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.r127-smll-177955743800001.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 DoubleLock-PT-p1s1, examination is UpperBounds
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r127-smll-177955743800001
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 564K
-rw-r--r-- 1 mcc users 7.0K Mar 6 18:10 CTLCardinality.txt
-rw-r--r-- 1 mcc users 78K Mar 6 18:10 CTLCardinality.xml
-rw-r--r-- 1 mcc users 4.5K Mar 6 18:10 CTLFireability.txt
-rw-r--r-- 1 mcc users 37K Mar 6 18:10 CTLFireability.xml
-rw-r--r-- 1 mcc users 3.9K Mar 15 09:38 LTLCardinality.txt
-rw-r--r-- 1 mcc users 29K Mar 15 09:38 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.3K Mar 15 09:38 LTLFireability.txt
-rw-r--r-- 1 mcc users 19K Mar 15 09:38 LTLFireability.xml
-rw-r--r-- 1 mcc users 11K Mar 6 18:10 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 120K Mar 6 18:10 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 12K Mar 6 18:10 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 106K Mar 6 18:10 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K Mar 15 09:38 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K Mar 15 09:38 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 equiv_col
-rw-r--r-- 1 mcc users 5 Mar 3 18:30 instance
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 iscolored
-rw-r--r-- 1 mcc users 93K 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 DoubleLock-PT-p1s1-UpperBounds-00
FORMULA_NAME DoubleLock-PT-p1s1-UpperBounds-01
FORMULA_NAME DoubleLock-PT-p1s1-UpperBounds-02
FORMULA_NAME DoubleLock-PT-p1s1-UpperBounds-03
FORMULA_NAME DoubleLock-PT-p1s1-UpperBounds-04
FORMULA_NAME DoubleLock-PT-p1s1-UpperBounds-05
FORMULA_NAME DoubleLock-PT-p1s1-UpperBounds-06
FORMULA_NAME DoubleLock-PT-p1s1-UpperBounds-07
FORMULA_NAME DoubleLock-PT-p1s1-UpperBounds-08
FORMULA_NAME DoubleLock-PT-p1s1-UpperBounds-09
FORMULA_NAME DoubleLock-PT-p1s1-UpperBounds-10
FORMULA_NAME DoubleLock-PT-p1s1-UpperBounds-11
FORMULA_NAME DoubleLock-PT-p1s1-UpperBounds-12
FORMULA_NAME DoubleLock-PT-p1s1-UpperBounds-13
FORMULA_NAME DoubleLock-PT-p1s1-UpperBounds-14
FORMULA_NAME DoubleLock-PT-p1s1-UpperBounds-15

=== Now, execution of the tool begins

BK_START 1779558009176

Invoking MCC driver with
GOLD_TOOL=
BK_EXAMINATION=UpperBounds
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=DoubleLock-PT-p1s1
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
UpperBounds PT
Running Version 202505121319
[2026-05-23 17:40:11] [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]
[2026-05-23 17:40:11] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-23 17:40:11] [INFO ] Load time of PNML (sax parser for PT used): 129 ms
[2026-05-23 17:40:11] [INFO ] Transformed 64 places.
[2026-05-23 17:40:11] [INFO ] Transformed 204 transitions.
[2026-05-23 17:40:11] [INFO ] Parsed PT model containing 64 places and 204 transitions and 828 arcs in 303 ms.
Parsed 16 properties from file /home/mcc/execution/UpperBounds.xml in 11 ms.
Deduced a syphon composed of 8 places in 2 ms
Reduce places removed 8 places and 8 transitions.
FORMULA DoubleLock-PT-p1s1-UpperBounds-14 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
Current structural bounds on expressions (Initially) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (Before main loop) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2026-05-23 17:40:11] [INFO ] Flow matrix only has 148 transitions (discarded 48 similar events)
// Phase 1: matrix 148 rows 56 cols
[2026-05-23 17:40:11] [INFO ] Computed 4 invariants in 21 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[+inf, 1, 1, 1, 1, +inf, +inf, 10, 1, 1, +inf, 1, 1, 1, 1]
RANDOM walk for 10001 steps (81 resets) in 52 ms. (188 steps per ms)
FORMULA DoubleLock-PT-p1s1-UpperBounds-15 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA DoubleLock-PT-p1s1-UpperBounds-13 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA DoubleLock-PT-p1s1-UpperBounds-12 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA DoubleLock-PT-p1s1-UpperBounds-11 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA DoubleLock-PT-p1s1-UpperBounds-09 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA DoubleLock-PT-p1s1-UpperBounds-08 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA DoubleLock-PT-p1s1-UpperBounds-07 10 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA DoubleLock-PT-p1s1-UpperBounds-04 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA DoubleLock-PT-p1s1-UpperBounds-03 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA DoubleLock-PT-p1s1-UpperBounds-02 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA DoubleLock-PT-p1s1-UpperBounds-01 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 40003 steps (33 resets) in 126 ms. (314 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[3, 22, 21, 14] Max Struct:[+inf, +inf, +inf, +inf]
[2026-05-23 17:40:11] [INFO ] Flow matrix only has 148 transitions (discarded 48 similar events)
[2026-05-23 17:40:11] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 17:40:12] [INFO ] [Real]Absence check using 3 positive place invariants in 15 ms returned sat
[2026-05-23 17:40:12] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 2 ms returned sat
[2026-05-23 17:40:12] [INFO ] [Real]Absence check using state equation in 120 ms returned sat
[2026-05-23 17:40:12] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 17:40:12] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2026-05-23 17:40:12] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 20 ms returned sat
[2026-05-23 17:40:12] [INFO ] [Nat]Absence check using state equation in 116 ms returned sat
[2026-05-23 17:40:12] [INFO ] State equation strengthened by 23 read => feed constraints.
[2026-05-23 17:40:12] [INFO ] [Nat]Added 23 Read/Feed constraints in 17 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 17:40:12] [INFO ] Deduced a trap composed of 12 places in 154 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 17:40:12] [INFO ] Deduced a trap composed of 12 places in 212 ms of which 16 ms to minimize.
[2026-05-23 17:40:13] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 434 ms
[2026-05-23 17:40:13] [INFO ] Computed and/alt/rep : 63/438/63 causal constraints (skipped 83 transitions) in 84 ms.
[2026-05-23 17:40:13] [INFO ] Added : 18 causal constraints over 4 iterations in 234 ms. Result :sat
Minimization took 52 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 17:40:13] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2026-05-23 17:40:13] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 0 ms returned sat
[2026-05-23 17:40:13] [INFO ] [Real]Absence check using state equation in 59 ms returned sat
[2026-05-23 17:40:13] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 17:40:13] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2026-05-23 17:40:13] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2026-05-23 17:40:13] [INFO ] [Nat]Absence check using state equation in 70 ms returned sat
[2026-05-23 17:40:13] [INFO ] [Nat]Added 23 Read/Feed constraints in 12 ms returned sat
[2026-05-23 17:40:13] [INFO ] Computed and/alt/rep : 63/438/63 causal constraints (skipped 83 transitions) in 30 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 17:40:13] [INFO ] Deduced a trap composed of 16 places in 79 ms of which 4 ms to minimize.
[2026-05-23 17:40:13] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 105 ms
[2026-05-23 17:40:13] [INFO ] Added : 14 causal constraints over 4 iterations in 236 ms. Result :sat
Minimization took 40 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 17:40:13] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2026-05-23 17:40:13] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2026-05-23 17:40:13] [INFO ] [Real]Absence check using state equation in 67 ms returned sat
[2026-05-23 17:40:13] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 17:40:14] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2026-05-23 17:40:14] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 2 ms returned sat
[2026-05-23 17:40:14] [INFO ] [Nat]Absence check using state equation in 62 ms returned sat
[2026-05-23 17:40:14] [INFO ] [Nat]Added 23 Read/Feed constraints in 13 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 17:40:14] [INFO ] Deduced a trap composed of 12 places in 140 ms of which 5 ms to minimize.
[2026-05-23 17:40:14] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 166 ms
[2026-05-23 17:40:14] [INFO ] Computed and/alt/rep : 63/438/63 causal constraints (skipped 83 transitions) in 23 ms.
[2026-05-23 17:40:14] [INFO ] Added : 8 causal constraints over 3 iterations in 83 ms. Result :sat
Minimization took 39 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 17:40:14] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2026-05-23 17:40:14] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2026-05-23 17:40:14] [INFO ] [Real]Absence check using state equation in 54 ms returned sat
[2026-05-23 17:40:14] [INFO ] [Real]Added 23 Read/Feed constraints in 8 ms returned sat
[2026-05-23 17:40:14] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 17:40:14] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2026-05-23 17:40:14] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 2 ms returned sat
[2026-05-23 17:40:14] [INFO ] [Nat]Absence check using state equation in 64 ms returned sat
[2026-05-23 17:40:14] [INFO ] [Nat]Added 23 Read/Feed constraints in 10 ms returned sat
[2026-05-23 17:40:14] [INFO ] Computed and/alt/rep : 63/438/63 causal constraints (skipped 83 transitions) in 32 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 17:40:14] [INFO ] Deduced a trap composed of 12 places in 85 ms of which 5 ms to minimize.
[2026-05-23 17:40:14] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 107 ms
[2026-05-23 17:40:14] [INFO ] Added : 10 causal constraints over 2 iterations in 210 ms. Result :sat
Minimization took 38 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[3, 22, 21, 14] Max Struct:[+inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[3, 22, 21, 14] Max Struct:[+inf, +inf, +inf, +inf]
Support contains 4 out of 56 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 56/56 places, 196/196 transitions.
Graph (complete) has 357 edges and 56 vertex of which 52 are kept as prefixes of interest. Removing 4 places using SCC suffix rule.1 ms
Discarding 4 places :
Also discarding 0 output transitions
Drop transitions (Empty/Sink Transition effects.) removed 4 transitions
Reduce isomorphic transitions removed 4 transitions.
Iterating post reduction 0 with 4 rules applied. Total rules applied 5 place count 52 transition count 192
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 6 place count 51 transition count 188
Iterating global reduction 1 with 1 rules applied. Total rules applied 7 place count 51 transition count 188
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 8 place count 50 transition count 184
Iterating global reduction 1 with 1 rules applied. Total rules applied 9 place count 50 transition count 184
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 10 place count 49 transition count 180
Iterating global reduction 1 with 1 rules applied. Total rules applied 11 place count 49 transition count 180
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 12 place count 48 transition count 172
Iterating global reduction 1 with 1 rules applied. Total rules applied 13 place count 48 transition count 172
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 14 place count 47 transition count 164
Iterating global reduction 1 with 1 rules applied. Total rules applied 15 place count 47 transition count 164
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 16 place count 46 transition count 160
Iterating global reduction 1 with 1 rules applied. Total rules applied 17 place count 46 transition count 160
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 18 place count 45 transition count 156
Iterating global reduction 1 with 1 rules applied. Total rules applied 19 place count 45 transition count 156
Applied a total of 19 rules in 62 ms. Remains 45 /56 variables (removed 11) and now considering 156/196 (removed 40) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 75 ms. Remains : 45/56 places, 156/196 transitions.
[2026-05-23 17:40:15] [INFO ] Flow matrix only has 116 transitions (discarded 40 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {5=2, 11=1, 19=1, 69=1, 70=1, 110=2}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {11=1, 19=1, 72=1, 73=1, 113=2}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 63 ms. (steps per millisecond=158 ) properties (out of 4) seen :[4, 6, 2147483647, 7]
Current structural bounds on expressions (after cover walk) : Max Seen:[4, 22, +inf, 14] Max Struct:[+inf, +inf, +inf, +inf]
[2026-05-23 17:40:15] [INFO ] Flow matrix only has 116 transitions (discarded 40 similar events)
// Phase 1: matrix 116 rows 45 cols
[2026-05-23 17:40:15] [INFO ] Computed 3 invariants in 4 ms
Current structural bounds on expressions (after invariants) : Max Seen:[4, 22, +inf, 14] Max Struct:[+inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 2003 ms. (499 steps per ms)
FORMULA DoubleLock-PT-p1s1-UpperBounds-06 +inf TECHNIQUES TOPOLOGICAL RANDOM_WALK
BEST_FIRST walk for 3000003 steps (6 resets) in 1846 ms. (1624 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[12, 22, 17] Max Struct:[+inf, +inf, +inf]
[2026-05-23 17:40:19] [INFO ] Flow matrix only has 116 transitions (discarded 40 similar events)
[2026-05-23 17:40:19] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-23 17:40:19] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2026-05-23 17:40:19] [INFO ] [Real]Absence check using state equation in 47 ms returned sat
[2026-05-23 17:40:19] [INFO ] State equation strengthened by 21 read => feed constraints.
[2026-05-23 17:40:19] [INFO ] [Real]Added 21 Read/Feed constraints in 10 ms returned sat
[2026-05-23 17:40:19] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-23 17:40:19] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2026-05-23 17:40:19] [INFO ] [Nat]Absence check using state equation in 45 ms returned sat
[2026-05-23 17:40:19] [INFO ] [Nat]Added 21 Read/Feed constraints in 10 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 17:40:19] [INFO ] Deduced a trap composed of 11 places in 92 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 17:40:19] [INFO ] Deduced a trap composed of 11 places in 72 ms of which 7 ms to minimize.
[2026-05-23 17:40:19] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 183 ms
[2026-05-23 17:40:19] [INFO ] Computed and/alt/rep : 50/316/50 causal constraints (skipped 64 transitions) in 18 ms.
[2026-05-23 17:40:19] [INFO ] Added : 15 causal constraints over 3 iterations in 81 ms. Result :sat
Minimization took 35 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-23 17:40:19] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2026-05-23 17:40:19] [INFO ] [Real]Absence check using state equation in 43 ms returned sat
[2026-05-23 17:40:19] [INFO ] [Real]Added 21 Read/Feed constraints in 9 ms returned sat
[2026-05-23 17:40:19] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-23 17:40:19] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2026-05-23 17:40:19] [INFO ] [Nat]Absence check using state equation in 43 ms returned sat
[2026-05-23 17:40:20] [INFO ] [Nat]Added 21 Read/Feed constraints in 8 ms returned sat
[2026-05-23 17:40:20] [INFO ] Computed and/alt/rep : 50/316/50 causal constraints (skipped 64 transitions) in 19 ms.
[2026-05-23 17:40:20] [INFO ] Added : 10 causal constraints over 2 iterations in 73 ms. Result :sat
Minimization took 36 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-23 17:40:20] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2026-05-23 17:40:20] [INFO ] [Real]Absence check using state equation in 41 ms returned sat
[2026-05-23 17:40:20] [INFO ] [Real]Added 21 Read/Feed constraints in 7 ms returned sat
[2026-05-23 17:40:20] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-23 17:40:20] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-23 17:40:20] [INFO ] [Nat]Absence check using state equation in 42 ms returned sat
[2026-05-23 17:40:20] [INFO ] [Nat]Added 21 Read/Feed constraints in 9 ms returned sat
[2026-05-23 17:40:20] [INFO ] Computed and/alt/rep : 50/316/50 causal constraints (skipped 64 transitions) in 18 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 17:40:20] [INFO ] Deduced a trap composed of 11 places in 69 ms of which 4 ms to minimize.
[2026-05-23 17:40:20] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 86 ms
[2026-05-23 17:40:20] [INFO ] Added : 12 causal constraints over 3 iterations in 163 ms. Result :sat
Minimization took 35 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[12, 22, 17] Max Struct:[+inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[12, 22, 17] Max Struct:[+inf, +inf, +inf]
Support contains 3 out of 45 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 45/45 places, 156/156 transitions.
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 1 place count 44 transition count 152
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 44 transition count 152
Applied a total of 2 rules in 12 ms. Remains 44 /45 variables (removed 1) and now considering 152/156 (removed 4) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 13 ms. Remains : 44/45 places, 152/156 transitions.
[2026-05-23 17:40:20] [INFO ] Flow matrix only has 108 transitions (discarded 44 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {5=2, 6=2, 11=1, 18=1, 24=2, 35=2, 51=2, 65=1, 66=1, 70=2, 72=2, 73=2, 94=2, 104=2}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {11=1, 18=1, 62=1, 63=1, 102=2}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 118 ms. (steps per millisecond=84 ) properties (out of 3) seen :[6, 5, 5]
Current structural bounds on expressions (after cover walk) : Max Seen:[12, 22, 17] Max Struct:[+inf, +inf, +inf]
[2026-05-23 17:40:20] [INFO ] Flow matrix only has 108 transitions (discarded 44 similar events)
// Phase 1: matrix 108 rows 44 cols
[2026-05-23 17:40:20] [INFO ] Computed 3 invariants in 2 ms
Current structural bounds on expressions (after invariants) : Max Seen:[12, 22, 17] Max Struct:[+inf, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 1671 ms. (598 steps per ms)
BEST_FIRST walk for 3000002 steps (6 resets) in 1647 ms. (1820 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[17, 22, 19] Max Struct:[+inf, +inf, +inf]
[2026-05-23 17:40:24] [INFO ] Flow matrix only has 108 transitions (discarded 44 similar events)
[2026-05-23 17:40:24] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-23 17:40:24] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2026-05-23 17:40:24] [INFO ] [Real]Absence check using state equation in 33 ms returned sat
[2026-05-23 17:40:24] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-23 17:40:24] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2026-05-23 17:40:24] [INFO ] [Nat]Absence check using state equation in 38 ms returned sat
[2026-05-23 17:40:24] [INFO ] State equation strengthened by 17 read => feed constraints.
[2026-05-23 17:40:24] [INFO ] [Nat]Added 17 Read/Feed constraints in 23 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 17:40:24] [INFO ] Deduced a trap composed of 10 places in 74 ms of which 6 ms to minimize.
[2026-05-23 17:40:24] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 85 ms
[2026-05-23 17:40:24] [INFO ] Computed and/alt/rep : 49/276/48 causal constraints (skipped 58 transitions) in 24 ms.
[2026-05-23 17:40:24] [INFO ] Added : 13 causal constraints over 3 iterations in 79 ms. Result :sat
Minimization took 33 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-23 17:40:24] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2026-05-23 17:40:24] [INFO ] [Real]Absence check using state equation in 50 ms returned sat
[2026-05-23 17:40:24] [INFO ] [Real]Added 17 Read/Feed constraints in 7 ms returned sat
[2026-05-23 17:40:24] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-23 17:40:24] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2026-05-23 17:40:24] [INFO ] [Nat]Absence check using state equation in 42 ms returned sat
[2026-05-23 17:40:24] [INFO ] [Nat]Added 17 Read/Feed constraints in 7 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 17:40:24] [INFO ] Deduced a trap composed of 10 places in 72 ms of which 8 ms to minimize.
[2026-05-23 17:40:24] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 86 ms
[2026-05-23 17:40:24] [INFO ] Computed and/alt/rep : 49/276/48 causal constraints (skipped 58 transitions) in 16 ms.
[2026-05-23 17:40:24] [INFO ] Added : 13 causal constraints over 4 iterations in 72 ms. Result :sat
Minimization took 31 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-23 17:40:24] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2026-05-23 17:40:25] [INFO ] [Real]Absence check using state equation in 39 ms returned sat
[2026-05-23 17:40:25] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-23 17:40:25] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2026-05-23 17:40:25] [INFO ] [Nat]Absence check using state equation in 38 ms returned sat
[2026-05-23 17:40:25] [INFO ] [Nat]Added 17 Read/Feed constraints in 9 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 17:40:25] [INFO ] Deduced a trap composed of 10 places in 71 ms of which 4 ms to minimize.
[2026-05-23 17:40:25] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 83 ms
[2026-05-23 17:40:25] [INFO ] Computed and/alt/rep : 49/276/48 causal constraints (skipped 58 transitions) in 15 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 17:40:25] [INFO ] Deduced a trap composed of 11 places in 62 ms of which 3 ms to minimize.
[2026-05-23 17:40:25] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 80 ms
[2026-05-23 17:40:25] [INFO ] Added : 12 causal constraints over 4 iterations in 154 ms. Result :sat
Minimization took 35 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[17, 22, 19] Max Struct:[+inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[17, 22, 19] Max Struct:[+inf, +inf, +inf]
Support contains 3 out of 44 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 44/44 places, 152/152 transitions.
Applied a total of 0 rules in 8 ms. Remains 44 /44 variables (removed 0) and now considering 152/152 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 8 ms. Remains : 44/44 places, 152/152 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 44/44 places, 152/152 transitions.
Applied a total of 0 rules in 7 ms. Remains 44 /44 variables (removed 0) and now considering 152/152 (removed 0) transitions.
[2026-05-23 17:40:25] [INFO ] Flow matrix only has 108 transitions (discarded 44 similar events)
[2026-05-23 17:40:25] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-23 17:40:25] [INFO ] Implicit Places using invariants in 94 ms returned []
[2026-05-23 17:40:25] [INFO ] Flow matrix only has 108 transitions (discarded 44 similar events)
[2026-05-23 17:40:25] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-23 17:40:25] [INFO ] State equation strengthened by 17 read => feed constraints.
[2026-05-23 17:40:25] [INFO ] Implicit Places using invariants and state equation in 166 ms returned []
Implicit Place search using SMT with State Equation took 263 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-23 17:40:25] [INFO ] Redundant transitions in 6 ms returned []
Running 150 sub problems to find dead transitions.
[2026-05-23 17:40:25] [INFO ] Flow matrix only has 108 transitions (discarded 44 similar events)
[2026-05-23 17:40:25] [INFO ] Invariant cache hit.
[2026-05-23 17:40:25] [INFO ] State equation strengthened by 17 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/44 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 150 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/44 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 150 unsolved
At refinement iteration 2 (OVERLAPS) 108/152 variables, 44/47 constraints. Problems are: Problem set: 0 solved, 150 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/152 variables, 17/64 constraints. Problems are: Problem set: 0 solved, 150 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/152 variables, 0/64 constraints. Problems are: Problem set: 0 solved, 150 unsolved
At refinement iteration 5 (OVERLAPS) 0/152 variables, 0/64 constraints. Problems are: Problem set: 0 solved, 150 unsolved
No progress, stopping.
After SMT solving in domain Real declared 152/152 variables, and 64 constraints, problems are : Problem set: 0 solved, 150 unsolved in 3401 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 44/44 constraints, ReadFeed: 17/17 constraints, PredecessorRefiner: 150/150 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 150 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/44 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 150 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/44 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 150 unsolved
At refinement iteration 2 (OVERLAPS) 108/152 variables, 44/47 constraints. Problems are: Problem set: 0 solved, 150 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/152 variables, 17/64 constraints. Problems are: Problem set: 0 solved, 150 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/152 variables, 150/214 constraints. Problems are: Problem set: 0 solved, 150 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/152 variables, 0/214 constraints. Problems are: Problem set: 0 solved, 150 unsolved
At refinement iteration 6 (OVERLAPS) 0/152 variables, 0/214 constraints. Problems are: Problem set: 0 solved, 150 unsolved
No progress, stopping.
After SMT solving in domain Int declared 152/152 variables, and 214 constraints, problems are : Problem set: 0 solved, 150 unsolved in 8284 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 44/44 constraints, ReadFeed: 17/17 constraints, PredecessorRefiner: 150/150 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 11852ms problems are : Problem set: 0 solved, 150 unsolved
Search for dead transitions found 0 dead transitions in 11871ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 12177 ms. Remains : 44/44 places, 152/152 transitions.
[2026-05-23 17:40:37] [INFO ] Flow matrix only has 108 transitions (discarded 44 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {5=2, 6=2, 11=1, 18=1, 24=2, 35=2, 51=2, 65=1, 66=1, 70=2, 72=2, 73=2, 94=2, 104=2}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {11=1, 18=1, 62=1, 63=1, 102=2}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 28 ms. (steps per millisecond=357 ) properties (out of 3) seen :[4, 7, 5]
Current structural bounds on expressions (after cover walk) : Max Seen:[17, 22, 19] Max Struct:[+inf, +inf, +inf]
[2026-05-23 17:40:37] [INFO ] Flow matrix only has 108 transitions (discarded 44 similar events)
[2026-05-23 17:40:37] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[17, 22, 19] Max Struct:[+inf, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 1632 ms. (612 steps per ms)
BEST_FIRST walk for 3000003 steps (6 resets) in 1725 ms. (1738 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[21, 22, 19] Max Struct:[+inf, +inf, +inf]
[2026-05-23 17:40:41] [INFO ] Flow matrix only has 108 transitions (discarded 44 similar events)
[2026-05-23 17:40:41] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-23 17:40:41] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2026-05-23 17:40:41] [INFO ] [Real]Absence check using state equation in 41 ms returned sat
[2026-05-23 17:40:41] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-23 17:40:41] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2026-05-23 17:40:41] [INFO ] [Nat]Absence check using state equation in 42 ms returned sat
[2026-05-23 17:40:41] [INFO ] State equation strengthened by 17 read => feed constraints.
[2026-05-23 17:40:41] [INFO ] [Nat]Added 17 Read/Feed constraints in 10 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 17:40:41] [INFO ] Deduced a trap composed of 10 places in 70 ms of which 6 ms to minimize.
[2026-05-23 17:40:41] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 82 ms
[2026-05-23 17:40:41] [INFO ] Computed and/alt/rep : 49/276/48 causal constraints (skipped 58 transitions) in 15 ms.
[2026-05-23 17:40:41] [INFO ] Added : 13 causal constraints over 3 iterations in 82 ms. Result :sat
Minimization took 45 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-23 17:40:41] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2026-05-23 17:40:41] [INFO ] [Real]Absence check using state equation in 40 ms returned sat
[2026-05-23 17:40:41] [INFO ] [Real]Added 17 Read/Feed constraints in 7 ms returned sat
[2026-05-23 17:40:41] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-23 17:40:41] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2026-05-23 17:40:41] [INFO ] [Nat]Absence check using state equation in 37 ms returned sat
[2026-05-23 17:40:41] [INFO ] [Nat]Added 17 Read/Feed constraints in 7 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 17:40:41] [INFO ] Deduced a trap composed of 10 places in 83 ms of which 8 ms to minimize.
[2026-05-23 17:40:41] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 94 ms
[2026-05-23 17:40:41] [INFO ] Computed and/alt/rep : 49/276/48 causal constraints (skipped 58 transitions) in 14 ms.
[2026-05-23 17:40:41] [INFO ] Added : 13 causal constraints over 4 iterations in 68 ms. Result :sat
Minimization took 33 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-23 17:40:41] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2026-05-23 17:40:41] [INFO ] [Real]Absence check using state equation in 40 ms returned sat
[2026-05-23 17:40:41] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-23 17:40:42] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2026-05-23 17:40:42] [INFO ] [Nat]Absence check using state equation in 38 ms returned sat
[2026-05-23 17:40:42] [INFO ] [Nat]Added 17 Read/Feed constraints in 7 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 17:40:42] [INFO ] Deduced a trap composed of 10 places in 65 ms of which 4 ms to minimize.
[2026-05-23 17:40:42] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 76 ms
[2026-05-23 17:40:42] [INFO ] Computed and/alt/rep : 49/276/48 causal constraints (skipped 58 transitions) in 10 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 17:40:42] [INFO ] Deduced a trap composed of 11 places in 61 ms of which 3 ms to minimize.
[2026-05-23 17:40:42] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 76 ms
[2026-05-23 17:40:42] [INFO ] Added : 12 causal constraints over 4 iterations in 143 ms. Result :sat
Minimization took 30 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[21, 22, 19] Max Struct:[+inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[21, 22, 19] Max Struct:[+inf, +inf, +inf]
Support contains 3 out of 44 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 44/44 places, 152/152 transitions.
Applied a total of 0 rules in 8 ms. Remains 44 /44 variables (removed 0) and now considering 152/152 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 8 ms. Remains : 44/44 places, 152/152 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 44/44 places, 152/152 transitions.
Applied a total of 0 rules in 7 ms. Remains 44 /44 variables (removed 0) and now considering 152/152 (removed 0) transitions.
[2026-05-23 17:40:42] [INFO ] Flow matrix only has 108 transitions (discarded 44 similar events)
[2026-05-23 17:40:42] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-23 17:40:42] [INFO ] Implicit Places using invariants in 99 ms returned []
[2026-05-23 17:40:42] [INFO ] Flow matrix only has 108 transitions (discarded 44 similar events)
[2026-05-23 17:40:42] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-23 17:40:42] [INFO ] State equation strengthened by 17 read => feed constraints.
[2026-05-23 17:40:42] [INFO ] Implicit Places using invariants and state equation in 147 ms returned []
Implicit Place search using SMT with State Equation took 248 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-23 17:40:42] [INFO ] Redundant transitions in 6 ms returned []
Running 150 sub problems to find dead transitions.
[2026-05-23 17:40:42] [INFO ] Flow matrix only has 108 transitions (discarded 44 similar events)
[2026-05-23 17:40:42] [INFO ] Invariant cache hit.
[2026-05-23 17:40:42] [INFO ] State equation strengthened by 17 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/44 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 150 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/44 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 150 unsolved
At refinement iteration 2 (OVERLAPS) 108/152 variables, 44/47 constraints. Problems are: Problem set: 0 solved, 150 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/152 variables, 17/64 constraints. Problems are: Problem set: 0 solved, 150 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/152 variables, 0/64 constraints. Problems are: Problem set: 0 solved, 150 unsolved
At refinement iteration 5 (OVERLAPS) 0/152 variables, 0/64 constraints. Problems are: Problem set: 0 solved, 150 unsolved
No progress, stopping.
After SMT solving in domain Real declared 152/152 variables, and 64 constraints, problems are : Problem set: 0 solved, 150 unsolved in 2578 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 44/44 constraints, ReadFeed: 17/17 constraints, PredecessorRefiner: 150/150 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 150 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/44 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 150 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/44 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 150 unsolved
At refinement iteration 2 (OVERLAPS) 108/152 variables, 44/47 constraints. Problems are: Problem set: 0 solved, 150 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/152 variables, 17/64 constraints. Problems are: Problem set: 0 solved, 150 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/152 variables, 150/214 constraints. Problems are: Problem set: 0 solved, 150 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/152 variables, 0/214 constraints. Problems are: Problem set: 0 solved, 150 unsolved
At refinement iteration 6 (OVERLAPS) 0/152 variables, 0/214 constraints. Problems are: Problem set: 0 solved, 150 unsolved
No progress, stopping.
After SMT solving in domain Int declared 152/152 variables, and 214 constraints, problems are : Problem set: 0 solved, 150 unsolved in 8137 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 44/44 constraints, ReadFeed: 17/17 constraints, PredecessorRefiner: 150/150 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 10771ms problems are : Problem set: 0 solved, 150 unsolved
Search for dead transitions found 0 dead transitions in 10773ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 11043 ms. Remains : 44/44 places, 152/152 transitions.
[2026-05-23 17:40:53] [INFO ] Flow matrix only has 108 transitions (discarded 44 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {5=2, 6=2, 11=1, 18=1, 24=2, 35=2, 51=2, 65=1, 66=1, 70=2, 72=2, 73=2, 94=2, 104=2}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {11=1, 18=1, 62=1, 63=1, 102=2}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 31 ms. (steps per millisecond=322 ) properties (out of 3) seen :[6, 7, 6]
Current structural bounds on expressions (after cover walk) : Max Seen:[21, 22, 19] Max Struct:[+inf, +inf, +inf]
[2026-05-23 17:40:53] [INFO ] Flow matrix only has 108 transitions (discarded 44 similar events)
[2026-05-23 17:40:53] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[21, 22, 19] Max Struct:[+inf, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 1582 ms. (631 steps per ms)
BEST_FIRST walk for 3000003 steps (6 resets) in 1658 ms. (1808 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[21, 22, 19] Max Struct:[+inf, +inf, +inf]
[2026-05-23 17:40:56] [INFO ] Flow matrix only has 108 transitions (discarded 44 similar events)
[2026-05-23 17:40:56] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-23 17:40:56] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2026-05-23 17:40:56] [INFO ] [Real]Absence check using state equation in 55 ms returned sat
[2026-05-23 17:40:56] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-23 17:40:56] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2026-05-23 17:40:57] [INFO ] [Nat]Absence check using state equation in 40 ms returned sat
[2026-05-23 17:40:57] [INFO ] State equation strengthened by 17 read => feed constraints.
[2026-05-23 17:40:57] [INFO ] [Nat]Added 17 Read/Feed constraints in 9 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 17:40:57] [INFO ] Deduced a trap composed of 10 places in 76 ms of which 5 ms to minimize.
[2026-05-23 17:40:57] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 88 ms
[2026-05-23 17:40:57] [INFO ] Computed and/alt/rep : 49/276/48 causal constraints (skipped 58 transitions) in 12 ms.
[2026-05-23 17:40:57] [INFO ] Added : 13 causal constraints over 3 iterations in 63 ms. Result :sat
Minimization took 35 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-23 17:40:57] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2026-05-23 17:40:57] [INFO ] [Real]Absence check using state equation in 38 ms returned sat
[2026-05-23 17:40:57] [INFO ] [Real]Added 17 Read/Feed constraints in 6 ms returned sat
[2026-05-23 17:40:57] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-23 17:40:57] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2026-05-23 17:40:57] [INFO ] [Nat]Absence check using state equation in 38 ms returned sat
[2026-05-23 17:40:57] [INFO ] [Nat]Added 17 Read/Feed constraints in 9 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 17:40:57] [INFO ] Deduced a trap composed of 10 places in 76 ms of which 7 ms to minimize.
[2026-05-23 17:40:57] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 87 ms
[2026-05-23 17:40:57] [INFO ] Computed and/alt/rep : 49/276/48 causal constraints (skipped 58 transitions) in 13 ms.
[2026-05-23 17:40:57] [INFO ] Added : 13 causal constraints over 4 iterations in 66 ms. Result :sat
Minimization took 31 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-23 17:40:57] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2026-05-23 17:40:57] [INFO ] [Real]Absence check using state equation in 37 ms returned sat
[2026-05-23 17:40:57] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-23 17:40:57] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2026-05-23 17:40:57] [INFO ] [Nat]Absence check using state equation in 32 ms returned sat
[2026-05-23 17:40:57] [INFO ] [Nat]Added 17 Read/Feed constraints in 5 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 17:40:57] [INFO ] Deduced a trap composed of 10 places in 73 ms of which 4 ms to minimize.
[2026-05-23 17:40:57] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 83 ms
[2026-05-23 17:40:57] [INFO ] Computed and/alt/rep : 49/276/48 causal constraints (skipped 58 transitions) in 11 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 17:40:57] [INFO ] Deduced a trap composed of 11 places in 63 ms of which 4 ms to minimize.
[2026-05-23 17:40:57] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 76 ms
[2026-05-23 17:40:57] [INFO ] Added : 12 causal constraints over 4 iterations in 141 ms. Result :sat
Minimization took 29 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[21, 22, 19] Max Struct:[+inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[21, 22, 19] Max Struct:[+inf, +inf, +inf]
Support contains 3 out of 44 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 44/44 places, 152/152 transitions.
Applied a total of 0 rules in 9 ms. Remains 44 /44 variables (removed 0) and now considering 152/152 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 9 ms. Remains : 44/44 places, 152/152 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 44/44 places, 152/152 transitions.
Applied a total of 0 rules in 6 ms. Remains 44 /44 variables (removed 0) and now considering 152/152 (removed 0) transitions.
[2026-05-23 17:40:58] [INFO ] Flow matrix only has 108 transitions (discarded 44 similar events)
[2026-05-23 17:40:58] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-23 17:40:58] [INFO ] Implicit Places using invariants in 81 ms returned []
[2026-05-23 17:40:58] [INFO ] Flow matrix only has 108 transitions (discarded 44 similar events)
[2026-05-23 17:40:58] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-23 17:40:58] [INFO ] State equation strengthened by 17 read => feed constraints.
[2026-05-23 17:40:58] [INFO ] Implicit Places using invariants and state equation in 137 ms returned []
Implicit Place search using SMT with State Equation took 220 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-23 17:40:58] [INFO ] Redundant transitions in 6 ms returned []
Running 150 sub problems to find dead transitions.
[2026-05-23 17:40:58] [INFO ] Flow matrix only has 108 transitions (discarded 44 similar events)
[2026-05-23 17:40:58] [INFO ] Invariant cache hit.
[2026-05-23 17:40:58] [INFO ] State equation strengthened by 17 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/44 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 150 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/44 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 150 unsolved
At refinement iteration 2 (OVERLAPS) 108/152 variables, 44/47 constraints. Problems are: Problem set: 0 solved, 150 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/152 variables, 17/64 constraints. Problems are: Problem set: 0 solved, 150 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/152 variables, 0/64 constraints. Problems are: Problem set: 0 solved, 150 unsolved
At refinement iteration 5 (OVERLAPS) 0/152 variables, 0/64 constraints. Problems are: Problem set: 0 solved, 150 unsolved
No progress, stopping.
After SMT solving in domain Real declared 152/152 variables, and 64 constraints, problems are : Problem set: 0 solved, 150 unsolved in 2507 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 44/44 constraints, ReadFeed: 17/17 constraints, PredecessorRefiner: 150/150 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 150 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/44 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 150 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/44 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 150 unsolved
At refinement iteration 2 (OVERLAPS) 108/152 variables, 44/47 constraints. Problems are: Problem set: 0 solved, 150 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/152 variables, 17/64 constraints. Problems are: Problem set: 0 solved, 150 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/152 variables, 150/214 constraints. Problems are: Problem set: 0 solved, 150 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/152 variables, 0/214 constraints. Problems are: Problem set: 0 solved, 150 unsolved
At refinement iteration 6 (OVERLAPS) 0/152 variables, 0/214 constraints. Problems are: Problem set: 0 solved, 150 unsolved
No progress, stopping.
After SMT solving in domain Int declared 152/152 variables, and 214 constraints, problems are : Problem set: 0 solved, 150 unsolved in 8001 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 44/44 constraints, ReadFeed: 17/17 constraints, PredecessorRefiner: 150/150 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 10571ms problems are : Problem set: 0 solved, 150 unsolved
Search for dead transitions found 0 dead transitions in 10573ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 10814 ms. Remains : 44/44 places, 152/152 transitions.
[2026-05-23 17:41:08] [INFO ] Flow matrix only has 108 transitions (discarded 44 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {5=2, 6=2, 11=1, 18=1, 24=2, 35=2, 51=2, 65=1, 66=1, 70=2, 72=2, 73=2, 94=2, 104=2}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {11=1, 18=1, 62=1, 63=1, 102=2}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 29 ms. (steps per millisecond=344 ) properties (out of 3) seen :[5, 6, 6]
Current structural bounds on expressions (after cover walk) : Max Seen:[21, 22, 19] Max Struct:[+inf, +inf, +inf]
RANDOM walk for 40000 steps (8 resets) in 1180 ms. (33 steps per ms) remains 3/3 properties
[2026-05-23 17:41:09] [INFO ] Flatten gal took : 92 ms
BEST_FIRST walk for 40004 steps (8 resets) in 314 ms. (126 steps per ms) remains 3/3 properties
[2026-05-23 17:41:09] [INFO ] Flatten gal took : 40 ms
[2026-05-23 17:41:09] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality10673446649507394232.gal : 26 ms
BEST_FIRST walk for 40004 steps (8 resets) in 309 ms. (129 steps per ms) remains 3/3 properties
[2026-05-23 17:41:09] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality14279400988010683252.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/ReachabilityCardinality10673446649507394232.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality14279400988010683252.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
BEST_FIRST walk for 40003 steps (8 resets) in 268 ms. (148 steps per ms) remains 3/3 properties
Loading property file /tmp/ReachabilityCardinality14279400988010683252.prop.
SDD proceeding with computation,3 properties remain. new max is 4
SDD size :1 after 12
SDD proceeding with computation,3 properties remain. new max is 8
SDD size :12 after 83
SDD proceeding with computation,3 properties remain. new max is 16
SDD size :83 after 914
SDD proceeding with computation,3 properties remain. new max is 32
SDD size :914 after 15078
SDD proceeding with computation,3 properties remain. new max is 64
SDD size :15078 after 134969
Invariant property MIN1 does not hold.
SDD proceeding with computation,2 properties remain. new max is 64
SDD size :134969 after 452021
SDD proceeding with computation,2 properties remain. new max is 128
SDD size :452021 after 769870
SDD proceeding with computation,2 properties remain. new max is 256
SDD size :769870 after 1.40058e+06
SDD proceeding with computation,2 properties remain. new max is 512
SDD size :1.40058e+06 after 2.65721e+06
SDD proceeding with computation,2 properties remain. new max is 1024
SDD size :2.65721e+06 after 5.1655e+06
Interrupted probabilistic random walk after 381110 steps, run timeout after 3001 ms. (steps per millisecond=126 ) properties seen :0 out of 3
Probabilistic random walk after 381110 steps, saw 263214 distinct states, run finished after 3008 ms. (steps per millisecond=126 ) properties seen :0
[2026-05-23 17:41:12] [INFO ] Flow matrix only has 108 transitions (discarded 44 similar events)
[2026-05-23 17:41:12] [INFO ] Invariant cache hit.
[2026-05-23 17:41:12] [INFO ] State equation strengthened by 17 read => feed constraints.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 1 (OVERLAPS) 10/12 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/12 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 3 (OVERLAPS) 96/108 variables, 11/13 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/108 variables, 2/15 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/108 variables, 0/15 constraints. Problems are: Problem set: 0 solved, 2 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (OVERLAPS) 14/122 variables, 2/17 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/122 variables, 6/23 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/122 variables, 0/23 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 9 (OVERLAPS) 30/152 variables, 25/48 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/152 variables, 1/49 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/152 variables, 15/64 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/152 variables, 0/64 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 13 (OVERLAPS) 0/152 variables, 0/64 constraints. Problems are: Problem set: 0 solved, 2 unsolved
No progress, stopping.
After SMT solving in domain Real declared 152/152 variables, and 64 constraints, problems are : Problem set: 0 solved, 2 unsolved in 126 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 44/44 constraints, ReadFeed: 17/17 constraints, PredecessorRefiner: 2/2 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 2 unsolved
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 1 (OVERLAPS) 10/12 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/12 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 3 (OVERLAPS) 96/108 variables, 11/13 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/108 variables, 2/15 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/108 variables, 2/17 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/108 variables, 0/17 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 7 (OVERLAPS) 14/122 variables, 2/19 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/122 variables, 6/25 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/122 variables, 0/25 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 10 (OVERLAPS) 30/152 variables, 25/50 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/152 variables, 1/51 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/152 variables, 15/66 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/152 variables, 0/66 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 14 (OVERLAPS) 0/152 variables, 0/66 constraints. Problems are: Problem set: 0 solved, 2 unsolved
No progress, stopping.
After SMT solving in domain Int declared 152/152 variables, and 66 constraints, problems are : Problem set: 0 solved, 2 unsolved in 215 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 44/44 constraints, ReadFeed: 17/17 constraints, PredecessorRefiner: 2/2 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 348ms problems are : Problem set: 0 solved, 2 unsolved
Parikh walk visited 0 properties in 1087 ms.
Support contains 2 out of 44 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 44/44 places, 152/152 transitions.
Applied a total of 0 rules in 6 ms. Remains 44 /44 variables (removed 0) and now considering 152/152 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 6 ms. Remains : 44/44 places, 152/152 transitions.
RANDOM walk for 40003 steps (8 resets) in 246 ms. (161 steps per ms) remains 1/2 properties
BEST_FIRST walk for 40004 steps (8 resets) in 65 ms. (606 steps per ms) remains 1/1 properties
[2026-05-23 17:41:14] [INFO ] Flow matrix only has 108 transitions (discarded 44 similar events)
[2026-05-23 17:41:14] [INFO ] Invariant cache hit.
[2026-05-23 17:41:14] [INFO ] State equation strengthened by 17 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) 5/6 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 99/105 variables, 10/11 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/105 variables, 1/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/105 variables, 0/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (OVERLAPS) 15/120 variables, 2/14 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/120 variables, 5/19 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/120 variables, 0/19 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 32/152 variables, 28/47 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/152 variables, 1/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/152 variables, 16/64 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/152 variables, 0/64 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 0/152 variables, 0/64 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 152/152 variables, and 64 constraints, problems are : Problem set: 0 solved, 1 unsolved in 136 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 44/44 constraints, ReadFeed: 17/17 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) 5/6 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 99/105 variables, 10/11 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/105 variables, 1/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/105 variables, 1/13 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/105 variables, 0/13 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 15/120 variables, 2/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/120 variables, 5/20 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/120 variables, 0/20 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 32/152 variables, 28/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/152 variables, 1/49 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/152 variables, 16/65 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/152 variables, 0/65 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 0/152 variables, 0/65 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 152/152 variables, and 65 constraints, problems are : Problem set: 0 solved, 1 unsolved in 124 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 44/44 constraints, ReadFeed: 17/17 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 270ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 64 ms.
Support contains 1 out of 44 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 44/44 places, 152/152 transitions.
Applied a total of 0 rules in 12 ms. Remains 44 /44 variables (removed 0) and now considering 152/152 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 20 ms. Remains : 44/44 places, 152/152 transitions.
RANDOM walk for 40000 steps (8 resets) in 171 ms. (232 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (8 resets) in 72 ms. (548 steps per ms) remains 1/1 properties
SDD proceeding with computation,2 properties remain. new max is 2048
SDD size :5.1655e+06 after 1.01773e+07
Interrupted probabilistic random walk after 1657100 steps, run timeout after 3001 ms. (steps per millisecond=552 ) properties seen :0 out of 1
Probabilistic random walk after 1657100 steps, saw 1159303 distinct states, run finished after 3001 ms. (steps per millisecond=552 ) properties seen :0
[2026-05-23 17:41:17] [INFO ] Flow matrix only has 108 transitions (discarded 44 similar events)
[2026-05-23 17:41:17] [INFO ] Invariant cache hit.
[2026-05-23 17:41:17] [INFO ] State equation strengthened by 17 read => feed constraints.
Starting Z3 with timeout 75.0 s and query timeout 7500.0 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) 5/6 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 99/105 variables, 10/11 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/105 variables, 1/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/105 variables, 0/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (OVERLAPS) 15/120 variables, 2/14 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/120 variables, 5/19 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/120 variables, 0/19 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 32/152 variables, 28/47 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/152 variables, 1/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/152 variables, 16/64 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/152 variables, 0/64 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 0/152 variables, 0/64 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 152/152 variables, and 64 constraints, problems are : Problem set: 0 solved, 1 unsolved in 126 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 44/44 constraints, ReadFeed: 17/17 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 75.0 s and query timeout 7500.0 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) 5/6 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 99/105 variables, 10/11 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/105 variables, 1/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/105 variables, 1/13 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/105 variables, 0/13 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 15/120 variables, 2/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/120 variables, 5/20 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/120 variables, 0/20 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 32/152 variables, 28/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/152 variables, 1/49 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/152 variables, 16/65 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/152 variables, 0/65 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 0/152 variables, 0/65 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 152/152 variables, and 65 constraints, problems are : Problem set: 0 solved, 1 unsolved in 184 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 44/44 constraints, ReadFeed: 17/17 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 322ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 65 ms.
Support contains 1 out of 44 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 44/44 places, 152/152 transitions.
Applied a total of 0 rules in 9 ms. Remains 44 /44 variables (removed 0) and now considering 152/152 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 11 ms. Remains : 44/44 places, 152/152 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 44/44 places, 152/152 transitions.
Applied a total of 0 rules in 4 ms. Remains 44 /44 variables (removed 0) and now considering 152/152 (removed 0) transitions.
[2026-05-23 17:41:18] [INFO ] Flow matrix only has 108 transitions (discarded 44 similar events)
[2026-05-23 17:41:18] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-23 17:41:18] [INFO ] Implicit Places using invariants in 60 ms returned []
[2026-05-23 17:41:18] [INFO ] Flow matrix only has 108 transitions (discarded 44 similar events)
[2026-05-23 17:41:18] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-23 17:41:18] [INFO ] State equation strengthened by 17 read => feed constraints.
[2026-05-23 17:41:18] [INFO ] Implicit Places using invariants and state equation in 105 ms returned []
Implicit Place search using SMT with State Equation took 167 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-23 17:41:18] [INFO ] Redundant transitions in 2 ms returned []
Running 150 sub problems to find dead transitions.
[2026-05-23 17:41:18] [INFO ] Flow matrix only has 108 transitions (discarded 44 similar events)
[2026-05-23 17:41:18] [INFO ] Invariant cache hit.
[2026-05-23 17:41:18] [INFO ] State equation strengthened by 17 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/44 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 150 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/44 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 150 unsolved
At refinement iteration 2 (OVERLAPS) 108/152 variables, 44/47 constraints. Problems are: Problem set: 0 solved, 150 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/152 variables, 17/64 constraints. Problems are: Problem set: 0 solved, 150 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/152 variables, 0/64 constraints. Problems are: Problem set: 0 solved, 150 unsolved
At refinement iteration 5 (OVERLAPS) 0/152 variables, 0/64 constraints. Problems are: Problem set: 0 solved, 150 unsolved
No progress, stopping.
After SMT solving in domain Real declared 152/152 variables, and 64 constraints, problems are : Problem set: 0 solved, 150 unsolved in 2364 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 44/44 constraints, ReadFeed: 17/17 constraints, PredecessorRefiner: 150/150 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 150 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/44 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 150 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/44 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 150 unsolved
At refinement iteration 2 (OVERLAPS) 108/152 variables, 44/47 constraints. Problems are: Problem set: 0 solved, 150 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/152 variables, 17/64 constraints. Problems are: Problem set: 0 solved, 150 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/152 variables, 150/214 constraints. Problems are: Problem set: 0 solved, 150 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/152 variables, 0/214 constraints. Problems are: Problem set: 0 solved, 150 unsolved
At refinement iteration 6 (OVERLAPS) 0/152 variables, 0/214 constraints. Problems are: Problem set: 0 solved, 150 unsolved
No progress, stopping.
After SMT solving in domain Int declared 152/152 variables, and 214 constraints, problems are : Problem set: 0 solved, 150 unsolved in 7652 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 44/44 constraints, ReadFeed: 17/17 constraints, PredecessorRefiner: 150/150 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 10063ms problems are : Problem set: 0 solved, 150 unsolved
Search for dead transitions found 0 dead transitions in 10065ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 10247 ms. Remains : 44/44 places, 152/152 transitions.
Attempting over-approximation, by ignoring read arcs.
Ensure Unique test removed 44 transitions
Reduce isomorphic transitions removed 44 transitions.
Iterating post reduction 0 with 44 rules applied. Total rules applied 44 place count 44 transition count 108
Performed 10 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 1 with 10 Pre rules applied. Total rules applied 44 place count 44 transition count 98
Deduced a syphon composed of 10 places in 1 ms
Reduce places removed 10 places and 0 transitions.
Iterating global reduction 1 with 20 rules applied. Total rules applied 64 place count 34 transition count 98
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 1 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 1 with 2 rules applied. Total rules applied 66 place count 33 transition count 97
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 67 place count 32 transition count 93
Iterating global reduction 1 with 1 rules applied. Total rules applied 68 place count 32 transition count 93
Applied a total of 68 rules in 21 ms. Remains 32 /44 variables (removed 12) and now considering 93/152 (removed 59) transitions.
Running SMT prover for 1 properties.
// Phase 1: matrix 93 rows 32 cols
[2026-05-23 17:41:28] [INFO ] Computed 3 invariants in 3 ms
Starting Z3 with timeout 450.0 s and query timeout 45000.0 ms
[2026-05-23 17:41:28] [INFO ] [Real]Absence check using 3 positive place invariants in 1 ms returned sat
[2026-05-23 17:41:28] [INFO ] After 58ms 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
[2026-05-23 17:41:28] [INFO ] [Nat]Absence check using 3 positive place invariants in 1 ms returned sat
[2026-05-23 17:41:28] [INFO ] After 35ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
TRAPS : Iteration 0
[2026-05-23 17:41:28] [INFO ] After 45ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
[2026-05-23 17:41:28] [INFO ] After 79ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
[2026-05-23 17:41:28] [INFO ] Flatten gal took : 17 ms
[2026-05-23 17:41:28] [INFO ] Flatten gal took : 16 ms
[2026-05-23 17:41:28] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality3499831427272902872.gal : 5 ms
[2026-05-23 17:41:28] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality4804722118467595797.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/ReachabilityCardinality3499831427272902872.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality4804722118467595797.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/ReachabilityCardinality4804722118467595797.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 63
SDD proceeding with computation,1 properties remain. new max is 32
SDD size :63 after 1782
SDD proceeding with computation,1 properties remain. new max is 64
SDD size :1782 after 16830
SDD proceeding with computation,1 properties remain. new max is 128
SDD size :16830 after 47170
SDD proceeding with computation,1 properties remain. new max is 256
SDD size :47170 after 107525
SDD proceeding with computation,1 properties remain. new max is 512
SDD size :107525 after 227720
SDD proceeding with computation,1 properties remain. new max is 1024
SDD size :227720 after 467500
SDD proceeding with computation,1 properties remain. new max is 2048
SDD size :467500 after 946640
SDD proceeding with computation,2 properties remain. new max is 4096
SDD size :1.01773e+07 after 2.01958e+07
SDD proceeding with computation,1 properties remain. new max is 4096
SDD size :946640 after 1.9046e+06
Detected timeout of ITS tools.
[2026-05-23 17:41:43] [INFO ] Flatten gal took : 12 ms
[2026-05-23 17:41:43] [INFO ] Applying decomposition
[2026-05-23 17:41:43] [INFO ] Flatten gal took : 11 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/graph17481938273977207270.txt' '-o' '/tmp/graph17481938273977207270.bin' '-w' '/tmp/graph17481938273977207270.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/louvain-linux64' '/tmp/graph17481938273977207270.bin' '-l' '-1' '-v' '-w' '/tmp/graph17481938273977207270.weights' '-q' '0' '-e' '0.001'
[2026-05-23 17:41:43] [INFO ] Decomposing Gal with order
[2026-05-23 17:41:43] [INFO ] Rewriting arrays to variables to allow decomposition.
[2026-05-23 17:41:43] [INFO ] Removed a total of 171 redundant transitions.
[2026-05-23 17:41:43] [INFO ] Flatten gal took : 80 ms
[2026-05-23 17:41:43] [INFO ] Fuse similar labels procedure discarded/fused a total of 10 labels/synchronizations in 11 ms.
[2026-05-23 17:41:43] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality5770919659269549663.gal : 3 ms
[2026-05-23 17:41:43] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality17924900034211896938.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/ReachabilityCardinality5770919659269549663.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality17924900034211896938.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/ReachabilityCardinality17924900034211896938.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 63
SDD proceeding with computation,1 properties remain. new max is 32
SDD size :63 after 19664
SDD proceeding with computation,1 properties remain. new max is 64
SDD size :19664 after 472853
SDD proceeding with computation,1 properties remain. new max is 128
SDD size :472853 after 1.69889e+06
SDD proceeding with computation,1 properties remain. new max is 256
SDD size :1.69889e+06 after 3.3716e+06
SDD proceeding with computation,1 properties remain. new max is 512
SDD size :3.3716e+06 after 8.04376e+06
SDD proceeding with computation,1 properties remain. new max is 1024
SDD size :8.04376e+06 after 1.66376e+07
SDD proceeding with computation,1 properties remain. new max is 2048
SDD size :1.66376e+07 after 3.14425e+07
Detected timeout of ITS tools.
Over-approximation ignoring read arcs solved 0 properties in 30607 ms.
ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
[2026-05-23 17:41:59] [INFO ] Flatten gal took : 15 ms
[2026-05-23 17:41:59] [INFO ] Applying decomposition
[2026-05-23 17:41:59] [INFO ] Flatten gal took : 13 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/graph15097552587141286942.txt' '-o' '/tmp/graph15097552587141286942.bin' '-w' '/tmp/graph15097552587141286942.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/louvain-linux64' '/tmp/graph15097552587141286942.bin' '-l' '-1' '-v' '-w' '/tmp/graph15097552587141286942.weights' '-q' '0' '-e' '0.001'
[2026-05-23 17:41:59] [INFO ] Decomposing Gal with order
[2026-05-23 17:41:59] [INFO ] Rewriting arrays to variables to allow decomposition.
[2026-05-23 17:41:59] [INFO ] Removed a total of 296 redundant transitions.
[2026-05-23 17:41:59] [INFO ] Flatten gal took : 30 ms
[2026-05-23 17:41:59] [INFO ] Fuse similar labels procedure discarded/fused a total of 22 labels/synchronizations in 7 ms.
[2026-05-23 17:41:59] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality6825549552330596819.gal : 4 ms
[2026-05-23 17:41:59] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality9901847524285581927.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/ReachabilityCardinality6825549552330596819.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality9901847524285581927.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/ReachabilityCardinality9901847524285581927.prop.
Detected timeout of ITS tools.
Current structural bounds on expressions (After reachability solving 0 queries.) : Max Seen:[21, 22, 19] Max Struct:[+inf, +inf, +inf]
Starting property specific reduction for DoubleLock-PT-p1s1-UpperBounds-00
Current structural bounds on expressions (Initially) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (Adding known information on max bounds.) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (Before main loop) : Max Seen:[0] Max Struct:[+inf]
[2026-05-23 17:42:49] [INFO ] Flow matrix only has 108 transitions (discarded 44 similar events)
// Phase 1: matrix 108 rows 44 cols
[2026-05-23 17:42:49] [INFO ] Computed 3 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 22 ms. (434 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:[11] Max Struct:[+inf]
[2026-05-23 17:42:49] [INFO ] Flow matrix only has 108 transitions (discarded 44 similar events)
[2026-05-23 17:42:49] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 17:42:49] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2026-05-23 17:42:49] [INFO ] [Real]Absence check using state equation in 65 ms returned sat
[2026-05-23 17:42:49] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 17:42:49] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2026-05-23 17:42:49] [INFO ] [Nat]Absence check using state equation in 55 ms returned sat
[2026-05-23 17:42:49] [INFO ] State equation strengthened by 17 read => feed constraints.
[2026-05-23 17:42:49] [INFO ] [Nat]Added 17 Read/Feed constraints in 34 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 17:42:49] [INFO ] Deduced a trap composed of 10 places in 234 ms of which 4 ms to minimize.
[2026-05-23 17:42:49] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 252 ms
[2026-05-23 17:42:49] [INFO ] Computed and/alt/rep : 49/276/48 causal constraints (skipped 58 transitions) in 12 ms.
[2026-05-23 17:42:49] [INFO ] Added : 20 causal constraints over 5 iterations in 82 ms. Result :sat
Minimization took 32 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[11] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[11] Max Struct:[+inf]
Support contains 1 out of 44 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 44/44 places, 152/152 transitions.
Applied a total of 0 rules in 5 ms. Remains 44 /44 variables (removed 0) and now considering 152/152 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 10 ms. Remains : 44/44 places, 152/152 transitions.
[2026-05-23 17:42:50] [INFO ] Flow matrix only has 108 transitions (discarded 44 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {5=2, 6=2, 11=1, 18=1, 24=2, 35=2, 51=2, 65=1, 66=1, 70=2, 72=2, 73=2, 94=2, 104=2}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 3 ms.
This minimized invariant on transitions {11=1, 18=1, 62=1, 63=1, 102=2}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 34 ms. (steps per millisecond=294 ) properties (out of 1) seen :[5]
Current structural bounds on expressions (after cover walk) : Max Seen:[11] Max Struct:[+inf]
[2026-05-23 17:42:50] [INFO ] Flow matrix only has 108 transitions (discarded 44 similar events)
[2026-05-23 17:42:50] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[11] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 1463 ms. (683 steps per ms)
BEST_FIRST walk for 1000000 steps (2 resets) in 498 ms. (2004 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[15] Max Struct:[+inf]
[2026-05-23 17:42:52] [INFO ] Flow matrix only has 108 transitions (discarded 44 similar events)
[2026-05-23 17:42:52] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-23 17:42:52] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2026-05-23 17:42:52] [INFO ] [Real]Absence check using state equation in 65 ms returned sat
[2026-05-23 17:42:52] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-23 17:42:52] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2026-05-23 17:42:52] [INFO ] [Nat]Absence check using state equation in 64 ms returned sat
[2026-05-23 17:42:52] [INFO ] State equation strengthened by 17 read => feed constraints.
[2026-05-23 17:42:52] [INFO ] [Nat]Added 17 Read/Feed constraints in 13 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 17:42:52] [INFO ] Deduced a trap composed of 10 places in 64 ms of which 4 ms to minimize.
[2026-05-23 17:42:52] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 75 ms
[2026-05-23 17:42:52] [INFO ] Computed and/alt/rep : 49/276/48 causal constraints (skipped 58 transitions) in 11 ms.
[2026-05-23 17:42:52] [INFO ] Added : 13 causal constraints over 3 iterations in 58 ms. Result :sat
Minimization took 35 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[15] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[15] Max Struct:[+inf]
Support contains 1 out of 44 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 44/44 places, 152/152 transitions.
Applied a total of 0 rules in 6 ms. Remains 44 /44 variables (removed 0) and now considering 152/152 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 6 ms. Remains : 44/44 places, 152/152 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 44/44 places, 152/152 transitions.
Applied a total of 0 rules in 5 ms. Remains 44 /44 variables (removed 0) and now considering 152/152 (removed 0) transitions.
[2026-05-23 17:42:52] [INFO ] Flow matrix only has 108 transitions (discarded 44 similar events)
[2026-05-23 17:42:52] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-23 17:42:52] [INFO ] Implicit Places using invariants in 107 ms returned []
[2026-05-23 17:42:52] [INFO ] Flow matrix only has 108 transitions (discarded 44 similar events)
[2026-05-23 17:42:52] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-23 17:42:52] [INFO ] State equation strengthened by 17 read => feed constraints.
[2026-05-23 17:42:52] [INFO ] Implicit Places using invariants and state equation in 133 ms returned []
Implicit Place search using SMT with State Equation took 242 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-23 17:42:52] [INFO ] Redundant transitions in 1 ms returned []
Running 150 sub problems to find dead transitions.
[2026-05-23 17:42:52] [INFO ] Flow matrix only has 108 transitions (discarded 44 similar events)
[2026-05-23 17:42:52] [INFO ] Invariant cache hit.
[2026-05-23 17:42:52] [INFO ] State equation strengthened by 17 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/44 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 150 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/44 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 150 unsolved
At refinement iteration 2 (OVERLAPS) 108/152 variables, 44/47 constraints. Problems are: Problem set: 0 solved, 150 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/152 variables, 17/64 constraints. Problems are: Problem set: 0 solved, 150 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/152 variables, 0/64 constraints. Problems are: Problem set: 0 solved, 150 unsolved
At refinement iteration 5 (OVERLAPS) 0/152 variables, 0/64 constraints. Problems are: Problem set: 0 solved, 150 unsolved
No progress, stopping.
After SMT solving in domain Real declared 152/152 variables, and 64 constraints, problems are : Problem set: 0 solved, 150 unsolved in 2445 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 44/44 constraints, ReadFeed: 17/17 constraints, PredecessorRefiner: 150/150 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 150 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/44 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 150 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/44 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 150 unsolved
At refinement iteration 2 (OVERLAPS) 108/152 variables, 44/47 constraints. Problems are: Problem set: 0 solved, 150 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/152 variables, 17/64 constraints. Problems are: Problem set: 0 solved, 150 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/152 variables, 150/214 constraints. Problems are: Problem set: 0 solved, 150 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/152 variables, 0/214 constraints. Problems are: Problem set: 0 solved, 150 unsolved
At refinement iteration 6 (OVERLAPS) 0/152 variables, 0/214 constraints. Problems are: Problem set: 0 solved, 150 unsolved
No progress, stopping.
After SMT solving in domain Int declared 152/152 variables, and 214 constraints, problems are : Problem set: 0 solved, 150 unsolved in 7975 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 44/44 constraints, ReadFeed: 17/17 constraints, PredecessorRefiner: 150/150 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 10461ms problems are : Problem set: 0 solved, 150 unsolved
Search for dead transitions found 0 dead transitions in 10462ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 10718 ms. Remains : 44/44 places, 152/152 transitions.
[2026-05-23 17:43:03] [INFO ] Flow matrix only has 108 transitions (discarded 44 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {5=2, 6=2, 11=1, 18=1, 24=2, 35=2, 51=2, 65=1, 66=1, 70=2, 72=2, 73=2, 94=2, 104=2}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {11=1, 18=1, 62=1, 63=1, 102=2}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 27 ms. (steps per millisecond=370 ) properties (out of 1) seen :[2147483647]
Current structural bounds on expressions (after cover walk) : Max Seen:[+inf] Max Struct:[+inf]
[2026-05-23 17:43:03] [INFO ] Flow matrix only has 108 transitions (discarded 44 similar events)
[2026-05-23 17:43:03] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[+inf] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 1573 ms. (635 steps per ms)
FORMULA DoubleLock-PT-p1s1-UpperBounds-00 +inf TECHNIQUES TOPOLOGICAL RANDOM_WALK
BEST_FIRST walk for 0 steps (0 resets) in 0 ms. (0 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[] Max Struct:[]
RANDOM walk for 0 steps (0 resets) in 4 ms. (0 steps per ms) remains 0/0 properties
Finished probabilistic random walk after 0 steps, run visited all 0 properties in 0 ms. (steps per millisecond=0 )
[2026-05-23 17:43:05] [INFO ] Flatten gal took : 15 ms
[2026-05-23 17:43:05] [INFO ] Flatten gal took : 14 ms
[2026-05-23 17:43:05] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality4624260766811262316.gal : 3 ms
[2026-05-23 17:43:05] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality4967771834333916665.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/ReachabilityCardinality4624260766811262316.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality4967771834333916665.prop' '--nowitness' '--gen-order' 'FOLLOW'

ITS runner timed out or was interrupted.
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
ITS tools runner thread asked to quit. Dying gracefully.
Current structural bounds on expressions (After reachability solving 0 queries.) : Max Seen:[] Max Struct:[]
Ending property specific reduction for DoubleLock-PT-p1s1-UpperBounds-00 in 15797 ms.
Starting property specific reduction for DoubleLock-PT-p1s1-UpperBounds-05
Current structural bounds on expressions (Initially) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (Adding known information on max bounds.) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (Before main loop) : Max Seen:[0] Max Struct:[+inf]
[2026-05-23 17:43:05] [INFO ] Flow matrix only has 108 transitions (discarded 44 similar events)
[2026-05-23 17:43:05] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[+inf]
RANDOM walk for 10000 steps (2 resets) in 18 ms. (526 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:[14] Max Struct:[+inf]
[2026-05-23 17:43:05] [INFO ] Flow matrix only has 108 transitions (discarded 44 similar events)
[2026-05-23 17:43:05] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 17:43:05] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2026-05-23 17:43:05] [INFO ] [Real]Absence check using state equation in 37 ms returned sat
[2026-05-23 17:43:05] [INFO ] State equation strengthened by 17 read => feed constraints.
[2026-05-23 17:43:05] [INFO ] [Real]Added 17 Read/Feed constraints in 7 ms returned sat
[2026-05-23 17:43:05] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 17:43:05] [INFO ] [Nat]Absence check using 3 positive place invariants in 1 ms returned sat
[2026-05-23 17:43:05] [INFO ] [Nat]Absence check using state equation in 30 ms returned sat
[2026-05-23 17:43:05] [INFO ] [Nat]Added 17 Read/Feed constraints in 5 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 17:43:05] [INFO ] Deduced a trap composed of 10 places in 73 ms of which 8 ms to minimize.
[2026-05-23 17:43:05] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 84 ms
[2026-05-23 17:43:05] [INFO ] Computed and/alt/rep : 49/276/48 causal constraints (skipped 58 transitions) in 12 ms.
[2026-05-23 17:43:05] [INFO ] Added : 13 causal constraints over 4 iterations in 74 ms. Result :sat
Minimization took 49 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[14] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[14] Max Struct:[+inf]
Support contains 1 out of 44 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 44/44 places, 152/152 transitions.
Applied a total of 0 rules in 5 ms. Remains 44 /44 variables (removed 0) and now considering 152/152 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 6 ms. Remains : 44/44 places, 152/152 transitions.
[2026-05-23 17:43:05] [INFO ] Flow matrix only has 108 transitions (discarded 44 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {5=2, 6=2, 11=1, 18=1, 24=2, 35=2, 51=2, 65=1, 66=1, 70=2, 72=2, 73=2, 94=2, 104=2}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {11=1, 18=1, 62=1, 63=1, 102=2}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 20 ms. (steps per millisecond=500 ) properties (out of 1) seen :[6]
Current structural bounds on expressions (after cover walk) : Max Seen:[14] Max Struct:[+inf]
[2026-05-23 17:43:05] [INFO ] Flow matrix only has 108 transitions (discarded 44 similar events)
[2026-05-23 17:43:05] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[14] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 1608 ms. (621 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 565 ms. (1766 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[17] Max Struct:[+inf]
[2026-05-23 17:43:07] [INFO ] Flow matrix only has 108 transitions (discarded 44 similar events)
[2026-05-23 17:43:07] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-23 17:43:07] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2026-05-23 17:43:07] [INFO ] [Real]Absence check using state equation in 39 ms returned sat
[2026-05-23 17:43:07] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-23 17:43:07] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2026-05-23 17:43:07] [INFO ] [Nat]Absence check using state equation in 43 ms returned sat
[2026-05-23 17:43:07] [INFO ] State equation strengthened by 17 read => feed constraints.
[2026-05-23 17:43:07] [INFO ] [Nat]Added 17 Read/Feed constraints in 8 ms returned sat
[2026-05-23 17:43:08] [INFO ] Computed and/alt/rep : 49/276/48 causal constraints (skipped 58 transitions) in 12 ms.
[2026-05-23 17:43:08] [INFO ] Added : 12 causal constraints over 4 iterations in 67 ms. Result :sat
Minimization took 34 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[17] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[17] Max Struct:[+inf]
Support contains 1 out of 44 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 44/44 places, 152/152 transitions.
Applied a total of 0 rules in 4 ms. Remains 44 /44 variables (removed 0) and now considering 152/152 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 5 ms. Remains : 44/44 places, 152/152 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 44/44 places, 152/152 transitions.
Applied a total of 0 rules in 3 ms. Remains 44 /44 variables (removed 0) and now considering 152/152 (removed 0) transitions.
[2026-05-23 17:43:08] [INFO ] Flow matrix only has 108 transitions (discarded 44 similar events)
[2026-05-23 17:43:08] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-23 17:43:08] [INFO ] Implicit Places using invariants in 92 ms returned []
[2026-05-23 17:43:08] [INFO ] Flow matrix only has 108 transitions (discarded 44 similar events)
[2026-05-23 17:43:08] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-23 17:43:08] [INFO ] State equation strengthened by 17 read => feed constraints.
[2026-05-23 17:43:08] [INFO ] Implicit Places using invariants and state equation in 145 ms returned []
Implicit Place search using SMT with State Equation took 239 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-23 17:43:08] [INFO ] Redundant transitions in 1 ms returned []
Running 150 sub problems to find dead transitions.
[2026-05-23 17:43:08] [INFO ] Flow matrix only has 108 transitions (discarded 44 similar events)
[2026-05-23 17:43:08] [INFO ] Invariant cache hit.
[2026-05-23 17:43:08] [INFO ] State equation strengthened by 17 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/44 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 150 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/44 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 150 unsolved
At refinement iteration 2 (OVERLAPS) 108/152 variables, 44/47 constraints. Problems are: Problem set: 0 solved, 150 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/152 variables, 17/64 constraints. Problems are: Problem set: 0 solved, 150 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/152 variables, 0/64 constraints. Problems are: Problem set: 0 solved, 150 unsolved
At refinement iteration 5 (OVERLAPS) 0/152 variables, 0/64 constraints. Problems are: Problem set: 0 solved, 150 unsolved
No progress, stopping.
After SMT solving in domain Real declared 152/152 variables, and 64 constraints, problems are : Problem set: 0 solved, 150 unsolved in 2583 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 44/44 constraints, ReadFeed: 17/17 constraints, PredecessorRefiner: 150/150 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 150 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/44 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 150 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/44 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 150 unsolved
At refinement iteration 2 (OVERLAPS) 108/152 variables, 44/47 constraints. Problems are: Problem set: 0 solved, 150 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/152 variables, 17/64 constraints. Problems are: Problem set: 0 solved, 150 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/152 variables, 150/214 constraints. Problems are: Problem set: 0 solved, 150 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/152 variables, 0/214 constraints. Problems are: Problem set: 0 solved, 150 unsolved
At refinement iteration 6 (OVERLAPS) 0/152 variables, 0/214 constraints. Problems are: Problem set: 0 solved, 150 unsolved
No progress, stopping.
After SMT solving in domain Int declared 152/152 variables, and 214 constraints, problems are : Problem set: 0 solved, 150 unsolved in 7563 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 44/44 constraints, ReadFeed: 17/17 constraints, PredecessorRefiner: 150/150 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 10184ms problems are : Problem set: 0 solved, 150 unsolved
Search for dead transitions found 0 dead transitions in 10184ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 10434 ms. Remains : 44/44 places, 152/152 transitions.
[2026-05-23 17:43:18] [INFO ] Flow matrix only has 108 transitions (discarded 44 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {5=2, 6=2, 11=1, 18=1, 24=2, 35=2, 51=2, 65=1, 66=1, 70=2, 72=2, 73=2, 94=2, 104=2}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {11=1, 18=1, 62=1, 63=1, 102=2}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 20 ms. (steps per millisecond=500 ) properties (out of 1) seen :[6]
Current structural bounds on expressions (after cover walk) : Max Seen:[17] Max Struct:[+inf]
[2026-05-23 17:43:18] [INFO ] Flow matrix only has 108 transitions (discarded 44 similar events)
[2026-05-23 17:43:18] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[17] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 1623 ms. (615 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 566 ms. (1763 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[17] Max Struct:[+inf]
[2026-05-23 17:43:20] [INFO ] Flow matrix only has 108 transitions (discarded 44 similar events)
[2026-05-23 17:43:20] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-23 17:43:20] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2026-05-23 17:43:20] [INFO ] [Real]Absence check using state equation in 37 ms returned sat
[2026-05-23 17:43:20] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-23 17:43:20] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2026-05-23 17:43:21] [INFO ] [Nat]Absence check using state equation in 40 ms returned sat
[2026-05-23 17:43:21] [INFO ] State equation strengthened by 17 read => feed constraints.
[2026-05-23 17:43:21] [INFO ] [Nat]Added 17 Read/Feed constraints in 6 ms returned sat
[2026-05-23 17:43:21] [INFO ] Computed and/alt/rep : 49/276/48 causal constraints (skipped 58 transitions) in 11 ms.
[2026-05-23 17:43:21] [INFO ] Added : 12 causal constraints over 4 iterations in 61 ms. Result :sat
Minimization took 34 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[17] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[17] Max Struct:[+inf]
Support contains 1 out of 44 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 44/44 places, 152/152 transitions.
Applied a total of 0 rules in 4 ms. Remains 44 /44 variables (removed 0) and now considering 152/152 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 4 ms. Remains : 44/44 places, 152/152 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 44/44 places, 152/152 transitions.
Applied a total of 0 rules in 4 ms. Remains 44 /44 variables (removed 0) and now considering 152/152 (removed 0) transitions.
[2026-05-23 17:43:21] [INFO ] Flow matrix only has 108 transitions (discarded 44 similar events)
[2026-05-23 17:43:21] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-23 17:43:21] [INFO ] Implicit Places using invariants in 68 ms returned []
[2026-05-23 17:43:21] [INFO ] Flow matrix only has 108 transitions (discarded 44 similar events)
[2026-05-23 17:43:21] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-23 17:43:21] [INFO ] State equation strengthened by 17 read => feed constraints.
[2026-05-23 17:43:21] [INFO ] Implicit Places using invariants and state equation in 137 ms returned []
Implicit Place search using SMT with State Equation took 207 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-23 17:43:21] [INFO ] Redundant transitions in 0 ms returned []
Running 150 sub problems to find dead transitions.
[2026-05-23 17:43:21] [INFO ] Flow matrix only has 108 transitions (discarded 44 similar events)
[2026-05-23 17:43:21] [INFO ] Invariant cache hit.
[2026-05-23 17:43:21] [INFO ] State equation strengthened by 17 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/44 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 150 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/44 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 150 unsolved
At refinement iteration 2 (OVERLAPS) 108/152 variables, 44/47 constraints. Problems are: Problem set: 0 solved, 150 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/152 variables, 17/64 constraints. Problems are: Problem set: 0 solved, 150 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/152 variables, 0/64 constraints. Problems are: Problem set: 0 solved, 150 unsolved
At refinement iteration 5 (OVERLAPS) 0/152 variables, 0/64 constraints. Problems are: Problem set: 0 solved, 150 unsolved
No progress, stopping.
After SMT solving in domain Real declared 152/152 variables, and 64 constraints, problems are : Problem set: 0 solved, 150 unsolved in 2611 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 44/44 constraints, ReadFeed: 17/17 constraints, PredecessorRefiner: 150/150 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 150 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/44 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 150 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/44 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 150 unsolved
At refinement iteration 2 (OVERLAPS) 108/152 variables, 44/47 constraints. Problems are: Problem set: 0 solved, 150 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/152 variables, 17/64 constraints. Problems are: Problem set: 0 solved, 150 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/152 variables, 150/214 constraints. Problems are: Problem set: 0 solved, 150 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/152 variables, 0/214 constraints. Problems are: Problem set: 0 solved, 150 unsolved
At refinement iteration 6 (OVERLAPS) 0/152 variables, 0/214 constraints. Problems are: Problem set: 0 solved, 150 unsolved
No progress, stopping.
After SMT solving in domain Int declared 152/152 variables, and 214 constraints, problems are : Problem set: 0 solved, 150 unsolved in 8254 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 44/44 constraints, ReadFeed: 17/17 constraints, PredecessorRefiner: 150/150 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 10913ms problems are : Problem set: 0 solved, 150 unsolved
Search for dead transitions found 0 dead transitions in 10913ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 11133 ms. Remains : 44/44 places, 152/152 transitions.
[2026-05-23 17:43:32] [INFO ] Flow matrix only has 108 transitions (discarded 44 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {5=2, 6=2, 11=1, 18=1, 24=2, 35=2, 51=2, 65=1, 66=1, 70=2, 72=2, 73=2, 94=2, 104=2}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {11=1, 18=1, 62=1, 63=1, 102=2}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 22 ms. (steps per millisecond=454 ) properties (out of 1) seen :[6]
Current structural bounds on expressions (after cover walk) : Max Seen:[17] Max Struct:[+inf]
[2026-05-23 17:43:32] [INFO ] Flatten gal took : 23 ms
RANDOM walk for 40000 steps (8 resets) in 141 ms. (281 steps per ms) remains 1/1 properties
[2026-05-23 17:43:32] [INFO ] Flatten gal took : 12 ms
[2026-05-23 17:43:32] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality9559387933253100012.gal : 2 ms
[2026-05-23 17:43:32] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality2148402807783643229.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/ReachabilityCardinality9559387933253100012.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality2148402807783643229.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
BEST_FIRST walk for 24875 steps (5 resets) in 36 ms. (672 steps per ms) remains 0/1 properties
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:[17] Max Struct:[+inf]
Ending property specific reduction for DoubleLock-PT-p1s1-UpperBounds-05 in 27394 ms.
Starting property specific reduction for DoubleLock-PT-p1s1-UpperBounds-10
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]
[2026-05-23 17:43:32] [INFO ] Flow matrix only has 108 transitions (discarded 44 similar events)
[2026-05-23 17:43:32] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[+inf]
RANDOM walk for 10000 steps (2 resets) in 18 ms. (526 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:[17] Max Struct:[+inf]
[2026-05-23 17:43:32] [INFO ] Flow matrix only has 108 transitions (discarded 44 similar events)
[2026-05-23 17:43:32] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 17:43:32] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2026-05-23 17:43:32] [INFO ] [Real]Absence check using state equation in 44 ms returned sat
[2026-05-23 17:43:32] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 17:43:32] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2026-05-23 17:43:32] [INFO ] [Nat]Absence check using state equation in 37 ms returned sat
[2026-05-23 17:43:32] [INFO ] State equation strengthened by 17 read => feed constraints.
[2026-05-23 17:43:32] [INFO ] [Nat]Added 17 Read/Feed constraints in 8 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 17:43:32] [INFO ] Deduced a trap composed of 10 places in 75 ms of which 4 ms to minimize.
[2026-05-23 17:43:32] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 88 ms
[2026-05-23 17:43:32] [INFO ] Computed and/alt/rep : 49/276/48 causal constraints (skipped 58 transitions) in 11 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 17:43:32] [INFO ] Deduced a trap composed of 11 places in 67 ms of which 5 ms to minimize.
[2026-05-23 17:43:32] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 84 ms
[2026-05-23 17:43:32] [INFO ] Added : 12 causal constraints over 4 iterations in 153 ms. Result :sat
Minimization took 31 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[17] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[17] Max Struct:[+inf]
Support contains 1 out of 44 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 44/44 places, 152/152 transitions.
Applied a total of 0 rules in 3 ms. Remains 44 /44 variables (removed 0) and now considering 152/152 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 4 ms. Remains : 44/44 places, 152/152 transitions.
[2026-05-23 17:43:32] [INFO ] Flow matrix only has 108 transitions (discarded 44 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {5=2, 6=2, 11=1, 18=1, 24=2, 35=2, 51=2, 65=1, 66=1, 70=2, 72=2, 73=2, 94=2, 104=2}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {11=1, 18=1, 62=1, 63=1, 102=2}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 21 ms. (steps per millisecond=476 ) properties (out of 1) seen :[6]
Current structural bounds on expressions (after cover walk) : Max Seen:[17] Max Struct:[+inf]
[2026-05-23 17:43:33] [INFO ] Flow matrix only has 108 transitions (discarded 44 similar events)
[2026-05-23 17:43:33] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[17] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 1619 ms. (617 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 626 ms. (1594 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[17] Max Struct:[+inf]
[2026-05-23 17:43:35] [INFO ] Flow matrix only has 108 transitions (discarded 44 similar events)
[2026-05-23 17:43:35] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-23 17:43:35] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2026-05-23 17:43:35] [INFO ] [Real]Absence check using state equation in 43 ms returned sat
[2026-05-23 17:43:35] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-23 17:43:35] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2026-05-23 17:43:35] [INFO ] [Nat]Absence check using state equation in 38 ms returned sat
[2026-05-23 17:43:35] [INFO ] State equation strengthened by 17 read => feed constraints.
[2026-05-23 17:43:35] [INFO ] [Nat]Added 17 Read/Feed constraints in 7 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 17:43:35] [INFO ] Deduced a trap composed of 10 places in 72 ms of which 4 ms to minimize.
[2026-05-23 17:43:35] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 83 ms
[2026-05-23 17:43:35] [INFO ] Computed and/alt/rep : 49/276/48 causal constraints (skipped 58 transitions) in 10 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 17:43:35] [INFO ] Deduced a trap composed of 11 places in 67 ms of which 3 ms to minimize.
[2026-05-23 17:43:35] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 84 ms
[2026-05-23 17:43:35] [INFO ] Added : 12 causal constraints over 4 iterations in 153 ms. Result :sat
Minimization took 34 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[17] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[17] Max Struct:[+inf]
Support contains 1 out of 44 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 44/44 places, 152/152 transitions.
Applied a total of 0 rules in 4 ms. Remains 44 /44 variables (removed 0) and now considering 152/152 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 5 ms. Remains : 44/44 places, 152/152 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 44/44 places, 152/152 transitions.
Applied a total of 0 rules in 3 ms. Remains 44 /44 variables (removed 0) and now considering 152/152 (removed 0) transitions.
[2026-05-23 17:43:35] [INFO ] Flow matrix only has 108 transitions (discarded 44 similar events)
[2026-05-23 17:43:35] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-23 17:43:35] [INFO ] Implicit Places using invariants in 73 ms returned []
[2026-05-23 17:43:35] [INFO ] Flow matrix only has 108 transitions (discarded 44 similar events)
[2026-05-23 17:43:35] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-23 17:43:35] [INFO ] State equation strengthened by 17 read => feed constraints.
[2026-05-23 17:43:36] [INFO ] Implicit Places using invariants and state equation in 161 ms returned []
Implicit Place search using SMT with State Equation took 235 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-23 17:43:36] [INFO ] Redundant transitions in 0 ms returned []
Running 150 sub problems to find dead transitions.
[2026-05-23 17:43:36] [INFO ] Flow matrix only has 108 transitions (discarded 44 similar events)
[2026-05-23 17:43:36] [INFO ] Invariant cache hit.
[2026-05-23 17:43:36] [INFO ] State equation strengthened by 17 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/44 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 150 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/44 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 150 unsolved
At refinement iteration 2 (OVERLAPS) 108/152 variables, 44/47 constraints. Problems are: Problem set: 0 solved, 150 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/152 variables, 17/64 constraints. Problems are: Problem set: 0 solved, 150 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/152 variables, 0/64 constraints. Problems are: Problem set: 0 solved, 150 unsolved
At refinement iteration 5 (OVERLAPS) 0/152 variables, 0/64 constraints. Problems are: Problem set: 0 solved, 150 unsolved
No progress, stopping.
After SMT solving in domain Real declared 152/152 variables, and 64 constraints, problems are : Problem set: 0 solved, 150 unsolved in 2679 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 44/44 constraints, ReadFeed: 17/17 constraints, PredecessorRefiner: 150/150 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 150 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/44 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 150 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/44 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 150 unsolved
At refinement iteration 2 (OVERLAPS) 108/152 variables, 44/47 constraints. Problems are: Problem set: 0 solved, 150 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/152 variables, 17/64 constraints. Problems are: Problem set: 0 solved, 150 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/152 variables, 150/214 constraints. Problems are: Problem set: 0 solved, 150 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/152 variables, 0/214 constraints. Problems are: Problem set: 0 solved, 150 unsolved
At refinement iteration 6 (OVERLAPS) 0/152 variables, 0/214 constraints. Problems are: Problem set: 0 solved, 150 unsolved
No progress, stopping.
After SMT solving in domain Int declared 152/152 variables, and 214 constraints, problems are : Problem set: 0 solved, 150 unsolved in 7974 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 44/44 constraints, ReadFeed: 17/17 constraints, PredecessorRefiner: 150/150 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 10716ms problems are : Problem set: 0 solved, 150 unsolved
Search for dead transitions found 0 dead transitions in 10717ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 10965 ms. Remains : 44/44 places, 152/152 transitions.
[2026-05-23 17:43:46] [INFO ] Flow matrix only has 108 transitions (discarded 44 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {5=2, 6=2, 11=1, 18=1, 24=2, 35=2, 51=2, 65=1, 66=1, 70=2, 72=2, 73=2, 94=2, 104=2}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {11=1, 18=1, 62=1, 63=1, 102=2}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 22 ms. (steps per millisecond=454 ) properties (out of 1) seen :[5]
Current structural bounds on expressions (after cover walk) : Max Seen:[17] Max Struct:[+inf]
[2026-05-23 17:43:46] [INFO ] Flatten gal took : 12 ms
[2026-05-23 17:43:46] [INFO ] Flatten gal took : 12 ms
[2026-05-23 17:43:46] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality12778144856747431778.gal : 3 ms
[2026-05-23 17:43:46] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality18285035596643670997.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/ReachabilityCardinality12778144856747431778.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality18285035596643670997.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/ReachabilityCardinality18285035596643670997.prop.
RANDOM walk for 40000 steps (8 resets) in 187 ms. (212 steps per ms) remains 1/1 properties
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 83
BEST_FIRST walk for 40004 steps (8 resets) in 61 ms. (645 steps per ms) remains 1/1 properties
SDD proceeding with computation,1 properties remain. new max is 16
SDD size :83 after 914
SDD proceeding with computation,1 properties remain. new max is 32
SDD size :914 after 15078
SDD proceeding with computation,1 properties remain. new max is 64
SDD size :15078 after 134969
SDD proceeding with computation,1 properties remain. new max is 128
SDD size :134969 after 452021
SDD proceeding with computation,1 properties remain. new max is 256
SDD size :452021 after 1.0828e+06
SDD proceeding with computation,1 properties remain. new max is 512
SDD size :1.0828e+06 after 2.33937e+06
SDD proceeding with computation,1 properties remain. new max is 1024
SDD size :2.33937e+06 after 4.84771e+06
Interrupted probabilistic random walk after 1679481 steps, run timeout after 3001 ms. (steps per millisecond=559 ) properties seen :0 out of 1
Probabilistic random walk after 1679481 steps, saw 1175899 distinct states, run finished after 3001 ms. (steps per millisecond=559 ) properties seen :0
[2026-05-23 17:43:49] [INFO ] Flow matrix only has 108 transitions (discarded 44 similar events)
[2026-05-23 17:43:50] [INFO ] Invariant cache hit.
[2026-05-23 17:43:50] [INFO ] State equation strengthened by 17 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, 1 unsolved
At refinement iteration 1 (OVERLAPS) 5/6 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 99/105 variables, 10/11 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/105 variables, 1/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/105 variables, 0/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 15/120 variables, 2/14 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/120 variables, 5/19 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/120 variables, 0/19 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 32/152 variables, 28/47 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/152 variables, 1/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/152 variables, 16/64 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 12 (INCLUDED_ONLY) 0/152 variables, 0/64 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 0/152 variables, 0/64 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 152/152 variables, and 64 constraints, problems are : Problem set: 0 solved, 1 unsolved in 221 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 44/44 constraints, ReadFeed: 17/17 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 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, 1 unsolved
At refinement iteration 1 (OVERLAPS) 5/6 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 99/105 variables, 10/11 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/105 variables, 1/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/105 variables, 1/13 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/105 variables, 0/13 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 15/120 variables, 2/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/120 variables, 5/20 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/120 variables, 0/20 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 32/152 variables, 28/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/152 variables, 1/49 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/152 variables, 16/65 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/152 variables, 0/65 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 0/152 variables, 0/65 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 152/152 variables, and 65 constraints, problems are : Problem set: 0 solved, 1 unsolved in 170 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 44/44 constraints, ReadFeed: 17/17 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 398ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 11 ms.
Support contains 1 out of 44 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 44/44 places, 152/152 transitions.
Applied a total of 0 rules in 3 ms. Remains 44 /44 variables (removed 0) and now considering 152/152 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 8 ms. Remains : 44/44 places, 152/152 transitions.
RANDOM walk for 40000 steps (8 resets) in 238 ms. (167 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (8 resets) in 31 ms. (1250 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1784046 steps, run timeout after 3001 ms. (steps per millisecond=594 ) properties seen :0 out of 1
Probabilistic random walk after 1784046 steps, saw 1252194 distinct states, run finished after 3005 ms. (steps per millisecond=593 ) properties seen :0
[2026-05-23 17:43:53] [INFO ] Flow matrix only has 108 transitions (discarded 44 similar events)
[2026-05-23 17:43:53] [INFO ] Invariant cache hit.
[2026-05-23 17:43:53] [INFO ] State equation strengthened by 17 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) 5/6 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 99/105 variables, 10/11 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/105 variables, 1/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/105 variables, 0/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 15/120 variables, 2/14 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/120 variables, 5/19 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/120 variables, 0/19 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 32/152 variables, 28/47 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/152 variables, 1/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/152 variables, 16/64 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 12 (INCLUDED_ONLY) 0/152 variables, 0/64 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 0/152 variables, 0/64 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 152/152 variables, and 64 constraints, problems are : Problem set: 0 solved, 1 unsolved in 110 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 44/44 constraints, ReadFeed: 17/17 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
SDD proceeding with computation,1 properties remain. new max is 2048
SDD size :4.84771e+06 after 9.85942e+06
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) 5/6 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 99/105 variables, 10/11 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/105 variables, 1/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/105 variables, 1/13 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/105 variables, 0/13 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 15/120 variables, 2/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/120 variables, 5/20 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/120 variables, 0/20 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 32/152 variables, 28/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/152 variables, 1/49 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/152 variables, 16/65 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/152 variables, 0/65 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 0/152 variables, 0/65 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 152/152 variables, and 65 constraints, problems are : Problem set: 0 solved, 1 unsolved in 116 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 44/44 constraints, ReadFeed: 17/17 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 235ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 13 ms.
Support contains 1 out of 44 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 44/44 places, 152/152 transitions.
Applied a total of 0 rules in 9 ms. Remains 44 /44 variables (removed 0) and now considering 152/152 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 9 ms. Remains : 44/44 places, 152/152 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 44/44 places, 152/152 transitions.
Applied a total of 0 rules in 2 ms. Remains 44 /44 variables (removed 0) and now considering 152/152 (removed 0) transitions.
[2026-05-23 17:43:53] [INFO ] Flow matrix only has 108 transitions (discarded 44 similar events)
[2026-05-23 17:43:53] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-23 17:43:53] [INFO ] Implicit Places using invariants in 89 ms returned []
[2026-05-23 17:43:53] [INFO ] Flow matrix only has 108 transitions (discarded 44 similar events)
[2026-05-23 17:43:53] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-23 17:43:53] [INFO ] State equation strengthened by 17 read => feed constraints.
[2026-05-23 17:43:53] [INFO ] Implicit Places using invariants and state equation in 134 ms returned []
Implicit Place search using SMT with State Equation took 225 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-23 17:43:53] [INFO ] Redundant transitions in 0 ms returned []
Running 150 sub problems to find dead transitions.
[2026-05-23 17:43:53] [INFO ] Flow matrix only has 108 transitions (discarded 44 similar events)
[2026-05-23 17:43:53] [INFO ] Invariant cache hit.
[2026-05-23 17:43:53] [INFO ] State equation strengthened by 17 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/44 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 150 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/44 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 150 unsolved
At refinement iteration 2 (OVERLAPS) 108/152 variables, 44/47 constraints. Problems are: Problem set: 0 solved, 150 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/152 variables, 17/64 constraints. Problems are: Problem set: 0 solved, 150 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/152 variables, 0/64 constraints. Problems are: Problem set: 0 solved, 150 unsolved
At refinement iteration 5 (OVERLAPS) 0/152 variables, 0/64 constraints. Problems are: Problem set: 0 solved, 150 unsolved
No progress, stopping.
After SMT solving in domain Real declared 152/152 variables, and 64 constraints, problems are : Problem set: 0 solved, 150 unsolved in 2358 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 44/44 constraints, ReadFeed: 17/17 constraints, PredecessorRefiner: 150/150 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 150 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/44 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 150 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/44 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 150 unsolved
At refinement iteration 2 (OVERLAPS) 108/152 variables, 44/47 constraints. Problems are: Problem set: 0 solved, 150 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/152 variables, 17/64 constraints. Problems are: Problem set: 0 solved, 150 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/152 variables, 150/214 constraints. Problems are: Problem set: 0 solved, 150 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/152 variables, 0/214 constraints. Problems are: Problem set: 0 solved, 150 unsolved
At refinement iteration 6 (OVERLAPS) 0/152 variables, 0/214 constraints. Problems are: Problem set: 0 solved, 150 unsolved
No progress, stopping.
After SMT solving in domain Int declared 152/152 variables, and 214 constraints, problems are : Problem set: 0 solved, 150 unsolved in 7865 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 44/44 constraints, ReadFeed: 17/17 constraints, PredecessorRefiner: 150/150 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 10254ms problems are : Problem set: 0 solved, 150 unsolved
Search for dead transitions found 0 dead transitions in 10255ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 10493 ms. Remains : 44/44 places, 152/152 transitions.
Attempting over-approximation, by ignoring read arcs.
Ensure Unique test removed 44 transitions
Reduce isomorphic transitions removed 44 transitions.
Iterating post reduction 0 with 44 rules applied. Total rules applied 44 place count 44 transition count 108
Performed 9 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 1 with 9 Pre rules applied. Total rules applied 44 place count 44 transition count 99
Deduced a syphon composed of 9 places in 0 ms
Reduce places removed 9 places and 0 transitions.
Iterating global reduction 1 with 18 rules applied. Total rules applied 62 place count 35 transition count 99
Performed 2 Post agglomeration using F-continuation condition.Transition count delta: 2
Deduced a syphon composed of 2 places in 0 ms
Reduce places removed 2 places and 0 transitions.
Iterating global reduction 1 with 4 rules applied. Total rules applied 66 place count 33 transition count 97
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 67 place count 32 transition count 93
Iterating global reduction 1 with 1 rules applied. Total rules applied 68 place count 32 transition count 93
Applied a total of 68 rules in 8 ms. Remains 32 /44 variables (removed 12) and now considering 93/152 (removed 59) transitions.
Running SMT prover for 1 properties.
// Phase 1: matrix 93 rows 32 cols
[2026-05-23 17:44:04] [INFO ] Computed 3 invariants in 2 ms
Starting Z3 with timeout 450.0 s and query timeout 45000.0 ms
[2026-05-23 17:44:04] [INFO ] [Real]Absence check using 3 positive place invariants in 1 ms returned sat
[2026-05-23 17:44:04] [INFO ] After 63ms 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
[2026-05-23 17:44:04] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2026-05-23 17:44:04] [INFO ] After 36ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
TRAPS : Iteration 0
[2026-05-23 17:44:04] [INFO ] After 44ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
[2026-05-23 17:44:04] [INFO ] After 82ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
[2026-05-23 17:44:04] [INFO ] Flatten gal took : 8 ms
[2026-05-23 17:44:04] [INFO ] Flatten gal took : 7 ms
[2026-05-23 17:44:04] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality13064466657071838385.gal : 1 ms
[2026-05-23 17:44:04] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality15531490175307417457.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/ReachabilityCardinality13064466657071838385.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality15531490175307417457.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/ReachabilityCardinality15531490175307417457.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 63
SDD proceeding with computation,1 properties remain. new max is 32
SDD size :63 after 1738
SDD proceeding with computation,1 properties remain. new max is 64
SDD size :1738 after 86973
Invariant property MIN0 does not hold.
Found states matching all0 target predicate
Will report total states built up to this point. Computation was interrupted after 65 fixpoint passes
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
petri\_inst\_inst,584243,0.070798,5224,2,239,11,5138,6,0,223,5037,0
Total reachable state count : 584243

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

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
MIN0,7900,0.071364,5224,2,75,11,5138,7,0,226,5037,0
Over-approximation ignoring read arcs solved 0 properties in 257 ms.
ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
[2026-05-23 17:44:04] [INFO ] Flatten gal took : 10 ms
[2026-05-23 17:44:04] [INFO ] Applying decomposition
[2026-05-23 17:44:04] [INFO ] Flatten gal took : 13 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/graph17472651975064233070.txt' '-o' '/tmp/graph17472651975064233070.bin' '-w' '/tmp/graph17472651975064233070.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/louvain-linux64' '/tmp/graph17472651975064233070.bin' '-l' '-1' '-v' '-w' '/tmp/graph17472651975064233070.weights' '-q' '0' '-e' '0.001'
[2026-05-23 17:44:04] [INFO ] Decomposing Gal with order
[2026-05-23 17:44:04] [INFO ] Rewriting arrays to variables to allow decomposition.
[2026-05-23 17:44:04] [INFO ] Removed a total of 296 redundant transitions.
[2026-05-23 17:44:04] [INFO ] Flatten gal took : 22 ms
[2026-05-23 17:44:04] [INFO ] Fuse similar labels procedure discarded/fused a total of 24 labels/synchronizations in 6 ms.
[2026-05-23 17:44:04] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality2535849432756644078.gal : 3 ms
[2026-05-23 17:44:04] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality7717238304516519046.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/ReachabilityCardinality2535849432756644078.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality7717238304516519046.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/ReachabilityCardinality7717238304516519046.prop.
Detected timeout of ITS tools.
Current structural bounds on expressions (After reachability solving 0 queries.) : Max Seen:[17] Max Struct:[+inf]
Ending property specific reduction for DoubleLock-PT-p1s1-UpperBounds-10 in 82201 ms.
[2026-05-23 17:44:54] [INFO ] Flatten gal took : 11 ms
[2026-05-23 17:44:54] [INFO ] Applying decomposition
[2026-05-23 17:44:54] [INFO ] Flatten gal took : 10 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/graph12821379676582534783.txt' '-o' '/tmp/graph12821379676582534783.bin' '-w' '/tmp/graph12821379676582534783.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/louvain-linux64' '/tmp/graph12821379676582534783.bin' '-l' '-1' '-v' '-w' '/tmp/graph12821379676582534783.weights' '-q' '0' '-e' '0.001'
[2026-05-23 17:44:54] [INFO ] Decomposing Gal with order
[2026-05-23 17:44:54] [INFO ] Rewriting arrays to variables to allow decomposition.
[2026-05-23 17:44:54] [INFO ] Removed a total of 296 redundant transitions.
[2026-05-23 17:44:54] [INFO ] Flatten gal took : 20 ms
[2026-05-23 17:44:54] [INFO ] Fuse similar labels procedure discarded/fused a total of 22 labels/synchronizations in 6 ms.
[2026-05-23 17:44:54] [INFO ] Time to serialize gal into /tmp/UpperBounds1830083978113160175.gal : 2 ms
[2026-05-23 17:44:54] [INFO ] Time to serialize properties into /tmp/UpperBounds815968156981282995.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/UpperBounds1830083978113160175.gal' '-t' 'CGAL' '-reachable-file' '/tmp/UpperBounds815968156981282995.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 ...282
Loading property file /tmp/UpperBounds815968156981282995.prop.
Detected timeout of ITS tools.
[2026-05-23 18:06:29] [INFO ] Flatten gal took : 9 ms
[2026-05-23 18:06:29] [INFO ] Time to serialize gal into /tmp/UpperBounds10972760194091360528.gal : 3 ms
[2026-05-23 18:06:29] [INFO ] Time to serialize properties into /tmp/UpperBounds9423944924291453100.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/UpperBounds10972760194091360528.gal' '-t' 'CGAL' '-reachable-file' '/tmp/UpperBounds9423944924291453100.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 ...305
Loading property file /tmp/UpperBounds9423944924291453100.prop.
Detected timeout of ITS tools.
[2026-05-23 18:28:05] [INFO ] Flatten gal took : 504 ms
[2026-05-23 18:28:07] [INFO ] Input system was already deterministic with 152 transitions.
[2026-05-23 18:28:07] [INFO ] Transformed 44 places.
[2026-05-23 18:28:07] [INFO ] Transformed 152 transitions.
Running greatSPN : cd /home/mcc/execution;'/home/mcc/BenchKit/bin//../itstools/bin//..//greatspn//bin/pinvar' '/home/mcc/execution/gspn'
Run of greatSPN captured in /home/mcc/execution/outPut.txt
Running greatSPN : cd /home/mcc/execution;'/home/mcc/BenchKit/bin//../itstools/bin//..//greatspn//bin/RGMEDD2' '/home/mcc/execution/gspn' '-META' '-varord-only'
Run of greatSPN captured in /home/mcc/execution/outPut.txt
Using order generated by GreatSPN with heuristic : META
[2026-05-23 18:28:08] [INFO ] Time to serialize gal into /tmp/UpperBounds10503914263021518310.gal : 51 ms
[2026-05-23 18:28:08] [INFO ] Time to serialize properties into /tmp/UpperBounds9285910883820314058.prop : 12 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/UpperBounds10503914263021518310.gal' '-t' 'CGAL' '-reachable-file' '/tmp/UpperBounds9285910883820314058.prop' '--nowitness' '--load-order' '/home/mcc/execution/model.ord' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...350
Successfully loaded order from file /home/mcc/execution/model.ord
Loading property file /tmp/UpperBounds9285910883820314058.prop.

BK_TIME_CONFINEMENT_REACHED

--------------------
content from stderr:

+ export BINDIR=/home/mcc/BenchKit/bin//../itstools/bin//../
+ BINDIR=/home/mcc/BenchKit/bin//../itstools/bin//../
++ pwd
+ export MODEL=/home/mcc/execution
+ MODEL=/home/mcc/execution
+ [[ UpperBounds = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution UpperBounds -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600
+ ulimit -s 65536
+ [[ -z '' ]]
+ export LTSMIN_MEM_SIZE=8589934592
+ LTSMIN_MEM_SIZE=8589934592
++ sed s/.jar//
++ perl -pe 's/.*\.//g'
++ ls /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202505121319.jar
+ VERSION=202505121319
+ echo 'Running Version 202505121319'
+ /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/its-tools -pnfolder /home/mcc/execution -examination UpperBounds -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600

Sequence of Actions to be Executed by the VM

This is useful if one wants to reexecute the tool in the VM from the submitted image disk.

set -x
# this is for BenchKit: configuration of major elements for the test
export BK_INPUT="DoubleLock-PT-p1s1"
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 DoubleLock-PT-p1s1, 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 r127-smll-177955743800001"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/DoubleLock-PT-p1s1.tgz
mv DoubleLock-PT-p1s1 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 ;