Gurobi 5.0.1 (linux64) logging started Fri Jan 18 00:15:44 2013

Optimize a model with 240 rows, 1320 columns and 2810 nonzeros
Presolve removed 20 rows and 30 columns
Presolve time: 0.00s
Presolved: 220 rows, 1290 columns, 2580 nonzeros
Variable types: 1200 continuous, 90 integer (90 binary)

Root relaxation: objective 2.162324e+04, 159 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 21648.3676    0    3          - 21648.3676     -      -    0s
     0     0 21648.4141    0    4          - 21648.4141     -      -    0s
     0     0 21648.4141    0    4          - 21648.4141     -      -    0s
H    0     0                    21770.062588 21648.4141  0.56%     -    0s
     0     2 21653.4358    0    4 21770.0626 21653.4358  0.54%     -    0s
*    5     5               4    21763.564963 21715.6536  0.22%   8.6    0s
*    8     4               6    21759.973325 21715.6536  0.20%   6.0    0s
*   12     4               5    21758.343794 21739.3461  0.09%   4.8    0s

Cutting planes:
  Gomory: 2
  Flow cover: 4

Explored 20 nodes (289 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%