Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:44:28 2012

Optimize a model with 1528 rows, 79 columns and 3056 nonzeros
Presolve removed 1076 rows and 0 columns
Presolve time: 0.03s
Presolved: 452 rows, 79 columns, 2884 nonzeros
Variable types: 0 continuous, 79 integer (79 binary)
Found heuristic solution: objective 6.0000000

Root relaxation: objective 1.227612e+01, 248 iterations, 0.01 seconds

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

     0     0   12.27612    0   72    6.00000   12.27612   105%     -    0s
H    0     0                       8.0000000   12.27612  53.5%     -    0s
     0     0   11.87078    0   77    8.00000   11.87078  48.4%     -    0s
     0     0   11.81111    0   76    8.00000   11.81111  47.6%     -    0s
     0     0   11.77002    0   78    8.00000   11.77002  47.1%     -    0s
H    0     0                       9.0000000   11.77002  30.8%     -    0s
     0     0   11.75672    0   75    9.00000   11.75672  30.6%     -    0s
     0     0   11.74084    0   78    9.00000   11.74084  30.5%     -    0s
     0     0   11.74032    0   78    9.00000   11.74032  30.4%     -    0s
     0     0   11.74027    0   78    9.00000   11.74027  30.4%     -    0s
     0     2   11.73976    0   78    9.00000   11.73976  30.4%     -    0s

Cutting planes:
  Clique: 41
  Zero half: 3

Explored 29 nodes (2193 simplex iterations) in 0.40 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%