Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:39:04 2012

Optimize a model with 127 rows, 97 columns and 412 nonzeros
Presolve time: 0.00s
Presolved: 127 rows, 97 columns, 412 nonzeros
Variable types: 0 continuous, 97 integer (97 binary)
Found heuristic solution: objective 31.0000000

Root relaxation: objective 0.000000e+00, 49 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   34   31.00000    0.00000   100%     -    0s
H    0     0                      18.0000000    0.00000   100%     -    0s
H    0     0                      15.0000000    0.00000   100%     -    0s
     0     0    0.60714    0   35   15.00000    0.60714  96.0%     -    0s
     0     0    1.15049    0   39   15.00000    1.15049  92.3%     -    0s
     0     0    1.18750    0   37   15.00000    1.18750  92.1%     -    0s
     0     0    1.27343    0   40   15.00000    1.27343  91.5%     -    0s
     0     0    1.32524    0   42   15.00000    1.32524  91.2%     -    0s
     0     0    1.33793    0   44   15.00000    1.33793  91.1%     -    0s
     0     2    1.39516    0   44   15.00000    1.39516  90.7%     -    0s
H   27    11                      12.0000000    3.14815  73.8%  13.8    0s

Cutting planes:
  Gomory: 3
  Zero half: 4

Explored 71 nodes (1078 simplex iterations) in 0.04 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.200000000000e+01, best bound 1.200000000000e+01, gap 0.0%