Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:03:32 2012

Optimize a model with 401 rows, 400 columns and 1400 nonzeros
Presolve removed 0 rows and 27 columns
Presolve time: 0.00s
Presolved: 401 rows, 373 columns, 1373 nonzeros
Variable types: 0 continuous, 373 integer (372 binary)
Found heuristic solution: objective 68.0000000

Root relaxation: objective 0.000000e+00, 233 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  159   68.00000    0.00000   100%     -    0s
H    0     0                      61.0000000    0.00000   100%     -    0s
H    0     0                      56.0000000    0.00000   100%     -    0s
     0     0    0.34361    0  162   56.00000    0.34361  99.4%     -    0s
H    0     0                      49.0000000    0.34361  99.3%     -    0s
H    0     0                      37.0000000    0.34361  99.1%     -    0s
H    0     0                      34.0000000    0.34361  99.0%     -    0s
     0     0    0.85432    0  165   34.00000    0.85432  97.5%     -    0s
H    0     0                      28.0000000    0.85432  96.9%     -    0s
     0     0    0.85432    0  165   28.00000    0.85432  96.9%     -    0s
H    0     0                      26.0000000    0.85432  96.7%     -    0s
     0     2    0.85463    0  165   26.00000    0.85463  96.7%     -    0s
H   27    27                      13.0000000    1.71617  86.8%  41.6    0s
*   50    18              31       9.0000000    1.71617  80.9%  29.4    0s
H   82    18                       8.0000000    3.76503  52.9%  32.7    0s

Cutting planes:
  Gomory: 4
  Zero half: 2

Explored 138 nodes (5534 simplex iterations) in 0.27 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%