Execution Chart

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

Trace from the execution

Formatting '/data/fkordon/mcc2025-input.r264-tall-174931348800136.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2025-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 2-5832
Executing tool gold2024
Input is CopsAndRobbers-PT-CRL015X005, examination is LTLFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r264-tall-174931348800136
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 556K
-rw-r--r-- 1 mcc users 7.7K Jun 6 09:00 CTLCardinality.txt
-rw-r--r-- 1 mcc users 69K Jun 6 09:00 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.8K Jun 6 08:58 CTLFireability.txt
-rw-r--r-- 1 mcc users 35K Jun 6 08:58 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.7K Jun 6 11:47 LTLCardinality.txt
-rw-r--r-- 1 mcc users 28K Jun 6 11:47 LTLCardinality.xml
-rw-r--r-- 1 mcc users 3.2K Jun 6 11:48 LTLFireability.txt
-rw-r--r-- 1 mcc users 19K Jun 6 11:48 LTLFireability.xml
-rw-r--r-- 1 mcc users 1 Jun 5 20:08 NewModel
-rw-r--r-- 1 mcc users 16K Jun 6 09:02 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 134K Jun 6 09:02 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 15K Jun 6 09:01 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 93K Jun 6 09:01 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 2.0K Jun 6 11:48 UpperBounds.txt
-rw-r--r-- 1 mcc users 4.0K Jun 6 11:48 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Jun 5 20:08 equiv_col
-rw-r--r-- 1 mcc users 11 Jun 5 20:08 instance
-rw-r--r-- 1 mcc users 6 Jun 5 20:08 iscolored
-rw-r--r-- 1 mcc users 83K Jun 5 20:08 model.pnml

--------------------
content from stdout:

=== Data for post analysis generated by BenchKit (invocation template)

The expected result is a vector of booleans
BOOL_VECTOR

echo here is the order used to build the result vector(from xml file)
FORMULA_NAME CopsAndRobbers-PT-CRL015X005-LTLFireability-00
FORMULA_NAME CopsAndRobbers-PT-CRL015X005-LTLFireability-01
FORMULA_NAME CopsAndRobbers-PT-CRL015X005-LTLFireability-02
FORMULA_NAME CopsAndRobbers-PT-CRL015X005-LTLFireability-03
FORMULA_NAME CopsAndRobbers-PT-CRL015X005-LTLFireability-04
FORMULA_NAME CopsAndRobbers-PT-CRL015X005-LTLFireability-05
FORMULA_NAME CopsAndRobbers-PT-CRL015X005-LTLFireability-06
FORMULA_NAME CopsAndRobbers-PT-CRL015X005-LTLFireability-07
FORMULA_NAME CopsAndRobbers-PT-CRL015X005-LTLFireability-08
FORMULA_NAME CopsAndRobbers-PT-CRL015X005-LTLFireability-09
FORMULA_NAME CopsAndRobbers-PT-CRL015X005-LTLFireability-10
FORMULA_NAME CopsAndRobbers-PT-CRL015X005-LTLFireability-11
FORMULA_NAME CopsAndRobbers-PT-CRL015X005-LTLFireability-12
FORMULA_NAME CopsAndRobbers-PT-CRL015X005-LTLFireability-13
FORMULA_NAME CopsAndRobbers-PT-CRL015X005-LTLFireability-14
FORMULA_NAME CopsAndRobbers-PT-CRL015X005-LTLFireability-15

=== Now, execution of the tool begins

BK_START 1749347958003

gold2024
Got BK_BIN_PATH=/home/mcc/BenchKit/bin/
---> gold2024 --- TAPAAL - v2.2024
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 LTLFireability *
*************************************
TEMPDIR=/home/mcc/BenchKit/bin/tmp
QF=/home/mcc/BenchKit/bin/tmp/tmp.uWpMFTSWwM
MF=/home/mcc/BenchKit/bin/tmp/tmp.cZj0dhSP9j
Time left: 3590
---------------------------------------------------
Step -1: Stripping Colors
---------------------------------------------------
Verifying stripped models (16 in total)

Time left: 3590
---------------------------------------------------
Step 0: Parallel Simplification
---------------------------------------------------
Doing parallel simplification (16 in total)
Total simplification timout is 718 -- reduction timeout is 299
timeout 1017 /home/mcc/BenchKit/bin/verifypn -n -ltl -q 718 -l 29 -d 299 -z 4 -s OverApprox --binary-query-io 2 --write-simplified /home/mcc/BenchKit/bin/tmp/tmp.uWpMFTSWwM --write-reduced /home/mcc/BenchKit/bin/tmp/tmp.cZj0dhSP9j -x 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16 ./model.pnml ./LTLFireability.xml

FORMULA CopsAndRobbers-PT-CRL015X005-LTLFireability-02 FALSE TECHNIQUES COLLATERAL_PROCESSING STRUCTURAL_REDUCTION QUERY_REDUCTION SAT_SMT LP_APPROX
Query index 2 was solved

Query is NOT satisfied.

FORMULA CopsAndRobbers-PT-CRL015X005-LTLFireability-08 FALSE TECHNIQUES COLLATERAL_PROCESSING STRUCTURAL_REDUCTION QUERY_REDUCTION SAT_SMT LP_APPROX
Query index 8 was solved

Query is NOT satisfied.

FORMULA CopsAndRobbers-PT-CRL015X005-LTLFireability-14 FALSE TECHNIQUES COLLATERAL_PROCESSING STRUCTURAL_REDUCTION QUERY_REDUCTION SAT_SMT LP_APPROX
Query index 14 was solved

Query is NOT satisfied.
Solution found by parallel simplification (step 0)
Solution found by parallel simplification (step 0)
Solution found by parallel simplification (step 0)
Time left: 3586

---------------------------------------------------
Step 1: Parallel processing
---------------------------------------------------
Doing parallel verification of individual queries (13 in total)
Each query is verified by 4 parallel strategies for 299 seconds
------------------- QUERY 1 ----------------------
Solution found by parallel processing (step 1)

Query index 0 was solved
Query is NOT satisfied.
Spent 0.050207 on verification
@@@0.05,147908@@@
parallel: This job succeeded:
eval /usr/bin/time -f "@@@%e,%M@@@" /home/mcc/BenchKit/bin/verifypn -n '-ltl tarjan --ltl-heur fire-count -q 0 -l 0 -d 119' /home/mcc/BenchKit/bin/tmp/tmp.cZj0dhSP9j /home/mcc/BenchKit/bin/tmp/tmp.uWpMFTSWwM --binary-query-io 1 -x 1 -n

FORMULA CopsAndRobbers-PT-CRL015X005-LTLFireability-10 FALSE TECHNIQUES EXPLICIT TARJAN WEAK_SKIP STUBBORN AUT_STUB HEURISTIC LOGFIRECOUNT_HEUR(5000) OPTIM-1
Time left: 3586
------------------- QUERY 2 ----------------------
Solution found by parallel processing (step 1)

Query index 0 was solved
Query is NOT satisfied.
Spent 0.05784 on verification
@@@0.06,147888@@@
parallel: This job succeeded:
eval /usr/bin/time -f "@@@%e,%M@@@" /home/mcc/BenchKit/bin/verifypn -n '-ltl tarjan --ltl-heur dist -q 0 -l 0 -d 119' /home/mcc/BenchKit/bin/tmp/tmp.cZj0dhSP9j /home/mcc/BenchKit/bin/tmp/tmp.uWpMFTSWwM --binary-query-io 1 -x 2 -n

FORMULA CopsAndRobbers-PT-CRL015X005-LTLFireability-12 FALSE TECHNIQUES EXPLICIT TARJAN WEAK_SKIP STUBBORN AUT_STUB HEURISTIC DIST_HEUR OPTIM-1
Time left: 3586
------------------- QUERY 3 ----------------------
Solution found by parallel processing (step 1)

Query index 0 was solved
Query is NOT satisfied.
Spent 0.008223 on verification
@@@0.02,19936@@@
parallel: This job succeeded:
eval /usr/bin/time -f "@@@%e,%M@@@" /home/mcc/BenchKit/bin/verifypn -n '-ltl ndfs -q 0 -l 0 -d 119' /home/mcc/BenchKit/bin/tmp/tmp.cZj0dhSP9j /home/mcc/BenchKit/bin/tmp/tmp.uWpMFTSWwM --binary-query-io 1 -x 3 -n

FORMULA CopsAndRobbers-PT-CRL015X005-LTLFireability-05 FALSE TECHNIQUES EXPLICIT NDFS WEAK_SKIP HEURISTIC AUTOMATON_HEUR OPTIM-1
Time left: 3585
------------------- QUERY 4 ----------------------
Solution found by parallel processing (step 1)

Query index 0 was solved
Query is satisfied.
Spent 6.16333 on verification
@@@6.18,218592@@@
parallel: This job succeeded:
eval /usr/bin/time -f "@@@%e,%M@@@" /home/mcc/BenchKit/bin/verifypn -n '-ltl tarjan --ltl-heur fire-count -q 0 -l 0 -d 119' /home/mcc/BenchKit/bin/tmp/tmp.cZj0dhSP9j /home/mcc/BenchKit/bin/tmp/tmp.uWpMFTSWwM --binary-query-io 1 -x 4 -n

FORMULA CopsAndRobbers-PT-CRL015X005-LTLFireability-13 TRUE TECHNIQUES EXPLICIT TARJAN WEAK_SKIP STUBBORN AUT_STUB HEURISTIC LOGFIRECOUNT_HEUR(5000) OPTIM-1
Time left: 3579
------------------- QUERY 5 ----------------------
Solution found by parallel processing (step 1)

Query index 0 was solved
Query is NOT satisfied.
Spent 0.063459 on verification
FORMULA CopsAndRobbers-PT-CRL015X005-LTLFireability-15 FALSE TECHNIQUES EXPLICIT TARJAN WEAK_SKIP OPTIM-1

Query index 0 was solved
Query is NOT satisfied.
Spent 0.066526 on verification
@@@0.08,148436@@@
parallel: This job succeeded:
eval /usr/bin/time -f "@@@%e,%M@@@" /home/mcc/BenchKit/bin/verifypn -n '-ltl tarjan --ltl-heur dist -q 0 -l 0 -d 119' /home/mcc/BenchKit/bin/tmp/tmp.cZj0dhSP9j /home/mcc/BenchKit/bin/tmp/tmp.uWpMFTSWwM --binary-query-io 1 -x 5 -n
@@@0.08,148388@@@
parallel: This job succeeded:
eval /usr/bin/time -f "@@@%e,%M@@@" /home/mcc/BenchKit/bin/verifypn -n '-ltl tarjan --ltl-heur aut -s DFS -p -q 0 -l 0 -d 119' /home/mcc/BenchKit/bin/tmp/tmp.cZj0dhSP9j /home/mcc/BenchKit/bin/tmp/tmp.uWpMFTSWwM --binary-query-io 1 -x 5 -n

FORMULA CopsAndRobbers-PT-CRL015X005-LTLFireability-15 FALSE TECHNIQUES EXPLICIT TARJAN WEAK_SKIP STUBBORN AUT_STUB HEURISTIC DIST_HEUR OPTIM-1
Time left: 3579
------------------- QUERY 6 ----------------------
Solution found by parallel processing (step 1)

Query index 0 was solved
Query is NOT satisfied.
Spent 0.010443 on verification
@@@0.02,21672@@@
FORMULA CopsAndRobbers-PT-CRL015X005-LTLFireability-09 FALSE TECHNIQUES EXPLICIT TARJAN WEAK_SKIP STUBBORN AUT_STUB HEURISTIC DIST_HEUR OPTIM-1

Query index 0 was solved
Query is NOT satisfied.
Spent 0.054918 on verification
@@@0.06,147708@@@
FORMULA CopsAndRobbers-PT-CRL015X005-LTLFireability-09 FALSE TECHNIQUES EXPLICIT TARJAN WEAK_SKIP STUBBORN AUT_STUB HEURISTIC LOGFIRECOUNT_HEUR(5000) OPTIM-1

Query index 0 was solved
Query is NOT satisfied.
Spent 0.052589 on verification
@@@0.05,147672@@@
parallel: This job succeeded:
eval /usr/bin/time -f "@@@%e,%M@@@" /home/mcc/BenchKit/bin/verifypn -n '-ltl tarjan --ltl-heur fire-count -q 0 -l 0 -d 119' /home/mcc/BenchKit/bin/tmp/tmp.cZj0dhSP9j /home/mcc/BenchKit/bin/tmp/tmp.uWpMFTSWwM --binary-query-io 1 -x 6 -n
parallel: This job succeeded:
eval /usr/bin/time -f "@@@%e,%M@@@" /home/mcc/BenchKit/bin/verifypn -n '-ltl tarjan --ltl-heur dist -q 0 -l 0 -d 119' /home/mcc/BenchKit/bin/tmp/tmp.cZj0dhSP9j /home/mcc/BenchKit/bin/tmp/tmp.uWpMFTSWwM --binary-query-io 1 -x 6 -n
parallel: This job succeeded:
eval /usr/bin/time -f "@@@%e,%M@@@" /home/mcc/BenchKit/bin/verifypn -n '-ltl ndfs -q 0 -l 0 -d 119' /home/mcc/BenchKit/bin/tmp/tmp.cZj0dhSP9j /home/mcc/BenchKit/bin/tmp/tmp.uWpMFTSWwM --binary-query-io 1 -x 6 -n

FORMULA CopsAndRobbers-PT-CRL015X005-LTLFireability-09 FALSE TECHNIQUES EXPLICIT NDFS WEAK_SKIP HEURISTIC AUTOMATON_HEUR OPTIM-1
Time left: 3578
------------------- QUERY 7 ----------------------
Solution found by parallel processing (step 1)

Query index 0 was solved
Query is NOT satisfied.
Spent 1.04788 on verification
@@@1.05,153260@@@
parallel: This job succeeded:
eval /usr/bin/time -f "@@@%e,%M@@@" /home/mcc/BenchKit/bin/verifypn -n '-ltl tarjan --ltl-heur aut -s DFS -p -q 0 -l 0 -d 119' /home/mcc/BenchKit/bin/tmp/tmp.cZj0dhSP9j /home/mcc/BenchKit/bin/tmp/tmp.uWpMFTSWwM --binary-query-io 1 -x 7 -n

FORMULA CopsAndRobbers-PT-CRL015X005-LTLFireability-11 FALSE TECHNIQUES EXPLICIT TARJAN WEAK_SKIP OPTIM-1
Time left: 3577
------------------- QUERY 8 ----------------------
Solution found by parallel processing (step 1)

Query index 0 was solved
Query is NOT satisfied.
Spent 0.013175 on verification
@@@0.01,20992@@@
parallel: This job succeeded:
eval /usr/bin/time -f "@@@%e,%M@@@" /home/mcc/BenchKit/bin/verifypn -n '-ltl ndfs -q 0 -l 0 -d 119' /home/mcc/BenchKit/bin/tmp/tmp.cZj0dhSP9j /home/mcc/BenchKit/bin/tmp/tmp.uWpMFTSWwM --binary-query-io 1 -x 8 -n

FORMULA CopsAndRobbers-PT-CRL015X005-LTLFireability-01 FALSE TECHNIQUES EXPLICIT NDFS WEAK_SKIP HEURISTIC AUTOMATON_HEUR OPTIM-1
Time left: 3577
------------------- QUERY 9 ----------------------
Solution found by parallel processing (step 1)

Query index 0 was solved
Query is satisfied.
Spent 0.578956 on verification
@@@0.58,150068@@@
parallel: This job succeeded:
eval /usr/bin/time -f "@@@%e,%M@@@" /home/mcc/BenchKit/bin/verifypn -n '-ltl tarjan --ltl-heur dist -q 0 -l 0 -d 119' /home/mcc/BenchKit/bin/tmp/tmp.cZj0dhSP9j /home/mcc/BenchKit/bin/tmp/tmp.uWpMFTSWwM --binary-query-io 1 -x 9 -n

FORMULA CopsAndRobbers-PT-CRL015X005-LTLFireability-04 TRUE TECHNIQUES EXPLICIT TARJAN WEAK_SKIP STUBBORN AUT_STUB HEURISTIC DIST_HEUR OPTIM-1
Time left: 3576
------------------- QUERY 10 ----------------------
Solution found by parallel processing (step 1)

Query index 0 was solved
Query is NOT satisfied.
Spent 0.013537 on verification
@@@0.02,21124@@@
parallel: This job succeeded:
eval /usr/bin/time -f "@@@%e,%M@@@" /home/mcc/BenchKit/bin/verifypn -n '-ltl ndfs -q 0 -l 0 -d 119' /home/mcc/BenchKit/bin/tmp/tmp.cZj0dhSP9j /home/mcc/BenchKit/bin/tmp/tmp.uWpMFTSWwM --binary-query-io 1 -x 10 -n

FORMULA CopsAndRobbers-PT-CRL015X005-LTLFireability-06 FALSE TECHNIQUES EXPLICIT NDFS WEAK_SKIP HEURISTIC AUTOMATON_HEUR OPTIM-1
Time left: 3576
------------------- QUERY 11 ----------------------
Solution found by parallel processing (step 1)

Query index 0 was solved
Query is NOT satisfied.
Spent 0.056414 on verification
@@@0.07,147892@@@
parallel: This job succeeded:
eval /usr/bin/time -f "@@@%e,%M@@@" /home/mcc/BenchKit/bin/verifypn -n '-ltl tarjan --ltl-heur dist -q 0 -l 0 -d 119' /home/mcc/BenchKit/bin/tmp/tmp.cZj0dhSP9j /home/mcc/BenchKit/bin/tmp/tmp.uWpMFTSWwM --binary-query-io 1 -x 11 -n

FORMULA CopsAndRobbers-PT-CRL015X005-LTLFireability-03 FALSE TECHNIQUES EXPLICIT TARJAN WEAK_SKIP STUBBORN AUT_STUB HEURISTIC DIST_HEUR OPTIM-1
Time left: 3575
------------------- QUERY 12 ----------------------
Solution found by parallel processing (step 1)

Query index 0 was solved
Query is NOT satisfied.
Spent 0.011707 on verification
@@@0.02,19796@@@
parallel: This job succeeded:
eval /usr/bin/time -f "@@@%e,%M@@@" /home/mcc/BenchKit/bin/verifypn -n '-ltl ndfs -q 0 -l 0 -d 119' /home/mcc/BenchKit/bin/tmp/tmp.cZj0dhSP9j /home/mcc/BenchKit/bin/tmp/tmp.uWpMFTSWwM --binary-query-io 1 -x 12 -n

FORMULA CopsAndRobbers-PT-CRL015X005-LTLFireability-07 FALSE TECHNIQUES EXPLICIT NDFS WEAK_SKIP HEURISTIC AUTOMATON_HEUR OPTIM-1
Time left: 3575
------------------- QUERY 13 ----------------------
Solution found by parallel processing (step 1)

Query index 0 was solved
Query is satisfied.
Spent 69.5503 on verification
@@@69.57,648340@@@
parallel: This job succeeded:
eval /usr/bin/time -f "@@@%e,%M@@@" /home/mcc/BenchKit/bin/verifypn -n '-ltl tarjan --ltl-heur aut -s DFS -p -q 0 -l 0 -d 119' /home/mcc/BenchKit/bin/tmp/tmp.cZj0dhSP9j /home/mcc/BenchKit/bin/tmp/tmp.uWpMFTSWwM --binary-query-io 1 -x 13 -n

FORMULA CopsAndRobbers-PT-CRL015X005-LTLFireability-00 TRUE TECHNIQUES EXPLICIT TARJAN WEAK_SKIP OPTIM-1
Time left: 3505
All queries are solved
Time left: 3505
terminated-with-cleanup

BK_STOP 1749348043253

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

CPN OverApproximation is only usable on colored models

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="CopsAndRobbers-PT-CRL015X005"
export BK_EXAMINATION="LTLFireability"
export BK_TOOL="gold2024"
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 2-5832"
echo " Executing tool gold2024"
echo " Input is CopsAndRobbers-PT-CRL015X005, examination is LTLFireability"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r264-tall-174931348800136"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/CopsAndRobbers-PT-CRL015X005.tgz
mv CopsAndRobbers-PT-CRL015X005 execution
cd execution
if [ "LTLFireability" = "ReachabilityDeadlock" ] || [ "LTLFireability" = "UpperBounds" ] || [ "LTLFireability" = "QuasiLiveness" ] || [ "LTLFireability" = "StableMarking" ] || [ "LTLFireability" = "Liveness" ] || [ "LTLFireability" = "OneSafe" ] || [ "LTLFireability" = "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 [ "LTLFireability" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "LTLFireability" != "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 "LTLFireability.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 '' LTLFireability.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "LTLFireability" = "ReachabilityDeadlock" ] || [ "LTLFireability" = "QuasiLiveness" ] || [ "LTLFireability" = "StableMarking" ] || [ "LTLFireability" = "Liveness" ] || [ "LTLFireability" = "OneSafe" ] ; then
echo "FORMULA_NAME LTLFireability"
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 ;