Execution Chart

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Trace from the execution

Formatting '/data/fkordon/mcc2025-input.r044-tall-174854028100239.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2025-input.qcow2 backing_fmt=qcow2 cluster_size=65536 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
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=====================================================================
Generated by BenchKit 2-5832
Executing tool itstools
Input is CloudReconfiguration-PT-304, examination is ReachabilityFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r044-tall-174854028100239
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 1.0M
-rw-r--r-- 1 mcc users 7.1K May 29 14:47 CTLCardinality.txt
-rw-r--r-- 1 mcc users 75K May 29 14:47 CTLCardinality.xml
-rw-r--r-- 1 mcc users 4.3K May 29 14:47 CTLFireability.txt
-rw-r--r-- 1 mcc users 34K May 29 14:47 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K May 29 14:32 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.8K May 29 14:32 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 4.0K May 29 14:47 LTLCardinality.txt
-rw-r--r-- 1 mcc users 28K May 29 14:47 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.4K May 29 14:47 LTLFireability.txt
-rw-r--r-- 1 mcc users 17K May 29 14:47 LTLFireability.xml
-rw-r--r-- 1 mcc users 8.0K May 29 14:47 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 76K May 29 14:47 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 6.7K May 29 14:47 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 51K May 29 14:47 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.8K May 29 14:47 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.8K May 29 14:47 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 May 29 14:32 equiv_col
-rw-r--r-- 1 mcc users 4 May 29 14:32 instance
-rw-r--r-- 1 mcc users 6 May 29 14:32 iscolored
-rw-r--r-- 1 mcc users 660K May 29 14:32 model.pnml

--------------------
content from stdout:

=== Data for post analysis generated by BenchKit (invocation template)

The expected result is a vector of booleans
BOOL_VECTOR

echo here is the order used to build the result vector(from xml file)
FORMULA_NAME CloudReconfiguration-PT-304-ReachabilityFireability-2025-00
FORMULA_NAME CloudReconfiguration-PT-304-ReachabilityFireability-2025-01
FORMULA_NAME CloudReconfiguration-PT-304-ReachabilityFireability-2025-02
FORMULA_NAME CloudReconfiguration-PT-304-ReachabilityFireability-2025-03
FORMULA_NAME CloudReconfiguration-PT-304-ReachabilityFireability-2025-04
FORMULA_NAME CloudReconfiguration-PT-304-ReachabilityFireability-2025-05
FORMULA_NAME CloudReconfiguration-PT-304-ReachabilityFireability-2025-06
FORMULA_NAME CloudReconfiguration-PT-304-ReachabilityFireability-2025-07
FORMULA_NAME CloudReconfiguration-PT-304-ReachabilityFireability-2025-08
FORMULA_NAME CloudReconfiguration-PT-304-ReachabilityFireability-2025-09
FORMULA_NAME CloudReconfiguration-PT-304-ReachabilityFireability-2025-10
FORMULA_NAME CloudReconfiguration-PT-304-ReachabilityFireability-2025-11
FORMULA_NAME CloudReconfiguration-PT-304-ReachabilityFireability-2025-12
FORMULA_NAME CloudReconfiguration-PT-304-ReachabilityFireability-2025-13
FORMULA_NAME CloudReconfiguration-PT-304-ReachabilityFireability-2025-14
FORMULA_NAME CloudReconfiguration-PT-304-ReachabilityFireability-2025-15

=== Now, execution of the tool begins

BK_START 1748584755032

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-304
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
ReachabilityFireability PT
Running Version 202505121319
[2025-05-30 05:59:16] [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]
[2025-05-30 05:59:16] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2025-05-30 05:59:16] [INFO ] Load time of PNML (sax parser for PT used): 148 ms
[2025-05-30 05:59:16] [INFO ] Transformed 2584 places.
[2025-05-30 05:59:16] [INFO ] Transformed 3094 transitions.
[2025-05-30 05:59:16] [INFO ] Found NUPN structural information;
[2025-05-30 05:59:16] [INFO ] Parsed PT model containing 2584 places and 3094 transitions and 6459 arcs in 252 ms.
Parsed 16 properties from file /home/mcc/execution/ReachabilityFireability.xml in 13 ms.
Working with output stream class java.io.PrintStream
RANDOM walk for 40000 steps (308 resets) in 2024 ms. (19 steps per ms) remains 12/16 properties
FORMULA CloudReconfiguration-PT-304-ReachabilityFireability-2025-13 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA CloudReconfiguration-PT-304-ReachabilityFireability-2025-08 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA CloudReconfiguration-PT-304-ReachabilityFireability-2025-03 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA CloudReconfiguration-PT-304-ReachabilityFireability-2025-02 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
[2025-05-30 05:59:17] [INFO ] Flatten gal took : 369 ms
BEST_FIRST walk for 40003 steps (78 resets) in 407 ms. (98 steps per ms) remains 11/12 properties
FORMULA CloudReconfiguration-PT-304-ReachabilityFireability-2025-00 FALSE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 40002 steps (81 resets) in 256 ms. (155 steps per ms) remains 11/11 properties
BEST_FIRST walk for 40004 steps (39 resets) in 91 ms. (434 steps per ms) remains 11/11 properties
[2025-05-30 05:59:17] [INFO ] Flatten gal took : 165 ms
BEST_FIRST walk for 40001 steps (88 resets) in 165 ms. (240 steps per ms) remains 11/11 properties
BEST_FIRST walk for 40003 steps (85 resets) in 222 ms. (179 steps per ms) remains 11/11 properties
[2025-05-30 05:59:17] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality7833862718044825869.gal : 88 ms
BEST_FIRST walk for 40003 steps (82 resets) in 143 ms. (277 steps per ms) remains 11/11 properties
[2025-05-30 05:59:17] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality6386382313050073295.prop : 2 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality7833862718044825869.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality6386382313050073295.prop' '--nowitness' '--gen-order' 'FOLLOW'
BEST_FIRST walk for 40002 steps (84 resets) in 160 ms. (248 steps per ms) remains 11/11 properties

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...328
BEST_FIRST walk for 40004 steps (73 resets) in 231 ms. (172 steps per ms) remains 11/11 properties
BEST_FIRST walk for 40004 steps (88 resets) in 250 ms. (159 steps per ms) remains 11/11 properties
BEST_FIRST walk for 40001 steps (86 resets) in 171 ms. (232 steps per ms) remains 11/11 properties
Loading property file /tmp/ReachabilityCardinality6386382313050073295.prop.
BEST_FIRST walk for 40004 steps (84 resets) in 144 ms. (275 steps per ms) remains 11/11 properties
BEST_FIRST walk for 40002 steps (82 resets) in 153 ms. (259 steps per ms) remains 11/11 properties
// Phase 1: matrix 3094 rows 2584 cols
[2025-05-30 05:59:18] [INFO ] Computed 4 invariants in 53 ms
Excessive predecessor constraint size, skipping predecessor.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/130 variables, 130/130 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/130 variables, 0/130 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 2 (OVERLAPS) 2443/2573 variables, 4/134 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/2573 variables, 2443/2577 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/2573 variables, 0/2577 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 5 (OVERLAPS) 3084/5657 variables, 2573/5150 constraints. Problems are: Problem set: 0 solved, 11 unsolved
SDD proceeding with computation,11 properties remain. new max is 4
SDD size :1 after 4
SDD proceeding with computation,11 properties remain. new max is 8
SDD size :4 after 5
SDD proceeding with computation,11 properties remain. new max is 16
SDD size :5 after 6
SDD proceeding with computation,11 properties remain. new max is 32
SDD size :6 after 7
SDD proceeding with computation,11 properties remain. new max is 64
SDD size :7 after 8
At refinement iteration 6 (INCLUDED_ONLY) 0/5657 variables, 0/5150 constraints. Problems are: Problem set: 0 solved, 11 unsolved
SDD proceeding with computation,11 properties remain. new max is 128
SDD size :8 after 9
SDD proceeding with computation,11 properties remain. new max is 256
SDD size :9 after 10
SDD proceeding with computation,11 properties remain. new max is 512
SDD size :10 after 11
SDD proceeding with computation,11 properties remain. new max is 1024
SDD size :11 after 20
At refinement iteration 7 (OVERLAPS) 2/5659 variables, 1/5151 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/5659 variables, 1/5152 constraints. Problems are: Problem set: 0 solved, 11 unsolved
SDD proceeding with computation,11 properties remain. new max is 2048
SDD size :20 after 453
SDD proceeding with computation,11 properties remain. new max is 4096
SDD size :453 after 2460
SDD proceeding with computation,11 properties remain. new max is 8192
SDD size :2460 after 6416
At refinement iteration 9 (INCLUDED_ONLY) 0/5659 variables, 0/5152 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 10 (OVERLAPS) 2/5661 variables, 1/5153 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/5661 variables, 1/5154 constraints. Problems are: Problem set: 0 solved, 11 unsolved
Reachability property CloudReconfiguration-PT-304-ReachabilityFireability-2025-09 is true.
FORMULA CloudReconfiguration-PT-304-ReachabilityFireability-2025-09 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING
Invariant property CloudReconfiguration-PT-304-ReachabilityFireability-2025-07 does not hold.
FORMULA CloudReconfiguration-PT-304-ReachabilityFireability-2025-07 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING
Reachability property CloudReconfiguration-PT-304-ReachabilityFireability-2025-04 is true.
FORMULA CloudReconfiguration-PT-304-ReachabilityFireability-2025-04 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING
SDD proceeding with computation,8 properties remain. new max is 8192
SDD size :6416 after 48708
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 5661/5678 variables, and 5154 constraints, problems are : Problem set: 3 solved, 8 unsolved in 5593 ms.
Refiners :[Domain max(s): 2575/2584 constraints, Generalized P Invariants (flows): 4/4 constraints, State Equation: 2575/2584 constraints, PredecessorRefiner: 11/9 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 3 solved, 8 unsolved
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/127 variables, 127/127 constraints. Problems are: Problem set: 3 solved, 8 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/127 variables, 0/127 constraints. Problems are: Problem set: 3 solved, 8 unsolved
SDD proceeding with computation,8 properties remain. new max is 16384
SDD size :48708 after 413787
At refinement iteration 2 (OVERLAPS) 2446/2573 variables, 4/131 constraints. Problems are: Problem set: 3 solved, 8 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/2573 variables, 2446/2577 constraints. Problems are: Problem set: 3 solved, 8 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/2573 variables, 0/2577 constraints. Problems are: Problem set: 3 solved, 8 unsolved
Reachability property CloudReconfiguration-PT-304-ReachabilityFireability-2025-15 is true.
FORMULA CloudReconfiguration-PT-304-ReachabilityFireability-2025-15 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING
SDD proceeding with computation,7 properties remain. new max is 16384
SDD size :413787 after 3.64505e+06
Problem CloudReconfiguration-PT-304-ReachabilityFireability-2025-10 is UNSAT
FORMULA CloudReconfiguration-PT-304-ReachabilityFireability-2025-10 TRUE TECHNIQUES SMT_REFINEMENT
At refinement iteration 5 (OVERLAPS) 3084/5657 variables, 2573/5150 constraints. Problems are: Problem set: 5 solved, 6 unsolved
SDD proceeding with computation,7 properties remain. new max is 32768
SDD size :3.64505e+06 after 8.63678e+06
At refinement iteration 6 (INCLUDED_ONLY) 0/5657 variables, 5/5155 constraints. Problems are: Problem set: 5 solved, 6 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 5657/5678 variables, and 5155 constraints, problems are : Problem set: 5 solved, 6 unsolved in 5030 ms.
Refiners :[Domain max(s): 2573/2584 constraints, Generalized P Invariants (flows): 4/4 constraints, State Equation: 2573/2584 constraints, PredecessorRefiner: 7/9 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 10806ms problems are : Problem set: 5 solved, 6 unsolved
Skipping Parikh replay, no witness traces provided.
Support contains 64 out of 2584 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 2584/2584 places, 3094/3094 transitions.
Graph (trivial) has 2811 edges and 2584 vertex of which 713 / 2584 are part of one of the 57 SCC in 16 ms
Free SCC test removed 656 places
Drop transitions (Empty/Sink Transition effects.) removed 798 transitions
Reduce isomorphic transitions removed 798 transitions.
Graph (complete) has 2574 edges and 1928 vertex of which 1914 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 6 transitions
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 8 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 1176 transitions
Trivial Post-agglo rules discarded 1176 transitions
Performed 1176 trivial Post agglomeration. Transition count delta: 1176
Iterating post reduction 0 with 1184 rules applied. Total rules applied 1186 place count 1914 transition count 1103
Reduce places removed 1176 places and 0 transitions.
Ensure Unique test removed 74 transitions
Reduce isomorphic transitions removed 74 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 53 transitions
Trivial Post-agglo rules discarded 53 transitions
Performed 53 trivial Post agglomeration. Transition count delta: 53
Iterating post reduction 1 with 1303 rules applied. Total rules applied 2489 place count 738 transition count 976
Reduce places removed 53 places and 0 transitions.
Ensure Unique test removed 7 transitions
Reduce isomorphic transitions removed 7 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 5 transitions
Trivial Post-agglo rules discarded 5 transitions
Performed 5 trivial Post agglomeration. Transition count delta: 5
Iterating post reduction 2 with 65 rules applied. Total rules applied 2554 place count 685 transition count 964
Reduce places removed 5 places and 0 transitions.
Ensure Unique test removed 3 transitions
Reduce isomorphic transitions removed 3 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 3 with 10 rules applied. Total rules applied 2564 place count 680 transition count 959
Reduce places removed 2 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 4 with 4 rules applied. Total rules applied 2568 place count 678 transition count 957
Reduce places removed 1 places and 0 transitions.
Performed 56 Post agglomeration using F-continuation condition.Transition count delta: 56
Iterating post reduction 5 with 57 rules applied. Total rules applied 2625 place count 677 transition count 901
Reduce places removed 56 places and 0 transitions.
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Iterating post reduction 6 with 59 rules applied. Total rules applied 2684 place count 621 transition count 898
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 7 with 1 rules applied. Total rules applied 2685 place count 620 transition count 898
Performed 27 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 8 with 27 Pre rules applied. Total rules applied 2685 place count 620 transition count 871
Deduced a syphon composed of 27 places in 2 ms
Reduce places removed 27 places and 0 transitions.
Iterating global reduction 8 with 54 rules applied. Total rules applied 2739 place count 593 transition count 871
Discarding 77 places :
Symmetric choice reduction at 8 with 77 rule applications. Total rules 2816 place count 516 transition count 794
Iterating global reduction 8 with 77 rules applied. Total rules applied 2893 place count 516 transition count 794
Performed 3 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 8 with 3 Pre rules applied. Total rules applied 2893 place count 516 transition count 791
Deduced a syphon composed of 3 places in 1 ms
Reduce places removed 3 places and 0 transitions.
Iterating global reduction 8 with 6 rules applied. Total rules applied 2899 place count 513 transition count 791
Discarding 55 places :
Symmetric choice reduction at 8 with 55 rule applications. Total rules 2954 place count 458 transition count 736
Iterating global reduction 8 with 55 rules applied. Total rules applied 3009 place count 458 transition count 736
Ensure Unique test removed 10 transitions
Reduce isomorphic transitions removed 10 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 9 transitions
Trivial Post-agglo rules discarded 9 transitions
Performed 9 trivial Post agglomeration. Transition count delta: 9
Iterating post reduction 8 with 19 rules applied. Total rules applied 3028 place count 458 transition count 717
Reduce places removed 9 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 9 with 11 rules applied. Total rules applied 3039 place count 449 transition count 715
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 10 with 1 rules applied. Total rules applied 3040 place count 448 transition count 715
Discarding 13 places :
Symmetric choice reduction at 11 with 13 rule applications. Total rules 3053 place count 435 transition count 695
Iterating global reduction 11 with 13 rules applied. Total rules applied 3066 place count 435 transition count 695
Ensure Unique test removed 4 transitions
Reduce isomorphic transitions removed 4 transitions.
Iterating post reduction 11 with 4 rules applied. Total rules applied 3070 place count 435 transition count 691
Discarding 6 places :
Symmetric choice reduction at 12 with 6 rule applications. Total rules 3076 place count 429 transition count 679
Iterating global reduction 12 with 6 rules applied. Total rules applied 3082 place count 429 transition count 679
Discarding 3 places :
Symmetric choice reduction at 12 with 3 rule applications. Total rules 3085 place count 426 transition count 673
Iterating global reduction 12 with 3 rules applied. Total rules applied 3088 place count 426 transition count 673
Performed 177 Post agglomeration using F-continuation condition with reduction of 67 identical transitions.
Deduced a syphon composed of 177 places in 0 ms
Reduce places removed 177 places and 0 transitions.
Iterating global reduction 12 with 354 rules applied. Total rules applied 3442 place count 249 transition count 429
Ensure Unique test removed 10 transitions
Reduce isomorphic transitions removed 10 transitions.
Iterating post reduction 12 with 10 rules applied. Total rules applied 3452 place count 249 transition count 419
Performed 2 Post agglomeration using F-continuation condition.Transition count delta: 2
Deduced a syphon composed of 2 places in 0 ms
Reduce places removed 2 places and 0 transitions.
Iterating global reduction 13 with 4 rules applied. Total rules applied 3456 place count 247 transition count 417
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 13 with 2 rules applied. Total rules applied 3458 place count 247 transition count 415
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 1 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 14 with 2 rules applied. Total rules applied 3460 place count 246 transition count 414
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 14 with 2 rules applied. Total rules applied 3462 place count 246 transition count 412
Performed 46 Post agglomeration using F-continuation condition with reduction of 19 identical transitions.
Deduced a syphon composed of 46 places in 1 ms
Reduce places removed 46 places and 0 transitions.
Iterating global reduction 15 with 92 rules applied. Total rules applied 3554 place count 200 transition count 453
Ensure Unique test removed 40 transitions
Reduce isomorphic transitions removed 40 transitions.
Iterating post reduction 15 with 40 rules applied. Total rules applied 3594 place count 200 transition count 413
Discarding 16 places :
Symmetric choice reduction at 16 with 16 rule applications. Total rules 3610 place count 184 transition count 381
Iterating global reduction 16 with 16 rules applied. Total rules applied 3626 place count 184 transition count 381
Ensure Unique test removed 4 transitions
Reduce isomorphic transitions removed 4 transitions.
Iterating post reduction 16 with 4 rules applied. Total rules applied 3630 place count 184 transition count 377
Discarding 4 places :
Symmetric choice reduction at 17 with 4 rule applications. Total rules 3634 place count 180 transition count 369
Iterating global reduction 17 with 4 rules applied. Total rules applied 3638 place count 180 transition count 369
Drop transitions (Redundant composition of simpler transitions.) removed 24 transitions
Redundant transition composition rules discarded 24 transitions
Iterating global reduction 17 with 24 rules applied. Total rules applied 3662 place count 180 transition count 345
Discarding 1 places :
Symmetric choice reduction at 17 with 1 rule applications. Total rules 3663 place count 179 transition count 344
Iterating global reduction 17 with 1 rules applied. Total rules applied 3664 place count 179 transition count 344
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 17 with 1 rules applied. Total rules applied 3665 place count 179 transition count 343
Free-agglomeration rule applied 11 times.
Iterating global reduction 18 with 11 rules applied. Total rules applied 3676 place count 179 transition count 332
Reduce places removed 11 places and 0 transitions.
Iterating post reduction 18 with 11 rules applied. Total rules applied 3687 place count 168 transition count 332
Drop transitions (Redundant composition of simpler transitions.) removed 3 transitions
Redundant transition composition rules discarded 3 transitions
Iterating global reduction 19 with 3 rules applied. Total rules applied 3690 place count 168 transition count 329
Partial Free-agglomeration rule applied 12 times.
Drop transitions (Partial Free agglomeration) removed 12 transitions
Iterating global reduction 19 with 12 rules applied. Total rules applied 3702 place count 168 transition count 329
Drop transitions (Redundant composition of simpler transitions.) removed 1 transitions
Redundant transition composition rules discarded 1 transitions
Iterating global reduction 19 with 1 rules applied. Total rules applied 3703 place count 168 transition count 328
Partial Post-agglomeration rule applied 3 times.
Drop transitions (Partial Post agglomeration) removed 3 transitions
Iterating global reduction 19 with 3 rules applied. Total rules applied 3706 place count 168 transition count 328
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 19 with 1 rules applied. Total rules applied 3707 place count 167 transition count 327
Applied a total of 3707 rules in 398 ms. Remains 167 /2584 variables (removed 2417) and now considering 327/3094 (removed 2767) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 411 ms. Remains : 167/2584 places, 327/3094 transitions.
RANDOM walk for 40000 steps (2387 resets) in 884 ms. (45 steps per ms) remains 2/6 properties
FORMULA CloudReconfiguration-PT-304-ReachabilityFireability-2025-12 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA CloudReconfiguration-PT-304-ReachabilityFireability-2025-11 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA CloudReconfiguration-PT-304-ReachabilityFireability-2025-06 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA CloudReconfiguration-PT-304-ReachabilityFireability-2025-05 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
BEST_FIRST walk for 40003 steps (501 resets) in 92 ms. (430 steps per ms) remains 2/2 properties
BEST_FIRST walk for 40004 steps (492 resets) in 67 ms. (588 steps per ms) remains 2/2 properties
[2025-05-30 05:59:29] [INFO ] Flow matrix only has 318 transitions (discarded 9 similar events)
// Phase 1: matrix 318 rows 167 cols
[2025-05-30 05:59:29] [INFO ] Computed 3 invariants in 2 ms
[2025-05-30 05:59:29] [INFO ] State equation strengthened by 5 read => feed constraints.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/18 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 2 unsolved
Problem CloudReconfiguration-PT-304-ReachabilityFireability-2025-01 is UNSAT
FORMULA CloudReconfiguration-PT-304-ReachabilityFireability-2025-01 FALSE TECHNIQUES SMT_REFINEMENT
Problem CloudReconfiguration-PT-304-ReachabilityFireability-2025-14 is UNSAT
FORMULA CloudReconfiguration-PT-304-ReachabilityFireability-2025-14 FALSE TECHNIQUES SMT_REFINEMENT
After SMT solving in domain Real declared 142/485 variables, and 3 constraints, problems are : Problem set: 2 solved, 0 unsolved in 41 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/167 constraints, ReadFeed: 0/5 constraints, PredecessorRefiner: 2/2 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 53ms problems are : Problem set: 2 solved, 0 unsolved
Skipping Parikh replay, no witness traces provided.
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 13561 ms.

BK_STOP 1748584769825

--------------------
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
++ sed s/.jar//
++ perl -pe 's/.*\.//g'
++ ls /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202505121319.jar
+ VERSION=202505121319
+ echo 'Running Version 202505121319'
+ /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-304"
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 2-5832"
echo " Executing tool itstools"
echo " Input is CloudReconfiguration-PT-304, 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 r044-tall-174854028100239"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/CloudReconfiguration-PT-304.tgz
mv CloudReconfiguration-PT-304 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.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 ;