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.r229-tall-167856412800140.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)
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=====================================================================
Generated by BenchKit 2-5348
Executing tool itstools
Input is JoinFreeModules-PT-0003, examination is LTLFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r229-tall-167856412800140
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 404K
-rw-r--r-- 1 mcc users 5.6K Feb 25 11:54 CTLCardinality.txt
-rw-r--r-- 1 mcc users 56K Feb 25 11:54 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.0K Feb 25 11:54 CTLFireability.txt
-rw-r--r-- 1 mcc users 46K Feb 25 11:54 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Jan 29 11:40 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.1K Jan 29 11:40 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 3.7K Feb 25 16:17 LTLCardinality.txt
-rw-r--r-- 1 mcc users 26K Feb 25 16:17 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.3K Feb 25 16:17 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K Feb 25 16:17 LTLFireability.xml
-rw-r--r-- 1 mcc users 8.5K Feb 25 11:54 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 88K Feb 25 11:54 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 7.9K Feb 25 11:54 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 69K Feb 25 11:54 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K Feb 25 16:17 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K Feb 25 16:17 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 5 18:22 equiv_col
-rw-r--r-- 1 mcc users 5 Mar 5 18:22 instance
-rw-r--r-- 1 mcc users 6 Mar 5 18:22 iscolored
-rw-r--r-- 1 mcc users 9.4K 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 JoinFreeModules-PT-0003-LTLFireability-00
FORMULA_NAME JoinFreeModules-PT-0003-LTLFireability-01
FORMULA_NAME JoinFreeModules-PT-0003-LTLFireability-02
FORMULA_NAME JoinFreeModules-PT-0003-LTLFireability-03
FORMULA_NAME JoinFreeModules-PT-0003-LTLFireability-04
FORMULA_NAME JoinFreeModules-PT-0003-LTLFireability-05
FORMULA_NAME JoinFreeModules-PT-0003-LTLFireability-06
FORMULA_NAME JoinFreeModules-PT-0003-LTLFireability-07
FORMULA_NAME JoinFreeModules-PT-0003-LTLFireability-08
FORMULA_NAME JoinFreeModules-PT-0003-LTLFireability-09
FORMULA_NAME JoinFreeModules-PT-0003-LTLFireability-10
FORMULA_NAME JoinFreeModules-PT-0003-LTLFireability-11
FORMULA_NAME JoinFreeModules-PT-0003-LTLFireability-12
FORMULA_NAME JoinFreeModules-PT-0003-LTLFireability-13
FORMULA_NAME JoinFreeModules-PT-0003-LTLFireability-14
FORMULA_NAME JoinFreeModules-PT-0003-LTLFireability-15

=== Now, execution of the tool begins

BK_START 1679443019554

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=JoinFreeModules-PT-0003
Not applying reductions.
Model is PT
LTLFireability PT
Running Version 202303021504
[2023-03-21 23:57:00] [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]
[2023-03-21 23:57:00] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2023-03-21 23:57:01] [INFO ] Load time of PNML (sax parser for PT used): 22 ms
[2023-03-21 23:57:01] [INFO ] Transformed 16 places.
[2023-03-21 23:57:01] [INFO ] Transformed 25 transitions.
[2023-03-21 23:57:01] [INFO ] Parsed PT model containing 16 places and 25 transitions and 71 arcs in 95 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 6 formulas.
Reduce places removed 1 places and 0 transitions.
FORMULA JoinFreeModules-PT-0003-LTLFireability-02 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA JoinFreeModules-PT-0003-LTLFireability-03 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA JoinFreeModules-PT-0003-LTLFireability-06 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA JoinFreeModules-PT-0003-LTLFireability-07 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA JoinFreeModules-PT-0003-LTLFireability-08 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA JoinFreeModules-PT-0003-LTLFireability-09 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Support contains 13 out of 15 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 15/15 places, 25/25 transitions.
Applied a total of 0 rules in 8 ms. Remains 15 /15 variables (removed 0) and now considering 25/25 (removed 0) transitions.
// Phase 1: matrix 25 rows 15 cols
[2023-03-21 23:57:01] [INFO ] Computed 3 place invariants in 4 ms
[2023-03-21 23:57:01] [INFO ] Dead Transitions using invariants and state equation in 118 ms found 0 transitions.
[2023-03-21 23:57:01] [INFO ] Invariant cache hit.
[2023-03-21 23:57:01] [INFO ] Implicit Places using invariants in 25 ms returned []
[2023-03-21 23:57:01] [INFO ] Invariant cache hit.
[2023-03-21 23:57:01] [INFO ] State equation strengthened by 3 read => feed constraints.
[2023-03-21 23:57:01] [INFO ] Implicit Places using invariants and state equation in 35 ms returned []
Implicit Place search using SMT with State Equation took 61 ms to find 0 implicit places.
[2023-03-21 23:57:01] [INFO ] Invariant cache hit.
[2023-03-21 23:57:01] [INFO ] Dead Transitions using invariants and state equation in 37 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 254 ms. Remains : 15/15 places, 25/25 transitions.
Support contains 13 out of 15 places after structural reductions.
[2023-03-21 23:57:01] [INFO ] Flatten gal took : 15 ms
[2023-03-21 23:57:01] [INFO ] Flatten gal took : 4 ms
[2023-03-21 23:57:01] [INFO ] Input system was already deterministic with 25 transitions.
Finished random walk after 135 steps, including 0 resets, run visited all 19 properties in 21 ms. (steps per millisecond=6 )
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)||X(G((p1 U p2))))))'
Support contains 3 out of 15 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 15/15 places, 25/25 transitions.
Applied a total of 0 rules in 1 ms. Remains 15 /15 variables (removed 0) and now considering 25/25 (removed 0) transitions.
[2023-03-21 23:57:02] [INFO ] Invariant cache hit.
[2023-03-21 23:57:02] [INFO ] Dead Transitions using invariants and state equation in 33 ms found 0 transitions.
[2023-03-21 23:57:02] [INFO ] Invariant cache hit.
[2023-03-21 23:57:02] [INFO ] Implicit Places using invariants in 17 ms returned []
[2023-03-21 23:57:02] [INFO ] Invariant cache hit.
[2023-03-21 23:57:02] [INFO ] State equation strengthened by 3 read => feed constraints.
[2023-03-21 23:57:02] [INFO ] Implicit Places using invariants and state equation in 28 ms returned []
Implicit Place search using SMT with State Equation took 47 ms to find 0 implicit places.
[2023-03-21 23:57:02] [INFO ] Invariant cache hit.
[2023-03-21 23:57:02] [INFO ] Dead Transitions using invariants and state equation in 25 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 108 ms. Remains : 15/15 places, 25/25 transitions.
Stuttering acceptance computed with spot in 407 ms :[(AND (NOT p0) (NOT p2)), (AND (NOT p0) (NOT p2)), (NOT p2), (AND (NOT p0) (NOT p2)), true, (NOT p2), (NOT p0)]
Running random walk in product with property : JoinFreeModules-PT-0003-LTLFireability-00 automaton TGBA Formula[mat=[[{ cond=true, acceptance={} source=0 dest: 1}], [{ cond=(NOT p0), acceptance={} source=1 dest: 2}, { cond=p0, acceptance={} source=1 dest: 3}], [{ cond=(OR p2 p1), acceptance={} source=2 dest: 2}, { cond=(AND (NOT p2) (NOT p1)), acceptance={} source=2 dest: 4}, { cond=(AND (NOT p2) p1), acceptance={} source=2 dest: 5}], [{ cond=(OR (AND (NOT p0) p2) (AND (NOT p0) p1)), acceptance={} source=3 dest: 2}, { cond=(OR (AND p0 p2) (AND p0 p1)), acceptance={} source=3 dest: 3}, { cond=(AND (NOT p0) (NOT p2) (NOT p1)), acceptance={} source=3 dest: 4}, { cond=(AND (NOT p0) (NOT p2) p1), acceptance={} source=3 dest: 5}, { cond=(AND p0 (NOT p2) (NOT p1)), acceptance={} source=3 dest: 6}], [{ cond=true, acceptance={0} source=4 dest: 4}], [{ cond=(AND (NOT p2) (NOT p1)), acceptance={0} source=5 dest: 4}, { cond=(AND (NOT p2) p1), acceptance={0} source=5 dest: 5}], [{ cond=(NOT p0), acceptance={} source=6 dest: 4}, { cond=p0, acceptance={} source=6 dest: 6}]], initial=0, aps=[p0:(GEQ s14 5), p2:(LT s9 5), p1:(GEQ s10 3)], 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, null][false, false, false, false, false, false, false]]
Entered a terminal (fully accepting) state of product in 93 steps with 0 reset in 5 ms.
FORMULA JoinFreeModules-PT-0003-LTLFireability-00 FALSE TECHNIQUES STUTTER_TEST
Treatment of property JoinFreeModules-PT-0003-LTLFireability-00 finished in 585 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((G(p0)||G(p1)))&&(p1 U (G(p1)||(p1&&G(p2)))))))'
Support contains 3 out of 15 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 15/15 places, 25/25 transitions.
Applied a total of 0 rules in 8 ms. Remains 15 /15 variables (removed 0) and now considering 25/25 (removed 0) transitions.
[2023-03-21 23:57:02] [INFO ] Invariant cache hit.
[2023-03-21 23:57:02] [INFO ] Dead Transitions using invariants and state equation in 36 ms found 0 transitions.
[2023-03-21 23:57:02] [INFO ] Invariant cache hit.
[2023-03-21 23:57:02] [INFO ] Implicit Places using invariants in 21 ms returned []
[2023-03-21 23:57:02] [INFO ] Invariant cache hit.
[2023-03-21 23:57:02] [INFO ] State equation strengthened by 3 read => feed constraints.
[2023-03-21 23:57:02] [INFO ] Implicit Places using invariants and state equation in 27 ms returned []
Implicit Place search using SMT with State Equation took 50 ms to find 0 implicit places.
[2023-03-21 23:57:02] [INFO ] Redundant transitions in 0 ms returned []
[2023-03-21 23:57:02] [INFO ] Invariant cache hit.
[2023-03-21 23:57:02] [INFO ] Dead Transitions using invariants and state equation in 28 ms found 0 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 131 ms. Remains : 15/15 places, 25/25 transitions.
Stuttering acceptance computed with spot in 174 ms :[(NOT p1), (AND (NOT p1) (NOT p0)), (NOT p1), (AND (NOT p1) (NOT p2))]
Running random walk in product with property : JoinFreeModules-PT-0003-LTLFireability-01 automaton TGBA Formula[mat=[[{ cond=true, acceptance={} source=0 dest: 1}, { cond=(OR (NOT p1) (NOT p2)), acceptance={} source=0 dest: 2}, { cond=(AND p1 p2), acceptance={} source=0 dest: 3}], [{ cond=(AND p0 p1), acceptance={} source=1 dest: 1}, { cond=(AND (NOT p0) p1), acceptance={0} source=1 dest: 1}, { cond=(AND p0 (NOT p1)), acceptance={1} source=1 dest: 1}, { cond=(AND (NOT p0) (NOT p1)), acceptance={0, 1} source=1 dest: 1}], [{ cond=(AND p1 (NOT p2)), acceptance={1} source=2 dest: 2}, { cond=(NOT p1), acceptance={0, 1} source=2 dest: 2}, { cond=(AND p1 p2), acceptance={} source=2 dest: 3}], [{ cond=(AND p1 (NOT p2)), acceptance={1} source=3 dest: 2}, { cond=(AND (NOT p1) (NOT p2)), acceptance={0, 1} source=3 dest: 2}, { cond=(AND p1 p2), acceptance={} source=3 dest: 3}, { cond=(AND (NOT p1) p2), acceptance={0} source=3 dest: 3}]], initial=0, aps=[p1:(LT s8 4), p2:(LT s5 3), p0:(LT s12 1)], nbAcceptance=2, properties=[trans-labels, explicit-labels, trans-acc, complete, no-univ-branch, stutter-invariant], stateDesc=[null, null, null, null][true, true, true, true]]
Product exploration explored 100000 steps with 0 reset in 264 ms.
Stack based approach found an accepted trace after 367 steps with 0 reset with depth 368 and stack size 338 in 2 ms.
FORMULA JoinFreeModules-PT-0003-LTLFireability-01 FALSE TECHNIQUES STACK_TEST
Treatment of property JoinFreeModules-PT-0003-LTLFireability-01 finished in 593 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) U (p1&&X(X(p2))))))'
Support contains 4 out of 15 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 15/15 places, 25/25 transitions.
Applied a total of 0 rules in 1 ms. Remains 15 /15 variables (removed 0) and now considering 25/25 (removed 0) transitions.
[2023-03-21 23:57:03] [INFO ] Invariant cache hit.
[2023-03-21 23:57:03] [INFO ] Dead Transitions using invariants and state equation in 41 ms found 0 transitions.
[2023-03-21 23:57:03] [INFO ] Invariant cache hit.
[2023-03-21 23:57:03] [INFO ] Implicit Places using invariants in 19 ms returned []
[2023-03-21 23:57:03] [INFO ] Invariant cache hit.
[2023-03-21 23:57:03] [INFO ] State equation strengthened by 3 read => feed constraints.
[2023-03-21 23:57:03] [INFO ] Implicit Places using invariants and state equation in 29 ms returned []
Implicit Place search using SMT with State Equation took 49 ms to find 0 implicit places.
[2023-03-21 23:57:03] [INFO ] Invariant cache hit.
[2023-03-21 23:57:03] [INFO ] Dead Transitions using invariants and state equation in 31 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 127 ms. Remains : 15/15 places, 25/25 transitions.
Stuttering acceptance computed with spot in 410 ms :[(OR (NOT p1) (NOT p2)), (OR (NOT p1) (NOT p2)), true, p0, (NOT p2), (NOT p2), (NOT p2), (NOT p2), (AND p0 (NOT p2)), (NOT p2)]
Running random walk in product with property : JoinFreeModules-PT-0003-LTLFireability-04 automaton TGBA Formula[mat=[[{ cond=true, acceptance={} source=0 dest: 1}], [{ cond=(AND (NOT p1) (NOT p0)), acceptance={0} source=1 dest: 1}, { cond=(AND (NOT p1) p0), acceptance={0} source=1 dest: 2}, { cond=(AND (NOT p1) (NOT p0)), acceptance={0} source=1 dest: 3}, { cond=(AND p1 p0), acceptance={0} source=1 dest: 4}, { cond=(AND p1 (NOT p0)), acceptance={0} source=1 dest: 5}], [{ cond=true, acceptance={0} source=2 dest: 2}], [{ cond=p0, acceptance={} source=3 dest: 2}, { cond=(NOT p0), acceptance={} source=3 dest: 3}], [{ cond=true, acceptance={} source=4 dest: 6}], [{ cond=p0, acceptance={0} source=5 dest: 6}, { cond=(AND (NOT p1) (NOT p0)), acceptance={0} source=5 dest: 7}, { cond=(NOT p0), acceptance={0} source=5 dest: 8}, { cond=(AND p1 (NOT p0)), acceptance={0} source=5 dest: 9}], [{ cond=(NOT p2), acceptance={} source=6 dest: 2}], [{ cond=(AND (NOT p1) (NOT p0) (NOT p2)), acceptance={0} source=7 dest: 1}, { cond=(AND (NOT p1) p0 (NOT p2)), acceptance={0} source=7 dest: 2}, { cond=(AND (NOT p1) (NOT p0) (NOT p2)), acceptance={0} source=7 dest: 3}, { cond=(AND p1 p0 (NOT p2)), acceptance={0} source=7 dest: 4}, { cond=(AND p1 (NOT p0) (NOT p2)), acceptance={0} source=7 dest: 5}], [{ cond=(AND p0 (NOT p2)), acceptance={} source=8 dest: 2}, { cond=(AND (NOT p0) (NOT p2)), acceptance={} source=8 dest: 3}], [{ cond=(AND p0 (NOT p2)), acceptance={0} source=9 dest: 6}, { cond=(AND (NOT p1) (NOT p0) (NOT p2)), acceptance={0} source=9 dest: 7}, { cond=(AND (NOT p0) (NOT p2)), acceptance={0} source=9 dest: 8}, { cond=(AND p1 (NOT p0) (NOT p2)), acceptance={0} source=9 dest: 9}]], initial=0, aps=[p1:(GEQ s6 2), p0:(OR (AND (GEQ s6 2) (GEQ s5 5)) (LT s0 3)), p2:(GEQ s1 2)], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, no-univ-branch, stutter-sensitive, weak, inherently-weak], stateDesc=[null, null, null, null, null, null, null, null, null, null][false, false, false, false, false, false, false, false, false, false]]
Stuttering criterion allowed to conclude after 0 steps with 0 reset in 0 ms.
FORMULA JoinFreeModules-PT-0003-LTLFireability-04 FALSE TECHNIQUES STUTTER_TEST
Treatment of property JoinFreeModules-PT-0003-LTLFireability-04 finished in 562 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(p0)||F((p1&&((p2 U (p3||G(p2))) U ((F(p4)&&(p2 U (p3||G(p2))))||G((p2 U (p3||G(p2)))))))))))'
Support contains 5 out of 15 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 15/15 places, 25/25 transitions.
Applied a total of 0 rules in 0 ms. Remains 15 /15 variables (removed 0) and now considering 25/25 (removed 0) transitions.
[2023-03-21 23:57:03] [INFO ] Invariant cache hit.
[2023-03-21 23:57:03] [INFO ] Dead Transitions using invariants and state equation in 35 ms found 0 transitions.
[2023-03-21 23:57:03] [INFO ] Invariant cache hit.
[2023-03-21 23:57:03] [INFO ] Implicit Places using invariants in 23 ms returned []
[2023-03-21 23:57:03] [INFO ] Invariant cache hit.
[2023-03-21 23:57:03] [INFO ] State equation strengthened by 3 read => feed constraints.
[2023-03-21 23:57:03] [INFO ] Implicit Places using invariants and state equation in 28 ms returned []
Implicit Place search using SMT with State Equation took 52 ms to find 0 implicit places.
[2023-03-21 23:57:03] [INFO ] Invariant cache hit.
[2023-03-21 23:57:04] [INFO ] Dead Transitions using invariants and state equation in 27 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 117 ms. Remains : 15/15 places, 25/25 transitions.
Stuttering acceptance computed with spot in 456 ms :[(OR (AND (NOT p0) (NOT p2) (NOT p3)) (AND (NOT p0) (NOT p1))), (OR (AND (NOT p0) (NOT p2) (NOT p3)) (AND (NOT p0) (NOT p1))), (OR (AND (NOT p0) (NOT p2) (NOT p3)) (AND (NOT p0) (NOT p1))), (AND (NOT p0) (NOT p2) (NOT p3) (NOT p4)), (AND (NOT p0) (NOT p2) (NOT p3)), (OR (NOT p1) (AND (NOT p2) (NOT p3))), (AND (NOT p2) (NOT p3) (NOT p4)), (AND (NOT p2) (NOT p3)), (OR (AND (NOT p2) (NOT p3) (NOT p4)) (AND (NOT p1) (NOT p4)))]
Running random walk in product with property : JoinFreeModules-PT-0003-LTLFireability-05 automaton TGBA Formula[mat=[[{ cond=true, acceptance={} source=0 dest: 1}], [{ cond=(OR (AND (NOT p3) (NOT p2)) (NOT p1)), acceptance={} source=1 dest: 2}, { cond=(OR (AND p3 (NOT p4) p1) (AND p2 (NOT p4) p1)), acceptance={} source=1 dest: 3}, { cond=(AND (NOT p3) p2 p1), acceptance={} source=1 dest: 4}], [{ cond=(OR (AND (NOT p3) (NOT p2) (NOT p0)) (AND (NOT p1) (NOT p0))), acceptance={} source=2 dest: 5}, { cond=(OR (AND p3 (NOT p4) p1 (NOT p0)) (AND p2 (NOT p4) p1 (NOT p0))), acceptance={} source=2 dest: 6}, { cond=(AND (NOT p3) p2 p1 (NOT p0)), acceptance={} source=2 dest: 7}], [{ cond=(OR (AND p3 (NOT p4) (NOT p0)) (AND p2 (NOT p4) (NOT p0))), acceptance={} source=3 dest: 6}, { cond=(AND (NOT p3) (NOT p2) (NOT p4) (NOT p0)), acceptance={} source=3 dest: 8}], [{ cond=(AND (NOT p3) (NOT p2) (NOT p0)), acceptance={} source=4 dest: 5}, { cond=(AND (NOT p3) p2 (NOT p0)), acceptance={} source=4 dest: 7}], [{ cond=(OR (AND (NOT p3) (NOT p2)) (NOT p1)), acceptance={0} source=5 dest: 5}, { cond=(OR (AND p3 (NOT p4) p1) (AND p2 (NOT p4) p1)), acceptance={} source=5 dest: 6}, { cond=(AND (NOT p3) p2 p1), acceptance={} source=5 dest: 7}], [{ cond=(OR (AND p3 (NOT p4)) (AND p2 (NOT p4))), acceptance={} source=6 dest: 6}, { cond=(AND (NOT p3) (NOT p2) (NOT p4)), acceptance={0} source=6 dest: 8}], [{ cond=(AND (NOT p3) (NOT p2)), acceptance={0} source=7 dest: 5}, { cond=(AND (NOT p3) p2), acceptance={} source=7 dest: 7}], [{ cond=(OR (AND p3 (NOT p4) p1) (AND p2 (NOT p4) p1)), acceptance={} source=8 dest: 6}, { cond=(OR (AND (NOT p3) (NOT p2) (NOT p4)) (AND (NOT p4) (NOT p1))), acceptance={0} source=8 dest: 8}]], initial=0, aps=[p3:(AND (LT s14 5) (LT s2 1)), p2:(LT s2 1), p1:(GEQ s9 5), p4:(GEQ s13 4), p0:(GEQ s5 5)], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, no-univ-branch, stutter-sensitive], stateDesc=[null, null, null, null, null, null, null, null, null][false, false, false, false, false, false, false, false, false]]
Stuttering criterion allowed to conclude after 0 steps with 0 reset in 0 ms.
FORMULA JoinFreeModules-PT-0003-LTLFireability-05 FALSE TECHNIQUES STUTTER_TEST
Treatment of property JoinFreeModules-PT-0003-LTLFireability-05 finished in 606 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((F(G(!p0)) U p1))))'
Support contains 2 out of 15 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 15/15 places, 25/25 transitions.
Applied a total of 0 rules in 1 ms. Remains 15 /15 variables (removed 0) and now considering 25/25 (removed 0) transitions.
[2023-03-21 23:57:04] [INFO ] Invariant cache hit.
[2023-03-21 23:57:04] [INFO ] Dead Transitions using invariants and state equation in 38 ms found 0 transitions.
[2023-03-21 23:57:04] [INFO ] Invariant cache hit.
[2023-03-21 23:57:04] [INFO ] Implicit Places using invariants in 18 ms returned []
[2023-03-21 23:57:04] [INFO ] Invariant cache hit.
[2023-03-21 23:57:04] [INFO ] State equation strengthened by 3 read => feed constraints.
[2023-03-21 23:57:04] [INFO ] Implicit Places using invariants and state equation in 27 ms returned []
Implicit Place search using SMT with State Equation took 47 ms to find 0 implicit places.
[2023-03-21 23:57:04] [INFO ] Invariant cache hit.
[2023-03-21 23:57:04] [INFO ] Dead Transitions using invariants and state equation in 36 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 125 ms. Remains : 15/15 places, 25/25 transitions.
Stuttering acceptance computed with spot in 145 ms :[(NOT p1), (NOT p1), p0, (NOT p1)]
Running random walk in product with property : JoinFreeModules-PT-0003-LTLFireability-10 automaton TGBA Formula[mat=[[{ cond=true, acceptance={} source=0 dest: 1}], [{ cond=true, acceptance={} source=1 dest: 1}, { cond=(NOT p1), acceptance={} source=1 dest: 2}, { cond=(NOT p1), acceptance={} source=1 dest: 3}], [{ cond=(NOT p0), acceptance={} source=2 dest: 2}, { cond=p0, acceptance={0} source=2 dest: 2}], [{ cond=(NOT p1), acceptance={} source=3 dest: 2}, { cond=(NOT p1), acceptance={0} source=3 dest: 3}]], initial=0, aps=[p1:(GEQ s7 2), p0:(LT s5 3)], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, no-univ-branch, stutter-sensitive], stateDesc=[null, null, null, null][false, false, false, false]]
Product exploration explored 100000 steps with 0 reset in 158 ms.
Stack based approach found an accepted trace after 35 steps with 0 reset with depth 36 and stack size 36 in 0 ms.
FORMULA JoinFreeModules-PT-0003-LTLFireability-10 FALSE TECHNIQUES STACK_TEST
Treatment of property JoinFreeModules-PT-0003-LTLFireability-10 finished in 447 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&&X(F(p1))))))'
Support contains 2 out of 15 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 15/15 places, 25/25 transitions.
Applied a total of 0 rules in 1 ms. Remains 15 /15 variables (removed 0) and now considering 25/25 (removed 0) transitions.
[2023-03-21 23:57:04] [INFO ] Invariant cache hit.
[2023-03-21 23:57:04] [INFO ] Dead Transitions using invariants and state equation in 29 ms found 0 transitions.
[2023-03-21 23:57:04] [INFO ] Invariant cache hit.
[2023-03-21 23:57:04] [INFO ] Implicit Places using invariants in 16 ms returned []
[2023-03-21 23:57:04] [INFO ] Invariant cache hit.
[2023-03-21 23:57:05] [INFO ] State equation strengthened by 3 read => feed constraints.
[2023-03-21 23:57:05] [INFO ] Implicit Places using invariants and state equation in 23 ms returned []
Implicit Place search using SMT with State Equation took 40 ms to find 0 implicit places.
[2023-03-21 23:57:05] [INFO ] Invariant cache hit.
[2023-03-21 23:57:05] [INFO ] Dead Transitions using invariants and state equation in 24 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 95 ms. Remains : 15/15 places, 25/25 transitions.
Stuttering acceptance computed with spot in 113 ms :[(NOT p1), (OR (NOT p0) (NOT p1)), (OR (NOT p0) (NOT p1))]
Running random walk in product with property : JoinFreeModules-PT-0003-LTLFireability-11 automaton TGBA Formula[mat=[[{ cond=(NOT p1), acceptance={0} source=0 dest: 0}], [{ cond=true, acceptance={} source=1 dest: 2}], [{ cond=p0, acceptance={0} source=2 dest: 0}, { cond=(NOT p0), acceptance={0} source=2 dest: 2}]], initial=1, aps=[p1:(LT s0 3), p0:(LT s12 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]]
Stuttering criterion allowed to conclude after 0 steps with 0 reset in 0 ms.
FORMULA JoinFreeModules-PT-0003-LTLFireability-11 FALSE TECHNIQUES STUTTER_TEST
Treatment of property JoinFreeModules-PT-0003-LTLFireability-11 finished in 229 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 1 out of 15 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 15/15 places, 25/25 transitions.
Applied a total of 0 rules in 2 ms. Remains 15 /15 variables (removed 0) and now considering 25/25 (removed 0) transitions.
[2023-03-21 23:57:05] [INFO ] Invariant cache hit.
[2023-03-21 23:57:05] [INFO ] Dead Transitions using invariants and state equation in 33 ms found 0 transitions.
[2023-03-21 23:57:05] [INFO ] Invariant cache hit.
[2023-03-21 23:57:05] [INFO ] Implicit Places using invariants in 33 ms returned []
[2023-03-21 23:57:05] [INFO ] Invariant cache hit.
[2023-03-21 23:57:05] [INFO ] State equation strengthened by 3 read => feed constraints.
[2023-03-21 23:57:05] [INFO ] Implicit Places using invariants and state equation in 28 ms returned []
Implicit Place search using SMT with State Equation took 63 ms to find 0 implicit places.
[2023-03-21 23:57:05] [INFO ] Redundant transitions in 0 ms returned []
[2023-03-21 23:57:05] [INFO ] Invariant cache hit.
[2023-03-21 23:57:05] [INFO ] Dead Transitions using invariants and state equation in 26 ms found 0 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 133 ms. Remains : 15/15 places, 25/25 transitions.
Stuttering acceptance computed with spot in 32 ms :[(NOT p0)]
Running random walk in product with property : JoinFreeModules-PT-0003-LTLFireability-12 automaton TGBA Formula[mat=[[{ cond=(NOT p0), acceptance={0} source=0 dest: 0}]], initial=0, aps=[p0:(GEQ s13 4)], 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]]
Stuttering criterion allowed to conclude after 0 steps with 0 reset in 0 ms.
FORMULA JoinFreeModules-PT-0003-LTLFireability-12 FALSE TECHNIQUES STUTTER_TEST
Treatment of property JoinFreeModules-PT-0003-LTLFireability-12 finished in 180 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 1 out of 15 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 15/15 places, 25/25 transitions.
Applied a total of 0 rules in 2 ms. Remains 15 /15 variables (removed 0) and now considering 25/25 (removed 0) transitions.
[2023-03-21 23:57:05] [INFO ] Invariant cache hit.
[2023-03-21 23:57:05] [INFO ] Dead Transitions using invariants and state equation in 33 ms found 0 transitions.
[2023-03-21 23:57:05] [INFO ] Invariant cache hit.
[2023-03-21 23:57:05] [INFO ] Implicit Places using invariants in 20 ms returned []
[2023-03-21 23:57:05] [INFO ] Invariant cache hit.
[2023-03-21 23:57:05] [INFO ] State equation strengthened by 3 read => feed constraints.
[2023-03-21 23:57:05] [INFO ] Implicit Places using invariants and state equation in 28 ms returned []
Implicit Place search using SMT with State Equation took 52 ms to find 0 implicit places.
[2023-03-21 23:57:05] [INFO ] Redundant transitions in 0 ms returned []
[2023-03-21 23:57:05] [INFO ] Invariant cache hit.
[2023-03-21 23:57:05] [INFO ] Dead Transitions using invariants and state equation in 35 ms found 0 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 129 ms. Remains : 15/15 places, 25/25 transitions.
Stuttering acceptance computed with spot in 37 ms :[(NOT p0)]
Running random walk in product with property : JoinFreeModules-PT-0003-LTLFireability-13 automaton TGBA Formula[mat=[[{ cond=(NOT p0), acceptance={0} source=0 dest: 0}]], initial=0, aps=[p0:(GEQ s3 3)], 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]]
Stuttering criterion allowed to conclude after 0 steps with 0 reset in 0 ms.
FORMULA JoinFreeModules-PT-0003-LTLFireability-13 FALSE TECHNIQUES STUTTER_TEST
Treatment of property JoinFreeModules-PT-0003-LTLFireability-13 finished in 182 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 1 out of 15 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 15/15 places, 25/25 transitions.
Applied a total of 0 rules in 4 ms. Remains 15 /15 variables (removed 0) and now considering 25/25 (removed 0) transitions.
[2023-03-21 23:57:05] [INFO ] Invariant cache hit.
[2023-03-21 23:57:05] [INFO ] Dead Transitions using invariants and state equation in 29 ms found 0 transitions.
[2023-03-21 23:57:05] [INFO ] Invariant cache hit.
[2023-03-21 23:57:05] [INFO ] Implicit Places using invariants in 18 ms returned []
[2023-03-21 23:57:05] [INFO ] Invariant cache hit.
[2023-03-21 23:57:05] [INFO ] State equation strengthened by 3 read => feed constraints.
[2023-03-21 23:57:05] [INFO ] Implicit Places using invariants and state equation in 31 ms returned []
Implicit Place search using SMT with State Equation took 50 ms to find 0 implicit places.
[2023-03-21 23:57:05] [INFO ] Redundant transitions in 0 ms returned []
[2023-03-21 23:57:05] [INFO ] Invariant cache hit.
[2023-03-21 23:57:05] [INFO ] Dead Transitions using invariants and state equation in 26 ms found 0 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 121 ms. Remains : 15/15 places, 25/25 transitions.
Stuttering acceptance computed with spot in 84 ms :[(NOT p0), (NOT p0)]
Running random walk in product with property : JoinFreeModules-PT-0003-LTLFireability-14 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:(GEQ s13 3)], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, no-univ-branch, stutter-invariant, very-weak, weak, inherently-weak], stateDesc=[null, null][true, true]]
Stuttering criterion allowed to conclude after 0 steps with 0 reset in 0 ms.
FORMULA JoinFreeModules-PT-0003-LTLFireability-14 FALSE TECHNIQUES STUTTER_TEST
Treatment of property JoinFreeModules-PT-0003-LTLFireability-14 finished in 218 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 U p1))))'
Support contains 2 out of 15 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 15/15 places, 25/25 transitions.
Applied a total of 0 rules in 2 ms. Remains 15 /15 variables (removed 0) and now considering 25/25 (removed 0) transitions.
[2023-03-21 23:57:05] [INFO ] Invariant cache hit.
[2023-03-21 23:57:05] [INFO ] Dead Transitions using invariants and state equation in 32 ms found 0 transitions.
[2023-03-21 23:57:05] [INFO ] Invariant cache hit.
[2023-03-21 23:57:05] [INFO ] Implicit Places using invariants in 20 ms returned []
[2023-03-21 23:57:05] [INFO ] Invariant cache hit.
[2023-03-21 23:57:05] [INFO ] State equation strengthened by 3 read => feed constraints.
[2023-03-21 23:57:05] [INFO ] Implicit Places using invariants and state equation in 29 ms returned []
Implicit Place search using SMT with State Equation took 53 ms to find 0 implicit places.
[2023-03-21 23:57:05] [INFO ] Redundant transitions in 0 ms returned []
[2023-03-21 23:57:05] [INFO ] Invariant cache hit.
[2023-03-21 23:57:05] [INFO ] Dead Transitions using invariants and state equation in 25 ms found 0 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 116 ms. Remains : 15/15 places, 25/25 transitions.
Stuttering acceptance computed with spot in 98 ms :[(NOT p1), (NOT p1)]
Running random walk in product with property : JoinFreeModules-PT-0003-LTLFireability-15 automaton TGBA Formula[mat=[[{ cond=(OR p1 p0), acceptance={} source=0 dest: 0}, { cond=(AND (NOT p1) (NOT p0)), acceptance={0} source=0 dest: 0}, { cond=(AND (NOT p1) p0), acceptance={0} source=0 dest: 1}], [{ cond=(AND (NOT p1) (NOT p0)), acceptance={0} source=1 dest: 0}, { cond=(AND (NOT p1) p0), acceptance={0} source=1 dest: 1}]], initial=0, aps=[p1:(GEQ s3 4), p0:(GEQ s2 2)], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, no-univ-branch, stutter-invariant], stateDesc=[null, null][true, true]]
Stuttering criterion allowed to conclude after 0 steps with 0 reset in 0 ms.
FORMULA JoinFreeModules-PT-0003-LTLFireability-15 FALSE TECHNIQUES STUTTER_TEST
Treatment of property JoinFreeModules-PT-0003-LTLFireability-15 finished in 226 ms.
All properties solved by simple procedures.
Total runtime 5025 ms.

BK_STOP 1679443026835

--------------------
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="JoinFreeModules-PT-0003"
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 JoinFreeModules-PT-0003, 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 r229-tall-167856412800140"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/JoinFreeModules-PT-0003.tgz
mv JoinFreeModules-PT-0003 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 ;