Gurobi 5.0.1 (linux64) logging started Sat Nov 17 22:30:29 2012 Optimize a model with 241 rows, 512 columns and 512 nonzeros Model has 480 quadratic constraints Presolve time: 2.80s Presolved: 241 rows, 512 columns, 512 nonzeros Variable types: 480 continuous, 32 integer (32 binary) Root relaxation: objective 0.000000e+00, 16 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 121.0000000 - - - 2s 0 0 0.00000 0 32 121.00000 0.00000 100% - 2s 0 0 0.57143 0 32 121.00000 0.57143 100% - 2s 0 0 0.57143 0 32 121.00000 0.57143 100% - 2s 0 2 0.57143 0 32 121.00000 0.57143 100% - 2s * 46 46 25 106.0000000 6.71118 93.7% 50.9 2s H 86 73 99.0000000 6.85714 93.1% 51.7 2s H 275 211 98.0000000 13.00000 86.7% 49.3 3s 617 386 51.44000 16 251 98.00000 26.82180 72.6% 55.3 5s 3402 1594 71.04545 36 330 98.00000 45.00000 54.1% 38.5 10s * 6902 3145 41 97.0000000 52.50000 45.9% 31.9 14s 7057 3180 95.43750 37 237 97.00000 52.84211 45.5% 31.8 15s H 8691 3772 96.0000000 55.16667 42.5% 30.5 17s H 8719 3503 92.0000000 55.17683 40.0% 30.5 18s 9100 3591 83.73022 34 280 92.00000 55.62500 39.5% 30.4 20s 10651 4070 80.71429 47 285 92.00000 57.45630 37.5% 29.6 25s 14042 4930 85.89474 41 293 92.00000 60.75000 34.0% 28.7 30s 17089 5534 83.86246 32 286 92.00000 63.00000 31.5% 28.2 35s 20768 6208 78.14286 38 272 92.00000 65.16667 29.2% 27.6 40s 22834 6492 86.00000 45 271 92.00000 66.25591 28.0% 27.4 45s 26520 7033 82.05000 32 300 92.00000 68.00000 26.1% 27.0 50s 30282 7470 89.16667 38 288 92.00000 69.61538 24.3% 26.7 55s 34071 7846 cutoff 54 92.00000 71.00000 22.8% 26.3 60s 37878 8032 88.71429 40 268 92.00000 72.23529 21.5% 26.1 65s 41100 8170 91.00000 35 279 92.00000 73.15385 20.5% 25.9 76s 42775 8207 cutoff 40 92.00000 73.66667 19.9% 25.9 80s 46622 8242 86.20844 32 306 92.00000 74.90095 18.6% 25.7 85s 50562 8218 cutoff 35 92.00000 76.00000 17.4% 25.6 90s 54522 8107 80.50000 41 275 92.00000 76.90000 16.4% 25.4 95s 58376 7929 85.10526 39 262 92.00000 77.66667 15.6% 25.2 100s 62012 7711 cutoff 36 92.00000 78.44444 14.7% 25.1 105s 66061 7323 87.63636 48 281 92.00000 79.40000 13.7% 24.9 110s 69960 6898 84.57895 41 281 92.00000 80.16667 12.9% 24.8 115s 73862 6303 cutoff 43 92.00000 81.00000 12.0% 24.7 120s 77838 5580 cutoff 43 92.00000 82.00000 10.9% 24.6 125s 80675 4859 87.21053 36 272 92.00000 83.00000 9.78% 24.6 130s 84850 3514 cutoff 37 92.00000 84.50000 8.15% 24.4 135s 89829 801 cutoff 38 92.00000 88.36364 3.95% 24.1 140s Explored 90881 nodes (2172462 simplex iterations) in 140.62 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.200000000060e+01, best bound 9.200000000060e+01, gap 0.0%