Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:33:12 2012

Optimize a model with 309 rows, 313 columns and 1083 nonzeros
Presolve removed 0 rows and 26 columns
Presolve time: 0.00s
Presolved: 309 rows, 287 columns, 1057 nonzeros
Variable types: 0 continuous, 287 integer (286 binary)
Found heuristic solution: objective 45.0000000

Root relaxation: objective 0.000000e+00, 184 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  121   45.00000    0.00000   100%     -    0s
H    0     0                      32.0000000    0.00000   100%     -    0s
     0     0    0.21026    0  123   32.00000    0.21026  99.3%     -    0s
H    0     0                      25.0000000    0.21026  99.2%     -    0s
     0     0    0.79327    0  125   25.00000    0.79327  96.8%     -    0s
H    0     0                      19.0000000    0.79327  95.8%     -    0s
     0     0    0.79327    0  125   19.00000    0.79327  95.8%     -    0s
H    0     0                      18.0000000    0.79327  95.6%     -    0s
     0     2    0.80449    0  125   18.00000    0.80449  95.5%     -    0s
H   28    22                      10.0000000    1.00000  90.0%  27.6    0s
*   41    23               8       9.0000000    1.00000  88.9%  29.0    0s
*   60    23              11       8.0000000    1.00000  87.5%  28.8    0s

Cutting planes:
  Gomory: 3
  Zero half: 1

Explored 140 nodes (3682 simplex iterations) in 0.17 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%