Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:54:37 2012

Optimize a model with 3243 rows, 115 columns and 6486 nonzeros
Presolve removed 2335 rows and 0 columns
Presolve time: 0.11s
Presolved: 908 rows, 115 columns, 6318 nonzeros
Variable types: 0 continuous, 115 integer (115 binary)
Found heuristic solution: objective 6.0000000

Root relaxation: objective 1.612575e+01, 479 iterations, 0.02 seconds

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

     0     0   16.12575    0  109    6.00000   16.12575   169%     -    0s
H    0     0                       7.0000000   16.12575   130%     -    0s
H    0     0                       9.0000000   16.12575  79.2%     -    0s
     0     0   15.42968    0  113    9.00000   15.42968  71.4%     -    0s
     0     0   15.39265    0  114    9.00000   15.39265  71.0%     -    0s
     0     0   15.37079    0  114    9.00000   15.37079  70.8%     -    0s
     0     0   15.33771    0  114    9.00000   15.33771  70.4%     -    0s
     0     0   15.30450    0  113    9.00000   15.30450  70.0%     -    0s
     0     0   15.29559    0  113    9.00000   15.29559  70.0%     -    1s
     0     0   15.29431    0  114    9.00000   15.29431  69.9%     -    1s
     0     0   15.29381    0  112    9.00000   15.29381  69.9%     -    1s
     0     0   15.29114    0  113    9.00000   15.29114  69.9%     -    1s
     0     0   15.29103    0  113    9.00000   15.29103  69.9%     -    1s
     0     2   15.28880    0  113    9.00000   15.28880  69.9%     -    2s

Cutting planes:
  Clique: 116
  Zero half: 1

Explored 577 nodes (31386 simplex iterations) in 4.08 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%