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Some queries with plus or star quantifiers miss results.
Given the following Python program `debug.py`:
```python
def start(a, b):
x=a
f()
```
And the following query file `debug.…
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I want to prove [leftpad](https://github.com/hwayne/lets-prove-leftpad) with flux, and the corresponding property involves indexing into a vector and ensuring that the value at the index has a correct…
suhr updated
7 months ago
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I don't remember why this example with `assert(false)` is in the valid benchmarks?
https://github.com/epfl-lara/stainless/blob/5b7b3a0c01c23486fea44abb2255f0963a242708/frontends/benchmarks/verificati…
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## Flavor Request
Please support [ICU](https://unicode-org.github.io/icu/userguide/strings/regexp.html). This is the format supported natively by [Apple devices](https://en.wikipedia.org/wiki/Found…
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I expected the `/l{n,}/` to either match `n` or more repetition of the literal, or to emit an error during generation.
Grammar:
```js
module.exports = grammar({
name: 'foobar',
extras: $ …
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Hi there,
this is a kind of mix between question and feature request.
I'm interested in a regex feature called [possessive quantifiers](https://www.regular-expressions.info/possessive.html). In …
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In the Quantifiers chapter, the proj₁ imported from Data.Product
is not compatible with the Σ defined in the chapter. But in
exercise Bin-isomorphism, it is suggested to prove a lemma of this
type…
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CBMC version: 5.67.0
Operating system: N/A
# Problem description
In the `assigns` clause of loop-contracts and function-contracts, there are cases where we may need some kind of quantifiers…
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Now that we can mark functions as frozen (#688), we can write mutual blocks with one frozen function and one non-frozen function, allowing definitions like:
```
mutual {
~fun f(x) { x }
fun …
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The `#[open_inv]` attribute can be applied to functions, function arguments, and fields to declare them as having an open type invariant. Concretely:
- on functions: completely ignore type invariant…