FA-18284 / Time representation / Member archive

Unrounded timestamp drops residue or gives it wrong unit denominator · case 04

The decoded time state disagrees with the explicit regression oracle for exact.

Member previewVariant 4 · 3 implementations · 11 checks per implementation

Case contract

An elapsed-time converter maps incoming nonnegative source ticks to target ticks with exact rate numerator/denominator and retained residue. Each step adds source*p to prior numerator residue; emit quotient and preserve remainder. A reset invalidates old remainder. A phase origin belongs to emitted target coordinate. Report emitted ticks, new residue, cumulative target, exact unrounded cumulative coordinate and reset marker.

Why this case matters

Clock transfer and timestamp consumers require preserved coordinate, phase, validity and elapsed-time semantics.

One recorded failure

Sample boundary fixture

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

Boundary fixture	Actual	Expected	Outcome
fixture 1	`[111, 1, "111", true, 11, 1]`	`[111, 1, "334/3", true, 11, 1]`	Failed

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