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

Optimize a model with 273 rows, 73 columns and 546 nonzeros
Presolve removed 88 rows and 0 columns
Presolve time: 0.00s
Presolved: 185 rows, 73 columns, 440 nonzeros
Variable types: 0 continuous, 73 integer (73 binary)
Found heuristic solution: objective 24.0000000

Root relaxation: objective 2.866667e+01, 104 iterations, 0.00 seconds

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

     0     0   28.66667    0   59   24.00000   28.66667  19.4%     -    0s
H    0     0                      26.0000000   28.66667  10.3%     -    0s
     0     0   28.00000    0   61   26.00000   28.00000  7.69%     -    0s
     0     0   27.89130    0   68   26.00000   27.89130  7.27%     -    0s
     0     0   27.63333    0   68   26.00000   27.63333  6.28%     -    0s
     0     0   27.36842    0   59   26.00000   27.36842  5.26%     -    0s
     0     0   27.13546    0   66   26.00000   27.13546  4.37%     -    0s
     0     0     cutoff    0        26.00000   26.99997  3.85%     -    0s

Cutting planes:
  Gomory: 2
  Zero half: 42

Explored 0 nodes (359 simplex iterations) in 0.02 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%