Gurobi 5.0.1 (linux64) logging started Sun Nov 18 07:45:08 2012 Optimize a model with 281 rows, 791 columns and 791 nonzeros Model has 560 quadratic constraints Presolve removed 0 rows and 20 columns Presolve time: 3.27s Presolved: 281 rows, 771 columns, 771 nonzeros Variable types: 560 continuous, 211 integer (210 binary) Root relaxation: objective 0.000000e+00, 83 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 143.0000000 - - - 3s 0 0 0.00000 0 85 143.00000 0.00000 100% - 3s 0 0 0.00000 0 66 143.00000 0.00000 100% - 3s 0 0 0.00000 0 59 143.00000 0.00000 100% - 3s 0 2 0.00000 0 58 143.00000 0.00000 100% - 3s H 79 75 29.0000000 1.46892 94.9% 31.1 3s * 79 71 61 28.0000000 1.46892 94.8% 31.2 3s * 210 159 31 27.0000000 3.39189 87.4% 26.0 3s * 247 139 24 25.0000000 3.60075 85.6% 25.9 3s 606 341 6.57143 16 454 25.00000 6.57143 73.7% 29.4 5s * 1071 439 49 24.0000000 9.08333 62.2% 38.7 7s H 2022 488 23.0000000 13.35357 41.9% 34.0 9s 2292 544 cutoff 34 23.00000 13.88785 39.6% 34.3 10s H 3243 647 22.0000000 15.07407 31.5% 34.4 14s 3341 645 17.77326 34 434 22.00000 15.17600 31.0% 34.3 15s 4223 606 20.82829 34 386 22.00000 16.50000 25.0% 33.5 20s 5438 430 20.66460 36 411 22.00000 17.77922 19.2% 33.5 25s Explored 6506 nodes (218717 simplex iterations) in 29.45 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.200000000000e+01, best bound 2.200000000000e+01, gap 0.0%