Gurobi 5.0.1 (linux64) logging started Fri Jan 18 05:26:27 2013

Optimize a model with 1028 rows, 3044 columns and 8082 nonzeros
Presolve removed 944 rows and 2788 columns
Presolve time: 0.09s
Presolved: 84 rows, 256 columns, 512 nonzeros
Variable types: 178 continuous, 78 integer (78 binary)

Root relaxation: objective 5.784077e+03, 5 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    1          - 5784.07688     -      -    0s
     0     0 5806.15526    0    3          - 5806.15526     -      -    0s
     0     0 5812.26283    0    2          - 5812.26283     -      -    0s
     0     0 5812.27846    0    2          - 5812.27846     -      -    0s
     0     0 5812.29418    0    2          - 5812.29418     -      -    0s
     0     0 5812.30988    0    2          - 5812.30988     -      -    0s
H    0     0                    5812.3255371 5812.30988  0.00%     -    0s

Cutting planes:
  Cover: 2
  Implied bound: 1
  Flow cover: 2

Explored 0 nodes (92 simplex iterations) in 0.10 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 5.812325537150e+03, best bound 5.812309877206e+03, gap 0.0003%