fond
Model Checking Contest 2026
16th edition, Hamburg, Germany, June 23, 2026
Execution of r130-smll-177955809000221
Last Updated
Jun 17, 2026

About the Execution of ITS-Tools for FireWire-PT-10

Execution Summary
Max Memory
Used (MB)
Time wait (ms) CPU Usage (ms) I/O Wait (ms) Computed Result Execution
Status
679.476 100959.00 141170.00 432.40 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 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.r130-smll-177955809000221.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 FireWire-PT-10, examination is UpperBounds
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r130-smll-177955809000221
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 620K
-rw-r--r-- 1 mcc users 7.8K Mar 7 05:16 CTLCardinality.txt
-rw-r--r-- 1 mcc users 87K Mar 7 05:16 CTLCardinality.xml
-rw-r--r-- 1 mcc users 6.4K Mar 7 05:16 CTLFireability.txt
-rw-r--r-- 1 mcc users 61K Mar 7 05:16 CTLFireability.xml
-rw-r--r-- 1 mcc users 3.8K Mar 15 10:06 LTLCardinality.txt
-rw-r--r-- 1 mcc users 28K Mar 15 10:06 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.3K Mar 15 10:07 LTLFireability.txt
-rw-r--r-- 1 mcc users 20K Mar 15 10:07 LTLFireability.xml
-rw-r--r-- 1 mcc users 12K Mar 7 05:16 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 127K Mar 7 05:16 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 13K Mar 7 05:16 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 116K Mar 7 05:16 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K Mar 15 10:07 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.6K Mar 15 10:07 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 equiv_col
-rw-r--r-- 1 mcc users 3 Mar 3 18:30 instance
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 iscolored
-rw-r--r-- 1 mcc users 101K 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 FireWire-PT-10-UpperBounds-00
FORMULA_NAME FireWire-PT-10-UpperBounds-01
FORMULA_NAME FireWire-PT-10-UpperBounds-02
FORMULA_NAME FireWire-PT-10-UpperBounds-03
FORMULA_NAME FireWire-PT-10-UpperBounds-04
FORMULA_NAME FireWire-PT-10-UpperBounds-05
FORMULA_NAME FireWire-PT-10-UpperBounds-06
FORMULA_NAME FireWire-PT-10-UpperBounds-07
FORMULA_NAME FireWire-PT-10-UpperBounds-08
FORMULA_NAME FireWire-PT-10-UpperBounds-09
FORMULA_NAME FireWire-PT-10-UpperBounds-10
FORMULA_NAME FireWire-PT-10-UpperBounds-11
FORMULA_NAME FireWire-PT-10-UpperBounds-12
FORMULA_NAME FireWire-PT-10-UpperBounds-13
FORMULA_NAME FireWire-PT-10-UpperBounds-14
FORMULA_NAME FireWire-PT-10-UpperBounds-15

=== Now, execution of the tool begins

BK_START 1779809614476

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=UpperBounds
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=FireWire-PT-10
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
UpperBounds PT
Running Version 202604301425
[2026-05-26 15:33:36] [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]
[2026-05-26 15:33:37] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-26 15:33:37] [INFO ] Load time of PNML (sax parser for PT used): 197 ms
[2026-05-26 15:33:37] [INFO ] Transformed 131 places.
[2026-05-26 15:33:37] [INFO ] Transformed 409 transitions.
[2026-05-26 15:33:37] [INFO ] Found NUPN structural information;
[2026-05-26 15:33:37] [INFO ] Parsed PT model containing 131 places and 409 transitions and 1529 arcs in 421 ms.
Parsed 16 properties from file /home/mcc/execution/UpperBounds.xml in 14 ms.
Ensure Unique test removed 56 transitions
Reduce redundant transitions removed 56 transitions.
Current structural bounds on expressions (Initiallly, because the net is safe) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
Current structural bounds on expressions (Before main loop) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-9877292887468443504.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-10488284510878671184.kers'
[2026-05-26 15:33:37] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-9877292887468443504.kers, --Pflows, --basisKERS=/tmp/petrispot-output-10488284510878671184.kers]
Normalized transition count is 320 out of 353 initially.
Culled 0 columns in 0 ms.
// Phase 1: matrix 320 rows 131 cols 1101 entries
Finished phase 1 with 123 SingleSign rule and 0 generalized
[2026-05-26 15:33:37] [INFO ] Computed 8 invariants in 3 ms
Computed 8 P flows in 4 ms.
Exported basis to /tmp/petrispot-output-10488284510878671184.kers
Total runtime 6 ms.
Current structural bounds on expressions (after invariants) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
RANDOM walk for 10000 steps (566 resets) in 106 ms. (93 steps per ms)
FORMULA FireWire-PT-10-UpperBounds-15 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA FireWire-PT-10-UpperBounds-14 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA FireWire-PT-10-UpperBounds-12 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA FireWire-PT-10-UpperBounds-07 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA FireWire-PT-10-UpperBounds-06 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA FireWire-PT-10-UpperBounds-02 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA FireWire-PT-10-UpperBounds-00 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA FireWire-PT-10-UpperBounds-08 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 80006 steps (1176 resets) in 326 ms. (244 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[1, 1, 1, 1, 1, 1, 1, 1]
[2026-05-26 15:33:38] [INFO ] Flow matrix only has 321 transitions (discarded 32 similar events)
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-13224696534909126459.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-12061846796169516627.kers'
[2026-05-26 15:33:38] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-13224696534909126459.kers, --Pflows, --basisKERS=/tmp/petrispot-output-12061846796169516627.kers]
Normalized transition count is 320 out of 321 initially.
Culled 0 columns in 0 ms.
// Phase 1: matrix 320 rows 131 cols 1101 entries
Finished phase 1 with 123 SingleSign rule and 0 generalized
[2026-05-26 15:33:38] [INFO ] Computed 8 invariants in 3 ms
Computed 8 P flows in 3 ms.
Exported basis to /tmp/petrispot-output-12061846796169516627.kers
Total runtime 4 ms.
[2026-05-26 15:33:38] [INFO ] [Real]Absence check using 8 positive place invariants in 16 ms returned sat
[2026-05-26 15:33:38] [INFO ] [Real]Absence check using state equation in 273 ms returned sat
[2026-05-26 15:33:38] [INFO ] State equation strengthened by 45 read => feed constraints.
[2026-05-26 15:33:38] [INFO ] [Real]Added 45 Read/Feed constraints in 42 ms returned sat
[2026-05-26 15:33:39] [INFO ] Solution in real domain found non-integer solution.
[2026-05-26 15:33:39] [INFO ] [Nat]Absence check using 8 positive place invariants in 13 ms returned sat
[2026-05-26 15:33:39] [INFO ] [Nat]Absence check using state equation in 212 ms returned sat
[2026-05-26 15:33:39] [INFO ] [Nat]Added 45 Read/Feed constraints in 28 ms returned sat
[2026-05-26 15:33:39] [INFO ] Computed and/alt/rep : 126/467/126 causal constraints (skipped 194 transitions) in 101 ms.
[2026-05-26 15:33:39] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 169 ms
[2026-05-26 15:33:39] [INFO ] Added : 13 causal constraints over 3 iterations in 538 ms. Result :sat
Minimization took 135 ms.
[2026-05-26 15:33:40] [INFO ] [Real]Absence check using 8 positive place invariants in 10 ms returned sat
[2026-05-26 15:33:40] [INFO ] [Real]Absence check using state equation in 177 ms returned sat
[2026-05-26 15:33:40] [INFO ] [Real]Added 45 Read/Feed constraints in 26 ms returned sat
[2026-05-26 15:33:40] [INFO ] Solution in real domain found non-integer solution.
[2026-05-26 15:33:40] [INFO ] [Nat]Absence check using 8 positive place invariants in 10 ms returned sat
[2026-05-26 15:33:40] [INFO ] [Nat]Absence check using state equation in 171 ms returned sat
[2026-05-26 15:33:40] [INFO ] [Nat]Added 45 Read/Feed constraints in 48 ms returned sat
[2026-05-26 15:33:40] [INFO ] Computed and/alt/rep : 126/467/126 causal constraints (skipped 194 transitions) in 72 ms.
[2026-05-26 15:33:41] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 323 ms
[2026-05-26 15:33:41] [INFO ] Added : 22 causal constraints over 6 iterations in 734 ms. Result :sat
Minimization took 131 ms.
[2026-05-26 15:33:41] [INFO ] [Real]Absence check using 8 positive place invariants in 6 ms returned sat
[2026-05-26 15:33:42] [INFO ] [Real]Absence check using state equation in 285 ms returned sat
[2026-05-26 15:33:42] [INFO ] [Real]Added 45 Read/Feed constraints in 13 ms returned sat
[2026-05-26 15:33:42] [INFO ] Solution in real domain found non-integer solution.
[2026-05-26 15:33:42] [INFO ] [Nat]Absence check using 8 positive place invariants in 10 ms returned sat
[2026-05-26 15:33:42] [INFO ] [Nat]Absence check using state equation in 167 ms returned sat
[2026-05-26 15:33:42] [INFO ] [Nat]Added 45 Read/Feed constraints in 21 ms returned sat
[2026-05-26 15:33:42] [INFO ] Computed and/alt/rep : 126/467/126 causal constraints (skipped 194 transitions) in 66 ms.
[2026-05-26 15:33:42] [INFO ] Added : 16 causal constraints over 5 iterations in 324 ms. Result :sat
Minimization took 131 ms.
[2026-05-26 15:33:42] [INFO ] [Real]Absence check using 8 positive place invariants in 9 ms returned sat
[2026-05-26 15:33:43] [INFO ] [Real]Absence check using state equation in 166 ms returned sat
[2026-05-26 15:33:43] [INFO ] [Real]Added 45 Read/Feed constraints in 45 ms returned sat
[2026-05-26 15:33:43] [INFO ] Solution in real domain found non-integer solution.
[2026-05-26 15:33:43] [INFO ] [Nat]Absence check using 8 positive place invariants in 11 ms returned sat
[2026-05-26 15:33:43] [INFO ] [Nat]Absence check using state equation in 174 ms returned sat
[2026-05-26 15:33:43] [INFO ] [Nat]Added 45 Read/Feed constraints in 44 ms returned sat
[2026-05-26 15:33:43] [INFO ] Computed and/alt/rep : 126/467/126 causal constraints (skipped 194 transitions) in 67 ms.
[2026-05-26 15:33:44] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 164 ms
[2026-05-26 15:33:44] [INFO ] Added : 23 causal constraints over 6 iterations in 537 ms. Result :sat
Minimization took 142 ms.
[2026-05-26 15:33:44] [INFO ] [Real]Absence check using 8 positive place invariants in 9 ms returned sat
[2026-05-26 15:33:44] [INFO ] [Real]Absence check using state equation in 167 ms returned sat
[2026-05-26 15:33:44] [INFO ] [Real]Added 45 Read/Feed constraints in 21 ms returned sat
[2026-05-26 15:33:44] [INFO ] Solution in real domain found non-integer solution.
[2026-05-26 15:33:44] [INFO ] [Nat]Absence check using 8 positive place invariants in 9 ms returned sat
[2026-05-26 15:33:44] [INFO ] [Nat]Absence check using state equation in 160 ms returned sat
[2026-05-26 15:33:44] [INFO ] [Nat]Added 45 Read/Feed constraints in 44 ms returned sat
[2026-05-26 15:33:44] [INFO ] Computed and/alt/rep : 126/467/126 causal constraints (skipped 194 transitions) in 59 ms.
[2026-05-26 15:33:45] [INFO ] Added : 19 causal constraints over 5 iterations in 336 ms. Result :sat
Minimization took 120 ms.
[2026-05-26 15:33:45] [INFO ] [Real]Absence check using 8 positive place invariants in 9 ms returned sat
[2026-05-26 15:33:45] [INFO ] [Real]Absence check using state equation in 156 ms returned sat
[2026-05-26 15:33:45] [INFO ] Solution in real domain found non-integer solution.
[2026-05-26 15:33:45] [INFO ] [Nat]Absence check using 8 positive place invariants in 9 ms returned sat
[2026-05-26 15:33:45] [INFO ] [Nat]Absence check using state equation in 155 ms returned sat
[2026-05-26 15:33:45] [INFO ] [Nat]Added 45 Read/Feed constraints in 54 ms returned sat
[2026-05-26 15:33:46] [INFO ] Computed and/alt/rep : 126/467/126 causal constraints (skipped 194 transitions) in 46 ms.
[2026-05-26 15:33:46] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 307 ms
[2026-05-26 15:33:46] [INFO ] Added : 34 causal constraints over 8 iterations in 750 ms. Result :sat
Minimization took 78 ms.
[2026-05-26 15:33:46] [INFO ] [Real]Absence check using 8 positive place invariants in 8 ms returned sat
[2026-05-26 15:33:47] [INFO ] [Real]Absence check using state equation in 140 ms returned sat
[2026-05-26 15:33:47] [INFO ] Solution in real domain found non-integer solution.
[2026-05-26 15:33:47] [INFO ] [Nat]Absence check using 8 positive place invariants in 7 ms returned sat
[2026-05-26 15:33:47] [INFO ] [Nat]Absence check using state equation in 140 ms returned sat
[2026-05-26 15:33:47] [INFO ] [Nat]Added 45 Read/Feed constraints in 22 ms returned sat
[2026-05-26 15:33:47] [INFO ] Computed and/alt/rep : 126/467/126 causal constraints (skipped 194 transitions) in 43 ms.
[2026-05-26 15:33:48] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 505 ms
[2026-05-26 15:33:48] [INFO ] Added : 27 causal constraints over 7 iterations in 827 ms. Result :sat
Minimization took 106 ms.
[2026-05-26 15:33:48] [INFO ] [Real]Absence check using 8 positive place invariants in 6 ms returned sat
[2026-05-26 15:33:48] [INFO ] [Real]Absence check using state equation in 133 ms returned sat
[2026-05-26 15:33:48] [INFO ] [Real]Added 45 Read/Feed constraints in 12 ms returned sat
[2026-05-26 15:33:48] [INFO ] Solution in real domain found non-integer solution.
[2026-05-26 15:33:48] [INFO ] [Nat]Absence check using 8 positive place invariants in 14 ms returned sat
[2026-05-26 15:33:48] [INFO ] [Nat]Absence check using state equation in 132 ms returned sat
[2026-05-26 15:33:48] [INFO ] [Nat]Added 45 Read/Feed constraints in 28 ms returned sat
[2026-05-26 15:33:48] [INFO ] Computed and/alt/rep : 126/467/126 causal constraints (skipped 194 transitions) in 47 ms.
[2026-05-26 15:33:48] [INFO ] Added : 7 causal constraints over 3 iterations in 158 ms. Result :sat
Minimization took 74 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[1, 1, 1, 1, 1, 1, 1, 1]
FORMULA FireWire-PT-10-UpperBounds-03 1 TECHNIQUES TOPOLOGICAL PARIKH_WALK
FORMULA FireWire-PT-10-UpperBounds-09 1 TECHNIQUES TOPOLOGICAL PARIKH_WALK
FORMULA FireWire-PT-10-UpperBounds-05 1 TECHNIQUES TOPOLOGICAL PARIKH_WALK
FORMULA FireWire-PT-10-UpperBounds-04 1 TECHNIQUES TOPOLOGICAL PARIKH_WALK
FORMULA FireWire-PT-10-UpperBounds-01 1 TECHNIQUES TOPOLOGICAL PARIKH_WALK
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0, 0, 0] Max Struct:[1, 1, 1]
Support contains 3 out of 131 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 131/131 places, 353/353 transitions.
Drop transitions (Empty/Sink Transition effects.) removed 3 transitions
Reduce isomorphic transitions removed 3 transitions.
Iterating post reduction 0 with 3 rules applied. Total rules applied 3 place count 131 transition count 350
Discarding 4 places :
Symmetric choice reduction at 1 with 4 rule applications. Total rules 7 place count 127 transition count 342
Iterating global reduction 1 with 4 rules applied. Total rules applied 11 place count 127 transition count 342
Ensure Unique test removed 3 transitions
Reduce isomorphic transitions removed 3 transitions.
Iterating post reduction 1 with 3 rules applied. Total rules applied 14 place count 127 transition count 339
Discarding 1 places :
Symmetric choice reduction at 2 with 1 rule applications. Total rules 15 place count 126 transition count 336
Iterating global reduction 2 with 1 rules applied. Total rules applied 16 place count 126 transition count 336
Discarding 1 places :
Symmetric choice reduction at 2 with 1 rule applications. Total rules 17 place count 125 transition count 334
Iterating global reduction 2 with 1 rules applied. Total rules applied 18 place count 125 transition count 334
Discarding 1 places :
Symmetric choice reduction at 2 with 1 rule applications. Total rules 19 place count 124 transition count 331
Iterating global reduction 2 with 1 rules applied. Total rules applied 20 place count 124 transition count 331
Discarding 1 places :
Symmetric choice reduction at 2 with 1 rule applications. Total rules 21 place count 123 transition count 329
Iterating global reduction 2 with 1 rules applied. Total rules applied 22 place count 123 transition count 329
Discarding 1 places :
Symmetric choice reduction at 2 with 1 rule applications. Total rules 23 place count 122 transition count 326
Iterating global reduction 2 with 1 rules applied. Total rules applied 24 place count 122 transition count 326
Discarding 1 places :
Symmetric choice reduction at 2 with 1 rule applications. Total rules 25 place count 121 transition count 324
Iterating global reduction 2 with 1 rules applied. Total rules applied 26 place count 121 transition count 324
Discarding 1 places :
Symmetric choice reduction at 2 with 1 rule applications. Total rules 27 place count 120 transition count 321
Iterating global reduction 2 with 1 rules applied. Total rules applied 28 place count 120 transition count 321
Discarding 1 places :
Symmetric choice reduction at 2 with 1 rule applications. Total rules 29 place count 119 transition count 319
Iterating global reduction 2 with 1 rules applied. Total rules applied 30 place count 119 transition count 319
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 2 with 2 rules applied. Total rules applied 32 place count 118 transition count 318
Performed 3 Post agglomeration using F-continuation condition.Transition count delta: -6
Deduced a syphon composed of 3 places in 0 ms
Reduce places removed 3 places and 0 transitions.
Iterating global reduction 2 with 6 rules applied. Total rules applied 38 place count 115 transition count 324
Drop transitions (Empty/Sink Transition effects.) removed 6 transitions
Reduce isomorphic transitions removed 6 transitions.
Iterating post reduction 2 with 6 rules applied. Total rules applied 44 place count 115 transition count 318
Drop transitions (Redundant composition of simpler transitions.) removed 9 transitions
Redundant transition composition rules discarded 9 transitions
Iterating global reduction 3 with 9 rules applied. Total rules applied 53 place count 115 transition count 309
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 3 with 1 rules applied. Total rules applied 54 place count 115 transition count 311
Reduce places removed 1 places and 0 transitions.
Drop transitions (Empty/Sink Transition effects.) removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 3 with 3 rules applied. Total rules applied 57 place count 114 transition count 309
Drop transitions (Redundant composition of simpler transitions.) removed 2 transitions
Redundant transition composition rules discarded 2 transitions
Iterating global reduction 4 with 2 rules applied. Total rules applied 59 place count 114 transition count 307
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 4 with 1 rules applied. Total rules applied 60 place count 113 transition count 306
Applied a total of 60 rules in 241 ms. Remains 113 /131 variables (removed 18) and now considering 306/353 (removed 47) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 255 ms. Remains : 113/131 places, 306/353 transitions.
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-2497413014477065362.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-11581405651986875041.kers'
[2026-05-26 15:33:49] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-2497413014477065362.kers, --Pflows, --basisKERS=/tmp/petrispot-output-11581405651986875041.kers]
Normalized transition count is 277 out of 306 initially.
Culling duplicate invariants (modulo rational): removing 2 columns.
Culled 2 columns in 0 ms.
// Phase 1: matrix 277 rows 111 cols 941 entries
Finished phase 1 with 105 SingleSign rule and 0 generalized
[2026-05-26 15:33:49] [INFO ] Computed 8 invariants in 1 ms
Computed 8 P flows in 2 ms.
Exported basis to /tmp/petrispot-output-11581405651986875041.kers
Total runtime 2 ms.
Current structural bounds on expressions (after invariants) : Max Seen:[0, 0, 0] Max Struct:[1, 1, 1]
RANDOM walk for 1000000 steps (58100 resets) in 2131 ms. (469 steps per ms)
FORMULA FireWire-PT-10-UpperBounds-13 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 2000002 steps (28206 resets) in 1165 ms. (1715 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0, 0] Max Struct:[1, 1]
[2026-05-26 15:33:53] [INFO ] Flow matrix only has 277 transitions (discarded 29 similar events)
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-8513121523778451330.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-14116247526140847495.kers'
[2026-05-26 15:33:53] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-8513121523778451330.kers, --Pflows, --basisKERS=/tmp/petrispot-output-14116247526140847495.kers]
Culling duplicate invariants (modulo rational): removing 2 columns.
Culled 2 columns in 0 ms.
// Phase 1: matrix 277 rows 111 cols 941 entries
Finished phase 1 with 105 SingleSign rule and 0 generalized
[2026-05-26 15:33:53] [INFO ] Computed 8 invariants in 1 ms
Computed 8 P flows in 1 ms.
Exported basis to /tmp/petrispot-output-14116247526140847495.kers
Total runtime 2 ms.
[2026-05-26 15:33:53] [INFO ] [Real]Absence check using 8 positive place invariants in 5 ms returned sat
[2026-05-26 15:33:53] [INFO ] [Real]Absence check using state equation in 94 ms returned sat
[2026-05-26 15:33:53] [INFO ] Solution in real domain found non-integer solution.
[2026-05-26 15:33:53] [INFO ] [Nat]Absence check using 8 positive place invariants in 6 ms returned sat
[2026-05-26 15:33:53] [INFO ] [Nat]Absence check using state equation in 135 ms returned sat
[2026-05-26 15:33:53] [INFO ] State equation strengthened by 41 read => feed constraints.
[2026-05-26 15:33:53] [INFO ] [Nat]Added 41 Read/Feed constraints in 30 ms returned sat
[2026-05-26 15:33:53] [INFO ] Computed and/alt/rep : 126/519/126 causal constraints (skipped 149 transitions) in 34 ms.
[2026-05-26 15:33:54] [INFO ] Trap strengthening (SAT) tested/added 4/3 trap constraints in 471 ms
[2026-05-26 15:33:54] [INFO ] Added : 53 causal constraints over 13 iterations in 988 ms. Result :sat
Minimization took 177 ms.
[2026-05-26 15:33:54] [INFO ] [Real]Absence check using 8 positive place invariants in 6 ms returned sat
[2026-05-26 15:33:54] [INFO ] [Real]Absence check using state equation in 140 ms returned sat
[2026-05-26 15:33:54] [INFO ] Solution in real domain found non-integer solution.
[2026-05-26 15:33:54] [INFO ] [Nat]Absence check using 8 positive place invariants in 7 ms returned sat
[2026-05-26 15:33:55] [INFO ] [Nat]Absence check using state equation in 136 ms returned sat
[2026-05-26 15:33:55] [INFO ] [Nat]Added 41 Read/Feed constraints in 35 ms returned sat
[2026-05-26 15:33:55] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 174 ms
[2026-05-26 15:33:55] [INFO ] Computed and/alt/rep : 126/519/126 causal constraints (skipped 149 transitions) in 35 ms.
[2026-05-26 15:33:55] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 128 ms
[2026-05-26 15:33:55] [INFO ] Added : 36 causal constraints over 8 iterations in 478 ms. Result :sat
Minimization took 158 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0, 0] Max Struct:[1, 1]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0, 0] Max Struct:[1, 1]
Support contains 2 out of 113 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 113/113 places, 306/306 transitions.
Applied a total of 0 rules in 26 ms. Remains 113 /113 variables (removed 0) and now considering 306/306 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 26 ms. Remains : 113/113 places, 306/306 transitions.
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-14318261114838969785.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-4581943231704897203.kers'
[2026-05-26 15:33:56] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-14318261114838969785.kers, --Pflows, --basisKERS=/tmp/petrispot-output-4581943231704897203.kers]
Normalized transition count is 277 out of 306 initially.
Culling duplicate invariants (modulo rational): removing 2 columns.
Culled 2 columns in 0 ms.
// Phase 1: matrix 277 rows 111 cols 941 entries
Finished phase 1 with 105 SingleSign rule and 0 generalized
[2026-05-26 15:33:56] [INFO ] Computed 8 invariants in 2 ms
Computed 8 P flows in 2 ms.
Exported basis to /tmp/petrispot-output-4581943231704897203.kers
Total runtime 3 ms.
Current structural bounds on expressions (after invariants) : Max Seen:[0, 0] Max Struct:[1, 1]
RANDOM walk for 1000000 steps (58304 resets) in 1722 ms. (580 steps per ms)
BEST_FIRST walk for 2000002 steps (28610 resets) in 1340 ms. (1491 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0, 0] Max Struct:[1, 1]
[2026-05-26 15:33:59] [INFO ] Flow matrix only has 277 transitions (discarded 29 similar events)
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-7858783807415199488.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-9507197178356614795.kers'
[2026-05-26 15:33:59] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-7858783807415199488.kers, --Pflows, --basisKERS=/tmp/petrispot-output-9507197178356614795.kers]
Culling duplicate invariants (modulo rational): removing 2 columns.
Culled 2 columns in 0 ms.
// Phase 1: matrix 277 rows 111 cols 941 entries
Finished phase 1 with 105 SingleSign rule and 0 generalized
[2026-05-26 15:33:59] [INFO ] Computed 8 invariants in 2 ms
Computed 8 P flows in 3 ms.
Exported basis to /tmp/petrispot-output-9507197178356614795.kers
Total runtime 3 ms.
[2026-05-26 15:33:59] [INFO ] [Real]Absence check using 8 positive place invariants in 6 ms returned sat
[2026-05-26 15:33:59] [INFO ] [Real]Absence check using state equation in 124 ms returned sat
[2026-05-26 15:33:59] [INFO ] Solution in real domain found non-integer solution.
[2026-05-26 15:33:59] [INFO ] [Nat]Absence check using 8 positive place invariants in 6 ms returned sat
[2026-05-26 15:33:59] [INFO ] [Nat]Absence check using state equation in 126 ms returned sat
[2026-05-26 15:33:59] [INFO ] State equation strengthened by 41 read => feed constraints.
[2026-05-26 15:33:59] [INFO ] [Nat]Added 41 Read/Feed constraints in 29 ms returned sat
[2026-05-26 15:33:59] [INFO ] Computed and/alt/rep : 126/519/126 causal constraints (skipped 149 transitions) in 35 ms.
[2026-05-26 15:34:00] [INFO ] Trap strengthening (SAT) tested/added 4/3 trap constraints in 451 ms
[2026-05-26 15:34:00] [INFO ] Added : 53 causal constraints over 13 iterations in 931 ms. Result :sat
Minimization took 175 ms.
[2026-05-26 15:34:00] [INFO ] [Real]Absence check using 8 positive place invariants in 6 ms returned sat
[2026-05-26 15:34:00] [INFO ] [Real]Absence check using state equation in 133 ms returned sat
[2026-05-26 15:34:00] [INFO ] Solution in real domain found non-integer solution.
[2026-05-26 15:34:00] [INFO ] [Nat]Absence check using 8 positive place invariants in 6 ms returned sat
[2026-05-26 15:34:01] [INFO ] [Nat]Absence check using state equation in 131 ms returned sat
[2026-05-26 15:34:01] [INFO ] [Nat]Added 41 Read/Feed constraints in 33 ms returned sat
[2026-05-26 15:34:01] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 168 ms
[2026-05-26 15:34:01] [INFO ] Computed and/alt/rep : 126/519/126 causal constraints (skipped 149 transitions) in 28 ms.
[2026-05-26 15:34:01] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 122 ms
[2026-05-26 15:34:01] [INFO ] Added : 36 causal constraints over 8 iterations in 466 ms. Result :sat
Minimization took 149 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0, 0] Max Struct:[1, 1]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0, 0] Max Struct:[1, 1]
Support contains 2 out of 113 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 113/113 places, 306/306 transitions.
Applied a total of 0 rules in 16 ms. Remains 113 /113 variables (removed 0) and now considering 306/306 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 16 ms. Remains : 113/113 places, 306/306 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 113/113 places, 306/306 transitions.
Applied a total of 0 rules in 14 ms. Remains 113 /113 variables (removed 0) and now considering 306/306 (removed 0) transitions.
[2026-05-26 15:34:01] [INFO ] Flow matrix only has 277 transitions (discarded 29 similar events)
[2026-05-26 15:34:01] [INFO ] Invariant cache hit.
[2026-05-26 15:34:02] [INFO ] Implicit Places using invariants in 176 ms returned []
[2026-05-26 15:34:02] [INFO ] Flow matrix only has 277 transitions (discarded 29 similar events)
[2026-05-26 15:34:02] [INFO ] Invariant cache hit.
[2026-05-26 15:34:02] [INFO ] State equation strengthened by 41 read => feed constraints.
[2026-05-26 15:34:02] [INFO ] Implicit Places using invariants and state equation in 482 ms returned [12, 36]
Discarding 2 places :
Implicit Place search using SMT with State Equation took 664 ms to find 2 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 1 : 111/113 places, 306/306 transitions.
Free-agglomeration rule (complex) applied 2 times.
Iterating global reduction 0 with 2 rules applied. Total rules applied 2 place count 111 transition count 304
Reduce places removed 2 places and 0 transitions.
Iterating post reduction 0 with 2 rules applied. Total rules applied 4 place count 109 transition count 304
Applied a total of 4 rules in 27 ms. Remains 109 /111 variables (removed 2) and now considering 304/306 (removed 2) transitions.
[2026-05-26 15:34:02] [INFO ] Flow matrix only has 275 transitions (discarded 29 similar events)
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-3304153618231006831.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-9052213440152564315.kers'
[2026-05-26 15:34:02] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-3304153618231006831.kers, --Pflows, --basisKERS=/tmp/petrispot-output-9052213440152564315.kers]
Culled 0 columns in 0 ms.
// Phase 1: matrix 275 rows 109 cols 939 entries
Finished phase 1 with 103 SingleSign rule and 0 generalized
[2026-05-26 15:34:02] [INFO ] Computed 6 invariants in 1 ms
Computed 6 P flows in 2 ms.
Exported basis to /tmp/petrispot-output-9052213440152564315.kers
Total runtime 3 ms.
[2026-05-26 15:34:02] [INFO ] Implicit Places using invariants in 168 ms returned []
[2026-05-26 15:34:02] [INFO ] Flow matrix only has 275 transitions (discarded 29 similar events)
[2026-05-26 15:34:02] [INFO ] Invariant cache hit.
[2026-05-26 15:34:03] [INFO ] State equation strengthened by 41 read => feed constraints.
[2026-05-26 15:34:03] [INFO ] Implicit Places using invariants and state equation in 379 ms returned []
Implicit Place search using SMT with State Equation took 549 ms to find 0 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 2 : 109/113 places, 304/306 transitions.
Finished structural reductions in REACHABILITY mode , in 2 iterations and 1262 ms. Remains : 109/113 places, 304/306 transitions.
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-1094477924069130385.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-1177310541767175351.kers'
[2026-05-26 15:34:03] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-1094477924069130385.kers, --Pflows, --basisKERS=/tmp/petrispot-output-1177310541767175351.kers]
Normalized transition count is 275 out of 304 initially.
Culled 0 columns in 0 ms.
// Phase 1: matrix 275 rows 109 cols 939 entries
Finished phase 1 with 103 SingleSign rule and 0 generalized
[2026-05-26 15:34:03] [INFO ] Computed 6 invariants in 1 ms
Computed 6 P flows in 1 ms.
Exported basis to /tmp/petrispot-output-1177310541767175351.kers
Total runtime 2 ms.
Current structural bounds on expressions (after invariants) : Max Seen:[0, 0] Max Struct:[1, 1]
RANDOM walk for 1000000 steps (58132 resets) in 1357 ms. (736 steps per ms)
BEST_FIRST walk for 2000001 steps (27709 resets) in 977 ms. (2044 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0, 0] Max Struct:[1, 1]
[2026-05-26 15:34:05] [INFO ] Flow matrix only has 275 transitions (discarded 29 similar events)
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-7401950325400466275.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-1236237627481601495.kers'
[2026-05-26 15:34:05] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-7401950325400466275.kers, --Pflows, --basisKERS=/tmp/petrispot-output-1236237627481601495.kers]
Culled 0 columns in 0 ms.
// Phase 1: matrix 275 rows 109 cols 939 entries
Finished phase 1 with 103 SingleSign rule and 0 generalized
[2026-05-26 15:34:05] [INFO ] Computed 6 invariants in 1 ms
Computed 6 P flows in 1 ms.
Exported basis to /tmp/petrispot-output-1236237627481601495.kers
Total runtime 1 ms.
[2026-05-26 15:34:05] [INFO ] [Real]Absence check using 6 positive place invariants in 4 ms returned sat
[2026-05-26 15:34:05] [INFO ] [Real]Absence check using state equation in 95 ms returned sat
[2026-05-26 15:34:05] [INFO ] State equation strengthened by 41 read => feed constraints.
[2026-05-26 15:34:05] [INFO ] [Real]Added 41 Read/Feed constraints in 25 ms returned sat
[2026-05-26 15:34:05] [INFO ] Solution in real domain found non-integer solution.
[2026-05-26 15:34:05] [INFO ] [Nat]Absence check using 6 positive place invariants in 6 ms returned sat
[2026-05-26 15:34:05] [INFO ] [Nat]Absence check using state equation in 139 ms returned sat
[2026-05-26 15:34:06] [INFO ] [Nat]Added 41 Read/Feed constraints in 54 ms returned sat
[2026-05-26 15:34:06] [INFO ] Computed and/alt/rep : 124/513/124 causal constraints (skipped 149 transitions) in 37 ms.
[2026-05-26 15:34:06] [INFO ] Trap strengthening (SAT) tested/added 4/3 trap constraints in 513 ms
[2026-05-26 15:34:06] [INFO ] Added : 51 causal constraints over 11 iterations in 913 ms. Result :sat
Minimization took 108 ms.
[2026-05-26 15:34:07] [INFO ] [Real]Absence check using 6 positive place invariants in 4 ms returned sat
[2026-05-26 15:34:07] [INFO ] [Real]Absence check using state equation in 88 ms returned sat
[2026-05-26 15:34:07] [INFO ] Solution in real domain found non-integer solution.
[2026-05-26 15:34:07] [INFO ] [Nat]Absence check using 6 positive place invariants in 5 ms returned sat
[2026-05-26 15:34:07] [INFO ] [Nat]Absence check using state equation in 133 ms returned sat
[2026-05-26 15:34:07] [INFO ] [Nat]Added 41 Read/Feed constraints in 35 ms returned sat
[2026-05-26 15:34:07] [INFO ] Computed and/alt/rep : 124/513/124 causal constraints (skipped 149 transitions) in 27 ms.
[2026-05-26 15:34:08] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 357 ms
[2026-05-26 15:34:08] [INFO ] Added : 61 causal constraints over 13 iterations in 845 ms. Result :sat
Minimization took 202 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0, 0] Max Struct:[1, 1]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0, 0] Max Struct:[1, 1]
Support contains 2 out of 109 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 109/109 places, 304/304 transitions.
Applied a total of 0 rules in 13 ms. Remains 109 /109 variables (removed 0) and now considering 304/304 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 13 ms. Remains : 109/109 places, 304/304 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 109/109 places, 304/304 transitions.
Applied a total of 0 rules in 12 ms. Remains 109 /109 variables (removed 0) and now considering 304/304 (removed 0) transitions.
[2026-05-26 15:34:08] [INFO ] Flow matrix only has 275 transitions (discarded 29 similar events)
[2026-05-26 15:34:08] [INFO ] Invariant cache hit.
[2026-05-26 15:34:08] [INFO ] Implicit Places using invariants in 168 ms returned []
[2026-05-26 15:34:08] [INFO ] Flow matrix only has 275 transitions (discarded 29 similar events)
[2026-05-26 15:34:08] [INFO ] Invariant cache hit.
[2026-05-26 15:34:08] [INFO ] State equation strengthened by 41 read => feed constraints.
[2026-05-26 15:34:09] [INFO ] Implicit Places using invariants and state equation in 377 ms returned []
Implicit Place search using SMT with State Equation took 550 ms to find 0 implicit places.
[2026-05-26 15:34:09] [INFO ] Redundant transitions in 31 ms returned []
Running 302 sub problems to find dead transitions.
[2026-05-26 15:34:09] [INFO ] Flow matrix only has 275 transitions (discarded 29 similar events)
[2026-05-26 15:34:09] [INFO ] Invariant cache hit.
[2026-05-26 15:34:09] [INFO ] State equation strengthened by 41 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/108 variables, 6/6 constraints. Problems are: Problem set: 0 solved, 302 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/108 variables, 7/13 constraints. Problems are: Problem set: 0 solved, 302 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/108 variables, 1/14 constraints. Problems are: Problem set: 0 solved, 302 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/108 variables, 0/14 constraints. Problems are: Problem set: 0 solved, 302 unsolved
At refinement iteration 4 (OVERLAPS) 275/383 variables, 108/122 constraints. Problems are: Problem set: 0 solved, 302 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/383 variables, 41/163 constraints. Problems are: Problem set: 0 solved, 302 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/383 variables, 1/164 constraints. Problems are: Problem set: 0 solved, 302 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/383 variables, 0/164 constraints. Problems are: Problem set: 0 solved, 302 unsolved
At refinement iteration 8 (OVERLAPS) 1/384 variables, 1/165 constraints. Problems are: Problem set: 0 solved, 302 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/384 variables, 0/165 constraints. Problems are: Problem set: 0 solved, 302 unsolved
Error getting values : (error "Timeout of Z3 solver reached")
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 384/384 variables, and 165 constraints, problems are : Problem set: 0 solved, 302 unsolved in 30042 ms.
Refiners :[Positive P Invariants (semi-flows): 6/6 constraints, State Equation: 109/109 constraints, ReadFeed: 41/41 constraints, PredecessorRefiner: 302/302 constraints, Known Traps: 9/9 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 302 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/108 variables, 6/6 constraints. Problems are: Problem set: 0 solved, 302 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/108 variables, 9/15 constraints. Problems are: Problem set: 0 solved, 302 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/108 variables, 0/15 constraints. Problems are: Problem set: 0 solved, 302 unsolved
At refinement iteration 3 (OVERLAPS) 275/383 variables, 108/123 constraints. Problems are: Problem set: 0 solved, 302 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/383 variables, 41/164 constraints. Problems are: Problem set: 0 solved, 302 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/383 variables, 302/466 constraints. Problems are: Problem set: 0 solved, 302 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/383 variables, 1/467 constraints. Problems are: Problem set: 0 solved, 302 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/383 variables, 1/468 constraints. Problems are: Problem set: 0 solved, 302 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 383/384 variables, and 468 constraints, problems are : Problem set: 0 solved, 302 unsolved in 30021 ms.
Refiners :[Positive P Invariants (semi-flows): 6/6 constraints, State Equation: 108/109 constraints, ReadFeed: 41/41 constraints, PredecessorRefiner: 302/302 constraints, Known Traps: 10/10 constraints, Known Traps Along Path: 1/1 constraints]
After SMT, in 60419ms problems are : Problem set: 0 solved, 302 unsolved
Search for dead transitions found 0 dead transitions in 60442ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 61091 ms. Remains : 109/109 places, 304/304 transitions.
RANDOM walk for 40000 steps (2301 resets) in 2023 ms. (19 steps per ms) remains 4/4 properties
BEST_FIRST walk for 40003 steps (571 resets) in 546 ms. (73 steps per ms) remains 4/4 properties
BEST_FIRST walk for 40003 steps (630 resets) in 236 ms. (168 steps per ms) remains 4/4 properties
BEST_FIRST walk for 40001 steps (529 resets) in 335 ms. (119 steps per ms) remains 4/4 properties
[2026-05-26 15:35:10] [INFO ] Flatten gal took : 387 ms
BEST_FIRST walk for 40003 steps (530 resets) in 163 ms. (243 steps per ms) remains 4/4 properties
[2026-05-26 15:35:10] [INFO ] Flatten gal took : 107 ms
[2026-05-26 15:35:11] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality9570682923942234381.gal : 49 ms
[2026-05-26 15:35:11] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality6435864462241802677.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/ReachabilityCardinality9570682923942234381.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality6435864462241802677.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 ...328
Loading property file /tmp/ReachabilityCardinality6435864462241802677.prop.
SDD proceeding with computation,4 properties remain. new max is 4
SDD size :1 after 5
SDD proceeding with computation,4 properties remain. new max is 8
SDD size :5 after 12
SDD proceeding with computation,4 properties remain. new max is 16
SDD size :12 after 13
SDD proceeding with computation,4 properties remain. new max is 32
SDD size :13 after 21
SDD proceeding with computation,4 properties remain. new max is 64
SDD size :21 after 43
SDD proceeding with computation,4 properties remain. new max is 128
SDD size :43 after 111
SDD proceeding with computation,4 properties remain. new max is 256
SDD size :111 after 268
SDD proceeding with computation,4 properties remain. new max is 512
SDD size :268 after 2038
SDD proceeding with computation,4 properties remain. new max is 1024
SDD size :2038 after 4799
SDD proceeding with computation,4 properties remain. new max is 2048
SDD size :4799 after 26702
Invariant property MIN1 does not hold.
Reachability property MAX1 is true.
Invariant property MIN0 does not hold.
Reachability property MAX0 is true.
Found states matching all0 target predicate
Will report total states built up to this point. Computation was interrupted after 2049 fixpoint passes
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,3.10948e+06,1.21816,31468,2,1966,18,77448,6,0,743,95790,0
Total reachable state count : 3109475

Verifying 4 reachability properties.
Reachability property MAX0 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
MAX0,6395,1.2194,31468,2,548,18,77448,7,0,746,95790,0
Invariant property MIN0 does not hold.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
MIN0,6395,1.22017,31468,2,548,18,77448,8,0,747,95790,0
Reachability property MAX1 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
MAX1,8750,1.22066,31468,2,580,18,77448,9,0,749,95790,0
Invariant property MIN1 does not hold.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
MIN1,8750,1.22117,31468,2,580,18,77448,10,0,750,95790,0
Interrupted probabilistic random walk after 591152 steps, run timeout after 3001 ms. (steps per millisecond=196 ) properties seen :0 out of 4
Probabilistic random walk after 591152 steps, saw 127618 distinct states, run finished after 3013 ms. (steps per millisecond=196 ) properties seen :0
FORMULA FireWire-PT-10-UpperBounds-10 1 TECHNIQUES REACHABILITY_MAX
FORMULA FireWire-PT-10-UpperBounds-11 1 TECHNIQUES REACHABILITY_MAX
Current structural bounds on expressions (after reachability check) : Max Seen:[] Max Struct:[]
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-5853668866624478096.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-3522349528583921551.kers'
[2026-05-26 15:35:13] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-5853668866624478096.kers, --Pflows, --basisKERS=/tmp/petrispot-output-3522349528583921551.kers]
Normalized transition count is 275 out of 304 initially.
Culled 0 columns in 0 ms.
// Phase 1: matrix 275 rows 109 cols 939 entries
Finished phase 1 with 103 SingleSign rule and 0 generalized
[2026-05-26 15:35:13] [INFO ] Computed 6 invariants in 1 ms
Computed 6 P flows in 2 ms.
Exported basis to /tmp/petrispot-output-3522349528583921551.kers
Total runtime 2 ms.
Current structural bounds on expressions (after invariants) : Max Seen:[] Max Struct:[]
RANDOM walk for 1000000 steps (57637 resets) in 1395 ms. (716 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 98409 ms.

BK_STOP 1779809715435

--------------------
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
++ 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 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="FireWire-PT-10"
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 FireWire-PT-10, 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 r130-smll-177955809000221"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/FireWire-PT-10.tgz
mv FireWire-PT-10 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 ;