fond
Model Checking Contest 2019
9th edition, Prague, Czech Republic, April 7, 2019 (TOOLympics)
Execution of r181-csrt-155344534900188
Last Updated
Apr 15, 2019

About the Execution of LoLA for FamilyReunion-PT-L00010M0001C001P001G001

Execution Summary
Max Memory
Used (MB)
Time wait (ms) CPU Usage (ms) I/O Wait (ms) Computed Result Execution
Status
4287.750 12116.00 14493.00 17.30 FTTFFTTFTTFFFFTT normal

Execution Chart

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

Trace from the execution

Formatting '/local/x2003239/mcc2019-input.r181-csrt-155344534900188.qcow2', fmt=qcow2 size=4294967296 backing_file=/local/x2003239/mcc2019-input.qcow2 encryption=off cluster_size=65536 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
......................
=====================================================================
Generated by BenchKit 2-3954
Executing tool lola
Input is FamilyReunion-PT-L00010M0001C001P001G001, examination is ReachabilityCardinality
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r181-csrt-155344534900188
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 1.3M
-rw-r--r-- 1 mcc users 3.7K Mar 24 07:03 CTLCardinality.txt
-rw-r--r-- 1 mcc users 18K Mar 24 07:03 CTLCardinality.xml
-rw-r--r-- 1 mcc users 4.3K Mar 24 06:54 CTLFireability.txt
-rw-r--r-- 1 mcc users 22K Mar 24 06:54 CTLFireability.xml
-rw-r--r-- 1 mcc users 2.8K Mar 24 06:50 LTLCardinality.txt
-rw-r--r-- 1 mcc users 12K Mar 24 06:50 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.6K Mar 24 06:48 LTLFireability.txt
-rw-r--r-- 1 mcc users 9.9K Mar 24 06:48 LTLFireability.xml
-rw-r--r-- 1 mcc users 1 Mar 24 00:18 NewModel
-rw-r--r-- 1 mcc users 3.7K Mar 24 06:38 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 16K Mar 24 06:38 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 131 Mar 24 06:28 ReachabilityDeadlock.txt
-rw-r--r-- 1 mcc users 369 Mar 24 06:28 ReachabilityDeadlock.xml
-rw-r--r-- 1 mcc users 3.9K Mar 24 06:29 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 17K Mar 24 06:29 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 2.0K Mar 24 06:46 UpperBounds.txt
-rw-r--r-- 1 mcc users 4.0K Mar 24 06:46 UpperBounds.xml
-rw-r--r-- 1 mcc users 5 Mar 24 00:18 equiv_col

-rw-r--r-- 1 mcc users 24 Mar 24 00:18 instance
-rw-r--r-- 1 mcc users 6 Mar 24 00:18 iscolored
-rw-r--r-- 1 mcc users 1.1M Mar 24 00:18 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 FamilyReunion-PT-L00010M0001C001P001G001-ReachabilityCardinality-00
FORMULA_NAME FamilyReunion-PT-L00010M0001C001P001G001-ReachabilityCardinality-01
FORMULA_NAME FamilyReunion-PT-L00010M0001C001P001G001-ReachabilityCardinality-02
FORMULA_NAME FamilyReunion-PT-L00010M0001C001P001G001-ReachabilityCardinality-03
FORMULA_NAME FamilyReunion-PT-L00010M0001C001P001G001-ReachabilityCardinality-04
FORMULA_NAME FamilyReunion-PT-L00010M0001C001P001G001-ReachabilityCardinality-05
FORMULA_NAME FamilyReunion-PT-L00010M0001C001P001G001-ReachabilityCardinality-06
FORMULA_NAME FamilyReunion-PT-L00010M0001C001P001G001-ReachabilityCardinality-07
FORMULA_NAME FamilyReunion-PT-L00010M0001C001P001G001-ReachabilityCardinality-08
FORMULA_NAME FamilyReunion-PT-L00010M0001C001P001G001-ReachabilityCardinality-09
FORMULA_NAME FamilyReunion-PT-L00010M0001C001P001G001-ReachabilityCardinality-10
FORMULA_NAME FamilyReunion-PT-L00010M0001C001P001G001-ReachabilityCardinality-11
FORMULA_NAME FamilyReunion-PT-L00010M0001C001P001G001-ReachabilityCardinality-12
FORMULA_NAME FamilyReunion-PT-L00010M0001C001P001G001-ReachabilityCardinality-13
FORMULA_NAME FamilyReunion-PT-L00010M0001C001P001G001-ReachabilityCardinality-14
FORMULA_NAME FamilyReunion-PT-L00010M0001C001P001G001-ReachabilityCardinality-15

=== Now, execution of the tool begins

BK_START 1553472264965

info: Time: 3600 - MCC
vrfy: Checking ReachabilityCardinality @ FamilyReunion-PT-L00010M0001C001P001G001 @ 3570 seconds

FORMULA FamilyReunion-PT-L00010M0001C001P001G001-ReachabilityCardinality-07 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA FamilyReunion-PT-L00010M0001C001P001G001-ReachabilityCardinality-09 TRUE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA FamilyReunion-PT-L00010M0001C001P001G001-ReachabilityCardinality-11 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA FamilyReunion-PT-L00010M0001C001P001G001-ReachabilityCardinality-15 TRUE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA FamilyReunion-PT-L00010M0001C001P001G001-ReachabilityCardinality-00 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA FamilyReunion-PT-L00010M0001C001P001G001-ReachabilityCardinality-02 TRUE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA FamilyReunion-PT-L00010M0001C001P001G001-ReachabilityCardinality-03 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA FamilyReunion-PT-L00010M0001C001P001G001-ReachabilityCardinality-12 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA FamilyReunion-PT-L00010M0001C001P001G001-ReachabilityCardinality-04 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA FamilyReunion-PT-L00010M0001C001P001G001-ReachabilityCardinality-01 TRUE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA FamilyReunion-PT-L00010M0001C001P001G001-ReachabilityCardinality-10 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA FamilyReunion-PT-L00010M0001C001P001G001-ReachabilityCardinality-14 TRUE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA FamilyReunion-PT-L00010M0001C001P001G001-ReachabilityCardinality-06 TRUE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA FamilyReunion-PT-L00010M0001C001P001G001-ReachabilityCardinality-13 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA FamilyReunion-PT-L00010M0001C001P001G001-ReachabilityCardinality-05 TRUE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA FamilyReunion-PT-L00010M0001C001P001G001-ReachabilityCardinality-08 TRUE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT
vrfy: finished
info: timeLeft: 3558
rslt: Output for ReachabilityCardinality @ FamilyReunion-PT-L00010M0001C001P001G001

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"type": "reachability preserving/insertion"
},
"threads": 1,
"type": "dfs"
},
"stateequation":
{
"literals": 2,
"problems": 2
},
"type": "invariance",
"workflow": "stateequation||search"
}
},

{
"call":
{
"dynamic_timelimit": true,
"localtimelimit": 711
},
"exit":
{
"localtimelimitreached": false
},
"formula":
{
"count":
{
"A": 0,
"E": 1,
"F": 1,
"G": 0,
"U": 0,
"X": 0,
"aconj": 1,
"adisj": 0,
"aneg": 0,
"comp": 2,
"cont": 0,
"dl": 0,
"fir": 0,
"nodl": 0,
"place_references": 4,
"taut": 0,
"tconj": 0,
"tdisj": 0,
"tneg": 0,
"transition_references": 0,
"unfir": 0,
"visible_places": 4,
"visible_transitions": 0
},
"processed": "E (F (((l5_10_1 + 1 <= l22_7) AND (ml0_7_1 <= gl1_4_N))))",
"processed_size": 57,
"rewrites": 10
},
"result":
{
"edges": 54,
"markings": 55,
"produced_by": "state space",
"value": true
},
"task":
{
"compoundnumber": 11,
"search":
{
"store":
{
"encoder": "simple compression",
"type": "prefix"
},
"stubborn":
{
"type": "reachability preserving/insertion"
},
"threads": 1,
"type": "dfs"
},
"stateequation":
{
"literals": 2,
"problems": 2
},
"type": "reachability",
"workflow": "stateequation||search"
}
},

{
"call":
{
"dynamic_timelimit": true,
"localtimelimit": 889
},
"exit":
{
"localtimelimitreached": false
},
"formula":
{
"count":
{
"A": 0,
"E": 1,
"F": 1,
"G": 0,
"U": 0,
"X": 0,
"aconj": 1,
"adisj": 1,
"aneg": 0,
"comp": 2,
"cont": 0,
"dl": 0,
"fir": 0,
"nodl": 0,
"place_references": 4,
"taut": 0,
"tconj": 0,
"tdisj": 0,
"tneg": 0,
"transition_references": 0,
"unfir": 0,
"visible_places": 4,
"visible_transitions": 0
},
"processed": "E (F ((((gl0_7_0 + 1 <= l28_0) OR (p4_8_1 + 1 <= l20_10)))))",
"processed_size": 61,
"rewrites": 10
},
"result":
{
"edges": 78,
"markings": 79,
"produced_by": "state space",
"value": true
},
"task":
{
"compoundnumber": 12,
"search":
{
"store":
{
"encoder": "simple compression",
"type": "prefix"
},
"stubborn":
{
"type": "reachability preserving/insertion"
},
"threads": 1,
"type": "dfs"
},
"stateequation":
{
"literals": 2,
"problems": 2
},
"type": "reachability",
"workflow": "stateequation||search"
}
},

{
"call":
{
"dynamic_timelimit": true,
"localtimelimit": 1186
},
"exit":
{
"localtimelimitreached": false
},
"formula":
{
"count":
{
"A": 1,
"E": 0,
"F": 0,
"G": 1,
"U": 0,
"X": 0,
"aconj": 1,
"adisj": 1,
"aneg": 0,
"comp": 3,
"cont": 0,
"dl": 0,
"fir": 0,
"nodl": 0,
"place_references": 5,
"taut": 0,
"tconj": 0,
"tdisj": 0,
"tneg": 0,
"transition_references": 0,
"unfir": 0,
"visible_places": 5,
"visible_transitions": 0
},
"processed": "A (G (((l14_9 <= m6_7_0) AND ((l4_1_1 <= 0) OR (m3_10_1 + 1 <= m1_7_0)))))",
"processed_size": 75,
"rewrites": 11
},
"result":
{
"edges": 8,
"markings": 9,
"produced_by": "state space",
"value": false
},
"task":
{
"compoundnumber": 13,
"search":
{
"store":
{
"encoder": "simple compression",
"type": "prefix"
},
"stubborn":
{
"type": "reachability preserving/insertion"
},
"threads": 1,
"type": "dfs"
},
"stateequation":
{
"literals": 3,
"problems": 2
},
"type": "invariance",
"workflow": "stateequation||search"
}
},

{
"call":
{
"dynamic_timelimit": true,
"localtimelimit": 1779
},
"exit":
{
"localtimelimitreached": false
},
"formula":
{
"count":
{
"A": 0,
"E": 1,
"F": 1,
"G": 0,
"U": 0,
"X": 0,
"aconj": 1,
"adisj": 1,
"aneg": 0,
"comp": 3,
"cont": 0,
"dl": 0,
"fir": 0,
"nodl": 0,
"place_references": 6,
"taut": 0,
"tconj": 0,
"tdisj": 0,
"tneg": 0,
"transition_references": 0,
"unfir": 0,
"visible_places": 6,
"visible_transitions": 0
},
"processed": "E (F ((((lc1_2 + 1 <= ml2_6_1) OR (m2_8_1 + 1 <= ml1_3_1)) AND (l20_4 <= l33_9))))",
"processed_size": 83,
"rewrites": 10
},
"result":
{
"edges": 13,
"markings": 14,
"produced_by": "state space",
"value": true
},
"task":
{
"compoundnumber": 14,
"search":
{
"store":
{
"encoder": "simple compression",
"type": "prefix"
},
"stubborn":
{
"type": "reachability preserving/insertion"
},
"threads": 1,
"type": "dfs"
},
"stateequation":
{
"literals": 4,
"problems": 2
},
"type": "reachability",
"workflow": "stateequation||search"
}
},

{
"call":
{
"dynamic_timelimit": true,
"localtimelimit": 3559
},
"exit":
{
"localtimelimitreached": false
},
"formula":
{
"count":
{
"A": 0,
"E": 1,
"F": 1,
"G": 0,
"U": 0,
"X": 0,
"aconj": 1,
"adisj": 2,
"aneg": 0,
"comp": 5,
"cont": 0,
"dl": 0,
"fir": 0,
"nodl": 0,
"place_references": 9,
"taut": 0,
"tconj": 0,
"tdisj": 0,
"tneg": 0,
"transition_references": 0,
"unfir": 0,
"visible_places": 9,
"visible_transitions": 0
},
"processed": "E (F ((((ml4_5_1 + 1 <= lp0_1) OR (lm2_6_0 + 1 <= l33_10)) AND ((lg0_6 <= l1_6) OR (l32_8 <= m2_8_1) OR (1 <= g3_9_1)))))",
"processed_size": 124,
"rewrites": 10
},
"result":
{
"edges": 77,
"markings": 78,
"produced_by": "state space",
"value": true
},
"task":
{
"compoundnumber": 15,
"search":
{
"store":
{
"encoder": "simple compression",
"type": "prefix"
},
"stubborn":
{
"type": "reachability preserving/insertion"
},
"threads": 1,
"type": "dfs"
},
"stateequation":
{
"literals": 12,
"problems": 6
},
"type": "reachability",
"workflow": "stateequation||search"
}
}
],
"exit":
{
"error": null,
"memory": 37052,
"runtime": 11.000000,
"signal": null,
"timelimitreached": false
},
"files":
{
"formula": "ReachabilityCardinality.xml",
"net": "model.pnml"
},
"formula":
{
"skeleton": "A(G(**)) : E(F(**)) : E(F(**)) : A(G(**)) : A(G(**)) : E(F(**)) : E(F(**)) : FALSE : E(F(**)) : TRUE : A(G(**)) : FALSE : A(G(**)) : A(G(**)) : E(F(**)) : E(F(**))"
},
"net":
{
"arcs": 3799,
"conflict_clusters": 948,
"places": 1475,
"places_significant": 1133,
"singleton_clusters": 0,
"transitions": 1234
},
"result":
{
"preliminary_value": "no yes yes no no yes yes no yes yes no no no no yes yes ",
"value": "no yes yes no no yes yes no yes yes no no no no yes yes "
},
"task":
{
"type": "compound"
}
}
lola: LoLA will run for 3570 seconds at most (--timelimit)
lola: NET
lola: input: PNML file (--pnml)
lola: reading net from model.pnml
lola: reading pnml
lola: PNML file contains place/transition net
lola: finished parsing
lola: closed net file model.pnml
lola: 2709/268435456 symbol table entries, 0 collisions
lola: preprocessing...
lola: Size of bit vector: 47200
lola: finding significant places
lola: 1475 places, 1234 transitions, 1133 significant places
lola: compute conflict clusters
lola: computed conflict clusters
lola: Computing conflicting sets
lola: Computing back conflicting sets
lola: TASK
lola: Reading formula in XML format (--xmlformula)
lola: reading pnml
lola: reading formula from ReachabilityCardinality.xml
lola: LP says that atomic proposition is always false: (2 <= l35_1)
lola: LP says that atomic proposition is always false: (3 <= cl2_5_0)
lola: LP says that atomic proposition is always false: (3 <= m7_5_1)
lola: LP says that atomic proposition is always false: (2 <= c3_6_1)
lola: LP says that atomic proposition is always false: (2 <= l35_4)
lola: LP says that atomic proposition is always false: (3 <= p4_7_1)
lola: LP says that atomic proposition is always false: (3 <= lc1_2)
lola: LP says that atomic proposition is always false: (3 <= c6_2_1)
lola: LP says that atomic proposition is always false: (3 <= lm0_7)
lola: LP says that atomic proposition is always false: (3 <= cg0_3)
lola: A (G ((m5_10_1 <= m4_2_1))) : E (F ((((1 <= l30_0)) AND (l19_7 <= l4_1_1)))) : E (F ((l5_3_0 + 1 <= pl1_7_1))) : A (G ((l35_8 <= l39_3_Y))) : A (G ((l5_2_0 <= ml3_9_1))) : E (F ((((lc1_2 + 1 <= ml2_6_1) OR (m2_8_1 + 1 <= ml1_3_1)) AND (l20_4 <= l33_9)))) : E (F ((((gl0_7_0 + 1 <= l28_0) OR (p4_8_1 + 1 <= l20_10))))) : E (F ((2 <= c3_6_1))) : E (F ((((ml4_5_1 + 1 <= lp0_1) OR (lm2_6_0 + 1 <= l33_10)) AND ((lg0_6 <= l1_6) OR (l32_8 <= m2_8_1) OR (1 <= g3_9_1))))) : A (G (())) : A (G ((((c3_6_1 <= gl1_8_N) AND (g1_4_1 <= ml4_10_1))))) : E (F (())) : A (G ((gl1_5_N <= ml3_1_0))) : A (G (((l14_9 <= m6_7_0) AND ((l4_1_1 <= 0) OR (m3_10_1 + 1 <= m1_7_0))))) : E (F (((l5_10_1 + 1 <= l22_7) AND (ml0_7_1 <= gl1_4_N)))) : E (F (((1 <= l5_4_1))))
lola: rewrite Frontend/Parser/formula_rewrite.k:98
lola: rewrite Frontend/Parser/formula_rewrite.k:157
lola: rewrite Frontend/Parser/formula_rewrite.k:148
lola: rewrite Frontend/Parser/formula_rewrite.k:100
lola: rewrite Frontend/Parser/formula_rewrite.k:160
lola: rewrite Frontend/Parser/formula_rewrite.k:151
lola: rewrite Frontend/Parser/formula_rewrite.k:98
lola: rewrite Frontend/Parser/formula_rewrite.k:157
lola: rewrite Frontend/Parser/formula_rewrite.k:148
lola: computing a collection of formulas
lola: RUNNING
lola: subprocess 0 will run for 222 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: FALSE
lola: ========================================
lola: SUBTASK
lola: checking initial satisfaction
lola: processed formula: FALSE
lola: processed formula length: 5
lola: 9 rewrites
lola: closed formula file ReachabilityCardinality.xml
lola: processed formula with 0 atomic propositions
lola: RUNNING
lola: SUBRESULT
lola: result: no
lola: produced by: preprocessing
lola: The net violates the given property already in its initial state.
lola: 0 markings, 0 edges
lola: ========================================
lola: subprocess 1 will run for 237 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: TRUE
lola: ========================================
lola: SUBTASK
lola: checking initial satisfaction
lola: processed formula: TRUE
lola: processed formula length: 4
lola: 9 rewrites
lola: closed formula file ReachabilityCardinality.xml
lola: processed formula with 0 atomic propositions
lola: RUNNING
lola: SUBRESULT
lola: result: yes
lola: produced by: preprocessing
lola: The net satisfies the property already in its initial state.
lola: 0 markings, 0 edges
lola: subprocess 2 will run for 254 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: FALSE
lola: ========================================
lola: SUBTASK
lola: checking initial satisfaction
lola: processed formula: FALSE
lola: processed formula length: 5
lola: 9 rewrites
lola: closed formula file ReachabilityCardinality.xml
lola: processed formula with 0 atomic propositions
lola: ========================================
lola: RUNNING
lola: SUBRESULT
lola: result: no
lola: produced by: preprocessing
lola: The net violates the given property already in its initial state.
lola: 0 markings, 0 edges
lola: ========================================
lola: subprocess 3 will run for 273 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: E (F (((1 <= l5_4_1))))
lola: ========================================
lola: SUBTASK
lola: checking reachability
lola: Planning: workflow for reachability check: stateequation||search (--findpath=off)
lola: rewrite Frontend/Parser/formula_rewrite.k:711
lola: processed formula: E (F (((1 <= l5_4_1))))
lola: processed formula length: 23
lola: 10 rewrites
lola: closed formula file ReachabilityCardinality.xml
lola: STORE
lola: using a simple compression encoder (--encoder=simplecompressed)
lola: using a prefix tree store (--store=prefix)
lola: SEARCH (state space)
lola: state space: using reachability graph (--search=depth)
lola: state space: using reachability preserving stubborn set method with insertion algorithm (--stubborn=tarjan)
lola: built state equation task
lola: RUNNING
lola: SUBRESULT
lola: result: yes
lola: produced by: state space
lola: The predicate is reachable.
lola: 10 markings, 9 edges
lola: ========================================
lola: subprocess 4 will run for 296 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: A (G ((m5_10_1 <= m4_2_1)))
lola: ========================================
lola: SUBTASK
lola: checking invariance
lola: Planning: workflow for reachability check: stateequation||search (--findpath=off)
lola: rewrite Frontend/Parser/formula_rewrite.k:721
lola: rewrite Frontend/Parser/formula_rewrite.k:787
lola: processed formula: A (G ((m5_10_1 <= m4_2_1)))
lola: processed formula length: 27
lola: 11 rewrites
lola: closed formula file ReachabilityCardinality.xml
lola: STORE
lola: using a simple compression encoder (--encoder=simplecompressed)
lola: using a prefix tree store (--store=prefix)
lola: SEARCH (state space)
lola: state space: using reachability graph (--search=depth)
lola: state space: using reachability preserving stubborn set method with insertion algorithm (--stubborn=tarjan)
lola: built state equation task
lola: RUNNING
lola: state equation task get result started, id 0
lola: rewrite Frontend/Parser/formula_rewrite.k:721
lola: rewrite Frontend/Parser/formula_rewrite.k:787
lola: state equation task get result rewrite finished id 0
lola: state equation task get result unparse finished++ id 0
lola: formula 0: (m4_2_1 + 1 <= m5_10_1)
lola: state equation task get result unparse finished id 0
lola: state equation: Generated DNF with 1 literals and 1 conjunctive subformulas
lola: SUBRESULT
lola: result: no
lola: produced by: state space
lola: The predicate is not invariant.
lola: 21 markings, 20 edges
lola: subprocess 5 will run for 323 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: E (F ((l5_3_0 + 1 <= pl1_7_1)))
lola: ========================================
lola: SUBTASK
lola: checking reachability
lola: Planning: workflow for reachability check: stateequation||search (--findpath=off)
lola: rewrite Frontend/Parser/formula_rewrite.k:711
lola: processed formula: E (F ((l5_3_0 + 1 <= pl1_7_1)))
lola: processed formula length: 31
lola: 10 rewrites
lola: closed formula file ReachabilityCardinality.xml
lola: STORE
lola: using a simple compression encoder (--encoder=simplecompressed)
lola: using a prefix tree store (--store=prefix)
lola: SEARCH (state space)
lola: state space: using reachability graph (--search=depth)
lola: state space: using reachability preserving stubborn set method with insertion algorithm (--stubborn=tarjan)
lola: built state equation task
lola: RUNNING
lola: state equation task get result started, id 0
lola: rewrite Frontend/Parser/formula_rewrite.k:711
lola: state equation task get result rewrite finished id 0
lola: state equation task get result unparse finished++ id 0
lola: formula 0: (l5_3_0 + 1 <= pl1_7_1)
lola: state equation task get result unparse finished id 0
lola: state equation: Generated DNF with 1 literals and 1 conjunctive subformulas
lola: SUBRESULT
lola: result: yes
lola: produced by: state space
lola: The predicate is reachable.
lola: 78 markings, 77 edges
lola: ========================================
lola: subprocess 6 will run for 355 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: A (G ((l35_8 <= l39_3_Y)))
lola: ========================================
lola: SUBTASK
lola: checking invariance
lola: Planning: workflow for reachability check: stateequation||search (--findpath=off)
lola: rewrite Frontend/Parser/formula_rewrite.k:721
lola: rewrite Frontend/Parser/formula_rewrite.k:787
lola: processed formula: A (G ((l35_8 <= l39_3_Y)))
lola: processed formula length: 26
lola: 11 rewrites
lola: closed formula file ReachabilityCardinality.xml
lola: STORE
lola: using a simple compression encoder (--encoder=simplecompressed)
lola: using a prefix tree store (--store=prefix)
lola: SEARCH (state space)
lola: state space: using reachability graph (--search=depth)
lola: state space: using reachability preserving stubborn set method with insertion algorithm (--stubborn=tarjan)
lola: built state equation task
lola: RUNNING
lola: state equation task get result started, id 0
lola: rewrite Frontend/Parser/formula_rewrite.k:721
lola: rewrite Frontend/Parser/formula_rewrite.k:787
lola: state equation task get result rewrite finished id 0
lola: state equation task get result unparse finished++ id 0
lola: formula 0: (l39_3_Y + 1 <= l35_8)
lola: state equation task get result unparse finished id 0
lola: state equation: Generated DNF with 1 literals and 1 conjunctive subformulas
lola: SUBRESULT
lola: result: no
lola: produced by: state space
lola: The predicate is not invariant.
lola: 60 markings, 59 edges
lola: ========================================
lola: ========================================
lola: subprocess 7 will run for 395 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: A (G ((gl1_5_N <= ml3_1_0)))
lola: ========================================
lola: SUBTASK
lola: checking invariance
lola: Planning: workflow for reachability check: stateequation||search (--findpath=off)
lola: rewrite Frontend/Parser/formula_rewrite.k:721
lola: rewrite Frontend/Parser/formula_rewrite.k:787
lola: processed formula: A (G ((gl1_5_N <= ml3_1_0)))
lola: processed formula length: 28
lola: 11 rewrites
lola: closed formula file ReachabilityCardinality.xml
lola: STORE
lola: using a simple compression encoder (--encoder=simplecompressed)
lola: using a prefix tree store (--store=prefix)
lola: SEARCH (state space)
lola: state space: using reachability graph (--search=depth)
lola: state space: using reachability preserving stubborn set method with insertion algorithm (--stubborn=tarjan)
lola: built state equation task
lola: RUNNING
lola: state equation task get result started, id 0
lola: rewrite Frontend/Parser/formula_rewrite.k:721
lola: rewrite Frontend/Parser/formula_rewrite.k:787
lola: state equation task get result rewrite finished id 0
lola: state equation task get result unparse finished++ id 0
lola: formula 0: (ml3_1_0 + 1 <= gl1_5_N)
lola: state equation task get result unparse finished id 0
lola: state equation: Generated DNF with 1 literals and 1 conjunctive subformulas
lola: SUBRESULT
lola: result: no
lola: produced by: state space
lola: The predicate is not invariant.
lola: 79 markings, 78 edges
lola: subprocess 8 will run for 444 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: A (G ((l5_2_0 <= ml3_9_1)))
lola: ========================================
lola: SUBTASK
lola: checking invariance
lola: Planning: workflow for reachability check: stateequation||search (--findpath=off)
lola: rewrite Frontend/Parser/formula_rewrite.k:721
lola: rewrite Frontend/Parser/formula_rewrite.k:787
lola: processed formula: A (G ((l5_2_0 <= ml3_9_1)))
lola: processed formula length: 27
lola: 11 rewrites
lola: closed formula file ReachabilityCardinality.xml
lola: STORE
lola: using a simple compression encoder (--encoder=simplecompressed)
lola: using a prefix tree store (--store=prefix)
lola: SEARCH (state space)
lola: state space: using reachability graph (--search=depth)
lola: state space: using reachability preserving stubborn set method with insertion algorithm (--stubborn=tarjan)
lola: built state equation task
lola: RUNNING
lola: state equation task get result started, id 0
lola: rewrite Frontend/Parser/formula_rewrite.k:721
lola: rewrite Frontend/Parser/formula_rewrite.k:787
lola: state equation task get result rewrite finished id 0
lola: state equation task get result unparse finished++ id 0
lola: formula 0: (ml3_9_1 + 1 <= l5_2_0)
lola: state equation task get result unparse finished id 0
lola: state equation: Generated DNF with 1 literals and 1 conjunctive subformulas
lola: ========================================
lola: SUBRESULT
lola: result: no
lola: produced by: state space
lola: The predicate is not invariant.
lola: 10 markings, 9 edges
lola: ========================================
lola: subprocess 9 will run for 508 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: E (F ((((1 <= l30_0)) AND (l19_7 <= l4_1_1))))
lola: ========================================
lola: SUBTASK
lola: checking reachability
lola: Planning: workflow for reachability check: stateequation||search (--findpath=off)
lola: rewrite Frontend/Parser/formula_rewrite.k:711
lola: processed formula: E (F ((((1 <= l30_0)) AND (l19_7 <= l4_1_1))))
lola: processed formula length: 46
lola: 10 rewrites
lola: closed formula file ReachabilityCardinality.xml
lola: STORE
lola: using a simple compression encoder (--encoder=simplecompressed)
lola: using a prefix tree store (--store=prefix)
lola: SEARCH (state space)
lola: state space: using reachability graph (--search=depth)
lola: state space: using reachability preserving stubborn set method with insertion algorithm (--stubborn=tarjan)
lola: built state equation task
lola: RUNNING
lola: state equation task get result started, id 0
lola: rewrite Frontend/Parser/formula_rewrite.k:711
lola: state equation task get result rewrite finished id 0
lola: state equation task get result unparse finished++ id 0
lola: formula 0: (((1 <= l30_0)) AND (l19_7 <= l4_1_1))
lola: state equation task get result unparse finished id 0
lola: state equation: Generated DNF with 2 literals and 1 conjunctive subformulas
lola: SUBRESULT
lola: result: yes
lola: produced by: state space
lola: The predicate is reachable.
lola: 48 markings, 47 edges
lola: ========================================
lola: subprocess 10 will run for 593 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: A (G ((((c3_6_1 <= gl1_8_N) AND (g1_4_1 <= ml4_10_1)))))
lola: ========================================
lola: SUBTASK
lola: checking invariance
lola: Planning: workflow for reachability check: stateequation||search (--findpath=off)
lola: rewrite Frontend/Parser/formula_rewrite.k:721
lola: rewrite Frontend/Parser/formula_rewrite.k:787
lola: processed formula: A (G ((((c3_6_1 <= gl1_8_N) AND (g1_4_1 <= ml4_10_1)))))
lola: processed formula length: 56
lola: 11 rewrites
lola: closed formula file ReachabilityCardinality.xml
lola: STORE
lola: using a simple compression encoder (--encoder=simplecompressed)
lola: using a prefix tree store (--store=prefix)
lola: SEARCH (state space)
lola: state space: using reachability graph (--search=depth)
lola: state space: using reachability preserving stubborn set method with insertion algorithm (--stubborn=tarjan)
lola: built state equation task
lola: RUNNING
lola: state equation task get result started, id 0
lola: rewrite Frontend/Parser/formula_rewrite.k:721
lola: rewrite Frontend/Parser/formula_rewrite.k:787
lola: state equation task get result rewrite finished id 0
lola: state equation task get result unparse finished++ id 0
lola: formula 0: (((gl1_8_N + 1 <= c3_6_1) OR (ml4_10_1 + 1 <= g1_4_1)))
lola: state equation task get result unparse finished id 0
lola: state equation: Generated DNF with 2 literals and 2 conjunctive subformulas
lola: SUBRESULT
lola: result: no
lola: produced by: state space
lola: The predicate is not invariant.
lola: 87 markings, 86 edges
lola: ========================================
lola: subprocess 11 will run for 711 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: E (F (((l5_10_1 + 1 <= l22_7) AND (ml0_7_1 <= gl1_4_N))))
lola: ========================================
lola: SUBTASK
lola: checking reachability
lola: Planning: workflow for reachability check: stateequation||search (--findpath=off)
lola: rewrite Frontend/Parser/formula_rewrite.k:711
lola: processed formula: E (F (((l5_10_1 + 1 <= l22_7) AND (ml0_7_1 <= gl1_4_N))))
lola: processed formula length: 57
lola: 10 rewrites
lola: closed formula file ReachabilityCardinality.xml
lola: STORE
lola: using a simple compression encoder (--encoder=simplecompressed)
lola: using a prefix tree store (--store=prefix)
lola: SEARCH (state space)
lola: state space: using reachability graph (--search=depth)
lola: state space: using reachability preserving stubborn set method with insertion algorithm (--stubborn=tarjan)
lola: built state equation task
lola: RUNNING
lola: state equation task get result started, id 0
lola: rewrite Frontend/Parser/formula_rewrite.k:711
lola: state equation task get result rewrite finished id 0
lola: state equation task get result unparse finished++ id 0
lola: formula 0: ((l5_10_1 + 1 <= l22_7) AND (ml0_7_1 <= gl1_4_N))
lola: state equation task get result unparse finished id 0
lola: state equation: Generated DNF with 2 literals and 1 conjunctive subformulas
lola: SUBRESULT
lola: result: yes
lola: produced by: state space
lola: The predicate is reachable.
lola: 55 markings, 54 edges
lola: ========================================
lola: subprocess 12 will run for 889 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: E (F ((((gl0_7_0 + 1 <= l28_0) OR (p4_8_1 + 1 <= l20_10)))))
lola: ========================================
lola: SUBTASK
lola: checking reachability
lola: Planning: workflow for reachability check: stateequation||search (--findpath=off)
lola: rewrite Frontend/Parser/formula_rewrite.k:711
lola: processed formula: E (F ((((gl0_7_0 + 1 <= l28_0) OR (p4_8_1 + 1 <= l20_10)))))
lola: processed formula length: 61
lola: 10 rewrites
lola: closed formula file ReachabilityCardinality.xml
lola: STORE
lola: using a simple compression encoder (--encoder=simplecompressed)
lola: using a prefix tree store (--store=prefix)
lola: SEARCH (state space)
lola: state space: using reachability graph (--search=depth)
lola: state space: using reachability preserving stubborn set method with insertion algorithm (--stubborn=tarjan)
lola: built state equation task
lola: RUNNING
lola: state equation task get result started, id 0
lola: rewrite Frontend/Parser/formula_rewrite.k:711
lola: state equation task get result rewrite finished id 0
lola: state equation task get result unparse finished++ id 0
lola: formula 0: (((gl0_7_0 + 1 <= l28_0) OR (p4_8_1 + 1 <= l20_10)))
lola: state equation task get result unparse finished id 0
lola: state equation: Generated DNF with 2 literals and 2 conjunctive subformulas
lola: SUBRESULT
lola: result: yes
lola: produced by: state space
lola: The predicate is reachable.
lola: 79 markings, 78 edges
lola: state equation: write sara problem file to ReachabilityCardinality-12-0.sara
lola: state equation: calling and running sara
lola: ========================================
lola: subprocess 13 will run for 1186 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: A (G (((l14_9 <= m6_7_0) AND ((l4_1_1 <= 0) OR (m3_10_1 + 1 <= m1_7_0)))))
lola: ========================================
lola: SUBTASK
lola: checking invariance
lola: Planning: workflow for reachability check: stateequation||search (--findpath=off)
lola: rewrite Frontend/Parser/formula_rewrite.k:721
lola: rewrite Frontend/Parser/formula_rewrite.k:787
lola: processed formula: A (G (((l14_9 <= m6_7_0) AND ((l4_1_1 <= 0) OR (m3_10_1 + 1 <= m1_7_0)))))
lola: processed formula length: 75
lola: 11 rewrites
lola: closed formula file ReachabilityCardinality.xml
lola: STORE
lola: using a simple compression encoder (--encoder=simplecompressed)
lola: using a prefix tree store (--store=prefix)
lola: SEARCH (state space)
lola: state space: using reachability graph (--search=depth)
sara: try reading problem file ReachabilityCardinality-12-0.sara.
lola: state space: using reachability preserving stubborn set method with insertion algorithm (--stubborn=tarjan)
lola: built state equation task
lola: RUNNING
lola: state equation task get result started, id 0
lola: rewrite Frontend/Parser/formula_rewrite.k:721
lola: rewrite Frontend/Parser/formula_rewrite.k:787
lola: state equation task get result rewrite finished id 0
lola: state equation task get result unparse finished++ id 0
lola: formula 0: ((m6_7_0 + 1 <= l14_9) OR ((1 <= l4_1_1) AND (m1_7_0 <= m3_10_1)))
lola: state equation task get result unparse finished id 0
lola: state equation: Generated DNF with 3 literals and 2 conjunctive subformulas
lola: SUBRESULT
lola: result: no
lola: produced by: state space
lola: The predicate is not invariant.
lola: 9 markings, 8 edges
lola: ========================================
lola: subprocess 14 will run for 1779 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: E (F ((((lc1_2 + 1 <= ml2_6_1) OR (m2_8_1 + 1 <= ml1_3_1)) AND (l20_4 <= l33_9))))
lola: ========================================
lola: SUBTASK
lola: checking reachability
lola: Planning: workflow for reachability check: stateequation||search (--findpath=off)
lola: rewrite Frontend/Parser/formula_rewrite.k:711
lola: processed formula: E (F ((((lc1_2 + 1 <= ml2_6_1) OR (m2_8_1 + 1 <= ml1_3_1)) AND (l20_4 <= l33_9))))
lola: processed formula length: 83
lola: 10 rewrites
lola: closed formula file ReachabilityCardinality.xml
lola: STORE
lola: using a simple compression encoder (--encoder=simplecompressed)
lola: using a prefix tree store (--store=prefix)
lola: SEARCH (state space)
lola: state space: using reachability graph (--search=depth)
lola: state space: using reachability preserving stubborn set method with insertion algorithm (--stubborn=tarjan)
lola: built state equation task
lola: RUNNING
lola: state equation task get result started, id 0
lola: rewrite Frontend/Parser/formula_rewrite.k:711
lola: state equation task get result rewrite finished id 0
lola: state equation task get result unparse finished++ id 0
lola: formula 0: (((lc1_2 + 1 <= ml2_6_1) OR (m2_8_1 + 1 <= ml1_3_1)) AND (l20_4 <= l33_9))
lola: state equation task get result unparse finished id 0
lola: state equation: Generated DNF with 4 literals and 2 conjunctive subformulas
lola: SUBRESULT
lola: result: yes
lola: produced by: state space
lola: The predicate is reachable.
lola: 14 markings, 13 edges
lola: ========================================
lola: subprocess 15 will run for 3559 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: E (F ((((ml4_5_1 + 1 <= lp0_1) OR (lm2_6_0 + 1 <= l33_10)) AND ((lg0_6 <= l1_6) OR (l32_8 <= m2_8_1) OR (1 <= g3_9_1)))))
lola: ========================================
lola: SUBTASK
lola: checking reachability
lola: Planning: workflow for reachability check: stateequation||search (--findpath=off)
lola: rewrite Frontend/Parser/formula_rewrite.k:711
lola: processed formula: E (F ((((ml4_5_1 + 1 <= lp0_1) OR (lm2_6_0 + 1 <= l33_10)) AND ((lg0_6 <= l1_6) OR (l32_8 <= m2_8_1) OR (1 <= g3_9_1)))))
lola: processed formula length: 124
lola: 10 rewrites
lola: closed formula file ReachabilityCardinality.xml
lola: STORE
lola: using a simple compression encoder (--encoder=simplecompressed)
lola: using a prefix tree store (--store=prefix)
lola: SEARCH (state space)
lola: state space: using reachability graph (--search=depth)
lola: state space: using reachability preserving stubborn set method with insertion algorithm (--stubborn=tarjan)
lola: built state equation task
lola: RUNNING
lola: state equation task get result started, id 0
lola: rewrite Frontend/Parser/formula_rewrite.k:711
lola: state equation task get result rewrite finished id 0
lola: state equation task get result unparse finished++ id 0
lola: formula 0: (((ml4_5_1 + 1 <= lp0_1) OR (lm2_6_0 + 1 <= l33_10)) AND ((lg0_6 <= l1_6) OR (l32_8 <= m2_8_1) OR (1 <= g3_9_1)))
lola: state equation task get result unparse finished id 0
lola: state equation: Generated DNF with 12 literals and 6 conjunctive subformulas
lola: SUBRESULT
lola: result: yes
lola: produced by: state space
lola: The predicate is reachable.
lola: 78 markings, 77 edges
lola: state equation: write sara problem file to ReachabilityCardinality-15-0.sara
lola: state equation: calling and running sara
lola: ========================================
lola: RESULT
lola:
SUMMARY: no yes yes no no yes yes no yes yes no no no no yes yes
lola:
preliminary result: no yes yes no no yes yes no yes yes no no no no yes yes
sara: try reading problem file ReachabilityCardinality-15-0.sara.
lola: memory consumption: 37052 KB
lola: time consumption: 11 seconds
lola: print data as JSON (--json)
lola: writing JSON to ReachabilityCardinality.json
lola: closed JSON file ReachabilityCardinality.json
sara: place or transition ordering is non-deterministic

sara: place or transition ordering is non-deterministic
rslt: finished

BK_STOP 1553472277081

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

grep: GenericPropertiesVerdict.xml: No such file or directory
grep: GenericPropertiesVerdict.xml: No such file or directory

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="FamilyReunion-PT-L00010M0001C001P001G001"
export BK_EXAMINATION="ReachabilityCardinality"
export BK_TOOL="lola"
export BK_RESULT_DIR="/tmp/BK_RESULTS/OUTPUTS"
export BK_TIME_CONFINEMENT="3600"
export BK_MEMORY_CONFINEMENT="16384"

# 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 2-3954"
echo " Executing tool lola"
echo " Input is FamilyReunion-PT-L00010M0001C001P001G001, examination is ReachabilityCardinality"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r181-csrt-155344534900188"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/FamilyReunion-PT-L00010M0001C001P001G001.tgz
mv FamilyReunion-PT-L00010M0001C001P001G001 execution
cd execution
if [ "ReachabilityCardinality" = "GlobalProperties" ] ; then
rm -f GenericPropertiesVerdict.xml
fi
if [ "ReachabilityCardinality" = "UpperBounds" ] ; 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 [ "ReachabilityCardinality" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "ReachabilityCardinality" != "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 "ReachabilityCardinality.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property ReachabilityCardinality.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "ReachabilityCardinality.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 '' ReachabilityCardinality.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
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 ;