I have the following failure:
sage: P = graphs.PetersenGraph() ## line 539 ##
sage: P.tutte_polynomial() ## line 540 ##
x^9 + 6*x^8 + 21*x^7 + 56*x^6 + 12*x^5*y + y^6 + 114*x^5 + 70*x^4*y +
30*x^3*y^2 + 15*x^2*y^3 + 10*x*y^4 + 9*y^5 + 170*x^4 + 170*x^3*y +
105*x^2*y^2 + 65*x*y^3 + 35*y^4 + 180*x^3 + 240*x^2*y + 171*x*y^2 + 75*y^3
+ 120*x^2 + 168*x*y + 84*y^2 + 36*x + 36*y
sage: G = graphs.RandomGNP(10,0.6) ## line 549 ##
sage: G.tutte_polynomial()(1,1) == G.spanning_trees_count() ## line 550 ##
**********************************************************************
----------------------------------------------------------------------
sage -t --long src/sage/graphs/tutte_polynomial.py # Timed out
----------------------------------------------------------------------
which indicates progress in testing tutte_polynomial.py. When the file is
tested individually I get
sage -t --long src/sage/graphs/tutte_polynomial.py
[105 tests, 1621.87 s]
----------------------------------------------------------------------
All tests passed!
----------------------------------------------------------------------
Total time for all tests: 1622.0 seconds
cpu time: 26.9 seconds
cumulative wall time: 1621.9 seconds
The most recent previous test is with 7.2.rc2 where I have
sage -t --long src/sage/graphs/tutte_polynomial.py
[105 tests, 3.99 s]
And with my sage-on-gentoo install (7.4.beta2) I have
sage -t --long
/usr/lib/python2.7/site-packages/sage/graphs/tutte_polynomial.py
[105 tests, 3.52 s]
----------------------------------------------------------------------
All tests passed!
----------------------------------------------------------------------
Total time for all tests: 3.6 seconds
cpu time: 3.5 seconds
cumulative wall time: 3.5 seconds
So, something strange is going on?
On Friday, August 26, 2016 at 12:51:24 PM UTC-5, Volker Braun wrote:
>
> As always, you can get the latest beta version from the "develop" git
> branch. Alternatively, the self-contained source tarball is at
> http://www.sagemath.org/download-latest.html
>
>
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