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

Optimize a model with 825 rows, 810 columns and 2933 nonzeros
Presolve removed 97 rows and 47 columns
Presolve time: 0.00s
Presolved: 728 rows, 763 columns, 2715 nonzeros
Variable types: 676 continuous, 87 integer (87 binary)

Root relaxation: objective 2.858582e+04, 122 iterations, 0.00 seconds

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

     0     0 28585.8227    0    6          - 28585.8227     -      -    0s
H    0     0                    30231.000000 28585.8227  5.44%     -    0s
     0     0 28617.8706    0   14 30231.0000 28617.8706  5.34%     -    0s
     0     0 28629.6059    0   12 30231.0000 28629.6059  5.30%     -    0s
     0     0 28629.7126    0   12 30231.0000 28629.7126  5.30%     -    0s
     0     2 28649.7772    0   12 30231.0000 28649.7772  5.23%     -    0s
H    4     4                    28762.000000 28696.0206  0.23%   7.2    0s
*    5     3               4    28698.000000 28698.0000   0.0%   6.4    0s

Cutting planes:
  Gomory: 2
  Flow cover: 3

Explored 6 nodes (170 simplex iterations) in 0.03 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.869800000000e+04, best bound 2.869800000000e+04, gap 0.0%