Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:48:39 2012

Optimize a model with 2520 rows, 101 columns and 5040 nonzeros
Presolve removed 1800 rows and 0 columns
Presolve time: 0.08s
Presolved: 720 rows, 101 columns, 4855 nonzeros
Variable types: 0 continuous, 101 integer (101 binary)
Found heuristic solution: objective 8.0000000

Root relaxation: objective 1.416386e+01, 422 iterations, 0.02 seconds

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

     0     0   14.16386    0   93    8.00000   14.16386  77.0%     -    0s
     0     0   13.73680    0   97    8.00000   13.73680  71.7%     -    0s
     0     0   13.69632    0  100    8.00000   13.69632  71.2%     -    0s
     0     0   13.67027    0   99    8.00000   13.67027  70.9%     -    0s
     0     0   13.65400    0  100    8.00000   13.65400  70.7%     -    0s
     0     0   13.64261    0  100    8.00000   13.64261  70.5%     -    0s
H    0     0                       9.0000000   13.64261  51.6%     -    0s
     0     0   13.64003    0   99    9.00000   13.64003  51.6%     -    0s
     0     0   13.62206    0   98    9.00000   13.62206  51.4%     -    0s
     0     0   13.61939    0  100    9.00000   13.61939  51.3%     -    0s
     0     0   13.61619    0  101    9.00000   13.61619  51.3%     -    1s
     0     0   13.61590    0  101    9.00000   13.61590  51.3%     -    1s
     0     0   13.61590    0  101    9.00000   13.61590  51.3%     -    1s
     0     2   13.61215    0  101    9.00000   13.61215  51.2%     -    1s

Cutting planes:
  Clique: 73
  Zero half: 1

Explored 150 nodes (11036 simplex iterations) in 1.98 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%