Gurobi 5.0.1 (linux64) logging started Fri Jan 18 02:46:47 2013

Optimize a model with 1140 rows, 4020 columns and 10010 nonzeros
Presolve removed 20 rows and 30 columns
Presolve time: 0.10s
Presolved: 1120 rows, 3990 columns, 7980 nonzeros
Variable types: 3000 continuous, 990 integer (990 binary)

Root relaxation: objective 2.199252e+04, 127 iterations, 0.00 seconds

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

     0     0 21992.5209    0    2          - 21992.5209     -      -    0s
     0     0 21995.3607    0    2          - 21995.3607     -      -    0s
     0     0 21995.4820    0    4          - 21995.4820     -      -    0s
     0     0 21995.4909    0    4          - 21995.4909     -      -    0s
     0     0 21995.4909    0    4          - 21995.4909     -      -    0s
H    0     0                    23559.711494 21995.4909  6.64%     -    0s
     0     2 21997.9093    0    4 23559.7115 21997.9093  6.63%     -    0s
H   27    25                    22198.666016 22065.7646  0.60%   2.9    0s
*   30    27              25    22192.828835 22065.7646  0.57%   3.0    0s
*   32    25              25    22191.326638 22065.7646  0.57%   2.9    0s
*  223    61              20    22134.953373 22074.6803  0.27%   2.9    0s

Cutting planes:
  Gomory: 2
  Flow cover: 5

Explored 340 nodes (1485 simplex iterations) in 0.62 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.213495337267e+04, best bound 2.213337600379e+04, gap 0.0071%