Gurobi 5.0.1 (linux64) logging started Thu Jan 17 23:43:56 2013

Optimize a model with 400 rows, 4220 columns and 8760 nonzeros
Presolve removed 20 rows and 20 columns
Presolve time: 0.01s
Presolved: 380 rows, 4200 columns, 8640 nonzeros
Variable types: 4140 continuous, 60 integer (60 binary)

Root relaxation: objective 4.636776e+04, 433 iterations, 0.01 seconds

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

     0     0 46367.7551    0    4          - 46367.7551     -      -    0s
     0     0 46405.8203    0    4          - 46405.8203     -      -    0s
     0     0 46412.6573    0    4          - 46412.6573     -      -    0s
     0     0 46415.6273    0    4          - 46415.6273     -      -    0s
     0     0 46417.2187    0    4          - 46417.2187     -      -    0s
     0     0 46417.2187    0    4          - 46417.2187     -      -    0s
H    0     0                    46661.556328 46417.2187  0.52%     -    0s
     0     1 46640.0625    0    2 46661.5563 46640.0625  0.05%     -    0s
*    3     1               3    46650.426787 46650.4268   0.0%  35.0    0s

Cutting planes:
  Flow cover: 6

Explored 4 nodes (663 simplex iterations) in 0.11 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.665042678719e+04, best bound 4.665042678719e+04, gap 0.0%