Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:09:23 2012

Optimize a model with 63 rows, 62 columns and 217 nonzeros
Presolve removed 0 rows and 2 columns
Presolve time: 0.00s
Presolved: 63 rows, 60 columns, 215 nonzeros
Variable types: 0 continuous, 60 integer (59 binary)
Found heuristic solution: objective 17.0000000
Found heuristic solution: objective 15.0000000

Root relaxation: objective 0.000000e+00, 41 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   24   15.00000    0.00000   100%     -    0s
H    0     0                       7.0000000    0.00000   100%     -    0s
H    0     0                       5.0000000    0.00000   100%     -    0s
     0     0    0.20833    0   25    5.00000    0.20833  95.8%     -    0s
H    0     0                       2.0000000    0.20833  89.6%     -    0s
     0     0    1.00000    0   29    2.00000    1.00000  50.0%     -    0s
     0     0    1.00000    0   27    2.00000    1.00000  50.0%     -    0s
     0     0    1.00000    0   30    2.00000    1.00000  50.0%     -    0s
     0     0    1.00000    0   20    2.00000    1.00000  50.0%     -    0s
     0     0    1.00000    0   15    2.00000    1.00000  50.0%     -    0s
     0     0    1.00000    0   17    2.00000    1.00000  50.0%     -    0s
     0     0    1.00000    0   12    2.00000    1.00000  50.0%     -    0s
     0     2    1.00000    0   12    2.00000    1.00000  50.0%     -    0s

Cutting planes:
  Gomory: 1
  Mod-K: 1

Explored 3 nodes (322 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%