build LLVM 18 SymCC: PASS build LLVM 17 SymCC: PASS py_compile: PASS ruff check: PASS git diff --check: PASS technology index: PASS diagram render and visual inspection: PASS Codex delivery verifier: PASS 15 RUN commands: PASS five-block writer/skip CFG and true/false polarity: PASS nested header/latch MemoryPhi identity: PASS integer comparison operand availability and dominance: PASS integer comparison scalar provenance, width equality, and constant range: PASS complete/store alias versus reachable-writer separation: PASS guarded witness Cartesian product and mutation rejection: PASS runtime byte-init authority and infeasible-path observation: PASS public coverage/solver/bug-yield/end-to-end speedup claim: intentionally absent