Execution Chart

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

Trace from the execution

Formatting '/mnt/tpsp/fkordon/mcc2023-input.r421-tajo-167905974900196.qcow2', fmt=qcow2 size=4294967296 backing_file='/mnt/tpsp/fkordon/mcc2023-input.qcow2' encryption=off cluster_size=65536 lazy_refcounts=off
Waiting for the VM to be ready (probing ssh)
.........................................................................................................................
=====================================================================
Generated by BenchKit 2-5348
Executing tool itstools
Input is ShieldRVt-PT-002A, examination is LTLFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r421-tajo-167905974900196
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 436K
-rw-r--r-- 1 mcc users 7.2K Feb 25 23:01 CTLCardinality.txt
-rw-r--r-- 1 mcc users 80K Feb 25 23:01 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.0K Feb 25 23:01 CTLFireability.txt
-rw-r--r-- 1 mcc users 45K Feb 25 23:01 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Jan 29 11:41 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.6K Jan 29 11:41 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 3.3K Feb 25 17:03 LTLCardinality.txt
-rw-r--r-- 1 mcc users 23K Feb 25 17:03 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.2K Feb 25 17:03 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K Feb 25 17:03 LTLFireability.xml
-rw-r--r-- 1 mcc users 9.8K Feb 25 23:02 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 107K Feb 25 23:02 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 7.5K Feb 25 23:02 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 65K Feb 25 23:02 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K Feb 25 17:03 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.6K Feb 25 17:03 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 5 18:23 equiv_col
-rw-r--r-- 1 mcc users 5 Mar 5 18:23 instance
-rw-r--r-- 1 mcc users 6 Mar 5 18:23 iscolored
-rw-r--r-- 1 mcc users 6.2K Mar 5 18:23 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 ShieldRVt-PT-002A-LTLFireability-00
FORMULA_NAME ShieldRVt-PT-002A-LTLFireability-01
FORMULA_NAME ShieldRVt-PT-002A-LTLFireability-02
FORMULA_NAME ShieldRVt-PT-002A-LTLFireability-03
FORMULA_NAME ShieldRVt-PT-002A-LTLFireability-04
FORMULA_NAME ShieldRVt-PT-002A-LTLFireability-05
FORMULA_NAME ShieldRVt-PT-002A-LTLFireability-06
FORMULA_NAME ShieldRVt-PT-002A-LTLFireability-07
FORMULA_NAME ShieldRVt-PT-002A-LTLFireability-08
FORMULA_NAME ShieldRVt-PT-002A-LTLFireability-09
FORMULA_NAME ShieldRVt-PT-002A-LTLFireability-10
FORMULA_NAME ShieldRVt-PT-002A-LTLFireability-11
FORMULA_NAME ShieldRVt-PT-002A-LTLFireability-12
FORMULA_NAME ShieldRVt-PT-002A-LTLFireability-13
FORMULA_NAME ShieldRVt-PT-002A-LTLFireability-14
FORMULA_NAME ShieldRVt-PT-002A-LTLFireability-15

=== Now, execution of the tool begins

BK_START 1679170824846

bash -c /home/mcc/BenchKit/BenchKit_head.sh 2> STDERR ; echo ; echo -n "BK_STOP " ; date -u +%s%3N
Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=LTLFireability
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=ShieldRVt-PT-002A
Not applying reductions.
Model is PT
LTLFireability PT
Running Version 202303021504
[2023-03-18 20:20:26] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, LTLFireability, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2023-03-18 20:20:26] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2023-03-18 20:20:26] [INFO ] Load time of PNML (sax parser for PT used): 21 ms
[2023-03-18 20:20:26] [INFO ] Transformed 19 places.
[2023-03-18 20:20:26] [INFO ] Transformed 19 transitions.
[2023-03-18 20:20:26] [INFO ] Found NUPN structural information;
[2023-03-18 20:20:26] [INFO ] Parsed PT model containing 19 places and 19 transitions and 74 arcs in 81 ms.
Parsed 16 properties from file /home/mcc/execution/LTLFireability.xml in 8 ms.
Working with output stream class java.io.PrintStream
Initial state reduction rules removed 4 formulas.
Ensure Unique test removed 1 transitions
Reduce redundant transitions removed 1 transitions.
FORMULA ShieldRVt-PT-002A-LTLFireability-00 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA ShieldRVt-PT-002A-LTLFireability-06 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA ShieldRVt-PT-002A-LTLFireability-07 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA ShieldRVt-PT-002A-LTLFireability-13 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Initial state reduction rules removed 1 formulas.
FORMULA ShieldRVt-PT-002A-LTLFireability-10 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Support contains 18 out of 19 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 19/19 places, 18/18 transitions.
Applied a total of 0 rules in 8 ms. Remains 19 /19 variables (removed 0) and now considering 18/18 (removed 0) transitions.
// Phase 1: matrix 18 rows 19 cols
[2023-03-18 20:20:26] [INFO ] Computed 9 place invariants in 5 ms
[2023-03-18 20:20:26] [INFO ] Implicit Places using invariants in 116 ms returned []
[2023-03-18 20:20:26] [INFO ] Invariant cache hit.
[2023-03-18 20:20:26] [INFO ] Implicit Places using invariants and state equation in 38 ms returned []
Implicit Place search using SMT with State Equation took 185 ms to find 0 implicit places.
[2023-03-18 20:20:26] [INFO ] Invariant cache hit.
[2023-03-18 20:20:26] [INFO ] Dead Transitions using invariants and state equation in 33 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 230 ms. Remains : 19/19 places, 18/18 transitions.
Support contains 18 out of 19 places after structural reductions.
[2023-03-18 20:20:27] [INFO ] Flatten gal took : 15 ms
[2023-03-18 20:20:27] [INFO ] Flatten gal took : 4 ms
[2023-03-18 20:20:27] [INFO ] Input system was already deterministic with 18 transitions.
Finished random walk after 63 steps, including 0 resets, run visited all 22 properties in 18 ms. (steps per millisecond=3 )
Computed a total of 1 stabilizing places and 1 stable transitions
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202303021504/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X(X((G(p0)&&(X(F(p2))||F(p3)||p1)))))'
Support contains 5 out of 19 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 19/19 places, 18/18 transitions.
Applied a total of 0 rules in 0 ms. Remains 19 /19 variables (removed 0) and now considering 18/18 (removed 0) transitions.
[2023-03-18 20:20:27] [INFO ] Invariant cache hit.
[2023-03-18 20:20:27] [INFO ] Implicit Places using invariants in 27 ms returned []
[2023-03-18 20:20:27] [INFO ] Invariant cache hit.
[2023-03-18 20:20:27] [INFO ] Implicit Places using invariants and state equation in 37 ms returned []
Implicit Place search using SMT with State Equation took 65 ms to find 0 implicit places.
[2023-03-18 20:20:27] [INFO ] Invariant cache hit.
[2023-03-18 20:20:27] [INFO ] Dead Transitions using invariants and state equation in 26 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 93 ms. Remains : 19/19 places, 18/18 transitions.
Stuttering acceptance computed with spot in 376 ms :[(NOT p0), (OR (NOT p0) (AND (NOT p1) (NOT p2) (NOT p3))), (OR (NOT p0) (AND (NOT p2) (NOT p3))), (OR (NOT p0) (AND (NOT p1) (NOT p2) (NOT p3))), (OR (NOT p0) (AND (NOT p1) (NOT p2) (NOT p3))), true]
Running random walk in product with property : ShieldRVt-PT-002A-LTLFireability-01 automaton TGBA Formula[mat=[[{ cond=p0, acceptance={} source=0 dest: 0}, { cond=(NOT p0), acceptance={} source=0 dest: 5}], [{ cond=(OR (AND p0 p1) (AND p0 p3)), acceptance={} source=1 dest: 0}, { cond=(AND p0 (NOT p1) (NOT p3)), acceptance={} source=1 dest: 2}, { cond=(NOT p0), acceptance={} source=1 dest: 5}], [{ cond=(OR (AND p0 p3) (AND p0 p2)), acceptance={0} source=2 dest: 0}, { cond=(AND p0 (NOT p3) (NOT p2)), acceptance={0} source=2 dest: 2}, { cond=(NOT p0), acceptance={0} source=2 dest: 5}], [{ cond=true, acceptance={} source=3 dest: 1}], [{ cond=true, acceptance={} source=4 dest: 3}], [{ cond=true, acceptance={0} source=5 dest: 5}]], initial=4, aps=[p0:(AND (EQ s6 1) (EQ s9 1)), p1:(OR (EQ s1 0) (EQ s7 0)), p3:(EQ s0 0), p2:(EQ s0 1)], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, complete, deterministic, no-univ-branch, unambiguous, semi-deterministic, stutter-sensitive, very-weak, weak, inherently-weak], stateDesc=[null, null, null, null, null, null][false, false, false, false, false, false]]
Entered a terminal (fully accepting) state of product in 2 steps with 0 reset in 1 ms.
FORMULA ShieldRVt-PT-002A-LTLFireability-01 FALSE TECHNIQUES STUTTER_TEST
Treatment of property ShieldRVt-PT-002A-LTLFireability-01 finished in 530 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202303021504/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(F((F((p0&&F(p1)))&&X((p1||G((p2 U X(p2))))))))'
Support contains 5 out of 19 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 19/19 places, 18/18 transitions.
Applied a total of 0 rules in 2 ms. Remains 19 /19 variables (removed 0) and now considering 18/18 (removed 0) transitions.
[2023-03-18 20:20:27] [INFO ] Invariant cache hit.
[2023-03-18 20:20:28] [INFO ] Implicit Places using invariants in 45 ms returned []
[2023-03-18 20:20:28] [INFO ] Invariant cache hit.
[2023-03-18 20:20:28] [INFO ] Implicit Places using invariants and state equation in 52 ms returned []
Implicit Place search using SMT with State Equation took 101 ms to find 0 implicit places.
[2023-03-18 20:20:28] [INFO ] Invariant cache hit.
[2023-03-18 20:20:28] [INFO ] Dead Transitions using invariants and state equation in 43 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 147 ms. Remains : 19/19 places, 18/18 transitions.
Stuttering acceptance computed with spot in 419 ms :[(OR (NOT p1) (NOT p0)), (OR (NOT p0) (NOT p1)), (AND (NOT p1) (NOT p2)), (NOT p1), (OR (AND (NOT p0) (NOT p2)) (AND (NOT p1) (NOT p2))), (OR (AND (NOT p0) (NOT p2)) (AND (NOT p1) (NOT p2))), (AND (NOT p1) (NOT p2)), (AND (NOT p1) (NOT p2)), (AND (NOT p1) (NOT p2)), (AND (NOT p1) (NOT p2))]
Running random walk in product with property : ShieldRVt-PT-002A-LTLFireability-02 automaton TGBA Formula[mat=[[{ cond=(NOT p0), acceptance={} source=0 dest: 1}, { cond=true, acceptance={} source=0 dest: 2}, { cond=(AND p0 (NOT p1)), acceptance={} source=0 dest: 3}], [{ cond=(NOT p0), acceptance={0} source=1 dest: 1}, { cond=(AND p0 (NOT p1)), acceptance={} source=1 dest: 3}], [{ cond=(NOT p1), acceptance={} source=2 dest: 2}, { cond=(AND (NOT p0) (NOT p1)), acceptance={} source=2 dest: 4}, { cond=(AND (NOT p0) (NOT p1) (NOT p2)), acceptance={} source=2 dest: 5}, { cond=(AND (NOT p1) (NOT p2)), acceptance={0} source=2 dest: 6}, { cond=(AND (NOT p1) p2), acceptance={0} source=2 dest: 7}, { cond=(AND p0 (NOT p1) (NOT p2)), acceptance={} source=2 dest: 9}], [{ cond=(NOT p1), acceptance={0} source=3 dest: 3}], [{ cond=(NOT p0), acceptance={} source=4 dest: 4}, { cond=(AND (NOT p0) (NOT p2)), acceptance={} source=4 dest: 5}, { cond=(AND p0 (NOT p1)), acceptance={} source=4 dest: 8}, { cond=(AND p0 (NOT p1) (NOT p2)), acceptance={} source=4 dest: 9}], [{ cond=(AND (NOT p0) (NOT p2)), acceptance={} source=5 dest: 1}, { cond=(AND p0 (NOT p1) (NOT p2)), acceptance={} source=5 dest: 3}], [{ cond=(AND (NOT p1) (NOT p2)), acceptance={} source=6 dest: 2}, { cond=(AND (NOT p0) (NOT p1) (NOT p2)), acceptance={} source=6 dest: 4}, { cond=(AND (NOT p0) (NOT p1) (NOT p2)), acceptance={} source=6 dest: 5}, { cond=(AND (NOT p1) (NOT p2)), acceptance={0} source=6 dest: 6}, { cond=(AND p0 (NOT p1) (NOT p2)), acceptance={} source=6 dest: 9}], [{ cond=(AND (NOT p0) (NOT p1) (NOT p2)), acceptance={} source=7 dest: 5}, { cond=(AND (NOT p1) (NOT p2)), acceptance={0} source=7 dest: 6}, { cond=(AND p0 (NOT p1) (NOT p2)), acceptance={} source=7 dest: 9}], [{ cond=(NOT p1), acceptance={} source=8 dest: 8}, { cond=(AND (NOT p1) (NOT p2)), acceptance={} source=8 dest: 9}], [{ cond=(AND (NOT p1) (NOT p2)), acceptance={} source=9 dest: 3}]], initial=0, aps=[p0:(EQ s5 1), p1:(AND (EQ s2 1) (EQ s4 1) (EQ s10 1)), p2:(EQ s0 1)], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, no-univ-branch, stutter-sensitive], stateDesc=[null, null, null, null, null, null, null, null, null, null][false, false, false, false, false, false, false, false, false, false]]
Product exploration explored 100000 steps with 3572 reset in 270 ms.
Stack based approach found an accepted trace after 19 steps with 0 reset with depth 20 and stack size 20 in 1 ms.
FORMULA ShieldRVt-PT-002A-LTLFireability-02 FALSE TECHNIQUES STACK_TEST
Treatment of property ShieldRVt-PT-002A-LTLFireability-02 finished in 872 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202303021504/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X(X(F((!p0 U (p1||G(!p0)))))))'
Support contains 4 out of 19 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 19/19 places, 18/18 transitions.
Applied a total of 0 rules in 1 ms. Remains 19 /19 variables (removed 0) and now considering 18/18 (removed 0) transitions.
[2023-03-18 20:20:28] [INFO ] Invariant cache hit.
[2023-03-18 20:20:28] [INFO ] Implicit Places using invariants in 30 ms returned []
[2023-03-18 20:20:28] [INFO ] Invariant cache hit.
[2023-03-18 20:20:28] [INFO ] Implicit Places using invariants and state equation in 39 ms returned []
Implicit Place search using SMT with State Equation took 72 ms to find 0 implicit places.
[2023-03-18 20:20:28] [INFO ] Invariant cache hit.
[2023-03-18 20:20:28] [INFO ] Dead Transitions using invariants and state equation in 27 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 101 ms. Remains : 19/19 places, 18/18 transitions.
Stuttering acceptance computed with spot in 127 ms :[(AND (NOT p1) p0), (AND (NOT p1) p0), (AND (NOT p1) p0)]
Running random walk in product with property : ShieldRVt-PT-002A-LTLFireability-03 automaton TGBA Formula[mat=[[{ cond=true, acceptance={} source=0 dest: 1}], [{ cond=true, acceptance={} source=1 dest: 2}], [{ cond=(AND (NOT p1) (NOT p0)), acceptance={} source=2 dest: 2}, { cond=(AND (NOT p1) p0), acceptance={0} source=2 dest: 2}]], initial=0, aps=[p1:(AND (NEQ s0 1) (NOT (AND (EQ s12 1) (EQ s13 1) (EQ s16 1)))), p0:(EQ s0 1)], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, deterministic, no-univ-branch, unambiguous, semi-deterministic, stutter-sensitive], stateDesc=[null, null, null][false, false, false]]
Product exploration explored 100000 steps with 33333 reset in 120 ms.
Product exploration explored 100000 steps with 33333 reset in 129 ms.
Computed a total of 1 stabilizing places and 1 stable transitions
Computed a total of 1 stabilizing places and 1 stable transitions
Detected a total of 1/19 stabilizing places and 1/18 transitions leading to convergence knowledge of the form 'F(Gp|G!p)' for 1/2 atomic propositions.
Knowledge obtained : [(AND (NOT p1) p0), (X (X (NOT (AND (NOT p1) (NOT p0))))), (X (X (NOT (AND (NOT p1) p0)))), (F (OR (G p0) (G (NOT p0))))]
False Knowledge obtained : []
Knowledge sufficient to adopt a stutter insensitive property.
Property proved to be true thanks to knowledge :(AND (NOT p1) p0)
Knowledge based reduction with 4 factoid took 162 ms. Reduced automaton from 3 states, 4 edges and 2 AP (stutter sensitive) to 1 states, 0 edges and 0 AP (stutter insensitive).
FORMULA ShieldRVt-PT-002A-LTLFireability-03 TRUE TECHNIQUES KNOWLEDGE
Treatment of property ShieldRVt-PT-002A-LTLFireability-03 finished in 671 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202303021504/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(G((F(p0)&&F(G(p1)))))'
Support contains 3 out of 19 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 19/19 places, 18/18 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 0 with 2 rules applied. Total rules applied 2 place count 18 transition count 17
Applied a total of 2 rules in 7 ms. Remains 18 /19 variables (removed 1) and now considering 17/18 (removed 1) transitions.
// Phase 1: matrix 17 rows 18 cols
[2023-03-18 20:20:29] [INFO ] Computed 9 place invariants in 0 ms
[2023-03-18 20:20:29] [INFO ] Implicit Places using invariants in 28 ms returned [11]
Discarding 1 places :
Implicit Place search using SMT only with invariants took 30 ms to find 1 implicit places.
Starting structural reductions in SI_LTL mode, iteration 1 : 17/19 places, 17/18 transitions.
Applied a total of 0 rules in 2 ms. Remains 17 /17 variables (removed 0) and now considering 17/17 (removed 0) transitions.
Finished structural reductions in SI_LTL mode , in 2 iterations and 40 ms. Remains : 17/19 places, 17/18 transitions.
Stuttering acceptance computed with spot in 106 ms :[(OR (NOT p0) (NOT p1)), (NOT p0), (NOT p1)]
Running random walk in product with property : ShieldRVt-PT-002A-LTLFireability-04 automaton TGBA Formula[mat=[[{ cond=true, acceptance={} source=0 dest: 0}, { cond=(NOT p0), acceptance={} source=0 dest: 1}, { cond=(NOT p1), acceptance={} source=0 dest: 2}], [{ cond=(NOT p0), acceptance={0} source=1 dest: 1}], [{ cond=p1, acceptance={} source=2 dest: 2}, { cond=(NOT p1), acceptance={0} source=2 dest: 2}]], initial=0, aps=[p0:(AND (EQ s6 1) (EQ s9 1) (EQ s9 1)), p1:(EQ s3 1)], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, no-univ-branch, stutter-invariant], stateDesc=[null, null, null][true, true, true]]
Product exploration explored 100000 steps with 2 reset in 183 ms.
Stack based approach found an accepted trace after 21 steps with 1 reset with depth 17 and stack size 17 in 0 ms.
FORMULA ShieldRVt-PT-002A-LTLFireability-04 FALSE TECHNIQUES STACK_TEST
Treatment of property ShieldRVt-PT-002A-LTLFireability-04 finished in 343 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202303021504/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X(G(p0)))'
Support contains 1 out of 19 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 19/19 places, 18/18 transitions.
Applied a total of 0 rules in 1 ms. Remains 19 /19 variables (removed 0) and now considering 18/18 (removed 0) transitions.
// Phase 1: matrix 18 rows 19 cols
[2023-03-18 20:20:29] [INFO ] Computed 9 place invariants in 1 ms
[2023-03-18 20:20:29] [INFO ] Implicit Places using invariants in 36 ms returned []
[2023-03-18 20:20:29] [INFO ] Invariant cache hit.
[2023-03-18 20:20:29] [INFO ] Implicit Places using invariants and state equation in 40 ms returned []
Implicit Place search using SMT with State Equation took 78 ms to find 0 implicit places.
[2023-03-18 20:20:29] [INFO ] Invariant cache hit.
[2023-03-18 20:20:29] [INFO ] Dead Transitions using invariants and state equation in 33 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 113 ms. Remains : 19/19 places, 18/18 transitions.
Stuttering acceptance computed with spot in 76 ms :[true, (NOT p0), (NOT p0)]
Running random walk in product with property : ShieldRVt-PT-002A-LTLFireability-05 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:(EQ s15 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 1 steps with 0 reset in 0 ms.
FORMULA ShieldRVt-PT-002A-LTLFireability-05 FALSE TECHNIQUES STUTTER_TEST
Treatment of property ShieldRVt-PT-002A-LTLFireability-05 finished in 211 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202303021504/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X(F(p0)))'
Support contains 1 out of 19 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 19/19 places, 18/18 transitions.
Applied a total of 0 rules in 0 ms. Remains 19 /19 variables (removed 0) and now considering 18/18 (removed 0) transitions.
[2023-03-18 20:20:30] [INFO ] Invariant cache hit.
[2023-03-18 20:20:30] [INFO ] Implicit Places using invariants in 26 ms returned []
[2023-03-18 20:20:30] [INFO ] Invariant cache hit.
[2023-03-18 20:20:30] [INFO ] Implicit Places using invariants and state equation in 31 ms returned []
Implicit Place search using SMT with State Equation took 59 ms to find 0 implicit places.
[2023-03-18 20:20:30] [INFO ] Invariant cache hit.
[2023-03-18 20:20:30] [INFO ] Dead Transitions using invariants and state equation in 29 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 90 ms. Remains : 19/19 places, 18/18 transitions.
Stuttering acceptance computed with spot in 63 ms :[(NOT p0), (NOT p0)]
Running random walk in product with property : ShieldRVt-PT-002A-LTLFireability-08 automaton TGBA Formula[mat=[[{ cond=true, acceptance={} source=0 dest: 1}], [{ cond=(NOT p0), acceptance={0} source=1 dest: 1}]], initial=0, aps=[p0:(NEQ s11 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 89 ms.
Product exploration explored 100000 steps with 50000 reset in 98 ms.
Computed a total of 1 stabilizing places and 1 stable transitions
Computed a total of 1 stabilizing places and 1 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 75 ms. Reduced automaton from 2 states, 2 edges and 1 AP (stutter sensitive) to 1 states, 0 edges and 0 AP (stutter insensitive).
FORMULA ShieldRVt-PT-002A-LTLFireability-08 TRUE TECHNIQUES KNOWLEDGE
Treatment of property ShieldRVt-PT-002A-LTLFireability-08 finished in 429 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202303021504/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(F(p0))'
Support contains 3 out of 19 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 19/19 places, 18/18 transitions.
Applied a total of 0 rules in 3 ms. Remains 19 /19 variables (removed 0) and now considering 18/18 (removed 0) transitions.
[2023-03-18 20:20:30] [INFO ] Invariant cache hit.
[2023-03-18 20:20:30] [INFO ] Implicit Places using invariants in 34 ms returned []
[2023-03-18 20:20:30] [INFO ] Invariant cache hit.
[2023-03-18 20:20:30] [INFO ] Implicit Places using invariants and state equation in 42 ms returned []
Implicit Place search using SMT with State Equation took 79 ms to find 0 implicit places.
[2023-03-18 20:20:30] [INFO ] Redundant transitions in 0 ms returned []
[2023-03-18 20:20:30] [INFO ] Invariant cache hit.
[2023-03-18 20:20:30] [INFO ] Dead Transitions using invariants and state equation in 39 ms found 0 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 128 ms. Remains : 19/19 places, 18/18 transitions.
Stuttering acceptance computed with spot in 38 ms :[(NOT p0)]
Running random walk in product with property : ShieldRVt-PT-002A-LTLFireability-09 automaton TGBA Formula[mat=[[{ cond=(NOT p0), acceptance={0} source=0 dest: 0}]], initial=0, aps=[p0:(AND (EQ s3 1) (EQ s12 1) (EQ s18 1))], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, colored, deterministic, no-univ-branch, unambiguous, semi-deterministic, stutter-invariant, very-weak, weak, inherently-weak], stateDesc=[null][true]]
Product exploration explored 100000 steps with 4080 reset in 110 ms.
Stack based approach found an accepted trace after 9 steps with 0 reset with depth 10 and stack size 10 in 0 ms.
FORMULA ShieldRVt-PT-002A-LTLFireability-09 FALSE TECHNIQUES STACK_TEST
Treatment of property ShieldRVt-PT-002A-LTLFireability-09 finished in 289 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202303021504/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!((p0 U G((p1||F(!p2)))))'
Support contains 7 out of 19 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 19/19 places, 18/18 transitions.
Applied a total of 0 rules in 3 ms. Remains 19 /19 variables (removed 0) and now considering 18/18 (removed 0) transitions.
[2023-03-18 20:20:30] [INFO ] Invariant cache hit.
[2023-03-18 20:20:30] [INFO ] Implicit Places using invariants in 35 ms returned []
[2023-03-18 20:20:30] [INFO ] Invariant cache hit.
[2023-03-18 20:20:30] [INFO ] Implicit Places using invariants and state equation in 35 ms returned []
Implicit Place search using SMT with State Equation took 72 ms to find 0 implicit places.
[2023-03-18 20:20:30] [INFO ] Redundant transitions in 0 ms returned []
[2023-03-18 20:20:30] [INFO ] Invariant cache hit.
[2023-03-18 20:20:30] [INFO ] Dead Transitions using invariants and state equation in 30 ms found 0 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 113 ms. Remains : 19/19 places, 18/18 transitions.
Stuttering acceptance computed with spot in 250 ms :[(AND (NOT p1) p2), p2, (AND p2 (NOT p1)), (AND (NOT p1) p2), (AND p2 (NOT p1))]
Running random walk in product with property : ShieldRVt-PT-002A-LTLFireability-11 automaton TGBA Formula[mat=[[{ cond=p0, acceptance={} source=0 dest: 0}, { cond=(AND (NOT p1) p2 (NOT p0)), acceptance={} source=0 dest: 1}, { cond=(NOT p0), acceptance={} source=0 dest: 2}, { cond=(AND (NOT p1) p2 p0), acceptance={} source=0 dest: 3}], [{ cond=p2, acceptance={0} source=1 dest: 1}], [{ cond=(AND (NOT p1) p2), acceptance={} source=2 dest: 1}, { cond=true, acceptance={} source=2 dest: 2}], [{ cond=(AND (NOT p1) p2 (NOT p0)), acceptance={} source=3 dest: 1}, { cond=(AND p1 p2 p0), acceptance={} source=3 dest: 3}, { cond=(AND (NOT p1) p2 p0), acceptance={0} source=3 dest: 3}, { cond=(AND p1 p2 (NOT p0)), acceptance={} source=3 dest: 4}], [{ cond=(AND (NOT p1) p2), acceptance={} source=4 dest: 1}, { cond=(AND p1 p2), acceptance={} source=4 dest: 4}]], initial=0, aps=[p0:(EQ s17 1), p1:(AND (EQ s8 1) (EQ s10 1) (EQ s15 1) (EQ s11 1)), p2:(AND (EQ s11 1) (NOT (AND (EQ s2 1) (EQ s4 1) (EQ s10 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]]
Product exploration explored 100000 steps with 2575 reset in 128 ms.
Stack based approach found an accepted trace after 204 steps with 4 reset with depth 34 and stack size 34 in 0 ms.
FORMULA ShieldRVt-PT-002A-LTLFireability-11 FALSE TECHNIQUES STACK_TEST
Treatment of property ShieldRVt-PT-002A-LTLFireability-11 finished in 512 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202303021504/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(F((p0||G(p1))))'
Support contains 4 out of 19 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 19/19 places, 18/18 transitions.
Applied a total of 0 rules in 2 ms. Remains 19 /19 variables (removed 0) and now considering 18/18 (removed 0) transitions.
[2023-03-18 20:20:31] [INFO ] Invariant cache hit.
[2023-03-18 20:20:31] [INFO ] Implicit Places using invariants in 44 ms returned []
[2023-03-18 20:20:31] [INFO ] Invariant cache hit.
[2023-03-18 20:20:31] [INFO ] Implicit Places using invariants and state equation in 43 ms returned []
Implicit Place search using SMT with State Equation took 88 ms to find 0 implicit places.
[2023-03-18 20:20:31] [INFO ] Redundant transitions in 0 ms returned []
[2023-03-18 20:20:31] [INFO ] Invariant cache hit.
[2023-03-18 20:20:31] [INFO ] Dead Transitions using invariants and state equation in 27 ms found 0 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 124 ms. Remains : 19/19 places, 18/18 transitions.
Stuttering acceptance computed with spot in 47 ms :[(AND (NOT p1) (NOT p0))]
Running random walk in product with property : ShieldRVt-PT-002A-LTLFireability-12 automaton TGBA Formula[mat=[[{ cond=(AND p1 (NOT p0)), acceptance={} source=0 dest: 0}, { cond=(AND (NOT p1) (NOT p0)), acceptance={0} source=0 dest: 0}]], initial=0, aps=[p1:(EQ s15 1), p0:(AND (EQ s12 1) (EQ s13 1) (EQ s16 1))], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, deterministic, no-univ-branch, unambiguous, semi-deterministic, stutter-invariant], stateDesc=[null][true]]
Product exploration explored 100000 steps with 8121 reset in 123 ms.
Stack based approach found an accepted trace after 3 steps with 0 reset with depth 4 and stack size 4 in 0 ms.
FORMULA ShieldRVt-PT-002A-LTLFireability-12 FALSE TECHNIQUES STACK_TEST
Treatment of property ShieldRVt-PT-002A-LTLFireability-12 finished in 319 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202303021504/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(G(F((p0||(p1 U p2)))))'
Support contains 2 out of 19 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 : 19/19 places, 18/18 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 0 with 2 rules applied. Total rules applied 2 place count 18 transition count 17
Applied a total of 2 rules in 5 ms. Remains 18 /19 variables (removed 1) and now considering 17/18 (removed 1) transitions.
// Phase 1: matrix 17 rows 18 cols
[2023-03-18 20:20:31] [INFO ] Computed 9 place invariants in 1 ms
[2023-03-18 20:20:31] [INFO ] Implicit Places using invariants in 41 ms returned [11]
Discarding 1 places :
Implicit Place search using SMT only with invariants took 42 ms to find 1 implicit places.
Starting structural reductions in SI_LTL mode, iteration 1 : 17/19 places, 17/18 transitions.
Applied a total of 0 rules in 2 ms. Remains 17 /17 variables (removed 0) and now considering 17/17 (removed 0) transitions.
Finished structural reductions in SI_LTL mode , in 2 iterations and 49 ms. Remains : 17/19 places, 17/18 transitions.
Stuttering acceptance computed with spot in 105 ms :[(AND (NOT p2) (NOT p0)), (AND (NOT p2) (NOT p0))]
Running random walk in product with property : ShieldRVt-PT-002A-LTLFireability-14 automaton TGBA Formula[mat=[[{ cond=true, acceptance={} source=0 dest: 0}, { cond=(AND (NOT p2) (NOT p0)), acceptance={} source=0 dest: 1}], [{ cond=(AND (NOT p2) (NOT p0)), acceptance={0} source=1 dest: 1}]], initial=0, aps=[p2:(EQ s11 1), p0:(EQ s9 0)], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, no-univ-branch, stutter-invariant, very-weak, weak, inherently-weak], stateDesc=[null, null][true, true]]
Product exploration explored 100000 steps with 6595 reset in 110 ms.
Stack based approach found an accepted trace after 613 steps with 44 reset with depth 7 and stack size 7 in 1 ms.
FORMULA ShieldRVt-PT-002A-LTLFireability-14 FALSE TECHNIQUES STACK_TEST
Treatment of property ShieldRVt-PT-002A-LTLFireability-14 finished in 290 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202303021504/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(G(F(((p1&&(p2 U p3))||p0))))'
Support contains 5 out of 19 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 19/19 places, 18/18 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 1 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 0 with 2 rules applied. Total rules applied 2 place count 18 transition count 17
Applied a total of 2 rules in 5 ms. Remains 18 /19 variables (removed 1) and now considering 17/18 (removed 1) transitions.
[2023-03-18 20:20:31] [INFO ] Invariant cache hit.
[2023-03-18 20:20:31] [INFO ] Implicit Places using invariants in 43 ms returned [11]
Discarding 1 places :
Implicit Place search using SMT only with invariants took 45 ms to find 1 implicit places.
Starting structural reductions in SI_LTL mode, iteration 1 : 17/19 places, 17/18 transitions.
Applied a total of 0 rules in 2 ms. Remains 17 /17 variables (removed 0) and now considering 17/17 (removed 0) transitions.
Finished structural reductions in SI_LTL mode , in 2 iterations and 52 ms. Remains : 17/19 places, 17/18 transitions.
Stuttering acceptance computed with spot in 147 ms :[(OR (AND (NOT p0) (NOT p3)) (AND (NOT p0) (NOT p1))), (OR (AND (NOT p0) (NOT p3)) (AND (NOT p0) (NOT p1))), (AND (NOT p0) (NOT p3))]
Running random walk in product with property : ShieldRVt-PT-002A-LTLFireability-15 automaton TGBA Formula[mat=[[{ cond=true, acceptance={} source=0 dest: 0}, { cond=(OR (AND (NOT p3) (NOT p0) (NOT p2)) (AND (NOT p1) (NOT p0))), acceptance={} source=0 dest: 1}, { cond=(AND (NOT p3) p1 (NOT p0) p2), acceptance={} source=0 dest: 2}], [{ cond=(OR (AND (NOT p3) (NOT p0) (NOT p2)) (AND (NOT p1) (NOT p0))), acceptance={0} source=1 dest: 1}, { cond=(AND (NOT p3) p1 (NOT p0) p2), acceptance={0} source=1 dest: 2}], [{ cond=(AND (NOT p3) (NOT p0) (NOT p2)), acceptance={0} source=2 dest: 1}, { cond=(AND (NOT p3) (NOT p0) p2), acceptance={0} source=2 dest: 2}]], initial=0, aps=[p3:(AND (EQ s8 1) (EQ s10 1) (EQ s13 1)), p0:(OR (EQ s3 0) (AND (EQ s8 1) (EQ s10 1) (EQ s13 1) (EQ s3 1))), p2:(EQ s3 1), p1:(EQ s9 1)], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, no-univ-branch, stutter-invariant, weak, inherently-weak], stateDesc=[null, null, null][true, true, true]]
Product exploration explored 100000 steps with 3452 reset in 162 ms.
Stack based approach found an accepted trace after 8480 steps with 298 reset with depth 44 and stack size 36 in 15 ms.
FORMULA ShieldRVt-PT-002A-LTLFireability-15 FALSE TECHNIQUES STACK_TEST
Treatment of property ShieldRVt-PT-002A-LTLFireability-15 finished in 420 ms.
All properties solved by simple procedures.
Total runtime 5776 ms.

BK_STOP 1679170832511

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

+ export BINDIR=/home/mcc/BenchKit/bin//../itstools/bin//../
+ BINDIR=/home/mcc/BenchKit/bin//../itstools/bin//../
++ pwd
+ export MODEL=/home/mcc/execution
+ MODEL=/home/mcc/execution
+ [[ LTLFireability = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution LTLFireability -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600
+ ulimit -s 65536
+ [[ -z '' ]]
+ export LTSMIN_MEM_SIZE=8589934592
+ LTSMIN_MEM_SIZE=8589934592
+ export PYTHONPATH=/home/mcc/BenchKit/itstools/pylibs
+ PYTHONPATH=/home/mcc/BenchKit/itstools/pylibs
+ export LD_LIBRARY_PATH=/home/mcc/BenchKit/itstools/pylibs:
+ LD_LIBRARY_PATH=/home/mcc/BenchKit/itstools/pylibs:
++ sed s/.jar//
++ perl -pe 's/.*\.//g'
++ ls /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202303021504.jar
+ VERSION=202303021504
+ echo 'Running Version 202303021504'
+ /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/its-tools -pnfolder /home/mcc/execution -examination LTLFireability -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600

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="ShieldRVt-PT-002A"
export BK_EXAMINATION="LTLFireability"
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 2-5348"
echo " Executing tool itstools"
echo " Input is ShieldRVt-PT-002A, 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 r421-tajo-167905974900196"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/ShieldRVt-PT-002A.tgz
mv ShieldRVt-PT-002A execution
cd execution
if [ "LTLFireability" = "ReachabilityDeadlock" ] || [ "LTLFireability" = "UpperBounds" ] || [ "LTLFireability" = "QuasiLiveness" ] || [ "LTLFireability" = "StableMarking" ] || [ "LTLFireability" = "Liveness" ] || [ "LTLFireability" = "OneSafe" ] || [ "LTLFireability" = "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 [ "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
elif [ "LTLFireability" = "ReachabilityDeadlock" ] || [ "LTLFireability" = "QuasiLiveness" ] || [ "LTLFireability" = "StableMarking" ] || [ "LTLFireability" = "Liveness" ] || [ "LTLFireability" = "OneSafe" ] ; then
echo "FORMULA_NAME LTLFireability"
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 ;