Gurobi 5.0.1 (linux64) logging started Fri Jan 18 00:15:43 2013

Optimize a model with 340 rows, 1220 columns and 2810 nonzeros
Presolve removed 40 rows and 30 columns
Presolve time: 0.01s
Presolved: 300 rows, 1190 columns, 2650 nonzeros
Variable types: 1100 continuous, 90 integer (90 binary)

Root relaxation: objective 2.162324e+04, 171 iterations, 0.00 seconds

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

     0     0 21623.2446    0    2          - 21623.2446     -      -    0s
     0     0 21658.3879    0    3          - 21658.3879     -      -    0s
     0     0 21696.3850    0    4          - 21696.3850     -      -    0s
H    0     0                    21770.062588 21696.3850  0.34%     -    0s
     0     2 21708.3109    0    4 21770.0626 21708.3109  0.28%     -    0s
*    4     3               4    21758.343794 21725.7326  0.15%   7.0    0s

Cutting planes:
  Gomory: 5

Explored 13 nodes (286 simplex iterations) in 0.05 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.175834379400e+04, best bound 2.175775663418e+04, gap 0.0027%