Gurobi 5.0.1 (linux64) logging started Wed Dec 19 14:01:20 2012

Optimize a model with 482 rows, 441 columns and 2674 nonzeros
Presolve removed 142 rows and 215 columns
Presolve time: 0.01s
Presolved: 340 rows, 226 columns, 2676 nonzeros
Variable types: 20 continuous, 206 integer (206 binary)
Found heuristic solution: objective 318.0000000

Root relaxation: objective 2.428031e+02, 71 iterations, 0.00 seconds

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

     0     0  242.80314    0   17  318.00000  242.80314  23.6%     -    0s
H    0     0                     314.0000000  242.80314  22.7%     -    0s
     0     0  247.72217    0   24  314.00000  247.72217  21.1%     -    0s
     0     0  247.76522    0   21  314.00000  247.76522  21.1%     -    0s
     0     0  247.76818    0   27  314.00000  247.76818  21.1%     -    0s
     0     0  247.76818    0   27  314.00000  247.76818  21.1%     -    0s
     0     0  247.76818    0   27  314.00000  247.76818  21.1%     -    0s
     0     2  247.80000    0   26  314.00000  247.80000  21.1%     -    0s
*   46    20               9     287.0000000  256.00000  10.8%   8.0    0s
*   47    19              10     286.0000000  256.00000  10.5%   8.0    0s
*   49    18               9     285.0000000  256.00000  10.2%   7.9    0s
*   65    23               7     282.0000000  256.77778  8.94%   9.0    0s
*  143    17              10     281.0000000  263.41209  6.26%   7.7    0s
*  203    11               6     280.0000000  271.00000  3.21%   7.4    0s

Cutting planes:
  Learned: 5
  Gomory: 1
  Cover: 23
  Implied bound: 1
  MIR: 8
  GUB cover: 3

Explored 235 nodes (1776 simplex iterations) in 0.14 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.800000000000e+02, best bound 2.800000000000e+02, gap 0.0%