Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:43:16 2012

Optimize a model with 546 rows, 47 columns and 1092 nonzeros
Presolve removed 365 rows and 0 columns
Presolve time: 0.01s
Presolved: 181 rows, 47 columns, 989 nonzeros
Variable types: 0 continuous, 47 integer (47 binary)
Found heuristic solution: objective 5.0000000

Root relaxation: objective 9.147399e+00, 99 iterations, 0.00 seconds

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

     0     0    9.14740    0   38    5.00000    9.14740  82.9%     -    0s
H    0     0                       9.0000000    9.14740  1.64%     -    0s

Explored 0 nodes (107 simplex iterations) in 0.01 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 9.000000000000e+00, best bound 9.000000000000e+00, gap 0.0%