Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:37:37 2012

Optimize a model with 31 rows, 31 columns and 106 nonzeros
Presolve removed 0 rows and 2 columns
Presolve time: 0.00s
Presolved: 31 rows, 29 columns, 104 nonzeros
Variable types: 0 continuous, 29 integer (28 binary)
Found heuristic solution: objective 5.0000000

Root relaxation: objective 0.000000e+00, 19 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   13    5.00000    0.00000   100%     -    0s
H    0     0                       3.0000000    0.00000   100%     -    0s
     0     0    0.30864    0   15    3.00000    0.30864  89.7%     -    0s
     0     0    0.98918    0   18    3.00000    0.98918  67.0%     -    0s
     0     0    1.00257    0   18    3.00000    1.00257  66.6%     -    0s
     0     0    1.00257    0   18    3.00000    1.00257  66.6%     -    0s
     0     2    1.01538    0   18    3.00000    1.01538  66.2%     -    0s
*    8     2               5       2.0000000    1.33333  33.3%   4.1    0s

Cutting planes:
  Gomory: 3
  Zero half: 1

Explored 9 nodes (127 simplex iterations) in 0.01 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.000000000000e+00, best bound 2.000000000000e+00, gap 0.0%