Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:37:30 2012

Optimize a model with 21 rows, 21 columns and 71 nonzeros
Presolve time: 0.00s
Presolved: 21 rows, 21 columns, 71 nonzeros
Variable types: 0 continuous, 21 integer (21 binary)
Found heuristic solution: objective 3.0000000

Root relaxation: objective 0.000000e+00, 11 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    3.00000    0.00000   100%     -    0s
H    0     0                       2.0000000    0.00000   100%     -    0s
     0     0    0.21429    0   10    2.00000    0.21429  89.3%     -    0s
     0     0    1.00000    0   12    2.00000    1.00000  50.0%     -    0s
     0     0    1.00000    0   12    2.00000    1.00000  50.0%     -    0s
*    0     0               0       1.0000000    1.00000   0.0%     -    0s

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

Explored 0 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 1.000000000000e+00, best bound 1.000000000000e+00, gap 0.0%