Gurobi 5.0.1 (linux64) logging started Sun Nov 18 08:26:48 2012

Optimize a model with 587 rows, 530 columns and 1995 nonzeros
Presolve removed 0 rows and 21 columns
Presolve time: 0.00s
Presolved: 587 rows, 509 columns, 1974 nonzeros
Variable types: 0 continuous, 509 integer (508 binary)
Found heuristic solution: objective 110.0000000

Root relaxation: objective 0.000000e+00, 277 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  110.00000    0.00000   100%     -    0s
H    0     0                      83.0000000    0.00000   100%     -    0s
H    0     0                      81.0000000    0.00000   100%     -    0s
     0     0    0.45277    0  210   81.00000    0.45277  99.4%     -    0s
H    0     0                      65.0000000    0.45277  99.3%     -    0s
     0     0    1.07639    0  212   65.00000    1.07639  98.3%     -    0s
H    0     0                      52.0000000    1.07639  97.9%     -    0s
     0     0    1.24375    0  213   52.00000    1.24375  97.6%     -    0s
     0     0    1.24379    0  214   52.00000    1.24379  97.6%     -    0s
     0     2    1.24559    0  214   52.00000    1.24559  97.6%     -    0s
*   66    50              35      24.0000000    1.47174  93.9%  42.0    0s
*  106    67              27      23.0000000    1.47174  93.6%  41.0    0s
H  254   143                      22.0000000    1.48837  93.2%  44.0    0s
H  310   129                      21.0000000    1.50587  92.8%  44.7    0s

Cutting planes:
  Gomory: 13
  Zero half: 4

Explored 1078 nodes (46413 simplex iterations) in 4.07 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.100000000000e+01, best bound 2.100000000000e+01, gap 0.0%