Gurobi 5.0.1 (linux64) logging started Tue Nov 20 05:48:49 2012

Optimize a model with 330 rows, 80 columns and 660 nonzeros
Presolve removed 94 rows and 0 columns
Presolve time: 0.00s
Presolved: 236 rows, 80 columns, 552 nonzeros
Variable types: 0 continuous, 80 integer (80 binary)
Found heuristic solution: objective 26.0000000

Root relaxation: objective 3.085000e+01, 150 iterations, 0.00 seconds

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

     0     0   30.85000    0   72   26.00000   30.85000  18.7%     -    0s
     0     0   29.77358    0   77   26.00000   29.77358  14.5%     -    0s
     0     0   29.71429    0   78   26.00000   29.71429  14.3%     -    0s
     0     0   29.62028    0   79   26.00000   29.62028  13.9%     -    0s
     0     0   29.52617    0   79   26.00000   29.52617  13.6%     -    0s
H    0     0                      27.0000000   29.52617  9.36%     -    0s
     0     0   29.46465    0   80   27.00000   29.46465  9.13%     -    0s
     0     0   29.28364    0   80   27.00000   29.28364  8.46%     -    0s
     0     0   29.21631    0   76   27.00000   29.21631  8.21%     -    0s
     0     0   29.11972    0   79   27.00000   29.11972  7.85%     -    0s
     0     0   29.09966    0   80   27.00000   29.09966  7.78%     -    0s
     0     0   29.09966    0   80   27.00000   29.09966  7.78%     -    0s
     0     2   29.09400    0   80   27.00000   29.09400  7.76%     -    0s

Cutting planes:
  Gomory: 2
  Zero half: 34

Explored 22 nodes (905 simplex iterations) in 0.06 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.700000000000e+01, best bound 2.700000000000e+01, gap 0.0%