Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:38:10 2012

Optimize a model with 57 rows, 54 columns and 194 nonzeros
Presolve time: 0.00s
Presolved: 57 rows, 54 columns, 194 nonzeros
Variable types: 0 continuous, 54 integer (54 binary)
Found heuristic solution: objective 13.0000000

Root relaxation: objective 0.000000e+00, 36 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   23   13.00000    0.00000   100%     -    0s
H    0     0                       9.0000000    0.00000   100%     -    0s
H    0     0                       6.0000000    0.00000   100%     -    0s
     0     0    0.37736    0   25    6.00000    0.37736  93.7%     -    0s
     0     0    0.89241    0   27    6.00000    0.89241  85.1%     -    0s
H    0     0                       3.0000000    0.89241  70.3%     -    0s
H    0     0                       2.0000000    0.89241  55.4%     -    0s
     0     0     cutoff    0         2.00000    1.00000  50.0%     -    0s

Cutting planes:
  Gomory: 4
  Mod-K: 3

Explored 0 nodes (145 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%