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-177955700900108.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2026-input.qcow2 backing_fmt=qcow2 cluster_size=65536 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
.................................................................................................
=====================================================================
Generated by BenchKit 2-5973
Executing tool gold2025
Input is DoubleExponent-PT-002, examination is UpperBounds
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r111-tall-177955700900108
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 556K
-rw-r--r-- 1 mcc users 6.8K Mar 6 16:56 CTLCardinality.txt
-rw-r--r-- 1 mcc users 71K Mar 6 16:56 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.5K Mar 6 16:56 CTLFireability.txt
-rw-r--r-- 1 mcc users 51K Mar 6 16:56 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Mar 3 18:30 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 3.7K Mar 15 09:35 LTLCardinality.txt
-rw-r--r-- 1 mcc users 27K Mar 15 09:35 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.3K Mar 15 09:36 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K Mar 15 09:36 LTLFireability.xml
-rw-r--r-- 1 mcc users 15K Mar 6 16:56 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 168K Mar 6 16:56 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 11K Mar 6 16:56 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 100K Mar 6 16:56 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K Mar 15 09:36 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K Mar 15 09:36 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 equiv_col
-rw-r--r-- 1 mcc users 4 Mar 3 18:30 instance
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 iscolored
-rw-r--r-- 1 mcc users 33K 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-002-UpperBounds-00
FORMULA_NAME DoubleExponent-PT-002-UpperBounds-01
FORMULA_NAME DoubleExponent-PT-002-UpperBounds-02
FORMULA_NAME DoubleExponent-PT-002-UpperBounds-03
FORMULA_NAME DoubleExponent-PT-002-UpperBounds-04
FORMULA_NAME DoubleExponent-PT-002-UpperBounds-05
FORMULA_NAME DoubleExponent-PT-002-UpperBounds-06
FORMULA_NAME DoubleExponent-PT-002-UpperBounds-07
FORMULA_NAME DoubleExponent-PT-002-UpperBounds-08
FORMULA_NAME DoubleExponent-PT-002-UpperBounds-09
FORMULA_NAME DoubleExponent-PT-002-UpperBounds-10
FORMULA_NAME DoubleExponent-PT-002-UpperBounds-11
FORMULA_NAME DoubleExponent-PT-002-UpperBounds-12
FORMULA_NAME DoubleExponent-PT-002-UpperBounds-13
FORMULA_NAME DoubleExponent-PT-002-UpperBounds-14
FORMULA_NAME DoubleExponent-PT-002-UpperBounds-15

=== Now, execution of the tool begins

BK_START 1779628746266

Invoking MCC driver with
GOLD_TOOL=
BK_EXAMINATION=UpperBounds
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=DoubleExponent-PT-002
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
UpperBounds PT
Running Version 202505121319
[2026-05-24 13:19:07] [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 13:19:07] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-24 13:19:07] [INFO ] Load time of PNML (sax parser for PT used): 50 ms
[2026-05-24 13:19:07] [INFO ] Transformed 110 places.
[2026-05-24 13:19:07] [INFO ] Transformed 98 transitions.
[2026-05-24 13:19:07] [INFO ] Parsed PT model containing 110 places and 98 transitions and 276 arcs in 138 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 98 rows 110 cols
[2026-05-24 13:19:07] [INFO ] Computed 14 invariants in 16 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:[12, +inf, +inf, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
RANDOM walk for 10000 steps (327 resets) in 31 ms. (312 steps per ms)
FORMULA DoubleExponent-PT-002-UpperBounds-15 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA DoubleExponent-PT-002-UpperBounds-14 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA DoubleExponent-PT-002-UpperBounds-13 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA DoubleExponent-PT-002-UpperBounds-12 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA DoubleExponent-PT-002-UpperBounds-11 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA DoubleExponent-PT-002-UpperBounds-09 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA DoubleExponent-PT-002-UpperBounds-07 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA DoubleExponent-PT-002-UpperBounds-04 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 80002 steps (2262 resets) in 125 ms. (634 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0, 0, 4, 0, 0, 0, 0, 0] Max Struct:[12, +inf, +inf, 1, 1, 1, 1, 1]
[2026-05-24 13:19:07] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:19:08] [INFO ] [Real]Absence check using 5 positive place invariants in 8 ms returned sat
[2026-05-24 13:19:08] [INFO ] [Real]Absence check using 5 positive and 9 generalized place invariants in 5 ms returned sat
[2026-05-24 13:19:08] [INFO ] [Real]Absence check using state equation in 52 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:08] [INFO ] Deduced a trap composed of 38 places in 73 ms of which 13 ms to minimize.
[2026-05-24 13:19:08] [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 13:19:08] [INFO ] [Nat]Absence check using 5 positive place invariants in 4 ms returned sat
[2026-05-24 13:19:08] [INFO ] [Nat]Absence check using 5 positive and 9 generalized place invariants in 3 ms returned sat
[2026-05-24 13:19:08] [INFO ] [Nat]Absence check using state equation in 40 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:08] [INFO ] Deduced a trap composed of 38 places in 60 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:08] [INFO ] Deduced a trap composed of 46 places in 52 ms of which 9 ms to minimize.
[2026-05-24 13:19:08] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 142 ms
[2026-05-24 13:19:08] [INFO ] Computed and/alt/rep : 97/187/97 causal constraints (skipped 0 transitions) in 6 ms.
[2026-05-24 13:19:08] [INFO ] Added : 95 causal constraints over 21 iterations in 310 ms. Result :sat
Minimization took 76 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:19:08] [INFO ] [Real]Absence check using 5 positive place invariants in 3 ms returned sat
[2026-05-24 13:19:08] [INFO ] [Real]Absence check using 5 positive and 9 generalized place invariants in 3 ms returned sat
[2026-05-24 13:19:09] [INFO ] [Real]Absence check using state equation in 41 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:09] [INFO ] Deduced a trap composed of 18 places in 37 ms of which 3 ms to minimize.
[2026-05-24 13:19:09] [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 13:19:09] [INFO ] [Nat]Absence check using 5 positive place invariants in 3 ms returned sat
[2026-05-24 13:19:09] [INFO ] [Nat]Absence check using 5 positive and 9 generalized place invariants in 2 ms returned sat
[2026-05-24 13:19:09] [INFO ] [Nat]Absence check using state equation in 31 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:09] [INFO ] Deduced a trap composed of 18 places in 31 ms of which 3 ms to minimize.
[2026-05-24 13:19:09] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 49 ms
[2026-05-24 13:19:09] [INFO ] Computed and/alt/rep : 97/187/97 causal constraints (skipped 0 transitions) in 5 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:09] [INFO ] Deduced a trap composed of 36 places in 65 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:09] [INFO ] Deduced a trap composed of 44 places in 60 ms of which 9 ms to minimize.
[2026-05-24 13:19:09] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 168 ms
[2026-05-24 13:19:09] [INFO ] Added : 77 causal constraints over 16 iterations in 387 ms. Result :sat
Minimization took 69 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:19:09] [INFO ] [Real]Absence check using 5 positive place invariants in 3 ms returned sat
[2026-05-24 13:19:09] [INFO ] [Real]Absence check using 5 positive and 9 generalized place invariants in 2 ms returned sat
[2026-05-24 13:19:09] [INFO ] [Real]Absence check using state equation in 34 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:09] [INFO ] Deduced a trap composed of 16 places in 54 ms of which 7 ms to minimize.
[2026-05-24 13:19:09] [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 13:19:09] [INFO ] [Nat]Absence check using 5 positive place invariants in 3 ms returned sat
[2026-05-24 13:19:09] [INFO ] [Nat]Absence check using 5 positive and 9 generalized place invariants in 3 ms returned sat
[2026-05-24 13:19:09] [INFO ] [Nat]Absence check using state equation in 39 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:09] [INFO ] Deduced a trap composed of 16 places in 54 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:09] [INFO ] Deduced a trap composed of 18 places in 47 ms of which 7 ms to minimize.
[2026-05-24 13:19:10] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 125 ms
[2026-05-24 13:19:10] [INFO ] Computed and/alt/rep : 97/187/97 causal constraints (skipped 0 transitions) in 4 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:10] [INFO ] Deduced a trap composed of 36 places in 53 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:10] [INFO ] Deduced a trap composed of 44 places in 47 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:10] [INFO ] Deduced a trap composed of 42 places in 48 ms of which 5 ms to minimize.
[2026-05-24 13:19:10] [INFO ] Trap strengthening (SAT) tested/added 4/3 trap constraints in 218 ms
[2026-05-24 13:19:10] [INFO ] Added : 86 causal constraints over 18 iterations in 445 ms. Result :sat
Minimization took 76 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:19:10] [INFO ] [Real]Absence check using 5 positive place invariants in 3 ms returned sat
[2026-05-24 13:19:10] [INFO ] [Real]Absence check using 5 positive and 9 generalized place invariants in 2 ms returned sat
[2026-05-24 13:19:10] [INFO ] [Real]Absence check using state equation in 28 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:10] [INFO ] Deduced a trap composed of 38 places in 43 ms of which 7 ms to minimize.
[2026-05-24 13:19:10] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:19:10] [INFO ] [Nat]Absence check using 5 positive place invariants in 3 ms returned sat
[2026-05-24 13:19:10] [INFO ] [Nat]Absence check using 5 positive and 9 generalized place invariants in 2 ms returned sat
[2026-05-24 13:19:10] [INFO ] [Nat]Absence check using state equation in 33 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:10] [INFO ] Deduced a trap composed of 38 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 13:19:10] [INFO ] Deduced a trap composed of 48 places in 45 ms of which 4 ms to minimize.
[2026-05-24 13:19:10] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 119 ms
[2026-05-24 13:19:10] [INFO ] Computed and/alt/rep : 97/187/97 causal constraints (skipped 0 transitions) in 6 ms.
[2026-05-24 13:19:11] [INFO ] Added : 95 causal constraints over 20 iterations in 188 ms. Result :sat
Minimization took 73 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:19:11] [INFO ] [Real]Absence check using 5 positive place invariants in 3 ms returned sat
[2026-05-24 13:19:11] [INFO ] [Real]Absence check using 5 positive and 9 generalized place invariants in 2 ms returned sat
[2026-05-24 13:19:11] [INFO ] [Real]Absence check using state equation in 29 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:11] [INFO ] Deduced a trap composed of 18 places in 47 ms of which 5 ms to minimize.
[2026-05-24 13:19:11] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:19:11] [INFO ] [Nat]Absence check using 5 positive place invariants in 3 ms returned sat
[2026-05-24 13:19:11] [INFO ] [Nat]Absence check using 5 positive and 9 generalized place invariants in 2 ms returned sat
[2026-05-24 13:19:11] [INFO ] [Nat]Absence check using state equation in 27 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:11] [INFO ] Deduced a trap composed of 18 places in 47 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:11] [INFO ] Deduced a trap composed of 30 places in 42 ms of which 5 ms to minimize.
[2026-05-24 13:19:11] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 109 ms
[2026-05-24 13:19:11] [INFO ] Computed and/alt/rep : 97/187/97 causal constraints (skipped 0 transitions) in 7 ms.
[2026-05-24 13:19:11] [INFO ] Added : 93 causal constraints over 19 iterations in 196 ms. Result :sat
Minimization took 75 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:19:11] [INFO ] [Real]Absence check using 5 positive place invariants in 3 ms returned sat
[2026-05-24 13:19:11] [INFO ] [Real]Absence check using 5 positive and 9 generalized place invariants in 2 ms returned sat
[2026-05-24 13:19:11] [INFO ] [Real]Absence check using state equation in 30 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:11] [INFO ] Deduced a trap composed of 18 places in 50 ms of which 6 ms to minimize.
[2026-05-24 13:19:11] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:19:11] [INFO ] [Nat]Absence check using 5 positive place invariants in 3 ms returned sat
[2026-05-24 13:19:11] [INFO ] [Nat]Absence check using 5 positive and 9 generalized place invariants in 4 ms returned sat
[2026-05-24 13:19:11] [INFO ] [Nat]Absence check using state equation in 28 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:11] [INFO ] Deduced a trap composed of 18 places in 44 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:12] [INFO ] Deduced a trap composed of 34 places in 44 ms of which 9 ms to minimize.
[2026-05-24 13:19:12] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 104 ms
[2026-05-24 13:19:12] [INFO ] Computed and/alt/rep : 97/187/97 causal constraints (skipped 0 transitions) in 5 ms.
[2026-05-24 13:19:12] [INFO ] Added : 71 causal constraints over 15 iterations in 140 ms. Result :sat
Minimization took 73 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:19:12] [INFO ] [Real]Absence check using 5 positive place invariants in 3 ms returned sat
[2026-05-24 13:19:12] [INFO ] [Real]Absence check using 5 positive and 9 generalized place invariants in 2 ms returned sat
[2026-05-24 13:19:12] [INFO ] [Real]Absence check using state equation in 26 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:12] [INFO ] Deduced a trap composed of 18 places in 54 ms of which 6 ms to minimize.
[2026-05-24 13:19:12] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:19:12] [INFO ] [Nat]Absence check using 5 positive place invariants in 2 ms returned sat
[2026-05-24 13:19:12] [INFO ] [Nat]Absence check using 5 positive and 9 generalized place invariants in 1 ms returned sat
[2026-05-24 13:19:12] [INFO ] [Nat]Absence check using state equation in 25 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:12] [INFO ] Deduced a trap composed of 18 places in 47 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:12] [INFO ] Deduced a trap composed of 34 places in 46 ms of which 6 ms to minimize.
[2026-05-24 13:19:12] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 126 ms
[2026-05-24 13:19:12] [INFO ] Computed and/alt/rep : 97/187/97 causal constraints (skipped 0 transitions) in 5 ms.
[2026-05-24 13:19:12] [INFO ] Added : 91 causal constraints over 19 iterations in 182 ms. Result :sat
Minimization took 83 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:19:12] [INFO ] [Real]Absence check using 5 positive place invariants in 3 ms returned sat
[2026-05-24 13:19:12] [INFO ] [Real]Absence check using 5 positive and 9 generalized place invariants in 2 ms returned sat
[2026-05-24 13:19:12] [INFO ] [Real]Absence check using state equation in 30 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:12] [INFO ] Deduced a trap composed of 18 places in 43 ms of which 4 ms to minimize.
[2026-05-24 13:19:12] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:19:12] [INFO ] [Nat]Absence check using 5 positive place invariants in 3 ms returned sat
[2026-05-24 13:19:12] [INFO ] [Nat]Absence check using 5 positive and 9 generalized place invariants in 2 ms returned sat
[2026-05-24 13:19:13] [INFO ] [Nat]Absence check using state equation in 27 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:13] [INFO ] Deduced a trap composed of 18 places in 44 ms of which 3 ms to minimize.
[2026-05-24 13:19:13] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 58 ms
[2026-05-24 13:19:13] [INFO ] Computed and/alt/rep : 97/187/97 causal constraints (skipped 0 transitions) in 5 ms.
[2026-05-24 13:19:13] [INFO ] Added : 50 causal constraints over 10 iterations in 109 ms. Result :sat
Minimization took 83 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0, 0, 4, 0, 0, 0, 0, 0] Max Struct:[12, +inf, +inf, 1, 1, 1, 1, 1]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0, 0, 4, 0, 0, 0, 0, 0] Max Struct:[12, +inf, +inf, 1, 1, 1, 1, 1]
Support contains 8 out of 110 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 110/110 places, 98/98 transitions.
Graph (complete) has 178 edges and 110 vertex of which 106 are kept as prefixes of interest. Removing 4 places using SCC suffix rule.1 ms
Discarding 4 places :
Also discarding 0 output transitions
Drop transitions (Trivial Post-Agglo cleanup.) removed 14 transitions
Trivial Post-agglo rules discarded 14 transitions
Performed 14 trivial Post agglomeration. Transition count delta: 14
Iterating post reduction 0 with 14 rules applied. Total rules applied 15 place count 106 transition count 84
Reduce places removed 14 places and 0 transitions.
Performed 3 Post agglomeration using F-continuation condition.Transition count delta: 3
Iterating post reduction 1 with 17 rules applied. Total rules applied 32 place count 92 transition count 81
Reduce places removed 3 places and 0 transitions.
Iterating post reduction 2 with 3 rules applied. Total rules applied 35 place count 89 transition count 81
Performed 4 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 4 Pre rules applied. Total rules applied 35 place count 89 transition count 77
Deduced a syphon composed of 4 places in 1 ms
Reduce places removed 4 places and 0 transitions.
Iterating global reduction 3 with 8 rules applied. Total rules applied 43 place count 85 transition count 77
Performed 19 Post agglomeration using F-continuation condition.Transition count delta: 19
Deduced a syphon composed of 19 places in 0 ms
Reduce places removed 19 places and 0 transitions.
Iterating global reduction 3 with 38 rules applied. Total rules applied 81 place count 66 transition count 58
Performed 2 Post agglomeration using F-continuation condition.Transition count delta: 0
Deduced a syphon composed of 2 places in 0 ms
Reduce places removed 2 places and 0 transitions.
Iterating global reduction 3 with 4 rules applied. Total rules applied 85 place count 64 transition count 58
Free-agglomeration rule (complex) applied 7 times.
Iterating global reduction 3 with 7 rules applied. Total rules applied 92 place count 64 transition count 51
Reduce places removed 7 places and 0 transitions.
Iterating post reduction 3 with 7 rules applied. Total rules applied 99 place count 57 transition count 51
Partial Free-agglomeration rule applied 9 times.
Drop transitions (Partial Free agglomeration) removed 9 transitions
Iterating global reduction 4 with 9 rules applied. Total rules applied 108 place count 57 transition count 51
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 4 with 1 rules applied. Total rules applied 109 place count 56 transition count 50
Applied a total of 109 rules in 44 ms. Remains 56 /110 variables (removed 54) and now considering 50/98 (removed 48) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 51 ms. Remains : 56/110 places, 50/98 transitions.
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {1=1, 2=1, 3=1, 17=1, 18=1, 19=1, 30=1, 31=1, 44=1, 46=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {1=1, 2=1, 3=1, 17=1, 18=1, 19=1, 30=1, 31=1, 44=1, 46=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 1105 resets, run finished after 31 ms. (steps per millisecond=322 ) properties (out of 8) seen :[0, 1, 4, 0, 1, 1, 1, 1]
Current structural bounds on expressions (after cover walk) : Max Seen:[0, 1, 4, 0, 1, 1, 1, 1] Max Struct:[12, +inf, +inf, 1, 1, 1, 1, 1]
// Phase 1: matrix 50 rows 56 cols
[2026-05-24 13:19:13] [INFO ] Computed 11 invariants in 5 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0, 1, 4, 0, 1, 1, 1, 1] Max Struct:[12, +inf, +inf, 1, 1, 1, 1, 1]
FORMULA DoubleExponent-PT-002-UpperBounds-10 1 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA DoubleExponent-PT-002-UpperBounds-08 1 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA DoubleExponent-PT-002-UpperBounds-06 1 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA DoubleExponent-PT-002-UpperBounds-05 1 TECHNIQUES TOPOLOGICAL INITIAL_STATE
RANDOM walk for 1000000 steps (112784 resets) in 701 ms. (1424 steps per ms)
BEST_FIRST walk for 4000000 steps (310524 resets) in 1870 ms. (2137 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0, 1, 4, 0] Max Struct:[12, +inf, +inf, 1]
[2026-05-24 13:19:16] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:19:16] [INFO ] [Real]Absence check using 2 positive place invariants in 1 ms returned sat
[2026-05-24 13:19:16] [INFO ] [Real]Absence check using 2 positive and 9 generalized place invariants in 2 ms returned sat
[2026-05-24 13:19:16] [INFO ] [Real]Absence check using state equation in 15 ms returned sat
[2026-05-24 13:19:16] [INFO ] State equation strengthened by 5 read => feed constraints.
[2026-05-24 13:19:16] [INFO ] [Real]Added 5 Read/Feed constraints in 3 ms returned sat
[2026-05-24 13:19:16] [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 13:19:16] [INFO ] [Nat]Absence check using 2 positive place invariants in 1 ms returned sat
[2026-05-24 13:19:16] [INFO ] [Nat]Absence check using 2 positive and 9 generalized place invariants in 5 ms returned sat
[2026-05-24 13:19:16] [INFO ] [Nat]Absence check using state equation in 15 ms returned sat
[2026-05-24 13:19:16] [INFO ] [Nat]Added 5 Read/Feed constraints in 2 ms returned sat
[2026-05-24 13:19:16] [INFO ] Computed and/alt/rep : 49/182/49 causal constraints (skipped 0 transitions) in 3 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:16] [INFO ] Deduced a trap composed of 9 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 13:19:16] [INFO ] Deduced a trap composed of 10 places in 42 ms of which 4 ms to minimize.
[2026-05-24 13:19:16] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 116 ms
[2026-05-24 13:19:16] [INFO ] Added : 44 causal constraints over 10 iterations in 179 ms. Result :sat
Minimization took 27 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:19:16] [INFO ] [Real]Absence check using 2 positive place invariants in 1 ms returned sat
[2026-05-24 13:19:16] [INFO ] [Real]Absence check using 2 positive and 9 generalized place invariants in 2 ms returned sat
[2026-05-24 13:19:16] [INFO ] [Real]Absence check using state equation in 12 ms returned sat
[2026-05-24 13:19:16] [INFO ] [Real]Added 5 Read/Feed constraints in 2 ms returned sat
[2026-05-24 13:19:16] [INFO ] Computed and/alt/rep : 49/182/49 causal constraints (skipped 0 transitions) in 3 ms.
[2026-05-24 13:19:16] [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 13:19:16] [INFO ] [Nat]Absence check using 2 positive place invariants in 1 ms returned sat
[2026-05-24 13:19:16] [INFO ] [Nat]Absence check using 2 positive and 9 generalized place invariants in 2 ms returned sat
[2026-05-24 13:19:16] [INFO ] [Nat]Absence check using state equation in 13 ms returned sat
[2026-05-24 13:19:16] [INFO ] [Nat]Added 5 Read/Feed constraints in 2 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:16] [INFO ] Deduced a trap composed of 5 places in 37 ms of which 2 ms to minimize.
[2026-05-24 13:19:16] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 45 ms
[2026-05-24 13:19:16] [INFO ] Computed and/alt/rep : 49/182/49 causal constraints (skipped 0 transitions) in 4 ms.
[2026-05-24 13:19:16] [INFO ] Added : 39 causal constraints over 8 iterations in 54 ms. Result :sat
Minimization took 21 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:19:16] [INFO ] [Real]Absence check using 2 positive place invariants in 1 ms returned sat
[2026-05-24 13:19:16] [INFO ] [Real]Absence check using 2 positive and 9 generalized place invariants in 1 ms returned sat
[2026-05-24 13:19:16] [INFO ] [Real]Absence check using state equation in 22 ms returned sat
[2026-05-24 13:19:16] [INFO ] [Real]Added 5 Read/Feed constraints in 2 ms returned sat
[2026-05-24 13:19:16] [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 13:19:17] [INFO ] [Nat]Absence check using 2 positive place invariants in 1 ms returned sat
[2026-05-24 13:19:17] [INFO ] [Nat]Absence check using 2 positive and 9 generalized place invariants in 2 ms returned sat
[2026-05-24 13:19:17] [INFO ] [Nat]Absence check using state equation in 15 ms returned sat
[2026-05-24 13:19:17] [INFO ] [Nat]Added 5 Read/Feed constraints in 2 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:17] [INFO ] Deduced a trap composed of 5 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 13:19:17] [INFO ] Deduced a trap composed of 10 places in 41 ms of which 2 ms to minimize.
[2026-05-24 13:19:17] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 98 ms
[2026-05-24 13:19:17] [INFO ] Computed and/alt/rep : 49/182/49 causal constraints (skipped 0 transitions) in 3 ms.
[2026-05-24 13:19:17] [INFO ] Added : 44 causal constraints over 10 iterations in 71 ms. Result :sat
Minimization took 43 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:19:17] [INFO ] [Real]Absence check using 2 positive place invariants in 1 ms returned sat
[2026-05-24 13:19:17] [INFO ] [Real]Absence check using 2 positive and 9 generalized place invariants in 2 ms returned sat
[2026-05-24 13:19:17] [INFO ] [Real]Absence check using state equation in 12 ms returned sat
[2026-05-24 13:19:17] [INFO ] [Real]Added 5 Read/Feed constraints in 2 ms returned sat
[2026-05-24 13:19:17] [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 13:19:17] [INFO ] [Nat]Absence check using 2 positive place invariants in 1 ms returned sat
[2026-05-24 13:19:17] [INFO ] [Nat]Absence check using 2 positive and 9 generalized place invariants in 1 ms returned sat
[2026-05-24 13:19:17] [INFO ] [Nat]Absence check using state equation in 13 ms returned sat
[2026-05-24 13:19:17] [INFO ] [Nat]Added 5 Read/Feed constraints in 2 ms returned sat
[2026-05-24 13:19:17] [INFO ] Computed and/alt/rep : 49/182/49 causal constraints (skipped 0 transitions) in 2 ms.
[2026-05-24 13:19:17] [INFO ] Added : 47 causal constraints over 10 iterations in 63 ms. Result :sat
Minimization took 30 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0, 1, 4, 0] Max Struct:[12, +inf, +inf, 1]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0, 1, 4, 0] Max Struct:[12, +inf, +inf, 1]
Support contains 4 out of 56 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 56/56 places, 50/50 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 3 transitions
Trivial Post-agglo rules discarded 3 transitions
Performed 3 trivial Post agglomeration. Transition count delta: 3
Iterating post reduction 0 with 3 rules applied. Total rules applied 3 place count 56 transition count 47
Reduce places removed 3 places and 0 transitions.
Iterating post reduction 1 with 3 rules applied. Total rules applied 6 place count 53 transition count 47
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 2 with 2 rules applied. Total rules applied 8 place count 52 transition count 46
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 0
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 2 with 2 rules applied. Total rules applied 10 place count 51 transition count 46
Partial Free-agglomeration rule applied 1 times.
Drop transitions (Partial Free agglomeration) removed 1 transitions
Iterating global reduction 2 with 1 rules applied. Total rules applied 11 place count 51 transition count 46
Applied a total of 11 rules in 8 ms. Remains 51 /56 variables (removed 5) and now considering 46/50 (removed 4) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 8 ms. Remains : 51/56 places, 46/50 transitions.
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {1=1, 2=1, 3=1, 12=1, 13=1, 14=1, 23=1, 24=1, 35=1, 37=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {1=1, 2=1, 3=1, 12=1, 13=1, 14=1, 23=1, 24=1, 35=1, 37=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 1120 resets, run finished after 42 ms. (steps per millisecond=238 ) properties (out of 4) seen :[0, 0, 4, 0]
Current structural bounds on expressions (after cover walk) : Max Seen:[0, 1, 4, 0] Max Struct:[12, +inf, +inf, 1]
// Phase 1: matrix 46 rows 51 cols
[2026-05-24 13:19:17] [INFO ] Computed 11 invariants in 1 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0, 1, 4, 0] Max Struct:[12, +inf, +inf, 1]
RANDOM walk for 1000000 steps (112842 resets) in 579 ms. (1724 steps per ms)
BEST_FIRST walk for 4000002 steps (310531 resets) in 1764 ms. (2266 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0, 1, 4, 0] Max Struct:[12, +inf, +inf, 1]
[2026-05-24 13:19:19] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:19:19] [INFO ] [Real]Absence check using 2 positive place invariants in 1 ms returned sat
[2026-05-24 13:19:19] [INFO ] [Real]Absence check using 2 positive and 9 generalized place invariants in 2 ms returned sat
[2026-05-24 13:19:20] [INFO ] [Real]Absence check using state equation in 13 ms returned sat
[2026-05-24 13:19:20] [INFO ] State equation strengthened by 7 read => feed constraints.
[2026-05-24 13:19:20] [INFO ] [Real]Added 7 Read/Feed constraints in 1 ms returned sat
[2026-05-24 13:19:20] [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 13:19:20] [INFO ] [Nat]Absence check using 2 positive place invariants in 1 ms returned sat
[2026-05-24 13:19:20] [INFO ] [Nat]Absence check using 2 positive and 9 generalized place invariants in 2 ms returned sat
[2026-05-24 13:19:20] [INFO ] [Nat]Absence check using state equation in 19 ms returned sat
[2026-05-24 13:19:20] [INFO ] [Nat]Added 7 Read/Feed constraints in 1 ms returned sat
[2026-05-24 13:19:20] [INFO ] Computed and/alt/rep : 45/205/45 causal constraints (skipped 0 transitions) in 3 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:20] [INFO ] Deduced a trap composed of 9 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 13:19:20] [INFO ] Deduced a trap composed of 10 places in 44 ms of which 3 ms to minimize.
[2026-05-24 13:19:20] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 101 ms
[2026-05-24 13:19:20] [INFO ] Added : 42 causal constraints over 9 iterations in 172 ms. Result :sat
Minimization took 27 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:19:20] [INFO ] [Real]Absence check using 2 positive place invariants in 1 ms returned sat
[2026-05-24 13:19:20] [INFO ] [Real]Absence check using 2 positive and 9 generalized place invariants in 2 ms returned sat
[2026-05-24 13:19:20] [INFO ] [Real]Absence check using state equation in 17 ms returned sat
[2026-05-24 13:19:20] [INFO ] [Real]Added 7 Read/Feed constraints in 3 ms returned sat
[2026-05-24 13:19:20] [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 13:19:20] [INFO ] [Nat]Absence check using 2 positive place invariants in 1 ms returned sat
[2026-05-24 13:19:20] [INFO ] [Nat]Absence check using 2 positive and 9 generalized place invariants in 2 ms returned sat
[2026-05-24 13:19:20] [INFO ] [Nat]Absence check using state equation in 13 ms returned sat
[2026-05-24 13:19:20] [INFO ] [Nat]Added 7 Read/Feed constraints in 3 ms returned sat
[2026-05-24 13:19:20] [INFO ] Computed and/alt/rep : 45/205/45 causal constraints (skipped 0 transitions) in 2 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:20] [INFO ] Deduced a trap composed of 8 places in 42 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:20] [INFO ] Deduced a trap composed of 9 places in 37 ms of which 2 ms to minimize.
[2026-05-24 13:19:20] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 98 ms
[2026-05-24 13:19:20] [INFO ] Added : 38 causal constraints over 9 iterations in 158 ms. Result :sat
Minimization took 21 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:19:20] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2026-05-24 13:19:20] [INFO ] [Real]Absence check using 2 positive and 9 generalized place invariants in 2 ms returned sat
[2026-05-24 13:19:20] [INFO ] [Real]Absence check using state equation in 13 ms returned sat
[2026-05-24 13:19:20] [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 13:19:20] [INFO ] [Nat]Absence check using 2 positive place invariants in 1 ms returned sat
[2026-05-24 13:19:20] [INFO ] [Nat]Absence check using 2 positive and 9 generalized place invariants in 2 ms returned sat
[2026-05-24 13:19:20] [INFO ] [Nat]Absence check using state equation in 15 ms returned sat
[2026-05-24 13:19:20] [INFO ] [Nat]Added 7 Read/Feed constraints in 4 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:20] [INFO ] Deduced a trap composed of 5 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 13:19:20] [INFO ] Deduced a trap composed of 9 places in 36 ms of which 2 ms to minimize.
[2026-05-24 13:19:20] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 92 ms
[2026-05-24 13:19:20] [INFO ] Computed and/alt/rep : 45/205/45 causal constraints (skipped 0 transitions) in 2 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:20] [INFO ] Deduced a trap composed of 4 places in 41 ms of which 2 ms to minimize.
[2026-05-24 13:19:20] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 51 ms
[2026-05-24 13:19:20] [INFO ] Added : 14 causal constraints over 4 iterations in 78 ms. Result :sat
Minimization took 17 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:19:20] [INFO ] [Real]Absence check using 2 positive place invariants in 1 ms returned sat
[2026-05-24 13:19:20] [INFO ] [Real]Absence check using 2 positive and 9 generalized place invariants in 2 ms returned sat
[2026-05-24 13:19:20] [INFO ] [Real]Absence check using state equation in 14 ms returned sat
[2026-05-24 13:19:20] [INFO ] [Real]Added 7 Read/Feed constraints in 3 ms returned sat
[2026-05-24 13:19:20] [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 13:19:20] [INFO ] [Nat]Absence check using 2 positive place invariants in 1 ms returned sat
[2026-05-24 13:19:20] [INFO ] [Nat]Absence check using 2 positive and 9 generalized place invariants in 2 ms returned sat
[2026-05-24 13:19:20] [INFO ] [Nat]Absence check using state equation in 13 ms returned sat
[2026-05-24 13:19:20] [INFO ] [Nat]Added 7 Read/Feed constraints in 2 ms returned sat
[2026-05-24 13:19:20] [INFO ] Computed and/alt/rep : 45/205/45 causal constraints (skipped 0 transitions) in 3 ms.
[2026-05-24 13:19:21] [INFO ] Added : 42 causal constraints over 10 iterations in 75 ms. Result :sat
Minimization took 28 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0, 1, 4, 0] Max Struct:[12, +inf, +inf, 1]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0, 1, 4, 0] Max Struct:[12, +inf, +inf, 1]
Support contains 4 out of 51 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 51/51 places, 46/46 transitions.
Applied a total of 0 rules in 2 ms. Remains 51 /51 variables (removed 0) and now considering 46/46 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 2 ms. Remains : 51/51 places, 46/46 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 51/51 places, 46/46 transitions.
Applied a total of 0 rules in 2 ms. Remains 51 /51 variables (removed 0) and now considering 46/46 (removed 0) transitions.
[2026-05-24 13:19:21] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 13:19:21] [INFO ] Implicit Places using invariants in 56 ms returned [33]
Discarding 1 places :
Implicit Place search using SMT only with invariants took 57 ms to find 1 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 1 : 50/51 places, 46/46 transitions.
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 1 place count 49 transition count 44
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 49 transition count 44
Applied a total of 2 rules in 4 ms. Remains 49 /50 variables (removed 1) and now considering 44/46 (removed 2) transitions.
// Phase 1: matrix 44 rows 49 cols
[2026-05-24 13:19:21] [INFO ] Computed 10 invariants in 2 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 13:19:21] [INFO ] Implicit Places using invariants in 44 ms returned []
[2026-05-24 13:19:21] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 13:19:21] [INFO ] State equation strengthened by 5 read => feed constraints.
[2026-05-24 13:19:21] [INFO ] Implicit Places using invariants and state equation in 76 ms returned [16, 21]
Discarding 2 places :
Implicit Place search using SMT with State Equation took 123 ms to find 2 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 2 : 47/51 places, 44/46 transitions.
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 47 transition count 43
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 46 transition count 43
Applied a total of 2 rules in 5 ms. Remains 46 /47 variables (removed 1) and now considering 43/44 (removed 1) transitions.
// Phase 1: matrix 43 rows 46 cols
[2026-05-24 13:19:21] [INFO ] Computed 8 invariants in 1 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 13:19:21] [INFO ] Implicit Places using invariants in 39 ms returned []
[2026-05-24 13:19:21] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 13:19:21] [INFO ] State equation strengthened by 5 read => feed constraints.
[2026-05-24 13:19:21] [INFO ] Implicit Places using invariants and state equation in 68 ms returned []
Implicit Place search using SMT with State Equation took 108 ms to find 0 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 3 : 46/51 places, 43/46 transitions.
Finished structural reductions in REACHABILITY mode , in 3 iterations and 303 ms. Remains : 46/51 places, 43/46 transitions.
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {1=1, 2=1, 5=1, 6=1, 11=1, 12=1, 20=1, 21=1, 32=1, 34=1, 38=1, 41=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {1=1, 2=1, 11=1, 12=1, 20=1, 21=1, 32=1, 34=1, 41=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 1260 resets, run finished after 21 ms. (steps per millisecond=476 ) properties (out of 4) seen :[0, 1, 4, 0]
Current structural bounds on expressions (after cover walk) : Max Seen:[0, 1, 4, 0] Max Struct:[12, +inf, +inf, 1]
[2026-05-24 13:19:21] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[0, 1, 4, 0] Max Struct:[12, +inf, +inf, 1]
RANDOM walk for 1000000 steps (125051 resets) in 573 ms. (1742 steps per ms)
BEST_FIRST walk for 4000003 steps (332749 resets) in 1861 ms. (2148 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0, 1, 4, 0] Max Struct:[12, +inf, +inf, 1]
[2026-05-24 13:19:23] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:19:23] [INFO ] [Real]Absence check using 2 positive place invariants in 1 ms returned sat
[2026-05-24 13:19:23] [INFO ] [Real]Absence check using 2 positive and 6 generalized place invariants in 2 ms returned sat
[2026-05-24 13:19:23] [INFO ] [Real]Absence check using state equation in 12 ms returned sat
[2026-05-24 13:19:23] [INFO ] State equation strengthened by 5 read => feed constraints.
[2026-05-24 13:19:23] [INFO ] [Real]Added 5 Read/Feed constraints in 2 ms returned sat
[2026-05-24 13:19:23] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:19:23] [INFO ] [Nat]Absence check using 2 positive place invariants in 1 ms returned sat
[2026-05-24 13:19:23] [INFO ] [Nat]Absence check using 2 positive and 6 generalized place invariants in 1 ms returned sat
[2026-05-24 13:19:23] [INFO ] [Nat]Absence check using state equation in 11 ms returned sat
[2026-05-24 13:19:23] [INFO ] [Nat]Added 5 Read/Feed constraints in 2 ms returned sat
[2026-05-24 13:19:24] [INFO ] Computed and/alt/rep : 42/176/42 causal constraints (skipped 0 transitions) in 2 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:24] [INFO ] Deduced a trap composed of 9 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 13:19:24] [INFO ] Deduced a trap composed of 9 places in 43 ms of which 3 ms to minimize.
[2026-05-24 13:19:24] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 103 ms
[2026-05-24 13:19:24] [INFO ] Added : 37 causal constraints over 9 iterations in 166 ms. Result :sat
Minimization took 22 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:19:24] [INFO ] [Real]Absence check using 2 positive place invariants in 1 ms returned sat
[2026-05-24 13:19:24] [INFO ] [Real]Absence check using 2 positive and 6 generalized place invariants in 1 ms returned sat
[2026-05-24 13:19:24] [INFO ] [Real]Absence check using state equation in 10 ms returned sat
[2026-05-24 13:19:24] [INFO ] [Real]Added 5 Read/Feed constraints in 2 ms returned sat
[2026-05-24 13:19:24] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:19:24] [INFO ] [Nat]Absence check using 2 positive place invariants in 0 ms returned sat
[2026-05-24 13:19:24] [INFO ] [Nat]Absence check using 2 positive and 6 generalized place invariants in 1 ms returned sat
[2026-05-24 13:19:24] [INFO ] [Nat]Absence check using state equation in 13 ms returned sat
[2026-05-24 13:19:24] [INFO ] [Nat]Added 5 Read/Feed constraints in 2 ms returned sat
[2026-05-24 13:19:24] [INFO ] Computed and/alt/rep : 42/176/42 causal constraints (skipped 0 transitions) in 2 ms.
[2026-05-24 13:19:24] [INFO ] Added : 34 causal constraints over 8 iterations in 47 ms. Result :sat
Minimization took 19 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:19:24] [INFO ] [Real]Absence check using 2 positive place invariants in 1 ms returned sat
[2026-05-24 13:19:24] [INFO ] [Real]Absence check using 2 positive and 6 generalized place invariants in 2 ms returned sat
[2026-05-24 13:19:24] [INFO ] [Real]Absence check using state equation in 17 ms returned sat
[2026-05-24 13:19:24] [INFO ] [Real]Added 5 Read/Feed constraints in 1 ms returned sat
[2026-05-24 13:19:24] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:19:24] [INFO ] [Nat]Absence check using 2 positive place invariants in 0 ms returned sat
[2026-05-24 13:19:24] [INFO ] [Nat]Absence check using 2 positive and 6 generalized place invariants in 1 ms returned sat
[2026-05-24 13:19:24] [INFO ] [Nat]Absence check using state equation in 11 ms returned sat
[2026-05-24 13:19:24] [INFO ] [Nat]Added 5 Read/Feed constraints in 1 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:24] [INFO ] Deduced a trap composed of 5 places in 31 ms of which 3 ms to minimize.
[2026-05-24 13:19:24] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 40 ms
[2026-05-24 13:19:24] [INFO ] Computed and/alt/rep : 42/176/42 causal constraints (skipped 0 transitions) in 3 ms.
[2026-05-24 13:19:24] [INFO ] Added : 13 causal constraints over 3 iterations in 18 ms. Result :sat
Minimization took 24 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:19:24] [INFO ] [Real]Absence check using 2 positive place invariants in 1 ms returned sat
[2026-05-24 13:19:24] [INFO ] [Real]Absence check using 2 positive and 6 generalized place invariants in 1 ms returned sat
[2026-05-24 13:19:24] [INFO ] [Real]Absence check using state equation in 15 ms returned sat
[2026-05-24 13:19:24] [INFO ] [Real]Added 5 Read/Feed constraints in 2 ms returned sat
[2026-05-24 13:19:24] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:19:24] [INFO ] [Nat]Absence check using 2 positive place invariants in 1 ms returned sat
[2026-05-24 13:19:24] [INFO ] [Nat]Absence check using 2 positive and 6 generalized place invariants in 2 ms returned sat
[2026-05-24 13:19:24] [INFO ] [Nat]Absence check using state equation in 33 ms returned sat
[2026-05-24 13:19:24] [INFO ] [Nat]Added 5 Read/Feed constraints in 2 ms returned sat
[2026-05-24 13:19:24] [INFO ] Computed and/alt/rep : 42/176/42 causal constraints (skipped 0 transitions) in 3 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:24] [INFO ] Deduced a trap composed of 9 places in 46 ms of which 3 ms to minimize.
[2026-05-24 13:19:24] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 53 ms
[2026-05-24 13:19:24] [INFO ] Added : 40 causal constraints over 8 iterations in 139 ms. Result :sat
Minimization took 24 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0, 1, 4, 0] Max Struct:[12, +inf, +inf, 1]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0, 1, 4, 0] Max Struct:[12, +inf, +inf, 1]
Support contains 4 out of 46 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 46/46 places, 43/43 transitions.
Applied a total of 0 rules in 2 ms. Remains 46 /46 variables (removed 0) and now considering 43/43 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 2 ms. Remains : 46/46 places, 43/43 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 46/46 places, 43/43 transitions.
Applied a total of 0 rules in 1 ms. Remains 46 /46 variables (removed 0) and now considering 43/43 (removed 0) transitions.
[2026-05-24 13:19:24] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 13:19:24] [INFO ] Implicit Places using invariants in 57 ms returned []
[2026-05-24 13:19:24] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 13:19:25] [INFO ] State equation strengthened by 5 read => feed constraints.
[2026-05-24 13:19:25] [INFO ] Implicit Places using invariants and state equation in 148 ms returned []
Implicit Place search using SMT with State Equation took 208 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-24 13:19:25] [INFO ] Redundant transitions in 1 ms returned []
Running 42 sub problems to find dead transitions.
[2026-05-24 13:19:25] [INFO ] Invariant cache hit.
[2026-05-24 13:19:25] [INFO ] State equation strengthened by 5 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/45 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 42 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/45 variables, 6/8 constraints. Problems are: Problem set: 0 solved, 42 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/45 variables, 0/8 constraints. Problems are: Problem set: 0 solved, 42 unsolved
At refinement iteration 3 (OVERLAPS) 43/88 variables, 45/53 constraints. Problems are: Problem set: 0 solved, 42 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/88 variables, 5/58 constraints. Problems are: Problem set: 0 solved, 42 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/88 variables, 0/58 constraints. Problems are: Problem set: 0 solved, 42 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (OVERLAPS) 1/89 variables, 1/59 constraints. Problems are: Problem set: 0 solved, 42 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/89 variables, 0/59 constraints. Problems are: Problem set: 0 solved, 42 unsolved
At refinement iteration 8 (OVERLAPS) 0/89 variables, 0/59 constraints. Problems are: Problem set: 0 solved, 42 unsolved
No progress, stopping.
After SMT solving in domain Real declared 89/89 variables, and 59 constraints, problems are : Problem set: 0 solved, 42 unsolved in 914 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 6/6 constraints, State Equation: 46/46 constraints, ReadFeed: 5/5 constraints, PredecessorRefiner: 42/42 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 42 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/45 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 42 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/45 variables, 6/8 constraints. Problems are: Problem set: 0 solved, 42 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/45 variables, 0/8 constraints. Problems are: Problem set: 0 solved, 42 unsolved
At refinement iteration 3 (OVERLAPS) 43/88 variables, 45/53 constraints. Problems are: Problem set: 0 solved, 42 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/88 variables, 5/58 constraints. Problems are: Problem set: 0 solved, 42 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/88 variables, 42/100 constraints. Problems are: Problem set: 0 solved, 42 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/88 variables, 0/100 constraints. Problems are: Problem set: 0 solved, 42 unsolved
At refinement iteration 7 (OVERLAPS) 1/89 variables, 1/101 constraints. Problems are: Problem set: 0 solved, 42 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/89 variables, 0/101 constraints. Problems are: Problem set: 0 solved, 42 unsolved
At refinement iteration 9 (OVERLAPS) 0/89 variables, 0/101 constraints. Problems are: Problem set: 0 solved, 42 unsolved
No progress, stopping.
After SMT solving in domain Int declared 89/89 variables, and 101 constraints, problems are : Problem set: 0 solved, 42 unsolved in 2201 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 6/6 constraints, State Equation: 46/46 constraints, ReadFeed: 5/5 constraints, PredecessorRefiner: 42/42 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 3169ms problems are : Problem set: 0 solved, 42 unsolved
Search for dead transitions found 0 dead transitions in 3177ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 3422 ms. Remains : 46/46 places, 43/43 transitions.
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {1=1, 2=1, 5=1, 6=1, 11=1, 12=1, 20=1, 21=1, 32=1, 34=1, 38=1, 41=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {1=1, 2=1, 11=1, 12=1, 20=1, 21=1, 32=1, 34=1, 41=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 1283 resets, run finished after 10 ms. (steps per millisecond=1000 ) properties (out of 4) seen :[0, 1, 4, 0]
Current structural bounds on expressions (after cover walk) : Max Seen:[0, 1, 4, 0] Max Struct:[12, +inf, +inf, 1]
RANDOM walk for 40000 steps (5002 resets) in 949 ms. (42 steps per ms) remains 6/6 properties
BEST_FIRST walk for 40002 steps (3347 resets) in 434 ms. (91 steps per ms) remains 6/6 properties
BEST_FIRST walk for 40000 steps (3293 resets) in 472 ms. (84 steps per ms) remains 6/6 properties
BEST_FIRST walk for 40001 steps (3335 resets) in 363 ms. (109 steps per ms) remains 6/6 properties
BEST_FIRST walk for 40002 steps (3305 resets) in 223 ms. (178 steps per ms) remains 6/6 properties
BEST_FIRST walk for 40000 steps (3322 resets) in 236 ms. (168 steps per ms) remains 6/6 properties
BEST_FIRST walk for 40001 steps (3301 resets) in 186 ms. (213 steps per ms) remains 6/6 properties
Probably explored full state space saw : 1199 states, properties seen :4
Probabilistic random walk after 2397 steps, saw 1199 distinct states, run finished after 26 ms. (steps per millisecond=92 ) properties seen :4
Explored full state space saw : 1199 states, properties seen :0
Exhaustive walk after 2397 steps, saw 1199 distinct states, run finished after 48 ms. (steps per millisecond=49 ) properties seen :0
[2026-05-24 13:19:29] [INFO ] Flatten gal took : 26 ms
[2026-05-24 13:19:29] [INFO ] Flatten gal took : 11 ms
[2026-05-24 13:19:29] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality12004948920653637783.gal : 7 ms
[2026-05-24 13:19:29] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality6498077415077281562.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/ReachabilityCardinality12004948920653637783.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality6498077415077281562.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...329
ITS runner timed out or was interrupted.
Loading property file /tmp/ReachabilityCardinality6498077415077281562.prop.
ITS tools runner thread asked to quit. Dying gracefully.
java.io.IOException: Stream closed
at java.base/java.io.BufferedInputStream.getBufIfOpen(BufferedInputStream.java:188)
at java.base/java.io.BufferedInputStream.read1(BufferedInputStream.java:343)
at java.base/java.io.BufferedInputStream.implRead(BufferedInputStream.java:420)
at java.base/java.io.BufferedInputStream.read(BufferedInputStream.java:405)
at java.base/sun.nio.cs.StreamDecoder.readBytes(StreamDecoder.java:350)
at java.base/sun.nio.cs.StreamDecoder.implRead(StreamDecoder.java:393)
at java.base/sun.nio.cs.StreamDecoder.lockedRead(StreamDecoder.java:217)
at java.base/sun.nio.cs.StreamDecoder.read(StreamDecoder.java:171)
at java.base/java.io.InputStreamReader.read(InputStreamReader.java:188)
at java.base/java.io.BufferedReader.fill(BufferedReader.java:160)
at java.base/java.io.BufferedReader.implReadLine(BufferedReader.java:370)
at java.base/java.io.BufferedReader.readLine(BufferedReader.java:347)
at java.base/java.io.BufferedReader.readLine(BufferedReader.java:436)
at fr.lip6.move.gal.application.runner.its.ITSRunner$ITSInterpreter.run(ITSRunner.java:211)
at java.base/java.lang.Thread.run(Thread.java:1583)
FORMULA DoubleExponent-PT-002-UpperBounds-03 1 TECHNIQUES REACHABILITY_MAX
FORMULA DoubleExponent-PT-002-UpperBounds-02 4 TECHNIQUES REACHABILITY_MIN
Current structural bounds on expressions (After reachability solving 2 queries.) : Max Seen:[0, 1] Max Struct:[12, +inf]
Starting property specific reduction for DoubleExponent-PT-002-UpperBounds-00
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:[12]
Current structural bounds on expressions (Before main loop) : Max Seen:[0] Max Struct:[12]
[2026-05-24 13:19:29] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[12]
RANDOM walk for 10000 steps (1239 resets) in 8 ms. (1111 steps per ms)
BEST_FIRST walk for 10000 steps (812 resets) in 6 ms. (1428 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0] Max Struct:[12]
[2026-05-24 13:19:29] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:19:29] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2026-05-24 13:19:29] [INFO ] [Real]Absence check using 2 positive and 6 generalized place invariants in 2 ms returned sat
[2026-05-24 13:19:29] [INFO ] [Real]Absence check using state equation in 18 ms returned sat
[2026-05-24 13:19:29] [INFO ] State equation strengthened by 5 read => feed constraints.
[2026-05-24 13:19:29] [INFO ] [Real]Added 5 Read/Feed constraints in 5 ms returned sat
[2026-05-24 13:19:29] [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 13:19:29] [INFO ] [Nat]Absence check using 2 positive place invariants in 26 ms returned sat
[2026-05-24 13:19:29] [INFO ] [Nat]Absence check using 2 positive and 6 generalized place invariants in 54 ms returned sat
[2026-05-24 13:19:30] [INFO ] [Nat]Absence check using state equation in 49 ms returned sat
[2026-05-24 13:19:30] [INFO ] [Nat]Added 5 Read/Feed constraints in 2 ms returned sat
[2026-05-24 13:19:30] [INFO ] Computed and/alt/rep : 42/176/42 causal constraints (skipped 0 transitions) in 5 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:30] [INFO ] Deduced a trap composed of 9 places in 37 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:30] [INFO ] Deduced a trap composed of 9 places in 31 ms of which 2 ms to minimize.
[2026-05-24 13:19:30] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 103 ms
[2026-05-24 13:19:30] [INFO ] Added : 37 causal constraints over 9 iterations in 348 ms. Result :sat
Minimization took 23 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0] Max Struct:[12]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0] Max Struct:[12]
Support contains 1 out of 46 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 46/46 places, 43/43 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 1 transitions
Trivial Post-agglo rules discarded 1 transitions
Performed 1 trivial Post agglomeration. Transition count delta: 1
Iterating post reduction 0 with 1 rules applied. Total rules applied 1 place count 46 transition count 42
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 1 with 1 rules applied. Total rules applied 2 place count 45 transition count 42
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 0
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 2 with 2 rules applied. Total rules applied 4 place count 44 transition count 42
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 2 with 1 rules applied. Total rules applied 5 place count 44 transition count 41
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 2 with 1 rules applied. Total rules applied 6 place count 43 transition count 41
Applied a total of 6 rules in 5 ms. Remains 43 /46 variables (removed 3) and now considering 41/43 (removed 2) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 5 ms. Remains : 43/46 places, 41/43 transitions.
// Phase 1: matrix 41 rows 43 cols
[2026-05-24 13:19:30] [INFO ] Computed 8 invariants in 2 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[12]
RANDOM walk for 1000000 steps (156273 resets) in 582 ms. (1715 steps per ms)
BEST_FIRST walk for 1000000 steps (96390 resets) in 390 ms. (2557 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0] Max Struct:[12]
[2026-05-24 13:19:31] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:19:31] [INFO ] [Real]Absence check using 2 positive place invariants in 4 ms returned sat
[2026-05-24 13:19:31] [INFO ] [Real]Absence check using 2 positive and 6 generalized place invariants in 1 ms returned sat
[2026-05-24 13:19:31] [INFO ] [Real]Absence check using state equation in 18 ms returned sat
[2026-05-24 13:19:31] [INFO ] State equation strengthened by 8 read => feed constraints.
[2026-05-24 13:19:31] [INFO ] [Real]Added 8 Read/Feed constraints in 2 ms returned sat
[2026-05-24 13:19:31] [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 13:19:31] [INFO ] [Nat]Absence check using 2 positive place invariants in 1 ms returned sat
[2026-05-24 13:19:31] [INFO ] [Nat]Absence check using 2 positive and 6 generalized place invariants in 1 ms returned sat
[2026-05-24 13:19:31] [INFO ] [Nat]Absence check using state equation in 27 ms returned sat
[2026-05-24 13:19:31] [INFO ] [Nat]Added 8 Read/Feed constraints in 3 ms returned sat
[2026-05-24 13:19:31] [INFO ] Computed and/alt/rep : 40/198/40 causal constraints (skipped 0 transitions) in 3 ms.
[2026-05-24 13:19:31] [INFO ] Added : 30 causal constraints over 6 iterations in 71 ms. Result :sat
Minimization took 23 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0] Max Struct:[12]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0] Max Struct:[12]
Support contains 1 out of 43 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 43/43 places, 41/41 transitions.
Applied a total of 0 rules in 2 ms. Remains 43 /43 variables (removed 0) and now considering 41/41 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 2 ms. Remains : 43/43 places, 41/41 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 43/43 places, 41/41 transitions.
Applied a total of 0 rules in 1 ms. Remains 43 /43 variables (removed 0) and now considering 41/41 (removed 0) transitions.
[2026-05-24 13:19:31] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 13:19:31] [INFO ] Implicit Places using invariants in 40 ms returned []
[2026-05-24 13:19:31] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 13:19:31] [INFO ] State equation strengthened by 8 read => feed constraints.
[2026-05-24 13:19:31] [INFO ] Implicit Places using invariants and state equation in 117 ms returned [40]
Discarding 1 places :
Implicit Place search using SMT with State Equation took 171 ms to find 1 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 1 : 42/43 places, 41/41 transitions.
Partial Free-agglomeration rule applied 1 times.
Drop transitions (Partial Free agglomeration) removed 1 transitions
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 42 transition count 41
Applied a total of 1 rules in 2 ms. Remains 42 /42 variables (removed 0) and now considering 41/41 (removed 0) transitions.
// Phase 1: matrix 41 rows 42 cols
[2026-05-24 13:19:31] [INFO ] Computed 7 invariants in 0 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 13:19:31] [INFO ] Implicit Places using invariants in 66 ms returned []
[2026-05-24 13:19:31] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 13:19:31] [INFO ] State equation strengthened by 8 read => feed constraints.
[2026-05-24 13:19:31] [INFO ] Implicit Places using invariants and state equation in 88 ms returned []
Implicit Place search using SMT with State Equation took 176 ms to find 0 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 2 : 42/43 places, 41/41 transitions.
Finished structural reductions in REACHABILITY mode , in 2 iterations and 350 ms. Remains : 42/43 places, 41/41 transitions.
[2026-05-24 13:19:31] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[12]
RANDOM walk for 1000000 steps (156135 resets) in 548 ms. (1821 steps per ms)
BEST_FIRST walk for 1000000 steps (96127 resets) in 391 ms. (2551 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0] Max Struct:[12]
[2026-05-24 13:19:32] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:19:32] [INFO ] [Real]Absence check using 2 positive place invariants in 1 ms returned sat
[2026-05-24 13:19:32] [INFO ] [Real]Absence check using 2 positive and 5 generalized place invariants in 1 ms returned sat
[2026-05-24 13:19:32] [INFO ] [Real]Absence check using state equation in 12 ms returned sat
[2026-05-24 13:19:32] [INFO ] State equation strengthened by 8 read => feed constraints.
[2026-05-24 13:19:32] [INFO ] [Real]Added 8 Read/Feed constraints in 1 ms returned sat
[2026-05-24 13:19:32] [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 13:19:33] [INFO ] [Nat]Absence check using 2 positive place invariants in 1 ms returned sat
[2026-05-24 13:19:33] [INFO ] [Nat]Absence check using 2 positive and 5 generalized place invariants in 1 ms returned sat
[2026-05-24 13:19:33] [INFO ] [Nat]Absence check using state equation in 12 ms returned sat
[2026-05-24 13:19:33] [INFO ] [Nat]Added 8 Read/Feed constraints in 2 ms returned sat
[2026-05-24 13:19:33] [INFO ] Computed and/alt/rep : 40/199/40 causal constraints (skipped 0 transitions) in 2 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:33] [INFO ] Deduced a trap composed of 8 places in 39 ms of which 2 ms to minimize.
[2026-05-24 13:19:33] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 48 ms
[2026-05-24 13:19:33] [INFO ] Added : 31 causal constraints over 7 iterations in 93 ms. Result :sat
Minimization took 22 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0] Max Struct:[12]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0] Max Struct:[12]
Support contains 1 out of 42 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 42/42 places, 41/41 transitions.
Applied a total of 0 rules in 2 ms. Remains 42 /42 variables (removed 0) and now considering 41/41 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 2 ms. Remains : 42/42 places, 41/41 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 42/42 places, 41/41 transitions.
Applied a total of 0 rules in 1 ms. Remains 42 /42 variables (removed 0) and now considering 41/41 (removed 0) transitions.
[2026-05-24 13:19:33] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 13:19:33] [INFO ] Implicit Places using invariants in 37 ms returned []
[2026-05-24 13:19:33] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 13:19:33] [INFO ] State equation strengthened by 8 read => feed constraints.
[2026-05-24 13:19:33] [INFO ] Implicit Places using invariants and state equation in 65 ms returned []
Implicit Place search using SMT with State Equation took 104 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-24 13:19:33] [INFO ] Redundant transitions in 0 ms returned []
Running 40 sub problems to find dead transitions.
[2026-05-24 13:19:33] [INFO ] Invariant cache hit.
[2026-05-24 13:19:33] [INFO ] State equation strengthened by 8 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/41 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 40 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/41 variables, 5/7 constraints. Problems are: Problem set: 0 solved, 40 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/41 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 40 unsolved
At refinement iteration 3 (OVERLAPS) 41/82 variables, 41/48 constraints. Problems are: Problem set: 0 solved, 40 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/82 variables, 8/56 constraints. Problems are: Problem set: 0 solved, 40 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/82 variables, 0/56 constraints. Problems are: Problem set: 0 solved, 40 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (OVERLAPS) 1/83 variables, 1/57 constraints. Problems are: Problem set: 0 solved, 40 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/83 variables, 0/57 constraints. Problems are: Problem set: 0 solved, 40 unsolved
At refinement iteration 8 (OVERLAPS) 0/83 variables, 0/57 constraints. Problems are: Problem set: 0 solved, 40 unsolved
No progress, stopping.
After SMT solving in domain Real declared 83/83 variables, and 57 constraints, problems are : Problem set: 0 solved, 40 unsolved in 620 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 5/5 constraints, State Equation: 42/42 constraints, ReadFeed: 8/8 constraints, PredecessorRefiner: 40/40 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 40 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/41 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 40 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/41 variables, 5/7 constraints. Problems are: Problem set: 0 solved, 40 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/41 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 40 unsolved
At refinement iteration 3 (OVERLAPS) 41/82 variables, 41/48 constraints. Problems are: Problem set: 0 solved, 40 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/82 variables, 8/56 constraints. Problems are: Problem set: 0 solved, 40 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/82 variables, 40/96 constraints. Problems are: Problem set: 0 solved, 40 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/82 variables, 0/96 constraints. Problems are: Problem set: 0 solved, 40 unsolved
At refinement iteration 7 (OVERLAPS) 1/83 variables, 1/97 constraints. Problems are: Problem set: 0 solved, 40 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:34] [INFO ] Deduced a trap composed of 8 places in 44 ms of which 2 ms to minimize.
At refinement iteration 8 (INCLUDED_ONLY) 0/83 variables, 1/98 constraints. Problems are: Problem set: 0 solved, 40 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/83 variables, 0/98 constraints. Problems are: Problem set: 0 solved, 40 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:35] [INFO ] Deduced a trap composed of 5 places in 31 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:35] [INFO ] Deduced a trap composed of 8 places in 32 ms of which 3 ms to minimize.
At refinement iteration 10 (OVERLAPS) 0/83 variables, 2/100 constraints. Problems are: Problem set: 0 solved, 40 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:36] [INFO ] Deduced a trap along path composed of 7 places in 23 ms of which 3 ms to minimize.
At refinement iteration 11 (INCLUDED_ONLY) 0/83 variables, 1/101 constraints. Problems are: Problem set: 0 solved, 40 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/83 variables, 0/101 constraints. Problems are: Problem set: 0 solved, 40 unsolved
At refinement iteration 13 (OVERLAPS) 0/83 variables, 0/101 constraints. Problems are: Problem set: 0 solved, 40 unsolved
No progress, stopping.
After SMT solving in domain Int declared 83/83 variables, and 101 constraints, problems are : Problem set: 0 solved, 40 unsolved in 3379 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 5/5 constraints, State Equation: 42/42 constraints, ReadFeed: 8/8 constraints, PredecessorRefiner: 40/40 constraints, Known Traps: 3/3 constraints, Known Traps Along Path: 1/1 constraints]
After SMT, in 4012ms problems are : Problem set: 0 solved, 40 unsolved
Search for dead transitions found 0 dead transitions in 4012ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 4123 ms. Remains : 42/42 places, 41/41 transitions.
[2026-05-24 13:19:37] [INFO ] Flatten gal took : 6 ms
[2026-05-24 13:19:37] [INFO ] Flatten gal took : 6 ms
[2026-05-24 13:19:37] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality10964019956056100540.gal : 2 ms
[2026-05-24 13:19:37] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality4772588489862506768.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/ReachabilityCardinality10964019956056100540.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality4772588489862506768.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...329
Loading property file /tmp/ReachabilityCardinality4772588489862506768.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 11
SDD proceeding with computation,2 properties remain. new max is 32
SDD size :11 after 16
SDD proceeding with computation,2 properties remain. new max is 64
SDD size :16 after 31
SDD proceeding with computation,2 properties remain. new max is 128
SDD size :31 after 99
RANDOM walk for 40000 steps (6231 resets) in 192 ms. (207 steps per ms) remains 2/2 properties
SDD proceeding with computation,2 properties remain. new max is 256
SDD size :99 after 175
Invariant property MIN0 does not hold.
SDD proceeding with computation,1 properties remain. new max is 256
SDD size :280 after 508
SDD proceeding with computation,1 properties remain. new max is 512
SDD size :837 after 839
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
petri\_inst\_inst,1172,0.038535,5656,2,1218,17,7061,7,0,212,5410,0
Total reachable state count : 1172

Verifying 2 reachability properties.
Reachability property MAX0 does not hold.
No reachable states exhibit your property : MAX0

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
MAX0,0,0.038845,5656,1,0,17,7061,7,0,213,5410,0
Invariant property MIN0 does not hold.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
MIN0,214,0.039568,5912,2,495,17,7061,8,0,215,5410,0
BEST_FIRST walk for 40002 steps (3882 resets) in 65 ms. (606 steps per ms) remains 2/2 properties
BEST_FIRST walk for 40001 steps (3902 resets) in 60 ms. (655 steps per ms) remains 2/2 properties
Probably explored full state space saw : 1172 states, properties seen :1
Probabilistic random walk after 2343 steps, saw 1172 distinct states, run finished after 8 ms. (steps per millisecond=292 ) properties seen :1
Explored full state space saw : 1172 states, properties seen :0
Exhaustive walk after 2343 steps, saw 1172 distinct states, run finished after 4 ms. (steps per millisecond=585 ) properties seen :0
Current structural bounds on expressions (After reachability solving 0 queries.) : Max Seen:[0] Max Struct:[12]
Ending property specific reduction for DoubleExponent-PT-002-UpperBounds-00 in 7714 ms.
Starting property specific reduction for DoubleExponent-PT-002-UpperBounds-01
Current structural bounds on expressions (Initially) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (Adding known information on max bounds.) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (Before main loop) : Max Seen:[0] Max Struct:[+inf]
// Phase 1: matrix 43 rows 46 cols
[2026-05-24 13:19:37] [INFO ] Computed 8 invariants in 1 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[+inf]
RANDOM walk for 10000 steps (1269 resets) in 6 ms. (1428 steps per ms)
BEST_FIRST walk for 10000 steps (825 resets) in 5 ms. (1666 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[1] Max Struct:[+inf]
[2026-05-24 13:19:37] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 13:19:37] [INFO ] [Real]Absence check using 2 positive place invariants in 1 ms returned sat
[2026-05-24 13:19:37] [INFO ] [Real]Absence check using 2 positive and 6 generalized place invariants in 6 ms returned sat
[2026-05-24 13:19:37] [INFO ] [Real]Absence check using state equation in 11 ms returned sat
[2026-05-24 13:19:37] [INFO ] State equation strengthened by 5 read => feed constraints.
[2026-05-24 13:19:37] [INFO ] [Real]Added 5 Read/Feed constraints in 1 ms returned sat
[2026-05-24 13:19:37] [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 13:19:37] [INFO ] [Nat]Absence check using 2 positive place invariants in 1 ms returned sat
[2026-05-24 13:19:37] [INFO ] [Nat]Absence check using 2 positive and 6 generalized place invariants in 2 ms returned sat
[2026-05-24 13:19:37] [INFO ] [Nat]Absence check using state equation in 16 ms returned sat
[2026-05-24 13:19:37] [INFO ] [Nat]Added 5 Read/Feed constraints in 1 ms returned sat
[2026-05-24 13:19:37] [INFO ] Computed and/alt/rep : 42/176/42 causal constraints (skipped 0 transitions) in 3 ms.
[2026-05-24 13:19:37] [INFO ] Added : 34 causal constraints over 8 iterations in 47 ms. Result :sat
Minimization took 20 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[1] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[1] Max Struct:[+inf]
Support contains 1 out of 46 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 46/46 places, 43/43 transitions.
Graph (complete) has 146 edges and 46 vertex of which 44 are kept as prefixes of interest. Removing 2 places using SCC suffix rule.0 ms
Discarding 2 places :
Also discarding 0 output transitions
Drop transitions (Empty/Sink Transition effects.) removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 1 transitions
Trivial Post-agglo rules discarded 1 transitions
Performed 1 trivial Post agglomeration. Transition count delta: 1
Iterating post reduction 0 with 3 rules applied. Total rules applied 4 place count 44 transition count 40
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 1 with 1 rules applied. Total rules applied 5 place count 43 transition count 40
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 1 Pre rules applied. Total rules applied 5 place count 43 transition count 39
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 2 with 2 rules applied. Total rules applied 7 place count 42 transition count 39
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 0
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 2 with 2 rules applied. Total rules applied 9 place count 41 transition count 39
Partial Free-agglomeration rule applied 1 times.
Drop transitions (Partial Free agglomeration) removed 1 transitions
Iterating global reduction 2 with 1 rules applied. Total rules applied 10 place count 41 transition count 39
Applied a total of 10 rules in 6 ms. Remains 41 /46 variables (removed 5) and now considering 39/43 (removed 4) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 6 ms. Remains : 41/46 places, 39/43 transitions.
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {1=1, 2=1, 3=2, 8=1, 15=1, 23=1, 25=1, 27=1, 28=2, 31=1, 35=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {1=1, 2=1, 8=1, 15=1, 23=1, 25=1, 31=1, 35=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 1544 resets, run finished after 18 ms. (steps per millisecond=555 ) properties (out of 1) seen :[1]
Current structural bounds on expressions (after cover walk) : Max Seen:[1] Max Struct:[+inf]
// Phase 1: matrix 39 rows 41 cols
[2026-05-24 13:19:37] [INFO ] Computed 8 invariants in 2 ms
Current structural bounds on expressions (after invariants) : Max Seen:[1] Max Struct:[+inf]
RANDOM walk for 1000000 steps (156326 resets) in 566 ms. (1763 steps per ms)
BEST_FIRST walk for 1000000 steps (96261 resets) in 394 ms. (2531 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[1] Max Struct:[+inf]
[2026-05-24 13:19:38] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:19:38] [INFO ] [Real]Absence check using 5 positive place invariants in 1 ms returned sat
[2026-05-24 13:19:38] [INFO ] [Real]Absence check using 5 positive and 3 generalized place invariants in 1 ms returned sat
[2026-05-24 13:19:38] [INFO ] [Real]Absence check using state equation in 13 ms returned sat
[2026-05-24 13:19:38] [INFO ] State equation strengthened by 8 read => feed constraints.
[2026-05-24 13:19:38] [INFO ] [Real]Added 8 Read/Feed constraints in 3 ms returned sat
[2026-05-24 13:19:38] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:19:38] [INFO ] [Nat]Absence check using 5 positive place invariants in 1 ms returned sat
[2026-05-24 13:19:38] [INFO ] [Nat]Absence check using 5 positive and 3 generalized place invariants in 1 ms returned sat
[2026-05-24 13:19:38] [INFO ] [Nat]Absence check using state equation in 14 ms returned sat
[2026-05-24 13:19:38] [INFO ] [Nat]Added 8 Read/Feed constraints in 2 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:38] [INFO ] Deduced a trap composed of 14 places in 44 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:38] [INFO ] Deduced a trap composed of 16 places in 34 ms of which 3 ms to minimize.
[2026-05-24 13:19:38] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 86 ms
[2026-05-24 13:19:38] [INFO ] Computed and/alt/rep : 38/193/38 causal constraints (skipped 0 transitions) in 3 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:38] [INFO ] Deduced a trap composed of 9 places in 38 ms of which 3 ms to minimize.
[2026-05-24 13:19:38] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 49 ms
[2026-05-24 13:19:38] [INFO ] Added : 37 causal constraints over 8 iterations in 109 ms. Result :sat
Minimization took 22 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[1] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[1] Max Struct:[+inf]
Support contains 1 out of 41 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 41/41 places, 39/39 transitions.
Applied a total of 0 rules in 2 ms. Remains 41 /41 variables (removed 0) and now considering 39/39 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 2 ms. Remains : 41/41 places, 39/39 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 41/41 places, 39/39 transitions.
Applied a total of 0 rules in 1 ms. Remains 41 /41 variables (removed 0) and now considering 39/39 (removed 0) transitions.
[2026-05-24 13:19:38] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 13:19:39] [INFO ] Implicit Places using invariants in 43 ms returned []
[2026-05-24 13:19:39] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 13:19:39] [INFO ] State equation strengthened by 8 read => feed constraints.
[2026-05-24 13:19:39] [INFO ] Implicit Places using invariants and state equation in 70 ms returned [28]
Discarding 1 places :
Implicit Place search using SMT with State Equation took 115 ms to find 1 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 1 : 40/41 places, 39/39 transitions.
Free-agglomeration rule (complex) applied 2 times.
Iterating global reduction 0 with 2 rules applied. Total rules applied 2 place count 40 transition count 37
Reduce places removed 2 places and 0 transitions.
Iterating post reduction 0 with 2 rules applied. Total rules applied 4 place count 38 transition count 37
Applied a total of 4 rules in 5 ms. Remains 38 /40 variables (removed 2) and now considering 37/39 (removed 2) transitions.
// Phase 1: matrix 37 rows 38 cols
[2026-05-24 13:19:39] [INFO ] Computed 7 invariants in 4 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 13:19:39] [INFO ] Implicit Places using invariants in 41 ms returned []
[2026-05-24 13:19:39] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 13:19:39] [INFO ] State equation strengthened by 8 read => feed constraints.
[2026-05-24 13:19:39] [INFO ] Implicit Places using invariants and state equation in 57 ms returned []
Implicit Place search using SMT with State Equation took 99 ms to find 0 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 2 : 38/41 places, 37/39 transitions.
Finished structural reductions in REACHABILITY mode , in 2 iterations and 222 ms. Remains : 38/41 places, 37/39 transitions.
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {1=1, 2=1, 7=1, 13=1, 19=1, 21=1, 27=1, 31=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {1=1, 2=1, 7=1, 13=1, 19=1, 21=1, 27=1, 31=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 1572 resets, run finished after 15 ms. (steps per millisecond=666 ) properties (out of 1) seen :[1]
Current structural bounds on expressions (after cover walk) : Max Seen:[1] Max Struct:[+inf]
[2026-05-24 13:19:39] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[1] Max Struct:[+inf]
RANDOM walk for 1000000 steps (156092 resets) in 547 ms. (1824 steps per ms)
BEST_FIRST walk for 1000001 steps (96082 resets) in 402 ms. (2481 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[1] Max Struct:[+inf]
[2026-05-24 13:19:40] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:19:40] [INFO ] [Real]Absence check using 5 positive place invariants in 1 ms returned sat
[2026-05-24 13:19:40] [INFO ] [Real]Absence check using 5 positive and 2 generalized place invariants in 1 ms returned sat
[2026-05-24 13:19:40] [INFO ] [Real]Absence check using state equation in 16 ms returned sat
[2026-05-24 13:19:40] [INFO ] State equation strengthened by 8 read => feed constraints.
[2026-05-24 13:19:40] [INFO ] [Real]Added 8 Read/Feed constraints in 3 ms returned sat
[2026-05-24 13:19:40] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-24 13:19:40] [INFO ] [Nat]Absence check using 5 positive place invariants in 2 ms returned sat
[2026-05-24 13:19:40] [INFO ] [Nat]Absence check using 5 positive and 2 generalized place invariants in 0 ms returned sat
[2026-05-24 13:19:40] [INFO ] [Nat]Absence check using state equation in 11 ms returned sat
[2026-05-24 13:19:40] [INFO ] [Nat]Added 8 Read/Feed constraints in 2 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:40] [INFO ] Deduced a trap composed of 14 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 13:19:40] [INFO ] Deduced a trap composed of 15 places in 32 ms of which 3 ms to minimize.
[2026-05-24 13:19:40] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 80 ms
[2026-05-24 13:19:40] [INFO ] Computed and/alt/rep : 35/179/35 causal constraints (skipped 1 transitions) in 3 ms.
[2026-05-24 13:19:40] [INFO ] Added : 27 causal constraints over 6 iterations in 38 ms. Result :sat
Minimization took 18 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[1] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[1] Max Struct:[+inf]
Support contains 1 out of 38 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 38/38 places, 37/37 transitions.
Applied a total of 0 rules in 4 ms. Remains 38 /38 variables (removed 0) and now considering 37/37 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 4 ms. Remains : 38/38 places, 37/37 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 38/38 places, 37/37 transitions.
Applied a total of 0 rules in 1 ms. Remains 38 /38 variables (removed 0) and now considering 37/37 (removed 0) transitions.
[2026-05-24 13:19:40] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 13:19:40] [INFO ] Implicit Places using invariants in 46 ms returned []
[2026-05-24 13:19:40] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 13:19:40] [INFO ] State equation strengthened by 8 read => feed constraints.
[2026-05-24 13:19:40] [INFO ] Implicit Places using invariants and state equation in 65 ms returned []
Implicit Place search using SMT with State Equation took 113 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-24 13:19:40] [INFO ] Redundant transitions in 0 ms returned []
Running 36 sub problems to find dead transitions.
[2026-05-24 13:19:40] [INFO ] Invariant cache hit.
[2026-05-24 13:19:40] [INFO ] State equation strengthened by 8 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/37 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 36 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/37 variables, 2/4 constraints. Problems are: Problem set: 0 solved, 36 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/37 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 36 unsolved
At refinement iteration 3 (OVERLAPS) 1/38 variables, 3/7 constraints. Problems are: Problem set: 0 solved, 36 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:40] [INFO ] Deduced a trap composed of 19 places in 50 ms of which 2 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/38 variables, 1/8 constraints. Problems are: Problem set: 0 solved, 36 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/38 variables, 0/8 constraints. Problems are: Problem set: 0 solved, 36 unsolved
At refinement iteration 6 (OVERLAPS) 37/75 variables, 38/46 constraints. Problems are: Problem set: 0 solved, 36 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/75 variables, 8/54 constraints. Problems are: Problem set: 0 solved, 36 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/75 variables, 0/54 constraints. Problems are: Problem set: 0 solved, 36 unsolved
At refinement iteration 9 (OVERLAPS) 0/75 variables, 0/54 constraints. Problems are: Problem set: 0 solved, 36 unsolved
No progress, stopping.
After SMT solving in domain Real declared 75/75 variables, and 54 constraints, problems are : Problem set: 0 solved, 36 unsolved in 714 ms.
Refiners :[Positive P Invariants (semi-flows): 5/5 constraints, Generalized P Invariants (flows): 2/2 constraints, State Equation: 38/38 constraints, ReadFeed: 8/8 constraints, PredecessorRefiner: 36/36 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 36 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/37 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 36 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/37 variables, 2/4 constraints. Problems are: Problem set: 0 solved, 36 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/37 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 36 unsolved
At refinement iteration 3 (OVERLAPS) 1/38 variables, 3/7 constraints. Problems are: Problem set: 0 solved, 36 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/38 variables, 1/8 constraints. Problems are: Problem set: 0 solved, 36 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/38 variables, 0/8 constraints. Problems are: Problem set: 0 solved, 36 unsolved
At refinement iteration 6 (OVERLAPS) 37/75 variables, 38/46 constraints. Problems are: Problem set: 0 solved, 36 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/75 variables, 8/54 constraints. Problems are: Problem set: 0 solved, 36 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/75 variables, 36/90 constraints. Problems are: Problem set: 0 solved, 36 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:41] [INFO ] Deduced a trap composed of 13 places in 39 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:41] [INFO ] Deduced a trap composed of 4 places in 37 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:41] [INFO ] Deduced a trap composed of 5 places in 40 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:41] [INFO ] Deduced a trap composed of 16 places in 49 ms of which 3 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/75 variables, 4/94 constraints. Problems are: Problem set: 0 solved, 36 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:42] [INFO ] Deduced a trap along path composed of 9 places in 30 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 13:19:42] [INFO ] Deduced a trap along path composed of 18 places in 44 ms of which 1 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/75 variables, 2/96 constraints. Problems are: Problem set: 0 solved, 36 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/75 variables, 0/96 constraints. Problems are: Problem set: 0 solved, 36 unsolved
At refinement iteration 12 (OVERLAPS) 0/75 variables, 0/96 constraints. Problems are: Problem set: 0 solved, 36 unsolved
No progress, stopping.
After SMT solving in domain Int declared 75/75 variables, and 96 constraints, problems are : Problem set: 0 solved, 36 unsolved in 1617 ms.
Refiners :[Positive P Invariants (semi-flows): 5/5 constraints, Generalized P Invariants (flows): 2/2 constraints, State Equation: 38/38 constraints, ReadFeed: 8/8 constraints, PredecessorRefiner: 36/36 constraints, Known Traps: 5/5 constraints, Known Traps Along Path: 2/2 constraints]
After SMT, in 2341ms problems are : Problem set: 0 solved, 36 unsolved
Search for dead transitions found 0 dead transitions in 2342ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 2462 ms. Remains : 38/38 places, 37/37 transitions.
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {1=1, 2=1, 7=1, 13=1, 19=1, 21=1, 27=1, 31=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {1=1, 2=1, 7=1, 13=1, 19=1, 21=1, 27=1, 31=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 1579 resets, run finished after 15 ms. (steps per millisecond=666 ) properties (out of 1) seen :[1]
Current structural bounds on expressions (after cover walk) : Max Seen:[1] Max Struct:[+inf]
[2026-05-24 13:19:43] [INFO ] Flatten gal took : 17 ms
[2026-05-24 13:19:43] [INFO ] Flatten gal took : 10 ms
[2026-05-24 13:19:43] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality1626088306528014979.gal : 2 ms
[2026-05-24 13:19:43] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality8972389069206485885.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/ReachabilityCardinality1626088306528014979.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality8972389069206485885.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/ReachabilityCardinality8972389069206485885.prop.
SDD proceeding with computation,1 properties remain. new max is 4
SDD size :1 after 2
RANDOM walk for 40000 steps (6254 resets) in 146 ms. (272 steps per ms) remains 1/1 properties
SDD proceeding with computation,1 properties remain. new max is 8
SDD size :2 after 6
SDD proceeding with computation,1 properties remain. new max is 16
SDD size :6 after 11
SDD proceeding with computation,1 properties remain. new max is 32
SDD size :11 after 18
SDD proceeding with computation,1 properties remain. new max is 64
SDD size :18 after 31
SDD proceeding with computation,1 properties remain. new max is 128
SDD size :55 after 64
SDD proceeding with computation,1 properties remain. new max is 256
SDD size :64 after 192
Invariant property MIN0 does not hold.
Found states matching all0 target predicate
Will report total states built up to this point. Computation was interrupted after 257 fixpoint passes
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
petri\_inst\_inst,539,0.022062,4868,2,738,15,3643,6,0,191,2832,0
Total reachable state count : 539

Verifying 1 reachability properties.
Invariant property MIN0 does not hold.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
MIN0,104,0.022464,4996,2,326,15,3643,7,0,194,2832,0
BEST_FIRST walk for 40001 steps (3846 resets) in 56 ms. (701 steps per ms) remains 1/1 properties
ITS tools runner thread asked to quit. Dying gracefully.
Finished probabilistic random walk after 426 steps, run visited all 1 properties in 8 ms. (steps per millisecond=53 )
Probabilistic random walk after 426 steps, saw 220 distinct states, run finished after 12 ms. (steps per millisecond=35 ) properties seen :1
Current structural bounds on expressions (After reachability solving 0 queries.) : Max Seen:[1] Max Struct:[+inf]
Ending property specific reduction for DoubleExponent-PT-002-UpperBounds-01 in 5738 ms.
[2026-05-24 13:19:43] [INFO ] Flatten gal took : 4 ms
[2026-05-24 13:19:43] [INFO ] Applying decomposition
[2026-05-24 13:19:43] [INFO ] Flatten gal took : 3 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/graph17484695254721668930.txt' '-o' '/tmp/graph17484695254721668930.bin' '-w' '/tmp/graph17484695254721668930.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/louvain-linux64' '/tmp/graph17484695254721668930.bin' '-l' '-1' '-v' '-w' '/tmp/graph17484695254721668930.weights' '-q' '0' '-e' '0.001'
[2026-05-24 13:19:43] [INFO ] Decomposing Gal with order
[2026-05-24 13:19:43] [INFO ] Rewriting arrays to variables to allow decomposition.
[2026-05-24 13:19:43] [INFO ] Removed a total of 15 redundant transitions.
[2026-05-24 13:19:43] [INFO ] Flatten gal took : 71 ms
[2026-05-24 13:19:43] [INFO ] Fuse similar labels procedure discarded/fused a total of 6 labels/synchronizations in 4 ms.
[2026-05-24 13:19:43] [INFO ] Time to serialize gal into /tmp/UpperBounds12278283673014524106.gal : 2 ms
[2026-05-24 13:19:43] [INFO ] Time to serialize properties into /tmp/UpperBounds16690428914952835463.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/UpperBounds12278283673014524106.gal' '-t' 'CGAL' '-reachable-file' '/tmp/UpperBounds16690428914952835463.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 ...285
Loading property file /tmp/UpperBounds16690428914952835463.prop.
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
petri\_inst\_inst\_mod\_flat,1199,0.073399,7564,292,266,7301,1154,196,10620,81,3990,0
Total reachable state count : 1199

Verifying 2 reachability properties.
Min sum of variable value : 0
Maximum sum along a path : 1
Bounds property DoubleExponent-PT-002-UpperBounds-00 :0 <= i4.u7.p71 <= 1
FORMULA DoubleExponent-PT-002-UpperBounds-00 1 TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
DoubleExponent-PT-002-UpperBounds-00,0,0.075575,7564,1,0,7301,1154,253,10620,101,3990,206
Min sum of variable value : 0
Maximum sum along a path : 4
Bounds property DoubleExponent-PT-002-UpperBounds-01 :0 <= i4.u4.p58 <= 4
FORMULA DoubleExponent-PT-002-UpperBounds-01 4 TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
DoubleExponent-PT-002-UpperBounds-01,0,0.075983,7564,1,0,7301,1154,272,10620,104,3990,293
Total runtime 35862 ms.

BK_STOP 1779628783469

--------------------
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-002"
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-002, 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-177955700900108"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/DoubleExponent-PT-002.tgz
mv DoubleExponent-PT-002 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 ;