Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:43:11 2012

Optimize a model with 224 rows, 31 columns and 448 nonzeros
Presolve removed 157 rows and 0 columns
Presolve time: 0.00s
Presolved: 67 rows, 31 columns, 308 nonzeros
Variable types: 0 continuous, 31 integer (31 binary)
Found heuristic solution: objective 6.0000000

Root relaxation: objective 7.222222e+00, 40 iterations, 0.00 seconds

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

     0     0    7.22222    0   23    6.00000    7.22222  20.4%     -    0s
     0     0     cutoff    0         6.00000    6.99999  16.7%     -    0s

Explored 0 nodes (48 simplex iterations) in 0.00 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 6.000000000000e+00, best bound 6.000000000000e+00, gap 0.0%