6abc838facd5ea789be0c76b2920334039bfa8b3d368d61",
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}