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

Optimize a model with 1322 rows, 74 columns and 2644 nonzeros
Presolve removed 948 rows and 0 columns
Presolve time: 0.03s
Presolved: 374 rows, 74 columns, 2273 nonzeros
Variable types: 0 continuous, 74 integer (74 binary)
Found heuristic solution: objective 6.0000000

Root relaxation: objective 1.190093e+01, 234 iterations, 0.01 seconds

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

     0     0   11.90093    0   70    6.00000   11.90093  98.3%     -    0s
H    0     0                       8.0000000   11.90093  48.8%     -    0s
     0     0   11.68426    0   72    8.00000   11.68426  46.1%     -    0s
     0     0   11.61819    0   72    8.00000   11.61819  45.2%     -    0s
     0     0   11.60435    0   72    8.00000   11.60435  45.1%     -    0s
     0     0   11.58254    0   69    8.00000   11.58254  44.8%     -    0s
     0     0   11.56468    0   73    8.00000   11.56468  44.6%     -    0s
     0     0   11.55632    0   72    8.00000   11.55632  44.5%     -    0s
     0     0   11.55494    0   73    8.00000   11.55494  44.4%     -    0s
     0     2   11.55459    0   73    8.00000   11.55459  44.4%     -    0s
*   51     9               5       9.0000000   10.89509  21.1%  41.8    0s

Cutting planes:
  Gomory: 1
  Clique: 31
  Zero half: 10

Explored 61 nodes (2799 simplex iterations) in 0.32 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%