Gurobi 5.0.1 (linux64) logging started Fri Jan 18 01:40:42 2013

Optimize a model with 260 rows, 2360 columns and 11130 nonzeros
Presolve removed 10 rows and 290 columns
Presolve time: 0.01s
Presolved: 250 rows, 2070 columns, 10130 nonzeros
Variable types: 2010 continuous, 60 integer (60 binary)

Root relaxation: objective 1.791602e+04, 139 iterations, 0.00 seconds

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

     0     0 17916.0191    0    9          - 17916.0191     -      -    0s
     0     0 17918.4063    0   18          - 17918.4063     -      -    0s
     0     0 17918.9788    0   18          - 17918.9788     -      -    0s
     0     0 17919.0631    0   18          - 17919.0631     -      -    0s
     0     0 17919.0631    0   18          - 17919.0631     -      -    0s
H    0     0                    18006.282453 17919.0631  0.48%     -    0s
     0     2 17962.3220    0    9 18006.2825 17962.3220  0.24%     -    0s
*    6     5               6    17984.425761 17970.1159  0.08%  13.8    0s
*   17     6               9    17984.200283 17970.1159  0.08%   6.1    0s

Cutting planes:
  Gomory: 3
  Flow cover: 6

Explored 22 nodes (372 simplex iterations) in 0.11 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.798420028333e+04, best bound 1.798246584870e+04, gap 0.0096%