# Goal 2 — real detection (the central gap). A steady 4-node SWIM mesh; one
# node is genuinely killed mid-run (peer_kill: ticks stopped, in-flight and
# future deliveries dropped), so a survivor's probe TRULY times out — not an
# injected death. After `probe_timeout + suspicion_timeout`, every survivor must
# converge on the killed node being Dead (`peer_detected_dead_within`, the mirror
# of `dead_peer_resurrects_within`).
# Expected verdict: pass-now.

name = "peer_kill_detection"
seed = 11
duration_ns = 50_000_000_000  # 50 s

[default_tick]
period_ns = 200_000_000

[default_link]
latency_ns = 5_000_000
jitter_stddev_ns = 1_000_000
loss_prob_ppm = 0
reorder_prob_ppm = 0
bandwidth_bps = 100_000_000
cold_dial_penalty_ns = 50_000_000
cache_warm_after_ns = 100_000_000
cache_invalidate_after_idle_ns = 30_000_000_000

# Brisk timing so detection (≈ 2·probe_timeout + suspicion_timeout) completes
# well inside the run: probe every 1 s, 1 s per phase, 5 s suspicion window.
[[peers]]
id = "a"
kind = "swim"
initial_state = "alive"
kind_config = { probe_interval_ns = 1_000_000_000, probe_timeout_ns = 1_000_000_000, suspicion_timeout_ns = 5_000_000_000 }
[[peers]]
id = "b"
kind = "swim"
initial_state = "alive"
kind_config = { probe_interval_ns = 1_000_000_000, probe_timeout_ns = 1_000_000_000, suspicion_timeout_ns = 5_000_000_000 }
[[peers]]
id = "c"
kind = "swim"
initial_state = "alive"
kind_config = { probe_interval_ns = 1_000_000_000, probe_timeout_ns = 1_000_000_000, suspicion_timeout_ns = 5_000_000_000 }
[[peers]]
id = "d"
kind = "swim"
initial_state = "alive"
kind_config = { probe_interval_ns = 1_000_000_000, probe_timeout_ns = 1_000_000_000, suspicion_timeout_ns = 5_000_000_000 }

# Full mesh — every survivor can directly probe the victim, so detection is a
# genuine probe timeout, not a topology artifact.
[[links]]
from = "a"
to = "b"
[[links]]
from = "b"
to = "a"
[[links]]
from = "a"
to = "c"
[[links]]
from = "c"
to = "a"
[[links]]
from = "a"
to = "d"
[[links]]
from = "d"
to = "a"
[[links]]
from = "b"
to = "c"
[[links]]
from = "c"
to = "b"
[[links]]
from = "b"
to = "d"
[[links]]
from = "d"
to = "b"
[[links]]
from = "c"
to = "d"
[[links]]
from = "d"
to = "c"

# Genuinely silence "d" at 15 s.
[[mutations]]
kind = "peer_kill"
at_ns = 15_000_000_000
peer = "d"

# Snapshots across the post-detection window (the killed peer "d" is excluded
# from snapshots, so only the survivors are observed).
[[snapshots]]
at_ns = 30_000_000_000
[[snapshots]]
at_ns = 36_000_000_000
[[snapshots]]
at_ns = 42_000_000_000

# Goal 2: every survivor converges on "d" = Dead within the detection window.
[[assertions]]
kind = "peer_detected_dead_within"
peer = "d"
after_ns = 15_000_000_000
within_ns = 30_000_000_000