Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:27:41 2012

Optimize a model with 261 rows, 205 columns and 855 nonzeros
Presolve time: 0.00s
Presolved: 261 rows, 205 columns, 855 nonzeros
Variable types: 0 continuous, 205 integer (205 binary)
Found heuristic solution: objective 54.0000000

Root relaxation: objective 0.000000e+00, 107 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   74   54.00000    0.00000   100%     -    0s
H    0     0                      42.0000000    0.00000   100%     -    0s
H    0     0                      40.0000000    0.00000   100%     -    0s
H    0     0                      39.0000000    0.00000   100%     -    0s
     0     0    0.50253    0   78   39.00000    0.50253  98.7%     -    0s
H    0     0                      36.0000000    0.50253  98.6%     -    0s
     0     0    0.55922    0   78   36.00000    0.55922  98.4%     -    0s
H    0     0                      35.0000000    0.55922  98.4%     -    0s
     0     0    0.55922    0   78   35.00000    0.55922  98.4%     -    0s
     0     2    0.61821    0   78   35.00000    0.61821  98.2%     -    0s
*   25    25              17      24.0000000    3.50093  85.4%  28.2    0s
*   49    36              16      23.0000000    3.57917  84.4%  22.9    0s
*   70    42              17      22.0000000    6.79260  69.1%  23.0    0s
*   82    38              10      20.0000000    6.82876  65.9%  22.4    0s

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

Explored 370 nodes (6847 simplex iterations) in 0.31 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.000000000000e+01, best bound 2.000000000000e+01, gap 0.0%