Execution Chart

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

Trace from the execution

Formatting '/data/fkordon/mcc2026-input.r066-tall-177946967600206.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2026-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 2-5973
Executing tool itstools
Input is CloudReconfiguration-PT-312, examination is ReachabilityCardinality
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r066-tall-177946967600206
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 1.1M
-rw-r--r-- 1 mcc users 6.9K Mar 6 08:55 CTLCardinality.txt
-rw-r--r-- 1 mcc users 70K Mar 6 08:55 CTLCardinality.xml
-rw-r--r-- 1 mcc users 4.7K Mar 6 08:55 CTLFireability.txt
-rw-r--r-- 1 mcc users 36K Mar 6 08:55 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Mar 3 18:30 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.8K Mar 3 18:30 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 4.2K Mar 15 08:24 LTLCardinality.txt
-rw-r--r-- 1 mcc users 29K Mar 15 08:24 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.4K Mar 15 08:25 LTLFireability.txt
-rw-r--r-- 1 mcc users 17K Mar 15 08:25 LTLFireability.xml
-rw-r--r-- 1 mcc users 8.2K Mar 6 08:55 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 78K Mar 6 08:55 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 11K Mar 6 08:55 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 88K Mar 6 08:55 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.8K Mar 15 08:25 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.8K Mar 15 08:25 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 equiv_col
-rw-r--r-- 1 mcc users 4 Mar 3 18:30 instance
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 iscolored
-rw-r--r-- 1 mcc users 660K Mar 3 18:30 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-312-ReachabilityCardinality-2024-00
FORMULA_NAME CloudReconfiguration-PT-312-ReachabilityCardinality-2024-01
FORMULA_NAME CloudReconfiguration-PT-312-ReachabilityCardinality-2024-02
FORMULA_NAME CloudReconfiguration-PT-312-ReachabilityCardinality-2024-03
FORMULA_NAME CloudReconfiguration-PT-312-ReachabilityCardinality-2024-04
FORMULA_NAME CloudReconfiguration-PT-312-ReachabilityCardinality-2024-05
FORMULA_NAME CloudReconfiguration-PT-312-ReachabilityCardinality-2024-06
FORMULA_NAME CloudReconfiguration-PT-312-ReachabilityCardinality-2024-07
FORMULA_NAME CloudReconfiguration-PT-312-ReachabilityCardinality-2024-08
FORMULA_NAME CloudReconfiguration-PT-312-ReachabilityCardinality-2024-09
FORMULA_NAME CloudReconfiguration-PT-312-ReachabilityCardinality-2024-10
FORMULA_NAME CloudReconfiguration-PT-312-ReachabilityCardinality-2024-11
FORMULA_NAME CloudReconfiguration-PT-312-ReachabilityCardinality-2024-12
FORMULA_NAME CloudReconfiguration-PT-312-ReachabilityCardinality-2024-13
FORMULA_NAME CloudReconfiguration-PT-312-ReachabilityCardinality-2024-14
FORMULA_NAME CloudReconfiguration-PT-312-ReachabilityCardinality-2024-15

=== Now, execution of the tool begins

BK_START 1779509491978

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=ReachabilityCardinality
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=CloudReconfiguration-PT-312
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
ReachabilityCardinality PT
Running Version 202604301425
[2026-05-23 04:11:33] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, ReachabilityCardinality, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2026-05-23 04:11:33] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-23 04:11:33] [INFO ] Load time of PNML (sax parser for PT used): 139 ms
[2026-05-23 04:11:33] [INFO ] Transformed 2585 places.
[2026-05-23 04:11:33] [INFO ] Transformed 3095 transitions.
[2026-05-23 04:11:33] [INFO ] Found NUPN structural information;
[2026-05-23 04:11:33] [INFO ] Parsed PT model containing 2585 places and 3095 transitions and 6463 arcs in 240 ms.
Parsed 16 properties from file /home/mcc/execution/ReachabilityCardinality.xml in 14 ms.
Working with output stream class java.io.PrintStream
FORMULA CloudReconfiguration-PT-312-ReachabilityCardinality-2024-09 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA CloudReconfiguration-PT-312-ReachabilityCardinality-2024-12 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
RANDOM walk for 40000 steps (279 resets) in 1261 ms. (31 steps per ms) remains 11/14 properties
FORMULA CloudReconfiguration-PT-312-ReachabilityCardinality-2024-13 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA CloudReconfiguration-PT-312-ReachabilityCardinality-2024-04 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA CloudReconfiguration-PT-312-ReachabilityCardinality-2024-02 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
BEST_FIRST walk for 40003 steps (80 resets) in 405 ms. (98 steps per ms) remains 11/11 properties
BEST_FIRST walk for 40003 steps (75 resets) in 332 ms. (120 steps per ms) remains 11/11 properties
BEST_FIRST walk for 40003 steps (75 resets) in 193 ms. (206 steps per ms) remains 11/11 properties
[2026-05-23 04:11:34] [INFO ] Flatten gal took : 301 ms
BEST_FIRST walk for 40003 steps (76 resets) in 143 ms. (277 steps per ms) remains 11/11 properties
BEST_FIRST walk for 40003 steps (75 resets) in 177 ms. (224 steps per ms) remains 11/11 properties
[2026-05-23 04:11:34] [INFO ] Flatten gal took : 116 ms
BEST_FIRST walk for 40001 steps (76 resets) in 148 ms. (268 steps per ms) remains 11/11 properties
[2026-05-23 04:11:34] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality917999123414709727.gal : 111 ms
[2026-05-23 04:11:34] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality1844889970972614262.prop : 1 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202604301425/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality917999123414709727.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality1844889970972614262.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202604301425/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...327
BEST_FIRST walk for 40003 steps (76 resets) in 779 ms. (51 steps per ms) remains 11/11 properties
BEST_FIRST walk for 40003 steps (78 resets) in 124 ms. (320 steps per ms) remains 11/11 properties
Loading property file /tmp/ReachabilityCardinality1844889970972614262.prop.
BEST_FIRST walk for 40003 steps (78 resets) in 376 ms. (106 steps per ms) remains 11/11 properties
BEST_FIRST walk for 40002 steps (77 resets) in 138 ms. (287 steps per ms) remains 11/11 properties
BEST_FIRST walk for 40002 steps (77 resets) in 176 ms. (226 steps per ms) remains 11/11 properties
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-3173135890153617917.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-2738701999896292642.kers'
[2026-05-23 04:11:34] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-3173135890153617917.kers, --Pflows, --basisKERS=/tmp/petrispot-output-2738701999896292642.kers]
Culled 0 columns in 1 ms.
// Phase 1: matrix 3095 rows 2585 cols 6463 entries
Finished phase 1 with 2580 SingleSign rule and 1 generalized
[2026-05-23 04:11:34] [INFO ] Computed 4 invariants in 15 ms
Computed 4 P flows in 16 ms.
Exported basis to /tmp/petrispot-output-2738701999896292642.kers
Total runtime 19 ms.
Excessive predecessor constraint size, skipping predecessor.
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/103 variables, 103/103 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/103 variables, 0/103 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 2 (OVERLAPS) 2473/2576 variables, 4/107 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/2576 variables, 2473/2580 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/2576 variables, 0/2580 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 5 (OVERLAPS) 3089/5665 variables, 2576/5156 constraints. Problems are: Problem set: 0 solved, 11 unsolved
SDD proceeding with computation,11 properties remain. new max is 4
SDD size :1 after 3
SDD proceeding with computation,11 properties remain. new max is 8
SDD size :3 after 4
SDD proceeding with computation,11 properties remain. new max is 16
SDD size :4 after 5
SDD proceeding with computation,11 properties remain. new max is 32
SDD size :5 after 6
SDD proceeding with computation,11 properties remain. new max is 64
SDD size :6 after 7
SDD proceeding with computation,11 properties remain. new max is 128
SDD size :7 after 8
SDD proceeding with computation,11 properties remain. new max is 256
SDD size :8 after 9
SDD proceeding with computation,11 properties remain. new max is 512
SDD size :9 after 11
SDD proceeding with computation,11 properties remain. new max is 1024
SDD size :11 after 20
At refinement iteration 6 (INCLUDED_ONLY) 0/5665 variables, 0/5156 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 7 (OVERLAPS) 7/5672 variables, 4/5160 constraints. Problems are: Problem set: 0 solved, 11 unsolved
SDD proceeding with computation,11 properties remain. new max is 2048
SDD size :20 after 241
At refinement iteration 8 (INCLUDED_ONLY) 0/5672 variables, 4/5164 constraints. Problems are: Problem set: 0 solved, 11 unsolved
SDD proceeding with computation,11 properties remain. new max is 4096
SDD size :241 after 2364
Invariant property CloudReconfiguration-PT-312-ReachabilityCardinality-2024-08 does not hold.
FORMULA CloudReconfiguration-PT-312-ReachabilityCardinality-2024-08 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING
Reachability property CloudReconfiguration-PT-312-ReachabilityCardinality-2024-07 is true.
FORMULA CloudReconfiguration-PT-312-ReachabilityCardinality-2024-07 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING
Reachability property CloudReconfiguration-PT-312-ReachabilityCardinality-2024-05 is true.
FORMULA CloudReconfiguration-PT-312-ReachabilityCardinality-2024-05 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING
Reachability property CloudReconfiguration-PT-312-ReachabilityCardinality-2024-03 is true.
FORMULA CloudReconfiguration-PT-312-ReachabilityCardinality-2024-03 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING
SDD proceeding with computation,7 properties remain. new max is 4096
SDD size :2364 after 6510
At refinement iteration 9 (INCLUDED_ONLY) 0/5672 variables, 0/5164 constraints. Problems are: Problem set: 4 solved, 7 unsolved
At refinement iteration 10 (OVERLAPS) 6/5678 variables, 3/5167 constraints. Problems are: Problem set: 4 solved, 7 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/5678 variables, 3/5170 constraints. Problems are: Problem set: 4 solved, 7 unsolved
Error getting values : (error "Timeout of Z3 solver reached")
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 5678/5680 variables, and 5170 constraints, problems are : Problem set: 4 solved, 7 unsolved in 5055 ms.
Refiners :[Domain max(s): 2583/2585 constraints, Generalized P Invariants (flows): 4/4 constraints, State Equation: 2583/2585 constraints, PredecessorRefiner: 11/10 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 4 solved, 7 unsolved
SDD proceeding with computation,7 properties remain. new max is 8192
SDD size :6510 after 11363
At refinement iteration 0 (INCLUDED_ONLY) 0/61 variables, 61/61 constraints. Problems are: Problem set: 4 solved, 7 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/61 variables, 0/61 constraints. Problems are: Problem set: 4 solved, 7 unsolved
At refinement iteration 2 (OVERLAPS) 2514/2575 variables, 4/65 constraints. Problems are: Problem set: 4 solved, 7 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/2575 variables, 2514/2579 constraints. Problems are: Problem set: 4 solved, 7 unsolved
SDD proceeding with computation,7 properties remain. new max is 16384
SDD size :11363 after 67833
At refinement iteration 4 (INCLUDED_ONLY) 0/2575 variables, 0/2579 constraints. Problems are: Problem set: 4 solved, 7 unsolved
At refinement iteration 5 (OVERLAPS) 3087/5662 variables, 2575/5154 constraints. Problems are: Problem set: 4 solved, 7 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/5662 variables, 6/5160 constraints. Problems are: Problem set: 4 solved, 7 unsolved
SDD proceeding with computation,7 properties remain. new max is 32768
SDD size :67833 after 3.2822e+06
At refinement iteration 7 (INCLUDED_ONLY) 0/5662 variables, 0/5160 constraints. Problems are: Problem set: 4 solved, 7 unsolved
At refinement iteration 8 (OVERLAPS) 6/5668 variables, 3/5163 constraints. Problems are: Problem set: 4 solved, 7 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/5668 variables, 3/5166 constraints. Problems are: Problem set: 4 solved, 7 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/5668 variables, 1/5167 constraints. Problems are: Problem set: 4 solved, 7 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 5668/5680 variables, and 5167 constraints, problems are : Problem set: 4 solved, 7 unsolved in 5021 ms.
Refiners :[Domain max(s): 2578/2585 constraints, Generalized P Invariants (flows): 4/4 constraints, State Equation: 2578/2585 constraints, PredecessorRefiner: 7/10 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 10290ms problems are : Problem set: 4 solved, 7 unsolved
Skipping Parikh replay, no witness traces provided.
Support contains 61 out of 2585 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 2585/2585 places, 3095/3095 transitions.
Graph (trivial) has 2841 edges and 2585 vertex of which 807 / 2585 are part of one of the 62 SCC in 18 ms
Free SCC test removed 745 places
Drop transitions (Empty/Sink Transition effects.) removed 911 transitions
Reduce isomorphic transitions removed 911 transitions.
Graph (complete) has 2464 edges and 1840 vertex of which 1826 are kept as prefixes of interest. Removing 14 places using SCC suffix rule.7 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 9 transitions
Reduce isomorphic transitions removed 9 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 1139 transitions
Trivial Post-agglo rules discarded 1139 transitions
Performed 1139 trivial Post agglomeration. Transition count delta: 1139
Iterating post reduction 0 with 1148 rules applied. Total rules applied 1150 place count 1826 transition count 1027
Reduce places removed 1139 places and 0 transitions.
Ensure Unique test removed 70 transitions
Reduce isomorphic transitions removed 70 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 54 transitions
Trivial Post-agglo rules discarded 54 transitions
Performed 54 trivial Post agglomeration. Transition count delta: 54
Iterating post reduction 1 with 1263 rules applied. Total rules applied 2413 place count 687 transition count 903
Reduce places removed 54 places and 0 transitions.
Ensure Unique test removed 4 transitions
Reduce isomorphic transitions removed 4 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 2 with 60 rules applied. Total rules applied 2473 place count 633 transition count 897
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 2 transitions
Trivial Post-agglo rules discarded 2 transitions
Performed 2 trivial Post agglomeration. Transition count delta: 2
Iterating post reduction 3 with 5 rules applied. Total rules applied 2478 place count 631 transition count 894
Reduce places removed 2 places and 0 transitions.
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Performed 36 Post agglomeration using F-continuation condition.Transition count delta: 36
Iterating post reduction 4 with 39 rules applied. Total rules applied 2517 place count 629 transition count 857
Reduce places removed 36 places and 0 transitions.
Iterating post reduction 5 with 36 rules applied. Total rules applied 2553 place count 593 transition count 857
Performed 21 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 6 with 21 Pre rules applied. Total rules applied 2553 place count 593 transition count 836
Deduced a syphon composed of 21 places in 0 ms
Reduce places removed 21 places and 0 transitions.
Iterating global reduction 6 with 42 rules applied. Total rules applied 2595 place count 572 transition count 836
Discarding 79 places :
Symmetric choice reduction at 6 with 79 rule applications. Total rules 2674 place count 493 transition count 757
Iterating global reduction 6 with 79 rules applied. Total rules applied 2753 place count 493 transition count 757
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 6 with 1 rules applied. Total rules applied 2754 place count 493 transition count 756
Performed 6 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 7 with 6 Pre rules applied. Total rules applied 2754 place count 493 transition count 750
Deduced a syphon composed of 6 places in 1 ms
Reduce places removed 6 places and 0 transitions.
Iterating global reduction 7 with 12 rules applied. Total rules applied 2766 place count 487 transition count 750
Discarding 58 places :
Symmetric choice reduction at 7 with 58 rule applications. Total rules 2824 place count 429 transition count 692
Iterating global reduction 7 with 58 rules applied. Total rules applied 2882 place count 429 transition count 692
Ensure Unique test removed 14 transitions
Reduce isomorphic transitions removed 14 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 14 transitions
Trivial Post-agglo rules discarded 14 transitions
Performed 14 trivial Post agglomeration. Transition count delta: 14
Iterating post reduction 7 with 28 rules applied. Total rules applied 2910 place count 429 transition count 664
Reduce places removed 14 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 8 with 20 rules applied. Total rules applied 2930 place count 415 transition count 658
Reduce places removed 3 places and 0 transitions.
Iterating post reduction 9 with 3 rules applied. Total rules applied 2933 place count 412 transition count 658
Discarding 14 places :
Symmetric choice reduction at 10 with 14 rule applications. Total rules 2947 place count 398 transition count 637
Iterating global reduction 10 with 14 rules applied. Total rules applied 2961 place count 398 transition count 637
Ensure Unique test removed 5 transitions
Reduce isomorphic transitions removed 5 transitions.
Iterating post reduction 10 with 5 rules applied. Total rules applied 2966 place count 398 transition count 632
Discarding 5 places :
Symmetric choice reduction at 11 with 5 rule applications. Total rules 2971 place count 393 transition count 622
Iterating global reduction 11 with 5 rules applied. Total rules applied 2976 place count 393 transition count 622
Discarding 1 places :
Symmetric choice reduction at 11 with 1 rule applications. Total rules 2977 place count 392 transition count 620
Iterating global reduction 11 with 1 rules applied. Total rules applied 2978 place count 392 transition count 620
Performed 160 Post agglomeration using F-continuation condition with reduction of 59 identical transitions.
Deduced a syphon composed of 160 places in 0 ms
Reduce places removed 160 places and 0 transitions.
Iterating global reduction 11 with 320 rules applied. Total rules applied 3298 place count 232 transition count 401
Ensure Unique test removed 9 transitions
Reduce isomorphic transitions removed 9 transitions.
Iterating post reduction 11 with 9 rules applied. Total rules applied 3307 place count 232 transition count 392
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 12 with 2 rules applied. Total rules applied 3309 place count 231 transition count 391
Performed 39 Post agglomeration using F-continuation condition with reduction of 4 identical transitions.
Deduced a syphon composed of 39 places in 1 ms
Reduce places removed 39 places and 0 transitions.
Iterating global reduction 12 with 78 rules applied. Total rules applied 3387 place count 192 transition count 428
Ensure Unique test removed 37 transitions
Reduce isomorphic transitions removed 37 transitions.
Iterating post reduction 12 with 37 rules applied. Total rules applied 3424 place count 192 transition count 391
Discarding 15 places :
Symmetric choice reduction at 13 with 15 rule applications. Total rules 3439 place count 177 transition count 361
Iterating global reduction 13 with 15 rules applied. Total rules applied 3454 place count 177 transition count 361
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 13 with 1 rules applied. Total rules applied 3455 place count 177 transition count 360
Discarding 2 places :
Symmetric choice reduction at 14 with 2 rule applications. Total rules 3457 place count 175 transition count 356
Iterating global reduction 14 with 2 rules applied. Total rules applied 3459 place count 175 transition count 356
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: -15
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 14 with 2 rules applied. Total rules applied 3461 place count 174 transition count 371
Drop transitions (Redundant composition of simpler transitions.) removed 41 transitions
Redundant transition composition rules discarded 41 transitions
Iterating global reduction 14 with 41 rules applied. Total rules applied 3502 place count 174 transition count 330
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: -19
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 3504 place count 173 transition count 349
Free-agglomeration rule applied 19 times.
Iterating global reduction 14 with 19 rules applied. Total rules applied 3523 place count 173 transition count 330
Reduce places removed 19 places and 0 transitions.
Iterating post reduction 14 with 19 rules applied. Total rules applied 3542 place count 154 transition count 330
Drop transitions (Redundant composition of simpler transitions.) removed 3 transitions
Redundant transition composition rules discarded 3 transitions
Iterating global reduction 15 with 3 rules applied. Total rules applied 3545 place count 154 transition count 327
Partial Free-agglomeration rule applied 7 times.
Drop transitions (Partial Free agglomeration) removed 7 transitions
Iterating global reduction 15 with 7 rules applied. Total rules applied 3552 place count 154 transition count 327
Partial Post-agglomeration rule applied 3 times.
Drop transitions (Partial Post agglomeration) removed 3 transitions
Iterating global reduction 15 with 3 rules applied. Total rules applied 3555 place count 154 transition count 327
Drop transitions (Empty/Sink Transition effects.) removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 15 with 1 rules applied. Total rules applied 3556 place count 154 transition count 326
Applied a total of 3556 rules in 378 ms. Remains 154 /2585 variables (removed 2431) and now considering 326/3095 (removed 2769) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 389 ms. Remains : 154/2585 places, 326/3095 transitions.
RANDOM walk for 40000 steps (8 resets) in 1762 ms. (22 steps per ms) remains 6/7 properties
FORMULA CloudReconfiguration-PT-312-ReachabilityCardinality-2024-14 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
BEST_FIRST walk for 40003 steps (8 resets) in 256 ms. (155 steps per ms) remains 6/6 properties
BEST_FIRST walk for 40003 steps (8 resets) in 136 ms. (291 steps per ms) remains 5/6 properties
FORMULA CloudReconfiguration-PT-312-ReachabilityCardinality-2024-01 TRUE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 40004 steps (8 resets) in 195 ms. (204 steps per ms) remains 4/5 properties
FORMULA CloudReconfiguration-PT-312-ReachabilityCardinality-2024-06 TRUE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 40004 steps (8 resets) in 133 ms. (298 steps per ms) remains 4/4 properties
BEST_FIRST walk for 40000 steps (8 resets) in 78 ms. (506 steps per ms) remains 4/4 properties
BEST_FIRST walk for 40003 steps (8 resets) in 73 ms. (540 steps per ms) remains 3/4 properties
FORMULA CloudReconfiguration-PT-312-ReachabilityCardinality-2024-00 TRUE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
[2026-05-23 04:11:46] [INFO ] Flow matrix only has 320 transitions (discarded 6 similar events)
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-11021795919067945852.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-16415724713228493551.kers'
[2026-05-23 04:11:46] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-11021795919067945852.kers, --Pflows, --basisKERS=/tmp/petrispot-output-16415724713228493551.kers]
Culled 0 columns in 0 ms.
// Phase 1: matrix 320 rows 154 cols 860 entries
Finished phase 1 with 150 SingleSign rule and 0 generalized
[2026-05-23 04:11:46] [INFO ] Computed 4 invariants in 1 ms
Computed 4 P flows in 1 ms.
Exported basis to /tmp/petrispot-output-16415724713228493551.kers
Total runtime 5 ms.
[2026-05-23 04:11:46] [INFO ] State equation strengthened by 27 read => feed constraints.
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/44 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 3 unsolved
Problem CloudReconfiguration-PT-312-ReachabilityCardinality-2024-15 is UNSAT
FORMULA CloudReconfiguration-PT-312-ReachabilityCardinality-2024-15 FALSE TECHNIQUES SMT_REFINEMENT
At refinement iteration 1 (OVERLAPS) 104/148 variables, 4/4 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/148 variables, 1/5 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/148 variables, 0/5 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 4 (OVERLAPS) 319/467 variables, 148/153 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/467 variables, 26/179 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/467 variables, 0/179 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 7 (OVERLAPS) 7/474 variables, 6/185 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/474 variables, 1/186 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/474 variables, 0/186 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 10 (OVERLAPS) 0/474 variables, 0/186 constraints. Problems are: Problem set: 1 solved, 2 unsolved
No progress, stopping.
After SMT solving in domain Real declared 474/474 variables, and 186 constraints, problems are : Problem set: 1 solved, 2 unsolved in 305 ms.
Refiners :[Positive P Invariants (semi-flows): 4/4 constraints, State Equation: 154/154 constraints, ReadFeed: 27/27 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 1 solved, 2 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/19 variables, 0/0 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 1 (OVERLAPS) 128/147 variables, 4/4 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/147 variables, 1/5 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/147 variables, 2/7 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/147 variables, 0/7 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 5 (OVERLAPS) 317/464 variables, 147/154 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/464 variables, 26/180 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/464 variables, 1/181 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/464 variables, 0/181 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 9 (OVERLAPS) 9/473 variables, 6/187 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/473 variables, 1/188 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/473 variables, 1/189 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/473 variables, 0/189 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 13 (OVERLAPS) 1/474 variables, 1/190 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/474 variables, 0/190 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 15 (OVERLAPS) 0/474 variables, 0/190 constraints. Problems are: Problem set: 1 solved, 2 unsolved
No progress, stopping.
After SMT solving in domain Int declared 474/474 variables, and 190 constraints, problems are : Problem set: 1 solved, 2 unsolved in 644 ms.
Refiners :[Positive P Invariants (semi-flows): 4/4 constraints, State Equation: 154/154 constraints, ReadFeed: 27/27 constraints, PredecessorRefiner: 2/3 constraints, Known Traps: 3/3 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 972ms problems are : Problem set: 1 solved, 2 unsolved
FORMULA CloudReconfiguration-PT-312-ReachabilityCardinality-2024-10 FALSE TECHNIQUES PARIKH_WALK
Finished Parikh walk after 36 steps, including 0 resets, run visited all 1 properties in 1 ms. (steps per millisecond=36 )
FORMULA CloudReconfiguration-PT-312-ReachabilityCardinality-2024-11 TRUE TECHNIQUES PARIKH_WALK
Parikh walk visited 2 properties in 15 ms.
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 14315 ms.

BK_STOP 1779509507422

--------------------
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
+ [[ ReachabilityCardinality = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution ReachabilityCardinality -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_1.0.0.202604301425.jar
+ VERSION=202604301425
+ echo 'Running Version 202604301425'
+ /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/its-tools -pnfolder /home/mcc/execution -examination ReachabilityCardinality -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-312"
export BK_EXAMINATION="ReachabilityCardinality"
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 2-5973"
echo " Executing tool itstools"
echo " Input is CloudReconfiguration-PT-312, examination is ReachabilityCardinality"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r066-tall-177946967600206"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/CloudReconfiguration-PT-312.tgz
mv CloudReconfiguration-PT-312 execution
cd execution
if [ "ReachabilityCardinality" = "ReachabilityDeadlock" ] || [ "ReachabilityCardinality" = "UpperBounds" ] || [ "ReachabilityCardinality" = "QuasiLiveness" ] || [ "ReachabilityCardinality" = "StableMarking" ] || [ "ReachabilityCardinality" = "Liveness" ] || [ "ReachabilityCardinality" = "OneSafe" ] || [ "ReachabilityCardinality" = "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 [ "ReachabilityCardinality" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "ReachabilityCardinality" != "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 "ReachabilityCardinality.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 '' ReachabilityCardinality.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "ReachabilityCardinality" = "ReachabilityDeadlock" ] || [ "ReachabilityCardinality" = "QuasiLiveness" ] || [ "ReachabilityCardinality" = "StableMarking" ] || [ "ReachabilityCardinality" = "Liveness" ] || [ "ReachabilityCardinality" = "OneSafe" ] ; then
echo "FORMULA_NAME ReachabilityCardinality"
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 ;