Gurobi 5.0.1 (linux64) logging started Fri Jan 18 02:47:08 2013

Optimize a model with 1160 rows, 3030 columns and 9050 nonzeros
Presolve removed 10 rows and 10 columns
Presolve time: 0.12s
Presolved: 1150 rows, 3020 columns, 8040 nonzeros
Variable types: 2020 continuous, 1000 integer (1000 binary)

Root relaxation: objective 2.337984e+04, 163 iterations, 0.00 seconds

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

     0     0 23379.8401    0    2          - 23379.8401     -      -    0s
     0     0 23409.5876    0    2          - 23409.5876     -      -    0s
     0     0 23412.6056    0    2          - 23412.6056     -      -    0s
     0     0 23419.9439    0    2          - 23419.9439     -      -    0s
     0     0 23424.4283    0    3          - 23424.4283     -      -    0s
     0     0 23425.8342    0    3          - 23425.8342     -      -    0s
     0     0 23426.1099    0    5          - 23426.1099     -      -    0s
     0     0 23427.2507    0    2          - 23427.2507     -      -    0s
     0     0 23427.3871    0    5          - 23427.3871     -      -    0s
     0     0 23431.7321    0    4          - 23431.7321     -      -    0s
     0     0 23432.1926    0    6          - 23432.1926     -      -    0s
     0     0 23432.4889    0    6          - 23432.4889     -      -    0s
     0     0 23432.4958    0    6          - 23432.4958     -      -    0s
     0     0 23432.4958    0    6          - 23432.4958     -      -    0s
     0     2 23432.4958    0    6          - 23432.4958     -      -    0s
*   20     6              10    23527.305205 23527.3052   0.0%  13.0    0s

Cutting planes:
  Gomory: 2
  Implied bound: 13
  Flow cover: 2

Explored 21 nodes (589 simplex iterations) in 0.51 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.352730520463e+04, best bound 2.352730520463e+04, gap 0.0%