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-177946967500159.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-306, examination is ReachabilityFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r066-tall-177946967500159
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 1.1M
-rw-r--r-- 1 mcc users 8.3K Mar 6 08:53 CTLCardinality.txt
-rw-r--r-- 1 mcc users 90K Mar 6 08:53 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.1K Mar 6 08:53 CTLFireability.txt
-rw-r--r-- 1 mcc users 44K 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 08:23 LTLCardinality.txt
-rw-r--r-- 1 mcc users 25K Mar 15 08:23 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.5K Mar 15 08:23 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K Mar 15 08:23 LTLFireability.xml
-rw-r--r-- 1 mcc users 9.6K Mar 6 08:53 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 95K Mar 6 08:53 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 7.3K Mar 6 08:53 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 57K Mar 6 08:53 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.8K Mar 15 08:23 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.8K Mar 15 08:23 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-306-ReachabilityFireability-2024-00
FORMULA_NAME CloudReconfiguration-PT-306-ReachabilityFireability-2024-01
FORMULA_NAME CloudReconfiguration-PT-306-ReachabilityFireability-2024-02
FORMULA_NAME CloudReconfiguration-PT-306-ReachabilityFireability-2024-03
FORMULA_NAME CloudReconfiguration-PT-306-ReachabilityFireability-2024-04
FORMULA_NAME CloudReconfiguration-PT-306-ReachabilityFireability-2024-05
FORMULA_NAME CloudReconfiguration-PT-306-ReachabilityFireability-2024-06
FORMULA_NAME CloudReconfiguration-PT-306-ReachabilityFireability-2024-07
FORMULA_NAME CloudReconfiguration-PT-306-ReachabilityFireability-2024-08
FORMULA_NAME CloudReconfiguration-PT-306-ReachabilityFireability-2024-09
FORMULA_NAME CloudReconfiguration-PT-306-ReachabilityFireability-2024-10
FORMULA_NAME CloudReconfiguration-PT-306-ReachabilityFireability-2024-11
FORMULA_NAME CloudReconfiguration-PT-306-ReachabilityFireability-2024-12
FORMULA_NAME CloudReconfiguration-PT-306-ReachabilityFireability-2024-13
FORMULA_NAME CloudReconfiguration-PT-306-ReachabilityFireability-2024-14
FORMULA_NAME CloudReconfiguration-PT-306-ReachabilityFireability-2024-15

=== Now, execution of the tool begins

BK_START 1779502754190

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-306
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
ReachabilityFireability PT
Running Version 202604301425
[2026-05-23 02:19:15] [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 02:19:15] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-23 02:19:15] [INFO ] Load time of PNML (sax parser for PT used): 155 ms
[2026-05-23 02:19:15] [INFO ] Transformed 2584 places.
[2026-05-23 02:19:15] [INFO ] Transformed 3094 transitions.
[2026-05-23 02:19:15] [INFO ] Found NUPN structural information;
[2026-05-23 02:19:15] [INFO ] Parsed PT model containing 2584 places and 3094 transitions and 6459 arcs in 259 ms.
Parsed 16 properties from file /home/mcc/execution/ReachabilityFireability.xml in 13 ms.
Working with output stream class java.io.PrintStream
RANDOM walk for 40000 steps (439 resets) in 2611 ms. (15 steps per ms) remains 14/16 properties
FORMULA CloudReconfiguration-PT-306-ReachabilityFireability-2024-12 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA CloudReconfiguration-PT-306-ReachabilityFireability-2024-11 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
BEST_FIRST walk for 40003 steps (24 resets) in 897 ms. (44 steps per ms) remains 14/14 properties
[2026-05-23 02:19:16] [INFO ] Flatten gal took : 501 ms
BEST_FIRST walk for 40004 steps (67 resets) in 327 ms. (121 steps per ms) remains 13/14 properties
FORMULA CloudReconfiguration-PT-306-ReachabilityFireability-2024-02 FALSE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 40003 steps (71 resets) in 359 ms. (111 steps per ms) remains 12/13 properties
FORMULA CloudReconfiguration-PT-306-ReachabilityFireability-2024-14 FALSE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
[2026-05-23 02:19:17] [INFO ] Flatten gal took : 190 ms
BEST_FIRST walk for 40002 steps (153 resets) in 185 ms. (215 steps per ms) remains 12/12 properties
BEST_FIRST walk for 40003 steps (156 resets) in 188 ms. (211 steps per ms) remains 12/12 properties
[2026-05-23 02:19:17] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality12969046440072836827.gal : 111 ms
BEST_FIRST walk for 40003 steps (146 resets) in 253 ms. (157 steps per ms) remains 12/12 properties
[2026-05-23 02:19:17] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality8882359451172135318.prop : 10 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/ReachabilityCardinality12969046440072836827.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality8882359451172135318.prop' '--nowitness' '--gen-order' 'FOLLOW'
BEST_FIRST walk for 40001 steps (147 resets) in 167 ms. (238 steps per ms) remains 12/12 properties
BEST_FIRST walk for 40003 steps (141 resets) in 253 ms. (157 steps per ms) remains 11/12 properties
FORMULA CloudReconfiguration-PT-306-ReachabilityFireability-2024-08 FALSE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK

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 (141 resets) in 249 ms. (160 steps per ms) remains 11/11 properties
BEST_FIRST walk for 40002 steps (161 resets) in 473 ms. (84 steps per ms) remains 11/11 properties
Loading property file /tmp/ReachabilityCardinality8882359451172135318.prop.
BEST_FIRST walk for 40000 steps (148 resets) in 216 ms. (184 steps per ms) remains 11/11 properties
BEST_FIRST walk for 40004 steps (148 resets) in 132 ms. (300 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-15244658133351991316.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-14811101110041372420.kers'
[2026-05-23 02:19:18] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-15244658133351991316.kers, --Pflows, --basisKERS=/tmp/petrispot-output-14811101110041372420.kers]
Culled 0 columns in 2 ms.
// Phase 1: matrix 3094 rows 2584 cols 6459 entries
Finished phase 1 with 2579 SingleSign rule and 1 generalized
[2026-05-23 02:19:18] [INFO ] Computed 4 invariants in 18 ms
Computed 4 P flows in 19 ms.
Exported basis to /tmp/petrispot-output-14811101110041372420.kers
Total runtime 21 ms.
Excessive predecessor constraint size, skipping predecessor.
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/106 variables, 106/106 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/106 variables, 0/106 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 2 (OVERLAPS) 2467/2573 variables, 4/110 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/2573 variables, 2467/2577 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/2573 variables, 0/2577 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 5 (OVERLAPS) 3084/5657 variables, 2573/5150 constraints. Problems are: Problem set: 0 solved, 11 unsolved
SDD proceeding with computation,12 properties remain. new max is 4
SDD size :1 after 2
SDD proceeding with computation,12 properties remain. new max is 8
SDD size :2 after 3
SDD proceeding with computation,12 properties remain. new max is 16
SDD size :3 after 4
SDD proceeding with computation,12 properties remain. new max is 32
SDD size :4 after 5
SDD proceeding with computation,12 properties remain. new max is 64
SDD size :5 after 6
SDD proceeding with computation,12 properties remain. new max is 128
SDD size :6 after 7
SDD proceeding with computation,12 properties remain. new max is 256
SDD size :7 after 9
SDD proceeding with computation,12 properties remain. new max is 512
SDD size :9 after 12
SDD proceeding with computation,12 properties remain. new max is 1024
SDD size :12 after 27
At refinement iteration 6 (INCLUDED_ONLY) 0/5657 variables, 0/5150 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 7 (OVERLAPS) 2/5659 variables, 1/5151 constraints. Problems are: Problem set: 0 solved, 11 unsolved
SDD proceeding with computation,12 properties remain. new max is 2048
SDD size :27 after 645
SDD proceeding with computation,12 properties remain. new max is 4096
SDD size :645 after 1545
At refinement iteration 8 (INCLUDED_ONLY) 0/5659 variables, 1/5152 constraints. Problems are: Problem set: 0 solved, 11 unsolved
Reachability property CloudReconfiguration-PT-306-ReachabilityFireability-2024-05 is true.
FORMULA CloudReconfiguration-PT-306-ReachabilityFireability-2024-05 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING
SDD proceeding with computation,11 properties remain. new max is 4096
SDD size :1545 after 8352
Error getting values : (error "Timeout of Z3 solver reached")
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 5659/5678 variables, and 5152 constraints, problems are : Problem set: 1 solved, 10 unsolved in 5082 ms.
Refiners :[Domain max(s): 2574/2584 constraints, Generalized P Invariants (flows): 4/4 constraints, State Equation: 2574/2584 constraints, PredecessorRefiner: 11/9 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 1 solved, 10 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/105 variables, 105/105 constraints. Problems are: Problem set: 1 solved, 10 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/105 variables, 0/105 constraints. Problems are: Problem set: 1 solved, 10 unsolved
Reachability property CloudReconfiguration-PT-306-ReachabilityFireability-2024-13 is true.
FORMULA CloudReconfiguration-PT-306-ReachabilityFireability-2024-13 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING
At refinement iteration 2 (OVERLAPS) 2468/2573 variables, 4/109 constraints. Problems are: Problem set: 2 solved, 9 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/2573 variables, 2468/2577 constraints. Problems are: Problem set: 2 solved, 9 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/2573 variables, 0/2577 constraints. Problems are: Problem set: 2 solved, 9 unsolved
SDD proceeding with computation,10 properties remain. new max is 4096
SDD size :8352 after 16351
Problem CloudReconfiguration-PT-306-ReachabilityFireability-2024-03 is UNSAT
FORMULA CloudReconfiguration-PT-306-ReachabilityFireability-2024-03 TRUE TECHNIQUES SMT_REFINEMENT
At refinement iteration 5 (OVERLAPS) 3084/5657 variables, 2573/5150 constraints. Problems are: Problem set: 3 solved, 8 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/5657 variables, 7/5157 constraints. Problems are: Problem set: 3 solved, 8 unsolved
SDD proceeding with computation,10 properties remain. new max is 8192
SDD size :16351 after 19956
Reachability property CloudReconfiguration-PT-306-ReachabilityFireability-2024-07 is true.
FORMULA CloudReconfiguration-PT-306-ReachabilityFireability-2024-07 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 5657/5678 variables, and 5157 constraints, problems are : Problem set: 4 solved, 7 unsolved in 5019 ms.
Refiners :[Domain max(s): 2573/2584 constraints, Generalized P Invariants (flows): 4/4 constraints, State Equation: 2573/2584 constraints, PredecessorRefiner: 9/9 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 10401ms problems are : Problem set: 4 solved, 7 unsolved
Skipping Parikh replay, no witness traces provided.
Support contains 66 out of 2584 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 2584/2584 places, 3094/3094 transitions.
Graph (trivial) has 2788 edges and 2584 vertex of which 699 / 2584 are part of one of the 55 SCC in 14 ms
Free SCC test removed 644 places
Drop transitions (Empty/Sink Transition effects.) removed 786 transitions
Reduce isomorphic transitions removed 786 transitions.
Graph (complete) has 2586 edges and 1940 vertex of which 1926 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 1185 transitions
Trivial Post-agglo rules discarded 1185 transitions
Performed 1185 trivial Post agglomeration. Transition count delta: 1185
Iterating post reduction 0 with 1192 rules applied. Total rules applied 1194 place count 1926 transition count 1107
Reduce places removed 1185 places and 0 transitions.
Ensure Unique test removed 60 transitions
Reduce isomorphic transitions removed 60 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 46 transitions
Trivial Post-agglo rules discarded 46 transitions
Performed 46 trivial Post agglomeration. Transition count delta: 46
Iterating post reduction 1 with 1291 rules applied. Total rules applied 2485 place count 741 transition count 1001
Reduce places removed 46 places and 0 transitions.
Ensure Unique test removed 4 transitions
Reduce isomorphic transitions removed 4 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 3 transitions
Trivial Post-agglo rules discarded 3 transitions
Performed 3 trivial Post agglomeration. Transition count delta: 3
Iterating post reduction 2 with 53 rules applied. Total rules applied 2538 place count 695 transition count 994
Reduce places removed 3 places and 0 transitions.
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 1 transitions
Trivial Post-agglo rules discarded 1 transitions
Performed 1 trivial Post agglomeration. Transition count delta: 1
Iterating post reduction 3 with 5 rules applied. Total rules applied 2543 place count 692 transition count 992
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 2547 place count 691 transition count 989
Reduce places removed 2 places and 0 transitions.
Performed 63 Post agglomeration using F-continuation condition.Transition count delta: 63
Iterating post reduction 5 with 65 rules applied. Total rules applied 2612 place count 689 transition count 926
Reduce places removed 63 places and 0 transitions.
Ensure Unique test removed 10 transitions
Reduce isomorphic transitions removed 10 transitions.
Iterating post reduction 6 with 73 rules applied. Total rules applied 2685 place count 626 transition count 916
Performed 26 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 7 with 26 Pre rules applied. Total rules applied 2685 place count 626 transition count 890
Deduced a syphon composed of 26 places in 2 ms
Reduce places removed 26 places and 0 transitions.
Iterating global reduction 7 with 52 rules applied. Total rules applied 2737 place count 600 transition count 890
Discarding 85 places :
Symmetric choice reduction at 7 with 85 rule applications. Total rules 2822 place count 515 transition count 805
Iterating global reduction 7 with 85 rules applied. Total rules applied 2907 place count 515 transition count 805
Performed 6 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 7 with 6 Pre rules applied. Total rules applied 2907 place count 515 transition count 799
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 2919 place count 509 transition count 799
Discarding 58 places :
Symmetric choice reduction at 7 with 58 rule applications. Total rules 2977 place count 451 transition count 741
Iterating global reduction 7 with 58 rules applied. Total rules applied 3035 place count 451 transition count 741
Ensure Unique test removed 13 transitions
Reduce isomorphic transitions removed 13 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 7 with 26 rules applied. Total rules applied 3061 place count 451 transition count 715
Reduce places removed 13 places and 0 transitions.
Ensure Unique test removed 6 transitions
Reduce isomorphic transitions removed 6 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 6 transitions
Trivial Post-agglo rules discarded 6 transitions
Performed 6 trivial Post agglomeration. Transition count delta: 6
Iterating post reduction 8 with 25 rules applied. Total rules applied 3086 place count 438 transition count 703
Reduce places removed 6 places and 0 transitions.
Iterating post reduction 9 with 6 rules applied. Total rules applied 3092 place count 432 transition count 703
Discarding 13 places :
Symmetric choice reduction at 10 with 13 rule applications. Total rules 3105 place count 419 transition count 684
Iterating global reduction 10 with 13 rules applied. Total rules applied 3118 place count 419 transition count 684
Ensure Unique test removed 4 transitions
Reduce isomorphic transitions removed 4 transitions.
Iterating post reduction 10 with 4 rules applied. Total rules applied 3122 place count 419 transition count 680
Discarding 6 places :
Symmetric choice reduction at 11 with 6 rule applications. Total rules 3128 place count 413 transition count 668
Iterating global reduction 11 with 6 rules applied. Total rules applied 3134 place count 413 transition count 668
Discarding 3 places :
Symmetric choice reduction at 11 with 3 rule applications. Total rules 3137 place count 410 transition count 662
Iterating global reduction 11 with 3 rules applied. Total rules applied 3140 place count 410 transition count 662
Performed 167 Post agglomeration using F-continuation condition with reduction of 64 identical transitions.
Deduced a syphon composed of 167 places in 0 ms
Reduce places removed 167 places and 0 transitions.
Iterating global reduction 11 with 334 rules applied. Total rules applied 3474 place count 243 transition count 431
Ensure Unique test removed 16 transitions
Reduce isomorphic transitions removed 16 transitions.
Iterating post reduction 11 with 16 rules applied. Total rules applied 3490 place count 243 transition count 415
Performed 4 Post agglomeration using F-continuation condition.Transition count delta: 4
Deduced a syphon composed of 4 places in 0 ms
Reduce places removed 4 places and 0 transitions.
Iterating global reduction 12 with 8 rules applied. Total rules applied 3498 place count 239 transition count 411
Ensure Unique test removed 4 transitions
Reduce isomorphic transitions removed 4 transitions.
Iterating post reduction 12 with 4 rules applied. Total rules applied 3502 place count 239 transition count 407
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 13 with 4 rules applied. Total rules applied 3506 place count 237 transition count 405
Ensure Unique test removed 4 transitions
Reduce isomorphic transitions removed 4 transitions.
Iterating post reduction 13 with 4 rules applied. Total rules applied 3510 place count 237 transition count 401
Performed 41 Post agglomeration using F-continuation condition with reduction of 16 identical transitions.
Deduced a syphon composed of 41 places in 1 ms
Reduce places removed 41 places and 0 transitions.
Iterating global reduction 14 with 82 rules applied. Total rules applied 3592 place count 196 transition count 430
Ensure Unique test removed 32 transitions
Reduce isomorphic transitions removed 32 transitions.
Iterating post reduction 14 with 32 rules applied. Total rules applied 3624 place count 196 transition count 398
Discarding 14 places :
Symmetric choice reduction at 15 with 14 rule applications. Total rules 3638 place count 182 transition count 369
Iterating global reduction 15 with 14 rules applied. Total rules applied 3652 place count 182 transition count 369
Discarding 2 places :
Symmetric choice reduction at 15 with 2 rule applications. Total rules 3654 place count 180 transition count 365
Iterating global reduction 15 with 2 rules applied. Total rules applied 3656 place count 180 transition count 365
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 15 with 1 rules applied. Total rules applied 3657 place count 180 transition count 364
Drop transitions (Redundant composition of simpler transitions.) removed 29 transitions
Redundant transition composition rules discarded 29 transitions
Iterating global reduction 16 with 29 rules applied. Total rules applied 3686 place count 180 transition count 335
Free-agglomeration rule applied 10 times.
Iterating global reduction 16 with 10 rules applied. Total rules applied 3696 place count 180 transition count 325
Reduce places removed 10 places and 0 transitions.
Iterating post reduction 16 with 10 rules applied. Total rules applied 3706 place count 170 transition count 325
Drop transitions (Redundant composition of simpler transitions.) removed 2 transitions
Redundant transition composition rules discarded 2 transitions
Iterating global reduction 17 with 2 rules applied. Total rules applied 3708 place count 170 transition count 323
Partial Free-agglomeration rule applied 8 times.
Drop transitions (Partial Free agglomeration) removed 8 transitions
Iterating global reduction 17 with 8 rules applied. Total rules applied 3716 place count 170 transition count 323
Partial Post-agglomeration rule applied 1 times.
Drop transitions (Partial Post agglomeration) removed 1 transitions
Iterating global reduction 17 with 1 rules applied. Total rules applied 3717 place count 170 transition count 323
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 17 with 1 rules applied. Total rules applied 3718 place count 169 transition count 322
Applied a total of 3718 rules in 348 ms. Remains 169 /2584 variables (removed 2415) and now considering 322/3094 (removed 2772) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 358 ms. Remains : 169/2584 places, 322/3094 transitions.
RANDOM walk for 40000 steps (3521 resets) in 397 ms. (100 steps per ms) remains 4/7 properties
FORMULA CloudReconfiguration-PT-306-ReachabilityFireability-2024-15 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA CloudReconfiguration-PT-306-ReachabilityFireability-2024-06 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA CloudReconfiguration-PT-306-ReachabilityFireability-2024-01 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
BEST_FIRST walk for 40003 steps (881 resets) in 101 ms. (392 steps per ms) remains 3/4 properties
FORMULA CloudReconfiguration-PT-306-ReachabilityFireability-2024-09 FALSE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 40003 steps (906 resets) in 74 ms. (533 steps per ms) remains 2/3 properties
FORMULA CloudReconfiguration-PT-306-ReachabilityFireability-2024-04 TRUE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 40003 steps (968 resets) in 145 ms. (273 steps per ms) remains 2/2 properties
[2026-05-23 02:19:28] [INFO ] Flow matrix only has 314 transitions (discarded 8 similar events)
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-3293101795499516502.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-14446631838288545251.kers'
[2026-05-23 02:19:28] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-3293101795499516502.kers, --Pflows, --basisKERS=/tmp/petrispot-output-14446631838288545251.kers]
Culled 0 columns in 0 ms.
// Phase 1: matrix 314 rows 169 cols 874 entries
Finished phase 1 with 166 SingleSign rule and 0 generalized
[2026-05-23 02:19:28] [INFO ] Computed 3 invariants in 1 ms
Computed 3 P flows in 1 ms.
Exported basis to /tmp/petrispot-output-14446631838288545251.kers
Total runtime 2 ms.
[2026-05-23 02:19:28] [INFO ] State equation strengthened by 4 read => feed constraints.
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/26 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 1 (OVERLAPS) 119/145 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/145 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 3 (OVERLAPS) 290/435 variables, 145/148 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/435 variables, 0/148 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 5 (OVERLAPS) 37/472 variables, 16/164 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/472 variables, 4/168 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/472 variables, 0/168 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 8 (OVERLAPS) 10/482 variables, 7/175 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/482 variables, 0/175 constraints. Problems are: Problem set: 0 solved, 2 unsolved
Problem CloudReconfiguration-PT-306-ReachabilityFireability-2024-10 is UNSAT
FORMULA CloudReconfiguration-PT-306-ReachabilityFireability-2024-10 FALSE TECHNIQUES SMT_REFINEMENT
At refinement iteration 10 (OVERLAPS) 1/483 variables, 1/176 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/483 variables, 0/176 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/483 variables, 0/176 constraints. Problems are: Problem set: 1 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 483/483 variables, and 176 constraints, problems are : Problem set: 1 solved, 1 unsolved in 155 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 169/169 constraints, ReadFeed: 4/4 constraints, PredecessorRefiner: 2/2 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 1 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/12 variables, 0/0 constraints. Problems are: Problem set: 1 solved, 1 unsolved
Problem CloudReconfiguration-PT-306-ReachabilityFireability-2024-00 is UNSAT
FORMULA CloudReconfiguration-PT-306-ReachabilityFireability-2024-00 TRUE TECHNIQUES SMT_REFINEMENT
After SMT solving in domain Int declared 142/483 variables, and 3 constraints, problems are : Problem set: 2 solved, 0 unsolved in 42 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/169 constraints, ReadFeed: 0/4 constraints, PredecessorRefiner: 0/2 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 217ms problems are : Problem set: 2 solved, 0 unsolved
Skipping Parikh replay, no witness traces provided.
ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
All properties solved without resorting to model-checking.
Total runtime 13871 ms.

BK_STOP 1779502769241

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

+ export BINDIR=/home/mcc/BenchKit/bin//../itstools/bin//../
+ BINDIR=/home/mcc/BenchKit/bin//../itstools/bin//../
++ pwd
+ export MODEL=/home/mcc/execution
+ MODEL=/home/mcc/execution
+ [[ ReachabilityFireability = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution ReachabilityFireability -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600
+ ulimit -s 65536
+ [[ -z '' ]]
+ export LTSMIN_MEM_SIZE=8589934592
+ LTSMIN_MEM_SIZE=8589934592
++ sed s/.jar//
++ perl -pe 's/.*\.//g'
++ ls /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202604301425.jar
+ 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-306"
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-306, 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-177946967500159"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/CloudReconfiguration-PT-306.tgz
mv CloudReconfiguration-PT-306 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 ;