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

Optimize a model with 33117 rows, 32547 columns and 130017 nonzeros
Presolve removed 1409 rows and 0 columns
Presolve time: 0.19s
Presolved: 31708 rows, 32547 columns, 127199 nonzeros
Variable types: 32490 continuous, 57 integer (57 binary)

Root relaxation: objective 5.758635e+04, 4993 iterations, 0.59 seconds

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

     0     0 57586.3538    0    6          - 57586.3538     -      -    0s
H    0     0                    58203.000000 57586.3538  1.06%     -    0s
H    0     0                    58195.000000 57586.3538  1.05%     -    0s
H    0     0                    57680.000000 57586.3538  0.16%     -    1s
     0     0 57586.6376    0    7 57680.0000 57586.6376  0.16%     -    1s
     0     0 57586.7481    0    8 57680.0000 57586.7481  0.16%     -    1s
     0     0 57586.7564    0    8 57680.0000 57586.7564  0.16%     -    1s
     0     0 57622.2914    0    4 57680.0000 57622.2914  0.10%     -    1s
     0     0 57622.2914    0    3 57680.0000 57622.2914  0.10%     -    2s
     0     0 57622.3407    0    5 57680.0000 57622.3407  0.10%     -    2s
     0     0 57622.3407    0    5 57680.0000 57622.3407  0.10%     -    2s
     0     0 57625.1932    0    4 57680.0000 57625.1932  0.10%     -    2s
H    0     0                    57637.000000 57625.1932  0.02%     -    2s
     0     0     cutoff    0      57637.0000 57637.0000   0.0%     -    2s

Cutting planes:
  Gomory: 1
  Flow cover: 2

Explored 1 nodes (6704 simplex iterations) in 2.82 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 5.763700000000e+04, best bound 5.763700000000e+04, gap 0.0%