Gurobi 5.0.1 (linux64) logging started Fri Jan 18 04:02:54 2013

Optimize a model with 2070 rows, 2260 columns and 8505 nonzeros
Presolve removed 15 rows and 10 columns
Presolve time: 0.11s
Presolved: 2055 rows, 2250 columns, 6490 nonzeros
Variable types: 1255 continuous, 995 integer (995 binary)

Root relaxation: objective 1.174557e+04, 797 iterations, 0.01 seconds

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

     0     0 11745.5748    0    1          - 11745.5748     -      -    0s
     0     0 11770.8641    0    2          - 11770.8641     -      -    0s
     0     0 11774.0514    0    2          - 11774.0514     -      -    0s
H    0     0                    11792.403919 11774.0514  0.16%     -    0s
     0     0 11774.0520    0    3 11792.4039 11774.0520  0.16%     -    0s
     0     0 11774.0520    0    1 11792.4039 11774.0520  0.16%     -    0s
     0     0 11774.0520    0    4 11792.4039 11774.0520  0.16%     -    0s
H    0     0                    11779.403919 11774.0520  0.05%     -    0s
     0     0 11779.3864    0    2 11779.4039 11779.3864  0.00%     -    0s

Cutting planes:
  Gomory: 1
  Flow cover: 4

Explored 0 nodes (976 simplex iterations) in 0.18 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.177940391857e+04, best bound 1.177938641318e+04, gap 0.0001%