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-177961111800045.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 LamportFastMutEx-COL-4, examination is UpperBounds
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r175-smll-177961111800045
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 544K
-rw-r--r-- 1 mcc users 7.4K Mar 7 16:44 CTLCardinality.txt
-rw-r--r-- 1 mcc users 70K Mar 7 16:44 CTLCardinality.xml
-rw-r--r-- 1 mcc users 6.5K Mar 7 16:44 CTLFireability.txt
-rw-r--r-- 1 mcc users 56K Mar 7 16:44 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Mar 3 18:30 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 3.9K Mar 15 11:11 LTLCardinality.txt
-rw-r--r-- 1 mcc users 27K Mar 15 11:11 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.6K Mar 15 11:11 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K Mar 15 11:11 LTLFireability.xml
-rw-r--r-- 1 mcc users 18K Mar 7 16:44 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 178K Mar 7 16:44 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 8.8K Mar 7 16:44 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 64K Mar 7 16:44 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.8K Mar 15 11:11 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.8K Mar 15 11:11 UpperBounds.xml
-rw-r--r-- 1 mcc users 5 Mar 3 18:30 equiv_pt
-rw-r--r-- 1 mcc users 2 Mar 3 18:30 instance
-rw-r--r-- 1 mcc users 5 Mar 3 18:30 iscolored
-rw-r--r-- 1 mcc users 40K 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 LamportFastMutEx-COL-4-UpperBounds-00
FORMULA_NAME LamportFastMutEx-COL-4-UpperBounds-01
FORMULA_NAME LamportFastMutEx-COL-4-UpperBounds-02
FORMULA_NAME LamportFastMutEx-COL-4-UpperBounds-03
FORMULA_NAME LamportFastMutEx-COL-4-UpperBounds-04
FORMULA_NAME LamportFastMutEx-COL-4-UpperBounds-05
FORMULA_NAME LamportFastMutEx-COL-4-UpperBounds-06
FORMULA_NAME LamportFastMutEx-COL-4-UpperBounds-07
FORMULA_NAME LamportFastMutEx-COL-4-UpperBounds-08
FORMULA_NAME LamportFastMutEx-COL-4-UpperBounds-09
FORMULA_NAME LamportFastMutEx-COL-4-UpperBounds-10
FORMULA_NAME LamportFastMutEx-COL-4-UpperBounds-11
FORMULA_NAME LamportFastMutEx-COL-4-UpperBounds-12
FORMULA_NAME LamportFastMutEx-COL-4-UpperBounds-13
FORMULA_NAME LamportFastMutEx-COL-4-UpperBounds-14
FORMULA_NAME LamportFastMutEx-COL-4-UpperBounds-15

=== Now, execution of the tool begins

BK_START 1779742969286

Invoking MCC driver with
GOLD_TOOL=
BK_EXAMINATION=UpperBounds
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=LamportFastMutEx-COL-4
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is COL
UpperBounds COL
Running Version 202505121319
[2026-05-25 21:02:51] [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 21:02:51] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-25 21:02:51] [INFO ] Detected file is not PT type :http://www.pnml.org/version-2009/grammar/symmetricnet
log4j:WARN No appenders could be found for logger (org.apache.axiom.locator.DefaultOMMetaFactoryLocator).
log4j:WARN Please initialize the log4j system properly.
log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.
[2026-05-25 21:02:52] [WARNING] Using fallBack plugin, rng conformance not checked
[2026-05-25 21:02:52] [INFO ] Load time of PNML (colored model parsed with PNMLFW) : 1344 ms
[2026-05-25 21:02:52] [INFO ] Imported 18 HL places and 17 HL transitions for a total of 135 PT places and 285.0 transition bindings in 42 ms.
Parsed 16 properties from file /home/mcc/execution/UpperBounds.xml in 13 ms.
[2026-05-25 21:02:52] [INFO ] Built PT skeleton of HLPN with 18 places and 17 transitions 68 arcs in 10 ms.
[2026-05-25 21:02:52] [INFO ] Skeletonized 16 HLPN properties in 1 ms.
Reduce places removed 3 places and 0 transitions.
// Phase 1: matrix 17 rows 15 cols
[2026-05-25 21:02:52] [INFO ] Computed 2 invariants in 9 ms
Current structural bounds on expressions (after Invariants on skeleton) : Max Seen:[0, 0, 1, 0, 4, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0] Max Struct:[4, 4, 1, 4, 4, 4, 4, 16, 4, 4, 4, 1, 4, 16, 4, 4]
FORMULA LamportFastMutEx-COL-4-UpperBounds-11 1 TECHNIQUES TOPOLOGICAL CPN_APPROX INITIAL_STATE
FORMULA LamportFastMutEx-COL-4-UpperBounds-04 4 TECHNIQUES TOPOLOGICAL CPN_APPROX INITIAL_STATE
FORMULA LamportFastMutEx-COL-4-UpperBounds-02 1 TECHNIQUES TOPOLOGICAL CPN_APPROX INITIAL_STATE
[2026-05-25 21:02:53] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 21:02:53] [INFO ] [Real]Absence check using 2 positive place invariants in 8 ms returned sat
[2026-05-25 21:02:53] [INFO ] [Real]Absence check using state equation in 40 ms returned sat
[2026-05-25 21:02:53] [INFO ] State equation strengthened by 1 read => feed constraints.
[2026-05-25 21:02:53] [INFO ] [Real]Added 1 Read/Feed constraints in 11 ms returned sat
[2026-05-25 21:02:53] [INFO ] Computed and/alt/rep : 16/20/16 causal constraints (skipped 0 transitions) in 8 ms.
[2026-05-25 21:02:53] [INFO ] Added : 6 causal constraints over 2 iterations in 50 ms. Result :sat
Minimization took 21 ms.
[2026-05-25 21:02:53] [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 21:02:53] [INFO ] [Nat]Absence check using 2 positive place invariants in 3 ms returned sat
[2026-05-25 21:02:53] [INFO ] [Nat]Absence check using state equation in 27 ms returned sat
[2026-05-25 21:02:53] [INFO ] [Nat]Added 1 Read/Feed constraints in 2 ms returned sat
[2026-05-25 21:02:53] [INFO ] Computed and/alt/rep : 16/20/16 causal constraints (skipped 0 transitions) in 7 ms.
[2026-05-25 21:02:53] [INFO ] Added : 6 causal constraints over 2 iterations in 29 ms. Result :sat
Minimization took 10 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 21:02:53] [INFO ] [Real]Absence check using 2 positive place invariants in 3 ms returned sat
[2026-05-25 21:02:53] [INFO ] [Real]Absence check using state equation in 27 ms returned sat
[2026-05-25 21:02:53] [INFO ] [Real]Added 1 Read/Feed constraints in 4 ms returned sat
[2026-05-25 21:02:53] [INFO ] Computed and/alt/rep : 16/20/16 causal constraints (skipped 0 transitions) in 4 ms.
[2026-05-25 21:02:53] [INFO ] Added : 4 causal constraints over 1 iterations in 22 ms. Result :sat
Minimization took 13 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 21:02:53] [INFO ] [Real]Absence check using 2 positive place invariants in 4 ms returned sat
[2026-05-25 21:02:53] [INFO ] [Real]Absence check using state equation in 18 ms returned sat
[2026-05-25 21:02:53] [INFO ] [Real]Added 1 Read/Feed constraints in 1 ms returned sat
[2026-05-25 21:02:53] [INFO ] Computed and/alt/rep : 16/20/16 causal constraints (skipped 0 transitions) in 4 ms.
[2026-05-25 21:02:53] [INFO ] Added : 4 causal constraints over 1 iterations in 18 ms. Result :sat
Minimization took 10 ms.
[2026-05-25 21:02:53] [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 21:02:53] [INFO ] [Nat]Absence check using 2 positive place invariants in 3 ms returned sat
[2026-05-25 21:02:53] [INFO ] [Nat]Absence check using state equation in 20 ms returned sat
[2026-05-25 21:02:53] [INFO ] [Nat]Added 1 Read/Feed constraints in 1 ms returned sat
[2026-05-25 21:02:53] [INFO ] Computed and/alt/rep : 16/20/16 causal constraints (skipped 0 transitions) in 4 ms.
[2026-05-25 21:02:53] [INFO ] Added : 4 causal constraints over 1 iterations in 18 ms. Result :sat
Minimization took 8 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 21:02:53] [INFO ] [Real]Absence check using 2 positive place invariants in 3 ms returned sat
[2026-05-25 21:02:53] [INFO ] [Real]Absence check using state equation in 16 ms returned sat
[2026-05-25 21:02:53] [INFO ] [Real]Added 1 Read/Feed constraints in 1 ms returned sat
[2026-05-25 21:02:54] [INFO ] Computed and/alt/rep : 16/20/16 causal constraints (skipped 0 transitions) in 7 ms.
[2026-05-25 21:02:54] [INFO ] Added : 5 causal constraints over 1 iterations in 21 ms. Result :sat
Minimization took 9 ms.
[2026-05-25 21:02:54] [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 21:02:54] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2026-05-25 21:02:54] [INFO ] [Nat]Absence check using state equation in 15 ms returned sat
[2026-05-25 21:02:54] [INFO ] [Nat]Added 1 Read/Feed constraints in 0 ms returned sat
[2026-05-25 21:02:54] [INFO ] Computed and/alt/rep : 16/20/16 causal constraints (skipped 0 transitions) in 4 ms.
[2026-05-25 21:02:54] [INFO ] Added : 5 causal constraints over 1 iterations in 15 ms. Result :sat
Minimization took 8 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 21:02:54] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2026-05-25 21:02:54] [INFO ] [Real]Absence check using state equation in 19 ms returned sat
[2026-05-25 21:02:54] [INFO ] [Real]Added 1 Read/Feed constraints in 1 ms returned sat
[2026-05-25 21:02:54] [INFO ] Computed and/alt/rep : 16/20/16 causal constraints (skipped 0 transitions) in 8 ms.
[2026-05-25 21:02:54] [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 21:02:54] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2026-05-25 21:02:54] [INFO ] [Nat]Absence check using state equation in 16 ms returned sat
[2026-05-25 21:02:54] [INFO ] [Nat]Added 1 Read/Feed constraints in 1 ms returned sat
[2026-05-25 21:02:54] [INFO ] Computed and/alt/rep : 16/20/16 causal constraints (skipped 0 transitions) in 6 ms.
[2026-05-25 21:02:54] [INFO ] Added : 7 causal constraints over 2 iterations in 24 ms. Result :sat
Minimization took 7 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 21:02:54] [INFO ] [Real]Absence check using 2 positive place invariants in 3 ms returned sat
[2026-05-25 21:02:54] [INFO ] [Real]Absence check using state equation in 19 ms returned sat
[2026-05-25 21:02:54] [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 21:02:54] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2026-05-25 21:02:54] [INFO ] [Nat]Absence check using state equation in 13 ms returned sat
[2026-05-25 21:02:54] [INFO ] [Nat]Added 1 Read/Feed constraints in 1 ms returned sat
[2026-05-25 21:02:54] [INFO ] Computed and/alt/rep : 16/20/16 causal constraints (skipped 0 transitions) in 3 ms.
[2026-05-25 21:02:54] [INFO ] Added : 11 causal constraints over 3 iterations in 77 ms. Result :sat
Minimization took 13 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 21:02:54] [INFO ] [Real]Absence check using 2 positive place invariants in 3 ms returned sat
[2026-05-25 21:02:54] [INFO ] [Real]Absence check using state equation in 17 ms returned sat
[2026-05-25 21:02:54] [INFO ] [Real]Added 1 Read/Feed constraints in 1 ms returned sat
[2026-05-25 21:02:54] [INFO ] Computed and/alt/rep : 16/20/16 causal constraints (skipped 0 transitions) in 7 ms.
[2026-05-25 21:02:54] [INFO ] Added : 9 causal constraints over 2 iterations in 29 ms. Result :sat
Minimization took 11 ms.
[2026-05-25 21:02:54] [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 21:02:54] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2026-05-25 21:02:54] [INFO ] [Nat]Absence check using state equation in 20 ms returned sat
[2026-05-25 21:02:54] [INFO ] [Nat]Added 1 Read/Feed constraints in 1 ms returned sat
[2026-05-25 21:02:54] [INFO ] Computed and/alt/rep : 16/20/16 causal constraints (skipped 0 transitions) in 8 ms.
[2026-05-25 21:02:54] [INFO ] Added : 9 causal constraints over 2 iterations in 45 ms. Result :sat
Minimization took 11 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 21:02:54] [INFO ] [Real]Absence check using 2 positive place invariants in 3 ms returned sat
[2026-05-25 21:02:54] [INFO ] [Real]Absence check using state equation in 15 ms returned sat
[2026-05-25 21:02:54] [INFO ] [Real]Added 1 Read/Feed constraints in 1 ms returned sat
[2026-05-25 21:02:54] [INFO ] Computed and/alt/rep : 16/20/16 causal constraints (skipped 0 transitions) in 4 ms.
[2026-05-25 21:02:54] [INFO ] Added : 4 causal constraints over 1 iterations in 16 ms. Result :sat
Minimization took 10 ms.
[2026-05-25 21:02:54] [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 21:02:54] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2026-05-25 21:02:54] [INFO ] [Nat]Absence check using state equation in 14 ms returned sat
[2026-05-25 21:02:54] [INFO ] [Nat]Added 1 Read/Feed constraints in 0 ms returned sat
[2026-05-25 21:02:54] [INFO ] Computed and/alt/rep : 16/20/16 causal constraints (skipped 0 transitions) in 3 ms.
[2026-05-25 21:02:54] [INFO ] Added : 4 causal constraints over 1 iterations in 15 ms. Result :sat
Minimization took 8 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 21:02:54] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2026-05-25 21:02:54] [INFO ] [Real]Absence check using state equation in 13 ms returned sat
[2026-05-25 21:02:54] [INFO ] [Real]Added 1 Read/Feed constraints in 1 ms returned sat
[2026-05-25 21:02:54] [INFO ] Computed and/alt/rep : 16/20/16 causal constraints (skipped 0 transitions) in 6 ms.
[2026-05-25 21:02:55] [INFO ] Added : 4 causal constraints over 1 iterations in 18 ms. Result :sat
Minimization took 9 ms.
[2026-05-25 21:02:55] [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 21:02:55] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2026-05-25 21:02:55] [INFO ] [Nat]Absence check using state equation in 20 ms returned sat
[2026-05-25 21:02:55] [INFO ] [Nat]Added 1 Read/Feed constraints in 1 ms returned sat
[2026-05-25 21:02:55] [INFO ] Computed and/alt/rep : 16/20/16 causal constraints (skipped 0 transitions) in 5 ms.
[2026-05-25 21:02:55] [INFO ] Added : 4 causal constraints over 1 iterations in 14 ms. Result :sat
Minimization took 8 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 21:02:55] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2026-05-25 21:02:55] [INFO ] [Real]Absence check using state equation in 16 ms returned sat
[2026-05-25 21:02:55] [INFO ] [Real]Added 1 Read/Feed constraints in 1 ms returned sat
[2026-05-25 21:02:55] [INFO ] Computed and/alt/rep : 16/20/16 causal constraints (skipped 0 transitions) in 4 ms.
[2026-05-25 21:02:55] [INFO ] Added : 4 causal constraints over 1 iterations in 17 ms. Result :sat
Minimization took 9 ms.
[2026-05-25 21:02:55] [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 21:02:55] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2026-05-25 21:02:55] [INFO ] [Nat]Absence check using state equation in 15 ms returned sat
[2026-05-25 21:02:55] [INFO ] [Nat]Added 1 Read/Feed constraints in 1 ms returned sat
[2026-05-25 21:02:55] [INFO ] Computed and/alt/rep : 16/20/16 causal constraints (skipped 0 transitions) in 3 ms.
[2026-05-25 21:02:55] [INFO ] Added : 4 causal constraints over 1 iterations in 13 ms. Result :sat
Minimization took 8 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 21:02:55] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2026-05-25 21:02:55] [INFO ] [Real]Absence check using state equation in 12 ms returned sat
[2026-05-25 21:02:55] [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 21:02:55] [INFO ] [Nat]Absence check using 2 positive place invariants in 1 ms returned sat
[2026-05-25 21:02:55] [INFO ] [Nat]Absence check using state equation in 12 ms returned sat
[2026-05-25 21:02:55] [INFO ] [Nat]Added 1 Read/Feed constraints in 1 ms returned sat
[2026-05-25 21:02:55] [INFO ] Computed and/alt/rep : 16/20/16 causal constraints (skipped 0 transitions) in 3 ms.
[2026-05-25 21:02:55] [INFO ] Added : 11 causal constraints over 3 iterations in 21 ms. Result :sat
Minimization took 7 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 21:02:55] [INFO ] [Real]Absence check using 2 positive place invariants in 6 ms returned sat
[2026-05-25 21:02:55] [INFO ] [Real]Absence check using state equation in 13 ms returned sat
[2026-05-25 21:02:55] [INFO ] [Real]Added 1 Read/Feed constraints in 1 ms returned sat
[2026-05-25 21:02:55] [INFO ] Computed and/alt/rep : 16/20/16 causal constraints (skipped 0 transitions) in 5 ms.
[2026-05-25 21:02:55] [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 21:02:55] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2026-05-25 21:02:55] [INFO ] [Nat]Absence check using state equation in 13 ms returned sat
[2026-05-25 21:02:55] [INFO ] [Nat]Added 1 Read/Feed constraints in 0 ms returned sat
[2026-05-25 21:02:55] [INFO ] Computed and/alt/rep : 16/20/16 causal constraints (skipped 0 transitions) in 4 ms.
[2026-05-25 21:02:55] [INFO ] Added : 5 causal constraints over 1 iterations in 14 ms. Result :sat
Minimization took 6 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 21:02:55] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2026-05-25 21:02:55] [INFO ] [Real]Absence check using state equation in 16 ms returned sat
[2026-05-25 21:02:55] [INFO ] [Real]Added 1 Read/Feed constraints in 1 ms returned sat
[2026-05-25 21:02:55] [INFO ] Computed and/alt/rep : 16/20/16 causal constraints (skipped 0 transitions) in 4 ms.
[2026-05-25 21:02:55] [INFO ] Added : 7 causal constraints over 2 iterations in 16 ms. Result :sat
Minimization took 7 ms.
[2026-05-25 21:02:55] [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 21:02:55] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2026-05-25 21:02:55] [INFO ] [Nat]Absence check using state equation in 12 ms returned sat
[2026-05-25 21:02:55] [INFO ] [Nat]Added 1 Read/Feed constraints in 1 ms returned sat
[2026-05-25 21:02:55] [INFO ] Computed and/alt/rep : 16/20/16 causal constraints (skipped 0 transitions) in 3 ms.
[2026-05-25 21:02:55] [INFO ] Added : 7 causal constraints over 2 iterations in 18 ms. Result :sat
Minimization took 9 ms.
Current structural bounds on expressions (after SMT on skeleton) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[4, 4, 4, 4, 4, 16, 4, 4, 4, 4, 16, 4, 4]
Domain [pid(5), pid(5)] of place P_wait breaks symmetries in sort pid
Symmetric sort wr.t. initial and guards and successors and join/free detected :P_bool
Arc [3:1*[$i, 1]] contains constants of sort P_bool
Transition T_setbi_2 : constants on arcs in [[3:1*[$i, 1]]] introduces in P_bool(2) partition with 1 elements that refines current partition to 2 subsets.
[2026-05-25 21:02:55] [INFO ] Unfolded HLPN to a Petri net with 135 places and 230 transitions 990 arcs in 68 ms.
[2026-05-25 21:02:55] [INFO ] Unfolded 13 HLPN properties in 0 ms.
Deduced a syphon composed of 33 places in 2 ms
Reduce places removed 33 places and 50 transitions.
Current structural bounds on expressions (Initially) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (Adding known information on max bounds.) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[4, 4, 4, 4, 4, 16, 4, 4, 4, 4, 16, 4, 4]
Current structural bounds on expressions (Before main loop) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[4, 4, 4, 4, 4, 16, 4, 4, 4, 4, 16, 4, 4]
[2026-05-25 21:02:55] [INFO ] Flow matrix only has 144 transitions (discarded 36 similar events)
// Phase 1: matrix 144 rows 102 cols
[2026-05-25 21:02:55] [INFO ] Computed 26 invariants in 7 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[4, 4, 4, 4, 4, 16, 4, 4, 4, 4, 16, 4, 4]
RANDOM walk for 10000 steps (2 resets) in 96 ms. (103 steps per ms)
FORMULA LamportFastMutEx-COL-4-UpperBounds-12 4 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA LamportFastMutEx-COL-4-UpperBounds-10 4 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA LamportFastMutEx-COL-4-UpperBounds-09 4 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA LamportFastMutEx-COL-4-UpperBounds-14 4 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 100009 steps (20 resets) in 324 ms. (307 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[3, 1, 3, 3, 3, 12, 3, 12, 3] Max Struct:[4, 4, 4, 4, 4, 16, 4, 16, 4]
[2026-05-25 21:02:56] [INFO ] Flow matrix only has 144 transitions (discarded 36 similar events)
[2026-05-25 21:02:56] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 21:02:56] [INFO ] [Real]Absence check using 26 positive place invariants in 19 ms returned sat
[2026-05-25 21:02:56] [INFO ] [Real]Absence check using state equation in 106 ms returned sat
[2026-05-25 21:02:56] [INFO ] State equation strengthened by 40 read => feed constraints.
[2026-05-25 21:02:56] [INFO ] [Real]Added 40 Read/Feed constraints in 19 ms returned sat
[2026-05-25 21:02:56] [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 21:02:56] [INFO ] [Nat]Absence check using 26 positive place invariants in 18 ms returned sat
[2026-05-25 21:02:56] [INFO ] [Nat]Absence check using state equation in 104 ms returned sat
[2026-05-25 21:02:56] [INFO ] [Nat]Added 40 Read/Feed constraints in 22 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:02:56] [INFO ] Deduced a trap composed of 10 places in 62 ms of which 13 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:02:56] [INFO ] Deduced a trap composed of 21 places in 65 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:02:56] [INFO ] Deduced a trap composed of 21 places in 63 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:02:56] [INFO ] Deduced a trap composed of 21 places in 74 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:02:57] [INFO ] Deduced a trap composed of 21 places in 73 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:02:57] [INFO ] Deduced a trap composed of 6 places in 78 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:02:57] [INFO ] Deduced a trap composed of 10 places in 55 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:02:57] [INFO ] Deduced a trap composed of 10 places in 79 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:02:57] [INFO ] Deduced a trap composed of 10 places in 54 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:02:57] [INFO ] Deduced a trap composed of 10 places in 81 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:02:57] [INFO ] Deduced a trap composed of 10 places in 55 ms of which 4 ms to minimize.
[2026-05-25 21:02:57] [INFO ] Trap strengthening procedure managed to obtain unsat after adding 11 trap constraints in 929 ms
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 21:02:57] [INFO ] [Real]Absence check using 26 positive place invariants in 15 ms returned sat
[2026-05-25 21:02:57] [INFO ] [Real]Absence check using state equation in 88 ms returned sat
[2026-05-25 21:02:57] [INFO ] [Real]Added 40 Read/Feed constraints in 10 ms returned sat
[2026-05-25 21:02:57] [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 21:02:57] [INFO ] [Nat]Absence check using 26 positive place invariants in 11 ms returned sat
[2026-05-25 21:02:57] [INFO ] [Nat]Absence check using state equation in 82 ms returned sat
[2026-05-25 21:02:57] [INFO ] [Nat]Added 40 Read/Feed constraints in 17 ms returned sat
[2026-05-25 21:02:57] [INFO ] Computed and/alt/rep : 128/512/128 causal constraints (skipped 12 transitions) in 21 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:02:58] [INFO ] Deduced a trap composed of 9 places in 159 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:02:58] [INFO ] Deduced a trap composed of 21 places in 156 ms of which 15 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:02:58] [INFO ] Deduced a trap composed of 14 places in 114 ms of which 12 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:02:58] [INFO ] Deduced a trap composed of 15 places in 110 ms of which 9 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:02:58] [INFO ] Deduced a trap composed of 16 places in 111 ms of which 9 ms to minimize.
[2026-05-25 21:02:58] [INFO ] Trap strengthening (SAT) tested/added 6/5 trap constraints in 767 ms
[2026-05-25 21:02:59] [INFO ] Added : 67 causal constraints over 15 iterations in 1120 ms. Result :sat
Minimization took 162 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 21:02:59] [INFO ] [Real]Absence check using 26 positive place invariants in 13 ms returned sat
[2026-05-25 21:02:59] [INFO ] [Real]Absence check using state equation in 93 ms returned sat
[2026-05-25 21:02:59] [INFO ] [Real]Added 40 Read/Feed constraints in 11 ms returned sat
[2026-05-25 21:02:59] [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 21:02:59] [INFO ] [Nat]Absence check using 26 positive place invariants in 15 ms returned sat
[2026-05-25 21:02:59] [INFO ] [Nat]Absence check using state equation in 102 ms returned sat
[2026-05-25 21:02:59] [INFO ] [Nat]Added 40 Read/Feed constraints in 16 ms returned sat
[2026-05-25 21:02:59] [INFO ] Computed and/alt/rep : 128/512/128 causal constraints (skipped 12 transitions) in 24 ms.
[2026-05-25 21:02:59] [INFO ] Added : 35 causal constraints over 7 iterations in 207 ms. Result :sat
Minimization took 81 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 21:02:59] [INFO ] [Real]Absence check using 26 positive place invariants in 12 ms returned sat
[2026-05-25 21:03:00] [INFO ] [Real]Absence check using state equation in 81 ms returned sat
[2026-05-25 21:03:00] [INFO ] [Real]Added 40 Read/Feed constraints in 8 ms returned sat
[2026-05-25 21:03:00] [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 21:03:00] [INFO ] [Nat]Absence check using 26 positive place invariants in 13 ms returned sat
[2026-05-25 21:03:00] [INFO ] [Nat]Absence check using state equation in 76 ms returned sat
[2026-05-25 21:03:00] [INFO ] [Nat]Added 40 Read/Feed constraints in 18 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:00] [INFO ] Deduced a trap composed of 12 places in 85 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:00] [INFO ] Deduced a trap composed of 12 places in 90 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:00] [INFO ] Deduced a trap composed of 12 places in 94 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:00] [INFO ] Deduced a trap composed of 12 places in 116 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:00] [INFO ] Deduced a trap composed of 6 places in 104 ms of which 15 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:00] [INFO ] Deduced a trap composed of 8 places in 94 ms of which 9 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:01] [INFO ] Deduced a trap composed of 8 places in 114 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:01] [INFO ] Deduced a trap composed of 8 places in 121 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:01] [INFO ] Deduced a trap composed of 8 places in 133 ms of which 11 ms to minimize.
[2026-05-25 21:03:01] [INFO ] Trap strengthening procedure managed to obtain unsat after adding 9 trap constraints in 1060 ms
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 21:03:01] [INFO ] [Real]Absence check using 26 positive place invariants in 18 ms returned sat
[2026-05-25 21:03:01] [INFO ] [Real]Absence check using state equation in 86 ms returned sat
[2026-05-25 21:03:01] [INFO ] [Real]Added 40 Read/Feed constraints in 8 ms returned sat
[2026-05-25 21:03:01] [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 21:03:01] [INFO ] [Nat]Absence check using 26 positive place invariants in 13 ms returned sat
[2026-05-25 21:03:01] [INFO ] [Nat]Absence check using state equation in 74 ms returned sat
[2026-05-25 21:03:01] [INFO ] [Nat]Added 40 Read/Feed constraints in 15 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:01] [INFO ] Deduced a trap composed of 9 places in 131 ms of which 12 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:01] [INFO ] Deduced a trap composed of 9 places in 100 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:02] [INFO ] Deduced a trap composed of 9 places in 109 ms of which 12 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:02] [INFO ] Deduced a trap composed of 13 places in 105 ms of which 12 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:02] [INFO ] Deduced a trap composed of 6 places in 90 ms of which 9 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:02] [INFO ] Deduced a trap composed of 13 places in 93 ms of which 9 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:02] [INFO ] Deduced a trap composed of 13 places in 102 ms of which 10 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:02] [INFO ] Deduced a trap composed of 13 places in 101 ms of which 10 ms to minimize.
[2026-05-25 21:03:02] [INFO ] Trap strengthening procedure managed to obtain unsat after adding 8 trap constraints in 915 ms
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 21:03:02] [INFO ] [Real]Absence check using 26 positive place invariants in 15 ms returned sat
[2026-05-25 21:03:02] [INFO ] [Real]Absence check using state equation in 80 ms returned sat
[2026-05-25 21:03:02] [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 21:03:02] [INFO ] [Nat]Absence check using 26 positive place invariants in 13 ms returned sat
[2026-05-25 21:03:02] [INFO ] [Nat]Absence check using state equation in 69 ms returned sat
[2026-05-25 21:03:02] [INFO ] [Nat]Added 40 Read/Feed constraints in 23 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:03] [INFO ] Deduced a trap composed of 10 places in 103 ms of which 12 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:03] [INFO ] Deduced a trap composed of 13 places in 76 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:03] [INFO ] Deduced a trap composed of 6 places in 70 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:03] [INFO ] Deduced a trap composed of 13 places in 71 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:03] [INFO ] Deduced a trap composed of 13 places in 75 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:03] [INFO ] Deduced a trap composed of 13 places in 90 ms of which 10 ms to minimize.
[2026-05-25 21:03:03] [INFO ] Trap strengthening procedure managed to obtain unsat after adding 6 trap constraints in 598 ms
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 21:03:03] [INFO ] [Real]Absence check using 26 positive place invariants in 14 ms returned sat
[2026-05-25 21:03:03] [INFO ] [Real]Absence check using state equation in 88 ms returned sat
[2026-05-25 21:03:03] [INFO ] [Real]Added 40 Read/Feed constraints in 17 ms returned sat
[2026-05-25 21:03:03] [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 21:03:03] [INFO ] [Nat]Absence check using 26 positive place invariants in 14 ms returned sat
[2026-05-25 21:03:03] [INFO ] [Nat]Absence check using state equation in 86 ms returned sat
[2026-05-25 21:03:03] [INFO ] [Nat]Added 40 Read/Feed constraints in 35 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:03] [INFO ] Deduced a trap composed of 9 places in 97 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:04] [INFO ] Deduced a trap composed of 9 places in 93 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:04] [INFO ] Deduced a trap composed of 13 places in 59 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:04] [INFO ] Deduced a trap composed of 13 places in 68 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:04] [INFO ] Deduced a trap composed of 13 places in 82 ms of which 10 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:04] [INFO ] Deduced a trap composed of 13 places in 65 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:04] [INFO ] Deduced a trap composed of 13 places in 65 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:04] [INFO ] Deduced a trap composed of 6 places in 61 ms of which 5 ms to minimize.
[2026-05-25 21:03:04] [INFO ] Trap strengthening procedure managed to obtain unsat after adding 8 trap constraints in 680 ms
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 21:03:04] [INFO ] [Real]Absence check using 26 positive place invariants in 16 ms returned sat
[2026-05-25 21:03:04] [INFO ] [Real]Absence check using state equation in 89 ms returned sat
[2026-05-25 21:03:04] [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 21:03:04] [INFO ] [Nat]Absence check using 26 positive place invariants in 19 ms returned sat
[2026-05-25 21:03:04] [INFO ] [Nat]Absence check using state equation in 97 ms returned sat
[2026-05-25 21:03:04] [INFO ] [Nat]Added 40 Read/Feed constraints in 34 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:05] [INFO ] Deduced a trap composed of 9 places in 107 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:05] [INFO ] Deduced a trap composed of 9 places in 87 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:05] [INFO ] Deduced a trap composed of 9 places in 102 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:05] [INFO ] Deduced a trap composed of 13 places in 80 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:05] [INFO ] Deduced a trap composed of 13 places in 87 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:05] [INFO ] Deduced a trap composed of 13 places in 84 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:05] [INFO ] Deduced a trap composed of 6 places in 78 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:05] [INFO ] Deduced a trap composed of 13 places in 97 ms of which 8 ms to minimize.
[2026-05-25 21:03:05] [INFO ] Trap strengthening procedure managed to obtain unsat after adding 8 trap constraints in 920 ms
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 21:03:05] [INFO ] [Real]Absence check using 26 positive place invariants in 16 ms returned sat
[2026-05-25 21:03:05] [INFO ] [Real]Absence check using state equation in 82 ms returned sat
[2026-05-25 21:03:06] [INFO ] [Real]Added 40 Read/Feed constraints in 13 ms returned sat
[2026-05-25 21:03:06] [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 21:03:06] [INFO ] [Nat]Absence check using 26 positive place invariants in 15 ms returned sat
[2026-05-25 21:03:06] [INFO ] [Nat]Absence check using state equation in 89 ms returned sat
[2026-05-25 21:03:06] [INFO ] [Nat]Added 40 Read/Feed constraints in 23 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:06] [INFO ] Deduced a trap composed of 9 places in 97 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:06] [INFO ] Deduced a trap composed of 9 places in 101 ms of which 9 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:06] [INFO ] Deduced a trap composed of 13 places in 113 ms of which 9 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:06] [INFO ] Deduced a trap composed of 13 places in 80 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:06] [INFO ] Deduced a trap composed of 13 places in 91 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:06] [INFO ] Deduced a trap composed of 13 places in 97 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:06] [INFO ] Deduced a trap composed of 6 places in 65 ms of which 4 ms to minimize.
[2026-05-25 21:03:06] [INFO ] Trap strengthening procedure managed to obtain unsat after adding 7 trap constraints in 721 ms
Current structural bounds on expressions (after SMT) : Max Seen:[3, 1, 3, 3, 3, 12, 3, 12, 3] Max Struct:[3, 4, 4, 3, 3, 12, 3, 12, 3]
FORMULA LamportFastMutEx-COL-4-UpperBounds-15 3 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA LamportFastMutEx-COL-4-UpperBounds-13 12 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA LamportFastMutEx-COL-4-UpperBounds-08 3 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA LamportFastMutEx-COL-4-UpperBounds-07 12 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA LamportFastMutEx-COL-4-UpperBounds-06 3 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA LamportFastMutEx-COL-4-UpperBounds-05 3 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA LamportFastMutEx-COL-4-UpperBounds-00 3 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA LamportFastMutEx-COL-4-UpperBounds-03 4 TECHNIQUES TOPOLOGICAL PARIKH_WALK
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[1] Max Struct:[4]
Support contains 4 out of 102 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 102/102 places, 180/180 transitions.
Performed 4 Post agglomeration using F-continuation condition.Transition count delta: 4
Deduced a syphon composed of 4 places in 1 ms
Reduce places removed 4 places and 0 transitions.
Iterating global reduction 0 with 8 rules applied. Total rules applied 8 place count 98 transition count 176
Free-agglomeration rule (complex) applied 4 times.
Iterating global reduction 0 with 4 rules applied. Total rules applied 12 place count 98 transition count 172
Reduce places removed 4 places and 0 transitions.
Iterating post reduction 0 with 4 rules applied. Total rules applied 16 place count 94 transition count 172
Applied a total of 16 rules in 76 ms. Remains 94 /102 variables (removed 8) and now considering 172/180 (removed 8) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 93 ms. Remains : 94/102 places, 172/180 transitions.
[2026-05-25 21:03:07] [INFO ] Flow matrix only has 136 transitions (discarded 36 similar events)
// Phase 1: matrix 136 rows 94 cols
[2026-05-25 21:03:07] [INFO ] Computed 26 invariants in 14 ms
Current structural bounds on expressions (after invariants) : Max Seen:[1] Max Struct:[4]
RANDOM walk for 1000000 steps (2 resets) in 1766 ms. (565 steps per ms)
BEST_FIRST walk for 1000000 steps (2 resets) in 567 ms. (1760 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[1] Max Struct:[4]
[2026-05-25 21:03:09] [INFO ] Flow matrix only has 136 transitions (discarded 36 similar events)
[2026-05-25 21:03:09] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 21:03:09] [INFO ] [Real]Absence check using 26 positive place invariants in 12 ms returned sat
[2026-05-25 21:03:09] [INFO ] [Real]Absence check using state equation in 70 ms returned sat
[2026-05-25 21:03:09] [INFO ] State equation strengthened by 40 read => feed constraints.
[2026-05-25 21:03:09] [INFO ] [Real]Added 40 Read/Feed constraints in 8 ms returned sat
[2026-05-25 21:03:09] [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 21:03:09] [INFO ] [Nat]Absence check using 26 positive place invariants in 9 ms returned sat
[2026-05-25 21:03:09] [INFO ] [Nat]Absence check using state equation in 54 ms returned sat
[2026-05-25 21:03:09] [INFO ] [Nat]Added 40 Read/Feed constraints in 8 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:10] [INFO ] Deduced a trap composed of 14 places in 66 ms of which 5 ms to minimize.
[2026-05-25 21:03:10] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 79 ms
[2026-05-25 21:03:10] [INFO ] Computed and/alt/rep : 116/496/116 causal constraints (skipped 16 transitions) in 12 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:10] [INFO ] Deduced a trap composed of 10 places in 85 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:10] [INFO ] Deduced a trap composed of 14 places in 115 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:10] [INFO ] Deduced a trap composed of 21 places in 76 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:10] [INFO ] Deduced a trap composed of 14 places in 94 ms of which 7 ms to minimize.
[2026-05-25 21:03:10] [INFO ] Trap strengthening (SAT) tested/added 5/4 trap constraints in 432 ms
[2026-05-25 21:03:10] [INFO ] Added : 45 causal constraints over 9 iterations in 590 ms. Result :sat
Minimization took 108 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[1] Max Struct:[4]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[1] Max Struct:[4]
Support contains 4 out of 94 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 94/94 places, 172/172 transitions.
Applied a total of 0 rules in 9 ms. Remains 94 /94 variables (removed 0) and now considering 172/172 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 10 ms. Remains : 94/94 places, 172/172 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 94/94 places, 172/172 transitions.
Applied a total of 0 rules in 9 ms. Remains 94 /94 variables (removed 0) and now considering 172/172 (removed 0) transitions.
[2026-05-25 21:03:10] [INFO ] Flow matrix only has 136 transitions (discarded 36 similar events)
[2026-05-25 21:03:10] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 21:03:10] [INFO ] Implicit Places using invariants in 185 ms returned [62, 63, 64, 65]
Discarding 4 places :
Implicit Place search using SMT only with invariants took 188 ms to find 4 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 1 : 90/94 places, 172/172 transitions.
Applied a total of 0 rules in 13 ms. Remains 90 /90 variables (removed 0) and now considering 172/172 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 2 iterations and 218 ms. Remains : 90/94 places, 172/172 transitions.
[2026-05-25 21:03:10] [INFO ] Flow matrix only has 136 transitions (discarded 36 similar events)
// Phase 1: matrix 136 rows 90 cols
[2026-05-25 21:03:10] [INFO ] Computed 22 invariants in 3 ms
Current structural bounds on expressions (after invariants) : Max Seen:[1] Max Struct:[4]
RANDOM walk for 1000000 steps (2 resets) in 1582 ms. (631 steps per ms)
BEST_FIRST walk for 1000000 steps (2 resets) in 872 ms. (1145 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[1] Max Struct:[4]
[2026-05-25 21:03:13] [INFO ] Flow matrix only has 136 transitions (discarded 36 similar events)
[2026-05-25 21:03:13] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 21:03:13] [INFO ] [Real]Absence check using 22 positive place invariants in 7 ms returned sat
[2026-05-25 21:03:13] [INFO ] [Real]Absence check using state equation in 46 ms returned sat
[2026-05-25 21:03:13] [INFO ] State equation strengthened by 24 read => feed constraints.
[2026-05-25 21:03:13] [INFO ] [Real]Added 24 Read/Feed constraints in 4 ms returned sat
[2026-05-25 21:03:13] [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 21:03:13] [INFO ] [Nat]Absence check using 22 positive place invariants in 7 ms returned sat
[2026-05-25 21:03:13] [INFO ] [Nat]Absence check using state equation in 48 ms returned sat
[2026-05-25 21:03:13] [INFO ] [Nat]Added 24 Read/Feed constraints in 5 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:13] [INFO ] Deduced a trap composed of 14 places in 65 ms of which 7 ms to minimize.
[2026-05-25 21:03:13] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 77 ms
[2026-05-25 21:03:13] [INFO ] Computed and/alt/rep : 120/496/120 causal constraints (skipped 12 transitions) in 11 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:13] [INFO ] Deduced a trap composed of 9 places in 38 ms of which 4 ms to minimize.
[2026-05-25 21:03:13] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 64 ms
[2026-05-25 21:03:13] [INFO ] Added : 67 causal constraints over 14 iterations in 271 ms. Result :sat
Minimization took 162 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[1] Max Struct:[4]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[1] Max Struct:[4]
Support contains 4 out of 90 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 90/90 places, 172/172 transitions.
Applied a total of 0 rules in 13 ms. Remains 90 /90 variables (removed 0) and now considering 172/172 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 15 ms. Remains : 90/90 places, 172/172 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 90/90 places, 172/172 transitions.
Applied a total of 0 rules in 13 ms. Remains 90 /90 variables (removed 0) and now considering 172/172 (removed 0) transitions.
[2026-05-25 21:03:14] [INFO ] Flow matrix only has 136 transitions (discarded 36 similar events)
[2026-05-25 21:03:14] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 21:03:14] [INFO ] Implicit Places using invariants in 175 ms returned []
[2026-05-25 21:03:14] [INFO ] Flow matrix only has 136 transitions (discarded 36 similar events)
[2026-05-25 21:03:14] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 21:03:14] [INFO ] State equation strengthened by 24 read => feed constraints.
[2026-05-25 21:03:14] [INFO ] Implicit Places using invariants and state equation in 351 ms returned []
Implicit Place search using SMT with State Equation took 532 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-25 21:03:14] [INFO ] Redundant transitions in 10 ms returned []
Running 168 sub problems to find dead transitions.
[2026-05-25 21:03:14] [INFO ] Flow matrix only has 136 transitions (discarded 36 similar events)
[2026-05-25 21:03:14] [INFO ] Invariant cache hit.
[2026-05-25 21:03:14] [INFO ] State equation strengthened by 24 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/90 variables, 22/22 constraints. Problems are: Problem set: 0 solved, 168 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:15] [INFO ] Deduced a trap composed of 9 places in 71 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:15] [INFO ] Deduced a trap composed of 9 places in 69 ms of which 9 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:15] [INFO ] Deduced a trap composed of 9 places in 69 ms of which 7 ms to minimize.
Problem TDEAD4 is UNSAT
Problem TDEAD5 is UNSAT
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:15] [INFO ] Deduced a trap composed of 12 places in 83 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:16] [INFO ] Deduced a trap composed of 9 places in 108 ms of which 10 ms to minimize.
Problem TDEAD6 is UNSAT
Problem TDEAD7 is UNSAT
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:16] [INFO ] Deduced a trap composed of 6 places in 62 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:16] [INFO ] Deduced a trap composed of 6 places in 52 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:16] [INFO ] Deduced a trap composed of 12 places in 63 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:16] [INFO ] Deduced a trap composed of 12 places in 99 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:16] [INFO ] Deduced a trap composed of 9 places in 96 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:16] [INFO ] Deduced a trap composed of 9 places in 93 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:16] [INFO ] Deduced a trap composed of 9 places in 91 ms of which 6 ms to minimize.
Problem TDEAD28 is UNSAT
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:16] [INFO ] Deduced a trap composed of 9 places in 111 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:16] [INFO ] Deduced a trap composed of 14 places in 77 ms of which 6 ms to minimize.
Problem TDEAD33 is UNSAT
Problem TDEAD38 is UNSAT
Problem TDEAD43 is UNSAT
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:17] [INFO ] Deduced a trap composed of 7 places in 26 ms of which 2 ms to minimize.
Problem TDEAD44 is UNSAT
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:17] [INFO ] Deduced a trap composed of 7 places in 29 ms of which 3 ms to minimize.
Problem TDEAD45 is UNSAT
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:17] [INFO ] Deduced a trap composed of 7 places in 27 ms of which 3 ms to minimize.
Problem TDEAD46 is UNSAT
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:17] [INFO ] Deduced a trap composed of 7 places in 28 ms of which 3 ms to minimize.
Problem TDEAD47 is UNSAT
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:17] [INFO ] Deduced a trap composed of 21 places in 73 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:17] [INFO ] Deduced a trap composed of 21 places in 66 ms of which 6 ms to minimize.
Problem TDEAD4 is UNSAT
Problem TDEAD5 is UNSAT
Problem TDEAD6 is UNSAT
Problem TDEAD7 is UNSAT
Problem TDEAD28 is UNSAT
Problem TDEAD33 is UNSAT
Problem TDEAD38 is UNSAT
Problem TDEAD43 is UNSAT
Problem TDEAD44 is UNSAT
Problem TDEAD45 is UNSAT
Problem TDEAD46 is UNSAT
Problem TDEAD47 is UNSAT
Problem TDEAD61 is UNSAT
Problem TDEAD67 is UNSAT
Problem TDEAD73 is UNSAT
Problem TDEAD79 is UNSAT
Problem TDEAD84 is UNSAT
Problem TDEAD92 is UNSAT
Problem TDEAD144 is UNSAT
Problem TDEAD146 is UNSAT
Problem TDEAD148 is UNSAT
Problem TDEAD150 is UNSAT
At refinement iteration 1 (INCLUDED_ONLY) 0/90 variables, 20/42 constraints. Problems are: Problem set: 22 solved, 146 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:17] [INFO ] Deduced a trap composed of 6 places in 36 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:17] [INFO ] Deduced a trap composed of 6 places in 32 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:17] [INFO ] Deduced a trap composed of 6 places in 34 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:17] [INFO ] Deduced a trap composed of 13 places in 54 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:17] [INFO ] Deduced a trap composed of 13 places in 60 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:17] [INFO ] Deduced a trap composed of 13 places in 86 ms of which 9 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:17] [INFO ] Deduced a trap composed of 13 places in 55 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:17] [INFO ] Deduced a trap composed of 15 places in 103 ms of which 9 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:18] [INFO ] Deduced a trap composed of 15 places in 79 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:18] [INFO ] Deduced a trap composed of 15 places in 79 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:18] [INFO ] Deduced a trap composed of 15 places in 91 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:18] [INFO ] Deduced a trap composed of 15 places in 87 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:18] [INFO ] Deduced a trap composed of 15 places in 89 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:18] [INFO ] Deduced a trap composed of 21 places in 83 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:18] [INFO ] Deduced a trap composed of 21 places in 64 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:18] [INFO ] Deduced a trap composed of 12 places in 93 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:18] [INFO ] Deduced a trap composed of 12 places in 97 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:19] [INFO ] Deduced a trap composed of 12 places in 86 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:19] [INFO ] Deduced a trap composed of 12 places in 87 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:19] [INFO ] Deduced a trap composed of 12 places in 86 ms of which 8 ms to minimize.
Problem TDEAD88 is UNSAT
At refinement iteration 2 (INCLUDED_ONLY) 0/90 variables, 20/62 constraints. Problems are: Problem set: 23 solved, 145 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:19] [INFO ] Deduced a trap composed of 15 places in 68 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:19] [INFO ] Deduced a trap composed of 15 places in 73 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:19] [INFO ] Deduced a trap composed of 12 places in 114 ms of which 13 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:19] [INFO ] Deduced a trap composed of 12 places in 110 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:20] [INFO ] Deduced a trap composed of 14 places in 73 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:20] [INFO ] Deduced a trap composed of 14 places in 113 ms of which 10 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:20] [INFO ] Deduced a trap composed of 6 places in 42 ms of which 3 ms to minimize.
Problem TDEAD80 is UNSAT
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:20] [INFO ] Deduced a trap composed of 14 places in 114 ms of which 15 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:20] [INFO ] Deduced a trap composed of 13 places in 72 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:20] [INFO ] Deduced a trap composed of 12 places in 96 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:20] [INFO ] Deduced a trap composed of 12 places in 87 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:20] [INFO ] Deduced a trap composed of 21 places in 65 ms of which 8 ms to minimize.
At refinement iteration 3 (INCLUDED_ONLY) 0/90 variables, 12/74 constraints. Problems are: Problem set: 24 solved, 144 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:21] [INFO ] Deduced a trap composed of 14 places in 75 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:21] [INFO ] Deduced a trap composed of 14 places in 96 ms of which 13 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:21] [INFO ] Deduced a trap composed of 14 places in 70 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:22] [INFO ] Deduced a trap composed of 21 places in 91 ms of which 13 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/90 variables, 4/78 constraints. Problems are: Problem set: 24 solved, 144 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:22] [INFO ] Deduced a trap composed of 15 places in 86 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:22] [INFO ] Deduced a trap composed of 15 places in 96 ms of which 9 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:22] [INFO ] Deduced a trap composed of 14 places in 98 ms of which 13 ms to minimize.
At refinement iteration 5 (INCLUDED_ONLY) 0/90 variables, 3/81 constraints. Problems are: Problem set: 24 solved, 144 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/90 variables, 0/81 constraints. Problems are: Problem set: 24 solved, 144 unsolved
At refinement iteration 7 (OVERLAPS) 136/226 variables, 90/171 constraints. Problems are: Problem set: 24 solved, 144 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/226 variables, 24/195 constraints. Problems are: Problem set: 24 solved, 144 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:25] [INFO ] Deduced a trap composed of 21 places in 107 ms of which 13 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:25] [INFO ] Deduced a trap composed of 15 places in 87 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:25] [INFO ] Deduced a trap composed of 21 places in 52 ms of which 3 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/226 variables, 3/198 constraints. Problems are: Problem set: 24 solved, 144 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:27] [INFO ] Deduced a trap composed of 14 places in 103 ms of which 8 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/226 variables, 1/199 constraints. Problems are: Problem set: 24 solved, 144 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:28] [INFO ] Deduced a trap composed of 12 places in 73 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:28] [INFO ] Deduced a trap composed of 12 places in 94 ms of which 11 ms to minimize.
At refinement iteration 11 (INCLUDED_ONLY) 0/226 variables, 2/201 constraints. Problems are: Problem set: 24 solved, 144 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:30] [INFO ] Deduced a trap composed of 15 places in 94 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:30] [INFO ] Deduced a trap composed of 15 places in 103 ms of which 7 ms to minimize.
At refinement iteration 12 (INCLUDED_ONLY) 0/226 variables, 2/203 constraints. Problems are: Problem set: 24 solved, 144 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:31] [INFO ] Deduced a trap composed of 15 places in 102 ms of which 9 ms to minimize.
At refinement iteration 13 (INCLUDED_ONLY) 0/226 variables, 1/204 constraints. Problems are: Problem set: 24 solved, 144 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/226 variables, 0/204 constraints. Problems are: Problem set: 24 solved, 144 unsolved
At refinement iteration 15 (OVERLAPS) 0/226 variables, 0/204 constraints. Problems are: Problem set: 24 solved, 144 unsolved
No progress, stopping.
After SMT solving in domain Real declared 226/226 variables, and 204 constraints, problems are : Problem set: 24 solved, 144 unsolved in 23531 ms.
Refiners :[Positive P Invariants (semi-flows): 22/22 constraints, State Equation: 90/90 constraints, ReadFeed: 24/24 constraints, PredecessorRefiner: 168/168 constraints, Known Traps: 68/68 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 24 solved, 144 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/86 variables, 6/6 constraints. Problems are: Problem set: 24 solved, 144 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/86 variables, 48/54 constraints. Problems are: Problem set: 24 solved, 144 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/86 variables, 0/54 constraints. Problems are: Problem set: 24 solved, 144 unsolved
At refinement iteration 3 (OVERLAPS) 4/90 variables, 16/70 constraints. Problems are: Problem set: 24 solved, 144 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/90 variables, 20/90 constraints. Problems are: Problem set: 24 solved, 144 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/90 variables, 0/90 constraints. Problems are: Problem set: 24 solved, 144 unsolved
At refinement iteration 6 (OVERLAPS) 136/226 variables, 90/180 constraints. Problems are: Problem set: 24 solved, 144 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/226 variables, 24/204 constraints. Problems are: Problem set: 24 solved, 144 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/226 variables, 144/348 constraints. Problems are: Problem set: 24 solved, 144 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:43] [INFO ] Deduced a trap composed of 14 places in 120 ms of which 13 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:43] [INFO ] Deduced a trap composed of 14 places in 122 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:44] [INFO ] Deduced a trap composed of 15 places in 94 ms of which 6 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/226 variables, 3/351 constraints. Problems are: Problem set: 24 solved, 144 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:47] [INFO ] Deduced a trap composed of 15 places in 123 ms of which 9 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:48] [INFO ] Deduced a trap composed of 14 places in 104 ms of which 13 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/226 variables, 2/353 constraints. Problems are: Problem set: 24 solved, 144 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:52] [INFO ] Deduced a trap composed of 15 places in 78 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:52] [INFO ] Deduced a trap composed of 14 places in 88 ms of which 10 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:52] [INFO ] Deduced a trap composed of 14 places in 84 ms of which 10 ms to minimize.
At refinement iteration 11 (INCLUDED_ONLY) 0/226 variables, 3/356 constraints. Problems are: Problem set: 24 solved, 144 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:03:56] [INFO ] Deduced a trap along path composed of 4 places in 32 ms of which 4 ms to minimize.
At refinement iteration 12 (INCLUDED_ONLY) 0/226 variables, 1/357 constraints. Problems are: Problem set: 24 solved, 144 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:04:03] [INFO ] Deduced a trap composed of 14 places in 94 ms of which 9 ms to minimize.
At refinement iteration 13 (INCLUDED_ONLY) 0/226 variables, 1/358 constraints. Problems are: Problem set: 24 solved, 144 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:04:07] [INFO ] Deduced a trap composed of 15 places in 64 ms of which 7 ms to minimize.
At refinement iteration 14 (INCLUDED_ONLY) 0/226 variables, 1/359 constraints. Problems are: Problem set: 24 solved, 144 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 226/226 variables, and 359 constraints, problems are : Problem set: 24 solved, 144 unsolved in 30026 ms.
Refiners :[Positive P Invariants (semi-flows): 22/22 constraints, State Equation: 90/90 constraints, ReadFeed: 24/24 constraints, PredecessorRefiner: 144/168 constraints, Known Traps: 78/78 constraints, Known Traps Along Path: 1/1 constraints]
After SMT, in 53722ms problems are : Problem set: 24 solved, 144 unsolved
Search for dead transitions found 24 dead transitions in 53736ms
Found 24 dead transitions using SMT.
Drop transitions (Dead Transitions using SMT only with invariants) removed 24 transitions
Dead transitions reduction (with SMT) removed 24 transitions
Starting structural reductions in REACHABILITY mode, iteration 1 : 90/90 places, 148/172 transitions.
Applied a total of 0 rules in 11 ms. Remains 90 /90 variables (removed 0) and now considering 148/148 (removed 0) transitions.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-25 21:04:08] [INFO ] Redundant transitions in 8 ms returned []
Finished structural reductions in REACHABILITY mode , in 2 iterations and 54339 ms. Remains : 90/90 places, 148/172 transitions.
[2026-05-25 21:04:08] [INFO ] Flow matrix only has 120 transitions (discarded 28 similar events)
// Phase 1: matrix 120 rows 90 cols
[2026-05-25 21:04:08] [INFO ] Computed 22 invariants in 3 ms
Current structural bounds on expressions (after invariants) : Max Seen:[1] Max Struct:[4]
RANDOM walk for 1000000 steps (2 resets) in 1637 ms. (610 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 503 ms. (1984 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[1] Max Struct:[4]
[2026-05-25 21:04:10] [INFO ] Flow matrix only has 120 transitions (discarded 28 similar events)
[2026-05-25 21:04:10] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 21:04:10] [INFO ] [Real]Absence check using 22 positive place invariants in 8 ms returned sat
[2026-05-25 21:04:10] [INFO ] [Real]Absence check using state equation in 50 ms returned sat
[2026-05-25 21:04:10] [INFO ] State equation strengthened by 20 read => feed constraints.
[2026-05-25 21:04:10] [INFO ] [Real]Added 20 Read/Feed constraints in 5 ms returned sat
[2026-05-25 21:04:10] [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 21:04:10] [INFO ] [Nat]Absence check using 22 positive place invariants in 7 ms returned sat
[2026-05-25 21:04:10] [INFO ] [Nat]Absence check using state equation in 49 ms returned sat
[2026-05-25 21:04:10] [INFO ] [Nat]Added 20 Read/Feed constraints in 5 ms returned sat
[2026-05-25 21:04:10] [INFO ] Computed and/alt/rep : 104/420/104 causal constraints (skipped 12 transitions) in 14 ms.
[2026-05-25 21:04:11] [INFO ] Added : 37 causal constraints over 8 iterations in 139 ms. Result :sat
Minimization took 75 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[1] Max Struct:[4]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[1] Max Struct:[4]
Support contains 4 out of 90 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 90/90 places, 148/148 transitions.
Applied a total of 0 rules in 8 ms. Remains 90 /90 variables (removed 0) and now considering 148/148 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 8 ms. Remains : 90/90 places, 148/148 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 90/90 places, 148/148 transitions.
Applied a total of 0 rules in 10 ms. Remains 90 /90 variables (removed 0) and now considering 148/148 (removed 0) transitions.
[2026-05-25 21:04:11] [INFO ] Flow matrix only has 120 transitions (discarded 28 similar events)
[2026-05-25 21:04:11] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 21:04:11] [INFO ] Implicit Places using invariants in 196 ms returned []
[2026-05-25 21:04:11] [INFO ] Flow matrix only has 120 transitions (discarded 28 similar events)
[2026-05-25 21:04:11] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 21:04:11] [INFO ] State equation strengthened by 20 read => feed constraints.
[2026-05-25 21:04:11] [INFO ] Implicit Places using invariants and state equation in 296 ms returned []
Implicit Place search using SMT with State Equation took 495 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-25 21:04:11] [INFO ] Redundant transitions in 8 ms returned []
Running 144 sub problems to find dead transitions.
[2026-05-25 21:04:11] [INFO ] Flow matrix only has 120 transitions (discarded 28 similar events)
[2026-05-25 21:04:11] [INFO ] Invariant cache hit.
[2026-05-25 21:04:11] [INFO ] State equation strengthened by 20 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/86 variables, 6/6 constraints. Problems are: Problem set: 0 solved, 144 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/86 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 144 unsolved
At refinement iteration 2 (OVERLAPS) 4/90 variables, 16/22 constraints. Problems are: Problem set: 0 solved, 144 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:04:13] [INFO ] Deduced a trap composed of 6 places in 95 ms of which 9 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:04:13] [INFO ] Deduced a trap composed of 6 places in 101 ms of which 9 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:04:13] [INFO ] Deduced a trap composed of 6 places in 108 ms of which 9 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:04:13] [INFO ] Deduced a trap composed of 6 places in 101 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:04:14] [INFO ] Deduced a trap composed of 6 places in 92 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:04:14] [INFO ] Deduced a trap composed of 9 places in 108 ms of which 12 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:04:14] [INFO ] Deduced a trap composed of 9 places in 77 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:04:14] [INFO ] Deduced a trap composed of 10 places in 75 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:04:14] [INFO ] Deduced a trap composed of 12 places in 52 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:04:14] [INFO ] Deduced a trap composed of 12 places in 43 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:04:14] [INFO ] Deduced a trap composed of 10 places in 68 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:04:14] [INFO ] Deduced a trap composed of 9 places in 77 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:04:14] [INFO ] Deduced a trap composed of 12 places in 50 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:04:14] [INFO ] Deduced a trap composed of 9 places in 61 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:04:14] [INFO ] Deduced a trap composed of 9 places in 104 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:04:15] [INFO ] Deduced a trap composed of 9 places in 110 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:04:15] [INFO ] Deduced a trap composed of 15 places in 115 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:04:15] [INFO ] Deduced a trap composed of 7 places in 40 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:04:15] [INFO ] Deduced a trap composed of 15 places in 107 ms of which 12 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:04:15] [INFO ] Deduced a trap composed of 15 places in 92 ms of which 5 ms to minimize.
At refinement iteration 3 (INCLUDED_ONLY) 0/90 variables, 20/42 constraints. Problems are: Problem set: 0 solved, 144 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:04:16] [INFO ] Deduced a trap composed of 12 places in 87 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:04:16] [INFO ] Deduced a trap composed of 9 places in 90 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:04:16] [INFO ] Deduced a trap composed of 10 places in 102 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:04:16] [INFO ] Deduced a trap composed of 14 places in 107 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:04:16] [INFO ] Deduced a trap composed of 15 places in 112 ms of which 10 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:04:16] [INFO ] Deduced a trap composed of 15 places in 119 ms of which 12 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:04:16] [INFO ] Deduced a trap composed of 21 places in 107 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:04:17] [INFO ] Deduced a trap composed of 21 places in 85 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:04:17] [INFO ] Deduced a trap composed of 7 places in 86 ms of which 9 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:04:17] [INFO ] Deduced a trap composed of 21 places in 69 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:04:17] [INFO ] Deduced a trap composed of 12 places in 87 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:04:17] [INFO ] Deduced a trap composed of 12 places in 87 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:04:17] [INFO ] Deduced a trap composed of 12 places in 102 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:04:17] [INFO ] Deduced a trap composed of 12 places in 102 ms of which 10 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:04:17] [INFO ] Deduced a trap composed of 13 places in 108 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:04:17] [INFO ] Deduced a trap composed of 13 places in 109 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:04:18] [INFO ] Deduced a trap composed of 7 places in 37 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:04:18] [INFO ] Deduced a trap composed of 7 places in 40 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:04:18] [INFO ] Deduced a trap composed of 12 places in 61 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:04:18] [INFO ] Deduced a trap composed of 21 places in 118 ms of which 12 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/90 variables, 20/62 constraints. Problems are: Problem set: 0 solved, 144 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:04:18] [INFO ] Deduced a trap composed of 12 places in 95 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:04:18] [INFO ] Deduced a trap composed of 15 places in 105 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:04:18] [INFO ] Deduced a trap composed of 15 places in 119 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:04:18] [INFO ] Deduced a trap composed of 9 places in 64 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:04:19] [INFO ] Deduced a trap composed of 12 places in 74 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:04:19] [INFO ] Deduced a trap composed of 12 places in 79 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:04:19] [INFO ] Deduced a trap composed of 12 places in 106 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:04:19] [INFO ] Deduced a trap composed of 14 places in 117 ms of which 14 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:04:19] [INFO ] Deduced a trap composed of 15 places in 119 ms of which 15 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:04:19] [INFO ] Deduced a trap composed of 21 places in 79 ms of which 8 ms to minimize.
At refinement iteration 5 (INCLUDED_ONLY) 0/90 variables, 10/72 constraints. Problems are: Problem set: 0 solved, 144 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:04:20] [INFO ] Deduced a trap composed of 14 places in 106 ms of which 10 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:04:20] [INFO ] Deduced a trap composed of 14 places in 117 ms of which 13 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:04:20] [INFO ] Deduced a trap composed of 14 places in 124 ms of which 13 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:04:21] [INFO ] Deduced a trap composed of 21 places in 81 ms of which 11 ms to minimize.
At refinement iteration 6 (INCLUDED_ONLY) 0/90 variables, 4/76 constraints. Problems are: Problem set: 0 solved, 144 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:04:21] [INFO ] Deduced a trap composed of 15 places in 97 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:04:22] [INFO ] Deduced a trap composed of 15 places in 107 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:04:22] [INFO ] Deduced a trap composed of 12 places in 90 ms of which 12 ms to minimize.
At refinement iteration 7 (INCLUDED_ONLY) 0/90 variables, 3/79 constraints. Problems are: Problem set: 0 solved, 144 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:04:23] [INFO ] Deduced a trap composed of 14 places in 96 ms of which 12 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:04:23] [INFO ] Deduced a trap composed of 21 places in 98 ms of which 10 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:04:23] [INFO ] Deduced a trap composed of 21 places in 91 ms of which 9 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:04:23] [INFO ] Deduced a trap composed of 15 places in 103 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:04:23] [INFO ] Deduced a trap composed of 15 places in 112 ms of which 6 ms to minimize.
At refinement iteration 8 (INCLUDED_ONLY) 0/90 variables, 5/84 constraints. Problems are: Problem set: 0 solved, 144 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/90 variables, 0/84 constraints. Problems are: Problem set: 0 solved, 144 unsolved
At refinement iteration 10 (OVERLAPS) 120/210 variables, 90/174 constraints. Problems are: Problem set: 0 solved, 144 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/210 variables, 20/194 constraints. Problems are: Problem set: 0 solved, 144 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/210 variables, 0/194 constraints. Problems are: Problem set: 0 solved, 144 unsolved
At refinement iteration 13 (OVERLAPS) 0/210 variables, 0/194 constraints. Problems are: Problem set: 0 solved, 144 unsolved
No progress, stopping.
After SMT solving in domain Real declared 210/210 variables, and 194 constraints, problems are : Problem set: 0 solved, 144 unsolved in 18755 ms.
Refiners :[Positive P Invariants (semi-flows): 22/22 constraints, State Equation: 90/90 constraints, ReadFeed: 20/20 constraints, PredecessorRefiner: 144/144 constraints, Known Traps: 62/62 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 144 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/86 variables, 6/6 constraints. Problems are: Problem set: 0 solved, 144 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/86 variables, 40/46 constraints. Problems are: Problem set: 0 solved, 144 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/86 variables, 0/46 constraints. Problems are: Problem set: 0 solved, 144 unsolved
At refinement iteration 3 (OVERLAPS) 4/90 variables, 16/62 constraints. Problems are: Problem set: 0 solved, 144 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/90 variables, 22/84 constraints. Problems are: Problem set: 0 solved, 144 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:04:31] [INFO ] Deduced a trap composed of 14 places in 97 ms of which 13 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:04:32] [INFO ] Deduced a trap composed of 15 places in 115 ms of which 12 ms to minimize.
At refinement iteration 5 (INCLUDED_ONLY) 0/90 variables, 2/86 constraints. Problems are: Problem set: 0 solved, 144 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:04:32] [INFO ] Deduced a trap composed of 15 places in 101 ms of which 10 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:04:32] [INFO ] Deduced a trap composed of 14 places in 115 ms of which 12 ms to minimize.
At refinement iteration 6 (INCLUDED_ONLY) 0/90 variables, 2/88 constraints. Problems are: Problem set: 0 solved, 144 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/90 variables, 0/88 constraints. Problems are: Problem set: 0 solved, 144 unsolved
At refinement iteration 8 (OVERLAPS) 120/210 variables, 90/178 constraints. Problems are: Problem set: 0 solved, 144 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/210 variables, 20/198 constraints. Problems are: Problem set: 0 solved, 144 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/210 variables, 144/342 constraints. Problems are: Problem set: 0 solved, 144 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:04:36] [INFO ] Deduced a trap composed of 14 places in 58 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:04:37] [INFO ] Deduced a trap composed of 15 places in 60 ms of which 8 ms to minimize.
At refinement iteration 11 (INCLUDED_ONLY) 0/210 variables, 2/344 constraints. Problems are: Problem set: 0 solved, 144 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:04:38] [INFO ] Deduced a trap composed of 14 places in 68 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:04:39] [INFO ] Deduced a trap composed of 14 places in 65 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:04:39] [INFO ] Deduced a trap composed of 15 places in 65 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:04:39] [INFO ] Deduced a trap composed of 15 places in 59 ms of which 4 ms to minimize.
At refinement iteration 12 (INCLUDED_ONLY) 0/210 variables, 4/348 constraints. Problems are: Problem set: 0 solved, 144 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:04:44] [INFO ] Deduced a trap composed of 14 places in 89 ms of which 12 ms to minimize.
At refinement iteration 13 (INCLUDED_ONLY) 0/210 variables, 1/349 constraints. Problems are: Problem set: 0 solved, 144 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:04:46] [INFO ] Deduced a trap composed of 14 places in 105 ms of which 12 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:04:46] [INFO ] Deduced a trap composed of 14 places in 113 ms of which 13 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:04:46] [INFO ] Deduced a trap composed of 15 places in 106 ms of which 7 ms to minimize.
At refinement iteration 14 (INCLUDED_ONLY) 0/210 variables, 3/352 constraints. Problems are: Problem set: 0 solved, 144 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:04:51] [INFO ] Deduced a trap along path composed of 4 places in 43 ms of which 2 ms to minimize.
At refinement iteration 15 (INCLUDED_ONLY) 0/210 variables, 1/353 constraints. Problems are: Problem set: 0 solved, 144 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 210/210 variables, and 353 constraints, problems are : Problem set: 0 solved, 144 unsolved in 30017 ms.
Refiners :[Positive P Invariants (semi-flows): 22/22 constraints, State Equation: 90/90 constraints, ReadFeed: 20/20 constraints, PredecessorRefiner: 144/144 constraints, Known Traps: 76/76 constraints, Known Traps Along Path: 1/1 constraints]
After SMT, in 48845ms problems are : Problem set: 0 solved, 144 unsolved
Search for dead transitions found 0 dead transitions in 48849ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 49370 ms. Remains : 90/90 places, 148/148 transitions.
[2026-05-25 21:05:00] [INFO ] Flatten gal took : 104 ms
[2026-05-25 21:05:00] [INFO ] Flatten gal took : 50 ms
[2026-05-25 21:05:00] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality14199621311460453860.gal : 22 ms
[2026-05-25 21:05:01] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality7365263650481707575.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/ReachabilityCardinality14199621311460453860.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality7365263650481707575.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...329
RANDOM walk for 40000 steps (8 resets) in 1183 ms. (33 steps per ms) remains 2/2 properties
Loading property file /tmp/ReachabilityCardinality7365263650481707575.prop.
SDD proceeding with computation,2 properties remain. new max is 4
SDD size :1 after 3
SDD proceeding with computation,2 properties remain. new max is 8
SDD size :3 after 6
SDD proceeding with computation,2 properties remain. new max is 16
SDD size :6 after 9
SDD proceeding with computation,2 properties remain. new max is 32
SDD size :9 after 26
SDD proceeding with computation,2 properties remain. new max is 64
SDD size :26 after 54
SDD proceeding with computation,2 properties remain. new max is 128
SDD size :54 after 100
BEST_FIRST walk for 40002 steps (8 resets) in 326 ms. (122 steps per ms) remains 2/2 properties
SDD proceeding with computation,2 properties remain. new max is 256
SDD size :100 after 220
SDD proceeding with computation,2 properties remain. new max is 512
SDD size :220 after 1151
BEST_FIRST walk for 40001 steps (8 resets) in 385 ms. (103 steps per ms) remains 2/2 properties
SDD proceeding with computation,2 properties remain. new max is 1024
SDD size :1151 after 2192
SDD proceeding with computation,2 properties remain. new max is 2048
SDD size :2192 after 6102
SDD proceeding with computation,2 properties remain. new max is 4096
SDD size :6102 after 38886
SDD proceeding with computation,2 properties remain. new max is 8192
SDD size :38886 after 74567
Interrupted probabilistic random walk after 691957 steps, run timeout after 3001 ms. (steps per millisecond=230 ) properties seen :0 out of 2
Probabilistic random walk after 691957 steps, saw 177569 distinct states, run finished after 3005 ms. (steps per millisecond=230 ) properties seen :0
[2026-05-25 21:05:04] [INFO ] Flow matrix only has 120 transitions (discarded 28 similar events)
[2026-05-25 21:05:04] [INFO ] Invariant cache hit.
[2026-05-25 21:05:04] [INFO ] State equation strengthened by 20 read => feed constraints.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/4 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 1 (OVERLAPS) 68/72 variables, 16/16 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/72 variables, 0/16 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 3 (OVERLAPS) 120/192 variables, 72/88 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/192 variables, 20/108 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/192 variables, 0/108 constraints. Problems are: Problem set: 0 solved, 2 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (OVERLAPS) 18/210 variables, 18/126 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/210 variables, 6/132 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/210 variables, 0/132 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 9 (OVERLAPS) 0/210 variables, 0/132 constraints. Problems are: Problem set: 0 solved, 2 unsolved
No progress, stopping.
After SMT solving in domain Real declared 210/210 variables, and 132 constraints, problems are : Problem set: 0 solved, 2 unsolved in 162 ms.
Refiners :[Positive P Invariants (semi-flows): 22/22 constraints, State Equation: 90/90 constraints, ReadFeed: 20/20 constraints, PredecessorRefiner: 2/2 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 2 unsolved
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/4 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 1 (OVERLAPS) 68/72 variables, 16/16 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/72 variables, 0/16 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 3 (OVERLAPS) 120/192 variables, 72/88 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/192 variables, 20/108 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/192 variables, 0/108 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 6 (OVERLAPS) 18/210 variables, 18/126 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/210 variables, 6/132 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/210 variables, 2/134 constraints. Problems are: Problem set: 0 solved, 2 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:05:04] [INFO ] Deduced a trap composed of 14 places in 78 ms of which 10 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:05:04] [INFO ] Deduced a trap composed of 14 places in 90 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:05:04] [INFO ] Deduced a trap composed of 14 places in 61 ms of which 5 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/210 variables, 3/137 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/210 variables, 0/137 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 11 (OVERLAPS) 0/210 variables, 0/137 constraints. Problems are: Problem set: 0 solved, 2 unsolved
No progress, stopping.
SDD proceeding with computation,2 properties remain. new max is 16384
After SMT solving in domain Int declared 210/210 variables, and 137 constraints, problems are : Problem set: 0 solved, 2 unsolved in 487 ms.
Refiners :[Positive P Invariants (semi-flows): 22/22 constraints, State Equation: 90/90 constraints, ReadFeed: 20/20 constraints, PredecessorRefiner: 2/2 constraints, Known Traps: 3/3 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 658ms problems are : Problem set: 0 solved, 2 unsolved
SDD size :74567 after 266615
Parikh walk visited 0 properties in 233 ms.
Support contains 4 out of 90 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 90/90 places, 148/148 transitions.
Applied a total of 0 rules in 7 ms. Remains 90 /90 variables (removed 0) and now considering 148/148 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 7 ms. Remains : 90/90 places, 148/148 transitions.
RANDOM walk for 40000 steps (8 resets) in 155 ms. (256 steps per ms) remains 2/2 properties
BEST_FIRST walk for 40004 steps (8 resets) in 100 ms. (396 steps per ms) remains 2/2 properties
BEST_FIRST walk for 40004 steps (8 resets) in 73 ms. (540 steps per ms) remains 2/2 properties
SDD proceeding with computation,2 properties remain. new max is 32768
SDD size :748706 after 1.01697e+06
Interrupted probabilistic random walk after 776826 steps, run timeout after 3001 ms. (steps per millisecond=258 ) properties seen :0 out of 2
Probabilistic random walk after 776826 steps, saw 196341 distinct states, run finished after 3001 ms. (steps per millisecond=258 ) properties seen :0
[2026-05-25 21:05:08] [INFO ] Flow matrix only has 120 transitions (discarded 28 similar events)
[2026-05-25 21:05:08] [INFO ] Invariant cache hit.
[2026-05-25 21:05:08] [INFO ] State equation strengthened by 20 read => feed constraints.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/4 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 1 (OVERLAPS) 68/72 variables, 16/16 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/72 variables, 0/16 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 3 (OVERLAPS) 120/192 variables, 72/88 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/192 variables, 20/108 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/192 variables, 0/108 constraints. Problems are: Problem set: 0 solved, 2 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (OVERLAPS) 18/210 variables, 18/126 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/210 variables, 6/132 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/210 variables, 0/132 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 9 (OVERLAPS) 0/210 variables, 0/132 constraints. Problems are: Problem set: 0 solved, 2 unsolved
No progress, stopping.
After SMT solving in domain Real declared 210/210 variables, and 132 constraints, problems are : Problem set: 0 solved, 2 unsolved in 150 ms.
Refiners :[Positive P Invariants (semi-flows): 22/22 constraints, State Equation: 90/90 constraints, ReadFeed: 20/20 constraints, PredecessorRefiner: 2/2 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 2 unsolved
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/4 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 1 (OVERLAPS) 68/72 variables, 16/16 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/72 variables, 0/16 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 3 (OVERLAPS) 120/192 variables, 72/88 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/192 variables, 20/108 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/192 variables, 0/108 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 6 (OVERLAPS) 18/210 variables, 18/126 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/210 variables, 6/132 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/210 variables, 2/134 constraints. Problems are: Problem set: 0 solved, 2 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:05:08] [INFO ] Deduced a trap composed of 14 places in 74 ms of which 9 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:05:08] [INFO ] Deduced a trap composed of 14 places in 69 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:05:08] [INFO ] Deduced a trap composed of 14 places in 61 ms of which 4 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/210 variables, 3/137 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/210 variables, 0/137 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 11 (OVERLAPS) 0/210 variables, 0/137 constraints. Problems are: Problem set: 0 solved, 2 unsolved
No progress, stopping.
After SMT solving in domain Int declared 210/210 variables, and 137 constraints, problems are : Problem set: 0 solved, 2 unsolved in 439 ms.
Refiners :[Positive P Invariants (semi-flows): 22/22 constraints, State Equation: 90/90 constraints, ReadFeed: 20/20 constraints, PredecessorRefiner: 2/2 constraints, Known Traps: 3/3 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 595ms problems are : Problem set: 0 solved, 2 unsolved
Parikh walk visited 0 properties in 109 ms.
Support contains 4 out of 90 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 90/90 places, 148/148 transitions.
Applied a total of 0 rules in 7 ms. Remains 90 /90 variables (removed 0) and now considering 148/148 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 7 ms. Remains : 90/90 places, 148/148 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 90/90 places, 148/148 transitions.
Applied a total of 0 rules in 7 ms. Remains 90 /90 variables (removed 0) and now considering 148/148 (removed 0) transitions.
[2026-05-25 21:05:09] [INFO ] Flow matrix only has 120 transitions (discarded 28 similar events)
[2026-05-25 21:05:09] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 21:05:09] [INFO ] Implicit Places using invariants in 103 ms returned []
[2026-05-25 21:05:09] [INFO ] Flow matrix only has 120 transitions (discarded 28 similar events)
[2026-05-25 21:05:09] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 21:05:09] [INFO ] State equation strengthened by 20 read => feed constraints.
[2026-05-25 21:05:09] [INFO ] Implicit Places using invariants and state equation in 207 ms returned []
Implicit Place search using SMT with State Equation took 312 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-25 21:05:09] [INFO ] Redundant transitions in 2 ms returned []
Running 144 sub problems to find dead transitions.
[2026-05-25 21:05:09] [INFO ] Flow matrix only has 120 transitions (discarded 28 similar events)
[2026-05-25 21:05:09] [INFO ] Invariant cache hit.
[2026-05-25 21:05:09] [INFO ] State equation strengthened by 20 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/86 variables, 6/6 constraints. Problems are: Problem set: 0 solved, 144 unsolved
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,1.4985e+06,9.16642,194256,2,44347,20,583660,8,0,512,733397,0
Total reachable state count : 1498496

Verifying 2 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
MAX0,0,9.19108,194256,1,0,20,583660,8,0,519,733397,0
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
MIN0,0,9.21861,194256,1,0,20,583660,8,0,525,733397,0
At refinement iteration 1 (INCLUDED_ONLY) 0/86 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 144 unsolved
At refinement iteration 2 (OVERLAPS) 4/90 variables, 16/22 constraints. Problems are: Problem set: 0 solved, 144 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:05:10] [INFO ] Deduced a trap composed of 6 places in 87 ms of which 9 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:05:10] [INFO ] Deduced a trap composed of 6 places in 103 ms of which 9 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:05:11] [INFO ] Deduced a trap composed of 6 places in 102 ms of which 9 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:05:11] [INFO ] Deduced a trap composed of 6 places in 100 ms of which 9 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:05:11] [INFO ] Deduced a trap composed of 6 places in 105 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:05:11] [INFO ] Deduced a trap composed of 9 places in 103 ms of which 12 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:05:11] [INFO ] Deduced a trap composed of 9 places in 100 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:05:11] [INFO ] Deduced a trap composed of 10 places in 75 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:05:11] [INFO ] Deduced a trap composed of 12 places in 45 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:05:11] [INFO ] Deduced a trap composed of 12 places in 44 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:05:11] [INFO ] Deduced a trap composed of 10 places in 66 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:05:11] [INFO ] Deduced a trap composed of 9 places in 89 ms of which 10 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:05:11] [INFO ] Deduced a trap composed of 12 places in 52 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:05:11] [INFO ] Deduced a trap composed of 9 places in 69 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:05:12] [INFO ] Deduced a trap composed of 9 places in 107 ms of which 9 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:05:12] [INFO ] Deduced a trap composed of 9 places in 105 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:05:12] [INFO ] Deduced a trap composed of 15 places in 108 ms of which 12 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:05:12] [INFO ] Deduced a trap composed of 7 places in 42 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:05:12] [INFO ] Deduced a trap composed of 15 places in 99 ms of which 12 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:05:12] [INFO ] Deduced a trap composed of 15 places in 91 ms of which 6 ms to minimize.
At refinement iteration 3 (INCLUDED_ONLY) 0/90 variables, 20/42 constraints. Problems are: Problem set: 0 solved, 144 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:05:13] [INFO ] Deduced a trap composed of 12 places in 80 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:05:13] [INFO ] Deduced a trap composed of 9 places in 83 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:05:13] [INFO ] Deduced a trap composed of 10 places in 107 ms of which 12 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:05:13] [INFO ] Deduced a trap composed of 14 places in 98 ms of which 10 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:05:13] [INFO ] Deduced a trap composed of 15 places in 114 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:05:13] [INFO ] Deduced a trap composed of 15 places in 85 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:05:13] [INFO ] Deduced a trap composed of 21 places in 82 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:05:14] [INFO ] Deduced a trap composed of 21 places in 84 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:05:14] [INFO ] Deduced a trap composed of 7 places in 64 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:05:14] [INFO ] Deduced a trap composed of 21 places in 55 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:05:14] [INFO ] Deduced a trap composed of 12 places in 72 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:05:14] [INFO ] Deduced a trap composed of 12 places in 81 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:05:14] [INFO ] Deduced a trap composed of 12 places in 106 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:05:14] [INFO ] Deduced a trap composed of 12 places in 106 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:05:14] [INFO ] Deduced a trap composed of 13 places in 113 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:05:14] [INFO ] Deduced a trap composed of 13 places in 114 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:05:14] [INFO ] Deduced a trap composed of 7 places in 40 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:05:14] [INFO ] Deduced a trap composed of 7 places in 38 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:05:15] [INFO ] Deduced a trap composed of 12 places in 63 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:05:15] [INFO ] Deduced a trap composed of 21 places in 123 ms of which 12 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/90 variables, 20/62 constraints. Problems are: Problem set: 0 solved, 144 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:05:15] [INFO ] Deduced a trap composed of 12 places in 83 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:05:15] [INFO ] Deduced a trap composed of 15 places in 97 ms of which 10 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:05:15] [INFO ] Deduced a trap composed of 15 places in 144 ms of which 24 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:05:15] [INFO ] Deduced a trap composed of 9 places in 97 ms of which 9 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:05:16] [INFO ] Deduced a trap composed of 12 places in 107 ms of which 9 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:05:16] [INFO ] Deduced a trap composed of 12 places in 89 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:05:16] [INFO ] Deduced a trap composed of 12 places in 108 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:05:16] [INFO ] Deduced a trap composed of 14 places in 112 ms of which 14 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:05:16] [INFO ] Deduced a trap composed of 15 places in 110 ms of which 14 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:05:16] [INFO ] Deduced a trap composed of 21 places in 94 ms of which 12 ms to minimize.
At refinement iteration 5 (INCLUDED_ONLY) 0/90 variables, 10/72 constraints. Problems are: Problem set: 0 solved, 144 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:05:17] [INFO ] Deduced a trap composed of 14 places in 102 ms of which 10 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:05:17] [INFO ] Deduced a trap composed of 14 places in 118 ms of which 14 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:05:17] [INFO ] Deduced a trap composed of 14 places in 112 ms of which 13 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:05:17] [INFO ] Deduced a trap composed of 21 places in 94 ms of which 12 ms to minimize.
At refinement iteration 6 (INCLUDED_ONLY) 0/90 variables, 4/76 constraints. Problems are: Problem set: 0 solved, 144 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:05:18] [INFO ] Deduced a trap composed of 15 places in 111 ms of which 10 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:05:18] [INFO ] Deduced a trap composed of 15 places in 112 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:05:19] [INFO ] Deduced a trap composed of 12 places in 90 ms of which 11 ms to minimize.
At refinement iteration 7 (INCLUDED_ONLY) 0/90 variables, 3/79 constraints. Problems are: Problem set: 0 solved, 144 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:05:19] [INFO ] Deduced a trap composed of 14 places in 98 ms of which 13 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:05:20] [INFO ] Deduced a trap composed of 21 places in 92 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:05:20] [INFO ] Deduced a trap composed of 21 places in 82 ms of which 9 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:05:20] [INFO ] Deduced a trap composed of 15 places in 87 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:05:20] [INFO ] Deduced a trap composed of 15 places in 81 ms of which 5 ms to minimize.
At refinement iteration 8 (INCLUDED_ONLY) 0/90 variables, 5/84 constraints. Problems are: Problem set: 0 solved, 144 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/90 variables, 0/84 constraints. Problems are: Problem set: 0 solved, 144 unsolved
At refinement iteration 10 (OVERLAPS) 120/210 variables, 90/174 constraints. Problems are: Problem set: 0 solved, 144 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/210 variables, 20/194 constraints. Problems are: Problem set: 0 solved, 144 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/210 variables, 0/194 constraints. Problems are: Problem set: 0 solved, 144 unsolved
At refinement iteration 13 (OVERLAPS) 0/210 variables, 0/194 constraints. Problems are: Problem set: 0 solved, 144 unsolved
No progress, stopping.
After SMT solving in domain Real declared 210/210 variables, and 194 constraints, problems are : Problem set: 0 solved, 144 unsolved in 17530 ms.
Refiners :[Positive P Invariants (semi-flows): 22/22 constraints, State Equation: 90/90 constraints, ReadFeed: 20/20 constraints, PredecessorRefiner: 144/144 constraints, Known Traps: 62/62 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 144 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/86 variables, 6/6 constraints. Problems are: Problem set: 0 solved, 144 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/86 variables, 40/46 constraints. Problems are: Problem set: 0 solved, 144 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/86 variables, 0/46 constraints. Problems are: Problem set: 0 solved, 144 unsolved
At refinement iteration 3 (OVERLAPS) 4/90 variables, 16/62 constraints. Problems are: Problem set: 0 solved, 144 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/90 variables, 22/84 constraints. Problems are: Problem set: 0 solved, 144 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:05:28] [INFO ] Deduced a trap composed of 14 places in 103 ms of which 13 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:05:28] [INFO ] Deduced a trap composed of 15 places in 107 ms of which 11 ms to minimize.
At refinement iteration 5 (INCLUDED_ONLY) 0/90 variables, 2/86 constraints. Problems are: Problem set: 0 solved, 144 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:05:29] [INFO ] Deduced a trap composed of 15 places in 120 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:05:29] [INFO ] Deduced a trap composed of 14 places in 116 ms of which 12 ms to minimize.
At refinement iteration 6 (INCLUDED_ONLY) 0/90 variables, 2/88 constraints. Problems are: Problem set: 0 solved, 144 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/90 variables, 0/88 constraints. Problems are: Problem set: 0 solved, 144 unsolved
At refinement iteration 8 (OVERLAPS) 120/210 variables, 90/178 constraints. Problems are: Problem set: 0 solved, 144 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/210 variables, 20/198 constraints. Problems are: Problem set: 0 solved, 144 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/210 variables, 144/342 constraints. Problems are: Problem set: 0 solved, 144 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:05:33] [INFO ] Deduced a trap composed of 14 places in 93 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:05:33] [INFO ] Deduced a trap composed of 15 places in 94 ms of which 11 ms to minimize.
At refinement iteration 11 (INCLUDED_ONLY) 0/210 variables, 2/344 constraints. Problems are: Problem set: 0 solved, 144 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:05:36] [INFO ] Deduced a trap composed of 14 places in 103 ms of which 12 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:05:36] [INFO ] Deduced a trap composed of 14 places in 94 ms of which 12 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:05:36] [INFO ] Deduced a trap composed of 15 places in 89 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:05:37] [INFO ] Deduced a trap composed of 15 places in 94 ms of which 5 ms to minimize.
At refinement iteration 12 (INCLUDED_ONLY) 0/210 variables, 4/348 constraints. Problems are: Problem set: 0 solved, 144 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:05:41] [INFO ] Deduced a trap composed of 14 places in 87 ms of which 11 ms to minimize.
At refinement iteration 13 (INCLUDED_ONLY) 0/210 variables, 1/349 constraints. Problems are: Problem set: 0 solved, 144 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:05:44] [INFO ] Deduced a trap composed of 14 places in 84 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:05:44] [INFO ] Deduced a trap composed of 14 places in 86 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:05:44] [INFO ] Deduced a trap composed of 15 places in 80 ms of which 5 ms to minimize.
At refinement iteration 14 (INCLUDED_ONLY) 0/210 variables, 3/352 constraints. Problems are: Problem set: 0 solved, 144 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 21:05:48] [INFO ] Deduced a trap along path composed of 4 places in 34 ms of which 1 ms to minimize.
At refinement iteration 15 (INCLUDED_ONLY) 0/210 variables, 1/353 constraints. Problems are: Problem set: 0 solved, 144 unsolved
Error getting values : (error "ParserException while parsing response: (timeout
org.smtlib.IParser$ParserException: Unbalanced parentheses at end of input")
Error getting values : (error "Error writing to Z3 solver: java.io.IOException: Stream closed")
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 210/210 variables, and 353 constraints, problems are : Problem set: 0 solved, 144 unsolved in 30021 ms.
Refiners :[Positive P Invariants (semi-flows): 22/22 constraints, State Equation: 90/90 constraints, ReadFeed: 20/20 constraints, PredecessorRefiner: 144/144 constraints, Known Traps: 76/76 constraints, Known Traps Along Path: 1/1 constraints]
After SMT, in 47590ms problems are : Problem set: 0 solved, 144 unsolved
Search for dead transitions found 0 dead transitions in 47592ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 47920 ms. Remains : 90/90 places, 148/148 transitions.
FORMULA LamportFastMutEx-COL-4-UpperBounds-01 1 TECHNIQUES REACHABILITY_MIN
Current structural bounds on expressions (After reachability solving 1 queries.) : Max Seen:[] Max Struct:[]
All properties solved without resorting to model-checking.
Total runtime 185793 ms.

BK_STOP 1779743157020

--------------------
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="LamportFastMutEx-COL-4"
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 LamportFastMutEx-COL-4, 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-177961111800045"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/LamportFastMutEx-COL-4.tgz
mv LamportFastMutEx-COL-4 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 ;