Gurobi 5.0.1 (linux64) logging started Thu Jan 17 23:43:52 2013

Optimize a model with 420 rows, 4260 columns and 8800 nonzeros
Presolve removed 40 rows and 40 columns
Presolve time: 0.02s
Presolved: 380 rows, 4220 columns, 8660 nonzeros
Variable types: 4140 continuous, 80 integer (80 binary)

Root relaxation: objective 3.573401e+04, 435 iterations, 0.01 seconds

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

     0     0 35734.0139    0    3          - 35734.0139     -      -    0s
     0     0 35763.9376    0    3          - 35763.9376     -      -    0s
     0     0 35774.4971    0    3          - 35774.4971     -      -    0s
     0     0 35780.7000    0    3          - 35780.7000     -      -    0s
     0     0 35786.9734    0    3          - 35786.9734     -      -    0s
     0     0 35792.2578    0    3          - 35792.2578     -      -    0s
     0     0 35792.6035    0    3          - 35792.6035     -      -    0s
     0     0 35792.8656    0    3          - 35792.8656     -      -    0s
     0     0 35792.8656    0    3          - 35792.8656     -      -    0s
H    0     0                    36169.916351 35792.8656  1.04%     -    0s
     0     2 35828.3728    0    3 36169.9164 35828.3728  0.94%     -    0s

Cutting planes:
  Flow cover: 22

Explored 16 nodes (1015 simplex iterations) in 0.32 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.616991635074e+04, best bound 3.616991635074e+04, gap 0.0%