MCC'2026- Execution of r098-tall-177955695800813

About the Execution of ITS-Tools for DNAwalker-PT-09ringLR

Execution Summary
Max Memory Used (MB)	Time wait (ms)	CPU Usage (ms)	I/O Wait (ms)	Computed Result	Execution Status
515.388	184966.00	206850.00	539.10	2 2 2 2 2 2 1 2 1 2 2 2 2 2 1 2	normal

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.r098-tall-177955695800813.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 DNAwalker-PT-09ringLR, examination is UpperBounds
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r098-tall-177955695800813
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 596K
-rw-r--r-- 1 mcc users 6.9K Mar 6 15:58 CTLCardinality.txt
-rw-r--r-- 1 mcc users 77K Mar 6 15:58 CTLCardinality.xml
-rw-r--r-- 1 mcc users 4.3K Mar 6 15:58 CTLFireability.txt
-rw-r--r-- 1 mcc users 31K Mar 6 15:58 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Mar 3 18:30 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 3.3K Mar 15 09:33 LTLCardinality.txt
-rw-r--r-- 1 mcc users 25K Mar 15 09:33 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.3K Mar 15 09:34 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K Mar 15 09:34 LTLFireability.xml
-rw-r--r-- 1 mcc users 14K Mar 6 15:58 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 154K Mar 6 15:58 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 10K Mar 6 15:58 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 86K Mar 6 15:58 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K Mar 15 09:34 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K Mar 15 09:34 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 equiv_col
-rw-r--r-- 1 mcc users 9 Mar 3 18:30 instance
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 iscolored
-rw-r--r-- 1 mcc users 112K 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 positive values
NUM_VECTOR

echo here is the order used to build the result vector(from xml file)
FORMULA_NAME DNAwalker-PT-09ringLR-UpperBounds-00
FORMULA_NAME DNAwalker-PT-09ringLR-UpperBounds-01
FORMULA_NAME DNAwalker-PT-09ringLR-UpperBounds-02
FORMULA_NAME DNAwalker-PT-09ringLR-UpperBounds-03
FORMULA_NAME DNAwalker-PT-09ringLR-UpperBounds-04
FORMULA_NAME DNAwalker-PT-09ringLR-UpperBounds-05
FORMULA_NAME DNAwalker-PT-09ringLR-UpperBounds-06
FORMULA_NAME DNAwalker-PT-09ringLR-UpperBounds-07
FORMULA_NAME DNAwalker-PT-09ringLR-UpperBounds-08
FORMULA_NAME DNAwalker-PT-09ringLR-UpperBounds-09
FORMULA_NAME DNAwalker-PT-09ringLR-UpperBounds-10
FORMULA_NAME DNAwalker-PT-09ringLR-UpperBounds-11
FORMULA_NAME DNAwalker-PT-09ringLR-UpperBounds-12
FORMULA_NAME DNAwalker-PT-09ringLR-UpperBounds-13
FORMULA_NAME DNAwalker-PT-09ringLR-UpperBounds-14
FORMULA_NAME DNAwalker-PT-09ringLR-UpperBounds-15

=== Now, execution of the tool begins

BK_START 1779667459205

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=UpperBounds
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=DNAwalker-PT-09ringLR
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
UpperBounds PT
Running Version 202604301425
[2026-05-25 00:04:20] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, UpperBounds, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2026-05-25 00:04:20] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-25 00:04:20] [INFO ] Load time of PNML (sax parser for PT used): 77 ms
[2026-05-25 00:04:20] [INFO ] Transformed 27 places.
[2026-05-25 00:04:20] [INFO ] Transformed 260 transitions.
[2026-05-25 00:04:20] [INFO ] Parsed PT model containing 27 places and 260 transitions and 760 arcs in 166 ms.
Parsed 16 properties from file /home/mcc/execution/UpperBounds.xml in 6 ms.
Current structural bounds on expressions (Initially) : Max Seen:[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 2, 1, 0] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (Before main loop) : Max Seen:[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 2, 1, 0] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-14757371889774797009.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-9583252244784353289.kers'
[2026-05-25 00:04:20] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-14757371889774797009.kers, --Pflows, --basisKERS=/tmp/petrispot-output-9583252244784353289.kers]
Normalized transition count is 258 out of 260 initially.
Culled 0 columns in 0 ms.
// Phase 1: matrix 258 rows 27 cols 510 entries
Finished phase 1 with 27 SingleSign rule and 0 generalized
[2026-05-25 00:04:20] [INFO ] Computed 0 invariants in 1 ms
Computed 0 P flows in 2 ms.
Exported basis to /tmp/petrispot-output-9583252244784353289.kers
Total runtime 2 ms.
Current structural bounds on expressions (after invariants) : Max Seen:[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 2, 1, 0] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
RANDOM walk for 10000 steps (812 resets) in 61 ms. (161 steps per ms)
BEST_FIRST walk for 160016 steps (1064 resets) in 179 ms. (888 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[2, 2, 2, 2, 2, 2, 1, 2, 1, 2, 2, 2, 2, 2, 1, 2] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2026-05-25 00:04:20] [INFO ] Flow matrix only has 259 transitions (discarded 1 similar events)
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-9433507271629734217.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-16462023167555644560.kers'
[2026-05-25 00:04:20] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-9433507271629734217.kers, --Pflows, --basisKERS=/tmp/petrispot-output-16462023167555644560.kers]
Normalized transition count is 258 out of 259 initially.
Culled 0 columns in 0 ms.
// Phase 1: matrix 258 rows 27 cols 510 entries
Finished phase 1 with 27 SingleSign rule and 0 generalized
[2026-05-25 00:04:20] [INFO ] Computed 0 invariants in 0 ms
Computed 0 P flows in 5 ms.
Exported basis to /tmp/petrispot-output-16462023167555644560.kers
Total runtime 6 ms.
[2026-05-25 00:04:21] [INFO ] [Real]Absence check using state equation in 99 ms returned sat
[2026-05-25 00:04:21] [INFO ] Solution in real domain found non-integer solution.
[2026-05-25 00:04:21] [INFO ] [Nat]Absence check using state equation in 576 ms returned unknown
[2026-05-25 00:04:21] [INFO ] [Real]Absence check using state equation in 47 ms returned sat
[2026-05-25 00:04:21] [INFO ] Solution in real domain found non-integer solution.
[2026-05-25 00:04:22] [INFO ] [Nat]Absence check using state equation in 538 ms returned unknown
[2026-05-25 00:04:22] [INFO ] [Real]Absence check using state equation in 42 ms returned sat
[2026-05-25 00:04:22] [INFO ] Solution in real domain found non-integer solution.
[2026-05-25 00:04:23] [INFO ] [Nat]Absence check using state equation in 534 ms returned unknown
[2026-05-25 00:04:23] [INFO ] [Real]Absence check using state equation in 41 ms returned sat
[2026-05-25 00:04:23] [INFO ] Solution in real domain found non-integer solution.
[2026-05-25 00:04:23] [INFO ] [Nat]Absence check using state equation in 536 ms returned unknown
[2026-05-25 00:04:23] [INFO ] [Real]Absence check using state equation in 42 ms returned sat
[2026-05-25 00:04:23] [INFO ] Solution in real domain found non-integer solution.
[2026-05-25 00:04:24] [INFO ] [Nat]Absence check using state equation in 545 ms returned unknown
[2026-05-25 00:04:24] [INFO ] [Real]Absence check using state equation in 44 ms returned sat
[2026-05-25 00:04:24] [INFO ] Solution in real domain found non-integer solution.
[2026-05-25 00:04:24] [INFO ] [Nat]Absence check using state equation in 535 ms returned unknown
[2026-05-25 00:04:25] [INFO ] [Real]Absence check using state equation in 26 ms returned unsat
[2026-05-25 00:04:25] [INFO ] [Real]Absence check using state equation in 36 ms returned sat
[2026-05-25 00:04:25] [INFO ] Solution in real domain found non-integer solution.
[2026-05-25 00:04:25] [INFO ] [Nat]Absence check using state equation in 532 ms returned unknown
[2026-05-25 00:04:25] [INFO ] [Real]Absence check using state equation in 31 ms returned unsat
[2026-05-25 00:04:25] [INFO ] [Real]Absence check using state equation in 35 ms returned sat
[2026-05-25 00:04:25] [INFO ] Solution in real domain found non-integer solution.
[2026-05-25 00:04:26] [INFO ] [Nat]Absence check using state equation in 536 ms returned unknown
[2026-05-25 00:04:26] [INFO ] [Real]Absence check using state equation in 40 ms returned sat
[2026-05-25 00:04:26] [INFO ] Solution in real domain found non-integer solution.
[2026-05-25 00:04:26] [INFO ] [Nat]Absence check using state equation in 541 ms returned unknown
[2026-05-25 00:04:27] [INFO ] [Real]Absence check using state equation in 37 ms returned sat
[2026-05-25 00:04:27] [INFO ] Solution in real domain found non-integer solution.
[2026-05-25 00:04:27] [INFO ] [Nat]Absence check using state equation in 540 ms returned unknown
[2026-05-25 00:04:27] [INFO ] [Real]Absence check using state equation in 40 ms returned sat
[2026-05-25 00:04:27] [INFO ] Solution in real domain found non-integer solution.
[2026-05-25 00:04:28] [INFO ] [Nat]Absence check using state equation in 539 ms returned unknown
[2026-05-25 00:04:28] [INFO ] [Real]Absence check using state equation in 35 ms returned sat
[2026-05-25 00:04:28] [INFO ] Solution in real domain found non-integer solution.
[2026-05-25 00:04:28] [INFO ] [Nat]Absence check using state equation in 534 ms returned unknown
[2026-05-25 00:04:28] [INFO ] [Real]Absence check using state equation in 33 ms returned unsat
[2026-05-25 00:04:28] [INFO ] [Real]Absence check using state equation in 32 ms returned sat
[2026-05-25 00:04:29] [INFO ] Solution in real domain found non-integer solution.
[2026-05-25 00:04:29] [INFO ] [Nat]Absence check using state equation in 536 ms returned unknown
Current structural bounds on expressions (after SMT) : Max Seen:[2, 2, 2, 2, 2, 2, 1, 2, 1, 2, 2, 2, 2, 2, 1, 2] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, 1, +inf, 1, +inf, +inf, +inf, +inf, +inf, 1, +inf]
FORMULA DNAwalker-PT-09ringLR-UpperBounds-14 1 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA DNAwalker-PT-09ringLR-UpperBounds-08 1 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA DNAwalker-PT-09ringLR-UpperBounds-06 1 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
Support contains 13 out of 27 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 27/27 places, 260/260 transitions.
Drop transitions (Empty/Sink Transition effects.) removed 8 transitions
Reduce isomorphic transitions removed 8 transitions.
Iterating post reduction 0 with 8 rules applied. Total rules applied 8 place count 27 transition count 252
Reduce places removed 2 places and 2 transitions.
Iterating global reduction 1 with 2 rules applied. Total rules applied 10 place count 25 transition count 250
Applied a total of 10 rules in 48 ms. Remains 25 /27 variables (removed 2) and now considering 250/260 (removed 10) transitions.
Running 230 sub problems to find dead transitions.
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-16444206089499829477.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-9753819342133475912.kers'
[2026-05-25 00:04:29] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-16444206089499829477.kers, --Pflows, --basisKERS=/tmp/petrispot-output-9753819342133475912.kers]
Culled 0 columns in 0 ms.
// Phase 1: matrix 250 rows 25 cols 500 entries
Finished phase 1 with 25 SingleSign rule and 0 generalized
[2026-05-25 00:04:29] [INFO ] Computed 0 invariants in 0 ms
Computed 0 P flows in 0 ms.
Exported basis to /tmp/petrispot-output-9753819342133475912.kers
Total runtime 0 ms.
[2026-05-25 00:04:29] [INFO ] State equation strengthened by 40 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/21 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 230 unsolved
At refinement iteration 1 (OVERLAPS) 250/271 variables, 21/21 constraints. Problems are: Problem set: 0 solved, 230 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/271 variables, 40/61 constraints. Problems are: Problem set: 0 solved, 230 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/271 variables, 0/61 constraints. Problems are: Problem set: 0 solved, 230 unsolved
At refinement iteration 4 (OVERLAPS) 4/275 variables, 4/65 constraints. Problems are: Problem set: 0 solved, 230 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/275 variables, 0/65 constraints. Problems are: Problem set: 0 solved, 230 unsolved
At refinement iteration 6 (OVERLAPS) 0/275 variables, 0/65 constraints. Problems are: Problem set: 0 solved, 230 unsolved
No progress, stopping.
After SMT solving in domain Real declared 275/275 variables, and 65 constraints, problems are : Problem set: 0 solved, 230 unsolved in 17256 ms.
Refiners :[State Equation: 25/25 constraints, ReadFeed: 40/40 constraints, PredecessorRefiner: 230/230 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 230 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/21 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 230 unsolved
At refinement iteration 1 (OVERLAPS) 250/271 variables, 21/21 constraints. Problems are: Problem set: 0 solved, 230 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/271 variables, 40/61 constraints. Problems are: Problem set: 0 solved, 230 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/271 variables, 230/291 constraints. Problems are: Problem set: 0 solved, 230 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/271 variables, 0/291 constraints. Problems are: Problem set: 0 solved, 230 unsolved
At refinement iteration 5 (OVERLAPS) 4/275 variables, 4/295 constraints. Problems are: Problem set: 0 solved, 230 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 275/275 variables, and 295 constraints, problems are : Problem set: 0 solved, 230 unsolved in 20023 ms.
Refiners :[State Equation: 25/25 constraints, ReadFeed: 40/40 constraints, PredecessorRefiner: 230/230 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 37482ms problems are : Problem set: 0 solved, 230 unsolved
Search for dead transitions found 0 dead transitions in 37494ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 37576 ms. Remains : 25/27 places, 250/260 transitions.
findPositiveTsemiflow completed in 36 ms - Net is bounded UNSAT
[2026-05-25 00:05:07] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (90380 resets) in 3146 ms. (317 steps per ms)
BEST_FIRST walk for 13000013 steps (133867 resets) in 7489 ms. (1735 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2026-05-25 00:05:17] [INFO ] Invariant cache hit.
[2026-05-25 00:05:17] [INFO ] [Real]Absence check using state equation in 38 ms returned sat
[2026-05-25 00:05:17] [INFO ] Solution in real domain found non-integer solution.
[2026-05-25 00:05:26] [INFO ] [Nat]Absence check using state equation in 9043 ms returned unknown
[2026-05-25 00:05:27] [INFO ] [Real]Absence check using state equation in 64 ms returned sat
[2026-05-25 00:05:27] [INFO ] Solution in real domain found non-integer solution.
[2026-05-25 00:05:36] [INFO ] [Nat]Absence check using state equation in 9046 ms returned unknown
[2026-05-25 00:05:36] [INFO ] [Real]Absence check using state equation in 28 ms returned sat
[2026-05-25 00:05:36] [INFO ] Solution in real domain found non-integer solution.
[2026-05-25 00:05:45] [INFO ] [Nat]Absence check using state equation in 9066 ms returned unknown
[2026-05-25 00:05:45] [INFO ] [Real]Absence check using state equation in 34 ms returned sat
[2026-05-25 00:05:45] [INFO ] Solution in real domain found non-integer solution.
[2026-05-25 00:05:54] [INFO ] [Nat]Absence check using state equation in 9038 ms returned unknown
[2026-05-25 00:05:54] [INFO ] [Real]Absence check using state equation in 82 ms returned sat
[2026-05-25 00:05:54] [INFO ] Solution in real domain found non-integer solution.
[2026-05-25 00:06:03] [INFO ] [Nat]Absence check using state equation in 9036 ms returned unknown
[2026-05-25 00:06:03] [INFO ] [Real]Absence check using state equation in 38 ms returned sat
[2026-05-25 00:06:03] [INFO ] Solution in real domain found non-integer solution.
[2026-05-25 00:06:12] [INFO ] [Nat]Absence check using state equation in 9038 ms returned unknown
[2026-05-25 00:06:12] [INFO ] [Real]Absence check using state equation in 37 ms returned sat
[2026-05-25 00:06:12] [INFO ] Solution in real domain found non-integer solution.
[2026-05-25 00:06:22] [INFO ] [Nat]Absence check using state equation in 9034 ms returned unknown
[2026-05-25 00:06:22] [INFO ] [Real]Absence check using state equation in 32 ms returned sat
[2026-05-25 00:06:22] [INFO ] Solution in real domain found non-integer solution.
[2026-05-25 00:06:31] [INFO ] [Nat]Absence check using state equation in 9036 ms returned unknown
[2026-05-25 00:06:31] [INFO ] [Real]Absence check using state equation in 36 ms returned sat
[2026-05-25 00:06:31] [INFO ] Solution in real domain found non-integer solution.
[2026-05-25 00:06:40] [INFO ] [Nat]Absence check using state equation in 9040 ms returned unknown
[2026-05-25 00:06:40] [INFO ] [Real]Absence check using state equation in 35 ms returned sat
[2026-05-25 00:06:40] [INFO ] Solution in real domain found non-integer solution.
[2026-05-25 00:06:49] [INFO ] [Nat]Absence check using state equation in 9035 ms returned unknown
[2026-05-25 00:06:49] [INFO ] [Real]Absence check using state equation in 37 ms returned sat
[2026-05-25 00:06:49] [INFO ] Solution in real domain found non-integer solution.
[2026-05-25 00:06:58] [INFO ] [Nat]Absence check using state equation in 9032 ms returned unknown
[2026-05-25 00:06:58] [INFO ] [Real]Absence check using state equation in 35 ms returned sat
[2026-05-25 00:06:58] [INFO ] Solution in real domain found non-integer solution.
[2026-05-25 00:07:07] [INFO ] [Nat]Absence check using state equation in 9030 ms returned unknown
[2026-05-25 00:07:07] [INFO ] [Real]Absence check using state equation in 36 ms returned sat
[2026-05-25 00:07:07] [INFO ] Solution in real domain found non-integer solution.
[2026-05-25 00:07:16] [INFO ] [Nat]Absence check using state equation in 9036 ms returned unknown
Current structural bounds on expressions (after SMT) : Max Seen:[2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
Support contains 13 out of 25 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 25/25 places, 250/250 transitions.
Applied a total of 0 rules in 12 ms. Remains 25 /25 variables (removed 0) and now considering 250/250 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 13 ms. Remains : 25/25 places, 250/250 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 25/25 places, 250/250 transitions.
Applied a total of 0 rules in 5 ms. Remains 25 /25 variables (removed 0) and now considering 250/250 (removed 0) transitions.
[2026-05-25 00:07:16] [INFO ] Invariant cache hit.
[2026-05-25 00:07:16] [INFO ] Implicit Places using invariants in 33 ms returned []
[2026-05-25 00:07:16] [INFO ] Invariant cache hit.
[2026-05-25 00:07:16] [INFO ] State equation strengthened by 40 read => feed constraints.
[2026-05-25 00:07:17] [INFO ] Implicit Places using invariants and state equation in 223 ms returned []
Implicit Place search using SMT with State Equation took 259 ms to find 0 implicit places.
[2026-05-25 00:07:17] [INFO ] Redundant transitions in 17 ms returned []
Skipped dead transition search.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 288 ms. Remains : 25/25 places, 250/250 transitions.
findPositiveTsemiflow completed in 12 ms - Net is bounded UNSAT
[2026-05-25 00:07:17] [INFO ] Flatten gal took : 81 ms
[2026-05-25 00:07:17] [INFO ] Flatten gal took : 20 ms
RANDOM walk for 40000 steps (3599 resets) in 1798 ms. (22 steps per ms) remains 13/13 properties
[2026-05-25 00:07:17] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality9797957407369911543.gal : 14 ms
BEST_FIRST walk for 40004 steps (1140 resets) in 154 ms. (258 steps per ms) remains 13/13 properties
[2026-05-25 00:07:17] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality13575651508768618482.prop : 4 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/ReachabilityCardinality9797957407369911543.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality13575651508768618482.prop' '--nowitness' '--gen-order' 'FOLLOW'
BEST_FIRST walk for 40004 steps (1140 resets) in 149 ms. (266 steps per ms) remains 13/13 properties
BEST_FIRST walk for 40003 steps (290 resets) in 98 ms. (404 steps per ms) remains 13/13 properties
BEST_FIRST walk for 40003 steps (290 resets) in 81 ms. (487 steps per ms) remains 13/13 properties

BEST_FIRST walk for 40003 steps (273 resets) in 103 ms. (384 steps per ms) remains 13/13 properties
its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202604301425/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...329
BEST_FIRST walk for 40003 steps (279 resets) in 89 ms. (444 steps per ms) remains 13/13 properties
Loading property file /tmp/ReachabilityCardinality13575651508768618482.prop.
SDD proceeding with computation,13 properties remain. new max is 4
SDD size :1 after 17
SDD proceeding with computation,13 properties remain. new max is 8
SDD size :17 after 29
SDD proceeding with computation,13 properties remain. new max is 16
SDD size :29 after 72
SDD proceeding with computation,13 properties remain. new max is 32
SDD size :72 after 156
SDD proceeding with computation,13 properties remain. new max is 64
SDD size :156 after 4717
SDD proceeding with computation,13 properties remain. new max is 128
SDD size :4717 after 11366
SDD proceeding with computation,13 properties remain. new max is 256
SDD size :11366 after 56811
BEST_FIRST walk for 40004 steps (277 resets) in 176 ms. (226 steps per ms) remains 13/13 properties
SDD proceeding with computation,13 properties remain. new max is 512
SDD size :56811 after 182164
BEST_FIRST walk for 40003 steps (293 resets) in 118 ms. (336 steps per ms) remains 13/13 properties
SDD proceeding with computation,13 properties remain. new max is 1024
SDD size :182164 after 541116
BEST_FIRST walk for 40004 steps (269 resets) in 118 ms. (336 steps per ms) remains 13/13 properties
BEST_FIRST walk for 40004 steps (277 resets) in 118 ms. (336 steps per ms) remains 13/13 properties
BEST_FIRST walk for 40004 steps (270 resets) in 99 ms. (400 steps per ms) remains 13/13 properties
SDD proceeding with computation,13 properties remain. new max is 2048
SDD size :541116 after 3.15557e+06
BEST_FIRST walk for 40004 steps (241 resets) in 79 ms. (500 steps per ms) remains 13/13 properties
BEST_FIRST walk for 40004 steps (277 resets) in 100 ms. (396 steps per ms) remains 13/13 properties
SDD proceeding with computation,13 properties remain. new max is 4096
SDD size :8.37868e+06 after 9.65347e+06
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,1.30775e+07,0.664761,21420,2,1983,17,76473,19,0,399,76835,0
Total reachable state count : 13077456

Verifying 13 reachability properties.
Invariant property MIN0 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
MIN0,0,0.66613,21556,1,0,17,76473,19,0,400,76835,0
Invariant property MIN1 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
MIN1,0,0.666384,21600,1,0,17,76473,19,0,400,76835,0
Invariant property MIN2 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
MIN2,0,0.666492,21600,1,0,17,76473,19,0,400,76835,0
Invariant property MIN3 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
MIN3,0,0.666641,21600,1,0,17,76473,19,0,400,76835,0
Invariant property MIN4 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
MIN4,0,0.666915,21600,1,0,17,76473,19,0,400,76835,0
Invariant property MIN5 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
MIN5,0,0.66703,21600,1,0,17,76473,19,0,400,76835,0
Invariant property MIN6 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
MIN6,0,0.667231,21600,1,0,17,76473,19,0,400,76835,0
Invariant property MIN7 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
MIN7,0,0.667849,21600,1,0,17,76473,19,0,400,76835,0
Invariant property MIN8 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
MIN8,0,0.668071,21600,1,0,17,76473,19,0,400,76835,0
Invariant property MIN9 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
MIN9,0,0.668175,21600,1,0,17,76473,19,0,400,76835,0
Invariant property MIN10 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
MIN10,0,0.668571,21600,1,0,17,76473,19,0,400,76835,0
Invariant property MIN11 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
MIN11,0,0.669085,21600,1,0,17,76473,19,0,400,76835,0
Invariant property MIN12 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
MIN12,0,0.669645,21600,1,0,17,76473,19,0,400,76835,0
Interrupted probabilistic random walk after 627717 steps, run timeout after 3001 ms. (steps per millisecond=209 ) properties seen :0 out of 13
Probabilistic random walk after 627717 steps, saw 117031 distinct states, run finished after 3005 ms. (steps per millisecond=208 ) properties seen :0
FORMULA DNAwalker-PT-09ringLR-UpperBounds-00 2 TECHNIQUES REACHABILITY_MIN
FORMULA DNAwalker-PT-09ringLR-UpperBounds-01 2 TECHNIQUES REACHABILITY_MIN
FORMULA DNAwalker-PT-09ringLR-UpperBounds-02 2 TECHNIQUES REACHABILITY_MIN
FORMULA DNAwalker-PT-09ringLR-UpperBounds-03 2 TECHNIQUES REACHABILITY_MIN
FORMULA DNAwalker-PT-09ringLR-UpperBounds-04 2 TECHNIQUES REACHABILITY_MIN
FORMULA DNAwalker-PT-09ringLR-UpperBounds-05 2 TECHNIQUES REACHABILITY_MIN
FORMULA DNAwalker-PT-09ringLR-UpperBounds-07 2 TECHNIQUES REACHABILITY_MIN
FORMULA DNAwalker-PT-09ringLR-UpperBounds-09 2 TECHNIQUES REACHABILITY_MIN
FORMULA DNAwalker-PT-09ringLR-UpperBounds-10 2 TECHNIQUES REACHABILITY_MIN
FORMULA DNAwalker-PT-09ringLR-UpperBounds-11 2 TECHNIQUES REACHABILITY_MIN
FORMULA DNAwalker-PT-09ringLR-UpperBounds-12 2 TECHNIQUES REACHABILITY_MIN
FORMULA DNAwalker-PT-09ringLR-UpperBounds-13 2 TECHNIQUES REACHABILITY_MIN
FORMULA DNAwalker-PT-09ringLR-UpperBounds-15 2 TECHNIQUES REACHABILITY_MIN
Current structural bounds on expressions (after reachability check) : Max Seen:[] Max Struct:[]
[2026-05-25 00:07:21] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[] Max Struct:[]
RANDOM walk for 1000000 steps (90549 resets) in 2692 ms. (371 steps per ms)
BEST_FIRST walk for 0 steps (0 resets) in 0 ms. (0 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[] Max Struct:[]
All properties solved without resorting to model-checking.
Total runtime 183724 ms.

BK_STOP 1779667644171

--------------------
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
+ [[ UpperBounds = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution UpperBounds -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
++ perl -pe 's/.*\.//g'
++ sed s/.jar//
++ 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 UpperBounds -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="DNAwalker-PT-09ringLR"
export BK_EXAMINATION="UpperBounds"
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 DNAwalker-PT-09ringLR, examination is UpperBounds"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r098-tall-177955695800813"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/DNAwalker-PT-09ringLR.tgz
mv DNAwalker-PT-09ringLR execution
cd execution
if [ "UpperBounds" = "ReachabilityDeadlock" ] || [ "UpperBounds" = "UpperBounds" ] || [ "UpperBounds" = "QuasiLiveness" ] || [ "UpperBounds" = "StableMarking" ] || [ "UpperBounds" = "Liveness" ] || [ "UpperBounds" = "OneSafe" ] || [ "UpperBounds" = "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 [ "UpperBounds" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "UpperBounds" != "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 "UpperBounds.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 '' UpperBounds.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "UpperBounds" = "ReachabilityDeadlock" ] || [ "UpperBounds" = "QuasiLiveness" ] || [ "UpperBounds" = "StableMarking" ] || [ "UpperBounds" = "Liveness" ] || [ "UpperBounds" = "OneSafe" ] ; then
echo "FORMULA_NAME UpperBounds"
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 ;