Execution Chart

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

Trace from the execution

Formatting '/data/fkordon/mcc2025-input.r111-smll-174867015800009.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2025-input.qcow2 backing_fmt=qcow2 cluster_size=65536 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
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=====================================================================
Generated by BenchKit 2-5832
Executing tool gold2024
Input is FunctionPointer-PT-b004, examination is UpperBounds
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r111-smll-174867015800009
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 824K
-rw-r--r-- 1 mcc users 8.5K May 29 14:47 CTLCardinality.txt
-rw-r--r-- 1 mcc users 96K May 29 14:47 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.3K May 29 14:47 CTLFireability.txt
-rw-r--r-- 1 mcc users 45K May 29 14:47 CTLFireability.xml
-rw-r--r-- 1 mcc users 3.6K May 29 14:47 LTLCardinality.txt
-rw-r--r-- 1 mcc users 26K May 29 14:47 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.3K May 29 14:47 LTLFireability.txt
-rw-r--r-- 1 mcc users 19K May 29 14:47 LTLFireability.xml
-rw-r--r-- 1 mcc users 7.9K May 29 14:47 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 76K May 29 14:47 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 10K May 29 14:47 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 89K May 29 14:47 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K May 29 14:47 UpperBounds.txt
-rw-r--r-- 1 mcc users 4.1K May 29 14:47 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 May 29 14:32 equiv_col
-rw-r--r-- 1 mcc users 5 May 29 14:32 instance
-rw-r--r-- 1 mcc users 6 May 29 14:32 iscolored
-rw-r--r-- 1 mcc users 391K May 29 14:32 model.pnml

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

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

The expected result is a vector of positive values
NUM_VECTOR

echo here is the order used to build the result vector(from xml file)
FORMULA_NAME FunctionPointer-PT-b004-UpperBounds-00
FORMULA_NAME FunctionPointer-PT-b004-UpperBounds-01
FORMULA_NAME FunctionPointer-PT-b004-UpperBounds-02
FORMULA_NAME FunctionPointer-PT-b004-UpperBounds-03
FORMULA_NAME FunctionPointer-PT-b004-UpperBounds-04
FORMULA_NAME FunctionPointer-PT-b004-UpperBounds-05
FORMULA_NAME FunctionPointer-PT-b004-UpperBounds-06
FORMULA_NAME FunctionPointer-PT-b004-UpperBounds-07
FORMULA_NAME FunctionPointer-PT-b004-UpperBounds-08
FORMULA_NAME FunctionPointer-PT-b004-UpperBounds-09
FORMULA_NAME FunctionPointer-PT-b004-UpperBounds-10
FORMULA_NAME FunctionPointer-PT-b004-UpperBounds-11
FORMULA_NAME FunctionPointer-PT-b004-UpperBounds-12
FORMULA_NAME FunctionPointer-PT-b004-UpperBounds-13
FORMULA_NAME FunctionPointer-PT-b004-UpperBounds-14
FORMULA_NAME FunctionPointer-PT-b004-UpperBounds-15

=== Now, execution of the tool begins

BK_START 1748762340252

Invoking MCC driver with
BK_TOOL=gold2024
BK_EXAMINATION=UpperBounds
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=FunctionPointer-PT-b004
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
UpperBounds PT
Running Version 202405141337
[2025-06-01 07:19:02] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, UpperBounds, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2025-06-01 07:19:02] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2025-06-01 07:19:03] [INFO ] Load time of PNML (sax parser for PT used): 406 ms
[2025-06-01 07:19:03] [INFO ] Transformed 306 places.
[2025-06-01 07:19:03] [INFO ] Transformed 840 transitions.
[2025-06-01 07:19:03] [INFO ] Parsed PT model containing 306 places and 840 transitions and 3392 arcs in 644 ms.
Parsed 16 properties from file /home/mcc/execution/UpperBounds.xml in 17 ms.
Deduced a syphon composed of 84 places in 24 ms
Reduce places removed 84 places and 192 transitions.
FORMULA FunctionPointer-PT-b004-UpperBounds-00 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA FunctionPointer-PT-b004-UpperBounds-02 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA FunctionPointer-PT-b004-UpperBounds-05 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] Max Struct:[+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] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 07:19:03] [INFO ] Flow matrix only has 414 transitions (discarded 234 similar events)
// Phase 1: matrix 414 rows 222 cols
[2025-06-01 07:19:03] [INFO ] Computed 4 invariants in 57 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[+inf, 4, 1, +inf, 4, +inf, +inf, +inf, +inf, +inf, +inf, 1, +inf]
RANDOM walk for 10000 steps (18 resets) in 118 ms. (84 steps per ms)
FORMULA FunctionPointer-PT-b004-UpperBounds-14 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA FunctionPointer-PT-b004-UpperBounds-04 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA FunctionPointer-PT-b004-UpperBounds-03 4 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 100008 steps (28 resets) in 292 ms. (341 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[8, 4, 2, 4, 5, 3, 6, 10, 25, 3] Max Struct:[+inf, +inf, 4, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 07:19:04] [INFO ] Flow matrix only has 414 transitions (discarded 234 similar events)
[2025-06-01 07:19:04] [INFO ] Invariant cache hit.
[2025-06-01 07:19:04] [INFO ] [Real]Absence check using 3 positive place invariants in 9 ms returned sat
[2025-06-01 07:19:04] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 12 ms returned sat
[2025-06-01 07:19:04] [INFO ] [Real]Absence check using state equation in 304 ms returned sat
[2025-06-01 07:19:04] [INFO ] State equation strengthened by 65 read => feed constraints.
[2025-06-01 07:19:04] [INFO ] [Real]Added 65 Read/Feed constraints in 22 ms returned sat
[2025-06-01 07:19:04] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:19:05] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 07:19:05] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2025-06-01 07:19:05] [INFO ] [Nat]Absence check using state equation in 206 ms returned sat
[2025-06-01 07:19:05] [INFO ] [Nat]Added 65 Read/Feed constraints in 66 ms returned sat
[2025-06-01 07:19:05] [INFO ] Deduced a trap composed of 22 places in 334 ms of which 45 ms to minimize.
[2025-06-01 07:19:05] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 424 ms
[2025-06-01 07:19:05] [INFO ] Computed and/alt/rep : 57/91/57 causal constraints (skipped 355 transitions) in 144 ms.
[2025-06-01 07:19:06] [INFO ] Added : 2 causal constraints over 1 iterations in 284 ms. Result :sat
Minimization took 171 ms.
[2025-06-01 07:19:06] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2025-06-01 07:19:06] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 17 ms returned sat
[2025-06-01 07:19:06] [INFO ] [Real]Absence check using state equation in 208 ms returned sat
[2025-06-01 07:19:06] [INFO ] [Real]Added 65 Read/Feed constraints in 25 ms returned sat
[2025-06-01 07:19:06] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:19:06] [INFO ] [Nat]Absence check using 3 positive place invariants in 6 ms returned sat
[2025-06-01 07:19:06] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2025-06-01 07:19:06] [INFO ] [Nat]Absence check using state equation in 226 ms returned sat
[2025-06-01 07:19:06] [INFO ] [Nat]Added 65 Read/Feed constraints in 25 ms returned sat
[2025-06-01 07:19:07] [INFO ] Deduced a trap composed of 51 places in 242 ms of which 5 ms to minimize.
[2025-06-01 07:19:07] [INFO ] Deduced a trap composed of 21 places in 248 ms of which 5 ms to minimize.
[2025-06-01 07:19:07] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 562 ms
[2025-06-01 07:19:07] [INFO ] Computed and/alt/rep : 57/91/57 causal constraints (skipped 355 transitions) in 122 ms.
[2025-06-01 07:19:07] [INFO ] Added : 2 causal constraints over 1 iterations in 217 ms. Result :sat
Minimization took 185 ms.
[2025-06-01 07:19:08] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2025-06-01 07:19:08] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2025-06-01 07:19:08] [INFO ] [Real]Absence check using state equation in 192 ms returned sat
[2025-06-01 07:19:08] [INFO ] [Real]Added 65 Read/Feed constraints in 11 ms returned sat
[2025-06-01 07:19:08] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:19:08] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 07:19:08] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2025-06-01 07:19:08] [INFO ] [Nat]Absence check using state equation in 179 ms returned sat
[2025-06-01 07:19:08] [INFO ] [Nat]Added 65 Read/Feed constraints in 15 ms returned sat
[2025-06-01 07:19:08] [INFO ] Computed and/alt/rep : 57/91/57 causal constraints (skipped 355 transitions) in 89 ms.
[2025-06-01 07:19:08] [INFO ] Added : 0 causal constraints over 0 iterations in 139 ms. Result :sat
Minimization took 108 ms.
[2025-06-01 07:19:08] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 07:19:08] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2025-06-01 07:19:09] [INFO ] [Real]Absence check using state equation in 174 ms returned sat
[2025-06-01 07:19:09] [INFO ] [Real]Added 65 Read/Feed constraints in 18 ms returned sat
[2025-06-01 07:19:09] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:19:09] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2025-06-01 07:19:09] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2025-06-01 07:19:09] [INFO ] [Nat]Absence check using state equation in 195 ms returned sat
[2025-06-01 07:19:09] [INFO ] [Nat]Added 65 Read/Feed constraints in 17 ms returned sat
[2025-06-01 07:19:09] [INFO ] Deduced a trap composed of 26 places in 245 ms of which 5 ms to minimize.
[2025-06-01 07:19:09] [INFO ] Deduced a trap composed of 21 places in 207 ms of which 3 ms to minimize.
[2025-06-01 07:19:09] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 503 ms
[2025-06-01 07:19:09] [INFO ] Computed and/alt/rep : 57/91/57 causal constraints (skipped 355 transitions) in 54 ms.
[2025-06-01 07:19:10] [INFO ] Added : 2 causal constraints over 1 iterations in 132 ms. Result :sat
Minimization took 125 ms.
[2025-06-01 07:19:10] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2025-06-01 07:19:10] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2025-06-01 07:19:10] [INFO ] [Real]Absence check using state equation in 206 ms returned sat
[2025-06-01 07:19:10] [INFO ] [Real]Added 65 Read/Feed constraints in 40 ms returned sat
[2025-06-01 07:19:10] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:19:10] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2025-06-01 07:19:10] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2025-06-01 07:19:10] [INFO ] [Nat]Absence check using state equation in 178 ms returned sat
[2025-06-01 07:19:10] [INFO ] [Nat]Added 65 Read/Feed constraints in 37 ms returned sat
[2025-06-01 07:19:11] [INFO ] Deduced a trap composed of 22 places in 168 ms of which 3 ms to minimize.
[2025-06-01 07:19:11] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 218 ms
[2025-06-01 07:19:11] [INFO ] Computed and/alt/rep : 57/91/57 causal constraints (skipped 355 transitions) in 56 ms.
[2025-06-01 07:19:11] [INFO ] Added : 1 causal constraints over 1 iterations in 127 ms. Result :sat
Minimization took 109 ms.
[2025-06-01 07:19:11] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:19:11] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 0 ms returned sat
[2025-06-01 07:19:11] [INFO ] [Real]Absence check using state equation in 147 ms returned sat
[2025-06-01 07:19:11] [INFO ] [Real]Added 65 Read/Feed constraints in 13 ms returned sat
[2025-06-01 07:19:11] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:19:11] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2025-06-01 07:19:11] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2025-06-01 07:19:11] [INFO ] [Nat]Absence check using state equation in 206 ms returned sat
[2025-06-01 07:19:11] [INFO ] [Nat]Added 65 Read/Feed constraints in 25 ms returned sat
[2025-06-01 07:19:12] [INFO ] Deduced a trap composed of 26 places in 273 ms of which 3 ms to minimize.
[2025-06-01 07:19:12] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 317 ms
[2025-06-01 07:19:12] [INFO ] Computed and/alt/rep : 57/91/57 causal constraints (skipped 355 transitions) in 50 ms.
[2025-06-01 07:19:12] [INFO ] Added : 1 causal constraints over 1 iterations in 130 ms. Result :sat
Minimization took 166 ms.
[2025-06-01 07:19:12] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2025-06-01 07:19:12] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2025-06-01 07:19:12] [INFO ] [Real]Absence check using state equation in 211 ms returned sat
[2025-06-01 07:19:12] [INFO ] [Real]Added 65 Read/Feed constraints in 22 ms returned sat
[2025-06-01 07:19:12] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:19:13] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2025-06-01 07:19:13] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 3 ms returned sat
[2025-06-01 07:19:13] [INFO ] [Nat]Absence check using state equation in 206 ms returned sat
[2025-06-01 07:19:13] [INFO ] [Nat]Added 65 Read/Feed constraints in 18 ms returned sat
[2025-06-01 07:19:13] [INFO ] Computed and/alt/rep : 57/91/57 causal constraints (skipped 355 transitions) in 46 ms.
[2025-06-01 07:19:13] [INFO ] Added : 2 causal constraints over 1 iterations in 129 ms. Result :sat
Minimization took 165 ms.
[2025-06-01 07:19:13] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 07:19:13] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2025-06-01 07:19:13] [INFO ] [Real]Absence check using state equation in 151 ms returned sat
[2025-06-01 07:19:13] [INFO ] [Real]Added 65 Read/Feed constraints in 41 ms returned sat
[2025-06-01 07:19:13] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:19:13] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2025-06-01 07:19:13] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2025-06-01 07:19:14] [INFO ] [Nat]Absence check using state equation in 149 ms returned sat
[2025-06-01 07:19:14] [INFO ] [Nat]Added 65 Read/Feed constraints in 31 ms returned sat
[2025-06-01 07:19:14] [INFO ] Deduced a trap composed of 22 places in 241 ms of which 5 ms to minimize.
[2025-06-01 07:19:14] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 295 ms
[2025-06-01 07:19:14] [INFO ] Computed and/alt/rep : 57/91/57 causal constraints (skipped 355 transitions) in 51 ms.
[2025-06-01 07:19:14] [INFO ] Added : 1 causal constraints over 1 iterations in 140 ms. Result :sat
Minimization took 165 ms.
[2025-06-01 07:19:14] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:19:14] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2025-06-01 07:19:15] [INFO ] [Real]Absence check using state equation in 175 ms returned sat
[2025-06-01 07:19:15] [INFO ] [Real]Added 65 Read/Feed constraints in 16 ms returned sat
[2025-06-01 07:19:15] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:19:15] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2025-06-01 07:19:15] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2025-06-01 07:19:15] [INFO ] [Nat]Absence check using state equation in 212 ms returned sat
[2025-06-01 07:19:15] [INFO ] [Nat]Added 65 Read/Feed constraints in 15 ms returned sat
[2025-06-01 07:19:15] [INFO ] Deduced a trap composed of 21 places in 284 ms of which 4 ms to minimize.
[2025-06-01 07:19:15] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 329 ms
[2025-06-01 07:19:15] [INFO ] Computed and/alt/rep : 57/91/57 causal constraints (skipped 355 transitions) in 60 ms.
[2025-06-01 07:19:15] [INFO ] Added : 1 causal constraints over 1 iterations in 150 ms. Result :sat
Minimization took 165 ms.
[2025-06-01 07:19:16] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2025-06-01 07:19:16] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2025-06-01 07:19:16] [INFO ] [Real]Absence check using state equation in 198 ms returned sat
[2025-06-01 07:19:16] [INFO ] [Real]Added 65 Read/Feed constraints in 22 ms returned sat
[2025-06-01 07:19:16] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:19:16] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2025-06-01 07:19:16] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2025-06-01 07:19:16] [INFO ] [Nat]Absence check using state equation in 209 ms returned sat
[2025-06-01 07:19:16] [INFO ] [Nat]Added 65 Read/Feed constraints in 20 ms returned sat
[2025-06-01 07:19:16] [INFO ] Computed and/alt/rep : 57/91/57 causal constraints (skipped 355 transitions) in 60 ms.
[2025-06-01 07:19:16] [INFO ] Added : 2 causal constraints over 1 iterations in 151 ms. Result :sat
Minimization took 163 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[8, 4, 2, 4, 5, 3, 6, 10, 25, 3] Max Struct:[+inf, +inf, 4, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
FORMULA FunctionPointer-PT-b004-UpperBounds-07 4 TECHNIQUES TOPOLOGICAL PARIKH_WALK
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[8, 4, 4, 5, 3, 6, 10, 25, 3] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
Support contains 9 out of 222 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 222/222 places, 648/648 transitions.
Graph (complete) has 932 edges and 222 vertex of which 188 are kept as prefixes of interest. Removing 34 places using SCC suffix rule.7 ms
Discarding 34 places :
Also discarding 0 output transitions
Drop transitions (Empty/Sink Transition effects.) removed 48 transitions
Reduce isomorphic transitions removed 48 transitions.
Iterating post reduction 0 with 48 rules applied. Total rules applied 49 place count 188 transition count 600
Discarding 26 places :
Symmetric choice reduction at 1 with 26 rule applications. Total rules 75 place count 162 transition count 458
Iterating global reduction 1 with 26 rules applied. Total rules applied 101 place count 162 transition count 458
Ensure Unique test removed 36 transitions
Reduce isomorphic transitions removed 36 transitions.
Iterating post reduction 1 with 36 rules applied. Total rules applied 137 place count 162 transition count 422
Discarding 13 places :
Symmetric choice reduction at 2 with 13 rule applications. Total rules 150 place count 149 transition count 396
Iterating global reduction 2 with 13 rules applied. Total rules applied 163 place count 149 transition count 396
Discarding 7 places :
Symmetric choice reduction at 2 with 7 rule applications. Total rules 170 place count 142 transition count 382
Iterating global reduction 2 with 7 rules applied. Total rules applied 177 place count 142 transition count 382
Discarding 6 places :
Symmetric choice reduction at 2 with 6 rule applications. Total rules 183 place count 136 transition count 358
Iterating global reduction 2 with 6 rules applied. Total rules applied 189 place count 136 transition count 358
Discarding 5 places :
Symmetric choice reduction at 2 with 5 rule applications. Total rules 194 place count 131 transition count 348
Iterating global reduction 2 with 5 rules applied. Total rules applied 199 place count 131 transition count 348
Discarding 3 places :
Symmetric choice reduction at 2 with 3 rule applications. Total rules 202 place count 128 transition count 336
Iterating global reduction 2 with 3 rules applied. Total rules applied 205 place count 128 transition count 336
Discarding 3 places :
Symmetric choice reduction at 2 with 3 rule applications. Total rules 208 place count 125 transition count 324
Iterating global reduction 2 with 3 rules applied. Total rules applied 211 place count 125 transition count 324
Discarding 3 places :
Symmetric choice reduction at 2 with 3 rule applications. Total rules 214 place count 122 transition count 318
Iterating global reduction 2 with 3 rules applied. Total rules applied 217 place count 122 transition count 318
Discarding 3 places :
Symmetric choice reduction at 2 with 3 rule applications. Total rules 220 place count 119 transition count 312
Iterating global reduction 2 with 3 rules applied. Total rules applied 223 place count 119 transition count 312
Discarding 3 places :
Symmetric choice reduction at 2 with 3 rule applications. Total rules 226 place count 116 transition count 306
Iterating global reduction 2 with 3 rules applied. Total rules applied 229 place count 116 transition count 306
Discarding 3 places :
Symmetric choice reduction at 2 with 3 rule applications. Total rules 232 place count 113 transition count 300
Iterating global reduction 2 with 3 rules applied. Total rules applied 235 place count 113 transition count 300
Discarding 3 places :
Symmetric choice reduction at 2 with 3 rule applications. Total rules 238 place count 110 transition count 294
Iterating global reduction 2 with 3 rules applied. Total rules applied 241 place count 110 transition count 294
Drop transitions (Redundant composition of simpler transitions.) removed 10 transitions
Redundant transition composition rules discarded 10 transitions
Iterating global reduction 2 with 10 rules applied. Total rules applied 251 place count 110 transition count 284
Applied a total of 251 rules in 364 ms. Remains 110 /222 variables (removed 112) and now considering 284/648 (removed 364) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 396 ms. Remains : 110/222 places, 284/648 transitions.
[2025-06-01 07:19:17] [INFO ] Flow matrix only has 178 transitions (discarded 106 similar events)
Found an invariant !
This invariant on transitions {30=1, 96=1, 146=1, 177=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {29=1, 95=1, 129=1, 171=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 75 ms. (steps per millisecond=133 ) properties (out of 9) seen :[2, 0, 0, 2, 3, 4, 6, 5, 3]
Current structural bounds on expressions (after cover walk) : Max Seen:[8, 4, 4, 5, 3, 6, 10, 25, 3] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 07:19:17] [INFO ] Flow matrix only has 178 transitions (discarded 106 similar events)
// Phase 1: matrix 178 rows 110 cols
[2025-06-01 07:19:17] [INFO ] Computed 3 invariants in 2 ms
Current structural bounds on expressions (after invariants) : Max Seen:[8, 4, 4, 5, 3, 6, 10, 25, 3] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000001 steps (2 resets) in 1854 ms. (539 steps per ms)
BEST_FIRST walk for 9000009 steps (18 resets) in 5097 ms. (1765 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[188, 709, 469, 1118, 626, 590, 901, 2309, 254] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 07:19:24] [INFO ] Flow matrix only has 178 transitions (discarded 106 similar events)
[2025-06-01 07:19:24] [INFO ] Invariant cache hit.
[2025-06-01 07:19:24] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:19:24] [INFO ] [Real]Absence check using state equation in 59 ms returned sat
[2025-06-01 07:19:24] [INFO ] State equation strengthened by 27 read => feed constraints.
[2025-06-01 07:19:24] [INFO ] [Real]Added 27 Read/Feed constraints in 9 ms returned sat
[2025-06-01 07:19:24] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:19:25] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:19:25] [INFO ] [Nat]Absence check using state equation in 57 ms returned sat
[2025-06-01 07:19:25] [INFO ] [Nat]Added 27 Read/Feed constraints in 8 ms returned sat
[2025-06-01 07:19:25] [INFO ] Computed and/alt/rep : 69/356/66 causal constraints (skipped 110 transitions) in 16 ms.
[2025-06-01 07:19:25] [INFO ] Added : 28 causal constraints over 6 iterations in 141 ms. Result :sat
Minimization took 75 ms.
[2025-06-01 07:19:25] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:19:25] [INFO ] [Real]Absence check using state equation in 96 ms returned sat
[2025-06-01 07:19:25] [INFO ] [Real]Added 27 Read/Feed constraints in 10 ms returned sat
[2025-06-01 07:19:25] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:19:25] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:19:25] [INFO ] [Nat]Absence check using state equation in 94 ms returned sat
[2025-06-01 07:19:25] [INFO ] [Nat]Added 27 Read/Feed constraints in 12 ms returned sat
[2025-06-01 07:19:25] [INFO ] Deduced a trap composed of 23 places in 168 ms of which 3 ms to minimize.
[2025-06-01 07:19:26] [INFO ] Deduced a trap composed of 24 places in 162 ms of which 3 ms to minimize.
[2025-06-01 07:19:26] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 371 ms
[2025-06-01 07:19:26] [INFO ] Computed and/alt/rep : 69/356/66 causal constraints (skipped 110 transitions) in 24 ms.
[2025-06-01 07:19:26] [INFO ] Added : 26 causal constraints over 6 iterations in 187 ms. Result :sat
Minimization took 60 ms.
[2025-06-01 07:19:26] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:19:26] [INFO ] [Real]Absence check using state equation in 80 ms returned sat
[2025-06-01 07:19:26] [INFO ] [Real]Added 27 Read/Feed constraints in 7 ms returned sat
[2025-06-01 07:19:26] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:19:26] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:19:26] [INFO ] [Nat]Absence check using state equation in 78 ms returned sat
[2025-06-01 07:19:26] [INFO ] [Nat]Added 27 Read/Feed constraints in 11 ms returned sat
[2025-06-01 07:19:26] [INFO ] Deduced a trap composed of 19 places in 129 ms of which 2 ms to minimize.
[2025-06-01 07:19:26] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 149 ms
[2025-06-01 07:19:26] [INFO ] Computed and/alt/rep : 69/356/66 causal constraints (skipped 110 transitions) in 20 ms.
[2025-06-01 07:19:26] [INFO ] Added : 11 causal constraints over 3 iterations in 100 ms. Result :sat
Minimization took 43 ms.
[2025-06-01 07:19:26] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:19:26] [INFO ] [Real]Absence check using state equation in 79 ms returned sat
[2025-06-01 07:19:27] [INFO ] [Real]Added 27 Read/Feed constraints in 10 ms returned sat
[2025-06-01 07:19:27] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:19:27] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:19:27] [INFO ] [Nat]Absence check using state equation in 85 ms returned sat
[2025-06-01 07:19:27] [INFO ] [Nat]Added 27 Read/Feed constraints in 18 ms returned sat
[2025-06-01 07:19:27] [INFO ] Deduced a trap composed of 19 places in 111 ms of which 3 ms to minimize.
[2025-06-01 07:19:27] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 132 ms
[2025-06-01 07:19:27] [INFO ] Computed and/alt/rep : 69/356/66 causal constraints (skipped 110 transitions) in 21 ms.
[2025-06-01 07:19:27] [INFO ] Added : 5 causal constraints over 3 iterations in 98 ms. Result :sat
Minimization took 68 ms.
[2025-06-01 07:19:27] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:19:27] [INFO ] [Real]Absence check using state equation in 60 ms returned sat
[2025-06-01 07:19:27] [INFO ] [Real]Added 27 Read/Feed constraints in 7 ms returned sat
[2025-06-01 07:19:27] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:19:27] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 07:19:27] [INFO ] [Nat]Absence check using state equation in 87 ms returned sat
[2025-06-01 07:19:27] [INFO ] [Nat]Added 27 Read/Feed constraints in 12 ms returned sat
[2025-06-01 07:19:27] [INFO ] Deduced a trap composed of 19 places in 111 ms of which 3 ms to minimize.
[2025-06-01 07:19:27] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 135 ms
[2025-06-01 07:19:27] [INFO ] Computed and/alt/rep : 69/356/66 causal constraints (skipped 110 transitions) in 22 ms.
[2025-06-01 07:19:28] [INFO ] Added : 26 causal constraints over 6 iterations in 179 ms. Result :sat
Minimization took 73 ms.
[2025-06-01 07:19:28] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:19:28] [INFO ] [Real]Absence check using state equation in 63 ms returned sat
[2025-06-01 07:19:28] [INFO ] [Real]Added 27 Read/Feed constraints in 6 ms returned sat
[2025-06-01 07:19:28] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:19:28] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:19:28] [INFO ] [Nat]Absence check using state equation in 85 ms returned sat
[2025-06-01 07:19:28] [INFO ] [Nat]Added 27 Read/Feed constraints in 7 ms returned sat
[2025-06-01 07:19:28] [INFO ] Deduced a trap composed of 19 places in 155 ms of which 2 ms to minimize.
[2025-06-01 07:19:28] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 194 ms
[2025-06-01 07:19:28] [INFO ] Computed and/alt/rep : 69/356/66 causal constraints (skipped 110 transitions) in 15 ms.
[2025-06-01 07:19:28] [INFO ] Added : 38 causal constraints over 8 iterations in 201 ms. Result :sat
Minimization took 84 ms.
[2025-06-01 07:19:28] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:19:29] [INFO ] [Real]Absence check using state equation in 93 ms returned sat
[2025-06-01 07:19:29] [INFO ] [Real]Added 27 Read/Feed constraints in 14 ms returned sat
[2025-06-01 07:19:29] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:19:29] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:19:29] [INFO ] [Nat]Absence check using state equation in 67 ms returned sat
[2025-06-01 07:19:29] [INFO ] [Nat]Added 27 Read/Feed constraints in 14 ms returned sat
[2025-06-01 07:19:29] [INFO ] Deduced a trap composed of 19 places in 143 ms of which 2 ms to minimize.
[2025-06-01 07:19:29] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 166 ms
[2025-06-01 07:19:29] [INFO ] Computed and/alt/rep : 69/356/66 causal constraints (skipped 110 transitions) in 23 ms.
[2025-06-01 07:19:29] [INFO ] Added : 8 causal constraints over 3 iterations in 115 ms. Result :sat
Minimization took 65 ms.
[2025-06-01 07:19:29] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 07:19:29] [INFO ] [Real]Absence check using state equation in 96 ms returned sat
[2025-06-01 07:19:29] [INFO ] [Real]Added 27 Read/Feed constraints in 10 ms returned sat
[2025-06-01 07:19:29] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:19:29] [INFO ] [Nat]Absence check using 3 positive place invariants in 13 ms returned sat
[2025-06-01 07:19:29] [INFO ] [Nat]Absence check using state equation in 97 ms returned sat
[2025-06-01 07:19:29] [INFO ] [Nat]Added 27 Read/Feed constraints in 10 ms returned sat
[2025-06-01 07:19:30] [INFO ] Deduced a trap composed of 23 places in 133 ms of which 3 ms to minimize.
[2025-06-01 07:19:30] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 156 ms
[2025-06-01 07:19:30] [INFO ] Computed and/alt/rep : 69/356/66 causal constraints (skipped 110 transitions) in 24 ms.
[2025-06-01 07:19:30] [INFO ] Added : 9 causal constraints over 5 iterations in 126 ms. Result :sat
Minimization took 42 ms.
[2025-06-01 07:19:30] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:19:30] [INFO ] [Real]Absence check using state equation in 61 ms returned sat
[2025-06-01 07:19:30] [INFO ] [Real]Added 27 Read/Feed constraints in 6 ms returned sat
[2025-06-01 07:19:30] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:19:30] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:19:30] [INFO ] [Nat]Absence check using state equation in 62 ms returned sat
[2025-06-01 07:19:30] [INFO ] [Nat]Added 27 Read/Feed constraints in 11 ms returned sat
[2025-06-01 07:19:30] [INFO ] Computed and/alt/rep : 69/356/66 causal constraints (skipped 110 transitions) in 14 ms.
[2025-06-01 07:19:30] [INFO ] Added : 13 causal constraints over 4 iterations in 92 ms. Result :sat
Minimization took 45 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[188, 709, 469, 1118, 626, 590, 901, 2309, 254] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[188, 709, 469, 1118, 626, 590, 901, 2309, 254] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
Support contains 9 out of 110 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 110/110 places, 284/284 transitions.
Applied a total of 0 rules in 12 ms. Remains 110 /110 variables (removed 0) and now considering 284/284 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 12 ms. Remains : 110/110 places, 284/284 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 110/110 places, 284/284 transitions.
Applied a total of 0 rules in 12 ms. Remains 110 /110 variables (removed 0) and now considering 284/284 (removed 0) transitions.
[2025-06-01 07:19:52] [INFO ] Flow matrix only has 178 transitions (discarded 106 similar events)
[2025-06-01 07:19:52] [INFO ] Invariant cache hit.
[2025-06-01 07:19:52] [INFO ] Implicit Places using invariants in 226 ms returned []
[2025-06-01 07:19:52] [INFO ] Flow matrix only has 178 transitions (discarded 106 similar events)
[2025-06-01 07:19:52] [INFO ] Invariant cache hit.
[2025-06-01 07:19:52] [INFO ] State equation strengthened by 27 read => feed constraints.
[2025-06-01 07:19:53] [INFO ] Implicit Places using invariants and state equation in 323 ms returned []
Implicit Place search using SMT with State Equation took 554 ms to find 0 implicit places.
[2025-06-01 07:19:53] [INFO ] Redundant transitions in 26 ms returned []
Running 282 sub problems to find dead transitions.
[2025-06-01 07:19:53] [INFO ] Flow matrix only has 178 transitions (discarded 106 similar events)
[2025-06-01 07:19:53] [INFO ] Invariant cache hit.
[2025-06-01 07:19:53] [INFO ] State equation strengthened by 27 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/110 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 282 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/110 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 282 unsolved
At refinement iteration 2 (OVERLAPS) 178/288 variables, 110/113 constraints. Problems are: Problem set: 0 solved, 282 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/288 variables, 27/140 constraints. Problems are: Problem set: 0 solved, 282 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/288 variables, 0/140 constraints. Problems are: Problem set: 0 solved, 282 unsolved
At refinement iteration 5 (OVERLAPS) 0/288 variables, 0/140 constraints. Problems are: Problem set: 0 solved, 282 unsolved
No progress, stopping.
After SMT solving in domain Real declared 288/288 variables, and 140 constraints, problems are : Problem set: 0 solved, 282 unsolved in 10943 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 110/110 constraints, ReadFeed: 27/27 constraints, PredecessorRefiner: 282/282 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 282 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/110 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 282 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/110 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 282 unsolved
At refinement iteration 2 (OVERLAPS) 178/288 variables, 110/113 constraints. Problems are: Problem set: 0 solved, 282 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/288 variables, 27/140 constraints. Problems are: Problem set: 0 solved, 282 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/288 variables, 282/422 constraints. Problems are: Problem set: 0 solved, 282 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/288 variables, 0/422 constraints. Problems are: Problem set: 0 solved, 282 unsolved
At refinement iteration 6 (OVERLAPS) 0/288 variables, 0/422 constraints. Problems are: Problem set: 0 solved, 282 unsolved
No progress, stopping.
After SMT solving in domain Int declared 288/288 variables, and 422 constraints, problems are : Problem set: 0 solved, 282 unsolved in 15063 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 110/110 constraints, ReadFeed: 27/27 constraints, PredecessorRefiner: 282/282 constraints, Known Traps: 0/0 constraints]
After SMT, in 26614ms problems are : Problem set: 0 solved, 282 unsolved
Search for dead transitions found 0 dead transitions in 26642ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 27264 ms. Remains : 110/110 places, 284/284 transitions.
[2025-06-01 07:20:19] [INFO ] Flow matrix only has 178 transitions (discarded 106 similar events)
Found an invariant !
This invariant on transitions {30=1, 96=1, 146=1, 177=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {29=1, 95=1, 129=1, 171=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 132 ms. (steps per millisecond=75 ) properties (out of 9) seen :[1, 6, 4, 2, 2, 5, 4, 0, 0]
Current structural bounds on expressions (after cover walk) : Max Seen:[188, 709, 469, 1118, 626, 590, 901, 2309, 254] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 07:20:20] [INFO ] Flow matrix only has 178 transitions (discarded 106 similar events)
[2025-06-01 07:20:20] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[188, 709, 469, 1118, 626, 590, 901, 2309, 254] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 1497 ms. (667 steps per ms)
BEST_FIRST walk for 9000007 steps (18 resets) in 5487 ms. (1639 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[188, 709, 778, 1121, 671, 963, 901, 2309, 254] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 07:20:27] [INFO ] Flow matrix only has 178 transitions (discarded 106 similar events)
[2025-06-01 07:20:27] [INFO ] Invariant cache hit.
[2025-06-01 07:20:27] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:20:27] [INFO ] [Real]Absence check using state equation in 56 ms returned sat
[2025-06-01 07:20:27] [INFO ] State equation strengthened by 27 read => feed constraints.
[2025-06-01 07:20:27] [INFO ] [Real]Added 27 Read/Feed constraints in 8 ms returned sat
[2025-06-01 07:20:27] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:20:27] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:20:27] [INFO ] [Nat]Absence check using state equation in 53 ms returned sat
[2025-06-01 07:20:27] [INFO ] [Nat]Added 27 Read/Feed constraints in 6 ms returned sat
[2025-06-01 07:20:27] [INFO ] Computed and/alt/rep : 69/356/66 causal constraints (skipped 110 transitions) in 24 ms.
[2025-06-01 07:20:27] [INFO ] Added : 28 causal constraints over 6 iterations in 122 ms. Result :sat
Minimization took 56 ms.
[2025-06-01 07:20:27] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:20:27] [INFO ] [Real]Absence check using state equation in 101 ms returned sat
[2025-06-01 07:20:27] [INFO ] [Real]Added 27 Read/Feed constraints in 11 ms returned sat
[2025-06-01 07:20:27] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:20:27] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:20:27] [INFO ] [Nat]Absence check using state equation in 97 ms returned sat
[2025-06-01 07:20:27] [INFO ] [Nat]Added 27 Read/Feed constraints in 11 ms returned sat
[2025-06-01 07:20:28] [INFO ] Deduced a trap composed of 23 places in 144 ms of which 3 ms to minimize.
[2025-06-01 07:20:28] [INFO ] Deduced a trap composed of 24 places in 136 ms of which 2 ms to minimize.
[2025-06-01 07:20:28] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 319 ms
[2025-06-01 07:20:28] [INFO ] Computed and/alt/rep : 69/356/66 causal constraints (skipped 110 transitions) in 23 ms.
[2025-06-01 07:20:28] [INFO ] Added : 26 causal constraints over 6 iterations in 176 ms. Result :sat
Minimization took 75 ms.
[2025-06-01 07:20:28] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 07:20:28] [INFO ] [Real]Absence check using state equation in 99 ms returned sat
[2025-06-01 07:20:28] [INFO ] [Real]Added 27 Read/Feed constraints in 10 ms returned sat
[2025-06-01 07:20:28] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:20:28] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 07:20:28] [INFO ] [Nat]Absence check using state equation in 100 ms returned sat
[2025-06-01 07:20:28] [INFO ] [Nat]Added 27 Read/Feed constraints in 9 ms returned sat
[2025-06-01 07:20:28] [INFO ] Deduced a trap composed of 19 places in 147 ms of which 2 ms to minimize.
[2025-06-01 07:20:28] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 171 ms
[2025-06-01 07:20:29] [INFO ] Computed and/alt/rep : 69/356/66 causal constraints (skipped 110 transitions) in 23 ms.
[2025-06-01 07:20:29] [INFO ] Added : 11 causal constraints over 3 iterations in 115 ms. Result :sat
Minimization took 64 ms.
[2025-06-01 07:20:29] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 07:20:29] [INFO ] [Real]Absence check using state equation in 90 ms returned sat
[2025-06-01 07:20:29] [INFO ] [Real]Added 27 Read/Feed constraints in 14 ms returned sat
[2025-06-01 07:20:29] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:20:29] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:20:29] [INFO ] [Nat]Absence check using state equation in 92 ms returned sat
[2025-06-01 07:20:29] [INFO ] [Nat]Added 27 Read/Feed constraints in 14 ms returned sat
[2025-06-01 07:20:29] [INFO ] Deduced a trap composed of 19 places in 109 ms of which 2 ms to minimize.
[2025-06-01 07:20:29] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 131 ms
[2025-06-01 07:20:29] [INFO ] Computed and/alt/rep : 69/356/66 causal constraints (skipped 110 transitions) in 23 ms.
[2025-06-01 07:20:29] [INFO ] Added : 5 causal constraints over 3 iterations in 106 ms. Result :sat
Minimization took 61 ms.
[2025-06-01 07:20:29] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 07:20:29] [INFO ] [Real]Absence check using state equation in 100 ms returned sat
[2025-06-01 07:20:30] [INFO ] [Real]Added 27 Read/Feed constraints in 11 ms returned sat
[2025-06-01 07:20:30] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:20:30] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 07:20:30] [INFO ] [Nat]Absence check using state equation in 92 ms returned sat
[2025-06-01 07:20:30] [INFO ] [Nat]Added 27 Read/Feed constraints in 12 ms returned sat
[2025-06-01 07:20:30] [INFO ] Deduced a trap composed of 19 places in 108 ms of which 2 ms to minimize.
[2025-06-01 07:20:30] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 133 ms
[2025-06-01 07:20:30] [INFO ] Computed and/alt/rep : 69/356/66 causal constraints (skipped 110 transitions) in 22 ms.
[2025-06-01 07:20:30] [INFO ] Added : 26 causal constraints over 6 iterations in 172 ms. Result :sat
Minimization took 75 ms.
[2025-06-01 07:20:30] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 07:20:30] [INFO ] [Real]Absence check using state equation in 93 ms returned sat
[2025-06-01 07:20:30] [INFO ] [Real]Added 27 Read/Feed constraints in 8 ms returned sat
[2025-06-01 07:20:30] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:20:30] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:20:30] [INFO ] [Nat]Absence check using state equation in 96 ms returned sat
[2025-06-01 07:20:30] [INFO ] [Nat]Added 27 Read/Feed constraints in 10 ms returned sat
[2025-06-01 07:20:31] [INFO ] Deduced a trap composed of 19 places in 132 ms of which 2 ms to minimize.
[2025-06-01 07:20:31] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 153 ms
[2025-06-01 07:20:31] [INFO ] Computed and/alt/rep : 69/356/66 causal constraints (skipped 110 transitions) in 23 ms.
[2025-06-01 07:20:31] [INFO ] Added : 38 causal constraints over 8 iterations in 196 ms. Result :sat
Minimization took 53 ms.
[2025-06-01 07:20:31] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:20:31] [INFO ] [Real]Absence check using state equation in 80 ms returned sat
[2025-06-01 07:20:31] [INFO ] [Real]Added 27 Read/Feed constraints in 11 ms returned sat
[2025-06-01 07:20:31] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:20:31] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:20:31] [INFO ] [Nat]Absence check using state equation in 82 ms returned sat
[2025-06-01 07:20:31] [INFO ] [Nat]Added 27 Read/Feed constraints in 10 ms returned sat
[2025-06-01 07:20:31] [INFO ] Deduced a trap composed of 19 places in 100 ms of which 2 ms to minimize.
[2025-06-01 07:20:31] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 118 ms
[2025-06-01 07:20:31] [INFO ] Computed and/alt/rep : 69/356/66 causal constraints (skipped 110 transitions) in 17 ms.
[2025-06-01 07:20:31] [INFO ] Added : 8 causal constraints over 3 iterations in 93 ms. Result :sat
Minimization took 63 ms.
[2025-06-01 07:20:31] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 07:20:32] [INFO ] [Real]Absence check using state equation in 82 ms returned sat
[2025-06-01 07:20:32] [INFO ] [Real]Added 27 Read/Feed constraints in 9 ms returned sat
[2025-06-01 07:20:32] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:20:32] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:20:32] [INFO ] [Nat]Absence check using state equation in 89 ms returned sat
[2025-06-01 07:20:32] [INFO ] [Nat]Added 27 Read/Feed constraints in 10 ms returned sat
[2025-06-01 07:20:32] [INFO ] Deduced a trap composed of 23 places in 136 ms of which 3 ms to minimize.
[2025-06-01 07:20:32] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 169 ms
[2025-06-01 07:20:32] [INFO ] Computed and/alt/rep : 69/356/66 causal constraints (skipped 110 transitions) in 24 ms.
[2025-06-01 07:20:32] [INFO ] Added : 9 causal constraints over 5 iterations in 161 ms. Result :sat
Minimization took 61 ms.
[2025-06-01 07:20:32] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 07:20:32] [INFO ] [Real]Absence check using state equation in 89 ms returned sat
[2025-06-01 07:20:32] [INFO ] [Real]Added 27 Read/Feed constraints in 8 ms returned sat
[2025-06-01 07:20:32] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:20:32] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 07:20:32] [INFO ] [Nat]Absence check using state equation in 94 ms returned sat
[2025-06-01 07:20:32] [INFO ] [Nat]Added 27 Read/Feed constraints in 13 ms returned sat
[2025-06-01 07:20:33] [INFO ] Computed and/alt/rep : 69/356/66 causal constraints (skipped 110 transitions) in 23 ms.
[2025-06-01 07:20:33] [INFO ] Added : 13 causal constraints over 4 iterations in 141 ms. Result :sat
Minimization took 71 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[188, 709, 778, 1121, 671, 963, 901, 2309, 254] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[188, 709, 778, 1121, 671, 963, 901, 2309, 254] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
Support contains 9 out of 110 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 110/110 places, 284/284 transitions.
Applied a total of 0 rules in 12 ms. Remains 110 /110 variables (removed 0) and now considering 284/284 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 12 ms. Remains : 110/110 places, 284/284 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 110/110 places, 284/284 transitions.
Applied a total of 0 rules in 11 ms. Remains 110 /110 variables (removed 0) and now considering 284/284 (removed 0) transitions.
[2025-06-01 07:20:58] [INFO ] Flow matrix only has 178 transitions (discarded 106 similar events)
[2025-06-01 07:20:58] [INFO ] Invariant cache hit.
[2025-06-01 07:20:58] [INFO ] Implicit Places using invariants in 117 ms returned []
[2025-06-01 07:20:58] [INFO ] Flow matrix only has 178 transitions (discarded 106 similar events)
[2025-06-01 07:20:58] [INFO ] Invariant cache hit.
[2025-06-01 07:20:58] [INFO ] State equation strengthened by 27 read => feed constraints.
[2025-06-01 07:20:58] [INFO ] Implicit Places using invariants and state equation in 211 ms returned []
Implicit Place search using SMT with State Equation took 343 ms to find 0 implicit places.
[2025-06-01 07:20:58] [INFO ] Redundant transitions in 13 ms returned []
Running 282 sub problems to find dead transitions.
[2025-06-01 07:20:58] [INFO ] Flow matrix only has 178 transitions (discarded 106 similar events)
[2025-06-01 07:20:58] [INFO ] Invariant cache hit.
[2025-06-01 07:20:58] [INFO ] State equation strengthened by 27 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/110 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 282 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/110 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 282 unsolved
At refinement iteration 2 (OVERLAPS) 178/288 variables, 110/113 constraints. Problems are: Problem set: 0 solved, 282 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/288 variables, 27/140 constraints. Problems are: Problem set: 0 solved, 282 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/288 variables, 0/140 constraints. Problems are: Problem set: 0 solved, 282 unsolved
At refinement iteration 5 (OVERLAPS) 0/288 variables, 0/140 constraints. Problems are: Problem set: 0 solved, 282 unsolved
No progress, stopping.
After SMT solving in domain Real declared 288/288 variables, and 140 constraints, problems are : Problem set: 0 solved, 282 unsolved in 12299 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 110/110 constraints, ReadFeed: 27/27 constraints, PredecessorRefiner: 282/282 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 282 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/110 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 282 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/110 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 282 unsolved
At refinement iteration 2 (OVERLAPS) 178/288 variables, 110/113 constraints. Problems are: Problem set: 0 solved, 282 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/288 variables, 27/140 constraints. Problems are: Problem set: 0 solved, 282 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/288 variables, 282/422 constraints. Problems are: Problem set: 0 solved, 282 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/288 variables, 0/422 constraints. Problems are: Problem set: 0 solved, 282 unsolved
At refinement iteration 6 (OVERLAPS) 0/288 variables, 0/422 constraints. Problems are: Problem set: 0 solved, 282 unsolved
No progress, stopping.
After SMT solving in domain Int declared 288/288 variables, and 422 constraints, problems are : Problem set: 0 solved, 282 unsolved in 13106 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 110/110 constraints, ReadFeed: 27/27 constraints, PredecessorRefiner: 282/282 constraints, Known Traps: 0/0 constraints]
After SMT, in 25707ms problems are : Problem set: 0 solved, 282 unsolved
Search for dead transitions found 0 dead transitions in 25712ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 26091 ms. Remains : 110/110 places, 284/284 transitions.
[2025-06-01 07:21:24] [INFO ] Flow matrix only has 178 transitions (discarded 106 similar events)
Found an invariant !
This invariant on transitions {30=1, 96=1, 146=1, 177=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {29=1, 95=1, 129=1, 171=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 52 ms. (steps per millisecond=192 ) properties (out of 9) seen :[2, 5, 2, 2147483647, 3, 3, 2147483647, 6, 2]
Current structural bounds on expressions (after cover walk) : Max Seen:[188, 709, 778, +inf, 671, 963, +inf, 2309, 254] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 07:21:24] [INFO ] Flow matrix only has 178 transitions (discarded 106 similar events)
[2025-06-01 07:21:24] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[188, 709, 778, +inf, 671, 963, +inf, 2309, 254] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 1641 ms. (609 steps per ms)
FORMULA FunctionPointer-PT-b004-UpperBounds-12 +inf TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA FunctionPointer-PT-b004-UpperBounds-09 +inf TECHNIQUES TOPOLOGICAL RANDOM_WALK
BEST_FIRST walk for 7000005 steps (14 resets) in 4080 ms. (1715 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[188, 709, 778, 671, 963, 2309, 254] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 07:21:30] [INFO ] Flow matrix only has 178 transitions (discarded 106 similar events)
[2025-06-01 07:21:30] [INFO ] Invariant cache hit.
[2025-06-01 07:21:30] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:21:30] [INFO ] [Real]Absence check using state equation in 77 ms returned sat
[2025-06-01 07:21:30] [INFO ] State equation strengthened by 27 read => feed constraints.
[2025-06-01 07:21:30] [INFO ] [Real]Added 27 Read/Feed constraints in 13 ms returned sat
[2025-06-01 07:21:30] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:21:30] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 07:21:30] [INFO ] [Nat]Absence check using state equation in 96 ms returned sat
[2025-06-01 07:21:30] [INFO ] [Nat]Added 27 Read/Feed constraints in 14 ms returned sat
[2025-06-01 07:21:30] [INFO ] Computed and/alt/rep : 69/356/66 causal constraints (skipped 110 transitions) in 24 ms.
[2025-06-01 07:21:30] [INFO ] Added : 28 causal constraints over 6 iterations in 175 ms. Result :sat
Minimization took 75 ms.
[2025-06-01 07:21:30] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 07:21:30] [INFO ] [Real]Absence check using state equation in 87 ms returned sat
[2025-06-01 07:21:30] [INFO ] [Real]Added 27 Read/Feed constraints in 9 ms returned sat
[2025-06-01 07:21:30] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:21:30] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:21:30] [INFO ] [Nat]Absence check using state equation in 62 ms returned sat
[2025-06-01 07:21:30] [INFO ] [Nat]Added 27 Read/Feed constraints in 9 ms returned sat
[2025-06-01 07:21:31] [INFO ] Deduced a trap composed of 23 places in 96 ms of which 3 ms to minimize.
[2025-06-01 07:21:31] [INFO ] Deduced a trap composed of 24 places in 77 ms of which 1 ms to minimize.
[2025-06-01 07:21:31] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 203 ms
[2025-06-01 07:21:31] [INFO ] Computed and/alt/rep : 69/356/66 causal constraints (skipped 110 transitions) in 17 ms.
[2025-06-01 07:21:31] [INFO ] Added : 26 causal constraints over 6 iterations in 155 ms. Result :sat
Minimization took 77 ms.
[2025-06-01 07:21:31] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:21:31] [INFO ] [Real]Absence check using state equation in 66 ms returned sat
[2025-06-01 07:21:31] [INFO ] [Real]Added 27 Read/Feed constraints in 6 ms returned sat
[2025-06-01 07:21:31] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:21:31] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:21:31] [INFO ] [Nat]Absence check using state equation in 80 ms returned sat
[2025-06-01 07:21:31] [INFO ] [Nat]Added 27 Read/Feed constraints in 10 ms returned sat
[2025-06-01 07:21:31] [INFO ] Deduced a trap composed of 19 places in 112 ms of which 2 ms to minimize.
[2025-06-01 07:21:31] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 135 ms
[2025-06-01 07:21:31] [INFO ] Computed and/alt/rep : 69/356/66 causal constraints (skipped 110 transitions) in 23 ms.
[2025-06-01 07:21:31] [INFO ] Added : 11 causal constraints over 3 iterations in 117 ms. Result :sat
Minimization took 65 ms.
[2025-06-01 07:21:32] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 07:21:32] [INFO ] [Real]Absence check using state equation in 99 ms returned sat
[2025-06-01 07:21:32] [INFO ] [Real]Added 27 Read/Feed constraints in 9 ms returned sat
[2025-06-01 07:21:32] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:21:32] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:21:32] [INFO ] [Nat]Absence check using state equation in 78 ms returned sat
[2025-06-01 07:21:32] [INFO ] [Nat]Added 27 Read/Feed constraints in 10 ms returned sat
[2025-06-01 07:21:32] [INFO ] Deduced a trap composed of 19 places in 98 ms of which 3 ms to minimize.
[2025-06-01 07:21:32] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 117 ms
[2025-06-01 07:21:32] [INFO ] Computed and/alt/rep : 69/356/66 causal constraints (skipped 110 transitions) in 18 ms.
[2025-06-01 07:21:32] [INFO ] Added : 26 causal constraints over 6 iterations in 149 ms. Result :sat
Minimization took 72 ms.
[2025-06-01 07:21:32] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2025-06-01 07:21:32] [INFO ] [Real]Absence check using state equation in 95 ms returned sat
[2025-06-01 07:21:32] [INFO ] [Real]Added 27 Read/Feed constraints in 9 ms returned sat
[2025-06-01 07:21:32] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:21:32] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 07:21:32] [INFO ] [Nat]Absence check using state equation in 95 ms returned sat
[2025-06-01 07:21:33] [INFO ] [Nat]Added 27 Read/Feed constraints in 9 ms returned sat
[2025-06-01 07:21:33] [INFO ] Deduced a trap composed of 19 places in 112 ms of which 2 ms to minimize.
[2025-06-01 07:21:33] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 135 ms
[2025-06-01 07:21:33] [INFO ] Computed and/alt/rep : 69/356/66 causal constraints (skipped 110 transitions) in 23 ms.
[2025-06-01 07:21:33] [INFO ] Added : 38 causal constraints over 8 iterations in 227 ms. Result :sat
Minimization took 82 ms.
[2025-06-01 07:21:33] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 07:21:33] [INFO ] [Real]Absence check using state equation in 95 ms returned sat
[2025-06-01 07:21:33] [INFO ] [Real]Added 27 Read/Feed constraints in 10 ms returned sat
[2025-06-01 07:21:33] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:21:33] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 07:21:33] [INFO ] [Nat]Absence check using state equation in 95 ms returned sat
[2025-06-01 07:21:33] [INFO ] [Nat]Added 27 Read/Feed constraints in 9 ms returned sat
[2025-06-01 07:21:33] [INFO ] Deduced a trap composed of 23 places in 109 ms of which 3 ms to minimize.
[2025-06-01 07:21:33] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 133 ms
[2025-06-01 07:21:33] [INFO ] Computed and/alt/rep : 69/356/66 causal constraints (skipped 110 transitions) in 24 ms.
[2025-06-01 07:21:34] [INFO ] Added : 9 causal constraints over 5 iterations in 140 ms. Result :sat
Minimization took 62 ms.
[2025-06-01 07:21:34] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 07:21:34] [INFO ] [Real]Absence check using state equation in 99 ms returned sat
[2025-06-01 07:21:34] [INFO ] [Real]Added 27 Read/Feed constraints in 9 ms returned sat
[2025-06-01 07:21:34] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:21:34] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 07:21:34] [INFO ] [Nat]Absence check using state equation in 94 ms returned sat
[2025-06-01 07:21:34] [INFO ] [Nat]Added 27 Read/Feed constraints in 12 ms returned sat
[2025-06-01 07:21:34] [INFO ] Computed and/alt/rep : 69/356/66 causal constraints (skipped 110 transitions) in 24 ms.
[2025-06-01 07:21:34] [INFO ] Added : 13 causal constraints over 4 iterations in 139 ms. Result :sat
Minimization took 68 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[188, 709, 778, 671, 963, 2309, 254] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[192, 709, 778, 671, 963, 2309, 254] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf]
Support contains 7 out of 110 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 110/110 places, 284/284 transitions.
Discarding 2 places :
Symmetric choice reduction at 0 with 2 rule applications. Total rules 2 place count 108 transition count 280
Iterating global reduction 0 with 2 rules applied. Total rules applied 4 place count 108 transition count 280
Ensure Unique test removed 6 transitions
Reduce isomorphic transitions removed 6 transitions.
Iterating post reduction 0 with 6 rules applied. Total rules applied 10 place count 108 transition count 274
Discarding 2 places :
Symmetric choice reduction at 1 with 2 rule applications. Total rules 12 place count 106 transition count 270
Iterating global reduction 1 with 2 rules applied. Total rules applied 14 place count 106 transition count 270
Ensure Unique test removed 8 transitions
Reduce isomorphic transitions removed 8 transitions.
Iterating post reduction 1 with 8 rules applied. Total rules applied 22 place count 106 transition count 262
Applied a total of 22 rules in 17 ms. Remains 106 /110 variables (removed 4) and now considering 262/284 (removed 22) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 17 ms. Remains : 106/110 places, 262/284 transitions.
[2025-06-01 07:21:48] [INFO ] Flow matrix only has 167 transitions (discarded 95 similar events)
Found an invariant !
This invariant on transitions {30=1, 85=1, 135=1, 164=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {25=1, 80=1, 114=1, 158=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 71 ms. (steps per millisecond=140 ) properties (out of 7) seen :[3, 4, 4, 3, 2147483647, 4, 2]
Current structural bounds on expressions (after cover walk) : Max Seen:[192, 709, 778, 671, +inf, 2309, 254] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 07:21:48] [INFO ] Flow matrix only has 167 transitions (discarded 95 similar events)
// Phase 1: matrix 167 rows 106 cols
[2025-06-01 07:21:48] [INFO ] Computed 3 invariants in 1 ms
Current structural bounds on expressions (after invariants) : Max Seen:[192, 709, 778, 671, +inf, 2309, 254] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 1528 ms. (654 steps per ms)
FORMULA FunctionPointer-PT-b004-UpperBounds-11 +inf TECHNIQUES TOPOLOGICAL RANDOM_WALK
BEST_FIRST walk for 6000006 steps (12 resets) in 3475 ms. (1726 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[369, 709, 1002, 671, 2309, 254] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 07:21:53] [INFO ] Flow matrix only has 167 transitions (discarded 95 similar events)
[2025-06-01 07:21:53] [INFO ] Invariant cache hit.
[2025-06-01 07:21:53] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 07:21:53] [INFO ] [Real]Absence check using state equation in 77 ms returned sat
[2025-06-01 07:21:53] [INFO ] State equation strengthened by 27 read => feed constraints.
[2025-06-01 07:21:53] [INFO ] [Real]Added 27 Read/Feed constraints in 11 ms returned sat
[2025-06-01 07:21:53] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:21:53] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:21:53] [INFO ] [Nat]Absence check using state equation in 76 ms returned sat
[2025-06-01 07:21:53] [INFO ] [Nat]Added 27 Read/Feed constraints in 13 ms returned sat
[2025-06-01 07:21:53] [INFO ] Deduced a trap composed of 27 places in 99 ms of which 6 ms to minimize.
[2025-06-01 07:21:53] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 119 ms
[2025-06-01 07:21:53] [INFO ] Computed and/alt/rep : 69/356/66 causal constraints (skipped 99 transitions) in 19 ms.
[2025-06-01 07:21:53] [INFO ] Added : 17 causal constraints over 5 iterations in 130 ms. Result :sat
Minimization took 67 ms.
[2025-06-01 07:21:53] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:21:54] [INFO ] [Real]Absence check using state equation in 80 ms returned sat
[2025-06-01 07:21:54] [INFO ] [Real]Added 27 Read/Feed constraints in 12 ms returned sat
[2025-06-01 07:21:54] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:21:54] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:21:54] [INFO ] [Nat]Absence check using state equation in 77 ms returned sat
[2025-06-01 07:21:54] [INFO ] [Nat]Added 27 Read/Feed constraints in 14 ms returned sat
[2025-06-01 07:21:54] [INFO ] Computed and/alt/rep : 69/356/66 causal constraints (skipped 99 transitions) in 23 ms.
[2025-06-01 07:21:54] [INFO ] Added : 17 causal constraints over 4 iterations in 133 ms. Result :sat
Minimization took 69 ms.
[2025-06-01 07:21:54] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 07:21:54] [INFO ] [Real]Absence check using state equation in 89 ms returned sat
[2025-06-01 07:21:54] [INFO ] [Real]Added 27 Read/Feed constraints in 12 ms returned sat
[2025-06-01 07:21:54] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:21:54] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 07:21:54] [INFO ] [Nat]Absence check using state equation in 89 ms returned sat
[2025-06-01 07:21:54] [INFO ] [Nat]Added 27 Read/Feed constraints in 11 ms returned sat
[2025-06-01 07:21:54] [INFO ] Computed and/alt/rep : 69/356/66 causal constraints (skipped 99 transitions) in 22 ms.
[2025-06-01 07:21:54] [INFO ] Added : 20 causal constraints over 5 iterations in 150 ms. Result :sat
Minimization took 73 ms.
[2025-06-01 07:21:55] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:21:55] [INFO ] [Real]Absence check using state equation in 94 ms returned sat
[2025-06-01 07:21:55] [INFO ] [Real]Added 27 Read/Feed constraints in 11 ms returned sat
[2025-06-01 07:21:55] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:21:55] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 07:21:55] [INFO ] [Nat]Absence check using state equation in 91 ms returned sat
[2025-06-01 07:21:55] [INFO ] [Nat]Added 27 Read/Feed constraints in 14 ms returned sat
[2025-06-01 07:21:55] [INFO ] Deduced a trap composed of 27 places in 125 ms of which 2 ms to minimize.
[2025-06-01 07:21:55] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 148 ms
[2025-06-01 07:21:55] [INFO ] Computed and/alt/rep : 69/356/66 causal constraints (skipped 99 transitions) in 23 ms.
[2025-06-01 07:21:55] [INFO ] Added : 9 causal constraints over 3 iterations in 103 ms. Result :sat
Minimization took 65 ms.
[2025-06-01 07:21:55] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:21:55] [INFO ] [Real]Absence check using state equation in 88 ms returned sat
[2025-06-01 07:21:55] [INFO ] [Real]Added 27 Read/Feed constraints in 12 ms returned sat
[2025-06-01 07:21:55] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:21:55] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:21:55] [INFO ] [Nat]Absence check using state equation in 88 ms returned sat
[2025-06-01 07:21:55] [INFO ] [Nat]Added 27 Read/Feed constraints in 14 ms returned sat
[2025-06-01 07:21:56] [INFO ] Computed and/alt/rep : 69/356/66 causal constraints (skipped 99 transitions) in 21 ms.
[2025-06-01 07:21:56] [INFO ] Deduced a trap composed of 31 places in 121 ms of which 4 ms to minimize.
[2025-06-01 07:21:56] [INFO ] Deduced a trap composed of 30 places in 125 ms of which 3 ms to minimize.
[2025-06-01 07:21:56] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 292 ms
[2025-06-01 07:21:56] [INFO ] Added : 10 causal constraints over 5 iterations in 438 ms. Result :sat
Minimization took 68 ms.
[2025-06-01 07:21:56] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:21:56] [INFO ] [Real]Absence check using state equation in 92 ms returned sat
[2025-06-01 07:21:56] [INFO ] [Real]Added 27 Read/Feed constraints in 11 ms returned sat
[2025-06-01 07:21:56] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:21:56] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 07:21:56] [INFO ] [Nat]Absence check using state equation in 98 ms returned sat
[2025-06-01 07:21:56] [INFO ] [Nat]Added 27 Read/Feed constraints in 11 ms returned sat
[2025-06-01 07:21:56] [INFO ] Computed and/alt/rep : 69/356/66 causal constraints (skipped 99 transitions) in 21 ms.
[2025-06-01 07:21:57] [INFO ] Added : 24 causal constraints over 6 iterations in 165 ms. Result :sat
Minimization took 76 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[369, 709, 1002, 671, 2309, 254] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[369, 709, 1002, 671, 2309, 254] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Support contains 6 out of 106 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 106/106 places, 262/262 transitions.
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 1 place count 105 transition count 258
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 105 transition count 258
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 3 place count 104 transition count 256
Iterating global reduction 0 with 1 rules applied. Total rules applied 4 place count 104 transition count 256
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 5 place count 103 transition count 254
Iterating global reduction 0 with 1 rules applied. Total rules applied 6 place count 103 transition count 254
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 7 place count 102 transition count 252
Iterating global reduction 0 with 1 rules applied. Total rules applied 8 place count 102 transition count 252
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 9 place count 101 transition count 250
Iterating global reduction 0 with 1 rules applied. Total rules applied 10 place count 101 transition count 250
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 11 place count 100 transition count 248
Iterating global reduction 0 with 1 rules applied. Total rules applied 12 place count 100 transition count 248
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 13 place count 99 transition count 246
Iterating global reduction 0 with 1 rules applied. Total rules applied 14 place count 99 transition count 246
Applied a total of 14 rules in 25 ms. Remains 99 /106 variables (removed 7) and now considering 246/262 (removed 16) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 26 ms. Remains : 99/106 places, 246/262 transitions.
[2025-06-01 07:22:09] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
Found an invariant !
This invariant on transitions {28=1, 35=1, 39=1, 77=1, 126=1, 154=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {24=1, 73=1, 106=1, 149=1}
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 6) seen :[3, 5, 3, 3, 4, 1]
Current structural bounds on expressions (after cover walk) : Max Seen:[369, 709, 1002, 671, 2309, 254] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 07:22:09] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
// Phase 1: matrix 155 rows 99 cols
[2025-06-01 07:22:09] [INFO ] Computed 3 invariants in 1 ms
Current structural bounds on expressions (after invariants) : Max Seen:[369, 709, 1002, 671, 2309, 254] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 1379 ms. (724 steps per ms)
BEST_FIRST walk for 6000006 steps (12 resets) in 3547 ms. (1691 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[369, 709, 1204, 671, 2811, 254] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 07:22:14] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
[2025-06-01 07:22:14] [INFO ] Invariant cache hit.
[2025-06-01 07:22:14] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:22:14] [INFO ] [Real]Absence check using state equation in 47 ms returned sat
[2025-06-01 07:22:14] [INFO ] State equation strengthened by 24 read => feed constraints.
[2025-06-01 07:22:14] [INFO ] [Real]Added 24 Read/Feed constraints in 6 ms returned sat
[2025-06-01 07:22:14] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:22:14] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:22:14] [INFO ] [Nat]Absence check using state equation in 61 ms returned sat
[2025-06-01 07:22:14] [INFO ] [Nat]Added 24 Read/Feed constraints in 9 ms returned sat
[2025-06-01 07:22:14] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 14 ms.
[2025-06-01 07:22:14] [INFO ] Added : 25 causal constraints over 7 iterations in 113 ms. Result :sat
Minimization took 44 ms.
[2025-06-01 07:22:14] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:22:14] [INFO ] [Real]Absence check using state equation in 56 ms returned sat
[2025-06-01 07:22:14] [INFO ] [Real]Added 24 Read/Feed constraints in 7 ms returned sat
[2025-06-01 07:22:14] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:22:14] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:22:14] [INFO ] [Nat]Absence check using state equation in 68 ms returned sat
[2025-06-01 07:22:14] [INFO ] [Nat]Added 24 Read/Feed constraints in 7 ms returned sat
[2025-06-01 07:22:14] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 20 ms.
[2025-06-01 07:22:14] [INFO ] Added : 24 causal constraints over 6 iterations in 131 ms. Result :sat
Minimization took 44 ms.
[2025-06-01 07:22:15] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:22:15] [INFO ] [Real]Absence check using state equation in 77 ms returned sat
[2025-06-01 07:22:15] [INFO ] [Real]Added 24 Read/Feed constraints in 9 ms returned sat
[2025-06-01 07:22:15] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:22:15] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 07:22:15] [INFO ] [Nat]Absence check using state equation in 96 ms returned sat
[2025-06-01 07:22:15] [INFO ] [Nat]Added 24 Read/Feed constraints in 10 ms returned sat
[2025-06-01 07:22:15] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 21 ms.
[2025-06-01 07:22:15] [INFO ] Added : 10 causal constraints over 3 iterations in 120 ms. Result :sat
Minimization took 60 ms.
[2025-06-01 07:22:15] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:22:15] [INFO ] [Real]Absence check using state equation in 71 ms returned sat
[2025-06-01 07:22:15] [INFO ] [Real]Added 24 Read/Feed constraints in 10 ms returned sat
[2025-06-01 07:22:15] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:22:15] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:22:15] [INFO ] [Nat]Absence check using state equation in 81 ms returned sat
[2025-06-01 07:22:15] [INFO ] [Nat]Added 24 Read/Feed constraints in 11 ms returned sat
[2025-06-01 07:22:15] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 19 ms.
[2025-06-01 07:22:15] [INFO ] Added : 24 causal constraints over 6 iterations in 145 ms. Result :sat
Minimization took 66 ms.
[2025-06-01 07:22:16] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 07:22:16] [INFO ] [Real]Absence check using state equation in 78 ms returned sat
[2025-06-01 07:22:16] [INFO ] [Real]Added 24 Read/Feed constraints in 8 ms returned sat
[2025-06-01 07:22:16] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:22:16] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 07:22:16] [INFO ] [Nat]Absence check using state equation in 73 ms returned sat
[2025-06-01 07:22:16] [INFO ] [Nat]Added 24 Read/Feed constraints in 9 ms returned sat
[2025-06-01 07:22:16] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 16 ms.
[2025-06-01 07:22:16] [INFO ] Added : 6 causal constraints over 3 iterations in 88 ms. Result :sat
Minimization took 55 ms.
[2025-06-01 07:22:16] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:22:16] [INFO ] [Real]Absence check using state equation in 71 ms returned sat
[2025-06-01 07:22:16] [INFO ] [Real]Added 24 Read/Feed constraints in 7 ms returned sat
[2025-06-01 07:22:16] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:22:16] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:22:16] [INFO ] [Nat]Absence check using state equation in 67 ms returned sat
[2025-06-01 07:22:16] [INFO ] [Nat]Added 24 Read/Feed constraints in 8 ms returned sat
[2025-06-01 07:22:16] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 19 ms.
[2025-06-01 07:22:16] [INFO ] Added : 17 causal constraints over 5 iterations in 112 ms. Result :sat
Minimization took 43 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[369, 709, 1204, 671, 2811, 254] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[369, 709, 1204, 671, 2813, 254] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Support contains 6 out of 99 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 99/99 places, 246/246 transitions.
Applied a total of 0 rules in 11 ms. Remains 99 /99 variables (removed 0) and now considering 246/246 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 11 ms. Remains : 99/99 places, 246/246 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 99/99 places, 246/246 transitions.
Applied a total of 0 rules in 5 ms. Remains 99 /99 variables (removed 0) and now considering 246/246 (removed 0) transitions.
[2025-06-01 07:22:28] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
[2025-06-01 07:22:28] [INFO ] Invariant cache hit.
[2025-06-01 07:22:28] [INFO ] Implicit Places using invariants in 107 ms returned []
[2025-06-01 07:22:28] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
[2025-06-01 07:22:28] [INFO ] Invariant cache hit.
[2025-06-01 07:22:28] [INFO ] State equation strengthened by 24 read => feed constraints.
[2025-06-01 07:22:28] [INFO ] Implicit Places using invariants and state equation in 239 ms returned []
Implicit Place search using SMT with State Equation took 365 ms to find 0 implicit places.
[2025-06-01 07:22:28] [INFO ] Redundant transitions in 3 ms returned []
Running 244 sub problems to find dead transitions.
[2025-06-01 07:22:28] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
[2025-06-01 07:22:28] [INFO ] Invariant cache hit.
[2025-06-01 07:22:28] [INFO ] State equation strengthened by 24 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/99 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/99 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 2 (OVERLAPS) 155/254 variables, 99/102 constraints. Problems are: Problem set: 0 solved, 244 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/254 variables, 24/126 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/254 variables, 0/126 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 5 (OVERLAPS) 0/254 variables, 0/126 constraints. Problems are: Problem set: 0 solved, 244 unsolved
No progress, stopping.
After SMT solving in domain Real declared 254/254 variables, and 126 constraints, problems are : Problem set: 0 solved, 244 unsolved in 8018 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 99/99 constraints, ReadFeed: 24/24 constraints, PredecessorRefiner: 244/244 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 244 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/99 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/99 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 2 (OVERLAPS) 155/254 variables, 99/102 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/254 variables, 24/126 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/254 variables, 244/370 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/254 variables, 0/370 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 6 (OVERLAPS) 0/254 variables, 0/370 constraints. Problems are: Problem set: 0 solved, 244 unsolved
No progress, stopping.
After SMT solving in domain Int declared 254/254 variables, and 370 constraints, problems are : Problem set: 0 solved, 244 unsolved in 10412 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 99/99 constraints, ReadFeed: 24/24 constraints, PredecessorRefiner: 244/244 constraints, Known Traps: 0/0 constraints]
After SMT, in 18674ms problems are : Problem set: 0 solved, 244 unsolved
Search for dead transitions found 0 dead transitions in 18679ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 19058 ms. Remains : 99/99 places, 246/246 transitions.
[2025-06-01 07:22:47] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
Found an invariant !
This invariant on transitions {28=1, 35=1, 39=1, 77=1, 126=1, 154=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {24=1, 73=1, 106=1, 149=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 56 ms. (steps per millisecond=178 ) properties (out of 6) seen :[4, 4, 3, 2, 6, 2]
Current structural bounds on expressions (after cover walk) : Max Seen:[369, 709, 1204, 671, 2813, 254] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 07:22:47] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
[2025-06-01 07:22:47] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[369, 709, 1204, 671, 2813, 254] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 1681 ms. (594 steps per ms)
BEST_FIRST walk for 6000006 steps (12 resets) in 3497 ms. (1715 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[369, 709, 1204, 671, 2813, 254] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 07:22:52] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
[2025-06-01 07:22:52] [INFO ] Invariant cache hit.
[2025-06-01 07:22:53] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:22:53] [INFO ] [Real]Absence check using state equation in 58 ms returned sat
[2025-06-01 07:22:53] [INFO ] State equation strengthened by 24 read => feed constraints.
[2025-06-01 07:22:53] [INFO ] [Real]Added 24 Read/Feed constraints in 9 ms returned sat
[2025-06-01 07:22:53] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:22:53] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:22:53] [INFO ] [Nat]Absence check using state equation in 54 ms returned sat
[2025-06-01 07:22:53] [INFO ] [Nat]Added 24 Read/Feed constraints in 7 ms returned sat
[2025-06-01 07:22:53] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 14 ms.
[2025-06-01 07:22:53] [INFO ] Added : 25 causal constraints over 7 iterations in 116 ms. Result :sat
Minimization took 44 ms.
[2025-06-01 07:22:53] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:22:53] [INFO ] [Real]Absence check using state equation in 52 ms returned sat
[2025-06-01 07:22:53] [INFO ] [Real]Added 24 Read/Feed constraints in 5 ms returned sat
[2025-06-01 07:22:53] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:22:53] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:22:53] [INFO ] [Nat]Absence check using state equation in 55 ms returned sat
[2025-06-01 07:22:53] [INFO ] [Nat]Added 24 Read/Feed constraints in 5 ms returned sat
[2025-06-01 07:22:53] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 12 ms.
[2025-06-01 07:22:53] [INFO ] Added : 24 causal constraints over 6 iterations in 100 ms. Result :sat
Minimization took 43 ms.
[2025-06-01 07:22:53] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:22:53] [INFO ] [Real]Absence check using state equation in 53 ms returned sat
[2025-06-01 07:22:53] [INFO ] [Real]Added 24 Read/Feed constraints in 6 ms returned sat
[2025-06-01 07:22:53] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:22:53] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:22:53] [INFO ] [Nat]Absence check using state equation in 56 ms returned sat
[2025-06-01 07:22:53] [INFO ] [Nat]Added 24 Read/Feed constraints in 6 ms returned sat
[2025-06-01 07:22:53] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 14 ms.
[2025-06-01 07:22:54] [INFO ] Added : 10 causal constraints over 3 iterations in 68 ms. Result :sat
Minimization took 40 ms.
[2025-06-01 07:22:54] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:22:54] [INFO ] [Real]Absence check using state equation in 56 ms returned sat
[2025-06-01 07:22:54] [INFO ] [Real]Added 24 Read/Feed constraints in 6 ms returned sat
[2025-06-01 07:22:54] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:22:54] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:22:54] [INFO ] [Nat]Absence check using state equation in 55 ms returned sat
[2025-06-01 07:22:54] [INFO ] [Nat]Added 24 Read/Feed constraints in 7 ms returned sat
[2025-06-01 07:22:54] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 15 ms.
[2025-06-01 07:22:54] [INFO ] Added : 24 causal constraints over 6 iterations in 97 ms. Result :sat
Minimization took 42 ms.
[2025-06-01 07:22:54] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:22:54] [INFO ] [Real]Absence check using state equation in 55 ms returned sat
[2025-06-01 07:22:54] [INFO ] [Real]Added 24 Read/Feed constraints in 6 ms returned sat
[2025-06-01 07:22:54] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:22:54] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:22:54] [INFO ] [Nat]Absence check using state equation in 53 ms returned sat
[2025-06-01 07:22:54] [INFO ] [Nat]Added 24 Read/Feed constraints in 7 ms returned sat
[2025-06-01 07:22:54] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 14 ms.
[2025-06-01 07:22:54] [INFO ] Added : 6 causal constraints over 3 iterations in 60 ms. Result :sat
Minimization took 36 ms.
[2025-06-01 07:22:54] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:22:54] [INFO ] [Real]Absence check using state equation in 57 ms returned sat
[2025-06-01 07:22:54] [INFO ] [Real]Added 24 Read/Feed constraints in 7 ms returned sat
[2025-06-01 07:22:54] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:22:54] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:22:54] [INFO ] [Nat]Absence check using state equation in 55 ms returned sat
[2025-06-01 07:22:54] [INFO ] [Nat]Added 24 Read/Feed constraints in 9 ms returned sat
[2025-06-01 07:22:54] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 14 ms.
[2025-06-01 07:22:55] [INFO ] Added : 17 causal constraints over 5 iterations in 96 ms. Result :sat
Minimization took 41 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[369, 709, 1204, 671, 2813, 254] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[369, 709, 1204, 671, 2815, 254] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Support contains 6 out of 99 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 99/99 places, 246/246 transitions.
Applied a total of 0 rules in 6 ms. Remains 99 /99 variables (removed 0) and now considering 246/246 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 6 ms. Remains : 99/99 places, 246/246 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 99/99 places, 246/246 transitions.
Applied a total of 0 rules in 5 ms. Remains 99 /99 variables (removed 0) and now considering 246/246 (removed 0) transitions.
[2025-06-01 07:23:06] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
[2025-06-01 07:23:06] [INFO ] Invariant cache hit.
[2025-06-01 07:23:06] [INFO ] Implicit Places using invariants in 130 ms returned []
[2025-06-01 07:23:06] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
[2025-06-01 07:23:06] [INFO ] Invariant cache hit.
[2025-06-01 07:23:07] [INFO ] State equation strengthened by 24 read => feed constraints.
[2025-06-01 07:23:07] [INFO ] Implicit Places using invariants and state equation in 244 ms returned []
Implicit Place search using SMT with State Equation took 387 ms to find 0 implicit places.
[2025-06-01 07:23:07] [INFO ] Redundant transitions in 4 ms returned []
Running 244 sub problems to find dead transitions.
[2025-06-01 07:23:07] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
[2025-06-01 07:23:07] [INFO ] Invariant cache hit.
[2025-06-01 07:23:07] [INFO ] State equation strengthened by 24 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/99 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/99 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 2 (OVERLAPS) 155/254 variables, 99/102 constraints. Problems are: Problem set: 0 solved, 244 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/254 variables, 24/126 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/254 variables, 0/126 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 5 (OVERLAPS) 0/254 variables, 0/126 constraints. Problems are: Problem set: 0 solved, 244 unsolved
No progress, stopping.
After SMT solving in domain Real declared 254/254 variables, and 126 constraints, problems are : Problem set: 0 solved, 244 unsolved in 5157 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 99/99 constraints, ReadFeed: 24/24 constraints, PredecessorRefiner: 244/244 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 244 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/99 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/99 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 2 (OVERLAPS) 155/254 variables, 99/102 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/254 variables, 24/126 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/254 variables, 244/370 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/254 variables, 0/370 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 6 (OVERLAPS) 0/254 variables, 0/370 constraints. Problems are: Problem set: 0 solved, 244 unsolved
No progress, stopping.
After SMT solving in domain Int declared 254/254 variables, and 370 constraints, problems are : Problem set: 0 solved, 244 unsolved in 8525 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 99/99 constraints, ReadFeed: 24/24 constraints, PredecessorRefiner: 244/244 constraints, Known Traps: 0/0 constraints]
After SMT, in 13935ms problems are : Problem set: 0 solved, 244 unsolved
Search for dead transitions found 0 dead transitions in 13939ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 14342 ms. Remains : 99/99 places, 246/246 transitions.
[2025-06-01 07:23:21] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
Found an invariant !
This invariant on transitions {28=1, 35=1, 39=1, 77=1, 126=1, 154=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {24=1, 73=1, 106=1, 149=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 52 ms. (steps per millisecond=192 ) properties (out of 6) seen :[2, 3, 2, 2, 6, 2]
Current structural bounds on expressions (after cover walk) : Max Seen:[369, 709, 1204, 671, 2815, 254] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 07:23:21] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
[2025-06-01 07:23:21] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[369, 709, 1204, 671, 2815, 254] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 1482 ms. (674 steps per ms)
BEST_FIRST walk for 6000006 steps (12 resets) in 3483 ms. (1722 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[369, 709, 1204, 671, 2815, 254] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 07:23:26] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
[2025-06-01 07:23:26] [INFO ] Invariant cache hit.
[2025-06-01 07:23:26] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:23:26] [INFO ] [Real]Absence check using state equation in 52 ms returned sat
[2025-06-01 07:23:26] [INFO ] State equation strengthened by 24 read => feed constraints.
[2025-06-01 07:23:26] [INFO ] [Real]Added 24 Read/Feed constraints in 7 ms returned sat
[2025-06-01 07:23:26] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:23:26] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:23:26] [INFO ] [Nat]Absence check using state equation in 51 ms returned sat
[2025-06-01 07:23:26] [INFO ] [Nat]Added 24 Read/Feed constraints in 8 ms returned sat
[2025-06-01 07:23:26] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 13 ms.
[2025-06-01 07:23:26] [INFO ] Added : 25 causal constraints over 7 iterations in 110 ms. Result :sat
Minimization took 45 ms.
[2025-06-01 07:23:26] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:23:26] [INFO ] [Real]Absence check using state equation in 54 ms returned sat
[2025-06-01 07:23:26] [INFO ] [Real]Added 24 Read/Feed constraints in 5 ms returned sat
[2025-06-01 07:23:26] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:23:26] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:23:26] [INFO ] [Nat]Absence check using state equation in 54 ms returned sat
[2025-06-01 07:23:26] [INFO ] [Nat]Added 24 Read/Feed constraints in 5 ms returned sat
[2025-06-01 07:23:27] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 14 ms.
[2025-06-01 07:23:27] [INFO ] Added : 24 causal constraints over 6 iterations in 103 ms. Result :sat
Minimization took 45 ms.
[2025-06-01 07:23:27] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:23:27] [INFO ] [Real]Absence check using state equation in 54 ms returned sat
[2025-06-01 07:23:27] [INFO ] [Real]Added 24 Read/Feed constraints in 6 ms returned sat
[2025-06-01 07:23:27] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:23:27] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:23:27] [INFO ] [Nat]Absence check using state equation in 52 ms returned sat
[2025-06-01 07:23:27] [INFO ] [Nat]Added 24 Read/Feed constraints in 6 ms returned sat
[2025-06-01 07:23:27] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 14 ms.
[2025-06-01 07:23:27] [INFO ] Added : 10 causal constraints over 3 iterations in 67 ms. Result :sat
Minimization took 39 ms.
[2025-06-01 07:23:27] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:23:27] [INFO ] [Real]Absence check using state equation in 57 ms returned sat
[2025-06-01 07:23:27] [INFO ] [Real]Added 24 Read/Feed constraints in 8 ms returned sat
[2025-06-01 07:23:27] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:23:27] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:23:27] [INFO ] [Nat]Absence check using state equation in 56 ms returned sat
[2025-06-01 07:23:27] [INFO ] [Nat]Added 24 Read/Feed constraints in 8 ms returned sat
[2025-06-01 07:23:27] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 12 ms.
[2025-06-01 07:23:27] [INFO ] Added : 24 causal constraints over 6 iterations in 97 ms. Result :sat
Minimization took 46 ms.
[2025-06-01 07:23:27] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:23:27] [INFO ] [Real]Absence check using state equation in 55 ms returned sat
[2025-06-01 07:23:27] [INFO ] [Real]Added 24 Read/Feed constraints in 6 ms returned sat
[2025-06-01 07:23:27] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:23:27] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:23:28] [INFO ] [Nat]Absence check using state equation in 55 ms returned sat
[2025-06-01 07:23:28] [INFO ] [Nat]Added 24 Read/Feed constraints in 6 ms returned sat
[2025-06-01 07:23:28] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 15 ms.
[2025-06-01 07:23:28] [INFO ] Added : 6 causal constraints over 3 iterations in 64 ms. Result :sat
Minimization took 37 ms.
[2025-06-01 07:23:28] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:23:28] [INFO ] [Real]Absence check using state equation in 58 ms returned sat
[2025-06-01 07:23:28] [INFO ] [Real]Added 24 Read/Feed constraints in 7 ms returned sat
[2025-06-01 07:23:28] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:23:28] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:23:28] [INFO ] [Nat]Absence check using state equation in 58 ms returned sat
[2025-06-01 07:23:28] [INFO ] [Nat]Added 24 Read/Feed constraints in 7 ms returned sat
[2025-06-01 07:23:28] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 14 ms.
[2025-06-01 07:23:28] [INFO ] Added : 17 causal constraints over 5 iterations in 90 ms. Result :sat
Minimization took 42 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[369, 709, 1204, 671, 2815, 254] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[369, 709, 1204, 671, 2821, 254] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Support contains 6 out of 99 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 99/99 places, 246/246 transitions.
Applied a total of 0 rules in 6 ms. Remains 99 /99 variables (removed 0) and now considering 246/246 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 6 ms. Remains : 99/99 places, 246/246 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 99/99 places, 246/246 transitions.
Applied a total of 0 rules in 5 ms. Remains 99 /99 variables (removed 0) and now considering 246/246 (removed 0) transitions.
[2025-06-01 07:23:40] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
[2025-06-01 07:23:40] [INFO ] Invariant cache hit.
[2025-06-01 07:23:40] [INFO ] Implicit Places using invariants in 128 ms returned []
[2025-06-01 07:23:40] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
[2025-06-01 07:23:40] [INFO ] Invariant cache hit.
[2025-06-01 07:23:41] [INFO ] State equation strengthened by 24 read => feed constraints.
[2025-06-01 07:23:41] [INFO ] Implicit Places using invariants and state equation in 221 ms returned []
Implicit Place search using SMT with State Equation took 351 ms to find 0 implicit places.
[2025-06-01 07:23:41] [INFO ] Redundant transitions in 1 ms returned []
Running 244 sub problems to find dead transitions.
[2025-06-01 07:23:41] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
[2025-06-01 07:23:41] [INFO ] Invariant cache hit.
[2025-06-01 07:23:41] [INFO ] State equation strengthened by 24 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/99 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/99 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 2 (OVERLAPS) 155/254 variables, 99/102 constraints. Problems are: Problem set: 0 solved, 244 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/254 variables, 24/126 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/254 variables, 0/126 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 5 (OVERLAPS) 0/254 variables, 0/126 constraints. Problems are: Problem set: 0 solved, 244 unsolved
No progress, stopping.
After SMT solving in domain Real declared 254/254 variables, and 126 constraints, problems are : Problem set: 0 solved, 244 unsolved in 5451 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 99/99 constraints, ReadFeed: 24/24 constraints, PredecessorRefiner: 244/244 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 244 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/99 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/99 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 2 (OVERLAPS) 155/254 variables, 99/102 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/254 variables, 24/126 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/254 variables, 244/370 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/254 variables, 0/370 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 6 (OVERLAPS) 0/254 variables, 0/370 constraints. Problems are: Problem set: 0 solved, 244 unsolved
No progress, stopping.
After SMT solving in domain Int declared 254/254 variables, and 370 constraints, problems are : Problem set: 0 solved, 244 unsolved in 8634 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 99/99 constraints, ReadFeed: 24/24 constraints, PredecessorRefiner: 244/244 constraints, Known Traps: 0/0 constraints]
After SMT, in 14271ms problems are : Problem set: 0 solved, 244 unsolved
Search for dead transitions found 0 dead transitions in 14274ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 14637 ms. Remains : 99/99 places, 246/246 transitions.
[2025-06-01 07:23:55] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
Found an invariant !
This invariant on transitions {28=1, 35=1, 39=1, 77=1, 126=1, 154=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {24=1, 73=1, 106=1, 149=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 24 ms. (steps per millisecond=416 ) properties (out of 6) seen :[2, 3, 4, 3, 5, 4]
Current structural bounds on expressions (after cover walk) : Max Seen:[369, 709, 1204, 671, 2821, 254] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 07:23:55] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
[2025-06-01 07:23:55] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[369, 709, 1204, 671, 2821, 254] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000003 steps (2 resets) in 1445 ms. (691 steps per ms)
BEST_FIRST walk for 6000006 steps (12 resets) in 3888 ms. (1542 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[369, 709, 1204, 671, 2821, 254] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 07:24:00] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
[2025-06-01 07:24:00] [INFO ] Invariant cache hit.
[2025-06-01 07:24:01] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:24:01] [INFO ] [Real]Absence check using state equation in 79 ms returned sat
[2025-06-01 07:24:01] [INFO ] State equation strengthened by 24 read => feed constraints.
[2025-06-01 07:24:01] [INFO ] [Real]Added 24 Read/Feed constraints in 10 ms returned sat
[2025-06-01 07:24:01] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:24:01] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:24:01] [INFO ] [Nat]Absence check using state equation in 72 ms returned sat
[2025-06-01 07:24:01] [INFO ] [Nat]Added 24 Read/Feed constraints in 15 ms returned sat
[2025-06-01 07:24:01] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 19 ms.
[2025-06-01 07:24:01] [INFO ] Added : 25 causal constraints over 7 iterations in 168 ms. Result :sat
Minimization took 67 ms.
[2025-06-01 07:24:01] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:24:01] [INFO ] [Real]Absence check using state equation in 81 ms returned sat
[2025-06-01 07:24:01] [INFO ] [Real]Added 24 Read/Feed constraints in 6 ms returned sat
[2025-06-01 07:24:01] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:24:01] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:24:01] [INFO ] [Nat]Absence check using state equation in 80 ms returned sat
[2025-06-01 07:24:01] [INFO ] [Nat]Added 24 Read/Feed constraints in 8 ms returned sat
[2025-06-01 07:24:01] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 21 ms.
[2025-06-01 07:24:02] [INFO ] Added : 24 causal constraints over 6 iterations in 156 ms. Result :sat
Minimization took 75 ms.
[2025-06-01 07:24:02] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:24:02] [INFO ] [Real]Absence check using state equation in 79 ms returned sat
[2025-06-01 07:24:02] [INFO ] [Real]Added 24 Read/Feed constraints in 10 ms returned sat
[2025-06-01 07:24:02] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:24:02] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:24:02] [INFO ] [Nat]Absence check using state equation in 78 ms returned sat
[2025-06-01 07:24:02] [INFO ] [Nat]Added 24 Read/Feed constraints in 10 ms returned sat
[2025-06-01 07:24:02] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 21 ms.
[2025-06-01 07:24:02] [INFO ] Added : 10 causal constraints over 3 iterations in 111 ms. Result :sat
Minimization took 61 ms.
[2025-06-01 07:24:02] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:24:02] [INFO ] [Real]Absence check using state equation in 79 ms returned sat
[2025-06-01 07:24:02] [INFO ] [Real]Added 24 Read/Feed constraints in 10 ms returned sat
[2025-06-01 07:24:02] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:24:02] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:24:02] [INFO ] [Nat]Absence check using state equation in 78 ms returned sat
[2025-06-01 07:24:02] [INFO ] [Nat]Added 24 Read/Feed constraints in 16 ms returned sat
[2025-06-01 07:24:03] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 20 ms.
[2025-06-01 07:24:03] [INFO ] Added : 24 causal constraints over 6 iterations in 150 ms. Result :sat
Minimization took 70 ms.
[2025-06-01 07:24:03] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:24:03] [INFO ] [Real]Absence check using state equation in 104 ms returned sat
[2025-06-01 07:24:03] [INFO ] [Real]Added 24 Read/Feed constraints in 9 ms returned sat
[2025-06-01 07:24:03] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:24:03] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:24:03] [INFO ] [Nat]Absence check using state equation in 76 ms returned sat
[2025-06-01 07:24:03] [INFO ] [Nat]Added 24 Read/Feed constraints in 10 ms returned sat
[2025-06-01 07:24:03] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 25 ms.
[2025-06-01 07:24:03] [INFO ] Added : 6 causal constraints over 3 iterations in 97 ms. Result :sat
Minimization took 56 ms.
[2025-06-01 07:24:03] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:24:03] [INFO ] [Real]Absence check using state equation in 90 ms returned sat
[2025-06-01 07:24:03] [INFO ] [Real]Added 24 Read/Feed constraints in 15 ms returned sat
[2025-06-01 07:24:03] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:24:04] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:24:04] [INFO ] [Nat]Absence check using state equation in 83 ms returned sat
[2025-06-01 07:24:04] [INFO ] [Nat]Added 24 Read/Feed constraints in 9 ms returned sat
[2025-06-01 07:24:04] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 21 ms.
[2025-06-01 07:24:04] [INFO ] Added : 17 causal constraints over 5 iterations in 137 ms. Result :sat
Minimization took 69 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[369, 709, 1204, 671, 2821, 254] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[369, 709, 1204, 671, 2824, 264] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Support contains 6 out of 99 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 99/99 places, 246/246 transitions.
Applied a total of 0 rules in 5 ms. Remains 99 /99 variables (removed 0) and now considering 246/246 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 7 ms. Remains : 99/99 places, 246/246 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 99/99 places, 246/246 transitions.
Applied a total of 0 rules in 6 ms. Remains 99 /99 variables (removed 0) and now considering 246/246 (removed 0) transitions.
[2025-06-01 07:24:15] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
[2025-06-01 07:24:15] [INFO ] Invariant cache hit.
[2025-06-01 07:24:15] [INFO ] Implicit Places using invariants in 158 ms returned []
[2025-06-01 07:24:15] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
[2025-06-01 07:24:15] [INFO ] Invariant cache hit.
[2025-06-01 07:24:15] [INFO ] State equation strengthened by 24 read => feed constraints.
[2025-06-01 07:24:16] [INFO ] Implicit Places using invariants and state equation in 326 ms returned []
Implicit Place search using SMT with State Equation took 495 ms to find 0 implicit places.
[2025-06-01 07:24:16] [INFO ] Redundant transitions in 1 ms returned []
Running 244 sub problems to find dead transitions.
[2025-06-01 07:24:16] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
[2025-06-01 07:24:16] [INFO ] Invariant cache hit.
[2025-06-01 07:24:16] [INFO ] State equation strengthened by 24 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/99 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/99 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 2 (OVERLAPS) 155/254 variables, 99/102 constraints. Problems are: Problem set: 0 solved, 244 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/254 variables, 24/126 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/254 variables, 0/126 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 5 (OVERLAPS) 0/254 variables, 0/126 constraints. Problems are: Problem set: 0 solved, 244 unsolved
No progress, stopping.
After SMT solving in domain Real declared 254/254 variables, and 126 constraints, problems are : Problem set: 0 solved, 244 unsolved in 5069 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 99/99 constraints, ReadFeed: 24/24 constraints, PredecessorRefiner: 244/244 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 244 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/99 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/99 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 2 (OVERLAPS) 155/254 variables, 99/102 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/254 variables, 24/126 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/254 variables, 244/370 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/254 variables, 0/370 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 6 (OVERLAPS) 0/254 variables, 0/370 constraints. Problems are: Problem set: 0 solved, 244 unsolved
No progress, stopping.
After SMT solving in domain Int declared 254/254 variables, and 370 constraints, problems are : Problem set: 0 solved, 244 unsolved in 8152 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 99/99 constraints, ReadFeed: 24/24 constraints, PredecessorRefiner: 244/244 constraints, Known Traps: 0/0 constraints]
After SMT, in 13507ms problems are : Problem set: 0 solved, 244 unsolved
Search for dead transitions found 0 dead transitions in 13513ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 14024 ms. Remains : 99/99 places, 246/246 transitions.
[2025-06-01 07:24:29] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
Found an invariant !
This invariant on transitions {28=1, 35=1, 39=1, 77=1, 126=1, 154=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {24=1, 73=1, 106=1, 149=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 38 ms. (steps per millisecond=263 ) properties (out of 6) seen :[3, 6, 4, 3, 4, 2]
Current structural bounds on expressions (after cover walk) : Max Seen:[369, 709, 1204, 671, 2824, 264] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 07:24:29] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
[2025-06-01 07:24:29] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[369, 709, 1204, 671, 2824, 264] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 1788 ms. (558 steps per ms)
BEST_FIRST walk for 6000006 steps (12 resets) in 3426 ms. (1750 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[369, 1345, 1204, 671, 2824, 264] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 07:24:35] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
[2025-06-01 07:24:35] [INFO ] Invariant cache hit.
[2025-06-01 07:24:35] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:24:35] [INFO ] [Real]Absence check using state equation in 51 ms returned sat
[2025-06-01 07:24:35] [INFO ] State equation strengthened by 24 read => feed constraints.
[2025-06-01 07:24:35] [INFO ] [Real]Added 24 Read/Feed constraints in 7 ms returned sat
[2025-06-01 07:24:35] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:24:35] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:24:35] [INFO ] [Nat]Absence check using state equation in 54 ms returned sat
[2025-06-01 07:24:35] [INFO ] [Nat]Added 24 Read/Feed constraints in 7 ms returned sat
[2025-06-01 07:24:35] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 13 ms.
[2025-06-01 07:24:35] [INFO ] Added : 25 causal constraints over 7 iterations in 103 ms. Result :sat
Minimization took 42 ms.
[2025-06-01 07:24:35] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:24:35] [INFO ] [Real]Absence check using state equation in 50 ms returned sat
[2025-06-01 07:24:35] [INFO ] [Real]Added 24 Read/Feed constraints in 4 ms returned sat
[2025-06-01 07:24:35] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:24:35] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:24:35] [INFO ] [Nat]Absence check using state equation in 51 ms returned sat
[2025-06-01 07:24:35] [INFO ] [Nat]Added 24 Read/Feed constraints in 6 ms returned sat
[2025-06-01 07:24:35] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 13 ms.
[2025-06-01 07:24:35] [INFO ] Added : 24 causal constraints over 6 iterations in 99 ms. Result :sat
Minimization took 40 ms.
[2025-06-01 07:24:35] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:24:35] [INFO ] [Real]Absence check using state equation in 66 ms returned sat
[2025-06-01 07:24:35] [INFO ] [Real]Added 24 Read/Feed constraints in 6 ms returned sat
[2025-06-01 07:24:35] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:24:35] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:24:35] [INFO ] [Nat]Absence check using state equation in 74 ms returned sat
[2025-06-01 07:24:35] [INFO ] [Nat]Added 24 Read/Feed constraints in 10 ms returned sat
[2025-06-01 07:24:36] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 17 ms.
[2025-06-01 07:24:36] [INFO ] Added : 10 causal constraints over 3 iterations in 91 ms. Result :sat
Minimization took 62 ms.
[2025-06-01 07:24:36] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 07:24:36] [INFO ] [Real]Absence check using state equation in 81 ms returned sat
[2025-06-01 07:24:36] [INFO ] [Real]Added 24 Read/Feed constraints in 10 ms returned sat
[2025-06-01 07:24:36] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:24:36] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 07:24:36] [INFO ] [Nat]Absence check using state equation in 84 ms returned sat
[2025-06-01 07:24:36] [INFO ] [Nat]Added 24 Read/Feed constraints in 11 ms returned sat
[2025-06-01 07:24:36] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 20 ms.
[2025-06-01 07:24:36] [INFO ] Added : 24 causal constraints over 6 iterations in 150 ms. Result :sat
Minimization took 69 ms.
[2025-06-01 07:24:36] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:24:36] [INFO ] [Real]Absence check using state equation in 82 ms returned sat
[2025-06-01 07:24:36] [INFO ] [Real]Added 24 Read/Feed constraints in 9 ms returned sat
[2025-06-01 07:24:36] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:24:36] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 07:24:36] [INFO ] [Nat]Absence check using state equation in 77 ms returned sat
[2025-06-01 07:24:37] [INFO ] [Nat]Added 24 Read/Feed constraints in 8 ms returned sat
[2025-06-01 07:24:37] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 18 ms.
[2025-06-01 07:24:37] [INFO ] Added : 6 causal constraints over 3 iterations in 91 ms. Result :sat
Minimization took 54 ms.
[2025-06-01 07:24:37] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:24:37] [INFO ] [Real]Absence check using state equation in 70 ms returned sat
[2025-06-01 07:24:37] [INFO ] [Real]Added 24 Read/Feed constraints in 8 ms returned sat
[2025-06-01 07:24:37] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:24:37] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:24:37] [INFO ] [Nat]Absence check using state equation in 51 ms returned sat
[2025-06-01 07:24:37] [INFO ] [Nat]Added 24 Read/Feed constraints in 6 ms returned sat
[2025-06-01 07:24:37] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 13 ms.
[2025-06-01 07:24:37] [INFO ] Added : 17 causal constraints over 5 iterations in 83 ms. Result :sat
Minimization took 39 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[369, 1345, 1204, 671, 2824, 264] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[369, 1345, 1204, 671, 2827, 264] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Support contains 6 out of 99 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 99/99 places, 246/246 transitions.
Applied a total of 0 rules in 6 ms. Remains 99 /99 variables (removed 0) and now considering 246/246 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 6 ms. Remains : 99/99 places, 246/246 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 99/99 places, 246/246 transitions.
Applied a total of 0 rules in 9 ms. Remains 99 /99 variables (removed 0) and now considering 246/246 (removed 0) transitions.
[2025-06-01 07:24:50] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
[2025-06-01 07:24:50] [INFO ] Invariant cache hit.
[2025-06-01 07:24:50] [INFO ] Implicit Places using invariants in 117 ms returned []
[2025-06-01 07:24:50] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
[2025-06-01 07:24:50] [INFO ] Invariant cache hit.
[2025-06-01 07:24:50] [INFO ] State equation strengthened by 24 read => feed constraints.
[2025-06-01 07:24:51] [INFO ] Implicit Places using invariants and state equation in 300 ms returned []
Implicit Place search using SMT with State Equation took 423 ms to find 0 implicit places.
[2025-06-01 07:24:51] [INFO ] Redundant transitions in 1 ms returned []
Running 244 sub problems to find dead transitions.
[2025-06-01 07:24:51] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
[2025-06-01 07:24:51] [INFO ] Invariant cache hit.
[2025-06-01 07:24:51] [INFO ] State equation strengthened by 24 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/99 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/99 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 2 (OVERLAPS) 155/254 variables, 99/102 constraints. Problems are: Problem set: 0 solved, 244 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/254 variables, 24/126 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/254 variables, 0/126 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 5 (OVERLAPS) 0/254 variables, 0/126 constraints. Problems are: Problem set: 0 solved, 244 unsolved
No progress, stopping.
After SMT solving in domain Real declared 254/254 variables, and 126 constraints, problems are : Problem set: 0 solved, 244 unsolved in 7926 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 99/99 constraints, ReadFeed: 24/24 constraints, PredecessorRefiner: 244/244 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 244 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/99 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/99 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 2 (OVERLAPS) 155/254 variables, 99/102 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/254 variables, 24/126 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/254 variables, 244/370 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/254 variables, 0/370 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 6 (OVERLAPS) 0/254 variables, 0/370 constraints. Problems are: Problem set: 0 solved, 244 unsolved
No progress, stopping.
After SMT solving in domain Int declared 254/254 variables, and 370 constraints, problems are : Problem set: 0 solved, 244 unsolved in 10283 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 99/99 constraints, ReadFeed: 24/24 constraints, PredecessorRefiner: 244/244 constraints, Known Traps: 0/0 constraints]
After SMT, in 18496ms problems are : Problem set: 0 solved, 244 unsolved
Search for dead transitions found 0 dead transitions in 18501ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 18949 ms. Remains : 99/99 places, 246/246 transitions.
[2025-06-01 07:25:09] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
Found an invariant !
This invariant on transitions {28=1, 35=1, 39=1, 77=1, 126=1, 154=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {24=1, 73=1, 106=1, 149=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 25 ms. (steps per millisecond=400 ) properties (out of 6) seen :[2, 5, 3, 2, 0, 0]
Current structural bounds on expressions (after cover walk) : Max Seen:[369, 1345, 1204, 671, 2827, 264] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 07:25:09] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
[2025-06-01 07:25:09] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[369, 1345, 1204, 671, 2827, 264] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 1464 ms. (682 steps per ms)
BEST_FIRST walk for 6000006 steps (12 resets) in 3266 ms. (1836 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[369, 1345, 1204, 671, 2827, 264] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 07:25:14] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
[2025-06-01 07:25:14] [INFO ] Invariant cache hit.
[2025-06-01 07:25:14] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:25:14] [INFO ] [Real]Absence check using state equation in 83 ms returned sat
[2025-06-01 07:25:14] [INFO ] State equation strengthened by 24 read => feed constraints.
[2025-06-01 07:25:14] [INFO ] [Real]Added 24 Read/Feed constraints in 12 ms returned sat
[2025-06-01 07:25:14] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:25:14] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:25:14] [INFO ] [Nat]Absence check using state equation in 70 ms returned sat
[2025-06-01 07:25:14] [INFO ] [Nat]Added 24 Read/Feed constraints in 10 ms returned sat
[2025-06-01 07:25:14] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 15 ms.
[2025-06-01 07:25:15] [INFO ] Added : 25 causal constraints over 7 iterations in 143 ms. Result :sat
Minimization took 72 ms.
[2025-06-01 07:25:15] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:25:15] [INFO ] [Real]Absence check using state equation in 60 ms returned sat
[2025-06-01 07:25:15] [INFO ] [Real]Added 24 Read/Feed constraints in 7 ms returned sat
[2025-06-01 07:25:15] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:25:15] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:25:15] [INFO ] [Nat]Absence check using state equation in 81 ms returned sat
[2025-06-01 07:25:15] [INFO ] [Nat]Added 24 Read/Feed constraints in 8 ms returned sat
[2025-06-01 07:25:15] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 22 ms.
[2025-06-01 07:25:15] [INFO ] Added : 24 causal constraints over 6 iterations in 158 ms. Result :sat
Minimization took 68 ms.
[2025-06-01 07:25:15] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:25:15] [INFO ] [Real]Absence check using state equation in 84 ms returned sat
[2025-06-01 07:25:15] [INFO ] [Real]Added 24 Read/Feed constraints in 10 ms returned sat
[2025-06-01 07:25:15] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:25:15] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 07:25:15] [INFO ] [Nat]Absence check using state equation in 80 ms returned sat
[2025-06-01 07:25:15] [INFO ] [Nat]Added 24 Read/Feed constraints in 10 ms returned sat
[2025-06-01 07:25:15] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 21 ms.
[2025-06-01 07:25:16] [INFO ] Added : 10 causal constraints over 3 iterations in 102 ms. Result :sat
Minimization took 60 ms.
[2025-06-01 07:25:16] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:25:16] [INFO ] [Real]Absence check using state equation in 87 ms returned sat
[2025-06-01 07:25:16] [INFO ] [Real]Added 24 Read/Feed constraints in 10 ms returned sat
[2025-06-01 07:25:16] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:25:16] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 07:25:16] [INFO ] [Nat]Absence check using state equation in 76 ms returned sat
[2025-06-01 07:25:16] [INFO ] [Nat]Added 24 Read/Feed constraints in 10 ms returned sat
[2025-06-01 07:25:16] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 21 ms.
[2025-06-01 07:25:16] [INFO ] Added : 24 causal constraints over 6 iterations in 155 ms. Result :sat
Minimization took 71 ms.
[2025-06-01 07:25:16] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:25:16] [INFO ] [Real]Absence check using state equation in 70 ms returned sat
[2025-06-01 07:25:16] [INFO ] [Real]Added 24 Read/Feed constraints in 8 ms returned sat
[2025-06-01 07:25:16] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:25:16] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:25:16] [INFO ] [Nat]Absence check using state equation in 45 ms returned sat
[2025-06-01 07:25:16] [INFO ] [Nat]Added 24 Read/Feed constraints in 6 ms returned sat
[2025-06-01 07:25:16] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 13 ms.
[2025-06-01 07:25:16] [INFO ] Added : 6 causal constraints over 3 iterations in 57 ms. Result :sat
Minimization took 34 ms.
[2025-06-01 07:25:17] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 07:25:17] [INFO ] [Real]Absence check using state equation in 79 ms returned sat
[2025-06-01 07:25:17] [INFO ] [Real]Added 24 Read/Feed constraints in 8 ms returned sat
[2025-06-01 07:25:17] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:25:17] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 07:25:17] [INFO ] [Nat]Absence check using state equation in 78 ms returned sat
[2025-06-01 07:25:17] [INFO ] [Nat]Added 24 Read/Feed constraints in 11 ms returned sat
[2025-06-01 07:25:17] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 21 ms.
[2025-06-01 07:25:17] [INFO ] Added : 17 causal constraints over 5 iterations in 136 ms. Result :sat
Minimization took 65 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[369, 1345, 1204, 671, 2827, 264] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[369, 1345, 1204, 671, 2833, 264] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Support contains 6 out of 99 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 99/99 places, 246/246 transitions.
Applied a total of 0 rules in 6 ms. Remains 99 /99 variables (removed 0) and now considering 246/246 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 7 ms. Remains : 99/99 places, 246/246 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 99/99 places, 246/246 transitions.
Applied a total of 0 rules in 5 ms. Remains 99 /99 variables (removed 0) and now considering 246/246 (removed 0) transitions.
[2025-06-01 07:25:32] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
[2025-06-01 07:25:32] [INFO ] Invariant cache hit.
[2025-06-01 07:25:32] [INFO ] Implicit Places using invariants in 134 ms returned []
[2025-06-01 07:25:32] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
[2025-06-01 07:25:32] [INFO ] Invariant cache hit.
[2025-06-01 07:25:32] [INFO ] State equation strengthened by 24 read => feed constraints.
[2025-06-01 07:25:32] [INFO ] Implicit Places using invariants and state equation in 316 ms returned []
Implicit Place search using SMT with State Equation took 458 ms to find 0 implicit places.
[2025-06-01 07:25:32] [INFO ] Redundant transitions in 1 ms returned []
Running 244 sub problems to find dead transitions.
[2025-06-01 07:25:32] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
[2025-06-01 07:25:32] [INFO ] Invariant cache hit.
[2025-06-01 07:25:32] [INFO ] State equation strengthened by 24 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/99 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/99 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 2 (OVERLAPS) 155/254 variables, 99/102 constraints. Problems are: Problem set: 0 solved, 244 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/254 variables, 24/126 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/254 variables, 0/126 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 5 (OVERLAPS) 0/254 variables, 0/126 constraints. Problems are: Problem set: 0 solved, 244 unsolved
No progress, stopping.
After SMT solving in domain Real declared 254/254 variables, and 126 constraints, problems are : Problem set: 0 solved, 244 unsolved in 7779 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 99/99 constraints, ReadFeed: 24/24 constraints, PredecessorRefiner: 244/244 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 244 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/99 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/99 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 2 (OVERLAPS) 155/254 variables, 99/102 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/254 variables, 24/126 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/254 variables, 244/370 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/254 variables, 0/370 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 6 (OVERLAPS) 0/254 variables, 0/370 constraints. Problems are: Problem set: 0 solved, 244 unsolved
No progress, stopping.
After SMT solving in domain Int declared 254/254 variables, and 370 constraints, problems are : Problem set: 0 solved, 244 unsolved in 9476 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 99/99 constraints, ReadFeed: 24/24 constraints, PredecessorRefiner: 244/244 constraints, Known Traps: 0/0 constraints]
After SMT, in 17581ms problems are : Problem set: 0 solved, 244 unsolved
Search for dead transitions found 0 dead transitions in 17586ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 18060 ms. Remains : 99/99 places, 246/246 transitions.
[2025-06-01 07:25:50] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
Found an invariant !
This invariant on transitions {28=1, 35=1, 39=1, 77=1, 126=1, 154=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {24=1, 73=1, 106=1, 149=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 23 ms. (steps per millisecond=434 ) properties (out of 6) seen :[4, 11, 5, 2, 0, 0]
Current structural bounds on expressions (after cover walk) : Max Seen:[369, 1345, 1204, 671, 2833, 264] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 07:25:50] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
[2025-06-01 07:25:50] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[369, 1345, 1204, 671, 2833, 264] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 1362 ms. (733 steps per ms)
BEST_FIRST walk for 6000005 steps (12 resets) in 3322 ms. (1805 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[369, 1345, 1204, 671, 2833, 264] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 07:25:54] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
[2025-06-01 07:25:54] [INFO ] Invariant cache hit.
[2025-06-01 07:25:55] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:25:55] [INFO ] [Real]Absence check using state equation in 52 ms returned sat
[2025-06-01 07:25:55] [INFO ] State equation strengthened by 24 read => feed constraints.
[2025-06-01 07:25:55] [INFO ] [Real]Added 24 Read/Feed constraints in 7 ms returned sat
[2025-06-01 07:25:55] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:25:55] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:25:55] [INFO ] [Nat]Absence check using state equation in 53 ms returned sat
[2025-06-01 07:25:55] [INFO ] [Nat]Added 24 Read/Feed constraints in 6 ms returned sat
[2025-06-01 07:25:55] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 14 ms.
[2025-06-01 07:25:55] [INFO ] Added : 25 causal constraints over 7 iterations in 110 ms. Result :sat
Minimization took 45 ms.
[2025-06-01 07:25:55] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:25:55] [INFO ] [Real]Absence check using state equation in 53 ms returned sat
[2025-06-01 07:25:55] [INFO ] [Real]Added 24 Read/Feed constraints in 5 ms returned sat
[2025-06-01 07:25:55] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:25:55] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:25:55] [INFO ] [Nat]Absence check using state equation in 51 ms returned sat
[2025-06-01 07:25:55] [INFO ] [Nat]Added 24 Read/Feed constraints in 6 ms returned sat
[2025-06-01 07:25:55] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 13 ms.
[2025-06-01 07:25:55] [INFO ] Added : 24 causal constraints over 6 iterations in 97 ms. Result :sat
Minimization took 43 ms.
[2025-06-01 07:25:55] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:25:55] [INFO ] [Real]Absence check using state equation in 51 ms returned sat
[2025-06-01 07:25:55] [INFO ] [Real]Added 24 Read/Feed constraints in 6 ms returned sat
[2025-06-01 07:25:55] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:25:55] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:25:55] [INFO ] [Nat]Absence check using state equation in 52 ms returned sat
[2025-06-01 07:25:55] [INFO ] [Nat]Added 24 Read/Feed constraints in 6 ms returned sat
[2025-06-01 07:25:55] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 14 ms.
[2025-06-01 07:25:55] [INFO ] Added : 10 causal constraints over 3 iterations in 66 ms. Result :sat
Minimization took 37 ms.
[2025-06-01 07:25:56] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:25:56] [INFO ] [Real]Absence check using state equation in 53 ms returned sat
[2025-06-01 07:25:56] [INFO ] [Real]Added 24 Read/Feed constraints in 6 ms returned sat
[2025-06-01 07:25:56] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:25:56] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:25:56] [INFO ] [Nat]Absence check using state equation in 53 ms returned sat
[2025-06-01 07:25:56] [INFO ] [Nat]Added 24 Read/Feed constraints in 7 ms returned sat
[2025-06-01 07:25:56] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 13 ms.
[2025-06-01 07:25:56] [INFO ] Added : 24 causal constraints over 6 iterations in 92 ms. Result :sat
Minimization took 41 ms.
[2025-06-01 07:25:56] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:25:56] [INFO ] [Real]Absence check using state equation in 53 ms returned sat
[2025-06-01 07:25:56] [INFO ] [Real]Added 24 Read/Feed constraints in 6 ms returned sat
[2025-06-01 07:25:56] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:25:56] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:25:56] [INFO ] [Nat]Absence check using state equation in 54 ms returned sat
[2025-06-01 07:25:56] [INFO ] [Nat]Added 24 Read/Feed constraints in 6 ms returned sat
[2025-06-01 07:25:56] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 14 ms.
[2025-06-01 07:25:56] [INFO ] Added : 6 causal constraints over 3 iterations in 60 ms. Result :sat
Minimization took 35 ms.
[2025-06-01 07:25:56] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:25:56] [INFO ] [Real]Absence check using state equation in 54 ms returned sat
[2025-06-01 07:25:56] [INFO ] [Real]Added 24 Read/Feed constraints in 6 ms returned sat
[2025-06-01 07:25:56] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:25:56] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:25:56] [INFO ] [Nat]Absence check using state equation in 52 ms returned sat
[2025-06-01 07:25:56] [INFO ] [Nat]Added 24 Read/Feed constraints in 6 ms returned sat
[2025-06-01 07:25:56] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 13 ms.
[2025-06-01 07:25:56] [INFO ] Added : 17 causal constraints over 5 iterations in 86 ms. Result :sat
Minimization took 44 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[369, 1345, 1204, 671, 2833, 264] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[369, 1345, 1204, 671, 2841, 264] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Support contains 6 out of 99 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 99/99 places, 246/246 transitions.
Applied a total of 0 rules in 7 ms. Remains 99 /99 variables (removed 0) and now considering 246/246 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 7 ms. Remains : 99/99 places, 246/246 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 99/99 places, 246/246 transitions.
Applied a total of 0 rules in 5 ms. Remains 99 /99 variables (removed 0) and now considering 246/246 (removed 0) transitions.
[2025-06-01 07:26:10] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
[2025-06-01 07:26:10] [INFO ] Invariant cache hit.
[2025-06-01 07:26:10] [INFO ] Implicit Places using invariants in 139 ms returned []
[2025-06-01 07:26:10] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
[2025-06-01 07:26:10] [INFO ] Invariant cache hit.
[2025-06-01 07:26:11] [INFO ] State equation strengthened by 24 read => feed constraints.
[2025-06-01 07:26:11] [INFO ] Implicit Places using invariants and state equation in 249 ms returned []
Implicit Place search using SMT with State Equation took 390 ms to find 0 implicit places.
[2025-06-01 07:26:11] [INFO ] Redundant transitions in 1 ms returned []
Running 244 sub problems to find dead transitions.
[2025-06-01 07:26:11] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
[2025-06-01 07:26:11] [INFO ] Invariant cache hit.
[2025-06-01 07:26:11] [INFO ] State equation strengthened by 24 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/99 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/99 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 2 (OVERLAPS) 155/254 variables, 99/102 constraints. Problems are: Problem set: 0 solved, 244 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/254 variables, 24/126 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/254 variables, 0/126 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 5 (OVERLAPS) 0/254 variables, 0/126 constraints. Problems are: Problem set: 0 solved, 244 unsolved
No progress, stopping.
After SMT solving in domain Real declared 254/254 variables, and 126 constraints, problems are : Problem set: 0 solved, 244 unsolved in 6873 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 99/99 constraints, ReadFeed: 24/24 constraints, PredecessorRefiner: 244/244 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 244 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/99 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/99 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 2 (OVERLAPS) 155/254 variables, 99/102 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/254 variables, 24/126 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/254 variables, 244/370 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/254 variables, 0/370 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 6 (OVERLAPS) 0/254 variables, 0/370 constraints. Problems are: Problem set: 0 solved, 244 unsolved
No progress, stopping.
After SMT solving in domain Int declared 254/254 variables, and 370 constraints, problems are : Problem set: 0 solved, 244 unsolved in 12046 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 99/99 constraints, ReadFeed: 24/24 constraints, PredecessorRefiner: 244/244 constraints, Known Traps: 0/0 constraints]
After SMT, in 19106ms problems are : Problem set: 0 solved, 244 unsolved
Search for dead transitions found 0 dead transitions in 19108ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 19511 ms. Remains : 99/99 places, 246/246 transitions.
[2025-06-01 07:26:30] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
Found an invariant !
This invariant on transitions {28=1, 35=1, 39=1, 77=1, 126=1, 154=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {24=1, 73=1, 106=1, 149=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 39 ms. (steps per millisecond=256 ) properties (out of 6) seen :[3, 4, 4, 4, 5, 2]
Current structural bounds on expressions (after cover walk) : Max Seen:[369, 1345, 1204, 671, 2841, 264] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 07:26:30] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
[2025-06-01 07:26:30] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[369, 1345, 1204, 671, 2841, 264] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 1609 ms. (621 steps per ms)
BEST_FIRST walk for 6000004 steps (12 resets) in 3351 ms. (1789 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[753, 1345, 1204, 671, 2841, 285] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 07:26:35] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
[2025-06-01 07:26:35] [INFO ] Invariant cache hit.
[2025-06-01 07:26:35] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:26:35] [INFO ] [Real]Absence check using state equation in 73 ms returned sat
[2025-06-01 07:26:35] [INFO ] State equation strengthened by 24 read => feed constraints.
[2025-06-01 07:26:35] [INFO ] [Real]Added 24 Read/Feed constraints in 11 ms returned sat
[2025-06-01 07:26:35] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:26:35] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 07:26:35] [INFO ] [Nat]Absence check using state equation in 73 ms returned sat
[2025-06-01 07:26:35] [INFO ] [Nat]Added 24 Read/Feed constraints in 12 ms returned sat
[2025-06-01 07:26:35] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 21 ms.
[2025-06-01 07:26:35] [INFO ] Added : 25 causal constraints over 7 iterations in 170 ms. Result :sat
Minimization took 72 ms.
[2025-06-01 07:26:35] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 07:26:36] [INFO ] [Real]Absence check using state equation in 88 ms returned sat
[2025-06-01 07:26:36] [INFO ] [Real]Added 24 Read/Feed constraints in 8 ms returned sat
[2025-06-01 07:26:36] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:26:36] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 07:26:36] [INFO ] [Nat]Absence check using state equation in 83 ms returned sat
[2025-06-01 07:26:36] [INFO ] [Nat]Added 24 Read/Feed constraints in 10 ms returned sat
[2025-06-01 07:26:36] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 21 ms.
[2025-06-01 07:26:36] [INFO ] Added : 24 causal constraints over 6 iterations in 159 ms. Result :sat
Minimization took 68 ms.
[2025-06-01 07:26:36] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 07:26:36] [INFO ] [Real]Absence check using state equation in 85 ms returned sat
[2025-06-01 07:26:36] [INFO ] [Real]Added 24 Read/Feed constraints in 10 ms returned sat
[2025-06-01 07:26:36] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:26:36] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:26:36] [INFO ] [Nat]Absence check using state equation in 84 ms returned sat
[2025-06-01 07:26:36] [INFO ] [Nat]Added 24 Read/Feed constraints in 11 ms returned sat
[2025-06-01 07:26:36] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 22 ms.
[2025-06-01 07:26:36] [INFO ] Added : 10 causal constraints over 3 iterations in 104 ms. Result :sat
Minimization took 60 ms.
[2025-06-01 07:26:37] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 07:26:37] [INFO ] [Real]Absence check using state equation in 87 ms returned sat
[2025-06-01 07:26:37] [INFO ] [Real]Added 24 Read/Feed constraints in 11 ms returned sat
[2025-06-01 07:26:37] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:26:37] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 07:26:37] [INFO ] [Nat]Absence check using state equation in 86 ms returned sat
[2025-06-01 07:26:37] [INFO ] [Nat]Added 24 Read/Feed constraints in 18 ms returned sat
[2025-06-01 07:26:37] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 21 ms.
[2025-06-01 07:26:37] [INFO ] Added : 24 causal constraints over 6 iterations in 153 ms. Result :sat
Minimization took 70 ms.
[2025-06-01 07:26:37] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:26:37] [INFO ] [Real]Absence check using state equation in 82 ms returned sat
[2025-06-01 07:26:37] [INFO ] [Real]Added 24 Read/Feed constraints in 9 ms returned sat
[2025-06-01 07:26:37] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:26:37] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 07:26:37] [INFO ] [Nat]Absence check using state equation in 84 ms returned sat
[2025-06-01 07:26:37] [INFO ] [Nat]Added 24 Read/Feed constraints in 11 ms returned sat
[2025-06-01 07:26:37] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 23 ms.
[2025-06-01 07:26:37] [INFO ] Added : 6 causal constraints over 3 iterations in 97 ms. Result :sat
Minimization took 57 ms.
[2025-06-01 07:26:38] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 07:26:38] [INFO ] [Real]Absence check using state equation in 87 ms returned sat
[2025-06-01 07:26:38] [INFO ] [Real]Added 24 Read/Feed constraints in 10 ms returned sat
[2025-06-01 07:26:38] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:26:38] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:26:38] [INFO ] [Nat]Absence check using state equation in 92 ms returned sat
[2025-06-01 07:26:38] [INFO ] [Nat]Added 24 Read/Feed constraints in 12 ms returned sat
[2025-06-01 07:26:38] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 22 ms.
[2025-06-01 07:26:38] [INFO ] Added : 17 causal constraints over 5 iterations in 138 ms. Result :sat
Minimization took 67 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[753, 1345, 1204, 671, 2841, 285] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[753, 1345, 1204, 671, 2843, 285] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Support contains 6 out of 99 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 99/99 places, 246/246 transitions.
Applied a total of 0 rules in 5 ms. Remains 99 /99 variables (removed 0) and now considering 246/246 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 5 ms. Remains : 99/99 places, 246/246 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 99/99 places, 246/246 transitions.
Applied a total of 0 rules in 5 ms. Remains 99 /99 variables (removed 0) and now considering 246/246 (removed 0) transitions.
[2025-06-01 07:26:53] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
[2025-06-01 07:26:53] [INFO ] Invariant cache hit.
[2025-06-01 07:26:53] [INFO ] Implicit Places using invariants in 110 ms returned []
[2025-06-01 07:26:53] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
[2025-06-01 07:26:53] [INFO ] Invariant cache hit.
[2025-06-01 07:26:53] [INFO ] State equation strengthened by 24 read => feed constraints.
[2025-06-01 07:26:53] [INFO ] Implicit Places using invariants and state equation in 267 ms returned []
Implicit Place search using SMT with State Equation took 378 ms to find 0 implicit places.
[2025-06-01 07:26:53] [INFO ] Redundant transitions in 1 ms returned []
Running 244 sub problems to find dead transitions.
[2025-06-01 07:26:53] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
[2025-06-01 07:26:53] [INFO ] Invariant cache hit.
[2025-06-01 07:26:53] [INFO ] State equation strengthened by 24 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/99 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/99 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 2 (OVERLAPS) 155/254 variables, 99/102 constraints. Problems are: Problem set: 0 solved, 244 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/254 variables, 24/126 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/254 variables, 0/126 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 5 (OVERLAPS) 0/254 variables, 0/126 constraints. Problems are: Problem set: 0 solved, 244 unsolved
No progress, stopping.
After SMT solving in domain Real declared 254/254 variables, and 126 constraints, problems are : Problem set: 0 solved, 244 unsolved in 8053 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 99/99 constraints, ReadFeed: 24/24 constraints, PredecessorRefiner: 244/244 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 244 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/99 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/99 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 2 (OVERLAPS) 155/254 variables, 99/102 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/254 variables, 24/126 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/254 variables, 244/370 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/254 variables, 0/370 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 6 (OVERLAPS) 0/254 variables, 0/370 constraints. Problems are: Problem set: 0 solved, 244 unsolved
No progress, stopping.
After SMT solving in domain Int declared 254/254 variables, and 370 constraints, problems are : Problem set: 0 solved, 244 unsolved in 10735 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 99/99 constraints, ReadFeed: 24/24 constraints, PredecessorRefiner: 244/244 constraints, Known Traps: 0/0 constraints]
After SMT, in 19020ms problems are : Problem set: 0 solved, 244 unsolved
Search for dead transitions found 0 dead transitions in 19026ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 19419 ms. Remains : 99/99 places, 246/246 transitions.
[2025-06-01 07:27:12] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
Found an invariant !
This invariant on transitions {28=1, 35=1, 39=1, 77=1, 126=1, 154=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {24=1, 73=1, 106=1, 149=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 36 ms. (steps per millisecond=277 ) properties (out of 6) seen :[2, 5, 5, 3, 4, 2]
Current structural bounds on expressions (after cover walk) : Max Seen:[753, 1345, 1204, 671, 2843, 285] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 07:27:12] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
[2025-06-01 07:27:12] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[753, 1345, 1204, 671, 2843, 285] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 1974 ms. (506 steps per ms)
BEST_FIRST walk for 6000005 steps (12 resets) in 3821 ms. (1569 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[753, 1345, 1204, 671, 2843, 285] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 07:27:18] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
[2025-06-01 07:27:18] [INFO ] Invariant cache hit.
[2025-06-01 07:27:18] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:27:18] [INFO ] [Real]Absence check using state equation in 73 ms returned sat
[2025-06-01 07:27:18] [INFO ] State equation strengthened by 24 read => feed constraints.
[2025-06-01 07:27:18] [INFO ] [Real]Added 24 Read/Feed constraints in 12 ms returned sat
[2025-06-01 07:27:18] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:27:18] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 07:27:18] [INFO ] [Nat]Absence check using state equation in 85 ms returned sat
[2025-06-01 07:27:18] [INFO ] [Nat]Added 24 Read/Feed constraints in 12 ms returned sat
[2025-06-01 07:27:18] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 22 ms.
[2025-06-01 07:27:19] [INFO ] Added : 25 causal constraints over 7 iterations in 171 ms. Result :sat
Minimization took 71 ms.
[2025-06-01 07:27:19] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 07:27:19] [INFO ] [Real]Absence check using state equation in 81 ms returned sat
[2025-06-01 07:27:19] [INFO ] [Real]Added 24 Read/Feed constraints in 8 ms returned sat
[2025-06-01 07:27:19] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:27:19] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 07:27:19] [INFO ] [Nat]Absence check using state equation in 83 ms returned sat
[2025-06-01 07:27:19] [INFO ] [Nat]Added 24 Read/Feed constraints in 8 ms returned sat
[2025-06-01 07:27:19] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 21 ms.
[2025-06-01 07:27:19] [INFO ] Added : 24 causal constraints over 6 iterations in 158 ms. Result :sat
Minimization took 72 ms.
[2025-06-01 07:27:19] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 07:27:19] [INFO ] [Real]Absence check using state equation in 85 ms returned sat
[2025-06-01 07:27:19] [INFO ] [Real]Added 24 Read/Feed constraints in 10 ms returned sat
[2025-06-01 07:27:19] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:27:19] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 07:27:19] [INFO ] [Nat]Absence check using state equation in 81 ms returned sat
[2025-06-01 07:27:19] [INFO ] [Nat]Added 24 Read/Feed constraints in 10 ms returned sat
[2025-06-01 07:27:19] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 20 ms.
[2025-06-01 07:27:20] [INFO ] Added : 10 causal constraints over 3 iterations in 100 ms. Result :sat
Minimization took 61 ms.
[2025-06-01 07:27:20] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 07:27:20] [INFO ] [Real]Absence check using state equation in 81 ms returned sat
[2025-06-01 07:27:20] [INFO ] [Real]Added 24 Read/Feed constraints in 11 ms returned sat
[2025-06-01 07:27:20] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:27:20] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:27:20] [INFO ] [Nat]Absence check using state equation in 82 ms returned sat
[2025-06-01 07:27:20] [INFO ] [Nat]Added 24 Read/Feed constraints in 12 ms returned sat
[2025-06-01 07:27:20] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 19 ms.
[2025-06-01 07:27:20] [INFO ] Added : 24 causal constraints over 6 iterations in 145 ms. Result :sat
Minimization took 69 ms.
[2025-06-01 07:27:20] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 07:27:20] [INFO ] [Real]Absence check using state equation in 81 ms returned sat
[2025-06-01 07:27:20] [INFO ] [Real]Added 24 Read/Feed constraints in 8 ms returned sat
[2025-06-01 07:27:20] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:27:20] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 07:27:20] [INFO ] [Nat]Absence check using state equation in 79 ms returned sat
[2025-06-01 07:27:20] [INFO ] [Nat]Added 24 Read/Feed constraints in 8 ms returned sat
[2025-06-01 07:27:21] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 23 ms.
[2025-06-01 07:27:21] [INFO ] Added : 6 causal constraints over 3 iterations in 94 ms. Result :sat
Minimization took 57 ms.
[2025-06-01 07:27:21] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 07:27:21] [INFO ] [Real]Absence check using state equation in 85 ms returned sat
[2025-06-01 07:27:21] [INFO ] [Real]Added 24 Read/Feed constraints in 9 ms returned sat
[2025-06-01 07:27:21] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:27:21] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:27:21] [INFO ] [Nat]Absence check using state equation in 88 ms returned sat
[2025-06-01 07:27:21] [INFO ] [Nat]Added 24 Read/Feed constraints in 13 ms returned sat
[2025-06-01 07:27:21] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 21 ms.
[2025-06-01 07:27:21] [INFO ] Added : 17 causal constraints over 5 iterations in 136 ms. Result :sat
Minimization took 72 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[753, 1345, 1204, 671, 2843, 285] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[753, 1345, 1204, 671, 2849, 285] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Support contains 6 out of 99 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 99/99 places, 246/246 transitions.
Applied a total of 0 rules in 6 ms. Remains 99 /99 variables (removed 0) and now considering 246/246 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 6 ms. Remains : 99/99 places, 246/246 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 99/99 places, 246/246 transitions.
Applied a total of 0 rules in 16 ms. Remains 99 /99 variables (removed 0) and now considering 246/246 (removed 0) transitions.
[2025-06-01 07:27:36] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
[2025-06-01 07:27:36] [INFO ] Invariant cache hit.
[2025-06-01 07:27:36] [INFO ] Implicit Places using invariants in 118 ms returned []
[2025-06-01 07:27:36] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
[2025-06-01 07:27:36] [INFO ] Invariant cache hit.
[2025-06-01 07:27:36] [INFO ] State equation strengthened by 24 read => feed constraints.
[2025-06-01 07:27:37] [INFO ] Implicit Places using invariants and state equation in 237 ms returned []
Implicit Place search using SMT with State Equation took 356 ms to find 0 implicit places.
[2025-06-01 07:27:37] [INFO ] Redundant transitions in 1 ms returned []
Running 244 sub problems to find dead transitions.
[2025-06-01 07:27:37] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
[2025-06-01 07:27:37] [INFO ] Invariant cache hit.
[2025-06-01 07:27:37] [INFO ] State equation strengthened by 24 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/99 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/99 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 2 (OVERLAPS) 155/254 variables, 99/102 constraints. Problems are: Problem set: 0 solved, 244 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/254 variables, 24/126 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/254 variables, 0/126 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 5 (OVERLAPS) 0/254 variables, 0/126 constraints. Problems are: Problem set: 0 solved, 244 unsolved
No progress, stopping.
After SMT solving in domain Real declared 254/254 variables, and 126 constraints, problems are : Problem set: 0 solved, 244 unsolved in 6483 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 99/99 constraints, ReadFeed: 24/24 constraints, PredecessorRefiner: 244/244 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 244 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/99 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/99 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 2 (OVERLAPS) 155/254 variables, 99/102 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/254 variables, 24/126 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/254 variables, 244/370 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/254 variables, 0/370 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 6 (OVERLAPS) 0/254 variables, 0/370 constraints. Problems are: Problem set: 0 solved, 244 unsolved
No progress, stopping.
After SMT solving in domain Int declared 254/254 variables, and 370 constraints, problems are : Problem set: 0 solved, 244 unsolved in 8277 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 99/99 constraints, ReadFeed: 24/24 constraints, PredecessorRefiner: 244/244 constraints, Known Traps: 0/0 constraints]
After SMT, in 14931ms problems are : Problem set: 0 solved, 244 unsolved
Search for dead transitions found 0 dead transitions in 14934ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 15312 ms. Remains : 99/99 places, 246/246 transitions.
[2025-06-01 07:27:51] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
Found an invariant !
This invariant on transitions {28=1, 35=1, 39=1, 77=1, 126=1, 154=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {24=1, 73=1, 106=1, 149=1}
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 6) seen :[3, 5, 3, 3, 4, 2]
Current structural bounds on expressions (after cover walk) : Max Seen:[753, 1345, 1204, 671, 2849, 285] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 07:27:52] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
[2025-06-01 07:27:52] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[753, 1345, 1204, 671, 2849, 285] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 1318 ms. (758 steps per ms)
BEST_FIRST walk for 6000005 steps (12 resets) in 3471 ms. (1728 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[753, 1345, 1204, 842, 2849, 285] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 07:27:56] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
[2025-06-01 07:27:56] [INFO ] Invariant cache hit.
[2025-06-01 07:27:56] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:27:56] [INFO ] [Real]Absence check using state equation in 54 ms returned sat
[2025-06-01 07:27:56] [INFO ] State equation strengthened by 24 read => feed constraints.
[2025-06-01 07:27:56] [INFO ] [Real]Added 24 Read/Feed constraints in 7 ms returned sat
[2025-06-01 07:27:56] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:27:56] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:27:57] [INFO ] [Nat]Absence check using state equation in 57 ms returned sat
[2025-06-01 07:27:57] [INFO ] [Nat]Added 24 Read/Feed constraints in 11 ms returned sat
[2025-06-01 07:27:57] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 13 ms.
[2025-06-01 07:27:57] [INFO ] Added : 25 causal constraints over 7 iterations in 109 ms. Result :sat
Minimization took 45 ms.
[2025-06-01 07:27:57] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:27:57] [INFO ] [Real]Absence check using state equation in 55 ms returned sat
[2025-06-01 07:27:57] [INFO ] [Real]Added 24 Read/Feed constraints in 5 ms returned sat
[2025-06-01 07:27:57] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:27:57] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:27:57] [INFO ] [Nat]Absence check using state equation in 53 ms returned sat
[2025-06-01 07:27:57] [INFO ] [Nat]Added 24 Read/Feed constraints in 6 ms returned sat
[2025-06-01 07:27:57] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 13 ms.
[2025-06-01 07:27:57] [INFO ] Added : 24 causal constraints over 6 iterations in 103 ms. Result :sat
Minimization took 45 ms.
[2025-06-01 07:27:57] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:27:57] [INFO ] [Real]Absence check using state equation in 62 ms returned sat
[2025-06-01 07:27:57] [INFO ] [Real]Added 24 Read/Feed constraints in 7 ms returned sat
[2025-06-01 07:27:57] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:27:57] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:27:57] [INFO ] [Nat]Absence check using state equation in 63 ms returned sat
[2025-06-01 07:27:57] [INFO ] [Nat]Added 24 Read/Feed constraints in 7 ms returned sat
[2025-06-01 07:27:57] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 21 ms.
[2025-06-01 07:27:57] [INFO ] Added : 10 causal constraints over 3 iterations in 82 ms. Result :sat
Minimization took 37 ms.
[2025-06-01 07:27:57] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:27:58] [INFO ] [Real]Absence check using state equation in 67 ms returned sat
[2025-06-01 07:27:58] [INFO ] [Real]Added 24 Read/Feed constraints in 7 ms returned sat
[2025-06-01 07:27:58] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:27:58] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:27:58] [INFO ] [Nat]Absence check using state equation in 64 ms returned sat
[2025-06-01 07:27:58] [INFO ] [Nat]Added 24 Read/Feed constraints in 9 ms returned sat
[2025-06-01 07:27:58] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 17 ms.
[2025-06-01 07:27:58] [INFO ] Added : 24 causal constraints over 6 iterations in 117 ms. Result :sat
Minimization took 42 ms.
[2025-06-01 07:27:58] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:27:58] [INFO ] [Real]Absence check using state equation in 64 ms returned sat
[2025-06-01 07:27:58] [INFO ] [Real]Added 24 Read/Feed constraints in 7 ms returned sat
[2025-06-01 07:27:58] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:27:58] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:27:58] [INFO ] [Nat]Absence check using state equation in 65 ms returned sat
[2025-06-01 07:27:58] [INFO ] [Nat]Added 24 Read/Feed constraints in 7 ms returned sat
[2025-06-01 07:27:58] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 18 ms.
[2025-06-01 07:27:58] [INFO ] Added : 6 causal constraints over 3 iterations in 73 ms. Result :sat
Minimization took 35 ms.
[2025-06-01 07:27:58] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:27:58] [INFO ] [Real]Absence check using state equation in 63 ms returned sat
[2025-06-01 07:27:58] [INFO ] [Real]Added 24 Read/Feed constraints in 7 ms returned sat
[2025-06-01 07:27:58] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:27:58] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:27:58] [INFO ] [Nat]Absence check using state equation in 65 ms returned sat
[2025-06-01 07:27:58] [INFO ] [Nat]Added 24 Read/Feed constraints in 7 ms returned sat
[2025-06-01 07:27:58] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 21 ms.
[2025-06-01 07:27:59] [INFO ] Added : 17 causal constraints over 5 iterations in 108 ms. Result :sat
Minimization took 40 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[753, 1345, 1204, 842, 2849, 285] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[753, 1345, 1204, 842, 2852, 285] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Support contains 6 out of 99 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 99/99 places, 246/246 transitions.
Applied a total of 0 rules in 5 ms. Remains 99 /99 variables (removed 0) and now considering 246/246 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 7 ms. Remains : 99/99 places, 246/246 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 99/99 places, 246/246 transitions.
Applied a total of 0 rules in 4 ms. Remains 99 /99 variables (removed 0) and now considering 246/246 (removed 0) transitions.
[2025-06-01 07:28:15] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
[2025-06-01 07:28:15] [INFO ] Invariant cache hit.
[2025-06-01 07:28:15] [INFO ] Implicit Places using invariants in 118 ms returned []
[2025-06-01 07:28:15] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
[2025-06-01 07:28:15] [INFO ] Invariant cache hit.
[2025-06-01 07:28:15] [INFO ] State equation strengthened by 24 read => feed constraints.
[2025-06-01 07:28:15] [INFO ] Implicit Places using invariants and state equation in 246 ms returned []
Implicit Place search using SMT with State Equation took 366 ms to find 0 implicit places.
[2025-06-01 07:28:15] [INFO ] Redundant transitions in 1 ms returned []
Running 244 sub problems to find dead transitions.
[2025-06-01 07:28:15] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
[2025-06-01 07:28:15] [INFO ] Invariant cache hit.
[2025-06-01 07:28:15] [INFO ] State equation strengthened by 24 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/99 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/99 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 2 (OVERLAPS) 155/254 variables, 99/102 constraints. Problems are: Problem set: 0 solved, 244 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/254 variables, 24/126 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/254 variables, 0/126 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 5 (OVERLAPS) 0/254 variables, 0/126 constraints. Problems are: Problem set: 0 solved, 244 unsolved
No progress, stopping.
After SMT solving in domain Real declared 254/254 variables, and 126 constraints, problems are : Problem set: 0 solved, 244 unsolved in 5121 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 99/99 constraints, ReadFeed: 24/24 constraints, PredecessorRefiner: 244/244 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 244 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/99 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/99 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 2 (OVERLAPS) 155/254 variables, 99/102 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/254 variables, 24/126 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/254 variables, 244/370 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/254 variables, 0/370 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 6 (OVERLAPS) 0/254 variables, 0/370 constraints. Problems are: Problem set: 0 solved, 244 unsolved
No progress, stopping.
After SMT solving in domain Int declared 254/254 variables, and 370 constraints, problems are : Problem set: 0 solved, 244 unsolved in 7962 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 99/99 constraints, ReadFeed: 24/24 constraints, PredecessorRefiner: 244/244 constraints, Known Traps: 0/0 constraints]
After SMT, in 13273ms problems are : Problem set: 0 solved, 244 unsolved
Search for dead transitions found 0 dead transitions in 13276ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 13656 ms. Remains : 99/99 places, 246/246 transitions.
[2025-06-01 07:28:29] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
Found an invariant !
This invariant on transitions {28=1, 35=1, 39=1, 77=1, 126=1, 154=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {24=1, 73=1, 106=1, 149=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 26 ms. (steps per millisecond=384 ) properties (out of 6) seen :[3, 0, 0, 5, 0, 0]
Current structural bounds on expressions (after cover walk) : Max Seen:[753, 1345, 1204, 842, 2852, 285] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 07:28:29] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
[2025-06-01 07:28:29] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[753, 1345, 1204, 842, 2852, 285] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 1445 ms. (691 steps per ms)
BEST_FIRST walk for 6000006 steps (12 resets) in 3320 ms. (1806 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[753, 1345, 1204, 842, 2852, 285] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 07:28:34] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
[2025-06-01 07:28:34] [INFO ] Invariant cache hit.
[2025-06-01 07:28:34] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 07:28:34] [INFO ] [Real]Absence check using state equation in 72 ms returned sat
[2025-06-01 07:28:34] [INFO ] State equation strengthened by 24 read => feed constraints.
[2025-06-01 07:28:34] [INFO ] [Real]Added 24 Read/Feed constraints in 11 ms returned sat
[2025-06-01 07:28:34] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:28:34] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:28:34] [INFO ] [Nat]Absence check using state equation in 54 ms returned sat
[2025-06-01 07:28:34] [INFO ] [Nat]Added 24 Read/Feed constraints in 7 ms returned sat
[2025-06-01 07:28:34] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 13 ms.
[2025-06-01 07:28:34] [INFO ] Added : 25 causal constraints over 7 iterations in 108 ms. Result :sat
Minimization took 44 ms.
[2025-06-01 07:28:34] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 07:28:34] [INFO ] [Real]Absence check using state equation in 83 ms returned sat
[2025-06-01 07:28:34] [INFO ] [Real]Added 24 Read/Feed constraints in 7 ms returned sat
[2025-06-01 07:28:34] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:28:34] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 07:28:34] [INFO ] [Nat]Absence check using state equation in 83 ms returned sat
[2025-06-01 07:28:34] [INFO ] [Nat]Added 24 Read/Feed constraints in 9 ms returned sat
[2025-06-01 07:28:34] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 22 ms.
[2025-06-01 07:28:35] [INFO ] Added : 24 causal constraints over 6 iterations in 161 ms. Result :sat
Minimization took 68 ms.
[2025-06-01 07:28:35] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 07:28:35] [INFO ] [Real]Absence check using state equation in 81 ms returned sat
[2025-06-01 07:28:35] [INFO ] [Real]Added 24 Read/Feed constraints in 9 ms returned sat
[2025-06-01 07:28:35] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:28:35] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 07:28:35] [INFO ] [Nat]Absence check using state equation in 86 ms returned sat
[2025-06-01 07:28:35] [INFO ] [Nat]Added 24 Read/Feed constraints in 9 ms returned sat
[2025-06-01 07:28:35] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 21 ms.
[2025-06-01 07:28:35] [INFO ] Added : 10 causal constraints over 3 iterations in 103 ms. Result :sat
Minimization took 61 ms.
[2025-06-01 07:28:35] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 07:28:35] [INFO ] [Real]Absence check using state equation in 85 ms returned sat
[2025-06-01 07:28:35] [INFO ] [Real]Added 24 Read/Feed constraints in 10 ms returned sat
[2025-06-01 07:28:35] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:28:35] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 07:28:35] [INFO ] [Nat]Absence check using state equation in 83 ms returned sat
[2025-06-01 07:28:35] [INFO ] [Nat]Added 24 Read/Feed constraints in 13 ms returned sat
[2025-06-01 07:28:35] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 20 ms.
[2025-06-01 07:28:36] [INFO ] Added : 24 causal constraints over 6 iterations in 151 ms. Result :sat
Minimization took 68 ms.
[2025-06-01 07:28:36] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 07:28:36] [INFO ] [Real]Absence check using state equation in 84 ms returned sat
[2025-06-01 07:28:36] [INFO ] [Real]Added 24 Read/Feed constraints in 9 ms returned sat
[2025-06-01 07:28:36] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:28:36] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2025-06-01 07:28:36] [INFO ] [Nat]Absence check using state equation in 76 ms returned sat
[2025-06-01 07:28:36] [INFO ] [Nat]Added 24 Read/Feed constraints in 9 ms returned sat
[2025-06-01 07:28:36] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 21 ms.
[2025-06-01 07:28:36] [INFO ] Added : 6 causal constraints over 3 iterations in 94 ms. Result :sat
Minimization took 57 ms.
[2025-06-01 07:28:36] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 07:28:36] [INFO ] [Real]Absence check using state equation in 82 ms returned sat
[2025-06-01 07:28:36] [INFO ] [Real]Added 24 Read/Feed constraints in 10 ms returned sat
[2025-06-01 07:28:36] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:28:36] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:28:36] [INFO ] [Nat]Absence check using state equation in 82 ms returned sat
[2025-06-01 07:28:36] [INFO ] [Nat]Added 24 Read/Feed constraints in 10 ms returned sat
[2025-06-01 07:28:36] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 22 ms.
[2025-06-01 07:28:37] [INFO ] Added : 17 causal constraints over 5 iterations in 139 ms. Result :sat
Minimization took 67 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[753, 1345, 1204, 842, 2852, 285] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[753, 1345, 1204, 842, 2855, 285] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Support contains 6 out of 99 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 99/99 places, 246/246 transitions.
Applied a total of 0 rules in 17 ms. Remains 99 /99 variables (removed 0) and now considering 246/246 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 17 ms. Remains : 99/99 places, 246/246 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 99/99 places, 246/246 transitions.
Applied a total of 0 rules in 4 ms. Remains 99 /99 variables (removed 0) and now considering 246/246 (removed 0) transitions.
[2025-06-01 07:28:52] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
[2025-06-01 07:28:52] [INFO ] Invariant cache hit.
[2025-06-01 07:28:52] [INFO ] Implicit Places using invariants in 122 ms returned []
[2025-06-01 07:28:52] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
[2025-06-01 07:28:52] [INFO ] Invariant cache hit.
[2025-06-01 07:28:52] [INFO ] State equation strengthened by 24 read => feed constraints.
[2025-06-01 07:28:52] [INFO ] Implicit Places using invariants and state equation in 344 ms returned []
Implicit Place search using SMT with State Equation took 507 ms to find 0 implicit places.
[2025-06-01 07:28:52] [INFO ] Redundant transitions in 2 ms returned []
Running 244 sub problems to find dead transitions.
[2025-06-01 07:28:52] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
[2025-06-01 07:28:52] [INFO ] Invariant cache hit.
[2025-06-01 07:28:52] [INFO ] State equation strengthened by 24 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/99 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/99 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 2 (OVERLAPS) 155/254 variables, 99/102 constraints. Problems are: Problem set: 0 solved, 244 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/254 variables, 24/126 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/254 variables, 0/126 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 5 (OVERLAPS) 0/254 variables, 0/126 constraints. Problems are: Problem set: 0 solved, 244 unsolved
No progress, stopping.
After SMT solving in domain Real declared 254/254 variables, and 126 constraints, problems are : Problem set: 0 solved, 244 unsolved in 6949 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 99/99 constraints, ReadFeed: 24/24 constraints, PredecessorRefiner: 244/244 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 244 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/99 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/99 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 2 (OVERLAPS) 155/254 variables, 99/102 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/254 variables, 24/126 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/254 variables, 244/370 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/254 variables, 0/370 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 6 (OVERLAPS) 0/254 variables, 0/370 constraints. Problems are: Problem set: 0 solved, 244 unsolved
No progress, stopping.
After SMT solving in domain Int declared 254/254 variables, and 370 constraints, problems are : Problem set: 0 solved, 244 unsolved in 10109 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 99/99 constraints, ReadFeed: 24/24 constraints, PredecessorRefiner: 244/244 constraints, Known Traps: 0/0 constraints]
After SMT, in 17381ms problems are : Problem set: 0 solved, 244 unsolved
Search for dead transitions found 0 dead transitions in 17386ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 17906 ms. Remains : 99/99 places, 246/246 transitions.
[2025-06-01 07:29:10] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
Found an invariant !
This invariant on transitions {28=1, 35=1, 39=1, 77=1, 126=1, 154=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {24=1, 73=1, 106=1, 149=1}
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 6) seen :[2, 4, 3, 2, 3, 2]
Current structural bounds on expressions (after cover walk) : Max Seen:[753, 1345, 1204, 842, 2855, 285] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 07:29:10] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
[2025-06-01 07:29:10] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[753, 1345, 1204, 842, 2855, 285] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000002 steps (2 resets) in 1497 ms. (667 steps per ms)
BEST_FIRST walk for 6000006 steps (12 resets) in 3282 ms. (1827 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[753, 2321, 1204, 842, 2855, 285] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 07:29:15] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
[2025-06-01 07:29:15] [INFO ] Invariant cache hit.
[2025-06-01 07:29:15] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:29:15] [INFO ] [Real]Absence check using state equation in 58 ms returned sat
[2025-06-01 07:29:15] [INFO ] State equation strengthened by 24 read => feed constraints.
[2025-06-01 07:29:15] [INFO ] [Real]Added 24 Read/Feed constraints in 8 ms returned sat
[2025-06-01 07:29:15] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:29:15] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:29:15] [INFO ] [Nat]Absence check using state equation in 57 ms returned sat
[2025-06-01 07:29:15] [INFO ] [Nat]Added 24 Read/Feed constraints in 8 ms returned sat
[2025-06-01 07:29:15] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 16 ms.
[2025-06-01 07:29:15] [INFO ] Added : 25 causal constraints over 7 iterations in 114 ms. Result :sat
Minimization took 45 ms.
[2025-06-01 07:29:15] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:29:15] [INFO ] [Real]Absence check using state equation in 82 ms returned sat
[2025-06-01 07:29:15] [INFO ] [Real]Added 24 Read/Feed constraints in 9 ms returned sat
[2025-06-01 07:29:15] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:29:15] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:29:15] [INFO ] [Nat]Absence check using state equation in 81 ms returned sat
[2025-06-01 07:29:15] [INFO ] [Nat]Added 24 Read/Feed constraints in 9 ms returned sat
[2025-06-01 07:29:15] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 20 ms.
[2025-06-01 07:29:16] [INFO ] Added : 24 causal constraints over 6 iterations in 158 ms. Result :sat
Minimization took 71 ms.
[2025-06-01 07:29:16] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 07:29:16] [INFO ] [Real]Absence check using state equation in 84 ms returned sat
[2025-06-01 07:29:16] [INFO ] [Real]Added 24 Read/Feed constraints in 9 ms returned sat
[2025-06-01 07:29:16] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:29:16] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 07:29:16] [INFO ] [Nat]Absence check using state equation in 80 ms returned sat
[2025-06-01 07:29:16] [INFO ] [Nat]Added 24 Read/Feed constraints in 10 ms returned sat
[2025-06-01 07:29:16] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 20 ms.
[2025-06-01 07:29:16] [INFO ] Added : 10 causal constraints over 3 iterations in 103 ms. Result :sat
Minimization took 61 ms.
[2025-06-01 07:29:16] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 07:29:16] [INFO ] [Real]Absence check using state equation in 84 ms returned sat
[2025-06-01 07:29:16] [INFO ] [Real]Added 24 Read/Feed constraints in 10 ms returned sat
[2025-06-01 07:29:16] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:29:16] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:29:16] [INFO ] [Nat]Absence check using state equation in 82 ms returned sat
[2025-06-01 07:29:16] [INFO ] [Nat]Added 24 Read/Feed constraints in 12 ms returned sat
[2025-06-01 07:29:16] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 19 ms.
[2025-06-01 07:29:17] [INFO ] Added : 24 causal constraints over 6 iterations in 149 ms. Result :sat
Minimization took 68 ms.
[2025-06-01 07:29:17] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:29:17] [INFO ] [Real]Absence check using state equation in 83 ms returned sat
[2025-06-01 07:29:17] [INFO ] [Real]Added 24 Read/Feed constraints in 10 ms returned sat
[2025-06-01 07:29:17] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:29:17] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 07:29:17] [INFO ] [Nat]Absence check using state equation in 83 ms returned sat
[2025-06-01 07:29:17] [INFO ] [Nat]Added 24 Read/Feed constraints in 11 ms returned sat
[2025-06-01 07:29:17] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 22 ms.
[2025-06-01 07:29:17] [INFO ] Added : 6 causal constraints over 3 iterations in 97 ms. Result :sat
Minimization took 51 ms.
[2025-06-01 07:29:17] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:29:17] [INFO ] [Real]Absence check using state equation in 72 ms returned sat
[2025-06-01 07:29:17] [INFO ] [Real]Added 24 Read/Feed constraints in 9 ms returned sat
[2025-06-01 07:29:17] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:29:17] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:29:17] [INFO ] [Nat]Absence check using state equation in 67 ms returned sat
[2025-06-01 07:29:17] [INFO ] [Nat]Added 24 Read/Feed constraints in 8 ms returned sat
[2025-06-01 07:29:17] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 21 ms.
[2025-06-01 07:29:18] [INFO ] Added : 17 causal constraints over 5 iterations in 110 ms. Result :sat
Minimization took 43 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[753, 2321, 1204, 842, 2855, 285] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[753, 2321, 1204, 842, 2860, 288] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Support contains 6 out of 99 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 99/99 places, 246/246 transitions.
Applied a total of 0 rules in 5 ms. Remains 99 /99 variables (removed 0) and now considering 246/246 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 6 ms. Remains : 99/99 places, 246/246 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 99/99 places, 246/246 transitions.
Applied a total of 0 rules in 4 ms. Remains 99 /99 variables (removed 0) and now considering 246/246 (removed 0) transitions.
[2025-06-01 07:29:38] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
[2025-06-01 07:29:38] [INFO ] Invariant cache hit.
[2025-06-01 07:29:38] [INFO ] Implicit Places using invariants in 162 ms returned []
[2025-06-01 07:29:38] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
[2025-06-01 07:29:38] [INFO ] Invariant cache hit.
[2025-06-01 07:29:38] [INFO ] State equation strengthened by 24 read => feed constraints.
[2025-06-01 07:29:38] [INFO ] Implicit Places using invariants and state equation in 313 ms returned []
Implicit Place search using SMT with State Equation took 476 ms to find 0 implicit places.
[2025-06-01 07:29:38] [INFO ] Redundant transitions in 1 ms returned []
Running 244 sub problems to find dead transitions.
[2025-06-01 07:29:38] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
[2025-06-01 07:29:38] [INFO ] Invariant cache hit.
[2025-06-01 07:29:38] [INFO ] State equation strengthened by 24 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/99 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/99 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 2 (OVERLAPS) 155/254 variables, 99/102 constraints. Problems are: Problem set: 0 solved, 244 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/254 variables, 24/126 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/254 variables, 0/126 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 5 (OVERLAPS) 0/254 variables, 0/126 constraints. Problems are: Problem set: 0 solved, 244 unsolved
No progress, stopping.
After SMT solving in domain Real declared 254/254 variables, and 126 constraints, problems are : Problem set: 0 solved, 244 unsolved in 7823 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 99/99 constraints, ReadFeed: 24/24 constraints, PredecessorRefiner: 244/244 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 244 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/99 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/99 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 2 (OVERLAPS) 155/254 variables, 99/102 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/254 variables, 24/126 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/254 variables, 244/370 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/254 variables, 0/370 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 6 (OVERLAPS) 0/254 variables, 0/370 constraints. Problems are: Problem set: 0 solved, 244 unsolved
No progress, stopping.
After SMT solving in domain Int declared 254/254 variables, and 370 constraints, problems are : Problem set: 0 solved, 244 unsolved in 11427 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 99/99 constraints, ReadFeed: 24/24 constraints, PredecessorRefiner: 244/244 constraints, Known Traps: 0/0 constraints]
After SMT, in 19561ms problems are : Problem set: 0 solved, 244 unsolved
Search for dead transitions found 0 dead transitions in 19566ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 20056 ms. Remains : 99/99 places, 246/246 transitions.
[2025-06-01 07:29:58] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
Found an invariant !
This invariant on transitions {28=1, 35=1, 39=1, 77=1, 126=1, 154=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {24=1, 73=1, 106=1, 149=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 36 ms. (steps per millisecond=277 ) properties (out of 6) seen :[3, 6, 4, 3, 4, 3]
Current structural bounds on expressions (after cover walk) : Max Seen:[753, 2321, 1204, 842, 2860, 288] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 07:29:58] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
[2025-06-01 07:29:58] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[753, 2321, 1204, 842, 2860, 288] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 1748 ms. (571 steps per ms)
BEST_FIRST walk for 6000006 steps (12 resets) in 3369 ms. (1780 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[753, 2321, 1204, 842, 2860, 363] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 07:30:03] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
[2025-06-01 07:30:03] [INFO ] Invariant cache hit.
[2025-06-01 07:30:03] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:30:03] [INFO ] [Real]Absence check using state equation in 46 ms returned sat
[2025-06-01 07:30:03] [INFO ] State equation strengthened by 24 read => feed constraints.
[2025-06-01 07:30:03] [INFO ] [Real]Added 24 Read/Feed constraints in 11 ms returned sat
[2025-06-01 07:30:03] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:30:03] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 07:30:03] [INFO ] [Nat]Absence check using state equation in 80 ms returned sat
[2025-06-01 07:30:03] [INFO ] [Nat]Added 24 Read/Feed constraints in 12 ms returned sat
[2025-06-01 07:30:03] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 20 ms.
[2025-06-01 07:30:03] [INFO ] Added : 25 causal constraints over 7 iterations in 170 ms. Result :sat
Minimization took 73 ms.
[2025-06-01 07:30:04] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 07:30:04] [INFO ] [Real]Absence check using state equation in 84 ms returned sat
[2025-06-01 07:30:04] [INFO ] [Real]Added 24 Read/Feed constraints in 8 ms returned sat
[2025-06-01 07:30:04] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:30:04] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:30:04] [INFO ] [Nat]Absence check using state equation in 81 ms returned sat
[2025-06-01 07:30:04] [INFO ] [Nat]Added 24 Read/Feed constraints in 9 ms returned sat
[2025-06-01 07:30:04] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 21 ms.
[2025-06-01 07:30:04] [INFO ] Added : 24 causal constraints over 6 iterations in 157 ms. Result :sat
Minimization took 70 ms.
[2025-06-01 07:30:04] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:30:04] [INFO ] [Real]Absence check using state equation in 80 ms returned sat
[2025-06-01 07:30:04] [INFO ] [Real]Added 24 Read/Feed constraints in 9 ms returned sat
[2025-06-01 07:30:04] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:30:04] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 07:30:04] [INFO ] [Nat]Absence check using state equation in 85 ms returned sat
[2025-06-01 07:30:04] [INFO ] [Nat]Added 24 Read/Feed constraints in 17 ms returned sat
[2025-06-01 07:30:04] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 20 ms.
[2025-06-01 07:30:05] [INFO ] Added : 10 causal constraints over 3 iterations in 102 ms. Result :sat
Minimization took 62 ms.
[2025-06-01 07:30:05] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:30:05] [INFO ] [Real]Absence check using state equation in 85 ms returned sat
[2025-06-01 07:30:05] [INFO ] [Real]Added 24 Read/Feed constraints in 10 ms returned sat
[2025-06-01 07:30:05] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:30:05] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:30:05] [INFO ] [Nat]Absence check using state equation in 83 ms returned sat
[2025-06-01 07:30:05] [INFO ] [Nat]Added 24 Read/Feed constraints in 12 ms returned sat
[2025-06-01 07:30:05] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 18 ms.
[2025-06-01 07:30:05] [INFO ] Added : 24 causal constraints over 6 iterations in 144 ms. Result :sat
Minimization took 68 ms.
[2025-06-01 07:30:05] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 07:30:05] [INFO ] [Real]Absence check using state equation in 81 ms returned sat
[2025-06-01 07:30:05] [INFO ] [Real]Added 24 Read/Feed constraints in 8 ms returned sat
[2025-06-01 07:30:05] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:30:05] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:30:05] [INFO ] [Nat]Absence check using state equation in 85 ms returned sat
[2025-06-01 07:30:05] [INFO ] [Nat]Added 24 Read/Feed constraints in 11 ms returned sat
[2025-06-01 07:30:05] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 22 ms.
[2025-06-01 07:30:06] [INFO ] Added : 6 causal constraints over 3 iterations in 95 ms. Result :sat
Minimization took 58 ms.
[2025-06-01 07:30:06] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 07:30:06] [INFO ] [Real]Absence check using state equation in 84 ms returned sat
[2025-06-01 07:30:06] [INFO ] [Real]Added 24 Read/Feed constraints in 10 ms returned sat
[2025-06-01 07:30:06] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:30:06] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:30:06] [INFO ] [Nat]Absence check using state equation in 89 ms returned sat
[2025-06-01 07:30:06] [INFO ] [Nat]Added 24 Read/Feed constraints in 10 ms returned sat
[2025-06-01 07:30:06] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 21 ms.
[2025-06-01 07:30:06] [INFO ] Added : 17 causal constraints over 5 iterations in 137 ms. Result :sat
Minimization took 66 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[753, 2321, 1204, 842, 2860, 363] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[753, 2321, 1204, 842, 2863, 363] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Support contains 6 out of 99 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 99/99 places, 246/246 transitions.
Applied a total of 0 rules in 4 ms. Remains 99 /99 variables (removed 0) and now considering 246/246 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 6 ms. Remains : 99/99 places, 246/246 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 99/99 places, 246/246 transitions.
Applied a total of 0 rules in 4 ms. Remains 99 /99 variables (removed 0) and now considering 246/246 (removed 0) transitions.
[2025-06-01 07:30:25] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
[2025-06-01 07:30:25] [INFO ] Invariant cache hit.
[2025-06-01 07:30:25] [INFO ] Implicit Places using invariants in 130 ms returned []
[2025-06-01 07:30:25] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
[2025-06-01 07:30:25] [INFO ] Invariant cache hit.
[2025-06-01 07:30:25] [INFO ] State equation strengthened by 24 read => feed constraints.
[2025-06-01 07:30:25] [INFO ] Implicit Places using invariants and state equation in 246 ms returned []
Implicit Place search using SMT with State Equation took 378 ms to find 0 implicit places.
[2025-06-01 07:30:25] [INFO ] Redundant transitions in 1 ms returned []
Running 244 sub problems to find dead transitions.
[2025-06-01 07:30:25] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
[2025-06-01 07:30:25] [INFO ] Invariant cache hit.
[2025-06-01 07:30:25] [INFO ] State equation strengthened by 24 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/99 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/99 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 2 (OVERLAPS) 155/254 variables, 99/102 constraints. Problems are: Problem set: 0 solved, 244 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/254 variables, 24/126 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/254 variables, 0/126 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 5 (OVERLAPS) 0/254 variables, 0/126 constraints. Problems are: Problem set: 0 solved, 244 unsolved
No progress, stopping.
After SMT solving in domain Real declared 254/254 variables, and 126 constraints, problems are : Problem set: 0 solved, 244 unsolved in 6281 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 99/99 constraints, ReadFeed: 24/24 constraints, PredecessorRefiner: 244/244 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 244 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/99 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/99 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 2 (OVERLAPS) 155/254 variables, 99/102 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/254 variables, 24/126 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/254 variables, 244/370 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/254 variables, 0/370 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 6 (OVERLAPS) 0/254 variables, 0/370 constraints. Problems are: Problem set: 0 solved, 244 unsolved
No progress, stopping.
After SMT solving in domain Int declared 254/254 variables, and 370 constraints, problems are : Problem set: 0 solved, 244 unsolved in 8986 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 99/99 constraints, ReadFeed: 24/24 constraints, PredecessorRefiner: 244/244 constraints, Known Traps: 0/0 constraints]
After SMT, in 15565ms problems are : Problem set: 0 solved, 244 unsolved
Search for dead transitions found 0 dead transitions in 15570ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 15962 ms. Remains : 99/99 places, 246/246 transitions.
[2025-06-01 07:30:41] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
Found an invariant !
This invariant on transitions {28=1, 35=1, 39=1, 77=1, 126=1, 154=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {24=1, 73=1, 106=1, 149=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 24 ms. (steps per millisecond=416 ) properties (out of 6) seen :[5, 5, 4, 3, 0, 0]
Current structural bounds on expressions (after cover walk) : Max Seen:[753, 2321, 1204, 842, 2863, 363] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 07:30:41] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
[2025-06-01 07:30:41] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[753, 2321, 1204, 842, 2863, 363] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 1289 ms. (775 steps per ms)
BEST_FIRST walk for 6000005 steps (12 resets) in 3339 ms. (1796 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[753, 2321, 1204, 842, 2863, 363] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 07:30:45] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
[2025-06-01 07:30:45] [INFO ] Invariant cache hit.
[2025-06-01 07:30:46] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:30:46] [INFO ] [Real]Absence check using state equation in 55 ms returned sat
[2025-06-01 07:30:46] [INFO ] State equation strengthened by 24 read => feed constraints.
[2025-06-01 07:30:46] [INFO ] [Real]Added 24 Read/Feed constraints in 7 ms returned sat
[2025-06-01 07:30:46] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:30:46] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:30:46] [INFO ] [Nat]Absence check using state equation in 52 ms returned sat
[2025-06-01 07:30:46] [INFO ] [Nat]Added 24 Read/Feed constraints in 7 ms returned sat
[2025-06-01 07:30:46] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 13 ms.
[2025-06-01 07:30:46] [INFO ] Added : 25 causal constraints over 7 iterations in 103 ms. Result :sat
Minimization took 43 ms.
[2025-06-01 07:30:46] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:30:46] [INFO ] [Real]Absence check using state equation in 57 ms returned sat
[2025-06-01 07:30:46] [INFO ] [Real]Added 24 Read/Feed constraints in 5 ms returned sat
[2025-06-01 07:30:46] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:30:46] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:30:46] [INFO ] [Nat]Absence check using state equation in 51 ms returned sat
[2025-06-01 07:30:46] [INFO ] [Nat]Added 24 Read/Feed constraints in 6 ms returned sat
[2025-06-01 07:30:46] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 13 ms.
[2025-06-01 07:30:46] [INFO ] Added : 24 causal constraints over 6 iterations in 97 ms. Result :sat
Minimization took 43 ms.
[2025-06-01 07:30:46] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:30:46] [INFO ] [Real]Absence check using state equation in 54 ms returned sat
[2025-06-01 07:30:46] [INFO ] [Real]Added 24 Read/Feed constraints in 6 ms returned sat
[2025-06-01 07:30:46] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:30:46] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:30:46] [INFO ] [Nat]Absence check using state equation in 52 ms returned sat
[2025-06-01 07:30:46] [INFO ] [Nat]Added 24 Read/Feed constraints in 5 ms returned sat
[2025-06-01 07:30:46] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 14 ms.
[2025-06-01 07:30:46] [INFO ] Added : 10 causal constraints over 3 iterations in 64 ms. Result :sat
Minimization took 36 ms.
[2025-06-01 07:30:47] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:30:47] [INFO ] [Real]Absence check using state equation in 56 ms returned sat
[2025-06-01 07:30:47] [INFO ] [Real]Added 24 Read/Feed constraints in 7 ms returned sat
[2025-06-01 07:30:47] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:30:47] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:30:47] [INFO ] [Nat]Absence check using state equation in 55 ms returned sat
[2025-06-01 07:30:47] [INFO ] [Nat]Added 24 Read/Feed constraints in 7 ms returned sat
[2025-06-01 07:30:47] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 13 ms.
[2025-06-01 07:30:47] [INFO ] Added : 24 causal constraints over 6 iterations in 97 ms. Result :sat
Minimization took 43 ms.
[2025-06-01 07:30:47] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:30:47] [INFO ] [Real]Absence check using state equation in 49 ms returned sat
[2025-06-01 07:30:47] [INFO ] [Real]Added 24 Read/Feed constraints in 5 ms returned sat
[2025-06-01 07:30:47] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:30:47] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:30:47] [INFO ] [Nat]Absence check using state equation in 54 ms returned sat
[2025-06-01 07:30:47] [INFO ] [Nat]Added 24 Read/Feed constraints in 6 ms returned sat
[2025-06-01 07:30:47] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 13 ms.
[2025-06-01 07:30:47] [INFO ] Added : 6 causal constraints over 3 iterations in 60 ms. Result :sat
Minimization took 38 ms.
[2025-06-01 07:30:47] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:30:47] [INFO ] [Real]Absence check using state equation in 53 ms returned sat
[2025-06-01 07:30:47] [INFO ] [Real]Added 24 Read/Feed constraints in 6 ms returned sat
[2025-06-01 07:30:47] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:30:47] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:30:47] [INFO ] [Nat]Absence check using state equation in 54 ms returned sat
[2025-06-01 07:30:47] [INFO ] [Nat]Added 24 Read/Feed constraints in 6 ms returned sat
[2025-06-01 07:30:47] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 14 ms.
[2025-06-01 07:30:47] [INFO ] Added : 17 causal constraints over 5 iterations in 89 ms. Result :sat
Minimization took 44 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[753, 2321, 1204, 842, 2863, 363] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[753, 2321, 1204, 842, 2869, 367] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Support contains 6 out of 99 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 99/99 places, 246/246 transitions.
Applied a total of 0 rules in 5 ms. Remains 99 /99 variables (removed 0) and now considering 246/246 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 5 ms. Remains : 99/99 places, 246/246 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 99/99 places, 246/246 transitions.
Applied a total of 0 rules in 4 ms. Remains 99 /99 variables (removed 0) and now considering 246/246 (removed 0) transitions.
[2025-06-01 07:31:06] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
[2025-06-01 07:31:06] [INFO ] Invariant cache hit.
[2025-06-01 07:31:06] [INFO ] Implicit Places using invariants in 152 ms returned []
[2025-06-01 07:31:06] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
[2025-06-01 07:31:06] [INFO ] Invariant cache hit.
[2025-06-01 07:31:06] [INFO ] State equation strengthened by 24 read => feed constraints.
[2025-06-01 07:31:07] [INFO ] Implicit Places using invariants and state equation in 294 ms returned []
Implicit Place search using SMT with State Equation took 449 ms to find 0 implicit places.
[2025-06-01 07:31:07] [INFO ] Redundant transitions in 1 ms returned []
Running 244 sub problems to find dead transitions.
[2025-06-01 07:31:07] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
[2025-06-01 07:31:07] [INFO ] Invariant cache hit.
[2025-06-01 07:31:07] [INFO ] State equation strengthened by 24 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/99 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/99 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 2 (OVERLAPS) 155/254 variables, 99/102 constraints. Problems are: Problem set: 0 solved, 244 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/254 variables, 24/126 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/254 variables, 0/126 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 5 (OVERLAPS) 0/254 variables, 0/126 constraints. Problems are: Problem set: 0 solved, 244 unsolved
No progress, stopping.
After SMT solving in domain Real declared 254/254 variables, and 126 constraints, problems are : Problem set: 0 solved, 244 unsolved in 7312 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 99/99 constraints, ReadFeed: 24/24 constraints, PredecessorRefiner: 244/244 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 244 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/99 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/99 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 2 (OVERLAPS) 155/254 variables, 99/102 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/254 variables, 24/126 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/254 variables, 244/370 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/254 variables, 0/370 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 6 (OVERLAPS) 0/254 variables, 0/370 constraints. Problems are: Problem set: 0 solved, 244 unsolved
No progress, stopping.
After SMT solving in domain Int declared 254/254 variables, and 370 constraints, problems are : Problem set: 0 solved, 244 unsolved in 11568 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 99/99 constraints, ReadFeed: 24/24 constraints, PredecessorRefiner: 244/244 constraints, Known Traps: 0/0 constraints]
After SMT, in 19200ms problems are : Problem set: 0 solved, 244 unsolved
Search for dead transitions found 0 dead transitions in 19205ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 19665 ms. Remains : 99/99 places, 246/246 transitions.
[2025-06-01 07:31:26] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
Found an invariant !
This invariant on transitions {28=1, 35=1, 39=1, 77=1, 126=1, 154=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {24=1, 73=1, 106=1, 149=1}
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 6) seen :[2, 5, 3, 3, 2, 1]
Current structural bounds on expressions (after cover walk) : Max Seen:[753, 2321, 1204, 842, 2869, 367] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 07:31:26] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
[2025-06-01 07:31:26] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[753, 2321, 1204, 842, 2869, 367] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 1266 ms. (789 steps per ms)
BEST_FIRST walk for 6000005 steps (12 resets) in 3355 ms. (1787 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[753, 2321, 1204, 842, 2869, 367] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 07:31:31] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
[2025-06-01 07:31:31] [INFO ] Invariant cache hit.
[2025-06-01 07:31:31] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:31:31] [INFO ] [Real]Absence check using state equation in 72 ms returned sat
[2025-06-01 07:31:31] [INFO ] State equation strengthened by 24 read => feed constraints.
[2025-06-01 07:31:31] [INFO ] [Real]Added 24 Read/Feed constraints in 11 ms returned sat
[2025-06-01 07:31:31] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:31:31] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:31:31] [INFO ] [Nat]Absence check using state equation in 72 ms returned sat
[2025-06-01 07:31:31] [INFO ] [Nat]Added 24 Read/Feed constraints in 11 ms returned sat
[2025-06-01 07:31:31] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 16 ms.
[2025-06-01 07:31:31] [INFO ] Added : 25 causal constraints over 7 iterations in 153 ms. Result :sat
Minimization took 74 ms.
[2025-06-01 07:31:31] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:31:31] [INFO ] [Real]Absence check using state equation in 76 ms returned sat
[2025-06-01 07:31:31] [INFO ] [Real]Added 24 Read/Feed constraints in 7 ms returned sat
[2025-06-01 07:31:31] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:31:31] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:31:31] [INFO ] [Nat]Absence check using state equation in 81 ms returned sat
[2025-06-01 07:31:31] [INFO ] [Nat]Added 24 Read/Feed constraints in 10 ms returned sat
[2025-06-01 07:31:31] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 21 ms.
[2025-06-01 07:31:32] [INFO ] Added : 24 causal constraints over 6 iterations in 159 ms. Result :sat
Minimization took 68 ms.
[2025-06-01 07:31:32] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:31:32] [INFO ] [Real]Absence check using state equation in 81 ms returned sat
[2025-06-01 07:31:32] [INFO ] [Real]Added 24 Read/Feed constraints in 8 ms returned sat
[2025-06-01 07:31:32] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:31:32] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 07:31:32] [INFO ] [Nat]Absence check using state equation in 78 ms returned sat
[2025-06-01 07:31:32] [INFO ] [Nat]Added 24 Read/Feed constraints in 9 ms returned sat
[2025-06-01 07:31:32] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 20 ms.
[2025-06-01 07:31:32] [INFO ] Added : 10 causal constraints over 3 iterations in 102 ms. Result :sat
Minimization took 61 ms.
[2025-06-01 07:31:32] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 07:31:32] [INFO ] [Real]Absence check using state equation in 83 ms returned sat
[2025-06-01 07:31:32] [INFO ] [Real]Added 24 Read/Feed constraints in 11 ms returned sat
[2025-06-01 07:31:32] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:31:32] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:31:32] [INFO ] [Nat]Absence check using state equation in 81 ms returned sat
[2025-06-01 07:31:32] [INFO ] [Nat]Added 24 Read/Feed constraints in 14 ms returned sat
[2025-06-01 07:31:32] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 20 ms.
[2025-06-01 07:31:33] [INFO ] Added : 24 causal constraints over 6 iterations in 152 ms. Result :sat
Minimization took 69 ms.
[2025-06-01 07:31:33] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 07:31:33] [INFO ] [Real]Absence check using state equation in 81 ms returned sat
[2025-06-01 07:31:33] [INFO ] [Real]Added 24 Read/Feed constraints in 9 ms returned sat
[2025-06-01 07:31:33] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:31:33] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:31:33] [INFO ] [Nat]Absence check using state equation in 84 ms returned sat
[2025-06-01 07:31:33] [INFO ] [Nat]Added 24 Read/Feed constraints in 10 ms returned sat
[2025-06-01 07:31:33] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 18 ms.
[2025-06-01 07:31:33] [INFO ] Added : 6 causal constraints over 3 iterations in 92 ms. Result :sat
Minimization took 57 ms.
[2025-06-01 07:31:33] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:31:33] [INFO ] [Real]Absence check using state equation in 86 ms returned sat
[2025-06-01 07:31:33] [INFO ] [Real]Added 24 Read/Feed constraints in 9 ms returned sat
[2025-06-01 07:31:33] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:31:33] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 07:31:33] [INFO ] [Nat]Absence check using state equation in 88 ms returned sat
[2025-06-01 07:31:33] [INFO ] [Nat]Added 24 Read/Feed constraints in 8 ms returned sat
[2025-06-01 07:31:33] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 21 ms.
[2025-06-01 07:31:34] [INFO ] Added : 17 causal constraints over 5 iterations in 140 ms. Result :sat
Minimization took 67 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[753, 2321, 1204, 842, 2869, 367] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[753, 2321, 1204, 842, 2872, 367] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Support contains 6 out of 99 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 99/99 places, 246/246 transitions.
Applied a total of 0 rules in 5 ms. Remains 99 /99 variables (removed 0) and now considering 246/246 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 5 ms. Remains : 99/99 places, 246/246 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 99/99 places, 246/246 transitions.
Applied a total of 0 rules in 4 ms. Remains 99 /99 variables (removed 0) and now considering 246/246 (removed 0) transitions.
[2025-06-01 07:31:53] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
[2025-06-01 07:31:53] [INFO ] Invariant cache hit.
[2025-06-01 07:31:53] [INFO ] Implicit Places using invariants in 119 ms returned []
[2025-06-01 07:31:53] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
[2025-06-01 07:31:53] [INFO ] Invariant cache hit.
[2025-06-01 07:31:53] [INFO ] State equation strengthened by 24 read => feed constraints.
[2025-06-01 07:31:53] [INFO ] Implicit Places using invariants and state equation in 218 ms returned []
Implicit Place search using SMT with State Equation took 365 ms to find 0 implicit places.
[2025-06-01 07:31:53] [INFO ] Redundant transitions in 1 ms returned []
Running 244 sub problems to find dead transitions.
[2025-06-01 07:31:53] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
[2025-06-01 07:31:53] [INFO ] Invariant cache hit.
[2025-06-01 07:31:53] [INFO ] State equation strengthened by 24 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/99 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/99 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 2 (OVERLAPS) 155/254 variables, 99/102 constraints. Problems are: Problem set: 0 solved, 244 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/254 variables, 24/126 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/254 variables, 0/126 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 5 (OVERLAPS) 0/254 variables, 0/126 constraints. Problems are: Problem set: 0 solved, 244 unsolved
No progress, stopping.
After SMT solving in domain Real declared 254/254 variables, and 126 constraints, problems are : Problem set: 0 solved, 244 unsolved in 7208 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 99/99 constraints, ReadFeed: 24/24 constraints, PredecessorRefiner: 244/244 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 244 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/99 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/99 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 2 (OVERLAPS) 155/254 variables, 99/102 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/254 variables, 24/126 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/254 variables, 244/370 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/254 variables, 0/370 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 6 (OVERLAPS) 0/254 variables, 0/370 constraints. Problems are: Problem set: 0 solved, 244 unsolved
No progress, stopping.
After SMT solving in domain Int declared 254/254 variables, and 370 constraints, problems are : Problem set: 0 solved, 244 unsolved in 10679 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 99/99 constraints, ReadFeed: 24/24 constraints, PredecessorRefiner: 244/244 constraints, Known Traps: 0/0 constraints]
After SMT, in 18055ms problems are : Problem set: 0 solved, 244 unsolved
Search for dead transitions found 0 dead transitions in 18057ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 18435 ms. Remains : 99/99 places, 246/246 transitions.
[2025-06-01 07:32:11] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
Found an invariant !
This invariant on transitions {28=1, 35=1, 39=1, 77=1, 126=1, 154=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {24=1, 73=1, 106=1, 149=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 33 ms. (steps per millisecond=303 ) properties (out of 6) seen :[3, 3, 2, 3, 4, 2]
Current structural bounds on expressions (after cover walk) : Max Seen:[753, 2321, 1204, 842, 2872, 367] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 07:32:12] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
[2025-06-01 07:32:12] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[753, 2321, 1204, 842, 2872, 367] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 1708 ms. (585 steps per ms)
BEST_FIRST walk for 6000005 steps (12 resets) in 3318 ms. (1807 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[753, 2321, 1204, 842, 2963, 367] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 07:32:17] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
[2025-06-01 07:32:17] [INFO ] Invariant cache hit.
[2025-06-01 07:32:17] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 07:32:17] [INFO ] [Real]Absence check using state equation in 83 ms returned sat
[2025-06-01 07:32:17] [INFO ] State equation strengthened by 24 read => feed constraints.
[2025-06-01 07:32:17] [INFO ] [Real]Added 24 Read/Feed constraints in 11 ms returned sat
[2025-06-01 07:32:17] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:32:17] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:32:17] [INFO ] [Nat]Absence check using state equation in 82 ms returned sat
[2025-06-01 07:32:17] [INFO ] [Nat]Added 24 Read/Feed constraints in 11 ms returned sat
[2025-06-01 07:32:17] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 20 ms.
[2025-06-01 07:32:17] [INFO ] Added : 25 causal constraints over 7 iterations in 160 ms. Result :sat
Minimization took 63 ms.
[2025-06-01 07:32:17] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 07:32:17] [INFO ] [Real]Absence check using state equation in 74 ms returned sat
[2025-06-01 07:32:17] [INFO ] [Real]Added 24 Read/Feed constraints in 8 ms returned sat
[2025-06-01 07:32:17] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:32:17] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 07:32:17] [INFO ] [Nat]Absence check using state equation in 81 ms returned sat
[2025-06-01 07:32:17] [INFO ] [Nat]Added 24 Read/Feed constraints in 11 ms returned sat
[2025-06-01 07:32:18] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 21 ms.
[2025-06-01 07:32:18] [INFO ] Added : 24 causal constraints over 6 iterations in 154 ms. Result :sat
Minimization took 69 ms.
[2025-06-01 07:32:18] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 07:32:18] [INFO ] [Real]Absence check using state equation in 76 ms returned sat
[2025-06-01 07:32:18] [INFO ] [Real]Added 24 Read/Feed constraints in 9 ms returned sat
[2025-06-01 07:32:18] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:32:18] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 07:32:18] [INFO ] [Nat]Absence check using state equation in 83 ms returned sat
[2025-06-01 07:32:18] [INFO ] [Nat]Added 24 Read/Feed constraints in 9 ms returned sat
[2025-06-01 07:32:18] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 22 ms.
[2025-06-01 07:32:18] [INFO ] Added : 10 causal constraints over 3 iterations in 104 ms. Result :sat
Minimization took 39 ms.
[2025-06-01 07:32:18] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:32:18] [INFO ] [Real]Absence check using state equation in 66 ms returned sat
[2025-06-01 07:32:18] [INFO ] [Real]Added 24 Read/Feed constraints in 8 ms returned sat
[2025-06-01 07:32:18] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:32:18] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:32:18] [INFO ] [Nat]Absence check using state equation in 66 ms returned sat
[2025-06-01 07:32:18] [INFO ] [Nat]Added 24 Read/Feed constraints in 7 ms returned sat
[2025-06-01 07:32:18] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 18 ms.
[2025-06-01 07:32:19] [INFO ] Added : 24 causal constraints over 6 iterations in 117 ms. Result :sat
Minimization took 41 ms.
[2025-06-01 07:32:19] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:32:19] [INFO ] [Real]Absence check using state equation in 64 ms returned sat
[2025-06-01 07:32:19] [INFO ] [Real]Added 24 Read/Feed constraints in 6 ms returned sat
[2025-06-01 07:32:19] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:32:19] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:32:19] [INFO ] [Nat]Absence check using state equation in 64 ms returned sat
[2025-06-01 07:32:19] [INFO ] [Nat]Added 24 Read/Feed constraints in 6 ms returned sat
[2025-06-01 07:32:19] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 18 ms.
[2025-06-01 07:32:19] [INFO ] Added : 6 causal constraints over 3 iterations in 73 ms. Result :sat
Minimization took 34 ms.
[2025-06-01 07:32:19] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:32:19] [INFO ] [Real]Absence check using state equation in 69 ms returned sat
[2025-06-01 07:32:19] [INFO ] [Real]Added 24 Read/Feed constraints in 7 ms returned sat
[2025-06-01 07:32:19] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:32:19] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:32:19] [INFO ] [Nat]Absence check using state equation in 68 ms returned sat
[2025-06-01 07:32:19] [INFO ] [Nat]Added 24 Read/Feed constraints in 9 ms returned sat
[2025-06-01 07:32:19] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 20 ms.
[2025-06-01 07:32:19] [INFO ] Added : 17 causal constraints over 5 iterations in 112 ms. Result :sat
Minimization took 45 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[753, 2321, 1204, 842, 2963, 367] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[753, 2321, 1204, 842, 2969, 367] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Support contains 6 out of 99 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 99/99 places, 246/246 transitions.
Applied a total of 0 rules in 7 ms. Remains 99 /99 variables (removed 0) and now considering 246/246 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 8 ms. Remains : 99/99 places, 246/246 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 99/99 places, 246/246 transitions.
Applied a total of 0 rules in 4 ms. Remains 99 /99 variables (removed 0) and now considering 246/246 (removed 0) transitions.
[2025-06-01 07:32:38] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
[2025-06-01 07:32:38] [INFO ] Invariant cache hit.
[2025-06-01 07:32:38] [INFO ] Implicit Places using invariants in 134 ms returned []
[2025-06-01 07:32:38] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
[2025-06-01 07:32:38] [INFO ] Invariant cache hit.
[2025-06-01 07:32:38] [INFO ] State equation strengthened by 24 read => feed constraints.
[2025-06-01 07:32:38] [INFO ] Implicit Places using invariants and state equation in 216 ms returned []
Implicit Place search using SMT with State Equation took 352 ms to find 0 implicit places.
[2025-06-01 07:32:38] [INFO ] Redundant transitions in 1 ms returned []
Running 244 sub problems to find dead transitions.
[2025-06-01 07:32:38] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
[2025-06-01 07:32:38] [INFO ] Invariant cache hit.
[2025-06-01 07:32:38] [INFO ] State equation strengthened by 24 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/99 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/99 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 2 (OVERLAPS) 155/254 variables, 99/102 constraints. Problems are: Problem set: 0 solved, 244 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/254 variables, 24/126 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/254 variables, 0/126 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 5 (OVERLAPS) 0/254 variables, 0/126 constraints. Problems are: Problem set: 0 solved, 244 unsolved
No progress, stopping.
After SMT solving in domain Real declared 254/254 variables, and 126 constraints, problems are : Problem set: 0 solved, 244 unsolved in 6142 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 99/99 constraints, ReadFeed: 24/24 constraints, PredecessorRefiner: 244/244 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 244 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/99 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/99 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 2 (OVERLAPS) 155/254 variables, 99/102 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/254 variables, 24/126 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/254 variables, 244/370 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/254 variables, 0/370 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 6 (OVERLAPS) 0/254 variables, 0/370 constraints. Problems are: Problem set: 0 solved, 244 unsolved
No progress, stopping.
After SMT solving in domain Int declared 254/254 variables, and 370 constraints, problems are : Problem set: 0 solved, 244 unsolved in 8292 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 99/99 constraints, ReadFeed: 24/24 constraints, PredecessorRefiner: 244/244 constraints, Known Traps: 0/0 constraints]
After SMT, in 14612ms problems are : Problem set: 0 solved, 244 unsolved
Search for dead transitions found 0 dead transitions in 14615ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 14978 ms. Remains : 99/99 places, 246/246 transitions.
[2025-06-01 07:32:52] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
Found an invariant !
This invariant on transitions {28=1, 35=1, 39=1, 77=1, 126=1, 154=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {24=1, 73=1, 106=1, 149=1}
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 6) seen :[3, 0, 0, 2, 4, 3]
Current structural bounds on expressions (after cover walk) : Max Seen:[753, 2321, 1204, 842, 2969, 367] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 07:32:53] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
[2025-06-01 07:32:53] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[753, 2321, 1204, 842, 2969, 367] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 1329 ms. (751 steps per ms)
BEST_FIRST walk for 6000006 steps (12 resets) in 3448 ms. (1739 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[753, 2321, 1204, 842, 2969, 368] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 07:32:57] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
[2025-06-01 07:32:57] [INFO ] Invariant cache hit.
[2025-06-01 07:32:57] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:32:57] [INFO ] [Real]Absence check using state equation in 49 ms returned sat
[2025-06-01 07:32:58] [INFO ] State equation strengthened by 24 read => feed constraints.
[2025-06-01 07:32:58] [INFO ] [Real]Added 24 Read/Feed constraints in 7 ms returned sat
[2025-06-01 07:32:58] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:32:58] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:32:58] [INFO ] [Nat]Absence check using state equation in 56 ms returned sat
[2025-06-01 07:32:58] [INFO ] [Nat]Added 24 Read/Feed constraints in 7 ms returned sat
[2025-06-01 07:32:58] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 14 ms.
[2025-06-01 07:32:58] [INFO ] Added : 25 causal constraints over 7 iterations in 112 ms. Result :sat
Minimization took 47 ms.
[2025-06-01 07:32:58] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:32:58] [INFO ] [Real]Absence check using state equation in 52 ms returned sat
[2025-06-01 07:32:58] [INFO ] [Real]Added 24 Read/Feed constraints in 4 ms returned sat
[2025-06-01 07:32:58] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:32:58] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:32:58] [INFO ] [Nat]Absence check using state equation in 56 ms returned sat
[2025-06-01 07:32:58] [INFO ] [Nat]Added 24 Read/Feed constraints in 6 ms returned sat
[2025-06-01 07:32:58] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 13 ms.
[2025-06-01 07:32:58] [INFO ] Added : 24 causal constraints over 6 iterations in 102 ms. Result :sat
Minimization took 47 ms.
[2025-06-01 07:32:58] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:32:58] [INFO ] [Real]Absence check using state equation in 53 ms returned sat
[2025-06-01 07:32:58] [INFO ] [Real]Added 24 Read/Feed constraints in 6 ms returned sat
[2025-06-01 07:32:58] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:32:58] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:32:58] [INFO ] [Nat]Absence check using state equation in 53 ms returned sat
[2025-06-01 07:32:58] [INFO ] [Nat]Added 24 Read/Feed constraints in 7 ms returned sat
[2025-06-01 07:32:58] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 14 ms.
[2025-06-01 07:32:58] [INFO ] Added : 10 causal constraints over 3 iterations in 67 ms. Result :sat
Minimization took 39 ms.
[2025-06-01 07:32:59] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:32:59] [INFO ] [Real]Absence check using state equation in 54 ms returned sat
[2025-06-01 07:32:59] [INFO ] [Real]Added 24 Read/Feed constraints in 6 ms returned sat
[2025-06-01 07:32:59] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:32:59] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:32:59] [INFO ] [Nat]Absence check using state equation in 69 ms returned sat
[2025-06-01 07:32:59] [INFO ] [Nat]Added 24 Read/Feed constraints in 8 ms returned sat
[2025-06-01 07:32:59] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 17 ms.
[2025-06-01 07:32:59] [INFO ] Added : 24 causal constraints over 6 iterations in 116 ms. Result :sat
Minimization took 57 ms.
[2025-06-01 07:32:59] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:32:59] [INFO ] [Real]Absence check using state equation in 64 ms returned sat
[2025-06-01 07:32:59] [INFO ] [Real]Added 24 Read/Feed constraints in 7 ms returned sat
[2025-06-01 07:32:59] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:32:59] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:32:59] [INFO ] [Nat]Absence check using state equation in 65 ms returned sat
[2025-06-01 07:32:59] [INFO ] [Nat]Added 24 Read/Feed constraints in 6 ms returned sat
[2025-06-01 07:32:59] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 15 ms.
[2025-06-01 07:32:59] [INFO ] Added : 6 causal constraints over 3 iterations in 63 ms. Result :sat
Minimization took 36 ms.
[2025-06-01 07:32:59] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:32:59] [INFO ] [Real]Absence check using state equation in 54 ms returned sat
[2025-06-01 07:32:59] [INFO ] [Real]Added 24 Read/Feed constraints in 6 ms returned sat
[2025-06-01 07:32:59] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:32:59] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:32:59] [INFO ] [Nat]Absence check using state equation in 54 ms returned sat
[2025-06-01 07:32:59] [INFO ] [Nat]Added 24 Read/Feed constraints in 7 ms returned sat
[2025-06-01 07:32:59] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 14 ms.
[2025-06-01 07:33:00] [INFO ] Added : 17 causal constraints over 5 iterations in 86 ms. Result :sat
Minimization took 42 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[753, 2321, 1204, 842, 2969, 368] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[753, 2321, 1204, 842, 2972, 368] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Support contains 6 out of 99 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 99/99 places, 246/246 transitions.
Applied a total of 0 rules in 6 ms. Remains 99 /99 variables (removed 0) and now considering 246/246 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 6 ms. Remains : 99/99 places, 246/246 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 99/99 places, 246/246 transitions.
Applied a total of 0 rules in 9 ms. Remains 99 /99 variables (removed 0) and now considering 246/246 (removed 0) transitions.
[2025-06-01 07:33:19] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
[2025-06-01 07:33:19] [INFO ] Invariant cache hit.
[2025-06-01 07:33:19] [INFO ] Implicit Places using invariants in 119 ms returned []
[2025-06-01 07:33:19] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
[2025-06-01 07:33:19] [INFO ] Invariant cache hit.
[2025-06-01 07:33:19] [INFO ] State equation strengthened by 24 read => feed constraints.
[2025-06-01 07:33:19] [INFO ] Implicit Places using invariants and state equation in 249 ms returned []
Implicit Place search using SMT with State Equation took 374 ms to find 0 implicit places.
[2025-06-01 07:33:19] [INFO ] Redundant transitions in 1 ms returned []
Running 244 sub problems to find dead transitions.
[2025-06-01 07:33:19] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
[2025-06-01 07:33:19] [INFO ] Invariant cache hit.
[2025-06-01 07:33:19] [INFO ] State equation strengthened by 24 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/99 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/99 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 2 (OVERLAPS) 155/254 variables, 99/102 constraints. Problems are: Problem set: 0 solved, 244 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/254 variables, 24/126 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/254 variables, 0/126 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 5 (OVERLAPS) 0/254 variables, 0/126 constraints. Problems are: Problem set: 0 solved, 244 unsolved
No progress, stopping.
After SMT solving in domain Real declared 254/254 variables, and 126 constraints, problems are : Problem set: 0 solved, 244 unsolved in 6013 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 99/99 constraints, ReadFeed: 24/24 constraints, PredecessorRefiner: 244/244 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 244 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/99 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/99 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 2 (OVERLAPS) 155/254 variables, 99/102 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/254 variables, 24/126 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/254 variables, 244/370 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/254 variables, 0/370 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 6 (OVERLAPS) 0/254 variables, 0/370 constraints. Problems are: Problem set: 0 solved, 244 unsolved
No progress, stopping.
After SMT solving in domain Int declared 254/254 variables, and 370 constraints, problems are : Problem set: 0 solved, 244 unsolved in 9629 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 99/99 constraints, ReadFeed: 24/24 constraints, PredecessorRefiner: 244/244 constraints, Known Traps: 0/0 constraints]
After SMT, in 15863ms problems are : Problem set: 0 solved, 244 unsolved
Search for dead transitions found 0 dead transitions in 15866ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 16259 ms. Remains : 99/99 places, 246/246 transitions.
[2025-06-01 07:33:35] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
Found an invariant !
This invariant on transitions {28=1, 35=1, 39=1, 77=1, 126=1, 154=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {24=1, 73=1, 106=1, 149=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 36 ms. (steps per millisecond=277 ) properties (out of 6) seen :[4, 3, 3, 2, 4, 3]
Current structural bounds on expressions (after cover walk) : Max Seen:[753, 2321, 1204, 842, 2972, 368] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 07:33:35] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
[2025-06-01 07:33:35] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[753, 2321, 1204, 842, 2972, 368] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000001 steps (2 resets) in 1607 ms. (621 steps per ms)
BEST_FIRST walk for 6000006 steps (12 resets) in 3568 ms. (1681 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[753, 2321, 1204, 842, 2972, 368] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 07:33:41] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
[2025-06-01 07:33:41] [INFO ] Invariant cache hit.
[2025-06-01 07:33:41] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:33:41] [INFO ] [Real]Absence check using state equation in 56 ms returned sat
[2025-06-01 07:33:41] [INFO ] State equation strengthened by 24 read => feed constraints.
[2025-06-01 07:33:41] [INFO ] [Real]Added 24 Read/Feed constraints in 8 ms returned sat
[2025-06-01 07:33:41] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:33:41] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:33:41] [INFO ] [Nat]Absence check using state equation in 66 ms returned sat
[2025-06-01 07:33:41] [INFO ] [Nat]Added 24 Read/Feed constraints in 10 ms returned sat
[2025-06-01 07:33:41] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 18 ms.
[2025-06-01 07:33:41] [INFO ] Added : 25 causal constraints over 7 iterations in 128 ms. Result :sat
Minimization took 43 ms.
[2025-06-01 07:33:41] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:33:41] [INFO ] [Real]Absence check using state equation in 65 ms returned sat
[2025-06-01 07:33:41] [INFO ] [Real]Added 24 Read/Feed constraints in 6 ms returned sat
[2025-06-01 07:33:41] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:33:41] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:33:41] [INFO ] [Nat]Absence check using state equation in 69 ms returned sat
[2025-06-01 07:33:41] [INFO ] [Nat]Added 24 Read/Feed constraints in 7 ms returned sat
[2025-06-01 07:33:41] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 19 ms.
[2025-06-01 07:33:41] [INFO ] Added : 24 causal constraints over 6 iterations in 124 ms. Result :sat
Minimization took 46 ms.
[2025-06-01 07:33:41] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:33:42] [INFO ] [Real]Absence check using state equation in 65 ms returned sat
[2025-06-01 07:33:42] [INFO ] [Real]Added 24 Read/Feed constraints in 7 ms returned sat
[2025-06-01 07:33:42] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:33:42] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:33:42] [INFO ] [Nat]Absence check using state equation in 80 ms returned sat
[2025-06-01 07:33:42] [INFO ] [Nat]Added 24 Read/Feed constraints in 9 ms returned sat
[2025-06-01 07:33:42] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 21 ms.
[2025-06-01 07:33:42] [INFO ] Added : 10 causal constraints over 3 iterations in 104 ms. Result :sat
Minimization took 61 ms.
[2025-06-01 07:33:42] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:33:42] [INFO ] [Real]Absence check using state equation in 62 ms returned sat
[2025-06-01 07:33:42] [INFO ] [Real]Added 24 Read/Feed constraints in 8 ms returned sat
[2025-06-01 07:33:42] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:33:42] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:33:42] [INFO ] [Nat]Absence check using state equation in 65 ms returned sat
[2025-06-01 07:33:42] [INFO ] [Nat]Added 24 Read/Feed constraints in 9 ms returned sat
[2025-06-01 07:33:42] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 15 ms.
[2025-06-01 07:33:42] [INFO ] Added : 24 causal constraints over 6 iterations in 114 ms. Result :sat
Minimization took 42 ms.
[2025-06-01 07:33:42] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:33:42] [INFO ] [Real]Absence check using state equation in 64 ms returned sat
[2025-06-01 07:33:42] [INFO ] [Real]Added 24 Read/Feed constraints in 6 ms returned sat
[2025-06-01 07:33:42] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:33:42] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:33:42] [INFO ] [Nat]Absence check using state equation in 65 ms returned sat
[2025-06-01 07:33:43] [INFO ] [Nat]Added 24 Read/Feed constraints in 8 ms returned sat
[2025-06-01 07:33:43] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 19 ms.
[2025-06-01 07:33:43] [INFO ] Added : 6 causal constraints over 3 iterations in 74 ms. Result :sat
Minimization took 35 ms.
[2025-06-01 07:33:43] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:33:43] [INFO ] [Real]Absence check using state equation in 77 ms returned sat
[2025-06-01 07:33:43] [INFO ] [Real]Added 24 Read/Feed constraints in 9 ms returned sat
[2025-06-01 07:33:43] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:33:43] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:33:43] [INFO ] [Nat]Absence check using state equation in 54 ms returned sat
[2025-06-01 07:33:43] [INFO ] [Nat]Added 24 Read/Feed constraints in 6 ms returned sat
[2025-06-01 07:33:43] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 13 ms.
[2025-06-01 07:33:43] [INFO ] Added : 17 causal constraints over 5 iterations in 87 ms. Result :sat
Minimization took 40 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[753, 2321, 1204, 842, 2972, 368] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[753, 2321, 1204, 842, 2974, 376] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Support contains 6 out of 99 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 99/99 places, 246/246 transitions.
Applied a total of 0 rules in 5 ms. Remains 99 /99 variables (removed 0) and now considering 246/246 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 5 ms. Remains : 99/99 places, 246/246 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 99/99 places, 246/246 transitions.
Applied a total of 0 rules in 4 ms. Remains 99 /99 variables (removed 0) and now considering 246/246 (removed 0) transitions.
[2025-06-01 07:34:01] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
[2025-06-01 07:34:01] [INFO ] Invariant cache hit.
[2025-06-01 07:34:01] [INFO ] Implicit Places using invariants in 158 ms returned []
[2025-06-01 07:34:01] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
[2025-06-01 07:34:01] [INFO ] Invariant cache hit.
[2025-06-01 07:34:01] [INFO ] State equation strengthened by 24 read => feed constraints.
[2025-06-01 07:34:01] [INFO ] Implicit Places using invariants and state equation in 278 ms returned []
Implicit Place search using SMT with State Equation took 442 ms to find 0 implicit places.
[2025-06-01 07:34:01] [INFO ] Redundant transitions in 2 ms returned []
Running 244 sub problems to find dead transitions.
[2025-06-01 07:34:01] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
[2025-06-01 07:34:01] [INFO ] Invariant cache hit.
[2025-06-01 07:34:01] [INFO ] State equation strengthened by 24 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/99 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/99 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 2 (OVERLAPS) 155/254 variables, 99/102 constraints. Problems are: Problem set: 0 solved, 244 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/254 variables, 24/126 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/254 variables, 0/126 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 5 (OVERLAPS) 0/254 variables, 0/126 constraints. Problems are: Problem set: 0 solved, 244 unsolved
No progress, stopping.
After SMT solving in domain Real declared 254/254 variables, and 126 constraints, problems are : Problem set: 0 solved, 244 unsolved in 7042 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 99/99 constraints, ReadFeed: 24/24 constraints, PredecessorRefiner: 244/244 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 244 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/99 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/99 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 2 (OVERLAPS) 155/254 variables, 99/102 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/254 variables, 24/126 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/254 variables, 244/370 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/254 variables, 0/370 constraints. Problems are: Problem set: 0 solved, 244 unsolved
At refinement iteration 6 (OVERLAPS) 0/254 variables, 0/370 constraints. Problems are: Problem set: 0 solved, 244 unsolved
No progress, stopping.
After SMT solving in domain Int declared 254/254 variables, and 370 constraints, problems are : Problem set: 0 solved, 244 unsolved in 8350 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 99/99 constraints, ReadFeed: 24/24 constraints, PredecessorRefiner: 244/244 constraints, Known Traps: 0/0 constraints]
After SMT, in 15685ms problems are : Problem set: 0 solved, 244 unsolved
Search for dead transitions found 0 dead transitions in 15691ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 16147 ms. Remains : 99/99 places, 246/246 transitions.
[2025-06-01 07:34:17] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
Found an invariant !
This invariant on transitions {28=1, 35=1, 39=1, 77=1, 126=1, 154=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {24=1, 73=1, 106=1, 149=1}
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 6) seen :[3, 4, 2, 3, 2147483647, 2147483647]
Current structural bounds on expressions (after cover walk) : Max Seen:[753, 2321, 1204, 842, +inf, +inf] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 07:34:17] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
[2025-06-01 07:34:17] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[753, 2321, 1204, 842, +inf, +inf] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 1686 ms. (592 steps per ms)
FORMULA FunctionPointer-PT-b004-UpperBounds-15 +inf TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA FunctionPointer-PT-b004-UpperBounds-13 +inf TECHNIQUES TOPOLOGICAL RANDOM_WALK
BEST_FIRST walk for 4000004 steps (8 resets) in 2250 ms. (1776 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[753, 2321, 1204, 842] Max Struct:[+inf, +inf, +inf, +inf]
[2025-06-01 07:34:21] [INFO ] Flow matrix only has 155 transitions (discarded 91 similar events)
[2025-06-01 07:34:21] [INFO ] Invariant cache hit.
[2025-06-01 07:34:21] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:34:21] [INFO ] [Real]Absence check using state equation in 52 ms returned sat
[2025-06-01 07:34:21] [INFO ] State equation strengthened by 24 read => feed constraints.
[2025-06-01 07:34:21] [INFO ] [Real]Added 24 Read/Feed constraints in 7 ms returned sat
[2025-06-01 07:34:21] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:34:21] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:34:21] [INFO ] [Nat]Absence check using state equation in 52 ms returned sat
[2025-06-01 07:34:21] [INFO ] [Nat]Added 24 Read/Feed constraints in 6 ms returned sat
[2025-06-01 07:34:21] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 14 ms.
[2025-06-01 07:34:22] [INFO ] Added : 25 causal constraints over 7 iterations in 104 ms. Result :sat
Minimization took 42 ms.
[2025-06-01 07:34:22] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:34:22] [INFO ] [Real]Absence check using state equation in 54 ms returned sat
[2025-06-01 07:34:22] [INFO ] [Real]Added 24 Read/Feed constraints in 5 ms returned sat
[2025-06-01 07:34:22] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:34:22] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:34:22] [INFO ] [Nat]Absence check using state equation in 67 ms returned sat
[2025-06-01 07:34:22] [INFO ] [Nat]Added 24 Read/Feed constraints in 7 ms returned sat
[2025-06-01 07:34:22] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 14 ms.
[2025-06-01 07:34:22] [INFO ] Added : 24 causal constraints over 6 iterations in 132 ms. Result :sat
Minimization took 69 ms.
[2025-06-01 07:34:22] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:34:22] [INFO ] [Real]Absence check using state equation in 53 ms returned sat
[2025-06-01 07:34:22] [INFO ] [Real]Added 24 Read/Feed constraints in 6 ms returned sat
[2025-06-01 07:34:22] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:34:22] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:34:22] [INFO ] [Nat]Absence check using state equation in 67 ms returned sat
[2025-06-01 07:34:22] [INFO ] [Nat]Added 24 Read/Feed constraints in 8 ms returned sat
[2025-06-01 07:34:22] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 16 ms.
[2025-06-01 07:34:22] [INFO ] Added : 10 causal constraints over 3 iterations in 87 ms. Result :sat
Minimization took 60 ms.
[2025-06-01 07:34:22] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:34:23] [INFO ] [Real]Absence check using state equation in 75 ms returned sat
[2025-06-01 07:34:23] [INFO ] [Real]Added 24 Read/Feed constraints in 10 ms returned sat
[2025-06-01 07:34:23] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:34:23] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:34:23] [INFO ] [Nat]Absence check using state equation in 71 ms returned sat
[2025-06-01 07:34:23] [INFO ] [Nat]Added 24 Read/Feed constraints in 11 ms returned sat
[2025-06-01 07:34:23] [INFO ] Computed and/alt/rep : 66/299/62 causal constraints (skipped 91 transitions) in 14 ms.
[2025-06-01 07:34:23] [INFO ] Added : 24 causal constraints over 6 iterations in 126 ms. Result :sat
Minimization took 55 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[753, 2321, 1204, 842] Max Struct:[+inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[753, 2321, 1204, 842] Max Struct:[+inf, +inf, +inf, +inf]
Support contains 4 out of 99 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 99/99 places, 246/246 transitions.
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 1 place count 98 transition count 242
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 98 transition count 242
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 3 place count 97 transition count 240
Iterating global reduction 0 with 1 rules applied. Total rules applied 4 place count 97 transition count 240
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 5 place count 96 transition count 236
Iterating global reduction 0 with 1 rules applied. Total rules applied 6 place count 96 transition count 236
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 7 place count 95 transition count 234
Iterating global reduction 0 with 1 rules applied. Total rules applied 8 place count 95 transition count 234
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 9 place count 94 transition count 232
Iterating global reduction 0 with 1 rules applied. Total rules applied 10 place count 94 transition count 232
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 11 place count 93 transition count 230
Iterating global reduction 0 with 1 rules applied. Total rules applied 12 place count 93 transition count 230
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 13 place count 92 transition count 228
Iterating global reduction 0 with 1 rules applied. Total rules applied 14 place count 92 transition count 228
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 15 place count 91 transition count 226
Iterating global reduction 0 with 1 rules applied. Total rules applied 16 place count 91 transition count 226
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 17 place count 90 transition count 224
Iterating global reduction 0 with 1 rules applied. Total rules applied 18 place count 90 transition count 224
Applied a total of 18 rules in 18 ms. Remains 90 /99 variables (removed 9) and now considering 224/246 (removed 22) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 18 ms. Remains : 90/99 places, 224/246 transitions.
[2025-06-01 07:34:37] [INFO ] Flow matrix only has 139 transitions (discarded 85 similar events)
Found an invariant !
This invariant on transitions {28=1, 68=1, 115=1, 136=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {24=1, 64=1, 111=1, 137=1}
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 4) seen :[3, 6, 3, 2]
Current structural bounds on expressions (after cover walk) : Max Seen:[753, 2321, 1204, 842] Max Struct:[+inf, +inf, +inf, +inf]
[2025-06-01 07:34:37] [INFO ] Flow matrix only has 139 transitions (discarded 85 similar events)
// Phase 1: matrix 139 rows 90 cols
[2025-06-01 07:34:37] [INFO ] Computed 3 invariants in 1 ms
Current structural bounds on expressions (after invariants) : Max Seen:[753, 2321, 1204, 842] Max Struct:[+inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 1183 ms. (844 steps per ms)
BEST_FIRST walk for 4000004 steps (8 resets) in 2187 ms. (1828 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[753, 2321, 1204, 1877] Max Struct:[+inf, +inf, +inf, +inf]
[2025-06-01 07:34:40] [INFO ] Flow matrix only has 139 transitions (discarded 85 similar events)
[2025-06-01 07:34:40] [INFO ] Invariant cache hit.
[2025-06-01 07:34:40] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:34:40] [INFO ] [Real]Absence check using state equation in 68 ms returned sat
[2025-06-01 07:34:40] [INFO ] State equation strengthened by 21 read => feed constraints.
[2025-06-01 07:34:40] [INFO ] [Real]Added 21 Read/Feed constraints in 8 ms returned sat
[2025-06-01 07:34:40] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:34:41] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:34:41] [INFO ] [Nat]Absence check using state equation in 67 ms returned sat
[2025-06-01 07:34:41] [INFO ] [Nat]Added 21 Read/Feed constraints in 8 ms returned sat
[2025-06-01 07:34:41] [INFO ] Deduced a trap composed of 25 places in 82 ms of which 2 ms to minimize.
[2025-06-01 07:34:41] [INFO ] Deduced a trap composed of 21 places in 97 ms of which 2 ms to minimize.
[2025-06-01 07:34:41] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 206 ms
[2025-06-01 07:34:41] [INFO ] Computed and/alt/rep : 62/242/57 causal constraints (skipped 80 transitions) in 14 ms.
[2025-06-01 07:34:41] [INFO ] Added : 18 causal constraints over 4 iterations in 94 ms. Result :sat
Minimization took 57 ms.
[2025-06-01 07:34:41] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:34:41] [INFO ] [Real]Absence check using state equation in 63 ms returned sat
[2025-06-01 07:34:41] [INFO ] [Real]Added 21 Read/Feed constraints in 9 ms returned sat
[2025-06-01 07:34:41] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:34:41] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:34:41] [INFO ] [Nat]Absence check using state equation in 83 ms returned sat
[2025-06-01 07:34:41] [INFO ] [Nat]Added 21 Read/Feed constraints in 9 ms returned sat
[2025-06-01 07:34:41] [INFO ] Deduced a trap composed of 29 places in 63 ms of which 2 ms to minimize.
[2025-06-01 07:34:41] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 80 ms
[2025-06-01 07:34:41] [INFO ] Computed and/alt/rep : 62/242/57 causal constraints (skipped 80 transitions) in 14 ms.
[2025-06-01 07:34:41] [INFO ] Added : 16 causal constraints over 4 iterations in 89 ms. Result :sat
Minimization took 52 ms.
[2025-06-01 07:34:41] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:34:42] [INFO ] [Real]Absence check using state equation in 47 ms returned sat
[2025-06-01 07:34:42] [INFO ] [Real]Added 21 Read/Feed constraints in 6 ms returned sat
[2025-06-01 07:34:42] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:34:42] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:34:42] [INFO ] [Nat]Absence check using state equation in 47 ms returned sat
[2025-06-01 07:34:42] [INFO ] [Nat]Added 21 Read/Feed constraints in 6 ms returned sat
[2025-06-01 07:34:42] [INFO ] Deduced a trap composed of 25 places in 85 ms of which 2 ms to minimize.
[2025-06-01 07:34:42] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 97 ms
[2025-06-01 07:34:42] [INFO ] Computed and/alt/rep : 62/242/57 causal constraints (skipped 80 transitions) in 11 ms.
[2025-06-01 07:34:42] [INFO ] Added : 21 causal constraints over 5 iterations in 80 ms. Result :sat
Minimization took 33 ms.
[2025-06-01 07:34:42] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:34:42] [INFO ] [Real]Absence check using state equation in 67 ms returned sat
[2025-06-01 07:34:42] [INFO ] [Real]Added 21 Read/Feed constraints in 9 ms returned sat
[2025-06-01 07:34:42] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:34:42] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:34:42] [INFO ] [Nat]Absence check using state equation in 64 ms returned sat
[2025-06-01 07:34:42] [INFO ] [Nat]Added 21 Read/Feed constraints in 8 ms returned sat
[2025-06-01 07:34:42] [INFO ] Deduced a trap composed of 25 places in 78 ms of which 1 ms to minimize.
[2025-06-01 07:34:42] [INFO ] Deduced a trap composed of 29 places in 60 ms of which 1 ms to minimize.
[2025-06-01 07:34:42] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 159 ms
[2025-06-01 07:34:42] [INFO ] Computed and/alt/rep : 62/242/57 causal constraints (skipped 80 transitions) in 11 ms.
[2025-06-01 07:34:42] [INFO ] Added : 16 causal constraints over 4 iterations in 66 ms. Result :sat
Minimization took 34 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[753, 2321, 1204, 1877] Max Struct:[+inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[753, 2321, 1204, 1877] Max Struct:[+inf, +inf, +inf, +inf]
Support contains 4 out of 90 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 90/90 places, 224/224 transitions.
Applied a total of 0 rules in 4 ms. Remains 90 /90 variables (removed 0) and now considering 224/224 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 4 ms. Remains : 90/90 places, 224/224 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 90/90 places, 224/224 transitions.
Applied a total of 0 rules in 3 ms. Remains 90 /90 variables (removed 0) and now considering 224/224 (removed 0) transitions.
[2025-06-01 07:34:56] [INFO ] Flow matrix only has 139 transitions (discarded 85 similar events)
[2025-06-01 07:34:56] [INFO ] Invariant cache hit.
[2025-06-01 07:34:56] [INFO ] Implicit Places using invariants in 125 ms returned []
[2025-06-01 07:34:56] [INFO ] Flow matrix only has 139 transitions (discarded 85 similar events)
[2025-06-01 07:34:56] [INFO ] Invariant cache hit.
[2025-06-01 07:34:57] [INFO ] State equation strengthened by 21 read => feed constraints.
[2025-06-01 07:34:57] [INFO ] Implicit Places using invariants and state equation in 204 ms returned []
Implicit Place search using SMT with State Equation took 331 ms to find 0 implicit places.
[2025-06-01 07:34:57] [INFO ] Redundant transitions in 1 ms returned []
Running 222 sub problems to find dead transitions.
[2025-06-01 07:34:57] [INFO ] Flow matrix only has 139 transitions (discarded 85 similar events)
[2025-06-01 07:34:57] [INFO ] Invariant cache hit.
[2025-06-01 07:34:57] [INFO ] State equation strengthened by 21 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/90 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 222 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/90 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 222 unsolved
At refinement iteration 2 (OVERLAPS) 139/229 variables, 90/93 constraints. Problems are: Problem set: 0 solved, 222 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/229 variables, 21/114 constraints. Problems are: Problem set: 0 solved, 222 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/229 variables, 0/114 constraints. Problems are: Problem set: 0 solved, 222 unsolved
At refinement iteration 5 (OVERLAPS) 0/229 variables, 0/114 constraints. Problems are: Problem set: 0 solved, 222 unsolved
No progress, stopping.
After SMT solving in domain Real declared 229/229 variables, and 114 constraints, problems are : Problem set: 0 solved, 222 unsolved in 6490 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 90/90 constraints, ReadFeed: 21/21 constraints, PredecessorRefiner: 222/222 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 222 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/90 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 222 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/90 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 222 unsolved
At refinement iteration 2 (OVERLAPS) 139/229 variables, 90/93 constraints. Problems are: Problem set: 0 solved, 222 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/229 variables, 21/114 constraints. Problems are: Problem set: 0 solved, 222 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/229 variables, 222/336 constraints. Problems are: Problem set: 0 solved, 222 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/229 variables, 0/336 constraints. Problems are: Problem set: 0 solved, 222 unsolved
At refinement iteration 6 (OVERLAPS) 0/229 variables, 0/336 constraints. Problems are: Problem set: 0 solved, 222 unsolved
No progress, stopping.
After SMT solving in domain Int declared 229/229 variables, and 336 constraints, problems are : Problem set: 0 solved, 222 unsolved in 8518 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 90/90 constraints, ReadFeed: 21/21 constraints, PredecessorRefiner: 222/222 constraints, Known Traps: 0/0 constraints]
After SMT, in 15190ms problems are : Problem set: 0 solved, 222 unsolved
Search for dead transitions found 0 dead transitions in 15194ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 15535 ms. Remains : 90/90 places, 224/224 transitions.
[2025-06-01 07:35:12] [INFO ] Flow matrix only has 139 transitions (discarded 85 similar events)
Found an invariant !
This invariant on transitions {28=1, 68=1, 115=1, 136=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {24=1, 64=1, 111=1, 137=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 30 ms. (steps per millisecond=333 ) properties (out of 4) seen :[0, 4, 3, 0]
Current structural bounds on expressions (after cover walk) : Max Seen:[753, 2321, 1204, 1877] Max Struct:[+inf, +inf, +inf, +inf]
[2025-06-01 07:35:12] [INFO ] Flow matrix only has 139 transitions (discarded 85 similar events)
[2025-06-01 07:35:12] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[753, 2321, 1204, 1877] Max Struct:[+inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 1458 ms. (685 steps per ms)
BEST_FIRST walk for 4000003 steps (8 resets) in 2212 ms. (1807 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[753, 2321, 1204, 1877] Max Struct:[+inf, +inf, +inf, +inf]
[2025-06-01 07:35:16] [INFO ] Flow matrix only has 139 transitions (discarded 85 similar events)
[2025-06-01 07:35:16] [INFO ] Invariant cache hit.
[2025-06-01 07:35:16] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:35:16] [INFO ] [Real]Absence check using state equation in 50 ms returned sat
[2025-06-01 07:35:16] [INFO ] State equation strengthened by 21 read => feed constraints.
[2025-06-01 07:35:16] [INFO ] [Real]Added 21 Read/Feed constraints in 6 ms returned sat
[2025-06-01 07:35:16] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:35:16] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:35:16] [INFO ] [Nat]Absence check using state equation in 46 ms returned sat
[2025-06-01 07:35:16] [INFO ] [Nat]Added 21 Read/Feed constraints in 5 ms returned sat
[2025-06-01 07:35:16] [INFO ] Deduced a trap composed of 25 places in 66 ms of which 2 ms to minimize.
[2025-06-01 07:35:16] [INFO ] Deduced a trap composed of 21 places in 63 ms of which 2 ms to minimize.
[2025-06-01 07:35:16] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 148 ms
[2025-06-01 07:35:16] [INFO ] Computed and/alt/rep : 62/242/57 causal constraints (skipped 80 transitions) in 11 ms.
[2025-06-01 07:35:16] [INFO ] Added : 18 causal constraints over 4 iterations in 66 ms. Result :sat
Minimization took 55 ms.
[2025-06-01 07:35:16] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:35:16] [INFO ] [Real]Absence check using state equation in 72 ms returned sat
[2025-06-01 07:35:16] [INFO ] [Real]Added 21 Read/Feed constraints in 10 ms returned sat
[2025-06-01 07:35:16] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:35:16] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:35:16] [INFO ] [Nat]Absence check using state equation in 61 ms returned sat
[2025-06-01 07:35:16] [INFO ] [Nat]Added 21 Read/Feed constraints in 7 ms returned sat
[2025-06-01 07:35:17] [INFO ] Deduced a trap composed of 29 places in 126 ms of which 2 ms to minimize.
[2025-06-01 07:35:17] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 141 ms
[2025-06-01 07:35:17] [INFO ] Computed and/alt/rep : 62/242/57 causal constraints (skipped 80 transitions) in 14 ms.
[2025-06-01 07:35:17] [INFO ] Added : 16 causal constraints over 4 iterations in 82 ms. Result :sat
Minimization took 33 ms.
[2025-06-01 07:35:17] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 07:35:17] [INFO ] [Real]Absence check using state equation in 72 ms returned sat
[2025-06-01 07:35:17] [INFO ] [Real]Added 21 Read/Feed constraints in 8 ms returned sat
[2025-06-01 07:35:17] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:35:17] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 07:35:17] [INFO ] [Nat]Absence check using state equation in 73 ms returned sat
[2025-06-01 07:35:17] [INFO ] [Nat]Added 21 Read/Feed constraints in 10 ms returned sat
[2025-06-01 07:35:17] [INFO ] Deduced a trap composed of 25 places in 71 ms of which 2 ms to minimize.
[2025-06-01 07:35:17] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 91 ms
[2025-06-01 07:35:17] [INFO ] Computed and/alt/rep : 62/242/57 causal constraints (skipped 80 transitions) in 17 ms.
[2025-06-01 07:35:17] [INFO ] Added : 21 causal constraints over 5 iterations in 130 ms. Result :sat
Minimization took 54 ms.
[2025-06-01 07:35:17] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:35:17] [INFO ] [Real]Absence check using state equation in 60 ms returned sat
[2025-06-01 07:35:17] [INFO ] [Real]Added 21 Read/Feed constraints in 7 ms returned sat
[2025-06-01 07:35:17] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:35:17] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:35:18] [INFO ] [Nat]Absence check using state equation in 64 ms returned sat
[2025-06-01 07:35:18] [INFO ] [Nat]Added 21 Read/Feed constraints in 7 ms returned sat
[2025-06-01 07:35:18] [INFO ] Deduced a trap composed of 25 places in 118 ms of which 3 ms to minimize.
[2025-06-01 07:35:18] [INFO ] Deduced a trap composed of 29 places in 116 ms of which 2 ms to minimize.
[2025-06-01 07:35:18] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 257 ms
[2025-06-01 07:35:18] [INFO ] Computed and/alt/rep : 62/242/57 causal constraints (skipped 80 transitions) in 15 ms.
[2025-06-01 07:35:18] [INFO ] Added : 16 causal constraints over 4 iterations in 84 ms. Result :sat
Minimization took 34 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[753, 2321, 1204, 1877] Max Struct:[+inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[753, 2321, 1204, 1877] Max Struct:[+inf, +inf, +inf, +inf]
Support contains 4 out of 90 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 90/90 places, 224/224 transitions.
Applied a total of 0 rules in 3 ms. Remains 90 /90 variables (removed 0) and now considering 224/224 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 4 ms. Remains : 90/90 places, 224/224 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 90/90 places, 224/224 transitions.
Applied a total of 0 rules in 4 ms. Remains 90 /90 variables (removed 0) and now considering 224/224 (removed 0) transitions.
[2025-06-01 07:35:33] [INFO ] Flow matrix only has 139 transitions (discarded 85 similar events)
[2025-06-01 07:35:33] [INFO ] Invariant cache hit.
[2025-06-01 07:35:33] [INFO ] Implicit Places using invariants in 130 ms returned []
[2025-06-01 07:35:33] [INFO ] Flow matrix only has 139 transitions (discarded 85 similar events)
[2025-06-01 07:35:33] [INFO ] Invariant cache hit.
[2025-06-01 07:35:34] [INFO ] State equation strengthened by 21 read => feed constraints.
[2025-06-01 07:35:34] [INFO ] Implicit Places using invariants and state equation in 188 ms returned []
Implicit Place search using SMT with State Equation took 335 ms to find 0 implicit places.
[2025-06-01 07:35:34] [INFO ] Redundant transitions in 1 ms returned []
Running 222 sub problems to find dead transitions.
[2025-06-01 07:35:34] [INFO ] Flow matrix only has 139 transitions (discarded 85 similar events)
[2025-06-01 07:35:34] [INFO ] Invariant cache hit.
[2025-06-01 07:35:34] [INFO ] State equation strengthened by 21 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/90 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 222 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/90 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 222 unsolved
At refinement iteration 2 (OVERLAPS) 139/229 variables, 90/93 constraints. Problems are: Problem set: 0 solved, 222 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/229 variables, 21/114 constraints. Problems are: Problem set: 0 solved, 222 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/229 variables, 0/114 constraints. Problems are: Problem set: 0 solved, 222 unsolved
At refinement iteration 5 (OVERLAPS) 0/229 variables, 0/114 constraints. Problems are: Problem set: 0 solved, 222 unsolved
No progress, stopping.
After SMT solving in domain Real declared 229/229 variables, and 114 constraints, problems are : Problem set: 0 solved, 222 unsolved in 5564 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 90/90 constraints, ReadFeed: 21/21 constraints, PredecessorRefiner: 222/222 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 222 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/90 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 222 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/90 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 222 unsolved
At refinement iteration 2 (OVERLAPS) 139/229 variables, 90/93 constraints. Problems are: Problem set: 0 solved, 222 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/229 variables, 21/114 constraints. Problems are: Problem set: 0 solved, 222 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/229 variables, 222/336 constraints. Problems are: Problem set: 0 solved, 222 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/229 variables, 0/336 constraints. Problems are: Problem set: 0 solved, 222 unsolved
At refinement iteration 6 (OVERLAPS) 0/229 variables, 0/336 constraints. Problems are: Problem set: 0 solved, 222 unsolved
No progress, stopping.
After SMT solving in domain Int declared 229/229 variables, and 336 constraints, problems are : Problem set: 0 solved, 222 unsolved in 9002 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 90/90 constraints, ReadFeed: 21/21 constraints, PredecessorRefiner: 222/222 constraints, Known Traps: 0/0 constraints]
After SMT, in 14729ms problems are : Problem set: 0 solved, 222 unsolved
Search for dead transitions found 0 dead transitions in 14731ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 15077 ms. Remains : 90/90 places, 224/224 transitions.
[2025-06-01 07:35:48] [INFO ] Flow matrix only has 139 transitions (discarded 85 similar events)
Found an invariant !
This invariant on transitions {28=1, 68=1, 115=1, 136=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {24=1, 64=1, 111=1, 137=1}
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 4) seen :[4, 0, 0, 4]
Current structural bounds on expressions (after cover walk) : Max Seen:[753, 2321, 1204, 1877] Max Struct:[+inf, +inf, +inf, +inf]
RANDOM walk for 40002 steps (8 resets) in 1774 ms. (22 steps per ms) remains 4/4 properties
BEST_FIRST walk for 40004 steps (8 resets) in 184 ms. (216 steps per ms) remains 4/4 properties
BEST_FIRST walk for 40002 steps (8 resets) in 214 ms. (186 steps per ms) remains 4/4 properties
BEST_FIRST walk for 40004 steps (8 resets) in 144 ms. (275 steps per ms) remains 4/4 properties
BEST_FIRST walk for 40004 steps (8 resets) in 130 ms. (305 steps per ms) remains 4/4 properties
[2025-06-01 07:35:49] [INFO ] Flatten gal took : 118 ms
[2025-06-01 07:35:50] [INFO ] Flatten gal took : 58 ms
[2025-06-01 07:35:50] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality17865354777925740598.gal : 21 ms
[2025-06-01 07:35:50] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality5944021407306015285.prop : 1 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202405141337/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality17865354777925740598.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality5944021407306015285.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202405141337/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...329
Loading property file /tmp/ReachabilityCardinality5944021407306015285.prop.
SDD proceeding with computation,4 properties remain. new max is 4
SDD size :1 after 31
SDD proceeding with computation,4 properties remain. new max is 8
SDD size :31 after 933
SDD proceeding with computation,4 properties remain. new max is 16
SDD size :933 after 47926
SDD proceeding with computation,4 properties remain. new max is 32
SDD size :47926 after 636870
SDD proceeding with computation,4 properties remain. new max is 64
SDD size :636870 after 1.61753e+06
Interrupted probabilistic random walk after 240602 steps, run timeout after 3001 ms. (steps per millisecond=80 ) properties seen :0 out of 4
Probabilistic random walk after 240602 steps, saw 153152 distinct states, run finished after 3008 ms. (steps per millisecond=79 ) properties seen :0
[2025-06-01 07:35:52] [INFO ] Flow matrix only has 139 transitions (discarded 85 similar events)
[2025-06-01 07:35:52] [INFO ] Invariant cache hit.
[2025-06-01 07:35:52] [INFO ] State equation strengthened by 21 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/4 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 1 (OVERLAPS) 9/13 variables, 4/4 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/13 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 3 (OVERLAPS) 88/101 variables, 11/15 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/101 variables, 1/16 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/101 variables, 0/16 constraints. Problems are: Problem set: 0 solved, 4 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (OVERLAPS) 9/110 variables, 2/18 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/110 variables, 3/21 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/110 variables, 0/21 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 9 (OVERLAPS) 105/215 variables, 62/83 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/215 variables, 20/103 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/215 variables, 0/103 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 12 (OVERLAPS) 6/221 variables, 1/104 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/221 variables, 0/104 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 14 (OVERLAPS) 8/229 variables, 10/114 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/229 variables, 0/114 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 16 (OVERLAPS) 0/229 variables, 0/114 constraints. Problems are: Problem set: 0 solved, 4 unsolved
No progress, stopping.
After SMT solving in domain Real declared 229/229 variables, and 114 constraints, problems are : Problem set: 0 solved, 4 unsolved in 225 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 90/90 constraints, ReadFeed: 21/21 constraints, PredecessorRefiner: 4/4 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 4 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/4 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 1 (OVERLAPS) 9/13 variables, 4/4 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/13 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 3 (OVERLAPS) 88/101 variables, 11/15 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/101 variables, 1/16 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/101 variables, 4/20 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/101 variables, 0/20 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 7 (OVERLAPS) 9/110 variables, 2/22 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/110 variables, 3/25 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/110 variables, 0/25 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 10 (OVERLAPS) 105/215 variables, 62/87 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/215 variables, 20/107 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/215 variables, 0/107 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 13 (OVERLAPS) 6/221 variables, 1/108 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/221 variables, 0/108 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 15 (OVERLAPS) 8/229 variables, 10/118 constraints. Problems are: Problem set: 0 solved, 4 unsolved
SDD proceeding with computation,4 properties remain. new max is 128
SDD size :1.61753e+06 after 3.53764e+06
At refinement iteration 16 (INCLUDED_ONLY) 0/229 variables, 0/118 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 17 (OVERLAPS) 0/229 variables, 0/118 constraints. Problems are: Problem set: 0 solved, 4 unsolved
No progress, stopping.
After SMT solving in domain Int declared 229/229 variables, and 118 constraints, problems are : Problem set: 0 solved, 4 unsolved in 333 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 90/90 constraints, ReadFeed: 21/21 constraints, PredecessorRefiner: 4/4 constraints, Known Traps: 0/0 constraints]
After SMT, in 566ms problems are : Problem set: 0 solved, 4 unsolved
Fused 4 Parikh solutions to 1 different solutions.
SDD proceeding with computation,4 properties remain. new max is 256
SDD size :3.53764e+06 after 7.34796e+06
SDD proceeding with computation,4 properties remain. new max is 512
SDD size :7.34796e+06 after 1.49398e+07
Parikh walk visited 0 properties in 30001 ms.
Support contains 4 out of 90 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 90/90 places, 224/224 transitions.
Applied a total of 0 rules in 4 ms. Remains 90 /90 variables (removed 0) and now considering 224/224 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 5 ms. Remains : 90/90 places, 224/224 transitions.
RANDOM walk for 40002 steps (8 resets) in 125 ms. (317 steps per ms) remains 4/4 properties
BEST_FIRST walk for 40003 steps (8 resets) in 118 ms. (336 steps per ms) remains 4/4 properties
BEST_FIRST walk for 40004 steps (8 resets) in 85 ms. (465 steps per ms) remains 4/4 properties
BEST_FIRST walk for 40003 steps (8 resets) in 83 ms. (476 steps per ms) remains 4/4 properties
BEST_FIRST walk for 40003 steps (8 resets) in 74 ms. (533 steps per ms) remains 4/4 properties
SDD proceeding with computation,4 properties remain. new max is 1024
SDD size :1.49398e+07 after 3.00946e+07
Interrupted probabilistic random walk after 268027 steps, run timeout after 3001 ms. (steps per millisecond=89 ) properties seen :0 out of 4
Probabilistic random walk after 268027 steps, saw 171977 distinct states, run finished after 3003 ms. (steps per millisecond=89 ) properties seen :0
[2025-06-01 07:36:26] [INFO ] Flow matrix only has 139 transitions (discarded 85 similar events)
[2025-06-01 07:36:26] [INFO ] Invariant cache hit.
[2025-06-01 07:36:26] [INFO ] State equation strengthened by 21 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/4 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 1 (OVERLAPS) 9/13 variables, 4/4 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/13 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 3 (OVERLAPS) 88/101 variables, 11/15 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/101 variables, 1/16 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/101 variables, 0/16 constraints. Problems are: Problem set: 0 solved, 4 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (OVERLAPS) 9/110 variables, 2/18 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/110 variables, 3/21 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/110 variables, 0/21 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 9 (OVERLAPS) 105/215 variables, 62/83 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/215 variables, 20/103 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/215 variables, 0/103 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 12 (OVERLAPS) 6/221 variables, 1/104 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/221 variables, 0/104 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 14 (OVERLAPS) 8/229 variables, 10/114 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/229 variables, 0/114 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 16 (OVERLAPS) 0/229 variables, 0/114 constraints. Problems are: Problem set: 0 solved, 4 unsolved
No progress, stopping.
After SMT solving in domain Real declared 229/229 variables, and 114 constraints, problems are : Problem set: 0 solved, 4 unsolved in 223 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 90/90 constraints, ReadFeed: 21/21 constraints, PredecessorRefiner: 4/4 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 4 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/4 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 1 (OVERLAPS) 9/13 variables, 4/4 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/13 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 3 (OVERLAPS) 88/101 variables, 11/15 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/101 variables, 1/16 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/101 variables, 4/20 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/101 variables, 0/20 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 7 (OVERLAPS) 9/110 variables, 2/22 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/110 variables, 3/25 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/110 variables, 0/25 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 10 (OVERLAPS) 105/215 variables, 62/87 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/215 variables, 20/107 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/215 variables, 0/107 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 13 (OVERLAPS) 6/221 variables, 1/108 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/221 variables, 0/108 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 15 (OVERLAPS) 8/229 variables, 10/118 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/229 variables, 0/118 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 17 (OVERLAPS) 0/229 variables, 0/118 constraints. Problems are: Problem set: 0 solved, 4 unsolved
No progress, stopping.
After SMT solving in domain Int declared 229/229 variables, and 118 constraints, problems are : Problem set: 0 solved, 4 unsolved in 236 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 90/90 constraints, ReadFeed: 21/21 constraints, PredecessorRefiner: 4/4 constraints, Known Traps: 0/0 constraints]
After SMT, in 465ms problems are : Problem set: 0 solved, 4 unsolved
Fused 4 Parikh solutions to 1 different solutions.
Detected timeout of ITS tools.
[2025-06-01 07:36:40] [INFO ] Flatten gal took : 44 ms
[2025-06-01 07:36:40] [INFO ] Applying decomposition
[2025-06-01 07:36:40] [INFO ] Flatten gal took : 24 ms
Converted graph to binary with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202405141337/bin/convert-linux64' '-i' '/tmp/graph6451990138938517738.txt' '-o' '/tmp/graph6451990138938517738.bin' '-w' '/tmp/graph6451990138938517738.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202405141337/bin/louvain-linux64' '/tmp/graph6451990138938517738.bin' '-l' '-1' '-v' '-w' '/tmp/graph6451990138938517738.weights' '-q' '0' '-e' '0.001'
[2025-06-01 07:36:40] [INFO ] Decomposing Gal with order
[2025-06-01 07:36:40] [INFO ] Rewriting arrays to variables to allow decomposition.
[2025-06-01 07:36:40] [INFO ] Removed a total of 381 redundant transitions.
[2025-06-01 07:36:41] [INFO ] Flatten gal took : 298 ms
[2025-06-01 07:36:41] [INFO ] Fuse similar labels procedure discarded/fused a total of 122 labels/synchronizations in 27 ms.
[2025-06-01 07:36:41] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality2929009324022896589.gal : 14 ms
[2025-06-01 07:36:41] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality7953071120984910696.prop : 1 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202405141337/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality2929009324022896589.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality7953071120984910696.prop' '--nowitness'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202405141337/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...307
Loading property file /tmp/ReachabilityCardinality7953071120984910696.prop.
Parikh walk visited 0 properties in 30001 ms.
Support contains 4 out of 90 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 90/90 places, 224/224 transitions.
Applied a total of 0 rules in 5 ms. Remains 90 /90 variables (removed 0) and now considering 224/224 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 5 ms. Remains : 90/90 places, 224/224 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 90/90 places, 224/224 transitions.
Applied a total of 0 rules in 3 ms. Remains 90 /90 variables (removed 0) and now considering 224/224 (removed 0) transitions.
[2025-06-01 07:36:57] [INFO ] Flow matrix only has 139 transitions (discarded 85 similar events)
[2025-06-01 07:36:57] [INFO ] Invariant cache hit.
[2025-06-01 07:36:57] [INFO ] Implicit Places using invariants in 121 ms returned []
[2025-06-01 07:36:57] [INFO ] Flow matrix only has 139 transitions (discarded 85 similar events)
[2025-06-01 07:36:57] [INFO ] Invariant cache hit.
[2025-06-01 07:36:57] [INFO ] State equation strengthened by 21 read => feed constraints.
[2025-06-01 07:36:57] [INFO ] Implicit Places using invariants and state equation in 194 ms returned []
Implicit Place search using SMT with State Equation took 316 ms to find 0 implicit places.
[2025-06-01 07:36:57] [INFO ] Redundant transitions in 1 ms returned []
Running 222 sub problems to find dead transitions.
[2025-06-01 07:36:57] [INFO ] Flow matrix only has 139 transitions (discarded 85 similar events)
[2025-06-01 07:36:57] [INFO ] Invariant cache hit.
[2025-06-01 07:36:57] [INFO ] State equation strengthened by 21 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/90 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 222 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/90 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 222 unsolved
At refinement iteration 2 (OVERLAPS) 139/229 variables, 90/93 constraints. Problems are: Problem set: 0 solved, 222 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/229 variables, 21/114 constraints. Problems are: Problem set: 0 solved, 222 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/229 variables, 0/114 constraints. Problems are: Problem set: 0 solved, 222 unsolved
At refinement iteration 5 (OVERLAPS) 0/229 variables, 0/114 constraints. Problems are: Problem set: 0 solved, 222 unsolved
No progress, stopping.
After SMT solving in domain Real declared 229/229 variables, and 114 constraints, problems are : Problem set: 0 solved, 222 unsolved in 4717 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 90/90 constraints, ReadFeed: 21/21 constraints, PredecessorRefiner: 222/222 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 222 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/90 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 222 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/90 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 222 unsolved
At refinement iteration 2 (OVERLAPS) 139/229 variables, 90/93 constraints. Problems are: Problem set: 0 solved, 222 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/229 variables, 21/114 constraints. Problems are: Problem set: 0 solved, 222 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/229 variables, 222/336 constraints. Problems are: Problem set: 0 solved, 222 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/229 variables, 0/336 constraints. Problems are: Problem set: 0 solved, 222 unsolved
At refinement iteration 6 (OVERLAPS) 0/229 variables, 0/336 constraints. Problems are: Problem set: 0 solved, 222 unsolved
No progress, stopping.
After SMT solving in domain Int declared 229/229 variables, and 336 constraints, problems are : Problem set: 0 solved, 222 unsolved in 6739 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 90/90 constraints, ReadFeed: 21/21 constraints, PredecessorRefiner: 222/222 constraints, Known Traps: 0/0 constraints]
After SMT, in 11663ms problems are : Problem set: 0 solved, 222 unsolved
Search for dead transitions found 0 dead transitions in 11666ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 11994 ms. Remains : 90/90 places, 224/224 transitions.
Attempting over-approximation, by ignoring read arcs.
Ensure Unique test removed 85 transitions
Reduce isomorphic transitions removed 85 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 6 transitions
Trivial Post-agglo rules discarded 6 transitions
Performed 6 trivial Post agglomeration. Transition count delta: 6
Iterating post reduction 0 with 91 rules applied. Total rules applied 91 place count 90 transition count 133
Reduce places removed 6 places and 0 transitions.
Iterating post reduction 1 with 6 rules applied. Total rules applied 97 place count 84 transition count 133
Performed 18 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 18 Pre rules applied. Total rules applied 97 place count 84 transition count 115
Deduced a syphon composed of 18 places in 0 ms
Reduce places removed 18 places and 0 transitions.
Iterating global reduction 2 with 36 rules applied. Total rules applied 133 place count 66 transition count 115
Performed 17 Post agglomeration using F-continuation condition.Transition count delta: 17
Deduced a syphon composed of 17 places in 0 ms
Reduce places removed 17 places and 0 transitions.
Iterating global reduction 2 with 34 rules applied. Total rules applied 167 place count 49 transition count 98
Discarding 7 places :
Symmetric choice reduction at 2 with 7 rule applications. Total rules 174 place count 42 transition count 84
Iterating global reduction 2 with 7 rules applied. Total rules applied 181 place count 42 transition count 84
Discarding 7 places :
Symmetric choice reduction at 2 with 7 rule applications. Total rules 188 place count 35 transition count 70
Iterating global reduction 2 with 7 rules applied. Total rules applied 195 place count 35 transition count 70
Discarding 7 places :
Symmetric choice reduction at 2 with 7 rule applications. Total rules 202 place count 28 transition count 56
Iterating global reduction 2 with 7 rules applied. Total rules applied 209 place count 28 transition count 56
Ensure Unique test removed 7 transitions
Reduce isomorphic transitions removed 7 transitions.
Iterating post reduction 2 with 7 rules applied. Total rules applied 216 place count 28 transition count 49
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 1 Pre rules applied. Total rules applied 216 place count 28 transition count 48
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 3 with 2 rules applied. Total rules applied 218 place count 27 transition count 48
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 0
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 3 with 2 rules applied. Total rules applied 220 place count 26 transition count 48
Free-agglomeration rule applied 1 times.
Iterating global reduction 3 with 1 rules applied. Total rules applied 221 place count 26 transition count 47
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 3 with 1 rules applied. Total rules applied 222 place count 25 transition count 47
Applied a total of 222 rules in 21 ms. Remains 25 /90 variables (removed 65) and now considering 47/224 (removed 177) transitions.
Running SMT prover for 4 properties.
// Phase 1: matrix 47 rows 25 cols
[2025-06-01 07:37:09] [INFO ] Computed 3 invariants in 1 ms
[2025-06-01 07:37:09] [INFO ] [Real]Absence check using 3 positive place invariants in 1 ms returned sat
[2025-06-01 07:37:09] [INFO ] After 30ms SMT Verify possible using state equation in real domain returned unsat :0 sat :1 real:3
[2025-06-01 07:37:09] [INFO ] State equation strengthened by 2 read => feed constraints.
[2025-06-01 07:37:09] [INFO ] After 6ms SMT Verify possible using 2 Read/Feed constraints in real domain returned unsat :0 sat :0 real:4
[2025-06-01 07:37:09] [INFO ] After 77ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:4
[2025-06-01 07:37:09] [INFO ] [Nat]Absence check using 3 positive place invariants in 1 ms returned sat
[2025-06-01 07:37:09] [INFO ] After 23ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :4
[2025-06-01 07:37:09] [INFO ] After 11ms SMT Verify possible using 2 Read/Feed constraints in natural domain returned unsat :0 sat :4
TRAPS : Iteration 0
[2025-06-01 07:37:09] [INFO ] After 27ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :4
[2025-06-01 07:37:09] [INFO ] After 91ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :4
[2025-06-01 07:37:09] [INFO ] Flatten gal took : 5 ms
[2025-06-01 07:37:09] [INFO ] Flatten gal took : 4 ms
[2025-06-01 07:37:09] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality13011695154233570222.gal : 2 ms
[2025-06-01 07:37:09] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality4744142430012441529.prop : 1 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202405141337/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality13011695154233570222.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality4744142430012441529.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202405141337/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...329
Loading property file /tmp/ReachabilityCardinality4744142430012441529.prop.
SDD proceeding with computation,4 properties remain. new max is 4
SDD size :1 after 5
SDD proceeding with computation,4 properties remain. new max is 8
SDD size :5 after 75
SDD proceeding with computation,4 properties remain. new max is 16
SDD size :75 after 2315
SDD proceeding with computation,4 properties remain. new max is 32
SDD size :2315 after 24875
SDD proceeding with computation,4 properties remain. new max is 64
SDD size :24875 after 218315
SDD proceeding with computation,4 properties remain. new max is 128
SDD size :218315 after 1.78888e+06
SDD proceeding with computation,4 properties remain. new max is 256
SDD size :1.78888e+06 after 1.43105e+07
SDD proceeding with computation,4 properties remain. new max is 512
SDD size :1.43105e+07 after 1.13825e+08
SDD proceeding with computation,4 properties remain. new max is 1024
SDD size :1.13825e+08 after 9.05308e+08
Detected timeout of ITS tools.
[2025-06-01 07:37:24] [INFO ] Flatten gal took : 4 ms
[2025-06-01 07:37:24] [INFO ] Applying decomposition
[2025-06-01 07:37:24] [INFO ] Flatten gal took : 4 ms
Converted graph to binary with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202405141337/bin/convert-linux64' '-i' '/tmp/graph12264687993105100830.txt' '-o' '/tmp/graph12264687993105100830.bin' '-w' '/tmp/graph12264687993105100830.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202405141337/bin/louvain-linux64' '/tmp/graph12264687993105100830.bin' '-l' '-1' '-v' '-w' '/tmp/graph12264687993105100830.weights' '-q' '0' '-e' '0.001'
[2025-06-01 07:37:24] [INFO ] Decomposing Gal with order
[2025-06-01 07:37:24] [INFO ] Rewriting arrays to variables to allow decomposition.
[2025-06-01 07:37:24] [INFO ] Removed a total of 41 redundant transitions.
[2025-06-01 07:37:24] [INFO ] Flatten gal took : 7 ms
[2025-06-01 07:37:24] [INFO ] Fuse similar labels procedure discarded/fused a total of 8 labels/synchronizations in 1 ms.
[2025-06-01 07:37:24] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality10874337947967009163.gal : 2 ms
[2025-06-01 07:37:24] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality6061936241341758185.prop : 0 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202405141337/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality10874337947967009163.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality6061936241341758185.prop' '--nowitness'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202405141337/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...308
Loading property file /tmp/ReachabilityCardinality6061936241341758185.prop.
SDD proceeding with computation,4 properties remain. new max is 4
SDD size :1 after 5
SDD proceeding with computation,4 properties remain. new max is 8
SDD size :5 after 30
SDD proceeding with computation,4 properties remain. new max is 16
SDD size :30 after 165
Detected timeout of ITS tools.
Detected timeout of ITS tools.
Over-approximation ignoring read arcs solved 0 properties in 30345 ms.
Current structural bounds on expressions (After reachability solving 0 queries.) : Max Seen:[753, 2321, 1204, 1877] Max Struct:[+inf, +inf, +inf, +inf]
Starting property specific reduction for FunctionPointer-PT-b004-UpperBounds-01
Current structural bounds on expressions (Initially) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (Adding known information on max bounds.) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (Before main loop) : Max Seen:[0] Max Struct:[+inf]
[2025-06-01 07:37:39] [INFO ] Flow matrix only has 139 transitions (discarded 85 similar events)
// Phase 1: matrix 139 rows 90 cols
[2025-06-01 07:37:39] [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 24 ms. (400 steps per ms)
BEST_FIRST walk for 10001 steps (2 resets) in 15 ms. (625 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[4] Max Struct:[+inf]
[2025-06-01 07:37:39] [INFO ] Flow matrix only has 139 transitions (discarded 85 similar events)
[2025-06-01 07:37:39] [INFO ] Invariant cache hit.
[2025-06-01 07:37:39] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:37:39] [INFO ] [Real]Absence check using state equation in 73 ms returned sat
[2025-06-01 07:37:39] [INFO ] State equation strengthened by 21 read => feed constraints.
[2025-06-01 07:37:39] [INFO ] [Real]Added 21 Read/Feed constraints in 10 ms returned sat
[2025-06-01 07:37:39] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:37:39] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:37:39] [INFO ] [Nat]Absence check using state equation in 71 ms returned sat
[2025-06-01 07:37:39] [INFO ] [Nat]Added 21 Read/Feed constraints in 10 ms returned sat
[2025-06-01 07:37:39] [INFO ] Deduced a trap composed of 25 places in 112 ms of which 3 ms to minimize.
[2025-06-01 07:37:40] [INFO ] Deduced a trap composed of 29 places in 107 ms of which 2 ms to minimize.
[2025-06-01 07:37:40] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 250 ms
[2025-06-01 07:37:40] [INFO ] Computed and/alt/rep : 62/242/57 causal constraints (skipped 80 transitions) in 17 ms.
[2025-06-01 07:37:40] [INFO ] Added : 14 causal constraints over 4 iterations in 108 ms. Result :sat
Minimization took 53 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[4] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[4] Max Struct:[+inf]
Support contains 1 out of 90 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 90/90 places, 224/224 transitions.
Discarding 2 places :
Symmetric choice reduction at 0 with 2 rule applications. Total rules 2 place count 88 transition count 218
Iterating global reduction 0 with 2 rules applied. Total rules applied 4 place count 88 transition count 218
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 5 place count 87 transition count 216
Iterating global reduction 0 with 1 rules applied. Total rules applied 6 place count 87 transition count 216
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 7 place count 86 transition count 214
Iterating global reduction 0 with 1 rules applied. Total rules applied 8 place count 86 transition count 214
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 9 place count 85 transition count 212
Iterating global reduction 0 with 1 rules applied. Total rules applied 10 place count 85 transition count 212
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 11 place count 84 transition count 210
Iterating global reduction 0 with 1 rules applied. Total rules applied 12 place count 84 transition count 210
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 13 place count 83 transition count 208
Iterating global reduction 0 with 1 rules applied. Total rules applied 14 place count 83 transition count 208
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 15 place count 82 transition count 206
Iterating global reduction 0 with 1 rules applied. Total rules applied 16 place count 82 transition count 206
Applied a total of 16 rules in 28 ms. Remains 82 /90 variables (removed 8) and now considering 206/224 (removed 18) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 28 ms. Remains : 82/90 places, 206/224 transitions.
[2025-06-01 07:37:40] [INFO ] Flow matrix only has 126 transitions (discarded 80 similar events)
Found an invariant !
This invariant on transitions {30=1, 63=1, 93=1, 121=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {24=1, 57=1, 87=1, 122=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 36 ms. (steps per millisecond=277 ) properties (out of 1) seen :[2]
Current structural bounds on expressions (after cover walk) : Max Seen:[4] Max Struct:[+inf]
[2025-06-01 07:37:40] [INFO ] Flow matrix only has 126 transitions (discarded 80 similar events)
// Phase 1: matrix 126 rows 82 cols
[2025-06-01 07:37:40] [INFO ] Computed 3 invariants in 2 ms
Current structural bounds on expressions (after invariants) : Max Seen:[4] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 1504 ms. (664 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 630 ms. (1584 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[14] Max Struct:[+inf]
[2025-06-01 07:37:42] [INFO ] Flow matrix only has 126 transitions (discarded 80 similar events)
[2025-06-01 07:37:42] [INFO ] Invariant cache hit.
[2025-06-01 07:37:42] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:37:42] [INFO ] [Real]Absence check using state equation in 45 ms returned sat
[2025-06-01 07:37:42] [INFO ] State equation strengthened by 18 read => feed constraints.
[2025-06-01 07:37:42] [INFO ] [Real]Added 18 Read/Feed constraints in 4 ms returned sat
[2025-06-01 07:37:42] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:37:42] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:37:42] [INFO ] [Nat]Absence check using state equation in 48 ms returned sat
[2025-06-01 07:37:42] [INFO ] [Nat]Added 18 Read/Feed constraints in 5 ms returned sat
[2025-06-01 07:37:42] [INFO ] Deduced a trap composed of 19 places in 63 ms of which 1 ms to minimize.
[2025-06-01 07:37:42] [INFO ] Deduced a trap composed of 18 places in 61 ms of which 3 ms to minimize.
[2025-06-01 07:37:42] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 143 ms
[2025-06-01 07:37:42] [INFO ] Computed and/alt/rep : 59/192/53 causal constraints (skipped 71 transitions) in 12 ms.
[2025-06-01 07:37:42] [INFO ] Added : 13 causal constraints over 4 iterations in 65 ms. Result :sat
Minimization took 31 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 82 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 82/82 places, 206/206 transitions.
Applied a total of 0 rules in 4 ms. Remains 82 /82 variables (removed 0) and now considering 206/206 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 4 ms. Remains : 82/82 places, 206/206 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 82/82 places, 206/206 transitions.
Applied a total of 0 rules in 4 ms. Remains 82 /82 variables (removed 0) and now considering 206/206 (removed 0) transitions.
[2025-06-01 07:37:43] [INFO ] Flow matrix only has 126 transitions (discarded 80 similar events)
[2025-06-01 07:37:43] [INFO ] Invariant cache hit.
[2025-06-01 07:37:43] [INFO ] Implicit Places using invariants in 116 ms returned []
[2025-06-01 07:37:43] [INFO ] Flow matrix only has 126 transitions (discarded 80 similar events)
[2025-06-01 07:37:43] [INFO ] Invariant cache hit.
[2025-06-01 07:37:43] [INFO ] State equation strengthened by 18 read => feed constraints.
[2025-06-01 07:37:43] [INFO ] Implicit Places using invariants and state equation in 231 ms returned []
Implicit Place search using SMT with State Equation took 348 ms to find 0 implicit places.
[2025-06-01 07:37:43] [INFO ] Redundant transitions in 1 ms returned []
Running 204 sub problems to find dead transitions.
[2025-06-01 07:37:43] [INFO ] Flow matrix only has 126 transitions (discarded 80 similar events)
[2025-06-01 07:37:43] [INFO ] Invariant cache hit.
[2025-06-01 07:37:43] [INFO ] State equation strengthened by 18 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/82 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 204 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/82 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 204 unsolved
At refinement iteration 2 (OVERLAPS) 126/208 variables, 82/85 constraints. Problems are: Problem set: 0 solved, 204 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/208 variables, 18/103 constraints. Problems are: Problem set: 0 solved, 204 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/208 variables, 0/103 constraints. Problems are: Problem set: 0 solved, 204 unsolved
At refinement iteration 5 (OVERLAPS) 0/208 variables, 0/103 constraints. Problems are: Problem set: 0 solved, 204 unsolved
No progress, stopping.
After SMT solving in domain Real declared 208/208 variables, and 103 constraints, problems are : Problem set: 0 solved, 204 unsolved in 5007 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 82/82 constraints, ReadFeed: 18/18 constraints, PredecessorRefiner: 204/204 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 204 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/82 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 204 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/82 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 204 unsolved
At refinement iteration 2 (OVERLAPS) 126/208 variables, 82/85 constraints. Problems are: Problem set: 0 solved, 204 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/208 variables, 18/103 constraints. Problems are: Problem set: 0 solved, 204 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/208 variables, 204/307 constraints. Problems are: Problem set: 0 solved, 204 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/208 variables, 0/307 constraints. Problems are: Problem set: 0 solved, 204 unsolved
At refinement iteration 6 (OVERLAPS) 0/208 variables, 0/307 constraints. Problems are: Problem set: 0 solved, 204 unsolved
No progress, stopping.
After SMT solving in domain Int declared 208/208 variables, and 307 constraints, problems are : Problem set: 0 solved, 204 unsolved in 6603 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 82/82 constraints, ReadFeed: 18/18 constraints, PredecessorRefiner: 204/204 constraints, Known Traps: 0/0 constraints]
After SMT, in 11842ms problems are : Problem set: 0 solved, 204 unsolved
Search for dead transitions found 0 dead transitions in 11847ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 12206 ms. Remains : 82/82 places, 206/206 transitions.
[2025-06-01 07:37:55] [INFO ] Flow matrix only has 126 transitions (discarded 80 similar events)
Found an invariant !
This invariant on transitions {30=1, 63=1, 93=1, 121=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {24=1, 57=1, 87=1, 122=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 19 ms. (steps per millisecond=526 ) properties (out of 1) seen :[3]
Current structural bounds on expressions (after cover walk) : Max Seen:[14] Max Struct:[+inf]
[2025-06-01 07:37:55] [INFO ] Flow matrix only has 126 transitions (discarded 80 similar events)
[2025-06-01 07:37:55] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[14] Max Struct:[+inf]
RANDOM walk for 1000001 steps (2 resets) in 1165 ms. (857 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 523 ms. (1908 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[762] Max Struct:[+inf]
[2025-06-01 07:37:57] [INFO ] Flow matrix only has 126 transitions (discarded 80 similar events)
[2025-06-01 07:37:57] [INFO ] Invariant cache hit.
[2025-06-01 07:37:57] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:37:57] [INFO ] [Real]Absence check using state equation in 58 ms returned sat
[2025-06-01 07:37:57] [INFO ] State equation strengthened by 18 read => feed constraints.
[2025-06-01 07:37:57] [INFO ] [Real]Added 18 Read/Feed constraints in 7 ms returned sat
[2025-06-01 07:37:57] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:37:57] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:37:57] [INFO ] [Nat]Absence check using state equation in 59 ms returned sat
[2025-06-01 07:37:57] [INFO ] [Nat]Added 18 Read/Feed constraints in 7 ms returned sat
[2025-06-01 07:37:57] [INFO ] Deduced a trap composed of 19 places in 74 ms of which 2 ms to minimize.
[2025-06-01 07:37:57] [INFO ] Deduced a trap composed of 18 places in 64 ms of which 2 ms to minimize.
[2025-06-01 07:37:57] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 160 ms
[2025-06-01 07:37:57] [INFO ] Computed and/alt/rep : 59/192/53 causal constraints (skipped 71 transitions) in 10 ms.
[2025-06-01 07:37:57] [INFO ] Added : 13 causal constraints over 4 iterations in 61 ms. Result :sat
Minimization took 30 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[762] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[762] Max Struct:[+inf]
Support contains 1 out of 82 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 82/82 places, 206/206 transitions.
Applied a total of 0 rules in 4 ms. Remains 82 /82 variables (removed 0) and now considering 206/206 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 4 ms. Remains : 82/82 places, 206/206 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 82/82 places, 206/206 transitions.
Applied a total of 0 rules in 3 ms. Remains 82 /82 variables (removed 0) and now considering 206/206 (removed 0) transitions.
[2025-06-01 07:37:59] [INFO ] Flow matrix only has 126 transitions (discarded 80 similar events)
[2025-06-01 07:37:59] [INFO ] Invariant cache hit.
[2025-06-01 07:37:59] [INFO ] Implicit Places using invariants in 142 ms returned []
[2025-06-01 07:37:59] [INFO ] Flow matrix only has 126 transitions (discarded 80 similar events)
[2025-06-01 07:37:59] [INFO ] Invariant cache hit.
[2025-06-01 07:37:59] [INFO ] State equation strengthened by 18 read => feed constraints.
[2025-06-01 07:38:00] [INFO ] Implicit Places using invariants and state equation in 498 ms returned []
Implicit Place search using SMT with State Equation took 661 ms to find 0 implicit places.
[2025-06-01 07:38:00] [INFO ] Redundant transitions in 1 ms returned []
Running 204 sub problems to find dead transitions.
[2025-06-01 07:38:00] [INFO ] Flow matrix only has 126 transitions (discarded 80 similar events)
[2025-06-01 07:38:00] [INFO ] Invariant cache hit.
[2025-06-01 07:38:00] [INFO ] State equation strengthened by 18 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/82 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 204 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/82 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 204 unsolved
At refinement iteration 2 (OVERLAPS) 126/208 variables, 82/85 constraints. Problems are: Problem set: 0 solved, 204 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/208 variables, 18/103 constraints. Problems are: Problem set: 0 solved, 204 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/208 variables, 0/103 constraints. Problems are: Problem set: 0 solved, 204 unsolved
At refinement iteration 5 (OVERLAPS) 0/208 variables, 0/103 constraints. Problems are: Problem set: 0 solved, 204 unsolved
No progress, stopping.
After SMT solving in domain Real declared 208/208 variables, and 103 constraints, problems are : Problem set: 0 solved, 204 unsolved in 6397 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 82/82 constraints, ReadFeed: 18/18 constraints, PredecessorRefiner: 204/204 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 204 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/82 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 204 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/82 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 204 unsolved
At refinement iteration 2 (OVERLAPS) 126/208 variables, 82/85 constraints. Problems are: Problem set: 0 solved, 204 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/208 variables, 18/103 constraints. Problems are: Problem set: 0 solved, 204 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/208 variables, 204/307 constraints. Problems are: Problem set: 0 solved, 204 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/208 variables, 0/307 constraints. Problems are: Problem set: 0 solved, 204 unsolved
At refinement iteration 6 (OVERLAPS) 0/208 variables, 0/307 constraints. Problems are: Problem set: 0 solved, 204 unsolved
No progress, stopping.
After SMT solving in domain Int declared 208/208 variables, and 307 constraints, problems are : Problem set: 0 solved, 204 unsolved in 7453 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 82/82 constraints, ReadFeed: 18/18 constraints, PredecessorRefiner: 204/204 constraints, Known Traps: 0/0 constraints]
After SMT, in 14045ms problems are : Problem set: 0 solved, 204 unsolved
Search for dead transitions found 0 dead transitions in 14049ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 14722 ms. Remains : 82/82 places, 206/206 transitions.
[2025-06-01 07:38:14] [INFO ] Flow matrix only has 126 transitions (discarded 80 similar events)
Found an invariant !
This invariant on transitions {30=1, 63=1, 93=1, 121=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {24=1, 57=1, 87=1, 122=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 19 ms. (steps per millisecond=526 ) properties (out of 1) seen :[4]
Current structural bounds on expressions (after cover walk) : Max Seen:[762] Max Struct:[+inf]
[2025-06-01 07:38:14] [INFO ] Flow matrix only has 126 transitions (discarded 80 similar events)
[2025-06-01 07:38:14] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[762] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 1173 ms. (851 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 562 ms. (1776 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[762] Max Struct:[+inf]
[2025-06-01 07:38:15] [INFO ] Flow matrix only has 126 transitions (discarded 80 similar events)
[2025-06-01 07:38:15] [INFO ] Invariant cache hit.
[2025-06-01 07:38:16] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:38:16] [INFO ] [Real]Absence check using state equation in 76 ms returned sat
[2025-06-01 07:38:16] [INFO ] State equation strengthened by 18 read => feed constraints.
[2025-06-01 07:38:16] [INFO ] [Real]Added 18 Read/Feed constraints in 8 ms returned sat
[2025-06-01 07:38:16] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:38:16] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:38:16] [INFO ] [Nat]Absence check using state equation in 66 ms returned sat
[2025-06-01 07:38:16] [INFO ] [Nat]Added 18 Read/Feed constraints in 6 ms returned sat
[2025-06-01 07:38:16] [INFO ] Deduced a trap composed of 19 places in 108 ms of which 2 ms to minimize.
[2025-06-01 07:38:16] [INFO ] Deduced a trap composed of 18 places in 79 ms of which 2 ms to minimize.
[2025-06-01 07:38:16] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 223 ms
[2025-06-01 07:38:16] [INFO ] Computed and/alt/rep : 59/192/53 causal constraints (skipped 71 transitions) in 12 ms.
[2025-06-01 07:38:16] [INFO ] Added : 13 causal constraints over 4 iterations in 81 ms. Result :sat
Minimization took 49 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[762] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[762] Max Struct:[+inf]
Support contains 1 out of 82 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 82/82 places, 206/206 transitions.
Applied a total of 0 rules in 9 ms. Remains 82 /82 variables (removed 0) and now considering 206/206 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 9 ms. Remains : 82/82 places, 206/206 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 82/82 places, 206/206 transitions.
Applied a total of 0 rules in 3 ms. Remains 82 /82 variables (removed 0) and now considering 206/206 (removed 0) transitions.
[2025-06-01 07:38:18] [INFO ] Flow matrix only has 126 transitions (discarded 80 similar events)
[2025-06-01 07:38:18] [INFO ] Invariant cache hit.
[2025-06-01 07:38:18] [INFO ] Implicit Places using invariants in 128 ms returned []
[2025-06-01 07:38:18] [INFO ] Flow matrix only has 126 transitions (discarded 80 similar events)
[2025-06-01 07:38:18] [INFO ] Invariant cache hit.
[2025-06-01 07:38:18] [INFO ] State equation strengthened by 18 read => feed constraints.
[2025-06-01 07:38:18] [INFO ] Implicit Places using invariants and state equation in 174 ms returned []
Implicit Place search using SMT with State Equation took 304 ms to find 0 implicit places.
[2025-06-01 07:38:18] [INFO ] Redundant transitions in 1 ms returned []
Running 204 sub problems to find dead transitions.
[2025-06-01 07:38:18] [INFO ] Flow matrix only has 126 transitions (discarded 80 similar events)
[2025-06-01 07:38:18] [INFO ] Invariant cache hit.
[2025-06-01 07:38:18] [INFO ] State equation strengthened by 18 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/82 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 204 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/82 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 204 unsolved
At refinement iteration 2 (OVERLAPS) 126/208 variables, 82/85 constraints. Problems are: Problem set: 0 solved, 204 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/208 variables, 18/103 constraints. Problems are: Problem set: 0 solved, 204 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/208 variables, 0/103 constraints. Problems are: Problem set: 0 solved, 204 unsolved
At refinement iteration 5 (OVERLAPS) 0/208 variables, 0/103 constraints. Problems are: Problem set: 0 solved, 204 unsolved
No progress, stopping.
After SMT solving in domain Real declared 208/208 variables, and 103 constraints, problems are : Problem set: 0 solved, 204 unsolved in 6360 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 82/82 constraints, ReadFeed: 18/18 constraints, PredecessorRefiner: 204/204 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 204 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/82 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 204 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/82 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 204 unsolved
At refinement iteration 2 (OVERLAPS) 126/208 variables, 82/85 constraints. Problems are: Problem set: 0 solved, 204 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/208 variables, 18/103 constraints. Problems are: Problem set: 0 solved, 204 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/208 variables, 204/307 constraints. Problems are: Problem set: 0 solved, 204 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/208 variables, 0/307 constraints. Problems are: Problem set: 0 solved, 204 unsolved
At refinement iteration 6 (OVERLAPS) 0/208 variables, 0/307 constraints. Problems are: Problem set: 0 solved, 204 unsolved
No progress, stopping.
After SMT solving in domain Int declared 208/208 variables, and 307 constraints, problems are : Problem set: 0 solved, 204 unsolved in 8564 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 82/82 constraints, ReadFeed: 18/18 constraints, PredecessorRefiner: 204/204 constraints, Known Traps: 0/0 constraints]
After SMT, in 15075ms problems are : Problem set: 0 solved, 204 unsolved
Search for dead transitions found 0 dead transitions in 15078ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 15392 ms. Remains : 82/82 places, 206/206 transitions.
[2025-06-01 07:38:33] [INFO ] Flow matrix only has 126 transitions (discarded 80 similar events)
Found an invariant !
This invariant on transitions {30=1, 63=1, 93=1, 121=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {24=1, 57=1, 87=1, 122=1}
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 :[2147483647]
Current structural bounds on expressions (after cover walk) : Max Seen:[+inf] Max Struct:[+inf]
[2025-06-01 07:38:33] [INFO ] Flow matrix only has 126 transitions (discarded 80 similar events)
[2025-06-01 07:38:33] [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 1383 ms. (722 steps per ms)
FORMULA FunctionPointer-PT-b004-UpperBounds-01 +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 )
[2025-06-01 07:38:35] [INFO ] Flatten gal took : 16 ms
[2025-06-01 07:38:35] [INFO ] Flatten gal took : 15 ms
[2025-06-01 07:38:35] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality11059438179995852678.gal : 7 ms
[2025-06-01 07:38:35] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality533372691354166870.prop : 1 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202405141337/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality11059438179995852678.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality533372691354166870.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202405141337/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...328
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:[] Max Struct:[]
Ending property specific reduction for FunctionPointer-PT-b004-UpperBounds-01 in 55990 ms.
Starting property specific reduction for FunctionPointer-PT-b004-UpperBounds-06
Current structural bounds on expressions (Initially) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (Adding known information on max bounds.) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (Before main loop) : Max Seen:[0] Max Struct:[+inf]
[2025-06-01 07:38:35] [INFO ] Flow matrix only has 139 transitions (discarded 85 similar events)
// Phase 1: matrix 139 rows 90 cols
[2025-06-01 07:38:35] [INFO ] Computed 3 invariants in 0 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[+inf]
RANDOM walk for 10000 steps (2 resets) in 16 ms. (588 steps per ms)
BEST_FIRST walk for 10001 steps (2 resets) in 7 ms. (1250 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[8] Max Struct:[+inf]
[2025-06-01 07:38:35] [INFO ] Flow matrix only has 139 transitions (discarded 85 similar events)
[2025-06-01 07:38:35] [INFO ] Invariant cache hit.
[2025-06-01 07:38:35] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:38:35] [INFO ] [Real]Absence check using state equation in 50 ms returned sat
[2025-06-01 07:38:35] [INFO ] State equation strengthened by 21 read => feed constraints.
[2025-06-01 07:38:35] [INFO ] [Real]Added 21 Read/Feed constraints in 6 ms returned sat
[2025-06-01 07:38:35] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:38:35] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:38:35] [INFO ] [Nat]Absence check using state equation in 51 ms returned sat
[2025-06-01 07:38:35] [INFO ] [Nat]Added 21 Read/Feed constraints in 6 ms returned sat
[2025-06-01 07:38:35] [INFO ] Deduced a trap composed of 29 places in 71 ms of which 2 ms to minimize.
[2025-06-01 07:38:35] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 84 ms
[2025-06-01 07:38:35] [INFO ] Computed and/alt/rep : 62/242/57 causal constraints (skipped 80 transitions) in 12 ms.
[2025-06-01 07:38:35] [INFO ] Added : 16 causal constraints over 4 iterations in 73 ms. Result :sat
Minimization took 37 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[8] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[8] Max Struct:[+inf]
Support contains 1 out of 90 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 90/90 places, 224/224 transitions.
Discarding 3 places :
Symmetric choice reduction at 0 with 3 rule applications. Total rules 3 place count 87 transition count 216
Iterating global reduction 0 with 3 rules applied. Total rules applied 6 place count 87 transition count 216
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 7 place count 86 transition count 214
Iterating global reduction 0 with 1 rules applied. Total rules applied 8 place count 86 transition count 214
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 9 place count 85 transition count 210
Iterating global reduction 0 with 1 rules applied. Total rules applied 10 place count 85 transition count 210
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 11 place count 84 transition count 208
Iterating global reduction 0 with 1 rules applied. Total rules applied 12 place count 84 transition count 208
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 13 place count 83 transition count 206
Iterating global reduction 0 with 1 rules applied. Total rules applied 14 place count 83 transition count 206
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 15 place count 82 transition count 204
Iterating global reduction 0 with 1 rules applied. Total rules applied 16 place count 82 transition count 204
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 17 place count 81 transition count 202
Iterating global reduction 0 with 1 rules applied. Total rules applied 18 place count 81 transition count 202
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 19 place count 80 transition count 200
Iterating global reduction 0 with 1 rules applied. Total rules applied 20 place count 80 transition count 200
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 21 place count 79 transition count 198
Iterating global reduction 0 with 1 rules applied. Total rules applied 22 place count 79 transition count 198
Applied a total of 22 rules in 18 ms. Remains 79 /90 variables (removed 11) and now considering 198/224 (removed 26) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 18 ms. Remains : 79/90 places, 198/224 transitions.
[2025-06-01 07:38:35] [INFO ] Flow matrix only has 122 transitions (discarded 76 similar events)
Found an invariant !
This invariant on transitions {31=1, 60=1, 106=1, 121=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {30=1, 59=1, 105=1, 120=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 23 ms. (steps per millisecond=434 ) properties (out of 1) seen :[6]
Current structural bounds on expressions (after cover walk) : Max Seen:[8] Max Struct:[+inf]
[2025-06-01 07:38:35] [INFO ] Flow matrix only has 122 transitions (discarded 76 similar events)
// Phase 1: matrix 122 rows 79 cols
[2025-06-01 07:38:36] [INFO ] Computed 3 invariants in 1 ms
Current structural bounds on expressions (after invariants) : Max Seen:[8] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 1507 ms. (663 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 581 ms. (1718 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[668] Max Struct:[+inf]
[2025-06-01 07:38:38] [INFO ] Flow matrix only has 122 transitions (discarded 76 similar events)
[2025-06-01 07:38:38] [INFO ] Invariant cache hit.
[2025-06-01 07:38:38] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:38:38] [INFO ] [Real]Absence check using state equation in 40 ms returned sat
[2025-06-01 07:38:38] [INFO ] State equation strengthened by 18 read => feed constraints.
[2025-06-01 07:38:38] [INFO ] [Real]Added 18 Read/Feed constraints in 5 ms returned sat
[2025-06-01 07:38:38] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:38:38] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:38:38] [INFO ] [Nat]Absence check using state equation in 54 ms returned sat
[2025-06-01 07:38:38] [INFO ] [Nat]Added 18 Read/Feed constraints in 7 ms returned sat
[2025-06-01 07:38:38] [INFO ] Computed and/alt/rep : 59/192/53 causal constraints (skipped 67 transitions) in 13 ms.
[2025-06-01 07:38:38] [INFO ] Added : 14 causal constraints over 4 iterations in 78 ms. Result :sat
Minimization took 44 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[668] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[668] Max Struct:[+inf]
Support contains 1 out of 79 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 79/79 places, 198/198 transitions.
Applied a total of 0 rules in 6 ms. Remains 79 /79 variables (removed 0) and now considering 198/198 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 6 ms. Remains : 79/79 places, 198/198 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 79/79 places, 198/198 transitions.
Applied a total of 0 rules in 5 ms. Remains 79 /79 variables (removed 0) and now considering 198/198 (removed 0) transitions.
[2025-06-01 07:38:40] [INFO ] Flow matrix only has 122 transitions (discarded 76 similar events)
[2025-06-01 07:38:40] [INFO ] Invariant cache hit.
[2025-06-01 07:38:40] [INFO ] Implicit Places using invariants in 156 ms returned []
[2025-06-01 07:38:40] [INFO ] Flow matrix only has 122 transitions (discarded 76 similar events)
[2025-06-01 07:38:40] [INFO ] Invariant cache hit.
[2025-06-01 07:38:40] [INFO ] State equation strengthened by 18 read => feed constraints.
[2025-06-01 07:38:40] [INFO ] Implicit Places using invariants and state equation in 228 ms returned []
Implicit Place search using SMT with State Equation took 386 ms to find 0 implicit places.
[2025-06-01 07:38:40] [INFO ] Redundant transitions in 1 ms returned []
Running 196 sub problems to find dead transitions.
[2025-06-01 07:38:40] [INFO ] Flow matrix only has 122 transitions (discarded 76 similar events)
[2025-06-01 07:38:40] [INFO ] Invariant cache hit.
[2025-06-01 07:38:40] [INFO ] State equation strengthened by 18 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/79 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 196 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/79 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 196 unsolved
At refinement iteration 2 (OVERLAPS) 122/201 variables, 79/82 constraints. Problems are: Problem set: 0 solved, 196 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/201 variables, 18/100 constraints. Problems are: Problem set: 0 solved, 196 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/201 variables, 0/100 constraints. Problems are: Problem set: 0 solved, 196 unsolved
At refinement iteration 5 (OVERLAPS) 0/201 variables, 0/100 constraints. Problems are: Problem set: 0 solved, 196 unsolved
No progress, stopping.
After SMT solving in domain Real declared 201/201 variables, and 100 constraints, problems are : Problem set: 0 solved, 196 unsolved in 4982 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 79/79 constraints, ReadFeed: 18/18 constraints, PredecessorRefiner: 196/196 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 196 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/79 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 196 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/79 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 196 unsolved
At refinement iteration 2 (OVERLAPS) 122/201 variables, 79/82 constraints. Problems are: Problem set: 0 solved, 196 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/201 variables, 18/100 constraints. Problems are: Problem set: 0 solved, 196 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/201 variables, 196/296 constraints. Problems are: Problem set: 0 solved, 196 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/201 variables, 0/296 constraints. Problems are: Problem set: 0 solved, 196 unsolved
At refinement iteration 6 (OVERLAPS) 0/201 variables, 0/296 constraints. Problems are: Problem set: 0 solved, 196 unsolved
No progress, stopping.
After SMT solving in domain Int declared 201/201 variables, and 296 constraints, problems are : Problem set: 0 solved, 196 unsolved in 6828 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 79/79 constraints, ReadFeed: 18/18 constraints, PredecessorRefiner: 196/196 constraints, Known Traps: 0/0 constraints]
After SMT, in 12008ms problems are : Problem set: 0 solved, 196 unsolved
Search for dead transitions found 0 dead transitions in 12012ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 12409 ms. Remains : 79/79 places, 198/198 transitions.
[2025-06-01 07:38:52] [INFO ] Flow matrix only has 122 transitions (discarded 76 similar events)
Found an invariant !
This invariant on transitions {31=1, 60=1, 106=1, 121=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {30=1, 59=1, 105=1, 120=1}
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 :[2147483647]
Current structural bounds on expressions (after cover walk) : Max Seen:[+inf] Max Struct:[+inf]
[2025-06-01 07:38:52] [INFO ] Flow matrix only has 122 transitions (discarded 76 similar events)
[2025-06-01 07:38:52] [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 1351 ms. (739 steps per ms)
FORMULA FunctionPointer-PT-b004-UpperBounds-06 +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 )
[2025-06-01 07:38:53] [INFO ] Flatten gal took : 14 ms
[2025-06-01 07:38:53] [INFO ] Flatten gal took : 13 ms
[2025-06-01 07:38:53] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality6793214486322368503.gal : 5 ms
[2025-06-01 07:38:53] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality8247618188249982648.prop : 1 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202405141337/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality6793214486322368503.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality8247618188249982648.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_1.0.0.202405141337/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 FunctionPointer-PT-b004-UpperBounds-06 in 18552 ms.
Starting property specific reduction for FunctionPointer-PT-b004-UpperBounds-08
Current structural bounds on expressions (Initially) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (Adding known information on max bounds.) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (Before main loop) : Max Seen:[0] Max Struct:[+inf]
[2025-06-01 07:38:53] [INFO ] Flow matrix only has 139 transitions (discarded 85 similar events)
// Phase 1: matrix 139 rows 90 cols
[2025-06-01 07:38:53] [INFO ] Computed 3 invariants in 1 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[+inf]
RANDOM walk for 10000 steps (2 resets) in 13 ms. (714 steps per ms)
BEST_FIRST walk for 10001 steps (2 resets) in 6 ms. (1428 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[8] Max Struct:[+inf]
[2025-06-01 07:38:54] [INFO ] Flow matrix only has 139 transitions (discarded 85 similar events)
[2025-06-01 07:38:54] [INFO ] Invariant cache hit.
[2025-06-01 07:38:54] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:38:54] [INFO ] [Real]Absence check using state equation in 46 ms returned sat
[2025-06-01 07:38:54] [INFO ] State equation strengthened by 21 read => feed constraints.
[2025-06-01 07:38:54] [INFO ] [Real]Added 21 Read/Feed constraints in 5 ms returned sat
[2025-06-01 07:38:54] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:38:54] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:38:54] [INFO ] [Nat]Absence check using state equation in 63 ms returned sat
[2025-06-01 07:38:54] [INFO ] [Nat]Added 21 Read/Feed constraints in 8 ms returned sat
[2025-06-01 07:38:54] [INFO ] Deduced a trap composed of 25 places in 84 ms of which 6 ms to minimize.
[2025-06-01 07:38:54] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 101 ms
[2025-06-01 07:38:54] [INFO ] Computed and/alt/rep : 62/242/57 causal constraints (skipped 80 transitions) in 14 ms.
[2025-06-01 07:38:54] [INFO ] Added : 21 causal constraints over 5 iterations in 109 ms. Result :sat
Minimization took 53 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[8] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[8] Max Struct:[+inf]
Support contains 1 out of 90 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 90/90 places, 224/224 transitions.
Discarding 2 places :
Symmetric choice reduction at 0 with 2 rule applications. Total rules 2 place count 88 transition count 220
Iterating global reduction 0 with 2 rules applied. Total rules applied 4 place count 88 transition count 220
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 5 place count 87 transition count 218
Iterating global reduction 0 with 1 rules applied. Total rules applied 6 place count 87 transition count 218
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 7 place count 86 transition count 214
Iterating global reduction 0 with 1 rules applied. Total rules applied 8 place count 86 transition count 214
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 9 place count 85 transition count 212
Iterating global reduction 0 with 1 rules applied. Total rules applied 10 place count 85 transition count 212
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 11 place count 84 transition count 210
Iterating global reduction 0 with 1 rules applied. Total rules applied 12 place count 84 transition count 210
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 13 place count 83 transition count 208
Iterating global reduction 0 with 1 rules applied. Total rules applied 14 place count 83 transition count 208
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 15 place count 82 transition count 206
Iterating global reduction 0 with 1 rules applied. Total rules applied 16 place count 82 transition count 206
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 17 place count 81 transition count 204
Iterating global reduction 0 with 1 rules applied. Total rules applied 18 place count 81 transition count 204
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 19 place count 80 transition count 202
Iterating global reduction 0 with 1 rules applied. Total rules applied 20 place count 80 transition count 202
Applied a total of 20 rules in 13 ms. Remains 80 /90 variables (removed 10) and now considering 202/224 (removed 22) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 13 ms. Remains : 80/90 places, 202/224 transitions.
[2025-06-01 07:38:54] [INFO ] Flow matrix only has 124 transitions (discarded 78 similar events)
Found an invariant !
This invariant on transitions {27=1, 58=1, 104=1, 123=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {29=1, 60=1, 90=1, 119=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 18 ms. (steps per millisecond=555 ) properties (out of 1) seen :[0]
Current structural bounds on expressions (after cover walk) : Max Seen:[8] Max Struct:[+inf]
[2025-06-01 07:38:54] [INFO ] Flow matrix only has 124 transitions (discarded 78 similar events)
// Phase 1: matrix 124 rows 80 cols
[2025-06-01 07:38:54] [INFO ] Computed 3 invariants in 1 ms
Current structural bounds on expressions (after invariants) : Max Seen:[8] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 1103 ms. (905 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 520 ms. (1919 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[654] Max Struct:[+inf]
[2025-06-01 07:38:56] [INFO ] Flow matrix only has 124 transitions (discarded 78 similar events)
[2025-06-01 07:38:56] [INFO ] Invariant cache hit.
[2025-06-01 07:38:56] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:38:56] [INFO ] [Real]Absence check using state equation in 60 ms returned sat
[2025-06-01 07:38:56] [INFO ] State equation strengthened by 18 read => feed constraints.
[2025-06-01 07:38:56] [INFO ] [Real]Added 18 Read/Feed constraints in 6 ms returned sat
[2025-06-01 07:38:56] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:38:56] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:38:56] [INFO ] [Nat]Absence check using state equation in 42 ms returned sat
[2025-06-01 07:38:56] [INFO ] [Nat]Added 18 Read/Feed constraints in 18 ms returned sat
[2025-06-01 07:38:56] [INFO ] Computed and/alt/rep : 59/192/53 causal constraints (skipped 69 transitions) in 11 ms.
[2025-06-01 07:38:56] [INFO ] Added : 9 causal constraints over 3 iterations in 52 ms. Result :sat
Minimization took 28 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[654] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[654] Max Struct:[+inf]
Support contains 1 out of 80 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 80/80 places, 202/202 transitions.
Applied a total of 0 rules in 3 ms. Remains 80 /80 variables (removed 0) and now considering 202/202 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 4 ms. Remains : 80/80 places, 202/202 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 80/80 places, 202/202 transitions.
Applied a total of 0 rules in 3 ms. Remains 80 /80 variables (removed 0) and now considering 202/202 (removed 0) transitions.
[2025-06-01 07:38:58] [INFO ] Flow matrix only has 124 transitions (discarded 78 similar events)
[2025-06-01 07:38:58] [INFO ] Invariant cache hit.
[2025-06-01 07:38:58] [INFO ] Implicit Places using invariants in 119 ms returned []
[2025-06-01 07:38:58] [INFO ] Flow matrix only has 124 transitions (discarded 78 similar events)
[2025-06-01 07:38:58] [INFO ] Invariant cache hit.
[2025-06-01 07:38:58] [INFO ] State equation strengthened by 18 read => feed constraints.
[2025-06-01 07:38:58] [INFO ] Implicit Places using invariants and state equation in 187 ms returned []
Implicit Place search using SMT with State Equation took 319 ms to find 0 implicit places.
[2025-06-01 07:38:58] [INFO ] Redundant transitions in 1 ms returned []
Running 200 sub problems to find dead transitions.
[2025-06-01 07:38:58] [INFO ] Flow matrix only has 124 transitions (discarded 78 similar events)
[2025-06-01 07:38:58] [INFO ] Invariant cache hit.
[2025-06-01 07:38:58] [INFO ] State equation strengthened by 18 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/80 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 200 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/80 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 200 unsolved
At refinement iteration 2 (OVERLAPS) 124/204 variables, 80/83 constraints. Problems are: Problem set: 0 solved, 200 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/204 variables, 18/101 constraints. Problems are: Problem set: 0 solved, 200 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/204 variables, 0/101 constraints. Problems are: Problem set: 0 solved, 200 unsolved
At refinement iteration 5 (OVERLAPS) 0/204 variables, 0/101 constraints. Problems are: Problem set: 0 solved, 200 unsolved
No progress, stopping.
After SMT solving in domain Real declared 204/204 variables, and 101 constraints, problems are : Problem set: 0 solved, 200 unsolved in 3860 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 80/80 constraints, ReadFeed: 18/18 constraints, PredecessorRefiner: 200/200 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 200 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/80 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 200 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/80 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 200 unsolved
At refinement iteration 2 (OVERLAPS) 124/204 variables, 80/83 constraints. Problems are: Problem set: 0 solved, 200 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/204 variables, 18/101 constraints. Problems are: Problem set: 0 solved, 200 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/204 variables, 200/301 constraints. Problems are: Problem set: 0 solved, 200 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/204 variables, 0/301 constraints. Problems are: Problem set: 0 solved, 200 unsolved
At refinement iteration 6 (OVERLAPS) 0/204 variables, 0/301 constraints. Problems are: Problem set: 0 solved, 200 unsolved
No progress, stopping.
After SMT solving in domain Int declared 204/204 variables, and 301 constraints, problems are : Problem set: 0 solved, 200 unsolved in 6102 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 80/80 constraints, ReadFeed: 18/18 constraints, PredecessorRefiner: 200/200 constraints, Known Traps: 0/0 constraints]
After SMT, in 10113ms problems are : Problem set: 0 solved, 200 unsolved
Search for dead transitions found 0 dead transitions in 10115ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 10443 ms. Remains : 80/80 places, 202/202 transitions.
[2025-06-01 07:39:08] [INFO ] Flow matrix only has 124 transitions (discarded 78 similar events)
Found an invariant !
This invariant on transitions {27=1, 58=1, 104=1, 123=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {29=1, 60=1, 90=1, 119=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 19 ms. (steps per millisecond=526 ) properties (out of 1) seen :[2]
Current structural bounds on expressions (after cover walk) : Max Seen:[654] Max Struct:[+inf]
[2025-06-01 07:39:08] [INFO ] Flow matrix only has 124 transitions (discarded 78 similar events)
[2025-06-01 07:39:08] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[654] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 1161 ms. (860 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 515 ms. (1937 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[654] Max Struct:[+inf]
[2025-06-01 07:39:10] [INFO ] Flow matrix only has 124 transitions (discarded 78 similar events)
[2025-06-01 07:39:10] [INFO ] Invariant cache hit.
[2025-06-01 07:39:10] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:39:10] [INFO ] [Real]Absence check using state equation in 56 ms returned sat
[2025-06-01 07:39:10] [INFO ] State equation strengthened by 18 read => feed constraints.
[2025-06-01 07:39:10] [INFO ] [Real]Added 18 Read/Feed constraints in 7 ms returned sat
[2025-06-01 07:39:10] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:39:10] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:39:10] [INFO ] [Nat]Absence check using state equation in 54 ms returned sat
[2025-06-01 07:39:10] [INFO ] [Nat]Added 18 Read/Feed constraints in 6 ms returned sat
[2025-06-01 07:39:10] [INFO ] Computed and/alt/rep : 59/192/53 causal constraints (skipped 69 transitions) in 12 ms.
[2025-06-01 07:39:10] [INFO ] Added : 9 causal constraints over 3 iterations in 69 ms. Result :sat
Minimization took 46 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[654] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[654] Max Struct:[+inf]
Support contains 1 out of 80 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 80/80 places, 202/202 transitions.
Applied a total of 0 rules in 4 ms. Remains 80 /80 variables (removed 0) and now considering 202/202 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 4 ms. Remains : 80/80 places, 202/202 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 80/80 places, 202/202 transitions.
Applied a total of 0 rules in 2 ms. Remains 80 /80 variables (removed 0) and now considering 202/202 (removed 0) transitions.
[2025-06-01 07:39:12] [INFO ] Flow matrix only has 124 transitions (discarded 78 similar events)
[2025-06-01 07:39:12] [INFO ] Invariant cache hit.
[2025-06-01 07:39:12] [INFO ] Implicit Places using invariants in 127 ms returned []
[2025-06-01 07:39:12] [INFO ] Flow matrix only has 124 transitions (discarded 78 similar events)
[2025-06-01 07:39:12] [INFO ] Invariant cache hit.
[2025-06-01 07:39:12] [INFO ] State equation strengthened by 18 read => feed constraints.
[2025-06-01 07:39:12] [INFO ] Implicit Places using invariants and state equation in 221 ms returned []
Implicit Place search using SMT with State Equation took 350 ms to find 0 implicit places.
[2025-06-01 07:39:12] [INFO ] Redundant transitions in 1 ms returned []
Running 200 sub problems to find dead transitions.
[2025-06-01 07:39:12] [INFO ] Flow matrix only has 124 transitions (discarded 78 similar events)
[2025-06-01 07:39:12] [INFO ] Invariant cache hit.
[2025-06-01 07:39:12] [INFO ] State equation strengthened by 18 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/80 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 200 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/80 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 200 unsolved
At refinement iteration 2 (OVERLAPS) 124/204 variables, 80/83 constraints. Problems are: Problem set: 0 solved, 200 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/204 variables, 18/101 constraints. Problems are: Problem set: 0 solved, 200 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/204 variables, 0/101 constraints. Problems are: Problem set: 0 solved, 200 unsolved
At refinement iteration 5 (OVERLAPS) 0/204 variables, 0/101 constraints. Problems are: Problem set: 0 solved, 200 unsolved
No progress, stopping.
After SMT solving in domain Real declared 204/204 variables, and 101 constraints, problems are : Problem set: 0 solved, 200 unsolved in 4268 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 80/80 constraints, ReadFeed: 18/18 constraints, PredecessorRefiner: 200/200 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 200 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/80 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 200 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/80 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 200 unsolved
At refinement iteration 2 (OVERLAPS) 124/204 variables, 80/83 constraints. Problems are: Problem set: 0 solved, 200 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/204 variables, 18/101 constraints. Problems are: Problem set: 0 solved, 200 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/204 variables, 200/301 constraints. Problems are: Problem set: 0 solved, 200 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/204 variables, 0/301 constraints. Problems are: Problem set: 0 solved, 200 unsolved
At refinement iteration 6 (OVERLAPS) 0/204 variables, 0/301 constraints. Problems are: Problem set: 0 solved, 200 unsolved
No progress, stopping.
After SMT solving in domain Int declared 204/204 variables, and 301 constraints, problems are : Problem set: 0 solved, 200 unsolved in 7970 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 80/80 constraints, ReadFeed: 18/18 constraints, PredecessorRefiner: 200/200 constraints, Known Traps: 0/0 constraints]
After SMT, in 12450ms problems are : Problem set: 0 solved, 200 unsolved
Search for dead transitions found 0 dead transitions in 12454ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 12812 ms. Remains : 80/80 places, 202/202 transitions.
[2025-06-01 07:39:25] [INFO ] Flow matrix only has 124 transitions (discarded 78 similar events)
Found an invariant !
This invariant on transitions {27=1, 58=1, 104=1, 123=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {29=1, 60=1, 90=1, 119=1}
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 :[4]
Current structural bounds on expressions (after cover walk) : Max Seen:[654] Max Struct:[+inf]
[2025-06-01 07:39:25] [INFO ] Flatten gal took : 13 ms
RANDOM walk for 40004 steps (8 resets) in 78 ms. (506 steps per ms) remains 1/1 properties
[2025-06-01 07:39:25] [INFO ] Flatten gal took : 22 ms
[2025-06-01 07:39:25] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality9888262255653629737.gal : 6 ms
[2025-06-01 07:39:25] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality15775493589967248792.prop : 2 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202405141337/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality9888262255653629737.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality15775493589967248792.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202405141337/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...329
BEST_FIRST walk for 40003 steps (8 resets) in 48 ms. (816 steps per ms) remains 1/1 properties
Loading property file /tmp/ReachabilityCardinality15775493589967248792.prop.
SDD proceeding with computation,1 properties remain. new max is 4
SDD size :1 after 31
SDD proceeding with computation,1 properties remain. new max is 8
SDD size :31 after 915
SDD proceeding with computation,1 properties remain. new max is 16
SDD size :915 after 36013
SDD proceeding with computation,1 properties remain. new max is 32
SDD size :36013 after 93721
SDD proceeding with computation,1 properties remain. new max is 64
SDD size :93721 after 853885
SDD proceeding with computation,1 properties remain. new max is 128
SDD size :853885 after 6.12116e+06
SDD proceeding with computation,1 properties remain. new max is 256
SDD size :6.12116e+06 after 1.65747e+07
SDD proceeding with computation,1 properties remain. new max is 512
SDD size :1.65747e+07 after 3.74007e+07
Interrupted probabilistic random walk after 1555494 steps, run timeout after 3001 ms. (steps per millisecond=518 ) properties seen :0 out of 1
Probabilistic random walk after 1555494 steps, saw 983483 distinct states, run finished after 3001 ms. (steps per millisecond=518 ) properties seen :0
[2025-06-01 07:39:28] [INFO ] Flow matrix only has 124 transitions (discarded 78 similar events)
[2025-06-01 07:39:28] [INFO ] Invariant cache hit.
[2025-06-01 07:39:28] [INFO ] State equation strengthened by 18 read => feed constraints.
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) 3/4 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/4 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 9/13 variables, 3/4 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/13 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 73/86 variables, 8/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/86 variables, 1/13 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/86 variables, 0/13 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 7/93 variables, 2/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/93 variables, 3/18 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/93 variables, 0/18 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 96/189 variables, 55/73 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/189 variables, 17/90 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/189 variables, 0/90 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 6/195 variables, 1/91 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/195 variables, 0/91 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 9/204 variables, 10/101 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/204 variables, 0/101 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 0/204 variables, 0/101 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 204/204 variables, and 101 constraints, problems are : Problem set: 0 solved, 1 unsolved in 142 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 80/80 constraints, ReadFeed: 18/18 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
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) 3/4 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/4 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 9/13 variables, 3/4 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/13 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 73/86 variables, 8/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/86 variables, 1/13 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/86 variables, 1/14 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/86 variables, 0/14 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 7/93 variables, 2/16 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/93 variables, 3/19 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/93 variables, 0/19 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 96/189 variables, 55/74 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/189 variables, 17/91 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/189 variables, 0/91 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 6/195 variables, 1/92 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/195 variables, 0/92 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 9/204 variables, 10/102 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/204 variables, 0/102 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 0/204 variables, 0/102 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 204/204 variables, and 102 constraints, problems are : Problem set: 0 solved, 1 unsolved in 125 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 80/80 constraints, ReadFeed: 18/18 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
After SMT, in 272ms problems are : Problem set: 0 solved, 1 unsolved
SDD proceeding with computation,1 properties remain. new max is 1024
SDD size :3.74007e+07 after 7.89716e+07
Parikh walk visited 0 properties in 1213 ms.
Support contains 1 out of 80 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 80/80 places, 202/202 transitions.
Applied a total of 0 rules in 3 ms. Remains 80 /80 variables (removed 0) and now considering 202/202 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 3 ms. Remains : 80/80 places, 202/202 transitions.
RANDOM walk for 40003 steps (8 resets) in 86 ms. (459 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (8 resets) in 32 ms. (1212 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1651208 steps, run timeout after 3001 ms. (steps per millisecond=550 ) properties seen :0 out of 1
Probabilistic random walk after 1651208 steps, saw 1034773 distinct states, run finished after 3001 ms. (steps per millisecond=550 ) properties seen :0
[2025-06-01 07:39:32] [INFO ] Flow matrix only has 124 transitions (discarded 78 similar events)
[2025-06-01 07:39:32] [INFO ] Invariant cache hit.
[2025-06-01 07:39:32] [INFO ] State equation strengthened by 18 read => feed constraints.
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) 3/4 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/4 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 9/13 variables, 3/4 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/13 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 73/86 variables, 8/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/86 variables, 1/13 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/86 variables, 0/13 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 7/93 variables, 2/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/93 variables, 3/18 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/93 variables, 0/18 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 96/189 variables, 55/73 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/189 variables, 17/90 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/189 variables, 0/90 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 6/195 variables, 1/91 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/195 variables, 0/91 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 9/204 variables, 10/101 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/204 variables, 0/101 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 0/204 variables, 0/101 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 204/204 variables, and 101 constraints, problems are : Problem set: 0 solved, 1 unsolved in 124 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 80/80 constraints, ReadFeed: 18/18 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
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) 3/4 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/4 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 9/13 variables, 3/4 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/13 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 73/86 variables, 8/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/86 variables, 1/13 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/86 variables, 1/14 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/86 variables, 0/14 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 7/93 variables, 2/16 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/93 variables, 3/19 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/93 variables, 0/19 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 96/189 variables, 55/74 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/189 variables, 17/91 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/189 variables, 0/91 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 6/195 variables, 1/92 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/195 variables, 0/92 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 9/204 variables, 10/102 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/204 variables, 0/102 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 0/204 variables, 0/102 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 204/204 variables, and 102 constraints, problems are : Problem set: 0 solved, 1 unsolved in 133 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 80/80 constraints, ReadFeed: 18/18 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
After SMT, in 263ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 1462 ms.
Support contains 1 out of 80 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 80/80 places, 202/202 transitions.
Applied a total of 0 rules in 3 ms. Remains 80 /80 variables (removed 0) and now considering 202/202 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 3 ms. Remains : 80/80 places, 202/202 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 80/80 places, 202/202 transitions.
Applied a total of 0 rules in 9 ms. Remains 80 /80 variables (removed 0) and now considering 202/202 (removed 0) transitions.
[2025-06-01 07:39:34] [INFO ] Flow matrix only has 124 transitions (discarded 78 similar events)
[2025-06-01 07:39:34] [INFO ] Invariant cache hit.
[2025-06-01 07:39:34] [INFO ] Implicit Places using invariants in 119 ms returned []
[2025-06-01 07:39:34] [INFO ] Flow matrix only has 124 transitions (discarded 78 similar events)
[2025-06-01 07:39:34] [INFO ] Invariant cache hit.
[2025-06-01 07:39:34] [INFO ] State equation strengthened by 18 read => feed constraints.
[2025-06-01 07:39:34] [INFO ] Implicit Places using invariants and state equation in 177 ms returned []
Implicit Place search using SMT with State Equation took 298 ms to find 0 implicit places.
[2025-06-01 07:39:34] [INFO ] Redundant transitions in 0 ms returned []
Running 200 sub problems to find dead transitions.
[2025-06-01 07:39:34] [INFO ] Flow matrix only has 124 transitions (discarded 78 similar events)
[2025-06-01 07:39:34] [INFO ] Invariant cache hit.
[2025-06-01 07:39:34] [INFO ] State equation strengthened by 18 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/80 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 200 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/80 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 200 unsolved
At refinement iteration 2 (OVERLAPS) 124/204 variables, 80/83 constraints. Problems are: Problem set: 0 solved, 200 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/204 variables, 18/101 constraints. Problems are: Problem set: 0 solved, 200 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/204 variables, 0/101 constraints. Problems are: Problem set: 0 solved, 200 unsolved
At refinement iteration 5 (OVERLAPS) 0/204 variables, 0/101 constraints. Problems are: Problem set: 0 solved, 200 unsolved
No progress, stopping.
After SMT solving in domain Real declared 204/204 variables, and 101 constraints, problems are : Problem set: 0 solved, 200 unsolved in 5401 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 80/80 constraints, ReadFeed: 18/18 constraints, PredecessorRefiner: 200/200 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 200 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/80 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 200 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/80 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 200 unsolved
SDD proceeding with computation,1 properties remain. new max is 2048
SDD size :7.89716e+07 after 1.62032e+08
At refinement iteration 2 (OVERLAPS) 124/204 variables, 80/83 constraints. Problems are: Problem set: 0 solved, 200 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/204 variables, 18/101 constraints. Problems are: Problem set: 0 solved, 200 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/204 variables, 200/301 constraints. Problems are: Problem set: 0 solved, 200 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/204 variables, 0/301 constraints. Problems are: Problem set: 0 solved, 200 unsolved
At refinement iteration 6 (OVERLAPS) 0/204 variables, 0/301 constraints. Problems are: Problem set: 0 solved, 200 unsolved
No progress, stopping.
After SMT solving in domain Int declared 204/204 variables, and 301 constraints, problems are : Problem set: 0 solved, 200 unsolved in 7819 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 80/80 constraints, ReadFeed: 18/18 constraints, PredecessorRefiner: 200/200 constraints, Known Traps: 0/0 constraints]
After SMT, in 13357ms problems are : Problem set: 0 solved, 200 unsolved
Search for dead transitions found 0 dead transitions in 13359ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 13686 ms. Remains : 80/80 places, 202/202 transitions.
Attempting over-approximation, by ignoring read arcs.
Ensure Unique test removed 78 transitions
Reduce isomorphic transitions removed 78 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 6 transitions
Trivial Post-agglo rules discarded 6 transitions
Performed 6 trivial Post agglomeration. Transition count delta: 6
Iterating post reduction 0 with 84 rules applied. Total rules applied 84 place count 80 transition count 118
Reduce places removed 6 places and 0 transitions.
Iterating post reduction 1 with 6 rules applied. Total rules applied 90 place count 74 transition count 118
Performed 16 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 16 Pre rules applied. Total rules applied 90 place count 74 transition count 102
Deduced a syphon composed of 16 places in 0 ms
Reduce places removed 16 places and 0 transitions.
Iterating global reduction 2 with 32 rules applied. Total rules applied 122 place count 58 transition count 102
Performed 15 Post agglomeration using F-continuation condition.Transition count delta: 15
Deduced a syphon composed of 15 places in 0 ms
Reduce places removed 15 places and 0 transitions.
Iterating global reduction 2 with 30 rules applied. Total rules applied 152 place count 43 transition count 87
Discarding 7 places :
Symmetric choice reduction at 2 with 7 rule applications. Total rules 159 place count 36 transition count 73
Iterating global reduction 2 with 7 rules applied. Total rules applied 166 place count 36 transition count 73
Discarding 7 places :
Symmetric choice reduction at 2 with 7 rule applications. Total rules 173 place count 29 transition count 59
Iterating global reduction 2 with 7 rules applied. Total rules applied 180 place count 29 transition count 59
Discarding 7 places :
Symmetric choice reduction at 2 with 7 rule applications. Total rules 187 place count 22 transition count 45
Iterating global reduction 2 with 7 rules applied. Total rules applied 194 place count 22 transition count 45
Ensure Unique test removed 7 transitions
Reduce isomorphic transitions removed 7 transitions.
Iterating post reduction 2 with 7 rules applied. Total rules applied 201 place count 22 transition count 38
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 1 Pre rules applied. Total rules applied 201 place count 22 transition count 37
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 3 with 2 rules applied. Total rules applied 203 place count 21 transition count 37
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 0
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 3 with 2 rules applied. Total rules applied 205 place count 20 transition count 37
Applied a total of 205 rules in 17 ms. Remains 20 /80 variables (removed 60) and now considering 37/202 (removed 165) transitions.
Running SMT prover for 1 properties.
// Phase 1: matrix 37 rows 20 cols
[2025-06-01 07:39:48] [INFO ] Computed 3 invariants in 0 ms
[2025-06-01 07:39:48] [INFO ] [Real]Absence check using 3 positive place invariants in 1 ms returned sat
[2025-06-01 07:39:48] [INFO ] After 15ms SMT Verify possible using state equation in real domain returned unsat :0 sat :1
[2025-06-01 07:39:48] [INFO ] State equation strengthened by 2 read => feed constraints.
[2025-06-01 07:39:48] [INFO ] After 4ms SMT Verify possible using 2 Read/Feed constraints in real domain returned unsat :0 sat :0 real:1
[2025-06-01 07:39:48] [INFO ] After 43ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
[2025-06-01 07:39:48] [INFO ] [Nat]Absence check using 3 positive place invariants in 1 ms returned sat
[2025-06-01 07:39:48] [INFO ] After 18ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
[2025-06-01 07:39:48] [INFO ] After 3ms SMT Verify possible using 2 Read/Feed constraints in natural domain returned unsat :0 sat :1
TRAPS : Iteration 0
[2025-06-01 07:39:48] [INFO ] After 7ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
[2025-06-01 07:39:48] [INFO ] After 61ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
[2025-06-01 07:39:48] [INFO ] Flatten gal took : 3 ms
[2025-06-01 07:39:48] [INFO ] Flatten gal took : 2 ms
[2025-06-01 07:39:48] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality12116038290052579486.gal : 1 ms
[2025-06-01 07:39:48] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality3521307899130817014.prop : 0 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202405141337/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality12116038290052579486.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality3521307899130817014.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202405141337/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...329
Loading property file /tmp/ReachabilityCardinality3521307899130817014.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 60
SDD proceeding with computation,1 properties remain. new max is 16
SDD size :60 after 900
SDD proceeding with computation,1 properties remain. new max is 32
SDD size :900 after 4560
SDD proceeding with computation,1 properties remain. new max is 64
SDD size :4560 after 19900
SDD proceeding with computation,1 properties remain. new max is 128
SDD size :19900 after 81980
SDD proceeding with computation,1 properties remain. new max is 256
SDD size :81980 after 330300
SDD proceeding with computation,1 properties remain. new max is 512
SDD size :330300 after 1.32104e+06
SDD proceeding with computation,1 properties remain. new max is 1024
SDD size :1.32104e+06 after 5.2737e+06
SDD proceeding with computation,1 properties remain. new max is 2048
SDD size :5.2737e+06 after 2.10536e+07
Detected timeout of ITS tools.
[2025-06-01 07:40:03] [INFO ] Flatten gal took : 4 ms
[2025-06-01 07:40:03] [INFO ] Applying decomposition
[2025-06-01 07:40:03] [INFO ] Flatten gal took : 4 ms
Converted graph to binary with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202405141337/bin/convert-linux64' '-i' '/tmp/graph4127062080359947198.txt' '-o' '/tmp/graph4127062080359947198.bin' '-w' '/tmp/graph4127062080359947198.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202405141337/bin/louvain-linux64' '/tmp/graph4127062080359947198.bin' '-l' '-1' '-v' '-w' '/tmp/graph4127062080359947198.weights' '-q' '0' '-e' '0.001'
[2025-06-01 07:40:03] [INFO ] Decomposing Gal with order
[2025-06-01 07:40:03] [INFO ] Rewriting arrays to variables to allow decomposition.
[2025-06-01 07:40:03] [INFO ] Removed a total of 29 redundant transitions.
[2025-06-01 07:40:03] [INFO ] Flatten gal took : 7 ms
[2025-06-01 07:40:03] [INFO ] Fuse similar labels procedure discarded/fused a total of 4 labels/synchronizations in 0 ms.
[2025-06-01 07:40:03] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality1018571491023140760.gal : 1 ms
[2025-06-01 07:40:03] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality7113411699227654820.prop : 1 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202405141337/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality1018571491023140760.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality7113411699227654820.prop' '--nowitness'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202405141337/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...307
Loading property file /tmp/ReachabilityCardinality7113411699227654820.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 30
Detected timeout of ITS tools.
[2025-06-01 07:40:15] [INFO ] Flatten gal took : 17 ms
[2025-06-01 07:40:15] [INFO ] Applying decomposition
[2025-06-01 07:40:15] [INFO ] Flatten gal took : 10 ms
Converted graph to binary with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202405141337/bin/convert-linux64' '-i' '/tmp/graph16802665980516546791.txt' '-o' '/tmp/graph16802665980516546791.bin' '-w' '/tmp/graph16802665980516546791.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202405141337/bin/louvain-linux64' '/tmp/graph16802665980516546791.bin' '-l' '-1' '-v' '-w' '/tmp/graph16802665980516546791.weights' '-q' '0' '-e' '0.001'
[2025-06-01 07:40:15] [INFO ] Decomposing Gal with order
[2025-06-01 07:40:15] [INFO ] Rewriting arrays to variables to allow decomposition.
[2025-06-01 07:40:15] [INFO ] Removed a total of 344 redundant transitions.
[2025-06-01 07:40:15] [INFO ] Flatten gal took : 23 ms
[2025-06-01 07:40:15] [INFO ] Fuse similar labels procedure discarded/fused a total of 98 labels/synchronizations in 10 ms.
[2025-06-01 07:40:15] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality1171556055323891342.gal : 3 ms
[2025-06-01 07:40:15] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality1523071827288737653.prop : 0 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202405141337/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality1171556055323891342.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality1523071827288737653.prop' '--nowitness'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202405141337/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...307
Loading property file /tmp/ReachabilityCardinality1523071827288737653.prop.
Detected timeout of ITS tools.
Over-approximation ignoring read arcs solved 0 properties in 30243 ms.
ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
Current structural bounds on expressions (After reachability solving 0 queries.) : Max Seen:[654] Max Struct:[+inf]
Ending property specific reduction for FunctionPointer-PT-b004-UpperBounds-08 in 84608 ms.
Starting property specific reduction for FunctionPointer-PT-b004-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]
[2025-06-01 07:40:18] [INFO ] Flow matrix only has 139 transitions (discarded 85 similar events)
// Phase 1: matrix 139 rows 90 cols
[2025-06-01 07:40:18] [INFO ] Computed 3 invariants in 1 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[+inf]
RANDOM walk for 10003 steps (2 resets) in 13 ms. (714 steps per ms)
BEST_FIRST walk for 10001 steps (2 resets) in 6 ms. (1428 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[7] Max Struct:[+inf]
[2025-06-01 07:40:18] [INFO ] Flow matrix only has 139 transitions (discarded 85 similar events)
[2025-06-01 07:40:18] [INFO ] Invariant cache hit.
[2025-06-01 07:40:18] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:40:18] [INFO ] [Real]Absence check using state equation in 61 ms returned sat
[2025-06-01 07:40:18] [INFO ] State equation strengthened by 21 read => feed constraints.
[2025-06-01 07:40:18] [INFO ] [Real]Added 21 Read/Feed constraints in 6 ms returned sat
[2025-06-01 07:40:18] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:40:18] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:40:18] [INFO ] [Nat]Absence check using state equation in 59 ms returned sat
[2025-06-01 07:40:18] [INFO ] [Nat]Added 21 Read/Feed constraints in 6 ms returned sat
[2025-06-01 07:40:18] [INFO ] Deduced a trap composed of 25 places in 87 ms of which 3 ms to minimize.
[2025-06-01 07:40:19] [INFO ] Deduced a trap composed of 24 places in 99 ms of which 2 ms to minimize.
[2025-06-01 07:40:19] [INFO ] Deduced a trap composed of 21 places in 99 ms of which 2 ms to minimize.
[2025-06-01 07:40:19] [INFO ] Trap strengthening (SAT) tested/added 4/3 trap constraints in 314 ms
[2025-06-01 07:40:19] [INFO ] Computed and/alt/rep : 62/242/57 causal constraints (skipped 80 transitions) in 14 ms.
[2025-06-01 07:40:19] [INFO ] Added : 22 causal constraints over 6 iterations in 113 ms. Result :sat
Minimization took 34 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[7] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[7] Max Struct:[+inf]
Support contains 1 out of 90 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 90/90 places, 224/224 transitions.
Discarding 2 places :
Symmetric choice reduction at 0 with 2 rule applications. Total rules 2 place count 88 transition count 218
Iterating global reduction 0 with 2 rules applied. Total rules applied 4 place count 88 transition count 218
Discarding 2 places :
Symmetric choice reduction at 0 with 2 rule applications. Total rules 6 place count 86 transition count 214
Iterating global reduction 0 with 2 rules applied. Total rules applied 8 place count 86 transition count 214
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 9 place count 85 transition count 212
Iterating global reduction 0 with 1 rules applied. Total rules applied 10 place count 85 transition count 212
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 11 place count 84 transition count 210
Iterating global reduction 0 with 1 rules applied. Total rules applied 12 place count 84 transition count 210
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 13 place count 83 transition count 208
Iterating global reduction 0 with 1 rules applied. Total rules applied 14 place count 83 transition count 208
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 15 place count 82 transition count 206
Iterating global reduction 0 with 1 rules applied. Total rules applied 16 place count 82 transition count 206
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 17 place count 81 transition count 204
Iterating global reduction 0 with 1 rules applied. Total rules applied 18 place count 81 transition count 204
Applied a total of 18 rules in 18 ms. Remains 81 /90 variables (removed 9) and now considering 204/224 (removed 20) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 18 ms. Remains : 81/90 places, 204/224 transitions.
[2025-06-01 07:40:19] [INFO ] Flow matrix only has 125 transitions (discarded 79 similar events)
Found an invariant !
This invariant on transitions {31=1, 63=1, 109=1, 123=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {31=1, 63=1, 109=1, 123=1}
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 1) seen :[4]
Current structural bounds on expressions (after cover walk) : Max Seen:[7] Max Struct:[+inf]
[2025-06-01 07:40:19] [INFO ] Flow matrix only has 125 transitions (discarded 79 similar events)
// Phase 1: matrix 125 rows 81 cols
[2025-06-01 07:40:19] [INFO ] Computed 3 invariants in 1 ms
Current structural bounds on expressions (after invariants) : Max Seen:[7] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 1362 ms. (733 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 654 ms. (1526 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[628] Max Struct:[+inf]
[2025-06-01 07:40:21] [INFO ] Flow matrix only has 125 transitions (discarded 79 similar events)
[2025-06-01 07:40:21] [INFO ] Invariant cache hit.
[2025-06-01 07:40:21] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:40:21] [INFO ] [Real]Absence check using state equation in 66 ms returned sat
[2025-06-01 07:40:21] [INFO ] State equation strengthened by 18 read => feed constraints.
[2025-06-01 07:40:21] [INFO ] [Real]Added 18 Read/Feed constraints in 8 ms returned sat
[2025-06-01 07:40:21] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:40:21] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:40:21] [INFO ] [Nat]Absence check using state equation in 53 ms returned sat
[2025-06-01 07:40:21] [INFO ] [Nat]Added 18 Read/Feed constraints in 5 ms returned sat
[2025-06-01 07:40:21] [INFO ] Deduced a trap composed of 15 places in 72 ms of which 2 ms to minimize.
[2025-06-01 07:40:21] [INFO ] Deduced a trap composed of 16 places in 71 ms of which 1 ms to minimize.
[2025-06-01 07:40:21] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 163 ms
[2025-06-01 07:40:21] [INFO ] Computed and/alt/rep : 59/193/53 causal constraints (skipped 70 transitions) in 12 ms.
[2025-06-01 07:40:21] [INFO ] Added : 12 causal constraints over 3 iterations in 69 ms. Result :sat
Minimization took 45 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[628] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[628] Max Struct:[+inf]
Support contains 1 out of 81 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 81/81 places, 204/204 transitions.
Applied a total of 0 rules in 3 ms. Remains 81 /81 variables (removed 0) and now considering 204/204 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 3 ms. Remains : 81/81 places, 204/204 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 81/81 places, 204/204 transitions.
Applied a total of 0 rules in 3 ms. Remains 81 /81 variables (removed 0) and now considering 204/204 (removed 0) transitions.
[2025-06-01 07:40:23] [INFO ] Flow matrix only has 125 transitions (discarded 79 similar events)
[2025-06-01 07:40:23] [INFO ] Invariant cache hit.
[2025-06-01 07:40:23] [INFO ] Implicit Places using invariants in 109 ms returned []
[2025-06-01 07:40:23] [INFO ] Flow matrix only has 125 transitions (discarded 79 similar events)
[2025-06-01 07:40:23] [INFO ] Invariant cache hit.
[2025-06-01 07:40:23] [INFO ] State equation strengthened by 18 read => feed constraints.
[2025-06-01 07:40:24] [INFO ] Implicit Places using invariants and state equation in 192 ms returned []
Implicit Place search using SMT with State Equation took 303 ms to find 0 implicit places.
[2025-06-01 07:40:24] [INFO ] Redundant transitions in 1 ms returned []
Running 202 sub problems to find dead transitions.
[2025-06-01 07:40:24] [INFO ] Flow matrix only has 125 transitions (discarded 79 similar events)
[2025-06-01 07:40:24] [INFO ] Invariant cache hit.
[2025-06-01 07:40:24] [INFO ] State equation strengthened by 18 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/81 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 202 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/81 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 202 unsolved
At refinement iteration 2 (OVERLAPS) 125/206 variables, 81/84 constraints. Problems are: Problem set: 0 solved, 202 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/206 variables, 18/102 constraints. Problems are: Problem set: 0 solved, 202 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/206 variables, 0/102 constraints. Problems are: Problem set: 0 solved, 202 unsolved
At refinement iteration 5 (OVERLAPS) 0/206 variables, 0/102 constraints. Problems are: Problem set: 0 solved, 202 unsolved
No progress, stopping.
After SMT solving in domain Real declared 206/206 variables, and 102 constraints, problems are : Problem set: 0 solved, 202 unsolved in 5687 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 81/81 constraints, ReadFeed: 18/18 constraints, PredecessorRefiner: 202/202 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 202 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/81 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 202 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/81 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 202 unsolved
At refinement iteration 2 (OVERLAPS) 125/206 variables, 81/84 constraints. Problems are: Problem set: 0 solved, 202 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/206 variables, 18/102 constraints. Problems are: Problem set: 0 solved, 202 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/206 variables, 202/304 constraints. Problems are: Problem set: 0 solved, 202 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/206 variables, 0/304 constraints. Problems are: Problem set: 0 solved, 202 unsolved
At refinement iteration 6 (OVERLAPS) 0/206 variables, 0/304 constraints. Problems are: Problem set: 0 solved, 202 unsolved
No progress, stopping.
After SMT solving in domain Int declared 206/206 variables, and 304 constraints, problems are : Problem set: 0 solved, 202 unsolved in 7476 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 81/81 constraints, ReadFeed: 18/18 constraints, PredecessorRefiner: 202/202 constraints, Known Traps: 0/0 constraints]
After SMT, in 13371ms problems are : Problem set: 0 solved, 202 unsolved
Search for dead transitions found 0 dead transitions in 13373ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 13685 ms. Remains : 81/81 places, 204/204 transitions.
[2025-06-01 07:40:37] [INFO ] Flow matrix only has 125 transitions (discarded 79 similar events)
Found an invariant !
This invariant on transitions {31=1, 63=1, 109=1, 123=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {31=1, 63=1, 109=1, 123=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 19 ms. (steps per millisecond=526 ) properties (out of 1) seen :[4]
Current structural bounds on expressions (after cover walk) : Max Seen:[628] Max Struct:[+inf]
[2025-06-01 07:40:37] [INFO ] Flow matrix only has 125 transitions (discarded 79 similar events)
[2025-06-01 07:40:37] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[628] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 1409 ms. (709 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 505 ms. (1976 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[628] Max Struct:[+inf]
[2025-06-01 07:40:39] [INFO ] Flow matrix only has 125 transitions (discarded 79 similar events)
[2025-06-01 07:40:39] [INFO ] Invariant cache hit.
[2025-06-01 07:40:39] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:40:39] [INFO ] [Real]Absence check using state equation in 40 ms returned sat
[2025-06-01 07:40:39] [INFO ] State equation strengthened by 18 read => feed constraints.
[2025-06-01 07:40:39] [INFO ] [Real]Added 18 Read/Feed constraints in 7 ms returned sat
[2025-06-01 07:40:39] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:40:39] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:40:39] [INFO ] [Nat]Absence check using state equation in 51 ms returned sat
[2025-06-01 07:40:39] [INFO ] [Nat]Added 18 Read/Feed constraints in 6 ms returned sat
[2025-06-01 07:40:39] [INFO ] Deduced a trap composed of 15 places in 112 ms of which 2 ms to minimize.
[2025-06-01 07:40:39] [INFO ] Deduced a trap composed of 16 places in 106 ms of which 2 ms to minimize.
[2025-06-01 07:40:39] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 238 ms
[2025-06-01 07:40:39] [INFO ] Computed and/alt/rep : 59/193/53 causal constraints (skipped 70 transitions) in 11 ms.
[2025-06-01 07:40:39] [INFO ] Added : 12 causal constraints over 3 iterations in 56 ms. Result :sat
Minimization took 29 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[628] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[628] Max Struct:[+inf]
Support contains 1 out of 81 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 81/81 places, 204/204 transitions.
Applied a total of 0 rules in 3 ms. Remains 81 /81 variables (removed 0) and now considering 204/204 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 3 ms. Remains : 81/81 places, 204/204 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 81/81 places, 204/204 transitions.
Applied a total of 0 rules in 2 ms. Remains 81 /81 variables (removed 0) and now considering 204/204 (removed 0) transitions.
[2025-06-01 07:40:41] [INFO ] Flow matrix only has 125 transitions (discarded 79 similar events)
[2025-06-01 07:40:41] [INFO ] Invariant cache hit.
[2025-06-01 07:40:41] [INFO ] Implicit Places using invariants in 98 ms returned []
[2025-06-01 07:40:41] [INFO ] Flow matrix only has 125 transitions (discarded 79 similar events)
[2025-06-01 07:40:41] [INFO ] Invariant cache hit.
[2025-06-01 07:40:41] [INFO ] State equation strengthened by 18 read => feed constraints.
[2025-06-01 07:40:42] [INFO ] Implicit Places using invariants and state equation in 177 ms returned []
Implicit Place search using SMT with State Equation took 276 ms to find 0 implicit places.
[2025-06-01 07:40:42] [INFO ] Redundant transitions in 0 ms returned []
Running 202 sub problems to find dead transitions.
[2025-06-01 07:40:42] [INFO ] Flow matrix only has 125 transitions (discarded 79 similar events)
[2025-06-01 07:40:42] [INFO ] Invariant cache hit.
[2025-06-01 07:40:42] [INFO ] State equation strengthened by 18 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/81 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 202 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/81 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 202 unsolved
At refinement iteration 2 (OVERLAPS) 125/206 variables, 81/84 constraints. Problems are: Problem set: 0 solved, 202 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/206 variables, 18/102 constraints. Problems are: Problem set: 0 solved, 202 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/206 variables, 0/102 constraints. Problems are: Problem set: 0 solved, 202 unsolved
At refinement iteration 5 (OVERLAPS) 0/206 variables, 0/102 constraints. Problems are: Problem set: 0 solved, 202 unsolved
No progress, stopping.
After SMT solving in domain Real declared 206/206 variables, and 102 constraints, problems are : Problem set: 0 solved, 202 unsolved in 6595 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 81/81 constraints, ReadFeed: 18/18 constraints, PredecessorRefiner: 202/202 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 202 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/81 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 202 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/81 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 202 unsolved
At refinement iteration 2 (OVERLAPS) 125/206 variables, 81/84 constraints. Problems are: Problem set: 0 solved, 202 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/206 variables, 18/102 constraints. Problems are: Problem set: 0 solved, 202 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/206 variables, 202/304 constraints. Problems are: Problem set: 0 solved, 202 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/206 variables, 0/304 constraints. Problems are: Problem set: 0 solved, 202 unsolved
At refinement iteration 6 (OVERLAPS) 0/206 variables, 0/304 constraints. Problems are: Problem set: 0 solved, 202 unsolved
No progress, stopping.
After SMT solving in domain Int declared 206/206 variables, and 304 constraints, problems are : Problem set: 0 solved, 202 unsolved in 6881 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 81/81 constraints, ReadFeed: 18/18 constraints, PredecessorRefiner: 202/202 constraints, Known Traps: 0/0 constraints]
After SMT, in 13613ms problems are : Problem set: 0 solved, 202 unsolved
Search for dead transitions found 0 dead transitions in 13616ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 13899 ms. Remains : 81/81 places, 204/204 transitions.
[2025-06-01 07:40:55] [INFO ] Flow matrix only has 125 transitions (discarded 79 similar events)
Found an invariant !
This invariant on transitions {31=1, 63=1, 109=1, 123=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {31=1, 63=1, 109=1, 123=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 32 ms. (steps per millisecond=312 ) properties (out of 1) seen :[2]
Current structural bounds on expressions (after cover walk) : Max Seen:[628] Max Struct:[+inf]
[2025-06-01 07:40:55] [INFO ] Flatten gal took : 11 ms
RANDOM walk for 40001 steps (8 resets) in 83 ms. (476 steps per ms) remains 1/1 properties
[2025-06-01 07:40:55] [INFO ] Flatten gal took : 10 ms
[2025-06-01 07:40:55] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality13624329434233881527.gal : 2 ms
[2025-06-01 07:40:55] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality13281487859936767848.prop : 0 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202405141337/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality13624329434233881527.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality13281487859936767848.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202405141337/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...330
BEST_FIRST walk for 40004 steps (8 resets) in 59 ms. (666 steps per ms) remains 1/1 properties
Loading property file /tmp/ReachabilityCardinality13281487859936767848.prop.
SDD proceeding with computation,1 properties remain. new max is 4
SDD size :1 after 31
SDD proceeding with computation,1 properties remain. new max is 8
SDD size :31 after 915
SDD proceeding with computation,1 properties remain. new max is 16
SDD size :915 after 36013
SDD proceeding with computation,1 properties remain. new max is 32
SDD size :36013 after 93721
SDD proceeding with computation,1 properties remain. new max is 64
SDD size :93721 after 140314
SDD proceeding with computation,1 properties remain. new max is 128
SDD size :140314 after 236977
SDD proceeding with computation,1 properties remain. new max is 256
SDD size :236977 after 1.23419e+07
SDD proceeding with computation,1 properties remain. new max is 512
SDD size :1.23419e+07 after 3.9315e+07
Interrupted probabilistic random walk after 1730732 steps, run timeout after 3001 ms. (steps per millisecond=576 ) properties seen :0 out of 1
Probabilistic random walk after 1730732 steps, saw 1119392 distinct states, run finished after 3001 ms. (steps per millisecond=576 ) properties seen :0
[2025-06-01 07:40:58] [INFO ] Flow matrix only has 125 transitions (discarded 79 similar events)
[2025-06-01 07:40:58] [INFO ] Invariant cache hit.
[2025-06-01 07:40:58] [INFO ] State equation strengthened by 18 read => feed constraints.
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) 2/3 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/3 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 8/11 variables, 2/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/11 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 71/82 variables, 6/9 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/82 variables, 0/9 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 10/92 variables, 2/11 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/92 variables, 4/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/92 variables, 0/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 97/189 variables, 57/72 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/189 variables, 18/90 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 12 (INCLUDED_ONLY) 0/189 variables, 0/90 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 6/195 variables, 1/91 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/195 variables, 0/91 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 10/205 variables, 10/101 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/205 variables, 0/101 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 1/206 variables, 1/102 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/206 variables, 0/102 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 0/206 variables, 0/102 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 206/206 variables, and 102 constraints, problems are : Problem set: 0 solved, 1 unsolved in 151 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 81/81 constraints, ReadFeed: 18/18 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
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) 2/3 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/3 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 8/11 variables, 2/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/11 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 71/82 variables, 6/9 constraints. Problems are: Problem set: 0 solved, 1 unsolved
SDD proceeding with computation,1 properties remain. new max is 1024
SDD size :3.9315e+07 after 9.31564e+07
At refinement iteration 6 (INCLUDED_ONLY) 0/82 variables, 1/10 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/82 variables, 0/10 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 10/92 variables, 2/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/92 variables, 4/16 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/92 variables, 0/16 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 97/189 variables, 57/73 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/189 variables, 18/91 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/189 variables, 0/91 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 6/195 variables, 1/92 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/195 variables, 0/92 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 10/205 variables, 10/102 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/205 variables, 0/102 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 1/206 variables, 1/103 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/206 variables, 0/103 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (OVERLAPS) 0/206 variables, 0/103 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 206/206 variables, and 103 constraints, problems are : Problem set: 0 solved, 1 unsolved in 152 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 81/81 constraints, ReadFeed: 18/18 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
After SMT, in 312ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 0 ms.
Support contains 1 out of 81 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 81/81 places, 204/204 transitions.
Applied a total of 0 rules in 3 ms. Remains 81 /81 variables (removed 0) and now considering 204/204 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 4 ms. Remains : 81/81 places, 204/204 transitions.
RANDOM walk for 40000 steps (8 resets) in 95 ms. (416 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (8 resets) in 41 ms. (952 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1703772 steps, run timeout after 3001 ms. (steps per millisecond=567 ) properties seen :0 out of 1
Probabilistic random walk after 1703772 steps, saw 1102611 distinct states, run finished after 3003 ms. (steps per millisecond=567 ) properties seen :0
[2025-06-01 07:41:02] [INFO ] Flow matrix only has 125 transitions (discarded 79 similar events)
[2025-06-01 07:41:02] [INFO ] Invariant cache hit.
[2025-06-01 07:41:02] [INFO ] State equation strengthened by 18 read => feed constraints.
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) 2/3 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/3 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 8/11 variables, 2/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/11 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 71/82 variables, 6/9 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/82 variables, 0/9 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 10/92 variables, 2/11 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/92 variables, 4/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/92 variables, 0/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 97/189 variables, 57/72 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/189 variables, 18/90 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 12 (INCLUDED_ONLY) 0/189 variables, 0/90 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 6/195 variables, 1/91 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/195 variables, 0/91 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 10/205 variables, 10/101 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/205 variables, 0/101 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 1/206 variables, 1/102 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/206 variables, 0/102 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 0/206 variables, 0/102 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 206/206 variables, and 102 constraints, problems are : Problem set: 0 solved, 1 unsolved in 132 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 81/81 constraints, ReadFeed: 18/18 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
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) 2/3 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/3 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 8/11 variables, 2/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/11 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 71/82 variables, 6/9 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/82 variables, 1/10 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/82 variables, 0/10 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 10/92 variables, 2/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/92 variables, 4/16 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/92 variables, 0/16 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 97/189 variables, 57/73 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/189 variables, 18/91 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/189 variables, 0/91 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 6/195 variables, 1/92 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/195 variables, 0/92 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 10/205 variables, 10/102 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/205 variables, 0/102 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 1/206 variables, 1/103 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/206 variables, 0/103 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (OVERLAPS) 0/206 variables, 0/103 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 206/206 variables, and 103 constraints, problems are : Problem set: 0 solved, 1 unsolved in 134 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 81/81 constraints, ReadFeed: 18/18 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
After SMT, in 272ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 0 ms.
Support contains 1 out of 81 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 81/81 places, 204/204 transitions.
Applied a total of 0 rules in 5 ms. Remains 81 /81 variables (removed 0) and now considering 204/204 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 5 ms. Remains : 81/81 places, 204/204 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 81/81 places, 204/204 transitions.
Applied a total of 0 rules in 4 ms. Remains 81 /81 variables (removed 0) and now considering 204/204 (removed 0) transitions.
[2025-06-01 07:41:02] [INFO ] Flow matrix only has 125 transitions (discarded 79 similar events)
[2025-06-01 07:41:02] [INFO ] Invariant cache hit.
[2025-06-01 07:41:02] [INFO ] Implicit Places using invariants in 115 ms returned []
[2025-06-01 07:41:02] [INFO ] Flow matrix only has 125 transitions (discarded 79 similar events)
[2025-06-01 07:41:02] [INFO ] Invariant cache hit.
[2025-06-01 07:41:02] [INFO ] State equation strengthened by 18 read => feed constraints.
[2025-06-01 07:41:02] [INFO ] Implicit Places using invariants and state equation in 297 ms returned []
Implicit Place search using SMT with State Equation took 413 ms to find 0 implicit places.
[2025-06-01 07:41:02] [INFO ] Redundant transitions in 1 ms returned []
Running 202 sub problems to find dead transitions.
[2025-06-01 07:41:02] [INFO ] Flow matrix only has 125 transitions (discarded 79 similar events)
[2025-06-01 07:41:02] [INFO ] Invariant cache hit.
[2025-06-01 07:41:02] [INFO ] State equation strengthened by 18 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/81 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 202 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/81 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 202 unsolved
At refinement iteration 2 (OVERLAPS) 125/206 variables, 81/84 constraints. Problems are: Problem set: 0 solved, 202 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/206 variables, 18/102 constraints. Problems are: Problem set: 0 solved, 202 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/206 variables, 0/102 constraints. Problems are: Problem set: 0 solved, 202 unsolved
At refinement iteration 5 (OVERLAPS) 0/206 variables, 0/102 constraints. Problems are: Problem set: 0 solved, 202 unsolved
No progress, stopping.
After SMT solving in domain Real declared 206/206 variables, and 102 constraints, problems are : Problem set: 0 solved, 202 unsolved in 5182 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 81/81 constraints, ReadFeed: 18/18 constraints, PredecessorRefiner: 202/202 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 202 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/81 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 202 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/81 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 202 unsolved
At refinement iteration 2 (OVERLAPS) 125/206 variables, 81/84 constraints. Problems are: Problem set: 0 solved, 202 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/206 variables, 18/102 constraints. Problems are: Problem set: 0 solved, 202 unsolved
SDD proceeding with computation,1 properties remain. new max is 2048
SDD size :9.31564e+07 after 2.00734e+08
At refinement iteration 4 (INCLUDED_ONLY) 0/206 variables, 202/304 constraints. Problems are: Problem set: 0 solved, 202 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/206 variables, 0/304 constraints. Problems are: Problem set: 0 solved, 202 unsolved
At refinement iteration 6 (OVERLAPS) 0/206 variables, 0/304 constraints. Problems are: Problem set: 0 solved, 202 unsolved
No progress, stopping.
After SMT solving in domain Int declared 206/206 variables, and 304 constraints, problems are : Problem set: 0 solved, 202 unsolved in 6501 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 81/81 constraints, ReadFeed: 18/18 constraints, PredecessorRefiner: 202/202 constraints, Known Traps: 0/0 constraints]
After SMT, in 11897ms problems are : Problem set: 0 solved, 202 unsolved
Search for dead transitions found 0 dead transitions in 11901ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 12325 ms. Remains : 81/81 places, 204/204 transitions.
Attempting over-approximation, by ignoring read arcs.
Ensure Unique test removed 79 transitions
Reduce isomorphic transitions removed 79 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 7 transitions
Trivial Post-agglo rules discarded 7 transitions
Performed 7 trivial Post agglomeration. Transition count delta: 7
Iterating post reduction 0 with 86 rules applied. Total rules applied 86 place count 81 transition count 118
Reduce places removed 7 places and 0 transitions.
Iterating post reduction 1 with 7 rules applied. Total rules applied 93 place count 74 transition count 118
Performed 16 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 16 Pre rules applied. Total rules applied 93 place count 74 transition count 102
Deduced a syphon composed of 16 places in 0 ms
Reduce places removed 16 places and 0 transitions.
Iterating global reduction 2 with 32 rules applied. Total rules applied 125 place count 58 transition count 102
Performed 15 Post agglomeration using F-continuation condition.Transition count delta: 15
Deduced a syphon composed of 15 places in 0 ms
Reduce places removed 15 places and 0 transitions.
Iterating global reduction 2 with 30 rules applied. Total rules applied 155 place count 43 transition count 87
Discarding 7 places :
Symmetric choice reduction at 2 with 7 rule applications. Total rules 162 place count 36 transition count 73
Iterating global reduction 2 with 7 rules applied. Total rules applied 169 place count 36 transition count 73
Discarding 7 places :
Symmetric choice reduction at 2 with 7 rule applications. Total rules 176 place count 29 transition count 59
Iterating global reduction 2 with 7 rules applied. Total rules applied 183 place count 29 transition count 59
Discarding 7 places :
Symmetric choice reduction at 2 with 7 rule applications. Total rules 190 place count 22 transition count 45
Iterating global reduction 2 with 7 rules applied. Total rules applied 197 place count 22 transition count 45
Ensure Unique test removed 7 transitions
Reduce isomorphic transitions removed 7 transitions.
Iterating post reduction 2 with 7 rules applied. Total rules applied 204 place count 22 transition count 38
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 1 Pre rules applied. Total rules applied 204 place count 22 transition count 37
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 3 with 2 rules applied. Total rules applied 206 place count 21 transition count 37
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 0
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 3 with 2 rules applied. Total rules applied 208 place count 20 transition count 37
Applied a total of 208 rules in 19 ms. Remains 20 /81 variables (removed 61) and now considering 37/204 (removed 167) transitions.
Running SMT prover for 1 properties.
// Phase 1: matrix 37 rows 20 cols
[2025-06-01 07:41:14] [INFO ] Computed 3 invariants in 1 ms
[2025-06-01 07:41:14] [INFO ] [Real]Absence check using 3 positive place invariants in 1 ms returned sat
[2025-06-01 07:41:14] [INFO ] After 15ms SMT Verify possible using state equation in real domain returned unsat :0 sat :1
[2025-06-01 07:41:14] [INFO ] State equation strengthened by 2 read => feed constraints.
[2025-06-01 07:41:14] [INFO ] After 4ms SMT Verify possible using 2 Read/Feed constraints in real domain returned unsat :0 sat :0 real:1
[2025-06-01 07:41:14] [INFO ] After 44ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
[2025-06-01 07:41:14] [INFO ] [Nat]Absence check using 3 positive place invariants in 1 ms returned sat
[2025-06-01 07:41:14] [INFO ] After 14ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
[2025-06-01 07:41:14] [INFO ] After 3ms SMT Verify possible using 2 Read/Feed constraints in natural domain returned unsat :0 sat :1
TRAPS : Iteration 0
[2025-06-01 07:41:14] [INFO ] After 7ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
[2025-06-01 07:41:14] [INFO ] After 47ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
[2025-06-01 07:41:14] [INFO ] Flatten gal took : 2 ms
[2025-06-01 07:41:14] [INFO ] Flatten gal took : 1 ms
[2025-06-01 07:41:14] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality17510444346439726750.gal : 5 ms
[2025-06-01 07:41:14] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality2183671075751838150.prop : 0 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202405141337/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality17510444346439726750.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality2183671075751838150.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202405141337/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...329
Loading property file /tmp/ReachabilityCardinality2183671075751838150.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 60
SDD proceeding with computation,1 properties remain. new max is 16
SDD size :60 after 900
SDD proceeding with computation,1 properties remain. new max is 32
SDD size :900 after 4560
SDD proceeding with computation,1 properties remain. new max is 64
SDD size :4560 after 19900
SDD proceeding with computation,1 properties remain. new max is 128
SDD size :19900 after 81980
SDD proceeding with computation,1 properties remain. new max is 256
SDD size :81980 after 330300
SDD proceeding with computation,1 properties remain. new max is 512
SDD size :330300 after 1.32104e+06
SDD proceeding with computation,1 properties remain. new max is 1024
SDD size :1.32104e+06 after 5.2737e+06
SDD proceeding with computation,1 properties remain. new max is 2048
SDD size :5.2737e+06 after 2.10536e+07
Detected timeout of ITS tools.
[2025-06-01 07:41:29] [INFO ] Flatten gal took : 3 ms
[2025-06-01 07:41:29] [INFO ] Applying decomposition
[2025-06-01 07:41:29] [INFO ] Flatten gal took : 2 ms
Converted graph to binary with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202405141337/bin/convert-linux64' '-i' '/tmp/graph18177092253721815585.txt' '-o' '/tmp/graph18177092253721815585.bin' '-w' '/tmp/graph18177092253721815585.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202405141337/bin/louvain-linux64' '/tmp/graph18177092253721815585.bin' '-l' '-1' '-v' '-w' '/tmp/graph18177092253721815585.weights' '-q' '0' '-e' '0.001'
[2025-06-01 07:41:29] [INFO ] Decomposing Gal with order
[2025-06-01 07:41:29] [INFO ] Rewriting arrays to variables to allow decomposition.
[2025-06-01 07:41:29] [INFO ] Removed a total of 30 redundant transitions.
[2025-06-01 07:41:29] [INFO ] Flatten gal took : 5 ms
[2025-06-01 07:41:29] [INFO ] Fuse similar labels procedure discarded/fused a total of 6 labels/synchronizations in 1 ms.
[2025-06-01 07:41:29] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality2408263927882860445.gal : 1 ms
[2025-06-01 07:41:29] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality16089474291722318218.prop : 0 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202405141337/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality2408263927882860445.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality16089474291722318218.prop' '--nowitness'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202405141337/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...308
Loading property file /tmp/ReachabilityCardinality16089474291722318218.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 30
SDD proceeding with computation,1 properties remain. new max is 16
SDD size :30 after 265
SDD proceeding with computation,1 properties remain. new max is 32
SDD size :265 after 585
SDD proceeding with computation,1 properties remain. new max is 64
SDD size :585 after 1225
SDD proceeding with computation,1 properties remain. new max is 128
SDD size :1225 after 2505
SDD proceeding with computation,1 properties remain. new max is 256
SDD size :2505 after 5065
SDD proceeding with computation,1 properties remain. new max is 512
SDD size :5065 after 10185
SDD proceeding with computation,1 properties remain. new max is 1024
SDD size :10185 after 20425
SDD proceeding with computation,1 properties remain. new max is 2048
SDD size :20425 after 40905
SDD proceeding with computation,1 properties remain. new max is 4096
SDD size :40905 after 81865
Detected timeout of ITS tools.
Over-approximation ignoring read arcs solved 0 properties in 30216 ms.
ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
[2025-06-01 07:41:45] [INFO ] Flatten gal took : 10 ms
[2025-06-01 07:41:45] [INFO ] Applying decomposition
[2025-06-01 07:41:45] [INFO ] Flatten gal took : 10 ms
Converted graph to binary with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202405141337/bin/convert-linux64' '-i' '/tmp/graph5900340233042115081.txt' '-o' '/tmp/graph5900340233042115081.bin' '-w' '/tmp/graph5900340233042115081.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202405141337/bin/louvain-linux64' '/tmp/graph5900340233042115081.bin' '-l' '-1' '-v' '-w' '/tmp/graph5900340233042115081.weights' '-q' '0' '-e' '0.001'
[2025-06-01 07:41:45] [INFO ] Decomposing Gal with order
[2025-06-01 07:41:45] [INFO ] Rewriting arrays to variables to allow decomposition.
[2025-06-01 07:41:45] [INFO ] Removed a total of 345 redundant transitions.
[2025-06-01 07:41:45] [INFO ] Flatten gal took : 39 ms
[2025-06-01 07:41:45] [INFO ] Fuse similar labels procedure discarded/fused a total of 111 labels/synchronizations in 13 ms.
[2025-06-01 07:41:45] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality16118993406812209139.gal : 4 ms
[2025-06-01 07:41:45] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality10450678795765387332.prop : 0 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202405141337/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality16118993406812209139.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality10450678795765387332.prop' '--nowitness'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202405141337/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...309
Loading property file /tmp/ReachabilityCardinality10450678795765387332.prop.
Detected timeout of ITS tools.
Current structural bounds on expressions (After reachability solving 0 queries.) : Max Seen:[628] Max Struct:[+inf]
Ending property specific reduction for FunctionPointer-PT-b004-UpperBounds-10 in 136660 ms.
[2025-06-01 07:42:35] [INFO ] Flatten gal took : 11 ms
[2025-06-01 07:42:35] [INFO ] Applying decomposition
[2025-06-01 07:42:35] [INFO ] Flatten gal took : 9 ms
Converted graph to binary with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202405141337/bin/convert-linux64' '-i' '/tmp/graph16546973094811217086.txt' '-o' '/tmp/graph16546973094811217086.bin' '-w' '/tmp/graph16546973094811217086.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202405141337/bin/louvain-linux64' '/tmp/graph16546973094811217086.bin' '-l' '-1' '-v' '-w' '/tmp/graph16546973094811217086.weights' '-q' '0' '-e' '0.001'
[2025-06-01 07:42:35] [INFO ] Decomposing Gal with order
[2025-06-01 07:42:35] [INFO ] Rewriting arrays to variables to allow decomposition.
[2025-06-01 07:42:35] [INFO ] Removed a total of 383 redundant transitions.
[2025-06-01 07:42:35] [INFO ] Flatten gal took : 19 ms
[2025-06-01 07:42:35] [INFO ] Fuse similar labels procedure discarded/fused a total of 111 labels/synchronizations in 6 ms.
[2025-06-01 07:42:35] [INFO ] Time to serialize gal into /tmp/UpperBounds13490729468972680686.gal : 3 ms
[2025-06-01 07:42:35] [INFO ] Time to serialize properties into /tmp/UpperBounds11401454886957164143.prop : 1 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202405141337/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/UpperBounds13490729468972680686.gal' '-t' 'CGAL' '-reachable-file' '/tmp/UpperBounds11401454886957164143.prop' '--nowitness'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202405141337/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...285
Loading property file /tmp/UpperBounds11401454886957164143.prop.
Detected timeout of ITS tools.
[2025-06-01 08:10:26] [INFO ] Flatten gal took : 8 ms
[2025-06-01 08:10:26] [INFO ] Time to serialize gal into /tmp/UpperBounds8104467207946029881.gal : 2 ms
[2025-06-01 08:10:26] [INFO ] Time to serialize properties into /tmp/UpperBounds8242657982715625643.prop : 1 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202405141337/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/UpperBounds8104467207946029881.gal' '-t' 'CGAL' '-reachable-file' '/tmp/UpperBounds8242657982715625643.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202405141337/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...304
Loading property file /tmp/UpperBounds8242657982715625643.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
+ export PYTHONPATH=/home/mcc/BenchKit/itstools/pylibs
+ PYTHONPATH=/home/mcc/BenchKit/itstools/pylibs
+ export LD_LIBRARY_PATH=/home/mcc/BenchKit/itstools/pylibs:
+ LD_LIBRARY_PATH=/home/mcc/BenchKit/itstools/pylibs:
++ sed s/.jar//
++ ls /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202405141337.jar
++ perl -pe 's/.*\.//g'
+ VERSION=202405141337
+ echo 'Running Version 202405141337'
+ /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="FunctionPointer-PT-b004"
export BK_EXAMINATION="UpperBounds"
export BK_TOOL="gold2024"
export BK_RESULT_DIR="/tmp/BK_RESULTS/OUTPUTS"
export BK_TIME_CONFINEMENT="3600"
export BK_MEMORY_CONFINEMENT="16384"
export BK_BIN_PATH="/home/mcc/BenchKit/bin/"

# this is specific to your benchmark or test

export BIN_DIR="$HOME/BenchKit/bin"

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

# this is for BenchKit: explicit launching of the test
echo "====================================================================="
echo " Generated by BenchKit 2-5832"
echo " Executing tool gold2024"
echo " Input is FunctionPointer-PT-b004, examination is UpperBounds"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r111-smll-174867015800009"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/FunctionPointer-PT-b004.tgz
mv FunctionPointer-PT-b004 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 ;