Gurobi 5.0.1 (linux64) logging started Fri Jan 18 02:46:26 2013

Optimize a model with 570 rows, 1760 columns and 4505 nonzeros
Presolve removed 10 rows and 15 columns
Presolve time: 0.10s
Presolved: 560 rows, 1745 columns, 3490 nonzeros
Variable types: 1250 continuous, 495 integer (495 binary)

Root relaxation: objective 1.704455e+04, 72 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    1          - 17044.5499     -      -    0s
     0     0 17045.4175    0    2          - 17045.4175     -      -    0s
     0     0 17045.4175    0    2          - 17045.4175     -      -    0s
     0     2 17045.8780    0    2          - 17045.8780     -      -    0s
*   62    15              62    17131.385300 17091.4455  0.23%   1.8    0s
*   64     0              12    17091.445489 17091.4455   0.0%   1.8    0s

Cutting planes:
  Gomory: 1
  Flow cover: 1

Explored 65 nodes (293 simplex iterations) in 0.25 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.709144548910e+04, best bound 1.709144548910e+04, gap 0.0%