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.r050-smll-177946901100217.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)
.........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
=====================================================================
Generated by BenchKit 2-5973
Executing tool itstools
Input is CircularTrains-PT-012, examination is CTLCardinality
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r050-smll-177946901100217
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 516K
-rw-r--r-- 1 mcc users 7.6K Mar 5 14:29 CTLCardinality.txt
-rw-r--r-- 1 mcc users 80K Mar 5 14:29 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.7K Mar 5 14:29 CTLFireability.txt
-rw-r--r-- 1 mcc users 45K Mar 5 14:29 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Mar 3 18:30 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.4K Mar 3 18:30 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 4.0K Mar 15 08:05 LTLCardinality.txt
-rw-r--r-- 1 mcc users 29K Mar 15 08:05 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.4K Mar 15 08:05 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K Mar 15 08:05 LTLFireability.xml
-rw-r--r-- 1 mcc users 12K Mar 5 14:29 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 118K Mar 5 14:29 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 14K Mar 5 14:29 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 115K Mar 5 14:29 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K Mar 15 08:05 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.8K Mar 15 08:05 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 9.2K 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

echo here is the order used to build the result vector(from xml file)
FORMULA_NAME CircularTrains-PT-012-CTLCardinality-2024-00
FORMULA_NAME CircularTrains-PT-012-CTLCardinality-2024-01
FORMULA_NAME CircularTrains-PT-012-CTLCardinality-2024-02
FORMULA_NAME CircularTrains-PT-012-CTLCardinality-2024-03
FORMULA_NAME CircularTrains-PT-012-CTLCardinality-2024-04
FORMULA_NAME CircularTrains-PT-012-CTLCardinality-2024-05
FORMULA_NAME CircularTrains-PT-012-CTLCardinality-2024-06
FORMULA_NAME CircularTrains-PT-012-CTLCardinality-2024-07
FORMULA_NAME CircularTrains-PT-012-CTLCardinality-2024-08
FORMULA_NAME CircularTrains-PT-012-CTLCardinality-2024-09
FORMULA_NAME CircularTrains-PT-012-CTLCardinality-2024-10
FORMULA_NAME CircularTrains-PT-012-CTLCardinality-2024-11
FORMULA_NAME CircularTrains-PT-012-CTLCardinality-2024-12
FORMULA_NAME CircularTrains-PT-012-CTLCardinality-2024-13
FORMULA_NAME CircularTrains-PT-012-CTLCardinality-2024-14
FORMULA_NAME CircularTrains-PT-012-CTLCardinality-2024-15

=== Now, execution of the tool begins

BK_START 1779568521178

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=CTLCardinality
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=CircularTrains-PT-012
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
CTLCardinality PT
Running Version 202604301425
[2026-05-23 20:35:23] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, CTLCardinality, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2026-05-23 20:35:23] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-23 20:35:23] [INFO ] Load time of PNML (sax parser for PT used): 70 ms
[2026-05-23 20:35:23] [INFO ] Transformed 24 places.
[2026-05-23 20:35:23] [INFO ] Transformed 12 transitions.
[2026-05-23 20:35:23] [INFO ] Parsed PT model containing 24 places and 12 transitions and 48 arcs in 287 ms.
Parsed 16 properties from file /home/mcc/execution/CTLCardinality.xml in 39 ms.
Initial state reduction rules removed 2 formulas.
FORMULA CircularTrains-PT-012-CTLCardinality-2024-09 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA CircularTrains-PT-012-CTLCardinality-2024-13 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Support contains 24 out of 24 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 24/24 places, 12/12 transitions.
Applied a total of 0 rules in 16 ms. Remains 24 /24 variables (removed 0) and now considering 12/12 (removed 0) transitions.
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-3255413591820345595.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-7079245811698806386.kers'
[2026-05-23 20:35:23] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-3255413591820345595.kers, --Pflows, --basisKERS=/tmp/petrispot-output-7079245811698806386.kers]
Culled 0 columns in 0 ms.
// Phase 1: matrix 12 rows 24 cols 48 entries
Finished phase 1 with 0 SingleSign rule and 11 generalized
[2026-05-23 20:35:23] [INFO ] Computed 13 invariants in 0 ms
Computed 13 P flows in 1 ms.
Exported basis to /tmp/petrispot-output-7079245811698806386.kers
Total runtime 1 ms.
[2026-05-23 20:35:24] [INFO ] Implicit Places using invariants in 365 ms returned []
[2026-05-23 20:35:24] [INFO ] Invariant cache hit.
[2026-05-23 20:35:24] [INFO ] Implicit Places using invariants and state equation in 78 ms returned []
Implicit Place search using SMT with State Equation took 517 ms to find 0 implicit places.
Running 8 sub problems to find dead transitions.
[2026-05-23 20:35:24] [INFO ] Invariant cache hit.
At refinement iteration 0 (INCLUDED_ONLY) 0/16 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 8 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/16 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 8 unsolved
At refinement iteration 2 (OVERLAPS) 4/20 variables, 5/6 constraints. Problems are: Problem set: 0 solved, 8 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/20 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 8 unsolved
At refinement iteration 4 (OVERLAPS) 4/24 variables, 7/13 constraints. Problems are: Problem set: 0 solved, 8 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/24 variables, 0/13 constraints. Problems are: Problem set: 0 solved, 8 unsolved
At refinement iteration 6 (OVERLAPS) 12/36 variables, 24/37 constraints. Problems are: Problem set: 0 solved, 8 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/36 variables, 0/37 constraints. Problems are: Problem set: 0 solved, 8 unsolved
At refinement iteration 8 (OVERLAPS) 0/36 variables, 0/37 constraints. Problems are: Problem set: 0 solved, 8 unsolved
No progress, stopping.
After SMT solving in domain Real declared 36/36 variables, and 37 constraints, problems are : Problem set: 0 solved, 8 unsolved in 514 ms.
Refiners :[Positive P Invariants (semi-flows): 5/5 constraints, Generalized P Invariants (flows): 8/8 constraints, State Equation: 24/24 constraints, PredecessorRefiner: 8/8 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 8 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/16 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 8 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/16 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 8 unsolved
At refinement iteration 2 (OVERLAPS) 4/20 variables, 5/6 constraints. Problems are: Problem set: 0 solved, 8 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/20 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 8 unsolved
At refinement iteration 4 (OVERLAPS) 4/24 variables, 7/13 constraints. Problems are: Problem set: 0 solved, 8 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/24 variables, 0/13 constraints. Problems are: Problem set: 0 solved, 8 unsolved
At refinement iteration 6 (OVERLAPS) 12/36 variables, 24/37 constraints. Problems are: Problem set: 0 solved, 8 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/36 variables, 8/45 constraints. Problems are: Problem set: 0 solved, 8 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/36 variables, 0/45 constraints. Problems are: Problem set: 0 solved, 8 unsolved
At refinement iteration 9 (OVERLAPS) 0/36 variables, 0/45 constraints. Problems are: Problem set: 0 solved, 8 unsolved
No progress, stopping.
After SMT solving in domain Int declared 36/36 variables, and 45 constraints, problems are : Problem set: 0 solved, 8 unsolved in 377 ms.
Refiners :[Positive P Invariants (semi-flows): 5/5 constraints, Generalized P Invariants (flows): 8/8 constraints, State Equation: 24/24 constraints, PredecessorRefiner: 8/8 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 930ms problems are : Problem set: 0 solved, 8 unsolved
Search for dead transitions found 0 dead transitions in 952ms
Finished structural reductions in LTL mode , in 1 iterations and 1560 ms. Remains : 24/24 places, 12/12 transitions.
Starting structural reductions in LTL mode, iteration 0 : 24/24 places, 12/12 transitions.
Applied a total of 0 rules in 1 ms. Remains 24 /24 variables (removed 0) and now considering 12/12 (removed 0) transitions.
[2026-05-23 20:35:25] [INFO ] Invariant cache hit.
[2026-05-23 20:35:25] [INFO ] Implicit Places using invariants in 54 ms returned []
[2026-05-23 20:35:25] [INFO ] Invariant cache hit.
[2026-05-23 20:35:25] [INFO ] Implicit Places using invariants and state equation in 46 ms returned []
Implicit Place search using SMT with State Equation took 104 ms to find 0 implicit places.
Skipped dead transition search.
Finished structural reductions in LTL mode , in 1 iterations and 106 ms. Remains : 24/24 places, 12/12 transitions.
Support contains 24 out of 24 places after structural reductions.
[2026-05-23 20:35:25] [INFO ] Flatten gal took : 31 ms
[2026-05-23 20:35:25] [INFO ] Flatten gal took : 9 ms
[2026-05-23 20:35:25] [INFO ] Input system was already deterministic with 12 transitions.
RANDOM walk for 40000 steps (8 resets) in 2466 ms. (16 steps per ms) remains 12/59 properties
BEST_FIRST walk for 40002 steps (8 resets) in 313 ms. (127 steps per ms) remains 12/12 properties
BEST_FIRST walk for 40002 steps (8 resets) in 328 ms. (121 steps per ms) remains 12/12 properties
BEST_FIRST walk for 40002 steps (8 resets) in 187 ms. (212 steps per ms) remains 12/12 properties
BEST_FIRST walk for 40002 steps (8 resets) in 168 ms. (236 steps per ms) remains 12/12 properties
BEST_FIRST walk for 40003 steps (8 resets) in 116 ms. (341 steps per ms) remains 12/12 properties
BEST_FIRST walk for 40003 steps (8 resets) in 137 ms. (289 steps per ms) remains 12/12 properties
BEST_FIRST walk for 40002 steps (8 resets) in 127 ms. (312 steps per ms) remains 12/12 properties
BEST_FIRST walk for 40002 steps (8 resets) in 115 ms. (344 steps per ms) remains 12/12 properties
BEST_FIRST walk for 40003 steps (8 resets) in 210 ms. (189 steps per ms) remains 12/12 properties
BEST_FIRST walk for 40001 steps (8 resets) in 155 ms. (256 steps per ms) remains 12/12 properties
BEST_FIRST walk for 40002 steps (8 resets) in 148 ms. (268 steps per ms) remains 12/12 properties
BEST_FIRST walk for 40002 steps (8 resets) in 177 ms. (224 steps per ms) remains 12/12 properties
[2026-05-23 20:35:27] [INFO ] Invariant cache hit.
At refinement iteration 0 (INCLUDED_ONLY) 0/13 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 12 unsolved
Problem AtomicPropp5 is UNSAT
Problem AtomicPropp44 is UNSAT
Problem AtomicPropp48 is UNSAT
Problem AtomicPropp54 is UNSAT
At refinement iteration 1 (OVERLAPS) 4/17 variables, 4/4 constraints. Problems are: Problem set: 4 solved, 8 unsolved
Problem AtomicPropp1 is UNSAT
Problem AtomicPropp6 is UNSAT
Problem AtomicPropp12 is UNSAT
Problem AtomicPropp17 is UNSAT
At refinement iteration 2 (INCLUDED_ONLY) 0/17 variables, 3/7 constraints. Problems are: Problem set: 8 solved, 4 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/17 variables, 0/7 constraints. Problems are: Problem set: 8 solved, 4 unsolved
Problem AtomicPropp22 is UNSAT
At refinement iteration 4 (OVERLAPS) 6/23 variables, 5/12 constraints. Problems are: Problem set: 9 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/23 variables, 0/12 constraints. Problems are: Problem set: 9 solved, 3 unsolved
Problem AtomicPropp41 is UNSAT
Problem AtomicPropp51 is UNSAT
At refinement iteration 6 (OVERLAPS) 1/24 variables, 1/13 constraints. Problems are: Problem set: 11 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/24 variables, 0/13 constraints. Problems are: Problem set: 11 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 12/36 variables, 24/37 constraints. Problems are: Problem set: 11 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/36 variables, 0/37 constraints. Problems are: Problem set: 11 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 0/36 variables, 0/37 constraints. Problems are: Problem set: 11 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 36/36 variables, and 37 constraints, problems are : Problem set: 11 solved, 1 unsolved in 206 ms.
Refiners :[Positive P Invariants (semi-flows): 5/5 constraints, Generalized P Invariants (flows): 8/8 constraints, State Equation: 24/24 constraints, PredecessorRefiner: 12/12 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 11 solved, 1 unsolved
Problem AtomicPropp57 is UNSAT
After SMT solving in domain Int declared 5/36 variables, and 0 constraints, problems are : Problem set: 12 solved, 0 unsolved in 29 ms.
Refiners :[Positive P Invariants (semi-flows): 0/5 constraints, Generalized P Invariants (flows): 0/8 constraints, State Equation: 0/24 constraints, PredecessorRefiner: 0/12 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 250ms problems are : Problem set: 12 solved, 0 unsolved
Skipping Parikh replay, no witness traces provided.
Successfully simplified 12 atomic propositions for a total of 13 simplifications.
[2026-05-23 20:35:27] [INFO ] Initial state reduction rules for CTL removed 2 formulas.
[2026-05-23 20:35:27] [INFO ] Flatten gal took : 9 ms
FORMULA CircularTrains-PT-012-CTLCardinality-2024-15 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA CircularTrains-PT-012-CTLCardinality-2024-07 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
[2026-05-23 20:35:27] [INFO ] Flatten gal took : 7 ms
[2026-05-23 20:35:27] [INFO ] Input system was already deterministic with 12 transitions.
Support contains 22 out of 24 places (down from 23) after GAL structural reductions.
Computed a total of 0 stabilizing places and 0 stable transitions
Starting structural reductions in SI_CTL mode, iteration 0 : 24/24 places, 12/12 transitions.
Applied a total of 0 rules in 6 ms. Remains 24 /24 variables (removed 0) and now considering 12/12 (removed 0) transitions.
[2026-05-23 20:35:27] [INFO ] Invariant cache hit.
[2026-05-23 20:35:27] [INFO ] Implicit Places using invariants in 70 ms returned [5]
Discarding 1 places :
Implicit Place search using SMT only with invariants took 77 ms to find 1 implicit places.
Starting structural reductions in SI_CTL mode, iteration 1 : 23/24 places, 12/12 transitions.
Applied a total of 0 rules in 4 ms. Remains 23 /23 variables (removed 0) and now considering 12/12 (removed 0) transitions.
Finished structural reductions in SI_CTL mode , in 2 iterations and 87 ms. Remains : 23/24 places, 12/12 transitions.
[2026-05-23 20:35:27] [INFO ] Flatten gal took : 4 ms
[2026-05-23 20:35:27] [INFO ] Flatten gal took : 4 ms
[2026-05-23 20:35:27] [INFO ] Input system was already deterministic with 12 transitions.
[2026-05-23 20:35:27] [INFO ] Flatten gal took : 4 ms
[2026-05-23 20:35:27] [INFO ] Flatten gal took : 3 ms
[2026-05-23 20:35:27] [INFO ] Time to serialize gal into /tmp/CTLCardinality3587237624881151669.gal : 3 ms
[2026-05-23 20:35:27] [INFO ] Time to serialize properties into /tmp/CTLCardinality15100883268824475814.ctl : 2 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/CTLCardinality3587237624881151669.gal' '-t' 'CGAL' '-ctl' '/tmp/CTLCardinality15100883268824475814.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 -...284
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,195,0.025141,3912,2,186,5,749,6,0,107,597,0


Converting to forward existential form...Done !
original formula: E(!(EF((F9>=1))) U (AF(((((((F12<=F3)&&(Section_12>=1)) + E((F5<=1) U (F8>=1))) + EF((Section_3<=F11))) * E((Section_5<=0) U (F7>=1))) * ...206
=> equivalent forward existential formula: [FwdG((FwdU(Init,!(E(TRUE U (F9>=1)))) * !(EG(!(((((((F12<=F3)&&(Section_12>=1)) + E((F5<=1) U (F8>=1))) + E(TRU...274
Reverse transition relation is exact ! Faster fixpoint algorithm enabled.
Hit Full ! (commute/partial/dont) 10/0/2
Hit Full ! (commute/partial/dont) 10/0/2
Using saturation style SCC detection
(forward)formula 0,0,0.082737,5324,1,0,21,7773,56,7,613,5693,25
FORMULA CircularTrains-PT-012-CTLCardinality-2024-00 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL
Formula is FALSE !

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

Starting structural reductions in SI_CTL mode, iteration 0 : 24/24 places, 12/12 transitions.
Applied a total of 0 rules in 3 ms. Remains 24 /24 variables (removed 0) and now considering 12/12 (removed 0) transitions.
[2026-05-23 20:35:27] [INFO ] Invariant cache hit.
[2026-05-23 20:35:27] [INFO ] Implicit Places using invariants in 56 ms returned [15, 20, 21]
Discarding 3 places :
Implicit Place search using SMT only with invariants took 59 ms to find 3 implicit places.
Starting structural reductions in SI_CTL mode, iteration 1 : 21/24 places, 12/12 transitions.
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 0 with 1 Pre rules applied. Total rules applied 0 place count 21 transition count 11
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 0 with 2 rules applied. Total rules applied 2 place count 20 transition count 11
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 0 with 2 rules applied. Total rules applied 4 place count 19 transition count 10
Applied a total of 4 rules in 23 ms. Remains 19 /21 variables (removed 2) and now considering 10/12 (removed 2) transitions.
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-1014644986359457529.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-4124517054708177625.kers'
[2026-05-23 20:35:28] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-1014644986359457529.kers, --Pflows, --basisKERS=/tmp/petrispot-output-4124517054708177625.kers]
Culling duplicate invariants (modulo rational): removing 4 columns.
Culled 4 columns in 0 ms.
// Phase 1: matrix 10 rows 15 cols 30 entries
Finished phase 1 with 8 SingleSign rule and 1 generalized
[2026-05-23 20:35:28] [INFO ] Computed 10 invariants in 0 ms
Computed 10 P flows in 0 ms.
Exported basis to /tmp/petrispot-output-4124517054708177625.kers
Total runtime 0 ms.
[2026-05-23 20:35:28] [INFO ] Implicit Places using invariants in 56 ms returned []
[2026-05-23 20:35:28] [INFO ] Invariant cache hit.
[2026-05-23 20:35:28] [INFO ] Implicit Places using invariants and state equation in 64 ms returned []
Implicit Place search using SMT with State Equation took 124 ms to find 0 implicit places.
Starting structural reductions in SI_CTL mode, iteration 2 : 19/24 places, 10/12 transitions.
Finished structural reductions in SI_CTL mode , in 2 iterations and 211 ms. Remains : 19/24 places, 10/12 transitions.
[2026-05-23 20:35:28] [INFO ] Flatten gal took : 3 ms
[2026-05-23 20:35:28] [INFO ] Flatten gal took : 3 ms
[2026-05-23 20:35:28] [INFO ] Input system was already deterministic with 10 transitions.
[2026-05-23 20:35:28] [INFO ] Flatten gal took : 3 ms
[2026-05-23 20:35:28] [INFO ] Flatten gal took : 2 ms
[2026-05-23 20:35:28] [INFO ] Time to serialize gal into /tmp/CTLCardinality15560663627026410083.gal : 1 ms
[2026-05-23 20:35:28] [INFO ] Time to serialize properties into /tmp/CTLCardinality3756828261236019046.ctl : 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-ctl-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/CTLCardinality15560663627026410083.gal' '-t' 'CGAL' '-ctl' '/tmp/CTLCardinality3756828261236019046.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 -...284
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,116,0.008329,3908,2,107,5,453,6,0,89,367,0


Converting to forward existential form...Done !
original formula: (AG((F1>Section_8)) + EF(((EF((F2<=1)) * (F6>=1)) * (Section_10<=1))))
=> equivalent forward existential formula: [(FwdU((Init * !(E(TRUE U ((E(TRUE U (F2<=1)) * (F6>=1)) * (Section_10<=1))))),TRUE) * !((F1>Section_8)))] = FAL...157
Reverse transition relation is exact ! Faster fixpoint algorithm enabled.
(forward)formula 0,1,0.018592,4180,1,0,10,1253,18,2,405,802,10
FORMULA CircularTrains-PT-012-CTLCardinality-2024-01 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL
Formula is TRUE !

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

Starting structural reductions in LTL mode, iteration 0 : 24/24 places, 12/12 transitions.
Applied a total of 0 rules in 2 ms. Remains 24 /24 variables (removed 0) and now considering 12/12 (removed 0) transitions.
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-16587930972668910014.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-7120965556492346915.kers'
[2026-05-23 20:35:28] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-16587930972668910014.kers, --Pflows, --basisKERS=/tmp/petrispot-output-7120965556492346915.kers]
Culled 0 columns in 0 ms.
// Phase 1: matrix 12 rows 24 cols 48 entries
Finished phase 1 with 0 SingleSign rule and 11 generalized
[2026-05-23 20:35:28] [INFO ] Computed 13 invariants in 0 ms
Computed 13 P flows in 0 ms.
Exported basis to /tmp/petrispot-output-7120965556492346915.kers
Total runtime 1 ms.
[2026-05-23 20:35:28] [INFO ] Implicit Places using invariants in 59 ms returned []
[2026-05-23 20:35:28] [INFO ] Invariant cache hit.
[2026-05-23 20:35:28] [INFO ] Implicit Places using invariants and state equation in 70 ms returned []
Implicit Place search using SMT with State Equation took 132 ms to find 0 implicit places.
Skipped dead transition search.
Finished structural reductions in LTL mode , in 1 iterations and 136 ms. Remains : 24/24 places, 12/12 transitions.
[2026-05-23 20:35:28] [INFO ] Flatten gal took : 5 ms
[2026-05-23 20:35:28] [INFO ] Flatten gal took : 2 ms
[2026-05-23 20:35:28] [INFO ] Input system was already deterministic with 12 transitions.
[2026-05-23 20:35:28] [INFO ] Flatten gal took : 2 ms
[2026-05-23 20:35:28] [INFO ] Flatten gal took : 2 ms
[2026-05-23 20:35:28] [INFO ] Time to serialize gal into /tmp/CTLCardinality5993643467236297686.gal : 1 ms
[2026-05-23 20:35:28] [INFO ] Time to serialize properties into /tmp/CTLCardinality12543063145212725748.ctl : 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-ctl-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/CTLCardinality5993643467236297686.gal' '-t' 'CGAL' '-ctl' '/tmp/CTLCardinality12543063145212725748.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 -...284
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,195,0.006909,4020,2,198,5,786,6,0,111,625,0


Converting to forward existential form...Done !
original formula: AX(!(E((((AX((F8<=Section_8)) + EF((Section_11<=Section_5))) + ((Section_10>0)||(Section_7<1))) * !(AX((F2<=1)))) U (((Section_2>=1)||(F5...188
=> equivalent forward existential formula: [(FwdU(EY(Init),(((!(EX(!((F8<=Section_8)))) + E(TRUE U (Section_11<=Section_5))) + ((Section_10>0)||(Section_7<...248
Reverse transition relation is exact ! Faster fixpoint algorithm enabled.
(forward)formula 0,0,0.026903,4796,1,0,45,4310,24,27,569,4374,45
FORMULA CircularTrains-PT-012-CTLCardinality-2024-02 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL
Formula is FALSE !

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

ITS tools runner thread asked to quit. Dying gracefully.
Starting structural reductions in LTL mode, iteration 0 : 24/24 places, 12/12 transitions.
Applied a total of 0 rules in 1 ms. Remains 24 /24 variables (removed 0) and now considering 12/12 (removed 0) transitions.
[2026-05-23 20:35:28] [INFO ] Invariant cache hit.
[2026-05-23 20:35:28] [INFO ] Implicit Places using invariants in 66 ms returned [5, 15, 21]
Discarding 3 places :
Implicit Place search using SMT only with invariants took 68 ms to find 3 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 21/24 places, 12/12 transitions.
Applied a total of 0 rules in 0 ms. Remains 21 /21 variables (removed 0) and now considering 12/12 (removed 0) transitions.
Finished structural reductions in LTL mode , in 2 iterations and 71 ms. Remains : 21/24 places, 12/12 transitions.
[2026-05-23 20:35:28] [INFO ] Flatten gal took : 3 ms
[2026-05-23 20:35:28] [INFO ] Flatten gal took : 2 ms
[2026-05-23 20:35:28] [INFO ] Input system was already deterministic with 12 transitions.
[2026-05-23 20:35:28] [INFO ] Flatten gal took : 1 ms
[2026-05-23 20:35:28] [INFO ] Flatten gal took : 1 ms
[2026-05-23 20:35:28] [INFO ] Time to serialize gal into /tmp/CTLCardinality13974926211745658639.gal : 1 ms
[2026-05-23 20:35:28] [INFO ] Time to serialize properties into /tmp/CTLCardinality13232263874407677901.ctl : 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-ctl-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/CTLCardinality13974926211745658639.gal' '-t' 'CGAL' '-ctl' '/tmp/CTLCardinality13232263874407677901.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 -...285
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,195,0.006783,3984,2,161,5,618,6,0,99,492,0


Converting to forward existential form...Done !
original formula: EG(EF(((EF((Section_3<1)) + ((AG((Section_10>=1)) * EX((F5<=F6))) * EX(TRUE))) + (EF((Section_7<=Section_9)) * (Section_10<=0)))))
=> equivalent forward existential formula: [FwdG(Init,E(TRUE U ((E(TRUE U (Section_3<1)) + ((!(E(TRUE U !((Section_10>=1)))) * EX((F5<=F6))) * EX(TRUE))) +...221
Reverse transition relation is exact ! Faster fixpoint algorithm enabled.
(forward)formula 0,1,0.019641,4816,1,0,10,2221,23,3,503,1375,21
FORMULA CircularTrains-PT-012-CTLCardinality-2024-03 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL
Formula is TRUE !

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

Starting structural reductions in LTL mode, iteration 0 : 24/24 places, 12/12 transitions.
Applied a total of 0 rules in 1 ms. Remains 24 /24 variables (removed 0) and now considering 12/12 (removed 0) transitions.
[2026-05-23 20:35:28] [INFO ] Invariant cache hit.
[2026-05-23 20:35:28] [INFO ] Implicit Places using invariants in 43 ms returned [5, 15, 20, 21]
Discarding 4 places :
Implicit Place search using SMT only with invariants took 45 ms to find 4 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 20/24 places, 12/12 transitions.
Applied a total of 0 rules in 1 ms. Remains 20 /20 variables (removed 0) and now considering 12/12 (removed 0) transitions.
Finished structural reductions in LTL mode , in 2 iterations and 47 ms. Remains : 20/24 places, 12/12 transitions.
[2026-05-23 20:35:28] [INFO ] Flatten gal took : 2 ms
[2026-05-23 20:35:28] [INFO ] Flatten gal took : 2 ms
[2026-05-23 20:35:28] [INFO ] Input system was already deterministic with 12 transitions.
[2026-05-23 20:35:28] [INFO ] Flatten gal took : 2 ms
[2026-05-23 20:35:28] [INFO ] Flatten gal took : 2 ms
[2026-05-23 20:35:28] [INFO ] Time to serialize gal into /tmp/CTLCardinality11645040201320989180.gal : 1 ms
[2026-05-23 20:35:28] [INFO ] Time to serialize properties into /tmp/CTLCardinality1366339065967249435.ctl : 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-ctl-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/CTLCardinality11645040201320989180.gal' '-t' 'CGAL' '-ctl' '/tmp/CTLCardinality1366339065967249435.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 -...284
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,195,0.007016,3960,2,141,5,565,6,0,95,451,0


Converting to forward existential form...Done !
original formula: E(((F1<=Section_11)&&((Section_5<=0)||(Section_2>=1))) U EX((Section_1>=1)))
=> equivalent forward existential formula: [(EY(FwdU(Init,((F1<=Section_11)&&((Section_5<=0)||(Section_2>=1))))) * (Section_1>=1))] != FALSE
Hit Full ! (commute/partial/dont) 5/3/7
(forward)formula 0,1,0.008801,4220,1,0,10,565,15,1,162,451,5
FORMULA CircularTrains-PT-012-CTLCardinality-2024-04 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL
Formula is TRUE !

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

Starting structural reductions in LTL mode, iteration 0 : 24/24 places, 12/12 transitions.
Applied a total of 0 rules in 1 ms. Remains 24 /24 variables (removed 0) and now considering 12/12 (removed 0) transitions.
[2026-05-23 20:35:28] [INFO ] Invariant cache hit.
[2026-05-23 20:35:28] [INFO ] Implicit Places using invariants in 68 ms returned [5, 21]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 69 ms to find 2 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 22/24 places, 12/12 transitions.
Applied a total of 0 rules in 1 ms. Remains 22 /22 variables (removed 0) and now considering 12/12 (removed 0) transitions.
Finished structural reductions in LTL mode , in 2 iterations and 72 ms. Remains : 22/24 places, 12/12 transitions.
[2026-05-23 20:35:28] [INFO ] Flatten gal took : 1 ms
[2026-05-23 20:35:28] [INFO ] Flatten gal took : 2 ms
[2026-05-23 20:35:28] [INFO ] Input system was already deterministic with 12 transitions.
[2026-05-23 20:35:28] [INFO ] Flatten gal took : 1 ms
[2026-05-23 20:35:28] [INFO ] Flatten gal took : 2 ms
[2026-05-23 20:35:28] [INFO ] Time to serialize gal into /tmp/CTLCardinality2801748959843130014.gal : 0 ms
[2026-05-23 20:35:28] [INFO ] Time to serialize properties into /tmp/CTLCardinality15094325557621023261.ctl : 0 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/CTLCardinality2801748959843130014.gal' '-t' 'CGAL' '-ctl' '/tmp/CTLCardinality15094325557621023261.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 -...284
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,195,0.007052,3996,2,166,5,660,6,0,103,541,0


Converting to forward existential form...Done !
original formula: E((F8<=F10) U AG(AX(!((((F5>=1)||(Section_3<=F9))&&(Section_5>0))))))
=> equivalent forward existential formula: [(FwdU(Init,(F8<=F10)) * !(E(TRUE U !(!(EX(!(!((((F5>=1)||(Section_3<=F9))&&(Section_5>0))))))))))] != FALSE
Reverse transition relation is exact ! Faster fixpoint algorithm enabled.
(forward)formula 0,0,0.01821,4352,1,0,7,2306,14,0,470,1186,6
FORMULA CircularTrains-PT-012-CTLCardinality-2024-05 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL
Formula is FALSE !

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

Starting structural reductions in SI_CTL mode, iteration 0 : 24/24 places, 12/12 transitions.
Applied a total of 0 rules in 2 ms. Remains 24 /24 variables (removed 0) and now considering 12/12 (removed 0) transitions.
[2026-05-23 20:35:28] [INFO ] Invariant cache hit.
[2026-05-23 20:35:28] [INFO ] Implicit Places using invariants in 63 ms returned [5, 15, 20, 21]
Discarding 4 places :
Implicit Place search using SMT only with invariants took 66 ms to find 4 implicit places.
Starting structural reductions in SI_CTL mode, iteration 1 : 20/24 places, 12/12 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 1 transitions
Trivial Post-agglo rules discarded 1 transitions
Performed 1 trivial Post agglomeration. Transition count delta: 1
Iterating post reduction 0 with 1 rules applied. Total rules applied 1 place count 20 transition count 11
Reduce places removed 1 places and 0 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Iterating post reduction 1 with 2 rules applied. Total rules applied 3 place count 19 transition count 10
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 2 with 1 rules applied. Total rules applied 4 place count 18 transition count 10
Performed 2 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 2 Pre rules applied. Total rules applied 4 place count 18 transition count 8
Deduced a syphon composed of 2 places in 0 ms
Reduce places removed 2 places and 0 transitions.
Iterating global reduction 3 with 4 rules applied. Total rules applied 8 place count 16 transition count 8
Applied a total of 8 rules in 7 ms. Remains 16 /20 variables (removed 4) and now considering 8/12 (removed 4) transitions.
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-16643719778564899232.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-1690962790784907268.kers'
[2026-05-23 20:35:28] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-16643719778564899232.kers, --Pflows, --basisKERS=/tmp/petrispot-output-1690962790784907268.kers]
Culling duplicate invariants (modulo rational): removing 8 columns.
Culled 8 columns in 0 ms.
// Phase 1: matrix 8 rows 8 cols 16 entries
Finished phase 1 with 5 SingleSign rule and 2 generalized
[2026-05-23 20:35:28] [INFO ] Computed 9 invariants in 0 ms
Computed 9 P flows in 0 ms.
Exported basis to /tmp/petrispot-output-1690962790784907268.kers
Total runtime 0 ms.
[2026-05-23 20:35:28] [INFO ] Implicit Places using invariants in 31 ms returned []
[2026-05-23 20:35:28] [INFO ] Invariant cache hit.
[2026-05-23 20:35:28] [INFO ] Implicit Places using invariants and state equation in 44 ms returned []
Implicit Place search using SMT with State Equation took 76 ms to find 0 implicit places.
Starting structural reductions in SI_CTL mode, iteration 2 : 16/24 places, 8/12 transitions.
Finished structural reductions in SI_CTL mode , in 2 iterations and 151 ms. Remains : 16/24 places, 8/12 transitions.
[2026-05-23 20:35:28] [INFO ] Flatten gal took : 2 ms
[2026-05-23 20:35:28] [INFO ] Flatten gal took : 1 ms
[2026-05-23 20:35:28] [INFO ] Input system was already deterministic with 8 transitions.
[2026-05-23 20:35:28] [INFO ] Flatten gal took : 1 ms
[2026-05-23 20:35:28] [INFO ] Flatten gal took : 1 ms
[2026-05-23 20:35:28] [INFO ] Time to serialize gal into /tmp/CTLCardinality10854934990928949431.gal : 1 ms
[2026-05-23 20:35:28] [INFO ] Time to serialize properties into /tmp/CTLCardinality1939050484265194294.ctl : 0 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/CTLCardinality10854934990928949431.gal' '-t' 'CGAL' '-ctl' '/tmp/CTLCardinality1939050484265194294.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 -...284
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,70,0.004475,3876,2,65,5,335,6,0,75,284,0


Converting to forward existential form...Done !
original formula: AG((AG((F9<=0)) + (F1<=F3)))
=> equivalent forward existential formula: [(FwdU((FwdU(Init,TRUE) * !((F1<=F3))),TRUE) * !((F9<=0)))] = FALSE
(forward)formula 0,0,0.006315,4144,1,0,10,413,12,4,145,457,4
FORMULA CircularTrains-PT-012-CTLCardinality-2024-06 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL
Formula is FALSE !

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

Starting structural reductions in LTL mode, iteration 0 : 24/24 places, 12/12 transitions.
Applied a total of 0 rules in 1 ms. Remains 24 /24 variables (removed 0) and now considering 12/12 (removed 0) transitions.
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-3950322619269836682.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-13639166601878712452.kers'
[2026-05-23 20:35:28] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-3950322619269836682.kers, --Pflows, --basisKERS=/tmp/petrispot-output-13639166601878712452.kers]
Culled 0 columns in 0 ms.
// Phase 1: matrix 12 rows 24 cols 48 entries
Finished phase 1 with 0 SingleSign rule and 11 generalized
[2026-05-23 20:35:28] [INFO ] Computed 13 invariants in 0 ms
Computed 13 P flows in 0 ms.
Exported basis to /tmp/petrispot-output-13639166601878712452.kers
Total runtime 0 ms.
[2026-05-23 20:35:28] [INFO ] Implicit Places using invariants in 62 ms returned [15, 20, 21]
Discarding 3 places :
Implicit Place search using SMT only with invariants took 64 ms to find 3 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 21/24 places, 12/12 transitions.
Applied a total of 0 rules in 1 ms. Remains 21 /21 variables (removed 0) and now considering 12/12 (removed 0) transitions.
Finished structural reductions in LTL mode , in 2 iterations and 66 ms. Remains : 21/24 places, 12/12 transitions.
[2026-05-23 20:35:28] [INFO ] Flatten gal took : 2 ms
[2026-05-23 20:35:28] [INFO ] Flatten gal took : 2 ms
[2026-05-23 20:35:28] [INFO ] Input system was already deterministic with 12 transitions.
[2026-05-23 20:35:28] [INFO ] Flatten gal took : 1 ms
[2026-05-23 20:35:28] [INFO ] Flatten gal took : 2 ms
[2026-05-23 20:35:28] [INFO ] Time to serialize gal into /tmp/CTLCardinality9215112947204893135.gal : 1 ms
[2026-05-23 20:35:28] [INFO ] Time to serialize properties into /tmp/CTLCardinality6142304065919318063.ctl : 0 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/CTLCardinality9215112947204893135.gal' '-t' 'CGAL' '-ctl' '/tmp/CTLCardinality6142304065919318063.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,195,0.006467,3952,2,134,5,551,6,0,99,436,0


Converting to forward existential form...Done !
original formula: EF(AX(((F1>F7)||(F2<=1))))
=> equivalent forward existential formula: [(FwdU(Init,TRUE) * !(EX(!(((F1>F7)||(F2<=1))))))] != FALSE
Reverse transition relation is exact ! Faster fixpoint algorithm enabled.
(forward)formula 0,1,0.013392,4228,1,0,8,1870,11,2,431,942,4
FORMULA CircularTrains-PT-012-CTLCardinality-2024-08 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL
Formula is TRUE !

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

Starting structural reductions in SI_CTL mode, iteration 0 : 24/24 places, 12/12 transitions.
Applied a total of 0 rules in 2 ms. Remains 24 /24 variables (removed 0) and now considering 12/12 (removed 0) transitions.
[2026-05-23 20:35:28] [INFO ] Invariant cache hit.
[2026-05-23 20:35:29] [INFO ] Implicit Places using invariants in 43 ms returned [5, 15, 20, 21]
Discarding 4 places :
Implicit Place search using SMT only with invariants took 45 ms to find 4 implicit places.
Starting structural reductions in SI_CTL mode, iteration 1 : 20/24 places, 12/12 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 1 transitions
Trivial Post-agglo rules discarded 1 transitions
Performed 1 trivial Post agglomeration. Transition count delta: 1
Iterating post reduction 0 with 1 rules applied. Total rules applied 1 place count 20 transition count 11
Reduce places removed 1 places and 0 transitions.
Performed 2 Post agglomeration using F-continuation condition.Transition count delta: 2
Iterating post reduction 1 with 3 rules applied. Total rules applied 4 place count 19 transition count 9
Reduce places removed 2 places and 0 transitions.
Iterating post reduction 2 with 2 rules applied. Total rules applied 6 place count 17 transition count 9
Applied a total of 6 rules in 3 ms. Remains 17 /20 variables (removed 3) and now considering 9/12 (removed 3) transitions.
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-18214492926569721648.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-15731921301493224174.kers'
[2026-05-23 20:35:29] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-18214492926569721648.kers, --Pflows, --basisKERS=/tmp/petrispot-output-15731921301493224174.kers]
Culling duplicate invariants (modulo rational): removing 6 columns.
Culled 6 columns in 0 ms.
// Phase 1: matrix 9 rows 11 cols 22 entries
Finished phase 1 with 7 SingleSign rule and 1 generalized
[2026-05-23 20:35:29] [INFO ] Computed 9 invariants in 0 ms
Computed 9 P flows in 0 ms.
Exported basis to /tmp/petrispot-output-15731921301493224174.kers
Total runtime 1 ms.
[2026-05-23 20:35:29] [INFO ] Implicit Places using invariants in 46 ms returned []
[2026-05-23 20:35:29] [INFO ] Invariant cache hit.
[2026-05-23 20:35:29] [INFO ] Implicit Places using invariants and state equation in 39 ms returned []
Implicit Place search using SMT with State Equation took 87 ms to find 0 implicit places.
Starting structural reductions in SI_CTL mode, iteration 2 : 17/24 places, 9/12 transitions.
Finished structural reductions in SI_CTL mode , in 2 iterations and 137 ms. Remains : 17/24 places, 9/12 transitions.
[2026-05-23 20:35:29] [INFO ] Flatten gal took : 1 ms
[2026-05-23 20:35:29] [INFO ] Flatten gal took : 2 ms
[2026-05-23 20:35:29] [INFO ] Input system was already deterministic with 9 transitions.
[2026-05-23 20:35:29] [INFO ] Flatten gal took : 1 ms
[2026-05-23 20:35:29] [INFO ] Flatten gal took : 1 ms
[2026-05-23 20:35:29] [INFO ] Time to serialize gal into /tmp/CTLCardinality10697116073806426963.gal : 1 ms
[2026-05-23 20:35:29] [INFO ] Time to serialize properties into /tmp/CTLCardinality2516049569231211398.ctl : 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-ctl-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/CTLCardinality10697116073806426963.gal' '-t' 'CGAL' '-ctl' '/tmp/CTLCardinality2516049569231211398.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 -...284
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,90,0.005012,3900,2,78,5,375,6,0,80,313,0


Converting to forward existential form...Done !
original formula: EF(AG(EF(((F4>0)||((Section_7<=1)&&(Section_9>0))))))
=> equivalent forward existential formula: [(FwdU(Init,TRUE) * !(E(TRUE U !(E(TRUE U ((F4>0)||((Section_7<=1)&&(Section_9>0))))))))] != FALSE
Reverse transition relation is exact ! Faster fixpoint algorithm enabled.
(forward)formula 0,1,0.009835,4176,1,0,6,874,14,0,358,468,5
FORMULA CircularTrains-PT-012-CTLCardinality-2024-10 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL
Formula is TRUE !

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

Starting structural reductions in LTL mode, iteration 0 : 24/24 places, 12/12 transitions.
Applied a total of 0 rules in 1 ms. Remains 24 /24 variables (removed 0) and now considering 12/12 (removed 0) transitions.
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-7479680307366546498.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-11381886625552665892.kers'
[2026-05-23 20:35:29] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-7479680307366546498.kers, --Pflows, --basisKERS=/tmp/petrispot-output-11381886625552665892.kers]
Culled 0 columns in 0 ms.
// Phase 1: matrix 12 rows 24 cols 48 entries
Finished phase 1 with 0 SingleSign rule and 11 generalized
[2026-05-23 20:35:29] [INFO ] Computed 13 invariants in 0 ms
Computed 13 P flows in 0 ms.
Exported basis to /tmp/petrispot-output-11381886625552665892.kers
Total runtime 1 ms.
[2026-05-23 20:35:29] [INFO ] Implicit Places using invariants in 55 ms returned [5, 15, 20, 21]
Discarding 4 places :
Implicit Place search using SMT only with invariants took 57 ms to find 4 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 20/24 places, 12/12 transitions.
Applied a total of 0 rules in 1 ms. Remains 20 /20 variables (removed 0) and now considering 12/12 (removed 0) transitions.
Finished structural reductions in LTL mode , in 2 iterations and 60 ms. Remains : 20/24 places, 12/12 transitions.
[2026-05-23 20:35:29] [INFO ] Flatten gal took : 2 ms
[2026-05-23 20:35:29] [INFO ] Flatten gal took : 1 ms
[2026-05-23 20:35:29] [INFO ] Input system was already deterministic with 12 transitions.
[2026-05-23 20:35:29] [INFO ] Flatten gal took : 2 ms
[2026-05-23 20:35:29] [INFO ] Flatten gal took : 1 ms
[2026-05-23 20:35:29] [INFO ] Time to serialize gal into /tmp/CTLCardinality9456341049308165934.gal : 0 ms
[2026-05-23 20:35:29] [INFO ] Time to serialize properties into /tmp/CTLCardinality8153355398862767049.ctl : 0 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/CTLCardinality9456341049308165934.gal' '-t' 'CGAL' '-ctl' '/tmp/CTLCardinality8153355398862767049.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,195,0.009486,3960,2,141,5,565,6,0,95,451,0


Converting to forward existential form...Done !
original formula: EX(EF((Section_3<=F9)))
=> equivalent forward existential formula: [(FwdU(EY(Init),TRUE) * (Section_3<=F9))] != FALSE
(forward)formula 0,1,0.013973,4220,1,0,8,696,9,1,187,572,4
FORMULA CircularTrains-PT-012-CTLCardinality-2024-11 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL
Formula is TRUE !

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

Starting structural reductions in LTL mode, iteration 0 : 24/24 places, 12/12 transitions.
Applied a total of 0 rules in 0 ms. Remains 24 /24 variables (removed 0) and now considering 12/12 (removed 0) transitions.
[2026-05-23 20:35:29] [INFO ] Invariant cache hit.
[2026-05-23 20:35:29] [INFO ] Implicit Places using invariants in 35 ms returned [15, 21]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 36 ms to find 2 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 22/24 places, 12/12 transitions.
Applied a total of 0 rules in 0 ms. Remains 22 /22 variables (removed 0) and now considering 12/12 (removed 0) transitions.
Finished structural reductions in LTL mode , in 2 iterations and 36 ms. Remains : 22/24 places, 12/12 transitions.
[2026-05-23 20:35:29] [INFO ] Flatten gal took : 2 ms
[2026-05-23 20:35:29] [INFO ] Flatten gal took : 1 ms
[2026-05-23 20:35:29] [INFO ] Input system was already deterministic with 12 transitions.
[2026-05-23 20:35:29] [INFO ] Flatten gal took : 1 ms
[2026-05-23 20:35:29] [INFO ] Flatten gal took : 1 ms
[2026-05-23 20:35:29] [INFO ] Time to serialize gal into /tmp/CTLCardinality17852355782963935011.gal : 1 ms
[2026-05-23 20:35:29] [INFO ] Time to serialize properties into /tmp/CTLCardinality16106167605666942205.ctl : 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-ctl-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/CTLCardinality17852355782963935011.gal' '-t' 'CGAL' '-ctl' '/tmp/CTLCardinality16106167605666942205.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 -...285
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,195,0.007188,4000,2,169,5,636,6,0,103,496,0


Converting to forward existential form...Done !
original formula: EG(A((F5>=1) U ((Section_12<=Section_3) * (EF(EG((F5<=1))) + AX(((F2<=0)||(F1>=1)))))))
=> equivalent forward existential formula: [FwdG(Init,!((E(!(((Section_12<=Section_3) * (E(TRUE U EG((F5<=1))) + !(EX(!(((F2<=0)||(F1>=1)))))))) U (!((F5>=...353
Reverse transition relation is exact ! Faster fixpoint algorithm enabled.
Using saturation style SCC detection
(forward)formula 0,1,0.03854,5108,1,0,60,6162,36,43,531,7173,53
FORMULA CircularTrains-PT-012-CTLCardinality-2024-12 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL
Formula is TRUE !

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

Starting structural reductions in LTL mode, iteration 0 : 24/24 places, 12/12 transitions.
Applied a total of 0 rules in 0 ms. Remains 24 /24 variables (removed 0) and now considering 12/12 (removed 0) transitions.
[2026-05-23 20:35:29] [INFO ] Invariant cache hit.
[2026-05-23 20:35:29] [INFO ] Implicit Places using invariants in 39 ms returned [5, 15, 20, 21]
Discarding 4 places :
Implicit Place search using SMT only with invariants took 40 ms to find 4 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 20/24 places, 12/12 transitions.
Applied a total of 0 rules in 1 ms. Remains 20 /20 variables (removed 0) and now considering 12/12 (removed 0) transitions.
Finished structural reductions in LTL mode , in 2 iterations and 41 ms. Remains : 20/24 places, 12/12 transitions.
[2026-05-23 20:35:29] [INFO ] Flatten gal took : 2 ms
[2026-05-23 20:35:29] [INFO ] Flatten gal took : 1 ms
[2026-05-23 20:35:29] [INFO ] Input system was already deterministic with 12 transitions.
[2026-05-23 20:35:29] [INFO ] Flatten gal took : 1 ms
[2026-05-23 20:35:29] [INFO ] Flatten gal took : 2 ms
[2026-05-23 20:35:29] [INFO ] Time to serialize gal into /tmp/CTLCardinality3036139011431748748.gal : 1 ms
[2026-05-23 20:35:29] [INFO ] Time to serialize properties into /tmp/CTLCardinality1767500538051988943.ctl : 0 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/CTLCardinality3036139011431748748.gal' '-t' 'CGAL' '-ctl' '/tmp/CTLCardinality1767500538051988943.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,195,0.006338,3960,2,141,5,565,6,0,95,451,0


Converting to forward existential form...Done !
original formula: EX(TRUE)
=> equivalent forward existential formula: [(EY(Init) * TRUE)] != FALSE
(forward)formula 0,1,0.006604,3960,1,0,6,565,7,1,137,451,1
FORMULA CircularTrains-PT-012-CTLCardinality-2024-14 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL
Formula is TRUE !

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

[2026-05-23 20:35:29] [INFO ] Flatten gal took : 2 ms
[2026-05-23 20:35:29] [INFO ] Flatten gal took : 1 ms
Total runtime 6221 ms.

BK_STOP 1779568529429

--------------------
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
+ [[ CTLCardinality = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution CTLCardinality -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600
+ 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 CTLCardinality -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600

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="CircularTrains-PT-012"
export BK_EXAMINATION="CTLCardinality"
export BK_TOOL="itstools"
export BK_RESULT_DIR="/tmp/BK_RESULTS/OUTPUTS"
export BK_TIME_CONFINEMENT="3600"
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 CircularTrains-PT-012, examination is CTLCardinality"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r050-smll-177946901100217"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/CircularTrains-PT-012.tgz
mv CircularTrains-PT-012 execution
cd execution
if [ "CTLCardinality" = "ReachabilityDeadlock" ] || [ "CTLCardinality" = "UpperBounds" ] || [ "CTLCardinality" = "QuasiLiveness" ] || [ "CTLCardinality" = "StableMarking" ] || [ "CTLCardinality" = "Liveness" ] || [ "CTLCardinality" = "OneSafe" ] || [ "CTLCardinality" = "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 [ "CTLCardinality" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "CTLCardinality" != "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 "CTLCardinality.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 '' CTLCardinality.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "CTLCardinality" = "ReachabilityDeadlock" ] || [ "CTLCardinality" = "QuasiLiveness" ] || [ "CTLCardinality" = "StableMarking" ] || [ "CTLCardinality" = "Liveness" ] || [ "CTLCardinality" = "OneSafe" ] ; then
echo "FORMULA_NAME CTLCardinality"
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 ;