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)
.................
/home/mcc/execution
total 3.1M
-rw-r--r-- 1 mcc users 4.7K May 15 18:54 CTLCardinality.txt
-rw-r--r-- 1 mcc users 23K May 15 18:54 CTLCardinality.xml
-rw-r--r-- 1 mcc users 3.0K May 15 18:54 CTLFireability.txt
-rw-r--r-- 1 mcc users 14K May 15 18:54 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.0K May 15 18:50 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 5.9K May 15 18:50 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 2.9K May 15 18:54 LTLCardinality.txt
-rw-r--r-- 1 mcc users 12K May 15 18:54 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.6K May 15 18:54 LTLFireability.txt
-rw-r--r-- 1 mcc users 11K May 15 18:54 LTLFireability.xml
-rw-r--r-- 1 mcc users 5.0K May 15 18:54 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 22K May 15 18:54 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 117 May 15 18:54 ReachabilityDeadlock.txt
-rw-r--r-- 1 mcc users 355 May 15 18:54 ReachabilityDeadlock.xml
-rw-r--r-- 1 mcc users 3.7K May 15 18:54 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 15K May 15 18:54 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 2.0K May 15 18:54 UpperBounds.txt
-rw-r--r-- 1 mcc users 4.0K May 15 18:54 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 May 15 18:50 equiv_col
-rw-r--r-- 1 mcc users 10 May 15 18:50 instance
-rw-r--r-- 1 mcc users 6 May 15 18:50 iscolored
-rwxr-xr-x 1 mcc users 3.0M May 15 18:50 model.pnml
=====================================================================
Generated by BenchKit 2-3637
Executing tool irma4mcc-full
Input is HypercubeGrid-PT-C4K3P3B12, examination is CTLFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r102-smll-152658632900116
=====================================================================

--------------------
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 HypercubeGrid-PT-C4K3P3B12-CTLFireability-00
FORMULA_NAME HypercubeGrid-PT-C4K3P3B12-CTLFireability-01
FORMULA_NAME HypercubeGrid-PT-C4K3P3B12-CTLFireability-02
FORMULA_NAME HypercubeGrid-PT-C4K3P3B12-CTLFireability-03
FORMULA_NAME HypercubeGrid-PT-C4K3P3B12-CTLFireability-04
FORMULA_NAME HypercubeGrid-PT-C4K3P3B12-CTLFireability-05
FORMULA_NAME HypercubeGrid-PT-C4K3P3B12-CTLFireability-06
FORMULA_NAME HypercubeGrid-PT-C4K3P3B12-CTLFireability-07
FORMULA_NAME HypercubeGrid-PT-C4K3P3B12-CTLFireability-08
FORMULA_NAME HypercubeGrid-PT-C4K3P3B12-CTLFireability-09
FORMULA_NAME HypercubeGrid-PT-C4K3P3B12-CTLFireability-10
FORMULA_NAME HypercubeGrid-PT-C4K3P3B12-CTLFireability-11
FORMULA_NAME HypercubeGrid-PT-C4K3P3B12-CTLFireability-12
FORMULA_NAME HypercubeGrid-PT-C4K3P3B12-CTLFireability-13
FORMULA_NAME HypercubeGrid-PT-C4K3P3B12-CTLFireability-14
FORMULA_NAME HypercubeGrid-PT-C4K3P3B12-CTLFireability-15

=== Now, execution of the tool begins

BK_START 1526716578465


BK_STOP 1526716938061

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

Prefix is 65b80f64.
Reading known information in /usr/share/mcc4mcc/65b80f64-known.json.
Reading learned information in /usr/share/mcc4mcc/65b80f64-learned.json.
Reading value translations in /usr/share/mcc4mcc/65b80f64-values.json.
Using directory /home/mcc/execution for input, as it contains a model.pnml file.
Using HypercubeGrid-PT-C4K3P3B12 as instance name.
Using HypercubeGrid as model name.
Using algorithm or tool voting-classifier.
Model characteristics are: {'Examination': 'CTLFireability', 'Place/Transition': True, 'Colored': False, 'Relative-Time': 1, 'Relative-Memory': 1, 'Ordinary': True, 'Simple Free Choice': False, 'Extended Free Choice': False, 'State Machine': False, 'Marked Graph': False, 'Connected': True, 'Strongly Connected': True, 'Source Place': False, 'Sink Place': False, 'Source Transition': False, 'Sink Transition': False, 'Loop Free': True, 'Conservative': True, 'Sub-Conservative': True, 'Nested Units': False, 'Safe': False, 'Deadlock': False, 'Reversible': False, 'Quasi Live': True, 'Live': False}.
/usr/local/lib/python3.6/dist-packages/sklearn/preprocessing/label.py:151: DeprecationWarning: The truth value of an empty array is ambiguous. Returning False, but in future this will result in an error. Use `array.size > 0` to check that an array is not empty.
if diff:
Known tools are: [{'Time': 89894, 'Memory': 15942.02, 'Tool': 'lola'}, {'Time': 91427, 'Memory': 15941.92, 'Tool': 'lola'}].
Learned tools are: [{'Tool': 'lola'}].
Learned tool lola is 1.0x far from the best tool lola.
CTLFireability lola HypercubeGrid-PT-C4K3P3B12...

Time: 3600 - MCC
----- Start make prepare stdout -----
----- Start make prepare stderr -----
===========================================================================================
HypercubeGrid-PT-C4K3P3B12: translating PT Petri net model.pnml into LoLA format
===========================================================================================
translating PT Petri net complete


checking for too many tokens
===========================================================================================
HypercubeGrid-PT-C4K3P3B12: translating PT formula CTLFireability into LoLA format
===========================================================================================
translating formula complete
touch formulae;
----- Start make result stdout -----
----- Start make result stderr -----
CTLFireability @ HypercubeGrid-PT-C4K3P3B12 @ 3539 seconds
Makefile:222: recipe for target 'verify' failed
----- Start make result stdout -----
make: [verify] Error 134 (ignored)
----- Start make result stderr -----
lola: LoLA will run for 3539 seconds at most (--timelimit)
lola: NET
lola: reading net from model.pnml.lola
lola: finished parsing
lola: closed net file model.pnml.lola
lola: 7857/65536 symbol table entries, 1827 collisions
lola: preprocessing...
lola: finding significant places
lola: 2457 places, 5400 transitions, 1511 significant places
lola: computing forward-conflicting sets
lola: computing back-conflicting sets
lola: 6345 transition conflict sets
lola: TASK
lola: reading formula from HypercubeGrid-PT-C4K3P3B12-CTLFireability.task
lola: ((NOT(A (F (NOT FIREABLE(ti_d1_n1_d2_n1_3_3_1_2)))) AND (FIREABLE(ti_d3_n1_d1_n2_3_1_1_1) AND (FIREABLE(ti_d4_n2_d3_n2_3_2_2_2) OR FIREABLE(ti_d3_n1_d4_n1_1_1_1_2)))) OR A (F (NOT(E (F (FIREABLE(ti_d2_n1_d1_n1_2_3_3_3))))))) : E (X (NOT(E (F (FIREABLE(to_d3_n2_2_1_1_1)))))) : E (X (NOT(E (F ((FIREABLE(ti_d1_n2_d3_n1_1_2_2_3) AND FIREABLE(to_d1_n1_3_2_3_1))))))) : A (F (FIREABLE(ti_d1_n1_d2_n2_3_1_1_1))) : (NOT((A (F (NOT FIREABLE(ti_d1_n2_d2_n2_1_1_2_2))) OR E (F ((FIREABLE(ti_d2_n2_d3_n1_2_1_2_1) OR FIREABLE(ti_d1_n1_d4_n2_1_1_1_1)))))) OR A (F ((E (F (FIREABLE(to_d4_n1_3_3_1_2))) AND FIREABLE(ti_d1_n1_d4_n1_2_1_3_1))))) : E (F (NOT((FIREABLE(ti_d1_n1_d3_n1_3_1_3_3) OR A (F (FIREABLE(tt_d3_n1_2_3_1_2))))))) : E (F (E (G (A (X (FIREABLE(to_d1_n2_1_1_1_2))))))) : E (G (E (F (A (X (FIREABLE(ti_d2_n2_d1_n1_2_3_3_3))))))) : ((FIREABLE(ti_d3_n2_d3_n1_1_3_3_3) OR A (G (NOT FIREABLE(tt_d3_n1_1_3_1_3)))) OR (E (F (A (F (FIREABLE(ti_d4_n1_d3_n2_3_3_3_1))))) AND E ((NOT FIREABLE(ti_d3_n2_d1_n2_2_3_3_3) U NOT FIREABLE(ti_d2_n2_d4_n2_2_1_2_1))))) : NOT((((FIREABLE(to_d1_n1_2_3_1_2) AND A (X (FIREABLE(ti_d2_n2_d1_n1_3_1_2_2)))) OR (NOT FIREABLE(ti_d3_n1_d3_n2_1_2_2_2) AND NOT FIREABLE(ti_d2_n2_d4_n1_1_2_2_3) AND (NOT FIREABLE(ti_d3_n1_d2_n2_2_3_2_1) OR NOT FIREABLE(ti_d3_n1_d3_n2_1_1_2_1)))) AND E (F (FIREABLE(ti_d2_n2_d4_n1_3_3_2_1))))) : A ((FIREABLE(ti_d2_n2_d4_n1_2_3_2_1) U E (F (FIREABLE(ti_d4_n2_d4_n1_1_3_3_3))))) : E (G (E (X (E (X (FIREABLE(ti_d4_n2_d1_n1_3_1_1_1))))))) : E (X (((FIREABLE(to_d2_n2_2_2_2_2) AND FIREABLE(ti_d2_n1_d3_n1_1_3_3_2)) AND E (X ((FIREABLE(ti_d2_n2_d2_n1_2_3_3_3) OR FIREABLE(ti_d2_n2_d1_n2_3_1_1_2))))))) : (FIREABLE(ti_d3_n1_d3_n2_2_1_1_1) OR A (X (E (F (NOT FIREABLE(ti_d2_n1_d4_n1_2_3_2_2)))))) : E (F ((FIREABLE(ti_d2_n1_d1_n1_3_3_2_2) AND FIREABLE(ti_d1_n1_d2_n1_2_3_1_1)))) : E (G ((A (F (FIREABLE(ti_d2_n1_d4_n1_2_2_3_3))) OR FIREABLE(ti_d2_n1_d3_n2_2_2_2_2))))
lola: computing a collection of formulas
lola: RUNNING
lola: subprocess 0 will run for 221 seconds at most (--localtimelimit=-1)
lola: ========================================
lola: ...considering subproblem: ((NOT(A (F (NOT FIREABLE(ti_d1_n1_d2_n1_3_3_1_2)))) AND (FIREABLE(ti_d3_n1_d1_n2_3_1_1_1) AND (FIREABLE(ti_d4_n2_d3_n2_3_2_2_2) OR FIREABLE(ti_d3_n1_d4_n1_1_1_1_2)))) OR A (F (NOT(E (F (FIREABLE(ti_d2_n1_d1_n1_2_3_3_3)))))))
lola: ========================================
lola: SUBTASK
lola: checking a Boolean combination of formulas
lola: RUNNING
lola: subprocess 0 will run for 221 seconds at most (--localtimelimit=-1)
lola: ========================================
lola: ...considering subproblem: E (G (FIREABLE(ti_d1_n1_d2_n1_3_3_1_2)))
lola: ========================================
lola: SUBTASK
lola: checking CTL
lola: processed formula: NOT(A(TRUE U NOT FIREABLE(ti_d1_n1_d2_n1_3_3_1_2)))
lola: processed formula length: 51
lola: 8 rewrites
lola: formula mentions 0 of 2457 places; total mentions: 0
lola: closed formula file HypercubeGrid-PT-C4K3P3B12-CTLFireability.task
lola: STORE
lola: using a bit-perfect encoder (--encoder=bit)
lola: using 6044 bytes per marking, with 0 unused bits
lola: using a prefix tree store (--store=prefix)
lola: Using CTL preserving stubborn sets
lola: RUNNING
lola: CTL formula contains 1 significant temporal operators and needs 5 bytes of payload
lola: Ignoring fairness constraints (--fair).
lola: SUBRESULT
lola: result: no
lola: produced by: CTL model checker
lola: The net does not satisfy the given formula.
lola: 1 markings, 0 edges
lola: ========================================
lola: subprocess 1 will run for 235 seconds at most (--localtimelimit=-1)
lola: ========================================
lola: ...considering subproblem: A (F (A (G (NOT FIREABLE(ti_d2_n1_d1_n1_2_3_3_3)))))
lola: ========================================
lola: SUBTASK
lola: checking LTL
lola: transforming LTL-Formula into a B\xfcchi-Automaton
lola: processed formula: A (F (A (G (NOT FIREABLE(ti_d2_n1_d1_n1_2_3_3_3)))))
lola: processed formula: A (F (A (G (NOT FIREABLE(ti_d2_n1_d1_n1_2_3_3_3)))))
lola: processed formula length: 52
lola: 6 rewrites
lola: formula mentions 0 of 2457 places; total mentions: 0
lola: closed formula file HypercubeGrid-PT-C4K3P3B12-CTLFireability.task
lola: the resulting B\xfcchi automaton has 2 states
lola: STORE
lola: using a bit-perfect encoder (--encoder=bit)
lola: using 6048 bytes per marking, with 30 unused bits
lola: using a prefix tree store (--store=prefix)
lola: using ltl preserving stubborn set method (--stubborn)
lola: SEARCH
lola: RUNNING
lola: 2431 markings, 2469 edges, 486 markings/sec, 0 secs
lola: 2511 markings, 2549 edges, 16 markings/sec, 5 secs
lola: 2600 markings, 2638 edges, 18 markings/sec, 10 secs
lola: 2701 markings, 2739 edges, 20 markings/sec, 15 secs
lola: 2905 markings, 2943 edges, 41 markings/sec, 20 secs
lola: 3155 markings, 3193 edges, 50 markings/sec, 25 secs
lola: 3478 markings, 3516 edges, 65 markings/sec, 30 secs
lola: 3832 markings, 3870 edges, 71 markings/sec, 35 secs
lola: 4162 markings, 4200 edges, 66 markings/sec, 40 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: 4339 markings, 4379 edges
lola: ========================================
lola: SUBRESULT
lola: result: no
lola: The Boolean predicate is false.
lola: ========================================
lola: subprocess 1 will run for 232 seconds at most (--localtimelimit=-1)
lola: ========================================
lola: ...considering subproblem: E (X (NOT(E (F (FIREABLE(to_d3_n2_2_1_1_1))))))
lola: ========================================
lola: SUBTASK
lola: checking CTL
lola: processed formula: EX(NOT(E(TRUE U FIREABLE(to_d3_n2_2_1_1_1))))
lola: processed formula length: 45
lola: 6 rewrites
lola: formula mentions 0 of 2457 places; total mentions: 0
lola: closed formula file HypercubeGrid-PT-C4K3P3B12-CTLFireability.task
lola: STORE
lola: using a bit-perfect encoder (--encoder=bit)
lola: using 6044 bytes per marking, with 0 unused bits
lola: using a prefix tree store (--store=prefix)
lola: Formula contains EX or AX operators, stubborn sets not applicable
lola: RUNNING
lola: CTL formula contains 1 significant temporal operators and needs 5 bytes of payload
lola: Ignoring fairness constraints (--fair).
lola: SUBRESULT
lola: result: no
lola: produced by: CTL model checker
lola: The net does not satisfy the given formula.
lola: 1580 markings, 1579 edges
lola: ========================================
lola: subprocess 2 will run for 249 seconds at most (--localtimelimit=-1)
lola: ========================================
lola: ...considering subproblem: E (X (NOT(E (F ((FIREABLE(ti_d1_n2_d3_n1_1_2_2_3) AND FIREABLE(to_d1_n1_3_2_3_1)))))))
lola: ========================================
lola: SUBTASK
lola: checking CTL
lola: processed formula: EX(NOT(E(TRUE U (FIREABLE(ti_d1_n2_d3_n1_1_2_2_3) AND FIREABLE(to_d1_n1_3_2_3_1)))))
lola: processed formula length: 84
lola: 6 rewrites
lola: formula mentions 0 of 2457 places; total mentions: 0
lola: closed formula file HypercubeGrid-PT-C4K3P3B12-CTLFireability.task
lola: STORE
lola: using a bit-perfect encoder (--encoder=bit)
lola: using 6044 bytes per marking, with 0 unused bits
lola: using a prefix tree store (--store=prefix)
lola: Formula contains EX or AX operators, stubborn sets not applicable
lola: RUNNING
lola: CTL formula contains 1 significant temporal operators and needs 5 bytes of payload
lola: Ignoring fairness constraints (--fair).
lola: 274991 markings, 275264 edges, 54998 markings/sec, 0 secs
lola: 503454 markings, 503728 edges, 45693 markings/sec, 5 secs
lola: 705729 markings, 706003 edges, 40455 markings/sec, 10 secs
lola: SUBRESULT
lola: result: no
lola: produced by: CTL model checker
lola: The net does not satisfy the given formula.
lola: 860879 markings, 861152 edges
lola: ========================================
lola: subprocess 3 will run for 267 seconds at most (--localtimelimit=-1)
lola: ========================================
lola: ...considering subproblem: A (F (FIREABLE(ti_d1_n1_d2_n2_3_1_1_1)))
lola: ========================================
lola: SUBTASK
lola: checking LTL
lola: transforming LTL-Formula into a B\xfcchi-Automaton
lola: processed formula: A (F (FIREABLE(ti_d1_n1_d2_n2_3_1_1_1)))
lola: processed formula: A (F (FIREABLE(ti_d1_n1_d2_n2_3_1_1_1)))
lola: processed formula length: 40
lola: 0 rewrites
lola: formula mentions 0 of 2457 places; total mentions: 0
lola: closed formula file HypercubeGrid-PT-C4K3P3B12-CTLFireability.task
lola: the resulting B\xfcchi automaton has 1 states
lola: STORE
lola: using a bit-perfect encoder (--encoder=bit)
lola: using 6048 bytes per marking, with 31 unused bits
lola: using a prefix tree store (--store=prefix)
lola: using ltl preserving stubborn set method (--stubborn)
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: 1073 markings, 1073 edges
lola: ========================================
lola: subprocess 4 will run for 289 seconds at most (--localtimelimit=-1)
lola: ========================================
lola: ...considering subproblem: (NOT((A (F (NOT FIREABLE(ti_d1_n2_d2_n2_1_1_2_2))) OR E (F ((FIREABLE(ti_d2_n2_d3_n1_2_1_2_1) OR FIREABLE(ti_d1_n1_d4_n2_1_1_1_1)))))) OR A (F ((E (F (FIREABLE(to_d4_n1_3_3_1_2))) AND FIREABLE(ti_d1_n1_d4_n1_2_1_3_1)))))
lola: ========================================
lola: SUBTASK
lola: checking a Boolean combination of formulas
lola: RUNNING
lola: subprocess 4 will run for 289 seconds at most (--localtimelimit=-1)
lola: ========================================
lola: ...considering subproblem: E (G (FIREABLE(ti_d1_n2_d2_n2_1_1_2_2)))
lola: ========================================
lola: SUBTASK
lola: checking CTL
lola: processed formula: NOT(A(TRUE U NOT FIREABLE(ti_d1_n2_d2_n2_1_1_2_2)))
lola: processed formula length: 51
lola: 9 rewrites
lola: formula mentions 0 of 2457 places; total mentions: 0
lola: closed formula file HypercubeGrid-PT-C4K3P3B12-CTLFireability.task
lola: STORE
lola: using a bit-perfect encoder (--encoder=bit)
lola: using 6044 bytes per marking, with 0 unused bits
lola: using a prefix tree store (--store=prefix)
lola: Using CTL preserving stubborn sets
lola: RUNNING
lola: CTL formula contains 1 significant temporal operators and needs 5 bytes of payload
lola: Ignoring fairness constraints (--fair).
lola: SUBRESULT
lola: result: no
lola: produced by: CTL model checker
lola: The net does not satisfy the given formula.
lola: 1 markings, 0 edges
lola: ========================================
lola: subprocess 5 will run for 315 seconds at most (--localtimelimit=-1)
lola: ========================================
lola: ...considering subproblem: A (F ((E (F (FIREABLE(to_d4_n1_3_3_1_2))) AND FIREABLE(ti_d1_n1_d4_n1_2_1_3_1))))
lola: ========================================
lola: SUBTASK
lola: checking CTL
lola: processed formula: A(TRUE U (E(TRUE U FIREABLE(to_d4_n1_3_3_1_2)) AND FIREABLE(ti_d1_n1_d4_n1_2_1_3_1)))
lola: processed formula length: 85
lola: 9 rewrites
lola: formula mentions 0 of 2457 places; total mentions: 0
lola: closed formula file HypercubeGrid-PT-C4K3P3B12-CTLFireability.task
lola: STORE
lola: using a bit-perfect encoder (--encoder=bit)
lola: using 6044 bytes per marking, with 0 unused bits
lola: using a prefix tree store (--store=prefix)
lola: Using CTL preserving stubborn sets
lola: RUNNING
lola: CTL formula contains 2 significant temporal operators and needs 9 bytes of payload
lola: Ignoring fairness constraints (--fair).
lola: SUBRESULT
lola: result: no
lola: produced by: CTL model checker
lola: The net does not satisfy the given formula.
lola: 2431 markings, 4862 edges
lola: ========================================
lola: SUBRESULT
lola: result: no
lola: The Boolean predicate is false.
lola: ========================================
lola: subprocess 5 will run for 315 seconds at most (--localtimelimit=-1)
lola: ========================================
lola: ...considering subproblem: E (F (NOT((FIREABLE(ti_d1_n1_d3_n1_3_1_3_3) OR A (F (FIREABLE(tt_d3_n1_2_3_1_2)))))))
lola: ========================================
lola: SUBTASK
lola: checking CTL
lola: processed formula: E(TRUE U (NOT FIREABLE(ti_d1_n1_d3_n1_3_1_3_3) AND NOT(A(TRUE U FIREABLE(tt_d3_n1_2_3_1_2)))))
lola: processed formula length: 94
lola: 8 rewrites
lola: formula mentions 0 of 2457 places; total mentions: 0
lola: closed formula file HypercubeGrid-PT-C4K3P3B12-CTLFireability.task
lola: STORE
lola: using a bit-perfect encoder (--encoder=bit)
lola: using 6044 bytes per marking, with 0 unused bits
lola: using a prefix tree store (--store=prefix)
lola: Using CTL preserving stubborn sets
lola: RUNNING
lola: CTL formula contains 2 significant temporal operators and needs 9 bytes of payload
lola: Ignoring fairness constraints (--fair).
lola: SUBRESULT
lola: result: yes
lola: produced by: CTL model checker
lola: The net satisfies the given formula.
lola: 2463 markings, 2464 edges
lola: ========================================
lola: subprocess 6 will run for 347 seconds at most (--localtimelimit=-1)
lola: ========================================
lola: ...considering subproblem: E (F (E (G (A (X (FIREABLE(to_d1_n2_1_1_1_2)))))))
lola: ========================================
lola: SUBTASK
lola: checking CTL
lola: processed formula: E(TRUE U NOT(A(TRUE U NOT(AX(FIREABLE(to_d1_n2_1_1_1_2))))))
lola: processed formula length: 60
lola: 3 rewrites
lola: formula mentions 0 of 2457 places; total mentions: 0
lola: closed formula file HypercubeGrid-PT-C4K3P3B12-CTLFireability.task
lola: STORE
lola: using a bit-perfect encoder (--encoder=bit)
lola: using 6044 bytes per marking, with 0 unused bits
lola: using a prefix tree store (--store=prefix)
lola: Formula contains EX or AX operators, stubborn sets not applicable
lola: RUNNING
lola: CTL formula contains 2 significant temporal operators and needs 9 bytes of payload
lola: Ignoring fairness constraints (--fair).
lola: SUBRESULT
lola: result: yes
lola: produced by: CTL model checker
lola: The net satisfies the given formula.
lola: 21303 markings, 43849 edges
lola: ========================================
lola: subprocess 7 will run for 385 seconds at most (--localtimelimit=-1)
lola: ========================================
lola: ...considering subproblem: E (G (E (F (A (X (FIREABLE(ti_d2_n2_d1_n1_2_3_3_3)))))))
lola: ========================================
lola: SUBTASK
lola: checking CTL
lola: processed formula: NOT(A(TRUE U NOT(E(TRUE U AX(FIREABLE(ti_d2_n2_d1_n1_2_3_3_3))))))
lola: processed formula length: 66
lola: 3 rewrites
lola: formula mentions 0 of 2457 places; total mentions: 0
lola: closed formula file HypercubeGrid-PT-C4K3P3B12-CTLFireability.task
lola: STORE
lola: using a bit-perfect encoder (--encoder=bit)
lola: using 6044 bytes per marking, with 0 unused bits
lola: using a prefix tree store (--store=prefix)
lola: Formula contains EX or AX operators, stubborn sets not applicable
lola: RUNNING
lola: CTL formula contains 2 significant temporal operators and needs 9 bytes of payload
lola: Ignoring fairness constraints (--fair).
lola: SUBRESULT
lola: result: yes
lola: produced by: CTL model checker
lola: The net satisfies the given formula.
lola: 21303 markings, 35648 edges
lola: ========================================
lola: subprocess 8 will run for 433 seconds at most (--localtimelimit=-1)
lola: ========================================
lola: ...considering subproblem: ((FIREABLE(ti_d3_n2_d3_n1_1_3_3_3) OR A (G (NOT FIREABLE(tt_d3_n1_1_3_1_3)))) OR (E (F (A (F (FIREABLE(ti_d4_n1_d3_n2_3_3_3_1))))) AND E ((NOT FIREABLE(ti_d3_n2_d1_n2_2_3_3_3) U NOT FIREABLE(ti_d2_n2_d4_n2_2_1_2_1)))))
lola: ========================================
lola: SUBTASK
lola: checking a Boolean combination of formulas
lola: RUNNING
lola: subprocess 8 will run for 433 seconds at most (--localtimelimit=-1)
lola: ========================================
lola: ...considering subproblem: FIREABLE(ti_d3_n2_d3_n1_1_3_3_3)
lola: ========================================
lola: SUBTASK
lola: checking initial satisfaction
lola: processed formula: FIREABLE(ti_d3_n2_d3_n1_1_3_3_3)
lola: processed formula length: 32
lola: 1 rewrites
lola: formula mentions 0 of 2457 places; total mentions: 0
lola: closed formula file HypercubeGrid-PT-C4K3P3B12-CTLFireability.task
lola: processed formula with 0 atomic propositions
lola: RUNNING
lola: SUBRESULT
lola: result: no
lola: produced by: preprocessing
lola: The net violates the given property already in its initial state.
lola: 0 markings, 0 edges
lola: ========================================
lola: subprocess 9 will run for 495 seconds at most (--localtimelimit=-1)
lola: ========================================
lola: ...considering subproblem: A (G (NOT FIREABLE(tt_d3_n1_1_3_1_3)))
lola: ========================================
lola: SUBTASK
lola: checking invariance
lola: Planning: workflow for reachability check: search (--findpath=off)
lola: STORE
lola: using a bit-perfect encoder (--encoder=bit)
lola: using 6044 bytes per marking, with 0 unused bits
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: RUNNING
lola: SUBRESULT
lola: result: no
lola: produced by: state space
lola: The predicate is not invariant.
lola: 2 markings, 1 edges
lola: ========================================
lola: subprocess 10 will run for 578 seconds at most (--localtimelimit=-1)
lola: ========================================
lola: ...considering subproblem: E (F (A (F (FIREABLE(ti_d4_n1_d3_n2_3_3_3_1)))))
lola: ========================================
lola: SUBTASK
lola: checking CTL
lola: processed formula: E(TRUE U A(TRUE U FIREABLE(ti_d4_n1_d3_n2_3_3_3_1)))
lola: processed formula length: 52
lola: 3 rewrites
lola: formula mentions 0 of 2457 places; total mentions: 0
lola: closed formula file HypercubeGrid-PT-C4K3P3B12-CTLFireability.task
lola: STORE
lola: using a bit-perfect encoder (--encoder=bit)
lola: using 6044 bytes per marking, with 0 unused bits
lola: using a prefix tree store (--store=prefix)
lola: Using CTL preserving stubborn sets
lola: RUNNING
lola: CTL formula contains 2 significant temporal operators and needs 9 bytes of payload
lola: Ignoring fairness constraints (--fair).
lola: 177180 markings, 575928 edges, 3689329903141912576 markings/sec, 0 secs
lola: 362583 markings, 1179295 edges, 37081 markings/sec, 5 secs
lola: 551457 markings, 1793989 edges, 37775 markings/sec, 10 secs
lola: 736052 markings, 2394551 edges, 36919 markings/sec, 15 secs
lola: 916539 markings, 2981161 edges, 36097 markings/sec, 20 secs
lola: 1094740 markings, 3579345 edges, 35640 markings/sec, 25 secs
lola: 1278211 markings, 4190532 edges, 36694 markings/sec, 30 secs
lola: 1498370 markings, 4904344 edges, 44032 markings/sec, 35 secs
lola: 1736899 markings, 5683399 edges, 47706 markings/sec, 40 secs
lola: 1972489 markings, 6459176 edges, 47118 markings/sec, 45 secs
lola: 2183669 markings, 7160404 edges, 42236 markings/sec, 50 secs
lola: 2408596 markings, 7911893 edges, 44985 markings/sec, 55 secs
lola: 2632873 markings, 8660521 edges, 44855 markings/sec, 60 secs
lola: 2863558 markings, 9426582 edges, 46137 markings/sec, 65 secs
lola: 3074267 markings, 10127494 edges, 42142 markings/sec, 70 secs
lola: 3263343 markings, 10757968 edges, 37815 markings/sec, 75 secs
lola: 3484981 markings, 11494732 edges, 44328 markings/sec, 80 secs
lola: 3708054 markings, 12238343 edges, 44615 markings/sec, 85 secs
lola: 3929136 markings, 12971730 edges, 44216 markings/sec, 90 secs
lola: 4149606 markings, 13708428 edges, 44094 markings/sec, 95 secs
lola: 4378722 markings, 14472778 edges, 45823 markings/sec, 100 secs
lola: 4614997 markings, 15259047 edges, 47255 markings/sec, 105 secs
lola: 4858183 markings, 16069512 edges, 48637 markings/sec, 110 secs
lola: 5098787 markings, 16868013 edges, 48121 markings/sec, 115 secs
lola: 5340123 markings, 17669616 edges, 48267 markings/sec, 120 secs
lola: 5584065 markings, 18480043 edges, 48788 markings/sec, 125 secs
lola: 5731663 markings, 18970358 edges, 29520 markings/sec, 130 secs
lola: 5731791 markings, 18970790 edges, 26 markings/sec, 135 secs
lola: 5732452 markings, 18972982 edges, 132 markings/sec, 140 secs
lola: 5732843 markings, 18974286 edges, 78 markings/sec, 145 secs
lola: 5732975 markings, 18974728 edges, 26 markings/sec, 150 secs
lola: 5732998 markings, 18974764 edges, 5 markings/sec, 155 secs
lola: 5733243 markings, 18975608 edges, 49 markings/sec, 160 secs
lola: Child process aborted or communication problem between parent and child process
lola: subprocess 11 will run for 654 seconds at most (--localtimelimit=-1)
lola: ========================================
lola: ...considering subproblem: E ((NOT FIREABLE(ti_d3_n2_d1_n2_2_3_3_3) U NOT FIREABLE(ti_d2_n2_d4_n2_2_1_2_1)))
lola: ========================================
lola: SUBTASK
lola: checking CTL
lola: processed formula: E(NOT FIREABLE(ti_d3_n2_d1_n2_2_3_3_3) U NOT FIREABLE(ti_d2_n2_d4_n2_2_1_2_1))
lola: processed formula length: 78
lola: 2 rewrites
lola: formula mentions 0 of 2457 places; total mentions: 0
lola: closed formula file HypercubeGrid-PT-C4K3P3B12-CTLFireability.task
lola: STORE
lola: using a bit-perfect encoder (--encoder=bit)
lola: using 6044 bytes per marking, with 0 unused bits
lola: using a prefix tree store (--store=prefix)
lola: Using CTL preserving stubborn sets
lola: RUNNING
lola: CTL formula contains 1 significant temporal operators and needs 5 bytes of payload
lola: Ignoring fairness constraints (--fair).
lola: SUBRESULT
lola: result: yes
lola: produced by: CTL model checker
lola: The net satisfies the given formula.
lola: 1 markings, 0 edges
lola: SUBRESULT
lola: result: unknown
lola: The Boolean predicate may be true or false.
lola: ========================================
lola: subprocess 9 will run for 467 seconds at most (--localtimelimit=-1)
lola: ========================================
lola: ========================================
lola: ...considering subproblem: NOT((((FIREABLE(to_d1_n1_2_3_1_2) AND A (X (FIREABLE(ti_d2_n2_d1_n1_3_1_2_2)))) OR (NOT FIREABLE(ti_d3_n1_d3_n2_1_2_2_2) AND NOT FIREABLE(ti_d2_n2_d4_n1_1_2_2_3) AND (NOT FIREABLE(ti_d3_n1_d2_n2_2_3_2_1) OR NOT FIREABLE(ti_d3_n1_d3_n2_1_1_2_1)))) AND E (F (FIREABLE(ti_d2_n2_d4_n1_3_3_2_1)))))
lola: ========================================
lola: SUBTASK
lola: checking a Boolean combination of formulas
lola: RUNNING
lola: subprocess 9 will run for 467 seconds at most (--localtimelimit=-1)
lola: ========================================
lola: ...considering subproblem: NOT FIREABLE(to_d1_n1_2_3_1_2)
lola: ========================================
lola: SUBTASK
lola: checking initial satisfaction
lola: processed formula: NOT FIREABLE(to_d1_n1_2_3_1_2)
lola: processed formula length: 30
lola: 11 rewrites
lola: formula mentions 0 of 2457 places; total mentions: 0
lola: closed formula file HypercubeGrid-PT-C4K3P3B12-CTLFireability.task
lola: processed formula with 0 atomic propositions
lola: RUNNING
lola: SUBRESULT
lola: result: no
lola: produced by: preprocessing
lola: The net violates the given property already in its initial state.
lola: 0 markings, 0 edges
lola: ========================================
lola: subprocess 10 will run for 545 seconds at most (--localtimelimit=-1)
lola: ========================================
lola: ...considering subproblem: E (X (NOT FIREABLE(ti_d2_n2_d1_n1_3_1_2_2)))
lola: ========================================
lola: SUBTASK
lola: checking CTL
lola: processed formula: EX(NOT FIREABLE(ti_d2_n2_d1_n1_3_1_2_2))
lola: processed formula length: 40
lola: 12 rewrites
lola: formula mentions 0 of 2457 places; total mentions: 0
lola: closed formula file HypercubeGrid-PT-C4K3P3B12-CTLFireability.task
lola: STORE
lola: using a bit-perfect encoder (--encoder=bit)
lola: using 6044 bytes per marking, with 0 unused bits
lola: using a prefix tree store (--store=prefix)
lola: Formula contains EX or AX operators, stubborn sets not applicable
lola: RUNNING
lola: CTL formula contains 0 significant temporal operators and needs 0 bytes of payload
lola: Ignoring fairness constraints (--fair).
lola: SUBRESULT
lola: result: yes
lola: produced by: CTL model checker
lola: The net satisfies the given formula.
lola: 0 markings, 0 edges
lola: ========================================
lola: subprocess 11 will run for 654 seconds at most (--localtimelimit=-1)
lola: ========================================
lola: ...considering subproblem: (FIREABLE(ti_d3_n1_d3_n2_1_2_2_2) OR FIREABLE(ti_d2_n2_d4_n1_1_2_2_3) OR (FIREABLE(ti_d3_n1_d2_n2_2_3_2_1) AND FIREABLE(ti_d3_n1_d3_n2_1_1_2_1)))
lola: ========================================
lola: SUBTASK
lola: checking initial satisfaction
lola: processed formula: (FIREABLE(ti_d3_n1_d3_n2_1_2_2_2) OR FIREABLE(ti_d2_n2_d4_n1_1_2_2_3) OR (FIREABLE(ti_d3_n1_d2_n2_2_3_2_1) AND FIREABLE(ti_d3_n1_d3_n2_1_1_2_1)))
lola: processed formula length: 147
lola: 11 rewrites
lola: formula mentions 0 of 2457 places; total mentions: 0
lola: closed formula file HypercubeGrid-PT-C4K3P3B12-CTLFireability.task
lola: processed formula with 0 atomic propositions
lola: RUNNING
lola: SUBRESULT
lola: result: no
lola: produced by: preprocessing
lola: The net violates the given property already in its initial state.
lola: 0 markings, 0 edges
lola: ========================================
lola: subprocess 12 will run for 817 seconds at most (--localtimelimit=-1)
lola: ========================================
lola: ...considering subproblem: A (G (NOT FIREABLE(ti_d2_n2_d4_n1_3_3_2_1)))
lola: ========================================
lola: SUBTASK
lola: checking invariance
lola: Planning: workflow for reachability check: search (--findpath=off)
lola: STORE
lola: using a bit-perfect encoder (--encoder=bit)
lola: using 6044 bytes per marking, with 0 unused bits
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: RUNNING
lola: SUBRESULT
lola: result: no
lola: produced by: state space
lola: The predicate is not invariant.
lola: 3 markings, 2 edges
lola: ========================================
lola: SUBRESULT
lola: result: no
lola: The Boolean predicate is false.
lola: ========================================
lola: subprocess 10 will run for 545 seconds at most (--localtimelimit=-1)
lola: ========================================
lola: ...considering subproblem: A ((FIREABLE(ti_d2_n2_d4_n1_2_3_2_1) U E (F (FIREABLE(ti_d4_n2_d4_n1_1_3_3_3)))))
lola: ========================================
lola: SUBTASK
lola: checking CTL
lola: processed formula: A(FIREABLE(ti_d2_n2_d4_n1_2_3_2_1) U E(TRUE U FIREABLE(ti_d4_n2_d4_n1_1_3_3_3)))
lola: processed formula length: 80
lola: 2 rewrites
lola: formula mentions 0 of 2457 places; total mentions: 0
lola: closed formula file HypercubeGrid-PT-C4K3P3B12-CTLFireability.task
lola: STORE
lola: using a bit-perfect encoder (--encoder=bit)
lola: using 6044 bytes per marking, with 0 unused bits
lola: using a prefix tree store (--store=prefix)
lola: Using CTL preserving stubborn sets
lola: RUNNING
lola: CTL formula contains 2 significant temporal operators and needs 9 bytes of payload
lola: Ignoring fairness constraints (--fair).
lola: 292855 markings, 366661 edges, 58571 markings/sec, 0 secs
lola: 615129 markings, 770934 edges, 64455 markings/sec, 5 secs
lola: 937867 markings, 1177593 edges, 64548 markings/sec, 10 secs
lola: 1256802 markings, 1607287 edges, 63787 markings/sec, 15 secs
lola: 1661345 markings, 2113155 edges, 80909 markings/sec, 20 secs
lola: 2050298 markings, 2613526 edges, 77791 markings/sec, 25 secs
lola: 2399626 markings, 3069448 edges, 69866 markings/sec, 30 secs
lola: 2802574 markings, 3592398 edges, 80590 markings/sec, 35 secs
lola: 3214260 markings, 4127031 edges, 82337 markings/sec, 40 secs
lola: 3619828 markings, 4654229 edges, 81114 markings/sec, 45 secs
lola: 4037229 markings, 5196466 edges, 83480 markings/sec, 50 secs
lola: 4496078 markings, 5791095 edges, 91770 markings/sec, 55 secs
lola: 4927027 markings, 6350755 edges, 86190 markings/sec, 60 secs
lola: 5355630 markings, 6911617 edges, 85721 markings/sec, 65 secs
lola: 5386979 markings, 6953166 edges, 6270 markings/sec, 70 secs
lola: Child process aborted or communication problem between parent and child process
terminate called after throwing an instance of 'std::runtime_error'
what(): parse error at position 0: unexpected character, last read: '
'
Aborted (core dumped)
FORMULA HypercubeGrid-PT-C4K3P3B12-CTLFireability-0 CANNOT_COMPUTE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL USE_NUPN
FORMULA HypercubeGrid-PT-C4K3P3B12-CTLFireability-1 CANNOT_COMPUTE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL USE_NUPN
FORMULA HypercubeGrid-PT-C4K3P3B12-CTLFireability-2 CANNOT_COMPUTE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL USE_NUPN
FORMULA HypercubeGrid-PT-C4K3P3B12-CTLFireability-3 CANNOT_COMPUTE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL USE_NUPN
FORMULA HypercubeGrid-PT-C4K3P3B12-CTLFireability-4 CANNOT_COMPUTE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL USE_NUPN
FORMULA HypercubeGrid-PT-C4K3P3B12-CTLFireability-5 CANNOT_COMPUTE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL USE_NUPN
FORMULA HypercubeGrid-PT-C4K3P3B12-CTLFireability-6 CANNOT_COMPUTE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL USE_NUPN
FORMULA HypercubeGrid-PT-C4K3P3B12-CTLFireability-7 CANNOT_COMPUTE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL USE_NUPN
FORMULA HypercubeGrid-PT-C4K3P3B12-CTLFireability-8 CANNOT_COMPUTE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL USE_NUPN
FORMULA HypercubeGrid-PT-C4K3P3B12-CTLFireability-9 CANNOT_COMPUTE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL USE_NUPN
FORMULA HypercubeGrid-PT-C4K3P3B12-CTLFireability-10 CANNOT_COMPUTE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL USE_NUPN
FORMULA HypercubeGrid-PT-C4K3P3B12-CTLFireability-11 CANNOT_COMPUTE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL USE_NUPN
FORMULA HypercubeGrid-PT-C4K3P3B12-CTLFireability-12 CANNOT_COMPUTE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL USE_NUPN
FORMULA HypercubeGrid-PT-C4K3P3B12-CTLFireability-13 CANNOT_COMPUTE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL USE_NUPN
FORMULA HypercubeGrid-PT-C4K3P3B12-CTLFireability-14 CANNOT_COMPUTE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL USE_NUPN
FORMULA HypercubeGrid-PT-C4K3P3B12-CTLFireability-15 CANNOT_COMPUTE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL USE_NUPN
----- Kill lola and sara stderr -----
----- Kill lola and sara stdout -----
----- Finished stderr -----
----- Finished stdout -----

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="HypercubeGrid-PT-C4K3P3B12"
export BK_EXAMINATION="CTLFireability"
export BK_TOOL="irma4mcc-full"
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/HypercubeGrid-PT-C4K3P3B12.tgz
mv HypercubeGrid-PT-C4K3P3B12 execution
cd execution
pwd
ls -lh

# this is for BenchKit: explicit launching of the test
echo "====================================================================="
echo " Generated by BenchKit 2-3637"
echo " Executing tool irma4mcc-full"
echo " Input is HypercubeGrid-PT-C4K3P3B12, examination is CTLFireability"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r102-smll-152658632900116"
echo "====================================================================="
echo
echo "--------------------"
echo "content from stdout:"
echo
echo "=== Data for post analysis generated by BenchKit (invocation template)"
echo
if [ "CTLFireability" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "CTLFireability" != "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 "CTLFireability.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property CTLFireability.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "CTLFireability.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 '' CTLFireability.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 ;