fond
Model Checking Contest 2020
10th edition, Paris, France, June 23, 2020
Execution of r186-oct2-158987939200583
Last Updated
Jun 28, 2020

About the Execution of ITS-LoLa for SharedMemory-PT-000100

Execution Summary
Max Memory
Used (MB)
Time wait (ms) CPU Usage (ms) I/O Wait (ms) Computed Result Execution
Status
15730.190 3600000.00 3684906.00 635.70 ?FTFF?FTFFFFTTTF normal

Execution Chart

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

Trace from the execution

Formatting '/data/fko/mcc2020-input.r186-oct2-158987939200583.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fko/mcc2020-input.qcow2 cluster_size=65536 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
............................................................................................................................................................................................................................................................................................................................................
=====================================================================
Generated by BenchKit 2-4028
Executing tool itslola
Input is SharedMemory-PT-000100, examination is ReachabilityFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r186-oct2-158987939200583
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 59M
-rw-r--r-- 1 mcc users 2.5M Apr 27 15:14 CTLCardinality.txt
-rw-r--r-- 1 mcc users 6.2M Apr 27 15:14 CTLCardinality.xml
-rw-r--r-- 1 mcc users 1.8M Apr 27 15:14 CTLFireability.txt
-rw-r--r-- 1 mcc users 5.0M Apr 27 15:14 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.0K Apr 27 15:14 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.1K Apr 27 15:14 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 646K Apr 27 15:14 LTLCardinality.txt
-rw-r--r-- 1 mcc users 1.8M Apr 28 14:02 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.3M Apr 27 15:14 LTLFireability.txt
-rw-r--r-- 1 mcc users 7.1M Apr 28 14:02 LTLFireability.xml
-rw-r--r-- 1 mcc users 1.1M Apr 27 15:14 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 2.6M Apr 27 15:14 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 3.2M Apr 27 15:14 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 9.1M Apr 27 15:14 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 13K Apr 27 15:14 UpperBounds.txt
-rw-r--r-- 1 mcc users 31K Apr 27 15:14 UpperBounds.xml
-rw-r--r-- 1 mcc users 5 Apr 27 15:14 equiv_col
-rw-r--r-- 1 mcc users 7 Apr 27 15:14 instance
-rw-r--r-- 1 mcc users 6 Apr 27 15:14 iscolored
-rw-r--r-- 1 mcc users 16M Apr 27 15:14 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 SharedMemory-PT-000100-ReachabilityFireability-00
FORMULA_NAME SharedMemory-PT-000100-ReachabilityFireability-01
FORMULA_NAME SharedMemory-PT-000100-ReachabilityFireability-02
FORMULA_NAME SharedMemory-PT-000100-ReachabilityFireability-03
FORMULA_NAME SharedMemory-PT-000100-ReachabilityFireability-04
FORMULA_NAME SharedMemory-PT-000100-ReachabilityFireability-05
FORMULA_NAME SharedMemory-PT-000100-ReachabilityFireability-06
FORMULA_NAME SharedMemory-PT-000100-ReachabilityFireability-07
FORMULA_NAME SharedMemory-PT-000100-ReachabilityFireability-08
FORMULA_NAME SharedMemory-PT-000100-ReachabilityFireability-09
FORMULA_NAME SharedMemory-PT-000100-ReachabilityFireability-10
FORMULA_NAME SharedMemory-PT-000100-ReachabilityFireability-11
FORMULA_NAME SharedMemory-PT-000100-ReachabilityFireability-12
FORMULA_NAME SharedMemory-PT-000100-ReachabilityFireability-13
FORMULA_NAME SharedMemory-PT-000100-ReachabilityFireability-14
FORMULA_NAME SharedMemory-PT-000100-ReachabilityFireability-15

=== Now, execution of the tool begins

BK_START 1591251886404

bash -c /home/mcc/BenchKit/BenchKit_head.sh 2> STDERR ; echo ; echo -n "BK_STOP " ; date -u +%s%3N
[2020-06-04 06:24:48] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, ReachabilityFireability, -z3path, /home/mcc/BenchKit//z3/bin/z3, -yices2path, /home/mcc/BenchKit//yices/bin/yices, -timeout, 3600, -rebuildPNML]
[2020-06-04 06:24:48] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2020-06-04 06:24:48] [INFO ] Load time of PNML (sax parser for PT used): 786 ms
[2020-06-04 06:24:49] [INFO ] Transformed 10301 places.
[2020-06-04 06:24:49] [INFO ] Transformed 20100 transitions.
[2020-06-04 06:24:49] [INFO ] Found NUPN structural information;
[2020-06-04 06:24:49] [INFO ] Parsed PT model containing 10301 places and 20100 transitions in 912 ms.
Parsed 16 properties from file /home/mcc/execution/ReachabilityFireability.xml in 4798 ms.
Working with output stream class java.io.PrintStream
FORMULA SharedMemory-PT-000100-ReachabilityFireability-01 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Incomplete random walk after 10000 steps, including 0 resets, run finished after 5548 ms. (steps per millisecond=1 ) properties seen :[0, 1, 1, 1, 0, 1, 0, 0, 0, 0, 0, 1, 0, 1, 0]
FORMULA SharedMemory-PT-000100-ReachabilityFireability-14 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA SharedMemory-PT-000100-ReachabilityFireability-12 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA SharedMemory-PT-000100-ReachabilityFireability-06 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA SharedMemory-PT-000100-ReachabilityFireability-04 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA SharedMemory-PT-000100-ReachabilityFireability-03 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA SharedMemory-PT-000100-ReachabilityFireability-02 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
Interrupted Best-First random walk after 4602 steps, including 0 resets, run timeout after 5156 ms. (steps per millisecond=0 ) properties seen :[0, 0, 0, 0, 0, 0, 0, 0, 0]
Interrupted Best-First random walk after 4293 steps, including 0 resets, run timeout after 5214 ms. (steps per millisecond=0 ) properties seen :[0, 0, 0, 0, 0, 0, 0, 0, 0]
Interrupted Best-First random walk after 3533 steps, including 0 resets, run timeout after 5227 ms. (steps per millisecond=0 ) properties seen :[0, 0, 0, 0, 0, 0, 0, 0, 0]
Incomplete Best-First random walk after 10001 steps, including 0 resets, run finished after 43 ms. (steps per millisecond=232 ) properties seen :[0, 0, 0, 0, 0, 0, 0, 0, 0]
Incomplete Best-First random walk after 10001 steps, including 0 resets, run finished after 36 ms. (steps per millisecond=277 ) properties seen :[0, 0, 0, 0, 0, 0, 0, 0, 0]
Incomplete Best-First random walk after 10001 steps, including 0 resets, run finished after 37 ms. (steps per millisecond=270 ) properties seen :[0, 0, 0, 0, 0, 0, 0, 0, 0]
Incomplete Best-First random walk after 10001 steps, including 0 resets, run finished after 52 ms. (steps per millisecond=192 ) properties seen :[0, 0, 0, 0, 0, 0, 0, 0, 0]
Incomplete Best-First random walk after 10001 steps, including 0 resets, run finished after 47 ms. (steps per millisecond=212 ) properties seen :[0, 0, 0, 0, 0, 0, 0, 0, 0]
Incomplete Best-First random walk after 10001 steps, including 0 resets, run finished after 49 ms. (steps per millisecond=204 ) properties seen :[0, 0, 0, 0, 0, 0, 0, 0, 0]
// Phase 1: matrix 20100 rows 10301 cols
[2020-06-04 06:25:17] [INFO ] Computed 201 place invariants in 2465 ms
[2020-06-04 06:25:22] [INFO ] [Real]Absence check using 201 positive place invariants in 2882 ms returned sat
[2020-06-04 06:25:22] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2020-06-04 06:25:22] [WARNING] SMT solver failed with error :java.lang.RuntimeException: SMT solver raised an error when submitting script. Raised (error "Failed to assert expression: java.io.IOException: Stream closed (>= t14963 0)") while checking expression at index 0
[2020-06-04 06:25:27] [INFO ] [Real]Absence check using 201 positive place invariants in 4114 ms returned (error "Solver has unexpectedly terminated")
[2020-06-04 06:25:27] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2020-06-04 06:25:28] [WARNING] SMT solver failed with error :java.lang.RuntimeException: SMT solver raised an error when submitting script. Raised (error "Error writing to Z3 solver: java.io.IOException: Stream closed") while checking expression at index 1
[2020-06-04 06:25:29] [INFO ] [Real]Absence check using 201 positive place invariants in 280 ms returned unsat
[2020-06-04 06:25:31] [INFO ] [Real]Absence check using 201 positive place invariants in 1041 ms returned unsat
[2020-06-04 06:25:32] [INFO ] [Real]Absence check using 201 positive place invariants in 1037 ms returned unsat
[2020-06-04 06:25:34] [INFO ] [Real]Absence check using 201 positive place invariants in 1045 ms returned unsat
[2020-06-04 06:25:37] [INFO ] [Real]Absence check using 201 positive place invariants in 1672 ms returned sat
[2020-06-04 06:25:37] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2020-06-04 06:25:39] [INFO ] SMT solver returned unknown. Retrying;
[2020-06-04 06:25:39] [INFO ] [Real]Absence check using state equation in 2585 ms returned (error "Failed to check-sat")
[2020-06-04 06:25:42] [INFO ] [Real]Absence check using 201 positive place invariants in 1536 ms returned sat
[2020-06-04 06:25:42] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2020-06-04 06:25:44] [INFO ] SMT solver returned unknown. Retrying;
[2020-06-04 06:25:44] [INFO ] [Real]Absence check using state equation in 2507 ms returned (error "Failed to check-sat")
[2020-06-04 06:25:46] [INFO ] [Real]Absence check using 201 positive place invariants in 1016 ms returned unsat
FORMULA SharedMemory-PT-000100-ReachabilityFireability-15 FALSE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA SharedMemory-PT-000100-ReachabilityFireability-10 FALSE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA SharedMemory-PT-000100-ReachabilityFireability-09 FALSE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA SharedMemory-PT-000100-ReachabilityFireability-08 FALSE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA SharedMemory-PT-000100-ReachabilityFireability-07 TRUE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
Support contains 10301 out of 10301 places. Attempting structural reductions.
Starting structural reductions, iteration 0 : 10301/10301 places, 20100/20100 transitions.
Applied a total of 0 rules in 153 ms. Remains 10301 /10301 variables (removed 0) and now considering 20100/20100 (removed 0) transitions.
Finished structural reductions, in 1 iterations. Remains : 10301/10301 places, 20100/20100 transitions.
Interrupted random walk after 71004 steps, including 0 resets, run timeout after 30001 ms. (steps per millisecond=2 ) properties seen :[0, 0, 1, 1]
FORMULA SharedMemory-PT-000100-ReachabilityFireability-13 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA SharedMemory-PT-000100-ReachabilityFireability-11 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
Interrupted Best-First random walk after 4221 steps, including 0 resets, run timeout after 5100 ms. (steps per millisecond=0 ) properties seen :[0, 0]
Interrupted Best-First random walk after 3913 steps, including 0 resets, run timeout after 5009 ms. (steps per millisecond=0 ) properties seen :[0, 0]
// Phase 1: matrix 20100 rows 10301 cols
[2020-06-04 06:26:29] [INFO ] Computed 201 place invariants in 2279 ms
[2020-06-04 06:26:33] [INFO ] [Real]Absence check using 201 positive place invariants in 3009 ms returned sat
[2020-06-04 06:26:33] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2020-06-04 06:27:14] [INFO ] SMT solver returned unknown. Retrying;
[2020-06-04 06:27:14] [INFO ] [Real]Absence check using state equation in 41168 ms returned (error "Failed to check-sat")
[2020-06-04 06:27:24] [INFO ] SMT solver returned unknown. Retrying;
[2020-06-04 06:27:27] [INFO ] [Real]Absence check using 201 positive place invariants in 12066 ms returned unknown
Support contains 10301 out of 10301 places. Attempting structural reductions.
Starting structural reductions, iteration 0 : 10301/10301 places, 20100/20100 transitions.
Applied a total of 0 rules in 104 ms. Remains 10301 /10301 variables (removed 0) and now considering 20100/20100 (removed 0) transitions.
Finished structural reductions, in 1 iterations. Remains : 10301/10301 places, 20100/20100 transitions.
Interrupted random walk after 43151 steps, including 0 resets, run timeout after 30001 ms. (steps per millisecond=1 ) properties seen :[0, 0]
Interrupted Best-First random walk after 4418 steps, including 0 resets, run timeout after 5146 ms. (steps per millisecond=0 ) properties seen :[0, 0]
Interrupted Best-First random walk after 4265 steps, including 0 resets, run timeout after 5156 ms. (steps per millisecond=0 ) properties seen :[0, 0]
Probabilistic random walk after 139164 steps, saw 245 distinct states, run finished after 30254 ms. (steps per millisecond=4 ) properties seen :[0, 0]
// Phase 1: matrix 20100 rows 10301 cols
[2020-06-04 06:28:40] [INFO ] Computed 201 place invariants in 2251 ms
[2020-06-04 06:28:44] [INFO ] [Real]Absence check using 201 positive place invariants in 3074 ms returned sat
[2020-06-04 06:28:44] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2020-06-04 06:29:25] [INFO ] SMT solver returned unknown. Retrying;
[2020-06-04 06:29:25] [INFO ] [Real]Absence check using state equation in 41102 ms returned (error "Failed to check-sat")
[2020-06-04 06:29:35] [INFO ] SMT solver returned unknown. Retrying;
[2020-06-04 06:29:38] [INFO ] [Real]Absence check using 201 positive place invariants in 12058 ms returned unknown
Support contains 10301 out of 10301 places. Attempting structural reductions.
Starting structural reductions, iteration 0 : 10301/10301 places, 20100/20100 transitions.
Applied a total of 0 rules in 93 ms. Remains 10301 /10301 variables (removed 0) and now considering 20100/20100 (removed 0) transitions.
Finished structural reductions, in 1 iterations. Remains : 10301/10301 places, 20100/20100 transitions.
Starting structural reductions, iteration 0 : 10301/10301 places, 20100/20100 transitions.
Applied a total of 0 rules in 109 ms. Remains 10301 /10301 variables (removed 0) and now considering 20100/20100 (removed 0) transitions.
// Phase 1: matrix 20100 rows 10301 cols
[2020-06-04 06:29:40] [INFO ] Computed 201 place invariants in 2244 ms
[2020-06-04 06:29:41] [INFO ] SMT solver returned unknown. Retrying;
[2020-06-04 06:29:41] [INFO ] Implicit Places using invariants in 3183 ms returned []
Implicit Place search using SMT only with invariants took 3184 ms to find 0 implicit places.
// Phase 1: matrix 20100 rows 10301 cols
[2020-06-04 06:29:43] [INFO ] Computed 201 place invariants in 2244 ms
[2020-06-04 06:29:44] [INFO ] SMT solver returned unknown. Retrying;
[2020-06-04 06:30:14] [INFO ] Performed 2667/20100 'is it Dead' test of which 0 returned DEAD in 30 seconds.
[2020-06-04 06:30:43] [INFO ] Dead Transitions with SMT raised an exceptionSMT solver raised an error when submitting script. Raised (error "Failed to assert expression: java.io.IOException: Broken pipe (>= s3888 1)") after 62272 ms
Finished structural reductions, in 1 iterations. Remains : 10301/10301 places, 20100/20100 transitions.
Interrupted random walk after 62625 steps, including 0 resets, run timeout after 30001 ms. (steps per millisecond=2 ) properties seen :[0, 0]
// Phase 1: matrix 20100 rows 10301 cols
[2020-06-04 06:31:16] [INFO ] Computed 201 place invariants in 2204 ms
[2020-06-04 06:31:20] [INFO ] [Real]Absence check using 201 positive place invariants in 3122 ms returned sat
[2020-06-04 06:31:20] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2020-06-04 06:31:36] [INFO ] SMT solver returned unknown. Retrying;
[2020-06-04 06:31:36] [INFO ] [Real]Absence check using state equation in 16059 ms returned (error "Failed to check-sat")
[2020-06-04 06:31:46] [INFO ] SMT solver returned unknown. Retrying;
[2020-06-04 06:31:49] [INFO ] [Real]Absence check using 201 positive place invariants in 12060 ms returned unknown
Applied a total of 0 rules in 96 ms. Remains 10301 /10301 variables (removed 0) and now considering 20100/20100 (removed 0) transitions.
// Phase 1: matrix 20100 rows 10301 cols
[2020-06-04 06:31:51] [INFO ] Computed 201 place invariants in 2221 ms
[2020-06-04 06:31:55] [INFO ] [Real]Absence check using 201 positive place invariants in 2893 ms returned sat
[2020-06-04 06:31:55] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2020-06-04 06:32:36] [INFO ] SMT solver returned unknown. Retrying;
[2020-06-04 06:32:36] [INFO ] [Real]Absence check using state equation in 41300 ms returned (error "Failed to check-sat")
[2020-06-04 06:32:46] [INFO ] SMT solver returned unknown. Retrying;
[2020-06-04 06:32:49] [INFO ] [Real]Absence check using 201 positive place invariants in 12114 ms returned unknown
[2020-06-04 06:32:49] [INFO ] Export to MCC properties in file /home/mcc/execution/ReachabilityFireability.sr.xml took 129 ms.
[2020-06-04 06:32:49] [INFO ] Export to PNML in file /home/mcc/execution/model.sr.pnml took 65 ms.
[2020-06-04 06:32:51] [INFO ] Flatten gal took : 1012 ms
info: Time: 3600 - MCC
vrfy: Checking ReachabilityFireability @ SharedMemory-PT-000100 @ 3570 seconds
TIME LIMIT: Killed by timeout after 3600 seconds
MemTotal: 16427332 kB
MemFree: 3859616 kB
After kill :
MemTotal: 16427332 kB
MemFree: 16003304 kB

--------------------
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="SharedMemory-PT-000100"
export BK_EXAMINATION="ReachabilityFireability"
export BK_TOOL="itslola"
export BK_RESULT_DIR="/tmp/BK_RESULTS/OUTPUTS"
export BK_TIME_CONFINEMENT="3600"
export BK_MEMORY_CONFINEMENT="16384"

# 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 2-4028"
echo " Executing tool itslola"
echo " Input is SharedMemory-PT-000100, 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 r186-oct2-158987939200583"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/SharedMemory-PT-000100.tgz
mv SharedMemory-PT-000100 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 ;