#define c1 inC[0]==1
#define c2 inC[1]==1
#define w1 wait[0]==1
#define w2 wait[1]==1
	/*
	 * Formula As Typed: [] (w1 -> <>!w1)
	 * The Never Claim Below Corresponds
	 * To The Negated Formula !([] (w1 -> <>!w1))
	 * (formalizing violations of the original)
	 */

never {    /* !([] (w1 -> <>!w1)) */
T0_init:
	if
	:: ((w1)) -> goto accept_S4
	:: (1) -> goto T0_init
	fi;
accept_S4:
	if
	:: ((w1)) -> goto accept_S4
	fi;
}

#ifdef NOTES
Use Load to open a file or a template.
#endif
#ifdef RESULT
warning: for p.o. reduction to be valid the never claim must be stutter-invariant
(never claims generated from LTL formulae are stutter-invariant)
depth 122: Claim reached state 9 (line 85)
pan: acceptance cycle (at depth 228)
pan: wrote pan_in.trail
(Spin Version 4.2.2 -- 12 December 2004)
Warning: Search not completed
	+ Partial Order Reduction

Full statespace search for:
	never claim         	+
	assertion violations	+ (if within scope of claim)
	acceptance   cycles 	+ (fairness disabled)
	invalid end states	- (disabled by never claim)

State-vector 48 byte, depth reached 282, errors: 1
     263 states, stored (367 visited)
     202 states, matched
     569 transitions (= visited+matched)
       0 atomic steps
hash conflicts: 0 (resolved)

Stats on memory usage (in Megabytes):
0.015 	equivalent memory usage for states (stored*(State-vector + overhead))
0.302 	actual memory usage for states (unsuccessful compression: 2053.56%)
	State-vector as stored = 1142 byte + 8 byte overhead
2.097 	memory used for hash table (-w19)
0.320 	memory used for DFS stack (-m10000)
0.125 	other (proc and chan stacks)
0.098 	memory lost to fragmentation
2.622 	total actual memory usage

unreached in proctype client
	line 24, "pan.___", state 13, "-end-"
	(1 of 13 states)
unreached in proctype server
	line 56, "pan.___", state 27, "-end-"
	(1 of 27 states)
unreached in proctype :init:
	(0 of 4 states)
unreached in proctype :never:
	line 88, "pan.___", state 11, "-end-"
	(1 of 11 states)
0.00user 0.01system 0:00.01elapsed 76%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+741minor)pagefaults 0swaps

#endif