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.r114-smll-177955740700558.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2026-input.qcow2 backing_fmt=qcow2 cluster_size=65536 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
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=====================================================================
Generated by BenchKit 2-5973
Executing tool itstools
Input is ErlangenMainframeV0-PT-1302, examination is ReachabilityCardinality
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r114-smll-177955740700558
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 81M
-rw-r--r-- 1 mcc users 7.4K Mar 7 05:02 CTLCardinality.txt
-rw-r--r-- 1 mcc users 81K Mar 7 05:02 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.9K Mar 7 05:02 CTLFireability.txt
-rw-r--r-- 1 mcc users 51K Mar 7 05:02 CTLFireability.xml
-rw-r--r-- 1 mcc users 3.7K Mar 15 09:59 LTLCardinality.txt
-rw-r--r-- 1 mcc users 26K Mar 15 09:59 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.5K Mar 15 09:59 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K Mar 15 09:59 LTLFireability.xml
-rw-r--r-- 1 mcc users 6.4K Mar 7 05:02 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 55K Mar 7 05:02 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 8.4K Mar 7 05:02 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 66K Mar 7 05:02 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.8K Mar 15 09:59 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.8K Mar 15 09:59 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 equiv_col
-rw-r--r-- 1 mcc users 5 Mar 3 18:30 instance
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 iscolored
-rw-r--r-- 1 mcc users 81M 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 ErlangenMainframeV0-PT-1302-ReachabilityCardinality-2024-00
FORMULA_NAME ErlangenMainframeV0-PT-1302-ReachabilityCardinality-2024-01
FORMULA_NAME ErlangenMainframeV0-PT-1302-ReachabilityCardinality-2024-02
FORMULA_NAME ErlangenMainframeV0-PT-1302-ReachabilityCardinality-2024-03
FORMULA_NAME ErlangenMainframeV0-PT-1302-ReachabilityCardinality-2024-04
FORMULA_NAME ErlangenMainframeV0-PT-1302-ReachabilityCardinality-2024-05
FORMULA_NAME ErlangenMainframeV0-PT-1302-ReachabilityCardinality-2024-06
FORMULA_NAME ErlangenMainframeV0-PT-1302-ReachabilityCardinality-2024-07
FORMULA_NAME ErlangenMainframeV0-PT-1302-ReachabilityCardinality-2024-08
FORMULA_NAME ErlangenMainframeV0-PT-1302-ReachabilityCardinality-2024-09
FORMULA_NAME ErlangenMainframeV0-PT-1302-ReachabilityCardinality-2024-10
FORMULA_NAME ErlangenMainframeV0-PT-1302-ReachabilityCardinality-2024-11
FORMULA_NAME ErlangenMainframeV0-PT-1302-ReachabilityCardinality-2024-12
FORMULA_NAME ErlangenMainframeV0-PT-1302-ReachabilityCardinality-2024-13
FORMULA_NAME ErlangenMainframeV0-PT-1302-ReachabilityCardinality-2024-14
FORMULA_NAME ErlangenMainframeV0-PT-1302-ReachabilityCardinality-2024-15

=== Now, execution of the tool begins

BK_START 1779964586441

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=ReachabilityCardinality
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=ErlangenMainframeV0-PT-1302
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
ReachabilityCardinality PT
Running Version 202604301425
[2026-05-28 10:36:28] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, ReachabilityCardinality, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2026-05-28 10:36:28] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-28 10:36:33] [INFO ] Load time of PNML (sax parser for PT used): 4224 ms
[2026-05-28 10:36:33] [INFO ] Transformed 297 places.
[2026-05-28 10:36:33] [INFO ] Transformed 55594 transitions.
[2026-05-28 10:36:33] [INFO ] Found NUPN structural information;
[2026-05-28 10:36:33] [INFO ] Parsed PT model containing 297 places and 55594 transitions and 1622818 arcs in 4902 ms.
Parsed 16 properties from file /home/mcc/execution/ReachabilityCardinality.xml in 22 ms.
Working with output stream class java.io.PrintStream
FORMULA ErlangenMainframeV0-PT-1302-ReachabilityCardinality-2024-03 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA ErlangenMainframeV0-PT-1302-ReachabilityCardinality-2024-06 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA ErlangenMainframeV0-PT-1302-ReachabilityCardinality-2024-08 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA ErlangenMainframeV0-PT-1302-ReachabilityCardinality-2024-09 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
RANDOM walk for 40000 steps (8 resets) in 49266 ms. (0 steps per ms) remains 2/12 properties
FORMULA ErlangenMainframeV0-PT-1302-ReachabilityCardinality-2024-15 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA ErlangenMainframeV0-PT-1302-ReachabilityCardinality-2024-14 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA ErlangenMainframeV0-PT-1302-ReachabilityCardinality-2024-13 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA ErlangenMainframeV0-PT-1302-ReachabilityCardinality-2024-12 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA ErlangenMainframeV0-PT-1302-ReachabilityCardinality-2024-11 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA ErlangenMainframeV0-PT-1302-ReachabilityCardinality-2024-07 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA ErlangenMainframeV0-PT-1302-ReachabilityCardinality-2024-05 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA ErlangenMainframeV0-PT-1302-ReachabilityCardinality-2024-04 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA ErlangenMainframeV0-PT-1302-ReachabilityCardinality-2024-02 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA ErlangenMainframeV0-PT-1302-ReachabilityCardinality-2024-00 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
BEST_FIRST walk for 40004 steps (8 resets) in 6650 ms. (6 steps per ms) remains 2/2 properties
BEST_FIRST walk for 40004 steps (8 resets) in 3459 ms. (11 steps per ms) remains 2/2 properties
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-9606302323726749759.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-18239102100289854375.kers'
[2026-05-28 10:36:50] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-9606302323726749759.kers, --Pflows, --basisKERS=/tmp/petrispot-output-18239102100289854375.kers]
Culled 0 columns in 290 ms.
// Phase 1: matrix 55594 rows 297 cols 1622818 entries
[2026-05-28 10:36:52] [INFO ] Flatten gal took : 14931 ms
Finished phase 1 with 262 SingleSign rule and 3 generalized
[2026-05-28 10:36:52] [INFO ] Computed 32 invariants in 1428 ms
Computed 32 P flows in 1430 ms.
Exported basis to /tmp/petrispot-output-18239102100289854375.kers
Total runtime 1629 ms.
Excessive predecessor constraint size, skipping predecessor.
At refinement iteration 0 (INCLUDED_ONLY) 0/6 variables, 6/6 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/6 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 2 unsolved
Problem ErlangenMainframeV0-PT-1302-ReachabilityCardinality-2024-01 is UNSAT
FORMULA ErlangenMainframeV0-PT-1302-ReachabilityCardinality-2024-01 FALSE TECHNIQUES SMT_REFINEMENT
At refinement iteration 2 (OVERLAPS) 264/270 variables, 19/25 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/270 variables, 264/289 constraints. Problems are: Problem set: 1 solved, 1 unsolved
[2026-05-28 10:37:01] [INFO ] Flatten gal took : 9848 ms
[2026-05-28 10:37:03] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality12984282260736575592.gal : 1564 ms
[2026-05-28 10:37:03] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality13921295857481735002.prop : 1 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202604301425/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality12984282260736575592.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality13921295857481735002.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202604301425/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...330
SMT process timed out in 46969ms, After SMT, problems are : Problem set: 1 solved, 1 unsolved
Skipping Parikh replay, no witness traces provided.
Support contains 2 out of 297 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 297/297 places, 55594/55594 transitions.
Graph (trivial) has 233 edges and 297 vertex of which 6 / 297 are part of one of the 3 SCC in 38 ms
Free SCC test removed 3 places
Drop transitions (Empty/Sink Transition effects.) removed 6 transitions
Reduce isomorphic transitions removed 6 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 95 transitions
Trivial Post-agglo rules discarded 95 transitions
Performed 95 trivial Post agglomeration. Transition count delta: 95
Iterating post reduction 0 with 95 rules applied. Total rules applied 96 place count 294 transition count 55493
Reduce places removed 95 places and 0 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Iterating post reduction 1 with 96 rules applied. Total rules applied 192 place count 199 transition count 55492
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 2 with 1 rules applied. Total rules applied 193 place count 198 transition count 55492
Performed 3 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 3 Pre rules applied. Total rules applied 193 place count 198 transition count 55489
Deduced a syphon composed of 3 places in 111 ms
Reduce places removed 3 places and 0 transitions.
Iterating global reduction 3 with 6 rules applied. Total rules applied 199 place count 195 transition count 55489
Discarding 46 places :
Symmetric choice reduction at 3 with 46 rule applications. Total rules 245 place count 149 transition count 55443
Iterating global reduction 3 with 46 rules applied. Total rules applied 291 place count 149 transition count 55443
Performed 6 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 6 Pre rules applied. Total rules applied 291 place count 149 transition count 55437
Deduced a syphon composed of 6 places in 107 ms
Reduce places removed 6 places and 0 transitions.
Iterating global reduction 3 with 12 rules applied. Total rules applied 303 place count 143 transition count 55437
Discarding 14 places :
Symmetric choice reduction at 3 with 14 rule applications. Total rules 317 place count 129 transition count 37007
Ensure Unique test removed 12 places
Iterating global reduction 3 with 26 rules applied. Total rules applied 343 place count 117 transition count 37007
Discarding 14 places :
Symmetric choice reduction at 3 with 14 rule applications. Total rules 357 place count 103 transition count 147
Iterating global reduction 3 with 14 rules applied. Total rules applied 371 place count 103 transition count 147
Discarding 2 places :
Symmetric choice reduction at 3 with 2 rule applications. Total rules 373 place count 101 transition count 143
Iterating global reduction 3 with 2 rules applied. Total rules applied 375 place count 101 transition count 143
Performed 45 Post agglomeration using F-continuation condition.Transition count delta: 45
Deduced a syphon composed of 45 places in 0 ms
Reduce places removed 45 places and 0 transitions.
Iterating global reduction 3 with 90 rules applied. Total rules applied 465 place count 56 transition count 98
Discarding 3 places :
Symmetric choice reduction at 3 with 3 rule applications. Total rules 468 place count 53 transition count 75
Iterating global reduction 3 with 3 rules applied. Total rules applied 471 place count 53 transition count 75
Ensure Unique test removed 3 transitions
Reduce isomorphic transitions removed 3 transitions.
Iterating post reduction 3 with 3 rules applied. Total rules applied 474 place count 53 transition count 72
Performed 4 Post agglomeration using F-continuation condition.Transition count delta: -12
Deduced a syphon composed of 4 places in 0 ms
Reduce places removed 4 places and 0 transitions.
Iterating global reduction 4 with 8 rules applied. Total rules applied 482 place count 49 transition count 84
Drop transitions (Empty/Sink Transition effects.) removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 4 with 1 rules applied. Total rules applied 483 place count 49 transition count 83
Drop transitions (Redundant composition of simpler transitions.) removed 16 transitions
Redundant transition composition rules discarded 16 transitions
Iterating global reduction 5 with 16 rules applied. Total rules applied 499 place count 49 transition count 67
Free-agglomeration rule applied 18 times.
Iterating global reduction 5 with 18 rules applied. Total rules applied 517 place count 49 transition count 49
Reduce places removed 18 places and 0 transitions.
Drop transitions (Empty/Sink Transition effects.) removed 18 transitions
Reduce isomorphic transitions removed 18 transitions.
Graph (complete) has 146 edges and 31 vertex of which 29 are kept as prefixes of interest. Removing 2 places using SCC suffix rule.0 ms
Discarding 2 places :
Also discarding 0 output transitions
Iterating post reduction 5 with 37 rules applied. Total rules applied 554 place count 29 transition count 31
Ensure Unique test removed 9 places
Drop transitions (Empty/Sink Transition effects.) removed 3 transitions
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 5 transitions.
Iterating post reduction 6 with 14 rules applied. Total rules applied 568 place count 20 transition count 26
Ensure Unique test removed 1 places
Iterating post reduction 7 with 1 rules applied. Total rules applied 569 place count 19 transition count 26
Drop transitions (Redundant composition of simpler transitions.) removed 7 transitions
Redundant transition composition rules discarded 7 transitions
Iterating global reduction 8 with 7 rules applied. Total rules applied 576 place count 19 transition count 19
Free-agglomeration rule applied 1 times.
Iterating global reduction 8 with 1 rules applied. Total rules applied 577 place count 19 transition count 18
Reduce places removed 1 places and 0 transitions.
Drop transitions (Empty/Sink Transition effects.) removed 1 transitions
Ensure Unique test removed 3 transitions
Reduce isomorphic transitions removed 4 transitions.
Iterating post reduction 8 with 5 rules applied. Total rules applied 582 place count 18 transition count 14
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 9 with 1 rules applied. Total rules applied 583 place count 17 transition count 13
Reduce places removed 2 places and 0 transitions.
Iterating post reduction 9 with 2 rules applied. Total rules applied 585 place count 15 transition count 13
Applied a total of 585 rules in 38815 ms. Remains 15 /297 variables (removed 282) and now considering 13/55594 (removed 55581) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 38836 ms. Remains : 15/297 places, 13/55594 transitions.
RANDOM walk for 40000 steps (8 resets) in 377 ms. (105 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40002 steps (8 resets) in 139 ms. (285 steps per ms) remains 1/1 properties
Probably explored full state space saw : 32 states, properties seen :0
Probabilistic random walk after 116 steps, saw 32 distinct states, run finished after 15 ms. (steps per millisecond=7 ) properties seen :0
Explored full state space saw : 32 states, properties seen :0
Exhaustive walk after 116 steps, saw 32 distinct states, run finished after 2 ms. (steps per millisecond=58 ) properties seen :0
FORMULA ErlangenMainframeV0-PT-1302-ReachabilityCardinality-2024-10 FALSE TECHNIQUES TOPOLOGICAL EXHAUSTIVE_WALK
ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
All properties solved without resorting to model-checking.
Total runtime 108087 ms.

BK_STOP 1779964696827

--------------------
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
+ [[ ReachabilityCardinality = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution ReachabilityCardinality -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 ReachabilityCardinality -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="ErlangenMainframeV0-PT-1302"
export BK_EXAMINATION="ReachabilityCardinality"
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 ErlangenMainframeV0-PT-1302, examination is ReachabilityCardinality"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r114-smll-177955740700558"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/ErlangenMainframeV0-PT-1302.tgz
mv ErlangenMainframeV0-PT-1302 execution
cd execution
if [ "ReachabilityCardinality" = "ReachabilityDeadlock" ] || [ "ReachabilityCardinality" = "UpperBounds" ] || [ "ReachabilityCardinality" = "QuasiLiveness" ] || [ "ReachabilityCardinality" = "StableMarking" ] || [ "ReachabilityCardinality" = "Liveness" ] || [ "ReachabilityCardinality" = "OneSafe" ] || [ "ReachabilityCardinality" = "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 [ "ReachabilityCardinality" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "ReachabilityCardinality" != "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 "ReachabilityCardinality.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 '' ReachabilityCardinality.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "ReachabilityCardinality" = "ReachabilityDeadlock" ] || [ "ReachabilityCardinality" = "QuasiLiveness" ] || [ "ReachabilityCardinality" = "StableMarking" ] || [ "ReachabilityCardinality" = "Liveness" ] || [ "ReachabilityCardinality" = "OneSafe" ] ; then
echo "FORMULA_NAME ReachabilityCardinality"
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 ;