fond
Model Checking Contest 2023
13th edition, Paris, France, April 26, 2023 (at TOOLympics II)
Execution of r065-smll-167814393000161
Last Updated
May 14, 2023

About the Execution of Marcie for CircularTrains-PT-048

Execution Summary
Max Memory
Used (MB)
Time wait (ms) CPU Usage (ms) I/O Wait (ms) Computed Result Execution
Status
10148.296 199505.00 199060.00 0.00 FTFTFTFTTFFTFFFT normal

Execution Chart

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

Trace from the execution

Formatting '/data/fkordon/mcc2023-input.r065-smll-167814393000161.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2023-input.qcow2 cluster_size=65536 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
..........................................................
=====================================================================
Generated by BenchKit 2-5348
Executing tool marcie
Input is CircularTrains-PT-048, examination is CTLCardinality
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 1
Run identifier is r065-smll-167814393000161
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 524K
-rw-r--r-- 1 mcc users 8.5K Feb 26 04:31 CTLCardinality.txt
-rw-r--r-- 1 mcc users 90K Feb 26 04:31 CTLCardinality.xml
-rw-r--r-- 1 mcc users 6.2K Feb 26 04:31 CTLFireability.txt
-rw-r--r-- 1 mcc users 53K Feb 26 04:31 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Jan 29 11:40 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.4K Jan 29 11:40 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 3.9K Feb 25 15:42 LTLCardinality.txt
-rw-r--r-- 1 mcc users 27K Feb 25 15:42 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.5K Feb 25 15:42 LTLFireability.txt
-rw-r--r-- 1 mcc users 17K Feb 25 15:42 LTLFireability.xml
-rw-r--r-- 1 mcc users 15K Feb 26 04:33 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 153K Feb 26 04:33 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 6.4K Feb 26 04:32 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 44K Feb 26 04:32 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K Feb 25 15:42 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.8K Feb 25 15:42 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 5 18:22 equiv_col
-rw-r--r-- 1 mcc users 4 Mar 5 18:22 instance
-rw-r--r-- 1 mcc users 6 Mar 5 18:22 iscolored
-rw-r--r-- 1 mcc users 37K Mar 5 18:22 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 CircularTrains-PT-048-CTLCardinality-00
FORMULA_NAME CircularTrains-PT-048-CTLCardinality-01
FORMULA_NAME CircularTrains-PT-048-CTLCardinality-02
FORMULA_NAME CircularTrains-PT-048-CTLCardinality-03
FORMULA_NAME CircularTrains-PT-048-CTLCardinality-04
FORMULA_NAME CircularTrains-PT-048-CTLCardinality-05
FORMULA_NAME CircularTrains-PT-048-CTLCardinality-06
FORMULA_NAME CircularTrains-PT-048-CTLCardinality-07
FORMULA_NAME CircularTrains-PT-048-CTLCardinality-08
FORMULA_NAME CircularTrains-PT-048-CTLCardinality-09
FORMULA_NAME CircularTrains-PT-048-CTLCardinality-10
FORMULA_NAME CircularTrains-PT-048-CTLCardinality-11
FORMULA_NAME CircularTrains-PT-048-CTLCardinality-12
FORMULA_NAME CircularTrains-PT-048-CTLCardinality-13
FORMULA_NAME CircularTrains-PT-048-CTLCardinality-14
FORMULA_NAME CircularTrains-PT-048-CTLCardinality-15

=== Now, execution of the tool begins

BK_START 1678270204196

bash -c /home/mcc/BenchKit/BenchKit_head.sh 2> STDERR ; echo ; echo -n "BK_STOP " ; date -u +%s%3N
Invoking MCC driver with
BK_TOOL=marcie
BK_EXAMINATION=CTLCardinality
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=CircularTrains-PT-048
Not applying reductions.
Model is PT
CTLCardinality PT
timeout --kill-after=10s --signal=SIGINT 1m for testing only

Marcie built on Linux at 2019-11-18.
A model checker for Generalized Stochastic Petri nets

authors: Alex Tovchigrechko (IDD package and CTL model checking)

Martin Schwarick (Symbolic numerical analysis and CSL model checking)

Christian Rohr (Simulative and approximative numerical model checking)

marcie@informatik.tu-cottbus.de

called as: /home/mcc/BenchKit/bin//../marcie/bin/marcie --net-file=model.pnml --mcc-file=CTLCardinality.xml --memory=6 --mcc-mode

parse successfull
net created successfully

Net: CircularTrains_PT_048
(NrP: 96 NrTr: 48 NrArc: 192)

parse formulas
formulas created successfully
place and transition orderings generation:0m 0.001sec

net check time: 0m 0.000sec

init dd package: 0m 3.561sec


RS generation: 0m 0.172sec


-> reachability set: #nodes 3083 (3.1e+03) #states 23,973,456,915 (10)



starting MCC model checker
--------------------------

checking: EG [F47<=1]
normalized: EG [F47<=1]

abstracting: (F47<=1)
states: 15,400,554,750 (10)
.
EG iterations: 1
-> the formula is TRUE

FORMULA CircularTrains-PT-048-CTLCardinality-08 TRUE TECHNIQUES SEQUENTIAL_PROCESSING DECISION_DIAGRAMS UNFOLDING_TO_PT

MC time: 0m 0.042sec

checking: EG [Section_5<=0]
normalized: EG [Section_5<=0]

abstracting: (Section_5<=0)
states: 14,462,123,760 (10)
...........................................................................................................................................................................................................................................................................................................................................................................
EG iterations: 363
-> the formula is FALSE

FORMULA CircularTrains-PT-048-CTLCardinality-13 FALSE TECHNIQUES SEQUENTIAL_PROCESSING DECISION_DIAGRAMS UNFOLDING_TO_PT

MC time: 0m 5.441sec

checking: AX [AG [E [1<=Section_1 U EF [1<=F20]]]]
normalized: ~ [EX [E [true U ~ [E [1<=Section_1 U E [true U 1<=F20]]]]]]

abstracting: (1<=F20)
states: 20,351,345,355 (10)
abstracting: (1<=Section_1)
states: 4,950,790,605 (9)
.-> the formula is TRUE

FORMULA CircularTrains-PT-048-CTLCardinality-07 TRUE TECHNIQUES SEQUENTIAL_PROCESSING DECISION_DIAGRAMS UNFOLDING_TO_PT

MC time: 0m 0.074sec

checking: EX [AX [[[EG [EX [1<=Section_22]] & [AF [1<=Section_45] | AX [1<=F41]]] | EG [AG [1<=F17]]]]]
normalized: EX [~ [EX [~ [[EG [~ [E [true U ~ [1<=F17]]]] | [[~ [EX [~ [1<=F41]]] | ~ [EG [~ [1<=Section_45]]]] & EG [EX [1<=Section_22]]]]]]]]

abstracting: (1<=Section_22)
states: 4,950,790,605 (9)
.....................................................................................................................................................................................................................................................................................................................................................
EG iterations: 340
abstracting: (1<=Section_45)
states: 9,511,333,155 (9)
...........................................................................................................................................................................................................................................................................................................................................................................
EG iterations: 363
abstracting: (1<=F41)
states: 20,351,345,355 (10)
.abstracting: (1<=F17)
states: 20,351,345,355 (10)
.
EG iterations: 1
..-> the formula is FALSE

FORMULA CircularTrains-PT-048-CTLCardinality-06 FALSE TECHNIQUES SEQUENTIAL_PROCESSING DECISION_DIAGRAMS UNFOLDING_TO_PT

MC time: 0m12.040sec

checking: ~ [EG [[[AX [EX [Section_5<=F27]] | [~ [EF [Section_17<=0]] | EF [Section_13<=0]]] & EX [[EX [F29<=0] | ~ [EX [F39<=Section_4]]]]]]]
normalized: ~ [EG [[EX [[~ [EX [F39<=Section_4]] | EX [F29<=0]]] & [[E [true U Section_13<=0] | ~ [E [true U Section_17<=0]]] | ~ [EX [~ [EX [Section_5<=F27]]]]]]]]

abstracting: (Section_5<=F27)
states: 18,388,271,490 (10)
..abstracting: (Section_17<=0)
states: 14,462,123,760 (10)
abstracting: (Section_13<=0)
states: 19,022,666,310 (10)
abstracting: (F29<=0)
states: 3,622,111,560 (9)
.abstracting: (F39<=Section_4)
states: 16,425,197,625 (10)
...
EG iterations: 1
-> the formula is FALSE

FORMULA CircularTrains-PT-048-CTLCardinality-04 FALSE TECHNIQUES SEQUENTIAL_PROCESSING DECISION_DIAGRAMS UNFOLDING_TO_PT

MC time: 0m 0.419sec

checking: EG [~ [[[[[A [F6<=1 U 1<=F16] & ~ [EX [Section_37<=F41]]] & Section_46<=1] & 1<=F13] & 1<=Section_38]]]
normalized: EG [~ [[1<=Section_38 & [1<=F13 & [Section_46<=1 & [~ [EX [Section_37<=F41]] & [~ [EG [~ [1<=F16]]] & ~ [E [~ [1<=F16] U [~ [F6<=1] & ~ [1<=F16]]]]]]]]]]]

abstracting: (1<=F16)
states: 9,511,333,155 (9)
abstracting: (F6<=1)
states: 23,973,456,915 (10)
abstracting: (1<=F16)
states: 9,511,333,155 (9)
abstracting: (1<=F16)
states: 9,511,333,155 (9)
...........................................................................................................................................................................................................................................................................................................................................................................
EG iterations: 363
abstracting: (Section_37<=F41)
states: 23,228,445,840 (10)
.abstracting: (Section_46<=1)
states: 23,973,456,915 (10)
abstracting: (1<=F13)
states: 9,511,333,155 (9)
abstracting: (1<=Section_38)
states: 9,511,333,155 (9)

EG iterations: 0
-> the formula is TRUE

FORMULA CircularTrains-PT-048-CTLCardinality-05 TRUE TECHNIQUES SEQUENTIAL_PROCESSING DECISION_DIAGRAMS UNFOLDING_TO_PT

MC time: 0m 9.688sec

checking: EG [AX [[Section_40<=F34 | [AG [AF [Section_22<=F5]] & [[F16<=1 & Section_36<=Section_46] | [~ [Section_38<=0] & ~ [Section_27<=0]]]]]]]
normalized: EG [~ [EX [~ [[Section_40<=F34 | [[[~ [Section_27<=0] & ~ [Section_38<=0]] | [F16<=1 & Section_36<=Section_46]] & ~ [E [true U EG [~ [Section_22<=F5]]]]]]]]]]

abstracting: (Section_22<=F5)
states: 23,228,445,840 (10)
.......................................................................................................................................................................
EG iterations: 167
abstracting: (Section_36<=Section_46)
states: 16,425,197,625 (10)
abstracting: (F16<=1)
states: 23,973,456,915 (10)
abstracting: (Section_38<=0)
states: 14,462,123,760 (10)
abstracting: (Section_27<=0)
states: 14,462,123,760 (10)
abstracting: (Section_40<=F34)
states: 20,985,740,175 (10)
..........................................................................................................................................................................................................................
EG iterations: 217
-> the formula is TRUE

FORMULA CircularTrains-PT-048-CTLCardinality-01 TRUE TECHNIQUES SEQUENTIAL_PROCESSING DECISION_DIAGRAMS UNFOLDING_TO_PT

MC time: 0m 6.077sec

checking: AG [[Section_24<=1 | [[~ [AF [EX [F21<=0]]] | [Section_43<=Section_4 & ~ [[AG [F41<=Section_44] & Section_1<=F37]]]] | 1<=Section_27]]]
normalized: ~ [E [true U ~ [[Section_24<=1 | [1<=Section_27 | [[Section_43<=Section_4 & ~ [[Section_1<=F37 & ~ [E [true U ~ [F41<=Section_44]]]]]] | EG [~ [EX [F21<=0]]]]]]]]]

abstracting: (F21<=0)
states: 14,462,123,760 (10)
....................................................................................................................................................................................................................................................................................................................................................
EG iterations: 339
abstracting: (F41<=Section_44)
states: 8,486,690,280 (9)
abstracting: (Section_1<=F37)
states: 20,985,740,175 (10)
abstracting: (Section_43<=Section_4)
states: 20,047,309,185 (10)
abstracting: (1<=Section_27)
states: 9,511,333,155 (9)
abstracting: (Section_24<=1)
states: 23,973,456,915 (10)
-> the formula is TRUE

FORMULA CircularTrains-PT-048-CTLCardinality-11 TRUE TECHNIQUES SEQUENTIAL_PROCESSING DECISION_DIAGRAMS UNFOLDING_TO_PT

MC time: 0m 8.024sec

checking: A [[EG [~ [[AF [1<=F20] | E [F48<=F46 U Section_37<=1]]]] | 1<=F5] U ~ [EF [A [[[Section_11<=1 | 1<=F5] | EG [1<=F47]] U AG [F42<=1]]]]]
normalized: [~ [EG [E [true U [~ [EG [E [true U ~ [F42<=1]]]] & ~ [E [E [true U ~ [F42<=1]] U [~ [[EG [1<=F47] | [Section_11<=1 | 1<=F5]]] & E [true U ~ [F42<=1]]]]]]]]] & ~ [E [E [true U [~ [EG [E [true U ~ [F42<=1]]]] & ~ [E [E [true U ~ [F42<=1]] U [~ [[EG [1<=F47] | [Section_11<=1 | 1<=F5]]] & E [true U ~ [F42<=1]]]]]]] U [~ [[1<=F5 | EG [~ [[E [F48<=F46 U Section_37<=1] | ~ [EG [~ [1<=F20]]]]]]]] & E [true U [~ [EG [E [true U ~ [F42<=1]]]] & ~ [E [E [true U ~ [F42<=1]] U [~ [[EG [1<=F47] | [Section_11<=1 | 1<=F5]]] & E [true U ~ [F42<=1]]]]]]]]]]]

abstracting: (F42<=1)
states: 23,973,456,915 (10)
abstracting: (1<=F5)
states: 20,351,345,355 (10)
abstracting: (Section_11<=1)
states: 23,973,456,915 (10)
abstracting: (1<=F47)
states: 20,351,345,355 (10)
.
EG iterations: 1
abstracting: (F42<=1)
states: 23,973,456,915 (10)
abstracting: (F42<=1)
states: 23,973,456,915 (10)
.
EG iterations: 1
abstracting: (1<=F20)
states: 20,351,345,355 (10)
..................................................................................................................................................................................................................................................................................................................................................
EG iterations: 338
abstracting: (Section_37<=1)
states: 23,973,456,915 (10)
abstracting: (F48<=F46)
states: 18,084,235,320 (10)
.
EG iterations: 1
abstracting: (1<=F5)
states: 20,351,345,355 (10)
abstracting: (F42<=1)
states: 23,973,456,915 (10)
abstracting: (1<=F5)
states: 20,351,345,355 (10)
abstracting: (Section_11<=1)
states: 23,973,456,915 (10)
abstracting: (1<=F47)
states: 20,351,345,355 (10)
.
EG iterations: 1
abstracting: (F42<=1)
states: 23,973,456,915 (10)
abstracting: (F42<=1)
states: 23,973,456,915 (10)
.
EG iterations: 1
abstracting: (F42<=1)
states: 23,973,456,915 (10)
abstracting: (1<=F5)
states: 20,351,345,355 (10)
abstracting: (Section_11<=1)
states: 23,973,456,915 (10)
abstracting: (1<=F47)
states: 20,351,345,355 (10)
.
EG iterations: 1
abstracting: (F42<=1)
states: 23,973,456,915 (10)
abstracting: (F42<=1)
states: 23,973,456,915 (10)
.
EG iterations: 1

EG iterations: 0
-> the formula is FALSE

FORMULA CircularTrains-PT-048-CTLCardinality-12 FALSE TECHNIQUES SEQUENTIAL_PROCESSING DECISION_DIAGRAMS UNFOLDING_TO_PT

MC time: 0m 7.704sec

checking: [EX [[[AG [[[1<=F41 & Section_10<=0] | AG [F44<=1]]] | [AF [[1<=Section_26 & 1<=F14]] & AG [AF [1<=F22]]]] | ~ [EF [1<=Section_4]]]] | E [~ [F21<=F15] U ~ [Section_14<=Section_34]]]
normalized: [E [~ [F21<=F15] U ~ [Section_14<=Section_34]] | EX [[~ [E [true U 1<=Section_4]] | [[~ [E [true U EG [~ [1<=F22]]]] & ~ [EG [~ [[1<=Section_26 & 1<=F14]]]]] | ~ [E [true U ~ [[~ [E [true U ~ [F44<=1]]] | [1<=F41 & Section_10<=0]]]]]]]]]

abstracting: (Section_10<=0)
states: 19,022,666,310 (10)
abstracting: (1<=F41)
states: 20,351,345,355 (10)
abstracting: (F44<=1)
states: 15,400,554,750 (10)
abstracting: (1<=F14)
states: 20,351,345,355 (10)
abstracting: (1<=Section_26)
states: 9,511,333,155 (9)
.
EG iterations: 1
abstracting: (1<=F22)
states: 9,511,333,155 (9)
...........................................................................................................................................................................................................................................................................................................................................................................
EG iterations: 363
abstracting: (1<=Section_4)
states: 4,950,790,605 (9)
.abstracting: (Section_14<=Section_34)
states: 16,425,197,625 (10)
abstracting: (F21<=F15)
states: 18,084,235,320 (10)
-> the formula is FALSE

FORMULA CircularTrains-PT-048-CTLCardinality-02 FALSE TECHNIQUES SEQUENTIAL_PROCESSING DECISION_DIAGRAMS UNFOLDING_TO_PT

MC time: 0m 9.044sec

checking: ~ [EF [[[A [[E [F22<=0 U 1<=F34] | EG [F37<=Section_23]] U ~ [[F16<=1 | F12<=0]]] | AX [Section_23<=F11]] & [E [EF [F42<=0] U Section_19<=1] & AG [~ [EG [F45<=0]]]]]]]
normalized: ~ [E [true U [[~ [E [true U EG [F45<=0]]] & E [E [true U F42<=0] U Section_19<=1]] & [~ [EX [~ [Section_23<=F11]]] | [~ [EG [[F16<=1 | F12<=0]]] & ~ [E [[F16<=1 | F12<=0] U [~ [[EG [F37<=Section_23] | E [F22<=0 U 1<=F34]]] & [F16<=1 | F12<=0]]]]]]]]]

abstracting: (F12<=0)
states: 14,462,123,760 (10)
abstracting: (F16<=1)
states: 23,973,456,915 (10)
abstracting: (1<=F34)
states: 9,511,333,155 (9)
abstracting: (F22<=0)
states: 14,462,123,760 (10)
abstracting: (F37<=Section_23)
states: 18,388,271,490 (10)
.........................................................................................................................................
EG iterations: 137
abstracting: (F12<=0)
states: 14,462,123,760 (10)
abstracting: (F16<=1)
states: 23,973,456,915 (10)
abstracting: (F12<=0)
states: 14,462,123,760 (10)
abstracting: (F16<=1)
states: 23,973,456,915 (10)

EG iterations: 0
abstracting: (Section_23<=F11)
states: 22,653,409,365 (10)
.abstracting: (Section_19<=1)
states: 23,973,456,915 (10)
abstracting: (F42<=0)
states: 14,462,123,760 (10)
abstracting: (F45<=0)
states: 14,462,123,760 (10)
...........................................................................................................................................................................................................................................................................................................................................................................
EG iterations: 363
-> the formula is FALSE

FORMULA CircularTrains-PT-048-CTLCardinality-14 FALSE TECHNIQUES SEQUENTIAL_PROCESSING DECISION_DIAGRAMS UNFOLDING_TO_PT

MC time: 0m 4.182sec

checking: ~ [AX [[AF [[[[Section_21<=F15 | 1<=F9] | 1<=Section_2] | AG [Section_8<=F14]]] | ~ [[~ [A [1<=F1 U Section_8<=Section_23]] | [[EF [1<=F30] & 1<=F13] | ~ [Section_11<=Section_3]]]]]]]
normalized: EX [~ [[~ [[[~ [Section_11<=Section_3] | [1<=F13 & E [true U 1<=F30]]] | ~ [[~ [EG [~ [Section_8<=Section_23]]] & ~ [E [~ [Section_8<=Section_23] U [~ [1<=F1] & ~ [Section_8<=Section_23]]]]]]]] | ~ [EG [~ [[~ [E [true U ~ [Section_8<=F14]]] | [1<=Section_2 | [Section_21<=F15 | 1<=F9]]]]]]]]]

abstracting: (1<=F9)
states: 9,511,333,155 (9)
abstracting: (Section_21<=F15)
states: 18,388,271,490 (10)
abstracting: (1<=Section_2)
states: 9,511,333,155 (9)
abstracting: (Section_8<=F14)
states: 22,653,409,365 (10)
................
before gc: list nodes free: 1524444

after gc: idd nodes used:86001, unused:63913999; list nodes free:301586194
..........................................................................................................................
EG iterations: 138
abstracting: (Section_8<=Section_23)
states: 18,084,235,320 (10)
abstracting: (1<=F1)
states: 9,511,333,155 (9)
abstracting: (Section_8<=Section_23)
states: 18,084,235,320 (10)
abstracting: (Section_8<=Section_23)
states: 18,084,235,320 (10)
......................................................................................................................................................................................................
EG iterations: 198
abstracting: (1<=F30)
states: 9,511,333,155 (9)
abstracting: (1<=F13)
states: 9,511,333,155 (9)
abstracting: (Section_11<=Section_3)
states: 18,084,235,320 (10)
.-> the formula is FALSE

FORMULA CircularTrains-PT-048-CTLCardinality-09 FALSE TECHNIQUES SEQUENTIAL_PROCESSING DECISION_DIAGRAMS UNFOLDING_TO_PT

MC time: 0m 9.848sec

checking: [EG [EX [EF [AF [Section_9<=0]]]] | EG [[~ [[~ [A [Section_41<=Section_33 U 1<=F48]] | [F22<=F8 & [AX [Section_13<=F32] & ~ [Section_46<=Section_10]]]]] | A [EF [EF [Section_27<=Section_33]] U E [F20<=1 U [Section_45<=Section_9 & Section_13<=1]]]]]]
normalized: [EG [[[~ [EG [~ [E [F20<=1 U [Section_45<=Section_9 & Section_13<=1]]]]] & ~ [E [~ [E [F20<=1 U [Section_45<=Section_9 & Section_13<=1]]] U [~ [E [true U E [true U Section_27<=Section_33]]] & ~ [E [F20<=1 U [Section_45<=Section_9 & Section_13<=1]]]]]]] | ~ [[[F22<=F8 & [~ [Section_46<=Section_10] & ~ [EX [~ [Section_13<=F32]]]]] | ~ [[~ [EG [~ [1<=F48]]] & ~ [E [~ [1<=F48] U [~ [Section_41<=Section_33] & ~ [1<=F48]]]]]]]]]] | EG [EX [E [true U ~ [EG [~ [Section_9<=0]]]]]]]

abstracting: (Section_9<=0)
states: 14,462,123,760 (10)
..........................................................................................................................................................................................................................................................................................................................................................................
EG iterations: 362
.
EG iterations: 0
abstracting: (1<=F48)
states: 9,511,333,155 (9)
abstracting: (Section_41<=Section_33)
states: 18,084,235,320 (10)
abstracting: (1<=F48)
states: 9,511,333,155 (9)
abstracting: (1<=F48)
states: 9,511,333,155 (9)
...........................................................................................................................................................................................................................................................................................................................................................................
EG iterations: 363
abstracting: (Section_13<=F32)
states: 23,228,445,840 (10)
.abstracting: (Section_46<=Section_10)
states: 20,047,309,185 (10)
abstracting: (F22<=F8)
states: 22,416,403,980 (10)
abstracting: (Section_13<=1)
states: 23,973,456,915 (10)
abstracting: (Section_45<=Section_9)
states: 18,084,235,320 (10)
abstracting: (F20<=1)
states: 15,400,554,750 (10)
abstracting: (Section_27<=Section_33)
states: 18,084,235,320 (10)
abstracting: (Section_13<=1)
states: 23,973,456,915 (10)
abstracting: (Section_45<=Section_9)
states: 18,084,235,320 (10)
abstracting: (F20<=1)
states: 15,400,554,750 (10)
abstracting: (Section_13<=1)
states: 23,973,456,915 (10)
abstracting: (Section_45<=Section_9)
states: 18,084,235,320 (10)
abstracting: (F20<=1)
states: 15,400,554,750 (10)
........................................................................................................................
EG iterations: 120

EG iterations: 0
-> the formula is TRUE

FORMULA CircularTrains-PT-048-CTLCardinality-03 TRUE TECHNIQUES SEQUENTIAL_PROCESSING DECISION_DIAGRAMS UNFOLDING_TO_PT

MC time: 0m16.244sec

checking: EF [[[[E [E [1<=Section_27 U Section_28<=Section_11] U ~ [E [F30<=1 U 1<=Section_44]]] & [F24<=F19 | ~ [[F29<=F19 | F7<=Section_15]]]] & EX [[AX [1<=F26] | [A [F36<=F23 U 1<=Section_4] | EG [1<=F4]]]]] | [1<=F41 & AX [[[~ [1<=Section_33] | [1<=F9 | F36<=1]] & [~ [F20<=Section_32] & EG [Section_4<=0]]]]]]]
normalized: E [true U [[1<=F41 & ~ [EX [~ [[[EG [Section_4<=0] & ~ [F20<=Section_32]] & [[1<=F9 | F36<=1] | ~ [1<=Section_33]]]]]]] | [EX [[[EG [1<=F4] | [~ [EG [~ [1<=Section_4]]] & ~ [E [~ [1<=Section_4] U [~ [F36<=F23] & ~ [1<=Section_4]]]]]] | ~ [EX [~ [1<=F26]]]]] & [[F24<=F19 | ~ [[F29<=F19 | F7<=Section_15]]] & E [E [1<=Section_27 U Section_28<=Section_11] U ~ [E [F30<=1 U 1<=Section_44]]]]]]]

abstracting: (1<=Section_44)
states: 9,511,333,155 (9)
abstracting: (F30<=1)
states: 23,973,456,915 (10)
abstracting: (Section_28<=Section_11)
states: 20,985,740,175 (10)
abstracting: (1<=Section_27)
states: 9,511,333,155 (9)
abstracting: (F7<=Section_15)
states: 18,388,271,490 (10)
abstracting: (F29<=F19)
states: 8,360,301,150 (9)
abstracting: (F24<=F19)
states: 18,084,235,320 (10)
abstracting: (1<=F26)
states: 20,351,345,355 (10)
.abstracting: (1<=Section_4)
states: 4,950,790,605 (9)
abstracting: (F36<=F23)
states: 22,416,403,980 (10)
abstracting: (1<=Section_4)
states: 4,950,790,605 (9)
abstracting: (1<=Section_4)
states: 4,950,790,605 (9)
..................................................................................................................................................................................................................................................................................................................................................................................................
EG iterations: 386
abstracting: (1<=F4)
states: 9,511,333,155 (9)
..........................................................................................................................................................................................................................................................................................................................................................................
EG iterations: 362
.abstracting: (1<=Section_33)
states: 9,511,333,155 (9)
abstracting: (F36<=1)
states: 23,973,456,915 (10)
abstracting: (1<=F9)
states: 9,511,333,155 (9)
abstracting: (F20<=Section_32)
states: 8,226,239,580 (9)
abstracting: (Section_4<=0)
states: 19,022,666,310 (10)
..................................................................................................................................................................................................................................................................................................................................................................................................
EG iterations: 386
.abstracting: (1<=F41)
states: 20,351,345,355 (10)
-> the formula is FALSE

FORMULA CircularTrains-PT-048-CTLCardinality-00 FALSE TECHNIQUES SEQUENTIAL_PROCESSING DECISION_DIAGRAMS UNFOLDING_TO_PT

MC time: 0m12.466sec

checking: [[~ [[[[EX [[F42<=Section_23 & F1<=1]] | ~ [AF [1<=Section_9]]] & AF [~ [[Section_29<=Section_3 | F39<=0]]]] | ~ [A [Section_12<=Section_29 U AF [F10<=F12]]]]] | ~ [A [~ [[~ [[Section_11<=F36 & 1<=F39]] & EX [Section_24<=1]]] U [Section_41<=F19 | F32<=1]]]] | AX [[~ [[[[F32<=F25 & F19<=Section_3] & EF [F13<=Section_39]] | Section_18<=1]] | [AX [[[F25<=F14 | 1<=Section_4] | Section_45<=F19]] & [EG [~ [1<=Section_27]] | E [E [1<=F15 U 1<=Section_18] U EX [1<=F25]]]]]]]
normalized: [~ [EX [~ [[[[E [E [1<=F15 U 1<=Section_18] U EX [1<=F25]] | EG [~ [1<=Section_27]]] & ~ [EX [~ [[Section_45<=F19 | [F25<=F14 | 1<=Section_4]]]]]] | ~ [[Section_18<=1 | [E [true U F13<=Section_39] & [F32<=F25 & F19<=Section_3]]]]]]]] | [~ [[~ [EG [~ [[Section_41<=F19 | F32<=1]]]] & ~ [E [~ [[Section_41<=F19 | F32<=1]] U [[EX [Section_24<=1] & ~ [[Section_11<=F36 & 1<=F39]]] & ~ [[Section_41<=F19 | F32<=1]]]]]]] | ~ [[~ [[~ [EG [EG [~ [F10<=F12]]]] & ~ [E [EG [~ [F10<=F12]] U [~ [Section_12<=Section_29] & EG [~ [F10<=F12]]]]]]] | [~ [EG [[Section_29<=Section_3 | F39<=0]]] & [EG [~ [1<=Section_9]] | EX [[F42<=Section_23 & F1<=1]]]]]]]]

abstracting: (F1<=1)
states: 23,973,456,915 (10)
abstracting: (F42<=Section_23)
states: 18,388,271,490 (10)
.abstracting: (1<=Section_9)
states: 9,511,333,155 (9)
...........................................................................................................................................................................................................................................................................................................................................................................
EG iterations: 363
abstracting: (F39<=0)
states: 14,462,123,760 (10)
abstracting: (Section_29<=Section_3)
states: 18,084,235,320 (10)
....................................................................................................
EG iterations: 100
abstracting: (F10<=F12)
states: 18,084,235,320 (10)
....................................................................................................................................................................................................................................................................................................................................................
EG iterations: 340
abstracting: (Section_12<=Section_29)
states: 18,084,235,320 (10)
abstracting: (F10<=F12)
states: 18,084,235,320 (10)
....................................................................................................................................................................................................................................................................................................................................................
EG iterations: 340
abstracting: (F10<=F12)
states: 18,084,235,320 (10)
....................................................................................................................................................................................................................................................................................................................................................
EG iterations: 340
.
EG iterations: 1
abstracting: (F32<=1)
states: 15,400,554,750 (10)
abstracting: (Section_41<=F19)
states: 18,388,271,490 (10)
abstracting: (1<=F39)
states: 9,511,333,155 (9)
abstracting: (Section_11<=F36)
states: 18,388,271,490 (10)
abstracting: (Section_24<=1)
states: 23,973,456,915 (10)
.abstracting: (F32<=1)
states: 15,400,554,750 (10)
abstracting: (Section_41<=F19)
states: 18,388,271,490 (10)
abstracting: (F32<=1)
states: 15,400,554,750 (10)
abstracting: (Section_41<=F19)
states: 18,388,271,490 (10)
.........................................................................................................................................
EG iterations: 137
abstracting: (F19<=Section_3)
states: 18,388,271,490 (10)
abstracting: (F32<=F25)
states: 8,360,301,150 (9)
abstracting: (F13<=Section_39)
states: 18,388,271,490 (10)
abstracting: (Section_18<=1)
states: 23,973,456,915 (10)
abstracting: (1<=Section_4)
states: 4,950,790,605 (9)
abstracting: (F25<=F14)
states: 22,416,403,980 (10)
abstracting: (Section_45<=F19)
states: 18,388,271,490 (10)
.abstracting: (1<=Section_27)
states: 9,511,333,155 (9)
................................................................................................................................................................
before gc: list nodes free: 1712506

after gc: idd nodes used:193598, unused:63806402; list nodes free:301083411
...........................................................................................................................................................................................................
EG iterations: 363
abstracting: (1<=F25)
states: 9,511,333,155 (9)
.abstracting: (1<=Section_18)
states: 9,511,333,155 (9)
abstracting: (1<=F15)
states: 9,511,333,155 (9)
.-> the formula is TRUE

FORMULA CircularTrains-PT-048-CTLCardinality-15 TRUE TECHNIQUES SEQUENTIAL_PROCESSING DECISION_DIAGRAMS UNFOLDING_TO_PT

MC time: 0m37.062sec

checking: [~ [AX [[~ [EX [1<=F9]] & E [AX [Section_44<=Section_4] U AX [Section_26<=F6]]]]] & [[A [[A [~ [1<=Section_46] U ~ [Section_11<=F10]] & E [EG [Section_23<=1] U [F48<=0 & F44<=1]]] U [[1<=F37 | [AF [Section_3<=F19] & ~ [F3<=F25]]] | [~ [AX [Section_1<=0]] | A [1<=Section_33 U Section_21<=Section_48]]]] | [A [[~ [[F47<=0 & F37<=1]] & 1<=F1] U EG [[1<=Section_30 & Section_37<=F22]]] | [[~ [AF [1<=Section_19]] & ~ [EG [F42<=Section_26]]] | EF [[E [Section_44<=F21 U Section_7<=Section_43] | AG [1<=F4]]]]]] & ~ [AF [~ [Section_28<=0]]]]]
normalized: [[EG [Section_28<=0] & [[[E [true U [~ [E [true U ~ [1<=F4]]] | E [Section_44<=F21 U Section_7<=Section_43]]] | [~ [EG [F42<=Section_26]] & EG [~ [1<=Section_19]]]] | [~ [EG [~ [EG [[1<=Section_30 & Section_37<=F22]]]]] & ~ [E [~ [EG [[1<=Section_30 & Section_37<=F22]]] U [~ [[1<=F1 & ~ [[F47<=0 & F37<=1]]]] & ~ [EG [[1<=Section_30 & Section_37<=F22]]]]]]]] | [~ [EG [~ [[[[~ [EG [~ [Section_21<=Section_48]]] & ~ [E [~ [Section_21<=Section_48] U [~ [1<=Section_33] & ~ [Section_21<=Section_48]]]]] | EX [~ [Section_1<=0]]] | [1<=F37 | [~ [F3<=F25] & ~ [EG [~ [Section_3<=F19]]]]]]]]] & ~ [E [~ [[[[~ [EG [~ [Section_21<=Section_48]]] & ~ [E [~ [Section_21<=Section_48] U [~ [1<=Section_33] & ~ [Section_21<=Section_48]]]]] | EX [~ [Section_1<=0]]] | [1<=F37 | [~ [F3<=F25] & ~ [EG [~ [Section_3<=F19]]]]]]] U [~ [[E [EG [Section_23<=1] U [F48<=0 & F44<=1]] & [~ [EG [Section_11<=F10]] & ~ [E [Section_11<=F10 U [1<=Section_46 & Section_11<=F10]]]]]] & ~ [[[[~ [EG [~ [Section_21<=Section_48]]] & ~ [E [~ [Section_21<=Section_48] U [~ [1<=Section_33] & ~ [Section_21<=Section_48]]]]] | EX [~ [Section_1<=0]]] | [1<=F37 | [~ [F3<=F25] & ~ [EG [~ [Section_3<=F19]]]]]]]]]]]]] & EX [~ [[E [~ [EX [~ [Section_44<=Section_4]]] U ~ [EX [~ [Section_26<=F6]]]] & ~ [EX [1<=F9]]]]]]

abstracting: (1<=F9)
states: 9,511,333,155 (9)
.abstracting: (Section_26<=F6)
states: 18,388,271,490 (10)
.abstracting: (Section_44<=Section_4)
states: 16,425,197,625 (10)
..abstracting: (Section_3<=F19)
states: 18,388,271,490 (10)
.............................................................................................................................................................................................
EG iterations: 189
abstracting: (F3<=F25)
states: 18,084,235,320 (10)
abstracting: (1<=F37)
states: 9,511,333,155 (9)
abstracting: (Section_1<=0)
states: 19,022,666,310 (10)
.abstracting: (Section_21<=Section_48)
states: 18,084,235,320 (10)
abstracting: (1<=Section_33)
states: 9,511,333,155 (9)
abstracting: (Section_21<=Section_48)
states: 18,084,235,320 (10)
abstracting: (Section_21<=Section_48)
states: 18,084,235,320 (10)
..............................................................................................................................................................................
EG iterations: 174
abstracting: (Section_11<=F10)
states: 14,462,123,760 (10)
abstracting: (1<=Section_46)
states: 4,950,790,605 (9)
abstracting: (Section_11<=F10)
states: 14,462,123,760 (10)
abstracting: (Section_11<=F10)
states: 14,462,123,760 (10)
...........................................................................................................................................................................................................................................................................................................................................................................
EG iterations: 363
abstracting: (F44<=1)
states: 15,400,554,750 (10)
abstracting: (F48<=0)
states: 14,462,123,760 (10)
abstracting: (Section_23<=1)
states: 23,973,456,915 (10)

EG iterations: 0
abstracting: (Section_3<=F19)
states: 18,388,271,490 (10)
.............................................................................................................................................................................................
EG iterations: 189
abstracting: (F3<=F25)
states: 18,084,235,320 (10)
abstracting: (1<=F37)
states: 9,511,333,155 (9)
abstracting: (Section_1<=0)
states: 19,022,666,310 (10)
.abstracting: (Section_21<=Section_48)
states: 18,084,235,320 (10)
abstracting: (1<=Section_33)
states: 9,511,333,155 (9)
abstracting: (Section_21<=Section_48)
states: 18,084,235,320 (10)
abstracting: (Section_21<=Section_48)
states: 18,084,235,320 (10)
..............................................................................................................................................................................
EG iterations: 174
abstracting: (Section_3<=F19)
states: 18,388,271,490 (10)
.............................................................................................................................................................................................
EG iterations: 189
abstracting: (F3<=F25)
states: 18,084,235,320 (10)
abstracting: (1<=F37)
states: 9,511,333,155 (9)
abstracting: (Section_1<=0)
states: 19,022,666,310 (10)
.abstracting: (Section_21<=Section_48)
states: 18,084,235,320 (10)
abstracting: (1<=Section_33)
states: 9,511,333,155 (9)
abstracting: (Section_21<=Section_48)
states: 18,084,235,320 (10)
abstracting: (Section_21<=Section_48)
states: 18,084,235,320 (10)
..............................................................................................................................................................................
EG iterations: 174
.....................................................................................................................
EG iterations: 117
abstracting: (Section_37<=F22)
states: 20,985,740,175 (10)
abstracting: (1<=Section_30)
states: 9,511,333,155 (9)
..........................................................................................................................................................................................................................................................................................................................................................................
EG iterations: 362
abstracting: (F37<=1)
states: 23,973,456,915 (10)
abstracting: (F47<=0)
states: 3,622,111,560 (9)
abstracting: (1<=F1)
states: 9,511,333,155 (9)
abstracting: (Section_37<=F22)
states: 20,985,740,175 (10)
abstracting: (1<=Section_30)
states: 9,511,333,155 (9)
..........................................................................................................................................................................................................................................................................................................................................................................
EG iterations: 362
abstracting: (Section_37<=F22)
states: 20,985,740,175 (10)
abstracting: (1<=Section_30)
states: 9,511,333,155 (9)
..........................................................................................................................................................................................................................................................................................................................................................................
EG iterations: 362

EG iterations: 0
abstracting: (1<=Section_19)
states: 4,950,790,605 (9)
..................................................................................................................................................................................................................................................................................................................................................................................................
EG iterations: 386
abstracting: (F42<=Section_26)
states: 18,388,271,490 (10)
..................................................................................................................
EG iterations: 114
abstracting: (Section_7<=Section_43)
states: 20,047,309,185 (10)
abstracting: (Section_44<=F21)
states: 18,388,271,490 (10)
abstracting: (1<=F4)
states: 9,511,333,155 (9)
abstracting: (Section_28<=0)
states: 19,022,666,310 (10)
..................................................................................................................................................................................................................................................................................................................................................................................................
EG iterations: 386
-> the formula is FALSE

FORMULA CircularTrains-PT-048-CTLCardinality-10 FALSE TECHNIQUES SEQUENTIAL_PROCESSING DECISION_DIAGRAMS UNFOLDING_TO_PT

MC time: 0m50.528sec

totally nodes used: 183267148 (1.8e+08)
number of garbage collections: 2
fire ops cache: hits/miss/sum: 73813402 260054818 333868220
used/not used/entry size/cache size: 57366024 9742840 16 1024MB
basic ops cache: hits/miss/sum: 10188496 26275680 36464176
used/not used/entry size/cache size: 10622577 6154639 12 192MB
unary ops cache: hits/miss/sum: 0 0 0
used/not used/entry size/cache size: 0 16777216 8 128MB
abstract ops cache: hits/miss/sum: 0 0 0
used/not used/entry size/cache size: 0 16777216 12 192MB
state nr cache: hits/miss/sum: 58741 183202 241943
used/not used/entry size/cache size: 41764 8346844 32 256MB
max state cache: hits/miss/sum: 0 0 0
used/not used/entry size/cache size: 0 8388608 32 256MB
uniqueHash elements/entry size/size: 67108864 4 256MB
0 30250627
1 23388704
2 9721513
3 2875993
4 675452
5 136870
6 27933
7 8688
8 3811
9 2129
>= 10 17144

Total processing time: 3m19.402sec


BK_STOP 1678270403701

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

check for maximal unmarked siphon
ok
check for constant places
ok
check if there are places and transitions
ok
check if there are transitions without pre-places
ok
check if at least one transition is enabled in m0
ok
check if there are transitions that can never fire
ok


initing FirstDep: 0m 0.000sec


iterations count:1888 (39), effective:384 (8)

initing FirstDep: 0m 0.000sec


iterations count:114 (2), effective:22 (0)

iterations count:48 (1), effective:0 (0)

iterations count:367 (7), effective:49 (1)

iterations count:120 (2), effective:24 (0)

iterations count:51 (1), effective:1 (0)

iterations count:203 (4), effective:23 (0)

iterations count:48 (1), effective:0 (0)

iterations count:48 (1), effective:0 (0)

iterations count:48 (1), effective:0 (0)

iterations count:367 (7), effective:49 (1)

iterations count:48 (1), effective:0 (0)

iterations count:361 (7), effective:47 (0)

iterations count:234 (4), effective:63 (1)

iterations count:276 (5), effective:47 (0)

iterations count:206 (4), effective:24 (0)

iterations count:203 (4), effective:23 (0)

iterations count:347 (7), effective:71 (1)

iterations count:120 (2), effective:24 (0)

iterations count:48 (1), effective:0 (0)

iterations count:111 (2), effective:21 (0)

iterations count:525 (10), effective:73 (1)

iterations count:117 (2), effective:22 (0)

iterations count:206 (4), effective:24 (0)

iterations count:48 (1), effective:0 (0)

iterations count:153 (3), effective:35 (0)

iterations count:170 (3), effective:12 (0)

iterations count:66 (1), effective:6 (0)

iterations count:48 (1), effective:0 (0)

iterations count:170 (3), effective:12 (0)

iterations count:170 (3), effective:12 (0)

iterations count:120 (2), effective:24 (0)

iterations count:48 (1), effective:0 (0)

iterations count:293 (6), effective:52 (1)

iterations count:90 (1), effective:15 (0)

iterations count:114 (2), effective:23 (0)

iterations count:54 (1), effective:2 (0)

iterations count:118 (2), effective:23 (0)

iterations count:177 (3), effective:43 (0)

iterations count:87 (1), effective:13 (0)

iterations count:230 (4), effective:32 (0)

iterations count:190 (3), effective:47 (0)

iterations count:87 (1), effective:13 (0)

iterations count:75 (1), effective:9 (0)

iterations count:87 (1), effective:13 (0)

iterations count:184 (3), effective:45 (0)

iterations count:51 (1), effective:1 (0)

iterations count:204 (4), effective:23 (0)

iterations count:51 (1), effective:1 (0)

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="CircularTrains-PT-048"
export BK_EXAMINATION="CTLCardinality"
export BK_TOOL="marcie"
export BK_RESULT_DIR="/tmp/BK_RESULTS/OUTPUTS"
export BK_TIME_CONFINEMENT="3600"
export BK_MEMORY_CONFINEMENT="16384"
export BK_BIN_PATH="/home/mcc/BenchKit/bin/"

# this is specific to your benchmark or test

export BIN_DIR="$HOME/BenchKit/bin"

# remove the execution directoty if it exists (to avoid increse of .vmdk images)
if [ -d execution ] ; then
rm -rf execution
fi

# this is for BenchKit: explicit launching of the test
echo "====================================================================="
echo " Generated by BenchKit 2-5348"
echo " Executing tool marcie"
echo " Input is CircularTrains-PT-048, examination is CTLCardinality"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 1"
echo " Run identifier is r065-smll-167814393000161"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/CircularTrains-PT-048.tgz
mv CircularTrains-PT-048 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 ;