Gurobi 5.0.1 (linux64) logging started Tue Nov 20 05:48:37 2012

Optimize a model with 106 rows, 42 columns and 212 nonzeros
Presolve removed 28 rows and 0 columns
Presolve time: 0.00s
Presolved: 78 rows, 42 columns, 172 nonzeros
Variable types: 0 continuous, 42 integer (42 binary)
Found heuristic solution: objective 16.0000000

Root relaxation: objective 1.800000e+01, 58 iterations, 0.00 seconds

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

     0     0   18.00000    0   38   16.00000   18.00000  12.5%     -    0s
H    0     0                      17.0000000   18.00000  5.88%     -    0s
     0     0 infeasible    0        17.00000   17.99998  5.88%     -    0s

Cutting planes:
  Gomory: 1
  Zero half: 28

Explored 0 nodes (110 simplex iterations) in 0.01 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.700000000000e+01, best bound 1.700000000000e+01, gap 0.0%