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-177946967600263.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-320, examination is ReachabilityFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r066-tall-177946967600263
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 1.2M
-rw-r--r-- 1 mcc users 8.1K 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 6.1K Mar 6 08:53 CTLFireability.txt
-rw-r--r-- 1 mcc users 55K 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 4.0K Mar 15 08:26 LTLCardinality.txt
-rw-r--r-- 1 mcc users 27K Mar 15 08:26 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.4K Mar 15 08:27 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K Mar 15 08:27 LTLFireability.xml
-rw-r--r-- 1 mcc users 11K Mar 6 08:53 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 100K Mar 6 08:53 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 9.5K Mar 6 08:53 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 80K Mar 6 08:53 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.8K Mar 15 08:27 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.8K Mar 15 08:27 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 661K 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-320-ReachabilityFireability-2024-00
FORMULA_NAME CloudReconfiguration-PT-320-ReachabilityFireability-2024-01
FORMULA_NAME CloudReconfiguration-PT-320-ReachabilityFireability-2024-02
FORMULA_NAME CloudReconfiguration-PT-320-ReachabilityFireability-2024-03
FORMULA_NAME CloudReconfiguration-PT-320-ReachabilityFireability-2024-04
FORMULA_NAME CloudReconfiguration-PT-320-ReachabilityFireability-2024-05
FORMULA_NAME CloudReconfiguration-PT-320-ReachabilityFireability-2024-06
FORMULA_NAME CloudReconfiguration-PT-320-ReachabilityFireability-2024-07
FORMULA_NAME CloudReconfiguration-PT-320-ReachabilityFireability-2024-08
FORMULA_NAME CloudReconfiguration-PT-320-ReachabilityFireability-2024-09
FORMULA_NAME CloudReconfiguration-PT-320-ReachabilityFireability-2024-10
FORMULA_NAME CloudReconfiguration-PT-320-ReachabilityFireability-2024-11
FORMULA_NAME CloudReconfiguration-PT-320-ReachabilityFireability-2024-12
FORMULA_NAME CloudReconfiguration-PT-320-ReachabilityFireability-2024-13
FORMULA_NAME CloudReconfiguration-PT-320-ReachabilityFireability-2024-14
FORMULA_NAME CloudReconfiguration-PT-320-ReachabilityFireability-2024-15

=== Now, execution of the tool begins

BK_START 1779517267072

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-320
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
ReachabilityFireability PT
Running Version 202604301425
[2026-05-23 06:21:08] [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 06:21:08] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-23 06:21:08] [INFO ] Load time of PNML (sax parser for PT used): 167 ms
[2026-05-23 06:21:08] [INFO ] Transformed 2587 places.
[2026-05-23 06:21:08] [INFO ] Transformed 3099 transitions.
[2026-05-23 06:21:08] [INFO ] Found NUPN structural information;
[2026-05-23 06:21:08] [INFO ] Parsed PT model containing 2587 places and 3099 transitions and 6479 arcs in 274 ms.
Parsed 16 properties from file /home/mcc/execution/ReachabilityFireability.xml in 16 ms.
Working with output stream class java.io.PrintStream
RANDOM walk for 40000 steps (354 resets) in 1666 ms. (23 steps per ms) remains 11/16 properties
FORMULA CloudReconfiguration-PT-320-ReachabilityFireability-2024-15 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA CloudReconfiguration-PT-320-ReachabilityFireability-2024-14 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA CloudReconfiguration-PT-320-ReachabilityFireability-2024-11 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA CloudReconfiguration-PT-320-ReachabilityFireability-2024-03 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA CloudReconfiguration-PT-320-ReachabilityFireability-2024-00 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
BEST_FIRST walk for 40003 steps (104 resets) in 609 ms. (65 steps per ms) remains 11/11 properties
[2026-05-23 06:21:09] [INFO ] Flatten gal took : 342 ms
BEST_FIRST walk for 40001 steps (110 resets) in 277 ms. (143 steps per ms) remains 11/11 properties
BEST_FIRST walk for 40002 steps (106 resets) in 208 ms. (191 steps per ms) remains 11/11 properties
[2026-05-23 06:21:09] [INFO ] Flatten gal took : 126 ms
BEST_FIRST walk for 40002 steps (108 resets) in 188 ms. (211 steps per ms) remains 11/11 properties
[2026-05-23 06:21:09] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality7001994963294429814.gal : 82 ms
BEST_FIRST walk for 40002 steps (103 resets) in 245 ms. (162 steps per ms) remains 11/11 properties
[2026-05-23 06:21:09] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality4320674073272209585.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/ReachabilityCardinality7001994963294429814.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality4320674073272209585.prop' '--nowitness' '--gen-order' 'FOLLOW'

BEST_FIRST walk for 40002 steps (109 resets) in 172 ms. (231 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 ...328
BEST_FIRST walk for 40002 steps (111 resets) in 527 ms. (75 steps per ms) remains 11/11 properties
BEST_FIRST walk for 40003 steps (112 resets) in 239 ms. (166 steps per ms) remains 11/11 properties
BEST_FIRST walk for 40004 steps (116 resets) in 239 ms. (166 steps per ms) remains 11/11 properties
BEST_FIRST walk for 40004 steps (113 resets) in 199 ms. (200 steps per ms) remains 11/11 properties
BEST_FIRST walk for 40004 steps (112 resets) in 176 ms. (226 steps per ms) remains 11/11 properties
Loading property file /tmp/ReachabilityCardinality4320674073272209585.prop.
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-6004581533009845808.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-3131486044160393167.kers'
[2026-05-23 06:21:10] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-6004581533009845808.kers, --Pflows, --basisKERS=/tmp/petrispot-output-3131486044160393167.kers]
Culled 0 columns in 1 ms.
// Phase 1: matrix 3099 rows 2587 cols 6479 entries
Finished phase 1 with 2582 SingleSign rule and 1 generalized
[2026-05-23 06:21:10] [INFO ] Computed 4 invariants in 16 ms
Computed 4 P flows in 17 ms.
Exported basis to /tmp/petrispot-output-3131486044160393167.kers
Total runtime 20 ms.
Excessive predecessor constraint size, skipping predecessor.
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/190 variables, 190/190 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/190 variables, 0/190 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 2 (OVERLAPS) 2386/2576 variables, 4/194 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/2576 variables, 2386/2580 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/2576 variables, 0/2580 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 5 (OVERLAPS) 3089/5665 variables, 2576/5156 constraints. Problems are: Problem set: 0 solved, 11 unsolved
SDD proceeding with computation,11 properties remain. new max is 4
SDD size :1 after 2
SDD proceeding with computation,11 properties remain. new max is 8
SDD size :2 after 3
SDD proceeding with computation,11 properties remain. new max is 16
SDD size :3 after 4
SDD proceeding with computation,11 properties remain. new max is 32
SDD size :4 after 5
At refinement iteration 6 (INCLUDED_ONLY) 0/5665 variables, 0/5156 constraints. Problems are: Problem set: 0 solved, 11 unsolved
SDD proceeding with computation,11 properties remain. new max is 64
SDD size :5 after 6
SDD proceeding with computation,11 properties remain. new max is 128
SDD size :6 after 7
SDD proceeding with computation,11 properties remain. new max is 256
SDD size :7 after 9
SDD proceeding with computation,11 properties remain. new max is 512
SDD size :9 after 11
SDD proceeding with computation,11 properties remain. new max is 1024
SDD size :11 after 19
At refinement iteration 7 (OVERLAPS) 2/5667 variables, 1/5157 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/5667 variables, 1/5158 constraints. Problems are: Problem set: 0 solved, 11 unsolved
SDD proceeding with computation,11 properties remain. new max is 2048
SDD size :19 after 332
SDD proceeding with computation,11 properties remain. new max is 4096
SDD size :332 after 2316
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 5667/5686 variables, and 5158 constraints, problems are : Problem set: 0 solved, 11 unsolved in 5045 ms.
Refiners :[Domain max(s): 2577/2587 constraints, Generalized P Invariants (flows): 4/4 constraints, State Equation: 2577/2587 constraints, PredecessorRefiner: 11/8 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 11 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/190 variables, 190/190 constraints. Problems are: Problem set: 0 solved, 11 unsolved
Reachability property CloudReconfiguration-PT-320-ReachabilityFireability-2024-07 is true.
FORMULA CloudReconfiguration-PT-320-ReachabilityFireability-2024-07 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING
SDD proceeding with computation,10 properties remain. new max is 4096
SDD size :2316 after 5064
At refinement iteration 1 (INCLUDED_ONLY) 0/190 variables, 0/190 constraints. Problems are: Problem set: 1 solved, 10 unsolved
At refinement iteration 2 (OVERLAPS) 2386/2576 variables, 4/194 constraints. Problems are: Problem set: 1 solved, 10 unsolved
SDD proceeding with computation,10 properties remain. new max is 8192
At refinement iteration 3 (INCLUDED_ONLY) 0/2576 variables, 2386/2580 constraints. Problems are: Problem set: 1 solved, 10 unsolved
SDD size :5064 after 10064
SDD proceeding with computation,10 properties remain. new max is 16384
SDD size :10064 after 639641
At refinement iteration 4 (INCLUDED_ONLY) 0/2576 variables, 0/2580 constraints. Problems are: Problem set: 1 solved, 10 unsolved
At refinement iteration 5 (OVERLAPS) 3089/5665 variables, 2576/5156 constraints. Problems are: Problem set: 1 solved, 10 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/5665 variables, 7/5163 constraints. Problems are: Problem set: 1 solved, 10 unsolved
Error getting values : (error "Timeout of Z3 solver reached")
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 5665/5686 variables, and 5163 constraints, problems are : Problem set: 1 solved, 10 unsolved in 5031 ms.
Refiners :[Domain max(s): 2576/2587 constraints, Generalized P Invariants (flows): 4/4 constraints, State Equation: 2576/2587 constraints, PredecessorRefiner: 10/8 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 10267ms problems are : Problem set: 1 solved, 10 unsolved
Skipping Parikh replay, no witness traces provided.
Support contains 189 out of 2587 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 2587/2587 places, 3099/3099 transitions.
Graph (trivial) has 2487 edges and 2587 vertex of which 465 / 2587 are part of one of the 43 SCC in 23 ms
Free SCC test removed 422 places
Drop transitions (Empty/Sink Transition effects.) removed 508 transitions
Reduce isomorphic transitions removed 508 transitions.
Graph (complete) has 2877 edges and 2165 vertex of which 2151 are kept as prefixes of interest. Removing 14 places using SCC suffix rule.7 ms
Discarding 14 places :
Also discarding 9 output transitions
Drop transitions (Output transitions of discarded places.) removed 9 transitions
Drop transitions (Empty/Sink Transition effects.) removed 4 transitions
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 6 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 1079 transitions
Trivial Post-agglo rules discarded 1079 transitions
Performed 1079 trivial Post agglomeration. Transition count delta: 1079
Iterating post reduction 0 with 1085 rules applied. Total rules applied 1087 place count 2151 transition count 1497
Reduce places removed 1079 places and 0 transitions.
Ensure Unique test removed 47 transitions
Reduce isomorphic transitions removed 47 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 29 transitions
Trivial Post-agglo rules discarded 29 transitions
Performed 29 trivial Post agglomeration. Transition count delta: 29
Iterating post reduction 1 with 1155 rules applied. Total rules applied 2242 place count 1072 transition count 1421
Reduce places removed 29 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 36 rules applied. Total rules applied 2278 place count 1043 transition count 1414
Reduce places removed 3 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 3 with 9 rules applied. Total rules applied 2287 place count 1040 transition count 1408
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 2 transitions
Trivial Post-agglo rules discarded 2 transitions
Performed 2 trivial Post agglomeration. Transition count delta: 2
Iterating post reduction 4 with 6 rules applied. Total rules applied 2293 place count 1037 transition count 1405
Reduce places removed 2 places and 0 transitions.
Performed 179 Post agglomeration using F-continuation condition.Transition count delta: 179
Iterating post reduction 5 with 181 rules applied. Total rules applied 2474 place count 1035 transition count 1226
Reduce places removed 179 places and 0 transitions.
Ensure Unique test removed 24 transitions
Reduce isomorphic transitions removed 24 transitions.
Performed 7 Post agglomeration using F-continuation condition.Transition count delta: 7
Iterating post reduction 6 with 210 rules applied. Total rules applied 2684 place count 856 transition count 1195
Reduce places removed 7 places and 0 transitions.
Iterating post reduction 7 with 7 rules applied. Total rules applied 2691 place count 849 transition count 1195
Performed 38 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 8 with 38 Pre rules applied. Total rules applied 2691 place count 849 transition count 1157
Deduced a syphon composed of 38 places in 3 ms
Reduce places removed 38 places and 0 transitions.
Iterating global reduction 8 with 76 rules applied. Total rules applied 2767 place count 811 transition count 1157
Discarding 90 places :
Symmetric choice reduction at 8 with 90 rule applications. Total rules 2857 place count 721 transition count 1067
Iterating global reduction 8 with 90 rules applied. Total rules applied 2947 place count 721 transition count 1067
Ensure Unique test removed 3 transitions
Reduce isomorphic transitions removed 3 transitions.
Iterating post reduction 8 with 3 rules applied. Total rules applied 2950 place count 721 transition count 1064
Performed 5 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 9 with 5 Pre rules applied. Total rules applied 2950 place count 721 transition count 1059
Deduced a syphon composed of 5 places in 1 ms
Reduce places removed 5 places and 0 transitions.
Iterating global reduction 9 with 10 rules applied. Total rules applied 2960 place count 716 transition count 1059
Discarding 44 places :
Symmetric choice reduction at 9 with 44 rule applications. Total rules 3004 place count 672 transition count 1015
Iterating global reduction 9 with 44 rules applied. Total rules applied 3048 place count 672 transition count 1015
Ensure Unique test removed 5 transitions
Reduce isomorphic transitions removed 5 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 5 transitions
Trivial Post-agglo rules discarded 5 transitions
Performed 5 trivial Post agglomeration. Transition count delta: 5
Iterating post reduction 9 with 10 rules applied. Total rules applied 3058 place count 672 transition count 1005
Reduce places removed 5 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 10 with 7 rules applied. Total rules applied 3065 place count 667 transition count 1003
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 11 with 1 rules applied. Total rules applied 3066 place count 666 transition count 1003
Discarding 4 places :
Symmetric choice reduction at 12 with 4 rule applications. Total rules 3070 place count 662 transition count 998
Iterating global reduction 12 with 4 rules applied. Total rules applied 3074 place count 662 transition count 998
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 12 with 1 rules applied. Total rules applied 3075 place count 662 transition count 997
Discarding 2 places :
Symmetric choice reduction at 13 with 2 rule applications. Total rules 3077 place count 660 transition count 993
Iterating global reduction 13 with 2 rules applied. Total rules applied 3079 place count 660 transition count 993
Discarding 2 places :
Symmetric choice reduction at 13 with 2 rule applications. Total rules 3081 place count 658 transition count 989
Iterating global reduction 13 with 2 rules applied. Total rules applied 3083 place count 658 transition count 989
Performed 171 Post agglomeration using F-continuation condition with reduction of 30 identical transitions.
Deduced a syphon composed of 171 places in 0 ms
Reduce places removed 171 places and 0 transitions.
Iterating global reduction 13 with 342 rules applied. Total rules applied 3425 place count 487 transition count 788
Ensure Unique test removed 25 transitions
Reduce isomorphic transitions removed 25 transitions.
Iterating post reduction 13 with 25 rules applied. Total rules applied 3450 place count 487 transition count 763
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 1 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 14 with 2 rules applied. Total rules applied 3452 place count 486 transition count 762
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 14 with 2 rules applied. Total rules applied 3454 place count 486 transition count 760
Performed 50 Post agglomeration using F-continuation condition with reduction of 17 identical transitions.
Deduced a syphon composed of 50 places in 1 ms
Reduce places removed 50 places and 0 transitions.
Iterating global reduction 15 with 100 rules applied. Total rules applied 3554 place count 436 transition count 803
Ensure Unique test removed 26 transitions
Reduce isomorphic transitions removed 26 transitions.
Iterating post reduction 15 with 26 rules applied. Total rules applied 3580 place count 436 transition count 777
Discarding 6 places :
Symmetric choice reduction at 16 with 6 rule applications. Total rules 3586 place count 430 transition count 765
Iterating global reduction 16 with 6 rules applied. Total rules applied 3592 place count 430 transition count 765
Drop transitions (Redundant composition of simpler transitions.) removed 41 transitions
Redundant transition composition rules discarded 41 transitions
Iterating global reduction 16 with 41 rules applied. Total rules applied 3633 place count 430 transition count 724
Discarding 1 places :
Symmetric choice reduction at 16 with 1 rule applications. Total rules 3634 place count 429 transition count 723
Iterating global reduction 16 with 1 rules applied. Total rules applied 3635 place count 429 transition count 723
Free-agglomeration rule applied 24 times.
Iterating global reduction 16 with 24 rules applied. Total rules applied 3659 place count 429 transition count 699
Reduce places removed 24 places and 0 transitions.
Iterating post reduction 16 with 24 rules applied. Total rules applied 3683 place count 405 transition count 699
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 3685 place count 405 transition count 697
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 17 with 1 rules applied. Total rules applied 3686 place count 405 transition count 696
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 17 with 1 rules applied. Total rules applied 3687 place count 404 transition count 696
Partial Free-agglomeration rule applied 15 times.
Drop transitions (Partial Free agglomeration) removed 15 transitions
Iterating global reduction 18 with 15 rules applied. Total rules applied 3702 place count 404 transition count 696
Partial Post-agglomeration rule applied 5 times.
Drop transitions (Partial Post agglomeration) removed 5 transitions
Iterating global reduction 18 with 5 rules applied. Total rules applied 3707 place count 404 transition count 696
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 18 with 1 rules applied. Total rules applied 3708 place count 403 transition count 695
Applied a total of 3708 rules in 679 ms. Remains 403 /2587 variables (removed 2184) and now considering 695/3099 (removed 2404) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 691 ms. Remains : 403/2587 places, 695/3099 transitions.
RANDOM walk for 40000 steps (2571 resets) in 909 ms. (43 steps per ms) remains 9/10 properties
FORMULA CloudReconfiguration-PT-320-ReachabilityFireability-2024-01 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
BEST_FIRST walk for 40004 steps (485 resets) in 219 ms. (181 steps per ms) remains 9/9 properties
BEST_FIRST walk for 40002 steps (616 resets) in 174 ms. (228 steps per ms) remains 9/9 properties
BEST_FIRST walk for 40002 steps (599 resets) in 106 ms. (373 steps per ms) remains 9/9 properties
BEST_FIRST walk for 40003 steps (578 resets) in 116 ms. (341 steps per ms) remains 9/9 properties
BEST_FIRST walk for 40003 steps (583 resets) in 164 ms. (242 steps per ms) remains 9/9 properties
BEST_FIRST walk for 40003 steps (599 resets) in 156 ms. (254 steps per ms) remains 9/9 properties
BEST_FIRST walk for 40001 steps (577 resets) in 126 ms. (314 steps per ms) remains 9/9 properties
BEST_FIRST walk for 40003 steps (594 resets) in 80 ms. (493 steps per ms) remains 9/9 properties
BEST_FIRST walk for 40004 steps (588 resets) in 112 ms. (354 steps per ms) remains 8/9 properties
FORMULA CloudReconfiguration-PT-320-ReachabilityFireability-2024-12 TRUE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
[2026-05-23 06:21:21] [INFO ] Flow matrix only has 690 transitions (discarded 5 similar events)
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-6520719051109832393.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-14373855118711410137.kers'
[2026-05-23 06:21:21] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-6520719051109832393.kers, --Pflows, --basisKERS=/tmp/petrispot-output-14373855118711410137.kers]
Culled 0 columns in 0 ms.
// Phase 1: matrix 690 rows 403 cols 1654 entries
Finished phase 1 with 401 SingleSign rule and 0 generalized
[2026-05-23 06:21:21] [INFO ] Computed 2 invariants in 3 ms
Computed 2 P flows in 3 ms.
Exported basis to /tmp/petrispot-output-14373855118711410137.kers
Total runtime 6 ms.
[2026-05-23 06:21:21] [INFO ] State equation strengthened by 6 read => feed constraints.
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/147 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 8 unsolved
At refinement iteration 1 (OVERLAPS) 139/286 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 8 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/286 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 8 unsolved
At refinement iteration 3 (OVERLAPS) 621/907 variables, 286/288 constraints. Problems are: Problem set: 0 solved, 8 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/907 variables, 2/290 constraints. Problems are: Problem set: 0 solved, 8 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/907 variables, 0/290 constraints. Problems are: Problem set: 0 solved, 8 unsolved
At refinement iteration 6 (OVERLAPS) 165/1072 variables, 98/388 constraints. Problems are: Problem set: 0 solved, 8 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/1072 variables, 4/392 constraints. Problems are: Problem set: 0 solved, 8 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/1072 variables, 0/392 constraints. Problems are: Problem set: 0 solved, 8 unsolved
At refinement iteration 9 (OVERLAPS) 20/1092 variables, 18/410 constraints. Problems are: Problem set: 0 solved, 8 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/1092 variables, 0/410 constraints. Problems are: Problem set: 0 solved, 8 unsolved
Problem CloudReconfiguration-PT-320-ReachabilityFireability-2024-04 is UNSAT
FORMULA CloudReconfiguration-PT-320-ReachabilityFireability-2024-04 FALSE TECHNIQUES SMT_REFINEMENT
At refinement iteration 11 (OVERLAPS) 1/1093 variables, 1/411 constraints. Problems are: Problem set: 1 solved, 7 unsolved
Problem CloudReconfiguration-PT-320-ReachabilityFireability-2024-05 is UNSAT
FORMULA CloudReconfiguration-PT-320-ReachabilityFireability-2024-05 FALSE TECHNIQUES SMT_REFINEMENT
At refinement iteration 12 (INCLUDED_ONLY) 0/1093 variables, 1/412 constraints. Problems are: Problem set: 2 solved, 6 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/1093 variables, 0/412 constraints. Problems are: Problem set: 2 solved, 6 unsolved
At refinement iteration 14 (OVERLAPS) 0/1093 variables, 0/412 constraints. Problems are: Problem set: 2 solved, 6 unsolved
No progress, stopping.
After SMT solving in domain Real declared 1093/1093 variables, and 412 constraints, problems are : Problem set: 2 solved, 6 unsolved in 3482 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, State Equation: 403/403 constraints, ReadFeed: 6/6 constraints, PredecessorRefiner: 8/6 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 2 solved, 6 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/136 variables, 0/0 constraints. Problems are: Problem set: 2 solved, 6 unsolved
At refinement iteration 1 (OVERLAPS) 145/281 variables, 2/2 constraints. Problems are: Problem set: 2 solved, 6 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/281 variables, 0/2 constraints. Problems are: Problem set: 2 solved, 6 unsolved
At refinement iteration 3 (OVERLAPS) 611/892 variables, 281/283 constraints. Problems are: Problem set: 2 solved, 6 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/892 variables, 2/285 constraints. Problems are: Problem set: 2 solved, 6 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/892 variables, 0/285 constraints. Problems are: Problem set: 2 solved, 6 unsolved
At refinement iteration 6 (OVERLAPS) 168/1060 variables, 97/382 constraints. Problems are: Problem set: 2 solved, 6 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/1060 variables, 4/386 constraints. Problems are: Problem set: 2 solved, 6 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/1060 variables, 4/390 constraints. Problems are: Problem set: 2 solved, 6 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/1060 variables, 1/391 constraints. Problems are: Problem set: 2 solved, 6 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/1060 variables, 0/391 constraints. Problems are: Problem set: 2 solved, 6 unsolved
Problem CloudReconfiguration-PT-320-ReachabilityFireability-2024-08 is UNSAT
FORMULA CloudReconfiguration-PT-320-ReachabilityFireability-2024-08 TRUE TECHNIQUES SMT_REFINEMENT
At refinement iteration 11 (OVERLAPS) 28/1088 variables, 21/412 constraints. Problems are: Problem set: 3 solved, 5 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/1088 variables, 0/412 constraints. Problems are: Problem set: 3 solved, 5 unsolved
At refinement iteration 13 (OVERLAPS) 5/1093 variables, 4/416 constraints. Problems are: Problem set: 3 solved, 5 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/1093 variables, 0/416 constraints. Problems are: Problem set: 3 solved, 5 unsolved
At refinement iteration 15 (OVERLAPS) 0/1093 variables, 0/416 constraints. Problems are: Problem set: 3 solved, 5 unsolved
No progress, stopping.
After SMT solving in domain Int declared 1093/1093 variables, and 416 constraints, problems are : Problem set: 3 solved, 5 unsolved in 2305 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, State Equation: 403/403 constraints, ReadFeed: 6/6 constraints, PredecessorRefiner: 6/6 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 5837ms problems are : Problem set: 3 solved, 5 unsolved
FORMULA CloudReconfiguration-PT-320-ReachabilityFireability-2024-06 TRUE TECHNIQUES PARIKH_WALK
FORMULA CloudReconfiguration-PT-320-ReachabilityFireability-2024-09 TRUE TECHNIQUES PARIKH_WALK
FORMULA CloudReconfiguration-PT-320-ReachabilityFireability-2024-10 FALSE TECHNIQUES PARIKH_WALK
FORMULA CloudReconfiguration-PT-320-ReachabilityFireability-2024-13 FALSE TECHNIQUES PARIKH_WALK
Parikh walk visited 4 properties in 543 ms.
Support contains 54 out of 403 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 403/403 places, 695/695 transitions.
Graph (trivial) has 392 edges and 403 vertex of which 79 / 403 are part of one of the 30 SCC in 1 ms
Free SCC test removed 49 places
Drop transitions (Empty/Sink Transition effects.) removed 83 transitions
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 85 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 60 transitions
Trivial Post-agglo rules discarded 60 transitions
Performed 60 trivial Post agglomeration. Transition count delta: 60
Iterating post reduction 0 with 60 rules applied. Total rules applied 61 place count 354 transition count 550
Reduce places removed 60 places and 0 transitions.
Ensure Unique test removed 3 transitions
Reduce isomorphic transitions removed 3 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 1 with 64 rules applied. Total rules applied 125 place count 294 transition count 546
Reduce places removed 1 places and 0 transitions.
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Performed 12 Post agglomeration using F-continuation condition.Transition count delta: 12
Iterating post reduction 2 with 14 rules applied. Total rules applied 139 place count 293 transition count 533
Reduce places removed 12 places and 0 transitions.
Ensure Unique test removed 3 transitions
Reduce isomorphic transitions removed 3 transitions.
Iterating post reduction 3 with 15 rules applied. Total rules applied 154 place count 281 transition count 530
Performed 16 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 4 with 16 Pre rules applied. Total rules applied 154 place count 281 transition count 514
Deduced a syphon composed of 16 places in 0 ms
Reduce places removed 16 places and 0 transitions.
Iterating global reduction 4 with 32 rules applied. Total rules applied 186 place count 265 transition count 514
Discarding 13 places :
Symmetric choice reduction at 4 with 13 rule applications. Total rules 199 place count 252 transition count 497
Iterating global reduction 4 with 13 rules applied. Total rules applied 212 place count 252 transition count 497
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 4 with 2 rules applied. Total rules applied 214 place count 252 transition count 495
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 5 with 1 Pre rules applied. Total rules applied 214 place count 252 transition count 494
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 5 with 2 rules applied. Total rules applied 216 place count 251 transition count 494
Discarding 2 places :
Symmetric choice reduction at 5 with 2 rule applications. Total rules 218 place count 249 transition count 492
Iterating global reduction 5 with 2 rules applied. Total rules applied 220 place count 249 transition count 492
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 5 with 1 rules applied. Total rules applied 221 place count 249 transition count 491
Performed 46 Post agglomeration using F-continuation condition with reduction of 13 identical transitions.
Deduced a syphon composed of 46 places in 0 ms
Reduce places removed 46 places and 0 transitions.
Iterating global reduction 6 with 92 rules applied. Total rules applied 313 place count 203 transition count 432
Ensure Unique test removed 22 transitions
Reduce isomorphic transitions removed 22 transitions.
Iterating post reduction 6 with 22 rules applied. Total rules applied 335 place count 203 transition count 410
Discarding 4 places :
Symmetric choice reduction at 7 with 4 rule applications. Total rules 339 place count 199 transition count 402
Iterating global reduction 7 with 4 rules applied. Total rules applied 343 place count 199 transition count 402
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 7 with 2 rules applied. Total rules applied 345 place count 199 transition count 400
Discarding 1 places :
Symmetric choice reduction at 8 with 1 rule applications. Total rules 346 place count 198 transition count 399
Iterating global reduction 8 with 1 rules applied. Total rules applied 347 place count 198 transition count 399
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 8 with 2 rules applied. Total rules applied 349 place count 198 transition count 397
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 9 with 4 rules applied. Total rules applied 353 place count 196 transition count 395
Ensure Unique test removed 3 transitions
Reduce isomorphic transitions removed 3 transitions.
Iterating post reduction 9 with 3 rules applied. Total rules applied 356 place count 196 transition count 392
Performed 19 Post agglomeration using F-continuation condition with reduction of 22 identical transitions.
Deduced a syphon composed of 19 places in 0 ms
Reduce places removed 19 places and 0 transitions.
Iterating global reduction 10 with 38 rules applied. Total rules applied 394 place count 177 transition count 413
Ensure Unique test removed 19 transitions
Reduce isomorphic transitions removed 19 transitions.
Iterating post reduction 10 with 19 rules applied. Total rules applied 413 place count 177 transition count 394
Discarding 7 places :
Symmetric choice reduction at 11 with 7 rule applications. Total rules 420 place count 170 transition count 376
Iterating global reduction 11 with 7 rules applied. Total rules applied 427 place count 170 transition count 376
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 11 with 1 rules applied. Total rules applied 428 place count 170 transition count 375
Discarding 2 places :
Symmetric choice reduction at 12 with 2 rule applications. Total rules 430 place count 168 transition count 373
Iterating global reduction 12 with 2 rules applied. Total rules applied 432 place count 168 transition count 373
Ensure Unique test removed 4 transitions
Reduce isomorphic transitions removed 4 transitions.
Iterating post reduction 12 with 4 rules applied. Total rules applied 436 place count 168 transition count 369
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 13 with 2 rules applied. Total rules applied 438 place count 167 transition count 368
Drop transitions (Redundant composition of simpler transitions.) removed 30 transitions
Redundant transition composition rules discarded 30 transitions
Iterating global reduction 13 with 30 rules applied. Total rules applied 468 place count 167 transition count 338
Discarding 1 places :
Symmetric choice reduction at 13 with 1 rule applications. Total rules 469 place count 166 transition count 337
Iterating global reduction 13 with 1 rules applied. Total rules applied 470 place count 166 transition count 337
Discarding 1 places :
Symmetric choice reduction at 13 with 1 rule applications. Total rules 471 place count 165 transition count 336
Iterating global reduction 13 with 1 rules applied. Total rules applied 472 place count 165 transition count 336
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 13 with 1 rules applied. Total rules applied 473 place count 165 transition count 335
Free-agglomeration rule applied 10 times.
Iterating global reduction 14 with 10 rules applied. Total rules applied 483 place count 165 transition count 325
Reduce places removed 10 places and 0 transitions.
Iterating post reduction 14 with 10 rules applied. Total rules applied 493 place count 155 transition count 325
Drop transitions (Redundant composition of simpler transitions.) removed 2 transitions
Redundant transition composition rules discarded 2 transitions
Iterating global reduction 15 with 2 rules applied. Total rules applied 495 place count 155 transition count 323
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 15 with 1 rules applied. Total rules applied 496 place count 155 transition count 323
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 15 with 1 rules applied. Total rules applied 497 place count 154 transition count 323
Partial Free-agglomeration rule applied 7 times.
Drop transitions (Partial Free agglomeration) removed 7 transitions
Iterating global reduction 16 with 7 rules applied. Total rules applied 504 place count 154 transition count 323
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 16 with 2 rules applied. Total rules applied 506 place count 154 transition count 321
Discarding 1 places :
Symmetric choice reduction at 17 with 1 rule applications. Total rules 507 place count 153 transition count 320
Iterating global reduction 17 with 1 rules applied. Total rules applied 508 place count 153 transition count 320
Drop transitions (Redundant composition of simpler transitions.) removed 1 transitions
Redundant transition composition rules discarded 1 transitions
Iterating global reduction 17 with 1 rules applied. Total rules applied 509 place count 153 transition count 319
Partial Post-agglomeration rule applied 4 times.
Drop transitions (Partial Post agglomeration) removed 4 transitions
Iterating global reduction 17 with 4 rules applied. Total rules applied 513 place count 153 transition count 319
Applied a total of 513 rules in 108 ms. Remains 153 /403 variables (removed 250) and now considering 319/695 (removed 376) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 108 ms. Remains : 153/403 places, 319/695 transitions.
RANDOM walk for 40000 steps (3306 resets) in 596 ms. (67 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40002 steps (133 resets) in 87 ms. (454 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 2302469 steps, run timeout after 3005 ms. (steps per millisecond=766 ) properties seen :0 out of 1
Probabilistic random walk after 2302469 steps, saw 438628 distinct states, run finished after 3012 ms. (steps per millisecond=764 ) properties seen :0
[2026-05-23 06:21:31] [INFO ] Flow matrix only has 308 transitions (discarded 11 similar events)
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-13521496612011537837.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-16428604320182350746.kers'
[2026-05-23 06:21:31] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-13521496612011537837.kers, --Pflows, --basisKERS=/tmp/petrispot-output-16428604320182350746.kers]
Culled 0 columns in 0 ms.
// Phase 1: matrix 308 rows 153 cols 869 entries
Finished phase 1 with 151 SingleSign rule and 0 generalized
[2026-05-23 06:21:31] [INFO ] Computed 2 invariants in 1 ms
Computed 2 P flows in 1 ms.
Exported basis to /tmp/petrispot-output-16428604320182350746.kers
Total runtime 1 ms.
[2026-05-23 06:21:31] [INFO ] State equation strengthened by 8 read => feed constraints.
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/54 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 56/110 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/110 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 291/401 variables, 110/112 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/401 variables, 3/115 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/401 variables, 0/115 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 58/459 variables, 41/156 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/459 variables, 5/161 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/459 variables, 0/161 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 2/461 variables, 2/163 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/461 variables, 0/163 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 0/461 variables, 0/163 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 461/461 variables, and 163 constraints, problems are : Problem set: 0 solved, 1 unsolved in 193 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, State Equation: 153/153 constraints, ReadFeed: 8/8 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) 0/54 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 56/110 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/110 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 291/401 variables, 110/112 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/401 variables, 3/115 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/401 variables, 0/115 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 58/459 variables, 41/156 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/459 variables, 5/161 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/459 variables, 0/161 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 2/461 variables, 2/163 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/461 variables, 0/163 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 0/461 variables, 0/163 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 461/461 variables, and 163 constraints, problems are : Problem set: 0 solved, 1 unsolved in 203 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, State Equation: 153/153 constraints, ReadFeed: 8/8 constraints, PredecessorRefiner: 1/0 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 415ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 14 ms.
Support contains 54 out of 153 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 153/153 places, 319/319 transitions.
Applied a total of 0 rules in 10 ms. Remains 153 /153 variables (removed 0) and now considering 319/319 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 13 ms. Remains : 153/153 places, 319/319 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 153/153 places, 319/319 transitions.
Applied a total of 0 rules in 10 ms. Remains 153 /153 variables (removed 0) and now considering 319/319 (removed 0) transitions.
[2026-05-23 06:21:31] [INFO ] Flow matrix only has 308 transitions (discarded 11 similar events)
[2026-05-23 06:21:31] [INFO ] Invariant cache hit.
[2026-05-23 06:21:32] [INFO ] Implicit Places using invariants in 75 ms returned []
[2026-05-23 06:21:32] [INFO ] Flow matrix only has 308 transitions (discarded 11 similar events)
[2026-05-23 06:21:32] [INFO ] Invariant cache hit.
[2026-05-23 06:21:32] [INFO ] State equation strengthened by 8 read => feed constraints.
[2026-05-23 06:21:32] [INFO ] Implicit Places using invariants and state equation in 120 ms returned [114]
Discarding 1 places :
Implicit Place search using SMT with State Equation took 213 ms to find 1 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 1 : 152/153 places, 319/319 transitions.
Applied a total of 0 rules in 10 ms. Remains 152 /152 variables (removed 0) and now considering 319/319 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 2 iterations and 233 ms. Remains : 152/153 places, 319/319 transitions.
RANDOM walk for 40000 steps (3241 resets) in 159 ms. (250 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (441 resets) in 161 ms. (246 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 2180189 steps, run timeout after 3001 ms. (steps per millisecond=726 ) properties seen :0 out of 1
Probabilistic random walk after 2180189 steps, saw 412983 distinct states, run finished after 3001 ms. (steps per millisecond=726 ) properties seen :0
[2026-05-23 06:21:35] [INFO ] Flow matrix only has 308 transitions (discarded 11 similar events)
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-13642002282691340544.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-12495993411507625776.kers'
[2026-05-23 06:21:35] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-13642002282691340544.kers, --Pflows, --basisKERS=/tmp/petrispot-output-12495993411507625776.kers]
Culled 0 columns in 0 ms.
// Phase 1: matrix 308 rows 152 cols 867 entries
Finished phase 1 with 151 SingleSign rule and 0 generalized
[2026-05-23 06:21:35] [INFO ] Computed 1 invariants in 2 ms
Computed 1 P flows in 2 ms.
Exported basis to /tmp/petrispot-output-12495993411507625776.kers
Total runtime 3 ms.
[2026-05-23 06:21:35] [INFO ] State equation strengthened by 8 read => feed constraints.
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/54 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 32/86 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/86 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 270/356 variables, 86/87 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/356 variables, 2/89 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/356 variables, 0/89 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 101/457 variables, 63/152 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/457 variables, 6/158 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/457 variables, 0/158 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 3/460 variables, 3/161 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/460 variables, 0/161 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 0/460 variables, 0/161 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 460/460 variables, and 161 constraints, problems are : Problem set: 0 solved, 1 unsolved in 198 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 152/152 constraints, ReadFeed: 8/8 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) 0/54 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 32/86 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/86 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 270/356 variables, 86/87 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/356 variables, 2/89 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/356 variables, 0/89 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 101/457 variables, 63/152 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/457 variables, 6/158 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/457 variables, 0/158 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 3/460 variables, 3/161 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/460 variables, 0/161 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 0/460 variables, 0/161 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 460/460 variables, and 161 constraints, problems are : Problem set: 0 solved, 1 unsolved in 211 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 152/152 constraints, ReadFeed: 8/8 constraints, PredecessorRefiner: 1/0 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 422ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 10 ms.
Support contains 54 out of 152 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 152/152 places, 319/319 transitions.
Applied a total of 0 rules in 5 ms. Remains 152 /152 variables (removed 0) and now considering 319/319 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 5 ms. Remains : 152/152 places, 319/319 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 152/152 places, 319/319 transitions.
Applied a total of 0 rules in 4 ms. Remains 152 /152 variables (removed 0) and now considering 319/319 (removed 0) transitions.
[2026-05-23 06:21:35] [INFO ] Flow matrix only has 308 transitions (discarded 11 similar events)
[2026-05-23 06:21:35] [INFO ] Invariant cache hit.
[2026-05-23 06:21:35] [INFO ] Implicit Places using invariants in 148 ms returned []
[2026-05-23 06:21:35] [INFO ] Flow matrix only has 308 transitions (discarded 11 similar events)
[2026-05-23 06:21:35] [INFO ] Invariant cache hit.
[2026-05-23 06:21:35] [INFO ] State equation strengthened by 8 read => feed constraints.
[2026-05-23 06:21:36] [INFO ] Implicit Places using invariants and state equation in 114 ms returned []
Implicit Place search using SMT with State Equation took 267 ms to find 0 implicit places.
[2026-05-23 06:21:36] [INFO ] Redundant transitions in 52 ms returned []
Running 317 sub problems to find dead transitions.
[2026-05-23 06:21:36] [INFO ] Flow matrix only has 308 transitions (discarded 11 similar events)
[2026-05-23 06:21:36] [INFO ] Invariant cache hit.
[2026-05-23 06:21:36] [INFO ] State equation strengthened by 8 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/150 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 317 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/150 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 317 unsolved
At refinement iteration 2 (OVERLAPS) 308/458 variables, 150/151 constraints. Problems are: Problem set: 0 solved, 317 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/458 variables, 8/159 constraints. Problems are: Problem set: 0 solved, 317 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/458 variables, 0/159 constraints. Problems are: Problem set: 0 solved, 317 unsolved
Problem TDEAD128 is UNSAT
Problem TDEAD129 is UNSAT
Problem TDEAD130 is UNSAT
Problem TDEAD131 is UNSAT
Problem TDEAD132 is UNSAT
Problem TDEAD133 is UNSAT
Problem TDEAD134 is UNSAT
Problem TDEAD135 is UNSAT
Problem TDEAD136 is UNSAT
Problem TDEAD137 is UNSAT
Problem TDEAD308 is UNSAT
Problem TDEAD309 is UNSAT
At refinement iteration 5 (OVERLAPS) 2/460 variables, 2/161 constraints. Problems are: Problem set: 12 solved, 305 unsolved
Problem TDEAD138 is UNSAT
Problem TDEAD139 is UNSAT
Problem TDEAD264 is UNSAT
Problem TDEAD265 is UNSAT
Problem TDEAD269 is UNSAT
Problem TDEAD270 is UNSAT
Problem TDEAD271 is UNSAT
Problem TDEAD272 is UNSAT
Problem TDEAD273 is UNSAT
Problem TDEAD274 is UNSAT
Problem TDEAD277 is UNSAT
Problem TDEAD278 is UNSAT
Problem TDEAD279 is UNSAT
Problem TDEAD280 is UNSAT
Problem TDEAD281 is UNSAT
Problem TDEAD282 is UNSAT
Problem TDEAD283 is UNSAT
Problem TDEAD313 is UNSAT
Problem TDEAD314 is UNSAT
At refinement iteration 6 (INCLUDED_ONLY) 0/460 variables, 1/162 constraints. Problems are: Problem set: 31 solved, 286 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/460 variables, 0/162 constraints. Problems are: Problem set: 31 solved, 286 unsolved
At refinement iteration 8 (OVERLAPS) 0/460 variables, 0/162 constraints. Problems are: Problem set: 31 solved, 286 unsolved
No progress, stopping.
After SMT solving in domain Real declared 460/460 variables, and 162 constraints, problems are : Problem set: 31 solved, 286 unsolved in 21442 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 152/152 constraints, ReadFeed: 8/8 constraints, PredecessorRefiner: 317/317 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 31 solved, 286 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/144 variables, 1/1 constraints. Problems are: Problem set: 31 solved, 286 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/144 variables, 0/1 constraints. Problems are: Problem set: 31 solved, 286 unsolved
At refinement iteration 2 (OVERLAPS) 307/451 variables, 144/145 constraints. Problems are: Problem set: 31 solved, 286 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/451 variables, 7/152 constraints. Problems are: Problem set: 31 solved, 286 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/451 variables, 132/284 constraints. Problems are: Problem set: 31 solved, 286 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/451 variables, 0/284 constraints. Problems are: Problem set: 31 solved, 286 unsolved
At refinement iteration 6 (OVERLAPS) 9/460 variables, 8/292 constraints. Problems are: Problem set: 31 solved, 286 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/460 variables, 1/293 constraints. Problems are: Problem set: 31 solved, 286 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/460 variables, 154/447 constraints. Problems are: Problem set: 31 solved, 286 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/460 variables, 1/448 constraints. Problems are: Problem set: 31 solved, 286 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/460 variables, 1/449 constraints. Problems are: Problem set: 31 solved, 286 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/460 variables, 0/449 constraints. Problems are: Problem set: 31 solved, 286 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 460/460 variables, and 449 constraints, problems are : Problem set: 31 solved, 286 unsolved in 30015 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 152/152 constraints, ReadFeed: 8/8 constraints, PredecessorRefiner: 286/317 constraints, Known Traps: 2/2 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 51573ms problems are : Problem set: 31 solved, 286 unsolved
Search for dead transitions found 31 dead transitions in 51580ms
Found 31 dead transitions using SMT.
Drop transitions (Dead Transitions using SMT only with invariants) removed 31 transitions
Dead transitions reduction (with SMT) removed 31 transitions
Starting structural reductions in REACHABILITY mode, iteration 1 : 152/152 places, 288/319 transitions.
Graph (complete) has 397 edges and 152 vertex of which 146 are kept as prefixes of interest. Removing 6 places using SCC suffix rule.0 ms
Discarding 6 places :
Also discarding 0 output transitions
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: -5
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 0 with 2 rules applied. Total rules applied 3 place count 145 transition count 293
Applied a total of 3 rules in 8 ms. Remains 145 /152 variables (removed 7) and now considering 293/288 (removed -5) transitions.
[2026-05-23 06:22:27] [INFO ] Flow matrix only has 286 transitions (discarded 7 similar events)
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-17373467882703316841.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-6638385632248022599.kers'
[2026-05-23 06:22:27] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-17373467882703316841.kers, --Pflows, --basisKERS=/tmp/petrispot-output-6638385632248022599.kers]
Culled 0 columns in 0 ms.
// Phase 1: matrix 286 rows 145 cols 797 entries
Finished phase 1 with 143 SingleSign rule and 0 generalized
[2026-05-23 06:22:27] [INFO ] Computed 2 invariants in 0 ms
Computed 2 P flows in 1 ms.
Exported basis to /tmp/petrispot-output-6638385632248022599.kers
Total runtime 1 ms.
[2026-05-23 06:22:27] [INFO ] Implicit Places using invariants in 49 ms returned []
[2026-05-23 06:22:27] [INFO ] Flow matrix only has 286 transitions (discarded 7 similar events)
[2026-05-23 06:22:27] [INFO ] Invariant cache hit.
[2026-05-23 06:22:27] [INFO ] State equation strengthened by 8 read => feed constraints.
[2026-05-23 06:22:27] [INFO ] Implicit Places using invariants and state equation in 117 ms returned []
Implicit Place search using SMT with State Equation took 169 ms to find 0 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 2 : 145/152 places, 293/319 transitions.
Finished structural reductions in REACHABILITY mode , in 2 iterations and 52114 ms. Remains : 145/152 places, 293/319 transitions.
RANDOM walk for 40000 steps (3279 resets) in 91 ms. (434 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (303 resets) in 111 ms. (357 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 2276476 steps, run timeout after 3001 ms. (steps per millisecond=758 ) properties seen :0 out of 1
Probabilistic random walk after 2276476 steps, saw 433146 distinct states, run finished after 3002 ms. (steps per millisecond=758 ) properties seen :0
[2026-05-23 06:22:30] [INFO ] Flow matrix only has 286 transitions (discarded 7 similar events)
[2026-05-23 06:22:30] [INFO ] Invariant cache hit.
[2026-05-23 06:22:30] [INFO ] State equation strengthened by 8 read => feed constraints.
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/54 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 53/107 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/107 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 275/382 variables, 107/109 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/382 variables, 3/112 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/382 variables, 0/112 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 49/431 variables, 38/150 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/431 variables, 5/155 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/431 variables, 0/155 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 0/431 variables, 0/155 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 431/431 variables, and 155 constraints, problems are : Problem set: 0 solved, 1 unsolved in 167 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, State Equation: 145/145 constraints, ReadFeed: 8/8 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) 0/54 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 53/107 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/107 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 275/382 variables, 107/109 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/382 variables, 3/112 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/382 variables, 0/112 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 49/431 variables, 38/150 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/431 variables, 5/155 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/431 variables, 0/155 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 0/431 variables, 0/155 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 431/431 variables, and 155 constraints, problems are : Problem set: 0 solved, 1 unsolved in 190 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, State Equation: 145/145 constraints, ReadFeed: 8/8 constraints, PredecessorRefiner: 1/0 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 363ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 8 ms.
Support contains 54 out of 145 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 145/145 places, 293/293 transitions.
Applied a total of 0 rules in 4 ms. Remains 145 /145 variables (removed 0) and now considering 293/293 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 4 ms. Remains : 145/145 places, 293/293 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 145/145 places, 293/293 transitions.
Applied a total of 0 rules in 4 ms. Remains 145 /145 variables (removed 0) and now considering 293/293 (removed 0) transitions.
[2026-05-23 06:22:31] [INFO ] Flow matrix only has 286 transitions (discarded 7 similar events)
[2026-05-23 06:22:31] [INFO ] Invariant cache hit.
[2026-05-23 06:22:31] [INFO ] Implicit Places using invariants in 66 ms returned []
[2026-05-23 06:22:31] [INFO ] Flow matrix only has 286 transitions (discarded 7 similar events)
[2026-05-23 06:22:31] [INFO ] Invariant cache hit.
[2026-05-23 06:22:31] [INFO ] State equation strengthened by 8 read => feed constraints.
[2026-05-23 06:22:31] [INFO ] Implicit Places using invariants and state equation in 113 ms returned []
Implicit Place search using SMT with State Equation took 183 ms to find 0 implicit places.
[2026-05-23 06:22:31] [INFO ] Redundant transitions in 17 ms returned []
Running 291 sub problems to find dead transitions.
[2026-05-23 06:22:31] [INFO ] Flow matrix only has 286 transitions (discarded 7 similar events)
[2026-05-23 06:22:31] [INFO ] Invariant cache hit.
[2026-05-23 06:22:31] [INFO ] State equation strengthened by 8 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/143 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 291 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/143 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 291 unsolved
At refinement iteration 2 (OVERLAPS) 1/144 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 291 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/144 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 291 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/144 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 291 unsolved
At refinement iteration 5 (OVERLAPS) 286/430 variables, 144/147 constraints. Problems are: Problem set: 0 solved, 291 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/430 variables, 8/155 constraints. Problems are: Problem set: 0 solved, 291 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/430 variables, 0/155 constraints. Problems are: Problem set: 0 solved, 291 unsolved
At refinement iteration 8 (OVERLAPS) 1/431 variables, 1/156 constraints. Problems are: Problem set: 0 solved, 291 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/431 variables, 0/156 constraints. Problems are: Problem set: 0 solved, 291 unsolved
At refinement iteration 10 (OVERLAPS) 0/431 variables, 0/156 constraints. Problems are: Problem set: 0 solved, 291 unsolved
No progress, stopping.
After SMT solving in domain Real declared 431/431 variables, and 156 constraints, problems are : Problem set: 0 solved, 291 unsolved in 20367 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, State Equation: 145/145 constraints, ReadFeed: 8/8 constraints, PredecessorRefiner: 291/291 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 291 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/143 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 291 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/143 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 291 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/143 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 291 unsolved
At refinement iteration 3 (OVERLAPS) 1/144 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 291 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/144 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 291 unsolved
At refinement iteration 5 (OVERLAPS) 286/430 variables, 144/147 constraints. Problems are: Problem set: 0 solved, 291 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/430 variables, 8/155 constraints. Problems are: Problem set: 0 solved, 291 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/430 variables, 132/287 constraints. Problems are: Problem set: 0 solved, 291 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/430 variables, 1/288 constraints. Problems are: Problem set: 0 solved, 291 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/430 variables, 0/288 constraints. Problems are: Problem set: 0 solved, 291 unsolved
At refinement iteration 10 (OVERLAPS) 1/431 variables, 1/289 constraints. Problems are: Problem set: 0 solved, 291 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/431 variables, 159/448 constraints. Problems are: Problem set: 0 solved, 291 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/431 variables, 0/448 constraints. Problems are: Problem set: 0 solved, 291 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 431/431 variables, and 448 constraints, problems are : Problem set: 0 solved, 291 unsolved in 30021 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, State Equation: 145/145 constraints, ReadFeed: 8/8 constraints, PredecessorRefiner: 291/291 constraints, Known Traps: 2/2 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 50445ms problems are : Problem set: 0 solved, 291 unsolved
Search for dead transitions found 0 dead transitions in 50448ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 50661 ms. Remains : 145/145 places, 293/293 transitions.
Attempting over-approximation, by ignoring read arcs.
Ensure Unique test removed 7 transitions
Reduce isomorphic transitions removed 7 transitions.
Iterating post reduction 0 with 7 rules applied. Total rules applied 7 place count 145 transition count 286
Discarding 3 places :
Symmetric choice reduction at 1 with 3 rule applications. Total rules 10 place count 142 transition count 283
Iterating global reduction 1 with 3 rules applied. Total rules applied 13 place count 142 transition count 283
Ensure Unique test removed 4 transitions
Reduce isomorphic transitions removed 4 transitions.
Iterating post reduction 1 with 4 rules applied. Total rules applied 17 place count 142 transition count 279
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 2 with 2 rules applied. Total rules applied 19 place count 141 transition count 278
Drop transitions (Redundant composition of simpler transitions.) removed 1 transitions
Redundant transition composition rules discarded 1 transitions
Iterating global reduction 2 with 1 rules applied. Total rules applied 20 place count 141 transition count 277
Applied a total of 20 rules in 30 ms. Remains 141 /145 variables (removed 4) and now considering 277/293 (removed 16) transitions.
Running SMT prover for 1 properties.
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-2131218312091176372.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-1620513947091967687.kers'
[2026-05-23 06:23:22] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-2131218312091176372.kers, --Pflows, --basisKERS=/tmp/petrispot-output-1620513947091967687.kers]
Culled 0 columns in 0 ms.
// Phase 1: matrix 277 rows 141 cols 771 entries
Finished phase 1 with 139 SingleSign rule and 0 generalized
[2026-05-23 06:23:22] [INFO ] Computed 2 invariants in 2 ms
Computed 2 P flows in 2 ms.
Exported basis to /tmp/petrispot-output-1620513947091967687.kers
Total runtime 3 ms.
[2026-05-23 06:23:22] [INFO ] After 30ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
[2026-05-23 06:23:22] [INFO ] [Nat]Absence check using 2 positive place invariants in 1 ms returned sat
[2026-05-23 06:23:22] [INFO ] After 68ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
TRAPS : Iteration 0
[2026-05-23 06:23:22] [INFO ] After 82ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
[2026-05-23 06:23:22] [INFO ] After 147ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
[2026-05-23 06:23:22] [INFO ] Flatten gal took : 15 ms
[2026-05-23 06:23:22] [INFO ] Flatten gal took : 53 ms
[2026-05-23 06:23:22] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality11198291063706896357.gal : 9 ms
[2026-05-23 06:23:22] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality2442776095353755095.prop : 0 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/ReachabilityCardinality11198291063706896357.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality2442776095353755095.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202604301425/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...329
Loading property file /tmp/ReachabilityCardinality2442776095353755095.prop.
SDD proceeding with computation,1 properties remain. new max is 4
SDD size :1 after 9
SDD proceeding with computation,1 properties remain. new max is 8
SDD size :9 after 13
SDD proceeding with computation,1 properties remain. new max is 16
SDD size :13 after 14
SDD proceeding with computation,1 properties remain. new max is 32
SDD size :14 after 20
SDD proceeding with computation,1 properties remain. new max is 64
SDD size :20 after 101
SDD proceeding with computation,1 properties remain. new max is 128
SDD size :101 after 246
SDD proceeding with computation,1 properties remain. new max is 256
SDD size :246 after 1304
SDD proceeding with computation,1 properties remain. new max is 512
SDD size :1304 after 10321
SDD proceeding with computation,1 properties remain. new max is 1024
SDD size :10321 after 156364
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
petri\_inst\_inst,2.44722e+06,0.742749,8704,2,965,14,18786,7,0,929,14528,0
Total reachable state count : 2447220

Verifying 1 reachability properties.
Reachability property CloudReconfiguration-PT-320-ReachabilityFireability-2024-02 is true.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
CloudReconfiguration-PT-320-ReachabilityFireability-2024-02,1,0.748377,8828,2,142,14,18786,7,0,970,14528,0
Over-approximation ignoring read arcs solved 0 properties in 1102 ms.
ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
[2026-05-23 06:23:23] [INFO ] Flatten gal took : 68 ms
[2026-05-23 06:23:23] [INFO ] Applying decomposition
[2026-05-23 06:23:23] [INFO ] Flatten gal took : 58 ms
Converted graph to binary with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202604301425/bin/convert-linux64' '-i' '/tmp/graph13714084627199212433.txt' '-o' '/tmp/graph13714084627199212433.bin' '-w' '/tmp/graph13714084627199212433.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202604301425/bin/louvain-linux64' '/tmp/graph13714084627199212433.bin' '-l' '-1' '-v' '-w' '/tmp/graph13714084627199212433.weights' '-q' '0' '-e' '0.001'
[2026-05-23 06:23:23] [INFO ] Decomposing Gal with order
[2026-05-23 06:23:23] [INFO ] Rewriting arrays to variables to allow decomposition.
[2026-05-23 06:23:24] [INFO ] Removed a total of 581 redundant transitions.
[2026-05-23 06:23:24] [INFO ] Flatten gal took : 184 ms
[2026-05-23 06:23:24] [INFO ] Fuse similar labels procedure discarded/fused a total of 25 labels/synchronizations in 32 ms.
[2026-05-23 06:23:24] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality12813374437430674034.gal : 30 ms
[2026-05-23 06:23:24] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality16570681457745970866.prop : 1 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202604301425/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality12813374437430674034.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality16570681457745970866.prop' '--nowitness'

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 ...309
Loading property file /tmp/ReachabilityCardinality16570681457745970866.prop.
SDD proceeding with computation,1 properties remain. new max is 4
SDD size :1 after 1
SDD proceeding with computation,1 properties remain. new max is 8
SDD size :1 after 1
SDD proceeding with computation,1 properties remain. new max is 16
SDD size :1 after 1
SDD proceeding with computation,1 properties remain. new max is 32
SDD size :1 after 1
SDD proceeding with computation,1 properties remain. new max is 64
SDD size :1 after 1
SDD proceeding with computation,1 properties remain. new max is 128
SDD size :1 after 11163
SDD proceeding with computation,1 properties remain. new max is 256
SDD size :11163 after 4.86733e+07
SDD proceeding with computation,1 properties remain. new max is 512
SDD size :4.86733e+07 after 4.86827e+07
SDD proceeding with computation,1 properties remain. new max is 1024
SDD size :4.86827e+07 after 4.87171e+07
SDD proceeding with computation,1 properties remain. new max is 2048
SDD size :4.87171e+07 after 9.59401e+07
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
petri\_inst\_inst\_mod\_flat,1.85475e+11,15.1921,419644,12680,238,617407,11411,3088,2.60543e+06,177,63669,0
Total reachable state count : 185474514402

Verifying 1 reachability properties.
Reachability property CloudReconfiguration-PT-320-ReachabilityFireability-2024-02 is true.
FORMULA CloudReconfiguration-PT-320-ReachabilityFireability-2024-02 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING USE_NUPN

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
CloudReconfiguration-PT-320-ReachabilityFireability-2024-02,1,15.3688,419644,897,25,617407,11411,3169,2.60543e+06,191,63669,21875
ITS tools runner thread asked to quit. Dying gracefully.
All properties solved without resorting to model-checking.
Total runtime 151472 ms.

BK_STOP 1779517419736

--------------------
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-320"
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-320, 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-177946967600263"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/CloudReconfiguration-PT-320.tgz
mv CloudReconfiguration-PT-320 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 ;