Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:37:50 2012

Optimize a model with 55 rows, 48 columns and 183 nonzeros
Presolve time: 0.00s
Presolved: 55 rows, 48 columns, 183 nonzeros
Variable types: 0 continuous, 48 integer (48 binary)
Found heuristic solution: objective 8.0000000

Root relaxation: objective 0.000000e+00, 28 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   19    8.00000    0.00000   100%     -    0s
H    0     0                       6.0000000    0.00000   100%     -    0s
     0     0    0.75789    0   20    6.00000    0.75789  87.4%     -    0s
     0     0    1.00000    0   23    6.00000    1.00000  83.3%     -    0s
     0     0    1.00000    0   19    6.00000    1.00000  83.3%     -    0s
     0     0    1.00000    0   20    6.00000    1.00000  83.3%     -    0s
     0     0    1.00000    0   20    6.00000    1.00000  83.3%     -    0s
     0     2    1.00416    0   20    6.00000    1.00416  83.3%     -    0s
*    8     3               5       5.0000000    2.36417  52.7%  21.0    0s

Cutting planes:
  Gomory: 2
  Zero half: 2
  Mod-K: 1

Explored 13 nodes (358 simplex iterations) in 0.02 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 5.000000000000e+00, best bound 5.000000000000e+00, gap 0.0%