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.r472-smll-167912660500278.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 marciexred
Input is StigmergyCommit-PT-05a, examination is StableMarking
Time confinement is 1800 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r472-smll-167912660500278
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 1.1M
-rw-r--r-- 1 mcc users 6.0K Feb 26 11:07 CTLCardinality.txt
-rw-r--r-- 1 mcc users 65K Feb 26 11:07 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.9K Feb 26 11:01 CTLFireability.txt
-rw-r--r-- 1 mcc users 54K Feb 26 11:01 CTLFireability.xml
-rw-r--r-- 1 mcc users 3.7K Feb 25 17:11 LTLCardinality.txt
-rw-r--r-- 1 mcc users 26K Feb 25 17:11 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.3K Feb 25 17:11 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K Feb 25 17:11 LTLFireability.xml
-rw-r--r-- 1 mcc users 12K Feb 26 11:11 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 132K Feb 26 11:11 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 5.8K Feb 26 11:09 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 43K Feb 26 11:09 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K Feb 25 17:11 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K Feb 25 17:11 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 5 18:23 equiv_col
-rw-r--r-- 1 mcc users 4 Mar 5 18:23 instance
-rw-r--r-- 1 mcc users 6 Mar 5 18:23 iscolored
-rw-r--r-- 1 mcc users 613K 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

FORMULA_NAME StableMarking

=== Now, execution of the tool begins

BK_START 1679398339067

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=marciexred
BK_EXAMINATION=StableMarking
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=1800
BK_INPUT=StigmergyCommit-PT-05a
Applying reductions before tool marcie
Invoking reducer
Running Version 202303021504
[2023-03-21 11:32:22] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, StableMarking, -timeout, 180, -rebuildPNML]
[2023-03-21 11:32:22] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2023-03-21 11:32:22] [INFO ] Load time of PNML (sax parser for PT used): 336 ms
[2023-03-21 11:32:22] [INFO ] Transformed 220 places.
[2023-03-21 11:32:22] [INFO ] Transformed 1212 transitions.
[2023-03-21 11:32:22] [INFO ] Found NUPN structural information;
[2023-03-21 11:32:22] [INFO ] Parsed PT model containing 220 places and 1212 transitions and 11640 arcs in 527 ms.
Structural test allowed to assert that 14 places are NOT stable. Took 17 ms.
Ensure Unique test removed 800 transitions
Reduce redundant transitions removed 800 transitions.
Incomplete random walk after 10000 steps, including 2 resets, run finished after 833 ms. (steps per millisecond=12 ) properties (out of 206) seen :172
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 3 ms. (steps per millisecond=333 ) properties (out of 34) 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 34) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 8 ms. (steps per millisecond=125 ) properties (out of 34) 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 34) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 13 ms. (steps per millisecond=77 ) properties (out of 34) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 9 ms. (steps per millisecond=111 ) properties (out of 34) 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 34) 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 34) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 9 ms. (steps per millisecond=111 ) properties (out of 34) 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 34) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 9 ms. (steps per millisecond=111 ) properties (out of 34) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 9 ms. (steps per millisecond=111 ) properties (out of 34) 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 34) 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 34) 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 34) 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 34) 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 34) 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 34) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 8 ms. (steps per millisecond=125 ) properties (out of 34) 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 34) 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 34) 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 34) 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 34) 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 34) 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 34) 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 34) 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 34) 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 34) 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 34) 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 34) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 9 ms. (steps per millisecond=111 ) properties (out of 34) 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 34) 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 34) 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 34) seen :0
Running SMT prover for 34 properties.
[2023-03-21 11:32:24] [INFO ] Flow matrix only has 394 transitions (discarded 18 similar events)
// Phase 1: matrix 394 rows 220 cols
[2023-03-21 11:32:24] [INFO ] Computed 7 place invariants in 28 ms
[2023-03-21 11:32:24] [INFO ] After 633ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:34
[2023-03-21 11:32:25] [INFO ] [Nat]Absence check using 7 positive place invariants in 15 ms returned sat
[2023-03-21 11:32:26] [INFO ] After 884ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :34
[2023-03-21 11:32:26] [INFO ] State equation strengthened by 209 read => feed constraints.
[2023-03-21 11:32:27] [INFO ] After 979ms SMT Verify possible using 209 Read/Feed constraints in natural domain returned unsat :0 sat :34
[2023-03-21 11:32:27] [INFO ] Deduced a trap composed of 17 places in 268 ms of which 11 ms to minimize.
[2023-03-21 11:32:27] [INFO ] Deduced a trap composed of 16 places in 152 ms of which 1 ms to minimize.
[2023-03-21 11:32:28] [INFO ] Deduced a trap composed of 16 places in 110 ms of which 1 ms to minimize.
[2023-03-21 11:32:28] [INFO ] Deduced a trap composed of 16 places in 86 ms of which 2 ms to minimize.
[2023-03-21 11:32:28] [INFO ] Deduced a trap composed of 16 places in 118 ms of which 2 ms to minimize.
[2023-03-21 11:32:28] [INFO ] Deduced a trap composed of 16 places in 68 ms of which 1 ms to minimize.
[2023-03-21 11:32:28] [INFO ] Deduced a trap composed of 16 places in 90 ms of which 0 ms to minimize.
[2023-03-21 11:32:28] [INFO ] Deduced a trap composed of 16 places in 63 ms of which 1 ms to minimize.
[2023-03-21 11:32:28] [INFO ] Deduced a trap composed of 16 places in 79 ms of which 1 ms to minimize.
[2023-03-21 11:32:28] [INFO ] Trap strengthening (SAT) tested/added 10/9 trap constraints in 1273 ms
[2023-03-21 11:32:29] [INFO ] Deduced a trap composed of 16 places in 90 ms of which 1 ms to minimize.
[2023-03-21 11:32:29] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 139 ms
[2023-03-21 11:32:29] [INFO ] Deduced a trap composed of 16 places in 104 ms of which 2 ms to minimize.
[2023-03-21 11:32:29] [INFO ] Deduced a trap composed of 16 places in 86 ms of which 1 ms to minimize.
[2023-03-21 11:32:29] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 259 ms
[2023-03-21 11:32:29] [INFO ] Deduced a trap composed of 16 places in 88 ms of which 1 ms to minimize.
[2023-03-21 11:32:29] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 139 ms
[2023-03-21 11:32:30] [INFO ] Deduced a trap composed of 18 places in 86 ms of which 1 ms to minimize.
[2023-03-21 11:32:30] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 135 ms
[2023-03-21 11:32:30] [INFO ] After 4255ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :34
Attempting to minimize the solution found.
Minimization took 828 ms.
[2023-03-21 11:32:31] [INFO ] After 6735ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :34
Fused 34 Parikh solutions to 33 different solutions.
Parikh walk visited 0 properties in 1507 ms.
Support contains 34 out of 220 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 220/220 places, 412/412 transitions.
Graph (complete) has 453 edges and 220 vertex of which 219 are kept as prefixes of interest. Removing 1 places using SCC suffix rule.3 ms
Discarding 1 places :
Also discarding 1 output transitions
Drop transitions removed 1 transitions
Drop transitions removed 19 transitions
Reduce isomorphic transitions removed 19 transitions.
Drop transitions removed 24 transitions
Trivial Post-agglo rules discarded 24 transitions
Performed 24 trivial Post agglomeration. Transition count delta: 24
Iterating post reduction 0 with 43 rules applied. Total rules applied 44 place count 219 transition count 368
Reduce places removed 24 places and 0 transitions.
Ensure Unique test removed 15 transitions
Reduce isomorphic transitions removed 15 transitions.
Drop transitions removed 6 transitions
Trivial Post-agglo rules discarded 6 transitions
Performed 6 trivial Post agglomeration. Transition count delta: 6
Iterating post reduction 1 with 45 rules applied. Total rules applied 89 place count 195 transition count 347
Reduce places removed 6 places and 0 transitions.
Iterating post reduction 2 with 6 rules applied. Total rules applied 95 place count 189 transition count 347
Performed 38 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 38 Pre rules applied. Total rules applied 95 place count 189 transition count 309
Deduced a syphon composed of 38 places in 1 ms
Reduce places removed 38 places and 0 transitions.
Iterating global reduction 3 with 76 rules applied. Total rules applied 171 place count 151 transition count 309
Discarding 27 places :
Symmetric choice reduction at 3 with 27 rule applications. Total rules 198 place count 124 transition count 282
Iterating global reduction 3 with 27 rules applied. Total rules applied 225 place count 124 transition count 282
Discarding 27 places :
Symmetric choice reduction at 3 with 27 rule applications. Total rules 252 place count 97 transition count 255
Iterating global reduction 3 with 27 rules applied. Total rules applied 279 place count 97 transition count 255
Ensure Unique test removed 67 transitions
Reduce isomorphic transitions removed 67 transitions.
Iterating post reduction 3 with 67 rules applied. Total rules applied 346 place count 97 transition count 188
Discarding 5 places :
Symmetric choice reduction at 4 with 5 rule applications. Total rules 351 place count 92 transition count 183
Iterating global reduction 4 with 5 rules applied. Total rules applied 356 place count 92 transition count 183
Discarding 5 places :
Symmetric choice reduction at 4 with 5 rule applications. Total rules 361 place count 87 transition count 178
Iterating global reduction 4 with 5 rules applied. Total rules applied 366 place count 87 transition count 178
Ensure Unique test removed 4 transitions
Reduce isomorphic transitions removed 4 transitions.
Iterating post reduction 4 with 4 rules applied. Total rules applied 370 place count 87 transition count 174
Performed 6 Post agglomeration using F-continuation condition.Transition count delta: 6
Deduced a syphon composed of 6 places in 0 ms
Reduce places removed 6 places and 0 transitions.
Iterating global reduction 5 with 12 rules applied. Total rules applied 382 place count 81 transition count 168
Discarding 5 places :
Symmetric choice reduction at 5 with 5 rule applications. Total rules 387 place count 76 transition count 163
Iterating global reduction 5 with 5 rules applied. Total rules applied 392 place count 76 transition count 163
Discarding 5 places :
Symmetric choice reduction at 5 with 5 rule applications. Total rules 397 place count 71 transition count 158
Iterating global reduction 5 with 5 rules applied. Total rules applied 402 place count 71 transition count 158
Discarding 5 places :
Symmetric choice reduction at 5 with 5 rule applications. Total rules 407 place count 66 transition count 153
Iterating global reduction 5 with 5 rules applied. Total rules applied 412 place count 66 transition count 153
Drop transitions removed 10 transitions
Redundant transition composition rules discarded 10 transitions
Iterating global reduction 5 with 10 rules applied. Total rules applied 422 place count 66 transition count 143
Partial Free-agglomeration rule applied 12 times.
Drop transitions removed 12 transitions
Iterating global reduction 5 with 12 rules applied. Total rules applied 434 place count 66 transition count 143
Drop transitions removed 6 transitions
Redundant transition composition rules discarded 6 transitions
Iterating global reduction 5 with 6 rules applied. Total rules applied 440 place count 66 transition count 137
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 5 with 1 rules applied. Total rules applied 441 place count 65 transition count 136
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 5 with 1 rules applied. Total rules applied 442 place count 64 transition count 136
Performed 12 Post agglomeration using F-continuation condition with reduction of 52 identical transitions.
Deduced a syphon composed of 12 places in 0 ms
Reduce places removed 12 places and 0 transitions.
Iterating global reduction 6 with 24 rules applied. Total rules applied 466 place count 52 transition count 72
Drop transitions removed 5 transitions
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 6 transitions.
Iterating post reduction 6 with 6 rules applied. Total rules applied 472 place count 52 transition count 66
Drop transitions removed 5 transitions
Redundant transition composition rules discarded 5 transitions
Iterating global reduction 7 with 5 rules applied. Total rules applied 477 place count 52 transition count 61
Partial Post-agglomeration rule applied 1 times.
Drop transitions removed 1 transitions
Iterating global reduction 7 with 1 rules applied. Total rules applied 478 place count 52 transition count 61
Drop transitions removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 7 with 1 rules applied. Total rules applied 479 place count 52 transition count 60
Reduce places removed 6 places and 6 transitions.
Iterating global reduction 8 with 6 rules applied. Total rules applied 485 place count 46 transition count 54
Applied a total of 485 rules in 153 ms. Remains 46 /220 variables (removed 174) and now considering 54/412 (removed 358) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 153 ms. Remains : 46/220 places, 54/412 transitions.
Finished random walk after 310 steps, including 13 resets, run visited all 34 properties in 16 ms. (steps per millisecond=19 )
Able to resolve query StableMarking after proving 207 properties.
FORMULA StableMarking FALSE TECHNIQUES RANDOM_WALK MARKED_SUFFIX_TEST TOPOLOGICAL
Total runtime 10923 ms.
ITS solved all properties within timeout

BK_STOP 1679398354447

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

+ 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//../reducer/bin//../../itstools//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202303021504.jar
+ VERSION=202303021504
+ echo 'Running Version 202303021504'
+ /home/mcc/BenchKit/bin//../reducer/bin//../../itstools//itstools/its-tools -pnfolder /home/mcc/execution -examination StableMarking -timeout 180 -rebuildPNML

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="StigmergyCommit-PT-05a"
export BK_EXAMINATION="StableMarking"
export BK_TOOL="marciexred"
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 2-5348"
echo " Executing tool marciexred"
echo " Input is StigmergyCommit-PT-05a, examination is StableMarking"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r472-smll-167912660500278"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/StigmergyCommit-PT-05a.tgz
mv StigmergyCommit-PT-05a execution
cd execution
if [ "StableMarking" = "ReachabilityDeadlock" ] || [ "StableMarking" = "UpperBounds" ] || [ "StableMarking" = "QuasiLiveness" ] || [ "StableMarking" = "StableMarking" ] || [ "StableMarking" = "Liveness" ] || [ "StableMarking" = "OneSafe" ] || [ "StableMarking" = "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 [ "StableMarking" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "StableMarking" != "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 "StableMarking.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property StableMarking.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "StableMarking.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 '' StableMarking.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "StableMarking" = "ReachabilityDeadlock" ] || [ "StableMarking" = "QuasiLiveness" ] || [ "StableMarking" = "StableMarking" ] || [ "StableMarking" = "Liveness" ] || [ "StableMarking" = "OneSafe" ] ; then
echo "FORMULA_NAME StableMarking"
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 ;