Gurobi 5.0.1 (linux64) logging started Wed Apr 24 02:31:58 2013

Optimize a model with 52632 rows, 51912 columns and 207432 nonzeros
Presolve removed 2987 rows and 0 columns
Presolve time: 0.33s
Presolved: 49645 rows, 51912 columns, 201458 nonzeros
Variable types: 51840 continuous, 72 integer (72 binary)

Root relaxation: objective 9.762852e+04, 13457 iterations, 2.53 seconds

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

     0     0 97628.5216    0    5          - 97628.5216     -      -    3s
H    0     0                    99219.000000 97628.5216  1.60%     -    3s
H    0     0                    98838.000000 97628.5216  1.22%     -    3s
     0     0 97628.7264    0    6 98838.0000 97628.7264  1.22%     -    3s
H    0     0                    98832.000000 97628.7264  1.22%     -    3s
     0     0 97628.7264    0    6 98832.0000 97628.7264  1.22%     -    4s
H    0     0                    98600.000000 97628.7264  0.99%     -    5s
     0     2 97645.4610    0    6 98600.0000 97645.4610  0.97%     -    6s
H    4     3                    97949.111111 97699.4687  0.25%   139    7s
*   22     5               5    97782.000000 97730.5581  0.05%  96.6    8s

Cutting planes:
  Gomory: 1
  Flow cover: 2

Explored 29 nodes (15925 simplex iterations) in 8.63 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 9.778200000000e+04, best bound 9.777628571429e+04, gap 0.0058%