Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:43:13 2012

Optimize a model with 419 rows, 41 columns and 838 nonzeros
Presolve removed 289 rows and 0 columns
Presolve time: 0.00s
Presolved: 130 rows, 41 columns, 666 nonzeros
Variable types: 0 continuous, 41 integer (41 binary)
Found heuristic solution: objective 5.0000000

Root relaxation: objective 8.600000e+00, 65 iterations, 0.00 seconds

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

     0     0    8.60000    0   31    5.00000    8.60000  72.0%     -    0s
H    0     0                       6.0000000    8.60000  43.3%     -    0s
     0     0    8.26632    0   35    6.00000    8.26632  37.8%     -    0s
H    0     0                       7.0000000    8.26632  18.1%     -    0s
     0     0    8.00000    0   31    7.00000    8.00000  14.3%     -    0s
     0     0    8.00000    0   29    7.00000    8.00000  14.3%     -    0s
     0     0    8.00000    0   27    7.00000    8.00000  14.3%     -    0s
     0     0    8.00000    0   27    7.00000    8.00000  14.3%     -    0s
     0     0    8.00000    0   23    7.00000    8.00000  14.3%     -    0s
     0     2    8.00000    0   23    7.00000    8.00000  14.3%     -    0s

Explored 5 nodes (364 simplex iterations) in 0.04 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 7.000000000000e+00, best bound 7.000000000000e+00, gap 0.0%