Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:13:12 2012

Optimize a model with 163 rows, 139 columns and 544 nonzeros
Presolve removed 0 rows and 1 columns
Presolve time: 0.00s
Presolved: 163 rows, 138 columns, 543 nonzeros
Variable types: 0 continuous, 138 integer (137 binary)
Found heuristic solution: objective 31.0000000

Root relaxation: objective 0.000000e+00, 86 iterations, 0.00 seconds

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

     0     0    0.00000    0   54   31.00000    0.00000   100%     -    0s
H    0     0                      29.0000000    0.00000   100%     -    0s
H    0     0                      26.0000000    0.00000   100%     -    0s
H    0     0                      23.0000000    0.00000   100%     -    0s
     0     0    0.48225    0   55   23.00000    0.48225  97.9%     -    0s
     0     0    1.00000    0   58   23.00000    1.00000  95.7%     -    0s
H    0     0                      17.0000000    1.00000  94.1%     -    0s
     0     0    1.00000    0   57   17.00000    1.00000  94.1%     -    0s
     0     0    1.00000    0   54   17.00000    1.00000  94.1%     -    0s
H    0     0                      16.0000000    1.00000  93.8%     -    0s
H    0     0                      10.0000000    1.00000  90.0%     -    0s
     0     2    1.00000    0   54   10.00000    1.00000  90.0%     -    0s
*   63    13               8       9.0000000    5.65530  37.2%  23.0    0s

Cutting planes:
  Gomory: 2
  Zero half: 3

Explored 97 nodes (2485 simplex iterations) in 0.11 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%