Gurobi 5.0.1 (linux64) logging started Fri Jan 18 05:26:32 2013

Optimize a model with 64 rows, 2110 columns and 24118 nonzeros
Presolve removed 22 rows and 72 columns
Presolve time: 0.09s
Presolved: 42 rows, 2038 columns, 22074 nonzeros
Variable types: 2020 continuous, 18 integer (18 binary)

Root relaxation: objective 5.784077e+03, 21 iterations, 0.00 seconds

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

     0     0 5784.07688    0    7          - 5784.07688     -      -    0s
     0     0 5786.39776    0    7          - 5786.39776     -      -    0s
     0     0 5799.30550    0    6          - 5799.30550     -      -    0s
     0     0 5799.30550    0    6          - 5799.30550     -      -    0s
H    0     0                    5819.9133554 5799.30550  0.35%     -    0s
     0     0 5812.13500    0    4 5819.91336 5812.13500  0.13%     -    0s
     0     0 5812.14301    0    4 5819.91336 5812.14301  0.13%     -    0s
     0     0 5812.15182    0    4 5819.91336 5812.15182  0.13%     -    0s
     0     0 5812.15516    0    6 5819.91336 5812.15516  0.13%     -    0s
     0     0 5812.15769    0    6 5819.91336 5812.15769  0.13%     -    0s
     0     0 5812.15769    0    6 5819.91336 5812.15769  0.13%     -    0s
H    0     0                    5812.3255371 5812.15769  0.00%     -    0s

Cutting planes:
  Cover: 2
  Flow cover: 6

Explored 0 nodes (173 simplex iterations) in 0.22 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 5.812325537147e+03, best bound 5.812157690354e+03, gap 0.0029%