Execution Chart

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Trace from the execution

Formatting '/data/fkordon/mcc2025-input.r128-smll-174876524900597.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2025-input.qcow2 backing_fmt=qcow2 cluster_size=65536 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
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=====================================================================
Generated by BenchKit 2-5832
Executing tool itstools
Input is Murphy-PT-D3N050, examination is UpperBounds
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r128-smll-174876524900597
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 444K
-rw-r--r-- 1 mcc users 7.0K May 29 14:47 CTLCardinality.txt
-rw-r--r-- 1 mcc users 77K May 29 14:47 CTLCardinality.xml
-rw-r--r-- 1 mcc users 4.3K May 29 14:47 CTLFireability.txt
-rw-r--r-- 1 mcc users 35K May 29 14:47 CTLFireability.xml
-rw-r--r-- 1 mcc users 3.5K May 29 14:47 LTLCardinality.txt
-rw-r--r-- 1 mcc users 24K May 29 14:47 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.2K May 29 14:47 LTLFireability.txt
-rw-r--r-- 1 mcc users 19K May 29 14:47 LTLFireability.xml
-rw-r--r-- 1 mcc users 12K May 29 14:47 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 129K May 29 14:47 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 7.9K May 29 14:47 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 70K May 29 14:47 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K May 29 14:47 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.6K May 29 14:47 UpperBounds.xml
-rw-r--r-- 1 mcc users 5 May 29 14:32 equiv_col
-rw-r--r-- 1 mcc users 7 May 29 14:32 instance
-rw-r--r-- 1 mcc users 6 May 29 14:32 iscolored
-rw-r--r-- 1 mcc users 15K May 29 14:32 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 Murphy-PT-D3N050-UpperBounds-00
FORMULA_NAME Murphy-PT-D3N050-UpperBounds-01
FORMULA_NAME Murphy-PT-D3N050-UpperBounds-02
FORMULA_NAME Murphy-PT-D3N050-UpperBounds-03
FORMULA_NAME Murphy-PT-D3N050-UpperBounds-04
FORMULA_NAME Murphy-PT-D3N050-UpperBounds-05
FORMULA_NAME Murphy-PT-D3N050-UpperBounds-06
FORMULA_NAME Murphy-PT-D3N050-UpperBounds-07
FORMULA_NAME Murphy-PT-D3N050-UpperBounds-08
FORMULA_NAME Murphy-PT-D3N050-UpperBounds-09
FORMULA_NAME Murphy-PT-D3N050-UpperBounds-10
FORMULA_NAME Murphy-PT-D3N050-UpperBounds-11
FORMULA_NAME Murphy-PT-D3N050-UpperBounds-12
FORMULA_NAME Murphy-PT-D3N050-UpperBounds-13
FORMULA_NAME Murphy-PT-D3N050-UpperBounds-14
FORMULA_NAME Murphy-PT-D3N050-UpperBounds-15

=== Now, execution of the tool begins

BK_START 1749338309788

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=UpperBounds
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=Murphy-PT-D3N050
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
UpperBounds PT
Running Version 202505121319
[2025-06-07 23:18:32] [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]
[2025-06-07 23:18:32] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2025-06-07 23:18:32] [INFO ] Load time of PNML (sax parser for PT used): 77 ms
[2025-06-07 23:18:32] [INFO ] Transformed 24 places.
[2025-06-07 23:18:32] [INFO ] Transformed 28 transitions.
[2025-06-07 23:18:32] [INFO ] Parsed PT model containing 24 places and 28 transitions and 108 arcs in 296 ms.
Parsed 16 properties from file /home/mcc/execution/UpperBounds.xml in 15 ms.
Current structural bounds on expressions (Initially) : Max Seen:[1, 1, 0, 3, 1, 50, 50, 0, 0, 1, 3, 0, 1, 3, 50, 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:[1, 1, 0, 3, 1, 50, 50, 0, 0, 1, 3, 0, 1, 3, 50, 0] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
// Phase 1: matrix 28 rows 24 cols
[2025-06-07 23:18:32] [INFO ] Computed 5 invariants in 12 ms
Current structural bounds on expressions (after invariants) : Max Seen:[1, 1, 0, 3, 1, 50, 50, 0, 0, 1, 3, 0, 1, 3, 50, 0] Max Struct:[204, 204, +inf, +inf, 204, 204, 204, +inf, +inf, 204, +inf, +inf, 204, +inf, 204, +inf]
RANDOM walk for 10000 steps (2 resets) in 36 ms. (270 steps per ms)
BEST_FIRST walk for 160016 steps (32 resets) in 260 ms. (613 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[71, 65, 1, 3, 85, 99, 93, 2, 2, 77, 3, 2, 85, 3, 85, 2] Max Struct:[204, 204, +inf, +inf, 204, 204, 204, +inf, +inf, 204, +inf, +inf, 204, +inf, 204, +inf]
[2025-06-07 23:18:33] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-07 23:18:33] [INFO ] [Real]Absence check using 2 positive place invariants in 7 ms returned sat
[2025-06-07 23:18:33] [INFO ] [Real]Absence check using 2 positive and 3 generalized place invariants in 5 ms returned sat
[2025-06-07 23:18:33] [INFO ] [Real]Absence check using state equation in 51 ms returned sat
[2025-06-07 23:18:33] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-07 23:18:33] [INFO ] [Nat]Absence check using 2 positive place invariants in 3 ms returned sat
[2025-06-07 23:18:33] [INFO ] [Nat]Absence check using 2 positive and 3 generalized place invariants in 2 ms returned sat
[2025-06-07 23:18:33] [INFO ] [Nat]Absence check using state equation in 53 ms returned sat
[2025-06-07 23:18:33] [INFO ] State equation strengthened by 8 read => feed constraints.
[2025-06-07 23:18:33] [INFO ] [Nat]Added 8 Read/Feed constraints in 6 ms returned sat
[2025-06-07 23:18:33] [INFO ] Computed and/alt/rep : 16/40/16 causal constraints (skipped 0 transitions) in 14 ms.
[2025-06-07 23:18:33] [INFO ] Added : 0 causal constraints over 0 iterations in 41 ms. Result :sat
Minimization took 49 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-07 23:18:33] [INFO ] [Real]Absence check using 2 positive place invariants in 3 ms returned sat
[2025-06-07 23:18:33] [INFO ] [Real]Absence check using 2 positive and 3 generalized place invariants in 2 ms returned sat
[2025-06-07 23:18:33] [INFO ] [Real]Absence check using state equation in 28 ms returned sat
[2025-06-07 23:18:33] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-07 23:18:33] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-07 23:18:33] [INFO ] [Nat]Absence check using 2 positive and 3 generalized place invariants in 2 ms returned sat
[2025-06-07 23:18:33] [INFO ] [Nat]Absence check using state equation in 38 ms returned sat
[2025-06-07 23:18:33] [INFO ] [Nat]Added 8 Read/Feed constraints in 5 ms returned sat
[2025-06-07 23:18:33] [INFO ] Computed and/alt/rep : 16/40/16 causal constraints (skipped 0 transitions) in 9 ms.
[2025-06-07 23:18:33] [INFO ] Added : 0 causal constraints over 0 iterations in 18 ms. Result :sat
Minimization took 48 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-07 23:18:33] [INFO ] [Real]Absence check using 2 positive place invariants in 3 ms returned sat
[2025-06-07 23:18:33] [INFO ] [Real]Absence check using 2 positive and 3 generalized place invariants in 2 ms returned sat
[2025-06-07 23:18:34] [INFO ] [Real]Absence check using state equation in 24 ms returned sat
[2025-06-07 23:18:34] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-07 23:18:34] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-07 23:18:34] [INFO ] [Nat]Absence check using 2 positive and 3 generalized place invariants in 2 ms returned sat
[2025-06-07 23:18:34] [INFO ] [Nat]Absence check using state equation in 40 ms returned sat
[2025-06-07 23:18:34] [INFO ] [Nat]Added 8 Read/Feed constraints in 5 ms returned sat
[2025-06-07 23:18:34] [INFO ] Computed and/alt/rep : 16/40/16 causal constraints (skipped 0 transitions) in 7 ms.
[2025-06-07 23:18:34] [INFO ] Added : 1 causal constraints over 1 iterations in 35 ms. Result :sat
Minimization took 14 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-07 23:18:34] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-07 23:18:34] [INFO ] [Real]Absence check using 2 positive and 3 generalized place invariants in 1 ms returned sat
[2025-06-07 23:18:34] [INFO ] [Real]Absence check using state equation in 26 ms returned sat
[2025-06-07 23:18:34] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-07 23:18:34] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-07 23:18:34] [INFO ] [Nat]Absence check using 2 positive and 3 generalized place invariants in 1 ms returned sat
[2025-06-07 23:18:34] [INFO ] [Nat]Absence check using state equation in 24 ms returned sat
[2025-06-07 23:18:34] [INFO ] [Nat]Added 8 Read/Feed constraints in 3 ms returned sat
[2025-06-07 23:18:34] [INFO ] Computed and/alt/rep : 16/40/16 causal constraints (skipped 0 transitions) in 9 ms.
[2025-06-07 23:18:34] [INFO ] Added : 3 causal constraints over 1 iterations in 25 ms. Result :sat
Minimization took 14 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-07 23:18:34] [INFO ] [Real]Absence check using 2 positive place invariants in 1 ms returned sat
[2025-06-07 23:18:34] [INFO ] [Real]Absence check using 2 positive and 3 generalized place invariants in 2 ms returned sat
[2025-06-07 23:18:34] [INFO ] [Real]Absence check using state equation in 26 ms returned sat
[2025-06-07 23:18:34] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-07 23:18:34] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-07 23:18:34] [INFO ] [Nat]Absence check using 2 positive and 3 generalized place invariants in 2 ms returned sat
[2025-06-07 23:18:34] [INFO ] [Nat]Absence check using state equation in 28 ms returned sat
[2025-06-07 23:18:34] [INFO ] [Nat]Added 8 Read/Feed constraints in 4 ms returned sat
[2025-06-07 23:18:34] [INFO ] Computed and/alt/rep : 16/40/16 causal constraints (skipped 0 transitions) in 7 ms.
[2025-06-07 23:18:34] [INFO ] Added : 0 causal constraints over 0 iterations in 17 ms. Result :sat
Minimization took 77 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-07 23:18:34] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-07 23:18:34] [INFO ] [Real]Absence check using 2 positive and 3 generalized place invariants in 2 ms returned sat
[2025-06-07 23:18:34] [INFO ] [Real]Absence check using state equation in 40 ms returned sat
[2025-06-07 23:18:34] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-07 23:18:34] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-07 23:18:34] [INFO ] [Nat]Absence check using 2 positive and 3 generalized place invariants in 2 ms returned sat
[2025-06-07 23:18:34] [INFO ] [Nat]Absence check using state equation in 31 ms returned sat
[2025-06-07 23:18:34] [INFO ] [Nat]Added 8 Read/Feed constraints in 4 ms returned sat
[2025-06-07 23:18:34] [INFO ] Computed and/alt/rep : 16/40/16 causal constraints (skipped 0 transitions) in 6 ms.
[2025-06-07 23:18:34] [INFO ] Added : 0 causal constraints over 0 iterations in 14 ms. Result :sat
Minimization took 75 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-07 23:18:34] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-07 23:18:34] [INFO ] [Real]Absence check using 2 positive and 3 generalized place invariants in 1 ms returned sat
[2025-06-07 23:18:34] [INFO ] [Real]Absence check using state equation in 20 ms returned sat
[2025-06-07 23:18:34] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-07 23:18:34] [INFO ] [Nat]Absence check using 2 positive place invariants in 10 ms returned sat
[2025-06-07 23:18:34] [INFO ] [Nat]Absence check using 2 positive and 3 generalized place invariants in 2 ms returned sat
[2025-06-07 23:18:35] [INFO ] [Nat]Absence check using state equation in 32 ms returned sat
[2025-06-07 23:18:35] [INFO ] [Nat]Added 8 Read/Feed constraints in 5 ms returned sat
[2025-06-07 23:18:35] [INFO ] Computed and/alt/rep : 16/40/16 causal constraints (skipped 0 transitions) in 8 ms.
[2025-06-07 23:18:35] [INFO ] Added : 0 causal constraints over 0 iterations in 19 ms. Result :sat
Minimization took 66 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-07 23:18:35] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-07 23:18:35] [INFO ] [Real]Absence check using 2 positive and 3 generalized place invariants in 1 ms returned sat
[2025-06-07 23:18:35] [INFO ] [Real]Absence check using state equation in 26 ms returned sat
[2025-06-07 23:18:35] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-07 23:18:35] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-07 23:18:35] [INFO ] [Nat]Absence check using 2 positive and 3 generalized place invariants in 7 ms returned sat
[2025-06-07 23:18:35] [INFO ] [Nat]Absence check using state equation in 32 ms returned sat
[2025-06-07 23:18:35] [INFO ] [Nat]Added 8 Read/Feed constraints in 4 ms returned sat
[2025-06-07 23:18:35] [INFO ] Computed and/alt/rep : 16/40/16 causal constraints (skipped 0 transitions) in 8 ms.
[2025-06-07 23:18:35] [INFO ] Added : 2 causal constraints over 1 iterations in 21 ms. Result :sat
Minimization took 12 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-07 23:18:35] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-07 23:18:35] [INFO ] [Real]Absence check using 2 positive and 3 generalized place invariants in 2 ms returned sat
[2025-06-07 23:18:35] [INFO ] [Real]Absence check using state equation in 24 ms returned sat
[2025-06-07 23:18:35] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-07 23:18:35] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-07 23:18:35] [INFO ] [Nat]Absence check using 2 positive and 3 generalized place invariants in 1 ms returned sat
[2025-06-07 23:18:35] [INFO ] [Nat]Absence check using state equation in 22 ms returned sat
[2025-06-07 23:18:35] [INFO ] [Nat]Added 8 Read/Feed constraints in 3 ms returned sat
[2025-06-07 23:18:35] [INFO ] Computed and/alt/rep : 16/40/16 causal constraints (skipped 0 transitions) in 4 ms.
[2025-06-07 23:18:35] [INFO ] Added : 2 causal constraints over 1 iterations in 16 ms. Result :sat
Minimization took 13 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-07 23:18:35] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-07 23:18:35] [INFO ] [Real]Absence check using 2 positive and 3 generalized place invariants in 2 ms returned sat
[2025-06-07 23:18:35] [INFO ] [Real]Absence check using state equation in 18 ms returned sat
[2025-06-07 23:18:35] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-07 23:18:35] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-07 23:18:35] [INFO ] [Nat]Absence check using 2 positive and 3 generalized place invariants in 2 ms returned sat
[2025-06-07 23:18:35] [INFO ] [Nat]Absence check using state equation in 18 ms returned sat
[2025-06-07 23:18:35] [INFO ] [Nat]Added 8 Read/Feed constraints in 4 ms returned sat
[2025-06-07 23:18:35] [INFO ] Computed and/alt/rep : 16/40/16 causal constraints (skipped 0 transitions) in 5 ms.
[2025-06-07 23:18:35] [INFO ] Added : 0 causal constraints over 0 iterations in 14 ms. Result :sat
Minimization took 67 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-07 23:18:35] [INFO ] [Real]Absence check using 2 positive place invariants in 3 ms returned sat
[2025-06-07 23:18:35] [INFO ] [Real]Absence check using 2 positive and 3 generalized place invariants in 2 ms returned sat
[2025-06-07 23:18:35] [INFO ] [Real]Absence check using state equation in 21 ms returned sat
[2025-06-07 23:18:35] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-07 23:18:35] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-07 23:18:35] [INFO ] [Nat]Absence check using 2 positive and 3 generalized place invariants in 1 ms returned sat
[2025-06-07 23:18:35] [INFO ] [Nat]Absence check using state equation in 24 ms returned sat
[2025-06-07 23:18:35] [INFO ] [Nat]Added 8 Read/Feed constraints in 4 ms returned sat
[2025-06-07 23:18:35] [INFO ] Computed and/alt/rep : 16/40/16 causal constraints (skipped 0 transitions) in 5 ms.
[2025-06-07 23:18:35] [INFO ] Added : 3 causal constraints over 1 iterations in 18 ms. Result :sat
Minimization took 11 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-07 23:18:35] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-07 23:18:35] [INFO ] [Real]Absence check using 2 positive and 3 generalized place invariants in 1 ms returned sat
[2025-06-07 23:18:35] [INFO ] [Real]Absence check using state equation in 19 ms returned sat
[2025-06-07 23:18:35] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-07 23:18:35] [INFO ] [Nat]Absence check using 2 positive place invariants in 3 ms returned sat
[2025-06-07 23:18:35] [INFO ] [Nat]Absence check using 2 positive and 3 generalized place invariants in 1 ms returned sat
[2025-06-07 23:18:35] [INFO ] [Nat]Absence check using state equation in 22 ms returned sat
[2025-06-07 23:18:35] [INFO ] [Nat]Added 8 Read/Feed constraints in 5 ms returned sat
[2025-06-07 23:18:35] [INFO ] Computed and/alt/rep : 16/40/16 causal constraints (skipped 0 transitions) in 5 ms.
[2025-06-07 23:18:35] [INFO ] Added : 2 causal constraints over 1 iterations in 19 ms. Result :sat
Minimization took 13 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-07 23:18:36] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-07 23:18:36] [INFO ] [Real]Absence check using 2 positive and 3 generalized place invariants in 2 ms returned sat
[2025-06-07 23:18:36] [INFO ] [Real]Absence check using state equation in 16 ms returned sat
[2025-06-07 23:18:36] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-07 23:18:36] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-07 23:18:36] [INFO ] [Nat]Absence check using 2 positive and 3 generalized place invariants in 2 ms returned sat
[2025-06-07 23:18:36] [INFO ] [Nat]Absence check using state equation in 22 ms returned sat
[2025-06-07 23:18:36] [INFO ] [Nat]Added 8 Read/Feed constraints in 4 ms returned sat
[2025-06-07 23:18:36] [INFO ] Computed and/alt/rep : 16/40/16 causal constraints (skipped 0 transitions) in 5 ms.
[2025-06-07 23:18:36] [INFO ] Added : 0 causal constraints over 0 iterations in 13 ms. Result :sat
Minimization took 57 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-07 23:18:36] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-07 23:18:36] [INFO ] [Real]Absence check using 2 positive and 3 generalized place invariants in 1 ms returned sat
[2025-06-07 23:18:36] [INFO ] [Real]Absence check using state equation in 17 ms returned sat
[2025-06-07 23:18:36] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-07 23:18:36] [INFO ] [Nat]Absence check using 2 positive place invariants in 3 ms returned sat
[2025-06-07 23:18:36] [INFO ] [Nat]Absence check using 2 positive and 3 generalized place invariants in 2 ms returned sat
[2025-06-07 23:18:36] [INFO ] [Nat]Absence check using state equation in 22 ms returned sat
[2025-06-07 23:18:36] [INFO ] [Nat]Added 8 Read/Feed constraints in 2 ms returned sat
[2025-06-07 23:18:36] [INFO ] Computed and/alt/rep : 16/40/16 causal constraints (skipped 0 transitions) in 4 ms.
[2025-06-07 23:18:36] [INFO ] Added : 3 causal constraints over 1 iterations in 17 ms. Result :sat
Minimization took 13 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-07 23:18:36] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-07 23:18:36] [INFO ] [Real]Absence check using 2 positive and 3 generalized place invariants in 1 ms returned sat
[2025-06-07 23:18:36] [INFO ] [Real]Absence check using state equation in 20 ms returned sat
[2025-06-07 23:18:36] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-07 23:18:36] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-07 23:18:36] [INFO ] [Nat]Absence check using 2 positive and 3 generalized place invariants in 3 ms returned sat
[2025-06-07 23:18:36] [INFO ] [Nat]Absence check using state equation in 21 ms returned sat
[2025-06-07 23:18:36] [INFO ] [Nat]Added 8 Read/Feed constraints in 5 ms returned sat
[2025-06-07 23:18:36] [INFO ] Computed and/alt/rep : 16/40/16 causal constraints (skipped 0 transitions) in 4 ms.
[2025-06-07 23:18:36] [INFO ] Added : 0 causal constraints over 0 iterations in 10 ms. Result :sat
Minimization took 59 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-07 23:18:36] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-07 23:18:36] [INFO ] [Real]Absence check using 2 positive and 3 generalized place invariants in 1 ms returned sat
[2025-06-07 23:18:36] [INFO ] [Real]Absence check using state equation in 17 ms returned sat
[2025-06-07 23:18:36] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-07 23:18:36] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-07 23:18:36] [INFO ] [Nat]Absence check using 2 positive and 3 generalized place invariants in 2 ms returned sat
[2025-06-07 23:18:36] [INFO ] [Nat]Absence check using state equation in 20 ms returned sat
[2025-06-07 23:18:36] [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
[2025-06-07 23:18:36] [INFO ] Deduced a trap composed of 2 places in 53 ms of which 16 ms to minimize.
[2025-06-07 23:18:36] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 73 ms
[2025-06-07 23:18:36] [INFO ] Computed and/alt/rep : 16/40/16 causal constraints (skipped 0 transitions) in 4 ms.
[2025-06-07 23:18:36] [INFO ] Added : 3 causal constraints over 1 iterations in 15 ms. Result :sat
Minimization took 8 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[71, 65, 1, 3, 85, 99, 93, 2, 2, 77, 3, 2, 85, 3, 85, 2] Max Struct:[204, 204, +inf, +inf, 204, 204, 204, +inf, +inf, 204, +inf, +inf, 204, +inf, 204, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[199, 199, 1, 3, 201, 126, 177, 2, 2, 201, 3, 2, 201, 3, 197, 2] Max Struct:[204, 204, +inf, +inf, 204, 204, 204, +inf, +inf, 204, +inf, +inf, 204, +inf, 204, +inf]
Support contains 16 out of 24 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 24/24 places, 28/28 transitions.
Applied a total of 0 rules in 15 ms. Remains 24 /24 variables (removed 0) and now considering 28/28 (removed 0) transitions.
Running 16 sub problems to find dead transitions.
[2025-06-07 23:18:37] [INFO ] Invariant cache hit.
[2025-06-07 23:18:37] [INFO ] State equation strengthened by 8 read => feed constraints.
Starting Z3 with timeout 20.0 s and query timeout 2000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/16 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/16 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 2 (OVERLAPS) 4/20 variables, 2/5 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/20 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 4 (OVERLAPS) 28/48 variables, 20/25 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/48 variables, 8/33 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/48 variables, 0/33 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 7 (OVERLAPS) 4/52 variables, 4/37 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/52 variables, 0/37 constraints. Problems are: Problem set: 0 solved, 16 unsolved
All remaining problems are real, not stopping.
At refinement iteration 9 (OVERLAPS) 0/52 variables, 0/37 constraints. Problems are: Problem set: 0 solved, 16 unsolved
No progress, stopping.
After SMT solving in domain Real declared 52/52 variables, and 37 constraints, problems are : Problem set: 0 solved, 16 unsolved in 708 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 3/3 constraints, State Equation: 24/24 constraints, ReadFeed: 8/8 constraints, PredecessorRefiner: 16/16 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 16 unsolved
Starting Z3 with timeout 20.0 s and query timeout 2000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/16 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/16 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 2 (OVERLAPS) 4/20 variables, 2/5 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/20 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 4 (OVERLAPS) 28/48 variables, 20/25 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/48 variables, 8/33 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/48 variables, 0/33 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 7 (OVERLAPS) 4/52 variables, 4/37 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/52 variables, 16/53 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/52 variables, 0/53 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 10 (OVERLAPS) 0/52 variables, 0/53 constraints. Problems are: Problem set: 0 solved, 16 unsolved
No progress, stopping.
After SMT solving in domain Int declared 52/52 variables, and 53 constraints, problems are : Problem set: 0 solved, 16 unsolved in 685 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 3/3 constraints, State Equation: 24/24 constraints, ReadFeed: 8/8 constraints, PredecessorRefiner: 16/16 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 1442ms problems are : Problem set: 0 solved, 16 unsolved
Search for dead transitions found 0 dead transitions in 1453ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 1486 ms. Remains : 24/24 places, 28/28 transitions.
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {13=1, 17=1, 25=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {13=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 70 ms. (steps per millisecond=142 ) properties (out of 16) seen :[76, 73, 1, 3, 91, 56, 55, 2, 2, 62, 3, 2, 91, 3, 55, 2]
Current structural bounds on expressions (after cover walk) : Max Seen:[199, 199, 1, 3, 201, 126, 177, 2, 2, 201, 3, 2, 201, 3, 197, 2] Max Struct:[204, 204, +inf, +inf, 204, 204, 204, +inf, +inf, 204, +inf, +inf, 204, +inf, 204, +inf]
[2025-06-07 23:18:39] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[199, 199, 1, 3, 201, 126, 177, 2, 2, 201, 3, 2, 201, 3, 197, 2] Max Struct:[204, 204, +inf, +inf, 204, 204, 204, +inf, +inf, 204, +inf, +inf, 204, +inf, 204, +inf]
RANDOM walk for 1000001 steps (2 resets) in 746 ms. (1338 steps per ms)
BEST_FIRST walk for 16000012 steps (32 resets) in 10183 ms. (1571 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[201, 201, 1, 3, 201, 126, 177, 2, 2, 201, 3, 2, 201, 3, 197, 2] Max Struct:[204, 204, +inf, +inf, 204, 204, 204, +inf, +inf, 204, +inf, +inf, 204, +inf, 204, +inf]
[2025-06-07 23:18:50] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:18:50] [INFO ] [Real]Absence check using 2 positive place invariants in 1 ms returned sat
[2025-06-07 23:18:50] [INFO ] [Real]Absence check using 2 positive and 3 generalized place invariants in 1 ms returned sat
[2025-06-07 23:18:50] [INFO ] [Real]Absence check using state equation in 14 ms returned sat
[2025-06-07 23:18:50] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:18:50] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-07 23:18:50] [INFO ] [Nat]Absence check using 2 positive and 3 generalized place invariants in 1 ms returned sat
[2025-06-07 23:18:50] [INFO ] [Nat]Absence check using state equation in 11 ms returned unsat
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:18:50] [INFO ] [Real]Absence check using 2 positive place invariants in 1 ms returned sat
[2025-06-07 23:18:50] [INFO ] [Real]Absence check using 2 positive and 3 generalized place invariants in 1 ms returned sat
[2025-06-07 23:18:50] [INFO ] [Real]Absence check using state equation in 12 ms returned sat
[2025-06-07 23:18:50] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:18:50] [INFO ] [Nat]Absence check using 2 positive place invariants in 1 ms returned sat
[2025-06-07 23:18:50] [INFO ] [Nat]Absence check using 2 positive and 3 generalized place invariants in 2 ms returned sat
[2025-06-07 23:18:50] [INFO ] [Nat]Absence check using state equation in 13 ms returned unsat
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:18:50] [INFO ] [Real]Absence check using 2 positive place invariants in 1 ms returned sat
[2025-06-07 23:18:50] [INFO ] [Real]Absence check using 2 positive and 3 generalized place invariants in 1 ms returned sat
[2025-06-07 23:18:50] [INFO ] [Real]Absence check using state equation in 13 ms returned sat
[2025-06-07 23:18:50] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:18:50] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-07 23:18:50] [INFO ] [Nat]Absence check using 2 positive and 3 generalized place invariants in 2 ms returned sat
[2025-06-07 23:18:50] [INFO ] [Nat]Absence check using state equation in 13 ms returned sat
[2025-06-07 23:18:50] [INFO ] State equation strengthened by 8 read => feed constraints.
[2025-06-07 23:18:50] [INFO ] [Nat]Added 8 Read/Feed constraints in 3 ms returned sat
[2025-06-07 23:18:50] [INFO ] Computed and/alt/rep : 16/40/16 causal constraints (skipped 0 transitions) in 3 ms.
[2025-06-07 23:18:50] [INFO ] Added : 1 causal constraints over 1 iterations in 11 ms. Result :sat
Minimization took 8 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:18:50] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-07 23:18:50] [INFO ] [Real]Absence check using 2 positive and 3 generalized place invariants in 1 ms returned sat
[2025-06-07 23:18:50] [INFO ] [Real]Absence check using state equation in 14 ms returned sat
[2025-06-07 23:18:50] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:18:50] [INFO ] [Nat]Absence check using 2 positive place invariants in 1 ms returned sat
[2025-06-07 23:18:50] [INFO ] [Nat]Absence check using 2 positive and 3 generalized place invariants in 1 ms returned sat
[2025-06-07 23:18:50] [INFO ] [Nat]Absence check using state equation in 12 ms returned sat
[2025-06-07 23:18:50] [INFO ] [Nat]Added 8 Read/Feed constraints in 6 ms returned sat
[2025-06-07 23:18:50] [INFO ] Computed and/alt/rep : 16/40/16 causal constraints (skipped 0 transitions) in 3 ms.
[2025-06-07 23:18:50] [INFO ] Added : 3 causal constraints over 1 iterations in 14 ms. Result :sat
Minimization took 10 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:18:50] [INFO ] [Real]Absence check using 2 positive place invariants in 1 ms returned sat
[2025-06-07 23:18:50] [INFO ] [Real]Absence check using 2 positive and 3 generalized place invariants in 1 ms returned sat
[2025-06-07 23:18:50] [INFO ] [Real]Absence check using state equation in 22 ms returned sat
[2025-06-07 23:18:50] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:18:50] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-07 23:18:50] [INFO ] [Nat]Absence check using 2 positive and 3 generalized place invariants in 2 ms returned sat
[2025-06-07 23:18:50] [INFO ] [Nat]Absence check using state equation in 15 ms returned unsat
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:18:50] [INFO ] [Real]Absence check using 2 positive place invariants in 1 ms returned sat
[2025-06-07 23:18:50] [INFO ] [Real]Absence check using 2 positive and 3 generalized place invariants in 2 ms returned sat
[2025-06-07 23:18:50] [INFO ] [Real]Absence check using state equation in 14 ms returned sat
[2025-06-07 23:18:50] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:18:50] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-07 23:18:50] [INFO ] [Nat]Absence check using 2 positive and 3 generalized place invariants in 1 ms returned sat
[2025-06-07 23:18:50] [INFO ] [Nat]Absence check using state equation in 14 ms returned sat
[2025-06-07 23:18:50] [INFO ] [Nat]Added 8 Read/Feed constraints in 3 ms returned sat
[2025-06-07 23:18:50] [INFO ] Computed and/alt/rep : 16/40/16 causal constraints (skipped 0 transitions) in 3 ms.
[2025-06-07 23:18:50] [INFO ] Added : 2 causal constraints over 1 iterations in 13 ms. Result :sat
Minimization took 44 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:18:50] [INFO ] [Real]Absence check using 2 positive place invariants in 1 ms returned sat
[2025-06-07 23:18:50] [INFO ] [Real]Absence check using 2 positive and 3 generalized place invariants in 1 ms returned sat
[2025-06-07 23:18:50] [INFO ] [Real]Absence check using state equation in 16 ms returned sat
[2025-06-07 23:18:50] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:18:50] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-07 23:18:50] [INFO ] [Nat]Absence check using 2 positive and 3 generalized place invariants in 2 ms returned sat
[2025-06-07 23:18:50] [INFO ] [Nat]Absence check using state equation in 21 ms returned sat
[2025-06-07 23:18:51] [INFO ] [Nat]Added 8 Read/Feed constraints in 4 ms returned sat
[2025-06-07 23:18:51] [INFO ] Computed and/alt/rep : 16/40/16 causal constraints (skipped 0 transitions) in 5 ms.
[2025-06-07 23:18:51] [INFO ] Added : 1 causal constraints over 1 iterations in 18 ms. Result :sat
Minimization took 52 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:18:51] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-07 23:18:51] [INFO ] [Real]Absence check using 2 positive and 3 generalized place invariants in 5 ms returned sat
[2025-06-07 23:18:51] [INFO ] [Real]Absence check using state equation in 19 ms returned sat
[2025-06-07 23:18:51] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:18:51] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-07 23:18:51] [INFO ] [Nat]Absence check using 2 positive and 3 generalized place invariants in 2 ms returned sat
[2025-06-07 23:18:51] [INFO ] [Nat]Absence check using state equation in 21 ms returned sat
[2025-06-07 23:18:51] [INFO ] [Nat]Added 8 Read/Feed constraints in 3 ms returned sat
[2025-06-07 23:18:51] [INFO ] Computed and/alt/rep : 16/40/16 causal constraints (skipped 0 transitions) in 6 ms.
[2025-06-07 23:18:51] [INFO ] Added : 2 causal constraints over 1 iterations in 18 ms. Result :sat
Minimization took 13 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:18:51] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-07 23:18:51] [INFO ] [Real]Absence check using 2 positive and 3 generalized place invariants in 2 ms returned sat
[2025-06-07 23:18:51] [INFO ] [Real]Absence check using state equation in 22 ms returned sat
[2025-06-07 23:18:51] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:18:51] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-07 23:18:51] [INFO ] [Nat]Absence check using 2 positive and 3 generalized place invariants in 2 ms returned sat
[2025-06-07 23:18:51] [INFO ] [Nat]Absence check using state equation in 21 ms returned sat
[2025-06-07 23:18:51] [INFO ] [Nat]Added 8 Read/Feed constraints in 4 ms returned sat
[2025-06-07 23:18:51] [INFO ] Computed and/alt/rep : 16/40/16 causal constraints (skipped 0 transitions) in 5 ms.
[2025-06-07 23:18:51] [INFO ] Added : 2 causal constraints over 1 iterations in 18 ms. Result :sat
Minimization took 13 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:18:51] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-07 23:18:51] [INFO ] [Real]Absence check using 2 positive and 3 generalized place invariants in 2 ms returned sat
[2025-06-07 23:18:51] [INFO ] [Real]Absence check using state equation in 22 ms returned sat
[2025-06-07 23:18:51] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:18:51] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-07 23:18:51] [INFO ] [Nat]Absence check using 2 positive and 3 generalized place invariants in 2 ms returned sat
[2025-06-07 23:18:51] [INFO ] [Nat]Absence check using state equation in 30 ms returned unsat
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:18:51] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-07 23:18:51] [INFO ] [Real]Absence check using 2 positive and 3 generalized place invariants in 2 ms returned sat
[2025-06-07 23:18:51] [INFO ] [Real]Absence check using state equation in 42 ms returned sat
[2025-06-07 23:18:51] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:18:51] [INFO ] [Nat]Absence check using 2 positive place invariants in 1 ms returned sat
[2025-06-07 23:18:51] [INFO ] [Nat]Absence check using 2 positive and 3 generalized place invariants in 1 ms returned sat
[2025-06-07 23:18:51] [INFO ] [Nat]Absence check using state equation in 20 ms returned sat
[2025-06-07 23:18:51] [INFO ] [Nat]Added 8 Read/Feed constraints in 4 ms returned sat
[2025-06-07 23:18:51] [INFO ] Computed and/alt/rep : 16/40/16 causal constraints (skipped 0 transitions) in 5 ms.
[2025-06-07 23:18:51] [INFO ] Added : 3 causal constraints over 1 iterations in 18 ms. Result :sat
Minimization took 11 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:18:51] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-07 23:18:51] [INFO ] [Real]Absence check using 2 positive and 3 generalized place invariants in 1 ms returned sat
[2025-06-07 23:18:51] [INFO ] [Real]Absence check using state equation in 19 ms returned sat
[2025-06-07 23:18:51] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:18:51] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-07 23:18:51] [INFO ] [Nat]Absence check using 2 positive and 3 generalized place invariants in 2 ms returned sat
[2025-06-07 23:18:51] [INFO ] [Nat]Absence check using state equation in 20 ms returned sat
[2025-06-07 23:18:51] [INFO ] [Nat]Added 8 Read/Feed constraints in 4 ms returned sat
[2025-06-07 23:18:51] [INFO ] Computed and/alt/rep : 16/40/16 causal constraints (skipped 0 transitions) in 4 ms.
[2025-06-07 23:18:51] [INFO ] Added : 2 causal constraints over 1 iterations in 16 ms. Result :sat
Minimization took 12 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:18:51] [INFO ] [Real]Absence check using 2 positive place invariants in 3 ms returned sat
[2025-06-07 23:18:51] [INFO ] [Real]Absence check using 2 positive and 3 generalized place invariants in 2 ms returned sat
[2025-06-07 23:18:51] [INFO ] [Real]Absence check using state equation in 19 ms returned sat
[2025-06-07 23:18:51] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:18:51] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-07 23:18:51] [INFO ] [Nat]Absence check using 2 positive and 3 generalized place invariants in 1 ms returned sat
[2025-06-07 23:18:51] [INFO ] [Nat]Absence check using state equation in 16 ms returned unsat
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:18:51] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-07 23:18:51] [INFO ] [Real]Absence check using 2 positive and 3 generalized place invariants in 2 ms returned sat
[2025-06-07 23:18:52] [INFO ] [Real]Absence check using state equation in 18 ms returned sat
[2025-06-07 23:18:52] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:18:52] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-07 23:18:52] [INFO ] [Nat]Absence check using 2 positive and 3 generalized place invariants in 2 ms returned sat
[2025-06-07 23:18:52] [INFO ] [Nat]Absence check using state equation in 18 ms returned sat
[2025-06-07 23:18:52] [INFO ] [Nat]Added 8 Read/Feed constraints in 3 ms returned sat
[2025-06-07 23:18:52] [INFO ] Computed and/alt/rep : 16/40/16 causal constraints (skipped 0 transitions) in 4 ms.
[2025-06-07 23:18:52] [INFO ] Added : 3 causal constraints over 1 iterations in 16 ms. Result :sat
Minimization took 13 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:18:52] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-07 23:18:52] [INFO ] [Real]Absence check using 2 positive and 3 generalized place invariants in 2 ms returned sat
[2025-06-07 23:18:52] [INFO ] [Real]Absence check using state equation in 25 ms returned sat
[2025-06-07 23:18:52] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:18:52] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-07 23:18:52] [INFO ] [Nat]Absence check using 2 positive and 3 generalized place invariants in 2 ms returned sat
[2025-06-07 23:18:52] [INFO ] [Nat]Absence check using state equation in 20 ms returned sat
[2025-06-07 23:18:52] [INFO ] [Nat]Added 8 Read/Feed constraints in 21 ms returned sat
[2025-06-07 23:18:52] [INFO ] Computed and/alt/rep : 16/40/16 causal constraints (skipped 0 transitions) in 4 ms.
[2025-06-07 23:18:52] [INFO ] Added : 2 causal constraints over 1 iterations in 17 ms. Result :sat
Minimization took 27 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:18:52] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-07 23:18:52] [INFO ] [Real]Absence check using 2 positive and 3 generalized place invariants in 2 ms returned sat
[2025-06-07 23:18:52] [INFO ] [Real]Absence check using state equation in 18 ms returned sat
[2025-06-07 23:18:52] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:18:52] [INFO ] [Nat]Absence check using 2 positive place invariants in 3 ms returned sat
[2025-06-07 23:18:52] [INFO ] [Nat]Absence check using 2 positive and 3 generalized place invariants in 2 ms returned sat
[2025-06-07 23:18:52] [INFO ] [Nat]Absence check using state equation in 18 ms returned sat
[2025-06-07 23:18:52] [INFO ] [Nat]Added 8 Read/Feed constraints in 5 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-07 23:18:52] [INFO ] Deduced a trap composed of 2 places in 31 ms of which 3 ms to minimize.
[2025-06-07 23:18:52] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 38 ms
[2025-06-07 23:18:52] [INFO ] Computed and/alt/rep : 16/40/16 causal constraints (skipped 0 transitions) in 5 ms.
[2025-06-07 23:18:52] [INFO ] Added : 3 causal constraints over 1 iterations in 17 ms. Result :sat
Minimization took 13 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[201, 201, 1, 3, 201, 126, 177, 2, 2, 201, 3, 2, 201, 3, 197, 2] Max Struct:[201, 201, +inf, +inf, 201, 204, 204, +inf, +inf, 201, +inf, +inf, 201, +inf, 204, +inf]
FORMULA Murphy-PT-D3N050-UpperBounds-12 201 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA Murphy-PT-D3N050-UpperBounds-09 201 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA Murphy-PT-D3N050-UpperBounds-04 201 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA Murphy-PT-D3N050-UpperBounds-01 201 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA Murphy-PT-D3N050-UpperBounds-00 201 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[1, 3, 185, 179, 2, 2, 3, 2, 3, 197, 2] Max Struct:[+inf, +inf, 204, 204, +inf, +inf, +inf, +inf, +inf, 204, +inf]
Support contains 11 out of 24 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 24/24 places, 28/28 transitions.
Applied a total of 0 rules in 3 ms. Remains 24 /24 variables (removed 0) and now considering 28/28 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 3 ms. Remains : 24/24 places, 28/28 transitions.
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {13=1, 17=1, 25=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {13=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 67 ms. (steps per millisecond=149 ) properties (out of 11) seen :[1, 3, 50, 55, 2, 2, 3, 2, 3, 52, 2]
Current structural bounds on expressions (after cover walk) : Max Seen:[1, 3, 185, 179, 2, 2, 3, 2, 3, 197, 2] Max Struct:[+inf, +inf, 204, 204, +inf, +inf, +inf, +inf, +inf, 204, +inf]
[2025-06-07 23:18:52] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[1, 3, 185, 179, 2, 2, 3, 2, 3, 197, 2] Max Struct:[+inf, +inf, 204, 204, +inf, +inf, +inf, +inf, +inf, 204, +inf]
RANDOM walk for 1000037 steps (2 resets) in 731 ms. (1366 steps per ms)
BEST_FIRST walk for 11000010 steps (22 resets) in 5523 ms. (1991 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[1, 3, 185, 179, 2, 2, 3, 2, 3, 197, 2] Max Struct:[+inf, +inf, 204, 204, +inf, +inf, +inf, +inf, +inf, 204, +inf]
[2025-06-07 23:18:59] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:18:59] [INFO ] [Real]Absence check using 2 positive place invariants in 1 ms returned sat
[2025-06-07 23:18:59] [INFO ] [Real]Absence check using 2 positive and 3 generalized place invariants in 1 ms returned sat
[2025-06-07 23:18:59] [INFO ] [Real]Absence check using state equation in 13 ms returned sat
[2025-06-07 23:18:59] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:18:59] [INFO ] [Nat]Absence check using 2 positive place invariants in 1 ms returned sat
[2025-06-07 23:18:59] [INFO ] [Nat]Absence check using 2 positive and 3 generalized place invariants in 1 ms returned sat
[2025-06-07 23:18:59] [INFO ] [Nat]Absence check using state equation in 14 ms returned sat
[2025-06-07 23:18:59] [INFO ] State equation strengthened by 8 read => feed constraints.
[2025-06-07 23:18:59] [INFO ] [Nat]Added 8 Read/Feed constraints in 3 ms returned sat
[2025-06-07 23:18:59] [INFO ] Computed and/alt/rep : 16/40/16 causal constraints (skipped 0 transitions) in 3 ms.
[2025-06-07 23:18:59] [INFO ] Added : 1 causal constraints over 1 iterations in 10 ms. Result :sat
Minimization took 7 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:18:59] [INFO ] [Real]Absence check using 2 positive place invariants in 1 ms returned sat
[2025-06-07 23:18:59] [INFO ] [Real]Absence check using 2 positive and 3 generalized place invariants in 1 ms returned sat
[2025-06-07 23:18:59] [INFO ] [Real]Absence check using state equation in 13 ms returned sat
[2025-06-07 23:18:59] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:18:59] [INFO ] [Nat]Absence check using 2 positive place invariants in 1 ms returned sat
[2025-06-07 23:18:59] [INFO ] [Nat]Absence check using 2 positive and 3 generalized place invariants in 1 ms returned sat
[2025-06-07 23:18:59] [INFO ] [Nat]Absence check using state equation in 14 ms returned sat
[2025-06-07 23:18:59] [INFO ] [Nat]Added 8 Read/Feed constraints in 3 ms returned sat
[2025-06-07 23:18:59] [INFO ] Computed and/alt/rep : 16/40/16 causal constraints (skipped 0 transitions) in 3 ms.
[2025-06-07 23:18:59] [INFO ] Added : 3 causal constraints over 1 iterations in 12 ms. Result :sat
Minimization took 9 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:18:59] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-07 23:18:59] [INFO ] [Real]Absence check using 2 positive and 3 generalized place invariants in 2 ms returned sat
[2025-06-07 23:18:59] [INFO ] [Real]Absence check using state equation in 12 ms returned sat
[2025-06-07 23:18:59] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:18:59] [INFO ] [Nat]Absence check using 2 positive place invariants in 1 ms returned sat
[2025-06-07 23:18:59] [INFO ] [Nat]Absence check using 2 positive and 3 generalized place invariants in 1 ms returned sat
[2025-06-07 23:18:59] [INFO ] [Nat]Absence check using state equation in 13 ms returned sat
[2025-06-07 23:18:59] [INFO ] [Nat]Added 8 Read/Feed constraints in 20 ms returned sat
[2025-06-07 23:18:59] [INFO ] Computed and/alt/rep : 16/40/16 causal constraints (skipped 0 transitions) in 5 ms.
[2025-06-07 23:18:59] [INFO ] Added : 2 causal constraints over 1 iterations in 30 ms. Result :sat
Minimization took 78 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:18:59] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-07 23:18:59] [INFO ] [Real]Absence check using 2 positive and 3 generalized place invariants in 2 ms returned sat
[2025-06-07 23:18:59] [INFO ] [Real]Absence check using state equation in 19 ms returned sat
[2025-06-07 23:18:59] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:18:59] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-07 23:18:59] [INFO ] [Nat]Absence check using 2 positive and 3 generalized place invariants in 2 ms returned sat
[2025-06-07 23:18:59] [INFO ] [Nat]Absence check using state equation in 20 ms returned sat
[2025-06-07 23:18:59] [INFO ] [Nat]Added 8 Read/Feed constraints in 4 ms returned sat
[2025-06-07 23:18:59] [INFO ] Computed and/alt/rep : 16/40/16 causal constraints (skipped 0 transitions) in 5 ms.
[2025-06-07 23:18:59] [INFO ] Added : 1 causal constraints over 1 iterations in 17 ms. Result :sat
Minimization took 39 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:18:59] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-07 23:18:59] [INFO ] [Real]Absence check using 2 positive and 3 generalized place invariants in 2 ms returned sat
[2025-06-07 23:18:59] [INFO ] [Real]Absence check using state equation in 19 ms returned sat
[2025-06-07 23:18:59] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:18:59] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-07 23:18:59] [INFO ] [Nat]Absence check using 2 positive and 3 generalized place invariants in 1 ms returned sat
[2025-06-07 23:18:59] [INFO ] [Nat]Absence check using state equation in 19 ms returned sat
[2025-06-07 23:18:59] [INFO ] [Nat]Added 8 Read/Feed constraints in 4 ms returned sat
[2025-06-07 23:18:59] [INFO ] Computed and/alt/rep : 16/40/16 causal constraints (skipped 0 transitions) in 5 ms.
[2025-06-07 23:18:59] [INFO ] Added : 2 causal constraints over 1 iterations in 17 ms. Result :sat
Minimization took 12 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:18:59] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-07 23:18:59] [INFO ] [Real]Absence check using 2 positive and 3 generalized place invariants in 2 ms returned sat
[2025-06-07 23:18:59] [INFO ] [Real]Absence check using state equation in 18 ms returned sat
[2025-06-07 23:18:59] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:18:59] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-07 23:18:59] [INFO ] [Nat]Absence check using 2 positive and 3 generalized place invariants in 1 ms returned sat
[2025-06-07 23:18:59] [INFO ] [Nat]Absence check using state equation in 20 ms returned sat
[2025-06-07 23:19:00] [INFO ] [Nat]Added 8 Read/Feed constraints in 4 ms returned sat
[2025-06-07 23:19:00] [INFO ] Computed and/alt/rep : 16/40/16 causal constraints (skipped 0 transitions) in 3 ms.
[2025-06-07 23:19:00] [INFO ] Added : 2 causal constraints over 1 iterations in 17 ms. Result :sat
Minimization took 14 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:19:00] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-07 23:19:00] [INFO ] [Real]Absence check using 2 positive and 3 generalized place invariants in 1 ms returned sat
[2025-06-07 23:19:00] [INFO ] [Real]Absence check using state equation in 17 ms returned sat
[2025-06-07 23:19:00] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:19:00] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-07 23:19:00] [INFO ] [Nat]Absence check using 2 positive and 3 generalized place invariants in 1 ms returned sat
[2025-06-07 23:19:00] [INFO ] [Nat]Absence check using state equation in 24 ms returned sat
[2025-06-07 23:19:00] [INFO ] [Nat]Added 8 Read/Feed constraints in 4 ms returned sat
[2025-06-07 23:19:00] [INFO ] Computed and/alt/rep : 16/40/16 causal constraints (skipped 0 transitions) in 5 ms.
[2025-06-07 23:19:00] [INFO ] Added : 3 causal constraints over 1 iterations in 17 ms. Result :sat
Minimization took 11 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:19:00] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-07 23:19:00] [INFO ] [Real]Absence check using 2 positive and 3 generalized place invariants in 2 ms returned sat
[2025-06-07 23:19:00] [INFO ] [Real]Absence check using state equation in 18 ms returned sat
[2025-06-07 23:19:00] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:19:00] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-07 23:19:00] [INFO ] [Nat]Absence check using 2 positive and 3 generalized place invariants in 2 ms returned sat
[2025-06-07 23:19:00] [INFO ] [Nat]Absence check using state equation in 20 ms returned sat
[2025-06-07 23:19:00] [INFO ] [Nat]Added 8 Read/Feed constraints in 3 ms returned sat
[2025-06-07 23:19:00] [INFO ] Computed and/alt/rep : 16/40/16 causal constraints (skipped 0 transitions) in 4 ms.
[2025-06-07 23:19:00] [INFO ] Added : 2 causal constraints over 1 iterations in 16 ms. Result :sat
Minimization took 13 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:19:00] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-07 23:19:00] [INFO ] [Real]Absence check using 2 positive and 3 generalized place invariants in 2 ms returned sat
[2025-06-07 23:19:00] [INFO ] [Real]Absence check using state equation in 19 ms returned sat
[2025-06-07 23:19:00] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:19:00] [INFO ] [Nat]Absence check using 2 positive place invariants in 1 ms returned sat
[2025-06-07 23:19:00] [INFO ] [Nat]Absence check using 2 positive and 3 generalized place invariants in 2 ms returned sat
[2025-06-07 23:19:00] [INFO ] [Nat]Absence check using state equation in 16 ms returned sat
[2025-06-07 23:19:00] [INFO ] [Nat]Added 8 Read/Feed constraints in 3 ms returned sat
[2025-06-07 23:19:00] [INFO ] Computed and/alt/rep : 16/40/16 causal constraints (skipped 0 transitions) in 3 ms.
[2025-06-07 23:19:00] [INFO ] Added : 3 causal constraints over 1 iterations in 15 ms. Result :sat
Minimization took 14 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:19:00] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-07 23:19:00] [INFO ] [Real]Absence check using 2 positive and 3 generalized place invariants in 2 ms returned sat
[2025-06-07 23:19:00] [INFO ] [Real]Absence check using state equation in 19 ms returned sat
[2025-06-07 23:19:00] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:19:00] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-07 23:19:00] [INFO ] [Nat]Absence check using 2 positive and 3 generalized place invariants in 1 ms returned sat
[2025-06-07 23:19:00] [INFO ] [Nat]Absence check using state equation in 19 ms returned sat
[2025-06-07 23:19:00] [INFO ] [Nat]Added 8 Read/Feed constraints in 20 ms returned sat
[2025-06-07 23:19:00] [INFO ] Computed and/alt/rep : 16/40/16 causal constraints (skipped 0 transitions) in 4 ms.
[2025-06-07 23:19:00] [INFO ] Added : 2 causal constraints over 1 iterations in 17 ms. Result :sat
Minimization took 27 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:19:00] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-07 23:19:00] [INFO ] [Real]Absence check using 2 positive and 3 generalized place invariants in 2 ms returned sat
[2025-06-07 23:19:00] [INFO ] [Real]Absence check using state equation in 18 ms returned sat
[2025-06-07 23:19:00] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:19:00] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-07 23:19:00] [INFO ] [Nat]Absence check using 2 positive and 3 generalized place invariants in 1 ms returned sat
[2025-06-07 23:19:00] [INFO ] [Nat]Absence check using state equation in 19 ms returned sat
[2025-06-07 23:19:00] [INFO ] [Nat]Added 8 Read/Feed constraints in 4 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-07 23:19:00] [INFO ] Deduced a trap composed of 2 places in 29 ms of which 3 ms to minimize.
[2025-06-07 23:19:00] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 37 ms
[2025-06-07 23:19:00] [INFO ] Computed and/alt/rep : 16/40/16 causal constraints (skipped 0 transitions) in 3 ms.
[2025-06-07 23:19:00] [INFO ] Added : 3 causal constraints over 1 iterations in 15 ms. Result :sat
Minimization took 13 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[1, 3, 185, 179, 2, 2, 3, 2, 3, 197, 2] Max Struct:[+inf, +inf, 204, 204, +inf, +inf, +inf, +inf, +inf, 204, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[1, 3, 185, 179, 2, 2, 3, 2, 3, 197, 2] Max Struct:[+inf, +inf, 204, 204, +inf, +inf, +inf, +inf, +inf, 204, +inf]
Support contains 11 out of 24 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 24/24 places, 28/28 transitions.
Applied a total of 0 rules in 4 ms. Remains 24 /24 variables (removed 0) and now considering 28/28 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 4 ms. Remains : 24/24 places, 28/28 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 24/24 places, 28/28 transitions.
Applied a total of 0 rules in 3 ms. Remains 24 /24 variables (removed 0) and now considering 28/28 (removed 0) transitions.
[2025-06-07 23:19:01] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-07 23:19:01] [INFO ] Implicit Places using invariants in 64 ms returned [8, 9, 10, 11]
Discarding 4 places :
Implicit Place search using SMT only with invariants took 69 ms to find 4 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 1 : 20/24 places, 28/28 transitions.
Applied a total of 0 rules in 2 ms. Remains 20 /20 variables (removed 0) and now considering 28/28 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 2 iterations and 74 ms. Remains : 20/24 places, 28/28 transitions.
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {14=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {13=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 43 ms. (steps per millisecond=232 ) properties (out of 11) seen :[1, 3, 50, 63, 2, 2, 3, 2, 3, 57, 2]
Current structural bounds on expressions (after cover walk) : Max Seen:[1, 3, 185, 179, 2, 2, 3, 2, 3, 197, 2] Max Struct:[+inf, +inf, 204, 204, +inf, +inf, +inf, +inf, +inf, 204, +inf]
// Phase 1: matrix 28 rows 20 cols
[2025-06-07 23:19:01] [INFO ] Computed 1 invariants in 6 ms
Current structural bounds on expressions (after invariants) : Max Seen:[1, 3, 185, 179, 2, 2, 3, 2, 3, 197, 2] Max Struct:[+inf, +inf, 204, 204, +inf, +inf, +inf, +inf, +inf, 204, +inf]
RANDOM walk for 1000053 steps (2 resets) in 729 ms. (1369 steps per ms)
BEST_FIRST walk for 11000010 steps (22 resets) in 5794 ms. (1898 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[1, 3, 185, 179, 2, 2, 3, 2, 3, 197, 2] Max Struct:[+inf, +inf, 204, 204, +inf, +inf, +inf, +inf, +inf, 204, +inf]
[2025-06-07 23:19:07] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:19:07] [INFO ] [Real]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-07 23:19:07] [INFO ] [Real]Absence check using state equation in 12 ms returned sat
[2025-06-07 23:19:07] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:19:07] [INFO ] [Nat]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-07 23:19:07] [INFO ] [Nat]Absence check using state equation in 11 ms returned sat
[2025-06-07 23:19:07] [INFO ] State equation strengthened by 8 read => feed constraints.
[2025-06-07 23:19:07] [INFO ] [Nat]Added 8 Read/Feed constraints in 2 ms returned sat
[2025-06-07 23:19:07] [INFO ] Computed and/alt/rep : 16/40/16 causal constraints (skipped 0 transitions) in 2 ms.
[2025-06-07 23:19:07] [INFO ] Added : 1 causal constraints over 1 iterations in 11 ms. Result :sat
Minimization took 6 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:19:07] [INFO ] [Real]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-07 23:19:07] [INFO ] [Real]Absence check using state equation in 11 ms returned sat
[2025-06-07 23:19:07] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:19:07] [INFO ] [Nat]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-07 23:19:07] [INFO ] [Nat]Absence check using state equation in 13 ms returned sat
[2025-06-07 23:19:07] [INFO ] [Nat]Added 8 Read/Feed constraints in 3 ms returned sat
[2025-06-07 23:19:07] [INFO ] Computed and/alt/rep : 16/40/16 causal constraints (skipped 0 transitions) in 3 ms.
[2025-06-07 23:19:07] [INFO ] Added : 3 causal constraints over 1 iterations in 11 ms. Result :sat
Minimization took 8 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:19:07] [INFO ] [Real]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-07 23:19:07] [INFO ] [Real]Absence check using state equation in 11 ms returned sat
[2025-06-07 23:19:07] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:19:08] [INFO ] [Nat]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-07 23:19:08] [INFO ] [Nat]Absence check using state equation in 14 ms returned sat
[2025-06-07 23:19:08] [INFO ] [Nat]Added 8 Read/Feed constraints in 9 ms returned sat
[2025-06-07 23:19:08] [INFO ] Computed and/alt/rep : 16/40/16 causal constraints (skipped 0 transitions) in 3 ms.
[2025-06-07 23:19:08] [INFO ] Added : 2 causal constraints over 1 iterations in 11 ms. Result :sat
Minimization took 45 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:19:08] [INFO ] [Real]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-07 23:19:08] [INFO ] [Real]Absence check using state equation in 11 ms returned sat
[2025-06-07 23:19:08] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:19:08] [INFO ] [Nat]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-07 23:19:08] [INFO ] [Nat]Absence check using state equation in 13 ms returned sat
[2025-06-07 23:19:08] [INFO ] [Nat]Added 8 Read/Feed constraints in 3 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-07 23:19:08] [INFO ] Deduced a trap composed of 4 places in 31 ms of which 2 ms to minimize.
[2025-06-07 23:19:08] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 36 ms
[2025-06-07 23:19:08] [INFO ] Computed and/alt/rep : 16/40/16 causal constraints (skipped 0 transitions) in 3 ms.
[2025-06-07 23:19:08] [INFO ] Added : 5 causal constraints over 1 iterations in 13 ms. Result :sat
Minimization took 43 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:19:08] [INFO ] [Real]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-07 23:19:08] [INFO ] [Real]Absence check using state equation in 12 ms returned sat
[2025-06-07 23:19:08] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:19:08] [INFO ] [Nat]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-07 23:19:08] [INFO ] [Nat]Absence check using state equation in 12 ms returned sat
[2025-06-07 23:19:08] [INFO ] [Nat]Added 8 Read/Feed constraints in 3 ms returned sat
[2025-06-07 23:19:08] [INFO ] Computed and/alt/rep : 16/40/16 causal constraints (skipped 0 transitions) in 2 ms.
[2025-06-07 23:19:08] [INFO ] Added : 2 causal constraints over 1 iterations in 10 ms. Result :sat
Minimization took 8 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:19:08] [INFO ] [Real]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-07 23:19:08] [INFO ] [Real]Absence check using state equation in 12 ms returned sat
[2025-06-07 23:19:08] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:19:08] [INFO ] [Nat]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-07 23:19:08] [INFO ] [Nat]Absence check using state equation in 19 ms returned sat
[2025-06-07 23:19:08] [INFO ] [Nat]Added 8 Read/Feed constraints in 4 ms returned sat
[2025-06-07 23:19:08] [INFO ] Computed and/alt/rep : 16/40/16 causal constraints (skipped 0 transitions) in 4 ms.
[2025-06-07 23:19:08] [INFO ] Added : 2 causal constraints over 1 iterations in 16 ms. Result :sat
Minimization took 11 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:19:08] [INFO ] [Real]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-07 23:19:08] [INFO ] [Real]Absence check using state equation in 17 ms returned sat
[2025-06-07 23:19:08] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:19:08] [INFO ] [Nat]Absence check using 1 positive place invariants in 2 ms returned sat
[2025-06-07 23:19:08] [INFO ] [Nat]Absence check using state equation in 18 ms returned sat
[2025-06-07 23:19:08] [INFO ] [Nat]Added 8 Read/Feed constraints in 5 ms returned sat
[2025-06-07 23:19:08] [INFO ] Computed and/alt/rep : 16/40/16 causal constraints (skipped 0 transitions) in 5 ms.
[2025-06-07 23:19:08] [INFO ] Added : 3 causal constraints over 1 iterations in 16 ms. Result :sat
Minimization took 11 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:19:08] [INFO ] [Real]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-07 23:19:08] [INFO ] [Real]Absence check using state equation in 16 ms returned sat
[2025-06-07 23:19:08] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:19:08] [INFO ] [Nat]Absence check using 1 positive place invariants in 2 ms returned sat
[2025-06-07 23:19:08] [INFO ] [Nat]Absence check using state equation in 18 ms returned sat
[2025-06-07 23:19:08] [INFO ] [Nat]Added 8 Read/Feed constraints in 4 ms returned sat
[2025-06-07 23:19:08] [INFO ] Computed and/alt/rep : 16/40/16 causal constraints (skipped 0 transitions) in 4 ms.
[2025-06-07 23:19:08] [INFO ] Added : 2 causal constraints over 1 iterations in 16 ms. Result :sat
Minimization took 13 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:19:08] [INFO ] [Real]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-07 23:19:08] [INFO ] [Real]Absence check using state equation in 16 ms returned sat
[2025-06-07 23:19:08] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:19:08] [INFO ] [Nat]Absence check using 1 positive place invariants in 2 ms returned sat
[2025-06-07 23:19:08] [INFO ] [Nat]Absence check using state equation in 16 ms returned sat
[2025-06-07 23:19:08] [INFO ] [Nat]Added 8 Read/Feed constraints in 4 ms returned sat
[2025-06-07 23:19:08] [INFO ] Computed and/alt/rep : 16/40/16 causal constraints (skipped 0 transitions) in 4 ms.
[2025-06-07 23:19:08] [INFO ] Added : 3 causal constraints over 1 iterations in 16 ms. Result :sat
Minimization took 12 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:19:08] [INFO ] [Real]Absence check using 1 positive place invariants in 2 ms returned sat
[2025-06-07 23:19:08] [INFO ] [Real]Absence check using state equation in 17 ms returned sat
[2025-06-07 23:19:08] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:19:08] [INFO ] [Nat]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-07 23:19:08] [INFO ] [Nat]Absence check using state equation in 17 ms returned sat
[2025-06-07 23:19:08] [INFO ] [Nat]Added 8 Read/Feed constraints in 4 ms returned sat
[2025-06-07 23:19:09] [INFO ] Computed and/alt/rep : 16/40/16 causal constraints (skipped 0 transitions) in 4 ms.
[2025-06-07 23:19:09] [INFO ] Added : 1 causal constraints over 1 iterations in 18 ms. Result :sat
Minimization took 36 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:19:09] [INFO ] [Real]Absence check using 1 positive place invariants in 2 ms returned sat
[2025-06-07 23:19:09] [INFO ] [Real]Absence check using state equation in 16 ms returned sat
[2025-06-07 23:19:09] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:19:09] [INFO ] [Nat]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-07 23:19:09] [INFO ] [Nat]Absence check using state equation in 16 ms returned sat
[2025-06-07 23:19:09] [INFO ] [Nat]Added 8 Read/Feed constraints in 3 ms returned sat
[2025-06-07 23:19:09] [INFO ] Computed and/alt/rep : 16/40/16 causal constraints (skipped 0 transitions) in 4 ms.
[2025-06-07 23:19:09] [INFO ] Added : 2 causal constraints over 1 iterations in 15 ms. Result :sat
Minimization took 12 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[1, 3, 185, 179, 2, 2, 3, 2, 3, 197, 2] Max Struct:[+inf, +inf, 204, 204, +inf, +inf, +inf, +inf, +inf, 204, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[1, 3, 187, 185, 2, 2, 3, 2, 3, 197, 2] Max Struct:[+inf, +inf, 204, 204, +inf, +inf, +inf, +inf, +inf, 204, +inf]
Support contains 11 out of 20 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 20/20 places, 28/28 transitions.
Applied a total of 0 rules in 2 ms. Remains 20 /20 variables (removed 0) and now considering 28/28 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 2 ms. Remains : 20/20 places, 28/28 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 20/20 places, 28/28 transitions.
Applied a total of 0 rules in 2 ms. Remains 20 /20 variables (removed 0) and now considering 28/28 (removed 0) transitions.
[2025-06-07 23:19:09] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-07 23:19:09] [INFO ] Implicit Places using invariants in 37 ms returned []
[2025-06-07 23:19:09] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-07 23:19:09] [INFO ] State equation strengthened by 8 read => feed constraints.
[2025-06-07 23:19:09] [INFO ] Implicit Places using invariants and state equation in 59 ms returned []
Implicit Place search using SMT with State Equation took 98 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-07 23:19:09] [INFO ] Redundant transitions in 1 ms returned []
Running 16 sub problems to find dead transitions.
[2025-06-07 23:19:09] [INFO ] Invariant cache hit.
[2025-06-07 23:19:09] [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) 0/12 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 1 (OVERLAPS) 4/16 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/16 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 3 (OVERLAPS) 28/44 variables, 16/17 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/44 variables, 8/25 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/44 variables, 0/25 constraints. Problems are: Problem set: 0 solved, 16 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (OVERLAPS) 4/48 variables, 4/29 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/48 variables, 0/29 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 8 (OVERLAPS) 0/48 variables, 0/29 constraints. Problems are: Problem set: 0 solved, 16 unsolved
No progress, stopping.
After SMT solving in domain Real declared 48/48 variables, and 29 constraints, problems are : Problem set: 0 solved, 16 unsolved in 443 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 20/20 constraints, ReadFeed: 8/8 constraints, PredecessorRefiner: 16/16 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 16 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/12 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 1 (OVERLAPS) 4/16 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/16 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 3 (OVERLAPS) 28/44 variables, 16/17 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/44 variables, 8/25 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/44 variables, 0/25 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 6 (OVERLAPS) 4/48 variables, 4/29 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/48 variables, 16/45 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/48 variables, 0/45 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 9 (OVERLAPS) 0/48 variables, 0/45 constraints. Problems are: Problem set: 0 solved, 16 unsolved
No progress, stopping.
After SMT solving in domain Int declared 48/48 variables, and 45 constraints, problems are : Problem set: 0 solved, 16 unsolved in 626 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 20/20 constraints, ReadFeed: 8/8 constraints, PredecessorRefiner: 16/16 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 1095ms problems are : Problem set: 0 solved, 16 unsolved
Search for dead transitions found 0 dead transitions in 1096ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 1205 ms. Remains : 20/20 places, 28/28 transitions.
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {14=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {13=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 44 ms. (steps per millisecond=227 ) properties (out of 11) seen :[1, 3, 51, 53, 2, 2, 3, 2, 3, 58, 2]
Current structural bounds on expressions (after cover walk) : Max Seen:[1, 3, 187, 185, 2, 2, 3, 2, 3, 197, 2] Max Struct:[+inf, +inf, 204, 204, +inf, +inf, +inf, +inf, +inf, 204, +inf]
[2025-06-07 23:19:10] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[1, 3, 187, 185, 2, 2, 3, 2, 3, 197, 2] Max Struct:[+inf, +inf, 204, 204, +inf, +inf, +inf, +inf, +inf, 204, +inf]
RANDOM walk for 1000034 steps (2 resets) in 761 ms. (1312 steps per ms)
BEST_FIRST walk for 11000011 steps (22 resets) in 4748 ms. (2316 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[1, 3, 187, 185, 2, 2, 3, 2, 3, 197, 2] Max Struct:[+inf, +inf, 204, 204, +inf, +inf, +inf, +inf, +inf, 204, +inf]
[2025-06-07 23:19:16] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:19:16] [INFO ] [Real]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-07 23:19:16] [INFO ] [Real]Absence check using state equation in 12 ms returned sat
[2025-06-07 23:19:16] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:19:16] [INFO ] [Nat]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-07 23:19:16] [INFO ] [Nat]Absence check using state equation in 12 ms returned sat
[2025-06-07 23:19:16] [INFO ] State equation strengthened by 8 read => feed constraints.
[2025-06-07 23:19:16] [INFO ] [Nat]Added 8 Read/Feed constraints in 2 ms returned sat
[2025-06-07 23:19:16] [INFO ] Computed and/alt/rep : 16/40/16 causal constraints (skipped 0 transitions) in 2 ms.
[2025-06-07 23:19:16] [INFO ] Added : 1 causal constraints over 1 iterations in 10 ms. Result :sat
Minimization took 7 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:19:16] [INFO ] [Real]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-07 23:19:16] [INFO ] [Real]Absence check using state equation in 11 ms returned sat
[2025-06-07 23:19:16] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:19:16] [INFO ] [Nat]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-07 23:19:16] [INFO ] [Nat]Absence check using state equation in 12 ms returned sat
[2025-06-07 23:19:16] [INFO ] [Nat]Added 8 Read/Feed constraints in 4 ms returned sat
[2025-06-07 23:19:16] [INFO ] Computed and/alt/rep : 16/40/16 causal constraints (skipped 0 transitions) in 2 ms.
[2025-06-07 23:19:16] [INFO ] Added : 3 causal constraints over 1 iterations in 9 ms. Result :sat
Minimization took 7 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:19:16] [INFO ] [Real]Absence check using 1 positive place invariants in 2 ms returned sat
[2025-06-07 23:19:16] [INFO ] [Real]Absence check using state equation in 18 ms returned sat
[2025-06-07 23:19:16] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:19:16] [INFO ] [Nat]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-07 23:19:16] [INFO ] [Nat]Absence check using state equation in 16 ms returned sat
[2025-06-07 23:19:16] [INFO ] [Nat]Added 8 Read/Feed constraints in 15 ms returned sat
[2025-06-07 23:19:16] [INFO ] Computed and/alt/rep : 16/40/16 causal constraints (skipped 0 transitions) in 4 ms.
[2025-06-07 23:19:16] [INFO ] Added : 2 causal constraints over 1 iterations in 16 ms. Result :sat
Minimization took 51 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:19:16] [INFO ] [Real]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-07 23:19:16] [INFO ] [Real]Absence check using state equation in 15 ms returned sat
[2025-06-07 23:19:16] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:19:16] [INFO ] [Nat]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-07 23:19:16] [INFO ] [Nat]Absence check using state equation in 19 ms returned sat
[2025-06-07 23:19:16] [INFO ] [Nat]Added 8 Read/Feed constraints in 4 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-07 23:19:16] [INFO ] Deduced a trap composed of 4 places in 39 ms of which 3 ms to minimize.
[2025-06-07 23:19:16] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 45 ms
[2025-06-07 23:19:16] [INFO ] Computed and/alt/rep : 16/40/16 causal constraints (skipped 0 transitions) in 4 ms.
[2025-06-07 23:19:16] [INFO ] Added : 5 causal constraints over 1 iterations in 17 ms. Result :sat
Minimization took 63 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:19:16] [INFO ] [Real]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-07 23:19:16] [INFO ] [Real]Absence check using state equation in 15 ms returned sat
[2025-06-07 23:19:16] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:19:16] [INFO ] [Nat]Absence check using 1 positive place invariants in 2 ms returned sat
[2025-06-07 23:19:16] [INFO ] [Nat]Absence check using state equation in 15 ms returned sat
[2025-06-07 23:19:16] [INFO ] [Nat]Added 8 Read/Feed constraints in 3 ms returned sat
[2025-06-07 23:19:16] [INFO ] Computed and/alt/rep : 16/40/16 causal constraints (skipped 0 transitions) in 3 ms.
[2025-06-07 23:19:16] [INFO ] Added : 2 causal constraints over 1 iterations in 12 ms. Result :sat
Minimization took 12 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:19:16] [INFO ] [Real]Absence check using 1 positive place invariants in 2 ms returned sat
[2025-06-07 23:19:16] [INFO ] [Real]Absence check using state equation in 21 ms returned sat
[2025-06-07 23:19:16] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:19:16] [INFO ] [Nat]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-07 23:19:17] [INFO ] [Nat]Absence check using state equation in 15 ms returned sat
[2025-06-07 23:19:17] [INFO ] [Nat]Added 8 Read/Feed constraints in 3 ms returned sat
[2025-06-07 23:19:17] [INFO ] Computed and/alt/rep : 16/40/16 causal constraints (skipped 0 transitions) in 3 ms.
[2025-06-07 23:19:17] [INFO ] Added : 2 causal constraints over 1 iterations in 13 ms. Result :sat
Minimization took 10 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:19:17] [INFO ] [Real]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-07 23:19:17] [INFO ] [Real]Absence check using state equation in 13 ms returned sat
[2025-06-07 23:19:17] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:19:17] [INFO ] [Nat]Absence check using 1 positive place invariants in 2 ms returned sat
[2025-06-07 23:19:17] [INFO ] [Nat]Absence check using state equation in 17 ms returned sat
[2025-06-07 23:19:17] [INFO ] [Nat]Added 8 Read/Feed constraints in 4 ms returned sat
[2025-06-07 23:19:17] [INFO ] Computed and/alt/rep : 16/40/16 causal constraints (skipped 0 transitions) in 4 ms.
[2025-06-07 23:19:17] [INFO ] Added : 3 causal constraints over 1 iterations in 15 ms. Result :sat
Minimization took 12 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:19:17] [INFO ] [Real]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-07 23:19:17] [INFO ] [Real]Absence check using state equation in 16 ms returned sat
[2025-06-07 23:19:17] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:19:17] [INFO ] [Nat]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-07 23:19:17] [INFO ] [Nat]Absence check using state equation in 16 ms returned sat
[2025-06-07 23:19:17] [INFO ] [Nat]Added 8 Read/Feed constraints in 4 ms returned sat
[2025-06-07 23:19:17] [INFO ] Computed and/alt/rep : 16/40/16 causal constraints (skipped 0 transitions) in 4 ms.
[2025-06-07 23:19:17] [INFO ] Added : 2 causal constraints over 1 iterations in 14 ms. Result :sat
Minimization took 8 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:19:17] [INFO ] [Real]Absence check using 1 positive place invariants in 4 ms returned sat
[2025-06-07 23:19:17] [INFO ] [Real]Absence check using state equation in 18 ms returned sat
[2025-06-07 23:19:17] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:19:17] [INFO ] [Nat]Absence check using 1 positive place invariants in 2 ms returned sat
[2025-06-07 23:19:17] [INFO ] [Nat]Absence check using state equation in 13 ms returned sat
[2025-06-07 23:19:17] [INFO ] [Nat]Added 8 Read/Feed constraints in 3 ms returned sat
[2025-06-07 23:19:17] [INFO ] Computed and/alt/rep : 16/40/16 causal constraints (skipped 0 transitions) in 4 ms.
[2025-06-07 23:19:17] [INFO ] Added : 3 causal constraints over 1 iterations in 13 ms. Result :sat
Minimization took 9 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:19:17] [INFO ] [Real]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-07 23:19:17] [INFO ] [Real]Absence check using state equation in 16 ms returned sat
[2025-06-07 23:19:17] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:19:17] [INFO ] [Nat]Absence check using 1 positive place invariants in 2 ms returned sat
[2025-06-07 23:19:17] [INFO ] [Nat]Absence check using state equation in 18 ms returned sat
[2025-06-07 23:19:17] [INFO ] [Nat]Added 8 Read/Feed constraints in 4 ms returned sat
[2025-06-07 23:19:17] [INFO ] Computed and/alt/rep : 16/40/16 causal constraints (skipped 0 transitions) in 4 ms.
[2025-06-07 23:19:17] [INFO ] Added : 1 causal constraints over 1 iterations in 15 ms. Result :sat
Minimization took 36 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:19:17] [INFO ] [Real]Absence check using 1 positive place invariants in 2 ms returned sat
[2025-06-07 23:19:17] [INFO ] [Real]Absence check using state equation in 17 ms returned sat
[2025-06-07 23:19:17] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:19:17] [INFO ] [Nat]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-07 23:19:17] [INFO ] [Nat]Absence check using state equation in 17 ms returned sat
[2025-06-07 23:19:17] [INFO ] [Nat]Added 8 Read/Feed constraints in 4 ms returned sat
[2025-06-07 23:19:17] [INFO ] Computed and/alt/rep : 16/40/16 causal constraints (skipped 0 transitions) in 3 ms.
[2025-06-07 23:19:17] [INFO ] Added : 2 causal constraints over 1 iterations in 15 ms. Result :sat
Minimization took 12 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[1, 3, 187, 185, 2, 2, 3, 2, 3, 197, 2] Max Struct:[+inf, +inf, 204, 204, +inf, +inf, +inf, +inf, +inf, 204, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[1, 3, 187, 185, 2, 2, 3, 2, 3, 197, 2] Max Struct:[+inf, +inf, 204, 204, +inf, +inf, +inf, +inf, +inf, 204, +inf]
Support contains 11 out of 20 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 20/20 places, 28/28 transitions.
Applied a total of 0 rules in 3 ms. Remains 20 /20 variables (removed 0) and now considering 28/28 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 3 ms. Remains : 20/20 places, 28/28 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 20/20 places, 28/28 transitions.
Applied a total of 0 rules in 1 ms. Remains 20 /20 variables (removed 0) and now considering 28/28 (removed 0) transitions.
[2025-06-07 23:19:17] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-07 23:19:17] [INFO ] Implicit Places using invariants in 29 ms returned []
[2025-06-07 23:19:17] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-07 23:19:17] [INFO ] State equation strengthened by 8 read => feed constraints.
[2025-06-07 23:19:17] [INFO ] Implicit Places using invariants and state equation in 56 ms returned []
Implicit Place search using SMT with State Equation took 85 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-07 23:19:17] [INFO ] Redundant transitions in 1 ms returned []
Running 16 sub problems to find dead transitions.
[2025-06-07 23:19:17] [INFO ] Invariant cache hit.
[2025-06-07 23:19:17] [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) 0/12 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 1 (OVERLAPS) 4/16 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/16 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 3 (OVERLAPS) 28/44 variables, 16/17 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/44 variables, 8/25 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/44 variables, 0/25 constraints. Problems are: Problem set: 0 solved, 16 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (OVERLAPS) 4/48 variables, 4/29 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/48 variables, 0/29 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 8 (OVERLAPS) 0/48 variables, 0/29 constraints. Problems are: Problem set: 0 solved, 16 unsolved
No progress, stopping.
After SMT solving in domain Real declared 48/48 variables, and 29 constraints, problems are : Problem set: 0 solved, 16 unsolved in 422 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 20/20 constraints, ReadFeed: 8/8 constraints, PredecessorRefiner: 16/16 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 16 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/12 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 1 (OVERLAPS) 4/16 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/16 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 3 (OVERLAPS) 28/44 variables, 16/17 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/44 variables, 8/25 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/44 variables, 0/25 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 6 (OVERLAPS) 4/48 variables, 4/29 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/48 variables, 16/45 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/48 variables, 0/45 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 9 (OVERLAPS) 0/48 variables, 0/45 constraints. Problems are: Problem set: 0 solved, 16 unsolved
No progress, stopping.
After SMT solving in domain Int declared 48/48 variables, and 45 constraints, problems are : Problem set: 0 solved, 16 unsolved in 536 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 20/20 constraints, ReadFeed: 8/8 constraints, PredecessorRefiner: 16/16 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 970ms problems are : Problem set: 0 solved, 16 unsolved
Search for dead transitions found 0 dead transitions in 971ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 1065 ms. Remains : 20/20 places, 28/28 transitions.
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {14=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {13=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 41 ms. (steps per millisecond=243 ) properties (out of 11) seen :[1, 3, 62, 55, 2, 2, 3, 2, 3, 55, 2]
Current structural bounds on expressions (after cover walk) : Max Seen:[1, 3, 187, 185, 2, 2, 3, 2, 3, 197, 2] Max Struct:[+inf, +inf, 204, 204, +inf, +inf, +inf, +inf, +inf, 204, +inf]
RANDOM walk for 40124 steps (8 resets) in 630 ms. (63 steps per ms) remains 14/14 properties
BEST_FIRST walk for 40003 steps (8 resets) in 387 ms. (103 steps per ms) remains 14/14 properties
BEST_FIRST walk for 40004 steps (8 resets) in 381 ms. (104 steps per ms) remains 14/14 properties
[2025-06-07 23:19:19] [INFO ] Flatten gal took : 90 ms
[2025-06-07 23:19:19] [INFO ] Flatten gal took : 15 ms
BEST_FIRST walk for 40003 steps (8 resets) in 337 ms. (118 steps per ms) remains 14/14 properties
[2025-06-07 23:19:19] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality8227504039384452593.gal : 8 ms
[2025-06-07 23:19:19] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality1016228985334025219.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/ReachabilityCardinality8227504039384452593.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality1016228985334025219.prop' '--nowitness' '--gen-order' 'FOLLOW'
BEST_FIRST walk for 40002 steps (8 resets) in 241 ms. (165 steps per ms) remains 14/14 properties

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...328
Loading property file /tmp/ReachabilityCardinality1016228985334025219.prop.
BEST_FIRST walk for 40004 steps (8 resets) in 242 ms. (164 steps per ms) remains 14/14 properties
SDD proceeding with computation,14 properties remain. new max is 4
SDD size :1 after 6
SDD proceeding with computation,14 properties remain. new max is 8
SDD size :6 after 36
SDD proceeding with computation,14 properties remain. new max is 16
SDD size :36 after 90
SDD proceeding with computation,14 properties remain. new max is 32
SDD size :90 after 192
BEST_FIRST walk for 40002 steps (8 resets) in 132 ms. (300 steps per ms) remains 14/14 properties
SDD proceeding with computation,14 properties remain. new max is 64
SDD size :192 after 30630
BEST_FIRST walk for 40004 steps (8 resets) in 111 ms. (357 steps per ms) remains 14/14 properties
BEST_FIRST walk for 40003 steps (8 resets) in 99 ms. (400 steps per ms) remains 14/14 properties
BEST_FIRST walk for 40004 steps (8 resets) in 137 ms. (289 steps per ms) remains 14/14 properties
BEST_FIRST walk for 40003 steps (8 resets) in 70 ms. (563 steps per ms) remains 14/14 properties
SDD proceeding with computation,14 properties remain. new max is 128
SDD size :30630 after 243534
BEST_FIRST walk for 40004 steps (8 resets) in 71 ms. (555 steps per ms) remains 14/14 properties
BEST_FIRST walk for 40004 steps (8 resets) in 94 ms. (421 steps per ms) remains 14/14 properties
BEST_FIRST walk for 40003 steps (8 resets) in 79 ms. (500 steps per ms) remains 14/14 properties
BEST_FIRST walk for 40004 steps (8 resets) in 62 ms. (634 steps per ms) remains 14/14 properties
SDD proceeding with computation,14 properties remain. new max is 256
SDD size :243534 after 1.78854e+09
SDD proceeding with computation,14 properties remain. new max is 512
SDD size :1.78854e+09 after 5.66311e+10
SDD proceeding with computation,14 properties remain. new max is 1024
SDD size :5.66311e+10 after 1.14813e+11
Interrupted probabilistic random walk after 192672 steps, run timeout after 3001 ms. (steps per millisecond=64 ) properties seen :0 out of 14
Probabilistic random walk after 192672 steps, saw 130016 distinct states, run finished after 3007 ms. (steps per millisecond=64 ) properties seen :0
[2025-06-07 23:19:23] [INFO ] Invariant cache hit.
[2025-06-07 23:19:23] [INFO ] State equation strengthened by 8 read => feed constraints.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/11 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 1 (OVERLAPS) 5/16 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 14 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-07 23:19:23] [INFO ] Deduced a trap composed of 4 places in 33 ms of which 2 ms to minimize.
Problem MAX2 is UNSAT
Problem MAX3 is UNSAT
Problem MAX9 is UNSAT
At refinement iteration 2 (INCLUDED_ONLY) 0/16 variables, 1/2 constraints. Problems are: Problem set: 3 solved, 11 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/16 variables, 0/2 constraints. Problems are: Problem set: 3 solved, 11 unsolved
At refinement iteration 4 (OVERLAPS) 28/44 variables, 16/18 constraints. Problems are: Problem set: 3 solved, 11 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/44 variables, 8/26 constraints. Problems are: Problem set: 3 solved, 11 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/44 variables, 0/26 constraints. Problems are: Problem set: 3 solved, 11 unsolved
At refinement iteration 7 (OVERLAPS) 4/48 variables, 4/30 constraints. Problems are: Problem set: 3 solved, 11 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/48 variables, 0/30 constraints. Problems are: Problem set: 3 solved, 11 unsolved
At refinement iteration 9 (OVERLAPS) 0/48 variables, 0/30 constraints. Problems are: Problem set: 3 solved, 11 unsolved
No progress, stopping.
After SMT solving in domain Real declared 48/48 variables, and 30 constraints, problems are : Problem set: 3 solved, 11 unsolved in 299 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 20/20 constraints, ReadFeed: 8/8 constraints, PredecessorRefiner: 14/14 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 3 solved, 11 unsolved
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/11 variables, 0/0 constraints. Problems are: Problem set: 3 solved, 11 unsolved
At refinement iteration 1 (OVERLAPS) 5/16 variables, 1/1 constraints. Problems are: Problem set: 3 solved, 11 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/16 variables, 1/2 constraints. Problems are: Problem set: 3 solved, 11 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/16 variables, 0/2 constraints. Problems are: Problem set: 3 solved, 11 unsolved
At refinement iteration 4 (OVERLAPS) 28/44 variables, 16/18 constraints. Problems are: Problem set: 3 solved, 11 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/44 variables, 8/26 constraints. Problems are: Problem set: 3 solved, 11 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/44 variables, 3/29 constraints. Problems are: Problem set: 3 solved, 11 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/44 variables, 0/29 constraints. Problems are: Problem set: 3 solved, 11 unsolved
At refinement iteration 8 (OVERLAPS) 4/48 variables, 4/33 constraints. Problems are: Problem set: 3 solved, 11 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/48 variables, 8/41 constraints. Problems are: Problem set: 3 solved, 11 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/48 variables, 0/41 constraints. Problems are: Problem set: 3 solved, 11 unsolved
At refinement iteration 11 (OVERLAPS) 0/48 variables, 0/41 constraints. Problems are: Problem set: 3 solved, 11 unsolved
No progress, stopping.
After SMT solving in domain Int declared 48/48 variables, and 41 constraints, problems are : Problem set: 3 solved, 11 unsolved in 400 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 20/20 constraints, ReadFeed: 8/8 constraints, PredecessorRefiner: 11/14 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 706ms problems are : Problem set: 3 solved, 11 unsolved
Fused 11 Parikh solutions to 7 different solutions.
SDD proceeding with computation,14 properties remain. new max is 2048
SDD size :1.14813e+11 after 4.52978e+11
Parikh walk visited 0 properties in 9823 ms.
Support contains 11 out of 20 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 20/20 places, 28/28 transitions.
Applied a total of 0 rules in 2 ms. Remains 20 /20 variables (removed 0) and now considering 28/28 (removed 0) transitions.
Running 16 sub problems to find dead transitions.
[2025-06-07 23:19:33] [INFO ] Invariant cache hit.
[2025-06-07 23:19:33] [INFO ] State equation strengthened by 8 read => feed constraints.
Starting Z3 with timeout 20.0 s and query timeout 2000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/12 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 1 (OVERLAPS) 4/16 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/16 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 3 (OVERLAPS) 28/44 variables, 16/17 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/44 variables, 8/25 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/44 variables, 0/25 constraints. Problems are: Problem set: 0 solved, 16 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (OVERLAPS) 4/48 variables, 4/29 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/48 variables, 0/29 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 8 (OVERLAPS) 0/48 variables, 0/29 constraints. Problems are: Problem set: 0 solved, 16 unsolved
No progress, stopping.
After SMT solving in domain Real declared 48/48 variables, and 29 constraints, problems are : Problem set: 0 solved, 16 unsolved in 299 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 20/20 constraints, ReadFeed: 8/8 constraints, PredecessorRefiner: 16/16 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 16 unsolved
Starting Z3 with timeout 20.0 s and query timeout 2000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/12 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 1 (OVERLAPS) 4/16 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/16 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 3 (OVERLAPS) 28/44 variables, 16/17 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/44 variables, 8/25 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/44 variables, 0/25 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 6 (OVERLAPS) 4/48 variables, 4/29 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/48 variables, 16/45 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/48 variables, 0/45 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 9 (OVERLAPS) 0/48 variables, 0/45 constraints. Problems are: Problem set: 0 solved, 16 unsolved
No progress, stopping.
After SMT solving in domain Int declared 48/48 variables, and 45 constraints, problems are : Problem set: 0 solved, 16 unsolved in 389 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 20/20 constraints, ReadFeed: 8/8 constraints, PredecessorRefiner: 16/16 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 696ms problems are : Problem set: 0 solved, 16 unsolved
Search for dead transitions found 0 dead transitions in 697ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 700 ms. Remains : 20/20 places, 28/28 transitions.
RANDOM walk for 40122 steps (8 resets) in 79 ms. (501 steps per ms) remains 11/11 properties
BEST_FIRST walk for 40003 steps (8 resets) in 58 ms. (678 steps per ms) remains 11/11 properties
BEST_FIRST walk for 40004 steps (8 resets) in 57 ms. (689 steps per ms) remains 11/11 properties
BEST_FIRST walk for 40003 steps (8 resets) in 63 ms. (625 steps per ms) remains 11/11 properties
BEST_FIRST walk for 40003 steps (8 resets) in 58 ms. (678 steps per ms) remains 11/11 properties
BEST_FIRST walk for 40004 steps (8 resets) in 59 ms. (666 steps per ms) remains 11/11 properties
BEST_FIRST walk for 40004 steps (8 resets) in 47 ms. (833 steps per ms) remains 11/11 properties
BEST_FIRST walk for 40004 steps (8 resets) in 71 ms. (555 steps per ms) remains 11/11 properties
BEST_FIRST walk for 40004 steps (8 resets) in 49 ms. (800 steps per ms) remains 11/11 properties
BEST_FIRST walk for 40004 steps (8 resets) in 56 ms. (701 steps per ms) remains 11/11 properties
BEST_FIRST walk for 40004 steps (8 resets) in 53 ms. (740 steps per ms) remains 11/11 properties
BEST_FIRST walk for 40004 steps (8 resets) in 57 ms. (689 steps per ms) remains 11/11 properties
SDD proceeding with computation,14 properties remain. new max is 4096
SDD size :4.52978e+11 after 8.06626e+11
Interrupted probabilistic random walk after 234579 steps, run timeout after 3001 ms. (steps per millisecond=78 ) properties seen :0 out of 11
Probabilistic random walk after 234579 steps, saw 158488 distinct states, run finished after 3001 ms. (steps per millisecond=78 ) properties seen :0
[2025-06-07 23:19:37] [INFO ] Invariant cache hit.
[2025-06-07 23:19:37] [INFO ] State equation strengthened by 8 read => feed constraints.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/11 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 1 (OVERLAPS) 5/16 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 11 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-07 23:19:37] [INFO ] Deduced a trap composed of 4 places in 32 ms of which 3 ms to minimize.
At refinement iteration 2 (INCLUDED_ONLY) 0/16 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/16 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 4 (OVERLAPS) 28/44 variables, 16/18 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/44 variables, 8/26 constraints. Problems are: Problem set: 0 solved, 11 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/44 variables, 0/26 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 7 (OVERLAPS) 4/48 variables, 4/30 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/48 variables, 0/30 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 9 (OVERLAPS) 0/48 variables, 0/30 constraints. Problems are: Problem set: 0 solved, 11 unsolved
No progress, stopping.
After SMT solving in domain Real declared 48/48 variables, and 30 constraints, problems are : Problem set: 0 solved, 11 unsolved in 259 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 20/20 constraints, ReadFeed: 8/8 constraints, PredecessorRefiner: 11/11 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 11 unsolved
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/11 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 1 (OVERLAPS) 5/16 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/16 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/16 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 4 (OVERLAPS) 28/44 variables, 16/18 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/44 variables, 8/26 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/44 variables, 3/29 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/44 variables, 0/29 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 8 (OVERLAPS) 4/48 variables, 4/33 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/48 variables, 8/41 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/48 variables, 0/41 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 11 (OVERLAPS) 0/48 variables, 0/41 constraints. Problems are: Problem set: 0 solved, 11 unsolved
No progress, stopping.
After SMT solving in domain Int declared 48/48 variables, and 41 constraints, problems are : Problem set: 0 solved, 11 unsolved in 367 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 20/20 constraints, ReadFeed: 8/8 constraints, PredecessorRefiner: 11/11 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 632ms problems are : Problem set: 0 solved, 11 unsolved
Fused 11 Parikh solutions to 7 different solutions.
Parikh walk visited 0 properties in 9164 ms.
Support contains 11 out of 20 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 20/20 places, 28/28 transitions.
Applied a total of 0 rules in 1 ms. Remains 20 /20 variables (removed 0) and now considering 28/28 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 1 ms. Remains : 20/20 places, 28/28 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 20/20 places, 28/28 transitions.
Applied a total of 0 rules in 1 ms. Remains 20 /20 variables (removed 0) and now considering 28/28 (removed 0) transitions.
[2025-06-07 23:19:47] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-07 23:19:47] [INFO ] Implicit Places using invariants in 26 ms returned []
[2025-06-07 23:19:47] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-07 23:19:47] [INFO ] State equation strengthened by 8 read => feed constraints.
[2025-06-07 23:19:47] [INFO ] Implicit Places using invariants and state equation in 38 ms returned []
Implicit Place search using SMT with State Equation took 65 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-07 23:19:47] [INFO ] Redundant transitions in 0 ms returned []
Running 16 sub problems to find dead transitions.
[2025-06-07 23:19:47] [INFO ] Invariant cache hit.
[2025-06-07 23:19:47] [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) 0/12 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 1 (OVERLAPS) 4/16 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/16 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 3 (OVERLAPS) 28/44 variables, 16/17 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/44 variables, 8/25 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/44 variables, 0/25 constraints. Problems are: Problem set: 0 solved, 16 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (OVERLAPS) 4/48 variables, 4/29 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/48 variables, 0/29 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 8 (OVERLAPS) 0/48 variables, 0/29 constraints. Problems are: Problem set: 0 solved, 16 unsolved
No progress, stopping.
After SMT solving in domain Real declared 48/48 variables, and 29 constraints, problems are : Problem set: 0 solved, 16 unsolved in 261 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 20/20 constraints, ReadFeed: 8/8 constraints, PredecessorRefiner: 16/16 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 16 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/12 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 1 (OVERLAPS) 4/16 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/16 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 3 (OVERLAPS) 28/44 variables, 16/17 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/44 variables, 8/25 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/44 variables, 0/25 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 6 (OVERLAPS) 4/48 variables, 4/29 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/48 variables, 16/45 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/48 variables, 0/45 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 9 (OVERLAPS) 0/48 variables, 0/45 constraints. Problems are: Problem set: 0 solved, 16 unsolved
No progress, stopping.
After SMT solving in domain Int declared 48/48 variables, and 45 constraints, problems are : Problem set: 0 solved, 16 unsolved in 376 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 20/20 constraints, ReadFeed: 8/8 constraints, PredecessorRefiner: 16/16 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 643ms problems are : Problem set: 0 solved, 16 unsolved
Search for dead transitions found 0 dead transitions in 644ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 716 ms. Remains : 20/20 places, 28/28 transitions.
Attempting over-approximation, by ignoring read arcs.
Applied a total of 0 rules in 1 ms. Remains 20 /20 variables (removed 0) and now considering 28/28 (removed 0) transitions.
Running SMT prover for 11 properties.
[2025-06-07 23:19:48] [INFO ] Invariant cache hit.
Starting Z3 with timeout 450.0 s and query timeout 45000.0 ms
[2025-06-07 23:19:48] [INFO ] [Real]Absence check using 1 positive place invariants in 0 ms returned sat
[2025-06-07 23:19:48] [INFO ] After 89ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:11
Starting Z3 with timeout 450.0 s and query timeout 45000.0 ms
[2025-06-07 23:19:48] [INFO ] [Nat]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-07 23:19:48] [INFO ] After 72ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :11
[2025-06-07 23:19:48] [INFO ] State equation strengthened by 8 read => feed constraints.
[2025-06-07 23:19:48] [INFO ] After 46ms SMT Verify possible using 8 Read/Feed constraints in natural domain returned unsat :0 sat :11
TRAPS : Iteration 0
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-07 23:19:48] [INFO ] Deduced a trap composed of 2 places in 36 ms of which 1 ms to minimize.
[2025-06-07 23:19:48] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 41 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-07 23:19:48] [INFO ] Deduced a trap composed of 2 places in 30 ms of which 2 ms to minimize.
[2025-06-07 23:19:48] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 34 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-07 23:19:48] [INFO ] Deduced a trap composed of 2 places in 20 ms of which 1 ms to minimize.
[2025-06-07 23:19:48] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 24 ms
TRAPS : Iteration 1
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-07 23:19:48] [INFO ] Deduced a trap composed of 2 places in 21 ms of which 2 ms to minimize.
[2025-06-07 23:19:48] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 25 ms
TRAPS : Iteration 2
[2025-06-07 23:19:48] [INFO ] After 306ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :11
[2025-06-07 23:19:48] [INFO ] After 459ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :11
[2025-06-07 23:19:48] [INFO ] Flatten gal took : 10 ms
[2025-06-07 23:19:48] [INFO ] Flatten gal took : 6 ms
[2025-06-07 23:19:48] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality17314692768426172290.gal : 2 ms
[2025-06-07 23:19:48] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality16464507901322837124.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/ReachabilityCardinality17314692768426172290.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality16464507901322837124.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 ...330
Loading property file /tmp/ReachabilityCardinality16464507901322837124.prop.
SDD proceeding with computation,11 properties remain. new max is 4
SDD size :1 after 5
SDD proceeding with computation,11 properties remain. new max is 8
SDD size :5 after 10
SDD proceeding with computation,11 properties remain. new max is 16
SDD size :10 after 19
SDD proceeding with computation,11 properties remain. new max is 32
SDD size :19 after 36
SDD proceeding with computation,11 properties remain. new max is 64
SDD size :36 after 39954
SDD proceeding with computation,11 properties remain. new max is 128
SDD size :39954 after 274734
SDD proceeding with computation,11 properties remain. new max is 256
SDD size :274734 after 2.30621e+09
SDD proceeding with computation,11 properties remain. new max is 512
SDD size :2.30621e+09 after 5.65601e+10
SDD proceeding with computation,11 properties remain. new max is 1024
SDD size :5.65601e+10 after 1.1507e+11
SDD proceeding with computation,11 properties remain. new max is 2048
SDD size :1.1507e+11 after 5.38802e+11
SDD proceeding with computation,11 properties remain. new max is 4096
SDD size :5.38802e+11 after 9.9129e+11
SDD proceeding with computation,11 properties remain. new max is 8192
SDD size :9.9129e+11 after 1.58341e+12
SDD proceeding with computation,11 properties remain. new max is 16384
SDD size :1.58341e+12 after 8.41644e+12
SDD proceeding with computation,14 properties remain. new max is 8192
SDD size :8.06626e+11 after 1.85793e+12
SDD proceeding with computation,14 properties remain. new max is 16384
SDD size :1.85793e+12 after 5.55063e+12
Detected timeout of ITS tools.
[2025-06-07 23:20:03] [INFO ] Flatten gal took : 5 ms
[2025-06-07 23:20:03] [INFO ] Applying decomposition
[2025-06-07 23:20:03] [INFO ] Flatten gal took : 4 ms
Converted graph to binary with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/convert-linux64' '-i' '/tmp/graph13421389955994286307.txt' '-o' '/tmp/graph13421389955994286307.bin' '-w' '/tmp/graph13421389955994286307.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/louvain-linux64' '/tmp/graph13421389955994286307.bin' '-l' '-1' '-v' '-w' '/tmp/graph13421389955994286307.weights' '-q' '0' '-e' '0.001'
[2025-06-07 23:20:03] [INFO ] Decomposing Gal with order
[2025-06-07 23:20:03] [INFO ] Rewriting arrays to variables to allow decomposition.
[2025-06-07 23:20:03] [INFO ] Flatten gal took : 71 ms
[2025-06-07 23:20:03] [INFO ] Fuse similar labels procedure discarded/fused a total of 0 labels/synchronizations in 1 ms.
[2025-06-07 23:20:03] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality10613115820076669189.gal : 3 ms
[2025-06-07 23:20:03] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality7414702543105164416.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/ReachabilityCardinality10613115820076669189.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality7414702543105164416.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 ...308
Loading property file /tmp/ReachabilityCardinality7414702543105164416.prop.
SDD proceeding with computation,11 properties remain. new max is 4
SDD size :1 after 5
SDD proceeding with computation,11 properties remain. new max is 8
SDD size :5 after 10
SDD proceeding with computation,11 properties remain. new max is 16
SDD size :10 after 19
SDD proceeding with computation,11 properties remain. new max is 32
SDD size :19 after 36
SDD proceeding with computation,11 properties remain. new max is 64
SDD size :36 after 969
SDD proceeding with computation,11 properties remain. new max is 128
SDD size :969 after 421209
SDD proceeding with computation,11 properties remain. new max is 256
SDD size :421209 after 6.82794e+09
SDD proceeding with computation,11 properties remain. new max is 512
SDD size :6.82794e+09 after 6.83117e+09
SDD proceeding with computation,11 properties remain. new max is 1024
SDD size :6.83117e+09 after 7.18663e+09
SDD proceeding with computation,11 properties remain. new max is 2048
SDD size :7.18663e+09 after 7.18663e+09
SDD proceeding with computation,11 properties remain. new max is 4096
SDD size :7.18663e+09 after 7.18663e+09
SDD proceeding with computation,11 properties remain. new max is 8192
SDD size :7.18663e+09 after 2.7356e+10
Detected timeout of ITS tools.
[2025-06-07 23:20:09] [INFO ] Flatten gal took : 4 ms
[2025-06-07 23:20:09] [INFO ] Applying decomposition
[2025-06-07 23:20:09] [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/graph11797333190660426588.txt' '-o' '/tmp/graph11797333190660426588.bin' '-w' '/tmp/graph11797333190660426588.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/louvain-linux64' '/tmp/graph11797333190660426588.bin' '-l' '-1' '-v' '-w' '/tmp/graph11797333190660426588.weights' '-q' '0' '-e' '0.001'
[2025-06-07 23:20:09] [INFO ] Decomposing Gal with order
[2025-06-07 23:20:09] [INFO ] Rewriting arrays to variables to allow decomposition.
[2025-06-07 23:20:09] [INFO ] Flatten gal took : 9 ms
[2025-06-07 23:20:09] [INFO ] Fuse similar labels procedure discarded/fused a total of 0 labels/synchronizations in 0 ms.
[2025-06-07 23:20:09] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality3590994945384894354.gal : 2 ms
[2025-06-07 23:20:09] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality8508386426490439246.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/ReachabilityCardinality3590994945384894354.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality8508386426490439246.prop' '--nowitness'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...307
Loading property file /tmp/ReachabilityCardinality8508386426490439246.prop.
SDD proceeding with computation,11 properties remain. new max is 4
SDD size :1 after 12
SDD proceeding with computation,11 properties remain. new max is 8
SDD size :12 after 144
SDD proceeding with computation,11 properties remain. new max is 16
SDD size :144 after 468
SDD proceeding with computation,11 properties remain. new max is 32
SDD size :468 after 1080
SDD proceeding with computation,11 properties remain. new max is 64
SDD size :1080 after 23868
SDD proceeding with computation,11 properties remain. new max is 128
SDD size :23868 after 2.99527e+06
SDD proceeding with computation,11 properties remain. new max is 256
SDD size :2.99527e+06 after 7.63934e+11
SDD proceeding with computation,11 properties remain. new max is 512
SDD size :7.63934e+11 after 2.54944e+12
Detected timeout of ITS tools.
Over-approximation ignoring read arcs solved 0 properties in 30891 ms.
ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
Current structural bounds on expressions (After reachability solving 0 queries.) : Max Seen:[1, 3, 187, 185, 2, 2, 3, 2, 3, 197, 2] Max Struct:[+inf, +inf, 204, 204, +inf, +inf, +inf, +inf, +inf, 204, +inf]
Starting property specific reduction for Murphy-PT-D3N050-UpperBounds-02
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]
[2025-06-07 23:20:18] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[+inf]
RANDOM walk for 10020 steps (2 resets) in 6 ms. (1431 steps per ms)
BEST_FIRST walk for 10001 steps (2 resets) in 6 ms. (1428 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[1] Max Struct:[+inf]
[2025-06-07 23:20:18] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-07 23:20:18] [INFO ] [Real]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-07 23:20:19] [INFO ] [Real]Absence check using state equation in 13 ms returned sat
[2025-06-07 23:20:19] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-07 23:20:19] [INFO ] [Nat]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-07 23:20:19] [INFO ] [Nat]Absence check using state equation in 17 ms returned sat
[2025-06-07 23:20:19] [INFO ] State equation strengthened by 8 read => feed constraints.
[2025-06-07 23:20:19] [INFO ] [Nat]Added 8 Read/Feed constraints in 2 ms returned sat
[2025-06-07 23:20:19] [INFO ] Computed and/alt/rep : 16/40/16 causal constraints (skipped 0 transitions) in 3 ms.
[2025-06-07 23:20:19] [INFO ] Added : 1 causal constraints over 1 iterations in 10 ms. Result :sat
Minimization took 7 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 20 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 20/20 places, 28/28 transitions.
Graph (complete) has 56 edges and 20 vertex of which 3 are kept as prefixes of interest. Removing 17 places using SCC suffix rule.1 ms
Discarding 17 places :
Also discarding 23 output transitions
Drop transitions (Output transitions of discarded places.) removed 23 transitions
Drop transitions (Empty/Sink Transition effects.) removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 3 transition count 4
Applied a total of 2 rules in 11 ms. Remains 3 /20 variables (removed 17) and now considering 4/28 (removed 24) transitions.
Running 3 sub problems to find dead transitions.
// Phase 1: matrix 4 rows 3 cols
[2025-06-07 23:20:19] [INFO ] Computed 0 invariants in 1 ms
[2025-06-07 23:20:19] [INFO ] State equation strengthened by 1 read => feed constraints.
Starting Z3 with timeout 20.0 s and query timeout 2000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (OVERLAPS) 4/6 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/6 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (OVERLAPS) 1/7 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/7 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 6 (OVERLAPS) 0/7 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Real declared 7/7 variables, and 4 constraints, problems are : Problem set: 0 solved, 3 unsolved in 46 ms.
Refiners :[State Equation: 3/3 constraints, ReadFeed: 1/1 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 3 unsolved
Starting Z3 with timeout 20.0 s and query timeout 2000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (OVERLAPS) 4/6 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/6 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (OVERLAPS) 1/7 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/7 variables, 3/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/7 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 7 (OVERLAPS) 0/7 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Int declared 7/7 variables, and 7 constraints, problems are : Problem set: 0 solved, 3 unsolved in 55 ms.
Refiners :[State Equation: 3/3 constraints, ReadFeed: 1/1 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 104ms problems are : Problem set: 0 solved, 3 unsolved
Search for dead transitions found 0 dead transitions in 105ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 116 ms. Remains : 3/20 places, 4/28 transitions.
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {0=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {0=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 33 ms. (steps per millisecond=303 ) properties (out of 1) seen :[1]
Current structural bounds on expressions (after cover walk) : Max Seen:[1] Max Struct:[+inf]
[2025-06-07 23:20:19] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[1] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 339 ms. (2941 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 312 ms. (3194 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[1] Max Struct:[+inf]
[2025-06-07 23:20:19] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:20:19] [INFO ] [Real]Absence check using state equation in 2 ms returned sat
[2025-06-07 23:20:19] [INFO ] State equation strengthened by 1 read => feed constraints.
[2025-06-07 23:20:19] [INFO ] [Real]Added 1 Read/Feed constraints in 0 ms returned sat
[2025-06-07 23:20:19] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:20:19] [INFO ] [Nat]Absence check using state equation in 2 ms returned sat
[2025-06-07 23:20:19] [INFO ] [Nat]Added 1 Read/Feed constraints in 1 ms returned sat
[2025-06-07 23:20:19] [INFO ] Computed and/alt/rep : 3/6/3 causal constraints (skipped 0 transitions) in 1 ms.
[2025-06-07 23:20:19] [INFO ] Added : 3 causal constraints over 2 iterations in 6 ms. Result :sat
Minimization took 2 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 3 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 3/3 places, 4/4 transitions.
Applied a total of 0 rules in 1 ms. Remains 3 /3 variables (removed 0) and now considering 4/4 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 1 ms. Remains : 3/3 places, 4/4 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 3/3 places, 4/4 transitions.
Applied a total of 0 rules in 0 ms. Remains 3 /3 variables (removed 0) and now considering 4/4 (removed 0) transitions.
[2025-06-07 23:20:19] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-07 23:20:19] [INFO ] Implicit Places using invariants in 16 ms returned []
[2025-06-07 23:20:19] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-07 23:20:20] [INFO ] State equation strengthened by 1 read => feed constraints.
[2025-06-07 23:20:20] [INFO ] Implicit Places using invariants and state equation in 21 ms returned []
Implicit Place search using SMT with State Equation took 38 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-07 23:20:20] [INFO ] Redundant transitions in 0 ms returned []
Running 3 sub problems to find dead transitions.
[2025-06-07 23:20:20] [INFO ] Invariant cache hit.
[2025-06-07 23:20:20] [INFO ] State equation strengthened by 1 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (OVERLAPS) 4/6 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/6 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (OVERLAPS) 1/7 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/7 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 6 (OVERLAPS) 0/7 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Real declared 7/7 variables, and 4 constraints, problems are : Problem set: 0 solved, 3 unsolved in 42 ms.
Refiners :[State Equation: 3/3 constraints, ReadFeed: 1/1 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 3 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (OVERLAPS) 4/6 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/6 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (OVERLAPS) 1/7 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/7 variables, 3/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/7 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 7 (OVERLAPS) 0/7 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Int declared 7/7 variables, and 7 constraints, problems are : Problem set: 0 solved, 3 unsolved in 50 ms.
Refiners :[State Equation: 3/3 constraints, ReadFeed: 1/1 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 96ms problems are : Problem set: 0 solved, 3 unsolved
Search for dead transitions found 0 dead transitions in 96ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 143 ms. Remains : 3/3 places, 4/4 transitions.
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {0=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {0=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 11 ms. (steps per millisecond=909 ) properties (out of 1) seen :[1]
Current structural bounds on expressions (after cover walk) : Max Seen:[1] Max Struct:[+inf]
[2025-06-07 23:20:20] [INFO ] Flatten gal took : 1 ms
[2025-06-07 23:20:20] [INFO ] Flatten gal took : 1 ms
[2025-06-07 23:20:20] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality15225324610076055249.gal : 9 ms
[2025-06-07 23:20:20] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality6395513538085251462.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/ReachabilityCardinality15225324610076055249.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality6395513538085251462.prop' '--nowitness' '--gen-order' 'FOLLOW'

RANDOM walk for 40002 steps (8 resets) in 54 ms. (727 steps per ms) remains 1/1 properties
its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...329
Loading property file /tmp/ReachabilityCardinality6395513538085251462.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,6,0.00369,4136,2,8,5,44,7,0,24,26,0
Total reachable state count : 6

Verifying 1 reachability properties.
Invariant property MIN0 is true.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
MIN0,0,0.003989,4136,1,0,5,44,7,0,25,26,0
BEST_FIRST walk for 40004 steps (8 resets) in 50 ms. (784 steps per ms) remains 1/1 properties
Probably explored full state space saw : 6 states, properties seen :0
Probabilistic random walk after 14 steps, saw 6 distinct states, run finished after 7 ms. (steps per millisecond=2 ) properties seen :0
Explored full state space saw : 6 states, properties seen :0
Exhaustive walk after 14 steps, saw 6 distinct states, run finished after 2 ms. (steps per millisecond=7 ) properties seen :0
FORMULA Murphy-PT-D3N050-UpperBounds-02 1 TECHNIQUES REACHABILITY_MIN
Current structural bounds on expressions (After reachability solving 1 queries.) : Max Seen:[] Max Struct:[]
Ending property specific reduction for Murphy-PT-D3N050-UpperBounds-02 in 1238 ms.
Starting property specific reduction for Murphy-PT-D3N050-UpperBounds-03
Current structural bounds on expressions (Initially) : Max Seen:[3] Max Struct:[+inf]
Current structural bounds on expressions (Adding known information on max bounds.) : Max Seen:[3] Max Struct:[+inf]
Current structural bounds on expressions (Before main loop) : Max Seen:[3] Max Struct:[+inf]
// Phase 1: matrix 28 rows 20 cols
[2025-06-07 23:20:20] [INFO ] Computed 1 invariants in 1 ms
Current structural bounds on expressions (after invariants) : Max Seen:[3] Max Struct:[+inf]
RANDOM walk for 10008 steps (2 resets) in 6 ms. (1429 steps per ms)
BEST_FIRST walk for 10001 steps (2 resets) in 7 ms. (1250 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[3] Max Struct:[+inf]
[2025-06-07 23:20:20] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-07 23:20:20] [INFO ] [Real]Absence check using 1 positive place invariants in 0 ms returned sat
[2025-06-07 23:20:20] [INFO ] [Real]Absence check using state equation in 10 ms returned sat
[2025-06-07 23:20:20] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-07 23:20:20] [INFO ] [Nat]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-07 23:20:20] [INFO ] [Nat]Absence check using state equation in 11 ms returned sat
[2025-06-07 23:20:20] [INFO ] State equation strengthened by 8 read => feed constraints.
[2025-06-07 23:20:20] [INFO ] [Nat]Added 8 Read/Feed constraints in 2 ms returned sat
[2025-06-07 23:20:20] [INFO ] Computed and/alt/rep : 16/40/16 causal constraints (skipped 0 transitions) in 3 ms.
[2025-06-07 23:20:20] [INFO ] Added : 3 causal constraints over 1 iterations in 12 ms. Result :sat
Minimization took 7 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[3] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[3] Max Struct:[+inf]
Support contains 1 out of 20 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 20/20 places, 28/28 transitions.
Graph (complete) has 56 edges and 20 vertex of which 3 are kept as prefixes of interest. Removing 17 places using SCC suffix rule.1 ms
Discarding 17 places :
Also discarding 23 output transitions
Drop transitions (Output transitions of discarded places.) removed 23 transitions
Drop transitions (Empty/Sink Transition effects.) removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 3 transition count 4
Applied a total of 2 rules in 1 ms. Remains 3 /20 variables (removed 17) and now considering 4/28 (removed 24) transitions.
Running 3 sub problems to find dead transitions.
// Phase 1: matrix 4 rows 3 cols
[2025-06-07 23:20:20] [INFO ] Computed 0 invariants in 0 ms
[2025-06-07 23:20:20] [INFO ] State equation strengthened by 1 read => feed constraints.
Starting Z3 with timeout 20.0 s and query timeout 2000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (OVERLAPS) 4/6 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/6 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (OVERLAPS) 1/7 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/7 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 6 (OVERLAPS) 0/7 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Real declared 7/7 variables, and 4 constraints, problems are : Problem set: 0 solved, 3 unsolved in 41 ms.
Refiners :[State Equation: 3/3 constraints, ReadFeed: 1/1 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 3 unsolved
Starting Z3 with timeout 20.0 s and query timeout 2000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (OVERLAPS) 4/6 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/6 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (OVERLAPS) 1/7 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/7 variables, 3/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/7 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 7 (OVERLAPS) 0/7 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Int declared 7/7 variables, and 7 constraints, problems are : Problem set: 0 solved, 3 unsolved in 53 ms.
Refiners :[State Equation: 3/3 constraints, ReadFeed: 1/1 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 102ms problems are : Problem set: 0 solved, 3 unsolved
Search for dead transitions found 0 dead transitions in 103ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 104 ms. Remains : 3/20 places, 4/28 transitions.
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {0=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {0=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 6 ms. (steps per millisecond=1666 ) properties (out of 1) seen :[3]
Current structural bounds on expressions (after cover walk) : Max Seen:[3] Max Struct:[+inf]
[2025-06-07 23:20:20] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[3] Max Struct:[+inf]
RANDOM walk for 1000001 steps (2 resets) in 282 ms. (3533 steps per ms)
BEST_FIRST walk for 1000000 steps (2 resets) in 238 ms. (4184 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[3] Max Struct:[+inf]
[2025-06-07 23:20:20] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:20:20] [INFO ] [Real]Absence check using state equation in 5 ms returned sat
[2025-06-07 23:20:20] [INFO ] State equation strengthened by 1 read => feed constraints.
[2025-06-07 23:20:20] [INFO ] [Real]Added 1 Read/Feed constraints in 0 ms returned sat
[2025-06-07 23:20:21] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:20:21] [INFO ] [Nat]Absence check using state equation in 4 ms returned sat
[2025-06-07 23:20:21] [INFO ] [Nat]Added 1 Read/Feed constraints in 1 ms returned sat
[2025-06-07 23:20:21] [INFO ] Computed and/alt/rep : 3/6/3 causal constraints (skipped 0 transitions) in 1 ms.
[2025-06-07 23:20:21] [INFO ] Added : 3 causal constraints over 1 iterations in 7 ms. Result :sat
Minimization took 5 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[3] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[3] Max Struct:[+inf]
Support contains 1 out of 3 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 3/3 places, 4/4 transitions.
Applied a total of 0 rules in 1 ms. Remains 3 /3 variables (removed 0) and now considering 4/4 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 1 ms. Remains : 3/3 places, 4/4 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 3/3 places, 4/4 transitions.
Applied a total of 0 rules in 1 ms. Remains 3 /3 variables (removed 0) and now considering 4/4 (removed 0) transitions.
[2025-06-07 23:20:21] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-07 23:20:21] [INFO ] Implicit Places using invariants in 20 ms returned []
[2025-06-07 23:20:21] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-07 23:20:21] [INFO ] State equation strengthened by 1 read => feed constraints.
[2025-06-07 23:20:21] [INFO ] Implicit Places using invariants and state equation in 28 ms returned []
Implicit Place search using SMT with State Equation took 51 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-07 23:20:21] [INFO ] Redundant transitions in 0 ms returned []
Running 3 sub problems to find dead transitions.
[2025-06-07 23:20:21] [INFO ] Invariant cache hit.
[2025-06-07 23:20:21] [INFO ] State equation strengthened by 1 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (OVERLAPS) 4/6 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/6 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (OVERLAPS) 1/7 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/7 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 6 (OVERLAPS) 0/7 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Real declared 7/7 variables, and 4 constraints, problems are : Problem set: 0 solved, 3 unsolved in 67 ms.
Refiners :[State Equation: 3/3 constraints, ReadFeed: 1/1 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 3 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (OVERLAPS) 4/6 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/6 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (OVERLAPS) 1/7 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/7 variables, 3/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/7 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 7 (OVERLAPS) 0/7 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Int declared 7/7 variables, and 7 constraints, problems are : Problem set: 0 solved, 3 unsolved in 84 ms.
Refiners :[State Equation: 3/3 constraints, ReadFeed: 1/1 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 156ms problems are : Problem set: 0 solved, 3 unsolved
Search for dead transitions found 0 dead transitions in 157ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 217 ms. Remains : 3/3 places, 4/4 transitions.
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {0=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {0=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 8 ms. (steps per millisecond=1250 ) properties (out of 1) seen :[3]
Current structural bounds on expressions (after cover walk) : Max Seen:[3] Max Struct:[+inf]
[2025-06-07 23:20:21] [INFO ] Flatten gal took : 1 ms
[2025-06-07 23:20:21] [INFO ] Flatten gal took : 0 ms
[2025-06-07 23:20:21] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality12679304590057635612.gal : 2 ms
[2025-06-07 23:20:21] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality16129842859633092712.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/ReachabilityCardinality12679304590057635612.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality16129842859633092712.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 ...330
RANDOM walk for 40002 steps (8 resets) in 42 ms. (930 steps per ms) remains 1/1 properties
Loading property file /tmp/ReachabilityCardinality16129842859633092712.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,6,0.003865,4136,2,8,5,44,7,0,24,26,0
Total reachable state count : 6

Verifying 1 reachability properties.
Invariant property MIN0 is true.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
MIN0,0,0.004166,4136,1,0,5,44,7,0,25,26,0
BEST_FIRST walk for 40001 steps (8 resets) in 53 ms. (740 steps per ms) remains 1/1 properties
Probably explored full state space saw : 6 states, properties seen :0
Probabilistic random walk after 14 steps, saw 6 distinct states, run finished after 4 ms. (steps per millisecond=3 ) properties seen :0
Explored full state space saw : 6 states, properties seen :0
Exhaustive walk after 14 steps, saw 6 distinct states, run finished after 1 ms. (steps per millisecond=14 ) properties seen :0
FORMULA Murphy-PT-D3N050-UpperBounds-03 3 TECHNIQUES REACHABILITY_MIN
Current structural bounds on expressions (After reachability solving 1 queries.) : Max Seen:[] Max Struct:[]
Ending property specific reduction for Murphy-PT-D3N050-UpperBounds-03 in 1154 ms.
Starting property specific reduction for Murphy-PT-D3N050-UpperBounds-05
Current structural bounds on expressions (Initially) : Max Seen:[50] Max Struct:[+inf]
Current structural bounds on expressions (Adding known information on max bounds.) : Max Seen:[50] Max Struct:[204]
Current structural bounds on expressions (Before main loop) : Max Seen:[50] Max Struct:[204]
// Phase 1: matrix 28 rows 20 cols
[2025-06-07 23:20:21] [INFO ] Computed 1 invariants in 1 ms
Current structural bounds on expressions (after invariants) : Max Seen:[50] Max Struct:[204]
RANDOM walk for 10020 steps (2 resets) in 8 ms. (1113 steps per ms)
BEST_FIRST walk for 10001 steps (2 resets) in 8 ms. (1111 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[94] Max Struct:[204]
[2025-06-07 23:20:21] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-07 23:20:21] [INFO ] [Real]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-07 23:20:21] [INFO ] [Real]Absence check using state equation in 20 ms returned sat
[2025-06-07 23:20:21] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-07 23:20:21] [INFO ] [Nat]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-07 23:20:21] [INFO ] [Nat]Absence check using state equation in 18 ms returned sat
[2025-06-07 23:20:21] [INFO ] State equation strengthened by 8 read => feed constraints.
[2025-06-07 23:20:21] [INFO ] [Nat]Added 8 Read/Feed constraints in 2 ms returned sat
[2025-06-07 23:20:21] [INFO ] Computed and/alt/rep : 16/40/16 causal constraints (skipped 0 transitions) in 3 ms.
[2025-06-07 23:20:21] [INFO ] Added : 0 causal constraints over 0 iterations in 9 ms. Result :sat
Minimization took 36 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[94] Max Struct:[204]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[126] Max Struct:[204]
Support contains 1 out of 20 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 20/20 places, 28/28 transitions.
Applied a total of 0 rules in 2 ms. Remains 20 /20 variables (removed 0) and now considering 28/28 (removed 0) transitions.
Running 16 sub problems to find dead transitions.
[2025-06-07 23:20:21] [INFO ] Invariant cache hit.
[2025-06-07 23:20:21] [INFO ] State equation strengthened by 8 read => feed constraints.
Starting Z3 with timeout 20.0 s and query timeout 2000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/12 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 1 (OVERLAPS) 4/16 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/16 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 3 (OVERLAPS) 28/44 variables, 16/17 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/44 variables, 8/25 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/44 variables, 0/25 constraints. Problems are: Problem set: 0 solved, 16 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (OVERLAPS) 4/48 variables, 4/29 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/48 variables, 0/29 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 8 (OVERLAPS) 0/48 variables, 0/29 constraints. Problems are: Problem set: 0 solved, 16 unsolved
No progress, stopping.
After SMT solving in domain Real declared 48/48 variables, and 29 constraints, problems are : Problem set: 0 solved, 16 unsolved in 329 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 20/20 constraints, ReadFeed: 8/8 constraints, PredecessorRefiner: 16/16 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 16 unsolved
Starting Z3 with timeout 20.0 s and query timeout 2000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/12 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 1 (OVERLAPS) 4/16 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/16 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 3 (OVERLAPS) 28/44 variables, 16/17 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/44 variables, 8/25 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/44 variables, 0/25 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 6 (OVERLAPS) 4/48 variables, 4/29 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/48 variables, 16/45 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/48 variables, 0/45 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 9 (OVERLAPS) 0/48 variables, 0/45 constraints. Problems are: Problem set: 0 solved, 16 unsolved
No progress, stopping.
After SMT solving in domain Int declared 48/48 variables, and 45 constraints, problems are : Problem set: 0 solved, 16 unsolved in 635 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 20/20 constraints, ReadFeed: 8/8 constraints, PredecessorRefiner: 16/16 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 970ms problems are : Problem set: 0 solved, 16 unsolved
Search for dead transitions found 0 dead transitions in 972ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 975 ms. Remains : 20/20 places, 28/28 transitions.
[2025-06-07 23:20:22] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[126] Max Struct:[204]
RANDOM walk for 1000021 steps (2 resets) in 699 ms. (1428 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 465 ms. (2145 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[126] Max Struct:[204]
[2025-06-07 23:20:23] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:20:23] [INFO ] [Real]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-07 23:20:23] [INFO ] [Real]Absence check using state equation in 12 ms returned sat
[2025-06-07 23:20:23] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:20:23] [INFO ] [Nat]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-07 23:20:23] [INFO ] [Nat]Absence check using state equation in 13 ms returned sat
[2025-06-07 23:20:23] [INFO ] State equation strengthened by 8 read => feed constraints.
[2025-06-07 23:20:23] [INFO ] [Nat]Added 8 Read/Feed constraints in 2 ms returned sat
[2025-06-07 23:20:23] [INFO ] Computed and/alt/rep : 16/40/16 causal constraints (skipped 0 transitions) in 3 ms.
[2025-06-07 23:20:23] [INFO ] Added : 2 causal constraints over 1 iterations in 11 ms. Result :sat
Minimization took 48 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[126] Max Struct:[204]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[179] Max Struct:[204]
Support contains 1 out of 20 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 20/20 places, 28/28 transitions.
Applied a total of 0 rules in 2 ms. Remains 20 /20 variables (removed 0) and now considering 28/28 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 2 ms. Remains : 20/20 places, 28/28 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 20/20 places, 28/28 transitions.
Applied a total of 0 rules in 1 ms. Remains 20 /20 variables (removed 0) and now considering 28/28 (removed 0) transitions.
[2025-06-07 23:20:23] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-07 23:20:23] [INFO ] Implicit Places using invariants in 29 ms returned []
[2025-06-07 23:20:23] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-07 23:20:23] [INFO ] State equation strengthened by 8 read => feed constraints.
[2025-06-07 23:20:23] [INFO ] Implicit Places using invariants and state equation in 49 ms returned []
Implicit Place search using SMT with State Equation took 79 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-07 23:20:23] [INFO ] Redundant transitions in 1 ms returned []
Running 16 sub problems to find dead transitions.
[2025-06-07 23:20:23] [INFO ] Invariant cache hit.
[2025-06-07 23:20:23] [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) 0/12 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 1 (OVERLAPS) 4/16 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/16 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 3 (OVERLAPS) 28/44 variables, 16/17 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/44 variables, 8/25 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/44 variables, 0/25 constraints. Problems are: Problem set: 0 solved, 16 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (OVERLAPS) 4/48 variables, 4/29 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/48 variables, 0/29 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 8 (OVERLAPS) 0/48 variables, 0/29 constraints. Problems are: Problem set: 0 solved, 16 unsolved
No progress, stopping.
After SMT solving in domain Real declared 48/48 variables, and 29 constraints, problems are : Problem set: 0 solved, 16 unsolved in 350 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 20/20 constraints, ReadFeed: 8/8 constraints, PredecessorRefiner: 16/16 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 16 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/12 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 1 (OVERLAPS) 4/16 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/16 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 3 (OVERLAPS) 28/44 variables, 16/17 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/44 variables, 8/25 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/44 variables, 0/25 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 6 (OVERLAPS) 4/48 variables, 4/29 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/48 variables, 16/45 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/48 variables, 0/45 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 9 (OVERLAPS) 0/48 variables, 0/45 constraints. Problems are: Problem set: 0 solved, 16 unsolved
No progress, stopping.
After SMT solving in domain Int declared 48/48 variables, and 45 constraints, problems are : Problem set: 0 solved, 16 unsolved in 469 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 20/20 constraints, ReadFeed: 8/8 constraints, PredecessorRefiner: 16/16 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 825ms problems are : Problem set: 0 solved, 16 unsolved
Search for dead transitions found 0 dead transitions in 826ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 912 ms. Remains : 20/20 places, 28/28 transitions.
[2025-06-07 23:20:24] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[179] Max Struct:[204]
RANDOM walk for 1000024 steps (2 resets) in 448 ms. (2227 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 544 ms. (1834 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[179] Max Struct:[204]
[2025-06-07 23:20:25] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:20:25] [INFO ] [Real]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-07 23:20:25] [INFO ] [Real]Absence check using state equation in 17 ms returned sat
[2025-06-07 23:20:25] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:20:25] [INFO ] [Nat]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-07 23:20:25] [INFO ] [Nat]Absence check using state equation in 18 ms returned sat
[2025-06-07 23:20:25] [INFO ] State equation strengthened by 8 read => feed constraints.
[2025-06-07 23:20:25] [INFO ] [Nat]Added 8 Read/Feed constraints in 12 ms returned sat
[2025-06-07 23:20:25] [INFO ] Computed and/alt/rep : 16/40/16 causal constraints (skipped 0 transitions) in 6 ms.
[2025-06-07 23:20:25] [INFO ] Added : 2 causal constraints over 1 iterations in 19 ms. Result :sat
Minimization took 69 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[179] Max Struct:[204]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[181] Max Struct:[204]
Support contains 1 out of 20 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 20/20 places, 28/28 transitions.
Applied a total of 0 rules in 2 ms. Remains 20 /20 variables (removed 0) and now considering 28/28 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 2 ms. Remains : 20/20 places, 28/28 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 20/20 places, 28/28 transitions.
Applied a total of 0 rules in 1 ms. Remains 20 /20 variables (removed 0) and now considering 28/28 (removed 0) transitions.
[2025-06-07 23:20:26] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-07 23:20:26] [INFO ] Implicit Places using invariants in 32 ms returned []
[2025-06-07 23:20:26] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-07 23:20:26] [INFO ] State equation strengthened by 8 read => feed constraints.
[2025-06-07 23:20:26] [INFO ] Implicit Places using invariants and state equation in 52 ms returned []
Implicit Place search using SMT with State Equation took 85 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-07 23:20:26] [INFO ] Redundant transitions in 1 ms returned []
Running 16 sub problems to find dead transitions.
[2025-06-07 23:20:26] [INFO ] Invariant cache hit.
[2025-06-07 23:20:26] [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) 0/12 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 1 (OVERLAPS) 4/16 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/16 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 3 (OVERLAPS) 28/44 variables, 16/17 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/44 variables, 8/25 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/44 variables, 0/25 constraints. Problems are: Problem set: 0 solved, 16 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (OVERLAPS) 4/48 variables, 4/29 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/48 variables, 0/29 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 8 (OVERLAPS) 0/48 variables, 0/29 constraints. Problems are: Problem set: 0 solved, 16 unsolved
No progress, stopping.
After SMT solving in domain Real declared 48/48 variables, and 29 constraints, problems are : Problem set: 0 solved, 16 unsolved in 397 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 20/20 constraints, ReadFeed: 8/8 constraints, PredecessorRefiner: 16/16 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 16 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/12 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 1 (OVERLAPS) 4/16 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/16 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 3 (OVERLAPS) 28/44 variables, 16/17 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/44 variables, 8/25 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/44 variables, 0/25 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 6 (OVERLAPS) 4/48 variables, 4/29 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/48 variables, 16/45 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/48 variables, 0/45 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 9 (OVERLAPS) 0/48 variables, 0/45 constraints. Problems are: Problem set: 0 solved, 16 unsolved
No progress, stopping.
After SMT solving in domain Int declared 48/48 variables, and 45 constraints, problems are : Problem set: 0 solved, 16 unsolved in 592 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 20/20 constraints, ReadFeed: 8/8 constraints, PredecessorRefiner: 16/16 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 1006ms problems are : Problem set: 0 solved, 16 unsolved
Search for dead transitions found 0 dead transitions in 1007ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 1102 ms. Remains : 20/20 places, 28/28 transitions.
[2025-06-07 23:20:27] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[181] Max Struct:[204]
RANDOM walk for 1000001 steps (2 resets) in 699 ms. (1428 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 417 ms. (2392 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[181] Max Struct:[204]
[2025-06-07 23:20:28] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:20:28] [INFO ] [Real]Absence check using 1 positive place invariants in 0 ms returned sat
[2025-06-07 23:20:28] [INFO ] [Real]Absence check using state equation in 10 ms returned sat
[2025-06-07 23:20:28] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:20:28] [INFO ] [Nat]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-07 23:20:28] [INFO ] [Nat]Absence check using state equation in 12 ms returned sat
[2025-06-07 23:20:28] [INFO ] State equation strengthened by 8 read => feed constraints.
[2025-06-07 23:20:28] [INFO ] [Nat]Added 8 Read/Feed constraints in 9 ms returned sat
[2025-06-07 23:20:28] [INFO ] Computed and/alt/rep : 16/40/16 causal constraints (skipped 0 transitions) in 3 ms.
[2025-06-07 23:20:28] [INFO ] Added : 2 causal constraints over 1 iterations in 10 ms. Result :sat
Minimization took 23 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[181] Max Struct:[204]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[181] Max Struct:[204]
Support contains 1 out of 20 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 20/20 places, 28/28 transitions.
Applied a total of 0 rules in 2 ms. Remains 20 /20 variables (removed 0) and now considering 28/28 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 2 ms. Remains : 20/20 places, 28/28 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 20/20 places, 28/28 transitions.
Applied a total of 0 rules in 1 ms. Remains 20 /20 variables (removed 0) and now considering 28/28 (removed 0) transitions.
[2025-06-07 23:20:28] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-07 23:20:28] [INFO ] Implicit Places using invariants in 26 ms returned []
[2025-06-07 23:20:28] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-07 23:20:28] [INFO ] State equation strengthened by 8 read => feed constraints.
[2025-06-07 23:20:28] [INFO ] Implicit Places using invariants and state equation in 45 ms returned []
Implicit Place search using SMT with State Equation took 73 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-07 23:20:28] [INFO ] Redundant transitions in 0 ms returned []
Running 16 sub problems to find dead transitions.
[2025-06-07 23:20:28] [INFO ] Invariant cache hit.
[2025-06-07 23:20:28] [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) 0/12 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 1 (OVERLAPS) 4/16 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/16 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 3 (OVERLAPS) 28/44 variables, 16/17 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/44 variables, 8/25 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/44 variables, 0/25 constraints. Problems are: Problem set: 0 solved, 16 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (OVERLAPS) 4/48 variables, 4/29 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/48 variables, 0/29 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 8 (OVERLAPS) 0/48 variables, 0/29 constraints. Problems are: Problem set: 0 solved, 16 unsolved
No progress, stopping.
After SMT solving in domain Real declared 48/48 variables, and 29 constraints, problems are : Problem set: 0 solved, 16 unsolved in 328 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 20/20 constraints, ReadFeed: 8/8 constraints, PredecessorRefiner: 16/16 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 16 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/12 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 1 (OVERLAPS) 4/16 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/16 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 3 (OVERLAPS) 28/44 variables, 16/17 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/44 variables, 8/25 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/44 variables, 0/25 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 6 (OVERLAPS) 4/48 variables, 4/29 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/48 variables, 16/45 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/48 variables, 0/45 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 9 (OVERLAPS) 0/48 variables, 0/45 constraints. Problems are: Problem set: 0 solved, 16 unsolved
No progress, stopping.
After SMT solving in domain Int declared 48/48 variables, and 45 constraints, problems are : Problem set: 0 solved, 16 unsolved in 572 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 20/20 constraints, ReadFeed: 8/8 constraints, PredecessorRefiner: 16/16 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 914ms problems are : Problem set: 0 solved, 16 unsolved
Search for dead transitions found 0 dead transitions in 915ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 996 ms. Remains : 20/20 places, 28/28 transitions.
[2025-06-07 23:20:29] [INFO ] Flatten gal took : 9 ms
RANDOM walk for 40007 steps (8 resets) in 52 ms. (754 steps per ms) remains 2/2 properties
[2025-06-07 23:20:29] [INFO ] Flatten gal took : 11 ms
[2025-06-07 23:20:29] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality12508369645719923716.gal : 1 ms
[2025-06-07 23:20:29] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality5791932185943377879.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/ReachabilityCardinality12508369645719923716.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality5791932185943377879.prop' '--nowitness' '--gen-order' 'FOLLOW'
BEST_FIRST walk for 40004 steps (8 resets) in 50 ms. (784 steps per ms) remains 2/2 properties

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...329
Loading property file /tmp/ReachabilityCardinality5791932185943377879.prop.
SDD proceeding with computation,2 properties remain. new max is 4
SDD size :1 after 6
SDD proceeding with computation,2 properties remain. new max is 8
SDD size :6 after 36
SDD proceeding with computation,2 properties remain. new max is 16
SDD size :36 after 90
BEST_FIRST walk for 40003 steps (8 resets) in 51 ms. (769 steps per ms) remains 2/2 properties
SDD proceeding with computation,2 properties remain. new max is 32
SDD size :90 after 192
SDD proceeding with computation,2 properties remain. new max is 64
SDD size :192 after 30630
SDD proceeding with computation,2 properties remain. new max is 128
SDD size :30630 after 243534
SDD proceeding with computation,2 properties remain. new max is 256
SDD size :243534 after 1.78854e+09
SDD proceeding with computation,2 properties remain. new max is 512
SDD size :1.78854e+09 after 5.66311e+10
SDD proceeding with computation,2 properties remain. new max is 1024
SDD size :5.66311e+10 after 1.14813e+11
Interrupted probabilistic random walk after 617610 steps, run timeout after 3001 ms. (steps per millisecond=205 ) properties seen :0 out of 2
Probabilistic random walk after 617610 steps, saw 418498 distinct states, run finished after 3001 ms. (steps per millisecond=205 ) properties seen :0
[2025-06-07 23:20:32] [INFO ] Invariant cache hit.
[2025-06-07 23:20:32] [INFO ] State equation strengthened by 8 read => feed constraints.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 1 (OVERLAPS) 7/8 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 2 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-07 23:20:32] [INFO ] Deduced a trap composed of 4 places in 29 ms of which 3 ms to minimize.
Problem MAX0 is UNSAT
At refinement iteration 2 (INCLUDED_ONLY) 0/8 variables, 1/2 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/8 variables, 0/2 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 4 (OVERLAPS) 12/20 variables, 8/10 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/20 variables, 0/10 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 8/28 variables, 4/14 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/28 variables, 4/18 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/28 variables, 0/18 constraints. Problems are: Problem set: 1 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 9 (OVERLAPS) 20/48 variables, 12/30 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/48 variables, 0/30 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 0/48 variables, 0/30 constraints. Problems are: Problem set: 1 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 48/48 variables, and 30 constraints, problems are : Problem set: 1 solved, 1 unsolved in 90 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 20/20 constraints, ReadFeed: 8/8 constraints, PredecessorRefiner: 2/2 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 1 solved, 1 unsolved
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 7/8 variables, 1/1 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/8 variables, 1/2 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/8 variables, 0/2 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 4 (OVERLAPS) 12/20 variables, 8/10 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/20 variables, 0/10 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 8/28 variables, 4/14 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/28 variables, 4/18 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/28 variables, 0/18 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 20/48 variables, 12/30 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/48 variables, 1/31 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/48 variables, 0/31 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/48 variables, 0/31 constraints. Problems are: Problem set: 1 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 48/48 variables, and 31 constraints, problems are : Problem set: 1 solved, 1 unsolved in 86 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 20/20 constraints, ReadFeed: 8/8 constraints, PredecessorRefiner: 1/2 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 179ms problems are : Problem set: 1 solved, 1 unsolved
Parikh walk visited 0 properties in 26 ms.
Support contains 1 out of 20 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 20/20 places, 28/28 transitions.
Applied a total of 0 rules in 2 ms. Remains 20 /20 variables (removed 0) and now considering 28/28 (removed 0) transitions.
Running 16 sub problems to find dead transitions.
[2025-06-07 23:20:32] [INFO ] Invariant cache hit.
[2025-06-07 23:20:32] [INFO ] State equation strengthened by 8 read => feed constraints.
Starting Z3 with timeout 20.0 s and query timeout 2000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/12 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 1 (OVERLAPS) 4/16 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/16 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 3 (OVERLAPS) 28/44 variables, 16/17 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/44 variables, 8/25 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/44 variables, 0/25 constraints. Problems are: Problem set: 0 solved, 16 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (OVERLAPS) 4/48 variables, 4/29 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/48 variables, 0/29 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 8 (OVERLAPS) 0/48 variables, 0/29 constraints. Problems are: Problem set: 0 solved, 16 unsolved
No progress, stopping.
After SMT solving in domain Real declared 48/48 variables, and 29 constraints, problems are : Problem set: 0 solved, 16 unsolved in 271 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 20/20 constraints, ReadFeed: 8/8 constraints, PredecessorRefiner: 16/16 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 16 unsolved
Starting Z3 with timeout 20.0 s and query timeout 2000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/12 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 1 (OVERLAPS) 4/16 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/16 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 3 (OVERLAPS) 28/44 variables, 16/17 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/44 variables, 8/25 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/44 variables, 0/25 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 6 (OVERLAPS) 4/48 variables, 4/29 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/48 variables, 16/45 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/48 variables, 0/45 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 9 (OVERLAPS) 0/48 variables, 0/45 constraints. Problems are: Problem set: 0 solved, 16 unsolved
No progress, stopping.
After SMT solving in domain Int declared 48/48 variables, and 45 constraints, problems are : Problem set: 0 solved, 16 unsolved in 368 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 20/20 constraints, ReadFeed: 8/8 constraints, PredecessorRefiner: 16/16 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 644ms problems are : Problem set: 0 solved, 16 unsolved
Search for dead transitions found 0 dead transitions in 644ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 646 ms. Remains : 20/20 places, 28/28 transitions.
RANDOM walk for 40108 steps (8 resets) in 23 ms. (1671 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (8 resets) in 28 ms. (1379 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 2377263 steps, run timeout after 3001 ms. (steps per millisecond=792 ) properties seen :0 out of 1
Probabilistic random walk after 2377263 steps, saw 1618112 distinct states, run finished after 3003 ms. (steps per millisecond=791 ) properties seen :0
[2025-06-07 23:20:36] [INFO ] Invariant cache hit.
[2025-06-07 23:20:36] [INFO ] State equation strengthened by 8 read => feed constraints.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 7/8 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/8 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 12/20 variables, 8/9 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/20 variables, 0/9 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 8/28 variables, 4/13 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/28 variables, 4/17 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/28 variables, 0/17 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 20/48 variables, 12/29 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/48 variables, 0/29 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 0/48 variables, 0/29 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 48/48 variables, and 29 constraints, problems are : Problem set: 0 solved, 1 unsolved in 50 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 20/20 constraints, ReadFeed: 8/8 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 7/8 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-07 23:20:36] [INFO ] Deduced a trap composed of 4 places in 29 ms of which 2 ms to minimize.
At refinement iteration 2 (INCLUDED_ONLY) 0/8 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/8 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (OVERLAPS) 12/20 variables, 8/10 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/20 variables, 0/10 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 8/28 variables, 4/14 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/28 variables, 4/18 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/28 variables, 0/18 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 20/48 variables, 12/30 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/48 variables, 1/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/48 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/48 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 48/48 variables, and 31 constraints, problems are : Problem set: 0 solved, 1 unsolved in 107 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 20/20 constraints, ReadFeed: 8/8 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 182ms problems are : Problem set: 0 solved, 1 unsolved
Finished Parikh walk after 2744 steps, including 33 resets, run visited all 1 properties in 4 ms. (steps per millisecond=686 )
Parikh walk visited 1 properties in 9 ms.
ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
Current structural bounds on expressions (After reachability solving 0 queries.) : Max Seen:[181] Max Struct:[204]
Ending property specific reduction for Murphy-PT-D3N050-UpperBounds-05 in 15209 ms.
Starting property specific reduction for Murphy-PT-D3N050-UpperBounds-06
Current structural bounds on expressions (Initially) : Max Seen:[50] Max Struct:[+inf]
Current structural bounds on expressions (Adding known information on max bounds.) : Max Seen:[50] Max Struct:[204]
Current structural bounds on expressions (Before main loop) : Max Seen:[50] Max Struct:[204]
[2025-06-07 23:20:36] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[50] Max Struct:[204]
RANDOM walk for 10037 steps (2 resets) in 5 ms. (1672 steps per ms)
BEST_FIRST walk for 10001 steps (2 resets) in 5 ms. (1666 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[59] Max Struct:[204]
[2025-06-07 23:20:36] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-07 23:20:36] [INFO ] [Real]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-07 23:20:36] [INFO ] [Real]Absence check using state equation in 11 ms returned sat
[2025-06-07 23:20:36] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-07 23:20:36] [INFO ] [Nat]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-07 23:20:36] [INFO ] [Nat]Absence check using state equation in 13 ms returned sat
[2025-06-07 23:20:36] [INFO ] State equation strengthened by 8 read => feed constraints.
[2025-06-07 23:20:36] [INFO ] [Nat]Added 8 Read/Feed constraints in 3 ms returned sat
[2025-06-07 23:20:36] [INFO ] Computed and/alt/rep : 16/40/16 causal constraints (skipped 0 transitions) in 2 ms.
[2025-06-07 23:20:36] [INFO ] Added : 2 causal constraints over 1 iterations in 10 ms. Result :sat
Minimization took 48 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[59] Max Struct:[204]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[181] Max Struct:[204]
Support contains 1 out of 20 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 20/20 places, 28/28 transitions.
Applied a total of 0 rules in 1 ms. Remains 20 /20 variables (removed 0) and now considering 28/28 (removed 0) transitions.
Running 16 sub problems to find dead transitions.
[2025-06-07 23:20:36] [INFO ] Invariant cache hit.
[2025-06-07 23:20:36] [INFO ] State equation strengthened by 8 read => feed constraints.
Starting Z3 with timeout 20.0 s and query timeout 2000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/12 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 1 (OVERLAPS) 4/16 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/16 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 3 (OVERLAPS) 28/44 variables, 16/17 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/44 variables, 8/25 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/44 variables, 0/25 constraints. Problems are: Problem set: 0 solved, 16 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (OVERLAPS) 4/48 variables, 4/29 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/48 variables, 0/29 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 8 (OVERLAPS) 0/48 variables, 0/29 constraints. Problems are: Problem set: 0 solved, 16 unsolved
No progress, stopping.
After SMT solving in domain Real declared 48/48 variables, and 29 constraints, problems are : Problem set: 0 solved, 16 unsolved in 296 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 20/20 constraints, ReadFeed: 8/8 constraints, PredecessorRefiner: 16/16 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 16 unsolved
Starting Z3 with timeout 20.0 s and query timeout 2000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/12 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 1 (OVERLAPS) 4/16 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/16 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 3 (OVERLAPS) 28/44 variables, 16/17 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/44 variables, 8/25 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/44 variables, 0/25 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 6 (OVERLAPS) 4/48 variables, 4/29 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/48 variables, 16/45 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/48 variables, 0/45 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 9 (OVERLAPS) 0/48 variables, 0/45 constraints. Problems are: Problem set: 0 solved, 16 unsolved
No progress, stopping.
After SMT solving in domain Int declared 48/48 variables, and 45 constraints, problems are : Problem set: 0 solved, 16 unsolved in 539 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 20/20 constraints, ReadFeed: 8/8 constraints, PredecessorRefiner: 16/16 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 850ms problems are : Problem set: 0 solved, 16 unsolved
Search for dead transitions found 0 dead transitions in 850ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 851 ms. Remains : 20/20 places, 28/28 transitions.
[2025-06-07 23:20:37] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[181] Max Struct:[204]
RANDOM walk for 1000009 steps (2 resets) in 572 ms. (1745 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 542 ms. (1841 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[181] Max Struct:[204]
[2025-06-07 23:20:38] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:20:38] [INFO ] [Real]Absence check using 1 positive place invariants in 2 ms returned sat
[2025-06-07 23:20:38] [INFO ] [Real]Absence check using state equation in 17 ms returned sat
[2025-06-07 23:20:38] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:20:38] [INFO ] [Nat]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-07 23:20:38] [INFO ] [Nat]Absence check using state equation in 25 ms returned sat
[2025-06-07 23:20:38] [INFO ] State equation strengthened by 8 read => feed constraints.
[2025-06-07 23:20:38] [INFO ] [Nat]Added 8 Read/Feed constraints in 5 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-07 23:20:38] [INFO ] Deduced a trap composed of 4 places in 40 ms of which 3 ms to minimize.
[2025-06-07 23:20:38] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 49 ms
[2025-06-07 23:20:38] [INFO ] Computed and/alt/rep : 16/40/16 causal constraints (skipped 0 transitions) in 4 ms.
[2025-06-07 23:20:38] [INFO ] Added : 5 causal constraints over 1 iterations in 18 ms. Result :sat
Minimization took 50 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[181] Max Struct:[204]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[181] Max Struct:[204]
Support contains 1 out of 20 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 20/20 places, 28/28 transitions.
Applied a total of 0 rules in 2 ms. Remains 20 /20 variables (removed 0) and now considering 28/28 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 2 ms. Remains : 20/20 places, 28/28 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 20/20 places, 28/28 transitions.
Applied a total of 0 rules in 1 ms. Remains 20 /20 variables (removed 0) and now considering 28/28 (removed 0) transitions.
[2025-06-07 23:20:39] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-07 23:20:39] [INFO ] Implicit Places using invariants in 38 ms returned []
[2025-06-07 23:20:39] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-07 23:20:39] [INFO ] State equation strengthened by 8 read => feed constraints.
[2025-06-07 23:20:39] [INFO ] Implicit Places using invariants and state equation in 55 ms returned []
Implicit Place search using SMT with State Equation took 95 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-07 23:20:39] [INFO ] Redundant transitions in 0 ms returned []
Running 16 sub problems to find dead transitions.
[2025-06-07 23:20:39] [INFO ] Invariant cache hit.
[2025-06-07 23:20:39] [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) 0/12 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 1 (OVERLAPS) 4/16 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/16 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 3 (OVERLAPS) 28/44 variables, 16/17 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/44 variables, 8/25 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/44 variables, 0/25 constraints. Problems are: Problem set: 0 solved, 16 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (OVERLAPS) 4/48 variables, 4/29 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/48 variables, 0/29 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 8 (OVERLAPS) 0/48 variables, 0/29 constraints. Problems are: Problem set: 0 solved, 16 unsolved
No progress, stopping.
After SMT solving in domain Real declared 48/48 variables, and 29 constraints, problems are : Problem set: 0 solved, 16 unsolved in 415 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 20/20 constraints, ReadFeed: 8/8 constraints, PredecessorRefiner: 16/16 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 16 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/12 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 1 (OVERLAPS) 4/16 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/16 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 3 (OVERLAPS) 28/44 variables, 16/17 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/44 variables, 8/25 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/44 variables, 0/25 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 6 (OVERLAPS) 4/48 variables, 4/29 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/48 variables, 16/45 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/48 variables, 0/45 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 9 (OVERLAPS) 0/48 variables, 0/45 constraints. Problems are: Problem set: 0 solved, 16 unsolved
No progress, stopping.
After SMT solving in domain Int declared 48/48 variables, and 45 constraints, problems are : Problem set: 0 solved, 16 unsolved in 600 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 20/20 constraints, ReadFeed: 8/8 constraints, PredecessorRefiner: 16/16 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 1021ms problems are : Problem set: 0 solved, 16 unsolved
Search for dead transitions found 0 dead transitions in 1021ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 1126 ms. Remains : 20/20 places, 28/28 transitions.
[2025-06-07 23:20:40] [INFO ] Flatten gal took : 6 ms
[2025-06-07 23:20:40] [INFO ] Flatten gal took : 5 ms
[2025-06-07 23:20:40] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality17162511966234975359.gal : 2 ms
[2025-06-07 23:20:40] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality5264081258139999147.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/ReachabilityCardinality17162511966234975359.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality5264081258139999147.prop' '--nowitness' '--gen-order' 'FOLLOW'
RANDOM walk for 40149 steps (8 resets) in 225 ms. (177 steps per ms) remains 2/2 properties

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...329
Loading property file /tmp/ReachabilityCardinality5264081258139999147.prop.
SDD proceeding with computation,2 properties remain. new max is 4
SDD size :1 after 6
SDD proceeding with computation,2 properties remain. new max is 8
SDD size :6 after 36
SDD proceeding with computation,2 properties remain. new max is 16
SDD size :36 after 90
SDD proceeding with computation,2 properties remain. new max is 32
SDD size :90 after 192
SDD proceeding with computation,2 properties remain. new max is 64
SDD size :192 after 30630
BEST_FIRST walk for 40004 steps (8 resets) in 158 ms. (251 steps per ms) remains 2/2 properties
BEST_FIRST walk for 40003 steps (8 resets) in 119 ms. (333 steps per ms) remains 2/2 properties
SDD proceeding with computation,2 properties remain. new max is 128
SDD size :30630 after 243534
SDD proceeding with computation,2 properties remain. new max is 256
SDD size :243534 after 1.78854e+09
SDD proceeding with computation,2 properties remain. new max is 512
SDD size :1.78854e+09 after 5.66311e+10
SDD proceeding with computation,2 properties remain. new max is 1024
SDD size :5.66311e+10 after 1.14813e+11
Interrupted probabilistic random walk after 563089 steps, run timeout after 3001 ms. (steps per millisecond=187 ) properties seen :0 out of 2
Probabilistic random walk after 563089 steps, saw 383233 distinct states, run finished after 3001 ms. (steps per millisecond=187 ) properties seen :0
[2025-06-07 23:20:43] [INFO ] Invariant cache hit.
[2025-06-07 23:20:43] [INFO ] State equation strengthened by 8 read => feed constraints.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 1 (OVERLAPS) 7/8 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 2 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-07 23:20:43] [INFO ] Deduced a trap composed of 4 places in 40 ms of which 3 ms to minimize.
Problem MAX0 is UNSAT
At refinement iteration 2 (INCLUDED_ONLY) 0/8 variables, 1/2 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/8 variables, 0/2 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 4 (OVERLAPS) 12/20 variables, 8/10 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/20 variables, 0/10 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 8/28 variables, 4/14 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/28 variables, 4/18 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/28 variables, 0/18 constraints. Problems are: Problem set: 1 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 9 (OVERLAPS) 20/48 variables, 12/30 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/48 variables, 0/30 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 0/48 variables, 0/30 constraints. Problems are: Problem set: 1 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 48/48 variables, and 30 constraints, problems are : Problem set: 1 solved, 1 unsolved in 132 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 20/20 constraints, ReadFeed: 8/8 constraints, PredecessorRefiner: 2/2 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 1 solved, 1 unsolved
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 7/8 variables, 1/1 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/8 variables, 1/2 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/8 variables, 0/2 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 4 (OVERLAPS) 12/20 variables, 8/10 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/20 variables, 0/10 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 8/28 variables, 4/14 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/28 variables, 4/18 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/28 variables, 0/18 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 20/48 variables, 12/30 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/48 variables, 1/31 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/48 variables, 0/31 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/48 variables, 0/31 constraints. Problems are: Problem set: 1 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 48/48 variables, and 31 constraints, problems are : Problem set: 1 solved, 1 unsolved in 64 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 20/20 constraints, ReadFeed: 8/8 constraints, PredecessorRefiner: 1/2 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 203ms problems are : Problem set: 1 solved, 1 unsolved
Parikh walk visited 0 properties in 29 ms.
Support contains 1 out of 20 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 20/20 places, 28/28 transitions.
Applied a total of 0 rules in 2 ms. Remains 20 /20 variables (removed 0) and now considering 28/28 (removed 0) transitions.
Running 16 sub problems to find dead transitions.
[2025-06-07 23:20:43] [INFO ] Invariant cache hit.
[2025-06-07 23:20:43] [INFO ] State equation strengthened by 8 read => feed constraints.
Starting Z3 with timeout 20.0 s and query timeout 2000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/12 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 1 (OVERLAPS) 4/16 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/16 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 3 (OVERLAPS) 28/44 variables, 16/17 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/44 variables, 8/25 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/44 variables, 0/25 constraints. Problems are: Problem set: 0 solved, 16 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (OVERLAPS) 4/48 variables, 4/29 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/48 variables, 0/29 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 8 (OVERLAPS) 0/48 variables, 0/29 constraints. Problems are: Problem set: 0 solved, 16 unsolved
No progress, stopping.
After SMT solving in domain Real declared 48/48 variables, and 29 constraints, problems are : Problem set: 0 solved, 16 unsolved in 258 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 20/20 constraints, ReadFeed: 8/8 constraints, PredecessorRefiner: 16/16 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 16 unsolved
Starting Z3 with timeout 20.0 s and query timeout 2000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/12 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 1 (OVERLAPS) 4/16 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/16 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 3 (OVERLAPS) 28/44 variables, 16/17 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/44 variables, 8/25 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/44 variables, 0/25 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 6 (OVERLAPS) 4/48 variables, 4/29 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/48 variables, 16/45 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/48 variables, 0/45 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 9 (OVERLAPS) 0/48 variables, 0/45 constraints. Problems are: Problem set: 0 solved, 16 unsolved
No progress, stopping.
After SMT solving in domain Int declared 48/48 variables, and 45 constraints, problems are : Problem set: 0 solved, 16 unsolved in 482 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 20/20 constraints, ReadFeed: 8/8 constraints, PredecessorRefiner: 16/16 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 744ms problems are : Problem set: 0 solved, 16 unsolved
Search for dead transitions found 0 dead transitions in 745ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 747 ms. Remains : 20/20 places, 28/28 transitions.
RANDOM walk for 40048 steps (8 resets) in 30 ms. (1291 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (8 resets) in 95 ms. (416 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 2143802 steps, run timeout after 3007 ms. (steps per millisecond=712 ) properties seen :0 out of 1
Probabilistic random walk after 2143802 steps, saw 1459389 distinct states, run finished after 3010 ms. (steps per millisecond=712 ) properties seen :0
[2025-06-07 23:20:47] [INFO ] Invariant cache hit.
[2025-06-07 23:20:47] [INFO ] State equation strengthened by 8 read => feed constraints.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 7/8 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/8 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 12/20 variables, 8/9 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/20 variables, 0/9 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 8/28 variables, 4/13 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/28 variables, 4/17 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/28 variables, 0/17 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 20/48 variables, 12/29 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/48 variables, 0/29 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 0/48 variables, 0/29 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 48/48 variables, and 29 constraints, problems are : Problem set: 0 solved, 1 unsolved in 55 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 20/20 constraints, ReadFeed: 8/8 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 7/8 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-07 23:20:47] [INFO ] Deduced a trap composed of 4 places in 31 ms of which 3 ms to minimize.
At refinement iteration 2 (INCLUDED_ONLY) 0/8 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/8 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (OVERLAPS) 12/20 variables, 8/10 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/20 variables, 0/10 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 8/28 variables, 4/14 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/28 variables, 4/18 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/28 variables, 0/18 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 20/48 variables, 12/30 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/48 variables, 1/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/48 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/48 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 48/48 variables, and 31 constraints, problems are : Problem set: 0 solved, 1 unsolved in 93 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 20/20 constraints, ReadFeed: 8/8 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 153ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 31 ms.
Support contains 1 out of 20 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 20/20 places, 28/28 transitions.
Applied a total of 0 rules in 2 ms. Remains 20 /20 variables (removed 0) and now considering 28/28 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 2 ms. Remains : 20/20 places, 28/28 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 20/20 places, 28/28 transitions.
Applied a total of 0 rules in 1 ms. Remains 20 /20 variables (removed 0) and now considering 28/28 (removed 0) transitions.
[2025-06-07 23:20:47] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-07 23:20:47] [INFO ] Implicit Places using invariants in 26 ms returned []
[2025-06-07 23:20:47] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-07 23:20:47] [INFO ] State equation strengthened by 8 read => feed constraints.
[2025-06-07 23:20:47] [INFO ] Implicit Places using invariants and state equation in 36 ms returned []
Implicit Place search using SMT with State Equation took 70 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-07 23:20:47] [INFO ] Redundant transitions in 1 ms returned []
Running 16 sub problems to find dead transitions.
[2025-06-07 23:20:47] [INFO ] Invariant cache hit.
[2025-06-07 23:20:47] [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) 0/12 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 1 (OVERLAPS) 4/16 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/16 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 3 (OVERLAPS) 28/44 variables, 16/17 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/44 variables, 8/25 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/44 variables, 0/25 constraints. Problems are: Problem set: 0 solved, 16 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (OVERLAPS) 4/48 variables, 4/29 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/48 variables, 0/29 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 8 (OVERLAPS) 0/48 variables, 0/29 constraints. Problems are: Problem set: 0 solved, 16 unsolved
No progress, stopping.
After SMT solving in domain Real declared 48/48 variables, and 29 constraints, problems are : Problem set: 0 solved, 16 unsolved in 248 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 20/20 constraints, ReadFeed: 8/8 constraints, PredecessorRefiner: 16/16 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 16 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/12 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 1 (OVERLAPS) 4/16 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/16 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 3 (OVERLAPS) 28/44 variables, 16/17 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/44 variables, 8/25 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/44 variables, 0/25 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 6 (OVERLAPS) 4/48 variables, 4/29 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/48 variables, 16/45 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/48 variables, 0/45 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 9 (OVERLAPS) 0/48 variables, 0/45 constraints. Problems are: Problem set: 0 solved, 16 unsolved
No progress, stopping.
After SMT solving in domain Int declared 48/48 variables, and 45 constraints, problems are : Problem set: 0 solved, 16 unsolved in 353 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 20/20 constraints, ReadFeed: 8/8 constraints, PredecessorRefiner: 16/16 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 608ms problems are : Problem set: 0 solved, 16 unsolved
Search for dead transitions found 0 dead transitions in 608ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 683 ms. Remains : 20/20 places, 28/28 transitions.
Attempting over-approximation, by ignoring read arcs.
Graph (complete) has 48 edges and 20 vertex of which 8 are kept as prefixes of interest. Removing 12 places using SCC suffix rule.0 ms
Discarding 12 places :
Also discarding 16 output transitions
Drop transitions (Output transitions of discarded places.) removed 16 transitions
Applied a total of 1 rules in 1 ms. Remains 8 /20 variables (removed 12) and now considering 12/28 (removed 16) transitions.
Running SMT prover for 1 properties.
// Phase 1: matrix 12 rows 8 cols
[2025-06-07 23:20:48] [INFO ] Computed 1 invariants in 0 ms
Starting Z3 with timeout 450.0 s and query timeout 45000.0 ms
[2025-06-07 23:20:48] [INFO ] [Real]Absence check using 1 positive place invariants in 0 ms returned sat
[2025-06-07 23:20:48] [INFO ] After 28ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
Starting Z3 with timeout 450.0 s and query timeout 45000.0 ms
[2025-06-07 23:20:48] [INFO ] [Nat]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-07 23:20:48] [INFO ] After 7ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
[2025-06-07 23:20:48] [INFO ] State equation strengthened by 4 read => feed constraints.
[2025-06-07 23:20:48] [INFO ] After 3ms SMT Verify possible using 4 Read/Feed constraints in natural domain returned unsat :0 sat :1
TRAPS : Iteration 0
[2025-06-07 23:20:48] [INFO ] After 6ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
[2025-06-07 23:20:48] [INFO ] After 36ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
[2025-06-07 23:20:48] [INFO ] Flatten gal took : 3 ms
[2025-06-07 23:20:48] [INFO ] Flatten gal took : 2 ms
[2025-06-07 23:20:48] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality6972695504143438191.gal : 2 ms
[2025-06-07 23:20:48] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality14166042941007885996.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/ReachabilityCardinality6972695504143438191.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality14166042941007885996.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/ReachabilityCardinality14166042941007885996.prop.
SDD proceeding with computation,1 properties remain. new max is 4
SDD size :1 after 5
SDD proceeding with computation,1 properties remain. new max is 8
SDD size :5 after 10
SDD proceeding with computation,1 properties remain. new max is 16
SDD size :10 after 19
SDD proceeding with computation,1 properties remain. new max is 32
SDD size :19 after 36
SDD proceeding with computation,1 properties remain. new max is 64
SDD size :36 after 9957
SDD proceeding with computation,1 properties remain. new max is 128
SDD size :9957 after 46231
SDD proceeding with computation,1 properties remain. new max is 256
SDD size :46231 after 6.44381e+07
SDD proceeding with computation,1 properties remain. new max is 512
SDD size :1.00836e+09 after 1.01532e+09
SDD proceeding with computation,1 properties remain. new max is 1024
SDD size :2.47892e+09 after 2.49454e+09
SDD proceeding with computation,1 properties remain. new max is 2048
SDD size :4.57255e+09 after 4.58937e+09
SDD proceeding with computation,1 properties remain. new max is 4096
SDD size :1.48506e+10 after 1.4871e+10
SDD proceeding with computation,2 properties remain. new max is 2048
SDD size :1.14813e+11 after 4.52978e+11
SDD proceeding with computation,2 properties remain. new max is 4096
SDD size :4.52978e+11 after 8.06626e+11
SDD proceeding with computation,1 properties remain. new max is 8192
SDD size :5.58847e+10 after 5.59122e+10
Detected timeout of ITS tools.
[2025-06-07 23:21:03] [INFO ] Flatten gal took : 1 ms
[2025-06-07 23:21:03] [INFO ] Applying decomposition
[2025-06-07 23:21:03] [INFO ] Flatten gal took : 1 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/graph7269932156598796061.txt' '-o' '/tmp/graph7269932156598796061.bin' '-w' '/tmp/graph7269932156598796061.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/louvain-linux64' '/tmp/graph7269932156598796061.bin' '-l' '-1' '-v' '-w' '/tmp/graph7269932156598796061.weights' '-q' '0' '-e' '0.001'
[2025-06-07 23:21:03] [INFO ] Decomposing Gal with order
[2025-06-07 23:21:03] [INFO ] Rewriting arrays to variables to allow decomposition.
[2025-06-07 23:21:03] [INFO ] Flatten gal took : 5 ms
[2025-06-07 23:21:03] [INFO ] Fuse similar labels procedure discarded/fused a total of 0 labels/synchronizations in 0 ms.
[2025-06-07 23:21:03] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality5294078312809280683.gal : 1 ms
[2025-06-07 23:21:03] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality17617497367721120426.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/ReachabilityCardinality5294078312809280683.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality17617497367721120426.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 ...308
Loading property file /tmp/ReachabilityCardinality17617497367721120426.prop.
SDD proceeding with computation,1 properties remain. new max is 4
SDD size :1 after 5
SDD proceeding with computation,1 properties remain. new max is 8
SDD size :5 after 10
SDD proceeding with computation,1 properties remain. new max is 16
SDD size :10 after 19
SDD proceeding with computation,1 properties remain. new max is 32
SDD size :19 after 36
SDD proceeding with computation,1 properties remain. new max is 64
SDD size :36 after 969
SDD proceeding with computation,1 properties remain. new max is 128
SDD size :969 after 374408
SDD proceeding with computation,1 properties remain. new max is 256
SDD size :374408 after 6.41708e+07
SDD proceeding with computation,1 properties remain. new max is 512
SDD size :1.01288e+10 after 1.03009e+10
SDD proceeding with computation,1 properties remain. new max is 1024
SDD size :1.03009e+10 after 1.03009e+10
SDD proceeding with computation,1 properties remain. new max is 2048
SDD size :1.03009e+10 after 1.03219e+10
SDD proceeding with computation,1 properties remain. new max is 4096
SDD size :1.03219e+10 after 1.03219e+10
SDD proceeding with computation,1 properties remain. new max is 8192
SDD size :1.03219e+10 after 1.04785e+10
SDD proceeding with computation,1 properties remain. new max is 16384
SDD size :2.70011e+10 after 2.72716e+10
Detected timeout of ITS tools.
Over-approximation ignoring read arcs solved 0 properties in 30187 ms.
ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
[2025-06-07 23:21:18] [INFO ] Flatten gal took : 2 ms
[2025-06-07 23:21:18] [INFO ] Applying decomposition
[2025-06-07 23:21:18] [INFO ] Flatten gal took : 2 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/graph8514112200834775722.txt' '-o' '/tmp/graph8514112200834775722.bin' '-w' '/tmp/graph8514112200834775722.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/louvain-linux64' '/tmp/graph8514112200834775722.bin' '-l' '-1' '-v' '-w' '/tmp/graph8514112200834775722.weights' '-q' '0' '-e' '0.001'
[2025-06-07 23:21:18] [INFO ] Decomposing Gal with order
[2025-06-07 23:21:18] [INFO ] Rewriting arrays to variables to allow decomposition.
[2025-06-07 23:21:18] [INFO ] Flatten gal took : 4 ms
[2025-06-07 23:21:18] [INFO ] Fuse similar labels procedure discarded/fused a total of 0 labels/synchronizations in 1 ms.
[2025-06-07 23:21:18] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality14137266721386179218.gal : 1 ms
[2025-06-07 23:21:18] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality11837039907404695361.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/ReachabilityCardinality14137266721386179218.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality11837039907404695361.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 ...309
Loading property file /tmp/ReachabilityCardinality11837039907404695361.prop.
SDD proceeding with computation,1 properties remain. new max is 4
SDD size :1 after 12
SDD proceeding with computation,1 properties remain. new max is 8
SDD size :12 after 144
SDD proceeding with computation,1 properties remain. new max is 16
SDD size :144 after 468
SDD proceeding with computation,1 properties remain. new max is 32
SDD size :468 after 1080
SDD proceeding with computation,1 properties remain. new max is 64
SDD size :1080 after 23868
SDD proceeding with computation,1 properties remain. new max is 128
SDD size :23868 after 2.99527e+06
SDD proceeding with computation,1 properties remain. new max is 256
SDD size :2.99527e+06 after 7.64222e+11
SDD proceeding with computation,1 properties remain. new max is 512
SDD size :7.64222e+11 after 2.54944e+12
Detected timeout of ITS tools.
Current structural bounds on expressions (After reachability solving 0 queries.) : Max Seen:[181] Max Struct:[204]
Ending property specific reduction for Murphy-PT-D3N050-UpperBounds-06 in 91922 ms.
Starting property specific reduction for Murphy-PT-D3N050-UpperBounds-07
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 28 rows 20 cols
[2025-06-07 23:22:08] [INFO ] Computed 1 invariants in 1 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[+inf]
RANDOM walk for 10000 steps (2 resets) in 6 ms. (1428 steps per ms)
BEST_FIRST walk for 10001 steps (2 resets) in 5 ms. (1666 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[2] Max Struct:[+inf]
[2025-06-07 23:22:08] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-07 23:22:08] [INFO ] [Real]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-07 23:22:08] [INFO ] [Real]Absence check using state equation in 11 ms returned sat
[2025-06-07 23:22:08] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-07 23:22:08] [INFO ] [Nat]Absence check using 1 positive place invariants in 2 ms returned sat
[2025-06-07 23:22:08] [INFO ] [Nat]Absence check using state equation in 11 ms returned sat
[2025-06-07 23:22:08] [INFO ] State equation strengthened by 8 read => feed constraints.
[2025-06-07 23:22:08] [INFO ] [Nat]Added 8 Read/Feed constraints in 2 ms returned sat
[2025-06-07 23:22:08] [INFO ] Computed and/alt/rep : 16/40/16 causal constraints (skipped 0 transitions) in 3 ms.
[2025-06-07 23:22:08] [INFO ] Added : 2 causal constraints over 1 iterations in 10 ms. Result :sat
Minimization took 7 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[2] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[2] Max Struct:[+inf]
Support contains 1 out of 20 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 20/20 places, 28/28 transitions.
Graph (complete) has 56 edges and 20 vertex of which 3 are kept as prefixes of interest. Removing 17 places using SCC suffix rule.0 ms
Discarding 17 places :
Also discarding 23 output transitions
Drop transitions (Output transitions of discarded places.) removed 23 transitions
Drop transitions (Empty/Sink Transition effects.) removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 3 transition count 4
Applied a total of 2 rules in 0 ms. Remains 3 /20 variables (removed 17) and now considering 4/28 (removed 24) transitions.
Running 3 sub problems to find dead transitions.
// Phase 1: matrix 4 rows 3 cols
[2025-06-07 23:22:08] [INFO ] Computed 0 invariants in 0 ms
[2025-06-07 23:22:08] [INFO ] State equation strengthened by 1 read => feed constraints.
Starting Z3 with timeout 20.0 s and query timeout 2000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (OVERLAPS) 4/6 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/6 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (OVERLAPS) 1/7 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/7 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 6 (OVERLAPS) 0/7 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Real declared 7/7 variables, and 4 constraints, problems are : Problem set: 0 solved, 3 unsolved in 41 ms.
Refiners :[State Equation: 3/3 constraints, ReadFeed: 1/1 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 3 unsolved
Starting Z3 with timeout 20.0 s and query timeout 2000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (OVERLAPS) 4/6 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/6 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (OVERLAPS) 1/7 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/7 variables, 3/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/7 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 7 (OVERLAPS) 0/7 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Int declared 7/7 variables, and 7 constraints, problems are : Problem set: 0 solved, 3 unsolved in 50 ms.
Refiners :[State Equation: 3/3 constraints, ReadFeed: 1/1 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 95ms problems are : Problem set: 0 solved, 3 unsolved
Search for dead transitions found 0 dead transitions in 95ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 96 ms. Remains : 3/20 places, 4/28 transitions.
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {0=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {0=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 4 ms. (steps per millisecond=2500 ) properties (out of 1) seen :[2]
Current structural bounds on expressions (after cover walk) : Max Seen:[2] Max Struct:[+inf]
[2025-06-07 23:22:08] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[2] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 370 ms. (2695 steps per ms)
BEST_FIRST walk for 1000000 steps (2 resets) in 345 ms. (2890 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[2] Max Struct:[+inf]
[2025-06-07 23:22:09] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:22:09] [INFO ] [Real]Absence check using state equation in 3 ms returned sat
[2025-06-07 23:22:09] [INFO ] State equation strengthened by 1 read => feed constraints.
[2025-06-07 23:22:09] [INFO ] [Real]Added 1 Read/Feed constraints in 0 ms returned sat
[2025-06-07 23:22:09] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:22:09] [INFO ] [Nat]Absence check using state equation in 2 ms returned sat
[2025-06-07 23:22:09] [INFO ] [Nat]Added 1 Read/Feed constraints in 2 ms returned sat
[2025-06-07 23:22:09] [INFO ] Computed and/alt/rep : 3/6/3 causal constraints (skipped 0 transitions) in 1 ms.
[2025-06-07 23:22:09] [INFO ] Added : 2 causal constraints over 1 iterations in 4 ms. Result :sat
Minimization took 3 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[2] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[2] Max Struct:[+inf]
Support contains 1 out of 3 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 3/3 places, 4/4 transitions.
Applied a total of 0 rules in 1 ms. Remains 3 /3 variables (removed 0) and now considering 4/4 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 1 ms. Remains : 3/3 places, 4/4 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 3/3 places, 4/4 transitions.
Applied a total of 0 rules in 0 ms. Remains 3 /3 variables (removed 0) and now considering 4/4 (removed 0) transitions.
[2025-06-07 23:22:09] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-07 23:22:09] [INFO ] Implicit Places using invariants in 14 ms returned []
[2025-06-07 23:22:09] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-07 23:22:09] [INFO ] State equation strengthened by 1 read => feed constraints.
[2025-06-07 23:22:09] [INFO ] Implicit Places using invariants and state equation in 18 ms returned []
Implicit Place search using SMT with State Equation took 34 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-07 23:22:09] [INFO ] Redundant transitions in 0 ms returned []
Running 3 sub problems to find dead transitions.
[2025-06-07 23:22:09] [INFO ] Invariant cache hit.
[2025-06-07 23:22:09] [INFO ] State equation strengthened by 1 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (OVERLAPS) 4/6 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/6 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (OVERLAPS) 1/7 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/7 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 6 (OVERLAPS) 0/7 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Real declared 7/7 variables, and 4 constraints, problems are : Problem set: 0 solved, 3 unsolved in 41 ms.
Refiners :[State Equation: 3/3 constraints, ReadFeed: 1/1 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 3 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (OVERLAPS) 4/6 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/6 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (OVERLAPS) 1/7 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/7 variables, 3/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/7 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 7 (OVERLAPS) 0/7 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Int declared 7/7 variables, and 7 constraints, problems are : Problem set: 0 solved, 3 unsolved in 54 ms.
Refiners :[State Equation: 3/3 constraints, ReadFeed: 1/1 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 97ms problems are : Problem set: 0 solved, 3 unsolved
Search for dead transitions found 0 dead transitions in 97ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 136 ms. Remains : 3/3 places, 4/4 transitions.
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {0=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {0=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 5 ms. (steps per millisecond=2000 ) properties (out of 1) seen :[2]
Current structural bounds on expressions (after cover walk) : Max Seen:[2] Max Struct:[+inf]
[2025-06-07 23:22:09] [INFO ] Flatten gal took : 0 ms
[2025-06-07 23:22:09] [INFO ] Flatten gal took : 0 ms
[2025-06-07 23:22:09] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality17805921002738662488.gal : 5 ms
[2025-06-07 23:22:09] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality16881534987859004720.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/ReachabilityCardinality17805921002738662488.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality16881534987859004720.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 ...330
Loading property file /tmp/ReachabilityCardinality16881534987859004720.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,6,0.002349,4136,2,8,5,44,7,0,24,26,0
Total reachable state count : 6

Verifying 1 reachability properties.
Invariant property MIN0 is true.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
MIN0,0,0.003045,4136,1,0,5,44,7,0,25,26,0
RANDOM walk for 40000 steps (8 resets) in 35 ms. (1111 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (8 resets) in 22 ms. (1739 steps per ms) remains 1/1 properties
Probably explored full state space saw : 6 states, properties seen :0
Probabilistic random walk after 14 steps, saw 6 distinct states, run finished after 15 ms. (steps per millisecond=0 ) properties seen :0
Explored full state space saw : 6 states, properties seen :0
Exhaustive walk after 14 steps, saw 6 distinct states, run finished after 1 ms. (steps per millisecond=14 ) properties seen :0
FORMULA Murphy-PT-D3N050-UpperBounds-07 2 TECHNIQUES REACHABILITY_MIN
Current structural bounds on expressions (After reachability solving 1 queries.) : Max Seen:[] Max Struct:[]
Ending property specific reduction for Murphy-PT-D3N050-UpperBounds-07 in 1198 ms.
Starting property specific reduction for Murphy-PT-D3N050-UpperBounds-08
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 28 rows 20 cols
[2025-06-07 23:22:09] [INFO ] Computed 1 invariants in 1 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[+inf]
RANDOM walk for 10017 steps (2 resets) in 7 ms. (1252 steps per ms)
BEST_FIRST walk for 10001 steps (2 resets) in 19 ms. (500 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[2] Max Struct:[+inf]
[2025-06-07 23:22:09] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-07 23:22:09] [INFO ] [Real]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-07 23:22:09] [INFO ] [Real]Absence check using state equation in 16 ms returned sat
[2025-06-07 23:22:09] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-07 23:22:09] [INFO ] [Nat]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-07 23:22:09] [INFO ] [Nat]Absence check using state equation in 11 ms returned sat
[2025-06-07 23:22:09] [INFO ] State equation strengthened by 8 read => feed constraints.
[2025-06-07 23:22:09] [INFO ] [Nat]Added 8 Read/Feed constraints in 1 ms returned sat
[2025-06-07 23:22:09] [INFO ] Computed and/alt/rep : 16/40/16 causal constraints (skipped 0 transitions) in 2 ms.
[2025-06-07 23:22:09] [INFO ] Added : 2 causal constraints over 1 iterations in 9 ms. Result :sat
Minimization took 7 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[2] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[2] Max Struct:[+inf]
Support contains 1 out of 20 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 20/20 places, 28/28 transitions.
Graph (complete) has 56 edges and 20 vertex of which 3 are kept as prefixes of interest. Removing 17 places using SCC suffix rule.1 ms
Discarding 17 places :
Also discarding 23 output transitions
Drop transitions (Output transitions of discarded places.) removed 23 transitions
Drop transitions (Empty/Sink Transition effects.) removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 3 transition count 4
Applied a total of 2 rules in 1 ms. Remains 3 /20 variables (removed 17) and now considering 4/28 (removed 24) transitions.
Running 3 sub problems to find dead transitions.
// Phase 1: matrix 4 rows 3 cols
[2025-06-07 23:22:09] [INFO ] Computed 0 invariants in 1 ms
[2025-06-07 23:22:09] [INFO ] State equation strengthened by 1 read => feed constraints.
Starting Z3 with timeout 20.0 s and query timeout 2000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (OVERLAPS) 4/6 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/6 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (OVERLAPS) 1/7 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/7 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 6 (OVERLAPS) 0/7 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Real declared 7/7 variables, and 4 constraints, problems are : Problem set: 0 solved, 3 unsolved in 46 ms.
Refiners :[State Equation: 3/3 constraints, ReadFeed: 1/1 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 3 unsolved
Starting Z3 with timeout 20.0 s and query timeout 2000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (OVERLAPS) 4/6 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/6 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (OVERLAPS) 1/7 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/7 variables, 3/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/7 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 7 (OVERLAPS) 0/7 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Int declared 7/7 variables, and 7 constraints, problems are : Problem set: 0 solved, 3 unsolved in 60 ms.
Refiners :[State Equation: 3/3 constraints, ReadFeed: 1/1 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 116ms problems are : Problem set: 0 solved, 3 unsolved
Search for dead transitions found 0 dead transitions in 118ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 119 ms. Remains : 3/20 places, 4/28 transitions.
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {0=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {0=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 7 ms. (steps per millisecond=1428 ) properties (out of 1) seen :[2]
Current structural bounds on expressions (after cover walk) : Max Seen:[2] Max Struct:[+inf]
[2025-06-07 23:22:09] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[2] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 472 ms. (2114 steps per ms)
BEST_FIRST walk for 1000000 steps (2 resets) in 361 ms. (2762 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[2] Max Struct:[+inf]
[2025-06-07 23:22:10] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:22:10] [INFO ] [Real]Absence check using state equation in 4 ms returned sat
[2025-06-07 23:22:10] [INFO ] State equation strengthened by 1 read => feed constraints.
[2025-06-07 23:22:10] [INFO ] [Real]Added 1 Read/Feed constraints in 2 ms returned sat
[2025-06-07 23:22:10] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:22:10] [INFO ] [Nat]Absence check using state equation in 4 ms returned sat
[2025-06-07 23:22:10] [INFO ] [Nat]Added 1 Read/Feed constraints in 1 ms returned sat
[2025-06-07 23:22:10] [INFO ] Computed and/alt/rep : 3/6/3 causal constraints (skipped 0 transitions) in 0 ms.
[2025-06-07 23:22:10] [INFO ] Added : 2 causal constraints over 1 iterations in 5 ms. Result :sat
Minimization took 4 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[2] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[2] Max Struct:[+inf]
Support contains 1 out of 3 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 3/3 places, 4/4 transitions.
Applied a total of 0 rules in 0 ms. Remains 3 /3 variables (removed 0) and now considering 4/4 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 0 ms. Remains : 3/3 places, 4/4 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 3/3 places, 4/4 transitions.
Applied a total of 0 rules in 1 ms. Remains 3 /3 variables (removed 0) and now considering 4/4 (removed 0) transitions.
[2025-06-07 23:22:10] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-07 23:22:10] [INFO ] Implicit Places using invariants in 19 ms returned []
[2025-06-07 23:22:10] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-07 23:22:10] [INFO ] State equation strengthened by 1 read => feed constraints.
[2025-06-07 23:22:10] [INFO ] Implicit Places using invariants and state equation in 26 ms returned []
Implicit Place search using SMT with State Equation took 48 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-07 23:22:10] [INFO ] Redundant transitions in 0 ms returned []
Running 3 sub problems to find dead transitions.
[2025-06-07 23:22:10] [INFO ] Invariant cache hit.
[2025-06-07 23:22:10] [INFO ] State equation strengthened by 1 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (OVERLAPS) 4/6 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/6 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (OVERLAPS) 1/7 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/7 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 6 (OVERLAPS) 0/7 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Real declared 7/7 variables, and 4 constraints, problems are : Problem set: 0 solved, 3 unsolved in 57 ms.
Refiners :[State Equation: 3/3 constraints, ReadFeed: 1/1 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 3 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (OVERLAPS) 4/6 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/6 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (OVERLAPS) 1/7 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/7 variables, 3/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/7 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 7 (OVERLAPS) 0/7 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Int declared 7/7 variables, and 7 constraints, problems are : Problem set: 0 solved, 3 unsolved in 77 ms.
Refiners :[State Equation: 3/3 constraints, ReadFeed: 1/1 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 137ms problems are : Problem set: 0 solved, 3 unsolved
Search for dead transitions found 0 dead transitions in 138ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 194 ms. Remains : 3/3 places, 4/4 transitions.
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {0=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {0=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 17 ms. (steps per millisecond=588 ) properties (out of 1) seen :[2]
Current structural bounds on expressions (after cover walk) : Max Seen:[2] Max Struct:[+inf]
[2025-06-07 23:22:11] [INFO ] Flatten gal took : 2 ms
[2025-06-07 23:22:11] [INFO ] Flatten gal took : 0 ms
[2025-06-07 23:22:11] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality5031322131647596688.gal : 1 ms
[2025-06-07 23:22:11] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality9877840084677508867.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/ReachabilityCardinality5031322131647596688.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality9877840084677508867.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/ReachabilityCardinality9877840084677508867.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,6,0.003826,4136,2,8,5,44,7,0,24,26,0
Total reachable state count : 6

Verifying 1 reachability properties.
Invariant property MIN0 is true.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
MIN0,0,0.004191,4136,1,0,5,44,7,0,25,26,0
RANDOM walk for 40002 steps (8 resets) in 101 ms. (392 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40001 steps (8 resets) in 37 ms. (1052 steps per ms) remains 1/1 properties
Probably explored full state space saw : 6 states, properties seen :0
Probabilistic random walk after 14 steps, saw 6 distinct states, run finished after 4 ms. (steps per millisecond=3 ) properties seen :0
Explored full state space saw : 6 states, properties seen :0
Exhaustive walk after 14 steps, saw 6 distinct states, run finished after 1 ms. (steps per millisecond=14 ) properties seen :0
FORMULA Murphy-PT-D3N050-UpperBounds-08 2 TECHNIQUES REACHABILITY_MIN
Current structural bounds on expressions (After reachability solving 1 queries.) : Max Seen:[] Max Struct:[]
Ending property specific reduction for Murphy-PT-D3N050-UpperBounds-08 in 1526 ms.
Starting property specific reduction for Murphy-PT-D3N050-UpperBounds-10
Current structural bounds on expressions (Initially) : Max Seen:[3] Max Struct:[+inf]
Current structural bounds on expressions (Adding known information on max bounds.) : Max Seen:[3] Max Struct:[+inf]
Current structural bounds on expressions (Before main loop) : Max Seen:[3] Max Struct:[+inf]
// Phase 1: matrix 28 rows 20 cols
[2025-06-07 23:22:11] [INFO ] Computed 1 invariants in 1 ms
Current structural bounds on expressions (after invariants) : Max Seen:[3] Max Struct:[+inf]
RANDOM walk for 10044 steps (2 resets) in 9 ms. (1004 steps per ms)
BEST_FIRST walk for 10001 steps (2 resets) in 9 ms. (1000 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[3] Max Struct:[+inf]
[2025-06-07 23:22:11] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-07 23:22:11] [INFO ] [Real]Absence check using 1 positive place invariants in 2 ms returned sat
[2025-06-07 23:22:11] [INFO ] [Real]Absence check using state equation in 31 ms returned sat
[2025-06-07 23:22:11] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-07 23:22:11] [INFO ] [Nat]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-07 23:22:11] [INFO ] [Nat]Absence check using state equation in 29 ms returned sat
[2025-06-07 23:22:11] [INFO ] State equation strengthened by 8 read => feed constraints.
[2025-06-07 23:22:11] [INFO ] [Nat]Added 8 Read/Feed constraints in 4 ms returned sat
[2025-06-07 23:22:11] [INFO ] Computed and/alt/rep : 16/40/16 causal constraints (skipped 0 transitions) in 4 ms.
[2025-06-07 23:22:11] [INFO ] Added : 3 causal constraints over 1 iterations in 15 ms. Result :sat
Minimization took 11 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[3] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[3] Max Struct:[+inf]
Support contains 1 out of 20 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 20/20 places, 28/28 transitions.
Graph (complete) has 56 edges and 20 vertex of which 3 are kept as prefixes of interest. Removing 17 places using SCC suffix rule.0 ms
Discarding 17 places :
Also discarding 23 output transitions
Drop transitions (Output transitions of discarded places.) removed 23 transitions
Drop transitions (Empty/Sink Transition effects.) removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 3 transition count 4
Applied a total of 2 rules in 6 ms. Remains 3 /20 variables (removed 17) and now considering 4/28 (removed 24) transitions.
Running 3 sub problems to find dead transitions.
// Phase 1: matrix 4 rows 3 cols
[2025-06-07 23:22:11] [INFO ] Computed 0 invariants in 0 ms
[2025-06-07 23:22:11] [INFO ] State equation strengthened by 1 read => feed constraints.
Starting Z3 with timeout 20.0 s and query timeout 2000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (OVERLAPS) 4/6 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/6 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (OVERLAPS) 1/7 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/7 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 6 (OVERLAPS) 0/7 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Real declared 7/7 variables, and 4 constraints, problems are : Problem set: 0 solved, 3 unsolved in 71 ms.
Refiners :[State Equation: 3/3 constraints, ReadFeed: 1/1 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 3 unsolved
Starting Z3 with timeout 20.0 s and query timeout 2000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (OVERLAPS) 4/6 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/6 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (OVERLAPS) 1/7 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/7 variables, 3/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/7 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 7 (OVERLAPS) 0/7 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Int declared 7/7 variables, and 7 constraints, problems are : Problem set: 0 solved, 3 unsolved in 72 ms.
Refiners :[State Equation: 3/3 constraints, ReadFeed: 1/1 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 159ms problems are : Problem set: 0 solved, 3 unsolved
Search for dead transitions found 0 dead transitions in 159ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 170 ms. Remains : 3/20 places, 4/28 transitions.
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {0=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {0=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 10 ms. (steps per millisecond=1000 ) properties (out of 1) seen :[3]
Current structural bounds on expressions (after cover walk) : Max Seen:[3] Max Struct:[+inf]
[2025-06-07 23:22:11] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[3] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 421 ms. (2369 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 240 ms. (4149 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[3] Max Struct:[+inf]
[2025-06-07 23:22:12] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:22:12] [INFO ] [Real]Absence check using state equation in 3 ms returned sat
[2025-06-07 23:22:12] [INFO ] State equation strengthened by 1 read => feed constraints.
[2025-06-07 23:22:12] [INFO ] [Real]Added 1 Read/Feed constraints in 1 ms returned sat
[2025-06-07 23:22:12] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:22:12] [INFO ] [Nat]Absence check using state equation in 2 ms returned sat
[2025-06-07 23:22:12] [INFO ] [Nat]Added 1 Read/Feed constraints in 1 ms returned sat
[2025-06-07 23:22:12] [INFO ] Computed and/alt/rep : 3/6/3 causal constraints (skipped 0 transitions) in 1 ms.
[2025-06-07 23:22:12] [INFO ] Added : 3 causal constraints over 1 iterations in 4 ms. Result :sat
Minimization took 4 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[3] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[3] Max Struct:[+inf]
Support contains 1 out of 3 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 3/3 places, 4/4 transitions.
Applied a total of 0 rules in 1 ms. Remains 3 /3 variables (removed 0) and now considering 4/4 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 1 ms. Remains : 3/3 places, 4/4 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 3/3 places, 4/4 transitions.
Applied a total of 0 rules in 0 ms. Remains 3 /3 variables (removed 0) and now considering 4/4 (removed 0) transitions.
[2025-06-07 23:22:12] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-07 23:22:12] [INFO ] Implicit Places using invariants in 14 ms returned []
[2025-06-07 23:22:12] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-07 23:22:12] [INFO ] State equation strengthened by 1 read => feed constraints.
[2025-06-07 23:22:12] [INFO ] Implicit Places using invariants and state equation in 18 ms returned []
Implicit Place search using SMT with State Equation took 34 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-07 23:22:12] [INFO ] Redundant transitions in 0 ms returned []
Running 3 sub problems to find dead transitions.
[2025-06-07 23:22:12] [INFO ] Invariant cache hit.
[2025-06-07 23:22:12] [INFO ] State equation strengthened by 1 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (OVERLAPS) 4/6 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/6 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (OVERLAPS) 1/7 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/7 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 6 (OVERLAPS) 0/7 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Real declared 7/7 variables, and 4 constraints, problems are : Problem set: 0 solved, 3 unsolved in 57 ms.
Refiners :[State Equation: 3/3 constraints, ReadFeed: 1/1 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 3 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (OVERLAPS) 4/6 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/6 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (OVERLAPS) 1/7 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/7 variables, 3/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/7 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 7 (OVERLAPS) 0/7 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Int declared 7/7 variables, and 7 constraints, problems are : Problem set: 0 solved, 3 unsolved in 72 ms.
Refiners :[State Equation: 3/3 constraints, ReadFeed: 1/1 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 130ms problems are : Problem set: 0 solved, 3 unsolved
Search for dead transitions found 0 dead transitions in 130ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 170 ms. Remains : 3/3 places, 4/4 transitions.
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {0=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {0=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 7 ms. (steps per millisecond=1428 ) properties (out of 1) seen :[3]
Current structural bounds on expressions (after cover walk) : Max Seen:[3] Max Struct:[+inf]
[2025-06-07 23:22:12] [INFO ] Flatten gal took : 1 ms
[2025-06-07 23:22:12] [INFO ] Flatten gal took : 1 ms
[2025-06-07 23:22:12] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality6395882186919843305.gal : 4 ms
[2025-06-07 23:22:12] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality5714945452768587410.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/ReachabilityCardinality6395882186919843305.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality5714945452768587410.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/ReachabilityCardinality5714945452768587410.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,6,0.004237,4136,2,8,5,44,7,0,24,26,0
Total reachable state count : 6

Verifying 1 reachability properties.
Invariant property MIN0 is true.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
MIN0,0,0.004612,4136,1,0,5,44,7,0,25,26,0
RANDOM walk for 40000 steps (8 resets) in 52 ms. (754 steps per ms) remains 1/1 properties
ITS tools runner thread asked to quit. Dying gracefully.
BEST_FIRST walk for 40002 steps (8 resets) in 56 ms. (701 steps per ms) remains 1/1 properties
Probably explored full state space saw : 6 states, properties seen :0
Probabilistic random walk after 14 steps, saw 6 distinct states, run finished after 14 ms. (steps per millisecond=1 ) properties seen :0
Explored full state space saw : 6 states, properties seen :0
Exhaustive walk after 14 steps, saw 6 distinct states, run finished after 1 ms. (steps per millisecond=14 ) properties seen :0
FORMULA Murphy-PT-D3N050-UpperBounds-10 3 TECHNIQUES REACHABILITY_MIN
Current structural bounds on expressions (After reachability solving 1 queries.) : Max Seen:[] Max Struct:[]
Ending property specific reduction for Murphy-PT-D3N050-UpperBounds-10 in 1416 ms.
Starting property specific reduction for Murphy-PT-D3N050-UpperBounds-11
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 28 rows 20 cols
[2025-06-07 23:22:12] [INFO ] Computed 1 invariants in 2 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[+inf]
RANDOM walk for 10000 steps (2 resets) in 10 ms. (909 steps per ms)
BEST_FIRST walk for 10001 steps (2 resets) in 11 ms. (833 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[2] Max Struct:[+inf]
[2025-06-07 23:22:12] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-07 23:22:12] [INFO ] [Real]Absence check using 1 positive place invariants in 2 ms returned sat
[2025-06-07 23:22:12] [INFO ] [Real]Absence check using state equation in 15 ms returned sat
[2025-06-07 23:22:12] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-07 23:22:12] [INFO ] [Nat]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-07 23:22:12] [INFO ] [Nat]Absence check using state equation in 14 ms returned sat
[2025-06-07 23:22:12] [INFO ] State equation strengthened by 8 read => feed constraints.
[2025-06-07 23:22:12] [INFO ] [Nat]Added 8 Read/Feed constraints in 3 ms returned sat
[2025-06-07 23:22:12] [INFO ] Computed and/alt/rep : 16/40/16 causal constraints (skipped 0 transitions) in 3 ms.
[2025-06-07 23:22:12] [INFO ] Added : 2 causal constraints over 1 iterations in 13 ms. Result :sat
Minimization took 9 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[2] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[2] Max Struct:[+inf]
Support contains 1 out of 20 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 20/20 places, 28/28 transitions.
Graph (complete) has 56 edges and 20 vertex of which 3 are kept as prefixes of interest. Removing 17 places using SCC suffix rule.0 ms
Discarding 17 places :
Also discarding 23 output transitions
Drop transitions (Output transitions of discarded places.) removed 23 transitions
Drop transitions (Empty/Sink Transition effects.) removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 3 transition count 4
Applied a total of 2 rules in 2 ms. Remains 3 /20 variables (removed 17) and now considering 4/28 (removed 24) transitions.
Running 3 sub problems to find dead transitions.
// Phase 1: matrix 4 rows 3 cols
[2025-06-07 23:22:12] [INFO ] Computed 0 invariants in 1 ms
[2025-06-07 23:22:12] [INFO ] State equation strengthened by 1 read => feed constraints.
Starting Z3 with timeout 20.0 s and query timeout 2000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (OVERLAPS) 4/6 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/6 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (OVERLAPS) 1/7 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/7 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 6 (OVERLAPS) 0/7 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Real declared 7/7 variables, and 4 constraints, problems are : Problem set: 0 solved, 3 unsolved in 57 ms.
Refiners :[State Equation: 3/3 constraints, ReadFeed: 1/1 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 3 unsolved
Starting Z3 with timeout 20.0 s and query timeout 2000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (OVERLAPS) 4/6 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/6 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (OVERLAPS) 1/7 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/7 variables, 3/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/7 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 7 (OVERLAPS) 0/7 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Int declared 7/7 variables, and 7 constraints, problems are : Problem set: 0 solved, 3 unsolved in 73 ms.
Refiners :[State Equation: 3/3 constraints, ReadFeed: 1/1 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 135ms problems are : Problem set: 0 solved, 3 unsolved
Search for dead transitions found 0 dead transitions in 135ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 138 ms. Remains : 3/20 places, 4/28 transitions.
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {0=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {0=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 7 ms. (steps per millisecond=1428 ) properties (out of 1) seen :[2]
Current structural bounds on expressions (after cover walk) : Max Seen:[2] Max Struct:[+inf]
[2025-06-07 23:22:12] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[2] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 476 ms. (2096 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 237 ms. (4201 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[2] Max Struct:[+inf]
[2025-06-07 23:22:13] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:22:13] [INFO ] [Real]Absence check using state equation in 4 ms returned sat
[2025-06-07 23:22:13] [INFO ] State equation strengthened by 1 read => feed constraints.
[2025-06-07 23:22:13] [INFO ] [Real]Added 1 Read/Feed constraints in 1 ms returned sat
[2025-06-07 23:22:13] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:22:13] [INFO ] [Nat]Absence check using state equation in 2 ms returned sat
[2025-06-07 23:22:13] [INFO ] [Nat]Added 1 Read/Feed constraints in 0 ms returned sat
[2025-06-07 23:22:13] [INFO ] Computed and/alt/rep : 3/6/3 causal constraints (skipped 0 transitions) in 1 ms.
[2025-06-07 23:22:13] [INFO ] Added : 2 causal constraints over 1 iterations in 4 ms. Result :sat
Minimization took 5 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[2] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[2] Max Struct:[+inf]
Support contains 1 out of 3 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 3/3 places, 4/4 transitions.
Applied a total of 0 rules in 1 ms. Remains 3 /3 variables (removed 0) and now considering 4/4 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 1 ms. Remains : 3/3 places, 4/4 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 3/3 places, 4/4 transitions.
Applied a total of 0 rules in 0 ms. Remains 3 /3 variables (removed 0) and now considering 4/4 (removed 0) transitions.
[2025-06-07 23:22:13] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-07 23:22:13] [INFO ] Implicit Places using invariants in 21 ms returned []
[2025-06-07 23:22:13] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-07 23:22:13] [INFO ] State equation strengthened by 1 read => feed constraints.
[2025-06-07 23:22:13] [INFO ] Implicit Places using invariants and state equation in 26 ms returned []
Implicit Place search using SMT with State Equation took 48 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-07 23:22:13] [INFO ] Redundant transitions in 1 ms returned []
Running 3 sub problems to find dead transitions.
[2025-06-07 23:22:13] [INFO ] Invariant cache hit.
[2025-06-07 23:22:13] [INFO ] State equation strengthened by 1 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (OVERLAPS) 4/6 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/6 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (OVERLAPS) 1/7 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/7 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 6 (OVERLAPS) 0/7 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Real declared 7/7 variables, and 4 constraints, problems are : Problem set: 0 solved, 3 unsolved in 54 ms.
Refiners :[State Equation: 3/3 constraints, ReadFeed: 1/1 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 3 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (OVERLAPS) 4/6 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/6 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (OVERLAPS) 1/7 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/7 variables, 3/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/7 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 7 (OVERLAPS) 0/7 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Int declared 7/7 variables, and 7 constraints, problems are : Problem set: 0 solved, 3 unsolved in 75 ms.
Refiners :[State Equation: 3/3 constraints, ReadFeed: 1/1 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 132ms problems are : Problem set: 0 solved, 3 unsolved
Search for dead transitions found 0 dead transitions in 132ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 187 ms. Remains : 3/3 places, 4/4 transitions.
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {0=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {0=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 6 ms. (steps per millisecond=1666 ) properties (out of 1) seen :[2]
Current structural bounds on expressions (after cover walk) : Max Seen:[2] Max Struct:[+inf]
[2025-06-07 23:22:13] [INFO ] Flatten gal took : 1 ms
[2025-06-07 23:22:13] [INFO ] Flatten gal took : 0 ms
[2025-06-07 23:22:13] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality7997233368915177289.gal : 4 ms
[2025-06-07 23:22:13] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality8959393239373764313.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/ReachabilityCardinality7997233368915177289.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality8959393239373764313.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/ReachabilityCardinality8959393239373764313.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,6,0.003808,4136,2,8,5,44,7,0,24,26,0
Total reachable state count : 6

Verifying 1 reachability properties.
Invariant property MIN0 is true.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
MIN0,0,0.004151,4136,1,0,5,44,7,0,25,26,0
RANDOM walk for 40002 steps (8 resets) in 48 ms. (816 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40002 steps (8 resets) in 39 ms. (1000 steps per ms) remains 1/1 properties
Probably explored full state space saw : 6 states, properties seen :0
Probabilistic random walk after 14 steps, saw 6 distinct states, run finished after 5 ms. (steps per millisecond=2 ) properties seen :0
Explored full state space saw : 6 states, properties seen :0
Exhaustive walk after 14 steps, saw 6 distinct states, run finished after 1 ms. (steps per millisecond=14 ) properties seen :0
FORMULA Murphy-PT-D3N050-UpperBounds-11 2 TECHNIQUES REACHABILITY_MIN
Current structural bounds on expressions (After reachability solving 1 queries.) : Max Seen:[] Max Struct:[]
Ending property specific reduction for Murphy-PT-D3N050-UpperBounds-11 in 1388 ms.
Starting property specific reduction for Murphy-PT-D3N050-UpperBounds-13
Current structural bounds on expressions (Initially) : Max Seen:[3] Max Struct:[+inf]
Current structural bounds on expressions (Adding known information on max bounds.) : Max Seen:[3] Max Struct:[+inf]
Current structural bounds on expressions (Before main loop) : Max Seen:[3] Max Struct:[+inf]
// Phase 1: matrix 28 rows 20 cols
[2025-06-07 23:22:14] [INFO ] Computed 1 invariants in 1 ms
Current structural bounds on expressions (after invariants) : Max Seen:[3] Max Struct:[+inf]
RANDOM walk for 10036 steps (2 resets) in 15 ms. (627 steps per ms)
BEST_FIRST walk for 10001 steps (2 resets) in 9 ms. (1000 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[3] Max Struct:[+inf]
[2025-06-07 23:22:14] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-07 23:22:14] [INFO ] [Real]Absence check using 1 positive place invariants in 2 ms returned sat
[2025-06-07 23:22:14] [INFO ] [Real]Absence check using state equation in 13 ms returned sat
[2025-06-07 23:22:14] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-07 23:22:14] [INFO ] [Nat]Absence check using 1 positive place invariants in 2 ms returned sat
[2025-06-07 23:22:14] [INFO ] [Nat]Absence check using state equation in 16 ms returned sat
[2025-06-07 23:22:14] [INFO ] State equation strengthened by 8 read => feed constraints.
[2025-06-07 23:22:14] [INFO ] [Nat]Added 8 Read/Feed constraints in 4 ms returned sat
[2025-06-07 23:22:14] [INFO ] Computed and/alt/rep : 16/40/16 causal constraints (skipped 0 transitions) in 5 ms.
[2025-06-07 23:22:14] [INFO ] Added : 3 causal constraints over 1 iterations in 17 ms. Result :sat
Minimization took 13 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[3] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[3] Max Struct:[+inf]
Support contains 1 out of 20 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 20/20 places, 28/28 transitions.
Graph (complete) has 56 edges and 20 vertex of which 3 are kept as prefixes of interest. Removing 17 places using SCC suffix rule.0 ms
Discarding 17 places :
Also discarding 23 output transitions
Drop transitions (Output transitions of discarded places.) removed 23 transitions
Drop transitions (Empty/Sink Transition effects.) removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 3 transition count 4
Applied a total of 2 rules in 2 ms. Remains 3 /20 variables (removed 17) and now considering 4/28 (removed 24) transitions.
Running 3 sub problems to find dead transitions.
// Phase 1: matrix 4 rows 3 cols
[2025-06-07 23:22:14] [INFO ] Computed 0 invariants in 1 ms
[2025-06-07 23:22:14] [INFO ] State equation strengthened by 1 read => feed constraints.
Starting Z3 with timeout 20.0 s and query timeout 2000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (OVERLAPS) 4/6 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/6 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (OVERLAPS) 1/7 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/7 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 6 (OVERLAPS) 0/7 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Real declared 7/7 variables, and 4 constraints, problems are : Problem set: 0 solved, 3 unsolved in 49 ms.
Refiners :[State Equation: 3/3 constraints, ReadFeed: 1/1 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 3 unsolved
Starting Z3 with timeout 20.0 s and query timeout 2000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (OVERLAPS) 4/6 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/6 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (OVERLAPS) 1/7 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/7 variables, 3/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/7 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 7 (OVERLAPS) 0/7 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Int declared 7/7 variables, and 7 constraints, problems are : Problem set: 0 solved, 3 unsolved in 66 ms.
Refiners :[State Equation: 3/3 constraints, ReadFeed: 1/1 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 120ms problems are : Problem set: 0 solved, 3 unsolved
Search for dead transitions found 0 dead transitions in 121ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 123 ms. Remains : 3/20 places, 4/28 transitions.
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {0=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {0=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 6 ms. (steps per millisecond=1666 ) properties (out of 1) seen :[3]
Current structural bounds on expressions (after cover walk) : Max Seen:[3] Max Struct:[+inf]
[2025-06-07 23:22:14] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[3] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 506 ms. (1972 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 267 ms. (3731 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[3] Max Struct:[+inf]
[2025-06-07 23:22:15] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:22:15] [INFO ] [Real]Absence check using state equation in 3 ms returned sat
[2025-06-07 23:22:15] [INFO ] State equation strengthened by 1 read => feed constraints.
[2025-06-07 23:22:15] [INFO ] [Real]Added 1 Read/Feed constraints in 1 ms returned sat
[2025-06-07 23:22:15] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:22:15] [INFO ] [Nat]Absence check using state equation in 3 ms returned sat
[2025-06-07 23:22:15] [INFO ] [Nat]Added 1 Read/Feed constraints in 2 ms returned sat
[2025-06-07 23:22:15] [INFO ] Computed and/alt/rep : 3/6/3 causal constraints (skipped 0 transitions) in 0 ms.
[2025-06-07 23:22:15] [INFO ] Added : 3 causal constraints over 1 iterations in 6 ms. Result :sat
Minimization took 3 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[3] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[3] Max Struct:[+inf]
Support contains 1 out of 3 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 3/3 places, 4/4 transitions.
Applied a total of 0 rules in 1 ms. Remains 3 /3 variables (removed 0) and now considering 4/4 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 1 ms. Remains : 3/3 places, 4/4 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 3/3 places, 4/4 transitions.
Applied a total of 0 rules in 0 ms. Remains 3 /3 variables (removed 0) and now considering 4/4 (removed 0) transitions.
[2025-06-07 23:22:15] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-07 23:22:15] [INFO ] Implicit Places using invariants in 14 ms returned []
[2025-06-07 23:22:15] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-07 23:22:15] [INFO ] State equation strengthened by 1 read => feed constraints.
[2025-06-07 23:22:15] [INFO ] Implicit Places using invariants and state equation in 19 ms returned []
Implicit Place search using SMT with State Equation took 35 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-07 23:22:15] [INFO ] Redundant transitions in 0 ms returned []
Running 3 sub problems to find dead transitions.
[2025-06-07 23:22:15] [INFO ] Invariant cache hit.
[2025-06-07 23:22:15] [INFO ] State equation strengthened by 1 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (OVERLAPS) 4/6 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/6 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (OVERLAPS) 1/7 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/7 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 6 (OVERLAPS) 0/7 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Real declared 7/7 variables, and 4 constraints, problems are : Problem set: 0 solved, 3 unsolved in 41 ms.
Refiners :[State Equation: 3/3 constraints, ReadFeed: 1/1 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 3 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (OVERLAPS) 4/6 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/6 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (OVERLAPS) 1/7 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/7 variables, 3/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/7 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 7 (OVERLAPS) 0/7 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Int declared 7/7 variables, and 7 constraints, problems are : Problem set: 0 solved, 3 unsolved in 51 ms.
Refiners :[State Equation: 3/3 constraints, ReadFeed: 1/1 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 95ms problems are : Problem set: 0 solved, 3 unsolved
Search for dead transitions found 0 dead transitions in 95ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 136 ms. Remains : 3/3 places, 4/4 transitions.
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {0=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {0=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 4 ms. (steps per millisecond=2500 ) properties (out of 1) seen :[3]
Current structural bounds on expressions (after cover walk) : Max Seen:[3] Max Struct:[+inf]
[2025-06-07 23:22:15] [INFO ] Flatten gal took : 1 ms
[2025-06-07 23:22:15] [INFO ] Flatten gal took : 1 ms
[2025-06-07 23:22:15] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality4642778272124630750.gal : 1 ms
[2025-06-07 23:22:15] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality6207631861231214535.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/ReachabilityCardinality4642778272124630750.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality6207631861231214535.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/ReachabilityCardinality6207631861231214535.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,6,0.003337,4136,2,8,5,44,7,0,24,26,0
Total reachable state count : 6

Verifying 1 reachability properties.
RANDOM walk for 40003 steps (8 resets) in 38 ms. (1025 steps per ms) remains 1/1 properties
Invariant property MIN0 is true.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
MIN0,0,0.003605,4136,1,0,5,44,7,0,25,26,0
BEST_FIRST walk for 40002 steps (8 resets) in 19 ms. (2000 steps per ms) remains 1/1 properties
Probably explored full state space saw : 6 states, properties seen :0
Probabilistic random walk after 14 steps, saw 6 distinct states, run finished after 9 ms. (steps per millisecond=1 ) properties seen :0
Explored full state space saw : 6 states, properties seen :0
Exhaustive walk after 14 steps, saw 6 distinct states, run finished after 1 ms. (steps per millisecond=14 ) properties seen :0
FORMULA Murphy-PT-D3N050-UpperBounds-13 3 TECHNIQUES REACHABILITY_MIN
Current structural bounds on expressions (After reachability solving 1 queries.) : Max Seen:[] Max Struct:[]
Ending property specific reduction for Murphy-PT-D3N050-UpperBounds-13 in 1347 ms.
Starting property specific reduction for Murphy-PT-D3N050-UpperBounds-14
Current structural bounds on expressions (Initially) : Max Seen:[50] Max Struct:[+inf]
Current structural bounds on expressions (Adding known information on max bounds.) : Max Seen:[50] Max Struct:[204]
Current structural bounds on expressions (Before main loop) : Max Seen:[50] Max Struct:[204]
// Phase 1: matrix 28 rows 20 cols
[2025-06-07 23:22:15] [INFO ] Computed 1 invariants in 0 ms
Current structural bounds on expressions (after invariants) : Max Seen:[50] Max Struct:[204]
RANDOM walk for 10001 steps (2 resets) in 5 ms. (1666 steps per ms)
BEST_FIRST walk for 10001 steps (2 resets) in 5 ms. (1666 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[95] Max Struct:[204]
[2025-06-07 23:22:15] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-07 23:22:15] [INFO ] [Real]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-07 23:22:15] [INFO ] [Real]Absence check using state equation in 13 ms returned sat
[2025-06-07 23:22:15] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-07 23:22:15] [INFO ] [Nat]Absence check using 1 positive place invariants in 2 ms returned sat
[2025-06-07 23:22:15] [INFO ] [Nat]Absence check using state equation in 17 ms returned sat
[2025-06-07 23:22:15] [INFO ] State equation strengthened by 8 read => feed constraints.
[2025-06-07 23:22:15] [INFO ] [Nat]Added 8 Read/Feed constraints in 3 ms returned sat
[2025-06-07 23:22:15] [INFO ] Computed and/alt/rep : 16/40/16 causal constraints (skipped 0 transitions) in 14 ms.
[2025-06-07 23:22:15] [INFO ] Added : 0 causal constraints over 0 iterations in 20 ms. Result :sat
Minimization took 63 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[95] Max Struct:[204]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[127] Max Struct:[204]
Support contains 1 out of 20 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 20/20 places, 28/28 transitions.
Applied a total of 0 rules in 1 ms. Remains 20 /20 variables (removed 0) and now considering 28/28 (removed 0) transitions.
Running 16 sub problems to find dead transitions.
[2025-06-07 23:22:15] [INFO ] Invariant cache hit.
[2025-06-07 23:22:15] [INFO ] State equation strengthened by 8 read => feed constraints.
Starting Z3 with timeout 20.0 s and query timeout 2000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/12 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 1 (OVERLAPS) 4/16 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/16 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 3 (OVERLAPS) 28/44 variables, 16/17 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/44 variables, 8/25 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/44 variables, 0/25 constraints. Problems are: Problem set: 0 solved, 16 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (OVERLAPS) 4/48 variables, 4/29 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/48 variables, 0/29 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 8 (OVERLAPS) 0/48 variables, 0/29 constraints. Problems are: Problem set: 0 solved, 16 unsolved
No progress, stopping.
After SMT solving in domain Real declared 48/48 variables, and 29 constraints, problems are : Problem set: 0 solved, 16 unsolved in 411 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 20/20 constraints, ReadFeed: 8/8 constraints, PredecessorRefiner: 16/16 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 16 unsolved
Starting Z3 with timeout 20.0 s and query timeout 2000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/12 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 1 (OVERLAPS) 4/16 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/16 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 3 (OVERLAPS) 28/44 variables, 16/17 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/44 variables, 8/25 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/44 variables, 0/25 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 6 (OVERLAPS) 4/48 variables, 4/29 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/48 variables, 16/45 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/48 variables, 0/45 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 9 (OVERLAPS) 0/48 variables, 0/45 constraints. Problems are: Problem set: 0 solved, 16 unsolved
No progress, stopping.
After SMT solving in domain Int declared 48/48 variables, and 45 constraints, problems are : Problem set: 0 solved, 16 unsolved in 484 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 20/20 constraints, ReadFeed: 8/8 constraints, PredecessorRefiner: 16/16 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 901ms problems are : Problem set: 0 solved, 16 unsolved
Search for dead transitions found 0 dead transitions in 901ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 903 ms. Remains : 20/20 places, 28/28 transitions.
[2025-06-07 23:22:16] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[127] Max Struct:[204]
RANDOM walk for 1000023 steps (2 resets) in 453 ms. (2202 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 568 ms. (1757 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[127] Max Struct:[204]
[2025-06-07 23:22:17] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:22:17] [INFO ] [Real]Absence check using 1 positive place invariants in 2 ms returned sat
[2025-06-07 23:22:17] [INFO ] [Real]Absence check using state equation in 17 ms returned sat
[2025-06-07 23:22:17] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:22:17] [INFO ] [Nat]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-07 23:22:17] [INFO ] [Nat]Absence check using state equation in 16 ms returned sat
[2025-06-07 23:22:17] [INFO ] State equation strengthened by 8 read => feed constraints.
[2025-06-07 23:22:17] [INFO ] [Nat]Added 8 Read/Feed constraints in 4 ms returned sat
[2025-06-07 23:22:17] [INFO ] Computed and/alt/rep : 16/40/16 causal constraints (skipped 0 transitions) in 4 ms.
[2025-06-07 23:22:17] [INFO ] Added : 1 causal constraints over 1 iterations in 15 ms. Result :sat
Minimization took 86 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[127] Max Struct:[204]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[147] Max Struct:[204]
Support contains 1 out of 20 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 20/20 places, 28/28 transitions.
Applied a total of 0 rules in 2 ms. Remains 20 /20 variables (removed 0) and now considering 28/28 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 2 ms. Remains : 20/20 places, 28/28 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 20/20 places, 28/28 transitions.
Applied a total of 0 rules in 1 ms. Remains 20 /20 variables (removed 0) and now considering 28/28 (removed 0) transitions.
[2025-06-07 23:22:17] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-07 23:22:17] [INFO ] Implicit Places using invariants in 36 ms returned []
[2025-06-07 23:22:17] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-07 23:22:17] [INFO ] State equation strengthened by 8 read => feed constraints.
[2025-06-07 23:22:17] [INFO ] Implicit Places using invariants and state equation in 66 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
[2025-06-07 23:22:17] [INFO ] Redundant transitions in 0 ms returned []
Running 16 sub problems to find dead transitions.
[2025-06-07 23:22:17] [INFO ] Invariant cache hit.
[2025-06-07 23:22:17] [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) 0/12 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 1 (OVERLAPS) 4/16 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/16 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 3 (OVERLAPS) 28/44 variables, 16/17 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/44 variables, 8/25 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/44 variables, 0/25 constraints. Problems are: Problem set: 0 solved, 16 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (OVERLAPS) 4/48 variables, 4/29 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/48 variables, 0/29 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 8 (OVERLAPS) 0/48 variables, 0/29 constraints. Problems are: Problem set: 0 solved, 16 unsolved
No progress, stopping.
After SMT solving in domain Real declared 48/48 variables, and 29 constraints, problems are : Problem set: 0 solved, 16 unsolved in 415 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 20/20 constraints, ReadFeed: 8/8 constraints, PredecessorRefiner: 16/16 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 16 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/12 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 1 (OVERLAPS) 4/16 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/16 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 3 (OVERLAPS) 28/44 variables, 16/17 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/44 variables, 8/25 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/44 variables, 0/25 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 6 (OVERLAPS) 4/48 variables, 4/29 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/48 variables, 16/45 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/48 variables, 0/45 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 9 (OVERLAPS) 0/48 variables, 0/45 constraints. Problems are: Problem set: 0 solved, 16 unsolved
No progress, stopping.
After SMT solving in domain Int declared 48/48 variables, and 45 constraints, problems are : Problem set: 0 solved, 16 unsolved in 532 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 20/20 constraints, ReadFeed: 8/8 constraints, PredecessorRefiner: 16/16 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 955ms problems are : Problem set: 0 solved, 16 unsolved
Search for dead transitions found 0 dead transitions in 956ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 1068 ms. Remains : 20/20 places, 28/28 transitions.
[2025-06-07 23:22:18] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[147] Max Struct:[204]
RANDOM walk for 1000048 steps (2 resets) in 655 ms. (1524 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 451 ms. (2212 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[147] Max Struct:[204]
[2025-06-07 23:22:19] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:22:20] [INFO ] [Real]Absence check using 1 positive place invariants in 2 ms returned sat
[2025-06-07 23:22:20] [INFO ] [Real]Absence check using state equation in 10 ms returned sat
[2025-06-07 23:22:20] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:22:20] [INFO ] [Nat]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-07 23:22:20] [INFO ] [Nat]Absence check using state equation in 11 ms returned sat
[2025-06-07 23:22:20] [INFO ] State equation strengthened by 8 read => feed constraints.
[2025-06-07 23:22:20] [INFO ] [Nat]Added 8 Read/Feed constraints in 3 ms returned sat
[2025-06-07 23:22:20] [INFO ] Computed and/alt/rep : 16/40/16 causal constraints (skipped 0 transitions) in 3 ms.
[2025-06-07 23:22:20] [INFO ] Added : 1 causal constraints over 1 iterations in 22 ms. Result :sat
Minimization took 44 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[147] Max Struct:[204]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[147] Max Struct:[204]
Support contains 1 out of 20 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 20/20 places, 28/28 transitions.
Applied a total of 0 rules in 2 ms. Remains 20 /20 variables (removed 0) and now considering 28/28 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 2 ms. Remains : 20/20 places, 28/28 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 20/20 places, 28/28 transitions.
Applied a total of 0 rules in 1 ms. Remains 20 /20 variables (removed 0) and now considering 28/28 (removed 0) transitions.
[2025-06-07 23:22:20] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-07 23:22:20] [INFO ] Implicit Places using invariants in 25 ms returned []
[2025-06-07 23:22:20] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-07 23:22:20] [INFO ] State equation strengthened by 8 read => feed constraints.
[2025-06-07 23:22:20] [INFO ] Implicit Places using invariants and state equation in 40 ms returned []
Implicit Place search using SMT with State Equation took 68 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-07 23:22:20] [INFO ] Redundant transitions in 0 ms returned []
Running 16 sub problems to find dead transitions.
[2025-06-07 23:22:20] [INFO ] Invariant cache hit.
[2025-06-07 23:22:20] [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) 0/12 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 1 (OVERLAPS) 4/16 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/16 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 3 (OVERLAPS) 28/44 variables, 16/17 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/44 variables, 8/25 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/44 variables, 0/25 constraints. Problems are: Problem set: 0 solved, 16 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (OVERLAPS) 4/48 variables, 4/29 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/48 variables, 0/29 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 8 (OVERLAPS) 0/48 variables, 0/29 constraints. Problems are: Problem set: 0 solved, 16 unsolved
No progress, stopping.
After SMT solving in domain Real declared 48/48 variables, and 29 constraints, problems are : Problem set: 0 solved, 16 unsolved in 296 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 20/20 constraints, ReadFeed: 8/8 constraints, PredecessorRefiner: 16/16 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 16 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/12 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 1 (OVERLAPS) 4/16 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/16 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 3 (OVERLAPS) 28/44 variables, 16/17 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/44 variables, 8/25 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/44 variables, 0/25 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 6 (OVERLAPS) 4/48 variables, 4/29 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/48 variables, 16/45 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/48 variables, 0/45 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 9 (OVERLAPS) 0/48 variables, 0/45 constraints. Problems are: Problem set: 0 solved, 16 unsolved
No progress, stopping.
After SMT solving in domain Int declared 48/48 variables, and 45 constraints, problems are : Problem set: 0 solved, 16 unsolved in 607 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 20/20 constraints, ReadFeed: 8/8 constraints, PredecessorRefiner: 16/16 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 908ms problems are : Problem set: 0 solved, 16 unsolved
Search for dead transitions found 0 dead transitions in 909ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 982 ms. Remains : 20/20 places, 28/28 transitions.
[2025-06-07 23:22:21] [INFO ] Flatten gal took : 4 ms
[2025-06-07 23:22:21] [INFO ] Flatten gal took : 3 ms
[2025-06-07 23:22:21] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality2077471863734084902.gal : 1 ms
[2025-06-07 23:22:21] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality10081868604996463685.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/ReachabilityCardinality2077471863734084902.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality10081868604996463685.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/ReachabilityCardinality10081868604996463685.prop.
SDD proceeding with computation,2 properties remain. new max is 4
SDD size :1 after 6
SDD proceeding with computation,2 properties remain. new max is 8
SDD size :6 after 36
SDD proceeding with computation,2 properties remain. new max is 16
SDD size :36 after 90
SDD proceeding with computation,2 properties remain. new max is 32
SDD size :90 after 192
RANDOM walk for 40106 steps (8 resets) in 131 ms. (303 steps per ms) remains 2/2 properties
SDD proceeding with computation,2 properties remain. new max is 64
SDD size :192 after 30630
BEST_FIRST walk for 40003 steps (8 resets) in 93 ms. (425 steps per ms) remains 2/2 properties
BEST_FIRST walk for 40003 steps (8 resets) in 54 ms. (727 steps per ms) remains 2/2 properties
SDD proceeding with computation,2 properties remain. new max is 128
SDD size :30630 after 243534
SDD proceeding with computation,2 properties remain. new max is 256
SDD size :243534 after 1.78854e+09
SDD proceeding with computation,2 properties remain. new max is 512
SDD size :1.78854e+09 after 5.66311e+10
SDD proceeding with computation,2 properties remain. new max is 1024
SDD size :5.66311e+10 after 1.14813e+11
Interrupted probabilistic random walk after 554976 steps, run timeout after 3001 ms. (steps per millisecond=184 ) properties seen :0 out of 2
Probabilistic random walk after 554976 steps, saw 377545 distinct states, run finished after 3001 ms. (steps per millisecond=184 ) properties seen :0
[2025-06-07 23:22:24] [INFO ] Invariant cache hit.
[2025-06-07 23:22:24] [INFO ] State equation strengthened by 8 read => feed constraints.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 1 (OVERLAPS) 7/8 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 2 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-07 23:22:24] [INFO ] Deduced a trap composed of 4 places in 43 ms of which 5 ms to minimize.
Problem MAX0 is UNSAT
At refinement iteration 2 (INCLUDED_ONLY) 0/8 variables, 1/2 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/8 variables, 0/2 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 4 (OVERLAPS) 12/20 variables, 8/10 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/20 variables, 0/10 constraints. Problems are: Problem set: 1 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (OVERLAPS) 8/28 variables, 4/14 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/28 variables, 4/18 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/28 variables, 0/18 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 20/48 variables, 12/30 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/48 variables, 0/30 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 0/48 variables, 0/30 constraints. Problems are: Problem set: 1 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 48/48 variables, and 30 constraints, problems are : Problem set: 1 solved, 1 unsolved in 118 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 20/20 constraints, ReadFeed: 8/8 constraints, PredecessorRefiner: 2/2 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 1 solved, 1 unsolved
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 7/8 variables, 1/1 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/8 variables, 1/2 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/8 variables, 0/2 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 4 (OVERLAPS) 12/20 variables, 8/10 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/20 variables, 0/10 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 8/28 variables, 4/14 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/28 variables, 4/18 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/28 variables, 0/18 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 20/48 variables, 12/30 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/48 variables, 1/31 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/48 variables, 0/31 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/48 variables, 0/31 constraints. Problems are: Problem set: 1 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 48/48 variables, and 31 constraints, problems are : Problem set: 1 solved, 1 unsolved in 106 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 20/20 constraints, ReadFeed: 8/8 constraints, PredecessorRefiner: 1/2 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 230ms problems are : Problem set: 1 solved, 1 unsolved
Parikh walk visited 0 properties in 36 ms.
Support contains 1 out of 20 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 20/20 places, 28/28 transitions.
Applied a total of 0 rules in 6 ms. Remains 20 /20 variables (removed 0) and now considering 28/28 (removed 0) transitions.
Running 16 sub problems to find dead transitions.
[2025-06-07 23:22:24] [INFO ] Invariant cache hit.
[2025-06-07 23:22:24] [INFO ] State equation strengthened by 8 read => feed constraints.
Starting Z3 with timeout 20.0 s and query timeout 2000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/12 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 1 (OVERLAPS) 4/16 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/16 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 3 (OVERLAPS) 28/44 variables, 16/17 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/44 variables, 8/25 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/44 variables, 0/25 constraints. Problems are: Problem set: 0 solved, 16 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (OVERLAPS) 4/48 variables, 4/29 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/48 variables, 0/29 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 8 (OVERLAPS) 0/48 variables, 0/29 constraints. Problems are: Problem set: 0 solved, 16 unsolved
No progress, stopping.
After SMT solving in domain Real declared 48/48 variables, and 29 constraints, problems are : Problem set: 0 solved, 16 unsolved in 368 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 20/20 constraints, ReadFeed: 8/8 constraints, PredecessorRefiner: 16/16 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 16 unsolved
Starting Z3 with timeout 20.0 s and query timeout 2000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/12 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 1 (OVERLAPS) 4/16 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/16 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 3 (OVERLAPS) 28/44 variables, 16/17 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/44 variables, 8/25 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/44 variables, 0/25 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 6 (OVERLAPS) 4/48 variables, 4/29 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/48 variables, 16/45 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/48 variables, 0/45 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 9 (OVERLAPS) 0/48 variables, 0/45 constraints. Problems are: Problem set: 0 solved, 16 unsolved
No progress, stopping.
After SMT solving in domain Int declared 48/48 variables, and 45 constraints, problems are : Problem set: 0 solved, 16 unsolved in 584 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 20/20 constraints, ReadFeed: 8/8 constraints, PredecessorRefiner: 16/16 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 977ms problems are : Problem set: 0 solved, 16 unsolved
Search for dead transitions found 0 dead transitions in 978ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 985 ms. Remains : 20/20 places, 28/28 transitions.
RANDOM walk for 40073 steps (8 resets) in 24 ms. (1602 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (8 resets) in 22 ms. (1739 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 2210303 steps, run timeout after 3001 ms. (steps per millisecond=736 ) properties seen :0 out of 1
Probabilistic random walk after 2210303 steps, saw 1503482 distinct states, run finished after 3001 ms. (steps per millisecond=736 ) properties seen :0
[2025-06-07 23:22:28] [INFO ] Invariant cache hit.
[2025-06-07 23:22:28] [INFO ] State equation strengthened by 8 read => feed constraints.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 7/8 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/8 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 12/20 variables, 8/9 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/20 variables, 0/9 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 8/28 variables, 4/13 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/28 variables, 4/17 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/28 variables, 0/17 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 20/48 variables, 12/29 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/48 variables, 0/29 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 0/48 variables, 0/29 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 48/48 variables, and 29 constraints, problems are : Problem set: 0 solved, 1 unsolved in 50 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 20/20 constraints, ReadFeed: 8/8 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 7/8 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-07 23:22:28] [INFO ] Deduced a trap composed of 4 places in 31 ms of which 3 ms to minimize.
At refinement iteration 2 (INCLUDED_ONLY) 0/8 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/8 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (OVERLAPS) 12/20 variables, 8/10 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/20 variables, 0/10 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 8/28 variables, 4/14 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/28 variables, 4/18 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/28 variables, 0/18 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 20/48 variables, 12/30 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/48 variables, 1/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/48 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/48 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 48/48 variables, and 31 constraints, problems are : Problem set: 0 solved, 1 unsolved in 99 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 20/20 constraints, ReadFeed: 8/8 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 158ms problems are : Problem set: 0 solved, 1 unsolved
Finished Parikh walk after 610 steps, including 3 resets, run visited all 1 properties in 2 ms. (steps per millisecond=305 )
Parikh walk visited 1 properties in 1 ms.
ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
Current structural bounds on expressions (After reachability solving 0 queries.) : Max Seen:[147] Max Struct:[204]
Ending property specific reduction for Murphy-PT-D3N050-UpperBounds-14 in 13323 ms.
Starting property specific reduction for Murphy-PT-D3N050-UpperBounds-15
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]
[2025-06-07 23:22:28] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[+inf]
RANDOM walk for 10019 steps (2 resets) in 6 ms. (1431 steps per ms)
BEST_FIRST walk for 10001 steps (2 resets) in 5 ms. (1666 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[2] Max Struct:[+inf]
[2025-06-07 23:22:28] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-07 23:22:28] [INFO ] [Real]Absence check using 1 positive place invariants in 2 ms returned sat
[2025-06-07 23:22:28] [INFO ] [Real]Absence check using state equation in 11 ms returned sat
[2025-06-07 23:22:28] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-07 23:22:28] [INFO ] [Nat]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-07 23:22:28] [INFO ] [Nat]Absence check using state equation in 10 ms returned sat
[2025-06-07 23:22:28] [INFO ] State equation strengthened by 8 read => feed constraints.
[2025-06-07 23:22:28] [INFO ] [Nat]Added 8 Read/Feed constraints in 2 ms returned sat
[2025-06-07 23:22:28] [INFO ] Computed and/alt/rep : 16/40/16 causal constraints (skipped 0 transitions) in 3 ms.
[2025-06-07 23:22:28] [INFO ] Added : 2 causal constraints over 1 iterations in 10 ms. Result :sat
Minimization took 8 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[2] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[2] Max Struct:[+inf]
Support contains 1 out of 20 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 20/20 places, 28/28 transitions.
Graph (complete) has 56 edges and 20 vertex of which 3 are kept as prefixes of interest. Removing 17 places using SCC suffix rule.0 ms
Discarding 17 places :
Also discarding 23 output transitions
Drop transitions (Output transitions of discarded places.) removed 23 transitions
Drop transitions (Empty/Sink Transition effects.) removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 3 transition count 4
Applied a total of 2 rules in 1 ms. Remains 3 /20 variables (removed 17) and now considering 4/28 (removed 24) transitions.
Running 3 sub problems to find dead transitions.
// Phase 1: matrix 4 rows 3 cols
[2025-06-07 23:22:28] [INFO ] Computed 0 invariants in 0 ms
[2025-06-07 23:22:28] [INFO ] State equation strengthened by 1 read => feed constraints.
Starting Z3 with timeout 20.0 s and query timeout 2000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (OVERLAPS) 4/6 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/6 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (OVERLAPS) 1/7 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/7 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 6 (OVERLAPS) 0/7 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Real declared 7/7 variables, and 4 constraints, problems are : Problem set: 0 solved, 3 unsolved in 42 ms.
Refiners :[State Equation: 3/3 constraints, ReadFeed: 1/1 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 3 unsolved
Starting Z3 with timeout 20.0 s and query timeout 2000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (OVERLAPS) 4/6 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/6 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (OVERLAPS) 1/7 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/7 variables, 3/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/7 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 7 (OVERLAPS) 0/7 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Int declared 7/7 variables, and 7 constraints, problems are : Problem set: 0 solved, 3 unsolved in 46 ms.
Refiners :[State Equation: 3/3 constraints, ReadFeed: 1/1 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 92ms problems are : Problem set: 0 solved, 3 unsolved
Search for dead transitions found 0 dead transitions in 92ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 93 ms. Remains : 3/20 places, 4/28 transitions.
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {0=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {0=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 4 ms. (steps per millisecond=2500 ) properties (out of 1) seen :[2]
Current structural bounds on expressions (after cover walk) : Max Seen:[2] Max Struct:[+inf]
[2025-06-07 23:22:28] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[2] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 461 ms. (2164 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 326 ms. (3058 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[2] Max Struct:[+inf]
[2025-06-07 23:22:29] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:22:29] [INFO ] [Real]Absence check using state equation in 4 ms returned sat
[2025-06-07 23:22:29] [INFO ] State equation strengthened by 1 read => feed constraints.
[2025-06-07 23:22:29] [INFO ] [Real]Added 1 Read/Feed constraints in 1 ms returned sat
[2025-06-07 23:22:29] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 23:22:29] [INFO ] [Nat]Absence check using state equation in 3 ms returned sat
[2025-06-07 23:22:29] [INFO ] [Nat]Added 1 Read/Feed constraints in 1 ms returned sat
[2025-06-07 23:22:29] [INFO ] Computed and/alt/rep : 3/6/3 causal constraints (skipped 0 transitions) in 1 ms.
[2025-06-07 23:22:29] [INFO ] Added : 2 causal constraints over 1 iterations in 4 ms. Result :sat
Minimization took 3 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[2] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[2] Max Struct:[+inf]
Support contains 1 out of 3 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 3/3 places, 4/4 transitions.
Applied a total of 0 rules in 1 ms. Remains 3 /3 variables (removed 0) and now considering 4/4 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 1 ms. Remains : 3/3 places, 4/4 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 3/3 places, 4/4 transitions.
Applied a total of 0 rules in 0 ms. Remains 3 /3 variables (removed 0) and now considering 4/4 (removed 0) transitions.
[2025-06-07 23:22:29] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-07 23:22:29] [INFO ] Implicit Places using invariants in 18 ms returned []
[2025-06-07 23:22:29] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-07 23:22:29] [INFO ] State equation strengthened by 1 read => feed constraints.
[2025-06-07 23:22:29] [INFO ] Implicit Places using invariants and state equation in 23 ms returned []
Implicit Place search using SMT with State Equation took 43 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-07 23:22:29] [INFO ] Redundant transitions in 0 ms returned []
Running 3 sub problems to find dead transitions.
[2025-06-07 23:22:29] [INFO ] Invariant cache hit.
[2025-06-07 23:22:29] [INFO ] State equation strengthened by 1 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (OVERLAPS) 4/6 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/6 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (OVERLAPS) 1/7 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/7 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 6 (OVERLAPS) 0/7 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Real declared 7/7 variables, and 4 constraints, problems are : Problem set: 0 solved, 3 unsolved in 52 ms.
Refiners :[State Equation: 3/3 constraints, ReadFeed: 1/1 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 3 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (OVERLAPS) 4/6 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/6 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (OVERLAPS) 1/7 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/7 variables, 3/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/7 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 7 (OVERLAPS) 0/7 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Int declared 7/7 variables, and 7 constraints, problems are : Problem set: 0 solved, 3 unsolved in 68 ms.
Refiners :[State Equation: 3/3 constraints, ReadFeed: 1/1 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 122ms problems are : Problem set: 0 solved, 3 unsolved
Search for dead transitions found 0 dead transitions in 122ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 171 ms. Remains : 3/3 places, 4/4 transitions.
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {0=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {0=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 4 ms. (steps per millisecond=2500 ) properties (out of 1) seen :[2]
Current structural bounds on expressions (after cover walk) : Max Seen:[2] Max Struct:[+inf]
[2025-06-07 23:22:29] [INFO ] Flatten gal took : 1 ms
[2025-06-07 23:22:29] [INFO ] Flatten gal took : 1 ms
[2025-06-07 23:22:29] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality14544972820708551548.gal : 1 ms
[2025-06-07 23:22:29] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality1789124588294170602.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/ReachabilityCardinality14544972820708551548.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality1789124588294170602.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/ReachabilityCardinality1789124588294170602.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,6,0.003555,4136,2,8,5,44,7,0,24,26,0
Total reachable state count : 6

Verifying 1 reachability properties.
Invariant property MIN0 is true.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
MIN0,0,0.003874,4136,1,0,5,44,7,0,25,26,0
RANDOM walk for 40002 steps (8 resets) in 88 ms. (449 steps per ms) remains 1/1 properties
ITS tools runner thread asked to quit. Dying gracefully.
BEST_FIRST walk for 40002 steps (8 resets) in 51 ms. (769 steps per ms) remains 1/1 properties
Probably explored full state space saw : 6 states, properties seen :0
Probabilistic random walk after 14 steps, saw 6 distinct states, run finished after 5 ms. (steps per millisecond=2 ) properties seen :0
Explored full state space saw : 6 states, properties seen :0
Exhaustive walk after 14 steps, saw 6 distinct states, run finished after 2 ms. (steps per millisecond=7 ) properties seen :0
FORMULA Murphy-PT-D3N050-UpperBounds-15 2 TECHNIQUES REACHABILITY_MIN
Current structural bounds on expressions (After reachability solving 1 queries.) : Max Seen:[] Max Struct:[]
Ending property specific reduction for Murphy-PT-D3N050-UpperBounds-15 in 1323 ms.
[2025-06-07 23:22:30] [INFO ] Flatten gal took : 3 ms
[2025-06-07 23:22:30] [INFO ] Applying decomposition
[2025-06-07 23:22:30] [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/graph15947770112195363030.txt' '-o' '/tmp/graph15947770112195363030.bin' '-w' '/tmp/graph15947770112195363030.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/louvain-linux64' '/tmp/graph15947770112195363030.bin' '-l' '-1' '-v' '-w' '/tmp/graph15947770112195363030.weights' '-q' '0' '-e' '0.001'
[2025-06-07 23:22:30] [INFO ] Decomposing Gal with order
[2025-06-07 23:22:30] [INFO ] Rewriting arrays to variables to allow decomposition.
[2025-06-07 23:22:30] [INFO ] Flatten gal took : 5 ms
[2025-06-07 23:22:30] [INFO ] Fuse similar labels procedure discarded/fused a total of 0 labels/synchronizations in 1 ms.
[2025-06-07 23:22:30] [INFO ] Time to serialize gal into /tmp/UpperBounds910598582297809832.gal : 2 ms
[2025-06-07 23:22:30] [INFO ] Time to serialize properties into /tmp/UpperBounds17091104670116204083.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/UpperBounds910598582297809832.gal' '-t' 'CGAL' '-reachable-file' '/tmp/UpperBounds17091104670116204083.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 ...283
Loading property file /tmp/UpperBounds17091104670116204083.prop.
Detected timeout of ITS tools.
[2025-06-07 23:43:49] [INFO ] Flatten gal took : 3 ms
[2025-06-07 23:43:49] [INFO ] Time to serialize gal into /tmp/UpperBounds5262276893767967758.gal : 1 ms
[2025-06-07 23:43:49] [INFO ] Time to serialize properties into /tmp/UpperBounds4024133441271120759.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/UpperBounds5262276893767967758.gal' '-t' 'CGAL' '-reachable-file' '/tmp/UpperBounds4024133441271120759.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...304
Loading property file /tmp/UpperBounds4024133441271120759.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,5.4071e+14,66.3993,716456,2,7445,5,2.50568e+06,6,0,139,2.74917e+06,0
Total reachable state count : 540710084330928

Verifying 3 reachability properties.
Min sum of variable value : 0
Maximum sum along a path : 199
Bounds property Murphy-PT-D3N050-UpperBounds-05 :0 <= p1_1 <= 199
FORMULA Murphy-PT-D3N050-UpperBounds-05 199 TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
Murphy-PT-D3N050-UpperBounds-05,0,66.7273,716456,1,0,7,2.50568e+06,9,1,396,2.74917e+06,4
Min sum of variable value : 0
Maximum sum along a path : 199
Bounds property Murphy-PT-D3N050-UpperBounds-06 :0 <= p1_4 <= 199
FORMULA Murphy-PT-D3N050-UpperBounds-06 199 TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
Murphy-PT-D3N050-UpperBounds-06,0,66.7295,716456,1,0,8,2.50568e+06,10,1,605,2.74917e+06,5
Min sum of variable value : 0
Maximum sum along a path : 199
Bounds property Murphy-PT-D3N050-UpperBounds-14 :0 <= p1_2 <= 199
FORMULA Murphy-PT-D3N050-UpperBounds-14 199 TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
Murphy-PT-D3N050-UpperBounds-14,0,66.9856,716456,1,0,9,2.50568e+06,11,1,834,2.74917e+06,6
Total runtime 1584176 ms.

BK_STOP 1749339896507

--------------------
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="Murphy-PT-D3N050"
export BK_EXAMINATION="UpperBounds"
export BK_TOOL="itstools"
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 2-5832"
echo " Executing tool itstools"
echo " Input is Murphy-PT-D3N050, 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 r128-smll-174876524900597"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/Murphy-PT-D3N050.tgz
mv Murphy-PT-D3N050 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 ;