Allocate graph: V=625000 E=5000000 flag = 1
Total time: 11.97  Section time: 11.97  (Reading graph from file)
Generated graph: G->V = 625000  G->E = 4223371
Total time: 11.98  Section time: 0.01  (Making adjacency lists for the graph)
Running Kruskal... 
Total time: 17.29  Section time: 5.31  (First Kruskal)
Total time: 17.29  Section time: 0.00  (Resetting tree struct)
Total time: 21.73  Section time: 4.44  (Second Kruskal)
Nodes: 625000  Edges: 625000
MST weight = 507155604117.000000
Total time: 21.74  Section time: 0.01  (Printing tree)