Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:57:20 2013

Optimize a model with 14858 rows, 14478 columns and 57798 nonzeros
Presolve removed 1512 rows and 0 columns
Presolve time: 0.08s
Presolved: 13346 rows, 14478 columns, 54774 nonzeros
Variable types: 14440 continuous, 38 integer (38 binary)

Root relaxation: objective 3.882383e+04, 1963 iterations, 0.12 seconds

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

     0     0 38823.8333    0    1          - 38823.8333     -      -    0s
H    0     0                    38988.000000 38823.8333  0.42%     -    0s
H    0     0                    38834.000000 38823.8333  0.03%     -    0s
     0     0 38832.1667    0    1 38834.0000 38832.1667  0.00%     -    0s

Cutting planes:
  Flow cover: 1

Explored 0 nodes (1976 simplex iterations) in 0.34 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.883400000000e+04, best bound 3.883216666667e+04, gap 0.0047%