Gurobi 5.0.1 (linux64) logging started Thu Jan 17 23:16:16 2013

Optimize a model with 160 rows, 1080 columns and 2170 nonzeros
Presolve removed 20 rows and 30 columns
Presolve time: 0.00s
Presolved: 140 rows, 1050 columns, 2100 nonzeros
Variable types: 1040 continuous, 10 integer (10 binary)

Root relaxation: objective 1.997658e+04, 111 iterations, 0.00 seconds

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

     0     0 19976.5790    0    2          - 19976.5790     -      -    0s
     0     0 20060.2402    0    2          - 20060.2402     -      -    0s
     0     0 20123.2851    0    2          - 20123.2851     -      -    0s
     0     0 20124.9366    0    2          - 20124.9366     -      -    0s
     0     0 20137.6221    0    1          - 20137.6221     -      -    0s
     0     0 20137.6221    0    1          - 20137.6221     -      -    0s
H    0     0                    20148.623128 20137.6221  0.05%     -    0s
     0     0     cutoff    0      20148.6231 20148.6231   0.0%     -    0s

Cutting planes:
  Gomory: 2
  Flow cover: 2

Explored 1 nodes (168 simplex iterations) in 0.02 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.014862312802e+04, best bound 2.014862312802e+04, gap 0.0%