Gurobi 5.0.1 (linux64) logging started Sun Nov 18 07:40:37 2012

Optimize a model with 553 rows, 507 columns and 1887 nonzeros
Presolve removed 0 rows and 23 columns
Presolve time: 0.00s
Presolved: 553 rows, 484 columns, 1864 nonzeros
Variable types: 0 continuous, 484 integer (483 binary)
Found heuristic solution: objective 105.0000000

Root relaxation: objective 0.000000e+00, 280 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  195  105.00000    0.00000   100%     -    0s
H    0     0                      83.0000000    0.00000   100%     -    0s
     0     0    0.37637    0  196   83.00000    0.37637   100%     -    0s
H    0     0                      68.0000000    0.37637  99.4%     -    0s
     0     0    1.00000    0  201   68.00000    1.00000  98.5%     -    0s
H    0     0                      64.0000000    1.00000  98.4%     -    0s
     0     0    1.00000    0  202   64.00000    1.00000  98.4%     -    0s
     0     0    1.00000    0  198   64.00000    1.00000  98.4%     -    0s
H    0     0                      63.0000000    1.00000  98.4%     -    0s
H    0     0                      35.0000000    1.00000  97.1%     -    0s
     0     2    1.00000    0  198   35.00000    1.00000  97.1%     -    0s
*   65    48              41      24.0000000    1.00000  95.8%  42.8    0s
*  164   105              44      23.0000000    1.00000  95.7%  32.7    0s
*  260   140              21      22.0000000    1.12037  94.9%  37.0    0s

Cutting planes:
  Gomory: 4

Explored 2036 nodes (62790 simplex iterations) in 4.08 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.200000000000e+01, best bound 2.200000000000e+01, gap 0.0%