Gurobi 5.0.1 (linux64) logging started Mon Feb  4 18:59:39 2013

Optimize a model with 41727 rows, 3969 columns and 127008 nonzeros
Presolve removed 5809 rows and 2056 columns
Presolve time: 0.32s
Presolved: 35918 rows, 1913 columns, 109369 nonzeros
Variable types: 27 continuous, 1886 integer (1886 binary)
Found heuristic solution: objective 85056.000000

Root relaxation: objective 6.263043e+04, 15343 iterations, 1.37 seconds

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

     0     0 62630.4287    0    9 85056.0000 62630.4287  26.4%     -    1s
H    0     0                    62636.000000 62630.4287  0.01%     -    1s

Explored 0 nodes (15370 simplex iterations) in 1.86 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 6.263600000000e+04, best bound 6.263100000000e+04, gap 0.0080%