Gurobi 5.0.1 (linux64) logging started Fri Jan 18 05:28:32 2013

Optimize a model with 10140 rows, 11020 columns and 42010 nonzeros
Presolve removed 30 rows and 20 columns
Presolve time: 0.25s
Presolved: 10110 rows, 11000 columns, 31980 nonzeros
Variable types: 6010 continuous, 4990 integer (4990 binary)

Root relaxation: objective 2.199252e+04, 3529 iterations, 0.12 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 22059.8181    0    2          - 22059.8181     -      -    0s
     0     0 22071.4072    0    4          - 22071.4072     -      -    0s
H    0     0                    22135.056620 22071.4072  0.29%     -    1s
H    0     0                    22134.958679 22071.4072  0.29%     -    1s
     0     0 22071.4072    0    2 22134.9587 22071.4072  0.29%     -    1s
     0     0 22071.4072    0    2 22134.9587 22071.4072  0.29%     -    1s
     0     0 22071.8854    0    4 22134.9587 22071.8854  0.28%     -    1s
     0     2 22071.8951    0    4 22134.9587 22071.8951  0.28%     -    1s
  1548   404 22134.8081   99    1 22134.9587 22107.6082  0.12%  10.8    5s

Cutting planes:
  Gomory: 2
  Flow cover: 9

Explored 5233 nodes (39481 simplex iterations) in 8.30 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.213495867877e+04, best bound 2.213276460487e+04, gap 0.0099%