Gurobi 5.0.1 (linux64) logging started Tue Nov 20 05:48:43 2012

Optimize a model with 233 rows, 69 columns and 466 nonzeros
Presolve removed 92 rows and 5 columns
Presolve time: 0.00s
Presolved: 141 rows, 64 columns, 328 nonzeros
Variable types: 0 continuous, 64 integer (64 binary)
Found heuristic solution: objective 23.0000000

Root relaxation: objective 2.800000e+01, 93 iterations, 0.00 seconds

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

     0     0   28.00000    0   34   23.00000   28.00000  21.7%     -    0s
H    0     0                      24.0000000   28.00000  16.7%     -    0s
H    0     0                      25.0000000   28.00000  12.0%     -    0s
     0     0   27.66667    0   51   25.00000   27.66667  10.7%     -    0s
H    0     0                      26.0000000   27.66667  6.41%     -    0s
     0     0   27.53333    0   54   26.00000   27.53333  5.90%     -    0s
     0     0   27.00000    0   59   26.00000   27.00000  3.85%     -    0s
     0     0 infeasible    0        26.00000   26.99997  3.85%     -    0s

Cutting planes:
  Zero half: 38

Explored 0 nodes (237 simplex iterations) in 0.01 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%