Execution Chart

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

Trace from the execution

Formatting '/data/fkordon/mcc2021-input.r273-smll-162123879800172.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2021-input.qcow2 cluster_size=65536 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
........................................................................................................................................................................
=====================================================================
Generated by BenchKit 2-4028
Executing tool itstools
Input is TriangularGrid-PT-3026, examination is LTLCardinality
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r273-smll-162123879800172
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 484K
-rw-r--r-- 1 mcc users 18K May 5 16:58 CTLCardinality.txt
-rw-r--r-- 1 mcc users 143K May 10 09:44 CTLCardinality.xml
-rw-r--r-- 1 mcc users 13K May 5 16:58 CTLFireability.txt
-rw-r--r-- 1 mcc users 87K May 10 09:44 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K May 6 14:48 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.4K May 6 14:48 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 3.6K Apr 26 07:43 LTLCardinality.txt
-rw-r--r-- 1 mcc users 25K Apr 26 07:43 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.2K Apr 26 07:43 LTLFireability.txt
-rw-r--r-- 1 mcc users 17K Apr 26 07:43 LTLFireability.xml
-rw-r--r-- 1 mcc users 3.8K Mar 27 14:36 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 18K Mar 27 14:36 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 3.7K Mar 26 05:34 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 23K Mar 26 05:34 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.8K Mar 22 08:16 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.8K Mar 22 08:16 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 May 5 16:52 equiv_col
-rw-r--r-- 1 mcc users 5 May 5 16:52 instance
-rw-r--r-- 1 mcc users 6 May 5 16:52 iscolored
-rwxr-xr-x 1 mcc users 70K May 5 16:52 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 TriangularGrid-PT-3026-00
FORMULA_NAME TriangularGrid-PT-3026-01
FORMULA_NAME TriangularGrid-PT-3026-02
FORMULA_NAME TriangularGrid-PT-3026-03
FORMULA_NAME TriangularGrid-PT-3026-04
FORMULA_NAME TriangularGrid-PT-3026-05
FORMULA_NAME TriangularGrid-PT-3026-06
FORMULA_NAME TriangularGrid-PT-3026-07
FORMULA_NAME TriangularGrid-PT-3026-08
FORMULA_NAME TriangularGrid-PT-3026-09
FORMULA_NAME TriangularGrid-PT-3026-10
FORMULA_NAME TriangularGrid-PT-3026-11
FORMULA_NAME TriangularGrid-PT-3026-12
FORMULA_NAME TriangularGrid-PT-3026-13
FORMULA_NAME TriangularGrid-PT-3026-14
FORMULA_NAME TriangularGrid-PT-3026-15

=== Now, execution of the tool begins

BK_START 1621457188188

Running Version 0
[2021-05-19 20:46:31] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, LTLCardinality, -spotpath, /home/mcc/BenchKit/bin//..//ltlfilt, -z3path, /home/mcc/BenchKit/bin//..//z3/bin/z3, -yices2path, /home/mcc/BenchKit/bin//..//yices/bin/yices, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2021-05-19 20:46:31] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2021-05-19 20:46:31] [INFO ] Load time of PNML (sax parser for PT used): 90 ms
[2021-05-19 20:46:31] [INFO ] Transformed 108 places.
[2021-05-19 20:46:31] [INFO ] Transformed 90 transitions.
[2021-05-19 20:46:31] [INFO ] Parsed PT model containing 108 places and 90 transitions in 164 ms.
Parsed 16 properties from file /home/mcc/execution/LTLCardinality.xml in 17 ms.
Working with output stream class java.io.PrintStream
[2021-05-19 20:46:31] [INFO ] Initial state test concluded for 4 properties.
FORMULA TriangularGrid-PT-3026-09 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA TriangularGrid-PT-3026-11 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA TriangularGrid-PT-3026-05 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Support contains 35 out of 108 places. Attempting structural reductions.
Starting structural reductions, iteration 0 : 108/108 places, 90/90 transitions.
Applied a total of 0 rules in 22 ms. Remains 108 /108 variables (removed 0) and now considering 90/90 (removed 0) transitions.
// Phase 1: matrix 90 rows 108 cols
[2021-05-19 20:46:31] [INFO ] Computed 46 place invariants in 26 ms
[2021-05-19 20:46:32] [INFO ] Implicit Places using invariants in 282 ms returned []
// Phase 1: matrix 90 rows 108 cols
[2021-05-19 20:46:32] [INFO ] Computed 46 place invariants in 8 ms
[2021-05-19 20:46:32] [INFO ] Implicit Places using invariants and state equation in 181 ms returned []
Implicit Place search using SMT with State Equation took 510 ms to find 0 implicit places.
// Phase 1: matrix 90 rows 108 cols
[2021-05-19 20:46:32] [INFO ] Computed 46 place invariants in 8 ms
[2021-05-19 20:46:32] [INFO ] Dead Transitions using invariants and state equation in 160 ms returned []
Finished structural reductions, in 1 iterations. Remains : 108/108 places, 90/90 transitions.
[2021-05-19 20:46:32] [INFO ] Initial state reduction rules for LTL removed 3 formulas.
[2021-05-19 20:46:32] [INFO ] Flatten gal took : 82 ms
FORMULA TriangularGrid-PT-3026-12 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA TriangularGrid-PT-3026-06 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA TriangularGrid-PT-3026-01 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
[2021-05-19 20:46:32] [INFO ] Flatten gal took : 32 ms
[2021-05-19 20:46:32] [INFO ] Input system was already deterministic with 90 transitions.
Incomplete random walk after 100000 steps, including 25 resets, run finished after 709 ms. (steps per millisecond=141 ) properties (out of 19) seen :15
Running SMT prover for 4 properties.
// Phase 1: matrix 90 rows 108 cols
[2021-05-19 20:46:33] [INFO ] Computed 46 place invariants in 2 ms
[2021-05-19 20:46:33] [INFO ] [Real]Absence check using 45 positive place invariants in 10 ms returned unsat
[2021-05-19 20:46:33] [INFO ] [Real]Absence check using 45 positive place invariants in 13 ms returned unsat
[2021-05-19 20:46:33] [INFO ] [Real]Absence check using 45 positive place invariants in 11 ms returned unsat
[2021-05-19 20:46:33] [INFO ] [Real]Absence check using 45 positive place invariants in 18 ms returned unsat
Successfully simplified 4 atomic propositions for a total of 10 simplifications.
[2021-05-19 20:46:33] [INFO ] Initial state test concluded for 1 properties.
FORMULA TriangularGrid-PT-3026-10 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Running Spot : CommandLine [args=[/home/mcc/BenchKit/bin//..//ltl2tgba, --hoaf=tv, -f, !(F(G(p0)))], workingDir=/home/mcc/execution]
Support contains 2 out of 108 places. Attempting structural reductions.
Starting structural reductions, iteration 0 : 108/108 places, 90/90 transitions.
Applied a total of 0 rules in 24 ms. Remains 108 /108 variables (removed 0) and now considering 90/90 (removed 0) transitions.
// Phase 1: matrix 90 rows 108 cols
[2021-05-19 20:46:33] [INFO ] Computed 46 place invariants in 5 ms
[2021-05-19 20:46:34] [INFO ] Implicit Places using invariants in 173 ms returned []
// Phase 1: matrix 90 rows 108 cols
[2021-05-19 20:46:34] [INFO ] Computed 46 place invariants in 3 ms
[2021-05-19 20:46:34] [INFO ] Implicit Places using invariants and state equation in 258 ms returned []
Implicit Place search using SMT with State Equation took 434 ms to find 0 implicit places.
[2021-05-19 20:46:34] [INFO ] Redundant transitions in 4 ms returned []
// Phase 1: matrix 90 rows 108 cols
[2021-05-19 20:46:34] [INFO ] Computed 46 place invariants in 3 ms
[2021-05-19 20:46:34] [INFO ] Dead Transitions using invariants and state equation in 161 ms returned []
Finished structural reductions, in 1 iterations. Remains : 108/108 places, 90/90 transitions.
Stuttering acceptance computed with spot in 339 ms :[(NOT p0)]
Running random walk in product with property : TriangularGrid-PT-3026-00 automaton TGBA [mat=[[{ cond=(NOT p0), acceptance={0} source=0 dest: 0}, { cond=p0, acceptance={} source=0 dest: 0}]], initial=0, aps=[p0:(LEQ s75 s33)], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, complete, deterministic, no-univ-branch, unambiguous, semi-deterministic, stutter-invariant], stateDesc=[null][true]]
Stuttering criterion allowed to conclude after 49426 steps with 14 reset in 642 ms.
FORMULA TriangularGrid-PT-3026-00 FALSE TECHNIQUES STUTTER_TEST
Treatment of property TriangularGrid-PT-3026-00 finished in 1703 ms.
Running Spot : CommandLine [args=[/home/mcc/BenchKit/bin//..//ltl2tgba, --hoaf=tv, -f, !(X(X(X(G((X(G((p1||X(G(p2)))))&&p0))))))], workingDir=/home/mcc/execution]
Support contains 4 out of 108 places. Attempting structural reductions.
Starting structural reductions, iteration 0 : 108/108 places, 90/90 transitions.
Applied a total of 0 rules in 8 ms. Remains 108 /108 variables (removed 0) and now considering 90/90 (removed 0) transitions.
// Phase 1: matrix 90 rows 108 cols
[2021-05-19 20:46:35] [INFO ] Computed 46 place invariants in 3 ms
[2021-05-19 20:46:35] [INFO ] Implicit Places using invariants in 180 ms returned []
// Phase 1: matrix 90 rows 108 cols
[2021-05-19 20:46:35] [INFO ] Computed 46 place invariants in 4 ms
[2021-05-19 20:46:36] [INFO ] Implicit Places using invariants and state equation in 247 ms returned []
Implicit Place search using SMT with State Equation took 430 ms to find 0 implicit places.
// Phase 1: matrix 90 rows 108 cols
[2021-05-19 20:46:36] [INFO ] Computed 46 place invariants in 3 ms
[2021-05-19 20:46:36] [INFO ] Dead Transitions using invariants and state equation in 110 ms returned []
Finished structural reductions, in 1 iterations. Remains : 108/108 places, 90/90 transitions.
Stuttering acceptance computed with spot in 299 ms :[(OR (NOT p0) (NOT p2)), (OR (NOT p0) (AND (NOT p1) (NOT p2))), (OR (NOT p0) (AND (NOT p1) (NOT p2))), (OR (NOT p0) (AND (NOT p1) (NOT p2))), (OR (NOT p0) (AND (NOT p1) (NOT p2))), (OR (NOT p0) (AND (NOT p1) (NOT p2))), true]
Running random walk in product with property : TriangularGrid-PT-3026-02 automaton TGBA [mat=[[{ cond=(AND p0 p2), acceptance={} source=0 dest: 0}, { cond=(OR (NOT p0) (NOT p2)), acceptance={} source=0 dest: 6}], [{ cond=true, acceptance={} source=1 dest: 2}], [{ cond=p0, acceptance={} source=2 dest: 3}, { cond=(NOT p0), acceptance={} source=2 dest: 6}], [{ cond=(AND p0 (NOT p1)), acceptance={} source=3 dest: 0}, { cond=(AND p0 p1), acceptance={} source=3 dest: 3}, { cond=(NOT p0), acceptance={} source=3 dest: 6}], [{ cond=true, acceptance={} source=4 dest: 1}], [{ cond=true, acceptance={} source=5 dest: 4}], [{ cond=true, acceptance={0} source=6 dest: 6}]], initial=5, aps=[p0:(AND (GT s104 s29) (GT 1 s26)), p2:(LEQ s26 s51), p1:(AND (GT s104 s29) (GT 1 s26))], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, complete, deterministic, no-univ-branch, unambiguous, semi-deterministic, terminal, 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 3 steps with 0 reset in 1 ms.
FORMULA TriangularGrid-PT-3026-02 FALSE TECHNIQUES STUTTER_TEST
Treatment of property TriangularGrid-PT-3026-02 finished in 878 ms.
Running Spot : CommandLine [args=[/home/mcc/BenchKit/bin//..//ltl2tgba, --hoaf=tv, -f, !(G(p0))], workingDir=/home/mcc/execution]
Support contains 1 out of 108 places. Attempting structural reductions.
Starting structural reductions, iteration 0 : 108/108 places, 90/90 transitions.
Applied a total of 0 rules in 9 ms. Remains 108 /108 variables (removed 0) and now considering 90/90 (removed 0) transitions.
// Phase 1: matrix 90 rows 108 cols
[2021-05-19 20:46:36] [INFO ] Computed 46 place invariants in 2 ms
[2021-05-19 20:46:36] [INFO ] Implicit Places using invariants in 97 ms returned []
// Phase 1: matrix 90 rows 108 cols
[2021-05-19 20:46:36] [INFO ] Computed 46 place invariants in 4 ms
[2021-05-19 20:46:36] [INFO ] Implicit Places using invariants and state equation in 147 ms returned []
Implicit Place search using SMT with State Equation took 246 ms to find 0 implicit places.
[2021-05-19 20:46:36] [INFO ] Redundant transitions in 2 ms returned []
// Phase 1: matrix 90 rows 108 cols
[2021-05-19 20:46:36] [INFO ] Computed 46 place invariants in 2 ms
[2021-05-19 20:46:36] [INFO ] Dead Transitions using invariants and state equation in 83 ms returned []
Finished structural reductions, in 1 iterations. Remains : 108/108 places, 90/90 transitions.
Stuttering acceptance computed with spot in 63 ms :[true, (NOT p0)]
Running random walk in product with property : TriangularGrid-PT-3026-03 automaton TGBA [mat=[[{ cond=true, acceptance={0} source=0 dest: 0}], [{ cond=(NOT p0), acceptance={} source=1 dest: 0}, { cond=p0, acceptance={} source=1 dest: 1}]], initial=1, aps=[p0:(LEQ 3 s27)], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, complete, deterministic, no-univ-branch, unambiguous, semi-deterministic, stutter-invariant, terminal, very-weak, weak, inherently-weak], stateDesc=[null, null][true, true]]
Entered a terminal (fully accepting) state of product in 7593 steps with 2 reset in 84 ms.
FORMULA TriangularGrid-PT-3026-03 FALSE TECHNIQUES STUTTER_TEST
Treatment of property TriangularGrid-PT-3026-03 finished in 509 ms.
Running Spot : CommandLine [args=[/home/mcc/BenchKit/bin//..//ltl2tgba, --hoaf=tv, -f, !(F(G(p0)))], workingDir=/home/mcc/execution]
Support contains 3 out of 108 places. Attempting structural reductions.
Starting structural reductions, iteration 0 : 108/108 places, 90/90 transitions.
Applied a total of 0 rules in 13 ms. Remains 108 /108 variables (removed 0) and now considering 90/90 (removed 0) transitions.
// Phase 1: matrix 90 rows 108 cols
[2021-05-19 20:46:36] [INFO ] Computed 46 place invariants in 4 ms
[2021-05-19 20:46:37] [INFO ] Implicit Places using invariants in 163 ms returned []
// Phase 1: matrix 90 rows 108 cols
[2021-05-19 20:46:37] [INFO ] Computed 46 place invariants in 4 ms
[2021-05-19 20:46:37] [INFO ] Implicit Places using invariants and state equation in 245 ms returned []
Implicit Place search using SMT with State Equation took 422 ms to find 0 implicit places.
[2021-05-19 20:46:37] [INFO ] Redundant transitions in 3 ms returned []
// Phase 1: matrix 90 rows 108 cols
[2021-05-19 20:46:37] [INFO ] Computed 46 place invariants in 3 ms
[2021-05-19 20:46:37] [INFO ] Dead Transitions using invariants and state equation in 144 ms returned []
Finished structural reductions, in 1 iterations. Remains : 108/108 places, 90/90 transitions.
Stuttering acceptance computed with spot in 52 ms :[(NOT p0)]
Running random walk in product with property : TriangularGrid-PT-3026-04 automaton TGBA [mat=[[{ cond=(NOT p0), acceptance={0} source=0 dest: 0}, { cond=p0, acceptance={} source=0 dest: 0}]], initial=0, aps=[p0:(OR (GT 1 s7) (GT s38 s101))], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, complete, deterministic, no-univ-branch, unambiguous, semi-deterministic, stutter-invariant], stateDesc=[null][true]]
Stuttering criterion allowed to conclude after 13144 steps with 3 reset in 151 ms.
FORMULA TriangularGrid-PT-3026-04 FALSE TECHNIQUES STUTTER_TEST
Treatment of property TriangularGrid-PT-3026-04 finished in 828 ms.
Running Spot : CommandLine [args=[/home/mcc/BenchKit/bin//..//ltl2tgba, --hoaf=tv, -f, !(G((F(G(p0))&&F(p1))))], workingDir=/home/mcc/execution]
Support contains 4 out of 108 places. Attempting structural reductions.
Starting structural reductions, iteration 0 : 108/108 places, 90/90 transitions.
Applied a total of 0 rules in 12 ms. Remains 108 /108 variables (removed 0) and now considering 90/90 (removed 0) transitions.
// Phase 1: matrix 90 rows 108 cols
[2021-05-19 20:46:37] [INFO ] Computed 46 place invariants in 1 ms
[2021-05-19 20:46:37] [INFO ] Implicit Places using invariants in 151 ms returned []
// Phase 1: matrix 90 rows 108 cols
[2021-05-19 20:46:37] [INFO ] Computed 46 place invariants in 2 ms
[2021-05-19 20:46:38] [INFO ] Implicit Places using invariants and state equation in 226 ms returned []
Implicit Place search using SMT with State Equation took 378 ms to find 0 implicit places.
[2021-05-19 20:46:38] [INFO ] Redundant transitions in 4 ms returned []
// Phase 1: matrix 90 rows 108 cols
[2021-05-19 20:46:38] [INFO ] Computed 46 place invariants in 2 ms
[2021-05-19 20:46:38] [INFO ] Dead Transitions using invariants and state equation in 130 ms returned []
Finished structural reductions, in 1 iterations. Remains : 108/108 places, 90/90 transitions.
Stuttering acceptance computed with spot in 143 ms :[(OR (NOT p0) (NOT p1)), (NOT p0), (NOT p1)]
Running random walk in product with property : TriangularGrid-PT-3026-07 automaton TGBA [mat=[[{ cond=true, acceptance={} source=0 dest: 0}, { cond=(NOT p0), acceptance={} source=0 dest: 1}, { cond=(NOT p1), acceptance={} source=0 dest: 2}], [{ cond=(NOT p0), acceptance={0} source=1 dest: 1}, { cond=p0, acceptance={} source=1 dest: 1}], [{ cond=(NOT p1), acceptance={0} source=2 dest: 2}]], initial=0, aps=[p0:(LEQ s107 s37), p1:(LEQ s22 s8)], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, no-univ-branch, stutter-invariant], stateDesc=[null, null, null][true, true, true]]
Stuttering criterion allowed to conclude after 11133 steps with 1 reset in 98 ms.
FORMULA TriangularGrid-PT-3026-07 FALSE TECHNIQUES STUTTER_TEST
Treatment of property TriangularGrid-PT-3026-07 finished in 794 ms.
Running Spot : CommandLine [args=[/home/mcc/BenchKit/bin//..//ltl2tgba, --hoaf=tv, -f, !(G(p0))], workingDir=/home/mcc/execution]
Support contains 1 out of 108 places. Attempting structural reductions.
Starting structural reductions, iteration 0 : 108/108 places, 90/90 transitions.
Applied a total of 0 rules in 12 ms. Remains 108 /108 variables (removed 0) and now considering 90/90 (removed 0) transitions.
// Phase 1: matrix 90 rows 108 cols
[2021-05-19 20:46:38] [INFO ] Computed 46 place invariants in 1 ms
[2021-05-19 20:46:38] [INFO ] Implicit Places using invariants in 178 ms returned []
// Phase 1: matrix 90 rows 108 cols
[2021-05-19 20:46:38] [INFO ] Computed 46 place invariants in 2 ms
[2021-05-19 20:46:38] [INFO ] Implicit Places using invariants and state equation in 209 ms returned []
Implicit Place search using SMT with State Equation took 389 ms to find 0 implicit places.
[2021-05-19 20:46:38] [INFO ] Redundant transitions in 3 ms returned []
// Phase 1: matrix 90 rows 108 cols
[2021-05-19 20:46:38] [INFO ] Computed 46 place invariants in 1 ms
[2021-05-19 20:46:39] [INFO ] Dead Transitions using invariants and state equation in 140 ms returned []
Finished structural reductions, in 1 iterations. Remains : 108/108 places, 90/90 transitions.
Stuttering acceptance computed with spot in 59 ms :[true, (NOT p0)]
Running random walk in product with property : TriangularGrid-PT-3026-08 automaton TGBA [mat=[[{ cond=true, acceptance={0} source=0 dest: 0}], [{ cond=(NOT p0), acceptance={} source=1 dest: 0}, { cond=p0, acceptance={} source=1 dest: 1}]], initial=1, aps=[p0:(GT 1 s43)], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, complete, deterministic, no-univ-branch, unambiguous, semi-deterministic, stutter-invariant, terminal, very-weak, weak, inherently-weak], stateDesc=[null, null][true, true]]
Entered a terminal (fully accepting) state of product in 5 steps with 0 reset in 0 ms.
FORMULA TriangularGrid-PT-3026-08 FALSE TECHNIQUES STUTTER_TEST
Treatment of property TriangularGrid-PT-3026-08 finished in 628 ms.
Running Spot : CommandLine [args=[/home/mcc/BenchKit/bin//..//ltl2tgba, --hoaf=tv, -f, !(X(F(p0)))], workingDir=/home/mcc/execution]
Support contains 1 out of 108 places. Attempting structural reductions.
Starting structural reductions, iteration 0 : 108/108 places, 90/90 transitions.
Applied a total of 0 rules in 7 ms. Remains 108 /108 variables (removed 0) and now considering 90/90 (removed 0) transitions.
// Phase 1: matrix 90 rows 108 cols
[2021-05-19 20:46:39] [INFO ] Computed 46 place invariants in 1 ms
[2021-05-19 20:46:39] [INFO ] Implicit Places using invariants in 157 ms returned []
// Phase 1: matrix 90 rows 108 cols
[2021-05-19 20:46:39] [INFO ] Computed 46 place invariants in 1 ms
[2021-05-19 20:46:39] [INFO ] Implicit Places using invariants and state equation in 258 ms returned []
Implicit Place search using SMT with State Equation took 419 ms to find 0 implicit places.
// Phase 1: matrix 90 rows 108 cols
[2021-05-19 20:46:39] [INFO ] Computed 46 place invariants in 1 ms
[2021-05-19 20:46:39] [INFO ] Dead Transitions using invariants and state equation in 112 ms returned []
Finished structural reductions, in 1 iterations. Remains : 108/108 places, 90/90 transitions.
Stuttering acceptance computed with spot in 178 ms :[(NOT p0), (NOT p0)]
Running random walk in product with property : TriangularGrid-PT-3026-13 automaton TGBA [mat=[[{ cond=true, acceptance={} source=0 dest: 1}], [{ cond=(NOT p0), acceptance={0} source=1 dest: 1}]], initial=0, aps=[p0:(GT 1 s59)], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, deterministic, no-univ-branch, unambiguous, semi-deterministic, very-weak, weak, inherently-weak], stateDesc=[null, null][false, false]]
Product exploration explored 100000 steps with 3012 reset in 970 ms.
Product exploration explored 100000 steps with 3040 reset in 921 ms.
Knowledge obtained : [(NOT p0)]
Stuttering acceptance computed with spot in 94 ms :[(NOT p0), (NOT p0)]
Product exploration explored 100000 steps with 3118 reset in 694 ms.
Product exploration explored 100000 steps with 3076 reset in 899 ms.
Applying partial POR strategy [false, true]
Stuttering acceptance computed with spot in 59 ms :[(NOT p0), (NOT p0)]
Support contains 1 out of 108 places. Attempting structural reductions.
Property had overlarge support with respect to TGBA, discarding it for now.
Starting structural reductions, iteration 0 : 108/108 places, 90/90 transitions.
Applied a total of 0 rules in 6 ms. Remains 108 /108 variables (removed 0) and now considering 90/90 (removed 0) transitions.
[2021-05-19 20:46:43] [INFO ] Redundant transitions in 2 ms returned []
// Phase 1: matrix 90 rows 108 cols
[2021-05-19 20:46:43] [INFO ] Computed 46 place invariants in 1 ms
[2021-05-19 20:46:43] [INFO ] Dead Transitions using invariants and state equation in 76 ms returned []
Finished structural reductions, in 1 iterations. Remains : 108/108 places, 90/90 transitions.
Product exploration explored 100000 steps with 3029 reset in 947 ms.
Product exploration explored 100000 steps with 3100 reset in 688 ms.
[2021-05-19 20:46:45] [INFO ] Flatten gal took : 13 ms
[2021-05-19 20:46:45] [INFO ] Flatten gal took : 13 ms
[2021-05-19 20:46:45] [INFO ] Time to serialize gal into /tmp/LTL18351603408986802335.gal : 5 ms
[2021-05-19 20:46:45] [INFO ] Time to serialize properties into /tmp/LTL1327346123679335014.ltl : 1 ms
Invoking ITS tools like this :CommandLine [args=[/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202104292328/bin/its-ltl-linux64, --gc-threshold, 2000000, -i, /tmp/LTL18351603408986802335.gal, -t, CGAL, -LTL, /tmp/LTL1327346123679335014.ltl, -c, -stutter-deadlock, --gen-order, FOLLOW], workingDir=/home/mcc/execution]

its-ltl command run as :

/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202104292328/bin/its-ltl-linux64 --gc-threshold 2000000 -i /tmp/LTL18351603408986802335.gal -t CGAL -LTL /tmp/LTL1327346123679335014.ltl -c -stutter-deadlock --gen-order FOLLOW
Read 1 LTL properties
Checking formula 0 : !((X(F("(pil1_3_5<1)"))))
Formula 0 simplified : !XF"(pil1_3_5<1)"
Detected timeout of ITS tools.
[2021-05-19 20:47:00] [INFO ] Flatten gal took : 14 ms
[2021-05-19 20:47:00] [INFO ] Applying decomposition
[2021-05-19 20:47:00] [INFO ] Flatten gal took : 10 ms
Converted graph to binary with : CommandLine [args=[/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202104292328/bin/convert-linux64, -i, /tmp/graph7261663551800023431.txt, -o, /tmp/graph7261663551800023431.bin, -w, /tmp/graph7261663551800023431.weights], workingDir=null]
Built communities with : CommandLine [args=[/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202104292328/bin/louvain-linux64, /tmp/graph7261663551800023431.bin, -l, -1, -v, -w, /tmp/graph7261663551800023431.weights, -q, 0, -e, 0.001], workingDir=null]
[2021-05-19 20:47:00] [INFO ] Decomposing Gal with order
[2021-05-19 20:47:00] [INFO ] Rewriting arrays to variables to allow decomposition.
[2021-05-19 20:47:00] [INFO ] Removed a total of 54 redundant transitions.
[2021-05-19 20:47:00] [INFO ] Flatten gal took : 78 ms
[2021-05-19 20:47:00] [INFO ] Fuse similar labels procedure discarded/fused a total of 0 labels/synchronizations in 5 ms.
[2021-05-19 20:47:00] [INFO ] Time to serialize gal into /tmp/LTL11075788120486207102.gal : 12 ms
[2021-05-19 20:47:00] [INFO ] Time to serialize properties into /tmp/LTL13318795432160485099.ltl : 1 ms
Invoking ITS tools like this :CommandLine [args=[/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202104292328/bin/its-ltl-linux64, --gc-threshold, 2000000, -i, /tmp/LTL11075788120486207102.gal, -t, CGAL, -LTL, /tmp/LTL13318795432160485099.ltl, -c, -stutter-deadlock], workingDir=/home/mcc/execution]

its-ltl command run as :

/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202104292328/bin/its-ltl-linux64 --gc-threshold 2000000 -i /tmp/LTL11075788120486207102.gal -t CGAL -LTL /tmp/LTL13318795432160485099.ltl -c -stutter-deadlock
Read 1 LTL properties
Checking formula 0 : !((X(F("(i6.u11.pil1_3_5<1)"))))
Formula 0 simplified : !XF"(i6.u11.pil1_3_5<1)"
Reverse transition relation is NOT exact ! Due to transitions t65, t66, t68, t69, t70, t71, t73, t74, t76, t77, t78, t79, t81, t82, t83, t84, t86, t88, i0.t72, i0.t63, i6.t89, i6.t80, i7.t85, i7.t67, Intersection with reachable at each step enabled. (destroyed/reverse/intersect/total) :0/66/24/90
Detected timeout of ITS tools.
Built C files in :
/tmp/ltsmin7687076583952709562
[2021-05-19 20:47:16] [INFO ] Built C files in 9ms conformant to PINS (ltsmin variant)in folder :/tmp/ltsmin7687076583952709562
Running compilation step : CommandLine [args=[gcc, -c, -I/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.ltsmin.binaries_1.0.0.202104292328/bin/include/, -I., -std=c99, -fPIC, -O2, model.c], workingDir=/tmp/ltsmin7687076583952709562]
WARNING : LTS min runner thread failed on error :java.lang.RuntimeException: Compilation or link of executable timed out.java.util.concurrent.TimeoutException: Subprocess running CommandLine [args=[gcc, -c, -I/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.ltsmin.binaries_1.0.0.202104292328/bin/include/, -I., -std=c99, -fPIC, -O2, model.c], workingDir=/tmp/ltsmin7687076583952709562] killed by timeout after 1 SECONDS
java.lang.RuntimeException: Compilation or link of executable timed out.java.util.concurrent.TimeoutException: Subprocess running CommandLine [args=[gcc, -c, -I/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.ltsmin.binaries_1.0.0.202104292328/bin/include/, -I., -std=c99, -fPIC, -O2, model.c], workingDir=/tmp/ltsmin7687076583952709562] killed by timeout after 1 SECONDS
at fr.lip6.move.gal.application.LTSminRunner$1.run(LTSminRunner.java:79)
at java.base/java.lang.Thread.run(Thread.java:834)
Treatment of property TriangularGrid-PT-3026-13 finished in 37829 ms.
Running Spot : CommandLine [args=[/home/mcc/BenchKit/bin//..//ltl2tgba, --hoaf=tv, -f, !(G((F(p0)&&F(p1))))], workingDir=/home/mcc/execution]
Support contains 6 out of 108 places. Attempting structural reductions.
Starting structural reductions, iteration 0 : 108/108 places, 90/90 transitions.
Applied a total of 0 rules in 8 ms. Remains 108 /108 variables (removed 0) and now considering 90/90 (removed 0) transitions.
// Phase 1: matrix 90 rows 108 cols
[2021-05-19 20:47:17] [INFO ] Computed 46 place invariants in 1 ms
[2021-05-19 20:47:17] [INFO ] Implicit Places using invariants in 145 ms returned []
// Phase 1: matrix 90 rows 108 cols
[2021-05-19 20:47:17] [INFO ] Computed 46 place invariants in 1 ms
[2021-05-19 20:47:17] [INFO ] Implicit Places using invariants and state equation in 298 ms returned []
Implicit Place search using SMT with State Equation took 446 ms to find 0 implicit places.
[2021-05-19 20:47:17] [INFO ] Redundant transitions in 3 ms returned []
// Phase 1: matrix 90 rows 108 cols
[2021-05-19 20:47:17] [INFO ] Computed 46 place invariants in 1 ms
[2021-05-19 20:47:17] [INFO ] Dead Transitions using invariants and state equation in 138 ms returned []
Finished structural reductions, in 1 iterations. Remains : 108/108 places, 90/90 transitions.
Stuttering acceptance computed with spot in 141 ms :[(OR (NOT p0) (NOT p1)), (NOT p0), (NOT p1)]
Running random walk in product with property : TriangularGrid-PT-3026-14 automaton TGBA [mat=[[{ cond=true, acceptance={} source=0 dest: 0}, { cond=(NOT p0), acceptance={} source=0 dest: 1}, { cond=(NOT p1), acceptance={} source=0 dest: 2}], [{ cond=(NOT p0), acceptance={0} source=1 dest: 1}], [{ cond=(NOT p1), acceptance={0} source=2 dest: 2}]], initial=0, aps=[p0:(LEQ 1 s9), p1:(AND (LEQ s33 s74) (GT s70 s24) (LEQ 1 s12))], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, no-univ-branch, stutter-invariant, very-weak, weak, inherently-weak], stateDesc=[null, null, null][true, true, true]]
Stuttering criterion allowed to conclude after 6226 steps with 0 reset in 54 ms.
FORMULA TriangularGrid-PT-3026-14 FALSE TECHNIQUES STUTTER_TEST
Treatment of property TriangularGrid-PT-3026-14 finished in 818 ms.
Running Spot : CommandLine [args=[/home/mcc/BenchKit/bin//..//ltl2tgba, --hoaf=tv, -f, !(G(F((X(p1)&&p0))))], workingDir=/home/mcc/execution]
Support contains 2 out of 108 places. Attempting structural reductions.
Starting structural reductions, iteration 0 : 108/108 places, 90/90 transitions.
Applied a total of 0 rules in 3 ms. Remains 108 /108 variables (removed 0) and now considering 90/90 (removed 0) transitions.
// Phase 1: matrix 90 rows 108 cols
[2021-05-19 20:47:17] [INFO ] Computed 46 place invariants in 1 ms
[2021-05-19 20:47:18] [INFO ] Implicit Places using invariants in 175 ms returned []
// Phase 1: matrix 90 rows 108 cols
[2021-05-19 20:47:18] [INFO ] Computed 46 place invariants in 1 ms
[2021-05-19 20:47:18] [INFO ] Implicit Places using invariants and state equation in 243 ms returned []
Implicit Place search using SMT with State Equation took 420 ms to find 0 implicit places.
// Phase 1: matrix 90 rows 108 cols
[2021-05-19 20:47:18] [INFO ] Computed 46 place invariants in 2 ms
[2021-05-19 20:47:18] [INFO ] Dead Transitions using invariants and state equation in 151 ms returned []
Finished structural reductions, in 1 iterations. Remains : 108/108 places, 90/90 transitions.
Stuttering acceptance computed with spot in 146 ms :[(OR (NOT p0) (NOT p1)), (OR (NOT p1) (NOT p0)), (NOT p1)]
Running random walk in product with property : TriangularGrid-PT-3026-15 automaton TGBA [mat=[[{ cond=true, acceptance={} source=0 dest: 0}, { cond=(NOT p0), acceptance={} source=0 dest: 1}, { cond=p0, acceptance={} source=0 dest: 2}], [{ cond=(NOT p0), acceptance={0} source=1 dest: 1}, { cond=p0, acceptance={0} source=1 dest: 2}], [{ cond=(AND (NOT p0) (NOT p1)), acceptance={0} source=2 dest: 1}, { cond=(AND p0 (NOT p1)), acceptance={0} source=2 dest: 2}]], initial=0, aps=[p0:(AND (GT 1 s41) (GT 2 s1)), p1:(GT 1 s41)], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, no-univ-branch, weak, inherently-weak], stateDesc=[null, null, null][false, false, false]]
Stuttering criterion allowed to conclude after 5932 steps with 28 reset in 53 ms.
FORMULA TriangularGrid-PT-3026-15 FALSE TECHNIQUES STUTTER_TEST
Treatment of property TriangularGrid-PT-3026-15 finished in 797 ms.
Using solver Z3 to compute partial order matrices.
Built C files in :
/tmp/ltsmin2376074629875593162
[2021-05-19 20:47:18] [INFO ] Computing symmetric may disable matrix : 90 transitions.
[2021-05-19 20:47:18] [INFO ] Computation of Complete disable matrix. took 1 ms. Total solver calls (SAT/UNSAT): 0(0/0)
[2021-05-19 20:47:18] [INFO ] Computing symmetric may enable matrix : 90 transitions.
[2021-05-19 20:47:18] [INFO ] Computation of Complete enable matrix. took 0 ms. Total solver calls (SAT/UNSAT): 0(0/0)
[2021-05-19 20:47:18] [INFO ] Applying decomposition
[2021-05-19 20:47:18] [INFO ] Computing Do-Not-Accords matrix : 90 transitions.
[2021-05-19 20:47:18] [INFO ] Computation of Completed DNA matrix. took 4 ms. Total solver calls (SAT/UNSAT): 0(0/0)
[2021-05-19 20:47:18] [INFO ] Built C files in 18ms conformant to PINS (ltsmin variant)in folder :/tmp/ltsmin2376074629875593162
Running compilation step : CommandLine [args=[gcc, -c, -I/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.ltsmin.binaries_1.0.0.202104292328/bin/include/, -I., -std=c99, -fPIC, -O2, model.c], workingDir=/tmp/ltsmin2376074629875593162]
[2021-05-19 20:47:18] [INFO ] Flatten gal took : 15 ms
Converted graph to binary with : CommandLine [args=[/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202104292328/bin/convert-linux64, -i, /tmp/graph272359478019601505.txt, -o, /tmp/graph272359478019601505.bin, -w, /tmp/graph272359478019601505.weights], workingDir=null]
Built communities with : CommandLine [args=[/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202104292328/bin/louvain-linux64, /tmp/graph272359478019601505.bin, -l, -1, -v, -w, /tmp/graph272359478019601505.weights, -q, 0, -e, 0.001], workingDir=null]
[2021-05-19 20:47:18] [INFO ] Decomposing Gal with order
[2021-05-19 20:47:18] [INFO ] Rewriting arrays to variables to allow decomposition.
[2021-05-19 20:47:18] [INFO ] Removed a total of 54 redundant transitions.
[2021-05-19 20:47:18] [INFO ] Flatten gal took : 49 ms
[2021-05-19 20:47:18] [INFO ] Fuse similar labels procedure discarded/fused a total of 0 labels/synchronizations in 3 ms.
[2021-05-19 20:47:18] [INFO ] Time to serialize gal into /tmp/LTLCardinality13344579352575021902.gal : 6 ms
[2021-05-19 20:47:18] [INFO ] Time to serialize properties into /tmp/LTLCardinality15887477193917854155.ltl : 1 ms
Invoking ITS tools like this :CommandLine [args=[/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202104292328/bin/its-ltl-linux64, --gc-threshold, 2000000, -i, /tmp/LTLCardinality13344579352575021902.gal, -t, CGAL, -LTL, /tmp/LTLCardinality15887477193917854155.ltl, -c, -stutter-deadlock], workingDir=/home/mcc/execution]

its-ltl command run as :

/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202104292328/bin/its-ltl-linux64 --gc-threshold 2000000 -i /tmp/LTLCardinality13344579352575021902.gal -t CGAL -LTL /tmp/LTLCardinality15887477193917854155.ltl -c -stutter-deadlock
Read 1 LTL properties
Checking formula 0 : !((X((F("(i5.u24.pil1_3_5<1)"))&&(X(G("(i1.u28.po1_3_3<2)"))))))
Formula 0 simplified : !X(F"(i5.u24.pil1_3_5<1)" & XG"(i1.u28.po1_3_3<2)")
Compilation finished in 944 ms.
Running link step : CommandLine [args=[gcc, -shared, -o, gal.so, model.o], workingDir=/tmp/ltsmin2376074629875593162]
Link finished in 47 ms.
Running LTSmin : CommandLine [args=[/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.ltsmin.binaries_1.0.0.202104292328/bin/pins2lts-mc-linux64, ./gal.so, --threads=8, --when, --ltl, X(<>((LTLAPp0==true))), --buchi-type=spotba], workingDir=/tmp/ltsmin2376074629875593162]
LTSmin run took 649 ms.
FORMULA TriangularGrid-PT-3026-13 FALSE TECHNIQUES EXPLICIT LTSMIN SAT_SMT
ITS tools runner thread asked to quit. Dying gracefully.

BK_STOP 1621457241604

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

+ export BINDIR=/home/mcc/BenchKit/bin//../
+ BINDIR=/home/mcc/BenchKit/bin//../
++ pwd
+ export MODEL=/home/mcc/execution
+ MODEL=/home/mcc/execution
+ [[ LTLCardinality = StateSpace ]]
+ /home/mcc/BenchKit/bin//..//runeclipse.sh /home/mcc/execution LTLCardinality -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600
+ ulimit -s 65536
+ [[ -z '' ]]
+ export LTSMIN_MEM_SIZE=8589934592
+ LTSMIN_MEM_SIZE=8589934592
++ cut -d . -f 9
++ ls /home/mcc/BenchKit/bin//..//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202104292328.jar
+ VERSION=0
+ echo 'Running Version 0'
+ /home/mcc/BenchKit/bin//..//itstools/its-tools -data /home/mcc/execution/workspace -pnfolder /home/mcc/execution -examination LTLCardinality -spotpath /home/mcc/BenchKit/bin//..//ltlfilt -z3path /home/mcc/BenchKit/bin//..//z3/bin/z3 -yices2path /home/mcc/BenchKit/bin//..//yices/bin/yices -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600 -vmargs -Dosgi.locking=none -Declipse.stateSaveDelayInterval=-1 -Dosgi.configuration.area=/tmp/.eclipse -Xss128m -Xms40m -Xmx16000m

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="TriangularGrid-PT-3026"
export BK_EXAMINATION="LTLCardinality"
export BK_TOOL="itstools"
export BK_RESULT_DIR="/tmp/BK_RESULTS/OUTPUTS"
export BK_TIME_CONFINEMENT="3600"
export BK_MEMORY_CONFINEMENT="16384"
export BK_BIN_PATH="/home/mcc/BenchKit/bin/"

# this is specific to your benchmark or test

export BIN_DIR="$HOME/BenchKit/bin"

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

# this is for BenchKit: explicit launching of the test
echo "====================================================================="
echo " Generated by BenchKit 2-4028"
echo " Executing tool itstools"
echo " Input is TriangularGrid-PT-3026, examination is LTLCardinality"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r273-smll-162123879800172"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/TriangularGrid-PT-3026.tgz
mv TriangularGrid-PT-3026 execution
cd execution
if [ "LTLCardinality" = "ReachabilityDeadlock" ] || [ "LTLCardinality" = "UpperBounds" ] || [ "LTLCardinality" = "QuasiLiveness" ] || [ "LTLCardinality" = "StableMarking" ] || [ "LTLCardinality" = "Liveness" ] || [ "LTLCardinality" = "OneSafe" ] || [ "LTLCardinality" = "StateSpace" ]; then
rm -f GenericPropertiesVerdict.xml
fi
pwd
ls -lh

echo
echo "--------------------"
echo "content from stdout:"
echo
echo "=== Data for post analysis generated by BenchKit (invocation template)"
echo
if [ "LTLCardinality" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "LTLCardinality" != "StateSpace" ] ; then
echo "The expected result is a vector of booleans"
echo BOOL_VECTOR
else
echo "no data necessary for post analysis"
fi
echo
if [ -f "LTLCardinality.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property LTLCardinality.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "LTLCardinality.xml" ] ; then # for cunf (txt files deleted;-)
echo echo "here is the order used to build the result vector(from xml file)"
for x in $(grep '' LTLCardinality.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "LTLCardinality" = "ReachabilityDeadlock" ] || [ "LTLCardinality" = "QuasiLiveness" ] || [ "LTLCardinality" = "StableMarking" ] || [ "LTLCardinality" = "Liveness" ] || [ "LTLCardinality" = "OneSafe" ] ; then
echo "FORMULA_NAME LTLCardinality"
fi
echo
echo "=== Now, execution of the tool begins"
echo
echo -n "BK_START "
date -u +%s%3N
echo
timeout -s 9 $BK_TIME_CONFINEMENT bash -c "/home/mcc/BenchKit/BenchKit_head.sh 2> STDERR ; echo ; echo -n \"BK_STOP \" ; date -u +%s%3N"
if [ $? -eq 137 ] ; then
echo
echo "BK_TIME_CONFINEMENT_REACHED"
fi
echo
echo "--------------------"
echo "content from stderr:"
echo
cat STDERR ;