Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:20:52 2012

Optimize a model with 243 rows, 187 columns and 792 nonzeros
Presolve time: 0.00s
Presolved: 243 rows, 187 columns, 792 nonzeros
Variable types: 0 continuous, 187 integer (187 binary)
Found heuristic solution: objective 56.0000000

Root relaxation: objective 0.000000e+00, 89 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   56.00000    0.00000   100%     -    0s
H    0     0                      40.0000000    0.00000   100%     -    0s
H    0     0                      38.0000000    0.00000   100%     -    0s
     0     0    0.63462    0   67   38.00000    0.63462  98.3%     -    0s
H    0     0                      36.0000000    0.63462  98.2%     -    0s
     0     0    1.00000    0   69   36.00000    1.00000  97.2%     -    0s
     0     0    1.00000    0   71   36.00000    1.00000  97.2%     -    0s
     0     0    1.00000    0   68   36.00000    1.00000  97.2%     -    0s
H    0     0                      32.0000000    1.00000  96.9%     -    0s
     0     2    1.00000    0   68   32.00000    1.00000  96.9%     -    0s
*   41    34              25      24.0000000    3.17909  86.8%  22.6    0s
H   54    37                      23.0000000    3.97451  82.7%  23.9    0s
*  102    61              18      22.0000000    5.78639  73.7%  23.7    0s
*  191   119              16      21.0000000    7.50108  64.3%  24.9    0s
*  254   113              13      20.0000000    7.58970  62.1%  24.1    0s
*  356   114              12      19.0000000    8.99272  52.7%  23.4    0s

Cutting planes:
  Gomory: 3
  Zero half: 1

Explored 1079 nodes (19570 simplex iterations) in 0.56 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.900000000000e+01, best bound 1.900000000000e+01, gap 0.0%