FIXTURE / feature-objective-lowest-cost

Cheapest eligible container

The lowest_cost objective picks the cheaper of two otherwise equivalent containers, or the engine rejects the objective explicitly.

COVERSselection
PROVEStotal_cost_minor
STATUSVALIDATED
PLACEMENTS FROM THE ENGINE RENDER INTO THIS SURFACE
RULES THIS FIXTURE EXERCISES

What it pins down.

INDEPENDENT VALIDATION

Checked again by an implementation that shares no code.

The validator recomputes the objective and every affected rule from the returned placements, with an implementation that shares no code with the solver. Inject a failure to see how a rejected result reports itself.

VALIDATEDfixture / feature-objective-lowest-cost
Bounds18 / 18
Collision0
Allowed rotations18 / 18
Support ratioPASS
Cumulative top loadPASS
Stack densityPASS
Centre of massPASS
Axle loadPASS
SOURCE-FIRST

The fixture id is the same everywhere.

The fixture id is the same in the conformance corpus, the field matrix and a bug report. Reproducing a defect means naming a file, not describing a screenshot.