Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:21:19 2012

Optimize a model with 241 rows, 187 columns and 787 nonzeros
Presolve time: 0.00s
Presolved: 241 rows, 187 columns, 787 nonzeros
Variable types: 0 continuous, 187 integer (187 binary)
Found heuristic solution: objective 52.0000000

Root relaxation: objective 0.000000e+00, 114 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   66   52.00000    0.00000   100%     -    0s
H    0     0                      35.0000000    0.00000   100%     -    0s
     0     0    0.51613    0   67   35.00000    0.51613  98.5%     -    0s
H    0     0                      33.0000000    0.51613  98.4%     -    0s
     0     0    1.00000    0   69   33.00000    1.00000  97.0%     -    0s
H    0     0                      31.0000000    1.00000  96.8%     -    0s
     0     0    1.00000    0   70   31.00000    1.00000  96.8%     -    0s
     0     0    1.00000    0   69   31.00000    1.00000  96.8%     -    0s
H    0     0                      30.0000000    1.00000  96.7%     -    0s
     0     2    1.00000    0   69   30.00000    1.00000  96.7%     -    0s
*   27    27              15      20.0000000    3.19310  84.0%  29.5    0s
*   83    61              15      19.0000000    4.70957  75.2%  24.2    0s
*  210   102              13      18.0000000    6.58879  63.4%  23.9    0s

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

Explored 1664 nodes (29570 simplex iterations) in 0.89 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.800000000000e+01, best bound 1.800000000000e+01, gap 0.0%