Execution Chart

We display below the execution chart for this examination (boot time has been removed).

Trace from the execution

Formatting '/data/sdalzilio/mcc2026-input.r016-oct2-177944372600112.qcow2', fmt=qcow2 cluster_size=65536 extended_l2=off compression_type=zlib size=4294967296 backing_file=/data/sdalzilio/mcc2026-input.qcow2 backing_fmt=qcow2 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
...........................
=====================================================================
Generated by BenchKit 2-5973
Executing tool gold2025
Input is Anderson-PT-08, examination is QuasiLiveness
Time confinement is 1800 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r016-oct2-177944372600112
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 1.1M
-rw-r--r-- 1 mcc users 7.1K Mar 4 18:00 CTLCardinality.txt
-rw-r--r-- 1 mcc users 72K Mar 4 18:00 CTLCardinality.xml
-rw-r--r-- 1 mcc users 7.1K Mar 4 18:00 CTLFireability.txt
-rw-r--r-- 1 mcc users 52K Mar 4 18:00 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.1K Mar 15 07:03 LTLCardinality.txt
-rw-r--r-- 1 mcc users 30K Mar 15 07:03 LTLCardinality.xml
-rw-r--r-- 1 mcc users 3.0K Mar 15 07:03 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K Mar 15 07:03 LTLFireability.xml
-rw-r--r-- 1 mcc users 7.9K Mar 4 18:00 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 72K Mar 4 18:00 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 9.0K Mar 4 18:00 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 56K Mar 4 18:00 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K Mar 15 07:03 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.6K Mar 15 07:03 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 equiv_col
-rw-r--r-- 1 mcc users 3 Mar 3 18:30 instance
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 iscolored
-rw-r--r-- 1 mcc users 667K Mar 3 18:30 model.pnml

--------------------
content from stdout:

=== Data for post analysis generated by BenchKit (invocation template)

The expected result is a vector of booleans
BOOL_VECTOR

FORMULA_NAME QuasiLiveness

=== Now, execution of the tool begins

BK_START 1779686787188

Invoking MCC driver with
GOLD_TOOL=
BK_EXAMINATION=QuasiLiveness
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=1800
BK_INPUT=Anderson-PT-08
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
QuasiLiveness PT
Running Version 202505121319
[2026-05-25 05:26:29] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, QuasiLiveness, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 1800]
[2026-05-25 05:26:29] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-25 05:26:29] [INFO ] Load time of PNML (sax parser for PT used): 177 ms
[2026-05-25 05:26:29] [INFO ] Transformed 401 places.
[2026-05-25 05:26:29] [INFO ] Transformed 1328 transitions.
[2026-05-25 05:26:29] [INFO ] Found NUPN structural information;
[2026-05-25 05:26:29] [INFO ] Parsed PT model containing 401 places and 1328 transitions and 5088 arcs in 327 ms.
Starting structural reductions in LIVENESS mode, iteration 0 : 401/401 places, 1328/1328 transitions.
Performed 56 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 0 with 56 Pre rules applied. Total rules applied 0 place count 401 transition count 1272
Deduced a syphon composed of 56 places in 4 ms
Reduce places removed 56 places and 0 transitions.
Iterating global reduction 0 with 112 rules applied. Total rules applied 112 place count 345 transition count 1272
Applied a total of 112 rules in 72 ms. Remains 345 /401 variables (removed 56) and now considering 1272/1328 (removed 56) transitions.
// Phase 1: matrix 1272 rows 345 cols
[2026-05-25 05:26:29] [INFO ] Computed 19 invariants in 68 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 05:26:40] [INFO ] Implicit Places using invariants in 11240 ms returned [0]
Discarding 1 places :
Implicit Place search using SMT only with invariants took 11291 ms to find 1 implicit places.
Starting structural reductions in LIVENESS mode, iteration 1 : 344/401 places, 1272/1328 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 64 transitions
Trivial Post-agglo rules discarded 64 transitions
Performed 64 trivial Post agglomeration. Transition count delta: 64
Iterating post reduction 0 with 64 rules applied. Total rules applied 64 place count 344 transition count 1208
Reduce places removed 64 places and 0 transitions.
Iterating post reduction 1 with 64 rules applied. Total rules applied 128 place count 280 transition count 1208
Applied a total of 128 rules in 31 ms. Remains 280 /344 variables (removed 64) and now considering 1208/1272 (removed 64) transitions.
// Phase 1: matrix 1208 rows 280 cols
[2026-05-25 05:26:40] [INFO ] Computed 18 invariants in 21 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 05:26:45] [INFO ] Implicit Places using invariants in 5106 ms returned []
[2026-05-25 05:26:45] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 05:26:46] [INFO ] State equation strengthened by 104 read => feed constraints.
[2026-05-25 05:26:54] [INFO ] Implicit Places using invariants and state equation in 8141 ms returned []
Implicit Place search using SMT with State Equation took 13283 ms to find 0 implicit places.
Starting structural reductions in LIVENESS mode, iteration 2 : 280/401 places, 1208/1328 transitions.
Finished structural reductions in LIVENESS mode , in 2 iterations and 24697 ms. Remains : 280/401 places, 1208/1328 transitions.
Initial state reduction rules removed 8 formulas.
[2026-05-25 05:26:55] [INFO ] Flatten gal took : 241 ms
RANDOM walk for 40000 steps (8 resets) in 4268 ms. (9 steps per ms) remains 456/1200 properties
BEST_FIRST walk for 404 steps (8 resets) in 9 ms. (40 steps per ms) remains 456/456 properties
BEST_FIRST walk for 404 steps (8 resets) in 21 ms. (18 steps per ms) remains 456/456 properties
BEST_FIRST walk for 404 steps (8 resets) in 8 ms. (44 steps per ms) remains 456/456 properties
BEST_FIRST walk for 404 steps (8 resets) in 8 ms. (44 steps per ms) remains 456/456 properties
BEST_FIRST walk for 404 steps (8 resets) in 8 ms. (44 steps per ms) remains 456/456 properties
BEST_FIRST walk for 404 steps (8 resets) in 9 ms. (40 steps per ms) remains 456/456 properties
BEST_FIRST walk for 404 steps (8 resets) in 12 ms. (31 steps per ms) remains 456/456 properties
BEST_FIRST walk for 404 steps (8 resets) in 7 ms. (50 steps per ms) remains 456/456 properties
BEST_FIRST walk for 404 steps (8 resets) in 9 ms. (40 steps per ms) remains 456/456 properties
BEST_FIRST walk for 404 steps (8 resets) in 9 ms. (40 steps per ms) remains 456/456 properties
BEST_FIRST walk for 404 steps (8 resets) in 19 ms. (20 steps per ms) remains 456/456 properties
[2026-05-25 05:26:55] [INFO ] Flatten gal took : 148 ms
BEST_FIRST walk for 404 steps (8 resets) in 31 ms. (12 steps per ms) remains 456/456 properties
BEST_FIRST walk for 404 steps (8 resets) in 26 ms. (14 steps per ms) remains 456/456 properties
BEST_FIRST walk for 404 steps (8 resets) in 7 ms. (50 steps per ms) remains 456/456 properties
BEST_FIRST walk for 404 steps (8 resets) in 33 ms. (11 steps per ms) remains 456/456 properties
BEST_FIRST walk for 404 steps (8 resets) in 22 ms. (17 steps per ms) remains 456/456 properties
BEST_FIRST walk for 404 steps (8 resets) in 20 ms. (19 steps per ms) remains 456/456 properties
BEST_FIRST walk for 404 steps (8 resets) in 8 ms. (44 steps per ms) remains 456/456 properties
BEST_FIRST walk for 404 steps (8 resets) in 6 ms. (57 steps per ms) remains 456/456 properties
BEST_FIRST walk for 404 steps (8 resets) in 7 ms. (50 steps per ms) remains 456/456 properties
BEST_FIRST walk for 404 steps (8 resets) in 6 ms. (57 steps per ms) remains 456/456 properties
BEST_FIRST walk for 404 steps (8 resets) in 6 ms. (57 steps per ms) remains 456/456 properties
BEST_FIRST walk for 404 steps (8 resets) in 7 ms. (50 steps per ms) remains 456/456 properties
[2026-05-25 05:26:55] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality11845602724768685213.gal : 59 ms
BEST_FIRST walk for 404 steps (8 resets) in 5 ms. (67 steps per ms) remains 456/456 properties
[2026-05-25 05:26:55] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality14344153911890864204.prop : 4 ms
BEST_FIRST walk for 404 steps (8 resets) in 24 ms. (16 steps per ms) remains 456/456 properties
BEST_FIRST walk for 404 steps (8 resets) in 7 ms. (50 steps per ms) remains 456/456 properties
BEST_FIRST walk for 404 steps (8 resets) in 6 ms. (57 steps per ms) remains 456/456 properties
BEST_FIRST walk for 404 steps (8 resets) in 7 ms. (50 steps per ms) remains 456/456 properties
BEST_FIRST walk for 404 steps (8 resets) in 8 ms. (44 steps per ms) remains 456/456 properties
BEST_FIRST walk for 404 steps (8 resets) in 5 ms. (67 steps per ms) remains 456/456 properties
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality11845602724768685213.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality14344153911890864204.prop' '--nowitness' '--gen-order' 'FOLLOW'
BEST_FIRST walk for 404 steps (8 resets) in 10 ms. (36 steps per ms) remains 456/456 properties
BEST_FIRST walk for 404 steps (8 resets) in 7 ms. (50 steps per ms) remains 456/456 properties
BEST_FIRST walk for 404 steps (8 resets) in 6 ms. (57 steps per ms) remains 456/456 properties
BEST_FIRST walk for 404 steps (8 resets) in 9 ms. (40 steps per ms) remains 456/456 properties
BEST_FIRST walk for 404 steps (8 resets) in 6 ms. (57 steps per ms) remains 456/456 properties

BEST_FIRST walk for 404 steps (8 resets) in 6 ms. (57 steps per ms) remains 456/456 properties
BEST_FIRST walk for 404 steps (8 resets) in 6 ms. (57 steps per ms) remains 456/456 properties
BEST_FIRST walk for 404 steps (8 resets) in 6 ms. (57 steps per ms) remains 456/456 properties
BEST_FIRST walk for 404 steps (8 resets) in 6 ms. (57 steps per ms) remains 456/456 properties
its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...330
BEST_FIRST walk for 404 steps (8 resets) in 5 ms. (67 steps per ms) remains 456/456 properties
BEST_FIRST walk for 404 steps (8 resets) in 6 ms. (57 steps per ms) remains 456/456 properties
BEST_FIRST walk for 404 steps (8 resets) in 6 ms. (57 steps per ms) remains 456/456 properties
BEST_FIRST walk for 404 steps (8 resets) in 6 ms. (57 steps per ms) remains 456/456 properties
BEST_FIRST walk for 404 steps (8 resets) in 6 ms. (57 steps per ms) remains 456/456 properties
BEST_FIRST walk for 404 steps (8 resets) in 7 ms. (50 steps per ms) remains 456/456 properties
BEST_FIRST walk for 404 steps (8 resets) in 6 ms. (57 steps per ms) remains 456/456 properties
BEST_FIRST walk for 404 steps (8 resets) in 6 ms. (57 steps per ms) remains 456/456 properties
BEST_FIRST walk for 404 steps (8 resets) in 26 ms. (14 steps per ms) remains 456/456 properties
BEST_FIRST walk for 404 steps (8 resets) in 23 ms. (16 steps per ms) remains 456/456 properties
BEST_FIRST walk for 404 steps (8 resets) in 23 ms. (16 steps per ms) remains 456/456 properties
Loading property file /tmp/ReachabilityCardinality14344153911890864204.prop.
[2026-05-25 05:26:55] [INFO ] Invariant cache hit.
[2026-05-25 05:26:55] [INFO ] State equation strengthened by 104 read => feed constraints.
SDD proceeding with computation,456 properties remain. new max is 4
SDD size :1 after 3
SDD proceeding with computation,456 properties remain. new max is 8
SDD size :3 after 6
SDD proceeding with computation,456 properties remain. new max is 16
SDD size :6 after 9
SDD proceeding with computation,456 properties remain. new max is 32
SDD size :9 after 22
SDD proceeding with computation,456 properties remain. new max is 64
SDD size :22 after 32
Reachability property qltransition_140 is true.
Reachability property qltransition_20 is true.
SDD proceeding with computation,454 properties remain. new max is 64
SDD size :32 after 262
SDD proceeding with computation,454 properties remain. new max is 128
SDD size :262 after 394
Reachability property qltransition_141 is true.
Reachability property qltransition_21 is true.
SDD proceeding with computation,452 properties remain. new max is 128
SDD size :394 after 1628
SDD proceeding with computation,452 properties remain. new max is 256
SDD size :1628 after 1959
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
SDD proceeding with computation,452 properties remain. new max is 512
SDD size :1959 after 6790
Reachability property qltransition_621 is true.
Reachability property qltransition_620 is true.
SDD proceeding with computation,450 properties remain. new max is 512
SDD size :6790 after 12550
SDD proceeding with computation,450 properties remain. new max is 1024
SDD size :12550 after 31000
Reachability property qltransition_740 is true.
SDD proceeding with computation,449 properties remain. new max is 1024
SDD size :31000 after 49001
At refinement iteration 0 (INCLUDED_ONLY) 0/117 variables, 117/117 constraints. Problems are: Problem set: 4 solved, 452 unsolved
SDD proceeding with computation,449 properties remain. new max is 2048
SDD size :49001 after 121320
At refinement iteration 1 (INCLUDED_ONLY) 0/117 variables, 1/118 constraints. Problems are: Problem set: 7 solved, 449 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 117/1488 variables, and 118 constraints, problems are : Problem set: 7 solved, 449 unsolved in 5050 ms.
Refiners :[Domain max(s): 117/280 constraints, Positive P Invariants (semi-flows): 0/9 constraints, Generalized P Invariants (flows): 1/9 constraints, State Equation: 0/280 constraints, ReadFeed: 0/104 constraints, PredecessorRefiner: 456/456 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 7 solved, 449 unsolved
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/117 variables, 117/117 constraints. Problems are: Problem set: 7 solved, 449 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/117 variables, 1/118 constraints. Problems are: Problem set: 7 solved, 449 unsolved
SDD proceeding with computation,449 properties remain. new max is 4096
SDD size :121320 after 172837
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 117/1488 variables, and 118 constraints, problems are : Problem set: 7 solved, 449 unsolved in 5020 ms.
Refiners :[Domain max(s): 117/280 constraints, Positive P Invariants (semi-flows): 0/9 constraints, Generalized P Invariants (flows): 1/9 constraints, State Equation: 0/280 constraints, ReadFeed: 0/104 constraints, PredecessorRefiner: 0/456 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 10994ms problems are : Problem set: 7 solved, 449 unsolved
Skipping Parikh replay, no witness traces provided.
Support contains 117 out of 280 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 280/280 places, 1208/1208 transitions.
Discarding 31 places :
Symmetric choice reduction at 0 with 31 rule applications. Total rules 31 place count 249 transition count 1177
Iterating global reduction 0 with 31 rules applied. Total rules applied 62 place count 249 transition count 1177
Applied a total of 62 rules in 65 ms. Remains 249 /280 variables (removed 31) and now considering 1177/1208 (removed 31) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 66 ms. Remains : 249/280 places, 1177/1208 transitions.
Reachability property qltransition_877 is true.
Reachability property qltransition_861 is true.
Reachability property qltransition_860 is true.
Reachability property qltransition_859 is true.
Reachability property qltransition_756 is true.
Reachability property qltransition_755 is true.
Reachability property qltransition_754 is true.
Reachability property qltransition_636 is true.
Reachability property qltransition_517 is true.
Reachability property qltransition_516 is true.
Reachability property qltransition_396 is true.
Reachability property qltransition_277 is true.
Reachability property qltransition_157 is true.
Reachability property qltransition_37 is true.
Reachability property qltransition_36 is true.
Reachability property qltransition_35 is true.
SDD proceeding with computation,433 properties remain. new max is 4096
SDD size :172837 after 1.44016e+06
SDD proceeding with computation,433 properties remain. new max is 8192
SDD size :1.44016e+06 after 1.63709e+06
RANDOM walk for 4000000 steps (8 resets) in 73503 ms. (54 steps per ms) remains 123/449 properties
BEST_FIRST walk for 40003 steps (8 resets) in 247 ms. (161 steps per ms) remains 116/123 properties
BEST_FIRST walk for 40003 steps (8 resets) in 294 ms. (135 steps per ms) remains 116/116 properties
BEST_FIRST walk for 40004 steps (8 resets) in 286 ms. (139 steps per ms) remains 113/116 properties
BEST_FIRST walk for 40003 steps (8 resets) in 304 ms. (131 steps per ms) remains 111/113 properties
BEST_FIRST walk for 40003 steps (8 resets) in 373 ms. (106 steps per ms) remains 111/111 properties
BEST_FIRST walk for 40002 steps (8 resets) in 264 ms. (150 steps per ms) remains 110/111 properties
BEST_FIRST walk for 40003 steps (8 resets) in 270 ms. (147 steps per ms) remains 110/110 properties
BEST_FIRST walk for 40003 steps (8 resets) in 313 ms. (127 steps per ms) remains 105/110 properties
BEST_FIRST walk for 40004 steps (8 resets) in 234 ms. (170 steps per ms) remains 101/105 properties
BEST_FIRST walk for 40003 steps (8 resets) in 275 ms. (144 steps per ms) remains 98/101 properties
BEST_FIRST walk for 40003 steps (8 resets) in 273 ms. (145 steps per ms) remains 98/98 properties
BEST_FIRST walk for 40003 steps (8 resets) in 245 ms. (162 steps per ms) remains 98/98 properties
BEST_FIRST walk for 40004 steps (8 resets) in 215 ms. (185 steps per ms) remains 96/98 properties
BEST_FIRST walk for 40003 steps (8 resets) in 207 ms. (192 steps per ms) remains 96/96 properties
BEST_FIRST walk for 40004 steps (8 resets) in 168 ms. (236 steps per ms) remains 96/96 properties
BEST_FIRST walk for 40002 steps (8 resets) in 217 ms. (183 steps per ms) remains 96/96 properties
BEST_FIRST walk for 40004 steps (8 resets) in 182 ms. (218 steps per ms) remains 85/96 properties
BEST_FIRST walk for 40002 steps (8 resets) in 172 ms. (231 steps per ms) remains 80/85 properties
BEST_FIRST walk for 40003 steps (8 resets) in 193 ms. (206 steps per ms) remains 79/80 properties
BEST_FIRST walk for 40003 steps (8 resets) in 129 ms. (307 steps per ms) remains 79/79 properties
BEST_FIRST walk for 40002 steps (8 resets) in 150 ms. (264 steps per ms) remains 78/79 properties
BEST_FIRST walk for 40002 steps (8 resets) in 200 ms. (199 steps per ms) remains 77/78 properties
BEST_FIRST walk for 40003 steps (8 resets) in 205 ms. (194 steps per ms) remains 77/77 properties
BEST_FIRST walk for 40001 steps (8 resets) in 152 ms. (261 steps per ms) remains 77/77 properties
BEST_FIRST walk for 40003 steps (8 resets) in 228 ms. (174 steps per ms) remains 77/77 properties
BEST_FIRST walk for 40003 steps (8 resets) in 148 ms. (268 steps per ms) remains 77/77 properties
BEST_FIRST walk for 40003 steps (8 resets) in 144 ms. (275 steps per ms) remains 67/77 properties
BEST_FIRST walk for 40004 steps (8 resets) in 179 ms. (222 steps per ms) remains 67/67 properties
BEST_FIRST walk for 40003 steps (8 resets) in 115 ms. (344 steps per ms) remains 66/67 properties
BEST_FIRST walk for 40004 steps (8 resets) in 185 ms. (215 steps per ms) remains 65/66 properties
BEST_FIRST walk for 40003 steps (8 resets) in 184 ms. (216 steps per ms) remains 63/65 properties
BEST_FIRST walk for 40003 steps (8 resets) in 143 ms. (277 steps per ms) remains 61/63 properties
BEST_FIRST walk for 40003 steps (8 resets) in 216 ms. (184 steps per ms) remains 61/61 properties
BEST_FIRST walk for 40003 steps (8 resets) in 131 ms. (303 steps per ms) remains 60/61 properties
BEST_FIRST walk for 40002 steps (8 resets) in 145 ms. (273 steps per ms) remains 58/60 properties
BEST_FIRST walk for 40004 steps (8 resets) in 141 ms. (281 steps per ms) remains 58/58 properties
BEST_FIRST walk for 40004 steps (8 resets) in 152 ms. (261 steps per ms) remains 55/58 properties
BEST_FIRST walk for 40003 steps (8 resets) in 125 ms. (317 steps per ms) remains 54/55 properties
BEST_FIRST walk for 40003 steps (8 resets) in 118 ms. (336 steps per ms) remains 53/54 properties
BEST_FIRST walk for 40002 steps (8 resets) in 186 ms. (213 steps per ms) remains 53/53 properties
BEST_FIRST walk for 40002 steps (8 resets) in 196 ms. (203 steps per ms) remains 52/53 properties
BEST_FIRST walk for 40002 steps (8 resets) in 135 ms. (294 steps per ms) remains 52/52 properties
BEST_FIRST walk for 40002 steps (8 resets) in 154 ms. (258 steps per ms) remains 51/52 properties
BEST_FIRST walk for 40002 steps (8 resets) in 173 ms. (229 steps per ms) remains 50/51 properties
BEST_FIRST walk for 40004 steps (8 resets) in 140 ms. (283 steps per ms) remains 50/50 properties
BEST_FIRST walk for 40003 steps (8 resets) in 106 ms. (373 steps per ms) remains 47/50 properties
BEST_FIRST walk for 40003 steps (8 resets) in 155 ms. (256 steps per ms) remains 46/47 properties
BEST_FIRST walk for 40003 steps (8 resets) in 170 ms. (233 steps per ms) remains 45/46 properties
BEST_FIRST walk for 40004 steps (8 resets) in 177 ms. (224 steps per ms) remains 45/45 properties
BEST_FIRST walk for 40002 steps (8 resets) in 138 ms. (287 steps per ms) remains 45/45 properties
BEST_FIRST walk for 40002 steps (8 resets) in 120 ms. (330 steps per ms) remains 45/45 properties
BEST_FIRST walk for 40001 steps (8 resets) in 207 ms. (192 steps per ms) remains 43/45 properties
BEST_FIRST walk for 40003 steps (8 resets) in 123 ms. (322 steps per ms) remains 43/43 properties
BEST_FIRST walk for 40004 steps (8 resets) in 148 ms. (268 steps per ms) remains 40/43 properties
BEST_FIRST walk for 40002 steps (8 resets) in 125 ms. (317 steps per ms) remains 40/40 properties
BEST_FIRST walk for 40003 steps (8 resets) in 129 ms. (307 steps per ms) remains 40/40 properties
BEST_FIRST walk for 40002 steps (8 resets) in 119 ms. (333 steps per ms) remains 38/40 properties
BEST_FIRST walk for 40004 steps (8 resets) in 113 ms. (350 steps per ms) remains 38/38 properties
BEST_FIRST walk for 40004 steps (8 resets) in 145 ms. (274 steps per ms) remains 38/38 properties
BEST_FIRST walk for 40002 steps (8 resets) in 153 ms. (259 steps per ms) remains 34/38 properties
BEST_FIRST walk for 40003 steps (8 resets) in 167 ms. (238 steps per ms) remains 33/34 properties
BEST_FIRST walk for 40003 steps (8 resets) in 157 ms. (253 steps per ms) remains 33/33 properties
BEST_FIRST walk for 40004 steps (8 resets) in 153 ms. (259 steps per ms) remains 32/33 properties
BEST_FIRST walk for 40002 steps (8 resets) in 126 ms. (314 steps per ms) remains 32/32 properties
BEST_FIRST walk for 40004 steps (8 resets) in 184 ms. (216 steps per ms) remains 30/32 properties
// Phase 1: matrix 1177 rows 249 cols
[2026-05-25 05:27:32] [INFO ] Computed 18 invariants in 9 ms
[2026-05-25 05:27:32] [INFO ] State equation strengthened by 81 read => feed constraints.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/24 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 30 unsolved
At refinement iteration 1 (OVERLAPS) 203/227 variables, 8/8 constraints. Problems are: Problem set: 0 solved, 30 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/227 variables, 0/8 constraints. Problems are: Problem set: 0 solved, 30 unsolved
At refinement iteration 3 (OVERLAPS) 21/248 variables, 9/17 constraints. Problems are: Problem set: 0 solved, 30 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 05:27:33] [INFO ] Deduced a trap composed of 32 places in 359 ms of which 26 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 05:27:33] [INFO ] Deduced a trap composed of 32 places in 277 ms of which 37 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 05:27:33] [INFO ] Deduced a trap composed of 33 places in 205 ms of which 22 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 05:27:33] [INFO ] Deduced a trap composed of 33 places in 210 ms of which 22 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/248 variables, 4/21 constraints. Problems are: Problem set: 0 solved, 30 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/248 variables, 0/21 constraints. Problems are: Problem set: 0 solved, 30 unsolved
At refinement iteration 6 (OVERLAPS) 1/249 variables, 1/22 constraints. Problems are: Problem set: 0 solved, 30 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/249 variables, 0/22 constraints. Problems are: Problem set: 0 solved, 30 unsolved
At refinement iteration 8 (OVERLAPS) 1177/1426 variables, 249/271 constraints. Problems are: Problem set: 0 solved, 30 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/1426 variables, 81/352 constraints. Problems are: Problem set: 0 solved, 30 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/1426 variables, 0/352 constraints. Problems are: Problem set: 0 solved, 30 unsolved
At refinement iteration 11 (OVERLAPS) 0/1426 variables, 0/352 constraints. Problems are: Problem set: 0 solved, 30 unsolved
No progress, stopping.
After SMT solving in domain Real declared 1426/1426 variables, and 352 constraints, problems are : Problem set: 0 solved, 30 unsolved in 7932 ms.
Refiners :[Positive P Invariants (semi-flows): 9/9 constraints, Generalized P Invariants (flows): 9/9 constraints, State Equation: 249/249 constraints, ReadFeed: 81/81 constraints, PredecessorRefiner: 30/30 constraints, Known Traps: 4/4 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 30 unsolved
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/24 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 30 unsolved
At refinement iteration 1 (OVERLAPS) 203/227 variables, 8/8 constraints. Problems are: Problem set: 0 solved, 30 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/227 variables, 0/8 constraints. Problems are: Problem set: 0 solved, 30 unsolved
At refinement iteration 3 (OVERLAPS) 21/248 variables, 9/17 constraints. Problems are: Problem set: 0 solved, 30 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/248 variables, 4/21 constraints. Problems are: Problem set: 0 solved, 30 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/248 variables, 0/21 constraints. Problems are: Problem set: 0 solved, 30 unsolved
At refinement iteration 6 (OVERLAPS) 1/249 variables, 1/22 constraints. Problems are: Problem set: 0 solved, 30 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/249 variables, 0/22 constraints. Problems are: Problem set: 0 solved, 30 unsolved
At refinement iteration 8 (OVERLAPS) 1177/1426 variables, 249/271 constraints. Problems are: Problem set: 0 solved, 30 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/1426 variables, 81/352 constraints. Problems are: Problem set: 0 solved, 30 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/1426 variables, 30/382 constraints. Problems are: Problem set: 0 solved, 30 unsolved
Reachability property qltransition_850 is true.
Reachability property qltransition_730 is true.
Reachability property qltransition_640 is true.
Reachability property qltransition_610 is true.
At refinement iteration 11 (INCLUDED_ONLY) 0/1426 variables, 0/382 constraints. Problems are: Problem set: 0 solved, 30 unsolved
Reachability property qltransition_505 is true.
Reachability property qltransition_490 is true.
Reachability property qltransition_130 is true.
Reachability property qltransition_10 is true.
SDD proceeding with computation,425 properties remain. new max is 8192
SDD size :1.63709e+06 after 4.3215e+06
At refinement iteration 12 (OVERLAPS) 0/1426 variables, 0/382 constraints. Problems are: Problem set: 0 solved, 30 unsolved
No progress, stopping.
SDD proceeding with computation,425 properties remain. new max is 16384
SDD size :4.3215e+06 after 4.37874e+06
After SMT solving in domain Int declared 1426/1426 variables, and 382 constraints, problems are : Problem set: 0 solved, 30 unsolved in 17844 ms.
Refiners :[Positive P Invariants (semi-flows): 9/9 constraints, Generalized P Invariants (flows): 9/9 constraints, State Equation: 249/249 constraints, ReadFeed: 81/81 constraints, PredecessorRefiner: 30/30 constraints, Known Traps: 4/4 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 25850ms problems are : Problem set: 0 solved, 30 unsolved
Reachability property qltransition_895 is true.
Reachability property qltransition_893 is true.
Reachability property qltransition_892 is true.
Reachability property qltransition_885 is true.
Reachability property qltransition_776 is true.
Reachability property qltransition_765 is true.
Reachability property qltransition_654 is true.
Reachability property qltransition_653 is true.
Reachability property qltransition_645 is true.
Reachability property qltransition_533 is true.
Reachability property qltransition_525 is true.
Reachability property qltransition_416 is true.
Reachability property qltransition_414 is true.
Reachability property qltransition_413 is true.
Reachability property qltransition_412 is true.
Reachability property qltransition_411 is true.
Reachability property qltransition_405 is true.
Reachability property qltransition_294 is true.
Reachability property qltransition_176 is true.
Reachability property qltransition_175 is true.
Reachability property qltransition_174 is true.
Reachability property qltransition_173 is true.
Reachability property qltransition_172 is true.
Reachability property qltransition_165 is true.
Reachability property qltransition_54 is true.
Reachability property qltransition_53 is true.
Reachability property qltransition_52 is true.
Reachability property qltransition_45 is true.
SDD proceeding with computation,397 properties remain. new max is 16384
SDD size :4.37874e+06 after 6.35709e+06
Parikh walk visited 23 properties in 33469 ms.
Support contains 8 out of 249 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 249/249 places, 1177/1177 transitions.
Discarding 75 places :
Symmetric choice reduction at 0 with 75 rule applications. Total rules 75 place count 174 transition count 402
Iterating global reduction 0 with 75 rules applied. Total rules applied 150 place count 174 transition count 402
Applied a total of 150 rules in 31 ms. Remains 174 /249 variables (removed 75) and now considering 402/1177 (removed 775) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 31 ms. Remains : 174/249 places, 402/1177 transitions.
RANDOM walk for 4000000 steps (8 resets) in 13869 ms. (288 steps per ms) remains 6/7 properties
BEST_FIRST walk for 4000001 steps (8 resets) in 4396 ms. (909 steps per ms) remains 5/6 properties
BEST_FIRST walk for 4000002 steps (8 resets) in 4834 ms. (827 steps per ms) remains 4/5 properties
BEST_FIRST walk for 4000003 steps (8 resets) in 3721 ms. (1074 steps per ms) remains 3/4 properties
BEST_FIRST walk for 4000004 steps (8 resets) in 3209 ms. (1246 steps per ms) remains 1/3 properties
BEST_FIRST walk for 658390 steps (0 resets) in 480 ms. (1368 steps per ms) remains 0/1 properties
ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
Able to resolve query QuasiLiveness after proving 1208 properties.
FORMULA QuasiLiveness TRUE TECHNIQUES RANDOM_WALK PARIKH_WALK DECISION_DIAGRAMS COLLATERAL_PROCESSING BESTFIRST_WALK TOPOLOGICAL INITIAL_STATE
Total runtime 131919 ms.

BK_STOP 1779686921033

--------------------
content from stderr:

+ export BINDIR=/home/mcc/BenchKit/bin//../itstools/bin//../
+ BINDIR=/home/mcc/BenchKit/bin//../itstools/bin//../
++ pwd
+ export MODEL=/home/mcc/execution
+ MODEL=/home/mcc/execution
+ [[ QuasiLiveness = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution QuasiLiveness -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 1800
+ ulimit -s 65536
+ [[ -z '' ]]
+ export LTSMIN_MEM_SIZE=8589934592
+ LTSMIN_MEM_SIZE=8589934592
++ perl -pe 's/.*\.//g'
++ sed s/.jar//
++ ls /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202505121319.jar
+ VERSION=202505121319
+ echo 'Running Version 202505121319'
+ /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/its-tools -pnfolder /home/mcc/execution -examination QuasiLiveness -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 1800

Sequence of Actions to be Executed by the VM

This is useful if one wants to reexecute the tool in the VM from the submitted image disk.

set -x
# this is for BenchKit: configuration of major elements for the test
export BK_INPUT="Anderson-PT-08"
export BK_EXAMINATION="QuasiLiveness"
export BK_TOOL="gold2025"
export BK_RESULT_DIR="/tmp/BK_RESULTS/OUTPUTS"
export BK_TIME_CONFINEMENT="1800"
export BK_MEMORY_CONFINEMENT="16384"
export BK_BIN_PATH="/home/mcc/BenchKit/bin/"

# this is specific to your benchmark or test

export BIN_DIR="$HOME/BenchKit/bin"

# remove the execution directoty if it exists (to avoid increse of .vmdk images)
if [ -d execution ] ; then
rm -rf execution
fi

# this is for BenchKit: explicit launching of the test
echo "====================================================================="
echo " Generated by BenchKit 2-5973"
echo " Executing tool gold2025"
echo " Input is Anderson-PT-08, examination is QuasiLiveness"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r016-oct2-177944372600112"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/Anderson-PT-08.tgz
mv Anderson-PT-08 execution
cd execution
if [ "QuasiLiveness" = "ReachabilityDeadlock" ] || [ "QuasiLiveness" = "UpperBounds" ] || [ "QuasiLiveness" = "QuasiLiveness" ] || [ "QuasiLiveness" = "StableMarking" ] || [ "QuasiLiveness" = "Liveness" ] || [ "QuasiLiveness" = "OneSafe" ] || [ "QuasiLiveness" = "StateSpace" ]; then
rm -f GenericPropertiesVerdict.xml
fi
pwd
ls -lh

echo
echo "--------------------"
echo "content from stdout:"
echo
echo "=== Data for post analysis generated by BenchKit (invocation template)"
echo
if [ "QuasiLiveness" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "QuasiLiveness" != "StateSpace" ] ; then
echo "The expected result is a vector of booleans"
echo BOOL_VECTOR
else
echo "no data necessary for post analysis"
fi
echo
if [ -f "QuasiLiveness.xml" ] ; then # for cunf (txt files deleted;-)
echo echo "here is the order used to build the result vector(from xml file)"
for x in $(grep '' QuasiLiveness.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "QuasiLiveness" = "ReachabilityDeadlock" ] || [ "QuasiLiveness" = "QuasiLiveness" ] || [ "QuasiLiveness" = "StableMarking" ] || [ "QuasiLiveness" = "Liveness" ] || [ "QuasiLiveness" = "OneSafe" ] ; then
echo "FORMULA_NAME QuasiLiveness"
fi
echo
echo "=== Now, execution of the tool begins"
echo
echo -n "BK_START "
date -u +%s%3N
echo
timeout -s 9 $BK_TIME_CONFINEMENT bash -c "/home/mcc/BenchKit/BenchKit_head.sh 2> STDERR ; echo ; echo -n \"BK_STOP \" ; date -u +%s%3N"
if [ $? -eq 137 ] ; then
echo
echo "BK_TIME_CONFINEMENT_REACHED"
fi
echo
echo "--------------------"
echo "content from stderr:"
echo
cat STDERR ;