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

Optimize a model with 112 rows, 62 columns and 224 nonzeros
Presolve removed 28 rows and 12 columns
Presolve time: 0.00s
Presolved: 84 rows, 50 columns, 170 nonzeros
Variable types: 0 continuous, 50 integer (50 binary)
Found heuristic solution: objective 28.0000000

Root relaxation: objective 3.000000e+01, 64 iterations, 0.00 seconds

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

     0     0   30.00000    0   42   28.00000   30.00000  7.14%     -    0s
*    0     0               0      29.0000000   29.00000   0.0%     -    0s

Cutting planes:
  Gomory: 1
  Zero half: 9

Explored 0 nodes (105 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%