About the Execution of ITS-Tools for Sudoku-COL-AN12
| Execution Summary | |||||
| Max Memory Used (MB) |
Time wait (ms) | CPU Usage (ms) | I/O Wait (ms) | Computed Result | Execution Status |
| 786.407 | 203040.00 | 218886.00 | 1663.60 | TTTTFFTFTFFTTFFT | normal |
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.r485-tall-167912698900092.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 Sudoku-COL-AN12, examination is LTLFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r485-tall-167912698900092
=====================================================================
--------------------
preparation of the directory to be used:
/home/mcc/execution
total 472K
-rw-r--r-- 1 mcc users 8.4K Feb 26 09:22 CTLCardinality.txt
-rw-r--r-- 1 mcc users 94K Feb 26 09:22 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.3K Feb 26 08:47 CTLFireability.txt
-rw-r--r-- 1 mcc users 47K Feb 26 08:47 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Jan 29 11:41 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.6K Jan 29 11:41 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 3.7K Feb 25 17:16 LTLCardinality.txt
-rw-r--r-- 1 mcc users 27K Feb 25 17:16 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.2K Feb 25 17:16 LTLFireability.txt
-rw-r--r-- 1 mcc users 16K Feb 25 17:16 LTLFireability.xml
-rw-r--r-- 1 mcc users 12K Feb 26 10:13 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 120K Feb 26 10:13 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 8.1K Feb 26 09:26 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 66K Feb 26 09:26 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K Feb 25 17:16 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.6K Feb 25 17:16 UpperBounds.xml
-rw-r--r-- 1 mcc users 5 Mar 5 18:23 equiv_pt
-rw-r--r-- 1 mcc users 5 Mar 5 18:23 instance
-rw-r--r-- 1 mcc users 5 Mar 5 18:23 iscolored
-rw-r--r-- 1 mcc users 6.5K Mar 5 18:23 model.pnml
--------------------
content from stdout:
=== Data for post analysis generated by BenchKit (invocation template)
The expected result is a vector of booleans
BOOL_VECTOR
here is the order used to build the result vector(from text file)
FORMULA_NAME Sudoku-COL-AN12-LTLFireability-00
FORMULA_NAME Sudoku-COL-AN12-LTLFireability-01
FORMULA_NAME Sudoku-COL-AN12-LTLFireability-02
FORMULA_NAME Sudoku-COL-AN12-LTLFireability-03
FORMULA_NAME Sudoku-COL-AN12-LTLFireability-04
FORMULA_NAME Sudoku-COL-AN12-LTLFireability-05
FORMULA_NAME Sudoku-COL-AN12-LTLFireability-06
FORMULA_NAME Sudoku-COL-AN12-LTLFireability-07
FORMULA_NAME Sudoku-COL-AN12-LTLFireability-08
FORMULA_NAME Sudoku-COL-AN12-LTLFireability-09
FORMULA_NAME Sudoku-COL-AN12-LTLFireability-10
FORMULA_NAME Sudoku-COL-AN12-LTLFireability-11
FORMULA_NAME Sudoku-COL-AN12-LTLFireability-12
FORMULA_NAME Sudoku-COL-AN12-LTLFireability-13
FORMULA_NAME Sudoku-COL-AN12-LTLFireability-14
FORMULA_NAME Sudoku-COL-AN12-LTLFireability-15
=== Now, execution of the tool begins
BK_START 1679161704620
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=Sudoku-COL-AN12
Not applying reductions.
Model is COL
LTLFireability COL
Running Version 202303021504
[2023-03-18 17:48:26] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, LTLFireability, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2023-03-18 17:48:26] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2023-03-18 17:48:26] [INFO ] Detected file is not PT type :http://www.pnml.org/version-2009/grammar/symmetricnet
log4j:WARN No appenders could be found for logger (org.apache.axiom.locator.DefaultOMMetaFactoryLocator).
log4j:WARN Please initialize the log4j system properly.
log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.
[2023-03-18 17:48:26] [WARNING] Using fallBack plugin, rng conformance not checked
[2023-03-18 17:48:26] [INFO ] Load time of PNML (colored model parsed with PNMLFW) : 397 ms
[2023-03-18 17:48:26] [INFO ] Imported 4 HL places and 1 HL transitions for a total of 2160 PT places and 1728.0 transition bindings in 11 ms.
Parsed 16 properties from file /home/mcc/execution/LTLFireability.xml in 9 ms.
Working with output stream class java.io.PrintStream
[2023-03-18 17:48:26] [INFO ] Built PT skeleton of HLPN with 4 places and 1 transitions 4 arcs in 4 ms.
[2023-03-18 17:48:26] [INFO ] Skeletonized 16 HLPN properties in 1 ms.
Computed a total of 4 stabilizing places and 1 stable transitions
Complete graph has no SCC; deadlocks are unavoidable. place count 4 transition count 1
Detected that all paths lead to deadlock. Applying this knowledge to assert that all AP eventually converge (and all enablings converge to false).
All 16 properties of the HLPN use transition enablings in a way that makes the skeleton too coarse.
Domain [N(12), N(12)] of place Rows breaks symmetries in sort N
[2023-03-18 17:48:26] [INFO ] Unfolded HLPN to a Petri net with 2160 places and 1728 transitions 6912 arcs in 46 ms.
[2023-03-18 17:48:26] [INFO ] Unfolded 16 HLPN properties in 6 ms.
Initial state reduction rules removed 4 formulas.
FORMULA Sudoku-COL-AN12-LTLFireability-02 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA Sudoku-COL-AN12-LTLFireability-08 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA Sudoku-COL-AN12-LTLFireability-11 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA Sudoku-COL-AN12-LTLFireability-12 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Support contains 432 out of 2160 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 2160/2160 places, 1728/1728 transitions.
Reduce places removed 1728 places and 0 transitions.
Iterating post reduction 0 with 1728 rules applied. Total rules applied 1728 place count 432 transition count 1728
Applied a total of 1728 rules in 36 ms. Remains 432 /2160 variables (removed 1728) and now considering 1728/1728 (removed 0) transitions.
// Phase 1: matrix 1728 rows 432 cols
[2023-03-18 17:48:29] [INFO ] Computed 35 place invariants in 117 ms
[2023-03-18 17:48:29] [INFO ] Implicit Places using invariants in 331 ms returned []
[2023-03-18 17:48:29] [INFO ] Invariant cache hit.
[2023-03-18 17:48:30] [INFO ] Implicit Places using invariants and state equation in 562 ms returned []
Implicit Place search using SMT with State Equation took 918 ms to find 0 implicit places.
[2023-03-18 17:48:30] [INFO ] Invariant cache hit.
[2023-03-18 17:48:30] [INFO ] Dead Transitions using invariants and state equation in 562 ms found 0 transitions.
Starting structural reductions in LTL mode, iteration 1 : 432/2160 places, 1728/1728 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 1518 ms. Remains : 432/2160 places, 1728/1728 transitions.
Support contains 432 out of 432 places after structural reductions.
[2023-03-18 17:48:31] [INFO ] Flatten gal took : 392 ms
[2023-03-18 17:48:34] [INFO ] Flatten gal took : 387 ms
[2023-03-18 17:48:36] [INFO ] Input system was already deterministic with 1728 transitions.
Finished random walk after 126 steps, including 0 resets, run visited all 4 properties in 51 ms. (steps per millisecond=2 )
FORMULA Sudoku-COL-AN12-LTLFireability-05 FALSE TECHNIQUES REACHABILITY_KNOWLEDGE
Computed a total of 432 stabilizing places and 1728 stable transitions
Complete graph has no SCC; deadlocks are unavoidable. place count 432 transition count 1728
Detected that all paths lead to deadlock. Applying this knowledge to assert that all AP eventually converge (and all enablings converge to false).
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&&X(F(p0)))))'
Support contains 432 out of 432 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 432/432 places, 1728/1728 transitions.
Applied a total of 0 rules in 5 ms. Remains 432 /432 variables (removed 0) and now considering 1728/1728 (removed 0) transitions.
[2023-03-18 17:48:37] [INFO ] Invariant cache hit.
[2023-03-18 17:48:38] [INFO ] Implicit Places using invariants in 79 ms returned []
[2023-03-18 17:48:38] [INFO ] Invariant cache hit.
[2023-03-18 17:48:38] [INFO ] Implicit Places using invariants and state equation in 470 ms returned []
Implicit Place search using SMT with State Equation took 551 ms to find 0 implicit places.
[2023-03-18 17:48:38] [INFO ] Invariant cache hit.
[2023-03-18 17:48:39] [INFO ] Dead Transitions using invariants and state equation in 530 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 1087 ms. Remains : 432/432 places, 1728/1728 transitions.
Stuttering acceptance computed with spot in 236 ms :[(NOT p0), (NOT p0), (NOT p0), true]
Running random walk in product with property : Sudoku-COL-AN12-LTLFireability-00 automaton TGBA Formula[mat=[[{ cond=(NOT p0), acceptance={0} source=0 dest: 0}], [{ cond=p0, acceptance={} source=1 dest: 0}, { cond=(NOT p0), acceptance={} source=1 dest: 3}], [{ cond=true, acceptance={} source=2 dest: 1}], [{ cond=true, acceptance={0} source=3 dest: 3}]], initial=2, aps=[p0:(OR (AND (GEQ s72 1) (GEQ s220 1) (GEQ s336 1)) (AND (GEQ s61 1) (GEQ s207 1) (GEQ s325 1)) (AND (GEQ s82 1) (GEQ s226 1) (GEQ s418 1)) (AND (GEQ s103 ...], 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, null][false, false, false, false]]
Product exploration timeout after 50620 steps with 16873 reset in 10002 ms.
Product exploration timeout after 50890 steps with 16963 reset in 10002 ms.
Computed a total of 432 stabilizing places and 1728 stable transitions
Complete graph has no SCC; deadlocks are unavoidable. place count 432 transition count 1728
Detected that all paths lead to deadlock. Applying this knowledge to assert that all AP eventually converge (and all enablings converge to false).
Detected that all paths lead to deadlock. Applying this knowledge to assert that all AP eventually converge : F ( (Ga|G!a) & (Gb|G!b)...)
Knowledge obtained : [p0, (X p0), true, (X (X p0)), (F (G (NOT p0)))]
False Knowledge obtained : []
Property proved to be true thanks to knowledge :(X (X p0))
Knowledge based reduction with 5 factoid took 174 ms. Reduced automaton from 4 states, 5 edges and 1 AP (stutter sensitive) to 1 states, 0 edges and 0 AP (stutter insensitive).
FORMULA Sudoku-COL-AN12-LTLFireability-00 TRUE TECHNIQUES KNOWLEDGE
Treatment of property Sudoku-COL-AN12-LTLFireability-00 finished in 36183 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(G(p1))||p0)))'
Support contains 432 out of 432 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 432/432 places, 1728/1728 transitions.
Applied a total of 0 rules in 5 ms. Remains 432 /432 variables (removed 0) and now considering 1728/1728 (removed 0) transitions.
[2023-03-18 17:49:14] [INFO ] Invariant cache hit.
[2023-03-18 17:49:14] [INFO ] Implicit Places using invariants in 88 ms returned []
[2023-03-18 17:49:14] [INFO ] Invariant cache hit.
[2023-03-18 17:49:14] [INFO ] Implicit Places using invariants and state equation in 453 ms returned []
Implicit Place search using SMT with State Equation took 552 ms to find 0 implicit places.
[2023-03-18 17:49:14] [INFO ] Invariant cache hit.
[2023-03-18 17:49:15] [INFO ] Dead Transitions using invariants and state equation in 549 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 1109 ms. Remains : 432/432 places, 1728/1728 transitions.
Stuttering acceptance computed with spot in 116 ms :[true, (AND (NOT p0) (NOT p1)), (AND (NOT p0) (NOT p1)), (NOT p1)]
Running random walk in product with property : Sudoku-COL-AN12-LTLFireability-01 automaton TGBA Formula[mat=[[{ cond=true, acceptance={0} source=0 dest: 0}], [{ cond=true, acceptance={} source=1 dest: 2}], [{ cond=(NOT p0), acceptance={} source=2 dest: 3}], [{ cond=(NOT p1), acceptance={} source=3 dest: 0}, { cond=p1, acceptance={} source=3 dest: 3}]], initial=1, aps=[p0:(OR (AND (GEQ s72 1) (GEQ s220 1) (GEQ s336 1)) (AND (GEQ s61 1) (GEQ s207 1) (GEQ s325 1)) (AND (GEQ s82 1) (GEQ s226 1) (GEQ s418 1)) (AND (GEQ s103 ...], 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, null][false, false, false, false]]
Product exploration timeout after 66640 steps with 33320 reset in 10001 ms.
Product exploration timeout after 65850 steps with 32925 reset in 10002 ms.
Computed a total of 432 stabilizing places and 1728 stable transitions
Complete graph has no SCC; deadlocks are unavoidable. place count 432 transition count 1728
Detected that all paths lead to deadlock. Applying this knowledge to assert that all AP eventually converge (and all enablings converge to false).
Detected that all paths lead to deadlock. Applying this knowledge to assert that all AP eventually converge : F ( (Ga|G!a) & (Gb|G!b)...)
Knowledge obtained : [(AND p0 p1), (X p0), (X (X p1)), (F (G (NOT p0))), (F (G (NOT p1)))]
False Knowledge obtained : []
Property proved to be true thanks to knowledge :(X p0)
Knowledge based reduction with 5 factoid took 87 ms. Reduced automaton from 4 states, 5 edges and 2 AP (stutter sensitive) to 1 states, 0 edges and 0 AP (stutter insensitive).
FORMULA Sudoku-COL-AN12-LTLFireability-01 TRUE TECHNIQUES KNOWLEDGE
Treatment of property Sudoku-COL-AN12-LTLFireability-01 finished in 36608 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202303021504/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X(F(p0)))'
Support contains 432 out of 432 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 432/432 places, 1728/1728 transitions.
Applied a total of 0 rules in 6 ms. Remains 432 /432 variables (removed 0) and now considering 1728/1728 (removed 0) transitions.
[2023-03-18 17:49:50] [INFO ] Invariant cache hit.
[2023-03-18 17:49:50] [INFO ] Implicit Places using invariants in 66 ms returned []
[2023-03-18 17:49:50] [INFO ] Invariant cache hit.
[2023-03-18 17:49:51] [INFO ] Implicit Places using invariants and state equation in 474 ms returned []
Implicit Place search using SMT with State Equation took 544 ms to find 0 implicit places.
[2023-03-18 17:49:51] [INFO ] Invariant cache hit.
[2023-03-18 17:49:51] [INFO ] Dead Transitions using invariants and state equation in 506 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 1058 ms. Remains : 432/432 places, 1728/1728 transitions.
Stuttering acceptance computed with spot in 71 ms :[(NOT p0), (NOT p0)]
Running random walk in product with property : Sudoku-COL-AN12-LTLFireability-03 automaton TGBA Formula[mat=[[{ cond=true, acceptance={} source=0 dest: 1}], [{ cond=(NOT p0), acceptance={0} source=1 dest: 1}]], initial=0, aps=[p0:(OR (AND (GEQ s72 1) (GEQ s220 1) (GEQ s336 1)) (AND (GEQ s61 1) (GEQ s207 1) (GEQ s325 1)) (AND (GEQ s82 1) (GEQ s226 1) (GEQ s418 1)) (AND (GEQ s103 ...], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, deterministic, no-univ-branch, unambiguous, semi-deterministic, stutter-sensitive, very-weak, weak, inherently-weak], stateDesc=[null, null][false, false]]
Product exploration timeout after 66470 steps with 33235 reset in 10002 ms.
Product exploration timeout after 65810 steps with 32905 reset in 10001 ms.
Computed a total of 432 stabilizing places and 1728 stable transitions
Complete graph has no SCC; deadlocks are unavoidable. place count 432 transition count 1728
Detected that all paths lead to deadlock. Applying this knowledge to assert that all AP eventually converge (and all enablings converge to false).
Detected that all paths lead to deadlock. Applying this knowledge to assert that all AP eventually converge : F ( (Ga|G!a) & (Gb|G!b)...)
Knowledge obtained : [p0, (X p0), (X (X p0)), (F (G (NOT p0)))]
False Knowledge obtained : []
Property proved to be true thanks to knowledge :(X p0)
Knowledge based reduction with 4 factoid took 76 ms. Reduced automaton from 2 states, 2 edges and 1 AP (stutter sensitive) to 1 states, 0 edges and 0 AP (stutter insensitive).
FORMULA Sudoku-COL-AN12-LTLFireability-03 TRUE TECHNIQUES KNOWLEDGE
Treatment of property Sudoku-COL-AN12-LTLFireability-03 finished in 35675 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)))'
Support contains 432 out of 432 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 432/432 places, 1728/1728 transitions.
Applied a total of 0 rules in 4 ms. Remains 432 /432 variables (removed 0) and now considering 1728/1728 (removed 0) transitions.
[2023-03-18 17:50:26] [INFO ] Invariant cache hit.
[2023-03-18 17:50:26] [INFO ] Implicit Places using invariants in 73 ms returned []
[2023-03-18 17:50:26] [INFO ] Invariant cache hit.
[2023-03-18 17:50:26] [INFO ] Implicit Places using invariants and state equation in 466 ms returned []
Implicit Place search using SMT with State Equation took 545 ms to find 0 implicit places.
[2023-03-18 17:50:26] [INFO ] Invariant cache hit.
[2023-03-18 17:50:27] [INFO ] Dead Transitions using invariants and state equation in 493 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 1043 ms. Remains : 432/432 places, 1728/1728 transitions.
Stuttering acceptance computed with spot in 101 ms :[p0, p0, true, p0]
Running random walk in product with property : Sudoku-COL-AN12-LTLFireability-04 automaton TGBA Formula[mat=[[{ cond=p0, acceptance={} source=0 dest: 2}], [{ cond=true, acceptance={} source=1 dest: 0}], [{ cond=true, acceptance={0} source=2 dest: 2}], [{ cond=true, acceptance={} source=3 dest: 1}]], initial=3, aps=[p0:(OR (AND (GEQ s72 1) (GEQ s220 1) (GEQ s336 1)) (AND (GEQ s61 1) (GEQ s207 1) (GEQ s325 1)) (AND (GEQ s82 1) (GEQ s226 1) (GEQ s418 1)) (AND (GEQ s103 ...], 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, null][false, false, false, false]]
Entered a terminal (fully accepting) state of product in 2 steps with 0 reset in 1 ms.
FORMULA Sudoku-COL-AN12-LTLFireability-04 FALSE TECHNIQUES STUTTER_TEST
Treatment of property Sudoku-COL-AN12-LTLFireability-04 finished in 1180 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202303021504/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!((p0 U X(X(p0))))'
Support contains 432 out of 432 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 432/432 places, 1728/1728 transitions.
Applied a total of 0 rules in 6 ms. Remains 432 /432 variables (removed 0) and now considering 1728/1728 (removed 0) transitions.
[2023-03-18 17:50:27] [INFO ] Invariant cache hit.
[2023-03-18 17:50:27] [INFO ] Implicit Places using invariants in 73 ms returned []
[2023-03-18 17:50:27] [INFO ] Invariant cache hit.
[2023-03-18 17:50:28] [INFO ] Implicit Places using invariants and state equation in 462 ms returned []
Implicit Place search using SMT with State Equation took 537 ms to find 0 implicit places.
[2023-03-18 17:50:28] [INFO ] Invariant cache hit.
[2023-03-18 17:50:28] [INFO ] Dead Transitions using invariants and state equation in 496 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 1045 ms. Remains : 432/432 places, 1728/1728 transitions.
Stuttering acceptance computed with spot in 218 ms :[(NOT p0), (NOT p0), (NOT p0), true, (NOT p0), (NOT p0), (NOT p0)]
Running random walk in product with property : Sudoku-COL-AN12-LTLFireability-06 automaton TGBA Formula[mat=[[{ cond=(NOT p0), acceptance={} source=0 dest: 3}], [{ cond=p0, acceptance={} source=1 dest: 5}, { cond=(NOT p0), acceptance={} source=1 dest: 6}], [{ cond=true, acceptance={} source=2 dest: 0}], [{ cond=true, acceptance={0} source=3 dest: 3}], [{ cond=p0, acceptance={} source=4 dest: 1}, { cond=(NOT p0), acceptance={} source=4 dest: 2}], [{ cond=(NOT p0), acceptance={} source=5 dest: 6}], [{ cond=(NOT p0), acceptance={} source=6 dest: 0}]], initial=4, aps=[p0:(OR (AND (GEQ s72 1) (GEQ s220 1) (GEQ s336 1)) (AND (GEQ s61 1) (GEQ s207 1) (GEQ s325 1)) (AND (GEQ s82 1) (GEQ s226 1) (GEQ s418 1)) (AND (GEQ s103 ...], 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, null, null, null, null][false, false, false, false, false, false, false]]
Product exploration timeout after 51090 steps with 17030 reset in 10002 ms.
Product exploration timeout after 50520 steps with 16840 reset in 10004 ms.
Computed a total of 432 stabilizing places and 1728 stable transitions
Complete graph has no SCC; deadlocks are unavoidable. place count 432 transition count 1728
Detected that all paths lead to deadlock. Applying this knowledge to assert that all AP eventually converge (and all enablings converge to false).
Detected that all paths lead to deadlock. Applying this knowledge to assert that all AP eventually converge : F ( (Ga|G!a) & (Gb|G!b)...)
Knowledge obtained : [p0, (X p0), (X (X p0)), (F (G (NOT p0)))]
False Knowledge obtained : []
Property proved to be true thanks to knowledge :(X (X p0))
Knowledge based reduction with 4 factoid took 74 ms. Reduced automaton from 7 states, 9 edges and 1 AP (stutter sensitive) to 1 states, 0 edges and 0 AP (stutter insensitive).
FORMULA Sudoku-COL-AN12-LTLFireability-06 TRUE TECHNIQUES KNOWLEDGE
Treatment of property Sudoku-COL-AN12-LTLFireability-06 finished in 35658 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((X(p1)&&p0)))'
Support contains 432 out of 432 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 432/432 places, 1728/1728 transitions.
Applied a total of 0 rules in 5 ms. Remains 432 /432 variables (removed 0) and now considering 1728/1728 (removed 0) transitions.
[2023-03-18 17:51:03] [INFO ] Invariant cache hit.
[2023-03-18 17:51:03] [INFO ] Implicit Places using invariants in 67 ms returned []
[2023-03-18 17:51:03] [INFO ] Invariant cache hit.
[2023-03-18 17:51:03] [INFO ] Implicit Places using invariants and state equation in 458 ms returned []
Implicit Place search using SMT with State Equation took 527 ms to find 0 implicit places.
[2023-03-18 17:51:03] [INFO ] Invariant cache hit.
[2023-03-18 17:51:04] [INFO ] Dead Transitions using invariants and state equation in 498 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 1033 ms. Remains : 432/432 places, 1728/1728 transitions.
Stuttering acceptance computed with spot in 78 ms :[(OR (NOT p0) (NOT p1)), (NOT p1)]
Running random walk in product with property : Sudoku-COL-AN12-LTLFireability-07 automaton TGBA Formula[mat=[[{ cond=(NOT p0), acceptance={0} source=0 dest: 0}, { cond=p0, acceptance={0} source=0 dest: 1}], [{ cond=(AND (NOT p0) (NOT p1)), acceptance={0} source=1 dest: 0}, { cond=(AND p0 (NOT p1)), acceptance={0} source=1 dest: 1}]], initial=0, aps=[p0:(AND (OR (LT s72 1) (LT s220 1) (LT s336 1)) (OR (LT s61 1) (LT s207 1) (LT s325 1)) (OR (LT s82 1) (LT s226 1) (LT s418 1)) (OR (LT s103 1) (LT s240 1...], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, colored, deterministic, no-univ-branch, unambiguous, semi-deterministic, stutter-sensitive, weak, inherently-weak], stateDesc=[null, null][false, false]]
Stuttering criterion allowed to conclude after 128 steps with 0 reset in 15 ms.
FORMULA Sudoku-COL-AN12-LTLFireability-07 FALSE TECHNIQUES STUTTER_TEST
Treatment of property Sudoku-COL-AN12-LTLFireability-07 finished in 1176 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 432 out of 432 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 432/432 places, 1728/1728 transitions.
Applied a total of 0 rules in 18 ms. Remains 432 /432 variables (removed 0) and now considering 1728/1728 (removed 0) transitions.
[2023-03-18 17:51:04] [INFO ] Invariant cache hit.
[2023-03-18 17:51:04] [INFO ] Implicit Places using invariants in 63 ms returned []
[2023-03-18 17:51:04] [INFO ] Invariant cache hit.
[2023-03-18 17:51:04] [INFO ] Implicit Places using invariants and state equation in 453 ms returned []
Implicit Place search using SMT with State Equation took 519 ms to find 0 implicit places.
[2023-03-18 17:51:05] [INFO ] Redundant transitions in 96 ms returned []
[2023-03-18 17:51:05] [INFO ] Invariant cache hit.
[2023-03-18 17:51:05] [INFO ] Dead Transitions using invariants and state equation in 513 ms found 0 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 1156 ms. Remains : 432/432 places, 1728/1728 transitions.
Stuttering acceptance computed with spot in 57 ms :[(NOT p0), (NOT p0)]
Running random walk in product with property : Sudoku-COL-AN12-LTLFireability-09 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:(OR (AND (GEQ s72 1) (GEQ s220 1) (GEQ s336 1)) (AND (GEQ s61 1) (GEQ s207 1) (GEQ s325 1)) (AND (GEQ s82 1) (GEQ s226 1) (GEQ s418 1)) (AND (GEQ s103 ...], 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 124 steps with 0 reset in 13 ms.
FORMULA Sudoku-COL-AN12-LTLFireability-09 FALSE TECHNIQUES STUTTER_TEST
Treatment of property Sudoku-COL-AN12-LTLFireability-09 finished in 1258 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 432 out of 432 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 432/432 places, 1728/1728 transitions.
Applied a total of 0 rules in 11 ms. Remains 432 /432 variables (removed 0) and now considering 1728/1728 (removed 0) transitions.
[2023-03-18 17:51:05] [INFO ] Invariant cache hit.
[2023-03-18 17:51:05] [INFO ] Implicit Places using invariants in 65 ms returned []
[2023-03-18 17:51:05] [INFO ] Invariant cache hit.
[2023-03-18 17:51:06] [INFO ] Implicit Places using invariants and state equation in 441 ms returned []
Implicit Place search using SMT with State Equation took 515 ms to find 0 implicit places.
[2023-03-18 17:51:06] [INFO ] Redundant transitions in 74 ms returned []
[2023-03-18 17:51:06] [INFO ] Invariant cache hit.
[2023-03-18 17:51:06] [INFO ] Dead Transitions using invariants and state equation in 488 ms found 0 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 1095 ms. Remains : 432/432 places, 1728/1728 transitions.
Stuttering acceptance computed with spot in 62 ms :[(NOT p0), (NOT p0)]
Running random walk in product with property : Sudoku-COL-AN12-LTLFireability-10 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:(OR (AND (GEQ s72 1) (GEQ s220 1) (GEQ s336 1)) (AND (GEQ s61 1) (GEQ s207 1) (GEQ s325 1)) (AND (GEQ s82 1) (GEQ s226 1) (GEQ s418 1)) (AND (GEQ s103 ...], 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 125 steps with 0 reset in 18 ms.
FORMULA Sudoku-COL-AN12-LTLFireability-10 FALSE TECHNIQUES STUTTER_TEST
Treatment of property Sudoku-COL-AN12-LTLFireability-10 finished in 1210 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(((X(p0) U G(p0))||(X(p0)&&p1)))))'
Support contains 432 out of 432 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 432/432 places, 1728/1728 transitions.
Applied a total of 0 rules in 6 ms. Remains 432 /432 variables (removed 0) and now considering 1728/1728 (removed 0) transitions.
[2023-03-18 17:51:06] [INFO ] Invariant cache hit.
[2023-03-18 17:51:06] [INFO ] Implicit Places using invariants in 74 ms returned []
[2023-03-18 17:51:06] [INFO ] Invariant cache hit.
[2023-03-18 17:51:07] [INFO ] Implicit Places using invariants and state equation in 460 ms returned []
Implicit Place search using SMT with State Equation took 539 ms to find 0 implicit places.
[2023-03-18 17:51:07] [INFO ] Invariant cache hit.
[2023-03-18 17:51:07] [INFO ] Dead Transitions using invariants and state equation in 492 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 1038 ms. Remains : 432/432 places, 1728/1728 transitions.
Stuttering acceptance computed with spot in 120 ms :[true, (NOT p0), (NOT p0), (NOT p0)]
Running random walk in product with property : Sudoku-COL-AN12-LTLFireability-13 automaton TGBA Formula[mat=[[{ cond=true, acceptance={0} source=0 dest: 0}], [{ cond=true, acceptance={} source=1 dest: 3}], [{ cond=true, acceptance={} source=2 dest: 1}], [{ cond=(NOT p0), acceptance={} source=3 dest: 0}, { cond=p0, acceptance={} source=3 dest: 3}]], initial=2, aps=[p0:(OR (AND (GEQ s72 1) (GEQ s220 1) (GEQ s336 1)) (AND (GEQ s61 1) (GEQ s207 1) (GEQ s325 1)) (AND (GEQ s82 1) (GEQ s226 1) (GEQ s418 1)) (AND (GEQ s103 ...], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, complete, deterministic, no-univ-branch, unambiguous, semi-deterministic, stutter-sensitive, very-weak, weak, inherently-weak], stateDesc=[null, null, null, null][false, false, false, false]]
Entered a terminal (fully accepting) state of product in 123 steps with 0 reset in 15 ms.
FORMULA Sudoku-COL-AN12-LTLFireability-13 FALSE TECHNIQUES STUTTER_TEST
Treatment of property Sudoku-COL-AN12-LTLFireability-13 finished in 1440 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202303021504/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(F(G(p0)))'
Support contains 432 out of 432 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 432/432 places, 1728/1728 transitions.
Applied a total of 0 rules in 16 ms. Remains 432 /432 variables (removed 0) and now considering 1728/1728 (removed 0) transitions.
[2023-03-18 17:51:08] [INFO ] Invariant cache hit.
[2023-03-18 17:51:08] [INFO ] Implicit Places using invariants in 59 ms returned []
[2023-03-18 17:51:08] [INFO ] Invariant cache hit.
[2023-03-18 17:51:08] [INFO ] Implicit Places using invariants and state equation in 461 ms returned []
Implicit Place search using SMT with State Equation took 521 ms to find 0 implicit places.
[2023-03-18 17:51:08] [INFO ] Redundant transitions in 24 ms returned []
[2023-03-18 17:51:08] [INFO ] Invariant cache hit.
[2023-03-18 17:51:09] [INFO ] Dead Transitions using invariants and state equation in 487 ms found 0 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 1057 ms. Remains : 432/432 places, 1728/1728 transitions.
Stuttering acceptance computed with spot in 35 ms :[(NOT p0)]
Running random walk in product with property : Sudoku-COL-AN12-LTLFireability-14 automaton TGBA Formula[mat=[[{ cond=p0, acceptance={} source=0 dest: 0}, { cond=(NOT p0), acceptance={0} source=0 dest: 0}]], initial=0, aps=[p0:(OR (AND (GEQ s72 1) (GEQ s220 1) (GEQ s336 1)) (AND (GEQ s61 1) (GEQ s207 1) (GEQ s325 1)) (AND (GEQ s82 1) (GEQ s226 1) (GEQ s418 1)) (AND (GEQ s103 ...], 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 126 steps with 0 reset in 14 ms.
FORMULA Sudoku-COL-AN12-LTLFireability-14 FALSE TECHNIQUES STUTTER_TEST
Treatment of property Sudoku-COL-AN12-LTLFireability-14 finished in 1130 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 432 out of 432 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 432/432 places, 1728/1728 transitions.
Applied a total of 0 rules in 18 ms. Remains 432 /432 variables (removed 0) and now considering 1728/1728 (removed 0) transitions.
[2023-03-18 17:51:09] [INFO ] Invariant cache hit.
[2023-03-18 17:51:09] [INFO ] Implicit Places using invariants in 74 ms returned []
[2023-03-18 17:51:09] [INFO ] Invariant cache hit.
[2023-03-18 17:51:09] [INFO ] Implicit Places using invariants and state equation in 454 ms returned []
Implicit Place search using SMT with State Equation took 530 ms to find 0 implicit places.
[2023-03-18 17:51:09] [INFO ] Redundant transitions in 19 ms returned []
[2023-03-18 17:51:09] [INFO ] Invariant cache hit.
[2023-03-18 17:51:10] [INFO ] Dead Transitions using invariants and state equation in 477 ms found 0 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 1058 ms. Remains : 432/432 places, 1728/1728 transitions.
Stuttering acceptance computed with spot in 28 ms :[p0]
Running random walk in product with property : Sudoku-COL-AN12-LTLFireability-15 automaton TGBA Formula[mat=[[{ cond=p0, acceptance={0} source=0 dest: 0}]], initial=0, aps=[p0:(OR (AND (GEQ s72 1) (GEQ s220 1) (GEQ s336 1)) (AND (GEQ s61 1) (GEQ s207 1) (GEQ s325 1)) (AND (GEQ s82 1) (GEQ s226 1) (GEQ s418 1)) (AND (GEQ s103 ...], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, colored, deterministic, no-univ-branch, unambiguous, semi-deterministic, stutter-invariant, very-weak, weak, inherently-weak], stateDesc=[null][true]]
Product exploration explored 100000 steps with 793 reset in 9474 ms.
Product exploration explored 100000 steps with 793 reset in 9704 ms.
Computed a total of 432 stabilizing places and 1728 stable transitions
Complete graph has no SCC; deadlocks are unavoidable. place count 432 transition count 1728
Detected that all paths lead to deadlock. Applying this knowledge to assert that all AP eventually converge (and all enablings converge to false).
Detected that all paths lead to deadlock. Applying this knowledge to assert that all AP eventually converge : F ( (Ga|G!a) & (Gb|G!b)...)
Knowledge obtained : [p0, (X p0), (X (X p0)), (F (G (NOT p0)))]
False Knowledge obtained : []
Property proved to be true thanks to knowledge :(F (G (NOT p0)))
Knowledge based reduction with 4 factoid took 102 ms. Reduced automaton from 1 states, 1 edges and 1 AP (stutter insensitive) to 1 states, 0 edges and 0 AP (stutter insensitive).
FORMULA Sudoku-COL-AN12-LTLFireability-15 TRUE TECHNIQUES KNOWLEDGE
Treatment of property Sudoku-COL-AN12-LTLFireability-15 finished in 34873 ms.
All properties solved by simple procedures.
Total runtime 198035 ms.
BK_STOP 1679161907660
--------------------
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="Sudoku-COL-AN12"
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 Sudoku-COL-AN12, 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 r485-tall-167912698900092"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"
tar xzf /home/mcc/BenchKit/INPUTS/Sudoku-COL-AN12.tgz
mv Sudoku-COL-AN12 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 '
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 ;