Gurobi 5.0.1 (linux64) logging started Wed Apr 24 04:40:33 2013

Optimize a model with 73185 rows, 72335 columns and 289085 nonzeros
Presolve removed 3819 rows and 0 columns
Presolve time: 0.48s
Presolved: 69366 rows, 72335 columns, 281447 nonzeros
Variable types: 72250 continuous, 85 integer (85 binary)

Root relaxation: objective 9.699151e+04, 15871 iterations, 4.01 seconds

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

     0     0 96991.5074    0    2          - 96991.5074     -      -    4s
H    0     0                    97586.000000 96991.5074  0.61%     -    4s
     0     0 96992.8590    0    4 97586.0000 96992.8590  0.61%     -    5s
     0     0 96992.8590    0    4 97586.0000 96992.8590  0.61%     -    5s
     0     0 96992.8590    0    2 97586.0000 96992.8590  0.61%     -   12s
     0     0 96992.9182    0    5 97586.0000 96992.9182  0.61%     -   12s
     0     0 96992.9182    0    5 97586.0000 96992.9182  0.61%     -   12s
     0     2 96997.3427    0    5 97586.0000 96997.3427  0.60%     -   15s
*    4     3               3    97142.000000 97136.8437  0.01%   174   16s

Cutting planes:
  Gomory: 3
  Flow cover: 2

Explored 5 nodes (24748 simplex iterations) in 16.18 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 9.714200000000e+04, best bound 9.713684372866e+04, gap 0.0053%