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.r095-smll-177946996300048.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 DES-PT-20a, examination is UpperBounds
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r095-smll-177946996300048
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 556K
-rw-r--r-- 1 mcc users 7.0K Mar 6 18:26 CTLCardinality.txt
-rw-r--r-- 1 mcc users 76K Mar 6 18:26 CTLCardinality.xml
-rw-r--r-- 1 mcc users 6.0K Mar 6 18:26 CTLFireability.txt
-rw-r--r-- 1 mcc users 58K Mar 6 18:26 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Mar 3 18:30 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 3.7K Mar 15 08:57 LTLCardinality.txt
-rw-r--r-- 1 mcc users 26K Mar 15 08:57 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.1K Mar 15 08:57 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K Mar 15 08:57 LTLFireability.xml
-rw-r--r-- 1 mcc users 16K Mar 6 18:26 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 177K Mar 6 18:26 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 6.7K Mar 6 18:26 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 54K Mar 6 18:26 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.5K Mar 15 08:57 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.5K Mar 15 08:57 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 equiv_col
-rw-r--r-- 1 mcc users 4 Mar 3 18:30 instance
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 iscolored
-rw-r--r-- 1 mcc users 57K 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 DES-PT-20a-UpperBounds-00
FORMULA_NAME DES-PT-20a-UpperBounds-01
FORMULA_NAME DES-PT-20a-UpperBounds-02
FORMULA_NAME DES-PT-20a-UpperBounds-03
FORMULA_NAME DES-PT-20a-UpperBounds-04
FORMULA_NAME DES-PT-20a-UpperBounds-05
FORMULA_NAME DES-PT-20a-UpperBounds-06
FORMULA_NAME DES-PT-20a-UpperBounds-07
FORMULA_NAME DES-PT-20a-UpperBounds-08
FORMULA_NAME DES-PT-20a-UpperBounds-09
FORMULA_NAME DES-PT-20a-UpperBounds-10
FORMULA_NAME DES-PT-20a-UpperBounds-11
FORMULA_NAME DES-PT-20a-UpperBounds-12
FORMULA_NAME DES-PT-20a-UpperBounds-13
FORMULA_NAME DES-PT-20a-UpperBounds-14
FORMULA_NAME DES-PT-20a-UpperBounds-15

=== Now, execution of the tool begins

BK_START 1779527356928

Invoking MCC driver with
GOLD_TOOL=
BK_EXAMINATION=UpperBounds
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=DES-PT-20a
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
UpperBounds PT
Running Version 202505121319
[2026-05-23 09:09:19] [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 09:09:19] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-23 09:09:19] [INFO ] Load time of PNML (sax parser for PT used): 128 ms
[2026-05-23 09:09:19] [INFO ] Transformed 195 places.
[2026-05-23 09:09:19] [INFO ] Transformed 152 transitions.
[2026-05-23 09:09:19] [INFO ] Found NUPN structural information;
[2026-05-23 09:09:19] [INFO ] Parsed PT model containing 195 places and 152 transitions and 742 arcs in 341 ms.
Parsed 16 properties from file /home/mcc/execution/UpperBounds.xml in 10 ms.
Ensure Unique test removed 14 transitions
Reduce redundant transitions removed 14 transitions.
Current structural bounds on expressions (Initiallly, because the net is safe) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
Current structural bounds on expressions (Before main loop) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
// Phase 1: matrix 138 rows 195 cols
[2026-05-23 09:09:20] [INFO ] Computed 59 invariants in 34 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
RANDOM walk for 10000 steps (215 resets) in 71 ms. (138 steps per ms)
FORMULA DES-PT-20a-UpperBounds-14 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA DES-PT-20a-UpperBounds-13 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA DES-PT-20a-UpperBounds-12 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA DES-PT-20a-UpperBounds-11 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA DES-PT-20a-UpperBounds-09 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA DES-PT-20a-UpperBounds-07 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA DES-PT-20a-UpperBounds-06 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA DES-PT-20a-UpperBounds-04 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA DES-PT-20a-UpperBounds-03 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA DES-PT-20a-UpperBounds-01 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA DES-PT-20a-UpperBounds-00 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 50005 steps (228 resets) in 114 ms. (434 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0, 0, 0, 0, 0] Max Struct:[1, 1, 1, 1, 1]
[2026-05-23 09:09:20] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 09:09:20] [INFO ] [Real]Absence check using 34 positive place invariants in 32 ms returned sat
[2026-05-23 09:09:20] [INFO ] [Real]Absence check using 34 positive and 25 generalized place invariants in 36 ms returned sat
[2026-05-23 09:09:20] [INFO ] [Real]Absence check using state equation in 234 ms returned sat
[2026-05-23 09:09:21] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 09:09:21] [INFO ] [Nat]Absence check using 34 positive place invariants in 30 ms returned sat
[2026-05-23 09:09:21] [INFO ] [Nat]Absence check using 34 positive and 25 generalized place invariants in 27 ms returned sat
[2026-05-23 09:09:21] [INFO ] [Nat]Absence check using state equation in 417 ms returned sat
[2026-05-23 09:09:21] [INFO ] State equation strengthened by 1 read => feed constraints.
[2026-05-23 09:09:21] [INFO ] [Nat]Added 1 Read/Feed constraints in 32 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 09:09:22] [INFO ] Deduced a trap composed of 9 places in 302 ms of which 170 ms to minimize.
[2026-05-23 09:09:22] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 365 ms
[2026-05-23 09:09:22] [INFO ] Computed and/alt/rep : 130/393/130 causal constraints (skipped 7 transitions) in 32 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 09:09:23] [INFO ] Deduced a trap composed of 12 places in 131 ms of which 12 ms to minimize.
[2026-05-23 09:09:23] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 178 ms
[2026-05-23 09:09:23] [INFO ] Added : 115 causal constraints over 23 iterations in 1107 ms. Result :sat
Minimization took 150 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 09:09:23] [INFO ] [Real]Absence check using 34 positive place invariants in 24 ms returned sat
[2026-05-23 09:09:23] [INFO ] [Real]Absence check using 34 positive and 25 generalized place invariants in 22 ms returned sat
[2026-05-23 09:09:23] [INFO ] [Real]Absence check using state equation in 170 ms returned sat
[2026-05-23 09:09:23] [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 09:09:23] [INFO ] [Nat]Absence check using 34 positive place invariants in 31 ms returned sat
[2026-05-23 09:09:23] [INFO ] [Nat]Absence check using 34 positive and 25 generalized place invariants in 23 ms returned sat
[2026-05-23 09:09:24] [INFO ] [Nat]Absence check using state equation in 214 ms returned sat
[2026-05-23 09:09:24] [INFO ] [Nat]Added 1 Read/Feed constraints in 26 ms returned sat
[2026-05-23 09:09:24] [INFO ] Computed and/alt/rep : 130/393/130 causal constraints (skipped 7 transitions) in 24 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 09:09:25] [INFO ] Deduced a trap composed of 9 places in 107 ms of which 7 ms to minimize.
[2026-05-23 09:09:25] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 156 ms
[2026-05-23 09:09:25] [INFO ] Added : 103 causal constraints over 21 iterations in 1128 ms. Result :sat
Minimization took 174 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 09:09:25] [INFO ] [Real]Absence check using 34 positive place invariants in 20 ms returned sat
[2026-05-23 09:09:25] [INFO ] [Real]Absence check using 34 positive and 25 generalized place invariants in 23 ms returned sat
[2026-05-23 09:09:25] [INFO ] [Real]Absence check using state equation in 163 ms returned sat
[2026-05-23 09:09:25] [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 09:09:25] [INFO ] [Nat]Absence check using 34 positive place invariants in 23 ms returned sat
[2026-05-23 09:09:26] [INFO ] [Nat]Absence check using 34 positive and 25 generalized place invariants in 61 ms returned sat
[2026-05-23 09:09:26] [INFO ] [Nat]Absence check using state equation in 199 ms returned sat
[2026-05-23 09:09:26] [INFO ] [Nat]Added 1 Read/Feed constraints in 16 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 09:09:26] [INFO ] Deduced a trap composed of 17 places in 96 ms of which 12 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 09:09:26] [INFO ] Deduced a trap composed of 18 places in 100 ms of which 9 ms to minimize.
[2026-05-23 09:09:26] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 249 ms
[2026-05-23 09:09:26] [INFO ] Computed and/alt/rep : 130/393/130 causal constraints (skipped 7 transitions) in 26 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 09:09:27] [INFO ] Deduced a trap composed of 12 places in 93 ms of which 11 ms to minimize.
[2026-05-23 09:09:27] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 142 ms
[2026-05-23 09:09:27] [INFO ] Added : 77 causal constraints over 16 iterations in 819 ms. Result :sat
Minimization took 147 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 09:09:27] [INFO ] [Real]Absence check using 34 positive place invariants in 21 ms returned sat
[2026-05-23 09:09:27] [INFO ] [Real]Absence check using 34 positive and 25 generalized place invariants in 24 ms returned sat
[2026-05-23 09:09:27] [INFO ] [Real]Absence check using state equation in 163 ms returned sat
[2026-05-23 09:09:27] [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 09:09:27] [INFO ] [Nat]Absence check using 34 positive place invariants in 20 ms returned sat
[2026-05-23 09:09:27] [INFO ] [Nat]Absence check using 34 positive and 25 generalized place invariants in 23 ms returned sat
[2026-05-23 09:09:28] [INFO ] [Nat]Absence check using state equation in 144 ms returned sat
[2026-05-23 09:09:28] [INFO ] [Nat]Added 1 Read/Feed constraints in 27 ms returned sat
[2026-05-23 09:09:28] [INFO ] Computed and/alt/rep : 130/393/130 causal constraints (skipped 7 transitions) in 27 ms.
[2026-05-23 09:09:28] [INFO ] Added : 104 causal constraints over 21 iterations in 812 ms. Result :sat
Minimization took 141 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 09:09:29] [INFO ] [Real]Absence check using 34 positive place invariants in 20 ms returned sat
[2026-05-23 09:09:29] [INFO ] [Real]Absence check using 34 positive and 25 generalized place invariants in 24 ms returned sat
[2026-05-23 09:09:29] [INFO ] [Real]Absence check using state equation in 154 ms returned sat
[2026-05-23 09:09:29] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 09:09:29] [INFO ] [Nat]Absence check using 34 positive place invariants in 22 ms returned sat
[2026-05-23 09:09:29] [INFO ] [Nat]Absence check using 34 positive and 25 generalized place invariants in 23 ms returned sat
[2026-05-23 09:09:29] [INFO ] [Nat]Absence check using state equation in 179 ms returned sat
[2026-05-23 09:09:29] [INFO ] [Nat]Added 1 Read/Feed constraints in 35 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 09:09:29] [INFO ] Deduced a trap composed of 17 places in 68 ms of which 6 ms to minimize.
[2026-05-23 09:09:29] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 95 ms
[2026-05-23 09:09:29] [INFO ] Computed and/alt/rep : 130/393/130 causal constraints (skipped 7 transitions) in 15 ms.
[2026-05-23 09:09:30] [INFO ] Added : 78 causal constraints over 16 iterations in 375 ms. Result :sat
Minimization took 87 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0, 0, 0, 0, 0] Max Struct:[1, 1, 1, 1, 1]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0, 0, 0, 0, 0] Max Struct:[1, 1, 1, 1, 1]
Support contains 5 out of 195 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 195/195 places, 138/138 transitions.
Drop transitions (Empty/Sink Transition effects.) removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 0 with 2 rules applied. Total rules applied 2 place count 195 transition count 136
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 3 place count 194 transition count 135
Iterating global reduction 1 with 1 rules applied. Total rules applied 4 place count 194 transition count 135
Partial Free-agglomeration rule applied 6 times.
Drop transitions (Partial Free agglomeration) removed 6 transitions
Iterating global reduction 1 with 6 rules applied. Total rules applied 10 place count 194 transition count 135
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 1 with 1 rules applied. Total rules applied 11 place count 193 transition count 134
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 1 with 1 rules applied. Total rules applied 12 place count 192 transition count 134
Applied a total of 12 rules in 112 ms. Remains 192 /195 variables (removed 3) and now considering 134/138 (removed 4) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 124 ms. Remains : 192/195 places, 134/138 transitions.
// Phase 1: matrix 134 rows 192 cols
[2026-05-23 09:09:31] [INFO ] Computed 60 invariants in 12 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0, 0, 0, 0, 0] Max Struct:[1, 1, 1, 1, 1]
RANDOM walk for 1000000 steps (13600 resets) in 2434 ms. (410 steps per ms)
BEST_FIRST walk for 5000004 steps (11312 resets) in 5158 ms. (969 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0, 0, 0, 0, 0] Max Struct:[1, 1, 1, 1, 1]
[2026-05-23 09:09:39] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-23 09:09:39] [INFO ] [Real]Absence check using 35 positive place invariants in 11 ms returned sat
[2026-05-23 09:09:39] [INFO ] [Real]Absence check using 35 positive and 25 generalized place invariants in 15 ms returned sat
[2026-05-23 09:09:39] [INFO ] [Real]Absence check using state equation in 98 ms returned sat
[2026-05-23 09:09:39] [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 09:09:39] [INFO ] [Nat]Absence check using 35 positive place invariants in 13 ms returned sat
[2026-05-23 09:09:39] [INFO ] [Nat]Absence check using 35 positive and 25 generalized place invariants in 12 ms returned sat
[2026-05-23 09:09:39] [INFO ] [Nat]Absence check using state equation in 99 ms returned sat
[2026-05-23 09:09:39] [INFO ] State equation strengthened by 2 read => feed constraints.
[2026-05-23 09:09:39] [INFO ] [Nat]Added 2 Read/Feed constraints in 2 ms returned sat
[2026-05-23 09:09:39] [INFO ] Computed and/alt/rep : 125/233/125 causal constraints (skipped 6 transitions) in 13 ms.
[2026-05-23 09:09:40] [INFO ] Added : 116 causal constraints over 24 iterations in 603 ms. Result :sat
Minimization took 230 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-23 09:09:40] [INFO ] [Real]Absence check using 35 positive place invariants in 17 ms returned sat
[2026-05-23 09:09:40] [INFO ] [Real]Absence check using 35 positive and 25 generalized place invariants in 23 ms returned sat
[2026-05-23 09:09:40] [INFO ] [Real]Absence check using state equation in 155 ms returned sat
[2026-05-23 09:09:40] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-23 09:09:40] [INFO ] [Nat]Absence check using 35 positive place invariants in 18 ms returned sat
[2026-05-23 09:09:41] [INFO ] [Nat]Absence check using 35 positive and 25 generalized place invariants in 23 ms returned sat
[2026-05-23 09:09:41] [INFO ] [Nat]Absence check using state equation in 152 ms returned sat
[2026-05-23 09:09:41] [INFO ] [Nat]Added 2 Read/Feed constraints in 5 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 09:09:41] [INFO ] Deduced a trap composed of 15 places in 162 ms of which 21 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 09:09:41] [INFO ] Deduced a trap composed of 7 places in 167 ms of which 15 ms to minimize.
[2026-05-23 09:09:41] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 372 ms
[2026-05-23 09:09:41] [INFO ] Computed and/alt/rep : 125/233/125 causal constraints (skipped 6 transitions) in 15 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 09:09:42] [INFO ] Deduced a trap composed of 20 places in 57 ms of which 3 ms to minimize.
[2026-05-23 09:09:42] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 96 ms
[2026-05-23 09:09:42] [INFO ] Added : 119 causal constraints over 24 iterations in 697 ms. Result :sat
Minimization took 127 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-23 09:09:42] [INFO ] [Real]Absence check using 35 positive place invariants in 18 ms returned sat
[2026-05-23 09:09:42] [INFO ] [Real]Absence check using 35 positive and 25 generalized place invariants in 22 ms returned sat
[2026-05-23 09:09:42] [INFO ] [Real]Absence check using state equation in 136 ms returned sat
[2026-05-23 09:09:42] [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 09:09:42] [INFO ] [Nat]Absence check using 35 positive place invariants in 19 ms returned sat
[2026-05-23 09:09:42] [INFO ] [Nat]Absence check using 35 positive and 25 generalized place invariants in 22 ms returned sat
[2026-05-23 09:09:42] [INFO ] [Nat]Absence check using state equation in 150 ms returned sat
[2026-05-23 09:09:42] [INFO ] [Nat]Added 2 Read/Feed constraints in 5 ms returned sat
[2026-05-23 09:09:42] [INFO ] Computed and/alt/rep : 125/233/125 causal constraints (skipped 6 transitions) in 16 ms.
[2026-05-23 09:09:43] [INFO ] Added : 66 causal constraints over 14 iterations in 380 ms. Result :sat
Minimization took 135 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-23 09:09:43] [INFO ] [Real]Absence check using 35 positive place invariants in 17 ms returned sat
[2026-05-23 09:09:43] [INFO ] [Real]Absence check using 35 positive and 25 generalized place invariants in 21 ms returned sat
[2026-05-23 09:09:43] [INFO ] [Real]Absence check using state equation in 148 ms returned sat
[2026-05-23 09:09:43] [INFO ] [Real]Added 2 Read/Feed constraints in 1 ms returned sat
[2026-05-23 09:09:43] [INFO ] Computed and/alt/rep : 125/233/125 causal constraints (skipped 6 transitions) in 18 ms.
[2026-05-23 09:09:44] [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 09:09:44] [INFO ] [Nat]Absence check using 35 positive place invariants in 17 ms returned sat
[2026-05-23 09:09:44] [INFO ] [Nat]Absence check using 35 positive and 25 generalized place invariants in 22 ms returned sat
[2026-05-23 09:09:44] [INFO ] [Nat]Absence check using state equation in 143 ms returned sat
[2026-05-23 09:09:44] [INFO ] [Nat]Added 2 Read/Feed constraints in 2 ms returned sat
[2026-05-23 09:09:44] [INFO ] Computed and/alt/rep : 125/233/125 causal constraints (skipped 6 transitions) in 15 ms.
[2026-05-23 09:09:45] [INFO ] Added : 110 causal constraints over 23 iterations in 702 ms. Result :sat
Minimization took 117 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-23 09:09:45] [INFO ] [Real]Absence check using 35 positive place invariants in 17 ms returned sat
[2026-05-23 09:09:45] [INFO ] [Real]Absence check using 35 positive and 25 generalized place invariants in 23 ms returned sat
[2026-05-23 09:09:45] [INFO ] [Real]Absence check using state equation in 145 ms returned sat
[2026-05-23 09:09:45] [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 09:09:45] [INFO ] [Nat]Absence check using 35 positive place invariants in 18 ms returned sat
[2026-05-23 09:09:45] [INFO ] [Nat]Absence check using 35 positive and 25 generalized place invariants in 22 ms returned sat
[2026-05-23 09:09:45] [INFO ] [Nat]Absence check using state equation in 142 ms returned sat
[2026-05-23 09:09:45] [INFO ] [Nat]Added 2 Read/Feed constraints in 5 ms returned sat
[2026-05-23 09:09:45] [INFO ] Computed and/alt/rep : 125/233/125 causal constraints (skipped 6 transitions) in 17 ms.
[2026-05-23 09:09:46] [INFO ] Added : 86 causal constraints over 18 iterations in 457 ms. Result :sat
Minimization took 104 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0, 0, 0, 0, 0] Max Struct:[1, 1, 1, 1, 1]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0, 0, 0, 0, 0] Max Struct:[1, 1, 1, 1, 1]
Support contains 5 out of 192 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 192/192 places, 134/134 transitions.
Applied a total of 0 rules in 11 ms. Remains 192 /192 variables (removed 0) and now considering 134/134 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 11 ms. Remains : 192/192 places, 134/134 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 192/192 places, 134/134 transitions.
Applied a total of 0 rules in 9 ms. Remains 192 /192 variables (removed 0) and now considering 134/134 (removed 0) transitions.
[2026-05-23 09:09:47] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-23 09:09:47] [INFO ] Implicit Places using invariants in 256 ms returned []
[2026-05-23 09:09:47] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-23 09:09:47] [INFO ] State equation strengthened by 2 read => feed constraints.
[2026-05-23 09:09:48] [INFO ] Implicit Places using invariants and state equation in 496 ms returned []
Implicit Place search using SMT with State Equation took 753 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-23 09:09:48] [INFO ] Redundant transitions in 11 ms returned []
Running 131 sub problems to find dead transitions.
[2026-05-23 09:09:48] [INFO ] Invariant cache hit.
[2026-05-23 09:09:48] [INFO ] State equation strengthened by 2 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/189 variables, 35/35 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/189 variables, 17/52 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/189 variables, 0/52 constraints. Problems are: Problem set: 0 solved, 131 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 2/191 variables, 8/60 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/191 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 5 (OVERLAPS) 134/325 variables, 191/251 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/325 variables, 2/253 constraints. Problems are: Problem set: 0 solved, 131 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 09:09:53] [INFO ] Deduced a trap composed of 7 places in 102 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 09:09:53] [INFO ] Deduced a trap composed of 11 places in 103 ms of which 13 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 09:09:53] [INFO ] Deduced a trap composed of 10 places in 101 ms of which 6 ms to minimize.
At refinement iteration 7 (INCLUDED_ONLY) 0/325 variables, 3/256 constraints. Problems are: Problem set: 0 solved, 131 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 09:09:55] [INFO ] Deduced a trap composed of 5 places in 75 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 09:09:55] [INFO ] Deduced a trap composed of 35 places in 126 ms of which 23 ms to minimize.
At refinement iteration 8 (INCLUDED_ONLY) 0/325 variables, 2/258 constraints. Problems are: Problem set: 0 solved, 131 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 09:09:57] [INFO ] Deduced a trap composed of 6 places in 107 ms of which 6 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/325 variables, 1/259 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/325 variables, 0/259 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 11 (OVERLAPS) 1/326 variables, 1/260 constraints. Problems are: Problem set: 0 solved, 131 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 09:10:01] [INFO ] Deduced a trap composed of 15 places in 121 ms of which 18 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 09:10:02] [INFO ] Deduced a trap composed of 16 places in 164 ms of which 15 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 09:10:02] [INFO ] Deduced a trap composed of 17 places in 171 ms of which 21 ms to minimize.
At refinement iteration 12 (INCLUDED_ONLY) 0/326 variables, 3/263 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/326 variables, 0/263 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 14 (OVERLAPS) 0/326 variables, 0/263 constraints. Problems are: Problem set: 0 solved, 131 unsolved
No progress, stopping.
After SMT solving in domain Real declared 326/326 variables, and 263 constraints, problems are : Problem set: 0 solved, 131 unsolved in 20837 ms.
Refiners :[Positive P Invariants (semi-flows): 35/35 constraints, Generalized P Invariants (flows): 25/25 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 131/131 constraints, Known Traps: 9/9 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 131 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/189 variables, 35/35 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/189 variables, 17/52 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/189 variables, 9/61 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/189 variables, 0/61 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 4 (OVERLAPS) 2/191 variables, 8/69 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/191 variables, 0/69 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 6 (OVERLAPS) 134/325 variables, 191/260 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/325 variables, 2/262 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/325 variables, 131/393 constraints. Problems are: Problem set: 0 solved, 131 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 09:10:18] [INFO ] Deduced a trap composed of 14 places in 67 ms of which 7 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/325 variables, 1/394 constraints. Problems are: Problem set: 0 solved, 131 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 325/326 variables, and 394 constraints, problems are : Problem set: 0 solved, 131 unsolved in 30023 ms.
Refiners :[Positive P Invariants (semi-flows): 35/35 constraints, Generalized P Invariants (flows): 25/25 constraints, State Equation: 191/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 131/131 constraints, Known Traps: 10/10 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 51039ms problems are : Problem set: 0 solved, 131 unsolved
Search for dead transitions found 0 dead transitions in 51054ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 51854 ms. Remains : 192/192 places, 134/134 transitions.
RANDOM walk for 40000 steps (546 resets) in 1214 ms. (32 steps per ms) remains 10/10 properties
BEST_FIRST walk for 40003 steps (93 resets) in 248 ms. (160 steps per ms) remains 10/10 properties
BEST_FIRST walk for 40004 steps (82 resets) in 255 ms. (156 steps per ms) remains 10/10 properties
BEST_FIRST walk for 40004 steps (95 resets) in 238 ms. (167 steps per ms) remains 10/10 properties
BEST_FIRST walk for 40004 steps (91 resets) in 169 ms. (235 steps per ms) remains 10/10 properties
BEST_FIRST walk for 40004 steps (85 resets) in 162 ms. (245 steps per ms) remains 10/10 properties
BEST_FIRST walk for 40004 steps (91 resets) in 117 ms. (339 steps per ms) remains 10/10 properties
[2026-05-23 09:10:39] [INFO ] Flatten gal took : 193 ms
BEST_FIRST walk for 40004 steps (91 resets) in 124 ms. (320 steps per ms) remains 10/10 properties
BEST_FIRST walk for 40002 steps (82 resets) in 124 ms. (320 steps per ms) remains 10/10 properties
[2026-05-23 09:10:40] [INFO ] Flatten gal took : 69 ms
BEST_FIRST walk for 40003 steps (76 resets) in 147 ms. (270 steps per ms) remains 10/10 properties
[2026-05-23 09:10:40] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality4356326672597564130.gal : 17 ms
BEST_FIRST walk for 40004 steps (83 resets) in 136 ms. (292 steps per ms) remains 10/10 properties
[2026-05-23 09:10:40] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality16215685163079740556.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/ReachabilityCardinality4356326672597564130.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality16215685163079740556.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...329
Loading property file /tmp/ReachabilityCardinality16215685163079740556.prop.
SDD proceeding with computation,10 properties remain. new max is 4
SDD size :1 after 4
SDD proceeding with computation,10 properties remain. new max is 8
SDD size :4 after 10
SDD proceeding with computation,10 properties remain. new max is 16
SDD size :10 after 22
SDD proceeding with computation,10 properties remain. new max is 32
SDD size :22 after 28
SDD proceeding with computation,10 properties remain. new max is 64
SDD size :28 after 636
SDD proceeding with computation,10 properties remain. new max is 128
SDD size :636 after 666
SDD proceeding with computation,10 properties remain. new max is 256
SDD size :666 after 818
SDD proceeding with computation,10 properties remain. new max is 512
SDD size :818 after 35952
SDD proceeding with computation,10 properties remain. new max is 1024
SDD size :35952 after 82924
SDD proceeding with computation,10 properties remain. new max is 2048
SDD size :82924 after 415672
SDD proceeding with computation,10 properties remain. new max is 4096
SDD size :4.51269e+08 after 6.76855e+08
SDD proceeding with computation,10 properties remain. new max is 8192
SDD size :7.06975e+08 after 7.07545e+08
SDD proceeding with computation,10 properties remain. new max is 16384
SDD size :5.58062e+09 after 7.96424e+09
Interrupted probabilistic random walk after 572576 steps, run timeout after 3001 ms. (steps per millisecond=190 ) properties seen :0 out of 10
Probabilistic random walk after 572576 steps, saw 82299 distinct states, run finished after 3007 ms. (steps per millisecond=190 ) properties seen :0
[2026-05-23 09:10:43] [INFO ] Invariant cache hit.
[2026-05-23 09:10:43] [INFO ] State equation strengthened by 2 read => feed constraints.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/5 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 1 (OVERLAPS) 92/97 variables, 8/8 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/97 variables, 0/8 constraints. Problems are: Problem set: 0 solved, 10 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 33/130 variables, 23/31 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/130 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 5 (OVERLAPS) 25/155 variables, 17/48 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/155 variables, 0/48 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 7 (OVERLAPS) 7/162 variables, 7/55 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/162 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 9 (OVERLAPS) 113/275 variables, 162/217 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/275 variables, 2/219 constraints. Problems are: Problem set: 0 solved, 10 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 09:10:43] [INFO ] Deduced a trap composed of 7 places in 127 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 09:10:43] [INFO ] Deduced a trap composed of 9 places in 110 ms of which 8 ms to minimize.
At refinement iteration 11 (INCLUDED_ONLY) 0/275 variables, 2/221 constraints. Problems are: Problem set: 0 solved, 10 unsolved
SDD proceeding with computation,10 properties remain. new max is 32768
SDD size :8.25738e+09 after 9.28829e+09
At refinement iteration 12 (INCLUDED_ONLY) 0/275 variables, 0/221 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 13 (OVERLAPS) 33/308 variables, 12/233 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/308 variables, 4/237 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/308 variables, 0/237 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 16 (OVERLAPS) 1/309 variables, 1/238 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/309 variables, 1/239 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/309 variables, 0/239 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 19 (OVERLAPS) 17/326 variables, 17/256 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/326 variables, 0/256 constraints. Problems are: Problem set: 0 solved, 10 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 09:10:44] [INFO ] Deduced a trap composed of 5 places in 48 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 09:10:44] [INFO ] Deduced a trap composed of 14 places in 71 ms of which 9 ms to minimize.
At refinement iteration 21 (OVERLAPS) 0/326 variables, 2/258 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/326 variables, 0/258 constraints. Problems are: Problem set: 0 solved, 10 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 09:10:45] [INFO ] Deduced a trap composed of 7 places in 71 ms of which 5 ms to minimize.
At refinement iteration 23 (OVERLAPS) 0/326 variables, 1/259 constraints. Problems are: Problem set: 0 solved, 10 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 09:10:45] [INFO ] Deduced a trap composed of 6 places in 96 ms of which 4 ms to minimize.
At refinement iteration 24 (INCLUDED_ONLY) 0/326 variables, 1/260 constraints. Problems are: Problem set: 0 solved, 10 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 09:10:45] [INFO ] Deduced a trap composed of 7 places in 66 ms of which 4 ms to minimize.
At refinement iteration 25 (INCLUDED_ONLY) 0/326 variables, 1/261 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 26 (INCLUDED_ONLY) 0/326 variables, 0/261 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 27 (OVERLAPS) 0/326 variables, 0/261 constraints. Problems are: Problem set: 0 solved, 10 unsolved
No progress, stopping.
After SMT solving in domain Real declared 326/326 variables, and 261 constraints, problems are : Problem set: 0 solved, 10 unsolved in 3084 ms.
Refiners :[Positive P Invariants (semi-flows): 35/35 constraints, Generalized P Invariants (flows): 25/25 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 10/10 constraints, Known Traps: 7/7 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 10 unsolved
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/5 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 1 (OVERLAPS) 92/97 variables, 8/8 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/97 variables, 0/8 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 3 (OVERLAPS) 33/130 variables, 23/31 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/130 variables, 1/32 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/130 variables, 0/32 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 6 (OVERLAPS) 25/155 variables, 17/49 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/155 variables, 1/50 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/155 variables, 0/50 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 9 (OVERLAPS) 7/162 variables, 7/57 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/162 variables, 0/57 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 11 (OVERLAPS) 113/275 variables, 162/219 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/275 variables, 2/221 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/275 variables, 8/229 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/275 variables, 0/229 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 15 (OVERLAPS) 33/308 variables, 12/241 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/308 variables, 4/245 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/308 variables, 2/247 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/308 variables, 4/251 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/308 variables, 0/251 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 20 (OVERLAPS) 1/309 variables, 1/252 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/309 variables, 1/253 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/309 variables, 1/254 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 23 (INCLUDED_ONLY) 0/309 variables, 0/254 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 24 (OVERLAPS) 17/326 variables, 17/271 constraints. Problems are: Problem set: 0 solved, 10 unsolved
SDD proceeding with computation,10 properties remain. new max is 65536
SDD size :7.13581e+10 after 8.81372e+10
At refinement iteration 25 (INCLUDED_ONLY) 0/326 variables, 0/271 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 26 (OVERLAPS) 0/326 variables, 0/271 constraints. Problems are: Problem set: 0 solved, 10 unsolved
No progress, stopping.
After SMT solving in domain Int declared 326/326 variables, and 271 constraints, problems are : Problem set: 0 solved, 10 unsolved in 1895 ms.
Refiners :[Positive P Invariants (semi-flows): 35/35 constraints, Generalized P Invariants (flows): 25/25 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 10/10 constraints, Known Traps: 7/7 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 4988ms problems are : Problem set: 0 solved, 10 unsolved
Fused 10 Parikh solutions to 4 different solutions.
Parikh walk visited 0 properties in 5116 ms.
Support contains 5 out of 192 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 192/192 places, 134/134 transitions.
Applied a total of 0 rules in 11 ms. Remains 192 /192 variables (removed 0) and now considering 134/134 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 11 ms. Remains : 192/192 places, 134/134 transitions.
RANDOM walk for 40000 steps (549 resets) in 330 ms. (120 steps per ms) remains 10/10 properties
BEST_FIRST walk for 40002 steps (91 resets) in 152 ms. (261 steps per ms) remains 10/10 properties
BEST_FIRST walk for 40003 steps (89 resets) in 114 ms. (347 steps per ms) remains 10/10 properties
BEST_FIRST walk for 40004 steps (85 resets) in 122 ms. (325 steps per ms) remains 10/10 properties
BEST_FIRST walk for 40003 steps (98 resets) in 119 ms. (333 steps per ms) remains 10/10 properties
BEST_FIRST walk for 40003 steps (87 resets) in 132 ms. (300 steps per ms) remains 10/10 properties
BEST_FIRST walk for 40004 steps (93 resets) in 120 ms. (330 steps per ms) remains 10/10 properties
BEST_FIRST walk for 40003 steps (106 resets) in 126 ms. (314 steps per ms) remains 10/10 properties
BEST_FIRST walk for 40004 steps (93 resets) in 114 ms. (347 steps per ms) remains 10/10 properties
BEST_FIRST walk for 40003 steps (93 resets) in 121 ms. (327 steps per ms) remains 10/10 properties
BEST_FIRST walk for 40003 steps (86 resets) in 139 ms. (285 steps per ms) remains 10/10 properties
SDD proceeding with computation,10 properties remain. new max is 131072
SDD size :1.77511e+11 after 1.77699e+11
Interrupted probabilistic random walk after 570063 steps, run timeout after 3001 ms. (steps per millisecond=189 ) properties seen :0 out of 10
Probabilistic random walk after 570063 steps, saw 81953 distinct states, run finished after 3001 ms. (steps per millisecond=189 ) properties seen :0
[2026-05-23 09:10:56] [INFO ] Invariant cache hit.
[2026-05-23 09:10:56] [INFO ] State equation strengthened by 2 read => feed constraints.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/5 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 1 (OVERLAPS) 92/97 variables, 8/8 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/97 variables, 0/8 constraints. Problems are: Problem set: 0 solved, 10 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 33/130 variables, 23/31 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/130 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 5 (OVERLAPS) 25/155 variables, 17/48 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/155 variables, 0/48 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 7 (OVERLAPS) 7/162 variables, 7/55 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/162 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 9 (OVERLAPS) 113/275 variables, 162/217 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/275 variables, 2/219 constraints. Problems are: Problem set: 0 solved, 10 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 09:10:57] [INFO ] Deduced a trap composed of 7 places in 84 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 09:10:57] [INFO ] Deduced a trap composed of 9 places in 84 ms of which 8 ms to minimize.
At refinement iteration 11 (INCLUDED_ONLY) 0/275 variables, 2/221 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/275 variables, 0/221 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 13 (OVERLAPS) 33/308 variables, 12/233 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/308 variables, 4/237 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/308 variables, 0/237 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 16 (OVERLAPS) 1/309 variables, 1/238 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/309 variables, 1/239 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/309 variables, 0/239 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 19 (OVERLAPS) 17/326 variables, 17/256 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/326 variables, 0/256 constraints. Problems are: Problem set: 0 solved, 10 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 09:10:58] [INFO ] Deduced a trap composed of 5 places in 53 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 09:10:58] [INFO ] Deduced a trap composed of 14 places in 64 ms of which 8 ms to minimize.
At refinement iteration 21 (OVERLAPS) 0/326 variables, 2/258 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/326 variables, 0/258 constraints. Problems are: Problem set: 0 solved, 10 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 09:10:58] [INFO ] Deduced a trap composed of 7 places in 78 ms of which 5 ms to minimize.
At refinement iteration 23 (OVERLAPS) 0/326 variables, 1/259 constraints. Problems are: Problem set: 0 solved, 10 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 09:10:58] [INFO ] Deduced a trap composed of 6 places in 69 ms of which 3 ms to minimize.
At refinement iteration 24 (INCLUDED_ONLY) 0/326 variables, 1/260 constraints. Problems are: Problem set: 0 solved, 10 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 09:10:59] [INFO ] Deduced a trap composed of 7 places in 69 ms of which 5 ms to minimize.
At refinement iteration 25 (INCLUDED_ONLY) 0/326 variables, 1/261 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 26 (INCLUDED_ONLY) 0/326 variables, 0/261 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 27 (OVERLAPS) 0/326 variables, 0/261 constraints. Problems are: Problem set: 0 solved, 10 unsolved
No progress, stopping.
After SMT solving in domain Real declared 326/326 variables, and 261 constraints, problems are : Problem set: 0 solved, 10 unsolved in 2871 ms.
Refiners :[Positive P Invariants (semi-flows): 35/35 constraints, Generalized P Invariants (flows): 25/25 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 10/10 constraints, Known Traps: 7/7 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 10 unsolved
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/5 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 1 (OVERLAPS) 92/97 variables, 8/8 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/97 variables, 0/8 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 3 (OVERLAPS) 33/130 variables, 23/31 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/130 variables, 1/32 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/130 variables, 0/32 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 6 (OVERLAPS) 25/155 variables, 17/49 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/155 variables, 1/50 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/155 variables, 0/50 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 9 (OVERLAPS) 7/162 variables, 7/57 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/162 variables, 0/57 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 11 (OVERLAPS) 113/275 variables, 162/219 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/275 variables, 2/221 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/275 variables, 8/229 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/275 variables, 0/229 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 15 (OVERLAPS) 33/308 variables, 12/241 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/308 variables, 4/245 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/308 variables, 2/247 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/308 variables, 4/251 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/308 variables, 0/251 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 20 (OVERLAPS) 1/309 variables, 1/252 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/309 variables, 1/253 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/309 variables, 1/254 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 23 (INCLUDED_ONLY) 0/309 variables, 0/254 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 24 (OVERLAPS) 17/326 variables, 17/271 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 25 (INCLUDED_ONLY) 0/326 variables, 0/271 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 26 (OVERLAPS) 0/326 variables, 0/271 constraints. Problems are: Problem set: 0 solved, 10 unsolved
No progress, stopping.
After SMT solving in domain Int declared 326/326 variables, and 271 constraints, problems are : Problem set: 0 solved, 10 unsolved in 1810 ms.
Refiners :[Positive P Invariants (semi-flows): 35/35 constraints, Generalized P Invariants (flows): 25/25 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 10/10 constraints, Known Traps: 7/7 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 4688ms problems are : Problem set: 0 solved, 10 unsolved
Fused 10 Parikh solutions to 4 different solutions.
Parikh walk visited 0 properties in 5172 ms.
Support contains 5 out of 192 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 192/192 places, 134/134 transitions.
Applied a total of 0 rules in 12 ms. Remains 192 /192 variables (removed 0) and now considering 134/134 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 12 ms. Remains : 192/192 places, 134/134 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 192/192 places, 134/134 transitions.
Applied a total of 0 rules in 13 ms. Remains 192 /192 variables (removed 0) and now considering 134/134 (removed 0) transitions.
[2026-05-23 09:11:06] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-23 09:11:06] [INFO ] Implicit Places using invariants in 187 ms returned []
[2026-05-23 09:11:06] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-23 09:11:06] [INFO ] State equation strengthened by 2 read => feed constraints.
[2026-05-23 09:11:07] [INFO ] Implicit Places using invariants and state equation in 327 ms returned []
Implicit Place search using SMT with State Equation took 517 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-23 09:11:07] [INFO ] Redundant transitions in 3 ms returned []
Running 131 sub problems to find dead transitions.
[2026-05-23 09:11:07] [INFO ] Invariant cache hit.
[2026-05-23 09:11:07] [INFO ] State equation strengthened by 2 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
Invariant property MIN2 does not hold.
Reachability property MAX2 is true.
At refinement iteration 0 (INCLUDED_ONLY) 0/189 variables, 35/35 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/189 variables, 17/52 constraints. Problems are: Problem set: 0 solved, 131 unsolved
SDD proceeding with computation,8 properties remain. new max is 131072
SDD size :5.487e+11 after 5.96619e+11
At refinement iteration 2 (INCLUDED_ONLY) 0/189 variables, 0/52 constraints. Problems are: Problem set: 0 solved, 131 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 2/191 variables, 8/60 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/191 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 5 (OVERLAPS) 134/325 variables, 191/251 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/325 variables, 2/253 constraints. Problems are: Problem set: 0 solved, 131 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 09:11:10] [INFO ] Deduced a trap composed of 7 places in 72 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 09:11:10] [INFO ] Deduced a trap composed of 11 places in 66 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 09:11:10] [INFO ] Deduced a trap composed of 10 places in 64 ms of which 4 ms to minimize.
At refinement iteration 7 (INCLUDED_ONLY) 0/325 variables, 3/256 constraints. Problems are: Problem set: 0 solved, 131 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 09:11:11] [INFO ] Deduced a trap composed of 5 places in 47 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 09:11:11] [INFO ] Deduced a trap composed of 35 places in 84 ms of which 14 ms to minimize.
At refinement iteration 8 (INCLUDED_ONLY) 0/325 variables, 2/258 constraints. Problems are: Problem set: 0 solved, 131 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 09:11:12] [INFO ] Deduced a trap composed of 6 places in 72 ms of which 4 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/325 variables, 1/259 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/325 variables, 0/259 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 11 (OVERLAPS) 1/326 variables, 1/260 constraints. Problems are: Problem set: 0 solved, 131 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 09:11:15] [INFO ] Deduced a trap composed of 15 places in 102 ms of which 10 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 09:11:15] [INFO ] Deduced a trap composed of 16 places in 95 ms of which 9 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 09:11:16] [INFO ] Deduced a trap composed of 17 places in 94 ms of which 13 ms to minimize.
At refinement iteration 12 (INCLUDED_ONLY) 0/326 variables, 3/263 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/326 variables, 0/263 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 14 (OVERLAPS) 0/326 variables, 0/263 constraints. Problems are: Problem set: 0 solved, 131 unsolved
No progress, stopping.
After SMT solving in domain Real declared 326/326 variables, and 263 constraints, problems are : Problem set: 0 solved, 131 unsolved in 13242 ms.
Refiners :[Positive P Invariants (semi-flows): 35/35 constraints, Generalized P Invariants (flows): 25/25 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 131/131 constraints, Known Traps: 9/9 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 131 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/189 variables, 35/35 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/189 variables, 17/52 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/189 variables, 9/61 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/189 variables, 0/61 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 4 (OVERLAPS) 2/191 variables, 8/69 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/191 variables, 0/69 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 6 (OVERLAPS) 134/325 variables, 191/260 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/325 variables, 2/262 constraints. Problems are: Problem set: 0 solved, 131 unsolved
Invariant property MIN4 does not hold.
Reachability property MAX4 is true.
Invariant property MIN3 does not hold.
Reachability property MAX3 is true.
SDD proceeding with computation,4 properties remain. new max is 131072
SDD size :9.40552e+11 after 1.00248e+12
At refinement iteration 8 (INCLUDED_ONLY) 0/325 variables, 131/393 constraints. Problems are: Problem set: 0 solved, 131 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 09:11:27] [INFO ] Deduced a trap composed of 14 places in 60 ms of which 5 ms to minimize.
Detected timeout of ITS tools.
[2026-05-23 09:11:30] [INFO ] Flatten gal took : 35 ms
[2026-05-23 09:11:30] [INFO ] Applying decomposition
[2026-05-23 09:11:30] [INFO ] Flatten gal took : 18 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/graph16529148043570088921.txt' '-o' '/tmp/graph16529148043570088921.bin' '-w' '/tmp/graph16529148043570088921.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/louvain-linux64' '/tmp/graph16529148043570088921.bin' '-l' '-1' '-v' '-w' '/tmp/graph16529148043570088921.weights' '-q' '0' '-e' '0.001'
[2026-05-23 09:11:30] [INFO ] Decomposing Gal with order
[2026-05-23 09:11:30] [INFO ] Rewriting arrays to variables to allow decomposition.
[2026-05-23 09:11:30] [INFO ] Removed a total of 23 redundant transitions.
[2026-05-23 09:11:30] [INFO ] Flatten gal took : 74 ms
[2026-05-23 09:11:30] [INFO ] Fuse similar labels procedure discarded/fused a total of 4 labels/synchronizations in 8 ms.
[2026-05-23 09:11:30] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality2253902330368392248.gal : 10 ms
[2026-05-23 09:11:30] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality14600375555786978842.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/ReachabilityCardinality2253902330368392248.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality14600375555786978842.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/ReachabilityCardinality14600375555786978842.prop.
SDD proceeding with computation,4 properties remain. new max is 4
SDD size :1 after 2
SDD proceeding with computation,4 properties remain. new max is 8
SDD size :2 after 4
SDD proceeding with computation,4 properties remain. new max is 16
SDD size :4 after 36
SDD proceeding with computation,4 properties remain. new max is 32
SDD size :36 after 2640
SDD proceeding with computation,4 properties remain. new max is 64
SDD size :8206 after 2.67525e+08
SDD proceeding with computation,4 properties remain. new max is 128
SDD size :2.67525e+08 after 6.43676e+08
SDD proceeding with computation,4 properties remain. new max is 256
SDD size :6.43676e+08 after 1.1314e+09
SDD proceeding with computation,4 properties remain. new max is 512
SDD size :1.0707e+12 after 1.29765e+12
At refinement iteration 9 (INCLUDED_ONLY) 0/325 variables, 1/394 constraints. Problems are: Problem set: 0 solved, 131 unsolved
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
petri\_inst\_inst\_mod\_flat,3.96119e+12,14.3472,277384,13239,1832,517783,5631,254,1.26805e+06,221,27700,0
Total reachable state count : 3961190091904

Verifying 4 reachability properties.
Reachability property MAX0 is true.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
MAX0,385024,14.415,277384,72,158,517783,5631,254,1.26805e+06,223,27700,0
Invariant property MIN0 does not hold.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
MIN0,385024,14.4256,277384,72,158,517783,5631,257,1.26805e+06,224,27700,0
Reachability property MAX1 is true.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
MAX1,3.60378e+09,14.4284,277384,1338,404,517783,5631,257,1.26805e+06,225,27700,0
Invariant property MIN1 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
MIN1,3.60378e+09,14.4309,277384,1338,404,517783,5631,259,1.26805e+06,226,27700,0
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 09:11:47] [INFO ] Deduced a trap composed of 17 places in 84 ms of which 10 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/325 variables, 1/395 constraints. Problems are: Problem set: 0 solved, 131 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 325/326 variables, and 395 constraints, problems are : Problem set: 0 solved, 131 unsolved in 30011 ms.
Refiners :[Positive P Invariants (semi-flows): 35/35 constraints, Generalized P Invariants (flows): 25/25 constraints, State Equation: 191/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 131/131 constraints, Known Traps: 11/11 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 43313ms problems are : Problem set: 0 solved, 131 unsolved
Search for dead transitions found 0 dead transitions in 43318ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 43859 ms. Remains : 192/192 places, 134/134 transitions.
FORMULA DES-PT-20a-UpperBounds-15 1 TECHNIQUES REACHABILITY_MAX
FORMULA DES-PT-20a-UpperBounds-10 1 TECHNIQUES REACHABILITY_MAX
FORMULA DES-PT-20a-UpperBounds-08 1 TECHNIQUES REACHABILITY_MAX
FORMULA DES-PT-20a-UpperBounds-05 1 TECHNIQUES REACHABILITY_MAX
FORMULA DES-PT-20a-UpperBounds-02 1 TECHNIQUES REACHABILITY_MAX
Current structural bounds on expressions (After reachability solving 5 queries.) : Max Seen:[] Max Struct:[]
All properties solved without resorting to model-checking.
Total runtime 150907 ms.

BK_STOP 1779527510485

--------------------
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="DES-PT-20a"
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 DES-PT-20a, 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 r095-smll-177946996300048"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/DES-PT-20a.tgz
mv DES-PT-20a 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 ;