Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:19:04 2012

Optimize a model with 161 rows, 141 columns and 541 nonzeros
Presolve removed 0 rows and 1 columns
Presolve time: 0.00s
Presolved: 161 rows, 140 columns, 540 nonzeros
Variable types: 0 continuous, 140 integer (139 binary)
Found heuristic solution: objective 31.0000000

Root relaxation: objective 0.000000e+00, 82 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   57   31.00000    0.00000   100%     -    0s
H    0     0                      27.0000000    0.00000   100%     -    0s
     0     0    0.45922    0   60   27.00000    0.45922  98.3%     -    0s
H    0     0                      21.0000000    0.45922  97.8%     -    0s
     0     0    0.96443    0   62   21.00000    0.96443  95.4%     -    0s
H    0     0                      19.0000000    0.96443  94.9%     -    0s
     0     0    0.98142    0   64   19.00000    0.98142  94.8%     -    0s
     0     0    0.98142    0   64   19.00000    0.98142  94.8%     -    0s
H    0     0                      18.0000000    0.98142  94.5%     -    0s
     0     2    1.01608    0   64   18.00000    1.01608  94.4%     -    0s
*   22    17              17      12.0000000    2.83219  76.4%  22.5    0s
*   36    16              11      11.0000000    2.89093  73.7%  18.3    0s
*   47     8               8       7.0000000    4.49285  35.8%  17.9    0s

Cutting planes:
  Gomory: 4
  Mod-K: 1

Explored 60 nodes (1426 simplex iterations) in 0.11 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 7.000000000000e+00, best bound 7.000000000000e+00, gap 0.0%