Gurobi 5.0.1 (linux64) logging started Tue Nov 20 12:32:00 2012

Optimize a model with 131 rows, 64 columns and 262 nonzeros
Presolve removed 9 rows and 4 columns
Presolve time: 0.00s
Presolved: 122 rows, 60 columns, 246 nonzeros
Variable types: 0 continuous, 60 integer (60 binary)
Found heuristic solution: objective 27.0000000

Root relaxation: objective 3.200000e+01, 72 iterations, 0.00 seconds

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

     0     0   32.00000    0   54   27.00000   32.00000  18.5%     -    0s
     0     0   31.00000    0   54   27.00000   31.00000  14.8%     -    0s
     0     0   30.80000    0   59   27.00000   30.80000  14.1%     -    0s
H    0     0                      28.0000000   30.80000  10.0%     -    0s
     0     0   30.25000    0   59   28.00000   30.25000  8.04%     -    0s
     0     0   30.00000    0   58   28.00000   30.00000  7.14%     -    0s
     0     0   29.92857    0   60   28.00000   29.92857  6.89%     -    0s
H    0     0                      29.0000000   29.92857  3.20%     -    0s

Cutting planes:
  Zero half: 18

Explored 0 nodes (193 simplex iterations) in 0.01 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.900000000000e+01, best bound 2.900000000000e+01, gap 0.0%