Execution Chart

We display below the execution chart for this examination (boot time has been removed).

Trace from the execution

Formatting '/data/fkordon/mcc2026-input.r047-tall-177946846500088.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2026-input.qcow2 backing_fmt=qcow2 cluster_size=65536 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
.................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
=====================================================================
Generated by BenchKit 2-5973
Executing tool gold2025
Input is CANInsertWithFailure-PT-005, examination is UpperBounds
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r047-tall-177946846500088
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 696K
-rw-r--r-- 1 mcc users 9.0K Mar 6 10:35 CTLCardinality.txt
-rw-r--r-- 1 mcc users 84K Mar 6 10:35 CTLCardinality.xml
-rw-r--r-- 1 mcc users 6.9K Mar 6 10:35 CTLFireability.txt
-rw-r--r-- 1 mcc users 51K Mar 6 10:35 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.4K Mar 15 07:53 LTLCardinality.txt
-rw-r--r-- 1 mcc users 26K Mar 15 07:53 LTLCardinality.xml
-rw-r--r-- 1 mcc users 3.1K Mar 15 07:53 LTLFireability.txt
-rw-r--r-- 1 mcc users 20K Mar 15 07:53 LTLFireability.xml
-rw-r--r-- 1 mcc users 14K Mar 6 10:35 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 109K Mar 6 10:35 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 16K Mar 6 10:35 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 110K Mar 6 10:35 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.9K Mar 15 07:53 UpperBounds.txt
-rw-r--r-- 1 mcc users 4.0K Mar 15 07:53 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 equiv_col
-rw-r--r-- 1 mcc users 4 Mar 3 18:30 instance
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 iscolored
-rw-r--r-- 1 mcc users 202K Mar 3 18:30 model.pnml

--------------------
content from stdout:

=== Data for post analysis generated by BenchKit (invocation template)

The expected result is a vector of positive values
NUM_VECTOR

echo here is the order used to build the result vector(from xml file)
FORMULA_NAME CANInsertWithFailure-PT-005-UpperBounds-00
FORMULA_NAME CANInsertWithFailure-PT-005-UpperBounds-01
FORMULA_NAME CANInsertWithFailure-PT-005-UpperBounds-02
FORMULA_NAME CANInsertWithFailure-PT-005-UpperBounds-03
FORMULA_NAME CANInsertWithFailure-PT-005-UpperBounds-04
FORMULA_NAME CANInsertWithFailure-PT-005-UpperBounds-05
FORMULA_NAME CANInsertWithFailure-PT-005-UpperBounds-06
FORMULA_NAME CANInsertWithFailure-PT-005-UpperBounds-07
FORMULA_NAME CANInsertWithFailure-PT-005-UpperBounds-08
FORMULA_NAME CANInsertWithFailure-PT-005-UpperBounds-09
FORMULA_NAME CANInsertWithFailure-PT-005-UpperBounds-10
FORMULA_NAME CANInsertWithFailure-PT-005-UpperBounds-11
FORMULA_NAME CANInsertWithFailure-PT-005-UpperBounds-12
FORMULA_NAME CANInsertWithFailure-PT-005-UpperBounds-13
FORMULA_NAME CANInsertWithFailure-PT-005-UpperBounds-14
FORMULA_NAME CANInsertWithFailure-PT-005-UpperBounds-15

=== Now, execution of the tool begins

BK_START 1779485476898

Invoking MCC driver with
GOLD_TOOL=
BK_EXAMINATION=UpperBounds
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=CANInsertWithFailure-PT-005
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
UpperBounds PT
Running Version 202505121319
[2026-05-22 21:31:18] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, UpperBounds, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2026-05-22 21:31:18] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-22 21:31:18] [INFO ] Load time of PNML (sax parser for PT used): 82 ms
[2026-05-22 21:31:18] [INFO ] Transformed 114 places.
[2026-05-22 21:31:18] [INFO ] Transformed 180 transitions.
[2026-05-22 21:31:18] [INFO ] Parsed PT model containing 114 places and 180 transitions and 500 arcs in 168 ms.
Parsed 16 properties from file /home/mcc/execution/UpperBounds.xml in 7 ms.
Current structural bounds on expressions (Initially) : Max Seen:[0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (Before main loop) : Max Seen:[0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
// Phase 1: matrix 180 rows 114 cols
[2026-05-22 21:31:18] [INFO ] Computed 8 invariants in 13 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[1, 5, 5, 1, 5, 5, 5, 1, 5, 1, 1, 5, 5, 5, 1, 5]
RANDOM walk for 10000 steps (106 resets) in 36 ms. (270 steps per ms)
FORMULA CANInsertWithFailure-PT-005-UpperBounds-14 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA CANInsertWithFailure-PT-005-UpperBounds-10 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA CANInsertWithFailure-PT-005-UpperBounds-09 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA CANInsertWithFailure-PT-005-UpperBounds-07 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA CANInsertWithFailure-PT-005-UpperBounds-03 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA CANInsertWithFailure-PT-005-UpperBounds-00 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 100008 steps (259 resets) in 88 ms. (1123 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[1, 1, 1, 1, 1, 1, 1, 1, 1, 1] Max Struct:[5, 5, 5, 5, 5, 5, 5, 5, 5, 5]
[2026-05-22 21:31:18] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-22 21:31:18] [INFO ] [Real]Absence check using 6 positive place invariants in 8 ms returned sat
[2026-05-22 21:31:18] [INFO ] [Real]Absence check using 6 positive and 2 generalized place invariants in 3 ms returned sat
[2026-05-22 21:31:18] [INFO ] [Real]Absence check using state equation in 71 ms returned sat
[2026-05-22 21:31:18] [INFO ] State equation strengthened by 45 read => feed constraints.
[2026-05-22 21:31:18] [INFO ] [Real]Added 45 Read/Feed constraints in 15 ms returned sat
[2026-05-22 21:31:18] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-22 21:31:18] [INFO ] [Nat]Absence check using 6 positive place invariants in 3 ms returned sat
[2026-05-22 21:31:18] [INFO ] [Nat]Absence check using 6 positive and 2 generalized place invariants in 0 ms returned sat
[2026-05-22 21:31:18] [INFO ] [Nat]Absence check using state equation in 61 ms returned sat
[2026-05-22 21:31:19] [INFO ] [Nat]Added 45 Read/Feed constraints in 14 ms returned sat
[2026-05-22 21:31:19] [INFO ] Computed and/alt/rep : 165/270/165 causal constraints (skipped 10 transitions) in 20 ms.
[2026-05-22 21:31:19] [INFO ] Added : 38 causal constraints over 8 iterations in 243 ms. Result :sat
Minimization took 77 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-22 21:31:19] [INFO ] [Real]Absence check using 6 positive place invariants in 15 ms returned sat
[2026-05-22 21:31:19] [INFO ] [Real]Absence check using 6 positive and 2 generalized place invariants in 1 ms returned sat
[2026-05-22 21:31:19] [INFO ] [Real]Absence check using state equation in 57 ms returned sat
[2026-05-22 21:31:19] [INFO ] [Real]Added 45 Read/Feed constraints in 21 ms returned sat
[2026-05-22 21:31:19] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-22 21:31:19] [INFO ] [Nat]Absence check using 6 positive place invariants in 2 ms returned sat
[2026-05-22 21:31:19] [INFO ] [Nat]Absence check using 6 positive and 2 generalized place invariants in 1 ms returned sat
[2026-05-22 21:31:19] [INFO ] [Nat]Absence check using state equation in 34 ms returned sat
[2026-05-22 21:31:19] [INFO ] [Nat]Added 45 Read/Feed constraints in 10 ms returned sat
[2026-05-22 21:31:19] [INFO ] Computed and/alt/rep : 165/270/165 causal constraints (skipped 10 transitions) in 12 ms.
[2026-05-22 21:31:19] [INFO ] Added : 39 causal constraints over 8 iterations in 127 ms. Result :sat
Minimization took 67 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-22 21:31:19] [INFO ] [Real]Absence check using 6 positive place invariants in 2 ms returned sat
[2026-05-22 21:31:19] [INFO ] [Real]Absence check using 6 positive and 2 generalized place invariants in 2 ms returned sat
[2026-05-22 21:31:19] [INFO ] [Real]Absence check using state equation in 33 ms returned sat
[2026-05-22 21:31:19] [INFO ] [Real]Added 45 Read/Feed constraints in 4 ms returned sat
[2026-05-22 21:31:19] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-22 21:31:19] [INFO ] [Nat]Absence check using 6 positive place invariants in 3 ms returned sat
[2026-05-22 21:31:19] [INFO ] [Nat]Absence check using 6 positive and 2 generalized place invariants in 2 ms returned sat
[2026-05-22 21:31:19] [INFO ] [Nat]Absence check using state equation in 37 ms returned sat
[2026-05-22 21:31:19] [INFO ] [Nat]Added 45 Read/Feed constraints in 17 ms returned sat
[2026-05-22 21:31:20] [INFO ] Computed and/alt/rep : 165/270/165 causal constraints (skipped 10 transitions) in 35 ms.
[2026-05-22 21:31:20] [INFO ] Added : 49 causal constraints over 10 iterations in 167 ms. Result :sat
Minimization took 71 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-22 21:31:20] [INFO ] [Real]Absence check using 6 positive place invariants in 7 ms returned sat
[2026-05-22 21:31:20] [INFO ] [Real]Absence check using 6 positive and 2 generalized place invariants in 1 ms returned unsat
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-22 21:31:20] [INFO ] [Real]Absence check using 6 positive place invariants in 3 ms returned sat
[2026-05-22 21:31:20] [INFO ] [Real]Absence check using 6 positive and 2 generalized place invariants in 1 ms returned unsat
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-22 21:31:20] [INFO ] [Real]Absence check using 6 positive place invariants in 2 ms returned sat
[2026-05-22 21:31:20] [INFO ] [Real]Absence check using 6 positive and 2 generalized place invariants in 1 ms returned sat
[2026-05-22 21:31:20] [INFO ] [Real]Absence check using state equation in 39 ms returned sat
[2026-05-22 21:31:20] [INFO ] [Real]Added 45 Read/Feed constraints in 4 ms returned sat
[2026-05-22 21:31:20] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-22 21:31:20] [INFO ] [Nat]Absence check using 6 positive place invariants in 3 ms returned sat
[2026-05-22 21:31:20] [INFO ] [Nat]Absence check using 6 positive and 2 generalized place invariants in 1 ms returned sat
[2026-05-22 21:31:20] [INFO ] [Nat]Absence check using state equation in 35 ms returned sat
[2026-05-22 21:31:20] [INFO ] [Nat]Added 45 Read/Feed constraints in 8 ms returned sat
[2026-05-22 21:31:20] [INFO ] Computed and/alt/rep : 165/270/165 causal constraints (skipped 10 transitions) in 10 ms.
[2026-05-22 21:31:20] [INFO ] Added : 38 causal constraints over 8 iterations in 135 ms. Result :sat
Minimization took 88 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-22 21:31:20] [INFO ] [Real]Absence check using 6 positive place invariants in 3 ms returned sat
[2026-05-22 21:31:20] [INFO ] [Real]Absence check using 6 positive and 2 generalized place invariants in 1 ms returned sat
[2026-05-22 21:31:20] [INFO ] [Real]Absence check using state equation in 40 ms returned sat
[2026-05-22 21:31:20] [INFO ] [Real]Added 45 Read/Feed constraints in 4 ms returned sat
[2026-05-22 21:31:20] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-22 21:31:20] [INFO ] [Nat]Absence check using 6 positive place invariants in 3 ms returned sat
[2026-05-22 21:31:20] [INFO ] [Nat]Absence check using 6 positive and 2 generalized place invariants in 1 ms returned sat
[2026-05-22 21:31:20] [INFO ] [Nat]Absence check using state equation in 35 ms returned sat
[2026-05-22 21:31:20] [INFO ] [Nat]Added 45 Read/Feed constraints in 21 ms returned sat
[2026-05-22 21:31:20] [INFO ] Computed and/alt/rep : 165/270/165 causal constraints (skipped 10 transitions) in 10 ms.
[2026-05-22 21:31:21] [INFO ] Added : 49 causal constraints over 10 iterations in 125 ms. Result :sat
Minimization took 87 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-22 21:31:21] [INFO ] [Real]Absence check using 6 positive place invariants in 4 ms returned sat
[2026-05-22 21:31:21] [INFO ] [Real]Absence check using 6 positive and 2 generalized place invariants in 3 ms returned sat
[2026-05-22 21:31:21] [INFO ] [Real]Absence check using state equation in 44 ms returned sat
[2026-05-22 21:31:21] [INFO ] [Real]Added 45 Read/Feed constraints in 4 ms returned sat
[2026-05-22 21:31:21] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-22 21:31:21] [INFO ] [Nat]Absence check using 6 positive place invariants in 2 ms returned sat
[2026-05-22 21:31:21] [INFO ] [Nat]Absence check using 6 positive and 2 generalized place invariants in 1 ms returned sat
[2026-05-22 21:31:21] [INFO ] [Nat]Absence check using state equation in 35 ms returned sat
[2026-05-22 21:31:21] [INFO ] [Nat]Added 45 Read/Feed constraints in 16 ms returned sat
[2026-05-22 21:31:21] [INFO ] Computed and/alt/rep : 165/270/165 causal constraints (skipped 10 transitions) in 14 ms.
[2026-05-22 21:31:21] [INFO ] Added : 38 causal constraints over 8 iterations in 107 ms. Result :sat
Minimization took 66 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-22 21:31:21] [INFO ] [Real]Absence check using 6 positive place invariants in 3 ms returned sat
[2026-05-22 21:31:21] [INFO ] [Real]Absence check using 6 positive and 2 generalized place invariants in 1 ms returned unsat
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-22 21:31:21] [INFO ] [Real]Absence check using 6 positive place invariants in 6 ms returned sat
[2026-05-22 21:31:21] [INFO ] [Real]Absence check using 6 positive and 2 generalized place invariants in 0 ms returned unsat
Current structural bounds on expressions (after SMT) : Max Seen:[1, 1, 1, 1, 1, 1, 1, 1, 1, 1] Max Struct:[5, 5, 5, 1, 1, 5, 5, 5, 1, 1]
FORMULA CANInsertWithFailure-PT-005-UpperBounds-15 1 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA CANInsertWithFailure-PT-005-UpperBounds-13 1 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA CANInsertWithFailure-PT-005-UpperBounds-06 1 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA CANInsertWithFailure-PT-005-UpperBounds-05 1 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[1, 1, 1, 1, 1, 1] Max Struct:[5, 5, 5, 5, 5, 5]
Support contains 6 out of 114 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 114/114 places, 180/180 transitions.
Graph (complete) has 276 edges and 114 vertex of which 113 are kept as prefixes of interest. Removing 1 places using SCC suffix rule.1 ms
Discarding 1 places :
Also discarding 0 output transitions
Drop transitions (Trivial Post-Agglo cleanup.) removed 34 transitions
Trivial Post-agglo rules discarded 34 transitions
Performed 34 trivial Post agglomeration. Transition count delta: 34
Iterating post reduction 0 with 34 rules applied. Total rules applied 35 place count 113 transition count 146
Reduce places removed 34 places and 0 transitions.
Iterating post reduction 1 with 34 rules applied. Total rules applied 69 place count 79 transition count 146
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 1 Pre rules applied. Total rules applied 69 place count 79 transition count 145
Deduced a syphon composed of 1 places in 1 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 2 with 2 rules applied. Total rules applied 71 place count 78 transition count 145
Performed 15 Post agglomeration using F-continuation condition.Transition count delta: 15
Deduced a syphon composed of 15 places in 0 ms
Reduce places removed 15 places and 0 transitions.
Iterating global reduction 2 with 30 rules applied. Total rules applied 101 place count 63 transition count 130
Drop transitions (Redundant composition of simpler transitions.) removed 9 transitions
Redundant transition composition rules discarded 9 transitions
Iterating global reduction 2 with 9 rules applied. Total rules applied 110 place count 63 transition count 121
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 2 with 1 rules applied. Total rules applied 111 place count 63 transition count 120
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 2 with 1 rules applied. Total rules applied 112 place count 62 transition count 120
Partial Free-agglomeration rule applied 36 times.
Drop transitions (Partial Free agglomeration) removed 36 transitions
Iterating global reduction 3 with 36 rules applied. Total rules applied 148 place count 62 transition count 120
Partial Free-agglomeration rule applied 9 times.
Drop transitions (Partial Free agglomeration) removed 9 transitions
Iterating global reduction 3 with 9 rules applied. Total rules applied 157 place count 62 transition count 120
Applied a total of 157 rules in 49 ms. Remains 62 /114 variables (removed 52) and now considering 120/180 (removed 60) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 56 ms. Remains : 62/114 places, 120/180 transitions.
// Phase 1: matrix 120 rows 62 cols
[2026-05-22 21:31:21] [INFO ] Computed 7 invariants in 2 ms
Current structural bounds on expressions (after invariants) : Max Seen:[1, 1, 1, 1, 1, 1] Max Struct:[5, 5, 5, 5, 5, 5]
RANDOM walk for 1000000 steps (31454 resets) in 1283 ms. (778 steps per ms)
BEST_FIRST walk for 6000006 steps (31113 resets) in 2240 ms. (2677 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[1, 1, 1, 1, 1, 1] Max Struct:[5, 5, 5, 5, 5, 5]
[2026-05-22 21:31:25] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-22 21:31:25] [INFO ] [Real]Absence check using 5 positive place invariants in 1 ms returned sat
[2026-05-22 21:31:25] [INFO ] [Real]Absence check using 5 positive and 2 generalized place invariants in 1 ms returned sat
[2026-05-22 21:31:25] [INFO ] [Real]Absence check using state equation in 19 ms returned sat
[2026-05-22 21:31:25] [INFO ] State equation strengthened by 97 read => feed constraints.
[2026-05-22 21:31:25] [INFO ] [Real]Added 97 Read/Feed constraints in 8 ms returned sat
[2026-05-22 21:31:25] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-22 21:31:25] [INFO ] [Nat]Absence check using 5 positive place invariants in 2 ms returned sat
[2026-05-22 21:31:25] [INFO ] [Nat]Absence check using 5 positive and 2 generalized place invariants in 2 ms returned sat
[2026-05-22 21:31:25] [INFO ] [Nat]Absence check using state equation in 20 ms returned sat
[2026-05-22 21:31:25] [INFO ] [Nat]Added 97 Read/Feed constraints in 13 ms returned sat
[2026-05-22 21:31:25] [INFO ] Computed and/alt/rep : 96/309/96 causal constraints (skipped 19 transitions) in 13 ms.
[2026-05-22 21:31:25] [INFO ] Added : 28 causal constraints over 6 iterations in 76 ms. Result :sat
Minimization took 50 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-22 21:31:25] [INFO ] [Real]Absence check using 5 positive place invariants in 2 ms returned sat
[2026-05-22 21:31:25] [INFO ] [Real]Absence check using 5 positive and 2 generalized place invariants in 1 ms returned sat
[2026-05-22 21:31:25] [INFO ] [Real]Absence check using state equation in 21 ms returned sat
[2026-05-22 21:31:25] [INFO ] [Real]Added 97 Read/Feed constraints in 9 ms returned sat
[2026-05-22 21:31:25] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-22 21:31:25] [INFO ] [Nat]Absence check using 5 positive place invariants in 2 ms returned sat
[2026-05-22 21:31:25] [INFO ] [Nat]Absence check using 5 positive and 2 generalized place invariants in 1 ms returned sat
[2026-05-22 21:31:25] [INFO ] [Nat]Absence check using state equation in 21 ms returned sat
[2026-05-22 21:31:25] [INFO ] [Nat]Added 97 Read/Feed constraints in 10 ms returned sat
[2026-05-22 21:31:25] [INFO ] Computed and/alt/rep : 96/309/96 causal constraints (skipped 19 transitions) in 7 ms.
[2026-05-22 21:31:25] [INFO ] Added : 27 causal constraints over 7 iterations in 80 ms. Result :sat
Minimization took 49 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-22 21:31:25] [INFO ] [Real]Absence check using 5 positive place invariants in 2 ms returned sat
[2026-05-22 21:31:25] [INFO ] [Real]Absence check using 5 positive and 2 generalized place invariants in 1 ms returned sat
[2026-05-22 21:31:25] [INFO ] [Real]Absence check using state equation in 21 ms returned sat
[2026-05-22 21:31:25] [INFO ] [Real]Added 97 Read/Feed constraints in 22 ms returned sat
[2026-05-22 21:31:25] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-22 21:31:25] [INFO ] [Nat]Absence check using 5 positive place invariants in 1 ms returned sat
[2026-05-22 21:31:25] [INFO ] [Nat]Absence check using 5 positive and 2 generalized place invariants in 0 ms returned sat
[2026-05-22 21:31:25] [INFO ] [Nat]Absence check using state equation in 19 ms returned sat
[2026-05-22 21:31:26] [INFO ] [Nat]Added 97 Read/Feed constraints in 12 ms returned sat
[2026-05-22 21:31:26] [INFO ] Computed and/alt/rep : 96/309/96 causal constraints (skipped 19 transitions) in 7 ms.
[2026-05-22 21:31:26] [INFO ] Added : 12 causal constraints over 3 iterations in 46 ms. Result :sat
Minimization took 50 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-22 21:31:26] [INFO ] [Real]Absence check using 5 positive place invariants in 2 ms returned sat
[2026-05-22 21:31:26] [INFO ] [Real]Absence check using 5 positive and 2 generalized place invariants in 1 ms returned sat
[2026-05-22 21:31:26] [INFO ] [Real]Absence check using state equation in 21 ms returned sat
[2026-05-22 21:31:26] [INFO ] [Real]Added 97 Read/Feed constraints in 7 ms returned sat
[2026-05-22 21:31:26] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-22 21:31:26] [INFO ] [Nat]Absence check using 5 positive place invariants in 2 ms returned sat
[2026-05-22 21:31:26] [INFO ] [Nat]Absence check using 5 positive and 2 generalized place invariants in 1 ms returned sat
[2026-05-22 21:31:26] [INFO ] [Nat]Absence check using state equation in 19 ms returned sat
[2026-05-22 21:31:26] [INFO ] [Nat]Added 97 Read/Feed constraints in 11 ms returned sat
[2026-05-22 21:31:26] [INFO ] Computed and/alt/rep : 96/309/96 causal constraints (skipped 19 transitions) in 7 ms.
[2026-05-22 21:31:26] [INFO ] Added : 23 causal constraints over 5 iterations in 57 ms. Result :sat
Minimization took 50 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-22 21:31:26] [INFO ] [Real]Absence check using 5 positive place invariants in 2 ms returned sat
[2026-05-22 21:31:26] [INFO ] [Real]Absence check using 5 positive and 2 generalized place invariants in 1 ms returned sat
[2026-05-22 21:31:26] [INFO ] [Real]Absence check using state equation in 20 ms returned sat
[2026-05-22 21:31:26] [INFO ] [Real]Added 97 Read/Feed constraints in 10 ms returned sat
[2026-05-22 21:31:26] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-22 21:31:26] [INFO ] [Nat]Absence check using 5 positive place invariants in 1 ms returned sat
[2026-05-22 21:31:26] [INFO ] [Nat]Absence check using 5 positive and 2 generalized place invariants in 1 ms returned sat
[2026-05-22 21:31:26] [INFO ] [Nat]Absence check using state equation in 21 ms returned sat
[2026-05-22 21:31:26] [INFO ] [Nat]Added 97 Read/Feed constraints in 12 ms returned sat
[2026-05-22 21:31:26] [INFO ] Computed and/alt/rep : 96/309/96 causal constraints (skipped 19 transitions) in 8 ms.
[2026-05-22 21:31:26] [INFO ] Added : 16 causal constraints over 4 iterations in 48 ms. Result :sat
Minimization took 47 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-22 21:31:26] [INFO ] [Real]Absence check using 5 positive place invariants in 2 ms returned sat
[2026-05-22 21:31:26] [INFO ] [Real]Absence check using 5 positive and 2 generalized place invariants in 1 ms returned sat
[2026-05-22 21:31:26] [INFO ] [Real]Absence check using state equation in 18 ms returned sat
[2026-05-22 21:31:26] [INFO ] [Real]Added 97 Read/Feed constraints in 7 ms returned sat
[2026-05-22 21:31:26] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-22 21:31:26] [INFO ] [Nat]Absence check using 5 positive place invariants in 2 ms returned sat
[2026-05-22 21:31:26] [INFO ] [Nat]Absence check using 5 positive and 2 generalized place invariants in 2 ms returned sat
[2026-05-22 21:31:26] [INFO ] [Nat]Absence check using state equation in 22 ms returned sat
[2026-05-22 21:31:26] [INFO ] [Nat]Added 97 Read/Feed constraints in 13 ms returned sat
[2026-05-22 21:31:26] [INFO ] Computed and/alt/rep : 96/309/96 causal constraints (skipped 19 transitions) in 8 ms.
[2026-05-22 21:31:26] [INFO ] Added : 23 causal constraints over 5 iterations in 65 ms. Result :sat
Minimization took 54 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[1, 1, 1, 1, 1, 1] Max Struct:[5, 5, 5, 5, 5, 5]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[1, 1, 1, 1, 1, 1] Max Struct:[5, 5, 5, 5, 5, 5]
Support contains 6 out of 62 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 62/62 places, 120/120 transitions.
Applied a total of 0 rules in 3 ms. Remains 62 /62 variables (removed 0) and now considering 120/120 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 3 ms. Remains : 62/62 places, 120/120 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 62/62 places, 120/120 transitions.
Applied a total of 0 rules in 3 ms. Remains 62 /62 variables (removed 0) and now considering 120/120 (removed 0) transitions.
[2026-05-22 21:31:26] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-22 21:31:26] [INFO ] Implicit Places using invariants in 75 ms returned []
[2026-05-22 21:31:26] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-22 21:31:26] [INFO ] State equation strengthened by 97 read => feed constraints.
[2026-05-22 21:31:27] [INFO ] Implicit Places using invariants and state equation in 171 ms returned []
Implicit Place search using SMT with State Equation took 247 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-22 21:31:27] [INFO ] Redundant transitions in 4 ms returned []
Running 115 sub problems to find dead transitions.
[2026-05-22 21:31:27] [INFO ] Invariant cache hit.
[2026-05-22 21:31:27] [INFO ] State equation strengthened by 97 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/61 variables, 5/5 constraints. Problems are: Problem set: 0 solved, 115 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/61 variables, 2/7 constraints. Problems are: Problem set: 0 solved, 115 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-22 21:31:27] [INFO ] Deduced a trap composed of 2 places in 42 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-22 21:31:27] [INFO ] Deduced a trap composed of 9 places in 30 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-22 21:31:27] [INFO ] Deduced a trap composed of 11 places in 25 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-22 21:31:27] [INFO ] Deduced a trap composed of 10 places in 25 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-22 21:31:27] [INFO ] Deduced a trap composed of 11 places in 39 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-22 21:31:27] [INFO ] Deduced a trap composed of 9 places in 37 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-22 21:31:27] [INFO ] Deduced a trap composed of 10 places in 48 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-22 21:31:27] [INFO ] Deduced a trap composed of 10 places in 27 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-22 21:31:27] [INFO ] Deduced a trap composed of 9 places in 30 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-22 21:31:28] [INFO ] Deduced a trap composed of 10 places in 27 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-22 21:31:28] [INFO ] Deduced a trap composed of 9 places in 32 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-22 21:31:28] [INFO ] Deduced a trap composed of 10 places in 28 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-22 21:31:28] [INFO ] Deduced a trap composed of 11 places in 44 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-22 21:31:28] [INFO ] Deduced a trap composed of 11 places in 40 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-22 21:31:28] [INFO ] Deduced a trap composed of 11 places in 35 ms of which 2 ms to minimize.
At refinement iteration 2 (INCLUDED_ONLY) 0/61 variables, 15/22 constraints. Problems are: Problem set: 0 solved, 115 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-22 21:31:28] [INFO ] Deduced a trap composed of 11 places in 46 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-22 21:31:28] [INFO ] Deduced a trap composed of 11 places in 27 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-22 21:31:28] [INFO ] Deduced a trap composed of 2 places in 41 ms of which 3 ms to minimize.
At refinement iteration 3 (INCLUDED_ONLY) 0/61 variables, 3/25 constraints. Problems are: Problem set: 0 solved, 115 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/61 variables, 0/25 constraints. Problems are: Problem set: 0 solved, 115 unsolved
At refinement iteration 5 (OVERLAPS) 120/181 variables, 61/86 constraints. Problems are: Problem set: 0 solved, 115 unsolved
Problem TDEAD90 is UNSAT
Problem TDEAD93 is UNSAT
Problem TDEAD95 is UNSAT
Problem TDEAD97 is UNSAT
Problem TDEAD99 is UNSAT
Problem TDEAD103 is UNSAT
Problem TDEAD107 is UNSAT
Problem TDEAD109 is UNSAT
Problem TDEAD116 is UNSAT
At refinement iteration 6 (INCLUDED_ONLY) 0/181 variables, 97/183 constraints. Problems are: Problem set: 9 solved, 106 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/181 variables, 0/183 constraints. Problems are: Problem set: 9 solved, 106 unsolved
At refinement iteration 8 (OVERLAPS) 1/182 variables, 1/184 constraints. Problems are: Problem set: 9 solved, 106 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/182 variables, 0/184 constraints. Problems are: Problem set: 9 solved, 106 unsolved
At refinement iteration 10 (OVERLAPS) 0/182 variables, 0/184 constraints. Problems are: Problem set: 9 solved, 106 unsolved
No progress, stopping.
After SMT solving in domain Real declared 182/182 variables, and 184 constraints, problems are : Problem set: 9 solved, 106 unsolved in 7853 ms.
Refiners :[Positive P Invariants (semi-flows): 5/5 constraints, Generalized P Invariants (flows): 2/2 constraints, State Equation: 62/62 constraints, ReadFeed: 97/97 constraints, PredecessorRefiner: 115/115 constraints, Known Traps: 18/18 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 9 solved, 106 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/61 variables, 5/5 constraints. Problems are: Problem set: 9 solved, 106 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/61 variables, 2/7 constraints. Problems are: Problem set: 9 solved, 106 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/61 variables, 18/25 constraints. Problems are: Problem set: 9 solved, 106 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/61 variables, 0/25 constraints. Problems are: Problem set: 9 solved, 106 unsolved
At refinement iteration 4 (OVERLAPS) 120/181 variables, 61/86 constraints. Problems are: Problem set: 9 solved, 106 unsolved
Problem TDEAD55 is UNSAT
Problem TDEAD105 is UNSAT
At refinement iteration 5 (INCLUDED_ONLY) 0/181 variables, 97/183 constraints. Problems are: Problem set: 11 solved, 104 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/181 variables, 104/287 constraints. Problems are: Problem set: 11 solved, 104 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/181 variables, 0/287 constraints. Problems are: Problem set: 11 solved, 104 unsolved
At refinement iteration 8 (OVERLAPS) 1/182 variables, 1/288 constraints. Problems are: Problem set: 11 solved, 104 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/182 variables, 0/288 constraints. Problems are: Problem set: 11 solved, 104 unsolved
At refinement iteration 10 (OVERLAPS) 0/182 variables, 0/288 constraints. Problems are: Problem set: 11 solved, 104 unsolved
No progress, stopping.
After SMT solving in domain Int declared 182/182 variables, and 288 constraints, problems are : Problem set: 11 solved, 104 unsolved in 8556 ms.
Refiners :[Positive P Invariants (semi-flows): 5/5 constraints, Generalized P Invariants (flows): 2/2 constraints, State Equation: 62/62 constraints, ReadFeed: 97/97 constraints, PredecessorRefiner: 104/115 constraints, Known Traps: 18/18 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 16466ms problems are : Problem set: 11 solved, 104 unsolved
Search for dead transitions found 11 dead transitions in 16482ms
Found 11 dead transitions using SMT.
Drop transitions (Dead Transitions using SMT only with invariants) removed 11 transitions
Dead transitions reduction (with SMT) removed 11 transitions
Starting structural reductions in REACHABILITY mode, iteration 1 : 62/62 places, 109/120 transitions.
Graph (complete) has 209 edges and 62 vertex of which 60 are kept as prefixes of interest. Removing 2 places using SCC suffix rule.1 ms
Discarding 2 places :
Also discarding 0 output transitions
Discarding 6 places :
Symmetric choice reduction at 0 with 6 rule applications. Total rules 7 place count 54 transition count 97
Iterating global reduction 0 with 6 rules applied. Total rules applied 13 place count 54 transition count 97
Applied a total of 13 rules in 9 ms. Remains 54 /62 variables (removed 8) and now considering 97/109 (removed 12) transitions.
// Phase 1: matrix 97 rows 54 cols
[2026-05-22 21:31:43] [INFO ] Computed 8 invariants in 1 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-22 21:31:43] [INFO ] Implicit Places using invariants in 52 ms returned [13, 30]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 53 ms to find 2 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 2 : 52/62 places, 97/120 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: -2
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 0 with 2 rules applied. Total rules applied 2 place count 51 transition count 99
Drop transitions (Redundant composition of simpler transitions.) removed 3 transitions
Redundant transition composition rules discarded 3 transitions
Iterating global reduction 0 with 3 rules applied. Total rules applied 5 place count 51 transition count 96
Applied a total of 5 rules in 9 ms. Remains 51 /52 variables (removed 1) and now considering 96/97 (removed 1) transitions.
// Phase 1: matrix 96 rows 51 cols
[2026-05-22 21:31:43] [INFO ] Computed 6 invariants in 1 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-22 21:31:43] [INFO ] Implicit Places using invariants in 45 ms returned []
[2026-05-22 21:31:43] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-22 21:31:43] [INFO ] State equation strengthened by 71 read => feed constraints.
[2026-05-22 21:31:43] [INFO ] Implicit Places using invariants and state equation in 88 ms returned []
Implicit Place search using SMT with State Equation took 134 ms to find 0 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 3 : 51/62 places, 96/120 transitions.
Finished structural reductions in REACHABILITY mode , in 3 iterations and 16964 ms. Remains : 51/62 places, 96/120 transitions.
[2026-05-22 21:31:43] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[1, 1, 1, 1, 1, 1] Max Struct:[1, 5, 5, 1, 5, 5]
FORMULA CANInsertWithFailure-PT-005-UpperBounds-08 1 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA CANInsertWithFailure-PT-005-UpperBounds-01 1 TECHNIQUES TOPOLOGICAL INITIAL_STATE
RANDOM walk for 1000000 steps (35793 resets) in 1016 ms. (983 steps per ms)
BEST_FIRST walk for 4000004 steps (27363 resets) in 1361 ms. (2936 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[1, 1, 1, 1] Max Struct:[5, 5, 5, 5]
[2026-05-22 21:31:46] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-22 21:31:46] [INFO ] [Real]Absence check using 6 positive place invariants in 1 ms returned sat
[2026-05-22 21:31:46] [INFO ] [Real]Absence check using state equation in 17 ms returned sat
[2026-05-22 21:31:46] [INFO ] State equation strengthened by 71 read => feed constraints.
[2026-05-22 21:31:46] [INFO ] [Real]Added 71 Read/Feed constraints in 9 ms returned sat
[2026-05-22 21:31:46] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-22 21:31:46] [INFO ] [Nat]Absence check using 6 positive place invariants in 2 ms returned sat
[2026-05-22 21:31:46] [INFO ] [Nat]Absence check using state equation in 15 ms returned sat
[2026-05-22 21:31:46] [INFO ] [Nat]Added 71 Read/Feed constraints in 4 ms returned unsat
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-22 21:31:46] [INFO ] [Real]Absence check using 6 positive place invariants in 2 ms returned sat
[2026-05-22 21:31:46] [INFO ] [Real]Absence check using state equation in 18 ms returned sat
[2026-05-22 21:31:46] [INFO ] [Real]Added 71 Read/Feed constraints in 7 ms returned sat
[2026-05-22 21:31:46] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-22 21:31:46] [INFO ] [Nat]Absence check using 6 positive place invariants in 2 ms returned sat
[2026-05-22 21:31:46] [INFO ] [Nat]Absence check using state equation in 20 ms returned sat
[2026-05-22 21:31:46] [INFO ] [Nat]Added 71 Read/Feed constraints in 10 ms returned sat
[2026-05-22 21:31:46] [INFO ] Computed and/alt/rep : 83/336/83 causal constraints (skipped 8 transitions) in 19 ms.
[2026-05-22 21:31:46] [INFO ] Added : 15 causal constraints over 3 iterations in 53 ms. Result :sat
Minimization took 25 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-22 21:31:46] [INFO ] [Real]Absence check using 6 positive place invariants in 1 ms returned sat
[2026-05-22 21:31:46] [INFO ] [Real]Absence check using state equation in 21 ms returned sat
[2026-05-22 21:31:46] [INFO ] [Real]Added 71 Read/Feed constraints in 19 ms returned sat
[2026-05-22 21:31:46] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-22 21:31:46] [INFO ] [Nat]Absence check using 6 positive place invariants in 2 ms returned sat
[2026-05-22 21:31:46] [INFO ] [Nat]Absence check using state equation in 17 ms returned sat
[2026-05-22 21:31:46] [INFO ] [Nat]Added 71 Read/Feed constraints in 7 ms returned sat
[2026-05-22 21:31:46] [INFO ] Computed and/alt/rep : 83/336/83 causal constraints (skipped 8 transitions) in 4 ms.
[2026-05-22 21:31:46] [INFO ] Added : 20 causal constraints over 4 iterations in 41 ms. Result :sat
Minimization took 27 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-22 21:31:46] [INFO ] [Real]Absence check using 6 positive place invariants in 2 ms returned sat
[2026-05-22 21:31:46] [INFO ] [Real]Absence check using state equation in 16 ms returned sat
[2026-05-22 21:31:46] [INFO ] [Real]Added 71 Read/Feed constraints in 6 ms returned sat
[2026-05-22 21:31:46] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-22 21:31:46] [INFO ] [Nat]Absence check using 6 positive place invariants in 2 ms returned sat
[2026-05-22 21:31:46] [INFO ] [Nat]Absence check using state equation in 16 ms returned sat
[2026-05-22 21:31:46] [INFO ] [Nat]Added 71 Read/Feed constraints in 6 ms returned unsat
Current structural bounds on expressions (after SMT) : Max Seen:[1, 1, 1, 1] Max Struct:[1, 5, 5, 1]
FORMULA CANInsertWithFailure-PT-005-UpperBounds-12 1 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA CANInsertWithFailure-PT-005-UpperBounds-02 1 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[1, 1] Max Struct:[5, 5]
Support contains 2 out of 51 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 51/51 places, 96/96 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 1 transitions
Trivial Post-agglo rules discarded 1 transitions
Performed 1 trivial Post agglomeration. Transition count delta: 1
Iterating post reduction 0 with 1 rules applied. Total rules applied 1 place count 51 transition count 95
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 1 with 1 rules applied. Total rules applied 2 place count 50 transition count 95
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 2 with 2 rules applied. Total rules applied 4 place count 49 transition count 94
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: -2
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 2 with 2 rules applied. Total rules applied 6 place count 48 transition count 96
Drop transitions (Redundant composition of simpler transitions.) removed 3 transitions
Redundant transition composition rules discarded 3 transitions
Iterating global reduction 2 with 3 rules applied. Total rules applied 9 place count 48 transition count 93
Partial Free-agglomeration rule applied 2 times.
Drop transitions (Partial Free agglomeration) removed 2 transitions
Iterating global reduction 2 with 2 rules applied. Total rules applied 11 place count 48 transition count 93
Applied a total of 11 rules in 15 ms. Remains 48 /51 variables (removed 3) and now considering 93/96 (removed 3) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 15 ms. Remains : 48/51 places, 93/96 transitions.
// Phase 1: matrix 93 rows 48 cols
[2026-05-22 21:31:46] [INFO ] Computed 6 invariants in 1 ms
Current structural bounds on expressions (after invariants) : Max Seen:[1, 1] Max Struct:[5, 5]
RANDOM walk for 1000000 steps (44654 resets) in 1048 ms. (953 steps per ms)
BEST_FIRST walk for 2000002 steps (16404 resets) in 681 ms. (2932 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[1, 1] Max Struct:[5, 5]
[2026-05-22 21:31:48] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-22 21:31:48] [INFO ] [Real]Absence check using 6 positive place invariants in 2 ms returned sat
[2026-05-22 21:31:48] [INFO ] [Real]Absence check using state equation in 19 ms returned sat
[2026-05-22 21:31:48] [INFO ] State equation strengthened by 74 read => feed constraints.
[2026-05-22 21:31:48] [INFO ] [Real]Added 74 Read/Feed constraints in 7 ms returned sat
[2026-05-22 21:31:48] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-22 21:31:48] [INFO ] [Nat]Absence check using 6 positive place invariants in 1 ms returned sat
[2026-05-22 21:31:48] [INFO ] [Nat]Absence check using state equation in 15 ms returned sat
[2026-05-22 21:31:48] [INFO ] [Nat]Added 74 Read/Feed constraints in 6 ms returned sat
[2026-05-22 21:31:48] [INFO ] Computed and/alt/rep : 75/319/75 causal constraints (skipped 13 transitions) in 10 ms.
[2026-05-22 21:31:48] [INFO ] Added : 16 causal constraints over 4 iterations in 37 ms. Result :sat
Minimization took 20 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-22 21:31:48] [INFO ] [Real]Absence check using 6 positive place invariants in 2 ms returned sat
[2026-05-22 21:31:48] [INFO ] [Real]Absence check using state equation in 16 ms returned sat
[2026-05-22 21:31:48] [INFO ] [Real]Added 74 Read/Feed constraints in 7 ms returned sat
[2026-05-22 21:31:48] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-22 21:31:48] [INFO ] [Nat]Absence check using 6 positive place invariants in 2 ms returned sat
[2026-05-22 21:31:48] [INFO ] [Nat]Absence check using state equation in 16 ms returned sat
[2026-05-22 21:31:48] [INFO ] [Nat]Added 74 Read/Feed constraints in 6 ms returned sat
[2026-05-22 21:31:48] [INFO ] Computed and/alt/rep : 75/319/75 causal constraints (skipped 13 transitions) in 5 ms.
[2026-05-22 21:31:48] [INFO ] Added : 12 causal constraints over 3 iterations in 27 ms. Result :sat
Minimization took 19 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[1, 1] Max Struct:[5, 5]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[1, 1] Max Struct:[5, 5]
Support contains 2 out of 48 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 48/48 places, 93/93 transitions.
Applied a total of 0 rules in 3 ms. Remains 48 /48 variables (removed 0) and now considering 93/93 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 3 ms. Remains : 48/48 places, 93/93 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 48/48 places, 93/93 transitions.
Applied a total of 0 rules in 3 ms. Remains 48 /48 variables (removed 0) and now considering 93/93 (removed 0) transitions.
[2026-05-22 21:31:48] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-22 21:31:48] [INFO ] Implicit Places using invariants in 39 ms returned []
[2026-05-22 21:31:48] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-22 21:31:48] [INFO ] State equation strengthened by 74 read => feed constraints.
[2026-05-22 21:31:49] [INFO ] Implicit Places using invariants and state equation in 86 ms returned []
Implicit Place search using SMT with State Equation took 146 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-22 21:31:49] [INFO ] Redundant transitions in 1 ms returned []
Running 88 sub problems to find dead transitions.
[2026-05-22 21:31:49] [INFO ] Invariant cache hit.
[2026-05-22 21:31:49] [INFO ] State equation strengthened by 74 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/47 variables, 6/6 constraints. Problems are: Problem set: 0 solved, 88 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-22 21:31:49] [INFO ] Deduced a trap composed of 7 places in 19 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-22 21:31:49] [INFO ] Deduced a trap composed of 2 places in 22 ms of which 2 ms to minimize.
At refinement iteration 1 (INCLUDED_ONLY) 0/47 variables, 2/8 constraints. Problems are: Problem set: 0 solved, 88 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/47 variables, 0/8 constraints. Problems are: Problem set: 0 solved, 88 unsolved
At refinement iteration 3 (OVERLAPS) 93/140 variables, 47/55 constraints. Problems are: Problem set: 0 solved, 88 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/140 variables, 74/129 constraints. Problems are: Problem set: 0 solved, 88 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-22 21:31:49] [INFO ] Deduced a trap composed of 9 places in 29 ms of which 2 ms to minimize.
At refinement iteration 5 (INCLUDED_ONLY) 0/140 variables, 1/130 constraints. Problems are: Problem set: 0 solved, 88 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/140 variables, 0/130 constraints. Problems are: Problem set: 0 solved, 88 unsolved
At refinement iteration 7 (OVERLAPS) 1/141 variables, 1/131 constraints. Problems are: Problem set: 0 solved, 88 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/141 variables, 0/131 constraints. Problems are: Problem set: 0 solved, 88 unsolved
At refinement iteration 9 (OVERLAPS) 0/141 variables, 0/131 constraints. Problems are: Problem set: 0 solved, 88 unsolved
No progress, stopping.
After SMT solving in domain Real declared 141/141 variables, and 131 constraints, problems are : Problem set: 0 solved, 88 unsolved in 4159 ms.
Refiners :[Positive P Invariants (semi-flows): 6/6 constraints, State Equation: 48/48 constraints, ReadFeed: 74/74 constraints, PredecessorRefiner: 88/88 constraints, Known Traps: 3/3 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 88 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/47 variables, 6/6 constraints. Problems are: Problem set: 0 solved, 88 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/47 variables, 3/9 constraints. Problems are: Problem set: 0 solved, 88 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/47 variables, 0/9 constraints. Problems are: Problem set: 0 solved, 88 unsolved
At refinement iteration 3 (OVERLAPS) 93/140 variables, 47/56 constraints. Problems are: Problem set: 0 solved, 88 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/140 variables, 74/130 constraints. Problems are: Problem set: 0 solved, 88 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/140 variables, 88/218 constraints. Problems are: Problem set: 0 solved, 88 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/140 variables, 0/218 constraints. Problems are: Problem set: 0 solved, 88 unsolved
At refinement iteration 7 (OVERLAPS) 1/141 variables, 1/219 constraints. Problems are: Problem set: 0 solved, 88 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/141 variables, 0/219 constraints. Problems are: Problem set: 0 solved, 88 unsolved
At refinement iteration 9 (OVERLAPS) 0/141 variables, 0/219 constraints. Problems are: Problem set: 0 solved, 88 unsolved
No progress, stopping.
After SMT solving in domain Int declared 141/141 variables, and 219 constraints, problems are : Problem set: 0 solved, 88 unsolved in 3517 ms.
Refiners :[Positive P Invariants (semi-flows): 6/6 constraints, State Equation: 48/48 constraints, ReadFeed: 74/74 constraints, PredecessorRefiner: 88/88 constraints, Known Traps: 3/3 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 7688ms problems are : Problem set: 0 solved, 88 unsolved
Search for dead transitions found 0 dead transitions in 7690ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 7846 ms. Remains : 48/48 places, 93/93 transitions.
RANDOM walk for 40000 steps (1783 resets) in 682 ms. (58 steps per ms) remains 4/4 properties
BEST_FIRST walk for 40003 steps (325 resets) in 145 ms. (273 steps per ms) remains 4/4 properties
BEST_FIRST walk for 40004 steps (316 resets) in 103 ms. (384 steps per ms) remains 4/4 properties
BEST_FIRST walk for 40004 steps (337 resets) in 103 ms. (384 steps per ms) remains 4/4 properties
BEST_FIRST walk for 40004 steps (342 resets) in 131 ms. (303 steps per ms) remains 4/4 properties
[2026-05-22 21:31:57] [INFO ] Flatten gal took : 55 ms
[2026-05-22 21:31:57] [INFO ] Flatten gal took : 10 ms
Probably explored full state space saw : 6732 states, properties seen :0
Probabilistic random walk after 38412 steps, saw 6732 distinct states, run finished after 160 ms. (steps per millisecond=240 ) properties seen :0
[2026-05-22 21:31:57] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality12572642079454153847.gal : 6 ms
[2026-05-22 21:31:57] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality10997838784357751825.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/ReachabilityCardinality12572642079454153847.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality10997838784357751825.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/ReachabilityCardinality10997838784357751825.prop.
SDD proceeding with computation,4 properties remain. new max is 4
SDD size :1 after 12
SDD proceeding with computation,4 properties remain. new max is 8
SDD size :12 after 15
SDD proceeding with computation,4 properties remain. new max is 16
SDD size :15 after 17
SDD proceeding with computation,4 properties remain. new max is 32
SDD size :17 after 47
SDD proceeding with computation,4 properties remain. new max is 64
SDD size :47 after 157
SDD proceeding with computation,4 properties remain. new max is 128
SDD size :157 after 422
SDD proceeding with computation,4 properties remain. new max is 256
SDD size :422 after 2659
SDD proceeding with computation,4 properties remain. new max is 512
SDD size :2659 after 3508
Explored full state space saw : 6732 states, properties seen :0
Exhaustive walk after 38412 steps, saw 6732 distinct states, run finished after 139 ms. (steps per millisecond=276 ) properties seen :0
ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
FORMULA CANInsertWithFailure-PT-005-UpperBounds-11 1 TECHNIQUES REACHABILITY_MIN
FORMULA CANInsertWithFailure-PT-005-UpperBounds-04 1 TECHNIQUES REACHABILITY_MIN
Current structural bounds on expressions (After reachability solving 2 queries.) : Max Seen:[] Max Struct:[]
All properties solved without resorting to model-checking.
Total runtime 39276 ms.

BK_STOP 1779485517518

--------------------
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="CANInsertWithFailure-PT-005"
export BK_EXAMINATION="UpperBounds"
export BK_TOOL="gold2025"
export BK_RESULT_DIR="/tmp/BK_RESULTS/OUTPUTS"
export BK_TIME_CONFINEMENT="3600"
export BK_MEMORY_CONFINEMENT="16384"
export BK_BIN_PATH="/home/mcc/BenchKit/bin/"

# this is specific to your benchmark or test

export BIN_DIR="$HOME/BenchKit/bin"

# remove the execution directoty if it exists (to avoid increse of .vmdk images)
if [ -d execution ] ; then
rm -rf execution
fi

# this is for BenchKit: explicit launching of the test
echo "====================================================================="
echo " Generated by BenchKit 2-5973"
echo " Executing tool gold2025"
echo " Input is CANInsertWithFailure-PT-005, 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 r047-tall-177946846500088"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/CANInsertWithFailure-PT-005.tgz
mv CANInsertWithFailure-PT-005 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 ;