Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:44:32 2012

Optimize a model with 1587 rows, 79 columns and 3174 nonzeros
Presolve removed 1122 rows and 0 columns
Presolve time: 0.04s
Presolved: 465 rows, 79 columns, 3019 nonzeros
Variable types: 0 continuous, 79 integer (79 binary)
Found heuristic solution: objective 7.0000000

Root relaxation: objective 1.173827e+01, 291 iterations, 0.01 seconds

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

     0     0   11.73827    0   72    7.00000   11.73827  67.7%     -    0s
     0     0   11.40823    0   78    7.00000   11.40823  63.0%     -    0s
     0     0   11.33350    0   76    7.00000   11.33350  61.9%     -    0s
     0     0   11.30238    0   78    7.00000   11.30238  61.5%     -    0s
     0     0   11.26825    0   78    7.00000   11.26825  61.0%     -    0s
H    0     0                       8.0000000   11.26825  40.9%     -    0s
     0     0   11.25615    0   77    8.00000   11.25615  40.7%     -    0s
     0     0   11.25580    0   77    8.00000   11.25580  40.7%     -    0s
     0     0   11.25567    0   78    8.00000   11.25567  40.7%     -    0s
     0     2   11.25394    0   78    8.00000   11.25394  40.7%     -    0s
*   53     0              11       9.0000000    9.00000   0.0%  56.5    0s

Cutting planes:
  Clique: 51
  Zero half: 2

Explored 54 nodes (3568 simplex iterations) in 0.47 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%