Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:43:46 2012

Optimize a model with 1150 rows, 68 columns and 2300 nonzeros
Presolve removed 817 rows and 0 columns
Presolve time: 0.02s
Presolved: 333 rows, 68 columns, 2081 nonzeros
Variable types: 0 continuous, 68 integer (68 binary)
Found heuristic solution: objective 6.0000000

Root relaxation: objective 1.120664e+01, 146 iterations, 0.00 seconds

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

     0     0   11.20664    0   61    6.00000   11.20664  86.8%     -    0s
H    0     0                       7.0000000   11.20664  60.1%     -    0s
     0     0   10.61124    0   67    7.00000   10.61124  51.6%     -    0s
H    0     0                       8.0000000   10.61124  32.6%     -    0s
     0     0   10.55994    0   65    8.00000   10.55994  32.0%     -    0s
     0     0   10.54089    0   67    8.00000   10.54089  31.8%     -    0s
     0     0   10.52851    0   66    8.00000   10.52851  31.6%     -    0s
     0     0   10.52216    0   66    8.00000   10.52216  31.5%     -    0s
     0     0   10.51804    0   66    8.00000   10.51804  31.5%     -    0s
     0     0   10.50199    0   67    8.00000   10.50199  31.3%     -    0s
     0     0   10.49583    0   67    8.00000   10.49583  31.2%     -    0s
     0     0   10.49412    0   67    8.00000   10.49412  31.2%     -    0s
     0     0   10.49408    0   67    8.00000   10.49408  31.2%     -    0s
     0     2   10.49075    0   67    8.00000   10.49075  31.1%     -    0s

Cutting planes:
  Clique: 42
  Zero half: 5

Explored 32 nodes (1630 simplex iterations) in 0.28 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%