Gurobi 5.0.1 (linux64) logging started Sun Nov 18 02:20:11 2012 Optimize a model with 209 rows, 479 columns and 479 nonzeros Model has 416 quadratic constraints Presolve time: 2.43s Presolved: 209 rows, 479 columns, 479 nonzeros Variable types: 416 continuous, 63 integer (63 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 98.0000000 - - - 2s 0 0 0.00000 0 39 98.00000 0.00000 100% - 2s 0 0 0.27322 0 61 98.00000 0.27322 100% - 2s 0 2 0.28509 0 61 98.00000 0.28509 100% - 2s H 54 54 81.0000000 5.21569 93.6% 38.3 2s * 60 60 33 67.0000000 5.21569 92.2% 36.5 2s * 114 95 29 62.0000000 5.40909 91.3% 34.3 2s H 223 180 58.0000000 6.40000 89.0% 39.6 2s * 223 178 23 57.0000000 6.40000 88.8% 39.6 2s 817 505 37.00000 35 289 57.00000 14.28000 74.9% 50.5 5s 4437 2357 42.50000 37 278 57.00000 26.08696 54.2% 27.9 10s * 5305 2717 49 56.0000000 27.34089 51.2% 26.6 11s H 5717 2768 54.0000000 27.75000 48.6% 25.9 11s 7537 3574 35.12540 35 284 54.00000 30.33721 43.8% 24.6 15s 7863 3719 52.82609 47 263 54.00000 30.68179 43.2% 24.3 20s 9126 4184 40.01513 35 292 54.00000 31.69231 41.3% 23.7 25s 12250 5312 43.48148 44 283 54.00000 33.33333 38.3% 22.7 30s 15268 6302 cutoff 43 54.00000 34.51255 36.1% 22.2 35s 18900 7293 48.79126 37 288 54.00000 35.82491 33.7% 21.7 40s 22717 8233 51.02041 42 286 54.00000 36.95455 31.6% 21.3 45s *23595 8159 54 53.0000000 37.09007 30.0% 21.2 46s 24749 8348 cutoff 35 53.00000 37.39130 29.5% 21.1 50s 27721 8766 47.10204 37 270 53.00000 38.15911 28.0% 21.0 55s 30710 9172 47.74301 35 274 53.00000 38.96760 26.5% 20.8 60s 33771 9481 48.75785 47 267 53.00000 39.57695 25.3% 20.7 65s 37539 9818 49.64706 52 289 53.00000 40.34783 23.9% 20.6 70s 40804 10041 cutoff 46 53.00000 40.94118 22.8% 20.5 83s 42197 10110 50.60000 44 265 53.00000 41.10300 22.4% 20.5 85s 46063 10260 44.22642 45 270 53.00000 41.81818 21.1% 20.3 90s 49909 10359 43.82866 40 285 53.00000 42.37500 20.0% 20.2 95s *51240 9951 41 52.0000000 42.56600 18.1% 20.2 96s 51565 9928 48.42817 45 276 52.00000 42.63636 18.0% 20.2 100s 55361 9658 49.50000 33 268 52.00000 43.25550 16.8% 20.2 105s 58777 9322 49.61224 39 281 52.00000 43.87412 15.6% 20.1 110s 62285 8722 49.38776 36 275 52.00000 44.50000 14.4% 20.1 115s 65124 8161 47.16000 41 284 52.00000 45.00000 13.5% 20.1 120s 69280 7154 50.66881 37 301 52.00000 45.75000 12.0% 20.1 125s 73495 5863 cutoff 45 52.00000 46.50000 10.6% 20.0 130s 77810 3984 49.44898 38 268 52.00000 47.51301 8.63% 19.9 135s 83200 320 50.50000 45 281 52.00000 50.50000 2.88% 19.6 140s Explored 83533 nodes (1630107 simplex iterations) in 140.79 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.200000000006e+01, best bound 5.200000000006e+01, gap 0.0%