Gurobi 5.0.1 (linux64) logging started Fri Jan 18 05:26:42 2013

Optimize a model with 64 rows, 1064 columns and 11142 nonzeros
Presolve removed 22 rows and 27 columns
Presolve time: 0.03s
Presolved: 42 rows, 1037 columns, 10090 nonzeros
Variable types: 1019 continuous, 18 integer (18 binary)

Root relaxation: objective 5.281733e+03, 12 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    3          - 5281.73269     -      -    0s
     0     0 5282.96589    0    3          - 5282.96589     -      -    0s
     0     0 5294.03655    0    3          - 5294.03655     -      -    0s
     0     0 5294.03655    0    3          - 5294.03655     -      -    0s
H    0     0                    5297.3973712 5294.03655  0.06%     -    0s
     0     0 5295.50530    0    3 5297.39737 5295.50530  0.04%     -    0s
     0     0 5295.51975    0    3 5297.39737 5295.51975  0.04%     -    0s
     0     1 5296.07420    0    3 5297.39737 5296.07420  0.02%     -    0s
H    9     7                    5296.3129667 5296.31269  0.00%   0.2    0s

Cutting planes:
  Flow cover: 1

Explored 9 nodes (116 simplex iterations) in 0.16 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 5.296312966652e+03, best bound 5.296312686205e+03, gap 0.0000%