Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:17:47 2013

Optimize a model with 29754 rows, 29214 columns and 116694 nonzeros
Presolve removed 2371 rows and 0 columns
Presolve time: 0.17s
Presolved: 27383 rows, 29214 columns, 111952 nonzeros
Variable types: 29160 continuous, 54 integer (54 binary)

Root relaxation: objective 5.966518e+04, 5668 iterations, 0.59 seconds

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

     0     0 59665.1775    0    3          - 59665.1775     -      -    0s
H    0     0                    60158.000000 59665.1775  0.82%     -    0s
     0     0 59670.6599    0    5 60158.0000 59670.6599  0.81%     -    1s
     0     0 59670.6761    0    5 60158.0000 59670.6761  0.81%     -    1s
H    0     0                    59953.000000 59670.6761  0.47%     -    1s
     0     0 59670.6761    0    3 59953.0000 59670.6761  0.47%     -    2s
     0     0 59670.8741    0    5 59953.0000 59670.8741  0.47%     -    2s
     0     0 59670.9605    0    5 59953.0000 59670.9605  0.47%     -    2s
     0     2 59671.1070    0    5 59953.0000 59671.1070  0.47%     -    3s
*    5     4               5    59916.000000 59864.8495  0.09%  44.2    3s

Cutting planes:
  Gomory: 2
  Flow cover: 4

Explored 12 nodes (8513 simplex iterations) in 3.99 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 5.991600000000e+04, best bound 5.991600000000e+04, gap 0.0%