Struct CounterExample

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pub struct CounterExample {
    pub quantifier: TermId,
    pub assignment: FxHashMap<Spur, TermId>,
    pub witnesses: Vec<TermId>,
    pub body_value: Option<TermId>,
    pub quality: f64,
    pub generation: u32,
}

Expand description

A counter-example to a quantified formula

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§quantifier: TermId

The quantifier this is a counterexample for

§assignment: FxHashMap<Spur, TermId>

Assignment to bound variables

§witnesses: Vec<TermId>

Witness terms (the concrete values assigned)

§body_value: Option<TermId>

Evaluation of the body under this assignment

§quality: f64

Quality score (higher = better counterexample)

§generation: u32

Generation at which this was found

Implementations§

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impl CounterExample

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pub fn new( quantifier: TermId, assignment: FxHashMap<Spur, TermId>, witnesses: Vec<TermId>, generation: u32, ) -> Self

Create a new counter-example

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pub fn to_instantiation(&self, result: TermId) -> Instantiation

Convert to an instantiation

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pub fn calculate_quality(&mut self, manager: &TermManager)

Calculate quality score based on term complexity

Trait Implementations§

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impl Clone for CounterExample

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fn clone(&self) -> CounterExample

Returns a duplicate of the value. Read more

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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more

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impl Debug for CounterExample

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

Auto Trait Implementations§

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impl UnwindSafe for CounterExample

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)

Performs copy-assignment from self to dest. Read more

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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more

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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more

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impl<T, U> Into for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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