Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:45:35 2012

Optimize a model with 1875 rows, 88 columns and 3750 nonzeros
Presolve removed 1346 rows and 0 columns
Presolve time: 0.05s
Presolved: 529 rows, 88 columns, 3398 nonzeros
Variable types: 0 continuous, 88 integer (88 binary)
Found heuristic solution: objective 7.0000000

Root relaxation: objective 1.350054e+01, 355 iterations, 0.01 seconds

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

     0     0   13.50054    0   82    7.00000   13.50054  92.9%     -    0s
H    0     0                       9.0000000   13.50054  50.0%     -    0s
     0     0   13.05634    0   86    9.00000   13.05634  45.1%     -    0s
     0     0   12.94665    0   88    9.00000   12.94665  43.9%     -    0s
     0     0   12.88224    0   88    9.00000   12.88224  43.1%     -    0s
     0     0   12.86186    0   88    9.00000   12.86186  42.9%     -    0s
     0     0   12.85944    0   88    9.00000   12.85944  42.9%     -    0s
     0     0   12.85139    0   88    9.00000   12.85139  42.8%     -    0s
     0     0   12.84801    0   88    9.00000   12.84801  42.8%     -    0s
     0     0   12.84392    0   88    9.00000   12.84392  42.7%     -    0s
     0     0   12.84235    0   88    9.00000   12.84235  42.7%     -    0s
     0     0   12.84234    0   88    9.00000   12.84234  42.7%     -    0s
     0     2   12.84144    0   88    9.00000   12.84144  42.7%     -    0s

Cutting planes:
  Clique: 74
  Zero half: 1

Explored 97 nodes (5961 simplex iterations) in 0.89 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%