Gurobi 5.0.1 (linux64) logging started Tue Nov 20 05:48:44 2012

Optimize a model with 236 rows, 70 columns and 472 nonzeros
Presolve removed 75 rows and 3 columns
Presolve time: 0.00s
Presolved: 161 rows, 67 columns, 356 nonzeros
Variable types: 0 continuous, 67 integer (67 binary)
Found heuristic solution: objective 22.0000000

Root relaxation: objective 2.900000e+01, 93 iterations, 0.00 seconds

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

     0     0   29.00000    0   44   22.00000   29.00000  31.8%     -    0s
H    0     0                      24.0000000   29.00000  20.8%     -    0s
H    0     0                      25.0000000   29.00000  16.0%     -    0s
     0     0   28.60000    0   62   25.00000   28.60000  14.4%     -    0s
H    0     0                      26.0000000   28.60000  10.0%     -    0s
     0     0   28.29268    0   63   26.00000   28.29268  8.82%     -    0s
     0     0   28.00000    0   61   26.00000   28.00000  7.69%     -    0s
     0     0   27.73684    0   64   26.00000   27.73684  6.68%     -    0s
     0     0   27.50000    0   63   26.00000   27.50000  5.77%     -    0s
     0     0   27.50000    0   66   26.00000   27.50000  5.77%     -    0s
     0     0   27.42105    0   63   26.00000   27.42105  5.47%     -    0s
     0     2   27.42105    0   63   26.00000   27.42105  5.47%     -    0s

Cutting planes:
  Zero half: 16

Explored 10 nodes (449 simplex iterations) in 0.03 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.600000000000e+01, best bound 2.600000000000e+01, gap 0.0%