Gurobi 5.0.1 (linux64) logging started Sun Nov 18 08:25:25 2012

Optimize a model with 619 rows, 546 columns and 2091 nonzeros
Presolve removed 0 rows and 25 columns
Presolve time: 0.00s
Presolved: 619 rows, 521 columns, 2066 nonzeros
Variable types: 0 continuous, 521 integer (520 binary)
Found heuristic solution: objective 109.0000000

Root relaxation: objective 0.000000e+00, 308 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  209  109.00000    0.00000   100%     -    0s
H    0     0                      80.0000000    0.00000   100%     -    0s
     0     0    0.32234    0  211   80.00000    0.32234   100%     -    0s
H    0     0                      73.0000000    0.32234   100%     -    0s
     0     0    0.81704    0  214   73.00000    0.81704  98.9%     -    0s
H    0     0                      67.0000000    0.81704  98.8%     -    0s
H    0     0                      64.0000000    0.81704  98.7%     -    0s
     0     0    0.81704    0  213   64.00000    0.81704  98.7%     -    0s
H    0     0                      60.0000000    0.81704  98.6%     -    0s
     0     0    0.81704    0  213   60.00000    0.81704  98.6%     -    0s
H    0     0                      59.0000000    0.81704  98.6%     -    0s
     0     2    0.84330    0  213   59.00000    0.84330  98.6%     -    0s
H   27    27                      51.0000000    1.00000  98.0%  44.2    0s
*   48    41              29      28.0000000    1.00000  96.4%  38.8    0s
  2396   514   26.69892   25  240   28.00000   17.86275  36.2%  35.0    5s
  5577   504   26.60326   24  235   28.00000   21.90244  21.8%  30.1   10s

Explored 8186 nodes (226586 simplex iterations) in 13.46 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.800000000000e+01, best bound 2.800000000000e+01, gap 0.0%