Dear Roberto,
Thank you very much for helping me. I knew that I missed something because PLL is a powerful tool.
Kind regards, Victor
2013/3/28 Roberto Bagnara bagnara@cs.unipr.it
On 03/28/13 09:09, varza victor wrote:
My question is about this paper "The Parma Polyhedra Library: Toward a Complete Set of Numerical Abstractions for the Analysis and Verification" (http://bugseng.com/products/ppl/documentation/BagnaraHZ08SCP.pdf)which describes a method to find min and max for a linear programming problem. The author used LP_Problem class which I haven't found in the source code of the PPL. He also suggest (page 13) that the LP Solver is only in the CVS repository.
Hi Victor,
see the NEWS for version 0.10 (released on November 4, 2008):
o The class LP_Problem has been renamed MIP_Problem and now supports the solution of Mixed Integer (Linear) Programming problems. Support has been added for the incremental solution of MIP problems: it is now possible to add new space dimensions or new constraints to the feasible region, as well as change the objective function and the optimization mode, while still exploiting some of the computational work done before these changes. Support has also been added to change control parameters for the pricing method. This allows a choice between the steepest edge pricing method, either implemented with floating point numbers (default) or with integer coefficients, and the textbook pricing method.
Kind regards,
Roberto
2013/3/28 Roberto Bagnara <bagnara@cs.unipr.it <mailto:
bagnara@cs.unipr.it>>
On 03/27/13 18:39, varza victor wrote: > Hi, > My name is Victor Varza, I'm student at Politehnica University of > Bucharest and I working at a research about actual fuzzing testing > tools and methods.I want to use your library (PPL) to generate some > test case from a given constraint sistem. I have searched in your > papers to find how to do this but I haven't find something that > could help me. I'm working in C++ and I need some example to > generate data for a poliedrom. Could you please help me in thisway?
> > Best regards, > VIctor Dear Victor, I am not sure I understand. The PPL Git repository (and any source distribution for that matter) is packed with tests and sample code. The manual contains lots of examples. And you can download entire applications using the PPL following links from http://bugseng.com/products/ppl/applications Kind regards, Roberto -- Prof. Roberto Bagnara Applied Formal Methods Laboratory - University of Parma, Italy mailto:bagnara@cs.unipr.it <mailto:bagnara@cs.unipr.it> BUGSENG srl - http://bugseng.com mailto:roberto.bagnara@bugseng.com<mailto:roberto.bagnara@bugseng.com>
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-- Prof. Roberto Bagnara
Applied Formal Methods Laboratory - University of Parma, Italy mailto:bagnara@cs.unipr.it BUGSENG srl - http://bugseng.com mailto:roberto.bagnara@bugseng.com