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 cp urcu_free_no_rmb.define .input.define 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 744) pan: claim violated! (at depth 1726) pan: wrote .input.spin.trail (Spin Version 5.1.7 -- 23 December 2008) 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 56 byte, depth reached 3264, errors: 1 229629 states, stored 2119227 states, matched 2348856 transitions (= stored+matched) 8294746 atomic steps hash conflicts: 96242 (resolved) Stats on memory usage (in Megabytes): 18.395 equivalent memory usage for states (stored*(State-vector + overhead)) 14.410 actual memory usage for states (compression: 78.34%) state-vector as stored = 38 byte + 28 byte overhead 8.000 memory used for hash table (-w20) 457.764 memory used for DFS stack (-m10000000) 480.119 total actual memory usage unreached in proctype urcu_reader line 399, "pan.___", state 16, "cache_dirty_urcu_gp_ctr.bitfield = (cache_dirty_urcu_gp_ctr.bitfield&~((1<<_pid)))" line 408, "pan.___", state 48, "cache_dirty_generation_ptr.bitfield = (cache_dirty_generation_ptr.bitfield&~((1<<_pid)))" line 409, "pan.___", state 61, "(1)" line 418, "pan.___", state 91, "(1)" line 399, "pan.___", state 106, "cache_dirty_urcu_gp_ctr.bitfield = (cache_dirty_urcu_gp_ctr.bitfield&~((1<<_pid)))" line 408, "pan.___", state 138, "cache_dirty_generation_ptr.bitfield = (cache_dirty_generation_ptr.bitfield&~((1<<_pid)))" line 409, "pan.___", state 151, "(1)" line 418, "pan.___", state 181, "(1)" line 399, "pan.___", state 197, "cache_dirty_urcu_gp_ctr.bitfield = (cache_dirty_urcu_gp_ctr.bitfield&~((1<<_pid)))" line 408, "pan.___", state 229, "cache_dirty_generation_ptr.bitfield = (cache_dirty_generation_ptr.bitfield&~((1<<_pid)))" line 409, "pan.___", state 242, "(1)" line 418, "pan.___", state 272, "(1)" line 399, "pan.___", state 315, "cache_dirty_urcu_gp_ctr.bitfield = (cache_dirty_urcu_gp_ctr.bitfield&~((1<<_pid)))" line 408, "pan.___", state 347, "cache_dirty_generation_ptr.bitfield = (cache_dirty_generation_ptr.bitfield&~((1<<_pid)))" line 409, "pan.___", state 360, "(1)" line 418, "pan.___", state 390, "(1)" line 540, "pan.___", state 414, "-end-" (17 of 414 states) unreached in proctype urcu_writer line 399, "pan.___", state 14, "cache_dirty_urcu_gp_ctr.bitfield = (cache_dirty_urcu_gp_ctr.bitfield&~((1<<_pid)))" line 399, "pan.___", state 20, "(1)" line 403, "pan.___", state 28, "cache_dirty_urcu_active_readers.bitfield = (cache_dirty_urcu_active_readers.bitfield&~((1<<_pid)))" line 403, "pan.___", state 34, "(1)" line 403, "pan.___", state 35, "(1)" line 403, "pan.___", state 35, "(1)" line 401, "pan.___", state 40, "((i<1))" line 401, "pan.___", state 40, "((i>=1))" line 408, "pan.___", state 46, "cache_dirty_generation_ptr.bitfield = (cache_dirty_generation_ptr.bitfield&~((1<<_pid)))" line 409, "pan.___", state 59, "(1)" line 409, "pan.___", state 60, "(!((cache_dirty_urcu_gp_ctr.bitfield&(1<<_pid))))" line 409, "pan.___", state 60, "else" line 409, "pan.___", state 63, "(1)" line 409, "pan.___", state 64, "(1)" line 409, "pan.___", state 64, "(1)" line 413, "pan.___", state 72, "(1)" line 413, "pan.___", state 73, "(!((cache_dirty_urcu_active_readers.bitfield&(1<<_pid))))" line 413, "pan.___", state 73, "else" line 413, "pan.___", state 76, "(1)" line 413, "pan.___", state 77, "(1)" line 413, "pan.___", state 77, "(1)" line 411, "pan.___", state 82, "((i<1))" line 411, "pan.___", state 82, "((i>=1))" line 418, "pan.___", state 89, "(1)" line 418, "pan.___", state 90, "(!((cache_dirty_generation_ptr.bitfield&(1<<_pid))))" line 418, "pan.___", state 90, "else" line 418, "pan.___", state 93, "(1)" line 418, "pan.___", state 94, "(1)" line 418, "pan.___", state 94, "(1)" line 420, "pan.___", state 97, "(1)" line 420, "pan.___", state 97, "(1)" line 369, "pan.___", state 99, "(1)" line 639, "pan.___", state 103, "cached_generation_ptr.val[_pid] = (old_gen+1)" line 637, "pan.___", state 104, "old_gen = cached_generation_ptr.val[_pid]" line 399, "pan.___", state 108, "cache_dirty_urcu_gp_ctr.bitfield = (cache_dirty_urcu_gp_ctr.bitfield&~((1<<_pid)))" line 399, "pan.___", state 114, "(1)" line 403, "pan.___", state 122, "cache_dirty_urcu_active_readers.bitfield = (cache_dirty_urcu_active_readers.bitfield&~((1<<_pid)))" line 403, "pan.___", state 128, "(1)" line 403, "pan.___", state 129, "(1)" line 403, "pan.___", state 129, "(1)" line 409, "pan.___", state 153, "(1)" line 413, "pan.___", state 166, "(1)" line 420, "pan.___", state 191, "(1)" line 420, "pan.___", state 191, "(1)" line 652, "pan.___", state 199, "(1)" line 175, "pan.___", state 208, "cache_dirty_urcu_gp_ctr.bitfield = (cache_dirty_urcu_gp_ctr.bitfield&~((1<<_pid)))" line 179, "pan.___", state 217, "cache_dirty_urcu_active_readers.bitfield = (cache_dirty_urcu_active_readers.bitfield&~((1<<_pid)))" line 175, "pan.___", state 243, "cache_dirty_urcu_gp_ctr.bitfield = (cache_dirty_urcu_gp_ctr.bitfield&~((1<=1))" line 408, "pan.___", state 746, "cache_dirty_generation_ptr.bitfield = (cache_dirty_generation_ptr.bitfield&~((1<<_pid)))" line 409, "pan.___", state 759, "(1)" line 409, "pan.___", state 760, "(!((cache_dirty_urcu_gp_ctr.bitfield&(1<<_pid))))" line 409, "pan.___", state 760, "else" line 409, "pan.___", state 763, "(1)" line 409, "pan.___", state 764, "(1)" line 409, "pan.___", state 764, "(1)" line 413, "pan.___", state 772, "(1)" line 413, "pan.___", state 773, "(!((cache_dirty_urcu_active_readers.bitfield&(1<<_pid))))" line 413, "pan.___", state 773, "else" line 413, "pan.___", state 776, "(1)" line 413, "pan.___", state 777, "(1)" line 413, "pan.___", state 777, "(1)" line 411, "pan.___", state 782, "((i<1))" line 411, "pan.___", state 782, "((i>=1))" line 418, "pan.___", state 789, "(1)" line 418, "pan.___", state 790, "(!((cache_dirty_generation_ptr.bitfield&(1<<_pid))))" line 418, "pan.___", state 790, "else" line 418, "pan.___", state 793, "(1)" line 418, "pan.___", state 794, "(1)" line 418, "pan.___", state 794, "(1)" line 420, "pan.___", state 797, "(1)" line 420, "pan.___", state 797, "(1)" line 403, "pan.___", state 828, "cache_dirty_urcu_active_readers.bitfield = (cache_dirty_urcu_active_readers.bitfield&~((1<<_pid)))" line 408, "pan.___", state 846, "cache_dirty_generation_ptr.bitfield = (cache_dirty_generation_ptr.bitfield&~((1<<_pid)))" line 413, "pan.___", state 872, "(1)" line 418, "pan.___", state 889, "(1)" line 403, "pan.___", state 918, "cache_dirty_urcu_active_readers.bitfield = (cache_dirty_urcu_active_readers.bitfield&~((1<<_pid)))" line 408, "pan.___", state 936, "cache_dirty_generation_ptr.bitfield = (cache_dirty_generation_ptr.bitfield&~((1<<_pid)))" line 413, "pan.___", state 962, "(1)" line 418, "pan.___", state 979, "(1)" line 399, "pan.___", state 998, "(1)" line 403, "pan.___", state 1010, "cache_dirty_urcu_active_readers.bitfield = (cache_dirty_urcu_active_readers.bitfield&~((1<<_pid)))" line 408, "pan.___", state 1028, "cache_dirty_generation_ptr.bitfield = (cache_dirty_generation_ptr.bitfield&~((1<<_pid)))" line 413, "pan.___", state 1054, "(1)" line 418, "pan.___", state 1071, "(1)" line 403, "pan.___", state 1103, "cache_dirty_urcu_active_readers.bitfield = (cache_dirty_urcu_active_readers.bitfield&~((1<<_pid)))" line 408, "pan.___", state 1121, "cache_dirty_generation_ptr.bitfield = (cache_dirty_generation_ptr.bitfield&~((1<<_pid)))" line 413, "pan.___", state 1147, "(1)" line 418, "pan.___", state 1164, "(1)" line 179, "pan.___", state 1187, "cache_dirty_urcu_active_readers.bitfield = (cache_dirty_urcu_active_readers.bitfield&~((1<<_pid)))" line 183, "pan.___", state 1200, "cache_dirty_generation_ptr.bitfield = (cache_dirty_generation_ptr.bitfield&~((1<<_pid)))" line 175, "pan.___", state 1213, "cache_dirty_urcu_gp_ctr.bitfield = (cache_dirty_urcu_gp_ctr.bitfield&~((1<=1))" line 408, "pan.___", state 1330, "cache_dirty_generation_ptr.bitfield = (cache_dirty_generation_ptr.bitfield&~((1<<_pid)))" line 409, "pan.___", state 1343, "(1)" line 409, "pan.___", state 1344, "(!((cache_dirty_urcu_gp_ctr.bitfield&(1<<_pid))))" line 409, "pan.___", state 1344, "else" line 409, "pan.___", state 1347, "(1)" line 409, "pan.___", state 1348, "(1)" line 409, "pan.___", state 1348, "(1)" line 413, "pan.___", state 1356, "(1)" line 413, "pan.___", state 1357, "(!((cache_dirty_urcu_active_readers.bitfield&(1<<_pid))))" line 413, "pan.___", state 1357, "else" line 413, "pan.___", state 1360, "(1)" line 413, "pan.___", state 1361, "(1)" line 413, "pan.___", state 1361, "(1)" line 411, "pan.___", state 1366, "((i<1))" line 411, "pan.___", state 1366, "((i>=1))" line 418, "pan.___", state 1373, "(1)" line 418, "pan.___", state 1374, "(!((cache_dirty_generation_ptr.bitfield&(1<<_pid))))" line 418, "pan.___", state 1374, "else" line 418, "pan.___", state 1377, "(1)" line 418, "pan.___", state 1378, "(1)" line 418, "pan.___", state 1378, "(1)" line 420, "pan.___", state 1381, "(1)" line 420, "pan.___", state 1381, "(1)" line 179, "pan.___", state 1406, "cache_dirty_urcu_active_readers.bitfield = (cache_dirty_urcu_active_readers.bitfield&~((1<<_pid)))" line 183, "pan.___", state 1419, "cache_dirty_generation_ptr.bitfield = (cache_dirty_generation_ptr.bitfield&~((1<<_pid)))" line 175, "pan.___", state 1432, "cache_dirty_urcu_gp_ctr.bitfield = (cache_dirty_urcu_gp_ctr.bitfield&~((1<=2))" line 710, "pan.___", state 20, "((j<2))" line 710, "pan.___", state 20, "((j>=2))" line 715, "pan.___", state 33, "((j<2))" line 715, "pan.___", state 33, "((j>=2))" (3 of 46 states) unreached in proctype :never: line 749, "pan.___", state 8, "-end-" (1 of 8 states) pan: elapsed time 1.88 seconds pan: rate 122143.09 states/second pan: avg transition delay 8.0039e-07 usec cp .input.spin urcu_free_no_rmb.spin.input cp .input.spin.trail urcu_free_no_rmb.spin.input.trail make[1]: Leaving directory `/home/compudj/doc/userspace-rcu/formal-model/urcu'