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

Optimize a model with 97 rows, 58 columns and 194 nonzeros
Presolve removed 27 rows and 12 columns
Presolve time: 0.00s
Presolved: 70 rows, 46 columns, 140 nonzeros
Variable types: 0 continuous, 46 integer (46 binary)
Found heuristic solution: objective 23.0000000

Root relaxation: objective 2.800000e+01, 59 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   46   23.00000   28.00000  21.7%     -    0s
H    0     0                      24.0000000   28.00000  16.7%     -    0s
*    0     0               0      27.0000000   27.00000   0.0%     -    0s

Cutting planes:
  Gomory: 1
  Zero half: 15

Explored 0 nodes (115 simplex iterations) in 0.00 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%