About the Execution of Marcie+red for SharedMemory-COL-000005
Execution Summary | |||||
Max Memory Used (MB) |
Time wait (ms) | CPU Usage (ms) | I/O Wait (ms) | Computed Result | Execution Status |
5451.812 | 126588.00 | 138560.00 | 818.90 | FTFFTTTTFTTTFTTF | 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.r362-smll-167891813100545.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 marciexred
Input is SharedMemory-COL-000005, examination is CTLCardinality
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r362-smll-167891813100545
=====================================================================
--------------------
preparation of the directory to be used:
/home/mcc/execution
total 504K
-rw-r--r-- 1 mcc users 8.5K Feb 25 14:01 CTLCardinality.txt
-rw-r--r-- 1 mcc users 85K Feb 25 14:01 CTLCardinality.xml
-rw-r--r-- 1 mcc users 7.3K Feb 25 13:55 CTLFireability.txt
-rw-r--r-- 1 mcc users 59K Feb 25 13:55 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Jan 29 11:41 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.5K Jan 29 11:41 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 4.0K Feb 25 16:52 LTLCardinality.txt
-rw-r--r-- 1 mcc users 27K Feb 25 16:52 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.7K Feb 25 16:52 LTLFireability.txt
-rw-r--r-- 1 mcc users 17K Feb 25 16:52 LTLFireability.xml
-rw-r--r-- 1 mcc users 13K Feb 25 14:07 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 126K Feb 25 14:07 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 11K Feb 25 14:05 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 74K Feb 25 14:05 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.8K Feb 25 16:52 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.8K Feb 25 16:52 UpperBounds.xml
-rw-r--r-- 1 mcc users 5 Mar 5 18:23 equiv_pt
-rw-r--r-- 1 mcc users 7 Mar 5 18:23 instance
-rw-r--r-- 1 mcc users 5 Mar 5 18:23 iscolored
-rw-r--r-- 1 mcc users 12K 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 SharedMemory-COL-000005-CTLCardinality-00
FORMULA_NAME SharedMemory-COL-000005-CTLCardinality-01
FORMULA_NAME SharedMemory-COL-000005-CTLCardinality-02
FORMULA_NAME SharedMemory-COL-000005-CTLCardinality-03
FORMULA_NAME SharedMemory-COL-000005-CTLCardinality-04
FORMULA_NAME SharedMemory-COL-000005-CTLCardinality-05
FORMULA_NAME SharedMemory-COL-000005-CTLCardinality-06
FORMULA_NAME SharedMemory-COL-000005-CTLCardinality-07
FORMULA_NAME SharedMemory-COL-000005-CTLCardinality-08
FORMULA_NAME SharedMemory-COL-000005-CTLCardinality-09
FORMULA_NAME SharedMemory-COL-000005-CTLCardinality-10
FORMULA_NAME SharedMemory-COL-000005-CTLCardinality-11
FORMULA_NAME SharedMemory-COL-000005-CTLCardinality-12
FORMULA_NAME SharedMemory-COL-000005-CTLCardinality-13
FORMULA_NAME SharedMemory-COL-000005-CTLCardinality-14
FORMULA_NAME SharedMemory-COL-000005-CTLCardinality-15
=== Now, execution of the tool begins
BK_START 1679262588209
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=marciexred
BK_EXAMINATION=CTLCardinality
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=SharedMemory-COL-000005
Applying reductions before tool marcie
Invoking reducer
Running Version 202303021504
[2023-03-19 21:49:51] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, CTLCardinality, -timeout, 360, -rebuildPNML]
[2023-03-19 21:49:51] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2023-03-19 21:49:52] [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.
[2023-03-19 21:49:52] [WARNING] Using fallBack plugin, rng conformance not checked
[2023-03-19 21:49:53] [INFO ] Load time of PNML (colored model parsed with PNMLFW) : 1022 ms
[2023-03-19 21:49:53] [INFO ] Imported 6 HL places and 5 HL transitions for a total of 46 PT places and 85.0 transition bindings in 31 ms.
Parsed 16 properties from file /home/mcc/execution/CTLCardinality.xml in 45 ms.
[2023-03-19 21:49:53] [INFO ] Built PT skeleton of HLPN with 6 places and 5 transitions 16 arcs in 18 ms.
[2023-03-19 21:49:53] [INFO ] Skeletonized 16 HLPN properties in 4 ms.
Initial state reduction rules removed 2 formulas.
FORMULA SharedMemory-COL-000005-CTLCardinality-04 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA SharedMemory-COL-000005-CTLCardinality-06 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Computed a total of 0 stabilizing places and 0 stable transitions
Remains 14 properties that can be checked using skeleton over-approximation.
Computed a total of 0 stabilizing places and 0 stable transitions
Incomplete random walk after 10000 steps, including 2 resets, run finished after 954 ms. (steps per millisecond=10 ) properties (out of 70) seen :18
Incomplete Best-First random walk after 1000 steps, including 2 resets, run finished after 15 ms. (steps per millisecond=66 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1000 steps, including 2 resets, run finished after 16 ms. (steps per millisecond=62 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 16 ms. (steps per millisecond=62 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1000 steps, including 2 resets, run finished after 19 ms. (steps per millisecond=52 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1000 steps, including 2 resets, run finished after 16 ms. (steps per millisecond=62 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1000 steps, including 2 resets, run finished after 22 ms. (steps per millisecond=45 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1000 steps, including 2 resets, run finished after 19 ms. (steps per millisecond=52 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1000 steps, including 2 resets, run finished after 23 ms. (steps per millisecond=43 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1000 steps, including 2 resets, run finished after 23 ms. (steps per millisecond=43 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 12 ms. (steps per millisecond=83 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1000 steps, including 2 resets, run finished after 16 ms. (steps per millisecond=62 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1000 steps, including 2 resets, run finished after 15 ms. (steps per millisecond=66 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1000 steps, including 2 resets, run finished after 15 ms. (steps per millisecond=66 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1000 steps, including 2 resets, run finished after 12 ms. (steps per millisecond=83 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 15 ms. (steps per millisecond=66 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 16 ms. (steps per millisecond=62 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1000 steps, including 2 resets, run finished after 15 ms. (steps per millisecond=66 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1000 steps, including 2 resets, run finished after 14 ms. (steps per millisecond=71 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 12 ms. (steps per millisecond=83 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1000 steps, including 2 resets, run finished after 14 ms. (steps per millisecond=71 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 21 ms. (steps per millisecond=47 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1000 steps, including 2 resets, run finished after 15 ms. (steps per millisecond=66 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1000 steps, including 2 resets, run finished after 15 ms. (steps per millisecond=66 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1000 steps, including 2 resets, run finished after 18 ms. (steps per millisecond=55 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 16 ms. (steps per millisecond=62 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 15 ms. (steps per millisecond=66 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1000 steps, including 2 resets, run finished after 21 ms. (steps per millisecond=47 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1000 steps, including 2 resets, run finished after 14 ms. (steps per millisecond=71 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1000 steps, including 2 resets, run finished after 17 ms. (steps per millisecond=58 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 11 ms. (steps per millisecond=91 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 10 ms. (steps per millisecond=100 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 12 ms. (steps per millisecond=83 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1000 steps, including 2 resets, run finished after 39 ms. (steps per millisecond=25 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 10 ms. (steps per millisecond=100 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 18 ms. (steps per millisecond=55 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1000 steps, including 2 resets, run finished after 21 ms. (steps per millisecond=47 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 21 ms. (steps per millisecond=47 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1000 steps, including 2 resets, run finished after 24 ms. (steps per millisecond=41 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 20 ms. (steps per millisecond=50 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1000 steps, including 2 resets, run finished after 15 ms. (steps per millisecond=66 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1000 steps, including 2 resets, run finished after 20 ms. (steps per millisecond=50 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 27 ms. (steps per millisecond=37 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1000 steps, including 2 resets, run finished after 30 ms. (steps per millisecond=33 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 23 ms. (steps per millisecond=43 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 31 ms. (steps per millisecond=32 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1000 steps, including 2 resets, run finished after 32 ms. (steps per millisecond=31 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1000 steps, including 2 resets, run finished after 33 ms. (steps per millisecond=30 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1000 steps, including 2 resets, run finished after 33 ms. (steps per millisecond=30 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1000 steps, including 2 resets, run finished after 24 ms. (steps per millisecond=41 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1000 steps, including 2 resets, run finished after 44 ms. (steps per millisecond=22 ) properties (out of 52) seen :0
Running SMT prover for 52 properties.
// Phase 1: matrix 5 rows 6 cols
[2023-03-19 21:49:55] [INFO ] Computed 3 place invariants in 5 ms
[2023-03-19 21:49:55] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2023-03-19 21:49:55] [INFO ] After 385ms SMT Verify possible using all constraints in real domain returned unsat :41 sat :0 real:11
[2023-03-19 21:49:55] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2023-03-19 21:49:55] [INFO ] After 74ms SMT Verify possible using all constraints in natural domain returned unsat :52 sat :0
Fused 52 Parikh solutions to 0 different solutions.
Parikh walk visited 0 properties in 0 ms.
Successfully simplified 52 atomic propositions for a total of 14 simplifications.
[2023-03-19 21:49:55] [INFO ] Initial state reduction rules for CTL removed 3 formulas.
[2023-03-19 21:49:55] [INFO ] Flatten gal took : 26 ms
[2023-03-19 21:49:55] [INFO ] Initial state reduction rules for CTL removed 3 formulas.
FORMULA SharedMemory-COL-000005-CTLCardinality-14 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA SharedMemory-COL-000005-CTLCardinality-10 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA SharedMemory-COL-000005-CTLCardinality-09 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA SharedMemory-COL-000005-CTLCardinality-05 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA SharedMemory-COL-000005-CTLCardinality-03 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA SharedMemory-COL-000005-CTLCardinality-00 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
[2023-03-19 21:49:55] [INFO ] Flatten gal took : 3 ms
Domain [P(5), P(5)] of place Ext_Mem_Acc breaks symmetries in sort P
[2023-03-19 21:49:55] [INFO ] Unfolded HLPN to a Petri net with 46 places and 60 transitions 220 arcs in 14 ms.
[2023-03-19 21:49:55] [INFO ] Unfolded 8 HLPN properties in 1 ms.
Deduced a syphon composed of 5 places in 0 ms
Reduce places removed 5 places and 5 transitions.
Support contains 41 out of 41 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 41/41 places, 55/55 transitions.
Applied a total of 0 rules in 21 ms. Remains 41 /41 variables (removed 0) and now considering 55/55 (removed 0) transitions.
// Phase 1: matrix 55 rows 41 cols
[2023-03-19 21:49:55] [INFO ] Computed 11 place invariants in 11 ms
[2023-03-19 21:49:55] [INFO ] Implicit Places using invariants in 64 ms returned []
[2023-03-19 21:49:55] [INFO ] Invariant cache hit.
[2023-03-19 21:49:56] [INFO ] Implicit Places using invariants and state equation in 94 ms returned []
Implicit Place search using SMT with State Equation took 161 ms to find 0 implicit places.
[2023-03-19 21:49:56] [INFO ] Invariant cache hit.
[2023-03-19 21:49:56] [INFO ] Dead Transitions using invariants and state equation in 212 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 398 ms. Remains : 41/41 places, 55/55 transitions.
Support contains 41 out of 41 places after structural reductions.
[2023-03-19 21:49:56] [INFO ] Flatten gal took : 21 ms
[2023-03-19 21:49:56] [INFO ] Flatten gal took : 21 ms
[2023-03-19 21:49:56] [INFO ] Input system was already deterministic with 55 transitions.
Incomplete random walk after 10000 steps, including 2 resets, run finished after 860 ms. (steps per millisecond=11 ) properties (out of 37) seen :13
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 9 ms. (steps per millisecond=111 ) properties (out of 24) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 8 ms. (steps per millisecond=125 ) properties (out of 24) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 4 ms. (steps per millisecond=250 ) properties (out of 24) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 6 ms. (steps per millisecond=166 ) properties (out of 24) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 6 ms. (steps per millisecond=166 ) properties (out of 24) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 6 ms. (steps per millisecond=166 ) properties (out of 24) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 10 ms. (steps per millisecond=100 ) properties (out of 24) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 10 ms. (steps per millisecond=100 ) properties (out of 24) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 10 ms. (steps per millisecond=100 ) properties (out of 24) seen :0
Incomplete Best-First random walk after 1000 steps, including 2 resets, run finished after 10 ms. (steps per millisecond=100 ) properties (out of 24) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 7 ms. (steps per millisecond=143 ) properties (out of 24) seen :0
Incomplete Best-First random walk after 1000 steps, including 2 resets, run finished after 6 ms. (steps per millisecond=166 ) properties (out of 24) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 11 ms. (steps per millisecond=91 ) properties (out of 24) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 5 ms. (steps per millisecond=200 ) properties (out of 24) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 18 ms. (steps per millisecond=55 ) properties (out of 24) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 6 ms. (steps per millisecond=166 ) properties (out of 24) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 5 ms. (steps per millisecond=200 ) properties (out of 24) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 14 ms. (steps per millisecond=71 ) properties (out of 24) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 4 ms. (steps per millisecond=250 ) properties (out of 24) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 6 ms. (steps per millisecond=166 ) properties (out of 24) seen :0
Incomplete Best-First random walk after 1000 steps, including 2 resets, run finished after 4 ms. (steps per millisecond=250 ) properties (out of 24) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 7 ms. (steps per millisecond=143 ) properties (out of 24) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 4 ms. (steps per millisecond=250 ) properties (out of 24) seen :0
Incomplete Best-First random walk after 1000 steps, including 2 resets, run finished after 17 ms. (steps per millisecond=58 ) properties (out of 24) seen :0
Running SMT prover for 24 properties.
[2023-03-19 21:49:57] [INFO ] Invariant cache hit.
[2023-03-19 21:49:57] [INFO ] [Real]Absence check using 11 positive place invariants in 5 ms returned sat
[2023-03-19 21:49:57] [INFO ] After 129ms SMT Verify possible using all constraints in real domain returned unsat :14 sat :0 real:10
[2023-03-19 21:49:57] [INFO ] [Nat]Absence check using 11 positive place invariants in 4 ms returned sat
[2023-03-19 21:49:57] [INFO ] After 73ms SMT Verify possible using all constraints in natural domain returned unsat :24 sat :0
Fused 24 Parikh solutions to 0 different solutions.
Parikh walk visited 0 properties in 0 ms.
Successfully simplified 24 atomic propositions for a total of 8 simplifications.
[2023-03-19 21:49:57] [INFO ] Flatten gal took : 9 ms
[2023-03-19 21:49:57] [INFO ] Flatten gal took : 10 ms
[2023-03-19 21:49:57] [INFO ] Input system was already deterministic with 55 transitions.
Computed a total of 0 stabilizing places and 0 stable transitions
Starting structural reductions in LTL mode, iteration 0 : 41/41 places, 55/55 transitions.
Applied a total of 0 rules in 1 ms. Remains 41 /41 variables (removed 0) and now considering 55/55 (removed 0) transitions.
Finished structural reductions in LTL mode , in 1 iterations and 1 ms. Remains : 41/41 places, 55/55 transitions.
[2023-03-19 21:49:57] [INFO ] Flatten gal took : 7 ms
[2023-03-19 21:49:57] [INFO ] Flatten gal took : 8 ms
[2023-03-19 21:49:57] [INFO ] Input system was already deterministic with 55 transitions.
Starting structural reductions in LTL mode, iteration 0 : 41/41 places, 55/55 transitions.
Applied a total of 0 rules in 2 ms. Remains 41 /41 variables (removed 0) and now considering 55/55 (removed 0) transitions.
Finished structural reductions in LTL mode , in 1 iterations and 2 ms. Remains : 41/41 places, 55/55 transitions.
[2023-03-19 21:49:57] [INFO ] Flatten gal took : 7 ms
[2023-03-19 21:49:57] [INFO ] Flatten gal took : 7 ms
[2023-03-19 21:49:57] [INFO ] Input system was already deterministic with 55 transitions.
Starting structural reductions in LTL mode, iteration 0 : 41/41 places, 55/55 transitions.
Applied a total of 0 rules in 2 ms. Remains 41 /41 variables (removed 0) and now considering 55/55 (removed 0) transitions.
Finished structural reductions in LTL mode , in 1 iterations and 2 ms. Remains : 41/41 places, 55/55 transitions.
[2023-03-19 21:49:57] [INFO ] Flatten gal took : 13 ms
[2023-03-19 21:49:57] [INFO ] Flatten gal took : 7 ms
[2023-03-19 21:49:57] [INFO ] Input system was already deterministic with 55 transitions.
Starting structural reductions in LTL mode, iteration 0 : 41/41 places, 55/55 transitions.
Applied a total of 0 rules in 1 ms. Remains 41 /41 variables (removed 0) and now considering 55/55 (removed 0) transitions.
Finished structural reductions in LTL mode , in 1 iterations and 1 ms. Remains : 41/41 places, 55/55 transitions.
[2023-03-19 21:49:57] [INFO ] Flatten gal took : 6 ms
[2023-03-19 21:49:57] [INFO ] Flatten gal took : 7 ms
[2023-03-19 21:49:57] [INFO ] Input system was already deterministic with 55 transitions.
Starting structural reductions in LTL mode, iteration 0 : 41/41 places, 55/55 transitions.
Applied a total of 0 rules in 2 ms. Remains 41 /41 variables (removed 0) and now considering 55/55 (removed 0) transitions.
Finished structural reductions in LTL mode , in 1 iterations and 2 ms. Remains : 41/41 places, 55/55 transitions.
[2023-03-19 21:49:57] [INFO ] Flatten gal took : 5 ms
[2023-03-19 21:49:57] [INFO ] Flatten gal took : 6 ms
[2023-03-19 21:49:57] [INFO ] Input system was already deterministic with 55 transitions.
Starting structural reductions in LTL mode, iteration 0 : 41/41 places, 55/55 transitions.
Applied a total of 0 rules in 1 ms. Remains 41 /41 variables (removed 0) and now considering 55/55 (removed 0) transitions.
Finished structural reductions in LTL mode , in 1 iterations and 1 ms. Remains : 41/41 places, 55/55 transitions.
[2023-03-19 21:49:57] [INFO ] Flatten gal took : 6 ms
[2023-03-19 21:49:57] [INFO ] Flatten gal took : 14 ms
[2023-03-19 21:49:57] [INFO ] Input system was already deterministic with 55 transitions.
Starting structural reductions in LTL mode, iteration 0 : 41/41 places, 55/55 transitions.
Applied a total of 0 rules in 1 ms. Remains 41 /41 variables (removed 0) and now considering 55/55 (removed 0) transitions.
Finished structural reductions in LTL mode , in 1 iterations and 1 ms. Remains : 41/41 places, 55/55 transitions.
[2023-03-19 21:49:57] [INFO ] Flatten gal took : 5 ms
[2023-03-19 21:49:57] [INFO ] Flatten gal took : 6 ms
[2023-03-19 21:49:58] [INFO ] Input system was already deterministic with 55 transitions.
Starting structural reductions in LTL mode, iteration 0 : 41/41 places, 55/55 transitions.
Applied a total of 0 rules in 1 ms. Remains 41 /41 variables (removed 0) and now considering 55/55 (removed 0) transitions.
Finished structural reductions in LTL mode , in 1 iterations and 1 ms. Remains : 41/41 places, 55/55 transitions.
[2023-03-19 21:49:58] [INFO ] Flatten gal took : 5 ms
[2023-03-19 21:49:58] [INFO ] Flatten gal took : 5 ms
[2023-03-19 21:49:58] [INFO ] Input system was already deterministic with 55 transitions.
[2023-03-19 21:49:58] [INFO ] Flatten gal took : 7 ms
[2023-03-19 21:49:58] [INFO ] Flatten gal took : 6 ms
[2023-03-19 21:49:58] [INFO ] Export to MCC of 8 properties in file /home/mcc/execution/CTLCardinality.sr.xml took 2 ms.
[2023-03-19 21:49:58] [INFO ] Export to PNML in file /home/mcc/execution/model.sr.pnml of net with 41 places, 55 transitions and 200 arcs took 1 ms.
Total runtime 6247 ms.
There are residual formulas that ITS could not solve within timeout
timeout --kill-after=10s --signal=SIGINT 1m for testing only
Marcie built on Linux at 2019-11-18.
A model checker for Generalized Stochastic Petri nets
authors: Alex Tovchigrechko (IDD package and CTL model checking)
Martin Schwarick (Symbolic numerical analysis and CSL model checking)
Christian Rohr (Simulative and approximative numerical model checking)
marcie@informatik.tu-cottbus.de
called as: /home/mcc/BenchKit/bin//../reducer/bin//../../marcie/bin/marcie --net-file=model.pnml --mcc-file=CTLCardinality.xml --memory=6 --mcc-mode
parse successfull
net created successfully
Net: Petri
(NrP: 41 NrTr: 55 NrArc: 200)
parse formulas
formulas created successfully
place and transition orderings generation:0m 0.000sec
net check time: 0m 0.000sec
init dd package: 0m 3.570sec
RS generation: 0m 0.006sec
-> reachability set: #nodes 363 (3.6e+02) #states 1,863 (3)
starting MCC model checker
--------------------------
checking: AX [1<=0]
normalized: ~ [EX [~ [1<=0]]]
abstracting: (1<=0)
states: 0
.-> the formula is FALSE
FORMULA SharedMemory-COL-000005-CTLCardinality-02 FALSE TECHNIQUES SEQUENTIAL_PROCESSING DECISION_DIAGRAMS UNFOLDING_TO_PT
MC time: 0m 0.043sec
checking: EX [AX [AX [1<=0]]]
normalized: EX [~ [EX [EX [~ [1<=0]]]]]
abstracting: (1<=0)
states: 0
...-> the formula is FALSE
FORMULA SharedMemory-COL-000005-CTLCardinality-12 FALSE TECHNIQUES SEQUENTIAL_PROCESSING DECISION_DIAGRAMS UNFOLDING_TO_PT
MC time: 0m 0.000sec
checking: AG [AX [AG [sum(p19, p18, p17, p16, p15)<=p40]]]
normalized: ~ [E [true U EX [E [true U ~ [sum(p19, p18, p17, p16, p15)<=p40]]]]]
abstracting: (sum(p19, p18, p17, p16, p15)<=p40)
states: 432
.-> the formula is FALSE
FORMULA SharedMemory-COL-000005-CTLCardinality-08 FALSE TECHNIQUES SEQUENTIAL_PROCESSING DECISION_DIAGRAMS UNFOLDING_TO_PT
MC time: 0m 0.050sec
checking: [EF [[EX [0<=0] | AX [1<=0]]] & AF [EX [p40<=sum(p9, p8, p7, p6, p5)]]]
normalized: [~ [EG [~ [EX [p40<=sum(p9, p8, p7, p6, p5)]]]] & E [true U [~ [EX [~ [1<=0]]] | EX [0<=0]]]]
abstracting: (0<=0)
states: 1,863 (3)
.abstracting: (1<=0)
states: 0
.abstracting: (p40<=sum(p9, p8, p7, p6, p5))
states: 1,831 (3)
...
EG iterations: 2
-> the formula is TRUE
FORMULA SharedMemory-COL-000005-CTLCardinality-11 TRUE TECHNIQUES SEQUENTIAL_PROCESSING DECISION_DIAGRAMS UNFOLDING_TO_PT
MC time: 0m 0.041sec
checking: EG [[E [~ [EX [AG [sum(p9, p8, p7, p6, p5)<=sum(p4, p3, p2, p1, p0)]]] U EX [0<=0]] | AG [EX [0<=0]]]]
normalized: EG [[~ [E [true U ~ [EX [0<=0]]]] | E [~ [EX [~ [E [true U ~ [sum(p9, p8, p7, p6, p5)<=sum(p4, p3, p2, p1, p0)]]]]] U EX [0<=0]]]]
abstracting: (0<=0)
states: 1,863 (3)
.abstracting: (sum(p9, p8, p7, p6, p5)<=sum(p4, p3, p2, p1, p0))
states: 1,147 (3)
.abstracting: (0<=0)
states: 1,863 (3)
.
EG iterations: 0
-> the formula is TRUE
FORMULA SharedMemory-COL-000005-CTLCardinality-07 TRUE TECHNIQUES SEQUENTIAL_PROCESSING DECISION_DIAGRAMS UNFOLDING_TO_PT
MC time: 0m 0.057sec
checking: AX [[EG [~ [p40<=sum(p9, p8, p7, p6, p5)]] | [sum(p14, p13, p12, p11, p10)<=sum(p19, p18, p17, p16, p15) | p40<=0]]]
normalized: ~ [EX [~ [[[sum(p14, p13, p12, p11, p10)<=sum(p19, p18, p17, p16, p15) | p40<=0] | EG [~ [p40<=sum(p9, p8, p7, p6, p5)]]]]]]
abstracting: (p40<=sum(p9, p8, p7, p6, p5))
states: 1,831 (3)
.
EG iterations: 1
abstracting: (p40<=0)
states: 1,620 (3)
abstracting: (sum(p14, p13, p12, p11, p10)<=sum(p19, p18, p17, p16, p15))
states: 21
.-> the formula is FALSE
FORMULA SharedMemory-COL-000005-CTLCardinality-15 FALSE TECHNIQUES SEQUENTIAL_PROCESSING DECISION_DIAGRAMS UNFOLDING_TO_PT
MC time: 0m 0.044sec
checking: [EX [EF [[[sum(p39, p38, p37, p36, p35, p34, p33, p32, p31, p30, p29, p28, p27, p26, p25, p24, p23, p22, p21, p20)<=sum(p9, p8, p7, p6, p5) | sum(p14, p13, p12, p11, p10)<=sum(p4, p3, p2, p1, p0)] | EX [0<=0]]]] & [EX [0<=0] & AX [[~ [sum(p14, p13, p12, p11, p10)<=sum(p4, p3, p2, p1, p0)] | [sum(p39, p38, p37, p36, p35, p34, p33, p32, p31, p30, p29, p28, p27, p26, p25, p24, p23, p22, p21, p20)<=69 & 87<=sum(p14, p13, p12, p11, p10)]]]]]
normalized: [EX [E [true U [[sum(p39, p38, p37, p36, p35, p34, p33, p32, p31, p30, p29, p28, p27, p26, p25, p24, p23, p22, p21, p20)<=sum(p9, p8, p7, p6, p5) | sum(p14, p13, p12, p11, p10)<=sum(p4, p3, p2, p1, p0)] | EX [0<=0]]]] & [EX [0<=0] & ~ [EX [~ [[~ [sum(p14, p13, p12, p11, p10)<=sum(p4, p3, p2, p1, p0)] | [sum(p39, p38, p37, p36, p35, p34, p33, p32, p31, p30, p29, p28, p27, p26, p25, p24, p23, p22, p21, p20)<=69 & 87<=sum(p14, p13, p12, p11, p10)]]]]]]]
abstracting: (87<=sum(p14, p13, p12, p11, p10))
states: 0
abstracting: (sum(p39, p38, p37, p36, p35, p34, p33, p32, p31, p30, p29, p28, p27, p26, p25, p24, p23, p22, p21, p20)<=69)
states: 1,863 (3)
abstracting: (sum(p14, p13, p12, p11, p10)<=sum(p4, p3, p2, p1, p0))
states: 21
.abstracting: (0<=0)
states: 1,863 (3)
.abstracting: (0<=0)
states: 1,863 (3)
.abstracting: (sum(p14, p13, p12, p11, p10)<=sum(p4, p3, p2, p1, p0))
states: 21
abstracting: (sum(p39, p38, p37, p36, p35, p34, p33, p32, p31, p30, p29, p28, p27, p26, p25, p24, p23, p22, p21, p20)<=sum(p9, p8, p7, p6, p5))
states: 1,543 (3)
.-> the formula is TRUE
FORMULA SharedMemory-COL-000005-CTLCardinality-13 TRUE TECHNIQUES SEQUENTIAL_PROCESSING DECISION_DIAGRAMS UNFOLDING_TO_PT
MC time: 1m25.312sec
checking: A [[[sum(p39, p38, p37, p36, p35, p34, p33, p32, p31, p30, p29, p28, p27, p26, p25, p24, p23, p22, p21, p20)<=sum(p9, p8, p7, p6, p5) & AX [1<=0]] & [[sum(p14, p13, p12, p11, p10)<=sum(p39, p38, p37, p36, p35, p34, p33, p32, p31, p30, p29, p28, p27, p26, p25, p24, p23, p22, p21, p20) | sum(p39, p38, p37, p36, p35, p34, p33, p32, p31, p30, p29, p28, p27, p26, p25, p24, p23, p22, p21, p20)<=36] & sum(p19, p18, p17, p16, p15)<=48]] U [~ [AF [[sum(p19, p18, p17, p16, p15)<=sum(p4, p3, p2, p1, p0) & sum(p14, p13, p12, p11, p10)<=12]]] & [EF [sum(p39, p38, p37, p36, p35, p34, p33, p32, p31, p30, p29, p28, p27, p26, p25, p24, p23, p22, p21, p20)<=sum(p9, p8, p7, p6, p5)] | AX [1<=0]]]]
normalized: [~ [EG [~ [[[~ [EX [~ [1<=0]]] | E [true U sum(p39, p38, p37, p36, p35, p34, p33, p32, p31, p30, p29, p28, p27, p26, p25, p24, p23, p22, p21, p20)<=sum(p9, p8, p7, p6, p5)]] & EG [~ [[sum(p19, p18, p17, p16, p15)<=sum(p4, p3, p2, p1, p0) & sum(p14, p13, p12, p11, p10)<=12]]]]]]] & ~ [E [~ [[[~ [EX [~ [1<=0]]] | E [true U sum(p39, p38, p37, p36, p35, p34, p33, p32, p31, p30, p29, p28, p27, p26, p25, p24, p23, p22, p21, p20)<=sum(p9, p8, p7, p6, p5)]] & EG [~ [[sum(p19, p18, p17, p16, p15)<=sum(p4, p3, p2, p1, p0) & sum(p14, p13, p12, p11, p10)<=12]]]]] U [~ [[[sum(p19, p18, p17, p16, p15)<=48 & [sum(p14, p13, p12, p11, p10)<=sum(p39, p38, p37, p36, p35, p34, p33, p32, p31, p30, p29, p28, p27, p26, p25, p24, p23, p22, p21, p20) | sum(p39, p38, p37, p36, p35, p34, p33, p32, p31, p30, p29, p28, p27, p26, p25, p24, p23, p22, p21, p20)<=36]] & [sum(p39, p38, p37, p36, p35, p34, p33, p32, p31, p30, p29, p28, p27, p26, p25, p24, p23, p22, p21, p20)<=sum(p9, p8, p7, p6, p5) & ~ [EX [~ [1<=0]]]]]] & ~ [[[~ [EX [~ [1<=0]]] | E [true U sum(p39, p38, p37, p36, p35, p34, p33, p32, p31, p30, p29, p28, p27, p26, p25, p24, p23, p22, p21, p20)<=sum(p9, p8, p7, p6, p5)]] & EG [~ [[sum(p19, p18, p17, p16, p15)<=sum(p4, p3, p2, p1, p0) & sum(p14, p13, p12, p11, p10)<=12]]]]]]]]]
abstracting: (sum(p14, p13, p12, p11, p10)<=12)
states: 1,863 (3)
abstracting: (sum(p19, p18, p17, p16, p15)<=sum(p4, p3, p2, p1, p0))
states: 1,147 (3)
.
EG iterations: 1
abstracting: (sum(p39, p38, p37, p36, p35, p34, p33, p32, p31, p30, p29, p28, p27, p26, p25, p24, p23, p22, p21, p20)<=sum(p9, p8, p7, p6, p5))
states: 1,543 (3)
abstracting: (1<=0)
states: 0
.abstracting: (1<=0)
states: 0
.abstracting: (sum(p39, p38, p37, p36, p35, p34, p33, p32, p31, p30, p29, p28, p27, p26, p25, p24, p23, p22, p21, p20)<=sum(p9, p8, p7, p6, p5))
states: 1,543 (3)
abstracting: (sum(p39, p38, p37, p36, p35, p34, p33, p32, p31, p30, p29, p28, p27, p26, p25, p24, p23, p22, p21, p20)<=36)
states: 1,863 (3)
abstracting: (sum(p14, p13, p12, p11, p10)<=sum(p39, p38, p37, p36, p35, p34, p33, p32, p31, p30, p29, p28, p27, p26, p25, p24, p23, p22, p21, p20))
states: 0
abstracting: (sum(p19, p18, p17, p16, p15)<=48)
states: 1,863 (3)
abstracting: (sum(p14, p13, p12, p11, p10)<=12)
states: 1,863 (3)
abstracting: (sum(p19, p18, p17, p16, p15)<=sum(p4, p3, p2, p1, p0))
states: 1,147 (3)
.
EG iterations: 1
abstracting: (sum(p39, p38, p37, p36, p35, p34, p33, p32, p31, p30, p29, p28, p27, p26, p25, p24, p23, p22, p21, p20)<=sum(p9, p8, p7, p6, p5))
states: 1,543 (3)
abstracting: (1<=0)
states: 0
.abstracting: (sum(p14, p13, p12, p11, p10)<=12)
states: 1,863 (3)
abstracting: (sum(p19, p18, p17, p16, p15)<=sum(p4, p3, p2, p1, p0))
states: 1,147 (3)
.
EG iterations: 1
abstracting: (sum(p39, p38, p37, p36, p35, p34, p33, p32, p31, p30, p29, p28, p27, p26, p25, p24, p23, p22, p21, p20)<=sum(p9, p8, p7, p6, p5))
states: 1,543 (3)
abstracting: (1<=0)
states: 0
....
EG iterations: 3
-> the formula is TRUE
FORMULA SharedMemory-COL-000005-CTLCardinality-01 TRUE TECHNIQUES SEQUENTIAL_PROCESSING DECISION_DIAGRAMS UNFOLDING_TO_PT
MC time: 0m23.963sec
totally nodes used: 20785 (2.1e+04)
number of garbage collections: 0
fire ops cache: hits/miss/sum: 48497 172673 221170
used/not used/entry size/cache size: 189033 66919831 16 1024MB
basic ops cache: hits/miss/sum: 7693 26550 34243
used/not used/entry size/cache size: 42362 16734854 12 192MB
unary ops cache: hits/miss/sum: 0 0 0
used/not used/entry size/cache size: 0 16777216 8 128MB
abstract ops cache: hits/miss/sum: 0 69210323 69210323
used/not used/entry size/cache size: 1 16777215 12 192MB
state nr cache: hits/miss/sum: 569 2451 3020
used/not used/entry size/cache size: 2451 8386157 32 256MB
max state cache: hits/miss/sum: 0 0 0
used/not used/entry size/cache size: 0 8388608 32 256MB
uniqueHash elements/entry size/size: 67108864 4 256MB
0 67088264
1 20417
2 181
3 2
4 0
5 0
6 0
7 0
8 0
9 0
>= 10 0
Total processing time: 1m55.517sec
BK_STOP 1679262714797
--------------------
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 CTLCardinality -timeout 360 -rebuildPNML
check for maximal unmarked siphon
ok
check for constant places
ok
check if there are places and transitions
ok
check if there are transitions without pre-places
ok
check if at least one transition is enabled in m0
ok
check if there are transitions that can never fire
ok
initing FirstDep: 0m 0.003sec
iterations count:668 (12), effective:30 (0)
initing FirstDep: 0m 0.000sec
iterations count:747 (13), effective:33 (0)
iterations count:55 (1), effective:0 (0)
iterations count:55 (1), effective:0 (0)
iterations count:693 (12), effective:37 (0)
iterations count:55 (1), effective:0 (0)
iterations count:55 (1), effective:0 (0)
iterations count:142 (2), effective:10 (0)
iterations count:142 (2), effective:10 (0)
iterations count:55 (1), effective:0 (0)
iterations count:142 (2), effective:10 (0)
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="SharedMemory-COL-000005"
export BK_EXAMINATION="CTLCardinality"
export BK_TOOL="marciexred"
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 marciexred"
echo " Input is SharedMemory-COL-000005, examination is CTLCardinality"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r362-smll-167891813100545"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"
tar xzf /home/mcc/BenchKit/INPUTS/SharedMemory-COL-000005.tgz
mv SharedMemory-COL-000005 execution
cd execution
if [ "CTLCardinality" = "ReachabilityDeadlock" ] || [ "CTLCardinality" = "UpperBounds" ] || [ "CTLCardinality" = "QuasiLiveness" ] || [ "CTLCardinality" = "StableMarking" ] || [ "CTLCardinality" = "Liveness" ] || [ "CTLCardinality" = "OneSafe" ] || [ "CTLCardinality" = "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 [ "CTLCardinality" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "CTLCardinality" != "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 "CTLCardinality.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property CTLCardinality.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "CTLCardinality.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 [ "CTLCardinality" = "ReachabilityDeadlock" ] || [ "CTLCardinality" = "QuasiLiveness" ] || [ "CTLCardinality" = "StableMarking" ] || [ "CTLCardinality" = "Liveness" ] || [ "CTLCardinality" = "OneSafe" ] ; then
echo "FORMULA_NAME CTLCardinality"
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 ;