Gurobi 5.0.1 (linux64) logging started Sun Nov 18 08:26:57 2012

Optimize a model with 585 rows, 529 columns and 1989 nonzeros
Presolve removed 0 rows and 22 columns
Presolve time: 0.00s
Presolved: 585 rows, 507 columns, 1967 nonzeros
Variable types: 0 continuous, 507 integer (506 binary)
Found heuristic solution: objective 102.0000000

Root relaxation: objective 0.000000e+00, 270 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  205  102.00000    0.00000   100%     -    0s
H    0     0                      98.0000000    0.00000   100%     -    0s
H    0     0                      92.0000000    0.00000   100%     -    0s
H    0     0                      87.0000000    0.00000   100%     -    0s
     0     0    0.30918    0  207   87.00000    0.30918   100%     -    0s
H    0     0                      84.0000000    0.30918   100%     -    0s
     0     0    0.78531    0  209   84.00000    0.78531  99.1%     -    0s
H    0     0                      81.0000000    0.78531  99.0%     -    0s
     0     0    0.78633    0  212   81.00000    0.78633  99.0%     -    0s
     0     0    0.78633    0  210   81.00000    0.78633  99.0%     -    0s
H    0     0                      79.0000000    0.78633  99.0%     -    0s
H    0     0                      44.0000000    0.78633  98.2%     -    0s
H    0     0                      42.0000000    0.78633  98.1%     -    0s
     0     2    0.78836    0  210   42.00000    0.78836  98.1%     -    0s
H   27    27                      20.0000000    1.00000  95.0%  44.5    0s
  3049   112   18.99454   24  217   20.00000   16.84034  15.8%  27.7    5s

Explored 3271 nodes (89212 simplex iterations) in 5.19 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%