Gurobi 5.0.1 (linux64) logging started Sat Dec  8 02:35:13 2012

Optimize a model with 285 rows, 270 columns and 891 nonzeros
Presolve removed 18 rows and 11 columns
Presolve time: 0.00s
Presolved: 267 rows, 259 columns, 847 nonzeros
Variable types: 173 continuous, 86 integer (86 binary)

Root relaxation: objective 2.563499e+04, 123 iterations, 0.00 seconds

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

     0     0 25634.9940    0   32          - 25634.9940     -      -    0s
H    0     0                    37379.000000 25634.9940  31.4%     -    0s
     0     0 29015.9241    0   10 37379.0000 29015.9241  22.4%     -    0s
H    0     0                    31241.000000 29015.9241  7.12%     -    0s
     0     0 29238.5721    0   16 31241.0000 29238.5721  6.41%     -    0s
     0     0 29257.8015    0   11 31241.0000 29257.8015  6.35%     -    0s
     0     0 29269.6474    0    9 31241.0000 29269.6474  6.31%     -    0s
     0     0 29269.8131    0    8 31241.0000 29269.8131  6.31%     -    0s
     0     2 29271.2754    0    8 31241.0000 29271.2754  6.30%     -    0s
H   20    20                    30275.000000 29287.7941  3.26%   4.8    0s
*   21    18              20    29799.000000 29287.7941  1.72%   4.9    0s
H   54    21                    29685.000000 29358.1287  1.10%   4.4    0s
*   64    24              16    29631.000000 29358.1287  0.92%   4.6    0s
*   79    27              12    29617.000000 29363.2574  0.86%   4.5    0s
*  162    30              10    29607.000000 29480.4792  0.43%   4.7    0s

Cutting planes:
  Gomory: 7
  Cover: 1
  Flow cover: 23
  Flow path: 22

Explored 208 nodes (1129 simplex iterations) in 1.16 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.960700000000e+04, best bound 2.960482205361e+04, gap 0.0074%