About the Execution of 2021-gold for BART-PT-005
Execution Summary | |||||
Max Memory Used (MB) |
Time wait (ms) | CPU Usage (ms) | I/O Wait (ms) | Computed Result | Execution Status |
311.384 | 11309.00 | 21928.00 | 65.50 | FFFTTTFFTTTTTFFT | normal |
Execution Chart
We display below the execution chart for this examination (boot time has been removed).
Trace from the execution
Formatting '/mnt/tpsp/fkordon/mcc2022-input.r010-tajo-165245701800227.qcow2', fmt=qcow2 size=4294967296 backing_file='/mnt/tpsp/fkordon/mcc2022-input.qcow2' encryption=off cluster_size=65536 lazy_refcounts=off
Waiting for the VM to be ready (probing ssh)
......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
=====================================================================
Generated by BenchKit 2-4028
Executing tool gold2021
Input is BART-PT-005, examination is ReachabilityCardinality
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r010-tajo-165245701800227
=====================================================================
--------------------
preparation of the directory to be used:
/home/mcc/execution
total 9.8M
-rw-r--r-- 1 mcc users 149K Apr 29 20:28 CTLCardinality.txt
-rw-r--r-- 1 mcc users 520K Apr 29 20:28 CTLCardinality.xml
-rw-r--r-- 1 mcc users 302K Apr 29 20:15 CTLFireability.txt
-rw-r--r-- 1 mcc users 1021K Apr 29 20:15 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K May 10 09:33 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.4K May 10 09:33 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 253K May 9 07:05 LTLCardinality.txt
-rw-r--r-- 1 mcc users 672K May 9 07:05 LTLCardinality.xml
-rw-r--r-- 1 mcc users 94K May 9 07:05 LTLFireability.txt
-rw-r--r-- 1 mcc users 254K May 9 07:05 LTLFireability.xml
-rw-r--r-- 1 mcc users 543K Apr 29 20:50 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 2.0M Apr 29 20:50 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 627K Apr 29 20:38 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 2.1M Apr 29 20:38 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 33K May 9 07:05 UpperBounds.txt
-rw-r--r-- 1 mcc users 68K May 9 07:05 UpperBounds.xml
-rw-r--r-- 1 mcc users 5 May 10 09:33 equiv_col
-rw-r--r-- 1 mcc users 4 May 10 09:33 instance
-rw-r--r-- 1 mcc users 6 May 10 09:33 iscolored
-rw-r--r-- 1 mcc users 1.3M May 10 09:33 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 BART-PT-005-ReachabilityCardinality-00
FORMULA_NAME BART-PT-005-ReachabilityCardinality-01
FORMULA_NAME BART-PT-005-ReachabilityCardinality-02
FORMULA_NAME BART-PT-005-ReachabilityCardinality-03
FORMULA_NAME BART-PT-005-ReachabilityCardinality-04
FORMULA_NAME BART-PT-005-ReachabilityCardinality-05
FORMULA_NAME BART-PT-005-ReachabilityCardinality-06
FORMULA_NAME BART-PT-005-ReachabilityCardinality-07
FORMULA_NAME BART-PT-005-ReachabilityCardinality-08
FORMULA_NAME BART-PT-005-ReachabilityCardinality-09
FORMULA_NAME BART-PT-005-ReachabilityCardinality-10
FORMULA_NAME BART-PT-005-ReachabilityCardinality-11
FORMULA_NAME BART-PT-005-ReachabilityCardinality-12
FORMULA_NAME BART-PT-005-ReachabilityCardinality-13
FORMULA_NAME BART-PT-005-ReachabilityCardinality-14
FORMULA_NAME BART-PT-005-ReachabilityCardinality-15
=== Now, execution of the tool begins
BK_START 1655070253199
Running Version 0
[2022-06-12 21:44:15] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, ReachabilityCardinality, -spotpath, /home/mcc/BenchKit/bin//..//ltlfilt, -z3path, /home/mcc/BenchKit/bin//..//z3/bin/z3, -yices2path, /home/mcc/BenchKit/bin//..//yices/bin/yices, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2022-06-12 21:44:15] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2022-06-12 21:44:16] [INFO ] Load time of PNML (sax parser for PT used): 251 ms
[2022-06-12 21:44:16] [INFO ] Transformed 870 places.
[2022-06-12 21:44:16] [INFO ] Transformed 1010 transitions.
[2022-06-12 21:44:16] [INFO ] Found NUPN structural information;
[2022-06-12 21:44:16] [INFO ] Parsed PT model containing 870 places and 1010 transitions in 421 ms.
Parsed 16 properties from file /home/mcc/execution/ReachabilityCardinality.xml in 189 ms.
Working with output stream class java.io.PrintStream
Reduce places removed 210 places and 0 transitions.
FORMULA BART-PT-005-ReachabilityCardinality-00 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA BART-PT-005-ReachabilityCardinality-01 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA BART-PT-005-ReachabilityCardinality-02 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA BART-PT-005-ReachabilityCardinality-03 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA BART-PT-005-ReachabilityCardinality-04 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA BART-PT-005-ReachabilityCardinality-05 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA BART-PT-005-ReachabilityCardinality-06 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA BART-PT-005-ReachabilityCardinality-07 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA BART-PT-005-ReachabilityCardinality-11 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA BART-PT-005-ReachabilityCardinality-12 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Incomplete random walk after 10000 steps, including 2 resets, run finished after 76 ms. (steps per millisecond=131 ) properties (out of 6) seen :2
FORMULA BART-PT-005-ReachabilityCardinality-14 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA BART-PT-005-ReachabilityCardinality-13 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 54 ms. (steps per millisecond=185 ) properties (out of 4) seen :1
FORMULA BART-PT-005-ReachabilityCardinality-08 TRUE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 44 ms. (steps per millisecond=227 ) properties (out of 3) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 10 ms. (steps per millisecond=1000 ) properties (out of 3) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 25 ms. (steps per millisecond=400 ) properties (out of 3) seen :0
Running SMT prover for 3 properties.
// Phase 1: matrix 1010 rows 660 cols
[2022-06-12 21:44:16] [INFO ] Computed 5 place invariants in 47 ms
[2022-06-12 21:44:17] [INFO ] [Real]Absence check using 5 positive place invariants in 27 ms returned sat
[2022-06-12 21:44:17] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2022-06-12 21:44:17] [INFO ] [Real]Absence check using state equation in 281 ms returned sat
[2022-06-12 21:44:17] [INFO ] Solution in real domain found non-integer solution.
[2022-06-12 21:44:17] [INFO ] [Nat]Absence check using 5 positive place invariants in 52 ms returned sat
[2022-06-12 21:44:17] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2022-06-12 21:44:18] [INFO ] [Nat]Absence check using state equation in 285 ms returned sat
[2022-06-12 21:44:18] [INFO ] Computed and/alt/rep : 830/1350/830 causal constraints (skipped 0 transitions) in 127 ms.
[2022-06-12 21:44:22] [WARNING] SMT solver failed with error :java.lang.RuntimeException: SMT solver raised an error when submitting script. Raised (error "Failed to assert expression: java.io.IOException: Stream close... while checking expression at index 0
[2022-06-12 21:44:22] [INFO ] [Real]Absence check using 5 positive place invariants in 10 ms returned sat
[2022-06-12 21:44:22] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2022-06-12 21:44:23] [INFO ] [Real]Absence check using state equation in 286 ms returned sat
[2022-06-12 21:44:23] [INFO ] Solution in real domain found non-integer solution.
[2022-06-12 21:44:23] [INFO ] [Real]Absence check using 5 positive place invariants in 12 ms returned sat
[2022-06-12 21:44:23] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2022-06-12 21:44:23] [INFO ] [Real]Absence check using state equation in 296 ms returned sat
[2022-06-12 21:44:23] [INFO ] Solution in real domain found non-integer solution.
FORMULA BART-PT-005-ReachabilityCardinality-15 TRUE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA BART-PT-005-ReachabilityCardinality-10 TRUE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
Fused 3 Parikh solutions to 1 different solutions.
Support contains 16 out of 660 places. Attempting structural reductions.
Starting structural reductions, iteration 0 : 660/660 places, 1010/1010 transitions.
Graph (trivial) has 966 edges and 660 vertex of which 563 / 660 are part of one of the 5 SCC in 12 ms
Free SCC test removed 558 places
Drop transitions removed 866 transitions
Ensure Unique test removed 5 transitions
Reduce isomorphic transitions removed 871 transitions.
Drop transitions removed 45 transitions
Trivial Post-agglo rules discarded 45 transitions
Performed 45 trivial Post agglomeration. Transition count delta: 45
Iterating post reduction 0 with 45 rules applied. Total rules applied 46 place count 102 transition count 94
Reduce places removed 45 places and 0 transitions.
Ensure Unique test removed 5 transitions
Reduce isomorphic transitions removed 5 transitions.
Drop transitions removed 4 transitions
Trivial Post-agglo rules discarded 4 transitions
Performed 4 trivial Post agglomeration. Transition count delta: 4
Iterating post reduction 1 with 54 rules applied. Total rules applied 100 place count 57 transition count 85
Reduce places removed 4 places and 0 transitions.
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Drop transitions removed 1 transitions
Trivial Post-agglo rules discarded 1 transitions
Performed 1 trivial Post agglomeration. Transition count delta: 1
Iterating post reduction 2 with 7 rules applied. Total rules applied 107 place count 53 transition count 82
Reduce places removed 1 places and 0 transitions.
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Drop transitions removed 1 transitions
Trivial Post-agglo rules discarded 1 transitions
Performed 1 trivial Post agglomeration. Transition count delta: 1
Iterating post reduction 3 with 3 rules applied. Total rules applied 110 place count 52 transition count 80
Reduce places removed 1 places and 0 transitions.
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Drop transitions removed 1 transitions
Trivial Post-agglo rules discarded 1 transitions
Performed 1 trivial Post agglomeration. Transition count delta: 1
Iterating post reduction 4 with 3 rules applied. Total rules applied 113 place count 51 transition count 78
Reduce places removed 1 places and 0 transitions.
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Performed 5 Post agglomeration using F-continuation condition.Transition count delta: 5
Iterating post reduction 5 with 7 rules applied. Total rules applied 120 place count 50 transition count 72
Reduce places removed 5 places and 0 transitions.
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 6 with 6 rules applied. Total rules applied 126 place count 45 transition count 71
Performed 2 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 7 with 2 Pre rules applied. Total rules applied 126 place count 45 transition count 69
Deduced a syphon composed of 2 places in 0 ms
Reduce places removed 2 places and 0 transitions.
Iterating global reduction 7 with 4 rules applied. Total rules applied 130 place count 43 transition count 69
Discarding 6 places :
Symmetric choice reduction at 7 with 6 rule applications. Total rules 136 place count 37 transition count 63
Iterating global reduction 7 with 6 rules applied. Total rules applied 142 place count 37 transition count 63
Ensure Unique test removed 6 transitions
Reduce isomorphic transitions removed 6 transitions.
Drop transitions removed 1 transitions
Trivial Post-agglo rules discarded 1 transitions
Performed 1 trivial Post agglomeration. Transition count delta: 1
Iterating post reduction 7 with 7 rules applied. Total rules applied 149 place count 37 transition count 56
Reduce places removed 1 places and 0 transitions.
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 8 with 2 rules applied. Total rules applied 151 place count 36 transition count 55
Performed 6 Post agglomeration using F-continuation condition.Transition count delta: 6
Deduced a syphon composed of 6 places in 0 ms
Reduce places removed 6 places and 0 transitions.
Iterating global reduction 9 with 12 rules applied. Total rules applied 163 place count 30 transition count 49
Ensure Unique test removed 6 transitions
Reduce isomorphic transitions removed 6 transitions.
Iterating post reduction 9 with 6 rules applied. Total rules applied 169 place count 30 transition count 43
Drop transitions removed 2 transitions
Redundant transition composition rules discarded 2 transitions
Iterating global reduction 10 with 2 rules applied. Total rules applied 171 place count 30 transition count 41
Free-agglomeration rule applied 7 times.
Iterating global reduction 10 with 7 rules applied. Total rules applied 178 place count 30 transition count 34
Reduce places removed 7 places and 0 transitions.
Iterating post reduction 10 with 7 rules applied. Total rules applied 185 place count 23 transition count 34
Drop transitions removed 1 transitions
Redundant transition composition rules discarded 1 transitions
Iterating global reduction 11 with 1 rules applied. Total rules applied 186 place count 23 transition count 33
Applied a total of 186 rules in 68 ms. Remains 23 /660 variables (removed 637) and now considering 33/1010 (removed 977) transitions.
Finished structural reductions, in 1 iterations. Remains : 23/660 places, 33/1010 transitions.
[2022-06-12 21:44:24] [INFO ] Flatten gal took : 21 ms
[2022-06-12 21:44:24] [INFO ] Flatten gal took : 4 ms
[2022-06-12 21:44:24] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality4063709041411389065.gal : 4 ms
[2022-06-12 21:44:24] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality1185691135372289044.prop : 1 ms
Invoking ITS tools like this :CommandLine [args=[/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202104292328/bin/its-reach-linux64, --gc-threshold, 2000000, --quiet, -i, /tmp/ReachabilityCardinality4063709041411389065.gal, -t, CGAL, -reachable-file, /tmp/ReachabilityCardinality1185691135372289044.prop, --nowitness, --gen-order, FOLLOW], workingDir=/home/mcc/execution]
its-reach command run as :
/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202104292328/bin/its-reach-linux64 --gc-threshold 2000000 --quiet -i /tmp/ReachabilityCardinality4063709041411389065.gal -t CGAL -reachable-file /tmp/ReachabilityCardinality1185691135372289044.prop --nowitness --gen-order FOLLOW
Loading property file /tmp/ReachabilityCardinality1185691135372289044.prop.
SDD proceeding with computation,1 properties remain. new max is 4
SDD size :1 after 7
SDD proceeding with computation,1 properties remain. new max is 8
SDD size :7 after 10
SDD proceeding with computation,1 properties remain. new max is 16
SDD size :10 after 34
SDD proceeding with computation,1 properties remain. new max is 32
SDD size :34 after 280
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,1400,0.012365,3836,2,68,9,480,7,0,157,222,0
Total reachable state count : 1400
Verifying 1 reachability properties.
Reachability property BART-PT-005-ReachabilityCardinality-09 is true.
FORMULA BART-PT-005-ReachabilityCardinality-09 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
BART-PT-005-ReachabilityCardinality-09,12,0.013737,4192,2,55,9,480,7,0,183,222,0
All properties solved without resorting to model-checking.
BK_STOP 1655070264508
--------------------
content from stderr:
+ export BINDIR=/home/mcc/BenchKit/bin//../
+ BINDIR=/home/mcc/BenchKit/bin//../
++ pwd
+ export MODEL=/home/mcc/execution
+ MODEL=/home/mcc/execution
+ [[ ReachabilityCardinality = StateSpace ]]
+ /home/mcc/BenchKit/bin//..//runeclipse.sh /home/mcc/execution ReachabilityCardinality -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600
+ ulimit -s 65536
+ [[ -z '' ]]
+ export LTSMIN_MEM_SIZE=8589934592
+ LTSMIN_MEM_SIZE=8589934592
++ cut -d . -f 9
++ ls /home/mcc/BenchKit/bin//..//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202104292328.jar
+ VERSION=0
+ echo 'Running Version 0'
+ /home/mcc/BenchKit/bin//..//itstools/its-tools -data /home/mcc/execution/workspace -pnfolder /home/mcc/execution -examination ReachabilityCardinality -spotpath /home/mcc/BenchKit/bin//..//ltlfilt -z3path /home/mcc/BenchKit/bin//..//z3/bin/z3 -yices2path /home/mcc/BenchKit/bin//..//yices/bin/yices -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600 -vmargs -Dosgi.locking=none -Declipse.stateSaveDelayInterval=-1 -Dosgi.configuration.area=/tmp/.eclipse -Xss128m -Xms40m -Xmx16000m
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="BART-PT-005"
export BK_EXAMINATION="ReachabilityCardinality"
export BK_TOOL="gold2021"
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 2-4028"
echo " Executing tool gold2021"
echo " Input is BART-PT-005, 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 r010-tajo-165245701800227"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"
tar xzf /home/mcc/BenchKit/INPUTS/BART-PT-005.tgz
mv BART-PT-005 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 '
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 ;