Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:52:15 2012

Optimize a model with 61 rows, 41 columns and 191 nonzeros
Presolve time: 0.00s
Presolved: 61 rows, 41 columns, 191 nonzeros
Variable types: 0 continuous, 41 integer (41 binary)
Found heuristic solution: objective 17.0000000

Root relaxation: objective 0.000000e+00, 16 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   11   17.00000    0.00000   100%     -    0s
H    0     0                      16.0000000    0.00000   100%     -    0s
     0     0    1.15517    0   20   16.00000    1.15517  92.8%     -    0s
H    0     0                      14.0000000    1.15517  91.7%     -    0s
H    0     0                      12.0000000    1.15517  90.4%     -    0s
     0     0    1.29630    0   17   12.00000    1.29630  89.2%     -    0s
     0     0    1.31985    0   29   12.00000    1.31985  89.0%     -    0s
     0     0    1.45549    0   23   12.00000    1.45549  87.9%     -    0s
     0     0    1.50958    0   27   12.00000    1.50958  87.4%     -    0s
     0     0    1.54693    0   33   12.00000    1.54693  87.1%     -    0s
     0     0    1.57915    0   34   12.00000    1.57915  86.8%     -    0s
     0     0    1.57915    0   34   12.00000    1.57915  86.8%     -    0s
     0     2    1.59338    0   34   12.00000    1.59338  86.7%     -    0s

Cutting planes:
  Gomory: 1
  Zero half: 10
  Mod-K: 3

Explored 32 nodes (430 simplex iterations) in 0.01 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%