Gurobi 5.0.1 (linux64) logging started Fri Jan 18 00:55:22 2013

Optimize a model with 240 rows, 1710 columns and 5310 nonzeros
Presolve removed 10 rows and 250 columns
Presolve time: 0.01s
Presolved: 230 rows, 1460 columns, 4910 nonzeros
Variable types: 1410 continuous, 50 integer (50 binary)

Root relaxation: objective 2.162324e+04, 150 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    6          - 21623.2446     -      -    0s
     0     0 21632.7916    0   10          - 21632.7916     -      -    0s
     0     0 21633.8292    0   10          - 21633.8292     -      -    0s
     0     0 21633.8292    0   10          - 21633.8292     -      -    0s
H    0     0                    21950.886421 21633.8292  1.44%     -    0s
     0     2 21700.7917    0    9 21950.8864 21700.7917  1.14%     -    0s
*    8     8               6    21774.687228 21749.7917  0.11%  11.4    0s
*    9     5               6    21763.713391 21749.7917  0.06%  10.2    0s
*   12     4               6    21760.283710 21749.7917  0.05%   8.6    0s
*   24     5               7    21759.084574 21750.5159  0.04%   5.5    0s

Cutting planes:
  Gomory: 2
  Flow cover: 3

Explored 42 nodes (463 simplex iterations) in 0.06 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.175908457433e+04, best bound 2.175908457433e+04, gap 0.0%