Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:57:22 2013

Optimize a model with 14858 rows, 14478 columns and 57798 nonzeros
Presolve removed 1031 rows and 0 columns
Presolve time: 0.08s
Presolved: 13827 rows, 14478 columns, 55736 nonzeros
Variable types: 14440 continuous, 38 integer (38 binary)

Root relaxation: objective 3.471657e+04, 1630 iterations, 0.11 seconds

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

     0     0 34716.5727    0    4          - 34716.5727     -      -    0s
H    0     0                    35094.000000 34716.5727  1.08%     -    0s
H    0     0                    34903.000000 34716.5727  0.53%     -    0s
H    0     0                    34741.000000 34716.5727  0.07%     -    0s
     0     0 34721.0578    0    4 34741.0000 34721.0578  0.06%     -    0s
     0     0 34721.0578    0    4 34741.0000 34721.0578  0.06%     -    0s
     0     0 34721.5700    0    4 34741.0000 34721.5700  0.06%     -    0s
     0     0 34721.6018    0    4 34741.0000 34721.6018  0.06%     -    0s

Cutting planes:
  Gomory: 1
  Flow cover: 5

Explored 0 nodes (2302 simplex iterations) in 0.62 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.474100000000e+04, best bound 3.474100000000e+04, gap 0.0%