Gurobi 5.0.1 (linux64) logging started Sat Nov 17 21:08:49 2012 Optimize a model with 1 rows, 30 columns and 30 nonzeros Model has 216 quadratic objective terms Modified 30 Q diagonals Presolve time: 0.01s Presolved: 1 rows, 30 columns, 30 nonzeros Presolved model has 246 quadratic objective terms Variable types: 0 continuous, 30 integer (30 binary) Found heuristic solution: objective 107.0000000 Root relaxation: objective 0.000000e+00, 32 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.00000 0 30 107.00000 0.00000 100% - 0s H 0 0 92.0000000 0.00000 100% - 0s H 0 0 91.0000000 0.00000 100% - 0s 0 2 4.67116 0 30 91.00000 4.67116 94.9% - 0s H 81 71 89.0000000 8.27948 90.7% 2.0 0s H 324 267 85.0000000 13.53694 84.1% 2.0 0s H 486 386 83.0000000 16.89820 79.6% 2.0 0s 50982 21308 76.93710 31 9 83.00000 54.85021 33.9% 2.0 5s 104872 38210 79.84263 30 10 83.00000 59.32681 28.5% 2.0 10s 154524 50827 72.11906 28 12 83.00000 61.78765 25.6% 2.0 15s 203384 61203 74.96188 28 12 83.00000 63.40728 23.6% 2.0 20s 251332 69953 81.77174 29 11 83.00000 64.70308 22.0% 2.0 25s 300397 77821 75.54419 29 11 83.00000 65.81910 20.7% 2.0 30s 345320 83937 73.51625 28 12 83.00000 66.73367 19.6% 2.0 35s 394661 89591 78.04726 29 11 83.00000 67.62348 18.5% 2.0 40s 439811 93850 79.93336 30 10 83.00000 68.37082 17.6% 2.0 45s 485679 97232 81.83510 34 6 83.00000 69.05598 16.8% 2.0 50s 531560 99531 72.32263 27 13 83.00000 69.69968 16.0% 2.0 55s 576956 100839 75.63154 30 10 83.00000 70.30452 15.3% 2.0 60s 622455 101014 79.72259 30 10 83.00000 70.87078 14.6% 2.0 65s 669134 100400 80.09774 30 10 83.00000 71.41908 14.0% 2.0 70s 715862 98670 77.30947 28 12 83.00000 71.95338 13.3% 2.0 75s 762929 95899 79.27865 28 12 83.00000 72.48227 12.7% 2.0 80s 808637 92148 76.27628 28 12 83.00000 72.96977 12.1% 2.0 85s 856995 87261 78.10029 29 11 83.00000 73.49377 11.5% 2.0 90s 903458 81526 80.72583 30 10 83.00000 74.00740 10.8% 2.0 95s 951667 74528 80.28167 29 11 83.00000 74.56178 10.2% 2.0 100s 998712 66410 77.95087 29 11 83.00000 75.15095 9.46% 2.0 105s 1044364 57213 75.77379 27 13 83.00000 75.77379 8.71% 2.0 110s 1091638 45733 80.08553 29 11 83.00000 76.59021 7.72% 2.0 115s 1138680 31445 77.74728 28 12 83.00000 77.74728 6.33% 2.0 120s 1182948 12757 81.21843 31 9 83.00000 79.82649 3.82% 2.0 125s Explored 1199703 nodes (2411249 simplex iterations) in 127.27 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.300000000000e+01, best bound 8.300000000000e+01, gap 0.0%