Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:53:52 2012

Optimize a model with 3133 rows, 113 columns and 6266 nonzeros
Presolve removed 2263 rows and 0 columns
Presolve time: 0.10s
Presolved: 870 rows, 113 columns, 5971 nonzeros
Variable types: 0 continuous, 113 integer (113 binary)
Found heuristic solution: objective 7.0000000

Root relaxation: objective 1.552798e+01, 444 iterations, 0.02 seconds

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

     0     0   15.52798    0  108    7.00000   15.52798   122%     -    0s
     0     0   15.18371    0  112    7.00000   15.18371   117%     -    0s
H    0     0                       8.0000000   15.18371  89.8%     -    0s
H    0     0                       9.0000000   15.18371  68.7%     -    0s
     0     0   15.11287    0  111    9.00000   15.11287  67.9%     -    0s
     0     0   15.06617    0  112    9.00000   15.06617  67.4%     -    0s
     0     0   15.04572    0  110    9.00000   15.04572  67.2%     -    0s
     0     0   15.02705    0  112    9.00000   15.02705  67.0%     -    0s
     0     0   15.02663    0  112    9.00000   15.02663  67.0%     -    0s
     0     0   15.02661    0  112    9.00000   15.02661  67.0%     -    1s
     0     0   15.02632    0  112    9.00000   15.02632  67.0%     -    1s
     0     2   15.02443    0  112    9.00000   15.02443  66.9%     -    1s

Cutting planes:
  Clique: 65
  Zero half: 2

Explored 490 nodes (27518 simplex iterations) in 2.93 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%