Execution Chart

Sorry, for this execution, no execution chart could be reported.

Trace from the execution

Formatting '/data/fkordon/mcc2025-input.r035-smll-174853818900259.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2025-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 2-5832
Executing tool itstools
Input is CircularTrains-PT-096, examination is Liveness
Time confinement is 1800 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r035-smll-174853818900259
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 624K
-rw-r--r-- 1 mcc users 8.5K May 29 14:47 CTLCardinality.txt
-rw-r--r-- 1 mcc users 91K May 29 14:47 CTLCardinality.xml
-rw-r--r-- 1 mcc users 6.4K May 29 14:47 CTLFireability.txt
-rw-r--r-- 1 mcc users 55K May 29 14:47 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K May 29 14:32 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 4.0K May 29 14:47 LTLCardinality.txt
-rw-r--r-- 1 mcc users 28K May 29 14:47 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.5K May 29 14:47 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K May 29 14:47 LTLFireability.xml
-rw-r--r-- 1 mcc users 17K May 29 14:47 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 182K May 29 14:47 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 11K May 29 14:47 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 77K May 29 14:47 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.8K May 29 14:47 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.8K May 29 14:47 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 May 29 14:32 equiv_col
-rw-r--r-- 1 mcc users 4 May 29 14:32 instance
-rw-r--r-- 1 mcc users 6 May 29 14:32 iscolored
-rw-r--r-- 1 mcc users 73K May 29 14:32 model.pnml

--------------------
content from stdout:

=== Data for post analysis generated by BenchKit (invocation template)

The expected result is a vector of booleans
BOOL_VECTOR

FORMULA_NAME Liveness

=== Now, execution of the tool begins

BK_START 1748548098884

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=Liveness
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=1800
BK_INPUT=CircularTrains-PT-096
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
Liveness PT
Running Version 202505121319
[2025-05-29 19:48:21] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, Liveness, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 1800]
[2025-05-29 19:48:21] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2025-05-29 19:48:21] [INFO ] Load time of PNML (sax parser for PT used): 105 ms
[2025-05-29 19:48:21] [INFO ] Transformed 192 places.
[2025-05-29 19:48:21] [INFO ] Transformed 96 transitions.
[2025-05-29 19:48:21] [INFO ] Parsed PT model containing 192 places and 96 transitions and 384 arcs in 272 ms.
Built sparse matrix representations for Structural reductions in 8 ms.16356KB memory used
Starting structural reductions in DEADLOCK mode, iteration 0 : 192/192 places, 96/96 transitions.
Computed a total of 0 stabilizing places and 0 stable transitions
Computed a total of 0 stabilizing places and 0 stable transitions
Computed a total of 0 stabilizing places and 0 stable transitions
Applied a total of 0 rules in 26 ms. Remains 192 /192 variables (removed 0) and now considering 96/96 (removed 0) transitions.
Finished structural reductions in DEADLOCK mode , in 1 iterations and 46 ms. Remains : 192/192 places, 96/96 transitions.
Starting structural reductions in DEADLOCK mode, iteration 0 : 192/192 places, 96/96 transitions.
Computed a total of 0 stabilizing places and 0 stable transitions
Computed a total of 0 stabilizing places and 0 stable transitions
Computed a total of 0 stabilizing places and 0 stable transitions
Applied a total of 0 rules in 9 ms. Remains 192 /192 variables (removed 0) and now considering 96/96 (removed 0) transitions.
// Phase 1: matrix 96 rows 192 cols
[2025-05-29 19:48:21] [INFO ] Computed 97 invariants in 31 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-29 19:48:22] [INFO ] Implicit Places using invariants in 486 ms returned []
[2025-05-29 19:48:22] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-29 19:48:22] [INFO ] Implicit Places using invariants and state equation in 364 ms returned []
Implicit Place search using SMT with State Equation took 911 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-05-29 19:48:22] [INFO ] Redundant transitions in 3 ms returned []
Running 64 sub problems to find dead transitions.
[2025-05-29 19:48:22] [INFO ] Invariant cache hit.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/128 variables, 17/17 constraints. Problems are: Problem set: 0 solved, 64 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/128 variables, 0/17 constraints. Problems are: Problem set: 0 solved, 64 unsolved
At refinement iteration 2 (OVERLAPS) 46/174 variables, 52/69 constraints. Problems are: Problem set: 0 solved, 64 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/174 variables, 5/74 constraints. Problems are: Problem set: 0 solved, 64 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/174 variables, 0/74 constraints. Problems are: Problem set: 0 solved, 64 unsolved
At refinement iteration 5 (OVERLAPS) 18/192 variables, 23/97 constraints. Problems are: Problem set: 0 solved, 64 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/192 variables, 0/97 constraints. Problems are: Problem set: 0 solved, 64 unsolved
At refinement iteration 7 (OVERLAPS) 96/288 variables, 192/289 constraints. Problems are: Problem set: 0 solved, 64 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/288 variables, 0/289 constraints. Problems are: Problem set: 0 solved, 64 unsolved
At refinement iteration 9 (OVERLAPS) 0/288 variables, 0/289 constraints. Problems are: Problem set: 0 solved, 64 unsolved
No progress, stopping.
After SMT solving in domain Real declared 288/288 variables, and 289 constraints, problems are : Problem set: 0 solved, 64 unsolved in 7106 ms.
Refiners :[Positive P Invariants (semi-flows): 52/52 constraints, Generalized P Invariants (flows): 45/45 constraints, State Equation: 192/192 constraints, PredecessorRefiner: 64/64 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 64 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/128 variables, 17/17 constraints. Problems are: Problem set: 0 solved, 64 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/128 variables, 0/17 constraints. Problems are: Problem set: 0 solved, 64 unsolved
At refinement iteration 2 (OVERLAPS) 46/174 variables, 52/69 constraints. Problems are: Problem set: 0 solved, 64 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/174 variables, 5/74 constraints. Problems are: Problem set: 0 solved, 64 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/174 variables, 0/74 constraints. Problems are: Problem set: 0 solved, 64 unsolved
At refinement iteration 5 (OVERLAPS) 18/192 variables, 23/97 constraints. Problems are: Problem set: 0 solved, 64 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/192 variables, 0/97 constraints. Problems are: Problem set: 0 solved, 64 unsolved
At refinement iteration 7 (OVERLAPS) 96/288 variables, 192/289 constraints. Problems are: Problem set: 0 solved, 64 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/288 variables, 64/353 constraints. Problems are: Problem set: 0 solved, 64 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/288 variables, 0/353 constraints. Problems are: Problem set: 0 solved, 64 unsolved
At refinement iteration 10 (OVERLAPS) 0/288 variables, 0/353 constraints. Problems are: Problem set: 0 solved, 64 unsolved
No progress, stopping.
After SMT solving in domain Int declared 288/288 variables, and 353 constraints, problems are : Problem set: 0 solved, 64 unsolved in 8268 ms.
Refiners :[Positive P Invariants (semi-flows): 52/52 constraints, Generalized P Invariants (flows): 45/45 constraints, State Equation: 192/192 constraints, PredecessorRefiner: 64/64 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 15470ms problems are : Problem set: 0 solved, 64 unsolved
Search for dead transitions found 0 dead transitions in 15485ms
Finished structural reductions in DEADLOCK mode , in 1 iterations and 16437 ms. Remains : 192/192 places, 96/96 transitions.
Random walk for 1250000 steps, including 0 resets, run took 5849 ms (no deadlock found). (steps per millisecond=213 )
Random directed walk for 1250009 steps, including 0 resets, run took 4437 ms (no deadlock found). (steps per millisecond=281 )
[2025-05-29 19:48:48] [INFO ] Invariant cache hit.
Starting Z3 with timeout 300.0 s and query timeout 30000.0 ms
[2025-05-29 19:48:48] [INFO ] [Real]Absence check using 52 positive place invariants in 25 ms returned sat
[2025-05-29 19:48:48] [INFO ] [Real]Absence check using 52 positive and 45 generalized place invariants in 155 ms returned unsat
Starting structural reductions in LIVENESS mode, iteration 0 : 192/192 places, 96/96 transitions.
Applied a total of 0 rules in 5 ms. Remains 192 /192 variables (removed 0) and now considering 96/96 (removed 0) transitions.
[2025-05-29 19:48:48] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-29 19:48:48] [INFO ] Implicit Places using invariants in 264 ms returned [1, 4, 5, 8, 10, 14, 20, 27, 29, 37, 39, 49, 109, 115, 116, 123, 125, 144, 155, 162, 164, 166, 168, 174, 177, 178, 182, 183, 185, 186, 187, 189]
Discarding 32 places :
Implicit Place search using SMT only with invariants took 269 ms to find 32 implicit places.
Starting structural reductions in LIVENESS mode, iteration 1 : 160/192 places, 96/96 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 32 transitions
Trivial Post-agglo rules discarded 32 transitions
Performed 32 trivial Post agglomeration. Transition count delta: 32
Iterating post reduction 0 with 32 rules applied. Total rules applied 32 place count 160 transition count 64
Reduce places removed 32 places and 0 transitions.
Iterating post reduction 1 with 32 rules applied. Total rules applied 64 place count 128 transition count 64
Applied a total of 64 rules in 13 ms. Remains 128 /160 variables (removed 32) and now considering 64/96 (removed 32) transitions.
// Phase 1: matrix 64 rows 128 cols
[2025-05-29 19:48:48] [INFO ] Computed 65 invariants in 5 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-29 19:48:49] [INFO ] Implicit Places using invariants in 273 ms returned []
[2025-05-29 19:48:49] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-29 19:48:49] [INFO ] Implicit Places using invariants and state equation in 290 ms returned []
Implicit Place search using SMT with State Equation took 567 ms to find 0 implicit places.
Starting structural reductions in LIVENESS mode, iteration 2 : 128/192 places, 64/96 transitions.
Finished structural reductions in LIVENESS mode , in 2 iterations and 854 ms. Remains : 128/192 places, 64/96 transitions.
Initial state reduction rules removed 32 formulas.
RANDOM walk for 322 steps (0 resets) in 97 ms. (3 steps per ms) remains 0/32 properties
[2025-05-29 19:48:49] [INFO ] Flatten gal took : 76 ms
[2025-05-29 19:48:49] [INFO ] Flatten gal took : 24 ms
[2025-05-29 19:48:49] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality14611965211302245728.gal : 14 ms
[2025-05-29 19:48:49] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality10261852644585449448.prop : 0 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality14611965211302245728.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality10261852644585449448.prop' '--nowitness' '--gen-order' 'FOLLOW'

ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
Able to resolve query QuasiLiveness after proving 64 properties.
Starting structural reductions in LIVENESS mode, iteration 0 : 192/192 places, 96/96 transitions.
Applied a total of 0 rules in 5 ms. Remains 192 /192 variables (removed 0) and now considering 96/96 (removed 0) transitions.
// Phase 1: matrix 96 rows 192 cols
[2025-05-29 19:48:49] [INFO ] Computed 97 invariants in 5 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-29 19:48:50] [INFO ] Implicit Places using invariants in 555 ms returned [1, 4, 5, 8, 10, 14, 20, 27, 29, 37, 39, 49, 109, 115, 116, 123, 125, 144, 155, 162, 164, 166, 168, 174, 177, 178, 182, 183, 185, 186, 187, 189]
Discarding 32 places :
Implicit Place search using SMT only with invariants took 558 ms to find 32 implicit places.
Starting structural reductions in LIVENESS mode, iteration 1 : 160/192 places, 96/96 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 32 transitions
Trivial Post-agglo rules discarded 32 transitions
Performed 32 trivial Post agglomeration. Transition count delta: 32
Iterating post reduction 0 with 32 rules applied. Total rules applied 32 place count 160 transition count 64
Reduce places removed 32 places and 0 transitions.
Iterating post reduction 1 with 32 rules applied. Total rules applied 64 place count 128 transition count 64
Applied a total of 64 rules in 6 ms. Remains 128 /160 variables (removed 32) and now considering 64/96 (removed 32) transitions.
// Phase 1: matrix 64 rows 128 cols
[2025-05-29 19:48:50] [INFO ] Computed 65 invariants in 3 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-29 19:48:50] [INFO ] Implicit Places using invariants in 171 ms returned []
[2025-05-29 19:48:50] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-29 19:48:50] [INFO ] Implicit Places using invariants and state equation in 291 ms returned []
Implicit Place search using SMT with State Equation took 464 ms to find 0 implicit places.
Starting structural reductions in LIVENESS mode, iteration 2 : 128/192 places, 64/96 transitions.
Finished structural reductions in LIVENESS mode , in 2 iterations and 1034 ms. Remains : 128/192 places, 64/96 transitions.
Net is quasi-live, checking if it is reversible to establish liveness.
Net is conservative; using simplified expression for initial state.
[2025-05-29 19:48:51] [INFO ] Flatten gal took : 13 ms
[2025-05-29 19:48:51] [INFO ] Flatten gal took : 11 ms
[2025-05-29 19:48:51] [INFO ] Time to serialize gal into /tmp/CTLFireability7336759431246418363.gal : 5 ms
[2025-05-29 19:48:51] [INFO ] Time to serialize properties into /tmp/CTLFireability1948073120465741871.ctl : 2 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-ctl-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/CTLFireability7336759431246418363.gal' '-t' 'CGAL' '-ctl' '/tmp/CTLFireability1948073120465741871.ctl' '--gen-order' 'FOLLOW'

its-ctl command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/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,1.83262e+18,0.765675,19632,2,3201,5,94597,6,0,579,98753,0


Converting to forward existential form...Done !
original formula: AG(EF((((((((Section_78==1)&&(F76==1))&&((F37==1)&&(Section_57==1)))&&(((F7==1)&&(Section_39==1))&&((Section_9==1)&&(F55==1))))&&((((F28=...1008
=> equivalent forward existential formula: [(FwdU(Init,TRUE) * !(E(TRUE U (((((((Section_78==1)&&(F76==1))&&((F37==1)&&(Section_57==1)))&&(((F7==1)&&(Secti...1068
Reverse transition relation is exact ! Faster fixpoint algorithm enabled.
(forward)formula 0,1,2.11028,48200,1,0,5,300084,14,0,2815,107447,5
Formula is TRUE !

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

ITS tools runner thread asked to quit. Dying gracefully.
Able to resolve query Liveness after proving 1 properties.
FORMULA Liveness TRUE TECHNIQUES RANDOM_WALK DECISION_DIAGRAMS TOPOLOGICAL QUASI_LIVE_REVERSIBLE INITIAL_STATE
Total runtime 32039 ms.

BK_STOP 1748548133243

--------------------
content from stderr:

+ export BINDIR=/home/mcc/BenchKit/bin//../itstools/bin//../
+ BINDIR=/home/mcc/BenchKit/bin//../itstools/bin//../
++ pwd
+ export MODEL=/home/mcc/execution
+ MODEL=/home/mcc/execution
+ [[ Liveness = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution Liveness -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 1800
+ ulimit -s 65536
+ [[ -z '' ]]
+ export LTSMIN_MEM_SIZE=8589934592
+ LTSMIN_MEM_SIZE=8589934592
++ sed s/.jar//
++ perl -pe 's/.*\.//g'
++ ls /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202505121319.jar
+ VERSION=202505121319
+ echo 'Running Version 202505121319'
+ /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/its-tools -pnfolder /home/mcc/execution -examination Liveness -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 1800

Sequence of Actions to be Executed by the VM

This is useful if one wants to reexecute the tool in the VM from the submitted image disk.

set -x
# this is for BenchKit: configuration of major elements for the test
export BK_INPUT="CircularTrains-PT-096"
export BK_EXAMINATION="Liveness"
export BK_TOOL="itstools"
export BK_RESULT_DIR="/tmp/BK_RESULTS/OUTPUTS"
export BK_TIME_CONFINEMENT="1800"
export BK_MEMORY_CONFINEMENT="16384"
export BK_BIN_PATH="/home/mcc/BenchKit/bin/"

# this is specific to your benchmark or test

export BIN_DIR="$HOME/BenchKit/bin"

# remove the execution directoty if it exists (to avoid increse of .vmdk images)
if [ -d execution ] ; then
rm -rf execution
fi

# this is for BenchKit: explicit launching of the test
echo "====================================================================="
echo " Generated by BenchKit 2-5832"
echo " Executing tool itstools"
echo " Input is CircularTrains-PT-096, examination is Liveness"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r035-smll-174853818900259"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/CircularTrains-PT-096.tgz
mv CircularTrains-PT-096 execution
cd execution
if [ "Liveness" = "ReachabilityDeadlock" ] || [ "Liveness" = "UpperBounds" ] || [ "Liveness" = "QuasiLiveness" ] || [ "Liveness" = "StableMarking" ] || [ "Liveness" = "Liveness" ] || [ "Liveness" = "OneSafe" ] || [ "Liveness" = "StateSpace" ]; then
rm -f GenericPropertiesVerdict.xml
fi
pwd
ls -lh

echo
echo "--------------------"
echo "content from stdout:"
echo
echo "=== Data for post analysis generated by BenchKit (invocation template)"
echo
if [ "Liveness" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "Liveness" != "StateSpace" ] ; then
echo "The expected result is a vector of booleans"
echo BOOL_VECTOR
else
echo "no data necessary for post analysis"
fi
echo
if [ -f "Liveness.xml" ] ; then # for cunf (txt files deleted;-)
echo echo "here is the order used to build the result vector(from xml file)"
for x in $(grep '' Liveness.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "Liveness" = "ReachabilityDeadlock" ] || [ "Liveness" = "QuasiLiveness" ] || [ "Liveness" = "StableMarking" ] || [ "Liveness" = "Liveness" ] || [ "Liveness" = "OneSafe" ] ; then
echo "FORMULA_NAME Liveness"
fi
echo
echo "=== Now, execution of the tool begins"
echo
echo -n "BK_START "
date -u +%s%3N
echo
timeout -s 9 $BK_TIME_CONFINEMENT bash -c "/home/mcc/BenchKit/BenchKit_head.sh 2> STDERR ; echo ; echo -n \"BK_STOP \" ; date -u +%s%3N"
if [ $? -eq 137 ] ; then
echo
echo "BK_TIME_CONFINEMENT_REACHED"
fi
echo
echo "--------------------"
echo "content from stderr:"
echo
cat STDERR ;