Gurobi 5.0.1 (linux64) logging started Wed Apr 24 02:39:25 2013 Optimize a model with 54166 rows, 53436 columns and 213306 nonzeros Presolve removed 73 rows and 0 columns Presolve time: 0.24s Presolved: 54093 rows, 53436 columns, 213233 nonzeros Variable types: 53363 continuous, 73 integer (73 binary) Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 7493 6.2509655e+04 2.301736e+00 0.000000e+00 5s 7508 6.2510107e+04 0.000000e+00 0.000000e+00 5s Root relaxation: objective 6.251011e+04, 7508 iterations, 5.15 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 62510.1069 0 58 - 62510.1069 - - 5s H 0 0 107315.00000 62510.1069 41.8% - 8s 0 0 81046.3577 0 17 107315.000 81046.3577 24.5% - 17s H 0 0 98002.000000 81046.3577 17.3% - 18s 0 0 87393.0442 0 5 98002.0000 87393.0442 10.8% - 20s H 0 0 94807.287697 87393.0442 7.82% - 20s H 0 0 94283.000000 87393.0442 7.31% - 20s 0 0 87661.5303 0 2 94283.0000 87661.5303 7.02% - 21s H 0 0 92793.024012 87661.5303 5.53% - 21s H 0 0 91410.000000 87661.5303 4.10% - 21s 0 0 87743.7153 0 2 91410.0000 87743.7153 4.01% - 21s H 0 0 90053.256844 87743.7153 2.56% - 21s H 0 0 88627.000000 87743.7153 1.00% - 21s 0 2 87744.0664 0 2 88627.0000 87744.0664 1.00% - 23s H 3 3 88262.269231 87765.6576 0.56% 110 24s H 5 5 88161.000000 87768.2667 0.45% 95.8 24s 10 8 87811.9688 10 1 88161.0000 87769.5938 0.44% 124 25s H 15 7 88129.909091 87769.5938 0.41% 136 25s H 25 7 88026.000000 87769.5938 0.29% 141 27s * 26 6 5 87902.000000 87776.8826 0.14% 146 27s * 33 1 7 87871.000000 87869.0000 0.00% 135 27s Cutting planes: Gomory: 1 Implied bound: 72 Explored 34 nodes (20963 simplex iterations) in 27.55 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.787100000000e+04, best bound 8.786900000000e+04, gap 0.0023%