Gurobi 5.0.1 (linux64) logging started Fri Jan 18 05:28:19 2013

Optimize a model with 160 rows, 2810 columns and 28155 nonzeros
Presolve removed 5 rows and 5 columns
Presolve time: 0.05s
Presolved: 155 rows, 2805 columns, 25650 nonzeros
Variable types: 2760 continuous, 45 integer (45 binary)

Root relaxation: objective 1.174557e+04, 46 iterations, 0.00 seconds

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

     0     0 11745.5748    0    3          - 11745.5748     -      -    0s
     0     0 11745.6385    0    3          - 11745.6385     -      -    0s
     0     0 11771.4400    0    6          - 11771.4400     -      -    0s
     0     0 11777.8325    0    3          - 11777.8325     -      -    0s
     0     0 11779.1576    0    3          - 11779.1576     -      -    0s
     0     0 11779.1576    0    3          - 11779.1576     -      -    0s
     0     0 11779.1576    0    3          - 11779.1576     -      -    0s
     0     0 11779.1617    0    3          - 11779.1617     -      -    0s
     0     0 11779.1669    0    5          - 11779.1669     -      -    0s
     0     0 11779.1669    0    5          - 11779.1669     -      -    0s
H    0     0                    11779.404659 11779.1669  0.00%     -    0s

Cutting planes:
  Flow cover: 3

Explored 0 nodes (302 simplex iterations) in 0.65 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.177940465921e+04, best bound 1.177916692408e+04, gap 0.0020%