Gurobi 5.0.1 (linux64) logging started Fri Jan 18 00:55:11 2013

Optimize a model with 48 rows, 182 columns and 742 nonzeros
Presolve removed 22 rows and 72 columns
Presolve time: 0.00s
Presolved: 26 rows, 110 columns, 618 nonzeros
Variable types: 100 continuous, 10 integer (10 binary)

Root relaxation: objective 3.881594e+03, 13 iterations, 0.00 seconds

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

     0     0 3881.59364    0    3          - 3881.59364     -      -    0s
     0     0 3881.86365    0    3          - 3881.86365     -      -    0s
     0     0 3885.98037    0    3          - 3885.98037     -      -    0s
     0     0 3886.35664    0    5          - 3886.35664     -      -    0s
     0     0 3886.58594    0    5          - 3886.58594     -      -    0s
     0     0 3886.59299    0    5          - 3886.59299     -      -    0s
     0     0 3886.60463    0    5          - 3886.60463     -      -    0s
     0     0 3888.92874    0    3          - 3888.92874     -      -    0s
*    0     0               0    3893.8380717 3893.83807   0.0%     -    0s

Cutting planes:
  Gomory: 1
  Implied bound: 2
  Flow cover: 2

Explored 0 nodes (57 simplex iterations) in 0.01 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.893838071713e+03, best bound 3.893838071713e+03, gap 0.0%