Gurobi 5.0.1 (linux64) logging started Tue Nov 20 05:48:46 2012

Optimize a model with 270 rows, 75 columns and 540 nonzeros
Presolve removed 62 rows and 0 columns
Presolve time: 0.00s
Presolved: 208 rows, 75 columns, 467 nonzeros
Variable types: 0 continuous, 75 integer (75 binary)
Found heuristic solution: objective 24.0000000

Root relaxation: objective 3.075000e+01, 103 iterations, 0.00 seconds

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

     0     0   30.75000    0   62   24.00000   30.75000  28.1%     -    0s
     0     0   30.00000    0   67   24.00000   30.00000  25.0%     -    0s
H    0     0                      25.0000000   30.00000  20.0%     -    0s
     0     0   29.76042    0   74   25.00000   29.76042  19.0%     -    0s
     0     0   29.00000    0   74   25.00000   29.00000  16.0%     -    0s
     0     0   29.00000    0   74   25.00000   29.00000  16.0%     -    0s
     0     0   29.00000    0   70   25.00000   29.00000  16.0%     -    0s
H    0     0                      26.0000000   29.00000  11.5%     -    0s
     0     0   29.00000    0   71   26.00000   29.00000  11.5%     -    0s
     0     0   29.00000    0   67   26.00000   29.00000  11.5%     -    0s
     0     2   29.00000    0   67   26.00000   29.00000  11.5%     -    0s

Cutting planes:
  Gomory: 1
  Zero half: 25

Explored 26 nodes (1206 simplex iterations) in 0.05 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%