Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:56:09 2013

Optimize a model with 13356 rows, 12996 columns and 51876 nonzeros
Presolve removed 591 rows and 0 columns
Presolve time: 0.07s
Presolved: 12765 rows, 12996 columns, 50694 nonzeros
Variable types: 12960 continuous, 36 integer (36 binary)

Root relaxation: objective 4.507774e+04, 2554 iterations, 0.15 seconds

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

     0     0 45077.7430    0    2          - 45077.7430     -      -    0s
H    0     0                    45135.000000 45077.7430  0.13%     -    0s
H    0     0                    45110.000000 45077.7430  0.07%     -    0s
     0     0 45079.1948    0    3 45110.0000 45079.1948  0.07%     -    0s
     0     0 45079.8796    0    3 45110.0000 45079.8796  0.07%     -    0s
     0     0     cutoff    0      45110.0000 45110.0000   0.0%     -    0s

Cutting planes:
  Gomory: 1
  Flow cover: 3

Explored 0 nodes (2588 simplex iterations) in 0.45 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.511000000000e+04, best bound 4.511000000000e+04, gap 0.0%