Execution Chart

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

Trace from the execution

Formatting '/data/fkordon/mcc2026-input.r088-smll-177946995200142.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2026-input.qcow2 backing_fmt=qcow2 cluster_size=65536 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
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=====================================================================
Generated by BenchKit 2-5973
Executing tool itstools
Input is DBSingleClientW-PT-d2m08, examination is QuasiLiveness
Time confinement is 1800 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r088-smll-177946995200142
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 2.0M
-rw-r--r-- 1 mcc users 6.7K Mar 6 18:22 CTLCardinality.txt
-rw-r--r-- 1 mcc users 69K Mar 6 18:22 CTLCardinality.xml
-rw-r--r-- 1 mcc users 4.8K Mar 6 18:22 CTLFireability.txt
-rw-r--r-- 1 mcc users 38K Mar 6 18:22 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.0K Mar 15 08:50 LTLCardinality.txt
-rw-r--r-- 1 mcc users 26K Mar 15 08:50 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.4K Mar 15 08:51 LTLFireability.txt
-rw-r--r-- 1 mcc users 19K Mar 15 08:51 LTLFireability.xml
-rw-r--r-- 1 mcc users 9.7K Mar 6 18:22 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 98K Mar 6 18:22 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 8.1K Mar 6 18:22 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 66K Mar 6 18:22 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K Mar 15 08:51 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.8K Mar 15 08:51 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 equiv_col
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 instance
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 iscolored
-rw-r--r-- 1 mcc users 1.6M 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 1779492034072

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=QuasiLiveness
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=1800
BK_INPUT=DBSingleClientW-PT-d2m08
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
QuasiLiveness PT
Running Version 202604301425
[2026-05-22 23:20:36] [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]
[2026-05-22 23:20:36] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-22 23:20:36] [INFO ] Load time of PNML (sax parser for PT used): 420 ms
[2026-05-22 23:20:36] [INFO ] Transformed 4763 places.
[2026-05-22 23:20:36] [INFO ] Transformed 2478 transitions.
[2026-05-22 23:20:36] [INFO ] Parsed PT model containing 4763 places and 2478 transitions and 9912 arcs in 624 ms.
Starting structural reductions in LIVENESS mode, iteration 0 : 4763/4763 places, 2478/2478 transitions.
Reduce places removed 3626 places and 0 transitions.
Ensure Unique test removed 199 transitions
Reduce isomorphic transitions removed 199 transitions.
Iterating post reduction 0 with 3825 rules applied. Total rules applied 3825 place count 1137 transition count 2279
Applied a total of 3825 rules in 187 ms. Remains 1137 /4763 variables (removed 3626) and now considering 2279/2478 (removed 199) transitions.
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-7067937959246515698.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-11854040383571158533.kers'
[2026-05-22 23:20:37] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-7067937959246515698.kers, --Pflows, --basisKERS=/tmp/petrispot-output-11854040383571158533.kers]
Culled 0 columns in 1 ms.
// Phase 1: matrix 2279 rows 1137 cols 6262 entries
Finished phase 1 with 1133 SingleSign rule and 2 generalized
[2026-05-22 23:20:37] [INFO ] Computed 2 invariants in 20 ms
Computed 2 P flows in 21 ms.
Exported basis to /tmp/petrispot-output-11854040383571158533.kers
Total runtime 23 ms.
[2026-05-22 23:20:38] [INFO ] Implicit Places using invariants in 1723 ms returned []
[2026-05-22 23:20:38] [INFO ] Invariant cache hit.
[2026-05-22 23:20:40] [INFO ] State equation strengthened by 1389 read => feed constraints.
[2026-05-22 23:21:11] [INFO ] Performed 1107/1137 implicitness test of which 0 returned IMPLICIT in 30 seconds.
[2026-05-22 23:21:11] [INFO ] Implicit Places using invariants and state equation in 33207 ms returned []
Implicit Place search using SMT with State Equation took 34990 ms to find 0 implicit places.
Running 2278 sub problems to find dead transitions.
[2026-05-22 23:21:12] [INFO ] Invariant cache hit.
[2026-05-22 23:21:12] [INFO ] State equation strengthened by 1389 read => feed constraints.
Excessive predecessor constraint size, skipping predecessor.
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 1136/3416 variables, and 0 constraints, problems are : Problem set: 0 solved, 2278 unsolved in 30160 ms.
Refiners :[Positive P Invariants (semi-flows): 0/1 constraints, Generalized P Invariants (flows): 0/1 constraints, State Equation: 0/1137 constraints, ReadFeed: 0/1389 constraints, PredecessorRefiner: 2278/462 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 2278 unsolved
Error getting values : (error "Timeout of Z3 solver reached")
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1136/3416 variables, and 0 constraints, problems are : Problem set: 0 solved, 2278 unsolved in 30089 ms.
Refiners :[Positive P Invariants (semi-flows): 0/1 constraints, Generalized P Invariants (flows): 0/1 constraints, State Equation: 0/1137 constraints, ReadFeed: 0/1389 constraints, PredecessorRefiner: 1816/462 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 66403ms problems are : Problem set: 0 solved, 2278 unsolved
Search for dead transitions found 0 dead transitions in 66480ms
Starting structural reductions in LIVENESS mode, iteration 1 : 1137/4763 places, 2279/2478 transitions.
Finished structural reductions in LIVENESS mode , in 1 iterations and 101767 ms. Remains : 1137/4763 places, 2279/2478 transitions.
Discarding 1145 transitions out of 2279. Remains 1134
Initial state reduction rules removed 1 formulas.
[2026-05-22 23:22:20] [INFO ] Flatten gal took : 690 ms
[2026-05-22 23:22:20] [INFO ] Flatten gal took : 482 ms
[2026-05-22 23:22:21] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality9687950034375707961.gal : 124 ms
[2026-05-22 23:22:21] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality17414912371747850023.prop : 38 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202604301425/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality9687950034375707961.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality17414912371747850023.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202604301425/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...329
Loading property file /tmp/ReachabilityCardinality17414912371747850023.prop.
RANDOM walk for 40000 steps (9168 resets) in 14304 ms. (2 steps per ms) remains 1057/1133 properties
BEST_FIRST walk for 123 steps (9 resets) in 22 ms. (5 steps per ms) remains 1057/1057 properties
BEST_FIRST walk for 124 steps (9 resets) in 17 ms. (6 steps per ms) remains 1057/1057 properties
BEST_FIRST walk for 123 steps (10 resets) in 17 ms. (6 steps per ms) remains 1057/1057 properties
BEST_FIRST walk for 124 steps (9 resets) in 42 ms. (2 steps per ms) remains 1057/1057 properties
BEST_FIRST walk for 124 steps (9 resets) in 32 ms. (3 steps per ms) remains 1057/1057 properties
BEST_FIRST walk for 123 steps (9 resets) in 36 ms. (3 steps per ms) remains 1057/1057 properties
BEST_FIRST walk for 121 steps (11 resets) in 37 ms. (3 steps per ms) remains 1057/1057 properties
BEST_FIRST walk for 124 steps (8 resets) in 12 ms. (9 steps per ms) remains 1057/1057 properties
BEST_FIRST walk for 122 steps (10 resets) in 12 ms. (9 steps per ms) remains 1057/1057 properties
BEST_FIRST walk for 124 steps (9 resets) in 14 ms. (8 steps per ms) remains 1057/1057 properties
BEST_FIRST walk for 123 steps (10 resets) in 11 ms. (10 steps per ms) remains 1057/1057 properties
BEST_FIRST walk for 123 steps (10 resets) in 12 ms. (9 steps per ms) remains 1057/1057 properties
BEST_FIRST walk for 122 steps (10 resets) in 13 ms. (8 steps per ms) remains 1057/1057 properties
BEST_FIRST walk for 122 steps (10 resets) in 12 ms. (9 steps per ms) remains 1057/1057 properties
BEST_FIRST walk for 123 steps (9 resets) in 11 ms. (10 steps per ms) remains 1057/1057 properties
BEST_FIRST walk for 122 steps (10 resets) in 14 ms. (8 steps per ms) remains 1057/1057 properties
BEST_FIRST walk for 122 steps (11 resets) in 12 ms. (9 steps per ms) remains 1057/1057 properties
BEST_FIRST walk for 122 steps (11 resets) in 9 ms. (12 steps per ms) remains 1057/1057 properties
BEST_FIRST walk for 122 steps (11 resets) in 13 ms. (8 steps per ms) remains 1057/1057 properties
BEST_FIRST walk for 123 steps (9 resets) in 16 ms. (7 steps per ms) remains 1057/1057 properties
BEST_FIRST walk for 121 steps (11 resets) in 15 ms. (7 steps per ms) remains 1057/1057 properties
BEST_FIRST walk for 124 steps (8 resets) in 13 ms. (8 steps per ms) remains 1057/1057 properties
BEST_FIRST walk for 121 steps (11 resets) in 14 ms. (8 steps per ms) remains 1057/1057 properties
BEST_FIRST walk for 121 steps (11 resets) in 11 ms. (10 steps per ms) remains 1057/1057 properties
BEST_FIRST walk for 121 steps (11 resets) in 14 ms. (8 steps per ms) remains 1057/1057 properties
BEST_FIRST walk for 121 steps (11 resets) in 12 ms. (9 steps per ms) remains 1057/1057 properties
BEST_FIRST walk for 123 steps (9 resets) in 14 ms. (8 steps per ms) remains 1057/1057 properties
BEST_FIRST walk for 121 steps (11 resets) in 10 ms. (11 steps per ms) remains 1057/1057 properties
BEST_FIRST walk for 122 steps (11 resets) in 13 ms. (8 steps per ms) remains 1057/1057 properties
BEST_FIRST walk for 122 steps (10 resets) in 11 ms. (10 steps per ms) remains 1057/1057 properties
BEST_FIRST walk for 123 steps (9 resets) in 14 ms. (8 steps per ms) remains 1057/1057 properties
BEST_FIRST walk for 122 steps (10 resets) in 12 ms. (9 steps per ms) remains 1057/1057 properties
BEST_FIRST walk for 122 steps (10 resets) in 11 ms. (10 steps per ms) remains 1057/1057 properties
BEST_FIRST walk for 122 steps (10 resets) in 10 ms. (11 steps per ms) remains 1057/1057 properties
BEST_FIRST walk for 124 steps (8 resets) in 9 ms. (12 steps per ms) remains 1057/1057 properties
BEST_FIRST walk for 123 steps (9 resets) in 13 ms. (8 steps per ms) remains 1057/1057 properties
BEST_FIRST walk for 122 steps (10 resets) in 15 ms. (7 steps per ms) remains 1057/1057 properties
BEST_FIRST walk for 121 steps (11 resets) in 9 ms. (12 steps per ms) remains 1057/1057 properties
BEST_FIRST walk for 121 steps (11 resets) in 16 ms. (7 steps per ms) remains 1057/1057 properties
BEST_FIRST walk for 124 steps (9 resets) in 14 ms. (8 steps per ms) remains 1057/1057 properties
BEST_FIRST walk for 123 steps (11 resets) in 16 ms. (7 steps per ms) remains 1057/1057 properties
BEST_FIRST walk for 122 steps (11 resets) in 15 ms. (7 steps per ms) remains 1057/1057 properties
BEST_FIRST walk for 123 steps (9 resets) in 15 ms. (7 steps per ms) remains 1057/1057 properties
BEST_FIRST walk for 124 steps (10 resets) in 12 ms. (9 steps per ms) remains 1057/1057 properties
BEST_FIRST walk for 123 steps (9 resets) in 13 ms. (8 steps per ms) remains 1057/1057 properties
BEST_FIRST walk for 124 steps (8 resets) in 12 ms. (9 steps per ms) remains 1057/1057 properties
BEST_FIRST walk for 122 steps (10 resets) in 10 ms. (11 steps per ms) remains 1057/1057 properties
BEST_FIRST walk for 123 steps (9 resets) in 17 ms. (6 steps per ms) remains 1057/1057 properties
BEST_FIRST walk for 121 steps (12 resets) in 11 ms. (10 steps per ms) remains 1057/1057 properties
BEST_FIRST walk for 122 steps (10 resets) in 11 ms. (10 steps per ms) remains 1057/1057 properties
Reachability property qltransition_1835 is true.
Probabilistic random walk after 30000 steps, saw 13951 distinct states, run finished after 1618 ms. (steps per millisecond=18 ) properties seen :327
[2026-05-22 23:22:24] [INFO ] Invariant cache hit.
Reachability property qltransition_15 is true.
Reachability property qltransition_14 is true.
Reachability property qltransition_3 is true.
Reachability property qltransition_2 is true.
Reachability property qltransition_1 is true.
SDD proceeding with computation,1127 properties remain. new max is 2
SDD size :1 after 5
[2026-05-22 23:22:25] [INFO ] State equation strengthened by 1389 read => feed constraints.
Reachability property qltransition_259 is true.
Reachability property qltransition_4 is true.
SDD proceeding with computation,1125 properties remain. new max is 2
SDD size :5 after 24
Reachability property qltransition_1836 is true.
Reachability property qltransition_7 is true.
Reachability property qltransition_5 is true.
SDD proceeding with computation,1122 properties remain. new max is 2
SDD size :24 after 40
SDD proceeding with computation,1122 properties remain. new max is 4
SDD size :40 after 56
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 749/3416 variables, and 0 constraints, problems are : Problem set: 0 solved, 730 unsolved in 5027 ms.
Refiners :[Positive P Invariants (semi-flows): 0/1 constraints, Generalized P Invariants (flows): 0/1 constraints, State Equation: 0/1137 constraints, ReadFeed: 0/1389 constraints, PredecessorRefiner: 730/358 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 730 unsolved
SDD proceeding with computation,1122 properties remain. new max is 8
SDD size :56 after 88
SDD proceeding with computation,1122 properties remain. new max is 16
SDD size :88 after 118
Error getting values : (error "Error writing to Z3 solver: java.io.IOException: Broken pipe")
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 749/3416 variables, and 0 constraints, problems are : Problem set: 0 solved, 730 unsolved in 5027 ms.
Refiners :[Positive P Invariants (semi-flows): 0/1 constraints, Generalized P Invariants (flows): 0/1 constraints, State Equation: 0/1137 constraints, ReadFeed: 0/1389 constraints, PredecessorRefiner: 372/358 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 12083ms problems are : Problem set: 0 solved, 730 unsolved
Skipping Parikh replay, no witness traces provided.
Support contains 749 out of 1137 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 1137/1137 places, 2279/2279 transitions.
Discarding 61 places :
Symmetric choice reduction at 0 with 61 rule applications. Total rules 61 place count 1076 transition count 2080
Iterating global reduction 0 with 61 rules applied. Total rules applied 122 place count 1076 transition count 2080
Ensure Unique test removed 18 transitions
Reduce isomorphic transitions removed 18 transitions.
Iterating post reduction 0 with 18 rules applied. Total rules applied 140 place count 1076 transition count 2062
Discarding 41 places :
Symmetric choice reduction at 1 with 41 rule applications. Total rules 181 place count 1035 transition count 2021
Iterating global reduction 1 with 41 rules applied. Total rules applied 222 place count 1035 transition count 2021
Discarding 27 places :
Symmetric choice reduction at 1 with 27 rule applications. Total rules 249 place count 1008 transition count 1987
Iterating global reduction 1 with 27 rules applied. Total rules applied 276 place count 1008 transition count 1987
Ensure Unique test removed 21 transitions
Reduce isomorphic transitions removed 21 transitions.
Iterating post reduction 1 with 21 rules applied. Total rules applied 297 place count 1008 transition count 1966
Applied a total of 297 rules in 659 ms. Remains 1008 /1137 variables (removed 129) and now considering 1966/2279 (removed 313) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 661 ms. Remains : 1008/1137 places, 1966/2279 transitions.
SDD proceeding with computation,1122 properties remain. new max is 32
SDD size :118 after 152
SDD proceeding with computation,1122 properties remain. new max is 64
SDD size :152 after 182
SDD proceeding with computation,1122 properties remain. new max is 128
SDD size :182 after 222
SDD proceeding with computation,1122 properties remain. new max is 256
SDD size :222 after 246
SDD proceeding with computation,1122 properties remain. new max is 512
SDD size :246 after 318
RANDOM walk for 1391913 steps (319274 resets) in 120004 ms. (11 steps per ms) remains 706/730 properties
BEST_FIRST walk for 4003 steps (169 resets) in 122 ms. (32 steps per ms) remains 706/706 properties
BEST_FIRST walk for 4004 steps (184 resets) in 108 ms. (36 steps per ms) remains 706/706 properties
BEST_FIRST walk for 4002 steps (180 resets) in 107 ms. (37 steps per ms) remains 706/706 properties
BEST_FIRST walk for 4002 steps (167 resets) in 119 ms. (33 steps per ms) remains 706/706 properties
BEST_FIRST walk for 4004 steps (192 resets) in 144 ms. (27 steps per ms) remains 706/706 properties
BEST_FIRST walk for 4004 steps (168 resets) in 141 ms. (28 steps per ms) remains 706/706 properties
BEST_FIRST walk for 4003 steps (180 resets) in 133 ms. (29 steps per ms) remains 706/706 properties
BEST_FIRST walk for 4003 steps (200 resets) in 154 ms. (25 steps per ms) remains 706/706 properties
BEST_FIRST walk for 4002 steps (194 resets) in 144 ms. (27 steps per ms) remains 706/706 properties
BEST_FIRST walk for 4003 steps (191 resets) in 144 ms. (27 steps per ms) remains 706/706 properties
BEST_FIRST walk for 4004 steps (175 resets) in 132 ms. (30 steps per ms) remains 706/706 properties
BEST_FIRST walk for 4001 steps (177 resets) in 111 ms. (35 steps per ms) remains 706/706 properties
BEST_FIRST walk for 4003 steps (177 resets) in 110 ms. (36 steps per ms) remains 706/706 properties
BEST_FIRST walk for 4003 steps (186 resets) in 109 ms. (36 steps per ms) remains 706/706 properties
BEST_FIRST walk for 4003 steps (171 resets) in 147 ms. (27 steps per ms) remains 706/706 properties
BEST_FIRST walk for 4002 steps (164 resets) in 144 ms. (27 steps per ms) remains 706/706 properties
BEST_FIRST walk for 4003 steps (156 resets) in 130 ms. (30 steps per ms) remains 706/706 properties
BEST_FIRST walk for 4002 steps (157 resets) in 148 ms. (26 steps per ms) remains 706/706 properties
BEST_FIRST walk for 4002 steps (197 resets) in 135 ms. (29 steps per ms) remains 706/706 properties
BEST_FIRST walk for 4003 steps (196 resets) in 137 ms. (29 steps per ms) remains 706/706 properties
SDD proceeding with computation,1122 properties remain. new max is 1024
SDD size :318 after 420
BEST_FIRST walk for 4003 steps (166 resets) in 140 ms. (28 steps per ms) remains 706/706 properties
BEST_FIRST walk for 4002 steps (172 resets) in 184 ms. (21 steps per ms) remains 706/706 properties
BEST_FIRST walk for 4002 steps (167 resets) in 179 ms. (22 steps per ms) remains 706/706 properties
BEST_FIRST walk for 4003 steps (207 resets) in 182 ms. (21 steps per ms) remains 706/706 properties
BEST_FIRST walk for 4003 steps (165 resets) in 137 ms. (29 steps per ms) remains 706/706 properties
BEST_FIRST walk for 4003 steps (181 resets) in 178 ms. (22 steps per ms) remains 706/706 properties
BEST_FIRST walk for 4004 steps (158 resets) in 142 ms. (28 steps per ms) remains 706/706 properties
BEST_FIRST walk for 4002 steps (176 resets) in 148 ms. (26 steps per ms) remains 706/706 properties
BEST_FIRST walk for 4003 steps (188 resets) in 146 ms. (27 steps per ms) remains 706/706 properties
BEST_FIRST walk for 4002 steps (160 resets) in 129 ms. (30 steps per ms) remains 706/706 properties
BEST_FIRST walk for 4003 steps (157 resets) in 128 ms. (31 steps per ms) remains 706/706 properties
BEST_FIRST walk for 4002 steps (209 resets) in 153 ms. (25 steps per ms) remains 706/706 properties
BEST_FIRST walk for 4004 steps (192 resets) in 144 ms. (27 steps per ms) remains 706/706 properties
BEST_FIRST walk for 4004 steps (188 resets) in 131 ms. (30 steps per ms) remains 706/706 properties
BEST_FIRST walk for 4003 steps (163 resets) in 118 ms. (33 steps per ms) remains 706/706 properties
BEST_FIRST walk for 4003 steps (193 resets) in 123 ms. (32 steps per ms) remains 706/706 properties
BEST_FIRST walk for 4003 steps (163 resets) in 135 ms. (29 steps per ms) remains 706/706 properties
BEST_FIRST walk for 4002 steps (174 resets) in 161 ms. (24 steps per ms) remains 706/706 properties
BEST_FIRST walk for 4004 steps (190 resets) in 146 ms. (27 steps per ms) remains 706/706 properties
BEST_FIRST walk for 4004 steps (188 resets) in 172 ms. (23 steps per ms) remains 706/706 properties
BEST_FIRST walk for 4004 steps (182 resets) in 169 ms. (23 steps per ms) remains 706/706 properties
BEST_FIRST walk for 4003 steps (181 resets) in 167 ms. (23 steps per ms) remains 706/706 properties
BEST_FIRST walk for 4002 steps (198 resets) in 161 ms. (24 steps per ms) remains 706/706 properties
BEST_FIRST walk for 4004 steps (175 resets) in 172 ms. (23 steps per ms) remains 706/706 properties
BEST_FIRST walk for 4003 steps (172 resets) in 175 ms. (22 steps per ms) remains 706/706 properties
BEST_FIRST walk for 4002 steps (171 resets) in 177 ms. (22 steps per ms) remains 706/706 properties
BEST_FIRST walk for 4002 steps (170 resets) in 168 ms. (23 steps per ms) remains 706/706 properties
BEST_FIRST walk for 4003 steps (183 resets) in 175 ms. (22 steps per ms) remains 706/706 properties
BEST_FIRST walk for 4003 steps (177 resets) in 165 ms. (24 steps per ms) remains 706/706 properties
BEST_FIRST walk for 4003 steps (174 resets) in 151 ms. (26 steps per ms) remains 706/706 properties
SDD proceeding with computation,1122 properties remain. new max is 2048
SDD size :420 after 596
Probabilistic random walk after 1000001 steps, saw 395720 distinct states, run finished after 23878 ms. (steps per millisecond=41 ) properties seen :603
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-13634056212403881381.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-10603154271864951321.kers'
[2026-05-22 23:23:33] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-13634056212403881381.kers, --Pflows, --basisKERS=/tmp/petrispot-output-10603154271864951321.kers]
Culled 0 columns in 1 ms.
// Phase 1: matrix 1966 rows 1008 cols 5478 entries
Finished phase 1 with 1004 SingleSign rule and 2 generalized
[2026-05-22 23:23:33] [INFO ] Computed 2 invariants in 18 ms
Computed 2 P flows in 19 ms.
Exported basis to /tmp/petrispot-output-10603154271864951321.kers
Total runtime 22 ms.
[2026-05-22 23:23:33] [INFO ] State equation strengthened by 1160 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/111 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 103 unsolved
At refinement iteration 1 (OVERLAPS) 335/446 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 103 unsolved
Reachability property qltransition_1066 is true.
At refinement iteration 2 (INCLUDED_ONLY) 0/446 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 103 unsolved
At refinement iteration 3 (OVERLAPS) 242/688 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 103 unsolved
SDD proceeding with computation,1121 properties remain. new max is 2048
SDD size :596 after 1160
At refinement iteration 4 (INCLUDED_ONLY) 0/688 variables, 4/6 constraints. Problems are: Problem set: 0 solved, 103 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/688 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 103 unsolved
At refinement iteration 6 (OVERLAPS) 1070/1758 variables, 688/694 constraints. Problems are: Problem set: 0 solved, 103 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/1758 variables, 264/958 constraints. Problems are: Problem set: 0 solved, 103 unsolved
Reachability property qltransition_2274 is true.
Reachability property qltransition_2269 is true.
Reachability property qltransition_2224 is true.
Reachability property qltransition_2223 is true.
Reachability property qltransition_2222 is true.
Reachability property qltransition_2221 is true.
Reachability property qltransition_2087 is true.
Reachability property qltransition_2086 is true.
Reachability property qltransition_2001 is true.
Reachability property qltransition_2000 is true.
Reachability property qltransition_1999 is true.
Reachability property qltransition_1812 is true.
Reachability property qltransition_1807 is true.
At refinement iteration 8 (INCLUDED_ONLY) 0/1758 variables, 0/958 constraints. Problems are: Problem set: 0 solved, 103 unsolved
Reachability property qltransition_1624 is true.
Reachability property qltransition_1616 is true.
Reachability property qltransition_1065 is true.
Reachability property qltransition_1064 is true.
Reachability property qltransition_747 is true.
Reachability property qltransition_327 is true.
Reachability property qltransition_318 is true.
Reachability property qltransition_309 is true.
Reachability property qltransition_180 is true.
Reachability property qltransition_179 is true.
Reachability property qltransition_178 is true.
At refinement iteration 9 (OVERLAPS) 1166/2924 variables, 295/1253 constraints. Problems are: Problem set: 0 solved, 103 unsolved
SDD proceeding with computation,1097 properties remain. new max is 2048
SDD size :1160 after 9986
At refinement iteration 10 (INCLUDED_ONLY) 0/2924 variables, 871/2124 constraints. Problems are: Problem set: 0 solved, 103 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 2924/2974 variables, and 2124 constraints, problems are : Problem set: 0 solved, 103 unsolved in 45016 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 983/1008 constraints, ReadFeed: 1135/1160 constraints, PredecessorRefiner: 103/55 constraints, Known Traps: 4/4 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 103 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/111 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 103 unsolved
At refinement iteration 1 (OVERLAPS) 335/446 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 103 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/446 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 103 unsolved
At refinement iteration 3 (OVERLAPS) 242/688 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 103 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/688 variables, 4/6 constraints. Problems are: Problem set: 0 solved, 103 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/688 variables, 1/7 constraints. Problems are: Problem set: 0 solved, 103 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/688 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 103 unsolved
At refinement iteration 7 (OVERLAPS) 1070/1758 variables, 688/695 constraints. Problems are: Problem set: 0 solved, 103 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/1758 variables, 264/959 constraints. Problems are: Problem set: 0 solved, 103 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/1758 variables, 11/970 constraints. Problems are: Problem set: 0 solved, 103 unsolved
SDD proceeding with computation,1097 properties remain. new max is 4096
SDD size :9986 after 16394
At refinement iteration 10 (INCLUDED_ONLY) 0/1758 variables, 20/990 constraints. Problems are: Problem set: 0 solved, 103 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/1758 variables, 20/1010 constraints. Problems are: Problem set: 0 solved, 103 unsolved
SMT process timed out in 90447ms, After SMT, problems are : Problem set: 0 solved, 103 unsolved
Fused 103 Parikh solutions to 54 different solutions.
Parikh walk visited 0 properties in 1839 ms.
Support contains 111 out of 1008 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 1008/1008 places, 1966/1966 transitions.
Graph (complete) has 3634 edges and 1008 vertex of which 1007 are kept as prefixes of interest. Removing 1 places using SCC suffix rule.4 ms
Discarding 1 places :
Also discarding 0 output transitions
Drop transitions (Empty/Sink Transition effects.) removed 17 transitions
Reduce isomorphic transitions removed 17 transitions.
Iterating post reduction 0 with 17 rules applied. Total rules applied 18 place count 1007 transition count 1949
Discarding 281 places :
Symmetric choice reduction at 1 with 281 rule applications. Total rules 299 place count 726 transition count 1170
Iterating global reduction 1 with 281 rules applied. Total rules applied 580 place count 726 transition count 1170
Ensure Unique test removed 8 transitions
Reduce isomorphic transitions removed 8 transitions.
Iterating post reduction 1 with 8 rules applied. Total rules applied 588 place count 726 transition count 1162
Discarding 226 places :
Symmetric choice reduction at 2 with 226 rule applications. Total rules 814 place count 500 transition count 936
Iterating global reduction 2 with 226 rules applied. Total rules applied 1040 place count 500 transition count 936
Ensure Unique test removed 12 transitions
Reduce isomorphic transitions removed 12 transitions.
Iterating post reduction 2 with 12 rules applied. Total rules applied 1052 place count 500 transition count 924
Discarding 177 places :
Symmetric choice reduction at 3 with 177 rule applications. Total rules 1229 place count 323 transition count 672
Iterating global reduction 3 with 177 rules applied. Total rules applied 1406 place count 323 transition count 672
Ensure Unique test removed 168 transitions
Reduce isomorphic transitions removed 168 transitions.
Iterating post reduction 3 with 168 rules applied. Total rules applied 1574 place count 323 transition count 504
Discarding 20 places :
Symmetric choice reduction at 4 with 20 rule applications. Total rules 1594 place count 303 transition count 473
Iterating global reduction 4 with 20 rules applied. Total rules applied 1614 place count 303 transition count 473
Ensure Unique test removed 6 transitions
Reduce isomorphic transitions removed 6 transitions.
Iterating post reduction 4 with 6 rules applied. Total rules applied 1620 place count 303 transition count 467
Discarding 12 places :
Symmetric choice reduction at 5 with 12 rule applications. Total rules 1632 place count 291 transition count 455
Iterating global reduction 5 with 12 rules applied. Total rules applied 1644 place count 291 transition count 455
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 5 with 1 rules applied. Total rules applied 1645 place count 291 transition count 454
Discarding 11 places :
Symmetric choice reduction at 6 with 11 rule applications. Total rules 1656 place count 280 transition count 443
Iterating global reduction 6 with 11 rules applied. Total rules applied 1667 place count 280 transition count 443
Ensure Unique test removed 13 transitions
Reduce isomorphic transitions removed 13 transitions.
Iterating post reduction 6 with 13 rules applied. Total rules applied 1680 place count 280 transition count 430
Discarding 4 places :
Symmetric choice reduction at 7 with 4 rule applications. Total rules 1684 place count 276 transition count 404
Iterating global reduction 7 with 4 rules applied. Total rules applied 1688 place count 276 transition count 404
Applied a total of 1688 rules in 249 ms. Remains 276 /1008 variables (removed 732) and now considering 404/1966 (removed 1562) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 249 ms. Remains : 276/1008 places, 404/1966 transitions.
RANDOM walk for 4000000 steps (918377 resets) in 64635 ms. (61 steps per ms) remains 103/103 properties
BEST_FIRST walk for 40003 steps (1758 resets) in 208 ms. (191 steps per ms) remains 103/103 properties
BEST_FIRST walk for 40003 steps (1828 resets) in 266 ms. (149 steps per ms) remains 103/103 properties
BEST_FIRST walk for 40003 steps (1818 resets) in 207 ms. (192 steps per ms) remains 103/103 properties
BEST_FIRST walk for 40003 steps (1765 resets) in 270 ms. (147 steps per ms) remains 103/103 properties
BEST_FIRST walk for 40002 steps (1746 resets) in 247 ms. (161 steps per ms) remains 103/103 properties
BEST_FIRST walk for 40002 steps (1811 resets) in 244 ms. (163 steps per ms) remains 103/103 properties
BEST_FIRST walk for 40004 steps (1824 resets) in 205 ms. (194 steps per ms) remains 103/103 properties
BEST_FIRST walk for 40003 steps (1799 resets) in 242 ms. (164 steps per ms) remains 103/103 properties
BEST_FIRST walk for 40004 steps (1779 resets) in 212 ms. (187 steps per ms) remains 103/103 properties
BEST_FIRST walk for 40003 steps (1786 resets) in 304 ms. (131 steps per ms) remains 103/103 properties
BEST_FIRST walk for 40004 steps (1777 resets) in 221 ms. (180 steps per ms) remains 103/103 properties
BEST_FIRST walk for 40002 steps (1756 resets) in 214 ms. (186 steps per ms) remains 103/103 properties
BEST_FIRST walk for 40001 steps (1766 resets) in 272 ms. (146 steps per ms) remains 103/103 properties
BEST_FIRST walk for 40002 steps (1817 resets) in 220 ms. (181 steps per ms) remains 103/103 properties
BEST_FIRST walk for 40003 steps (1784 resets) in 252 ms. (158 steps per ms) remains 103/103 properties
BEST_FIRST walk for 40003 steps (1822 resets) in 230 ms. (173 steps per ms) remains 103/103 properties
BEST_FIRST walk for 40003 steps (1698 resets) in 202 ms. (197 steps per ms) remains 103/103 properties
BEST_FIRST walk for 40003 steps (1817 resets) in 252 ms. (158 steps per ms) remains 103/103 properties
BEST_FIRST walk for 40002 steps (1821 resets) in 276 ms. (144 steps per ms) remains 103/103 properties
BEST_FIRST walk for 40003 steps (1768 resets) in 212 ms. (187 steps per ms) remains 103/103 properties
BEST_FIRST walk for 40003 steps (1741 resets) in 241 ms. (165 steps per ms) remains 103/103 properties
BEST_FIRST walk for 40003 steps (1814 resets) in 255 ms. (156 steps per ms) remains 103/103 properties
BEST_FIRST walk for 40004 steps (1825 resets) in 198 ms. (201 steps per ms) remains 103/103 properties
BEST_FIRST walk for 40002 steps (1785 resets) in 248 ms. (160 steps per ms) remains 103/103 properties
BEST_FIRST walk for 40003 steps (1869 resets) in 212 ms. (187 steps per ms) remains 103/103 properties
BEST_FIRST walk for 40004 steps (1801 resets) in 280 ms. (142 steps per ms) remains 103/103 properties
BEST_FIRST walk for 40004 steps (1806 resets) in 217 ms. (183 steps per ms) remains 103/103 properties
BEST_FIRST walk for 40004 steps (1726 resets) in 183 ms. (217 steps per ms) remains 103/103 properties
BEST_FIRST walk for 40003 steps (1802 resets) in 226 ms. (176 steps per ms) remains 103/103 properties
BEST_FIRST walk for 40004 steps (1779 resets) in 183 ms. (217 steps per ms) remains 103/103 properties
BEST_FIRST walk for 40004 steps (1800 resets) in 338 ms. (118 steps per ms) remains 103/103 properties
BEST_FIRST walk for 40004 steps (1802 resets) in 268 ms. (148 steps per ms) remains 103/103 properties
BEST_FIRST walk for 40003 steps (1799 resets) in 243 ms. (163 steps per ms) remains 103/103 properties
BEST_FIRST walk for 40003 steps (1797 resets) in 285 ms. (139 steps per ms) remains 103/103 properties
BEST_FIRST walk for 40003 steps (1806 resets) in 357 ms. (111 steps per ms) remains 103/103 properties
BEST_FIRST walk for 40003 steps (1734 resets) in 309 ms. (129 steps per ms) remains 103/103 properties
BEST_FIRST walk for 40003 steps (1758 resets) in 320 ms. (124 steps per ms) remains 103/103 properties
BEST_FIRST walk for 40003 steps (1822 resets) in 237 ms. (168 steps per ms) remains 103/103 properties
BEST_FIRST walk for 40004 steps (1777 resets) in 236 ms. (168 steps per ms) remains 103/103 properties
BEST_FIRST walk for 40003 steps (1704 resets) in 215 ms. (185 steps per ms) remains 103/103 properties
BEST_FIRST walk for 40004 steps (1705 resets) in 197 ms. (202 steps per ms) remains 103/103 properties
BEST_FIRST walk for 40004 steps (1763 resets) in 264 ms. (150 steps per ms) remains 103/103 properties
BEST_FIRST walk for 40004 steps (1814 resets) in 213 ms. (186 steps per ms) remains 103/103 properties
BEST_FIRST walk for 40003 steps (1758 resets) in 269 ms. (148 steps per ms) remains 103/103 properties
BEST_FIRST walk for 40002 steps (1826 resets) in 245 ms. (162 steps per ms) remains 103/103 properties
BEST_FIRST walk for 40002 steps (1829 resets) in 187 ms. (212 steps per ms) remains 103/103 properties
BEST_FIRST walk for 40003 steps (1753 resets) in 228 ms. (174 steps per ms) remains 103/103 properties
BEST_FIRST walk for 40001 steps (1816 resets) in 257 ms. (155 steps per ms) remains 103/103 properties
BEST_FIRST walk for 40003 steps (3768 resets) in 365 ms. (109 steps per ms) remains 103/103 properties
BEST_FIRST walk for 40004 steps (3857 resets) in 275 ms. (144 steps per ms) remains 103/103 properties
Finished probabilistic random walk after 342472 steps, run visited all 103 properties in 3667 ms. (steps per millisecond=93 )
Probabilistic random walk after 342472 steps, saw 138423 distinct states, run finished after 3673 ms. (steps per millisecond=93 ) properties seen :103
ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
Able to resolve query QuasiLiveness after proving 1134 properties.
FORMULA QuasiLiveness TRUE TECHNIQUES RANDOM_WALK PROBABILISTIC_WALK TOPOLOGICAL INITIAL_STATE
Total runtime 295436 ms.

BK_STOP 1779492331559

--------------------
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
++ sed s/.jar//
++ perl -pe 's/.*\.//g'
++ ls /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202604301425.jar
+ VERSION=202604301425
+ echo 'Running Version 202604301425'
+ /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="DBSingleClientW-PT-d2m08"
export BK_EXAMINATION="QuasiLiveness"
export BK_TOOL="itstools"
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 itstools"
echo " Input is DBSingleClientW-PT-d2m08, 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 r088-smll-177946995200142"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/DBSingleClientW-PT-d2m08.tgz
mv DBSingleClientW-PT-d2m08 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 ;