Execution Chart

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

Trace from the execution

Formatting '/data/fko/mcc2020-input.r182-oct2-158987913500179.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fko/mcc2020-input.qcow2 cluster_size=65536 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
.......................................................................................................................................................................................................................................................................................................
=====================================================================
Generated by BenchKit 2-4028
Executing tool itslola
Input is BridgeAndVehicles-COL-V20P20N20, examination is CTLCardinality
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r182-oct2-158987913500179
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 232K
-rw-r--r-- 1 mcc users 4.3K Mar 26 02:25 CTLCardinality.txt
-rw-r--r-- 1 mcc users 22K Mar 26 02:25 CTLCardinality.xml
-rw-r--r-- 1 mcc users 3.0K Mar 25 20:59 CTLFireability.txt
-rw-r--r-- 1 mcc users 16K Mar 25 20:58 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.0K Mar 24 05:37 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.1K Mar 24 05:37 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 4.2K Apr 8 14:43 LTLCardinality.txt
-rw-r--r-- 1 mcc users 26K Apr 28 14:00 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.5K Apr 8 14:43 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K Apr 28 14:00 LTLFireability.xml
-rw-r--r-- 1 mcc users 3.9K Mar 25 17:24 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 18K Mar 25 17:23 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 3.8K Mar 25 12:26 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 19K Mar 25 12:26 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.9K Mar 25 17:54 UpperBounds.txt
-rw-r--r-- 1 mcc users 4.0K Mar 25 17:54 UpperBounds.xml
-rw-r--r-- 1 mcc users 5 Mar 24 05:37 equiv_pt
-rw-r--r-- 1 mcc users 10 Mar 24 05:37 instance
-rw-r--r-- 1 mcc users 5 Mar 24 05:37 iscolored
-rw-r--r-- 1 mcc users 40K Mar 24 05:37 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 BridgeAndVehicles-COL-V20P20N20-CTLCardinality-00
FORMULA_NAME BridgeAndVehicles-COL-V20P20N20-CTLCardinality-01
FORMULA_NAME BridgeAndVehicles-COL-V20P20N20-CTLCardinality-02
FORMULA_NAME BridgeAndVehicles-COL-V20P20N20-CTLCardinality-03
FORMULA_NAME BridgeAndVehicles-COL-V20P20N20-CTLCardinality-04
FORMULA_NAME BridgeAndVehicles-COL-V20P20N20-CTLCardinality-05
FORMULA_NAME BridgeAndVehicles-COL-V20P20N20-CTLCardinality-06
FORMULA_NAME BridgeAndVehicles-COL-V20P20N20-CTLCardinality-07
FORMULA_NAME BridgeAndVehicles-COL-V20P20N20-CTLCardinality-08
FORMULA_NAME BridgeAndVehicles-COL-V20P20N20-CTLCardinality-09
FORMULA_NAME BridgeAndVehicles-COL-V20P20N20-CTLCardinality-10
FORMULA_NAME BridgeAndVehicles-COL-V20P20N20-CTLCardinality-11
FORMULA_NAME BridgeAndVehicles-COL-V20P20N20-CTLCardinality-12
FORMULA_NAME BridgeAndVehicles-COL-V20P20N20-CTLCardinality-13
FORMULA_NAME BridgeAndVehicles-COL-V20P20N20-CTLCardinality-14
FORMULA_NAME BridgeAndVehicles-COL-V20P20N20-CTLCardinality-15

=== Now, execution of the tool begins

BK_START 1591131735454

bash -c /home/mcc/BenchKit/BenchKit_head.sh 2> STDERR ; echo ; echo -n "BK_STOP " ; date -u +%s%3N
[2020-06-02 21:02:17] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, CTLCardinality, -z3path, /home/mcc/BenchKit//z3/bin/z3, -yices2path, /home/mcc/BenchKit//yices/bin/yices, -timeout, 3600, -rebuildPNML]
[2020-06-02 21:02:17] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2020-06-02 21:02:17] [INFO ] Detected file is not PT type :http://www.pnml.org/version-2009/grammar/symmetricnet
SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".
SLF4J: Defaulting to no-operation (NOP) logger implementation
SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further details.
[2020-06-02 21:02:18] [INFO ] Load time of PNML (colored model parsed with PNMLFW) : 570 ms
[2020-06-02 21:02:18] [INFO ] sort/places :
sens->CONTROLEUR,CHOIX,VIDANGE,
compteur->COMPTEUR,
Dot->CAPACITE,SORTI_A,ROUTE_A,ATTENTE_A,SUR_PONT_A,SUR_PONT_B,ATTENTE_B,ROUTE_B,SORTI_B,
voitureA->NB_ATTENTE_A,
voitureB->NB_ATTENTE_B,

[2020-06-02 21:02:18] [INFO ] Imported 15 HL places and 11 HL transitions for a total of 78 PT places and 37258.0 transition bindings in 33 ms.
[2020-06-02 21:02:18] [INFO ] Computed order based on color domains.
[2020-06-02 21:02:18] [INFO ] Unfolded HLPN to a Petri net with 78 places and 968 transitions in 16 ms.
[2020-06-02 21:02:18] [INFO ] Unfolded HLPN properties in 1 ms.
Parsed 16 properties from file /home/mcc/execution/CTLCardinality.xml in 67 ms.
Incomplete random walk after 100000 steps, including 575 resets, run finished after 429 ms. (steps per millisecond=233 ) properties seen :[0, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, 1]
[2020-06-02 21:02:18] [INFO ] Flow matrix only has 170 transitions (discarded 798 similar events)
// Phase 1: matrix 170 rows 78 cols
[2020-06-02 21:02:18] [INFO ] Computed 7 place invariants in 7 ms
[2020-06-02 21:02:18] [INFO ] [Real]Absence check using 7 positive place invariants in 13 ms returned sat
[2020-06-02 21:02:18] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2020-06-02 21:02:18] [INFO ] [Real]Absence check using state equation in 58 ms returned sat
[2020-06-02 21:02:18] [INFO ] Solution in real domain found non-integer solution.
[2020-06-02 21:02:18] [INFO ] [Nat]Absence check using 7 positive place invariants in 7 ms returned sat
[2020-06-02 21:02:18] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2020-06-02 21:02:18] [INFO ] [Nat]Absence check using state equation in 72 ms returned sat
[2020-06-02 21:02:18] [INFO ] State equation strengthened by 42 read => feed constraints.
[2020-06-02 21:02:19] [INFO ] [Nat]Added 42 Read/Feed constraints in 17 ms returned sat
[2020-06-02 21:02:19] [INFO ] Deduced a trap composed of 25 places in 311 ms
[2020-06-02 21:02:19] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 342 ms
[2020-06-02 21:02:19] [INFO ] Computed and/alt/rep : 965/22439/167 causal constraints in 74 ms.
[2020-06-02 21:02:21] [INFO ] Added : 145 causal constraints over 40 iterations in 2242 ms. Result :sat
[2020-06-02 21:02:21] [INFO ] [Real]Absence check using 7 positive place invariants in 4 ms returned sat
[2020-06-02 21:02:21] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2020-06-02 21:02:21] [INFO ] [Real]Absence check using state equation in 35 ms returned sat
[2020-06-02 21:02:21] [INFO ] Solution in real domain found non-integer solution.
[2020-06-02 21:02:21] [INFO ] [Nat]Absence check using 7 positive place invariants in 4 ms returned sat
[2020-06-02 21:02:21] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2020-06-02 21:02:21] [INFO ] [Nat]Absence check using state equation in 66 ms returned sat
[2020-06-02 21:02:21] [INFO ] [Nat]Added 42 Read/Feed constraints in 14 ms returned sat
[2020-06-02 21:02:22] [INFO ] Deduced a trap composed of 24 places in 261 ms
[2020-06-02 21:02:22] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 287 ms
[2020-06-02 21:02:22] [INFO ] Computed and/alt/rep : 965/22439/167 causal constraints in 65 ms.
[2020-06-02 21:02:25] [INFO ] Added : 162 causal constraints over 33 iterations in 3156 ms. Result :sat
[2020-06-02 21:02:25] [INFO ] [Real]Absence check using 7 positive place invariants in 16 ms returned unsat
[2020-06-02 21:02:25] [INFO ] [Real]Absence check using 7 positive place invariants in 2 ms returned unsat
Successfully simplified 2 atomic propositions for a total of 2 simplifications.
[2020-06-02 21:02:25] [INFO ] Initial state reduction rules for CTL removed 2 formulas.
[2020-06-02 21:02:25] [INFO ] Flatten gal took : 93 ms
[2020-06-02 21:02:25] [INFO ] Initial state reduction rules for CTL removed 3 formulas.
[2020-06-02 21:02:25] [INFO ] Flatten gal took : 61 ms
FORMULA BridgeAndVehicles-COL-V20P20N20-CTLCardinality-10 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA BridgeAndVehicles-COL-V20P20N20-CTLCardinality-09 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA BridgeAndVehicles-COL-V20P20N20-CTLCardinality-08 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
[2020-06-02 21:02:25] [INFO ] Export to MCC properties in file /home/mcc/execution/CTLCardinality.sr.xml took 1 ms.
[2020-06-02 21:02:25] [INFO ] Export to PNML in file /home/mcc/execution/model.sr.pnml took 7 ms.
info: Time: 3600 - MCC
vrfy: Checking CTLCardinality @ BridgeAndVehicles-COL-V20P20N20 @ 3570 seconds

FORMULA BridgeAndVehicles-COL-V20P20N20-CTLCardinality-00 TRUE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA BridgeAndVehicles-COL-V20P20N20-CTLCardinality-15 TRUE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA BridgeAndVehicles-COL-V20P20N20-CTLCardinality-11 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA BridgeAndVehicles-COL-V20P20N20-CTLCardinality-14 TRUE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA BridgeAndVehicles-COL-V20P20N20-CTLCardinality-07 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA BridgeAndVehicles-COL-V20P20N20-CTLCardinality-03 TRUE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA BridgeAndVehicles-COL-V20P20N20-CTLCardinality-06 TRUE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA BridgeAndVehicles-COL-V20P20N20-CTLCardinality-12 TRUE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA BridgeAndVehicles-COL-V20P20N20-CTLCardinality-13 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA BridgeAndVehicles-COL-V20P20N20-CTLCardinality-02 TRUE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA BridgeAndVehicles-COL-V20P20N20-CTLCardinality-05 TRUE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA BridgeAndVehicles-COL-V20P20N20-CTLCardinality-01 TRUE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA BridgeAndVehicles-COL-V20P20N20-CTLCardinality-04 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT
vrfy: finished
info: timeLeft: 3459
rslt: Output for CTLCardinality @ BridgeAndVehicles-COL-V20P20N20

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"files":
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"net": "model.pnml"
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"formula":
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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: 1046/268435456 symbol table entries, 0 collisions
lola: preprocessing...
lola: Size of bit vector: 2496
lola: finding significant places
lola: 78 places, 968 transitions, 71 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 CTLCardinality.xml
lola: E (G ((0 <= 0))) : (A ((((1 <= p50) OR (3 <= p0)) U ((p24 <= p53 + p54) OR (p23 <= 1)))) AND NOT(A (F ((2 <= p24))))) : E (((p24 <= p76 + p77) U ((2 <= p24) AND (1 <= p50) AND ((p49 <= p76 + p77) OR (3 <= p25))))) : E (G ((2 <= p0))) : (A (G (((p0 <= p53 + p54) OR (p22 <= p0) OR (3 <= p24)))) OR (E (G ((p76 + p77 <= p50))) AND (p49 <= p25))) : ((2 <= p24) OR A (F (E (G ((p49 <= p51 + p52)))))) : A (F (((1 <= p51 + p52) AND (1 <= p22) AND ((1 <= p25) OR (p53 + p54 <= p51 + p52) OR (3 <= p47) OR (1 <= p47))))) : NOT(E (F ((p0 + 1 <= p48)))) : A (G (A (X ((1 <= p23))))) : E (G (A (((p47 <= p23) U (p47 <= p22))))) : ((1 <= p50) OR A (G ((p47 <= p23)))) : (E (F ((p0 <= p24))) AND NOT(E (X ((1 <= 0))))) : A (((1 <= 0) U E (G ((0 <= 0)))))
lola: rewrite Frontend/Parser/formula_rewrite.k:100
lola: rewrite Frontend/Parser/formula_rewrite.k:160
lola: rewrite Frontend/Parser/formula_rewrite.k:148
lola: rewrite Frontend/Parser/formula_rewrite.k:323
lola: rewrite Frontend/Parser/formula_rewrite.k:332
lola: rewrite Frontend/Parser/formula_rewrite.k:297
lola: rewrite Frontend/Parser/formula_rewrite.k:326
lola: rewrite Frontend/Parser/formula_rewrite.k:332
lola: rewrite Frontend/Parser/formula_rewrite.k:297
lola: rewrite Frontend/Parser/formula_rewrite.k:398
lola: rewrite Frontend/Parser/formula_rewrite.k:98
lola: rewrite Frontend/Parser/formula_rewrite.k:133
lola: rewrite Frontend/Parser/formula_rewrite.k:282
lola: rewrite Frontend/Parser/formula_rewrite.k:115
lola: rewrite Frontend/Parser/formula_rewrite.k:98
lola: rewrite Frontend/Parser/formula_rewrite.k:100
lola: rewrite Frontend/Parser/formula_rewrite.k:160
lola: rewrite Frontend/Parser/formula_rewrite.k:148
lola: rewrite Frontend/Parser/formula_rewrite.k:166
lola: rewrite Frontend/Parser/formula_rewrite.k:151
lola: computing a collection of formulas
lola: RUNNING
lola: subprocess 0 will run for 271 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: 20 rewrites
lola: closed formula file CTLCardinality.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: ========================================
lola: subprocess 1 will run for 293 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: 20 rewrites
lola: closed formula file CTLCardinality.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: ========================================
lola: subprocess 2 will run for 320 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: A (X (A (G ((1 <= p23)))))
lola: ========================================
lola: SUBTASK
lola: checking invariance from all successors
lola: rewrite Frontend/Parser/formula_rewrite.k:624
lola: rewrite Frontend/Parser/formula_rewrite.k:753
lola: rewrite Frontend/Parser/formula_rewrite.k:787
lola: processed formula: (p23 <= 0)
lola: processed formula length: 10
lola: 23 rewrites
lola: closed formula file CTLCardinality.xml
lola: STORE
lola: using a simple compression encoder (--encoder=simplecompressed)
lola: using a prefix tree store (--store=prefix)
lola: SEARCH (state space /EXEF)
lola: state space: using reachability graph (EXef version) (--search=depth)
lola: state space: using reachability preserving stubborn set method with insertion algorithm (--stubborn=tarjan)
lola: Planning: workflow for reachability check: stateequation (--findpath=off)
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: 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: (p23 <= 0)
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 /EXEF
lola: The predicate is not invariant from successors.
lola: 21 markings, 20 edges
lola: ========================================
lola: subprocess 3 will run for 352 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: E (F ((p0 <= p24)))
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 ((p0 <= p24)))
lola: processed formula length: 19
lola: 21 rewrites
lola: closed formula file CTLCardinality.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: (p0 <= p24)
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: 21 markings, 20 edges
lola: state equation: write sara problem file to CTLCardinality-3-0.sara
lola: state equation: calling and running sara
lola: ========================================
lola: subprocess 4 will run for 391 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: A (G ((p48 <= p0)))
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:788
lola: processed formula: A (G ((p48 <= p0)))
lola: processed formula length: 19
lola: 22 rewrites
lola: closed formula file CTLCardinality.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:788
lola: state equation task get result rewrite finished id 0
lola: state equation task get result unparse finished++ id 0
lola: formula 0: (p0 + 1 <= p48)
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: 24 markings, 23 edges
lola: ========================================
lola: subprocess 5 will run for 440 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: E (G ((2 <= p0)))
lola: ========================================
lola: SUBTASK
lola: checking possible preservation
lola: rewrite Frontend/Parser/formula_rewrite.k:583
lola: processed formula: E (G ((2 <= p0)))
lola: processed formula length: 17
lola: 21 rewrites
lola: sara: try reading problem file CTLCardinality-3-0.sara.
closed formula file CTLCardinality.xml
lola: STORE
lola: using a simple compression encoder (--encoder=simplecompressed)
lola: using a prefix tree store (--store=prefix)
lola: SEARCH (state space / EG)
lola: state space: using search routine for EG formula (--search=depth)
lola: state space: using EG preserving stubborn set method (--stubborn=tarjan)
lola: Planning: workflow for reachability check: stateequation (--findpath=off)
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: (p0 <= 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 / EG
lola: The predicate is possibly preserved.
lola: 169 markings, 168 edges
lola: state equation: write sara problem file to CTLCardinality-5-0.sara
lola: state equation: calling and running sara
lola: ========================================
sara: try reading problem file CTLCardinality-5-0.sara.
lola: subprocess 6 will run for 503 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: A (F (((1 <= p51 + p52) AND (1 <= p22) AND ((1 <= p25) OR (p53 + p54 <= p51 + p52) OR (3 <= p47) OR (1 <= p47)))))
lola: ========================================
lola: SUBTASK
lola: checking eventual occurrence
lola: rewrite Frontend/Parser/formula_rewrite.k:584
lola: rewrite Frontend/Parser/formula_rewrite.k:749
lola: rewrite Frontend/Parser/formula_rewrite.k:787
lola: processed formula: ((p51 + p52 <= 0) OR (p22 <= 0) OR ((p25 <= 0) AND (p51 + p52 + 1 <= p53 + p54) AND (p47 <= 2) AND (p47 <= 0)))
lola: processed formula length: 113
lola: 23 rewrites
lola: closed formula file CTLCardinality.xml
lola: STORE
lola: using a simple compression encoder (--encoder=simplecompressed)
lola: using a prefix tree store (--store=prefix)
lola: SEARCH (state space / EG)
lola: state space: using search routine for EG formula (--search=depth)
lola: state space: using EG preserving stubborn set method (--stubborn=tarjan)
lola: Planning: workflow for reachability check: stateequation (--findpath=off)
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:700
lola: state equation task get result rewrite finished id 0
lola: state equation task get result unparse finished++ id 0
lola: formula 0: ((1 <= p51 + p52) AND (1 <= p22) AND ((1 <= p25) OR (p53 + p54 <= p51 + p52) OR (3 <= p47) OR (1 <= p47)))
lola: state equation task get result unparse finished id 0
lola: state equation: Generated DNF with 12 literals and 4 conjunctive subformulas
lola: state equation: write sara problem file to CTLCardinality-6-0.sara
lola: state equation: calling and running sara
sara: try reading problem file CTLCardinality-6-0.sara.
sara: place or transition ordering is non-deterministic
sara: place or transition ordering is non-deterministic
sara: place or transition ordering is non-deterministic

lola: 312450 markings, 893590 edges, 62490 markings/sec, 0 secs || sara is running 0 secs
sara: warning, failure of lp_solve (at job 205)
lola: 838292 markings, 2355517 edges, 105168 markings/sec, 5 secs || sara is running 5 secs
lola: SUBRESULT
lola: result: yes
lola: produced by: state space / EG
lola: The predicate eventually occurs.
lola: 978573 markings, 2748361 edges
lola: ========================================
lola: subprocess 7 will run for 585 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: E (G (A (((p47 <= p23) U (p47 <= p22)))))
lola: ========================================
lola: SUBTASK
lola: checking CTL
lola: rewrite Frontend/Parser/formula_rewrite.k:814
lola: rewrite Frontend/Parser/formula_rewrite.k:808
lola: processed formula: EG(A((p47 <= p23) U (p47 <= p22)))
lola: processed formula length: 34
lola: 22 rewrites
lola: closed formula file CTLCardinality.xml
lola: STORE
lola: using a simple compression encoder (--encoder=simplecompressed)
lola: using a prefix tree store (--store=prefix)
lola: Using CTL preserving stubborn sets
lola: RUNNING
lola: CTL formula contains 2 significant temporal operators and needs 9 bytes of payload
lola: Ignoring fairness constraints (--fair).
lola: SUBRESULT
lola: result: yes
lola: produced by: CTL model checker
lola: The net satisfies the given formula.
lola: 3925 markings, 8165 edges
lola: subprocess 8 will run for 703 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: ((1 <= p50) OR A (G ((p47 <= p23))))
lola: ========================================
lola: SUBTASK
lola: checking a Boolean combination of formulas
lola: RUNNING
lola: ========================================
lola: subprocess 8 will run for 703 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: (1 <= p50)
lola: ========================================
lola: SUBTASK
lola: checking initial satisfaction
lola: processed formula: (1 <= p50)
lola: processed formula length: 10
lola: 20 rewrites
lola: closed formula file CTLCardinality.xml
lola: processed formula with 1 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 9 will run for 878 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: A (G ((p47 <= p23)))
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 ((p47 <= p23)))
lola: processed formula length: 20
lola: 22 rewrites
lola: closed formula file CTLCardinality.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: (p23 + 1 <= p47)
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: 86 markings, 85 edges
lola: ========================================
lola: SUBRESULT
lola: result: no
lola: The Boolean predicate is false.
lola: ========================================
lola: subprocess 9 will run for 878 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: E (((p24 <= p76 + p77) U ((2 <= p24) AND (1 <= p50) AND ((p49 <= p76 + p77) OR (3 <= p25)))))
lola: ========================================
lola: SUBTASK
lola: checking existential until
lola: rewrite Frontend/Parser/formula_rewrite.k:618
lola: Planning: workflow for reachability check: stateequation (--findpath=off)
lola: built state equation task
lola: rewrite Frontend/Parser/formula_rewrite.k:738
lola: rewrite Frontend/Parser/formula_rewrite.k:694
lola: processed formula: E (((p24 <= p76 + p77) U ((2 <= p24) AND (1 <= p50) AND ((p49 <= p76 + p77) OR (3 <= p25)))))
lola: processed formula length: 94
lola: 23 rewrites
lola: closed formula file CTLCardinality.xml
lola: STORE
lola: using a simple compression encoder (--encoder=simplecompressed)
lola: using a prefix tree store (--store=prefix)
lola: SEARCH (state space /EU)
lola: state space: using reachability graph (EU version) (--search=depth)
lola: state space: using eu preserving stubborn set method (--stubborn=tarjan)
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: ((2 <= p24) AND (1 <= p50) AND ((p49 <= p76 + p77) OR (3 <= p25)))
lola: state equation task get result unparse finished id 0
lola: state equation: Generated DNF with 6 literals and 2 conjunctive subformulas
lola: SUBRESULT
lola: result: yes
lola: produced by: state space /EU
lola: There is a path where Predicate Phi holds until Predicate Psi.
lola: 88 markings, 87 edges
lola: ========================================
lola: subprocess 10 will run for 1171 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: ((2 <= p24) OR A (F (E (G ((p49 <= p51 + p52))))))
lola: ========================================
lola: SUBTASK
lola: checking a Boolean combination of formulas
lola: RUNNING
lola: subprocess 10 will run for 1171 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: (2 <= p24)
lola: ========================================
lola: SUBTASK
lola: checking initial satisfaction
lola: processed formula: (2 <= p24)
lola: processed formula length: 10
lola: 20 rewrites
lola: closed formula file CTLCardinality.xml
lola: processed formula with 1 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 11 will run for 1757 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: A (F (E (G ((p49 <= p51 + p52)))))
lola: ========================================
lola: SUBTASK
lola: checking CTL
lola: rewrite Frontend/Parser/formula_rewrite.k:808
lola: rewrite Frontend/Parser/formula_rewrite.k:811
lola: processed formula: AF(EG((p49 <= p51 + p52)))
lola: processed formula length: 26
lola: 22 rewrites
lola: closed formula file CTLCardinality.xml
lola: STORE
lola: using a simple compression encoder (--encoder=simplecompressed)
lola: using a prefix tree store (--store=prefix)
lola: Using CTL preserving stubborn sets
lola: RUNNING
lola: CTL formula contains 2 significant temporal operators and needs 9 bytes of payload
lola: Ignoring fairness constraints (--fair).
lola: 1101907 markings, 4127330 edges, 220381 markings/sec, 0 secs
lola: 2143189 markings, 8388569 edges, 208256 markings/sec, 5 secs
lola: 3150592 markings, 12560537 edges, 201481 markings/sec, 10 secs
lola: 4152782 markings, 16701819 edges, 200438 markings/sec, 15 secs
lola: 5113417 markings, 20773305 edges, 192127 markings/sec, 20 secs
lola: 6070424 markings, 24825745 edges, 191401 markings/sec, 25 secs
lola: 6995072 markings, 28743076 edges, 184930 markings/sec, 30 secs
lola: 7923493 markings, 32667061 edges, 185684 markings/sec, 35 secs
lola: 8528392 markings, 35044178 edges, 120980 markings/sec, 40 secs
lola: 8967045 markings, 37103031 edges, 87731 markings/sec, 45 secs
lola: 9419601 markings, 39108244 edges, 90511 markings/sec, 50 secs
lola: SUBRESULT
lola: result: yes
lola: produced by: CTL model checker
lola: The net satisfies the given formula.
lola: 9455140 markings, 39260092 edges
lola: ========================================
lola: SUBRESULT
lola: result: yes
lola: The Boolean predicate is true.
lola: ========================================
lola: subprocess 11 will run for 1729 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: (A ((((1 <= p50) OR (3 <= p0)) U ((p24 <= p53 + p54) OR (p23 <= 1)))) AND E (G ((p24 <= 1))))
lola: ========================================
lola: SUBTASK
lola: checking a Boolean combination of formulas
lola: RUNNING
lola: subprocess 11 will run for 1729 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: E (G ((p24 <= 1)))
lola: ========================================
lola: SUBTASK
lola: checking possible preservation
lola: rewrite Frontend/Parser/formula_rewrite.k:583
lola: processed formula: E (G ((p24 <= 1)))
lola: processed formula length: 18
lola: 21 rewrites
lola: closed formula file CTLCardinality.xml
lola: STORE
lola: using a simple compression encoder (--encoder=simplecompressed)
lola: using a prefix tree store (--store=prefix)
lola: SEARCH (state space / EG)
lola: state space: using search routine for EG formula (--search=depth)
lola: state space: using EG preserving stubborn set method (--stubborn=tarjan)
lola: Planning: workflow for reachability check: stateequation (--findpath=off)
lola: built state equation task
lola: RUNNING
lola: SUBRESULT
lola: result: yes
lola: produced by: state space / EG
lola: The predicate is possibly preserved.
lola: 169 markings, 168 edges
lola: ========================================
lola: subprocess 12 will run for 3459 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: A ((((1 <= p50) OR (3 <= p0)) U ((p24 <= p53 + p54) OR (p23 <= 1))))
lola: ========================================
lola: SUBTASK
lola: checking universal until
lola: rewrite Frontend/Parser/formula_rewrite.k:577
lola: rewrite Frontend/Parser/formula_rewrite.k:735
lola: rewrite Frontend/Parser/formula_rewrite.k:695
lola: rewrite Frontend/Parser/formula_rewrite.k:787
lola: rewrite Frontend/Parser/formula_rewrite.k:787
lola: processed formula: A ((((1 <= p50) OR (3 <= p0)) U ((p24 <= p53 + p54) OR (p23 <= 1))))
lola: processed formula length: 70
lola: 25 rewrites
lola: closed formula file CTLCardinality.xml
lola: STORE
lola: using a simple compression encoder (--encoder=simplecompressed)
lola: using a prefix tree store (--store=prefix)
lola: SEARCH (state space /ER)
lola: state space: using reachability graph (ER version) (--search=depth)
lola: state space: using ltl preserving stubborn set method (--stubborn=tarjan)
lola: Planning: workflow for reachability check: stateequation (--findpath=off)
lola: built state equation task
lola: RUNNING
lola: 0
lola: SUBRESULT
lola: result: yes
lola: produced by: state space /ER
lola: Predicate Phi holds until Predicate Psi on all paths.
lola: 0 markings, 0 edges
lola: SUBRESULT
lola: result: yes
lola: The Boolean predicate is true.
lola: ========================================
lola: subprocess 12 will run for 3459 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: (A (G (((p0 <= p53 + p54) OR (p22 <= p0) OR (3 <= p24)))) OR (E (G ((p76 + p77 <= p50))) AND (p49 <= p25)))
lola: ========================================
lola: SUBTASK
lola: checking a Boolean combination of formulas
lola: RUNNING
lola: subprocess 12 will run for 3459 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: (p49 <= p25)
lola: ========================================
lola: SUBTASK
lola: checking initial satisfaction
lola: processed formula: (p49 <= p25)
lola: processed formula length: 12
lola: 20 rewrites
lola: closed formula file CTLCardinality.xml
lola: processed formula with 1 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: Child process aborted or communication problem between parent and child process
lola: SUBRESULT
lola: result: unknown
lola: The Boolean predicate may be true or false.
lola: ========================================
lola: ========================================
lola: ...considering subproblem: (A (G (((p0 <= p53 + p54) OR (p22 <= p0) OR (3 <= p24)))) OR (E (G ((p76 + p77 <= p50))) AND (p49 <= p25)))
lola: ========================================
lola: SUBTASK
lola: checking a Boolean combination of formulas
lola: RUNNING
lola: ========================================
lola: ...considering subproblem: (p49 <= p25)
lola: ========================================
lola: SUBTASK
lola: checking initial satisfaction
lola: processed formula: (p49 <= p25)
lola: processed formula length: 12
lola: 20 rewrites
lola: closed formula file CTLCardinality.xml
lola: state equation task get result started, id 0
lola: rewrite Frontend/Parser/formula_rewrite.k:721
lola: rewrite Frontend/Parser/formula_rewrite.k:700
lola: state equation task get result rewrite finished id 0
lola: state equation task get result unparse finished++ id 0
lola: formula 0: ((1 <= p50) OR (3 <= p0))
lola: state equation task get result unparse finished id 0
lola: state equation: Generated DNF with 2 literals and 2 conjunctive subformulas
lola: ========================================
lola: processed formula with 1 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: ========================================
lola: ...considering subproblem: A (G (((p0 <= p53 + p54) OR (p22 <= p0) OR (3 <= p24))))
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 (((p0 <= p53 + p54) OR (p22 <= p0) OR (3 <= p24))))
lola: processed formula length: 58
lola: 22 rewrites
lola: closed formula file CTLCardinality.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: ((p53 + p54 + 1 <= p0) AND (p0 + 1 <= p22) AND (p24 <= 2))
lola: state equation task get result unparse finished id 0
lola: state equation: Generated DNF with 3 literals and 1 conjunctive subformulas
lola: SUBRESULT
lola: result: no
lola: produced by: state space
lola: The predicate is not invariant.
lola: 86 markings, 85 edges
lola: state equation: write sara problem file to CTLCardinality-14-0.sara
lola: state equation: calling and running sara
sara: try reading problem file CTLCardinality-14-0.sara.
lola: SUBRESULT
lola: result: no
lola: The Boolean predicate is false.
lola: ========================================
lola: ========================================
lola: RESULT
lola:
SUMMARY: yes yes yes yes no yes yes no no yes no yes yes
lola:
preliminary result: yes yes yes yes no yes yes no no yes no yes yes
lola: memory consumption: 40296 KB
lola: time consumption: 111 seconds
lola: print data as JSON (--json)
lola: writing JSON to CTLCardinality.json
lola: closed JSON file CTLCardinality.json
rslt: finished
TIME LIMIT: Killed by timeout after 3600 seconds
MemTotal: 16427364 kB
MemFree: 15912860 kB
After kill :
MemTotal: 16427364 kB
MemFree: 15912356 kB

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

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="BridgeAndVehicles-COL-V20P20N20"
export BK_EXAMINATION="CTLCardinality"
export BK_TOOL="itslola"
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 2-4028"
echo " Executing tool itslola"
echo " Input is BridgeAndVehicles-COL-V20P20N20, 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 r182-oct2-158987913500179"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/BridgeAndVehicles-COL-V20P20N20.tgz
mv BridgeAndVehicles-COL-V20P20N20 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 '' CTLCardinality.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
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 ;