Gurobi 5.0.1 (linux64) logging started Fri Jan 18 05:26:23 2013

Optimize a model with 2028 rows, 2044 columns and 8082 nonzeros
Presolve removed 1934 rows and 1937 columns
Presolve time: 0.13s
Presolved: 94 rows, 107 columns, 302 nonzeros
Variable types: 63 continuous, 44 integer (44 binary)

Root relaxation: objective 5.281733e+03, 47 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    1          - 5281.73269     -      -    0s
H    0     0                    5296.3129667 5281.73269  0.28%     -    0s
     0     0     cutoff    0      5296.31297 5296.31297   0.0%     -    0s

Cutting planes:
  Implied bound: 1
  Flow cover: 2

Explored 0 nodes (69 simplex iterations) in 0.14 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 5.296312966652e+03, best bound 5.296312966652e+03, gap 0.0%