GEO-07 generator-set operations

Single-adapter, fixed-source evidence for an affine image, a correlated cancellation, and a constrained dependent sum. Representation algebra preserves shared factor identity. Coefficient evaluation is binary64 with no validated rounding enclosure.

Numerical outcomes and literal oracle

Authored physical H references and observed generator outputs
FixtureExpected physical relationObserved outputEvidence
Affine image of a two-factor boxPhysical H: 2 ≤ x ≤ 12center 7; generator columns [2, 3]; factor IDs horizontal, vertical8/8 verified batches, including one excluded warmup
Correlated cancellationPhysical H: x = 0center 0; shared history.0 column cancels to 08/8 verified batches, including one excluded warmup
Dependent sum with two distinct equalitiesPhysical H: x = 0, y = 0center [0, 0]; factor IDs u, v, w; two joined equalities8/8 verified batches, including one excluded warmup

Every fresh call checks feasible factor witnesses against the literal physical H relation, separate outside points, factor IDs and coefficients. The constrained case retains two distinct equality systems. An infeasible factor tuple may map inside a noninjective physical image; no false feasibility equivalence is asserted. Residual vectors are unavailable from this public API. These are three bounded examples, not a general correctness or complete-family proof.

Saved Release batch observations

One excluded warmup and seven measured batches per fixture, in alternating order; 5,000 freshly constructed, fully checked calls per batch. All 24 warmup and measured batches passed; there were zero observed failures. Values are verified-batch milliseconds, not isolated operation or per-call latency. The measured interval includes public construction and operations, the independent-sum rejection control, factor lift, literal H/identity/coefficient checks, and per-call nlohmann JSON result construction and assignment. It excludes process startup, JSONL serialization, saved-row verification, persistence and rendering.

Seven measured batches per fixture, milliseconds
FixtureCalls/batchSuccessful batchesMedian msRange ms
box image5,0007/737.55536.684–37.870
shared cancellation5,0007/730.66830.388–32.356
constrained sum5,0007/742.76041.641–45.262
box image37.87 ms36.68 msshared cancellation32.36 ms30.39 msconstrained sum45.26 ms41.64 msMeasured round 1–7 (within each fixture)
Each line shows seven batches of one fixture. Vertical scales are local to the fixture; the figure does not compare methods or imply a speedup.

Performance interpretation is exploratory and inconclusive. There is no comparator, source-mapped limiter profile, application-scale workload, or throughput/scalability claim. Internal phase timings and measured native thread count are unavailable.

Provenance and limits

Algorithm source db7906cb33ca40da55e31b9bf6b21cf7ffcc1ee4; reviewed harness 580da5368aac21b14d9e817da5937b4494a905aa; saved artifact geo07-9ef0d347291774da; raw JSONL SHA-256 768dae54cb5aabcec1445a2703df4ae45ed26145de7f52a012307b8d267dfd36; records SHA-256 4dc756380e87bd4e9342f55777bb2adb9a9aaeba62e9e142fb656d60d393d7c6; native manifest SHA-256 be4c075afa202348e35d800fcca3413f4501f58ce4faefde7cff2d394344366d. The artifact Git commit is the repository revision carrying these files and is separate from source and harness commits.

MSVC 19.44.35215.0, C++20 x64 Release /O2 /Ob2 /DNDEBUG. Host: Windows-11-10.0.22631-SP0; 12 logical processors. One sequential driver was requested; observed native thread count is unavailable. The saved concurrent-work note says: UTC 2026-10-16T13:16:02.6364135Z; i5-12400F 12 logical processors; CPU load=2%; processor idle=94%; recent stable WMI load samples=0,1,0,1%; active cmake/cl/link=none; resident MSBuild count=3; no other known local build active; ordinary background agents/processes uncontrolled.

Source fixture payloads and per-fixture hashes, the exact raw driver description, Release compiler/link settings, process status and raw trial bytes are downloadable below. The earlier collection-001 failed the provenance parser and is excluded from this report. The accepted collection-002 used the reviewed CRLF parser fix. Its collection-status file records acceptance for report review and a then-pending publication gate.

Download and audit

Versioned publication geo07-generator-sets-7890194735a81238f91e32d598a44eb48cca751ea6ec8af31c58910f89f0dbb6. Report envelope · Publication manifest.