Gurobi 5.0.1 (linux64) logging started Sun Nov 18 01:52:39 2012 Optimize a model with 190 rows, 440 columns and 440 nonzeros Model has 378 quadratic constraints Presolve time: 2.21s Presolved: 190 rows, 440 columns, 440 nonzeros Variable types: 378 continuous, 62 integer (62 binary) Root relaxation: objective 0.000000e+00, 31 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 103.0000000 - - - 2s 0 0 0.00000 0 42 103.00000 0.00000 100% - 2s 0 0 0.29053 0 61 103.00000 0.29053 100% - 2s H 0 0 99.0000000 0.29053 100% - 2s 0 2 0.32639 0 61 99.00000 0.32639 100% - 2s H 45 45 62.0000000 3.86722 93.8% 39.5 2s * 52 50 29 60.0000000 3.86722 93.6% 38.7 2s * 125 104 23 57.0000000 5.63636 90.1% 39.5 2s H 182 147 53.0000000 9.15764 82.7% 43.2 2s H 220 162 50.0000000 9.29738 81.4% 42.3 2s * 220 161 20 49.0000000 9.29738 81.0% 42.3 2s * 257 163 15 47.0000000 11.18615 76.2% 42.6 2s * 271 143 18 45.0000000 11.18615 75.1% 41.4 2s 1076 412 44.30909 46 265 45.00000 19.80000 56.0% 47.1 5s 5652 1726 41.23529 47 247 45.00000 30.83333 31.5% 24.9 10s * 6885 1895 52 44.0000000 31.93939 27.4% 23.8 11s 9176 2026 42.42222 39 238 44.00000 33.97872 22.8% 22.5 15s 9506 2018 42.00000 38 240 44.00000 34.24275 22.2% 22.5 20s 12598 1768 40.27273 37 232 44.00000 36.76923 16.4% 21.6 25s 15605 833 40.96078 37 258 44.00000 39.57143 10.1% 21.2 30s Explored 16850 nodes (348626 simplex iterations) in 31.24 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.400000000000e+01, best bound 4.400000000000e+01, gap 0.0%