Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:11:15 2012

Optimize a model with 139 rows, 118 columns and 463 nonzeros
Presolve removed 0 rows and 2 columns
Presolve time: 0.00s
Presolved: 139 rows, 116 columns, 461 nonzeros
Variable types: 0 continuous, 116 integer (115 binary)
Found heuristic solution: objective 31.0000000

Root relaxation: objective 0.000000e+00, 70 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   46   31.00000    0.00000   100%     -    0s
H    0     0                      17.0000000    0.00000   100%     -    0s
     0     0    0.55797    0   47   17.00000    0.55797  96.7%     -    0s
     0     0    1.00000    0   49   17.00000    1.00000  94.1%     -    0s
H    0     0                      10.0000000    1.00000  90.0%     -    0s
     0     0    1.00000    0   49   10.00000    1.00000  90.0%     -    0s
     0     0    1.00000    0   48   10.00000    1.00000  90.0%     -    0s
     0     2    1.00000    0   46   10.00000    1.00000  90.0%     -    0s
*   29    15              16       9.0000000    2.33923  74.0%  21.7    0s
*   61    15               9       8.0000000    3.49555  56.3%  20.1    0s

Cutting planes:
  Gomory: 3

Explored 103 nodes (2432 simplex iterations) in 0.09 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 8.000000000000e+00, best bound 8.000000000000e+00, gap 0.0%