Gurobi 5.0.1 (linux64) logging started Sat Dec  8 02:35:17 2012

Optimize a model with 285 rows, 270 columns and 889 nonzeros
Presolve removed 22 rows and 13 columns
Presolve time: 0.00s
Presolved: 263 rows, 257 columns, 849 nonzeros
Variable types: 171 continuous, 86 integer (86 binary)

Root relaxation: objective 2.452920e+04, 135 iterations, 0.00 seconds

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

     0     0 24529.1981    0   34          - 24529.1981     -      -    0s
H    0     0                    36198.000000 24529.1981  32.2%     -    0s
     0     0 28817.6510    0   25 36198.0000 28817.6510  20.4%     -    0s
H    0     0                    34369.000000 28817.6510  16.2%     -    0s
     0     0 29252.3957    0   25 34369.0000 29252.3957  14.9%     -    0s
     0     0 29327.3148    0   16 34369.0000 29327.3148  14.7%     -    0s
     0     0 29332.9462    0   16 34369.0000 29332.9462  14.7%     -    0s
     0     2 29340.8660    0   16 34369.0000 29340.8660  14.6%     -    0s
H   27    27                    30626.000000 29344.3096  4.18%   4.2    0s
*   42    35              38    30583.000000 29344.3096  4.05%   3.7    0s
*  172   114              29    30469.000000 29428.1622  3.42%   4.4    0s
*  274   152              27    30328.000000 29486.4102  2.77%   4.3    0s
*  340   149              23    30241.000000 29521.4370  2.38%   4.3    0s
H  600   200                    30133.000000 29585.1911  1.82%   4.4    0s
H  643   201                    29975.000000 29689.0973  0.95%   5.3    0s

Cutting planes:
  Gomory: 28
  Cover: 2
  Implied bound: 3
  Clique: 1
  Flow cover: 80
  Flow path: 31

Explored 896 nodes (6126 simplex iterations) in 0.42 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.997500000000e+04, best bound 2.997500000000e+04, gap 0.0%