Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:43:26 2012

Optimize a model with 804 rows, 58 columns and 1608 nonzeros
Presolve removed 548 rows and 0 columns
Presolve time: 0.01s
Presolved: 256 rows, 58 columns, 1414 nonzeros
Variable types: 0 continuous, 58 integer (58 binary)
Found heuristic solution: objective 6.0000000

Root relaxation: objective 1.045688e+01, 127 iterations, 0.00 seconds

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

     0     0   10.45688    0   52    6.00000   10.45688  74.3%     -    0s
H    0     0                       7.0000000   10.45688  49.4%     -    0s
     0     0   10.24254    0   51    7.00000   10.24254  46.3%     -    0s
     0     0   10.10849    0   52    7.00000   10.10849  44.4%     -    0s
     0     0   10.05358    0   54    7.00000   10.05358  43.6%     -    0s
H    0     0                       8.0000000   10.05358  25.7%     -    0s
     0     0   10.04138    0   55    8.00000   10.04138  25.5%     -    0s
     0     0    9.98614    0   55    8.00000    9.98614  24.8%     -    0s
     0     0    9.97130    0   54    8.00000    9.97130  24.6%     -    0s
     0     0    9.96600    0   54    8.00000    9.96600  24.6%     -    0s
     0     0    9.96489    0   54    8.00000    9.96489  24.6%     -    0s
     0     0    9.96442    0   54    8.00000    9.96442  24.6%     -    0s
     0     2    9.96320    0   54    8.00000    9.96320  24.5%     -    0s

Cutting planes:
  Clique: 30
  Zero half: 5

Explored 14 nodes (771 simplex iterations) in 0.14 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%