Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:00:16 2012

Optimize a model with 389 rows, 390 columns and 1360 nonzeros
Presolve removed 0 rows and 32 columns
Presolve time: 0.00s
Presolved: 389 rows, 358 columns, 1328 nonzeros
Variable types: 0 continuous, 358 integer (357 binary)
Found heuristic solution: objective 68.0000000

Root relaxation: objective 0.000000e+00, 239 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  151   68.00000    0.00000   100%     -    0s
H    0     0                      41.0000000    0.00000   100%     -    0s
     0     0    0.23556    0  153   41.00000    0.23556  99.4%     -    0s
H    0     0                      37.0000000    0.23556  99.4%     -    0s
     0     0    0.81582    0  158   37.00000    0.81582  97.8%     -    0s
H    0     0                      30.0000000    0.81582  97.3%     -    0s
     0     0    0.81582    0  158   30.00000    0.81582  97.3%     -    0s
     0     2    0.82477    0  158   30.00000    0.82477  97.3%     -    0s
H   27    27                      11.0000000    1.00000  90.9%  32.9    0s
H   54    52                      10.0000000    1.00000  90.0%  20.1    0s
*   76    23              60       9.0000000    1.00000  88.9%  16.5    0s
*  173    34              13       8.0000000    2.82759  64.7%  25.0    0s

Cutting planes:
  Gomory: 4
  Zero half: 10

Explored 268 nodes (7486 simplex iterations) in 0.35 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%