fond
Model Checking Contest 2023
13th edition, Paris, France, April 26, 2023 (at TOOLympics II)
Execution of r115-tall-167814493700391
Last Updated
May 14, 2023

About the Execution of ITS-Tools for DLCround-PT-03b

Execution Summary
Max Memory
Used (MB)
Time wait (ms) CPU Usage (ms) I/O Wait (ms) Computed Result Execution
Status
343.552 5405.00 8944.00 238.20 T normal

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.r115-tall-167814493700391.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 itstools
Input is DLCround-PT-03b, examination is ReachabilityDeadlock
Time confinement is 1800 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r115-tall-167814493700391
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 852K
-rw-r--r-- 1 mcc users 6.2K Feb 25 18:20 CTLCardinality.txt
-rw-r--r-- 1 mcc users 65K Feb 25 18:20 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.7K Feb 25 18:20 CTLFireability.txt
-rw-r--r-- 1 mcc users 52K Feb 25 18:20 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Jan 29 11:40 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 3.5K Feb 25 15:52 LTLCardinality.txt
-rw-r--r-- 1 mcc users 25K Feb 25 15:52 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.1K Feb 25 15:52 LTLFireability.txt
-rw-r--r-- 1 mcc users 15K Feb 25 15:52 LTLFireability.xml
-rw-r--r-- 1 mcc users 13K Feb 25 18:21 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 131K Feb 25 18:21 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 6.2K Feb 25 18:20 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 47K Feb 25 18:20 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K Feb 25 15:52 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.6K Feb 25 15:52 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 5 18:22 equiv_col
-rw-r--r-- 1 mcc users 4 Mar 5 18:22 instance
-rw-r--r-- 1 mcc users 6 Mar 5 18:22 iscolored
-rw-r--r-- 1 mcc users 432K Mar 5 18:22 model.pnml

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

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

The expected result is a vector of booleans
BOOL_VECTOR

FORMULA_NAME ReachabilityDeadlock

=== Now, execution of the tool begins

BK_START 1678350575028

bash -c /home/mcc/BenchKit/BenchKit_head.sh 2> STDERR ; echo ; echo -n "BK_STOP " ; date -u +%s%3N
Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=ReachabilityDeadlock
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=1800
BK_INPUT=DLCround-PT-03b
Not applying reductions.
Model is PT
ReachabilityDeadlock PT
Running Version 202303021504
[2023-03-09 08:29:36] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, ReachabilityDeadlock, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 1800]
[2023-03-09 08:29:36] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2023-03-09 08:29:36] [INFO ] Load time of PNML (sax parser for PT used): 106 ms
[2023-03-09 08:29:36] [INFO ] Transformed 1383 places.
[2023-03-09 08:29:36] [INFO ] Transformed 1887 transitions.
[2023-03-09 08:29:36] [INFO ] Found NUPN structural information;
[2023-03-09 08:29:36] [INFO ] Parsed PT model containing 1383 places and 1887 transitions and 4809 arcs in 187 ms.
Parsed 1 properties from file /home/mcc/execution/ReachabilityDeadlock.xml in 2 ms.
Working with output stream class java.io.PrintStream
Built sparse matrix representations for Structural reductions in 6 ms.24421KB memory used
Starting structural reductions in DEADLOCK mode, iteration 0 : 1383/1383 places, 1887/1887 transitions.
Graph (trivial) has 1344 edges and 1383 vertex of which 288 / 1383 are part of one of the 20 SCC in 7 ms
Free SCC test removed 268 places
Ensure Unique test removed 280 transitions
Reduce isomorphic transitions removed 280 transitions.
Computed a total of 239 stabilizing places and 239 stable transitions
Computed a total of 239 stabilizing places and 239 stable transitions
Drop transitions removed 560 transitions
Trivial Post-agglo rules discarded 560 transitions
Performed 560 trivial Post agglomeration. Transition count delta: 560
Iterating post reduction 0 with 560 rules applied. Total rules applied 561 place count 1115 transition count 1047
Reduce places removed 560 places and 0 transitions.
Ensure Unique test removed 24 transitions
Reduce isomorphic transitions removed 24 transitions.
Computed a total of 103 stabilizing places and 103 stable transitions
Drop transitions removed 20 transitions
Trivial Post-agglo rules discarded 20 transitions
Performed 20 trivial Post agglomeration. Transition count delta: 20
Iterating post reduction 1 with 604 rules applied. Total rules applied 1165 place count 555 transition count 1003
Reduce places removed 20 places and 0 transitions.
Ensure Unique test removed 4 transitions
Reduce isomorphic transitions removed 4 transitions.
Computed a total of 103 stabilizing places and 103 stable transitions
Drop transitions removed 4 transitions
Trivial Post-agglo rules discarded 4 transitions
Performed 4 trivial Post agglomeration. Transition count delta: 4
Iterating post reduction 2 with 28 rules applied. Total rules applied 1193 place count 535 transition count 995
Reduce places removed 4 places and 0 transitions.
Computed a total of 103 stabilizing places and 103 stable transitions
Iterating post reduction 3 with 4 rules applied. Total rules applied 1197 place count 531 transition count 995
Computed a total of 103 stabilizing places and 103 stable transitions
Performed 4 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 4 with 4 Pre rules applied. Total rules applied 1197 place count 531 transition count 991
Deduced a syphon composed of 4 places in 1 ms
Reduce places removed 4 places and 0 transitions.
Iterating global reduction 4 with 8 rules applied. Total rules applied 1205 place count 527 transition count 991
Computed a total of 103 stabilizing places and 103 stable transitions
Discarding 152 places :
Symmetric choice reduction at 4 with 152 rule applications. Total rules 1357 place count 375 transition count 839
Iterating global reduction 4 with 152 rules applied. Total rules applied 1509 place count 375 transition count 839
Computed a total of 51 stabilizing places and 51 stable transitions
Performed 44 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 4 with 44 Pre rules applied. Total rules applied 1509 place count 375 transition count 795
Deduced a syphon composed of 44 places in 3 ms
Reduce places removed 44 places and 0 transitions.
Iterating global reduction 4 with 88 rules applied. Total rules applied 1597 place count 331 transition count 795
Computed a total of 51 stabilizing places and 51 stable transitions
Discarding 36 places :
Symmetric choice reduction at 4 with 36 rule applications. Total rules 1633 place count 295 transition count 567
Iterating global reduction 4 with 36 rules applied. Total rules applied 1669 place count 295 transition count 567
Ensure Unique test removed 16 transitions
Reduce isomorphic transitions removed 16 transitions.
Computed a total of 51 stabilizing places and 51 stable transitions
Iterating post reduction 4 with 16 rules applied. Total rules applied 1685 place count 295 transition count 551
Computed a total of 51 stabilizing places and 51 stable transitions
Performed 90 Post agglomeration using F-continuation condition with reduction of 4 identical transitions.
Deduced a syphon composed of 90 places in 1 ms
Reduce places removed 90 places and 0 transitions.
Iterating global reduction 5 with 180 rules applied. Total rules applied 1865 place count 205 transition count 457
Ensure Unique test removed 4 transitions
Reduce isomorphic transitions removed 4 transitions.
Computed a total of 1 stabilizing places and 1 stable transitions
Iterating post reduction 5 with 4 rules applied. Total rules applied 1869 place count 205 transition count 453
Computed a total of 1 stabilizing places and 1 stable transitions
Performed 16 Post agglomeration using F-continuation condition with reduction of 16 identical transitions.
Deduced a syphon composed of 16 places in 0 ms
Reduce places removed 16 places and 0 transitions.
Iterating global reduction 6 with 32 rules applied. Total rules applied 1901 place count 189 transition count 530
Computed a total of 1 stabilizing places and 16 stable transitions
Discarding 4 places :
Symmetric choice reduction at 6 with 4 rule applications. Total rules 1905 place count 185 transition count 492
Iterating global reduction 6 with 4 rules applied. Total rules applied 1909 place count 185 transition count 492
Ensure Unique test removed 17 transitions
Reduce isomorphic transitions removed 17 transitions.
Computed a total of 1 stabilizing places and 16 stable transitions
Iterating post reduction 6 with 17 rules applied. Total rules applied 1926 place count 185 transition count 475
Computed a total of 1 stabilizing places and 16 stable transitions
Computed a total of 1 stabilizing places and 16 stable transitions
Drop transitions removed 36 transitions
Redundant transition composition rules discarded 36 transitions
Iterating global reduction 7 with 36 rules applied. Total rules applied 1962 place count 185 transition count 439
Computed a total of 1 stabilizing places and 1 stable transitions
Discarding 8 places :
Symmetric choice reduction at 7 with 8 rule applications. Total rules 1970 place count 177 transition count 423
Iterating global reduction 7 with 8 rules applied. Total rules applied 1978 place count 177 transition count 423
Computed a total of 1 stabilizing places and 1 stable transitions
Discarding 8 places :
Symmetric choice reduction at 7 with 8 rule applications. Total rules 1986 place count 169 transition count 365
Iterating global reduction 7 with 8 rules applied. Total rules applied 1994 place count 169 transition count 365
Ensure Unique test removed 8 transitions
Reduce isomorphic transitions removed 8 transitions.
Computed a total of 1 stabilizing places and 1 stable transitions
Iterating post reduction 7 with 8 rules applied. Total rules applied 2002 place count 169 transition count 357
Computed a total of 1 stabilizing places and 1 stable transitions
Performed 4 Post agglomeration using F-continuation condition.Transition count delta: -30
Deduced a syphon composed of 4 places in 0 ms
Reduce places removed 4 places and 0 transitions.
Iterating global reduction 8 with 8 rules applied. Total rules applied 2010 place count 165 transition count 387
Computed a total of 1 stabilizing places and 16 stable transitions
Computed a total of 1 stabilizing places and 16 stable transitions
Drop transitions removed 26 transitions
Redundant transition composition rules discarded 26 transitions
Iterating global reduction 8 with 26 rules applied. Total rules applied 2036 place count 165 transition count 361
Computed a total of 1 stabilizing places and 1 stable transitions
Performed 4 Post agglomeration using F-continuation condition.Transition count delta: -29
Deduced a syphon composed of 4 places in 0 ms
Reduce places removed 4 places and 0 transitions.
Iterating global reduction 8 with 8 rules applied. Total rules applied 2044 place count 161 transition count 390
Computed a total of 1 stabilizing places and 16 stable transitions
Computed a total of 1 stabilizing places and 16 stable transitions
Drop transitions removed 25 transitions
Redundant transition composition rules discarded 25 transitions
Iterating global reduction 8 with 25 rules applied. Total rules applied 2069 place count 161 transition count 365
Computed a total of 1 stabilizing places and 1 stable transitions
Performed 4 Post agglomeration using F-continuation condition.Transition count delta: -29
Deduced a syphon composed of 4 places in 0 ms
Reduce places removed 4 places and 0 transitions.
Iterating global reduction 8 with 8 rules applied. Total rules applied 2077 place count 157 transition count 394
Computed a total of 1 stabilizing places and 16 stable transitions
Computed a total of 1 stabilizing places and 16 stable transitions
Drop transitions removed 25 transitions
Redundant transition composition rules discarded 25 transitions
Iterating global reduction 8 with 25 rules applied. Total rules applied 2102 place count 157 transition count 369
Computed a total of 1 stabilizing places and 1 stable transitions
Performed 4 Post agglomeration using F-continuation condition.Transition count delta: -29
Deduced a syphon composed of 4 places in 1 ms
Reduce places removed 4 places and 0 transitions.
Iterating global reduction 8 with 8 rules applied. Total rules applied 2110 place count 153 transition count 398
Computed a total of 1 stabilizing places and 16 stable transitions
Computed a total of 1 stabilizing places and 16 stable transitions
Drop transitions removed 25 transitions
Redundant transition composition rules discarded 25 transitions
Iterating global reduction 8 with 25 rules applied. Total rules applied 2135 place count 153 transition count 373
Computed a total of 1 stabilizing places and 1 stable transitions
Performed 4 Post agglomeration using F-continuation condition.Transition count delta: -29
Deduced a syphon composed of 4 places in 1 ms
Reduce places removed 4 places and 0 transitions.
Iterating global reduction 8 with 8 rules applied. Total rules applied 2143 place count 149 transition count 402
Computed a total of 1 stabilizing places and 16 stable transitions
Renaming transitions due to excessive name length > 1024 char.
Computed a total of 1 stabilizing places and 16 stable transitions
Drop transitions removed 25 transitions
Redundant transition composition rules discarded 25 transitions
Iterating global reduction 8 with 25 rules applied. Total rules applied 2168 place count 149 transition count 377
Computed a total of 1 stabilizing places and 1 stable transitions
Performed 4 Post agglomeration using F-continuation condition.Transition count delta: -29
Deduced a syphon composed of 4 places in 0 ms
Reduce places removed 4 places and 0 transitions.
Iterating global reduction 8 with 8 rules applied. Total rules applied 2176 place count 145 transition count 406
Computed a total of 1 stabilizing places and 16 stable transitions
Computed a total of 1 stabilizing places and 16 stable transitions
Drop transitions removed 25 transitions
Redundant transition composition rules discarded 25 transitions
Iterating global reduction 8 with 25 rules applied. Total rules applied 2201 place count 145 transition count 381
Computed a total of 1 stabilizing places and 1 stable transitions
Performed 4 Post agglomeration using F-continuation condition.Transition count delta: -29
Deduced a syphon composed of 4 places in 1 ms
Reduce places removed 4 places and 0 transitions.
Iterating global reduction 8 with 8 rules applied. Total rules applied 2209 place count 141 transition count 410
Computed a total of 1 stabilizing places and 16 stable transitions
Computed a total of 1 stabilizing places and 16 stable transitions
Drop transitions removed 25 transitions
Redundant transition composition rules discarded 25 transitions
Iterating global reduction 8 with 25 rules applied. Total rules applied 2234 place count 141 transition count 385
Computed a total of 1 stabilizing places and 1 stable transitions
Performed 4 Post agglomeration using F-continuation condition.Transition count delta: -23
Deduced a syphon composed of 4 places in 0 ms
Reduce places removed 4 places and 0 transitions.
Iterating global reduction 8 with 8 rules applied. Total rules applied 2242 place count 137 transition count 408
Computed a total of 1 stabilizing places and 16 stable transitions
Computed a total of 1 stabilizing places and 16 stable transitions
Drop transitions removed 23 transitions
Redundant transition composition rules discarded 23 transitions
Iterating global reduction 8 with 23 rules applied. Total rules applied 2265 place count 137 transition count 385
Computed a total of 1 stabilizing places and 1 stable transitions
Performed 4 Post agglomeration using F-continuation condition.Transition count delta: -23
Deduced a syphon composed of 4 places in 0 ms
Reduce places removed 4 places and 0 transitions.
Iterating global reduction 8 with 8 rules applied. Total rules applied 2273 place count 133 transition count 408
Computed a total of 1 stabilizing places and 16 stable transitions
Computed a total of 1 stabilizing places and 16 stable transitions
Drop transitions removed 23 transitions
Redundant transition composition rules discarded 23 transitions
Iterating global reduction 8 with 23 rules applied. Total rules applied 2296 place count 133 transition count 385
Computed a total of 1 stabilizing places and 1 stable transitions
Performed 4 Post agglomeration using F-continuation condition.Transition count delta: -23
Deduced a syphon composed of 4 places in 0 ms
Reduce places removed 4 places and 0 transitions.
Iterating global reduction 8 with 8 rules applied. Total rules applied 2304 place count 129 transition count 408
Computed a total of 1 stabilizing places and 16 stable transitions
Computed a total of 1 stabilizing places and 16 stable transitions
Drop transitions removed 23 transitions
Redundant transition composition rules discarded 23 transitions
Iterating global reduction 8 with 23 rules applied. Total rules applied 2327 place count 129 transition count 385
Computed a total of 1 stabilizing places and 1 stable transitions
Computed a total of 1 stabilizing places and 1 stable transitions
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 8 with 1 rules applied. Total rules applied 2328 place count 128 transition count 384
Computed a total of 0 stabilizing places and 0 stable transitions
Computed a total of 0 stabilizing places and 0 stable transitions
Applied a total of 2328 rules in 480 ms. Remains 128 /1383 variables (removed 1255) and now considering 384/1887 (removed 1503) transitions.
Finished structural reductions in DEADLOCK mode , in 1 iterations and 481 ms. Remains : 128/1383 places, 384/1887 transitions.
Finished random walk after 648473 steps, including 0 resets, run found a deadlock after 2167 ms. (steps per millisecond=299 )
FORMULA ReachabilityDeadlock TRUE TECHNIQUES TOPOLOGICAL STRUCTURAL_REDUCTION RANDOM_WALK
Total runtime 2919 ms.

BK_STOP 1678350580433

--------------------
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
+ [[ ReachabilityDeadlock = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution ReachabilityDeadlock -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 1800
+ 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_1.0.0.202303021504.jar
+ VERSION=202303021504
+ echo 'Running Version 202303021504'
+ /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/its-tools -pnfolder /home/mcc/execution -examination ReachabilityDeadlock -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 1800

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="DLCround-PT-03b"
export BK_EXAMINATION="ReachabilityDeadlock"
export BK_TOOL="itstools"
export BK_RESULT_DIR="/tmp/BK_RESULTS/OUTPUTS"
export BK_TIME_CONFINEMENT="1800"
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 itstools"
echo " Input is DLCround-PT-03b, examination is ReachabilityDeadlock"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r115-tall-167814493700391"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/DLCround-PT-03b.tgz
mv DLCround-PT-03b execution
cd execution
if [ "ReachabilityDeadlock" = "ReachabilityDeadlock" ] || [ "ReachabilityDeadlock" = "UpperBounds" ] || [ "ReachabilityDeadlock" = "QuasiLiveness" ] || [ "ReachabilityDeadlock" = "StableMarking" ] || [ "ReachabilityDeadlock" = "Liveness" ] || [ "ReachabilityDeadlock" = "OneSafe" ] || [ "ReachabilityDeadlock" = "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 [ "ReachabilityDeadlock" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "ReachabilityDeadlock" != "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 "ReachabilityDeadlock.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property ReachabilityDeadlock.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "ReachabilityDeadlock.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 '' ReachabilityDeadlock.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "ReachabilityDeadlock" = "ReachabilityDeadlock" ] || [ "ReachabilityDeadlock" = "QuasiLiveness" ] || [ "ReachabilityDeadlock" = "StableMarking" ] || [ "ReachabilityDeadlock" = "Liveness" ] || [ "ReachabilityDeadlock" = "OneSafe" ] ; then
echo "FORMULA_NAME ReachabilityDeadlock"
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 ;