Gurobi 5.0.1 (linux64) logging started Sun Nov 18 07:20:41 2012

Optimize a model with 523 rows, 489 columns and 1794 nonzeros
Presolve removed 0 rows and 22 columns
Presolve time: 0.00s
Presolved: 523 rows, 467 columns, 1772 nonzeros
Variable types: 0 continuous, 467 integer (466 binary)
Found heuristic solution: objective 87.0000000

Root relaxation: objective 0.000000e+00, 262 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  193   87.00000    0.00000   100%     -    0s
H    0     0                      76.0000000    0.00000   100%     -    0s
H    0     0                      75.0000000    0.00000   100%     -    0s
H    0     0                      70.0000000    0.00000   100%     -    0s
     0     0    0.38780    0  195   70.00000    0.38780  99.4%     -    0s
H    0     0                      67.0000000    0.38780  99.4%     -    0s
     0     0    0.81904    0  198   67.00000    0.81904  98.8%     -    0s
H    0     0                      63.0000000    0.81904  98.7%     -    0s
H    0     0                      56.0000000    0.81904  98.5%     -    0s
H    0     0                      53.0000000    0.81904  98.5%     -    0s
H    0     0                      51.0000000    0.81904  98.4%     -    0s
H    0     0                      48.0000000    0.81904  98.3%     -    0s
     0     2    0.81999    0  198   48.00000    0.81999  98.3%     -    0s
H   27    27                      45.0000000    1.00000  97.8%  45.4    0s
*   37    33              22      16.0000000    1.00000  93.8%  42.6    0s

Explored 1671 nodes (52090 simplex iterations) in 2.66 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.600000000000e+01, best bound 1.600000000000e+01, gap 0.0%