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-177946995200164.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 Dekker-PT-015, examination is Liveness
Time confinement is 1800 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r088-smll-177946995200164
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 620K
-rw-r--r-- 1 mcc users 7.4K Mar 4 18:47 CTLCardinality.txt
-rw-r--r-- 1 mcc users 77K Mar 4 18:47 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.3K Mar 4 18:46 CTLFireability.txt
-rw-r--r-- 1 mcc users 40K Mar 4 18:46 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Mar 3 18:30 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 4.2K Mar 15 08:52 LTLCardinality.txt
-rw-r--r-- 1 mcc users 29K Mar 15 08:52 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.6K Mar 15 08:52 LTLFireability.txt
-rw-r--r-- 1 mcc users 19K Mar 15 08:52 LTLFireability.xml
-rw-r--r-- 1 mcc users 13K Mar 4 18:47 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 130K Mar 4 18:47 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 12K Mar 4 18:47 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 88K Mar 4 18:47 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K Mar 15 08:52 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.6K Mar 15 08:52 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 equiv_col
-rw-r--r-- 1 mcc users 4 Mar 3 18:30 instance
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 iscolored
-rw-r--r-- 1 mcc users 141K 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 Liveness

=== Now, execution of the tool begins

BK_START 1779492626649

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=Liveness
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=1800
BK_INPUT=Dekker-PT-015
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
Liveness PT
Running Version 202604301425
[2026-05-22 23:30:28] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, Liveness, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 1800]
[2026-05-22 23:30:28] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-22 23:30:29] [INFO ] Load time of PNML (sax parser for PT used): 163 ms
[2026-05-22 23:30:29] [INFO ] Transformed 75 places.
[2026-05-22 23:30:29] [INFO ] Transformed 255 transitions.
[2026-05-22 23:30:29] [INFO ] Found NUPN structural information;
[2026-05-22 23:30:29] [INFO ] Parsed PT model containing 75 places and 255 transitions and 1830 arcs in 343 ms.
Built sparse matrix representations for Structural reductions in 12 ms.8778KB memory used
Starting structural reductions in DEADLOCK mode, iteration 0 : 75/75 places, 255/255 transitions.
Computed a total of 0 stabilizing places and 0 stable transitions
Computed a total of 0 stabilizing places and 0 stable transitions
Computed a total of 0 stabilizing places and 0 stable transitions
Applied a total of 0 rules in 59 ms. Remains 75 /75 variables (removed 0) and now considering 255/255 (removed 0) transitions.
Finished structural reductions in DEADLOCK mode , in 1 iterations and 79 ms. Remains : 75/75 places, 255/255 transitions.
Starting structural reductions in DEADLOCK mode, iteration 0 : 75/75 places, 255/255 transitions.
Computed a total of 0 stabilizing places and 0 stable transitions
Computed a total of 0 stabilizing places and 0 stable transitions
Computed a total of 0 stabilizing places and 0 stable transitions
Applied a total of 0 rules in 31 ms. Remains 75 /75 variables (removed 0) and now considering 255/255 (removed 0) transitions.
[2026-05-22 23:30:29] [INFO ] Flow matrix only has 60 transitions (discarded 195 similar events)
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-11074894645588877232.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-15029484851004670532.kers'
[2026-05-22 23:30:29] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-11074894645588877232.kers, --Pflows, --basisKERS=/tmp/petrispot-output-15029484851004670532.kers]
Culling duplicate invariants (modulo rational): removing 30 columns.
Culled 30 columns in 0 ms.
// Phase 1: matrix 60 rows 45 cols 120 entries
Finished phase 1 with 30 SingleSign rule and 0 generalized
[2026-05-22 23:30:29] [INFO ] Computed 45 invariants in 0 ms
Computed 45 P flows in 1 ms.
Exported basis to /tmp/petrispot-output-15029484851004670532.kers
Total runtime 2 ms.
[2026-05-22 23:30:30] [INFO ] Implicit Places using invariants in 420 ms returned []
[2026-05-22 23:30:30] [INFO ] Flow matrix only has 60 transitions (discarded 195 similar events)
[2026-05-22 23:30:30] [INFO ] Invariant cache hit.
[2026-05-22 23:30:30] [INFO ] State equation strengthened by 15 read => feed constraints.
[2026-05-22 23:30:30] [INFO ] Implicit Places using invariants and state equation in 218 ms returned []
Implicit Place search using SMT with State Equation took 697 ms to find 0 implicit places.
[2026-05-22 23:30:30] [INFO ] Redundant transitions in 14 ms returned []
Running 240 sub problems to find dead transitions.
[2026-05-22 23:30:30] [INFO ] Flow matrix only has 60 transitions (discarded 195 similar events)
[2026-05-22 23:30:30] [INFO ] Invariant cache hit.
[2026-05-22 23:30:30] [INFO ] State equation strengthened by 15 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/60 variables, 60/60 constraints. Problems are: Problem set: 0 solved, 240 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/60 variables, 30/90 constraints. Problems are: Problem set: 0 solved, 240 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/60 variables, 20/110 constraints. Problems are: Problem set: 0 solved, 240 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/60 variables, 18/128 constraints. Problems are: Problem set: 0 solved, 240 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/60 variables, 0/128 constraints. Problems are: Problem set: 0 solved, 240 unsolved
At refinement iteration 5 (OVERLAPS) 15/75 variables, 15/143 constraints. Problems are: Problem set: 0 solved, 240 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/75 variables, 15/158 constraints. Problems are: Problem set: 0 solved, 240 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/75 variables, 0/158 constraints. Problems are: Problem set: 0 solved, 240 unsolved
At refinement iteration 8 (OVERLAPS) 60/135 variables, 75/233 constraints. Problems are: Problem set: 0 solved, 240 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/135 variables, 15/248 constraints. Problems are: Problem set: 0 solved, 240 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/135 variables, 0/248 constraints. Problems are: Problem set: 0 solved, 240 unsolved
At refinement iteration 11 (OVERLAPS) 0/135 variables, 0/248 constraints. Problems are: Problem set: 0 solved, 240 unsolved
No progress, stopping.
After SMT solving in domain Real declared 135/135 variables, and 248 constraints, problems are : Problem set: 0 solved, 240 unsolved in 14830 ms.
Refiners :[Domain max(s): 75/75 constraints, Positive P Invariants (semi-flows): 30/30 constraints, Generalized P Invariants (flows): 15/15 constraints, State Equation: 75/75 constraints, ReadFeed: 15/15 constraints, PredecessorRefiner: 240/240 constraints, Known Traps: 38/38 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 240 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/60 variables, 60/60 constraints. Problems are: Problem set: 0 solved, 240 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/60 variables, 30/90 constraints. Problems are: Problem set: 0 solved, 240 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/60 variables, 38/128 constraints. Problems are: Problem set: 0 solved, 240 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/60 variables, 0/128 constraints. Problems are: Problem set: 0 solved, 240 unsolved
At refinement iteration 4 (OVERLAPS) 15/75 variables, 15/143 constraints. Problems are: Problem set: 0 solved, 240 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/75 variables, 15/158 constraints. Problems are: Problem set: 0 solved, 240 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/75 variables, 0/158 constraints. Problems are: Problem set: 0 solved, 240 unsolved
At refinement iteration 7 (OVERLAPS) 60/135 variables, 75/233 constraints. Problems are: Problem set: 0 solved, 240 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/135 variables, 15/248 constraints. Problems are: Problem set: 0 solved, 240 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/135 variables, 240/488 constraints. Problems are: Problem set: 0 solved, 240 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/135 variables, 20/508 constraints. Problems are: Problem set: 0 solved, 240 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/135 variables, 20/528 constraints. Problems are: Problem set: 0 solved, 240 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/135 variables, 12/540 constraints. Problems are: Problem set: 0 solved, 240 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/135 variables, 4/544 constraints. Problems are: Problem set: 0 solved, 240 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/135 variables, 7/551 constraints. Problems are: Problem set: 0 solved, 240 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/135 variables, 1/552 constraints. Problems are: Problem set: 0 solved, 240 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/135 variables, 0/552 constraints. Problems are: Problem set: 0 solved, 240 unsolved
At refinement iteration 17 (OVERLAPS) 0/135 variables, 2/554 constraints. Problems are: Problem set: 0 solved, 240 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/135 variables, 1/555 constraints. Problems are: Problem set: 0 solved, 240 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/135 variables, 0/555 constraints. Problems are: Problem set: 0 solved, 240 unsolved
At refinement iteration 20 (OVERLAPS) 0/135 variables, 0/555 constraints. Problems are: Problem set: 0 solved, 240 unsolved
No progress, stopping.
After SMT solving in domain Int declared 135/135 variables, and 555 constraints, problems are : Problem set: 0 solved, 240 unsolved in 30032 ms.
Refiners :[Domain max(s): 75/75 constraints, Positive P Invariants (semi-flows): 30/30 constraints, Generalized P Invariants (flows): 15/15 constraints, State Equation: 75/75 constraints, ReadFeed: 15/15 constraints, PredecessorRefiner: 240/240 constraints, Known Traps: 105/105 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 45170ms problems are : Problem set: 0 solved, 240 unsolved
Search for dead transitions found 0 dead transitions in 45197ms
Finished structural reductions in DEADLOCK mode , in 1 iterations and 46008 ms. Remains : 75/75 places, 255/255 transitions.
Random walk for 1250000 steps, including 0 resets, run took 6228 ms (no deadlock found). (steps per millisecond=200 )
Random directed walk for 1250010 steps, including 0 resets, run took 5224 ms (no deadlock found). (steps per millisecond=239 )
[2026-05-22 23:31:27] [INFO ] Flow matrix only has 60 transitions (discarded 195 similar events)
[2026-05-22 23:31:27] [INFO ] Invariant cache hit.
[2026-05-22 23:31:27] [INFO ] [Real]Absence check using 30 positive place invariants in 16 ms returned sat
[2026-05-22 23:31:27] [INFO ] [Real]Absence check using 30 positive and 15 generalized place invariants in 2 ms returned unsat
Starting structural reductions in LIVENESS mode, iteration 0 : 75/75 places, 255/255 transitions.
Applied a total of 0 rules in 3 ms. Remains 75 /75 variables (removed 0) and now considering 255/255 (removed 0) transitions.
[2026-05-22 23:31:27] [INFO ] Flow matrix only has 60 transitions (discarded 195 similar events)
[2026-05-22 23:31:27] [INFO ] Invariant cache hit.
[2026-05-22 23:31:27] [INFO ] Implicit Places using invariants in 311 ms returned [30, 33, 36, 39, 42, 45, 48, 51, 54, 57, 60, 63, 66, 69, 72]
Discarding 15 places :
Implicit Place search using SMT only with invariants took 318 ms to find 15 implicit places.
Starting structural reductions in LIVENESS mode, iteration 1 : 60/75 places, 255/255 transitions.
Applied a total of 0 rules in 4 ms. Remains 60 /60 variables (removed 0) and now considering 255/255 (removed 0) transitions.
Finished structural reductions in LIVENESS mode , in 2 iterations and 325 ms. Remains : 60/75 places, 255/255 transitions.
Discarding 15 transitions out of 255. Remains 240
[2026-05-22 23:31:28] [INFO ] Flatten gal took : 165 ms
RANDOM walk for 40000 steps (8 resets) in 3001 ms. (13 steps per ms) remains 12/240 properties
[2026-05-22 23:31:28] [INFO ] Flatten gal took : 40 ms
[2026-05-22 23:31:28] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality7143830220243121495.gal : 36 ms
[2026-05-22 23:31:28] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality14055025094406772942.prop : 1 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/ReachabilityCardinality7143830220243121495.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality14055025094406772942.prop' '--nowitness' '--gen-order' 'FOLLOW'

BEST_FIRST walk for 40004 steps (8 resets) in 304 ms. (131 steps per ms) remains 11/12 properties
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/ReachabilityCardinality14055025094406772942.prop.
SDD proceeding with computation,12 properties remain. new max is 4
SDD size :1 after 4
SDD proceeding with computation,12 properties remain. new max is 8
SDD size :4 after 16
BEST_FIRST walk for 40004 steps (8 resets) in 186 ms. (213 steps per ms) remains 10/11 properties
Reachability property qltransition_83 is true.
SDD proceeding with computation,11 properties remain. new max is 8
SDD size :16 after 128
SDD proceeding with computation,11 properties remain. new max is 16
SDD size :128 after 1024
Reachability property qltransition_237 is true.
Reachability property qltransition_220 is true.
Reachability property qltransition_186 is true.
Reachability property qltransition_135 is true.
Reachability property qltransition_118 is true.
Reachability property qltransition_101 is true.
Reachability property qltransition_84 is true.
Reachability property qltransition_50 is true.
Reachability property qltransition_33 is true.
Reachability property qltransition_16 is true.
SDD proceeding with computation,1 properties remain. new max is 16
SDD size :1024 after 16412
SDD proceeding with computation,1 properties remain. new max is 32
SDD size :16412 after 16528
SDD proceeding with computation,1 properties remain. new max is 64
SDD size :16528 after 19328
Reachability property qltransition_254 is true.
Found states matching all0 target predicate
Will report total states built up to this point. Computation was interrupted after 65 fixpoint passes
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
petri\_inst\_inst,264192,0.101481,7148,2,193,25,5040,6,0,499,2018,0
Total reachable state count : 264192

Verifying 12 reachability properties.
Reachability property qltransition_16 is true.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
qltransition\_16,1,0.102261,7148,2,61,25,5040,7,0,505,2018,0
Reachability property qltransition_33 is true.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
qltransition\_33,2,0.102574,7148,2,63,25,5040,8,0,510,2018,0
Reachability property qltransition_50 is true.

BEST_FIRST walk for 40004 steps (8 resets) in 176 ms. (226 steps per ms) remains 9/10 properties
BEST_FIRST walk for 40004 steps (8 resets) in 229 ms. (173 steps per ms) remains 7/9 properties
BEST_FIRST walk for 40004 steps (8 resets) in 172 ms. (231 steps per ms) remains 6/7 properties
BEST_FIRST walk for 40004 steps (8 resets) in 147 ms. (270 steps per ms) remains 5/6 properties
BEST_FIRST walk for 40004 steps (8 resets) in 161 ms. (246 steps per ms) remains 4/5 properties
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
qltransition\_50,4,0.102904,7148,2,65,25,5040,9,0,515,2018,0
Reachability property qltransition_83 is true.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
qltransition\_83,1,0.342925,7148,2,61,25,5040,10,0,559,2018,0
Reachability property qltransition_84 is true.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
qltransition\_84,16,0.344338,7148,2,69,25,5040,11,0,564,2018,0
Reachability property qltransition_101 is true.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
qltransition\_101,32,0.345011,7148,2,71,25,5040,12,0,569,2018,0
Reachability property qltransition_118 is true.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
qltransition\_118,64,0.345696,7148,2,73,25,5040,13,0,574,2018,0
Reachability property qltransition_135 is true.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
qltransition\_135,128,0.347052,7148,2,75,25,5040,14,0,579,2018,0
Reachability property qltransition_186 is true.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
qltransition\_186,1024,0.347732,7148,2,81,25,5040,15,0,584,2018,0
Reachability property qltransition_220 is true.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
qltransition\_220,4096,0.348185,7148,2,85,25,5040,16,0,589,2018,0
Reachability property qltransition_237 is true.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
qltransition\_237,8192,0.348743,7148,2,87,25,5040,17,0,594,2018,0
Reachability property qltransition_254 is true.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
qltransition\_254,2048,0.349174,7148,2,83,25,5040,18,0,599,2018,0
BEST_FIRST walk for 40004 steps (8 resets) in 164 ms. (242 steps per ms) remains 3/4 properties
ITS tools runner thread asked to quit. Dying gracefully.
BEST_FIRST walk for 40004 steps (8 resets) in 139 ms. (285 steps per ms) remains 2/3 properties
BEST_FIRST walk for 40004 steps (8 resets) in 148 ms. (268 steps per ms) remains 1/2 properties
BEST_FIRST walk for 128 steps (0 resets) in 4 ms. (25 steps per ms) remains 0/1 properties
Able to resolve query QuasiLiveness after proving 240 properties.
Starting structural reductions in LIVENESS mode, iteration 0 : 75/75 places, 255/255 transitions.
Applied a total of 0 rules in 4 ms. Remains 75 /75 variables (removed 0) and now considering 255/255 (removed 0) transitions.
[2026-05-22 23:31:29] [INFO ] Flow matrix only has 60 transitions (discarded 195 similar events)
[2026-05-22 23:31:29] [INFO ] Invariant cache hit.
[2026-05-22 23:31:29] [INFO ] Implicit Places using invariants in 267 ms returned [30, 33, 36, 39, 42, 45, 48, 51, 54, 57, 60, 63, 66, 69, 72]
Discarding 15 places :
Implicit Place search using SMT only with invariants took 269 ms to find 15 implicit places.
Starting structural reductions in LIVENESS mode, iteration 1 : 60/75 places, 255/255 transitions.
Applied a total of 0 rules in 4 ms. Remains 60 /60 variables (removed 0) and now considering 255/255 (removed 0) transitions.
Finished structural reductions in LIVENESS mode , in 2 iterations and 277 ms. Remains : 60/75 places, 255/255 transitions.
Discarding 15 transitions out of 255. Remains 240
Net is quasi-live, checking if it is reversible to establish liveness.
[2026-05-22 23:31:29] [INFO ] Flatten gal took : 39 ms
[2026-05-22 23:31:29] [INFO ] Flatten gal took : 39 ms
[2026-05-22 23:31:29] [INFO ] Time to serialize gal into /tmp/CTLFireability5869549705158297419.gal : 11 ms
[2026-05-22 23:31:29] [INFO ] Time to serialize properties into /tmp/CTLFireability3310065115662370099.ctl : 3 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-ctl-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/CTLFireability5869549705158297419.gal' '-t' 'CGAL' '-ctl' '/tmp/CTLFireability3310065115662370099.ctl' '--gen-order' 'FOLLOW'

its-ctl command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202604301425/bin/its-ctl-linux64 --gc-threshold 2000000 --quiet -...283
No direction supplied, using forward translation only.
Parsed 1 CTL formulae.
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
reachable,278528,0.12256,6712,2,187,5,4281,6,0,498,2016,0


Converting to forward existential form...Done !
original formula: AG(EF((((((((flag_0_0==1)&&(flag_1_0==0))&&((flag_0_1==1)&&(flag_1_1==0)))&&(((flag_0_2==1)&&(flag_1_2==0))&&((flag_0_3==1)&&(flag_1_3==0...942
=> equivalent forward existential formula: [(FwdU(Init,TRUE) * !(E(TRUE U (((((((flag_0_0==1)&&(flag_1_0==0))&&((flag_0_1==1)&&(flag_1_1==0)))&&(((flag_0_2...1002
Reverse transition relation is NOT exact ! Due to transitions exit_0, exit_1, exit_2, exit_3, exit_4, exit_5, exit_6, exit_7, exit_8, exit_9, exit_10, exit...287
(forward)formula 0,1,0.357882,9324,1,0,535,32250,531,259,4398,20925,524
Formula is TRUE !

***************************************

Able to resolve query Liveness after proving 1 properties.
FORMULA Liveness TRUE TECHNIQUES RANDOM_WALK DECISION_DIAGRAMS COLLATERAL_PROCESSING BESTFIRST_WALK TOPOLOGICAL QUASI_LIVE_REVERSIBLE
Total runtime 60929 ms.

BK_STOP 1779492689931

--------------------
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
+ [[ Liveness = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution Liveness -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 Liveness -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="Dekker-PT-015"
export BK_EXAMINATION="Liveness"
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 Dekker-PT-015, examination is Liveness"
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-177946995200164"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/Dekker-PT-015.tgz
mv Dekker-PT-015 execution
cd execution
if [ "Liveness" = "ReachabilityDeadlock" ] || [ "Liveness" = "UpperBounds" ] || [ "Liveness" = "QuasiLiveness" ] || [ "Liveness" = "StableMarking" ] || [ "Liveness" = "Liveness" ] || [ "Liveness" = "OneSafe" ] || [ "Liveness" = "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 [ "Liveness" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "Liveness" != "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 "Liveness.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 '' Liveness.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "Liveness" = "ReachabilityDeadlock" ] || [ "Liveness" = "QuasiLiveness" ] || [ "Liveness" = "StableMarking" ] || [ "Liveness" = "Liveness" ] || [ "Liveness" = "OneSafe" ] ; then
echo "FORMULA_NAME Liveness"
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 ;