Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:44:21 2012

Optimize a model with 1505 rows, 77 columns and 3010 nonzeros
Presolve removed 1069 rows and 0 columns
Presolve time: 0.03s
Presolved: 436 rows, 77 columns, 2805 nonzeros
Variable types: 0 continuous, 77 integer (77 binary)
Found heuristic solution: objective 6.0000000

Root relaxation: objective 1.182634e+01, 258 iterations, 0.01 seconds

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

     0     0   11.82634    0   72    6.00000   11.82634  97.1%     -    0s
H    0     0                       7.0000000   11.82634  68.9%     -    0s
     0     0   11.33044    0   75    7.00000   11.33044  61.9%     -    0s
H    0     0                       8.0000000   11.33044  41.6%     -    0s
     0     0   11.20976    0   77    8.00000   11.20976  40.1%     -    0s
     0     0   11.18894    0   76    8.00000   11.18894  39.9%     -    0s
     0     0   11.17748    0   73    8.00000   11.17748  39.7%     -    0s
     0     0   11.16917    0   77    8.00000   11.16917  39.6%     -    0s
     0     0   11.15797    0   77    8.00000   11.15797  39.5%     -    0s
     0     0   11.15517    0   77    8.00000   11.15517  39.4%     -    0s
     0     0   11.15223    0   77    8.00000   11.15223  39.4%     -    0s
     0     0   11.15200    0   77    8.00000   11.15200  39.4%     -    0s
     0     2   11.14939    0   77    8.00000   11.14939  39.4%     -    0s
*   44     1               8       9.0000000   10.08856  12.1%  54.0    0s

Cutting planes:
  Clique: 44
  Zero half: 2

Explored 46 nodes (2922 simplex iterations) in 0.55 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%