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

Optimize a model with 416 rows, 41 columns and 832 nonzeros
Presolve removed 295 rows and 0 columns
Presolve time: 0.00s
Presolved: 121 rows, 41 columns, 651 nonzeros
Variable types: 0 continuous, 41 integer (41 binary)
Found heuristic solution: objective 5.0000000

Root relaxation: objective 8.154887e+00, 73 iterations, 0.00 seconds

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

     0     0    8.15489    0   38    5.00000    8.15489  63.1%     -    0s
H    0     0                       6.0000000    8.15489  35.9%     -    0s
     0     0    7.85475    0   36    6.00000    7.85475  30.9%     -    0s
     0     0    7.79444    0   38    6.00000    7.79444  29.9%     -    0s
     0     0    7.75958    0   38    6.00000    7.75958  29.3%     -    0s
     0     0    7.74150    0   38    6.00000    7.74150  29.0%     -    0s
     0     0    7.73776    0   37    6.00000    7.73776  29.0%     -    0s
     0     0    7.73627    0   37    6.00000    7.73627  28.9%     -    0s
     0     0    7.73627    0   37    6.00000    7.73627  28.9%     -    0s
     0     2    7.73067    0   37    6.00000    7.73067  28.8%     -    0s

Cutting planes:
  Clique: 17
  Zero half: 7

Explored 9 nodes (427 simplex iterations) in 0.04 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%