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

Optimize a model with 263 rows, 74 columns and 526 nonzeros
Presolve removed 64 rows and 0 columns
Presolve time: 0.00s
Presolved: 199 rows, 74 columns, 447 nonzeros
Variable types: 0 continuous, 74 integer (74 binary)
Found heuristic solution: objective 25.0000000

Root relaxation: objective 2.980000e+01, 114 iterations, 0.00 seconds

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

     0     0   29.80000    0   65   25.00000   29.80000  19.2%     -    0s
H    0     0                      26.0000000   29.80000  14.6%     -    0s
     0     0   28.85714    0   65   26.00000   28.85714  11.0%     -    0s
     0     0   28.75000    0   67   26.00000   28.75000  10.6%     -    0s
     0     0   28.66667    0   66   26.00000   28.66667  10.3%     -    0s
     0     0   28.46154    0   69   26.00000   28.46154  9.47%     -    0s
     0     0   28.35897    0   70   26.00000   28.35897  9.07%     -    0s
     0     0   28.33333    0   63   26.00000   28.33333  8.97%     -    0s
H    0     0                      27.0000000   28.33333  4.94%     -    0s
     0     0   28.30000    0   70   27.00000   28.30000  4.81%     -    0s
     0     0   28.05172    0   70   27.00000   28.05172  3.90%     -    0s
     0     0     cutoff    0        27.00000   27.99997  3.70%     -    0s

Cutting planes:
  Zero half: 48

Explored 0 nodes (409 simplex iterations) in 0.03 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%