Gurobi 5.0.1 (linux64) logging started Fri Jan 18 07:41:17 2013

Optimize a model with 340 rows, 11130 columns and 122340 nonzeros
Presolve removed 10 rows and 10 columns
Presolve time: 0.22s
Presolved: 330 rows, 11120 columns, 112330 nonzeros
Variable types: 11020 continuous, 100 integer (100 binary)

Root relaxation: objective 1.937272e+04, 123 iterations, 0.01 seconds

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

     0     0 19372.7157    0    6          - 19372.7157     -      -    0s
     0     0 19372.8209    0    6          - 19372.8209     -      -    0s
     0     0 19438.2703    0    6          - 19438.2703     -      -    0s
     0     0 19444.5516    0    6          - 19444.5516     -      -    0s
     0     0 19444.5516    0    6          - 19444.5516     -      -    0s
     0     2 19444.5790    0    6          - 19444.5790     -      -    1s
*   28    17              24    19522.485338 19444.6180  0.40%   6.6    1s
H   30    13                    19518.969444 19444.6180  0.38%   6.2    1s
*   57    27              24    19517.199008 19502.9951  0.07%   5.0    1s
H   88    23                    19514.313190 19508.4934  0.03%   4.1    1s
*  111    27              16    19513.941035 19508.6259  0.03%   3.8    1s

Cutting planes:
  Flow cover: 1

Explored 140 nodes (849 simplex iterations) in 1.94 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.951394103452e+04, best bound 1.951217121461e+04, gap 0.0091%