Execution Chart

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Trace from the execution

Formatting '/data/fkordon/mcc2025-input.r100-smll-174867007400101.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2025-input.qcow2 backing_fmt=qcow2 cluster_size=65536 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
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=====================================================================
Generated by BenchKit 2-5832
Executing tool itstools
Input is FunctionPointer-PT-b064, examination is UpperBounds
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r100-smll-174867007400101
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 792K
-rw-r--r-- 1 mcc users 4.9K May 29 14:47 CTLCardinality.txt
-rw-r--r-- 1 mcc users 44K May 29 14:47 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.4K May 29 14:47 CTLFireability.txt
-rw-r--r-- 1 mcc users 48K May 29 14:47 CTLFireability.xml
-rw-r--r-- 1 mcc users 3.7K May 29 14:47 LTLCardinality.txt
-rw-r--r-- 1 mcc users 25K 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 14K May 29 14:47 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 147K May 29 14:47 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 5.6K May 29 14:47 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 40K 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-b064-UpperBounds-00
FORMULA_NAME FunctionPointer-PT-b064-UpperBounds-01
FORMULA_NAME FunctionPointer-PT-b064-UpperBounds-02
FORMULA_NAME FunctionPointer-PT-b064-UpperBounds-03
FORMULA_NAME FunctionPointer-PT-b064-UpperBounds-04
FORMULA_NAME FunctionPointer-PT-b064-UpperBounds-05
FORMULA_NAME FunctionPointer-PT-b064-UpperBounds-06
FORMULA_NAME FunctionPointer-PT-b064-UpperBounds-07
FORMULA_NAME FunctionPointer-PT-b064-UpperBounds-08
FORMULA_NAME FunctionPointer-PT-b064-UpperBounds-09
FORMULA_NAME FunctionPointer-PT-b064-UpperBounds-10
FORMULA_NAME FunctionPointer-PT-b064-UpperBounds-11
FORMULA_NAME FunctionPointer-PT-b064-UpperBounds-12
FORMULA_NAME FunctionPointer-PT-b064-UpperBounds-13
FORMULA_NAME FunctionPointer-PT-b064-UpperBounds-14
FORMULA_NAME FunctionPointer-PT-b064-UpperBounds-15

=== Now, execution of the tool begins

BK_START 1748795469768

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=UpperBounds
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=FunctionPointer-PT-b064
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
UpperBounds PT
Running Version 202505121319
[2025-06-01 16:31:12] [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 16:31:12] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2025-06-01 16:31:12] [INFO ] Load time of PNML (sax parser for PT used): 292 ms
[2025-06-01 16:31:12] [INFO ] Transformed 306 places.
[2025-06-01 16:31:12] [INFO ] Transformed 840 transitions.
[2025-06-01 16:31:12] [INFO ] Parsed PT model containing 306 places and 840 transitions and 3392 arcs in 514 ms.
Parsed 16 properties from file /home/mcc/execution/UpperBounds.xml in 14 ms.
Deduced a syphon composed of 84 places in 10 ms
Reduce places removed 84 places and 192 transitions.
FORMULA FunctionPointer-PT-b064-UpperBounds-01 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA FunctionPointer-PT-b064-UpperBounds-04 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA FunctionPointer-PT-b064-UpperBounds-07 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
Current structural bounds on expressions (Initially) : Max Seen:[0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (Before main loop) : Max Seen:[0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 16:31:13] [INFO ] Flow matrix only has 414 transitions (discarded 234 similar events)
// Phase 1: matrix 414 rows 222 cols
[2025-06-01 16:31:13] [INFO ] Computed 4 invariants in 33 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[+inf, +inf, 1, 1, 64, +inf, 64, +inf, +inf, 64, +inf, 64, +inf]
FORMULA FunctionPointer-PT-b064-UpperBounds-05 1 TECHNIQUES TOPOLOGICAL INITIAL_STATE
RANDOM walk for 10001 steps (4 resets) in 82 ms. (120 steps per ms)
FORMULA FunctionPointer-PT-b064-UpperBounds-14 64 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA FunctionPointer-PT-b064-UpperBounds-03 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 100009 steps (64 resets) in 246 ms. (404 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[3, 1, 6, 1, 3, 6, 4, 54, 1, 4] Max Struct:[+inf, +inf, 64, +inf, 64, +inf, +inf, 64, +inf, +inf]
[2025-06-01 16:31:13] [INFO ] Flow matrix only has 414 transitions (discarded 234 similar events)
[2025-06-01 16:31:13] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-01 16:31:13] [INFO ] [Real]Absence check using 3 positive place invariants in 10 ms returned sat
[2025-06-01 16:31:13] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 2 ms returned sat
[2025-06-01 16:31:14] [INFO ] [Real]Absence check using state equation in 370 ms returned sat
[2025-06-01 16:31:14] [INFO ] State equation strengthened by 65 read => feed constraints.
[2025-06-01 16:31:14] [INFO ] [Real]Added 65 Read/Feed constraints in 33 ms returned sat
[2025-06-01 16:31:14] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-01 16:31:14] [INFO ] [Nat]Absence check using 3 positive place invariants in 20 ms returned sat
[2025-06-01 16:31:14] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2025-06-01 16:31:14] [INFO ] [Nat]Absence check using state equation in 382 ms returned sat
[2025-06-01 16:31:14] [INFO ] [Nat]Added 65 Read/Feed constraints in 36 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:31:15] [INFO ] Deduced a trap composed of 21 places in 327 ms of which 14 ms to minimize.
[2025-06-01 16:31:15] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 412 ms
[2025-06-01 16:31:15] [INFO ] Computed and/alt/rep : 57/91/57 causal constraints (skipped 355 transitions) in 153 ms.
[2025-06-01 16:31:15] [INFO ] Added : 2 causal constraints over 1 iterations in 293 ms. Result :sat
Minimization took 182 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-01 16:31:16] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 16:31:16] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2025-06-01 16:31:16] [INFO ] [Real]Absence check using state equation in 211 ms returned sat
[2025-06-01 16:31:16] [INFO ] [Real]Added 65 Read/Feed constraints in 20 ms returned sat
[2025-06-01 16:31:16] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-01 16:31:16] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2025-06-01 16:31:16] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 0 ms returned sat
[2025-06-01 16:31:16] [INFO ] [Nat]Absence check using state equation in 206 ms returned sat
[2025-06-01 16:31:16] [INFO ] [Nat]Added 65 Read/Feed constraints in 19 ms returned sat
[2025-06-01 16:31:16] [INFO ] Computed and/alt/rep : 57/91/57 causal constraints (skipped 355 transitions) in 92 ms.
[2025-06-01 16:31:16] [INFO ] Added : 1 causal constraints over 1 iterations in 193 ms. Result :sat
Minimization took 132 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-01 16:31:17] [INFO ] [Real]Absence check using 3 positive place invariants in 6 ms returned sat
[2025-06-01 16:31:17] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 0 ms returned sat
[2025-06-01 16:31:17] [INFO ] [Real]Absence check using state equation in 180 ms returned sat
[2025-06-01 16:31:17] [INFO ] [Real]Added 65 Read/Feed constraints in 14 ms returned sat
[2025-06-01 16:31:17] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-01 16:31:17] [INFO ] [Nat]Absence check using 3 positive place invariants in 6 ms returned sat
[2025-06-01 16:31:17] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2025-06-01 16:31:17] [INFO ] [Nat]Absence check using state equation in 176 ms returned sat
[2025-06-01 16:31:17] [INFO ] [Nat]Added 65 Read/Feed constraints in 12 ms returned sat
[2025-06-01 16:31:17] [INFO ] Computed and/alt/rep : 57/91/57 causal constraints (skipped 355 transitions) in 77 ms.
[2025-06-01 16:31:17] [INFO ] Added : 0 causal constraints over 0 iterations in 125 ms. Result :sat
Minimization took 123 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-01 16:31:18] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2025-06-01 16:31:18] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 0 ms returned sat
[2025-06-01 16:31:18] [INFO ] [Real]Absence check using state equation in 155 ms returned sat
[2025-06-01 16:31:18] [INFO ] [Real]Added 65 Read/Feed constraints in 15 ms returned sat
[2025-06-01 16:31:18] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-01 16:31:18] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 16:31:18] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2025-06-01 16:31:18] [INFO ] [Nat]Absence check using state equation in 152 ms returned sat
[2025-06-01 16:31:18] [INFO ] [Nat]Added 65 Read/Feed constraints in 16 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:31:18] [INFO ] Deduced a trap composed of 21 places in 202 ms of which 10 ms to minimize.
[2025-06-01 16:31:18] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 240 ms
[2025-06-01 16:31:18] [INFO ] Computed and/alt/rep : 57/91/57 causal constraints (skipped 355 transitions) in 91 ms.
[2025-06-01 16:31:18] [INFO ] Added : 2 causal constraints over 1 iterations in 167 ms. Result :sat
Minimization took 158 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-01 16:31:19] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 16:31:19] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 0 ms returned sat
[2025-06-01 16:31:19] [INFO ] [Real]Absence check using state equation in 143 ms returned sat
[2025-06-01 16:31:19] [INFO ] [Real]Added 65 Read/Feed constraints in 18 ms returned sat
[2025-06-01 16:31:19] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-01 16:31:19] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 16:31:19] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2025-06-01 16:31:19] [INFO ] [Nat]Absence check using state equation in 173 ms returned sat
[2025-06-01 16:31:19] [INFO ] [Nat]Added 65 Read/Feed constraints in 18 ms returned sat
[2025-06-01 16:31:19] [INFO ] Computed and/alt/rep : 57/91/57 causal constraints (skipped 355 transitions) in 80 ms.
[2025-06-01 16:31:19] [INFO ] Added : 1 causal constraints over 1 iterations in 158 ms. Result :sat
Minimization took 114 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-01 16:31:19] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 16:31:19] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2025-06-01 16:31:20] [INFO ] [Real]Absence check using state equation in 175 ms returned sat
[2025-06-01 16:31:20] [INFO ] [Real]Added 65 Read/Feed constraints in 17 ms returned sat
[2025-06-01 16:31:20] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-01 16:31:20] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 16:31:20] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 2 ms returned sat
[2025-06-01 16:31:20] [INFO ] [Nat]Absence check using state equation in 173 ms returned sat
[2025-06-01 16:31:20] [INFO ] [Nat]Added 65 Read/Feed constraints in 17 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:31:20] [INFO ] Deduced a trap composed of 21 places in 244 ms of which 10 ms to minimize.
[2025-06-01 16:31:20] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 279 ms
[2025-06-01 16:31:20] [INFO ] Computed and/alt/rep : 57/91/57 causal constraints (skipped 355 transitions) in 57 ms.
[2025-06-01 16:31:20] [INFO ] Added : 2 causal constraints over 1 iterations in 148 ms. Result :sat
Minimization took 195 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-01 16:31:21] [INFO ] [Real]Absence check using 3 positive place invariants in 6 ms returned sat
[2025-06-01 16:31:21] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 0 ms returned sat
[2025-06-01 16:31:21] [INFO ] [Real]Absence check using state equation in 187 ms returned sat
[2025-06-01 16:31:21] [INFO ] [Real]Added 65 Read/Feed constraints in 18 ms returned sat
[2025-06-01 16:31:21] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-01 16:31:21] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2025-06-01 16:31:21] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2025-06-01 16:31:21] [INFO ] [Nat]Absence check using state equation in 179 ms returned sat
[2025-06-01 16:31:21] [INFO ] [Nat]Added 65 Read/Feed constraints in 22 ms returned sat
[2025-06-01 16:31:21] [INFO ] Computed and/alt/rep : 57/91/57 causal constraints (skipped 355 transitions) in 54 ms.
[2025-06-01 16:31:21] [INFO ] Added : 4 causal constraints over 2 iterations in 174 ms. Result :sat
Minimization took 143 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-01 16:31:22] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2025-06-01 16:31:22] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 3 ms returned sat
[2025-06-01 16:31:22] [INFO ] [Real]Absence check using state equation in 178 ms returned sat
[2025-06-01 16:31:22] [INFO ] [Real]Added 65 Read/Feed constraints in 19 ms returned sat
[2025-06-01 16:31:22] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-01 16:31:22] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2025-06-01 16:31:22] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2025-06-01 16:31:22] [INFO ] [Nat]Absence check using state equation in 166 ms returned sat
[2025-06-01 16:31:22] [INFO ] [Nat]Added 65 Read/Feed constraints in 18 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:31:22] [INFO ] Deduced a trap composed of 21 places in 230 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:31:23] [INFO ] Deduced a trap composed of 21 places in 182 ms of which 8 ms to minimize.
[2025-06-01 16:31:23] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 472 ms
[2025-06-01 16:31:23] [INFO ] Computed and/alt/rep : 57/91/57 causal constraints (skipped 355 transitions) in 46 ms.
[2025-06-01 16:31:23] [INFO ] Added : 2 causal constraints over 1 iterations in 147 ms. Result :sat
Minimization took 184 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-01 16:31:23] [INFO ] [Real]Absence check using 3 positive place invariants in 6 ms returned sat
[2025-06-01 16:31:23] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2025-06-01 16:31:23] [INFO ] [Real]Absence check using state equation in 209 ms returned sat
[2025-06-01 16:31:23] [INFO ] [Real]Added 65 Read/Feed constraints in 23 ms returned sat
[2025-06-01 16:31:23] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-01 16:31:23] [INFO ] [Nat]Absence check using 3 positive place invariants in 6 ms returned sat
[2025-06-01 16:31:23] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2025-06-01 16:31:24] [INFO ] [Nat]Absence check using state equation in 217 ms returned sat
[2025-06-01 16:31:24] [INFO ] [Nat]Added 65 Read/Feed constraints in 21 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:31:24] [INFO ] Deduced a trap composed of 21 places in 335 ms of which 15 ms to minimize.
[2025-06-01 16:31:24] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 383 ms
[2025-06-01 16:31:24] [INFO ] Computed and/alt/rep : 57/91/57 causal constraints (skipped 355 transitions) in 58 ms.
[2025-06-01 16:31:24] [INFO ] Added : 2 causal constraints over 1 iterations in 165 ms. Result :sat
Minimization took 168 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-01 16:31:25] [INFO ] [Real]Absence check using 3 positive place invariants in 6 ms returned sat
[2025-06-01 16:31:25] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2025-06-01 16:31:25] [INFO ] [Real]Absence check using state equation in 219 ms returned sat
[2025-06-01 16:31:25] [INFO ] [Real]Added 65 Read/Feed constraints in 33 ms returned sat
[2025-06-01 16:31:25] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-01 16:31:25] [INFO ] [Nat]Absence check using 3 positive place invariants in 7 ms returned sat
[2025-06-01 16:31:25] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2025-06-01 16:31:25] [INFO ] [Nat]Absence check using state equation in 211 ms returned sat
[2025-06-01 16:31:25] [INFO ] [Nat]Added 65 Read/Feed constraints in 36 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:31:26] [INFO ] Deduced a trap composed of 21 places in 330 ms of which 14 ms to minimize.
[2025-06-01 16:31:26] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 377 ms
[2025-06-01 16:31:26] [INFO ] Computed and/alt/rep : 57/91/57 causal constraints (skipped 355 transitions) in 58 ms.
[2025-06-01 16:31:26] [INFO ] Added : 1 causal constraints over 1 iterations in 165 ms. Result :sat
Minimization took 208 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[3, 1, 6, 1, 3, 6, 4, 54, 1, 4] Max Struct:[+inf, +inf, 64, +inf, 64, +inf, +inf, 64, +inf, +inf]
FORMULA FunctionPointer-PT-b064-UpperBounds-06 64 TECHNIQUES TOPOLOGICAL PARIKH_WALK
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[64, 1, 1, 3, 64, 4, 54, 1, 4] Max Struct:[+inf, +inf, +inf, 64, +inf, +inf, 64, +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 194 are kept as prefixes of interest. Removing 28 places using SCC suffix rule.4 ms
Discarding 28 places :
Also discarding 0 output transitions
Drop transitions (Empty/Sink Transition effects.) removed 38 transitions
Reduce isomorphic transitions removed 38 transitions.
Iterating post reduction 0 with 38 rules applied. Total rules applied 39 place count 194 transition count 610
Discarding 27 places :
Symmetric choice reduction at 1 with 27 rule applications. Total rules 66 place count 167 transition count 466
Iterating global reduction 1 with 27 rules applied. Total rules applied 93 place count 167 transition count 466
Ensure Unique test removed 40 transitions
Reduce isomorphic transitions removed 40 transitions.
Iterating post reduction 1 with 40 rules applied. Total rules applied 133 place count 167 transition count 426
Discarding 13 places :
Symmetric choice reduction at 2 with 13 rule applications. Total rules 146 place count 154 transition count 400
Iterating global reduction 2 with 13 rules applied. Total rules applied 159 place count 154 transition count 400
Discarding 7 places :
Symmetric choice reduction at 2 with 7 rule applications. Total rules 166 place count 147 transition count 386
Iterating global reduction 2 with 7 rules applied. Total rules applied 173 place count 147 transition count 386
Discarding 6 places :
Symmetric choice reduction at 2 with 6 rule applications. Total rules 179 place count 141 transition count 362
Iterating global reduction 2 with 6 rules applied. Total rules applied 185 place count 141 transition count 362
Discarding 5 places :
Symmetric choice reduction at 2 with 5 rule applications. Total rules 190 place count 136 transition count 352
Iterating global reduction 2 with 5 rules applied. Total rules applied 195 place count 136 transition count 352
Discarding 5 places :
Symmetric choice reduction at 2 with 5 rule applications. Total rules 200 place count 131 transition count 332
Iterating global reduction 2 with 5 rules applied. Total rules applied 205 place count 131 transition count 332
Discarding 4 places :
Symmetric choice reduction at 2 with 4 rule applications. Total rules 209 place count 127 transition count 316
Iterating global reduction 2 with 4 rules applied. Total rules applied 213 place count 127 transition count 316
Discarding 4 places :
Symmetric choice reduction at 2 with 4 rule applications. Total rules 217 place count 123 transition count 308
Iterating global reduction 2 with 4 rules applied. Total rules applied 221 place count 123 transition count 308
Discarding 4 places :
Symmetric choice reduction at 2 with 4 rule applications. Total rules 225 place count 119 transition count 300
Iterating global reduction 2 with 4 rules applied. Total rules applied 229 place count 119 transition count 300
Discarding 4 places :
Symmetric choice reduction at 2 with 4 rule applications. Total rules 233 place count 115 transition count 292
Iterating global reduction 2 with 4 rules applied. Total rules applied 237 place count 115 transition count 292
Discarding 4 places :
Symmetric choice reduction at 2 with 4 rule applications. Total rules 241 place count 111 transition count 284
Iterating global reduction 2 with 4 rules applied. Total rules applied 245 place count 111 transition count 284
Discarding 4 places :
Symmetric choice reduction at 2 with 4 rule applications. Total rules 249 place count 107 transition count 276
Iterating global reduction 2 with 4 rules applied. Total rules applied 253 place count 107 transition count 276
Drop transitions (Redundant composition of simpler transitions.) removed 8 transitions
Redundant transition composition rules discarded 8 transitions
Iterating global reduction 2 with 8 rules applied. Total rules applied 261 place count 107 transition count 268
Applied a total of 261 rules in 200 ms. Remains 107 /222 variables (removed 115) and now considering 268/648 (removed 380) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 213 ms. Remains : 107/222 places, 268/648 transitions.
[2025-06-01 16:31:28] [INFO ] Flow matrix only has 171 transitions (discarded 97 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {30=1, 85=1, 136=1, 168=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 2 ms.
This minimized invariant on transitions {33=1, 88=1, 139=1, 164=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 180 ms. (steps per millisecond=55 ) properties (out of 9) seen :[6, 4, 4, 2, 8, 5, 11, 2, 5]
Current structural bounds on expressions (after cover walk) : Max Seen:[64, 4, 4, 3, 64, 5, 54, 2, 5] Max Struct:[+inf, +inf, +inf, 64, +inf, +inf, 64, +inf, +inf]
[2025-06-01 16:31:28] [INFO ] Flow matrix only has 171 transitions (discarded 97 similar events)
// Phase 1: matrix 171 rows 107 cols
[2025-06-01 16:31:28] [INFO ] Computed 3 invariants in 7 ms
Current structural bounds on expressions (after invariants) : Max Seen:[64, 4, 4, 3, 64, 5, 54, 2, 5] Max Struct:[+inf, +inf, +inf, 64, +inf, +inf, 64, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 1681 ms. (594 steps per ms)
BEST_FIRST walk for 9000008 steps (18 resets) in 13249 ms. (679 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[64, 143, 54, 62, 64, 141, 54, 62, 155] Max Struct:[+inf, +inf, +inf, 64, +inf, +inf, 64, +inf, +inf]
[2025-06-01 16:31:43] [INFO ] Flow matrix only has 171 transitions (discarded 97 similar events)
[2025-06-01 16:31:43] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:31:43] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 16:31:43] [INFO ] [Real]Absence check using state equation in 66 ms returned sat
[2025-06-01 16:31:43] [INFO ] State equation strengthened by 30 read => feed constraints.
[2025-06-01 16:31:43] [INFO ] [Real]Added 30 Read/Feed constraints in 11 ms returned sat
[2025-06-01 16:31:43] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:31:43] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 16:31:43] [INFO ] [Nat]Absence check using state equation in 59 ms returned sat
[2025-06-01 16:31:43] [INFO ] [Nat]Added 30 Read/Feed constraints in 14 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:31:43] [INFO ] Deduced a trap composed of 16 places in 117 ms of which 10 ms to minimize.
[2025-06-01 16:31:43] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 137 ms
[2025-06-01 16:31:43] [INFO ] Computed and/alt/rep : 68/367/64 causal constraints (skipped 105 transitions) in 13 ms.
[2025-06-01 16:31:44] [INFO ] Added : 4 causal constraints over 1 iterations in 50 ms. Result :sat
Minimization took 40 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:31:44] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 16:31:44] [INFO ] [Real]Absence check using state equation in 68 ms returned sat
[2025-06-01 16:31:44] [INFO ] [Real]Added 30 Read/Feed constraints in 8 ms returned sat
[2025-06-01 16:31:44] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:31:44] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 16:31:44] [INFO ] [Nat]Absence check using state equation in 68 ms returned sat
[2025-06-01 16:31:44] [INFO ] [Nat]Added 30 Read/Feed constraints in 7 ms returned sat
[2025-06-01 16:31:44] [INFO ] Computed and/alt/rep : 68/367/64 causal constraints (skipped 105 transitions) in 16 ms.
[2025-06-01 16:31:44] [INFO ] Added : 33 causal constraints over 10 iterations in 187 ms. Result :sat
Minimization took 52 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:31:44] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 16:31:44] [INFO ] [Real]Absence check using state equation in 69 ms returned sat
[2025-06-01 16:31:44] [INFO ] [Real]Added 30 Read/Feed constraints in 9 ms returned sat
[2025-06-01 16:31:44] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:31:44] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 16:31:44] [INFO ] [Nat]Absence check using state equation in 89 ms returned sat
[2025-06-01 16:31:44] [INFO ] [Nat]Added 30 Read/Feed constraints in 11 ms returned sat
[2025-06-01 16:31:44] [INFO ] Computed and/alt/rep : 68/367/64 causal constraints (skipped 105 transitions) in 26 ms.
[2025-06-01 16:31:45] [INFO ] Added : 25 causal constraints over 7 iterations in 194 ms. Result :sat
Minimization took 68 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:31:45] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 16:31:45] [INFO ] [Real]Absence check using state equation in 96 ms returned sat
[2025-06-01 16:31:45] [INFO ] [Real]Added 30 Read/Feed constraints in 11 ms returned sat
[2025-06-01 16:31:45] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:31:45] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 16:31:45] [INFO ] [Nat]Absence check using state equation in 97 ms returned sat
[2025-06-01 16:31:45] [INFO ] [Nat]Added 30 Read/Feed constraints in 12 ms returned sat
[2025-06-01 16:31:45] [INFO ] Computed and/alt/rep : 68/367/64 causal constraints (skipped 105 transitions) in 23 ms.
[2025-06-01 16:31:45] [INFO ] Added : 1 causal constraints over 1 iterations in 69 ms. Result :sat
Minimization took 57 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:31:45] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 16:31:45] [INFO ] [Real]Absence check using state equation in 95 ms returned sat
[2025-06-01 16:31:45] [INFO ] [Real]Added 30 Read/Feed constraints in 14 ms returned sat
[2025-06-01 16:31:45] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:31:45] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2025-06-01 16:31:46] [INFO ] [Nat]Absence check using state equation in 97 ms returned sat
[2025-06-01 16:31:46] [INFO ] [Nat]Added 30 Read/Feed constraints in 17 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:31:46] [INFO ] Deduced a trap composed of 16 places in 163 ms of which 14 ms to minimize.
[2025-06-01 16:31:46] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 188 ms
[2025-06-01 16:31:46] [INFO ] Computed and/alt/rep : 68/367/64 causal constraints (skipped 105 transitions) in 22 ms.
[2025-06-01 16:31:46] [INFO ] Added : 9 causal constraints over 2 iterations in 94 ms. Result :sat
Minimization took 58 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:31:46] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 16:31:46] [INFO ] [Real]Absence check using state equation in 95 ms returned sat
[2025-06-01 16:31:46] [INFO ] [Real]Added 30 Read/Feed constraints in 11 ms returned sat
[2025-06-01 16:31:46] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:31:46] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 16:31:46] [INFO ] [Nat]Absence check using state equation in 106 ms returned sat
[2025-06-01 16:31:46] [INFO ] [Nat]Added 30 Read/Feed constraints in 11 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:31:46] [INFO ] Deduced a trap composed of 16 places in 166 ms of which 13 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:31:47] [INFO ] Deduced a trap composed of 16 places in 155 ms of which 16 ms to minimize.
[2025-06-01 16:31:47] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 358 ms
[2025-06-01 16:31:47] [INFO ] Computed and/alt/rep : 68/367/64 causal constraints (skipped 105 transitions) in 22 ms.
[2025-06-01 16:31:47] [INFO ] Added : 18 causal constraints over 5 iterations in 151 ms. Result :sat
Minimization took 69 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:31:47] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 16:31:47] [INFO ] [Real]Absence check using state equation in 95 ms returned sat
[2025-06-01 16:31:47] [INFO ] [Real]Added 30 Read/Feed constraints in 11 ms returned sat
[2025-06-01 16:31:47] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:31:47] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 16:31:47] [INFO ] [Nat]Absence check using state equation in 96 ms returned sat
[2025-06-01 16:31:47] [INFO ] [Nat]Added 30 Read/Feed constraints in 13 ms returned sat
[2025-06-01 16:31:47] [INFO ] Computed and/alt/rep : 68/367/64 causal constraints (skipped 105 transitions) in 23 ms.
[2025-06-01 16:31:47] [INFO ] Added : 4 causal constraints over 1 iterations in 71 ms. Result :sat
Minimization took 91 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:31:47] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 16:31:48] [INFO ] [Real]Absence check using state equation in 98 ms returned sat
[2025-06-01 16:31:48] [INFO ] [Real]Added 30 Read/Feed constraints in 11 ms returned sat
[2025-06-01 16:31:48] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:31:48] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 16:31:48] [INFO ] [Nat]Absence check using state equation in 92 ms returned sat
[2025-06-01 16:31:48] [INFO ] [Nat]Added 30 Read/Feed constraints in 10 ms returned sat
[2025-06-01 16:31:48] [INFO ] Computed and/alt/rep : 68/367/64 causal constraints (skipped 105 transitions) in 21 ms.
[2025-06-01 16:31:48] [INFO ] Added : 31 causal constraints over 9 iterations in 252 ms. Result :sat
Minimization took 74 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:31:48] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2025-06-01 16:31:48] [INFO ] [Real]Absence check using state equation in 97 ms returned sat
[2025-06-01 16:31:48] [INFO ] [Real]Added 30 Read/Feed constraints in 13 ms returned sat
[2025-06-01 16:31:48] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:31:48] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 16:31:48] [INFO ] [Nat]Absence check using state equation in 97 ms returned sat
[2025-06-01 16:31:48] [INFO ] [Nat]Added 30 Read/Feed constraints in 13 ms returned sat
[2025-06-01 16:31:48] [INFO ] Computed and/alt/rep : 68/367/64 causal constraints (skipped 105 transitions) in 23 ms.
[2025-06-01 16:31:49] [INFO ] Added : 17 causal constraints over 5 iterations in 156 ms. Result :sat
Minimization took 66 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[64, 143, 54, 62, 64, 141, 54, 62, 155] Max Struct:[+inf, +inf, +inf, 64, +inf, +inf, 64, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[64, 143, 54, 62, 64, 141, 54, 62, 155] Max Struct:[+inf, +inf, +inf, 64, +inf, +inf, 64, +inf, +inf]
Support contains 9 out of 107 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 107/107 places, 268/268 transitions.
Applied a total of 0 rules in 12 ms. Remains 107 /107 variables (removed 0) and now considering 268/268 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 12 ms. Remains : 107/107 places, 268/268 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 107/107 places, 268/268 transitions.
Applied a total of 0 rules in 21 ms. Remains 107 /107 variables (removed 0) and now considering 268/268 (removed 0) transitions.
[2025-06-01 16:31:51] [INFO ] Flow matrix only has 171 transitions (discarded 97 similar events)
[2025-06-01 16:31:51] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-01 16:31:51] [INFO ] Implicit Places using invariants in 172 ms returned []
[2025-06-01 16:31:51] [INFO ] Flow matrix only has 171 transitions (discarded 97 similar events)
[2025-06-01 16:31:51] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-01 16:31:51] [INFO ] State equation strengthened by 30 read => feed constraints.
[2025-06-01 16:31:51] [INFO ] Implicit Places using invariants and state equation in 356 ms returned []
Implicit Place search using SMT with State Equation took 531 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-01 16:31:51] [INFO ] Redundant transitions in 26 ms returned []
Running 266 sub problems to find dead transitions.
[2025-06-01 16:31:51] [INFO ] Flow matrix only has 171 transitions (discarded 97 similar events)
[2025-06-01 16:31:51] [INFO ] Invariant cache hit.
[2025-06-01 16:31:51] [INFO ] State equation strengthened by 30 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/107 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 266 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/107 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 266 unsolved
At refinement iteration 2 (OVERLAPS) 171/278 variables, 107/110 constraints. Problems are: Problem set: 0 solved, 266 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/278 variables, 30/140 constraints. Problems are: Problem set: 0 solved, 266 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/278 variables, 0/140 constraints. Problems are: Problem set: 0 solved, 266 unsolved
At refinement iteration 5 (OVERLAPS) 0/278 variables, 0/140 constraints. Problems are: Problem set: 0 solved, 266 unsolved
No progress, stopping.
After SMT solving in domain Real declared 278/278 variables, and 140 constraints, problems are : Problem set: 0 solved, 266 unsolved in 8524 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 107/107 constraints, ReadFeed: 30/30 constraints, PredecessorRefiner: 266/266 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 266 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/107 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 266 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/107 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 266 unsolved
At refinement iteration 2 (OVERLAPS) 171/278 variables, 107/110 constraints. Problems are: Problem set: 0 solved, 266 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/278 variables, 30/140 constraints. Problems are: Problem set: 0 solved, 266 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/278 variables, 266/406 constraints. Problems are: Problem set: 0 solved, 266 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/278 variables, 0/406 constraints. Problems are: Problem set: 0 solved, 266 unsolved
At refinement iteration 6 (OVERLAPS) 0/278 variables, 0/406 constraints. Problems are: Problem set: 0 solved, 266 unsolved
No progress, stopping.
After SMT solving in domain Int declared 278/278 variables, and 406 constraints, problems are : Problem set: 0 solved, 266 unsolved in 28531 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 107/107 constraints, ReadFeed: 30/30 constraints, PredecessorRefiner: 266/266 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 37462ms problems are : Problem set: 0 solved, 266 unsolved
Search for dead transitions found 0 dead transitions in 37483ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 38093 ms. Remains : 107/107 places, 268/268 transitions.
[2025-06-01 16:32:29] [INFO ] Flow matrix only has 171 transitions (discarded 97 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {30=1, 85=1, 136=1, 168=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {33=1, 88=1, 139=1, 164=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 203 ms. (steps per millisecond=49 ) properties (out of 9) seen :[9, 2, 1, 2, 11, 4, 8, 3, 6]
Current structural bounds on expressions (after cover walk) : Max Seen:[64, 143, 54, 62, 64, 141, 54, 62, 155] Max Struct:[+inf, +inf, +inf, 64, +inf, +inf, 64, +inf, +inf]
[2025-06-01 16:32:29] [INFO ] Flow matrix only has 171 transitions (discarded 97 similar events)
[2025-06-01 16:32:29] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[64, 143, 54, 62, 64, 141, 54, 62, 155] Max Struct:[+inf, +inf, +inf, 64, +inf, +inf, 64, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 1524 ms. (655 steps per ms)
FORMULA FunctionPointer-PT-b064-UpperBounds-12 64 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 8000008 steps (16 resets) in 9900 ms. (808 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[80, 143, 60, 62, 78, 141, 62, 158] Max Struct:[+inf, +inf, +inf, 64, +inf, +inf, +inf, +inf]
[2025-06-01 16:32:41] [INFO ] Flow matrix only has 171 transitions (discarded 97 similar events)
[2025-06-01 16:32:41] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:32:41] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 16:32:41] [INFO ] [Real]Absence check using state equation in 87 ms returned sat
[2025-06-01 16:32:41] [INFO ] State equation strengthened by 30 read => feed constraints.
[2025-06-01 16:32:41] [INFO ] [Real]Added 30 Read/Feed constraints in 13 ms returned sat
[2025-06-01 16:32:41] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:32:41] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 16:32:41] [INFO ] [Nat]Absence check using state equation in 98 ms returned sat
[2025-06-01 16:32:41] [INFO ] [Nat]Added 30 Read/Feed constraints in 17 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:32:41] [INFO ] Deduced a trap composed of 16 places in 167 ms of which 14 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:32:41] [INFO ] Deduced a trap composed of 16 places in 158 ms of which 16 ms to minimize.
[2025-06-01 16:32:41] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 367 ms
[2025-06-01 16:32:41] [INFO ] Computed and/alt/rep : 68/367/64 causal constraints (skipped 105 transitions) in 18 ms.
[2025-06-01 16:32:41] [INFO ] Added : 5 causal constraints over 2 iterations in 82 ms. Result :sat
Minimization took 57 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:32:42] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 16:32:42] [INFO ] [Real]Absence check using state equation in 97 ms returned sat
[2025-06-01 16:32:42] [INFO ] [Real]Added 30 Read/Feed constraints in 12 ms returned sat
[2025-06-01 16:32:42] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:32:42] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 16:32:42] [INFO ] [Nat]Absence check using state equation in 98 ms returned sat
[2025-06-01 16:32:42] [INFO ] [Nat]Added 30 Read/Feed constraints in 11 ms returned sat
[2025-06-01 16:32:42] [INFO ] Computed and/alt/rep : 68/367/64 causal constraints (skipped 105 transitions) in 23 ms.
[2025-06-01 16:32:42] [INFO ] Added : 33 causal constraints over 10 iterations in 260 ms. Result :sat
Minimization took 90 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:32:42] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 16:32:42] [INFO ] [Real]Absence check using state equation in 96 ms returned sat
[2025-06-01 16:32:42] [INFO ] [Real]Added 30 Read/Feed constraints in 11 ms returned sat
[2025-06-01 16:32:42] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:32:43] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 16:32:43] [INFO ] [Nat]Absence check using state equation in 98 ms returned sat
[2025-06-01 16:32:43] [INFO ] [Nat]Added 30 Read/Feed constraints in 10 ms returned sat
[2025-06-01 16:32:43] [INFO ] Computed and/alt/rep : 68/367/64 causal constraints (skipped 105 transitions) in 22 ms.
[2025-06-01 16:32:43] [INFO ] Added : 25 causal constraints over 7 iterations in 185 ms. Result :sat
Minimization took 68 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:32:43] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 16:32:43] [INFO ] [Real]Absence check using state equation in 98 ms returned sat
[2025-06-01 16:32:43] [INFO ] [Real]Added 30 Read/Feed constraints in 9 ms returned sat
[2025-06-01 16:32:43] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:32:43] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 16:32:43] [INFO ] [Nat]Absence check using state equation in 93 ms returned sat
[2025-06-01 16:32:43] [INFO ] [Nat]Added 30 Read/Feed constraints in 13 ms returned sat
[2025-06-01 16:32:43] [INFO ] Computed and/alt/rep : 68/367/64 causal constraints (skipped 105 transitions) in 22 ms.
[2025-06-01 16:32:43] [INFO ] Added : 1 causal constraints over 1 iterations in 65 ms. Result :sat
Minimization took 56 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:32:43] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 16:32:44] [INFO ] [Real]Absence check using state equation in 91 ms returned sat
[2025-06-01 16:32:44] [INFO ] [Real]Added 30 Read/Feed constraints in 13 ms returned sat
[2025-06-01 16:32:44] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:32:44] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 16:32:44] [INFO ] [Nat]Absence check using state equation in 93 ms returned sat
[2025-06-01 16:32:44] [INFO ] [Nat]Added 30 Read/Feed constraints in 13 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:32:44] [INFO ] Deduced a trap composed of 16 places in 136 ms of which 13 ms to minimize.
[2025-06-01 16:32:44] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 158 ms
[2025-06-01 16:32:44] [INFO ] Computed and/alt/rep : 68/367/64 causal constraints (skipped 105 transitions) in 22 ms.
[2025-06-01 16:32:44] [INFO ] Added : 9 causal constraints over 2 iterations in 93 ms. Result :sat
Minimization took 60 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:32:44] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 16:32:44] [INFO ] [Real]Absence check using state equation in 94 ms returned sat
[2025-06-01 16:32:44] [INFO ] [Real]Added 30 Read/Feed constraints in 12 ms returned sat
[2025-06-01 16:32:44] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:32:44] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 16:32:44] [INFO ] [Nat]Absence check using state equation in 95 ms returned sat
[2025-06-01 16:32:44] [INFO ] [Nat]Added 30 Read/Feed constraints in 11 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:32:45] [INFO ] Deduced a trap composed of 16 places in 136 ms of which 13 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:32:45] [INFO ] Deduced a trap composed of 16 places in 153 ms of which 15 ms to minimize.
[2025-06-01 16:32:45] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 328 ms
[2025-06-01 16:32:45] [INFO ] Computed and/alt/rep : 68/367/64 causal constraints (skipped 105 transitions) in 29 ms.
[2025-06-01 16:32:45] [INFO ] Added : 18 causal constraints over 5 iterations in 158 ms. Result :sat
Minimization took 70 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:32:45] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 16:32:45] [INFO ] [Real]Absence check using state equation in 92 ms returned sat
[2025-06-01 16:32:45] [INFO ] [Real]Added 30 Read/Feed constraints in 10 ms returned sat
[2025-06-01 16:32:45] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:32:45] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 16:32:45] [INFO ] [Nat]Absence check using state equation in 98 ms returned sat
[2025-06-01 16:32:45] [INFO ] [Nat]Added 30 Read/Feed constraints in 12 ms returned sat
[2025-06-01 16:32:45] [INFO ] Computed and/alt/rep : 68/367/64 causal constraints (skipped 105 transitions) in 22 ms.
[2025-06-01 16:32:46] [INFO ] Added : 31 causal constraints over 9 iterations in 231 ms. Result :sat
Minimization took 72 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:32:46] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 16:32:46] [INFO ] [Real]Absence check using state equation in 95 ms returned sat
[2025-06-01 16:32:46] [INFO ] [Real]Added 30 Read/Feed constraints in 13 ms returned sat
[2025-06-01 16:32:46] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:32:46] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 16:32:46] [INFO ] [Nat]Absence check using state equation in 99 ms returned sat
[2025-06-01 16:32:46] [INFO ] [Nat]Added 30 Read/Feed constraints in 13 ms returned sat
[2025-06-01 16:32:46] [INFO ] Computed and/alt/rep : 68/367/64 causal constraints (skipped 105 transitions) in 22 ms.
[2025-06-01 16:32:46] [INFO ] Added : 17 causal constraints over 5 iterations in 151 ms. Result :sat
Minimization took 66 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[80, 143, 60, 62, 78, 141, 62, 158] Max Struct:[+inf, +inf, +inf, 64, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[80, 143, 60, 62, 78, 141, 62, 158] Max Struct:[+inf, +inf, +inf, 64, +inf, +inf, +inf, +inf]
Support contains 8 out of 107 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 107/107 places, 268/268 transitions.
Applied a total of 0 rules in 11 ms. Remains 107 /107 variables (removed 0) and now considering 268/268 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 11 ms. Remains : 107/107 places, 268/268 transitions.
[2025-06-01 16:32:48] [INFO ] Flow matrix only has 171 transitions (discarded 97 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {30=1, 85=1, 136=1, 168=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {33=1, 88=1, 139=1, 164=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 93 ms. (steps per millisecond=107 ) properties (out of 8) seen :[2147483647, 3, 2, 2, 11, 6, 2, 4]
Current structural bounds on expressions (after cover walk) : Max Seen:[+inf, 143, 60, 62, 78, 141, 62, 158] Max Struct:[+inf, +inf, +inf, 64, +inf, +inf, +inf, +inf]
[2025-06-01 16:32:49] [INFO ] Flow matrix only has 171 transitions (discarded 97 similar events)
[2025-06-01 16:32:49] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[+inf, 143, 60, 62, 78, 141, 62, 158] Max Struct:[+inf, +inf, +inf, 64, +inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 1739 ms. (574 steps per ms)
FORMULA FunctionPointer-PT-b064-UpperBounds-00 +inf TECHNIQUES TOPOLOGICAL RANDOM_WALK
BEST_FIRST walk for 7000007 steps (14 resets) in 8518 ms. (821 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[157, 60, 63, 78, 148, 62, 158] Max Struct:[+inf, +inf, 64, +inf, +inf, +inf, +inf]
[2025-06-01 16:32:59] [INFO ] Flow matrix only has 171 transitions (discarded 97 similar events)
[2025-06-01 16:32:59] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:32:59] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 16:32:59] [INFO ] [Real]Absence check using state equation in 83 ms returned sat
[2025-06-01 16:32:59] [INFO ] State equation strengthened by 30 read => feed constraints.
[2025-06-01 16:32:59] [INFO ] [Real]Added 30 Read/Feed constraints in 11 ms returned sat
[2025-06-01 16:32:59] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:32:59] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 16:32:59] [INFO ] [Nat]Absence check using state equation in 63 ms returned sat
[2025-06-01 16:32:59] [INFO ] [Nat]Added 30 Read/Feed constraints in 7 ms returned sat
[2025-06-01 16:32:59] [INFO ] Computed and/alt/rep : 68/367/64 causal constraints (skipped 105 transitions) in 14 ms.
[2025-06-01 16:32:59] [INFO ] Added : 33 causal constraints over 10 iterations in 199 ms. Result :sat
Minimization took 90 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:33:00] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 16:33:00] [INFO ] [Real]Absence check using state equation in 99 ms returned sat
[2025-06-01 16:33:00] [INFO ] [Real]Added 30 Read/Feed constraints in 10 ms returned sat
[2025-06-01 16:33:00] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:33:00] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 16:33:00] [INFO ] [Nat]Absence check using state equation in 103 ms returned sat
[2025-06-01 16:33:00] [INFO ] [Nat]Added 30 Read/Feed constraints in 12 ms returned sat
[2025-06-01 16:33:00] [INFO ] Computed and/alt/rep : 68/367/64 causal constraints (skipped 105 transitions) in 22 ms.
[2025-06-01 16:33:00] [INFO ] Added : 25 causal constraints over 7 iterations in 195 ms. Result :sat
Minimization took 74 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:33:00] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 16:33:00] [INFO ] [Real]Absence check using state equation in 101 ms returned sat
[2025-06-01 16:33:00] [INFO ] [Real]Added 30 Read/Feed constraints in 15 ms returned sat
[2025-06-01 16:33:00] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:33:00] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 16:33:00] [INFO ] [Nat]Absence check using state equation in 92 ms returned sat
[2025-06-01 16:33:00] [INFO ] [Nat]Added 30 Read/Feed constraints in 13 ms returned sat
[2025-06-01 16:33:01] [INFO ] Computed and/alt/rep : 68/367/64 causal constraints (skipped 105 transitions) in 20 ms.
[2025-06-01 16:33:01] [INFO ] Added : 1 causal constraints over 1 iterations in 62 ms. Result :sat
Minimization took 55 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:33:01] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 16:33:01] [INFO ] [Real]Absence check using state equation in 93 ms returned sat
[2025-06-01 16:33:01] [INFO ] [Real]Added 30 Read/Feed constraints in 10 ms returned sat
[2025-06-01 16:33:01] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:33:01] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 16:33:01] [INFO ] [Nat]Absence check using state equation in 79 ms returned sat
[2025-06-01 16:33:01] [INFO ] [Nat]Added 30 Read/Feed constraints in 12 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:33:01] [INFO ] Deduced a trap composed of 16 places in 120 ms of which 14 ms to minimize.
[2025-06-01 16:33:01] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 139 ms
[2025-06-01 16:33:01] [INFO ] Computed and/alt/rep : 68/367/64 causal constraints (skipped 105 transitions) in 15 ms.
[2025-06-01 16:33:01] [INFO ] Added : 9 causal constraints over 2 iterations in 75 ms. Result :sat
Minimization took 60 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:33:01] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 16:33:01] [INFO ] [Real]Absence check using state equation in 79 ms returned sat
[2025-06-01 16:33:01] [INFO ] [Real]Added 30 Read/Feed constraints in 9 ms returned sat
[2025-06-01 16:33:01] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:33:01] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 16:33:01] [INFO ] [Nat]Absence check using state equation in 59 ms returned sat
[2025-06-01 16:33:01] [INFO ] [Nat]Added 30 Read/Feed constraints in 7 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:33:02] [INFO ] Deduced a trap composed of 16 places in 120 ms of which 13 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:33:02] [INFO ] Deduced a trap composed of 16 places in 150 ms of which 17 ms to minimize.
[2025-06-01 16:33:02] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 289 ms
[2025-06-01 16:33:02] [INFO ] Computed and/alt/rep : 68/367/64 causal constraints (skipped 105 transitions) in 10 ms.
[2025-06-01 16:33:02] [INFO ] Added : 18 causal constraints over 5 iterations in 86 ms. Result :sat
Minimization took 42 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:33:02] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 16:33:02] [INFO ] [Real]Absence check using state equation in 82 ms returned sat
[2025-06-01 16:33:02] [INFO ] [Real]Added 30 Read/Feed constraints in 9 ms returned sat
[2025-06-01 16:33:02] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:33:02] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 16:33:02] [INFO ] [Nat]Absence check using state equation in 59 ms returned sat
[2025-06-01 16:33:02] [INFO ] [Nat]Added 30 Read/Feed constraints in 7 ms returned sat
[2025-06-01 16:33:02] [INFO ] Computed and/alt/rep : 68/367/64 causal constraints (skipped 105 transitions) in 14 ms.
[2025-06-01 16:33:02] [INFO ] Added : 31 causal constraints over 9 iterations in 146 ms. Result :sat
Minimization took 51 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:33:02] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 16:33:02] [INFO ] [Real]Absence check using state equation in 68 ms returned sat
[2025-06-01 16:33:03] [INFO ] [Real]Added 30 Read/Feed constraints in 10 ms returned sat
[2025-06-01 16:33:03] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:33:03] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 16:33:03] [INFO ] [Nat]Absence check using state equation in 86 ms returned sat
[2025-06-01 16:33:03] [INFO ] [Nat]Added 30 Read/Feed constraints in 11 ms returned sat
[2025-06-01 16:33:03] [INFO ] Computed and/alt/rep : 68/367/64 causal constraints (skipped 105 transitions) in 18 ms.
[2025-06-01 16:33:03] [INFO ] Added : 17 causal constraints over 5 iterations in 135 ms. Result :sat
Minimization took 66 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[157, 60, 63, 78, 148, 62, 158] Max Struct:[+inf, +inf, 64, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[157, 60, 63, 78, 148, 62, 158] Max Struct:[+inf, +inf, 64, +inf, +inf, +inf, +inf]
Support contains 7 out of 107 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 107/107 places, 268/268 transitions.
Graph (complete) has 448 edges and 107 vertex of which 104 are kept as prefixes of interest. Removing 3 places using SCC suffix rule.1 ms
Discarding 3 places :
Also discarding 0 output transitions
Drop transitions (Empty/Sink Transition effects.) removed 5 transitions
Reduce isomorphic transitions removed 5 transitions.
Iterating post reduction 0 with 5 rules applied. Total rules applied 6 place count 104 transition count 263
Applied a total of 6 rules in 13 ms. Remains 104 /107 variables (removed 3) and now considering 263/268 (removed 5) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 13 ms. Remains : 104/107 places, 263/268 transitions.
[2025-06-01 16:33:05] [INFO ] Flow matrix only has 166 transitions (discarded 97 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {30=1, 85=1, 119=1, 158=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 3 ms.
This minimized invariant on transitions {33=1, 88=1, 122=1, 158=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 7) seen :[5, 2, 3, 9, 11, 2, 4]
Current structural bounds on expressions (after cover walk) : Max Seen:[157, 60, 63, 78, 148, 62, 158] Max Struct:[+inf, +inf, 64, +inf, +inf, +inf, +inf]
[2025-06-01 16:33:05] [INFO ] Flow matrix only has 166 transitions (discarded 97 similar events)
// Phase 1: matrix 166 rows 104 cols
[2025-06-01 16:33:05] [INFO ] Computed 3 invariants in 2 ms
Current structural bounds on expressions (after invariants) : Max Seen:[157, 60, 63, 78, 148, 62, 158] Max Struct:[+inf, +inf, 64, +inf, +inf, +inf, +inf]
RANDOM walk for 1000002 steps (2 resets) in 1426 ms. (700 steps per ms)
BEST_FIRST walk for 7000007 steps (14 resets) in 7986 ms. (876 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[157, 66, 63, 78, 175, 74, 179] Max Struct:[+inf, +inf, 64, +inf, +inf, +inf, +inf]
[2025-06-01 16:33:14] [INFO ] Flow matrix only has 166 transitions (discarded 97 similar events)
[2025-06-01 16:33:14] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:33:15] [INFO ] [Real]Absence check using 3 positive place invariants in 9 ms returned sat
[2025-06-01 16:33:15] [INFO ] [Real]Absence check using state equation in 55 ms returned sat
[2025-06-01 16:33:15] [INFO ] State equation strengthened by 27 read => feed constraints.
[2025-06-01 16:33:15] [INFO ] [Real]Added 27 Read/Feed constraints in 7 ms returned sat
[2025-06-01 16:33:15] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:33:15] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 16:33:15] [INFO ] [Nat]Absence check using state equation in 96 ms returned sat
[2025-06-01 16:33:15] [INFO ] [Nat]Added 27 Read/Feed constraints in 10 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:33:15] [INFO ] Deduced a trap composed of 16 places in 130 ms of which 13 ms to minimize.
[2025-06-01 16:33:15] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 151 ms
[2025-06-01 16:33:15] [INFO ] Computed and/alt/rep : 67/333/63 causal constraints (skipped 101 transitions) in 21 ms.
[2025-06-01 16:33:15] [INFO ] Added : 30 causal constraints over 7 iterations in 193 ms. Result :sat
Minimization took 78 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:33:15] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 16:33:15] [INFO ] [Real]Absence check using state equation in 92 ms returned sat
[2025-06-01 16:33:15] [INFO ] [Real]Added 27 Read/Feed constraints in 10 ms returned sat
[2025-06-01 16:33:15] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:33:15] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 16:33:16] [INFO ] [Nat]Absence check using state equation in 95 ms returned sat
[2025-06-01 16:33:16] [INFO ] [Nat]Added 27 Read/Feed constraints in 12 ms returned sat
[2025-06-01 16:33:16] [INFO ] Computed and/alt/rep : 67/333/63 causal constraints (skipped 101 transitions) in 22 ms.
[2025-06-01 16:33:16] [INFO ] Added : 21 causal constraints over 6 iterations in 169 ms. Result :sat
Minimization took 76 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:33:16] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 16:33:16] [INFO ] [Real]Absence check using state equation in 85 ms returned sat
[2025-06-01 16:33:16] [INFO ] [Real]Added 27 Read/Feed constraints in 13 ms returned sat
[2025-06-01 16:33:16] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:33:16] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 16:33:16] [INFO ] [Nat]Absence check using state equation in 91 ms returned sat
[2025-06-01 16:33:16] [INFO ] [Nat]Added 27 Read/Feed constraints in 14 ms returned sat
[2025-06-01 16:33:16] [INFO ] Computed and/alt/rep : 67/333/63 causal constraints (skipped 101 transitions) in 22 ms.
[2025-06-01 16:33:16] [INFO ] Added : 1 causal constraints over 1 iterations in 64 ms. Result :sat
Minimization took 62 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:33:16] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 16:33:16] [INFO ] [Real]Absence check using state equation in 92 ms returned sat
[2025-06-01 16:33:16] [INFO ] [Real]Added 27 Read/Feed constraints in 12 ms returned sat
[2025-06-01 16:33:16] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:33:17] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 16:33:17] [INFO ] [Nat]Absence check using state equation in 98 ms returned sat
[2025-06-01 16:33:17] [INFO ] [Nat]Added 27 Read/Feed constraints in 14 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:33:17] [INFO ] Deduced a trap composed of 16 places in 131 ms of which 14 ms to minimize.
[2025-06-01 16:33:17] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 152 ms
[2025-06-01 16:33:17] [INFO ] Computed and/alt/rep : 67/333/63 causal constraints (skipped 101 transitions) in 20 ms.
[2025-06-01 16:33:17] [INFO ] Added : 7 causal constraints over 2 iterations in 86 ms. Result :sat
Minimization took 62 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:33:17] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 16:33:17] [INFO ] [Real]Absence check using state equation in 93 ms returned sat
[2025-06-01 16:33:17] [INFO ] [Real]Added 27 Read/Feed constraints in 9 ms returned sat
[2025-06-01 16:33:17] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:33:17] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 16:33:17] [INFO ] [Nat]Absence check using state equation in 95 ms returned sat
[2025-06-01 16:33:17] [INFO ] [Nat]Added 27 Read/Feed constraints in 10 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:33:17] [INFO ] Deduced a trap composed of 16 places in 90 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:33:18] [INFO ] Deduced a trap composed of 16 places in 109 ms of which 9 ms to minimize.
[2025-06-01 16:33:18] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 225 ms
[2025-06-01 16:33:18] [INFO ] Computed and/alt/rep : 67/333/63 causal constraints (skipped 101 transitions) in 18 ms.
[2025-06-01 16:33:18] [INFO ] Added : 27 causal constraints over 8 iterations in 160 ms. Result :sat
Minimization took 52 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:33:18] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 16:33:18] [INFO ] [Real]Absence check using state equation in 77 ms returned sat
[2025-06-01 16:33:18] [INFO ] [Real]Added 27 Read/Feed constraints in 6 ms returned sat
[2025-06-01 16:33:18] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:33:18] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 16:33:18] [INFO ] [Nat]Absence check using state equation in 79 ms returned sat
[2025-06-01 16:33:18] [INFO ] [Nat]Added 27 Read/Feed constraints in 7 ms returned sat
[2025-06-01 16:33:18] [INFO ] Computed and/alt/rep : 67/333/63 causal constraints (skipped 101 transitions) in 19 ms.
[2025-06-01 16:33:18] [INFO ] Added : 18 causal constraints over 5 iterations in 115 ms. Result :sat
Minimization took 43 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:33:18] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 16:33:18] [INFO ] [Real]Absence check using state equation in 79 ms returned sat
[2025-06-01 16:33:18] [INFO ] [Real]Added 27 Read/Feed constraints in 10 ms returned sat
[2025-06-01 16:33:18] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:33:18] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 16:33:19] [INFO ] [Nat]Absence check using state equation in 107 ms returned sat
[2025-06-01 16:33:19] [INFO ] [Nat]Added 27 Read/Feed constraints in 13 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:33:19] [INFO ] Deduced a trap composed of 16 places in 112 ms of which 8 ms to minimize.
[2025-06-01 16:33:19] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 135 ms
[2025-06-01 16:33:19] [INFO ] Computed and/alt/rep : 67/333/63 causal constraints (skipped 101 transitions) in 19 ms.
[2025-06-01 16:33:19] [INFO ] Added : 10 causal constraints over 3 iterations in 106 ms. Result :sat
Minimization took 68 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[157, 66, 63, 78, 175, 74, 179] Max Struct:[+inf, +inf, 64, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[157, 66, 63, 78, 175, 74, 179] Max Struct:[+inf, +inf, 64, +inf, +inf, +inf, +inf]
Support contains 7 out of 104 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 104/104 places, 263/263 transitions.
Applied a total of 0 rules in 12 ms. Remains 104 /104 variables (removed 0) and now considering 263/263 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 12 ms. Remains : 104/104 places, 263/263 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 104/104 places, 263/263 transitions.
Applied a total of 0 rules in 9 ms. Remains 104 /104 variables (removed 0) and now considering 263/263 (removed 0) transitions.
[2025-06-01 16:33:21] [INFO ] Flow matrix only has 166 transitions (discarded 97 similar events)
[2025-06-01 16:33:21] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-01 16:33:21] [INFO ] Implicit Places using invariants in 150 ms returned []
[2025-06-01 16:33:21] [INFO ] Flow matrix only has 166 transitions (discarded 97 similar events)
[2025-06-01 16:33:21] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-01 16:33:21] [INFO ] State equation strengthened by 27 read => feed constraints.
[2025-06-01 16:33:22] [INFO ] Implicit Places using invariants and state equation in 440 ms returned []
Implicit Place search using SMT with State Equation took 593 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-01 16:33:22] [INFO ] Redundant transitions in 5 ms returned []
Running 261 sub problems to find dead transitions.
[2025-06-01 16:33:22] [INFO ] Flow matrix only has 166 transitions (discarded 97 similar events)
[2025-06-01 16:33:22] [INFO ] Invariant cache hit.
[2025-06-01 16:33:22] [INFO ] State equation strengthened by 27 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/104 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 261 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/104 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 261 unsolved
At refinement iteration 2 (OVERLAPS) 166/270 variables, 104/107 constraints. Problems are: Problem set: 0 solved, 261 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/270 variables, 27/134 constraints. Problems are: Problem set: 0 solved, 261 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/270 variables, 0/134 constraints. Problems are: Problem set: 0 solved, 261 unsolved
At refinement iteration 5 (OVERLAPS) 0/270 variables, 0/134 constraints. Problems are: Problem set: 0 solved, 261 unsolved
No progress, stopping.
After SMT solving in domain Real declared 270/270 variables, and 134 constraints, problems are : Problem set: 0 solved, 261 unsolved in 8323 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 104/104 constraints, ReadFeed: 27/27 constraints, PredecessorRefiner: 261/261 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 261 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/104 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 261 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/104 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 261 unsolved
At refinement iteration 2 (OVERLAPS) 166/270 variables, 104/107 constraints. Problems are: Problem set: 0 solved, 261 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/270 variables, 27/134 constraints. Problems are: Problem set: 0 solved, 261 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/270 variables, 261/395 constraints. Problems are: Problem set: 0 solved, 261 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:33:39] [INFO ] Deduced a trap along path composed of 3 places in 39 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:33:39] [INFO ] Deduced a trap along path composed of 3 places in 31 ms of which 2 ms to minimize.
At refinement iteration 5 (INCLUDED_ONLY) 0/270 variables, 2/397 constraints. Problems are: Problem set: 0 solved, 261 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/270 variables, 0/397 constraints. Problems are: Problem set: 0 solved, 261 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 270/270 variables, and 397 constraints, problems are : Problem set: 0 solved, 261 unsolved in 30040 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 104/104 constraints, ReadFeed: 27/27 constraints, PredecessorRefiner: 261/261 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 2/2 constraints]
After SMT, in 38490ms problems are : Problem set: 0 solved, 261 unsolved
Search for dead transitions found 0 dead transitions in 38494ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 39111 ms. Remains : 104/104 places, 263/263 transitions.
[2025-06-01 16:34:00] [INFO ] Flow matrix only has 166 transitions (discarded 97 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {30=1, 85=1, 119=1, 158=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {33=1, 88=1, 122=1, 158=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 90 ms. (steps per millisecond=111 ) properties (out of 7) seen :[3, 3, 4, 7, 6, 2, 7]
Current structural bounds on expressions (after cover walk) : Max Seen:[157, 66, 63, 78, 175, 74, 179] Max Struct:[+inf, +inf, 64, +inf, +inf, +inf, +inf]
[2025-06-01 16:34:00] [INFO ] Flow matrix only has 166 transitions (discarded 97 similar events)
[2025-06-01 16:34:00] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[157, 66, 63, 78, 175, 74, 179] Max Struct:[+inf, +inf, 64, +inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 1651 ms. (605 steps per ms)
BEST_FIRST walk for 7000006 steps (14 resets) in 8326 ms. (840 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[157, 85, 63, 83, 175, 74, 179] Max Struct:[+inf, +inf, 64, +inf, +inf, +inf, +inf]
[2025-06-01 16:34:10] [INFO ] Flow matrix only has 166 transitions (discarded 97 similar events)
[2025-06-01 16:34:10] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:34:10] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 16:34:11] [INFO ] [Real]Absence check using state equation in 75 ms returned sat
[2025-06-01 16:34:11] [INFO ] State equation strengthened by 27 read => feed constraints.
[2025-06-01 16:34:11] [INFO ] [Real]Added 27 Read/Feed constraints in 7 ms returned sat
[2025-06-01 16:34:11] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:34:11] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 16:34:11] [INFO ] [Nat]Absence check using state equation in 62 ms returned sat
[2025-06-01 16:34:11] [INFO ] [Nat]Added 27 Read/Feed constraints in 6 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:34:11] [INFO ] Deduced a trap composed of 16 places in 169 ms of which 14 ms to minimize.
[2025-06-01 16:34:11] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 189 ms
[2025-06-01 16:34:11] [INFO ] Computed and/alt/rep : 67/333/63 causal constraints (skipped 101 transitions) in 19 ms.
[2025-06-01 16:34:11] [INFO ] Added : 30 causal constraints over 7 iterations in 195 ms. Result :sat
Minimization took 78 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:34:11] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 16:34:11] [INFO ] [Real]Absence check using state equation in 93 ms returned sat
[2025-06-01 16:34:11] [INFO ] [Real]Added 27 Read/Feed constraints in 10 ms returned sat
[2025-06-01 16:34:11] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:34:11] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 16:34:11] [INFO ] [Nat]Absence check using state equation in 93 ms returned sat
[2025-06-01 16:34:11] [INFO ] [Nat]Added 27 Read/Feed constraints in 12 ms returned sat
[2025-06-01 16:34:12] [INFO ] Computed and/alt/rep : 67/333/63 causal constraints (skipped 101 transitions) in 23 ms.
[2025-06-01 16:34:12] [INFO ] Added : 21 causal constraints over 6 iterations in 163 ms. Result :sat
Minimization took 69 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:34:12] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 16:34:12] [INFO ] [Real]Absence check using state equation in 75 ms returned sat
[2025-06-01 16:34:12] [INFO ] [Real]Added 27 Read/Feed constraints in 10 ms returned sat
[2025-06-01 16:34:12] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:34:12] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 16:34:12] [INFO ] [Nat]Absence check using state equation in 74 ms returned sat
[2025-06-01 16:34:12] [INFO ] [Nat]Added 27 Read/Feed constraints in 9 ms returned sat
[2025-06-01 16:34:12] [INFO ] Computed and/alt/rep : 67/333/63 causal constraints (skipped 101 transitions) in 19 ms.
[2025-06-01 16:34:12] [INFO ] Added : 1 causal constraints over 1 iterations in 51 ms. Result :sat
Minimization took 39 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:34:12] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 16:34:12] [INFO ] [Real]Absence check using state equation in 75 ms returned sat
[2025-06-01 16:34:12] [INFO ] [Real]Added 27 Read/Feed constraints in 9 ms returned sat
[2025-06-01 16:34:12] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:34:12] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 16:34:12] [INFO ] [Nat]Absence check using state equation in 92 ms returned sat
[2025-06-01 16:34:12] [INFO ] [Nat]Added 27 Read/Feed constraints in 11 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:34:13] [INFO ] Deduced a trap composed of 16 places in 168 ms of which 14 ms to minimize.
[2025-06-01 16:34:13] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 189 ms
[2025-06-01 16:34:13] [INFO ] Computed and/alt/rep : 67/333/63 causal constraints (skipped 101 transitions) in 18 ms.
[2025-06-01 16:34:13] [INFO ] Added : 7 causal constraints over 2 iterations in 78 ms. Result :sat
Minimization took 61 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:34:13] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 16:34:13] [INFO ] [Real]Absence check using state equation in 93 ms returned sat
[2025-06-01 16:34:13] [INFO ] [Real]Added 27 Read/Feed constraints in 11 ms returned sat
[2025-06-01 16:34:13] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:34:13] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 16:34:13] [INFO ] [Nat]Absence check using state equation in 85 ms returned sat
[2025-06-01 16:34:13] [INFO ] [Nat]Added 27 Read/Feed constraints in 11 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:34:13] [INFO ] Deduced a trap composed of 16 places in 131 ms of which 12 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:34:13] [INFO ] Deduced a trap composed of 16 places in 132 ms of which 12 ms to minimize.
[2025-06-01 16:34:13] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 292 ms
[2025-06-01 16:34:13] [INFO ] Computed and/alt/rep : 67/333/63 causal constraints (skipped 101 transitions) in 19 ms.
[2025-06-01 16:34:14] [INFO ] Added : 27 causal constraints over 8 iterations in 182 ms. Result :sat
Minimization took 65 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:34:14] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 16:34:14] [INFO ] [Real]Absence check using state equation in 89 ms returned sat
[2025-06-01 16:34:14] [INFO ] [Real]Added 27 Read/Feed constraints in 7 ms returned sat
[2025-06-01 16:34:14] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:34:14] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 16:34:14] [INFO ] [Nat]Absence check using state equation in 83 ms returned sat
[2025-06-01 16:34:14] [INFO ] [Nat]Added 27 Read/Feed constraints in 8 ms returned sat
[2025-06-01 16:34:14] [INFO ] Computed and/alt/rep : 67/333/63 causal constraints (skipped 101 transitions) in 19 ms.
[2025-06-01 16:34:14] [INFO ] Added : 18 causal constraints over 5 iterations in 127 ms. Result :sat
Minimization took 68 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:34:14] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 16:34:14] [INFO ] [Real]Absence check using state equation in 76 ms returned sat
[2025-06-01 16:34:14] [INFO ] [Real]Added 27 Read/Feed constraints in 11 ms returned sat
[2025-06-01 16:34:14] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:34:14] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 16:34:14] [INFO ] [Nat]Absence check using state equation in 89 ms returned sat
[2025-06-01 16:34:14] [INFO ] [Nat]Added 27 Read/Feed constraints in 12 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:34:15] [INFO ] Deduced a trap composed of 16 places in 148 ms of which 13 ms to minimize.
[2025-06-01 16:34:15] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 168 ms
[2025-06-01 16:34:15] [INFO ] Computed and/alt/rep : 67/333/63 causal constraints (skipped 101 transitions) in 16 ms.
[2025-06-01 16:34:15] [INFO ] Added : 10 causal constraints over 3 iterations in 96 ms. Result :sat
Minimization took 67 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[157, 85, 63, 83, 175, 74, 179] Max Struct:[+inf, +inf, 64, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[157, 85, 63, 83, 175, 74, 179] Max Struct:[+inf, +inf, 64, +inf, +inf, +inf, +inf]
Support contains 7 out of 104 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 104/104 places, 263/263 transitions.
Applied a total of 0 rules in 8 ms. Remains 104 /104 variables (removed 0) and now considering 263/263 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 8 ms. Remains : 104/104 places, 263/263 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 104/104 places, 263/263 transitions.
Applied a total of 0 rules in 7 ms. Remains 104 /104 variables (removed 0) and now considering 263/263 (removed 0) transitions.
[2025-06-01 16:34:17] [INFO ] Flow matrix only has 166 transitions (discarded 97 similar events)
[2025-06-01 16:34:17] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-01 16:34:17] [INFO ] Implicit Places using invariants in 151 ms returned []
[2025-06-01 16:34:17] [INFO ] Flow matrix only has 166 transitions (discarded 97 similar events)
[2025-06-01 16:34:17] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-01 16:34:17] [INFO ] State equation strengthened by 27 read => feed constraints.
[2025-06-01 16:34:18] [INFO ] Implicit Places using invariants and state equation in 367 ms returned []
Implicit Place search using SMT with State Equation took 521 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-01 16:34:18] [INFO ] Redundant transitions in 4 ms returned []
Running 261 sub problems to find dead transitions.
[2025-06-01 16:34:18] [INFO ] Flow matrix only has 166 transitions (discarded 97 similar events)
[2025-06-01 16:34:18] [INFO ] Invariant cache hit.
[2025-06-01 16:34:18] [INFO ] State equation strengthened by 27 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/104 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 261 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/104 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 261 unsolved
At refinement iteration 2 (OVERLAPS) 166/270 variables, 104/107 constraints. Problems are: Problem set: 0 solved, 261 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/270 variables, 27/134 constraints. Problems are: Problem set: 0 solved, 261 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/270 variables, 0/134 constraints. Problems are: Problem set: 0 solved, 261 unsolved
At refinement iteration 5 (OVERLAPS) 0/270 variables, 0/134 constraints. Problems are: Problem set: 0 solved, 261 unsolved
No progress, stopping.
After SMT solving in domain Real declared 270/270 variables, and 134 constraints, problems are : Problem set: 0 solved, 261 unsolved in 8353 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 104/104 constraints, ReadFeed: 27/27 constraints, PredecessorRefiner: 261/261 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 261 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/104 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 261 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/104 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 261 unsolved
At refinement iteration 2 (OVERLAPS) 166/270 variables, 104/107 constraints. Problems are: Problem set: 0 solved, 261 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/270 variables, 27/134 constraints. Problems are: Problem set: 0 solved, 261 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/270 variables, 261/395 constraints. Problems are: Problem set: 0 solved, 261 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:34:35] [INFO ] Deduced a trap along path composed of 3 places in 26 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:34:35] [INFO ] Deduced a trap along path composed of 3 places in 26 ms of which 1 ms to minimize.
At refinement iteration 5 (INCLUDED_ONLY) 0/270 variables, 2/397 constraints. Problems are: Problem set: 0 solved, 261 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/270 variables, 0/397 constraints. Problems are: Problem set: 0 solved, 261 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 270/270 variables, and 397 constraints, problems are : Problem set: 0 solved, 261 unsolved in 30023 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 104/104 constraints, ReadFeed: 27/27 constraints, PredecessorRefiner: 261/261 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 2/2 constraints]
After SMT, in 38479ms problems are : Problem set: 0 solved, 261 unsolved
Search for dead transitions found 0 dead transitions in 38482ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 39020 ms. Remains : 104/104 places, 263/263 transitions.
[2025-06-01 16:34:56] [INFO ] Flow matrix only has 166 transitions (discarded 97 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {30=1, 85=1, 119=1, 158=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {33=1, 88=1, 122=1, 158=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 87 ms. (steps per millisecond=114 ) properties (out of 7) seen :[2, 2, 2, 8, 13, 2, 5]
Current structural bounds on expressions (after cover walk) : Max Seen:[157, 85, 63, 83, 175, 74, 179] Max Struct:[+inf, +inf, 64, +inf, +inf, +inf, +inf]
[2025-06-01 16:34:56] [INFO ] Flow matrix only has 166 transitions (discarded 97 similar events)
[2025-06-01 16:34:56] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[157, 85, 63, 83, 175, 74, 179] Max Struct:[+inf, +inf, 64, +inf, +inf, +inf, +inf]
RANDOM walk for 1000002 steps (2 resets) in 1794 ms. (557 steps per ms)
BEST_FIRST walk for 7000007 steps (14 resets) in 7904 ms. (885 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[159, 85, 63, 83, 175, 74, 179] Max Struct:[+inf, +inf, 64, +inf, +inf, +inf, +inf]
[2025-06-01 16:35:06] [INFO ] Flow matrix only has 166 transitions (discarded 97 similar events)
[2025-06-01 16:35:06] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:35:06] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 16:35:06] [INFO ] [Real]Absence check using state equation in 57 ms returned sat
[2025-06-01 16:35:06] [INFO ] State equation strengthened by 27 read => feed constraints.
[2025-06-01 16:35:06] [INFO ] [Real]Added 27 Read/Feed constraints in 7 ms returned sat
[2025-06-01 16:35:06] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:35:06] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 16:35:06] [INFO ] [Nat]Absence check using state equation in 82 ms returned sat
[2025-06-01 16:35:06] [INFO ] [Nat]Added 27 Read/Feed constraints in 8 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:35:06] [INFO ] Deduced a trap composed of 16 places in 119 ms of which 9 ms to minimize.
[2025-06-01 16:35:07] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 134 ms
[2025-06-01 16:35:07] [INFO ] Computed and/alt/rep : 67/333/63 causal constraints (skipped 101 transitions) in 16 ms.
[2025-06-01 16:35:07] [INFO ] Added : 30 causal constraints over 7 iterations in 144 ms. Result :sat
Minimization took 61 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:35:07] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 16:35:07] [INFO ] [Real]Absence check using state equation in 86 ms returned sat
[2025-06-01 16:35:07] [INFO ] [Real]Added 27 Read/Feed constraints in 9 ms returned sat
[2025-06-01 16:35:07] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:35:07] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 16:35:07] [INFO ] [Nat]Absence check using state equation in 96 ms returned sat
[2025-06-01 16:35:07] [INFO ] [Nat]Added 27 Read/Feed constraints in 12 ms returned sat
[2025-06-01 16:35:07] [INFO ] Computed and/alt/rep : 67/333/63 causal constraints (skipped 101 transitions) in 21 ms.
[2025-06-01 16:35:07] [INFO ] Added : 21 causal constraints over 6 iterations in 162 ms. Result :sat
Minimization took 74 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:35:07] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 16:35:07] [INFO ] [Real]Absence check using state equation in 93 ms returned sat
[2025-06-01 16:35:07] [INFO ] [Real]Added 27 Read/Feed constraints in 12 ms returned sat
[2025-06-01 16:35:08] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:35:08] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2025-06-01 16:35:08] [INFO ] [Nat]Absence check using state equation in 90 ms returned sat
[2025-06-01 16:35:08] [INFO ] [Nat]Added 27 Read/Feed constraints in 13 ms returned sat
[2025-06-01 16:35:08] [INFO ] Computed and/alt/rep : 67/333/63 causal constraints (skipped 101 transitions) in 21 ms.
[2025-06-01 16:35:08] [INFO ] Added : 1 causal constraints over 1 iterations in 62 ms. Result :sat
Minimization took 62 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:35:08] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 16:35:08] [INFO ] [Real]Absence check using state equation in 92 ms returned sat
[2025-06-01 16:35:08] [INFO ] [Real]Added 27 Read/Feed constraints in 11 ms returned sat
[2025-06-01 16:35:08] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:35:08] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 16:35:08] [INFO ] [Nat]Absence check using state equation in 96 ms returned sat
[2025-06-01 16:35:08] [INFO ] [Nat]Added 27 Read/Feed constraints in 11 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:35:08] [INFO ] Deduced a trap composed of 16 places in 157 ms of which 13 ms to minimize.
[2025-06-01 16:35:08] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 178 ms
[2025-06-01 16:35:08] [INFO ] Computed and/alt/rep : 67/333/63 causal constraints (skipped 101 transitions) in 20 ms.
[2025-06-01 16:35:08] [INFO ] Added : 7 causal constraints over 2 iterations in 83 ms. Result :sat
Minimization took 62 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:35:09] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 16:35:09] [INFO ] [Real]Absence check using state equation in 98 ms returned sat
[2025-06-01 16:35:09] [INFO ] [Real]Added 27 Read/Feed constraints in 12 ms returned sat
[2025-06-01 16:35:09] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:35:09] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 16:35:09] [INFO ] [Nat]Absence check using state equation in 95 ms returned sat
[2025-06-01 16:35:09] [INFO ] [Nat]Added 27 Read/Feed constraints in 12 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:35:09] [INFO ] Deduced a trap composed of 16 places in 171 ms of which 13 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:35:09] [INFO ] Deduced a trap composed of 16 places in 169 ms of which 14 ms to minimize.
[2025-06-01 16:35:09] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 373 ms
[2025-06-01 16:35:09] [INFO ] Computed and/alt/rep : 67/333/63 causal constraints (skipped 101 transitions) in 19 ms.
[2025-06-01 16:35:09] [INFO ] Added : 27 causal constraints over 8 iterations in 200 ms. Result :sat
Minimization took 78 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:35:10] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 16:35:10] [INFO ] [Real]Absence check using state equation in 101 ms returned sat
[2025-06-01 16:35:10] [INFO ] [Real]Added 27 Read/Feed constraints in 9 ms returned sat
[2025-06-01 16:35:10] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:35:10] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 16:35:10] [INFO ] [Nat]Absence check using state equation in 94 ms returned sat
[2025-06-01 16:35:10] [INFO ] [Nat]Added 27 Read/Feed constraints in 9 ms returned sat
[2025-06-01 16:35:10] [INFO ] Computed and/alt/rep : 67/333/63 causal constraints (skipped 101 transitions) in 21 ms.
[2025-06-01 16:35:10] [INFO ] Added : 18 causal constraints over 5 iterations in 135 ms. Result :sat
Minimization took 63 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:35:10] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 16:35:10] [INFO ] [Real]Absence check using state equation in 92 ms returned sat
[2025-06-01 16:35:10] [INFO ] [Real]Added 27 Read/Feed constraints in 13 ms returned sat
[2025-06-01 16:35:10] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:35:10] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 16:35:10] [INFO ] [Nat]Absence check using state equation in 83 ms returned sat
[2025-06-01 16:35:10] [INFO ] [Nat]Added 27 Read/Feed constraints in 10 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:35:11] [INFO ] Deduced a trap composed of 16 places in 133 ms of which 11 ms to minimize.
[2025-06-01 16:35:11] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 156 ms
[2025-06-01 16:35:11] [INFO ] Computed and/alt/rep : 67/333/63 causal constraints (skipped 101 transitions) in 16 ms.
[2025-06-01 16:35:11] [INFO ] Added : 10 causal constraints over 3 iterations in 103 ms. Result :sat
Minimization took 57 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[159, 85, 63, 83, 175, 74, 179] Max Struct:[+inf, +inf, 64, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[159, 85, 63, 83, 175, 74, 179] Max Struct:[+inf, +inf, 64, +inf, +inf, +inf, +inf]
Support contains 7 out of 104 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 104/104 places, 263/263 transitions.
Applied a total of 0 rules in 7 ms. Remains 104 /104 variables (removed 0) and now considering 263/263 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 7 ms. Remains : 104/104 places, 263/263 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 104/104 places, 263/263 transitions.
Applied a total of 0 rules in 6 ms. Remains 104 /104 variables (removed 0) and now considering 263/263 (removed 0) transitions.
[2025-06-01 16:35:13] [INFO ] Flow matrix only has 166 transitions (discarded 97 similar events)
[2025-06-01 16:35:13] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-01 16:35:13] [INFO ] Implicit Places using invariants in 208 ms returned []
[2025-06-01 16:35:13] [INFO ] Flow matrix only has 166 transitions (discarded 97 similar events)
[2025-06-01 16:35:13] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-01 16:35:13] [INFO ] State equation strengthened by 27 read => feed constraints.
[2025-06-01 16:35:13] [INFO ] Implicit Places using invariants and state equation in 303 ms returned []
Implicit Place search using SMT with State Equation took 513 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-01 16:35:13] [INFO ] Redundant transitions in 6 ms returned []
Running 261 sub problems to find dead transitions.
[2025-06-01 16:35:13] [INFO ] Flow matrix only has 166 transitions (discarded 97 similar events)
[2025-06-01 16:35:13] [INFO ] Invariant cache hit.
[2025-06-01 16:35:13] [INFO ] State equation strengthened by 27 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/104 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 261 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/104 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 261 unsolved
At refinement iteration 2 (OVERLAPS) 166/270 variables, 104/107 constraints. Problems are: Problem set: 0 solved, 261 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/270 variables, 27/134 constraints. Problems are: Problem set: 0 solved, 261 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/270 variables, 0/134 constraints. Problems are: Problem set: 0 solved, 261 unsolved
At refinement iteration 5 (OVERLAPS) 0/270 variables, 0/134 constraints. Problems are: Problem set: 0 solved, 261 unsolved
No progress, stopping.
After SMT solving in domain Real declared 270/270 variables, and 134 constraints, problems are : Problem set: 0 solved, 261 unsolved in 6759 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 104/104 constraints, ReadFeed: 27/27 constraints, PredecessorRefiner: 261/261 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 261 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/104 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 261 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/104 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 261 unsolved
At refinement iteration 2 (OVERLAPS) 166/270 variables, 104/107 constraints. Problems are: Problem set: 0 solved, 261 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/270 variables, 27/134 constraints. Problems are: Problem set: 0 solved, 261 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/270 variables, 261/395 constraints. Problems are: Problem set: 0 solved, 261 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:35:27] [INFO ] Deduced a trap along path composed of 3 places in 30 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:35:27] [INFO ] Deduced a trap along path composed of 3 places in 18 ms of which 1 ms to minimize.
At refinement iteration 5 (INCLUDED_ONLY) 0/270 variables, 2/397 constraints. Problems are: Problem set: 0 solved, 261 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/270 variables, 0/397 constraints. Problems are: Problem set: 0 solved, 261 unsolved
At refinement iteration 7 (OVERLAPS) 0/270 variables, 0/397 constraints. Problems are: Problem set: 0 solved, 261 unsolved
No progress, stopping.
After SMT solving in domain Int declared 270/270 variables, and 397 constraints, problems are : Problem set: 0 solved, 261 unsolved in 30024 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 104/104 constraints, ReadFeed: 27/27 constraints, PredecessorRefiner: 261/261 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 2/2 constraints]
After SMT, in 36903ms problems are : Problem set: 0 solved, 261 unsolved
Search for dead transitions found 0 dead transitions in 36905ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 37440 ms. Remains : 104/104 places, 263/263 transitions.
[2025-06-01 16:35:50] [INFO ] Flow matrix only has 166 transitions (discarded 97 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {30=1, 85=1, 119=1, 158=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {33=1, 88=1, 122=1, 158=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 82 ms. (steps per millisecond=121 ) properties (out of 7) seen :[3, 3, 2, 10, 8, 4, 4]
Current structural bounds on expressions (after cover walk) : Max Seen:[159, 85, 63, 83, 175, 74, 179] Max Struct:[+inf, +inf, 64, +inf, +inf, +inf, +inf]
[2025-06-01 16:35:50] [INFO ] Flow matrix only has 166 transitions (discarded 97 similar events)
[2025-06-01 16:35:50] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[159, 85, 63, 83, 175, 74, 179] Max Struct:[+inf, +inf, 64, +inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 1504 ms. (664 steps per ms)
BEST_FIRST walk for 7000007 steps (14 resets) in 8149 ms. (858 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[159, 85, 63, 85, 175, 74, 179] Max Struct:[+inf, +inf, 64, +inf, +inf, +inf, +inf]
[2025-06-01 16:36:00] [INFO ] Flow matrix only has 166 transitions (discarded 97 similar events)
[2025-06-01 16:36:00] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:36:00] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 16:36:00] [INFO ] [Real]Absence check using state equation in 88 ms returned sat
[2025-06-01 16:36:00] [INFO ] State equation strengthened by 27 read => feed constraints.
[2025-06-01 16:36:00] [INFO ] [Real]Added 27 Read/Feed constraints in 11 ms returned sat
[2025-06-01 16:36:00] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:36:00] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 16:36:00] [INFO ] [Nat]Absence check using state equation in 61 ms returned sat
[2025-06-01 16:36:00] [INFO ] [Nat]Added 27 Read/Feed constraints in 6 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:36:01] [INFO ] Deduced a trap composed of 16 places in 125 ms of which 14 ms to minimize.
[2025-06-01 16:36:01] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 139 ms
[2025-06-01 16:36:01] [INFO ] Computed and/alt/rep : 67/333/63 causal constraints (skipped 101 transitions) in 12 ms.
[2025-06-01 16:36:01] [INFO ] Added : 30 causal constraints over 7 iterations in 115 ms. Result :sat
Minimization took 46 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:36:01] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 16:36:01] [INFO ] [Real]Absence check using state equation in 82 ms returned sat
[2025-06-01 16:36:01] [INFO ] [Real]Added 27 Read/Feed constraints in 9 ms returned sat
[2025-06-01 16:36:01] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:36:01] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 16:36:01] [INFO ] [Nat]Absence check using state equation in 83 ms returned sat
[2025-06-01 16:36:01] [INFO ] [Nat]Added 27 Read/Feed constraints in 13 ms returned sat
[2025-06-01 16:36:01] [INFO ] Computed and/alt/rep : 67/333/63 causal constraints (skipped 101 transitions) in 21 ms.
[2025-06-01 16:36:01] [INFO ] Added : 21 causal constraints over 6 iterations in 164 ms. Result :sat
Minimization took 74 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:36:01] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 16:36:01] [INFO ] [Real]Absence check using state equation in 89 ms returned sat
[2025-06-01 16:36:01] [INFO ] [Real]Added 27 Read/Feed constraints in 12 ms returned sat
[2025-06-01 16:36:01] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:36:02] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 16:36:02] [INFO ] [Nat]Absence check using state equation in 90 ms returned sat
[2025-06-01 16:36:02] [INFO ] [Nat]Added 27 Read/Feed constraints in 13 ms returned sat
[2025-06-01 16:36:02] [INFO ] Computed and/alt/rep : 67/333/63 causal constraints (skipped 101 transitions) in 25 ms.
[2025-06-01 16:36:02] [INFO ] Added : 1 causal constraints over 1 iterations in 66 ms. Result :sat
Minimization took 62 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:36:02] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 16:36:02] [INFO ] [Real]Absence check using state equation in 86 ms returned sat
[2025-06-01 16:36:02] [INFO ] [Real]Added 27 Read/Feed constraints in 10 ms returned sat
[2025-06-01 16:36:02] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:36:02] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 16:36:02] [INFO ] [Nat]Absence check using state equation in 85 ms returned sat
[2025-06-01 16:36:02] [INFO ] [Nat]Added 27 Read/Feed constraints in 11 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:36:02] [INFO ] Deduced a trap composed of 16 places in 173 ms of which 13 ms to minimize.
[2025-06-01 16:36:02] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 192 ms
[2025-06-01 16:36:02] [INFO ] Computed and/alt/rep : 67/333/63 causal constraints (skipped 101 transitions) in 19 ms.
[2025-06-01 16:36:02] [INFO ] Added : 7 causal constraints over 2 iterations in 66 ms. Result :sat
Minimization took 38 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:36:02] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 16:36:03] [INFO ] [Real]Absence check using state equation in 96 ms returned sat
[2025-06-01 16:36:03] [INFO ] [Real]Added 27 Read/Feed constraints in 12 ms returned sat
[2025-06-01 16:36:03] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:36:03] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 16:36:03] [INFO ] [Nat]Absence check using state equation in 84 ms returned sat
[2025-06-01 16:36:03] [INFO ] [Nat]Added 27 Read/Feed constraints in 12 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:36:03] [INFO ] Deduced a trap composed of 16 places in 137 ms of which 14 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:36:03] [INFO ] Deduced a trap composed of 16 places in 137 ms of which 14 ms to minimize.
[2025-06-01 16:36:03] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 298 ms
[2025-06-01 16:36:03] [INFO ] Computed and/alt/rep : 67/333/63 causal constraints (skipped 101 transitions) in 12 ms.
[2025-06-01 16:36:03] [INFO ] Added : 27 causal constraints over 8 iterations in 123 ms. Result :sat
Minimization took 47 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:36:03] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 16:36:03] [INFO ] [Real]Absence check using state equation in 83 ms returned sat
[2025-06-01 16:36:03] [INFO ] [Real]Added 27 Read/Feed constraints in 9 ms returned sat
[2025-06-01 16:36:03] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:36:03] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 16:36:03] [INFO ] [Nat]Absence check using state equation in 95 ms returned sat
[2025-06-01 16:36:03] [INFO ] [Nat]Added 27 Read/Feed constraints in 10 ms returned sat
[2025-06-01 16:36:04] [INFO ] Computed and/alt/rep : 67/333/63 causal constraints (skipped 101 transitions) in 22 ms.
[2025-06-01 16:36:04] [INFO ] Added : 18 causal constraints over 5 iterations in 146 ms. Result :sat
Minimization took 70 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:36:04] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 16:36:04] [INFO ] [Real]Absence check using state equation in 96 ms returned sat
[2025-06-01 16:36:04] [INFO ] [Real]Added 27 Read/Feed constraints in 14 ms returned sat
[2025-06-01 16:36:04] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:36:04] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 16:36:04] [INFO ] [Nat]Absence check using state equation in 80 ms returned sat
[2025-06-01 16:36:04] [INFO ] [Nat]Added 27 Read/Feed constraints in 8 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:36:04] [INFO ] Deduced a trap composed of 16 places in 113 ms of which 8 ms to minimize.
[2025-06-01 16:36:04] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 129 ms
[2025-06-01 16:36:04] [INFO ] Computed and/alt/rep : 67/333/63 causal constraints (skipped 101 transitions) in 18 ms.
[2025-06-01 16:36:04] [INFO ] Added : 10 causal constraints over 3 iterations in 83 ms. Result :sat
Minimization took 54 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[159, 85, 63, 85, 175, 74, 179] Max Struct:[+inf, +inf, 64, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[159, 85, 63, 85, 175, 74, 179] Max Struct:[+inf, +inf, 64, +inf, +inf, +inf, +inf]
Support contains 7 out of 104 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 104/104 places, 263/263 transitions.
Applied a total of 0 rules in 7 ms. Remains 104 /104 variables (removed 0) and now considering 263/263 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 7 ms. Remains : 104/104 places, 263/263 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 104/104 places, 263/263 transitions.
Applied a total of 0 rules in 6 ms. Remains 104 /104 variables (removed 0) and now considering 263/263 (removed 0) transitions.
[2025-06-01 16:36:07] [INFO ] Flow matrix only has 166 transitions (discarded 97 similar events)
[2025-06-01 16:36:07] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-01 16:36:07] [INFO ] Implicit Places using invariants in 143 ms returned []
[2025-06-01 16:36:07] [INFO ] Flow matrix only has 166 transitions (discarded 97 similar events)
[2025-06-01 16:36:07] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-01 16:36:07] [INFO ] State equation strengthened by 27 read => feed constraints.
[2025-06-01 16:36:07] [INFO ] Implicit Places using invariants and state equation in 337 ms returned []
Implicit Place search using SMT with State Equation took 483 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-01 16:36:07] [INFO ] Redundant transitions in 2 ms returned []
Running 261 sub problems to find dead transitions.
[2025-06-01 16:36:07] [INFO ] Flow matrix only has 166 transitions (discarded 97 similar events)
[2025-06-01 16:36:07] [INFO ] Invariant cache hit.
[2025-06-01 16:36:07] [INFO ] State equation strengthened by 27 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/104 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 261 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/104 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 261 unsolved
At refinement iteration 2 (OVERLAPS) 166/270 variables, 104/107 constraints. Problems are: Problem set: 0 solved, 261 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/270 variables, 27/134 constraints. Problems are: Problem set: 0 solved, 261 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/270 variables, 0/134 constraints. Problems are: Problem set: 0 solved, 261 unsolved
At refinement iteration 5 (OVERLAPS) 0/270 variables, 0/134 constraints. Problems are: Problem set: 0 solved, 261 unsolved
No progress, stopping.
After SMT solving in domain Real declared 270/270 variables, and 134 constraints, problems are : Problem set: 0 solved, 261 unsolved in 5492 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 104/104 constraints, ReadFeed: 27/27 constraints, PredecessorRefiner: 261/261 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 261 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/104 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 261 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/104 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 261 unsolved
At refinement iteration 2 (OVERLAPS) 166/270 variables, 104/107 constraints. Problems are: Problem set: 0 solved, 261 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/270 variables, 27/134 constraints. Problems are: Problem set: 0 solved, 261 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/270 variables, 261/395 constraints. Problems are: Problem set: 0 solved, 261 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:36:20] [INFO ] Deduced a trap along path composed of 3 places in 38 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:36:20] [INFO ] Deduced a trap along path composed of 3 places in 26 ms of which 1 ms to minimize.
At refinement iteration 5 (INCLUDED_ONLY) 0/270 variables, 2/397 constraints. Problems are: Problem set: 0 solved, 261 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/270 variables, 0/397 constraints. Problems are: Problem set: 0 solved, 261 unsolved
Error getting values : (error "ParserException while parsing response: (timeout
org.smtlib.IParser$ParserException: Unbalanced parentheses at end of input")
Error getting values : (error "Error writing to Z3 solver: java.io.IOException: Broken pipe")
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 270/270 variables, and 397 constraints, problems are : Problem set: 0 solved, 261 unsolved in 30025 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 104/104 constraints, ReadFeed: 27/27 constraints, PredecessorRefiner: 261/261 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 2/2 constraints]
After SMT, in 35616ms problems are : Problem set: 0 solved, 261 unsolved
Search for dead transitions found 0 dead transitions in 35617ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 36116 ms. Remains : 104/104 places, 263/263 transitions.
[2025-06-01 16:36:43] [INFO ] Flow matrix only has 166 transitions (discarded 97 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {30=1, 85=1, 119=1, 158=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 19 ms.
This minimized invariant on transitions {33=1, 88=1, 122=1, 158=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 76 ms. (steps per millisecond=131 ) properties (out of 7) seen :[4, 2, 2, 6, 9, 2, 4]
Current structural bounds on expressions (after cover walk) : Max Seen:[159, 85, 63, 85, 175, 74, 179] Max Struct:[+inf, +inf, 64, +inf, +inf, +inf, +inf]
[2025-06-01 16:36:43] [INFO ] Flow matrix only has 166 transitions (discarded 97 similar events)
[2025-06-01 16:36:43] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[159, 85, 63, 85, 175, 74, 179] Max Struct:[+inf, +inf, 64, +inf, +inf, +inf, +inf]
RANDOM walk for 1000002 steps (2 resets) in 1819 ms. (549 steps per ms)
BEST_FIRST walk for 7000007 steps (14 resets) in 8591 ms. (814 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[159, 86, 63, 90, 175, 74, 179] Max Struct:[+inf, +inf, 64, +inf, +inf, +inf, +inf]
[2025-06-01 16:36:54] [INFO ] Flow matrix only has 166 transitions (discarded 97 similar events)
[2025-06-01 16:36:54] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:36:54] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 16:36:54] [INFO ] [Real]Absence check using state equation in 63 ms returned sat
[2025-06-01 16:36:54] [INFO ] State equation strengthened by 27 read => feed constraints.
[2025-06-01 16:36:54] [INFO ] [Real]Added 27 Read/Feed constraints in 7 ms returned sat
[2025-06-01 16:36:54] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:36:54] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 16:36:54] [INFO ] [Nat]Absence check using state equation in 60 ms returned sat
[2025-06-01 16:36:54] [INFO ] [Nat]Added 27 Read/Feed constraints in 7 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:36:54] [INFO ] Deduced a trap composed of 16 places in 108 ms of which 9 ms to minimize.
[2025-06-01 16:36:54] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 126 ms
[2025-06-01 16:36:54] [INFO ] Computed and/alt/rep : 67/333/63 causal constraints (skipped 101 transitions) in 13 ms.
[2025-06-01 16:36:54] [INFO ] Added : 30 causal constraints over 7 iterations in 126 ms. Result :sat
Minimization took 49 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:36:54] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 16:36:54] [INFO ] [Real]Absence check using state equation in 58 ms returned sat
[2025-06-01 16:36:54] [INFO ] [Real]Added 27 Read/Feed constraints in 6 ms returned sat
[2025-06-01 16:36:54] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:36:54] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 16:36:54] [INFO ] [Nat]Absence check using state equation in 59 ms returned sat
[2025-06-01 16:36:54] [INFO ] [Nat]Added 27 Read/Feed constraints in 7 ms returned sat
[2025-06-01 16:36:54] [INFO ] Computed and/alt/rep : 67/333/63 causal constraints (skipped 101 transitions) in 13 ms.
[2025-06-01 16:36:54] [INFO ] Added : 21 causal constraints over 6 iterations in 103 ms. Result :sat
Minimization took 45 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:36:55] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 16:36:55] [INFO ] [Real]Absence check using state equation in 85 ms returned sat
[2025-06-01 16:36:55] [INFO ] [Real]Added 27 Read/Feed constraints in 11 ms returned sat
[2025-06-01 16:36:55] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:36:55] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 16:36:55] [INFO ] [Nat]Absence check using state equation in 81 ms returned sat
[2025-06-01 16:36:55] [INFO ] [Nat]Added 27 Read/Feed constraints in 13 ms returned sat
[2025-06-01 16:36:55] [INFO ] Computed and/alt/rep : 67/333/63 causal constraints (skipped 101 transitions) in 23 ms.
[2025-06-01 16:36:55] [INFO ] Added : 1 causal constraints over 1 iterations in 64 ms. Result :sat
Minimization took 67 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:36:55] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 16:36:55] [INFO ] [Real]Absence check using state equation in 94 ms returned sat
[2025-06-01 16:36:55] [INFO ] [Real]Added 27 Read/Feed constraints in 12 ms returned sat
[2025-06-01 16:36:55] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:36:55] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 16:36:55] [INFO ] [Nat]Absence check using state equation in 89 ms returned sat
[2025-06-01 16:36:55] [INFO ] [Nat]Added 27 Read/Feed constraints in 12 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:36:55] [INFO ] Deduced a trap composed of 16 places in 142 ms of which 14 ms to minimize.
[2025-06-01 16:36:55] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 162 ms
[2025-06-01 16:36:55] [INFO ] Computed and/alt/rep : 67/333/63 causal constraints (skipped 101 transitions) in 16 ms.
[2025-06-01 16:36:55] [INFO ] Added : 7 causal constraints over 2 iterations in 69 ms. Result :sat
Minimization took 61 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:36:56] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 16:36:56] [INFO ] [Real]Absence check using state equation in 88 ms returned sat
[2025-06-01 16:36:56] [INFO ] [Real]Added 27 Read/Feed constraints in 11 ms returned sat
[2025-06-01 16:36:56] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:36:56] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 16:36:56] [INFO ] [Nat]Absence check using state equation in 181 ms returned sat
[2025-06-01 16:36:56] [INFO ] [Nat]Added 27 Read/Feed constraints in 11 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:36:56] [INFO ] Deduced a trap composed of 16 places in 149 ms of which 13 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:36:56] [INFO ] Deduced a trap composed of 16 places in 113 ms of which 9 ms to minimize.
[2025-06-01 16:36:56] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 296 ms
[2025-06-01 16:36:56] [INFO ] Computed and/alt/rep : 67/333/63 causal constraints (skipped 101 transitions) in 17 ms.
[2025-06-01 16:36:56] [INFO ] Added : 27 causal constraints over 8 iterations in 165 ms. Result :sat
Minimization took 52 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:36:57] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 16:36:57] [INFO ] [Real]Absence check using state equation in 92 ms returned sat
[2025-06-01 16:36:57] [INFO ] [Real]Added 27 Read/Feed constraints in 8 ms returned sat
[2025-06-01 16:36:57] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:36:57] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 16:36:57] [INFO ] [Nat]Absence check using state equation in 79 ms returned sat
[2025-06-01 16:36:57] [INFO ] [Nat]Added 27 Read/Feed constraints in 7 ms returned sat
[2025-06-01 16:36:57] [INFO ] Computed and/alt/rep : 67/333/63 causal constraints (skipped 101 transitions) in 18 ms.
[2025-06-01 16:36:57] [INFO ] Added : 18 causal constraints over 5 iterations in 117 ms. Result :sat
Minimization took 45 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:36:57] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 16:36:57] [INFO ] [Real]Absence check using state equation in 93 ms returned sat
[2025-06-01 16:36:57] [INFO ] [Real]Added 27 Read/Feed constraints in 13 ms returned sat
[2025-06-01 16:36:57] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:36:57] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 16:36:57] [INFO ] [Nat]Absence check using state equation in 81 ms returned sat
[2025-06-01 16:36:57] [INFO ] [Nat]Added 27 Read/Feed constraints in 9 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:36:57] [INFO ] Deduced a trap composed of 16 places in 110 ms of which 9 ms to minimize.
[2025-06-01 16:36:57] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 126 ms
[2025-06-01 16:36:57] [INFO ] Computed and/alt/rep : 67/333/63 causal constraints (skipped 101 transitions) in 18 ms.
[2025-06-01 16:36:58] [INFO ] Added : 10 causal constraints over 3 iterations in 89 ms. Result :sat
Minimization took 45 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[159, 86, 63, 90, 175, 74, 179] Max Struct:[+inf, +inf, 64, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[159, 86, 63, 90, 175, 74, 179] Max Struct:[+inf, +inf, 64, +inf, +inf, +inf, +inf]
Support contains 7 out of 104 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 104/104 places, 263/263 transitions.
Applied a total of 0 rules in 6 ms. Remains 104 /104 variables (removed 0) and now considering 263/263 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 6 ms. Remains : 104/104 places, 263/263 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 104/104 places, 263/263 transitions.
Applied a total of 0 rules in 5 ms. Remains 104 /104 variables (removed 0) and now considering 263/263 (removed 0) transitions.
[2025-06-01 16:37:00] [INFO ] Flow matrix only has 166 transitions (discarded 97 similar events)
[2025-06-01 16:37:00] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-01 16:37:00] [INFO ] Implicit Places using invariants in 216 ms returned []
[2025-06-01 16:37:00] [INFO ] Flow matrix only has 166 transitions (discarded 97 similar events)
[2025-06-01 16:37:00] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-01 16:37:00] [INFO ] State equation strengthened by 27 read => feed constraints.
[2025-06-01 16:37:00] [INFO ] Implicit Places using invariants and state equation in 473 ms returned []
Implicit Place search using SMT with State Equation took 691 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-01 16:37:01] [INFO ] Redundant transitions in 1 ms returned []
Running 261 sub problems to find dead transitions.
[2025-06-01 16:37:01] [INFO ] Flow matrix only has 166 transitions (discarded 97 similar events)
[2025-06-01 16:37:01] [INFO ] Invariant cache hit.
[2025-06-01 16:37:01] [INFO ] State equation strengthened by 27 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/104 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 261 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/104 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 261 unsolved
At refinement iteration 2 (OVERLAPS) 166/270 variables, 104/107 constraints. Problems are: Problem set: 0 solved, 261 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/270 variables, 27/134 constraints. Problems are: Problem set: 0 solved, 261 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/270 variables, 0/134 constraints. Problems are: Problem set: 0 solved, 261 unsolved
At refinement iteration 5 (OVERLAPS) 0/270 variables, 0/134 constraints. Problems are: Problem set: 0 solved, 261 unsolved
No progress, stopping.
After SMT solving in domain Real declared 270/270 variables, and 134 constraints, problems are : Problem set: 0 solved, 261 unsolved in 8117 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 104/104 constraints, ReadFeed: 27/27 constraints, PredecessorRefiner: 261/261 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 261 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/104 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 261 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/104 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 261 unsolved
At refinement iteration 2 (OVERLAPS) 166/270 variables, 104/107 constraints. Problems are: Problem set: 0 solved, 261 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/270 variables, 27/134 constraints. Problems are: Problem set: 0 solved, 261 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/270 variables, 261/395 constraints. Problems are: Problem set: 0 solved, 261 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:37:18] [INFO ] Deduced a trap along path composed of 3 places in 22 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:37:18] [INFO ] Deduced a trap along path composed of 3 places in 20 ms of which 1 ms to minimize.
At refinement iteration 5 (INCLUDED_ONLY) 0/270 variables, 2/397 constraints. Problems are: Problem set: 0 solved, 261 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/270 variables, 0/397 constraints. Problems are: Problem set: 0 solved, 261 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 270/270 variables, and 397 constraints, problems are : Problem set: 0 solved, 261 unsolved in 30019 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 104/104 constraints, ReadFeed: 27/27 constraints, PredecessorRefiner: 261/261 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 2/2 constraints]
After SMT, in 38208ms problems are : Problem set: 0 solved, 261 unsolved
Search for dead transitions found 0 dead transitions in 38209ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 38913 ms. Remains : 104/104 places, 263/263 transitions.
[2025-06-01 16:37:39] [INFO ] Flow matrix only has 166 transitions (discarded 97 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {30=1, 85=1, 119=1, 158=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {33=1, 88=1, 122=1, 158=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 76 ms. (steps per millisecond=131 ) properties (out of 7) seen :[3, 2, 2, 12, 7, 2, 5]
Current structural bounds on expressions (after cover walk) : Max Seen:[159, 86, 63, 90, 175, 74, 179] Max Struct:[+inf, +inf, 64, +inf, +inf, +inf, +inf]
[2025-06-01 16:37:39] [INFO ] Flow matrix only has 166 transitions (discarded 97 similar events)
[2025-06-01 16:37:39] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[159, 86, 63, 90, 175, 74, 179] Max Struct:[+inf, +inf, 64, +inf, +inf, +inf, +inf]
RANDOM walk for 1000003 steps (2 resets) in 1512 ms. (660 steps per ms)
BEST_FIRST walk for 7000007 steps (14 resets) in 8649 ms. (809 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[159, 86, 63, 90, 175, 74, 179] Max Struct:[+inf, +inf, 64, +inf, +inf, +inf, +inf]
[2025-06-01 16:37:49] [INFO ] Flow matrix only has 166 transitions (discarded 97 similar events)
[2025-06-01 16:37:49] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:37:49] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 16:37:49] [INFO ] [Real]Absence check using state equation in 70 ms returned sat
[2025-06-01 16:37:49] [INFO ] State equation strengthened by 27 read => feed constraints.
[2025-06-01 16:37:49] [INFO ] [Real]Added 27 Read/Feed constraints in 10 ms returned sat
[2025-06-01 16:37:49] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:37:49] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 16:37:49] [INFO ] [Nat]Absence check using state equation in 67 ms returned sat
[2025-06-01 16:37:49] [INFO ] [Nat]Added 27 Read/Feed constraints in 9 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:37:50] [INFO ] Deduced a trap composed of 16 places in 154 ms of which 11 ms to minimize.
[2025-06-01 16:37:50] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 172 ms
[2025-06-01 16:37:50] [INFO ] Computed and/alt/rep : 67/333/63 causal constraints (skipped 101 transitions) in 13 ms.
[2025-06-01 16:37:50] [INFO ] Added : 30 causal constraints over 7 iterations in 241 ms. Result :sat
Minimization took 62 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:37:50] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 16:37:50] [INFO ] [Real]Absence check using state equation in 74 ms returned sat
[2025-06-01 16:37:50] [INFO ] [Real]Added 27 Read/Feed constraints in 8 ms returned sat
[2025-06-01 16:37:50] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:37:50] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 16:37:50] [INFO ] [Nat]Absence check using state equation in 71 ms returned sat
[2025-06-01 16:37:50] [INFO ] [Nat]Added 27 Read/Feed constraints in 9 ms returned sat
[2025-06-01 16:37:50] [INFO ] Computed and/alt/rep : 67/333/63 causal constraints (skipped 101 transitions) in 16 ms.
[2025-06-01 16:37:50] [INFO ] Added : 21 causal constraints over 6 iterations in 141 ms. Result :sat
Minimization took 72 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:37:51] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 16:37:51] [INFO ] [Real]Absence check using state equation in 83 ms returned sat
[2025-06-01 16:37:51] [INFO ] [Real]Added 27 Read/Feed constraints in 13 ms returned sat
[2025-06-01 16:37:51] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:37:51] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 16:37:51] [INFO ] [Nat]Absence check using state equation in 81 ms returned sat
[2025-06-01 16:37:51] [INFO ] [Nat]Added 27 Read/Feed constraints in 16 ms returned sat
[2025-06-01 16:37:51] [INFO ] Computed and/alt/rep : 67/333/63 causal constraints (skipped 101 transitions) in 22 ms.
[2025-06-01 16:37:51] [INFO ] Added : 1 causal constraints over 1 iterations in 63 ms. Result :sat
Minimization took 62 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:37:51] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 16:37:51] [INFO ] [Real]Absence check using state equation in 88 ms returned sat
[2025-06-01 16:37:51] [INFO ] [Real]Added 27 Read/Feed constraints in 13 ms returned sat
[2025-06-01 16:37:51] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:37:51] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 16:37:51] [INFO ] [Nat]Absence check using state equation in 88 ms returned sat
[2025-06-01 16:37:51] [INFO ] [Nat]Added 27 Read/Feed constraints in 12 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:37:51] [INFO ] Deduced a trap composed of 16 places in 142 ms of which 13 ms to minimize.
[2025-06-01 16:37:51] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 196 ms
[2025-06-01 16:37:52] [INFO ] Computed and/alt/rep : 67/333/63 causal constraints (skipped 101 transitions) in 22 ms.
[2025-06-01 16:37:52] [INFO ] Added : 7 causal constraints over 2 iterations in 84 ms. Result :sat
Minimization took 62 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:37:52] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 16:37:52] [INFO ] [Real]Absence check using state equation in 90 ms returned sat
[2025-06-01 16:37:52] [INFO ] [Real]Added 27 Read/Feed constraints in 11 ms returned sat
[2025-06-01 16:37:52] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:37:52] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 16:37:52] [INFO ] [Nat]Absence check using state equation in 126 ms returned sat
[2025-06-01 16:37:52] [INFO ] [Nat]Added 27 Read/Feed constraints in 13 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:37:52] [INFO ] Deduced a trap composed of 16 places in 169 ms of which 14 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:37:52] [INFO ] Deduced a trap composed of 16 places in 160 ms of which 15 ms to minimize.
[2025-06-01 16:37:52] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 365 ms
[2025-06-01 16:37:52] [INFO ] Computed and/alt/rep : 67/333/63 causal constraints (skipped 101 transitions) in 25 ms.
[2025-06-01 16:37:53] [INFO ] Added : 27 causal constraints over 8 iterations in 208 ms. Result :sat
Minimization took 82 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:37:53] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 16:37:53] [INFO ] [Real]Absence check using state equation in 93 ms returned sat
[2025-06-01 16:37:53] [INFO ] [Real]Added 27 Read/Feed constraints in 9 ms returned sat
[2025-06-01 16:37:53] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:37:53] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 16:37:53] [INFO ] [Nat]Absence check using state equation in 98 ms returned sat
[2025-06-01 16:37:53] [INFO ] [Nat]Added 27 Read/Feed constraints in 10 ms returned sat
[2025-06-01 16:37:53] [INFO ] Computed and/alt/rep : 67/333/63 causal constraints (skipped 101 transitions) in 21 ms.
[2025-06-01 16:37:53] [INFO ] Added : 18 causal constraints over 5 iterations in 148 ms. Result :sat
Minimization took 71 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:37:53] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 16:37:54] [INFO ] [Real]Absence check using state equation in 101 ms returned sat
[2025-06-01 16:37:54] [INFO ] [Real]Added 27 Read/Feed constraints in 15 ms returned sat
[2025-06-01 16:37:54] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:37:54] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 16:37:54] [INFO ] [Nat]Absence check using state equation in 98 ms returned sat
[2025-06-01 16:37:54] [INFO ] [Nat]Added 27 Read/Feed constraints in 14 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:37:54] [INFO ] Deduced a trap composed of 16 places in 178 ms of which 14 ms to minimize.
[2025-06-01 16:37:54] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 203 ms
[2025-06-01 16:37:54] [INFO ] Computed and/alt/rep : 67/333/63 causal constraints (skipped 101 transitions) in 19 ms.
[2025-06-01 16:37:54] [INFO ] Added : 10 causal constraints over 3 iterations in 109 ms. Result :sat
Minimization took 67 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[159, 86, 63, 90, 175, 74, 179] Max Struct:[+inf, +inf, 64, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[159, 86, 63, 90, 175, 74, 179] Max Struct:[+inf, +inf, 64, +inf, +inf, +inf, +inf]
Support contains 7 out of 104 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 104/104 places, 263/263 transitions.
Applied a total of 0 rules in 6 ms. Remains 104 /104 variables (removed 0) and now considering 263/263 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 6 ms. Remains : 104/104 places, 263/263 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 104/104 places, 263/263 transitions.
Applied a total of 0 rules in 9 ms. Remains 104 /104 variables (removed 0) and now considering 263/263 (removed 0) transitions.
[2025-06-01 16:37:57] [INFO ] Flow matrix only has 166 transitions (discarded 97 similar events)
[2025-06-01 16:37:57] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-01 16:37:57] [INFO ] Implicit Places using invariants in 143 ms returned []
[2025-06-01 16:37:57] [INFO ] Flow matrix only has 166 transitions (discarded 97 similar events)
[2025-06-01 16:37:57] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-01 16:37:57] [INFO ] State equation strengthened by 27 read => feed constraints.
[2025-06-01 16:37:57] [INFO ] Implicit Places using invariants and state equation in 323 ms returned []
Implicit Place search using SMT with State Equation took 468 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-01 16:37:57] [INFO ] Redundant transitions in 1 ms returned []
Running 261 sub problems to find dead transitions.
[2025-06-01 16:37:57] [INFO ] Flow matrix only has 166 transitions (discarded 97 similar events)
[2025-06-01 16:37:57] [INFO ] Invariant cache hit.
[2025-06-01 16:37:57] [INFO ] State equation strengthened by 27 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/104 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 261 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/104 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 261 unsolved
At refinement iteration 2 (OVERLAPS) 166/270 variables, 104/107 constraints. Problems are: Problem set: 0 solved, 261 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/270 variables, 27/134 constraints. Problems are: Problem set: 0 solved, 261 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/270 variables, 0/134 constraints. Problems are: Problem set: 0 solved, 261 unsolved
At refinement iteration 5 (OVERLAPS) 0/270 variables, 0/134 constraints. Problems are: Problem set: 0 solved, 261 unsolved
No progress, stopping.
After SMT solving in domain Real declared 270/270 variables, and 134 constraints, problems are : Problem set: 0 solved, 261 unsolved in 7814 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 104/104 constraints, ReadFeed: 27/27 constraints, PredecessorRefiner: 261/261 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 261 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/104 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 261 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/104 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 261 unsolved
At refinement iteration 2 (OVERLAPS) 166/270 variables, 104/107 constraints. Problems are: Problem set: 0 solved, 261 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/270 variables, 27/134 constraints. Problems are: Problem set: 0 solved, 261 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/270 variables, 261/395 constraints. Problems are: Problem set: 0 solved, 261 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:38:14] [INFO ] Deduced a trap along path composed of 3 places in 25 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:38:14] [INFO ] Deduced a trap along path composed of 3 places in 23 ms of which 1 ms to minimize.
At refinement iteration 5 (INCLUDED_ONLY) 0/270 variables, 2/397 constraints. Problems are: Problem set: 0 solved, 261 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/270 variables, 0/397 constraints. Problems are: Problem set: 0 solved, 261 unsolved
Error getting values : (error "ParserException while parsing response: ((t0 42)
(t1 1)
(t2 timeout
org.smtlib.IParser$ParserException: Unbalanced parentheses at end of input")
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 270/270 variables, and 397 constraints, problems are : Problem set: 0 solved, 261 unsolved in 30018 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 104/104 constraints, ReadFeed: 27/27 constraints, PredecessorRefiner: 261/261 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 2/2 constraints]
After SMT, in 37926ms problems are : Problem set: 0 solved, 261 unsolved
Search for dead transitions found 0 dead transitions in 37927ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 38422 ms. Remains : 104/104 places, 263/263 transitions.
[2025-06-01 16:38:35] [INFO ] Flow matrix only has 166 transitions (discarded 97 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {30=1, 85=1, 119=1, 158=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {33=1, 88=1, 122=1, 158=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 74 ms. (steps per millisecond=135 ) properties (out of 7) seen :[2, 1, 2, 6, 6, 4, 6]
Current structural bounds on expressions (after cover walk) : Max Seen:[159, 86, 63, 90, 175, 74, 179] Max Struct:[+inf, +inf, 64, +inf, +inf, +inf, +inf]
RANDOM walk for 40000 steps (8 resets) in 1336 ms. (29 steps per ms) remains 6/8 properties
BEST_FIRST walk for 40004 steps (8 resets) in 196 ms. (203 steps per ms) remains 6/6 properties
BEST_FIRST walk for 40004 steps (8 resets) in 163 ms. (243 steps per ms) remains 6/6 properties
BEST_FIRST walk for 40004 steps (8 resets) in 150 ms. (264 steps per ms) remains 6/6 properties
BEST_FIRST walk for 40004 steps (8 resets) in 147 ms. (270 steps per ms) remains 6/6 properties
BEST_FIRST walk for 40004 steps (8 resets) in 112 ms. (354 steps per ms) remains 6/6 properties
BEST_FIRST walk for 40004 steps (8 resets) in 107 ms. (370 steps per ms) remains 6/6 properties
[2025-06-01 16:38:36] [INFO ] Flow matrix only has 166 transitions (discarded 97 similar events)
[2025-06-01 16:38:36] [INFO ] Invariant cache hit.
[2025-06-01 16:38:36] [INFO ] State equation strengthened by 27 read => feed constraints.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/6 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 1 (OVERLAPS) 20/26 variables, 6/6 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/26 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 6 unsolved
[2025-06-01 16:38:36] [INFO ] Flatten gal took : 155 ms
At refinement iteration 3 (OVERLAPS) 111/137 variables, 19/25 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/137 variables, 1/26 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/137 variables, 2/28 constraints. Problems are: Problem set: 0 solved, 6 unsolved
[2025-06-01 16:38:36] [INFO ] Flatten gal took : 61 ms
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/137 variables, 0/28 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 7 (OVERLAPS) 9/146 variables, 1/29 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/146 variables, 1/30 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/146 variables, 0/30 constraints. Problems are: Problem set: 0 solved, 6 unsolved
[2025-06-01 16:38:36] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality5368325867988146757.gal : 25 ms
[2025-06-01 16:38:36] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality8717401702476444839.prop : 2 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality5368325867988146757.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality8717401702476444839.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...328
At refinement iteration 10 (OVERLAPS) 110/256 variables, 68/98 constraints. Problems are: Problem set: 0 solved, 6 unsolved
Loading property file /tmp/ReachabilityCardinality8717401702476444839.prop.
At refinement iteration 11 (INCLUDED_ONLY) 0/256 variables, 25/123 constraints. Problems are: Problem set: 0 solved, 6 unsolved
SDD proceeding with computation,6 properties remain. new max is 4
SDD size :1 after 31
At refinement iteration 12 (INCLUDED_ONLY) 0/256 variables, 0/123 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 13 (OVERLAPS) 6/262 variables, 1/124 constraints. Problems are: Problem set: 0 solved, 6 unsolved
SDD proceeding with computation,6 properties remain. new max is 8
SDD size :31 after 1071
At refinement iteration 14 (INCLUDED_ONLY) 0/262 variables, 0/124 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 15 (OVERLAPS) 8/270 variables, 10/134 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/270 variables, 0/134 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 17 (OVERLAPS) 0/270 variables, 0/134 constraints. Problems are: Problem set: 0 solved, 6 unsolved
No progress, stopping.
After SMT solving in domain Real declared 270/270 variables, and 134 constraints, problems are : Problem set: 0 solved, 6 unsolved in 622 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 104/104 constraints, ReadFeed: 27/27 constraints, PredecessorRefiner: 6/6 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 6 unsolved
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/6 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 1 (OVERLAPS) 20/26 variables, 6/6 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/26 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 3 (OVERLAPS) 111/137 variables, 19/25 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/137 variables, 1/26 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/137 variables, 2/28 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/137 variables, 5/33 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/137 variables, 0/33 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 8 (OVERLAPS) 9/146 variables, 1/34 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/146 variables, 1/35 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/146 variables, 0/35 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 11 (OVERLAPS) 110/256 variables, 68/103 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/256 variables, 25/128 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/256 variables, 1/129 constraints. Problems are: Problem set: 0 solved, 6 unsolved
SDD proceeding with computation,6 properties remain. new max is 16
SDD size :1071 after 201057
At refinement iteration 14 (INCLUDED_ONLY) 0/256 variables, 0/129 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 15 (OVERLAPS) 6/262 variables, 1/130 constraints. Problems are: Problem set: 0 solved, 6 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:38:37] [INFO ] Deduced a trap along path composed of 3 places in 35 ms of which 1 ms to minimize.
At refinement iteration 16 (INCLUDED_ONLY) 0/262 variables, 1/131 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/262 variables, 0/131 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 18 (OVERLAPS) 8/270 variables, 10/141 constraints. Problems are: Problem set: 0 solved, 6 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:38:38] [INFO ] Deduced a trap along path composed of 3 places in 40 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:38:38] [INFO ] Deduced a trap along path composed of 3 places in 24 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:38:38] [INFO ] Deduced a trap along path composed of 3 places in 103 ms of which 1 ms to minimize.
At refinement iteration 19 (INCLUDED_ONLY) 0/270 variables, 3/144 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/270 variables, 0/144 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 21 (OVERLAPS) 0/270 variables, 0/144 constraints. Problems are: Problem set: 0 solved, 6 unsolved
No progress, stopping.
After SMT solving in domain Int declared 270/270 variables, and 144 constraints, problems are : Problem set: 0 solved, 6 unsolved in 1652 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 104/104 constraints, ReadFeed: 27/27 constraints, PredecessorRefiner: 6/6 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 4/4 constraints]
After SMT, in 2289ms problems are : Problem set: 0 solved, 6 unsolved
Fused 6 Parikh solutions to 3 different solutions.
SDD proceeding with computation,6 properties remain. new max is 32
SDD size :201057 after 7.82447e+08
Parikh walk visited 0 properties in 30217 ms.
Support contains 6 out of 104 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 104/104 places, 263/263 transitions.
Applied a total of 0 rules in 7 ms. Remains 104 /104 variables (removed 0) and now considering 263/263 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 7 ms. Remains : 104/104 places, 263/263 transitions.
RANDOM walk for 40034 steps (8 resets) in 188 ms. (211 steps per ms) remains 6/6 properties
BEST_FIRST walk for 40004 steps (8 resets) in 101 ms. (392 steps per ms) remains 6/6 properties
BEST_FIRST walk for 40003 steps (8 resets) in 99 ms. (400 steps per ms) remains 6/6 properties
BEST_FIRST walk for 40004 steps (8 resets) in 101 ms. (392 steps per ms) remains 6/6 properties
BEST_FIRST walk for 40004 steps (8 resets) in 101 ms. (392 steps per ms) remains 6/6 properties
BEST_FIRST walk for 40003 steps (8 resets) in 99 ms. (400 steps per ms) remains 6/6 properties
BEST_FIRST walk for 40004 steps (8 resets) in 92 ms. (430 steps per ms) remains 6/6 properties
Interrupted probabilistic random walk after 251847 steps, run timeout after 3001 ms. (steps per millisecond=83 ) properties seen :0 out of 6
Probabilistic random walk after 251847 steps, saw 156781 distinct states, run finished after 3010 ms. (steps per millisecond=83 ) properties seen :0
[2025-06-01 16:39:12] [INFO ] Flow matrix only has 166 transitions (discarded 97 similar events)
[2025-06-01 16:39:12] [INFO ] Invariant cache hit.
[2025-06-01 16:39:12] [INFO ] State equation strengthened by 27 read => feed constraints.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/6 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 1 (OVERLAPS) 20/26 variables, 6/6 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/26 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 3 (OVERLAPS) 111/137 variables, 19/25 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/137 variables, 1/26 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/137 variables, 2/28 constraints. Problems are: Problem set: 0 solved, 6 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/137 variables, 0/28 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 7 (OVERLAPS) 9/146 variables, 1/29 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/146 variables, 1/30 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/146 variables, 0/30 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 10 (OVERLAPS) 110/256 variables, 68/98 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/256 variables, 25/123 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/256 variables, 0/123 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 13 (OVERLAPS) 6/262 variables, 1/124 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/262 variables, 0/124 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 15 (OVERLAPS) 8/270 variables, 10/134 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/270 variables, 0/134 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 17 (OVERLAPS) 0/270 variables, 0/134 constraints. Problems are: Problem set: 0 solved, 6 unsolved
No progress, stopping.
After SMT solving in domain Real declared 270/270 variables, and 134 constraints, problems are : Problem set: 0 solved, 6 unsolved in 364 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 104/104 constraints, ReadFeed: 27/27 constraints, PredecessorRefiner: 6/6 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 6 unsolved
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/6 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 1 (OVERLAPS) 20/26 variables, 6/6 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/26 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 3 (OVERLAPS) 111/137 variables, 19/25 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/137 variables, 1/26 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/137 variables, 2/28 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/137 variables, 5/33 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/137 variables, 0/33 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 8 (OVERLAPS) 9/146 variables, 1/34 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/146 variables, 1/35 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/146 variables, 0/35 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 11 (OVERLAPS) 110/256 variables, 68/103 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/256 variables, 25/128 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/256 variables, 1/129 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/256 variables, 0/129 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 15 (OVERLAPS) 6/262 variables, 1/130 constraints. Problems are: Problem set: 0 solved, 6 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:39:13] [INFO ] Deduced a trap along path composed of 3 places in 20 ms of which 1 ms to minimize.
At refinement iteration 16 (INCLUDED_ONLY) 0/262 variables, 1/131 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/262 variables, 0/131 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 18 (OVERLAPS) 8/270 variables, 10/141 constraints. Problems are: Problem set: 0 solved, 6 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:39:13] [INFO ] Deduced a trap along path composed of 3 places in 21 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:39:13] [INFO ] Deduced a trap along path composed of 3 places in 24 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:39:13] [INFO ] Deduced a trap along path composed of 3 places in 19 ms of which 0 ms to minimize.
At refinement iteration 19 (INCLUDED_ONLY) 0/270 variables, 3/144 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/270 variables, 0/144 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 21 (OVERLAPS) 0/270 variables, 0/144 constraints. Problems are: Problem set: 0 solved, 6 unsolved
No progress, stopping.
After SMT solving in domain Int declared 270/270 variables, and 144 constraints, problems are : Problem set: 0 solved, 6 unsolved in 1178 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 104/104 constraints, ReadFeed: 27/27 constraints, PredecessorRefiner: 6/6 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 4/4 constraints]
After SMT, in 1549ms problems are : Problem set: 0 solved, 6 unsolved
Fused 6 Parikh solutions to 3 different solutions.
Detected timeout of ITS tools.
[2025-06-01 16:39:26] [INFO ] Flatten gal took : 33 ms
[2025-06-01 16:39:26] [INFO ] Applying decomposition
[2025-06-01 16:39:26] [INFO ] Flatten gal took : 26 ms
Converted graph to binary with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/convert-linux64' '-i' '/tmp/graph14376527805369547037.txt' '-o' '/tmp/graph14376527805369547037.bin' '-w' '/tmp/graph14376527805369547037.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/louvain-linux64' '/tmp/graph14376527805369547037.bin' '-l' '-1' '-v' '-w' '/tmp/graph14376527805369547037.weights' '-q' '0' '-e' '0.001'
[2025-06-01 16:39:27] [INFO ] Decomposing Gal with order
[2025-06-01 16:39:27] [INFO ] Rewriting arrays to variables to allow decomposition.
[2025-06-01 16:39:27] [INFO ] Removed a total of 455 redundant transitions.
[2025-06-01 16:39:27] [INFO ] Flatten gal took : 91 ms
[2025-06-01 16:39:27] [INFO ] Fuse similar labels procedure discarded/fused a total of 132 labels/synchronizations in 35 ms.
[2025-06-01 16:39:27] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality11711550762557408112.gal : 17 ms
[2025-06-01 16:39:27] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality236302136974450119.prop : 1 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality11711550762557408112.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality236302136974450119.prop' '--nowitness'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...307
Loading property file /tmp/ReachabilityCardinality236302136974450119.prop.
Parikh walk visited 0 properties in 38759 ms.
Support contains 6 out of 104 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 104/104 places, 263/263 transitions.
Applied a total of 0 rules in 16 ms. Remains 104 /104 variables (removed 0) and now considering 263/263 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 16 ms. Remains : 104/104 places, 263/263 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 104/104 places, 263/263 transitions.
Applied a total of 0 rules in 6 ms. Remains 104 /104 variables (removed 0) and now considering 263/263 (removed 0) transitions.
[2025-06-01 16:39:52] [INFO ] Flow matrix only has 166 transitions (discarded 97 similar events)
[2025-06-01 16:39:52] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-01 16:39:52] [INFO ] Implicit Places using invariants in 140 ms returned []
[2025-06-01 16:39:52] [INFO ] Flow matrix only has 166 transitions (discarded 97 similar events)
[2025-06-01 16:39:52] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-01 16:39:52] [INFO ] State equation strengthened by 27 read => feed constraints.
[2025-06-01 16:39:53] [INFO ] Implicit Places using invariants and state equation in 297 ms returned []
Implicit Place search using SMT with State Equation took 439 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-01 16:39:53] [INFO ] Redundant transitions in 2 ms returned []
Running 261 sub problems to find dead transitions.
[2025-06-01 16:39:53] [INFO ] Flow matrix only has 166 transitions (discarded 97 similar events)
[2025-06-01 16:39:53] [INFO ] Invariant cache hit.
[2025-06-01 16:39:53] [INFO ] State equation strengthened by 27 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/104 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 261 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/104 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 261 unsolved
At refinement iteration 2 (OVERLAPS) 166/270 variables, 104/107 constraints. Problems are: Problem set: 0 solved, 261 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/270 variables, 27/134 constraints. Problems are: Problem set: 0 solved, 261 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/270 variables, 0/134 constraints. Problems are: Problem set: 0 solved, 261 unsolved
At refinement iteration 5 (OVERLAPS) 0/270 variables, 0/134 constraints. Problems are: Problem set: 0 solved, 261 unsolved
No progress, stopping.
After SMT solving in domain Real declared 270/270 variables, and 134 constraints, problems are : Problem set: 0 solved, 261 unsolved in 6808 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 104/104 constraints, ReadFeed: 27/27 constraints, PredecessorRefiner: 261/261 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 261 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/104 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 261 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/104 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 261 unsolved
At refinement iteration 2 (OVERLAPS) 166/270 variables, 104/107 constraints. Problems are: Problem set: 0 solved, 261 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/270 variables, 27/134 constraints. Problems are: Problem set: 0 solved, 261 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/270 variables, 261/395 constraints. Problems are: Problem set: 0 solved, 261 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:40:06] [INFO ] Deduced a trap along path composed of 3 places in 22 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:40:06] [INFO ] Deduced a trap along path composed of 3 places in 18 ms of which 1 ms to minimize.
At refinement iteration 5 (INCLUDED_ONLY) 0/270 variables, 2/397 constraints. Problems are: Problem set: 0 solved, 261 unsolved
Detected timeout of ITS tools.
At refinement iteration 6 (INCLUDED_ONLY) 0/270 variables, 0/397 constraints. Problems are: Problem set: 0 solved, 261 unsolved
At refinement iteration 7 (OVERLAPS) 0/270 variables, 0/397 constraints. Problems are: Problem set: 0 solved, 261 unsolved
No progress, stopping.
After SMT solving in domain Int declared 270/270 variables, and 397 constraints, problems are : Problem set: 0 solved, 261 unsolved in 30009 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 104/104 constraints, ReadFeed: 27/27 constraints, PredecessorRefiner: 261/261 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 2/2 constraints]
After SMT, in 36939ms problems are : Problem set: 0 solved, 261 unsolved
Search for dead transitions found 0 dead transitions in 36941ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 37398 ms. Remains : 104/104 places, 263/263 transitions.
FORMULA FunctionPointer-PT-b064-UpperBounds-09 64 TECHNIQUES REACHABILITY_MAX
Current structural bounds on expressions (After reachability solving 1 queries.) : Max Seen:[159, 86, 90, 175, 74, 179] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Starting property specific reduction for FunctionPointer-PT-b064-UpperBounds-02
Current structural bounds on expressions (Initially) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (Adding known information on max bounds.) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (Before main loop) : Max Seen:[0] Max Struct:[+inf]
[2025-06-01 16:40:29] [INFO ] Flow matrix only has 166 transitions (discarded 97 similar events)
[2025-06-01 16:40:29] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[+inf]
RANDOM walk for 10000 steps (2 resets) in 24 ms. (400 steps per ms)
BEST_FIRST walk for 10001 steps (2 resets) in 11 ms. (833 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0] Max Struct:[+inf]
[2025-06-01 16:40:30] [INFO ] Flow matrix only has 166 transitions (discarded 97 similar events)
[2025-06-01 16:40:30] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-01 16:40:30] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 16:40:30] [INFO ] [Real]Absence check using state equation in 86 ms returned sat
[2025-06-01 16:40:30] [INFO ] State equation strengthened by 27 read => feed constraints.
[2025-06-01 16:40:30] [INFO ] [Real]Added 27 Read/Feed constraints in 10 ms returned sat
[2025-06-01 16:40:30] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-01 16:40:30] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 16:40:30] [INFO ] [Nat]Absence check using state equation in 77 ms returned sat
[2025-06-01 16:40:30] [INFO ] [Nat]Added 27 Read/Feed constraints in 9 ms returned sat
[2025-06-01 16:40:30] [INFO ] Computed and/alt/rep : 67/333/63 causal constraints (skipped 101 transitions) in 21 ms.
[2025-06-01 16:40:30] [INFO ] Added : 23 causal constraints over 6 iterations in 142 ms. Result :sat
Minimization took 50 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[1] Max Struct:[+inf]
Support contains 1 out of 104 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 104/104 places, 263/263 transitions.
Graph (complete) has 439 edges and 104 vertex of which 101 are kept as prefixes of interest. Removing 3 places using SCC suffix rule.1 ms
Discarding 3 places :
Also discarding 0 output transitions
Drop transitions (Empty/Sink Transition effects.) removed 5 transitions
Reduce isomorphic transitions removed 5 transitions.
Iterating post reduction 0 with 5 rules applied. Total rules applied 6 place count 101 transition count 258
Discarding 4 places :
Symmetric choice reduction at 1 with 4 rule applications. Total rules 10 place count 97 transition count 244
Iterating global reduction 1 with 4 rules applied. Total rules applied 14 place count 97 transition count 244
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 1 with 2 rules applied. Total rules applied 16 place count 97 transition count 242
Discarding 5 places :
Symmetric choice reduction at 2 with 5 rule applications. Total rules 21 place count 92 transition count 232
Iterating global reduction 2 with 5 rules applied. Total rules applied 26 place count 92 transition count 232
Ensure Unique test removed 4 transitions
Reduce isomorphic transitions removed 4 transitions.
Iterating post reduction 2 with 4 rules applied. Total rules applied 30 place count 92 transition count 228
Discarding 2 places :
Symmetric choice reduction at 3 with 2 rule applications. Total rules 32 place count 90 transition count 222
Iterating global reduction 3 with 2 rules applied. Total rules applied 34 place count 90 transition count 222
Discarding 2 places :
Symmetric choice reduction at 3 with 2 rule applications. Total rules 36 place count 88 transition count 218
Iterating global reduction 3 with 2 rules applied. Total rules applied 38 place count 88 transition count 218
Discarding 2 places :
Symmetric choice reduction at 3 with 2 rule applications. Total rules 40 place count 86 transition count 214
Iterating global reduction 3 with 2 rules applied. Total rules applied 42 place count 86 transition count 214
Discarding 2 places :
Symmetric choice reduction at 3 with 2 rule applications. Total rules 44 place count 84 transition count 210
Iterating global reduction 3 with 2 rules applied. Total rules applied 46 place count 84 transition count 210
Discarding 1 places :
Symmetric choice reduction at 3 with 1 rule applications. Total rules 47 place count 83 transition count 208
Iterating global reduction 3 with 1 rules applied. Total rules applied 48 place count 83 transition count 208
Discarding 1 places :
Symmetric choice reduction at 3 with 1 rule applications. Total rules 49 place count 82 transition count 206
Iterating global reduction 3 with 1 rules applied. Total rules applied 50 place count 82 transition count 206
Discarding 1 places :
Symmetric choice reduction at 3 with 1 rule applications. Total rules 51 place count 81 transition count 204
Iterating global reduction 3 with 1 rules applied. Total rules applied 52 place count 81 transition count 204
Applied a total of 52 rules in 37 ms. Remains 81 /104 variables (removed 23) and now considering 204/263 (removed 59) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 38 ms. Remains : 81/104 places, 204/263 transitions.
[2025-06-01 16:40:30] [INFO ] Flow matrix only has 125 transitions (discarded 79 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
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 61 ms. (steps per millisecond=163 ) properties (out of 1) seen :[4]
Current structural bounds on expressions (after cover walk) : Max Seen:[4] Max Struct:[+inf]
[2025-06-01 16:40:30] [INFO ] Flow matrix only has 125 transitions (discarded 79 similar events)
// Phase 1: matrix 125 rows 81 cols
[2025-06-01 16:40:30] [INFO ] Computed 3 invariants in 1 ms
Current structural bounds on expressions (after invariants) : Max Seen:[4] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 1447 ms. (690 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 833 ms. (1199 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[635] Max Struct:[+inf]
[2025-06-01 16:40:33] [INFO ] Flow matrix only has 125 transitions (discarded 79 similar events)
[2025-06-01 16:40:33] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:40:33] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 16:40:33] [INFO ] [Real]Absence check using state equation in 61 ms returned sat
[2025-06-01 16:40:33] [INFO ] State equation strengthened by 18 read => feed constraints.
[2025-06-01 16:40:33] [INFO ] [Real]Added 18 Read/Feed constraints in 8 ms returned sat
[2025-06-01 16:40:33] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:40:33] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 16:40:33] [INFO ] [Nat]Absence check using state equation in 60 ms returned sat
[2025-06-01 16:40:33] [INFO ] [Nat]Added 18 Read/Feed constraints in 8 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:40:33] [INFO ] Deduced a trap composed of 14 places in 127 ms of which 14 ms to minimize.
[2025-06-01 16:40:33] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 145 ms
[2025-06-01 16:40:33] [INFO ] Computed and/alt/rep : 59/193/53 causal constraints (skipped 70 transitions) in 16 ms.
[2025-06-01 16:40:33] [INFO ] Added : 13 causal constraints over 3 iterations in 88 ms. Result :sat
Minimization took 49 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[635] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[635] 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 4 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.
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 16:40:36] [INFO ] Flow matrix only has 125 transitions (discarded 79 similar events)
[2025-06-01 16:40:36] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-01 16:40:36] [INFO ] Implicit Places using invariants in 106 ms returned []
[2025-06-01 16:40:36] [INFO ] Flow matrix only has 125 transitions (discarded 79 similar events)
[2025-06-01 16:40:36] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-01 16:40:36] [INFO ] State equation strengthened by 18 read => feed constraints.
[2025-06-01 16:40:36] [INFO ] Implicit Places using invariants and state equation in 257 ms returned []
Implicit Place search using SMT with State Equation took 380 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-01 16:40:36] [INFO ] Redundant transitions in 1 ms returned []
Running 202 sub problems to find dead transitions.
[2025-06-01 16:40:36] [INFO ] Flow matrix only has 125 transitions (discarded 79 similar events)
[2025-06-01 16:40:36] [INFO ] Invariant cache hit.
[2025-06-01 16:40:36] [INFO ] State equation strengthened by 18 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
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 9667 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, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 202 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
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
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:40:52] [INFO ] Deduced a trap along path composed of 3 places in 35 ms of which 2 ms to minimize.
At refinement iteration 5 (INCLUDED_ONLY) 0/206 variables, 1/305 constraints. Problems are: Problem set: 0 solved, 202 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/206 variables, 0/305 constraints. Problems are: Problem set: 0 solved, 202 unsolved
At refinement iteration 7 (OVERLAPS) 0/206 variables, 0/305 constraints. Problems are: Problem set: 0 solved, 202 unsolved
No progress, stopping.
After SMT solving in domain Int declared 206/206 variables, and 305 constraints, problems are : Problem set: 0 solved, 202 unsolved in 23717 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, Known Traps Along Path: 1/1 constraints]
After SMT, in 33440ms problems are : Problem set: 0 solved, 202 unsolved
Search for dead transitions found 0 dead transitions in 33442ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 33832 ms. Remains : 81/81 places, 204/204 transitions.
[2025-06-01 16:41:10] [INFO ] Flow matrix only has 125 transitions (discarded 79 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
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 38 ms. (steps per millisecond=263 ) properties (out of 1) seen :[6]
Current structural bounds on expressions (after cover walk) : Max Seen:[635] Max Struct:[+inf]
[2025-06-01 16:41:10] [INFO ] Flow matrix only has 125 transitions (discarded 79 similar events)
[2025-06-01 16:41:10] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[635] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 1291 ms. (773 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 850 ms. (1175 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[636] Max Struct:[+inf]
[2025-06-01 16:41:12] [INFO ] Flow matrix only has 125 transitions (discarded 79 similar events)
[2025-06-01 16:41:12] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:41:12] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 16:41:12] [INFO ] [Real]Absence check using state equation in 60 ms returned sat
[2025-06-01 16:41:12] [INFO ] State equation strengthened by 18 read => feed constraints.
[2025-06-01 16:41:12] [INFO ] [Real]Added 18 Read/Feed constraints in 7 ms returned sat
[2025-06-01 16:41:12] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:41:12] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 16:41:12] [INFO ] [Nat]Absence check using state equation in 45 ms returned sat
[2025-06-01 16:41:12] [INFO ] [Nat]Added 18 Read/Feed constraints in 6 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:41:12] [INFO ] Deduced a trap composed of 14 places in 98 ms of which 8 ms to minimize.
[2025-06-01 16:41:12] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 115 ms
[2025-06-01 16:41:12] [INFO ] Computed and/alt/rep : 59/193/53 causal constraints (skipped 70 transitions) in 9 ms.
[2025-06-01 16:41:12] [INFO ] Added : 13 causal constraints over 3 iterations in 58 ms. Result :sat
Minimization took 31 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[636] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[636] 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 4 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.
Starting structural reductions in REACHABILITY mode, iteration 0 : 81/81 places, 204/204 transitions.
Applied a total of 0 rules in 8 ms. Remains 81 /81 variables (removed 0) and now considering 204/204 (removed 0) transitions.
[2025-06-01 16:41:15] [INFO ] Flow matrix only has 125 transitions (discarded 79 similar events)
[2025-06-01 16:41:15] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-01 16:41:15] [INFO ] Implicit Places using invariants in 121 ms returned []
[2025-06-01 16:41:15] [INFO ] Flow matrix only has 125 transitions (discarded 79 similar events)
[2025-06-01 16:41:15] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-01 16:41:15] [INFO ] State equation strengthened by 18 read => feed constraints.
[2025-06-01 16:41:15] [INFO ] Implicit Places using invariants and state equation in 254 ms returned []
Implicit Place search using SMT with State Equation took 421 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-01 16:41:15] [INFO ] Redundant transitions in 1 ms returned []
Running 202 sub problems to find dead transitions.
[2025-06-01 16:41:15] [INFO ] Flow matrix only has 125 transitions (discarded 79 similar events)
[2025-06-01 16:41:15] [INFO ] Invariant cache hit.
[2025-06-01 16:41:15] [INFO ] State equation strengthened by 18 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
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 7287 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, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 202 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
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
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:41:27] [INFO ] Deduced a trap along path composed of 3 places in 38 ms of which 1 ms to minimize.
At refinement iteration 5 (INCLUDED_ONLY) 0/206 variables, 1/305 constraints. Problems are: Problem set: 0 solved, 202 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/206 variables, 0/305 constraints. Problems are: Problem set: 0 solved, 202 unsolved
At refinement iteration 7 (OVERLAPS) 0/206 variables, 0/305 constraints. Problems are: Problem set: 0 solved, 202 unsolved
No progress, stopping.
After SMT solving in domain Int declared 206/206 variables, and 305 constraints, problems are : Problem set: 0 solved, 202 unsolved in 19480 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, Known Traps Along Path: 1/1 constraints]
After SMT, in 26820ms problems are : Problem set: 0 solved, 202 unsolved
Search for dead transitions found 0 dead transitions in 26821ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 27273 ms. Remains : 81/81 places, 204/204 transitions.
[2025-06-01 16:41:42] [INFO ] Flow matrix only has 125 transitions (discarded 79 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
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 38 ms. (steps per millisecond=263 ) properties (out of 1) seen :[3]
Current structural bounds on expressions (after cover walk) : Max Seen:[636] Max Struct:[+inf]
[2025-06-01 16:41:42] [INFO ] Flow matrix only has 125 transitions (discarded 79 similar events)
[2025-06-01 16:41:42] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[636] Max Struct:[+inf]
RANDOM walk for 1000001 steps (2 resets) in 1401 ms. (713 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 877 ms. (1138 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[662] Max Struct:[+inf]
[2025-06-01 16:41:44] [INFO ] Flow matrix only has 125 transitions (discarded 79 similar events)
[2025-06-01 16:41:44] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:41:44] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 16:41:44] [INFO ] [Real]Absence check using state equation in 50 ms returned sat
[2025-06-01 16:41:44] [INFO ] State equation strengthened by 18 read => feed constraints.
[2025-06-01 16:41:44] [INFO ] [Real]Added 18 Read/Feed constraints in 6 ms returned sat
[2025-06-01 16:41:44] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:41:44] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 16:41:45] [INFO ] [Nat]Absence check using state equation in 51 ms returned sat
[2025-06-01 16:41:45] [INFO ] [Nat]Added 18 Read/Feed constraints in 5 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:41:45] [INFO ] Deduced a trap composed of 14 places in 192 ms of which 9 ms to minimize.
[2025-06-01 16:41:45] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 204 ms
[2025-06-01 16:41:45] [INFO ] Computed and/alt/rep : 59/193/53 causal constraints (skipped 70 transitions) in 19 ms.
[2025-06-01 16:41:45] [INFO ] Added : 13 causal constraints over 3 iterations in 91 ms. Result :sat
Minimization took 31 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[662] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[662] 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 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 3 ms. Remains 81 /81 variables (removed 0) and now considering 204/204 (removed 0) transitions.
[2025-06-01 16:41:47] [INFO ] Flow matrix only has 125 transitions (discarded 79 similar events)
[2025-06-01 16:41:47] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-01 16:41:47] [INFO ] Implicit Places using invariants in 121 ms returned []
[2025-06-01 16:41:47] [INFO ] Flow matrix only has 125 transitions (discarded 79 similar events)
[2025-06-01 16:41:47] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-01 16:41:47] [INFO ] State equation strengthened by 18 read => feed constraints.
[2025-06-01 16:41:48] [INFO ] Implicit Places using invariants and state equation in 259 ms returned []
Implicit Place search using SMT with State Equation took 428 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-01 16:41:48] [INFO ] Redundant transitions in 0 ms returned []
Running 202 sub problems to find dead transitions.
[2025-06-01 16:41:48] [INFO ] Flow matrix only has 125 transitions (discarded 79 similar events)
[2025-06-01 16:41:48] [INFO ] Invariant cache hit.
[2025-06-01 16:41:48] [INFO ] State equation strengthened by 18 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
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 7163 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, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 202 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
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
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:41:59] [INFO ] Deduced a trap along path composed of 3 places in 31 ms of which 0 ms to minimize.
At refinement iteration 5 (INCLUDED_ONLY) 0/206 variables, 1/305 constraints. Problems are: Problem set: 0 solved, 202 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/206 variables, 0/305 constraints. Problems are: Problem set: 0 solved, 202 unsolved
At refinement iteration 7 (OVERLAPS) 0/206 variables, 0/305 constraints. Problems are: Problem set: 0 solved, 202 unsolved
No progress, stopping.
After SMT solving in domain Int declared 206/206 variables, and 305 constraints, problems are : Problem set: 0 solved, 202 unsolved in 19470 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, Known Traps Along Path: 1/1 constraints]
After SMT, in 26691ms problems are : Problem set: 0 solved, 202 unsolved
Search for dead transitions found 0 dead transitions in 26692ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 27132 ms. Remains : 81/81 places, 204/204 transitions.
[2025-06-01 16:42:14] [INFO ] Flow matrix only has 125 transitions (discarded 79 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
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 35 ms. (steps per millisecond=285 ) properties (out of 1) seen :[7]
Current structural bounds on expressions (after cover walk) : Max Seen:[662] Max Struct:[+inf]
[2025-06-01 16:42:14] [INFO ] Flow matrix only has 125 transitions (discarded 79 similar events)
[2025-06-01 16:42:14] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[662] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 1434 ms. (696 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 856 ms. (1166 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[662] Max Struct:[+inf]
[2025-06-01 16:42:17] [INFO ] Flow matrix only has 125 transitions (discarded 79 similar events)
[2025-06-01 16:42:17] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:42:17] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 16:42:17] [INFO ] [Real]Absence check using state equation in 64 ms returned sat
[2025-06-01 16:42:17] [INFO ] State equation strengthened by 18 read => feed constraints.
[2025-06-01 16:42:17] [INFO ] [Real]Added 18 Read/Feed constraints in 5 ms returned sat
[2025-06-01 16:42:17] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:42:17] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 16:42:17] [INFO ] [Nat]Absence check using state equation in 45 ms returned sat
[2025-06-01 16:42:17] [INFO ] [Nat]Added 18 Read/Feed constraints in 19 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:42:17] [INFO ] Deduced a trap composed of 14 places in 94 ms of which 9 ms to minimize.
[2025-06-01 16:42:17] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 124 ms
[2025-06-01 16:42:17] [INFO ] Computed and/alt/rep : 59/193/53 causal constraints (skipped 70 transitions) in 10 ms.
[2025-06-01 16:42:17] [INFO ] Added : 13 causal constraints over 3 iterations in 56 ms. Result :sat
Minimization took 46 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[662] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[662] 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 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 3 ms. Remains 81 /81 variables (removed 0) and now considering 204/204 (removed 0) transitions.
[2025-06-01 16:42:19] [INFO ] Flow matrix only has 125 transitions (discarded 79 similar events)
[2025-06-01 16:42:19] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-01 16:42:20] [INFO ] Implicit Places using invariants in 113 ms returned []
[2025-06-01 16:42:20] [INFO ] Flow matrix only has 125 transitions (discarded 79 similar events)
[2025-06-01 16:42:20] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-01 16:42:20] [INFO ] State equation strengthened by 18 read => feed constraints.
[2025-06-01 16:42:20] [INFO ] Implicit Places using invariants and state equation in 258 ms returned []
Implicit Place search using SMT with State Equation took 404 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-01 16:42:20] [INFO ] Redundant transitions in 1 ms returned []
Running 202 sub problems to find dead transitions.
[2025-06-01 16:42:20] [INFO ] Flow matrix only has 125 transitions (discarded 79 similar events)
[2025-06-01 16:42:20] [INFO ] Invariant cache hit.
[2025-06-01 16:42:20] [INFO ] State equation strengthened by 18 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
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 7216 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, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 202 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
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
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:42:31] [INFO ] Deduced a trap along path composed of 3 places in 34 ms of which 0 ms to minimize.
At refinement iteration 5 (INCLUDED_ONLY) 0/206 variables, 1/305 constraints. Problems are: Problem set: 0 solved, 202 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/206 variables, 0/305 constraints. Problems are: Problem set: 0 solved, 202 unsolved
At refinement iteration 7 (OVERLAPS) 0/206 variables, 0/305 constraints. Problems are: Problem set: 0 solved, 202 unsolved
No progress, stopping.
After SMT solving in domain Int declared 206/206 variables, and 305 constraints, problems are : Problem set: 0 solved, 202 unsolved in 19320 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, Known Traps Along Path: 1/1 constraints]
After SMT, in 26589ms problems are : Problem set: 0 solved, 202 unsolved
Search for dead transitions found 0 dead transitions in 26591ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 27005 ms. Remains : 81/81 places, 204/204 transitions.
[2025-06-01 16:42:46] [INFO ] Flow matrix only has 125 transitions (discarded 79 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
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 35 ms. (steps per millisecond=285 ) properties (out of 1) seen :[4]
Current structural bounds on expressions (after cover walk) : Max Seen:[662] Max Struct:[+inf]
[2025-06-01 16:42:47] [INFO ] Flatten gal took : 34 ms
[2025-06-01 16:42:47] [INFO ] Flatten gal took : 38 ms
RANDOM walk for 40005 steps (8 resets) in 238 ms. (167 steps per ms) remains 1/1 properties
[2025-06-01 16:42:47] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality13001622621310843617.gal : 8 ms
[2025-06-01 16:42:47] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality12857164202941581769.prop : 0 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality13001622621310843617.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality12857164202941581769.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...330
BEST_FIRST walk for 40003 steps (8 resets) in 65 ms. (606 steps per ms) remains 1/1 properties
Loading property file /tmp/ReachabilityCardinality12857164202941581769.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 1040
SDD proceeding with computation,1 properties remain. new max is 16
SDD size :1040 after 155244
SDD proceeding with computation,1 properties remain. new max is 32
SDD size :155244 after 1.77406e+08
Interrupted probabilistic random walk after 1345693 steps, run timeout after 3001 ms. (steps per millisecond=448 ) properties seen :0 out of 1
Probabilistic random walk after 1345693 steps, saw 837644 distinct states, run finished after 3001 ms. (steps per millisecond=448 ) properties seen :0
[2025-06-01 16:42:50] [INFO ] Flow matrix only has 125 transitions (discarded 79 similar events)
[2025-06-01 16:42:50] [INFO ] Invariant cache hit.
[2025-06-01 16:42:50] [INFO ] State equation strengthened by 18 read => feed constraints.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 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 159 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, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 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
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:42:50] [INFO ] Deduced a trap along path composed of 3 places in 38 ms of which 0 ms to minimize.
At refinement iteration 17 (INCLUDED_ONLY) 0/205 variables, 1/103 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/205 variables, 0/103 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 1/206 variables, 1/104 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/206 variables, 0/104 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 0/206 variables, 0/104 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 206/206 variables, and 104 constraints, problems are : Problem set: 0 solved, 1 unsolved in 232 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, Known Traps Along Path: 1/1 constraints]
After SMT, in 415ms problems are : Problem set: 0 solved, 1 unsolved
SDD proceeding with computation,1 properties remain. new max is 64
Parikh walk visited 0 properties in 1314 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 4 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.
SDD size :1.77406e+08 after 2.78305e+12
RANDOM walk for 40001 steps (8 resets) in 95 ms. (416 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (8 resets) in 45 ms. (869 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1465027 steps, run timeout after 3001 ms. (steps per millisecond=488 ) properties seen :0 out of 1
Probabilistic random walk after 1465027 steps, saw 911924 distinct states, run finished after 3003 ms. (steps per millisecond=487 ) properties seen :0
[2025-06-01 16:42:55] [INFO ] Flow matrix only has 125 transitions (discarded 79 similar events)
[2025-06-01 16:42:55] [INFO ] Invariant cache hit.
[2025-06-01 16:42:55] [INFO ] State equation strengthened by 18 read => feed constraints.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 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 201 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, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 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
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:42:55] [INFO ] Deduced a trap along path composed of 3 places in 22 ms of which 1 ms to minimize.
At refinement iteration 17 (INCLUDED_ONLY) 0/205 variables, 1/103 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/205 variables, 0/103 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 1/206 variables, 1/104 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/206 variables, 0/104 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 0/206 variables, 0/104 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 206/206 variables, and 104 constraints, problems are : Problem set: 0 solved, 1 unsolved in 370 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, Known Traps Along Path: 1/1 constraints]
After SMT, in 587ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 1400 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 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 16:42:57] [INFO ] Flow matrix only has 125 transitions (discarded 79 similar events)
[2025-06-01 16:42:57] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-01 16:42:57] [INFO ] Implicit Places using invariants in 135 ms returned []
[2025-06-01 16:42:57] [INFO ] Flow matrix only has 125 transitions (discarded 79 similar events)
[2025-06-01 16:42:57] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-01 16:42:57] [INFO ] State equation strengthened by 18 read => feed constraints.
[2025-06-01 16:42:57] [INFO ] Implicit Places using invariants and state equation in 365 ms returned []
Implicit Place search using SMT with State Equation took 502 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-01 16:42:57] [INFO ] Redundant transitions in 1 ms returned []
Running 202 sub problems to find dead transitions.
[2025-06-01 16:42:57] [INFO ] Flow matrix only has 125 transitions (discarded 79 similar events)
[2025-06-01 16:42:57] [INFO ] Invariant cache hit.
[2025-06-01 16:42:57] [INFO ] State equation strengthened by 18 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
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 7353 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, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 202 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
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
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:43:09] [INFO ] Deduced a trap along path composed of 3 places in 21 ms of which 1 ms to minimize.
At refinement iteration 5 (INCLUDED_ONLY) 0/206 variables, 1/305 constraints. Problems are: Problem set: 0 solved, 202 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/206 variables, 0/305 constraints. Problems are: Problem set: 0 solved, 202 unsolved
SDD proceeding with computation,1 properties remain. new max is 128
SDD size :2.78305e+12 after 8.75387e+17
At refinement iteration 7 (OVERLAPS) 0/206 variables, 0/305 constraints. Problems are: Problem set: 0 solved, 202 unsolved
No progress, stopping.
After SMT solving in domain Int declared 206/206 variables, and 305 constraints, problems are : Problem set: 0 solved, 202 unsolved in 19863 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, Known Traps Along Path: 1/1 constraints]
After SMT, in 27271ms problems are : Problem set: 0 solved, 202 unsolved
Search for dead transitions found 0 dead transitions in 27272ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 27784 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 1 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 30 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 16:43:24] [INFO ] Computed 3 invariants in 0 ms
Starting Z3 with timeout 450.0 s and query timeout 45000.0 ms
[2025-06-01 16:43:24] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 16:43:24] [INFO ] After 16ms SMT Verify possible using state equation in real domain returned unsat :0 sat :1
[2025-06-01 16:43:24] [INFO ] State equation strengthened by 2 read => feed constraints.
[2025-06-01 16:43:24] [INFO ] After 5ms SMT Verify possible using 2 Read/Feed constraints in real domain returned unsat :0 sat :0 real:1
[2025-06-01 16:43:24] [INFO ] After 53ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
Starting Z3 with timeout 450.0 s and query timeout 45000.0 ms
[2025-06-01 16:43:24] [INFO ] [Nat]Absence check using 3 positive place invariants in 1 ms returned sat
[2025-06-01 16:43:24] [INFO ] After 16ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
[2025-06-01 16:43:24] [INFO ] After 4ms SMT Verify possible using 2 Read/Feed constraints in natural domain returned unsat :0 sat :1
TRAPS : Iteration 0
[2025-06-01 16:43:24] [INFO ] After 9ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
[2025-06-01 16:43:24] [INFO ] After 56ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
[2025-06-01 16:43:24] [INFO ] Flatten gal took : 8 ms
[2025-06-01 16:43:24] [INFO ] Flatten gal took : 3 ms
[2025-06-01 16:43:24] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality18126240614058326919.gal : 1 ms
[2025-06-01 16:43:24] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality2853036958258901090.prop : 0 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality18126240614058326919.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality2853036958258901090.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...329
Loading property file /tmp/ReachabilityCardinality2853036958258901090.prop.
SDD proceeding with computation,1 properties remain. new max is 4
SDD size :1 after 5
SDD proceeding with computation,1 properties remain. new max is 8
SDD size :5 after 10
SDD proceeding with computation,1 properties remain. new max is 16
SDD size :10 after 19
SDD proceeding with computation,1 properties remain. new max is 32
SDD size :19 after 36
SDD proceeding with computation,1 properties remain. new max is 64
SDD size :36 after 315
SDD proceeding with computation,1 properties remain. new max is 128
SDD size :315 after 74116
SDD proceeding with computation,1 properties remain. new max is 256
SDD size :74116 after 2.14714e+08
SDD proceeding with computation,1 properties remain. new max is 512
SDD size :2.14714e+08 after 1.77591e+09
SDD proceeding with computation,1 properties remain. new max is 1024
SDD size :1.77591e+09 after 9.4111e+09
SDD proceeding with computation,1 properties remain. new max is 2048
SDD size :9.4111e+09 after 4.27012e+10
Detected timeout of ITS tools.
[2025-06-01 16:43:37] [INFO ] Flatten gal took : 25 ms
[2025-06-01 16:43:37] [INFO ] Applying decomposition
[2025-06-01 16:43:37] [INFO ] Flatten gal took : 14 ms
Converted graph to binary with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/convert-linux64' '-i' '/tmp/graph16715091987931874202.txt' '-o' '/tmp/graph16715091987931874202.bin' '-w' '/tmp/graph16715091987931874202.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/louvain-linux64' '/tmp/graph16715091987931874202.bin' '-l' '-1' '-v' '-w' '/tmp/graph16715091987931874202.weights' '-q' '0' '-e' '0.001'
[2025-06-01 16:43:37] [INFO ] Decomposing Gal with order
[2025-06-01 16:43:37] [INFO ] Rewriting arrays to variables to allow decomposition.
[2025-06-01 16:43:37] [INFO ] Removed a total of 347 redundant transitions.
[2025-06-01 16:43:37] [INFO ] Flatten gal took : 27 ms
[2025-06-01 16:43:37] [INFO ] Fuse similar labels procedure discarded/fused a total of 108 labels/synchronizations in 11 ms.
[2025-06-01 16:43:37] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality10749889947491686486.gal : 21 ms
[2025-06-01 16:43:37] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality3155893441147825181.prop : 0 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality10749889947491686486.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality3155893441147825181.prop' '--nowitness'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...308
Loading property file /tmp/ReachabilityCardinality3155893441147825181.prop.
Detected timeout of ITS tools.
[2025-06-01 16:43:40] [INFO ] Flatten gal took : 3 ms
[2025-06-01 16:43:40] [INFO ] Applying decomposition
[2025-06-01 16:43:40] [INFO ] Flatten gal took : 11 ms
Converted graph to binary with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/convert-linux64' '-i' '/tmp/graph2135961388744893778.txt' '-o' '/tmp/graph2135961388744893778.bin' '-w' '/tmp/graph2135961388744893778.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/louvain-linux64' '/tmp/graph2135961388744893778.bin' '-l' '-1' '-v' '-w' '/tmp/graph2135961388744893778.weights' '-q' '0' '-e' '0.001'
[2025-06-01 16:43:40] [INFO ] Decomposing Gal with order
[2025-06-01 16:43:40] [INFO ] Rewriting arrays to variables to allow decomposition.
[2025-06-01 16:43:40] [INFO ] Removed a total of 42 redundant transitions.
[2025-06-01 16:43:40] [INFO ] Flatten gal took : 14 ms
[2025-06-01 16:43:40] [INFO ] Fuse similar labels procedure discarded/fused a total of 4 labels/synchronizations in 1 ms.
[2025-06-01 16:43:40] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality11190984011228485312.gal : 1 ms
[2025-06-01 16:43:40] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality6186328617249137432.prop : 0 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality11190984011228485312.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality6186328617249137432.prop' '--nowitness'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...308
Loading property file /tmp/ReachabilityCardinality6186328617249137432.prop.
SDD proceeding with computation,1 properties remain. new max is 4
SDD size :1 after 5
SDD proceeding with computation,1 properties remain. new max is 8
SDD size :5 after 10
SDD proceeding with computation,1 properties remain. new max is 16
SDD size :10 after 19
SDD proceeding with computation,1 properties remain. new max is 32
SDD size :19 after 36
SDD proceeding with computation,1 properties remain. new max is 64
SDD size :36 after 315
Detected timeout of ITS tools.
Over-approximation ignoring read arcs solved 0 properties in 30337 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:[662] Max Struct:[+inf]
Ending property specific reduction for FunctionPointer-PT-b064-UpperBounds-02 in 205171 ms.
Starting property specific reduction for FunctionPointer-PT-b064-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 16:43:55] [INFO ] Flow matrix only has 166 transitions (discarded 97 similar events)
// Phase 1: matrix 166 rows 104 cols
[2025-06-01 16:43:55] [INFO ] Computed 3 invariants in 1 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[+inf]
RANDOM walk for 10016 steps (2 resets) in 16 ms. (589 steps per ms)
BEST_FIRST walk for 10001 steps (2 resets) in 14 ms. (666 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[9] Max Struct:[+inf]
[2025-06-01 16:43:55] [INFO ] Flow matrix only has 166 transitions (discarded 97 similar events)
[2025-06-01 16:43:55] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-01 16:43:55] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2025-06-01 16:43:55] [INFO ] [Real]Absence check using state equation in 93 ms returned sat
[2025-06-01 16:43:55] [INFO ] State equation strengthened by 27 read => feed constraints.
[2025-06-01 16:43:55] [INFO ] [Real]Added 27 Read/Feed constraints in 8 ms returned sat
[2025-06-01 16:43:55] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-01 16:43:55] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 16:43:55] [INFO ] [Nat]Absence check using state equation in 62 ms returned sat
[2025-06-01 16:43:55] [INFO ] [Nat]Added 27 Read/Feed constraints in 7 ms returned sat
[2025-06-01 16:43:55] [INFO ] Computed and/alt/rep : 67/333/63 causal constraints (skipped 101 transitions) in 13 ms.
[2025-06-01 16:43:55] [INFO ] Added : 37 causal constraints over 9 iterations in 153 ms. Result :sat
Minimization took 54 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[9] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[9] Max Struct:[+inf]
Support contains 1 out of 104 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 104/104 places, 263/263 transitions.
Graph (complete) has 439 edges and 104 vertex of which 101 are kept as prefixes of interest. Removing 3 places using SCC suffix rule.0 ms
Discarding 3 places :
Also discarding 0 output transitions
Drop transitions (Empty/Sink Transition effects.) removed 5 transitions
Reduce isomorphic transitions removed 5 transitions.
Iterating post reduction 0 with 5 rules applied. Total rules applied 6 place count 101 transition count 258
Discarding 4 places :
Symmetric choice reduction at 1 with 4 rule applications. Total rules 10 place count 97 transition count 248
Iterating global reduction 1 with 4 rules applied. Total rules applied 14 place count 97 transition count 248
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 1 with 2 rules applied. Total rules applied 16 place count 97 transition count 246
Discarding 5 places :
Symmetric choice reduction at 2 with 5 rule applications. Total rules 21 place count 92 transition count 234
Iterating global reduction 2 with 5 rules applied. Total rules applied 26 place count 92 transition count 234
Ensure Unique test removed 8 transitions
Reduce isomorphic transitions removed 8 transitions.
Iterating post reduction 2 with 8 rules applied. Total rules applied 34 place count 92 transition count 226
Discarding 2 places :
Symmetric choice reduction at 3 with 2 rule applications. Total rules 36 place count 90 transition count 222
Iterating global reduction 3 with 2 rules applied. Total rules applied 38 place count 90 transition count 222
Discarding 2 places :
Symmetric choice reduction at 3 with 2 rule applications. Total rules 40 place count 88 transition count 218
Iterating global reduction 3 with 2 rules applied. Total rules applied 42 place count 88 transition count 218
Discarding 2 places :
Symmetric choice reduction at 3 with 2 rule applications. Total rules 44 place count 86 transition count 214
Iterating global reduction 3 with 2 rules applied. Total rules applied 46 place count 86 transition count 214
Discarding 2 places :
Symmetric choice reduction at 3 with 2 rule applications. Total rules 48 place count 84 transition count 210
Iterating global reduction 3 with 2 rules applied. Total rules applied 50 place count 84 transition count 210
Discarding 1 places :
Symmetric choice reduction at 3 with 1 rule applications. Total rules 51 place count 83 transition count 208
Iterating global reduction 3 with 1 rules applied. Total rules applied 52 place count 83 transition count 208
Discarding 1 places :
Symmetric choice reduction at 3 with 1 rule applications. Total rules 53 place count 82 transition count 206
Iterating global reduction 3 with 1 rules applied. Total rules applied 54 place count 82 transition count 206
Applied a total of 54 rules in 23 ms. Remains 82 /104 variables (removed 22) and now considering 206/263 (removed 57) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 24 ms. Remains : 82/104 places, 206/263 transitions.
[2025-06-01 16:43:55] [INFO ] Flow matrix only has 126 transitions (discarded 80 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
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 48 ms. (steps per millisecond=208 ) properties (out of 1) seen :[7]
Current structural bounds on expressions (after cover walk) : Max Seen:[9] Max Struct:[+inf]
[2025-06-01 16:43:55] [INFO ] Flow matrix only has 126 transitions (discarded 80 similar events)
// Phase 1: matrix 126 rows 82 cols
[2025-06-01 16:43:55] [INFO ] Computed 3 invariants in 1 ms
Current structural bounds on expressions (after invariants) : Max Seen:[9] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 1333 ms. (749 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 848 ms. (1177 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[288] Max Struct:[+inf]
[2025-06-01 16:43:58] [INFO ] Flow matrix only has 126 transitions (discarded 80 similar events)
[2025-06-01 16:43:58] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:43:58] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 16:43:58] [INFO ] [Real]Absence check using state equation in 47 ms returned sat
[2025-06-01 16:43:58] [INFO ] State equation strengthened by 18 read => feed constraints.
[2025-06-01 16:43:58] [INFO ] [Real]Added 18 Read/Feed constraints in 6 ms returned sat
[2025-06-01 16:43:58] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:43:58] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 16:43:58] [INFO ] [Nat]Absence check using state equation in 46 ms returned sat
[2025-06-01 16:43:58] [INFO ] [Nat]Added 18 Read/Feed constraints in 5 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:43:58] [INFO ] Deduced a trap composed of 14 places in 88 ms of which 7 ms to minimize.
[2025-06-01 16:43:58] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 101 ms
[2025-06-01 16:43:58] [INFO ] Computed and/alt/rep : 59/192/53 causal constraints (skipped 71 transitions) in 9 ms.
[2025-06-01 16:43:58] [INFO ] Added : 9 causal constraints over 3 iterations in 73 ms. Result :sat
Minimization took 30 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[288] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[288] 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 16:43:58] [INFO ] Flow matrix only has 126 transitions (discarded 80 similar events)
[2025-06-01 16:43:58] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-01 16:43:59] [INFO ] Implicit Places using invariants in 451 ms returned []
[2025-06-01 16:43:59] [INFO ] Flow matrix only has 126 transitions (discarded 80 similar events)
[2025-06-01 16:43:59] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-01 16:43:59] [INFO ] State equation strengthened by 18 read => feed constraints.
[2025-06-01 16:43:59] [INFO ] Implicit Places using invariants and state equation in 349 ms returned []
Implicit Place search using SMT with State Equation took 819 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-01 16:43:59] [INFO ] Redundant transitions in 1 ms returned []
Running 204 sub problems to find dead transitions.
[2025-06-01 16:43:59] [INFO ] Flow matrix only has 126 transitions (discarded 80 similar events)
[2025-06-01 16:43:59] [INFO ] Invariant cache hit.
[2025-06-01 16:43:59] [INFO ] State equation strengthened by 18 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
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
All remaining problems are real, not stopping.
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 4055 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, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 204 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
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
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:44:07] [INFO ] Deduced a trap along path composed of 3 places in 34 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:44:08] [INFO ] Deduced a trap along path composed of 3 places in 19 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:44:08] [INFO ] Deduced a trap along path composed of 3 places in 25 ms of which 1 ms to minimize.
At refinement iteration 5 (INCLUDED_ONLY) 0/208 variables, 3/310 constraints. Problems are: Problem set: 0 solved, 204 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:44:13] [INFO ] Deduced a trap along path composed of 3 places in 28 ms of which 1 ms to minimize.
At refinement iteration 6 (INCLUDED_ONLY) 0/208 variables, 1/311 constraints. Problems are: Problem set: 0 solved, 204 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/208 variables, 0/311 constraints. Problems are: Problem set: 0 solved, 204 unsolved
At refinement iteration 8 (OVERLAPS) 0/208 variables, 0/311 constraints. Problems are: Problem set: 0 solved, 204 unsolved
No progress, stopping.
After SMT solving in domain Int declared 208/208 variables, and 311 constraints, problems are : Problem set: 0 solved, 204 unsolved in 22026 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, Known Traps Along Path: 4/4 constraints]
After SMT, in 26154ms problems are : Problem set: 0 solved, 204 unsolved
Search for dead transitions found 0 dead transitions in 26155ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 26990 ms. Remains : 82/82 places, 206/206 transitions.
[2025-06-01 16:44:25] [INFO ] Flow matrix only has 126 transitions (discarded 80 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
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 :[3]
Current structural bounds on expressions (after cover walk) : Max Seen:[288] Max Struct:[+inf]
[2025-06-01 16:44:25] [INFO ] Flow matrix only has 126 transitions (discarded 80 similar events)
[2025-06-01 16:44:25] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[288] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 1266 ms. (789 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 852 ms. (1172 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[288] Max Struct:[+inf]
[2025-06-01 16:44:27] [INFO ] Flow matrix only has 126 transitions (discarded 80 similar events)
[2025-06-01 16:44:27] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:44:27] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 16:44:27] [INFO ] [Real]Absence check using state equation in 47 ms returned sat
[2025-06-01 16:44:27] [INFO ] State equation strengthened by 18 read => feed constraints.
[2025-06-01 16:44:27] [INFO ] [Real]Added 18 Read/Feed constraints in 5 ms returned sat
[2025-06-01 16:44:27] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:44:27] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 16:44:28] [INFO ] [Nat]Absence check using state equation in 46 ms returned sat
[2025-06-01 16:44:28] [INFO ] [Nat]Added 18 Read/Feed constraints in 6 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:44:28] [INFO ] Deduced a trap composed of 14 places in 94 ms of which 8 ms to minimize.
[2025-06-01 16:44:28] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 110 ms
[2025-06-01 16:44:28] [INFO ] Computed and/alt/rep : 59/192/53 causal constraints (skipped 71 transitions) in 10 ms.
[2025-06-01 16:44:28] [INFO ] Added : 9 causal constraints over 3 iterations in 67 ms. Result :sat
Minimization took 32 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[288] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[288] 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 7 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 8 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 16:44:28] [INFO ] Flow matrix only has 126 transitions (discarded 80 similar events)
[2025-06-01 16:44:28] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-01 16:44:28] [INFO ] Implicit Places using invariants in 319 ms returned []
[2025-06-01 16:44:28] [INFO ] Flow matrix only has 126 transitions (discarded 80 similar events)
[2025-06-01 16:44:28] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-01 16:44:28] [INFO ] State equation strengthened by 18 read => feed constraints.
[2025-06-01 16:44:29] [INFO ] Implicit Places using invariants and state equation in 480 ms returned []
Implicit Place search using SMT with State Equation took 818 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-01 16:44:29] [INFO ] Redundant transitions in 0 ms returned []
Running 204 sub problems to find dead transitions.
[2025-06-01 16:44:29] [INFO ] Flow matrix only has 126 transitions (discarded 80 similar events)
[2025-06-01 16:44:29] [INFO ] Invariant cache hit.
[2025-06-01 16:44:29] [INFO ] State equation strengthened by 18 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
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
All remaining problems are real, not stopping.
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 4096 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, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 204 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
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
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:44:37] [INFO ] Deduced a trap along path composed of 3 places in 48 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:44:37] [INFO ] Deduced a trap along path composed of 3 places in 23 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:44:38] [INFO ] Deduced a trap along path composed of 3 places in 32 ms of which 0 ms to minimize.
At refinement iteration 5 (INCLUDED_ONLY) 0/208 variables, 3/310 constraints. Problems are: Problem set: 0 solved, 204 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:44:43] [INFO ] Deduced a trap along path composed of 3 places in 36 ms of which 1 ms to minimize.
At refinement iteration 6 (INCLUDED_ONLY) 0/208 variables, 1/311 constraints. Problems are: Problem set: 0 solved, 204 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/208 variables, 0/311 constraints. Problems are: Problem set: 0 solved, 204 unsolved
At refinement iteration 8 (OVERLAPS) 0/208 variables, 0/311 constraints. Problems are: Problem set: 0 solved, 204 unsolved
No progress, stopping.
After SMT solving in domain Int declared 208/208 variables, and 311 constraints, problems are : Problem set: 0 solved, 204 unsolved in 22314 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, Known Traps Along Path: 4/4 constraints]
After SMT, in 26485ms problems are : Problem set: 0 solved, 204 unsolved
Search for dead transitions found 0 dead transitions in 26487ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 27320 ms. Remains : 82/82 places, 206/206 transitions.
[2025-06-01 16:44:55] [INFO ] Flow matrix only has 126 transitions (discarded 80 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
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 35 ms. (steps per millisecond=285 ) properties (out of 1) seen :[5]
Current structural bounds on expressions (after cover walk) : Max Seen:[288] Max Struct:[+inf]
[2025-06-01 16:44:55] [INFO ] Flatten gal took : 12 ms
RANDOM walk for 40003 steps (8 resets) in 168 ms. (236 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (8 resets) in 43 ms. (909 steps per ms) remains 1/1 properties
[2025-06-01 16:44:55] [INFO ] Flatten gal took : 100 ms
[2025-06-01 16:44:55] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality619139492205583072.gal : 2 ms
[2025-06-01 16:44:55] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality9280002383952837131.prop : 0 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality619139492205583072.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality9280002383952837131.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...327
Loading property file /tmp/ReachabilityCardinality9280002383952837131.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 1042
SDD proceeding with computation,1 properties remain. new max is 16
SDD size :1042 after 156830
SDD proceeding with computation,1 properties remain. new max is 32
SDD size :156830 after 1.80068e+08
Interrupted probabilistic random walk after 1219719 steps, run timeout after 3001 ms. (steps per millisecond=406 ) properties seen :0 out of 1
Probabilistic random walk after 1219719 steps, saw 759110 distinct states, run finished after 3011 ms. (steps per millisecond=405 ) properties seen :0
[2025-06-01 16:44:58] [INFO ] Flow matrix only has 126 transitions (discarded 80 similar events)
[2025-06-01 16:44:58] [INFO ] Invariant cache hit.
[2025-06-01 16:44:58] [INFO ] State equation strengthened by 18 read => feed constraints.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 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) 5/8 variables, 2/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/8 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 7/15 variables, 3/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/15 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 10/25 variables, 4/10 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/25 variables, 0/10 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 73/98 variables, 8/18 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/98 variables, 2/20 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/98 variables, 0/20 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 12 (OVERLAPS) 7/105 variables, 2/22 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/105 variables, 3/25 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/105 variables, 0/25 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 91/196 variables, 53/78 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/196 variables, 16/94 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/196 variables, 0/94 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 6/202 variables, 1/95 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/202 variables, 0/95 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (OVERLAPS) 6/208 variables, 8/103 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/208 variables, 0/103 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (OVERLAPS) 0/208 variables, 0/103 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 208/208 variables, and 103 constraints, problems are : Problem set: 0 solved, 1 unsolved in 576 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 82/82 constraints, ReadFeed: 18/18 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 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) 5/8 variables, 2/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/8 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 7/15 variables, 3/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/15 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 10/25 variables, 4/10 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/25 variables, 0/10 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 73/98 variables, 8/18 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/98 variables, 2/20 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/98 variables, 1/21 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/98 variables, 0/21 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 7/105 variables, 2/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/105 variables, 3/26 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/105 variables, 0/26 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 91/196 variables, 53/79 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/196 variables, 16/95 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/196 variables, 0/95 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 6/202 variables, 1/96 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/202 variables, 0/96 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 6/208 variables, 8/104 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:44:59] [INFO ] Deduced a trap along path composed of 3 places in 23 ms of which 0 ms to minimize.
At refinement iteration 22 (INCLUDED_ONLY) 0/208 variables, 1/105 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (INCLUDED_ONLY) 0/208 variables, 0/105 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (OVERLAPS) 0/208 variables, 0/105 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 208/208 variables, and 105 constraints, problems are : Problem set: 0 solved, 1 unsolved in 655 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 82/82 constraints, ReadFeed: 18/18 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 1/1 constraints]
After SMT, in 1247ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 638 ms.
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.
RANDOM walk for 40000 steps (8 resets) in 138 ms. (287 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (8 resets) in 50 ms. (784 steps per ms) remains 1/1 properties
SDD proceeding with computation,1 properties remain. new max is 64
SDD size :1.80068e+08 after 2.94416e+12
Interrupted probabilistic random walk after 1373432 steps, run timeout after 3001 ms. (steps per millisecond=457 ) properties seen :0 out of 1
Probabilistic random walk after 1373432 steps, saw 854788 distinct states, run finished after 3001 ms. (steps per millisecond=457 ) properties seen :0
[2025-06-01 16:45:03] [INFO ] Flow matrix only has 126 transitions (discarded 80 similar events)
[2025-06-01 16:45:03] [INFO ] Invariant cache hit.
[2025-06-01 16:45:03] [INFO ] State equation strengthened by 18 read => feed constraints.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 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) 5/8 variables, 2/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/8 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 7/15 variables, 3/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/15 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 10/25 variables, 4/10 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/25 variables, 0/10 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 73/98 variables, 8/18 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/98 variables, 2/20 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/98 variables, 0/20 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 12 (OVERLAPS) 7/105 variables, 2/22 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/105 variables, 3/25 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/105 variables, 0/25 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 91/196 variables, 53/78 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/196 variables, 16/94 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/196 variables, 0/94 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 6/202 variables, 1/95 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/202 variables, 0/95 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (OVERLAPS) 6/208 variables, 8/103 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/208 variables, 0/103 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (OVERLAPS) 0/208 variables, 0/103 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 208/208 variables, and 103 constraints, problems are : Problem set: 0 solved, 1 unsolved in 138 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 82/82 constraints, ReadFeed: 18/18 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 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) 5/8 variables, 2/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/8 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 7/15 variables, 3/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/15 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 10/25 variables, 4/10 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/25 variables, 0/10 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 73/98 variables, 8/18 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/98 variables, 2/20 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/98 variables, 1/21 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/98 variables, 0/21 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 7/105 variables, 2/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/105 variables, 3/26 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/105 variables, 0/26 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 91/196 variables, 53/79 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/196 variables, 16/95 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/196 variables, 0/95 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 6/202 variables, 1/96 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/202 variables, 0/96 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 6/208 variables, 8/104 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:45:04] [INFO ] Deduced a trap along path composed of 3 places in 21 ms of which 0 ms to minimize.
At refinement iteration 22 (INCLUDED_ONLY) 0/208 variables, 1/105 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (INCLUDED_ONLY) 0/208 variables, 0/105 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (OVERLAPS) 0/208 variables, 0/105 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 208/208 variables, and 105 constraints, problems are : Problem set: 0 solved, 1 unsolved in 192 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 82/82 constraints, ReadFeed: 18/18 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 1/1 constraints]
After SMT, in 335ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 630 ms.
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 16:45:04] [INFO ] Flow matrix only has 126 transitions (discarded 80 similar events)
[2025-06-01 16:45:04] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-01 16:45:04] [INFO ] Implicit Places using invariants in 105 ms returned []
[2025-06-01 16:45:04] [INFO ] Flow matrix only has 126 transitions (discarded 80 similar events)
[2025-06-01 16:45:04] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-01 16:45:04] [INFO ] State equation strengthened by 18 read => feed constraints.
[2025-06-01 16:45:05] [INFO ] Implicit Places using invariants and state equation in 233 ms returned []
Implicit Place search using SMT with State Equation took 340 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-01 16:45:05] [INFO ] Redundant transitions in 1 ms returned []
Running 204 sub problems to find dead transitions.
[2025-06-01 16:45:05] [INFO ] Flow matrix only has 126 transitions (discarded 80 similar events)
[2025-06-01 16:45:05] [INFO ] Invariant cache hit.
[2025-06-01 16:45:05] [INFO ] State equation strengthened by 18 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
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
All remaining problems are real, not stopping.
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 4463 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, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 204 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
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
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:45:14] [INFO ] Deduced a trap along path composed of 3 places in 23 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:45:14] [INFO ] Deduced a trap along path composed of 3 places in 21 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:45:15] [INFO ] Deduced a trap along path composed of 3 places in 20 ms of which 1 ms to minimize.
At refinement iteration 5 (INCLUDED_ONLY) 0/208 variables, 3/310 constraints. Problems are: Problem set: 0 solved, 204 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:45:19] [INFO ] Deduced a trap along path composed of 3 places in 23 ms of which 1 ms to minimize.
At refinement iteration 6 (INCLUDED_ONLY) 0/208 variables, 1/311 constraints. Problems are: Problem set: 0 solved, 204 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/208 variables, 0/311 constraints. Problems are: Problem set: 0 solved, 204 unsolved
At refinement iteration 8 (OVERLAPS) 0/208 variables, 0/311 constraints. Problems are: Problem set: 0 solved, 204 unsolved
No progress, stopping.
After SMT solving in domain Int declared 208/208 variables, and 311 constraints, problems are : Problem set: 0 solved, 204 unsolved in 22708 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, Known Traps Along Path: 4/4 constraints]
After SMT, in 27242ms problems are : Problem set: 0 solved, 204 unsolved
Search for dead transitions found 0 dead transitions in 27243ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 27594 ms. Remains : 82/82 places, 206/206 transitions.
Attempting over-approximation, by ignoring read arcs.
Ensure Unique test removed 80 transitions
Reduce isomorphic transitions removed 80 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 86 rules applied. Total rules applied 86 place count 82 transition count 120
Reduce places removed 6 places and 0 transitions.
Iterating post reduction 1 with 6 rules applied. Total rules applied 92 place count 76 transition count 120
Performed 17 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 17 Pre rules applied. Total rules applied 92 place count 76 transition count 103
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 126 place count 59 transition count 103
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 156 place count 44 transition count 88
Discarding 7 places :
Symmetric choice reduction at 2 with 7 rule applications. Total rules 163 place count 37 transition count 74
Iterating global reduction 2 with 7 rules applied. Total rules applied 170 place count 37 transition count 74
Discarding 7 places :
Symmetric choice reduction at 2 with 7 rule applications. Total rules 177 place count 30 transition count 60
Iterating global reduction 2 with 7 rules applied. Total rules applied 184 place count 30 transition count 60
Discarding 7 places :
Symmetric choice reduction at 2 with 7 rule applications. Total rules 191 place count 23 transition count 46
Iterating global reduction 2 with 7 rules applied. Total rules applied 198 place count 23 transition count 46
Ensure Unique test removed 7 transitions
Reduce isomorphic transitions removed 7 transitions.
Iterating post reduction 2 with 7 rules applied. Total rules applied 205 place count 23 transition count 39
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 1 Pre rules applied. Total rules applied 205 place count 23 transition count 38
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 207 place count 22 transition count 38
Performed 2 Post agglomeration using F-continuation condition.Transition count delta: 0
Deduced a syphon composed of 2 places in 0 ms
Reduce places removed 2 places and 0 transitions.
Iterating global reduction 3 with 4 rules applied. Total rules applied 211 place count 20 transition count 38
Applied a total of 211 rules in 20 ms. Remains 20 /82 variables (removed 62) and now considering 38/206 (removed 168) transitions.
Running SMT prover for 1 properties.
// Phase 1: matrix 38 rows 20 cols
[2025-06-01 16:45:32] [INFO ] Computed 3 invariants in 1 ms
Starting Z3 with timeout 450.0 s and query timeout 45000.0 ms
[2025-06-01 16:45:32] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 16:45:32] [INFO ] After 17ms SMT Verify possible using state equation in real domain returned unsat :0 sat :1
[2025-06-01 16:45:32] [INFO ] State equation strengthened by 2 read => feed constraints.
[2025-06-01 16:45:32] [INFO ] After 5ms SMT Verify possible using 2 Read/Feed constraints in real domain returned unsat :0 sat :0 real:1
[2025-06-01 16:45:32] [INFO ] After 48ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
Starting Z3 with timeout 450.0 s and query timeout 45000.0 ms
[2025-06-01 16:45:32] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 16:45:32] [INFO ] After 17ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
[2025-06-01 16:45:32] [INFO ] After 4ms SMT Verify possible using 2 Read/Feed constraints in natural domain returned unsat :0 sat :1
TRAPS : Iteration 0
[2025-06-01 16:45:32] [INFO ] After 9ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
[2025-06-01 16:45:32] [INFO ] After 59ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
[2025-06-01 16:45:32] [INFO ] Flatten gal took : 4 ms
[2025-06-01 16:45:32] [INFO ] Flatten gal took : 3 ms
[2025-06-01 16:45:32] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality16093758929522582255.gal : 1 ms
[2025-06-01 16:45:32] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality6626760584969535938.prop : 0 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality16093758929522582255.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality6626760584969535938.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...329
Loading property file /tmp/ReachabilityCardinality6626760584969535938.prop.
SDD proceeding with computation,1 properties remain. new max is 4
SDD size :1 after 5
SDD proceeding with computation,1 properties remain. new max is 8
SDD size :5 after 10
SDD proceeding with computation,1 properties remain. new max is 16
SDD size :10 after 19
SDD proceeding with computation,1 properties remain. new max is 32
SDD size :19 after 36
SDD proceeding with computation,1 properties remain. new max is 64
SDD size :36 after 315
SDD proceeding with computation,1 properties remain. new max is 128
SDD size :315 after 74116
SDD proceeding with computation,1 properties remain. new max is 256
SDD size :74116 after 2.14714e+08
SDD proceeding with computation,1 properties remain. new max is 512
SDD size :2.14714e+08 after 1.77591e+09
SDD proceeding with computation,1 properties remain. new max is 128
SDD size :2.94416e+12 after 1.0746e+18
SDD proceeding with computation,1 properties remain. new max is 1024
SDD size :1.77591e+09 after 9.4111e+09
SDD proceeding with computation,1 properties remain. new max is 2048
SDD size :9.4111e+09 after 4.27012e+10
Detected timeout of ITS tools.
[2025-06-01 16:45:45] [INFO ] Flatten gal took : 10 ms
[2025-06-01 16:45:45] [INFO ] Applying decomposition
[2025-06-01 16:45:45] [INFO ] Flatten gal took : 10 ms
Converted graph to binary with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/convert-linux64' '-i' '/tmp/graph2643600476268259262.txt' '-o' '/tmp/graph2643600476268259262.bin' '-w' '/tmp/graph2643600476268259262.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/louvain-linux64' '/tmp/graph2643600476268259262.bin' '-l' '-1' '-v' '-w' '/tmp/graph2643600476268259262.weights' '-q' '0' '-e' '0.001'
[2025-06-01 16:45:46] [INFO ] Decomposing Gal with order
[2025-06-01 16:45:46] [INFO ] Rewriting arrays to variables to allow decomposition.
[2025-06-01 16:45:46] [INFO ] Removed a total of 348 redundant transitions.
[2025-06-01 16:45:46] [INFO ] Flatten gal took : 35 ms
[2025-06-01 16:45:46] [INFO ] Fuse similar labels procedure discarded/fused a total of 107 labels/synchronizations in 9 ms.
[2025-06-01 16:45:46] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality3125651872369421822.gal : 2 ms
[2025-06-01 16:45:46] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality4965257494870578747.prop : 0 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality3125651872369421822.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality4965257494870578747.prop' '--nowitness'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...307
Loading property file /tmp/ReachabilityCardinality4965257494870578747.prop.
Detected timeout of ITS tools.
[2025-06-01 16:45:47] [INFO ] Flatten gal took : 4 ms
[2025-06-01 16:45:47] [INFO ] Applying decomposition
[2025-06-01 16:45:47] [INFO ] Flatten gal took : 2 ms
Converted graph to binary with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/convert-linux64' '-i' '/tmp/graph17821072620526643176.txt' '-o' '/tmp/graph17821072620526643176.bin' '-w' '/tmp/graph17821072620526643176.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/louvain-linux64' '/tmp/graph17821072620526643176.bin' '-l' '-1' '-v' '-w' '/tmp/graph17821072620526643176.weights' '-q' '0' '-e' '0.001'
[2025-06-01 16:45:47] [INFO ] Decomposing Gal with order
[2025-06-01 16:45:47] [INFO ] Rewriting arrays to variables to allow decomposition.
[2025-06-01 16:45:47] [INFO ] Removed a total of 35 redundant transitions.
[2025-06-01 16:45:47] [INFO ] Flatten gal took : 10 ms
[2025-06-01 16:45:47] [INFO ] Fuse similar labels procedure discarded/fused a total of 10 labels/synchronizations in 1 ms.
[2025-06-01 16:45:47] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality12554965976176070100.gal : 1 ms
[2025-06-01 16:45:47] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality13311126824716618394.prop : 0 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality12554965976176070100.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality13311126824716618394.prop' '--nowitness'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...309
Loading property file /tmp/ReachabilityCardinality13311126824716618394.prop.
SDD proceeding with computation,1 properties remain. new max is 4
SDD size :1 after 5
SDD proceeding with computation,1 properties remain. new max is 8
SDD size :5 after 10
SDD proceeding with computation,1 properties remain. new max is 16
SDD size :10 after 19
SDD proceeding with computation,1 properties remain. new max is 32
SDD size :19 after 36
SDD proceeding with computation,1 properties remain. new max is 64
SDD size :36 after 315
SDD proceeding with computation,1 properties remain. new max is 128
SDD size :315 after 52444
SDD proceeding with computation,1 properties remain. new max is 256
SDD size :52444 after 9.99281e+06
SDD proceeding with computation,1 properties remain. new max is 512
SDD size :9.99281e+06 after 1.3629e+08
SDD proceeding with computation,1 properties remain. new max is 1024
SDD size :1.3629e+08 after 8.46028e+08
Detected timeout of ITS tools.
Over-approximation ignoring read arcs solved 0 properties in 30249 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:[288] Max Struct:[+inf]
Ending property specific reduction for FunctionPointer-PT-b064-UpperBounds-08 in 127480 ms.
Starting property specific reduction for FunctionPointer-PT-b064-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 16:46:02] [INFO ] Flow matrix only has 166 transitions (discarded 97 similar events)
// Phase 1: matrix 166 rows 104 cols
[2025-06-01 16:46:02] [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 7 ms. (1250 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[63] Max Struct:[+inf]
[2025-06-01 16:46:02] [INFO ] Flow matrix only has 166 transitions (discarded 97 similar events)
[2025-06-01 16:46:02] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-01 16:46:02] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 16:46:02] [INFO ] [Real]Absence check using state equation in 59 ms returned sat
[2025-06-01 16:46:02] [INFO ] State equation strengthened by 27 read => feed constraints.
[2025-06-01 16:46:02] [INFO ] [Real]Added 27 Read/Feed constraints in 8 ms returned sat
[2025-06-01 16:46:02] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-01 16:46:02] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 16:46:02] [INFO ] [Nat]Absence check using state equation in 56 ms returned sat
[2025-06-01 16:46:02] [INFO ] [Nat]Added 27 Read/Feed constraints in 7 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:46:02] [INFO ] Deduced a trap composed of 16 places in 83 ms of which 5 ms to minimize.
[2025-06-01 16:46:02] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 96 ms
[2025-06-01 16:46:02] [INFO ] Computed and/alt/rep : 67/333/63 causal constraints (skipped 101 transitions) in 12 ms.
[2025-06-01 16:46:03] [INFO ] Added : 3 causal constraints over 1 iterations in 43 ms. Result :sat
Minimization took 38 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[63] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[63] Max Struct:[+inf]
Support contains 1 out of 104 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 104/104 places, 263/263 transitions.
Discarding 5 places :
Symmetric choice reduction at 0 with 5 rule applications. Total rules 5 place count 99 transition count 247
Iterating global reduction 0 with 5 rules applied. Total rules applied 10 place count 99 transition count 247
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 0 with 2 rules applied. Total rules applied 12 place count 99 transition count 245
Discarding 6 places :
Symmetric choice reduction at 1 with 6 rule applications. Total rules 18 place count 93 transition count 231
Iterating global reduction 1 with 6 rules applied. Total rules applied 24 place count 93 transition count 231
Ensure Unique test removed 4 transitions
Reduce isomorphic transitions removed 4 transitions.
Iterating post reduction 1 with 4 rules applied. Total rules applied 28 place count 93 transition count 227
Discarding 3 places :
Symmetric choice reduction at 2 with 3 rule applications. Total rules 31 place count 90 transition count 219
Iterating global reduction 2 with 3 rules applied. Total rules applied 34 place count 90 transition count 219
Discarding 3 places :
Symmetric choice reduction at 2 with 3 rule applications. Total rules 37 place count 87 transition count 213
Iterating global reduction 2 with 3 rules applied. Total rules applied 40 place count 87 transition count 213
Discarding 3 places :
Symmetric choice reduction at 2 with 3 rule applications. Total rules 43 place count 84 transition count 207
Iterating global reduction 2 with 3 rules applied. Total rules applied 46 place count 84 transition count 207
Discarding 3 places :
Symmetric choice reduction at 2 with 3 rule applications. Total rules 49 place count 81 transition count 201
Iterating global reduction 2 with 3 rules applied. Total rules applied 52 place count 81 transition count 201
Discarding 2 places :
Symmetric choice reduction at 2 with 2 rule applications. Total rules 54 place count 79 transition count 197
Iterating global reduction 2 with 2 rules applied. Total rules applied 56 place count 79 transition count 197
Discarding 2 places :
Symmetric choice reduction at 2 with 2 rule applications. Total rules 58 place count 77 transition count 193
Iterating global reduction 2 with 2 rules applied. Total rules applied 60 place count 77 transition count 193
Discarding 1 places :
Symmetric choice reduction at 2 with 1 rule applications. Total rules 61 place count 76 transition count 191
Iterating global reduction 2 with 1 rules applied. Total rules applied 62 place count 76 transition count 191
Applied a total of 62 rules in 17 ms. Remains 76 /104 variables (removed 28) and now considering 191/263 (removed 72) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 17 ms. Remains : 76/104 places, 191/263 transitions.
[2025-06-01 16:46:03] [INFO ] Flow matrix only has 117 transitions (discarded 74 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {31=1, 56=1, 102=1, 115=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {31=1, 56=1, 86=1, 112=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 33 ms. (steps per millisecond=303 ) properties (out of 1) seen :[11]
Current structural bounds on expressions (after cover walk) : Max Seen:[63] Max Struct:[+inf]
[2025-06-01 16:46:03] [INFO ] Flow matrix only has 117 transitions (discarded 74 similar events)
// Phase 1: matrix 117 rows 76 cols
[2025-06-01 16:46:03] [INFO ] Computed 3 invariants in 0 ms
Current structural bounds on expressions (after invariants) : Max Seen:[63] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 1244 ms. (803 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 697 ms. (1432 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[75] Max Struct:[+inf]
[2025-06-01 16:46:05] [INFO ] Flow matrix only has 117 transitions (discarded 74 similar events)
[2025-06-01 16:46:05] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:46:05] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 16:46:05] [INFO ] [Real]Absence check using state equation in 40 ms returned sat
[2025-06-01 16:46:05] [INFO ] State equation strengthened by 18 read => feed constraints.
[2025-06-01 16:46:05] [INFO ] [Real]Added 18 Read/Feed constraints in 7 ms returned sat
[2025-06-01 16:46:05] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:46:05] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 16:46:05] [INFO ] [Nat]Absence check using state equation in 38 ms returned sat
[2025-06-01 16:46:05] [INFO ] [Nat]Added 18 Read/Feed constraints in 7 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:46:05] [INFO ] Deduced a trap composed of 13 places in 67 ms of which 6 ms to minimize.
[2025-06-01 16:46:05] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 77 ms
[2025-06-01 16:46:05] [INFO ] Computed and/alt/rep : 61/197/52 causal constraints (skipped 63 transitions) in 8 ms.
[2025-06-01 16:46:05] [INFO ] Added : 6 causal constraints over 3 iterations in 45 ms. Result :sat
Minimization took 27 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[75] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[75] Max Struct:[+inf]
Support contains 1 out of 76 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 76/76 places, 191/191 transitions.
Applied a total of 0 rules in 3 ms. Remains 76 /76 variables (removed 0) and now considering 191/191 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 3 ms. Remains : 76/76 places, 191/191 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 76/76 places, 191/191 transitions.
Applied a total of 0 rules in 3 ms. Remains 76 /76 variables (removed 0) and now considering 191/191 (removed 0) transitions.
[2025-06-01 16:46:05] [INFO ] Flow matrix only has 117 transitions (discarded 74 similar events)
[2025-06-01 16:46:05] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-01 16:46:05] [INFO ] Implicit Places using invariants in 107 ms returned []
[2025-06-01 16:46:05] [INFO ] Flow matrix only has 117 transitions (discarded 74 similar events)
[2025-06-01 16:46:05] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-01 16:46:05] [INFO ] State equation strengthened by 18 read => feed constraints.
[2025-06-01 16:46:05] [INFO ] Implicit Places using invariants and state equation in 314 ms returned []
Implicit Place search using SMT with State Equation took 423 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-01 16:46:06] [INFO ] Redundant transitions in 1 ms returned []
Running 189 sub problems to find dead transitions.
[2025-06-01 16:46:06] [INFO ] Flow matrix only has 117 transitions (discarded 74 similar events)
[2025-06-01 16:46:06] [INFO ] Invariant cache hit.
[2025-06-01 16:46:06] [INFO ] State equation strengthened by 18 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/76 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 189 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/76 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 189 unsolved
At refinement iteration 2 (OVERLAPS) 117/193 variables, 76/79 constraints. Problems are: Problem set: 0 solved, 189 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/193 variables, 18/97 constraints. Problems are: Problem set: 0 solved, 189 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/193 variables, 0/97 constraints. Problems are: Problem set: 0 solved, 189 unsolved
At refinement iteration 5 (OVERLAPS) 0/193 variables, 0/97 constraints. Problems are: Problem set: 0 solved, 189 unsolved
No progress, stopping.
After SMT solving in domain Real declared 193/193 variables, and 97 constraints, problems are : Problem set: 0 solved, 189 unsolved in 3822 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 76/76 constraints, ReadFeed: 18/18 constraints, PredecessorRefiner: 189/189 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 189 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/76 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 189 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/76 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 189 unsolved
At refinement iteration 2 (OVERLAPS) 117/193 variables, 76/79 constraints. Problems are: Problem set: 0 solved, 189 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/193 variables, 18/97 constraints. Problems are: Problem set: 0 solved, 189 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/193 variables, 189/286 constraints. Problems are: Problem set: 0 solved, 189 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:46:14] [INFO ] Deduced a trap along path composed of 3 places in 26 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:46:14] [INFO ] Deduced a trap along path composed of 3 places in 19 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:46:14] [INFO ] Deduced a trap along path composed of 3 places in 19 ms of which 0 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:46:14] [INFO ] Deduced a trap along path composed of 3 places in 24 ms of which 0 ms to minimize.
At refinement iteration 5 (INCLUDED_ONLY) 0/193 variables, 4/290 constraints. Problems are: Problem set: 0 solved, 189 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:46:18] [INFO ] Deduced a trap along path composed of 3 places in 23 ms of which 1 ms to minimize.
At refinement iteration 6 (INCLUDED_ONLY) 0/193 variables, 1/291 constraints. Problems are: Problem set: 0 solved, 189 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/193 variables, 0/291 constraints. Problems are: Problem set: 0 solved, 189 unsolved
At refinement iteration 8 (OVERLAPS) 0/193 variables, 0/291 constraints. Problems are: Problem set: 0 solved, 189 unsolved
No progress, stopping.
After SMT solving in domain Int declared 193/193 variables, and 291 constraints, problems are : Problem set: 0 solved, 189 unsolved in 23867 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 76/76 constraints, ReadFeed: 18/18 constraints, PredecessorRefiner: 189/189 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 5/5 constraints]
After SMT, in 27763ms problems are : Problem set: 0 solved, 189 unsolved
Search for dead transitions found 0 dead transitions in 27764ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 28198 ms. Remains : 76/76 places, 191/191 transitions.
[2025-06-01 16:46:33] [INFO ] Flow matrix only has 117 transitions (discarded 74 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {31=1, 56=1, 102=1, 115=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {31=1, 56=1, 86=1, 112=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 :[6]
Current structural bounds on expressions (after cover walk) : Max Seen:[75] Max Struct:[+inf]
[2025-06-01 16:46:33] [INFO ] Flow matrix only has 117 transitions (discarded 74 similar events)
[2025-06-01 16:46:33] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[75] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 1007 ms. (992 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 707 ms. (1412 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[102] Max Struct:[+inf]
[2025-06-01 16:46:35] [INFO ] Flow matrix only has 117 transitions (discarded 74 similar events)
[2025-06-01 16:46:35] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:46:35] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 16:46:35] [INFO ] [Real]Absence check using state equation in 44 ms returned sat
[2025-06-01 16:46:35] [INFO ] State equation strengthened by 18 read => feed constraints.
[2025-06-01 16:46:35] [INFO ] [Real]Added 18 Read/Feed constraints in 8 ms returned sat
[2025-06-01 16:46:35] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:46:35] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 16:46:35] [INFO ] [Nat]Absence check using state equation in 54 ms returned sat
[2025-06-01 16:46:35] [INFO ] [Nat]Added 18 Read/Feed constraints in 12 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:46:35] [INFO ] Deduced a trap composed of 13 places in 129 ms of which 9 ms to minimize.
[2025-06-01 16:46:35] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 147 ms
[2025-06-01 16:46:35] [INFO ] Computed and/alt/rep : 61/197/52 causal constraints (skipped 63 transitions) in 11 ms.
[2025-06-01 16:46:36] [INFO ] Added : 6 causal constraints over 3 iterations in 74 ms. Result :sat
Minimization took 41 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[102] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[102] Max Struct:[+inf]
Support contains 1 out of 76 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 76/76 places, 191/191 transitions.
Applied a total of 0 rules in 5 ms. Remains 76 /76 variables (removed 0) and now considering 191/191 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 5 ms. Remains : 76/76 places, 191/191 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 76/76 places, 191/191 transitions.
Applied a total of 0 rules in 4 ms. Remains 76 /76 variables (removed 0) and now considering 191/191 (removed 0) transitions.
[2025-06-01 16:46:36] [INFO ] Flow matrix only has 117 transitions (discarded 74 similar events)
[2025-06-01 16:46:36] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-01 16:46:36] [INFO ] Implicit Places using invariants in 154 ms returned []
[2025-06-01 16:46:36] [INFO ] Flow matrix only has 117 transitions (discarded 74 similar events)
[2025-06-01 16:46:36] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-01 16:46:36] [INFO ] State equation strengthened by 18 read => feed constraints.
[2025-06-01 16:46:36] [INFO ] Implicit Places using invariants and state equation in 363 ms returned []
Implicit Place search using SMT with State Equation took 545 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-01 16:46:36] [INFO ] Redundant transitions in 1 ms returned []
Running 189 sub problems to find dead transitions.
[2025-06-01 16:46:36] [INFO ] Flow matrix only has 117 transitions (discarded 74 similar events)
[2025-06-01 16:46:36] [INFO ] Invariant cache hit.
[2025-06-01 16:46:36] [INFO ] State equation strengthened by 18 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/76 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 189 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/76 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 189 unsolved
At refinement iteration 2 (OVERLAPS) 117/193 variables, 76/79 constraints. Problems are: Problem set: 0 solved, 189 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/193 variables, 18/97 constraints. Problems are: Problem set: 0 solved, 189 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/193 variables, 0/97 constraints. Problems are: Problem set: 0 solved, 189 unsolved
At refinement iteration 5 (OVERLAPS) 0/193 variables, 0/97 constraints. Problems are: Problem set: 0 solved, 189 unsolved
No progress, stopping.
After SMT solving in domain Real declared 193/193 variables, and 97 constraints, problems are : Problem set: 0 solved, 189 unsolved in 5030 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 76/76 constraints, ReadFeed: 18/18 constraints, PredecessorRefiner: 189/189 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 189 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/76 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 189 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/76 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 189 unsolved
At refinement iteration 2 (OVERLAPS) 117/193 variables, 76/79 constraints. Problems are: Problem set: 0 solved, 189 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/193 variables, 18/97 constraints. Problems are: Problem set: 0 solved, 189 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/193 variables, 189/286 constraints. Problems are: Problem set: 0 solved, 189 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:46:47] [INFO ] Deduced a trap along path composed of 3 places in 40 ms of which 0 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:46:47] [INFO ] Deduced a trap along path composed of 3 places in 34 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:46:47] [INFO ] Deduced a trap along path composed of 3 places in 26 ms of which 0 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:46:48] [INFO ] Deduced a trap along path composed of 3 places in 39 ms of which 1 ms to minimize.
At refinement iteration 5 (INCLUDED_ONLY) 0/193 variables, 4/290 constraints. Problems are: Problem set: 0 solved, 189 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:46:52] [INFO ] Deduced a trap along path composed of 3 places in 46 ms of which 1 ms to minimize.
At refinement iteration 6 (INCLUDED_ONLY) 0/193 variables, 1/291 constraints. Problems are: Problem set: 0 solved, 189 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/193 variables, 0/291 constraints. Problems are: Problem set: 0 solved, 189 unsolved
At refinement iteration 8 (OVERLAPS) 0/193 variables, 0/291 constraints. Problems are: Problem set: 0 solved, 189 unsolved
No progress, stopping.
After SMT solving in domain Int declared 193/193 variables, and 291 constraints, problems are : Problem set: 0 solved, 189 unsolved in 27134 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 76/76 constraints, ReadFeed: 18/18 constraints, PredecessorRefiner: 189/189 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 5/5 constraints]
After SMT, in 32241ms problems are : Problem set: 0 solved, 189 unsolved
Search for dead transitions found 0 dead transitions in 32243ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 32809 ms. Remains : 76/76 places, 191/191 transitions.
[2025-06-01 16:47:09] [INFO ] Flow matrix only has 117 transitions (discarded 74 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {31=1, 56=1, 102=1, 115=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {31=1, 56=1, 86=1, 112=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 :[9]
Current structural bounds on expressions (after cover walk) : Max Seen:[102] Max Struct:[+inf]
[2025-06-01 16:47:09] [INFO ] Flow matrix only has 117 transitions (discarded 74 similar events)
[2025-06-01 16:47:09] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[102] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 1142 ms. (874 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 739 ms. (1351 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[102] Max Struct:[+inf]
[2025-06-01 16:47:11] [INFO ] Flow matrix only has 117 transitions (discarded 74 similar events)
[2025-06-01 16:47:11] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:47:11] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 16:47:11] [INFO ] [Real]Absence check using state equation in 44 ms returned sat
[2025-06-01 16:47:11] [INFO ] State equation strengthened by 18 read => feed constraints.
[2025-06-01 16:47:11] [INFO ] [Real]Added 18 Read/Feed constraints in 9 ms returned sat
[2025-06-01 16:47:11] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:47:11] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 16:47:11] [INFO ] [Nat]Absence check using state equation in 47 ms returned sat
[2025-06-01 16:47:11] [INFO ] [Nat]Added 18 Read/Feed constraints in 8 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:47:11] [INFO ] Deduced a trap composed of 13 places in 101 ms of which 8 ms to minimize.
[2025-06-01 16:47:11] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 121 ms
[2025-06-01 16:47:11] [INFO ] Computed and/alt/rep : 61/197/52 causal constraints (skipped 63 transitions) in 14 ms.
[2025-06-01 16:47:11] [INFO ] Added : 6 causal constraints over 3 iterations in 57 ms. Result :sat
Minimization took 30 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[102] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[102] Max Struct:[+inf]
Support contains 1 out of 76 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 76/76 places, 191/191 transitions.
Applied a total of 0 rules in 3 ms. Remains 76 /76 variables (removed 0) and now considering 191/191 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 3 ms. Remains : 76/76 places, 191/191 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 76/76 places, 191/191 transitions.
Applied a total of 0 rules in 3 ms. Remains 76 /76 variables (removed 0) and now considering 191/191 (removed 0) transitions.
[2025-06-01 16:47:11] [INFO ] Flow matrix only has 117 transitions (discarded 74 similar events)
[2025-06-01 16:47:11] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-01 16:47:11] [INFO ] Implicit Places using invariants in 140 ms returned []
[2025-06-01 16:47:11] [INFO ] Flow matrix only has 117 transitions (discarded 74 similar events)
[2025-06-01 16:47:11] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-01 16:47:11] [INFO ] State equation strengthened by 18 read => feed constraints.
[2025-06-01 16:47:11] [INFO ] Implicit Places using invariants and state equation in 271 ms returned []
Implicit Place search using SMT with State Equation took 431 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-01 16:47:11] [INFO ] Redundant transitions in 0 ms returned []
Running 189 sub problems to find dead transitions.
[2025-06-01 16:47:11] [INFO ] Flow matrix only has 117 transitions (discarded 74 similar events)
[2025-06-01 16:47:11] [INFO ] Invariant cache hit.
[2025-06-01 16:47:11] [INFO ] State equation strengthened by 18 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/76 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 189 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/76 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 189 unsolved
At refinement iteration 2 (OVERLAPS) 117/193 variables, 76/79 constraints. Problems are: Problem set: 0 solved, 189 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/193 variables, 18/97 constraints. Problems are: Problem set: 0 solved, 189 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/193 variables, 0/97 constraints. Problems are: Problem set: 0 solved, 189 unsolved
At refinement iteration 5 (OVERLAPS) 0/193 variables, 0/97 constraints. Problems are: Problem set: 0 solved, 189 unsolved
No progress, stopping.
After SMT solving in domain Real declared 193/193 variables, and 97 constraints, problems are : Problem set: 0 solved, 189 unsolved in 4889 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 76/76 constraints, ReadFeed: 18/18 constraints, PredecessorRefiner: 189/189 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 189 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/76 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 189 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/76 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 189 unsolved
At refinement iteration 2 (OVERLAPS) 117/193 variables, 76/79 constraints. Problems are: Problem set: 0 solved, 189 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/193 variables, 18/97 constraints. Problems are: Problem set: 0 solved, 189 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/193 variables, 189/286 constraints. Problems are: Problem set: 0 solved, 189 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:47:22] [INFO ] Deduced a trap along path composed of 3 places in 36 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:47:22] [INFO ] Deduced a trap along path composed of 3 places in 33 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:47:22] [INFO ] Deduced a trap along path composed of 3 places in 27 ms of which 0 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:47:23] [INFO ] Deduced a trap along path composed of 3 places in 40 ms of which 1 ms to minimize.
At refinement iteration 5 (INCLUDED_ONLY) 0/193 variables, 4/290 constraints. Problems are: Problem set: 0 solved, 189 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:47:28] [INFO ] Deduced a trap along path composed of 3 places in 40 ms of which 1 ms to minimize.
At refinement iteration 6 (INCLUDED_ONLY) 0/193 variables, 1/291 constraints. Problems are: Problem set: 0 solved, 189 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/193 variables, 0/291 constraints. Problems are: Problem set: 0 solved, 189 unsolved
At refinement iteration 8 (OVERLAPS) 0/193 variables, 0/291 constraints. Problems are: Problem set: 0 solved, 189 unsolved
No progress, stopping.
After SMT solving in domain Int declared 193/193 variables, and 291 constraints, problems are : Problem set: 0 solved, 189 unsolved in 27897 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 76/76 constraints, ReadFeed: 18/18 constraints, PredecessorRefiner: 189/189 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 5/5 constraints]
After SMT, in 32840ms problems are : Problem set: 0 solved, 189 unsolved
Search for dead transitions found 0 dead transitions in 32840ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 33294 ms. Remains : 76/76 places, 191/191 transitions.
[2025-06-01 16:47:44] [INFO ] Flow matrix only has 117 transitions (discarded 74 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {31=1, 56=1, 102=1, 115=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {31=1, 56=1, 86=1, 112=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 :[19]
Current structural bounds on expressions (after cover walk) : Max Seen:[102] Max Struct:[+inf]
[2025-06-01 16:47:44] [INFO ] Flatten gal took : 8 ms
[2025-06-01 16:47:44] [INFO ] Flatten gal took : 8 ms
[2025-06-01 16:47:44] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality4546646792206316392.gal : 1 ms
[2025-06-01 16:47:44] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality18139609724968335684.prop : 0 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality4546646792206316392.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality18139609724968335684.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...329
Loading property file /tmp/ReachabilityCardinality18139609724968335684.prop.
RANDOM walk for 40000 steps (8 resets) in 94 ms. (421 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (8 resets) in 33 ms. (1176 steps per ms) remains 1/1 properties
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 923
SDD proceeding with computation,1 properties remain. new max is 16
SDD size :923 after 103738
SDD proceeding with computation,1 properties remain. new max is 32
SDD size :103738 after 7.00547e+07
SDD proceeding with computation,1 properties remain. new max is 64
SDD size :7.00547e+07 after 4.05225e+11
Interrupted probabilistic random walk after 1555195 steps, run timeout after 3001 ms. (steps per millisecond=518 ) properties seen :0 out of 1
Probabilistic random walk after 1555195 steps, saw 968039 distinct states, run finished after 3001 ms. (steps per millisecond=518 ) properties seen :0
[2025-06-01 16:47:48] [INFO ] Flow matrix only has 117 transitions (discarded 74 similar events)
[2025-06-01 16:47:48] [INFO ] Invariant cache hit.
[2025-06-01 16:47:48] [INFO ] State equation strengthened by 18 read => feed constraints.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 4/5 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/5 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 64/69 variables, 6/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/69 variables, 1/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/69 variables, 0/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 6/75 variables, 2/10 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/75 variables, 2/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/75 variables, 0/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 94/169 variables, 53/65 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/169 variables, 17/82 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/169 variables, 0/82 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 12 (OVERLAPS) 6/175 variables, 1/83 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/175 variables, 0/83 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 11/186 variables, 10/93 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/186 variables, 0/93 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 4/190 variables, 2/95 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/190 variables, 0/95 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 3/193 variables, 2/97 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/193 variables, 0/97 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (OVERLAPS) 0/193 variables, 0/97 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 193/193 variables, and 97 constraints, problems are : Problem set: 0 solved, 1 unsolved in 148 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 76/76 constraints, ReadFeed: 18/18 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 4/5 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/5 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 64/69 variables, 6/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/69 variables, 1/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/69 variables, 0/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 6/75 variables, 2/10 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/75 variables, 2/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/75 variables, 0/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 94/169 variables, 53/65 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/169 variables, 17/82 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/169 variables, 1/83 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/169 variables, 0/83 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 6/175 variables, 1/84 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:47:48] [INFO ] Deduced a trap along path composed of 3 places in 17 ms of which 0 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:47:48] [INFO ] Deduced a trap along path composed of 3 places in 20 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:47:48] [INFO ] Deduced a trap along path composed of 3 places in 17 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:47:48] [INFO ] Deduced a trap along path composed of 3 places in 22 ms of which 1 ms to minimize.
At refinement iteration 14 (INCLUDED_ONLY) 0/175 variables, 4/88 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/175 variables, 0/88 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 11/186 variables, 10/98 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:47:48] [INFO ] Deduced a trap along path composed of 3 places in 18 ms of which 1 ms to minimize.
At refinement iteration 17 (INCLUDED_ONLY) 0/186 variables, 1/99 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/186 variables, 0/99 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 4/190 variables, 2/101 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/190 variables, 0/101 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 3/193 variables, 2/103 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/193 variables, 0/103 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 0/193 variables, 0/103 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 193/193 variables, and 103 constraints, problems are : Problem set: 0 solved, 1 unsolved in 311 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 76/76 constraints, ReadFeed: 18/18 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 5/5 constraints]
After SMT, in 466ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 0 ms.
Support contains 1 out of 76 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 76/76 places, 191/191 transitions.
Applied a total of 0 rules in 3 ms. Remains 76 /76 variables (removed 0) and now considering 191/191 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 3 ms. Remains : 76/76 places, 191/191 transitions.
RANDOM walk for 40003 steps (8 resets) in 83 ms. (476 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (8 resets) in 46 ms. (851 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1558461 steps, run timeout after 3001 ms. (steps per millisecond=519 ) properties seen :0 out of 1
Probabilistic random walk after 1558461 steps, saw 970071 distinct states, run finished after 3001 ms. (steps per millisecond=519 ) properties seen :0
[2025-06-01 16:47:51] [INFO ] Flow matrix only has 117 transitions (discarded 74 similar events)
[2025-06-01 16:47:51] [INFO ] Invariant cache hit.
[2025-06-01 16:47:51] [INFO ] State equation strengthened by 18 read => feed constraints.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 4/5 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/5 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 64/69 variables, 6/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/69 variables, 1/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/69 variables, 0/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 6/75 variables, 2/10 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/75 variables, 2/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/75 variables, 0/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 94/169 variables, 53/65 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/169 variables, 17/82 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/169 variables, 0/82 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 12 (OVERLAPS) 6/175 variables, 1/83 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/175 variables, 0/83 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 11/186 variables, 10/93 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/186 variables, 0/93 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 4/190 variables, 2/95 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/190 variables, 0/95 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 3/193 variables, 2/97 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/193 variables, 0/97 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (OVERLAPS) 0/193 variables, 0/97 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 193/193 variables, and 97 constraints, problems are : Problem set: 0 solved, 1 unsolved in 125 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 76/76 constraints, ReadFeed: 18/18 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 4/5 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/5 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 64/69 variables, 6/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/69 variables, 1/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/69 variables, 0/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 6/75 variables, 2/10 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/75 variables, 2/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/75 variables, 0/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 94/169 variables, 53/65 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/169 variables, 17/82 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/169 variables, 1/83 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/169 variables, 0/83 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 6/175 variables, 1/84 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:47:51] [INFO ] Deduced a trap along path composed of 3 places in 18 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:47:51] [INFO ] Deduced a trap along path composed of 3 places in 21 ms of which 0 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:47:51] [INFO ] Deduced a trap along path composed of 3 places in 18 ms of which 0 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:47:51] [INFO ] Deduced a trap along path composed of 3 places in 19 ms of which 0 ms to minimize.
At refinement iteration 14 (INCLUDED_ONLY) 0/175 variables, 4/88 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/175 variables, 0/88 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 11/186 variables, 10/98 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:47:51] [INFO ] Deduced a trap along path composed of 3 places in 18 ms of which 0 ms to minimize.
At refinement iteration 17 (INCLUDED_ONLY) 0/186 variables, 1/99 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/186 variables, 0/99 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 4/190 variables, 2/101 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/190 variables, 0/101 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 3/193 variables, 2/103 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/193 variables, 0/103 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 0/193 variables, 0/103 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 193/193 variables, and 103 constraints, problems are : Problem set: 0 solved, 1 unsolved in 300 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 76/76 constraints, ReadFeed: 18/18 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 5/5 constraints]
After SMT, in 429ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 0 ms.
Support contains 1 out of 76 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 76/76 places, 191/191 transitions.
Applied a total of 0 rules in 4 ms. Remains 76 /76 variables (removed 0) and now considering 191/191 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 4 ms. Remains : 76/76 places, 191/191 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 76/76 places, 191/191 transitions.
Applied a total of 0 rules in 3 ms. Remains 76 /76 variables (removed 0) and now considering 191/191 (removed 0) transitions.
[2025-06-01 16:47:51] [INFO ] Flow matrix only has 117 transitions (discarded 74 similar events)
[2025-06-01 16:47:51] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-01 16:47:52] [INFO ] Implicit Places using invariants in 105 ms returned []
[2025-06-01 16:47:52] [INFO ] Flow matrix only has 117 transitions (discarded 74 similar events)
[2025-06-01 16:47:52] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-01 16:47:52] [INFO ] State equation strengthened by 18 read => feed constraints.
[2025-06-01 16:47:52] [INFO ] Implicit Places using invariants and state equation in 235 ms returned []
Implicit Place search using SMT with State Equation took 342 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-01 16:47:52] [INFO ] Redundant transitions in 0 ms returned []
Running 189 sub problems to find dead transitions.
[2025-06-01 16:47:52] [INFO ] Flow matrix only has 117 transitions (discarded 74 similar events)
[2025-06-01 16:47:52] [INFO ] Invariant cache hit.
[2025-06-01 16:47:52] [INFO ] State equation strengthened by 18 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/76 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 189 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/76 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 189 unsolved
At refinement iteration 2 (OVERLAPS) 117/193 variables, 76/79 constraints. Problems are: Problem set: 0 solved, 189 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/193 variables, 18/97 constraints. Problems are: Problem set: 0 solved, 189 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/193 variables, 0/97 constraints. Problems are: Problem set: 0 solved, 189 unsolved
At refinement iteration 5 (OVERLAPS) 0/193 variables, 0/97 constraints. Problems are: Problem set: 0 solved, 189 unsolved
No progress, stopping.
After SMT solving in domain Real declared 193/193 variables, and 97 constraints, problems are : Problem set: 0 solved, 189 unsolved in 3202 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 76/76 constraints, ReadFeed: 18/18 constraints, PredecessorRefiner: 189/189 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 189 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/76 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 189 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/76 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 189 unsolved
At refinement iteration 2 (OVERLAPS) 117/193 variables, 76/79 constraints. Problems are: Problem set: 0 solved, 189 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/193 variables, 18/97 constraints. Problems are: Problem set: 0 solved, 189 unsolved
SDD proceeding with computation,1 properties remain. new max is 128
SDD size :4.05225e+11 after 2.075e+16
At refinement iteration 4 (INCLUDED_ONLY) 0/193 variables, 189/286 constraints. Problems are: Problem set: 0 solved, 189 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:47:59] [INFO ] Deduced a trap along path composed of 3 places in 21 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:47:59] [INFO ] Deduced a trap along path composed of 3 places in 19 ms of which 0 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:47:59] [INFO ] Deduced a trap along path composed of 3 places in 18 ms of which 0 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:47:59] [INFO ] Deduced a trap along path composed of 3 places in 17 ms of which 1 ms to minimize.
At refinement iteration 5 (INCLUDED_ONLY) 0/193 variables, 4/290 constraints. Problems are: Problem set: 0 solved, 189 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:48:03] [INFO ] Deduced a trap along path composed of 3 places in 19 ms of which 1 ms to minimize.
At refinement iteration 6 (INCLUDED_ONLY) 0/193 variables, 1/291 constraints. Problems are: Problem set: 0 solved, 189 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/193 variables, 0/291 constraints. Problems are: Problem set: 0 solved, 189 unsolved
At refinement iteration 8 (OVERLAPS) 0/193 variables, 0/291 constraints. Problems are: Problem set: 0 solved, 189 unsolved
No progress, stopping.
After SMT solving in domain Int declared 193/193 variables, and 291 constraints, problems are : Problem set: 0 solved, 189 unsolved in 18494 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 76/76 constraints, ReadFeed: 18/18 constraints, PredecessorRefiner: 189/189 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 5/5 constraints]
After SMT, in 21742ms problems are : Problem set: 0 solved, 189 unsolved
Search for dead transitions found 0 dead transitions in 21743ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 22094 ms. Remains : 76/76 places, 191/191 transitions.
Attempting over-approximation, by ignoring read arcs.
Ensure Unique test removed 74 transitions
Reduce isomorphic transitions removed 74 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 81 rules applied. Total rules applied 81 place count 76 transition count 110
Reduce places removed 7 places and 0 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Iterating post reduction 1 with 8 rules applied. Total rules applied 89 place count 69 transition count 109
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 2 with 1 rules applied. Total rules applied 90 place count 68 transition count 109
Performed 12 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 12 Pre rules applied. Total rules applied 90 place count 68 transition count 97
Deduced a syphon composed of 12 places in 0 ms
Reduce places removed 12 places and 0 transitions.
Iterating global reduction 3 with 24 rules applied. Total rules applied 114 place count 56 transition count 97
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 3 with 30 rules applied. Total rules applied 144 place count 41 transition count 82
Discarding 7 places :
Symmetric choice reduction at 3 with 7 rule applications. Total rules 151 place count 34 transition count 68
Iterating global reduction 3 with 7 rules applied. Total rules applied 158 place count 34 transition count 68
Discarding 7 places :
Symmetric choice reduction at 3 with 7 rule applications. Total rules 165 place count 27 transition count 54
Iterating global reduction 3 with 7 rules applied. Total rules applied 172 place count 27 transition count 54
Discarding 7 places :
Symmetric choice reduction at 3 with 7 rule applications. Total rules 179 place count 20 transition count 40
Iterating global reduction 3 with 7 rules applied. Total rules applied 186 place count 20 transition count 40
Ensure Unique test removed 7 transitions
Reduce isomorphic transitions removed 7 transitions.
Iterating post reduction 3 with 7 rules applied. Total rules applied 193 place count 20 transition count 33
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 4 with 1 Pre rules applied. Total rules applied 193 place count 20 transition count 32
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 4 with 2 rules applied. Total rules applied 195 place count 19 transition count 32
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 4 with 2 rules applied. Total rules applied 197 place count 18 transition count 32
Applied a total of 197 rules in 21 ms. Remains 18 /76 variables (removed 58) and now considering 32/191 (removed 159) transitions.
Running SMT prover for 1 properties.
// Phase 1: matrix 32 rows 18 cols
[2025-06-01 16:48:14] [INFO ] Computed 3 invariants in 0 ms
Starting Z3 with timeout 450.0 s and query timeout 45000.0 ms
[2025-06-01 16:48:14] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 16:48:14] [INFO ] After 54ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
Starting Z3 with timeout 450.0 s and query timeout 45000.0 ms
[2025-06-01 16:48:14] [INFO ] [Nat]Absence check using 3 positive place invariants in 1 ms returned sat
[2025-06-01 16:48:14] [INFO ] After 18ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
[2025-06-01 16:48:14] [INFO ] State equation strengthened by 2 read => feed constraints.
[2025-06-01 16:48:14] [INFO ] After 4ms SMT Verify possible using 2 Read/Feed constraints in natural domain returned unsat :0 sat :1
TRAPS : Iteration 0
[2025-06-01 16:48:14] [INFO ] After 9ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
[2025-06-01 16:48:14] [INFO ] After 62ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
[2025-06-01 16:48:14] [INFO ] Flatten gal took : 4 ms
[2025-06-01 16:48:14] [INFO ] Flatten gal took : 2 ms
[2025-06-01 16:48:14] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality8254311940502730077.gal : 1 ms
[2025-06-01 16:48:14] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality3005839482002471179.prop : 0 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality8254311940502730077.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality3005839482002471179.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...328
Loading property file /tmp/ReachabilityCardinality3005839482002471179.prop.
SDD proceeding with computation,1 properties remain. new max is 4
SDD size :1 after 5
SDD proceeding with computation,1 properties remain. new max is 8
SDD size :5 after 10
SDD proceeding with computation,1 properties remain. new max is 16
SDD size :10 after 19
SDD proceeding with computation,1 properties remain. new max is 32
SDD size :19 after 36
SDD proceeding with computation,1 properties remain. new max is 64
SDD size :36 after 315
SDD proceeding with computation,1 properties remain. new max is 128
SDD size :315 after 35107
SDD proceeding with computation,1 properties remain. new max is 256
SDD size :35107 after 6.2298e+06
SDD proceeding with computation,1 properties remain. new max is 512
SDD size :6.2298e+06 after 1.79901e+07
SDD proceeding with computation,1 properties remain. new max is 1024
SDD size :1.79901e+07 after 4.1465e+07
SDD proceeding with computation,1 properties remain. new max is 2048
SDD size :4.1465e+07 after 8.8369e+07
SDD proceeding with computation,1 properties remain. new max is 4096
SDD size :8.8369e+07 after 1.82131e+08
Detected timeout of ITS tools.
[2025-06-01 16:48:29] [INFO ] Flatten gal took : 1 ms
[2025-06-01 16:48:29] [INFO ] Applying decomposition
[2025-06-01 16:48:29] [INFO ] Flatten gal took : 2 ms
Converted graph to binary with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/convert-linux64' '-i' '/tmp/graph6438719736794792821.txt' '-o' '/tmp/graph6438719736794792821.bin' '-w' '/tmp/graph6438719736794792821.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/louvain-linux64' '/tmp/graph6438719736794792821.bin' '-l' '-1' '-v' '-w' '/tmp/graph6438719736794792821.weights' '-q' '0' '-e' '0.001'
[2025-06-01 16:48:29] [INFO ] Decomposing Gal with order
[2025-06-01 16:48:29] [INFO ] Rewriting arrays to variables to allow decomposition.
[2025-06-01 16:48:29] [INFO ] Removed a total of 23 redundant transitions.
[2025-06-01 16:48:29] [INFO ] Flatten gal took : 3 ms
[2025-06-01 16:48:29] [INFO ] Fuse similar labels procedure discarded/fused a total of 4 labels/synchronizations in 1 ms.
[2025-06-01 16:48:29] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality13774346217810189095.gal : 1 ms
[2025-06-01 16:48:29] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality13903883750820818952.prop : 0 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality13774346217810189095.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality13903883750820818952.prop' '--nowitness'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...309
Loading property file /tmp/ReachabilityCardinality13903883750820818952.prop.
SDD proceeding with computation,1 properties remain. new max is 4
SDD size :1 after 5
SDD proceeding with computation,1 properties remain. new max is 8
SDD size :5 after 10
SDD proceeding with computation,1 properties remain. new max is 16
SDD size :10 after 19
SDD proceeding with computation,1 properties remain. new max is 32
SDD size :19 after 36
SDD proceeding with computation,1 properties remain. new max is 64
SDD size :36 after 315
SDD proceeding with computation,1 properties remain. new max is 128
SDD size :315 after 19107
SDD proceeding with computation,1 properties remain. new max is 256
SDD size :19107 after 6.10519e+06
SDD proceeding with computation,1 properties remain. new max is 512
SDD size :6.10519e+06 after 1.78197e+07
SDD proceeding with computation,1 properties remain. new max is 1024
SDD size :1.78197e+07 after 4.12489e+07
SDD proceeding with computation,1 properties remain. new max is 2048
SDD size :4.12489e+07 after 8.81071e+07
Detected timeout of ITS tools.
[2025-06-01 16:48:35] [INFO ] Flatten gal took : 13 ms
[2025-06-01 16:48:35] [INFO ] Applying decomposition
[2025-06-01 16:48:35] [INFO ] Flatten gal took : 18 ms
Converted graph to binary with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/convert-linux64' '-i' '/tmp/graph7104521722720791412.txt' '-o' '/tmp/graph7104521722720791412.bin' '-w' '/tmp/graph7104521722720791412.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/louvain-linux64' '/tmp/graph7104521722720791412.bin' '-l' '-1' '-v' '-w' '/tmp/graph7104521722720791412.weights' '-q' '0' '-e' '0.001'
[2025-06-01 16:48:35] [INFO ] Decomposing Gal with order
[2025-06-01 16:48:35] [INFO ] Rewriting arrays to variables to allow decomposition.
[2025-06-01 16:48:35] [INFO ] Removed a total of 323 redundant transitions.
[2025-06-01 16:48:35] [INFO ] Flatten gal took : 30 ms
[2025-06-01 16:48:35] [INFO ] Fuse similar labels procedure discarded/fused a total of 87 labels/synchronizations in 26 ms.
[2025-06-01 16:48:35] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality16764190395415225640.gal : 2 ms
[2025-06-01 16:48:35] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality11703150232198302603.prop : 1 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality16764190395415225640.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality11703150232198302603.prop' '--nowitness'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...309
Loading property file /tmp/ReachabilityCardinality11703150232198302603.prop.
SDD proceeding with computation,1 properties remain. new max is 4096
SDD size :8.81071e+07 after 1.81824e+08
Detected timeout of ITS tools.
Over-approximation ignoring read arcs solved 0 properties in 30242 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:[102] Max Struct:[+inf]
Ending property specific reduction for FunctionPointer-PT-b064-UpperBounds-10 in 161663 ms.
Starting property specific reduction for FunctionPointer-PT-b064-UpperBounds-11
Current structural bounds on expressions (Initially) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (Adding known information on max bounds.) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (Before main loop) : Max Seen:[0] Max Struct:[+inf]
[2025-06-01 16:48:44] [INFO ] Flow matrix only has 166 transitions (discarded 97 similar events)
// Phase 1: matrix 166 rows 104 cols
[2025-06-01 16:48:44] [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 15 ms. (625 steps per ms)
BEST_FIRST walk for 10001 steps (2 resets) in 8 ms. (1111 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[1] Max Struct:[+inf]
[2025-06-01 16:48:44] [INFO ] Flow matrix only has 166 transitions (discarded 97 similar events)
[2025-06-01 16:48:44] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-01 16:48:44] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 16:48:44] [INFO ] [Real]Absence check using state equation in 56 ms returned sat
[2025-06-01 16:48:44] [INFO ] State equation strengthened by 27 read => feed constraints.
[2025-06-01 16:48:44] [INFO ] [Real]Added 27 Read/Feed constraints in 6 ms returned sat
[2025-06-01 16:48:44] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-01 16:48:44] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 16:48:44] [INFO ] [Nat]Absence check using state equation in 60 ms returned sat
[2025-06-01 16:48:44] [INFO ] [Nat]Added 27 Read/Feed constraints in 7 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:48:44] [INFO ] Deduced a trap composed of 16 places in 214 ms of which 5 ms to minimize.
[2025-06-01 16:48:44] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 232 ms
[2025-06-01 16:48:44] [INFO ] Computed and/alt/rep : 67/333/63 causal constraints (skipped 101 transitions) in 19 ms.
[2025-06-01 16:48:44] [INFO ] Added : 15 causal constraints over 4 iterations in 104 ms. Result :sat
Minimization took 43 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[1] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[2] Max Struct:[+inf]
Support contains 1 out of 104 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 104/104 places, 263/263 transitions.
Graph (complete) has 439 edges and 104 vertex of which 101 are kept as prefixes of interest. Removing 3 places using SCC suffix rule.1 ms
Discarding 3 places :
Also discarding 0 output transitions
Drop transitions (Empty/Sink Transition effects.) removed 5 transitions
Reduce isomorphic transitions removed 5 transitions.
Iterating post reduction 0 with 5 rules applied. Total rules applied 6 place count 101 transition count 258
Discarding 4 places :
Symmetric choice reduction at 1 with 4 rule applications. Total rules 10 place count 97 transition count 244
Iterating global reduction 1 with 4 rules applied. Total rules applied 14 place count 97 transition count 244
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 1 with 2 rules applied. Total rules applied 16 place count 97 transition count 242
Discarding 5 places :
Symmetric choice reduction at 2 with 5 rule applications. Total rules 21 place count 92 transition count 230
Iterating global reduction 2 with 5 rules applied. Total rules applied 26 place count 92 transition count 230
Ensure Unique test removed 4 transitions
Reduce isomorphic transitions removed 4 transitions.
Iterating post reduction 2 with 4 rules applied. Total rules applied 30 place count 92 transition count 226
Discarding 2 places :
Symmetric choice reduction at 3 with 2 rule applications. Total rules 32 place count 90 transition count 220
Iterating global reduction 3 with 2 rules applied. Total rules applied 34 place count 90 transition count 220
Discarding 2 places :
Symmetric choice reduction at 3 with 2 rule applications. Total rules 36 place count 88 transition count 216
Iterating global reduction 3 with 2 rules applied. Total rules applied 38 place count 88 transition count 216
Discarding 2 places :
Symmetric choice reduction at 3 with 2 rule applications. Total rules 40 place count 86 transition count 212
Iterating global reduction 3 with 2 rules applied. Total rules applied 42 place count 86 transition count 212
Discarding 2 places :
Symmetric choice reduction at 3 with 2 rule applications. Total rules 44 place count 84 transition count 208
Iterating global reduction 3 with 2 rules applied. Total rules applied 46 place count 84 transition count 208
Discarding 2 places :
Symmetric choice reduction at 3 with 2 rule applications. Total rules 48 place count 82 transition count 204
Iterating global reduction 3 with 2 rules applied. Total rules applied 50 place count 82 transition count 204
Discarding 2 places :
Symmetric choice reduction at 3 with 2 rule applications. Total rules 52 place count 80 transition count 200
Iterating global reduction 3 with 2 rules applied. Total rules applied 54 place count 80 transition count 200
Discarding 1 places :
Symmetric choice reduction at 3 with 1 rule applications. Total rules 55 place count 79 transition count 198
Iterating global reduction 3 with 1 rules applied. Total rules applied 56 place count 79 transition count 198
Applied a total of 56 rules in 32 ms. Remains 79 /104 variables (removed 25) and now considering 198/263 (removed 65) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 32 ms. Remains : 79/104 places, 198/263 transitions.
[2025-06-01 16:48:44] [INFO ] Flow matrix only has 122 transitions (discarded 76 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
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 59 ms. (steps per millisecond=169 ) properties (out of 1) seen :[6]
Current structural bounds on expressions (after cover walk) : Max Seen:[6] Max Struct:[+inf]
[2025-06-01 16:48:45] [INFO ] Flow matrix only has 122 transitions (discarded 76 similar events)
// Phase 1: matrix 122 rows 79 cols
[2025-06-01 16:48:45] [INFO ] Computed 3 invariants in 1 ms
Current structural bounds on expressions (after invariants) : Max Seen:[6] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 1439 ms. (694 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 777 ms. (1285 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[761] Max Struct:[+inf]
[2025-06-01 16:48:47] [INFO ] Flow matrix only has 122 transitions (discarded 76 similar events)
[2025-06-01 16:48:47] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:48:47] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 16:48:47] [INFO ] [Real]Absence check using state equation in 41 ms returned sat
[2025-06-01 16:48:47] [INFO ] State equation strengthened by 18 read => feed constraints.
[2025-06-01 16:48:47] [INFO ] [Real]Added 18 Read/Feed constraints in 5 ms returned sat
[2025-06-01 16:48:47] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:48:47] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 16:48:47] [INFO ] [Nat]Absence check using state equation in 43 ms returned sat
[2025-06-01 16:48:47] [INFO ] [Nat]Added 18 Read/Feed constraints in 5 ms returned sat
[2025-06-01 16:48:47] [INFO ] Computed and/alt/rep : 59/192/53 causal constraints (skipped 67 transitions) in 11 ms.
[2025-06-01 16:48:47] [INFO ] Added : 12 causal constraints over 3 iterations in 58 ms. Result :sat
Minimization took 28 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[761] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[761] 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 4 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 4 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 3 ms. Remains 79 /79 variables (removed 0) and now considering 198/198 (removed 0) transitions.
[2025-06-01 16:48:49] [INFO ] Flow matrix only has 122 transitions (discarded 76 similar events)
[2025-06-01 16:48:49] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-01 16:48:49] [INFO ] Implicit Places using invariants in 176 ms returned []
[2025-06-01 16:48:49] [INFO ] Flow matrix only has 122 transitions (discarded 76 similar events)
[2025-06-01 16:48:50] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-01 16:48:50] [INFO ] State equation strengthened by 18 read => feed constraints.
[2025-06-01 16:48:50] [INFO ] Implicit Places using invariants and state equation in 379 ms returned []
Implicit Place search using SMT with State Equation took 557 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-01 16:48:50] [INFO ] Redundant transitions in 0 ms returned []
Running 196 sub problems to find dead transitions.
[2025-06-01 16:48:50] [INFO ] Flow matrix only has 122 transitions (discarded 76 similar events)
[2025-06-01 16:48:50] [INFO ] Invariant cache hit.
[2025-06-01 16:48:50] [INFO ] State equation strengthened by 18 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
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
All remaining problems are real, not stopping.
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 6837 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, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 196 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
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
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:49:02] [INFO ] Deduced a trap along path composed of 3 places in 21 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:49:02] [INFO ] Deduced a trap along path composed of 3 places in 22 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:49:02] [INFO ] Deduced a trap along path composed of 3 places in 18 ms of which 0 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:49:02] [INFO ] Deduced a trap along path composed of 3 places in 18 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:49:02] [INFO ] Deduced a trap along path composed of 3 places in 18 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:49:03] [INFO ] Deduced a trap along path composed of 3 places in 22 ms of which 1 ms to minimize.
At refinement iteration 5 (INCLUDED_ONLY) 0/201 variables, 6/302 constraints. Problems are: Problem set: 0 solved, 196 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/201 variables, 0/302 constraints. Problems are: Problem set: 0 solved, 196 unsolved
At refinement iteration 7 (OVERLAPS) 0/201 variables, 0/302 constraints. Problems are: Problem set: 0 solved, 196 unsolved
No progress, stopping.
After SMT solving in domain Int declared 201/201 variables, and 302 constraints, problems are : Problem set: 0 solved, 196 unsolved in 19095 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, Known Traps Along Path: 6/6 constraints]
After SMT, in 25980ms problems are : Problem set: 0 solved, 196 unsolved
Search for dead transitions found 0 dead transitions in 25980ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 26547 ms. Remains : 79/79 places, 198/198 transitions.
[2025-06-01 16:49:16] [INFO ] Flow matrix only has 122 transitions (discarded 76 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
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 34 ms. (steps per millisecond=294 ) properties (out of 1) seen :[12]
Current structural bounds on expressions (after cover walk) : Max Seen:[761] Max Struct:[+inf]
[2025-06-01 16:49:16] [INFO ] Flow matrix only has 122 transitions (discarded 76 similar events)
[2025-06-01 16:49:16] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[761] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 1477 ms. (676 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 781 ms. (1278 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[761] Max Struct:[+inf]
[2025-06-01 16:49:18] [INFO ] Flow matrix only has 122 transitions (discarded 76 similar events)
[2025-06-01 16:49:18] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:49:18] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 16:49:18] [INFO ] [Real]Absence check using state equation in 42 ms returned sat
[2025-06-01 16:49:18] [INFO ] State equation strengthened by 18 read => feed constraints.
[2025-06-01 16:49:18] [INFO ] [Real]Added 18 Read/Feed constraints in 11 ms returned sat
[2025-06-01 16:49:18] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:49:18] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 16:49:18] [INFO ] [Nat]Absence check using state equation in 43 ms returned sat
[2025-06-01 16:49:18] [INFO ] [Nat]Added 18 Read/Feed constraints in 5 ms returned sat
[2025-06-01 16:49:18] [INFO ] Computed and/alt/rep : 59/192/53 causal constraints (skipped 67 transitions) in 10 ms.
[2025-06-01 16:49:19] [INFO ] Added : 12 causal constraints over 3 iterations in 56 ms. Result :sat
Minimization took 32 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[761] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[761] 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 3 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 3 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 3 ms. Remains 79 /79 variables (removed 0) and now considering 198/198 (removed 0) transitions.
[2025-06-01 16:49:21] [INFO ] Flow matrix only has 122 transitions (discarded 76 similar events)
[2025-06-01 16:49:21] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-01 16:49:21] [INFO ] Implicit Places using invariants in 126 ms returned []
[2025-06-01 16:49:21] [INFO ] Flow matrix only has 122 transitions (discarded 76 similar events)
[2025-06-01 16:49:21] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-01 16:49:21] [INFO ] State equation strengthened by 18 read => feed constraints.
[2025-06-01 16:49:21] [INFO ] Implicit Places using invariants and state equation in 360 ms returned []
Implicit Place search using SMT with State Equation took 525 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-01 16:49:22] [INFO ] Redundant transitions in 1 ms returned []
Running 196 sub problems to find dead transitions.
[2025-06-01 16:49:22] [INFO ] Flow matrix only has 122 transitions (discarded 76 similar events)
[2025-06-01 16:49:22] [INFO ] Invariant cache hit.
[2025-06-01 16:49:22] [INFO ] State equation strengthened by 18 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
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
All remaining problems are real, not stopping.
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 6908 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, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 196 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
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
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:49:33] [INFO ] Deduced a trap along path composed of 3 places in 46 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:49:33] [INFO ] Deduced a trap along path composed of 3 places in 30 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:49:33] [INFO ] Deduced a trap along path composed of 3 places in 26 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:49:34] [INFO ] Deduced a trap along path composed of 3 places in 43 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:49:34] [INFO ] Deduced a trap along path composed of 3 places in 35 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:49:35] [INFO ] Deduced a trap along path composed of 3 places in 36 ms of which 1 ms to minimize.
At refinement iteration 5 (INCLUDED_ONLY) 0/201 variables, 6/302 constraints. Problems are: Problem set: 0 solved, 196 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/201 variables, 0/302 constraints. Problems are: Problem set: 0 solved, 196 unsolved
At refinement iteration 7 (OVERLAPS) 0/201 variables, 0/302 constraints. Problems are: Problem set: 0 solved, 196 unsolved
No progress, stopping.
After SMT solving in domain Int declared 201/201 variables, and 302 constraints, problems are : Problem set: 0 solved, 196 unsolved in 21024 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, Known Traps Along Path: 6/6 constraints]
After SMT, in 28031ms problems are : Problem set: 0 solved, 196 unsolved
Search for dead transitions found 0 dead transitions in 28033ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 28572 ms. Remains : 79/79 places, 198/198 transitions.
[2025-06-01 16:49:50] [INFO ] Flow matrix only has 122 transitions (discarded 76 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
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 34 ms. (steps per millisecond=294 ) properties (out of 1) seen :[9]
Current structural bounds on expressions (after cover walk) : Max Seen:[761] Max Struct:[+inf]
[2025-06-01 16:49:50] [INFO ] Flatten gal took : 8 ms
[2025-06-01 16:49:50] [INFO ] Flatten gal took : 7 ms
[2025-06-01 16:49:50] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality8034174088043766172.gal : 2 ms
[2025-06-01 16:49:50] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality7747633575970060752.prop : 1 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality8034174088043766172.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality7747633575970060752.prop' '--nowitness' '--gen-order' 'FOLLOW'
RANDOM walk for 40001 steps (8 resets) in 112 ms. (353 steps per ms) remains 1/1 properties

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...328
Loading property file /tmp/ReachabilityCardinality7747633575970060752.prop.
BEST_FIRST walk for 40004 steps (8 resets) in 45 ms. (869 steps per ms) remains 1/1 properties
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 1040
SDD proceeding with computation,1 properties remain. new max is 16
SDD size :1040 after 155244
SDD proceeding with computation,1 properties remain. new max is 32
SDD size :155244 after 1.77406e+08
Interrupted probabilistic random walk after 1380722 steps, run timeout after 3001 ms. (steps per millisecond=460 ) properties seen :0 out of 1
Probabilistic random walk after 1380722 steps, saw 844604 distinct states, run finished after 3001 ms. (steps per millisecond=460 ) properties seen :0
[2025-06-01 16:49:53] [INFO ] Flow matrix only has 122 transitions (discarded 76 similar events)
[2025-06-01 16:49:53] [INFO ] Invariant cache hit.
[2025-06-01 16:49:53] [INFO ] State equation strengthened by 18 read => feed constraints.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 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) 71/75 variables, 6/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/75 variables, 1/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/75 variables, 0/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 7/82 variables, 2/10 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/82 variables, 3/13 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/82 variables, 0/13 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 100/182 variables, 57/70 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/182 variables, 17/87 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/182 variables, 0/87 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 12 (OVERLAPS) 6/188 variables, 1/88 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/188 variables, 0/88 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 10/198 variables, 10/98 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/198 variables, 0/98 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 3/201 variables, 2/100 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/201 variables, 0/100 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 0/201 variables, 0/100 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 201/201 variables, and 100 constraints, problems are : Problem set: 0 solved, 1 unsolved in 121 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 79/79 constraints, ReadFeed: 18/18 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 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) 71/75 variables, 6/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/75 variables, 1/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/75 variables, 1/9 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/75 variables, 0/9 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 7/82 variables, 2/11 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/82 variables, 3/14 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/82 variables, 0/14 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 100/182 variables, 57/71 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/182 variables, 17/88 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/182 variables, 0/88 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 6/188 variables, 1/89 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/188 variables, 0/89 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 10/198 variables, 10/99 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:49:53] [INFO ] Deduced a trap along path composed of 3 places in 16 ms of which 1 ms to minimize.
At refinement iteration 16 (INCLUDED_ONLY) 0/198 variables, 1/100 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/198 variables, 0/100 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 3/201 variables, 2/102 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/201 variables, 0/102 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (OVERLAPS) 0/201 variables, 0/102 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 201/201 variables, and 102 constraints, problems are : Problem set: 0 solved, 1 unsolved in 192 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 79/79 constraints, ReadFeed: 18/18 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 1/1 constraints]
After SMT, in 318ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 1304 ms.
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 4 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 4 ms. Remains : 79/79 places, 198/198 transitions.
RANDOM walk for 40000 steps (8 resets) in 72 ms. (547 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (8 resets) in 36 ms. (1081 steps per ms) remains 1/1 properties
SDD proceeding with computation,1 properties remain. new max is 64
SDD size :1.77406e+08 after 2.78305e+12
Interrupted probabilistic random walk after 1570545 steps, run timeout after 3001 ms. (steps per millisecond=523 ) properties seen :0 out of 1
Probabilistic random walk after 1570545 steps, saw 962651 distinct states, run finished after 3001 ms. (steps per millisecond=523 ) properties seen :0
[2025-06-01 16:49:57] [INFO ] Flow matrix only has 122 transitions (discarded 76 similar events)
[2025-06-01 16:49:57] [INFO ] Invariant cache hit.
[2025-06-01 16:49:57] [INFO ] State equation strengthened by 18 read => feed constraints.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 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) 71/75 variables, 6/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/75 variables, 1/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/75 variables, 0/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 7/82 variables, 2/10 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/82 variables, 3/13 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/82 variables, 0/13 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 100/182 variables, 57/70 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/182 variables, 17/87 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/182 variables, 0/87 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 12 (OVERLAPS) 6/188 variables, 1/88 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/188 variables, 0/88 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 10/198 variables, 10/98 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/198 variables, 0/98 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 3/201 variables, 2/100 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/201 variables, 0/100 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 0/201 variables, 0/100 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 201/201 variables, and 100 constraints, problems are : Problem set: 0 solved, 1 unsolved in 128 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 79/79 constraints, ReadFeed: 18/18 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 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) 71/75 variables, 6/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/75 variables, 1/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/75 variables, 1/9 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/75 variables, 0/9 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 7/82 variables, 2/11 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/82 variables, 3/14 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/82 variables, 0/14 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 100/182 variables, 57/71 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/182 variables, 17/88 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/182 variables, 0/88 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 6/188 variables, 1/89 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/188 variables, 0/89 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 10/198 variables, 10/99 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:49:58] [INFO ] Deduced a trap along path composed of 3 places in 19 ms of which 1 ms to minimize.
At refinement iteration 16 (INCLUDED_ONLY) 0/198 variables, 1/100 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/198 variables, 0/100 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 3/201 variables, 2/102 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/201 variables, 0/102 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (OVERLAPS) 0/201 variables, 0/102 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 201/201 variables, and 102 constraints, problems are : Problem set: 0 solved, 1 unsolved in 205 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 79/79 constraints, ReadFeed: 18/18 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 1/1 constraints]
After SMT, in 345ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 1488 ms.
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 3 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 3 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 3 ms. Remains 79 /79 variables (removed 0) and now considering 198/198 (removed 0) transitions.
[2025-06-01 16:49:59] [INFO ] Flow matrix only has 122 transitions (discarded 76 similar events)
[2025-06-01 16:49:59] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-01 16:49:59] [INFO ] Implicit Places using invariants in 89 ms returned []
[2025-06-01 16:49:59] [INFO ] Flow matrix only has 122 transitions (discarded 76 similar events)
[2025-06-01 16:49:59] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-01 16:49:59] [INFO ] State equation strengthened by 18 read => feed constraints.
[2025-06-01 16:50:00] [INFO ] Implicit Places using invariants and state equation in 245 ms returned []
Implicit Place search using SMT with State Equation took 335 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-01 16:50:00] [INFO ] Redundant transitions in 1 ms returned []
Running 196 sub problems to find dead transitions.
[2025-06-01 16:50:00] [INFO ] Flow matrix only has 122 transitions (discarded 76 similar events)
[2025-06-01 16:50:00] [INFO ] Invariant cache hit.
[2025-06-01 16:50:00] [INFO ] State equation strengthened by 18 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
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
All remaining problems are real, not stopping.
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 6070 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, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 196 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
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
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:50:11] [INFO ] Deduced a trap along path composed of 3 places in 21 ms of which 0 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:50:11] [INFO ] Deduced a trap along path composed of 3 places in 26 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:50:11] [INFO ] Deduced a trap along path composed of 3 places in 23 ms of which 0 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:50:11] [INFO ] Deduced a trap along path composed of 3 places in 22 ms of which 0 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:50:12] [INFO ] Deduced a trap along path composed of 3 places in 30 ms of which 0 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:50:13] [INFO ] Deduced a trap along path composed of 3 places in 26 ms of which 2 ms to minimize.
At refinement iteration 5 (INCLUDED_ONLY) 0/201 variables, 6/302 constraints. Problems are: Problem set: 0 solved, 196 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/201 variables, 0/302 constraints. Problems are: Problem set: 0 solved, 196 unsolved
SDD proceeding with computation,1 properties remain. new max is 128
SDD size :2.78305e+12 after 8.75387e+17
At refinement iteration 7 (OVERLAPS) 0/201 variables, 0/302 constraints. Problems are: Problem set: 0 solved, 196 unsolved
No progress, stopping.
After SMT solving in domain Int declared 201/201 variables, and 302 constraints, problems are : Problem set: 0 solved, 196 unsolved in 21613 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, Known Traps Along Path: 6/6 constraints]
After SMT, in 27734ms problems are : Problem set: 0 solved, 196 unsolved
Search for dead transitions found 0 dead transitions in 27735ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 28079 ms. Remains : 79/79 places, 198/198 transitions.
Attempting over-approximation, by ignoring read arcs.
Ensure Unique test removed 76 transitions
Reduce isomorphic transitions removed 76 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 8 transitions
Trivial Post-agglo rules discarded 8 transitions
Performed 8 trivial Post agglomeration. Transition count delta: 8
Iterating post reduction 0 with 84 rules applied. Total rules applied 84 place count 79 transition count 114
Reduce places removed 8 places and 0 transitions.
Iterating post reduction 1 with 8 rules applied. Total rules applied 92 place count 71 transition count 114
Performed 13 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 13 Pre rules applied. Total rules applied 92 place count 71 transition count 101
Deduced a syphon composed of 13 places in 0 ms
Reduce places removed 13 places and 0 transitions.
Iterating global reduction 2 with 26 rules applied. Total rules applied 118 place count 58 transition count 101
Performed 16 Post agglomeration using F-continuation condition.Transition count delta: 16
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 150 place count 42 transition count 85
Discarding 7 places :
Symmetric choice reduction at 2 with 7 rule applications. Total rules 157 place count 35 transition count 71
Iterating global reduction 2 with 7 rules applied. Total rules applied 164 place count 35 transition count 71
Discarding 7 places :
Symmetric choice reduction at 2 with 7 rule applications. Total rules 171 place count 28 transition count 57
Iterating global reduction 2 with 7 rules applied. Total rules applied 178 place count 28 transition count 57
Discarding 7 places :
Symmetric choice reduction at 2 with 7 rule applications. Total rules 185 place count 21 transition count 43
Iterating global reduction 2 with 7 rules applied. Total rules applied 192 place count 21 transition count 43
Ensure Unique test removed 7 transitions
Reduce isomorphic transitions removed 7 transitions.
Iterating post reduction 2 with 7 rules applied. Total rules applied 199 place count 21 transition count 36
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 1 Pre rules applied. Total rules applied 199 place count 21 transition count 35
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 201 place count 20 transition count 35
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: -1
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 3 with 2 rules applied. Total rules applied 203 place count 19 transition count 36
Applied a total of 203 rules in 18 ms. Remains 19 /79 variables (removed 60) and now considering 36/198 (removed 162) transitions.
Running SMT prover for 1 properties.
// Phase 1: matrix 36 rows 19 cols
[2025-06-01 16:50:27] [INFO ] Computed 3 invariants in 1 ms
Starting Z3 with timeout 450.0 s and query timeout 45000.0 ms
[2025-06-01 16:50:27] [INFO ] [Real]Absence check using 3 positive place invariants in 1 ms returned sat
[2025-06-01 16:50:27] [INFO ] After 50ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
Starting Z3 with timeout 450.0 s and query timeout 45000.0 ms
[2025-06-01 16:50:27] [INFO ] [Nat]Absence check using 3 positive place invariants in 1 ms returned sat
[2025-06-01 16:50:27] [INFO ] After 13ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
[2025-06-01 16:50:27] [INFO ] State equation strengthened by 2 read => feed constraints.
[2025-06-01 16:50:27] [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 16:50:27] [INFO ] After 7ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
[2025-06-01 16:50:27] [INFO ] After 58ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
[2025-06-01 16:50:27] [INFO ] Flatten gal took : 2 ms
[2025-06-01 16:50:27] [INFO ] Flatten gal took : 1 ms
[2025-06-01 16:50:27] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality8776547976345111485.gal : 1 ms
[2025-06-01 16:50:27] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality13529175634251740297.prop : 0 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality8776547976345111485.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality13529175634251740297.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...329
Loading property file /tmp/ReachabilityCardinality13529175634251740297.prop.
SDD proceeding with computation,1 properties remain. new max is 4
SDD size :1 after 5
SDD proceeding with computation,1 properties remain. new max is 8
SDD size :5 after 10
SDD proceeding with computation,1 properties remain. new max is 16
SDD size :10 after 19
SDD proceeding with computation,1 properties remain. new max is 32
SDD size :19 after 36
SDD proceeding with computation,1 properties remain. new max is 64
SDD size :36 after 315
SDD proceeding with computation,1 properties remain. new max is 128
SDD size :315 after 74116
SDD proceeding with computation,1 properties remain. new max is 256
SDD size :74116 after 2.14714e+08
SDD proceeding with computation,1 properties remain. new max is 512
SDD size :2.14714e+08 after 1.77591e+09
SDD proceeding with computation,1 properties remain. new max is 1024
SDD size :1.77591e+09 after 9.4111e+09
SDD proceeding with computation,1 properties remain. new max is 2048
SDD size :9.4111e+09 after 4.27012e+10
Detected timeout of ITS tools.
[2025-06-01 16:50:40] [INFO ] Flatten gal took : 7 ms
[2025-06-01 16:50:40] [INFO ] Applying decomposition
[2025-06-01 16:50:40] [INFO ] Flatten gal took : 7 ms
Converted graph to binary with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/convert-linux64' '-i' '/tmp/graph3395602122532107976.txt' '-o' '/tmp/graph3395602122532107976.bin' '-w' '/tmp/graph3395602122532107976.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/louvain-linux64' '/tmp/graph3395602122532107976.bin' '-l' '-1' '-v' '-w' '/tmp/graph3395602122532107976.weights' '-q' '0' '-e' '0.001'
[2025-06-01 16:50:40] [INFO ] Decomposing Gal with order
[2025-06-01 16:50:40] [INFO ] Rewriting arrays to variables to allow decomposition.
[2025-06-01 16:50:40] [INFO ] Removed a total of 334 redundant transitions.
[2025-06-01 16:50:40] [INFO ] Flatten gal took : 18 ms
[2025-06-01 16:50:40] [INFO ] Fuse similar labels procedure discarded/fused a total of 99 labels/synchronizations in 6 ms.
[2025-06-01 16:50:40] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality6996108699575473342.gal : 3 ms
[2025-06-01 16:50:40] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality17429455536990204663.prop : 0 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality6996108699575473342.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality17429455536990204663.prop' '--nowitness'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...308
Loading property file /tmp/ReachabilityCardinality17429455536990204663.prop.
Detected timeout of ITS tools.
[2025-06-01 16:50:43] [INFO ] Flatten gal took : 1 ms
[2025-06-01 16:50:43] [INFO ] Applying decomposition
[2025-06-01 16:50:43] [INFO ] Flatten gal took : 2 ms
Converted graph to binary with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/convert-linux64' '-i' '/tmp/graph4903040926157359349.txt' '-o' '/tmp/graph4903040926157359349.bin' '-w' '/tmp/graph4903040926157359349.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/louvain-linux64' '/tmp/graph4903040926157359349.bin' '-l' '-1' '-v' '-w' '/tmp/graph4903040926157359349.weights' '-q' '0' '-e' '0.001'
[2025-06-01 16:50:43] [INFO ] Decomposing Gal with order
[2025-06-01 16:50:43] [INFO ] Rewriting arrays to variables to allow decomposition.
[2025-06-01 16:50:43] [INFO ] Removed a total of 42 redundant transitions.
[2025-06-01 16:50:43] [INFO ] Flatten gal took : 4 ms
[2025-06-01 16:50:43] [INFO ] Fuse similar labels procedure discarded/fused a total of 4 labels/synchronizations in 1 ms.
[2025-06-01 16:50:43] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality11105641359912318209.gal : 1 ms
[2025-06-01 16:50:43] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality15642370108621343585.prop : 0 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality11105641359912318209.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality15642370108621343585.prop' '--nowitness'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...309
Loading property file /tmp/ReachabilityCardinality15642370108621343585.prop.
SDD proceeding with computation,1 properties remain. new max is 4
SDD size :1 after 5
SDD proceeding with computation,1 properties remain. new max is 8
SDD size :5 after 10
SDD proceeding with computation,1 properties remain. new max is 16
SDD size :10 after 19
SDD proceeding with computation,1 properties remain. new max is 32
SDD size :19 after 36
SDD proceeding with computation,1 properties remain. new max is 64
SDD size :36 after 315
SDD proceeding with computation,1 properties remain. new max is 128
SDD size :315 after 31522
Detected timeout of ITS tools.
Over-approximation ignoring read arcs solved 0 properties in 30231 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:[761] Max Struct:[+inf]
Ending property specific reduction for FunctionPointer-PT-b064-UpperBounds-11 in 133789 ms.
Starting property specific reduction for FunctionPointer-PT-b064-UpperBounds-13
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 16:50:58] [INFO ] Flow matrix only has 166 transitions (discarded 97 similar events)
// Phase 1: matrix 166 rows 104 cols
[2025-06-01 16:50:58] [INFO ] Computed 3 invariants in 1 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[+inf]
RANDOM walk for 10004 steps (2 resets) in 14 ms. (666 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:[0] Max Struct:[+inf]
[2025-06-01 16:50:58] [INFO ] Flow matrix only has 166 transitions (discarded 97 similar events)
[2025-06-01 16:50:58] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-01 16:50:58] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 16:50:58] [INFO ] [Real]Absence check using state equation in 55 ms returned sat
[2025-06-01 16:50:58] [INFO ] State equation strengthened by 27 read => feed constraints.
[2025-06-01 16:50:58] [INFO ] [Real]Added 27 Read/Feed constraints in 6 ms returned sat
[2025-06-01 16:50:58] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-01 16:50:58] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 16:50:58] [INFO ] [Nat]Absence check using state equation in 87 ms returned sat
[2025-06-01 16:50:58] [INFO ] [Nat]Added 27 Read/Feed constraints in 10 ms returned sat
[2025-06-01 16:50:58] [INFO ] Computed and/alt/rep : 67/333/63 causal constraints (skipped 101 transitions) in 18 ms.
[2025-06-01 16:50:58] [INFO ] Added : 19 causal constraints over 5 iterations in 154 ms. Result :sat
Minimization took 70 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[1] Max Struct:[+inf]
Support contains 1 out of 104 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 104/104 places, 263/263 transitions.
Graph (complete) has 439 edges and 104 vertex of which 101 are kept as prefixes of interest. Removing 3 places using SCC suffix rule.0 ms
Discarding 3 places :
Also discarding 0 output transitions
Drop transitions (Empty/Sink Transition effects.) removed 5 transitions
Reduce isomorphic transitions removed 5 transitions.
Iterating post reduction 0 with 5 rules applied. Total rules applied 6 place count 101 transition count 258
Discarding 4 places :
Symmetric choice reduction at 1 with 4 rule applications. Total rules 10 place count 97 transition count 246
Iterating global reduction 1 with 4 rules applied. Total rules applied 14 place count 97 transition count 246
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 1 with 2 rules applied. Total rules applied 16 place count 97 transition count 244
Discarding 5 places :
Symmetric choice reduction at 2 with 5 rule applications. Total rules 21 place count 92 transition count 232
Iterating global reduction 2 with 5 rules applied. Total rules applied 26 place count 92 transition count 232
Ensure Unique test removed 4 transitions
Reduce isomorphic transitions removed 4 transitions.
Iterating post reduction 2 with 4 rules applied. Total rules applied 30 place count 92 transition count 228
Discarding 2 places :
Symmetric choice reduction at 3 with 2 rule applications. Total rules 32 place count 90 transition count 224
Iterating global reduction 3 with 2 rules applied. Total rules applied 34 place count 90 transition count 224
Discarding 2 places :
Symmetric choice reduction at 3 with 2 rule applications. Total rules 36 place count 88 transition count 220
Iterating global reduction 3 with 2 rules applied. Total rules applied 38 place count 88 transition count 220
Discarding 2 places :
Symmetric choice reduction at 3 with 2 rule applications. Total rules 40 place count 86 transition count 216
Iterating global reduction 3 with 2 rules applied. Total rules applied 42 place count 86 transition count 216
Discarding 2 places :
Symmetric choice reduction at 3 with 2 rule applications. Total rules 44 place count 84 transition count 212
Iterating global reduction 3 with 2 rules applied. Total rules applied 46 place count 84 transition count 212
Discarding 1 places :
Symmetric choice reduction at 3 with 1 rule applications. Total rules 47 place count 83 transition count 210
Iterating global reduction 3 with 1 rules applied. Total rules applied 48 place count 83 transition count 210
Discarding 1 places :
Symmetric choice reduction at 3 with 1 rule applications. Total rules 49 place count 82 transition count 208
Iterating global reduction 3 with 1 rules applied. Total rules applied 50 place count 82 transition count 208
Applied a total of 50 rules in 29 ms. Remains 82 /104 variables (removed 22) and now considering 208/263 (removed 55) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 29 ms. Remains : 82/104 places, 208/263 transitions.
[2025-06-01 16:50:58] [INFO ] Flow matrix only has 128 transitions (discarded 80 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {29=1, 32=1, 34=1, 63=1, 94=1, 123=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {26=1, 60=1, 91=1, 123=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 57 ms. (steps per millisecond=175 ) properties (out of 1) seen :[2]
Current structural bounds on expressions (after cover walk) : Max Seen:[2] Max Struct:[+inf]
[2025-06-01 16:50:58] [INFO ] Flow matrix only has 128 transitions (discarded 80 similar events)
// Phase 1: matrix 128 rows 82 cols
[2025-06-01 16:50:58] [INFO ] Computed 3 invariants in 1 ms
Current structural bounds on expressions (after invariants) : Max Seen:[2] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 1574 ms. (634 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 1055 ms. (946 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[221] Max Struct:[+inf]
[2025-06-01 16:51:01] [INFO ] Flow matrix only has 128 transitions (discarded 80 similar events)
[2025-06-01 16:51:01] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:51:01] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 16:51:01] [INFO ] [Real]Absence check using state equation in 46 ms returned sat
[2025-06-01 16:51:01] [INFO ] State equation strengthened by 18 read => feed constraints.
[2025-06-01 16:51:01] [INFO ] [Real]Added 18 Read/Feed constraints in 5 ms returned sat
[2025-06-01 16:51:01] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:51:01] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 16:51:01] [INFO ] [Nat]Absence check using state equation in 42 ms returned sat
[2025-06-01 16:51:01] [INFO ] [Nat]Added 18 Read/Feed constraints in 5 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:51:01] [INFO ] Deduced a trap composed of 14 places in 86 ms of which 12 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:51:01] [INFO ] Deduced a trap composed of 14 places in 134 ms of which 13 ms to minimize.
[2025-06-01 16:51:01] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 250 ms
[2025-06-01 16:51:01] [INFO ] Computed and/alt/rep : 60/196/54 causal constraints (skipped 72 transitions) in 15 ms.
[2025-06-01 16:51:02] [INFO ] Added : 27 causal constraints over 8 iterations in 174 ms. Result :sat
Minimization took 59 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[221] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[221] Max Struct:[+inf]
Support contains 1 out of 82 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 82/82 places, 208/208 transitions.
Applied a total of 0 rules in 3 ms. Remains 82 /82 variables (removed 0) and now considering 208/208 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 3 ms. Remains : 82/82 places, 208/208 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 82/82 places, 208/208 transitions.
Applied a total of 0 rules in 3 ms. Remains 82 /82 variables (removed 0) and now considering 208/208 (removed 0) transitions.
[2025-06-01 16:51:03] [INFO ] Flow matrix only has 128 transitions (discarded 80 similar events)
[2025-06-01 16:51:03] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-01 16:51:03] [INFO ] Implicit Places using invariants in 119 ms returned []
[2025-06-01 16:51:03] [INFO ] Flow matrix only has 128 transitions (discarded 80 similar events)
[2025-06-01 16:51:03] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-01 16:51:03] [INFO ] State equation strengthened by 18 read => feed constraints.
[2025-06-01 16:51:03] [INFO ] Implicit Places using invariants and state equation in 243 ms returned []
Implicit Place search using SMT with State Equation took 363 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-01 16:51:03] [INFO ] Redundant transitions in 1 ms returned []
Running 206 sub problems to find dead transitions.
[2025-06-01 16:51:03] [INFO ] Flow matrix only has 128 transitions (discarded 80 similar events)
[2025-06-01 16:51:03] [INFO ] Invariant cache hit.
[2025-06-01 16:51:03] [INFO ] State equation strengthened by 18 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/82 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 206 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/82 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 206 unsolved
At refinement iteration 2 (OVERLAPS) 128/210 variables, 82/85 constraints. Problems are: Problem set: 0 solved, 206 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/210 variables, 18/103 constraints. Problems are: Problem set: 0 solved, 206 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/210 variables, 0/103 constraints. Problems are: Problem set: 0 solved, 206 unsolved
At refinement iteration 5 (OVERLAPS) 0/210 variables, 0/103 constraints. Problems are: Problem set: 0 solved, 206 unsolved
No progress, stopping.
After SMT solving in domain Real declared 210/210 variables, and 103 constraints, problems are : Problem set: 0 solved, 206 unsolved in 8307 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 82/82 constraints, ReadFeed: 18/18 constraints, PredecessorRefiner: 206/206 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 206 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/82 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 206 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/82 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 206 unsolved
At refinement iteration 2 (OVERLAPS) 128/210 variables, 82/85 constraints. Problems are: Problem set: 0 solved, 206 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/210 variables, 18/103 constraints. Problems are: Problem set: 0 solved, 206 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/210 variables, 206/309 constraints. Problems are: Problem set: 0 solved, 206 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:51:17] [INFO ] Deduced a trap along path composed of 3 places in 28 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:51:17] [INFO ] Deduced a trap along path composed of 3 places in 27 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:51:17] [INFO ] Deduced a trap along path composed of 3 places in 24 ms of which 0 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:51:17] [INFO ] Deduced a trap along path composed of 3 places in 20 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:51:18] [INFO ] Deduced a trap along path composed of 3 places in 21 ms of which 0 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:51:19] [INFO ] Deduced a trap along path composed of 3 places in 24 ms of which 1 ms to minimize.
At refinement iteration 5 (INCLUDED_ONLY) 0/210 variables, 6/315 constraints. Problems are: Problem set: 0 solved, 206 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/210 variables, 0/315 constraints. Problems are: Problem set: 0 solved, 206 unsolved
At refinement iteration 7 (OVERLAPS) 0/210 variables, 0/315 constraints. Problems are: Problem set: 0 solved, 206 unsolved
No progress, stopping.
After SMT solving in domain Int declared 210/210 variables, and 315 constraints, problems are : Problem set: 0 solved, 206 unsolved in 20883 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 82/82 constraints, ReadFeed: 18/18 constraints, PredecessorRefiner: 206/206 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 6/6 constraints]
After SMT, in 29276ms problems are : Problem set: 0 solved, 206 unsolved
Search for dead transitions found 0 dead transitions in 29278ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 29653 ms. Remains : 82/82 places, 208/208 transitions.
[2025-06-01 16:51:32] [INFO ] Flow matrix only has 128 transitions (discarded 80 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {29=1, 32=1, 34=1, 63=1, 94=1, 123=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {26=1, 60=1, 91=1, 123=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 35 ms. (steps per millisecond=285 ) properties (out of 1) seen :[4]
Current structural bounds on expressions (after cover walk) : Max Seen:[221] Max Struct:[+inf]
[2025-06-01 16:51:32] [INFO ] Flow matrix only has 128 transitions (discarded 80 similar events)
[2025-06-01 16:51:32] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[221] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 1207 ms. (827 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 928 ms. (1076 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[226] Max Struct:[+inf]
[2025-06-01 16:51:34] [INFO ] Flow matrix only has 128 transitions (discarded 80 similar events)
[2025-06-01 16:51:34] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:51:35] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 16:51:35] [INFO ] [Real]Absence check using state equation in 59 ms returned sat
[2025-06-01 16:51:35] [INFO ] State equation strengthened by 18 read => feed constraints.
[2025-06-01 16:51:35] [INFO ] [Real]Added 18 Read/Feed constraints in 7 ms returned sat
[2025-06-01 16:51:35] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:51:35] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 16:51:35] [INFO ] [Nat]Absence check using state equation in 74 ms returned sat
[2025-06-01 16:51:35] [INFO ] [Nat]Added 18 Read/Feed constraints in 8 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:51:35] [INFO ] Deduced a trap composed of 14 places in 88 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:51:35] [INFO ] Deduced a trap composed of 14 places in 129 ms of which 13 ms to minimize.
[2025-06-01 16:51:35] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 246 ms
[2025-06-01 16:51:35] [INFO ] Computed and/alt/rep : 60/196/54 causal constraints (skipped 72 transitions) in 11 ms.
[2025-06-01 16:51:35] [INFO ] Added : 27 causal constraints over 8 iterations in 150 ms. Result :sat
Minimization took 61 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[226] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[226] Max Struct:[+inf]
Support contains 1 out of 82 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 82/82 places, 208/208 transitions.
Applied a total of 0 rules in 7 ms. Remains 82 /82 variables (removed 0) and now considering 208/208 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 7 ms. Remains : 82/82 places, 208/208 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 82/82 places, 208/208 transitions.
Applied a total of 0 rules in 3 ms. Remains 82 /82 variables (removed 0) and now considering 208/208 (removed 0) transitions.
[2025-06-01 16:51:36] [INFO ] Flow matrix only has 128 transitions (discarded 80 similar events)
[2025-06-01 16:51:36] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-01 16:51:36] [INFO ] Implicit Places using invariants in 163 ms returned []
[2025-06-01 16:51:36] [INFO ] Flow matrix only has 128 transitions (discarded 80 similar events)
[2025-06-01 16:51:36] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-01 16:51:36] [INFO ] State equation strengthened by 18 read => feed constraints.
[2025-06-01 16:51:36] [INFO ] Implicit Places using invariants and state equation in 342 ms returned []
Implicit Place search using SMT with State Equation took 507 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-01 16:51:36] [INFO ] Redundant transitions in 0 ms returned []
Running 206 sub problems to find dead transitions.
[2025-06-01 16:51:36] [INFO ] Flow matrix only has 128 transitions (discarded 80 similar events)
[2025-06-01 16:51:36] [INFO ] Invariant cache hit.
[2025-06-01 16:51:36] [INFO ] State equation strengthened by 18 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/82 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 206 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/82 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 206 unsolved
At refinement iteration 2 (OVERLAPS) 128/210 variables, 82/85 constraints. Problems are: Problem set: 0 solved, 206 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/210 variables, 18/103 constraints. Problems are: Problem set: 0 solved, 206 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/210 variables, 0/103 constraints. Problems are: Problem set: 0 solved, 206 unsolved
At refinement iteration 5 (OVERLAPS) 0/210 variables, 0/103 constraints. Problems are: Problem set: 0 solved, 206 unsolved
No progress, stopping.
After SMT solving in domain Real declared 210/210 variables, and 103 constraints, problems are : Problem set: 0 solved, 206 unsolved in 5954 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 82/82 constraints, ReadFeed: 18/18 constraints, PredecessorRefiner: 206/206 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 206 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/82 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 206 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/82 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 206 unsolved
At refinement iteration 2 (OVERLAPS) 128/210 variables, 82/85 constraints. Problems are: Problem set: 0 solved, 206 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/210 variables, 18/103 constraints. Problems are: Problem set: 0 solved, 206 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/210 variables, 206/309 constraints. Problems are: Problem set: 0 solved, 206 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:51:47] [INFO ] Deduced a trap along path composed of 3 places in 22 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:51:47] [INFO ] Deduced a trap along path composed of 3 places in 21 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:51:47] [INFO ] Deduced a trap along path composed of 3 places in 19 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:51:48] [INFO ] Deduced a trap along path composed of 3 places in 25 ms of which 0 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:51:49] [INFO ] Deduced a trap along path composed of 3 places in 17 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:51:49] [INFO ] Deduced a trap along path composed of 3 places in 21 ms of which 1 ms to minimize.
At refinement iteration 5 (INCLUDED_ONLY) 0/210 variables, 6/315 constraints. Problems are: Problem set: 0 solved, 206 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/210 variables, 0/315 constraints. Problems are: Problem set: 0 solved, 206 unsolved
At refinement iteration 7 (OVERLAPS) 0/210 variables, 0/315 constraints. Problems are: Problem set: 0 solved, 206 unsolved
No progress, stopping.
After SMT solving in domain Int declared 210/210 variables, and 315 constraints, problems are : Problem set: 0 solved, 206 unsolved in 22495 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 82/82 constraints, ReadFeed: 18/18 constraints, PredecessorRefiner: 206/206 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 6/6 constraints]
After SMT, in 28501ms problems are : Problem set: 0 solved, 206 unsolved
Search for dead transitions found 0 dead transitions in 28502ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 29019 ms. Remains : 82/82 places, 208/208 transitions.
[2025-06-01 16:52:05] [INFO ] Flow matrix only has 128 transitions (discarded 80 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {29=1, 32=1, 34=1, 63=1, 94=1, 123=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {26=1, 60=1, 91=1, 123=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 34 ms. (steps per millisecond=294 ) properties (out of 1) seen :[4]
Current structural bounds on expressions (after cover walk) : Max Seen:[226] Max Struct:[+inf]
[2025-06-01 16:52:05] [INFO ] Flow matrix only has 128 transitions (discarded 80 similar events)
[2025-06-01 16:52:05] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[226] Max Struct:[+inf]
RANDOM walk for 1000001 steps (2 resets) in 1423 ms. (702 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 845 ms. (1182 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[245] Max Struct:[+inf]
[2025-06-01 16:52:07] [INFO ] Flow matrix only has 128 transitions (discarded 80 similar events)
[2025-06-01 16:52:07] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:52:07] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 16:52:07] [INFO ] [Real]Absence check using state equation in 63 ms returned sat
[2025-06-01 16:52:07] [INFO ] State equation strengthened by 18 read => feed constraints.
[2025-06-01 16:52:07] [INFO ] [Real]Added 18 Read/Feed constraints in 9 ms returned sat
[2025-06-01 16:52:07] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:52:07] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 16:52:08] [INFO ] [Nat]Absence check using state equation in 46 ms returned sat
[2025-06-01 16:52:08] [INFO ] [Nat]Added 18 Read/Feed constraints in 6 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:52:08] [INFO ] Deduced a trap composed of 14 places in 104 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:52:08] [INFO ] Deduced a trap composed of 14 places in 118 ms of which 14 ms to minimize.
[2025-06-01 16:52:08] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 243 ms
[2025-06-01 16:52:08] [INFO ] Computed and/alt/rep : 60/196/54 causal constraints (skipped 72 transitions) in 14 ms.
[2025-06-01 16:52:08] [INFO ] Added : 27 causal constraints over 8 iterations in 137 ms. Result :sat
Minimization took 39 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[245] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[245] Max Struct:[+inf]
Support contains 1 out of 82 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 82/82 places, 208/208 transitions.
Applied a total of 0 rules in 6 ms. Remains 82 /82 variables (removed 0) and now considering 208/208 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 7 ms. Remains : 82/82 places, 208/208 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 82/82 places, 208/208 transitions.
Applied a total of 0 rules in 3 ms. Remains 82 /82 variables (removed 0) and now considering 208/208 (removed 0) transitions.
[2025-06-01 16:52:09] [INFO ] Flow matrix only has 128 transitions (discarded 80 similar events)
[2025-06-01 16:52:09] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-01 16:52:09] [INFO ] Implicit Places using invariants in 124 ms returned []
[2025-06-01 16:52:09] [INFO ] Flow matrix only has 128 transitions (discarded 80 similar events)
[2025-06-01 16:52:09] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-01 16:52:09] [INFO ] State equation strengthened by 18 read => feed constraints.
[2025-06-01 16:52:09] [INFO ] Implicit Places using invariants and state equation in 248 ms returned []
Implicit Place search using SMT with State Equation took 375 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-01 16:52:09] [INFO ] Redundant transitions in 1 ms returned []
Running 206 sub problems to find dead transitions.
[2025-06-01 16:52:09] [INFO ] Flow matrix only has 128 transitions (discarded 80 similar events)
[2025-06-01 16:52:09] [INFO ] Invariant cache hit.
[2025-06-01 16:52:09] [INFO ] State equation strengthened by 18 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/82 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 206 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/82 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 206 unsolved
At refinement iteration 2 (OVERLAPS) 128/210 variables, 82/85 constraints. Problems are: Problem set: 0 solved, 206 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/210 variables, 18/103 constraints. Problems are: Problem set: 0 solved, 206 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/210 variables, 0/103 constraints. Problems are: Problem set: 0 solved, 206 unsolved
At refinement iteration 5 (OVERLAPS) 0/210 variables, 0/103 constraints. Problems are: Problem set: 0 solved, 206 unsolved
No progress, stopping.
After SMT solving in domain Real declared 210/210 variables, and 103 constraints, problems are : Problem set: 0 solved, 206 unsolved in 6922 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 82/82 constraints, ReadFeed: 18/18 constraints, PredecessorRefiner: 206/206 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 206 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/82 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 206 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/82 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 206 unsolved
At refinement iteration 2 (OVERLAPS) 128/210 variables, 82/85 constraints. Problems are: Problem set: 0 solved, 206 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/210 variables, 18/103 constraints. Problems are: Problem set: 0 solved, 206 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/210 variables, 206/309 constraints. Problems are: Problem set: 0 solved, 206 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:52:20] [INFO ] Deduced a trap along path composed of 3 places in 26 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:52:20] [INFO ] Deduced a trap along path composed of 3 places in 23 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:52:21] [INFO ] Deduced a trap along path composed of 3 places in 22 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:52:21] [INFO ] Deduced a trap along path composed of 3 places in 21 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:52:21] [INFO ] Deduced a trap along path composed of 3 places in 26 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:52:22] [INFO ] Deduced a trap along path composed of 3 places in 21 ms of which 1 ms to minimize.
At refinement iteration 5 (INCLUDED_ONLY) 0/210 variables, 6/315 constraints. Problems are: Problem set: 0 solved, 206 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/210 variables, 0/315 constraints. Problems are: Problem set: 0 solved, 206 unsolved
At refinement iteration 7 (OVERLAPS) 0/210 variables, 0/315 constraints. Problems are: Problem set: 0 solved, 206 unsolved
No progress, stopping.
After SMT solving in domain Int declared 210/210 variables, and 315 constraints, problems are : Problem set: 0 solved, 206 unsolved in 17899 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 82/82 constraints, ReadFeed: 18/18 constraints, PredecessorRefiner: 206/206 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 6/6 constraints]
After SMT, in 24887ms problems are : Problem set: 0 solved, 206 unsolved
Search for dead transitions found 0 dead transitions in 24888ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 25274 ms. Remains : 82/82 places, 208/208 transitions.
[2025-06-01 16:52:34] [INFO ] Flow matrix only has 128 transitions (discarded 80 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {29=1, 32=1, 34=1, 63=1, 94=1, 123=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {26=1, 60=1, 91=1, 123=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 64 ms. (steps per millisecond=156 ) properties (out of 1) seen :[2147483647]
Current structural bounds on expressions (after cover walk) : Max Seen:[+inf] Max Struct:[+inf]
[2025-06-01 16:52:34] [INFO ] Flow matrix only has 128 transitions (discarded 80 similar events)
[2025-06-01 16:52:34] [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 1546 ms. (646 steps per ms)
FORMULA FunctionPointer-PT-b064-UpperBounds-13 +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 16:52:36] [INFO ] Flatten gal took : 8 ms
[2025-06-01 16:52:36] [INFO ] Flatten gal took : 7 ms
[2025-06-01 16:52:36] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality6583187002577437772.gal : 1 ms
[2025-06-01 16:52:36] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality15236026356130828129.prop : 0 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality6583187002577437772.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality15236026356130828129.prop' '--nowitness' '--gen-order' 'FOLLOW'

ITS runner timed out or was interrupted.
its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...329
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-b064-UpperBounds-13 in 98478 ms.
Starting property specific reduction for FunctionPointer-PT-b064-UpperBounds-15
Current structural bounds on expressions (Initially) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (Adding known information on max bounds.) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (Before main loop) : Max Seen:[0] Max Struct:[+inf]
[2025-06-01 16:52:36] [INFO ] Flow matrix only has 166 transitions (discarded 97 similar events)
// Phase 1: matrix 166 rows 104 cols
[2025-06-01 16:52:36] [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 19 ms. (500 steps per ms)
BEST_FIRST walk for 10001 steps (2 resets) in 8 ms. (1111 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[8] Max Struct:[+inf]
[2025-06-01 16:52:36] [INFO ] Flow matrix only has 166 transitions (discarded 97 similar events)
[2025-06-01 16:52:36] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-01 16:52:36] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 16:52:36] [INFO ] [Real]Absence check using state equation in 63 ms returned sat
[2025-06-01 16:52:36] [INFO ] State equation strengthened by 27 read => feed constraints.
[2025-06-01 16:52:36] [INFO ] [Real]Added 27 Read/Feed constraints in 10 ms returned sat
[2025-06-01 16:52:36] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-01 16:52:36] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 16:52:36] [INFO ] [Nat]Absence check using state equation in 82 ms returned sat
[2025-06-01 16:52:36] [INFO ] [Nat]Added 27 Read/Feed constraints in 12 ms returned sat
[2025-06-01 16:52:36] [INFO ] Computed and/alt/rep : 67/333/63 causal constraints (skipped 101 transitions) in 15 ms.
[2025-06-01 16:52:36] [INFO ] Added : 8 causal constraints over 3 iterations in 94 ms. Result :sat
Minimization took 66 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 104 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 104/104 places, 263/263 transitions.
Graph (complete) has 439 edges and 104 vertex of which 101 are kept as prefixes of interest. Removing 3 places using SCC suffix rule.0 ms
Discarding 3 places :
Also discarding 0 output transitions
Drop transitions (Empty/Sink Transition effects.) removed 5 transitions
Reduce isomorphic transitions removed 5 transitions.
Iterating post reduction 0 with 5 rules applied. Total rules applied 6 place count 101 transition count 258
Discarding 4 places :
Symmetric choice reduction at 1 with 4 rule applications. Total rules 10 place count 97 transition count 244
Iterating global reduction 1 with 4 rules applied. Total rules applied 14 place count 97 transition count 244
Discarding 4 places :
Symmetric choice reduction at 1 with 4 rule applications. Total rules 18 place count 93 transition count 234
Iterating global reduction 1 with 4 rules applied. Total rules applied 22 place count 93 transition count 234
Discarding 3 places :
Symmetric choice reduction at 1 with 3 rule applications. Total rules 25 place count 90 transition count 226
Iterating global reduction 1 with 3 rules applied. Total rules applied 28 place count 90 transition count 226
Discarding 3 places :
Symmetric choice reduction at 1 with 3 rule applications. Total rules 31 place count 87 transition count 220
Iterating global reduction 1 with 3 rules applied. Total rules applied 34 place count 87 transition count 220
Discarding 3 places :
Symmetric choice reduction at 1 with 3 rule applications. Total rules 37 place count 84 transition count 214
Iterating global reduction 1 with 3 rules applied. Total rules applied 40 place count 84 transition count 214
Discarding 3 places :
Symmetric choice reduction at 1 with 3 rule applications. Total rules 43 place count 81 transition count 208
Iterating global reduction 1 with 3 rules applied. Total rules applied 46 place count 81 transition count 208
Discarding 2 places :
Symmetric choice reduction at 1 with 2 rule applications. Total rules 48 place count 79 transition count 204
Iterating global reduction 1 with 2 rules applied. Total rules applied 50 place count 79 transition count 204
Discarding 2 places :
Symmetric choice reduction at 1 with 2 rule applications. Total rules 52 place count 77 transition count 200
Iterating global reduction 1 with 2 rules applied. Total rules applied 54 place count 77 transition count 200
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 55 place count 76 transition count 198
Iterating global reduction 1 with 1 rules applied. Total rules applied 56 place count 76 transition count 198
Applied a total of 56 rules in 19 ms. Remains 76 /104 variables (removed 28) and now considering 198/263 (removed 65) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 21 ms. Remains : 76/104 places, 198/263 transitions.
[2025-06-01 16:52:37] [INFO ] Flow matrix only has 118 transitions (discarded 80 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {26=1, 57=1, 86=1, 115=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {27=1, 58=1, 103=1, 117=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 33 ms. (steps per millisecond=303 ) properties (out of 1) seen :[3]
Current structural bounds on expressions (after cover walk) : Max Seen:[8] Max Struct:[+inf]
[2025-06-01 16:52:37] [INFO ] Flow matrix only has 118 transitions (discarded 80 similar events)
// Phase 1: matrix 118 rows 76 cols
[2025-06-01 16:52:37] [INFO ] Computed 3 invariants in 1 ms
Current structural bounds on expressions (after invariants) : Max Seen:[8] Max Struct:[+inf]
RANDOM walk for 1000001 steps (2 resets) in 1285 ms. (777 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 647 ms. (1543 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[625] Max Struct:[+inf]
[2025-06-01 16:52:39] [INFO ] Flow matrix only has 118 transitions (discarded 80 similar events)
[2025-06-01 16:52:39] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:52:39] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 16:52:39] [INFO ] [Real]Absence check using state equation in 54 ms returned sat
[2025-06-01 16:52:39] [INFO ] State equation strengthened by 15 read => feed constraints.
[2025-06-01 16:52:39] [INFO ] [Real]Added 15 Read/Feed constraints in 5 ms returned sat
[2025-06-01 16:52:39] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:52:39] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 16:52:39] [INFO ] [Nat]Absence check using state equation in 62 ms returned sat
[2025-06-01 16:52:39] [INFO ] [Nat]Added 15 Read/Feed constraints in 8 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:52:39] [INFO ] Deduced a trap composed of 13 places in 89 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:52:39] [INFO ] Deduced a trap composed of 20 places in 84 ms of which 7 ms to minimize.
[2025-06-01 16:52:39] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 201 ms
[2025-06-01 16:52:39] [INFO ] Computed and/alt/rep : 60/163/51 causal constraints (skipped 65 transitions) in 15 ms.
[2025-06-01 16:52:39] [INFO ] Added : 29 causal constraints over 6 iterations in 136 ms. Result :sat
Minimization took 61 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[625] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[625] Max Struct:[+inf]
Support contains 1 out of 76 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 76/76 places, 198/198 transitions.
Applied a total of 0 rules in 3 ms. Remains 76 /76 variables (removed 0) and now considering 198/198 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 3 ms. Remains : 76/76 places, 198/198 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 76/76 places, 198/198 transitions.
Applied a total of 0 rules in 2 ms. Remains 76 /76 variables (removed 0) and now considering 198/198 (removed 0) transitions.
[2025-06-01 16:52:41] [INFO ] Flow matrix only has 118 transitions (discarded 80 similar events)
[2025-06-01 16:52:41] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-01 16:52:42] [INFO ] Implicit Places using invariants in 118 ms returned []
[2025-06-01 16:52:42] [INFO ] Flow matrix only has 118 transitions (discarded 80 similar events)
[2025-06-01 16:52:42] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-01 16:52:42] [INFO ] State equation strengthened by 15 read => feed constraints.
[2025-06-01 16:52:42] [INFO ] Implicit Places using invariants and state equation in 247 ms returned []
Implicit Place search using SMT with State Equation took 367 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-01 16:52:42] [INFO ] Redundant transitions in 0 ms returned []
Running 196 sub problems to find dead transitions.
[2025-06-01 16:52:42] [INFO ] Flow matrix only has 118 transitions (discarded 80 similar events)
[2025-06-01 16:52:42] [INFO ] Invariant cache hit.
[2025-06-01 16:52:42] [INFO ] State equation strengthened by 15 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/76 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 196 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/76 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 196 unsolved
At refinement iteration 2 (OVERLAPS) 118/194 variables, 76/79 constraints. Problems are: Problem set: 0 solved, 196 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/194 variables, 15/94 constraints. Problems are: Problem set: 0 solved, 196 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/194 variables, 0/94 constraints. Problems are: Problem set: 0 solved, 196 unsolved
At refinement iteration 5 (OVERLAPS) 0/194 variables, 0/94 constraints. Problems are: Problem set: 0 solved, 196 unsolved
No progress, stopping.
After SMT solving in domain Real declared 194/194 variables, and 94 constraints, problems are : Problem set: 0 solved, 196 unsolved in 6314 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 76/76 constraints, ReadFeed: 15/15 constraints, PredecessorRefiner: 196/196 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 196 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/76 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 196 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/76 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 196 unsolved
At refinement iteration 2 (OVERLAPS) 118/194 variables, 76/79 constraints. Problems are: Problem set: 0 solved, 196 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/194 variables, 15/94 constraints. Problems are: Problem set: 0 solved, 196 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/194 variables, 196/290 constraints. Problems are: Problem set: 0 solved, 196 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:52:55] [INFO ] Deduced a trap along path composed of 3 places in 32 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:52:55] [INFO ] Deduced a trap along path composed of 3 places in 30 ms of which 1 ms to minimize.
At refinement iteration 5 (INCLUDED_ONLY) 0/194 variables, 2/292 constraints. Problems are: Problem set: 0 solved, 196 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:52:59] [INFO ] Deduced a trap along path composed of 3 places in 18 ms of which 0 ms to minimize.
At refinement iteration 6 (INCLUDED_ONLY) 0/194 variables, 1/293 constraints. Problems are: Problem set: 0 solved, 196 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/194 variables, 0/293 constraints. Problems are: Problem set: 0 solved, 196 unsolved
At refinement iteration 8 (OVERLAPS) 0/194 variables, 0/293 constraints. Problems are: Problem set: 0 solved, 196 unsolved
No progress, stopping.
After SMT solving in domain Int declared 194/194 variables, and 293 constraints, problems are : Problem set: 0 solved, 196 unsolved in 28366 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 76/76 constraints, ReadFeed: 15/15 constraints, PredecessorRefiner: 196/196 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 3/3 constraints]
After SMT, in 34727ms problems are : Problem set: 0 solved, 196 unsolved
Search for dead transitions found 0 dead transitions in 34727ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 35103 ms. Remains : 76/76 places, 198/198 transitions.
[2025-06-01 16:53:16] [INFO ] Flow matrix only has 118 transitions (discarded 80 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {26=1, 57=1, 86=1, 115=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {27=1, 58=1, 103=1, 117=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 33 ms. (steps per millisecond=303 ) properties (out of 1) seen :[3]
Current structural bounds on expressions (after cover walk) : Max Seen:[625] Max Struct:[+inf]
[2025-06-01 16:53:17] [INFO ] Flow matrix only has 118 transitions (discarded 80 similar events)
[2025-06-01 16:53:17] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[625] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 1400 ms. (713 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 653 ms. (1529 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[625] Max Struct:[+inf]
[2025-06-01 16:53:19] [INFO ] Flow matrix only has 118 transitions (discarded 80 similar events)
[2025-06-01 16:53:19] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:53:19] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 16:53:19] [INFO ] [Real]Absence check using state equation in 42 ms returned sat
[2025-06-01 16:53:19] [INFO ] State equation strengthened by 15 read => feed constraints.
[2025-06-01 16:53:19] [INFO ] [Real]Added 15 Read/Feed constraints in 6 ms returned sat
[2025-06-01 16:53:19] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-01 16:53:19] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 16:53:19] [INFO ] [Nat]Absence check using state equation in 43 ms returned sat
[2025-06-01 16:53:19] [INFO ] [Nat]Added 15 Read/Feed constraints in 4 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:53:19] [INFO ] Deduced a trap composed of 13 places in 71 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:53:19] [INFO ] Deduced a trap composed of 20 places in 73 ms of which 6 ms to minimize.
[2025-06-01 16:53:19] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 161 ms
[2025-06-01 16:53:19] [INFO ] Computed and/alt/rep : 60/163/51 causal constraints (skipped 65 transitions) in 7 ms.
[2025-06-01 16:53:19] [INFO ] Added : 29 causal constraints over 6 iterations in 81 ms. Result :sat
Minimization took 35 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[625] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[625] Max Struct:[+inf]
Support contains 1 out of 76 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 76/76 places, 198/198 transitions.
Applied a total of 0 rules in 6 ms. Remains 76 /76 variables (removed 0) and now considering 198/198 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 6 ms. Remains : 76/76 places, 198/198 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 76/76 places, 198/198 transitions.
Applied a total of 0 rules in 4 ms. Remains 76 /76 variables (removed 0) and now considering 198/198 (removed 0) transitions.
[2025-06-01 16:53:21] [INFO ] Flow matrix only has 118 transitions (discarded 80 similar events)
[2025-06-01 16:53:21] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-01 16:53:21] [INFO ] Implicit Places using invariants in 130 ms returned []
[2025-06-01 16:53:21] [INFO ] Flow matrix only has 118 transitions (discarded 80 similar events)
[2025-06-01 16:53:21] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-01 16:53:21] [INFO ] State equation strengthened by 15 read => feed constraints.
[2025-06-01 16:53:21] [INFO ] Implicit Places using invariants and state equation in 289 ms returned []
Implicit Place search using SMT with State Equation took 421 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-01 16:53:21] [INFO ] Redundant transitions in 1 ms returned []
Running 196 sub problems to find dead transitions.
[2025-06-01 16:53:21] [INFO ] Flow matrix only has 118 transitions (discarded 80 similar events)
[2025-06-01 16:53:21] [INFO ] Invariant cache hit.
[2025-06-01 16:53:21] [INFO ] State equation strengthened by 15 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/76 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 196 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/76 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 196 unsolved
At refinement iteration 2 (OVERLAPS) 118/194 variables, 76/79 constraints. Problems are: Problem set: 0 solved, 196 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/194 variables, 15/94 constraints. Problems are: Problem set: 0 solved, 196 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/194 variables, 0/94 constraints. Problems are: Problem set: 0 solved, 196 unsolved
At refinement iteration 5 (OVERLAPS) 0/194 variables, 0/94 constraints. Problems are: Problem set: 0 solved, 196 unsolved
No progress, stopping.
After SMT solving in domain Real declared 194/194 variables, and 94 constraints, problems are : Problem set: 0 solved, 196 unsolved in 6796 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 76/76 constraints, ReadFeed: 15/15 constraints, PredecessorRefiner: 196/196 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 196 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/76 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 196 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/76 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 196 unsolved
At refinement iteration 2 (OVERLAPS) 118/194 variables, 76/79 constraints. Problems are: Problem set: 0 solved, 196 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/194 variables, 15/94 constraints. Problems are: Problem set: 0 solved, 196 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/194 variables, 196/290 constraints. Problems are: Problem set: 0 solved, 196 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:53:35] [INFO ] Deduced a trap along path composed of 3 places in 37 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:53:35] [INFO ] Deduced a trap along path composed of 3 places in 42 ms of which 0 ms to minimize.
At refinement iteration 5 (INCLUDED_ONLY) 0/194 variables, 2/292 constraints. Problems are: Problem set: 0 solved, 196 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-01 16:53:39] [INFO ] Deduced a trap along path composed of 3 places in 35 ms of which 1 ms to minimize.
At refinement iteration 6 (INCLUDED_ONLY) 0/194 variables, 1/293 constraints. Problems are: Problem set: 0 solved, 196 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/194 variables, 0/293 constraints. Problems are: Problem set: 0 solved, 196 unsolved
At refinement iteration 8 (OVERLAPS) 0/194 variables, 0/293 constraints. Problems are: Problem set: 0 solved, 196 unsolved
No progress, stopping.
After SMT solving in domain Int declared 194/194 variables, and 293 constraints, problems are : Problem set: 0 solved, 196 unsolved in 29176 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 76/76 constraints, ReadFeed: 15/15 constraints, PredecessorRefiner: 196/196 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 3/3 constraints]
After SMT, in 36072ms problems are : Problem set: 0 solved, 196 unsolved
Search for dead transitions found 0 dead transitions in 36074ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 36505 ms. Remains : 76/76 places, 198/198 transitions.
[2025-06-01 16:53:57] [INFO ] Flow matrix only has 118 transitions (discarded 80 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {26=1, 57=1, 86=1, 115=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {27=1, 58=1, 103=1, 117=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 33 ms. (steps per millisecond=303 ) properties (out of 1) seen :[2147483647]
Current structural bounds on expressions (after cover walk) : Max Seen:[+inf] Max Struct:[+inf]
[2025-06-01 16:53:57] [INFO ] Flow matrix only has 118 transitions (discarded 80 similar events)
[2025-06-01 16:53:57] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[+inf] Max Struct:[+inf]
RANDOM walk for 1000002 steps (2 resets) in 1287 ms. (776 steps per ms)
FORMULA FunctionPointer-PT-b064-UpperBounds-15 +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 16:53:59] [INFO ] Flatten gal took : 8 ms
[2025-06-01 16:53:59] [INFO ] Flatten gal took : 7 ms
[2025-06-01 16:53:59] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality11354827803938988175.gal : 2 ms
[2025-06-01 16:53:59] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality1565103068648599245.prop : 0 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality11354827803938988175.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality1565103068648599245.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...329
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-b064-UpperBounds-15 in 82707 ms.
[2025-06-01 16:53:59] [INFO ] Flatten gal took : 13 ms
[2025-06-01 16:53:59] [INFO ] Applying decomposition
[2025-06-01 16:53:59] [INFO ] Flatten gal took : 9 ms
Converted graph to binary with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/convert-linux64' '-i' '/tmp/graph64598054010733812.txt' '-o' '/tmp/graph64598054010733812.bin' '-w' '/tmp/graph64598054010733812.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/louvain-linux64' '/tmp/graph64598054010733812.bin' '-l' '-1' '-v' '-w' '/tmp/graph64598054010733812.weights' '-q' '0' '-e' '0.001'
[2025-06-01 16:53:59] [INFO ] Decomposing Gal with order
[2025-06-01 16:53:59] [INFO ] Rewriting arrays to variables to allow decomposition.
[2025-06-01 16:53:59] [INFO ] Removed a total of 456 redundant transitions.
[2025-06-01 16:53:59] [INFO ] Flatten gal took : 27 ms
[2025-06-01 16:53:59] [INFO ] Fuse similar labels procedure discarded/fused a total of 140 labels/synchronizations in 10 ms.
[2025-06-01 16:53:59] [INFO ] Time to serialize gal into /tmp/UpperBounds12288169760265113010.gal : 2 ms
[2025-06-01 16:53:59] [INFO ] Time to serialize properties into /tmp/UpperBounds6483799628169906020.prop : 0 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/UpperBounds12288169760265113010.gal' '-t' 'CGAL' '-reachable-file' '/tmp/UpperBounds6483799628169906020.prop' '--nowitness'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...284
Loading property file /tmp/UpperBounds6483799628169906020.prop.
Detected timeout of ITS tools.
[2025-06-01 17:21:34] [INFO ] Flatten gal took : 10 ms
[2025-06-01 17:21:34] [INFO ] Time to serialize gal into /tmp/UpperBounds14939817273548847278.gal : 2 ms
[2025-06-01 17:21:34] [INFO ] Time to serialize properties into /tmp/UpperBounds18399077697446791738.prop : 0 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/UpperBounds14939817273548847278.gal' '-t' 'CGAL' '-reachable-file' '/tmp/UpperBounds18399077697446791738.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...306
Loading property file /tmp/UpperBounds18399077697446791738.prop.

BK_TIME_CONFINEMENT_REACHED

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

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

Sequence of Actions to be Executed by the VM

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

set -x
# this is for BenchKit: configuration of major elements for the test
export BK_INPUT="FunctionPointer-PT-b064"
export BK_EXAMINATION="UpperBounds"
export BK_TOOL="itstools"
export BK_RESULT_DIR="/tmp/BK_RESULTS/OUTPUTS"
export BK_TIME_CONFINEMENT="3600"
export BK_MEMORY_CONFINEMENT="16384"
export BK_BIN_PATH="/home/mcc/BenchKit/bin/"

# this is specific to your benchmark or test

export BIN_DIR="$HOME/BenchKit/bin"

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

# this is for BenchKit: explicit launching of the test
echo "====================================================================="
echo " Generated by BenchKit 2-5832"
echo " Executing tool itstools"
echo " Input is FunctionPointer-PT-b064, 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 r100-smll-174867007400101"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/FunctionPointer-PT-b064.tgz
mv FunctionPointer-PT-b064 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 ;