Gurobi 5.0.1 (linux64) logging started Fri Jan 18 01:41:56 2013

Optimize a model with 520 rows, 5180 columns and 16440 nonzeros
Presolve removed 20 rows and 20 columns
Presolve time: 0.02s
Presolved: 500 rows, 5160 columns, 15420 nonzeros
Variable types: 5040 continuous, 120 integer (120 binary)

Root relaxation: objective 4.636776e+04, 532 iterations, 0.01 seconds

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

     0     0 46367.7551    0    6          - 46367.7551     -      -    0s
     0     0 46373.1667    0    6          - 46373.1667     -      -    0s
     0     0 46373.1667    0    6          - 46373.1667     -      -    0s
H    0     0                    50432.353459 46373.1667  8.05%     -    0s
     0     2 46373.1667    0    6 50432.3535 46373.1667  8.05%     -    0s
*   10     5               8    46653.826105 46640.9687  0.03%  23.4    0s

Cutting planes:
  Flow cover: 2

Explored 14 nodes (986 simplex iterations) in 0.27 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.665382610478e+04, best bound 4.665382610478e+04, gap 0.0%