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-177946967500143.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-304, examination is ReachabilityFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r066-tall-177946967500143
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 1.1M
-rw-r--r-- 1 mcc users 6.8K Mar 6 08:53 CTLCardinality.txt
-rw-r--r-- 1 mcc users 69K Mar 6 08:53 CTLCardinality.xml
-rw-r--r-- 1 mcc users 6.3K Mar 6 08:53 CTLFireability.txt
-rw-r--r-- 1 mcc users 57K Mar 6 08:53 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 3.8K Mar 15 08:22 LTLCardinality.txt
-rw-r--r-- 1 mcc users 25K 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 13K Mar 6 08:53 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 135K Mar 6 08:53 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 7.5K Mar 6 08:53 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 58K Mar 6 08:53 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-304-ReachabilityFireability-2024-00
FORMULA_NAME CloudReconfiguration-PT-304-ReachabilityFireability-2024-01
FORMULA_NAME CloudReconfiguration-PT-304-ReachabilityFireability-2024-02
FORMULA_NAME CloudReconfiguration-PT-304-ReachabilityFireability-2024-03
FORMULA_NAME CloudReconfiguration-PT-304-ReachabilityFireability-2024-04
FORMULA_NAME CloudReconfiguration-PT-304-ReachabilityFireability-2024-05
FORMULA_NAME CloudReconfiguration-PT-304-ReachabilityFireability-2024-06
FORMULA_NAME CloudReconfiguration-PT-304-ReachabilityFireability-2024-07
FORMULA_NAME CloudReconfiguration-PT-304-ReachabilityFireability-2024-08
FORMULA_NAME CloudReconfiguration-PT-304-ReachabilityFireability-2024-09
FORMULA_NAME CloudReconfiguration-PT-304-ReachabilityFireability-2024-10
FORMULA_NAME CloudReconfiguration-PT-304-ReachabilityFireability-2024-11
FORMULA_NAME CloudReconfiguration-PT-304-ReachabilityFireability-2024-12
FORMULA_NAME CloudReconfiguration-PT-304-ReachabilityFireability-2024-13
FORMULA_NAME CloudReconfiguration-PT-304-ReachabilityFireability-2024-14
FORMULA_NAME CloudReconfiguration-PT-304-ReachabilityFireability-2024-15

=== Now, execution of the tool begins

BK_START 1779500962276

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 202604301425
[2026-05-23 01:49:23] [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]
[2026-05-23 01:49:23] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-23 01:49:23] [INFO ] Load time of PNML (sax parser for PT used): 153 ms
[2026-05-23 01:49:23] [INFO ] Transformed 2584 places.
[2026-05-23 01:49:23] [INFO ] Transformed 3094 transitions.
[2026-05-23 01:49:23] [INFO ] Found NUPN structural information;
[2026-05-23 01:49:23] [INFO ] Parsed PT model containing 2584 places and 3094 transitions and 6459 arcs in 260 ms.
Parsed 16 properties from file /home/mcc/execution/ReachabilityFireability.xml in 14 ms.
Working with output stream class java.io.PrintStream
RANDOM walk for 40000 steps (309 resets) in 2300 ms. (17 steps per ms) remains 11/16 properties
FORMULA CloudReconfiguration-PT-304-ReachabilityFireability-2024-13 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA CloudReconfiguration-PT-304-ReachabilityFireability-2024-05 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA CloudReconfiguration-PT-304-ReachabilityFireability-2024-04 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA CloudReconfiguration-PT-304-ReachabilityFireability-2024-03 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA CloudReconfiguration-PT-304-ReachabilityFireability-2024-02 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
BEST_FIRST walk for 40002 steps (84 resets) in 373 ms. (106 steps per ms) remains 11/11 properties
[2026-05-23 01:49:24] [INFO ] Flatten gal took : 455 ms
BEST_FIRST walk for 40004 steps (39 resets) in 358 ms. (111 steps per ms) remains 11/11 properties
BEST_FIRST walk for 40002 steps (85 resets) in 185 ms. (215 steps per ms) remains 11/11 properties
[2026-05-23 01:49:24] [INFO ] Flatten gal took : 152 ms
BEST_FIRST walk for 40004 steps (80 resets) in 194 ms. (205 steps per ms) remains 11/11 properties
BEST_FIRST walk for 40003 steps (81 resets) in 239 ms. (166 steps per ms) remains 11/11 properties
[2026-05-23 01:49:25] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality3459560053864611504.gal : 107 ms
BEST_FIRST walk for 40004 steps (83 resets) in 178 ms. (223 steps per ms) remains 11/11 properties
[2026-05-23 01:49:25] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality17210628354231421196.prop : 2 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202604301425/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality3459560053864611504.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality17210628354231421196.prop' '--nowitness' '--gen-order' 'FOLLOW'
BEST_FIRST walk for 40002 steps (82 resets) in 167 ms. (238 steps per ms) remains 11/11 properties

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202604301425/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...329
BEST_FIRST walk for 40003 steps (81 resets) in 157 ms. (253 steps per ms) remains 9/11 properties
FORMULA CloudReconfiguration-PT-304-ReachabilityFireability-2024-12 TRUE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA CloudReconfiguration-PT-304-ReachabilityFireability-2024-06 FALSE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 40004 steps (84 resets) in 113 ms. (350 steps per ms) remains 8/9 properties
FORMULA CloudReconfiguration-PT-304-ReachabilityFireability-2024-14 TRUE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 40003 steps (84 resets) in 178 ms. (223 steps per ms) remains 8/8 properties
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-75959276486063046.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-12989824321042513330.kers'
[2026-05-23 01:49:25] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-75959276486063046.kers, --Pflows, --basisKERS=/tmp/petrispot-output-12989824321042513330.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 01:49:25] [INFO ] Computed 4 invariants in 16 ms
Computed 4 P flows in 16 ms.
Exported basis to /tmp/petrispot-output-12989824321042513330.kers
Total runtime 18 ms.
Loading property file /tmp/ReachabilityCardinality17210628354231421196.prop.
Excessive predecessor constraint size, skipping predecessor.
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/87 variables, 87/87 constraints. Problems are: Problem set: 0 solved, 8 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/87 variables, 0/87 constraints. Problems are: Problem set: 0 solved, 8 unsolved
At refinement iteration 2 (OVERLAPS) 2486/2573 variables, 4/91 constraints. Problems are: Problem set: 0 solved, 8 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/2573 variables, 2486/2577 constraints. Problems are: Problem set: 0 solved, 8 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/2573 variables, 0/2577 constraints. Problems are: Problem set: 0 solved, 8 unsolved
At refinement iteration 5 (OVERLAPS) 3084/5657 variables, 2573/5150 constraints. Problems are: Problem set: 0 solved, 8 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/5657 variables, 0/5150 constraints. Problems are: Problem set: 0 solved, 8 unsolved
At refinement iteration 7 (OVERLAPS) 2/5659 variables, 1/5151 constraints. Problems are: Problem set: 0 solved, 8 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/5659 variables, 1/5152 constraints. Problems are: Problem set: 0 solved, 8 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/5659 variables, 0/5152 constraints. Problems are: Problem set: 0 solved, 8 unsolved
At refinement iteration 10 (OVERLAPS) 2/5661 variables, 1/5153 constraints. Problems are: Problem set: 0 solved, 8 unsolved
SDD proceeding with computation,11 properties remain. new max is 4
SDD size :1 after 4
At refinement iteration 11 (INCLUDED_ONLY) 0/5661 variables, 1/5154 constraints. Problems are: Problem set: 0 solved, 8 unsolved
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
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
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
At refinement iteration 12 (INCLUDED_ONLY) 0/5661 variables, 0/5154 constraints. Problems are: Problem set: 0 solved, 8 unsolved
At refinement iteration 13 (OVERLAPS) 2/5663 variables, 1/5155 constraints. Problems are: Problem set: 0 solved, 8 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/5663 variables, 1/5156 constraints. Problems are: Problem set: 0 solved, 8 unsolved
Error getting values : (error "Timeout of Z3 solver reached")
SDD proceeding with computation,11 properties remain. new max is 8192
SDD size :2460 after 6416
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 5663/5678 variables, and 5156 constraints, problems are : Problem set: 0 solved, 8 unsolved in 5049 ms.
Refiners :[Domain max(s): 2576/2584 constraints, Generalized P Invariants (flows): 4/4 constraints, State Equation: 2576/2584 constraints, PredecessorRefiner: 8/7 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 8 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/87 variables, 87/87 constraints. Problems are: Problem set: 0 solved, 8 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/87 variables, 0/87 constraints. Problems are: Problem set: 0 solved, 8 unsolved
At refinement iteration 2 (OVERLAPS) 2486/2573 variables, 4/91 constraints. Problems are: Problem set: 0 solved, 8 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/2573 variables, 2486/2577 constraints. Problems are: Problem set: 0 solved, 8 unsolved
Reachability property CloudReconfiguration-PT-304-ReachabilityFireability-2024-12 is true.
At refinement iteration 4 (INCLUDED_ONLY) 0/2573 variables, 0/2577 constraints. Problems are: Problem set: 0 solved, 8 unsolved
Reachability property CloudReconfiguration-PT-304-ReachabilityFireability-2024-11 is true.
FORMULA CloudReconfiguration-PT-304-ReachabilityFireability-2024-11 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING
At refinement iteration 5 (OVERLAPS) 3084/5657 variables, 2573/5150 constraints. Problems are: Problem set: 1 solved, 7 unsolved
Reachability property CloudReconfiguration-PT-304-ReachabilityFireability-2024-09 is true.
FORMULA CloudReconfiguration-PT-304-ReachabilityFireability-2024-09 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING
SDD proceeding with computation,8 properties remain. new max is 8192
SDD size :6416 after 48708
SDD proceeding with computation,8 properties remain. new max is 16384
SDD size :48708 after 413787
At refinement iteration 6 (INCLUDED_ONLY) 0/5657 variables, 6/5156 constraints. Problems are: Problem set: 2 solved, 6 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/5657 variables, 0/5156 constraints. Problems are: Problem set: 2 solved, 6 unsolved
SDD proceeding with computation,8 properties remain. new max is 32768
SDD size :413787 after 3.64505e+06
At refinement iteration 8 (OVERLAPS) 2/5659 variables, 1/5157 constraints. Problems are: Problem set: 2 solved, 6 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/5659 variables, 1/5158 constraints. Problems are: Problem set: 2 solved, 6 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 5659/5678 variables, and 5158 constraints, problems are : Problem set: 2 solved, 6 unsolved in 5024 ms.
Refiners :[Domain max(s): 2574/2584 constraints, Generalized P Invariants (flows): 4/4 constraints, State Equation: 2574/2584 constraints, PredecessorRefiner: 7/7 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 10230ms problems are : Problem set: 2 solved, 6 unsolved
Skipping Parikh replay, no witness traces provided.
Support contains 59 out of 2584 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 2584/2584 places, 3094/3094 transitions.
Graph (trivial) has 2806 edges and 2584 vertex of which 727 / 2584 are part of one of the 56 SCC in 15 ms
Free SCC test removed 671 places
Drop transitions (Empty/Sink Transition effects.) removed 816 transitions
Reduce isomorphic transitions removed 816 transitions.
Graph (complete) has 2556 edges and 1913 vertex of which 1899 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 5 transitions
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 7 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 1168 transitions
Trivial Post-agglo rules discarded 1168 transitions
Performed 1168 trivial Post agglomeration. Transition count delta: 1168
Iterating post reduction 0 with 1175 rules applied. Total rules applied 1177 place count 1899 transition count 1094
Reduce places removed 1168 places and 0 transitions.
Ensure Unique test removed 71 transitions
Reduce isomorphic transitions removed 71 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 50 transitions
Trivial Post-agglo rules discarded 50 transitions
Performed 50 trivial Post agglomeration. Transition count delta: 50
Iterating post reduction 1 with 1289 rules applied. Total rules applied 2466 place count 731 transition count 973
Reduce places removed 50 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 56 rules applied. Total rules applied 2522 place count 681 transition count 967
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 3 with 4 rules applied. Total rules applied 2526 place count 679 transition count 965
Reduce places removed 1 places and 0 transitions.
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 2 transitions
Trivial Post-agglo rules discarded 2 transitions
Performed 2 trivial Post agglomeration. Transition count delta: 2
Iterating post reduction 4 with 4 rules applied. Total rules applied 2530 place count 678 transition count 962
Reduce places removed 2 places and 0 transitions.
Performed 58 Post agglomeration using F-continuation condition.Transition count delta: 58
Iterating post reduction 5 with 60 rules applied. Total rules applied 2590 place count 676 transition count 904
Reduce places removed 58 places and 0 transitions.
Ensure Unique test removed 4 transitions
Reduce isomorphic transitions removed 4 transitions.
Performed 2 Post agglomeration using F-continuation condition.Transition count delta: 2
Iterating post reduction 6 with 64 rules applied. Total rules applied 2654 place count 618 transition count 898
Reduce places removed 2 places and 0 transitions.
Iterating post reduction 7 with 2 rules applied. Total rules applied 2656 place count 616 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 2656 place count 616 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 2710 place count 589 transition count 871
Discarding 81 places :
Symmetric choice reduction at 8 with 81 rule applications. Total rules 2791 place count 508 transition count 790
Iterating global reduction 8 with 81 rules applied. Total rules applied 2872 place count 508 transition count 790
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 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 2875 place count 508 transition count 787
Reduce places removed 1 places and 0 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Iterating post reduction 9 with 2 rules applied. Total rules applied 2877 place count 507 transition count 786
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 10 with 1 rules applied. Total rules applied 2878 place count 506 transition count 786
Performed 3 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 11 with 3 Pre rules applied. Total rules applied 2878 place count 506 transition count 783
Deduced a syphon composed of 3 places in 1 ms
Reduce places removed 3 places and 0 transitions.
Iterating global reduction 11 with 6 rules applied. Total rules applied 2884 place count 503 transition count 783
Discarding 60 places :
Symmetric choice reduction at 11 with 60 rule applications. Total rules 2944 place count 443 transition count 723
Iterating global reduction 11 with 60 rules applied. Total rules applied 3004 place count 443 transition count 723
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 11 with 28 rules applied. Total rules applied 3032 place count 443 transition count 695
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 12 with 20 rules applied. Total rules applied 3052 place count 429 transition count 689
Reduce places removed 3 places and 0 transitions.
Iterating post reduction 13 with 3 rules applied. Total rules applied 3055 place count 426 transition count 689
Discarding 15 places :
Symmetric choice reduction at 14 with 15 rule applications. Total rules 3070 place count 411 transition count 666
Iterating global reduction 14 with 15 rules applied. Total rules applied 3085 place count 411 transition count 666
Ensure Unique test removed 5 transitions
Reduce isomorphic transitions removed 5 transitions.
Iterating post reduction 14 with 5 rules applied. Total rules applied 3090 place count 411 transition count 661
Discarding 6 places :
Symmetric choice reduction at 15 with 6 rule applications. Total rules 3096 place count 405 transition count 649
Iterating global reduction 15 with 6 rules applied. Total rules applied 3102 place count 405 transition count 649
Discarding 3 places :
Symmetric choice reduction at 15 with 3 rule applications. Total rules 3105 place count 402 transition count 643
Iterating global reduction 15 with 3 rules applied. Total rules applied 3108 place count 402 transition count 643
Performed 169 Post agglomeration using F-continuation condition with reduction of 65 identical transitions.
Deduced a syphon composed of 169 places in 1 ms
Reduce places removed 169 places and 0 transitions.
Iterating global reduction 15 with 338 rules applied. Total rules applied 3446 place count 233 transition count 409
Ensure Unique test removed 11 transitions
Reduce isomorphic transitions removed 11 transitions.
Iterating post reduction 15 with 11 rules applied. Total rules applied 3457 place count 233 transition count 398
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 16 with 4 rules applied. Total rules applied 3461 place count 231 transition count 396
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 16 with 2 rules applied. Total rules applied 3463 place count 231 transition count 394
Performed 40 Post agglomeration using F-continuation condition with reduction of 9 identical transitions.
Deduced a syphon composed of 40 places in 0 ms
Reduce places removed 40 places and 0 transitions.
Iterating global reduction 17 with 80 rules applied. Total rules applied 3543 place count 191 transition count 418
Ensure Unique test removed 34 transitions
Reduce isomorphic transitions removed 34 transitions.
Iterating post reduction 17 with 34 rules applied. Total rules applied 3577 place count 191 transition count 384
Discarding 17 places :
Symmetric choice reduction at 18 with 17 rule applications. Total rules 3594 place count 174 transition count 350
Iterating global reduction 18 with 17 rules applied. Total rules applied 3611 place count 174 transition count 350
Ensure Unique test removed 3 transitions
Reduce isomorphic transitions removed 3 transitions.
Iterating post reduction 18 with 3 rules applied. Total rules applied 3614 place count 174 transition count 347
Discarding 2 places :
Symmetric choice reduction at 19 with 2 rule applications. Total rules 3616 place count 172 transition count 343
Iterating global reduction 19 with 2 rules applied. Total rules applied 3618 place count 172 transition count 343
Drop transitions (Redundant composition of simpler transitions.) removed 23 transitions
Redundant transition composition rules discarded 23 transitions
Iterating global reduction 19 with 23 rules applied. Total rules applied 3641 place count 172 transition count 320
Discarding 2 places :
Symmetric choice reduction at 19 with 2 rule applications. Total rules 3643 place count 170 transition count 318
Iterating global reduction 19 with 2 rules applied. Total rules applied 3645 place count 170 transition count 318
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 19 with 2 rules applied. Total rules applied 3647 place count 169 transition count 317
Free-agglomeration rule applied 9 times.
Iterating global reduction 19 with 9 rules applied. Total rules applied 3656 place count 169 transition count 308
Reduce places removed 9 places and 0 transitions.
Iterating post reduction 19 with 9 rules applied. Total rules applied 3665 place count 160 transition count 308
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 3667 place count 160 transition count 306
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 3682 place count 160 transition count 306
Partial Post-agglomeration rule applied 3 times.
Drop transitions (Partial Post agglomeration) removed 3 transitions
Iterating global reduction 20 with 3 rules applied. Total rules applied 3685 place count 160 transition count 306
Applied a total of 3685 rules in 513 ms. Remains 160 /2584 variables (removed 2424) and now considering 306/3094 (removed 2788) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 520 ms. Remains : 160/2584 places, 306/3094 transitions.
RANDOM walk for 40000 steps (2637 resets) in 639 ms. (62 steps per ms) remains 3/6 properties
FORMULA CloudReconfiguration-PT-304-ReachabilityFireability-2024-15 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA CloudReconfiguration-PT-304-ReachabilityFireability-2024-10 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA CloudReconfiguration-PT-304-ReachabilityFireability-2024-07 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
BEST_FIRST walk for 40004 steps (137 resets) in 139 ms. (285 steps per ms) remains 3/3 properties
BEST_FIRST walk for 40003 steps (371 resets) in 132 ms. (300 steps per ms) remains 3/3 properties
BEST_FIRST walk for 40002 steps (679 resets) in 64 ms. (615 steps per ms) remains 3/3 properties
[2026-05-23 01:49:36] [INFO ] Flow matrix only has 297 transitions (discarded 9 similar events)
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-15798023364475192333.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-5764610492545299850.kers'
[2026-05-23 01:49:36] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-15798023364475192333.kers, --Pflows, --basisKERS=/tmp/petrispot-output-5764610492545299850.kers]
Culled 0 columns in 0 ms.
// Phase 1: matrix 297 rows 160 cols 804 entries
Finished phase 1 with 158 SingleSign rule and 0 generalized
[2026-05-23 01:49:36] [INFO ] Computed 2 invariants in 1 ms
Computed 2 P flows in 1 ms.
Exported basis to /tmp/petrispot-output-5764610492545299850.kers
Total runtime 1 ms.
[2026-05-23 01:49:36] [INFO ] State equation strengthened by 4 read => feed constraints.
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/48 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (OVERLAPS) 68/116 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/116 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 3 (OVERLAPS) 283/399 variables, 116/118 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/399 variables, 2/120 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/399 variables, 0/120 constraints. Problems are: Problem set: 0 solved, 3 unsolved
Problem CloudReconfiguration-PT-304-ReachabilityFireability-2024-08 is UNSAT
FORMULA CloudReconfiguration-PT-304-ReachabilityFireability-2024-08 FALSE TECHNIQUES SMT_REFINEMENT
At refinement iteration 6 (OVERLAPS) 56/455 variables, 42/162 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/455 variables, 2/164 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/455 variables, 0/164 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 9 (OVERLAPS) 2/457 variables, 2/166 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/457 variables, 0/166 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 11 (OVERLAPS) 0/457 variables, 0/166 constraints. Problems are: Problem set: 1 solved, 2 unsolved
No progress, stopping.
After SMT solving in domain Real declared 457/457 variables, and 166 constraints, problems are : Problem set: 1 solved, 2 unsolved in 212 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, State Equation: 160/160 constraints, ReadFeed: 4/4 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 1 solved, 2 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/37 variables, 0/0 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 1 (OVERLAPS) 72/109 variables, 2/2 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/109 variables, 0/2 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 3 (OVERLAPS) 252/361 variables, 109/111 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/361 variables, 2/113 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/361 variables, 0/113 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 6 (OVERLAPS) 72/433 variables, 37/150 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/433 variables, 2/152 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/433 variables, 2/154 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/433 variables, 0/154 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 10 (OVERLAPS) 21/454 variables, 11/165 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/454 variables, 0/165 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 12 (OVERLAPS) 3/457 variables, 3/168 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/457 variables, 0/168 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 14 (OVERLAPS) 0/457 variables, 0/168 constraints. Problems are: Problem set: 1 solved, 2 unsolved
No progress, stopping.
After SMT solving in domain Int declared 457/457 variables, and 168 constraints, problems are : Problem set: 1 solved, 2 unsolved in 680 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, State Equation: 160/160 constraints, ReadFeed: 4/4 constraints, PredecessorRefiner: 2/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 930ms problems are : Problem set: 1 solved, 2 unsolved
Finished Parikh walk after 6158 steps, including 260 resets, run visited all 2 properties in 18 ms. (steps per millisecond=342 )
FORMULA CloudReconfiguration-PT-304-ReachabilityFireability-2024-01 TRUE TECHNIQUES PARIKH_WALK
FORMULA CloudReconfiguration-PT-304-ReachabilityFireability-2024-00 FALSE TECHNIQUES PARIKH_WALK
Finished Parikh walk after 0 steps, including 0 resets, run visited all 0 properties in 1 ms. (steps per millisecond=0 )
Parikh walk visited 2 properties in 24 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 13942 ms.

BK_STOP 1779500977442

--------------------
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//
++ ls /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202604301425.jar
++ perl -pe 's/.*\.//g'
+ VERSION=202604301425
+ echo 'Running Version 202604301425'
+ /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 2-5973"
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 r066-tall-177946967500143"
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 ;