Gurobi 5.0.1 (linux64) logging started Wed Apr 24 03:13:53 2013 Optimize a model with 60214 rows, 59444 columns and 237314 nonzeros Presolve removed 77 rows and 0 columns Presolve time: 0.27s Presolved: 60137 rows, 59444 columns, 237237 nonzeros Variable types: 59367 continuous, 77 integer (77 binary) Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 6923 7.0798215e+04 5.311759e+04 0.000000e+00 5s 8004 7.1069603e+04 0.000000e+00 0.000000e+00 7s Root relaxation: objective 7.106960e+04, 8004 iterations, 7.18 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 71069.6032 0 57 - 71069.6032 - - 7s H 0 0 121872.00000 71069.6032 41.7% - 11s 0 0 95217.9730 0 20 121872.000 95217.9730 21.9% - 23s H 0 0 115534.00000 95217.9730 17.6% - 24s H 0 0 114524.00000 95217.9730 16.9% - 25s 0 0 100460.263 0 8 114524.000 100460.263 12.3% - 28s H 0 0 111051.82010 100460.263 9.54% - 28s H 0 0 106265.00000 100460.263 5.46% - 28s 0 0 102300.607 0 5 106265.000 102300.607 3.73% - 30s 0 0 102536.977 0 3 106265.000 102536.977 3.51% - 31s H 0 0 106048.00000 102536.977 3.31% - 31s H 0 0 103338.00000 102536.977 0.78% - 31s 0 2 102537.523 0 3 103338.000 102537.523 0.77% - 32s H 8 4 103003.50000 102656.380 0.34% 203 34s H 11 5 102985.92308 102656.380 0.32% 175 34s * 12 5 11 102973.00000 102656.380 0.31% 175 35s Cutting planes: Implied bound: 77 Explored 35 nodes (27521 simplex iterations) in 37.36 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.029730000000e+05, best bound 1.029704727273e+05, gap 0.0025%