The turn-54 End Turn stopped on a Von Neumann encounter at Gallandro. That is
the workload the finding says does not exist and lane J asks for: every
encounter measured so far had the no-battle flag set, so the combat resolver
has never run under an instrument.
Three falsifications, and the interesting one is the third: a non-zero cost
that does not appear under ApplyEncounterResult means combat proper is drawing,
which nothing hooks, and the bracket residual goes positive for the first time.
Written with the run in flight at turn 34. min_life is decrementing by exactly
1 per turn (43 down to 30), so the traffic term contributes nothing on this map
and the oldest mortal line expires 30 turns out.
Four ways it can be wrong, each with its own symptom. Every prediction this
lane has made so far compared 0 against 0; this one does not.
Eight End Turns across two saves. A turn costs 18-22 generator words, all of
it inside StrategyServer::ProcessTurn; the tail costs 0; the residual outside
the two drivers is exactly 0 on every complete bracket. The generator does not
move between turns at all, so the interval a standalone has to reproduce is
closed at both ends.
Checked against the save files, not just against itself: the turn-6 autosave
pair gives 18 words read from the two Sim.RNG blobs, with twists == 0 -- so
that number never passes through a twist implementation and the agreement is
about the game rather than about two copies of one algorithm.
P6 was wrong. S+0x8 advances 12-14 times per turn, not twice; both drivers are
hooked so the other increments come from somewhere unidentified. Lane K's 'at
least twice' was right and its conclusion is strengthened.
Node-line decay still has not fired, and the hook now says how far away it is
rather than that it did not happen: 51 of 53 lines are permanent, the mortal
ones are dug ~1/turn by the Zuul, and each is ~40 turns from expiry.
The turn's RNG cost has never been measured end to end. combat-done-tail.md
found two draw sites in OnAllCombatDone_Tail that nothing models and that both
run before the autosave, so a reimplementation that reproduces both ProcessTurn
functions exactly still diverges the first turn a node line expires.
RngLedger recovers an ABSOLUTE WORD POSITION from (mt[624], left) alone, by
indexing the forward-only chain of blocks the twist generates. Word deltas
between any two observations are then exact -- across twists, across NextInt
rejection loops, and across draws nobody hooked. That last point is not
theoretical: the image has four draw entry points, one of which (NextUInt
0x004f7670) appears in no previous lane's primitive set, plus inlined draws in
twelve functions. A primitive-counting hook would have undercounted silently.
Six nested trace hooks bracket one End Turn between the two autosaves and
attribute the words: the two turn drivers, the two tail phases that can draw,
and ProcessNodeSpaceTravel because it runs twice a turn. NodeLineDecay carries
a real model -- one word per expired node line under NodePath::RemainingLife --
so compare mode checks the count rather than reporting it.
Corrections from the instruction stream, both load-bearing:
* StrategyHost::Autosave is ret 8, not ret 4, and returns the std::string* in
EAX. A void-returning hook would have dropped it at both call sites.
* node-line decay's 0x20000-fleet skip runs AFTER the Chance(0.5f) call, not
before, so it cannot change the draw count -- combat-done-tail.md reads as
if it gated the roll.
fpu.sample_turn releases StrategyServer::ProcessTurn, which the fpu sampler and
this ledger both want and MinHook grants to one of them. Default on: no
existing run changes behaviour.
Host ctest 37/37; shim cross-built on CT111; clean-room check OK.
Six nested trace hooks bracket one End Turn between the two autosaves and
attribute every word the strategic generator consumes to a phase. Position is
recovered from (mt[624], left) alone via a forward-only block chain, so word
deltas are exact across twists and across NextInt rejection loops.
Eight predictions with their falsifications, including the two that matter:
the tail runs on a no-combat turn (lane K inferred it), and a quiet turn's
residual outside the two drivers is zero.
