fond
Model Checking Contest 2019
9th edition, Prague, Czech Republic, April 7, 2019 (TOOLympics)
Execution of r033-smll-155225133700111
Last Updated
Apr 15, 2019

About the Execution of 2018-Gold for ClientsAndServers-PT-N0020P3

Execution Summary
Max Memory
Used (MB)
Time wait (ms) CPU Usage (ms) I/O Wait (ms) Computed Result Execution
Status
15918.020 940678.00 925838.00 7016.40 TFFFF?FFFFFFFFFF normal

Execution Chart

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

Trace from the execution

Formatting '/data/fkordon/mcc2019-input.r033-smll-155225133700111.qcow2', fmt=qcow2 size=4294967296 backing_file='/data/fkordon/mcc2019-input.qcow2' encryption=off cluster_size=65536 lazy_refcounts=off
Waiting for the VM to be ready (probing ssh)
.....................
=====================================================================
Generated by BenchKit 2-3957
Executing tool win2018
Input is ClientsAndServers-PT-N0020P3, examination is LTLFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r033-smll-155225133700111
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 184K
-rw-r--r-- 1 mcc users 3.6K Feb 9 08:37 CTLCardinality.txt
-rw-r--r-- 1 mcc users 21K Feb 9 08:37 CTLCardinality.xml
-rw-r--r-- 1 mcc users 2.6K Feb 5 07:22 CTLFireability.txt
-rw-r--r-- 1 mcc users 18K Feb 5 07:22 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.0K Mar 10 17:31 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.2K Mar 10 17:31 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 115 Feb 24 15:05 GlobalProperties.txt
-rw-r--r-- 1 mcc users 353 Feb 24 15:05 GlobalProperties.xml
-rw-r--r-- 1 mcc users 2.3K Feb 4 23:09 LTLCardinality.txt
-rw-r--r-- 1 mcc users 8.6K Feb 4 23:09 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.0K Feb 4 22:33 LTLFireability.txt
-rw-r--r-- 1 mcc users 8.3K Feb 4 22:33 LTLFireability.xml
-rw-r--r-- 1 mcc users 3.6K Feb 2 01:46 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 18K Feb 2 01:46 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 2.9K Jan 29 15:27 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 18K Jan 29 15:27 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.8K Feb 4 22:18 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.8K Feb 4 22:18 UpperBounds.xml

-rw-r--r-- 1 mcc users 6 Jan 29 09:34 equiv_col
-rw-r--r-- 1 mcc users 8 Jan 29 09:34 instance
-rw-r--r-- 1 mcc users 6 Jan 29 09:34 iscolored
-rw-r--r-- 1 mcc users 9.2K Mar 10 17:31 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 ClientsAndServers-PT-N0020P3-LTLFireability-00
FORMULA_NAME ClientsAndServers-PT-N0020P3-LTLFireability-01
FORMULA_NAME ClientsAndServers-PT-N0020P3-LTLFireability-02
FORMULA_NAME ClientsAndServers-PT-N0020P3-LTLFireability-03
FORMULA_NAME ClientsAndServers-PT-N0020P3-LTLFireability-04
FORMULA_NAME ClientsAndServers-PT-N0020P3-LTLFireability-05
FORMULA_NAME ClientsAndServers-PT-N0020P3-LTLFireability-06
FORMULA_NAME ClientsAndServers-PT-N0020P3-LTLFireability-07
FORMULA_NAME ClientsAndServers-PT-N0020P3-LTLFireability-08
FORMULA_NAME ClientsAndServers-PT-N0020P3-LTLFireability-09
FORMULA_NAME ClientsAndServers-PT-N0020P3-LTLFireability-10
FORMULA_NAME ClientsAndServers-PT-N0020P3-LTLFireability-11
FORMULA_NAME ClientsAndServers-PT-N0020P3-LTLFireability-12
FORMULA_NAME ClientsAndServers-PT-N0020P3-LTLFireability-13
FORMULA_NAME ClientsAndServers-PT-N0020P3-LTLFireability-14
FORMULA_NAME ClientsAndServers-PT-N0020P3-LTLFireability-15

=== Now, execution of the tool begins

BK_START 1552323915309

info: Time: 3600 - MCC
===========================================================================================
prep: translating ClientsAndServers-PT-N0020P3 Petri net model.pnml into LoLA format
===========================================================================================
prep: translating PT Petri net complete
prep: check for too many tokens
===========================================================================================
prep: translating ClientsAndServers-PT-N0020P3 formula LTLFireability into LoLA format
===========================================================================================
prep: translating PT formula complete
vrfy: Checking LTLFireability @ ClientsAndServers-PT-N0020P3 @ 3570 seconds
lola: LoLA will run for 3570 seconds at most (--timelimit)
lola: NET
lola: reading net from model.pnml.lola
lola: finished parsing
lola: closed net file model.pnml.lola
lola: 43/65536 symbol table entries, 0 collisions
lola: preprocessing...
lola: Size of bit vector: 800
lola: finding significant places
lola: 25 places, 18 transitions, 17 significant places
lola: computing forward-conflicting sets
lola: computing back-conflicting sets
lola: 25 transition conflict sets
lola: TASK
lola: reading formula from ClientsAndServers-PT-N0020P3-LTLFireability.task
lola: A (F (X ((F (FIREABLE(ssG)) U X (FIREABLE(maU)))))) : A (G ((FIREABLE(mrR) U (FIREABLE(msA) U FIREABLE(csR))))) : A ((FIREABLE(msA) U G (F (G (FIREABLE(ssA)))))) : A (X (X ((G (FIREABLE(srR)) U FIREABLE(srG))))) : A (FIREABLE(csF)) : A (X ((F (FIREABLE(ssG)) U X (FIREABLE(crA))))) : A (X (FIREABLE(msG))) : A (FIREABLE(srF)) : A (G (G ((X (FIREABLE(csR)) U FIREABLE(msG))))) : A (F ((FIREABLE(srR) U FIREABLE(srA)))) : A (((X (FIREABLE(ssA)) U FIREABLE(msG)) U FIREABLE(mrR))) : A (FIREABLE(msA)) : A (G (G (FIREABLE(csF)))) : A (FIREABLE(msG)) : A (G (X (X (X (FIREABLE(maU)))))) : A (X (X (FIREABLE(mrF))))
lola: rewrite Frontend/Parser/formula_rewrite.k:356
lola: rewrite Frontend/Parser/formula_rewrite.k:434
lola: rewrite Frontend/Parser/formula_rewrite.k:356
lola: rewrite Frontend/Parser/formula_rewrite.k:437
lola: rewrite Frontend/Parser/formula_rewrite.k:434
lola: rewrite Frontend/Parser/formula_rewrite.k:522
lola: rewrite Frontend/Parser/formula_rewrite.k:545
lola: rewrite Frontend/Parser/formula_rewrite.k:374
lola: rewrite Frontend/Parser/formula_rewrite.k:422
lola: rewrite Frontend/Parser/formula_rewrite.k:431
lola: rewrite Frontend/Parser/formula_rewrite.k:151
lola: rewrite Frontend/Parser/formula_rewrite.k:151
lola: rewrite Frontend/Parser/formula_rewrite.k:437
lola: rewrite Frontend/Parser/formula_rewrite.k:522
lola: rewrite Frontend/Parser/formula_rewrite.k:350
lola: rewrite Frontend/Parser/formula_rewrite.k:545
lola: rewrite Frontend/Parser/formula_rewrite.k:434
lola: rewrite Frontend/Parser/formula_rewrite.k:151
lola: rewrite Frontend/Parser/formula_rewrite.k:350
lola: rewrite Frontend/Parser/formula_rewrite.k:151
lola: rewrite Frontend/Parser/formula_rewrite.k:353
lola: rewrite Frontend/Parser/formula_rewrite.k:353
lola: rewrite Frontend/Parser/formula_rewrite.k:353
lola: computing a collection of formulas
lola: RUNNING
lola: subprocess 0 will run for 223 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: FIREABLE(csF)
lola: ========================================
lola: SUBTASK
lola: checking initial satisfaction
lola: processed formula: FIREABLE(csF)
lola: processed formula length: 13
lola: 23 rewrites
lola: closed formula file ClientsAndServers-PT-N0020P3-LTLFireability.task
lola: processed formula with 0 atomic propositions
lola: RUNNING
lola: SUBRESULT
lola: result: no
lola: produced by: preprocessing
lola: The net violates the given property already in its initial state.
lola: 0 markings, 0 edges
lola: ========================================

FORMULA ClientsAndServers-PT-N0020P3-LTLFireability-4 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT
lola: subprocess 1 will run for 238 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: FIREABLE(srF)
lola: ========================================
lola: SUBTASK
lola: checking initial satisfaction
lola: processed formula: FIREABLE(srF)
lola: processed formula length: 13
lola: 23 rewrites
lola: closed formula file ClientsAndServers-PT-N0020P3-LTLFireability.task
lola: processed formula with 0 atomic propositions
lola: RUNNING
lola: SUBRESULT
lola: result: no
lola: produced by: preprocessing
lola: The net violates the given property already in its initial state.
lola: 0 markings, 0 edges
lola: ========================================

FORMULA ClientsAndServers-PT-N0020P3-LTLFireability-7 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT
lola: subprocess 2 will run for 255 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: FIREABLE(msA)
lola: ========================================
lola: SUBTASK
lola: checking initial satisfaction
lola: processed formula: FIREABLE(msA)
lola: processed formula length: 13
lola: 23 rewrites
lola: closed formula file ClientsAndServers-PT-N0020P3-LTLFireability.task
lola: processed formula with 0 atomic propositions
lola: RUNNING
lola: SUBRESULT
lola: result: no
lola: produced by: preprocessing
lola: The net violates the given property already in its initial state.
lola: 0 markings, 0 edges
lola: ========================================

FORMULA ClientsAndServers-PT-N0020P3-LTLFireability-11 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT
lola: subprocess 3 will run for 274 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: FIREABLE(msG)
lola: ========================================
lola: SUBTASK
lola: checking initial satisfaction
lola: processed formula: FIREABLE(msG)
lola: processed formula length: 13
lola: 23 rewrites
lola: closed formula file ClientsAndServers-PT-N0020P3-LTLFireability.task
lola: processed formula with 0 atomic propositions
lola: RUNNING
lola: SUBRESULT
lola: result: no
lola: produced by: preprocessing
lola: The net violates the given property already in its initial state.
lola: 0 markings, 0 edges
lola: ========================================

FORMULA ClientsAndServers-PT-N0020P3-LTLFireability-13 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT
lola: subprocess 4 will run for 297 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: A (X (FIREABLE(msG)))
lola: ========================================
lola: SUBTASK
lola: checking LTL
lola: transforming LTL-Formula into a Büchi-Automaton
lola: processed formula: A (X (FIREABLE(msG)))
lola: processed formula length: 21
lola: 23 rewrites
lola: closed formula file ClientsAndServers-PT-N0020P3-LTLFireability.task
lola: the resulting Büchi automaton has 3 states
lola: STORE
lola: using a simple compression encoder (--encoder=simplecompressed)
lola: using a prefix tree store (--store=prefix)
lola: Formula contains X operator; stubborn sets not applicable
lola: SEARCH
lola: RUNNING
lola: SUBRESULT
lola: result: no
lola: produced by: LTL model checker
lola: The net does not satisfy the given formula (language of the product automaton is nonempty).
lola: 1217 markings, 1217 edges
lola: ========================================

FORMULA ClientsAndServers-PT-N0020P3-LTLFireability-6 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT
lola: subprocess 5 will run for 324 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: A (X (X ((FIREABLE(srG) OR (G (FIREABLE(srR)) AND F (FIREABLE(srG)))))))
lola: ========================================
lola: SUBTASK
lola: checking LTL
lola: transforming LTL-Formula into a Büchi-Automaton
lola: processed formula: A (X (X ((FIREABLE(srG) OR (G (FIREABLE(srR)) AND F (FIREABLE(srG)))))))
lola: processed formula length: 72
lola: 23 rewrites
lola: closed formula file ClientsAndServers-PT-N0020P3-LTLFireability.task
lola: the resulting Büchi automaton has 7 states
lola: STORE
lola: using a simple compression encoder (--encoder=simplecompressed)
lola: using a prefix tree store (--store=prefix)
lola: Formula contains X operator; stubborn sets not applicable
lola: SEARCH
lola: RUNNING
lola: 1800111 markings, 5071221 edges, 360022 markings/sec, 0 secs
lola: 3700096 markings, 10600741 edges, 379997 markings/sec, 5 secs
lola: 5602616 markings, 16120676 edges, 380504 markings/sec, 10 secs
lola: 7511533 markings, 21675709 edges, 381783 markings/sec, 15 secs
lola: 9463206 markings, 27335958 edges, 390335 markings/sec, 20 secs
lola: 11397732 markings, 32961897 edges, 386905 markings/sec, 25 secs
lola: 13363820 markings, 38666200 edges, 393218 markings/sec, 30 secs
lola: 15323244 markings, 44367512 edges, 391885 markings/sec, 35 secs
lola: 17203452 markings, 49822423 edges, 376042 markings/sec, 40 secs
lola: 19164038 markings, 55509399 edges, 392117 markings/sec, 45 secs
lola: 21155949 markings, 61299278 edges, 398382 markings/sec, 50 secs
lola: 23163236 markings, 67134230 edges, 401457 markings/sec, 55 secs
lola: 25164508 markings, 72954913 edges, 400254 markings/sec, 60 secs
lola: 27174392 markings, 78778649 edges, 401977 markings/sec, 65 secs
lola: 29200090 markings, 84664823 edges, 405140 markings/sec, 70 secs
lola: 31275188 markings, 90692504 edges, 415020 markings/sec, 75 secs
lola: SUBRESULT
lola: result: no
lola: produced by: LTL model checker
lola: The net does not satisfy the given formula (language of the product automaton is nonempty).
lola: 33408297 markings, 96853375 edges
lola: ========================================

FORMULA ClientsAndServers-PT-N0020P3-LTLFireability-3 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT
lola: subprocess 6 will run for 348 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: (A (G (F (FIREABLE(msG)))) AND A (G ((X (FIREABLE(csR)) OR FIREABLE(msG)))))
lola: ========================================
lola: SUBTASK
lola: checking a Boolean combination of formulas
lola: RUNNING
lola: subprocess 6 will run for 348 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: A (G (F (FIREABLE(msG))))
lola: ========================================
lola: SUBTASK
lola: checking LTL
lola: transforming LTL-Formula into a Büchi-Automaton
lola: processed formula: A (G (F (FIREABLE(msG))))
lola: processed formula length: 25
lola: 23 rewrites
lola: closed formula file ClientsAndServers-PT-N0020P3-LTLFireability.task
lola: the resulting Büchi automaton has 2 states
lola: STORE
lola: using a simple compression encoder (--encoder=simplecompressed)
lola: using a prefix tree store (--store=prefix)
lola: using ltl preserving stubborn set method (--stubborn)
lola: SEARCH
lola: RUNNING
lola: SUBRESULT
lola: result: no
lola: produced by: LTL model checker
lola: The net does not satisfy the given formula (language of the product automaton is nonempty).
lola: 1691594 markings, 2452072 edges
lola: ========================================
lola: SUBRESULT
lola: result: no
lola: The Boolean predicate is false.
lola: ========================================

FORMULA ClientsAndServers-PT-N0020P3-LTLFireability-8 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT
lola: subprocess 7 will run for 387 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: A (((X (FIREABLE(ssA)) U FIREABLE(msG)) U FIREABLE(mrR)))
lola: ========================================
lola: SUBTASK
lola: checking LTL
lola: transforming LTL-Formula into a Büchi-Automaton
lola: processed formula: A (((X (FIREABLE(ssA)) U FIREABLE(msG)) U FIREABLE(mrR)))
lola: processed formula length: 57
lola: 23 rewrites
lola: closed formula file ClientsAndServers-PT-N0020P3-LTLFireability.task
lola: the resulting Büchi automaton has 4 states
lola: STORE
lola: using a simple compression encoder (--encoder=simplecompressed)
lola: using a prefix tree store (--store=prefix)
lola: Formula contains X operator; stubborn sets not applicable
lola: SEARCH
lola: RUNNING
lola: SUBRESULT
lola: result: no
lola: produced by: LTL model checker
lola: The net does not satisfy the given formula (language of the product automaton is nonempty).
lola: 1217 markings, 1217 edges
lola: ========================================

FORMULA ClientsAndServers-PT-N0020P3-LTLFireability-10 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT
lola: subprocess 8 will run for 435 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: A (X (X (F (FIREABLE(maU)))))
lola: ========================================
lola: SUBTASK
lola: checking LTL
lola: transforming LTL-Formula into a Büchi-Automaton
lola: processed formula: A (X (X (F (FIREABLE(maU)))))
lola: processed formula length: 29
lola: 23 rewrites
lola: closed formula file ClientsAndServers-PT-N0020P3-LTLFireability.task
lola: the resulting Büchi automaton has 3 states
lola: STORE
lola: using a simple compression encoder (--encoder=simplecompressed)
lola: using a prefix tree store (--store=prefix)
lola: Formula contains X operator; stubborn sets not applicable
lola: SEARCH
lola: RUNNING
lola: SUBRESULT
lola: result: yes
lola: produced by: LTL model checker
lola: The net satisfies the given formula (language of the product automaton is empty).
lola: 225541 markings, 444440 edges
lola: ========================================

FORMULA ClientsAndServers-PT-N0020P3-LTLFireability-0 TRUE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT
lola: subprocess 9 will run for 497 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: A (X ((F (FIREABLE(ssG)) U X (FIREABLE(crA)))))
lola: ========================================
lola: SUBTASK
lola: checking LTL
lola: transforming LTL-Formula into a Büchi-Automaton
lola: processed formula: A (X ((F (FIREABLE(ssG)) U X (FIREABLE(crA)))))
lola: processed formula length: 47
lola: 23 rewrites
lola: closed formula file ClientsAndServers-PT-N0020P3-LTLFireability.task
lola: the resulting Büchi automaton has 5 states
lola: STORE
lola: using a simple compression encoder (--encoder=simplecompressed)
lola: using a prefix tree store (--store=prefix)
lola: Formula contains X operator; stubborn sets not applicable
lola: SEARCH
lola: RUNNING
lola: 2042054 markings, 5540680 edges, 408411 markings/sec, 0 secs
lola: 3661272 markings, 10830716 edges, 323844 markings/sec, 5 secs
lola: 5161394 markings, 15966682 edges, 300024 markings/sec, 10 secs
lola: 6706959 markings, 20979664 edges, 309113 markings/sec, 15 secs
lola: 8207584 markings, 26088409 edges, 300125 markings/sec, 20 secs
lola: 9684081 markings, 31143547 edges, 295299 markings/sec, 25 secs
lola: 11228918 markings, 36143706 edges, 308967 markings/sec, 30 secs
lola: 12717637 markings, 41215008 edges, 297744 markings/sec, 35 secs
lola: 14170046 markings, 46206810 edges, 290482 markings/sec, 40 secs
lola: 15712098 markings, 51194157 edges, 308410 markings/sec, 45 secs
lola: 17184208 markings, 56208375 edges, 294422 markings/sec, 50 secs
lola: 18611897 markings, 61134780 edges, 285538 markings/sec, 55 secs
lola: 20155941 markings, 66107518 edges, 308809 markings/sec, 60 secs
lola: 21613055 markings, 71086341 edges, 291423 markings/sec, 65 secs
lola: 23037337 markings, 75937383 edges, 284856 markings/sec, 70 secs
lola: 24592023 markings, 80993585 edges, 310937 markings/sec, 75 secs
lola: 26047418 markings, 85973932 edges, 291079 markings/sec, 80 secs
lola: 27531009 markings, 90802092 edges, 296718 markings/sec, 85 secs
lola: 29006598 markings, 95819476 edges, 295118 markings/sec, 90 secs
lola: 30421354 markings, 100677284 edges, 282951 markings/sec, 95 secs
lola: 31797987 markings, 105130157 edges, 275327 markings/sec, 100 secs
lola: 33183818 markings, 109873700 edges, 277166 markings/sec, 105 secs
lola: 34572340 markings, 114604626 edges, 277704 markings/sec, 110 secs
lola: 36120073 markings, 119648337 edges, 309547 markings/sec, 115 secs
lola: 37576921 markings, 124633412 edges, 291370 markings/sec, 120 secs
lola: 39076212 markings, 129510316 edges, 299858 markings/sec, 125 secs
lola: 40554590 markings, 134535362 edges, 295676 markings/sec, 130 secs
lola: 41997736 markings, 139489035 edges, 288629 markings/sec, 135 secs
lola: 43526159 markings, 144435346 edges, 305685 markings/sec, 140 secs
lola: 44983483 markings, 149413243 edges, 291465 markings/sec, 145 secs
lola: 46408364 markings, 154311548 edges, 284976 markings/sec, 150 secs
lola: 47811138 markings, 158839988 edges, 280555 markings/sec, 155 secs
lola: 49241147 markings, 163725455 edges, 286002 markings/sec, 160 secs
lola: 50690896 markings, 168565995 edges, 289950 markings/sec, 165 secs
lola: 52224909 markings, 173658013 edges, 306803 markings/sec, 170 secs
lola: 53696314 markings, 178689003 edges, 294281 markings/sec, 175 secs
lola: 55173242 markings, 183484349 edges, 295386 markings/sec, 180 secs
lola: 56647484 markings, 188505178 edges, 294848 markings/sec, 185 secs
lola: 58084541 markings, 193438531 edges, 287411 markings/sec, 190 secs
lola: 59593051 markings, 198324475 edges, 301702 markings/sec, 195 secs
lola: 61073484 markings, 203363942 edges, 296087 markings/sec, 200 secs
lola: 62514590 markings, 208324440 edges, 288221 markings/sec, 205 secs
lola: 64055759 markings, 213291067 edges, 308234 markings/sec, 210 secs
lola: 65512890 markings, 218268273 edges, 291426 markings/sec, 215 secs
lola: 66918354 markings, 223141573 edges, 281093 markings/sec, 220 secs
lola: 68477297 markings, 228135463 edges, 311789 markings/sec, 225 secs
lola: 69922814 markings, 233083149 edges, 289103 markings/sec, 230 secs
lola: 71418909 markings, 237971210 edges, 299219 markings/sec, 235 secs
lola: 72930228 markings, 243083388 edges, 302264 markings/sec, 240 secs
lola: 74408698 markings, 248141859 edges, 295694 markings/sec, 245 secs
lola: 75931775 markings, 253086933 edges, 304615 markings/sec, 250 secs
lola: 77422678 markings, 258163424 edges, 298181 markings/sec, 255 secs
lola: 78884299 markings, 263170802 edges, 292324 markings/sec, 260 secs
lola: 80428673 markings, 268168614 edges, 308875 markings/sec, 265 secs
lola: 81897161 markings, 273182646 edges, 293698 markings/sec, 270 secs
lola: 83333219 markings, 278118421 edges, 287212 markings/sec, 275 secs
lola: 84873917 markings, 283090810 edges, 308140 markings/sec, 280 secs
lola: 86338951 markings, 288093571 edges, 293007 markings/sec, 285 secs
lola: 87758516 markings, 293002144 edges, 283913 markings/sec, 290 secs
lola: 89338466 markings, 298079105 edges, 315990 markings/sec, 295 secs
lola: 90815084 markings, 303117880 edges, 295324 markings/sec, 300 secs
lola: 92261361 markings, 308020638 edges, 289255 markings/sec, 305 secs
lola: 93803151 markings, 313061387 edges, 308358 markings/sec, 310 secs
lola: 95260234 markings, 318047459 edges, 291417 markings/sec, 315 secs
lola: 96752897 markings, 322898369 edges, 298533 markings/sec, 320 secs
lola: 98252697 markings, 327993109 edges, 299960 markings/sec, 325 secs
lola: 99714163 markings, 333001900 edges, 292293 markings/sec, 330 secs
lola: 101220726 markings, 337881888 edges, 301313 markings/sec, 335 secs
lola: 102689428 markings, 342892226 edges, 293740 markings/sec, 340 secs
lola: 104133676 markings, 347855949 edges, 288850 markings/sec, 345 secs
lola: 105672612 markings, 352826830 edges, 307787 markings/sec, 350 secs
lola: 107168314 markings, 357922373 edges, 299140 markings/sec, 355 secs
lola: 108638307 markings, 362982035 edges, 293999 markings/sec, 360 secs
lola: 110212954 markings, 368053551 edges, 314929 markings/sec, 365 secs
lola: 111669324 markings, 373028135 edges, 291274 markings/sec, 370 secs
lola: 113040655 markings, 377714407 edges, 274266 markings/sec, 375 secs
lola: 114535895 markings, 382583184 edges, 299048 markings/sec, 380 secs
lola: 115787378 markings, 386910260 edges, 250297 markings/sec, 385 secs
lola: Child process aborted or communication problem between parent and child process
lola: subprocess 10 will run for 514 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: A (X (X (X (G (FIREABLE(maU))))))
lola: ========================================
lola: SUBTASK
lola: checking LTL
lola: transforming LTL-Formula into a Büchi-Automaton
lola: processed formula: A (X (X (X (G (FIREABLE(maU))))))
lola: processed formula length: 33
lola: 23 rewrites
lola: closed formula file ClientsAndServers-PT-N0020P3-LTLFireability.task
lola: the resulting Büchi automaton has 5 states
lola: STORE
lola: using a simple compression encoder (--encoder=simplecompressed)
lola: using a prefix tree store (--store=prefix)
lola: Formula contains X operator; stubborn sets not applicable
lola: SEARCH
lola: RUNNING
lola: SUBRESULT
lola: result: no
lola: produced by: LTL model checker
lola: The net does not satisfy the given formula (language of the product automaton is nonempty).
lola: 1217 markings, 1217 edges
lola: ========================================

FORMULA ClientsAndServers-PT-N0020P3-LTLFireability-14 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT
lola: subprocess 11 will run for 617 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: A (X (X (FIREABLE(mrF))))
lola: ========================================
lola: SUBTASK
lola: checking LTL
lola: transforming LTL-Formula into a Büchi-Automaton
lola: processed formula: A (X (X (FIREABLE(mrF))))
lola: processed formula length: 25
lola: 23 rewrites
lola: closed formula file ClientsAndServers-PT-N0020P3-LTLFireability.task
lola: the resulting Büchi automaton has 4 states
lola: STORE
lola: using a simple compression encoder (--encoder=simplecompressed)
lola: using a prefix tree store (--store=prefix)
lola: Formula contains X operator; stubborn sets not applicable
lola: SEARCH
lola: RUNNING
lola: SUBRESULT
lola: result: no
lola: produced by: LTL model checker
lola: The net does not satisfy the given formula (language of the product automaton is nonempty).
lola: 1217 markings, 1217 edges
lola: ========================================

FORMULA ClientsAndServers-PT-N0020P3-LTLFireability-15 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT
lola: subprocess 12 will run for 772 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: A (G (FIREABLE(csF)))
lola: ========================================
lola: SUBTASK
lola: checking invariance
lola: Planning: workflow for reachability check: stateequation||search (--findpath=off)
lola: rewrite Frontend/Parser/formula_rewrite.k:631
lola: rewrite Frontend/Parser/formula_rewrite.k:694
lola: processed formula: A (G (FIREABLE(csF)))
lola: processed formula length: 21
lola: 25 rewrites
lola: closed formula file ClientsAndServers-PT-N0020P3-LTLFireability.task
lola: STORE
lola: using a simple compression encoder (--encoder=simplecompressed)
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: SUBRESULT
lola: result: no
lola: produced by: state space
lola: rewrite Frontend/Parser/formula_rewrite.k:631
lola: rewrite Frontend/Parser/formula_rewrite.k:694
lola: formula 0: NOT FIREABLE(csF)
lola: state equation: Generated DNF with 1 literals and 1 conjunctive subformulas
lola: The predicate is not invariant.
lola: 0 markings, 0 edges
lola: ========================================

FORMULA ClientsAndServers-PT-N0020P3-LTLFireability-12 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT
lola: subprocess 13 will run for 1029 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: A (F (FIREABLE(srA)))
lola: ========================================
lola: SUBTASK
lola: checking eventual occurrence
lola: rewrite Frontend/Parser/formula_rewrite.k:659
lola: rewrite Frontend/Parser/formula_rewrite.k:694
lola: processed formula: NOT FIREABLE(srA)
lola: processed formula length: 17
lola: 25 rewrites
lola: closed formula file ClientsAndServers-PT-N0020P3-LTLFireability.task
lola: STORE
lola: using a simple compression encoder (--encoder=simplecompressed)
lola: using a prefix tree store (--store=prefix)
lola: SEARCH (state space / EG)
lola: state space: using search routine for EG formula (--search=depth)
lola: state space: using EG preserving stubborn set method (--stubborn=tarjan)
lola: RUNNING
lola: 4318622 markings, 5205184 edges, 863724 markings/sec, 0 secs
lola: 8490007 markings, 10209666 edges, 834277 markings/sec, 5 secs
lola: 12492625 markings, 15014106 edges, 800524 markings/sec, 10 secs
lola: SUBRESULT
lola: result: no
lola: produced by: state space / EG
lola: The predicate does not eventually occur.
lola: 12636561 markings, 15186528 edges
lola: ========================================

FORMULA ClientsAndServers-PT-N0020P3-LTLFireability-9 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT
lola: subprocess 14 will run for 1537 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: A (F (G (FIREABLE(ssA))))
lola: ========================================
lola: SUBTASK
lola: checking LTL
lola: transforming LTL-Formula into a Büchi-Automaton
lola: processed formula: A (F (G (FIREABLE(ssA))))
lola: processed formula length: 25
lola: 23 rewrites
lola: closed formula file ClientsAndServers-PT-N0020P3-LTLFireability.task
lola: the resulting Büchi automaton has 2 states
lola: STORE
lola: using a simple compression encoder (--encoder=simplecompressed)
lola: using a prefix tree store (--store=prefix)
lola: using ltl preserving stubborn set method (--stubborn)
lola: SEARCH
lola: RUNNING
lola: SUBRESULT
lola: result: no
lola: produced by: LTL model checker
lola: The net does not satisfy the given formula (language of the product automaton is nonempty).
lola: 727 markings, 728 edges
lola: ========================================

FORMULA ClientsAndServers-PT-N0020P3-LTLFireability-2 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT
lola: subprocess 15 will run for 3074 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: (A (G (F (FIREABLE(csR)))) AND A (G ((FIREABLE(mrR) OR (FIREABLE(msA) U FIREABLE(csR))))))
lola: ========================================
lola: SUBTASK
lola: checking a Boolean combination of formulas
lola: RUNNING
lola: subprocess 15 will run for 3074 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: A (G (F (FIREABLE(csR))))
lola: ========================================
lola: SUBTASK
lola: checking LTL
lola: transforming LTL-Formula into a Büchi-Automaton
lola: processed formula: A (G (F (FIREABLE(csR))))
lola: processed formula length: 25
lola: 23 rewrites
lola: closed formula file ClientsAndServers-PT-N0020P3-LTLFireability.task
lola: the resulting Büchi automaton has 2 states
lola: STORE
lola: using a simple compression encoder (--encoder=simplecompressed)
lola: using a prefix tree store (--store=prefix)
lola: using ltl preserving stubborn set method (--stubborn)
lola: SEARCH
lola: RUNNING
lola: SUBRESULT
lola: result: no
lola: produced by: LTL model checker
lola: The net does not satisfy the given formula (language of the product automaton is nonempty).
lola: 167988 markings, 254228 edges
lola: ========================================
lola: SUBRESULT
lola: result: no
lola: The Boolean predicate is false.
lola: ========================================

FORMULA ClientsAndServers-PT-N0020P3-LTLFireability-1 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT
lola: ========================================
lola: ...considering subproblem: A (X ((F (FIREABLE(ssG)) U X (FIREABLE(crA)))))
lola: ========================================
lola: SUBTASK
lola: checking LTL
lola: transforming LTL-Formula into a Büchi-Automaton
lola: processed formula: A (X ((F (FIREABLE(ssG)) U X (FIREABLE(crA)))))
lola: processed formula length: 47
lola: 23 rewrites
lola: closed formula file ClientsAndServers-PT-N0020P3-LTLFireability.task
lola: the resulting Büchi automaton has 5 states
lola: STORE
lola: using a simple compression encoder (--encoder=simplecompressed)
lola: using a prefix tree store (--store=prefix)
lola: Formula contains X operator; stubborn sets not applicable
lola: SEARCH
lola: RUNNING
lola: 1958806 markings, 5306513 edges, 391761 markings/sec, 0 secs
lola: 3582276 markings, 10580282 edges, 324694 markings/sec, 5 secs
lola: 5063686 markings, 15652094 edges, 296282 markings/sec, 10 secs
lola: 6600657 markings, 20626236 edges, 307394 markings/sec, 15 secs
lola: 8083604 markings, 25679641 edges, 296589 markings/sec, 20 secs
lola: 9542583 markings, 30692121 edges, 291796 markings/sec, 25 secs
lola: 11094656 markings, 35712434 edges, 310415 markings/sec, 30 secs
lola: 12580708 markings, 40772175 edges, 297210 markings/sec, 35 secs
lola: 14021851 markings, 45738186 edges, 288229 markings/sec, 40 secs
lola: 15574718 markings, 50738262 edges, 310573 markings/sec, 45 secs
lola: 17039389 markings, 55740581 edges, 292934 markings/sec, 50 secs
lola: 18448642 markings, 60615702 edges, 281851 markings/sec, 55 secs
lola: 20015572 markings, 65645977 edges, 313386 markings/sec, 60 secs
lola: 21468744 markings, 70618549 edges, 290634 markings/sec, 65 secs
lola: 22952908 markings, 75461121 edges, 296833 markings/sec, 70 secs
lola: 24440199 markings, 80500875 edges, 297458 markings/sec, 75 secs
lola: 25691239 markings, 84838389 edges, 250208 markings/sec, 80 secs
lola: 27008286 markings, 89089584 edges, 263409 markings/sec, 85 secs
lola: 28450344 markings, 94018056 edges, 288412 markings/sec, 90 secs
lola: 29906942 markings, 98846083 edges, 291320 markings/sec, 95 secs
lola: 31376576 markings, 103757230 edges, 293927 markings/sec, 100 secs
lola: 32799454 markings, 108639112 edges, 284576 markings/sec, 105 secs
lola: 34313063 markings, 113543588 edges, 302722 markings/sec, 110 secs
lola: 35782340 markings, 118551186 edges, 293855 markings/sec, 115 secs
lola: 37171343 markings, 123341332 edges, 277801 markings/sec, 120 secs
lola: 38669190 markings, 128171374 edges, 299569 markings/sec, 125 secs
lola: 40050716 markings, 132907444 edges, 276305 markings/sec, 130 secs
lola: 41440787 markings, 137507073 edges, 278014 markings/sec, 135 secs
lola: 42891799 markings, 142368438 edges, 290202 markings/sec, 140 secs
lola: 44254643 markings, 147061483 edges, 272569 markings/sec, 145 secs
lola: 45697784 markings, 151734216 edges, 288628 markings/sec, 150 secs
lola: 47086561 markings, 156483281 edges, 277755 markings/sec, 155 secs
lola: 48424076 markings, 161060889 edges, 267503 markings/sec, 160 secs
lola: 49928354 markings, 165957469 edges, 300856 markings/sec, 165 secs
lola: 51349370 markings, 170822397 edges, 284203 markings/sec, 170 secs
lola: 52877613 markings, 175787823 edges, 305649 markings/sec, 175 secs
lola: 54366268 markings, 180855762 edges, 297731 markings/sec, 180 secs
lola: 55825873 markings, 185855176 edges, 291921 markings/sec, 185 secs
lola: 57359520 markings, 190818260 edges, 306729 markings/sec, 190 secs
lola: 58828356 markings, 195834683 edges, 293767 markings/sec, 195 secs
lola: 60272091 markings, 200794149 edges, 288747 markings/sec, 200 secs
lola: 61839118 markings, 205855360 edges, 313405 markings/sec, 205 secs
lola: 63317265 markings, 210893093 edges, 295629 markings/sec, 210 secs
lola: 64748786 markings, 215833196 edges, 286304 markings/sec, 215 secs
lola: 66312026 markings, 220865882 edges, 312648 markings/sec, 220 secs
lola: 67776432 markings, 225868999 edges, 292881 markings/sec, 225 secs
lola: 69197327 markings, 230720716 edges, 284179 markings/sec, 230 secs
lola: 70773775 markings, 235835838 edges, 315290 markings/sec, 235 secs
lola: 72257345 markings, 240908961 edges, 296714 markings/sec, 240 secs
lola: 73769310 markings, 245948436 edges, 302393 markings/sec, 245 secs
lola: 75320386 markings, 251095633 edges, 310215 markings/sec, 250 secs
lola: 76816299 markings, 256199379 edges, 299183 markings/sec, 255 secs
lola: 78342259 markings, 261184944 edges, 305192 markings/sec, 260 secs
lola: 79866958 markings, 266341449 edges, 304940 markings/sec, 265 secs
lola: 81347782 markings, 271405681 edges, 296165 markings/sec, 270 secs
lola: 82864150 markings, 276330306 edges, 303274 markings/sec, 275 secs
lola: 84355628 markings, 281408700 edges, 298296 markings/sec, 280 secs
lola: 85821614 markings, 286429592 edges, 293197 markings/sec, 285 secs
lola: 87357911 markings, 291401507 edges, 307259 markings/sec, 290 secs
lola: 88855136 markings, 296501932 edges, 299445 markings/sec, 295 secs
lola: 90328553 markings, 301561900 edges, 294683 markings/sec, 300 secs
lola: 91880318 markings, 306581742 edges, 310353 markings/sec, 305 secs
lola: 93370183 markings, 311653349 edges, 297973 markings/sec, 310 secs
lola: 94819492 markings, 316641731 edges, 289862 markings/sec, 315 secs
lola: 96368471 markings, 321633321 edges, 309796 markings/sec, 320 secs
lola: 97847372 markings, 326681768 edges, 295780 markings/sec, 325 secs
lola: 99296143 markings, 331687419 edges, 289754 markings/sec, 330 secs
lola: 100861121 markings, 336714086 edges, 312996 markings/sec, 335 secs
lola: 102333302 markings, 341739099 edges, 294436 markings/sec, 340 secs
lola: 103797227 markings, 346692498 edges, 292785 markings/sec, 345 secs
lola: 105351746 markings, 351778387 edges, 310904 markings/sec, 350 secs
lola: 106840921 markings, 356867851 edges, 297835 markings/sec, 355 secs
lola: 108374278 markings, 361950475 edges, 306671 markings/sec, 360 secs
lola: 109928923 markings, 367136041 edges, 310929 markings/sec, 365 secs
lola: 111402517 markings, 372173676 edges, 294719 markings/sec, 370 secs
lola: 112887580 markings, 376997144 edges, 297013 markings/sec, 375 secs
lola: 114349833 markings, 381977757 edges, 292451 markings/sec, 380 secs
lola: 115690923 markings, 386602491 edges, 268218 markings/sec, 385 secs
lola: 116093078 markings, 387888107 edges, 80431 markings/sec, 390 secs
lola: 116101833 markings, 387916987 edges, 1751 markings/sec, 395 secs
lola: 116107346 markings, 387935578 edges, 1103 markings/sec, 400 secs
lola: 116127835 markings, 388003538 edges, 4098 markings/sec, 405 secs
lola: 116129371 markings, 388008716 edges, 307 markings/sec, 410 secs
lola: 116133363 markings, 388020048 edges, 798 markings/sec, 415 secs
lola: 116139967 markings, 388039142 edges, 1321 markings/sec, 420 secs
lola: 116169359 markings, 388131470 edges, 5878 markings/sec, 425 secs
lola: 116173105 markings, 388143630 edges, 749 markings/sec, 430 secs
lola: 116180805 markings, 388168979 edges, 1540 markings/sec, 435 secs
lola: Child process aborted or communication problem between parent and child process

FORMULA ClientsAndServers-PT-N0020P3-LTLFireability-5 CANNOT_COMPUTE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT
lola: RESULT
lola:
SUMMARY: yes no no no no unknown no no no no no no no no no no
lola:
preliminary result: yes no no no no unknown no no no no no no no no no no
lola: memory consumption: 13332 KB
lola: time consumption: 940 seconds

BK_STOP 1552324855987

--------------------
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="ClientsAndServers-PT-N0020P3"
export BK_EXAMINATION="LTLFireability"
export BK_TOOL="win2018"
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 2-3957"
echo " Executing tool win2018"
echo " Input is ClientsAndServers-PT-N0020P3, 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 r033-smll-155225133700111"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/ClientsAndServers-PT-N0020P3.tgz
mv ClientsAndServers-PT-N0020P3 execution
cd execution
if [ "LTLFireability" = "GlobalProperties" ] ; then
rm -f GenericPropertiesVerdict.xml
fi
if [ "LTLFireability" = "UpperBounds" ] ; 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.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property LTLFireability.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -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
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 ;