Enum FlipOutcome 

pub enum FlipOutcome {
    Verified,
    ProvenUnflippable,
    SolverUnknown,
    NotPosed,
    RunFailed,
    Unconfirmed,
    AlreadyExplored,
}

What an attempted flip actually reached.

Variants

Verified

The reference engine took the opposite side at the same site, with the same prefix decisions, and the resulting path was new.

ProvenUnflippable

The flip query was UNSAT under the path prefix: no input flips it here.

SolverUnknown

The solver hit a bound before a verdict.

NotPosed

No verification run was spent, or no query was built. The loop records a walk that cannot replay the path as a gap instead of inventing a per-decision record; this value is the honest default for a consumer that records an attempt it could not pose.

RunFailed

The flipped run failed at the engine level.

Unconfirmed

The run failed to reproduce the walked prefix and take the opposite side at this decision: its log was too short, diverged before the decision, reached a different site, or took the same side. The walker and the engine disagree.

AlreadyExplored

The run did take the opposite side, but the path was already seen.

Trait Implementations

impl Clone for FlipOutcome

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for FlipOutcome

impl Debug for FlipOutcome

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

Formats the value using the given formatter.

impl Default for FlipOutcome

fn default() -> Self

Returns the “default value” for a type.

impl Eq for FlipOutcome

impl Ord for FlipOutcome

fn cmp(&self, other: &Self) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

fn clamp_to<R>(self, range: R) -> Self

where Self: Sized, R: ClampBounds<Self>,

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

Restrict a value to a certain range.

impl PartialEq for FlipOutcome

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl PartialOrd for FlipOutcome

fn partial_cmp(&self, other: &Self) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl StructuralPartialEq for FlipOutcome