fond
Model Checking Contest 2022
12th edition, Bergen, Norway, June 21, 2022
Execution of r132-tall-165271820900447
Last Updated
Jun 22, 2022

About the Execution of ITS-Tools for LamportFastMutEx-PT-8

Execution Summary
Max Memory
Used (MB)
Time wait (ms) CPU Usage (ms) I/O Wait (ms) Computed Result Execution
Status
210.228 4583.00 9854.00 50.80 TTFTTTTTTFTFFFTF normal

Execution Chart

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

Trace from the execution

Formatting '/data/fkordon/mcc2022-input.r132-tall-165271820900447.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2022-input.qcow2 cluster_size=65536 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
...............
=====================================================================
Generated by BenchKit 2-4028
Executing tool itstools
Input is LamportFastMutEx-PT-8, examination is ReachabilityFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r132-tall-165271820900447
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 1.6M
-rw-r--r-- 1 mcc users 37K Apr 29 19:10 CTLCardinality.txt
-rw-r--r-- 1 mcc users 226K Apr 29 19:10 CTLCardinality.xml
-rw-r--r-- 1 mcc users 37K Apr 29 19:08 CTLFireability.txt
-rw-r--r-- 1 mcc users 196K Apr 29 19:08 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K May 10 09:34 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.6K May 10 09:34 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 13K May 9 08:11 LTLCardinality.txt
-rw-r--r-- 1 mcc users 54K May 9 08:11 LTLCardinality.xml
-rw-r--r-- 1 mcc users 25K May 9 08:11 LTLFireability.txt
-rw-r--r-- 1 mcc users 101K May 9 08:11 LTLFireability.xml
-rw-r--r-- 1 mcc users 34K Apr 29 19:15 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 212K Apr 29 19:15 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 35K Apr 29 19:13 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 173K Apr 29 19:13 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 3.6K May 9 08:11 UpperBounds.txt
-rw-r--r-- 1 mcc users 8.6K May 9 08:11 UpperBounds.xml
-rw-r--r-- 1 mcc users 5 May 10 09:34 equiv_col
-rw-r--r-- 1 mcc users 2 May 10 09:34 instance
-rw-r--r-- 1 mcc users 6 May 10 09:34 iscolored
-rw-r--r-- 1 mcc users 329K May 10 09:34 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 LamportFastMutEx-PT-8-ReachabilityFireability-00
FORMULA_NAME LamportFastMutEx-PT-8-ReachabilityFireability-01
FORMULA_NAME LamportFastMutEx-PT-8-ReachabilityFireability-02
FORMULA_NAME LamportFastMutEx-PT-8-ReachabilityFireability-03
FORMULA_NAME LamportFastMutEx-PT-8-ReachabilityFireability-04
FORMULA_NAME LamportFastMutEx-PT-8-ReachabilityFireability-05
FORMULA_NAME LamportFastMutEx-PT-8-ReachabilityFireability-06
FORMULA_NAME LamportFastMutEx-PT-8-ReachabilityFireability-07
FORMULA_NAME LamportFastMutEx-PT-8-ReachabilityFireability-08
FORMULA_NAME LamportFastMutEx-PT-8-ReachabilityFireability-09
FORMULA_NAME LamportFastMutEx-PT-8-ReachabilityFireability-10
FORMULA_NAME LamportFastMutEx-PT-8-ReachabilityFireability-11
FORMULA_NAME LamportFastMutEx-PT-8-ReachabilityFireability-12
FORMULA_NAME LamportFastMutEx-PT-8-ReachabilityFireability-13
FORMULA_NAME LamportFastMutEx-PT-8-ReachabilityFireability-14
FORMULA_NAME LamportFastMutEx-PT-8-ReachabilityFireability-15

=== Now, execution of the tool begins

BK_START 1654241459845

Running Version 202205111006
[2022-06-03 07:31:01] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, ReachabilityFireability, -spotpath, /home/mcc/BenchKit/bin//..//ltlfilt, -z3path, /home/mcc/BenchKit/bin//..//z3/bin/z3, -yices2path, /home/mcc/BenchKit/bin//..//yices/bin/yices, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2022-06-03 07:31:01] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2022-06-03 07:31:01] [INFO ] Load time of PNML (sax parser for PT used): 136 ms
[2022-06-03 07:31:01] [INFO ] Transformed 315 places.
[2022-06-03 07:31:01] [INFO ] Transformed 666 transitions.
[2022-06-03 07:31:01] [INFO ] Found NUPN structural information;
[2022-06-03 07:31:01] [INFO ] Completing missing partition info from NUPN : creating a component with [P_start_1_0, P_start_1_1, P_start_1_2, P_start_1_3, P_start_1_4, P_start_1_5, P_start_1_6, P_start_1_7, P_start_1_8, P_b_0_false, P_b_0_true, P_b_1_false, P_b_1_true, P_b_2_false, P_b_2_true, P_b_3_false, P_b_3_true, P_b_4_false, P_b_4_true, P_b_5_false, P_b_5_true, P_b_6_false, P_b_6_true, P_b_7_false, P_b_7_true, P_b_8_false, P_b_8_true, P_setx_3_0, P_setx_3_1, P_setx_3_2, P_setx_3_3, P_setx_3_4, P_setx_3_5, P_setx_3_6, P_setx_3_7, P_setx_3_8, P_setbi_5_0, P_setbi_5_1, P_setbi_5_2, P_setbi_5_3, P_setbi_5_4, P_setbi_5_5, P_setbi_5_6, P_setbi_5_7, P_setbi_5_8, P_ify0_4_0, P_ify0_4_1, P_ify0_4_2, P_ify0_4_3, P_ify0_4_4, P_ify0_4_5, P_ify0_4_6, P_ify0_4_7, P_ify0_4_8, P_sety_9_0, P_sety_9_1, P_sety_9_2, P_sety_9_3, P_sety_9_4, P_sety_9_5, P_sety_9_6, P_sety_9_7, P_sety_9_8, P_ifxi_10_0, P_ifxi_10_1, P_ifxi_10_2, P_ifxi_10_3, P_ifxi_10_4, P_ifxi_10_5, P_ifxi_10_6, P_ifxi_10_7, P_ifxi_10_8, P_setbi_11_0, P_setbi_11_1, P_setbi_11_2, P_setbi_11_3, P_setbi_11_4, P_setbi_11_5, P_setbi_11_6, P_setbi_11_7, P_setbi_11_8, P_fordo_12_0, P_fordo_12_1, P_fordo_12_2, P_fordo_12_3, P_fordo_12_4, P_fordo_12_5, P_fordo_12_6, P_fordo_12_7, P_fordo_12_8, P_wait_0_0, P_wait_0_1, P_wait_0_2, P_wait_0_3, P_wait_0_4, P_wait_0_5, P_wait_0_6, P_wait_0_7, P_wait_0_8, P_wait_1_0, P_wait_1_1, P_wait_1_2, P_wait_1_3, P_wait_1_4, P_wait_1_5, P_wait_1_6, P_wait_1_7, P_wait_1_8, P_wait_2_0, P_wait_2_1, P_wait_2_2, P_wait_2_3, P_wait_2_4, P_wait_2_5, P_wait_2_6, P_wait_2_7, P_wait_2_8, P_wait_3_0, P_wait_3_1, P_wait_3_2, P_wait_3_3, P_wait_3_4, P_wait_3_5, P_wait_3_6, P_wait_3_7, P_wait_3_8, P_wait_4_0, P_wait_4_1, P_wait_4_2, P_wait_4_3, P_wait_4_4, P_wait_4_5, P_wait_4_6, P_wait_4_7, P_wait_4_8, P_wait_5_0, P_wait_5_1, P_wait_5_2, P_wait_5_3, P_wait_5_4, P_wait_5_5, P_wait_5_6, P_wait_5_7, P_wait_5_8, P_wait_6_0, P_wait_6_1, P_wait_6_2, P_wait_6_3, P_wait_6_4, P_wait_6_5, P_wait_6_6, P_wait_6_7, P_wait_6_8, P_wait_7_0, P_wait_7_1, P_wait_7_2, P_wait_7_3, P_wait_7_4, P_wait_7_5, P_wait_7_6, P_wait_7_7, P_wait_7_8, P_wait_8_0, P_wait_8_1, P_wait_8_2, P_wait_8_3, P_wait_8_4, P_wait_8_5, P_wait_8_6, P_wait_8_7, P_wait_8_8, P_await_13_0, P_await_13_1, P_await_13_2, P_await_13_3, P_await_13_4, P_await_13_5, P_await_13_6, P_await_13_7, P_await_13_8, P_done_0_0, P_done_0_1, P_done_0_2, P_done_0_3, P_done_0_4, P_done_0_5, P_done_0_6, P_done_0_7, P_done_0_8, P_done_1_0, P_done_1_1, P_done_1_2, P_done_1_3, P_done_1_4, P_done_1_5, P_done_1_6, P_done_1_7, P_done_1_8, P_done_2_0, P_done_2_1, P_done_2_2, P_done_2_3, P_done_2_4, P_done_2_5, P_done_2_6, P_done_2_7, P_done_2_8, P_done_3_0, P_done_3_1, P_done_3_2, P_done_3_3, P_done_3_4, P_done_3_5, P_done_3_6, P_done_3_7, P_done_3_8, P_done_4_0, P_done_4_1, P_done_4_2, P_done_4_3, P_done_4_4, P_done_4_5, P_done_4_6, P_done_4_7, P_done_4_8, P_done_5_0, P_done_5_1, P_done_5_2, P_done_5_3, P_done_5_4, P_done_5_5, P_done_5_6, P_done_5_7, P_done_5_8, P_done_6_0, P_done_6_1, P_done_6_2, P_done_6_3, P_done_6_4, P_done_6_5, P_done_6_6, P_done_6_7, P_done_6_8, P_done_7_0, P_done_7_1, P_done_7_2, P_done_7_3, P_done_7_4, P_done_7_5, P_done_7_6, P_done_7_7, P_done_7_8, P_done_8_0, P_done_8_1, P_done_8_2, P_done_8_3, P_done_8_4, P_done_8_5, P_done_8_6, P_done_8_7, P_done_8_8, P_ifyi_15_0, P_ifyi_15_1, P_ifyi_15_2, P_ifyi_15_3, P_ifyi_15_4, P_ifyi_15_5, P_ifyi_15_6, P_ifyi_15_7, P_ifyi_15_8, P_awaity_0, P_awaity_1, P_awaity_2, P_awaity_3, P_awaity_4, P_awaity_5, P_awaity_6, P_awaity_7, P_awaity_8, P_CS_21_0, P_CS_21_1, P_CS_21_2, P_CS_21_3, P_CS_21_4, P_CS_21_5, P_CS_21_6, P_CS_21_7, P_CS_21_8, P_setbi_24_0, P_setbi_24_1, P_setbi_24_2, P_setbi_24_3, P_setbi_24_4, P_setbi_24_5, P_setbi_24_6, P_setbi_24_7, P_setbi_24_8]
[2022-06-03 07:31:01] [INFO ] Parsed PT model containing 315 places and 666 transitions in 260 ms.
Parsed 16 properties from file /home/mcc/execution/ReachabilityFireability.xml in 20 ms.
Working with output stream class java.io.PrintStream
Deduced a syphon composed of 49 places in 3 ms
Reduce places removed 49 places and 82 transitions.
FORMULA LamportFastMutEx-PT-8-ReachabilityFireability-11 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA LamportFastMutEx-PT-8-ReachabilityFireability-15 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Incomplete random walk after 10000 steps, including 2 resets, run finished after 493 ms. (steps per millisecond=20 ) properties (out of 14) seen :9
FORMULA LamportFastMutEx-PT-8-ReachabilityFireability-09 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA LamportFastMutEx-PT-8-ReachabilityFireability-08 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA LamportFastMutEx-PT-8-ReachabilityFireability-07 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA LamportFastMutEx-PT-8-ReachabilityFireability-06 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA LamportFastMutEx-PT-8-ReachabilityFireability-05 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA LamportFastMutEx-PT-8-ReachabilityFireability-04 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA LamportFastMutEx-PT-8-ReachabilityFireability-03 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA LamportFastMutEx-PT-8-ReachabilityFireability-01 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA LamportFastMutEx-PT-8-ReachabilityFireability-00 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 415 ms. (steps per millisecond=24 ) properties (out of 5) seen :1
FORMULA LamportFastMutEx-PT-8-ReachabilityFireability-02 FALSE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
Incomplete Best-First random walk after 10000 steps, including 2 resets, run finished after 82 ms. (steps per millisecond=121 ) properties (out of 4) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 51 ms. (steps per millisecond=196 ) properties (out of 4) seen :0
Incomplete Best-First random walk after 10000 steps, including 2 resets, run finished after 70 ms. (steps per millisecond=142 ) properties (out of 4) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 43 ms. (steps per millisecond=232 ) properties (out of 4) seen :0
Running SMT prover for 4 properties.
[2022-06-03 07:31:02] [INFO ] Flow matrix only has 416 transitions (discarded 168 similar events)
// Phase 1: matrix 416 rows 266 cols
[2022-06-03 07:31:02] [INFO ] Computed 82 place invariants in 18 ms
[2022-06-03 07:31:02] [INFO ] After 218ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:4
[2022-06-03 07:31:03] [INFO ] [Nat]Absence check using 82 positive place invariants in 18 ms returned sat
[2022-06-03 07:31:03] [INFO ] After 198ms SMT Verify possible using state equation in natural domain returned unsat :1 sat :3
[2022-06-03 07:31:03] [INFO ] State equation strengthened by 112 read => feed constraints.
[2022-06-03 07:31:03] [INFO ] After 131ms SMT Verify possible using 112 Read/Feed constraints in natural domain returned unsat :1 sat :3
[2022-06-03 07:31:03] [INFO ] Deduced a trap composed of 8 places in 111 ms of which 4 ms to minimize.
[2022-06-03 07:31:03] [INFO ] Deduced a trap composed of 9 places in 106 ms of which 1 ms to minimize.
[2022-06-03 07:31:03] [INFO ] Deduced a trap composed of 20 places in 89 ms of which 1 ms to minimize.
[2022-06-03 07:31:03] [INFO ] Deduced a trap composed of 23 places in 83 ms of which 2 ms to minimize.
[2022-06-03 07:31:04] [INFO ] Deduced a trap composed of 18 places in 94 ms of which 0 ms to minimize.
[2022-06-03 07:31:04] [INFO ] Deduced a trap composed of 9 places in 85 ms of which 1 ms to minimize.
[2022-06-03 07:31:04] [INFO ] Deduced a trap composed of 15 places in 82 ms of which 0 ms to minimize.
[2022-06-03 07:31:04] [INFO ] Trap strengthening procedure managed to obtain unsat after adding 7 trap constraints in 807 ms
[2022-06-03 07:31:04] [INFO ] Deduced a trap composed of 9 places in 70 ms of which 1 ms to minimize.
[2022-06-03 07:31:04] [INFO ] Trap strengthening procedure managed to obtain unsat after adding 1 trap constraints in 86 ms
[2022-06-03 07:31:04] [INFO ] After 1091ms SMT Verify possible using trap constraints in natural domain returned unsat :4 sat :0
[2022-06-03 07:31:04] [INFO ] After 1460ms SMT Verify possible using all constraints in natural domain returned unsat :4 sat :0
FORMULA LamportFastMutEx-PT-8-ReachabilityFireability-14 TRUE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA LamportFastMutEx-PT-8-ReachabilityFireability-13 FALSE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA LamportFastMutEx-PT-8-ReachabilityFireability-12 FALSE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA LamportFastMutEx-PT-8-ReachabilityFireability-10 TRUE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
Fused 4 Parikh solutions to 0 different solutions.
Parikh walk visited 0 properties in 2 ms.
All properties solved without resorting to model-checking.
Total runtime 3337 ms.

BK_STOP 1654241464428

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

+ export LANG=C
+ LANG=C
+ export BINDIR=/home/mcc/BenchKit/bin//../
+ BINDIR=/home/mcc/BenchKit/bin//../
++ pwd
+ export MODEL=/home/mcc/execution
+ MODEL=/home/mcc/execution
+ [[ ReachabilityFireability = StateSpace ]]
+ /home/mcc/BenchKit/bin//..//runeclipse.sh /home/mcc/execution ReachabilityFireability -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600
+ ulimit -s 65536
+ export PYTHONPATH=/usr/lib/python3.9/site-packages/
+ PYTHONPATH=/usr/lib/python3.9/site-packages/
+ export LD_LIBRARY_PATH=/usr/local/lib:
+ LD_LIBRARY_PATH=/usr/local/lib:
+ [[ -z '' ]]
+ export LTSMIN_MEM_SIZE=8589934592
+ LTSMIN_MEM_SIZE=8589934592
++ sed s/.jar//
++ perl -pe 's/.*\.//g'
++ ls /home/mcc/BenchKit/bin//..//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202205111006.jar
+ VERSION=202205111006
+ echo 'Running Version 202205111006'
+ /home/mcc/BenchKit/bin//..//itstools/its-tools -data @none -pnfolder /home/mcc/execution -examination ReachabilityFireability -spotpath /home/mcc/BenchKit/bin//..//ltlfilt -z3path /home/mcc/BenchKit/bin//..//z3/bin/z3 -yices2path /home/mcc/BenchKit/bin//..//yices/bin/yices -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600 -vmargs -Dosgi.locking=none -Declipse.stateSaveDelayInterval=-1 -Dosgi.configuration.area=@none -Xss128m -Xms40m -Xmx8192m

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="LamportFastMutEx-PT-8"
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 2-4028"
echo " Executing tool itstools"
echo " Input is LamportFastMutEx-PT-8, 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 r132-tall-165271820900447"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/LamportFastMutEx-PT-8.tgz
mv LamportFastMutEx-PT-8 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 '' ReachabilityFireability.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
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 ;