F320 real-MPI post-run checks, 2026-08-07 UTC

Environment:
  uid=1000
  mpirun=Open MPI 4.1.6
  execution_timeout_sec=1
  max_idle_sec=1
  shutdown_grace_sec=5
  finalize_grace_sec=5

single-master:
  temp_dir=/tmp/symcc-f320-single.v6rrKd
  exit_code=0
  corpus_regular_files=1
  standalone_work_directories=0
  digest_mismatch_log_matches=0

two-master-one-seed:
  temp_dir=/tmp/symcc-f320-one.YsQ6Gg
  exit_code=0
  corpus_regular_files=1
  standalone_work_directories=0
  digest_mismatch_log_matches=0

two-master-24-seeds:
  temp_dir=/tmp/symcc-f320-distribution.N4IYiT
  exit_code=0
  corpus_regular_files=24
  standalone_work_directories=0
  digest_mismatch_log_matches=0

two-master-shared-child:
  temp_dir=/tmp/symcc-f320-integrity.wE0oss
  exit_code=0
  corpus_regular_files=13
  standalone_work_directories=0
  digest_mismatch_log_matches=0