Gurobi 5.0.1 (linux64) logging started Mon Feb  4 16:03:31 2013

Optimize a model with 165 rows, 121 columns and 440 nonzeros
Presolve removed 55 rows and 55 columns
Presolve time: 0.00s
Presolved: 110 rows, 66 columns, 330 nonzeros
Variable types: 11 continuous, 55 integer (55 binary)
Found heuristic solution: objective 2699.0000000

Root relaxation: objective 5.670000e+02, 36 iterations, 0.00 seconds

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

     0     0  567.00000    0   27 2699.00000  567.00000  79.0%     -    0s
H    0     0                    2269.0000000  567.00000  75.0%     -    0s
     0     0  765.20732    0   21 2269.00000  765.20732  66.3%     -    0s
     0     0  772.72110    0   22 2269.00000  772.72110  65.9%     -    0s
     0     0  776.33516    0   24 2269.00000  776.33516  65.8%     -    0s
     0     0  779.85132    0   24 2269.00000  779.85132  65.6%     -    0s
     0     0  781.38704    0   30 2269.00000  781.38704  65.6%     -    0s
     0     0  781.38704    0   30 2269.00000  781.38704  65.6%     -    0s
H    0     0                    1639.0000000  781.38704  52.3%     -    0s
     0     2  793.12335    0   30 1639.00000  793.12335  51.6%     -    0s
*  533   263              14    1632.0000000  996.38013  38.9%   4.8    0s
H  707   306                    1625.0000000 1018.00000  37.4%   4.6    0s
H  848   335                    1581.0000000 1018.00000  35.6%   5.3    0s
*  913   336              25    1575.0000000 1018.00000  35.4%   5.3    0s

Cutting planes:
  Gomory: 10
  Implied bound: 7
  MIR: 17

Explored 8222 nodes (23960 simplex iterations) in 0.62 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.575000000000e+03, best bound 1.575000000000e+03, gap 0.0%