Gurobi 5.0.1 (linux64) logging started Fri Jan 18 01:40:22 2013

Optimize a model with 52 rows, 158 columns and 924 nonzeros
Presolve removed 22 rows and 24 columns
Presolve time: 0.00s
Presolved: 30 rows, 134 columns, 778 nonzeros
Variable types: 122 continuous, 12 integer (12 binary)

Root relaxation: objective 5.784077e+03, 13 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    3          - 5784.07688     -      -    0s
     0     0 5791.05056    0    3          - 5791.05056     -      -    0s
     0     0 5805.69230    0    6          - 5805.69230     -      -    0s
     0     0 5812.01040    0    3          - 5812.01040     -      -    0s
     0     0 5812.01040    0    3          - 5812.01040     -      -    0s
H    0     0                    5812.3255371 5812.01040  0.01%     -    0s

Cutting planes:
  Flow cover: 2

Explored 0 nodes (49 simplex iterations) in 0.01 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 5.812325537147e+03, best bound 5.812010399017e+03, gap 0.0054%