Execution Chart

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

Trace from the execution

Formatting '/data/fkordon/mcc2023-input.r133-smll-167819409900004.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2023-input.qcow2 cluster_size=65536 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
........................................................................................................
=====================================================================
Generated by BenchKit 2-5348
Executing tool itstools
Input is Dekker-PT-010, examination is LTLFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r133-smll-167819409900004
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 532K
-rw-r--r-- 1 mcc users 7.0K Feb 26 01:44 CTLCardinality.txt
-rw-r--r-- 1 mcc users 74K Feb 26 01:44 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.9K Feb 26 01:42 CTLFireability.txt
-rw-r--r-- 1 mcc users 48K Feb 26 01:42 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Jan 29 11:40 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.4K Jan 29 11:40 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 3.7K Feb 25 15:56 LTLCardinality.txt
-rw-r--r-- 1 mcc users 25K Feb 25 15:56 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.3K Feb 25 15:56 LTLFireability.txt
-rw-r--r-- 1 mcc users 15K Feb 25 15:56 LTLFireability.xml
-rw-r--r-- 1 mcc users 9.6K Feb 26 01:46 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 98K Feb 26 01:46 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 14K Feb 26 01:45 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 108K Feb 26 01:45 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K Feb 25 15:56 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.6K Feb 25 15:56 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 5 18:22 equiv_col
-rw-r--r-- 1 mcc users 4 Mar 5 18:22 instance
-rw-r--r-- 1 mcc users 6 Mar 5 18:22 iscolored
-rw-r--r-- 1 mcc users 65K Mar 5 18:22 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 Dekker-PT-010-LTLFireability-00
FORMULA_NAME Dekker-PT-010-LTLFireability-01
FORMULA_NAME Dekker-PT-010-LTLFireability-02
FORMULA_NAME Dekker-PT-010-LTLFireability-03
FORMULA_NAME Dekker-PT-010-LTLFireability-04
FORMULA_NAME Dekker-PT-010-LTLFireability-05
FORMULA_NAME Dekker-PT-010-LTLFireability-06
FORMULA_NAME Dekker-PT-010-LTLFireability-07
FORMULA_NAME Dekker-PT-010-LTLFireability-08
FORMULA_NAME Dekker-PT-010-LTLFireability-09
FORMULA_NAME Dekker-PT-010-LTLFireability-10
FORMULA_NAME Dekker-PT-010-LTLFireability-11
FORMULA_NAME Dekker-PT-010-LTLFireability-12
FORMULA_NAME Dekker-PT-010-LTLFireability-13
FORMULA_NAME Dekker-PT-010-LTLFireability-14
FORMULA_NAME Dekker-PT-010-LTLFireability-15

=== Now, execution of the tool begins

BK_START 1678256708276

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=Dekker-PT-010
Not applying reductions.
Model is PT
LTLFireability PT
Running Version 202303021504
[2023-03-08 06:25:11] [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]
[2023-03-08 06:25:11] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2023-03-08 06:25:11] [INFO ] Load time of PNML (sax parser for PT used): 115 ms
[2023-03-08 06:25:11] [INFO ] Transformed 50 places.
[2023-03-08 06:25:11] [INFO ] Transformed 120 transitions.
[2023-03-08 06:25:11] [INFO ] Found NUPN structural information;
[2023-03-08 06:25:11] [INFO ] Parsed PT model containing 50 places and 120 transitions and 820 arcs in 265 ms.
Parsed 16 properties from file /home/mcc/execution/LTLFireability.xml in 15 ms.
Working with output stream class java.io.PrintStream
Initial state reduction rules removed 2 formulas.
FORMULA Dekker-PT-010-LTLFireability-05 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA Dekker-PT-010-LTLFireability-14 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Support contains 35 out of 50 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 50/50 places, 120/120 transitions.
Applied a total of 0 rules in 25 ms. Remains 50 /50 variables (removed 0) and now considering 120/120 (removed 0) transitions.
[2023-03-08 06:25:12] [INFO ] Flow matrix only has 40 transitions (discarded 80 similar events)
// Phase 1: matrix 40 rows 50 cols
[2023-03-08 06:25:12] [INFO ] Computed 30 place invariants in 9 ms
[2023-03-08 06:25:12] [INFO ] Implicit Places using invariants in 313 ms returned [20, 23, 32, 35, 38, 41, 47]
Discarding 7 places :
Implicit Place search using SMT only with invariants took 377 ms to find 7 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 43/50 places, 120/120 transitions.
Applied a total of 0 rules in 6 ms. Remains 43 /43 variables (removed 0) and now considering 120/120 (removed 0) transitions.
Finished structural reductions in LTL mode , in 2 iterations and 409 ms. Remains : 43/50 places, 120/120 transitions.
Support contains 35 out of 43 places after structural reductions.
[2023-03-08 06:25:12] [INFO ] Flatten gal took : 89 ms
[2023-03-08 06:25:12] [INFO ] Flatten gal took : 34 ms
[2023-03-08 06:25:13] [INFO ] Input system was already deterministic with 120 transitions.
Finished random walk after 4993 steps, including 1 resets, run visited all 27 properties in 363 ms. (steps per millisecond=13 )
FORMULA Dekker-PT-010-LTLFireability-04 FALSE TECHNIQUES REACHABILITY_KNOWLEDGE
Computed a total of 0 stabilizing places and 0 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(G(p0)))'
Support contains 2 out of 43 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 43/43 places, 120/120 transitions.
Applied a total of 0 rules in 7 ms. Remains 43 /43 variables (removed 0) and now considering 120/120 (removed 0) transitions.
[2023-03-08 06:25:14] [INFO ] Flow matrix only has 40 transitions (discarded 80 similar events)
// Phase 1: matrix 40 rows 43 cols
[2023-03-08 06:25:14] [INFO ] Computed 23 place invariants in 3 ms
[2023-03-08 06:25:14] [INFO ] Implicit Places using invariants in 177 ms returned [27, 38]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 180 ms to find 2 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 41/43 places, 120/120 transitions.
Applied a total of 0 rules in 6 ms. Remains 41 /41 variables (removed 0) and now considering 120/120 (removed 0) transitions.
Finished structural reductions in LTL mode , in 2 iterations and 194 ms. Remains : 41/43 places, 120/120 transitions.
Stuttering acceptance computed with spot in 381 ms :[true, (NOT p0), (NOT p0)]
Running random walk in product with property : Dekker-PT-010-LTLFireability-00 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:(AND (EQ s4 1) (EQ s24 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 9 steps with 0 reset in 3 ms.
FORMULA Dekker-PT-010-LTLFireability-00 FALSE TECHNIQUES STUTTER_TEST
Treatment of property Dekker-PT-010-LTLFireability-00 finished in 696 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 3 out of 43 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 43/43 places, 120/120 transitions.
Applied a total of 0 rules in 4 ms. Remains 43 /43 variables (removed 0) and now considering 120/120 (removed 0) transitions.
[2023-03-08 06:25:14] [INFO ] Flow matrix only has 40 transitions (discarded 80 similar events)
[2023-03-08 06:25:14] [INFO ] Invariant cache hit.
[2023-03-08 06:25:14] [INFO ] Implicit Places using invariants in 142 ms returned [24, 27, 38]
Discarding 3 places :
Implicit Place search using SMT only with invariants took 144 ms to find 3 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 40/43 places, 120/120 transitions.
Applied a total of 0 rules in 5 ms. Remains 40 /40 variables (removed 0) and now considering 120/120 (removed 0) transitions.
Finished structural reductions in LTL mode , in 2 iterations and 154 ms. Remains : 40/43 places, 120/120 transitions.
Stuttering acceptance computed with spot in 121 ms :[true, (NOT p0), (NOT p0)]
Running random walk in product with property : Dekker-PT-010-LTLFireability-01 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 s3 0) (EQ s5 0) (EQ s24 0))], 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 2 steps with 0 reset in 0 ms.
FORMULA Dekker-PT-010-LTLFireability-01 FALSE TECHNIQUES STUTTER_TEST
Treatment of property Dekker-PT-010-LTLFireability-01 finished in 295 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((F(G(p0))||p1)) U p0)) U p0))'
Support contains 6 out of 43 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 43/43 places, 120/120 transitions.
Applied a total of 0 rules in 4 ms. Remains 43 /43 variables (removed 0) and now considering 120/120 (removed 0) transitions.
[2023-03-08 06:25:15] [INFO ] Flow matrix only has 40 transitions (discarded 80 similar events)
[2023-03-08 06:25:15] [INFO ] Invariant cache hit.
[2023-03-08 06:25:15] [INFO ] Implicit Places using invariants in 118 ms returned [24, 27, 38]
Discarding 3 places :
Implicit Place search using SMT only with invariants took 128 ms to find 3 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 40/43 places, 120/120 transitions.
Applied a total of 0 rules in 3 ms. Remains 40 /40 variables (removed 0) and now considering 120/120 (removed 0) transitions.
Finished structural reductions in LTL mode , in 2 iterations and 135 ms. Remains : 40/43 places, 120/120 transitions.
Stuttering acceptance computed with spot in 207 ms :[(NOT p0), (NOT p0), (AND (NOT p0) (NOT p1))]
Running random walk in product with property : Dekker-PT-010-LTLFireability-02 automaton TGBA Formula[mat=[[{ cond=(NOT p0), acceptance={} source=0 dest: 1}], [{ cond=(NOT p0), acceptance={0} source=1 dest: 1}, { cond=(AND (NOT p0) (NOT p1)), acceptance={} source=1 dest: 2}], [{ cond=(AND p0 (NOT p1)), acceptance={} source=2 dest: 2}, { cond=(AND (NOT p0) (NOT p1)), acceptance={0} source=2 dest: 2}]], initial=0, aps=[p0:(AND (EQ s13 1) (EQ s19 1) (EQ s32 1)), p1:(AND (EQ s15 1) (EQ s17 1) (EQ s34 1))], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, no-univ-branch, stutter-sensitive], stateDesc=[null, null, null][false, false, false]]
Product exploration explored 100000 steps with 4758 reset in 711 ms.
Stack based approach found an accepted trace after 6 steps with 0 reset with depth 7 and stack size 7 in 1 ms.
FORMULA Dekker-PT-010-LTLFireability-02 FALSE TECHNIQUES STACK_TEST
Treatment of property Dekker-PT-010-LTLFireability-02 finished in 1081 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(!p0) U p1)&&X(G(p2))))'
Support contains 17 out of 43 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 43/43 places, 120/120 transitions.
Applied a total of 0 rules in 2 ms. Remains 43 /43 variables (removed 0) and now considering 120/120 (removed 0) transitions.
[2023-03-08 06:25:16] [INFO ] Flow matrix only has 40 transitions (discarded 80 similar events)
[2023-03-08 06:25:16] [INFO ] Invariant cache hit.
[2023-03-08 06:25:16] [INFO ] Implicit Places using invariants in 116 ms returned [24, 27, 38]
Discarding 3 places :
Implicit Place search using SMT only with invariants took 117 ms to find 3 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 40/43 places, 120/120 transitions.
Applied a total of 0 rules in 2 ms. Remains 40 /40 variables (removed 0) and now considering 120/120 (removed 0) transitions.
Finished structural reductions in LTL mode , in 2 iterations and 122 ms. Remains : 40/43 places, 120/120 transitions.
Stuttering acceptance computed with spot in 362 ms :[true, (OR (NOT p1) (NOT p2)), (OR (NOT p2) (NOT p1) p0), (NOT p2), (OR (NOT p2) p0)]
Running random walk in product with property : Dekker-PT-010-LTLFireability-03 automaton TGBA Formula[mat=[[{ cond=true, acceptance={0} source=0 dest: 0}], [{ cond=(AND (NOT p1) p0), acceptance={} source=1 dest: 0}, { cond=(AND (NOT p1) (NOT p0)), acceptance={} source=1 dest: 2}, { cond=p1, acceptance={} source=1 dest: 3}], [{ cond=(OR p0 (NOT p2)), acceptance={0} source=2 dest: 0}, { cond=(AND (NOT p1) (NOT p0) p2), acceptance={0} source=2 dest: 2}, { cond=(AND p1 (NOT p0) p2), acceptance={0} source=2 dest: 4}], [{ cond=(NOT p2), acceptance={} source=3 dest: 0}, { cond=p2, acceptance={} source=3 dest: 3}], [{ cond=(OR p0 (NOT p2)), acceptance={} source=4 dest: 0}, { cond=(AND (NOT p0) p2), acceptance={} source=4 dest: 4}]], initial=1, aps=[p1:(OR (AND (EQ s13 1) (EQ s33 1)) (AND (EQ s7 1) (EQ s9 1) (EQ s26 1))), p0:(AND (EQ s0 1) (EQ s2 1) (EQ s4 1) (EQ s6 1) (EQ s8 1) (EQ s10 1) (EQ s12 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][false, false, false, false, false]]
Entered a terminal (fully accepting) state of product in 3 steps with 0 reset in 0 ms.
FORMULA Dekker-PT-010-LTLFireability-03 FALSE TECHNIQUES STUTTER_TEST
Treatment of property Dekker-PT-010-LTLFireability-03 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' '!(G(F(p0)))'
Support contains 3 out of 43 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 43/43 places, 120/120 transitions.
Applied a total of 0 rules in 22 ms. Remains 43 /43 variables (removed 0) and now considering 120/120 (removed 0) transitions.
[2023-03-08 06:25:16] [INFO ] Flow matrix only has 40 transitions (discarded 80 similar events)
[2023-03-08 06:25:16] [INFO ] Invariant cache hit.
[2023-03-08 06:25:16] [INFO ] Implicit Places using invariants in 142 ms returned [24, 27, 38]
Discarding 3 places :
Implicit Place search using SMT only with invariants took 145 ms to find 3 implicit places.
Starting structural reductions in SI_LTL mode, iteration 1 : 40/43 places, 120/120 transitions.
Applied a total of 0 rules in 13 ms. Remains 40 /40 variables (removed 0) and now considering 120/120 (removed 0) transitions.
Finished structural reductions in SI_LTL mode , in 2 iterations and 180 ms. Remains : 40/43 places, 120/120 transitions.
Stuttering acceptance computed with spot in 111 ms :[(NOT p0), (NOT p0)]
Running random walk in product with property : Dekker-PT-010-LTLFireability-06 automaton TGBA Formula[mat=[[{ cond=true, acceptance={} source=0 dest: 0}, { cond=(NOT p0), acceptance={} source=0 dest: 1}], [{ cond=(NOT p0), acceptance={0} source=1 dest: 1}]], initial=0, aps=[p0:(AND (EQ s1 1) (EQ s5 1) (EQ s20 1))], 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 4648 reset in 569 ms.
Stack based approach found an accepted trace after 10 steps with 1 reset with depth 6 and stack size 6 in 0 ms.
FORMULA Dekker-PT-010-LTLFireability-06 FALSE TECHNIQUES STACK_TEST
Treatment of property Dekker-PT-010-LTLFireability-06 finished in 882 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 43 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 43/43 places, 120/120 transitions.
Applied a total of 0 rules in 14 ms. Remains 43 /43 variables (removed 0) and now considering 120/120 (removed 0) transitions.
[2023-03-08 06:25:17] [INFO ] Flow matrix only has 40 transitions (discarded 80 similar events)
[2023-03-08 06:25:17] [INFO ] Invariant cache hit.
[2023-03-08 06:25:17] [INFO ] Implicit Places using invariants in 153 ms returned [24, 27, 38]
Discarding 3 places :
Implicit Place search using SMT only with invariants took 168 ms to find 3 implicit places.
Starting structural reductions in SI_LTL mode, iteration 1 : 40/43 places, 120/120 transitions.
Applied a total of 0 rules in 14 ms. Remains 40 /40 variables (removed 0) and now considering 120/120 (removed 0) transitions.
Finished structural reductions in SI_LTL mode , in 2 iterations and 196 ms. Remains : 40/43 places, 120/120 transitions.
Stuttering acceptance computed with spot in 54 ms :[(NOT p0)]
Running random walk in product with property : Dekker-PT-010-LTLFireability-07 automaton TGBA Formula[mat=[[{ cond=(NOT p0), acceptance={0} source=0 dest: 0}]], initial=0, aps=[p0:(AND (EQ s1 1) (EQ s3 1) (EQ s22 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 4795 reset in 453 ms.
Stack based approach found an accepted trace after 12 steps with 2 reset with depth 4 and stack size 4 in 0 ms.
FORMULA Dekker-PT-010-LTLFireability-07 FALSE TECHNIQUES STACK_TEST
Treatment of property Dekker-PT-010-LTLFireability-07 finished in 727 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 3 out of 43 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 43/43 places, 120/120 transitions.
Applied a total of 0 rules in 3 ms. Remains 43 /43 variables (removed 0) and now considering 120/120 (removed 0) transitions.
[2023-03-08 06:25:18] [INFO ] Flow matrix only has 40 transitions (discarded 80 similar events)
[2023-03-08 06:25:18] [INFO ] Invariant cache hit.
[2023-03-08 06:25:18] [INFO ] Implicit Places using invariants in 146 ms returned [24, 27, 38]
Discarding 3 places :
Implicit Place search using SMT only with invariants took 148 ms to find 3 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 40/43 places, 120/120 transitions.
Applied a total of 0 rules in 3 ms. Remains 40 /40 variables (removed 0) and now considering 120/120 (removed 0) transitions.
Finished structural reductions in LTL mode , in 2 iterations and 154 ms. Remains : 40/43 places, 120/120 transitions.
Stuttering acceptance computed with spot in 111 ms :[(NOT p0), (NOT p0)]
Running random walk in product with property : Dekker-PT-010-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:(OR (EQ s3 0) (EQ s19 0) (EQ s38 0))], 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 273 ms.
Product exploration explored 100000 steps with 50000 reset in 331 ms.
Computed a total of 0 stabilizing places and 0 stable transitions
Computed a total of 0 stabilizing places and 0 stable transitions
Knowledge obtained : [p0, (X p0)]
False Knowledge obtained : [(X (X (NOT p0))), (X (X p0))]
Property proved to be true thanks to knowledge :(X p0)
Knowledge based reduction with 2 factoid took 150 ms. Reduced automaton from 2 states, 2 edges and 1 AP (stutter sensitive) to 1 states, 0 edges and 0 AP (stutter insensitive).
FORMULA Dekker-PT-010-LTLFireability-08 TRUE TECHNIQUES KNOWLEDGE
Treatment of property Dekker-PT-010-LTLFireability-08 finished in 1045 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 43 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 43/43 places, 120/120 transitions.
Applied a total of 0 rules in 12 ms. Remains 43 /43 variables (removed 0) and now considering 120/120 (removed 0) transitions.
[2023-03-08 06:25:19] [INFO ] Flow matrix only has 40 transitions (discarded 80 similar events)
[2023-03-08 06:25:19] [INFO ] Invariant cache hit.
[2023-03-08 06:25:19] [INFO ] Implicit Places using invariants in 128 ms returned [24, 27, 38]
Discarding 3 places :
Implicit Place search using SMT only with invariants took 130 ms to find 3 implicit places.
Starting structural reductions in SI_LTL mode, iteration 1 : 40/43 places, 120/120 transitions.
Applied a total of 0 rules in 12 ms. Remains 40 /40 variables (removed 0) and now considering 120/120 (removed 0) transitions.
Finished structural reductions in SI_LTL mode , in 2 iterations and 155 ms. Remains : 40/43 places, 120/120 transitions.
Stuttering acceptance computed with spot in 56 ms :[(AND (NOT p1) (NOT p0))]
Running random walk in product with property : Dekker-PT-010-LTLFireability-09 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:(AND (EQ s1 1) (EQ s17 1) (EQ s36 1)), p0:(AND (EQ s13 1) (EQ s17 1) (EQ s36 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 4805 reset in 470 ms.
Stack based approach found an accepted trace after 66 steps with 4 reset with depth 11 and stack size 11 in 1 ms.
FORMULA Dekker-PT-010-LTLFireability-09 FALSE TECHNIQUES STACK_TEST
Treatment of property Dekker-PT-010-LTLFireability-09 finished in 706 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(G(p0)))'
Support contains 3 out of 43 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 43/43 places, 120/120 transitions.
Applied a total of 0 rules in 12 ms. Remains 43 /43 variables (removed 0) and now considering 120/120 (removed 0) transitions.
[2023-03-08 06:25:20] [INFO ] Flow matrix only has 40 transitions (discarded 80 similar events)
[2023-03-08 06:25:20] [INFO ] Invariant cache hit.
[2023-03-08 06:25:20] [INFO ] Implicit Places using invariants in 133 ms returned [24, 27, 38]
Discarding 3 places :
Implicit Place search using SMT only with invariants took 135 ms to find 3 implicit places.
Starting structural reductions in SI_LTL mode, iteration 1 : 40/43 places, 120/120 transitions.
Applied a total of 0 rules in 12 ms. Remains 40 /40 variables (removed 0) and now considering 120/120 (removed 0) transitions.
Finished structural reductions in SI_LTL mode , in 2 iterations and 160 ms. Remains : 40/43 places, 120/120 transitions.
Stuttering acceptance computed with spot in 56 ms :[(NOT p0)]
Running random walk in product with property : Dekker-PT-010-LTLFireability-10 automaton TGBA Formula[mat=[[{ cond=p0, acceptance={} source=0 dest: 0}, { cond=(NOT p0), acceptance={0} source=0 dest: 0}]], initial=0, aps=[p0:(AND (EQ s3 1) (EQ s11 1) (EQ s22 1))], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, complete, deterministic, no-univ-branch, unambiguous, semi-deterministic, stutter-invariant], stateDesc=[null][true]]
Product exploration explored 100000 steps with 0 reset in 444 ms.
Stack based approach found an accepted trace after 8 steps with 0 reset with depth 9 and stack size 9 in 0 ms.
FORMULA Dekker-PT-010-LTLFireability-10 FALSE TECHNIQUES STACK_TEST
Treatment of property Dekker-PT-010-LTLFireability-10 finished in 681 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||(F(p1)&&X(X(p2)))))))'
Support contains 7 out of 43 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 43/43 places, 120/120 transitions.
Applied a total of 0 rules in 3 ms. Remains 43 /43 variables (removed 0) and now considering 120/120 (removed 0) transitions.
[2023-03-08 06:25:20] [INFO ] Flow matrix only has 40 transitions (discarded 80 similar events)
[2023-03-08 06:25:20] [INFO ] Invariant cache hit.
[2023-03-08 06:25:20] [INFO ] Implicit Places using invariants in 105 ms returned [24, 38]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 115 ms to find 2 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 41/43 places, 120/120 transitions.
Applied a total of 0 rules in 3 ms. Remains 41 /41 variables (removed 0) and now considering 120/120 (removed 0) transitions.
Finished structural reductions in LTL mode , in 2 iterations and 122 ms. Remains : 41/43 places, 120/120 transitions.
Stuttering acceptance computed with spot in 301 ms :[(OR (AND (NOT p0) (NOT p1)) (AND (NOT p0) (NOT p2))), (OR (AND (NOT p0) (NOT p2)) (AND (NOT p0) (NOT p1))), (NOT p1), (NOT p2), (NOT p2), true]
Running random walk in product with property : Dekker-PT-010-LTLFireability-11 automaton TGBA Formula[mat=[[{ cond=true, acceptance={} source=0 dest: 1}], [{ cond=true, acceptance={} source=1 dest: 1}, { cond=(AND (NOT p0) (NOT p1)), acceptance={} source=1 dest: 2}, { cond=(NOT p0), acceptance={} source=1 dest: 3}], [{ cond=(NOT p1), acceptance={0} source=2 dest: 2}], [{ cond=true, acceptance={} source=3 dest: 4}], [{ cond=(NOT p2), acceptance={} source=4 dest: 5}], [{ cond=true, acceptance={0} source=5 dest: 5}]], initial=0, aps=[p0:(AND (EQ s6 1) (EQ s26 1)), p1:(OR (EQ s15 0) (EQ s17 0) (EQ s35 0)), p2:(AND (EQ s7 1) (EQ s28 1))], 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, null][false, false, false, false, false, false]]
Entered a terminal (fully accepting) state of product in 32 steps with 0 reset in 1 ms.
FORMULA Dekker-PT-010-LTLFireability-11 FALSE TECHNIQUES STUTTER_TEST
Treatment of property Dekker-PT-010-LTLFireability-11 finished in 454 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((G(p0)&&X((p1&&G(F((!p2 U (p3||G(!p2))))))))))'
Support contains 6 out of 43 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 43/43 places, 120/120 transitions.
Applied a total of 0 rules in 3 ms. Remains 43 /43 variables (removed 0) and now considering 120/120 (removed 0) transitions.
[2023-03-08 06:25:21] [INFO ] Flow matrix only has 40 transitions (discarded 80 similar events)
[2023-03-08 06:25:21] [INFO ] Invariant cache hit.
[2023-03-08 06:25:21] [INFO ] Implicit Places using invariants in 102 ms returned [24, 27, 38]
Discarding 3 places :
Implicit Place search using SMT only with invariants took 103 ms to find 3 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 40/43 places, 120/120 transitions.
Applied a total of 0 rules in 2 ms. Remains 40 /40 variables (removed 0) and now considering 120/120 (removed 0) transitions.
Finished structural reductions in LTL mode , in 2 iterations and 108 ms. Remains : 40/43 places, 120/120 transitions.
Stuttering acceptance computed with spot in 386 ms :[(OR (NOT p0) (NOT p1) (AND p2 (NOT p3))), (NOT p0), (OR (NOT p1) (AND p2 (NOT p3))), (AND (NOT p3) p2), (AND (NOT p3) p2)]
Running random walk in product with property : Dekker-PT-010-LTLFireability-12 automaton TGBA Formula[mat=[[{ cond=(NOT p0), acceptance={0} source=0 dest: 0}, { cond=p0, acceptance={} source=0 dest: 1}, { cond=p0, acceptance={0} source=0 dest: 2}], [{ cond=(NOT p0), acceptance={0} source=1 dest: 0}, { cond=p0, acceptance={} source=1 dest: 1}], [{ cond=(AND (NOT p0) (NOT p1)), acceptance={0} source=2 dest: 0}, { cond=(AND p0 (NOT p1)), acceptance={} source=2 dest: 1}, { cond=(AND p0 (NOT p1)), acceptance={0} source=2 dest: 2}, { cond=(AND p1 (NOT p3) p2), acceptance={} source=2 dest: 3}, { cond=p1, acceptance={} source=2 dest: 4}], [{ cond=(AND (NOT p3) (NOT p2)), acceptance={} source=3 dest: 3}, { cond=(AND (NOT p3) p2), acceptance={0} source=3 dest: 3}], [{ cond=(AND (NOT p3) p2), acceptance={} source=4 dest: 3}, { cond=true, acceptance={} source=4 dest: 4}]], initial=0, aps=[p0:(OR (EQ s7 0) (EQ s15 0) (EQ s26 0)), p1:(OR (EQ s11 0) (EQ s15 0) (EQ s30 0)), p3:(AND (NOT (AND (EQ s11 1) (EQ s15 1) (EQ s30 1))) (NOT (AND (EQ s11 ...], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, no-univ-branch, stutter-sensitive], stateDesc=[null, null, null, null, null][false, false, false, false, false]]
Product exploration explored 100000 steps with 1808 reset in 461 ms.
Stack based approach found an accepted trace after 95 steps with 1 reset with depth 69 and stack size 63 in 6 ms.
FORMULA Dekker-PT-010-LTLFireability-12 FALSE TECHNIQUES STACK_TEST
Treatment of property Dekker-PT-010-LTLFireability-12 finished in 1001 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(G((F(p0)||X((p1||F(p2)))))))'
Support contains 15 out of 43 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 43/43 places, 120/120 transitions.
Applied a total of 0 rules in 11 ms. Remains 43 /43 variables (removed 0) and now considering 120/120 (removed 0) transitions.
[2023-03-08 06:25:22] [INFO ] Flow matrix only has 40 transitions (discarded 80 similar events)
[2023-03-08 06:25:22] [INFO ] Invariant cache hit.
[2023-03-08 06:25:22] [INFO ] Implicit Places using invariants in 113 ms returned [24, 27, 38]
Discarding 3 places :
Implicit Place search using SMT only with invariants took 115 ms to find 3 implicit places.
Starting structural reductions in SI_LTL mode, iteration 1 : 40/43 places, 120/120 transitions.
Applied a total of 0 rules in 9 ms. Remains 40 /40 variables (removed 0) and now considering 120/120 (removed 0) transitions.
Finished structural reductions in SI_LTL mode , in 2 iterations and 136 ms. Remains : 40/43 places, 120/120 transitions.
Stuttering acceptance computed with spot in 114 ms :[(AND (NOT p0) (NOT p2) (NOT p1)), (AND (NOT p0) (NOT p2) (NOT p1))]
Running random walk in product with property : Dekker-PT-010-LTLFireability-13 automaton TGBA Formula[mat=[[{ cond=true, acceptance={} source=0 dest: 0}, { cond=(AND (NOT p0) (NOT p2) (NOT p1)), acceptance={} source=0 dest: 1}], [{ cond=(AND (NOT p0) (NOT p2) p1), acceptance={} source=1 dest: 1}, { cond=(AND (NOT p0) (NOT p2) (NOT p1)), acceptance={0} source=1 dest: 1}]], initial=0, aps=[p0:(AND (EQ s9 1) (EQ s19 1) (EQ s38 1) (EQ s9 1) (EQ s19 1) (EQ s38 1)), p2:(AND (EQ s0 1) (EQ s2 1) (EQ s4 1) (EQ s6 1) (EQ s8 1) (EQ s10 1) (EQ s12 1) ...], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, no-univ-branch, stutter-invariant], stateDesc=[null, null][true, true]]
Product exploration explored 100000 steps with 4878 reset in 504 ms.
Stack based approach found an accepted trace after 6 steps with 0 reset with depth 7 and stack size 7 in 0 ms.
FORMULA Dekker-PT-010-LTLFireability-13 FALSE TECHNIQUES STACK_TEST
Treatment of property Dekker-PT-010-LTLFireability-13 finished in 784 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((!p0&&(p1||X(G(p2)))&&X((F(p3)||G(!p0))))))'
Support contains 7 out of 43 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 43/43 places, 120/120 transitions.
Applied a total of 0 rules in 2 ms. Remains 43 /43 variables (removed 0) and now considering 120/120 (removed 0) transitions.
[2023-03-08 06:25:22] [INFO ] Flow matrix only has 40 transitions (discarded 80 similar events)
[2023-03-08 06:25:22] [INFO ] Invariant cache hit.
[2023-03-08 06:25:23] [INFO ] Implicit Places using invariants in 111 ms returned [24, 27]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 121 ms to find 2 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 41/43 places, 120/120 transitions.
Applied a total of 0 rules in 3 ms. Remains 41 /41 variables (removed 0) and now considering 120/120 (removed 0) transitions.
Finished structural reductions in LTL mode , in 2 iterations and 127 ms. Remains : 41/43 places, 120/120 transitions.
Stuttering acceptance computed with spot in 280 ms :[(OR p0 (AND (NOT p1) (NOT p2))), (OR p0 (AND (NOT p1) (NOT p2))), true, (NOT p2), (AND (NOT p3) p0), (NOT p3)]
Running random walk in product with property : Dekker-PT-010-LTLFireability-15 automaton TGBA Formula[mat=[[{ cond=true, acceptance={} source=0 dest: 1}], [{ cond=p0, acceptance={} source=1 dest: 2}, { cond=(AND (NOT p0) (NOT p1)), acceptance={} source=1 dest: 3}, { cond=(NOT p0), acceptance={} source=1 dest: 4}], [{ cond=true, acceptance={0} source=2 dest: 2}], [{ cond=(NOT p2), acceptance={} source=3 dest: 2}, { cond=p2, acceptance={} source=3 dest: 3}], [{ cond=(AND (NOT p0) (NOT p3)), acceptance={} source=4 dest: 4}, { cond=(AND p0 (NOT p3)), acceptance={} source=4 dest: 5}], [{ cond=(NOT p3), acceptance={0} source=5 dest: 5}]], initial=0, aps=[p0:(AND (EQ s7 1) (EQ s11 1) (EQ s26 1)), p1:(AND (EQ s16 1) (EQ s36 1)), p2:(OR (EQ s7 0) (EQ s11 0) (EQ s26 0)), p3:(AND (EQ s1 1) (EQ s7 1) (EQ s20 1))...], 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, null][false, false, false, false, false, false]]
Entered a terminal (fully accepting) state of product in 231 steps with 9 reset in 1 ms.
FORMULA Dekker-PT-010-LTLFireability-15 FALSE TECHNIQUES STUTTER_TEST
Treatment of property Dekker-PT-010-LTLFireability-15 finished in 441 ms.
All properties solved by simple procedures.
Total runtime 11875 ms.

BK_STOP 1678256724580

--------------------
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="Dekker-PT-010"
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 Dekker-PT-010, 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 r133-smll-167819409900004"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/Dekker-PT-010.tgz
mv Dekker-PT-010 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 ;