Gurobi 5.0.1 (linux64) logging started Tue Nov 20 12:32:01 2012

Optimize a model with 112 rows, 69 columns and 224 nonzeros
Presolve removed 94 rows and 54 columns
Presolve time: 0.00s
Presolved: 18 rows, 15 columns, 36 nonzeros
Variable types: 0 continuous, 15 integer (15 binary)
Found heuristic solution: objective 31.0000000

Root relaxation: objective 3.350000e+01, 17 iterations, 0.00 seconds

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

     0     0   33.50000    0   15   31.00000   33.50000  8.06%     -    0s
H    0     0                      33.0000000   33.50000  1.52%     -    0s

Explored 0 nodes (17 simplex iterations) in 0.00 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.300000000000e+01, best bound 3.300000000000e+01, gap 0.0%