Abstract
Reasoning about floating-point numbers is notoriously difficult, owing to the lack of convenient algebraic properties such as associativity. This poses a substantial challenge for program analysis and verification tools which rely on precise floating-point constraint solving. Currently, interval methods in this domain often exhibit slow convergence even on simple examples. We present a new theorem supporting efficient computation of exact bounds of the intersection of a rectangle with the preimage of an interval under floating-point addition, in any radix or rounding mode. We thus give an efficient method of deducing optimal bounds on the components of an addition, solving the convergence problem.
| Original language | English |
|---|---|
| Title of host publication | Proceedings - 26th IEEE Symposium on Computer Arithmetic, ARITH-26 (2019) |
| Editors | Naofumi Takagi, Sylvie Boldo, Martin Langhammer |
| Place of Publication | Piscataway NJ USA |
| Publisher | IEEE, Institute of Electrical and Electronics Engineers |
| Pages | 159-166 |
| Number of pages | 8 |
| ISBN (Electronic) | 9781728133669 |
| ISBN (Print) | 9781728133676 |
| DOIs | |
| Publication status | Published - 2019 |
| Event | IEEE Symposium on Computer Arithmetic 2019 - Kyoto, Japan Duration: 10 Jun 2019 → 12 Jun 2019 Conference number: 26th http://www.lab3.kuis.kyoto-u.ac.jp/arith26/ https://ieeexplore.ieee.org/xpl/conhome/8864032/proceeding (Proceedings) |
Conference
| Conference | IEEE Symposium on Computer Arithmetic 2019 |
|---|---|
| Abbreviated title | ARITH 2019 |
| Country/Territory | Japan |
| City | Kyoto |
| Period | 10/06/19 → 12/06/19 |
| Internet address |
Keywords
- addition
- arbitrary radix
- bound analysis
- floating point arithmetic