fond
Model Checking Contest 2020
10th edition, Paris, France, June 23, 2020
Execution of r075-tajo-158922839600138
Last Updated
Jun 28, 2020

About the Execution of 2019-Gold for Diffusion2D-PT-D40N150

Execution Summary
Max Memory
Used (MB)
Time wait (ms) CPU Usage (ms) I/O Wait (ms) Computed Result Execution
Status
4295.090 52322.00 53875.00 22.60 FTFFFFFFFFTFFFFF normal

Execution Chart

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

Trace from the execution

Formatting '/mnt/tpsp/fkordon/mcc2020-input.r075-tajo-158922839600138.qcow2', fmt=qcow2 size=4294967296 backing_file='/mnt/tpsp/fkordon/mcc2020-input.qcow2' encryption=off cluster_size=65536 lazy_refcounts=off
Waiting for the VM to be ready (probing ssh)
...............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
=====================================================================
Generated by BenchKit 2-4028
Executing tool win2019
Input is Diffusion2D-PT-D40N150, examination is LTLFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r075-tajo-158922839600138
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 4.9M
-rw-r--r-- 1 mcc users 4.2K Mar 31 06:35 CTLCardinality.txt
-rw-r--r-- 1 mcc users 21K Mar 31 06:35 CTLCardinality.xml
-rw-r--r-- 1 mcc users 3.6K Mar 29 22:56 CTLFireability.txt
-rw-r--r-- 1 mcc users 21K Mar 29 22:56 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.0K Mar 24 05:37 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 5.8K Mar 24 05:37 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 4.3K Apr 8 14:49 LTLCardinality.txt
-rw-r--r-- 1 mcc users 27K Apr 28 14:00 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.5K Apr 8 14:49 LTLFireability.txt
-rw-r--r-- 1 mcc users 17K Apr 28 14:00 LTLFireability.xml
-rw-r--r-- 1 mcc users 4.0K Mar 28 14:32 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 18K Mar 28 14:32 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 3.6K Mar 27 07:32 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 19K Mar 27 07:32 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.8K Mar 28 14:50 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.9K Mar 28 14:50 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 24 05:37 equiv_col
-rw-r--r-- 1 mcc users 8 Mar 24 05:37 instance
-rw-r--r-- 1 mcc users 6 Mar 24 05:37 iscolored
-rw-r--r-- 1 mcc users 4.7M 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 Diffusion2D-PT-D40N150-00
FORMULA_NAME Diffusion2D-PT-D40N150-01
FORMULA_NAME Diffusion2D-PT-D40N150-02
FORMULA_NAME Diffusion2D-PT-D40N150-03
FORMULA_NAME Diffusion2D-PT-D40N150-04
FORMULA_NAME Diffusion2D-PT-D40N150-05
FORMULA_NAME Diffusion2D-PT-D40N150-06
FORMULA_NAME Diffusion2D-PT-D40N150-07
FORMULA_NAME Diffusion2D-PT-D40N150-08
FORMULA_NAME Diffusion2D-PT-D40N150-09
FORMULA_NAME Diffusion2D-PT-D40N150-10
FORMULA_NAME Diffusion2D-PT-D40N150-11
FORMULA_NAME Diffusion2D-PT-D40N150-12
FORMULA_NAME Diffusion2D-PT-D40N150-13
FORMULA_NAME Diffusion2D-PT-D40N150-14
FORMULA_NAME Diffusion2D-PT-D40N150-15

=== Now, execution of the tool begins

BK_START 1589546112804

info: Time: 3600 - MCC
vrfy: Checking LTLFireability @ Diffusion2D-PT-D40N150 @ 3570 seconds

FORMULA Diffusion2D-PT-D40N150-00 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA Diffusion2D-PT-D40N150-01 TRUE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA Diffusion2D-PT-D40N150-09 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA Diffusion2D-PT-D40N150-13 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA Diffusion2D-PT-D40N150-14 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA Diffusion2D-PT-D40N150-15 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA Diffusion2D-PT-D40N150-10 TRUE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA Diffusion2D-PT-D40N150-06 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA Diffusion2D-PT-D40N150-04 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA Diffusion2D-PT-D40N150-05 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA Diffusion2D-PT-D40N150-11 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA Diffusion2D-PT-D40N150-12 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA Diffusion2D-PT-D40N150-07 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA Diffusion2D-PT-D40N150-03 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA Diffusion2D-PT-D40N150-02 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA Diffusion2D-PT-D40N150-08 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT
vrfy: finished
info: timeLeft: 3517
rslt: Output for LTLFireability @ Diffusion2D-PT-D40N150

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"processed": "A (F (G ((FIREABLE(t1_28_22_29_21) AND (G (F (NOT FIREABLE(t1_2_11_2_10))) AND F (FIREABLE(t1_40_39_40_40)))))))",
"processed_size": 112,
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"result":
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"edges": 929,
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"produced_by": "LTL model checker",
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"task":
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"type": "product automaton/dfs"
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"type": "LTL",
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{
"call":
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"localtimelimit": 3518
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"child":
[

{
"call":
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"formula":
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},
"processed": "A (G (NOT FIREABLE(t1_13_13_12_14)))",
"processed_size": 36,
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"result":
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"search":
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"threads": 1,
"type": "dfs"
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"stateequation":
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"problems": 1
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"type": "invariance",
"workflow": "stateequation||search"
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"exit":
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"result":
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],
"exit":
{
"error": null,
"memory": 127932,
"runtime": 53.000000,
"signal": null,
"timelimitreached": false
},
"files":
{
"formula": "LTLFireability.xml",
"net": "model.pnml"
},
"formula":
{
"skeleton": "A(X(X(G(**)))) : A((G((F(**) OR (** AND G(**)))) OR X(F(*)))) : A(F(G((** AND (G(F(*)) AND F(**)))))) : A(G((** OR (** OR (G((* AND F(*))) AND F(**)))))) : A(G(F((G(*) OR (* AND *))))) : A(F(G(**))) : A(F(G(*))) : A((G(**) OR (* R F(**)))) : (A(G(*)) AND A(G((F(G(*)) OR G(*))))) : A(X(G(*))) : A(F(*)) : A(F((** OR (G((G(**) OR G(F(**)))) AND F(**))))) : A(((** U **) U G((** OR G(**))))) : (A(G(F(**))) AND A(G((** OR ((* R *) U X(**)))))) : A((X(G((** AND G(**)))) U **)) : A((** U (** AND X(F(**)))))"
},
"net":
{
"arcs": 24648,
"conflict_clusters": 1600,
"places": 1600,
"places_significant": 1599,
"singleton_clusters": 0,
"transitions": 12324
},
"result":
{
"preliminary_value": "no yes no no no no no no no no yes no no no no no ",
"value": "no yes no no no no no no no no yes no no no no no "
},
"task":
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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: 13924/268435456 symbol table entries, 0 collisions
lola: preprocessing...
lola: Size of bit vector: 51200
lola: finding significant places
lola: 1600 places, 12324 transitions, 1599 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 (X (G (X (FIREABLE(t1_6_8_6_9))))) : A ((G ((F (NOT FIREABLE(t1_15_19_16_19)) OR (FIREABLE(t1_15_19_16_19) AND G (FIREABLE(t1_18_19_18_20))))) OR NOT(G (X (FIREABLE(t1_15_19_16_19)))))) : A (F (G (X (((FIREABLE(t1_28_22_29_21) AND G (X (NOT(F (G (FIREABLE(t1_2_11_2_10))))))) AND F (FIREABLE(t1_40_39_40_40))))))) : A (G ((FIREABLE(t1_13_20_12_20) OR (NOT(F ((FIREABLE(t1_13_20_12_20) OR G (FIREABLE(t1_27_12_27_13))))) U (FIREABLE(t1_10_37_10_38) OR FIREABLE(t1_27_12_27_13)))))) : A (F (G (NOT(G ((FIREABLE(t1_6_17_5_17) U FIREABLE(t1_3_24_3_23))))))) : A (NOT(G (NOT(G ((FIREABLE(t1_10_25_9_25) OR NOT FIREABLE(t1_33_18_34_18))))))) : A (G (X (X (X (F (NOT(X (NOT(G (NOT((FIREABLE(t1_15_34_16_33) U FIREABLE(t1_24_30_23_31))))))))))))) : A ((G (FIREABLE(t1_26_31_26_30)) OR NOT((FIREABLE(t1_2_39_1_38) U NOT(F ((FIREABLE(t1_29_12_28_12) OR FIREABLE(t1_2_39_1_38)))))))) : A (G (NOT(((FIREABLE(t1_13_13_12_14) U X (X (G (F (X (F (FIREABLE(t1_34_24_33_25)))))))) U FIREABLE(t1_13_13_12_14))))) : A (NOT(X (F (FIREABLE(t1_13_36_12_36))))) : A (NOT(G (FIREABLE(t1_7_37_8_37)))) : A (F ((G ((G ((FIREABLE(t1_4_38_5_39) OR FIREABLE(t1_4_23_3_24))) OR G (X (F (FIREABLE(t1_35_11_36_10)))))) U FIREABLE(t1_4_23_3_24)))) : A (((FIREABLE(t1_17_3_18_3) U ((FIREABLE(t1_19_28_20_27) AND FIREABLE(t1_14_22_15_23)) U FIREABLE(t1_17_3_18_3))) U G ((FIREABLE(t1_19_28_20_27) OR G (FIREABLE(t1_17_3_18_3)))))) : A (G ((FIREABLE(t1_11_31_10_30) U (NOT((FIREABLE(t1_2_13_1_13) U NOT FIREABLE(t1_13_10_14_10))) U X (FIREABLE(t1_2_13_1_13)))))) : A ((G (X (G ((FIREABLE(t1_23_29_23_30) AND G (FIREABLE(t1_15_32_16_32)))))) U FIREABLE(t1_22_10_23_10))) : A (((FIREABLE(t1_8_17_9_17) AND FIREABLE(t1_19_15_19_14)) U ((FIREABLE(t1_19_15_19_14) OR (FIREABLE(t1_8_17_9_17) AND FIREABLE(t1_19_15_19_14))) AND F (X (FIREABLE(t1_16_15_16_16))))))
lola: rewrite Frontend/Parser/formula_rewrite.k:353
lola: rewrite Frontend/Parser/formula_rewrite.k:353
lola: rewrite Frontend/Parser/formula_rewrite.k:335
lola: rewrite Frontend/Parser/formula_rewrite.k:329
lola: rewrite Frontend/Parser/formula_rewrite.k:297
lola: rewrite Frontend/Parser/formula_rewrite.k:332
lola: rewrite Frontend/Parser/formula_rewrite.k:329
lola: rewrite Frontend/Parser/formula_rewrite.k:297
lola: rewrite Frontend/Parser/formula_rewrite.k:377
lola: rewrite Frontend/Parser/formula_rewrite.k:350
lola: rewrite Frontend/Parser/formula_rewrite.k:251
lola: rewrite Frontend/Parser/formula_rewrite.k:353
lola: rewrite Frontend/Parser/formula_rewrite.k:356
lola: rewrite Frontend/Parser/formula_rewrite.k:380
lola: rewrite Frontend/Parser/formula_rewrite.k:332
lola: rewrite Frontend/Parser/formula_rewrite.k:318
lola: rewrite Frontend/Parser/formula_rewrite.k:297
lola: rewrite Frontend/Parser/formula_rewrite.k:329
lola: rewrite Frontend/Parser/formula_rewrite.k:297
lola: rewrite Frontend/Parser/formula_rewrite.k:431
lola: rewrite Frontend/Parser/formula_rewrite.k:437
lola: rewrite Frontend/Parser/formula_rewrite.k:522
lola: rewrite Frontend/Parser/formula_rewrite.k:329
lola: rewrite Frontend/Parser/formula_rewrite.k:315
lola: rewrite Frontend/Parser/formula_rewrite.k:332
lola: rewrite Frontend/Parser/formula_rewrite.k:297
lola: rewrite Frontend/Parser/formula_rewrite.k:318
lola: rewrite Frontend/Parser/formula_rewrite.k:297
lola: rewrite Frontend/Parser/formula_rewrite.k:297
lola: rewrite Frontend/Parser/formula_rewrite.k:371
lola: rewrite Frontend/Parser/formula_rewrite.k:329
lola: rewrite Frontend/Parser/formula_rewrite.k:297
lola: rewrite Frontend/Parser/formula_rewrite.k:329
lola: rewrite Frontend/Parser/formula_rewrite.k:332
lola: rewrite Frontend/Parser/formula_rewrite.k:300
lola: rewrite Frontend/Parser/formula_rewrite.k:338
lola: rewrite Frontend/Parser/formula_rewrite.k:297
lola: rewrite Frontend/Parser/formula_rewrite.k:297
lola: rewrite Frontend/Parser/formula_rewrite.k:329
lola: rewrite Frontend/Parser/formula_rewrite.k:341
lola: rewrite Frontend/Parser/formula_rewrite.k:300
lola: rewrite Frontend/Parser/formula_rewrite.k:300
lola: rewrite Frontend/Parser/formula_rewrite.k:434
lola: rewrite Frontend/Parser/formula_rewrite.k:335
lola: rewrite Frontend/Parser/formula_rewrite.k:332
lola: rewrite Frontend/Parser/formula_rewrite.k:297
lola: rewrite Frontend/Parser/formula_rewrite.k:356
lola: rewrite Frontend/Parser/formula_rewrite.k:380
lola: rewrite Frontend/Parser/formula_rewrite.k:380
lola: rewrite Frontend/Parser/formula_rewrite.k:380
lola: rewrite Frontend/Parser/formula_rewrite.k:380
lola: rewrite Frontend/Parser/formula_rewrite.k:374
lola: rewrite Frontend/Parser/formula_rewrite.k:332
lola: rewrite Frontend/Parser/formula_rewrite.k:297
lola: rewrite Frontend/Parser/formula_rewrite.k:338
lola: rewrite Frontend/Parser/formula_rewrite.k:297
lola: rewrite Frontend/Parser/formula_rewrite.k:329
lola: rewrite Frontend/Parser/formula_rewrite.k:300
lola: rewrite Frontend/Parser/formula_rewrite.k:356
lola: rewrite Frontend/Parser/formula_rewrite.k:347
lola: rewrite Frontend/Parser/formula_rewrite.k:353
lola: rewrite Frontend/Parser/formula_rewrite.k:377
lola: rewrite Frontend/Parser/formula_rewrite.k:377
lola: rewrite Frontend/Parser/formula_rewrite.k:377
lola: rewrite Frontend/Parser/formula_rewrite.k:425
lola: rewrite Frontend/Parser/formula_rewrite.k:431
lola: rewrite Frontend/Parser/formula_rewrite.k:318
lola: rewrite Frontend/Parser/formula_rewrite.k:297
lola: rewrite Frontend/Parser/formula_rewrite.k:315
lola: rewrite Frontend/Parser/formula_rewrite.k:329
lola: rewrite Frontend/Parser/formula_rewrite.k:332
lola: rewrite Frontend/Parser/formula_rewrite.k:297
lola: rewrite Frontend/Parser/formula_rewrite.k:332
lola: rewrite Frontend/Parser/formula_rewrite.k:297
lola: rewrite Frontend/Parser/formula_rewrite.k:545
lola: rewrite Frontend/Parser/formula_rewrite.k:335
lola: rewrite Frontend/Parser/formula_rewrite.k:332
lola: rewrite Frontend/Parser/formula_rewrite.k:297
lola: rewrite Frontend/Parser/formula_rewrite.k:329
lola: rewrite Frontend/Parser/formula_rewrite.k:297
lola: rewrite Frontend/Parser/formula_rewrite.k:353
lola: rewrite Frontend/Parser/formula_rewrite.k:377
lola: rewrite Frontend/Parser/formula_rewrite.k:431
lola: rewrite Frontend/Parser/formula_rewrite.k:488
lola: rewrite Frontend/Parser/formula_rewrite.k:338
lola: rewrite Frontend/Parser/formula_rewrite.k:297
lola: rewrite Frontend/Parser/formula_rewrite.k:297
lola: rewrite Frontend/Parser/formula_rewrite.k:437
lola: rewrite Frontend/Parser/formula_rewrite.k:434
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:522
lola: rewrite Frontend/Parser/formula_rewrite.k:545
lola: rewrite Frontend/Parser/formula_rewrite.k:353
lola: rewrite Frontend/Parser/formula_rewrite.k:350
lola: rewrite Frontend/Parser/formula_rewrite.k:356
lola: computing a collection of formulas
lola: RUNNING
lola: subprocess 0 will run for 222 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: A (X (X (G (FIREABLE(t1_6_8_6_9)))))
lola: ========================================
lola: SUBTASK
lola: checking LTL
lola: transforming LTL-Formula into a Büchi-Automaton
lola: processed formula: A (X (X (G (FIREABLE(t1_6_8_6_9)))))
lola: processed formula length: 36
lola: 97 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: 616 markings, 616 edges
lola: ========================================
lola: subprocess 1 will run for 237 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: A ((G ((F (NOT FIREABLE(t1_15_19_16_19)) OR (FIREABLE(t1_15_19_16_19) AND G (FIREABLE(t1_18_19_18_20))))) OR X (F (NOT FIREABLE(t1_15_19_16_19)))))
lola: ========================================
lola: SUBTASK
lola: checking LTL
lola: transforming LTL-Formula into a Büchi-Automaton
lola: processed formula: A ((G ((F (NOT FIREABLE(t1_15_19_16_19)) OR (FIREABLE(t1_15_19_16_19) AND G (FIREABLE(t1_18_19_18_20))))) OR X (F (NOT FIREABLE(t1_15_19_16_19)))))
lola: processed formula length: 147
lola: 97 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: yes
lola: produced by: LTL model checker
lola: The net satisfies the given formula (language of the product automaton is empty).
lola: 9 markings, 8 edges
lola: ========================================
lola: subprocess 2 will run for 254 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: A (X (G (NOT FIREABLE(t1_13_36_12_36))))
lola: ========================================
lola: SUBTASK
lola: checking LTL
lola: transforming LTL-Formula into a Büchi-Automaton
lola: processed formula: A (X (G (NOT FIREABLE(t1_13_36_12_36))))
lola: processed formula length: 40
lola: 97 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: 14812 markings, 36811 edges
lola: ========================================
lola: subprocess 3 will run for 274 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: (A (G (F (FIREABLE(t1_2_13_1_13)))) AND A (G ((FIREABLE(t1_11_31_10_30) OR ((NOT FIREABLE(t1_2_13_1_13) R FIREABLE(t1_13_10_14_10)) U X (FIREABLE(t1_2_13_1_13)))))))
lola: ========================================
lola: SUBTASK
lola: checking a Boolean combination of formulas
lola: RUNNING
lola: subprocess 3 will run for 274 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: A (G (F (FIREABLE(t1_2_13_1_13))))
lola: ========================================
lola: SUBTASK
lola: checking LTL
lola: transforming LTL-Formula into a Büchi-Automaton
lola: processed formula: A (G (F (FIREABLE(t1_2_13_1_13))))
lola: processed formula length: 34
lola: 97 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: 3152 markings, 3152 edges
lola: ========================================
lola: SUBRESULT
lola: result: no
lola: The Boolean predicate is false.
lola: ========================================
lola: subprocess 4 will run for 297 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: A ((X (G ((FIREABLE(t1_23_29_23_30) AND G (FIREABLE(t1_15_32_16_32))))) U FIREABLE(t1_22_10_23_10)))
lola: ========================================
lola: SUBTASK
lola: checking LTL
lola: transforming LTL-Formula into a Büchi-Automaton
lola: processed formula: A ((X (G ((FIREABLE(t1_23_29_23_30) AND G (FIREABLE(t1_15_32_16_32))))) U FIREABLE(t1_22_10_23_10)))
lola: processed formula length: 100
lola: 97 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: 616 markings, 616 edges
lola: ========================================
lola: subprocess 5 will run for 324 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: A (((FIREABLE(t1_8_17_9_17) AND FIREABLE(t1_19_15_19_14)) U ((FIREABLE(t1_19_15_19_14) OR (FIREABLE(t1_8_17_9_17) AND FIREABLE(t1_19_15_19_14))) AND X (F (FIREABLE(t1_16_15_16_16))))))
lola: ========================================
lola: SUBTASK
lola: checking LTL
lola: transforming LTL-Formula into a Büchi-Automaton
lola: processed formula: A (((FIREABLE(t1_8_17_9_17) AND FIREABLE(t1_19_15_19_14)) U ((FIREABLE(t1_19_15_19_14) OR (FIREABLE(t1_8_17_9_17) AND FIREABLE(t1_19_15_19_14))) AND X (F (FIREABLE(t1_16_15_16_16))))))
lola: processed formula length: 185
lola: 97 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: 616 markings, 616 edges
lola: ========================================
lola: subprocess 6 will run for 356 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: A (F (NOT FIREABLE(t1_7_37_8_37)))
lola: ========================================
lola: SUBTASK
lola: checking eventual occurrence
lola: rewrite Frontend/Parser/formula_rewrite.k:749
lola: rewrite Frontend/Parser/formula_rewrite.k:788
lola: processed formula: FIREABLE(t1_7_37_8_37)
lola: processed formula length: 22
lola: 99 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: yes
lola: produced by: state space / EG
lola: The predicate eventually occurs.
lola: 1 markings, 0 edges
lola: ========================================
lola: subprocess 7 will run for 396 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: A (F (G (NOT FIREABLE(t1_24_30_23_31))))
lola: ========================================
lola: SUBTASK
lola: checking LTL
lola: transforming LTL-Formula into a Büchi-Automaton
lola: processed formula: A (F (G (NOT FIREABLE(t1_24_30_23_31))))
lola: processed formula length: 40
lola: 97 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: 135582 markings, 326713 edges, 27116 markings/sec, 0 secs
lola: 247752 markings, 667225 edges, 22434 markings/sec, 5 secs
lola: add low 9200
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: 332161 markings, 919152 edges
lola: ========================================
lola: subprocess 8 will run for 443 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: A (G (F ((G (NOT FIREABLE(t1_3_24_3_23)) OR (NOT FIREABLE(t1_6_17_5_17) AND NOT FIREABLE(t1_3_24_3_23))))))
lola: ========================================
lola: SUBTASK
lola: checking LTL
lola: transforming LTL-Formula into a Büchi-Automaton
lola: processed formula: A (G (F ((G (NOT FIREABLE(t1_3_24_3_23)) OR (NOT FIREABLE(t1_6_17_5_17) AND NOT FIREABLE(t1_3_24_3_23))))))
lola: processed formula length: 107
lola: 97 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: 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: 134625 markings, 343363 edges, 26925 markings/sec, 0 secs
lola: 211934 markings, 626470 edges, 15462 markings/sec, 5 secs
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: 271253 markings, 844472 edges
lola: lola: ========================================
subprocess 9 will run for 505 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: A (F (G ((FIREABLE(t1_10_25_9_25) OR NOT FIREABLE(t1_33_18_34_18)))))
lola: ========================================
lola: SUBTASK
lola: checking LTL
lola: transforming LTL-Formula into a Büchi-Automaton
lola: processed formula: A (F (G ((FIREABLE(t1_10_25_9_25) OR NOT FIREABLE(t1_33_18_34_18)))))
lola: processed formula length: 70
lola: 97 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: 126951 markings, 306563 edges, 25390 markings/sec, 0 secs
lola: 224092 markings, 659431 edges, 19428 markings/sec, 5 secs
lola: 317184 markings, 1011965 edges, 18618 markings/sec, 10 secs
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: 369411 markings, 1215003 edges
lola: ========================================
lola: subprocess 10 will run for 586 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: A (F ((FIREABLE(t1_4_23_3_24) OR (G ((G ((FIREABLE(t1_4_38_5_39) OR FIREABLE(t1_4_23_3_24))) OR G (F (FIREABLE(t1_35_11_36_10))))) AND F (FIREABLE(t1_4_23_3_24))))))
lola: ========================================
lola: SUBTASK
lola: checking LTL
lola: transforming LTL-Formula into a Büchi-Automaton
lola: processed formula: A (F ((FIREABLE(t1_4_23_3_24) OR (G ((G ((FIREABLE(t1_4_38_5_39) OR FIREABLE(t1_4_23_3_24))) OR G (F (FIREABLE(t1_35_11_36_10))))) AND F (FIREABLE(t1_4_23_3_24))))))
lola: processed formula length: 166
lola: 97 rewrites
lola: closed formula file LTLFireability.xml
lola: the resulting Büchi automaton has 22 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: 3152 markings, 3152 edges
lola: ========================================
lola: subprocess 11 will run for 703 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: A ((((FIREABLE(t1_19_28_20_27) AND FIREABLE(t1_14_22_15_23)) U FIREABLE(t1_17_3_18_3)) U G ((FIREABLE(t1_19_28_20_27) OR G (FIREABLE(t1_17_3_18_3))))))
lola: ========================================
lola: SUBTASK
lola: checking LTL
lola: transforming LTL-Formula into a Büchi-Automaton
lola: processed formula: A ((((FIREABLE(t1_19_28_20_27) AND FIREABLE(t1_14_22_15_23)) U FIREABLE(t1_17_3_18_3)) U G ((FIREABLE(t1_19_28_20_27) OR G (FIREABLE(t1_17_3_18_3))))))
lola: processed formula length: 151
lola: 97 rewrites
lola: closed formula file LTLFireability.xml
lola: the resulting Büchi automaton has 12 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: 3152 markings, 3152 edges
lola: ========================================
lola: subprocess 12 will run for 879 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: A ((G (FIREABLE(t1_26_31_26_30)) OR (NOT FIREABLE(t1_2_39_1_38) R F ((FIREABLE(t1_29_12_28_12) OR FIREABLE(t1_2_39_1_38))))))
lola: ========================================
lola: SUBTASK
lola: checking LTL
lola: transforming LTL-Formula into a Büchi-Automaton
lola: processed formula: A ((G (FIREABLE(t1_26_31_26_30)) OR (NOT FIREABLE(t1_2_39_1_38) R F ((FIREABLE(t1_29_12_28_12) OR FIREABLE(t1_2_39_1_38))))))
lola: processed formula length: 126
lola: 97 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: 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: 3152 markings, 3152 edges
lola: ========================================
lola: subprocess 13 will run for 1172 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: A (G ((FIREABLE(t1_13_20_12_20) OR ((FIREABLE(t1_10_37_10_38) OR FIREABLE(t1_27_12_27_13)) OR (G ((NOT FIREABLE(t1_13_20_12_20) AND F (NOT FIREABLE(t1_27_12_27_13)))) AND F ((FIREABLE(t1_10_37_10_38) OR FIREABLE(t1_27_12_27_13))))))))
lola: ========================================
lola: SUBTASK
lola: checking LTL
lola: transforming LTL-Formula into a Büchi-Automaton
lola: processed formula: A (G ((FIREABLE(t1_13_20_12_20) OR ((FIREABLE(t1_10_37_10_38) OR FIREABLE(t1_27_12_27_13)) OR (G ((NOT FIREABLE(t1_13_20_12_20) AND F (NOT FIREABLE(t1_27_12_27_13)))) AND F ((FIREABLE(t1_10_37_10_38) OR FIREABLE(t1_27_12_27_13))))))))
lola: processed formula length: 236
lola: 97 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: 3152 markings, 3152 edges
lola: ========================================
lola: subprocess 14 will run for 1759 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: A (F (G ((FIREABLE(t1_28_22_29_21) AND (G (F (NOT FIREABLE(t1_2_11_2_10))) AND F (FIREABLE(t1_40_39_40_40)))))))
lola: ========================================
lola: SUBTASK
lola: checking LTL
lola: transforming LTL-Formula into a Büchi-Automaton
lola: processed formula: A (F (G ((FIREABLE(t1_28_22_29_21) AND (G (F (NOT FIREABLE(t1_2_11_2_10))) AND F (FIREABLE(t1_40_39_40_40)))))))
lola: processed formula length: 112
lola: 97 rewrites
lola: closed formula file LTLFireability.xml
lola: the resulting Büchi automaton has 7 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: 928 markings, 929 edges
lola: ========================================
lola: subprocess 15 will run for 3518 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: (A (G (NOT FIREABLE(t1_13_13_12_14))) AND A (G ((F (G (NOT FIREABLE(t1_34_24_33_25))) OR G (NOT FIREABLE(t1_13_13_12_14))))))
lola: ========================================
lola: SUBTASK
lola: checking a Boolean combination of formulas
lola: RUNNING
lola: subprocess 15 will run for 3517 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: A (G (NOT FIREABLE(t1_13_13_12_14)))
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 (NOT FIREABLE(t1_13_13_12_14)))
lola: processed formula length: 36
lola: 99 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:788
lola: state equation task get result rewrite finished id 0
lola: state equation task get result unparse finished++ id 0
lola: formula 0: FIREABLE(t1_13_13_12_14)
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: 9 markings, 8 edges
lola: ========================================
lola: SUBRESULT
lola: result: no
lola: The Boolean predicate is false.
lola: ========================================
lola: RESULT
lola:
SUMMARY: no yes no no no no no no no no yes no no no no no
lola:
preliminary result: no yes no no no no no no no no yes no no no no no
lola: memory consumption: 127932 KB
lola: time consumption: 53 seconds
lola: print data as JSON (--json)
lola: writing JSON to LTLFireability.json
lola: closed JSON file LTLFireability.json
rslt: finished

BK_STOP 1589546165126

--------------------
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="Diffusion2D-PT-D40N150"
export BK_EXAMINATION="LTLFireability"
export BK_TOOL="win2019"
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 win2019"
echo " Input is Diffusion2D-PT-D40N150, 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 r075-tajo-158922839600138"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/Diffusion2D-PT-D40N150.tgz
mv Diffusion2D-PT-D40N150 execution
cd execution
if [ "LTLFireability" = "ReachabilityDeadlock" ] || [ "LTLFireability" = "UpperBounds" ] || [ "LTLFireability" = "QuasiLiveness" ] || [ "LTLFireability" = "StableMarking" ] || [ "LTLFireability" = "Liveness" ] || [ "LTLFireability" = "OneSafe" ] || [ "LTLFireability" = "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 [ "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
elif [ "LTLFireability" = "ReachabilityDeadlock" ] || [ "LTLFireability" = "QuasiLiveness" ] || [ "LTLFireability" = "StableMarking" ] || [ "LTLFireability" = "Liveness" ] || [ "LTLFireability" = "OneSafe" ] ; then
echo "FORMULA_NAME LTLFireability"
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 ;