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.r018-smll-177946787900003.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 AutonomousCar-PT-01a, examination is LTLCardinality
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r018-smll-177946787900003
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 420K
-rw-r--r-- 1 mcc users 7.4K Mar 5 16:49 CTLCardinality.txt
-rw-r--r-- 1 mcc users 80K Mar 5 16:49 CTLCardinality.xml
-rw-r--r-- 1 mcc users 6.7K Mar 5 16:49 CTLFireability.txt
-rw-r--r-- 1 mcc users 65K Mar 5 16:49 CTLFireability.xml
-rw-r--r-- 1 mcc users 3.5K Mar 15 07:17 LTLCardinality.txt
-rw-r--r-- 1 mcc users 26K Mar 15 07:17 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.2K Mar 15 07:17 LTLFireability.txt
-rw-r--r-- 1 mcc users 19K Mar 15 07:17 LTLFireability.xml
-rw-r--r-- 1 mcc users 8.7K Mar 5 16:49 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 91K Mar 5 16:49 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 6.7K Mar 5 16:49 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 55K Mar 5 16:49 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K Mar 15 07:17 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K Mar 15 07:17 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 11K 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 AutonomousCar-PT-01a-LTLCardinality-00
FORMULA_NAME AutonomousCar-PT-01a-LTLCardinality-01
FORMULA_NAME AutonomousCar-PT-01a-LTLCardinality-02
FORMULA_NAME AutonomousCar-PT-01a-LTLCardinality-03
FORMULA_NAME AutonomousCar-PT-01a-LTLCardinality-04
FORMULA_NAME AutonomousCar-PT-01a-LTLCardinality-05
FORMULA_NAME AutonomousCar-PT-01a-LTLCardinality-06
FORMULA_NAME AutonomousCar-PT-01a-LTLCardinality-07
FORMULA_NAME AutonomousCar-PT-01a-LTLCardinality-08
FORMULA_NAME AutonomousCar-PT-01a-LTLCardinality-09
FORMULA_NAME AutonomousCar-PT-01a-LTLCardinality-10
FORMULA_NAME AutonomousCar-PT-01a-LTLCardinality-11
FORMULA_NAME AutonomousCar-PT-01a-LTLCardinality-12
FORMULA_NAME AutonomousCar-PT-01a-LTLCardinality-13
FORMULA_NAME AutonomousCar-PT-01a-LTLCardinality-14
FORMULA_NAME AutonomousCar-PT-01a-LTLCardinality-15

=== Now, execution of the tool begins

BK_START 1779472202124

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=LTLCardinality
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=AutonomousCar-PT-01a
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
LTLCardinality PT
Running Version 202604301425
[2026-05-22 17:50:04] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, LTLCardinality, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2026-05-22 17:50:04] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-22 17:50:04] [INFO ] Load time of PNML (sax parser for PT used): 86 ms
[2026-05-22 17:50:04] [INFO ] Transformed 25 places.
[2026-05-22 17:50:04] [INFO ] Transformed 35 transitions.
[2026-05-22 17:50:04] [INFO ] Found NUPN structural information;
[2026-05-22 17:50:04] [INFO ] Parsed PT model containing 25 places and 35 transitions and 143 arcs in 303 ms.
Parsed 16 properties from file /home/mcc/execution/LTLCardinality.xml in 30 ms.
Working with output stream class java.io.PrintStream
Initial state reduction rules removed 3 formulas.
Ensure Unique test removed 9 transitions
Reduce redundant transitions removed 9 transitions.
Initial state reduction rules removed 1 formulas.
FORMULA AutonomousCar-PT-01a-LTLCardinality-05 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA AutonomousCar-PT-01a-LTLCardinality-08 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA AutonomousCar-PT-01a-LTLCardinality-09 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA AutonomousCar-PT-01a-LTLCardinality-10 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA AutonomousCar-PT-01a-LTLCardinality-12 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA AutonomousCar-PT-01a-LTLCardinality-14 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA AutonomousCar-PT-01a-LTLCardinality-01 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA AutonomousCar-PT-01a-LTLCardinality-03 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA AutonomousCar-PT-01a-LTLCardinality-04 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA AutonomousCar-PT-01a-LTLCardinality-06 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Support contains 15 out of 25 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 25/25 places, 26/26 transitions.
Applied a total of 0 rules in 16 ms. Remains 25 /25 variables (removed 0) and now considering 26/26 (removed 0) transitions.
[2026-05-22 17:50:05] [INFO ] Flow matrix only has 25 transitions (discarded 1 similar events)
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-1246555956318344131.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-6763152360800965553.kers'
[2026-05-22 17:50:05] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-1246555956318344131.kers, --Pflows, --basisKERS=/tmp/petrispot-output-6763152360800965553.kers]
Normalized transition count is 24 out of 25 initially.
Culling duplicate invariants (modulo rational): removing 1 columns.
Culled 1 columns in 0 ms.
// Phase 1: matrix 24 rows 24 cols 84 entries
Finished phase 1 with 19 SingleSign rule and 0 generalized
[2026-05-22 17:50:05] [INFO ] Computed 6 invariants in 0 ms
Computed 6 P flows in 2 ms.
Exported basis to /tmp/petrispot-output-6763152360800965553.kers
Total runtime 2 ms.
[2026-05-22 17:50:05] [INFO ] Implicit Places using invariants in 331 ms returned []
[2026-05-22 17:50:05] [INFO ] Flow matrix only has 25 transitions (discarded 1 similar events)
[2026-05-22 17:50:05] [INFO ] Invariant cache hit.
[2026-05-22 17:50:05] [INFO ] State equation strengthened by 7 read => feed constraints.
[2026-05-22 17:50:05] [INFO ] Implicit Places using invariants and state equation in 146 ms returned [23]
Discarding 1 places :
Implicit Place search using SMT with State Equation took 548 ms to find 1 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 24/25 places, 26/26 transitions.
Applied a total of 0 rules in 17 ms. Remains 24 /24 variables (removed 0) and now considering 26/26 (removed 0) transitions.
Finished structural reductions in LTL mode , in 2 iterations and 618 ms. Remains : 24/25 places, 26/26 transitions.
Starting structural reductions in LTL mode, iteration 0 : 24/24 places, 26/26 transitions.
Applied a total of 0 rules in 2 ms. Remains 24 /24 variables (removed 0) and now considering 26/26 (removed 0) transitions.
[2026-05-22 17:50:05] [INFO ] Flow matrix only has 25 transitions (discarded 1 similar events)
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-10191243076499488097.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-1437157961038359648.kers'
[2026-05-22 17:50:05] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-10191243076499488097.kers, --Pflows, --basisKERS=/tmp/petrispot-output-1437157961038359648.kers]
Normalized transition count is 24 out of 25 initially.
Culling duplicate invariants (modulo rational): removing 1 columns.
Culled 1 columns in 0 ms.
// Phase 1: matrix 24 rows 23 cols 80 entries
Finished phase 1 with 19 SingleSign rule and 0 generalized
[2026-05-22 17:50:05] [INFO ] Computed 5 invariants in 0 ms
Computed 5 P flows in 0 ms.
Exported basis to /tmp/petrispot-output-1437157961038359648.kers
Total runtime 0 ms.
[2026-05-22 17:50:05] [INFO ] Implicit Places using invariants in 62 ms returned []
[2026-05-22 17:50:05] [INFO ] Flow matrix only has 25 transitions (discarded 1 similar events)
[2026-05-22 17:50:05] [INFO ] Invariant cache hit.
[2026-05-22 17:50:06] [INFO ] State equation strengthened by 7 read => feed constraints.
[2026-05-22 17:50:06] [INFO ] Implicit Places using invariants and state equation in 95 ms returned []
Implicit Place search using SMT with State Equation took 160 ms to find 0 implicit places.
Running 25 sub problems to find dead transitions.
[2026-05-22 17:50:06] [INFO ] Flow matrix only has 25 transitions (discarded 1 similar events)
[2026-05-22 17:50:06] [INFO ] Invariant cache hit.
[2026-05-22 17:50:06] [INFO ] State equation strengthened by 7 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/23 variables, 23/23 constraints. Problems are: Problem set: 0 solved, 25 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/23 variables, 0/23 constraints. Problems are: Problem set: 0 solved, 25 unsolved
At refinement iteration 2 (OVERLAPS) 1/24 variables, 5/28 constraints. Problems are: Problem set: 0 solved, 25 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/24 variables, 1/29 constraints. Problems are: Problem set: 0 solved, 25 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/24 variables, 3/32 constraints. Problems are: Problem set: 0 solved, 25 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/24 variables, 0/32 constraints. Problems are: Problem set: 0 solved, 25 unsolved
At refinement iteration 6 (OVERLAPS) 24/48 variables, 24/56 constraints. Problems are: Problem set: 0 solved, 25 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/48 variables, 6/62 constraints. Problems are: Problem set: 0 solved, 25 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/48 variables, 0/62 constraints. Problems are: Problem set: 0 solved, 25 unsolved
At refinement iteration 9 (OVERLAPS) 1/49 variables, 1/63 constraints. Problems are: Problem set: 0 solved, 25 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/49 variables, 0/63 constraints. Problems are: Problem set: 0 solved, 25 unsolved
At refinement iteration 11 (OVERLAPS) 0/49 variables, 0/63 constraints. Problems are: Problem set: 0 solved, 25 unsolved
No progress, stopping.
After SMT solving in domain Real declared 49/49 variables, and 63 constraints, problems are : Problem set: 0 solved, 25 unsolved in 1740 ms.
Refiners :[Domain max(s): 24/24 constraints, Positive P Invariants (semi-flows): 5/5 constraints, State Equation: 24/24 constraints, ReadFeed: 7/7 constraints, PredecessorRefiner: 25/25 constraints, Known Traps: 3/3 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 25 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/23 variables, 23/23 constraints. Problems are: Problem set: 0 solved, 25 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/23 variables, 0/23 constraints. Problems are: Problem set: 0 solved, 25 unsolved
At refinement iteration 2 (OVERLAPS) 1/24 variables, 5/28 constraints. Problems are: Problem set: 0 solved, 25 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/24 variables, 1/29 constraints. Problems are: Problem set: 0 solved, 25 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/24 variables, 3/32 constraints. Problems are: Problem set: 0 solved, 25 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/24 variables, 0/32 constraints. Problems are: Problem set: 0 solved, 25 unsolved
At refinement iteration 6 (OVERLAPS) 24/48 variables, 24/56 constraints. Problems are: Problem set: 0 solved, 25 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/48 variables, 6/62 constraints. Problems are: Problem set: 0 solved, 25 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/48 variables, 25/87 constraints. Problems are: Problem set: 0 solved, 25 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/48 variables, 0/87 constraints. Problems are: Problem set: 0 solved, 25 unsolved
At refinement iteration 10 (OVERLAPS) 1/49 variables, 1/88 constraints. Problems are: Problem set: 0 solved, 25 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/49 variables, 0/88 constraints. Problems are: Problem set: 0 solved, 25 unsolved
At refinement iteration 12 (OVERLAPS) 0/49 variables, 0/88 constraints. Problems are: Problem set: 0 solved, 25 unsolved
No progress, stopping.
After SMT solving in domain Int declared 49/49 variables, and 88 constraints, problems are : Problem set: 0 solved, 25 unsolved in 1084 ms.
Refiners :[Domain max(s): 24/24 constraints, Positive P Invariants (semi-flows): 5/5 constraints, State Equation: 24/24 constraints, ReadFeed: 7/7 constraints, PredecessorRefiner: 25/25 constraints, Known Traps: 3/3 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 2886ms problems are : Problem set: 0 solved, 25 unsolved
Search for dead transitions found 0 dead transitions in 2907ms
Finished structural reductions in LTL mode , in 1 iterations and 3106 ms. Remains : 24/24 places, 26/26 transitions.
Support contains 15 out of 24 places after structural reductions.
[2026-05-22 17:50:09] [INFO ] Flatten gal took : 39 ms
[2026-05-22 17:50:09] [INFO ] Flatten gal took : 14 ms
[2026-05-22 17:50:09] [INFO ] Input system was already deterministic with 26 transitions.
Reduction of identical properties reduced properties to check from 12 to 11
RANDOM walk for 40000 steps (3490 resets) in 1162 ms. (34 steps per ms) remains 1/11 properties
BEST_FIRST walk for 40003 steps (1508 resets) in 375 ms. (106 steps per ms) remains 1/1 properties
[2026-05-22 17:50:09] [INFO ] Flow matrix only has 25 transitions (discarded 1 similar events)
[2026-05-22 17:50:09] [INFO ] Invariant cache hit.
[2026-05-22 17:50:09] [INFO ] State equation strengthened by 7 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/2 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Problem AtomicPropp5 is UNSAT
After SMT solving in domain Real declared 9/49 variables, and 4 constraints, problems are : Problem set: 1 solved, 0 unsolved in 36 ms.
Refiners :[Domain max(s): 2/24 constraints, Positive P Invariants (semi-flows): 2/5 constraints, State Equation: 0/24 constraints, ReadFeed: 0/7 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 42ms problems are : Problem set: 1 solved, 0 unsolved
Skipping Parikh replay, no witness traces provided.
FORMULA AutonomousCar-PT-01a-LTLCardinality-15 FALSE TECHNIQUES REACHABILITY_KNOWLEDGE
Successfully simplified 1 atomic propositions for a total of 5 simplifications.
FORMULA AutonomousCar-PT-01a-LTLCardinality-11 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Computed a total of 3 stabilizing places and 2 stable transitions
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(G(F(p0)))'
Support contains 2 out of 24 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 24/24 places, 26/26 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 2 transitions
Trivial Post-agglo rules discarded 2 transitions
Performed 2 trivial Post agglomeration. Transition count delta: 2
Iterating post reduction 0 with 2 rules applied. Total rules applied 2 place count 24 transition count 24
Reduce places removed 2 places and 0 transitions.
Iterating post reduction 1 with 2 rules applied. Total rules applied 4 place count 22 transition count 24
Discarding 2 places :
Symmetric choice reduction at 2 with 2 rule applications. Total rules 6 place count 20 transition count 21
Iterating global reduction 2 with 2 rules applied. Total rules applied 8 place count 20 transition count 21
Performed 3 Post agglomeration using F-continuation condition.Transition count delta: 3
Deduced a syphon composed of 3 places in 0 ms
Reduce places removed 3 places and 0 transitions.
Iterating global reduction 2 with 6 rules applied. Total rules applied 14 place count 17 transition count 18
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 0
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 2 with 2 rules applied. Total rules applied 16 place count 16 transition count 18
Applied a total of 16 rules in 32 ms. Remains 16 /24 variables (removed 8) and now considering 18/26 (removed 8) transitions.
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-7517882476601625956.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-5367618757512231816.kers'
[2026-05-22 17:50:10] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-7517882476601625956.kers, --Pflows, --basisKERS=/tmp/petrispot-output-5367618757512231816.kers]
Normalized transition count is 17 out of 18 initially.
Culling duplicate invariants (modulo rational): removing 2 columns.
Culled 2 columns in 0 ms.
// Phase 1: matrix 17 rows 14 cols 65 entries
Finished phase 1 with 12 SingleSign rule and 0 generalized
[2026-05-22 17:50:10] [INFO ] Computed 4 invariants in 0 ms
Computed 4 P flows in 6 ms.
Exported basis to /tmp/petrispot-output-5367618757512231816.kers
Total runtime 6 ms.
[2026-05-22 17:50:10] [INFO ] Implicit Places using invariants in 62 ms returned [1]
Discarding 1 places :
Implicit Place search using SMT only with invariants took 65 ms to find 1 implicit places.
Starting structural reductions in SI_LTL mode, iteration 1 : 15/24 places, 18/26 transitions.
Applied a total of 0 rules in 4 ms. Remains 15 /15 variables (removed 0) and now considering 18/18 (removed 0) transitions.
Finished structural reductions in SI_LTL mode , in 2 iterations and 102 ms. Remains : 15/24 places, 18/26 transitions.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(G(F(p0)))'
Stuttering acceptance computed with spot in 351 ms :[(NOT p0), (NOT p0)]
Running random walk in product with property : AutonomousCar-PT-01a-LTLCardinality-00
Product exploration explored 100000 steps with 7 reset in 407 ms.
Product exploration explored 100000 steps with 0 reset in 254 ms.
Computed a total of 3 stabilizing places and 3 stable transitions
Computed a total of 3 stabilizing places and 3 stable transitions
Knowledge based reduction with 3 factoid took 86 ms. Reduced automaton from 2 states, 3 edges and 1 AP (stutter insensitive) to 2 states, 3 edges and 1 AP (stutter insensitive).
RANDOM walk for 4 steps (0 resets) in 4 ms. (0 steps per ms) remains 0/1 properties
Knowledge based reduction with 3 factoid took 89 ms. Reduced automaton from 2 states, 3 edges and 1 AP (stutter insensitive) to 2 states, 3 edges and 1 AP (stutter insensitive).
Stuttering acceptance computed with spot in 104 ms :[(NOT p0), (NOT p0)]
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-16587432277319646810.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-4954078834658705786.kers'
[2026-05-22 17:50:11] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-16587432277319646810.kers, --Pflows, --basisKERS=/tmp/petrispot-output-4954078834658705786.kers]
Normalized transition count is 17 out of 18 initially.
Culling duplicate invariants (modulo rational): removing 1 columns.
Culled 1 columns in 0 ms.
// Phase 1: matrix 17 rows 14 cols 65 entries
Finished phase 1 with 12 SingleSign rule and 0 generalized
[2026-05-22 17:50:11] [INFO ] Computed 3 invariants in 0 ms
Computed 3 P flows in 0 ms.
Exported basis to /tmp/petrispot-output-4954078834658705786.kers
Total runtime 0 ms.
[2026-05-22 17:50:11] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2026-05-22 17:50:11] [INFO ] [Real]Absence check using state equation in 16 ms returned sat
[2026-05-22 17:50:11] [INFO ] State equation strengthened by 2 read => feed constraints.
[2026-05-22 17:50:11] [INFO ] [Real]Added 2 Read/Feed constraints in 3 ms returned sat
[2026-05-22 17:50:11] [INFO ] Computed and/alt/rep : 17/78/17 causal constraints (skipped 0 transitions) in 4 ms.
[2026-05-22 17:50:11] [INFO ] Added : 0 causal constraints over 0 iterations in 15 ms. Result :sat
Could not prove EG (NOT p0)
Knowledge-based reduction took 418 ms.
Stuttering acceptance computed with spot in 105 ms :[(NOT p0), (NOT p0)]
Support contains 2 out of 15 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 15/15 places, 18/18 transitions.
Applied a total of 0 rules in 3 ms. Remains 15 /15 variables (removed 0) and now considering 18/18 (removed 0) transitions.
[2026-05-22 17:50:11] [INFO ] Invariant cache hit.
[2026-05-22 17:50:11] [INFO ] Implicit Places using invariants in 46 ms returned []
[2026-05-22 17:50:11] [INFO ] Invariant cache hit.
[2026-05-22 17:50:12] [INFO ] State equation strengthened by 2 read => feed constraints.
[2026-05-22 17:50:12] [INFO ] Implicit Places using invariants and state equation in 94 ms returned [12]
Discarding 1 places :
Implicit Place search using SMT with State Equation took 142 ms to find 1 implicit places.
Starting structural reductions in SI_LTL mode, iteration 1 : 14/15 places, 18/18 transitions.
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 2 place count 13 transition count 17
Applied a total of 2 rules in 5 ms. Remains 13 /14 variables (removed 1) and now considering 17/18 (removed 1) transitions.
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-13716592890427113021.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-435318156639529500.kers'
[2026-05-22 17:50:12] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-13716592890427113021.kers, --Pflows, --basisKERS=/tmp/petrispot-output-435318156639529500.kers]
Normalized transition count is 16 out of 17 initially.
Culled 0 columns in 0 ms.
// Phase 1: matrix 16 rows 13 cols 62 entries
Finished phase 1 with 11 SingleSign rule and 0 generalized
[2026-05-22 17:50:12] [INFO ] Computed 2 invariants in 0 ms
Computed 2 P flows in 1 ms.
Exported basis to /tmp/petrispot-output-435318156639529500.kers
Total runtime 1 ms.
[2026-05-22 17:50:12] [INFO ] Implicit Places using invariants in 45 ms returned []
[2026-05-22 17:50:12] [INFO ] Invariant cache hit.
[2026-05-22 17:50:12] [INFO ] State equation strengthened by 2 read => feed constraints.
[2026-05-22 17:50:12] [INFO ] Implicit Places using invariants and state equation in 64 ms returned []
Implicit Place search using SMT with State Equation took 111 ms to find 0 implicit places.
Starting structural reductions in SI_LTL mode, iteration 2 : 13/15 places, 17/18 transitions.
Finished structural reductions in SI_LTL mode , in 2 iterations and 261 ms. Remains : 13/15 places, 17/18 transitions.
Computed a total of 4 stabilizing places and 6 stable transitions
Computed a total of 4 stabilizing places and 6 stable transitions
Knowledge based reduction with 3 factoid took 72 ms. Reduced automaton from 2 states, 3 edges and 1 AP (stutter insensitive) to 2 states, 3 edges and 1 AP (stutter insensitive).
RANDOM walk for 4 steps (0 resets) in 5 ms. (0 steps per ms) remains 0/1 properties
Knowledge based reduction with 3 factoid took 86 ms. Reduced automaton from 2 states, 3 edges and 1 AP (stutter insensitive) to 2 states, 3 edges and 1 AP (stutter insensitive).
Stuttering acceptance computed with spot in 106 ms :[(NOT p0), (NOT p0)]
[2026-05-22 17:50:12] [INFO ] Invariant cache hit.
[2026-05-22 17:50:12] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2026-05-22 17:50:12] [INFO ] [Real]Absence check using state equation in 16 ms returned sat
[2026-05-22 17:50:12] [INFO ] State equation strengthened by 2 read => feed constraints.
[2026-05-22 17:50:12] [INFO ] [Real]Added 2 Read/Feed constraints in 2 ms returned sat
[2026-05-22 17:50:12] [INFO ] Computed and/alt/rep : 15/67/15 causal constraints (skipped 1 transitions) in 3 ms.
[2026-05-22 17:50:12] [INFO ] Added : 0 causal constraints over 0 iterations in 9 ms. Result :sat
Could not prove EG (NOT p0)
Knowledge-based reduction took 352 ms.
Stuttering acceptance computed with spot in 112 ms :[(NOT p0), (NOT p0)]
Stuttering acceptance computed with spot in 106 ms :[(NOT p0), (NOT p0)]
Product exploration explored 100000 steps with 0 reset in 156 ms.
Product exploration explored 100000 steps with 3 reset in 183 ms.
Built C files in :
/tmp/ltsmin3627375165160299465
[2026-05-22 17:50:13] [INFO ] Computing symmetric may disable matrix : 17 transitions.
[2026-05-22 17:50:13] [INFO ] Computation of Complete disable matrix. took 2 ms. Total solver calls (SAT/UNSAT): 0(0/0)
[2026-05-22 17:50:13] [INFO ] Computing symmetric may enable matrix : 17 transitions.
[2026-05-22 17:50:13] [INFO ] Computation of Complete enable matrix. took 1 ms. Total solver calls (SAT/UNSAT): 0(0/0)
[2026-05-22 17:50:13] [INFO ] Computing Do-Not-Accords matrix : 17 transitions.
[2026-05-22 17:50:13] [INFO ] Computation of Completed DNA matrix. took 0 ms. Total solver calls (SAT/UNSAT): 0(0/0)
[2026-05-22 17:50:13] [INFO ] Built C files in 50ms conformant to PINS (ltsmin variant)in folder :/tmp/ltsmin3627375165160299465
Running compilation step : cd /tmp/ltsmin3627375165160299465;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.ltsmin.binaries_1.0.0.202604301425/bin/limit_time.pl' '3' 'gcc' '-c' '-I/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.ltsmin.binaries_1.0.0.202604301425/bin/include/' '-I.' '-std=c99' '-fPIC' '-O0' 'model.c'
Compilation finished in 398 ms.
Running link step : cd /tmp/ltsmin3627375165160299465;'gcc' '-shared' '-o' 'gal.so' 'model.o'
Link finished in 48 ms.
Running LTSmin : cd /tmp/ltsmin3627375165160299465;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.ltsmin.binaries_1.0.0.202604301425/bin/pins2lts-seq-linux64' './gal.so' '-p' '--pins-guards' '--when' '--hoa' '/tmp/stateBased6091855753760729968.hoa' '--buchi-type=spotba'
LTSmin run took 57 ms.
FORMULA AutonomousCar-PT-01a-LTLCardinality-00 TRUE TECHNIQUES PARTIAL_ORDER EXPLICIT LTSMIN SAT_SMT
Treatment of property AutonomousCar-PT-01a-LTLCardinality-00 finished in 3578 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X((X(p0)&&G(p1))))'
Support contains 4 out of 24 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 24/24 places, 26/26 transitions.
Discarding 2 places :
Symmetric choice reduction at 0 with 2 rule applications. Total rules 2 place count 22 transition count 23
Iterating global reduction 0 with 2 rules applied. Total rules applied 4 place count 22 transition count 23
Applied a total of 4 rules in 1 ms. Remains 22 /24 variables (removed 2) and now considering 23/26 (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-16200917091092087970.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-12013022569518015066.kers'
[2026-05-22 17:50:13] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-16200917091092087970.kers, --Pflows, --basisKERS=/tmp/petrispot-output-12013022569518015066.kers]
Normalized transition count is 22 out of 23 initially.
Culling duplicate invariants (modulo rational): removing 1 columns.
Culled 1 columns in 0 ms.
// Phase 1: matrix 22 rows 21 cols 72 entries
Finished phase 1 with 18 SingleSign rule and 0 generalized
[2026-05-22 17:50:13] [INFO ] Computed 4 invariants in 0 ms
Computed 4 P flows in 0 ms.
Exported basis to /tmp/petrispot-output-12013022569518015066.kers
Total runtime 0 ms.
[2026-05-22 17:50:13] [INFO ] Implicit Places using invariants in 40 ms returned [1]
Discarding 1 places :
Implicit Place search using SMT only with invariants took 41 ms to find 1 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 21/24 places, 23/26 transitions.
Applied a total of 0 rules in 0 ms. Remains 21 /21 variables (removed 0) and now considering 23/23 (removed 0) transitions.
Finished structural reductions in LTL mode , in 2 iterations and 42 ms. Remains : 21/24 places, 23/26 transitions.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X((X(p0)&&G(p1))))'
Stuttering acceptance computed with spot in 199 ms :[true, (OR (NOT p0) (NOT p1)), (OR (NOT p0) (NOT p1)), (OR (NOT p1) (NOT p0)), (NOT p1)]
Running random walk in product with property : AutonomousCar-PT-01a-LTLCardinality-02
Entered a terminal (fully accepting) state of product in 2 steps with 0 reset in 0 ms.
FORMULA AutonomousCar-PT-01a-LTLCardinality-02 FALSE TECHNIQUES STUTTER_TEST
Treatment of property AutonomousCar-PT-01a-LTLCardinality-02 finished in 273 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(F(((!p0&&X(X(p1)))||G(p1))))'
Support contains 4 out of 24 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 24/24 places, 26/26 transitions.
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 1 place count 23 transition count 24
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 23 transition count 24
Applied a total of 2 rules in 1 ms. Remains 23 /24 variables (removed 1) and now considering 24/26 (removed 2) transitions.
[2026-05-22 17:50:13] [INFO ] Flow matrix only has 23 transitions (discarded 1 similar events)
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-4018727041536705910.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-12023138055851558028.kers'
[2026-05-22 17:50:13] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-4018727041536705910.kers, --Pflows, --basisKERS=/tmp/petrispot-output-12023138055851558028.kers]
Normalized transition count is 22 out of 23 initially.
Culling duplicate invariants (modulo rational): removing 1 columns.
Culled 1 columns in 0 ms.
// Phase 1: matrix 22 rows 22 cols 72 entries
Finished phase 1 with 18 SingleSign rule and 0 generalized
[2026-05-22 17:50:13] [INFO ] Computed 5 invariants in 0 ms
Computed 5 P flows in 0 ms.
Exported basis to /tmp/petrispot-output-12023138055851558028.kers
Total runtime 0 ms.
[2026-05-22 17:50:14] [INFO ] Implicit Places using invariants in 40 ms returned [1]
Discarding 1 places :
Implicit Place search using SMT only with invariants took 41 ms to find 1 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 22/24 places, 24/26 transitions.
Applied a total of 0 rules in 1 ms. Remains 22 /22 variables (removed 0) and now considering 24/24 (removed 0) transitions.
Finished structural reductions in LTL mode , in 2 iterations and 45 ms. Remains : 22/24 places, 24/26 transitions.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(F((G(p0)||(X(X(p0))&&p1))))'
Stuttering acceptance computed with spot in 164 ms :[(NOT p0), (NOT p0), (NOT p0), (NOT p0)]
Running random walk in product with property : AutonomousCar-PT-01a-LTLCardinality-07
Product exploration explored 100000 steps with 5 reset in 159 ms.
Stuttering criterion allowed to conclude after 12 steps with 0 reset in 1 ms.
FORMULA AutonomousCar-PT-01a-LTLCardinality-07 FALSE TECHNIQUES STUTTER_TEST
Treatment of property AutonomousCar-PT-01a-LTLCardinality-07 finished in 404 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X(((G(p1)&&p0)||(X((F(!p3)||G(!p4)))&&p2))))'
Support contains 5 out of 24 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 24/24 places, 26/26 transitions.
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 1 place count 23 transition count 25
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 23 transition count 25
Applied a total of 2 rules in 2 ms. Remains 23 /24 variables (removed 1) and now considering 25/26 (removed 1) transitions.
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-18261920305972752684.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-7920225487407391505.kers'
[2026-05-22 17:50:14] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-18261920305972752684.kers, --Pflows, --basisKERS=/tmp/petrispot-output-7920225487407391505.kers]
Normalized transition count is 24 out of 25 initially.
Culling duplicate invariants (modulo rational): removing 1 columns.
Culled 1 columns in 0 ms.
// Phase 1: matrix 24 rows 22 cols 80 entries
Finished phase 1 with 19 SingleSign rule and 0 generalized
[2026-05-22 17:50:14] [INFO ] Computed 4 invariants in 0 ms
Computed 4 P flows in 0 ms.
Exported basis to /tmp/petrispot-output-7920225487407391505.kers
Total runtime 1 ms.
[2026-05-22 17:50:14] [INFO ] Implicit Places using invariants in 64 ms returned [1]
Discarding 1 places :
Implicit Place search using SMT only with invariants took 65 ms to find 1 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 22/24 places, 25/26 transitions.
Applied a total of 0 rules in 0 ms. Remains 22 /22 variables (removed 0) and now considering 25/25 (removed 0) transitions.
Finished structural reductions in LTL mode , in 2 iterations and 68 ms. Remains : 22/24 places, 25/26 transitions.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X(((G(p1)&&p0)||(X((F(p3)||G(p4)))&&p2))))'
Stuttering acceptance computed with spot in 469 ms :[true, (NOT p3), (OR (AND (NOT p0) (NOT p3) (NOT p4)) (AND (NOT p1) (NOT p3) (NOT p4)) (AND (NOT p0) (NOT p2)) (AND (NOT p1) (NOT p2))), (OR (AND (NOT p0) (NOT p3) (NOT p4)) (AND (NOT p1) (NOT p3) (NOT p4)) (AND (NOT p0) (NOT p2)) (AND (NOT p1) (NOT p2))), (NOT p1), (AND (NOT p3) (NOT p4)), (AND (NOT p3) (NOT p4) (NOT p1)), (AND (NOT p3) (NOT p1))]
Running random walk in product with property : AutonomousCar-PT-01a-LTLCardinality-13
Entered a terminal (fully accepting) state of product in 1 steps with 0 reset in 0 ms.
FORMULA AutonomousCar-PT-01a-LTLCardinality-13 FALSE TECHNIQUES STUTTER_TEST
Treatment of property AutonomousCar-PT-01a-LTLCardinality-13 finished in 591 ms.
All properties solved by simple procedures.
Total runtime 10368 ms.

BK_STOP 1779472215065

--------------------
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
+ [[ LTLCardinality = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution LTLCardinality -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 LTLCardinality -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="AutonomousCar-PT-01a"
export BK_EXAMINATION="LTLCardinality"
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 AutonomousCar-PT-01a, examination is LTLCardinality"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r018-smll-177946787900003"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/AutonomousCar-PT-01a.tgz
mv AutonomousCar-PT-01a execution
cd execution
if [ "LTLCardinality" = "ReachabilityDeadlock" ] || [ "LTLCardinality" = "UpperBounds" ] || [ "LTLCardinality" = "QuasiLiveness" ] || [ "LTLCardinality" = "StableMarking" ] || [ "LTLCardinality" = "Liveness" ] || [ "LTLCardinality" = "OneSafe" ] || [ "LTLCardinality" = "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 [ "LTLCardinality" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "LTLCardinality" != "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 "LTLCardinality.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 '' LTLCardinality.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "LTLCardinality" = "ReachabilityDeadlock" ] || [ "LTLCardinality" = "QuasiLiveness" ] || [ "LTLCardinality" = "StableMarking" ] || [ "LTLCardinality" = "Liveness" ] || [ "LTLCardinality" = "OneSafe" ] ; then
echo "FORMULA_NAME LTLCardinality"
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 ;