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-177955700900110.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-004, examination is UpperBounds
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r111-tall-177955700900110
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 460K
-rw-r--r-- 1 mcc users 7.8K Mar 6 16:57 CTLCardinality.txt
-rw-r--r-- 1 mcc users 93K Mar 6 16:57 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.1K Mar 6 16:57 CTLFireability.txt
-rw-r--r-- 1 mcc users 44K Mar 6 16:57 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 17 09:02 LTLCardinality.txt
-rw-r--r-- 1 mcc users 27K Mar 17 09:02 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.3K Mar 17 09:02 LTLFireability.txt
-rw-r--r-- 1 mcc users 19K Mar 17 09:02 LTLFireability.xml
-rw-r--r-- 1 mcc users 6.4K Mar 6 16:57 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 55K Mar 6 16:57 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 8.7K Mar 6 16:57 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 76K Mar 6 16:57 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K Mar 17 09:02 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K Mar 17 09:02 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 67K 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-004-UpperBounds-00
FORMULA_NAME DoubleExponent-PT-004-UpperBounds-01
FORMULA_NAME DoubleExponent-PT-004-UpperBounds-02
FORMULA_NAME DoubleExponent-PT-004-UpperBounds-03
FORMULA_NAME DoubleExponent-PT-004-UpperBounds-04
FORMULA_NAME DoubleExponent-PT-004-UpperBounds-05
FORMULA_NAME DoubleExponent-PT-004-UpperBounds-06
FORMULA_NAME DoubleExponent-PT-004-UpperBounds-07
FORMULA_NAME DoubleExponent-PT-004-UpperBounds-08
FORMULA_NAME DoubleExponent-PT-004-UpperBounds-09
FORMULA_NAME DoubleExponent-PT-004-UpperBounds-10
FORMULA_NAME DoubleExponent-PT-004-UpperBounds-11
FORMULA_NAME DoubleExponent-PT-004-UpperBounds-12
FORMULA_NAME DoubleExponent-PT-004-UpperBounds-13
FORMULA_NAME DoubleExponent-PT-004-UpperBounds-14
FORMULA_NAME DoubleExponent-PT-004-UpperBounds-15

=== Now, execution of the tool begins

BK_START 1779628793029

Invoking MCC driver with
GOLD_TOOL=
BK_EXAMINATION=UpperBounds
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=DoubleExponent-PT-004
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
UpperBounds PT
Running Version 202505121319
[2026-05-24 13:19:54] [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 13:19:54] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-24 13:19:54] [INFO ] Load time of PNML (sax parser for PT used): 61 ms
[2026-05-24 13:19:54] [INFO ] Transformed 216 places.
[2026-05-24 13:19:54] [INFO ] Transformed 198 transitions.
[2026-05-24 13:19:54] [INFO ] Parsed PT model containing 216 places and 198 transitions and 558 arcs in 148 ms.
Parsed 16 properties from file /home/mcc/execution/UpperBounds.xml in 6 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 198 rows 216 cols
[2026-05-24 13:19:54] [INFO ] Computed 24 invariants in 25 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[1, 1, 1, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
RANDOM walk for 10000 steps (330 resets) in 32 ms. (303 steps per ms)
FORMULA DoubleExponent-PT-004-UpperBounds-13 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA DoubleExponent-PT-004-UpperBounds-10 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA DoubleExponent-PT-004-UpperBounds-07 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA DoubleExponent-PT-004-UpperBounds-15 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA DoubleExponent-PT-004-UpperBounds-14 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA DoubleExponent-PT-004-UpperBounds-00 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 100002 steps (2853 resets) in 204 ms. (487 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0, 0, 1, 0, 0, 0, 0, 0, 0, 0] Max Struct:[1, 1, 4, 1, 1, 1, 1, 1, 1, 1]
[2026-05-24 13:19:54] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:19:55] [INFO ] [Real]Absence check using 3 positive place invariants in 9 ms returned sat
[2026-05-24 13:19:55] [INFO ] [Real]Absence check using 3 positive and 21 generalized place invariants in 13 ms returned sat
[2026-05-24 13:19:55] [INFO ] [Real]Absence check using state equation in 100 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:55] [INFO ] Deduced a trap composed of 41 places in 89 ms of which 11 ms to minimize.
[2026-05-24 13:19:55] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:19:55] [INFO ] [Nat]Absence check using 3 positive place invariants in 30 ms returned sat
[2026-05-24 13:19:55] [INFO ] [Nat]Absence check using 3 positive and 21 generalized place invariants in 61 ms returned sat
[2026-05-24 13:19:55] [INFO ] [Nat]Absence check using state equation in 105 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:55] [INFO ] Deduced a trap composed of 41 places in 75 ms of which 9 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:55] [INFO ] Deduced a trap composed of 43 places in 64 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:55] [INFO ] Deduced a trap composed of 54 places in 59 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:55] [INFO ] Deduced a trap composed of 49 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 13:19:56] [INFO ] Deduced a trap composed of 55 places in 56 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:56] [INFO ] Deduced a trap composed of 57 places in 47 ms of which 4 ms to minimize.
[2026-05-24 13:19:56] [INFO ] Trap strengthening (SAT) tested/added 7/6 trap constraints in 446 ms
[2026-05-24 13:19:56] [INFO ] Computed and/alt/rep : 197/381/197 causal constraints (skipped 0 transitions) in 14 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:57] [INFO ] Deduced a trap composed of 60 places in 56 ms of which 5 ms to minimize.
[2026-05-24 13:19:57] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 99 ms
[2026-05-24 13:19:57] [INFO ] Added : 174 causal constraints over 36 iterations in 1075 ms. Result :sat
Minimization took 215 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:19:57] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2026-05-24 13:19:57] [INFO ] [Real]Absence check using 3 positive and 21 generalized place invariants in 6 ms returned sat
[2026-05-24 13:19:57] [INFO ] [Real]Absence check using state equation in 85 ms returned sat
[2026-05-24 13:19:57] [INFO ] Computed and/alt/rep : 197/381/197 causal constraints (skipped 0 transitions) in 25 ms.
[2026-05-24 13:19:57] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:19:57] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2026-05-24 13:19:57] [INFO ] [Nat]Absence check using 3 positive and 21 generalized place invariants in 6 ms returned sat
[2026-05-24 13:19:57] [INFO ] [Nat]Absence check using state equation in 67 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:57] [INFO ] Deduced a trap composed of 41 places in 49 ms of which 2 ms to minimize.
[2026-05-24 13:19:57] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 80 ms
[2026-05-24 13:19:57] [INFO ] Computed and/alt/rep : 197/381/197 causal constraints (skipped 0 transitions) in 11 ms.
[2026-05-24 13:19:58] [INFO ] Added : 191 causal constraints over 39 iterations in 1002 ms. Result :sat
Minimization took 219 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:19:59] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-24 13:19:59] [INFO ] [Real]Absence check using 3 positive and 21 generalized place invariants in 2 ms returned unsat
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:19:59] [INFO ] [Real]Absence check using 3 positive place invariants in 17 ms returned sat
[2026-05-24 13:19:59] [INFO ] [Real]Absence check using 3 positive and 21 generalized place invariants in 16 ms returned sat
[2026-05-24 13:19:59] [INFO ] [Real]Absence check using state equation in 67 ms returned sat
[2026-05-24 13:19:59] [INFO ] Computed and/alt/rep : 197/381/197 causal constraints (skipped 0 transitions) in 11 ms.
[2026-05-24 13:19:59] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:19:59] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2026-05-24 13:19:59] [INFO ] [Nat]Absence check using 3 positive and 21 generalized place invariants in 5 ms returned sat
[2026-05-24 13:19:59] [INFO ] [Nat]Absence check using state equation in 65 ms returned sat
[2026-05-24 13:19:59] [INFO ] Computed and/alt/rep : 197/381/197 causal constraints (skipped 0 transitions) in 12 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 24 places in 78 ms of which 10 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:00] [INFO ] Deduced a trap composed of 25 places in 62 ms of which 5 ms to minimize.
[2026-05-24 13:20:00] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 195 ms
[2026-05-24 13:20:00] [INFO ] Added : 195 causal constraints over 40 iterations in 1124 ms. Result :sat
Minimization took 193 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:20:00] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2026-05-24 13:20:00] [INFO ] [Real]Absence check using 3 positive and 21 generalized place invariants in 5 ms returned sat
[2026-05-24 13:20:00] [INFO ] [Real]Absence check using state equation in 67 ms returned sat
[2026-05-24 13:20:00] [INFO ] Computed and/alt/rep : 197/381/197 causal constraints (skipped 0 transitions) in 13 ms.
[2026-05-24 13:20:01] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:20:01] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2026-05-24 13:20:01] [INFO ] [Nat]Absence check using 3 positive and 21 generalized place invariants in 6 ms returned sat
[2026-05-24 13:20:01] [INFO ] [Nat]Absence check using state equation in 68 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 49 places in 51 ms of which 5 ms to minimize.
[2026-05-24 13:20:01] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 81 ms
[2026-05-24 13:20:01] [INFO ] Computed and/alt/rep : 197/381/197 causal constraints (skipped 0 transitions) in 11 ms.
[2026-05-24 13:20:01] [INFO ] Added : 158 causal constraints over 32 iterations in 649 ms. Result :sat
Minimization took 211 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:20:02] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2026-05-24 13:20:02] [INFO ] [Real]Absence check using 3 positive and 21 generalized place invariants in 6 ms returned sat
[2026-05-24 13:20:02] [INFO ] [Real]Absence check using state equation in 81 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 54 places in 79 ms of which 19 ms to minimize.
[2026-05-24 13:20:02] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:20:02] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2026-05-24 13:20:02] [INFO ] [Nat]Absence check using 3 positive and 21 generalized place invariants in 6 ms returned sat
[2026-05-24 13:20:02] [INFO ] [Nat]Absence check using state equation in 79 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 54 places in 87 ms of which 19 ms to minimize.
[2026-05-24 13:20:02] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 110 ms
[2026-05-24 13:20:02] [INFO ] Computed and/alt/rep : 197/381/197 causal constraints (skipped 0 transitions) in 9 ms.
[2026-05-24 13:20:03] [INFO ] Added : 166 causal constraints over 34 iterations in 704 ms. Result :sat
Minimization took 170 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:20:03] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2026-05-24 13:20:03] [INFO ] [Real]Absence check using 3 positive and 21 generalized place invariants in 8 ms returned sat
[2026-05-24 13:20:03] [INFO ] [Real]Absence check using state equation in 94 ms returned sat
[2026-05-24 13:20:03] [INFO ] Computed and/alt/rep : 197/381/197 causal constraints (skipped 0 transitions) in 11 ms.
[2026-05-24 13:20:03] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:20:03] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2026-05-24 13:20:03] [INFO ] [Nat]Absence check using 3 positive and 21 generalized place invariants in 6 ms returned sat
[2026-05-24 13:20:03] [INFO ] [Nat]Absence check using state equation in 82 ms returned sat
[2026-05-24 13:20:03] [INFO ] Computed and/alt/rep : 197/381/197 causal constraints (skipped 0 transitions) in 12 ms.
[2026-05-24 13:20:04] [INFO ] Added : 161 causal constraints over 34 iterations in 873 ms. Result :sat
Minimization took 216 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:20:04] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2026-05-24 13:20:04] [INFO ] [Real]Absence check using 3 positive and 21 generalized place invariants in 5 ms returned sat
[2026-05-24 13:20:05] [INFO ] [Real]Absence check using state equation in 61 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:05] [INFO ] Deduced a trap composed of 18 places in 66 ms of which 5 ms to minimize.
[2026-05-24 13:20:05] [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 13:20:05] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2026-05-24 13:20:05] [INFO ] [Nat]Absence check using 3 positive and 21 generalized place invariants in 5 ms returned sat
[2026-05-24 13:20:05] [INFO ] [Nat]Absence check using state equation in 57 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:05] [INFO ] Deduced a trap composed of 18 places in 62 ms of which 6 ms to minimize.
[2026-05-24 13:20:05] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 93 ms
[2026-05-24 13:20:05] [INFO ] Computed and/alt/rep : 197/381/197 causal constraints (skipped 0 transitions) in 14 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:06] [INFO ] Deduced a trap composed of 24 places in 62 ms of which 9 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 25 places in 79 ms of which 8 ms to minimize.
[2026-05-24 13:20:06] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 189 ms
[2026-05-24 13:20:06] [INFO ] Added : 158 causal constraints over 32 iterations in 809 ms. Result :sat
Minimization took 236 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:20:06] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2026-05-24 13:20:06] [INFO ] [Real]Absence check using 3 positive and 21 generalized place invariants in 13 ms returned sat
[2026-05-24 13:20:06] [INFO ] [Real]Absence check using state equation in 74 ms returned sat
[2026-05-24 13:20:06] [INFO ] Computed and/alt/rep : 197/381/197 causal constraints (skipped 0 transitions) in 11 ms.
[2026-05-24 13:20:06] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:20:06] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2026-05-24 13:20:06] [INFO ] [Nat]Absence check using 3 positive and 21 generalized place invariants in 6 ms returned sat
[2026-05-24 13:20:06] [INFO ] [Nat]Absence check using state equation in 71 ms returned sat
[2026-05-24 13:20:06] [INFO ] Computed and/alt/rep : 197/381/197 causal constraints (skipped 0 transitions) in 10 ms.
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 24 places in 68 ms of which 10 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 25 places in 74 ms of which 16 ms to minimize.
[2026-05-24 13:20:07] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 196 ms
[2026-05-24 13:20:07] [INFO ] Added : 189 causal constraints over 39 iterations in 1075 ms. Result :sat
Minimization took 221 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:20:08] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2026-05-24 13:20:08] [INFO ] [Real]Absence check using 3 positive and 21 generalized place invariants in 5 ms returned sat
[2026-05-24 13:20:08] [INFO ] [Real]Absence check using state equation in 85 ms returned sat
[2026-05-24 13:20:08] [INFO ] Computed and/alt/rep : 197/381/197 causal constraints (skipped 0 transitions) in 9 ms.
[2026-05-24 13:20:08] [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 13:20:08] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2026-05-24 13:20:08] [INFO ] [Nat]Absence check using 3 positive and 21 generalized place invariants in 5 ms returned sat
[2026-05-24 13:20:08] [INFO ] [Nat]Absence check using state equation in 69 ms returned sat
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 18 places in 68 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:08] [INFO ] Deduced a trap composed of 54 places in 47 ms of which 5 ms to minimize.
[2026-05-24 13:20:08] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 147 ms
[2026-05-24 13:20:08] [INFO ] Computed and/alt/rep : 197/381/197 causal constraints (skipped 0 transitions) in 11 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:09] [INFO ] Deduced a trap composed of 55 places in 48 ms of which 3 ms to minimize.
[2026-05-24 13:20:09] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 88 ms
[2026-05-24 13:20:09] [INFO ] Added : 192 causal constraints over 40 iterations in 979 ms. Result :sat
Minimization took 205 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0, 0, 1, 0, 0, 0, 0, 0, 0, 0] Max Struct:[1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
FORMULA DoubleExponent-PT-004-UpperBounds-03 1 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[1, 1, 1, 1, 1, 1, 1, 1, 1]
Support contains 9 out of 216 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 216/216 places, 198/198 transitions.
Graph (complete) has 360 edges and 216 vertex of which 210 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 41 transitions
Trivial Post-agglo rules discarded 41 transitions
Performed 41 trivial Post agglomeration. Transition count delta: 41
Iterating post reduction 0 with 44 rules applied. Total rules applied 45 place count 209 transition count 155
Reduce places removed 41 places and 0 transitions.
Performed 2 Post agglomeration using F-continuation condition.Transition count delta: 2
Iterating post reduction 1 with 43 rules applied. Total rules applied 88 place count 168 transition count 153
Reduce places removed 2 places and 0 transitions.
Iterating post reduction 2 with 2 rules applied. Total rules applied 90 place count 166 transition count 153
Performed 8 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 8 Pre rules applied. Total rules applied 90 place count 166 transition count 145
Deduced a syphon composed of 8 places in 1 ms
Reduce places removed 8 places and 0 transitions.
Iterating global reduction 3 with 16 rules applied. Total rules applied 106 place count 158 transition count 145
Performed 38 Post agglomeration using F-continuation condition.Transition count delta: 38
Deduced a syphon composed of 38 places in 1 ms
Reduce places removed 38 places and 0 transitions.
Iterating global reduction 3 with 76 rules applied. Total rules applied 182 place count 120 transition count 107
Performed 6 Post agglomeration using F-continuation condition.Transition count delta: 0
Deduced a syphon composed of 6 places in 0 ms
Reduce places removed 6 places and 0 transitions.
Iterating global reduction 3 with 12 rules applied. Total rules applied 194 place count 114 transition count 107
Free-agglomeration rule (complex) applied 15 times.
Iterating global reduction 3 with 15 rules applied. Total rules applied 209 place count 114 transition count 92
Reduce places removed 15 places and 0 transitions.
Iterating post reduction 3 with 15 rules applied. Total rules applied 224 place count 99 transition count 92
Partial Free-agglomeration rule applied 12 times.
Drop transitions (Partial Free agglomeration) removed 12 transitions
Iterating global reduction 4 with 12 rules applied. Total rules applied 236 place count 99 transition count 92
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 4 with 1 rules applied. Total rules applied 237 place count 98 transition count 91
Applied a total of 237 rules in 66 ms. Remains 98 /216 variables (removed 118) and now considering 91/198 (removed 107) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 73 ms. Remains : 98/216 places, 91/198 transitions.
// Phase 1: matrix 91 rows 98 cols
[2026-05-24 13:20:10] [INFO ] Computed 20 invariants in 8 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[1, 1, 1, 1, 1, 1, 1, 1, 1]
RANDOM walk for 1000000 steps (127817 resets) in 881 ms. (1133 steps per ms)
BEST_FIRST walk for 9000001 steps (763057 resets) in 4597 ms. (1957 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[1, 1, 1, 1, 1, 1, 1, 1, 1]
[2026-05-24 13:20:16] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:20:16] [INFO ] [Real]Absence check using 3 positive place invariants in 1 ms returned sat
[2026-05-24 13:20:16] [INFO ] [Real]Absence check using 3 positive and 17 generalized place invariants in 12 ms returned sat
[2026-05-24 13:20:16] [INFO ] [Real]Absence check using state equation in 39 ms returned sat
[2026-05-24 13:20:16] [INFO ] State equation strengthened by 12 read => feed constraints.
[2026-05-24 13:20:16] [INFO ] [Real]Added 12 Read/Feed constraints in 10 ms returned sat
[2026-05-24 13:20:16] [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 13:20:16] [INFO ] [Nat]Absence check using 3 positive place invariants in 1 ms returned sat
[2026-05-24 13:20:16] [INFO ] [Nat]Absence check using 3 positive and 17 generalized place invariants in 3 ms returned sat
[2026-05-24 13:20:16] [INFO ] [Nat]Absence check using state equation in 24 ms returned sat
[2026-05-24 13:20:16] [INFO ] [Nat]Added 12 Read/Feed constraints in 18 ms returned sat
[2026-05-24 13:20:16] [INFO ] Computed and/alt/rep : 82/397/82 causal constraints (skipped 8 transitions) in 7 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:16] [INFO ] Deduced a trap composed of 4 places in 67 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:16] [INFO ] Deduced a trap composed of 4 places in 54 ms of which 3 ms to minimize.
[2026-05-24 13:20:16] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 159 ms
[2026-05-24 13:20:16] [INFO ] Added : 79 causal constraints over 18 iterations in 513 ms. Result :sat
Minimization took 117 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:20:17] [INFO ] [Real]Absence check using 3 positive place invariants in 1 ms returned sat
[2026-05-24 13:20:17] [INFO ] [Real]Absence check using 3 positive and 17 generalized place invariants in 3 ms returned sat
[2026-05-24 13:20:17] [INFO ] [Real]Absence check using state equation in 24 ms returned sat
[2026-05-24 13:20:17] [INFO ] [Real]Added 12 Read/Feed constraints in 5 ms returned sat
[2026-05-24 13:20:17] [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 13:20:17] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2026-05-24 13:20:17] [INFO ] [Nat]Absence check using 3 positive and 17 generalized place invariants in 3 ms returned sat
[2026-05-24 13:20:17] [INFO ] [Nat]Absence check using state equation in 24 ms returned sat
[2026-05-24 13:20:17] [INFO ] [Nat]Added 12 Read/Feed constraints in 14 ms returned sat
[2026-05-24 13:20:17] [INFO ] Computed and/alt/rep : 82/397/82 causal constraints (skipped 8 transitions) in 9 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:17] [INFO ] Deduced a trap composed of 8 places in 52 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:17] [INFO ] Deduced a trap composed of 8 places in 73 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:17] [INFO ] Deduced a trap composed of 13 places in 64 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:17] [INFO ] Deduced a trap composed of 24 places in 72 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:17] [INFO ] Deduced a trap composed of 26 places in 67 ms of which 7 ms to minimize.
[2026-05-24 13:20:17] [INFO ] Trap strengthening (SAT) tested/added 6/5 trap constraints in 409 ms
[2026-05-24 13:20:17] [INFO ] Added : 78 causal constraints over 17 iterations in 667 ms. Result :sat
Minimization took 96 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:20:17] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2026-05-24 13:20:18] [INFO ] [Real]Absence check using 3 positive and 17 generalized place invariants in 7 ms returned sat
[2026-05-24 13:20:18] [INFO ] [Real]Absence check using state equation in 56 ms returned sat
[2026-05-24 13:20:18] [INFO ] [Real]Added 12 Read/Feed constraints in 9 ms returned sat
[2026-05-24 13:20:18] [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 13:20:18] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2026-05-24 13:20:18] [INFO ] [Nat]Absence check using 3 positive and 17 generalized place invariants in 4 ms returned sat
[2026-05-24 13:20:18] [INFO ] [Nat]Absence check using state equation in 25 ms returned sat
[2026-05-24 13:20:18] [INFO ] [Nat]Added 12 Read/Feed constraints in 11 ms returned sat
[2026-05-24 13:20:18] [INFO ] Computed and/alt/rep : 82/397/82 causal constraints (skipped 8 transitions) in 7 ms.
[2026-05-24 13:20:18] [INFO ] Added : 80 causal constraints over 16 iterations in 198 ms. Result :sat
Minimization took 101 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:20:18] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2026-05-24 13:20:18] [INFO ] [Real]Absence check using 3 positive and 17 generalized place invariants in 3 ms returned sat
[2026-05-24 13:20:18] [INFO ] [Real]Absence check using state equation in 31 ms returned sat
[2026-05-24 13:20:18] [INFO ] [Real]Added 12 Read/Feed constraints in 15 ms returned sat
[2026-05-24 13:20:18] [INFO ] Computed and/alt/rep : 82/397/82 causal constraints (skipped 8 transitions) in 5 ms.
[2026-05-24 13:20:18] [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 13:20:18] [INFO ] [Nat]Absence check using 3 positive place invariants in 1 ms returned sat
[2026-05-24 13:20:18] [INFO ] [Nat]Absence check using 3 positive and 17 generalized place invariants in 3 ms returned sat
[2026-05-24 13:20:18] [INFO ] [Nat]Absence check using state equation in 25 ms returned sat
[2026-05-24 13:20:18] [INFO ] [Nat]Added 12 Read/Feed constraints in 13 ms returned sat
[2026-05-24 13:20:18] [INFO ] Computed and/alt/rep : 82/397/82 causal constraints (skipped 8 transitions) in 7 ms.
[2026-05-24 13:20:18] [INFO ] Added : 68 causal constraints over 15 iterations in 246 ms. Result :sat
Minimization took 100 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:20:19] [INFO ] [Real]Absence check using 3 positive place invariants in 1 ms returned sat
[2026-05-24 13:20:19] [INFO ] [Real]Absence check using 3 positive and 17 generalized place invariants in 3 ms returned sat
[2026-05-24 13:20:19] [INFO ] [Real]Absence check using state equation in 27 ms returned sat
[2026-05-24 13:20:19] [INFO ] [Real]Added 12 Read/Feed constraints in 7 ms returned sat
[2026-05-24 13:20:19] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:20:19] [INFO ] [Nat]Absence check using 3 positive place invariants in 1 ms returned sat
[2026-05-24 13:20:19] [INFO ] [Nat]Absence check using 3 positive and 17 generalized place invariants in 4 ms returned sat
[2026-05-24 13:20:19] [INFO ] [Nat]Absence check using state equation in 26 ms returned sat
[2026-05-24 13:20:19] [INFO ] [Nat]Added 12 Read/Feed constraints in 11 ms returned sat
[2026-05-24 13:20:19] [INFO ] Computed and/alt/rep : 82/397/82 causal constraints (skipped 8 transitions) in 6 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:19] [INFO ] Deduced a trap composed of 8 places in 55 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:19] [INFO ] Deduced a trap composed of 9 places in 53 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:19] [INFO ] Deduced a trap composed of 15 places in 44 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:19] [INFO ] Deduced a trap composed of 11 places in 47 ms of which 3 ms to minimize.
[2026-05-24 13:20:19] [INFO ] Trap strengthening (SAT) tested/added 5/4 trap constraints in 253 ms
[2026-05-24 13:20:19] [INFO ] Added : 51 causal constraints over 11 iterations in 401 ms. Result :sat
Minimization took 77 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:20:19] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2026-05-24 13:20:19] [INFO ] [Real]Absence check using 3 positive and 17 generalized place invariants in 3 ms returned sat
[2026-05-24 13:20:19] [INFO ] [Real]Absence check using state equation in 25 ms returned sat
[2026-05-24 13:20:19] [INFO ] [Real]Added 12 Read/Feed constraints in 5 ms returned sat
[2026-05-24 13:20:19] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:20:19] [INFO ] [Nat]Absence check using 3 positive place invariants in 1 ms returned sat
[2026-05-24 13:20:19] [INFO ] [Nat]Absence check using 3 positive and 17 generalized place invariants in 7 ms returned sat
[2026-05-24 13:20:19] [INFO ] [Nat]Absence check using state equation in 25 ms returned sat
[2026-05-24 13:20:19] [INFO ] [Nat]Added 12 Read/Feed constraints in 11 ms returned sat
[2026-05-24 13:20:19] [INFO ] Computed and/alt/rep : 82/397/82 causal constraints (skipped 8 transitions) in 6 ms.
[2026-05-24 13:20:20] [INFO ] Added : 77 causal constraints over 16 iterations in 257 ms. Result :sat
Minimization took 125 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:20:20] [INFO ] [Real]Absence check using 3 positive place invariants in 1 ms returned sat
[2026-05-24 13:20:20] [INFO ] [Real]Absence check using 3 positive and 17 generalized place invariants in 3 ms returned sat
[2026-05-24 13:20:20] [INFO ] [Real]Absence check using state equation in 32 ms returned sat
[2026-05-24 13:20:20] [INFO ] [Real]Added 12 Read/Feed constraints in 8 ms returned sat
[2026-05-24 13:20:20] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:20:20] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2026-05-24 13:20:20] [INFO ] [Nat]Absence check using 3 positive and 17 generalized place invariants in 4 ms returned sat
[2026-05-24 13:20:20] [INFO ] [Nat]Absence check using state equation in 23 ms returned sat
[2026-05-24 13:20:20] [INFO ] [Nat]Added 12 Read/Feed constraints in 9 ms returned sat
[2026-05-24 13:20:20] [INFO ] Computed and/alt/rep : 82/397/82 causal constraints (skipped 8 transitions) in 5 ms.
[2026-05-24 13:20:20] [INFO ] Added : 48 causal constraints over 10 iterations in 126 ms. Result :sat
Minimization took 71 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:20:20] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2026-05-24 13:20:20] [INFO ] [Real]Absence check using 3 positive and 17 generalized place invariants in 3 ms returned sat
[2026-05-24 13:20:20] [INFO ] [Real]Absence check using state equation in 24 ms returned sat
[2026-05-24 13:20:20] [INFO ] [Real]Added 12 Read/Feed constraints in 14 ms returned sat
[2026-05-24 13:20:20] [INFO ] Computed and/alt/rep : 82/397/82 causal constraints (skipped 8 transitions) in 4 ms.
[2026-05-24 13:20:20] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:20:20] [INFO ] [Nat]Absence check using 3 positive place invariants in 1 ms returned sat
[2026-05-24 13:20:20] [INFO ] [Nat]Absence check using 3 positive and 17 generalized place invariants in 3 ms returned sat
[2026-05-24 13:20:20] [INFO ] [Nat]Absence check using state equation in 25 ms returned sat
[2026-05-24 13:20:20] [INFO ] [Nat]Added 12 Read/Feed constraints in 17 ms returned sat
[2026-05-24 13:20:20] [INFO ] Computed and/alt/rep : 82/397/82 causal constraints (skipped 8 transitions) in 9 ms.
[2026-05-24 13:20:20] [INFO ] Added : 52 causal constraints over 11 iterations in 153 ms. Result :sat
Minimization took 90 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:20:21] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2026-05-24 13:20:21] [INFO ] [Real]Absence check using 3 positive and 17 generalized place invariants in 3 ms returned sat
[2026-05-24 13:20:21] [INFO ] [Real]Absence check using state equation in 25 ms returned sat
[2026-05-24 13:20:21] [INFO ] [Real]Added 12 Read/Feed constraints in 11 ms returned sat
[2026-05-24 13:20:21] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:20:21] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2026-05-24 13:20:21] [INFO ] [Nat]Absence check using 3 positive and 17 generalized place invariants in 3 ms returned sat
[2026-05-24 13:20:21] [INFO ] [Nat]Absence check using state equation in 27 ms returned sat
[2026-05-24 13:20:21] [INFO ] [Nat]Added 12 Read/Feed constraints in 14 ms returned sat
[2026-05-24 13:20:21] [INFO ] Computed and/alt/rep : 82/397/82 causal constraints (skipped 8 transitions) in 8 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 13 places in 48 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:21] [INFO ] Deduced a trap composed of 15 places in 46 ms of which 3 ms to minimize.
[2026-05-24 13:20:21] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 135 ms
[2026-05-24 13:20:21] [INFO ] Added : 80 causal constraints over 18 iterations in 502 ms. Result :sat
Minimization took 109 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[1, 1, 1, 1, 1, 1, 1, 1, 1]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[1, 1, 1, 1, 1, 1, 1, 1, 1]
Support contains 9 out of 98 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 98/98 places, 91/91 transitions.
Applied a total of 0 rules in 4 ms. Remains 98 /98 variables (removed 0) and now considering 91/91 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 4 ms. Remains : 98/98 places, 91/91 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 98/98 places, 91/91 transitions.
Applied a total of 0 rules in 4 ms. Remains 98 /98 variables (removed 0) and now considering 91/91 (removed 0) transitions.
[2026-05-24 13:20:22] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 13:20:22] [INFO ] Implicit Places using invariants in 121 ms returned [22, 29, 45, 52, 66, 71, 89, 95]
[2026-05-24 13:20:22] [INFO ] Actually due to overlaps returned [71, 66]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 125 ms to find 2 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 1 : 96/98 places, 91/91 transitions.
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 96 transition count 90
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 95 transition count 90
Applied a total of 2 rules in 9 ms. Remains 95 /96 variables (removed 1) and now considering 90/91 (removed 1) transitions.
// Phase 1: matrix 90 rows 95 cols
[2026-05-24 13:20:22] [INFO ] Computed 18 invariants in 3 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 13:20:22] [INFO ] Implicit Places using invariants in 91 ms returned [22, 29, 45, 52, 86, 92]
[2026-05-24 13:20:22] [INFO ] Actually due to overlaps returned [92, 86]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 92 ms to find 2 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 2 : 93/98 places, 90/91 transitions.
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 93 transition count 89
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 92 transition count 89
Applied a total of 2 rules in 9 ms. Remains 92 /93 variables (removed 1) and now considering 89/90 (removed 1) transitions.
// Phase 1: matrix 89 rows 92 cols
[2026-05-24 13:20:22] [INFO ] Computed 16 invariants in 3 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 13:20:22] [INFO ] Implicit Places using invariants in 86 ms returned [22, 29, 45, 52]
[2026-05-24 13:20:22] [INFO ] Actually due to overlaps returned [22, 29]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 87 ms to find 2 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 3 : 90/98 places, 89/91 transitions.
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 90 transition count 88
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 89 transition count 88
Applied a total of 2 rules in 9 ms. Remains 89 /90 variables (removed 1) and now considering 88/89 (removed 1) transitions.
// Phase 1: matrix 88 rows 89 cols
[2026-05-24 13:20:22] [INFO ] Computed 14 invariants in 2 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 13:20:22] [INFO ] Implicit Places using invariants in 75 ms returned [42, 49]
[2026-05-24 13:20:22] [INFO ] Actually due to overlaps returned [42]
Discarding 1 places :
Implicit Place search using SMT only with invariants took 76 ms to find 1 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 4 : 88/98 places, 88/91 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 0 with 2 rules applied. Total rules applied 2 place count 87 transition count 87
Applied a total of 2 rules in 5 ms. Remains 87 /88 variables (removed 1) and now considering 87/88 (removed 1) transitions.
// Phase 1: matrix 87 rows 87 cols
[2026-05-24 13:20:22] [INFO ] Computed 13 invariants in 2 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 13:20:22] [INFO ] Implicit Places using invariants in 76 ms returned []
[2026-05-24 13:20:22] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 13:20:22] [INFO ] State equation strengthened by 12 read => feed constraints.
[2026-05-24 13:20:23] [INFO ] Implicit Places using invariants and state equation in 186 ms returned []
Implicit Place search using SMT with State Equation took 264 ms to find 0 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 5 : 87/98 places, 87/91 transitions.
Finished structural reductions in REACHABILITY mode , in 5 iterations and 684 ms. Remains : 87/98 places, 87/91 transitions.
[2026-05-24 13:20:23] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[1, 1, 1, 1, 1, 1, 1, 1, 1]
RANDOM walk for 1000000 steps (144097 resets) in 672 ms. (1485 steps per ms)
BEST_FIRST walk for 9000000 steps (822744 resets) in 4422 ms. (2034 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[1, 1, 1, 1, 1, 1, 1, 1, 1]
[2026-05-24 13:20:28] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:20:28] [INFO ] [Real]Absence check using 7 positive place invariants in 2 ms returned sat
[2026-05-24 13:20:28] [INFO ] [Real]Absence check using 7 positive and 6 generalized place invariants in 1 ms returned sat
[2026-05-24 13:20:28] [INFO ] [Real]Absence check using state equation in 25 ms returned sat
[2026-05-24 13:20:28] [INFO ] State equation strengthened by 12 read => feed constraints.
[2026-05-24 13:20:28] [INFO ] [Real]Added 12 Read/Feed constraints in 11 ms returned sat
[2026-05-24 13:20:28] [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 13:20:28] [INFO ] [Nat]Absence check using 7 positive place invariants in 2 ms returned sat
[2026-05-24 13:20:28] [INFO ] [Nat]Absence check using 7 positive and 6 generalized place invariants in 1 ms returned sat
[2026-05-24 13:20:28] [INFO ] [Nat]Absence check using state equation in 24 ms returned sat
[2026-05-24 13:20:28] [INFO ] [Nat]Added 12 Read/Feed constraints in 12 ms returned sat
[2026-05-24 13:20:28] [INFO ] Computed and/alt/rep : 84/432/84 causal constraints (skipped 2 transitions) in 6 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:28] [INFO ] Deduced a trap composed of 8 places in 57 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:28] [INFO ] Deduced a trap composed of 18 places in 52 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:28] [INFO ] Deduced a trap composed of 13 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 13:20:28] [INFO ] Deduced a trap composed of 30 places in 51 ms of which 9 ms to minimize.
[2026-05-24 13:20:28] [INFO ] Trap strengthening (SAT) tested/added 5/4 trap constraints in 296 ms
[2026-05-24 13:20:28] [INFO ] Added : 61 causal constraints over 13 iterations in 484 ms. Result :sat
Minimization took 70 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:20:28] [INFO ] [Real]Absence check using 7 positive place invariants in 3 ms returned sat
[2026-05-24 13:20:28] [INFO ] [Real]Absence check using 7 positive and 6 generalized place invariants in 1 ms returned sat
[2026-05-24 13:20:28] [INFO ] [Real]Absence check using state equation in 27 ms returned sat
[2026-05-24 13:20:28] [INFO ] [Real]Added 12 Read/Feed constraints in 6 ms returned sat
[2026-05-24 13:20:28] [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 13:20:29] [INFO ] [Nat]Absence check using 7 positive place invariants in 3 ms returned sat
[2026-05-24 13:20:29] [INFO ] [Nat]Absence check using 7 positive and 6 generalized place invariants in 1 ms returned sat
[2026-05-24 13:20:29] [INFO ] [Nat]Absence check using state equation in 26 ms returned sat
[2026-05-24 13:20:29] [INFO ] [Nat]Added 12 Read/Feed constraints in 10 ms returned sat
[2026-05-24 13:20:29] [INFO ] Computed and/alt/rep : 84/432/84 causal constraints (skipped 2 transitions) in 8 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:29] [INFO ] Deduced a trap composed of 24 places in 57 ms of which 8 ms to minimize.
[2026-05-24 13:20:29] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 80 ms
[2026-05-24 13:20:29] [INFO ] Added : 77 causal constraints over 16 iterations in 291 ms. Result :sat
Minimization took 110 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:20:29] [INFO ] [Real]Absence check using 7 positive place invariants in 3 ms returned sat
[2026-05-24 13:20:29] [INFO ] [Real]Absence check using 7 positive and 6 generalized place invariants in 1 ms returned sat
[2026-05-24 13:20:29] [INFO ] [Real]Absence check using state equation in 27 ms returned sat
[2026-05-24 13:20:29] [INFO ] [Real]Added 12 Read/Feed constraints in 7 ms returned sat
[2026-05-24 13:20:29] [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 13:20:29] [INFO ] [Nat]Absence check using 7 positive place invariants in 3 ms returned sat
[2026-05-24 13:20:29] [INFO ] [Nat]Absence check using 7 positive and 6 generalized place invariants in 1 ms returned sat
[2026-05-24 13:20:29] [INFO ] [Nat]Absence check using state equation in 29 ms returned sat
[2026-05-24 13:20:29] [INFO ] [Nat]Added 12 Read/Feed constraints in 7 ms returned sat
[2026-05-24 13:20:29] [INFO ] Computed and/alt/rep : 84/432/84 causal constraints (skipped 2 transitions) in 6 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:29] [INFO ] Deduced a trap composed of 10 places in 32 ms of which 2 ms to minimize.
[2026-05-24 13:20:29] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 58 ms
[2026-05-24 13:20:29] [INFO ] Added : 83 causal constraints over 17 iterations in 327 ms. Result :sat
Minimization took 94 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:20:30] [INFO ] [Real]Absence check using 7 positive place invariants in 2 ms returned sat
[2026-05-24 13:20:30] [INFO ] [Real]Absence check using 7 positive and 6 generalized place invariants in 2 ms returned sat
[2026-05-24 13:20:30] [INFO ] [Real]Absence check using state equation in 24 ms returned sat
[2026-05-24 13:20:30] [INFO ] [Real]Added 12 Read/Feed constraints in 7 ms returned sat
[2026-05-24 13:20:30] [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 13:20:30] [INFO ] [Nat]Absence check using 7 positive place invariants in 3 ms returned sat
[2026-05-24 13:20:30] [INFO ] [Nat]Absence check using 7 positive and 6 generalized place invariants in 2 ms returned sat
[2026-05-24 13:20:30] [INFO ] [Nat]Absence check using state equation in 25 ms returned sat
[2026-05-24 13:20:30] [INFO ] [Nat]Added 12 Read/Feed constraints in 8 ms returned sat
[2026-05-24 13:20:30] [INFO ] Computed and/alt/rep : 84/432/84 causal constraints (skipped 2 transitions) in 8 ms.
[2026-05-24 13:20:30] [INFO ] Added : 69 causal constraints over 14 iterations in 184 ms. Result :sat
Minimization took 74 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:20:30] [INFO ] [Real]Absence check using 7 positive place invariants in 2 ms returned sat
[2026-05-24 13:20:30] [INFO ] [Real]Absence check using 7 positive and 6 generalized place invariants in 2 ms returned sat
[2026-05-24 13:20:30] [INFO ] [Real]Absence check using state equation in 25 ms returned sat
[2026-05-24 13:20:30] [INFO ] [Real]Added 12 Read/Feed constraints in 7 ms returned sat
[2026-05-24 13:20:30] [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 13:20:30] [INFO ] [Nat]Absence check using 7 positive place invariants in 2 ms returned sat
[2026-05-24 13:20:30] [INFO ] [Nat]Absence check using 7 positive and 6 generalized place invariants in 1 ms returned sat
[2026-05-24 13:20:30] [INFO ] [Nat]Absence check using state equation in 23 ms returned sat
[2026-05-24 13:20:30] [INFO ] [Nat]Added 12 Read/Feed constraints in 10 ms returned sat
[2026-05-24 13:20:30] [INFO ] Computed and/alt/rep : 84/432/84 causal constraints (skipped 2 transitions) in 5 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:30] [INFO ] Deduced a trap composed of 8 places in 50 ms of which 3 ms to minimize.
[2026-05-24 13:20:30] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 70 ms
[2026-05-24 13:20:30] [INFO ] Added : 80 causal constraints over 17 iterations in 339 ms. Result :sat
Minimization took 101 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:20:31] [INFO ] [Real]Absence check using 7 positive place invariants in 2 ms returned sat
[2026-05-24 13:20:31] [INFO ] [Real]Absence check using 7 positive and 6 generalized place invariants in 2 ms returned sat
[2026-05-24 13:20:31] [INFO ] [Real]Absence check using state equation in 25 ms returned sat
[2026-05-24 13:20:31] [INFO ] [Real]Added 12 Read/Feed constraints in 15 ms returned sat
[2026-05-24 13:20:31] [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 13:20:31] [INFO ] [Nat]Absence check using 7 positive place invariants in 3 ms returned sat
[2026-05-24 13:20:31] [INFO ] [Nat]Absence check using 7 positive and 6 generalized place invariants in 1 ms returned sat
[2026-05-24 13:20:31] [INFO ] [Nat]Absence check using state equation in 25 ms returned sat
[2026-05-24 13:20:31] [INFO ] [Nat]Added 12 Read/Feed constraints in 10 ms returned sat
[2026-05-24 13:20:31] [INFO ] Computed and/alt/rep : 84/432/84 causal constraints (skipped 2 transitions) in 7 ms.
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 8 places in 43 ms of which 3 ms to minimize.
[2026-05-24 13:20:31] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 72 ms
[2026-05-24 13:20:31] [INFO ] Added : 36 causal constraints over 9 iterations in 195 ms. Result :sat
Minimization took 60 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:20:31] [INFO ] [Real]Absence check using 7 positive place invariants in 2 ms returned sat
[2026-05-24 13:20:31] [INFO ] [Real]Absence check using 7 positive and 6 generalized place invariants in 1 ms returned sat
[2026-05-24 13:20:31] [INFO ] [Real]Absence check using state equation in 24 ms returned sat
[2026-05-24 13:20:31] [INFO ] [Real]Added 12 Read/Feed constraints in 10 ms returned sat
[2026-05-24 13:20:31] [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 13:20:31] [INFO ] [Nat]Absence check using 7 positive place invariants in 3 ms returned sat
[2026-05-24 13:20:31] [INFO ] [Nat]Absence check using 7 positive and 6 generalized place invariants in 2 ms returned sat
[2026-05-24 13:20:31] [INFO ] [Nat]Absence check using state equation in 23 ms returned sat
[2026-05-24 13:20:31] [INFO ] [Nat]Added 12 Read/Feed constraints in 12 ms returned sat
[2026-05-24 13:20:31] [INFO ] Computed and/alt/rep : 84/432/84 causal constraints (skipped 2 transitions) in 6 ms.
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 4 places in 45 ms of which 2 ms to minimize.
[2026-05-24 13:20:31] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 69 ms
[2026-05-24 13:20:31] [INFO ] Added : 78 causal constraints over 16 iterations in 356 ms. Result :sat
Minimization took 96 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:20:32] [INFO ] [Real]Absence check using 7 positive place invariants in 3 ms returned sat
[2026-05-24 13:20:32] [INFO ] [Real]Absence check using 7 positive and 6 generalized place invariants in 2 ms returned sat
[2026-05-24 13:20:32] [INFO ] [Real]Absence check using state equation in 26 ms returned sat
[2026-05-24 13:20:32] [INFO ] [Real]Added 12 Read/Feed constraints in 12 ms returned sat
[2026-05-24 13:20:32] [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 13:20:32] [INFO ] [Nat]Absence check using 7 positive place invariants in 2 ms returned sat
[2026-05-24 13:20:32] [INFO ] [Nat]Absence check using 7 positive and 6 generalized place invariants in 1 ms returned sat
[2026-05-24 13:20:32] [INFO ] [Nat]Absence check using state equation in 26 ms returned sat
[2026-05-24 13:20:32] [INFO ] [Nat]Added 12 Read/Feed constraints in 9 ms returned sat
[2026-05-24 13:20:32] [INFO ] Computed and/alt/rep : 84/432/84 causal constraints (skipped 2 transitions) in 7 ms.
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 8 places in 47 ms of which 4 ms to minimize.
[2026-05-24 13:20:32] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 69 ms
[2026-05-24 13:20:32] [INFO ] Added : 80 causal constraints over 17 iterations in 318 ms. Result :sat
Minimization took 84 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:20:32] [INFO ] [Real]Absence check using 7 positive place invariants in 3 ms returned sat
[2026-05-24 13:20:32] [INFO ] [Real]Absence check using 7 positive and 6 generalized place invariants in 3 ms returned sat
[2026-05-24 13:20:32] [INFO ] [Real]Absence check using state equation in 29 ms returned sat
[2026-05-24 13:20:32] [INFO ] [Real]Added 12 Read/Feed constraints in 7 ms returned sat
[2026-05-24 13:20:32] [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 13:20:32] [INFO ] [Nat]Absence check using 7 positive place invariants in 5 ms returned sat
[2026-05-24 13:20:32] [INFO ] [Nat]Absence check using 7 positive and 6 generalized place invariants in 2 ms returned sat
[2026-05-24 13:20:32] [INFO ] [Nat]Absence check using state equation in 27 ms returned sat
[2026-05-24 13:20:32] [INFO ] [Nat]Added 12 Read/Feed constraints in 9 ms returned sat
[2026-05-24 13:20:32] [INFO ] Computed and/alt/rep : 84/432/84 causal constraints (skipped 2 transitions) in 4 ms.
[2026-05-24 13:20:33] [INFO ] Added : 81 causal constraints over 17 iterations in 283 ms. Result :sat
Minimization took 79 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[1, 1, 1, 1, 1, 1, 1, 1, 1]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[1, 1, 1, 1, 1, 1, 1, 1, 1]
Support contains 9 out of 87 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 87/87 places, 87/87 transitions.
Applied a total of 0 rules in 3 ms. Remains 87 /87 variables (removed 0) and now considering 87/87 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 3 ms. Remains : 87/87 places, 87/87 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 87/87 places, 87/87 transitions.
Applied a total of 0 rules in 2 ms. Remains 87 /87 variables (removed 0) and now considering 87/87 (removed 0) transitions.
[2026-05-24 13:20:33] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 13:20:33] [INFO ] Implicit Places using invariants in 77 ms returned []
[2026-05-24 13:20:33] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 13:20:33] [INFO ] State equation strengthened by 12 read => feed constraints.
[2026-05-24 13:20:33] [INFO ] Implicit Places using invariants and state equation in 175 ms returned []
Implicit Place search using SMT with State Equation took 253 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-24 13:20:33] [INFO ] Redundant transitions in 1 ms returned []
Running 86 sub problems to find dead transitions.
[2026-05-24 13:20:33] [INFO ] Invariant cache hit.
[2026-05-24 13:20:33] [INFO ] State equation strengthened by 12 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/86 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 86 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/86 variables, 6/8 constraints. Problems are: Problem set: 0 solved, 86 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/86 variables, 0/8 constraints. Problems are: Problem set: 0 solved, 86 unsolved
At refinement iteration 3 (OVERLAPS) 1/87 variables, 5/13 constraints. Problems are: Problem set: 0 solved, 86 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:34] [INFO ] Deduced a trap composed of 33 places in 53 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:34] [INFO ] Deduced a trap composed of 39 places in 47 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:34] [INFO ] Deduced a trap composed of 37 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 13:20:34] [INFO ] Deduced a trap composed of 34 places in 50 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:34] [INFO ] Deduced a trap composed of 41 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 13:20:35] [INFO ] Deduced a trap composed of 44 places in 48 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:35] [INFO ] Deduced a trap composed of 44 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 13:20:35] [INFO ] Deduced a trap composed of 44 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 13:20:35] [INFO ] Deduced a trap composed of 43 places in 46 ms of which 3 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/87 variables, 9/22 constraints. Problems are: Problem set: 0 solved, 86 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:35] [INFO ] Deduced a trap composed of 9 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 13:20:35] [INFO ] Deduced a trap composed of 39 places in 47 ms of which 4 ms to minimize.
At refinement iteration 5 (INCLUDED_ONLY) 0/87 variables, 2/24 constraints. Problems are: Problem set: 0 solved, 86 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:35] [INFO ] Deduced a trap composed of 34 places in 54 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:35] [INFO ] Deduced a trap composed of 33 places in 51 ms of which 5 ms to minimize.
At refinement iteration 6 (INCLUDED_ONLY) 0/87 variables, 2/26 constraints. Problems are: Problem set: 0 solved, 86 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/87 variables, 0/26 constraints. Problems are: Problem set: 0 solved, 86 unsolved
At refinement iteration 8 (OVERLAPS) 87/174 variables, 87/113 constraints. Problems are: Problem set: 0 solved, 86 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/174 variables, 12/125 constraints. Problems are: Problem set: 0 solved, 86 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/174 variables, 0/125 constraints. Problems are: Problem set: 0 solved, 86 unsolved
At refinement iteration 11 (OVERLAPS) 0/174 variables, 0/125 constraints. Problems are: Problem set: 0 solved, 86 unsolved
No progress, stopping.
After SMT solving in domain Real declared 174/174 variables, and 125 constraints, problems are : Problem set: 0 solved, 86 unsolved in 3611 ms.
Refiners :[Positive P Invariants (semi-flows): 7/7 constraints, Generalized P Invariants (flows): 6/6 constraints, State Equation: 87/87 constraints, ReadFeed: 12/12 constraints, PredecessorRefiner: 86/86 constraints, Known Traps: 13/13 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 86 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/86 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 86 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/86 variables, 6/8 constraints. Problems are: Problem set: 0 solved, 86 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/86 variables, 0/8 constraints. Problems are: Problem set: 0 solved, 86 unsolved
At refinement iteration 3 (OVERLAPS) 1/87 variables, 5/13 constraints. Problems are: Problem set: 0 solved, 86 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/87 variables, 13/26 constraints. Problems are: Problem set: 0 solved, 86 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/87 variables, 0/26 constraints. Problems are: Problem set: 0 solved, 86 unsolved
At refinement iteration 6 (OVERLAPS) 87/174 variables, 87/113 constraints. Problems are: Problem set: 0 solved, 86 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/174 variables, 12/125 constraints. Problems are: Problem set: 0 solved, 86 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/174 variables, 86/211 constraints. Problems are: Problem set: 0 solved, 86 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:38] [INFO ] Deduced a trap composed of 8 places in 52 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:39] [INFO ] Deduced a trap composed of 40 places in 52 ms of which 4 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/174 variables, 2/213 constraints. Problems are: Problem set: 0 solved, 86 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 41 places in 57 ms of which 3 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/174 variables, 1/214 constraints. Problems are: Problem set: 0 solved, 86 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:41] [INFO ] Deduced a trap along path composed of 12 places in 32 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:41] [INFO ] Deduced a trap along path composed of 10 places in 43 ms of which 2 ms to minimize.
At refinement iteration 11 (INCLUDED_ONLY) 0/174 variables, 2/216 constraints. Problems are: Problem set: 0 solved, 86 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/174 variables, 0/216 constraints. Problems are: Problem set: 0 solved, 86 unsolved
At refinement iteration 13 (OVERLAPS) 0/174 variables, 0/216 constraints. Problems are: Problem set: 0 solved, 86 unsolved
No progress, stopping.
After SMT solving in domain Int declared 174/174 variables, and 216 constraints, problems are : Problem set: 0 solved, 86 unsolved in 9973 ms.
Refiners :[Positive P Invariants (semi-flows): 7/7 constraints, Generalized P Invariants (flows): 6/6 constraints, State Equation: 87/87 constraints, ReadFeed: 12/12 constraints, PredecessorRefiner: 86/86 constraints, Known Traps: 16/16 constraints, Known Traps Along Path: 2/2 constraints]
After SMT, in 13642ms problems are : Problem set: 0 solved, 86 unsolved
Search for dead transitions found 0 dead transitions in 13650ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 13924 ms. Remains : 87/87 places, 87/87 transitions.
[2026-05-24 13:20:47] [INFO ] Flatten gal took : 69 ms
[2026-05-24 13:20:47] [INFO ] Flatten gal took : 27 ms
[2026-05-24 13:20:47] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality5442819950282508360.gal : 17 ms
[2026-05-24 13:20:47] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality11569741885922413011.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/ReachabilityCardinality5442819950282508360.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality11569741885922413011.prop' '--nowitness' '--gen-order' 'FOLLOW'

RANDOM walk for 40000 steps (5772 resets) in 1167 ms. (34 steps per ms) remains 18/18 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/ReachabilityCardinality11569741885922413011.prop.
BEST_FIRST walk for 4001 steps (357 resets) in 67 ms. (58 steps per ms) remains 18/18 properties
SDD proceeding with computation,18 properties remain. new max is 4
SDD size :1 after 2
SDD proceeding with computation,18 properties remain. new max is 8
SDD size :2 after 6
SDD proceeding with computation,18 properties remain. new max is 16
SDD size :6 after 10
SDD proceeding with computation,18 properties remain. new max is 32
SDD size :10 after 14
SDD proceeding with computation,18 properties remain. new max is 64
SDD size :14 after 27
SDD proceeding with computation,18 properties remain. new max is 128
SDD size :27 after 42
SDD proceeding with computation,18 properties remain. new max is 256
SDD size :42 after 91
SDD proceeding with computation,18 properties remain. new max is 512
SDD size :91 after 288
SDD proceeding with computation,18 properties remain. new max is 1024
SDD size :288 after 816
BEST_FIRST walk for 4001 steps (361 resets) in 71 ms. (55 steps per ms) remains 18/18 properties
Invariant property MIN6 does not hold.
Reachability property MAX6 is true.
Invariant property MIN5 does not hold.
Reachability property MAX5 is true.
SDD proceeding with computation,14 properties remain. new max is 1024
SDD size :816 after 4690
BEST_FIRST walk for 4003 steps (369 resets) in 84 ms. (47 steps per ms) remains 18/18 properties
SDD proceeding with computation,14 properties remain. new max is 2048
SDD size :4690 after 15443
BEST_FIRST walk for 4000 steps (357 resets) in 149 ms. (26 steps per ms) remains 18/18 properties
BEST_FIRST walk for 4002 steps (346 resets) in 40 ms. (97 steps per ms) remains 18/18 properties
BEST_FIRST walk for 4001 steps (351 resets) in 71 ms. (55 steps per ms) remains 18/18 properties
BEST_FIRST walk for 4001 steps (354 resets) in 120 ms. (33 steps per ms) remains 18/18 properties
BEST_FIRST walk for 4000 steps (364 resets) in 32 ms. (121 steps per ms) remains 18/18 properties
BEST_FIRST walk for 4000 steps (354 resets) in 25 ms. (153 steps per ms) remains 18/18 properties
Invariant property MIN0 does not hold.
Reachability property MAX0 is true.
SDD proceeding with computation,12 properties remain. new max is 2048
SDD size :15443 after 48910
BEST_FIRST walk for 4001 steps (376 resets) in 21 ms. (181 steps per ms) remains 18/18 properties
BEST_FIRST walk for 4001 steps (389 resets) in 23 ms. (166 steps per ms) remains 18/18 properties
BEST_FIRST walk for 4001 steps (359 resets) in 26 ms. (148 steps per ms) remains 18/18 properties
BEST_FIRST walk for 4000 steps (364 resets) in 23 ms. (166 steps per ms) remains 18/18 properties
BEST_FIRST walk for 4003 steps (358 resets) in 41 ms. (95 steps per ms) remains 18/18 properties
BEST_FIRST walk for 4001 steps (358 resets) in 40 ms. (97 steps per ms) remains 18/18 properties
SDD proceeding with computation,12 properties remain. new max is 4096
SDD size :48910 after 111625
BEST_FIRST walk for 4002 steps (356 resets) in 38 ms. (102 steps per ms) remains 18/18 properties
BEST_FIRST walk for 4001 steps (353 resets) in 18 ms. (210 steps per ms) remains 18/18 properties
BEST_FIRST walk for 4000 steps (374 resets) in 20 ms. (190 steps per ms) remains 18/18 properties
SDD proceeding with computation,12 properties remain. new max is 8192
SDD size :111625 after 232661
SDD proceeding with computation,12 properties remain. new max is 16384
SDD size :232661 after 497485
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.
Reachability property MAX3 is true.
Invariant property MIN2 does not hold.
Reachability property MAX2 is true.
Invariant property MIN1 does not hold.
Reachability property MAX1 is true.
SDD proceeding with computation,2 properties remain. new max is 16384
SDD size :853656 after 899936
SDD proceeding with computation,2 properties remain. new max is 32768
SDD size :6.18463e+06 after 8.47245e+06
SDD proceeding with computation,2 properties remain. new max is 65536
SDD size :1.23732e+08 after 1.27336e+08
Interrupted probabilistic random walk after 228811 steps, run timeout after 3001 ms. (steps per millisecond=76 ) properties seen :6 out of 18
Probabilistic random walk after 228811 steps, saw 114413 distinct states, run finished after 3005 ms. (steps per millisecond=76 ) properties seen :6
[2026-05-24 13:20:51] [INFO ] Invariant cache hit.
[2026-05-24 13:20:51] [INFO ] State equation strengthened by 12 read => feed constraints.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 1 (OVERLAPS) 63/64 variables, 5/5 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/64 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 3 (OVERLAPS) 18/82 variables, 6/11 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 13:20:51] [INFO ] Deduced a trap composed of 4 places in 48 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:51] [INFO ] Deduced a trap composed of 7 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 13:20:51] [INFO ] Deduced a trap composed of 8 places in 37 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:51] [INFO ] Deduced a trap composed of 10 places in 35 ms of which 3 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/82 variables, 4/15 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/82 variables, 0/15 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 6 (OVERLAPS) 87/169 variables, 82/97 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/169 variables, 12/109 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/169 variables, 0/109 constraints. Problems are: Problem set: 0 solved, 2 unsolved
All remaining problems are real, not stopping.
At refinement iteration 9 (OVERLAPS) 5/174 variables, 5/114 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/174 variables, 2/116 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/174 variables, 0/116 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 12 (OVERLAPS) 0/174 variables, 0/116 constraints. Problems are: Problem set: 0 solved, 2 unsolved
No progress, stopping.
After SMT solving in domain Real declared 174/174 variables, and 116 constraints, problems are : Problem set: 0 solved, 2 unsolved in 295 ms.
Refiners :[Positive P Invariants (semi-flows): 7/7 constraints, Generalized P Invariants (flows): 6/6 constraints, State Equation: 87/87 constraints, ReadFeed: 12/12 constraints, PredecessorRefiner: 2/2 constraints, Known Traps: 4/4 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) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 1 (OVERLAPS) 63/64 variables, 5/5 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/64 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 3 (OVERLAPS) 18/82 variables, 6/11 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/82 variables, 4/15 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 13:20:51] [INFO ] Deduced a trap composed of 3 places in 46 ms of which 3 ms to minimize.
At refinement iteration 5 (INCLUDED_ONLY) 0/82 variables, 1/16 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/82 variables, 0/16 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 7 (OVERLAPS) 87/169 variables, 82/98 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/169 variables, 12/110 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/169 variables, 2/112 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/169 variables, 0/112 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 11 (OVERLAPS) 5/174 variables, 5/117 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/174 variables, 2/119 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/174 variables, 0/119 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 14 (OVERLAPS) 0/174 variables, 0/119 constraints. Problems are: Problem set: 0 solved, 2 unsolved
No progress, stopping.
After SMT solving in domain Int declared 174/174 variables, and 119 constraints, problems are : Problem set: 0 solved, 2 unsolved in 187 ms.
Refiners :[Positive P Invariants (semi-flows): 7/7 constraints, Generalized P Invariants (flows): 6/6 constraints, State Equation: 87/87 constraints, ReadFeed: 12/12 constraints, PredecessorRefiner: 2/2 constraints, Known Traps: 5/5 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 488ms problems are : Problem set: 0 solved, 2 unsolved
Fused 2 Parikh solutions to 1 different solutions.
Parikh walk visited 0 properties in 235 ms.
Support contains 1 out of 87 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 87/87 places, 87/87 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 4 transitions
Trivial Post-agglo rules discarded 4 transitions
Performed 4 trivial Post agglomeration. Transition count delta: 4
Iterating post reduction 0 with 4 rules applied. Total rules applied 4 place count 87 transition count 83
Reduce places removed 4 places and 0 transitions.
Iterating post reduction 1 with 4 rules applied. Total rules applied 8 place count 83 transition count 83
Performed 2 Post agglomeration using F-continuation condition.Transition count delta: 2
Deduced a syphon composed of 2 places in 0 ms
Reduce places removed 2 places and 0 transitions.
Iterating global reduction 2 with 4 rules applied. Total rules applied 12 place count 81 transition count 81
Partial Free-agglomeration rule applied 4 times.
Drop transitions (Partial Free agglomeration) removed 4 transitions
Iterating global reduction 2 with 4 rules applied. Total rules applied 16 place count 81 transition count 81
Applied a total of 16 rules in 8 ms. Remains 81 /87 variables (removed 6) and now considering 81/87 (removed 6) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 8 ms. Remains : 81/87 places, 81/87 transitions.
RANDOM walk for 40000 steps (5755 resets) in 138 ms. (287 steps per ms) remains 2/2 properties
BEST_FIRST walk for 40000 steps (3612 resets) in 106 ms. (373 steps per ms) remains 2/2 properties
BEST_FIRST walk for 40002 steps (3621 resets) in 103 ms. (384 steps per ms) remains 2/2 properties
SDD proceeding with computation,2 properties remain. new max is 131072
SDD size :7.12585e+08 after 7.39647e+08
Interrupted probabilistic random walk after 577123 steps, run timeout after 3001 ms. (steps per millisecond=192 ) properties seen :0 out of 2
Probabilistic random walk after 577123 steps, saw 288813 distinct states, run finished after 3001 ms. (steps per millisecond=192 ) properties seen :0
// Phase 1: matrix 81 rows 81 cols
[2026-05-24 13:20:55] [INFO ] Computed 13 invariants in 4 ms
[2026-05-24 13:20:55] [INFO ] State equation strengthened by 14 read => feed constraints.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 1 (OVERLAPS) 57/58 variables, 5/5 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 13:20:55] [INFO ] Deduced a trap composed of 3 places in 46 ms of which 2 ms to minimize.
At refinement iteration 2 (INCLUDED_ONLY) 0/58 variables, 1/6 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/58 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 4 (OVERLAPS) 18/76 variables, 6/12 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 13:20:55] [INFO ] Deduced a trap composed of 4 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 13:20:55] [INFO ] Deduced a trap composed of 6 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 13:20:55] [INFO ] Deduced a trap composed of 7 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 13:20:55] [INFO ] Deduced a trap composed of 9 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 13:20:55] [INFO ] Deduced a trap composed of 10 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 13:20:55] [INFO ] Deduced a trap composed of 10 places in 50 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:55] [INFO ] Deduced a trap composed of 13 places in 36 ms of which 3 ms to minimize.
At refinement iteration 5 (INCLUDED_ONLY) 0/76 variables, 7/19 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/76 variables, 0/19 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 7 (OVERLAPS) 81/157 variables, 76/95 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/157 variables, 14/109 constraints. Problems are: Problem set: 0 solved, 2 unsolved
All remaining problems are real, not stopping.
At refinement iteration 9 (INCLUDED_ONLY) 0/157 variables, 0/109 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 10 (OVERLAPS) 5/162 variables, 5/114 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/162 variables, 2/116 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/162 variables, 0/116 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 13 (OVERLAPS) 0/162 variables, 0/116 constraints. Problems are: Problem set: 0 solved, 2 unsolved
No progress, stopping.
After SMT solving in domain Real declared 162/162 variables, and 116 constraints, problems are : Problem set: 0 solved, 2 unsolved in 495 ms.
Refiners :[Positive P Invariants (semi-flows): 7/7 constraints, Generalized P Invariants (flows): 6/6 constraints, State Equation: 81/81 constraints, ReadFeed: 14/14 constraints, PredecessorRefiner: 2/2 constraints, Known Traps: 8/8 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) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 1 (OVERLAPS) 57/58 variables, 5/5 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/58 variables, 1/6 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/58 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 4 (OVERLAPS) 18/76 variables, 6/12 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/76 variables, 7/19 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 13:20:55] [INFO ] Deduced a trap composed of 7 places in 49 ms of which 4 ms to minimize.
At refinement iteration 6 (INCLUDED_ONLY) 0/76 variables, 1/20 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/76 variables, 0/20 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 8 (OVERLAPS) 81/157 variables, 76/96 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/157 variables, 14/110 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/157 variables, 2/112 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/157 variables, 0/112 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 12 (OVERLAPS) 5/162 variables, 5/117 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/162 variables, 2/119 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/162 variables, 0/119 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 15 (OVERLAPS) 0/162 variables, 0/119 constraints. Problems are: Problem set: 0 solved, 2 unsolved
No progress, stopping.
After SMT solving in domain Int declared 162/162 variables, and 119 constraints, problems are : Problem set: 0 solved, 2 unsolved in 196 ms.
Refiners :[Positive P Invariants (semi-flows): 7/7 constraints, Generalized P Invariants (flows): 6/6 constraints, State Equation: 81/81 constraints, ReadFeed: 14/14 constraints, PredecessorRefiner: 2/2 constraints, Known Traps: 9/9 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 699ms problems are : Problem set: 0 solved, 2 unsolved
Fused 2 Parikh solutions to 1 different solutions.
Parikh walk visited 0 properties in 174 ms.
Support contains 1 out of 81 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 81/81 places, 81/81 transitions.
Applied a total of 0 rules in 3 ms. Remains 81 /81 variables (removed 0) and now considering 81/81 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 3 ms. Remains : 81/81 places, 81/81 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 81/81 places, 81/81 transitions.
Applied a total of 0 rules in 3 ms. Remains 81 /81 variables (removed 0) and now considering 81/81 (removed 0) transitions.
[2026-05-24 13:20:55] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 13:20:56] [INFO ] Implicit Places using invariants in 64 ms returned []
[2026-05-24 13:20:56] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 13:20:56] [INFO ] State equation strengthened by 14 read => feed constraints.
[2026-05-24 13:20:56] [INFO ] Implicit Places using invariants and state equation in 193 ms returned []
Implicit Place search using SMT with State Equation took 258 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-24 13:20:56] [INFO ] Redundant transitions in 2 ms returned []
Running 80 sub problems to find dead transitions.
[2026-05-24 13:20:56] [INFO ] Invariant cache hit.
[2026-05-24 13:20:56] [INFO ] State equation strengthened by 14 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/80 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 80 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/80 variables, 6/8 constraints. Problems are: Problem set: 0 solved, 80 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/80 variables, 0/8 constraints. Problems are: Problem set: 0 solved, 80 unsolved
At refinement iteration 3 (OVERLAPS) 1/81 variables, 5/13 constraints. Problems are: Problem set: 0 solved, 80 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/81 variables, 0/13 constraints. Problems are: Problem set: 0 solved, 80 unsolved
At refinement iteration 5 (OVERLAPS) 81/162 variables, 81/94 constraints. Problems are: Problem set: 0 solved, 80 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/162 variables, 14/108 constraints. Problems are: Problem set: 0 solved, 80 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/162 variables, 0/108 constraints. Problems are: Problem set: 0 solved, 80 unsolved
At refinement iteration 8 (OVERLAPS) 0/162 variables, 0/108 constraints. Problems are: Problem set: 0 solved, 80 unsolved
No progress, stopping.
After SMT solving in domain Real declared 162/162 variables, and 108 constraints, problems are : Problem set: 0 solved, 80 unsolved in 1672 ms.
Refiners :[Positive P Invariants (semi-flows): 7/7 constraints, Generalized P Invariants (flows): 6/6 constraints, State Equation: 81/81 constraints, ReadFeed: 14/14 constraints, PredecessorRefiner: 80/80 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 80 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/80 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 80 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/80 variables, 6/8 constraints. Problems are: Problem set: 0 solved, 80 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/80 variables, 0/8 constraints. Problems are: Problem set: 0 solved, 80 unsolved
At refinement iteration 3 (OVERLAPS) 1/81 variables, 5/13 constraints. Problems are: Problem set: 0 solved, 80 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/81 variables, 0/13 constraints. Problems are: Problem set: 0 solved, 80 unsolved
At refinement iteration 5 (OVERLAPS) 81/162 variables, 81/94 constraints. Problems are: Problem set: 0 solved, 80 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/162 variables, 14/108 constraints. Problems are: Problem set: 0 solved, 80 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/162 variables, 80/188 constraints. Problems are: Problem set: 0 solved, 80 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:20:59] [INFO ] Deduced a trap composed of 20 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 13:20:59] [INFO ] Deduced a trap composed of 36 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 13:20:59] [INFO ] Deduced a trap composed of 36 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 13:20:59] [INFO ] Deduced a trap composed of 32 places in 55 ms of which 6 ms to minimize.
At refinement iteration 8 (INCLUDED_ONLY) 0/162 variables, 4/192 constraints. Problems are: Problem set: 0 solved, 80 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:21:00] [INFO ] Deduced a trap composed of 27 places in 53 ms of which 4 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/162 variables, 1/193 constraints. Problems are: Problem set: 0 solved, 80 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:21:01] [INFO ] Deduced a trap along path composed of 10 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 13:21:02] [INFO ] Deduced a trap along path composed of 36 places in 44 ms of which 0 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:21:02] [INFO ] Deduced a trap along path composed of 21 places in 36 ms of which 1 ms to minimize.
SDD proceeding with computation,2 properties remain. new max is 262144
SDD size :3.32104e+09 after 3.3249e+09
At refinement iteration 10 (INCLUDED_ONLY) 0/162 variables, 3/196 constraints. Problems are: Problem set: 0 solved, 80 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:21:03] [INFO ] Deduced a trap composed of 23 places in 56 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:21:04] [INFO ] Deduced a trap composed of 11 places in 33 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:21:04] [INFO ] Deduced a trap composed of 9 places in 54 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:21:04] [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 13:21:04] [INFO ] Deduced a trap composed of 3 places in 63 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:21:05] [INFO ] Deduced a trap composed of 4 places in 50 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:21:05] [INFO ] Deduced a trap composed of 6 places in 50 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:21:05] [INFO ] Deduced a trap composed of 8 places in 49 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:21:05] [INFO ] Deduced a trap composed of 20 places in 55 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:21:05] [INFO ] Deduced a trap composed of 21 places in 53 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:21:05] [INFO ] Deduced a trap composed of 21 places in 56 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:21:06] [INFO ] Deduced a trap composed of 15 places in 30 ms of which 2 ms to minimize.
At refinement iteration 11 (INCLUDED_ONLY) 0/162 variables, 12/208 constraints. Problems are: Problem set: 0 solved, 80 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:21:06] [INFO ] Deduced a trap composed of 14 places in 41 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:21:07] [INFO ] Deduced a trap composed of 33 places in 47 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:21:07] [INFO ] Deduced a trap composed of 34 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 13:21:07] [INFO ] Deduced a trap composed of 23 places in 57 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:21:07] [INFO ] Deduced a trap composed of 24 places in 49 ms of which 6 ms to minimize.
At refinement iteration 12 (INCLUDED_ONLY) 0/162 variables, 5/213 constraints. Problems are: Problem set: 0 solved, 80 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:21:09] [INFO ] Deduced a trap composed of 34 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 13:21:09] [INFO ] Deduced a trap composed of 35 places in 53 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:21:09] [INFO ] Deduced a trap composed of 24 places in 58 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:21:09] [INFO ] Deduced a trap composed of 25 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 13:21:09] [INFO ] Deduced a trap composed of 25 places in 48 ms of which 5 ms to minimize.
At refinement iteration 13 (INCLUDED_ONLY) 0/162 variables, 5/218 constraints. Problems are: Problem set: 0 solved, 80 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:21:11] [INFO ] Deduced a trap composed of 30 places in 50 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:21:11] [INFO ] Deduced a trap composed of 30 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 13:21:11] [INFO ] Deduced a trap composed of 26 places in 53 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:21:11] [INFO ] Deduced a trap composed of 29 places in 51 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:21:11] [INFO ] Deduced a trap composed of 30 places in 48 ms of which 5 ms to minimize.
At refinement iteration 14 (INCLUDED_ONLY) 0/162 variables, 5/223 constraints. Problems are: Problem set: 0 solved, 80 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:21:14] [INFO ] Deduced a trap along path composed of 30 places in 37 ms of which 0 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:21:14] [INFO ] Deduced a trap along path composed of 38 places in 41 ms of which 0 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:21:14] [INFO ] Deduced a trap along path composed of 37 places in 37 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:21:15] [INFO ] Deduced a trap along path composed of 38 places in 34 ms of which 0 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:21:15] [INFO ] Deduced a trap along path composed of 18 places in 34 ms of which 0 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:21:15] [INFO ] Deduced a trap along path composed of 19 places in 36 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:21:15] [INFO ] Deduced a trap along path composed of 8 places in 26 ms of which 0 ms to minimize.
At refinement iteration 15 (INCLUDED_ONLY) 0/162 variables, 7/230 constraints. Problems are: Problem set: 0 solved, 80 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:21:17] [INFO ] Deduced a trap composed of 23 places in 53 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:21:17] [INFO ] Deduced a trap composed of 24 places in 51 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:21:18] [INFO ] Deduced a trap composed of 23 places in 53 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:21:18] [INFO ] Deduced a trap composed of 24 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 13:21:18] [INFO ] Deduced a trap composed of 25 places in 50 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:21:18] [INFO ] Deduced a trap composed of 25 places in 52 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:21:18] [INFO ] Deduced a trap composed of 25 places in 52 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:21:18] [INFO ] Deduced a trap composed of 25 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 13:21:18] [INFO ] Deduced a trap composed of 25 places in 47 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:21:18] [INFO ] Deduced a trap composed of 23 places in 52 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:21:19] [INFO ] Deduced a trap composed of 29 places in 50 ms of which 7 ms to minimize.
At refinement iteration 16 (INCLUDED_ONLY) 0/162 variables, 11/241 constraints. Problems are: Problem set: 0 solved, 80 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:21:23] [INFO ] Deduced a trap composed of 33 places in 53 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:21:23] [INFO ] Deduced a trap composed of 35 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 13:21:23] [INFO ] Deduced a trap composed of 36 places in 44 ms of which 5 ms to minimize.
At refinement iteration 17 (INCLUDED_ONLY) 0/162 variables, 3/244 constraints. Problems are: Problem set: 0 solved, 80 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 162/162 variables, and 244 constraints, problems are : Problem set: 0 solved, 80 unsolved in 30023 ms.
Refiners :[Positive P Invariants (semi-flows): 7/7 constraints, Generalized P Invariants (flows): 6/6 constraints, State Equation: 81/81 constraints, ReadFeed: 14/14 constraints, PredecessorRefiner: 80/80 constraints, Known Traps: 46/46 constraints, Known Traps Along Path: 10/10 constraints]
After SMT, in 31721ms problems are : Problem set: 0 solved, 80 unsolved
Search for dead transitions found 0 dead transitions in 31724ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 31994 ms. Remains : 81/81 places, 81/81 transitions.
Attempting over-approximation, by ignoring read arcs.
Performed 6 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 0 with 6 Pre rules applied. Total rules applied 0 place count 81 transition count 75
Deduced a syphon composed of 6 places in 0 ms
Reduce places removed 6 places and 0 transitions.
Iterating global reduction 0 with 12 rules applied. Total rules applied 12 place count 75 transition count 75
Discarding 3 places :
Symmetric choice reduction at 0 with 3 rule applications. Total rules 15 place count 72 transition count 72
Iterating global reduction 0 with 3 rules applied. Total rules applied 18 place count 72 transition count 72
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 0 with 2 rules applied. Total rules applied 20 place count 71 transition count 71
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 0 with 1 rules applied. Total rules applied 21 place count 71 transition count 70
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 22 place count 70 transition count 70
Applied a total of 22 rules in 22 ms. Remains 70 /81 variables (removed 11) and now considering 70/81 (removed 11) transitions.
Running SMT prover for 2 properties.
// Phase 1: matrix 70 rows 70 cols
[2026-05-24 13:21:27] [INFO ] Computed 13 invariants in 2 ms
Starting Z3 with timeout 450.0 s and query timeout 45000.0 ms
[2026-05-24 13:21:27] [INFO ] [Real]Absence check using 5 positive place invariants in 1 ms returned sat
[2026-05-24 13:21:27] [INFO ] [Real]Absence check using 5 positive and 8 generalized place invariants in 2 ms returned sat
[2026-05-24 13:21:28] [INFO ] After 29ms SMT Verify possible using state equation in real domain returned unsat :0 sat :2
[2026-05-24 13:21:28] [INFO ] State equation strengthened by 1 read => feed constraints.
[2026-05-24 13:21:28] [INFO ] After 7ms SMT Verify possible using 1 Read/Feed constraints in real domain returned unsat :0 sat :2
TRAPS : Iteration 0
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:21:28] [INFO ] Deduced a trap composed of 7 places in 44 ms of which 3 ms to minimize.
TRAPS : Iteration 1
[2026-05-24 13:21:28] [INFO ] After 75ms SMT Verify possible using trap constraints in real domain returned unsat :0 sat :0 real:2
[2026-05-24 13:21:28] [INFO ] After 147ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:2
Starting Z3 with timeout 450.0 s and query timeout 45000.0 ms
[2026-05-24 13:21:28] [INFO ] [Nat]Absence check using 5 positive place invariants in 1 ms returned sat
[2026-05-24 13:21:28] [INFO ] [Nat]Absence check using 5 positive and 8 generalized place invariants in 2 ms returned sat
[2026-05-24 13:21:28] [INFO ] After 28ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :2
[2026-05-24 13:21:28] [INFO ] After 6ms SMT Verify possible using 1 Read/Feed constraints in natural domain returned unsat :0 sat :2
TRAPS : Iteration 0
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:21:28] [INFO ] Deduced a trap composed of 7 places in 38 ms of which 2 ms to minimize.
[2026-05-24 13:21:28] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 44 ms
TRAPS : Iteration 1
[2026-05-24 13:21:28] [INFO ] After 67ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :2
[2026-05-24 13:21:28] [INFO ] After 136ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :2
[2026-05-24 13:21:28] [INFO ] Flatten gal took : 9 ms
[2026-05-24 13:21:28] [INFO ] Flatten gal took : 9 ms
[2026-05-24 13:21:28] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality4785866380272184805.gal : 2 ms
[2026-05-24 13:21:28] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality6205155622589101466.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/ReachabilityCardinality4785866380272184805.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality6205155622589101466.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...328
Loading property file /tmp/ReachabilityCardinality6205155622589101466.prop.
SDD proceeding with computation,2 properties remain. new max is 4
SDD size :1 after 3
SDD proceeding with computation,2 properties remain. new max is 8
SDD size :3 after 13
SDD proceeding with computation,2 properties remain. new max is 16
SDD size :13 after 27
SDD proceeding with computation,2 properties remain. new max is 32
SDD size :27 after 48
SDD proceeding with computation,2 properties remain. new max is 64
SDD size :48 after 63
SDD proceeding with computation,2 properties remain. new max is 128
SDD size :63 after 152
SDD proceeding with computation,2 properties remain. new max is 256
SDD size :152 after 256
SDD proceeding with computation,2 properties remain. new max is 512
SDD size :256 after 568
SDD proceeding with computation,2 properties remain. new max is 1024
SDD size :568 after 1402
SDD proceeding with computation,2 properties remain. new max is 2048
SDD size :1402 after 3173
SDD proceeding with computation,2 properties remain. new max is 4096
SDD size :3173 after 6734
SDD proceeding with computation,2 properties remain. new max is 8192
SDD size :6734 after 13848
SDD proceeding with computation,2 properties remain. new max is 16384
SDD size :13848 after 28045
SDD proceeding with computation,2 properties remain. new max is 32768
SDD size :28045 after 56429
SDD proceeding with computation,2 properties remain. new max is 65536
SDD size :56429 after 113213
Detected timeout of ITS tools.
[2026-05-24 13:21:37] [INFO ] Flatten gal took : 12 ms
[2026-05-24 13:21:37] [INFO ] Applying decomposition
[2026-05-24 13:21:37] [INFO ] Flatten gal took : 8 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/graph8623638001217373207.txt' '-o' '/tmp/graph8623638001217373207.bin' '-w' '/tmp/graph8623638001217373207.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/louvain-linux64' '/tmp/graph8623638001217373207.bin' '-l' '-1' '-v' '-w' '/tmp/graph8623638001217373207.weights' '-q' '0' '-e' '0.001'
[2026-05-24 13:21:38] [INFO ] Decomposing Gal with order
[2026-05-24 13:21:38] [INFO ] Rewriting arrays to variables to allow decomposition.
[2026-05-24 13:21:38] [INFO ] Removed a total of 41 redundant transitions.
[2026-05-24 13:21:38] [INFO ] Flatten gal took : 62 ms
[2026-05-24 13:21:38] [INFO ] Fuse similar labels procedure discarded/fused a total of 36 labels/synchronizations in 15 ms.
[2026-05-24 13:21:38] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality5932953538212014910.gal : 10 ms
[2026-05-24 13:21:38] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality4211023812864956909.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/ReachabilityCardinality5932953538212014910.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality4211023812864956909.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 ...307
Loading property file /tmp/ReachabilityCardinality4211023812864956909.prop.
SDD proceeding with computation,2 properties remain. new max is 4
SDD size :1 after 4
SDD proceeding with computation,2 properties remain. new max is 8
SDD size :4 after 10
SDD proceeding with computation,2 properties remain. new max is 16
SDD size :10 after 17
SDD proceeding with computation,2 properties remain. new max is 32
SDD size :42 after 48
SDD proceeding with computation,2 properties remain. new max is 64
SDD size :181 after 212
SDD proceeding with computation,2 properties remain. new max is 128
SDD size :1142 after 1174
Detected timeout of ITS tools.
[2026-05-24 13:21:43] [INFO ] Flatten gal took : 6 ms
[2026-05-24 13:21:43] [INFO ] Applying decomposition
[2026-05-24 13:21:43] [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/graph8664512398260150688.txt' '-o' '/tmp/graph8664512398260150688.bin' '-w' '/tmp/graph8664512398260150688.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/louvain-linux64' '/tmp/graph8664512398260150688.bin' '-l' '-1' '-v' '-w' '/tmp/graph8664512398260150688.weights' '-q' '0' '-e' '0.001'
[2026-05-24 13:21:43] [INFO ] Decomposing Gal with order
[2026-05-24 13:21:43] [INFO ] Rewriting arrays to variables to allow decomposition.
[2026-05-24 13:21:43] [INFO ] Removed a total of 43 redundant transitions.
[2026-05-24 13:21:43] [INFO ] Flatten gal took : 11 ms
[2026-05-24 13:21:43] [INFO ] Fuse similar labels procedure discarded/fused a total of 12 labels/synchronizations in 3 ms.
[2026-05-24 13:21:43] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality7733201884391935062.gal : 3 ms
[2026-05-24 13:21:43] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality6010317496673689252.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/ReachabilityCardinality7733201884391935062.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality6010317496673689252.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 ...307
Loading property file /tmp/ReachabilityCardinality6010317496673689252.prop.
SDD proceeding with computation,2 properties remain. new max is 4
SDD size :197 after 200
SDD proceeding with computation,2 properties remain. new max is 256
SDD size :747323 after 747335
SDD proceeding with computation,2 properties remain. new max is 512
SDD size :747335 after 747592
Detected timeout of ITS tools.
Over-approximation ignoring read arcs solved 0 properties in 30469 ms.
ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
FORMULA DoubleExponent-PT-004-UpperBounds-11 1 TECHNIQUES REACHABILITY_MAX
FORMULA DoubleExponent-PT-004-UpperBounds-09 1 TECHNIQUES REACHABILITY_MAX
FORMULA DoubleExponent-PT-004-UpperBounds-08 1 TECHNIQUES REACHABILITY_MAX
FORMULA DoubleExponent-PT-004-UpperBounds-06 1 TECHNIQUES REACHABILITY_MAX
FORMULA DoubleExponent-PT-004-UpperBounds-05 1 TECHNIQUES REACHABILITY_MAX
FORMULA DoubleExponent-PT-004-UpperBounds-04 1 TECHNIQUES REACHABILITY_MAX
FORMULA DoubleExponent-PT-004-UpperBounds-02 1 TECHNIQUES REACHABILITY_MAX
FORMULA DoubleExponent-PT-004-UpperBounds-01 1 TECHNIQUES REACHABILITY_MAX
Current structural bounds on expressions (After reachability solving 8 queries.) : Max Seen:[0] Max Struct:[1]
Starting property specific reduction for DoubleExponent-PT-004-UpperBounds-12
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:[1]
Current structural bounds on expressions (Before main loop) : Max Seen:[0] Max Struct:[1]
// Phase 1: matrix 87 rows 87 cols
[2026-05-24 13:21:58] [INFO ] Computed 13 invariants in 2 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[1]
RANDOM walk for 10000 steps (1449 resets) in 10 ms. (909 steps per ms)
BEST_FIRST walk for 10000 steps (910 resets) in 7 ms. (1250 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0] Max Struct:[1]
[2026-05-24 13:21:58] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:21:58] [INFO ] [Real]Absence check using 7 positive place invariants in 3 ms returned sat
[2026-05-24 13:21:58] [INFO ] [Real]Absence check using 7 positive and 6 generalized place invariants in 1 ms returned sat
[2026-05-24 13:21:58] [INFO ] [Real]Absence check using state equation in 25 ms returned sat
[2026-05-24 13:21:58] [INFO ] State equation strengthened by 12 read => feed constraints.
[2026-05-24 13:21:58] [INFO ] [Real]Added 12 Read/Feed constraints in 8 ms returned sat
[2026-05-24 13:21:58] [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 13:21:58] [INFO ] [Nat]Absence check using 7 positive place invariants in 2 ms returned sat
[2026-05-24 13:21:58] [INFO ] [Nat]Absence check using 7 positive and 6 generalized place invariants in 1 ms returned sat
[2026-05-24 13:21:58] [INFO ] [Nat]Absence check using state equation in 27 ms returned sat
[2026-05-24 13:21:58] [INFO ] [Nat]Added 12 Read/Feed constraints in 10 ms returned sat
[2026-05-24 13:21:58] [INFO ] Computed and/alt/rep : 84/432/84 causal constraints (skipped 2 transitions) in 6 ms.
[2026-05-24 13:21:58] [INFO ] Added : 81 causal constraints over 17 iterations in 292 ms. Result :sat
Minimization took 82 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0] Max Struct:[1]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0] Max Struct:[1]
Support contains 1 out of 87 places. Attempting structural reductions.
Drop transitions (Removing consumers from one bounded place p193) removed 1 transitions
Starting structural reductions in REACHABILITY mode, iteration 0 : 87/87 places, 86/86 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 4 transitions
Trivial Post-agglo rules discarded 4 transitions
Performed 4 trivial Post agglomeration. Transition count delta: 4
Iterating post reduction 0 with 4 rules applied. Total rules applied 4 place count 87 transition count 82
Reduce places removed 4 places and 0 transitions.
Iterating post reduction 1 with 4 rules applied. Total rules applied 8 place count 83 transition count 82
Performed 2 Post agglomeration using F-continuation condition.Transition count delta: 2
Deduced a syphon composed of 2 places in 0 ms
Reduce places removed 2 places and 0 transitions.
Iterating global reduction 2 with 4 rules applied. Total rules applied 12 place count 81 transition count 80
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 2 with 1 rules applied. Total rules applied 13 place count 81 transition count 79
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 2 with 1 rules applied. Total rules applied 14 place count 80 transition count 79
Partial Free-agglomeration rule applied 3 times.
Drop transitions (Partial Free agglomeration) removed 3 transitions
Iterating global reduction 3 with 3 rules applied. Total rules applied 17 place count 80 transition count 79
Applied a total of 17 rules in 11 ms. Remains 80 /87 variables (removed 7) and now considering 79/86 (removed 7) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 11 ms. Remains : 80/87 places, 79/86 transitions.
// Phase 1: matrix 79 rows 80 cols
[2026-05-24 13:21:59] [INFO ] Computed 13 invariants in 2 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[1]
RANDOM walk for 1000000 steps (144298 resets) in 615 ms. (1623 steps per ms)
BEST_FIRST walk for 1000001 steps (91603 resets) in 433 ms. (2304 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0] Max Struct:[1]
[2026-05-24 13:22:00] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:22:00] [INFO ] [Real]Absence check using 7 positive place invariants in 2 ms returned sat
[2026-05-24 13:22:00] [INFO ] [Real]Absence check using 7 positive and 6 generalized place invariants in 1 ms returned sat
[2026-05-24 13:22:00] [INFO ] [Real]Absence check using state equation in 31 ms returned sat
[2026-05-24 13:22:00] [INFO ] State equation strengthened by 13 read => feed constraints.
[2026-05-24 13:22:00] [INFO ] [Real]Added 13 Read/Feed constraints in 8 ms returned sat
[2026-05-24 13:22:00] [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 13:22:00] [INFO ] [Nat]Absence check using 7 positive place invariants in 2 ms returned sat
[2026-05-24 13:22:00] [INFO ] [Nat]Absence check using 7 positive and 6 generalized place invariants in 5 ms returned sat
[2026-05-24 13:22:00] [INFO ] [Nat]Absence check using state equation in 25 ms returned sat
[2026-05-24 13:22:00] [INFO ] [Nat]Added 13 Read/Feed constraints in 10 ms returned sat
[2026-05-24 13:22:00] [INFO ] Computed and/alt/rep : 75/432/75 causal constraints (skipped 3 transitions) in 8 ms.
[2026-05-24 13:22:00] [INFO ] Added : 70 causal constraints over 14 iterations in 273 ms. Result :sat
Minimization took 128 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0] Max Struct:[1]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0] Max Struct:[1]
Support contains 1 out of 80 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 80/80 places, 79/79 transitions.
Applied a total of 0 rules in 2 ms. Remains 80 /80 variables (removed 0) and now considering 79/79 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 3 ms. Remains : 80/80 places, 79/79 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 80/80 places, 79/79 transitions.
Applied a total of 0 rules in 2 ms. Remains 80 /80 variables (removed 0) and now considering 79/79 (removed 0) transitions.
[2026-05-24 13:22:00] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 13:22:00] [INFO ] Implicit Places using invariants in 72 ms returned []
[2026-05-24 13:22:00] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 13:22:00] [INFO ] State equation strengthened by 13 read => feed constraints.
[2026-05-24 13:22:00] [INFO ] Implicit Places using invariants and state equation in 188 ms returned [30]
Discarding 1 places :
Implicit Place search using SMT with State Equation took 265 ms to find 1 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 1 : 79/80 places, 79/79 transitions.
Applied a total of 0 rules in 4 ms. Remains 79 /79 variables (removed 0) and now considering 79/79 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 2 iterations and 271 ms. Remains : 79/80 places, 79/79 transitions.
// Phase 1: matrix 79 rows 79 cols
[2026-05-24 13:22:00] [INFO ] Computed 12 invariants in 2 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[1]
RANDOM walk for 1000000 steps (144255 resets) in 603 ms. (1655 steps per ms)
BEST_FIRST walk for 1000000 steps (91607 resets) in 458 ms. (2178 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0] Max Struct:[1]
[2026-05-24 13:22:02] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:22:02] [INFO ] [Real]Absence check using 4 positive place invariants in 2 ms returned sat
[2026-05-24 13:22:02] [INFO ] [Real]Absence check using 4 positive and 8 generalized place invariants in 2 ms returned sat
[2026-05-24 13:22:02] [INFO ] [Real]Absence check using state equation in 25 ms returned sat
[2026-05-24 13:22:02] [INFO ] State equation strengthened by 13 read => feed constraints.
[2026-05-24 13:22:02] [INFO ] [Real]Added 13 Read/Feed constraints in 6 ms returned sat
[2026-05-24 13:22:02] [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 13:22:02] [INFO ] [Nat]Absence check using 4 positive place invariants in 1 ms returned sat
[2026-05-24 13:22:02] [INFO ] [Nat]Absence check using 4 positive and 8 generalized place invariants in 2 ms returned sat
[2026-05-24 13:22:02] [INFO ] [Nat]Absence check using state equation in 28 ms returned sat
[2026-05-24 13:22:02] [INFO ] [Nat]Added 13 Read/Feed constraints in 8 ms returned sat
[2026-05-24 13:22:02] [INFO ] Computed and/alt/rep : 76/439/76 causal constraints (skipped 2 transitions) in 5 ms.
[2026-05-24 13:22:02] [INFO ] Added : 62 causal constraints over 13 iterations in 192 ms. Result :sat
Minimization took 78 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0] Max Struct:[1]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0] Max Struct:[1]
Support contains 1 out of 79 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 79/79 places, 79/79 transitions.
Applied a total of 0 rules in 2 ms. Remains 79 /79 variables (removed 0) and now considering 79/79 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 2 ms. Remains : 79/79 places, 79/79 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 79/79 places, 79/79 transitions.
Applied a total of 0 rules in 3 ms. Remains 79 /79 variables (removed 0) and now considering 79/79 (removed 0) transitions.
[2026-05-24 13:22:02] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 13:22:02] [INFO ] Implicit Places using invariants in 72 ms returned []
[2026-05-24 13:22:02] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 13:22:02] [INFO ] State equation strengthened by 13 read => feed constraints.
[2026-05-24 13:22:02] [INFO ] Implicit Places using invariants and state equation in 194 ms returned []
Implicit Place search using SMT with State Equation took 268 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-24 13:22:02] [INFO ] Redundant transitions in 2 ms returned []
Running 78 sub problems to find dead transitions.
[2026-05-24 13:22:02] [INFO ] Invariant cache hit.
[2026-05-24 13:22:02] [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) 0/77 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 78 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/77 variables, 6/8 constraints. Problems are: Problem set: 0 solved, 78 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/77 variables, 0/8 constraints. Problems are: Problem set: 0 solved, 78 unsolved
At refinement iteration 3 (OVERLAPS) 2/79 variables, 2/10 constraints. Problems are: Problem set: 0 solved, 78 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/79 variables, 2/12 constraints. Problems are: Problem set: 0 solved, 78 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:22:03] [INFO ] Deduced a trap composed of 9 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 13:22:03] [INFO ] Deduced a trap composed of 27 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 13:22:03] [INFO ] Deduced a trap composed of 27 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 13:22:03] [INFO ] Deduced a trap composed of 37 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 13:22:03] [INFO ] Deduced a trap composed of 37 places in 44 ms of which 5 ms to minimize.
At refinement iteration 5 (INCLUDED_ONLY) 0/79 variables, 5/17 constraints. Problems are: Problem set: 0 solved, 78 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/79 variables, 0/17 constraints. Problems are: Problem set: 0 solved, 78 unsolved
Problem TDEAD35 is UNSAT
At refinement iteration 7 (OVERLAPS) 79/158 variables, 79/96 constraints. Problems are: Problem set: 1 solved, 77 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/158 variables, 13/109 constraints. Problems are: Problem set: 1 solved, 77 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/158 variables, 0/109 constraints. Problems are: Problem set: 1 solved, 77 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:22:05] [INFO ] Deduced a trap composed of 29 places in 54 ms of which 4 ms to minimize.
At refinement iteration 10 (OVERLAPS) 0/158 variables, 1/110 constraints. Problems are: Problem set: 1 solved, 77 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/158 variables, 0/110 constraints. Problems are: Problem set: 1 solved, 77 unsolved
At refinement iteration 12 (OVERLAPS) 0/158 variables, 0/110 constraints. Problems are: Problem set: 1 solved, 77 unsolved
No progress, stopping.
After SMT solving in domain Real declared 158/158 variables, and 110 constraints, problems are : Problem set: 1 solved, 77 unsolved in 3333 ms.
Refiners :[Positive P Invariants (semi-flows): 4/4 constraints, Generalized P Invariants (flows): 8/8 constraints, State Equation: 79/79 constraints, ReadFeed: 13/13 constraints, PredecessorRefiner: 78/78 constraints, Known Traps: 6/6 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 1 solved, 77 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/77 variables, 2/2 constraints. Problems are: Problem set: 1 solved, 77 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/77 variables, 6/8 constraints. Problems are: Problem set: 1 solved, 77 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/77 variables, 0/8 constraints. Problems are: Problem set: 1 solved, 77 unsolved
At refinement iteration 3 (OVERLAPS) 2/79 variables, 2/10 constraints. Problems are: Problem set: 1 solved, 77 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/79 variables, 2/12 constraints. Problems are: Problem set: 1 solved, 77 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/79 variables, 6/18 constraints. Problems are: Problem set: 1 solved, 77 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/79 variables, 0/18 constraints. Problems are: Problem set: 1 solved, 77 unsolved
At refinement iteration 7 (OVERLAPS) 79/158 variables, 79/97 constraints. Problems are: Problem set: 1 solved, 77 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/158 variables, 13/110 constraints. Problems are: Problem set: 1 solved, 77 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/158 variables, 77/187 constraints. Problems are: Problem set: 1 solved, 77 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:22:07] [INFO ] Deduced a trap composed of 19 places in 55 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:22:07] [INFO ] Deduced a trap composed of 35 places in 51 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:22:07] [INFO ] Deduced a trap composed of 35 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 13:22:07] [INFO ] Deduced a trap composed of 35 places in 54 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:22:07] [INFO ] Deduced a trap composed of 29 places in 53 ms of which 4 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/158 variables, 5/192 constraints. Problems are: Problem set: 1 solved, 77 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:22:08] [INFO ] Deduced a trap composed of 35 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 13:22:08] [INFO ] Deduced a trap composed of 29 places in 52 ms of which 6 ms to minimize.
At refinement iteration 11 (INCLUDED_ONLY) 0/158 variables, 2/194 constraints. Problems are: Problem set: 1 solved, 77 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:22:09] [INFO ] Deduced a trap composed of 11 places in 30 ms of which 2 ms to minimize.
At refinement iteration 12 (INCLUDED_ONLY) 0/158 variables, 1/195 constraints. Problems are: Problem set: 1 solved, 77 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/158 variables, 0/195 constraints. Problems are: Problem set: 1 solved, 77 unsolved
At refinement iteration 14 (OVERLAPS) 0/158 variables, 0/195 constraints. Problems are: Problem set: 1 solved, 77 unsolved
No progress, stopping.
After SMT solving in domain Int declared 158/158 variables, and 195 constraints, problems are : Problem set: 1 solved, 77 unsolved in 7651 ms.
Refiners :[Positive P Invariants (semi-flows): 4/4 constraints, Generalized P Invariants (flows): 8/8 constraints, State Equation: 79/79 constraints, ReadFeed: 13/13 constraints, PredecessorRefiner: 77/78 constraints, Known Traps: 14/14 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 11003ms problems are : Problem set: 1 solved, 77 unsolved
Search for dead transitions found 1 dead transitions in 11005ms
Found 1 dead transitions using SMT.
Drop transitions (Dead Transitions using SMT only with invariants) removed 1 transitions
Dead transitions reduction (with SMT) removed 1 transitions
Starting structural reductions in REACHABILITY mode, iteration 1 : 79/79 places, 78/79 transitions.
Applied a total of 0 rules in 6 ms. Remains 79 /79 variables (removed 0) and now considering 78/78 (removed 0) transitions.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-24 13:22:13] [INFO ] Redundant transitions in 2 ms returned []
Finished structural reductions in REACHABILITY mode , in 2 iterations and 11297 ms. Remains : 79/79 places, 78/79 transitions.
// Phase 1: matrix 78 rows 79 cols
[2026-05-24 13:22:13] [INFO ] Computed 13 invariants in 2 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[1]
RANDOM walk for 1000000 steps (144577 resets) in 611 ms. (1633 steps per ms)
BEST_FIRST walk for 1000001 steps (91479 resets) in 444 ms. (2247 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0] Max Struct:[1]
[2026-05-24 13:22:14] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:22:14] [INFO ] [Real]Absence check using 4 positive place invariants in 2 ms returned sat
[2026-05-24 13:22:14] [INFO ] [Real]Absence check using 4 positive and 9 generalized place invariants in 1 ms returned sat
[2026-05-24 13:22:14] [INFO ] [Real]Absence check using state equation in 21 ms returned sat
[2026-05-24 13:22:14] [INFO ] State equation strengthened by 12 read => feed constraints.
[2026-05-24 13:22:14] [INFO ] [Real]Added 12 Read/Feed constraints in 5 ms returned sat
[2026-05-24 13:22:14] [INFO ] Computed and/alt/rep : 75/431/75 causal constraints (skipped 2 transitions) in 5 ms.
[2026-05-24 13:22:14] [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 13:22:14] [INFO ] [Nat]Absence check using 4 positive place invariants in 2 ms returned sat
[2026-05-24 13:22:15] [INFO ] [Nat]Absence check using 4 positive and 9 generalized place invariants in 2 ms returned sat
[2026-05-24 13:22:15] [INFO ] [Nat]Absence check using state equation in 23 ms returned sat
[2026-05-24 13:22:15] [INFO ] [Nat]Added 12 Read/Feed constraints in 7 ms returned sat
[2026-05-24 13:22:15] [INFO ] Computed and/alt/rep : 75/431/75 causal constraints (skipped 2 transitions) in 6 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:22:15] [INFO ] Deduced a trap composed of 11 places in 30 ms of which 2 ms to minimize.
[2026-05-24 13:22:15] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 53 ms
[2026-05-24 13:22:15] [INFO ] Added : 71 causal constraints over 15 iterations in 329 ms. Result :sat
Minimization took 80 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0] Max Struct:[1]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0] Max Struct:[1]
Support contains 1 out of 79 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 79/79 places, 78/78 transitions.
Applied a total of 0 rules in 2 ms. Remains 79 /79 variables (removed 0) and now considering 78/78 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 2 ms. Remains : 79/79 places, 78/78 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 79/79 places, 78/78 transitions.
Applied a total of 0 rules in 1 ms. Remains 79 /79 variables (removed 0) and now considering 78/78 (removed 0) transitions.
[2026-05-24 13:22:15] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 13:22:15] [INFO ] Implicit Places using invariants in 70 ms returned [32]
Discarding 1 places :
Implicit Place search using SMT only with invariants took 70 ms to find 1 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 1 : 78/79 places, 78/78 transitions.
Applied a total of 0 rules in 1 ms. Remains 78 /78 variables (removed 0) and now considering 78/78 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 2 iterations and 74 ms. Remains : 78/79 places, 78/78 transitions.
// Phase 1: matrix 78 rows 78 cols
[2026-05-24 13:22:15] [INFO ] Computed 12 invariants in 1 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[1]
RANDOM walk for 1000000 steps (144208 resets) in 596 ms. (1675 steps per ms)
BEST_FIRST walk for 1000000 steps (91522 resets) in 435 ms. (2293 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0] Max Struct:[1]
[2026-05-24 13:22:16] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:22:16] [INFO ] [Real]Absence check using 7 positive place invariants in 2 ms returned sat
[2026-05-24 13:22:16] [INFO ] [Real]Absence check using 7 positive and 5 generalized place invariants in 2 ms returned sat
[2026-05-24 13:22:16] [INFO ] [Real]Absence check using state equation in 21 ms returned sat
[2026-05-24 13:22:16] [INFO ] State equation strengthened by 12 read => feed constraints.
[2026-05-24 13:22:16] [INFO ] [Real]Added 12 Read/Feed constraints in 7 ms returned sat
[2026-05-24 13:22:16] [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 13:22:16] [INFO ] [Nat]Absence check using 7 positive place invariants in 2 ms returned sat
[2026-05-24 13:22:16] [INFO ] [Nat]Absence check using 7 positive and 5 generalized place invariants in 1 ms returned sat
[2026-05-24 13:22:16] [INFO ] [Nat]Absence check using state equation in 21 ms returned sat
[2026-05-24 13:22:16] [INFO ] [Nat]Added 12 Read/Feed constraints in 12 ms returned sat
[2026-05-24 13:22:16] [INFO ] Computed and/alt/rep : 75/430/75 causal constraints (skipped 2 transitions) in 5 ms.
[2026-05-24 13:22:16] [INFO ] Added : 71 causal constraints over 16 iterations in 229 ms. Result :sat
Minimization took 120 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0] Max Struct:[1]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0] Max Struct:[1]
Support contains 1 out of 78 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 78/78 places, 78/78 transitions.
Applied a total of 0 rules in 2 ms. Remains 78 /78 variables (removed 0) and now considering 78/78 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 2 ms. Remains : 78/78 places, 78/78 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 78/78 places, 78/78 transitions.
Applied a total of 0 rules in 2 ms. Remains 78 /78 variables (removed 0) and now considering 78/78 (removed 0) transitions.
[2026-05-24 13:22:17] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 13:22:17] [INFO ] Implicit Places using invariants in 67 ms returned []
[2026-05-24 13:22:17] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 13:22:17] [INFO ] State equation strengthened by 12 read => feed constraints.
[2026-05-24 13:22:17] [INFO ] Implicit Places using invariants and state equation in 173 ms returned []
Implicit Place search using SMT with State Equation took 241 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-24 13:22:17] [INFO ] Redundant transitions in 3 ms returned []
Running 77 sub problems to find dead transitions.
[2026-05-24 13:22:17] [INFO ] Invariant cache hit.
[2026-05-24 13:22:17] [INFO ] State equation strengthened by 12 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/76 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 77 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/76 variables, 5/7 constraints. Problems are: Problem set: 0 solved, 77 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/76 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 77 unsolved
At refinement iteration 3 (OVERLAPS) 2/78 variables, 5/12 constraints. Problems are: Problem set: 0 solved, 77 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/78 variables, 0/12 constraints. Problems are: Problem set: 0 solved, 77 unsolved
At refinement iteration 5 (OVERLAPS) 78/156 variables, 78/90 constraints. Problems are: Problem set: 0 solved, 77 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/156 variables, 12/102 constraints. Problems are: Problem set: 0 solved, 77 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/156 variables, 0/102 constraints. Problems are: Problem set: 0 solved, 77 unsolved
At refinement iteration 8 (OVERLAPS) 0/156 variables, 0/102 constraints. Problems are: Problem set: 0 solved, 77 unsolved
No progress, stopping.
After SMT solving in domain Real declared 156/156 variables, and 102 constraints, problems are : Problem set: 0 solved, 77 unsolved in 1589 ms.
Refiners :[Positive P Invariants (semi-flows): 7/7 constraints, Generalized P Invariants (flows): 5/5 constraints, State Equation: 78/78 constraints, ReadFeed: 12/12 constraints, PredecessorRefiner: 77/77 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 77 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/76 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 77 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/76 variables, 5/7 constraints. Problems are: Problem set: 0 solved, 77 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/76 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 77 unsolved
At refinement iteration 3 (OVERLAPS) 2/78 variables, 5/12 constraints. Problems are: Problem set: 0 solved, 77 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/78 variables, 0/12 constraints. Problems are: Problem set: 0 solved, 77 unsolved
At refinement iteration 5 (OVERLAPS) 78/156 variables, 78/90 constraints. Problems are: Problem set: 0 solved, 77 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/156 variables, 12/102 constraints. Problems are: Problem set: 0 solved, 77 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/156 variables, 77/179 constraints. Problems are: Problem set: 0 solved, 77 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/156 variables, 0/179 constraints. Problems are: Problem set: 0 solved, 77 unsolved
At refinement iteration 9 (OVERLAPS) 0/156 variables, 0/179 constraints. Problems are: Problem set: 0 solved, 77 unsolved
No progress, stopping.
After SMT solving in domain Int declared 156/156 variables, and 179 constraints, problems are : Problem set: 0 solved, 77 unsolved in 3851 ms.
Refiners :[Positive P Invariants (semi-flows): 7/7 constraints, Generalized P Invariants (flows): 5/5 constraints, State Equation: 78/78 constraints, ReadFeed: 12/12 constraints, PredecessorRefiner: 77/77 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 5454ms problems are : Problem set: 0 solved, 77 unsolved
Search for dead transitions found 0 dead transitions in 5456ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 5708 ms. Remains : 78/78 places, 78/78 transitions.
[2026-05-24 13:22:22] [INFO ] Flatten gal took : 6 ms
[2026-05-24 13:22:22] [INFO ] Flatten gal took : 6 ms
[2026-05-24 13:22:22] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality2132566650686180573.gal : 2 ms
[2026-05-24 13:22:22] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality8756163850823201671.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/ReachabilityCardinality2132566650686180573.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality8756163850823201671.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...328
Loading property file /tmp/ReachabilityCardinality8756163850823201671.prop.
SDD proceeding with computation,2 properties remain. new max is 4
SDD size :1 after 2
SDD proceeding with computation,2 properties remain. new max is 8
SDD size :2 after 6
SDD proceeding with computation,2 properties remain. new max is 16
SDD size :6 after 8
SDD proceeding with computation,2 properties remain. new max is 32
SDD size :8 after 14
SDD proceeding with computation,2 properties remain. new max is 64
SDD size :14 after 27
SDD proceeding with computation,2 properties remain. new max is 128
SDD size :27 after 42
SDD proceeding with computation,2 properties remain. new max is 256
SDD size :42 after 91
RANDOM walk for 40000 steps (5775 resets) in 123 ms. (322 steps per ms) remains 2/2 properties
SDD proceeding with computation,2 properties remain. new max is 512
SDD size :91 after 275
SDD proceeding with computation,2 properties remain. new max is 1024
SDD size :275 after 816
BEST_FIRST walk for 40001 steps (3645 resets) in 56 ms. (701 steps per ms) remains 2/2 properties
SDD proceeding with computation,2 properties remain. new max is 2048
SDD size :816 after 6221
BEST_FIRST walk for 40002 steps (3629 resets) in 59 ms. (666 steps per ms) remains 2/2 properties
SDD proceeding with computation,2 properties remain. new max is 4096
SDD size :6221 after 45817
SDD proceeding with computation,2 properties remain. new max is 8192
SDD size :45817 after 223968
SDD proceeding with computation,2 properties remain. new max is 16384
SDD size :223968 after 597273
SDD proceeding with computation,2 properties remain. new max is 32768
SDD size :748076 after 1.1302e+07
SDD proceeding with computation,2 properties remain. new max is 65536
SDD size :1.1302e+07 after 4.03243e+08
Interrupted probabilistic random walk after 541289 steps, run timeout after 3001 ms. (steps per millisecond=180 ) properties seen :0 out of 2
Probabilistic random walk after 541289 steps, saw 270798 distinct states, run finished after 3001 ms. (steps per millisecond=180 ) properties seen :0
[2026-05-24 13:22:25] [INFO ] Invariant cache hit.
[2026-05-24 13:22:25] [INFO ] State equation strengthened by 12 read => feed constraints.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 1 (OVERLAPS) 56/57 variables, 5/5 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/57 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 3 (OVERLAPS) 16/73 variables, 5/10 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 13:22:26] [INFO ] Deduced a trap composed of 4 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 13:22:26] [INFO ] Deduced a trap composed of 7 places in 53 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:22:26] [INFO ] Deduced a trap composed of 7 places in 50 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:22:26] [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 13:22:26] [INFO ] Deduced a trap composed of 10 places in 36 ms of which 4 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/73 variables, 5/15 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/73 variables, 0/15 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 6 (OVERLAPS) 78/151 variables, 73/88 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/151 variables, 12/100 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/151 variables, 0/100 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 9 (OVERLAPS) 5/156 variables, 5/105 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/156 variables, 2/107 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/156 variables, 0/107 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 12 (OVERLAPS) 0/156 variables, 0/107 constraints. Problems are: Problem set: 0 solved, 2 unsolved
No progress, stopping.
After SMT solving in domain Real declared 156/156 variables, and 107 constraints, problems are : Problem set: 0 solved, 2 unsolved in 390 ms.
Refiners :[Positive P Invariants (semi-flows): 7/7 constraints, Generalized P Invariants (flows): 5/5 constraints, State Equation: 78/78 constraints, ReadFeed: 12/12 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 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 1 (OVERLAPS) 56/57 variables, 5/5 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/57 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 3 (OVERLAPS) 16/73 variables, 5/10 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/73 variables, 5/15 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 13:22:26] [INFO ] Deduced a trap composed of 9 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 13:22:26] [INFO ] Deduced a trap composed of 3 places in 51 ms of which 3 ms to minimize.
At refinement iteration 5 (INCLUDED_ONLY) 0/73 variables, 2/17 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/73 variables, 0/17 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 7 (OVERLAPS) 78/151 variables, 73/90 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/151 variables, 12/102 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/151 variables, 2/104 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/151 variables, 0/104 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 11 (OVERLAPS) 5/156 variables, 5/109 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/156 variables, 2/111 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/156 variables, 0/111 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 14 (OVERLAPS) 0/156 variables, 0/111 constraints. Problems are: Problem set: 0 solved, 2 unsolved
No progress, stopping.
After SMT solving in domain Int declared 156/156 variables, and 111 constraints, problems are : Problem set: 0 solved, 2 unsolved in 238 ms.
Refiners :[Positive P Invariants (semi-flows): 7/7 constraints, Generalized P Invariants (flows): 5/5 constraints, State Equation: 78/78 constraints, ReadFeed: 12/12 constraints, PredecessorRefiner: 2/2 constraints, Known Traps: 7/7 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 630ms problems are : Problem set: 0 solved, 2 unsolved
Fused 2 Parikh solutions to 1 different solutions.
Parikh walk visited 0 properties in 199 ms.
Support contains 1 out of 78 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 78/78 places, 78/78 transitions.
Applied a total of 0 rules in 2 ms. Remains 78 /78 variables (removed 0) and now considering 78/78 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 2 ms. Remains : 78/78 places, 78/78 transitions.
RANDOM walk for 40000 steps (5759 resets) in 68 ms. (579 steps per ms) remains 2/2 properties
BEST_FIRST walk for 40003 steps (3563 resets) in 52 ms. (754 steps per ms) remains 2/2 properties
BEST_FIRST walk for 40001 steps (3656 resets) in 74 ms. (533 steps per ms) remains 2/2 properties
SDD proceeding with computation,2 properties remain. new max is 131072
SDD size :4.03243e+08 after 2.34149e+09
Interrupted probabilistic random walk after 539042 steps, run timeout after 3001 ms. (steps per millisecond=179 ) properties seen :0 out of 2
Probabilistic random walk after 539042 steps, saw 269680 distinct states, run finished after 3001 ms. (steps per millisecond=179 ) properties seen :0
[2026-05-24 13:22:29] [INFO ] Invariant cache hit.
[2026-05-24 13:22:29] [INFO ] State equation strengthened by 12 read => feed constraints.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 1 (OVERLAPS) 56/57 variables, 5/5 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/57 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 3 (OVERLAPS) 16/73 variables, 5/10 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 13:22:29] [INFO ] Deduced a trap composed of 4 places in 55 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:22:29] [INFO ] Deduced a trap composed of 7 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 13:22:30] [INFO ] Deduced a trap composed of 7 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 13:22:30] [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 13:22:30] [INFO ] Deduced a trap composed of 10 places in 38 ms of which 3 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/73 variables, 5/15 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/73 variables, 0/15 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 6 (OVERLAPS) 78/151 variables, 73/88 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/151 variables, 12/100 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/151 variables, 0/100 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 9 (OVERLAPS) 5/156 variables, 5/105 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/156 variables, 2/107 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/156 variables, 0/107 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 12 (OVERLAPS) 0/156 variables, 0/107 constraints. Problems are: Problem set: 0 solved, 2 unsolved
No progress, stopping.
After SMT solving in domain Real declared 156/156 variables, and 107 constraints, problems are : Problem set: 0 solved, 2 unsolved in 390 ms.
Refiners :[Positive P Invariants (semi-flows): 7/7 constraints, Generalized P Invariants (flows): 5/5 constraints, State Equation: 78/78 constraints, ReadFeed: 12/12 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) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 1 (OVERLAPS) 56/57 variables, 5/5 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/57 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 3 (OVERLAPS) 16/73 variables, 5/10 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/73 variables, 5/15 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 13:22:30] [INFO ] Deduced a trap composed of 9 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 13:22:30] [INFO ] Deduced a trap composed of 3 places in 43 ms of which 3 ms to minimize.
At refinement iteration 5 (INCLUDED_ONLY) 0/73 variables, 2/17 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/73 variables, 0/17 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 7 (OVERLAPS) 78/151 variables, 73/90 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/151 variables, 12/102 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/151 variables, 2/104 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/151 variables, 0/104 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 11 (OVERLAPS) 5/156 variables, 5/109 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/156 variables, 2/111 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/156 variables, 0/111 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 14 (OVERLAPS) 0/156 variables, 0/111 constraints. Problems are: Problem set: 0 solved, 2 unsolved
No progress, stopping.
After SMT solving in domain Int declared 156/156 variables, and 111 constraints, problems are : Problem set: 0 solved, 2 unsolved in 233 ms.
Refiners :[Positive P Invariants (semi-flows): 7/7 constraints, Generalized P Invariants (flows): 5/5 constraints, State Equation: 78/78 constraints, ReadFeed: 12/12 constraints, PredecessorRefiner: 2/2 constraints, Known Traps: 7/7 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 629ms problems are : Problem set: 0 solved, 2 unsolved
Fused 2 Parikh solutions to 1 different solutions.
Parikh walk visited 0 properties in 182 ms.
Support contains 1 out of 78 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 78/78 places, 78/78 transitions.
Applied a total of 0 rules in 1 ms. Remains 78 /78 variables (removed 0) and now considering 78/78 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 2 ms. Remains : 78/78 places, 78/78 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 78/78 places, 78/78 transitions.
Applied a total of 0 rules in 2 ms. Remains 78 /78 variables (removed 0) and now considering 78/78 (removed 0) transitions.
[2026-05-24 13:22:30] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 13:22:30] [INFO ] Implicit Places using invariants in 64 ms returned []
[2026-05-24 13:22:30] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 13:22:30] [INFO ] State equation strengthened by 12 read => feed constraints.
[2026-05-24 13:22:30] [INFO ] Implicit Places using invariants and state equation in 180 ms returned []
Implicit Place search using SMT with State Equation took 245 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-24 13:22:30] [INFO ] Redundant transitions in 2 ms returned []
Running 77 sub problems to find dead transitions.
[2026-05-24 13:22:30] [INFO ] Invariant cache hit.
[2026-05-24 13:22:30] [INFO ] State equation strengthened by 12 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/76 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 77 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/76 variables, 5/7 constraints. Problems are: Problem set: 0 solved, 77 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/76 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 77 unsolved
At refinement iteration 3 (OVERLAPS) 2/78 variables, 5/12 constraints. Problems are: Problem set: 0 solved, 77 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/78 variables, 0/12 constraints. Problems are: Problem set: 0 solved, 77 unsolved
At refinement iteration 5 (OVERLAPS) 78/156 variables, 78/90 constraints. Problems are: Problem set: 0 solved, 77 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/156 variables, 12/102 constraints. Problems are: Problem set: 0 solved, 77 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/156 variables, 0/102 constraints. Problems are: Problem set: 0 solved, 77 unsolved
At refinement iteration 8 (OVERLAPS) 0/156 variables, 0/102 constraints. Problems are: Problem set: 0 solved, 77 unsolved
No progress, stopping.
After SMT solving in domain Real declared 156/156 variables, and 102 constraints, problems are : Problem set: 0 solved, 77 unsolved in 1678 ms.
Refiners :[Positive P Invariants (semi-flows): 7/7 constraints, Generalized P Invariants (flows): 5/5 constraints, State Equation: 78/78 constraints, ReadFeed: 12/12 constraints, PredecessorRefiner: 77/77 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 77 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/76 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 77 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/76 variables, 5/7 constraints. Problems are: Problem set: 0 solved, 77 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/76 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 77 unsolved
At refinement iteration 3 (OVERLAPS) 2/78 variables, 5/12 constraints. Problems are: Problem set: 0 solved, 77 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/78 variables, 0/12 constraints. Problems are: Problem set: 0 solved, 77 unsolved
At refinement iteration 5 (OVERLAPS) 78/156 variables, 78/90 constraints. Problems are: Problem set: 0 solved, 77 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/156 variables, 12/102 constraints. Problems are: Problem set: 0 solved, 77 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/156 variables, 77/179 constraints. Problems are: Problem set: 0 solved, 77 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/156 variables, 0/179 constraints. Problems are: Problem set: 0 solved, 77 unsolved
At refinement iteration 9 (OVERLAPS) 0/156 variables, 0/179 constraints. Problems are: Problem set: 0 solved, 77 unsolved
No progress, stopping.
After SMT solving in domain Int declared 156/156 variables, and 179 constraints, problems are : Problem set: 0 solved, 77 unsolved in 4403 ms.
Refiners :[Positive P Invariants (semi-flows): 7/7 constraints, Generalized P Invariants (flows): 5/5 constraints, State Equation: 78/78 constraints, ReadFeed: 12/12 constraints, PredecessorRefiner: 77/77 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 6103ms problems are : Problem set: 0 solved, 77 unsolved
Search for dead transitions found 0 dead transitions in 6106ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 6359 ms. Remains : 78/78 places, 78/78 transitions.
Attempting over-approximation, by ignoring read arcs.
Performed 6 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 0 with 6 Pre rules applied. Total rules applied 0 place count 78 transition count 72
Deduced a syphon composed of 6 places in 0 ms
Reduce places removed 6 places and 0 transitions.
Iterating global reduction 0 with 12 rules applied. Total rules applied 12 place count 72 transition count 72
Discarding 3 places :
Symmetric choice reduction at 0 with 3 rule applications. Total rules 15 place count 69 transition count 69
Iterating global reduction 0 with 3 rules applied. Total rules applied 18 place count 69 transition count 69
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 0 with 2 rules applied. Total rules applied 20 place count 68 transition count 68
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 0 with 1 rules applied. Total rules applied 21 place count 68 transition count 67
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 22 place count 67 transition count 67
Applied a total of 22 rules in 10 ms. Remains 67 /78 variables (removed 11) and now considering 67/78 (removed 11) transitions.
Running SMT prover for 2 properties.
// Phase 1: matrix 67 rows 67 cols
[2026-05-24 13:22:37] [INFO ] Computed 12 invariants in 1 ms
Starting Z3 with timeout 450.0 s and query timeout 45000.0 ms
[2026-05-24 13:22:37] [INFO ] [Real]Absence check using 7 positive place invariants in 2 ms returned sat
[2026-05-24 13:22:37] [INFO ] [Real]Absence check using 7 positive and 5 generalized place invariants in 1 ms returned sat
[2026-05-24 13:22:37] [INFO ] After 43ms SMT Verify possible using state equation in real domain returned unsat :0 sat :2
[2026-05-24 13:22:37] [INFO ] State equation strengthened by 1 read => feed constraints.
[2026-05-24 13:22:37] [INFO ] After 7ms SMT Verify possible using 1 Read/Feed constraints in real domain returned unsat :0 sat :0 real:2
[2026-05-24 13:22:37] [INFO ] After 92ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:2
Starting Z3 with timeout 450.0 s and query timeout 45000.0 ms
[2026-05-24 13:22:37] [INFO ] [Nat]Absence check using 7 positive place invariants in 2 ms returned sat
[2026-05-24 13:22:37] [INFO ] [Nat]Absence check using 7 positive and 5 generalized place invariants in 1 ms returned sat
[2026-05-24 13:22:37] [INFO ] After 52ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :2
[2026-05-24 13:22:37] [INFO ] After 5ms SMT Verify possible using 1 Read/Feed constraints in natural domain returned unsat :0 sat :2
TRAPS : Iteration 0
[2026-05-24 13:22:37] [INFO ] After 14ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :2
[2026-05-24 13:22:37] [INFO ] After 123ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :2
[2026-05-24 13:22:37] [INFO ] Flatten gal took : 6 ms
[2026-05-24 13:22:37] [INFO ] Flatten gal took : 5 ms
[2026-05-24 13:22:37] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality4011710523058031467.gal : 1 ms
[2026-05-24 13:22:37] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality8783229811980178706.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/ReachabilityCardinality4011710523058031467.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality8783229811980178706.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...328
Loading property file /tmp/ReachabilityCardinality8783229811980178706.prop.
SDD proceeding with computation,2 properties remain. new max is 4
SDD size :1 after 3
SDD proceeding with computation,2 properties remain. new max is 8
SDD size :3 after 13
SDD proceeding with computation,2 properties remain. new max is 16
SDD size :13 after 31
SDD proceeding with computation,2 properties remain. new max is 32
SDD size :31 after 51
SDD proceeding with computation,2 properties remain. new max is 64
SDD size :51 after 63
SDD proceeding with computation,2 properties remain. new max is 128
SDD size :63 after 159
SDD proceeding with computation,2 properties remain. new max is 256
SDD size :159 after 296
SDD proceeding with computation,2 properties remain. new max is 512
SDD size :296 after 642
SDD proceeding with computation,2 properties remain. new max is 1024
SDD size :642 after 1526
SDD proceeding with computation,2 properties remain. new max is 2048
SDD size :1526 after 3424
SDD proceeding with computation,2 properties remain. new max is 4096
SDD size :3424 after 7205
SDD proceeding with computation,2 properties remain. new max is 8192
SDD size :7205 after 14688
SDD proceeding with computation,2 properties remain. new max is 16384
SDD size :14688 after 29647
SDD proceeding with computation,2 properties remain. new max is 32768
SDD size :29647 after 59621
SDD proceeding with computation,2 properties remain. new max is 65536
SDD size :59621 after 119462
Detected timeout of ITS tools.
[2026-05-24 13:22:52] [INFO ] Flatten gal took : 8 ms
[2026-05-24 13:22:52] [INFO ] Applying decomposition
[2026-05-24 13:22:52] [INFO ] Flatten gal took : 5 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/graph1976314435516826095.txt' '-o' '/tmp/graph1976314435516826095.bin' '-w' '/tmp/graph1976314435516826095.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/louvain-linux64' '/tmp/graph1976314435516826095.bin' '-l' '-1' '-v' '-w' '/tmp/graph1976314435516826095.weights' '-q' '0' '-e' '0.001'
[2026-05-24 13:22:52] [INFO ] Decomposing Gal with order
[2026-05-24 13:22:52] [INFO ] Rewriting arrays to variables to allow decomposition.
[2026-05-24 13:22:52] [INFO ] Removed a total of 35 redundant transitions.
[2026-05-24 13:22:52] [INFO ] Flatten gal took : 10 ms
[2026-05-24 13:22:52] [INFO ] Fuse similar labels procedure discarded/fused a total of 8 labels/synchronizations in 2 ms.
[2026-05-24 13:22:52] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality9698478537828342862.gal : 9 ms
[2026-05-24 13:22:52] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality3911478875879493475.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/ReachabilityCardinality9698478537828342862.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality3911478875879493475.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 ...307
Loading property file /tmp/ReachabilityCardinality3911478875879493475.prop.
SDD proceeding with computation,2 properties remain. new max is 4
SDD size :478 after 481
SDD proceeding with computation,2 properties remain. new max is 8
SDD size :1027 after 1063
SDD proceeding with computation,2 properties remain. new max is 16
SDD size :45190 after 45375
SDD proceeding with computation,2 properties remain. new max is 262144
SDD size :2.34149e+09 after 6.99369e+09
Detected timeout of ITS tools.
Over-approximation ignoring read arcs solved 0 properties in 30406 ms.
ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
[2026-05-24 13:23:07] [INFO ] Flatten gal took : 5 ms
[2026-05-24 13:23:07] [INFO ] Applying decomposition
[2026-05-24 13:23:07] [INFO ] Flatten gal took : 4 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/graph8290998087123894877.txt' '-o' '/tmp/graph8290998087123894877.bin' '-w' '/tmp/graph8290998087123894877.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/louvain-linux64' '/tmp/graph8290998087123894877.bin' '-l' '-1' '-v' '-w' '/tmp/graph8290998087123894877.weights' '-q' '0' '-e' '0.001'
[2026-05-24 13:23:07] [INFO ] Decomposing Gal with order
[2026-05-24 13:23:07] [INFO ] Rewriting arrays to variables to allow decomposition.
[2026-05-24 13:23:07] [INFO ] Removed a total of 32 redundant transitions.
[2026-05-24 13:23:07] [INFO ] Flatten gal took : 9 ms
[2026-05-24 13:23:07] [INFO ] Fuse similar labels procedure discarded/fused a total of 40 labels/synchronizations in 3 ms.
[2026-05-24 13:23:07] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality8398539214262274104.gal : 1 ms
[2026-05-24 13:23:07] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality9135892297650733076.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/ReachabilityCardinality8398539214262274104.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality9135892297650733076.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 ...307
Loading property file /tmp/ReachabilityCardinality9135892297650733076.prop.
SDD proceeding with computation,2 properties remain. new max is 4
SDD size :1 after 7
SDD proceeding with computation,2 properties remain. new max is 8
SDD size :7 after 17
SDD proceeding with computation,2 properties remain. new max is 16
SDD size :17 after 42
SDD proceeding with computation,2 properties remain. new max is 32
SDD size :42 after 92
SDD proceeding with computation,2 properties remain. new max is 64
SDD size :1237 after 1238
SDD proceeding with computation,2 properties remain. new max is 128
SDD size :6610 after 8924
SDD proceeding with computation,2 properties remain. new max is 256
SDD size :45042 after 45062
SDD proceeding with computation,2 properties remain. new max is 512
SDD size :55678 after 59143
SDD proceeding with computation,2 properties remain. new max is 1024
SDD size :94456 after 96770
SDD proceeding with computation,2 properties remain. new max is 2048
SDD size :147158 after 151403
SDD proceeding with computation,2 properties remain. new max is 4096
SDD size :224258 after 225571
SDD proceeding with computation,2 properties remain. new max is 8192
SDD size :330288 after 335326
SDD proceeding with computation,2 properties remain. new max is 16384
SDD size :497913 after 497985
SDD proceeding with computation,2 properties remain. new max is 32768
SDD size :713658 after 718696
Detected timeout of ITS tools.
Current structural bounds on expressions (After reachability solving 0 queries.) : Max Seen:[0] Max Struct:[1]
Ending property specific reduction for DoubleExponent-PT-004-UpperBounds-12 in 119154 ms.
[2026-05-24 13:23:57] [INFO ] Flatten gal took : 5 ms
[2026-05-24 13:23:57] [INFO ] Applying decomposition
[2026-05-24 13:23:57] [INFO ] Flatten gal took : 5 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/graph6776583072511279163.txt' '-o' '/tmp/graph6776583072511279163.bin' '-w' '/tmp/graph6776583072511279163.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/louvain-linux64' '/tmp/graph6776583072511279163.bin' '-l' '-1' '-v' '-w' '/tmp/graph6776583072511279163.weights' '-q' '0' '-e' '0.001'
[2026-05-24 13:23:57] [INFO ] Decomposing Gal with order
[2026-05-24 13:23:57] [INFO ] Rewriting arrays to variables to allow decomposition.
[2026-05-24 13:23:57] [INFO ] Removed a total of 41 redundant transitions.
[2026-05-24 13:23:57] [INFO ] Flatten gal took : 16 ms
[2026-05-24 13:23:57] [INFO ] Fuse similar labels procedure discarded/fused a total of 36 labels/synchronizations in 8 ms.
[2026-05-24 13:23:57] [INFO ] Time to serialize gal into /tmp/UpperBounds6719646187258884617.gal : 2 ms
[2026-05-24 13:23:57] [INFO ] Time to serialize properties into /tmp/UpperBounds15030664798368171068.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/UpperBounds6719646187258884617.gal' '-t' 'CGAL' '-reachable-file' '/tmp/UpperBounds15030664798368171068.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/UpperBounds15030664798368171068.prop.
Detected timeout of ITS tools.
[2026-05-24 13:45:18] [INFO ] Flatten gal took : 5 ms
[2026-05-24 13:45:18] [INFO ] Time to serialize gal into /tmp/UpperBounds4096126055343267361.gal : 9 ms
[2026-05-24 13:45:18] [INFO ] Time to serialize properties into /tmp/UpperBounds4309147035333222547.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/UpperBounds4096126055343267361.gal' '-t' 'CGAL' '-reachable-file' '/tmp/UpperBounds4309147035333222547.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...304
Loading property file /tmp/UpperBounds4309147035333222547.prop.
Detected timeout of ITS tools.
[2026-05-24 14:06:40] [INFO ] Flatten gal took : 9 ms
[2026-05-24 14:06:40] [INFO ] Input system was already deterministic with 87 transitions.
[2026-05-24 14:06:40] [INFO ] Transformed 87 places.
[2026-05-24 14:06:40] [INFO ] Transformed 87 transitions.
Running greatSPN : cd /home/mcc/execution;'/home/mcc/BenchKit/bin//../itstools/bin//..//greatspn//bin/pinvar' '/home/mcc/execution/gspn'
Run of greatSPN captured in /home/mcc/execution/outPut.txt
Running greatSPN : cd /home/mcc/execution;'/home/mcc/BenchKit/bin//../itstools/bin//..//greatspn//bin/RGMEDD2' '/home/mcc/execution/gspn' '-META' '-varord-only'
Run of greatSPN captured in /home/mcc/execution/outPut.txt
Using order generated by GreatSPN with heuristic : META
[2026-05-24 14:06:40] [INFO ] Time to serialize gal into /tmp/UpperBounds6550101881925896160.gal : 1 ms
[2026-05-24 14:06:40] [INFO ] Time to serialize properties into /tmp/UpperBounds13726710240326479679.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/UpperBounds6550101881925896160.gal' '-t' 'CGAL' '-reachable-file' '/tmp/UpperBounds13726710240326479679.prop' '--nowitness' '--load-order' '/home/mcc/execution/model.ord' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...350
Successfully loaded order from file /home/mcc/execution/model.ord
Loading property file /tmp/UpperBounds13726710240326479679.prop.

BK_TIME_CONFINEMENT_REACHED

--------------------
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-004"
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-004, 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-177955700900110"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/DoubleExponent-PT-004.tgz
mv DoubleExponent-PT-004 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 ;