MCC'2026- Execution of r175-smll-177961111800021

About the Execution of 2025-gold for JoinFreeModules-PT-0010

Execution Summary
Max Memory Used (MB)	Time wait (ms)	CPU Usage (ms)	I/O Wait (ms)	Computed Result	Execution Status
523.636	85237.00	107943.00	355.70	12 10 11 10 10 12 12 12 11 10 12 13 11 13 13 10	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.r175-smll-177961111800021.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 gold2025
Input is JoinFreeModules-PT-0010, examination is UpperBounds
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r175-smll-177961111800021
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 472K
-rw-r--r-- 1 mcc users 6.4K Mar 7 16:36 CTLCardinality.txt
-rw-r--r-- 1 mcc users 69K Mar 7 16:36 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.9K Mar 7 16:36 CTLFireability.txt
-rw-r--r-- 1 mcc users 56K Mar 7 16:36 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Mar 3 18:30 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 3.6K Mar 15 11:03 LTLCardinality.txt
-rw-r--r-- 1 mcc users 25K Mar 15 11:03 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.3K Mar 15 11:03 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K Mar 15 11:03 LTLFireability.xml
-rw-r--r-- 1 mcc users 11K Mar 7 16:36 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 116K Mar 7 16:36 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 8.2K Mar 7 16:36 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 71K Mar 7 16:36 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K Mar 15 11:03 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K Mar 15 11:03 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 equiv_col
-rw-r--r-- 1 mcc users 5 Mar 3 18:30 instance
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 iscolored
-rw-r--r-- 1 mcc users 31K 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 JoinFreeModules-PT-0010-UpperBounds-00
FORMULA_NAME JoinFreeModules-PT-0010-UpperBounds-01
FORMULA_NAME JoinFreeModules-PT-0010-UpperBounds-02
FORMULA_NAME JoinFreeModules-PT-0010-UpperBounds-03
FORMULA_NAME JoinFreeModules-PT-0010-UpperBounds-04
FORMULA_NAME JoinFreeModules-PT-0010-UpperBounds-05
FORMULA_NAME JoinFreeModules-PT-0010-UpperBounds-06
FORMULA_NAME JoinFreeModules-PT-0010-UpperBounds-07
FORMULA_NAME JoinFreeModules-PT-0010-UpperBounds-08
FORMULA_NAME JoinFreeModules-PT-0010-UpperBounds-09
FORMULA_NAME JoinFreeModules-PT-0010-UpperBounds-10
FORMULA_NAME JoinFreeModules-PT-0010-UpperBounds-11
FORMULA_NAME JoinFreeModules-PT-0010-UpperBounds-12
FORMULA_NAME JoinFreeModules-PT-0010-UpperBounds-13
FORMULA_NAME JoinFreeModules-PT-0010-UpperBounds-14
FORMULA_NAME JoinFreeModules-PT-0010-UpperBounds-15

=== Now, execution of the tool begins

BK_START 1779735906631

Invoking MCC driver with
GOLD_TOOL=
BK_EXAMINATION=UpperBounds
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=JoinFreeModules-PT-0010
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
UpperBounds PT
Running Version 202505121319
[2026-05-25 19:05:08] [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 19:05:08] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-25 19:05:09] [INFO ] Load time of PNML (sax parser for PT used): 119 ms
[2026-05-25 19:05:09] [INFO ] Transformed 51 places.
[2026-05-25 19:05:09] [INFO ] Transformed 81 transitions.
[2026-05-25 19:05:09] [INFO ] Parsed PT model containing 51 places and 81 transitions and 232 arcs in 333 ms.
Parsed 16 properties from file /home/mcc/execution/UpperBounds.xml in 18 ms.
Reduce places removed 1 places and 0 transitions.
Current structural bounds on expressions (Initially) : Max Seen:[0, 10, 1, 10, 10, 0, 0, 0, 1, 10, 2, 0, 1, 0, 0, 10] 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:[0, 10, 1, 10, 10, 0, 0, 0, 1, 10, 2, 0, 1, 0, 0, 10] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
// Phase 1: matrix 81 rows 50 cols
[2026-05-25 19:05:09] [INFO ] Computed 10 invariants in 15 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0, 10, 1, 10, 10, 0, 0, 0, 1, 10, 2, 0, 1, 0, 0, 10] Max Struct:[13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13]
RANDOM walk for 10000 steps (2 resets) in 111 ms. (89 steps per ms)
FORMULA JoinFreeModules-PT-0010-UpperBounds-13 13 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 150015 steps (30 resets) in 341 ms. (438 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[9, 10, 11, 10, 10, 12, 10, 11, 11, 10, 11, 11, 11, 11, 10] Max Struct:[13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13]
[2026-05-25 19:05:09] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 19:05:10] [INFO ] [Real]Absence check using 10 positive place invariants in 11 ms returned sat
[2026-05-25 19:05:10] [INFO ] [Real]Absence check using state equation in 121 ms returned sat
[2026-05-25 19:05:10] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 19:05:10] [INFO ] [Nat]Absence check using 10 positive place invariants in 9 ms returned sat
[2026-05-25 19:05:10] [INFO ] [Nat]Absence check using state equation in 250 ms returned sat
[2026-05-25 19:05:10] [INFO ] State equation strengthened by 10 read => feed constraints.
[2026-05-25 19:05:10] [INFO ] [Nat]Added 10 Read/Feed constraints in 219 ms returned sat
[2026-05-25 19:05:11] [INFO ] Computed and/alt/rep : 60/150/60 causal constraints (skipped 0 transitions) in 21 ms.
[2026-05-25 19:05:11] [INFO ] Added : 34 causal constraints over 8 iterations in 200 ms. Result :sat
Minimization took 33 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 19:05:11] [INFO ] [Real]Absence check using 10 positive place invariants in 4 ms returned sat
[2026-05-25 19:05:11] [INFO ] [Real]Absence check using state equation in 40 ms returned sat
[2026-05-25 19:05:11] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 19:05:11] [INFO ] [Nat]Absence check using 10 positive place invariants in 7 ms returned sat
[2026-05-25 19:05:11] [INFO ] [Nat]Absence check using state equation in 66 ms returned sat
[2026-05-25 19:05:11] [INFO ] [Nat]Added 10 Read/Feed constraints in 146 ms returned sat
[2026-05-25 19:05:11] [INFO ] Computed and/alt/rep : 60/150/60 causal constraints (skipped 0 transitions) in 28 ms.
[2026-05-25 19:05:12] [INFO ] Added : 34 causal constraints over 9 iterations in 548 ms. Result :sat
Minimization took 53 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 19:05:12] [INFO ] [Real]Absence check using 10 positive place invariants in 8 ms returned sat
[2026-05-25 19:05:12] [INFO ] [Real]Absence check using state equation in 67 ms returned sat
[2026-05-25 19:05:12] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 19:05:12] [INFO ] [Nat]Absence check using 10 positive place invariants in 8 ms returned sat
[2026-05-25 19:05:12] [INFO ] [Nat]Absence check using state equation in 76 ms returned sat
[2026-05-25 19:05:12] [INFO ] [Nat]Added 10 Read/Feed constraints in 6 ms returned sat
[2026-05-25 19:05:12] [INFO ] Computed and/alt/rep : 60/150/60 causal constraints (skipped 0 transitions) in 15 ms.
[2026-05-25 19:05:12] [INFO ] Added : 32 causal constraints over 7 iterations in 201 ms. Result :sat
Minimization took 43 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 19:05:12] [INFO ] [Real]Absence check using 10 positive place invariants in 7 ms returned sat
[2026-05-25 19:05:12] [INFO ] [Real]Absence check using state equation in 56 ms returned sat
[2026-05-25 19:05:12] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 19:05:12] [INFO ] [Nat]Absence check using 10 positive place invariants in 6 ms returned sat
[2026-05-25 19:05:13] [INFO ] [Nat]Absence check using state equation in 77 ms returned sat
[2026-05-25 19:05:13] [INFO ] [Nat]Added 10 Read/Feed constraints in 226 ms returned sat
[2026-05-25 19:05:13] [INFO ] Computed and/alt/rep : 60/150/60 causal constraints (skipped 0 transitions) in 12 ms.
[2026-05-25 19:05:14] [INFO ] Added : 5 causal constraints over 1 iterations in 958 ms. Result :sat
Minimization took 21 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 19:05:14] [INFO ] [Real]Absence check using 10 positive place invariants in 4 ms returned sat
[2026-05-25 19:05:14] [INFO ] [Real]Absence check using state equation in 50 ms returned sat
[2026-05-25 19:05:14] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 19:05:14] [INFO ] [Nat]Absence check using 10 positive place invariants in 4 ms returned sat
[2026-05-25 19:05:14] [INFO ] [Nat]Absence check using state equation in 43 ms returned sat
[2026-05-25 19:05:14] [INFO ] [Nat]Added 10 Read/Feed constraints in 127 ms returned sat
[2026-05-25 19:05:14] [INFO ] Computed and/alt/rep : 60/150/60 causal constraints (skipped 0 transitions) in 10 ms.
[2026-05-25 19:05:14] [INFO ] Added : 19 causal constraints over 5 iterations in 136 ms. Result :sat
Minimization took 21 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 19:05:14] [INFO ] [Real]Absence check using 10 positive place invariants in 6 ms returned sat
[2026-05-25 19:05:14] [INFO ] [Real]Absence check using state equation in 56 ms returned sat
[2026-05-25 19:05:14] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 19:05:14] [INFO ] [Nat]Absence check using 10 positive place invariants in 6 ms returned sat
[2026-05-25 19:05:14] [INFO ] [Nat]Absence check using state equation in 93 ms returned sat
[2026-05-25 19:05:14] [INFO ] [Nat]Added 10 Read/Feed constraints in 4 ms returned sat
[2026-05-25 19:05:15] [INFO ] Computed and/alt/rep : 60/150/60 causal constraints (skipped 0 transitions) in 14 ms.
[2026-05-25 19:05:15] [INFO ] Added : 15 causal constraints over 3 iterations in 631 ms. Result :sat
Minimization took 26 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 19:05:15] [INFO ] [Real]Absence check using 10 positive place invariants in 6 ms returned sat
[2026-05-25 19:05:15] [INFO ] [Real]Absence check using state equation in 51 ms returned sat
[2026-05-25 19:05:15] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 19:05:15] [INFO ] [Nat]Absence check using 10 positive place invariants in 6 ms returned sat
[2026-05-25 19:05:15] [INFO ] [Nat]Absence check using state equation in 49 ms returned sat
[2026-05-25 19:05:15] [INFO ] [Nat]Added 10 Read/Feed constraints in 131 ms returned sat
[2026-05-25 19:05:16] [INFO ] Computed and/alt/rep : 60/150/60 causal constraints (skipped 0 transitions) in 14 ms.
[2026-05-25 19:05:16] [INFO ] Added : 17 causal constraints over 4 iterations in 79 ms. Result :sat
Minimization took 43 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 19:05:16] [INFO ] [Real]Absence check using 10 positive place invariants in 7 ms returned sat
[2026-05-25 19:05:16] [INFO ] [Real]Absence check using state equation in 53 ms returned sat
[2026-05-25 19:05:16] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 19:05:16] [INFO ] [Nat]Absence check using 10 positive place invariants in 5 ms returned sat
[2026-05-25 19:05:16] [INFO ] [Nat]Absence check using state equation in 49 ms returned sat
[2026-05-25 19:05:16] [INFO ] [Nat]Added 10 Read/Feed constraints in 4 ms returned sat
[2026-05-25 19:05:16] [INFO ] Computed and/alt/rep : 60/150/60 causal constraints (skipped 0 transitions) in 13 ms.
[2026-05-25 19:05:16] [INFO ] Added : 22 causal constraints over 6 iterations in 82 ms. Result :sat
Minimization took 26 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 19:05:16] [INFO ] [Real]Absence check using 10 positive place invariants in 5 ms returned sat
[2026-05-25 19:05:16] [INFO ] [Real]Absence check using state equation in 39 ms returned sat
[2026-05-25 19:05:16] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 19:05:16] [INFO ] [Nat]Absence check using 10 positive place invariants in 5 ms returned sat
[2026-05-25 19:05:16] [INFO ] [Nat]Absence check using state equation in 38 ms returned sat
[2026-05-25 19:05:16] [INFO ] [Nat]Added 10 Read/Feed constraints in 3 ms returned sat
[2026-05-25 19:05:16] [INFO ] Computed and/alt/rep : 60/150/60 causal constraints (skipped 0 transitions) in 12 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 19:05:16] [INFO ] Deduced a trap composed of 3 places in 46 ms of which 13 ms to minimize.
[2026-05-25 19:05:16] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 164 ms
[2026-05-25 19:05:16] [INFO ] Added : 47 causal constraints over 11 iterations in 314 ms. Result :sat
Minimization took 25 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 19:05:17] [INFO ] [Real]Absence check using 10 positive place invariants in 5 ms returned sat
[2026-05-25 19:05:17] [INFO ] [Real]Absence check using state equation in 45 ms returned sat
[2026-05-25 19:05:17] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 19:05:17] [INFO ] [Nat]Absence check using 10 positive place invariants in 5 ms returned sat
[2026-05-25 19:05:17] [INFO ] [Nat]Absence check using state equation in 57 ms returned sat
[2026-05-25 19:05:17] [INFO ] [Nat]Added 10 Read/Feed constraints in 173 ms returned sat
[2026-05-25 19:05:17] [INFO ] Computed and/alt/rep : 60/150/60 causal constraints (skipped 0 transitions) in 10 ms.
[2026-05-25 19:05:17] [INFO ] Added : 8 causal constraints over 2 iterations in 41 ms. Result :sat
Minimization took 29 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 19:05:17] [INFO ] [Real]Absence check using 10 positive place invariants in 5 ms returned sat
[2026-05-25 19:05:17] [INFO ] [Real]Absence check using state equation in 39 ms returned sat
[2026-05-25 19:05:17] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 19:05:17] [INFO ] [Nat]Absence check using 10 positive place invariants in 5 ms returned sat
[2026-05-25 19:05:17] [INFO ] [Nat]Absence check using state equation in 41 ms returned sat
[2026-05-25 19:05:17] [INFO ] [Nat]Added 10 Read/Feed constraints in 4 ms returned sat
[2026-05-25 19:05:17] [INFO ] Computed and/alt/rep : 60/150/60 causal constraints (skipped 0 transitions) in 10 ms.
[2026-05-25 19:05:17] [INFO ] Added : 35 causal constraints over 9 iterations in 107 ms. Result :sat
Minimization took 30 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 19:05:17] [INFO ] [Real]Absence check using 10 positive place invariants in 5 ms returned sat
[2026-05-25 19:05:17] [INFO ] [Real]Absence check using state equation in 45 ms returned sat
[2026-05-25 19:05:17] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 19:05:17] [INFO ] [Nat]Absence check using 10 positive place invariants in 4 ms returned sat
[2026-05-25 19:05:17] [INFO ] [Nat]Absence check using state equation in 98 ms returned sat
[2026-05-25 19:05:17] [INFO ] [Nat]Added 10 Read/Feed constraints in 3 ms returned sat
[2026-05-25 19:05:17] [INFO ] Computed and/alt/rep : 60/150/60 causal constraints (skipped 0 transitions) in 11 ms.
[2026-05-25 19:05:18] [INFO ] Added : 41 causal constraints over 9 iterations in 446 ms. Result :sat
Minimization took 32 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 19:05:18] [INFO ] [Real]Absence check using 10 positive place invariants in 5 ms returned sat
[2026-05-25 19:05:18] [INFO ] [Real]Absence check using state equation in 41 ms returned sat
[2026-05-25 19:05:18] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 19:05:18] [INFO ] [Nat]Absence check using 10 positive place invariants in 4 ms returned sat
[2026-05-25 19:05:18] [INFO ] [Nat]Absence check using state equation in 40 ms returned sat
[2026-05-25 19:05:18] [INFO ] [Nat]Added 10 Read/Feed constraints in 3 ms returned sat
[2026-05-25 19:05:18] [INFO ] Computed and/alt/rep : 60/150/60 causal constraints (skipped 0 transitions) in 12 ms.
[2026-05-25 19:05:18] [INFO ] Added : 33 causal constraints over 7 iterations in 180 ms. Result :sat
Minimization took 30 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 19:05:18] [INFO ] [Real]Absence check using 10 positive place invariants in 6 ms returned sat
[2026-05-25 19:05:18] [INFO ] [Real]Absence check using state equation in 45 ms returned sat
[2026-05-25 19:05:18] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 19:05:18] [INFO ] [Nat]Absence check using 10 positive place invariants in 6 ms returned sat
[2026-05-25 19:05:19] [INFO ] [Nat]Absence check using state equation in 49 ms returned sat
[2026-05-25 19:05:19] [INFO ] [Nat]Added 10 Read/Feed constraints in 93 ms returned sat
[2026-05-25 19:05:19] [INFO ] Computed and/alt/rep : 60/150/60 causal constraints (skipped 0 transitions) in 12 ms.
[2026-05-25 19:05:19] [INFO ] Added : 27 causal constraints over 6 iterations in 224 ms. Result :sat
Minimization took 31 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 19:05:19] [INFO ] [Real]Absence check using 10 positive place invariants in 6 ms returned sat
[2026-05-25 19:05:19] [INFO ] [Real]Absence check using state equation in 47 ms returned sat
[2026-05-25 19:05:19] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 19:05:19] [INFO ] [Nat]Absence check using 10 positive place invariants in 6 ms returned sat
[2026-05-25 19:05:19] [INFO ] [Nat]Absence check using state equation in 47 ms returned sat
[2026-05-25 19:05:19] [INFO ] [Nat]Added 10 Read/Feed constraints in 262 ms returned sat
[2026-05-25 19:05:19] [INFO ] Computed and/alt/rep : 60/150/60 causal constraints (skipped 0 transitions) in 11 ms.
[2026-05-25 19:05:20] [INFO ] Added : 21 causal constraints over 5 iterations in 210 ms. Result :sat
Minimization took 37 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[9, 10, 11, 10, 10, 12, 10, 11, 11, 10, 11, 11, 11, 11, 10] Max Struct:[13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13]
FORMULA JoinFreeModules-PT-0010-UpperBounds-14 13 TECHNIQUES TOPOLOGICAL PARIKH_WALK
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[10, 10, 11, 10, 10, 12, 10, 11, 11, 10, 12, 11, 11, 10] Max Struct:[13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13]
Support contains 14 out of 50 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 50/50 places, 81/81 transitions.
Graph (complete) has 120 edges and 50 vertex of which 40 are kept as prefixes of interest. Removing 10 places using SCC suffix rule.1 ms
Discarding 10 places :
Also discarding 16 output transitions
Drop transitions (Output transitions of discarded places.) removed 16 transitions
Drop transitions (Empty/Sink Transition effects.) removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 40 transition count 64
Applied a total of 2 rules in 26 ms. Remains 40 /50 variables (removed 10) and now considering 64/81 (removed 17) transitions.
Running 48 sub problems to find dead transitions.
// Phase 1: matrix 64 rows 40 cols
[2026-05-25 19:05:21] [INFO ] Computed 8 invariants in 4 ms
[2026-05-25 19:05:21] [INFO ] State equation strengthened by 8 read => feed constraints.
Starting Z3 with timeout 20.0 s and query timeout 2000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/32 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 48 unsolved
At refinement iteration 1 (OVERLAPS) 8/40 variables, 8/8 constraints. Problems are: Problem set: 0 solved, 48 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/40 variables, 0/8 constraints. Problems are: Problem set: 0 solved, 48 unsolved
At refinement iteration 3 (OVERLAPS) 64/104 variables, 40/48 constraints. Problems are: Problem set: 0 solved, 48 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/104 variables, 8/56 constraints. Problems are: Problem set: 0 solved, 48 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/104 variables, 0/56 constraints. Problems are: Problem set: 0 solved, 48 unsolved
At refinement iteration 6 (OVERLAPS) 0/104 variables, 0/56 constraints. Problems are: Problem set: 0 solved, 48 unsolved
No progress, stopping.
After SMT solving in domain Real declared 104/104 variables, and 56 constraints, problems are : Problem set: 0 solved, 48 unsolved in 1502 ms.
Refiners :[Positive P Invariants (semi-flows): 8/8 constraints, State Equation: 40/40 constraints, ReadFeed: 8/8 constraints, PredecessorRefiner: 48/48 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 48 unsolved
Starting Z3 with timeout 20.0 s and query timeout 2000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/32 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 48 unsolved
At refinement iteration 1 (OVERLAPS) 8/40 variables, 8/8 constraints. Problems are: Problem set: 0 solved, 48 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/40 variables, 0/8 constraints. Problems are: Problem set: 0 solved, 48 unsolved
At refinement iteration 3 (OVERLAPS) 64/104 variables, 40/48 constraints. Problems are: Problem set: 0 solved, 48 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/104 variables, 8/56 constraints. Problems are: Problem set: 0 solved, 48 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/104 variables, 48/104 constraints. Problems are: Problem set: 0 solved, 48 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 19:05:31] [INFO ] Deduced a trap composed of 3 places in 28 ms of which 2 ms to minimize.
At refinement iteration 6 (INCLUDED_ONLY) 0/104 variables, 1/105 constraints. Problems are: Problem set: 0 solved, 48 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/104 variables, 0/105 constraints. Problems are: Problem set: 0 solved, 48 unsolved
At refinement iteration 8 (OVERLAPS) 0/104 variables, 0/105 constraints. Problems are: Problem set: 0 solved, 48 unsolved
No progress, stopping.
After SMT solving in domain Int declared 104/104 variables, and 105 constraints, problems are : Problem set: 0 solved, 48 unsolved in 14523 ms.
Refiners :[Positive P Invariants (semi-flows): 8/8 constraints, State Equation: 40/40 constraints, ReadFeed: 8/8 constraints, PredecessorRefiner: 48/48 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 16073ms problems are : Problem set: 0 solved, 48 unsolved
Search for dead transitions found 0 dead transitions in 16083ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 16122 ms. Remains : 40/50 places, 64/81 transitions.
[2026-05-25 19:05:37] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[10, 10, 11, 10, 10, 12, 10, 11, 11, 10, 12, 11, 11, 10] Max Struct:[13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13]
RANDOM walk for 1000000 steps (2 resets) in 2664 ms. (375 steps per ms)
FORMULA JoinFreeModules-PT-0010-UpperBounds-11 13 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 13000013 steps (26 resets) in 11382 ms. (1142 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[12, 10, 11, 10, 10, 12, 12, 12, 11, 10, 12, 11, 10] Max Struct:[13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13]
[2026-05-25 19:05:51] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 19:05:51] [INFO ] [Real]Absence check using 8 positive place invariants in 3 ms returned sat
[2026-05-25 19:05:51] [INFO ] [Real]Absence check using state equation in 23 ms returned sat
[2026-05-25 19:05:51] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 19:05:51] [INFO ] [Nat]Absence check using 8 positive place invariants in 2 ms returned sat
[2026-05-25 19:05:51] [INFO ] [Nat]Absence check using state equation in 27 ms returned sat
[2026-05-25 19:05:51] [INFO ] State equation strengthened by 8 read => feed constraints.
[2026-05-25 19:05:51] [INFO ] [Nat]Added 8 Read/Feed constraints in 3 ms returned sat
[2026-05-25 19:05:51] [INFO ] Computed and/alt/rep : 48/120/48 causal constraints (skipped 0 transitions) in 6 ms.
[2026-05-25 19:05:51] [INFO ] Added : 23 causal constraints over 5 iterations in 48 ms. Result :sat
Minimization took 27 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 19:05:51] [INFO ] [Real]Absence check using 8 positive place invariants in 3 ms returned sat
[2026-05-25 19:05:51] [INFO ] [Real]Absence check using state equation in 22 ms returned sat
[2026-05-25 19:05:51] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 19:05:51] [INFO ] [Nat]Absence check using 8 positive place invariants in 3 ms returned sat
[2026-05-25 19:05:51] [INFO ] [Nat]Absence check using state equation in 23 ms returned sat
[2026-05-25 19:05:51] [INFO ] [Nat]Added 8 Read/Feed constraints in 46 ms returned sat
[2026-05-25 19:05:51] [INFO ] Computed and/alt/rep : 48/120/48 causal constraints (skipped 0 transitions) in 4 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 19:05:51] [INFO ] Deduced a trap composed of 4 places in 31 ms of which 3 ms to minimize.
[2026-05-25 19:05:51] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 45 ms
[2026-05-25 19:05:51] [INFO ] Added : 40 causal constraints over 10 iterations in 128 ms. Result :sat
Minimization took 65 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 19:05:51] [INFO ] [Real]Absence check using 8 positive place invariants in 5 ms returned sat
[2026-05-25 19:05:51] [INFO ] [Real]Absence check using state equation in 36 ms returned sat
[2026-05-25 19:05:51] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 19:05:51] [INFO ] [Nat]Absence check using 8 positive place invariants in 4 ms returned sat
[2026-05-25 19:05:52] [INFO ] [Nat]Absence check using state equation in 36 ms returned sat
[2026-05-25 19:05:52] [INFO ] [Nat]Added 8 Read/Feed constraints in 5 ms returned sat
[2026-05-25 19:05:52] [INFO ] Computed and/alt/rep : 48/120/48 causal constraints (skipped 0 transitions) in 8 ms.
[2026-05-25 19:05:52] [INFO ] Added : 38 causal constraints over 11 iterations in 130 ms. Result :sat
Minimization took 42 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 19:05:52] [INFO ] [Real]Absence check using 8 positive place invariants in 5 ms returned sat
[2026-05-25 19:05:52] [INFO ] [Real]Absence check using state equation in 36 ms returned sat
[2026-05-25 19:05:52] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 19:05:52] [INFO ] [Nat]Absence check using 8 positive place invariants in 4 ms returned sat
[2026-05-25 19:05:52] [INFO ] [Nat]Absence check using state equation in 37 ms returned sat
[2026-05-25 19:05:52] [INFO ] [Nat]Added 8 Read/Feed constraints in 99 ms returned sat
[2026-05-25 19:05:52] [INFO ] Computed and/alt/rep : 48/120/48 causal constraints (skipped 0 transitions) in 8 ms.
[2026-05-25 19:05:52] [INFO ] Added : 30 causal constraints over 8 iterations in 101 ms. Result :sat
Minimization took 43 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 19:05:52] [INFO ] [Real]Absence check using 8 positive place invariants in 4 ms returned sat
[2026-05-25 19:05:52] [INFO ] [Real]Absence check using state equation in 38 ms returned sat
[2026-05-25 19:05:52] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 19:05:52] [INFO ] [Nat]Absence check using 8 positive place invariants in 5 ms returned sat
[2026-05-25 19:05:52] [INFO ] [Nat]Absence check using state equation in 39 ms returned sat
[2026-05-25 19:05:53] [INFO ] [Nat]Added 8 Read/Feed constraints in 237 ms returned sat
[2026-05-25 19:05:53] [INFO ] Computed and/alt/rep : 48/120/48 causal constraints (skipped 0 transitions) in 9 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 19:05:53] [INFO ] Deduced a trap composed of 3 places in 29 ms of which 3 ms to minimize.
[2026-05-25 19:05:53] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 264 ms
[2026-05-25 19:05:53] [INFO ] Added : 27 causal constraints over 7 iterations in 356 ms. Result :sat
Minimization took 34 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 19:05:53] [INFO ] [Real]Absence check using 8 positive place invariants in 5 ms returned sat
[2026-05-25 19:05:53] [INFO ] [Real]Absence check using state equation in 38 ms returned sat
[2026-05-25 19:05:53] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 19:05:53] [INFO ] [Nat]Absence check using 8 positive place invariants in 5 ms returned sat
[2026-05-25 19:05:53] [INFO ] [Nat]Absence check using state equation in 174 ms returned sat
[2026-05-25 19:05:53] [INFO ] [Nat]Added 8 Read/Feed constraints in 4 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 19:05:53] [INFO ] Deduced a trap composed of 3 places in 29 ms of which 3 ms to minimize.
[2026-05-25 19:05:53] [INFO ] Trap strengthening procedure managed to obtain unsat after adding 1 trap constraints in 36 ms
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 19:05:53] [INFO ] [Real]Absence check using 8 positive place invariants in 5 ms returned sat
[2026-05-25 19:05:53] [INFO ] [Real]Absence check using state equation in 36 ms returned sat
[2026-05-25 19:05:53] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 19:05:53] [INFO ] [Nat]Absence check using 8 positive place invariants in 5 ms returned sat
[2026-05-25 19:05:53] [INFO ] [Nat]Absence check using state equation in 42 ms returned sat
[2026-05-25 19:05:53] [INFO ] [Nat]Added 8 Read/Feed constraints in 86 ms returned sat
[2026-05-25 19:05:54] [INFO ] Computed and/alt/rep : 48/120/48 causal constraints (skipped 0 transitions) in 7 ms.
[2026-05-25 19:05:54] [INFO ] Added : 30 causal constraints over 9 iterations in 102 ms. Result :sat
Minimization took 244 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 19:05:54] [INFO ] [Real]Absence check using 8 positive place invariants in 4 ms returned sat
[2026-05-25 19:05:54] [INFO ] [Real]Absence check using state equation in 45 ms returned sat
[2026-05-25 19:05:54] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 19:05:54] [INFO ] [Nat]Absence check using 8 positive place invariants in 4 ms returned sat
[2026-05-25 19:05:54] [INFO ] [Nat]Absence check using state equation in 71 ms returned sat
[2026-05-25 19:05:54] [INFO ] [Nat]Added 8 Read/Feed constraints in 5 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 19:05:54] [INFO ] Deduced a trap composed of 3 places in 27 ms of which 2 ms to minimize.
[2026-05-25 19:05:54] [INFO ] Trap strengthening procedure managed to obtain unsat after adding 1 trap constraints in 33 ms
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 19:05:54] [INFO ] [Real]Absence check using 8 positive place invariants in 5 ms returned sat
[2026-05-25 19:05:54] [INFO ] [Real]Absence check using state equation in 36 ms returned sat
[2026-05-25 19:05:54] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 19:05:54] [INFO ] [Nat]Absence check using 8 positive place invariants in 5 ms returned sat
[2026-05-25 19:05:54] [INFO ] [Nat]Absence check using state equation in 37 ms returned sat
[2026-05-25 19:05:54] [INFO ] [Nat]Added 8 Read/Feed constraints in 4 ms returned sat
[2026-05-25 19:05:54] [INFO ] Computed and/alt/rep : 48/120/48 causal constraints (skipped 0 transitions) in 8 ms.
[2026-05-25 19:05:54] [INFO ] Added : 30 causal constraints over 6 iterations in 79 ms. Result :sat
Minimization took 37 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 19:05:54] [INFO ] [Real]Absence check using 8 positive place invariants in 5 ms returned sat
[2026-05-25 19:05:54] [INFO ] [Real]Absence check using state equation in 36 ms returned sat
[2026-05-25 19:05:54] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 19:05:54] [INFO ] [Nat]Absence check using 8 positive place invariants in 5 ms returned sat
[2026-05-25 19:05:55] [INFO ] [Nat]Absence check using state equation in 41 ms returned sat
[2026-05-25 19:05:55] [INFO ] [Nat]Added 8 Read/Feed constraints in 270 ms returned sat
[2026-05-25 19:05:55] [INFO ] Computed and/alt/rep : 48/120/48 causal constraints (skipped 0 transitions) in 10 ms.
[2026-05-25 19:05:55] [INFO ] Added : 17 causal constraints over 5 iterations in 62 ms. Result :sat
Minimization took 29 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 19:05:55] [INFO ] [Real]Absence check using 8 positive place invariants in 5 ms returned sat
[2026-05-25 19:05:55] [INFO ] [Real]Absence check using state equation in 41 ms returned sat
[2026-05-25 19:05:55] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 19:05:55] [INFO ] [Nat]Absence check using 8 positive place invariants in 4 ms returned sat
[2026-05-25 19:05:55] [INFO ] [Nat]Absence check using state equation in 36 ms returned sat
[2026-05-25 19:05:55] [INFO ] [Nat]Added 8 Read/Feed constraints in 144 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 19:05:55] [INFO ] Deduced a trap composed of 3 places in 27 ms of which 2 ms to minimize.
[2026-05-25 19:05:55] [INFO ] Trap strengthening procedure managed to obtain unsat after adding 1 trap constraints in 34 ms
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 19:05:55] [INFO ] [Real]Absence check using 8 positive place invariants in 4 ms returned sat
[2026-05-25 19:05:55] [INFO ] [Real]Absence check using state equation in 48 ms returned sat
[2026-05-25 19:05:55] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 19:05:55] [INFO ] [Nat]Absence check using 8 positive place invariants in 4 ms returned sat
[2026-05-25 19:05:55] [INFO ] [Nat]Absence check using state equation in 35 ms returned sat
[2026-05-25 19:05:55] [INFO ] [Nat]Added 8 Read/Feed constraints in 4 ms returned sat
[2026-05-25 19:05:55] [INFO ] Computed and/alt/rep : 48/120/48 causal constraints (skipped 0 transitions) in 8 ms.
[2026-05-25 19:05:56] [INFO ] Added : 40 causal constraints over 11 iterations in 127 ms. Result :sat
Minimization took 32 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 19:05:56] [INFO ] [Real]Absence check using 8 positive place invariants in 4 ms returned sat
[2026-05-25 19:05:56] [INFO ] [Real]Absence check using state equation in 36 ms returned sat
[2026-05-25 19:05:56] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 19:05:56] [INFO ] [Nat]Absence check using 8 positive place invariants in 4 ms returned sat
[2026-05-25 19:05:56] [INFO ] [Nat]Absence check using state equation in 39 ms returned sat
[2026-05-25 19:05:56] [INFO ] [Nat]Added 8 Read/Feed constraints in 76 ms returned sat
[2026-05-25 19:05:56] [INFO ] Computed and/alt/rep : 48/120/48 causal constraints (skipped 0 transitions) in 8 ms.
[2026-05-25 19:05:56] [INFO ] Added : 27 causal constraints over 7 iterations in 313 ms. Result :sat
Minimization took 36 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[12, 10, 11, 10, 10, 12, 12, 12, 11, 10, 12, 11, 10] Max Struct:[13, 13, 13, 13, 13, 12, 13, 12, 13, 13, 12, 13, 13]
FORMULA JoinFreeModules-PT-0010-UpperBounds-10 12 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA JoinFreeModules-PT-0010-UpperBounds-07 12 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA JoinFreeModules-PT-0010-UpperBounds-05 12 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[12, 10, 11, 10, 10, 12, 11, 10, 11, 10] Max Struct:[13, 13, 13, 13, 13, 13, 13, 13, 13, 13]
Support contains 10 out of 40 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 40/40 places, 64/64 transitions.
Graph (complete) has 96 edges and 40 vertex of which 35 are kept as prefixes of interest. Removing 5 places using SCC suffix rule.1 ms
Discarding 5 places :
Also discarding 8 output transitions
Drop transitions (Output transitions of discarded places.) removed 8 transitions
Applied a total of 1 rules in 6 ms. Remains 35 /40 variables (removed 5) and now considering 56/64 (removed 8) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 7 ms. Remains : 35/40 places, 56/64 transitions.
// Phase 1: matrix 56 rows 35 cols
[2026-05-25 19:05:57] [INFO ] Computed 7 invariants in 2 ms
Current structural bounds on expressions (after invariants) : Max Seen:[12, 10, 11, 10, 10, 12, 11, 10, 11, 10] Max Struct:[13, 13, 13, 13, 13, 13, 13, 13, 13, 13]
RANDOM walk for 1000003 steps (2 resets) in 2110 ms. (473 steps per ms)
BEST_FIRST walk for 10000009 steps (20 resets) in 8296 ms. (1205 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[12, 10, 11, 10, 10, 12, 11, 10, 11, 10] Max Struct:[13, 13, 13, 13, 13, 13, 13, 13, 13, 13]
[2026-05-25 19:06:07] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 19:06:07] [INFO ] [Real]Absence check using 7 positive place invariants in 3 ms returned sat
[2026-05-25 19:06:07] [INFO ] [Real]Absence check using state equation in 21 ms returned sat
[2026-05-25 19:06:07] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 19:06:07] [INFO ] [Nat]Absence check using 7 positive place invariants in 3 ms returned sat
[2026-05-25 19:06:07] [INFO ] [Nat]Absence check using state equation in 22 ms returned sat
[2026-05-25 19:06:07] [INFO ] State equation strengthened by 7 read => feed constraints.
[2026-05-25 19:06:07] [INFO ] [Nat]Added 7 Read/Feed constraints in 2 ms returned sat
[2026-05-25 19:06:07] [INFO ] Computed and/alt/rep : 42/105/42 causal constraints (skipped 0 transitions) in 4 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 19:06:07] [INFO ] Deduced a trap composed of 3 places in 33 ms of which 4 ms to minimize.
[2026-05-25 19:06:07] [INFO ] Trap strengthening procedure managed to obtain unsat after adding 1 trap constraints in 37 ms
Minimization took 15 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 19:06:07] [INFO ] [Real]Absence check using 7 positive place invariants in 3 ms returned sat
[2026-05-25 19:06:07] [INFO ] [Real]Absence check using state equation in 24 ms returned sat
[2026-05-25 19:06:07] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 19:06:07] [INFO ] [Nat]Absence check using 7 positive place invariants in 3 ms returned sat
[2026-05-25 19:06:07] [INFO ] [Nat]Absence check using state equation in 26 ms returned sat
[2026-05-25 19:06:07] [INFO ] [Nat]Added 7 Read/Feed constraints in 3 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 19:06:08] [INFO ] Deduced a trap composed of 3 places in 31 ms of which 2 ms to minimize.
[2026-05-25 19:06:08] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 53 ms
[2026-05-25 19:06:08] [INFO ] Computed and/alt/rep : 42/105/42 causal constraints (skipped 0 transitions) in 3 ms.
[2026-05-25 19:06:08] [INFO ] Added : 20 causal constraints over 7 iterations in 51 ms. Result :sat
Minimization took 21 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 19:06:08] [INFO ] [Real]Absence check using 7 positive place invariants in 3 ms returned sat
[2026-05-25 19:06:08] [INFO ] [Real]Absence check using state equation in 23 ms returned sat
[2026-05-25 19:06:08] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 19:06:08] [INFO ] [Nat]Absence check using 7 positive place invariants in 3 ms returned sat
[2026-05-25 19:06:08] [INFO ] [Nat]Absence check using state equation in 30 ms returned sat
[2026-05-25 19:06:08] [INFO ] [Nat]Added 7 Read/Feed constraints in 3 ms returned sat
[2026-05-25 19:06:08] [INFO ] Computed and/alt/rep : 42/105/42 causal constraints (skipped 0 transitions) in 7 ms.
[2026-05-25 19:06:08] [INFO ] Added : 29 causal constraints over 7 iterations in 154 ms. Result :sat
Minimization took 34 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 19:06:08] [INFO ] [Real]Absence check using 7 positive place invariants in 4 ms returned sat
[2026-05-25 19:06:08] [INFO ] [Real]Absence check using state equation in 30 ms returned sat
[2026-05-25 19:06:08] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 19:06:08] [INFO ] [Nat]Absence check using 7 positive place invariants in 5 ms returned sat
[2026-05-25 19:06:08] [INFO ] [Nat]Absence check using state equation in 62 ms returned sat
[2026-05-25 19:06:08] [INFO ] [Nat]Added 7 Read/Feed constraints in 37 ms returned sat
[2026-05-25 19:06:08] [INFO ] Computed and/alt/rep : 42/105/42 causal constraints (skipped 0 transitions) in 8 ms.
[2026-05-25 19:06:08] [INFO ] Added : 26 causal constraints over 6 iterations in 159 ms. Result :sat
Minimization took 32 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 19:06:08] [INFO ] [Real]Absence check using 7 positive place invariants in 4 ms returned sat
[2026-05-25 19:06:08] [INFO ] [Real]Absence check using state equation in 32 ms returned sat
[2026-05-25 19:06:08] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 19:06:08] [INFO ] [Nat]Absence check using 7 positive place invariants in 4 ms returned sat
[2026-05-25 19:06:09] [INFO ] [Nat]Absence check using state equation in 33 ms returned sat
[2026-05-25 19:06:09] [INFO ] [Nat]Added 7 Read/Feed constraints in 23 ms returned sat
[2026-05-25 19:06:09] [INFO ] Computed and/alt/rep : 42/105/42 causal constraints (skipped 0 transitions) in 6 ms.
[2026-05-25 19:06:09] [INFO ] Added : 20 causal constraints over 5 iterations in 65 ms. Result :sat
Minimization took 38 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 19:06:09] [INFO ] [Real]Absence check using 7 positive place invariants in 4 ms returned sat
[2026-05-25 19:06:09] [INFO ] [Real]Absence check using state equation in 35 ms returned sat
[2026-05-25 19:06:09] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 19:06:09] [INFO ] [Nat]Absence check using 7 positive place invariants in 5 ms returned sat
[2026-05-25 19:06:09] [INFO ] [Nat]Absence check using state equation in 32 ms returned sat
[2026-05-25 19:06:09] [INFO ] [Nat]Added 7 Read/Feed constraints in 5 ms returned sat
[2026-05-25 19:06:09] [INFO ] Computed and/alt/rep : 42/105/42 causal constraints (skipped 0 transitions) in 6 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 19:06:09] [INFO ] Deduced a trap composed of 3 places in 30 ms of which 3 ms to minimize.
[2026-05-25 19:06:09] [INFO ] Trap strengthening procedure managed to obtain unsat after adding 1 trap constraints in 36 ms
Minimization took 16 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 19:06:09] [INFO ] [Real]Absence check using 7 positive place invariants in 4 ms returned sat
[2026-05-25 19:06:09] [INFO ] [Real]Absence check using state equation in 32 ms returned sat
[2026-05-25 19:06:09] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 19:06:09] [INFO ] [Nat]Absence check using 7 positive place invariants in 5 ms returned sat
[2026-05-25 19:06:09] [INFO ] [Nat]Absence check using state equation in 39 ms returned sat
[2026-05-25 19:06:09] [INFO ] [Nat]Added 7 Read/Feed constraints in 4 ms returned sat
[2026-05-25 19:06:09] [INFO ] Computed and/alt/rep : 42/105/42 causal constraints (skipped 0 transitions) in 7 ms.
[2026-05-25 19:06:09] [INFO ] Added : 25 causal constraints over 6 iterations in 131 ms. Result :sat
Minimization took 34 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 19:06:09] [INFO ] [Real]Absence check using 7 positive place invariants in 4 ms returned sat
[2026-05-25 19:06:09] [INFO ] [Real]Absence check using state equation in 31 ms returned sat
[2026-05-25 19:06:09] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 19:06:09] [INFO ] [Nat]Absence check using 7 positive place invariants in 4 ms returned sat
[2026-05-25 19:06:09] [INFO ] [Nat]Absence check using state equation in 33 ms returned sat
[2026-05-25 19:06:09] [INFO ] [Nat]Added 7 Read/Feed constraints in 91 ms returned sat
[2026-05-25 19:06:09] [INFO ] Computed and/alt/rep : 42/105/42 causal constraints (skipped 0 transitions) in 7 ms.
[2026-05-25 19:06:10] [INFO ] Added : 21 causal constraints over 6 iterations in 69 ms. Result :sat
Minimization took 37 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 19:06:10] [INFO ] [Real]Absence check using 7 positive place invariants in 4 ms returned sat
[2026-05-25 19:06:10] [INFO ] [Real]Absence check using state equation in 32 ms returned sat
[2026-05-25 19:06:10] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 19:06:10] [INFO ] [Nat]Absence check using 7 positive place invariants in 4 ms returned sat
[2026-05-25 19:06:10] [INFO ] [Nat]Absence check using state equation in 39 ms returned sat
[2026-05-25 19:06:10] [INFO ] [Nat]Added 7 Read/Feed constraints in 4 ms returned sat
[2026-05-25 19:06:10] [INFO ] Computed and/alt/rep : 42/105/42 causal constraints (skipped 0 transitions) in 7 ms.
[2026-05-25 19:06:10] [INFO ] Added : 22 causal constraints over 5 iterations in 116 ms. Result :sat
Minimization took 32 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 19:06:10] [INFO ] [Real]Absence check using 7 positive place invariants in 5 ms returned sat
[2026-05-25 19:06:10] [INFO ] [Real]Absence check using state equation in 32 ms returned sat
[2026-05-25 19:06:10] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 19:06:10] [INFO ] [Nat]Absence check using 7 positive place invariants in 5 ms returned sat
[2026-05-25 19:06:10] [INFO ] [Nat]Absence check using state equation in 38 ms returned sat
[2026-05-25 19:06:10] [INFO ] [Nat]Added 7 Read/Feed constraints in 21 ms returned sat
[2026-05-25 19:06:10] [INFO ] Computed and/alt/rep : 42/105/42 causal constraints (skipped 0 transitions) in 6 ms.
[2026-05-25 19:06:10] [INFO ] Added : 14 causal constraints over 4 iterations in 77 ms. Result :sat
Minimization took 27 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[12, 10, 11, 10, 10, 12, 11, 10, 11, 10] Max Struct:[12, 13, 13, 13, 13, 12, 13, 13, 13, 13]
FORMULA JoinFreeModules-PT-0010-UpperBounds-06 12 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA JoinFreeModules-PT-0010-UpperBounds-00 12 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[10, 11, 10, 10, 11, 10, 11, 10] Max Struct:[13, 13, 13, 13, 13, 13, 13, 13]
Support contains 8 out of 35 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 35/35 places, 56/56 transitions.
Applied a total of 0 rules in 4 ms. Remains 35 /35 variables (removed 0) and now considering 56/56 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 4 ms. Remains : 35/35 places, 56/56 transitions.
[2026-05-25 19:06:10] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[10, 11, 10, 10, 11, 10, 11, 10] Max Struct:[13, 13, 13, 13, 13, 13, 13, 13]
RANDOM walk for 1000000 steps (2 resets) in 1745 ms. (572 steps per ms)
BEST_FIRST walk for 8000008 steps (16 resets) in 6464 ms. (1237 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[10, 11, 10, 10, 11, 10, 11, 10] Max Struct:[13, 13, 13, 13, 13, 13, 13, 13]
[2026-05-25 19:06:19] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 19:06:19] [INFO ] [Real]Absence check using 7 positive place invariants in 3 ms returned sat
[2026-05-25 19:06:19] [INFO ] [Real]Absence check using state equation in 27 ms returned sat
[2026-05-25 19:06:19] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 19:06:19] [INFO ] [Nat]Absence check using 7 positive place invariants in 5 ms returned sat
[2026-05-25 19:06:19] [INFO ] [Nat]Absence check using state equation in 35 ms returned sat
[2026-05-25 19:06:19] [INFO ] State equation strengthened by 7 read => feed constraints.
[2026-05-25 19:06:19] [INFO ] [Nat]Added 7 Read/Feed constraints in 4 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 19:06:19] [INFO ] Deduced a trap composed of 3 places in 37 ms of which 2 ms to minimize.
[2026-05-25 19:06:19] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 67 ms
[2026-05-25 19:06:19] [INFO ] Computed and/alt/rep : 42/105/42 causal constraints (skipped 0 transitions) in 6 ms.
[2026-05-25 19:06:19] [INFO ] Added : 20 causal constraints over 7 iterations in 70 ms. Result :sat
Minimization took 29 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 19:06:19] [INFO ] [Real]Absence check using 7 positive place invariants in 3 ms returned sat
[2026-05-25 19:06:19] [INFO ] [Real]Absence check using state equation in 24 ms returned sat
[2026-05-25 19:06:19] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 19:06:19] [INFO ] [Nat]Absence check using 7 positive place invariants in 3 ms returned sat
[2026-05-25 19:06:19] [INFO ] [Nat]Absence check using state equation in 30 ms returned sat
[2026-05-25 19:06:19] [INFO ] [Nat]Added 7 Read/Feed constraints in 3 ms returned sat
[2026-05-25 19:06:19] [INFO ] Computed and/alt/rep : 42/105/42 causal constraints (skipped 0 transitions) in 6 ms.
[2026-05-25 19:06:19] [INFO ] Added : 29 causal constraints over 7 iterations in 107 ms. Result :sat
Minimization took 23 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 19:06:19] [INFO ] [Real]Absence check using 7 positive place invariants in 4 ms returned sat
[2026-05-25 19:06:19] [INFO ] [Real]Absence check using state equation in 31 ms returned sat
[2026-05-25 19:06:19] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 19:06:19] [INFO ] [Nat]Absence check using 7 positive place invariants in 3 ms returned sat
[2026-05-25 19:06:19] [INFO ] [Nat]Absence check using state equation in 45 ms returned sat
[2026-05-25 19:06:19] [INFO ] [Nat]Added 7 Read/Feed constraints in 23 ms returned sat
[2026-05-25 19:06:19] [INFO ] Computed and/alt/rep : 42/105/42 causal constraints (skipped 0 transitions) in 7 ms.
[2026-05-25 19:06:19] [INFO ] Added : 26 causal constraints over 6 iterations in 108 ms. Result :sat
Minimization took 21 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 19:06:20] [INFO ] [Real]Absence check using 7 positive place invariants in 4 ms returned sat
[2026-05-25 19:06:20] [INFO ] [Real]Absence check using state equation in 32 ms returned sat
[2026-05-25 19:06:20] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 19:06:20] [INFO ] [Nat]Absence check using 7 positive place invariants in 3 ms returned sat
[2026-05-25 19:06:20] [INFO ] [Nat]Absence check using state equation in 26 ms returned sat
[2026-05-25 19:06:20] [INFO ] [Nat]Added 7 Read/Feed constraints in 14 ms returned sat
[2026-05-25 19:06:20] [INFO ] Computed and/alt/rep : 42/105/42 causal constraints (skipped 0 transitions) in 5 ms.
[2026-05-25 19:06:20] [INFO ] Added : 20 causal constraints over 5 iterations in 46 ms. Result :sat
Minimization took 24 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 19:06:20] [INFO ] [Real]Absence check using 7 positive place invariants in 4 ms returned sat
[2026-05-25 19:06:20] [INFO ] [Real]Absence check using state equation in 29 ms returned sat
[2026-05-25 19:06:20] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 19:06:20] [INFO ] [Nat]Absence check using 7 positive place invariants in 3 ms returned sat
[2026-05-25 19:06:20] [INFO ] [Nat]Absence check using state equation in 30 ms returned sat
[2026-05-25 19:06:20] [INFO ] [Nat]Added 7 Read/Feed constraints in 3 ms returned sat
[2026-05-25 19:06:20] [INFO ] Computed and/alt/rep : 42/105/42 causal constraints (skipped 0 transitions) in 5 ms.
[2026-05-25 19:06:20] [INFO ] Added : 25 causal constraints over 6 iterations in 91 ms. Result :sat
Minimization took 22 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 19:06:20] [INFO ] [Real]Absence check using 7 positive place invariants in 2 ms returned sat
[2026-05-25 19:06:20] [INFO ] [Real]Absence check using state equation in 24 ms returned sat
[2026-05-25 19:06:20] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 19:06:20] [INFO ] [Nat]Absence check using 7 positive place invariants in 4 ms returned sat
[2026-05-25 19:06:20] [INFO ] [Nat]Absence check using state equation in 32 ms returned sat
[2026-05-25 19:06:20] [INFO ] [Nat]Added 7 Read/Feed constraints in 54 ms returned sat
[2026-05-25 19:06:20] [INFO ] Computed and/alt/rep : 42/105/42 causal constraints (skipped 0 transitions) in 8 ms.
[2026-05-25 19:06:20] [INFO ] Added : 21 causal constraints over 6 iterations in 70 ms. Result :sat
Minimization took 37 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 19:06:20] [INFO ] [Real]Absence check using 7 positive place invariants in 4 ms returned sat
[2026-05-25 19:06:20] [INFO ] [Real]Absence check using state equation in 31 ms returned sat
[2026-05-25 19:06:20] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 19:06:20] [INFO ] [Nat]Absence check using 7 positive place invariants in 3 ms returned sat
[2026-05-25 19:06:20] [INFO ] [Nat]Absence check using state equation in 35 ms returned sat
[2026-05-25 19:06:20] [INFO ] [Nat]Added 7 Read/Feed constraints in 3 ms returned sat
[2026-05-25 19:06:20] [INFO ] Computed and/alt/rep : 42/105/42 causal constraints (skipped 0 transitions) in 7 ms.
[2026-05-25 19:06:21] [INFO ] Added : 22 causal constraints over 5 iterations in 97 ms. Result :sat
Minimization took 25 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 19:06:21] [INFO ] [Real]Absence check using 7 positive place invariants in 4 ms returned sat
[2026-05-25 19:06:21] [INFO ] [Real]Absence check using state equation in 32 ms returned sat
[2026-05-25 19:06:21] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 19:06:21] [INFO ] [Nat]Absence check using 7 positive place invariants in 4 ms returned sat
[2026-05-25 19:06:21] [INFO ] [Nat]Absence check using state equation in 38 ms returned sat
[2026-05-25 19:06:21] [INFO ] [Nat]Added 7 Read/Feed constraints in 23 ms returned sat
[2026-05-25 19:06:21] [INFO ] Computed and/alt/rep : 42/105/42 causal constraints (skipped 0 transitions) in 14 ms.
[2026-05-25 19:06:21] [INFO ] Added : 14 causal constraints over 4 iterations in 85 ms. Result :sat
Minimization took 28 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[10, 11, 10, 10, 11, 10, 11, 10] Max Struct:[13, 13, 13, 13, 13, 13, 13, 13]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[10, 11, 10, 10, 11, 10, 11, 10] Max Struct:[13, 13, 13, 13, 13, 13, 13, 13]
Support contains 8 out of 35 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 35/35 places, 56/56 transitions.
Applied a total of 0 rules in 4 ms. Remains 35 /35 variables (removed 0) and now considering 56/56 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 4 ms. Remains : 35/35 places, 56/56 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 35/35 places, 56/56 transitions.
Applied a total of 0 rules in 4 ms. Remains 35 /35 variables (removed 0) and now considering 56/56 (removed 0) transitions.
[2026-05-25 19:06:21] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 19:06:21] [INFO ] Implicit Places using invariants in 28 ms returned []
[2026-05-25 19:06:21] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 19:06:21] [INFO ] State equation strengthened by 7 read => feed constraints.
[2026-05-25 19:06:21] [INFO ] Implicit Places using invariants and state equation in 69 ms returned []
Implicit Place search using SMT with State Equation took 101 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-25 19:06:21] [INFO ] Redundant transitions in 1 ms returned []
Running 42 sub problems to find dead transitions.
[2026-05-25 19:06:21] [INFO ] Invariant cache hit.
[2026-05-25 19:06:21] [INFO ] State equation strengthened by 7 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/28 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 42 unsolved
At refinement iteration 1 (OVERLAPS) 7/35 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 42 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/35 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 42 unsolved
At refinement iteration 3 (OVERLAPS) 56/91 variables, 35/42 constraints. Problems are: Problem set: 0 solved, 42 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/91 variables, 7/49 constraints. Problems are: Problem set: 0 solved, 42 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/91 variables, 0/49 constraints. Problems are: Problem set: 0 solved, 42 unsolved
At refinement iteration 6 (OVERLAPS) 0/91 variables, 0/49 constraints. Problems are: Problem set: 0 solved, 42 unsolved
No progress, stopping.
After SMT solving in domain Real declared 91/91 variables, and 49 constraints, problems are : Problem set: 0 solved, 42 unsolved in 1593 ms.
Refiners :[Positive P Invariants (semi-flows): 7/7 constraints, State Equation: 35/35 constraints, ReadFeed: 7/7 constraints, PredecessorRefiner: 42/42 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 42 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/28 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 42 unsolved
At refinement iteration 1 (OVERLAPS) 7/35 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 42 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/35 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 42 unsolved
At refinement iteration 3 (OVERLAPS) 56/91 variables, 35/42 constraints. Problems are: Problem set: 0 solved, 42 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/91 variables, 7/49 constraints. Problems are: Problem set: 0 solved, 42 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/91 variables, 42/91 constraints. Problems are: Problem set: 0 solved, 42 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/91 variables, 0/91 constraints. Problems are: Problem set: 0 solved, 42 unsolved
At refinement iteration 7 (OVERLAPS) 0/91 variables, 0/91 constraints. Problems are: Problem set: 0 solved, 42 unsolved
No progress, stopping.
After SMT solving in domain Int declared 91/91 variables, and 91 constraints, problems are : Problem set: 0 solved, 42 unsolved in 4901 ms.
Refiners :[Positive P Invariants (semi-flows): 7/7 constraints, State Equation: 35/35 constraints, ReadFeed: 7/7 constraints, PredecessorRefiner: 42/42 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 6514ms problems are : Problem set: 0 solved, 42 unsolved
Search for dead transitions found 0 dead transitions in 6515ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 6629 ms. Remains : 35/35 places, 56/56 transitions.
RANDOM walk for 40001 steps (8 resets) in 1088 ms. (36 steps per ms) remains 16/16 properties
BEST_FIRST walk for 4004 steps (8 resets) in 35 ms. (111 steps per ms) remains 16/16 properties
BEST_FIRST walk for 4004 steps (8 resets) in 24 ms. (160 steps per ms) remains 16/16 properties
BEST_FIRST walk for 4004 steps (8 resets) in 32 ms. (121 steps per ms) remains 16/16 properties
BEST_FIRST walk for 4004 steps (8 resets) in 27 ms. (143 steps per ms) remains 16/16 properties
[2026-05-25 19:06:28] [INFO ] Flatten gal took : 46 ms
BEST_FIRST walk for 4004 steps (8 resets) in 25 ms. (154 steps per ms) remains 16/16 properties
[2026-05-25 19:06:28] [INFO ] Flatten gal took : 13 ms
BEST_FIRST walk for 4004 steps (8 resets) in 30 ms. (129 steps per ms) remains 16/16 properties
BEST_FIRST walk for 4004 steps (8 resets) in 28 ms. (138 steps per ms) remains 16/16 properties
[2026-05-25 19:06:28] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality10261058093721184692.gal : 8 ms
BEST_FIRST walk for 4002 steps (8 resets) in 24 ms. (160 steps per ms) remains 16/16 properties
[2026-05-25 19:06:28] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality14747291257342290656.prop : 1 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality10261058093721184692.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality14747291257342290656.prop' '--nowitness' '--gen-order' 'FOLLOW'
BEST_FIRST walk for 4004 steps (8 resets) in 18 ms. (210 steps per ms) remains 16/16 properties

BEST_FIRST walk for 4004 steps (8 resets) in 40 ms. (97 steps per ms) remains 16/16 properties
its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...330
BEST_FIRST walk for 4004 steps (8 resets) in 24 ms. (160 steps per ms) remains 16/16 properties
Loading property file /tmp/ReachabilityCardinality14747291257342290656.prop.
SDD proceeding with computation,16 properties remain. new max is 4
SDD size :1 after 8
BEST_FIRST walk for 4004 steps (8 resets) in 24 ms. (160 steps per ms) remains 16/16 properties
SDD proceeding with computation,16 properties remain. new max is 8
SDD size :8 after 25
SDD proceeding with computation,16 properties remain. new max is 16
SDD size :25 after 56
BEST_FIRST walk for 4004 steps (8 resets) in 29 ms. (133 steps per ms) remains 16/16 properties
SDD proceeding with computation,16 properties remain. new max is 32
SDD size :56 after 369
BEST_FIRST walk for 4004 steps (8 resets) in 22 ms. (174 steps per ms) remains 16/16 properties
SDD proceeding with computation,16 properties remain. new max is 64
SDD size :369 after 967
BEST_FIRST walk for 4004 steps (8 resets) in 15 ms. (250 steps per ms) remains 16/16 properties
SDD proceeding with computation,16 properties remain. new max is 128
SDD size :967 after 1449
BEST_FIRST walk for 4004 steps (8 resets) in 18 ms. (210 steps per ms) remains 16/16 properties
SDD proceeding with computation,16 properties remain. new max is 256
SDD size :1449 after 2.36588e+06
SDD proceeding with computation,16 properties remain. new max is 512
SDD size :2.36588e+06 after 1.91716e+11
SDD proceeding with computation,16 properties remain. new max is 1024
SDD size :1.91716e+11 after 2.75037e+21
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,1.7419e+23,0.234794,7284,2,617,14,19061,22,0,313,19184,0
Total reachable state count : 174190314299603690012672

Verifying 16 reachability properties.
Reachability property MAX0 does not hold.
No reachable states exhibit your property : MAX0

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
MAX0,0,0.236312,7284,1,0,14,19061,22,0,314,19184,0
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
MIN0,0,0.237482,7540,1,0,14,19061,22,0,314,19184,0
Reachability property MAX1 does not hold.
No reachable states exhibit your property : MAX1

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
MAX1,0,0.238457,7540,1,0,14,19061,22,0,314,19184,0
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
MIN1,0,0.238892,7540,1,0,14,19061,22,0,314,19184,0
Reachability property MAX2 does not hold.
No reachable states exhibit your property : MAX2

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
MAX2,0,0.239132,7540,1,0,14,19061,22,0,314,19184,0
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
MIN2,0,0.239398,7540,1,0,14,19061,22,0,314,19184,0
Reachability property MAX3 does not hold.
No reachable states exhibit your property : MAX3

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
MAX3,0,0.239856,7540,1,0,14,19061,22,0,314,19184,0
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
MIN3,0,0.240857,7540,1,0,14,19061,22,0,314,19184,0
Reachability property MAX4 does not hold.
No reachable states exhibit your property : MAX4

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
MAX4,0,0.241107,7540,1,0,14,19061,22,0,314,19184,0
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
MIN4,0,0.241325,7540,1,0,14,19061,22,0,314,19184,0
Reachability property MAX5 does not hold.
No reachable states exhibit your property : MAX5

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
MAX5,0,0.241802,7540,1,0,14,19061,22,0,314,19184,0
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
MIN5,0,0.242315,7540,1,0,14,19061,22,0,314,19184,0
Reachability property MAX6 does not hold.
No reachable states exhibit your property : MAX6

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
MAX6,0,0.242991,7540,1,0,14,19061,22,0,314,19184,0
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
MIN6,0,0.243646,7540,1,0,14,19061,22,0,314,19184,0
Reachability property MAX7 does not hold.
No reachable states exhibit your property : MAX7

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
MAX7,0,0.243971,7540,1,0,14,19061,22,0,314,19184,0
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
MIN7,0,0.244277,7540,1,0,14,19061,22,0,314,19184,0
Interrupted probabilistic random walk after 179789 steps, run timeout after 3001 ms. (steps per millisecond=59 ) properties seen :0 out of 16
Probabilistic random walk after 179789 steps, saw 153621 distinct states, run finished after 3006 ms. (steps per millisecond=59 ) properties seen :0
FORMULA JoinFreeModules-PT-0010-UpperBounds-15 10 TECHNIQUES REACHABILITY_MIN
FORMULA JoinFreeModules-PT-0010-UpperBounds-12 11 TECHNIQUES REACHABILITY_MIN
FORMULA JoinFreeModules-PT-0010-UpperBounds-09 10 TECHNIQUES REACHABILITY_MIN
FORMULA JoinFreeModules-PT-0010-UpperBounds-08 11 TECHNIQUES REACHABILITY_MIN
FORMULA JoinFreeModules-PT-0010-UpperBounds-04 10 TECHNIQUES REACHABILITY_MIN
FORMULA JoinFreeModules-PT-0010-UpperBounds-03 10 TECHNIQUES REACHABILITY_MIN
FORMULA JoinFreeModules-PT-0010-UpperBounds-02 11 TECHNIQUES REACHABILITY_MIN
FORMULA JoinFreeModules-PT-0010-UpperBounds-01 10 TECHNIQUES REACHABILITY_MIN
Current structural bounds on expressions (After reachability solving 8 queries.) : Max Seen:[] Max Struct:[]
All properties solved without resorting to model-checking.
Total runtime 82857 ms.

BK_STOP 1779735991868

--------------------
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_1.0.0.202505121319.jar
+ VERSION=202505121319
+ echo 'Running Version 202505121319'
+ /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="JoinFreeModules-PT-0010"
export BK_EXAMINATION="UpperBounds"
export BK_TOOL="gold2025"
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 gold2025"
echo " Input is JoinFreeModules-PT-0010, 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 r175-smll-177961111800021"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/JoinFreeModules-PT-0010.tgz
mv JoinFreeModules-PT-0010 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 ;