Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:45:12 2012 Optimize a model with 193 rows, 465 columns and 465 nonzeros Model has 384 quadratic constraints Presolve time: 2.24s Presolved: 193 rows, 465 columns, 465 nonzeros Variable types: 384 continuous, 81 integer (81 binary) Root relaxation: objective 0.000000e+00, 40 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 111.0000000 - - - 2s 0 0 0.00000 0 41 111.00000 0.00000 100% - 2s 0 0 0.02273 0 80 111.00000 0.02273 100% - 2s 0 2 0.02639 0 80 111.00000 0.02639 100% - 2s H 52 52 46.0000000 1.66667 96.4% 48.3 2s * 56 56 30 45.0000000 1.66667 96.3% 47.5 2s H 95 85 44.0000000 2.00000 95.5% 45.7 2s * 100 86 26 43.0000000 2.00000 95.3% 44.7 2s H 188 153 42.0000000 4.29825 89.8% 42.5 2s H 189 150 41.0000000 4.29825 89.5% 42.2 2s * 305 213 21 40.0000000 6.46154 83.8% 42.4 2s 940 492 31.48276 37 286 40.00000 13.08824 67.3% 42.8 5s 4591 1930 23.62857 32 280 40.00000 22.00000 45.0% 26.9 10s * 5766 2300 42 39.0000000 23.14286 40.7% 25.6 11s H 7760 2800 38.0000000 24.63636 35.2% 24.4 14s 7843 2802 33.49180 37 261 38.00000 24.68750 35.0% 24.4 15s 8341 2921 28.48571 36 267 38.00000 25.01613 34.2% 24.3 20s 10787 3388 33.35821 39 268 38.00000 26.15000 31.2% 23.4 25s 14195 3897 34.34328 39 281 38.00000 27.46875 27.7% 22.6 30s 17766 4218 36.66129 42 261 38.00000 28.50000 25.0% 21.8 35s *17794 3983 44 37.0000000 28.50000 23.0% 21.8 35s 21142 3909 35.89855 40 288 37.00000 29.50000 20.3% 21.4 40s 24091 3694 cutoff 39 37.00000 30.24000 18.3% 21.2 45s 27475 3228 34.81818 38 269 37.00000 31.07463 16.0% 21.0 50s 30707 2525 cutoff 38 37.00000 32.00000 13.5% 20.7 55s 35109 569 35.30435 40 286 37.00000 34.55556 6.61% 20.5 60s Explored 35736 nodes (727669 simplex iterations) in 60.38 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.700000000005e+01, best bound 3.700000000005e+01, gap 0.0%