Gurobi 5.0.1 (linux64) logging started Mon Feb  4 19:08:37 2013

Optimize a model with 73226 rows, 5776 columns and 222376 nonzeros
Presolve removed 4554 rows and 2913 columns
Presolve time: 0.60s
Presolved: 68672 rows, 2863 columns, 208639 nonzeros
Variable types: 36 continuous, 2827 integer (2827 binary)
Found heuristic solution: objective 121708.00000

Root relaxation: objective 8.791616e+04, 23402 iterations, 2.40 seconds

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

     0     0 87916.1590    0   11 121708.000 87916.1590  27.8%     -    3s
H    0     0                    87934.000000 87916.1590  0.02%     -    3s
H    0     0                    87924.000000 87916.1590  0.01%     -    3s

Explored 0 nodes (23428 simplex iterations) in 3.34 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 8.792400000000e+04, best bound 8.791700000000e+04, gap 0.0080%