Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:39:35 2012

Optimize a model with 155 rows, 114 columns and 499 nonzeros
Presolve time: 0.00s
Presolved: 155 rows, 114 columns, 499 nonzeros
Variable types: 0 continuous, 114 integer (114 binary)
Found heuristic solution: objective 35.0000000

Root relaxation: objective 0.000000e+00, 60 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   37   35.00000    0.00000   100%     -    0s
H    0     0                      28.0000000    0.00000   100%     -    0s
     0     0    0.80360    0   39   28.00000    0.80360  97.1%     -    0s
     0     0    0.85045    0   39   28.00000    0.85045  97.0%     -    0s
     0     0    0.98224    0   44   28.00000    0.98224  96.5%     -    0s
     0     0    1.04181    0   39   28.00000    1.04181  96.3%     -    0s
     0     0    1.05369    0   40   28.00000    1.05369  96.2%     -    0s
     0     2    1.13333    0   40   28.00000    1.13333  96.0%     -    0s
*   19    18              14      20.0000000    3.53333  82.3%  23.6    0s
*   32    19              10      18.0000000    3.61176  79.9%  21.3    0s
*   49    20               8      17.0000000    7.60000  55.3%  19.8    0s

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

Explored 133 nodes (2495 simplex iterations) in 0.10 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.700000000000e+01, best bound 1.700000000000e+01, gap 0.0%