Gurobi 5.0.1 (linux64) logging started Fri Jan 18 02:46:59 2013

Optimize a model with 280 rows, 3650 columns and 22150 nonzeros
Presolve removed 10 rows and 570 columns
Presolve time: 0.03s
Presolved: 270 rows, 3080 columns, 20150 nonzeros
Variable types: 3010 continuous, 70 integer (70 binary)

Root relaxation: objective 2.387367e+04, 246 iterations, 0.00 seconds

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

     0     0 23873.6700    0    4          - 23873.6700     -      -    0s
     0     0 23874.3747    0    4          - 23874.3747     -      -    0s
     0     0 23944.1706    0    3          - 23944.1706     -      -    0s
     0     0 23944.1706    0    3          - 23944.1706     -      -    0s
H    0     0                    24517.351207 23944.1706  2.34%     -    0s
     0     2 23944.1706    0    3 24517.3512 23944.1706  2.34%     -    0s
*   12     9              10    24048.120590 23944.1706  0.43%  10.1    0s
*   22     8              13    24039.419585 23944.1706  0.40%   6.1    0s
*   40    10              12    23968.342048 23949.7495  0.08%   4.8    0s
*   44     6              15    23968.270824 23949.7495  0.08%   4.5    0s
*   47     3               6    23950.724408 23950.2251  0.00%   4.3    0s

Cutting planes:
  Flow cover: 1

Explored 48 nodes (669 simplex iterations) in 0.33 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.395072440836e+04, best bound 2.395022513466e+04, gap 0.0021%