Execution Chart

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

Trace from the execution

Formatting '/data/fko/mcc2020-input.r093-oct2-158940140400323.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fko/mcc2020-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 smart
Input is IBM319-PT-none, examination is CTLCardinality
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 1
Run identifier is r093-oct2-158940140400323
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 392K
-rw-r--r-- 1 mcc users 5.1K Apr 27 15:14 CTLCardinality.txt
-rw-r--r-- 1 mcc users 19K Apr 27 15:14 CTLCardinality.xml
-rw-r--r-- 1 mcc users 4.5K Apr 27 15:14 CTLFireability.txt
-rw-r--r-- 1 mcc users 18K Apr 27 15:14 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.0K Apr 27 15:14 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 5.6K Apr 27 15:14 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 5.7K Apr 27 15:14 LTLCardinality.txt
-rw-r--r-- 1 mcc users 26K Apr 28 14:01 LTLCardinality.xml
-rw-r--r-- 1 mcc users 3.9K Apr 27 15:14 LTLFireability.txt
-rw-r--r-- 1 mcc users 19K Apr 28 14:01 LTLFireability.xml
-rw-r--r-- 1 mcc users 5.4K Apr 27 15:14 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 19K Apr 27 15:14 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 5.1K Apr 27 15:14 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 19K Apr 27 15:14 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 2.1K Apr 27 15:14 UpperBounds.txt
-rw-r--r-- 1 mcc users 4.1K Apr 27 15:14 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Apr 27 15:14 equiv_col
-rw-r--r-- 1 mcc users 5 Apr 27 15:14 instance
-rw-r--r-- 1 mcc users 6 Apr 27 15:14 iscolored
-rw-r--r-- 1 mcc users 184K Apr 27 15:14 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 IBM319-PT-none-CTLCardinality-00
FORMULA_NAME IBM319-PT-none-CTLCardinality-01
FORMULA_NAME IBM319-PT-none-CTLCardinality-02
FORMULA_NAME IBM319-PT-none-CTLCardinality-03
FORMULA_NAME IBM319-PT-none-CTLCardinality-04
FORMULA_NAME IBM319-PT-none-CTLCardinality-05
FORMULA_NAME IBM319-PT-none-CTLCardinality-06
FORMULA_NAME IBM319-PT-none-CTLCardinality-07
FORMULA_NAME IBM319-PT-none-CTLCardinality-08
FORMULA_NAME IBM319-PT-none-CTLCardinality-09
FORMULA_NAME IBM319-PT-none-CTLCardinality-10
FORMULA_NAME IBM319-PT-none-CTLCardinality-11
FORMULA_NAME IBM319-PT-none-CTLCardinality-12
FORMULA_NAME IBM319-PT-none-CTLCardinality-13
FORMULA_NAME IBM319-PT-none-CTLCardinality-14
FORMULA_NAME IBM319-PT-none-CTLCardinality-15

=== Now, execution of the tool begins

BK_START 1589614174033

======================================================
========== this is Smart for the MCC'2018 ============
======================================================
Running IBM319 (PT), instance none
Examination CTLCardinality
Parser /home/mcc/BenchKit/bin/parser/CTLCard.jar
Model checker /home/mcc/BenchKit/bin/rem_exec/smart

GOT IT HERE. BS
Petri model created: 253 places, 178 transitions, 526 arcs.
AT ITER 0 NEW BEST:: SOT 25122 SOS 3564 HAS SOPS 3564 HAS SOUS 3547 HAS SOUPS 3547 WITH SCORE 3550.564
AT ITER 6 NEW BEST:: SOT 25083 SOS 3539 HAS SOPS 3539 HAS SOUS 3520 HAS SOUPS 3520 WITH SCORE 3523.539
AT ITER 113 NEW BEST:: SOT 25083 SOS 3518 HAS SOPS 3518 HAS SOUS 3499 HAS SOUPS 3499 WITH SCORE 3502.518
AT ITER 129 NEW BEST:: SOT 25078 SOS 3516 HAS SOPS 3516 HAS SOUS 3497 HAS SOUPS 3497 WITH SCORE 3500.516
AT ITER 376 NEW BEST:: SOT 25077 SOS 3508 HAS SOPS 3508 HAS SOUS 3489 HAS SOUPS 3489 WITH SCORE 3492.508
AT ITER 551 NEW BEST:: SOT 25076 SOS 3494 HAS SOPS 3494 HAS SOUS 3475 HAS SOUPS 3475 WITH SCORE 3478.494
AT ITER 582 NEW BEST:: SOT 25059 SOS 3492 HAS SOPS 3492 HAS SOUS 3473 HAS SOUPS 3473 WITH SCORE 3476.492
AT ITER 590 NEW BEST:: SOT 25057 SOS 3490 HAS SOPS 3490 HAS SOUS 3471 HAS SOUPS 3471 WITH SCORE 3474.49
AT ITER 592 NEW BEST:: SOT 25039 SOS 3479 HAS SOPS 3479 HAS SOUS 3460 HAS SOUPS 3460 WITH SCORE 3463.479
AT ITER 594 NEW BEST:: SOT 25025 SOS 3469 HAS SOPS 3469 HAS SOUS 3450 HAS SOUPS 3450 WITH SCORE 3453.469
AT ITER 625 NEW BEST:: SOT 25024 SOS 3467 HAS SOPS 3467 HAS SOUS 3448 HAS SOUPS 3448 WITH SCORE 3451.467
AT ITER 635 NEW BEST:: SOT 25014 SOS 3465 HAS SOPS 3465 HAS SOUS 3446 HAS SOUPS 3446 WITH SCORE 3449.465
AT ITER 779 NEW BEST:: SOT 25003 SOS 3458 HAS SOPS 3458 HAS SOUS 3438 HAS SOUPS 3438 WITH SCORE 3441.458
AT ITER 835 NEW BEST:: SOT 24992 SOS 3484 HAS SOPS 3484 HAS SOUS 3426 HAS SOUPS 3426 WITH SCORE 3429.484
AT ITER 1035 NEW BEST:: SOT 24972 SOS 3450 HAS SOPS 3450 HAS SOUS 3392 HAS SOUPS 3392 WITH SCORE 3395.45
AT ITER 1050 NEW BEST:: SOT 24972 SOS 3449 HAS SOPS 3449 HAS SOUS 3391 HAS SOUPS 3391 WITH SCORE 3394.449
AT ITER 1094 NEW BEST:: SOT 24972 SOS 3437 HAS SOPS 3437 HAS SOUS 3379 HAS SOUPS 3379 WITH SCORE 3382.437
AT ITER 1289 NEW BEST:: SOT 24960 SOS 3436 HAS SOPS 3436 HAS SOUS 3378 HAS SOUPS 3378 WITH SCORE 3381.436
AT ITER 1395 NEW BEST:: SOT 24959 SOS 3428 HAS SOPS 3428 HAS SOUS 3370 HAS SOUPS 3370 WITH SCORE 3373.428
AT ITER 1407 NEW BEST:: SOT 24959 SOS 3426 HAS SOPS 3426 HAS SOUS 3368 HAS SOUPS 3368 WITH SCORE 3371.426
AT ITER 1438 NEW BEST:: SOT 24959 SOS 3422 HAS SOPS 3422 HAS SOUS 3364 HAS SOUPS 3364 WITH SCORE 3367.422
AT ITER 1440 NEW BEST:: SOT 24950 SOS 3416 HAS SOPS 3416 HAS SOUS 3358 HAS SOUPS 3358 WITH SCORE 3361.416
AT ITER 1673 NEW BEST:: SOT 24928 SOS 3413 HAS SOPS 3413 HAS SOUS 3353 HAS SOUPS 3353 WITH SCORE 3356.413
AT ITER 1704 NEW BEST:: SOT 24898 SOS 3422 HAS SOPS 3422 HAS SOUS 3341 HAS SOUPS 3341 WITH SCORE 3344.422
AT ITER 1902 NEW BEST:: SOT 24897 SOS 3420 HAS SOPS 3420 HAS SOUS 3339 HAS SOUPS 3339 WITH SCORE 3342.42
AT ITER 1918 NEW BEST:: SOT 24894 SOS 3419 HAS SOPS 3419 HAS SOUS 3338 HAS SOUPS 3338 WITH SCORE 3341.419
AT ITER 1926 NEW BEST:: SOT 24893 SOS 3417 HAS SOPS 3417 HAS SOUS 3336 HAS SOUPS 3336 WITH SCORE 3339.417
AT ITER 2047 NEW BEST:: SOT 24892 SOS 3416 HAS SOPS 3416 HAS SOUS 3335 HAS SOUPS 3335 WITH SCORE 3338.416
AT ITER 2102 NEW BEST:: SOT 24900 SOS 3415 HAS SOPS 3415 HAS SOUS 3334 HAS SOUPS 3334 WITH SCORE 3337.415
AT ITER 2197 NEW BEST:: SOT 24887 SOS 3402 HAS SOPS 3402 HAS SOUS 3321 HAS SOUPS 3321 WITH SCORE 3324.402
AT ITER 2371 NEW BEST:: SOT 24887 SOS 3401 HAS SOPS 3401 HAS SOUS 3320 HAS SOUPS 3320 WITH SCORE 3323.401
AT ITER 2513 NEW BEST:: SOT 24887 SOS 3400 HAS SOPS 3400 HAS SOUS 3319 HAS SOUPS 3319 WITH SCORE 3322.4
AT ITER 2570 NEW BEST:: SOT 24885 SOS 3400 HAS SOPS 3400 HAS SOUS 3318 HAS SOUPS 3318 WITH SCORE 3321.4
AT ITER 2587 NEW BEST:: SOT 24881 SOS 3397 HAS SOPS 3397 HAS SOUS 3315 HAS SOUPS 3315 WITH SCORE 3318.397
AT ITER 2677 NEW BEST:: SOT 24868 SOS 3395 HAS SOPS 3395 HAS SOUS 3313 HAS SOUPS 3313 WITH SCORE 3316.395
AT ITER 2680 NEW BEST:: SOT 24862 SOS 3389 HAS SOPS 3389 HAS SOUS 3307 HAS SOUPS 3307 WITH SCORE 3310.389
AT ITER 2785 NEW BEST:: SOT 24860 SOS 3386 HAS SOPS 3386 HAS SOUS 3304 HAS SOUPS 3304 WITH SCORE 3307.386
AT ITER 2878 NEW BEST:: SOT 24843 SOS 3380 HAS SOPS 3380 HAS SOUS 3298 HAS SOUPS 3298 WITH SCORE 3301.38
AT ITER 2892 NEW BEST:: SOT 24846 SOS 3390 HAS SOPS 3390 HAS SOUS 3297 HAS SOUPS 3297 WITH SCORE 3300.39
AT ITER 2980 NEW BEST:: SOT 24842 SOS 3374 HAS SOPS 3374 HAS SOUS 3285 HAS SOUPS 3285 WITH SCORE 3288.374
AT ITER 2986 NEW BEST:: SOT 24838 SOS 3373 HAS SOPS 3373 HAS SOUS 3284 HAS SOUPS 3284 WITH SCORE 3287.373
AT ITER 2989 NEW BEST:: SOT 24837 SOS 3370 HAS SOPS 3370 HAS SOUS 3281 HAS SOUPS 3281 WITH SCORE 3284.37
AT ITER 2994 NEW BEST:: SOT 24831 SOS 3358 HAS SOPS 3358 HAS SOUS 3269 HAS SOUPS 3269 WITH SCORE 3272.358
AT ITER 3005 NEW BEST:: SOT 24826 SOS 3353 HAS SOPS 3353 HAS SOUS 3264 HAS SOUPS 3264 WITH SCORE 3267.353
AT ITER 3073 NEW BEST:: SOT 24817 SOS 3351 HAS SOPS 3351 HAS SOUS 3262 HAS SOUPS 3262 WITH SCORE 3265.351
AT ITER 3151 NEW BEST:: SOT 24817 SOS 3345 HAS SOPS 3345 HAS SOUS 3256 HAS SOUPS 3256 WITH SCORE 3259.345
AT ITER 3204 NEW BEST:: SOT 24817 SOS 3343 HAS SOPS 3343 HAS SOUS 3254 HAS SOUPS 3254 WITH SCORE 3257.343
AT ITER 3279 NEW BEST:: SOT 24807 SOS 3334 HAS SOPS 3334 HAS SOUS 3245 HAS SOUPS 3245 WITH SCORE 3248.334
AT ITER 3284 NEW BEST:: SOT 24804 SOS 3327 HAS SOPS 3327 HAS SOUS 3238 HAS SOUPS 3238 WITH SCORE 3241.327
AT ITER 3352 NEW BEST:: SOT 24802 SOS 3324 HAS SOPS 3324 HAS SOUS 3235 HAS SOUPS 3235 WITH SCORE 3238.324
AT ITER 3451 NEW BEST:: SOT 24802 SOS 3318 HAS SOPS 3318 HAS SOUS 3229 HAS SOUPS 3229 WITH SCORE 3232.318
AT ITER 3474 NEW BEST:: SOT 24801 SOS 3317 HAS SOPS 3317 HAS SOUS 3228 HAS SOUPS 3228 WITH SCORE 3231.317
AT ITER 3598 NEW BEST:: SOT 24801 SOS 3315 HAS SOPS 3315 HAS SOUS 3226 HAS SOUPS 3226 WITH SCORE 3229.315
AT ITER 3654 NEW BEST:: SOT 24799 SOS 3310 HAS SOPS 3310 HAS SOUS 3221 HAS SOUPS 3221 WITH SCORE 3224.31
AT ITER 3741 NEW BEST:: SOT 24791 SOS 3315 HAS SOPS 3315 HAS SOUS 3219 HAS SOUPS 3219 WITH SCORE 3222.315
AT ITER 3790 NEW BEST:: SOT 24800 SOS 3301 HAS SOPS 3301 HAS SOUS 3219 HAS SOUPS 3219 WITH SCORE 3222.301
AT ITER 3796 NEW BEST:: SOT 24792 SOS 3290 HAS SOPS 3290 HAS SOUS 3208 HAS SOUPS 3208 WITH SCORE 3211.29
AT ITER 4100 NEW BEST:: SOT 24791 SOS 3288 HAS SOPS 3288 HAS SOUS 3206 HAS SOUPS 3206 WITH SCORE 3209.288
AT ITER 4230 NEW BEST:: SOT 24782 SOS 3280 HAS SOPS 3280 HAS SOUS 3194 HAS SOUPS 3194 WITH SCORE 3197.28
AT ITER 4255 NEW BEST:: SOT 24780 SOS 3276 HAS SOPS 3276 HAS SOUS 3190 HAS SOUPS 3190 WITH SCORE 3193.276
AT ITER 4455 NEW BEST:: SOT 24780 SOS 3271 HAS SOPS 3271 HAS SOUS 3185 HAS SOUPS 3185 WITH SCORE 3188.271
AT ITER 4681 NEW BEST:: SOT 24776 SOS 3266 HAS SOPS 3266 HAS SOUS 3180 HAS SOUPS 3180 WITH SCORE 3183.266
AT ITER 4718 NEW BEST:: SOT 24775 SOS 3264 HAS SOPS 3264 HAS SOUS 3178 HAS SOUPS 3178 WITH SCORE 3181.264
AT ITER 4812 NEW BEST:: SOT 24775 SOS 3255 HAS SOPS 3255 HAS SOUS 3177 HAS SOUPS 3177 WITH SCORE 3180.255
AT ITER 4856 NEW BEST:: SOT 24770 SOS 3244 HAS SOPS 3244 HAS SOUS 3166 HAS SOUPS 3166 WITH SCORE 3169.244
AT ITER 4946 NEW BEST:: SOT 24761 SOS 3226 HAS SOPS 3226 HAS SOUS 3159 HAS SOUPS 3159 WITH SCORE 3162.226
CTL Cardinality file is: CTLCardinality.xml
READY TO PARSE. BS
PROPERTY: IBM319-PT-none-CTLCardinality-00 (AF((AX( potential( ( 3 ) <= (tk(P240)) )))))
PROPERTY: IBM319-PT-none-CTLCardinality-01 ( ( (AU( potential( ( 1 ) <= (tk(P124)) ),potential( ( 3 ) <= (tk(P212)) ) )) | (EG( ( potential( (tk(P192)) <= (tk(P140)) ) | potential( ( 1 ) <= (tk(P213)) ) ))) ) & (AX( (AF(potential( (tk(P190)) <= (tk(P133)) ))))) )
PROPERTY: IBM319-PT-none-CTLCardinality-02 (EG( potential( (tk(P211)) <= (tk(P84)) )))
PROPERTY: IBM319-PT-none-CTLCardinality-03 (! ( potential( (tk(P225)) <= (tk(P165)) ) & (AF(( potential( ( 3 ) <= (tk(P96)) ) | potential( ( 1 ) <= (tk(P16)) ) ))) ))
PROPERTY: IBM319-PT-none-CTLCardinality-04 (EF((EX( ( potential( ( 3 ) <= (tk(P229)) ) | potential( ( 2 ) <= (tk(P93)) ) )))))
PROPERTY: IBM319-PT-none-CTLCardinality-05 (AU( ( potential( (tk(P128)) <= (tk(P106)) ) | (! potential( ( 3 ) <= (tk(P40)) )) ),potential( ( 1 ) <= (tk(P194)) ) ))
PROPERTY: IBM319-PT-none-CTLCardinality-06 (AG( (! ( ( potential( ( 2 ) <= (tk(P170)) ) & potential( ( 1 ) <= (tk(P51)) ) ) | ( potential( ( 1 ) <= (tk(P205)) ) & potential( ( 2 ) <= (tk(P124)) ) ) ))))
PROPERTY: IBM319-PT-none-CTLCardinality-07 (! (EF(potential( ( 2 ) <= (tk(P76)) ))))
PROPERTY: IBM319-PT-none-CTLCardinality-08 (AG( (! (EG( potential( ( 2 ) <= (tk(P144)) ))))))
PROPERTY: IBM319-PT-none-CTLCardinality-09 (! (EF((AG( potential( (tk(P197)) <= (tk(P25)) ))))))
PROPERTY: IBM319-PT-none-CTLCardinality-10 (! ( potential( (tk(P113)) <= (tk(P147)) ) & (AG( ( potential( (tk(P167)) <= (tk(P204)) ) | potential( (tk(P42)) <= (tk(P231)) ) ))) ))
PROPERTY: IBM319-PT-none-CTLCardinality-11 (EG( ( (AF(potential( ( 1 ) <= (tk(P238)) ))) | (AG( potential( (tk(P229)) <= (tk(P56)) ))) )))
PROPERTY: IBM319-PT-none-CTLCardinality-12 (AF(( (EG( potential( (tk(P193)) <= (tk(P28)) ))) & (EG( potential( ( 3 ) <= (tk(P151)) ))) )))
PROPERTY: IBM319-PT-none-CTLCardinality-13 (EU( ( ( potential( (tk(P60)) <= (tk(P187)) ) & potential( (tk(P197)) <= (tk(P110)) ) ) | ( potential( (tk(P225)) <= (tk(P236)) ) & potential( (tk(P176)) <= (tk(P106)) ) ) ),(! (! potential( ( 2 ) <= (tk(P197)) ))) ))
PROPERTY: IBM319-PT-none-CTLCardinality-14 ( potential( (tk(P12)) <= (tk(P104)) ) & (EG( (! potential( ( 1 ) <= (tk(P157)) )))) )
PROPERTY: IBM319-PT-none-CTLCardinality-15 ( (! ( ( ( potential( (tk(P146)) <= (tk(P129)) ) & potential( (tk(P163)) <= (tk(P171)) ) ) | potential( ( 2 ) <= (tk(P68)) ) ) | (! (! potential( (tk(P56)) <= (tk(P212)) ))) )) | (EG( potential( (tk(P41)) <= (tk(P171)) ))) )

BK_TIME_CONFINEMENT_REACHED

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

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="IBM319-PT-none"
export BK_EXAMINATION="CTLCardinality"
export BK_TOOL="smart"
export BK_RESULT_DIR="/tmp/BK_RESULTS/OUTPUTS"
export BK_TIME_CONFINEMENT="3600"
export BK_MEMORY_CONFINEMENT="16384"

# 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 smart"
echo " Input is IBM319-PT-none, examination is CTLCardinality"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 1"
echo " Run identifier is r093-oct2-158940140400323"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/IBM319-PT-none.tgz
mv IBM319-PT-none execution
cd execution
if [ "CTLCardinality" = "ReachabilityDeadlock" ] || [ "CTLCardinality" = "UpperBounds" ] || [ "CTLCardinality" = "QuasiLiveness" ] || [ "CTLCardinality" = "StableMarking" ] || [ "CTLCardinality" = "Liveness" ] || [ "CTLCardinality" = "OneSafe" ] || [ "CTLCardinality" = "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 [ "CTLCardinality" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "CTLCardinality" != "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 "CTLCardinality.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property CTLCardinality.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "CTLCardinality.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 '' CTLCardinality.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "CTLCardinality" = "ReachabilityDeadlock" ] || [ "CTLCardinality" = "QuasiLiveness" ] || [ "CTLCardinality" = "StableMarking" ] || [ "CTLCardinality" = "Liveness" ] || [ "CTLCardinality" = "OneSafe" ] ; then
echo "FORMULA_NAME CTLCardinality"
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 ;