fond
Model Checking Contest 2023
13th edition, Paris, France, April 26, 2023 (at TOOLympics II)
Execution of r486-tall-167912701400573
Last Updated
May 14, 2023

About the Execution of LoLA for TokenRing-COL-005

Execution Summary
Max Memory
Used (MB)
Time wait (ms) CPU Usage (ms) I/O Wait (ms) Computed Result Execution
Status
54.455 489.00 100.00 0.00 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 normal

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.r486-tall-167912701400573.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)
............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
=====================================================================
Generated by BenchKit 2-5348
Executing tool lola
Input is TokenRing-COL-005, examination is UpperBounds
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r486-tall-167912701400573
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 556K
-rw-r--r-- 1 mcc users 9.4K Feb 25 14:44 CTLCardinality.txt
-rw-r--r-- 1 mcc users 105K Feb 25 14:44 CTLCardinality.xml
-rw-r--r-- 1 mcc users 6.1K Feb 25 14:43 CTLFireability.txt
-rw-r--r-- 1 mcc users 45K Feb 25 14:43 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Jan 29 11:41 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 3.8K Feb 25 17:20 LTLCardinality.txt
-rw-r--r-- 1 mcc users 26K Feb 25 17:20 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.6K Feb 25 17:20 LTLFireability.txt
-rw-r--r-- 1 mcc users 19K Feb 25 17:20 LTLFireability.xml
-rw-r--r-- 1 mcc users 12K Feb 25 14:45 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 115K Feb 25 14:45 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 17K Feb 25 14:44 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 135K Feb 25 14:44 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K Feb 25 17:20 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K Feb 25 17:20 UpperBounds.xml
-rw-r--r-- 1 mcc users 5 Mar 5 18:23 equiv_pt
-rw-r--r-- 1 mcc users 4 Mar 5 18:23 instance
-rw-r--r-- 1 mcc users 5 Mar 5 18:23 iscolored
-rw-r--r-- 1 mcc users 11K 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 positive values
NUM_VECTOR

here is the order used to build the result vector(from text file)
FORMULA_NAME TokenRing-COL-005-UpperBounds-00
FORMULA_NAME TokenRing-COL-005-UpperBounds-01
FORMULA_NAME TokenRing-COL-005-UpperBounds-02
FORMULA_NAME TokenRing-COL-005-UpperBounds-03
FORMULA_NAME TokenRing-COL-005-UpperBounds-04
FORMULA_NAME TokenRing-COL-005-UpperBounds-05
FORMULA_NAME TokenRing-COL-005-UpperBounds-06
FORMULA_NAME TokenRing-COL-005-UpperBounds-07
FORMULA_NAME TokenRing-COL-005-UpperBounds-08
FORMULA_NAME TokenRing-COL-005-UpperBounds-09
FORMULA_NAME TokenRing-COL-005-UpperBounds-10
FORMULA_NAME TokenRing-COL-005-UpperBounds-11
FORMULA_NAME TokenRing-COL-005-UpperBounds-12
FORMULA_NAME TokenRing-COL-005-UpperBounds-13
FORMULA_NAME TokenRing-COL-005-UpperBounds-14
FORMULA_NAME TokenRing-COL-005-UpperBounds-15

=== Now, execution of the tool begins

BK_START 1679232960917

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=lola
BK_EXAMINATION=UpperBounds
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=TokenRing-COL-005
Not applying reductions.
Model is COL
UpperBounds COL
starting LoLA
BK_INPUT TokenRing-COL-005
BK_EXAMINATION: UpperBounds
bin directory: /home/mcc/BenchKit/bin//../lola/bin/
current directory: /home/mcc/execution
Upper Bounds

FORMULA TokenRing-COL-005-UpperBounds-02 6 TECHNIQUES SEQUENTIAL_PROCESSING TOPOLOGICAL EXPLICIT STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA TokenRing-COL-005-UpperBounds-08 6 TECHNIQUES SEQUENTIAL_PROCESSING TOPOLOGICAL EXPLICIT STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA TokenRing-COL-005-UpperBounds-11 6 TECHNIQUES SEQUENTIAL_PROCESSING TOPOLOGICAL EXPLICIT STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA TokenRing-COL-005-UpperBounds-07 6 TECHNIQUES SEQUENTIAL_PROCESSING TOPOLOGICAL EXPLICIT STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA TokenRing-COL-005-UpperBounds-10 6 TECHNIQUES SEQUENTIAL_PROCESSING TOPOLOGICAL EXPLICIT STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA TokenRing-COL-005-UpperBounds-12 6 TECHNIQUES SEQUENTIAL_PROCESSING TOPOLOGICAL EXPLICIT STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA TokenRing-COL-005-UpperBounds-14 6 TECHNIQUES SEQUENTIAL_PROCESSING TOPOLOGICAL EXPLICIT STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA TokenRing-COL-005-UpperBounds-06 6 TECHNIQUES SEQUENTIAL_PROCESSING TOPOLOGICAL EXPLICIT STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA TokenRing-COL-005-UpperBounds-04 6 TECHNIQUES SEQUENTIAL_PROCESSING TOPOLOGICAL EXPLICIT STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA TokenRing-COL-005-UpperBounds-03 6 TECHNIQUES SEQUENTIAL_PROCESSING TOPOLOGICAL EXPLICIT STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA TokenRing-COL-005-UpperBounds-15 6 TECHNIQUES SEQUENTIAL_PROCESSING TOPOLOGICAL EXPLICIT STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA TokenRing-COL-005-UpperBounds-05 6 TECHNIQUES SEQUENTIAL_PROCESSING TOPOLOGICAL EXPLICIT STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA TokenRing-COL-005-UpperBounds-09 6 TECHNIQUES SEQUENTIAL_PROCESSING TOPOLOGICAL EXPLICIT STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA TokenRing-COL-005-UpperBounds-13 6 TECHNIQUES SEQUENTIAL_PROCESSING TOPOLOGICAL EXPLICIT STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA TokenRing-COL-005-UpperBounds-00 6 TECHNIQUES SEQUENTIAL_PROCESSING TOPOLOGICAL EXPLICIT STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA TokenRing-COL-005-UpperBounds-01 6 TECHNIQUES SEQUENTIAL_PROCESSING TOPOLOGICAL EXPLICIT STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

BK_STOP 1679232961406

--------------------
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 High-Level net
lola: finished parsing
lola: closed net file /home/mcc/execution/model.pnml
lola: Reading HL formula in XML format (--xmlformula)
lola: reading formula from /home/mcc/execution/UpperBounds.xml
lola: TR BINDINGS
lola: TR BINDINGS DONE
lola: Places: 36, Transitions: 156
lola: @ trans MainProcess
lola: @ trans OtherProcess
lola: Rule S: 0 transitions removed,0 places removed
lola: LAUNCH task # 53 (type EXCL) for 6 TokenRing-COL-005-UpperBounds-02
lola: time limit : 224 sec
lola: memory limit: 32 pages
lola: LAUNCH task # 48 (type FNDP) for 6 TokenRing-COL-005-UpperBounds-02
lola: time limit : 32000000 sec
lola: memory limit: 5 pages
lola: LAUNCH task # 49 (type FNDP) for 24 TokenRing-COL-005-UpperBounds-08
lola: time limit : 32000000 sec
lola: memory limit: 5 pages
lola: LAUNCH task # 50 (type EQUN) for 24 TokenRing-COL-005-UpperBounds-08
lola: time limit : 32000000 sec
lola: memory limit: 5 pages
lola: Structural Bound: 6
lola: REPORT NUM
lola: FINISHED task # 53 (type EXCL) for TokenRing-COL-005-UpperBounds-02
lola: time used : 0.000000
lola: memory pages used : 1
lola: CANCELED task # 48 (type FNDP) for TokenRing-COL-005-UpperBounds-02 (obsolete)
lola: LAUNCH task # 92 (type EXCL) for 33 TokenRing-COL-005-UpperBounds-11
lola: time limit : 239 sec
lola: memory limit: 32 pages
lola: LAUNCH task # 54 (type FNDP) for 21 TokenRing-COL-005-UpperBounds-07
lola: time limit : 32000000 sec
lola: memory limit: 5 pages
lola: REPORT NUM
lola: FINISHED task # 49 (type FNDP) for TokenRing-COL-005-UpperBounds-08
lola: tried executions : 1
lola: time used : 0.000000
lola: REPORT NUM
lola: FINISHED task # 48 (type FNDP) for TokenRing-COL-005-UpperBounds-02
lola: tried executions : 1
lola: time used : 0.000000
lola: CANCELED task # 50 (type EQUN) for TokenRing-COL-005-UpperBounds-08 (obsolete)
lola: LAUNCH task # 57 (type FNDP) for 30 TokenRing-COL-005-UpperBounds-10
lola: time limit : 32000000 sec
lola: memory limit: 5 pages
lola: LAUNCH task # 58 (type EQUN) for 30 TokenRing-COL-005-UpperBounds-10
lola: time limit : 32000000 sec
lola: memory limit: 5 pages
lola: Structural Bound: 6
lola: REPORT NUM
lola: FINISHED task # 92 (type EXCL) for TokenRing-COL-005-UpperBounds-11
lola: time used : 0.000000
lola: memory pages used : 1
lola: LAUNCH task # 95 (type EXCL) for 36 TokenRing-COL-005-UpperBounds-12
lola: time limit : 276 sec
lola: memory limit: 32 pages
sara: try reading problem file /home/mcc/execution/UpperBounds-50.sara.
lola: REPORT NUM
lola: FINISHED task # 54 (type FNDP) for TokenRing-COL-005-UpperBounds-07
lola: tried executions : 1
lola: time used : 0.000000
lola: LAUNCH task # 60 (type FNDP) for 18 TokenRing-COL-005-UpperBounds-06
lola: time limit : 32000000 sec
lola: memory limit: 5 pages
lola: REPORT NUM
lola: FINISHED task # 57 (type FNDP) for TokenRing-COL-005-UpperBounds-10
lola: tried executions : 1
lola: time used : 0.000000
lola: CANCELED task # 58 (type EQUN) for TokenRing-COL-005-UpperBounds-10 (obsolete)
lola: LAUNCH task # 62 (type FNDP) for 12 TokenRing-COL-005-UpperBounds-04
lola: time limit : 32000000 sec
lola: memory limit: 5 pagessara: place or transition ordering is non-deterministic

lola: LAUNCH task # 63 (type EQUN) for 12 TokenRing-COL-005-UpperBounds-04
lola: time limit : 32000000 sec
lola: memory limit: 5 pages
lola: Structural Bound: 6
lola: REPORT NUM
lola: FINISHED task # 95 (type EXCL) for TokenRing-COL-005-UpperBounds-12
lola: time used : 0.000000
lola: memory pages used : 1

lola: LAUNCH task # 89 (type EXCL) for 42 TokenRing-COL-005-UpperBounds-14
lola: time limit : 359 sec
lola: memory limit: 32 pages
lola: Structural Bound: 6
lola: REPORT NUM
lola: FINISHED task # 89 (type EXCL) for TokenRing-COL-005-UpperBounds-14
lola: time used : 0.000000
lola: memory pages used : 1
lola: LAUNCH task # 86 (type EXCL) for 45 TokenRing-COL-005-UpperBounds-15
lola: time limit : 399 sec
lola: memory limit: 32 pages
lola: REPORT NUM
lola: FINISHED task # 50 (type EQUN) for TokenRing-COL-005-UpperBounds-08
lola: time used : 0.000000
lola: REPORT NUM
lola: FINISHED task # 60 (type FNDP) for TokenRing-COL-005-UpperBounds-06
lola: tried executions : 1
lola: time used : 0.000000
lola: REPORT NUM
lola: LAUNCH task # 65 (type FNDP) for 15 TokenRing-COL-005-UpperBounds-05
lola: time limit : 32000000 sec
lola: memory limit: 5 pages
lola: FINISHED task # 62 (type FNDP) for TokenRing-COL-005-UpperBounds-04
lola: tried executions : 1
lola: time used : 0.000000
lola: CANCELED task # 63 (type EQUN) for TokenRing-COL-005-UpperBounds-04 (obsolete)
lola: LAUNCH task # 68 (type FNDP) for 9 TokenRing-COL-005-UpperBounds-03
lola: time limit : 32000000 sec
lola: memory limit: 5 pages
lola: LAUNCH task # 69 (type EQUN) for 9 TokenRing-COL-005-UpperBounds-03
lola: time limit : 32000000 sec
lola: memory limit: 5 pages
sara: try reading problem file /home/mcc/execution/UpperBounds-58.sara.
sara: try reading problem file /home/mcc/execution/UpperBounds-63.sara.
lola: REPORT NUM
lola: FINISHED task # 68 (type FNDP) for TokenRing-COL-005-UpperBounds-03
lola: tried executions : 1
lola: time used : 0.000000
lola: Structural Bound: 6
lola: REPORT NUM
lola: CANCELED task # 69 (type EQUN) for TokenRing-COL-005-UpperBounds-03 (obsolete)
lola: LAUNCH task # 72 (type FNDP) for 0 TokenRing-COL-005-UpperBounds-00
lola: time limit : 32000000 sec
lola: memory limit: 5 pages
lola: LAUNCH task # 73 (type EQUN) for 0 TokenRing-COL-005-UpperBounds-00
lola: time limit : 32000000 sec
lola: memory limit: 5 pages
lola: FINISHED task # 86 (type EXCL) for TokenRing-COL-005-UpperBounds-15
lola: time used : 0.000000
lola: memory pages used : 1
lola: LAUNCH task # 83 (type EXCL) for 39 TokenRing-COL-005-UpperBounds-13
lola: time limit : 719 sec
lola: memory limit: 32 pages
sara: place or transition ordering is non-deterministic
sara: place or transition ordering is non-deterministic
lola: REPORT NUM
lola: FINISHED task # 65 (type FNDP) for TokenRing-COL-005-UpperBounds-05
lola: tried executions : 1
lola: time used : 0.000000
lola: LAUNCH task # 75 (type FNDP) for 27 TokenRing-COL-005-UpperBounds-09
lola: time limit : 32000000 sec
lola: memory limit: 5 pages


sara: try reading problem file /home/mcc/execution/UpperBounds-69.sara.
lola: Structural Bound: 6
lola: REPORT NUM
lola: FINISHED task # 83 (type EXCL) for TokenRing-COL-005-UpperBounds-13
lola: time used : 0.000000
lola: memory pages used : 1
lola: REPORT NUM
lola: FINISHED task # 75 (type FNDP) for TokenRing-COL-005-UpperBounds-09
lola: tried executions : 1
lola: time used : 0.000000
lola: LAUNCH task # 80 (type EXCL) for 3 TokenRing-COL-005-UpperBounds-01
lola: time limit : 1799 sec
lola: memory limit: 32 pages
lola: LAUNCH task # 78 (type FNDP) for 3 TokenRing-COL-005-UpperBounds-01
lola: time limit : 32000000 sec
lola: memory limit: 5 pages
lola: REPORT NUM
lola: FINISHED task # 63 (type EQUN) for TokenRing-COL-005-UpperBounds-04
lola: time used : 0.000000
sara: place or transition ordering is non-deterministic

lola: REPORT NUM
lola: FINISHED task # 58 (type EQUN) for TokenRing-COL-005-UpperBounds-10
lola: time used : 0.000000
lola: Structural Bound: 6
lola: REPORT NUM
lola: FINISHED task # 80 (type EXCL) for TokenRing-COL-005-UpperBounds-01
lola: time used : 0.000000
lola: memory pages used : 1
lola: REPORT NUM
lola: FINISHED task # 69 (type EQUN) for TokenRing-COL-005-UpperBounds-03
lola: time used : 0.000000
lola: REPORT NUM
lola: FINISHED task # 72 (type FNDP) for TokenRing-COL-005-UpperBounds-00
lola: tried executions : 1
lola: time used : 0.000000
lola: CANCELED task # 73 (type EQUN) for TokenRing-COL-005-UpperBounds-00 (obsolete)
lola: CANCELED task # 78 (type FNDP) for TokenRing-COL-005-UpperBounds-01 (obsolete)
lola: Portfolio finished: no open formulas

FINAL RESULTS
FINISHED FORMULA: CATEGORY VALUE PRODUCED BY
TokenRing-COL-005-UpperBounds-00: BOUND 6 findpath
TokenRing-COL-005-UpperBounds-01: BOUND 6 state space
TokenRing-COL-005-UpperBounds-02: BOUND 6 state space
TokenRing-COL-005-UpperBounds-03: BOUND 6 findpath
TokenRing-COL-005-UpperBounds-04: BOUND 6 findpath
TokenRing-COL-005-UpperBounds-05: BOUND 6 findpath
TokenRing-COL-005-UpperBounds-06: BOUND 6 findpath
TokenRing-COL-005-UpperBounds-07: BOUND 6 findpath
TokenRing-COL-005-UpperBounds-08: BOUND 6 findpath
TokenRing-COL-005-UpperBounds-09: BOUND 6 findpath
TokenRing-COL-005-UpperBounds-10: BOUND 6 findpath
TokenRing-COL-005-UpperBounds-11: BOUND 6 state space
TokenRing-COL-005-UpperBounds-12: BOUND 6 state space
TokenRing-COL-005-UpperBounds-13: BOUND 6 state space
TokenRing-COL-005-UpperBounds-14: BOUND 6 state space
TokenRing-COL-005-UpperBounds-15: BOUND 6 state space


Time elapsed: 1 secs. Pages in use: 1

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="TokenRing-COL-005"
export BK_EXAMINATION="UpperBounds"
export BK_TOOL="lola"
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 lola"
echo " Input is TokenRing-COL-005, examination is UpperBounds"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r486-tall-167912701400573"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/TokenRing-COL-005.tgz
mv TokenRing-COL-005 execution
cd execution
if [ "UpperBounds" = "ReachabilityDeadlock" ] || [ "UpperBounds" = "UpperBounds" ] || [ "UpperBounds" = "QuasiLiveness" ] || [ "UpperBounds" = "StableMarking" ] || [ "UpperBounds" = "Liveness" ] || [ "UpperBounds" = "OneSafe" ] || [ "UpperBounds" = "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 [ "UpperBounds" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "UpperBounds" != "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 "UpperBounds.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property UpperBounds.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "UpperBounds.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 '' UpperBounds.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "UpperBounds" = "ReachabilityDeadlock" ] || [ "UpperBounds" = "QuasiLiveness" ] || [ "UpperBounds" = "StableMarking" ] || [ "UpperBounds" = "Liveness" ] || [ "UpperBounds" = "OneSafe" ] ; then
echo "FORMULA_NAME UpperBounds"
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 ;