About the Execution of M4M.full for GPPP-PT-C1000N0000001000
Execution Summary | |||||
Max Memory Used (MB) |
Time wait (ms) | CPU Usage (ms) | I/O Wait (ms) | Computed Result | Execution Status |
15919.460 | 227654.00 | 430398.00 | 6160.00 | ???????????????? | normal |
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 188K
-rw-r--r-- 1 mcc users 3.4K May 15 18:54 CTLCardinality.txt
-rw-r--r-- 1 mcc users 19K May 15 18:54 CTLCardinality.xml
-rw-r--r-- 1 mcc users 2.8K May 15 18:54 CTLFireability.txt
-rw-r--r-- 1 mcc users 15K 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 5.7K May 15 18:50 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 2.6K May 26 09:26 LTLCardinality.txt
-rw-r--r-- 1 mcc users 12K May 26 09:26 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.3K May 26 09:26 LTLFireability.txt
-rw-r--r-- 1 mcc users 9.7K May 26 09:26 LTLFireability.xml
-rw-r--r-- 1 mcc users 3.9K May 15 18:54 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 20K May 15 18:54 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 115 May 15 18:54 ReachabilityDeadlock.txt
-rw-r--r-- 1 mcc users 353 May 15 18:54 ReachabilityDeadlock.xml
-rw-r--r-- 1 mcc users 3.7K May 15 18:54 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 19K May 15 18:54 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K May 15 18:54 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.8K 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 17 May 15 18:50 instance
-rw-r--r-- 1 mcc users 6 May 15 18:50 iscolored
-rw-r--r-- 1 mcc users 21K May 15 18:50 model.pnml
=====================================================================
Generated by BenchKit 2-3637
Executing tool mcc4mcc-full
Input is GPPP-PT-C1000N0000001000, examination is ReachabilityFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r094-blw7-152650006400357
=====================================================================
--------------------
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 GPPP-PT-C1000N0000001000-ReachabilityFireability-00
FORMULA_NAME GPPP-PT-C1000N0000001000-ReachabilityFireability-01
FORMULA_NAME GPPP-PT-C1000N0000001000-ReachabilityFireability-02
FORMULA_NAME GPPP-PT-C1000N0000001000-ReachabilityFireability-03
FORMULA_NAME GPPP-PT-C1000N0000001000-ReachabilityFireability-04
FORMULA_NAME GPPP-PT-C1000N0000001000-ReachabilityFireability-05
FORMULA_NAME GPPP-PT-C1000N0000001000-ReachabilityFireability-06
FORMULA_NAME GPPP-PT-C1000N0000001000-ReachabilityFireability-07
FORMULA_NAME GPPP-PT-C1000N0000001000-ReachabilityFireability-08
FORMULA_NAME GPPP-PT-C1000N0000001000-ReachabilityFireability-09
FORMULA_NAME GPPP-PT-C1000N0000001000-ReachabilityFireability-10
FORMULA_NAME GPPP-PT-C1000N0000001000-ReachabilityFireability-11
FORMULA_NAME GPPP-PT-C1000N0000001000-ReachabilityFireability-12
FORMULA_NAME GPPP-PT-C1000N0000001000-ReachabilityFireability-13
FORMULA_NAME GPPP-PT-C1000N0000001000-ReachabilityFireability-14
FORMULA_NAME GPPP-PT-C1000N0000001000-ReachabilityFireability-15
=== Now, execution of the tool begins
BK_START 1527552496970
BK_STOP 1527552724624
--------------------
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 GPPP-PT-C1000N0000001000 as instance name.
Using GPPP 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': False, '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': True, 'Conservative': False, 'Sub-Conservative': False, 'Nested Units': False, 'Safe': False, 'Deadlock': None, 'Reversible': None, 'Quasi Live': True, 'Live': None}.
Known tools are: [{'Time': 7499, 'Memory': 451.48, 'Tool': 'itstools'}, {'Time': 8078, 'Memory': 423.38, 'Tool': 'itstools'}, {'Time': 507841, 'Memory': 15951.52, 'Tool': 'lola'}, {'Time': 582336, 'Memory': 15951.33, 'Tool': 'lola'}].
Learned tools are: [{'Tool': 'lola'}].
Learned tool lola is 67.72116282170956x far from the best tool itstools.
ReachabilityFireability lola GPPP-PT-C1000N0000001000...
----- Start make prepare stderr -----
Time: 3600 - MCC
----- Start make prepare stdout -----
===========================================================================================
GPPP-PT-C1000N0000001000: translating PT Petri net model.pnml into LoLA format
===========================================================================================
translating PT Petri net complete
checking for too many tokens
===========================================================================================
GPPP-PT-C1000N0000001000: translating PT formula ReachabilityFireability into LoLA format
===========================================================================================
translating formula complete
touch formulae;
----- Start make result stdout -----
----- Start make result stderr -----
ReachabilityFireability @ GPPP-PT-C1000N0000001000 @ 3540 seconds
make: [verify] Error 134 (ignored)
----- Start make result stderr -----
Makefile:222: recipe for target 'verify' failed
----- Start make result stdout -----
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: 55/65536 symbol table entries, 0 collisions
lola: preprocessing...
lola: finding significant places
lola: 33 places, 22 transitions, 21 significant places
lola: computing forward-conflicting sets
lola: computing back-conflicting sets
lola: 30 transition conflict sets
lola: TASK
lola: reading formula from GPPP-PT-C1000N0000001000-ReachabilityFireability.task
lola: E (F ((FIREABLE(remove) AND NOT FIREABLE(GAP_dehydrogenase)))) : E (F ((FIREABLE(Glutathione_oxidation) AND FIREABLE(generate) AND NOT FIREABLE(Phosphoclucose_isomerase)))) : E (F (FIREABLE(Enolase))) : E (F ((FIREABLE(generate) AND FIREABLE(Ru5P_isomerase) AND FIREABLE(Phosphoglycerate_mutase) AND FIREABLE(Ru5P_epimerase)))) : E (F (((FIREABLE(Hexokinase) OR FIREABLE(Enolase) OR FIREABLE(TIM_backward) OR (NOT FIREABLE(Phosphoclucose_isomerase) AND NOT FIREABLE(Ru5P_epimerase))) AND FIREABLE(Pyruvate_kinase)))) : E (F ((FIREABLE(Transketolase2) AND FIREABLE(TIM_forward) AND FIREABLE(Aldolase) AND (FIREABLE(TIM_forward) OR FIREABLE(Enolase) OR (FIREABLE(G6P_dehydrogenase) AND FIREABLE(Hexokinase))) AND (FIREABLE(Ru5P_isomerase) OR FIREABLE(Transaldolase))))) : A (G ((NOT FIREABLE(TIM_forward) OR NOT FIREABLE(generate) OR (NOT FIREABLE(remove) AND NOT FIREABLE(generate)) OR NOT FIREABLE(remove) OR NOT FIREABLE(GAP_dehydrogenase) OR NOT FIREABLE(Lactate_dehydrogenase)))) : E (F (())) : E (F (FIREABLE(Pyruvate_kinase))) : E (F (((FIREABLE(TIM_backward) OR FIREABLE(Transketolase2) OR NOT FIREABLE(G6P_dehydrogenase)) AND FIREABLE(TIM_backward) AND FIREABLE(Phosphoglycerate_mutase) AND FIREABLE(Hexokinase) AND NOT FIREABLE(remove) AND (FIREABLE(Transketolase2) OR FIREABLE(Lactate_dehydrogenase))))) : A (G ((FIREABLE(G6P_dehydrogenase) OR NOT FIREABLE(Phosphoclucose_isomerase) OR FIREABLE(Phosphofructokinase) OR FIREABLE(Glutathione_oxidation) OR NOT FIREABLE(generate) OR FIREABLE(Phosphoglycerate_kinase)))) : A (G ((NOT FIREABLE(Phosphoclucose_isomerase) OR NOT FIREABLE(Transketolase1) OR NOT FIREABLE(Ru5P_isomerase) OR ((NOT FIREABLE(Phosphofructokinase) OR NOT FIREABLE(Glutathione_reductose)) AND FIREABLE(generate))))) : A (G ((NOT FIREABLE(Ru5P_epimerase) OR NOT FIREABLE(Transaldolase) OR NOT FIREABLE(Transaldolase) OR NOT FIREABLE(Lactate_dehydrogenase) OR (FIREABLE(TIM_forward) AND FIREABLE(GAP_dehydrogenase) AND (FIREABLE(Enolase) OR FIREABLE(Transaldolase))) OR NOT FIREABLE(Phosphoglycerate_mutase)))) : A (G (NOT FIREABLE(Enolase))) : A (G (((NOT FIREABLE(Glutathione_oxidation) AND NOT FIREABLE(Phosphoglycerate_kinase)) OR FIREABLE(Glutathione_reductose) OR NOT FIREABLE(Glutathione_oxidation) OR NOT FIREABLE(Phosphofructokinase) OR (NOT FIREABLE(Phosphoclucose_isomerase) AND NOT FIREABLE(Glutathione_reductose))))) : E (F (FIREABLE(Pyruvate_kinase)))
lola: computing a collection of formulas
lola: RUNNING
lola: subprocess 0 will run for 221 seconds at most (--localtimelimit=-1)
lola: ========================================
lola: ...considering subproblem: E (F ((FIREABLE(remove) AND NOT FIREABLE(GAP_dehydrogenase))))
lola: ========================================
lola: SUBTASK
lola: checking reachability
lola: Planning: workflow for reachability check: stateequation||search (--findpath=off)
lola: STORE
lola: using a bit-perfect encoder (--encoder=bit)
lola: using 84 bytes per marking, with 0 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 12 literals and 4 conjunctive subformulas
lola: state equation: write sara problem file to GPPP-PT-C1000N0000001000-ReachabilityFireability.sara
lola: state equation: calling and running sara
sara: try reading problem file GPPP-PT-C1000N0000001000-ReachabilityFireability.sara.
sara: place or transition ordering is non-deterministic
lola: sara is running 0 secs || 4643600 markings, 9257146 edges, 928720 markings/sec, 0 secs
lola: sara is running 5 secs || 9519477 markings, 18790960 edges, 975175 markings/sec, 5 secs
lola: sara is running 10 secs || 15270724 markings, 27992956 edges, 1150249 markings/sec, 10 secs
lola: sara is running 15 secs || 20927144 markings, 37043229 edges, 1131284 markings/sec, 15 secs
lola: sara is running 20 secs || 25875353 markings, 45722668 edges, 989642 markings/sec, 20 secs
lola: sara is running 25 secs || 29907585 markings, 53787133 edges, 806446 markings/sec, 25 secs
lola: sara is running 30 secs || 34694467 markings, 63353913 edges, 957376 markings/sec, 30 secs
lola: sara is running 35 secs || 39376587 markings, 72718153 edges, 936424 markings/sec, 35 secs
lola: sara is running 40 secs || 44023252 markings, 82011481 edges, 929333 markings/sec, 40 secs
lola: sara is running 45 secs || 49351833 markings, 90879385 edges, 1065716 markings/sec, 45 secs
lola: sara is running 50 secs || 54715475 markings, 99461211 edges, 1072728 markings/sec, 50 secs
lola: sara is running 55 secs || 60001099 markings, 107921681 edges, 1057125 markings/sec, 55 secs
lola: sara is running 60 secs || 64647004 markings, 116227286 edges, 929181 markings/sec, 60 secs
lola: sara is running 65 secs || 69118529 markings, 124246785 edges, 894305 markings/sec, 65 secs
lola: sara is running 70 secs || 73281793 markings, 131724810 edges, 832653 markings/sec, 70 secs
lola: sara is running 75 secs || 77563770 markings, 139408024 edges, 856395 markings/sec, 75 secs
lola: sara is running 80 secs || 81770836 markings, 146933051 edges, 841413 markings/sec, 80 secs
lola: sara is running 85 secs || 86016103 markings, 154562883 edges, 849053 markings/sec, 85 secs
lola: sara is running 90 secs || 90118530 markings, 161949478 edges, 820485 markings/sec, 90 secs
lola: sara is running 95 secs || 94293879 markings, 169435172 edges, 835070 markings/sec, 95 secs
lola: sara is running 100 secs || 98454802 markings, 176916769 edges, 832185 markings/sec, 100 secs
lola: sara is running 105 secs || 102545861 markings, 184269332 edges, 818212 markings/sec, 105 secs
lola: sara is running 110 secs || 106641345 markings, 191608489 edges, 819097 markings/sec, 110 secs
lola: sara is running 115 secs || 110713550 markings, 198926275 edges, 814441 markings/sec, 115 secs
lola: sara is running 120 secs || 114771381 markings, 206230947 edges, 811566 markings/sec, 120 secs
lola: sara is running 125 secs || 118907802 markings, 213620255 edges, 827284 markings/sec, 125 secs
lola: sara is running 130 secs || 123003515 markings, 221037187 edges, 819143 markings/sec, 130 secs
lola: sara is running 135 secs || 127104559 markings, 228366202 edges, 820209 markings/sec, 135 secs
lola: sara is running 140 secs || 131191372 markings, 235705756 edges, 817363 markings/sec, 140 secs
lola: sara is running 145 secs || 135317329 markings, 243098717 edges, 825191 markings/sec, 145 secs
lola: sara is running 150 secs || 139439008 markings, 250514286 edges, 824336 markings/sec, 150 secs
lola: sara is running 155 secs || 143561405 markings, 257952222 edges, 824479 markings/sec, 155 secs
lola: sara is running 160 secs || 147679368 markings, 265342202 edges, 823593 markings/sec, 160 secs
lola: sara is running 165 secs || 151746965 markings, 272633662 edges, 813519 markings/sec, 165 secs
lola: sara is running 170 secs || 155848379 markings, 280033815 edges, 820283 markings/sec, 170 secs
lola: sara is running 175 secs || 159960191 markings, 287431206 edges, 822362 markings/sec, 175 secs
lola: sara is running 180 secs || 164092384 markings, 294847417 edges, 826439 markings/sec, 180 secs
lola: sara is running 185 secs || 167962405 markings, 301727038 edges, 774004 markings/sec, 185 secs
lola: sara is running 190 secs || 171955219 markings, 308986411 edges, 798563 markings/sec, 190 secs
lola: sara is running 195 secs || 175962162 markings, 316175360 edges, 801389 markings/sec, 195 secs
lola: sara is running 200 secs || 175991735 markings, 316222683 edges, 5915 markings/sec, 200 secs
lola: sara is running 205 secs || 175994654 markings, 316227353 edges, 584 markings/sec, 205 secs
lola: sara is running 210 secs || 176006710 markings, 316246645 edges, 2411 markings/sec, 210 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 GPPP-PT-C1000N0000001000-ReachabilityFireability-0 CANNOT_COMPUTE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL USE_NUPN
FORMULA GPPP-PT-C1000N0000001000-ReachabilityFireability-1 CANNOT_COMPUTE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL USE_NUPN
FORMULA GPPP-PT-C1000N0000001000-ReachabilityFireability-2 CANNOT_COMPUTE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL USE_NUPN
FORMULA GPPP-PT-C1000N0000001000-ReachabilityFireability-3 CANNOT_COMPUTE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL USE_NUPN
FORMULA GPPP-PT-C1000N0000001000-ReachabilityFireability-4 CANNOT_COMPUTE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL USE_NUPN
FORMULA GPPP-PT-C1000N0000001000-ReachabilityFireability-5 CANNOT_COMPUTE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL USE_NUPN
FORMULA GPPP-PT-C1000N0000001000-ReachabilityFireability-6 CANNOT_COMPUTE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL USE_NUPN
FORMULA GPPP-PT-C1000N0000001000-ReachabilityFireability-7 CANNOT_COMPUTE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL USE_NUPN
FORMULA GPPP-PT-C1000N0000001000-ReachabilityFireability-8 CANNOT_COMPUTE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL USE_NUPN
FORMULA GPPP-PT-C1000N0000001000-ReachabilityFireability-9 CANNOT_COMPUTE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL USE_NUPN
FORMULA GPPP-PT-C1000N0000001000-ReachabilityFireability-10 CANNOT_COMPUTE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL USE_NUPN
FORMULA GPPP-PT-C1000N0000001000-ReachabilityFireability-11 CANNOT_COMPUTE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL USE_NUPN
FORMULA GPPP-PT-C1000N0000001000-ReachabilityFireability-12 CANNOT_COMPUTE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL USE_NUPN
FORMULA GPPP-PT-C1000N0000001000-ReachabilityFireability-13 CANNOT_COMPUTE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL USE_NUPN
FORMULA GPPP-PT-C1000N0000001000-ReachabilityFireability-14 CANNOT_COMPUTE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL USE_NUPN
FORMULA GPPP-PT-C1000N0000001000-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="GPPP-PT-C1000N0000001000"
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/GPPP-PT-C1000N0000001000.tgz
mv GPPP-PT-C1000N0000001000 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 GPPP-PT-C1000N0000001000, 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 r094-blw7-152650006400357"
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 '
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 ;