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

Optimize a model with 251 rows, 71 columns and 502 nonzeros
Presolve removed 68 rows and 0 columns
Presolve time: 0.00s
Presolved: 183 rows, 71 columns, 413 nonzeros
Variable types: 0 continuous, 71 integer (71 binary)
Found heuristic solution: objective 22.0000000

Root relaxation: objective 2.833333e+01, 110 iterations, 0.00 seconds

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

     0     0   28.33333    0   64   22.00000   28.33333  28.8%     -    0s
     0     0   27.93548    0   69   22.00000   27.93548  27.0%     -    0s
     0     0   27.42857    0   68   22.00000   27.42857  24.7%     -    0s
H    0     0                      23.0000000   27.42857  19.3%     -    0s
     0     0   27.21053    0   68   23.00000   27.21053  18.3%     -    0s
H    0     0                      24.0000000   27.21053  13.4%     -    0s
     0     0   27.00000    0   67   24.00000   27.00000  12.5%     -    0s
     0     0   26.92918    0   71   24.00000   26.92918  12.2%     -    0s
     0     0   26.80000    0   70   24.00000   26.80000  11.7%     -    0s
     0     0   26.79365    0   70   24.00000   26.79365  11.6%     -    0s
     0     0   26.79365    0   70   24.00000   26.79365  11.6%     -    0s
     0     2   26.79365    0   70   24.00000   26.79365  11.6%     -    0s
*   41     3               8      25.0000000   26.33333  5.33%  17.1    0s

Cutting planes:
  Zero half: 50

Explored 45 nodes (1134 simplex iterations) in 0.05 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.500000000000e+01, best bound 2.500000000000e+01, gap 0.0%