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-177946967500134.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)
................
=====================================================================
Generated by BenchKit 2-5973
Executing tool itstools
Input is CloudReconfiguration-PT-303, examination is ReachabilityCardinality
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r066-tall-177946967500134
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 1.1M
-rw-r--r-- 1 mcc users 6.8K Mar 6 08:55 CTLCardinality.txt
-rw-r--r-- 1 mcc users 67K Mar 6 08:55 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.4K Mar 6 08:55 CTLFireability.txt
-rw-r--r-- 1 mcc users 45K 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 4.0K Mar 15 08:22 LTLCardinality.txt
-rw-r--r-- 1 mcc users 27K Mar 15 08:22 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.4K Mar 15 08:22 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K Mar 15 08:22 LTLFireability.xml
-rw-r--r-- 1 mcc users 9.6K Mar 6 08:55 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 94K Mar 6 08:55 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 8.9K Mar 6 08:55 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 74K Mar 6 08:55 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.8K Mar 15 08:22 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.8K Mar 15 08:22 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-303-ReachabilityCardinality-2024-00
FORMULA_NAME CloudReconfiguration-PT-303-ReachabilityCardinality-2024-01
FORMULA_NAME CloudReconfiguration-PT-303-ReachabilityCardinality-2024-02
FORMULA_NAME CloudReconfiguration-PT-303-ReachabilityCardinality-2024-03
FORMULA_NAME CloudReconfiguration-PT-303-ReachabilityCardinality-2024-04
FORMULA_NAME CloudReconfiguration-PT-303-ReachabilityCardinality-2024-05
FORMULA_NAME CloudReconfiguration-PT-303-ReachabilityCardinality-2024-06
FORMULA_NAME CloudReconfiguration-PT-303-ReachabilityCardinality-2024-07
FORMULA_NAME CloudReconfiguration-PT-303-ReachabilityCardinality-2024-08
FORMULA_NAME CloudReconfiguration-PT-303-ReachabilityCardinality-2024-09
FORMULA_NAME CloudReconfiguration-PT-303-ReachabilityCardinality-2024-10
FORMULA_NAME CloudReconfiguration-PT-303-ReachabilityCardinality-2024-11
FORMULA_NAME CloudReconfiguration-PT-303-ReachabilityCardinality-2024-12
FORMULA_NAME CloudReconfiguration-PT-303-ReachabilityCardinality-2024-13
FORMULA_NAME CloudReconfiguration-PT-303-ReachabilityCardinality-2024-14
FORMULA_NAME CloudReconfiguration-PT-303-ReachabilityCardinality-2024-15

=== Now, execution of the tool begins

BK_START 1779500355879

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-303
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
ReachabilityCardinality PT
Running Version 202604301425
[2026-05-23 01:39:17] [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 01:39:17] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-23 01:39:17] [INFO ] Load time of PNML (sax parser for PT used): 144 ms
[2026-05-23 01:39:17] [INFO ] Transformed 2584 places.
[2026-05-23 01:39:17] [INFO ] Transformed 3094 transitions.
[2026-05-23 01:39:17] [INFO ] Found NUPN structural information;
[2026-05-23 01:39:17] [INFO ] Parsed PT model containing 2584 places and 3094 transitions and 6459 arcs in 241 ms.
Parsed 16 properties from file /home/mcc/execution/ReachabilityCardinality.xml in 16 ms.
Working with output stream class java.io.PrintStream
FORMULA CloudReconfiguration-PT-303-ReachabilityCardinality-2024-00 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA CloudReconfiguration-PT-303-ReachabilityCardinality-2024-01 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA CloudReconfiguration-PT-303-ReachabilityCardinality-2024-06 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA CloudReconfiguration-PT-303-ReachabilityCardinality-2024-13 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
RANDOM walk for 40000 steps (446 resets) in 1615 ms. (24 steps per ms) remains 9/12 properties
FORMULA CloudReconfiguration-PT-303-ReachabilityCardinality-2024-14 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA CloudReconfiguration-PT-303-ReachabilityCardinality-2024-05 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA CloudReconfiguration-PT-303-ReachabilityCardinality-2024-04 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
BEST_FIRST walk for 40001 steps (146 resets) in 626 ms. (63 steps per ms) remains 9/9 properties
BEST_FIRST walk for 40003 steps (141 resets) in 397 ms. (100 steps per ms) remains 9/9 properties
[2026-05-23 01:39:18] [INFO ] Flatten gal took : 315 ms
BEST_FIRST walk for 40002 steps (154 resets) in 202 ms. (197 steps per ms) remains 9/9 properties
BEST_FIRST walk for 40003 steps (145 resets) in 158 ms. (251 steps per ms) remains 9/9 properties
[2026-05-23 01:39:18] [INFO ] Flatten gal took : 130 ms
BEST_FIRST walk for 40002 steps (150 resets) in 171 ms. (232 steps per ms) remains 9/9 properties
BEST_FIRST walk for 40003 steps (149 resets) in 248 ms. (160 steps per ms) remains 9/9 properties
[2026-05-23 01:39:18] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality11553823824007671188.gal : 99 ms
[2026-05-23 01:39:18] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality8062713650315754896.prop : 5 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/ReachabilityCardinality11553823824007671188.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality8062713650315754896.prop' '--nowitness' '--gen-order' 'FOLLOW'
BEST_FIRST walk for 40002 steps (163 resets) in 213 ms. (186 steps per ms) remains 9/9 properties

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 ...329
BEST_FIRST walk for 40002 steps (146 resets) in 183 ms. (217 steps per ms) remains 9/9 properties
BEST_FIRST walk for 40003 steps (146 resets) in 151 ms. (263 steps per ms) remains 9/9 properties
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-7250540439101133689.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-8709343084953612604.kers'
[2026-05-23 01:39:18] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-7250540439101133689.kers, --Pflows, --basisKERS=/tmp/petrispot-output-8709343084953612604.kers]
Culled 0 columns in 1 ms.
// Phase 1: matrix 3094 rows 2584 cols 6459 entries
Finished phase 1 with 2579 SingleSign rule and 1 generalized
[2026-05-23 01:39:18] [INFO ] Computed 4 invariants in 16 ms
Computed 4 P flows in 17 ms.
Exported basis to /tmp/petrispot-output-8709343084953612604.kers
Total runtime 19 ms.
Excessive predecessor constraint size, skipping predecessor.
Loading property file /tmp/ReachabilityCardinality8062713650315754896.prop.
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, 9 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/130 variables, 0/130 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 2 (OVERLAPS) 2443/2573 variables, 4/134 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/2573 variables, 2443/2577 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/2573 variables, 0/2577 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 5 (OVERLAPS) 3084/5657 variables, 2573/5150 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/5657 variables, 0/5150 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 7 (OVERLAPS) 2/5659 variables, 1/5151 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/5659 variables, 1/5152 constraints. Problems are: Problem set: 0 solved, 9 unsolved
SDD proceeding with computation,9 properties remain. new max is 4
SDD size :1 after 2
SDD proceeding with computation,9 properties remain. new max is 8
SDD size :2 after 3
SDD proceeding with computation,9 properties remain. new max is 16
SDD size :3 after 4
SDD proceeding with computation,9 properties remain. new max is 32
SDD size :4 after 5
SDD proceeding with computation,9 properties remain. new max is 64
SDD size :5 after 6
SDD proceeding with computation,9 properties remain. new max is 128
SDD size :6 after 7
SDD proceeding with computation,9 properties remain. new max is 256
SDD size :7 after 9
SDD proceeding with computation,9 properties remain. new max is 512
SDD size :9 after 11
SDD proceeding with computation,9 properties remain. new max is 1024
SDD size :11 after 19
At refinement iteration 9 (INCLUDED_ONLY) 0/5659 variables, 0/5152 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 10 (OVERLAPS) 2/5661 variables, 1/5153 constraints. Problems are: Problem set: 0 solved, 9 unsolved
SDD proceeding with computation,9 properties remain. new max is 2048
SDD size :19 after 309
At refinement iteration 11 (INCLUDED_ONLY) 0/5661 variables, 1/5154 constraints. Problems are: Problem set: 0 solved, 9 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 5661/5678 variables, and 5154 constraints, problems are : Problem set: 0 solved, 9 unsolved in 5045 ms.
Refiners :[Domain max(s): 2575/2584 constraints, Generalized P Invariants (flows): 4/4 constraints, State Equation: 2575/2584 constraints, PredecessorRefiner: 9/7 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 9 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/130 variables, 130/130 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/130 variables, 0/130 constraints. Problems are: Problem set: 0 solved, 9 unsolved
SDD proceeding with computation,9 properties remain. new max is 4096
SDD size :309 after 3001
At refinement iteration 2 (OVERLAPS) 2443/2573 variables, 4/134 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/2573 variables, 2443/2577 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/2573 variables, 0/2577 constraints. Problems are: Problem set: 0 solved, 9 unsolved
SDD proceeding with computation,9 properties remain. new max is 8192
SDD size :3001 after 5783
Invariant property CloudReconfiguration-PT-303-ReachabilityCardinality-2024-09 does not hold.
FORMULA CloudReconfiguration-PT-303-ReachabilityCardinality-2024-09 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING
Invariant property CloudReconfiguration-PT-303-ReachabilityCardinality-2024-02 does not hold.
FORMULA CloudReconfiguration-PT-303-ReachabilityCardinality-2024-02 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING
SDD proceeding with computation,7 properties remain. new max is 8192
SDD size :5783 after 412850
Problem CloudReconfiguration-PT-303-ReachabilityCardinality-2024-12 is UNSAT
FORMULA CloudReconfiguration-PT-303-ReachabilityCardinality-2024-12 TRUE TECHNIQUES SMT_REFINEMENT
At refinement iteration 5 (OVERLAPS) 3084/5657 variables, 2573/5150 constraints. Problems are: Problem set: 3 solved, 6 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/5657 variables, 5/5155 constraints. Problems are: Problem set: 3 solved, 6 unsolved
SDD proceeding with computation,7 properties remain. new max is 16384
SDD size :412850 after 1.08991e+06
At refinement iteration 7 (INCLUDED_ONLY) 0/5657 variables, 0/5155 constraints. Problems are: Problem set: 3 solved, 6 unsolved
SMT process timed out in 10246ms, After SMT, problems are : Problem set: 3 solved, 6 unsolved
Skipping Parikh replay, no witness traces provided.
Support contains 96 out of 2584 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 2584/2584 places, 3094/3094 transitions.
Graph (trivial) has 2738 edges and 2584 vertex of which 595 / 2584 are part of one of the 55 SCC in 13 ms
Free SCC test removed 540 places
Drop transitions (Empty/Sink Transition effects.) removed 669 transitions
Reduce isomorphic transitions removed 669 transitions.
Graph (complete) has 2703 edges and 2044 vertex of which 2030 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 9 transitions
Reduce isomorphic transitions removed 9 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 1202 transitions
Trivial Post-agglo rules discarded 1202 transitions
Performed 1202 trivial Post agglomeration. Transition count delta: 1202
Iterating post reduction 0 with 1211 rules applied. Total rules applied 1213 place count 2030 transition count 1205
Reduce places removed 1202 places and 0 transitions.
Ensure Unique test removed 65 transitions
Reduce isomorphic transitions removed 65 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 1321 rules applied. Total rules applied 2534 place count 828 transition count 1086
Reduce places removed 54 places and 0 transitions.
Ensure Unique test removed 5 transitions
Reduce isomorphic transitions removed 5 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 61 rules applied. Total rules applied 2595 place count 774 transition count 1079
Reduce places removed 2 places and 0 transitions.
Performed 70 Post agglomeration using F-continuation condition.Transition count delta: 70
Iterating post reduction 3 with 72 rules applied. Total rules applied 2667 place count 772 transition count 1009
Reduce places removed 70 places and 0 transitions.
Ensure Unique test removed 5 transitions
Reduce isomorphic transitions removed 5 transitions.
Performed 2 Post agglomeration using F-continuation condition.Transition count delta: 2
Iterating post reduction 4 with 77 rules applied. Total rules applied 2744 place count 702 transition count 1002
Reduce places removed 2 places and 0 transitions.
Iterating post reduction 5 with 2 rules applied. Total rules applied 2746 place count 700 transition count 1002
Performed 33 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 6 with 33 Pre rules applied. Total rules applied 2746 place count 700 transition count 969
Deduced a syphon composed of 33 places in 1 ms
Reduce places removed 33 places and 0 transitions.
Iterating global reduction 6 with 66 rules applied. Total rules applied 2812 place count 667 transition count 969
Discarding 82 places :
Symmetric choice reduction at 6 with 82 rule applications. Total rules 2894 place count 585 transition count 887
Iterating global reduction 6 with 82 rules applied. Total rules applied 2976 place count 585 transition count 887
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 6 with 5 rules applied. Total rules applied 2981 place count 585 transition count 882
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 1 transitions
Trivial Post-agglo rules discarded 1 transitions
Performed 1 trivial Post agglomeration. Transition count delta: 1
Iterating post reduction 7 with 3 rules applied. Total rules applied 2984 place count 584 transition count 880
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 1 transitions
Trivial Post-agglo rules discarded 1 transitions
Performed 1 trivial Post agglomeration. Transition count delta: 1
Iterating post reduction 8 with 3 rules applied. Total rules applied 2987 place count 583 transition count 878
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 1 transitions
Trivial Post-agglo rules discarded 1 transitions
Performed 1 trivial Post agglomeration. Transition count delta: 1
Iterating post reduction 9 with 3 rules applied. Total rules applied 2990 place count 582 transition count 876
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 10 with 1 rules applied. Total rules applied 2991 place count 581 transition count 876
Performed 5 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 11 with 5 Pre rules applied. Total rules applied 2991 place count 581 transition count 871
Deduced a syphon composed of 5 places in 2 ms
Reduce places removed 5 places and 0 transitions.
Iterating global reduction 11 with 10 rules applied. Total rules applied 3001 place count 576 transition count 871
Discarding 49 places :
Symmetric choice reduction at 11 with 49 rule applications. Total rules 3050 place count 527 transition count 822
Iterating global reduction 11 with 49 rules applied. Total rules applied 3099 place count 527 transition count 822
Ensure Unique test removed 14 transitions
Reduce isomorphic transitions removed 14 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 13 transitions
Trivial Post-agglo rules discarded 13 transitions
Performed 13 trivial Post agglomeration. Transition count delta: 13
Iterating post reduction 11 with 27 rules applied. Total rules applied 3126 place count 527 transition count 795
Reduce places removed 13 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 12 with 15 rules applied. Total rules applied 3141 place count 514 transition count 793
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 13 with 1 rules applied. Total rules applied 3142 place count 513 transition count 793
Discarding 11 places :
Symmetric choice reduction at 14 with 11 rule applications. Total rules 3153 place count 502 transition count 774
Iterating global reduction 14 with 11 rules applied. Total rules applied 3164 place count 502 transition count 774
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 14 with 1 rules applied. Total rules applied 3165 place count 502 transition count 773
Discarding 5 places :
Symmetric choice reduction at 15 with 5 rule applications. Total rules 3170 place count 497 transition count 763
Iterating global reduction 15 with 5 rules applied. Total rules applied 3175 place count 497 transition count 763
Discarding 2 places :
Symmetric choice reduction at 15 with 2 rule applications. Total rules 3177 place count 495 transition count 759
Iterating global reduction 15 with 2 rules applied. Total rules applied 3179 place count 495 transition count 759
Performed 183 Post agglomeration using F-continuation condition with reduction of 64 identical transitions.
Deduced a syphon composed of 183 places in 2 ms
Reduce places removed 183 places and 0 transitions.
Iterating global reduction 15 with 366 rules applied. Total rules applied 3545 place count 312 transition count 512
Ensure Unique test removed 9 transitions
Reduce isomorphic transitions removed 9 transitions.
Iterating post reduction 15 with 9 rules applied. Total rules applied 3554 place count 312 transition count 503
Performed 2 Post agglomeration using F-continuation condition.Transition count delta: 2
Deduced a syphon composed of 2 places in 1 ms
Reduce places removed 2 places and 0 transitions.
Iterating global reduction 16 with 4 rules applied. Total rules applied 3558 place count 310 transition count 501
Ensure Unique test removed 4 transitions
Reduce isomorphic transitions removed 4 transitions.
Iterating post reduction 16 with 4 rules applied. Total rules applied 3562 place count 310 transition count 497
Performed 42 Post agglomeration using F-continuation condition with reduction of 6 identical transitions.
Deduced a syphon composed of 42 places in 2 ms
Reduce places removed 42 places and 0 transitions.
Iterating global reduction 17 with 84 rules applied. Total rules applied 3646 place count 268 transition count 514
Ensure Unique test removed 28 transitions
Reduce isomorphic transitions removed 28 transitions.
Iterating post reduction 17 with 28 rules applied. Total rules applied 3674 place count 268 transition count 486
Discarding 13 places :
Symmetric choice reduction at 18 with 13 rule applications. Total rules 3687 place count 255 transition count 460
Iterating global reduction 18 with 13 rules applied. Total rules applied 3700 place count 255 transition count 460
Ensure Unique test removed 3 transitions
Reduce isomorphic transitions removed 3 transitions.
Iterating post reduction 18 with 3 rules applied. Total rules applied 3703 place count 255 transition count 457
Drop transitions (Redundant composition of simpler transitions.) removed 28 transitions
Redundant transition composition rules discarded 28 transitions
Iterating global reduction 19 with 28 rules applied. Total rules applied 3731 place count 255 transition count 429
Discarding 3 places :
Symmetric choice reduction at 19 with 3 rule applications. Total rules 3734 place count 252 transition count 426
Iterating global reduction 19 with 3 rules applied. Total rules applied 3737 place count 252 transition count 426
Free-agglomeration rule applied 29 times.
Iterating global reduction 19 with 29 rules applied. Total rules applied 3766 place count 252 transition count 397
Reduce places removed 29 places and 0 transitions.
Iterating post reduction 19 with 29 rules applied. Total rules applied 3795 place count 223 transition count 397
Drop transitions (Redundant composition of simpler transitions.) removed 4 transitions
Redundant transition composition rules discarded 4 transitions
Iterating global reduction 20 with 4 rules applied. Total rules applied 3799 place count 223 transition count 393
Partial Free-agglomeration rule applied 15 times.
Drop transitions (Partial Free agglomeration) removed 15 transitions
Iterating global reduction 20 with 15 rules applied. Total rules applied 3814 place count 223 transition count 393
Drop transitions (Redundant composition of simpler transitions.) removed 2 transitions
Redundant transition composition rules discarded 2 transitions
Iterating global reduction 20 with 2 rules applied. Total rules applied 3816 place count 223 transition count 391
Partial Post-agglomeration rule applied 1 times.
Drop transitions (Partial Post agglomeration) removed 1 transitions
Iterating global reduction 20 with 1 rules applied. Total rules applied 3817 place count 223 transition count 391
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 20 with 1 rules applied. Total rules applied 3818 place count 222 transition count 390
Applied a total of 3818 rules in 430 ms. Remains 222 /2584 variables (removed 2362) and now considering 390/3094 (removed 2704) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 440 ms. Remains : 222/2584 places, 390/3094 transitions.
RANDOM walk for 40000 steps (9 resets) in 475 ms. (84 steps per ms) remains 3/6 properties
FORMULA CloudReconfiguration-PT-303-ReachabilityCardinality-2024-10 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA CloudReconfiguration-PT-303-ReachabilityCardinality-2024-08 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA CloudReconfiguration-PT-303-ReachabilityCardinality-2024-07 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
BEST_FIRST walk for 40003 steps (9 resets) in 126 ms. (314 steps per ms) remains 1/3 properties
FORMULA CloudReconfiguration-PT-303-ReachabilityCardinality-2024-15 FALSE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA CloudReconfiguration-PT-303-ReachabilityCardinality-2024-03 TRUE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 40002 steps (8 resets) in 112 ms. (354 steps per ms) remains 1/1 properties
[2026-05-23 01:39:29] [INFO ] Flow matrix only has 386 transitions (discarded 4 similar events)
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-2613703819256365280.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-9690861371771970779.kers'
[2026-05-23 01:39:29] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-2613703819256365280.kers, --Pflows, --basisKERS=/tmp/petrispot-output-9690861371771970779.kers]
Culled 0 columns in 0 ms.
// Phase 1: matrix 386 rows 222 cols 978 entries
Finished phase 1 with 218 SingleSign rule and 0 generalized
[2026-05-23 01:39:29] [INFO ] Computed 4 invariants in 1 ms
Computed 4 P flows in 1 ms.
Exported basis to /tmp/petrispot-output-9690861371771970779.kers
Total runtime 2 ms.
[2026-05-23 01:39:29] [INFO ] State equation strengthened by 5 read => feed constraints.
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/37 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 181/218 variables, 4/4 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/218 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 385/603 variables, 218/222 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/603 variables, 4/226 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/603 variables, 0/226 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 5/608 variables, 4/230 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/608 variables, 1/231 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/608 variables, 0/231 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 0/608 variables, 0/231 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 608/608 variables, and 231 constraints, problems are : Problem set: 0 solved, 1 unsolved in 196 ms.
Refiners :[Positive P Invariants (semi-flows): 4/4 constraints, State Equation: 222/222 constraints, ReadFeed: 5/5 constraints, PredecessorRefiner: 1/0 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/37 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Problem CloudReconfiguration-PT-303-ReachabilityCardinality-2024-11 is UNSAT
FORMULA CloudReconfiguration-PT-303-ReachabilityCardinality-2024-11 TRUE TECHNIQUES SMT_REFINEMENT
After SMT solving in domain Int declared 218/608 variables, and 4 constraints, problems are : Problem set: 1 solved, 0 unsolved in 50 ms.
Refiners :[Positive P Invariants (semi-flows): 4/4 constraints, State Equation: 0/222 constraints, ReadFeed: 0/5 constraints, PredecessorRefiner: 1/0 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 270ms problems are : Problem set: 1 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 12838 ms.

BK_STOP 1779500369923

--------------------
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-303"
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-303, 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-177946967500134"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/CloudReconfiguration-PT-303.tgz
mv CloudReconfiguration-PT-303 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 ;