Gurobi 5.0.1 (linux64) logging started Fri Jan 18 00:15:45 2013

Optimize a model with 220 rows, 1380 columns and 3490 nonzeros
Presolve removed 10 rows and 130 columns
Presolve time: 0.00s
Presolved: 210 rows, 1250 columns, 3290 nonzeros
Variable types: 1210 continuous, 40 integer (40 binary)

Root relaxation: objective 2.162324e+04, 147 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    4          - 21623.2446     -      -    0s
     0     0 21639.8531    0    8          - 21639.8531     -      -    0s
     0     0 21643.7075    0    8          - 21643.7075     -      -    0s
     0     0 21643.7075    0    8          - 21643.7075     -      -    0s
H    0     0                    21770.062588 21643.7075  0.58%     -    0s
     0     2 21702.2148    0    6 21770.0626 21702.2148  0.31%     -    0s
*    6     3               4    21763.564963 21749.7917  0.06%  13.8    0s
*    8     2               5    21759.973325 21749.7917  0.05%  11.4    0s
*   15     2               5    21758.343794 21750.5159  0.04%   7.1    0s

Cutting planes:
  Gomory: 2
  Flow cover: 3

Explored 19 nodes (341 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 2.175834379400e+04, gap 0.0%