Execution Chart

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

Trace from the execution

Waiting for the VM to be ready (probing ssh)
......................
/home/mcc/execution
total 1.4M
-rw-r--r-- 1 mcc users 5.3K May 15 18:54 CTLCardinality.txt
-rw-r--r-- 1 mcc users 26K May 15 18:54 CTLCardinality.xml
-rw-r--r-- 1 mcc users 3.6K May 15 18:54 CTLFireability.txt
-rw-r--r-- 1 mcc users 19K May 15 18:54 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.0K May 15 18:50 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.4K May 15 18:50 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 2.8K May 15 18:54 LTLCardinality.txt
-rw-r--r-- 1 mcc users 11K May 15 18:54 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.4K May 15 18:54 LTLFireability.txt
-rw-r--r-- 1 mcc users 11K May 15 18:54 LTLFireability.xml
-rw-r--r-- 1 mcc users 4.1K May 15 18:54 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 18K May 15 18:54 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 110 May 15 18:54 ReachabilityDeadlock.txt
-rw-r--r-- 1 mcc users 348 May 15 18:54 ReachabilityDeadlock.xml
-rw-r--r-- 1 mcc users 3.5K May 15 18:54 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 16K May 15 18:54 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.8K May 15 18:54 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.9K May 15 18:54 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 May 15 18:50 equiv_col
-rw-r--r-- 1 mcc users 3 May 15 18:50 instance
-rw-r--r-- 1 mcc users 6 May 15 18:50 iscolored
-rw-r--r-- 1 mcc users 1.2M May 15 18:50 model.pnml
=====================================================================
Generated by BenchKit 2-3637
Executing tool mcc4mcc-full
Input is SimpleLoadBal-PT-15, examination is ReachabilityFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r178-smll-152708748200168
=====================================================================

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

=== Now, execution of the tool begins

BK_START 1527161833442


BK_STOP 1527162061093

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

Prefix is 65b80f64.
Reading known information in /usr/share/mcc4mcc/65b80f64-known.json.
Reading learned information in /usr/share/mcc4mcc/65b80f64-learned.json.
Reading value translations in /usr/share/mcc4mcc/65b80f64-values.json.
Using directory /home/mcc/execution for input, as it contains a model.pnml file.
Using SimpleLoadBal-PT-15 as instance name.
Using SimpleLoadBal as model name.
Using algorithm or tool decision-tree.
Model characteristics are: {'Examination': 'ReachabilityFireability', 'Place/Transition': True, 'Colored': False, 'Relative-Time': 1, 'Relative-Memory': 1, 'Ordinary': True, 'Simple Free Choice': False, 'Extended Free Choice': False, 'State Machine': False, 'Marked Graph': False, 'Connected': True, 'Strongly Connected': True, 'Source Place': False, 'Sink Place': False, 'Source Transition': False, 'Sink Transition': False, 'Loop Free': False, 'Conservative': False, 'Sub-Conservative': False, 'Nested Units': False, 'Safe': True, 'Deadlock': False, 'Reversible': False, 'Quasi Live': None, 'Live': None}.
Known tools are: [{'Time': 506520, 'Memory': 956.36, 'Tool': 'lola'}, {'Time': 506828, 'Memory': 1482.2, 'Tool': 'lola'}].
Learned tools are: [{'Tool': 'lola'}].
Learned tool lola is 1.0x far from the best tool lola.
ReachabilityFireability lola SimpleLoadBal-PT-15...

Time: 3600 - MCC
----- Start make prepare stdout -----
----- Start make prepare stderr -----
===========================================================================================
SimpleLoadBal-PT-15: translating PT Petri net model.pnml into LoLA format
===========================================================================================
translating PT Petri net complete


checking for too many tokens
===========================================================================================
SimpleLoadBal-PT-15: translating PT formula ReachabilityFireability into LoLA format
===========================================================================================
translating formula complete
touch formulae;
----- Start make result stderr -----
----- Start make result stdout -----
ReachabilityFireability @ SimpleLoadBal-PT-15 @ 3540 seconds
make: [verify] Error 134 (ignored)
Makefile:222: recipe for target 'verify' failed
----- Start make result stdout -----
----- Start make result stderr -----
lola: LoLA will run for 3540 seconds at most (--timelimit)
lola: NET
lola: reading net from model.pnml.lola
lola: finished parsing
lola: closed net file model.pnml.lola
lola: 1429/65536 symbol table entries, 126 collisions
lola: preprocessing...
lola: finding significant places
lola: 149 places, 1280 transitions, 110 significant places
lola: computing forward-conflicting sets
lola: computing back-conflicting sets
lola: 2081 transition conflict sets
lola: TASK
lola: reading formula from SimpleLoadBal-PT-15-ReachabilityFireability.task
lola: A (G ((FIREABLE(T-lb_route_to_2_307) OR (NOT FIREABLE(T-lb_route_to_2_3447) AND NOT FIREABLE(T-lb_route_to_1_717)) OR FIREABLE(T-lb_balance_to_2_2531)))) : E (F (FIREABLE(T-lb_balance_to_1_2330))) : E (F ((NOT FIREABLE(T-lb_balance_to_1_2083) AND ((FIREABLE(T-lb_route_to_2_136) AND NOT FIREABLE(T-lb_receive_client_12)) OR FIREABLE(T-lb_balance_to_1_1817))))) : A (G (NOT FIREABLE(T-lb_balance_to_2_2021))) : E (F ((((NOT FIREABLE(T-lb_route_to_1_172) AND NOT FIREABLE(T-lb_route_to_1_2031)) OR (FIREABLE(T-lb_route_to_2_221) AND FIREABLE(T-lb_route_to_2_836) AND (FIREABLE(T-lb_balancing_receive_notification_27) OR FIREABLE(T-lb_route_to_1_1554)))) AND (FIREABLE(T-lb_route_to_1_1349) OR (NOT FIREABLE(T-lb_route_to_1_1571) AND (FIREABLE(T-lb_route_to_1_461) OR FIREABLE(T-lb_route_to_1_2475))))))) : E (F ((FIREABLE(T-lb_route_to_1_3756) OR (FIREABLE(T-lb_no_balance_222) AND FIREABLE(T-lb_route_to_1_1622))))) : A (G (((NOT FIREABLE(T-lb_route_to_2_1911) AND NOT FIREABLE(T-lb_no_balance_138)) OR NOT FIREABLE(T-lb_route_to_1_1810) OR FIREABLE(T-lb_route_to_1_1043)))) : A (G (NOT FIREABLE(T-lb_route_to_1_3739))) : E (F ((FIREABLE(T-lb_route_to_2_3123) AND FIREABLE(T-lb_route_to_1_496) AND FIREABLE(T-lb_balance_to_1_2338) AND NOT FIREABLE(T-lb_balance_to_1_293)))) : E (F (((FIREABLE(T-lb_balance_to_1_552) OR FIREABLE(T-lb_route_to_1_3091)) AND (FIREABLE(T-lb_balance_to_1_551) OR FIREABLE(T-lb_balance_to_2_1513)) AND NOT FIREABLE(T-lb_balance_to_1_2082) AND (NOT FIREABLE(T-lb_route_to_2_2372) OR NOT FIREABLE(T-lb_balance_to_2_993) OR FIREABLE(T-lb_route_to_1_258))))) : A (G ((NOT FIREABLE(T-lb_balance_to_1_541) OR NOT FIREABLE(T-lb_route_to_2_1672)))) : E (F (FIREABLE(T-lb_balance_to_2_2277))) : A (G (((NOT FIREABLE(T-lb_route_to_1_3739) AND NOT FIREABLE(T-lb_route_to_1_3705)) OR (NOT FIREABLE(T-lb_no_balance_68) AND NOT FIREABLE(T-lb_balance_to_1_1051)) OR (NOT FIREABLE(T-lb_route_to_1_3773) AND FIREABLE(T-lb_balance_to_1_1826) AND FIREABLE(T-lb_route_to_2_2474))))) : E (F ((NOT FIREABLE(T-lb_route_to_1_2612) AND FIREABLE(T-lb_balance_to_2_3804) AND FIREABLE(T-lb_route_to_1_3261)))) : A (G ((NOT FIREABLE(T-lb_route_to_1_1828) OR NOT FIREABLE(T-lb_route_to_1_1043) OR (NOT FIREABLE(T-lb_route_to_2_3276) AND NOT FIREABLE(T-lb_balance_to_1_1575)) OR ((NOT FIREABLE(T-lb_route_to_2_3054) OR NOT FIREABLE(T-lb_route_to_1_2202)) AND (NOT FIREABLE(T-lb_route_to_1_871) OR FIREABLE(T-lb_balance_to_2_2275)))))) : A (G ((NOT FIREABLE(T-lb_balance_to_2_3546) OR NOT FIREABLE(T-lb_route_to_2_1996))))
lola: computing a collection of formulas
lola: RUNNING
lola: subprocess 0 will run for 221 seconds at most (--localtimelimit=-1)
lola: ========================================
lola: ...considering subproblem: A (G ((FIREABLE(T-lb_route_to_2_307) OR (NOT FIREABLE(T-lb_route_to_2_3447) AND NOT FIREABLE(T-lb_route_to_1_717)) OR FIREABLE(T-lb_balance_to_2_2531))))
lola: ========================================
lola: SUBTASK
lola: checking invariance
lola: Planning: workflow for reachability check: stateequation||search (--findpath=off)
lola: STORE
lola: using a bit-perfect encoder (--encoder=bit)
lola: using 16 bytes per marking, with 18 unused bits
lola: using a prefix tree store (--store=prefix)
lola: SEARCH (state space)
lola: state space: using reachability graph (--search=depth)
lola: state space: using reachability preserving stubborn set method with insertion algorithm (--stubborn=tarjan)
lola: RUNNING
lola: state equation: Generated DNF with 120 literals and 24 conjunctive subformulas
lola: state equation: write sara problem file to SimpleLoadBal-PT-15-ReachabilityFireability.sara
lola: state equation: calling and running sara
sara: try reading problem file SimpleLoadBal-PT-15-ReachabilityFireability.sara.
sara: place or transition ordering is non-deterministic
lola: sara is running 0 secs || 36309 markings, 47334 edges, 7262 markings/sec, 0 secs
lola: sara is running 5 secs || 75099 markings, 98887 edges, 7758 markings/sec, 5 secs
lola: sara is running 10 secs || 113510 markings, 150961 edges, 7682 markings/sec, 10 secs
lola: sara is running 15 secs || 152009 markings, 202717 edges, 7700 markings/sec, 15 secs
lola: sara is running 20 secs || 190412 markings, 254361 edges, 7681 markings/sec, 20 secs
lola: sara is running 25 secs || 228742 markings, 306377 edges, 7666 markings/sec, 25 secs
lola: sara is running 30 secs || 266853 markings, 358437 edges, 7622 markings/sec, 30 secs
lola: sara is running 35 secs || 304852 markings, 410514 edges, 7600 markings/sec, 35 secs
lola: sara is running 40 secs || 343192 markings, 462163 edges, 7668 markings/sec, 40 secs
lola: sara is running 45 secs || 381174 markings, 514664 edges, 7596 markings/sec, 45 secs
lola: sara is running 50 secs || 418955 markings, 567626 edges, 7556 markings/sec, 50 secs
lola: sara is running 55 secs || 456963 markings, 619910 edges, 7602 markings/sec, 55 secs
lola: sara is running 60 secs || 495069 markings, 672106 edges, 7621 markings/sec, 60 secs
lola: sara is running 65 secs || 533465 markings, 724331 edges, 7679 markings/sec, 65 secs
lola: sara is running 70 secs || 571411 markings, 777063 edges, 7589 markings/sec, 70 secs
lola: sara is running 75 secs || 610209 markings, 828640 edges, 7760 markings/sec, 75 secs
lola: sara is running 80 secs || 648315 markings, 881165 edges, 7621 markings/sec, 80 secs
lola: sara is running 85 secs || 686672 markings, 933931 edges, 7671 markings/sec, 85 secs
lola: sara is running 90 secs || 724763 markings, 986931 edges, 7618 markings/sec, 90 secs
lola: sara is running 95 secs || 762989 markings, 1039459 edges, 7645 markings/sec, 95 secs
lola: sara is running 100 secs || 801176 markings, 1092176 edges, 7637 markings/sec, 100 secs
lola: sara is running 105 secs || 839061 markings, 1144568 edges, 7577 markings/sec, 105 secs
lola: sara is running 110 secs || 877075 markings, 1196432 edges, 7603 markings/sec, 110 secs
lola: sara is running 115 secs || 915061 markings, 1248082 edges, 7597 markings/sec, 115 secs
lola: sara is running 120 secs || 953115 markings, 1300955 edges, 7611 markings/sec, 120 secs
lola: sara is running 125 secs || 990620 markings, 1353913 edges, 7501 markings/sec, 125 secs
lola: sara is running 130 secs || 1028578 markings, 1406241 edges, 7592 markings/sec, 130 secs
lola: sara is running 135 secs || 1066733 markings, 1458632 edges, 7631 markings/sec, 135 secs
lola: sara is running 140 secs || 1104478 markings, 1510916 edges, 7549 markings/sec, 140 secs
lola: sara is running 145 secs || 1142417 markings, 1563489 edges, 7588 markings/sec, 145 secs
lola: sara is running 150 secs || 1179997 markings, 1616121 edges, 7516 markings/sec, 150 secs
lola: sara is running 155 secs || 1217761 markings, 1668152 edges, 7553 markings/sec, 155 secs
lola: sara is running 160 secs || 1255553 markings, 1720468 edges, 7558 markings/sec, 160 secs
lola: sara is running 165 secs || 1293302 markings, 1773016 edges, 7550 markings/sec, 165 secs
lola: sara is running 170 secs || 1331421 markings, 1824858 edges, 7624 markings/sec, 170 secs
lola: sara is running 175 secs || 1369508 markings, 1877824 edges, 7617 markings/sec, 175 secs
lola: sara is running 180 secs || 1407398 markings, 1930109 edges, 7578 markings/sec, 180 secs
lola: sara is running 185 secs || 1445390 markings, 1981972 edges, 7598 markings/sec, 185 secs
lola: sara is running 190 secs || 1483372 markings, 2033835 edges, 7596 markings/sec, 190 secs
lola: sara is running 195 secs || 1520882 markings, 2086741 edges, 7502 markings/sec, 195 secs
lola: sara is running 200 secs || 1558741 markings, 2139114 edges, 7572 markings/sec, 200 secs
lola: sara is running 205 secs || 1597036 markings, 2190675 edges, 7659 markings/sec, 205 secs
lola: sara is running 210 secs || 1634988 markings, 2243098 edges, 7590 markings/sec, 210 secs
lola: sara is running 215 secs || 1672793 markings, 2295717 edges, 7561 markings/sec, 215 secs
lola: local time limit reached - aborting
lola: Child process aborted or communication problem between parent and child process
terminate called after throwing an instance of 'std::runtime_error'
what(): parse error at position 0: unexpected character, last read: '!'
Aborted (core dumped)
FORMULA SimpleLoadBal-PT-15-ReachabilityFireability-0 CANNOT_COMPUTE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL USE_NUPN
FORMULA SimpleLoadBal-PT-15-ReachabilityFireability-1 CANNOT_COMPUTE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL USE_NUPN
FORMULA SimpleLoadBal-PT-15-ReachabilityFireability-2 CANNOT_COMPUTE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL USE_NUPN
FORMULA SimpleLoadBal-PT-15-ReachabilityFireability-3 CANNOT_COMPUTE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL USE_NUPN
FORMULA SimpleLoadBal-PT-15-ReachabilityFireability-4 CANNOT_COMPUTE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL USE_NUPN
FORMULA SimpleLoadBal-PT-15-ReachabilityFireability-5 CANNOT_COMPUTE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL USE_NUPN
FORMULA SimpleLoadBal-PT-15-ReachabilityFireability-6 CANNOT_COMPUTE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL USE_NUPN
FORMULA SimpleLoadBal-PT-15-ReachabilityFireability-7 CANNOT_COMPUTE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL USE_NUPN
FORMULA SimpleLoadBal-PT-15-ReachabilityFireability-8 CANNOT_COMPUTE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL USE_NUPN
FORMULA SimpleLoadBal-PT-15-ReachabilityFireability-9 CANNOT_COMPUTE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL USE_NUPN
FORMULA SimpleLoadBal-PT-15-ReachabilityFireability-10 CANNOT_COMPUTE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL USE_NUPN
FORMULA SimpleLoadBal-PT-15-ReachabilityFireability-11 CANNOT_COMPUTE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL USE_NUPN
FORMULA SimpleLoadBal-PT-15-ReachabilityFireability-12 CANNOT_COMPUTE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL USE_NUPN
FORMULA SimpleLoadBal-PT-15-ReachabilityFireability-13 CANNOT_COMPUTE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL USE_NUPN
FORMULA SimpleLoadBal-PT-15-ReachabilityFireability-14 CANNOT_COMPUTE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL USE_NUPN
FORMULA SimpleLoadBal-PT-15-ReachabilityFireability-15 CANNOT_COMPUTE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL USE_NUPN
----- Kill lola and sara stdout -----
----- Kill lola and sara stderr -----
----- Finished stdout -----
----- Finished 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="SimpleLoadBal-PT-15"
export BK_EXAMINATION="ReachabilityFireability"
export BK_TOOL="mcc4mcc-full"
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

tar xzf /home/mcc/BenchKit/INPUTS/SimpleLoadBal-PT-15.tgz
mv SimpleLoadBal-PT-15 execution
cd execution
pwd
ls -lh

# this is for BenchKit: explicit launching of the test
echo "====================================================================="
echo " Generated by BenchKit 2-3637"
echo " Executing tool mcc4mcc-full"
echo " Input is SimpleLoadBal-PT-15, 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 r178-smll-152708748200168"
echo "====================================================================="
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
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 ;