Gurobi 5.0.1 (linux64) logging started Sun Nov 18 01:09:14 2012 Optimize a model with 363 rows, 239 columns and 1144 nonzeros Presolve time: 0.00s Presolved: 363 rows, 239 columns, 1144 nonzeros Variable types: 0 continuous, 239 integer (239 binary) Found heuristic solution: objective 89.0000000 Root relaxation: objective 0.000000e+00, 80 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 58 89.00000 0.00000 100% - 0s H 0 0 88.0000000 0.00000 100% - 0s H 0 0 66.0000000 0.00000 100% - 0s 0 0 0.53704 0 59 66.00000 0.53704 99.2% - 0s 0 0 1.13793 0 61 66.00000 1.13793 98.3% - 0s 0 0 1.15043 0 62 66.00000 1.15043 98.3% - 0s 0 0 1.22414 0 61 66.00000 1.22414 98.1% - 0s 0 0 1.29885 0 61 66.00000 1.29885 98.0% - 0s 0 0 1.32414 0 63 66.00000 1.32414 98.0% - 0s 0 0 1.32759 0 61 66.00000 1.32759 98.0% - 0s 0 0 1.32759 0 62 66.00000 1.32759 98.0% - 0s 0 0 1.32759 0 60 66.00000 1.32759 98.0% - 0s H 0 0 58.0000000 1.32759 97.7% - 0s 0 2 1.42293 0 60 58.00000 1.42293 97.5% - 0s * 39 35 22 56.0000000 5.11061 90.9% 30.3 0s * 42 34 22 55.0000000 5.11061 90.7% 28.7 0s * 113 81 24 54.0000000 7.86207 85.4% 30.7 0s * 179 136 22 53.0000000 7.90038 85.1% 30.8 0s * 183 132 21 52.0000000 7.90038 84.8% 30.4 0s H 300 205 51.0000000 12.83448 74.8% 30.4 0s * 329 189 16 48.0000000 12.85517 73.2% 29.8 0s * 570 292 17 47.0000000 18.33271 61.0% 28.3 0s H 574 285 46.0000000 18.33271 60.1% 28.1 0s 5806 877 44.55814 25 121 46.00000 32.56410 29.2% 23.1 5s 14168 764 41.14286 23 112 46.00000 37.76471 17.9% 20.3 10s Explored 18450 nodes (360306 simplex iterations) in 11.95 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.600000000000e+01, best bound 4.600000000000e+01, gap 0.0%