---
license: other
task_categories:
  - text-generation
  - feature-extraction
language:
  - en
tags:
  - formal-methods
  - verification
  - viper
size_categories:
  - 10K<n<100K
dataset_info:
  features:
  - {name: statement, dtype: string}
  - {name: proof, dtype: string}
  - {name: type, dtype: string}
  - {name: symbolic_name, dtype: string}
  - {name: library, dtype: string}
  - {name: filename, dtype: string}
  - {name: imports, list: string}
  - {name: deps, list: string}
  - {name: docstring, dtype: string}
  - {name: source_url, dtype: string}
  - {name: commit, dtype: string}
  splits:
  - {name: train, num_examples: 5819}
  config_name: default
configs:
- config_name: default
  data_files:
  - split: train
    path: data/train-*
---

# Viper

Declarations from Viper.

## Source

- Repository: https://github.com/viperproject/silver
- Commit: `efc0caa6f46ad79d49f337d8d640460a49cfd757`
- Files: 1459
- License: other

## Schema

| Column | Type | Description |
|--------|------|-------------|
| statement | string | Declaration signature/claim with the leading keyword removed (verbatim slice); the full declaration minus its proof |
| proof | string | Verbatim proof/body, empty if the declaration has none |
| type | string | Declaration keyword |
| symbolic_name | string | Declaration identifier |
| library | string | Sub-library |
| filename | string | Repository-relative source path |
| imports | list[string] | File-level `Require`/`Import` modules |
| deps | list[string] | Intra-corpus identifiers referenced |
| docstring | string | Preceding documentation comment, empty if absent |
| source_url | string | Upstream repository |
| commit | string | Upstream commit extracted |

## Statistics

- Entries: 5,819
- With proof: 4,894 (84.1%)
- With docstring: 0 (0.0%)
- Libraries: 106

### By type

| Type | Count |
|---|---|
| method | 3,328 |
| function | 1,095 |
| predicate | 551 |
| field | 459 |
| domain | 329 |
| adt | 57 |

## Example

```
BoolWellFoundedOrder
{
    //Booleans
    axiom bool_ax_dec{
        decreasing(false, true)
    }
    axiom bool_ax_bound{
        forall bool1: Bool :: {bounded(bool1)}
            bounded(bool1)
    }
}
```

- type: domain | symbolic_name: `BoolWellFoundedOrder` | src/main/resources/import/decreases/bool.vpr

## Use

Each declaration is split into a `statement` (signature/claim) and a `proof` (body) that are disjoint
and together form the complete declaration, for proof modeling, autoformalization, retrieval, and
dependency analysis via `deps`.

## Citation

```bibtex
@misc{viper_dataset,
  title  = {Viper},
  author = {Norton, Charles},
  year   = {2026},
  note   = {Extracted from https://github.com/viperproject/silver, commit efc0caa6f46a},
  url    = {https://huggingface.co/datasets/phanerozoic/Viper}
}
```