Execution Chart

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

Trace from the execution

Formatting '/data/fkordon/mcc2021-input.r106-smll-162075340600038.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2021-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 lola
Input is FlexibleBarrier-PT-10b, examination is StableMarking
Time confinement is 1800 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r106-smll-162075340600038
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 760K
-rw-r--r-- 1 mcc users 11K May 5 16:58 CTLCardinality.txt
-rw-r--r-- 1 mcc users 97K May 10 09:43 CTLCardinality.xml
-rw-r--r-- 1 mcc users 15K May 5 16:58 CTLFireability.txt
-rw-r--r-- 1 mcc users 129K May 10 09:43 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K May 6 14:48 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 3.2K Mar 28 16:11 LTLCardinality.txt
-rw-r--r-- 1 mcc users 23K Mar 28 16:11 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.1K Mar 28 16:11 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K Mar 28 16:11 LTLFireability.xml
-rw-r--r-- 1 mcc users 2.9K Mar 23 11:08 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 13K Mar 23 11:08 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 2.8K Mar 22 19:26 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 17K Mar 22 19:26 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K Mar 22 09:15 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K Mar 22 09:15 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 May 5 16:51 equiv_col
-rw-r--r-- 1 mcc users 4 May 5 16:51 instance
-rw-r--r-- 1 mcc users 6 May 5 16:51 iscolored
-rw-r--r-- 1 mcc users 374K May 5 16:51 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 1622902800019

starting LoLA
BK_INPUT FlexibleBarrier-PT-10b
BK_EXAMINATION: StableMarking
bin directory: /home/mcc/BenchKit/bin
current directory: /home/mcc/execution
GlobalProperty: StableMarking

FORMULA StableMarking FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

BK_STOP 1622902941057

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

lola: MEM LIMIT 32
lola: MEM LIMIT 5
lola: NET
lola: input: PNML file (--pnmlnet)
lola: reading net from /home/mcc/execution/model.pnml
lola: reading pnml
lola: PNML file contains place/transition net
lola: finished parsing
lola: closed net file /home/mcc/execution/model.pnml
lola: STATE EQUATION TRIES PLACE p121
lola: LAUNCH SYMM
sara: try reading problem file stateEquationProblem-ConstantPlace-31.sara.
sara: place or transition ordering is non-deterministic

lola: STATE EQUATION TRIES PLACE p143
sara: try reading problem file stateEquationProblem-ConstantPlace-53.sara.
sara: place or transition ordering is non-deterministic

lola: STATE EQUATION TRIES PLACE p84
sara: try reading problem file stateEquationProblem-ConstantPlace-1386.sara.
sara: place or transition ordering is non-deterministic

lola: STATE EQUATION TRIES PLACE p333
sara: try reading problem file stateEquationProblem-ConstantPlace-243.sara.
sara: place or transition ordering is non-deterministic
lola: reporting
lola: not produced: 364
lola: state equation: 3
lola: find path: 491
lola: goal oriented search: 171
lola: symmetry: 373

lola: STATE EQUATION TRIES PLACE p1371
sara: try reading problem file stateEquationProblem-ConstantPlace-981.sara.
sara: place or transition ordering is non-deterministic

lola: STATE EQUATION TRIES PLACE p176
sara: try reading problem file stateEquationProblem-ConstantPlace-86.sara.
sara: place or transition ordering is non-deterministic

lola: STATE EQUATION TRIES PLACE p1332
sara: try reading problem file stateEquationProblem-ConstantPlace-942.sara.
sara: place or transition ordering is non-deterministic

lola: STATE EQUATION TRIES PLACE p1297
sara: try reading problem file stateEquationProblem-ConstantPlace-807.sara.
sara: place or transition ordering is non-deterministic

lola: STATE EQUATION TRIES PLACE p1192
sara: try reading problem file stateEquationProblem-ConstantPlace-602.sara.
lola: reporting
lola: not produced: 217
lola: state equation: 8
lola: find path: 558
lola: goal oriented search: 178
lola: symmetry: 441
sara: place or transition ordering is non-deterministic

lola: STATE EQUATION TRIES PLACE p1361
sara: try reading problem file stateEquationProblem-ConstantPlace-971.sara.
sara: place or transition ordering is non-deterministic
lola: reporting
lola: not produced: 170
lola: state equation: 9
lola: find path: 585
lola: goal oriented search: 178
lola: symmetry: 460
lola: reporting
lola: not produced: 160
lola: state equation: 9
lola: find path: 591
lola: goal oriented search: 178
lola: symmetry: 464
lola: reporting
lola: not produced: 126
lola: state equation: 9
lola: find path: 612
lola: goal oriented search: 178
lola: symmetry: 477
lola: reporting
lola: not produced: 126
lola: state equation: 9
lola: find path: 612
lola: goal oriented search: 178
lola: symmetry: 477

lola: STATE EQUATION TRIES PLACE p700
sara: try reading problem file stateEquationProblem-ConstantPlace-1010.sara.
sara: place or transition ordering is non-deterministic

lola: STATE EQUATION TRIES PLACE p1334
sara: try reading problem file stateEquationProblem-ConstantPlace-944.sara.
sara: place or transition ordering is non-deterministic

lola: STATE EQUATION TRIES PLACE p544
sara: try reading problem file stateEquationProblem-ConstantPlace-654.sara.
lola: reporting
lola: not produced: 111
lola: state equation: 12
lola: find path: 619
lola: goal oriented search: 178
lola: symmetry: 482
sara: place or transition ordering is non-deterministic

lola: STATE EQUATION TRIES PLACE p1176
sara: try reading problem file stateEquationProblem-ConstantPlace-586.sara.
sara: place or transition ordering is non-deterministic

lola: STATE EQUATION TRIES PLACE p890
sara: try reading problem file stateEquationProblem-ConstantPlace-1202.sara.
sara: place or transition ordering is non-deterministic

lola: STATE EQUATION TRIES PLACE p932
sara: try reading problem file stateEquationProblem-ConstantPlace-1244.sara.
sara: place or transition ordering is non-deterministic

lola: STATE EQUATION TRIES PLACE p874
sara: try reading problem file stateEquationProblem-ConstantPlace-1186.sara.
sara: place or transition ordering is non-deterministic
lola: reporting
lola: not produced: 101
lola: state equation: 16
lola: find path: 623
lola: goal oriented search: 178
lola: symmetry: 484

lola: STATE EQUATION TRIES PLACE p288
sara: try reading problem file stateEquationProblem-ConstantPlace-198.sara.
sara: place or transition ordering is non-deterministic

lola: STATE EQUATION TRIES PLACE p1336
sara: try reading problem file stateEquationProblem-ConstantPlace-946.sara.
sara: place or transition ordering is non-deterministic

lola: STATE EQUATION TRIES PLACE p400
sara: try reading problem file stateEquationProblem-ConstantPlace-410.sara.
sara: place or transition ordering is non-deterministic

lola: STATE EQUATION TRIES PLACE p1393
sara: try reading problem file stateEquationProblem-ConstantPlace-1003.sara.
sara: place or transition ordering is non-deterministic

lola: reporting
lola: not produced: 87
lola: state equation: 20
lola: find path: 628
lola: goal oriented search: 178
lola: symmetry: 489
lola: STATE EQUATION TRIES PLACE p889
sara: try reading problem file stateEquationProblem-ConstantPlace-1201.sara.
sara: place or transition ordering is non-deterministic

lola: STATE EQUATION TRIES PLACE p687
sara: try reading problem file stateEquationProblem-ConstantPlace-897.sara.
sara: place or transition ordering is non-deterministic
lola: reporting
lola: not produced: 79
lola: state equation: 22
lola: find path: 632
lola: goal oriented search: 178
lola: symmetry: 491

lola: STATE EQUATION TRIES PLACE p189
sara: try reading problem file stateEquationProblem-ConstantPlace-99.sara.
sara: place or transition ordering is non-deterministic

lola: STATE EQUATION TRIES PLACE p788
sara: try reading problem file stateEquationProblem-ConstantPlace-1098.sara.
sara: place or transition ordering is non-deterministic
lola: reporting
lola: not produced: 64
lola: state equation: 24
lola: find path: 641
lola: goal oriented search: 178
lola: symmetry: 495

lola: STATE EQUATION TRIES PLACE p1382
sara: try reading problem file stateEquationProblem-ConstantPlace-992.sara.
sara: place or transition ordering is non-deterministic

lola: STATE EQUATION TRIES PLACE p284
sara: try reading problem file stateEquationProblem-ConstantPlace-194.sara.
sara: place or transition ordering is non-deterministic

lola: STATE EQUATION TRIES PLACE p1391
sara: try reading problem file stateEquationProblem-ConstantPlace-1001.sara.
sara: place or transition ordering is non-deterministic
lola: reporting
lola: not produced: 60
lola: state equation: 27
lola: find path: 641
lola: goal oriented search: 178
lola: symmetry: 496

lola: STATE EQUATION TRIES PLACE p887
sara: try reading problem file stateEquationProblem-ConstantPlace-1199.sara.
sara: place or transition ordering is non-deterministic
lola: reporting
lola: not produced: 59
lola: state equation: 28
lola: find path: 641
lola: goal oriented search: 178
lola: symmetry: 496

lola: STATE EQUATION TRIES PLACE p490
sara: try reading problem file stateEquationProblem-ConstantPlace-500.sara.
sara: place or transition ordering is non-deterministic

lola: STATE EQUATION TRIES PLACE p944
sara: try reading problem file stateEquationProblem-ConstantPlace-1256.sara.
lola: reporting
lola: not produced: 56
lola: state equation: 30
lola: find path: 642
lola: goal oriented search: 178
lola: symmetry: 496
sara: place or transition ordering is non-deterministic

lola: STATE EQUATION TRIES PLACE p487
sara: try reading problem file stateEquationProblem-ConstantPlace-497.sara.
sara: place or transition ordering is non-deterministic
lola: reporting
lola: not produced: 53
lola: state equation: 31
lola: find path: 643
lola: goal oriented search: 178
lola: symmetry: 497

lola: STATE EQUATION TRIES PLACE p904
sara: try reading problem file stateEquationProblem-ConstantPlace-1216.sara.
sara: place or transition ordering is non-deterministic

lola: STATE EQUATION TRIES PLACE p399
sara: try reading problem file stateEquationProblem-ConstantPlace-309.sara.
sara: place or transition ordering is non-deterministic

lola: STATE EQUATION TRIES PLACE p969
sara: try reading problem file stateEquationProblem-ConstantPlace-1291.sara.
lola: reporting
lola: not produced: 49
lola: state equation: 34
lola: find path: 643
lola: goal oriented search: 178
lola: symmetry: 498
sara: place or transition ordering is non-deterministic

lola: STATE EQUATION TRIES PLACE p742
sara: try reading problem file stateEquationProblem-ConstantPlace-1052.sara.
sara: place or transition ordering is non-deterministic

lola: STATE EQUATION TRIES PLACE p589
sara: try reading problem file stateEquationProblem-ConstantPlace-699.sara.
sara: place or transition ordering is non-deterministic

lola: STATE EQUATION TRIES PLACE p387
sara: try reading problem file stateEquationProblem-ConstantPlace-297.sara.
sara: place or transition ordering is non-deterministic
lola: reporting
lola: not produced: 43
lola: state equation: 37
lola: find path: 645
lola: goal oriented search: 178
lola: symmetry: 499

lola: STATE EQUATION TRIES PLACE p287
sara: try reading problem file stateEquationProblem-ConstantPlace-197.sara.
sara: place or transition ordering is non-deterministic
lola: reporting
lola: not produced: 42
lola: state equation: 38
lola: find path: 645
lola: goal oriented search: 178
lola: symmetry: 499

lola: STATE EQUATION TRIES PLACE p1380
sara: try reading problem file stateEquationProblem-ConstantPlace-990.sara.
sara: place or transition ordering is non-deterministic

lola: STATE EQUATION TRIES PLACE p684
sara: try reading problem file stateEquationProblem-ConstantPlace-894.sara.
lola: reporting
lola: not produced: 40
lola: state equation: 40
lola: find path: 645
lola: goal oriented search: 178
lola: symmetry: 499
sara: place or transition ordering is non-deterministic

lola: STATE EQUATION TRIES PLACE p484
sara: try reading problem file stateEquationProblem-ConstantPlace-494.sara.
sara: place or transition ordering is non-deterministic

lola: STATE EQUATION TRIES PLACE p389
sara: try reading problem file stateEquationProblem-ConstantPlace-299.sara.
sara: place or transition ordering is non-deterministic

lola: STATE EQUATION TRIES PLACE p300
sara: try reading problem file stateEquationProblem-ConstantPlace-210.sara.
sara: place or transition ordering is non-deterministic

lola: STATE EQUATION TRIES PLACE p784
sara: try reading problem file stateEquationProblem-ConstantPlace-1094.sara.
sara: place or transition ordering is non-deterministic

lola: STATE EQUATION TRIES PLACE p188
sara: try reading problem file stateEquationProblem-ConstantPlace-98.sara.
lola: reporting
lola: not produced: 35
lola: state equation: 45
lola: find path: 645
lola: goal oriented search: 178
lola: symmetry: 499
sara: place or transition ordering is non-deterministic

lola: STATE EQUATION TRIES PLACE p1381
sara: try reading problem file stateEquationProblem-ConstantPlace-991.sara.
sara: place or transition ordering is non-deterministic

lola: STATE EQUATION TRIES PLACE p199
sara: try reading problem file stateEquationProblem-ConstantPlace-109.sara.
sara: place or transition ordering is non-deterministic

lola: STATE EQUATION TRIES PLACE p299
sara: try reading problem file stateEquationProblem-ConstantPlace-209.sara.
sara: place or transition ordering is non-deterministic

lola: STATE EQUATION TRIES PLACE p741
sara: try reading problem file stateEquationProblem-ConstantPlace-1051.sara.
sara: place or transition ordering is non-deterministic
lola: reporting
lola: not produced: 30
lola: state equation: 49
lola: find path: 645
lola: goal oriented search: 178
lola: symmetry: 500

lola: STATE EQUATION TRIES PLACE p290
sara: try reading problem file stateEquationProblem-ConstantPlace-200.sara.
sara: place or transition ordering is non-deterministic

lola: STATE EQUATION TRIES PLACE p88
sara: try reading problem file stateEquationProblem-ConstantPlace-1351.sara.
sara: place or transition ordering is non-deterministic

lola: STATE EQUATION TRIES PLACE p488
sara: try reading problem file stateEquationProblem-ConstantPlace-498.sara.
sara: place or transition ordering is non-deterministic

lola: STATE EQUATION TRIES PLACE p958
sara: try reading problem file stateEquationProblem-ConstantPlace-1270.sara.
lola: reporting
lola: not produced: 25
lola: state equation: 53
lola: find path: 645
lola: goal oriented search: 178
lola: symmetry: 501
sara: place or transition ordering is non-deterministic

lola: STATE EQUATION TRIES PLACE p957
sara: try reading problem file stateEquationProblem-ConstantPlace-1269.sara.
sara: place or transition ordering is non-deterministic
lola: reporting
lola: not produced: 24
lola: state equation: 54
lola: find path: 645
lola: goal oriented search: 178
lola: symmetry: 501

lola: STATE EQUATION TRIES PLACE p970
sara: try reading problem file stateEquationProblem-ConstantPlace-1302.sara.
sara: place or transition ordering is non-deterministic

lola: STATE EQUATION TRIES PLACE p500
sara: try reading problem file stateEquationProblem-ConstantPlace-610.sara.
sara: place or transition ordering is non-deterministic

lola: STATE EQUATION TRIES PLACE p787
sara: try reading problem file stateEquationProblem-ConstantPlace-1097.sara.
sara: place or transition ordering is non-deterministic
lola: reporting
lola: not produced: 21
lola: state equation: 57
lola: find path: 645
lola: goal oriented search: 178
lola: symmetry: 501

lola: STATE EQUATION TRIES PLACE p905
sara: try reading problem file stateEquationProblem-ConstantPlace-1217.sara.
sara: place or transition ordering is non-deterministic

lola: STATE EQUATION TRIES PLACE p384
sara: try reading problem file stateEquationProblem-ConstantPlace-294.sara.
sara: place or transition ordering is non-deterministic

lola: STATE EQUATION TRIES PLACE p959
sara: try reading problem file stateEquationProblem-ConstantPlace-1271.sara.
lola: reporting
lola: not produced: 17
lola: state equation: 60
lola: find path: 645
lola: goal oriented search: 178
lola: symmetry: 502
sara: place or transition ordering is non-deterministic

lola: STATE EQUATION TRIES PLACE p900
sara: try reading problem file stateEquationProblem-ConstantPlace-1212.sara.
sara: place or transition ordering is non-deterministic

lola: STATE EQUATION TRIES PLACE p489
sara: try reading problem file stateEquationProblem-ConstantPlace-499.sara.
sara: place or transition ordering is non-deterministic

lola: STATE EQUATION TRIES PLACE p699
sara: try reading problem file stateEquationProblem-ConstantPlace-909.sara.
sara: place or transition ordering is non-deterministic

lola: STATE EQUATION TRIES PLACE p100
sara: try reading problem file stateEquationProblem-ConstantPlace-10.sara.
sara: place or transition ordering is non-deterministic

lola: STATE EQUATION TRIES PLACE p1335
sara: try reading problem file stateEquationProblem-ConstantPlace-945.sara.
lola: reporting
lola: not produced: 11
lola: state equation: 65
lola: find path: 645
lola: goal oriented search: 178
lola: symmetry: 503
sara: place or transition ordering is non-deterministic

lola: STATE EQUATION TRIES PLACE p187
sara: try reading problem file stateEquationProblem-ConstantPlace-97.sara.
sara: place or transition ordering is non-deterministic

lola: STATE EQUATION TRIES PLACE p689
sara: try reading problem file stateEquationProblem-ConstantPlace-899.sara.
sara: place or transition ordering is non-deterministic

lola: STATE EQUATION TRIES PLACE p388
sara: try reading problem file stateEquationProblem-ConstantPlace-298.sara.
sara: place or transition ordering is non-deterministic

lola: STATE EQUATION TRIES PLACE p289
sara: try reading problem file stateEquationProblem-ConstantPlace-199.sara.
lola: reporting
lola: not produced: 6
lola: state equation: 69
lola: find path: 645
lola: goal oriented search: 178
lola: symmetry: 504
sara: place or transition ordering is non-deterministic

lola: STATE EQUATION TRIES PLACE p688
sara: try reading problem file stateEquationProblem-ConstantPlace-898.sara.
sara: place or transition ordering is non-deterministic

lola: STATE EQUATION TRIES PLACE p899
sara: try reading problem file stateEquationProblem-ConstantPlace-1211.sara.
sara: place or transition ordering is non-deterministic

lola: STATE EQUATION TRIES PLACE p499
sara: try reading problem file stateEquationProblem-ConstantPlace-509.sara.
sara: place or transition ordering is non-deterministic

lola: STATE EQUATION TRIES PLACE p884
sara: try reading problem file stateEquationProblem-ConstantPlace-1196.sara.
sara: place or transition ordering is non-deterministic

lola: STATE EQUATION TRIES PLACE p584
sara: try reading problem file stateEquationProblem-ConstantPlace-694.sara.
lola: reporting
lola: not produced: 1
lola: state equation: 74
lola: find path: 645
lola: goal oriented search: 178
lola: symmetry: 504
sara: place or transition ordering is non-deterministic

lola: The net does not have constant places

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="FlexibleBarrier-PT-10b"
export BK_EXAMINATION="StableMarking"
export BK_TOOL="lola"
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 2-4028"
echo " Executing tool lola"
echo " Input is FlexibleBarrier-PT-10b, 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 r106-smll-162075340600038"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/FlexibleBarrier-PT-10b.tgz
mv FlexibleBarrier-PT-10b 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 ;