Gurobi 5.0.1 (linux64) logging started Fri Jan 18 07:10:08 2013

Optimize a model with 5070 rows, 15260 columns and 40505 nonzeros
Presolve removed 10 rows and 15 columns
Presolve time: 0.28s
Presolved: 5060 rows, 15245 columns, 30490 nonzeros
Variable types: 10250 continuous, 4995 integer (4995 binary)

Root relaxation: objective 1.704455e+04, 73 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 17044.6077    0    2          - 17044.6077     -      -    0s
     0     0 17044.6379    0    2          - 17044.6379     -      -    0s
     0     0 17044.6379    0    2          - 17044.6379     -      -    0s
H    0     0                    17176.649486 17044.6379  0.77%     -    0s
H    0     0                    17092.019969 17044.6379  0.28%     -    1s
     0     1 17051.2681    0    2 17092.0200 17051.2681  0.24%     -    1s

Cutting planes:
  Gomory: 1
  Flow cover: 1

Explored 125 nodes (1218 simplex iterations) in 2.16 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.709201996932e+04, best bound 1.709052446756e+04, gap 0.0087%