Execution Chart

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

Trace from the execution

Formatting '/data/fko/mcc2019-input.r126-oct2-155274853400286.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fko/mcc2019-input.qcow2 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 QuasiCertifProtocol-PT-18, examination is LTLFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r126-oct2-155274853400286
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 1.2M
-rw-r--r-- 1 mcc users 27K Feb 12 10:33 CTLCardinality.txt
-rw-r--r-- 1 mcc users 109K Feb 12 10:33 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.2K Feb 8 12:40 CTLFireability.txt
-rw-r--r-- 1 mcc users 26K Feb 8 12:40 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.0K Mar 10 17:31 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.4K Mar 10 17:31 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 112 Feb 24 15:05 GlobalProperties.txt
-rw-r--r-- 1 mcc users 350 Feb 24 15:05 GlobalProperties.xml
-rw-r--r-- 1 mcc users 15K Feb 5 00:44 LTLCardinality.txt
-rw-r--r-- 1 mcc users 58K Feb 5 00:44 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.9K Feb 4 22:41 LTLFireability.txt
-rw-r--r-- 1 mcc users 13K Feb 4 22:41 LTLFireability.xml
-rw-r--r-- 1 mcc users 22K Feb 4 13:56 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 86K Feb 4 13:56 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 6.5K Feb 1 10:19 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 30K Feb 1 10:19 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 2.2K Feb 4 22:26 UpperBounds.txt
-rw-r--r-- 1 mcc users 5.3K Feb 4 22:26 UpperBounds.xml
-rw-r--r-- 1 mcc users 5 Jan 29 09:34 equiv_col
-rw-r--r-- 1 mcc users 3 Jan 29 09:34 instance
-rw-r--r-- 1 mcc users 6 Jan 29 09:34 iscolored
-rw-r--r-- 1 mcc users 686K Mar 10 17:31 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 QuasiCertifProtocol-PT-18-LTLFireability-00
FORMULA_NAME QuasiCertifProtocol-PT-18-LTLFireability-01
FORMULA_NAME QuasiCertifProtocol-PT-18-LTLFireability-02
FORMULA_NAME QuasiCertifProtocol-PT-18-LTLFireability-03
FORMULA_NAME QuasiCertifProtocol-PT-18-LTLFireability-04
FORMULA_NAME QuasiCertifProtocol-PT-18-LTLFireability-05
FORMULA_NAME QuasiCertifProtocol-PT-18-LTLFireability-06
FORMULA_NAME QuasiCertifProtocol-PT-18-LTLFireability-07
FORMULA_NAME QuasiCertifProtocol-PT-18-LTLFireability-08
FORMULA_NAME QuasiCertifProtocol-PT-18-LTLFireability-09
FORMULA_NAME QuasiCertifProtocol-PT-18-LTLFireability-10
FORMULA_NAME QuasiCertifProtocol-PT-18-LTLFireability-11
FORMULA_NAME QuasiCertifProtocol-PT-18-LTLFireability-12
FORMULA_NAME QuasiCertifProtocol-PT-18-LTLFireability-13
FORMULA_NAME QuasiCertifProtocol-PT-18-LTLFireability-14
FORMULA_NAME QuasiCertifProtocol-PT-18-LTLFireability-15

=== Now, execution of the tool begins

BK_START 1553899170126

info: Time: 3600 - MCC
vrfy: Checking LTLFireability @ QuasiCertifProtocol-PT-18 @ 3570 seconds

FORMULA QuasiCertifProtocol-PT-18-LTLFireability-07 TRUE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA QuasiCertifProtocol-PT-18-LTLFireability-08 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA QuasiCertifProtocol-PT-18-LTLFireability-05 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA QuasiCertifProtocol-PT-18-LTLFireability-12 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA QuasiCertifProtocol-PT-18-LTLFireability-15 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA QuasiCertifProtocol-PT-18-LTLFireability-13 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA QuasiCertifProtocol-PT-18-LTLFireability-02 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA QuasiCertifProtocol-PT-18-LTLFireability-00 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA QuasiCertifProtocol-PT-18-LTLFireability-09 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA QuasiCertifProtocol-PT-18-LTLFireability-11 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA QuasiCertifProtocol-PT-18-LTLFireability-06 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA QuasiCertifProtocol-PT-18-LTLFireability-14 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA QuasiCertifProtocol-PT-18-LTLFireability-04 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA QuasiCertifProtocol-PT-18-LTLFireability-10 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA QuasiCertifProtocol-PT-18-LTLFireability-01 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA QuasiCertifProtocol-PT-18-LTLFireability-03 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT
vrfy: finished
info: timeLeft: 3542
rslt: Output for LTLFireability @ QuasiCertifProtocol-PT-18

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},
"processed": "A (G (F (FIREABLE(malS6_8))))",
"processed_size": 29,
"rewrites": 33
},
"result":
{
"edges": 32,
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"produced_by": "LTL model checker",
"value": false
},
"task":
{
"buchi":
{
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"compoundnumber": 11,
"search":
{
"store":
{
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"stubborn":
{
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"type": "LTL",
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},

{
"call":
{
"dynamic_timelimit": true,
"localtimelimit": 891
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"exit":
{
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"formula":
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"processed": "A (G (F (FIREABLE(AgetTS))))",
"processed_size": 28,
"rewrites": 33
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"result":
{
"edges": 22,
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"task":
{
"buchi":
{
"states": 2
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"compoundnumber": 12,
"search":
{
"store":
{
"encoder": "simple compression",
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"stubborn":
{
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"type": "product automaton/dfs"
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"type": "LTL",
"workflow": "product automaton"
}
},

{
"call":
{
"dynamic_timelimit": true,
"localtimelimit": 1188
},
"exit":
{
"localtimelimitreached": false
},
"formula":
{
"count":
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"A": 1,
"E": 0,
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"G": 1,
"U": 0,
"X": 0,
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},
"processed": "A ((F (FIREABLE(malC1_14)) OR (G ((F (FIREABLE(SsendTS_5)) AND (FIREABLE(malS1_11) OR FIREABLE(SsendTS_5)))) AND F (FIREABLE(malC1_14)))))",
"processed_size": 138,
"rewrites": 33
},
"result":
{
"edges": 31,
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"task":
{
"buchi":
{
"states": 5
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"compoundnumber": 13,
"search":
{
"store":
{
"encoder": "simple compression",
"type": "prefix"
},
"stubborn":
{
"type": "ltl preserving/insertion"
},
"type": "product automaton/dfs"
},
"type": "LTL",
"workflow": "product automaton"
}
},

{
"call":
{
"dynamic_timelimit": true,
"localtimelimit": 1783
},
"exit":
{
"localtimelimitreached": false
},
"formula":
{
"count":
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"A": 1,
"E": 0,
"F": 2,
"G": 1,
"U": 0,
"X": 0,
"aconj": 0,
"adisj": 3,
"aneg": 0,
"comp": 0,
"cont": 0,
"dl": 0,
"fir": 57,
"nodl": 0,
"place_references": 0,
"taut": 0,
"tconj": 1,
"tdisj": 1,
"tneg": 0,
"transition_references": 57,
"unfir": 0,
"visible_places": 0,
"visible_transitions": 19
},
"processed": "A (F (G ((F ((FIREABLE(malS6_6) OR FIREABLE(malS6_7) OR FIREABLE(malS6_4) OR FIREABLE(malS6_5) OR FIREABLE(malS6_10) OR FIREABLE(malS6_11) OR FIREABLE(malS6_8) OR FIREABLE(malS6_9) OR FIREABLE(malS6_14) OR FIREABLE(malS6_15) OR FIREABLE(malS6_12) OR FIREABLE(malS6_13) OR FIREABLE(malS6_18) OR FIREABLE(malS6_16) OR FIREABLE(malS6_17) OR FIREABLE(malS6_3) OR FIREABLE(malS6_2) OR FIREABLE(malS6_1) OR FIREABLE(malS6_0))) AND ((FIREABLE(malS6_6) OR FIREABLE(malS6_7) OR FIREABLE(malS6_4) OR FIREABLE(malS6_5) OR FIREABLE(malS6_10) OR FIREABLE(malS6_11) OR FIREABLE(malS6_8) OR FIREABLE(malS6_9) OR FIREABLE(malS6_14) OR FIREABLE(malS6_15) OR FIREABLE(malS6_12) OR FIREABLE(malS6_13) OR FIREABLE(malS6_18) OR FIREABLE(malS6_16) OR FIREABLE(malS6_17) OR FIREABLE(malS6_3) OR FIREABLE(malS6_2) OR FIREABLE(malS6_1) OR FIREABLE(malS6_0)) OR (FIREABLE(malS6_6) OR FIREABLE(malS6_7) OR FIREABLE(malS6_4) OR FIREABLE(malS6_5) OR FIREABLE(malS6_10) OR FIREABLE(malS6_11) OR FIREABLE(malS6_8) OR FIREABLE(malS6_9) OR FIREABLE(malS6_14) OR FIREABLE(malS6_15) OR FIREABLE(malS6_12) OR FIREABLE(malS6_13) OR FIREABLE(malS6_18) OR FIREABLE(malS6_16) OR FIREABLE(malS6_17) OR FIREABLE(malS6_3) OR FIREABLE(malS6_2) OR FIREABLE(malS6_1) OR FIREABLE(malS6_0)))))))",
"processed_size": 1301,
"rewrites": 33
},
"result":
{
"edges": 34,
"markings": 33,
"produced_by": "LTL model checker",
"value": false
},
"task":
{
"buchi":
{
"states": 3
},
"compoundnumber": 14,
"search":
{
"store":
{
"encoder": "simple compression",
"type": "prefix"
},
"stubborn":
{
"type": "ltl preserving/insertion"
},
"type": "product automaton/dfs"
},
"type": "LTL",
"workflow": "product automaton"
}
},

{
"call":
{
"dynamic_timelimit": true,
"localtimelimit": 3566
},
"exit":
{
"localtimelimitreached": false
},
"formula":
{
"count":
{
"A": 1,
"E": 0,
"F": 1,
"G": 1,
"U": 0,
"X": 0,
"aconj": 0,
"adisj": 1,
"aneg": 0,
"comp": 0,
"cont": 0,
"dl": 0,
"fir": 19,
"nodl": 0,
"place_references": 0,
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"tdisj": 0,
"tneg": 0,
"transition_references": 19,
"unfir": 0,
"visible_places": 0,
"visible_transitions": 19
},
"processed": "A (G (F ((FIREABLE(SackCS_12) OR FIREABLE(SackCS_13) OR FIREABLE(SackCS_14) OR FIREABLE(SackCS_15) OR FIREABLE(SackCS_16) OR FIREABLE(SackCS_17) OR FIREABLE(SackCS_18) OR FIREABLE(SackCS_4) OR FIREABLE(SackCS_5) OR FIREABLE(SackCS_6) OR FIREABLE(SackCS_7) OR FIREABLE(SackCS_8) OR FIREABLE(SackCS_9) OR FIREABLE(SackCS_10) OR FIREABLE(SackCS_11) OR FIREABLE(SackCS_3) OR FIREABLE(SackCS_2) OR FIREABLE(SackCS_1) OR FIREABLE(SackCS_0)))))",
"processed_size": 455,
"rewrites": 33
},
"result":
{
"edges": 32,
"markings": 32,
"produced_by": "LTL model checker",
"value": false
},
"task":
{
"buchi":
{
"states": 2
},
"compoundnumber": 15,
"search":
{
"store":
{
"encoder": "simple compression",
"type": "prefix"
},
"stubborn":
{
"type": "ltl preserving/insertion"
},
"type": "product automaton/dfs"
},
"type": "LTL",
"workflow": "product automaton"
}
}
],
"exit":
{
"error": null,
"memory": 24228,
"runtime": 4.000000,
"signal": null,
"timelimitreached": false
},
"files":
{
"formula": "LTLFireability.xml",
"net": "model.pnml"
},
"formula":
{
"skeleton": "A(F(**)) : A(F(G((F(**) AND (** OR **))))) : A(G(**)) : A(G(F(**))) : A(G(F(**))) : A((X(F(**)) OR (X(F(**)) AND F(G(**))))) : A(G(F(**))) : ** : ** : A(F(**)) : A((F(**) OR (G((F(**) AND (** OR **))) AND F(**)))) : A(F(**)) : A((X(G(**)) U (G(**) OR (G(**) AND F(G(**)))))) : A(G(**)) : A(G(F(**))) : A(X(**))"
},
"net":
{
"arcs": 3119,
"conflict_clusters": 68,
"places": 1398,
"places_significant": 295,
"singleton_clusters": 0,
"transitions": 296
},
"result":
{
"preliminary_value": "no no no no no no no yes no no no no no no no no ",
"value": "no no no no no no no yes no no no no no no no no "
},
"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: 1694/268435456 symbol table entries, 0 collisions
lola: preprocessing...
lola: Size of bit vector: 44736
lola: finding significant places
lola: 1398 places, 296 transitions, 295 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 LTLFireability.xml
lola: A (F ((F (FIREABLE(AreqTS)) U F (FIREABLE(AstartCS))))) : A (F (F (G (((FIREABLE(malS6_6) OR FIREABLE(malS6_7) OR FIREABLE(malS6_4) OR FIREABLE(malS6_5) OR FIREABLE(malS6_10) OR FIREABLE(malS6_11) OR FIREABLE(malS6_8) OR FIREABLE(malS6_9) OR FIREABLE(malS6_14) OR FIREABLE(malS6_15) OR FIREABLE(malS6_12) OR FIREABLE(malS6_13) OR FIREABLE(malS6_18) OR FIREABLE(malS6_16) OR FIREABLE(malS6_17) OR FIREABLE(malS6_3) OR FIREABLE(malS6_2) OR FIREABLE(malS6_1) OR FIREABLE(malS6_0)) U (FIREABLE(malS6_6) OR FIREABLE(malS6_7) OR FIREABLE(malS6_4) OR FIREABLE(malS6_5) OR FIREABLE(malS6_10) OR FIREABLE(malS6_11) OR FIREABLE(malS6_8) OR FIREABLE(malS6_9) OR FIREABLE(malS6_14) OR FIREABLE(malS6_15) OR FIREABLE(malS6_12) OR FIREABLE(malS6_13) OR FIREABLE(malS6_18) OR FIREABLE(malS6_16) OR FIREABLE(malS6_17) OR FIREABLE(malS6_3) OR FIREABLE(malS6_2) OR FIREABLE(malS6_1) OR FIREABLE(malS6_0))))))) : A (G (G (FIREABLE(AstartCS)))) : A (F (G (G (F ((FIREABLE(SackCS_12) OR FIREABLE(SackCS_13) OR FIREABLE(SackCS_14) OR FIREABLE(SackCS_15) OR FIREABLE(SackCS_16) OR FIREABLE(SackCS_17) OR FIREABLE(SackCS_18) OR FIREABLE(SackCS_4) OR FIREABLE(SackCS_5) OR FIREABLE(SackCS_6) OR FIREABLE(SackCS_7) OR FIREABLE(SackCS_8) OR FIREABLE(SackCS_9) OR FIREABLE(SackCS_10) OR FIREABLE(SackCS_11) OR FIREABLE(SackCS_3) OR FIREABLE(SackCS_2) OR FIREABLE(SackCS_1) OR FIREABLE(SackCS_0))))))) : A (G (F (G (G (F (FIREABLE(AgetTS))))))) : A ((F (F (G (FIREABLE(malA3)))) U X (F (F (FIREABLE(AgetTS)))))) : A (G (F (FIREABLE(malA2)))) : A ((FIREABLE(malS1_9) OR FIREABLE(malS1_10) OR FIREABLE(malS1_11) OR FIREABLE(malS1_12) OR FIREABLE(malS1_5) OR FIREABLE(malS1_6) OR FIREABLE(malS1_7) OR FIREABLE(malS1_8) OR FIREABLE(malS1_17) OR FIREABLE(malS1_18) OR FIREABLE(malS1_13) OR FIREABLE(malS1_14) OR FIREABLE(malS1_15) OR FIREABLE(malS1_16) OR FIREABLE(malS1_2) OR FIREABLE(malS1_1) OR FIREABLE(malS1_4) OR FIREABLE(malS1_3) OR FIREABLE(malS1_0))) : A (FIREABLE(malS3_4)) : A (F (FIREABLE(Sperform_8))) : A ((G ((FIREABLE(malS1_11) U FIREABLE(SsendTS_5))) U F ((FIREABLE(SreqTS_9) U FIREABLE(malC1_14))))) : A (F ((F (F (FIREABLE(SreqTS_11))) U FIREABLE(malC1_7)))) : A ((G (X (G (FIREABLE(malS4_15)))) U (G (FIREABLE(SsendTS_5)) U G (FIREABLE(Sperform_0))))) : A (G (FIREABLE(SsendTS_16))) : A (G (G (G (F (X (FIREABLE(malS6_8))))))) : A (X (FIREABLE(malS6_17)))
lola: rewrite Frontend/Parser/formula_rewrite.k:422
lola: rewrite Frontend/Parser/formula_rewrite.k:347
lola: rewrite Frontend/Parser/formula_rewrite.k:437
lola: rewrite Frontend/Parser/formula_rewrite.k:522
lola: rewrite Frontend/Parser/formula_rewrite.k:347
lola: rewrite Frontend/Parser/formula_rewrite.k:350
lola: rewrite Frontend/Parser/formula_rewrite.k:350
lola: rewrite Frontend/Parser/formula_rewrite.k:371
lola: rewrite Frontend/Parser/formula_rewrite.k:350
lola: rewrite Frontend/Parser/formula_rewrite.k:371
lola: rewrite Frontend/Parser/formula_rewrite.k:350
lola: rewrite Frontend/Parser/formula_rewrite.k:347
lola: rewrite Frontend/Parser/formula_rewrite.k:347
lola: rewrite Frontend/Parser/formula_rewrite.k:428
lola: rewrite Frontend/Parser/formula_rewrite.k:356
lola: rewrite Frontend/Parser/formula_rewrite.k:347
lola: rewrite Frontend/Parser/formula_rewrite.k:151
lola: rewrite Frontend/Parser/formula_rewrite.k:151
lola: rewrite Frontend/Parser/formula_rewrite.k:437
lola: rewrite Frontend/Parser/formula_rewrite.k:522
lola: rewrite Frontend/Parser/formula_rewrite.k:434
lola: rewrite Frontend/Parser/formula_rewrite.k:431
lola: rewrite Frontend/Parser/formula_rewrite.k:347
lola: rewrite Frontend/Parser/formula_rewrite.k:347
lola: rewrite Frontend/Parser/formula_rewrite.k:434
lola: rewrite Frontend/Parser/formula_rewrite.k:353
lola: rewrite Frontend/Parser/formula_rewrite.k:350
lola: rewrite Frontend/Parser/formula_rewrite.k:431
lola: rewrite Frontend/Parser/formula_rewrite.k:356
lola: rewrite Frontend/Parser/formula_rewrite.k:353
lola: rewrite Frontend/Parser/formula_rewrite.k:377
lola: rewrite Frontend/Parser/formula_rewrite.k:350
lola: rewrite Frontend/Parser/formula_rewrite.k:350
lola: computing a collection of formulas
lola: RUNNING
lola: subprocess 0 will run for 222 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: (FIREABLE(malS1_9) OR FIREABLE(malS1_10) OR FIREABLE(malS1_11) OR FIREABLE(malS1_12) OR FIREABLE(malS1_5) OR FIREABLE(malS1_6) OR FIREABLE(malS1_7) OR FIREABLE(malS1_8) OR FIREABLE(malS1_17) OR FIREABLE(malS1_18) OR FIREABLE(malS1_13) OR FIREABLE(malS1_14) OR FIREABLE(malS1_15) OR FIREABLE(malS1_16) OR FIREABLE(malS1_2) OR FIREABLE(malS1_1) OR FIREABLE(malS1_4) OR FIREABLE(malS1_3... (shortened)
lola: ========================================
lola: SUBTASK
lola: checking initial satisfaction
lola: processed formula: (FIREABLE(malS1_9) OR FIREABLE(malS1_10) OR FIREABLE(malS1_11) OR FIREABLE(malS1_12) OR FIREABLE(malS1_5) OR FIREABLE(malS1_6) OR FIREABLE(malS1_7) OR FIREABLE(malS1_8) OR FIREABLE(malS1_17) OR FIREABLE(malS1_18) OR FIREABLE(malS1_13) OR FIREABLE(malS1_14) OR FIREABLE(malS1_15) OR FIREABLE(malS1_16) OR FIREABLE(malS1_2) OR FIREABLE(malS1_1) OR FIREABLE(malS1_4) OR FIREABLE(malS1_3... (shortened)
lola: processed formula length: 424
lola: 33 rewrites
lola: closed formula file LTLFireability.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 237 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: FIREABLE(malS3_4)
lola: ========================================
lola: SUBTASK
lola: checking initial satisfaction
lola: processed formula: FIREABLE(malS3_4)
lola: processed formula length: 17
lola: 33 rewrites
lola: closed formula file LTLFireability.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 2 will run for 254 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: A ((X (F (FIREABLE(AgetTS))) OR (X (F (FIREABLE(AgetTS))) AND F (G (FIREABLE(malA3))))))
lola: ========================================
lola: SUBTASK
lola: checking LTL
lola: transforming LTL-Formula into a Büchi-Automaton
lola: processed formula: A ((X (F (FIREABLE(AgetTS))) OR (X (F (FIREABLE(AgetTS))) AND F (G (FIREABLE(malA3))))))
lola: processed formula length: 88
lola: 33 rewrites
lola: closed formula file LTLFireability.xml
lola: the resulting Büchi automaton has 4 states
lola: STORE
lola: using a simple compression encoder (--encoder=simplecompressed)
lola: using a prefix tree store (--store=prefix)
lola: Formula contains X operator; stubborn sets not applicable
lola: Formula contains X operator; stubborn sets not applicable
lola: SEARCH
lola: RUNNING
lola: SUBRESULT
lola: result: no
lola: produced by: LTL model checker
lola: The net does not satisfy the given formula (language of the product automaton is nonempty).
lola: 22 markings, 22 edges
lola: ========================================
lola: subprocess 3 will run for 274 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: A ((X (G (FIREABLE(malS4_15))) U (G (FIREABLE(Sperform_0)) OR (G (FIREABLE(SsendTS_5)) AND F (G (FIREABLE(Sperform_0)))))))
lola: ========================================
lola: SUBTASK
lola: checking LTL
lola: transforming LTL-Formula into a Büchi-Automaton
lola: processed formula: A ((X (G (FIREABLE(malS4_15))) U (G (FIREABLE(Sperform_0)) OR (G (FIREABLE(SsendTS_5)) AND F (G (FIREABLE(Sperform_0)))))))
lola: processed formula length: 123
lola: 33 rewrites
lola: closed formula file LTLFireability.xml
lola: the resulting Büchi automaton has 39 states
lola: STORE
lola: using a simple compression encoder (--encoder=simplecompressed)
lola: using a prefix tree store (--store=prefix)
lola: Formula contains X operator; stubborn sets not applicable
lola: Formula contains X operator; stubborn sets not applicable
lola: SEARCH
lola: RUNNING
lola: SUBRESULT
lola: result: no
lola: produced by: LTL model checker
lola: The net does not satisfy the given formula (language of the product automaton is nonempty).
lola: 22 markings, 22 edges
lola: ========================================
lola: subprocess 4 will run for 297 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: A (X (FIREABLE(malS6_17)))
lola: ========================================
lola: SUBTASK
lola: checking LTL
lola: transforming LTL-Formula into a Büchi-Automaton
lola: processed formula: A (X (FIREABLE(malS6_17)))
lola: processed formula length: 26
lola: 33 rewrites
lola: closed formula file LTLFireability.xml
lola: the resulting Büchi automaton has 3 states
lola: STORE
lola: using a simple compression encoder (--encoder=simplecompressed)
lola: using a prefix tree store (--store=prefix)
lola: Formula contains X operator; stubborn sets not applicable
lola: Formula contains X operator; stubborn sets not applicable
lola: SEARCH
lola: RUNNING
lola: SUBRESULT
lola: result: no
lola: produced by: LTL model checker
lola: The net does not satisfy the given formula (language of the product automaton is nonempty).
lola: 22 markings, 22 edges
lola: ========================================
lola: subprocess 5 will run for 324 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: A (G (FIREABLE(SsendTS_16)))
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 (FIREABLE(SsendTS_16)))
lola: processed formula length: 28
lola: 35 rewrites
lola: closed formula file LTLFireability.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: SUBRESULT
lola: formula 0: NOT FIREABLE(SsendTS_16)
lola: state equation task get result unparse finished id 0
lola: state equation: Generated DNF with 2 literals and 2 conjunctive subformulas
lola: result: no
lola: produced by: state space
lola: The predicate is not invariant.
lola: 0 markings, 0 edges
lola: ========================================
lola: subprocess 6 will run for 356 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: A (G (FIREABLE(AstartCS)))
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 (FIREABLE(AstartCS)))
lola: processed formula length: 26
lola: 35 rewrites
lola: closed formula file LTLFireability.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: SUBRESULT
lola: result: no
lola: produced by: state space
lola: The predicate is not invariant.
lola: 0 markings, 0 edges
lola: state equation task get result unparse finished++ id 0
lola: formula 0: NOT FIREABLE(AstartCS)
lola: state equation task get result unparse finished id 0
lola: state equation: Generated DNF with 1 literals and 1 conjunctive subformulas
lola: ========================================
lola: subprocess 7 will run for 396 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: A (F (FIREABLE(AstartCS)))
lola: ========================================
lola: SUBTASK
lola: checking eventual occurrence
lola: rewrite Frontend/Parser/formula_rewrite.k:749
lola: rewrite Frontend/Parser/formula_rewrite.k:787
lola: processed formula: NOT FIREABLE(AstartCS)
lola: processed formula length: 22
lola: 35 rewrites
lola: closed formula file LTLFireability.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: RUNNING
lola: SUBRESULT
lola: result: no
lola: produced by: state space / EG
lola: The predicate does not eventually occur.
lola: 30 markings, 29 edges
lola: ========================================
lola: subprocess 8 will run for 445 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: A (F (FIREABLE(Sperform_8)))
lola: ========================================
lola: SUBTASK
lola: checking eventual occurrence
lola: rewrite Frontend/Parser/formula_rewrite.k:749
lola: rewrite Frontend/Parser/formula_rewrite.k:787
lola: processed formula: NOT FIREABLE(Sperform_8)
lola: processed formula length: 24
lola: 35 rewrites
lola: closed formula file LTLFireability.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: RUNNING
lola: SUBRESULT
lola: result: no
lola: produced by: state space / EG
lola: The predicate does not eventually occur.
lola: 30 markings, 29 edges
lola: ========================================
lola: subprocess 9 will run for 509 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: A (F (FIREABLE(malC1_7)))
lola: ========================================
lola: SUBTASK
lola: checking eventual occurrence
lola: rewrite Frontend/Parser/formula_rewrite.k:749
lola: rewrite Frontend/Parser/formula_rewrite.k:787
lola: processed formula: NOT FIREABLE(malC1_7)
lola: processed formula length: 21
lola: 35 rewrites
lola: closed formula file LTLFireability.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: RUNNING
lola: SUBRESULT
lola: result: no
lola: produced by: state space / EG
lola: The predicate does not eventually occur.
lola: 32 markings, 31 edges
lola: ========================================
lola: subprocess 10 will run for 594 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: A (G (F (FIREABLE(malA2))))
lola: ========================================
lola: SUBTASK
lola: checking LTL
lola: transforming LTL-Formula into a Büchi-Automaton
lola: processed formula: A (G (F (FIREABLE(malA2))))
lola: processed formula length: 27
lola: 33 rewrites
lola: closed formula file LTLFireability.xml
lola: the resulting Büchi automaton has 2 states
lola: STORE
lola: using a simple compression encoder (--encoder=simplecompressed)
lola: using a prefix tree store (--store=prefix)
lola: using ltl preserving stubborn set method with deletion algorithm (--stubborn=deletion)
lola: using ltl preserving stubborn set method with insertion algorithm(--stubborn=tarjan)
lola: SEARCH
lola: RUNNING
lola: SUBRESULT
lola: result: no
lola: produced by: LTL model checker
lola: The net does not satisfy the given formula (language of the product automaton is nonempty).
lola: 30 markings, 30 edges
lola: ========================================
lola: subprocess 11 will run for 713 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: A (G (F (FIREABLE(malS6_8))))
lola: ========================================
lola: SUBTASK
lola: checking LTL
lola: transforming LTL-Formula into a Büchi-Automaton
lola: processed formula: A (G (F (FIREABLE(malS6_8))))
lola: processed formula length: 29
lola: 33 rewrites
lola: closed formula file LTLFireability.xml
lola: the resulting Büchi automaton has 2 states
lola: STORE
lola: using a simple compression encoder (--encoder=simplecompressed)
lola: using a prefix tree store (--store=prefix)
lola: using ltl preserving stubborn set method with deletion algorithm (--stubborn=deletion)
lola: using ltl preserving stubborn set method with insertion algorithm(--stubborn=tarjan)
lola: SEARCH
lola: RUNNING
lola: SUBRESULT
lola: result: no
lola: produced by: LTL model checker
lola: The net does not satisfy the given formula (language of the product automaton is nonempty).
lola: 32 markings, 32 edges
lola: ========================================
lola: subprocess 12 will run for 891 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: A (G (F (FIREABLE(AgetTS))))
lola: ========================================
lola: SUBTASK
lola: checking LTL
lola: transforming LTL-Formula into a Büchi-Automaton
lola: processed formula: A (G (F (FIREABLE(AgetTS))))
lola: processed formula length: 28
lola: 33 rewrites
lola: closed formula file LTLFireability.xml
lola: the resulting Büchi automaton has 2 states
lola: STORE
lola: using a simple compression encoder (--encoder=simplecompressed)
lola: using a prefix tree store (--store=prefix)
lola: using ltl preserving stubborn set method with deletion algorithm (--stubborn=deletion)
lola: using ltl preserving stubborn set method with insertion algorithm(--stubborn=tarjan)
lola: SEARCH
lola: RUNNING
lola: SUBRESULT
lola: result: no
lola: produced by: LTL model checker
lola: The net does not satisfy the given formula (language of the product automaton is nonempty).
lola: 22 markings, 22 edges
lola: ========================================
lola: subprocess 13 will run for 1188 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: A ((F (FIREABLE(malC1_14)) OR (G ((F (FIREABLE(SsendTS_5)) AND (FIREABLE(malS1_11) OR FIREABLE(SsendTS_5)))) AND F (FIREABLE(malC1_14)))))
lola: ========================================
lola: SUBTASK
lola: checking LTL
lola: transforming LTL-Formula into a Büchi-Automaton
lola: processed formula: A ((F (FIREABLE(malC1_14)) OR (G ((F (FIREABLE(SsendTS_5)) AND (FIREABLE(malS1_11) OR FIREABLE(SsendTS_5)))) AND F (FIREABLE(malC1_14)))))
lola: processed formula length: 138
lola: 33 rewrites
lola: closed formula file LTLFireability.xml
lola: the resulting Büchi automaton has 5 states
lola: STORE
lola: using a simple compression encoder (--encoder=simplecompressed)
lola: using a prefix tree store (--store=prefix)
lola: using ltl preserving stubborn set method with deletion algorithm (--stubborn=deletion)
lola: using ltl preserving stubborn set method with insertion algorithm(--stubborn=tarjan)
lola: SEARCH
lola: RUNNING
lola: SUBRESULT
lola: result: no
lola: produced by: LTL model checker
lola: The net does not satisfy the given formula (language of the product automaton is nonempty).
lola: 31 markings, 31 edges
lola: ========================================
lola: subprocess 14 will run for 1783 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: A (F (G ((F ((FIREABLE(malS6_6) OR FIREABLE(malS6_7) OR FIREABLE(malS6_4) OR FIREABLE(malS6_5) OR FIREABLE(malS6_10) OR FIREABLE(malS6_11) OR FIREABLE(malS6_8) OR FIREABLE(malS6_9) OR FIREABLE(malS6_14) OR FIREABLE(malS6_15) OR FIREABLE(malS6_12) OR FIREABLE(malS6_13) OR FIREABLE(malS6_18) OR FIREABLE(malS6_16) OR FIREABLE(malS6_17) OR FIREABLE(malS6_3) OR FIREABLE(malS6_2) OR FIR... (shortened)
lola: ========================================
lola: SUBTASK
lola: checking LTL
lola: transforming LTL-Formula into a Büchi-Automaton
lola: processed formula: A (F (G ((F ((FIREABLE(malS6_6) OR FIREABLE(malS6_7) OR FIREABLE(malS6_4) OR FIREABLE(malS6_5) OR FIREABLE(malS6_10) OR FIREABLE(malS6_11) OR FIREABLE(malS6_8) OR FIREABLE(malS6_9) OR FIREABLE(malS6_14) OR FIREABLE(malS6_15) OR FIREABLE(malS6_12) OR FIREABLE(malS6_13) OR FIREABLE(malS6_18) OR FIREABLE(malS6_16) OR FIREABLE(malS6_17) OR FIREABLE(malS6_3) OR FIREABLE(malS6_2) OR FIR... (shortened)
lola: processed formula length: 1301
lola: 33 rewrites
lola: closed formula file LTLFireability.xml
lola: the resulting Büchi automaton has 3 states
lola: STORE
lola: using a simple compression encoder (--encoder=simplecompressed)
lola: using a prefix tree store (--store=prefix)
lola: using ltl preserving stubborn set method with deletion algorithm (--stubborn=deletion)
lola: using ltl preserving stubborn set method with insertion algorithm(--stubborn=tarjan)
lola: SEARCH
lola: RUNNING
lola: SUBRESULT
lola: result: no
lola: produced by: LTL model checker
lola: The net does not satisfy the given formula (language of the product automaton is nonempty).
lola: 33 markings, 34 edges
lola: ========================================
lola: subprocess 15 will run for 3566 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: A (G (F ((FIREABLE(SackCS_12) OR FIREABLE(SackCS_13) OR FIREABLE(SackCS_14) OR FIREABLE(SackCS_15) OR FIREABLE(SackCS_16) OR FIREABLE(SackCS_17) OR FIREABLE(SackCS_18) OR FIREABLE(SackCS_4) OR FIREABLE(SackCS_5) OR FIREABLE(SackCS_6) OR FIREABLE(SackCS_7) OR FIREABLE(SackCS_8) OR FIREABLE(SackCS_9) OR FIREABLE(SackCS_10) OR FIREABLE(SackCS_11) OR FIREABLE(SackCS_3) OR FIREABLE(Sack... (shortened)
lola: ========================================
lola: SUBTASK
lola: checking LTL
lola: transforming LTL-Formula into a Büchi-Automaton
lola: processed formula: A (G (F ((FIREABLE(SackCS_12) OR FIREABLE(SackCS_13) OR FIREABLE(SackCS_14) OR FIREABLE(SackCS_15) OR FIREABLE(SackCS_16) OR FIREABLE(SackCS_17) OR FIREABLE(SackCS_18) OR FIREABLE(SackCS_4) OR FIREABLE(SackCS_5) OR FIREABLE(SackCS_6) OR FIREABLE(SackCS_7) OR FIREABLE(SackCS_8) OR FIREABLE(SackCS_9) OR FIREABLE(SackCS_10) OR FIREABLE(SackCS_11) OR FIREABLE(SackCS_3) OR FIREABLE(Sack... (shortened)
lola: processed formula length: 455
lola: 33 rewrites
lola: closed formula file LTLFireability.xml
lola: the resulting Büchi automaton has 2 states
lola: STORE
lola: using a simple compression encoder (--encoder=simplecompressed)
lola: using a prefix tree store (--store=prefix)
lola: using ltl preserving stubborn set method with deletion algorithm (--stubborn=deletion)
lola: using ltl preserving stubborn set method with insertion algorithm(--stubborn=tarjan)
lola: SEARCH
lola: RUNNING
lola: SUBRESULT
lola: result: no
lola: produced by: LTL model checker
lola: The net does not satisfy the given formula (language of the product automaton is nonempty).
lola: 32 markings, 32 edges
lola: ========================================
lola: RESULT
lola:
SUMMARY: no no no no no no no yes no no no no no no no no
lola:
preliminary result: no no no no no no no yes no no no no no no no no
lola: memory consumption: 24228 KB
lola: time consumption: 4 seconds
lola: print data as JSON (--json)
lola: writing JSON to LTLFireability.json
lola: closed JSON file LTLFireability.json
rslt: finished

BK_STOP 1553899198359

--------------------
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="QuasiCertifProtocol-PT-18"
export BK_EXAMINATION="LTLFireability"
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 QuasiCertifProtocol-PT-18, examination is LTLFireability"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r126-oct2-155274853400286"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/QuasiCertifProtocol-PT-18.tgz
mv QuasiCertifProtocol-PT-18 execution
cd execution
if [ "LTLFireability" = "GlobalProperties" ] ; then
rm -f GenericPropertiesVerdict.xml
fi
if [ "LTLFireability" = "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 [ "LTLFireability" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "LTLFireability" != "StateSpace" ] ; then
echo "The expected result is a vector of booleans"
echo BOOL_VECTOR
else
echo "no data necessary for post analysis"
fi
echo
if [ -f "LTLFireability.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property LTLFireability.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "LTLFireability.xml" ] ; then # for cunf (txt files deleted;-)
echo echo "here is the order used to build the result vector(from xml file)"
for x in $(grep '' LTLFireability.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 ;