About the Execution of ITS-Tools for QuasiCertifProtocol-PT-22
| Execution Summary | |||||
| Max Memory Used (MB) |
Time wait (ms) | CPU Usage (ms) | I/O Wait (ms) | Computed Result | Execution Status |
| 1183.308 | 54996.00 | 120277.00 | 1470.50 | TFFFTFFFTTTFTTFT | normal |
Execution Chart
We display below the execution chart for this examination (boot time has been removed).
Trace from the execution
Formatting '/data/fkordon/mcc2023-input.r293-tall-167873946000895.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2023-input.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 2-5348
Executing tool itstools
Input is QuasiCertifProtocol-PT-22, examination is ReachabilityFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r293-tall-167873946000895
=====================================================================
--------------------
preparation of the directory to be used:
/home/mcc/execution
total 2.2M
-rw-r--r-- 1 mcc users 33K Feb 26 01:29 CTLCardinality.txt
-rw-r--r-- 1 mcc users 225K Feb 26 01:29 CTLCardinality.xml
-rw-r--r-- 1 mcc users 15K Feb 26 01:27 CTLFireability.txt
-rw-r--r-- 1 mcc users 100K Feb 26 01:27 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Jan 29 11:40 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.8K Jan 29 11:40 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 49K Feb 25 16:37 LTLCardinality.txt
-rw-r--r-- 1 mcc users 214K Feb 25 16:37 LTLCardinality.xml
-rw-r--r-- 1 mcc users 6.6K Feb 25 16:37 LTLFireability.txt
-rw-r--r-- 1 mcc users 31K Feb 25 16:37 LTLFireability.xml
-rw-r--r-- 1 mcc users 102K Feb 26 01:36 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 667K Feb 26 01:36 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 20K Feb 26 01:31 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 117K Feb 26 01:31 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 8.0K Feb 25 16:37 UpperBounds.txt
-rw-r--r-- 1 mcc users 24K Feb 25 16:37 UpperBounds.xml
-rw-r--r-- 1 mcc users 5 Mar 5 18:23 equiv_col
-rw-r--r-- 1 mcc users 3 Mar 5 18:23 instance
-rw-r--r-- 1 mcc users 6 Mar 5 18:23 iscolored
-rw-r--r-- 1 mcc users 503K Mar 5 18:23 model.pnml
--------------------
content from stdout:
=== Data for post analysis generated by BenchKit (invocation template)
The expected result is a vector of booleans
BOOL_VECTOR
here is the order used to build the result vector(from text file)
FORMULA_NAME QuasiCertifProtocol-PT-22-ReachabilityFireability-00
FORMULA_NAME QuasiCertifProtocol-PT-22-ReachabilityFireability-01
FORMULA_NAME QuasiCertifProtocol-PT-22-ReachabilityFireability-02
FORMULA_NAME QuasiCertifProtocol-PT-22-ReachabilityFireability-03
FORMULA_NAME QuasiCertifProtocol-PT-22-ReachabilityFireability-04
FORMULA_NAME QuasiCertifProtocol-PT-22-ReachabilityFireability-05
FORMULA_NAME QuasiCertifProtocol-PT-22-ReachabilityFireability-06
FORMULA_NAME QuasiCertifProtocol-PT-22-ReachabilityFireability-07
FORMULA_NAME QuasiCertifProtocol-PT-22-ReachabilityFireability-08
FORMULA_NAME QuasiCertifProtocol-PT-22-ReachabilityFireability-09
FORMULA_NAME QuasiCertifProtocol-PT-22-ReachabilityFireability-10
FORMULA_NAME QuasiCertifProtocol-PT-22-ReachabilityFireability-11
FORMULA_NAME QuasiCertifProtocol-PT-22-ReachabilityFireability-12
FORMULA_NAME QuasiCertifProtocol-PT-22-ReachabilityFireability-13
FORMULA_NAME QuasiCertifProtocol-PT-22-ReachabilityFireability-14
FORMULA_NAME QuasiCertifProtocol-PT-22-ReachabilityFireability-15
=== Now, execution of the tool begins
BK_START 1678997264593
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=itstools
BK_EXAMINATION=ReachabilityFireability
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=QuasiCertifProtocol-PT-22
Not applying reductions.
Model is PT
ReachabilityFireability PT
Running Version 202303021504
[2023-03-16 20:07:46] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, ReachabilityFireability, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2023-03-16 20:07:46] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2023-03-16 20:07:46] [INFO ] Load time of PNML (sax parser for PT used): 89 ms
[2023-03-16 20:07:46] [INFO ] Transformed 1966 places.
[2023-03-16 20:07:46] [INFO ] Transformed 356 transitions.
[2023-03-16 20:07:46] [INFO ] Parsed PT model containing 1966 places and 356 transitions and 4323 arcs in 160 ms.
Parsed 16 properties from file /home/mcc/execution/ReachabilityFireability.xml in 14 ms.
Working with output stream class java.io.PrintStream
[2023-03-16 20:07:47] [INFO ] Flatten gal took : 301 ms
Incomplete random walk after 10000 steps, including 371 resets, run finished after 757 ms. (steps per millisecond=13 ) properties (out of 16) seen :1
FORMULA QuasiCertifProtocol-PT-22-ReachabilityFireability-05 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
[2023-03-16 20:07:47] [INFO ] Flatten gal took : 170 ms
Incomplete Best-First random walk after 1001 steps, including 3 resets, run finished after 47 ms. (steps per millisecond=21 ) properties (out of 15) seen :0
Incomplete Best-First random walk after 1001 steps, including 3 resets, run finished after 14 ms. (steps per millisecond=71 ) properties (out of 15) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 80 ms. (steps per millisecond=12 ) properties (out of 15) seen :0
Incomplete Best-First random walk after 1000 steps, including 3 resets, run finished after 41 ms. (steps per millisecond=24 ) properties (out of 15) seen :0
Incomplete Best-First random walk after 1000 steps, including 3 resets, run finished after 15 ms. (steps per millisecond=66 ) properties (out of 15) seen :0
[2023-03-16 20:07:48] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality3218118999540416875.gal : 63 ms
[2023-03-16 20:07:48] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality887150316299682016.prop : 7 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202303021504/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality3218118999540416875.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality887150316299682016.prop' '--nowitness' '--gen-order' 'FOLLOW'
Incomplete Best-First random walk after 1000 steps, including 3 resets, run finished after 145 ms. (steps per millisecond=6 ) properties (out of 15) seen :0
Incomplete Best-First random walk after 1000 steps, including 3 resets, run finished after 8 ms. (steps per millisecond=125 ) properties (out of 15) seen :0
Incomplete Best-First random walk after 1000 steps, including 3 resets, run finished after 6 ms. (steps per millisecond=166 ) properties (out of 15) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 6 ms. (steps per millisecond=166 ) properties (out of 15) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 6 ms. (steps per millisecond=166 ) properties (out of 15) 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 15) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 16 ms. (steps per millisecond=62 ) properties (out of 15) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 7 ms. (steps per millisecond=143 ) properties (out of 15) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 10 ms. (steps per millisecond=100 ) properties (out of 15) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 10 ms. (steps per millisecond=100 ) properties (out of 15) seen :0
its-reach command run as :
/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202303021504/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...327
Loading property file /tmp/ReachabilityCardinality887150316299682016.prop.
SDD proceeding with computation,16 properties remain. new max is 4
SDD size :1 after 2
SDD proceeding with computation,16 properties remain. new max is 8
SDD size :2 after 8
SDD proceeding with computation,16 properties remain. new max is 16
SDD size :8 after 16
SDD proceeding with computation,16 properties remain. new max is 32
SDD size :16 after 64
Interrupted probabilistic random walk after 440533 steps, run timeout after 3001 ms. (steps per millisecond=146 ) properties seen :{}
Probabilistic random walk after 440533 steps, saw 62728 distinct states, run finished after 3003 ms. (steps per millisecond=146 ) properties seen :0
Running SMT prover for 15 properties.
// Phase 1: matrix 356 rows 1966 cols
[2023-03-16 20:07:51] [INFO ] Computed 1611 place invariants in 93 ms
[2023-03-16 20:07:52] [INFO ] [Real]Absence check using 3 positive place invariants in 13 ms returned sat
[2023-03-16 20:07:53] [INFO ] [Real]Absence check using 3 positive and 1608 generalized place invariants in 333 ms returned sat
[2023-03-16 20:07:53] [INFO ] After 1353ms SMT Verify possible using all constraints in real domain returned unsat :1 sat :0 real:14
[2023-03-16 20:07:54] [INFO ] [Nat]Absence check using 3 positive place invariants in 7 ms returned sat
[2023-03-16 20:07:54] [INFO ] [Nat]Absence check using 3 positive and 1608 generalized place invariants in 295 ms returned sat
[2023-03-16 20:08:18] [INFO ] After 23438ms SMT Verify possible using state equation in natural domain returned unsat :2 sat :11
[2023-03-16 20:08:18] [INFO ] After 23444ms SMT Verify possible using trap constraints in natural domain returned unsat :2 sat :11
Attempting to minimize the solution found.
Minimization took 0 ms.
[2023-03-16 20:08:18] [INFO ] After 25033ms SMT Verify possible using all constraints in natural domain returned unsat :2 sat :11
FORMULA QuasiCertifProtocol-PT-22-ReachabilityFireability-14 FALSE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA QuasiCertifProtocol-PT-22-ReachabilityFireability-02 FALSE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
Fused 15 Parikh solutions to 4 different solutions.
FORMULA QuasiCertifProtocol-PT-22-ReachabilityFireability-00 TRUE TECHNIQUES TOPOLOGICAL PARIKH_WALK
FORMULA QuasiCertifProtocol-PT-22-ReachabilityFireability-08 TRUE TECHNIQUES TOPOLOGICAL PARIKH_WALK
FORMULA QuasiCertifProtocol-PT-22-ReachabilityFireability-01 FALSE TECHNIQUES TOPOLOGICAL PARIKH_WALK
FORMULA QuasiCertifProtocol-PT-22-ReachabilityFireability-15 TRUE TECHNIQUES TOPOLOGICAL PARIKH_WALK
FORMULA QuasiCertifProtocol-PT-22-ReachabilityFireability-13 TRUE TECHNIQUES TOPOLOGICAL PARIKH_WALK
FORMULA QuasiCertifProtocol-PT-22-ReachabilityFireability-12 TRUE TECHNIQUES TOPOLOGICAL PARIKH_WALK
FORMULA QuasiCertifProtocol-PT-22-ReachabilityFireability-04 TRUE TECHNIQUES TOPOLOGICAL PARIKH_WALK
Parikh walk visited 7 properties in 20 ms.
Support contains 743 out of 1966 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 1966/1966 places, 356/356 transitions.
Graph (complete) has 16044 edges and 1966 vertex of which 1916 are kept as prefixes of interest. Removing 50 places using SCC suffix rule.11 ms
Discarding 50 places :
Also discarding 0 output transitions
Drop transitions removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 1916 transition count 355
Applied a total of 2 rules in 200 ms. Remains 1916 /1966 variables (removed 50) and now considering 355/356 (removed 1) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 201 ms. Remains : 1916/1966 places, 355/356 transitions.
Incomplete random walk after 10000 steps, including 370 resets, run finished after 295 ms. (steps per millisecond=33 ) properties (out of 6) seen :0
Incomplete Best-First random walk after 10001 steps, including 29 resets, run finished after 194 ms. (steps per millisecond=51 ) properties (out of 6) seen :0
Incomplete Best-First random walk after 10001 steps, including 30 resets, run finished after 124 ms. (steps per millisecond=80 ) properties (out of 6) seen :0
Incomplete Best-First random walk after 10001 steps, including 30 resets, run finished after 41 ms. (steps per millisecond=243 ) properties (out of 6) seen :0
Incomplete Best-First random walk after 10001 steps, including 25 resets, run finished after 32 ms. (steps per millisecond=312 ) properties (out of 6) seen :0
Incomplete Best-First random walk after 10001 steps, including 18 resets, run finished after 22 ms. (steps per millisecond=454 ) properties (out of 6) seen :0
Incomplete Best-First random walk after 10001 steps, including 18 resets, run finished after 22 ms. (steps per millisecond=454 ) properties (out of 6) seen :0
Interrupted probabilistic random walk after 655748 steps, run timeout after 3001 ms. (steps per millisecond=218 ) properties seen :{}
Probabilistic random walk after 655748 steps, saw 92414 distinct states, run finished after 3001 ms. (steps per millisecond=218 ) properties seen :0
Running SMT prover for 6 properties.
// Phase 1: matrix 355 rows 1916 cols
[2023-03-16 20:08:22] [INFO ] Computed 1563 place invariants in 63 ms
[2023-03-16 20:08:23] [INFO ] [Real]Absence check using 0 positive and 1563 generalized place invariants in 312 ms returned sat
[2023-03-16 20:08:23] [INFO ] After 859ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:6
[2023-03-16 20:08:24] [INFO ] [Nat]Absence check using 0 positive and 1563 generalized place invariants in 280 ms returned sat
[2023-03-16 20:08:33] [INFO ] After 8985ms SMT Verify possible using state equation in natural domain returned unsat :2 sat :4
[2023-03-16 20:08:35] [INFO ] After 11052ms SMT Verify possible using trap constraints in natural domain returned unsat :2 sat :4
Attempting to minimize the solution found.
Minimization took 1097 ms.
[2023-03-16 20:08:36] [INFO ] After 12976ms SMT Verify possible using all constraints in natural domain returned unsat :2 sat :4
FORMULA QuasiCertifProtocol-PT-22-ReachabilityFireability-07 FALSE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA QuasiCertifProtocol-PT-22-ReachabilityFireability-03 FALSE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
Fused 6 Parikh solutions to 4 different solutions.
FORMULA QuasiCertifProtocol-PT-22-ReachabilityFireability-06 FALSE TECHNIQUES TOPOLOGICAL PARIKH_WALK
Finished Parikh walk after 175 steps, including 0 resets, run visited all 3 properties in 4 ms. (steps per millisecond=43 )
FORMULA QuasiCertifProtocol-PT-22-ReachabilityFireability-11 FALSE TECHNIQUES TOPOLOGICAL PARIKH_WALK
FORMULA QuasiCertifProtocol-PT-22-ReachabilityFireability-10 TRUE TECHNIQUES TOPOLOGICAL PARIKH_WALK
FORMULA QuasiCertifProtocol-PT-22-ReachabilityFireability-09 TRUE TECHNIQUES TOPOLOGICAL PARIKH_WALK
Parikh walk visited 4 properties in 10 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)
All properties solved without resorting to model-checking.
Total runtime 49721 ms.
BK_STOP 1678997319589
--------------------
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
+ [[ ReachabilityFireability = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution ReachabilityFireability -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
+ 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_1.0.0.202303021504.jar
+ VERSION=202303021504
+ echo 'Running Version 202303021504'
+ /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/its-tools -pnfolder /home/mcc/execution -examination ReachabilityFireability -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="QuasiCertifProtocol-PT-22"
export BK_EXAMINATION="ReachabilityFireability"
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 2-5348"
echo " Executing tool itstools"
echo " Input is QuasiCertifProtocol-PT-22, examination is ReachabilityFireability"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r293-tall-167873946000895"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"
tar xzf /home/mcc/BenchKit/INPUTS/QuasiCertifProtocol-PT-22.tgz
mv QuasiCertifProtocol-PT-22 execution
cd execution
if [ "ReachabilityFireability" = "ReachabilityDeadlock" ] || [ "ReachabilityFireability" = "UpperBounds" ] || [ "ReachabilityFireability" = "QuasiLiveness" ] || [ "ReachabilityFireability" = "StableMarking" ] || [ "ReachabilityFireability" = "Liveness" ] || [ "ReachabilityFireability" = "OneSafe" ] || [ "ReachabilityFireability" = "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 [ "ReachabilityFireability" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "ReachabilityFireability" != "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 "ReachabilityFireability.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property ReachabilityFireability.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "ReachabilityFireability.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 '
echo "FORMULA_NAME $x"
done
elif [ "ReachabilityFireability" = "ReachabilityDeadlock" ] || [ "ReachabilityFireability" = "QuasiLiveness" ] || [ "ReachabilityFireability" = "StableMarking" ] || [ "ReachabilityFireability" = "Liveness" ] || [ "ReachabilityFireability" = "OneSafe" ] ; then
echo "FORMULA_NAME ReachabilityFireability"
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 ;