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_single_flip.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 742) (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 6934, errors: 0 7626 states, stored 67235 states, matched 74861 transitions (= stored+matched) 248896 atomic steps hash conflicts: 113 (resolved) Stats on memory usage (in Megabytes): 0.611 equivalent memory usage for states (stored*(State-vector + overhead)) 0.867 actual memory usage for states (unsuccessful compression: 141.88%) state-vector as stored = 91 byte + 28 byte overhead 8.000 memory used for hash table (-w20) 457.764 memory used for DFS stack (-m10000000) 466.545 total actual memory usage unreached in proctype urcu_reader_sig line 402, "pan.___", state 330, "(1)" line 613, "pan.___", state 411, "-end-" (2 of 411 states) unreached in proctype urcu_writer line 398, "pan.___", state 14, "cache_dirty_urcu_gp_ctr.bitfield = (cache_dirty_urcu_gp_ctr.bitfield&~((1<<0)))" line 407, "pan.___", state 46, "cache_dirty_generation_ptr.bitfield = (cache_dirty_generation_ptr.bitfield&~((1<<0)))" line 408, "pan.___", state 59, "(1)" line 417, "pan.___", state 89, "(1)" line 398, "pan.___", state 115, "cache_dirty_urcu_gp_ctr.bitfield = (cache_dirty_urcu_gp_ctr.bitfield&~((1<<0)))" line 408, "pan.___", state 160, "(1)" line 651, "pan.___", state 213, "(1)" line 174, "pan.___", state 222, "cache_dirty_urcu_gp_ctr.bitfield = (cache_dirty_urcu_gp_ctr.bitfield&~((1<<0)))" line 178, "pan.___", state 233, "(1)" line 159, "pan.___", state 254, "(1)" line 163, "pan.___", state 262, "(1)" line 167, "pan.___", state 274, "(1)" line 174, "pan.___", state 285, "cache_dirty_urcu_gp_ctr.bitfield = (cache_dirty_urcu_gp_ctr.bitfield&~((1<=1))" line 182, "pan.___", state 742, "cache_dirty_generation_ptr.bitfield = (cache_dirty_generation_ptr.bitfield&~((1<<0)))" line 159, "pan.___", state 752, "(1)" line 163, "pan.___", state 760, "(1)" line 163, "pan.___", state 761, "(!((cache_dirty_urcu_active_readers.bitfield&(1<<0))))" line 163, "pan.___", state 761, "else" line 161, "pan.___", state 766, "((j<1))" line 161, "pan.___", state 766, "((j>=1))" line 167, "pan.___", state 772, "(1)" line 167, "pan.___", state 773, "(!((cache_dirty_generation_ptr.bitfield&(1<<0))))" line 167, "pan.___", state 773, "else" line 169, "pan.___", state 776, "(!((cache_dirty_urcu_gp_ctr.bitfield&(1<<0))))" line 169, "pan.___", state 776, "else" line 174, "pan.___", state 783, "cache_dirty_urcu_gp_ctr.bitfield = (cache_dirty_urcu_gp_ctr.bitfield&~((1<=1))" line 182, "pan.___", state 805, "cache_dirty_generation_ptr.bitfield = (cache_dirty_generation_ptr.bitfield&~((1<=1))" line 167, "pan.___", state 835, "(1)" line 167, "pan.___", state 836, "(!((cache_dirty_generation_ptr.bitfield&(1<=1))" line 174, "pan.___", state 850, "cache_dirty_urcu_gp_ctr.bitfield = (cache_dirty_urcu_gp_ctr.bitfield&~((1<<0)))" line 174, "pan.___", state 852, "(1)" line 178, "pan.___", state 859, "cache_dirty_urcu_active_readers.bitfield = (cache_dirty_urcu_active_readers.bitfield&~((1<<0)))" line 178, "pan.___", state 861, "(1)" line 178, "pan.___", state 862, "((cache_dirty_urcu_active_readers.bitfield&(1<<0)))" line 178, "pan.___", state 862, "else" line 176, "pan.___", state 867, "((j<1))" line 176, "pan.___", state 867, "((j>=1))" line 182, "pan.___", state 872, "cache_dirty_generation_ptr.bitfield = (cache_dirty_generation_ptr.bitfield&~((1<<0)))" line 159, "pan.___", state 882, "(1)" line 163, "pan.___", state 890, "(1)" line 163, "pan.___", state 891, "(!((cache_dirty_urcu_active_readers.bitfield&(1<<0))))" line 163, "pan.___", state 891, "else" line 161, "pan.___", state 896, "((j<1))" line 161, "pan.___", state 896, "((j>=1))" line 167, "pan.___", state 902, "(1)" line 167, "pan.___", state 903, "(!((cache_dirty_generation_ptr.bitfield&(1<<0))))" line 167, "pan.___", state 903, "else" line 169, "pan.___", state 906, "(!((cache_dirty_urcu_gp_ctr.bitfield&(1<<0))))" line 169, "pan.___", state 906, "else" line 201, "pan.___", state 908, "((cache_dirty_urcu_gp_ctr.bitfield&(1<<0)))" line 201, "pan.___", state 908, "else" line 220, "pan.___", state 909, "((cache_dirty_urcu_gp_ctr.bitfield&(1<<0)))" line 220, "pan.___", state 909, "else" line 355, "pan.___", state 915, "((sighand_exec==1))" line 355, "pan.___", state 915, "else" line 361, "pan.___", state 918, "sighand_exec = 1" line 398, "pan.___", state 931, "cache_dirty_urcu_gp_ctr.bitfield = (cache_dirty_urcu_gp_ctr.bitfield&~((1<<0)))" line 398, "pan.___", state 933, "(1)" line 398, "pan.___", state 934, "((cache_dirty_urcu_gp_ctr.bitfield&(1<<0)))" line 398, "pan.___", state 934, "else" line 398, "pan.___", state 937, "(1)" line 402, "pan.___", state 945, "cache_dirty_urcu_active_readers.bitfield = (cache_dirty_urcu_active_readers.bitfield&~((1<<0)))" line 402, "pan.___", state 947, "(1)" line 402, "pan.___", state 948, "((cache_dirty_urcu_active_readers.bitfield&(1<<0)))" line 402, "pan.___", state 948, "else" line 402, "pan.___", state 951, "(1)" line 402, "pan.___", state 952, "(1)" line 402, "pan.___", state 952, "(1)" line 400, "pan.___", state 957, "((i<1))" line 400, "pan.___", state 957, "((i>=1))" line 407, "pan.___", state 963, "cache_dirty_generation_ptr.bitfield = (cache_dirty_generation_ptr.bitfield&~((1<<0)))" line 408, "pan.___", state 976, "(1)" line 408, "pan.___", state 977, "(!((cache_dirty_urcu_gp_ctr.bitfield&(1<<0))))" line 408, "pan.___", state 977, "else" line 408, "pan.___", state 980, "(1)" line 408, "pan.___", state 981, "(1)" line 408, "pan.___", state 981, "(1)" line 412, "pan.___", state 989, "(1)" line 412, "pan.___", state 990, "(!((cache_dirty_urcu_active_readers.bitfield&(1<<0))))" line 412, "pan.___", state 990, "else" line 412, "pan.___", state 993, "(1)" line 412, "pan.___", state 994, "(1)" line 412, "pan.___", state 994, "(1)" line 410, "pan.___", state 999, "((i<1))" line 410, "pan.___", state 999, "((i>=1))" line 417, "pan.___", state 1006, "(1)" line 417, "pan.___", state 1007, "(!((cache_dirty_generation_ptr.bitfield&(1<<0))))" line 417, "pan.___", state 1007, "else" line 417, "pan.___", state 1010, "(1)" line 417, "pan.___", state 1011, "(1)" line 417, "pan.___", state 1011, "(1)" line 419, "pan.___", state 1014, "(1)" line 419, "pan.___", state 1014, "(1)" line 361, "pan.___", state 1023, "sighand_exec = 1" line 178, "pan.___", state 1048, "(1)" line 182, "pan.___", state 1059, "cache_dirty_generation_ptr.bitfield = (cache_dirty_generation_ptr.bitfield&~((1<<0)))" line 159, "pan.___", state 1069, "(1)" line 163, "pan.___", state 1077, "(1)" line 167, "pan.___", state 1089, "(1)" line 174, "pan.___", state 1100, "cache_dirty_urcu_gp_ctr.bitfield = (cache_dirty_urcu_gp_ctr.bitfield&~((1<