FA-12292 / Battery state accounting / Member archive
Charging loss is applied to withdrawals · case 02
A shared efficiency transform shrinks both incoming and outgoing charge.
Case contract
Return initial plus half of incoming minus outgoing; incoming is even, all balances remain nonnegative.
Why this case matters
An explicit synthetic battery bookkeeping model isolates this state-accounting error; it is not an engineering prediction or safety procedure.
One recorded failure
Sample boundary fixtureThis sample comes from the broken implementation of a controlled reproducer.
| Boundary fixture | Actual | Expected | Outcome |
|---|---|---|---|
| withdrawal | 36 | 32 | Failed |
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