Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:44:25 2012

Optimize a model with 1502 rows, 78 columns and 3004 nonzeros
Presolve removed 1046 rows and 0 columns
Presolve time: 0.03s
Presolved: 456 rows, 78 columns, 2847 nonzeros
Variable types: 0 continuous, 78 integer (78 binary)
Found heuristic solution: objective 7.0000000

Root relaxation: objective 1.245690e+01, 269 iterations, 0.01 seconds

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

     0     0   12.45690    0   72    7.00000   12.45690  78.0%     -    0s
H    0     0                       8.0000000   12.45690  55.7%     -    0s
     0     0   11.75953    0   77    8.00000   11.75953  47.0%     -    0s
     0     0   11.73752    0   77    8.00000   11.73752  46.7%     -    0s
     0     0   11.67635    0   77    8.00000   11.67635  46.0%     -    0s
     0     0   11.67142    0   77    8.00000   11.67142  45.9%     -    0s
     0     0   11.65838    0   77    8.00000   11.65838  45.7%     -    0s
     0     0   11.65753    0   77    8.00000   11.65753  45.7%     -    0s
     0     0   11.65707    0   77    8.00000   11.65707  45.7%     -    0s
     0     0   11.65674    0   77    8.00000   11.65674  45.7%     -    0s
     0     2   11.65632    0   77    8.00000   11.65632  45.7%     -    0s
*   33    10               4       9.0000000   11.54180  28.2%  40.4    0s

Cutting planes:
  Clique: 51

Explored 46 nodes (2687 simplex iterations) in 0.52 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%