Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:53:36 2012

Optimize a model with 3130 rows, 113 columns and 6260 nonzeros
Presolve removed 2237 rows and 0 columns
Presolve time: 0.10s
Presolved: 893 rows, 113 columns, 6069 nonzeros
Variable types: 0 continuous, 113 integer (113 binary)
Found heuristic solution: objective 8.0000000

Root relaxation: objective 1.552238e+01, 526 iterations, 0.02 seconds

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

     0     0   15.52238    0  113    8.00000   15.52238  94.0%     -    0s
H    0     0                       9.0000000   15.52238  72.5%     -    0s
     0     0   15.37220    0  113    9.00000   15.37220  70.8%     -    0s
     0     0   15.34056    0  112    9.00000   15.34056  70.5%     -    0s
     0     0   15.31548    0  113    9.00000   15.31548  70.2%     -    0s
     0     0   15.29834    0  113    9.00000   15.29834  70.0%     -    0s
     0     0   15.29169    0  113    9.00000   15.29169  69.9%     -    0s
     0     0   15.27685    0  113    9.00000   15.27685  69.7%     -    0s
     0     0   15.24784    0  113    9.00000   15.24784  69.4%     -    0s
     0     0   15.21912    0  113    9.00000   15.21912  69.1%     -    1s
     0     0   15.21269    0  113    9.00000   15.21269  69.0%     -    1s
     0     0   15.21143    0  112    9.00000   15.21143  69.0%     -    1s
     0     0   15.21123    0  113    9.00000   15.21123  69.0%     -    1s
     0     0   15.21120    0  113    9.00000   15.21120  69.0%     -    1s
     0     2   15.20849    0  113    9.00000   15.20849  69.0%     -    2s

Cutting planes:
  Gomory: 1
  Clique: 65
  Zero half: 1

Explored 571 nodes (29951 simplex iterations) in 3.92 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%