Gurobi 5.0.1 (linux64) logging started Fri Jan 18 04:04:50 2013

Optimize a model with 300 rows, 3110 columns and 22280 nonzeros
Presolve removed 10 rows and 10 columns
Presolve time: 0.03s
Presolved: 290 rows, 3100 columns, 20270 nonzeros
Variable types: 3020 continuous, 80 integer (80 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    6          - 21623.2446     -      -    0s
     0     0 21623.8602    0    6          - 21623.8602     -      -    0s
     0     0 21650.2898    0    9          - 21650.2898     -      -    0s
     0     0 21650.2898    0    9          - 21650.2898     -      -    0s
H    0     0                    22103.665575 21650.2898  2.05%     -    0s
     0     2 21650.2898    0    9 22103.6656 21650.2898  2.05%     -    0s
*   14    10              14    21759.634783 21748.3789  0.05%   7.1    0s
*   38    14              16    21759.393350 21748.6544  0.05%   4.1    0s
H   55     8                    21759.226321 21752.3195  0.03%   3.3    0s
*   67    11              16    21759.206022 21752.3195  0.03%   3.1    0s

Cutting planes:
  Flow cover: 2

Explored 84 nodes (552 simplex iterations) in 0.27 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.175920602203e+04, best bound 2.175749085338e+04, gap 0.0079%