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.r169-tall-167838856100620.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 ltsminxred
Input is FunctionPointer-PT-a008, examination is LTLFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r169-tall-167838856100620
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 468K
-rw-r--r-- 1 mcc users 7.3K Feb 25 11:52 CTLCardinality.txt
-rw-r--r-- 1 mcc users 82K Feb 25 11:52 CTLCardinality.xml
-rw-r--r-- 1 mcc users 6.2K Feb 25 11:51 CTLFireability.txt
-rw-r--r-- 1 mcc users 62K Feb 25 11:51 CTLFireability.xml
-rw-r--r-- 1 mcc users 3.3K Feb 25 16:08 LTLCardinality.txt
-rw-r--r-- 1 mcc users 22K Feb 25 16:08 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.3K Feb 25 16:08 LTLFireability.txt
-rw-r--r-- 1 mcc users 17K Feb 25 16:08 LTLFireability.xml
-rw-r--r-- 1 mcc users 9.5K Feb 25 11:53 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 102K Feb 25 11:53 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 8.0K Feb 25 11:53 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 69K Feb 25 11:53 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K Feb 25 16:08 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K Feb 25 16:08 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 34K 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 FunctionPointer-PT-a008-LTLFireability-00
FORMULA_NAME FunctionPointer-PT-a008-LTLFireability-01
FORMULA_NAME FunctionPointer-PT-a008-LTLFireability-02
FORMULA_NAME FunctionPointer-PT-a008-LTLFireability-03
FORMULA_NAME FunctionPointer-PT-a008-LTLFireability-04
FORMULA_NAME FunctionPointer-PT-a008-LTLFireability-05
FORMULA_NAME FunctionPointer-PT-a008-LTLFireability-06
FORMULA_NAME FunctionPointer-PT-a008-LTLFireability-07
FORMULA_NAME FunctionPointer-PT-a008-LTLFireability-08
FORMULA_NAME FunctionPointer-PT-a008-LTLFireability-09
FORMULA_NAME FunctionPointer-PT-a008-LTLFireability-10
FORMULA_NAME FunctionPointer-PT-a008-LTLFireability-11
FORMULA_NAME FunctionPointer-PT-a008-LTLFireability-12
FORMULA_NAME FunctionPointer-PT-a008-LTLFireability-13
FORMULA_NAME FunctionPointer-PT-a008-LTLFireability-14
FORMULA_NAME FunctionPointer-PT-a008-LTLFireability-15

=== Now, execution of the tool begins

BK_START 1678591085516

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=ltsminxred
BK_EXAMINATION=LTLFireability
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=FunctionPointer-PT-a008
Applying reductions before tool ltsmin
Invoking reducer
Running Version 202303021504
[2023-03-12 03:18:07] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, LTLFireability, -timeout, 360, -rebuildPNML]
[2023-03-12 03:18:07] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2023-03-12 03:18:07] [INFO ] Load time of PNML (sax parser for PT used): 38 ms
[2023-03-12 03:18:07] [INFO ] Transformed 40 places.
[2023-03-12 03:18:07] [INFO ] Transformed 70 transitions.
[2023-03-12 03:18:07] [INFO ] Parsed PT model containing 40 places and 70 transitions and 284 arcs in 120 ms.
Parsed 16 properties from file /home/mcc/execution/LTLFireability.xml in 7 ms.
Working with output stream class java.io.PrintStream
Initial state reduction rules removed 4 formulas.
Deduced a syphon composed of 6 places in 0 ms
Reduce places removed 6 places and 4 transitions.
FORMULA FunctionPointer-PT-a008-LTLFireability-03 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA FunctionPointer-PT-a008-LTLFireability-05 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA FunctionPointer-PT-a008-LTLFireability-10 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA FunctionPointer-PT-a008-LTLFireability-13 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA FunctionPointer-PT-a008-LTLFireability-15 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA FunctionPointer-PT-a008-LTLFireability-14 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Support contains 19 out of 34 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 34/34 places, 66/66 transitions.
Reduce places removed 3 places and 0 transitions.
Iterating post reduction 0 with 3 rules applied. Total rules applied 3 place count 31 transition count 66
Applied a total of 3 rules in 11 ms. Remains 31 /34 variables (removed 3) and now considering 66/66 (removed 0) transitions.
[2023-03-12 03:18:07] [INFO ] Flow matrix only has 46 transitions (discarded 20 similar events)
// Phase 1: matrix 46 rows 31 cols
[2023-03-12 03:18:07] [INFO ] Computed 2 place invariants in 8 ms
[2023-03-12 03:18:07] [INFO ] Implicit Places using invariants in 146 ms returned []
[2023-03-12 03:18:07] [INFO ] Flow matrix only has 46 transitions (discarded 20 similar events)
[2023-03-12 03:18:07] [INFO ] Invariant cache hit.
[2023-03-12 03:18:07] [INFO ] State equation strengthened by 8 read => feed constraints.
[2023-03-12 03:18:07] [INFO ] Implicit Places using invariants and state equation in 53 ms returned []
Implicit Place search using SMT with State Equation took 225 ms to find 0 implicit places.
[2023-03-12 03:18:07] [INFO ] Flow matrix only has 46 transitions (discarded 20 similar events)
[2023-03-12 03:18:07] [INFO ] Invariant cache hit.
[2023-03-12 03:18:07] [INFO ] Dead Transitions using invariants and state equation in 49 ms found 0 transitions.
Starting structural reductions in LTL mode, iteration 1 : 31/34 places, 66/66 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 286 ms. Remains : 31/34 places, 66/66 transitions.
Support contains 19 out of 31 places after structural reductions.
[2023-03-12 03:18:08] [INFO ] Flatten gal took : 24 ms
[2023-03-12 03:18:08] [INFO ] Flatten gal took : 9 ms
[2023-03-12 03:18:08] [INFO ] Input system was already deterministic with 66 transitions.
Incomplete random walk after 10000 steps, including 32 resets, run finished after 106 ms. (steps per millisecond=94 ) properties (out of 17) seen :16
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 13 ms. (steps per millisecond=769 ) properties (out of 1) seen :0
Running SMT prover for 1 properties.
[2023-03-12 03:18:08] [INFO ] Flow matrix only has 46 transitions (discarded 20 similar events)
[2023-03-12 03:18:08] [INFO ] Invariant cache hit.
[2023-03-12 03:18:08] [INFO ] [Real]Absence check using 1 positive place invariants in 2 ms returned sat
[2023-03-12 03:18:08] [INFO ] [Real]Absence check using 1 positive and 1 generalized place invariants in 1 ms returned sat
[2023-03-12 03:18:08] [INFO ] After 49ms SMT Verify possible using all constraints in real domain returned unsat :1 sat :0
Fused 1 Parikh solutions to 0 different solutions.
Parikh walk visited 0 properties in 0 ms.
Successfully simplified 1 atomic propositions for a total of 10 simplifications.
FORMULA FunctionPointer-PT-a008-LTLFireability-02 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Computed a total of 3 stabilizing places and 8 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' '!((!p0 U X(X(G(((p2||G(!p3))&&p1))))))'
Support contains 5 out of 31 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 31/31 places, 66/66 transitions.
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 1 place count 30 transition count 64
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 30 transition count 64
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 0 with 2 rules applied. Total rules applied 4 place count 30 transition count 62
Applied a total of 4 rules in 4 ms. Remains 30 /31 variables (removed 1) and now considering 62/66 (removed 4) transitions.
[2023-03-12 03:18:08] [INFO ] Flow matrix only has 44 transitions (discarded 18 similar events)
// Phase 1: matrix 44 rows 30 cols
[2023-03-12 03:18:08] [INFO ] Computed 2 place invariants in 1 ms
[2023-03-12 03:18:08] [INFO ] Implicit Places using invariants in 48 ms returned []
[2023-03-12 03:18:08] [INFO ] Flow matrix only has 44 transitions (discarded 18 similar events)
[2023-03-12 03:18:08] [INFO ] Invariant cache hit.
[2023-03-12 03:18:08] [INFO ] State equation strengthened by 8 read => feed constraints.
[2023-03-12 03:18:08] [INFO ] Implicit Places using invariants and state equation in 60 ms returned []
Implicit Place search using SMT with State Equation took 110 ms to find 0 implicit places.
[2023-03-12 03:18:08] [INFO ] Flow matrix only has 44 transitions (discarded 18 similar events)
[2023-03-12 03:18:08] [INFO ] Invariant cache hit.
[2023-03-12 03:18:08] [INFO ] Dead Transitions using invariants and state equation in 48 ms found 0 transitions.
Starting structural reductions in LTL mode, iteration 1 : 30/31 places, 62/66 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 163 ms. Remains : 30/31 places, 62/66 transitions.
Stuttering acceptance computed with spot in 701 ms :[(OR (NOT p1) (AND (NOT p2) p3)), (OR (NOT p1) (AND (NOT p2) p3)), true, p3, (OR (NOT p1) (AND (NOT p2) p3)), (OR (AND (NOT p1) p3) (AND (NOT p2) p3)), (OR (AND (NOT p1) p3) (AND (NOT p2) p3)), (OR (AND (NOT p1) p3) (AND (NOT p2) p3))]
Running random walk in product with property : FunctionPointer-PT-a008-LTLFireability-00 automaton TGBA Formula[mat=[[{ cond=true, acceptance={} source=0 dest: 1}], [{ cond=(OR (AND p1 p2) (AND p1 (NOT p3))), acceptance={} source=1 dest: 1}, { cond=(OR (NOT p1) (AND (NOT p2) p3)), acceptance={} source=1 dest: 2}, { cond=(AND p1 (NOT p2) (NOT p3)), acceptance={} source=1 dest: 3}], [{ cond=true, acceptance={0, 1} source=2 dest: 2}], [{ cond=p3, acceptance={} source=3 dest: 2}, { cond=(NOT p3), acceptance={} source=3 dest: 3}], [{ cond=p0, acceptance={} source=4 dest: 0}, { cond=(OR (AND (NOT p0) p1 p2) (AND (NOT p0) p1 (NOT p3))), acceptance={0} source=4 dest: 4}, { cond=(OR (AND (NOT p0) (NOT p1)) (AND (NOT p0) (NOT p2) p3)), acceptance={0, 1} source=4 dest: 4}, { cond=(AND (NOT p0) p1 (NOT p2) (NOT p3)), acceptance={1} source=4 dest: 5}], [{ cond=(AND p0 p3), acceptance={} source=5 dest: 0}, { cond=(AND (NOT p0) p1 p2 p3), acceptance={0} source=5 dest: 4}, { cond=(OR (AND (NOT p0) (NOT p1) p3) (AND (NOT p0) (NOT p2) p3)), acceptance={0, 1} source=5 dest: 4}, { cond=(AND (NOT p0) p1 p2 (NOT p3)), acceptance={} source=5 dest: 5}, { cond=(OR (AND (NOT p0) (NOT p1) (NOT p3)) (AND (NOT p0) (NOT p2) (NOT p3))), acceptance={1} source=5 dest: 5}, { cond=(AND p0 (NOT p3)), acceptance={} source=5 dest: 6}], [{ cond=p3, acceptance={} source=6 dest: 1}, { cond=(NOT p3), acceptance={} source=6 dest: 7}], [{ cond=(AND p1 p2 p3), acceptance={} source=7 dest: 1}, { cond=(OR (AND (NOT p1) p3) (AND (NOT p2) p3)), acceptance={} source=7 dest: 2}, { cond=(OR (AND (NOT p1) (NOT p3)) (AND (NOT p2) (NOT p3))), acceptance={} source=7 dest: 3}, { cond=(AND p1 p2 (NOT p3)), acceptance={} source=7 dest: 7}]], initial=4, aps=[p1:(AND (GEQ s0 1) (GEQ s29 1)), p2:(GEQ s24 1), p3:(AND (GEQ s0 1) (GEQ s24 1)), p0:(AND (GEQ s1 1) (GEQ s6 1))], nbAcceptance=2, properties=[trans-labels, explicit-labels, trans-acc, complete, no-univ-branch, stutter-sensitive], stateDesc=[null, null, null, null, null, null, null, null][false, false, false, false, false, false, false, false]]
Entered a terminal (fully accepting) state of product in 4 steps with 0 reset in 3 ms.
FORMULA FunctionPointer-PT-a008-LTLFireability-00 FALSE TECHNIQUES STUTTER_TEST
Treatment of property FunctionPointer-PT-a008-LTLFireability-00 finished in 931 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 2 out of 31 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 31/31 places, 66/66 transitions.
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 1 place count 30 transition count 64
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 30 transition count 64
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 0 with 2 rules applied. Total rules applied 4 place count 30 transition count 62
Drop transitions removed 2 transitions
Redundant transition composition rules discarded 2 transitions
Iterating global reduction 1 with 2 rules applied. Total rules applied 6 place count 30 transition count 60
Applied a total of 6 rules in 21 ms. Remains 30 /31 variables (removed 1) and now considering 60/66 (removed 6) transitions.
[2023-03-12 03:18:09] [INFO ] Flow matrix only has 43 transitions (discarded 17 similar events)
// Phase 1: matrix 43 rows 30 cols
[2023-03-12 03:18:09] [INFO ] Computed 2 place invariants in 1 ms
[2023-03-12 03:18:09] [INFO ] Implicit Places using invariants in 34 ms returned []
[2023-03-12 03:18:09] [INFO ] Flow matrix only has 43 transitions (discarded 17 similar events)
[2023-03-12 03:18:09] [INFO ] Invariant cache hit.
[2023-03-12 03:18:09] [INFO ] State equation strengthened by 8 read => feed constraints.
[2023-03-12 03:18:09] [INFO ] Implicit Places using invariants and state equation in 59 ms returned []
Implicit Place search using SMT with State Equation took 94 ms to find 0 implicit places.
[2023-03-12 03:18:09] [INFO ] Redundant transitions in 1 ms returned []
[2023-03-12 03:18:09] [INFO ] Flow matrix only has 43 transitions (discarded 17 similar events)
[2023-03-12 03:18:09] [INFO ] Invariant cache hit.
[2023-03-12 03:18:09] [INFO ] Dead Transitions using invariants and state equation in 82 ms found 0 transitions.
Starting structural reductions in SI_LTL mode, iteration 1 : 30/31 places, 60/66 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 205 ms. Remains : 30/31 places, 60/66 transitions.
Stuttering acceptance computed with spot in 95 ms :[(NOT p0), (NOT p0)]
Running random walk in product with property : FunctionPointer-PT-a008-LTLFireability-01 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 (GEQ s1 1) (GEQ s14 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]]
Stuttering criterion allowed to conclude after 16 steps with 0 reset in 0 ms.
FORMULA FunctionPointer-PT-a008-LTLFireability-01 FALSE TECHNIQUES STUTTER_TEST
Treatment of property FunctionPointer-PT-a008-LTLFireability-01 finished in 324 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))'
Support contains 2 out of 31 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 31/31 places, 66/66 transitions.
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 1 place count 30 transition count 64
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 30 transition count 64
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 0 with 2 rules applied. Total rules applied 4 place count 30 transition count 62
Applied a total of 4 rules in 8 ms. Remains 30 /31 variables (removed 1) and now considering 62/66 (removed 4) transitions.
[2023-03-12 03:18:09] [INFO ] Flow matrix only has 44 transitions (discarded 18 similar events)
// Phase 1: matrix 44 rows 30 cols
[2023-03-12 03:18:09] [INFO ] Computed 2 place invariants in 3 ms
[2023-03-12 03:18:09] [INFO ] Implicit Places using invariants in 41 ms returned []
[2023-03-12 03:18:09] [INFO ] Flow matrix only has 44 transitions (discarded 18 similar events)
[2023-03-12 03:18:09] [INFO ] Invariant cache hit.
[2023-03-12 03:18:09] [INFO ] State equation strengthened by 8 read => feed constraints.
[2023-03-12 03:18:09] [INFO ] Implicit Places using invariants and state equation in 51 ms returned []
Implicit Place search using SMT with State Equation took 93 ms to find 0 implicit places.
[2023-03-12 03:18:09] [INFO ] Flow matrix only has 44 transitions (discarded 18 similar events)
[2023-03-12 03:18:09] [INFO ] Invariant cache hit.
[2023-03-12 03:18:09] [INFO ] Dead Transitions using invariants and state equation in 53 ms found 0 transitions.
Starting structural reductions in LTL mode, iteration 1 : 30/31 places, 62/66 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 166 ms. Remains : 30/31 places, 62/66 transitions.
Stuttering acceptance computed with spot in 92 ms :[(NOT p0), (NOT p0), true]
Running random walk in product with property : FunctionPointer-PT-a008-LTLFireability-04 automaton TGBA Formula[mat=[[{ cond=(NOT p0), acceptance={} source=0 dest: 2}], [{ cond=true, acceptance={} source=1 dest: 0}], [{ cond=true, acceptance={0} source=2 dest: 2}]], initial=1, aps=[p0:(AND (GEQ s0 1) (GEQ s12 1))], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, 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 FunctionPointer-PT-a008-LTLFireability-04 FALSE TECHNIQUES STUTTER_TEST
Treatment of property FunctionPointer-PT-a008-LTLFireability-04 finished in 279 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(X(p0)) U (p0||X(X(G(p1)))))))'
Support contains 7 out of 31 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 31/31 places, 66/66 transitions.
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 1 place count 30 transition count 64
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 30 transition count 64
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 0 with 2 rules applied. Total rules applied 4 place count 30 transition count 62
Applied a total of 4 rules in 6 ms. Remains 30 /31 variables (removed 1) and now considering 62/66 (removed 4) transitions.
[2023-03-12 03:18:10] [INFO ] Flow matrix only has 44 transitions (discarded 18 similar events)
[2023-03-12 03:18:10] [INFO ] Invariant cache hit.
[2023-03-12 03:18:10] [INFO ] Implicit Places using invariants in 52 ms returned []
[2023-03-12 03:18:10] [INFO ] Flow matrix only has 44 transitions (discarded 18 similar events)
[2023-03-12 03:18:10] [INFO ] Invariant cache hit.
[2023-03-12 03:18:10] [INFO ] State equation strengthened by 8 read => feed constraints.
[2023-03-12 03:18:10] [INFO ] Implicit Places using invariants and state equation in 53 ms returned []
Implicit Place search using SMT with State Equation took 107 ms to find 0 implicit places.
[2023-03-12 03:18:10] [INFO ] Flow matrix only has 44 transitions (discarded 18 similar events)
[2023-03-12 03:18:10] [INFO ] Invariant cache hit.
[2023-03-12 03:18:10] [INFO ] Dead Transitions using invariants and state equation in 39 ms found 0 transitions.
Starting structural reductions in LTL mode, iteration 1 : 30/31 places, 62/66 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 153 ms. Remains : 30/31 places, 62/66 transitions.
Stuttering acceptance computed with spot in 237 ms :[(AND (NOT p0) (NOT p1)), (AND (NOT p1) (NOT p0)), (AND (NOT p0) (NOT p1)), (AND (NOT p1) (NOT p0)), true, (NOT p1)]
Running random walk in product with property : FunctionPointer-PT-a008-LTLFireability-06 automaton TGBA Formula[mat=[[{ cond=true, acceptance={} source=0 dest: 2}], [{ cond=true, acceptance={} source=1 dest: 3}], [{ cond=(NOT p0), acceptance={} source=2 dest: 1}, { cond=(AND (NOT p0) p1), acceptance={} source=2 dest: 2}, { cond=(AND (NOT p0) (NOT p1)), acceptance={0} source=2 dest: 2}], [{ cond=(AND (NOT p0) (NOT p1)), acceptance={} source=3 dest: 4}, { cond=(AND (NOT p0) p1), acceptance={} source=3 dest: 5}], [{ cond=true, acceptance={0} source=4 dest: 4}], [{ cond=(NOT p1), acceptance={} source=5 dest: 4}, { cond=p1, acceptance={} source=5 dest: 5}]], initial=0, aps=[p0:(AND (GEQ s2 1) (GEQ s13 1)), p1:(OR (AND (GEQ s1 1) (GEQ s10 1) (GEQ s1 1) (GEQ s29 1)) (AND (GEQ s4 1) (GEQ s17 1)))], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, no-univ-branch, stutter-sensitive], stateDesc=[null, null, null, null, null, null][false, false, false, false, false, false]]
Entered a terminal (fully accepting) state of product in 3 steps with 0 reset in 0 ms.
FORMULA FunctionPointer-PT-a008-LTLFireability-06 FALSE TECHNIQUES STUTTER_TEST
Treatment of property FunctionPointer-PT-a008-LTLFireability-06 finished in 414 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 2 out of 31 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 31/31 places, 66/66 transitions.
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 1 place count 30 transition count 64
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 30 transition count 64
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 0 with 2 rules applied. Total rules applied 4 place count 30 transition count 62
Applied a total of 4 rules in 8 ms. Remains 30 /31 variables (removed 1) and now considering 62/66 (removed 4) transitions.
[2023-03-12 03:18:10] [INFO ] Flow matrix only has 44 transitions (discarded 18 similar events)
[2023-03-12 03:18:10] [INFO ] Invariant cache hit.
[2023-03-12 03:18:10] [INFO ] Implicit Places using invariants in 46 ms returned []
[2023-03-12 03:18:10] [INFO ] Flow matrix only has 44 transitions (discarded 18 similar events)
[2023-03-12 03:18:10] [INFO ] Invariant cache hit.
[2023-03-12 03:18:10] [INFO ] State equation strengthened by 8 read => feed constraints.
[2023-03-12 03:18:10] [INFO ] Implicit Places using invariants and state equation in 42 ms returned []
Implicit Place search using SMT with State Equation took 88 ms to find 0 implicit places.
[2023-03-12 03:18:10] [INFO ] Redundant transitions in 1 ms returned []
[2023-03-12 03:18:10] [INFO ] Flow matrix only has 44 transitions (discarded 18 similar events)
[2023-03-12 03:18:10] [INFO ] Invariant cache hit.
[2023-03-12 03:18:10] [INFO ] Dead Transitions using invariants and state equation in 41 ms found 0 transitions.
Starting structural reductions in SI_LTL mode, iteration 1 : 30/31 places, 62/66 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 147 ms. Remains : 30/31 places, 62/66 transitions.
Stuttering acceptance computed with spot in 58 ms :[(NOT p0)]
Running random walk in product with property : FunctionPointer-PT-a008-LTLFireability-07 automaton TGBA Formula[mat=[[{ cond=(NOT p0), acceptance={0} source=0 dest: 0}]], initial=0, aps=[p0:(AND (GEQ s1 1) (GEQ s20 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]]
Stuttering criterion allowed to conclude after 33 steps with 1 reset in 1 ms.
FORMULA FunctionPointer-PT-a008-LTLFireability-07 FALSE TECHNIQUES STUTTER_TEST
Treatment of property FunctionPointer-PT-a008-LTLFireability-07 finished in 227 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&&X(p0))))'
Support contains 2 out of 31 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 31/31 places, 66/66 transitions.
Drop transitions removed 2 transitions
Redundant transition composition rules discarded 2 transitions
Iterating global reduction 0 with 2 rules applied. Total rules applied 2 place count 31 transition count 64
Applied a total of 2 rules in 9 ms. Remains 31 /31 variables (removed 0) and now considering 64/66 (removed 2) transitions.
[2023-03-12 03:18:10] [INFO ] Flow matrix only has 45 transitions (discarded 19 similar events)
// Phase 1: matrix 45 rows 31 cols
[2023-03-12 03:18:10] [INFO ] Computed 2 place invariants in 1 ms
[2023-03-12 03:18:10] [INFO ] Implicit Places using invariants in 40 ms returned []
[2023-03-12 03:18:10] [INFO ] Flow matrix only has 45 transitions (discarded 19 similar events)
[2023-03-12 03:18:10] [INFO ] Invariant cache hit.
[2023-03-12 03:18:10] [INFO ] State equation strengthened by 8 read => feed constraints.
[2023-03-12 03:18:10] [INFO ] Implicit Places using invariants and state equation in 52 ms returned []
Implicit Place search using SMT with State Equation took 94 ms to find 0 implicit places.
[2023-03-12 03:18:10] [INFO ] Redundant transitions in 1 ms returned []
[2023-03-12 03:18:10] [INFO ] Flow matrix only has 45 transitions (discarded 19 similar events)
[2023-03-12 03:18:10] [INFO ] Invariant cache hit.
[2023-03-12 03:18:10] [INFO ] Dead Transitions using invariants and state equation in 41 ms found 0 transitions.
Starting structural reductions in SI_LTL mode, iteration 1 : 31/31 places, 64/66 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 151 ms. Remains : 31/31 places, 64/66 transitions.
Stuttering acceptance computed with spot in 89 ms :[true, (NOT p0)]
Running random walk in product with property : FunctionPointer-PT-a008-LTLFireability-08 automaton TGBA Formula[mat=[[{ cond=p0, acceptance={0} source=0 dest: 0}, { cond=(NOT p0), acceptance={0} source=0 dest: 1}], [{ cond=(NOT p0), acceptance={0} source=1 dest: 1}]], initial=0, aps=[p0:(AND (GEQ s0 1) (GEQ s16 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, null][true, true]]
Stuttering criterion allowed to conclude after 120 steps with 0 reset in 2 ms.
FORMULA FunctionPointer-PT-a008-LTLFireability-08 FALSE TECHNIQUES STUTTER_TEST
Treatment of property FunctionPointer-PT-a008-LTLFireability-08 finished in 255 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(p1)&&p0)))'
Support contains 4 out of 31 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 31/31 places, 66/66 transitions.
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 1 place count 30 transition count 64
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 30 transition count 64
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 0 with 2 rules applied. Total rules applied 4 place count 30 transition count 62
Drop transitions removed 2 transitions
Redundant transition composition rules discarded 2 transitions
Iterating global reduction 1 with 2 rules applied. Total rules applied 6 place count 30 transition count 60
Applied a total of 6 rules in 12 ms. Remains 30 /31 variables (removed 1) and now considering 60/66 (removed 6) transitions.
[2023-03-12 03:18:11] [INFO ] Flow matrix only has 43 transitions (discarded 17 similar events)
// Phase 1: matrix 43 rows 30 cols
[2023-03-12 03:18:11] [INFO ] Computed 2 place invariants in 1 ms
[2023-03-12 03:18:11] [INFO ] Implicit Places using invariants in 35 ms returned []
[2023-03-12 03:18:11] [INFO ] Flow matrix only has 43 transitions (discarded 17 similar events)
[2023-03-12 03:18:11] [INFO ] Invariant cache hit.
[2023-03-12 03:18:11] [INFO ] State equation strengthened by 8 read => feed constraints.
[2023-03-12 03:18:11] [INFO ] Implicit Places using invariants and state equation in 55 ms returned []
Implicit Place search using SMT with State Equation took 92 ms to find 0 implicit places.
[2023-03-12 03:18:11] [INFO ] Redundant transitions in 1 ms returned []
[2023-03-12 03:18:11] [INFO ] Flow matrix only has 43 transitions (discarded 17 similar events)
[2023-03-12 03:18:11] [INFO ] Invariant cache hit.
[2023-03-12 03:18:11] [INFO ] Dead Transitions using invariants and state equation in 43 ms found 0 transitions.
Starting structural reductions in SI_LTL mode, iteration 1 : 30/31 places, 60/66 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 159 ms. Remains : 30/31 places, 60/66 transitions.
Stuttering acceptance computed with spot in 88 ms :[(NOT p1), (OR (NOT p0) (NOT p1))]
Running random walk in product with property : FunctionPointer-PT-a008-LTLFireability-09 automaton TGBA Formula[mat=[[{ cond=(NOT p1), acceptance={0} source=0 dest: 0}], [{ cond=(AND p0 (NOT p1)), acceptance={0} source=1 dest: 0}, { cond=(NOT p0), acceptance={0} source=1 dest: 1}]], initial=1, aps=[p1:(AND (GEQ s1 1) (GEQ s6 1)), p0:(AND (GEQ s0 1) (GEQ 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, null][true, true]]
Stuttering criterion allowed to conclude after 22 steps with 0 reset in 0 ms.
FORMULA FunctionPointer-PT-a008-LTLFireability-09 FALSE TECHNIQUES STUTTER_TEST
Treatment of property FunctionPointer-PT-a008-LTLFireability-09 finished in 266 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 2 out of 31 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 31/31 places, 66/66 transitions.
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 1 place count 30 transition count 64
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 30 transition count 64
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 0 with 2 rules applied. Total rules applied 4 place count 30 transition count 62
Drop transitions removed 2 transitions
Redundant transition composition rules discarded 2 transitions
Iterating global reduction 1 with 2 rules applied. Total rules applied 6 place count 30 transition count 60
Applied a total of 6 rules in 9 ms. Remains 30 /31 variables (removed 1) and now considering 60/66 (removed 6) transitions.
[2023-03-12 03:18:11] [INFO ] Flow matrix only has 43 transitions (discarded 17 similar events)
[2023-03-12 03:18:11] [INFO ] Invariant cache hit.
[2023-03-12 03:18:11] [INFO ] Implicit Places using invariants in 35 ms returned []
[2023-03-12 03:18:11] [INFO ] Flow matrix only has 43 transitions (discarded 17 similar events)
[2023-03-12 03:18:11] [INFO ] Invariant cache hit.
[2023-03-12 03:18:11] [INFO ] State equation strengthened by 8 read => feed constraints.
[2023-03-12 03:18:11] [INFO ] Implicit Places using invariants and state equation in 44 ms returned []
Implicit Place search using SMT with State Equation took 81 ms to find 0 implicit places.
[2023-03-12 03:18:11] [INFO ] Redundant transitions in 1 ms returned []
[2023-03-12 03:18:11] [INFO ] Flow matrix only has 43 transitions (discarded 17 similar events)
[2023-03-12 03:18:11] [INFO ] Invariant cache hit.
[2023-03-12 03:18:11] [INFO ] Dead Transitions using invariants and state equation in 40 ms found 0 transitions.
Starting structural reductions in SI_LTL mode, iteration 1 : 30/31 places, 60/66 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 139 ms. Remains : 30/31 places, 60/66 transitions.
Stuttering acceptance computed with spot in 75 ms :[(NOT p0), (NOT p0)]
Running random walk in product with property : FunctionPointer-PT-a008-LTLFireability-11 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 (GEQ s1 1) (GEQ s26 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]]
Stuttering criterion allowed to conclude after 107 steps with 0 reset in 1 ms.
FORMULA FunctionPointer-PT-a008-LTLFireability-11 FALSE TECHNIQUES STUTTER_TEST
Treatment of property FunctionPointer-PT-a008-LTLFireability-11 finished in 234 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((X(p0)||G(p1)))||(F(!p1) U p2))))'
Support contains 5 out of 31 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 31/31 places, 66/66 transitions.
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 1 place count 30 transition count 64
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 30 transition count 64
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 0 with 2 rules applied. Total rules applied 4 place count 30 transition count 62
Drop transitions removed 2 transitions
Redundant transition composition rules discarded 2 transitions
Iterating global reduction 1 with 2 rules applied. Total rules applied 6 place count 30 transition count 60
Applied a total of 6 rules in 9 ms. Remains 30 /31 variables (removed 1) and now considering 60/66 (removed 6) transitions.
[2023-03-12 03:18:11] [INFO ] Flow matrix only has 43 transitions (discarded 17 similar events)
[2023-03-12 03:18:11] [INFO ] Invariant cache hit.
[2023-03-12 03:18:11] [INFO ] Implicit Places using invariants in 34 ms returned []
[2023-03-12 03:18:11] [INFO ] Flow matrix only has 43 transitions (discarded 17 similar events)
[2023-03-12 03:18:11] [INFO ] Invariant cache hit.
[2023-03-12 03:18:11] [INFO ] State equation strengthened by 8 read => feed constraints.
[2023-03-12 03:18:11] [INFO ] Implicit Places using invariants and state equation in 41 ms returned []
Implicit Place search using SMT with State Equation took 77 ms to find 0 implicit places.
[2023-03-12 03:18:11] [INFO ] Redundant transitions in 1 ms returned []
[2023-03-12 03:18:11] [INFO ] Flow matrix only has 43 transitions (discarded 17 similar events)
[2023-03-12 03:18:11] [INFO ] Invariant cache hit.
[2023-03-12 03:18:11] [INFO ] Dead Transitions using invariants and state equation in 37 ms found 0 transitions.
Starting structural reductions in SI_LTL mode, iteration 1 : 30/31 places, 60/66 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 129 ms. Remains : 30/31 places, 60/66 transitions.
Stuttering acceptance computed with spot in 104 ms :[(AND (NOT p1) (NOT p2) (NOT p0)), (AND (NOT p1) (NOT p2) (NOT p0))]
Running random walk in product with property : FunctionPointer-PT-a008-LTLFireability-12 automaton TGBA Formula[mat=[[{ cond=true, acceptance={} source=0 dest: 0}, { cond=(AND (NOT p1) (NOT p2)), acceptance={} source=0 dest: 1}], [{ cond=(AND p1 (NOT p2) (NOT p0)), acceptance={} source=1 dest: 1}, { cond=(AND (NOT p1) (NOT p2) (NOT p0)), acceptance={0} source=1 dest: 1}]], initial=0, aps=[p1:(AND (GEQ s1 1) (GEQ s12 1)), p2:(OR (AND (GEQ s1 1) (GEQ s10 1)) (AND (GEQ s5 1) (GEQ s18 1))), p0:(AND (GEQ s5 1) (GEQ s18 1))], 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 31 steps with 2 reset in 0 ms.
FORMULA FunctionPointer-PT-a008-LTLFireability-12 FALSE TECHNIQUES STUTTER_TEST
Treatment of property FunctionPointer-PT-a008-LTLFireability-12 finished in 259 ms.
All properties solved by simple procedures.
Total runtime 4416 ms.
ITS solved all properties within timeout

BK_STOP 1678591092745

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

+ 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//../reducer/bin//../../itstools//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202303021504.jar
+ VERSION=202303021504
+ echo 'Running Version 202303021504'
+ /home/mcc/BenchKit/bin//../reducer/bin//../../itstools//itstools/its-tools -pnfolder /home/mcc/execution -examination LTLFireability -timeout 360 -rebuildPNML

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="FunctionPointer-PT-a008"
export BK_EXAMINATION="LTLFireability"
export BK_TOOL="ltsminxred"
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 ltsminxred"
echo " Input is FunctionPointer-PT-a008, 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 r169-tall-167838856100620"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/FunctionPointer-PT-a008.tgz
mv FunctionPointer-PT-a008 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 ;