Gurobi 5.0.1 (linux64) logging started Tue Nov 20 05:48:40 2012

Optimize a model with 173 rows, 60 columns and 346 nonzeros
Presolve removed 41 rows and 1 columns
Presolve time: 0.00s
Presolved: 132 rows, 59 columns, 293 nonzeros
Variable types: 0 continuous, 59 integer (59 binary)
Found heuristic solution: objective 21.0000000

Root relaxation: objective 2.600000e+01, 75 iterations, 0.00 seconds

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

     0     0   26.00000    0   42   21.00000   26.00000  23.8%     -    0s
H    0     0                      23.0000000   26.00000  13.0%     -    0s
     0     0   25.75000    0   52   23.00000   25.75000  12.0%     -    0s
     0     0   25.28571    0   59   23.00000   25.28571  9.94%     -    0s
H    0     0                      24.0000000   25.28571  5.36%     -    0s
     0     0     cutoff    0        24.00000   24.99997  4.17%     -    0s

Cutting planes:
  Zero half: 41

Explored 0 nodes (198 simplex iterations) in 0.01 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%