Gurobi 5.0.1 (linux64) logging started Sat Dec  8 02:35:16 2012

Optimize a model with 825 rows, 810 columns and 2958 nonzeros
Presolve removed 112 rows and 27 columns
Presolve time: 0.00s
Presolved: 713 rows, 783 columns, 2716 nonzeros
Variable types: 699 continuous, 84 integer (84 binary)

Root relaxation: objective 2.916898e+04, 130 iterations, 0.00 seconds

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

     0     0 29168.9838    0    5          - 29168.9838     -      -    0s
H    0     0                    31026.000000 29168.9838  5.99%     -    0s
     0     0 29475.5631    0    9 31026.0000 29475.5631  5.00%     -    0s
H    0     0                    29616.000000 29475.5631  0.47%     -    0s
     0     0 29487.1862    0    5 29616.0000 29487.1862  0.43%     -    0s
     0     0 29487.1862    0    5 29616.0000 29487.1862  0.43%     -    0s
     0     0 29487.1862    0    5 29616.0000 29487.1862  0.43%     -    0s
     0     0 29488.7854    0   10 29616.0000 29488.7854  0.43%     -    0s
     0     0 29488.8572    0    6 29616.0000 29488.8572  0.43%     -    0s
     0     0 29506.6292    0    3 29616.0000 29506.6292  0.37%     -    0s
     0     0 29510.0000    0    1 29616.0000 29510.0000  0.36%     -    0s
     0     0 29510.0000    0    1 29616.0000 29510.0000  0.36%     -    0s
     0     2 29513.5000    0    1 29616.0000 29513.5000  0.35%     -    0s
*    6     1               4    29546.000000 29546.0000   0.0%   3.3    0s

Cutting planes:
  Cover: 1
  Flow cover: 4

Explored 7 nodes (296 simplex iterations) in 0.04 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.954600000000e+04, best bound 2.954600000000e+04, gap 0.0%