Gurobi 5.0.1 (linux64) logging started Wed Apr 24 02:53:34 2013

Optimize a model with 825 rows, 56325 columns and 112575 nonzeros
Presolve time: 0.08s
Presolved: 825 rows, 56325 columns, 112575 nonzeros
Variable types: 56250 continuous, 75 integer (75 binary)

Root relaxation: objective 8.456533e+04, 2105 iterations, 0.07 seconds

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

     0     0 84565.3252    0    4          - 84565.3252     -      -    0s
H    0     0                    90279.000000 84565.3252  6.33%     -    0s
H    0     0                    84971.000000 84565.3252  0.48%     -    0s
     0     0 84579.0191    0    3 84971.0000 84579.0191  0.46%     -    0s
     0     0 84579.0191    0    4 84971.0000 84579.0191  0.46%     -    0s
     0     0 84579.0191    0    3 84971.0000 84579.0191  0.46%     -    0s
     0     0 84582.6794    0    3 84971.0000 84582.6794  0.46%     -    0s
     0     0 84583.8890    0    3 84971.0000 84583.8890  0.46%     -    0s
     0     0 84583.8890    0    3 84971.0000 84583.8890  0.46%     -    0s
     0     0 84583.8890    0    3 84971.0000 84583.8890  0.46%     -    0s
     0     0 84583.8890    0    3 84971.0000 84583.8890  0.46%     -    0s
     0     0 84583.8890    0    3 84971.0000 84583.8890  0.46%     -    1s
     0     0 84584.3629    0    2 84971.0000 84584.3629  0.46%     -    1s
     0     2 84587.5833    0    2 84971.0000 84587.5833  0.45%     -    1s
*   11     5               9    84893.000000 84705.3584  0.22%  76.1    1s
*   13     2               8    84883.000000 84705.3584  0.21%  67.8    1s

Cutting planes:
  Implied bound: 34
  Flow cover: 4

Explored 18 nodes (5053 simplex iterations) in 1.54 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 8.488300000000e+04, best bound 8.488300000000e+04, gap 0.0%