Execution Chart

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

Trace from the execution

Formatting '/data/fkordon/mcc2022-input.r222-tall-165286024600011.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2022-input.qcow2 cluster_size=65536 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
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=====================================================================
Generated by BenchKit 2-4028
Executing tool itstools
Input is ShieldIIPs-PT-001B, examination is LTLCardinality
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r222-tall-165286024600011
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 288K
-rw-r--r-- 1 mcc users 9.0K Apr 29 15:01 CTLCardinality.txt
-rw-r--r-- 1 mcc users 109K Apr 29 15:01 CTLCardinality.xml
-rw-r--r-- 1 mcc users 4.9K Apr 29 14:59 CTLFireability.txt
-rw-r--r-- 1 mcc users 45K Apr 29 14:59 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K May 10 09:34 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.5K May 10 09:34 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 3.7K May 9 08:47 LTLCardinality.txt
-rw-r--r-- 1 mcc users 26K May 9 08:47 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.0K May 9 08:47 LTLFireability.txt
-rw-r--r-- 1 mcc users 15K May 9 08:47 LTLFireability.xml
-rw-r--r-- 1 mcc users 1.6K May 9 08:47 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K May 9 08:47 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 May 10 09:34 equiv_col
-rw-r--r-- 1 mcc users 5 May 10 09:34 instance
-rw-r--r-- 1 mcc users 6 May 10 09:34 iscolored
-rw-r--r-- 1 mcc users 17K May 10 09:34 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 ShieldIIPs-PT-001B-LTLCardinality-00
FORMULA_NAME ShieldIIPs-PT-001B-LTLCardinality-01
FORMULA_NAME ShieldIIPs-PT-001B-LTLCardinality-02
FORMULA_NAME ShieldIIPs-PT-001B-LTLCardinality-03
FORMULA_NAME ShieldIIPs-PT-001B-LTLCardinality-04
FORMULA_NAME ShieldIIPs-PT-001B-LTLCardinality-05
FORMULA_NAME ShieldIIPs-PT-001B-LTLCardinality-06
FORMULA_NAME ShieldIIPs-PT-001B-LTLCardinality-07
FORMULA_NAME ShieldIIPs-PT-001B-LTLCardinality-08
FORMULA_NAME ShieldIIPs-PT-001B-LTLCardinality-09
FORMULA_NAME ShieldIIPs-PT-001B-LTLCardinality-10
FORMULA_NAME ShieldIIPs-PT-001B-LTLCardinality-11
FORMULA_NAME ShieldIIPs-PT-001B-LTLCardinality-12
FORMULA_NAME ShieldIIPs-PT-001B-LTLCardinality-13
FORMULA_NAME ShieldIIPs-PT-001B-LTLCardinality-14
FORMULA_NAME ShieldIIPs-PT-001B-LTLCardinality-15

=== Now, execution of the tool begins

BK_START 1652908265821

Running Version 202205111006
[2022-05-18 21:11:07] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, LTLCardinality, -spotpath, /home/mcc/BenchKit/bin//..//ltlfilt, -z3path, /home/mcc/BenchKit/bin//..//z3/bin/z3, -yices2path, /home/mcc/BenchKit/bin//..//yices/bin/yices, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2022-05-18 21:11:07] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2022-05-18 21:11:07] [INFO ] Load time of PNML (sax parser for PT used): 57 ms
[2022-05-18 21:11:07] [INFO ] Transformed 63 places.
[2022-05-18 21:11:07] [INFO ] Transformed 62 transitions.
[2022-05-18 21:11:07] [INFO ] Found NUPN structural information;
[2022-05-18 21:11:07] [INFO ] Parsed PT model containing 63 places and 62 transitions in 151 ms.
Parsed 16 properties from file /home/mcc/execution/LTLCardinality.xml in 11 ms.
Working with output stream class java.io.PrintStream
Initial state reduction rules removed 2 formulas.
FORMULA ShieldIIPs-PT-001B-LTLCardinality-01 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA ShieldIIPs-PT-001B-LTLCardinality-02 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA ShieldIIPs-PT-001B-LTLCardinality-03 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA ShieldIIPs-PT-001B-LTLCardinality-04 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA ShieldIIPs-PT-001B-LTLCardinality-15 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA ShieldIIPs-PT-001B-LTLCardinality-05 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA ShieldIIPs-PT-001B-LTLCardinality-10 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Support contains 25 out of 63 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 63/63 places, 62/62 transitions.
Discarding 3 places :
Symmetric choice reduction at 0 with 3 rule applications. Total rules 3 place count 60 transition count 59
Iterating global reduction 0 with 3 rules applied. Total rules applied 6 place count 60 transition count 59
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 7 place count 59 transition count 58
Iterating global reduction 0 with 1 rules applied. Total rules applied 8 place count 59 transition count 58
Applied a total of 8 rules in 23 ms. Remains 59 /63 variables (removed 4) and now considering 58/62 (removed 4) transitions.
// Phase 1: matrix 58 rows 59 cols
[2022-05-18 21:11:07] [INFO ] Computed 10 place invariants in 7 ms
[2022-05-18 21:11:07] [INFO ] Implicit Places using invariants in 121 ms returned []
// Phase 1: matrix 58 rows 59 cols
[2022-05-18 21:11:07] [INFO ] Computed 10 place invariants in 4 ms
[2022-05-18 21:11:07] [INFO ] Implicit Places using invariants and state equation in 79 ms returned []
Implicit Place search using SMT with State Equation took 224 ms to find 0 implicit places.
// Phase 1: matrix 58 rows 59 cols
[2022-05-18 21:11:07] [INFO ] Computed 10 place invariants in 3 ms
[2022-05-18 21:11:07] [INFO ] Dead Transitions using invariants and state equation in 45 ms found 0 transitions.
Starting structural reductions in LTL mode, iteration 1 : 59/63 places, 58/62 transitions.
Finished structural reductions, in 1 iterations. Remains : 59/63 places, 58/62 transitions.
Support contains 25 out of 59 places after structural reductions.
[2022-05-18 21:11:07] [INFO ] Flatten gal took : 22 ms
[2022-05-18 21:11:07] [INFO ] Flatten gal took : 9 ms
[2022-05-18 21:11:07] [INFO ] Input system was already deterministic with 58 transitions.
Support contains 24 out of 59 places (down from 25) after GAL structural reductions.
Finished random walk after 252 steps, including 0 resets, run visited all 17 properties in 43 ms. (steps per millisecond=5 )
FORMULA ShieldIIPs-PT-001B-LTLCardinality-14 FALSE TECHNIQUES REACHABILITY_KNOWLEDGE
FORMULA ShieldIIPs-PT-001B-LTLCardinality-08 FALSE TECHNIQUES REACHABILITY_KNOWLEDGE
FORMULA ShieldIIPs-PT-001B-LTLCardinality-11 FALSE TECHNIQUES REACHABILITY_KNOWLEDGE
Computed a total of 13 stabilizing places and 13 stable transitions
Running Spot : cd /home/mcc/execution;'/home/mcc/BenchKit/bin//..//ltl2tgba' '--check=stutter' '--hoaf=tv' '-f' '!(X(F((F(p0)&&p1))))'
Support contains 3 out of 59 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 59/59 places, 58/58 transitions.
Discarding 4 places :
Symmetric choice reduction at 0 with 4 rule applications. Total rules 4 place count 55 transition count 54
Iterating global reduction 0 with 4 rules applied. Total rules applied 8 place count 55 transition count 54
Applied a total of 8 rules in 3 ms. Remains 55 /59 variables (removed 4) and now considering 54/58 (removed 4) transitions.
// Phase 1: matrix 54 rows 55 cols
[2022-05-18 21:11:08] [INFO ] Computed 10 place invariants in 1 ms
[2022-05-18 21:11:08] [INFO ] Implicit Places using invariants in 33 ms returned []
// Phase 1: matrix 54 rows 55 cols
[2022-05-18 21:11:08] [INFO ] Computed 10 place invariants in 1 ms
[2022-05-18 21:11:08] [INFO ] Implicit Places using invariants and state equation in 69 ms returned []
Implicit Place search using SMT with State Equation took 104 ms to find 0 implicit places.
// Phase 1: matrix 54 rows 55 cols
[2022-05-18 21:11:08] [INFO ] Computed 10 place invariants in 2 ms
[2022-05-18 21:11:08] [INFO ] Dead Transitions using invariants and state equation in 44 ms found 0 transitions.
Starting structural reductions in LTL mode, iteration 1 : 55/59 places, 54/58 transitions.
Finished structural reductions, in 1 iterations. Remains : 55/59 places, 54/58 transitions.
Stuttering acceptance computed with spot in 252 ms :[(OR (NOT p1) (NOT p0)), (NOT p0), (OR (NOT p1) (NOT p0))]
Running random walk in product with property : ShieldIIPs-PT-001B-LTLCardinality-00 automaton TGBA Formula[mat=[[{ cond=true, acceptance={} source=0 dest: 2}], [{ cond=(NOT p0), acceptance={0} source=1 dest: 1}], [{ cond=(AND p1 (NOT p0)), acceptance={0} source=2 dest: 1}, { cond=(NOT p1), acceptance={0} source=2 dest: 2}]], initial=0, aps=[p0:(AND (EQ s3 0) (EQ s2 1)), p1:(OR (EQ s3 0) (EQ s43 1))], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, deterministic, no-univ-branch, unambiguous, semi-deterministic, stutter-sensitive, very-weak, weak, inherently-weak], stateDesc=[null, null, null][false, false, false]]
Product exploration explored 100000 steps with 3216 reset in 213 ms.
Product exploration explored 100000 steps with 3204 reset in 129 ms.
Computed a total of 11 stabilizing places and 11 stable transitions
Computed a total of 11 stabilizing places and 11 stable transitions
Knowledge obtained : [(AND (NOT p0) p1), (X (AND p1 (NOT p0))), (X p1), (X (X (NOT p0))), (X (X (AND p1 (NOT p0)))), (X (X p1))]
False Knowledge obtained : []
Knowledge sufficient to adopt a stutter insensitive property.
Knowledge based reduction with 6 factoid took 249 ms. Reduced automaton from 3 states, 4 edges and 2 AP to 2 states, 2 edges and 1 AP.
Stuttering acceptance computed with spot in 71 ms :[(NOT p0), (NOT p0)]
Finished random walk after 32 steps, including 0 resets, run visited all 1 properties in 2 ms. (steps per millisecond=16 )
Knowledge obtained : [(AND (NOT p0) p1), (X (AND p1 (NOT p0))), (X p1), (X (X (NOT p0))), (X (X (AND p1 (NOT p0)))), (X (X p1))]
False Knowledge obtained : [(F p0)]
Knowledge based reduction with 6 factoid took 324 ms. Reduced automaton from 2 states, 2 edges and 1 AP to 1 states, 1 edges and 1 AP.
Stuttering acceptance computed with spot in 43 ms :[(NOT p0)]
Stuttering acceptance computed with spot in 35 ms :[(NOT p0)]
// Phase 1: matrix 54 rows 55 cols
[2022-05-18 21:11:09] [INFO ] Computed 10 place invariants in 1 ms
[2022-05-18 21:11:09] [INFO ] [Real]Absence check using 10 positive place invariants in 2 ms returned sat
[2022-05-18 21:11:09] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2022-05-18 21:11:09] [INFO ] [Real]Absence check using state equation in 16 ms returned sat
[2022-05-18 21:11:09] [INFO ] Solution in real domain found non-integer solution.
[2022-05-18 21:11:09] [INFO ] [Nat]Absence check using 10 positive place invariants in 2 ms returned sat
[2022-05-18 21:11:09] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2022-05-18 21:11:09] [INFO ] [Nat]Absence check using state equation in 17 ms returned sat
[2022-05-18 21:11:09] [INFO ] Computed and/alt/rep : 53/119/53 causal constraints (skipped 0 transitions) in 4 ms.
[2022-05-18 21:11:09] [INFO ] Added : 53 causal constraints over 12 iterations in 102 ms. Result :sat
Could not prove EG (NOT p0)
Support contains 2 out of 55 places. Attempting structural reductions.
Property had overlarge support with respect to TGBA, discarding it for now.
Starting structural reductions in SI_LTL mode, iteration 0 : 55/55 places, 54/54 transitions.
Reduce places removed 1 places and 1 transitions.
Drop transitions removed 6 transitions
Trivial Post-agglo rules discarded 6 transitions
Performed 6 trivial Post agglomeration. Transition count delta: 6
Iterating post reduction 0 with 6 rules applied. Total rules applied 6 place count 54 transition count 47
Reduce places removed 6 places and 0 transitions.
Iterating post reduction 1 with 6 rules applied. Total rules applied 12 place count 48 transition count 47
Performed 6 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 6 Pre rules applied. Total rules applied 12 place count 48 transition count 41
Deduced a syphon composed of 6 places in 0 ms
Reduce places removed 6 places and 0 transitions.
Iterating global reduction 2 with 12 rules applied. Total rules applied 24 place count 42 transition count 41
Performed 15 Post agglomeration using F-continuation condition.Transition count delta: 15
Deduced a syphon composed of 15 places in 1 ms
Reduce places removed 15 places and 0 transitions.
Iterating global reduction 2 with 30 rules applied. Total rules applied 54 place count 27 transition count 26
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 2 with 1 rules applied. Total rules applied 55 place count 26 transition count 25
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 2 with 1 rules applied. Total rules applied 56 place count 25 transition count 25
Applied a total of 56 rules in 13 ms. Remains 25 /55 variables (removed 30) and now considering 25/54 (removed 29) transitions.
// Phase 1: matrix 25 rows 25 cols
[2022-05-18 21:11:09] [INFO ] Computed 9 place invariants in 0 ms
[2022-05-18 21:11:09] [INFO ] Implicit Places using invariants in 28 ms returned []
// Phase 1: matrix 25 rows 25 cols
[2022-05-18 21:11:09] [INFO ] Computed 9 place invariants in 0 ms
[2022-05-18 21:11:09] [INFO ] Implicit Places using invariants and state equation in 40 ms returned []
Implicit Place search using SMT with State Equation took 69 ms to find 0 implicit places.
[2022-05-18 21:11:09] [INFO ] Redundant transitions in 11 ms returned [24]
Found 1 redundant transitions using SMT.
Drop transitions removed 1 transitions
Redundant transitions reduction (with SMT) removed 1 transitions.
// Phase 1: matrix 24 rows 25 cols
[2022-05-18 21:11:09] [INFO ] Computed 9 place invariants in 5 ms
[2022-05-18 21:11:09] [INFO ] Dead Transitions using invariants and state equation in 36 ms found 0 transitions.
Starting structural reductions in SI_LTL mode, iteration 1 : 25/55 places, 24/54 transitions.
Applied a total of 0 rules in 1 ms. Remains 25 /25 variables (removed 0) and now considering 24/24 (removed 0) transitions.
Finished structural reductions, in 2 iterations. Remains : 25/55 places, 24/54 transitions.
Computed a total of 0 stabilizing places and 0 stable transitions
Computed a total of 0 stabilizing places and 0 stable transitions
Knowledge obtained : [(NOT p0), (X (NOT p0)), (X (X (NOT p0)))]
False Knowledge obtained : []
Knowledge based reduction with 3 factoid took 98 ms. Reduced automaton from 1 states, 1 edges and 1 AP to 1 states, 1 edges and 1 AP.
Stuttering acceptance computed with spot in 35 ms :[(NOT p0)]
Finished random walk after 11 steps, including 0 resets, run visited all 1 properties in 2 ms. (steps per millisecond=5 )
Knowledge obtained : [(NOT p0), (X (NOT p0)), (X (X (NOT p0)))]
False Knowledge obtained : [(F p0)]
Knowledge based reduction with 3 factoid took 98 ms. Reduced automaton from 1 states, 1 edges and 1 AP to 1 states, 1 edges and 1 AP.
Stuttering acceptance computed with spot in 26 ms :[(NOT p0)]
Stuttering acceptance computed with spot in 36 ms :[(NOT p0)]
// Phase 1: matrix 24 rows 25 cols
[2022-05-18 21:11:10] [INFO ] Computed 9 place invariants in 1 ms
[2022-05-18 21:11:10] [INFO ] [Real]Absence check using 9 positive place invariants in 1 ms returned sat
[2022-05-18 21:11:10] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2022-05-18 21:11:10] [INFO ] [Real]Absence check using state equation in 7 ms returned sat
[2022-05-18 21:11:10] [INFO ] Solution in real domain found non-integer solution.
[2022-05-18 21:11:10] [INFO ] [Nat]Absence check using 9 positive place invariants in 1 ms returned sat
[2022-05-18 21:11:10] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2022-05-18 21:11:10] [INFO ] [Nat]Absence check using state equation in 7 ms returned sat
[2022-05-18 21:11:10] [INFO ] Computed and/alt/rep : 23/48/23 causal constraints (skipped 0 transitions) in 2 ms.
[2022-05-18 21:11:10] [INFO ] Added : 23 causal constraints over 5 iterations in 23 ms. Result :sat
Could not prove EG (NOT p0)
Stuttering acceptance computed with spot in 26 ms :[(NOT p0)]
Product exploration explored 100000 steps with 11451 reset in 221 ms.
Product exploration explored 100000 steps with 11476 reset in 147 ms.
Built C files in :
/tmp/ltsmin15329644383958594270
[2022-05-18 21:11:10] [INFO ] Computing symmetric may disable matrix : 24 transitions.
[2022-05-18 21:11:10] [INFO ] Computation of Complete disable matrix. took 1 ms. Total solver calls (SAT/UNSAT): 0(0/0)
[2022-05-18 21:11:10] [INFO ] Computing symmetric may enable matrix : 24 transitions.
[2022-05-18 21:11:10] [INFO ] Computation of Complete enable matrix. took 1 ms. Total solver calls (SAT/UNSAT): 0(0/0)
[2022-05-18 21:11:10] [INFO ] Computing Do-Not-Accords matrix : 24 transitions.
[2022-05-18 21:11:10] [INFO ] Computation of Completed DNA matrix. took 0 ms. Total solver calls (SAT/UNSAT): 0(0/0)
[2022-05-18 21:11:10] [INFO ] Built C files in 12ms conformant to PINS (ltsmin variant)in folder :/tmp/ltsmin15329644383958594270
Running compilation step : cd /tmp/ltsmin15329644383958594270;'/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.ltsmin.binaries_1.0.0.202205111006/bin/limit_time.pl' '3' 'gcc' '-c' '-I/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.ltsmin.binaries_1.0.0.202205111006/bin/include/' '-I.' '-std=c99' '-fPIC' '-O0' 'model.c'
Compilation finished in 183 ms.
Running link step : cd /tmp/ltsmin15329644383958594270;'gcc' '-shared' '-o' 'gal.so' 'model.o'
Link finished in 35 ms.
Running LTSmin : cd /tmp/ltsmin15329644383958594270;'/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.ltsmin.binaries_1.0.0.202205111006/bin/pins2lts-mc-linux64' './gal.so' '--threads=8' '-p' '--pins-guards' '--when' '--hoa' '/tmp/stateBased5168338565843109265.hoa' '--buchi-type=spotba'
LTSmin run took 72 ms.
FORMULA ShieldIIPs-PT-001B-LTLCardinality-00 TRUE TECHNIQUES PARTIAL_ORDER EXPLICIT LTSMIN SAT_SMT
Treatment of property ShieldIIPs-PT-001B-LTLCardinality-00 finished in 3087 ms.
Running Spot : cd /home/mcc/execution;'/home/mcc/BenchKit/bin//..//ltl2tgba' '--check=stutter' '--hoaf=tv' '-f' '!(G(X(p0)))'
Support contains 4 out of 59 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 59/59 places, 58/58 transitions.
Discarding 4 places :
Symmetric choice reduction at 0 with 4 rule applications. Total rules 4 place count 55 transition count 54
Iterating global reduction 0 with 4 rules applied. Total rules applied 8 place count 55 transition count 54
Applied a total of 8 rules in 5 ms. Remains 55 /59 variables (removed 4) and now considering 54/58 (removed 4) transitions.
// Phase 1: matrix 54 rows 55 cols
[2022-05-18 21:11:11] [INFO ] Computed 10 place invariants in 0 ms
[2022-05-18 21:11:11] [INFO ] Implicit Places using invariants in 36 ms returned []
// Phase 1: matrix 54 rows 55 cols
[2022-05-18 21:11:11] [INFO ] Computed 10 place invariants in 0 ms
[2022-05-18 21:11:11] [INFO ] Implicit Places using invariants and state equation in 47 ms returned []
Implicit Place search using SMT with State Equation took 85 ms to find 0 implicit places.
// Phase 1: matrix 54 rows 55 cols
[2022-05-18 21:11:11] [INFO ] Computed 10 place invariants in 0 ms
[2022-05-18 21:11:11] [INFO ] Dead Transitions using invariants and state equation in 40 ms found 0 transitions.
Starting structural reductions in LTL mode, iteration 1 : 55/59 places, 54/58 transitions.
Finished structural reductions, in 1 iterations. Remains : 55/59 places, 54/58 transitions.
Stuttering acceptance computed with spot in 90 ms :[true, (NOT p0), (NOT p0)]
Running random walk in product with property : ShieldIIPs-PT-001B-LTLCardinality-06 automaton TGBA Formula[mat=[[{ cond=true, acceptance={0} source=0 dest: 0}], [{ cond=true, acceptance={} source=1 dest: 2}], [{ cond=(NOT p0), acceptance={} source=2 dest: 0}, { cond=p0, acceptance={} source=2 dest: 2}]], initial=1, aps=[p0:(OR (EQ s42 0) (EQ s37 1) (EQ s48 0) (EQ s13 1))], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, complete, deterministic, no-univ-branch, unambiguous, semi-deterministic, stutter-sensitive, terminal, very-weak, weak, inherently-weak], stateDesc=[null, null, null][false, false, false]]
Entered a terminal (fully accepting) state of product in 132 steps with 0 reset in 0 ms.
FORMULA ShieldIIPs-PT-001B-LTLCardinality-06 FALSE TECHNIQUES STUTTER_TEST
Treatment of property ShieldIIPs-PT-001B-LTLCardinality-06 finished in 234 ms.
Running Spot : cd /home/mcc/execution;'/home/mcc/BenchKit/bin//..//ltl2tgba' '--check=stutter' '--hoaf=tv' '-f' '!(F(X(p0)))'
Support contains 2 out of 59 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 59/59 places, 58/58 transitions.
Discarding 4 places :
Symmetric choice reduction at 0 with 4 rule applications. Total rules 4 place count 55 transition count 54
Iterating global reduction 0 with 4 rules applied. Total rules applied 8 place count 55 transition count 54
Applied a total of 8 rules in 7 ms. Remains 55 /59 variables (removed 4) and now considering 54/58 (removed 4) transitions.
// Phase 1: matrix 54 rows 55 cols
[2022-05-18 21:11:11] [INFO ] Computed 10 place invariants in 1 ms
[2022-05-18 21:11:11] [INFO ] Implicit Places using invariants in 27 ms returned []
// Phase 1: matrix 54 rows 55 cols
[2022-05-18 21:11:11] [INFO ] Computed 10 place invariants in 1 ms
[2022-05-18 21:11:11] [INFO ] Implicit Places using invariants and state equation in 43 ms returned []
Implicit Place search using SMT with State Equation took 73 ms to find 0 implicit places.
// Phase 1: matrix 54 rows 55 cols
[2022-05-18 21:11:11] [INFO ] Computed 10 place invariants in 3 ms
[2022-05-18 21:11:11] [INFO ] Dead Transitions using invariants and state equation in 37 ms found 0 transitions.
Starting structural reductions in LTL mode, iteration 1 : 55/59 places, 54/58 transitions.
Finished structural reductions, in 1 iterations. Remains : 55/59 places, 54/58 transitions.
Stuttering acceptance computed with spot in 78 ms :[(NOT p0), (NOT p0)]
Running random walk in product with property : ShieldIIPs-PT-001B-LTLCardinality-07 automaton TGBA Formula[mat=[[{ cond=true, acceptance={} source=0 dest: 1}], [{ cond=(NOT p0), acceptance={0} source=1 dest: 1}]], initial=0, aps=[p0:(OR (EQ s3 0) (EQ s2 1))], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, deterministic, no-univ-branch, unambiguous, semi-deterministic, stutter-sensitive, very-weak, weak, inherently-weak], stateDesc=[null, null][false, false]]
Product exploration explored 100000 steps with 50000 reset in 73 ms.
Product exploration explored 100000 steps with 50000 reset in 83 ms.
Computed a total of 11 stabilizing places and 11 stable transitions
Computed a total of 11 stabilizing places and 11 stable transitions
Knowledge obtained : [p0, (X p0), (X (X p0))]
False Knowledge obtained : []
Property proved to be true thanks to knowledge :(X p0)
Knowledge based reduction with 3 factoid took 64 ms. Reduced automaton from 2 states, 2 edges and 1 AP to 1 states, 0 edges and 0 AP.
FORMULA ShieldIIPs-PT-001B-LTLCardinality-07 TRUE TECHNIQUES KNOWLEDGE
Treatment of property ShieldIIPs-PT-001B-LTLCardinality-07 finished in 430 ms.
Running Spot : cd /home/mcc/execution;'/home/mcc/BenchKit/bin//..//ltl2tgba' '--check=stutter' '--hoaf=tv' '-f' '!(G(X(F(G(p0)))))'
Support contains 1 out of 59 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 59/59 places, 58/58 transitions.
Reduce places removed 1 places and 1 transitions.
Drop transitions removed 6 transitions
Trivial Post-agglo rules discarded 6 transitions
Performed 6 trivial Post agglomeration. Transition count delta: 6
Iterating post reduction 0 with 6 rules applied. Total rules applied 6 place count 58 transition count 51
Reduce places removed 6 places and 0 transitions.
Iterating post reduction 1 with 6 rules applied. Total rules applied 12 place count 52 transition count 51
Performed 6 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 6 Pre rules applied. Total rules applied 12 place count 52 transition count 45
Deduced a syphon composed of 6 places in 1 ms
Reduce places removed 6 places and 0 transitions.
Iterating global reduction 2 with 12 rules applied. Total rules applied 24 place count 46 transition count 45
Discarding 4 places :
Symmetric choice reduction at 2 with 4 rule applications. Total rules 28 place count 42 transition count 41
Iterating global reduction 2 with 4 rules applied. Total rules applied 32 place count 42 transition count 41
Performed 2 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 2 Pre rules applied. Total rules applied 32 place count 42 transition count 39
Deduced a syphon composed of 2 places in 0 ms
Reduce places removed 2 places and 0 transitions.
Iterating global reduction 2 with 4 rules applied. Total rules applied 36 place count 40 transition count 39
Performed 13 Post agglomeration using F-continuation condition.Transition count delta: 13
Deduced a syphon composed of 13 places in 0 ms
Reduce places removed 13 places and 0 transitions.
Iterating global reduction 2 with 26 rules applied. Total rules applied 62 place count 27 transition count 26
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 2 with 1 rules applied. Total rules applied 63 place count 26 transition count 25
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 2 with 1 rules applied. Total rules applied 64 place count 25 transition count 25
Applied a total of 64 rules in 14 ms. Remains 25 /59 variables (removed 34) and now considering 25/58 (removed 33) transitions.
// Phase 1: matrix 25 rows 25 cols
[2022-05-18 21:11:11] [INFO ] Computed 9 place invariants in 0 ms
[2022-05-18 21:11:11] [INFO ] Implicit Places using invariants in 23 ms returned []
// Phase 1: matrix 25 rows 25 cols
[2022-05-18 21:11:11] [INFO ] Computed 9 place invariants in 1 ms
[2022-05-18 21:11:11] [INFO ] Implicit Places using invariants and state equation in 33 ms returned []
Implicit Place search using SMT with State Equation took 58 ms to find 0 implicit places.
[2022-05-18 21:11:11] [INFO ] Redundant transitions in 13 ms returned [24]
Found 1 redundant transitions using SMT.
Drop transitions removed 1 transitions
Redundant transitions reduction (with SMT) removed 1 transitions.
// Phase 1: matrix 24 rows 25 cols
[2022-05-18 21:11:11] [INFO ] Computed 9 place invariants in 0 ms
[2022-05-18 21:11:11] [INFO ] Dead Transitions using invariants and state equation in 28 ms found 0 transitions.
Starting structural reductions in SI_LTL mode, iteration 1 : 25/59 places, 24/58 transitions.
Applied a total of 0 rules in 2 ms. Remains 25 /25 variables (removed 0) and now considering 24/24 (removed 0) transitions.
Finished structural reductions, in 2 iterations. Remains : 25/59 places, 24/58 transitions.
Stuttering acceptance computed with spot in 32 ms :[(NOT p0)]
Running random walk in product with property : ShieldIIPs-PT-001B-LTLCardinality-09 automaton TGBA Formula[mat=[[{ cond=p0, acceptance={} source=0 dest: 0}, { cond=(NOT p0), acceptance={0} source=0 dest: 0}]], initial=0, aps=[p0:(EQ s5 1)], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, complete, deterministic, no-univ-branch, unambiguous, semi-deterministic, stutter-invariant], stateDesc=[null][true]]
Stuttering criterion allowed to conclude after 52 steps with 0 reset in 1 ms.
FORMULA ShieldIIPs-PT-001B-LTLCardinality-09 FALSE TECHNIQUES STUTTER_TEST
Treatment of property ShieldIIPs-PT-001B-LTLCardinality-09 finished in 169 ms.
Running Spot : cd /home/mcc/execution;'/home/mcc/BenchKit/bin//..//ltl2tgba' '--check=stutter' '--hoaf=tv' '-f' '!(G(((G(p0) U !F(p1))||p2)))'
Support contains 5 out of 59 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 59/59 places, 58/58 transitions.
Reduce places removed 1 places and 1 transitions.
Drop transitions removed 4 transitions
Trivial Post-agglo rules discarded 4 transitions
Performed 4 trivial Post agglomeration. Transition count delta: 4
Iterating post reduction 0 with 4 rules applied. Total rules applied 4 place count 58 transition count 53
Reduce places removed 4 places and 0 transitions.
Iterating post reduction 1 with 4 rules applied. Total rules applied 8 place count 54 transition count 53
Performed 6 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 6 Pre rules applied. Total rules applied 8 place count 54 transition count 47
Deduced a syphon composed of 6 places in 1 ms
Reduce places removed 6 places and 0 transitions.
Iterating global reduction 2 with 12 rules applied. Total rules applied 20 place count 48 transition count 47
Discarding 4 places :
Symmetric choice reduction at 2 with 4 rule applications. Total rules 24 place count 44 transition count 43
Iterating global reduction 2 with 4 rules applied. Total rules applied 28 place count 44 transition count 43
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 1 Pre rules applied. Total rules applied 28 place count 44 transition count 42
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 2 with 2 rules applied. Total rules applied 30 place count 43 transition count 42
Performed 13 Post agglomeration using F-continuation condition.Transition count delta: 13
Deduced a syphon composed of 13 places in 0 ms
Reduce places removed 13 places and 0 transitions.
Iterating global reduction 2 with 26 rules applied. Total rules applied 56 place count 30 transition count 29
Applied a total of 56 rules in 12 ms. Remains 30 /59 variables (removed 29) and now considering 29/58 (removed 29) transitions.
// Phase 1: matrix 29 rows 30 cols
[2022-05-18 21:11:11] [INFO ] Computed 10 place invariants in 0 ms
[2022-05-18 21:11:11] [INFO ] Implicit Places using invariants in 33 ms returned [14]
Discarding 1 places :
Implicit Place search using SMT only with invariants took 34 ms to find 1 implicit places.
Starting structural reductions in SI_LTL mode, iteration 1 : 29/59 places, 29/58 transitions.
Applied a total of 0 rules in 2 ms. Remains 29 /29 variables (removed 0) and now considering 29/29 (removed 0) transitions.
Finished structural reductions, in 2 iterations. Remains : 29/59 places, 29/58 transitions.
Stuttering acceptance computed with spot in 164 ms :[(AND p1 (NOT p2)), true, p1, (AND (NOT p1) (NOT p0)), p1]
Running random walk in product with property : ShieldIIPs-PT-001B-LTLCardinality-12 automaton TGBA Formula[mat=[[{ cond=p2, acceptance={} source=0 dest: 0}, { cond=(AND (NOT p2) p1 (NOT p0)), acceptance={} source=0 dest: 1}, { cond=(AND (NOT p2) (NOT p1) (NOT p0)), acceptance={} source=0 dest: 2}, { cond=(AND (NOT p2) p1 p0), acceptance={} source=0 dest: 3}, { cond=(AND (NOT p2) p0), acceptance={} source=0 dest: 4}], [{ cond=true, acceptance={0} source=1 dest: 1}], [{ cond=p1, acceptance={} source=2 dest: 1}, { cond=(NOT p1), acceptance={} source=2 dest: 2}], [{ cond=(AND (NOT p1) (NOT p0)), acceptance={} source=3 dest: 1}, { cond=(AND (NOT p1) p0), acceptance={} source=3 dest: 3}], [{ cond=(AND p1 (NOT p0)), acceptance={} source=4 dest: 1}, { cond=(AND (NOT p1) (NOT p0)), acceptance={} source=4 dest: 2}, { cond=(AND p1 p0), acceptance={} source=4 dest: 3}, { cond=(AND (NOT p1) p0), acceptance={} source=4 dest: 4}, { cond=(AND p1 p0), acceptance={0} source=4 dest: 4}]], initial=0, aps=[p2:(EQ s23 0), p1:(AND (NEQ s3 1) (OR (EQ s22 0) (EQ s24 1))), p0:(OR (EQ s12 0) (EQ s24 1))], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, no-univ-branch, stutter-invariant], stateDesc=[null, null, null, null, null][true, true, true, true, true]]
Entered a terminal (fully accepting) state of product in 1047 steps with 116 reset in 2 ms.
FORMULA ShieldIIPs-PT-001B-LTLCardinality-12 FALSE TECHNIQUES STUTTER_TEST
Treatment of property ShieldIIPs-PT-001B-LTLCardinality-12 finished in 228 ms.
Running Spot : cd /home/mcc/execution;'/home/mcc/BenchKit/bin//..//ltl2tgba' '--check=stutter' '--hoaf=tv' '-f' '!((F(X(p0))||(G((G(p2)||p1))&&F(p3))))'
Support contains 5 out of 59 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 59/59 places, 58/58 transitions.
Discarding 2 places :
Symmetric choice reduction at 0 with 2 rule applications. Total rules 2 place count 57 transition count 56
Iterating global reduction 0 with 2 rules applied. Total rules applied 4 place count 57 transition count 56
Applied a total of 4 rules in 6 ms. Remains 57 /59 variables (removed 2) and now considering 56/58 (removed 2) transitions.
// Phase 1: matrix 56 rows 57 cols
[2022-05-18 21:11:12] [INFO ] Computed 10 place invariants in 1 ms
[2022-05-18 21:11:12] [INFO ] Implicit Places using invariants in 40 ms returned []
// Phase 1: matrix 56 rows 57 cols
[2022-05-18 21:11:12] [INFO ] Computed 10 place invariants in 1 ms
[2022-05-18 21:11:12] [INFO ] Implicit Places using invariants and state equation in 54 ms returned []
Implicit Place search using SMT with State Equation took 98 ms to find 0 implicit places.
// Phase 1: matrix 56 rows 57 cols
[2022-05-18 21:11:12] [INFO ] Computed 10 place invariants in 1 ms
[2022-05-18 21:11:12] [INFO ] Dead Transitions using invariants and state equation in 38 ms found 0 transitions.
Starting structural reductions in LTL mode, iteration 1 : 57/59 places, 56/58 transitions.
Finished structural reductions, in 1 iterations. Remains : 57/59 places, 56/58 transitions.
Stuttering acceptance computed with spot in 192 ms :[(OR (AND (NOT p0) (NOT p1) (NOT p2)) (AND (NOT p0) (NOT p3))), (NOT p0), (AND (NOT p0) (NOT p2)), (AND (NOT p0) (NOT p2) (NOT p1)), (AND (NOT p3) (NOT p0))]
Running random walk in product with property : ShieldIIPs-PT-001B-LTLCardinality-13 automaton TGBA Formula[mat=[[{ cond=(AND (NOT p1) (NOT p2)), acceptance={} source=0 dest: 1}, { cond=(AND (NOT p1) p2), acceptance={} source=0 dest: 2}, { cond=p1, acceptance={} source=0 dest: 3}, { cond=(OR (AND p1 (NOT p3)) (AND p2 (NOT p3))), acceptance={} source=0 dest: 4}], [{ cond=(NOT p0), acceptance={0} source=1 dest: 1}], [{ cond=(AND (NOT p2) (NOT p0)), acceptance={} source=2 dest: 1}, { cond=(AND p2 (NOT p0)), acceptance={} source=2 dest: 2}], [{ cond=(AND (NOT p1) (NOT p2) (NOT p0)), acceptance={} source=3 dest: 1}, { cond=(AND (NOT p1) p2 (NOT p0)), acceptance={} source=3 dest: 2}, { cond=(AND p1 (NOT p0)), acceptance={} source=3 dest: 3}], [{ cond=(AND (NOT p3) (NOT p0)), acceptance={0} source=4 dest: 4}]], initial=0, aps=[p1:(OR (EQ s32 0) (EQ s10 1)), p2:(AND (EQ s10 0) (EQ s32 1)), p3:(AND (EQ s46 0) (EQ s43 1)), p0:(EQ s39 0)], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, no-univ-branch, stutter-sensitive, very-weak, weak, inherently-weak], stateDesc=[null, null, null, null, null][false, false, false, false, false]]
Product exploration explored 100000 steps with 50000 reset in 77 ms.
Product exploration explored 100000 steps with 50000 reset in 82 ms.
Computed a total of 12 stabilizing places and 12 stable transitions
Computed a total of 12 stabilizing places and 12 stable transitions
Knowledge obtained : [(AND p1 (NOT p2) (NOT p3) p0), (X (NOT (AND (NOT p2) (NOT p0)))), (X p0), (X (NOT (AND (NOT p1) p2 (NOT p0)))), (X (NOT (AND p1 (NOT p0)))), (X (NOT (AND (NOT p3) (NOT p0)))), (X (NOT (AND p2 (NOT p0)))), (X (NOT (AND (NOT p1) (NOT p2) (NOT p0)))), (X (X (NOT (AND (NOT p2) (NOT p0))))), (X (X p0)), (X (X (NOT (AND (NOT p1) p2 (NOT p0))))), (X (X (NOT (AND p1 (NOT p0))))), (X (X (NOT (AND (NOT p3) (NOT p0))))), (X (X (NOT (AND p2 (NOT p0))))), (X (X (NOT (AND (NOT p1) (NOT p2) (NOT p0)))))]
False Knowledge obtained : []
Property proved to be true thanks to knowledge :(X p0)
Knowledge based reduction with 15 factoid took 260 ms. Reduced automaton from 5 states, 11 edges and 4 AP to 1 states, 0 edges and 0 AP.
FORMULA ShieldIIPs-PT-001B-LTLCardinality-13 TRUE TECHNIQUES KNOWLEDGE
Treatment of property ShieldIIPs-PT-001B-LTLCardinality-13 finished in 776 ms.
All properties solved by simple procedures.
Total runtime 5924 ms.

BK_STOP 1652908273016

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

+ export LANG=C
+ LANG=C
+ export BINDIR=/home/mcc/BenchKit/bin//../
+ BINDIR=/home/mcc/BenchKit/bin//../
++ pwd
+ export MODEL=/home/mcc/execution
+ MODEL=/home/mcc/execution
+ [[ LTLCardinality = StateSpace ]]
+ /home/mcc/BenchKit/bin//..//runeclipse.sh /home/mcc/execution LTLCardinality -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600
+ ulimit -s 65536
+ export PYTHONPATH=/usr/lib/python3.9/site-packages/
+ PYTHONPATH=/usr/lib/python3.9/site-packages/
+ export LD_LIBRARY_PATH=/usr/local/lib:
+ LD_LIBRARY_PATH=/usr/local/lib:
+ [[ -z '' ]]
+ export LTSMIN_MEM_SIZE=8589934592
+ LTSMIN_MEM_SIZE=8589934592
++ sed s/.jar//
++ perl -pe 's/.*\.//g'
++ ls /home/mcc/BenchKit/bin//..//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202205111006.jar
+ VERSION=202205111006
+ echo 'Running Version 202205111006'
+ /home/mcc/BenchKit/bin//..//itstools/its-tools -data @none -pnfolder /home/mcc/execution -examination LTLCardinality -spotpath /home/mcc/BenchKit/bin//..//ltlfilt -z3path /home/mcc/BenchKit/bin//..//z3/bin/z3 -yices2path /home/mcc/BenchKit/bin//..//yices/bin/yices -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600 -vmargs -Dosgi.locking=none -Declipse.stateSaveDelayInterval=-1 -Dosgi.configuration.area=@none -Xss128m -Xms40m -Xmx8192m

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="ShieldIIPs-PT-001B"
export BK_EXAMINATION="LTLCardinality"
export BK_TOOL="itstools"
export BK_RESULT_DIR="/tmp/BK_RESULTS/OUTPUTS"
export BK_TIME_CONFINEMENT="3600"
export BK_MEMORY_CONFINEMENT="16384"
export BK_BIN_PATH="/home/mcc/BenchKit/bin/"

# this is specific to your benchmark or test

export BIN_DIR="$HOME/BenchKit/bin"

# remove the execution directoty if it exists (to avoid increse of .vmdk images)
if [ -d execution ] ; then
rm -rf execution
fi

# this is for BenchKit: explicit launching of the test
echo "====================================================================="
echo " Generated by BenchKit 2-4028"
echo " Executing tool itstools"
echo " Input is ShieldIIPs-PT-001B, examination is LTLCardinality"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r222-tall-165286024600011"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/ShieldIIPs-PT-001B.tgz
mv ShieldIIPs-PT-001B execution
cd execution
if [ "LTLCardinality" = "ReachabilityDeadlock" ] || [ "LTLCardinality" = "UpperBounds" ] || [ "LTLCardinality" = "QuasiLiveness" ] || [ "LTLCardinality" = "StableMarking" ] || [ "LTLCardinality" = "Liveness" ] || [ "LTLCardinality" = "OneSafe" ] || [ "LTLCardinality" = "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 [ "LTLCardinality" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "LTLCardinality" != "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 "LTLCardinality.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property LTLCardinality.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "LTLCardinality.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 '' LTLCardinality.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "LTLCardinality" = "ReachabilityDeadlock" ] || [ "LTLCardinality" = "QuasiLiveness" ] || [ "LTLCardinality" = "StableMarking" ] || [ "LTLCardinality" = "Liveness" ] || [ "LTLCardinality" = "OneSafe" ] ; then
echo "FORMULA_NAME LTLCardinality"
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 ;