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

Optimize a model with 43 rows, 42 columns and 147 nonzeros
Presolve removed 0 rows and 5 columns
Presolve time: 0.00s
Presolved: 43 rows, 37 columns, 142 nonzeros
Variable types: 0 continuous, 37 integer (36 binary)
Found heuristic solution: objective 4.0000000

Root relaxation: objective 0.000000e+00, 20 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   15    4.00000    0.00000   100%     -    0s
     0     0    0.33333    0   16    4.00000    0.33333  91.7%     -    0s
     0     0    1.00000    0   21    4.00000    1.00000  75.0%     -    0s
H    0     0                       2.0000000    1.00000  50.0%     -    0s
     0     0    1.00000    0   19    2.00000    1.00000  50.0%     -    0s
     0     2    1.00000    0   19    2.00000    1.00000  50.0%     -    0s

Cutting planes:
  Gomory: 2
  Zero half: 1

Explored 1 nodes (106 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%