Gurobi 5.0.1 (linux64) logging started Tue Nov 20 12:31:59 2012

Optimize a model with 96 rows, 59 columns and 192 nonzeros
Presolve removed 40 rows and 23 columns
Presolve time: 0.00s
Presolved: 56 rows, 36 columns, 118 nonzeros
Variable types: 0 continuous, 36 integer (36 binary)
Found heuristic solution: objective 28.0000000

Root relaxation: objective 3.050000e+01, 39 iterations, 0.00 seconds

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

     0     0   30.50000    0   29   28.00000   30.50000  8.93%     -    0s
H    0     0                      29.0000000   30.50000  5.17%     -    0s
     0     0   30.00000    0   20   29.00000   30.00000  3.45%     -    0s
     0     0   30.00000    0   29   29.00000   30.00000  3.45%     -    0s
     0     0     cutoff    0        29.00000   29.99997  3.45%     -    0s

Cutting planes:
  Gomory: 1
  Zero half: 8

Explored 0 nodes (64 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%