# --- PHI 1: HALF-OPEN PREVENTION ---

tcp-phi1-drop-violate:
  - command: python src/main.py --model=tests/tcp/tcp-phi1.pml --attacker=drop --chan=AtoB --output=temp.pml --eval --cleanup --mem=1
  - intended: property violation
  - explanation: Dropping A's FIN allows A to eventually time out to Closed while B remains stranded in Established.

tcp-phi1-drop-pass:
  - command: python src/main.py --model=tests/tcp/tcp-phi1.pml --attacker=drop --chan=AtoB --output=temp.pml --eval --cleanup --mem=0
  - intended: no violation
  - explanation: Attacker has 0 memory budget; normal teardown prevents half-open states.

tcp-phi1-replay-violate:
  - command: python src/main.py --model=tests/tcp/tcp-phi1.pml --attacker=replay --chan=AtoB --output=temp.pml --eval --cleanup --mem=1
  - intended: property violation
  - explanation: Replaying a stale SYN from A forces B into an Established state while A is completely Closed.

tcp-phi1-replay-pass:
  - command: python src/main.py --model=tests/tcp/tcp-phi1.pml --attacker=replay --chan=BtoA --output=temp.pml --eval --cleanup --mem=1
  - intended: no violation
  - explanation: Replaying B's final teardown ACK is idempotent and harmlessly dropped by A, maintaining state sync.

tcp-phi1-reorder-violate:
  - command: python src/main.py --model=tests/tcp/tcp-phi1.pml --attacker=reorder --chan=AtoB --output=temp.pml --eval --cleanup --mem=2
  - intended: property violation
  - explanation: Reordering A's SYN and FIN segments desynchronizes B's state machine, triggering a half-open state.

tcp-phi1-reorder-pass:
  - command: python src/main.py --model=tests/tcp/tcp-phi1.pml --attacker=reorder --chan=AtoB --output=temp.pml --eval --cleanup --mem=1
  - intended: no violation
  - explanation: Reorder attacker requires at least mem=2 to swap messages; mem=1 is insufficient.


# --- PHI 3: NO DEADLOCKS ---

tcp-phi3-drop-violate:
  - command: python src/main.py --model=tests/tcp/tcp-phi3.pml --attacker=drop --chan=BtoA --output=temp.pml --eval --cleanup --mem=1
  - intended: acceptance cycle
  - explanation: Dropping B's SYN-ACK stalls A in SynSent and B in SynRec indefinitely without timeout recovery.

tcp-phi3-drop-pass:
  - command: python src/main.py --model=tests/tcp/tcp-phi3.pml --attacker=drop --chan=AtoB --output=temp.pml --eval --cleanup --mem=0
  - intended: no violation
  - explanation: Zero memory prevents dropping, allowing standard timers and handshakes to resolve without deadlocks.

tcp-phi3-replay-violate:
  - command: python src/main.py --model=tests/tcp/tcp-phi3.pml --attacker=replay --chan=AtoB --output=temp.pml --eval --cleanup --mem=1
  - intended: acceptance cycle
  - explanation: Replaying FIN messages traps the receiver in an infinite loop of CloseWait/LastAck processing.

tcp-phi3-replay-pass:
  - command: python src/main.py --model=tests/tcp/tcp-phi3.pml --attacker=replay --chan=BtoA --output=temp.pml --eval --cleanup --mem=1
  - intended: no violation
  - explanation: Replaying an ACK during the Established state is cleanly ignored and does not halt liveness progress.

tcp-phi3-reorder-violate:
  - command: python src/main.py --model=tests/tcp/tcp-phi3.pml --attacker=reorder --chan=AtoB,BtoA --output=temp.pml --eval --cleanup --mem=2
  - intended: acceptance cycle
  - explanation: Swapping handshake messages (ACK before SYN) deadlocks both endpoints in intermediate waiting states.

tcp-phi3-reorder-pass:
  - command: python src/main.py --model=tests/tcp/tcp-phi3.pml --attacker=reorder --chan=AtoB --output=temp.pml --eval --cleanup --mem=1
  - intended: no violation
  - explanation: Attacker lacks the mem=2 budget required to execute a reorder attack.


# --- PHI 5: SYN_RECEIVED RESOLUTION ---

tcp-phi5-drop-violate:
  - command: python src/main.py --model=tests/tcp/tcp-phi5.pml --attacker=drop --chan=AtoB --output=temp.pml --eval --cleanup --mem=1
  - intended: acceptance cycle
  - explanation: Dropping the final ACK of the 3-way handshake prevents B from ever resolving SynRec to Established.

tcp-phi5-drop-pass:
  - command: python src/main.py --model=tests/tcp/tcp-phi5.pml --attacker=drop --chan=AtoB --output=temp.pml --eval --cleanup --mem=0
  - intended: no violation
  - explanation: Without drop capabilities, the ACK arrives normally, resolving the SynRec state.

tcp-phi5-replay-violate:
  - command: python src/main.py --model=tests/tcp/tcp-phi5.pml --attacker=replay --chan=AtoB --output=temp.pml --eval --cleanup --mem=1
  - intended: acceptance cycle
  - explanation: Replaying a SYN forces B to repeatedly trigger simultaneous open logic, preventing resolution.

tcp-phi5-replay-pass:
  - command: python src/main.py --model=tests/tcp/tcp-phi5.pml --attacker=replay --chan=AtoB --output=temp.pml --eval --cleanup --mem=1
  - intended: no violation
  - explanation: Replaying the final ACK simply provides redundant resolution signals, which satisfies the property.

tcp-phi5-reorder-violate:
  - command: python src/main.py --model=tests/tcp/tcp-phi5.pml --attacker=reorder --chan=AtoB --output=temp.pml --eval --cleanup --mem=2
  - intended: acceptance cycle
  - explanation: Delivering A's final ACK before B has fully entered SynRec confuses the state machine, stalling resolution.

tcp-phi5-reorder-pass:
  - command: python src/main.py --model=tests/tcp/tcp-phi5.pml --attacker=reorder --chan=AtoB --output=temp.pml --eval --cleanup --mem=1
  - intended: no violation
  - explanation: Insufficient memory to reorder packets; handshakes process chronologically.


# --- PHI 6: STRICT CLOSING TRANSITIONS ---

tcp-phi6-drop-violate:
  - command: python src/main.py --model=tests/tcp/tcp-phi6.pml --attacker=drop --chan=AtoB --output=temp.pml --eval --cleanup --mem=1
  - intended: property violation
  - explanation: Dropping the ACK to the FIN causes a timeout that bypasses the strict Closing-to-Closed state sequence.

tcp-phi6-drop-pass:
  - command: python src/main.py --model=tests/tcp/tcp-phi6.pml --attacker=drop --chan=AtoB --output=temp.pml --eval --cleanup --mem=0
  - intended: no violation
  - explanation: Normal termination proceeds; Closing transitions accurately based on protocol rules.

tcp-phi6-replay-violate:
  - command: python src/main.py --model=tests/tcp/tcp-phi6.pml --attacker=replay --chan=AtoB --output=temp.pml --eval --cleanup --mem=1
  - intended: property violation
  - explanation: Replaying a FIN while in Closing forces an invalid transition to TimeWait instead of Closed.

tcp-phi6-replay-pass:
  - command: python src/main.py --model=tests/tcp/tcp-phi6.pml --attacker=replay --chan=AtoB --output=temp.pml --eval --cleanup --mem=0
  - intended: no violation
  - explanation: 0 memory prevents injection of unexpected packets during the tear-down phase.

tcp-phi6-reorder-violate:
  - command: python src/main.py --model=tests/tcp/tcp-phi6.pml --attacker=reorder --chan=AtoB,BtoA --output=temp.pml --eval --cleanup --mem=2
  - intended: property violation
  - explanation: Swapping FINs during a simultaneous close alters the ACK delivery timing, violating the strict sequence.

tcp-phi6-reorder-pass:
  - command: python src/main.py --model=tests/tcp/tcp-phi6.pml --attacker=reorder --chan=AtoB --output=temp.pml --eval --cleanup --mem=1
  - intended: no violation
  - explanation: Mem=1 prevents the reordering of the close-sequence messages.

# --- PHI 7: SIMULTANEOUS CLOSE RESOLUTION ---

tcp-phi7-drop-violate:
  - command: python src/main.py --model=tests/tcp/tcp-phi7.pml --attacker=drop --chan=AtoB --output=temp.pml --eval --cleanup --mem=1
  - intended: acceptance cycle
  - explanation: Dropping a FIN during a simultaneous close prevents one side from transitioning out of FinW1State.

tcp-phi7-drop-pass:
  - command: python src/main.py --model=tests/tcp/tcp-phi7.pml --attacker=drop --chan=AtoB --output=temp.pml --eval --cleanup --mem=0
  - intended: no violation
  - explanation: Zero memory prevents message dropping; both endpoints successfully reach ClosedState.

tcp-phi7-replay-violate:
  - command: python src/main.py --model=tests/tcp/tcp-phi7.pml --attacker=replay --chan=AtoB --output=temp.pml --eval --cleanup --mem=1
  - intended: acceptance cycle
  - explanation: Replaying stale FINs traps the endpoint in a continuous processing loop, halting progress to ClosedState.

tcp-phi7-replay-pass:
  - command: python src/main.py --model=tests/tcp/tcp-phi7.pml --attacker=replay --chan=AtoB --output=temp.pml --eval --cleanup --mem=0
  - intended: no violation
  - explanation: Without replay capabilities, the simultaneous close resolves chronologically.

tcp-phi7-reorder-violate:
  - command: python src/main.py --model=tests/tcp/tcp-phi7.pml --attacker=reorder --chan=AtoB,BtoA --output=temp.pml --eval --cleanup --mem=2
  - intended: acceptance cycle
  - explanation: Swapping FIN and ACK segments out of order desynchronizes the simultaneous close, causing a deadlock.

tcp-phi7-reorder-pass:
  - command: python src/main.py --model=tests/tcp/tcp-phi7.pml --attacker=reorder --chan=AtoB --output=temp.pml --eval --cleanup --mem=1
  - intended: no violation
  - explanation: Mem=1 is insufficient to execute a reorder attack.


# --- PHI 8: ACTIVE CLOSE EVENTUALLY TERMINATES ---

tcp-phi8-drop-violate:
  - command: python src/main.py --model=tests/tcp/tcp-phi8.pml --attacker=drop --chan=BtoA --output=temp.pml --eval --cleanup --mem=1
  - intended: acceptance cycle
  - explanation: Dropping the responder's ACK leaves the active closer permanently stranded in FinW1State.

tcp-phi8-drop-pass:
  - command: python src/main.py --model=tests/tcp/tcp-phi8.pml --attacker=drop --chan=BtoA --output=temp.pml --eval --cleanup --mem=0
  - intended: no violation
  - explanation: Normal teardown ensures the active closer receives its ACK and FIN.

tcp-phi8-replay-violate:
  - command: python src/main.py --model=tests/tcp/tcp-phi8.pml --attacker=replay --chan=AtoB --output=temp.pml --eval --cleanup --mem=1
  - intended: acceptance cycle
  - explanation: Replaying application data or FINs delays the final transition, breaking the eventual termination guarantee.

tcp-phi8-replay-pass:
  - command: python src/main.py --model=tests/tcp/tcp-phi8.pml --attacker=replay --chan=AtoB --output=temp.pml --eval --cleanup --mem=0
  - intended: no violation
  - explanation: Normal sequence guarantees the active closer reaches ClosedState.

tcp-phi8-reorder-violate:
  - command: python src/main.py --model=tests/tcp/tcp-phi8.pml --attacker=reorder --chan=BtoA --output=temp.pml --eval --cleanup --mem=2
  - intended: acceptance cycle
  - explanation: Delivering the responder's FIN before the ACK confuses the state machine logic in FinW1State, stalling termination.

tcp-phi8-reorder-pass:
  - command: python src/main.py --model=tests/tcp/tcp-phi8.pml --attacker=reorder --chan=BtoA --output=temp.pml --eval --cleanup --mem=1
  - intended: no violation
  - explanation: Insufficient memory to alter the close sequence.


# --- PHI 9: HANDSHAKE CANNOT BE BYPASSED ---
# Note: This is a strict safety property guaranteed by the structure of the Promela model. 
# The LISTEN state explicitly routes only to SYN_RECEIVED upon reading a SYN. 
# No channel attacker (drop, replay, reorder) can force a direct jump to ESTABLISHED.

tcp-phi9-drop-pass:
  - command: python src/main.py --model=tests/tcp/tcp-phi9.pml --attacker=drop --chan=AtoB --output=temp.pml --eval --cleanup --mem=1
  - intended: no violation
  - explanation: Dropping messages halts progress but cannot force an illegal structural transition from Listen directly to Established.

tcp-phi9-replay-pass:
  - command: python src/main.py --model=tests/tcp/tcp-phi9.pml --attacker=replay --chan=AtoB --output=temp.pml --eval --cleanup --mem=1
  - intended: no violation
  - explanation: The model's Listen state only branches on SYN (transitioning to SynRec). Replaying ACKs or FINs results in skipped messages, not illegal state jumps.

tcp-phi9-reorder-pass:
  - command: python src/main.py --model=tests/tcp/tcp-phi9.pml --attacker=reorder --chan=AtoB --output=temp.pml --eval --cleanup --mem=2
  - intended: no violation
  - explanation: Regardless of message order, the Promela model restricts ListenState exits exclusively to SynRecState. This safety property is structurally immune to channel manipulation.