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.r355-tall-171683758300239.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 greatspnxred
Input is ShieldIIPt-PT-004B, examination is ReachabilityFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r355-tall-171683758300239
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 556K
-rw-r--r-- 1 mcc users 7.8K May 14 13:22 CTLCardinality.txt
-rw-r--r-- 1 mcc users 90K May 14 13:22 CTLCardinality.xml
-rw-r--r-- 1 mcc users 4.9K May 14 13:22 CTLFireability.txt
-rw-r--r-- 1 mcc users 46K May 14 13:22 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K May 18 16:43 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.6K May 18 16:43 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 3.7K Apr 23 07:52 LTLCardinality.txt
-rw-r--r-- 1 mcc users 27K Apr 23 07:52 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.1K May 19 07:31 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K May 19 19:05 LTLFireability.xml
-rw-r--r-- 1 mcc users 13K Apr 12 20:36 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 140K Apr 12 20:36 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 8.3K Apr 12 20:36 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 72K Apr 12 20:36 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K Apr 23 07:52 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K Apr 23 07:52 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 May 18 16:43 equiv_col
-rw-r--r-- 1 mcc users 5 May 18 16:43 instance
-rw-r--r-- 1 mcc users 6 May 18 16:43 iscolored
-rw-r--r-- 1 mcc users 67K May 18 16:43 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 ShieldIIPt-PT-004B-ReachabilityFireability-2024-00
FORMULA_NAME ShieldIIPt-PT-004B-ReachabilityFireability-2024-01
FORMULA_NAME ShieldIIPt-PT-004B-ReachabilityFireability-2024-02
FORMULA_NAME ShieldIIPt-PT-004B-ReachabilityFireability-2024-03
FORMULA_NAME ShieldIIPt-PT-004B-ReachabilityFireability-2024-04
FORMULA_NAME ShieldIIPt-PT-004B-ReachabilityFireability-2024-05
FORMULA_NAME ShieldIIPt-PT-004B-ReachabilityFireability-2024-06
FORMULA_NAME ShieldIIPt-PT-004B-ReachabilityFireability-2024-07
FORMULA_NAME ShieldIIPt-PT-004B-ReachabilityFireability-2024-08
FORMULA_NAME ShieldIIPt-PT-004B-ReachabilityFireability-2024-09
FORMULA_NAME ShieldIIPt-PT-004B-ReachabilityFireability-2024-10
FORMULA_NAME ShieldIIPt-PT-004B-ReachabilityFireability-2024-11
FORMULA_NAME ShieldIIPt-PT-004B-ReachabilityFireability-2024-12
FORMULA_NAME ShieldIIPt-PT-004B-ReachabilityFireability-2024-13
FORMULA_NAME ShieldIIPt-PT-004B-ReachabilityFireability-2024-14
FORMULA_NAME ShieldIIPt-PT-004B-ReachabilityFireability-2024-15

=== Now, execution of the tool begins

BK_START 1716927617025

Invoking MCC driver with
BK_TOOL=greatspnxred
BK_EXAMINATION=ReachabilityFireability
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=ShieldIIPt-PT-004B
BK_MEMORY_CONFINEMENT=16384
Applying reductions before tool greatspn
Invoking reducer
Running Version 202405141337
[2024-05-28 20:20:18] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, ReachabilityFireability, -timeout, 360, -rebuildPNML]
[2024-05-28 20:20:18] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2024-05-28 20:20:18] [INFO ] Load time of PNML (sax parser for PT used): 80 ms
[2024-05-28 20:20:18] [INFO ] Transformed 283 places.
[2024-05-28 20:20:18] [INFO ] Transformed 263 transitions.
[2024-05-28 20:20:18] [INFO ] Found NUPN structural information;
[2024-05-28 20:20:18] [INFO ] Parsed PT model containing 283 places and 263 transitions and 654 arcs in 187 ms.
Parsed 16 properties from file /home/mcc/execution/ReachabilityFireability.xml in 16 ms.
Working with output stream class java.io.PrintStream
RANDOM walk for 40000 steps (8 resets) in 1542 ms. (25 steps per ms) remains 5/16 properties
FORMULA ShieldIIPt-PT-004B-ReachabilityFireability-2024-15 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA ShieldIIPt-PT-004B-ReachabilityFireability-2024-14 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA ShieldIIPt-PT-004B-ReachabilityFireability-2024-13 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA ShieldIIPt-PT-004B-ReachabilityFireability-2024-11 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA ShieldIIPt-PT-004B-ReachabilityFireability-2024-10 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA ShieldIIPt-PT-004B-ReachabilityFireability-2024-08 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA ShieldIIPt-PT-004B-ReachabilityFireability-2024-07 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA ShieldIIPt-PT-004B-ReachabilityFireability-2024-04 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA ShieldIIPt-PT-004B-ReachabilityFireability-2024-03 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA ShieldIIPt-PT-004B-ReachabilityFireability-2024-02 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA ShieldIIPt-PT-004B-ReachabilityFireability-2024-00 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
BEST_FIRST walk for 40004 steps (8 resets) in 415 ms. (96 steps per ms) remains 4/5 properties
FORMULA ShieldIIPt-PT-004B-ReachabilityFireability-2024-09 FALSE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 40003 steps (8 resets) in 289 ms. (137 steps per ms) remains 4/4 properties
BEST_FIRST walk for 40003 steps (8 resets) in 198 ms. (201 steps per ms) remains 3/4 properties
FORMULA ShieldIIPt-PT-004B-ReachabilityFireability-2024-06 TRUE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 40004 steps (8 resets) in 169 ms. (235 steps per ms) remains 3/3 properties
// Phase 1: matrix 263 rows 283 cols
[2024-05-28 20:20:19] [INFO ] Computed 37 invariants in 20 ms
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/74 variables, 74/74 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/74 variables, 0/74 constraints. Problems are: Problem set: 0 solved, 3 unsolved
Problem ShieldIIPt-PT-004B-ReachabilityFireability-2024-12 is UNSAT
FORMULA ShieldIIPt-PT-004B-ReachabilityFireability-2024-12 FALSE TECHNIQUES SMT_REFINEMENT
At refinement iteration 2 (OVERLAPS) 209/283 variables, 37/111 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/283 variables, 209/320 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/283 variables, 0/320 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 5 (OVERLAPS) 263/546 variables, 283/603 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/546 variables, 0/603 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 7 (OVERLAPS) 0/546 variables, 0/603 constraints. Problems are: Problem set: 1 solved, 2 unsolved
No progress, stopping.
After SMT solving in domain Real declared 546/546 variables, and 603 constraints, problems are : Problem set: 1 solved, 2 unsolved in 424 ms.
Refiners :[Domain max(s): 283/283 constraints, Positive P Invariants (semi-flows): 37/37 constraints, State Equation: 283/283 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 1 solved, 2 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/40 variables, 40/40 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/40 variables, 0/40 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 2 (OVERLAPS) 198/238 variables, 31/71 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/238 variables, 198/269 constraints. Problems are: Problem set: 1 solved, 2 unsolved
[2024-05-28 20:20:20] [INFO ] Deduced a trap composed of 24 places in 139 ms of which 12 ms to minimize.
[2024-05-28 20:20:20] [INFO ] Deduced a trap composed of 14 places in 137 ms of which 7 ms to minimize.
[2024-05-28 20:20:20] [INFO ] Deduced a trap composed of 27 places in 74 ms of which 15 ms to minimize.
[2024-05-28 20:20:20] [INFO ] Deduced a trap composed of 18 places in 49 ms of which 1 ms to minimize.
[2024-05-28 20:20:20] [INFO ] Deduced a trap composed of 14 places in 136 ms of which 1 ms to minimize.
[2024-05-28 20:20:20] [INFO ] Deduced a trap composed of 23 places in 95 ms of which 1 ms to minimize.
Problem ShieldIIPt-PT-004B-ReachabilityFireability-2024-01 is UNSAT
FORMULA ShieldIIPt-PT-004B-ReachabilityFireability-2024-01 FALSE TECHNIQUES SMT_REFINEMENT
[2024-05-28 20:20:20] [INFO ] Deduced a trap composed of 21 places in 30 ms of which 0 ms to minimize.
[2024-05-28 20:20:20] [INFO ] Deduced a trap composed of 21 places in 28 ms of which 1 ms to minimize.
[2024-05-28 20:20:20] [INFO ] Deduced a trap composed of 20 places in 25 ms of which 1 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/238 variables, 9/278 constraints. Problems are: Problem set: 2 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/238 variables, 0/278 constraints. Problems are: Problem set: 2 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 45/283 variables, 6/284 constraints. Problems are: Problem set: 2 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/283 variables, 45/329 constraints. Problems are: Problem set: 2 solved, 1 unsolved
[2024-05-28 20:20:20] [INFO ] Deduced a trap composed of 21 places in 47 ms of which 1 ms to minimize.
[2024-05-28 20:20:20] [INFO ] Deduced a trap composed of 20 places in 36 ms of which 1 ms to minimize.
[2024-05-28 20:20:20] [INFO ] Deduced a trap composed of 18 places in 41 ms of which 1 ms to minimize.
[2024-05-28 20:20:20] [INFO ] Deduced a trap composed of 28 places in 31 ms of which 0 ms to minimize.
[2024-05-28 20:20:20] [INFO ] Deduced a trap composed of 18 places in 32 ms of which 0 ms to minimize.
At refinement iteration 8 (INCLUDED_ONLY) 0/283 variables, 5/334 constraints. Problems are: Problem set: 2 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/283 variables, 0/334 constraints. Problems are: Problem set: 2 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 263/546 variables, 283/617 constraints. Problems are: Problem set: 2 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/546 variables, 1/618 constraints. Problems are: Problem set: 2 solved, 1 unsolved
[2024-05-28 20:20:21] [INFO ] Deduced a trap composed of 24 places in 35 ms of which 1 ms to minimize.
[2024-05-28 20:20:21] [INFO ] Deduced a trap composed of 22 places in 35 ms of which 1 ms to minimize.
At refinement iteration 12 (INCLUDED_ONLY) 0/546 variables, 2/620 constraints. Problems are: Problem set: 2 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/546 variables, 0/620 constraints. Problems are: Problem set: 2 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 0/546 variables, 0/620 constraints. Problems are: Problem set: 2 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 546/546 variables, and 620 constraints, problems are : Problem set: 2 solved, 1 unsolved in 1510 ms.
Refiners :[Domain max(s): 283/283 constraints, Positive P Invariants (semi-flows): 37/37 constraints, State Equation: 283/283 constraints, PredecessorRefiner: 1/3 constraints, Known Traps: 16/16 constraints]
After SMT, in 2025ms problems are : Problem set: 2 solved, 1 unsolved
Parikh walk visited 0 properties in 78 ms.
Support contains 22 out of 283 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 283/283 places, 263/263 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 52 transitions
Trivial Post-agglo rules discarded 52 transitions
Performed 52 trivial Post agglomeration. Transition count delta: 52
Iterating post reduction 0 with 52 rules applied. Total rules applied 52 place count 283 transition count 211
Reduce places removed 52 places and 0 transitions.
Performed 5 Post agglomeration using F-continuation condition.Transition count delta: 5
Iterating post reduction 1 with 57 rules applied. Total rules applied 109 place count 231 transition count 206
Reduce places removed 5 places and 0 transitions.
Iterating post reduction 2 with 5 rules applied. Total rules applied 114 place count 226 transition count 206
Performed 18 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 18 Pre rules applied. Total rules applied 114 place count 226 transition count 188
Deduced a syphon composed of 18 places in 1 ms
Reduce places removed 18 places and 0 transitions.
Iterating global reduction 3 with 36 rules applied. Total rules applied 150 place count 208 transition count 188
Discarding 22 places :
Symmetric choice reduction at 3 with 22 rule applications. Total rules 172 place count 186 transition count 166
Iterating global reduction 3 with 22 rules applied. Total rules applied 194 place count 186 transition count 166
Performed 9 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 9 Pre rules applied. Total rules applied 194 place count 186 transition count 157
Deduced a syphon composed of 9 places in 1 ms
Reduce places removed 9 places and 0 transitions.
Iterating global reduction 3 with 18 rules applied. Total rules applied 212 place count 177 transition count 157
Performed 59 Post agglomeration using F-continuation condition.Transition count delta: 59
Deduced a syphon composed of 59 places in 0 ms
Reduce places removed 59 places and 0 transitions.
Iterating global reduction 3 with 118 rules applied. Total rules applied 330 place count 118 transition count 98
Performed 8 Post agglomeration using F-continuation condition.Transition count delta: -2
Deduced a syphon composed of 8 places in 0 ms
Reduce places removed 8 places and 0 transitions.
Iterating global reduction 3 with 16 rules applied. Total rules applied 346 place count 110 transition count 100
Drop transitions (Empty/Sink Transition effects.) removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 3 with 1 rules applied. Total rules applied 347 place count 110 transition count 99
Drop transitions (Redundant composition of simpler transitions.) removed 1 transitions
Redundant transition composition rules discarded 1 transitions
Iterating global reduction 4 with 1 rules applied. Total rules applied 348 place count 110 transition count 98
Partial Free-agglomeration rule applied 4 times.
Drop transitions (Partial Free agglomeration) removed 4 transitions
Iterating global reduction 4 with 4 rules applied. Total rules applied 352 place count 110 transition count 98
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 4 with 1 rules applied. Total rules applied 353 place count 109 transition count 97
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 4 with 1 rules applied. Total rules applied 354 place count 108 transition count 97
Applied a total of 354 rules in 91 ms. Remains 108 /283 variables (removed 175) and now considering 97/263 (removed 166) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 101 ms. Remains : 108/283 places, 97/263 transitions.
RANDOM walk for 21829 steps (4 resets) in 481 ms. (45 steps per ms) remains 0/1 properties
FORMULA ShieldIIPt-PT-004B-ReachabilityFireability-2024-05 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
All properties solved without resorting to model-checking.
Total runtime 3465 ms.
ITS solved all properties within timeout

BK_STOP 1716927621697

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

+ 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//../reducer/bin//../../itstools//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202405141337.jar
+ VERSION=202405141337
+ echo 'Running Version 202405141337'
+ /home/mcc/BenchKit/bin//../reducer/bin//../../itstools//itstools/its-tools -pnfolder /home/mcc/execution -examination ReachabilityFireability -timeout 360 -rebuildPNML

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="ShieldIIPt-PT-004B"
export BK_EXAMINATION="ReachabilityFireability"
export BK_TOOL="greatspnxred"
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 greatspnxred"
echo " Input is ShieldIIPt-PT-004B, 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 r355-tall-171683758300239"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/ShieldIIPt-PT-004B.tgz
mv ShieldIIPt-PT-004B 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 ;