FAILURE MAP
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Bound constrained termination rejects a valid boundary optimum · case 02

Bound constrained termination rejects a valid boundary optimum.

Member previewVariant 2 · 3 implementations · 7 checks per implementation

Case contract

Given feasible scalar x and lo<=hi, return whether the unit-step projected gradient mapping is exactly zero.

Why this case matters

This deterministic solver-step model isolates an algorithmic invariant used by iterative optimization implementations.

One recorded failure

Sample boundary fixture

This sample comes from the broken implementation of a controlled reproducer.

Boundary fixtureActualExpectedOutcome
lower optimumfalsetrueFailed

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