Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:02:30 2013

Optimize a model with 484 rows, 19404 columns and 38764 nonzeros
Presolve time: 0.03s
Presolved: 484 rows, 19404 columns, 38764 nonzeros
Variable types: 19360 continuous, 44 integer (44 binary)

Root relaxation: objective 4.483045e+04, 705 iterations, 0.01 seconds

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

     0     0 44830.4510    0    5          - 44830.4510     -      -    0s
H    0     0                    46522.000000 44830.4510  3.64%     -    0s
H    0     0                    45096.000000 44830.4510  0.59%     -    0s
     0     0 44997.2697    0    3 45096.0000 44997.2697  0.22%     -    0s
     0     0 45000.6600    0    2 45096.0000 45000.6600  0.21%     -    0s
     0     0 45000.6600    0    5 45096.0000 45000.6600  0.21%     -    0s
     0     0 45000.6600    0    3 45096.0000 45000.6600  0.21%     -    0s
     0     0 45000.6600    0    3 45096.0000 45000.6600  0.21%     -    0s
     0     0 45002.1212    0    1 45096.0000 45002.1212  0.21%     -    0s
     0     0 45002.1212    0    1 45096.0000 45002.1212  0.21%     -    0s
     0     0 45008.9259    0    2 45096.0000 45008.9259  0.19%     -    0s
     0     0 45068.5253    0    2 45096.0000 45068.5253  0.06%     -    0s
     0     0 45073.1784    0    1 45096.0000 45073.1784  0.05%     -    0s

Cutting planes:
  Implied bound: 24
  Flow cover: 1

Explored 0 nodes (1532 simplex iterations) in 0.36 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.509600000000e+04, best bound 4.509600000000e+04, gap 0.0%