Execution Chart

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

Trace from the execution

Waiting for the VM to be ready (probing ssh)
...............
=====================================================================
Generated by BenchKit 2-3253
Executing tool tapaal
Input is S_SmallOperatingSystem-PT-MT8192DC4096, examination is CTLCardinality
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r159-ebro-149443465400057
=====================================================================

--------------------
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 SmallOperatingSystem-PT-MT8192DC4096-CTLCardinality-0
FORMULA_NAME SmallOperatingSystem-PT-MT8192DC4096-CTLCardinality-1
FORMULA_NAME SmallOperatingSystem-PT-MT8192DC4096-CTLCardinality-10
FORMULA_NAME SmallOperatingSystem-PT-MT8192DC4096-CTLCardinality-11
FORMULA_NAME SmallOperatingSystem-PT-MT8192DC4096-CTLCardinality-12
FORMULA_NAME SmallOperatingSystem-PT-MT8192DC4096-CTLCardinality-13
FORMULA_NAME SmallOperatingSystem-PT-MT8192DC4096-CTLCardinality-14
FORMULA_NAME SmallOperatingSystem-PT-MT8192DC4096-CTLCardinality-15
FORMULA_NAME SmallOperatingSystem-PT-MT8192DC4096-CTLCardinality-2
FORMULA_NAME SmallOperatingSystem-PT-MT8192DC4096-CTLCardinality-3
FORMULA_NAME SmallOperatingSystem-PT-MT8192DC4096-CTLCardinality-4
FORMULA_NAME SmallOperatingSystem-PT-MT8192DC4096-CTLCardinality-5
FORMULA_NAME SmallOperatingSystem-PT-MT8192DC4096-CTLCardinality-6
FORMULA_NAME SmallOperatingSystem-PT-MT8192DC4096-CTLCardinality-7
FORMULA_NAME SmallOperatingSystem-PT-MT8192DC4096-CTLCardinality-8
FORMULA_NAME SmallOperatingSystem-PT-MT8192DC4096-CTLCardinality-9

=== Now, execution of the tool begins

BK_START 1496247543951

---> tapaal --- TAPAAL
Total timeout: 3600

*************************************
* TAPAAL verifying CTLCardinality *
*************************************
---------------------------------------------------
Step 1: Parallel processing
---------------------------------------------------
Doing parallel verification of individual queries (16 in total)
Each query is verified by 2 parallel strategies for 60 seconds
------------------- QUERY 1 ----------------------
Solution found
perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
LANGUAGE = (unset),
LC_ALL = (unset),
LANG = "fr_FR.UTF-8"
are supported and installed on your system.
perl: warning: Falling back to the standard locale ("C").
perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
LANGUAGE = (unset),
LC_ALL = (unset),
LANG = "fr_FR.UTF-8"
are supported and installed on your system.
perl: warning: Falling back to the standard locale ("C").

Parameters: -s DFS -d 10 ./model.pnml ./CTLCardinality.xml -x 1

Parameters: -s DFS -q 0 -d 10 ./model.pnml ./CTLCardinality.xml -x 1

Search=DFS,Trace=DISABLED,State_Space_Exploration=DISABLED,Structural_Reduction=AGGRESSIVE,Struct_Red_Timout=10,Stubborn_Reduction=ENABLED,Query_Simplication=ENABLED,QSTimeout=30,Siphon_Trap=DISABLED,LPSolve_Timeout=10

Query before reduction: ((TaskReady <= TaskReady) and (AG ((3 <= TransferToDisk) or (TransferToDisk <= CPUUnit)) and (EF (1 <= TaskOnDisk) or (TaskReady <= ExecutingTask))))
Query after reduction: true
Query size reduced from 21 to 1 nodes (95.24 percent reduction).
Query reduction finished after 0.004530 seconds.


Query is satisfied.

Query solved by Query Simplification.

parallel: This job succeeded:
/home/mcc/BenchKit/start.sh 7250000 /home/mcc/BenchKit/bin/verifypn-linux64 -s\ DFS\ -d\ 10 ./model.pnml ./CTLCardinality.xml -x 1

FORMULA SmallOperatingSystem-PT-MT8192DC4096-CTLCardinality-0 TRUE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STRUCTURAL_REDUCTION STATE_COMPRESSION STUBBORN_SETS
------------------- QUERY 2 ----------------------
No solution found
perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
LANGUAGE = (unset),
LC_ALL = (unset),
LANG = "fr_FR.UTF-8"
are supported and installed on your system.
perl: warning: Falling back to the standard locale ("C").
perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
LANGUAGE = (unset),
LC_ALL = (unset),
LANG = "fr_FR.UTF-8"
are supported and installed on your system.
perl: warning: Falling back to the standard locale ("C").

Parameters: -s DFS -d 10 ./model.pnml ./CTLCardinality.xml -x 2

Parameters: -s DFS -q 0 -d 10 ./model.pnml ./CTLCardinality.xml -x 2


------------------- QUERY 3 ----------------------
No solution found
perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
LANGUAGE = (unset),
LC_ALL = (unset),
LANG = "fr_FR.UTF-8"
are supported and installed on your system.
perl: warning: Falling back to the standard locale ("C").
perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
LANGUAGE = (unset),
LC_ALL = (unset),
LANG = "fr_FR.UTF-8"
are supported and installed on your system.
perl: warning: Falling back to the standard locale ("C").

Parameters: -s DFS -d 10 ./model.pnml ./CTLCardinality.xml -x 3

Search=DFS,Trace=DISABLED,State_Space_Exploration=DISABLED,Structural_Reduction=AGGRESSIVE,Struct_Red_Timout=10,Stubborn_Reduction=ENABLED,Query_Simplication=ENABLED,QSTimeout=30,Siphon_Trap=DISABLED,LPSolve_Timeout=10

Query before reduction: EF ((not ((1 <= DiskControllerUnit) or (3 <= ExecutingTask))) or ((not (FreeMemSegment <= TaskSuspended)) and (not (1 <= DiskControllerUnit))))
Query after reduction: EF (((1 > DiskControllerUnit) and (3 > ExecutingTask)) or ((FreeMemSegment > TaskSuspended) and (1 > DiskControllerUnit)))
Query size reduced from 16 to 16 nodes (0.00 percent reduction).
Query reduction finished after 0.001676 seconds.
Size of net before structural reductions: 9 places, 8 transitions
Size of net after structural reductions: 8 places, 8 transitions
Structural reduction finished after 5.2e-05 seconds

Net reduction is enabled.
Removed transitions: 0
Removed places: 1
Applications of rule A: 0
Applications of rule B: 0
Applications of rule C: 1
Applications of rule D: 0
Applications of rule E: 0

Parameters: -s DFS -q 0 -d 10 ./model.pnml ./CTLCardinality.xml -x 3

Search=DFS,Trace=DISABLED,State_Space_Exploration=DISABLED,Structural_Reduction=AGGRESSIVE,Struct_Red_Timout=10,Stubborn_Reduction=ENABLED,Query_Simplication=DISABLED,Siphon_Trap=DISABLED,LPSolve_Timeout=10
Size of net before structural reductions: 9 places, 8 transitions
Size of net after structural reductions: 8 places, 8 transitions
Structural reduction finished after 5.7e-05 seconds

Net reduction is enabled.
Removed transitions: 0
Removed places: 1
Applications of rule A: 0
Applications of rule B: 0
Applications of rule C: 1
Applications of rule D: 0
Applications of rule E: 0


------------------- QUERY 4 ----------------------
No solution found
perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
LANGUAGE = (unset),
LC_ALL = (unset),
LANG = "fr_FR.UTF-8"
are supported and installed on your system.
perl: warning: Falling back to the standard locale ("C").
perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
LANGUAGE = (unset),
LC_ALL = (unset),
LANG = "fr_FR.UTF-8"
are supported and installed on your system.
perl: warning: Falling back to the standard locale ("C").

Parameters: -s DFS -d 10 ./model.pnml ./CTLCardinality.xml -x 4

Parameters: -s DFS -q 0 -d 10 ./model.pnml ./CTLCardinality.xml -x 4


------------------- QUERY 5 ----------------------
Solution found
perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
LANGUAGE = (unset),
LC_ALL = (unset),
LANG = "fr_FR.UTF-8"
are supported and installed on your system.
perl: warning: Falling back to the standard locale ("C").
perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
LANGUAGE = (unset),
LC_ALL = (unset),
LANG = "fr_FR.UTF-8"
are supported and installed on your system.
perl: warning: Falling back to the standard locale ("C").

Parameters: -s DFS -d 10 ./model.pnml ./CTLCardinality.xml -x 5

Search=DFS,Trace=DISABLED,State_Space_Exploration=DISABLED,Structural_Reduction=AGGRESSIVE,Struct_Red_Timout=10,Stubborn_Reduction=ENABLED,Query_Simplication=ENABLED,QSTimeout=30,Siphon_Trap=DISABLED,LPSolve_Timeout=10

Query before reduction: EF AG (not (3 <= TaskOnDisk))
Query after reduction: false
Query size reduced from 5 to 1 nodes (80.00 percent reduction).
Query reduction finished after 0.000435 seconds.


Query is NOT satisfied.

Query solved by Query Simplification.

parallel: This job succeeded:
/home/mcc/BenchKit/start.sh 7250000 /home/mcc/BenchKit/bin/verifypn-linux64 -s\ DFS\ -d\ 10 ./model.pnml ./CTLCardinality.xml -x 5

FORMULA SmallOperatingSystem-PT-MT8192DC4096-CTLCardinality-4 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STRUCTURAL_REDUCTION STATE_COMPRESSION STUBBORN_SETS
------------------- QUERY 6 ----------------------
No solution found
perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
LANGUAGE = (unset),
LC_ALL = (unset),
LANG = "fr_FR.UTF-8"
are supported and installed on your system.
perl: warning: Falling back to the standard locale ("C").
perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
LANGUAGE = (unset),
LC_ALL = (unset),
LANG = "fr_FR.UTF-8"
are supported and installed on your system.
perl: warning: Falling back to the standard locale ("C").

Parameters: -s DFS -d 10 ./model.pnml ./CTLCardinality.xml -x 6

Parameters: -s DFS -q 0 -d 10 ./model.pnml ./CTLCardinality.xml -x 6


------------------- QUERY 7 ----------------------
No solution found
perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
LANGUAGE = (unset),
LC_ALL = (unset),
LANG = "fr_FR.UTF-8"
are supported and installed on your system.
perl: warning: Falling back to the standard locale ("C").
perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
LANGUAGE = (unset),
LC_ALL = (unset),
LANG = "fr_FR.UTF-8"
are supported and installed on your system.
perl: warning: Falling back to the standard locale ("C").

Parameters: -s DFS -d 10 ./model.pnml ./CTLCardinality.xml -x 7

Parameters: -s DFS -q 0 -d 10 ./model.pnml ./CTLCardinality.xml -x 7


------------------- QUERY 8 ----------------------
No solution found
perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
LANGUAGE = (unset),
LC_ALL = (unset),
LANG = "fr_FR.UTF-8"
are supported and installed on your system.
perl: warning: Falling back to the standard locale ("C").
perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
LANGUAGE = (unset),
LC_ALL = (unset),
LANG = "fr_FR.UTF-8"
are supported and installed on your system.
perl: warning: Falling back to the standard locale ("C").

Parameters: -s DFS -d 10 ./model.pnml ./CTLCardinality.xml -x 8

Parameters: -s DFS -q 0 -d 10 ./model.pnml ./CTLCardinality.xml -x 8


------------------- QUERY 9 ----------------------
No solution found
perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
LANGUAGE = (unset),
LC_ALL = (unset),
LANG = "fr_FR.UTF-8"
are supported and installed on your system.
perl: warning: Falling back to the standard locale ("C").
perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
LANGUAGE = (unset),
LC_ALL = (unset),
LANG = "fr_FR.UTF-8"
are supported and installed on your system.
perl: warning: Falling back to the standard locale ("C").

Parameters: -s DFS -d 10 ./model.pnml ./CTLCardinality.xml -x 9

Parameters: -s DFS -q 0 -d 10 ./model.pnml ./CTLCardinality.xml -x 9


------------------- QUERY 10 ----------------------
No solution found
perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
LANGUAGE = (unset),
LC_ALL = (unset),
LANG = "fr_FR.UTF-8"
are supported and installed on your system.
perl: warning: Falling back to the standard locale ("C").
perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
LANGUAGE = (unset),
LC_ALL = (unset),
LANG = "fr_FR.UTF-8"
are supported and installed on your system.
perl: warning: Falling back to the standard locale ("C").

Parameters: -s DFS -d 10 ./model.pnml ./CTLCardinality.xml -x 10

Parameters: -s DFS -q 0 -d 10 ./model.pnml ./CTLCardinality.xml -x 10


------------------- QUERY 11 ----------------------
No solution found
perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
LANGUAGE = (unset),
LC_ALL = (unset),
LANG = "fr_FR.UTF-8"
are supported and installed on your system.
perl: warning: Falling back to the standard locale ("C").
perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
LANGUAGE = (unset),
LC_ALL = (unset),
LANG = "fr_FR.UTF-8"
are supported and installed on your system.
perl: warning: Falling back to the standard locale ("C").

Parameters: -s DFS -d 10 ./model.pnml ./CTLCardinality.xml -x 11

Search=DFS,Trace=DISABLED,State_Space_Exploration=DISABLED,Structural_Reduction=AGGRESSIVE,Struct_Red_Timout=10,Stubborn_Reduction=ENABLED,Query_Simplication=ENABLED,QSTimeout=30,Siphon_Trap=DISABLED,LPSolve_Timeout=10

Query before reduction: EF (TaskOnDisk <= TaskSuspended)
Query after reduction: EF (TaskOnDisk <= TaskSuspended)
Query size reduced from 4 to 4 nodes (0.00 percent reduction).
Query reduction finished after 0.000523 seconds.
Size of net before structural reductions: 9 places, 8 transitions
Size of net after structural reductions: 9 places, 8 transitions
Structural reduction finished after 4.6e-05 seconds

Net reduction is enabled.
Removed transitions: 0
Removed places: 0
Applications of rule A: 0
Applications of rule B: 0
Applications of rule C: 0
Applications of rule D: 0
Applications of rule E: 0

Parameters: -s DFS -q 0 -d 10 ./model.pnml ./CTLCardinality.xml -x 11

Search=DFS,Trace=DISABLED,State_Space_Exploration=DISABLED,Structural_Reduction=AGGRESSIVE,Struct_Red_Timout=10,Stubborn_Reduction=ENABLED,Query_Simplication=DISABLED,Siphon_Trap=DISABLED,LPSolve_Timeout=10
Size of net before structural reductions: 9 places, 8 transitions
Size of net after structural reductions: 9 places, 8 transitions
Structural reduction finished after 4.4e-05 seconds

Net reduction is enabled.
Removed transitions: 0
Removed places: 0
Applications of rule A: 0
Applications of rule B: 0
Applications of rule C: 0
Applications of rule D: 0
Applications of rule E: 0


------------------- QUERY 12 ----------------------
No solution found
perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
LANGUAGE = (unset),
LC_ALL = (unset),
LANG = "fr_FR.UTF-8"
are supported and installed on your system.
perl: warning: Falling back to the standard locale ("C").
perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
LANGUAGE = (unset),
LC_ALL = (unset),
LANG = "fr_FR.UTF-8"
are supported and installed on your system.
perl: warning: Falling back to the standard locale ("C").

Parameters: -s DFS -d 10 ./model.pnml ./CTLCardinality.xml -x 12

Parameters: -s DFS -q 0 -d 10 ./model.pnml ./CTLCardinality.xml -x 12


------------------- QUERY 13 ----------------------
Solution found
perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
LANGUAGE = (unset),
LC_ALL = (unset),
LANG = "fr_FR.UTF-8"
are supported and installed on your system.
perl: warning: Falling back to the standard locale ("C").
perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
LANGUAGE = (unset),
LC_ALL = (unset),
LANG = "fr_FR.UTF-8"
are supported and installed on your system.
perl: warning: Falling back to the standard locale ("C").

Parameters: -s DFS -d 10 ./model.pnml ./CTLCardinality.xml -x 13

Search=DFS,Trace=DISABLED,State_Space_Exploration=DISABLED,Structural_Reduction=AGGRESSIVE,Struct_Red_Timout=10,Stubborn_Reduction=ENABLED,Query_Simplication=ENABLED,QSTimeout=30,Siphon_Trap=DISABLED,LPSolve_Timeout=10

Query before reduction: AG (TransferToDisk <= DiskControllerUnit)
Query after reduction: AG (TransferToDisk <= DiskControllerUnit)
Query size reduced from 4 to 4 nodes (0.00 percent reduction).
Query reduction finished after 0.000738 seconds.
Size of net before structural reductions: 9 places, 8 transitions
Size of net after structural reductions: 8 places, 8 transitions
Structural reduction finished after 7.5e-05 seconds

Net reduction is enabled.
Removed transitions: 0
Removed places: 1
Applications of rule A: 0
Applications of rule B: 0
Applications of rule C: 1
Applications of rule D: 0
Applications of rule E: 0

Parameters: -s DFS -q 0 -d 10 ./model.pnml ./CTLCardinality.xml -x 13

Search=DFS,Trace=DISABLED,State_Space_Exploration=DISABLED,Structural_Reduction=AGGRESSIVE,Struct_Red_Timout=10,Stubborn_Reduction=ENABLED,Query_Simplication=DISABLED,Siphon_Trap=DISABLED,LPSolve_Timeout=10
Size of net before structural reductions: 9 places, 8 transitions
Size of net after structural reductions: 8 places, 8 transitions
Structural reduction finished after 6.6e-05 seconds

Net reduction is enabled.
Removed transitions: 0
Removed places: 1
Applications of rule A: 0
Applications of rule B: 0
Applications of rule C: 1
Applications of rule D: 0
Applications of rule E: 0


Query is NOT satisfied.

STATS:
discovered states: 81864
explored states: 65479
expanded states: 24565
max tokens: 20480

parallel: This job succeeded:
/home/mcc/BenchKit/start.sh 14500000 /home/mcc/BenchKit/bin/verifypn-linux64 -s\ DFS\ -q\ 0\ -d\ 10 ./model.pnml ./CTLCardinality.xml -x 13

FORMULA SmallOperatingSystem-PT-MT8192DC4096-CTLCardinality-12 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STRUCTURAL_REDUCTION STATE_COMPRESSION STUBBORN_SETS
------------------- QUERY 14 ----------------------
Solution found
perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
LANGUAGE = (unset),
LC_ALL = (unset),
LANG = "fr_FR.UTF-8"
are supported and installed on your system.
perl: warning: Falling back to the standard locale ("C").
perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
LANGUAGE = (unset),
LC_ALL = (unset),
LANG = "fr_FR.UTF-8"
are supported and installed on your system.
perl: warning: Falling back to the standard locale ("C").

Parameters: -s DFS -d 10 ./model.pnml ./CTLCardinality.xml -x 14

Parameters: -s DFS -q 0 -d 10 ./model.pnml ./CTLCardinality.xml -x 14

Search=DFS,Trace=DISABLED,State_Space_Exploration=DISABLED,Structural_Reduction=AGGRESSIVE,Struct_Red_Timout=10,Stubborn_Reduction=ENABLED,Query_Simplication=ENABLED,QSTimeout=30,Siphon_Trap=DISABLED,LPSolve_Timeout=10

Query before reduction: A ((not ((TaskOnDisk <= TransferToDisk) or (2 <= TaskSuspended))) U EG (TaskReady <= TransferToDisk))
Query after reduction: A (((TaskOnDisk > TransferToDisk) and (2 > TaskSuspended)) U EG (TaskReady <= TransferToDisk))
Query size reduced from 12 to 12 nodes (0.00 percent reduction).
Query reduction finished after 0.001349 seconds.


Query is NOT satisfied.

STATS:
Time (seconds): 0.02254
Configurations: 8202
Markings: 8194
Edges: 8202
Processed Edges: 16394
Processed N. Edges: 7
Explored Configs: 8199
Query: A((tokens-count(TaskOnDisk) gr tokens-count(TransferToDisk) & integer-constant(2) gr tokens-count(TaskSuspended))) U (!(AF!(tokens-count(TaskReady) le tokens-count(TransferToDisk))))

parallel: This job succeeded:
/home/mcc/BenchKit/start.sh 7250000 /home/mcc/BenchKit/bin/verifypn-linux64 -s\ DFS\ -d\ 10 ./model.pnml ./CTLCardinality.xml -x 14

FORMULA SmallOperatingSystem-PT-MT8192DC4096-CTLCardinality-13 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STRUCTURAL_REDUCTION STATE_COMPRESSION STUBBORN_SETS
------------------- QUERY 15 ----------------------
No solution found
perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
LANGUAGE = (unset),
LC_ALL = (unset),
LANG = "fr_FR.UTF-8"
are supported and installed on your system.
perl: warning: Falling back to the standard locale ("C").
perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
LANGUAGE = (unset),
LC_ALL = (unset),
LANG = "fr_FR.UTF-8"
are supported and installed on your system.
perl: warning: Falling back to the standard locale ("C").

Parameters: -s DFS -d 10 ./model.pnml ./CTLCardinality.xml -x 15

Parameters: -s DFS -q 0 -d 10 ./model.pnml ./CTLCardinality.xml -x 15


------------------- QUERY 16 ----------------------
No solution found
perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
LANGUAGE = (unset),
LC_ALL = (unset),
LANG = "fr_FR.UTF-8"
are supported and installed on your system.
perl: warning: Falling back to the standard locale ("C").
perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
LANGUAGE = (unset),
LC_ALL = (unset),
LANG = "fr_FR.UTF-8"
are supported and installed on your system.
perl: warning: Falling back to the standard locale ("C").

Parameters: -s DFS -d 10 ./model.pnml ./CTLCardinality.xml -x 16

Parameters: -s DFS -q 0 -d 10 ./model.pnml ./CTLCardinality.xml -x 16


---------------------------------------------------
Step 2: Sequential processing
---------------------------------------------------
Remaining queries are verified sequentially.
Each query is verified for a dynamic timeout (at least 480 seconds)
------------------- QUERY 2 ----------------------
Running query 2 for 482 seconds. Remaining: 12 queries and 2843 seconds

Parameters: -s DFS -d 100 -q 100 ./model.pnml ./CTLCardinality.xml -x 2

Search=DFS,Trace=DISABLED,State_Space_Exploration=DISABLED,Structural_Reduction=AGGRESSIVE,Struct_Red_Timout=100,Stubborn_Reduction=ENABLED,Query_Simplication=ENABLED,QSTimeout=100,Siphon_Trap=DISABLED,LPSolve_Timeout=10

Query before reduction: AX (AG (TransferToDisk <= FreeMemSegment) or (not (1 <= DiskControllerUnit)))
Query after reduction: AX (AG (TransferToDisk <= FreeMemSegment) or (1 > DiskControllerUnit))
Query size reduced from 9 to 9 nodes (0.00 percent reduction).
Query reduction finished after 0.001486 seconds.
No solution found
------------------- QUERY 3 ----------------------
Running query 3 for 482 seconds. Remaining: 11 queries and 2708 seconds

Parameters: -s DFS -d 100 -q 100 ./model.pnml ./CTLCardinality.xml -x 3

Search=DFS,Trace=DISABLED,State_Space_Exploration=DISABLED,Structural_Reduction=AGGRESSIVE,Struct_Red_Timout=100,Stubborn_Reduction=ENABLED,Query_Simplication=ENABLED,QSTimeout=100,Siphon_Trap=DISABLED,LPSolve_Timeout=10

Query before reduction: EF ((not ((1 <= DiskControllerUnit) or (3 <= ExecutingTask))) or ((not (FreeMemSegment <= TaskSuspended)) and (not (1 <= DiskControllerUnit))))
Query after reduction: EF (((1 > DiskControllerUnit) and (3 > ExecutingTask)) or ((FreeMemSegment > TaskSuspended) and (1 > DiskControllerUnit)))
Query size reduced from 16 to 16 nodes (0.00 percent reduction).
Query reduction finished after 0.003272 seconds.
Size of net before structural reductions: 9 places, 8 transitions
Size of net after structural reductions: 8 places, 8 transitions
Structural reduction finished after 0.000355 seconds

Net reduction is enabled.
Removed transitions: 0
Removed places: 1
Applications of rule A: 0
Applications of rule B: 0
Applications of rule C: 1
Applications of rule D: 0
Applications of rule E: 0
No solution found
------------------- QUERY 4 ----------------------
Running query 4 for 482 seconds. Remaining: 10 queries and 2225 seconds

Parameters: -s DFS -d 100 -q 100 ./model.pnml ./CTLCardinality.xml -x 4
No solution found
------------------- QUERY 6 ----------------------
Running query 6 for 482 seconds. Remaining: 9 queries and 2090 seconds

Parameters: -s DFS -d 100 -q 100 ./model.pnml ./CTLCardinality.xml -x 6
No solution found
------------------- QUERY 7 ----------------------
Running query 7 for 482 seconds. Remaining: 8 queries and 1955 seconds

Parameters: -s DFS -d 100 -q 100 ./model.pnml ./CTLCardinality.xml -x 7
No solution found
------------------- QUERY 8 ----------------------
Running query 8 for 482 seconds. Remaining: 7 queries and 1821 seconds

Parameters: -s DFS -d 100 -q 100 ./model.pnml ./CTLCardinality.xml -x 8

Search=DFS,Trace=DISABLED,State_Space_Exploration=DISABLED,Structural_Reduction=AGGRESSIVE,Struct_Red_Timout=100,Stubborn_Reduction=ENABLED,Query_Simplication=ENABLED,QSTimeout=100,Siphon_Trap=DISABLED,LPSolve_Timeout=10

Query before reduction: AG EX (1 <= LoadingMem)
Query after reduction: AG EX (1 <= LoadingMem)
Query size reduced from 5 to 5 nodes (0.00 percent reduction).
Query reduction finished after 0.000740 seconds.
No solution found
------------------- QUERY 9 ----------------------
Running query 9 for 482 seconds. Remaining: 6 queries and 1685 seconds

Parameters: -s DFS -d 100 -q 100 ./model.pnml ./CTLCardinality.xml -x 9

Search=DFS,Trace=DISABLED,State_Space_Exploration=DISABLED,Structural_Reduction=AGGRESSIVE,Struct_Red_Timout=100,Stubborn_Reduction=ENABLED,Query_Simplication=ENABLED,QSTimeout=100,Siphon_Trap=DISABLED,LPSolve_Timeout=10

Query before reduction: EF AF (not (3 <= DiskControllerUnit))
Query after reduction: EF AF (3 > DiskControllerUnit)
Query size reduced from 5 to 5 nodes (0.00 percent reduction).
Query reduction finished after 0.000807 seconds.
No solution found
------------------- QUERY 10 ----------------------
Running query 10 for 482 seconds. Remaining: 5 queries and 1536 seconds

Parameters: -s DFS -d 100 -q 100 ./model.pnml ./CTLCardinality.xml -x 10
No solution found
------------------- QUERY 11 ----------------------
Running query 11 for 482 seconds. Remaining: 4 queries and 1401 seconds

Parameters: -s DFS -d 100 -q 100 ./model.pnml ./CTLCardinality.xml -x 11

Search=DFS,Trace=DISABLED,State_Space_Exploration=DISABLED,Structural_Reduction=AGGRESSIVE,Struct_Red_Timout=100,Stubborn_Reduction=ENABLED,Query_Simplication=ENABLED,QSTimeout=100,Siphon_Trap=DISABLED,LPSolve_Timeout=10

Query before reduction: EF (TaskOnDisk <= TaskSuspended)
Query after reduction: EF (TaskOnDisk <= TaskSuspended)
Query size reduced from 4 to 4 nodes (0.00 percent reduction).
Query reduction finished after 0.000523 seconds.
Size of net before structural reductions: 9 places, 8 transitions
Size of net after structural reductions: 9 places, 8 transitions
Structural reduction finished after 0.000171 seconds

Net reduction is enabled.
Removed transitions: 0
Removed places: 0
Applications of rule A: 0
Applications of rule B: 0
Applications of rule C: 0
Applications of rule D: 0
Applications of rule E: 0

FORMULA SmallOperatingSystem-PT-MT8192DC4096-CTLCardinality-10 TRUE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STRUCTURAL_REDUCTION STATE_COMPRESSION STUBBORN_SETS

Query is satisfied.

STATS:
discovered states: 141511034
explored states: 96301767
expanded states: 24297958
max tokens: 28672

Solution found
------------------- QUERY 12 ----------------------
Running query 12 for 482 seconds. Remaining: 3 queries and 1203 seconds

Parameters: -s DFS -d 100 -q 100 ./model.pnml ./CTLCardinality.xml -x 12

Search=DFS,Trace=DISABLED,State_Space_Exploration=DISABLED,Structural_Reduction=AGGRESSIVE,Struct_Red_Timout=100,Stubborn_Reduction=ENABLED,Query_Simplication=ENABLED,QSTimeout=100,Siphon_Trap=DISABLED,LPSolve_Timeout=10

Query before reduction: A (AX (FreeMemSegment <= CPUUnit) U AG (LoadingMem <= FreeMemSegment))
Query after reduction: AF AG (LoadingMem <= FreeMemSegment)
Query size reduced from 9 to 5 nodes (44.44 percent reduction).
Query reduction finished after 0.001220 seconds.
No solution found
------------------- QUERY 15 ----------------------
Running query 15 for 535 seconds. Remaining: 2 queries and 1067 seconds

Parameters: -s DFS -d 100 -q 100 ./model.pnml ./CTLCardinality.xml -x 15

Search=DFS,Trace=DISABLED,State_Space_Exploration=DISABLED,Structural_Reduction=AGGRESSIVE,Struct_Red_Timout=100,Stubborn_Reduction=ENABLED,Query_Simplication=ENABLED,QSTimeout=100,Siphon_Trap=DISABLED,LPSolve_Timeout=10

Query before reduction: (not AG EF (TaskReady <= LoadingMem))
Query after reduction: EF AG (TaskReady > LoadingMem)
Query size reduced from 5 to 5 nodes (0.00 percent reduction).
Query reduction finished after 0.000521 seconds.
No solution found
------------------- QUERY 16 ----------------------
Running query 16 for 932 seconds. Remaining: 1 queries and 930 seconds

Parameters: -s DFS -d 100 -q 100 ./model.pnml ./CTLCardinality.xml -x 16
No solution found
---------------------------------------------------
Step 3: Multiquery processing
---------------------------------------------------
Remaining 11 queries are solved using multiquery
Time remaining: 795 seconds of the initial 3600 seconds
Running multiquery on -x 2,3,4,6,7,8,9,10,12,15,16 for 795 seconds

Parameters: -s DFS -d 100 -q 100 -p ./model.pnml ./CTLCardinality.xml -x 2,3,4,6,7,8,9,10,12,15,16
End of script.

BK_STOP 1496250488123

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

terminate called after throwing an instance of 'std::bad_alloc'
what(): std::bad_alloc
Command terminated by signal 6
Command being timed: "timeout 482 /home/mcc/BenchKit/bin/verifypn-linux64 -s DFS -d 100 -q 100 ./model.pnml ./CTLCardinality.xml -x 2"
User time (seconds): 125.03
System time (seconds): 9.58
Percent of CPU this job got: 99%
Elapsed (wall clock) time (h:mm:ss or m:ss): 2:14.76
Average shared text size (kbytes): 0
Average unshared data size (kbytes): 0
Average stack size (kbytes): 0
Average total size (kbytes): 0
Maximum resident set size (kbytes): 14438396
Average resident set size (kbytes): 0
Major (requiring I/O) page faults: 0
Minor (reclaiming a frame) page faults: 3740169
Voluntary context switches: 5
Involuntary context switches: 309
Swaps: 0
File system inputs: 384
File system outputs: 8
Socket messages sent: 0
Socket messages received: 0
Signals delivered: 0
Page size (bytes): 4096
Exit status: 0
Command exited with non-zero status 124
Command being timed: "timeout 482 /home/mcc/BenchKit/bin/verifypn-linux64 -s DFS -d 100 -q 100 ./model.pnml ./CTLCardinality.xml -x 3"
User time (seconds): 477.90
System time (seconds): 4.57
Percent of CPU this job got: 99%
Elapsed (wall clock) time (h:mm:ss or m:ss): 8:02.50
Average shared text size (kbytes): 0
Average unshared data size (kbytes): 0
Average stack size (kbytes): 0
Average total size (kbytes): 0
Maximum resident set size (kbytes): 7025224
Average resident set size (kbytes): 0
Major (requiring I/O) page faults: 0
Minor (reclaiming a frame) page faults: 1759349
Voluntary context switches: 4
Involuntary context switches: 1096
Swaps: 0
File system inputs: 0
File system outputs: 0
Socket messages sent: 0
Socket messages received: 0
Signals delivered: 0
Page size (bytes): 4096
Exit status: 124
Command terminated by signal 11
Command being timed: "timeout 482 /home/mcc/BenchKit/bin/verifypn-linux64 -s DFS -d 100 -q 100 ./model.pnml ./CTLCardinality.xml -x 4"
User time (seconds): 125.08
System time (seconds): 9.70
Percent of CPU this job got: 99%
Elapsed (wall clock) time (h:mm:ss or m:ss): 2:14.97
Average shared text size (kbytes): 0
Average unshared data size (kbytes): 0
Average stack size (kbytes): 0
Average total size (kbytes): 0
Maximum resident set size (kbytes): 14438056
Average resident set size (kbytes): 0
Major (requiring I/O) page faults: 0
Minor (reclaiming a frame) page faults: 3740127
Voluntary context switches: 3
Involuntary context switches: 323
Swaps: 0
File system inputs: 0
File system outputs: 0
Socket messages sent: 0
Socket messages received: 0
Signals delivered: 0
Page size (bytes): 4096
Exit status: 0
Command terminated by signal 11
Command being timed: "timeout 482 /home/mcc/BenchKit/bin/verifypn-linux64 -s DFS -d 100 -q 100 ./model.pnml ./CTLCardinality.xml -x 6"
User time (seconds): 126.24
System time (seconds): 9.62
Percent of CPU this job got: 99%
Elapsed (wall clock) time (h:mm:ss or m:ss): 2:15.88
Average shared text size (kbytes): 0
Average unshared data size (kbytes): 0
Average stack size (kbytes): 0
Average total size (kbytes): 0
Maximum resident set size (kbytes): 14438100
Average resident set size (kbytes): 0
Major (requiring I/O) page faults: 0
Minor (reclaiming a frame) page faults: 3740163
Voluntary context switches: 3
Involuntary context switches: 311
Swaps: 0
File system inputs: 0
File system outputs: 0
Socket messages sent: 0
Socket messages received: 0
Signals delivered: 0
Page size (bytes): 4096
Exit status: 0
Command terminated by signal 11
Command being timed: "timeout 482 /home/mcc/BenchKit/bin/verifypn-linux64 -s DFS -d 100 -q 100 ./model.pnml ./CTLCardinality.xml -x 7"
User time (seconds): 123.92
System time (seconds): 9.32
Percent of CPU this job got: 99%
Elapsed (wall clock) time (h:mm:ss or m:ss): 2:13.25
Average shared text size (kbytes): 0
Average unshared data size (kbytes): 0
Average stack size (kbytes): 0
Average total size (kbytes): 0
Maximum resident set size (kbytes): 14438148
Average resident set size (kbytes): 0
Major (requiring I/O) page faults: 0
Minor (reclaiming a frame) page faults: 3740153
Voluntary context switches: 3
Involuntary context switches: 237
Swaps: 0
File system inputs: 0
File system outputs: 0
Socket messages sent: 0
Socket messages received: 0
Signals delivered: 0
Page size (bytes): 4096
Exit status: 0
terminate called after throwing an instance of 'std::bad_alloc'
what(): std::bad_alloc
Command terminated by signal 6
Command being timed: "timeout 482 /home/mcc/BenchKit/bin/verifypn-linux64 -s DFS -d 100 -q 100 ./model.pnml ./CTLCardinality.xml -x 8"
User time (seconds): 126.46
System time (seconds): 9.47
Percent of CPU this job got: 99%
Elapsed (wall clock) time (h:mm:ss or m:ss): 2:15.95
Average shared text size (kbytes): 0
Average unshared data size (kbytes): 0
Average stack size (kbytes): 0
Average total size (kbytes): 0
Maximum resident set size (kbytes): 14286320
Average resident set size (kbytes): 0
Major (requiring I/O) page faults: 0
Minor (reclaiming a frame) page faults: 3702127
Voluntary context switches: 3
Involuntary context switches: 309
Swaps: 0
File system inputs: 0
File system outputs: 8
Socket messages sent: 0
Socket messages received: 0
Signals delivered: 0
Page size (bytes): 4096
Exit status: 0
terminate called after throwing an instance of 'std::bad_alloc'
what(): std::bad_alloc
Command terminated by signal 6
Command being timed: "timeout 482 /home/mcc/BenchKit/bin/verifypn-linux64 -s DFS -d 100 -q 100 ./model.pnml ./CTLCardinality.xml -x 9"
User time (seconds): 139.29
System time (seconds): 9.62
Percent of CPU this job got: 99%
Elapsed (wall clock) time (h:mm:ss or m:ss): 2:29.10
Average shared text size (kbytes): 0
Average unshared data size (kbytes): 0
Average stack size (kbytes): 0
Average total size (kbytes): 0
Maximum resident set size (kbytes): 14282336
Average resident set size (kbytes): 0
Major (requiring I/O) page faults: 0
Minor (reclaiming a frame) page faults: 3701135
Voluntary context switches: 3
Involuntary context switches: 342
Swaps: 0
File system inputs: 0
File system outputs: 8
Socket messages sent: 0
Socket messages received: 0
Signals delivered: 0
Page size (bytes): 4096
Exit status: 0
Command terminated by signal 11
Command being timed: "timeout 482 /home/mcc/BenchKit/bin/verifypn-linux64 -s DFS -d 100 -q 100 ./model.pnml ./CTLCardinality.xml -x 10"
User time (seconds): 126.24
System time (seconds): 9.07
Percent of CPU this job got: 99%
Elapsed (wall clock) time (h:mm:ss or m:ss): 2:15.32
Average shared text size (kbytes): 0
Average unshared data size (kbytes): 0
Average stack size (kbytes): 0
Average total size (kbytes): 0
Maximum resident set size (kbytes): 14438128
Average resident set size (kbytes): 0
Major (requiring I/O) page faults: 0
Minor (reclaiming a frame) page faults: 3740181
Voluntary context switches: 3
Involuntary context switches: 306
Swaps: 0
File system inputs: 0
File system outputs: 0
Socket messages sent: 0
Socket messages received: 0
Signals delivered: 0
Page size (bytes): 4096
Exit status: 0
Command being timed: "timeout 482 /home/mcc/BenchKit/bin/verifypn-linux64 -s DFS -d 100 -q 100 ./model.pnml ./CTLCardinality.xml -x 11"
User time (seconds): 195.29
System time (seconds): 2.10
Percent of CPU this job got: 99%
Elapsed (wall clock) time (h:mm:ss or m:ss): 3:17.41
Average shared text size (kbytes): 0
Average unshared data size (kbytes): 0
Average stack size (kbytes): 0
Average total size (kbytes): 0
Maximum resident set size (kbytes): 3336804
Average resident set size (kbytes): 0
Major (requiring I/O) page faults: 0
Minor (reclaiming a frame) page faults: 835500
Voluntary context switches: 3
Involuntary context switches: 369
Swaps: 0
File system inputs: 0
File system outputs: 0
Socket messages sent: 0
Socket messages received: 0
Signals delivered: 0
Page size (bytes): 4096
Exit status: 0
terminate called after throwing an instance of 'std::bad_alloc'
what(): std::bad_alloc
Command terminated by signal 6
Command being timed: "timeout 482 /home/mcc/BenchKit/bin/verifypn-linux64 -s DFS -d 100 -q 100 ./model.pnml ./CTLCardinality.xml -x 12"
User time (seconds): 126.62
System time (seconds): 9.24
Percent of CPU this job got: 99%
Elapsed (wall clock) time (h:mm:ss or m:ss): 2:16.04
Average shared text size (kbytes): 0
Average unshared data size (kbytes): 0
Average stack size (kbytes): 0
Average total size (kbytes): 0
Maximum resident set size (kbytes): 14438392
Average resident set size (kbytes): 0
Major (requiring I/O) page faults: 0
Minor (reclaiming a frame) page faults: 3740164
Voluntary context switches: 3
Involuntary context switches: 345
Swaps: 0
File system inputs: 0
File system outputs: 8
Socket messages sent: 0
Socket messages received: 0
Signals delivered: 0
Page size (bytes): 4096
Exit status: 0
terminate called after throwing an instance of 'std::bad_alloc'
what(): std::bad_alloc
Command terminated by signal 6
Command being timed: "timeout 535 /home/mcc/BenchKit/bin/verifypn-linux64 -s DFS -d 100 -q 100 ./model.pnml ./CTLCardinality.xml -x 15"
User time (seconds): 127.08
System time (seconds): 9.66
Percent of CPU this job got: 99%
Elapsed (wall clock) time (h:mm:ss or m:ss): 2:16.91
Average shared text size (kbytes): 0
Average unshared data size (kbytes): 0
Average stack size (kbytes): 0
Average total size (kbytes): 0
Maximum resident set size (kbytes): 14486556
Average resident set size (kbytes): 0
Major (requiring I/O) page faults: 0
Minor (reclaiming a frame) page faults: 3752190
Voluntary context switches: 3
Involuntary context switches: 316
Swaps: 0
File system inputs: 0
File system outputs: 8
Socket messages sent: 0
Socket messages received: 0
Signals delivered: 0
Page size (bytes): 4096
Exit status: 0
Command terminated by signal 11
Command being timed: "timeout 932 /home/mcc/BenchKit/bin/verifypn-linux64 -s DFS -d 100 -q 100 ./model.pnml ./CTLCardinality.xml -x 16"
User time (seconds): 127.21
System time (seconds): 9.74
Percent of CPU this job got: 99%
Elapsed (wall clock) time (h:mm:ss or m:ss): 2:16.97
Average shared text size (kbytes): 0
Average unshared data size (kbytes): 0
Average stack size (kbytes): 0
Average total size (kbytes): 0
Maximum resident set size (kbytes): 14438068
Average resident set size (kbytes): 0
Major (requiring I/O) page faults: 0
Minor (reclaiming a frame) page faults: 3740186
Voluntary context switches: 3
Involuntary context switches: 310
Swaps: 0
File system inputs: 0
File system outputs: 0
Socket messages sent: 0
Socket messages received: 0
Signals delivered: 0
Page size (bytes): 4096
Exit status: 0
Command terminated by signal 11
Command being timed: "timeout 795 /home/mcc/BenchKit/bin/verifypn-linux64 -s DFS -d 100 -q 100 -p ./model.pnml ./CTLCardinality.xml -x 2,3,4,6,7,8,9,10,12,15,16"
User time (seconds): 128.49
System time (seconds): 9.38
Percent of CPU this job got: 99%
Elapsed (wall clock) time (h:mm:ss or m:ss): 2:18.05
Average shared text size (kbytes): 0
Average unshared data size (kbytes): 0
Average stack size (kbytes): 0
Average total size (kbytes): 0
Maximum resident set size (kbytes): 14438044
Average resident set size (kbytes): 0
Major (requiring I/O) page faults: 0
Minor (reclaiming a frame) page faults: 3740579
Voluntary context switches: 3
Involuntary context switches: 316
Swaps: 0
File system inputs: 0
File system outputs: 0
Socket messages sent: 0
Socket messages received: 0
Signals delivered: 0
Page size (bytes): 4096
Exit status: 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="S_SmallOperatingSystem-PT-MT8192DC4096"
export BK_EXAMINATION="CTLCardinality"
export BK_TOOL="tapaal"
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

tar xzf /home/mcc/BenchKit/INPUTS/S_SmallOperatingSystem-PT-MT8192DC4096.tgz
mv S_SmallOperatingSystem-PT-MT8192DC4096 execution

# this is for BenchKit: explicit launching of the test

cd execution
echo "====================================================================="
echo " Generated by BenchKit 2-3253"
echo " Executing tool tapaal"
echo " Input is S_SmallOperatingSystem-PT-MT8192DC4096, examination is CTLCardinality"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r159-ebro-149443465400057"
echo "====================================================================="
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
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 ;