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

Optimize a model with 283 rows, 78 columns and 566 nonzeros
Presolve removed 87 rows and 2 columns
Presolve time: 0.00s
Presolved: 196 rows, 76 columns, 458 nonzeros
Variable types: 0 continuous, 76 integer (76 binary)
Found heuristic solution: objective 26.0000000

Root relaxation: objective 3.035417e+01, 128 iterations, 0.00 seconds

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

     0     0   30.35417    0   74   26.00000   30.35417  16.7%     -    0s
     0     0   29.68293    0   72   26.00000   29.68293  14.2%     -    0s
     0     0   29.33333    0   73   26.00000   29.33333  12.8%     -    0s
     0     0   29.31068    0   74   26.00000   29.31068  12.7%     -    0s
     0     0   29.24823    0   73   26.00000   29.24823  12.5%     -    0s
     0     0   29.12821    0   71   26.00000   29.12821  12.0%     -    0s
     0     0   29.03030    0   72   26.00000   29.03030  11.7%     -    0s
     0     0   28.90098    0   73   26.00000   28.90098  11.2%     -    0s
     0     0   28.86310    0   74   26.00000   28.86310  11.0%     -    0s
     0     0   28.85193    0   73   26.00000   28.85193  11.0%     -    0s
     0     0   28.84330    0   74   26.00000   28.84330  10.9%     -    0s
     0     0   28.84330    0   74   26.00000   28.84330  10.9%     -    0s
H    0     0                      27.0000000   28.84330  6.83%     -    0s
     0     2   28.84330    0   74   27.00000   28.84330  6.83%     -    0s

Cutting planes:
  Zero half: 37

Explored 25 nodes (816 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%