Gurobi 5.0.1 (linux64) logging started Fri Jan 18 05:27:40 2013

Optimize a model with 160 rows, 5425 columns and 60595 nonzeros
Presolve removed 5 rows and 125 columns
Presolve time: 0.15s
Presolved: 155 rows, 5300 columns, 55595 nonzeros
Variable types: 5255 continuous, 45 integer (45 binary)

Root relaxation: objective 1.704455e+04, 102 iterations, 0.00 seconds

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

     0     0 17044.5499    0    7          - 17044.5499     -      -    0s
     0     0 17044.6291    0    7          - 17044.6291     -      -    0s
     0     0 17089.9314    0    5          - 17089.9314     -      -    0s
     0     0 17089.9314    0    5          - 17089.9314     -      -    0s
H    0     0                    17259.800844 17089.9314  0.98%     -    0s
H    0     0                    17104.397337 17089.9314  0.08%     -    0s
     0     0 17089.9314    0    5 17104.3973 17089.9314  0.08%     -    0s
     0     0 17089.9357    0    5 17104.3973 17089.9357  0.08%     -    0s
     0     2 17091.1287    0    5 17104.3973 17091.1287  0.08%     -    0s
*   19     8              18    17100.375829 17091.4293  0.05%  13.7    1s
*   28     6              18    17091.445829 17091.4316  0.00%   9.8    1s

Cutting planes:
  Gomory: 5
  Flow cover: 3

Explored 29 nodes (667 simplex iterations) in 1.07 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.709144582885e+04, best bound 1.709143157787e+04, gap 0.0001%