Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:43:14 2012

Optimize a model with 461 rows, 43 columns and 922 nonzeros
Presolve removed 316 rows and 0 columns
Presolve time: 0.01s
Presolved: 145 rows, 43 columns, 788 nonzeros
Variable types: 0 continuous, 43 integer (43 binary)
Found heuristic solution: objective 7.0000000

Root relaxation: objective 8.666667e+00, 97 iterations, 0.00 seconds

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

     0     0    8.66667    0   26    7.00000    8.66667  23.8%     -    0s
H    0     0                       8.0000000    8.66667  8.33%     -    0s

Explored 0 nodes (105 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%