Gurobi 5.0.1 (linux64) logging started Sun Nov 18 08:26:52 2012

Optimize a model with 547 rows, 510 columns and 1875 nonzeros
Presolve removed 0 rows and 22 columns
Presolve time: 0.00s
Presolved: 547 rows, 488 columns, 1853 nonzeros
Variable types: 0 continuous, 488 integer (487 binary)
Found heuristic solution: objective 112.0000000

Root relaxation: objective 0.000000e+00, 295 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  211  112.00000    0.00000   100%     -    0s
H    0     0                      76.0000000    0.00000   100%     -    0s
H    0     0                      73.0000000    0.00000   100%     -    0s
     0     0    0.41606    0  213   73.00000    0.41606  99.4%     -    0s
H    0     0                      53.0000000    0.41606  99.2%     -    0s
     0     0    0.93765    0  218   53.00000    0.93765  98.2%     -    0s
H    0     0                      51.0000000    0.93765  98.2%     -    0s
     0     0    0.94067    0  219   51.00000    0.94067  98.2%     -    0s
     0     0    0.94067    0  219   51.00000    0.94067  98.2%     -    0s
     0     2    0.94306    0  219   51.00000    0.94306  98.2%     -    0s
*   56    35              30      18.0000000    2.77083  84.6%  32.6    0s

Cutting planes:
  Gomory: 4

Explored 1251 nodes (37802 simplex iterations) in 1.71 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%