Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:25:59 2012

Optimize a model with 265 rows, 280 columns and 940 nonzeros
Presolve removed 0 rows and 24 columns
Presolve time: 0.00s
Presolved: 265 rows, 256 columns, 916 nonzeros
Variable types: 0 continuous, 256 integer (255 binary)
Found heuristic solution: objective 41.0000000

Root relaxation: objective 0.000000e+00, 176 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   99   41.00000    0.00000   100%     -    0s
H    0     0                      36.0000000    0.00000   100%     -    0s
H    0     0                      25.0000000    0.00000   100%     -    0s
H    0     0                      21.0000000    0.00000   100%     -    0s
     0     0    0.02270    0  101   21.00000    0.02270   100%     -    0s
H    0     0                      17.0000000    0.02270   100%     -    0s
H    0     0                      14.0000000    0.02270   100%     -    0s
H    0     0                      11.0000000    0.02270   100%     -    0s
     0     0    0.74922    0  103   11.00000    0.74922  93.2%     -    0s
H    0     0                       9.0000000    0.74922  91.7%     -    0s
     0     0    0.74926    0  109    9.00000    0.74926  91.7%     -    0s
     0     0    0.74926    0  105    9.00000    0.74926  91.7%     -    0s
H    0     0                       8.0000000    0.74926  90.6%     -    0s
     0     2    0.75664    0  105    8.00000    0.75664  90.5%     -    0s
*   18    18              14       4.0000000    1.00000  75.0%  30.0    0s

Cutting planes:
  Gomory: 4
  Zero half: 8

Explored 95 nodes (4144 simplex iterations) in 0.16 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.000000000000e+00, best bound 4.000000000000e+00, gap 0.0%