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.r180-tall-171640603600535.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 GPUForwardProgress-PT-20a, examination is ReachabilityFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r180-tall-171640603600535
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 596K
-rw-r--r-- 1 mcc users 7.8K May 14 13:22 CTLCardinality.txt
-rw-r--r-- 1 mcc users 89K May 14 13:22 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.4K May 14 13:22 CTLFireability.txt
-rw-r--r-- 1 mcc users 52K May 14 13:22 CTLFireability.xml
-rw-r--r-- 1 mcc users 3.8K Apr 22 14:47 LTLCardinality.txt
-rw-r--r-- 1 mcc users 28K Apr 22 14:47 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.2K Apr 22 14:47 LTLFireability.txt
-rw-r--r-- 1 mcc users 16K Apr 22 14:47 LTLFireability.xml
-rw-r--r-- 1 mcc users 17K Apr 11 22:48 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 189K Apr 11 22:48 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 12K Apr 11 22:44 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 107K Apr 11 22:44 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K Apr 22 14:47 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.8K Apr 22 14:47 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 May 18 16:42 equiv_col
-rw-r--r-- 1 mcc users 4 May 18 16:42 instance
-rw-r--r-- 1 mcc users 6 May 18 16:42 iscolored
-rw-r--r-- 1 mcc users 32K 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 GPUForwardProgress-PT-20a-ReachabilityFireability-2024-00
FORMULA_NAME GPUForwardProgress-PT-20a-ReachabilityFireability-2024-01
FORMULA_NAME GPUForwardProgress-PT-20a-ReachabilityFireability-2024-02
FORMULA_NAME GPUForwardProgress-PT-20a-ReachabilityFireability-2024-03
FORMULA_NAME GPUForwardProgress-PT-20a-ReachabilityFireability-2024-04
FORMULA_NAME GPUForwardProgress-PT-20a-ReachabilityFireability-2024-05
FORMULA_NAME GPUForwardProgress-PT-20a-ReachabilityFireability-2024-06
FORMULA_NAME GPUForwardProgress-PT-20a-ReachabilityFireability-2024-07
FORMULA_NAME GPUForwardProgress-PT-20a-ReachabilityFireability-2024-08
FORMULA_NAME GPUForwardProgress-PT-20a-ReachabilityFireability-2024-09
FORMULA_NAME GPUForwardProgress-PT-20a-ReachabilityFireability-2024-10
FORMULA_NAME GPUForwardProgress-PT-20a-ReachabilityFireability-2024-11
FORMULA_NAME GPUForwardProgress-PT-20a-ReachabilityFireability-2024-12
FORMULA_NAME GPUForwardProgress-PT-20a-ReachabilityFireability-2024-13
FORMULA_NAME GPUForwardProgress-PT-20a-ReachabilityFireability-2024-14
FORMULA_NAME GPUForwardProgress-PT-20a-ReachabilityFireability-2024-15

=== Now, execution of the tool begins

BK_START 1716509451190

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=ReachabilityFireability
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=GPUForwardProgress-PT-20a
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
ReachabilityFireability PT
Running Version 202405141337
[2024-05-24 00:10:52] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, ReachabilityFireability, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2024-05-24 00:10:52] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2024-05-24 00:10:52] [INFO ] Load time of PNML (sax parser for PT used): 57 ms
[2024-05-24 00:10:52] [INFO ] Transformed 88 places.
[2024-05-24 00:10:52] [INFO ] Transformed 109 transitions.
[2024-05-24 00:10:52] [INFO ] Found NUPN structural information;
[2024-05-24 00:10:52] [INFO ] Parsed PT model containing 88 places and 109 transitions and 421 arcs in 154 ms.
Parsed 16 properties from file /home/mcc/execution/ReachabilityFireability.xml in 19 ms.
Working with output stream class java.io.PrintStream
Initial state reduction rules removed 6 formulas.
Ensure Unique test removed 22 transitions
Reduce redundant transitions removed 22 transitions.
FORMULA GPUForwardProgress-PT-20a-ReachabilityFireability-2024-09 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA GPUForwardProgress-PT-20a-ReachabilityFireability-2024-10 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA GPUForwardProgress-PT-20a-ReachabilityFireability-2024-11 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA GPUForwardProgress-PT-20a-ReachabilityFireability-2024-12 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA GPUForwardProgress-PT-20a-ReachabilityFireability-2024-13 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA GPUForwardProgress-PT-20a-ReachabilityFireability-2024-14 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
[2024-05-24 00:10:52] [INFO ] Flatten gal took : 56 ms
[2024-05-24 00:10:52] [INFO ] Flatten gal took : 25 ms
[2024-05-24 00:10:52] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality9084140311482488792.gal : 9 ms
[2024-05-24 00:10:53] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality11752372478069112376.prop : 10 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/ReachabilityCardinality9084140311482488792.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality11752372478069112376.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

RANDOM walk for 40000 steps (124 resets) in 2013 ms. (19 steps per ms) remains 5/10 properties
FORMULA GPUForwardProgress-PT-20a-ReachabilityFireability-2024-15 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA GPUForwardProgress-PT-20a-ReachabilityFireability-2024-08 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA GPUForwardProgress-PT-20a-ReachabilityFireability-2024-04 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA GPUForwardProgress-PT-20a-ReachabilityFireability-2024-03 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA GPUForwardProgress-PT-20a-ReachabilityFireability-2024-00 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
/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/ReachabilityCardinality11752372478069112376.prop.
Reachability property GPUForwardProgress-PT-20a-ReachabilityFireability-2024-15 is true.
SDD proceeding with computation,9 properties remain. new max is 2
SDD size :22 after 24
SDD proceeding with computation,9 properties remain. new max is 4
SDD size :24 after 27
SDD proceeding with computation,9 properties remain. new max is 8
SDD size :27 after 32
SDD proceeding with computation,9 properties remain. new max is 16
SDD size :32 after 41
SDD proceeding with computation,9 properties remain. new max is 32
SDD size :41 after 43
BEST_FIRST walk for 40004 steps (8 resets) in 432 ms. (92 steps per ms) remains 5/5 properties
SDD proceeding with computation,9 properties remain. new max is 64
SDD size :755 after 965
Reachability property GPUForwardProgress-PT-20a-ReachabilityFireability-2024-08 is true.
BEST_FIRST walk for 40004 steps (8 resets) in 1146 ms. (34 steps per ms) remains 5/5 properties
BEST_FIRST walk for 40003 steps (8 resets) in 114 ms. (347 steps per ms) remains 5/5 properties
Reachability property GPUForwardProgress-PT-20a-ReachabilityFireability-2024-04 is true.
BEST_FIRST walk for 40004 steps (8 resets) in 154 ms. (258 steps per ms) remains 5/5 properties
BEST_FIRST walk for 40004 steps (8 resets) in 96 ms. (412 steps per ms) remains 5/5 properties
Reachability property GPUForwardProgress-PT-20a-ReachabilityFireability-2024-03 is true.
// Phase 1: matrix 87 rows 88 cols
[2024-05-24 00:10:53] [INFO ] Computed 22 invariants in 12 ms
[2024-05-24 00:10:53] [INFO ] State equation strengthened by 21 read => feed constraints.
Reachability property GPUForwardProgress-PT-20a-ReachabilityFireability-2024-00 is true.
SDD proceeding with computation,5 properties remain. new max is 64
SDD size :12385 after 14494
Problem GPUForwardProgress-PT-20a-ReachabilityFireability-2024-02 is UNSAT
FORMULA GPUForwardProgress-PT-20a-ReachabilityFireability-2024-02 FALSE TECHNIQUES SMT_REFINEMENT
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/59 variables, 59/59 constraints. Problems are: Problem set: 1 solved, 4 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/59 variables, 1/60 constraints. Problems are: Problem set: 1 solved, 4 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/59 variables, 0/60 constraints. Problems are: Problem set: 1 solved, 4 unsolved
At refinement iteration 3 (OVERLAPS) 27/86 variables, 20/80 constraints. Problems are: Problem set: 1 solved, 4 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/86 variables, 27/107 constraints. Problems are: Problem set: 1 solved, 4 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/86 variables, 0/107 constraints. Problems are: Problem set: 1 solved, 4 unsolved
At refinement iteration 6 (OVERLAPS) 1/87 variables, 1/108 constraints. Problems are: Problem set: 1 solved, 4 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/87 variables, 1/109 constraints. Problems are: Problem set: 1 solved, 4 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/87 variables, 0/109 constraints. Problems are: Problem set: 1 solved, 4 unsolved
At refinement iteration 9 (OVERLAPS) 86/173 variables, 87/196 constraints. Problems are: Problem set: 1 solved, 4 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/173 variables, 20/216 constraints. Problems are: Problem set: 1 solved, 4 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/173 variables, 0/216 constraints. Problems are: Problem set: 1 solved, 4 unsolved
At refinement iteration 12 (OVERLAPS) 1/174 variables, 1/217 constraints. Problems are: Problem set: 1 solved, 4 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/174 variables, 1/218 constraints. Problems are: Problem set: 1 solved, 4 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/174 variables, 0/218 constraints. Problems are: Problem set: 1 solved, 4 unsolved
At refinement iteration 15 (OVERLAPS) 1/175 variables, 1/219 constraints. Problems are: Problem set: 1 solved, 4 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/175 variables, 0/219 constraints. Problems are: Problem set: 1 solved, 4 unsolved
At refinement iteration 17 (OVERLAPS) 0/175 variables, 0/219 constraints. Problems are: Problem set: 1 solved, 4 unsolved
No progress, stopping.
After SMT solving in domain Real declared 175/175 variables, and 219 constraints, problems are : Problem set: 1 solved, 4 unsolved in 384 ms.
Refiners :[Domain max(s): 88/88 constraints, Generalized P Invariants (flows): 22/22 constraints, State Equation: 88/88 constraints, ReadFeed: 21/21 constraints, PredecessorRefiner: 5/5 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 1 solved, 4 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/51 variables, 51/51 constraints. Problems are: Problem set: 1 solved, 4 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/51 variables, 0/51 constraints. Problems are: Problem set: 1 solved, 4 unsolved
At refinement iteration 2 (OVERLAPS) 35/86 variables, 21/72 constraints. Problems are: Problem set: 1 solved, 4 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/86 variables, 35/107 constraints. Problems are: Problem set: 1 solved, 4 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/86 variables, 0/107 constraints. Problems are: Problem set: 1 solved, 4 unsolved
At refinement iteration 5 (OVERLAPS) 1/87 variables, 1/108 constraints. Problems are: Problem set: 1 solved, 4 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/87 variables, 1/109 constraints. Problems are: Problem set: 1 solved, 4 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/87 variables, 0/109 constraints. Problems are: Problem set: 1 solved, 4 unsolved
At refinement iteration 8 (OVERLAPS) 86/173 variables, 87/196 constraints. Problems are: Problem set: 1 solved, 4 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/173 variables, 20/216 constraints. Problems are: Problem set: 1 solved, 4 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/173 variables, 4/220 constraints. Problems are: Problem set: 1 solved, 4 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/173 variables, 0/220 constraints. Problems are: Problem set: 1 solved, 4 unsolved
Problem GPUForwardProgress-PT-20a-ReachabilityFireability-2024-01 is UNSAT
FORMULA GPUForwardProgress-PT-20a-ReachabilityFireability-2024-01 TRUE TECHNIQUES SMT_REFINEMENT
Reachability property GPUForwardProgress-PT-20a-ReachabilityFireability-2024-06 is true.
FORMULA GPUForwardProgress-PT-20a-ReachabilityFireability-2024-06 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING
At refinement iteration 12 (OVERLAPS) 1/174 variables, 1/221 constraints. Problems are: Problem set: 3 solved, 2 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/174 variables, 1/222 constraints. Problems are: Problem set: 3 solved, 2 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/174 variables, 0/222 constraints. Problems are: Problem set: 3 solved, 2 unsolved
At refinement iteration 15 (OVERLAPS) 1/175 variables, 1/223 constraints. Problems are: Problem set: 3 solved, 2 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/175 variables, 0/223 constraints. Problems are: Problem set: 3 solved, 2 unsolved
At refinement iteration 17 (OVERLAPS) 0/175 variables, 0/223 constraints. Problems are: Problem set: 3 solved, 2 unsolved
No progress, stopping.
After SMT solving in domain Int declared 175/175 variables, and 223 constraints, problems are : Problem set: 3 solved, 2 unsolved in 448 ms.
Refiners :[Domain max(s): 88/88 constraints, Generalized P Invariants (flows): 22/22 constraints, State Equation: 88/88 constraints, ReadFeed: 21/21 constraints, PredecessorRefiner: 4/5 constraints, Known Traps: 0/0 constraints]
After SMT, in 937ms problems are : Problem set: 3 solved, 2 unsolved
FORMULA GPUForwardProgress-PT-20a-ReachabilityFireability-2024-05 FALSE TECHNIQUES PARIKH_WALK
Finished Parikh walk after 126 steps, including 0 resets, run visited all 1 properties in 1 ms. (steps per millisecond=126 )
FORMULA GPUForwardProgress-PT-20a-ReachabilityFireability-2024-07 FALSE TECHNIQUES PARIKH_WALK
Parikh walk visited 2 properties in 48 ms.
ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
All properties solved without resorting to model-checking.
Total runtime 2472 ms.

BK_STOP 1716509454798

--------------------
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
+ [[ ReachabilityFireability = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution ReachabilityFireability -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 ReachabilityFireability -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="GPUForwardProgress-PT-20a"
export BK_EXAMINATION="ReachabilityFireability"
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 GPUForwardProgress-PT-20a, examination is ReachabilityFireability"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r180-tall-171640603600535"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/GPUForwardProgress-PT-20a.tgz
mv GPUForwardProgress-PT-20a execution
cd execution
if [ "ReachabilityFireability" = "ReachabilityDeadlock" ] || [ "ReachabilityFireability" = "UpperBounds" ] || [ "ReachabilityFireability" = "QuasiLiveness" ] || [ "ReachabilityFireability" = "StableMarking" ] || [ "ReachabilityFireability" = "Liveness" ] || [ "ReachabilityFireability" = "OneSafe" ] || [ "ReachabilityFireability" = "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 [ "ReachabilityFireability" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "ReachabilityFireability" != "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 "ReachabilityFireability.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property ReachabilityFireability.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "ReachabilityFireability.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 '' ReachabilityFireability.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "ReachabilityFireability" = "ReachabilityDeadlock" ] || [ "ReachabilityFireability" = "QuasiLiveness" ] || [ "ReachabilityFireability" = "StableMarking" ] || [ "ReachabilityFireability" = "Liveness" ] || [ "ReachabilityFireability" = "OneSafe" ] ; then
echo "FORMULA_NAME ReachabilityFireability"
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 ;