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.r233-tall-167856418400122.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 ltsminxred
Input is IOTPpurchase-PT-C05M04P03D02, examination is CTLFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r233-tall-167856418400122
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 544K
-rw-r--r-- 1 mcc users 9.7K Feb 25 15:15 CTLCardinality.txt
-rw-r--r-- 1 mcc users 95K Feb 25 15:15 CTLCardinality.xml
-rw-r--r-- 1 mcc users 8.2K Feb 25 15:14 CTLFireability.txt
-rw-r--r-- 1 mcc users 60K Feb 25 15:14 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Jan 29 11:40 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.8K Jan 29 11:40 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 4.0K Feb 25 16:17 LTLCardinality.txt
-rw-r--r-- 1 mcc users 25K Feb 25 16:17 LTLCardinality.xml
-rw-r--r-- 1 mcc users 3.4K Feb 25 16:17 LTLFireability.txt
-rw-r--r-- 1 mcc users 20K Feb 25 16:17 LTLFireability.xml
-rw-r--r-- 1 mcc users 14K Feb 25 15:16 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 123K Feb 25 15:16 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 9.7K Feb 25 15:16 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 59K Feb 25 15:16 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.9K Feb 25 16:17 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.9K Feb 25 16:17 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 5 18:22 equiv_col
-rw-r--r-- 1 mcc users 13 Mar 5 18:22 instance
-rw-r--r-- 1 mcc users 6 Mar 5 18:22 iscolored
-rwxr-xr-x 1 mcc users 60K 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 IOTPpurchase-PT-C05M04P03D02-CTLFireability-00
FORMULA_NAME IOTPpurchase-PT-C05M04P03D02-CTLFireability-01
FORMULA_NAME IOTPpurchase-PT-C05M04P03D02-CTLFireability-02
FORMULA_NAME IOTPpurchase-PT-C05M04P03D02-CTLFireability-03
FORMULA_NAME IOTPpurchase-PT-C05M04P03D02-CTLFireability-04
FORMULA_NAME IOTPpurchase-PT-C05M04P03D02-CTLFireability-05
FORMULA_NAME IOTPpurchase-PT-C05M04P03D02-CTLFireability-06
FORMULA_NAME IOTPpurchase-PT-C05M04P03D02-CTLFireability-07
FORMULA_NAME IOTPpurchase-PT-C05M04P03D02-CTLFireability-08
FORMULA_NAME IOTPpurchase-PT-C05M04P03D02-CTLFireability-09
FORMULA_NAME IOTPpurchase-PT-C05M04P03D02-CTLFireability-10
FORMULA_NAME IOTPpurchase-PT-C05M04P03D02-CTLFireability-11
FORMULA_NAME IOTPpurchase-PT-C05M04P03D02-CTLFireability-12
FORMULA_NAME IOTPpurchase-PT-C05M04P03D02-CTLFireability-13
FORMULA_NAME IOTPpurchase-PT-C05M04P03D02-CTLFireability-14
FORMULA_NAME IOTPpurchase-PT-C05M04P03D02-CTLFireability-15

=== Now, execution of the tool begins

BK_START 1679451157964

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=ltsminxred
BK_EXAMINATION=CTLFireability
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=IOTPpurchase-PT-C05M04P03D02
Applying reductions before tool ltsmin
Invoking reducer
Running Version 202303021504
[2023-03-22 02:12:39] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, CTLFireability, -timeout, 360, -rebuildPNML]
[2023-03-22 02:12:39] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2023-03-22 02:12:39] [INFO ] Load time of PNML (sax parser for PT used): 36 ms
[2023-03-22 02:12:39] [INFO ] Transformed 111 places.
[2023-03-22 02:12:39] [INFO ] Transformed 45 transitions.
[2023-03-22 02:12:39] [INFO ] Parsed PT model containing 111 places and 45 transitions and 224 arcs in 98 ms.
Parsed 16 properties from file /home/mcc/execution/CTLFireability.xml in 11 ms.
Support contains 99 out of 111 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 111/111 places, 45/45 transitions.
Ensure Unique test removed 7 places
Iterating post reduction 0 with 7 rules applied. Total rules applied 7 place count 104 transition count 45
Applied a total of 7 rules in 11 ms. Remains 104 /111 variables (removed 7) and now considering 45/45 (removed 0) transitions.
// Phase 1: matrix 45 rows 104 cols
[2023-03-22 02:12:39] [INFO ] Computed 60 place invariants in 15 ms
[2023-03-22 02:12:40] [INFO ] Implicit Places using invariants in 438 ms returned []
[2023-03-22 02:12:40] [INFO ] Invariant cache hit.
[2023-03-22 02:12:40] [INFO ] State equation strengthened by 1 read => feed constraints.
[2023-03-22 02:12:40] [INFO ] Implicit Places using invariants and state equation in 77 ms returned []
Implicit Place search using SMT with State Equation took 539 ms to find 0 implicit places.
[2023-03-22 02:12:40] [INFO ] Invariant cache hit.
[2023-03-22 02:12:40] [INFO ] Dead Transitions using invariants and state equation in 67 ms found 0 transitions.
Starting structural reductions in LTL mode, iteration 1 : 104/111 places, 45/45 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 620 ms. Remains : 104/111 places, 45/45 transitions.
Support contains 99 out of 104 places after structural reductions.
[2023-03-22 02:12:40] [INFO ] Flatten gal took : 25 ms
[2023-03-22 02:12:40] [INFO ] Flatten gal took : 10 ms
[2023-03-22 02:12:40] [INFO ] Input system was already deterministic with 45 transitions.
Finished random walk after 598 steps, including 0 resets, run visited all 62 properties in 67 ms. (steps per millisecond=8 )
[2023-03-22 02:12:40] [INFO ] Flatten gal took : 6 ms
[2023-03-22 02:12:40] [INFO ] Flatten gal took : 8 ms
[2023-03-22 02:12:40] [INFO ] Input system was already deterministic with 45 transitions.
Computed a total of 0 stabilizing places and 0 stable transitions
Starting structural reductions in LTL mode, iteration 0 : 104/104 places, 45/45 transitions.
Ensure Unique test removed 29 places
Discarding 7 places :
Implicit places reduction removed 7 places
Iterating post reduction 0 with 36 rules applied. Total rules applied 36 place count 68 transition count 45
Applied a total of 36 rules in 5 ms. Remains 68 /104 variables (removed 36) and now considering 45/45 (removed 0) transitions.
Finished structural reductions in LTL mode , in 1 iterations and 5 ms. Remains : 68/104 places, 45/45 transitions.
[2023-03-22 02:12:40] [INFO ] Flatten gal took : 3 ms
[2023-03-22 02:12:40] [INFO ] Flatten gal took : 3 ms
[2023-03-22 02:12:40] [INFO ] Input system was already deterministic with 45 transitions.
Starting structural reductions in LTL mode, iteration 0 : 104/104 places, 45/45 transitions.
Ensure Unique test removed 26 places
Discarding 8 places :
Implicit places reduction removed 8 places
Iterating post reduction 0 with 34 rules applied. Total rules applied 34 place count 70 transition count 45
Applied a total of 34 rules in 4 ms. Remains 70 /104 variables (removed 34) and now considering 45/45 (removed 0) transitions.
Finished structural reductions in LTL mode , in 1 iterations and 4 ms. Remains : 70/104 places, 45/45 transitions.
[2023-03-22 02:12:40] [INFO ] Flatten gal took : 3 ms
[2023-03-22 02:12:40] [INFO ] Flatten gal took : 3 ms
[2023-03-22 02:12:40] [INFO ] Input system was already deterministic with 45 transitions.
Starting structural reductions in LTL mode, iteration 0 : 104/104 places, 45/45 transitions.
Ensure Unique test removed 19 places
Discarding 5 places :
Implicit places reduction removed 5 places
Iterating post reduction 0 with 24 rules applied. Total rules applied 24 place count 80 transition count 45
Applied a total of 24 rules in 3 ms. Remains 80 /104 variables (removed 24) and now considering 45/45 (removed 0) transitions.
Finished structural reductions in LTL mode , in 1 iterations and 3 ms. Remains : 80/104 places, 45/45 transitions.
[2023-03-22 02:12:40] [INFO ] Flatten gal took : 3 ms
[2023-03-22 02:12:40] [INFO ] Flatten gal took : 3 ms
[2023-03-22 02:12:40] [INFO ] Input system was already deterministic with 45 transitions.
Starting structural reductions in SI_CTL mode, iteration 0 : 104/104 places, 45/45 transitions.
Ensure Unique test removed 26 places
Discarding 7 places :
Implicit places reduction removed 7 places
Drop transitions removed 6 transitions
Trivial Post-agglo rules discarded 6 transitions
Performed 6 trivial Post agglomeration. Transition count delta: 6
Iterating post reduction 0 with 13 rules applied. Total rules applied 13 place count 71 transition count 39
Reduce places removed 9 places and 0 transitions.
Drop transitions removed 5 transitions
Trivial Post-agglo rules discarded 5 transitions
Performed 5 trivial Post agglomeration. Transition count delta: 5
Iterating post reduction 1 with 14 rules applied. Total rules applied 27 place count 62 transition count 34
Reduce places removed 5 places and 0 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Iterating post reduction 2 with 6 rules applied. Total rules applied 33 place count 57 transition count 33
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 3 with 1 rules applied. Total rules applied 34 place count 56 transition count 33
Performed 10 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 4 with 10 Pre rules applied. Total rules applied 34 place count 56 transition count 23
Deduced a syphon composed of 10 places in 0 ms
Ensure Unique test removed 2 places
Reduce places removed 16 places and 0 transitions.
Iterating global reduction 4 with 26 rules applied. Total rules applied 60 place count 40 transition count 23
Discarding 1 places :
Implicit places reduction removed 1 places
Iterating post reduction 4 with 1 rules applied. Total rules applied 61 place count 39 transition count 23
Performed 3 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 5 with 3 Pre rules applied. Total rules applied 61 place count 39 transition count 20
Deduced a syphon composed of 3 places in 0 ms
Reduce places removed 4 places and 0 transitions.
Iterating global reduction 5 with 7 rules applied. Total rules applied 68 place count 35 transition count 20
Performed 5 Post agglomeration using F-continuation condition.Transition count delta: 5
Deduced a syphon composed of 5 places in 0 ms
Reduce places removed 7 places and 0 transitions.
Iterating global reduction 5 with 12 rules applied. Total rules applied 80 place count 28 transition count 15
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 5 with 2 rules applied. Total rules applied 82 place count 27 transition count 14
Applied a total of 82 rules in 16 ms. Remains 27 /104 variables (removed 77) and now considering 14/45 (removed 31) transitions.
Finished structural reductions in SI_CTL mode , in 1 iterations and 16 ms. Remains : 27/104 places, 14/45 transitions.
[2023-03-22 02:12:40] [INFO ] Flatten gal took : 1 ms
[2023-03-22 02:12:40] [INFO ] Flatten gal took : 1 ms
[2023-03-22 02:12:40] [INFO ] Input system was already deterministic with 14 transitions.
Starting structural reductions in LTL mode, iteration 0 : 104/104 places, 45/45 transitions.
Ensure Unique test removed 24 places
Discarding 8 places :
Implicit places reduction removed 8 places
Iterating post reduction 0 with 32 rules applied. Total rules applied 32 place count 72 transition count 45
Applied a total of 32 rules in 3 ms. Remains 72 /104 variables (removed 32) and now considering 45/45 (removed 0) transitions.
Finished structural reductions in LTL mode , in 1 iterations and 3 ms. Remains : 72/104 places, 45/45 transitions.
[2023-03-22 02:12:40] [INFO ] Flatten gal took : 3 ms
[2023-03-22 02:12:40] [INFO ] Flatten gal took : 3 ms
[2023-03-22 02:12:40] [INFO ] Input system was already deterministic with 45 transitions.
Starting structural reductions in LTL mode, iteration 0 : 104/104 places, 45/45 transitions.
Ensure Unique test removed 18 places
Discarding 4 places :
Implicit places reduction removed 4 places
Iterating post reduction 0 with 22 rules applied. Total rules applied 22 place count 82 transition count 45
Applied a total of 22 rules in 2 ms. Remains 82 /104 variables (removed 22) and now considering 45/45 (removed 0) transitions.
Finished structural reductions in LTL mode , in 1 iterations and 2 ms. Remains : 82/104 places, 45/45 transitions.
[2023-03-22 02:12:40] [INFO ] Flatten gal took : 4 ms
[2023-03-22 02:12:40] [INFO ] Flatten gal took : 3 ms
[2023-03-22 02:12:40] [INFO ] Input system was already deterministic with 45 transitions.
Starting structural reductions in SI_CTL mode, iteration 0 : 104/104 places, 45/45 transitions.
Ensure Unique test removed 29 places
Discarding 8 places :
Implicit places reduction removed 8 places
Drop transitions removed 6 transitions
Trivial Post-agglo rules discarded 6 transitions
Performed 6 trivial Post agglomeration. Transition count delta: 6
Iterating post reduction 0 with 14 rules applied. Total rules applied 14 place count 67 transition count 39
Reduce places removed 9 places and 0 transitions.
Drop transitions removed 5 transitions
Trivial Post-agglo rules discarded 5 transitions
Performed 5 trivial Post agglomeration. Transition count delta: 5
Iterating post reduction 1 with 14 rules applied. Total rules applied 28 place count 58 transition count 34
Reduce places removed 5 places and 0 transitions.
Iterating post reduction 2 with 5 rules applied. Total rules applied 33 place count 53 transition count 34
Performed 12 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 12 Pre rules applied. Total rules applied 33 place count 53 transition count 22
Deduced a syphon composed of 12 places in 0 ms
Ensure Unique test removed 3 places
Reduce places removed 19 places and 0 transitions.
Iterating global reduction 3 with 31 rules applied. Total rules applied 64 place count 34 transition count 22
Performed 3 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 3 Pre rules applied. Total rules applied 64 place count 34 transition count 19
Deduced a syphon composed of 3 places in 0 ms
Reduce places removed 3 places and 0 transitions.
Iterating global reduction 3 with 6 rules applied. Total rules applied 70 place count 31 transition count 19
Performed 8 Post agglomeration using F-continuation condition.Transition count delta: 8
Deduced a syphon composed of 8 places in 0 ms
Reduce places removed 12 places and 0 transitions.
Iterating global reduction 3 with 20 rules applied. Total rules applied 90 place count 19 transition count 11
Discarding 2 places :
Implicit places reduction removed 2 places
Iterating post reduction 3 with 2 rules applied. Total rules applied 92 place count 17 transition count 11
Performed 2 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 4 with 2 Pre rules applied. Total rules applied 92 place count 17 transition count 9
Deduced a syphon composed of 2 places in 0 ms
Reduce places removed 3 places and 0 transitions.
Iterating global reduction 4 with 5 rules applied. Total rules applied 97 place count 14 transition count 9
Drop transitions removed 1 transitions
Trivial Post-agglo rules discarded 1 transitions
Performed 1 trivial Post agglomeration. Transition count delta: 1
Iterating post reduction 4 with 1 rules applied. Total rules applied 98 place count 14 transition count 8
Reduce places removed 2 places and 0 transitions.
Drop transitions removed 1 transitions
Trivial Post-agglo rules discarded 1 transitions
Performed 1 trivial Post agglomeration. Transition count delta: 1
Iterating post reduction 5 with 3 rules applied. Total rules applied 101 place count 12 transition count 7
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 6 with 1 rules applied. Total rules applied 102 place count 11 transition count 7
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 7 with 2 rules applied. Total rules applied 104 place count 10 transition count 6
Applied a total of 104 rules in 11 ms. Remains 10 /104 variables (removed 94) and now considering 6/45 (removed 39) transitions.
Finished structural reductions in SI_CTL mode , in 1 iterations and 12 ms. Remains : 10/104 places, 6/45 transitions.
[2023-03-22 02:12:40] [INFO ] Flatten gal took : 1 ms
[2023-03-22 02:12:40] [INFO ] Flatten gal took : 1 ms
[2023-03-22 02:12:40] [INFO ] Input system was already deterministic with 6 transitions.
Starting structural reductions in LTL mode, iteration 0 : 104/104 places, 45/45 transitions.
Ensure Unique test removed 26 places
Discarding 8 places :
Implicit places reduction removed 8 places
Iterating post reduction 0 with 34 rules applied. Total rules applied 34 place count 70 transition count 45
Applied a total of 34 rules in 3 ms. Remains 70 /104 variables (removed 34) and now considering 45/45 (removed 0) transitions.
Finished structural reductions in LTL mode , in 1 iterations and 3 ms. Remains : 70/104 places, 45/45 transitions.
[2023-03-22 02:12:40] [INFO ] Flatten gal took : 2 ms
[2023-03-22 02:12:40] [INFO ] Flatten gal took : 2 ms
[2023-03-22 02:12:40] [INFO ] Input system was already deterministic with 45 transitions.
Starting structural reductions in LTL mode, iteration 0 : 104/104 places, 45/45 transitions.
Ensure Unique test removed 26 places
Discarding 6 places :
Implicit places reduction removed 6 places
Iterating post reduction 0 with 32 rules applied. Total rules applied 32 place count 72 transition count 45
Applied a total of 32 rules in 2 ms. Remains 72 /104 variables (removed 32) and now considering 45/45 (removed 0) transitions.
Finished structural reductions in LTL mode , in 1 iterations and 2 ms. Remains : 72/104 places, 45/45 transitions.
[2023-03-22 02:12:40] [INFO ] Flatten gal took : 2 ms
[2023-03-22 02:12:40] [INFO ] Flatten gal took : 3 ms
[2023-03-22 02:12:40] [INFO ] Input system was already deterministic with 45 transitions.
Starting structural reductions in LTL mode, iteration 0 : 104/104 places, 45/45 transitions.
Ensure Unique test removed 20 places
Discarding 4 places :
Implicit places reduction removed 4 places
Iterating post reduction 0 with 24 rules applied. Total rules applied 24 place count 80 transition count 45
Applied a total of 24 rules in 2 ms. Remains 80 /104 variables (removed 24) and now considering 45/45 (removed 0) transitions.
Finished structural reductions in LTL mode , in 1 iterations and 2 ms. Remains : 80/104 places, 45/45 transitions.
[2023-03-22 02:12:40] [INFO ] Flatten gal took : 2 ms
[2023-03-22 02:12:40] [INFO ] Flatten gal took : 3 ms
[2023-03-22 02:12:41] [INFO ] Input system was already deterministic with 45 transitions.
Starting structural reductions in SI_CTL mode, iteration 0 : 104/104 places, 45/45 transitions.
Ensure Unique test removed 18 places
Discarding 7 places :
Implicit places reduction removed 7 places
Drop transitions removed 3 transitions
Trivial Post-agglo rules discarded 3 transitions
Performed 3 trivial Post agglomeration. Transition count delta: 3
Iterating post reduction 0 with 10 rules applied. Total rules applied 10 place count 79 transition count 42
Reduce places removed 6 places and 0 transitions.
Drop transitions removed 4 transitions
Trivial Post-agglo rules discarded 4 transitions
Performed 4 trivial Post agglomeration. Transition count delta: 4
Iterating post reduction 1 with 10 rules applied. Total rules applied 20 place count 73 transition count 38
Reduce places removed 4 places and 0 transitions.
Performed 2 Post agglomeration using F-continuation condition.Transition count delta: 2
Iterating post reduction 2 with 6 rules applied. Total rules applied 26 place count 69 transition count 36
Reduce places removed 2 places and 0 transitions.
Iterating post reduction 3 with 2 rules applied. Total rules applied 28 place count 67 transition count 36
Performed 7 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 4 with 7 Pre rules applied. Total rules applied 28 place count 67 transition count 29
Deduced a syphon composed of 7 places in 0 ms
Ensure Unique test removed 1 places
Reduce places removed 12 places and 0 transitions.
Iterating global reduction 4 with 19 rules applied. Total rules applied 47 place count 55 transition count 29
Performed 2 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 4 with 2 Pre rules applied. Total rules applied 47 place count 55 transition count 27
Deduced a syphon composed of 2 places in 0 ms
Reduce places removed 2 places and 0 transitions.
Iterating global reduction 4 with 4 rules applied. Total rules applied 51 place count 53 transition count 27
Performed 4 Post agglomeration using F-continuation condition.Transition count delta: 4
Deduced a syphon composed of 4 places in 1 ms
Reduce places removed 5 places and 0 transitions.
Iterating global reduction 4 with 9 rules applied. Total rules applied 60 place count 48 transition count 23
Applied a total of 60 rules in 12 ms. Remains 48 /104 variables (removed 56) and now considering 23/45 (removed 22) transitions.
Finished structural reductions in SI_CTL mode , in 1 iterations and 12 ms. Remains : 48/104 places, 23/45 transitions.
[2023-03-22 02:12:41] [INFO ] Flatten gal took : 2 ms
[2023-03-22 02:12:41] [INFO ] Flatten gal took : 2 ms
[2023-03-22 02:12:41] [INFO ] Input system was already deterministic with 23 transitions.
Starting structural reductions in LTL mode, iteration 0 : 104/104 places, 45/45 transitions.
Ensure Unique test removed 11 places
Discarding 5 places :
Implicit places reduction removed 5 places
Iterating post reduction 0 with 16 rules applied. Total rules applied 16 place count 88 transition count 45
Applied a total of 16 rules in 2 ms. Remains 88 /104 variables (removed 16) and now considering 45/45 (removed 0) transitions.
Finished structural reductions in LTL mode , in 1 iterations and 2 ms. Remains : 88/104 places, 45/45 transitions.
[2023-03-22 02:12:41] [INFO ] Flatten gal took : 4 ms
[2023-03-22 02:12:41] [INFO ] Flatten gal took : 4 ms
[2023-03-22 02:12:41] [INFO ] Input system was already deterministic with 45 transitions.
Starting structural reductions in LTL mode, iteration 0 : 104/104 places, 45/45 transitions.
Ensure Unique test removed 29 places
Discarding 8 places :
Implicit places reduction removed 8 places
Iterating post reduction 0 with 37 rules applied. Total rules applied 37 place count 67 transition count 45
Applied a total of 37 rules in 3 ms. Remains 67 /104 variables (removed 37) and now considering 45/45 (removed 0) transitions.
Finished structural reductions in LTL mode , in 1 iterations and 3 ms. Remains : 67/104 places, 45/45 transitions.
[2023-03-22 02:12:41] [INFO ] Flatten gal took : 2 ms
[2023-03-22 02:12:41] [INFO ] Flatten gal took : 2 ms
[2023-03-22 02:12:41] [INFO ] Input system was already deterministic with 45 transitions.
Starting structural reductions in SI_CTL mode, iteration 0 : 104/104 places, 45/45 transitions.
Ensure Unique test removed 29 places
Discarding 7 places :
Implicit places reduction removed 7 places
Drop transitions removed 5 transitions
Trivial Post-agglo rules discarded 5 transitions
Performed 5 trivial Post agglomeration. Transition count delta: 5
Iterating post reduction 0 with 12 rules applied. Total rules applied 12 place count 68 transition count 40
Reduce places removed 8 places and 0 transitions.
Drop transitions removed 4 transitions
Trivial Post-agglo rules discarded 4 transitions
Performed 4 trivial Post agglomeration. Transition count delta: 4
Iterating post reduction 1 with 12 rules applied. Total rules applied 24 place count 60 transition count 36
Reduce places removed 4 places and 0 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Iterating post reduction 2 with 5 rules applied. Total rules applied 29 place count 56 transition count 35
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 3 with 1 rules applied. Total rules applied 30 place count 55 transition count 35
Performed 9 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 4 with 9 Pre rules applied. Total rules applied 30 place count 55 transition count 26
Deduced a syphon composed of 9 places in 1 ms
Ensure Unique test removed 1 places
Reduce places removed 13 places and 0 transitions.
Iterating global reduction 4 with 22 rules applied. Total rules applied 52 place count 42 transition count 26
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 4 with 1 Pre rules applied. Total rules applied 52 place count 42 transition count 25
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 4 with 2 rules applied. Total rules applied 54 place count 41 transition count 25
Performed 4 Post agglomeration using F-continuation condition.Transition count delta: 4
Deduced a syphon composed of 4 places in 0 ms
Reduce places removed 6 places and 0 transitions.
Iterating global reduction 4 with 10 rules applied. Total rules applied 64 place count 35 transition count 21
Applied a total of 64 rules in 7 ms. Remains 35 /104 variables (removed 69) and now considering 21/45 (removed 24) transitions.
Finished structural reductions in SI_CTL mode , in 1 iterations and 7 ms. Remains : 35/104 places, 21/45 transitions.
[2023-03-22 02:12:41] [INFO ] Flatten gal took : 1 ms
[2023-03-22 02:12:41] [INFO ] Flatten gal took : 1 ms
[2023-03-22 02:12:41] [INFO ] Input system was already deterministic with 21 transitions.
Starting structural reductions in LTL mode, iteration 0 : 104/104 places, 45/45 transitions.
Ensure Unique test removed 22 places
Discarding 6 places :
Implicit places reduction removed 6 places
Iterating post reduction 0 with 28 rules applied. Total rules applied 28 place count 76 transition count 45
Applied a total of 28 rules in 2 ms. Remains 76 /104 variables (removed 28) and now considering 45/45 (removed 0) transitions.
Finished structural reductions in LTL mode , in 1 iterations and 2 ms. Remains : 76/104 places, 45/45 transitions.
[2023-03-22 02:12:41] [INFO ] Flatten gal took : 3 ms
[2023-03-22 02:12:41] [INFO ] Flatten gal took : 4 ms
[2023-03-22 02:12:41] [INFO ] Input system was already deterministic with 45 transitions.
Starting structural reductions in SI_CTL mode, iteration 0 : 104/104 places, 45/45 transitions.
Ensure Unique test removed 24 places
Discarding 8 places :
Implicit places reduction removed 8 places
Drop transitions removed 5 transitions
Trivial Post-agglo rules discarded 5 transitions
Performed 5 trivial Post agglomeration. Transition count delta: 5
Iterating post reduction 0 with 13 rules applied. Total rules applied 13 place count 72 transition count 40
Reduce places removed 7 places and 0 transitions.
Drop transitions removed 3 transitions
Trivial Post-agglo rules discarded 3 transitions
Performed 3 trivial Post agglomeration. Transition count delta: 3
Iterating post reduction 1 with 10 rules applied. Total rules applied 23 place count 65 transition count 37
Reduce places removed 3 places and 0 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Iterating post reduction 2 with 4 rules applied. Total rules applied 27 place count 62 transition count 36
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 3 with 1 rules applied. Total rules applied 28 place count 61 transition count 36
Performed 12 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 4 with 12 Pre rules applied. Total rules applied 28 place count 61 transition count 24
Deduced a syphon composed of 12 places in 0 ms
Ensure Unique test removed 3 places
Reduce places removed 20 places and 0 transitions.
Iterating global reduction 4 with 32 rules applied. Total rules applied 60 place count 41 transition count 24
Performed 3 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 4 with 3 Pre rules applied. Total rules applied 60 place count 41 transition count 21
Deduced a syphon composed of 3 places in 0 ms
Reduce places removed 3 places and 0 transitions.
Iterating global reduction 4 with 6 rules applied. Total rules applied 66 place count 38 transition count 21
Performed 8 Post agglomeration using F-continuation condition.Transition count delta: 8
Deduced a syphon composed of 8 places in 0 ms
Reduce places removed 12 places and 0 transitions.
Iterating global reduction 4 with 20 rules applied. Total rules applied 86 place count 26 transition count 13
Discarding 2 places :
Implicit places reduction removed 2 places
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Iterating post reduction 4 with 3 rules applied. Total rules applied 89 place count 24 transition count 12
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 5 with 1 rules applied. Total rules applied 90 place count 23 transition count 12
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 6 with 1 Pre rules applied. Total rules applied 90 place count 23 transition count 11
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 2 places and 0 transitions.
Iterating global reduction 6 with 3 rules applied. Total rules applied 93 place count 21 transition count 11
Drop transitions removed 1 transitions
Trivial Post-agglo rules discarded 1 transitions
Performed 1 trivial Post agglomeration. Transition count delta: 1
Iterating post reduction 6 with 1 rules applied. Total rules applied 94 place count 21 transition count 10
Reduce places removed 2 places and 0 transitions.
Drop transitions removed 1 transitions
Trivial Post-agglo rules discarded 1 transitions
Performed 1 trivial Post agglomeration. Transition count delta: 1
Iterating post reduction 7 with 3 rules applied. Total rules applied 97 place count 19 transition count 9
Reduce places removed 1 places and 0 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Iterating post reduction 8 with 2 rules applied. Total rules applied 99 place count 18 transition count 8
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 9 with 1 rules applied. Total rules applied 100 place count 17 transition count 8
Applied a total of 100 rules in 7 ms. Remains 17 /104 variables (removed 87) and now considering 8/45 (removed 37) transitions.
Finished structural reductions in SI_CTL mode , in 1 iterations and 7 ms. Remains : 17/104 places, 8/45 transitions.
[2023-03-22 02:12:41] [INFO ] Flatten gal took : 1 ms
[2023-03-22 02:12:41] [INFO ] Flatten gal took : 1 ms
[2023-03-22 02:12:41] [INFO ] Input system was already deterministic with 8 transitions.
[2023-03-22 02:12:41] [INFO ] Flatten gal took : 5 ms
[2023-03-22 02:12:41] [INFO ] Flatten gal took : 5 ms
[2023-03-22 02:12:41] [INFO ] Export to MCC of 16 properties in file /home/mcc/execution/CTLFireability.sr.xml took 3 ms.
[2023-03-22 02:12:41] [INFO ] Export to PNML in file /home/mcc/execution/model.sr.pnml of net with 104 places, 45 transitions and 210 arcs took 1 ms.
Total runtime 1772 ms.
There are residual formulas that ITS could not solve within timeout
pnml2lts-sym model.pnml --lace-workers=4 --vset=lddmc --saturation=sat -rbs,w2W,ru,hf --sylvan-sizes=20,28,20,28 --ctl=/tmp/461/ctl_0_ --ctl=/tmp/461/ctl_1_ --ctl=/tmp/461/ctl_2_ --ctl=/tmp/461/ctl_3_ --ctl=/tmp/461/ctl_4_ --ctl=/tmp/461/ctl_5_ --ctl=/tmp/461/ctl_6_ --ctl=/tmp/461/ctl_7_ --ctl=/tmp/461/ctl_8_ --ctl=/tmp/461/ctl_9_ --ctl=/tmp/461/ctl_10_ --ctl=/tmp/461/ctl_11_ --ctl=/tmp/461/ctl_12_ --ctl=/tmp/461/ctl_13_ --ctl=/tmp/461/ctl_14_ --ctl=/tmp/461/ctl_15_ --mu-par --mu-opt
TIME LIMIT: Killed by timeout after 3570 seconds
MemTotal: 16393216 kB
MemFree: 15169812 kB
After kill :
MemTotal: 16393216 kB
MemFree: 16098308 kB
FORMULA IOTPpurchase-PT-C05M04P03D02-CTLFireability-00 FALSE TECHNIQUES DECISION_DIAGRAMS PARALLEL_PROCESSING USE_NUPN
FORMULA IOTPpurchase-PT-C05M04P03D02-CTLFireability-01 FALSE TECHNIQUES DECISION_DIAGRAMS PARALLEL_PROCESSING USE_NUPN
FORMULA IOTPpurchase-PT-C05M04P03D02-CTLFireability-02 TRUE TECHNIQUES DECISION_DIAGRAMS PARALLEL_PROCESSING USE_NUPN
Could not compute solution for formula : IOTPpurchase-PT-C05M04P03D02-CTLFireability-03
FORMULA IOTPpurchase-PT-C05M04P03D02-CTLFireability-04 TRUE TECHNIQUES DECISION_DIAGRAMS PARALLEL_PROCESSING USE_NUPN
Could not compute solution for formula : IOTPpurchase-PT-C05M04P03D02-CTLFireability-05
Could not compute solution for formula : IOTPpurchase-PT-C05M04P03D02-CTLFireability-06
Could not compute solution for formula : IOTPpurchase-PT-C05M04P03D02-CTLFireability-07
Could not compute solution for formula : IOTPpurchase-PT-C05M04P03D02-CTLFireability-08
Could not compute solution for formula : IOTPpurchase-PT-C05M04P03D02-CTLFireability-09
Could not compute solution for formula : IOTPpurchase-PT-C05M04P03D02-CTLFireability-10
Could not compute solution for formula : IOTPpurchase-PT-C05M04P03D02-CTLFireability-11
Could not compute solution for formula : IOTPpurchase-PT-C05M04P03D02-CTLFireability-12
Could not compute solution for formula : IOTPpurchase-PT-C05M04P03D02-CTLFireability-13
Could not compute solution for formula : IOTPpurchase-PT-C05M04P03D02-CTLFireability-14
FORMULA IOTPpurchase-PT-C05M04P03D02-CTLFireability-15 FALSE TECHNIQUES DECISION_DIAGRAMS PARALLEL_PROCESSING USE_NUPN

BK_STOP 1679454733602

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

+ ulimit -s 65536
+ [[ -z '' ]]
+ export LTSMIN_MEM_SIZE=8589934592
+ LTSMIN_MEM_SIZE=8589934592
+ export PYTHONPATH=/home/mcc/BenchKit/itstools/pylibs
+ PYTHONPATH=/home/mcc/BenchKit/itstools/pylibs
+ export LD_LIBRARY_PATH=/home/mcc/BenchKit/itstools/pylibs:
+ LD_LIBRARY_PATH=/home/mcc/BenchKit/itstools/pylibs:
++ sed s/.jar//
++ perl -pe 's/.*\.//g'
++ ls /home/mcc/BenchKit/bin//../reducer/bin//../../itstools//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202303021504.jar
+ VERSION=202303021504
+ echo 'Running Version 202303021504'
+ /home/mcc/BenchKit/bin//../reducer/bin//../../itstools//itstools/its-tools -pnfolder /home/mcc/execution -examination CTLFireability -timeout 360 -rebuildPNML
mcc2023
ctl formula name IOTPpurchase-PT-C05M04P03D02-CTLFireability-00
ctl formula formula --ctl=/tmp/461/ctl_0_
ctl formula name IOTPpurchase-PT-C05M04P03D02-CTLFireability-01
ctl formula formula --ctl=/tmp/461/ctl_1_
ctl formula name IOTPpurchase-PT-C05M04P03D02-CTLFireability-02
ctl formula formula --ctl=/tmp/461/ctl_2_
ctl formula name IOTPpurchase-PT-C05M04P03D02-CTLFireability-03
ctl formula formula --ctl=/tmp/461/ctl_3_
ctl formula name IOTPpurchase-PT-C05M04P03D02-CTLFireability-04
ctl formula formula --ctl=/tmp/461/ctl_4_
ctl formula name IOTPpurchase-PT-C05M04P03D02-CTLFireability-05
ctl formula formula --ctl=/tmp/461/ctl_5_
ctl formula name IOTPpurchase-PT-C05M04P03D02-CTLFireability-06
ctl formula formula --ctl=/tmp/461/ctl_6_
ctl formula name IOTPpurchase-PT-C05M04P03D02-CTLFireability-07
ctl formula formula --ctl=/tmp/461/ctl_7_
ctl formula name IOTPpurchase-PT-C05M04P03D02-CTLFireability-08
ctl formula formula --ctl=/tmp/461/ctl_8_
ctl formula name IOTPpurchase-PT-C05M04P03D02-CTLFireability-09
ctl formula formula --ctl=/tmp/461/ctl_9_
ctl formula name IOTPpurchase-PT-C05M04P03D02-CTLFireability-10
ctl formula formula --ctl=/tmp/461/ctl_10_
ctl formula name IOTPpurchase-PT-C05M04P03D02-CTLFireability-11
ctl formula formula --ctl=/tmp/461/ctl_11_
ctl formula name IOTPpurchase-PT-C05M04P03D02-CTLFireability-12
ctl formula formula --ctl=/tmp/461/ctl_12_
ctl formula name IOTPpurchase-PT-C05M04P03D02-CTLFireability-13
ctl formula formula --ctl=/tmp/461/ctl_13_
ctl formula name IOTPpurchase-PT-C05M04P03D02-CTLFireability-14
ctl formula formula --ctl=/tmp/461/ctl_14_
ctl formula name IOTPpurchase-PT-C05M04P03D02-CTLFireability-15
ctl formula formula --ctl=/tmp/461/ctl_15_
pnml2lts-sym: Exploration order is bfs-prev
pnml2lts-sym: Saturation strategy is sat
pnml2lts-sym: Guided search strategy is unguided
pnml2lts-sym: Attractor strategy is default
pnml2lts-sym: opening model.pnml
pnml2lts-sym: Edge label is id
Warning: program compiled against libxml 210 using older 209
pnml2lts-sym: Petri net has 104 places, 45 transitions and 210 arcs
pnml2lts-sym: Petri net Petri analyzed
pnml2lts-sym: There are no safe places
pnml2lts-sym: Loading Petri net took 0.010 real 0.010 user 0.000 sys
pnml2lts-sym: Initializing regrouping layer
pnml2lts-sym: Regroup specification: bs,w2W,ru,hf
pnml2lts-sym: Regroup Boost's Sloan
pnml2lts-sym: Regroup over-approximate must-write to may-write
pnml2lts-sym: Regroup Row sUbsume
pnml2lts-sym: Reqroup Horizontal Flip
pnml2lts-sym: Regrouping: 45->45 groups
pnml2lts-sym: Regrouping took 0.000 real 0.000 user 0.000 sys
pnml2lts-sym: state vector length is 104; there are 45 groups
pnml2lts-sym: Creating a multi-core ListDD domain.
pnml2lts-sym: Sylvan allocates 15.000 GB virtual memory for nodes table and operation cache.
pnml2lts-sym: Initial nodes table and operation cache requires 60.00 MB.
pnml2lts-sym: Using GBgetTransitionsShortR2W as next-state function
pnml2lts-sym: got initial state
pnml2lts-sym: parsing CTL formula
pnml2lts-sym: converting CTL to mu-calculus...
pnml2lts-sym: parsing CTL formula
pnml2lts-sym: converting CTL to mu-calculus...
pnml2lts-sym: parsing CTL formula
pnml2lts-sym: converting CTL to mu-calculus...
pnml2lts-sym: parsing CTL formula
pnml2lts-sym: converting CTL to mu-calculus...
pnml2lts-sym: parsing CTL formula
pnml2lts-sym: converting CTL to mu-calculus...
pnml2lts-sym: parsing CTL formula
pnml2lts-sym: converting CTL to mu-calculus...
pnml2lts-sym: parsing CTL formula
pnml2lts-sym: converting CTL to mu-calculus...
pnml2lts-sym: parsing CTL formula
pnml2lts-sym: converting CTL to mu-calculus...
pnml2lts-sym: parsing CTL formula
pnml2lts-sym: converting CTL to mu-calculus...
pnml2lts-sym: parsing CTL formula
pnml2lts-sym: converting CTL to mu-calculus...
pnml2lts-sym: parsing CTL formula
pnml2lts-sym: converting CTL to mu-calculus...
pnml2lts-sym: parsing CTL formula
pnml2lts-sym: converting CTL to mu-calculus...
pnml2lts-sym: parsing CTL formula
pnml2lts-sym: converting CTL to mu-calculus...
pnml2lts-sym: parsing CTL formula
pnml2lts-sym: converting CTL to mu-calculus...
pnml2lts-sym: parsing CTL formula
pnml2lts-sym: converting CTL to mu-calculus...
pnml2lts-sym: parsing CTL formula
pnml2lts-sym: converting CTL to mu-calculus...
pnml2lts-sym: Exploration took 8324 group checks and 0 next state calls
pnml2lts-sym: reachability took 0.090 real 0.320 user 0.020 sys
pnml2lts-sym: counting visited states...
pnml2lts-sym: counting took 0.000 real 0.020 user 0.000 sys
pnml2lts-sym: state space has 17406024 states, 6124 nodes
pnml2lts-sym: vset_sylvan: starting garbage collection
pnml2lts-sym: vset_sylvan: garbage collection done
pnml2lts-sym: Formula /tmp/461/ctl_15_ does not hold for the initial state
pnml2lts-sym: vset_sylvan: starting garbage collection
pnml2lts-sym: vset_sylvan: garbage collection done
pnml2lts-sym: vset_sylvan: starting garbage collection
pnml2lts-sym: vset_sylvan: garbage collection done
pnml2lts-sym: Formula /tmp/461/ctl_1_ does not hold for the initial state
pnml2lts-sym: vset_sylvan: starting garbage collection
pnml2lts-sym: vset_sylvan: garbage collection done
pnml2lts-sym: Formula /tmp/461/ctl_0_ does not hold for the initial state
pnml2lts-sym: Formula /tmp/461/ctl_4_ holds for the initial state
pnml2lts-sym: Formula /tmp/461/ctl_2_ holds for the initial state
Killing (15) : 467
Killing (9) : 467

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="IOTPpurchase-PT-C05M04P03D02"
export BK_EXAMINATION="CTLFireability"
export BK_TOOL="ltsminxred"
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 ltsminxred"
echo " Input is IOTPpurchase-PT-C05M04P03D02, 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 r233-tall-167856418400122"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/IOTPpurchase-PT-C05M04P03D02.tgz
mv IOTPpurchase-PT-C05M04P03D02 execution
cd execution
if [ "CTLFireability" = "ReachabilityDeadlock" ] || [ "CTLFireability" = "UpperBounds" ] || [ "CTLFireability" = "QuasiLiveness" ] || [ "CTLFireability" = "StableMarking" ] || [ "CTLFireability" = "Liveness" ] || [ "CTLFireability" = "OneSafe" ] || [ "CTLFireability" = "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 [ "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
elif [ "CTLFireability" = "ReachabilityDeadlock" ] || [ "CTLFireability" = "QuasiLiveness" ] || [ "CTLFireability" = "StableMarking" ] || [ "CTLFireability" = "Liveness" ] || [ "CTLFireability" = "OneSafe" ] ; then
echo "FORMULA_NAME CTLFireability"
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 ;