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

Optimize a model with 31 rows, 24 columns and 99 nonzeros
Presolve time: 0.00s
Presolved: 31 rows, 24 columns, 99 nonzeros
Variable types: 0 continuous, 24 integer (24 binary)
Found heuristic solution: objective 7.0000000

Root relaxation: objective 0.000000e+00, 13 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    0.96296    0   11    7.00000    0.96296  86.2%     -    0s
     0     0    1.18519    0   11    7.00000    1.18519  83.1%     -    0s
     0     0    1.31028    0   18    7.00000    1.31028  81.3%     -    0s
H    0     0                       5.0000000    1.31028  73.8%     -    0s
     0     0    1.33806    0   19    5.00000    1.33806  73.2%     -    0s
     0     0    1.34653    0   17    5.00000    1.34653  73.1%     -    0s
     0     0    1.47368    0   15    5.00000    1.47368  70.5%     -    0s
     0     0    1.48222    0   19    5.00000    1.48222  70.4%     -    0s
     0     2    1.48458    0   19    5.00000    1.48458  70.3%     -    0s

Cutting planes:
  Gomory: 1
  Zero half: 1
  Mod-K: 4

Explored 10 nodes (152 simplex iterations) in 0.01 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%