Execution Chart

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

Trace from the execution

Formatting '/mnt/tpsp/fkordon/mcc2023-input.r423-tajo-167905976300103.qcow2', fmt=qcow2 size=4294967296 backing_file='/mnt/tpsp/fkordon/mcc2023-input.qcow2' encryption=off cluster_size=65536 lazy_refcounts=off
Waiting for the VM to be ready (probing ssh)
...................................................................................................................................................................
=====================================================================
Generated by BenchKit 2-5348
Executing tool lolaxred
Input is ShieldRVs-PT-020A, examination is ReachabilityFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r423-tajo-167905976300103
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 556K
-rw-r--r-- 1 mcc users 7.0K Feb 26 18:44 CTLCardinality.txt
-rw-r--r-- 1 mcc users 76K Feb 26 18:44 CTLCardinality.xml
-rw-r--r-- 1 mcc users 6.0K Feb 26 18:36 CTLFireability.txt
-rw-r--r-- 1 mcc users 57K Feb 26 18:36 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Jan 29 11:41 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.5K Jan 29 11:41 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 3.5K Feb 25 17:02 LTLCardinality.txt
-rw-r--r-- 1 mcc users 24K Feb 25 17:02 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.3K Feb 25 17:02 LTLFireability.txt
-rw-r--r-- 1 mcc users 19K Feb 25 17:02 LTLFireability.xml
-rw-r--r-- 1 mcc users 9.8K Feb 26 18:55 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 104K Feb 26 18:55 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 7.7K Feb 26 18:50 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 64K Feb 26 18:50 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K Feb 25 17:02 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K Feb 25 17:02 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 5 18:23 equiv_col
-rw-r--r-- 1 mcc users 5 Mar 5 18:23 instance
-rw-r--r-- 1 mcc users 6 Mar 5 18:23 iscolored
-rw-r--r-- 1 mcc users 127K 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 ShieldRVs-PT-020A-ReachabilityFireability-00
FORMULA_NAME ShieldRVs-PT-020A-ReachabilityFireability-01
FORMULA_NAME ShieldRVs-PT-020A-ReachabilityFireability-02
FORMULA_NAME ShieldRVs-PT-020A-ReachabilityFireability-03
FORMULA_NAME ShieldRVs-PT-020A-ReachabilityFireability-04
FORMULA_NAME ShieldRVs-PT-020A-ReachabilityFireability-05
FORMULA_NAME ShieldRVs-PT-020A-ReachabilityFireability-06
FORMULA_NAME ShieldRVs-PT-020A-ReachabilityFireability-07
FORMULA_NAME ShieldRVs-PT-020A-ReachabilityFireability-08
FORMULA_NAME ShieldRVs-PT-020A-ReachabilityFireability-09
FORMULA_NAME ShieldRVs-PT-020A-ReachabilityFireability-10
FORMULA_NAME ShieldRVs-PT-020A-ReachabilityFireability-11
FORMULA_NAME ShieldRVs-PT-020A-ReachabilityFireability-12
FORMULA_NAME ShieldRVs-PT-020A-ReachabilityFireability-13
FORMULA_NAME ShieldRVs-PT-020A-ReachabilityFireability-14
FORMULA_NAME ShieldRVs-PT-020A-ReachabilityFireability-15

=== Now, execution of the tool begins

BK_START 1679242313038

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=lolaxred
BK_EXAMINATION=ReachabilityFireability
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=ShieldRVs-PT-020A
Applying reductions before tool lola
Invoking reducer
Running Version 202303021504
[2023-03-19 16:11:55] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, ReachabilityFireability, -timeout, 360, -rebuildPNML]
[2023-03-19 16:11:55] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2023-03-19 16:11:55] [INFO ] Load time of PNML (sax parser for PT used): 97 ms
[2023-03-19 16:11:55] [INFO ] Transformed 283 places.
[2023-03-19 16:11:55] [INFO ] Transformed 383 transitions.
[2023-03-19 16:11:55] [INFO ] Found NUPN structural information;
[2023-03-19 16:11:55] [INFO ] Parsed PT model containing 283 places and 383 transitions and 1840 arcs in 193 ms.
Parsed 16 properties from file /home/mcc/execution/ReachabilityFireability.xml in 17 ms.
Working with output stream class java.io.PrintStream
Incomplete random walk after 10000 steps, including 36 resets, run finished after 401 ms. (steps per millisecond=24 ) properties (out of 16) seen :11
FORMULA ShieldRVs-PT-020A-ReachabilityFireability-14 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA ShieldRVs-PT-020A-ReachabilityFireability-13 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA ShieldRVs-PT-020A-ReachabilityFireability-12 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA ShieldRVs-PT-020A-ReachabilityFireability-11 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA ShieldRVs-PT-020A-ReachabilityFireability-10 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA ShieldRVs-PT-020A-ReachabilityFireability-09 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA ShieldRVs-PT-020A-ReachabilityFireability-08 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA ShieldRVs-PT-020A-ReachabilityFireability-04 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA ShieldRVs-PT-020A-ReachabilityFireability-03 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA ShieldRVs-PT-020A-ReachabilityFireability-02 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA ShieldRVs-PT-020A-ReachabilityFireability-01 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
Incomplete Best-First random walk after 10001 steps, including 4 resets, run finished after 70 ms. (steps per millisecond=142 ) properties (out of 5) seen :1
FORMULA ShieldRVs-PT-020A-ReachabilityFireability-00 TRUE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
Incomplete Best-First random walk after 10001 steps, including 4 resets, run finished after 93 ms. (steps per millisecond=107 ) properties (out of 4) seen :1
FORMULA ShieldRVs-PT-020A-ReachabilityFireability-06 TRUE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
Incomplete Best-First random walk after 10001 steps, including 3 resets, run finished after 68 ms. (steps per millisecond=147 ) properties (out of 3) seen :1
FORMULA ShieldRVs-PT-020A-ReachabilityFireability-07 TRUE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
Incomplete Best-First random walk after 10001 steps, including 3 resets, run finished after 45 ms. (steps per millisecond=222 ) properties (out of 2) seen :1
FORMULA ShieldRVs-PT-020A-ReachabilityFireability-15 TRUE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
Running SMT prover for 1 properties.
// Phase 1: matrix 383 rows 283 cols
[2023-03-19 16:11:56] [INFO ] Computed 81 place invariants in 10 ms
[2023-03-19 16:11:56] [INFO ] After 269ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
[2023-03-19 16:11:56] [INFO ] [Nat]Absence check using 81 positive place invariants in 35 ms returned sat
[2023-03-19 16:11:56] [INFO ] After 307ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
[2023-03-19 16:11:57] [INFO ] After 485ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
Attempting to minimize the solution found.
Minimization took 91 ms.
[2023-03-19 16:11:57] [INFO ] After 706ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
Parikh walk visited 0 properties in 11 ms.
Support contains 50 out of 283 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 283/283 places, 383/383 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 4 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 0 with 2 rules applied. Total rules applied 2 place count 282 transition count 382
Partial Free-agglomeration rule applied 33 times.
Drop transitions removed 33 transitions
Iterating global reduction 0 with 33 rules applied. Total rules applied 35 place count 282 transition count 382
Applied a total of 35 rules in 111 ms. Remains 282 /283 variables (removed 1) and now considering 382/383 (removed 1) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 111 ms. Remains : 282/283 places, 382/383 transitions.
Incomplete random walk after 10000 steps, including 39 resets, run finished after 60 ms. (steps per millisecond=166 ) properties (out of 1) seen :0
Incomplete Best-First random walk after 10001 steps, including 4 resets, run finished after 28 ms. (steps per millisecond=357 ) properties (out of 1) seen :0
Interrupted probabilistic random walk after 701607 steps, run timeout after 3001 ms. (steps per millisecond=233 ) properties seen :{}
Probabilistic random walk after 701607 steps, saw 140302 distinct states, run finished after 3002 ms. (steps per millisecond=233 ) properties seen :0
Running SMT prover for 1 properties.
// Phase 1: matrix 382 rows 282 cols
[2023-03-19 16:12:00] [INFO ] Computed 81 place invariants in 10 ms
[2023-03-19 16:12:00] [INFO ] After 254ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
[2023-03-19 16:12:00] [INFO ] [Nat]Absence check using 81 positive place invariants in 35 ms returned sat
[2023-03-19 16:12:02] [INFO ] After 1996ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
[2023-03-19 16:12:03] [INFO ] Deduced a trap composed of 11 places in 80 ms of which 1 ms to minimize.
[2023-03-19 16:12:03] [INFO ] Deduced a trap composed of 12 places in 51 ms of which 1 ms to minimize.
[2023-03-19 16:12:03] [INFO ] Deduced a trap composed of 12 places in 91 ms of which 2 ms to minimize.
[2023-03-19 16:12:03] [INFO ] Deduced a trap composed of 11 places in 64 ms of which 1 ms to minimize.
[2023-03-19 16:12:03] [INFO ] Trap strengthening (SAT) tested/added 5/4 trap constraints in 424 ms
[2023-03-19 16:12:03] [INFO ] After 2543ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
Attempting to minimize the solution found.
Minimization took 102 ms.
[2023-03-19 16:12:03] [INFO ] After 2755ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
Parikh walk visited 0 properties in 5 ms.
Support contains 50 out of 282 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 282/282 places, 382/382 transitions.
Applied a total of 0 rules in 20 ms. Remains 282 /282 variables (removed 0) and now considering 382/382 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 20 ms. Remains : 282/282 places, 382/382 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 282/282 places, 382/382 transitions.
Applied a total of 0 rules in 17 ms. Remains 282 /282 variables (removed 0) and now considering 382/382 (removed 0) transitions.
[2023-03-19 16:12:03] [INFO ] Invariant cache hit.
[2023-03-19 16:12:03] [INFO ] Implicit Places using invariants in 215 ms returned []
[2023-03-19 16:12:03] [INFO ] Invariant cache hit.
[2023-03-19 16:12:04] [INFO ] Implicit Places using invariants and state equation in 314 ms returned []
Implicit Place search using SMT with State Equation took 533 ms to find 0 implicit places.
[2023-03-19 16:12:04] [INFO ] Redundant transitions in 53 ms returned []
[2023-03-19 16:12:04] [INFO ] Invariant cache hit.
[2023-03-19 16:12:04] [INFO ] Dead Transitions using invariants and state equation in 200 ms found 0 transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 812 ms. Remains : 282/282 places, 382/382 transitions.
Applied a total of 0 rules in 13 ms. Remains 282 /282 variables (removed 0) and now considering 382/382 (removed 0) transitions.
Running SMT prover for 1 properties.
[2023-03-19 16:12:04] [INFO ] Invariant cache hit.
[2023-03-19 16:12:04] [INFO ] After 103ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
[2023-03-19 16:12:04] [INFO ] [Nat]Absence check using 81 positive place invariants in 9 ms returned sat
[2023-03-19 16:12:04] [INFO ] After 277ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
[2023-03-19 16:12:05] [INFO ] Deduced a trap composed of 7 places in 67 ms of which 1 ms to minimize.
[2023-03-19 16:12:05] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 110 ms
[2023-03-19 16:12:05] [INFO ] After 484ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
Attempting to minimize the solution found.
Minimization took 100 ms.
[2023-03-19 16:12:05] [INFO ] After 650ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
[2023-03-19 16:12:05] [INFO ] Export to MCC of 1 properties in file /home/mcc/execution/ReachabilityFireability.sr.xml took 7 ms.
[2023-03-19 16:12:05] [INFO ] Export to PNML in file /home/mcc/execution/model.sr.pnml of net with 282 places, 382 transitions and 1904 arcs took 6 ms.
[2023-03-19 16:12:05] [INFO ] Flatten gal took : 87 ms
Total runtime 10316 ms.
There are residual formulas that ITS could not solve within timeout
starting LoLA
BK_INPUT ShieldRVs-PT-020A
BK_EXAMINATION: ReachabilityFireability
bin directory: /home/mcc/BenchKit/bin//../reducer/bin//../../lola/bin/
current directory: /home/mcc/execution/376
ReachabilityFireability

FORMULA ShieldRVs-PT-020A-ReachabilityFireability-05 TRUE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

BK_STOP 1679242325940
TIME LIMIT: Killed by timeout after 3600 seconds
MemTotal: 16393340 kB
MemFree: 11046216 kB
After kill :
MemTotal: 16393340 kB
MemFree: 11045720 kB

BK_TIME_CONFINEMENT_REACHED

--------------------
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 ReachabilityFireability -timeout 360 -rebuildPNML
lola: MEM LIMIT 32
lola: MEM LIMIT 5
lola: NET
lola: input: PNML file (--pnmlnet)
lola: reading net from /home/mcc/execution/376/model.pnml
lola: reading pnml
lola: PNML file contains place/transition net
lola: finished parsing
lola: closed net file /home/mcc/execution/376/model.pnml
lola: Reading formula.
lola: Using XML format (--xmlformula)
lola: reading XML formula
lola: reading formula from /home/mcc/execution/376/ReachabilityFireability.xml
lola: Rule S: 0 transitions removed,0 places removed
lola: Created skeleton in 0.000000 secs.
lola: rewrite Frontend/Parser/formula_rewrite.k:711
lola: rewrite Frontend/Parser/formula_rewrite.k:711
lola: rewrite Frontend/Parser/formula_rewrite.k:711
lola: rewrite Frontend/Parser/formula_rewrite.k:711
lola: LAUNCH task # 7 (type EXCL) for 0 ShieldRVs-PT-020A-ReachabilityFireability-05
lola: time limit : 3600 sec
lola: memory limit: 32 pages
lola: LAUNCH task # 3 (type FNDP) for 0 ShieldRVs-PT-020A-ReachabilityFireability-05
lola: time limit : 32000000 sec
lola: memory limit: 5 pages
lola: LAUNCH task # 4 (type EQUN) for 0 ShieldRVs-PT-020A-ReachabilityFireability-05
lola: time limit : 32000000 sec
lola: memory limit: 5 pages
lola: rewrite Frontend/Parser/formula_rewrite.k:711
lola: LAUNCH task # 6 (type SRCH) for 0 ShieldRVs-PT-020A-ReachabilityFireability-05
lola: time limit : 32000000 sec
lola: memory limit: 5 pages
lola: FINISHED task # 3 (type FNDP) for ShieldRVs-PT-020A-ReachabilityFireability-05
lola: result : true
lola: fired transitions : 397
lola: tried executions : 3
lola: time used : 0.000000
lola: memory pages used : 0
lola: CANCELED task # 4 (type EQUN) for ShieldRVs-PT-020A-ReachabilityFireability-05 (obsolete)
lola: CANCELED task # 6 (type SRCH) for ShieldRVs-PT-020A-ReachabilityFireability-05 (obsolete)
lola: CANCELED task # 7 (type EXCL) for ShieldRVs-PT-020A-ReachabilityFireability-05 (obsolete)
lola: Portfolio finished: no open formulas

FINAL RESULTS
FINISHED FORMULA: CATEGORY VALUE PRODUCED BY
ShieldRVs-PT-020A-ReachabilityFireability-05: EF true findpath


Time elapsed: 0 secs. Pages in use: 2
sara: try reading problem file /home/mcc/execution/376/ReachabilityFireability-4.sara.
sara: place or transition ordering is non-deterministic
sara: warning, failure of lp_solve (at job 11)

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="ShieldRVs-PT-020A"
export BK_EXAMINATION="ReachabilityFireability"
export BK_TOOL="lolaxred"
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 lolaxred"
echo " Input is ShieldRVs-PT-020A, 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 r423-tajo-167905976300103"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/ShieldRVs-PT-020A.tgz
mv ShieldRVs-PT-020A 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 ;