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_progress.ltl | grep -v ^//`)" >> pan.ltl cp urcu_progress_writer_error.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 -f -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) depth 12: Claim reached state 9 (line 748) depth 28: Claim reached state 9 (line 747) (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 enabled) invalid end states - (disabled by never claim) State-vector 56 byte, depth reached 10679, errors: 0 38555 states, stored (92500 visited) 1044204 states, matched 1136704 transitions (= visited+matched) 3867169 atomic steps hash conflicts: 6390 (resolved) Stats on memory usage (in Megabytes): 3.089 equivalent memory usage for states (stored*(State-vector + overhead)) 2.767 actual memory usage for states (compression: 89.58%) state-vector as stored = 47 byte + 28 byte overhead 8.000 memory used for hash table (-w20) 457.764 memory used for DFS stack (-m10000000) 468.498 total actual memory usage unreached in proctype urcu_reader_sig line 403, "pan.___", state 330, "(1)" line 614, "pan.___", state 411, "-end-" (2 of 411 states) unreached in proctype urcu_writer line 399, "pan.___", state 14, "cache_dirty_urcu_gp_ctr.bitfield = (cache_dirty_urcu_gp_ctr.bitfield&~((1<<0)))" line 408, "pan.___", state 46, "cache_dirty_generation_ptr.bitfield = (cache_dirty_generation_ptr.bitfield&~((1<<0)))" line 409, "pan.___", state 59, "(1)" line 418, "pan.___", state 89, "(1)" line 399, "pan.___", state 115, "cache_dirty_urcu_gp_ctr.bitfield = (cache_dirty_urcu_gp_ctr.bitfield&~((1<<0)))" line 409, "pan.___", state 160, "(1)" line 652, "pan.___", state 213, "(1)" line 175, "pan.___", state 222, "cache_dirty_urcu_gp_ctr.bitfield = (cache_dirty_urcu_gp_ctr.bitfield&~((1<<0)))" line 179, "pan.___", state 233, "(1)" line 160, "pan.___", state 254, "(1)" line 164, "pan.___", state 262, "(1)" line 168, "pan.___", state 274, "(1)" line 175, "pan.___", state 285, "cache_dirty_urcu_gp_ctr.bitfield = (cache_dirty_urcu_gp_ctr.bitfield&~((1<=1))" line 408, "pan.___", state 753, "cache_dirty_generation_ptr.bitfield = (cache_dirty_generation_ptr.bitfield&~((1<<0)))" line 409, "pan.___", state 766, "(1)" line 409, "pan.___", state 767, "(!((cache_dirty_urcu_gp_ctr.bitfield&(1<<0))))" line 409, "pan.___", state 767, "else" line 409, "pan.___", state 770, "(1)" line 409, "pan.___", state 771, "(1)" line 409, "pan.___", state 771, "(1)" line 413, "pan.___", state 779, "(1)" line 413, "pan.___", state 780, "(!((cache_dirty_urcu_active_readers.bitfield&(1<<0))))" line 413, "pan.___", state 780, "else" line 413, "pan.___", state 783, "(1)" line 413, "pan.___", state 784, "(1)" line 413, "pan.___", state 784, "(1)" line 411, "pan.___", state 789, "((i<1))" line 411, "pan.___", state 789, "((i>=1))" line 418, "pan.___", state 796, "(1)" line 418, "pan.___", state 797, "(!((cache_dirty_generation_ptr.bitfield&(1<<0))))" line 418, "pan.___", state 797, "else" line 418, "pan.___", state 800, "(1)" line 418, "pan.___", state 801, "(1)" line 418, "pan.___", state 801, "(1)" line 420, "pan.___", state 804, "(1)" line 420, "pan.___", state 804, "(1)" line 356, "pan.___", state 810, "((sighand_exec==1))" line 356, "pan.___", state 810, "else" line 362, "pan.___", state 813, "sighand_exec = 1" line 399, "pan.___", state 826, "cache_dirty_urcu_gp_ctr.bitfield = (cache_dirty_urcu_gp_ctr.bitfield&~((1<<0)))" line 399, "pan.___", state 828, "(1)" line 399, "pan.___", state 829, "((cache_dirty_urcu_gp_ctr.bitfield&(1<<0)))" line 399, "pan.___", state 829, "else" line 399, "pan.___", state 832, "(1)" line 403, "pan.___", state 840, "cache_dirty_urcu_active_readers.bitfield = (cache_dirty_urcu_active_readers.bitfield&~((1<<0)))" line 403, "pan.___", state 842, "(1)" line 403, "pan.___", state 843, "((cache_dirty_urcu_active_readers.bitfield&(1<<0)))" line 403, "pan.___", state 843, "else" line 403, "pan.___", state 846, "(1)" line 403, "pan.___", state 847, "(1)" line 403, "pan.___", state 847, "(1)" line 401, "pan.___", state 852, "((i<1))" line 401, "pan.___", state 852, "((i>=1))" line 408, "pan.___", state 858, "cache_dirty_generation_ptr.bitfield = (cache_dirty_generation_ptr.bitfield&~((1<<0)))" line 409, "pan.___", state 871, "(1)" line 409, "pan.___", state 872, "(!((cache_dirty_urcu_gp_ctr.bitfield&(1<<0))))" line 409, "pan.___", state 872, "else" line 409, "pan.___", state 875, "(1)" line 409, "pan.___", state 876, "(1)" line 409, "pan.___", state 876, "(1)" line 413, "pan.___", state 884, "(1)" line 413, "pan.___", state 885, "(!((cache_dirty_urcu_active_readers.bitfield&(1<<0))))" line 413, "pan.___", state 885, "else" line 413, "pan.___", state 888, "(1)" line 413, "pan.___", state 889, "(1)" line 413, "pan.___", state 889, "(1)" line 411, "pan.___", state 894, "((i<1))" line 411, "pan.___", state 894, "((i>=1))" line 418, "pan.___", state 901, "(1)" line 418, "pan.___", state 902, "(!((cache_dirty_generation_ptr.bitfield&(1<<0))))" line 418, "pan.___", state 902, "else" line 418, "pan.___", state 905, "(1)" line 418, "pan.___", state 906, "(1)" line 418, "pan.___", state 906, "(1)" line 420, "pan.___", state 909, "(1)" line 420, "pan.___", state 909, "(1)" line 362, "pan.___", state 918, "sighand_exec = 1" line 403, "pan.___", state 949, "(1)" line 408, "pan.___", state 965, "cache_dirty_generation_ptr.bitfield = (cache_dirty_generation_ptr.bitfield&~((1<<0)))" line 418, "pan.___", state 1008, "(1)" line 403, "pan.___", state 1046, "(1)" line 408, "pan.___", state 1062, "cache_dirty_generation_ptr.bitfield = (cache_dirty_generation_ptr.bitfield&~((1<<0)))" line 418, "pan.___", state 1105, "(1)" line 399, "pan.___", state 1131, "(1)" line 403, "pan.___", state 1145, "(1)" line 408, "pan.___", state 1161, "cache_dirty_generation_ptr.bitfield = (cache_dirty_generation_ptr.bitfield&~((1<<0)))" line 418, "pan.___", state 1204, "(1)" line 403, "pan.___", state 1245, "(1)" line 408, "pan.___", state 1261, "cache_dirty_generation_ptr.bitfield = (cache_dirty_generation_ptr.bitfield&~((1<<0)))" line 418, "pan.___", state 1304, "(1)" line 399, "pan.___", state 1326, "cache_dirty_urcu_gp_ctr.bitfield = (cache_dirty_urcu_gp_ctr.bitfield&~((1<<0)))" line 399, "pan.___", state 1328, "(1)" line 399, "pan.___", state 1329, "((cache_dirty_urcu_gp_ctr.bitfield&(1<<0)))" line 399, "pan.___", state 1329, "else" line 399, "pan.___", state 1332, "(1)" line 403, "pan.___", state 1340, "cache_dirty_urcu_active_readers.bitfield = (cache_dirty_urcu_active_readers.bitfield&~((1<<0)))" line 403, "pan.___", state 1342, "(1)" line 403, "pan.___", state 1343, "((cache_dirty_urcu_active_readers.bitfield&(1<<0)))" line 403, "pan.___", state 1343, "else" line 403, "pan.___", state 1346, "(1)" line 403, "pan.___", state 1347, "(1)" line 403, "pan.___", state 1347, "(1)" line 401, "pan.___", state 1352, "((i<1))" line 401, "pan.___", state 1352, "((i>=1))" line 408, "pan.___", state 1358, "cache_dirty_generation_ptr.bitfield = (cache_dirty_generation_ptr.bitfield&~((1<<0)))" line 409, "pan.___", state 1371, "(1)" line 409, "pan.___", state 1372, "(!((cache_dirty_urcu_gp_ctr.bitfield&(1<<0))))" line 409, "pan.___", state 1372, "else" line 409, "pan.___", state 1375, "(1)" line 409, "pan.___", state 1376, "(1)" line 409, "pan.___", state 1376, "(1)" line 413, "pan.___", state 1384, "(1)" line 413, "pan.___", state 1385, "(!((cache_dirty_urcu_active_readers.bitfield&(1<<0))))" line 413, "pan.___", state 1385, "else" line 413, "pan.___", state 1388, "(1)" line 413, "pan.___", state 1389, "(1)" line 413, "pan.___", state 1389, "(1)" line 411, "pan.___", state 1394, "((i<1))" line 411, "pan.___", state 1394, "((i>=1))" line 418, "pan.___", state 1401, "(1)" line 418, "pan.___", state 1402, "(!((cache_dirty_generation_ptr.bitfield&(1<<0))))" line 418, "pan.___", state 1402, "else" line 418, "pan.___", state 1405, "(1)" line 418, "pan.___", state 1406, "(1)" line 418, "pan.___", state 1406, "(1)" line 420, "pan.___", state 1409, "(1)" line 420, "pan.___", state 1409, "(1)" line 356, "pan.___", state 1415, "((sighand_exec==1))" line 356, "pan.___", state 1415, "else" line 362, "pan.___", state 1418, "sighand_exec = 1" line 399, "pan.___", state 1431, "cache_dirty_urcu_gp_ctr.bitfield = (cache_dirty_urcu_gp_ctr.bitfield&~((1<<0)))" line 399, "pan.___", state 1433, "(1)" line 399, "pan.___", state 1434, "((cache_dirty_urcu_gp_ctr.bitfield&(1<<0)))" line 399, "pan.___", state 1434, "else" line 399, "pan.___", state 1437, "(1)" line 403, "pan.___", state 1445, "cache_dirty_urcu_active_readers.bitfield = (cache_dirty_urcu_active_readers.bitfield&~((1<<0)))" line 403, "pan.___", state 1447, "(1)" line 403, "pan.___", state 1448, "((cache_dirty_urcu_active_readers.bitfield&(1<<0)))" line 403, "pan.___", state 1448, "else" line 403, "pan.___", state 1451, "(1)" line 403, "pan.___", state 1452, "(1)" line 403, "pan.___", state 1452, "(1)" line 401, "pan.___", state 1457, "((i<1))" line 401, "pan.___", state 1457, "((i>=1))" line 408, "pan.___", state 1463, "cache_dirty_generation_ptr.bitfield = (cache_dirty_generation_ptr.bitfield&~((1<<0)))" line 409, "pan.___", state 1476, "(1)" line 409, "pan.___", state 1477, "(!((cache_dirty_urcu_gp_ctr.bitfield&(1<<0))))" line 409, "pan.___", state 1477, "else" line 409, "pan.___", state 1480, "(1)" line 409, "pan.___", state 1481, "(1)" line 409, "pan.___", state 1481, "(1)" line 413, "pan.___", state 1489, "(1)" line 413, "pan.___", state 1490, "(!((cache_dirty_urcu_active_readers.bitfield&(1<<0))))" line 413, "pan.___", state 1490, "else" line 413, "pan.___", state 1493, "(1)" line 413, "pan.___", state 1494, "(1)" line 413, "pan.___", state 1494, "(1)" line 411, "pan.___", state 1499, "((i<1))" line 411, "pan.___", state 1499, "((i>=1))" line 418, "pan.___", state 1506, "(1)" line 418, "pan.___", state 1507, "(!((cache_dirty_generation_ptr.bitfield&(1<<0))))" line 418, "pan.___", state 1507, "else" line 418, "pan.___", state 1510, "(1)" line 418, "pan.___", state 1511, "(1)" line 418, "pan.___", state 1511, "(1)" line 420, "pan.___", state 1514, "(1)" line 420, "pan.___", state 1514, "(1)" line 362, "pan.___", state 1523, "sighand_exec = 1" line 179, "pan.___", state 1548, "(1)" line 183, "pan.___", state 1559, "cache_dirty_generation_ptr.bitfield = (cache_dirty_generation_ptr.bitfield&~((1<<0)))" line 160, "pan.___", state 1569, "(1)" line 164, "pan.___", state 1577, "(1)" line 168, "pan.___", state 1589, "(1)" line 175, "pan.___", state 1600, "cache_dirty_urcu_gp_ctr.bitfield = (cache_dirty_urcu_gp_ctr.bitfield&~((1<