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.r111-tall-177955700900109.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 DoubleExponent-PT-003, examination is UpperBounds
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r111-tall-177955700900109
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 540K
-rw-r--r-- 1 mcc users 7.8K Mar 6 16:56 CTLCardinality.txt
-rw-r--r-- 1 mcc users 88K Mar 6 16:56 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.3K Mar 6 16:56 CTLFireability.txt
-rw-r--r-- 1 mcc users 47K Mar 6 16:56 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Mar 3 18:30 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 3.7K Mar 15 09:36 LTLCardinality.txt
-rw-r--r-- 1 mcc users 27K Mar 15 09:36 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.3K Mar 15 09:36 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K Mar 15 09:36 LTLFireability.xml
-rw-r--r-- 1 mcc users 14K Mar 6 16:57 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 149K Mar 6 16:57 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 8.4K Mar 6 16:57 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 72K Mar 6 16:57 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K Mar 15 09:36 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K Mar 15 09:36 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 equiv_col
-rw-r--r-- 1 mcc users 4 Mar 3 18:30 instance
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 iscolored
-rw-r--r-- 1 mcc users 50K 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 DoubleExponent-PT-003-UpperBounds-00
FORMULA_NAME DoubleExponent-PT-003-UpperBounds-01
FORMULA_NAME DoubleExponent-PT-003-UpperBounds-02
FORMULA_NAME DoubleExponent-PT-003-UpperBounds-03
FORMULA_NAME DoubleExponent-PT-003-UpperBounds-04
FORMULA_NAME DoubleExponent-PT-003-UpperBounds-05
FORMULA_NAME DoubleExponent-PT-003-UpperBounds-06
FORMULA_NAME DoubleExponent-PT-003-UpperBounds-07
FORMULA_NAME DoubleExponent-PT-003-UpperBounds-08
FORMULA_NAME DoubleExponent-PT-003-UpperBounds-09
FORMULA_NAME DoubleExponent-PT-003-UpperBounds-10
FORMULA_NAME DoubleExponent-PT-003-UpperBounds-11
FORMULA_NAME DoubleExponent-PT-003-UpperBounds-12
FORMULA_NAME DoubleExponent-PT-003-UpperBounds-13
FORMULA_NAME DoubleExponent-PT-003-UpperBounds-14
FORMULA_NAME DoubleExponent-PT-003-UpperBounds-15

=== Now, execution of the tool begins

BK_START 1779628755856

Invoking MCC driver with
GOLD_TOOL=
BK_EXAMINATION=UpperBounds
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=DoubleExponent-PT-003
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
UpperBounds PT
Running Version 202505121319
[2026-05-24 13:19:17] [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]
[2026-05-24 13:19:17] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-24 13:19:17] [INFO ] Load time of PNML (sax parser for PT used): 56 ms
[2026-05-24 13:19:17] [INFO ] Transformed 163 places.
[2026-05-24 13:19:17] [INFO ] Transformed 148 transitions.
[2026-05-24 13:19:17] [INFO ] Parsed PT model containing 163 places and 148 transitions and 417 arcs in 139 ms.
Parsed 16 properties from file /home/mcc/execution/UpperBounds.xml in 7 ms.
Current structural bounds on expressions (Initially) : Max Seen:[0, 0, 0, 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, +inf, +inf, +inf]
Current structural bounds on expressions (Before main loop) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
// Phase 1: matrix 148 rows 163 cols
[2026-05-24 13:19:17] [INFO ] Computed 19 invariants in 20 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[+inf, +inf, 1, 1, 1, +inf, 3, 1, 1, 1, +inf, 12, 1, 1, 1, 1]
RANDOM walk for 10000 steps (338 resets) in 32 ms. (303 steps per ms)
FORMULA DoubleExponent-PT-003-UpperBounds-14 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA DoubleExponent-PT-003-UpperBounds-13 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA DoubleExponent-PT-003-UpperBounds-09 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA DoubleExponent-PT-003-UpperBounds-03 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 120001 steps (3419 resets) in 226 ms. (528 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[4, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0] Max Struct:[+inf, +inf, 1, 1, +inf, 3, 1, 1, +inf, 12, 1, 1]
[2026-05-24 13:19:17] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:19:17] [INFO ] [Real]Absence check using 5 positive place invariants in 9 ms returned sat
[2026-05-24 13:19:17] [INFO ] [Real]Absence check using 5 positive and 14 generalized place invariants in 4 ms returned sat
[2026-05-24 13:19:17] [INFO ] [Real]Absence check using state equation in 88 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:18] [INFO ] Deduced a trap composed of 13 places in 87 ms of which 10 ms to minimize.
[2026-05-24 13:19:18] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:19:18] [INFO ] [Nat]Absence check using 5 positive place invariants in 5 ms returned sat
[2026-05-24 13:19:18] [INFO ] [Nat]Absence check using 5 positive and 14 generalized place invariants in 4 ms returned sat
[2026-05-24 13:19:18] [INFO ] [Nat]Absence check using state equation in 53 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:18] [INFO ] Deduced a trap composed of 13 places in 68 ms of which 4 ms to minimize.
[2026-05-24 13:19:18] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 89 ms
[2026-05-24 13:19:18] [INFO ] Computed and/alt/rep : 147/284/147 causal constraints (skipped 0 transitions) in 14 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:18] [INFO ] Deduced a trap composed of 18 places in 60 ms of which 5 ms to minimize.
[2026-05-24 13:19:18] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 88 ms
[2026-05-24 13:19:18] [INFO ] Added : 76 causal constraints over 16 iterations in 458 ms. Result :sat
Minimization took 124 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:19:18] [INFO ] [Real]Absence check using 5 positive place invariants in 3 ms returned sat
[2026-05-24 13:19:18] [INFO ] [Real]Absence check using 5 positive and 14 generalized place invariants in 3 ms returned sat
[2026-05-24 13:19:18] [INFO ] [Real]Absence check using state equation in 42 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:19] [INFO ] Deduced a trap composed of 42 places in 62 ms of which 14 ms to minimize.
[2026-05-24 13:19:19] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:19:19] [INFO ] [Nat]Absence check using 5 positive place invariants in 6 ms returned sat
[2026-05-24 13:19:19] [INFO ] [Nat]Absence check using 5 positive and 14 generalized place invariants in 6 ms returned sat
[2026-05-24 13:19:19] [INFO ] [Nat]Absence check using state equation in 54 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:19] [INFO ] Deduced a trap composed of 42 places in 62 ms of which 13 ms to minimize.
[2026-05-24 13:19:19] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 81 ms
[2026-05-24 13:19:19] [INFO ] Computed and/alt/rep : 147/284/147 causal constraints (skipped 0 transitions) in 8 ms.
[2026-05-24 13:19:19] [INFO ] Added : 119 causal constraints over 24 iterations in 399 ms. Result :sat
Minimization took 122 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:19:19] [INFO ] [Real]Absence check using 5 positive place invariants in 4 ms returned sat
[2026-05-24 13:19:19] [INFO ] [Real]Absence check using 5 positive and 14 generalized place invariants in 3 ms returned sat
[2026-05-24 13:19:19] [INFO ] [Real]Absence check using state equation in 46 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:19] [INFO ] Deduced a trap composed of 18 places in 61 ms of which 7 ms to minimize.
[2026-05-24 13:19:19] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:19:19] [INFO ] [Nat]Absence check using 5 positive place invariants in 3 ms returned sat
[2026-05-24 13:19:19] [INFO ] [Nat]Absence check using 5 positive and 14 generalized place invariants in 6 ms returned sat
[2026-05-24 13:19:20] [INFO ] [Nat]Absence check using state equation in 45 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:20] [INFO ] Deduced a trap composed of 18 places in 56 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:20] [INFO ] Deduced a trap composed of 31 places in 66 ms of which 10 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:20] [INFO ] Deduced a trap composed of 48 places in 64 ms of which 12 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:20] [INFO ] Deduced a trap composed of 37 places in 58 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:20] [INFO ] Deduced a trap composed of 56 places in 59 ms of which 11 ms to minimize.
[2026-05-24 13:19:20] [INFO ] Trap strengthening (SAT) tested/added 6/5 trap constraints in 363 ms
[2026-05-24 13:19:20] [INFO ] Computed and/alt/rep : 147/284/147 causal constraints (skipped 0 transitions) in 13 ms.
[2026-05-24 13:19:20] [INFO ] Added : 134 causal constraints over 27 iterations in 408 ms. Result :sat
Minimization took 146 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:19:20] [INFO ] [Real]Absence check using 5 positive place invariants in 4 ms returned sat
[2026-05-24 13:19:20] [INFO ] [Real]Absence check using 5 positive and 14 generalized place invariants in 3 ms returned sat
[2026-05-24 13:19:21] [INFO ] [Real]Absence check using state equation in 47 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:21] [INFO ] Deduced a trap composed of 42 places in 66 ms of which 12 ms to minimize.
[2026-05-24 13:19:21] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:19:21] [INFO ] [Nat]Absence check using 5 positive place invariants in 4 ms returned sat
[2026-05-24 13:19:21] [INFO ] [Nat]Absence check using 5 positive and 14 generalized place invariants in 3 ms returned sat
[2026-05-24 13:19:21] [INFO ] [Nat]Absence check using state equation in 48 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:21] [INFO ] Deduced a trap composed of 42 places in 61 ms of which 13 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:21] [INFO ] Deduced a trap composed of 60 places in 62 ms of which 9 ms to minimize.
[2026-05-24 13:19:21] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 151 ms
[2026-05-24 13:19:21] [INFO ] Computed and/alt/rep : 147/284/147 causal constraints (skipped 0 transitions) in 8 ms.
[2026-05-24 13:19:21] [INFO ] Added : 130 causal constraints over 27 iterations in 424 ms. Result :sat
Minimization took 133 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:19:21] [INFO ] [Real]Absence check using 5 positive place invariants in 5 ms returned sat
[2026-05-24 13:19:21] [INFO ] [Real]Absence check using 5 positive and 14 generalized place invariants in 3 ms returned sat
[2026-05-24 13:19:22] [INFO ] [Real]Absence check using state equation in 38 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:22] [INFO ] Deduced a trap composed of 18 places in 55 ms of which 6 ms to minimize.
[2026-05-24 13:19:22] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:19:22] [INFO ] [Nat]Absence check using 5 positive place invariants in 3 ms returned sat
[2026-05-24 13:19:22] [INFO ] [Nat]Absence check using 5 positive and 14 generalized place invariants in 2 ms returned sat
[2026-05-24 13:19:22] [INFO ] [Nat]Absence check using state equation in 36 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:22] [INFO ] Deduced a trap composed of 18 places in 57 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:22] [INFO ] Deduced a trap composed of 16 places in 54 ms of which 4 ms to minimize.
[2026-05-24 13:19:22] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 134 ms
[2026-05-24 13:19:22] [INFO ] Computed and/alt/rep : 147/284/147 causal constraints (skipped 0 transitions) in 9 ms.
[2026-05-24 13:19:22] [INFO ] Added : 143 causal constraints over 29 iterations in 475 ms. Result :sat
Minimization took 125 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:19:22] [INFO ] [Real]Absence check using 5 positive place invariants in 4 ms returned sat
[2026-05-24 13:19:22] [INFO ] [Real]Absence check using 5 positive and 14 generalized place invariants in 2 ms returned unsat
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:19:22] [INFO ] [Real]Absence check using 5 positive place invariants in 4 ms returned sat
[2026-05-24 13:19:22] [INFO ] [Real]Absence check using 5 positive and 14 generalized place invariants in 3 ms returned sat
[2026-05-24 13:19:23] [INFO ] [Real]Absence check using state equation in 44 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:23] [INFO ] Deduced a trap composed of 18 places in 57 ms of which 7 ms to minimize.
[2026-05-24 13:19:23] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:19:23] [INFO ] [Nat]Absence check using 5 positive place invariants in 4 ms returned sat
[2026-05-24 13:19:23] [INFO ] [Nat]Absence check using 5 positive and 14 generalized place invariants in 3 ms returned sat
[2026-05-24 13:19:23] [INFO ] [Nat]Absence check using state equation in 42 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:23] [INFO ] Deduced a trap composed of 18 places in 54 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:23] [INFO ] Deduced a trap composed of 42 places in 62 ms of which 13 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:23] [INFO ] Deduced a trap composed of 41 places in 58 ms of which 11 ms to minimize.
[2026-05-24 13:19:23] [INFO ] Trap strengthening (SAT) tested/added 4/3 trap constraints in 205 ms
[2026-05-24 13:19:23] [INFO ] Computed and/alt/rep : 147/284/147 causal constraints (skipped 0 transitions) in 7 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:23] [INFO ] Deduced a trap composed of 31 places in 45 ms of which 3 ms to minimize.
[2026-05-24 13:19:24] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 66 ms
[2026-05-24 13:19:24] [INFO ] Added : 117 causal constraints over 24 iterations in 621 ms. Result :sat
Minimization took 137 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:19:24] [INFO ] [Real]Absence check using 5 positive place invariants in 4 ms returned sat
[2026-05-24 13:19:24] [INFO ] [Real]Absence check using 5 positive and 14 generalized place invariants in 3 ms returned sat
[2026-05-24 13:19:24] [INFO ] [Real]Absence check using state equation in 48 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:24] [INFO ] Deduced a trap composed of 42 places in 44 ms of which 3 ms to minimize.
[2026-05-24 13:19:24] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:19:24] [INFO ] [Nat]Absence check using 5 positive place invariants in 3 ms returned sat
[2026-05-24 13:19:24] [INFO ] [Nat]Absence check using 5 positive and 14 generalized place invariants in 3 ms returned sat
[2026-05-24 13:19:24] [INFO ] [Nat]Absence check using state equation in 47 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:24] [INFO ] Deduced a trap composed of 42 places in 41 ms of which 3 ms to minimize.
[2026-05-24 13:19:24] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 53 ms
[2026-05-24 13:19:24] [INFO ] Computed and/alt/rep : 147/284/147 causal constraints (skipped 0 transitions) in 7 ms.
[2026-05-24 13:19:24] [INFO ] Added : 104 causal constraints over 21 iterations in 327 ms. Result :sat
Minimization took 118 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:19:24] [INFO ] [Real]Absence check using 5 positive place invariants in 4 ms returned sat
[2026-05-24 13:19:24] [INFO ] [Real]Absence check using 5 positive and 14 generalized place invariants in 3 ms returned sat
[2026-05-24 13:19:25] [INFO ] [Real]Absence check using state equation in 48 ms returned sat
[2026-05-24 13:19:25] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:19:25] [INFO ] [Nat]Absence check using 5 positive place invariants in 3 ms returned sat
[2026-05-24 13:19:25] [INFO ] [Nat]Absence check using 5 positive and 14 generalized place invariants in 3 ms returned sat
[2026-05-24 13:19:25] [INFO ] [Nat]Absence check using state equation in 57 ms returned sat
[2026-05-24 13:19:25] [INFO ] Computed and/alt/rep : 147/284/147 causal constraints (skipped 0 transitions) in 7 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:25] [INFO ] Deduced a trap composed of 54 places in 57 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:25] [INFO ] Deduced a trap composed of 65 places in 61 ms of which 15 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:25] [INFO ] Deduced a trap composed of 42 places in 58 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:25] [INFO ] Deduced a trap composed of 56 places in 63 ms of which 15 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:25] [INFO ] Deduced a trap composed of 64 places in 59 ms of which 13 ms to minimize.
[2026-05-24 13:19:25] [INFO ] Trap strengthening (SAT) tested/added 6/5 trap constraints in 430 ms
[2026-05-24 13:19:26] [INFO ] Added : 124 causal constraints over 26 iterations in 877 ms. Result :sat
Minimization took 136 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:19:26] [INFO ] [Real]Absence check using 5 positive place invariants in 4 ms returned sat
[2026-05-24 13:19:26] [INFO ] [Real]Absence check using 5 positive and 14 generalized place invariants in 3 ms returned sat
[2026-05-24 13:19:26] [INFO ] [Real]Absence check using state equation in 43 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:26] [INFO ] Deduced a trap composed of 48 places in 62 ms of which 13 ms to minimize.
[2026-05-24 13:19:26] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:19:26] [INFO ] [Nat]Absence check using 5 positive place invariants in 4 ms returned sat
[2026-05-24 13:19:26] [INFO ] [Nat]Absence check using 5 positive and 14 generalized place invariants in 3 ms returned sat
[2026-05-24 13:19:26] [INFO ] [Nat]Absence check using state equation in 42 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:26] [INFO ] Deduced a trap composed of 48 places in 63 ms of which 13 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:26] [INFO ] Deduced a trap composed of 37 places in 67 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:26] [INFO ] Deduced a trap composed of 56 places in 61 ms of which 13 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:26] [INFO ] Deduced a trap composed of 58 places in 59 ms of which 13 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:26] [INFO ] Deduced a trap composed of 66 places in 57 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:26] [INFO ] Deduced a trap composed of 68 places in 57 ms of which 13 ms to minimize.
[2026-05-24 13:19:26] [INFO ] Trap strengthening (SAT) tested/added 7/6 trap constraints in 423 ms
[2026-05-24 13:19:26] [INFO ] Computed and/alt/rep : 147/284/147 causal constraints (skipped 0 transitions) in 9 ms.
[2026-05-24 13:19:27] [INFO ] Added : 145 causal constraints over 29 iterations in 456 ms. Result :sat
Minimization took 136 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:19:27] [INFO ] [Real]Absence check using 5 positive place invariants in 4 ms returned sat
[2026-05-24 13:19:27] [INFO ] [Real]Absence check using 5 positive and 14 generalized place invariants in 3 ms returned sat
[2026-05-24 13:19:27] [INFO ] [Real]Absence check using state equation in 42 ms returned sat
[2026-05-24 13:19:27] [INFO ] Computed and/alt/rep : 147/284/147 causal constraints (skipped 0 transitions) in 7 ms.
[2026-05-24 13:19:27] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:19:27] [INFO ] [Nat]Absence check using 5 positive place invariants in 3 ms returned sat
[2026-05-24 13:19:27] [INFO ] [Nat]Absence check using 5 positive and 14 generalized place invariants in 2 ms returned sat
[2026-05-24 13:19:27] [INFO ] [Nat]Absence check using state equation in 40 ms returned sat
[2026-05-24 13:19:27] [INFO ] Computed and/alt/rep : 147/284/147 causal constraints (skipped 0 transitions) in 7 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:28] [INFO ] Deduced a trap composed of 37 places in 34 ms of which 2 ms to minimize.
[2026-05-24 13:19:28] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 57 ms
[2026-05-24 13:19:28] [INFO ] Added : 144 causal constraints over 29 iterations in 496 ms. Result :sat
Minimization took 138 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:19:28] [INFO ] [Real]Absence check using 5 positive place invariants in 3 ms returned sat
[2026-05-24 13:19:28] [INFO ] [Real]Absence check using 5 positive and 14 generalized place invariants in 2 ms returned sat
[2026-05-24 13:19:28] [INFO ] [Real]Absence check using state equation in 43 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:28] [INFO ] Deduced a trap composed of 37 places in 61 ms of which 12 ms to minimize.
[2026-05-24 13:19:28] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:19:28] [INFO ] [Nat]Absence check using 5 positive place invariants in 3 ms returned sat
[2026-05-24 13:19:28] [INFO ] [Nat]Absence check using 5 positive and 14 generalized place invariants in 3 ms returned sat
[2026-05-24 13:19:28] [INFO ] [Nat]Absence check using state equation in 45 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:28] [INFO ] Deduced a trap composed of 37 places in 63 ms of which 12 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:28] [INFO ] Deduced a trap composed of 48 places in 63 ms of which 14 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:28] [INFO ] Deduced a trap composed of 56 places in 63 ms of which 16 ms to minimize.
[2026-05-24 13:19:28] [INFO ] Trap strengthening (SAT) tested/added 4/3 trap constraints in 218 ms
[2026-05-24 13:19:28] [INFO ] Computed and/alt/rep : 147/284/147 causal constraints (skipped 0 transitions) in 7 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:29] [INFO ] Deduced a trap composed of 64 places in 67 ms of which 14 ms to minimize.
[2026-05-24 13:19:29] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 96 ms
[2026-05-24 13:19:29] [INFO ] Added : 135 causal constraints over 28 iterations in 524 ms. Result :sat
Minimization took 137 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[4, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0] Max Struct:[+inf, +inf, 1, 1, +inf, 1, 1, 1, +inf, 12, 1, 1]
FORMULA DoubleExponent-PT-003-UpperBounds-06 1 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[4, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[+inf, +inf, 1, 1, +inf, 1, 1, +inf, 12, 1, 1]
Support contains 11 out of 163 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 163/163 places, 148/148 transitions.
Graph (complete) has 269 edges and 163 vertex of which 157 are kept as prefixes of interest. Removing 6 places using SCC suffix rule.1 ms
Discarding 6 places :
Also discarding 0 output transitions
Drop transitions (Empty/Sink Transition effects.) removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Discarding 1 places :
Implicit places reduction removed 1 places
Drop transitions (Trivial Post-Agglo cleanup.) removed 26 transitions
Trivial Post-agglo rules discarded 26 transitions
Performed 26 trivial Post agglomeration. Transition count delta: 26
Iterating post reduction 0 with 29 rules applied. Total rules applied 30 place count 156 transition count 120
Reduce places removed 26 places and 0 transitions.
Performed 7 Post agglomeration using F-continuation condition.Transition count delta: 7
Iterating post reduction 1 with 33 rules applied. Total rules applied 63 place count 130 transition count 113
Reduce places removed 7 places and 0 transitions.
Iterating post reduction 2 with 7 rules applied. Total rules applied 70 place count 123 transition count 113
Performed 6 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 6 Pre rules applied. Total rules applied 70 place count 123 transition count 107
Deduced a syphon composed of 6 places in 1 ms
Reduce places removed 6 places and 0 transitions.
Iterating global reduction 3 with 12 rules applied. Total rules applied 82 place count 117 transition count 107
Performed 22 Post agglomeration using F-continuation condition.Transition count delta: 22
Deduced a syphon composed of 22 places in 0 ms
Reduce places removed 22 places and 0 transitions.
Iterating global reduction 3 with 44 rules applied. Total rules applied 126 place count 95 transition count 85
Performed 3 Post agglomeration using F-continuation condition.Transition count delta: 0
Deduced a syphon composed of 3 places in 0 ms
Reduce places removed 3 places and 0 transitions.
Iterating global reduction 3 with 6 rules applied. Total rules applied 132 place count 92 transition count 85
Free-agglomeration rule applied 2 times.
Iterating global reduction 3 with 2 rules applied. Total rules applied 134 place count 92 transition count 83
Reduce places removed 2 places and 0 transitions.
Iterating post reduction 3 with 2 rules applied. Total rules applied 136 place count 90 transition count 83
Free-agglomeration rule (complex) applied 11 times.
Iterating global reduction 4 with 11 rules applied. Total rules applied 147 place count 90 transition count 72
Reduce places removed 11 places and 0 transitions.
Iterating post reduction 4 with 11 rules applied. Total rules applied 158 place count 79 transition count 72
Partial Free-agglomeration rule applied 13 times.
Drop transitions (Partial Free agglomeration) removed 13 transitions
Iterating global reduction 5 with 13 rules applied. Total rules applied 171 place count 79 transition count 72
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 5 with 1 rules applied. Total rules applied 172 place count 78 transition count 71
Applied a total of 172 rules in 55 ms. Remains 78 /163 variables (removed 85) and now considering 71/148 (removed 77) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 63 ms. Remains : 78/163 places, 71/148 transitions.
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {0=1, 14=1, 15=1, 16=1, 31=1, 32=1, 40=1, 44=1, 60=1, 70=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {0=1, 14=1, 15=1, 16=1, 31=1, 32=1, 40=1, 44=1, 60=1, 70=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 1138 resets, run finished after 31 ms. (steps per millisecond=322 ) properties (out of 11) seen :[4, 0, 0, 1, 0, 0, 0, 2, 0, 0, 0]
Current structural bounds on expressions (after cover walk) : Max Seen:[4, 0, 0, 1, 0, 0, 0, 2, 0, 0, 0] Max Struct:[+inf, +inf, 1, 1, +inf, 1, 1, +inf, 12, 1, 1]
// Phase 1: matrix 71 rows 78 cols
[2026-05-24 13:19:30] [INFO ] Computed 15 invariants in 9 ms
Current structural bounds on expressions (after invariants) : Max Seen:[4, 0, 0, 1, 0, 0, 0, 2, 0, 0, 0] Max Struct:[+inf, +inf, 1, 1, +inf, 1, 1, +inf, 12, 1, 1]
FORMULA DoubleExponent-PT-003-UpperBounds-04 1 TECHNIQUES TOPOLOGICAL INITIAL_STATE
RANDOM walk for 1000000 steps (112689 resets) in 709 ms. (1408 steps per ms)
BEST_FIRST walk for 10000004 steps (777321 resets) in 4994 ms. (2002 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[4, 0, 0, 0, 0, 0, 4, 0, 0, 0] Max Struct:[+inf, +inf, 1, +inf, 1, 1, +inf, 12, 1, 1]
[2026-05-24 13:19:36] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:19:36] [INFO ] [Real]Absence check using 2 positive place invariants in 1 ms returned sat
[2026-05-24 13:19:36] [INFO ] [Real]Absence check using 2 positive and 13 generalized place invariants in 3 ms returned sat
[2026-05-24 13:19:36] [INFO ] [Real]Absence check using state equation in 17 ms returned sat
[2026-05-24 13:19:36] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:19:36] [INFO ] [Nat]Absence check using 2 positive place invariants in 1 ms returned sat
[2026-05-24 13:19:36] [INFO ] [Nat]Absence check using 2 positive and 13 generalized place invariants in 3 ms returned sat
[2026-05-24 13:19:36] [INFO ] [Nat]Absence check using state equation in 21 ms returned sat
[2026-05-24 13:19:36] [INFO ] State equation strengthened by 7 read => feed constraints.
[2026-05-24 13:19:36] [INFO ] [Nat]Added 7 Read/Feed constraints in 5 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:36] [INFO ] Deduced a trap composed of 5 places in 47 ms of which 3 ms to minimize.
[2026-05-24 13:19:36] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 57 ms
[2026-05-24 13:19:36] [INFO ] Computed and/alt/rep : 67/278/67 causal constraints (skipped 3 transitions) in 4 ms.
[2026-05-24 13:19:36] [INFO ] Added : 14 causal constraints over 4 iterations in 58 ms. Result :sat
Minimization took 28 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:19:36] [INFO ] [Real]Absence check using 2 positive place invariants in 1 ms returned sat
[2026-05-24 13:19:36] [INFO ] [Real]Absence check using 2 positive and 13 generalized place invariants in 2 ms returned sat
[2026-05-24 13:19:36] [INFO ] [Real]Absence check using state equation in 17 ms returned sat
[2026-05-24 13:19:36] [INFO ] [Real]Added 7 Read/Feed constraints in 9 ms returned sat
[2026-05-24 13:19:36] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:19:36] [INFO ] [Nat]Absence check using 2 positive place invariants in 1 ms returned sat
[2026-05-24 13:19:36] [INFO ] [Nat]Absence check using 2 positive and 13 generalized place invariants in 3 ms returned sat
[2026-05-24 13:19:36] [INFO ] [Nat]Absence check using state equation in 17 ms returned sat
[2026-05-24 13:19:36] [INFO ] [Nat]Added 7 Read/Feed constraints in 15 ms returned sat
[2026-05-24 13:19:36] [INFO ] Computed and/alt/rep : 67/278/67 causal constraints (skipped 3 transitions) in 7 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:36] [INFO ] Deduced a trap composed of 16 places in 50 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:36] [INFO ] Deduced a trap composed of 14 places in 47 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:37] [INFO ] Deduced a trap composed of 19 places in 51 ms of which 6 ms to minimize.
[2026-05-24 13:19:37] [INFO ] Trap strengthening (SAT) tested/added 4/3 trap constraints in 220 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:37] [INFO ] Deduced a trap composed of 8 places in 35 ms of which 3 ms to minimize.
[2026-05-24 13:19:37] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 48 ms
[2026-05-24 13:19:37] [INFO ] Added : 58 causal constraints over 14 iterations in 451 ms. Result :sat
Minimization took 48 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:19:37] [INFO ] [Real]Absence check using 2 positive place invariants in 1 ms returned sat
[2026-05-24 13:19:37] [INFO ] [Real]Absence check using 2 positive and 13 generalized place invariants in 3 ms returned sat
[2026-05-24 13:19:37] [INFO ] [Real]Absence check using state equation in 19 ms returned sat
[2026-05-24 13:19:37] [INFO ] [Real]Added 7 Read/Feed constraints in 3 ms returned sat
[2026-05-24 13:19:37] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:19:37] [INFO ] [Nat]Absence check using 2 positive place invariants in 1 ms returned sat
[2026-05-24 13:19:37] [INFO ] [Nat]Absence check using 2 positive and 13 generalized place invariants in 3 ms returned sat
[2026-05-24 13:19:37] [INFO ] [Nat]Absence check using state equation in 20 ms returned sat
[2026-05-24 13:19:37] [INFO ] [Nat]Added 7 Read/Feed constraints in 3 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:37] [INFO ] Deduced a trap composed of 16 places in 49 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:37] [INFO ] Deduced a trap composed of 14 places in 46 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:37] [INFO ] Deduced a trap composed of 16 places in 46 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:37] [INFO ] Deduced a trap composed of 20 places in 41 ms of which 5 ms to minimize.
[2026-05-24 13:19:37] [INFO ] Trap strengthening (SAT) tested/added 5/4 trap constraints in 209 ms
[2026-05-24 13:19:37] [INFO ] Computed and/alt/rep : 67/278/67 causal constraints (skipped 3 transitions) in 4 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:37] [INFO ] Deduced a trap composed of 8 places in 35 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:37] [INFO ] Deduced a trap composed of 9 places in 33 ms of which 2 ms to minimize.
[2026-05-24 13:19:37] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 96 ms
[2026-05-24 13:19:37] [INFO ] Added : 63 causal constraints over 13 iterations in 227 ms. Result :sat
Minimization took 57 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:19:37] [INFO ] [Real]Absence check using 2 positive place invariants in 1 ms returned sat
[2026-05-24 13:19:37] [INFO ] [Real]Absence check using 2 positive and 13 generalized place invariants in 7 ms returned sat
[2026-05-24 13:19:37] [INFO ] [Real]Absence check using state equation in 23 ms returned sat
[2026-05-24 13:19:37] [INFO ] [Real]Added 7 Read/Feed constraints in 2 ms returned sat
[2026-05-24 13:19:37] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:19:37] [INFO ] [Nat]Absence check using 2 positive place invariants in 1 ms returned sat
[2026-05-24 13:19:37] [INFO ] [Nat]Absence check using 2 positive and 13 generalized place invariants in 3 ms returned sat
[2026-05-24 13:19:38] [INFO ] [Nat]Absence check using state equation in 25 ms returned sat
[2026-05-24 13:19:38] [INFO ] [Nat]Added 7 Read/Feed constraints in 6 ms returned sat
[2026-05-24 13:19:38] [INFO ] Computed and/alt/rep : 67/278/67 causal constraints (skipped 3 transitions) in 4 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:38] [INFO ] Deduced a trap composed of 8 places in 41 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:38] [INFO ] Deduced a trap composed of 9 places in 38 ms of which 2 ms to minimize.
[2026-05-24 13:19:38] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 113 ms
[2026-05-24 13:19:38] [INFO ] Added : 49 causal constraints over 11 iterations in 213 ms. Result :sat
Minimization took 37 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:19:38] [INFO ] [Real]Absence check using 2 positive place invariants in 1 ms returned sat
[2026-05-24 13:19:38] [INFO ] [Real]Absence check using 2 positive and 13 generalized place invariants in 3 ms returned sat
[2026-05-24 13:19:38] [INFO ] [Real]Absence check using state equation in 23 ms returned sat
[2026-05-24 13:19:38] [INFO ] [Real]Added 7 Read/Feed constraints in 3 ms returned sat
[2026-05-24 13:19:38] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:19:38] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2026-05-24 13:19:38] [INFO ] [Nat]Absence check using 2 positive and 13 generalized place invariants in 3 ms returned sat
[2026-05-24 13:19:38] [INFO ] [Nat]Absence check using state equation in 21 ms returned sat
[2026-05-24 13:19:38] [INFO ] [Nat]Added 7 Read/Feed constraints in 3 ms returned sat
[2026-05-24 13:19:38] [INFO ] Computed and/alt/rep : 67/278/67 causal constraints (skipped 3 transitions) in 3 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:38] [INFO ] Deduced a trap composed of 20 places in 49 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:38] [INFO ] Deduced a trap composed of 21 places in 46 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:38] [INFO ] Deduced a trap composed of 18 places in 45 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:38] [INFO ] Deduced a trap composed of 19 places in 47 ms of which 5 ms to minimize.
[2026-05-24 13:19:38] [INFO ] Trap strengthening (SAT) tested/added 5/4 trap constraints in 243 ms
[2026-05-24 13:19:38] [INFO ] Added : 62 causal constraints over 14 iterations in 382 ms. Result :sat
Minimization took 54 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:19:38] [INFO ] [Real]Absence check using 2 positive place invariants in 1 ms returned sat
[2026-05-24 13:19:38] [INFO ] [Real]Absence check using 2 positive and 13 generalized place invariants in 2 ms returned sat
[2026-05-24 13:19:38] [INFO ] [Real]Absence check using state equation in 19 ms returned sat
[2026-05-24 13:19:38] [INFO ] [Real]Added 7 Read/Feed constraints in 5 ms returned sat
[2026-05-24 13:19:38] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:19:38] [INFO ] [Nat]Absence check using 2 positive place invariants in 1 ms returned sat
[2026-05-24 13:19:38] [INFO ] [Nat]Absence check using 2 positive and 13 generalized place invariants in 3 ms returned sat
[2026-05-24 13:19:38] [INFO ] [Nat]Absence check using state equation in 17 ms returned sat
[2026-05-24 13:19:38] [INFO ] [Nat]Added 7 Read/Feed constraints in 6 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:38] [INFO ] Deduced a trap composed of 14 places in 30 ms of which 2 ms to minimize.
[2026-05-24 13:19:38] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 43 ms
[2026-05-24 13:19:38] [INFO ] Computed and/alt/rep : 67/278/67 causal constraints (skipped 3 transitions) in 4 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:39] [INFO ] Deduced a trap composed of 8 places in 41 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:39] [INFO ] Deduced a trap composed of 9 places in 41 ms of which 3 ms to minimize.
[2026-05-24 13:19:39] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 116 ms
[2026-05-24 13:19:39] [INFO ] Added : 62 causal constraints over 13 iterations in 246 ms. Result :sat
Minimization took 58 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:19:39] [INFO ] [Real]Absence check using 2 positive place invariants in 1 ms returned sat
[2026-05-24 13:19:39] [INFO ] [Real]Absence check using 2 positive and 13 generalized place invariants in 3 ms returned sat
[2026-05-24 13:19:39] [INFO ] [Real]Absence check using state equation in 18 ms returned sat
[2026-05-24 13:19:39] [INFO ] [Real]Added 7 Read/Feed constraints in 10 ms returned sat
[2026-05-24 13:19:39] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:19:39] [INFO ] [Nat]Absence check using 2 positive place invariants in 1 ms returned sat
[2026-05-24 13:19:39] [INFO ] [Nat]Absence check using 2 positive and 13 generalized place invariants in 3 ms returned sat
[2026-05-24 13:19:39] [INFO ] [Nat]Absence check using state equation in 18 ms returned sat
[2026-05-24 13:19:39] [INFO ] [Nat]Added 7 Read/Feed constraints in 9 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:39] [INFO ] Deduced a trap composed of 5 places in 51 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:39] [INFO ] Deduced a trap composed of 12 places in 43 ms of which 5 ms to minimize.
[2026-05-24 13:19:39] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 108 ms
[2026-05-24 13:19:39] [INFO ] Computed and/alt/rep : 67/278/67 causal constraints (skipped 3 transitions) in 3 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:39] [INFO ] Deduced a trap composed of 10 places in 38 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:39] [INFO ] Deduced a trap composed of 15 places in 28 ms of which 3 ms to minimize.
[2026-05-24 13:19:39] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 95 ms
[2026-05-24 13:19:39] [INFO ] Added : 60 causal constraints over 13 iterations in 234 ms. Result :sat
Minimization took 42 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:19:39] [INFO ] [Real]Absence check using 2 positive place invariants in 1 ms returned sat
[2026-05-24 13:19:39] [INFO ] [Real]Absence check using 2 positive and 13 generalized place invariants in 2 ms returned sat
[2026-05-24 13:19:39] [INFO ] [Real]Absence check using state equation in 17 ms returned sat
[2026-05-24 13:19:39] [INFO ] [Real]Added 7 Read/Feed constraints in 3 ms returned sat
[2026-05-24 13:19:39] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:19:39] [INFO ] [Nat]Absence check using 2 positive place invariants in 1 ms returned sat
[2026-05-24 13:19:39] [INFO ] [Nat]Absence check using 2 positive and 13 generalized place invariants in 2 ms returned sat
[2026-05-24 13:19:39] [INFO ] [Nat]Absence check using state equation in 18 ms returned sat
[2026-05-24 13:19:39] [INFO ] [Nat]Added 7 Read/Feed constraints in 5 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:39] [INFO ] Deduced a trap composed of 14 places in 46 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:40] [INFO ] Deduced a trap composed of 16 places in 42 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:40] [INFO ] Deduced a trap composed of 25 places in 44 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:40] [INFO ] Deduced a trap composed of 27 places in 49 ms of which 7 ms to minimize.
[2026-05-24 13:19:40] [INFO ] Trap strengthening (SAT) tested/added 5/4 trap constraints in 199 ms
[2026-05-24 13:19:40] [INFO ] Computed and/alt/rep : 67/278/67 causal constraints (skipped 3 transitions) in 4 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:40] [INFO ] Deduced a trap composed of 8 places in 38 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:40] [INFO ] Deduced a trap composed of 9 places in 32 ms of which 2 ms to minimize.
[2026-05-24 13:19:40] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 100 ms
[2026-05-24 13:19:40] [INFO ] Added : 66 causal constraints over 14 iterations in 265 ms. Result :sat
Minimization took 50 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:19:40] [INFO ] [Real]Absence check using 2 positive place invariants in 1 ms returned sat
[2026-05-24 13:19:40] [INFO ] [Real]Absence check using 2 positive and 13 generalized place invariants in 3 ms returned sat
[2026-05-24 13:19:40] [INFO ] [Real]Absence check using state equation in 18 ms returned sat
[2026-05-24 13:19:40] [INFO ] [Real]Added 7 Read/Feed constraints in 3 ms returned sat
[2026-05-24 13:19:40] [INFO ] Computed and/alt/rep : 67/278/67 causal constraints (skipped 3 transitions) in 4 ms.
[2026-05-24 13:19:40] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:19:40] [INFO ] [Nat]Absence check using 2 positive place invariants in 1 ms returned sat
[2026-05-24 13:19:40] [INFO ] [Nat]Absence check using 2 positive and 13 generalized place invariants in 3 ms returned sat
[2026-05-24 13:19:40] [INFO ] [Nat]Absence check using state equation in 19 ms returned sat
[2026-05-24 13:19:40] [INFO ] [Nat]Added 7 Read/Feed constraints in 5 ms returned sat
[2026-05-24 13:19:40] [INFO ] Computed and/alt/rep : 67/278/67 causal constraints (skipped 3 transitions) in 4 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:40] [INFO ] Deduced a trap composed of 8 places in 42 ms of which 4 ms to minimize.
[2026-05-24 13:19:40] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 64 ms
[2026-05-24 13:19:40] [INFO ] Added : 62 causal constraints over 13 iterations in 194 ms. Result :sat
Minimization took 55 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:19:40] [INFO ] [Real]Absence check using 2 positive place invariants in 1 ms returned sat
[2026-05-24 13:19:40] [INFO ] [Real]Absence check using 2 positive and 13 generalized place invariants in 3 ms returned sat
[2026-05-24 13:19:40] [INFO ] [Real]Absence check using state equation in 19 ms returned sat
[2026-05-24 13:19:40] [INFO ] [Real]Added 7 Read/Feed constraints in 5 ms returned sat
[2026-05-24 13:19:40] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:19:40] [INFO ] [Nat]Absence check using 2 positive place invariants in 1 ms returned sat
[2026-05-24 13:19:40] [INFO ] [Nat]Absence check using 2 positive and 13 generalized place invariants in 3 ms returned sat
[2026-05-24 13:19:40] [INFO ] [Nat]Absence check using state equation in 17 ms returned sat
[2026-05-24 13:19:40] [INFO ] [Nat]Added 7 Read/Feed constraints in 6 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:40] [INFO ] Deduced a trap composed of 16 places in 48 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:41] [INFO ] Deduced a trap composed of 20 places in 44 ms of which 7 ms to minimize.
[2026-05-24 13:19:41] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 107 ms
[2026-05-24 13:19:41] [INFO ] Computed and/alt/rep : 67/278/67 causal constraints (skipped 3 transitions) in 5 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:41] [INFO ] Deduced a trap composed of 11 places in 49 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:41] [INFO ] Deduced a trap composed of 20 places in 46 ms of which 6 ms to minimize.
[2026-05-24 13:19:41] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 123 ms
[2026-05-24 13:19:41] [INFO ] Added : 67 causal constraints over 14 iterations in 302 ms. Result :sat
Minimization took 51 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[4, 0, 0, 0, 0, 0, 4, 0, 0, 0] Max Struct:[+inf, +inf, 1, +inf, 1, 1, +inf, 12, 1, 1]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[4, 0, 0, 0, 0, 0, 4, 0, 0, 0] Max Struct:[+inf, +inf, 1, +inf, 1, 1, +inf, 12, 1, 1]
Support contains 10 out of 78 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 78/78 places, 71/71 transitions.
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 78 transition count 70
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 77 transition count 70
Applied a total of 2 rules in 6 ms. Remains 77 /78 variables (removed 1) and now considering 70/71 (removed 1) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 6 ms. Remains : 77/78 places, 70/71 transitions.
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {0=1, 14=1, 15=1, 16=1, 17=1, 29=1, 30=1, 38=1, 39=2, 42=1, 57=1, 60=2, 67=1, 69=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {0=1, 14=1, 15=1, 16=1, 29=1, 30=1, 38=1, 42=1, 57=1, 67=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 1134 resets, run finished after 44 ms. (steps per millisecond=227 ) properties (out of 10) seen :[4, 0, 0, 0, 0, 0, 1, 0, 0, 0]
Current structural bounds on expressions (after cover walk) : Max Seen:[4, 0, 0, 0, 0, 0, 4, 0, 0, 0] Max Struct:[+inf, +inf, 1, +inf, 1, 1, +inf, 12, 1, 1]
// Phase 1: matrix 70 rows 77 cols
[2026-05-24 13:19:41] [INFO ] Computed 15 invariants in 9 ms
Current structural bounds on expressions (after invariants) : Max Seen:[4, 0, 0, 0, 0, 0, 4, 0, 0, 0] Max Struct:[+inf, +inf, 1, +inf, 1, 1, +inf, 12, 1, 1]
RANDOM walk for 1000000 steps (112871 resets) in 683 ms. (1461 steps per ms)
BEST_FIRST walk for 10000002 steps (777228 resets) in 4904 ms. (2038 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[4, 0, 0, 0, 0, 0, 4, 0, 0, 0] Max Struct:[+inf, +inf, 1, +inf, 1, 1, +inf, 12, 1, 1]
[2026-05-24 13:19:47] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:19:47] [INFO ] [Real]Absence check using 2 positive place invariants in 1 ms returned sat
[2026-05-24 13:19:47] [INFO ] [Real]Absence check using 2 positive and 13 generalized place invariants in 3 ms returned sat
[2026-05-24 13:19:47] [INFO ] [Real]Absence check using state equation in 18 ms returned sat
[2026-05-24 13:19:47] [INFO ] State equation strengthened by 7 read => feed constraints.
[2026-05-24 13:19:47] [INFO ] [Real]Added 7 Read/Feed constraints in 3 ms returned sat
[2026-05-24 13:19:47] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:19:47] [INFO ] [Nat]Absence check using 2 positive place invariants in 1 ms returned sat
[2026-05-24 13:19:47] [INFO ] [Nat]Absence check using 2 positive and 13 generalized place invariants in 3 ms returned sat
[2026-05-24 13:19:47] [INFO ] [Nat]Absence check using state equation in 20 ms returned sat
[2026-05-24 13:19:47] [INFO ] [Nat]Added 7 Read/Feed constraints in 6 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:47] [INFO ] Deduced a trap composed of 5 places in 49 ms of which 3 ms to minimize.
[2026-05-24 13:19:47] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 56 ms
[2026-05-24 13:19:47] [INFO ] Computed and/alt/rep : 66/284/66 causal constraints (skipped 3 transitions) in 4 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:47] [INFO ] Deduced a trap composed of 4 places in 45 ms of which 3 ms to minimize.
[2026-05-24 13:19:47] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 57 ms
[2026-05-24 13:19:47] [INFO ] Added : 14 causal constraints over 5 iterations in 122 ms. Result :sat
Minimization took 27 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:19:47] [INFO ] [Real]Absence check using 2 positive place invariants in 1 ms returned sat
[2026-05-24 13:19:47] [INFO ] [Real]Absence check using 2 positive and 13 generalized place invariants in 2 ms returned sat
[2026-05-24 13:19:47] [INFO ] [Real]Absence check using state equation in 18 ms returned sat
[2026-05-24 13:19:47] [INFO ] [Real]Added 7 Read/Feed constraints in 12 ms returned sat
[2026-05-24 13:19:47] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:19:47] [INFO ] [Nat]Absence check using 2 positive place invariants in 1 ms returned sat
[2026-05-24 13:19:47] [INFO ] [Nat]Absence check using 2 positive and 13 generalized place invariants in 5 ms returned sat
[2026-05-24 13:19:47] [INFO ] [Nat]Absence check using state equation in 20 ms returned sat
[2026-05-24 13:19:47] [INFO ] [Nat]Added 7 Read/Feed constraints in 4 ms returned sat
[2026-05-24 13:19:47] [INFO ] Computed and/alt/rep : 66/284/66 causal constraints (skipped 3 transitions) in 4 ms.
[2026-05-24 13:19:48] [INFO ] Added : 57 causal constraints over 12 iterations in 108 ms. Result :sat
Minimization took 51 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:19:48] [INFO ] [Real]Absence check using 2 positive place invariants in 1 ms returned sat
[2026-05-24 13:19:48] [INFO ] [Real]Absence check using 2 positive and 13 generalized place invariants in 3 ms returned sat
[2026-05-24 13:19:48] [INFO ] [Real]Absence check using state equation in 21 ms returned sat
[2026-05-24 13:19:48] [INFO ] [Real]Added 7 Read/Feed constraints in 4 ms returned sat
[2026-05-24 13:19:48] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:19:48] [INFO ] [Nat]Absence check using 2 positive place invariants in 1 ms returned sat
[2026-05-24 13:19:48] [INFO ] [Nat]Absence check using 2 positive and 13 generalized place invariants in 3 ms returned sat
[2026-05-24 13:19:48] [INFO ] [Nat]Absence check using state equation in 19 ms returned sat
[2026-05-24 13:19:48] [INFO ] [Nat]Added 7 Read/Feed constraints in 6 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:48] [INFO ] Deduced a trap composed of 14 places in 51 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:48] [INFO ] Deduced a trap composed of 16 places in 45 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:48] [INFO ] Deduced a trap composed of 19 places in 45 ms of which 6 ms to minimize.
[2026-05-24 13:19:48] [INFO ] Trap strengthening (SAT) tested/added 4/3 trap constraints in 162 ms
[2026-05-24 13:19:48] [INFO ] Computed and/alt/rep : 66/284/66 causal constraints (skipped 3 transitions) in 5 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:48] [INFO ] Deduced a trap composed of 8 places in 46 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:48] [INFO ] Deduced a trap composed of 9 places in 41 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:48] [INFO ] Deduced a trap composed of 18 places in 44 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:48] [INFO ] Deduced a trap composed of 20 places in 45 ms of which 5 ms to minimize.
[2026-05-24 13:19:48] [INFO ] Trap strengthening (SAT) tested/added 5/4 trap constraints in 222 ms
[2026-05-24 13:19:48] [INFO ] Added : 65 causal constraints over 13 iterations in 371 ms. Result :sat
Minimization took 55 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:19:48] [INFO ] [Real]Absence check using 2 positive place invariants in 1 ms returned sat
[2026-05-24 13:19:48] [INFO ] [Real]Absence check using 2 positive and 13 generalized place invariants in 3 ms returned sat
[2026-05-24 13:19:48] [INFO ] [Real]Absence check using state equation in 17 ms returned sat
[2026-05-24 13:19:48] [INFO ] [Real]Added 7 Read/Feed constraints in 4 ms returned sat
[2026-05-24 13:19:48] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:19:48] [INFO ] [Nat]Absence check using 2 positive place invariants in 1 ms returned sat
[2026-05-24 13:19:48] [INFO ] [Nat]Absence check using 2 positive and 13 generalized place invariants in 2 ms returned sat
[2026-05-24 13:19:48] [INFO ] [Nat]Absence check using state equation in 17 ms returned sat
[2026-05-24 13:19:48] [INFO ] [Nat]Added 7 Read/Feed constraints in 15 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:49] [INFO ] Deduced a trap composed of 5 places in 43 ms of which 4 ms to minimize.
[2026-05-24 13:19:49] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 50 ms
[2026-05-24 13:19:49] [INFO ] Computed and/alt/rep : 66/284/66 causal constraints (skipped 3 transitions) in 4 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:49] [INFO ] Deduced a trap composed of 8 places in 46 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:49] [INFO ] Deduced a trap composed of 9 places in 38 ms of which 2 ms to minimize.
[2026-05-24 13:19:49] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 107 ms
[2026-05-24 13:19:49] [INFO ] Added : 55 causal constraints over 12 iterations in 218 ms. Result :sat
Minimization took 46 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:19:49] [INFO ] [Real]Absence check using 2 positive place invariants in 1 ms returned sat
[2026-05-24 13:19:49] [INFO ] [Real]Absence check using 2 positive and 13 generalized place invariants in 2 ms returned sat
[2026-05-24 13:19:49] [INFO ] [Real]Absence check using state equation in 17 ms returned sat
[2026-05-24 13:19:49] [INFO ] [Real]Added 7 Read/Feed constraints in 4 ms returned sat
[2026-05-24 13:19:49] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:19:49] [INFO ] [Nat]Absence check using 2 positive place invariants in 1 ms returned sat
[2026-05-24 13:19:49] [INFO ] [Nat]Absence check using 2 positive and 13 generalized place invariants in 2 ms returned sat
[2026-05-24 13:19:49] [INFO ] [Nat]Absence check using state equation in 20 ms returned sat
[2026-05-24 13:19:49] [INFO ] [Nat]Added 7 Read/Feed constraints in 9 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:49] [INFO ] Deduced a trap composed of 14 places in 41 ms of which 6 ms to minimize.
[2026-05-24 13:19:49] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 49 ms
[2026-05-24 13:19:49] [INFO ] Computed and/alt/rep : 66/284/66 causal constraints (skipped 3 transitions) in 5 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:49] [INFO ] Deduced a trap composed of 8 places in 40 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:49] [INFO ] Deduced a trap composed of 9 places in 41 ms of which 2 ms to minimize.
[2026-05-24 13:19:49] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 117 ms
[2026-05-24 13:19:49] [INFO ] Added : 52 causal constraints over 12 iterations in 249 ms. Result :sat
Minimization took 44 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:19:49] [INFO ] [Real]Absence check using 2 positive place invariants in 0 ms returned sat
[2026-05-24 13:19:49] [INFO ] [Real]Absence check using 2 positive and 13 generalized place invariants in 2 ms returned sat
[2026-05-24 13:19:49] [INFO ] [Real]Absence check using state equation in 18 ms returned sat
[2026-05-24 13:19:49] [INFO ] [Real]Added 7 Read/Feed constraints in 7 ms returned sat
[2026-05-24 13:19:49] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:19:49] [INFO ] [Nat]Absence check using 2 positive place invariants in 1 ms returned sat
[2026-05-24 13:19:49] [INFO ] [Nat]Absence check using 2 positive and 13 generalized place invariants in 2 ms returned sat
[2026-05-24 13:19:49] [INFO ] [Nat]Absence check using state equation in 18 ms returned sat
[2026-05-24 13:19:49] [INFO ] [Nat]Added 7 Read/Feed constraints in 8 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:49] [INFO ] Deduced a trap composed of 14 places in 30 ms of which 2 ms to minimize.
[2026-05-24 13:19:49] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 42 ms
[2026-05-24 13:19:49] [INFO ] Computed and/alt/rep : 66/284/66 causal constraints (skipped 3 transitions) in 3 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:50] [INFO ] Deduced a trap composed of 10 places in 34 ms of which 3 ms to minimize.
[2026-05-24 13:19:50] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 51 ms
[2026-05-24 13:19:50] [INFO ] Added : 57 causal constraints over 12 iterations in 180 ms. Result :sat
Minimization took 53 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:19:50] [INFO ] [Real]Absence check using 2 positive place invariants in 1 ms returned sat
[2026-05-24 13:19:50] [INFO ] [Real]Absence check using 2 positive and 13 generalized place invariants in 3 ms returned sat
[2026-05-24 13:19:50] [INFO ] [Real]Absence check using state equation in 25 ms returned sat
[2026-05-24 13:19:50] [INFO ] [Real]Added 7 Read/Feed constraints in 21 ms returned sat
[2026-05-24 13:19:50] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:19:50] [INFO ] [Nat]Absence check using 2 positive place invariants in 1 ms returned sat
[2026-05-24 13:19:50] [INFO ] [Nat]Absence check using 2 positive and 13 generalized place invariants in 3 ms returned sat
[2026-05-24 13:19:50] [INFO ] [Nat]Absence check using state equation in 20 ms returned sat
[2026-05-24 13:19:50] [INFO ] [Nat]Added 7 Read/Feed constraints in 12 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:50] [INFO ] Deduced a trap composed of 12 places in 48 ms of which 5 ms to minimize.
[2026-05-24 13:19:50] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 56 ms
[2026-05-24 13:19:50] [INFO ] Computed and/alt/rep : 66/284/66 causal constraints (skipped 3 transitions) in 4 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:50] [INFO ] Deduced a trap composed of 8 places in 46 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:50] [INFO ] Deduced a trap composed of 9 places in 43 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:50] [INFO ] Deduced a trap composed of 14 places in 30 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:50] [INFO ] Deduced a trap composed of 15 places in 30 ms of which 2 ms to minimize.
[2026-05-24 13:19:50] [INFO ] Trap strengthening (SAT) tested/added 5/4 trap constraints in 221 ms
[2026-05-24 13:19:50] [INFO ] Added : 61 causal constraints over 14 iterations in 382 ms. Result :sat
Minimization took 44 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:19:50] [INFO ] [Real]Absence check using 2 positive place invariants in 1 ms returned sat
[2026-05-24 13:19:50] [INFO ] [Real]Absence check using 2 positive and 13 generalized place invariants in 2 ms returned sat
[2026-05-24 13:19:50] [INFO ] [Real]Absence check using state equation in 18 ms returned sat
[2026-05-24 13:19:50] [INFO ] [Real]Added 7 Read/Feed constraints in 4 ms returned sat
[2026-05-24 13:19:50] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:19:50] [INFO ] [Nat]Absence check using 2 positive place invariants in 1 ms returned sat
[2026-05-24 13:19:50] [INFO ] [Nat]Absence check using 2 positive and 13 generalized place invariants in 2 ms returned sat
[2026-05-24 13:19:50] [INFO ] [Nat]Absence check using state equation in 19 ms returned sat
[2026-05-24 13:19:50] [INFO ] [Nat]Added 7 Read/Feed constraints in 3 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:50] [INFO ] Deduced a trap composed of 14 places in 46 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:50] [INFO ] Deduced a trap composed of 16 places in 41 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:51] [INFO ] Deduced a trap composed of 16 places in 42 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:51] [INFO ] Deduced a trap composed of 24 places in 45 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:51] [INFO ] Deduced a trap composed of 27 places in 39 ms of which 6 ms to minimize.
[2026-05-24 13:19:51] [INFO ] Trap strengthening (SAT) tested/added 6/5 trap constraints in 237 ms
[2026-05-24 13:19:51] [INFO ] Computed and/alt/rep : 66/284/66 causal constraints (skipped 3 transitions) in 4 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:51] [INFO ] Deduced a trap composed of 4 places in 43 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:51] [INFO ] Deduced a trap composed of 8 places in 34 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:51] [INFO ] Deduced a trap composed of 9 places in 30 ms of which 2 ms to minimize.
[2026-05-24 13:19:51] [INFO ] Trap strengthening (SAT) tested/added 4/3 trap constraints in 144 ms
[2026-05-24 13:19:51] [INFO ] Added : 62 causal constraints over 16 iterations in 355 ms. Result :sat
Minimization took 53 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:19:51] [INFO ] [Real]Absence check using 2 positive place invariants in 1 ms returned sat
[2026-05-24 13:19:51] [INFO ] [Real]Absence check using 2 positive and 13 generalized place invariants in 3 ms returned sat
[2026-05-24 13:19:51] [INFO ] [Real]Absence check using state equation in 19 ms returned sat
[2026-05-24 13:19:51] [INFO ] [Real]Added 7 Read/Feed constraints in 7 ms returned sat
[2026-05-24 13:19:51] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:19:51] [INFO ] [Nat]Absence check using 2 positive place invariants in 1 ms returned sat
[2026-05-24 13:19:51] [INFO ] [Nat]Absence check using 2 positive and 13 generalized place invariants in 3 ms returned sat
[2026-05-24 13:19:51] [INFO ] [Nat]Absence check using state equation in 18 ms returned sat
[2026-05-24 13:19:51] [INFO ] [Nat]Added 7 Read/Feed constraints in 5 ms returned sat
[2026-05-24 13:19:51] [INFO ] Computed and/alt/rep : 66/284/66 causal constraints (skipped 3 transitions) in 4 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:51] [INFO ] Deduced a trap composed of 8 places in 47 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:51] [INFO ] Deduced a trap composed of 9 places in 39 ms of which 3 ms to minimize.
[2026-05-24 13:19:51] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 120 ms
[2026-05-24 13:19:51] [INFO ] Added : 63 causal constraints over 14 iterations in 271 ms. Result :sat
Minimization took 50 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:19:52] [INFO ] [Real]Absence check using 2 positive place invariants in 1 ms returned sat
[2026-05-24 13:19:52] [INFO ] [Real]Absence check using 2 positive and 13 generalized place invariants in 2 ms returned sat
[2026-05-24 13:19:52] [INFO ] [Real]Absence check using state equation in 18 ms returned sat
[2026-05-24 13:19:52] [INFO ] [Real]Added 7 Read/Feed constraints in 9 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:52] [INFO ] Deduced a trap composed of 16 places in 53 ms of which 6 ms to minimize.
[2026-05-24 13:19:52] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:19:52] [INFO ] [Nat]Absence check using 2 positive place invariants in 1 ms returned sat
[2026-05-24 13:19:52] [INFO ] [Nat]Absence check using 2 positive and 13 generalized place invariants in 3 ms returned sat
[2026-05-24 13:19:52] [INFO ] [Nat]Absence check using state equation in 19 ms returned sat
[2026-05-24 13:19:52] [INFO ] [Nat]Added 7 Read/Feed constraints in 7 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:52] [INFO ] Deduced a trap composed of 16 places in 47 ms of which 5 ms to minimize.
[2026-05-24 13:19:52] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 54 ms
[2026-05-24 13:19:52] [INFO ] Computed and/alt/rep : 66/284/66 causal constraints (skipped 3 transitions) in 8 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:52] [INFO ] Deduced a trap composed of 14 places in 51 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:52] [INFO ] Deduced a trap composed of 17 places in 48 ms of which 7 ms to minimize.
[2026-05-24 13:19:52] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 131 ms
[2026-05-24 13:19:52] [INFO ] Added : 66 causal constraints over 14 iterations in 293 ms. Result :sat
Minimization took 57 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[4, 0, 0, 0, 0, 0, 4, 0, 0, 0] Max Struct:[+inf, +inf, 1, +inf, 1, 1, +inf, 12, 1, 1]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[4, 0, 0, 0, 0, 0, 4, 0, 0, 0] Max Struct:[+inf, +inf, 1, +inf, 1, 1, +inf, 12, 1, 1]
Support contains 10 out of 77 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 77/77 places, 70/70 transitions.
Applied a total of 0 rules in 3 ms. Remains 77 /77 variables (removed 0) and now considering 70/70 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 3 ms. Remains : 77/77 places, 70/70 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 77/77 places, 70/70 transitions.
Applied a total of 0 rules in 2 ms. Remains 77 /77 variables (removed 0) and now considering 70/70 (removed 0) transitions.
[2026-05-24 13:19:52] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 13:19:52] [INFO ] Implicit Places using invariants in 68 ms returned [14, 23, 43, 48, 66, 74]
[2026-05-24 13:19:52] [INFO ] Actually due to overlaps returned [48, 43]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 71 ms to find 2 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 1 : 75/77 places, 70/70 transitions.
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 75 transition count 69
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 74 transition count 69
Applied a total of 2 rules in 5 ms. Remains 74 /75 variables (removed 1) and now considering 69/70 (removed 1) transitions.
// Phase 1: matrix 69 rows 74 cols
[2026-05-24 13:19:52] [INFO ] Computed 13 invariants in 1 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 13:19:52] [INFO ] Implicit Places using invariants in 55 ms returned [14, 23, 63, 71]
[2026-05-24 13:19:52] [INFO ] Actually due to overlaps returned [63, 14]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 55 ms to find 2 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 2 : 72/77 places, 69/70 transitions.
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 1 place count 71 transition count 68
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 71 transition count 68
Partial Free-agglomeration rule applied 1 times.
Drop transitions (Partial Free agglomeration) removed 1 transitions
Iterating global reduction 0 with 1 rules applied. Total rules applied 3 place count 71 transition count 68
Applied a total of 3 rules in 7 ms. Remains 71 /72 variables (removed 1) and now considering 68/69 (removed 1) transitions.
// Phase 1: matrix 68 rows 71 cols
[2026-05-24 13:19:52] [INFO ] Computed 11 invariants in 1 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 13:19:52] [INFO ] Implicit Places using invariants in 57 ms returned [68]
Discarding 1 places :
Implicit Place search using SMT only with invariants took 58 ms to find 1 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 3 : 70/77 places, 68/70 transitions.
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 70 transition count 67
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 69 transition count 67
Applied a total of 2 rules in 7 ms. Remains 69 /70 variables (removed 1) and now considering 67/68 (removed 1) transitions.
// Phase 1: matrix 67 rows 69 cols
[2026-05-24 13:19:52] [INFO ] Computed 10 invariants in 1 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 13:19:53] [INFO ] Implicit Places using invariants in 51 ms returned []
[2026-05-24 13:19:53] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 13:19:53] [INFO ] State equation strengthened by 6 read => feed constraints.
[2026-05-24 13:19:53] [INFO ] Implicit Places using invariants and state equation in 115 ms returned []
Implicit Place search using SMT with State Equation took 168 ms to find 0 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 4 : 69/77 places, 67/70 transitions.
Finished structural reductions in REACHABILITY mode , in 4 iterations and 378 ms. Remains : 69/77 places, 67/70 transitions.
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {0=1, 14=1, 15=1, 27=1, 33=1, 37=1, 51=1, 60=1, 63=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {0=1, 14=1, 15=1, 27=1, 33=1, 37=1, 51=1, 60=1, 63=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 1292 resets, run finished after 23 ms. (steps per millisecond=434 ) properties (out of 10) seen :[4, 0, 0, 0, 0, 0, 1, 0, 0, 0]
Current structural bounds on expressions (after cover walk) : Max Seen:[4, 0, 0, 0, 0, 0, 4, 0, 0, 0] Max Struct:[+inf, +inf, 1, +inf, 1, 1, +inf, 12, 1, 1]
[2026-05-24 13:19:53] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[4, 0, 0, 0, 0, 0, 4, 0, 0, 0] Max Struct:[+inf, +inf, 1, +inf, 1, 1, +inf, 1, 1, 1]
RANDOM walk for 1000000 steps (124585 resets) in 626 ms. (1594 steps per ms)
BEST_FIRST walk for 10000005 steps (833080 resets) in 4657 ms. (2146 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[4, 0, 0, 0, 0, 0, 4, 0, 0, 0] Max Struct:[+inf, +inf, 1, +inf, 1, 1, +inf, 1, 1, 1]
[2026-05-24 13:19:58] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:19:58] [INFO ] [Real]Absence check using 6 positive place invariants in 2 ms returned sat
[2026-05-24 13:19:58] [INFO ] [Real]Absence check using 6 positive and 4 generalized place invariants in 0 ms returned sat
[2026-05-24 13:19:58] [INFO ] [Real]Absence check using state equation in 16 ms returned sat
[2026-05-24 13:19:58] [INFO ] State equation strengthened by 6 read => feed constraints.
[2026-05-24 13:19:58] [INFO ] [Real]Added 6 Read/Feed constraints in 6 ms returned sat
[2026-05-24 13:19:58] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:19:58] [INFO ] [Nat]Absence check using 6 positive place invariants in 2 ms returned sat
[2026-05-24 13:19:58] [INFO ] [Nat]Absence check using 6 positive and 4 generalized place invariants in 1 ms returned sat
[2026-05-24 13:19:58] [INFO ] [Nat]Absence check using state equation in 14 ms returned sat
[2026-05-24 13:19:58] [INFO ] [Nat]Added 6 Read/Feed constraints in 3 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:58] [INFO ] Deduced a trap composed of 5 places in 45 ms of which 2 ms to minimize.
[2026-05-24 13:19:58] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 53 ms
[2026-05-24 13:19:58] [INFO ] Computed and/alt/rep : 65/281/65 causal constraints (skipped 1 transitions) in 6 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:58] [INFO ] Deduced a trap composed of 23 places in 45 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:58] [INFO ] Deduced a trap composed of 23 places in 40 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:58] [INFO ] Deduced a trap composed of 10 places in 44 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:59] [INFO ] Deduced a trap composed of 25 places in 43 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:59] [INFO ] Deduced a trap composed of 29 places in 41 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:59] [INFO ] Deduced a trap composed of 29 places in 43 ms of which 3 ms to minimize.
[2026-05-24 13:19:59] [INFO ] Trap strengthening (SAT) tested/added 7/6 trap constraints in 338 ms
[2026-05-24 13:19:59] [INFO ] Added : 34 causal constraints over 8 iterations in 441 ms. Result :sat
Minimization took 50 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:19:59] [INFO ] [Real]Absence check using 6 positive place invariants in 2 ms returned sat
[2026-05-24 13:19:59] [INFO ] [Real]Absence check using 6 positive and 4 generalized place invariants in 1 ms returned sat
[2026-05-24 13:19:59] [INFO ] [Real]Absence check using state equation in 17 ms returned sat
[2026-05-24 13:19:59] [INFO ] [Real]Added 6 Read/Feed constraints in 6 ms returned sat
[2026-05-24 13:19:59] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:19:59] [INFO ] [Nat]Absence check using 6 positive place invariants in 2 ms returned sat
[2026-05-24 13:19:59] [INFO ] [Nat]Absence check using 6 positive and 4 generalized place invariants in 1 ms returned sat
[2026-05-24 13:19:59] [INFO ] [Nat]Absence check using state equation in 19 ms returned sat
[2026-05-24 13:19:59] [INFO ] [Nat]Added 6 Read/Feed constraints in 8 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:59] [INFO ] Deduced a trap composed of 16 places in 49 ms of which 6 ms to minimize.
[2026-05-24 13:19:59] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 58 ms
[2026-05-24 13:19:59] [INFO ] Computed and/alt/rep : 65/281/65 causal constraints (skipped 1 transitions) in 5 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:59] [INFO ] Deduced a trap composed of 10 places in 46 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:59] [INFO ] Deduced a trap composed of 21 places in 49 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:59] [INFO ] Deduced a trap composed of 21 places in 43 ms of which 5 ms to minimize.
[2026-05-24 13:19:59] [INFO ] Trap strengthening (SAT) tested/added 4/3 trap constraints in 172 ms
[2026-05-24 13:19:59] [INFO ] Added : 53 causal constraints over 11 iterations in 292 ms. Result :sat
Minimization took 57 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:19:59] [INFO ] [Real]Absence check using 6 positive place invariants in 2 ms returned sat
[2026-05-24 13:19:59] [INFO ] [Real]Absence check using 6 positive and 4 generalized place invariants in 1 ms returned sat
[2026-05-24 13:19:59] [INFO ] [Real]Absence check using state equation in 20 ms returned sat
[2026-05-24 13:19:59] [INFO ] [Real]Added 6 Read/Feed constraints in 3 ms returned sat
[2026-05-24 13:19:59] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:19:59] [INFO ] [Nat]Absence check using 6 positive place invariants in 2 ms returned sat
[2026-05-24 13:19:59] [INFO ] [Nat]Absence check using 6 positive and 4 generalized place invariants in 1 ms returned sat
[2026-05-24 13:19:59] [INFO ] [Nat]Absence check using state equation in 17 ms returned sat
[2026-05-24 13:19:59] [INFO ] [Nat]Added 6 Read/Feed constraints in 3 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:59] [INFO ] Deduced a trap composed of 19 places in 45 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:59] [INFO ] Deduced a trap composed of 16 places in 41 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:59] [INFO ] Deduced a trap composed of 21 places in 39 ms of which 5 ms to minimize.
[2026-05-24 13:19:59] [INFO ] Trap strengthening (SAT) tested/added 4/3 trap constraints in 138 ms
[2026-05-24 13:19:59] [INFO ] Computed and/alt/rep : 65/281/65 causal constraints (skipped 1 transitions) in 4 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:00] [INFO ] Deduced a trap composed of 9 places in 38 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:00] [INFO ] Deduced a trap composed of 11 places in 45 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:00] [INFO ] Deduced a trap composed of 24 places in 41 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:00] [INFO ] Deduced a trap composed of 26 places in 39 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:00] [INFO ] Deduced a trap composed of 26 places in 37 ms of which 5 ms to minimize.
[2026-05-24 13:20:00] [INFO ] Trap strengthening (SAT) tested/added 6/5 trap constraints in 254 ms
[2026-05-24 13:20:00] [INFO ] Added : 64 causal constraints over 13 iterations in 375 ms. Result :sat
Minimization took 51 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:20:00] [INFO ] [Real]Absence check using 6 positive place invariants in 2 ms returned sat
[2026-05-24 13:20:00] [INFO ] [Real]Absence check using 6 positive and 4 generalized place invariants in 0 ms returned sat
[2026-05-24 13:20:00] [INFO ] [Real]Absence check using state equation in 15 ms returned sat
[2026-05-24 13:20:00] [INFO ] [Real]Added 6 Read/Feed constraints in 3 ms returned sat
[2026-05-24 13:20:00] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:20:00] [INFO ] [Nat]Absence check using 6 positive place invariants in 1 ms returned sat
[2026-05-24 13:20:00] [INFO ] [Nat]Absence check using 6 positive and 4 generalized place invariants in 0 ms returned sat
[2026-05-24 13:20:00] [INFO ] [Nat]Absence check using state equation in 14 ms returned sat
[2026-05-24 13:20:00] [INFO ] [Nat]Added 6 Read/Feed constraints in 4 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:00] [INFO ] Deduced a trap composed of 16 places in 42 ms of which 7 ms to minimize.
[2026-05-24 13:20:00] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 50 ms
[2026-05-24 13:20:00] [INFO ] Computed and/alt/rep : 65/281/65 causal constraints (skipped 1 transitions) in 4 ms.
[2026-05-24 13:20:00] [INFO ] Added : 57 causal constraints over 12 iterations in 112 ms. Result :sat
Minimization took 40 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:20:00] [INFO ] [Real]Absence check using 6 positive place invariants in 2 ms returned sat
[2026-05-24 13:20:00] [INFO ] [Real]Absence check using 6 positive and 4 generalized place invariants in 0 ms returned sat
[2026-05-24 13:20:00] [INFO ] [Real]Absence check using state equation in 18 ms returned sat
[2026-05-24 13:20:00] [INFO ] [Real]Added 6 Read/Feed constraints in 3 ms returned sat
[2026-05-24 13:20:00] [INFO ] Computed and/alt/rep : 65/281/65 causal constraints (skipped 1 transitions) in 3 ms.
[2026-05-24 13:20:00] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:20:00] [INFO ] [Nat]Absence check using 6 positive place invariants in 3 ms returned sat
[2026-05-24 13:20:00] [INFO ] [Nat]Absence check using 6 positive and 4 generalized place invariants in 1 ms returned sat
[2026-05-24 13:20:00] [INFO ] [Nat]Absence check using state equation in 17 ms returned sat
[2026-05-24 13:20:00] [INFO ] [Nat]Added 6 Read/Feed constraints in 2 ms returned sat
[2026-05-24 13:20:00] [INFO ] Computed and/alt/rep : 65/281/65 causal constraints (skipped 1 transitions) in 4 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:00] [INFO ] Deduced a trap composed of 10 places in 43 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:01] [INFO ] Deduced a trap composed of 21 places in 45 ms of which 6 ms to minimize.
[2026-05-24 13:20:01] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 121 ms
[2026-05-24 13:20:01] [INFO ] Added : 63 causal constraints over 13 iterations in 240 ms. Result :sat
Minimization took 50 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:20:01] [INFO ] [Real]Absence check using 6 positive place invariants in 2 ms returned sat
[2026-05-24 13:20:01] [INFO ] [Real]Absence check using 6 positive and 4 generalized place invariants in 1 ms returned sat
[2026-05-24 13:20:01] [INFO ] [Real]Absence check using state equation in 16 ms returned sat
[2026-05-24 13:20:01] [INFO ] [Real]Added 6 Read/Feed constraints in 3 ms returned sat
[2026-05-24 13:20:01] [INFO ] Computed and/alt/rep : 65/281/65 causal constraints (skipped 1 transitions) in 3 ms.
[2026-05-24 13:20:01] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:20:01] [INFO ] [Nat]Absence check using 6 positive place invariants in 2 ms returned sat
[2026-05-24 13:20:01] [INFO ] [Nat]Absence check using 6 positive and 4 generalized place invariants in 1 ms returned sat
[2026-05-24 13:20:01] [INFO ] [Nat]Absence check using state equation in 16 ms returned sat
[2026-05-24 13:20:01] [INFO ] [Nat]Added 6 Read/Feed constraints in 4 ms returned sat
[2026-05-24 13:20:01] [INFO ] Computed and/alt/rep : 65/281/65 causal constraints (skipped 1 transitions) in 3 ms.
[2026-05-24 13:20:01] [INFO ] Added : 62 causal constraints over 13 iterations in 122 ms. Result :sat
Minimization took 44 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:20:01] [INFO ] [Real]Absence check using 6 positive place invariants in 2 ms returned sat
[2026-05-24 13:20:01] [INFO ] [Real]Absence check using 6 positive and 4 generalized place invariants in 1 ms returned sat
[2026-05-24 13:20:01] [INFO ] [Real]Absence check using state equation in 17 ms returned sat
[2026-05-24 13:20:01] [INFO ] [Real]Added 6 Read/Feed constraints in 8 ms returned sat
[2026-05-24 13:20:01] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:20:01] [INFO ] [Nat]Absence check using 6 positive place invariants in 2 ms returned sat
[2026-05-24 13:20:01] [INFO ] [Nat]Absence check using 6 positive and 4 generalized place invariants in 2 ms returned sat
[2026-05-24 13:20:01] [INFO ] [Nat]Absence check using state equation in 22 ms returned sat
[2026-05-24 13:20:01] [INFO ] [Nat]Added 6 Read/Feed constraints in 11 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:01] [INFO ] Deduced a trap composed of 5 places in 34 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:01] [INFO ] Deduced a trap composed of 10 places in 35 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:01] [INFO ] Deduced a trap composed of 3 places in 43 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:01] [INFO ] Deduced a trap composed of 10 places in 43 ms of which 3 ms to minimize.
[2026-05-24 13:20:01] [INFO ] Trap strengthening (SAT) tested/added 5/4 trap constraints in 188 ms
[2026-05-24 13:20:01] [INFO ] Computed and/alt/rep : 65/281/65 causal constraints (skipped 1 transitions) in 4 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:01] [INFO ] Deduced a trap composed of 19 places in 47 ms of which 5 ms to minimize.
[2026-05-24 13:20:01] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 56 ms
[2026-05-24 13:20:01] [INFO ] Added : 57 causal constraints over 12 iterations in 189 ms. Result :sat
Minimization took 46 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:20:01] [INFO ] [Real]Absence check using 6 positive place invariants in 2 ms returned sat
[2026-05-24 13:20:01] [INFO ] [Real]Absence check using 6 positive and 4 generalized place invariants in 1 ms returned sat
[2026-05-24 13:20:02] [INFO ] [Real]Absence check using state equation in 20 ms returned sat
[2026-05-24 13:20:02] [INFO ] [Real]Added 6 Read/Feed constraints in 1 ms returned sat
[2026-05-24 13:20:02] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:20:02] [INFO ] [Nat]Absence check using 6 positive place invariants in 2 ms returned sat
[2026-05-24 13:20:02] [INFO ] [Nat]Absence check using 6 positive and 4 generalized place invariants in 0 ms returned sat
[2026-05-24 13:20:02] [INFO ] [Nat]Absence check using state equation in 16 ms returned sat
[2026-05-24 13:20:02] [INFO ] [Nat]Added 6 Read/Feed constraints in 5 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:02] [INFO ] Deduced a trap composed of 21 places in 49 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:02] [INFO ] Deduced a trap composed of 16 places in 40 ms of which 6 ms to minimize.
[2026-05-24 13:20:02] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 100 ms
[2026-05-24 13:20:02] [INFO ] Computed and/alt/rep : 65/281/65 causal constraints (skipped 1 transitions) in 4 ms.
[2026-05-24 13:20:02] [INFO ] Added : 59 causal constraints over 12 iterations in 114 ms. Result :sat
Minimization took 56 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:20:02] [INFO ] [Real]Absence check using 6 positive place invariants in 5 ms returned sat
[2026-05-24 13:20:02] [INFO ] [Real]Absence check using 6 positive and 4 generalized place invariants in 0 ms returned sat
[2026-05-24 13:20:02] [INFO ] [Real]Absence check using state equation in 17 ms returned sat
[2026-05-24 13:20:02] [INFO ] [Real]Added 6 Read/Feed constraints in 1 ms returned sat
[2026-05-24 13:20:02] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:20:02] [INFO ] [Nat]Absence check using 6 positive place invariants in 2 ms returned sat
[2026-05-24 13:20:02] [INFO ] [Nat]Absence check using 6 positive and 4 generalized place invariants in 1 ms returned sat
[2026-05-24 13:20:02] [INFO ] [Nat]Absence check using state equation in 18 ms returned sat
[2026-05-24 13:20:02] [INFO ] [Nat]Added 6 Read/Feed constraints in 2 ms returned sat
[2026-05-24 13:20:02] [INFO ] Computed and/alt/rep : 65/281/65 causal constraints (skipped 1 transitions) in 3 ms.
[2026-05-24 13:20:02] [INFO ] Added : 64 causal constraints over 13 iterations in 112 ms. Result :sat
Minimization took 49 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:20:02] [INFO ] [Real]Absence check using 6 positive place invariants in 2 ms returned sat
[2026-05-24 13:20:02] [INFO ] [Real]Absence check using 6 positive and 4 generalized place invariants in 1 ms returned sat
[2026-05-24 13:20:02] [INFO ] [Real]Absence check using state equation in 17 ms returned sat
[2026-05-24 13:20:02] [INFO ] [Real]Added 6 Read/Feed constraints in 4 ms returned sat
[2026-05-24 13:20:02] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:20:02] [INFO ] [Nat]Absence check using 6 positive place invariants in 2 ms returned sat
[2026-05-24 13:20:02] [INFO ] [Nat]Absence check using 6 positive and 4 generalized place invariants in 1 ms returned sat
[2026-05-24 13:20:02] [INFO ] [Nat]Absence check using state equation in 18 ms returned sat
[2026-05-24 13:20:02] [INFO ] [Nat]Added 6 Read/Feed constraints in 3 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:02] [INFO ] Deduced a trap composed of 19 places in 51 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:02] [INFO ] Deduced a trap composed of 21 places in 39 ms of which 5 ms to minimize.
[2026-05-24 13:20:02] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 101 ms
[2026-05-24 13:20:02] [INFO ] Computed and/alt/rep : 65/281/65 causal constraints (skipped 1 transitions) in 3 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:02] [INFO ] Deduced a trap composed of 10 places in 50 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:03] [INFO ] Deduced a trap composed of 19 places in 50 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:03] [INFO ] Deduced a trap composed of 19 places in 40 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:03] [INFO ] Deduced a trap composed of 21 places in 40 ms of which 5 ms to minimize.
[2026-05-24 13:20:03] [INFO ] Trap strengthening (SAT) tested/added 5/4 trap constraints in 245 ms
[2026-05-24 13:20:03] [INFO ] Added : 62 causal constraints over 13 iterations in 387 ms. Result :sat
Minimization took 55 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[4, 0, 0, 0, 0, 0, 4, 0, 0, 0] Max Struct:[+inf, +inf, 1, +inf, 1, 1, +inf, 1, 1, 1]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[4, 0, 0, 0, 0, 0, 4, 0, 0, 0] Max Struct:[+inf, +inf, 1, +inf, 1, 1, +inf, 1, 1, 1]
Support contains 10 out of 69 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 69/69 places, 67/67 transitions.
Applied a total of 0 rules in 2 ms. Remains 69 /69 variables (removed 0) and now considering 67/67 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 2 ms. Remains : 69/69 places, 67/67 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 69/69 places, 67/67 transitions.
Applied a total of 0 rules in 3 ms. Remains 69 /69 variables (removed 0) and now considering 67/67 (removed 0) transitions.
[2026-05-24 13:20:03] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 13:20:03] [INFO ] Implicit Places using invariants in 49 ms returned []
[2026-05-24 13:20:03] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 13:20:03] [INFO ] State equation strengthened by 6 read => feed constraints.
[2026-05-24 13:20:03] [INFO ] Implicit Places using invariants and state equation in 109 ms returned []
Implicit Place search using SMT with State Equation took 159 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-24 13:20:03] [INFO ] Redundant transitions in 1 ms returned []
Running 66 sub problems to find dead transitions.
[2026-05-24 13:20:03] [INFO ] Invariant cache hit.
[2026-05-24 13:20:03] [INFO ] State equation strengthened by 6 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/68 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 66 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/68 variables, 4/6 constraints. Problems are: Problem set: 0 solved, 66 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/68 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 66 unsolved
At refinement iteration 3 (OVERLAPS) 1/69 variables, 4/10 constraints. Problems are: Problem set: 0 solved, 66 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:04] [INFO ] Deduced a trap composed of 34 places in 43 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:04] [INFO ] Deduced a trap composed of 32 places in 51 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:04] [INFO ] Deduced a trap composed of 11 places in 42 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:04] [INFO ] Deduced a trap composed of 16 places in 49 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:04] [INFO ] Deduced a trap composed of 34 places in 39 ms of which 4 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/69 variables, 5/15 constraints. Problems are: Problem set: 0 solved, 66 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/69 variables, 0/15 constraints. Problems are: Problem set: 0 solved, 66 unsolved
At refinement iteration 6 (OVERLAPS) 67/136 variables, 69/84 constraints. Problems are: Problem set: 0 solved, 66 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/136 variables, 6/90 constraints. Problems are: Problem set: 0 solved, 66 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:04] [INFO ] Deduced a trap composed of 13 places in 29 ms of which 2 ms to minimize.
At refinement iteration 8 (INCLUDED_ONLY) 0/136 variables, 1/91 constraints. Problems are: Problem set: 0 solved, 66 unsolved
All remaining problems are real, not stopping.
At refinement iteration 9 (INCLUDED_ONLY) 0/136 variables, 0/91 constraints. Problems are: Problem set: 0 solved, 66 unsolved
At refinement iteration 10 (OVERLAPS) 0/136 variables, 0/91 constraints. Problems are: Problem set: 0 solved, 66 unsolved
No progress, stopping.
After SMT solving in domain Real declared 136/136 variables, and 91 constraints, problems are : Problem set: 0 solved, 66 unsolved in 1934 ms.
Refiners :[Positive P Invariants (semi-flows): 6/6 constraints, Generalized P Invariants (flows): 4/4 constraints, State Equation: 69/69 constraints, ReadFeed: 6/6 constraints, PredecessorRefiner: 66/66 constraints, Known Traps: 6/6 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 66 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/68 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 66 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/68 variables, 4/6 constraints. Problems are: Problem set: 0 solved, 66 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/68 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 66 unsolved
At refinement iteration 3 (OVERLAPS) 1/69 variables, 4/10 constraints. Problems are: Problem set: 0 solved, 66 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/69 variables, 6/16 constraints. Problems are: Problem set: 0 solved, 66 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/69 variables, 0/16 constraints. Problems are: Problem set: 0 solved, 66 unsolved
At refinement iteration 6 (OVERLAPS) 67/136 variables, 69/85 constraints. Problems are: Problem set: 0 solved, 66 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/136 variables, 6/91 constraints. Problems are: Problem set: 0 solved, 66 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/136 variables, 66/157 constraints. Problems are: Problem set: 0 solved, 66 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:06] [INFO ] Deduced a trap composed of 23 places in 44 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:06] [INFO ] Deduced a trap composed of 38 places in 47 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:06] [INFO ] Deduced a trap composed of 33 places in 42 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:06] [INFO ] Deduced a trap composed of 37 places in 42 ms of which 4 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/136 variables, 4/161 constraints. Problems are: Problem set: 0 solved, 66 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:06] [INFO ] Deduced a trap composed of 26 places in 43 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:07] [INFO ] Deduced a trap composed of 8 places in 45 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:07] [INFO ] Deduced a trap composed of 14 places in 36 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:07] [INFO ] Deduced a trap composed of 28 places in 43 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:07] [INFO ] Deduced a trap composed of 38 places in 44 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:07] [INFO ] Deduced a trap composed of 10 places in 41 ms of which 2 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/136 variables, 6/167 constraints. Problems are: Problem set: 0 solved, 66 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:08] [INFO ] Deduced a trap composed of 36 places in 42 ms of which 4 ms to minimize.
At refinement iteration 11 (INCLUDED_ONLY) 0/136 variables, 1/168 constraints. Problems are: Problem set: 0 solved, 66 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:08] [INFO ] Deduced a trap composed of 35 places in 42 ms of which 4 ms to minimize.
At refinement iteration 12 (INCLUDED_ONLY) 0/136 variables, 1/169 constraints. Problems are: Problem set: 0 solved, 66 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/136 variables, 0/169 constraints. Problems are: Problem set: 0 solved, 66 unsolved
At refinement iteration 14 (OVERLAPS) 0/136 variables, 0/169 constraints. Problems are: Problem set: 0 solved, 66 unsolved
No progress, stopping.
After SMT solving in domain Int declared 136/136 variables, and 169 constraints, problems are : Problem set: 0 solved, 66 unsolved in 5383 ms.
Refiners :[Positive P Invariants (semi-flows): 6/6 constraints, Generalized P Invariants (flows): 4/4 constraints, State Equation: 69/69 constraints, ReadFeed: 6/6 constraints, PredecessorRefiner: 66/66 constraints, Known Traps: 18/18 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 7349ms problems are : Problem set: 0 solved, 66 unsolved
Search for dead transitions found 0 dead transitions in 7355ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 7531 ms. Remains : 69/69 places, 67/67 transitions.
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {0=1, 14=1, 15=1, 27=1, 33=1, 37=1, 51=1, 60=1, 63=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {0=1, 14=1, 15=1, 27=1, 33=1, 37=1, 51=1, 60=1, 63=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 1242 resets, run finished after 19 ms. (steps per millisecond=526 ) properties (out of 10) seen :[4, 0, 0, 0, 0, 0, 3, 0, 0, 0]
Current structural bounds on expressions (after cover walk) : Max Seen:[4, 0, 0, 0, 0, 0, 4, 0, 0, 0] Max Struct:[+inf, +inf, 1, +inf, 1, 1, +inf, 1, 1, 1]
[2026-05-24 13:20:11] [INFO ] Flatten gal took : 28 ms
[2026-05-24 13:20:11] [INFO ] Flatten gal took : 14 ms
[2026-05-24 13:20:11] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality15858787305346366033.gal : 6 ms
[2026-05-24 13:20:11] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality7854905331051242360.prop : 0 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality15858787305346366033.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality7854905331051242360.prop' '--nowitness' '--gen-order' 'FOLLOW'
RANDOM walk for 40000 steps (5015 resets) in 1031 ms. (38 steps per ms) remains 16/16 properties

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...329
Loading property file /tmp/ReachabilityCardinality7854905331051242360.prop.
BEST_FIRST walk for 4002 steps (347 resets) in 98 ms. (40 steps per ms) remains 16/16 properties
SDD proceeding with computation,16 properties remain. new max is 4
SDD size :1 after 3
SDD proceeding with computation,16 properties remain. new max is 8
SDD size :3 after 7
SDD proceeding with computation,16 properties remain. new max is 16
SDD size :7 after 9
SDD proceeding with computation,16 properties remain. new max is 32
SDD size :9 after 15
SDD proceeding with computation,16 properties remain. new max is 64
SDD size :15 after 23
SDD proceeding with computation,16 properties remain. new max is 128
SDD size :23 after 43
SDD proceeding with computation,16 properties remain. new max is 256
SDD size :43 after 92
Invariant property MIN5 does not hold.
Reachability property MAX5 is true.
SDD proceeding with computation,14 properties remain. new max is 256
SDD size :92 after 398
SDD proceeding with computation,14 properties remain. new max is 512
SDD size :398 after 848
BEST_FIRST walk for 4002 steps (321 resets) in 117 ms. (33 steps per ms) remains 16/16 properties
Invariant property MIN9 does not hold.
Reachability property MAX9 is true.
Invariant property MIN7 does not hold.
Reachability property MAX7 is true.
Invariant property MIN4 does not hold.
Reachability property MAX4 is true.
Invariant property MIN3 does not hold.
Invariant property MIN2 does not hold.
Reachability property MAX2 is true.
Invariant property MIN1 does not hold.
SDD proceeding with computation,4 properties remain. new max is 512
SDD size :1505 after 1512
SDD proceeding with computation,4 properties remain. new max is 1024
SDD size :2731 after 3204
BEST_FIRST walk for 4001 steps (339 resets) in 93 ms. (42 steps per ms) remains 16/16 properties
SDD proceeding with computation,4 properties remain. new max is 2048
SDD size :7226 after 7973
BEST_FIRST walk for 4001 steps (320 resets) in 78 ms. (50 steps per ms) remains 16/16 properties
BEST_FIRST walk for 4000 steps (335 resets) in 38 ms. (102 steps per ms) remains 16/16 properties
BEST_FIRST walk for 4000 steps (335 resets) in 25 ms. (153 steps per ms) remains 16/16 properties
SDD proceeding with computation,4 properties remain. new max is 4096
BEST_FIRST walk for 4002 steps (332 resets) in 24 ms. (160 steps per ms) remains 16/16 properties
SDD size :16671 after 21152
BEST_FIRST walk for 4002 steps (320 resets) in 15 ms. (250 steps per ms) remains 16/16 properties
BEST_FIRST walk for 4002 steps (328 resets) in 21 ms. (181 steps per ms) remains 16/16 properties
BEST_FIRST walk for 4002 steps (331 resets) in 21 ms. (181 steps per ms) remains 16/16 properties
BEST_FIRST walk for 4002 steps (358 resets) in 22 ms. (174 steps per ms) remains 16/16 properties
BEST_FIRST walk for 4000 steps (348 resets) in 18 ms. (210 steps per ms) remains 16/16 properties
BEST_FIRST walk for 4002 steps (354 resets) in 19 ms. (200 steps per ms) remains 16/16 properties
BEST_FIRST walk for 4001 steps (322 resets) in 36 ms. (108 steps per ms) remains 16/16 properties
BEST_FIRST walk for 4001 steps (347 resets) in 18 ms. (210 steps per ms) remains 16/16 properties
BEST_FIRST walk for 4003 steps (331 resets) in 17 ms. (222 steps per ms) remains 16/16 properties
Invariant property MIN8 does not hold.
Reachability property MAX8 is true.
SDD proceeding with computation,2 properties remain. new max is 4096
SDD size :49416 after 49439
SDD proceeding with computation,2 properties remain. new max is 8192
SDD size :64582 after 65460
SDD proceeding with computation,2 properties remain. new max is 16384
SDD size :101126 after 102208
SDD proceeding with computation,2 properties remain. new max is 32768
SDD size :170771 after 174615
SDD proceeding with computation,2 properties remain. new max is 65536
SDD size :316716 after 318827
Interrupted probabilistic random walk after 712698 steps, run timeout after 3001 ms. (steps per millisecond=237 ) properties seen :14 out of 16
Probabilistic random walk after 712698 steps, saw 356474 distinct states, run finished after 3004 ms. (steps per millisecond=237 ) properties seen :14
[2026-05-24 13:20:14] [INFO ] Invariant cache hit.
[2026-05-24 13:20:14] [INFO ] State equation strengthened by 6 read => feed constraints.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 1 (OVERLAPS) 7/9 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/9 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 3 (OVERLAPS) 45/54 variables, 3/5 constraints. Problems are: Problem set: 0 solved, 2 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:14] [INFO ] Deduced a trap composed of 8 places in 38 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:14] [INFO ] Deduced a trap composed of 10 places in 31 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:14] [INFO ] Deduced a trap composed of 28 places in 33 ms of which 3 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/54 variables, 3/8 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/54 variables, 0/8 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 6 (OVERLAPS) 4/58 variables, 1/9 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/58 variables, 0/9 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 8 (OVERLAPS) 6/64 variables, 2/11 constraints. Problems are: Problem set: 0 solved, 2 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:14] [INFO ] Deduced a trap composed of 8 places in 25 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:14] [INFO ] Deduced a trap composed of 11 places in 24 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:14] [INFO ] Deduced a trap composed of 18 places in 23 ms of which 2 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/64 variables, 3/14 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/64 variables, 0/14 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 11 (OVERLAPS) 67/131 variables, 64/78 constraints. Problems are: Problem set: 0 solved, 2 unsolved
All remaining problems are real, not stopping.
At refinement iteration 12 (INCLUDED_ONLY) 0/131 variables, 6/84 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/131 variables, 0/84 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 14 (OVERLAPS) 5/136 variables, 5/89 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/136 variables, 2/91 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/136 variables, 0/91 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 17 (OVERLAPS) 0/136 variables, 0/91 constraints. Problems are: Problem set: 0 solved, 2 unsolved
No progress, stopping.
After SMT solving in domain Real declared 136/136 variables, and 91 constraints, problems are : Problem set: 0 solved, 2 unsolved in 295 ms.
Refiners :[Positive P Invariants (semi-flows): 6/6 constraints, Generalized P Invariants (flows): 4/4 constraints, State Equation: 69/69 constraints, ReadFeed: 6/6 constraints, PredecessorRefiner: 2/2 constraints, Known Traps: 6/6 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) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 1 (OVERLAPS) 7/9 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/9 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 3 (OVERLAPS) 45/54 variables, 3/5 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/54 variables, 3/8 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/54 variables, 0/8 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 6 (OVERLAPS) 4/58 variables, 1/9 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/58 variables, 0/9 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 8 (OVERLAPS) 6/64 variables, 2/11 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/64 variables, 3/14 constraints. Problems are: Problem set: 0 solved, 2 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:14] [INFO ] Deduced a trap composed of 21 places in 37 ms of which 3 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/64 variables, 1/15 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/64 variables, 0/15 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 12 (OVERLAPS) 67/131 variables, 64/79 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/131 variables, 6/85 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/131 variables, 2/87 constraints. Problems are: Problem set: 0 solved, 2 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:15] [INFO ] Deduced a trap composed of 10 places in 30 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:15] [INFO ] Deduced a trap composed of 16 places in 34 ms of which 2 ms to minimize.
At refinement iteration 15 (INCLUDED_ONLY) 0/131 variables, 2/89 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/131 variables, 0/89 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 17 (OVERLAPS) 5/136 variables, 5/94 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/136 variables, 2/96 constraints. Problems are: Problem set: 0 solved, 2 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:15] [INFO ] Deduced a trap along path composed of 5 places in 20 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:15] [INFO ] Deduced a trap along path composed of 16 places in 25 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:15] [INFO ] Deduced a trap along path composed of 11 places in 36 ms of which 1 ms to minimize.
At refinement iteration 19 (INCLUDED_ONLY) 0/136 variables, 3/99 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/136 variables, 0/99 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 21 (OVERLAPS) 0/136 variables, 0/99 constraints. Problems are: Problem set: 0 solved, 2 unsolved
No progress, stopping.
After SMT solving in domain Int declared 136/136 variables, and 99 constraints, problems are : Problem set: 0 solved, 2 unsolved in 454 ms.
Refiners :[Positive P Invariants (semi-flows): 6/6 constraints, Generalized P Invariants (flows): 4/4 constraints, State Equation: 69/69 constraints, ReadFeed: 6/6 constraints, PredecessorRefiner: 2/2 constraints, Known Traps: 9/9 constraints, Known Traps Along Path: 3/3 constraints]
After SMT, in 755ms problems are : Problem set: 0 solved, 2 unsolved
Parikh walk visited 0 properties in 294 ms.
Support contains 2 out of 69 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 69/69 places, 67/67 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 1 transitions
Trivial Post-agglo rules discarded 1 transitions
Performed 1 trivial Post agglomeration. Transition count delta: 1
Iterating post reduction 0 with 1 rules applied. Total rules applied 1 place count 69 transition count 66
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 1 with 1 rules applied. Total rules applied 2 place count 68 transition count 66
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 1 Pre rules applied. Total rules applied 2 place count 68 transition count 65
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 2 with 2 rules applied. Total rules applied 4 place count 67 transition count 65
Performed 4 Post agglomeration using F-continuation condition.Transition count delta: 4
Deduced a syphon composed of 4 places in 0 ms
Reduce places removed 4 places and 0 transitions.
Iterating global reduction 2 with 8 rules applied. Total rules applied 12 place count 63 transition count 61
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 2 with 1 rules applied. Total rules applied 13 place count 63 transition count 60
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 2 with 1 rules applied. Total rules applied 14 place count 62 transition count 60
Partial Free-agglomeration rule applied 1 times.
Drop transitions (Partial Free agglomeration) removed 1 transitions
Iterating global reduction 3 with 1 rules applied. Total rules applied 15 place count 62 transition count 60
Applied a total of 15 rules in 14 ms. Remains 62 /69 variables (removed 7) and now considering 60/67 (removed 7) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 14 ms. Remains : 62/69 places, 60/67 transitions.
RANDOM walk for 40000 steps (4946 resets) in 111 ms. (357 steps per ms) remains 2/2 properties
BEST_FIRST walk for 40003 steps (3365 resets) in 83 ms. (476 steps per ms) remains 2/2 properties
BEST_FIRST walk for 40000 steps (3301 resets) in 71 ms. (555 steps per ms) remains 2/2 properties
SDD proceeding with computation,2 properties remain. new max is 131072
SDD size :607630 after 607637
Probably explored full state space saw : 244131 states, properties seen :0
Probabilistic random walk after 488270 steps, saw 244131 distinct states, run finished after 1919 ms. (steps per millisecond=254 ) properties seen :0
Interrupted probabilistic random walk after 780893 steps, run timeout after 3007 ms. (steps per millisecond=259 ) properties seen :0 out of 2
Exhaustive walk after 780893 steps, saw 390582 distinct states, run finished after 3007 ms. (steps per millisecond=259 ) properties seen :0
// Phase 1: matrix 60 rows 62 cols
[2026-05-24 13:20:20] [INFO ] Computed 10 invariants in 1 ms
[2026-05-24 13:20:20] [INFO ] State equation strengthened by 8 read => feed constraints.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 1 (OVERLAPS) 7/9 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/9 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 3 (OVERLAPS) 38/47 variables, 3/5 constraints. Problems are: Problem set: 0 solved, 2 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:20] [INFO ] Deduced a trap composed of 6 places in 40 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:20] [INFO ] Deduced a trap composed of 10 places in 30 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:20] [INFO ] Deduced a trap composed of 33 places in 31 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:20] [INFO ] Deduced a trap composed of 33 places in 30 ms of which 2 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/47 variables, 4/9 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/47 variables, 0/9 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 6 (OVERLAPS) 4/51 variables, 1/10 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/51 variables, 0/10 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 8 (OVERLAPS) 6/57 variables, 2/12 constraints. Problems are: Problem set: 0 solved, 2 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:20] [INFO ] Deduced a trap composed of 8 places in 24 ms of which 2 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/57 variables, 1/13 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/57 variables, 0/13 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 11 (OVERLAPS) 60/117 variables, 57/70 constraints. Problems are: Problem set: 0 solved, 2 unsolved
All remaining problems are real, not stopping.
At refinement iteration 12 (INCLUDED_ONLY) 0/117 variables, 8/78 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/117 variables, 0/78 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 14 (OVERLAPS) 5/122 variables, 5/83 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/122 variables, 2/85 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/122 variables, 0/85 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 17 (OVERLAPS) 0/122 variables, 0/85 constraints. Problems are: Problem set: 0 solved, 2 unsolved
No progress, stopping.
After SMT solving in domain Real declared 122/122 variables, and 85 constraints, problems are : Problem set: 0 solved, 2 unsolved in 273 ms.
Refiners :[Positive P Invariants (semi-flows): 6/6 constraints, Generalized P Invariants (flows): 4/4 constraints, State Equation: 62/62 constraints, ReadFeed: 8/8 constraints, PredecessorRefiner: 2/2 constraints, Known Traps: 5/5 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) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 1 (OVERLAPS) 7/9 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/9 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 2 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,815216,9.59327,244560,2,9685,42,1.00094e+06,8,0,347,1.00938e+06,0
Total reachable state count : 815216

Verifying 16 reachability properties.
Invariant property MIN0 is true.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
MIN0,0,9.59624,244560,1,0,42,1.00094e+06,8,0,348,1.00938e+06,0
Invariant property MIN1 does not hold.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
MIN1,22823,9.59731,244560,2,1546,42,1.00094e+06,9,0,350,1.00938e+06,0
Reachability property MAX2 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
MAX2,392,9.59787,244560,2,318,42,1.00094e+06,10,0,352,1.00938e+06,0
Invariant property MIN2 does not hold.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
MIN2,392,9.5983,244560,2,318,42,1.00094e+06,11,0,353,1.00938e+06,0
Invariant property MIN3 does not hold.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
MIN3,117328,9.59955,244560,2,2828,42,1.00094e+06,12,0,355,1.00938e+06,0
Reachability property MAX4 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
MAX4,256,9.59987,244560,2,175,42,1.00094e+06,13,0,357,1.00938e+06,0
Invariant property MIN4 does not hold.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
MIN4,256,9.60027,244560,2,175,42,1.00094e+06,14,0,358,1.00938e+06,0
Reachability property MAX5 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
MAX5,1,9.6006,244560,2,70,42,1.00094e+06,15,0,360,1.00938e+06,0
Invariant property MIN5 does not hold.

At refinement iteration 3 (OVERLAPS) 38/47 variables, 3/5 constraints. Problems are: Problem set: 1 solved, 1 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
MIN5,1,9.6008,244560,2,70,42,1.00094e+06,16,0,361,1.00938e+06,0
Invariant property MIN6 is true.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
MIN6,0,9.60293,244560,1,0,42,1.00094e+06,16,0,361,1.00938e+06,0
Reachability property MAX7 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
MAX7,864,9.60366,244560,2,553,42,1.00094e+06,17,0,363,1.00938e+06,0
Invariant property MIN7 does not hold.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
MIN7,864,9.60417,244560,2,553,42,1.00094e+06,18,0,364,1.00938e+06,0
Reachability property MAX8 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
MAX8,1,9.60444,244560,2,70,42,1.00094e+06,19,0,366,1.00938e+06,0
Invariant property MIN8 does not hold.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
MIN8,1,9.60485,244560,2,70,42,1.00094e+06,20,0,367,1.00938e+06,0
Reachability property MAX9 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
After SMT solving in domain Int declared 47/122 variables, and 9 constraints, problems are : Problem set: 2 solved, 0 unsolved in 37 ms.
Refiners :[Positive P Invariants (semi-flows): 3/6 constraints, Generalized P Invariants (flows): 2/4 constraints, State Equation: 0/62 constraints, ReadFeed: 0/8 constraints, PredecessorRefiner: 0/2 constraints, Known Traps: 4/5 constraints, Known Traps Along Path: 0/0 constraints]
MAX9,392,9.60525,244560,2,318,42,1.00094e+06,21,0,369,1.00938e+06,0
Invariant property MIN9 does not hold.

After SMT, in 316ms problems are : Problem set: 2 solved, 0 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
Skipping Parikh replay, no witness traces provided.
MIN9,392,9.60565,244560,2,318,42,1.00094e+06,22,0,370,1.00938e+06,0
ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
FORMULA DoubleExponent-PT-003-UpperBounds-15 1 TECHNIQUES REACHABILITY_MAX
FORMULA DoubleExponent-PT-003-UpperBounds-12 1 TECHNIQUES REACHABILITY_MAX
FORMULA DoubleExponent-PT-003-UpperBounds-11 1 TECHNIQUES REACHABILITY_MAX
FORMULA DoubleExponent-PT-003-UpperBounds-10 4 TECHNIQUES REACHABILITY_MIN
FORMULA DoubleExponent-PT-003-UpperBounds-08 1 TECHNIQUES REACHABILITY_MAX
FORMULA DoubleExponent-PT-003-UpperBounds-07 1 TECHNIQUES REACHABILITY_MAX
FORMULA DoubleExponent-PT-003-UpperBounds-02 1 TECHNIQUES REACHABILITY_MAX
FORMULA DoubleExponent-PT-003-UpperBounds-00 4 TECHNIQUES REACHABILITY_MIN
Current structural bounds on expressions (After reachability solving 8 queries.) : Max Seen:[0, 0] Max Struct:[+inf, +inf]
Starting property specific reduction for DoubleExponent-PT-003-UpperBounds-01
Current structural bounds on expressions (Initially) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (Adding known information on max bounds.) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (Before main loop) : Max Seen:[0] Max Struct:[+inf]
// Phase 1: matrix 67 rows 69 cols
[2026-05-24 13:20:21] [INFO ] Computed 10 invariants in 1 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[+inf]
RANDOM walk for 10000 steps (1234 resets) in 6 ms. (1428 steps per ms)
BEST_FIRST walk for 10000 steps (817 resets) in 5 ms. (1666 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0] Max Struct:[+inf]
[2026-05-24 13:20:21] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:20:21] [INFO ] [Real]Absence check using 6 positive place invariants in 2 ms returned sat
[2026-05-24 13:20:21] [INFO ] [Real]Absence check using 6 positive and 4 generalized place invariants in 1 ms returned sat
[2026-05-24 13:20:21] [INFO ] [Real]Absence check using state equation in 19 ms returned sat
[2026-05-24 13:20:21] [INFO ] State equation strengthened by 6 read => feed constraints.
[2026-05-24 13:20:21] [INFO ] [Real]Added 6 Read/Feed constraints in 6 ms returned sat
[2026-05-24 13:20:21] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:20:21] [INFO ] [Nat]Absence check using 6 positive place invariants in 2 ms returned sat
[2026-05-24 13:20:21] [INFO ] [Nat]Absence check using 6 positive and 4 generalized place invariants in 1 ms returned sat
[2026-05-24 13:20:21] [INFO ] [Nat]Absence check using state equation in 16 ms returned sat
[2026-05-24 13:20:21] [INFO ] [Nat]Added 6 Read/Feed constraints in 8 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:21] [INFO ] Deduced a trap composed of 16 places in 50 ms of which 6 ms to minimize.
[2026-05-24 13:20:21] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 57 ms
[2026-05-24 13:20:21] [INFO ] Computed and/alt/rep : 65/281/65 causal constraints (skipped 1 transitions) in 4 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:21] [INFO ] Deduced a trap composed of 10 places in 45 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:21] [INFO ] Deduced a trap composed of 21 places in 42 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:21] [INFO ] Deduced a trap composed of 21 places in 42 ms of which 5 ms to minimize.
[2026-05-24 13:20:21] [INFO ] Trap strengthening (SAT) tested/added 4/3 trap constraints in 167 ms
[2026-05-24 13:20:21] [INFO ] Added : 53 causal constraints over 11 iterations in 281 ms. Result :sat
Minimization took 51 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0] Max Struct:[+inf]
Support contains 1 out of 69 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 69/69 places, 67/67 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 1 transitions
Trivial Post-agglo rules discarded 1 transitions
Performed 1 trivial Post agglomeration. Transition count delta: 1
Iterating post reduction 0 with 1 rules applied. Total rules applied 1 place count 69 transition count 66
Reduce places removed 1 places and 0 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Iterating post reduction 1 with 2 rules applied. Total rules applied 3 place count 68 transition count 65
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 2 with 1 rules applied. Total rules applied 4 place count 67 transition count 65
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 1 Pre rules applied. Total rules applied 4 place count 67 transition count 64
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 3 with 2 rules applied. Total rules applied 6 place count 66 transition count 64
Performed 4 Post agglomeration using F-continuation condition.Transition count delta: 4
Deduced a syphon composed of 4 places in 0 ms
Reduce places removed 4 places and 0 transitions.
Iterating global reduction 3 with 8 rules applied. Total rules applied 14 place count 62 transition count 60
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 0
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 3 with 2 rules applied. Total rules applied 16 place count 61 transition count 60
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 3 with 1 rules applied. Total rules applied 17 place count 61 transition count 59
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 3 with 1 rules applied. Total rules applied 18 place count 60 transition count 59
Partial Free-agglomeration rule applied 1 times.
Drop transitions (Partial Free agglomeration) removed 1 transitions
Iterating global reduction 4 with 1 rules applied. Total rules applied 19 place count 60 transition count 59
Applied a total of 19 rules in 19 ms. Remains 60 /69 variables (removed 9) and now considering 59/67 (removed 8) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 19 ms. Remains : 60/69 places, 59/67 transitions.
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {6=1, 7=1, 14=1, 19=2, 20=1, 32=1, 34=2, 40=1, 41=1, 49=1, 53=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {6=1, 7=1, 14=1, 20=1, 32=1, 40=1, 41=1, 53=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 1552 resets, run finished after 18 ms. (steps per millisecond=555 ) properties (out of 1) seen :[0]
Current structural bounds on expressions (after cover walk) : Max Seen:[0] Max Struct:[+inf]
// Phase 1: matrix 59 rows 60 cols
[2026-05-24 13:20:21] [INFO ] Computed 10 invariants in 2 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[+inf]
RANDOM walk for 1000000 steps (156172 resets) in 673 ms. (1483 steps per ms)
BEST_FIRST walk for 1000000 steps (96332 resets) in 411 ms. (2427 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0] Max Struct:[+inf]
[2026-05-24 13:20:22] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:20:22] [INFO ] [Real]Absence check using 6 positive place invariants in 2 ms returned sat
[2026-05-24 13:20:22] [INFO ] [Real]Absence check using 6 positive and 4 generalized place invariants in 1 ms returned sat
[2026-05-24 13:20:22] [INFO ] [Real]Absence check using state equation in 16 ms returned sat
[2026-05-24 13:20:22] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:20:22] [INFO ] [Nat]Absence check using 6 positive place invariants in 2 ms returned sat
[2026-05-24 13:20:22] [INFO ] [Nat]Absence check using 6 positive and 4 generalized place invariants in 1 ms returned sat
[2026-05-24 13:20:22] [INFO ] [Nat]Absence check using state equation in 15 ms returned sat
[2026-05-24 13:20:22] [INFO ] State equation strengthened by 11 read => feed constraints.
[2026-05-24 13:20:22] [INFO ] [Nat]Added 11 Read/Feed constraints in 4 ms returned sat
[2026-05-24 13:20:22] [INFO ] Computed and/alt/rep : 54/292/54 causal constraints (skipped 4 transitions) in 3 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:23] [INFO ] Deduced a trap composed of 5 places in 47 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:23] [INFO ] Deduced a trap composed of 8 places in 45 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:23] [INFO ] Deduced a trap composed of 19 places in 43 ms of which 6 ms to minimize.
[2026-05-24 13:20:23] [INFO ] Trap strengthening (SAT) tested/added 4/3 trap constraints in 168 ms
[2026-05-24 13:20:23] [INFO ] Added : 49 causal constraints over 11 iterations in 271 ms. Result :sat
Minimization took 48 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0] Max Struct:[+inf]
Support contains 1 out of 60 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 60/60 places, 59/59 transitions.
Applied a total of 0 rules in 2 ms. Remains 60 /60 variables (removed 0) and now considering 59/59 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 2 ms. Remains : 60/60 places, 59/59 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 60/60 places, 59/59 transitions.
Applied a total of 0 rules in 2 ms. Remains 60 /60 variables (removed 0) and now considering 59/59 (removed 0) transitions.
[2026-05-24 13:20:23] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 13:20:23] [INFO ] Implicit Places using invariants in 51 ms returned []
[2026-05-24 13:20:23] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 13:20:23] [INFO ] State equation strengthened by 11 read => feed constraints.
[2026-05-24 13:20:23] [INFO ] Implicit Places using invariants and state equation in 86 ms returned []
Implicit Place search using SMT with State Equation took 138 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-24 13:20:23] [INFO ] Redundant transitions in 1 ms returned []
Running 58 sub problems to find dead transitions.
[2026-05-24 13:20:23] [INFO ] Invariant cache hit.
[2026-05-24 13:20:23] [INFO ] State equation strengthened by 11 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/59 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 58 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/59 variables, 4/6 constraints. Problems are: Problem set: 0 solved, 58 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/59 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 58 unsolved
At refinement iteration 3 (OVERLAPS) 1/60 variables, 4/10 constraints. Problems are: Problem set: 0 solved, 58 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/60 variables, 0/10 constraints. Problems are: Problem set: 0 solved, 58 unsolved
At refinement iteration 5 (OVERLAPS) 59/119 variables, 60/70 constraints. Problems are: Problem set: 0 solved, 58 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/119 variables, 11/81 constraints. Problems are: Problem set: 0 solved, 58 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:24] [INFO ] Deduced a trap composed of 8 places in 23 ms of which 2 ms to minimize.
At refinement iteration 7 (INCLUDED_ONLY) 0/119 variables, 1/82 constraints. Problems are: Problem set: 0 solved, 58 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:24] [INFO ] Deduced a trap composed of 13 places in 44 ms of which 5 ms to minimize.
At refinement iteration 8 (INCLUDED_ONLY) 0/119 variables, 1/83 constraints. Problems are: Problem set: 0 solved, 58 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:24] [INFO ] Deduced a trap along path composed of 3 places in 40 ms of which 1 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/119 variables, 1/84 constraints. Problems are: Problem set: 0 solved, 58 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:24] [INFO ] Deduced a trap composed of 15 places in 43 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:25] [INFO ] Deduced a trap composed of 18 places in 39 ms of which 4 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/119 variables, 2/86 constraints. Problems are: Problem set: 0 solved, 58 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:25] [INFO ] Deduced a trap composed of 23 places in 38 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:25] [INFO ] Deduced a trap composed of 28 places in 44 ms of which 5 ms to minimize.
At refinement iteration 11 (INCLUDED_ONLY) 0/119 variables, 2/88 constraints. Problems are: Problem set: 0 solved, 58 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/119 variables, 0/88 constraints. Problems are: Problem set: 0 solved, 58 unsolved
At refinement iteration 13 (OVERLAPS) 0/119 variables, 0/88 constraints. Problems are: Problem set: 0 solved, 58 unsolved
No progress, stopping.
After SMT solving in domain Real declared 119/119 variables, and 88 constraints, problems are : Problem set: 0 solved, 58 unsolved in 2515 ms.
Refiners :[Positive P Invariants (semi-flows): 6/6 constraints, Generalized P Invariants (flows): 4/4 constraints, State Equation: 60/60 constraints, ReadFeed: 11/11 constraints, PredecessorRefiner: 58/58 constraints, Known Traps: 6/6 constraints, Known Traps Along Path: 1/1 constraints]
Escalating to Integer solving :Problem set: 0 solved, 58 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/59 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 58 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/59 variables, 4/6 constraints. Problems are: Problem set: 0 solved, 58 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/59 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 58 unsolved
At refinement iteration 3 (OVERLAPS) 1/60 variables, 4/10 constraints. Problems are: Problem set: 0 solved, 58 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/60 variables, 6/16 constraints. Problems are: Problem set: 0 solved, 58 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/60 variables, 0/16 constraints. Problems are: Problem set: 0 solved, 58 unsolved
At refinement iteration 6 (OVERLAPS) 59/119 variables, 60/76 constraints. Problems are: Problem set: 0 solved, 58 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/119 variables, 11/87 constraints. Problems are: Problem set: 0 solved, 58 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/119 variables, 58/145 constraints. Problems are: Problem set: 0 solved, 58 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:26] [INFO ] Deduced a trap composed of 15 places in 48 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:26] [INFO ] Deduced a trap composed of 15 places in 38 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:26] [INFO ] Deduced a trap composed of 4 places in 35 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:26] [INFO ] Deduced a trap composed of 23 places in 43 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:26] [INFO ] Deduced a trap composed of 21 places in 44 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:26] [INFO ] Deduced a trap composed of 25 places in 39 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:27] [INFO ] Deduced a trap composed of 25 places in 43 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:27] [INFO ] Deduced a trap composed of 8 places in 35 ms of which 2 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/119 variables, 8/153 constraints. Problems are: Problem set: 0 solved, 58 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/119 variables, 1/154 constraints. Problems are: Problem set: 0 solved, 58 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:27] [INFO ] Deduced a trap along path composed of 13 places in 31 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:28] [INFO ] Deduced a trap along path composed of 24 places in 31 ms of which 0 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:28] [INFO ] Deduced a trap along path composed of 23 places in 31 ms of which 0 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:28] [INFO ] Deduced a trap along path composed of 25 places in 29 ms of which 0 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:28] [INFO ] Deduced a trap along path composed of 24 places in 28 ms of which 0 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:28] [INFO ] Deduced a trap along path composed of 25 places in 30 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:28] [INFO ] Deduced a trap along path composed of 28 places in 25 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:28] [INFO ] Deduced a trap along path composed of 29 places in 31 ms of which 0 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:28] [INFO ] Deduced a trap along path composed of 29 places in 27 ms of which 0 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:28] [INFO ] Deduced a trap along path composed of 28 places in 32 ms of which 0 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:28] [INFO ] Deduced a trap along path composed of 28 places in 32 ms of which 0 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:28] [INFO ] Deduced a trap along path composed of 30 places in 32 ms of which 1 ms to minimize.
At refinement iteration 11 (INCLUDED_ONLY) 0/119 variables, 12/166 constraints. Problems are: Problem set: 0 solved, 58 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/119 variables, 0/166 constraints. Problems are: Problem set: 0 solved, 58 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:31] [INFO ] Deduced a trap composed of 10 places in 42 ms of which 2 ms to minimize.
At refinement iteration 13 (OVERLAPS) 0/119 variables, 1/167 constraints. Problems are: Problem set: 0 solved, 58 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:31] [INFO ] Deduced a trap composed of 5 places in 26 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:32] [INFO ] Deduced a trap composed of 3 places in 49 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:32] [INFO ] Deduced a trap composed of 11 places in 25 ms of which 1 ms to minimize.
At refinement iteration 14 (INCLUDED_ONLY) 0/119 variables, 3/170 constraints. Problems are: Problem set: 0 solved, 58 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/119 variables, 0/170 constraints. Problems are: Problem set: 0 solved, 58 unsolved
At refinement iteration 16 (OVERLAPS) 0/119 variables, 0/170 constraints. Problems are: Problem set: 0 solved, 58 unsolved
No progress, stopping.
After SMT solving in domain Int declared 119/119 variables, and 170 constraints, problems are : Problem set: 0 solved, 58 unsolved in 10335 ms.
Refiners :[Positive P Invariants (semi-flows): 6/6 constraints, Generalized P Invariants (flows): 4/4 constraints, State Equation: 60/60 constraints, ReadFeed: 11/11 constraints, PredecessorRefiner: 58/58 constraints, Known Traps: 18/18 constraints, Known Traps Along Path: 13/13 constraints]
After SMT, in 12865ms problems are : Problem set: 0 solved, 58 unsolved
Search for dead transitions found 0 dead transitions in 12866ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 13018 ms. Remains : 60/60 places, 59/59 transitions.
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {6=1, 7=1, 14=1, 19=2, 20=1, 32=1, 34=2, 40=1, 41=1, 49=1, 53=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {6=1, 7=1, 14=1, 20=1, 32=1, 40=1, 41=1, 53=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 1529 resets, run finished after 18 ms. (steps per millisecond=555 ) properties (out of 1) seen :[0]
Current structural bounds on expressions (after cover walk) : Max Seen:[0] Max Struct:[+inf]
[2026-05-24 13:20:36] [INFO ] Flatten gal took : 15 ms
RANDOM walk for 40000 steps (6149 resets) in 89 ms. (444 steps per ms) remains 1/1 properties
[2026-05-24 13:20:36] [INFO ] Flatten gal took : 14 ms
[2026-05-24 13:20:36] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality990283506925527379.gal : 2 ms
[2026-05-24 13:20:36] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality2378744155459584614.prop : 0 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality990283506925527379.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality2378744155459584614.prop' '--nowitness' '--gen-order' 'FOLLOW'
BEST_FIRST walk for 40002 steps (3860 resets) in 33 ms. (1176 steps per ms) remains 1/1 properties

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...327
Loading property file /tmp/ReachabilityCardinality2378744155459584614.prop.
SDD proceeding with computation,1 properties remain. new max is 4
SDD size :1 after 2
SDD proceeding with computation,1 properties remain. new max is 8
SDD size :2 after 6
SDD proceeding with computation,1 properties remain. new max is 16
SDD size :6 after 9
SDD proceeding with computation,1 properties remain. new max is 32
SDD size :9 after 13
SDD proceeding with computation,1 properties remain. new max is 64
SDD size :13 after 25
SDD proceeding with computation,1 properties remain. new max is 128
SDD size :25 after 45
Finished probabilistic random walk after 1645 steps, run visited all 1 properties in 10 ms. (steps per millisecond=164 )
Probabilistic random walk after 1645 steps, saw 842 distinct states, run finished after 18 ms. (steps per millisecond=91 ) properties seen :1
ITS runner timed out or was interrupted.
SDD proceeding with computation,1 properties remain. new max is 256
SDD size :45 after 117
SDD proceeding with computation,1 properties remain. new max is 512
SDD size :117 after 288
ITS tools runner thread asked to quit. Dying gracefully.
Current structural bounds on expressions (After reachability solving 0 queries.) : Max Seen:[0] Max Struct:[+inf]
Ending property specific reduction for DoubleExponent-PT-003-UpperBounds-01 in 15610 ms.
Starting property specific reduction for DoubleExponent-PT-003-UpperBounds-05
Current structural bounds on expressions (Initially) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (Adding known information on max bounds.) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (Before main loop) : Max Seen:[0] Max Struct:[+inf]
// Phase 1: matrix 67 rows 69 cols
[2026-05-24 13:20:36] [INFO ] Computed 10 invariants in 1 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[+inf]
RANDOM walk for 10000 steps (1247 resets) in 7 ms. (1250 steps per ms)
BEST_FIRST walk for 10000 steps (828 resets) in 5 ms. (1666 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0] Max Struct:[+inf]
[2026-05-24 13:20:36] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:20:36] [INFO ] [Real]Absence check using 6 positive place invariants in 2 ms returned sat
[2026-05-24 13:20:36] [INFO ] [Real]Absence check using 6 positive and 4 generalized place invariants in 0 ms returned sat
[2026-05-24 13:20:36] [INFO ] [Real]Absence check using state equation in 17 ms returned sat
[2026-05-24 13:20:36] [INFO ] State equation strengthened by 6 read => feed constraints.
[2026-05-24 13:20:36] [INFO ] [Real]Added 6 Read/Feed constraints in 3 ms returned sat
[2026-05-24 13:20:36] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:20:36] [INFO ] [Nat]Absence check using 6 positive place invariants in 2 ms returned sat
[2026-05-24 13:20:36] [INFO ] [Nat]Absence check using 6 positive and 4 generalized place invariants in 0 ms returned sat
[2026-05-24 13:20:36] [INFO ] [Nat]Absence check using state equation in 16 ms returned sat
[2026-05-24 13:20:36] [INFO ] [Nat]Added 6 Read/Feed constraints in 4 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:36] [INFO ] Deduced a trap composed of 16 places in 47 ms of which 6 ms to minimize.
[2026-05-24 13:20:36] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 53 ms
[2026-05-24 13:20:36] [INFO ] Computed and/alt/rep : 65/281/65 causal constraints (skipped 1 transitions) in 4 ms.
[2026-05-24 13:20:36] [INFO ] Added : 57 causal constraints over 12 iterations in 112 ms. Result :sat
Minimization took 39 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0] Max Struct:[+inf]
Support contains 1 out of 69 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 69/69 places, 67/67 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 2 transitions
Trivial Post-agglo rules discarded 2 transitions
Performed 2 trivial Post agglomeration. Transition count delta: 2
Iterating post reduction 0 with 2 rules applied. Total rules applied 2 place count 69 transition count 65
Reduce places removed 2 places and 0 transitions.
Iterating post reduction 1 with 2 rules applied. Total rules applied 4 place count 67 transition count 65
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 1 Pre rules applied. Total rules applied 4 place count 67 transition count 64
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 2 with 2 rules applied. Total rules applied 6 place count 66 transition count 64
Performed 6 Post agglomeration using F-continuation condition.Transition count delta: 6
Deduced a syphon composed of 6 places in 0 ms
Reduce places removed 6 places and 0 transitions.
Iterating global reduction 2 with 12 rules applied. Total rules applied 18 place count 60 transition count 58
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 0
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 2 with 2 rules applied. Total rules applied 20 place count 59 transition count 58
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 2 with 1 rules applied. Total rules applied 21 place count 59 transition count 57
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 2 with 1 rules applied. Total rules applied 22 place count 58 transition count 57
Partial Free-agglomeration rule applied 1 times.
Drop transitions (Partial Free agglomeration) removed 1 transitions
Iterating global reduction 3 with 1 rules applied. Total rules applied 23 place count 58 transition count 57
Applied a total of 23 rules in 12 ms. Remains 58 /69 variables (removed 11) and now considering 57/67 (removed 10) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 12 ms. Remains : 58/69 places, 57/67 transitions.
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {1=4, 3=2, 5=2, 6=1, 8=1, 11=1, 12=1, 13=1, 14=1, 16=3, 20=1, 21=1, 23=1, 29=2, 30=3, 37=1, 38=1, 39=1, 41=4, 44=4, 46=1, 47=1, 49=1, 52=1, 53=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {4=1, 5=1, 11=1, 17=1, 28=1, 36=1, 37=1, 51=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 1577 resets, run finished after 17 ms. (steps per millisecond=588 ) properties (out of 1) seen :[0]
Current structural bounds on expressions (after cover walk) : Max Seen:[0] Max Struct:[+inf]
// Phase 1: matrix 57 rows 58 cols
[2026-05-24 13:20:37] [INFO ] Computed 10 invariants in 1 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[+inf]
RANDOM walk for 1000000 steps (156155 resets) in 578 ms. (1727 steps per ms)
BEST_FIRST walk for 1000000 steps (96226 resets) in 412 ms. (2421 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0] Max Struct:[+inf]
[2026-05-24 13:20:38] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:20:38] [INFO ] [Real]Absence check using 6 positive place invariants in 2 ms returned sat
[2026-05-24 13:20:38] [INFO ] [Real]Absence check using 6 positive and 4 generalized place invariants in 1 ms returned sat
[2026-05-24 13:20:38] [INFO ] [Real]Absence check using state equation in 15 ms returned sat
[2026-05-24 13:20:38] [INFO ] State equation strengthened by 13 read => feed constraints.
[2026-05-24 13:20:38] [INFO ] [Real]Added 13 Read/Feed constraints in 2 ms returned sat
[2026-05-24 13:20:38] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:20:38] [INFO ] [Nat]Absence check using 6 positive place invariants in 3 ms returned sat
[2026-05-24 13:20:38] [INFO ] [Nat]Absence check using 6 positive and 4 generalized place invariants in 1 ms returned sat
[2026-05-24 13:20:38] [INFO ] [Nat]Absence check using state equation in 14 ms returned sat
[2026-05-24 13:20:38] [INFO ] [Nat]Added 13 Read/Feed constraints in 5 ms returned sat
[2026-05-24 13:20:38] [INFO ] Computed and/alt/rep : 52/290/52 causal constraints (skipped 4 transitions) in 2 ms.
[2026-05-24 13:20:38] [INFO ] Added : 40 causal constraints over 9 iterations in 75 ms. Result :sat
Minimization took 32 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0] Max Struct:[+inf]
Support contains 1 out of 58 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 58/58 places, 57/57 transitions.
Applied a total of 0 rules in 2 ms. Remains 58 /58 variables (removed 0) and now considering 57/57 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 2 ms. Remains : 58/58 places, 57/57 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 58/58 places, 57/57 transitions.
Applied a total of 0 rules in 2 ms. Remains 58 /58 variables (removed 0) and now considering 57/57 (removed 0) transitions.
[2026-05-24 13:20:38] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 13:20:38] [INFO ] Implicit Places using invariants in 47 ms returned []
[2026-05-24 13:20:38] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 13:20:38] [INFO ] State equation strengthened by 13 read => feed constraints.
[2026-05-24 13:20:38] [INFO ] Implicit Places using invariants and state equation in 102 ms returned []
Implicit Place search using SMT with State Equation took 151 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-24 13:20:38] [INFO ] Redundant transitions in 0 ms returned []
Running 56 sub problems to find dead transitions.
[2026-05-24 13:20:38] [INFO ] Invariant cache hit.
[2026-05-24 13:20:38] [INFO ] State equation strengthened by 13 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/57 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 56 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/57 variables, 4/6 constraints. Problems are: Problem set: 0 solved, 56 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/57 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 56 unsolved
At refinement iteration 3 (OVERLAPS) 1/58 variables, 4/10 constraints. Problems are: Problem set: 0 solved, 56 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/58 variables, 0/10 constraints. Problems are: Problem set: 0 solved, 56 unsolved
At refinement iteration 5 (OVERLAPS) 57/115 variables, 58/68 constraints. Problems are: Problem set: 0 solved, 56 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/115 variables, 13/81 constraints. Problems are: Problem set: 0 solved, 56 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/115 variables, 0/81 constraints. Problems are: Problem set: 0 solved, 56 unsolved
At refinement iteration 8 (OVERLAPS) 0/115 variables, 0/81 constraints. Problems are: Problem set: 0 solved, 56 unsolved
No progress, stopping.
After SMT solving in domain Real declared 115/115 variables, and 81 constraints, problems are : Problem set: 0 solved, 56 unsolved in 852 ms.
Refiners :[Positive P Invariants (semi-flows): 6/6 constraints, Generalized P Invariants (flows): 4/4 constraints, State Equation: 58/58 constraints, ReadFeed: 13/13 constraints, PredecessorRefiner: 56/56 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 56 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/57 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 56 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/57 variables, 4/6 constraints. Problems are: Problem set: 0 solved, 56 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/57 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 56 unsolved
At refinement iteration 3 (OVERLAPS) 1/58 variables, 4/10 constraints. Problems are: Problem set: 0 solved, 56 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/58 variables, 0/10 constraints. Problems are: Problem set: 0 solved, 56 unsolved
At refinement iteration 5 (OVERLAPS) 57/115 variables, 58/68 constraints. Problems are: Problem set: 0 solved, 56 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/115 variables, 13/81 constraints. Problems are: Problem set: 0 solved, 56 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/115 variables, 56/137 constraints. Problems are: Problem set: 0 solved, 56 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/115 variables, 0/137 constraints. Problems are: Problem set: 0 solved, 56 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:40] [INFO ] Deduced a trap composed of 7 places in 38 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:40] [INFO ] Deduced a trap composed of 10 places in 27 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:40] [INFO ] Deduced a trap composed of 8 places in 34 ms of which 3 ms to minimize.
At refinement iteration 9 (OVERLAPS) 0/115 variables, 3/140 constraints. Problems are: Problem set: 0 solved, 56 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/115 variables, 0/140 constraints. Problems are: Problem set: 0 solved, 56 unsolved
At refinement iteration 11 (OVERLAPS) 0/115 variables, 0/140 constraints. Problems are: Problem set: 0 solved, 56 unsolved
No progress, stopping.
After SMT solving in domain Int declared 115/115 variables, and 140 constraints, problems are : Problem set: 0 solved, 56 unsolved in 3173 ms.
Refiners :[Positive P Invariants (semi-flows): 6/6 constraints, Generalized P Invariants (flows): 4/4 constraints, State Equation: 58/58 constraints, ReadFeed: 13/13 constraints, PredecessorRefiner: 56/56 constraints, Known Traps: 3/3 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 4038ms problems are : Problem set: 0 solved, 56 unsolved
Search for dead transitions found 0 dead transitions in 4039ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 4199 ms. Remains : 58/58 places, 57/57 transitions.
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {1=4, 3=2, 5=2, 6=1, 8=1, 11=1, 12=1, 13=1, 14=1, 16=3, 20=1, 21=1, 23=1, 29=2, 30=3, 37=1, 38=1, 39=1, 41=4, 44=4, 46=1, 47=1, 49=1, 52=1, 53=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {4=1, 5=1, 11=1, 17=1, 28=1, 36=1, 37=1, 51=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 1559 resets, run finished after 16 ms. (steps per millisecond=625 ) properties (out of 1) seen :[0]
Current structural bounds on expressions (after cover walk) : Max Seen:[0] Max Struct:[+inf]
[2026-05-24 13:20:42] [INFO ] Flatten gal took : 13 ms
[2026-05-24 13:20:42] [INFO ] Flatten gal took : 14 ms
[2026-05-24 13:20:42] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality17464319822240171234.gal : 2 ms
[2026-05-24 13:20:42] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality4074720699624655710.prop : 0 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality17464319822240171234.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality4074720699624655710.prop' '--nowitness' '--gen-order' 'FOLLOW'
RANDOM walk for 40000 steps (6276 resets) in 140 ms. (283 steps per ms) remains 1/1 properties

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...329
Loading property file /tmp/ReachabilityCardinality4074720699624655710.prop.
SDD proceeding with computation,1 properties remain. new max is 4
SDD size :1 after 2
SDD proceeding with computation,1 properties remain. new max is 8
SDD size :2 after 6
SDD proceeding with computation,1 properties remain. new max is 16
SDD size :6 after 9
SDD proceeding with computation,1 properties remain. new max is 32
SDD size :9 after 13
SDD proceeding with computation,1 properties remain. new max is 64
SDD size :13 after 25
SDD proceeding with computation,1 properties remain. new max is 128
SDD size :25 after 45
SDD proceeding with computation,1 properties remain. new max is 256
SDD size :45 after 117
SDD proceeding with computation,1 properties remain. new max is 512
SDD size :117 after 289
SDD proceeding with computation,1 properties remain. new max is 1024
SDD size :289 after 838
BEST_FIRST walk for 40001 steps (3855 resets) in 84 ms. (470 steps per ms) remains 1/1 properties
Finished probabilistic random walk after 1640 steps, run visited all 1 properties in 7 ms. (steps per millisecond=234 )
Probabilistic random walk after 1640 steps, saw 839 distinct states, run finished after 7 ms. (steps per millisecond=234 ) properties seen :1
ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
Current structural bounds on expressions (After reachability solving 0 queries.) : Max Seen:[0] Max Struct:[+inf]
Ending property specific reduction for DoubleExponent-PT-003-UpperBounds-05 in 6027 ms.
[2026-05-24 13:20:42] [INFO ] Flatten gal took : 9 ms
[2026-05-24 13:20:42] [INFO ] Applying decomposition
[2026-05-24 13:20:42] [INFO ] Flatten gal took : 6 ms
Converted graph to binary with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/convert-linux64' '-i' '/tmp/graph4306400663954934824.txt' '-o' '/tmp/graph4306400663954934824.bin' '-w' '/tmp/graph4306400663954934824.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/louvain-linux64' '/tmp/graph4306400663954934824.bin' '-l' '-1' '-v' '-w' '/tmp/graph4306400663954934824.weights' '-q' '0' '-e' '0.001'
[2026-05-24 13:20:42] [INFO ] Decomposing Gal with order
[2026-05-24 13:20:42] [INFO ] Rewriting arrays to variables to allow decomposition.
[2026-05-24 13:20:42] [INFO ] Removed a total of 31 redundant transitions.
[2026-05-24 13:20:42] [INFO ] Flatten gal took : 38 ms
[2026-05-24 13:20:42] [INFO ] Fuse similar labels procedure discarded/fused a total of 6 labels/synchronizations in 5 ms.
[2026-05-24 13:20:42] [INFO ] Time to serialize gal into /tmp/UpperBounds6914290845177287104.gal : 3 ms
[2026-05-24 13:20:42] [INFO ] Time to serialize properties into /tmp/UpperBounds15616745609232420050.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/UpperBounds6914290845177287104.gal' '-t' 'CGAL' '-reachable-file' '/tmp/UpperBounds15616745609232420050.prop' '--nowitness'

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 ...284
Loading property file /tmp/UpperBounds15616745609232420050.prop.
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
petri\_inst\_inst\_mod\_flat,815216,3.21498,85016,2953,561,127727,7024,334,131838,89,30054,0
Total reachable state count : 815216

Verifying 2 reachability properties.
Min sum of variable value : 0
Maximum sum along a path : 16
Bounds property DoubleExponent-PT-003-UpperBounds-01 :0 <= i1.u5.p113 <= 16
FORMULA DoubleExponent-PT-003-UpperBounds-01 16 TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
DoubleExponent-PT-003-UpperBounds-01,0,3.31764,85016,1,0,127727,7024,432,131838,124,30054,1014
Min sum of variable value : 0
Maximum sum along a path : 16
Bounds property DoubleExponent-PT-003-UpperBounds-05 :0 <= i0.u2.p112 <= 16
FORMULA DoubleExponent-PT-003-UpperBounds-05 16 TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
DoubleExponent-PT-003-UpperBounds-05,0,3.31925,85016,1,0,127727,7024,451,131838,124,30054,1133
Total runtime 89046 ms.

BK_STOP 1779628846217

--------------------
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="DoubleExponent-PT-003"
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 DoubleExponent-PT-003, 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 r111-tall-177955700900109"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/DoubleExponent-PT-003.tgz
mv DoubleExponent-PT-003 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 ;