Gurobi 5.0.1 (linux64) logging started Sun Nov 18 01:42:27 2012 Optimize a model with 206 rows, 471 columns and 471 nonzeros Model has 410 quadratic constraints Presolve time: 2.39s Presolved: 206 rows, 471 columns, 471 nonzeros Variable types: 410 continuous, 61 integer (61 binary) Root relaxation: objective 0.000000e+00, 30 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 107.0000000 - - - 2s 0 0 0.00000 0 44 107.00000 0.00000 100% - 2s 0 0 0.22743 0 60 107.00000 0.22743 100% - 2s 0 2 0.30189 0 60 107.00000 0.30189 100% - 2s H 54 54 60.0000000 4.85323 91.9% 32.1 2s * 62 60 37 58.0000000 4.85323 91.6% 29.7 2s 818 539 42.26017 37 234 58.00000 16.50102 71.5% 51.4 5s * 3873 1891 62 57.0000000 28.20158 50.5% 31.9 9s 4161 2039 32.70370 39 272 57.00000 28.81250 49.5% 31.0 10s H 5964 2758 55.0000000 31.17796 43.3% 28.2 13s 6126 2827 44.74510 45 267 55.00000 31.38655 42.9% 28.0 15s H 6183 2717 54.0000000 31.48170 41.7% 27.9 16s H 6241 2574 53.0000000 31.57500 40.4% 27.9 18s 6912 2792 52.80631 47 239 53.00000 32.13889 39.4% 27.2 20s 8529 3298 50.45238 47 246 53.00000 33.59062 36.6% 26.0 25s 11377 4121 51.12985 49 218 53.00000 35.37047 33.3% 24.4 30s 13950 4754 51.37500 48 274 53.00000 36.48780 31.2% 23.6 35s 17026 5428 50.49723 37 272 53.00000 37.75546 28.8% 22.9 40s 20855 6122 51.69450 41 258 53.00000 39.00000 26.4% 22.2 45s 24816 6715 44.30641 40 277 53.00000 40.06817 24.4% 21.7 50s 28993 7288 cutoff 43 53.00000 41.08606 22.5% 21.2 55s 31170 7530 45.96936 38 241 53.00000 41.61538 21.5% 21.0 60s 35324 7926 cutoff 46 53.00000 42.37812 20.0% 20.7 65s 39506 8236 cutoff 43 53.00000 43.05978 18.8% 20.4 70s 41200 8348 51.20833 47 287 53.00000 43.35423 18.2% 20.4 80s 44408 8490 cutoff 53 53.00000 43.80932 17.3% 20.2 85s 48387 8605 51.11047 38 242 53.00000 44.33135 16.4% 19.9 90s 52266 8625 51.90847 52 273 53.00000 44.85714 15.4% 19.7 95s 55369 8598 51.20349 45 244 53.00000 45.24138 14.6% 19.6 100s 57850 8521 50.31965 40 248 53.00000 45.52632 14.1% 19.5 105s 60154 8430 52.10310 46 250 53.00000 45.79378 13.6% 19.3 110s 64397 8162 50.70849 43 267 53.00000 46.26017 12.7% 19.2 115s 68837 7676 47.48256 45 263 53.00000 46.78448 11.7% 19.0 120s 72215 7264 50.68576 47 264 53.00000 47.20384 10.9% 18.9 125s 75169 6777 cutoff 37 53.00000 47.60166 10.2% 18.8 130s 79470 5900 51.39031 41 272 53.00000 48.18746 9.08% 18.6 135s 83581 4733 cutoff 44 53.00000 48.88347 7.77% 18.5 140s 87250 3120 52.21346 54 248 53.00000 49.75000 6.13% 18.4 145s 90753 1034 cutoff 45 53.00000 51.15987 3.47% 18.2 150s Explored 92185 nodes (1665311 simplex iterations) in 150.85 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.300000000006e+01, best bound 5.300000000006e+01, gap 0.0%