Gurobi 5.0.1 (linux64) logging started Tue Nov 20 05:48:45 2012

Optimize a model with 290 rows, 72 columns and 580 nonzeros
Presolve removed 114 rows and 3 columns
Presolve time: 0.00s
Presolved: 176 rows, 69 columns, 424 nonzeros
Variable types: 0 continuous, 69 integer (69 binary)
Found heuristic solution: objective 23.0000000

Root relaxation: objective 2.738462e+01, 118 iterations, 0.00 seconds

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

     0     0   27.38462    0   67   23.00000   27.38462  19.1%     -    0s
H    0     0                      24.0000000   27.38462  14.1%     -    0s
     0     0   26.31633    0   66   24.00000   26.31633  9.65%     -    0s
     0     0   26.10000    0   66   24.00000   26.10000  8.75%     -    0s
     0     0   26.08355    0   67   24.00000   26.08355  8.68%     -    0s
     0     0   26.00000    0   65   24.00000   26.00000  8.33%     -    0s
     0     0   25.98229    0   68   24.00000   25.98229  8.26%     -    0s
     0     0   25.85799    0   67   24.00000   25.85799  7.74%     -    0s
     0     0   25.84541    0   65   24.00000   25.84541  7.69%     -    0s
     0     0   25.76087    0   67   24.00000   25.76087  7.34%     -    0s
     0     0   25.75000    0   66   24.00000   25.75000  7.29%     -    0s
     0     0   25.68750    0   64   24.00000   25.68750  7.03%     -    0s
     0     0   25.67839    0   66   24.00000   25.67839  6.99%     -    0s
     0     0   25.67839    0   65   24.00000   25.67839  6.99%     -    0s
     0     2   25.67839    0   64   24.00000   25.67839  6.99%     -    0s

Cutting planes:
  Zero half: 32

Explored 21 nodes (690 simplex iterations) in 0.05 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.400000000000e+01, best bound 2.400000000000e+01, gap 0.0%