{"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":null,"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":"ab1f173e14be2f37175006007ad95a2f2a68fb926aff1af249fced1a4f00dd03","signature":"e3257b85df3f2a45098eb86caac9ef830e4dc6594332c08a77bbf6719caa4290722f73de7cb64db1eb3c1844c5ab099057ed8d965d6e5f031d3180c05e5f830f"}}}