HMmmmmmmmm O_O;; I wanted to rewrite it anyway :-D
No idea where it comes from. I will attempt to tell you today :-) Nathann On Saturday, October 13, 2012 9:15:06 AM UTC+2, Georgi Guninski wrote: > > Package nauty is not needed, attached is gra2() |for g in graphs(k)| > > > On Sat, Oct 13, 2012 at 09:59:56AM +0300, Georgi Guninski wrote: > > RuntimeError: Segmentation fault in Graph.subgraph_search() > > > > Tested on binary 5.3 from sagemath on Ubuntu 10.04 and on > > sagenb.org: http://sagenb.org/home/pub/5036. > > > > Many calls to Graph.subgraph_search() give Segmentation fault, > > though on different graphst. > > > > Here is a program that gives SEGV on usually different graphs: > > > > def gra1(): > > f=[graphs.CompleteGraph(2),graphs.CompleteGraph(1), 2 * > graphs.CompleteGraph(1)] > > for k in xrange(1,8): > > for g in graphs.nauty_geng("%s"%k): > > for h in f: > > print > 'h=Graph("%s");g=Graph("%s")'%(h.sparse6_string(),g.sparse6_string()) > > aa=g.subgraph_search(h) > > > > > > gra1() > > ... > > h=Graph(":@");g=Graph(":DoN") > > RuntimeError: Segmentation fault > > > > On different runs $h$ and $g$ might be different. > > > > On sagenb.org: > > h=Graph(":@");g=Graph(":CwN") > > Traceback (click to the left of this block for traceback) > > ... > > RuntimeError: Segmentation fault > > > > > > > > > > > def gra1(): > f=[graphs.CompleteGraph(2),graphs.CompleteGraph(1), 2 * > graphs.CompleteGraph(1)] > for k in xrange(1,8): > for g in graphs.nauty_geng("%s"%k): > for h in f: > print > 'h=Graph("%s");g=Graph("%s")'%(h.sparse6_string(),g.sparse6_string()) > aa=g.subgraph_search(h) > > > def gra2(): > f=[graphs.CompleteGraph(2),graphs.CompleteGraph(1), 2 * > graphs.CompleteGraph(1)] > for k in xrange(1,8): > for g in graphs(k): > for h in f: > print > 'h=Graph("%s");g=Graph("%s")'%(h.sparse6_string(),g.sparse6_string()) > aa=g.subgraph_search(h) > > > -- You received this message because you are subscribed to the Google Groups "sage-support" group. To post to this group, send email to sage-support@googlegroups.com. To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com. Visit this group at http://groups.google.com/group/sage-support?hl=en.
