Gurobi 5.0.1 (linux64) logging started Fri Jan 18 00:16:10 2013

Optimize a model with 520 rows, 4460 columns and 9500 nonzeros
Presolve removed 40 rows and 40 columns
Presolve time: 0.03s
Presolved: 480 rows, 4420 columns, 9360 nonzeros
Variable types: 4240 continuous, 180 integer (180 binary)

Root relaxation: objective 3.573401e+04, 456 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 35786.6170    0    4          - 35786.6170     -      -    0s
     0     0 35788.0697    0    4          - 35788.0697     -      -    0s
     0     0 35788.0697    0    4          - 35788.0697     -      -    0s
     0     0 35788.0697    0    4          - 35788.0697     -      -    0s
H    0     0                    36173.213881 35788.0697  1.06%     -    0s
     0     2 35811.6994    0    4 36173.2139 35811.6994  1.00%     -    0s

Cutting planes:
  Gomory: 3
  Flow cover: 8

Explored 34 nodes (1200 simplex iterations) in 0.32 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.617321388123e+04, best bound 3.617321388123e+04, gap 0.0%