Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:43:17 2012

Optimize a model with 566 rows, 48 columns and 1132 nonzeros
Presolve removed 389 rows and 0 columns
Presolve time: 0.01s
Presolved: 177 rows, 48 columns, 966 nonzeros
Variable types: 0 continuous, 48 integer (48 binary)
Found heuristic solution: objective 6.0000000

Root relaxation: objective 8.880351e+00, 96 iterations, 0.00 seconds

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

     0     0    8.88035    0   39    6.00000    8.88035  48.0%     -    0s
H    0     0                       8.0000000    8.88035  11.0%     -    0s

Explored 0 nodes (96 simplex iterations) in 0.01 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 8.000000000000e+00, best bound 8.000000000000e+00, gap 0.0%