Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:01:25 2013

Optimize a model with 473 rows, 18533 columns and 37023 nonzeros
Presolve time: 0.03s
Presolved: 473 rows, 18533 columns, 37023 nonzeros
Variable types: 18490 continuous, 43 integer (43 binary)

Root relaxation: objective 4.653424e+04, 903 iterations, 0.02 seconds

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

     0     0 46534.2351    0    7          - 46534.2351     -      -    0s
H    0     0                    49089.000000 46534.2351  5.20%     -    0s
     0     0 46782.6971    0    8 49089.0000 46782.6971  4.70%     -    0s
H    0     0                    48651.000000 46782.6971  3.84%     -    0s
     0     0 46872.9933    0    5 48651.0000 46872.9933  3.65%     -    0s
     0     0 46893.8080    0    6 48651.0000 46893.8080  3.61%     -    0s
H    0     0                    48647.000000 46893.8080  3.60%     -    0s
     0     0 46915.2411    0    5 48647.0000 46915.2411  3.56%     -    0s
H    0     0                    48519.000000 46915.2411  3.31%     -    0s
     0     0 46917.9786    0    3 48519.0000 46917.9786  3.30%     -    0s
H    0     0                    48474.000000 46917.9786  3.21%     -    0s
     0     0 46920.1604    0    3 48474.0000 46920.1604  3.21%     -    0s
H    0     0                    48380.000000 46920.1604  3.02%     -    0s
     0     0 46922.4902    0    3 48380.0000 46922.4902  3.01%     -    0s
H    0     0                    48378.000000 46922.4902  3.01%     -    0s
     0     0 46926.2568    0    5 48378.0000 46926.2568  3.00%     -    0s
H    0     0                    47575.000000 46926.2568  1.36%     -    0s
     0     0 46927.7309    0    3 47575.0000 46927.7309  1.36%     -    0s
     0     0 46928.3850    0    3 47575.0000 46928.3850  1.36%     -    0s
     0     0 46928.7020    0    3 47575.0000 46928.7020  1.36%     -    0s
H    0     0                    46968.000000 46928.7020  0.08%     -    0s
     0     0 46928.7020    0    4 46968.0000 46928.7020  0.08%     -    0s
     0     0 46928.7020    0    2 46968.0000 46928.7020  0.08%     -    0s
     0     0 46951.1833    0    3 46968.0000 46951.1833  0.04%     -    0s
     0     0 46967.6316    0    1 46968.0000 46967.6316  0.00%     -    0s

Cutting planes:
  Implied bound: 26
  Flow cover: 7

Explored 0 nodes (1926 simplex iterations) in 0.62 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.696800000000e+04, best bound 4.696763157895e+04, gap 0.0008%