Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:59:21 2012

Optimize a model with 3764 rows, 122 columns and 7528 nonzeros
Presolve removed 2682 rows and 0 columns
Presolve time: 0.12s
Presolved: 1082 rows, 122 columns, 7621 nonzeros
Variable types: 0 continuous, 122 integer (122 binary)
Found heuristic solution: objective 8.0000000

Root relaxation: objective 1.588355e+01, 564 iterations, 0.03 seconds

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

     0     0   15.88355    0  116    8.00000   15.88355  98.5%     -    0s
     0     0   15.34315    0  120    8.00000   15.34315  91.8%     -    0s
     0     0   15.25415    0  122    8.00000   15.25415  90.7%     -    0s
     0     0   15.21507    0  122    8.00000   15.21507  90.2%     -    0s
     0     0   15.18866    0  122    8.00000   15.18866  89.9%     -    0s
     0     0   15.18391    0  122    8.00000   15.18391  89.8%     -    1s
     0     0   15.17749    0  122    8.00000   15.17749  89.7%     -    1s
     0     0   15.17660    0  122    8.00000   15.17660  89.7%     -    1s
     0     0   15.17620    0  122    8.00000   15.17620  89.7%     -    1s
H    0     0                       9.0000000   15.17620  68.6%     -    1s
     0     0   15.17603    0  122    9.00000   15.17603  68.6%     -    1s
     0     2   15.17540    0  122    9.00000   15.17540  68.6%     -    2s

Cutting planes:
  Clique: 134

Explored 551 nodes (35628 simplex iterations) in 4.55 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%