Gurobi 5.0.1 (linux64) logging started Fri Jan 18 04:02:43 2013

Optimize a model with 60 rows, 1084 columns and 8914 nonzeros
Presolve removed 22 rows and 251 columns
Presolve time: 0.03s
Presolved: 38 rows, 833 columns, 8064 nonzeros
Variable types: 817 continuous, 16 integer (16 binary)

Root relaxation: objective 5.281733e+03, 16 iterations, 0.00 seconds

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

     0     0 5281.73269    0    5          - 5281.73269     -      -    0s
H    0     0                    5298.8628699 5281.73269  0.32%     -    0s
     0     0 5283.65657    0    5 5298.86287 5283.65657  0.29%     -    0s
     0     0 5283.65657    0    5 5298.86287 5283.65657  0.29%     -    0s
     0     0 5283.65657    0    5 5298.86287 5283.65657  0.29%     -    0s
     0     0 5294.84576    0    4 5298.86287 5294.84576  0.08%     -    0s
     0     0 5294.84576    0    4 5298.86287 5294.84576  0.08%     -    0s
     0     2 5294.84576    0    4 5298.86287 5294.84576  0.08%     -    0s
*    6     3               5    5296.3125573 5294.84576  0.03%   5.0    0s

Cutting planes:
  Flow cover: 1

Explored 9 nodes (139 simplex iterations) in 0.10 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 5.296312557325e+03, best bound 5.296312557325e+03, gap 0.0%