search for: leino

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2007 Apr 09
0
[LLVMdev] New automated decision procedure for path-sensitive analysis
On 4/9/07, Domagoj Babic <babic.domagoj at gmail.com> wrote: > > > Traditionally, such analyses have been considered too expensive to be > practical, and were mostly an academic curiosity. The core of the > problem is the lack of adequate automated decision procedures which > could quickly determine whether a set of constraints is satisfiable or > not, and if it is
2007 Apr 09
2
[LLVMdev] New automated decision procedure for path-sensitive analysis
...d by the automated theorem > prover. > Almost every concept in the computer program except memory address has a > counterpart in mathematics. I have tried to simulate memory by arrays in > symbolic execution. But I found it is inadequate. There has been some progress lately (see Rustan Leino's work on the weakest precondition transformer) on handling arrays. Some automated theorem provers even support the theories of arrays (like CVC, Simplify, Yices,...). However, those thm provers do not have a very good support for modular arithmetic. In fact, they most often approximate bounded...
2003 May 16
4
How to handle call waiting?
Hello All, I need to be able to pass hook flash from an extension on a TDM400P to the analog line on an X100P FXS to use telco-provided call waiting feature. I know, i know, this is evil and I need to get more lines in a call group, but I dont think this is very appropriate for a home answering machine or a one-persone office. In any way, I do have callwaiting=yes in the zapata.conf. When I
2007 Apr 08
2
[LLVMdev] New automated decision procedure for path-sensitive analysis
Dear LLVMers, This email is intended for those interested in path-sensitive analysis, integer overflow analysis, static analysis, and (perhaps) loop invariant computation. Traditionally, such analyses have been considered too expensive to be practical, and were mostly an academic curiosity. The core of the problem is the lack of adequate automated decision procedures which could quickly