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| Content Provider | ACM Digital Library |
|---|---|
| Author | Kobayashi, Naoki Unno, Hiroshi Tabuchi, Naoshi |
| Abstract | We introduce higher-order, multi-parameter, tree transducers (HMTTs, for short), which are kinds of higher-order tree transducers that take input trees and output a (possibly infinite) tree. We study the problem of checking whether the tree generated by a given HMTT conforms to a given output specification, provided that the input trees conform to input specifications (where both input/output specifications are regular tree languages). HMTTs subsume higher-order recursion schemes and ordinary tree transducers, so that their verification has a number of potential applications to verification of functional programs using recursive data structures, including resource usage verification, string analysis, and exact type-checking of XML-processing programs. We propose a sound but incomplete verification algorithm for the HMTT verification problem: the algorithm reduces the verification problem to a model-checking problem for higher-order recursion schemes extended with finite data domains, and then uses (an extension of)Kobayashi's algorithm for model-checking recursion schemes. While the algorithm is incomplete (indeed, as we show in the paper, the verification problem is undecidable in general), it is sound and complete for a subclass of HMTTs called linear HMTTs . We have applied our HMTT verification algorithm to various program verification problems and obtained promising results. |
| Starting Page | 495 |
| Ending Page | 508 |
| Page Count | 14 |
| File Format | |
| ISBN | 9781605584799 |
| DOI | 10.1145/1706299.1706355 |
| Language | English |
| Publisher | Association for Computing Machinery (ACM) |
| Publisher Date | 2010-01-17 |
| Publisher Place | New York |
| Access Restriction | Subscribed |
| Subject Keyword | Higher-order tree transducers Higher-order recursion scheme Tree-processing programs Program verification |
| Content Type | Text |
| Resource Type | Article |
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