Execution Chart

We display below the execution chart for this examination (boot time has been removed).

Trace from the execution

Formatting '/data/fkordon/mcc2024-input.r044-smll-171620180800117.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2024-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 2-5568
Executing tool gold2023
Input is AutoFlight-PT-48a, examination is QuasiLiveness
Time confinement is 1800 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r044-smll-171620180800117
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 688K
-rw-r--r-- 1 mcc users 5.8K May 14 13:22 CTLCardinality.txt
-rw-r--r-- 1 mcc users 58K May 14 13:22 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.6K May 14 13:22 CTLFireability.txt
-rw-r--r-- 1 mcc users 51K May 14 13:22 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K May 18 16:42 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 3.5K Apr 22 14:28 LTLCardinality.txt
-rw-r--r-- 1 mcc users 23K Apr 22 14:28 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.1K May 19 07:12 LTLFireability.txt
-rw-r--r-- 1 mcc users 17K May 19 17:52 LTLFireability.xml
-rw-r--r-- 1 mcc users 7.1K Apr 13 02:03 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 67K Apr 13 02:03 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 8.9K Apr 13 01:13 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 77K Apr 13 01:13 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K Apr 22 14:28 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K Apr 22 14:28 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 May 18 16:42 equiv_col
-rw-r--r-- 1 mcc users 4 May 18 16:42 instance
-rw-r--r-- 1 mcc users 6 May 18 16:42 iscolored
-rw-r--r-- 1 mcc users 309K May 18 16:42 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 QuasiLiveness

=== Now, execution of the tool begins

BK_START 1716271926232

bash -c /home/mcc/BenchKit/BenchKit_head.sh 2> STDERR ; echo ; echo -n "BK_STOP " ; date -u +%s%3N
Invoking MCC driver with
BK_TOOL=gold2023
BK_EXAMINATION=QuasiLiveness
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=1800
BK_INPUT=AutoFlight-PT-48a
Not applying reductions.
Model is PT
QuasiLiveness PT
Running Version 202304061127
[2024-05-21 06:12:08] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, QuasiLiveness, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 1800]
[2024-05-21 06:12:08] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2024-05-21 06:12:09] [INFO ] Load time of PNML (sax parser for PT used): 233 ms
[2024-05-21 06:12:09] [INFO ] Transformed 1127 places.
[2024-05-21 06:12:09] [INFO ] Transformed 1113 transitions.
[2024-05-21 06:12:09] [INFO ] Found NUPN structural information;
[2024-05-21 06:12:09] [INFO ] Parsed PT model containing 1127 places and 1113 transitions and 3458 arcs in 368 ms.
Starting structural reductions in LIVENESS mode, iteration 0 : 1127/1127 places, 1113/1113 transitions.
Ensure Unique test removed 192 transitions
Reduce isomorphic transitions removed 192 transitions.
Drop transitions removed 220 transitions
Trivial Post-agglo rules discarded 220 transitions
Performed 220 trivial Post agglomeration. Transition count delta: 220
Iterating post reduction 0 with 412 rules applied. Total rules applied 412 place count 1127 transition count 701
Reduce places removed 220 places and 0 transitions.
Iterating post reduction 1 with 220 rules applied. Total rules applied 632 place count 907 transition count 701
Performed 68 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 68 Pre rules applied. Total rules applied 632 place count 907 transition count 633
Deduced a syphon composed of 68 places in 8 ms
Reduce places removed 68 places and 0 transitions.
Iterating global reduction 2 with 136 rules applied. Total rules applied 768 place count 839 transition count 633
Performed 72 Post agglomeration using F-continuation condition.Transition count delta: 72
Deduced a syphon composed of 72 places in 4 ms
Reduce places removed 72 places and 0 transitions.
Iterating global reduction 2 with 144 rules applied. Total rules applied 912 place count 767 transition count 561
Applied a total of 912 rules in 136 ms. Remains 767 /1127 variables (removed 360) and now considering 561/1113 (removed 552) transitions.
// Phase 1: matrix 561 rows 767 cols
[2024-05-21 06:12:09] [INFO ] Computed 258 invariants in 39 ms
[2024-05-21 06:12:10] [INFO ] Implicit Places using invariants in 1267 ms returned []
[2024-05-21 06:12:10] [INFO ] Invariant cache hit.
[2024-05-21 06:12:11] [INFO ] State equation strengthened by 312 read => feed constraints.
[2024-05-21 06:12:23] [INFO ] Implicit Places using invariants and state equation in 12944 ms returned [5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100, 105, 110, 115, 120, 125, 130, 135, 140, 145, 150, 155, 160, 165, 170, 175, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191, 192, 193, 194, 195, 196, 197, 198, 199, 200, 201, 202, 203, 204, 205, 206, 207, 208, 209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221, 222, 223, 224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239, 240, 241, 242, 243, 244, 245, 246, 247, 248, 249, 250, 251, 252, 253, 254, 255, 256, 257, 258, 259, 260, 261, 262, 263, 264, 265, 266, 267, 268, 269, 270, 271, 272, 273, 274, 275, 276, 350, 388, 462, 500, 506, 512, 518, 524, 530, 536, 542, 548, 554, 560, 566, 572, 578, 584, 590, 596, 602, 608, 614, 620, 626, 632, 638, 644, 648, 652, 656, 660, 664, 668, 672, 676, 680, 684, 688, 692, 698, 704, 710, 716, 722, 728, 734, 740, 746, 752, 758, 764]
Discarding 184 places :
Implicit Place search using SMT with State Equation took 14273 ms to find 184 implicit places.
Starting structural reductions in LIVENESS mode, iteration 1 : 583/1127 places, 561/1113 transitions.
Drop transitions removed 188 transitions
Trivial Post-agglo rules discarded 188 transitions
Performed 188 trivial Post agglomeration. Transition count delta: 188
Iterating post reduction 0 with 188 rules applied. Total rules applied 188 place count 583 transition count 373
Reduce places removed 188 places and 0 transitions.
Iterating post reduction 1 with 188 rules applied. Total rules applied 376 place count 395 transition count 373
Performed 52 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 52 Pre rules applied. Total rules applied 376 place count 395 transition count 321
Deduced a syphon composed of 52 places in 1 ms
Reduce places removed 52 places and 0 transitions.
Iterating global reduction 2 with 104 rules applied. Total rules applied 480 place count 343 transition count 321
Applied a total of 480 rules in 27 ms. Remains 343 /583 variables (removed 240) and now considering 321/561 (removed 240) transitions.
// Phase 1: matrix 321 rows 343 cols
[2024-05-21 06:12:23] [INFO ] Computed 74 invariants in 4 ms
[2024-05-21 06:12:24] [INFO ] Implicit Places using invariants in 423 ms returned [342]
Discarding 1 places :
Implicit Place search using SMT only with invariants took 424 ms to find 1 implicit places.
Starting structural reductions in LIVENESS mode, iteration 2 : 342/1127 places, 321/1113 transitions.
Graph (trivial) has 176 edges and 342 vertex of which 13 / 342 are part of one of the 1 SCC in 4 ms
Free SCC test removed 12 places
Ensure Unique test removed 23 transitions
Reduce isomorphic transitions removed 23 transitions.
Performed 40 Post agglomeration using F-continuation condition.Transition count delta: 40
Deduced a syphon composed of 40 places in 1 ms
Reduce places removed 40 places and 0 transitions.
Iterating global reduction 0 with 80 rules applied. Total rules applied 81 place count 290 transition count 258
Applied a total of 81 rules in 18 ms. Remains 290 /342 variables (removed 52) and now considering 258/321 (removed 63) transitions.
// Phase 1: matrix 258 rows 290 cols
[2024-05-21 06:12:24] [INFO ] Computed 73 invariants in 3 ms
[2024-05-21 06:12:24] [INFO ] Implicit Places using invariants in 358 ms returned []
[2024-05-21 06:12:24] [INFO ] Invariant cache hit.
[2024-05-21 06:12:24] [INFO ] State equation strengthened by 73 read => feed constraints.
[2024-05-21 06:12:25] [INFO ] Implicit Places using invariants and state equation in 1019 ms returned []
Implicit Place search using SMT with State Equation took 1386 ms to find 0 implicit places.
Starting structural reductions in LIVENESS mode, iteration 3 : 290/1127 places, 258/1113 transitions.
Finished structural reductions in LIVENESS mode , in 3 iterations and 16267 ms. Remains : 290/1127 places, 258/1113 transitions.
Discarding 112 transitions out of 258. Remains 146
Initial state reduction rules removed 1 formulas.
[2024-05-21 06:12:26] [INFO ] Flatten gal took : 230 ms
[2024-05-21 06:12:26] [INFO ] Flatten gal took : 92 ms
[2024-05-21 06:12:26] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality9115686457249034518.gal : 56 ms
[2024-05-21 06:12:26] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality1777938755033255246.prop : 3 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202304061127/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality9115686457249034518.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality1777938755033255246.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202304061127/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...328
Loading property file /tmp/ReachabilityCardinality1777938755033255246.prop.
Incomplete random walk after 10000 steps, including 123 resets, run finished after 1222 ms. (steps per millisecond=8 ) properties (out of 145) seen :118
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 7 ms. (steps per millisecond=143 ) properties (out of 27) seen :1
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 6 ms. (steps per millisecond=166 ) properties (out of 26) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 12 ms. (steps per millisecond=83 ) properties (out of 26) seen :0
Reachability property qltransition_141 is true.
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 5 ms. (steps per millisecond=200 ) properties (out of 26) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 5 ms. (steps per millisecond=200 ) properties (out of 26) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 5 ms. (steps per millisecond=200 ) properties (out of 26) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 5 ms. (steps per millisecond=200 ) properties (out of 26) seen :0
SDD proceeding with computation,144 properties remain. new max is 2
SDD size :1 after 9
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 6 ms. (steps per millisecond=166 ) properties (out of 26) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 5 ms. (steps per millisecond=200 ) properties (out of 26) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 5 ms. (steps per millisecond=200 ) properties (out of 26) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 5 ms. (steps per millisecond=200 ) properties (out of 26) seen :1
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 6 ms. (steps per millisecond=166 ) properties (out of 25) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 5 ms. (steps per millisecond=200 ) properties (out of 25) seen :1
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 5 ms. (steps per millisecond=200 ) properties (out of 24) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 4 ms. (steps per millisecond=250 ) properties (out of 24) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 5 ms. (steps per millisecond=200 ) properties (out of 24) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 5 ms. (steps per millisecond=200 ) properties (out of 24) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 5 ms. (steps per millisecond=200 ) properties (out of 24) seen :1
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 4 ms. (steps per millisecond=250 ) properties (out of 23) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 5 ms. (steps per millisecond=200 ) properties (out of 23) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 4 ms. (steps per millisecond=250 ) properties (out of 23) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 5 ms. (steps per millisecond=200 ) properties (out of 23) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 4 ms. (steps per millisecond=250 ) properties (out of 23) seen :0
SDD proceeding with computation,144 properties remain. new max is 4
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 5 ms. (steps per millisecond=200 ) properties (out of 23) seen :1
SDD size :9 after 65
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 4 ms. (steps per millisecond=250 ) properties (out of 22) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 4 ms. (steps per millisecond=250 ) properties (out of 22) seen :0
Running SMT prover for 22 properties.
[2024-05-21 06:12:26] [INFO ] Invariant cache hit.
[2024-05-21 06:12:27] [INFO ] [Real]Absence check using 73 positive place invariants in 28 ms returned sat
[2024-05-21 06:12:27] [INFO ] After 600ms SMT Verify possible using state equation in real domain returned unsat :0 sat :11 real:11
[2024-05-21 06:12:27] [INFO ] State equation strengthened by 73 read => feed constraints.
[2024-05-21 06:12:28] [INFO ] After 320ms SMT Verify possible using 73 Read/Feed constraints in real domain returned unsat :0 sat :0 real:22
[2024-05-21 06:12:28] [INFO ] After 1453ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:22
SDD proceeding with computation,144 properties remain. new max is 8
SDD size :65 after 2049
[2024-05-21 06:12:28] [INFO ] [Nat]Absence check using 73 positive place invariants in 20 ms returned sat
[2024-05-21 06:12:29] [INFO ] After 529ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :22
[2024-05-21 06:12:29] [INFO ] After 523ms SMT Verify possible using 73 Read/Feed constraints in natural domain returned unsat :0 sat :22
[2024-05-21 06:12:30] [INFO ] After 1225ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :22
Attempting to minimize the solution found.
Minimization took 503 ms.
[2024-05-21 06:12:30] [INFO ] After 2700ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :22
Finished Parikh walk after 167 steps, including 2 resets, run visited all 1 properties in 3 ms. (steps per millisecond=55 )
Parikh walk visited 22 properties in 4547 ms.
ITS runner failed with exception null
java.lang.InterruptedException
at java.base/java.lang.Object.wait(Native Method)
at java.base/java.lang.Thread.join(Thread.java:1304)
at java.base/java.lang.Thread.join(Thread.java:1372)
at fr.lip6.move.gal.application.runner.AbstractRunner.join(AbstractRunner.java:27)
at fr.lip6.move.gal.application.runner.its.ITSRunner.join(ITSRunner.java:177)
at fr.lip6.move.gal.application.solver.global.GlobalPropertySolver.verifyWithSDD(GlobalPropertySolver.java:675)
at fr.lip6.move.gal.application.solver.ReachabilitySolver.lambda$2(ReachabilitySolver.java:63)
at java.base/java.lang.Thread.run(Thread.java:833)
Able to resolve query QuasiLiveness after proving 146 properties.
FORMULA QuasiLiveness TRUE TECHNIQUES RANDOM_WALK PARIKH_WALK BESTFIRST_WALK TOPOLOGICAL INITIAL_STATE
Total runtime 26834 ms.

BK_STOP 1716271956883

--------------------
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
+ [[ QuasiLiveness = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution QuasiLiveness -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
+ export PYTHONPATH=/home/mcc/BenchKit/itstools/pylibs
+ PYTHONPATH=/home/mcc/BenchKit/itstools/pylibs
+ export LD_LIBRARY_PATH=/home/mcc/BenchKit/itstools/pylibs:
+ LD_LIBRARY_PATH=/home/mcc/BenchKit/itstools/pylibs:
++ sed s/.jar//
++ perl -pe 's/.*\.//g'
++ ls /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202304061127.jar
+ VERSION=202304061127
+ echo 'Running Version 202304061127'
+ /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/its-tools -pnfolder /home/mcc/execution -examination QuasiLiveness -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="AutoFlight-PT-48a"
export BK_EXAMINATION="QuasiLiveness"
export BK_TOOL="gold2023"
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 2-5568"
echo " Executing tool gold2023"
echo " Input is AutoFlight-PT-48a, examination is QuasiLiveness"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r044-smll-171620180800117"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/AutoFlight-PT-48a.tgz
mv AutoFlight-PT-48a execution
cd execution
if [ "QuasiLiveness" = "ReachabilityDeadlock" ] || [ "QuasiLiveness" = "UpperBounds" ] || [ "QuasiLiveness" = "QuasiLiveness" ] || [ "QuasiLiveness" = "StableMarking" ] || [ "QuasiLiveness" = "Liveness" ] || [ "QuasiLiveness" = "OneSafe" ] || [ "QuasiLiveness" = "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 [ "QuasiLiveness" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "QuasiLiveness" != "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 "QuasiLiveness.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property QuasiLiveness.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "QuasiLiveness.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 '' QuasiLiveness.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "QuasiLiveness" = "ReachabilityDeadlock" ] || [ "QuasiLiveness" = "QuasiLiveness" ] || [ "QuasiLiveness" = "StableMarking" ] || [ "QuasiLiveness" = "Liveness" ] || [ "QuasiLiveness" = "OneSafe" ] ; then
echo "FORMULA_NAME QuasiLiveness"
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 ;