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 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 10519, errors: 0 20146 states, stored 191615 states, matched 211761 transitions (= stored+matched) 711676 atomic steps hash conflicts: 1222 (resolved) Stats on memory usage (in Megabytes): 1.614 equivalent memory usage for states (stored*(State-vector + overhead)) 1.509 actual memory usage for states (compression: 93.51%) state-vector as stored = 51 byte + 28 byte overhead 8.000 memory used for hash table (-w20) 457.764 memory used for DFS stack (-m10000000) 467.229 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 174, "pan.___", state 257, "cache_dirty_urcu_gp_ctr.bitfield = (cache_dirty_urcu_gp_ctr.bitfield&~((1<=1))" line 182, "pan.___", state 658, "cache_dirty_generation_ptr.bitfield = (cache_dirty_generation_ptr.bitfield&~((1<<0)))" line 182, "pan.___", state 660, "(1)" line 182, "pan.___", state 661, "((cache_dirty_generation_ptr.bitfield&(1<<0)))" line 182, "pan.___", state 661, "else" line 174, "pan.___", state 671, "cache_dirty_urcu_gp_ctr.bitfield = (cache_dirty_urcu_gp_ctr.bitfield&~((1<=1))" line 182, "pan.___", state 693, "cache_dirty_generation_ptr.bitfield = (cache_dirty_generation_ptr.bitfield&~((1<=1))" line 174, "pan.___", state 710, "cache_dirty_urcu_gp_ctr.bitfield = (cache_dirty_urcu_gp_ctr.bitfield&~((1<<0)))" line 174, "pan.___", state 712, "(1)" line 178, "pan.___", state 719, "cache_dirty_urcu_active_readers.bitfield = (cache_dirty_urcu_active_readers.bitfield&~((1<<0)))" line 178, "pan.___", state 721, "(1)" line 178, "pan.___", state 722, "((cache_dirty_urcu_active_readers.bitfield&(1<<0)))" line 178, "pan.___", state 722, "else" line 176, "pan.___", state 727, "((j<1))" line 176, "pan.___", state 727, "((j>=1))" line 182, "pan.___", state 732, "cache_dirty_generation_ptr.bitfield = (cache_dirty_generation_ptr.bitfield&~((1<<0)))" line 182, "pan.___", state 734, "(1)" line 182, "pan.___", state 735, "((cache_dirty_generation_ptr.bitfield&(1<<0)))" line 182, "pan.___", state 735, "else" line 192, "pan.___", state 740, "((cache_dirty_urcu_gp_ctr.bitfield&(1<<0)))" line 192, "pan.___", state 740, "else" line 220, "pan.___", state 741, "((cache_dirty_urcu_gp_ctr.bitfield&(1<<0)))" line 220, "pan.___", state 741, "else" line 355, "pan.___", state 747, "((sighand_exec==1))" line 355, "pan.___", state 747, "else" line 361, "pan.___", state 750, "sighand_exec = 1" line 398, "pan.___", state 763, "cache_dirty_urcu_gp_ctr.bitfield = (cache_dirty_urcu_gp_ctr.bitfield&~((1<<0)))" line 398, "pan.___", state 765, "(1)" line 398, "pan.___", state 766, "((cache_dirty_urcu_gp_ctr.bitfield&(1<<0)))" line 398, "pan.___", state 766, "else" line 398, "pan.___", state 769, "(1)" line 402, "pan.___", state 777, "cache_dirty_urcu_active_readers.bitfield = (cache_dirty_urcu_active_readers.bitfield&~((1<<0)))" line 402, "pan.___", state 779, "(1)" line 402, "pan.___", state 780, "((cache_dirty_urcu_active_readers.bitfield&(1<<0)))" line 402, "pan.___", state 780, "else" line 402, "pan.___", state 783, "(1)" line 402, "pan.___", state 784, "(1)" line 402, "pan.___", state 784, "(1)" line 400, "pan.___", state 789, "((i<1))" line 400, "pan.___", state 789, "((i>=1))" line 407, "pan.___", state 795, "cache_dirty_generation_ptr.bitfield = (cache_dirty_generation_ptr.bitfield&~((1<<0)))" line 408, "pan.___", state 808, "(1)" line 408, "pan.___", state 809, "(!((cache_dirty_urcu_gp_ctr.bitfield&(1<<0))))" line 408, "pan.___", state 809, "else" line 408, "pan.___", state 812, "(1)" line 408, "pan.___", state 813, "(1)" line 408, "pan.___", state 813, "(1)" line 412, "pan.___", state 821, "(1)" line 412, "pan.___", state 822, "(!((cache_dirty_urcu_active_readers.bitfield&(1<<0))))" line 412, "pan.___", state 822, "else" line 412, "pan.___", state 825, "(1)" line 412, "pan.___", state 826, "(1)" line 412, "pan.___", state 826, "(1)" line 410, "pan.___", state 831, "((i<1))" line 410, "pan.___", state 831, "((i>=1))" line 417, "pan.___", state 838, "(1)" line 417, "pan.___", state 839, "(!((cache_dirty_generation_ptr.bitfield&(1<<0))))" line 417, "pan.___", state 839, "else" line 417, "pan.___", state 842, "(1)" line 417, "pan.___", state 843, "(1)" line 417, "pan.___", state 843, "(1)" line 419, "pan.___", state 846, "(1)" line 419, "pan.___", state 846, "(1)" line 361, "pan.___", state 855, "sighand_exec = 1" line 402, "pan.___", state 886, "(1)" line 407, "pan.___", state 902, "cache_dirty_generation_ptr.bitfield = (cache_dirty_generation_ptr.bitfield&~((1<<0)))" line 417, "pan.___", state 945, "(1)" line 402, "pan.___", state 983, "(1)" line 407, "pan.___", state 999, "cache_dirty_generation_ptr.bitfield = (cache_dirty_generation_ptr.bitfield&~((1<<0)))" line 417, "pan.___", state 1042, "(1)" line 398, "pan.___", state 1068, "(1)" line 402, "pan.___", state 1082, "(1)" line 407, "pan.___", state 1098, "cache_dirty_generation_ptr.bitfield = (cache_dirty_generation_ptr.bitfield&~((1<<0)))" line 417, "pan.___", state 1141, "(1)" line 402, "pan.___", state 1182, "(1)" line 407, "pan.___", state 1198, "cache_dirty_generation_ptr.bitfield = (cache_dirty_generation_ptr.bitfield&~((1<<0)))" line 417, "pan.___", state 1241, "(1)" line 174, "pan.___", state 1262, "cache_dirty_urcu_gp_ctr.bitfield = (cache_dirty_urcu_gp_ctr.bitfield&~((1<<0)))" line 174, "pan.___", state 1264, "(1)" line 178, "pan.___", state 1271, "cache_dirty_urcu_active_readers.bitfield = (cache_dirty_urcu_active_readers.bitfield&~((1<<0)))" line 178, "pan.___", state 1273, "(1)" line 178, "pan.___", state 1274, "((cache_dirty_urcu_active_readers.bitfield&(1<<0)))" line 178, "pan.___", state 1274, "else" line 176, "pan.___", state 1279, "((j<1))" line 176, "pan.___", state 1279, "((j>=1))" line 182, "pan.___", state 1284, "cache_dirty_generation_ptr.bitfield = (cache_dirty_generation_ptr.bitfield&~((1<<0)))" line 182, "pan.___", state 1286, "(1)" line 182, "pan.___", state 1287, "((cache_dirty_generation_ptr.bitfield&(1<<0)))" line 182, "pan.___", state 1287, "else" line 174, "pan.___", state 1297, "cache_dirty_urcu_gp_ctr.bitfield = (cache_dirty_urcu_gp_ctr.bitfield&~((1<=1))" line 182, "pan.___", state 1319, "cache_dirty_generation_ptr.bitfield = (cache_dirty_generation_ptr.bitfield&~((1<=1))" line 174, "pan.___", state 1336, "cache_dirty_urcu_gp_ctr.bitfield = (cache_dirty_urcu_gp_ctr.bitfield&~((1<<0)))" line 174, "pan.___", state 1338, "(1)" line 178, "pan.___", state 1345, "cache_dirty_urcu_active_readers.bitfield = (cache_dirty_urcu_active_readers.bitfield&~((1<<0)))" line 178, "pan.___", state 1347, "(1)" line 178, "pan.___", state 1348, "((cache_dirty_urcu_active_readers.bitfield&(1<<0)))" line 178, "pan.___", state 1348, "else" line 176, "pan.___", state 1353, "((j<1))" line 176, "pan.___", state 1353, "((j>=1))" line 182, "pan.___", state 1358, "cache_dirty_generation_ptr.bitfield = (cache_dirty_generation_ptr.bitfield&~((1<<0)))" line 182, "pan.___", state 1360, "(1)" line 182, "pan.___", state 1361, "((cache_dirty_generation_ptr.bitfield&(1<<0)))" line 182, "pan.___", state 1361, "else" line 192, "pan.___", state 1366, "((cache_dirty_urcu_gp_ctr.bitfield&(1<<0)))" line 192, "pan.___", state 1366, "else" line 220, "pan.___", state 1367, "((cache_dirty_urcu_gp_ctr.bitfield&(1<<0)))" line 220, "pan.___", state 1367, "else" line 355, "pan.___", state 1373, "((sighand_exec==1))" line 355, "pan.___", state 1373, "else" line 361, "pan.___", state 1376, "sighand_exec = 1" line 398, "pan.___", state 1389, "cache_dirty_urcu_gp_ctr.bitfield = (cache_dirty_urcu_gp_ctr.bitfield&~((1<<0)))" line 398, "pan.___", state 1391, "(1)" line 398, "pan.___", state 1392, "((cache_dirty_urcu_gp_ctr.bitfield&(1<<0)))" line 398, "pan.___", state 1392, "else" line 398, "pan.___", state 1395, "(1)" line 402, "pan.___", state 1403, "cache_dirty_urcu_active_readers.bitfield = (cache_dirty_urcu_active_readers.bitfield&~((1<<0)))" line 402, "pan.___", state 1405, "(1)" line 402, "pan.___", state 1406, "((cache_dirty_urcu_active_readers.bitfield&(1<<0)))" line 402, "pan.___", state 1406, "else" line 402, "pan.___", state 1409, "(1)" line 402, "pan.___", state 1410, "(1)" line 402, "pan.___", state 1410, "(1)" line 400, "pan.___", state 1415, "((i<1))" line 400, "pan.___", state 1415, "((i>=1))" line 407, "pan.___", state 1421, "cache_dirty_generation_ptr.bitfield = (cache_dirty_generation_ptr.bitfield&~((1<<0)))" line 408, "pan.___", state 1434, "(1)" line 408, "pan.___", state 1435, "(!((cache_dirty_urcu_gp_ctr.bitfield&(1<<0))))" line 408, "pan.___", state 1435, "else" line 408, "pan.___", state 1438, "(1)" line 408, "pan.___", state 1439, "(1)" line 408, "pan.___", state 1439, "(1)" line 412, "pan.___", state 1447, "(1)" line 412, "pan.___", state 1448, "(!((cache_dirty_urcu_active_readers.bitfield&(1<<0))))" line 412, "pan.___", state 1448, "else" line 412, "pan.___", state 1451, "(1)" line 412, "pan.___", state 1452, "(1)" line 412, "pan.___", state 1452, "(1)" line 410, "pan.___", state 1457, "((i<1))" line 410, "pan.___", state 1457, "((i>=1))" line 417, "pan.___", state 1464, "(1)" line 417, "pan.___", state 1465, "(!((cache_dirty_generation_ptr.bitfield&(1<<0))))" line 417, "pan.___", state 1465, "else" line 417, "pan.___", state 1468, "(1)" line 417, "pan.___", state 1469, "(1)" line 417, "pan.___", state 1469, "(1)" line 419, "pan.___", state 1472, "(1)" line 419, "pan.___", state 1472, "(1)" line 361, "pan.___", state 1481, "sighand_exec = 1" line 178, "pan.___", state 1506, "(1)" line 182, "pan.___", state 1517, "cache_dirty_generation_ptr.bitfield = (cache_dirty_generation_ptr.bitfield&~((1<<0)))" line 174, "pan.___", state 1530, "cache_dirty_urcu_gp_ctr.bitfield = (cache_dirty_urcu_gp_ctr.bitfield&~((1<