fond
Model Checking Contest 2023
13th edition, Paris, France, April 26, 2023 (at TOOLympics II)
Execution of r327-tall-167889199600426
Last Updated
May 14, 2023

About the Execution of LoLa+red for Referendum-COL-0050

Execution Summary
Max Memory
Used (MB)
Time wait (ms) CPU Usage (ms) I/O Wait (ms) Computed Result Execution
Status
234.943 4228.00 7055.00 441.20 FTTFTTTTFFFTFTTT 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.r327-tall-167889199600426.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2023-input.qcow2 cluster_size=65536 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
=====================================================================
Generated by BenchKit 2-5348
Executing tool lolaxred
Input is Referendum-COL-0050, examination is CTLFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r327-tall-167889199600426
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 580K
-rw-r--r-- 1 mcc users 9.4K Feb 26 17:38 CTLCardinality.txt
-rw-r--r-- 1 mcc users 100K Feb 26 17:38 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.5K Feb 26 17:28 CTLFireability.txt
-rw-r--r-- 1 mcc users 51K Feb 26 17:28 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Jan 29 11:41 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.8K Jan 29 11:41 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 4.5K Feb 25 16:42 LTLCardinality.txt
-rw-r--r-- 1 mcc users 31K Feb 25 16:42 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.2K Feb 25 16:42 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K Feb 25 16:42 LTLFireability.xml
-rw-r--r-- 1 mcc users 14K Feb 26 17:46 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 136K Feb 26 17:46 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 14K Feb 26 17:41 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 129K Feb 26 17:41 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K Feb 25 16:42 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K Feb 25 16:42 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 4.9K 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 Referendum-COL-0050-CTLFireability-00
FORMULA_NAME Referendum-COL-0050-CTLFireability-01
FORMULA_NAME Referendum-COL-0050-CTLFireability-02
FORMULA_NAME Referendum-COL-0050-CTLFireability-03
FORMULA_NAME Referendum-COL-0050-CTLFireability-04
FORMULA_NAME Referendum-COL-0050-CTLFireability-05
FORMULA_NAME Referendum-COL-0050-CTLFireability-06
FORMULA_NAME Referendum-COL-0050-CTLFireability-07
FORMULA_NAME Referendum-COL-0050-CTLFireability-08
FORMULA_NAME Referendum-COL-0050-CTLFireability-09
FORMULA_NAME Referendum-COL-0050-CTLFireability-10
FORMULA_NAME Referendum-COL-0050-CTLFireability-11
FORMULA_NAME Referendum-COL-0050-CTLFireability-12
FORMULA_NAME Referendum-COL-0050-CTLFireability-13
FORMULA_NAME Referendum-COL-0050-CTLFireability-14
FORMULA_NAME Referendum-COL-0050-CTLFireability-15

=== Now, execution of the tool begins

BK_START 1679049073962

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=lolaxred
BK_EXAMINATION=CTLFireability
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=Referendum-COL-0050
Applying reductions before tool lola
Invoking reducer
Running Version 202303021504
[2023-03-17 10:31:15] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, CTLFireability, -timeout, 360, -rebuildPNML]
[2023-03-17 10:31:15] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2023-03-17 10:31:15] [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.
[2023-03-17 10:31:15] [WARNING] Using fallBack plugin, rng conformance not checked
[2023-03-17 10:31:16] [INFO ] Load time of PNML (colored model parsed with PNMLFW) : 687 ms
[2023-03-17 10:31:16] [INFO ] Imported 4 HL places and 3 HL transitions for a total of 151 PT places and 101.0 transition bindings in 11 ms.
Parsed 16 properties from file /home/mcc/execution/CTLFireability.xml in 13 ms.
[2023-03-17 10:31:16] [INFO ] Built PT skeleton of HLPN with 4 places and 3 transitions 6 arcs in 4 ms.
[2023-03-17 10:31:16] [INFO ] Skeletonized 16 HLPN properties in 2 ms.
Computed a total of 4 stabilizing places and 3 stable transitions
Complete graph has no SCC; deadlocks are unavoidable. place count 4 transition count 3
Detected that all paths lead to deadlock. Applying this knowledge to assert that all AP eventually converge (and all enablings converge to false).
AF dead knowledge conclusive for 11 formulas.
FORMULA Referendum-COL-0050-CTLFireability-05 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA Referendum-COL-0050-CTLFireability-09 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Remains 1 properties that can be checked using skeleton over-approximation.
Initial state reduction rules removed 1 formulas.
FORMULA Referendum-COL-0050-CTLFireability-03 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Computed a total of 4 stabilizing places and 3 stable transitions
Complete graph has no SCC; deadlocks are unavoidable. place count 4 transition count 3
Detected that all paths lead to deadlock. Applying this knowledge to assert that all AP eventually converge (and all enablings converge to false).
Finished random walk after 0 steps, including 0 resets, run visited all 0 properties in 1 ms. (steps per millisecond=0 )
[2023-03-17 10:31:16] [INFO ] Flatten gal took : 19 ms
[2023-03-17 10:31:16] [INFO ] Flatten gal took : 1 ms
Symmetric sort wr.t. initial and guards and successors and join/free detected :Voters
Arc [3:1*[0]] contains constants of sort Voters
Arc [3:1*[1]] contains constants of sort Voters
Arc [3:1*[2]] contains constants of sort Voters
Arc [3:1*[3]] contains constants of sort Voters
Arc [3:1*[4]] contains constants of sort Voters
Arc [3:1*[5]] contains constants of sort Voters
Arc [3:1*[6]] contains constants of sort Voters
Arc [3:1*[7]] contains constants of sort Voters
Arc [3:1*[8]] contains constants of sort Voters
Arc [3:1*[9]] contains constants of sort Voters
Arc [3:1*[10]] contains constants of sort Voters
Arc [3:1*[11]] contains constants of sort Voters
Arc [3:1*[12]] contains constants of sort Voters
Arc [3:1*[13]] contains constants of sort Voters
Arc [3:1*[14]] contains constants of sort Voters
Arc [3:1*[15]] contains constants of sort Voters
Arc [3:1*[16]] contains constants of sort Voters
Arc [3:1*[17]] contains constants of sort Voters
Arc [3:1*[18]] contains constants of sort Voters
Arc [3:1*[19]] contains constants of sort Voters
Arc [3:1*[20]] contains constants of sort Voters
Arc [3:1*[21]] contains constants of sort Voters
Arc [3:1*[22]] contains constants of sort Voters
Arc [3:1*[23]] contains constants of sort Voters
Arc [3:1*[24]] contains constants of sort Voters
Arc [3:1*[25]] contains constants of sort Voters
Arc [3:1*[26]] contains constants of sort Voters
Arc [3:1*[27]] contains constants of sort Voters
Arc [3:1*[28]] contains constants of sort Voters
Arc [3:1*[29]] contains constants of sort Voters
Arc [3:1*[30]] contains constants of sort Voters
Arc [3:1*[31]] contains constants of sort Voters
Arc [3:1*[32]] contains constants of sort Voters
Arc [3:1*[33]] contains constants of sort Voters
Arc [3:1*[34]] contains constants of sort Voters
Arc [3:1*[35]] contains constants of sort Voters
Arc [3:1*[36]] contains constants of sort Voters
Arc [3:1*[37]] contains constants of sort Voters
Arc [3:1*[38]] contains constants of sort Voters
Arc [3:1*[39]] contains constants of sort Voters
Arc [3:1*[40]] contains constants of sort Voters
Arc [3:1*[41]] contains constants of sort Voters
Arc [3:1*[42]] contains constants of sort Voters
Arc [3:1*[43]] contains constants of sort Voters
Arc [3:1*[44]] contains constants of sort Voters
Arc [3:1*[45]] contains constants of sort Voters
Arc [3:1*[46]] contains constants of sort Voters
Arc [3:1*[47]] contains constants of sort Voters
Arc [3:1*[48]] contains constants of sort Voters
Arc [3:1*[49]] contains constants of sort Voters
Transition start : constants on arcs in [[3:1*[0]], [3:1*[1]], [3:1*[2]], [3:1*[3]], [3:1*[4]], [3:1*[5]], [3:1*[6]], [3:1*[7]], [3:1*[8]], [3:1*[9]], [3:1*[10]], [3:1*[11]], [3:1*[12]], [3:1*[13]], [3:1*[14]], [3:1*[15]], [3:1*[16]], [3:1*[17]], [3:1*[18]], [3:1*[19]], [3:1*[20]], [3:1*[21]], [3:1*[22]], [3:1*[23]], [3:1*[24]], [3:1*[25]], [3:1*[26]], [3:1*[27]], [3:1*[28]], [3:1*[29]], [3:1*[30]], [3:1*[31]], [3:1*[32]], [3:1*[33]], [3:1*[34]], [3:1*[35]], [3:1*[36]], [3:1*[37]], [3:1*[38]], [3:1*[39]], [3:1*[40]], [3:1*[41]], [3:1*[42]], [3:1*[43]], [3:1*[44]], [3:1*[45]], [3:1*[46]], [3:1*[47]], [3:1*[48]], [3:1*[49]]] introduces in Voters(50) partition with 1 elements that refines current partition to 1 subsets.
Symmetric sort wr.t. initial detected :Voters
Symmetric sort wr.t. initial and guards detected :Voters
Applying symmetric unfolding of full symmetric sort :Voters domain size was 50
[2023-03-17 10:31:16] [INFO ] Unfolded HLPN to a Petri net with 4 places and 3 transitions 6 arcs in 14 ms.
[2023-03-17 10:31:16] [INFO ] Unfolded 13 HLPN properties in 0 ms.
Support contains 2 out of 4 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 4/4 places, 3/3 transitions.
Reduce places removed 2 places and 0 transitions.
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 0 with 3 rules applied. Total rules applied 3 place count 2 transition count 2
Applied a total of 3 rules in 5 ms. Remains 2 /4 variables (removed 2) and now considering 2/3 (removed 1) transitions.
// Phase 1: matrix 2 rows 2 cols
[2023-03-17 10:31:16] [INFO ] Computed 0 place invariants in 2 ms
[2023-03-17 10:31:16] [INFO ] Implicit Places using invariants in 340 ms returned []
[2023-03-17 10:31:16] [INFO ] Invariant cache hit.
[2023-03-17 10:31:16] [INFO ] Implicit Places using invariants and state equation in 38 ms returned []
Implicit Place search using SMT with State Equation took 404 ms to find 0 implicit places.
[2023-03-17 10:31:16] [INFO ] Invariant cache hit.
[2023-03-17 10:31:16] [INFO ] Dead Transitions using invariants and state equation in 26 ms found 0 transitions.
Starting structural reductions in LTL mode, iteration 1 : 2/4 places, 2/3 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 438 ms. Remains : 2/4 places, 2/3 transitions.
Support contains 2 out of 2 places after structural reductions.
[2023-03-17 10:31:16] [INFO ] Flatten gal took : 2 ms
[2023-03-17 10:31:16] [INFO ] Flatten gal took : 2 ms
[2023-03-17 10:31:16] [INFO ] Input system was already deterministic with 2 transitions.
Incomplete random walk after 10016 steps, including 188 resets, run finished after 79 ms. (steps per millisecond=126 ) properties (out of 12) seen :7
Incomplete Best-First random walk after 10016 steps, including 188 resets, run finished after 28 ms. (steps per millisecond=357 ) properties (out of 5) seen :0
Incomplete Best-First random walk after 10016 steps, including 188 resets, run finished after 28 ms. (steps per millisecond=357 ) properties (out of 5) seen :0
Incomplete Best-First random walk after 10016 steps, including 188 resets, run finished after 28 ms. (steps per millisecond=357 ) properties (out of 5) seen :0
Incomplete Best-First random walk after 10016 steps, including 188 resets, run finished after 28 ms. (steps per millisecond=357 ) properties (out of 5) seen :0
Incomplete Best-First random walk after 10016 steps, including 188 resets, run finished after 28 ms. (steps per millisecond=357 ) properties (out of 5) seen :0
Running SMT prover for 5 properties.
[2023-03-17 10:31:16] [INFO ] Invariant cache hit.
[2023-03-17 10:31:17] [INFO ] After 52ms SMT Verify possible using all constraints in real domain returned unsat :5 sat :0
Fused 5 Parikh solutions to 0 different solutions.
Parikh walk visited 0 properties in 1 ms.
Successfully simplified 5 atomic propositions for a total of 13 simplifications.
[2023-03-17 10:31:17] [INFO ] Initial state reduction rules for CTL removed 1 formulas.
[2023-03-17 10:31:17] [INFO ] Flatten gal took : 2 ms
FORMULA Referendum-COL-0050-CTLFireability-04 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
[2023-03-17 10:31:17] [INFO ] Flatten gal took : 1 ms
[2023-03-17 10:31:17] [INFO ] Input system was already deterministic with 2 transitions.
FORMULA Referendum-COL-0050-CTLFireability-06 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Computed a total of 2 stabilizing places and 2 stable transitions
Complete graph has no SCC; deadlocks are unavoidable. place count 2 transition count 2
Detected that all paths lead to deadlock. Applying this knowledge to assert that all AP eventually converge (and all enablings converge to false).
Starting structural reductions in LTL mode, iteration 0 : 2/2 places, 2/2 transitions.
Applied a total of 0 rules in 1 ms. Remains 2 /2 variables (removed 0) and now considering 2/2 (removed 0) transitions.
Finished structural reductions in LTL mode , in 1 iterations and 1 ms. Remains : 2/2 places, 2/2 transitions.
[2023-03-17 10:31:17] [INFO ] Flatten gal took : 1 ms
[2023-03-17 10:31:17] [INFO ] Flatten gal took : 1 ms
[2023-03-17 10:31:17] [INFO ] Input system was already deterministic with 2 transitions.
Starting structural reductions in LTL mode, iteration 0 : 2/2 places, 2/2 transitions.
Applied a total of 0 rules in 0 ms. Remains 2 /2 variables (removed 0) and now considering 2/2 (removed 0) transitions.
Finished structural reductions in LTL mode , in 1 iterations and 0 ms. Remains : 2/2 places, 2/2 transitions.
[2023-03-17 10:31:17] [INFO ] Flatten gal took : 0 ms
[2023-03-17 10:31:17] [INFO ] Flatten gal took : 0 ms
[2023-03-17 10:31:17] [INFO ] Input system was already deterministic with 2 transitions.
Starting structural reductions in SI_CTL mode, iteration 0 : 2/2 places, 2/2 transitions.
Applied a total of 0 rules in 2 ms. Remains 2 /2 variables (removed 0) and now considering 2/2 (removed 0) transitions.
Finished structural reductions in SI_CTL mode , in 1 iterations and 2 ms. Remains : 2/2 places, 2/2 transitions.
[2023-03-17 10:31:17] [INFO ] Flatten gal took : 0 ms
[2023-03-17 10:31:17] [INFO ] Flatten gal took : 0 ms
[2023-03-17 10:31:17] [INFO ] Input system was already deterministic with 2 transitions.
Starting structural reductions in LTL mode, iteration 0 : 2/2 places, 2/2 transitions.
Applied a total of 0 rules in 0 ms. Remains 2 /2 variables (removed 0) and now considering 2/2 (removed 0) transitions.
Finished structural reductions in LTL mode , in 1 iterations and 0 ms. Remains : 2/2 places, 2/2 transitions.
[2023-03-17 10:31:17] [INFO ] Flatten gal took : 0 ms
[2023-03-17 10:31:17] [INFO ] Flatten gal took : 1 ms
[2023-03-17 10:31:17] [INFO ] Input system was already deterministic with 2 transitions.
Starting structural reductions in LTL mode, iteration 0 : 2/2 places, 2/2 transitions.
Applied a total of 0 rules in 0 ms. Remains 2 /2 variables (removed 0) and now considering 2/2 (removed 0) transitions.
Finished structural reductions in LTL mode , in 1 iterations and 1 ms. Remains : 2/2 places, 2/2 transitions.
[2023-03-17 10:31:17] [INFO ] Flatten gal took : 1 ms
[2023-03-17 10:31:17] [INFO ] Flatten gal took : 1 ms
[2023-03-17 10:31:17] [INFO ] Input system was already deterministic with 2 transitions.
Starting structural reductions in LTL mode, iteration 0 : 2/2 places, 2/2 transitions.
Applied a total of 0 rules in 0 ms. Remains 2 /2 variables (removed 0) and now considering 2/2 (removed 0) transitions.
Finished structural reductions in LTL mode , in 1 iterations and 1 ms. Remains : 2/2 places, 2/2 transitions.
[2023-03-17 10:31:17] [INFO ] Flatten gal took : 1 ms
[2023-03-17 10:31:17] [INFO ] Flatten gal took : 1 ms
[2023-03-17 10:31:17] [INFO ] Input system was already deterministic with 2 transitions.
Starting structural reductions in SI_CTL mode, iteration 0 : 2/2 places, 2/2 transitions.
Applied a total of 0 rules in 1 ms. Remains 2 /2 variables (removed 0) and now considering 2/2 (removed 0) transitions.
Finished structural reductions in SI_CTL mode , in 1 iterations and 1 ms. Remains : 2/2 places, 2/2 transitions.
[2023-03-17 10:31:17] [INFO ] Flatten gal took : 1 ms
[2023-03-17 10:31:17] [INFO ] Flatten gal took : 1 ms
[2023-03-17 10:31:17] [INFO ] Input system was already deterministic with 2 transitions.
Starting structural reductions in LTL mode, iteration 0 : 2/2 places, 2/2 transitions.
Applied a total of 0 rules in 1 ms. Remains 2 /2 variables (removed 0) and now considering 2/2 (removed 0) transitions.
Finished structural reductions in LTL mode , in 1 iterations and 1 ms. Remains : 2/2 places, 2/2 transitions.
[2023-03-17 10:31:17] [INFO ] Flatten gal took : 1 ms
[2023-03-17 10:31:17] [INFO ] Flatten gal took : 1 ms
[2023-03-17 10:31:17] [INFO ] Input system was already deterministic with 2 transitions.
Starting structural reductions in SI_CTL mode, iteration 0 : 2/2 places, 2/2 transitions.
Applied a total of 0 rules in 1 ms. Remains 2 /2 variables (removed 0) and now considering 2/2 (removed 0) transitions.
Finished structural reductions in SI_CTL mode , in 1 iterations and 1 ms. Remains : 2/2 places, 2/2 transitions.
[2023-03-17 10:31:17] [INFO ] Flatten gal took : 1 ms
[2023-03-17 10:31:17] [INFO ] Flatten gal took : 0 ms
[2023-03-17 10:31:17] [INFO ] Input system was already deterministic with 2 transitions.
Starting structural reductions in LTL mode, iteration 0 : 2/2 places, 2/2 transitions.
Applied a total of 0 rules in 0 ms. Remains 2 /2 variables (removed 0) and now considering 2/2 (removed 0) transitions.
Finished structural reductions in LTL mode , in 1 iterations and 0 ms. Remains : 2/2 places, 2/2 transitions.
[2023-03-17 10:31:17] [INFO ] Flatten gal took : 0 ms
[2023-03-17 10:31:17] [INFO ] Flatten gal took : 1 ms
[2023-03-17 10:31:17] [INFO ] Input system was already deterministic with 2 transitions.
Starting structural reductions in LTL mode, iteration 0 : 2/2 places, 2/2 transitions.
Applied a total of 0 rules in 0 ms. Remains 2 /2 variables (removed 0) and now considering 2/2 (removed 0) transitions.
Finished structural reductions in LTL mode , in 1 iterations and 1 ms. Remains : 2/2 places, 2/2 transitions.
[2023-03-17 10:31:17] [INFO ] Flatten gal took : 0 ms
[2023-03-17 10:31:17] [INFO ] Flatten gal took : 1 ms
[2023-03-17 10:31:17] [INFO ] Input system was already deterministic with 2 transitions.
[2023-03-17 10:31:17] [INFO ] Flatten gal took : 1 ms
[2023-03-17 10:31:17] [INFO ] Flatten gal took : 0 ms
[2023-03-17 10:31:17] [INFO ] Export to MCC of 11 properties in file /home/mcc/execution/CTLFireability.sr.xml took 1 ms.
[2023-03-17 10:31:17] [INFO ] Export to PNML in file /home/mcc/execution/model.sr.pnml of net with 2 places, 2 transitions and 3 arcs took 0 ms.
Total runtime 1765 ms.
There are residual formulas that ITS could not solve within timeout
starting LoLA
BK_INPUT Referendum-COL-0050
BK_EXAMINATION: CTLFireability
bin directory: /home/mcc/BenchKit/bin//../reducer/bin//../../lola/bin/
current directory: /home/mcc/execution/363
CTLFireability

FORMULA Referendum-COL-0050-CTLFireability-01 TRUE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA Referendum-COL-0050-CTLFireability-10 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA Referendum-COL-0050-CTLFireability-07 TRUE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA Referendum-COL-0050-CTLFireability-14 TRUE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA Referendum-COL-0050-CTLFireability-15 TRUE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA Referendum-COL-0050-CTLFireability-12 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA Referendum-COL-0050-CTLFireability-08 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA Referendum-COL-0050-CTLFireability-00 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA Referendum-COL-0050-CTLFireability-13 TRUE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA Referendum-COL-0050-CTLFireability-11 TRUE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA Referendum-COL-0050-CTLFireability-02 TRUE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

BK_STOP 1679049078190

--------------------
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 CTLFireability -timeout 360 -rebuildPNML
lola: MEM LIMIT 32
lola: MEM LIMIT 5
lola: NET
lola: input: PNML file (--pnmlnet)
lola: reading net from /home/mcc/execution/363/model.pnml
lola: reading pnml
lola: PNML file contains place/transition net
lola: finished parsing
lola: closed net file /home/mcc/execution/363/model.pnml
lola: Reading formula.
lola: Using XML format (--xmlformula)
lola: reading XML formula
lola: reading formula from /home/mcc/execution/363/CTLFireability.xml
lola: rewrite Frontend/Parser/formula_rewrite.k:325
lola: rewrite Frontend/Parser/formula_rewrite.k:334
lola: rewrite Frontend/Parser/formula_rewrite.k:314
lola: rewrite Frontend/Parser/formula_rewrite.k:322
lola: rewrite Frontend/Parser/formula_rewrite.k:328
lola: rewrite Frontend/Parser/formula_rewrite.k:296
lola: rewrite Frontend/Parser/formula_rewrite.k:296
lola: rewrite Frontend/Parser/formula_rewrite.k:550
lola: rewrite Frontend/Parser/formula_rewrite.k:544
lola: rewrite Frontend/Parser/formula_rewrite.k:397
lola: rewrite Frontend/Parser/formula_rewrite.k:397
lola: rewrite Frontend/Parser/formula_rewrite.k:325
lola: rewrite Frontend/Parser/formula_rewrite.k:337
lola: rewrite Frontend/Parser/formula_rewrite.k:296
lola: rewrite Frontend/Parser/formula_rewrite.k:322
lola: rewrite Frontend/Parser/formula_rewrite.k:337
lola: rewrite Frontend/Parser/formula_rewrite.k:296
lola: rewrite Frontend/Parser/formula_rewrite.k:296
lola: rewrite Frontend/Parser/formula_rewrite.k:415
lola: rewrite Frontend/Parser/formula_rewrite.k:150
lola: rewrite Frontend/Parser/formula_rewrite.k:296
lola: rewrite Frontend/Parser/formula_rewrite.k:547
lola: RELEASE
lola: RELEASE
lola: rewrite Frontend/Parser/formula_rewrite.k:325
lola: rewrite Frontend/Parser/formula_rewrite.k:337
lola: rewrite Frontend/Parser/formula_rewrite.k:317
lola: rewrite Frontend/Parser/formula_rewrite.k:314
lola: rewrite Frontend/Parser/formula_rewrite.k:322
lola: rewrite Frontend/Parser/formula_rewrite.k:331
lola: rewrite Frontend/Parser/formula_rewrite.k:296
lola: rewrite Frontend/Parser/formula_rewrite.k:296
lola: rewrite Frontend/Parser/formula_rewrite.k:296
lola: rewrite Frontend/Parser/formula_rewrite.k:325
lola: rewrite Frontend/Parser/formula_rewrite.k:328
lola: rewrite Frontend/Parser/formula_rewrite.k:296
lola: rewrite Frontend/Parser/formula_rewrite.k:544
lola: RELEASE
lola: rewrite Frontend/Parser/formula_rewrite.k:547
lola: rewrite Frontend/Parser/formula_rewrite.k:394
lola: rewrite Frontend/Parser/formula_rewrite.k:394
lola: rewrite Frontend/Parser/formula_rewrite.k:454
lola: rewrite Frontend/Parser/formula_rewrite.k:394
lola: rewrite Frontend/Parser/formula_rewrite.k:415
lola: rewrite Frontend/Parser/formula_rewrite.k:147
lola: rewrite Frontend/Parser/formula_rewrite.k:253
lola: rewrite Frontend/Parser/formula_rewrite.k:415
lola: rewrite Frontend/Parser/formula_rewrite.k:147
lola: rewrite Frontend/Parser/formula_rewrite.k:296
lola: rewrite Frontend/Parser/formula_rewrite.k:325
lola: rewrite Frontend/Parser/formula_rewrite.k:337
lola: rewrite Frontend/Parser/formula_rewrite.k:317
lola: rewrite Frontend/Parser/formula_rewrite.k:325
lola: rewrite Frontend/Parser/formula_rewrite.k:328
lola: rewrite Frontend/Parser/formula_rewrite.k:296
lola: rewrite Frontend/Parser/formula_rewrite.k:296
lola: rewrite Frontend/Parser/formula_rewrite.k:296
lola: rewrite Frontend/Parser/formula_rewrite.k:250
lola: RELEASE
lola: rewrite Frontend/Parser/formula_rewrite.k:325
lola: rewrite Frontend/Parser/formula_rewrite.k:337
lola: rewrite Frontend/Parser/formula_rewrite.k:296
lola: rewrite Frontend/Parser/formula_rewrite.k:296
lola: RELEASE
lola: rewrite Frontend/Parser/formula_rewrite.k:415
lola: rewrite Frontend/Parser/formula_rewrite.k:147
lola: rewrite Frontend/Parser/formula_rewrite.k:322
lola: rewrite Frontend/Parser/formula_rewrite.k:337
lola: rewrite Frontend/Parser/formula_rewrite.k:325
lola: rewrite Frontend/Parser/formula_rewrite.k:331
lola: rewrite Frontend/Parser/formula_rewrite.k:296
lola: rewrite Frontend/Parser/formula_rewrite.k:296
lola: rewrite Frontend/Parser/formula_rewrite.k:553
lola: RELEASE
lola: rewrite Frontend/Parser/formula_rewrite.k:451
lola: rewrite Frontend/Parser/formula_rewrite.k:325
lola: rewrite Frontend/Parser/formula_rewrite.k:331
lola: rewrite Frontend/Parser/formula_rewrite.k:296
lola: rewrite Frontend/Parser/formula_rewrite.k:317
lola: rewrite Frontend/Parser/formula_rewrite.k:322
lola: rewrite Frontend/Parser/formula_rewrite.k:334
lola: rewrite Frontend/Parser/formula_rewrite.k:322
lola: rewrite Frontend/Parser/formula_rewrite.k:328
lola: rewrite Frontend/Parser/formula_rewrite.k:296
lola: rewrite Frontend/Parser/formula_rewrite.k:317
lola: rewrite Frontend/Parser/formula_rewrite.k:322
lola: rewrite Frontend/Parser/formula_rewrite.k:328
lola: rewrite Frontend/Parser/formula_rewrite.k:296
lola: rewrite Frontend/Parser/formula_rewrite.k:296
lola: rewrite Frontend/Parser/formula_rewrite.k:451
lola: rewrite Frontend/Parser/formula_rewrite.k:547
lola: rewrite Frontend/Parser/formula_rewrite.k:253
lola: Created skeleton in 0.000000 secs.
lola: Created skeleton in 0.000000 secs.
lola: Created skeleton in 0.000000 secs.
lola: Created skeleton in 0.000000 secs.
lola: Rule S: 0 transitions removed,0 places removed
lola: Created skeleton in 0.000000 secs.
lola: Created skeleton in 0.000000 secs.
lola: Created skeleton in 0.000000 secs.
lola: Created skeleton in 0.000000 secs.
lola: Created skeleton in 0.000000 secs.
lola: Created skeleton in 0.000000 secs.
lola: rewrite Frontend/Parser/formula_rewrite.k:806
lola: rewrite Frontend/Parser/formula_rewrite.k:807
lola: rewrite Frontend/Parser/formula_rewrite.k:807
lola: LAUNCH task # 15 (type EXCL) for 12 Referendum-COL-0050-CTLFireability-08
lola: time limit : 225 sec
lola: memory limit: 32 pages
lola: FINISHED task # 15 (type EXCL) for Referendum-COL-0050-CTLFireability-08
lola: result : false
lola: markings : 50
lola: fired transitions : 49
lola: time used : 0.000000
lola: memory pages used : 1
lola: rewrite Frontend/Parser/formula_rewrite.k:807
lola: rewrite Frontend/Parser/formula_rewrite.k:813
lola: rewrite Frontend/Parser/formula_rewrite.k:812
lola: rewrite Frontend/Parser/formula_rewrite.k:813
lola: rewrite Frontend/Parser/formula_rewrite.k:812
lola: rewrite Frontend/Parser/formula_rewrite.k:806
lola: LAUNCH task # 4 (type EXCL) for 3 Referendum-COL-0050-CTLFireability-01
lola: time limit : 240 sec
lola: memory limit: 32 pages
lola: rewrite Frontend/Parser/formula_rewrite.k:807
lola: rewrite Frontend/Parser/formula_rewrite.k:811
lola: rewrite Frontend/Parser/formula_rewrite.k:815
lola: rewrite Frontend/Parser/formula_rewrite.k:806
lola: rewrite Frontend/Parser/formula_rewrite.k:813
lola: rewrite Frontend/Parser/formula_rewrite.k:811
lola: FINISHED task # 4 (type EXCL) for Referendum-COL-0050-CTLFireability-01
lola: result : true
lola: markings : 52
lola: fired transitions : 151
lola: time used : 0.000000
lola: memory pages used : 1
lola: LAUNCH task # 24 (type EXCL) for 23 Referendum-COL-0050-CTLFireability-10
lola: time limit : 257 sec
lola: memory limit: 32 pages
lola: FINISHED task # 24 (type EXCL) for Referendum-COL-0050-CTLFireability-10
lola: result : false
lola: markings : 52
lola: fired transitions : 51
lola: time used : 0.000000
lola: memory pages used : 1
lola: rewrite Frontend/Parser/formula_rewrite.k:808
lola: rewrite Frontend/Parser/formula_rewrite.k:811
lola: rewrite Frontend/Parser/formula_rewrite.k:815
lola: rewrite Frontend/Parser/formula_rewrite.k:812
lola: rewrite Frontend/Parser/formula_rewrite.k:807
lola: rewrite Frontend/Parser/formula_rewrite.k:807
lola: rewrite Frontend/Parser/formula_rewrite.k:812
lola: rewrite Frontend/Parser/formula_rewrite.k:811
lola: rewrite Frontend/Parser/formula_rewrite.k:813
lola: rewrite Frontend/Parser/formula_rewrite.k:813
lola: LAUNCH task # 10 (type EXCL) for 9 Referendum-COL-0050-CTLFireability-07
lola: time limit : 300 sec
lola: memory limit: 32 pages
lola: FINISHED task # 10 (type EXCL) for Referendum-COL-0050-CTLFireability-07
lola: result : true
lola: markings : 51
lola: fired transitions : 202
lola: time used : 0.000000
lola: memory pages used : 1
lola: rewrite Frontend/Parser/formula_rewrite.k:806
lola: rewrite Frontend/Parser/formula_rewrite.k:807
lola: rewrite Frontend/Parser/formula_rewrite.k:806
lola: rewrite Frontend/Parser/formula_rewrite.k:806
lola: LAUNCH task # 36 (type EXCL) for 35 Referendum-COL-0050-CTLFireability-14
lola: time limit : 327 sec
lola: memory limit: 32 pages
lola: FINISHED task # 36 (type EXCL) for Referendum-COL-0050-CTLFireability-14
lola: result : true
lola: markings : 52
lola: fired transitions : 105
lola: time used : 0.000000
lola: memory pages used : 1
lola: Created skeleton in 0.000000 secs.
lola: Created skeleton in 0.000000 secs.
lola: Created skeleton in 0.000000 secs.
lola: rewrite Frontend/Parser/formula_rewrite.k:808
lola: rewrite Frontend/Parser/formula_rewrite.k:813
lola: LAUNCH task # 21 (type EXCL) for 12 Referendum-COL-0050-CTLFireability-08
lola: time limit : 450 sec
lola: memory limit: 32 pages
lola: rewrite Frontend/Parser/formula_rewrite.k:813
lola: rewrite Frontend/Parser/formula_rewrite.k:812
lola: rewrite Frontend/Parser/formula_rewrite.k:806
lola: rewrite Frontend/Parser/formula_rewrite.k:806
lola: rewrite Frontend/Parser/formula_rewrite.k:808
lola: rewrite Frontend/Parser/formula_rewrite.k:815
lola: rewrite Frontend/Parser/formula_rewrite.k:806
lola: rewrite Frontend/Parser/formula_rewrite.k:813
lola: rewrite Frontend/Parser/formula_rewrite.k:807
lola: rewrite Frontend/Parser/formula_rewrite.k:812
lola: rewrite Frontend/Parser/formula_rewrite.k:808
lola: rewrite Frontend/Parser/formula_rewrite.k:813
lola: rewrite Frontend/Parser/formula_rewrite.k:813
lola: rewrite Frontend/Parser/formula_rewrite.k:810
lola: rewrite Frontend/Parser/formula_rewrite.k:807
lola: FINISHED task # 21 (type EXCL) for Referendum-COL-0050-CTLFireability-08
lola: result : false
lola: markings : 1
lola: fired transitions : 1
lola: time used : 0.000000
lola: memory pages used : 1
lola: rewrite Frontend/Parser/formula_rewrite.k:726
lola: rewrite Frontend/Parser/formula_rewrite.k:788
lola: LAUNCH task # 39 (type EXCL) for 38 Referendum-COL-0050-CTLFireability-15
lola: time limit : 514 sec
lola: memory limit: 32 pages
lola: rewrite Frontend/Parser/formula_rewrite.k:810
lola: rewrite Frontend/Parser/formula_rewrite.k:815
lola: rewrite Frontend/Parser/formula_rewrite.k:813
lola: rewrite Frontend/Parser/formula_rewrite.k:806
lola: rewrite Frontend/Parser/formula_rewrite.k:813
lola: rewrite Frontend/Parser/formula_rewrite.k:806
lola: rewrite Frontend/Parser/formula_rewrite.k:813
lola: rewrite Frontend/Parser/formula_rewrite.k:806
lola: rewrite Frontend/Parser/formula_rewrite.k:807
lola: rewrite Frontend/Parser/formula_rewrite.k:808
lola: rewrite Frontend/Parser/formula_rewrite.k:814
lola: rewrite Frontend/Parser/formula_rewrite.k:812
lola: rewrite Frontend/Parser/formula_rewrite.k:808
lola: rewrite Frontend/Parser/formula_rewrite.k:806
lola: rewrite Frontend/Parser/formula_rewrite.k:812
lola: rewrite Frontend/Parser/formula_rewrite.k:812
lola: rewrite Frontend/Parser/formula_rewrite.k:814
lola: FINISHED task # 39 (type EXCL) for Referendum-COL-0050-CTLFireability-15
lola: result : true
lola: markings : 52
lola: fired transitions : 255
lola: time used : 0.000000
lola: memory pages used : 1
lola: LAUNCH task # 30 (type EXCL) for 29 Referendum-COL-0050-CTLFireability-12
lola: time limit : 600 sec
lola: memory limit: 32 pages
lola: FINISHED task # 30 (type EXCL) for Referendum-COL-0050-CTLFireability-12
lola: result : false
lola: markings : 51
lola: fired transitions : 51
lola: time used : 0.000000
lola: memory pages used : 1
lola: LAUNCH task # 19 (type EXCL) for 12 Referendum-COL-0050-CTLFireability-08
lola: time limit : 720 sec
lola: memory limit: 32 pages
lola: FINISHED task # 19 (type EXCL) for Referendum-COL-0050-CTLFireability-08
lola: result : false
lola: markings : 51
lola: fired transitions : 101
lola: time used : 0.000000
lola: memory pages used : 1
lola: LAUNCH task # 1 (type EXCL) for 0 Referendum-COL-0050-CTLFireability-00
lola: time limit : 900 sec
lola: memory limit: 32 pages
lola: FINISHED task # 1 (type EXCL) for Referendum-COL-0050-CTLFireability-00
lola: result : false
lola: markings : 52
lola: fired transitions : 204
lola: time used : 0.000000
lola: memory pages used : 1
lola: LAUNCH task # 41 (type EXCL) for 32 Referendum-COL-0050-CTLFireability-13
lola: time limit : 1200 sec
lola: memory limit: 32 pages
lola: FINISHED task # 41 (type EXCL) for Referendum-COL-0050-CTLFireability-13
lola: result : false
lola: markings : 2
lola: fired transitions : 1
lola: time used : 0.000000
lola: memory pages used : 1
lola: LAUNCH task # 27 (type EXCL) for 26 Referendum-COL-0050-CTLFireability-11
lola: time limit : 1800 sec
lola: memory limit: 32 pages
lola: FINISHED task # 27 (type EXCL) for Referendum-COL-0050-CTLFireability-11
lola: result : true
lola: markings : 52
lola: fired transitions : 104
lola: time used : 0.000000
lola: memory pages used : 1
lola: LAUNCH task # 7 (type EXCL) for 6 Referendum-COL-0050-CTLFireability-02
lola: time limit : 3600 sec
lola: memory limit: 32 pages
lola: FINISHED task # 7 (type EXCL) for Referendum-COL-0050-CTLFireability-02
lola: result : true
lola: markings : 52
lola: fired transitions : 208
lola: time used : 0.000000
lola: memory pages used : 1
lola: Portfolio finished: no open formulas

FINAL RESULTS
FINISHED FORMULA: CATEGORY VALUE PRODUCED BY
Referendum-COL-0050-CTLFireability-00: CTL false CTL model checker
Referendum-COL-0050-CTLFireability-01: CTL true CTL model checker
Referendum-COL-0050-CTLFireability-02: CTL true CTL model checker
Referendum-COL-0050-CTLFireability-07: CTL true CTL model checker
Referendum-COL-0050-CTLFireability-08: DISJ false DISJ
Referendum-COL-0050-CTLFireability-10: CTL false CTL model checker
Referendum-COL-0050-CTLFireability-11: CTL true CTL model checker
Referendum-COL-0050-CTLFireability-12: CTL false CTL model checker
Referendum-COL-0050-CTLFireability-13: EFAG true tscc_search
Referendum-COL-0050-CTLFireability-14: CTL true CTL model checker
Referendum-COL-0050-CTLFireability-15: CTL true CTL model checker


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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="Referendum-COL-0050"
export BK_EXAMINATION="CTLFireability"
export BK_TOOL="lolaxred"
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 lolaxred"
echo " Input is Referendum-COL-0050, examination is CTLFireability"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r327-tall-167889199600426"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/Referendum-COL-0050.tgz
mv Referendum-COL-0050 execution
cd execution
if [ "CTLFireability" = "ReachabilityDeadlock" ] || [ "CTLFireability" = "UpperBounds" ] || [ "CTLFireability" = "QuasiLiveness" ] || [ "CTLFireability" = "StableMarking" ] || [ "CTLFireability" = "Liveness" ] || [ "CTLFireability" = "OneSafe" ] || [ "CTLFireability" = "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 [ "CTLFireability" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "CTLFireability" != "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 "CTLFireability.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property CTLFireability.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "CTLFireability.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 '' CTLFireability.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "CTLFireability" = "ReachabilityDeadlock" ] || [ "CTLFireability" = "QuasiLiveness" ] || [ "CTLFireability" = "StableMarking" ] || [ "CTLFireability" = "Liveness" ] || [ "CTLFireability" = "OneSafe" ] ; then
echo "FORMULA_NAME CTLFireability"
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 ;