fond
Model Checking Contest 2024
14th edition, Geneva, Switzerland, June 25, 2024
Execution of r048-tajo-171620399600479
Last Updated
July 7, 2024

About the Execution of ITS-Tools for BusinessProcesses-PT-04

Execution Summary
Max Memory
Used (MB)
Time wait (ms) CPU Usage (ms) I/O Wait (ms) Computed Result Execution
Status
371.123 5877.00 17952.00 70.30 TFFTTTFFTFTTTFFF 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/mcc2024-input.r048-tajo-171620399600479.qcow2', fmt=qcow2 size=4294967296 backing_file='/mnt/tpsp/fkordon/mcc2024-input.qcow2' backing_fmt='qcow2' encryption=off cluster_size=65536 lazy_refcounts=off
Waiting for the VM to be ready (probing ssh)
...........................
=====================================================================
Generated by BenchKit 2-5568
Executing tool itstools
Input is BusinessProcesses-PT-04, examination is ReachabilityFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r048-tajo-171620399600479
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 432K
-rw-r--r-- 1 mcc users 6.4K May 14 13:22 CTLCardinality.txt
-rw-r--r-- 1 mcc users 70K May 14 13:22 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.0K May 14 13:22 CTLFireability.txt
-rw-r--r-- 1 mcc users 43K May 14 13:22 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K May 18 16:42 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.8K May 18 16:42 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 3.5K May 19 07:06 LTLCardinality.txt
-rw-r--r-- 1 mcc users 24K May 19 15:30 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.3K May 19 07:13 LTLFireability.txt
-rw-r--r-- 1 mcc users 19K May 19 17:55 LTLFireability.xml
-rw-r--r-- 1 mcc users 6.0K Apr 11 16:39 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 53K Apr 11 16:39 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 7.2K Apr 11 16:39 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 60K Apr 11 16:39 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K Apr 22 14:31 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.8K Apr 22 14:31 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 May 18 16:42 equiv_col
-rw-r--r-- 1 mcc users 3 May 18 16:42 instance
-rw-r--r-- 1 mcc users 6 May 18 16:42 iscolored
-rw-r--r-- 1 mcc users 79K 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 BusinessProcesses-PT-04-ReachabilityFireability-2024-00
FORMULA_NAME BusinessProcesses-PT-04-ReachabilityFireability-2024-01
FORMULA_NAME BusinessProcesses-PT-04-ReachabilityFireability-2024-02
FORMULA_NAME BusinessProcesses-PT-04-ReachabilityFireability-2024-03
FORMULA_NAME BusinessProcesses-PT-04-ReachabilityFireability-2024-04
FORMULA_NAME BusinessProcesses-PT-04-ReachabilityFireability-2024-05
FORMULA_NAME BusinessProcesses-PT-04-ReachabilityFireability-2024-06
FORMULA_NAME BusinessProcesses-PT-04-ReachabilityFireability-2024-07
FORMULA_NAME BusinessProcesses-PT-04-ReachabilityFireability-2024-08
FORMULA_NAME BusinessProcesses-PT-04-ReachabilityFireability-2024-09
FORMULA_NAME BusinessProcesses-PT-04-ReachabilityFireability-2024-10
FORMULA_NAME BusinessProcesses-PT-04-ReachabilityFireability-2024-11
FORMULA_NAME BusinessProcesses-PT-04-ReachabilityFireability-2024-12
FORMULA_NAME BusinessProcesses-PT-04-ReachabilityFireability-2024-13
FORMULA_NAME BusinessProcesses-PT-04-ReachabilityFireability-2024-14
FORMULA_NAME BusinessProcesses-PT-04-ReachabilityFireability-2024-15

=== Now, execution of the tool begins

BK_START 1716333756872

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=ReachabilityFireability
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=BusinessProcesses-PT-04
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
ReachabilityFireability PT
Running Version 202405141337
[2024-05-21 23:22:38] [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]
[2024-05-21 23:22:38] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2024-05-21 23:22:38] [INFO ] Load time of PNML (sax parser for PT used): 95 ms
[2024-05-21 23:22:38] [INFO ] Transformed 288 places.
[2024-05-21 23:22:38] [INFO ] Transformed 283 transitions.
[2024-05-21 23:22:38] [INFO ] Found NUPN structural information;
[2024-05-21 23:22:38] [INFO ] Parsed PT model containing 288 places and 283 transitions and 916 arcs in 243 ms.
Parsed 16 properties from file /home/mcc/execution/ReachabilityFireability.xml in 15 ms.
Working with output stream class java.io.PrintStream
Deduced a syphon composed of 2 places in 3 ms
Reduce places removed 2 places and 2 transitions.
RANDOM walk for 40000 steps (439 resets) in 2190 ms. (18 steps per ms) remains 10/16 properties
FORMULA BusinessProcesses-PT-04-ReachabilityFireability-2024-15 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA BusinessProcesses-PT-04-ReachabilityFireability-2024-11 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA BusinessProcesses-PT-04-ReachabilityFireability-2024-10 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA BusinessProcesses-PT-04-ReachabilityFireability-2024-09 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA BusinessProcesses-PT-04-ReachabilityFireability-2024-08 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA BusinessProcesses-PT-04-ReachabilityFireability-2024-03 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
[2024-05-21 23:22:39] [INFO ] Flatten gal took : 191 ms
BEST_FIRST walk for 40004 steps (97 resets) in 324 ms. (123 steps per ms) remains 10/10 properties
[2024-05-21 23:22:39] [INFO ] Flatten gal took : 70 ms
[2024-05-21 23:22:39] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality12316822479893839247.gal : 41 ms
[2024-05-21 23:22:39] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality2147862429226815813.prop : 26 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/ReachabilityCardinality12316822479893839247.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality2147862429226815813.prop' '--nowitness' '--gen-order' 'FOLLOW'
BEST_FIRST walk for 40004 steps (82 resets) in 678 ms. (58 steps per ms) remains 10/10 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/ReachabilityCardinality2147862429226815813.prop.
BEST_FIRST walk for 40004 steps (94 resets) in 298 ms. (133 steps per ms) remains 10/10 properties
SDD proceeding with computation,10 properties remain. new max is 4
SDD size :1 after 4
SDD proceeding with computation,10 properties remain. new max is 8
SDD size :4 after 14
SDD proceeding with computation,10 properties remain. new max is 16
SDD size :14 after 16
SDD proceeding with computation,10 properties remain. new max is 32
SDD size :16 after 37
SDD proceeding with computation,10 properties remain. new max is 64
SDD size :37 after 221
SDD proceeding with computation,10 properties remain. new max is 128
SDD size :221 after 1209
SDD proceeding with computation,10 properties remain. new max is 256
SDD size :1209 after 20939
BEST_FIRST walk for 40004 steps (125 resets) in 290 ms. (137 steps per ms) remains 10/10 properties
SDD proceeding with computation,10 properties remain. new max is 512
SDD size :20939 after 768425
SDD proceeding with computation,10 properties remain. new max is 1024
SDD size :768425 after 2.25688e+06
BEST_FIRST walk for 40003 steps (93 resets) in 329 ms. (121 steps per ms) remains 10/10 properties
BEST_FIRST walk for 40003 steps (95 resets) in 115 ms. (344 steps per ms) remains 10/10 properties
BEST_FIRST walk for 40003 steps (96 resets) in 149 ms. (266 steps per ms) remains 10/10 properties
SDD proceeding with computation,10 properties remain. new max is 2048
SDD size :2.25688e+06 after 1.30973e+07
BEST_FIRST walk for 40001 steps (88 resets) in 230 ms. (173 steps per ms) remains 9/10 properties
FORMULA BusinessProcesses-PT-04-ReachabilityFireability-2024-12 TRUE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 40004 steps (92 resets) in 102 ms. (388 steps per ms) remains 9/9 properties
BEST_FIRST walk for 40003 steps (88 resets) in 97 ms. (408 steps per ms) remains 9/9 properties
// Phase 1: matrix 281 rows 286 cols
[2024-05-21 23:22:40] [INFO ] Computed 44 invariants in 35 ms
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/97 variables, 97/97 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/97 variables, 0/97 constraints. Problems are: Problem set: 0 solved, 9 unsolved
Problem BusinessProcesses-PT-04-ReachabilityFireability-2024-02 is UNSAT
FORMULA BusinessProcesses-PT-04-ReachabilityFireability-2024-02 FALSE TECHNIQUES SMT_REFINEMENT
At refinement iteration 2 (OVERLAPS) 134/231 variables, 21/118 constraints. Problems are: Problem set: 1 solved, 8 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/231 variables, 134/252 constraints. Problems are: Problem set: 1 solved, 8 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/231 variables, 1/253 constraints. Problems are: Problem set: 1 solved, 8 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/231 variables, 0/253 constraints. Problems are: Problem set: 1 solved, 8 unsolved
Problem BusinessProcesses-PT-04-ReachabilityFireability-2024-01 is UNSAT
FORMULA BusinessProcesses-PT-04-ReachabilityFireability-2024-01 FALSE TECHNIQUES SMT_REFINEMENT
Problem BusinessProcesses-PT-04-ReachabilityFireability-2024-07 is UNSAT
FORMULA BusinessProcesses-PT-04-ReachabilityFireability-2024-07 FALSE TECHNIQUES SMT_REFINEMENT
At refinement iteration 6 (OVERLAPS) 55/286 variables, 22/275 constraints. Problems are: Problem set: 3 solved, 6 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/286 variables, 55/330 constraints. Problems are: Problem set: 3 solved, 6 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/286 variables, 0/330 constraints. Problems are: Problem set: 3 solved, 6 unsolved
Problem BusinessProcesses-PT-04-ReachabilityFireability-2024-06 is UNSAT
FORMULA BusinessProcesses-PT-04-ReachabilityFireability-2024-06 FALSE TECHNIQUES SMT_REFINEMENT
Problem BusinessProcesses-PT-04-ReachabilityFireability-2024-13 is UNSAT
FORMULA BusinessProcesses-PT-04-ReachabilityFireability-2024-13 FALSE TECHNIQUES SMT_REFINEMENT
Problem BusinessProcesses-PT-04-ReachabilityFireability-2024-14 is UNSAT
FORMULA BusinessProcesses-PT-04-ReachabilityFireability-2024-14 FALSE TECHNIQUES SMT_REFINEMENT
At refinement iteration 9 (OVERLAPS) 281/567 variables, 286/616 constraints. Problems are: Problem set: 6 solved, 3 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/567 variables, 0/616 constraints. Problems are: Problem set: 6 solved, 3 unsolved
At refinement iteration 11 (OVERLAPS) 0/567 variables, 0/616 constraints. Problems are: Problem set: 6 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Real declared 567/567 variables, and 616 constraints, problems are : Problem set: 6 solved, 3 unsolved in 1281 ms.
Refiners :[Domain max(s): 286/286 constraints, Positive P Invariants (semi-flows): 21/21 constraints, Generalized P Invariants (flows): 23/23 constraints, State Equation: 286/286 constraints, PredecessorRefiner: 9/9 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 6 solved, 3 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/60 variables, 60/60 constraints. Problems are: Problem set: 6 solved, 3 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/60 variables, 0/60 constraints. Problems are: Problem set: 6 solved, 3 unsolved
Problem BusinessProcesses-PT-04-ReachabilityFireability-2024-00 is UNSAT
FORMULA BusinessProcesses-PT-04-ReachabilityFireability-2024-00 TRUE TECHNIQUES SMT_REFINEMENT
Problem BusinessProcesses-PT-04-ReachabilityFireability-2024-04 is UNSAT
FORMULA BusinessProcesses-PT-04-ReachabilityFireability-2024-04 TRUE TECHNIQUES SMT_REFINEMENT
At refinement iteration 2 (OVERLAPS) 153/213 variables, 20/80 constraints. Problems are: Problem set: 8 solved, 1 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/213 variables, 153/233 constraints. Problems are: Problem set: 8 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/213 variables, 1/234 constraints. Problems are: Problem set: 8 solved, 1 unsolved
[2024-05-21 23:22:42] [INFO ] Deduced a trap composed of 12 places in 97 ms of which 22 ms to minimize.
[2024-05-21 23:22:42] [INFO ] Deduced a trap composed of 24 places in 64 ms of which 1 ms to minimize.
At refinement iteration 5 (INCLUDED_ONLY) 0/213 variables, 2/236 constraints. Problems are: Problem set: 8 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/213 variables, 0/236 constraints. Problems are: Problem set: 8 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 4/217 variables, 1/237 constraints. Problems are: Problem set: 8 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/217 variables, 4/241 constraints. Problems are: Problem set: 8 solved, 1 unsolved
[2024-05-21 23:22:42] [INFO ] Deduced a trap composed of 8 places in 69 ms of which 1 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/217 variables, 1/242 constraints. Problems are: Problem set: 8 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/217 variables, 0/242 constraints. Problems are: Problem set: 8 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 69/286 variables, 22/264 constraints. Problems are: Problem set: 8 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/286 variables, 69/333 constraints. Problems are: Problem set: 8 solved, 1 unsolved
[2024-05-21 23:22:42] [INFO ] Deduced a trap composed of 39 places in 96 ms of which 1 ms to minimize.
Problem BusinessProcesses-PT-04-ReachabilityFireability-2024-05 is UNSAT
FORMULA BusinessProcesses-PT-04-ReachabilityFireability-2024-05 TRUE TECHNIQUES SMT_REFINEMENT
After SMT solving in domain Int declared 286/567 variables, and 334 constraints, problems are : Problem set: 9 solved, 0 unsolved in 605 ms.
Refiners :[Domain max(s): 286/286 constraints, Positive P Invariants (semi-flows): 21/21 constraints, Generalized P Invariants (flows): 23/23 constraints, State Equation: 0/286 constraints, PredecessorRefiner: 0/9 constraints, Known Traps: 4/4 constraints]
After SMT, in 2033ms problems are : Problem set: 9 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.
All properties solved without resorting to model-checking.
Total runtime 4206 ms.

BK_STOP 1716333762749

--------------------
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:
++ ls /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202405141337.jar
++ sed s/.jar//
++ perl -pe 's/.*\.//g'
+ 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="BusinessProcesses-PT-04"
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 BusinessProcesses-PT-04, 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 r048-tajo-171620399600479"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/BusinessProcesses-PT-04.tgz
mv BusinessProcesses-PT-04 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 ;