Execution Chart

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

Trace from the execution

Formatting '/data/fkordon/mcc2024-input.r092-tall-171624188800183.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2024-input.qcow2 backing_fmt=qcow2 cluster_size=65536 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
.................
=====================================================================
Generated by BenchKit 2-5568
Executing tool itstools
Input is CloudReconfiguration-PT-309, examination is ReachabilityFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r092-tall-171624188800183
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 1.2M
-rw-r--r-- 1 mcc users 8.1K May 14 13:22 CTLCardinality.txt
-rw-r--r-- 1 mcc users 90K May 14 13:22 CTLCardinality.xml
-rw-r--r-- 1 mcc users 4.7K May 14 13:22 CTLFireability.txt
-rw-r--r-- 1 mcc users 39K May 14 13:22 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K May 18 16:42 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.8K May 18 16:42 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 3.7K Apr 22 14:35 LTLCardinality.txt
-rw-r--r-- 1 mcc users 25K Apr 22 14:35 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.4K Apr 22 14:35 LTLFireability.txt
-rw-r--r-- 1 mcc users 17K Apr 22 14:35 LTLFireability.xml
-rw-r--r-- 1 mcc users 9.3K Apr 11 19:42 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 90K Apr 11 19:42 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 12K Apr 11 19:42 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 106K Apr 11 19:42 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.8K Apr 22 14:35 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.8K Apr 22 14:35 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 May 18 16:42 equiv_col
-rw-r--r-- 1 mcc users 4 May 18 16:42 instance
-rw-r--r-- 1 mcc users 6 May 18 16:42 iscolored
-rw-r--r-- 1 mcc users 660K May 18 16:42 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 CloudReconfiguration-PT-309-ReachabilityFireability-2024-00
FORMULA_NAME CloudReconfiguration-PT-309-ReachabilityFireability-2024-01
FORMULA_NAME CloudReconfiguration-PT-309-ReachabilityFireability-2024-02
FORMULA_NAME CloudReconfiguration-PT-309-ReachabilityFireability-2024-03
FORMULA_NAME CloudReconfiguration-PT-309-ReachabilityFireability-2024-04
FORMULA_NAME CloudReconfiguration-PT-309-ReachabilityFireability-2024-05
FORMULA_NAME CloudReconfiguration-PT-309-ReachabilityFireability-2024-06
FORMULA_NAME CloudReconfiguration-PT-309-ReachabilityFireability-2024-07
FORMULA_NAME CloudReconfiguration-PT-309-ReachabilityFireability-2024-08
FORMULA_NAME CloudReconfiguration-PT-309-ReachabilityFireability-2024-09
FORMULA_NAME CloudReconfiguration-PT-309-ReachabilityFireability-2024-10
FORMULA_NAME CloudReconfiguration-PT-309-ReachabilityFireability-2024-11
FORMULA_NAME CloudReconfiguration-PT-309-ReachabilityFireability-2024-12
FORMULA_NAME CloudReconfiguration-PT-309-ReachabilityFireability-2024-13
FORMULA_NAME CloudReconfiguration-PT-309-ReachabilityFireability-2024-14
FORMULA_NAME CloudReconfiguration-PT-309-ReachabilityFireability-2024-15

=== Now, execution of the tool begins

BK_START 1716270333182

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=ReachabilityFireability
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=CloudReconfiguration-PT-309
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
ReachabilityFireability PT
Running Version 202405141337
[2024-05-21 05:45:34] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, ReachabilityFireability, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2024-05-21 05:45:34] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2024-05-21 05:45:34] [INFO ] Load time of PNML (sax parser for PT used): 154 ms
[2024-05-21 05:45:34] [INFO ] Transformed 2585 places.
[2024-05-21 05:45:34] [INFO ] Transformed 3095 transitions.
[2024-05-21 05:45:34] [INFO ] Found NUPN structural information;
[2024-05-21 05:45:34] [INFO ] Parsed PT model containing 2585 places and 3095 transitions and 6463 arcs in 261 ms.
Parsed 16 properties from file /home/mcc/execution/ReachabilityFireability.xml in 18 ms.
Working with output stream class java.io.PrintStream
RANDOM walk for 40000 steps (294 resets) in 1842 ms. (21 steps per ms) remains 12/16 properties
FORMULA CloudReconfiguration-PT-309-ReachabilityFireability-2024-15 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA CloudReconfiguration-PT-309-ReachabilityFireability-2024-08 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA CloudReconfiguration-PT-309-ReachabilityFireability-2024-05 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA CloudReconfiguration-PT-309-ReachabilityFireability-2024-03 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
BEST_FIRST walk for 40003 steps (79 resets) in 456 ms. (87 steps per ms) remains 12/12 properties
[2024-05-21 05:45:35] [INFO ] Flatten gal took : 426 ms
BEST_FIRST walk for 40003 steps (78 resets) in 592 ms. (67 steps per ms) remains 12/12 properties
[2024-05-21 05:45:35] [INFO ] Flatten gal took : 125 ms
BEST_FIRST walk for 40004 steps (79 resets) in 216 ms. (184 steps per ms) remains 12/12 properties
BEST_FIRST walk for 40003 steps (78 resets) in 148 ms. (268 steps per ms) remains 12/12 properties
[2024-05-21 05:45:35] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality11131716567038772947.gal : 92 ms
[2024-05-21 05:45:35] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality13071939690822751486.prop : 6 ms
BEST_FIRST walk for 40002 steps (77 resets) in 154 ms. (258 steps per ms) remains 12/12 properties
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202405141337/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality11131716567038772947.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality13071939690822751486.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202405141337/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...330
BEST_FIRST walk for 40002 steps (76 resets) in 198 ms. (201 steps per ms) remains 12/12 properties
BEST_FIRST walk for 40001 steps (75 resets) in 128 ms. (310 steps per ms) remains 12/12 properties
BEST_FIRST walk for 40001 steps (77 resets) in 128 ms. (310 steps per ms) remains 12/12 properties
BEST_FIRST walk for 40002 steps (80 resets) in 161 ms. (246 steps per ms) remains 12/12 properties
Loading property file /tmp/ReachabilityCardinality13071939690822751486.prop.
BEST_FIRST walk for 40003 steps (81 resets) in 106 ms. (373 steps per ms) remains 12/12 properties
BEST_FIRST walk for 40004 steps (81 resets) in 138 ms. (287 steps per ms) remains 12/12 properties
BEST_FIRST walk for 40003 steps (81 resets) in 132 ms. (300 steps per ms) remains 12/12 properties
// Phase 1: matrix 3095 rows 2585 cols
[2024-05-21 05:45:36] [INFO ] Computed 4 invariants in 38 ms
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/303 variables, 303/303 constraints. Problems are: Problem set: 0 solved, 12 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/303 variables, 0/303 constraints. Problems are: Problem set: 0 solved, 12 unsolved
At refinement iteration 2 (OVERLAPS) 2272/2575 variables, 4/307 constraints. Problems are: Problem set: 0 solved, 12 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/2575 variables, 2272/2579 constraints. Problems are: Problem set: 0 solved, 12 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/2575 variables, 0/2579 constraints. Problems are: Problem set: 0 solved, 12 unsolved
At refinement iteration 5 (OVERLAPS) 3087/5662 variables, 2575/5154 constraints. Problems are: Problem set: 0 solved, 12 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/5662 variables, 0/5154 constraints. Problems are: Problem set: 0 solved, 12 unsolved
SDD proceeding with computation,12 properties remain. new max is 4
SDD size :1 after 2
SDD proceeding with computation,12 properties remain. new max is 8
SDD size :2 after 3
SDD proceeding with computation,12 properties remain. new max is 16
SDD size :3 after 4
SDD proceeding with computation,12 properties remain. new max is 32
SDD size :4 after 5
SDD proceeding with computation,12 properties remain. new max is 64
SDD size :5 after 6
SDD proceeding with computation,12 properties remain. new max is 128
SDD size :6 after 7
SDD proceeding with computation,12 properties remain. new max is 256
SDD size :7 after 9
SDD proceeding with computation,12 properties remain. new max is 512
SDD size :9 after 11
At refinement iteration 7 (OVERLAPS) 6/5668 variables, 3/5157 constraints. Problems are: Problem set: 0 solved, 12 unsolved
SDD proceeding with computation,12 properties remain. new max is 1024
SDD size :11 after 19
SDD proceeding with computation,12 properties remain. new max is 2048
SDD size :19 after 209
At refinement iteration 8 (INCLUDED_ONLY) 0/5668 variables, 3/5160 constraints. Problems are: Problem set: 0 solved, 12 unsolved
SDD proceeding with computation,12 properties remain. new max is 4096
SDD size :209 after 2267
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 5668/5680 variables, and 5160 constraints, problems are : Problem set: 0 solved, 12 unsolved in 5053 ms.
Refiners :[Domain max(s): 2578/2585 constraints, Generalized P Invariants (flows): 4/4 constraints, State Equation: 2578/2585 constraints, PredecessorRefiner: 12/12 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 12 unsolved
Reachability property CloudReconfiguration-PT-309-ReachabilityFireability-2024-07 is true.
FORMULA CloudReconfiguration-PT-309-ReachabilityFireability-2024-07 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING
At refinement iteration 0 (INCLUDED_ONLY) 0/303 variables, 303/303 constraints. Problems are: Problem set: 1 solved, 11 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/303 variables, 0/303 constraints. Problems are: Problem set: 1 solved, 11 unsolved
At refinement iteration 2 (OVERLAPS) 2272/2575 variables, 4/307 constraints. Problems are: Problem set: 1 solved, 11 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/2575 variables, 2272/2579 constraints. Problems are: Problem set: 1 solved, 11 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/2575 variables, 0/2579 constraints. Problems are: Problem set: 1 solved, 11 unsolved
At refinement iteration 5 (OVERLAPS) 3087/5662 variables, 2575/5154 constraints. Problems are: Problem set: 1 solved, 11 unsolved
Invariant property CloudReconfiguration-PT-309-ReachabilityFireability-2024-00 does not hold.
FORMULA CloudReconfiguration-PT-309-ReachabilityFireability-2024-00 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING
SDD proceeding with computation,10 properties remain. new max is 4096
SDD size :2267 after 5185
At refinement iteration 6 (INCLUDED_ONLY) 0/5662 variables, 10/5164 constraints. Problems are: Problem set: 2 solved, 10 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 5662/5680 variables, and 5164 constraints, problems are : Problem set: 2 solved, 10 unsolved in 5031 ms.
Refiners :[Domain max(s): 2575/2585 constraints, Generalized P Invariants (flows): 4/4 constraints, State Equation: 2575/2585 constraints, PredecessorRefiner: 10/12 constraints, Known Traps: 0/0 constraints]
After SMT, in 10359ms problems are : Problem set: 2 solved, 10 unsolved
Skipping Parikh replay, no witness traces provided.
Support contains 216 out of 2585 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 2585/2585 places, 3095/3095 transitions.
Graph (trivial) has 2434 edges and 2585 vertex of which 408 / 2585 are part of one of the 39 SCC in 11 ms
Free SCC test removed 369 places
Drop transitions (Empty/Sink Transition effects.) removed 448 transitions
Reduce isomorphic transitions removed 448 transitions.
Graph (complete) has 2927 edges and 2216 vertex of which 2202 are kept as prefixes of interest. Removing 14 places using SCC suffix rule.5 ms
Discarding 14 places :
Also discarding 9 output transitions
Drop transitions (Output transitions of discarded places.) removed 9 transitions
Drop transitions (Empty/Sink Transition effects.) removed 3 transitions
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 5 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 1074 transitions
Trivial Post-agglo rules discarded 1074 transitions
Performed 1074 trivial Post agglomeration. Transition count delta: 1074
Iterating post reduction 0 with 1079 rules applied. Total rules applied 1081 place count 2202 transition count 1559
Reduce places removed 1074 places and 0 transitions.
Ensure Unique test removed 43 transitions
Reduce isomorphic transitions removed 43 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 25 transitions
Trivial Post-agglo rules discarded 25 transitions
Performed 25 trivial Post agglomeration. Transition count delta: 25
Iterating post reduction 1 with 1142 rules applied. Total rules applied 2223 place count 1128 transition count 1491
Reduce places removed 25 places and 0 transitions.
Ensure Unique test removed 3 transitions
Reduce isomorphic transitions removed 3 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 3 transitions
Trivial Post-agglo rules discarded 3 transitions
Performed 3 trivial Post agglomeration. Transition count delta: 3
Iterating post reduction 2 with 31 rules applied. Total rules applied 2254 place count 1103 transition count 1485
Reduce places removed 3 places and 0 transitions.
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 1 transitions
Trivial Post-agglo rules discarded 1 transitions
Performed 1 trivial Post agglomeration. Transition count delta: 1
Iterating post reduction 3 with 5 rules applied. Total rules applied 2259 place count 1100 transition count 1483
Reduce places removed 1 places and 0 transitions.
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 2 transitions
Trivial Post-agglo rules discarded 2 transitions
Performed 2 trivial Post agglomeration. Transition count delta: 2
Iterating post reduction 4 with 4 rules applied. Total rules applied 2263 place count 1099 transition count 1480
Reduce places removed 2 places and 0 transitions.
SDD proceeding with computation,10 properties remain. new max is 8192
SDD size :5185 after 10372
Performed 175 Post agglomeration using F-continuation condition.Transition count delta: 175
Iterating post reduction 5 with 177 rules applied. Total rules applied 2440 place count 1097 transition count 1305
Reduce places removed 175 places and 0 transitions.
Ensure Unique test removed 16 transitions
Reduce isomorphic transitions removed 16 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Iterating post reduction 6 with 192 rules applied. Total rules applied 2632 place count 922 transition count 1288
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 7 with 1 rules applied. Total rules applied 2633 place count 921 transition count 1288
Performed 37 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 8 with 37 Pre rules applied. Total rules applied 2633 place count 921 transition count 1251
Deduced a syphon composed of 37 places in 1 ms
Reduce places removed 37 places and 0 transitions.
Iterating global reduction 8 with 74 rules applied. Total rules applied 2707 place count 884 transition count 1251
Discarding 98 places :
Symmetric choice reduction at 8 with 98 rule applications. Total rules 2805 place count 786 transition count 1153
Iterating global reduction 8 with 98 rules applied. Total rules applied 2903 place count 786 transition count 1153
Ensure Unique test removed 4 transitions
Reduce isomorphic transitions removed 4 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 1 transitions
Trivial Post-agglo rules discarded 1 transitions
Performed 1 trivial Post agglomeration. Transition count delta: 1
Iterating post reduction 8 with 5 rules applied. Total rules applied 2908 place count 786 transition count 1148
Reduce places removed 1 places and 0 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Iterating post reduction 9 with 2 rules applied. Total rules applied 2910 place count 785 transition count 1147
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 10 with 1 rules applied. Total rules applied 2911 place count 784 transition count 1147
Performed 6 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 11 with 6 Pre rules applied. Total rules applied 2911 place count 784 transition count 1141
Deduced a syphon composed of 6 places in 2 ms
Reduce places removed 6 places and 0 transitions.
Iterating global reduction 11 with 12 rules applied. Total rules applied 2923 place count 778 transition count 1141
Discarding 47 places :
Symmetric choice reduction at 11 with 47 rule applications. Total rules 2970 place count 731 transition count 1093
Iterating global reduction 11 with 47 rules applied. Total rules applied 3017 place count 731 transition count 1093
Ensure Unique test removed 4 transitions
Reduce isomorphic transitions removed 4 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 4 transitions
Trivial Post-agglo rules discarded 4 transitions
Performed 4 trivial Post agglomeration. Transition count delta: 4
Iterating post reduction 11 with 8 rules applied. Total rules applied 3025 place count 731 transition count 1085
Reduce places removed 4 places and 0 transitions.
Iterating post reduction 12 with 4 rules applied. Total rules applied 3029 place count 727 transition count 1085
Discarding 5 places :
Symmetric choice reduction at 13 with 5 rule applications. Total rules 3034 place count 722 transition count 1077
Iterating global reduction 13 with 5 rules applied. Total rules applied 3039 place count 722 transition count 1077
Discarding 2 places :
Symmetric choice reduction at 13 with 2 rule applications. Total rules 3041 place count 720 transition count 1073
Iterating global reduction 13 with 2 rules applied. Total rules applied 3043 place count 720 transition count 1073
Discarding 1 places :
Symmetric choice reduction at 13 with 1 rule applications. Total rules 3044 place count 719 transition count 1071
Iterating global reduction 13 with 1 rules applied. Total rules applied 3045 place count 719 transition count 1071
Performed 171 Post agglomeration using F-continuation condition with reduction of 26 identical transitions.
Deduced a syphon composed of 171 places in 2 ms
Reduce places removed 171 places and 0 transitions.
Iterating global reduction 13 with 342 rules applied. Total rules applied 3387 place count 548 transition count 874
Ensure Unique test removed 23 transitions
Reduce isomorphic transitions removed 23 transitions.
Iterating post reduction 13 with 23 rules applied. Total rules applied 3410 place count 548 transition count 851
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 4 places and 0 transitions.
Iterating global reduction 14 with 8 rules applied. Total rules applied 3418 place count 544 transition count 847
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 14 with 1 rules applied. Total rules applied 3419 place count 544 transition count 846
Performed 60 Post agglomeration using F-continuation condition with reduction of 16 identical transitions.
Deduced a syphon composed of 60 places in 1 ms
Reduce places removed 60 places and 0 transitions.
Iterating global reduction 15 with 120 rules applied. Total rules applied 3539 place count 484 transition count 914
Ensure Unique test removed 25 transitions
Reduce isomorphic transitions removed 25 transitions.
Iterating post reduction 15 with 25 rules applied. Total rules applied 3564 place count 484 transition count 889
Discarding 5 places :
Symmetric choice reduction at 16 with 5 rule applications. Total rules 3569 place count 479 transition count 879
Iterating global reduction 16 with 5 rules applied. Total rules applied 3574 place count 479 transition count 879
Drop transitions (Redundant composition of simpler transitions.) removed 63 transitions
Redundant transition composition rules discarded 63 transitions
Iterating global reduction 16 with 63 rules applied. Total rules applied 3637 place count 479 transition count 816
Free-agglomeration rule applied 34 times.
Iterating global reduction 16 with 34 rules applied. Total rules applied 3671 place count 479 transition count 782
Reduce places removed 34 places and 0 transitions.
Iterating post reduction 16 with 34 rules applied. Total rules applied 3705 place count 445 transition count 782
Drop transitions (Redundant composition of simpler transitions.) removed 4 transitions
Redundant transition composition rules discarded 4 transitions
Iterating global reduction 17 with 4 rules applied. Total rules applied 3709 place count 445 transition count 778
Partial Free-agglomeration rule applied 17 times.
Drop transitions (Partial Free agglomeration) removed 17 transitions
Iterating global reduction 17 with 17 rules applied. Total rules applied 3726 place count 445 transition count 778
Partial Post-agglomeration rule applied 3 times.
Drop transitions (Partial Post agglomeration) removed 3 transitions
Iterating global reduction 17 with 3 rules applied. Total rules applied 3729 place count 445 transition count 778
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 17 with 1 rules applied. Total rules applied 3730 place count 444 transition count 777
Applied a total of 3730 rules in 644 ms. Remains 444 /2585 variables (removed 2141) and now considering 777/3095 (removed 2318) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 654 ms. Remains : 444/2585 places, 777/3095 transitions.
RANDOM walk for 40000 steps (1723 resets) in 758 ms. (52 steps per ms) remains 7/10 properties
FORMULA CloudReconfiguration-PT-309-ReachabilityFireability-2024-14 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA CloudReconfiguration-PT-309-ReachabilityFireability-2024-13 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA CloudReconfiguration-PT-309-ReachabilityFireability-2024-06 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
BEST_FIRST walk for 40004 steps (390 resets) in 142 ms. (279 steps per ms) remains 7/7 properties
BEST_FIRST walk for 40004 steps (372 resets) in 124 ms. (320 steps per ms) remains 7/7 properties
BEST_FIRST walk for 40002 steps (368 resets) in 169 ms. (235 steps per ms) remains 7/7 properties
SDD proceeding with computation,10 properties remain. new max is 16384
SDD size :10372 after 29391
BEST_FIRST walk for 40002 steps (389 resets) in 125 ms. (317 steps per ms) remains 7/7 properties
BEST_FIRST walk for 40004 steps (380 resets) in 62 ms. (634 steps per ms) remains 7/7 properties
BEST_FIRST walk for 40003 steps (393 resets) in 106 ms. (373 steps per ms) remains 7/7 properties
BEST_FIRST walk for 40001 steps (382 resets) in 57 ms. (689 steps per ms) remains 7/7 properties
[2024-05-21 05:45:48] [INFO ] Flow matrix only has 767 transitions (discarded 10 similar events)
// Phase 1: matrix 767 rows 444 cols
[2024-05-21 05:45:48] [INFO ] Computed 1 invariants in 9 ms
[2024-05-21 05:45:48] [INFO ] State equation strengthened by 4 read => feed constraints.
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/172 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 7 unsolved
Problem CloudReconfiguration-PT-309-ReachabilityFireability-2024-01 is UNSAT
FORMULA CloudReconfiguration-PT-309-ReachabilityFireability-2024-01 FALSE TECHNIQUES SMT_REFINEMENT
At refinement iteration 1 (OVERLAPS) 83/255 variables, 1/1 constraints. Problems are: Problem set: 1 solved, 6 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/255 variables, 0/1 constraints. Problems are: Problem set: 1 solved, 6 unsolved
At refinement iteration 3 (OVERLAPS) 666/921 variables, 255/256 constraints. Problems are: Problem set: 1 solved, 6 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/921 variables, 1/257 constraints. Problems are: Problem set: 1 solved, 6 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/921 variables, 0/257 constraints. Problems are: Problem set: 1 solved, 6 unsolved
At refinement iteration 6 (OVERLAPS) 262/1183 variables, 164/421 constraints. Problems are: Problem set: 1 solved, 6 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/1183 variables, 3/424 constraints. Problems are: Problem set: 1 solved, 6 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/1183 variables, 0/424 constraints. Problems are: Problem set: 1 solved, 6 unsolved
Problem CloudReconfiguration-PT-309-ReachabilityFireability-2024-02 is UNSAT
FORMULA CloudReconfiguration-PT-309-ReachabilityFireability-2024-02 FALSE TECHNIQUES SMT_REFINEMENT
Problem CloudReconfiguration-PT-309-ReachabilityFireability-2024-09 is UNSAT
FORMULA CloudReconfiguration-PT-309-ReachabilityFireability-2024-09 FALSE TECHNIQUES SMT_REFINEMENT
At refinement iteration 9 (OVERLAPS) 27/1210 variables, 24/448 constraints. Problems are: Problem set: 3 solved, 4 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/1210 variables, 0/448 constraints. Problems are: Problem set: 3 solved, 4 unsolved
At refinement iteration 11 (OVERLAPS) 1/1211 variables, 1/449 constraints. Problems are: Problem set: 3 solved, 4 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/1211 variables, 0/449 constraints. Problems are: Problem set: 3 solved, 4 unsolved
At refinement iteration 13 (OVERLAPS) 0/1211 variables, 0/449 constraints. Problems are: Problem set: 3 solved, 4 unsolved
No progress, stopping.
After SMT solving in domain Real declared 1211/1211 variables, and 449 constraints, problems are : Problem set: 3 solved, 4 unsolved in 720 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 444/444 constraints, ReadFeed: 4/4 constraints, PredecessorRefiner: 7/7 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 3 solved, 4 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/73 variables, 0/0 constraints. Problems are: Problem set: 3 solved, 4 unsolved
At refinement iteration 1 (OVERLAPS) 107/180 variables, 1/1 constraints. Problems are: Problem set: 3 solved, 4 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/180 variables, 0/1 constraints. Problems are: Problem set: 3 solved, 4 unsolved
At refinement iteration 3 (OVERLAPS) 469/649 variables, 180/181 constraints. Problems are: Problem set: 3 solved, 4 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/649 variables, 1/182 constraints. Problems are: Problem set: 3 solved, 4 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/649 variables, 0/182 constraints. Problems are: Problem set: 3 solved, 4 unsolved
At refinement iteration 6 (OVERLAPS) 387/1036 variables, 153/335 constraints. Problems are: Problem set: 3 solved, 4 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/1036 variables, 2/337 constraints. Problems are: Problem set: 3 solved, 4 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/1036 variables, 3/340 constraints. Problems are: Problem set: 3 solved, 4 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/1036 variables, 0/340 constraints. Problems are: Problem set: 3 solved, 4 unsolved
At refinement iteration 10 (OVERLAPS) 147/1183 variables, 88/428 constraints. Problems are: Problem set: 3 solved, 4 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/1183 variables, 1/429 constraints. Problems are: Problem set: 3 solved, 4 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/1183 variables, 0/429 constraints. Problems are: Problem set: 3 solved, 4 unsolved
At refinement iteration 13 (OVERLAPS) 28/1211 variables, 23/452 constraints. Problems are: Problem set: 3 solved, 4 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/1211 variables, 1/453 constraints. Problems are: Problem set: 3 solved, 4 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/1211 variables, 0/453 constraints. Problems are: Problem set: 3 solved, 4 unsolved
At refinement iteration 16 (OVERLAPS) 0/1211 variables, 0/453 constraints. Problems are: Problem set: 3 solved, 4 unsolved
No progress, stopping.
After SMT solving in domain Int declared 1211/1211 variables, and 453 constraints, problems are : Problem set: 3 solved, 4 unsolved in 1145 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 444/444 constraints, ReadFeed: 4/4 constraints, PredecessorRefiner: 4/7 constraints, Known Traps: 0/0 constraints]
After SMT, in 1936ms problems are : Problem set: 3 solved, 4 unsolved
Fused 4 Parikh solutions to 3 different solutions.
FORMULA CloudReconfiguration-PT-309-ReachabilityFireability-2024-10 TRUE TECHNIQUES PARIKH_WALK
FORMULA CloudReconfiguration-PT-309-ReachabilityFireability-2024-04 FALSE TECHNIQUES PARIKH_WALK
SDD proceeding with computation,10 properties remain. new max is 32768
SDD size :29391 after 164069
Parikh walk visited 2 properties in 464 ms.
Support contains 48 out of 444 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 444/444 places, 777/777 transitions.
Graph (trivial) has 487 edges and 444 vertex of which 103 / 444 are part of one of the 34 SCC in 0 ms
Free SCC test removed 69 places
Drop transitions (Empty/Sink Transition effects.) removed 117 transitions
Ensure Unique test removed 7 transitions
Reduce isomorphic transitions removed 124 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 82 transitions
Trivial Post-agglo rules discarded 82 transitions
Performed 82 trivial Post agglomeration. Transition count delta: 82
Iterating post reduction 0 with 82 rules applied. Total rules applied 83 place count 375 transition count 571
Reduce places removed 82 places and 0 transitions.
Ensure Unique test removed 10 transitions
Reduce isomorphic transitions removed 10 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 1 transitions
Trivial Post-agglo rules discarded 1 transitions
Performed 1 trivial Post agglomeration. Transition count delta: 1
Iterating post reduction 1 with 93 rules applied. Total rules applied 176 place count 293 transition count 560
Reduce places removed 1 places and 0 transitions.
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Performed 8 Post agglomeration using F-continuation condition.Transition count delta: 8
Iterating post reduction 2 with 10 rules applied. Total rules applied 186 place count 292 transition count 551
Reduce places removed 8 places and 0 transitions.
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 3 with 9 rules applied. Total rules applied 195 place count 284 transition count 550
Performed 11 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 4 with 11 Pre rules applied. Total rules applied 195 place count 284 transition count 539
Deduced a syphon composed of 11 places in 0 ms
Reduce places removed 11 places and 0 transitions.
Iterating global reduction 4 with 22 rules applied. Total rules applied 217 place count 273 transition count 539
Discarding 20 places :
Symmetric choice reduction at 4 with 20 rule applications. Total rules 237 place count 253 transition count 510
Iterating global reduction 4 with 20 rules applied. Total rules applied 257 place count 253 transition count 510
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 4 with 2 rules applied. Total rules applied 259 place count 253 transition count 508
Discarding 1 places :
Symmetric choice reduction at 5 with 1 rule applications. Total rules 260 place count 252 transition count 507
Iterating global reduction 5 with 1 rules applied. Total rules applied 261 place count 252 transition count 507
Performed 56 Post agglomeration using F-continuation condition with reduction of 33 identical transitions.
Deduced a syphon composed of 56 places in 1 ms
Reduce places removed 56 places and 0 transitions.
Iterating global reduction 5 with 112 rules applied. Total rules applied 373 place count 196 transition count 418
Ensure Unique test removed 9 transitions
Reduce isomorphic transitions removed 9 transitions.
Iterating post reduction 5 with 9 rules applied. Total rules applied 382 place count 196 transition count 409
Discarding 9 places :
Symmetric choice reduction at 6 with 9 rule applications. Total rules 391 place count 187 transition count 394
Iterating global reduction 6 with 9 rules applied. Total rules applied 400 place count 187 transition count 394
Ensure Unique test removed 3 transitions
Reduce isomorphic transitions removed 3 transitions.
Iterating post reduction 6 with 3 rules applied. Total rules applied 403 place count 187 transition count 391
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 4 places and 0 transitions.
Iterating global reduction 7 with 8 rules applied. Total rules applied 411 place count 183 transition count 387
Ensure Unique test removed 5 transitions
Reduce isomorphic transitions removed 5 transitions.
Iterating post reduction 7 with 5 rules applied. Total rules applied 416 place count 183 transition count 382
Discarding 1 places :
Symmetric choice reduction at 8 with 1 rule applications. Total rules 417 place count 182 transition count 380
Iterating global reduction 8 with 1 rules applied. Total rules applied 418 place count 182 transition count 380
Performed 13 Post agglomeration using F-continuation condition with reduction of 2 identical transitions.
Deduced a syphon composed of 13 places in 0 ms
Reduce places removed 13 places and 0 transitions.
Iterating global reduction 8 with 26 rules applied. Total rules applied 444 place count 169 transition count 409
Ensure Unique test removed 32 transitions
Reduce isomorphic transitions removed 32 transitions.
Iterating post reduction 8 with 32 rules applied. Total rules applied 476 place count 169 transition count 377
Discarding 8 places :
Symmetric choice reduction at 9 with 8 rule applications. Total rules 484 place count 161 transition count 353
Iterating global reduction 9 with 8 rules applied. Total rules applied 492 place count 161 transition count 353
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 9 with 2 rules applied. Total rules applied 494 place count 161 transition count 351
Discarding 5 places :
Symmetric choice reduction at 10 with 5 rule applications. Total rules 499 place count 156 transition count 345
Iterating global reduction 10 with 5 rules applied. Total rules applied 504 place count 156 transition count 345
Ensure Unique test removed 11 transitions
Reduce isomorphic transitions removed 11 transitions.
Iterating post reduction 10 with 11 rules applied. Total rules applied 515 place count 156 transition count 334
Drop transitions (Redundant composition of simpler transitions.) removed 22 transitions
Redundant transition composition rules discarded 22 transitions
Iterating global reduction 11 with 22 rules applied. Total rules applied 537 place count 156 transition count 312
Drop transitions (Trivial Post-Agglo cleanup.) removed 1 transitions
Trivial Post-agglo rules discarded 1 transitions
Performed 1 trivial Post agglomeration. Transition count delta: 1
Iterating post reduction 11 with 1 rules applied. Total rules applied 538 place count 156 transition count 311
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 12 with 1 rules applied. Total rules applied 539 place count 155 transition count 311
Discarding 1 places :
Symmetric choice reduction at 13 with 1 rule applications. Total rules 540 place count 154 transition count 310
Iterating global reduction 13 with 1 rules applied. Total rules applied 541 place count 154 transition count 310
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 13 with 2 rules applied. Total rules applied 543 place count 153 transition count 309
Drop transitions (Redundant composition of simpler transitions.) removed 1 transitions
Redundant transition composition rules discarded 1 transitions
Iterating global reduction 13 with 1 rules applied. Total rules applied 544 place count 153 transition count 308
Free-agglomeration rule applied 6 times.
Iterating global reduction 13 with 6 rules applied. Total rules applied 550 place count 153 transition count 302
Reduce places removed 6 places and 0 transitions.
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 13 with 7 rules applied. Total rules applied 557 place count 147 transition count 301
Drop transitions (Redundant composition of simpler transitions.) removed 1 transitions
Redundant transition composition rules discarded 1 transitions
Iterating global reduction 14 with 1 rules applied. Total rules applied 558 place count 147 transition count 300
Partial Free-agglomeration rule applied 5 times.
Drop transitions (Partial Free agglomeration) removed 5 transitions
Iterating global reduction 14 with 5 rules applied. Total rules applied 563 place count 147 transition count 300
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 14 with 1 rules applied. Total rules applied 564 place count 147 transition count 299
Discarding 1 places :
Symmetric choice reduction at 15 with 1 rule applications. Total rules 565 place count 146 transition count 298
Iterating global reduction 15 with 1 rules applied. Total rules applied 566 place count 146 transition count 298
Drop transitions (Redundant composition of simpler transitions.) removed 1 transitions
Redundant transition composition rules discarded 1 transitions
Iterating global reduction 15 with 1 rules applied. Total rules applied 567 place count 146 transition count 297
Applied a total of 567 rules in 140 ms. Remains 146 /444 variables (removed 298) and now considering 297/777 (removed 480) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 140 ms. Remains : 146/444 places, 297/777 transitions.
RANDOM walk for 40000 steps (2899 resets) in 338 ms. (117 steps per ms) remains 2/2 properties
BEST_FIRST walk for 40004 steps (613 resets) in 103 ms. (384 steps per ms) remains 2/2 properties
BEST_FIRST walk for 40000 steps (83 resets) in 43 ms. (909 steps per ms) remains 2/2 properties
Finished probabilistic random walk after 41469 steps, run visited all 2 properties in 115 ms. (steps per millisecond=360 )
Probabilistic random walk after 41469 steps, saw 9927 distinct states, run finished after 119 ms. (steps per millisecond=348 ) properties seen :2
FORMULA CloudReconfiguration-PT-309-ReachabilityFireability-2024-12 FALSE TECHNIQUES TOPOLOGICAL PROBABILISTIC_WALK
FORMULA CloudReconfiguration-PT-309-ReachabilityFireability-2024-11 TRUE TECHNIQUES TOPOLOGICAL PROBABILISTIC_WALK
ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
All properties solved without resorting to model-checking.
Total runtime 16527 ms.

BK_STOP 1716270350946

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

+ export BINDIR=/home/mcc/BenchKit/bin//../itstools/bin//../
+ BINDIR=/home/mcc/BenchKit/bin//../itstools/bin//../
++ pwd
+ export MODEL=/home/mcc/execution
+ MODEL=/home/mcc/execution
+ [[ ReachabilityFireability = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution ReachabilityFireability -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600
+ 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//../itstools/bin//..//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202405141337.jar
+ VERSION=202405141337
+ echo 'Running Version 202405141337'
+ /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/its-tools -pnfolder /home/mcc/execution -examination ReachabilityFireability -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600

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="CloudReconfiguration-PT-309"
export BK_EXAMINATION="ReachabilityFireability"
export BK_TOOL="itstools"
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 2-5568"
echo " Executing tool itstools"
echo " Input is CloudReconfiguration-PT-309, examination is ReachabilityFireability"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r092-tall-171624188800183"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/CloudReconfiguration-PT-309.tgz
mv CloudReconfiguration-PT-309 execution
cd execution
if [ "ReachabilityFireability" = "ReachabilityDeadlock" ] || [ "ReachabilityFireability" = "UpperBounds" ] || [ "ReachabilityFireability" = "QuasiLiveness" ] || [ "ReachabilityFireability" = "StableMarking" ] || [ "ReachabilityFireability" = "Liveness" ] || [ "ReachabilityFireability" = "OneSafe" ] || [ "ReachabilityFireability" = "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 [ "ReachabilityFireability" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "ReachabilityFireability" != "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 "ReachabilityFireability.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property ReachabilityFireability.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "ReachabilityFireability.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 '' ReachabilityFireability.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "ReachabilityFireability" = "ReachabilityDeadlock" ] || [ "ReachabilityFireability" = "QuasiLiveness" ] || [ "ReachabilityFireability" = "StableMarking" ] || [ "ReachabilityFireability" = "Liveness" ] || [ "ReachabilityFireability" = "OneSafe" ] ; then
echo "FORMULA_NAME ReachabilityFireability"
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 ;