"""Bounded integer from a cross-file callee is used in an interpolated shell string. `safe_index()` lives in another file and returns a literal 42. The SSA summary's `return_abstract` captures `exact(42)`; the abstract transfer channel mirrors it as a per-parameter Clamped transfer so summary-path resolution synthesises the bound at the caller. The SHELL_ESCAPE dual-gate suppression then fires because every tainted leaf flowing into the subprocess call is proven Int-typed and bounded. """ import subprocess from helper import safe_index def run(): idx = safe_index() subprocess.run(["/bin/echo", f"index={idx}"], shell=False)