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

Optimize a model with 101 rows, 54 columns and 202 nonzeros
Presolve removed 35 rows and 15 columns
Presolve time: 0.00s
Presolved: 66 rows, 39 columns, 132 nonzeros
Variable types: 0 continuous, 39 integer (39 binary)
Found heuristic solution: objective 26.0000000

Root relaxation: objective 2.750000e+01, 51 iterations, 0.00 seconds

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

     0     0   27.50000    0   39   26.00000   27.50000  5.77%     -    0s
*    0     0               0      27.0000000   27.00000   0.0%     -    0s

Cutting planes:
  Gomory: 1
  Zero half: 14

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 2.700000000000e+01, best bound 2.700000000000e+01, gap 0.0%