Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:52:09 2012

Optimize a model with 29 rows, 23 columns and 93 nonzeros
Presolve time: 0.00s
Presolved: 29 rows, 23 columns, 93 nonzeros
Variable types: 0 continuous, 23 integer (23 binary)
Found heuristic solution: objective 7.0000000

Root relaxation: objective 0.000000e+00, 12 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    9    7.00000    0.00000   100%     -    0s
     0     0    0.83774    0   13    7.00000    0.83774  88.0%     -    0s
     0     0    0.85057    0   14    7.00000    0.85057  87.8%     -    0s
     0     0    0.92116    0   14    7.00000    0.92116  86.8%     -    0s
     0     0    0.92116    0   13    7.00000    0.92116  86.8%     -    0s
     0     0    0.92265    0   13    7.00000    0.92265  86.8%     -    0s
H    0     0                       6.0000000    0.92265  84.6%     -    0s
H    0     0                       4.0000000    0.92265  76.9%     -    0s
     0     2    0.95000    0   13    4.00000    0.95000  76.3%     -    0s

Cutting planes:
  Gomory: 1
  Zero half: 3
  Mod-K: 2

Explored 4 nodes (68 simplex iterations) in 0.00 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%