files / problems / schur / compute / q3 / q3_search_summary.json
{
"campaign": "q3",
"date": "2026-08-23",
"result": "residue-no-1697-witness",
"published_base": {
"file": "rowley_1696.txt",
"sha256": "feef1da7e70d328e2b0771a4b0f8b91329f2f832482a6103c72cb12524c40896",
"length": 1696,
"valid": true,
"pairs_checked": 719104
},
"unrestricted_search": {
"implementation": "search_unrestricted.c",
"source": "rowley_1696.txt",
"random_seed": 22,
"restarts": 5,
"moves": 1829375,
"elapsed_seconds": 180.295199,
"best_violations": 2,
"near_coloring": "near_1697_two_violations.txt",
"near_sha256": "539c5240eacc3c33fbc0543fb0767d8f4f8a5ca163941a695b21a53b09044db1",
"violations": [
[537, 537, 1074, 6],
[537, 640, 1177, 6]
]
},
"restart_from_two_violation_residue": {
"random_seeds": [101, 202, 303, 404],
"seconds_each": 180,
"best_violations_each": [2, 2, 2, 2],
"result": "timeouts-no-improvement"
},
"lazy_core_guided_repair": {
"log": "repair_cegar_seed22.json",
"solver": "glucose42",
"seconds": 60.01867,
"active_edges": 216924,
"pins_released": 1051,
"best_violations": 2,
"result": "timeout"
},
"full_core_guided_repair": {
"log": "repair_full_sat_seed22.json",
"solver": "glucose42",
"schur_edges": 719952,
"clauses": 5076998,
"encoding_seconds": 6.242937,
"solve_seconds": 120.028082,
"iterations": 17,
"pins_released": 1498,
"pins_remaining": 199,
"result": "timeout"
},
"color_twisted_reflection": {
"log": "twisted_reflection_glucose42.json",
"symmetry": "c(1698-x)=pi(c(x))",
"permutation": [1, 0, 3, 2, 5, 4, 6],
"representatives": 848,
"clauses": 5045600,
"solver": "glucose42",
"solve_seconds": 120.181519,
"result": "timeout"
},
"warning": "Timeouts and a two-violation near-coloring are residue, not a lower bound or an upper bound for S(7)."
}