make[1]: Entering directory `/home/compudj/doc/userspace-rcu/formal-model/urcu'
rm -f pan* trail.out .input.spin* *.spin.trail .input.define
touch .input.define
cat .input.define >> pan.ltl
cat DEFINES >> pan.ltl
spin -f "!(`cat urcu_free.ltl | grep -v ^//`)" >> pan.ltl
cat .input.define > .input.spin
cat DEFINES >> .input.spin
cat urcu.spin >> .input.spin
rm -f .input.spin.trail
spin -a -X -N pan.ltl .input.spin
Exit-Status 0
gcc -O2 -w -DHASH64 -o pan pan.c
./pan -a -v -c1 -X -m10000000 -w20
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 0: Claim reached state 5 (line 743)

(Spin Version 5.1.7 -- 23 December 2008)
	+ 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 56 byte, depth reached 2560, errors: 0
   954166 states, stored
 10460008 states, matched
 11414174 transitions (= stored+matched)
 41707752 atomic steps
hash conflicts:   2907736 (resolved)

Stats on memory usage (in Megabytes):
   76.437	equivalent memory usage for states (stored*(State-vector + overhead))
   58.605	actual memory usage for states (compression: 76.67%)
         	state-vector as stored = 36 byte + 28 byte overhead
    8.000	memory used for hash table (-w20)
  457.764	memory used for DFS stack (-m10000000)
  524.358	total actual memory usage

unreached in proctype urcu_reader
	line 398, "pan.___", state 16, "cache_dirty_urcu_gp_ctr.bitfield = (cache_dirty_urcu_gp_ctr.bitfield&~((1<<_pid)))"
	line 407, "pan.___", state 48, "cache_dirty_generation_ptr.bitfield = (cache_dirty_generation_ptr.bitfield&~((1<<_pid)))"
	line 408, "pan.___", state 61, "(1)"
	line 417, "pan.___", state 91, "(1)"
	line 398, "pan.___", state 106, "cache_dirty_urcu_gp_ctr.bitfield = (cache_dirty_urcu_gp_ctr.bitfield&~((1<<_pid)))"
	line 407, "pan.___", state 138, "cache_dirty_generation_ptr.bitfield = (cache_dirty_generation_ptr.bitfield&~((1<<_pid)))"
	line 408, "pan.___", state 151, "(1)"
	line 417, "pan.___", state 181, "(1)"
	line 398, "pan.___", state 197, "cache_dirty_urcu_gp_ctr.bitfield = (cache_dirty_urcu_gp_ctr.bitfield&~((1<<_pid)))"
	line 407, "pan.___", state 229, "cache_dirty_generation_ptr.bitfield = (cache_dirty_generation_ptr.bitfield&~((1<<_pid)))"
	line 408, "pan.___", state 242, "(1)"
	line 417, "pan.___", state 272, "(1)"
	line 398, "pan.___", state 315, "cache_dirty_urcu_gp_ctr.bitfield = (cache_dirty_urcu_gp_ctr.bitfield&~((1<<_pid)))"
	line 407, "pan.___", state 347, "cache_dirty_generation_ptr.bitfield = (cache_dirty_generation_ptr.bitfield&~((1<<_pid)))"
	line 408, "pan.___", state 360, "(1)"
	line 417, "pan.___", state 390, "(1)"
	line 539, "pan.___", state 414, "-end-"
	(17 of 414 states)
unreached in proctype urcu_writer
	line 398, "pan.___", state 14, "cache_dirty_urcu_gp_ctr.bitfield = (cache_dirty_urcu_gp_ctr.bitfield&~((1<<_pid)))"
	line 402, "pan.___", state 28, "cache_dirty_urcu_active_readers.bitfield = (cache_dirty_urcu_active_readers.bitfield&~((1<<_pid)))"
	line 407, "pan.___", state 46, "cache_dirty_generation_ptr.bitfield = (cache_dirty_generation_ptr.bitfield&~((1<<_pid)))"
	line 408, "pan.___", state 59, "(1)"
	line 412, "pan.___", state 72, "(1)"
	line 417, "pan.___", state 89, "(1)"
	line 398, "pan.___", state 108, "cache_dirty_urcu_gp_ctr.bitfield = (cache_dirty_urcu_gp_ctr.bitfield&~((1<<_pid)))"
	line 402, "pan.___", state 122, "cache_dirty_urcu_active_readers.bitfield = (cache_dirty_urcu_active_readers.bitfield&~((1<<_pid)))"
	line 408, "pan.___", state 153, "(1)"
	line 412, "pan.___", state 166, "(1)"
	line 651, "pan.___", state 199, "(1)"
	line 174, "pan.___", state 208, "cache_dirty_urcu_gp_ctr.bitfield = (cache_dirty_urcu_gp_ctr.bitfield&~((1<<_pid)))"
	line 178, "pan.___", state 217, "cache_dirty_urcu_active_readers.bitfield = (cache_dirty_urcu_active_readers.bitfield&~((1<<_pid)))"
	line 159, "pan.___", state 240, "(1)"
	line 163, "pan.___", state 248, "(1)"
	line 167, "pan.___", state 260, "(1)"
	line 174, "pan.___", state 271, "cache_dirty_urcu_gp_ctr.bitfield = (cache_dirty_urcu_gp_ctr.bitfield&~((1<<i)))"
	line 182, "pan.___", state 293, "cache_dirty_generation_ptr.bitfield = (cache_dirty_generation_ptr.bitfield&~((1<<i)))"
	line 159, "pan.___", state 303, "(1)"
	line 163, "pan.___", state 311, "(1)"
	line 167, "pan.___", state 323, "(1)"
	line 174, "pan.___", state 338, "cache_dirty_urcu_gp_ctr.bitfield = (cache_dirty_urcu_gp_ctr.bitfield&~((1<<_pid)))"
	line 178, "pan.___", state 347, "cache_dirty_urcu_active_readers.bitfield = (cache_dirty_urcu_active_readers.bitfield&~((1<<_pid)))"
	line 182, "pan.___", state 360, "cache_dirty_generation_ptr.bitfield = (cache_dirty_generation_ptr.bitfield&~((1<<_pid)))"
	line 159, "pan.___", state 370, "(1)"
	line 163, "pan.___", state 378, "(1)"
	line 167, "pan.___", state 390, "(1)"
	line 398, "pan.___", state 404, "cache_dirty_urcu_gp_ctr.bitfield = (cache_dirty_urcu_gp_ctr.bitfield&~((1<<_pid)))"
	line 402, "pan.___", state 418, "cache_dirty_urcu_active_readers.bitfield = (cache_dirty_urcu_active_readers.bitfield&~((1<<_pid)))"
	line 407, "pan.___", state 436, "cache_dirty_generation_ptr.bitfield = (cache_dirty_generation_ptr.bitfield&~((1<<_pid)))"
	line 408, "pan.___", state 449, "(1)"
	line 412, "pan.___", state 462, "(1)"
	line 417, "pan.___", state 479, "(1)"
	line 398, "pan.___", state 498, "(1)"
	line 402, "pan.___", state 510, "cache_dirty_urcu_active_readers.bitfield = (cache_dirty_urcu_active_readers.bitfield&~((1<<_pid)))"
	line 407, "pan.___", state 528, "cache_dirty_generation_ptr.bitfield = (cache_dirty_generation_ptr.bitfield&~((1<<_pid)))"
	line 412, "pan.___", state 554, "(1)"
	line 417, "pan.___", state 571, "(1)"
	line 402, "pan.___", state 603, "cache_dirty_urcu_active_readers.bitfield = (cache_dirty_urcu_active_readers.bitfield&~((1<<_pid)))"
	line 407, "pan.___", state 621, "cache_dirty_generation_ptr.bitfield = (cache_dirty_generation_ptr.bitfield&~((1<<_pid)))"
	line 412, "pan.___", state 647, "(1)"
	line 417, "pan.___", state 664, "(1)"
	line 178, "pan.___", state 687, "cache_dirty_urcu_active_readers.bitfield = (cache_dirty_urcu_active_readers.bitfield&~((1<<_pid)))"
	line 182, "pan.___", state 700, "cache_dirty_generation_ptr.bitfield = (cache_dirty_generation_ptr.bitfield&~((1<<_pid)))"
	line 159, "pan.___", state 710, "(1)"
	line 163, "pan.___", state 718, "(1)"
	line 167, "pan.___", state 730, "(1)"
	line 174, "pan.___", state 741, "cache_dirty_urcu_gp_ctr.bitfield = (cache_dirty_urcu_gp_ctr.bitfield&~((1<<i)))"
	line 182, "pan.___", state 763, "cache_dirty_generation_ptr.bitfield = (cache_dirty_generation_ptr.bitfield&~((1<<i)))"
	line 159, "pan.___", state 773, "(1)"
	line 163, "pan.___", state 781, "(1)"
	line 167, "pan.___", state 793, "(1)"
	line 174, "pan.___", state 808, "cache_dirty_urcu_gp_ctr.bitfield = (cache_dirty_urcu_gp_ctr.bitfield&~((1<<_pid)))"
	line 178, "pan.___", state 817, "cache_dirty_urcu_active_readers.bitfield = (cache_dirty_urcu_active_readers.bitfield&~((1<<_pid)))"
	line 182, "pan.___", state 830, "cache_dirty_generation_ptr.bitfield = (cache_dirty_generation_ptr.bitfield&~((1<<_pid)))"
	line 159, "pan.___", state 840, "(1)"
	line 163, "pan.___", state 848, "(1)"
	line 167, "pan.___", state 860, "(1)"
	line 398, "pan.___", state 882, "cache_dirty_urcu_gp_ctr.bitfield = (cache_dirty_urcu_gp_ctr.bitfield&~((1<<_pid)))"
	line 398, "pan.___", state 884, "(1)"
	line 398, "pan.___", state 885, "((cache_dirty_urcu_gp_ctr.bitfield&(1<<_pid)))"
	line 398, "pan.___", state 885, "else"
	line 398, "pan.___", state 888, "(1)"
	line 402, "pan.___", state 896, "cache_dirty_urcu_active_readers.bitfield = (cache_dirty_urcu_active_readers.bitfield&~((1<<_pid)))"
	line 402, "pan.___", state 898, "(1)"
	line 402, "pan.___", state 899, "((cache_dirty_urcu_active_readers.bitfield&(1<<_pid)))"
	line 402, "pan.___", state 899, "else"
	line 402, "pan.___", state 902, "(1)"
	line 402, "pan.___", state 903, "(1)"
	line 402, "pan.___", state 903, "(1)"
	line 400, "pan.___", state 908, "((i<1))"
	line 400, "pan.___", state 908, "((i>=1))"
	line 407, "pan.___", state 914, "cache_dirty_generation_ptr.bitfield = (cache_dirty_generation_ptr.bitfield&~((1<<_pid)))"
	line 408, "pan.___", state 927, "(1)"
	line 408, "pan.___", state 928, "(!((cache_dirty_urcu_gp_ctr.bitfield&(1<<_pid))))"
	line 408, "pan.___", state 928, "else"
	line 408, "pan.___", state 931, "(1)"
	line 408, "pan.___", state 932, "(1)"
	line 408, "pan.___", state 932, "(1)"
	line 412, "pan.___", state 940, "(1)"
	line 412, "pan.___", state 941, "(!((cache_dirty_urcu_active_readers.bitfield&(1<<_pid))))"
	line 412, "pan.___", state 941, "else"
	line 412, "pan.___", state 944, "(1)"
	line 412, "pan.___", state 945, "(1)"
	line 412, "pan.___", state 945, "(1)"
	line 410, "pan.___", state 950, "((i<1))"
	line 410, "pan.___", state 950, "((i>=1))"
	line 417, "pan.___", state 957, "(1)"
	line 417, "pan.___", state 958, "(!((cache_dirty_generation_ptr.bitfield&(1<<_pid))))"
	line 417, "pan.___", state 958, "else"
	line 417, "pan.___", state 961, "(1)"
	line 417, "pan.___", state 962, "(1)"
	line 417, "pan.___", state 962, "(1)"
	line 419, "pan.___", state 965, "(1)"
	line 419, "pan.___", state 965, "(1)"
	line 402, "pan.___", state 996, "cache_dirty_urcu_active_readers.bitfield = (cache_dirty_urcu_active_readers.bitfield&~((1<<_pid)))"
	line 407, "pan.___", state 1014, "cache_dirty_generation_ptr.bitfield = (cache_dirty_generation_ptr.bitfield&~((1<<_pid)))"
	line 412, "pan.___", state 1040, "(1)"
	line 417, "pan.___", state 1057, "(1)"
	line 402, "pan.___", state 1086, "cache_dirty_urcu_active_readers.bitfield = (cache_dirty_urcu_active_readers.bitfield&~((1<<_pid)))"
	line 407, "pan.___", state 1104, "cache_dirty_generation_ptr.bitfield = (cache_dirty_generation_ptr.bitfield&~((1<<_pid)))"
	line 412, "pan.___", state 1130, "(1)"
	line 417, "pan.___", state 1147, "(1)"
	line 398, "pan.___", state 1166, "(1)"
	line 402, "pan.___", state 1178, "cache_dirty_urcu_active_readers.bitfield = (cache_dirty_urcu_active_readers.bitfield&~((1<<_pid)))"
	line 407, "pan.___", state 1196, "cache_dirty_generation_ptr.bitfield = (cache_dirty_generation_ptr.bitfield&~((1<<_pid)))"
	line 412, "pan.___", state 1222, "(1)"
	line 417, "pan.___", state 1239, "(1)"
	line 402, "pan.___", state 1271, "cache_dirty_urcu_active_readers.bitfield = (cache_dirty_urcu_active_readers.bitfield&~((1<<_pid)))"
	line 407, "pan.___", state 1289, "cache_dirty_generation_ptr.bitfield = (cache_dirty_generation_ptr.bitfield&~((1<<_pid)))"
	line 412, "pan.___", state 1315, "(1)"
	line 417, "pan.___", state 1332, "(1)"
	line 178, "pan.___", state 1355, "cache_dirty_urcu_active_readers.bitfield = (cache_dirty_urcu_active_readers.bitfield&~((1<<_pid)))"
	line 182, "pan.___", state 1368, "cache_dirty_generation_ptr.bitfield = (cache_dirty_generation_ptr.bitfield&~((1<<_pid)))"
	line 159, "pan.___", state 1378, "(1)"
	line 163, "pan.___", state 1386, "(1)"
	line 167, "pan.___", state 1398, "(1)"
	line 174, "pan.___", state 1409, "cache_dirty_urcu_gp_ctr.bitfield = (cache_dirty_urcu_gp_ctr.bitfield&~((1<<i)))"
	line 182, "pan.___", state 1431, "cache_dirty_generation_ptr.bitfield = (cache_dirty_generation_ptr.bitfield&~((1<<i)))"
	line 159, "pan.___", state 1441, "(1)"
	line 163, "pan.___", state 1449, "(1)"
	line 167, "pan.___", state 1461, "(1)"
	line 174, "pan.___", state 1476, "cache_dirty_urcu_gp_ctr.bitfield = (cache_dirty_urcu_gp_ctr.bitfield&~((1<<_pid)))"
	line 178, "pan.___", state 1485, "cache_dirty_urcu_active_readers.bitfield = (cache_dirty_urcu_active_readers.bitfield&~((1<<_pid)))"
	line 182, "pan.___", state 1498, "cache_dirty_generation_ptr.bitfield = (cache_dirty_generation_ptr.bitfield&~((1<<_pid)))"
	line 159, "pan.___", state 1508, "(1)"
	line 163, "pan.___", state 1516, "(1)"
	line 167, "pan.___", state 1528, "(1)"
	line 398, "pan.___", state 1550, "cache_dirty_urcu_gp_ctr.bitfield = (cache_dirty_urcu_gp_ctr.bitfield&~((1<<_pid)))"
	line 398, "pan.___", state 1552, "(1)"
	line 398, "pan.___", state 1553, "((cache_dirty_urcu_gp_ctr.bitfield&(1<<_pid)))"
	line 398, "pan.___", state 1553, "else"
	line 398, "pan.___", state 1556, "(1)"
	line 402, "pan.___", state 1564, "cache_dirty_urcu_active_readers.bitfield = (cache_dirty_urcu_active_readers.bitfield&~((1<<_pid)))"
	line 402, "pan.___", state 1566, "(1)"
	line 402, "pan.___", state 1567, "((cache_dirty_urcu_active_readers.bitfield&(1<<_pid)))"
	line 402, "pan.___", state 1567, "else"
	line 402, "pan.___", state 1570, "(1)"
	line 402, "pan.___", state 1571, "(1)"
	line 402, "pan.___", state 1571, "(1)"
	line 400, "pan.___", state 1576, "((i<1))"
	line 400, "pan.___", state 1576, "((i>=1))"
	line 407, "pan.___", state 1582, "cache_dirty_generation_ptr.bitfield = (cache_dirty_generation_ptr.bitfield&~((1<<_pid)))"
	line 408, "pan.___", state 1595, "(1)"
	line 408, "pan.___", state 1596, "(!((cache_dirty_urcu_gp_ctr.bitfield&(1<<_pid))))"
	line 408, "pan.___", state 1596, "else"
	line 408, "pan.___", state 1599, "(1)"
	line 408, "pan.___", state 1600, "(1)"
	line 408, "pan.___", state 1600, "(1)"
	line 412, "pan.___", state 1608, "(1)"
	line 412, "pan.___", state 1609, "(!((cache_dirty_urcu_active_readers.bitfield&(1<<_pid))))"
	line 412, "pan.___", state 1609, "else"
	line 412, "pan.___", state 1612, "(1)"
	line 412, "pan.___", state 1613, "(1)"
	line 412, "pan.___", state 1613, "(1)"
	line 410, "pan.___", state 1618, "((i<1))"
	line 410, "pan.___", state 1618, "((i>=1))"
	line 417, "pan.___", state 1625, "(1)"
	line 417, "pan.___", state 1626, "(!((cache_dirty_generation_ptr.bitfield&(1<<_pid))))"
	line 417, "pan.___", state 1626, "else"
	line 417, "pan.___", state 1629, "(1)"
	line 417, "pan.___", state 1630, "(1)"
	line 417, "pan.___", state 1630, "(1)"
	line 419, "pan.___", state 1633, "(1)"
	line 419, "pan.___", state 1633, "(1)"
	line 178, "pan.___", state 1658, "cache_dirty_urcu_active_readers.bitfield = (cache_dirty_urcu_active_readers.bitfield&~((1<<_pid)))"
	line 182, "pan.___", state 1671, "cache_dirty_generation_ptr.bitfield = (cache_dirty_generation_ptr.bitfield&~((1<<_pid)))"
	line 159, "pan.___", state 1681, "(1)"
	line 163, "pan.___", state 1689, "(1)"
	line 167, "pan.___", state 1701, "(1)"
	line 174, "pan.___", state 1712, "cache_dirty_urcu_gp_ctr.bitfield = (cache_dirty_urcu_gp_ctr.bitfield&~((1<<i)))"
	line 182, "pan.___", state 1734, "cache_dirty_generation_ptr.bitfield = (cache_dirty_generation_ptr.bitfield&~((1<<i)))"
	line 159, "pan.___", state 1744, "(1)"
	line 163, "pan.___", state 1752, "(1)"
	line 167, "pan.___", state 1764, "(1)"
	line 174, "pan.___", state 1779, "cache_dirty_urcu_gp_ctr.bitfield = (cache_dirty_urcu_gp_ctr.bitfield&~((1<<_pid)))"
	line 178, "pan.___", state 1788, "cache_dirty_urcu_active_readers.bitfield = (cache_dirty_urcu_active_readers.bitfield&~((1<<_pid)))"
	line 182, "pan.___", state 1801, "cache_dirty_generation_ptr.bitfield = (cache_dirty_generation_ptr.bitfield&~((1<<_pid)))"
	line 159, "pan.___", state 1811, "(1)"
	line 163, "pan.___", state 1819, "(1)"
	line 167, "pan.___", state 1831, "(1)"
	line 701, "pan.___", state 1856, "-end-"
	(158 of 1856 states)
unreached in proctype :init:
	(0 of 46 states)
unreached in proctype :never:
	line 748, "pan.___", state 8, "-end-"
	(1 of 8 states)

pan: elapsed time 9.16 seconds
pan: rate 104166.59 states/second
pan: avg transition delay 8.0251e-07 usec
cp .input.spin urcu_free.spin.input
cp .input.spin.trail urcu_free.spin.input.trail
make[1]: Leaving directory `/home/compudj/doc/userspace-rcu/formal-model/urcu'