Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:44:31 2012

Optimize a model with 1575 rows, 79 columns and 3150 nonzeros
Presolve removed 1121 rows and 0 columns
Presolve time: 0.04s
Presolved: 454 rows, 79 columns, 2921 nonzeros
Variable types: 0 continuous, 79 integer (79 binary)
Found heuristic solution: objective 7.0000000

Root relaxation: objective 1.192572e+01, 262 iterations, 0.01 seconds

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

     0     0   11.92572    0   71    7.00000   11.92572  70.4%     -    0s
     0     0   11.69114    0   77    7.00000   11.69114  67.0%     -    0s
     0     0   11.62103    0   77    7.00000   11.62103  66.0%     -    0s
     0     0   11.60236    0   78    7.00000   11.60236  65.7%     -    0s
H    0     0                       8.0000000   11.60236  45.0%     -    0s
     0     0   11.59760    0   77    8.00000   11.59760  45.0%     -    0s
     0     0   11.59686    0   78    8.00000   11.59686  45.0%     -    0s
     0     0   11.59679    0   78    8.00000   11.59679  45.0%     -    0s
     0     2   11.59674    0   78    8.00000   11.59674  45.0%     -    0s
H   28    10                       9.0000000   11.37898  26.4%  51.6    0s

Cutting planes:
  Clique: 30
  Zero half: 6

Explored 41 nodes (2550 simplex iterations) in 0.44 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%