Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:56:13 2013

Optimize a model with 13356 rows, 12996 columns and 51876 nonzeros
Presolve removed 482 rows and 0 columns
Presolve time: 0.07s
Presolved: 12874 rows, 12996 columns, 50912 nonzeros
Variable types: 12960 continuous, 36 integer (36 binary)

Root relaxation: objective 3.917484e+04, 2254 iterations, 0.14 seconds

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

     0     0 39174.8423    0    2          - 39174.8423     -      -    0s
H    0     0                    39286.000000 39174.8423  0.28%     -    0s
H    0     0                    39210.000000 39174.8423  0.09%     -    0s
     0     0 39182.3581    0    3 39210.0000 39182.3581  0.07%     -    0s

Cutting planes:
  Gomory: 1
  Flow cover: 2

Explored 0 nodes (2282 simplex iterations) in 0.39 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.921000000000e+04, best bound 3.921000000000e+04, gap 0.0%