Execution Chart

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

Trace from the execution

Formatting '/data/fkordon/mcc2024-input.r136-tall-171631133200694.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2024-input.qcow2 backing_fmt=qcow2 cluster_size=65536 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
...........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
=====================================================================
Generated by BenchKit 2-5568
Executing tool itstools
Input is DrinkVendingMachine-COL-76, examination is ReachabilityCardinality
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r136-tall-171631133200694
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 540K
-rw-r--r-- 1 mcc users 11K Apr 12 23:09 CTLCardinality.txt
-rw-r--r-- 1 mcc users 101K Apr 12 23:09 CTLCardinality.xml
-rw-r--r-- 1 mcc users 6.6K Apr 12 23:09 CTLFireability.txt
-rw-r--r-- 1 mcc users 55K Apr 12 23:09 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K May 18 16:42 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.5K May 18 16:42 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 4.4K Apr 22 14:42 LTLCardinality.txt
-rw-r--r-- 1 mcc users 28K Apr 22 14:42 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.6K Apr 22 14:42 LTLFireability.txt
-rw-r--r-- 1 mcc users 17K Apr 22 14:42 LTLFireability.xml
-rw-r--r-- 1 mcc users 13K Apr 12 23:09 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 121K Apr 12 23:09 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 8.9K Apr 12 23:09 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 66K Apr 12 23:09 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.8K Apr 22 14:42 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.9K Apr 22 14:42 UpperBounds.xml
-rw-r--r-- 1 mcc users 5 May 18 16:42 equiv_pt
-rw-r--r-- 1 mcc users 3 May 18 16:42 instance
-rw-r--r-- 1 mcc users 5 May 18 16:42 iscolored
-rw-r--r-- 1 mcc users 42K May 18 16:42 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 DrinkVendingMachine-COL-76-ReachabilityCardinality-2024-00
FORMULA_NAME DrinkVendingMachine-COL-76-ReachabilityCardinality-2024-01
FORMULA_NAME DrinkVendingMachine-COL-76-ReachabilityCardinality-2024-02
FORMULA_NAME DrinkVendingMachine-COL-76-ReachabilityCardinality-2024-03
FORMULA_NAME DrinkVendingMachine-COL-76-ReachabilityCardinality-2024-04
FORMULA_NAME DrinkVendingMachine-COL-76-ReachabilityCardinality-2024-05
FORMULA_NAME DrinkVendingMachine-COL-76-ReachabilityCardinality-2024-06
FORMULA_NAME DrinkVendingMachine-COL-76-ReachabilityCardinality-2024-07
FORMULA_NAME DrinkVendingMachine-COL-76-ReachabilityCardinality-2024-08
FORMULA_NAME DrinkVendingMachine-COL-76-ReachabilityCardinality-2024-09
FORMULA_NAME DrinkVendingMachine-COL-76-ReachabilityCardinality-2024-10
FORMULA_NAME DrinkVendingMachine-COL-76-ReachabilityCardinality-2024-11
FORMULA_NAME DrinkVendingMachine-COL-76-ReachabilityCardinality-2024-12
FORMULA_NAME DrinkVendingMachine-COL-76-ReachabilityCardinality-2024-13
FORMULA_NAME DrinkVendingMachine-COL-76-ReachabilityCardinality-2024-14
FORMULA_NAME DrinkVendingMachine-COL-76-ReachabilityCardinality-2024-15

=== Now, execution of the tool begins

BK_START 1716423819186

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=ReachabilityCardinality
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=DrinkVendingMachine-COL-76
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is COL
ReachabilityCardinality COL
Running Version 202405141337
[2024-05-23 00:23:40] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, ReachabilityCardinality, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2024-05-23 00:23:40] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2024-05-23 00:23:40] [INFO ] Detected file is not PT type :http://www.pnml.org/version-2009/grammar/symmetricnet
log4j:WARN No appenders could be found for logger (org.apache.axiom.locator.DefaultOMMetaFactoryLocator).
log4j:WARN Please initialize the log4j system properly.
log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.
[2024-05-23 00:23:40] [WARNING] Using fallBack plugin, rng conformance not checked
[2024-05-23 00:23:41] [INFO ] Load time of PNML (colored model parsed with PNMLFW) : 585 ms
[2024-05-23 00:23:41] [INFO ] Imported 6 HL places and 7 HL transitions for a total of 912 PT places and 1.0277329672E10 transition bindings in 17 ms.
Parsed 16 properties from file /home/mcc/execution/ReachabilityCardinality.xml in 25 ms.
Working with output stream class java.io.PrintStream
[2024-05-23 00:23:41] [INFO ] Built PT skeleton of HLPN with 6 places and 7 transitions 28 arcs in 3 ms.
[2024-05-23 00:23:41] [INFO ] Skeletonized 16 HLPN properties in 1 ms.
Remains 16 properties that can be checked using skeleton over-approximation.
Initial state reduction rules removed 8 formulas.
FORMULA DrinkVendingMachine-COL-76-ReachabilityCardinality-2024-01 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA DrinkVendingMachine-COL-76-ReachabilityCardinality-2024-02 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA DrinkVendingMachine-COL-76-ReachabilityCardinality-2024-05 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA DrinkVendingMachine-COL-76-ReachabilityCardinality-2024-07 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA DrinkVendingMachine-COL-76-ReachabilityCardinality-2024-09 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA DrinkVendingMachine-COL-76-ReachabilityCardinality-2024-11 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA DrinkVendingMachine-COL-76-ReachabilityCardinality-2024-12 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA DrinkVendingMachine-COL-76-ReachabilityCardinality-2024-14 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Computed a total of 0 stabilizing places and 0 stable transitions
RANDOM walk for 40308 steps (8 resets) in 123 ms. (325 steps per ms) remains 1/8 properties
[2024-05-23 00:23:41] [INFO ] Flatten gal took : 12 ms
[2024-05-23 00:23:41] [INFO ] Flatten gal took : 2 ms
[2024-05-23 00:23:41] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality6230480718434868231.gal : 4 ms
[2024-05-23 00:23:41] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality15688828803481112636.prop : 2 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202405141337/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality6230480718434868231.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality15688828803481112636.prop' '--nowitness' '--gen-order' 'FOLLOW'
BEST_FIRST walk for 40004 steps (8 resets) in 456 ms. (87 steps per ms) remains 1/1 properties

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202405141337/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...329
Loading property file /tmp/ReachabilityCardinality15688828803481112636.prop.
SDD proceeding with computation,1 properties remain. new max is 4
SDD size :30 after 37
SDD proceeding with computation,1 properties remain. new max is 8
SDD size :174 after 311
SDD proceeding with computation,1 properties remain. new max is 16
SDD size :1577 after 1605
SDD proceeding with computation,1 properties remain. new max is 32
SDD size :9677 after 11430
SDD proceeding with computation,1 properties remain. new max is 64
SDD size :65898 after 65975
// Phase 1: matrix 7 rows 6 cols
[2024-05-23 00:23:41] [INFO ] Computed 3 invariants in 3 ms
SDD proceeding with computation,1 properties remain. new max is 128
SDD size :259182 after 266959
Problem DrinkVendingMachine-COL-76-ReachabilityCardinality-2024-10 is UNSAT
After SMT solving in domain Real declared 6/13 variables, and 3 constraints, problems are : Problem set: 1 solved, 0 unsolved in 87 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/6 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
After SMT, in 171ms problems are : Problem set: 1 solved, 0 unsolved
Skipping Parikh replay, no witness traces provided.
ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
RANDOM walk for 0 steps (0 resets) in 8 ms. (0 steps per ms) remains 0/0 properties
[2024-05-23 00:23:41] [INFO ] Flatten gal took : 3 ms
[2024-05-23 00:23:41] [INFO ] Flatten gal took : 2 ms
RANDOM walk for 0 steps (0 resets) in 4 ms. (0 steps per ms) remains 0/0 properties
[2024-05-23 00:23:41] [INFO ] Flatten gal took : 2 ms
[2024-05-23 00:23:41] [INFO ] Flatten gal took : 2 ms
[2024-05-23 00:23:41] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality6881095909351213586.gal : 3 ms
[2024-05-23 00:23:41] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality8888432398196130415.prop : 0 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202405141337/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality6881095909351213586.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality8888432398196130415.prop' '--nowitness' '--gen-order' 'FOLLOW'
Finished probabilistic random walk after 0 steps, run visited all 0 properties in 0 ms. (steps per millisecond=0 )

ITS runner timed out or was interrupted.
its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202405141337/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...328
Loading property file /tmp/ReachabilityCardinality8888432398196130415.prop.
Found states matching all0 target predicate
Will report total states built up to this point. Computation was interrupted after 3 fixpoint passes
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
petri\_inst\_inst,37,0.002327,3532,2,21,6,160,6,0,42,108,0
Total reachable state count : 37

FORMULA DrinkVendingMachine-COL-76-ReachabilityCardinality-2024-10 FALSE TECHNIQUES CPN_APPROX
Symmetric sort wr.t. initial and guards and successors and join/free detected :Quality
Symmetric sort wr.t. initial detected :Quality
Transition elaborate3 : guard parameter $x(Quality:304) in guard (AND (GT $x 227) (LEQ $x 303))introduces in Quality(304) partition with 2 elements
Transition elaborate2 : guard parameter $x(Quality:304) in guard (AND (GT $x 151) (LEQ $x 227))introduces in Quality(304) partition with 2 elements
Transition elaborate1 : guard parameter $x(Quality:304) in guard (AND (GT $x 75) (LEQ $x 151))introduces in Quality(304) partition with 2 elements
Transition elaborate0 : guard parameter $x(Quality:304) in guard (LEQ $x 75)introduces in Quality(304) partition with 2 elements
Sort wr.t. initial and guards Quality has partition 4
Applying symmetric unfolding of partitioned symmetric sort :Quality domain size was 304 reducing to 4 values.
For transition elaborate3:(AND (GT $x 227) (LEQ $x 303)) -> (EQ $x 3)
For transition elaborate2:(AND (GT $x 151) (LEQ $x 227)) -> (EQ $x 2)
For transition elaborate1:(AND (GT $x 75) (LEQ $x 151)) -> (EQ $x 1)
For transition elaborate0:(LEQ $x 75) -> (EQ $x 0)
Symmetric sort wr.t. initial and guards and successors and join/free detected :Options
Symmetric sort wr.t. initial detected :Options
Symmetric sort wr.t. initial and guards detected :Options
Applying symmetric unfolding of full symmetric sort :Options domain size was 76
Symmetric sort wr.t. initial and guards and successors and join/free detected :Products
Symmetric sort wr.t. initial detected :Products
Symmetric sort wr.t. initial and guards detected :Products
Applying symmetric unfolding of full symmetric sort :Products domain size was 76
[2024-05-23 00:23:41] [INFO ] Unfolded HLPN to a Petri net with 12 places and 10 transitions 34 arcs in 26 ms.
[2024-05-23 00:23:41] [INFO ] Unfolded 8 HLPN properties in 1 ms.
RANDOM walk for 17573 steps (4 resets) in 30 ms. (566 steps per ms) remains 0/7 properties
FORMULA DrinkVendingMachine-COL-76-ReachabilityCardinality-2024-15 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA DrinkVendingMachine-COL-76-ReachabilityCardinality-2024-13 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA DrinkVendingMachine-COL-76-ReachabilityCardinality-2024-08 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA DrinkVendingMachine-COL-76-ReachabilityCardinality-2024-06 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA DrinkVendingMachine-COL-76-ReachabilityCardinality-2024-04 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA DrinkVendingMachine-COL-76-ReachabilityCardinality-2024-03 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA DrinkVendingMachine-COL-76-ReachabilityCardinality-2024-00 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
[2024-05-23 00:23:41] [INFO ] Flatten gal took : 1 ms
[2024-05-23 00:23:41] [INFO ] Flatten gal took : 1 ms
[2024-05-23 00:23:41] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality13384597615916653435.gal : 2 ms
[2024-05-23 00:23:41] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality9302528094412017313.prop : 0 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202405141337/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality13384597615916653435.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality9302528094412017313.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202405141337/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...329
Loading property file /tmp/ReachabilityCardinality9302528094412017313.prop.
Found states matching all0 target predicate
Will report total states built up to this point. Computation was interrupted after 3 fixpoint passes
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
petri\_inst\_inst,3,0.002549,3560,2,20,5,53,6,0,69,19,0
Total reachable state count : 3
ITS runner timed out or was interrupted.

All properties solved without resorting to model-checking.
Total runtime 1459 ms.

BK_STOP 1716423822003

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

+ export BINDIR=/home/mcc/BenchKit/bin//../itstools/bin//../
+ BINDIR=/home/mcc/BenchKit/bin//../itstools/bin//../
++ pwd
+ export MODEL=/home/mcc/execution
+ MODEL=/home/mcc/execution
+ [[ ReachabilityCardinality = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution ReachabilityCardinality -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600
+ 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//../itstools/bin//..//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202405141337.jar
+ VERSION=202405141337
+ echo 'Running Version 202405141337'
+ /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/its-tools -pnfolder /home/mcc/execution -examination ReachabilityCardinality -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600

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="DrinkVendingMachine-COL-76"
export BK_EXAMINATION="ReachabilityCardinality"
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 2-5568"
echo " Executing tool itstools"
echo " Input is DrinkVendingMachine-COL-76, examination is ReachabilityCardinality"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r136-tall-171631133200694"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/DrinkVendingMachine-COL-76.tgz
mv DrinkVendingMachine-COL-76 execution
cd execution
if [ "ReachabilityCardinality" = "ReachabilityDeadlock" ] || [ "ReachabilityCardinality" = "UpperBounds" ] || [ "ReachabilityCardinality" = "QuasiLiveness" ] || [ "ReachabilityCardinality" = "StableMarking" ] || [ "ReachabilityCardinality" = "Liveness" ] || [ "ReachabilityCardinality" = "OneSafe" ] || [ "ReachabilityCardinality" = "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 [ "ReachabilityCardinality" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "ReachabilityCardinality" != "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 "ReachabilityCardinality.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property ReachabilityCardinality.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "ReachabilityCardinality.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 '' ReachabilityCardinality.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "ReachabilityCardinality" = "ReachabilityDeadlock" ] || [ "ReachabilityCardinality" = "QuasiLiveness" ] || [ "ReachabilityCardinality" = "StableMarking" ] || [ "ReachabilityCardinality" = "Liveness" ] || [ "ReachabilityCardinality" = "OneSafe" ] ; then
echo "FORMULA_NAME ReachabilityCardinality"
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 ;