Execution Chart

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

Trace from the execution

Formatting '/data/fkordon/mcc2023-input.r478-smll-167912663600246.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2023-input.qcow2 cluster_size=65536 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
...................................................................................................................................................
=====================================================================
Generated by BenchKit 2-5348
Executing tool gold2022
Input is Solitaire-PT-FrnCT7x7, examination is ReachabilityFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r478-smll-167912663600246
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 500K
-rw-r--r-- 1 mcc users 6.0K Feb 26 13:00 CTLCardinality.txt
-rw-r--r-- 1 mcc users 61K Feb 26 13:00 CTLCardinality.xml
-rw-r--r-- 1 mcc users 4.8K Feb 26 12:59 CTLFireability.txt
-rw-r--r-- 1 mcc users 38K Feb 26 12:59 CTLFireability.xml
-rw-r--r-- 1 mcc users 6 Mar 5 18:23 equiv_col
-rw-r--r-- 1 mcc users 4.2K Jan 29 11:41 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.8K Jan 29 11:41 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 9 Mar 5 18:23 instance
-rw-r--r-- 1 mcc users 6 Mar 5 18:23 iscolored
-rw-r--r-- 1 mcc users 3.7K Feb 25 17:10 LTLCardinality.txt
-rw-r--r-- 1 mcc users 27K Feb 25 17:10 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.3K Feb 25 17:10 LTLFireability.txt
-rw-r--r-- 1 mcc users 17K Feb 25 17:10 LTLFireability.xml
-rw-r--r-- 1 mcc users 92K Mar 5 18:23 model.pnml
-rw-r--r-- 1 mcc users 8.2K Feb 26 13:01 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 85K Feb 26 13:01 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 9.7K Feb 26 13:01 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 81K Feb 26 13:01 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K Feb 25 17:10 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K Feb 25 17:10 UpperBounds.xml

--------------------
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 Solitaire-PT-FrnCT7x7-ReachabilityFireability-00
FORMULA_NAME Solitaire-PT-FrnCT7x7-ReachabilityFireability-01
FORMULA_NAME Solitaire-PT-FrnCT7x7-ReachabilityFireability-02
FORMULA_NAME Solitaire-PT-FrnCT7x7-ReachabilityFireability-03
FORMULA_NAME Solitaire-PT-FrnCT7x7-ReachabilityFireability-04
FORMULA_NAME Solitaire-PT-FrnCT7x7-ReachabilityFireability-05
FORMULA_NAME Solitaire-PT-FrnCT7x7-ReachabilityFireability-06
FORMULA_NAME Solitaire-PT-FrnCT7x7-ReachabilityFireability-07
FORMULA_NAME Solitaire-PT-FrnCT7x7-ReachabilityFireability-08
FORMULA_NAME Solitaire-PT-FrnCT7x7-ReachabilityFireability-09
FORMULA_NAME Solitaire-PT-FrnCT7x7-ReachabilityFireability-10
FORMULA_NAME Solitaire-PT-FrnCT7x7-ReachabilityFireability-11
FORMULA_NAME Solitaire-PT-FrnCT7x7-ReachabilityFireability-12
FORMULA_NAME Solitaire-PT-FrnCT7x7-ReachabilityFireability-13
FORMULA_NAME Solitaire-PT-FrnCT7x7-ReachabilityFireability-14
FORMULA_NAME Solitaire-PT-FrnCT7x7-ReachabilityFireability-15

=== Now, execution of the tool begins

BK_START 1679541773503

gold2022
Got BK_BIN_PATH=/home/mcc/BenchKit/bin/
---> gold2022 --- TAPAAL v5
Setting MODEL_PATH=.
Setting VERIFYPN=/home/mcc/BenchKit/bin/verifypn
Got BK_TIME_CONFINEMENT=3600
Setting TEMPDIR=/home/mcc/BenchKit/bin/tmp
Got BK_MEMORY_CONFINEMENT=16384
Limiting to 16265216 kB
Total timeout: 3590
Time left: 3590

**********************************************
* TAPAAL verifying ReachabilityFireability *
**********************************************
TEMPDIR=/home/mcc/BenchKit/bin/tmp
QF=/home/mcc/BenchKit/bin/tmp/tmp.W73z441GR6
MF=/home/mcc/BenchKit/bin/tmp/tmp.cF0egvhrez
Time left: 3590
---------------------------------------------------
Step -1: Stripping Colors
---------------------------------------------------
Verifying stripped models (16 in total)
/home/mcc/BenchKit/bin/verifypn -n -c -q 718 -l 29 -d 299 -z 4 -x 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16 ./model.pnml ./ReachabilityFireability.xml
CPN OverApproximation is only usable on colored models
Time left: 3590
---------------------------------------------------
Step 0: Parallel Simplification
---------------------------------------------------
Doing parallel simplification (16 in total)
Total simplification timout is 718 -- reduction timeout is 299
timeout 3590 /home/mcc/BenchKit/bin/verifypn -n -q 718 -l 29 -d 299 -z 4 -s OverApprox --binary-query-io 2 --write-simplified /home/mcc/BenchKit/bin/tmp/tmp.W73z441GR6 --write-reduced /home/mcc/BenchKit/bin/tmp/tmp.cF0egvhrez -x 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16 ./model.pnml ./ReachabilityFireability.xml
FORMULA Solitaire-PT-FrnCT7x7-ReachabilityFireability-03 FALSE TECHNIQUES COLLATERAL_PROCESSING STRUCTURAL_REDUCTION QUERY_REDUCTION SAT_SMT LP_APPROX
Query index 3 was solved

Query is NOT satisfied.

FORMULA Solitaire-PT-FrnCT7x7-ReachabilityFireability-05 TRUE TECHNIQUES COLLATERAL_PROCESSING STRUCTURAL_REDUCTION QUERY_REDUCTION SAT_SMT LP_APPROX
Query index 5 was solved

Query is satisfied.

FORMULA Solitaire-PT-FrnCT7x7-ReachabilityFireability-08 FALSE TECHNIQUES COLLATERAL_PROCESSING STRUCTURAL_REDUCTION QUERY_REDUCTION SAT_SMT LP_APPROX
Query index 8 was solved

Query is NOT satisfied.

FORMULA Solitaire-PT-FrnCT7x7-ReachabilityFireability-09 FALSE TECHNIQUES COLLATERAL_PROCESSING STRUCTURAL_REDUCTION QUERY_REDUCTION SAT_SMT LP_APPROX
Query index 9 was solved

Query is NOT satisfied.

FORMULA Solitaire-PT-FrnCT7x7-ReachabilityFireability-10 TRUE TECHNIQUES COLLATERAL_PROCESSING STRUCTURAL_REDUCTION QUERY_REDUCTION SAT_SMT LP_APPROX
Query index 10 was solved

Query is satisfied.

FORMULA Solitaire-PT-FrnCT7x7-ReachabilityFireability-15 TRUE TECHNIQUES COLLATERAL_PROCESSING STRUCTURAL_REDUCTION QUERY_REDUCTION SAT_SMT LP_APPROX
Query index 15 was solved

Query is satisfied.
Solution found by parallel simplification (step 0)
Solution found by parallel simplification (step 0)
Solution found by parallel simplification (step 0)
Solution found by parallel simplification (step 0)
Solution found by parallel simplification (step 0)
Solution found by parallel simplification (step 0)
Time left: 3589

---------------------------------------------------
Step 1: Parallel processing
---------------------------------------------------
Doing parallel verification of individual queries (10 in total)
Each query is verified by 4 parallel strategies for 256 seconds
------------------- QUERY 1 ----------------------
Solution found by parallel processing (step 1)
Query index 0 was solved

Query is satisfied.

Spent 0.002317 on verification
@@@0.01,7660@@@
parallel: This job succeeded:
eval /usr/bin/time -f "@@@%e,%M@@@" /home/mcc/BenchKit/bin/verifypn -n -s\ BestFS\ -q\ 0\ -l\ 0\ -d\ 119 /home/mcc/BenchKit/bin/tmp/tmp.cF0egvhrez /home/mcc/BenchKit/bin/tmp/tmp.W73z441GR6 --binary-query-io 1 -x 1 -n

FORMULA Solitaire-PT-FrnCT7x7-ReachabilityFireability-00 TRUE TECHNIQUES COLLATERAL_PROCESSING STRUCTURAL_REDUCTION QUERY_REDUCTION SAT_SMT EXPLICIT STATE_COMPRESSION STUBBORN_SETS
Time left: 3589
------------------- QUERY 2 ----------------------
Solution found by parallel processing (step 1)
Search strategy option was ignored as the TAR engine is called.
Query index 0 was solved

Query is satisfied.


Solved using Trace Abstraction Refinement

Spent 0.000537 on verification
@@@0.00,5848@@@
parallel: This job succeeded:
eval /usr/bin/time -f "@@@%e,%M@@@" /home/mcc/BenchKit/bin/verifypn -n -tar\ -s\ RDFS\ -q\ 0\ -l\ 0\ -d\ 119 /home/mcc/BenchKit/bin/tmp/tmp.cF0egvhrez /home/mcc/BenchKit/bin/tmp/tmp.W73z441GR6 --binary-query-io 1 -x 2 -n
FORMULA Solitaire-PT-FrnCT7x7-ReachabilityFireability-07 TRUE TECHNIQUES COLLATERAL_PROCESSING STRUCTURAL_REDUCTION QUERY_REDUCTION SAT_SMT EXPLICIT STATE_COMPRESSION STUBBORN_SETS
Query index 0 was solved

Query is satisfied.

Spent 0.001626 on verification
@@@0.00,7660@@@
parallel: This job succeeded:
eval /usr/bin/time -f "@@@%e,%M@@@" /home/mcc/BenchKit/bin/verifypn -n -s\ BestFS\ -q\ 0\ -l\ 0\ -d\ 119 /home/mcc/BenchKit/bin/tmp/tmp.cF0egvhrez /home/mcc/BenchKit/bin/tmp/tmp.W73z441GR6 --binary-query-io 1 -x 2 -n

FORMULA Solitaire-PT-FrnCT7x7-ReachabilityFireability-07 TRUE TECHNIQUES COLLATERAL_PROCESSING STRUCTURAL_REDUCTION QUERY_REDUCTION SAT_SMT TRACE_ABSTRACTION_REFINEMENT
Time left: 3589
------------------- QUERY 3 ----------------------
Solution found by parallel processing (step 1)
Query index 0 was solved

Query is NOT satisfied.

Spent 0.001759 on verification
Query index 0 was solved

Query is NOT satisfied.

Spent 0.001944 on verification
@@@0.01,7664@@@
Query index 0 was solved

Query is NOT satisfied.

Spent 0.002184 on verification
@@@0.00,7448@@@
parallel: This job succeeded:
eval /usr/bin/time -f "@@@%e,%M@@@" /home/mcc/BenchKit/bin/verifypn -n -s\ BestFS\ -q\ 0\ -l\ 0\ -d\ 119 /home/mcc/BenchKit/bin/tmp/tmp.cF0egvhrez /home/mcc/BenchKit/bin/tmp/tmp.W73z441GR6 --binary-query-io 1 -x 3 -n

FORMULA Solitaire-PT-FrnCT7x7-ReachabilityFireability-14 FALSE TECHNIQUES COLLATERAL_PROCESSING STRUCTURAL_REDUCTION QUERY_REDUCTION SAT_SMT EXPLICIT STATE_COMPRESSION STUBBORN_SETS
Time left: 3588
------------------- QUERY 4 ----------------------
Solution found by parallel processing (step 1)
Query index 0 was solved

Query is satisfied.

Spent 0.09975 on verification
@@@0.10,7988@@@
parallel: This job succeeded:
eval /usr/bin/time -f "@@@%e,%M@@@" /home/mcc/BenchKit/bin/verifypn -n -s\ BestFS\ -q\ 0\ -l\ 0\ -d\ 119 /home/mcc/BenchKit/bin/tmp/tmp.cF0egvhrez /home/mcc/BenchKit/bin/tmp/tmp.W73z441GR6 --binary-query-io 1 -x 4 -n

FORMULA Solitaire-PT-FrnCT7x7-ReachabilityFireability-01 TRUE TECHNIQUES COLLATERAL_PROCESSING STRUCTURAL_REDUCTION QUERY_REDUCTION SAT_SMT EXPLICIT STATE_COMPRESSION STUBBORN_SETS
Time left: 3588
------------------- QUERY 5 ----------------------
Solution found by parallel processing (step 1)
Search strategy option was ignored as the TAR engine is called.
Query index 0 was solved

Query is NOT satisfied.


Solved using Trace Abstraction Refinement

Spent 0.001225 on verification
@@@0.00,5628@@@
parallel: This job succeeded:
eval /usr/bin/time -f "@@@%e,%M@@@" /home/mcc/BenchKit/bin/verifypn -n -tar\ -s\ RDFS\ -q\ 0\ -l\ 0\ -d\ 119 /home/mcc/BenchKit/bin/tmp/tmp.cF0egvhrez /home/mcc/BenchKit/bin/tmp/tmp.W73z441GR6 --binary-query-io 1 -x 5 -n

FORMULA Solitaire-PT-FrnCT7x7-ReachabilityFireability-13 FALSE TECHNIQUES COLLATERAL_PROCESSING STRUCTURAL_REDUCTION QUERY_REDUCTION SAT_SMT TRACE_ABSTRACTION_REFINEMENT
Time left: 3588
------------------- QUERY 6 ----------------------
Solution found by parallel processing (step 1)
Query index 0 was solved

Query is satisfied.

Spent 0.013541 on verification
@@@0.02,7560@@@
parallel: This job succeeded:
eval /usr/bin/time -f "@@@%e,%M@@@" /home/mcc/BenchKit/bin/verifypn -n -s\ BestFS\ -q\ 0\ -l\ 0\ -d\ 119 /home/mcc/BenchKit/bin/tmp/tmp.cF0egvhrez /home/mcc/BenchKit/bin/tmp/tmp.W73z441GR6 --binary-query-io 1 -x 6 -n

FORMULA Solitaire-PT-FrnCT7x7-ReachabilityFireability-02 TRUE TECHNIQUES COLLATERAL_PROCESSING STRUCTURAL_REDUCTION QUERY_REDUCTION SAT_SMT EXPLICIT STATE_COMPRESSION STUBBORN_SETS
Time left: 3588
------------------- QUERY 7 ----------------------
Solution found by parallel processing (step 1)
Query index 0 was solved

Query is satisfied.

Search strategy option was ignored as the TAR engine is called.
FORMULA Solitaire-PT-FrnCT7x7-ReachabilityFireability-11 TRUE TECHNIQUES COLLATERAL_PROCESSING STRUCTURAL_REDUCTION QUERY_REDUCTION SAT_SMT TRACE_ABSTRACTION_REFINEMENT
Query index 0 was solved

Query is satisfied.


Solved using Trace Abstraction Refinement

Spent 0.017332 on verification
Spent 0.004532 on verification
@@@0.01,7320@@@
@@@0.02,5924@@@
parallel: This job succeeded:
eval /usr/bin/time -f "@@@%e,%M@@@" /home/mcc/BenchKit/bin/verifypn -n -tar\ -s\ RDFS\ -q\ 0\ -l\ 0\ -d\ 119 /home/mcc/BenchKit/bin/tmp/tmp.cF0egvhrez /home/mcc/BenchKit/bin/tmp/tmp.W73z441GR6 --binary-query-io 1 -x 7 -n
parallel: This job succeeded:
eval /usr/bin/time -f "@@@%e,%M@@@" /home/mcc/BenchKit/bin/verifypn -n -s\ BestFS\ -q\ 0\ -l\ 0\ -d\ 119 /home/mcc/BenchKit/bin/tmp/tmp.cF0egvhrez /home/mcc/BenchKit/bin/tmp/tmp.W73z441GR6 --binary-query-io 1 -x 7 -n

FORMULA Solitaire-PT-FrnCT7x7-ReachabilityFireability-11 TRUE TECHNIQUES COLLATERAL_PROCESSING STRUCTURAL_REDUCTION QUERY_REDUCTION SAT_SMT EXPLICIT STATE_COMPRESSION STUBBORN_SETS
Time left: 3587
------------------- QUERY 8 ----------------------
Solution found by parallel processing (step 1)
Query index 0 was solved

Query is NOT satisfied.

Spent 0.014338 on verification
Query index 0 was solved

Query is NOT satisfied.

Spent 0.004476 on verification
@@@0.01,7576@@@
parallel: This job succeeded:
eval /usr/bin/time -f "@@@%e,%M@@@" /home/mcc/BenchKit/bin/verifypn -n -s\ BestFS\ -q\ 0\ -l\ 0\ -d\ 119 /home/mcc/BenchKit/bin/tmp/tmp.cF0egvhrez /home/mcc/BenchKit/bin/tmp/tmp.W73z441GR6 --binary-query-io 1 -x 8 -n
@@@0.02,7792@@@
parallel: This job succeeded:
eval /usr/bin/time -f "@@@%e,%M@@@" /home/mcc/BenchKit/bin/verifypn -n -s\ BFS\ -q\ 0\ -l\ 0\ -d\ 119 /home/mcc/BenchKit/bin/tmp/tmp.cF0egvhrez /home/mcc/BenchKit/bin/tmp/tmp.W73z441GR6 --binary-query-io 1 -x 8 -n

FORMULA Solitaire-PT-FrnCT7x7-ReachabilityFireability-12 FALSE TECHNIQUES COLLATERAL_PROCESSING STRUCTURAL_REDUCTION QUERY_REDUCTION SAT_SMT EXPLICIT STATE_COMPRESSION STUBBORN_SETS
Time left: 3587
------------------- QUERY 9 ----------------------
Solution found by parallel processing (step 1)
Query index 0 was solved

Query is NOT satisfied.

Spent 0.148357 on verification
@@@0.15,8768@@@
parallel: This job succeeded:
eval /usr/bin/time -f "@@@%e,%M@@@" /home/mcc/BenchKit/bin/verifypn -n -s\ BestFS\ -q\ 0\ -l\ 0\ -d\ 119 /home/mcc/BenchKit/bin/tmp/tmp.cF0egvhrez /home/mcc/BenchKit/bin/tmp/tmp.W73z441GR6 --binary-query-io 1 -x 9 -n

FORMULA Solitaire-PT-FrnCT7x7-ReachabilityFireability-04 FALSE TECHNIQUES COLLATERAL_PROCESSING STRUCTURAL_REDUCTION QUERY_REDUCTION SAT_SMT EXPLICIT STATE_COMPRESSION STUBBORN_SETS
Time left: 3587
------------------- QUERY 10 ----------------------
Solution found by parallel processing (step 1)
Query index 0 was solved

Query is satisfied.

Spent 0.052966 on verification
@@@0.05,7268@@@
parallel: This job succeeded:
eval /usr/bin/time -f "@@@%e,%M@@@" /home/mcc/BenchKit/bin/verifypn -n -s\ BestFS\ -q\ 0\ -l\ 0\ -d\ 119 /home/mcc/BenchKit/bin/tmp/tmp.cF0egvhrez /home/mcc/BenchKit/bin/tmp/tmp.W73z441GR6 --binary-query-io 1 -x 10 -n

FORMULA Solitaire-PT-FrnCT7x7-ReachabilityFireability-06 TRUE TECHNIQUES COLLATERAL_PROCESSING STRUCTURAL_REDUCTION QUERY_REDUCTION SAT_SMT EXPLICIT STATE_COMPRESSION STUBBORN_SETS
Time left: 3586
All queries are solved
Time left: 3586
terminated-with-cleanup

BK_STOP 1679541777286

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

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="Solitaire-PT-FrnCT7x7"
export BK_EXAMINATION="ReachabilityFireability"
export BK_TOOL="gold2022"
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 2-5348"
echo " Executing tool gold2022"
echo " Input is Solitaire-PT-FrnCT7x7, 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 r478-smll-167912663600246"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/Solitaire-PT-FrnCT7x7.tgz
mv Solitaire-PT-FrnCT7x7 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 ;