Gurobi 5.0.1 (linux64) logging started Fri Jan 18 00:15:36 2013

Optimize a model with 44 rows, 116 columns and 378 nonzeros
Presolve removed 22 rows and 48 columns
Presolve time: 0.00s
Presolved: 22 rows, 68 columns, 294 nonzeros
Variable types: 60 continuous, 8 integer (8 binary)

Root relaxation: objective 3.881594e+03, 11 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    2          - 3881.59364     -      -    0s
     0     0 3881.86365    0    2          - 3881.86365     -      -    0s
     0     0 3887.35052    0    2          - 3887.35052     -      -    0s
     0     0 3887.73299    0    4          - 3887.73299     -      -    0s
     0     0 3888.04847    0    4          - 3888.04847     -      -    0s
     0     0 3888.13508    0    4          - 3888.13508     -      -    0s
     0     0 3888.15469    0    4          - 3888.15469     -      -    0s
     0     0 3891.10533    0    2          - 3891.10533     -      -    0s
*    0     0               0    3893.6704832 3893.67048   0.0%     -    0s

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

Explored 0 nodes (45 simplex iterations) in 0.01 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.893670483195e+03, best bound 3.893670483195e+03, gap 0.0%