Execution Chart

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

Trace from the execution

Formatting '/data/fkordon/mcc2026-input.r159-tall-177961079800020.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2026-input.qcow2 backing_fmt=qcow2 cluster_size=65536 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
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=====================================================================
Generated by BenchKit 2-5973
Executing tool gold2025
Input is FunctionPointer-PT-c064, examination is UpperBounds
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r159-tall-177961079800020
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 4.6M
-rw-r--r-- 1 mcc users 6.0K Mar 7 07:30 CTLCardinality.txt
-rw-r--r-- 1 mcc users 59K Mar 7 07:30 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.6K Mar 7 07:30 CTLFireability.txt
-rw-r--r-- 1 mcc users 48K Mar 7 07:30 CTLFireability.xml
-rw-r--r-- 1 mcc users 3.7K Mar 15 10:26 LTLCardinality.txt
-rw-r--r-- 1 mcc users 25K Mar 15 10:26 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.4K Mar 15 10:26 LTLFireability.txt
-rw-r--r-- 1 mcc users 19K Mar 15 10:26 LTLFireability.xml
-rw-r--r-- 1 mcc users 13K Mar 7 07:30 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 133K Mar 7 07:30 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 7.7K Mar 7 07:30 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 60K Mar 7 07:30 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K Mar 15 10:26 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.8K Mar 15 10:26 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 equiv_col
-rw-r--r-- 1 mcc users 5 Mar 3 18:30 instance
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 iscolored
-rw-r--r-- 1 mcc users 4.2M Mar 3 18:30 model.pnml

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

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

The expected result is a vector of positive values
NUM_VECTOR

echo here is the order used to build the result vector(from xml file)
FORMULA_NAME FunctionPointer-PT-c064-UpperBounds-00
FORMULA_NAME FunctionPointer-PT-c064-UpperBounds-01
FORMULA_NAME FunctionPointer-PT-c064-UpperBounds-02
FORMULA_NAME FunctionPointer-PT-c064-UpperBounds-03
FORMULA_NAME FunctionPointer-PT-c064-UpperBounds-04
FORMULA_NAME FunctionPointer-PT-c064-UpperBounds-05
FORMULA_NAME FunctionPointer-PT-c064-UpperBounds-06
FORMULA_NAME FunctionPointer-PT-c064-UpperBounds-07
FORMULA_NAME FunctionPointer-PT-c064-UpperBounds-08
FORMULA_NAME FunctionPointer-PT-c064-UpperBounds-09
FORMULA_NAME FunctionPointer-PT-c064-UpperBounds-10
FORMULA_NAME FunctionPointer-PT-c064-UpperBounds-11
FORMULA_NAME FunctionPointer-PT-c064-UpperBounds-12
FORMULA_NAME FunctionPointer-PT-c064-UpperBounds-13
FORMULA_NAME FunctionPointer-PT-c064-UpperBounds-14
FORMULA_NAME FunctionPointer-PT-c064-UpperBounds-15

=== Now, execution of the tool begins

BK_START 1779707159592

Invoking MCC driver with
GOLD_TOOL=
BK_EXAMINATION=UpperBounds
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=FunctionPointer-PT-c064
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
UpperBounds PT
Running Version 202505121319
[2026-05-25 11:06:01] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, UpperBounds, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2026-05-25 11:06:01] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-25 11:06:01] [INFO ] Load time of PNML (sax parser for PT used): 368 ms
[2026-05-25 11:06:01] [INFO ] Transformed 2826 places.
[2026-05-25 11:06:01] [INFO ] Transformed 8960 transitions.
[2026-05-25 11:06:01] [INFO ] Parsed PT model containing 2826 places and 8960 transitions and 36096 arcs in 497 ms.
Parsed 16 properties from file /home/mcc/execution/UpperBounds.xml in 7 ms.
Deduced a syphon composed of 1198 places in 45 ms
Reduce places removed 1198 places and 2998 transitions.
FORMULA FunctionPointer-PT-c064-UpperBounds-00 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA FunctionPointer-PT-c064-UpperBounds-01 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA FunctionPointer-PT-c064-UpperBounds-02 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA FunctionPointer-PT-c064-UpperBounds-05 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA FunctionPointer-PT-c064-UpperBounds-07 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA FunctionPointer-PT-c064-UpperBounds-09 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA FunctionPointer-PT-c064-UpperBounds-11 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
Current structural bounds on expressions (Initially) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (Before main loop) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2026-05-25 11:06:01] [INFO ] Flow matrix only has 3540 transitions (discarded 2422 similar events)
// Phase 1: matrix 3540 rows 1628 cols
[2026-05-25 11:06:01] [INFO ] Computed 4 invariants in 112 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[64, +inf, +inf, +inf, +inf, 64, +inf, 64, 1]
RANDOM walk for 10012 steps (2 resets) in 203 ms. (49 steps per ms)
BEST_FIRST walk for 90008 steps (36 resets) in 381 ms. (235 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[1, 0, 0, 0, 0, 1, 0, 1, 0] Max Struct:[64, +inf, +inf, +inf, +inf, 64, +inf, 64, 1]
[2026-05-25 11:06:02] [INFO ] Flow matrix only has 3540 transitions (discarded 2422 similar events)
[2026-05-25 11:06:02] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 11:06:02] [INFO ] [Real]Absence check using 3 positive place invariants in 20 ms returned sat
[2026-05-25 11:06:02] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2026-05-25 11:06:03] [INFO ] [Real]Absence check using state equation in 799 ms returned sat
[2026-05-25 11:06:03] [INFO ] State equation strengthened by 479 read => feed constraints.
[2026-05-25 11:06:03] [INFO ] [Real]Added 479 Read/Feed constraints in 119 ms returned sat
[2026-05-25 11:06:04] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 11:06:04] [INFO ] [Nat]Absence check using 3 positive place invariants in 14 ms returned sat
[2026-05-25 11:06:04] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2026-05-25 11:06:04] [INFO ] [Nat]Absence check using state equation in 678 ms returned sat
[2026-05-25 11:06:05] [INFO ] [Nat]Added 479 Read/Feed constraints in 155 ms returned sat
[2026-05-25 11:06:06] [INFO ] Computed and/alt/rep : 351/504/351 causal constraints (skipped 3187 transitions) in 897 ms.
[2026-05-25 11:06:06] [INFO ] Added : 2 causal constraints over 1 iterations in 1393 ms. Result :sat
Minimization took 582 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 11:06:07] [INFO ] [Real]Absence check using 3 positive place invariants in 13 ms returned sat
[2026-05-25 11:06:07] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 2 ms returned sat
[2026-05-25 11:06:08] [INFO ] [Real]Absence check using state equation in 756 ms returned sat
[2026-05-25 11:06:08] [INFO ] [Real]Added 479 Read/Feed constraints in 174 ms returned sat
[2026-05-25 11:06:08] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 11:06:08] [INFO ] [Nat]Absence check using 3 positive place invariants in 15 ms returned sat
[2026-05-25 11:06:08] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2026-05-25 11:06:09] [INFO ] [Nat]Absence check using state equation in 745 ms returned sat
[2026-05-25 11:06:09] [INFO ] [Nat]Added 479 Read/Feed constraints in 103 ms returned sat
[2026-05-25 11:06:10] [INFO ] Computed and/alt/rep : 351/504/351 causal constraints (skipped 3187 transitions) in 1033 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 11:06:12] [INFO ] Deduced a trap composed of 133 places in 1454 ms of which 240 ms to minimize.
[2026-05-25 11:06:12] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 1686 ms
[2026-05-25 11:06:12] [INFO ] Added : 2 causal constraints over 1 iterations in 3268 ms. Result :sat
Minimization took 546 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 11:06:13] [INFO ] [Real]Absence check using 3 positive place invariants in 13 ms returned sat
[2026-05-25 11:06:13] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2026-05-25 11:06:14] [INFO ] [Real]Absence check using state equation in 694 ms returned sat
[2026-05-25 11:06:14] [INFO ] [Real]Added 479 Read/Feed constraints in 177 ms returned sat
[2026-05-25 11:06:14] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 11:06:14] [INFO ] [Nat]Absence check using 3 positive place invariants in 15 ms returned sat
[2026-05-25 11:06:14] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 0 ms returned sat
[2026-05-25 11:06:15] [INFO ] [Nat]Absence check using state equation in 691 ms returned sat
[2026-05-25 11:06:15] [INFO ] [Nat]Added 479 Read/Feed constraints in 122 ms returned sat
[2026-05-25 11:06:16] [INFO ] Computed and/alt/rep : 351/504/351 causal constraints (skipped 3187 transitions) in 598 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 11:06:18] [INFO ] Deduced a trap composed of 133 places in 1417 ms of which 236 ms to minimize.
[2026-05-25 11:06:18] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 1760 ms
[2026-05-25 11:06:18] [INFO ] Added : 2 causal constraints over 1 iterations in 2834 ms. Result :sat
Minimization took 582 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 11:06:19] [INFO ] [Real]Absence check using 3 positive place invariants in 13 ms returned sat
[2026-05-25 11:06:19] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 0 ms returned sat
[2026-05-25 11:06:20] [INFO ] [Real]Absence check using state equation in 720 ms returned sat
[2026-05-25 11:06:20] [INFO ] [Real]Added 479 Read/Feed constraints in 126 ms returned sat
[2026-05-25 11:06:20] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 11:06:20] [INFO ] [Nat]Absence check using 3 positive place invariants in 14 ms returned sat
[2026-05-25 11:06:20] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 7 ms returned sat
[2026-05-25 11:06:21] [INFO ] [Nat]Absence check using state equation in 652 ms returned sat
[2026-05-25 11:06:21] [INFO ] [Nat]Added 479 Read/Feed constraints in 144 ms returned sat
[2026-05-25 11:06:22] [INFO ] Computed and/alt/rep : 351/504/351 causal constraints (skipped 3187 transitions) in 570 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 11:06:23] [INFO ] Deduced a trap composed of 133 places in 1424 ms of which 241 ms to minimize.
[2026-05-25 11:06:24] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 1708 ms
[2026-05-25 11:06:24] [INFO ] Added : 2 causal constraints over 1 iterations in 2757 ms. Result :sat
Minimization took 575 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 11:06:25] [INFO ] [Real]Absence check using 3 positive place invariants in 13 ms returned sat
[2026-05-25 11:06:25] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 2 ms returned sat
[2026-05-25 11:06:25] [INFO ] [Real]Absence check using state equation in 702 ms returned sat
[2026-05-25 11:06:26] [INFO ] [Real]Added 479 Read/Feed constraints in 154 ms returned sat
[2026-05-25 11:06:26] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 11:06:26] [INFO ] [Nat]Absence check using 3 positive place invariants in 15 ms returned sat
[2026-05-25 11:06:26] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2026-05-25 11:06:27] [INFO ] [Nat]Absence check using state equation in 723 ms returned sat
[2026-05-25 11:06:27] [INFO ] [Nat]Added 479 Read/Feed constraints in 105 ms returned sat
[2026-05-25 11:06:27] [INFO ] Computed and/alt/rep : 351/504/351 causal constraints (skipped 3187 transitions) in 578 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 11:06:29] [INFO ] Deduced a trap composed of 133 places in 1421 ms of which 242 ms to minimize.
[2026-05-25 11:06:29] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 1636 ms
[2026-05-25 11:06:29] [INFO ] Added : 2 causal constraints over 1 iterations in 2664 ms. Result :sat
Minimization took 577 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 11:06:30] [INFO ] [Real]Absence check using 3 positive place invariants in 13 ms returned sat
[2026-05-25 11:06:30] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 3 ms returned sat
[2026-05-25 11:06:31] [INFO ] [Real]Absence check using state equation in 721 ms returned sat
[2026-05-25 11:06:31] [INFO ] [Real]Added 479 Read/Feed constraints in 205 ms returned sat
[2026-05-25 11:06:31] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 11:06:31] [INFO ] [Nat]Absence check using 3 positive place invariants in 23 ms returned sat
[2026-05-25 11:06:31] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2026-05-25 11:06:32] [INFO ] [Nat]Absence check using state equation in 739 ms returned sat
[2026-05-25 11:06:32] [INFO ] [Nat]Added 479 Read/Feed constraints in 277 ms returned sat
[2026-05-25 11:06:33] [INFO ] Computed and/alt/rep : 351/504/351 causal constraints (skipped 3187 transitions) in 590 ms.
[2026-05-25 11:06:33] [INFO ] Added : 1 causal constraints over 1 iterations in 946 ms. Result :sat
Minimization took 579 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 11:06:34] [INFO ] [Real]Absence check using 3 positive place invariants in 28 ms returned sat
[2026-05-25 11:06:34] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2026-05-25 11:06:35] [INFO ] [Real]Absence check using state equation in 689 ms returned sat
[2026-05-25 11:06:35] [INFO ] [Real]Added 479 Read/Feed constraints in 113 ms returned sat
[2026-05-25 11:06:35] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 11:06:35] [INFO ] [Nat]Absence check using 3 positive place invariants in 14 ms returned sat
[2026-05-25 11:06:35] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2026-05-25 11:06:36] [INFO ] [Nat]Absence check using state equation in 694 ms returned sat
[2026-05-25 11:06:36] [INFO ] [Nat]Added 479 Read/Feed constraints in 98 ms returned sat
[2026-05-25 11:06:37] [INFO ] Computed and/alt/rep : 351/504/351 causal constraints (skipped 3187 transitions) in 653 ms.
[2026-05-25 11:06:37] [INFO ] Added : 1 causal constraints over 1 iterations in 968 ms. Result :sat
Minimization took 576 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 11:06:38] [INFO ] [Real]Absence check using 3 positive place invariants in 14 ms returned sat
[2026-05-25 11:06:38] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2026-05-25 11:06:39] [INFO ] [Real]Absence check using state equation in 722 ms returned sat
[2026-05-25 11:06:39] [INFO ] [Real]Added 479 Read/Feed constraints in 230 ms returned sat
[2026-05-25 11:06:39] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 11:06:39] [INFO ] [Nat]Absence check using 3 positive place invariants in 14 ms returned sat
[2026-05-25 11:06:39] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2026-05-25 11:06:40] [INFO ] [Nat]Absence check using state equation in 703 ms returned sat
[2026-05-25 11:06:40] [INFO ] [Nat]Added 479 Read/Feed constraints in 168 ms returned sat
[2026-05-25 11:06:41] [INFO ] Computed and/alt/rep : 351/504/351 causal constraints (skipped 3187 transitions) in 545 ms.
[2026-05-25 11:06:41] [INFO ] Added : 3 causal constraints over 1 iterations in 901 ms. Result :sat
Minimization took 575 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 11:06:42] [INFO ] [Real]Absence check using 3 positive place invariants in 13 ms returned sat
[2026-05-25 11:06:42] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2026-05-25 11:06:43] [INFO ] [Real]Absence check using state equation in 673 ms returned sat
[2026-05-25 11:06:43] [INFO ] [Real]Added 479 Read/Feed constraints in 172 ms returned sat
[2026-05-25 11:06:43] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 11:06:43] [INFO ] [Nat]Absence check using 3 positive place invariants in 14 ms returned sat
[2026-05-25 11:06:43] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 0 ms returned sat
[2026-05-25 11:06:44] [INFO ] [Nat]Absence check using state equation in 683 ms returned sat
[2026-05-25 11:06:44] [INFO ] [Nat]Added 479 Read/Feed constraints in 77 ms returned sat
[2026-05-25 11:06:45] [INFO ] Computed and/alt/rep : 351/504/351 causal constraints (skipped 3187 transitions) in 567 ms.
[2026-05-25 11:06:45] [INFO ] Added : 2 causal constraints over 1 iterations in 903 ms. Result :sat
Minimization took 575 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[1, 0, 0, 0, 0, 1, 0, 1, 0] Max Struct:[64, +inf, +inf, +inf, +inf, 64, +inf, 64, 1]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[1, 0, 0, 0, 0, 1, 0, 1, 0] Max Struct:[64, +inf, +inf, +inf, +inf, 64, +inf, 64, 1]
Support contains 9 out of 1628 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 1628/1628 places, 5962/5962 transitions.
Graph (complete) has 7332 edges and 1628 vertex of which 1419 are kept as prefixes of interest. Removing 209 places using SCC suffix rule.14 ms
Discarding 209 places :
Also discarding 0 output transitions
Drop transitions (Empty/Sink Transition effects.) removed 384 transitions
Reduce isomorphic transitions removed 384 transitions.
Iterating post reduction 0 with 384 rules applied. Total rules applied 385 place count 1419 transition count 5578
Discarding 300 places :
Symmetric choice reduction at 1 with 300 rule applications. Total rules 685 place count 1119 transition count 3296
Iterating global reduction 1 with 300 rules applied. Total rules applied 985 place count 1119 transition count 3296
Ensure Unique test removed 360 transitions
Reduce isomorphic transitions removed 360 transitions.
Iterating post reduction 1 with 360 rules applied. Total rules applied 1345 place count 1119 transition count 2936
Discarding 154 places :
Symmetric choice reduction at 2 with 154 rule applications. Total rules 1499 place count 965 transition count 2628
Iterating global reduction 2 with 154 rules applied. Total rules applied 1653 place count 965 transition count 2628
Ensure Unique test removed 68 transitions
Reduce isomorphic transitions removed 68 transitions.
Iterating post reduction 2 with 68 rules applied. Total rules applied 1721 place count 965 transition count 2560
Discarding 14 places :
Symmetric choice reduction at 3 with 14 rule applications. Total rules 1735 place count 951 transition count 2532
Iterating global reduction 3 with 14 rules applied. Total rules applied 1749 place count 951 transition count 2532
Discarding 14 places :
Symmetric choice reduction at 3 with 14 rule applications. Total rules 1763 place count 937 transition count 2504
Iterating global reduction 3 with 14 rules applied. Total rules applied 1777 place count 937 transition count 2504
Discarding 14 places :
Symmetric choice reduction at 3 with 14 rule applications. Total rules 1791 place count 923 transition count 2476
Iterating global reduction 3 with 14 rules applied. Total rules applied 1805 place count 923 transition count 2476
Discarding 14 places :
Symmetric choice reduction at 3 with 14 rule applications. Total rules 1819 place count 909 transition count 2448
Iterating global reduction 3 with 14 rules applied. Total rules applied 1833 place count 909 transition count 2448
Discarding 14 places :
Symmetric choice reduction at 3 with 14 rule applications. Total rules 1847 place count 895 transition count 2420
Iterating global reduction 3 with 14 rules applied. Total rules applied 1861 place count 895 transition count 2420
Discarding 14 places :
Symmetric choice reduction at 3 with 14 rule applications. Total rules 1875 place count 881 transition count 2392
Iterating global reduction 3 with 14 rules applied. Total rules applied 1889 place count 881 transition count 2392
Discarding 14 places :
Symmetric choice reduction at 3 with 14 rule applications. Total rules 1903 place count 867 transition count 2364
Iterating global reduction 3 with 14 rules applied. Total rules applied 1917 place count 867 transition count 2364
Discarding 59 places :
Symmetric choice reduction at 3 with 59 rule applications. Total rules 1976 place count 808 transition count 2142
Iterating global reduction 3 with 59 rules applied. Total rules applied 2035 place count 808 transition count 2142
Discarding 59 places :
Symmetric choice reduction at 3 with 59 rule applications. Total rules 2094 place count 749 transition count 1906
Iterating global reduction 3 with 59 rules applied. Total rules applied 2153 place count 749 transition count 1906
Discarding 59 places :
Symmetric choice reduction at 3 with 59 rule applications. Total rules 2212 place count 690 transition count 1774
Iterating global reduction 3 with 59 rules applied. Total rules applied 2271 place count 690 transition count 1774
Discarding 58 places :
Symmetric choice reduction at 3 with 58 rule applications. Total rules 2329 place count 632 transition count 1658
Iterating global reduction 3 with 58 rules applied. Total rules applied 2387 place count 632 transition count 1658
Discarding 58 places :
Symmetric choice reduction at 3 with 58 rule applications. Total rules 2445 place count 574 transition count 1542
Iterating global reduction 3 with 58 rules applied. Total rules applied 2503 place count 574 transition count 1542
Discarding 58 places :
Symmetric choice reduction at 3 with 58 rule applications. Total rules 2561 place count 516 transition count 1426
Iterating global reduction 3 with 58 rules applied. Total rules applied 2619 place count 516 transition count 1426
Discarding 57 places :
Symmetric choice reduction at 3 with 57 rule applications. Total rules 2676 place count 459 transition count 1312
Iterating global reduction 3 with 57 rules applied. Total rules applied 2733 place count 459 transition count 1312
Discarding 7 places :
Symmetric choice reduction at 3 with 7 rule applications. Total rules 2740 place count 452 transition count 1298
Iterating global reduction 3 with 7 rules applied. Total rules applied 2747 place count 452 transition count 1298
Drop transitions (Redundant composition of simpler transitions.) removed 10 transitions
Redundant transition composition rules discarded 10 transitions
Iterating global reduction 3 with 10 rules applied. Total rules applied 2757 place count 452 transition count 1288
Applied a total of 2757 rules in 1189 ms. Remains 452 /1628 variables (removed 1176) and now considering 1288/5962 (removed 4674) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 1201 ms. Remains : 452/1628 places, 1288/5962 transitions.
[2026-05-25 11:06:47] [INFO ] Flow matrix only has 740 transitions (discarded 548 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {216=1, 335=1, 537=1, 725=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {197=1, 316=1, 646=1, 736=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 190 ms. (steps per millisecond=52 ) properties (out of 9) seen :[3, 2, 2, 1, 2, 0, 0, 5, 1]
Current structural bounds on expressions (after cover walk) : Max Seen:[3, 2, 2, 1, 2, 1, 0, 5, 1] Max Struct:[64, +inf, +inf, +inf, +inf, 64, +inf, 64, 1]
[2026-05-25 11:06:47] [INFO ] Flow matrix only has 740 transitions (discarded 548 similar events)
// Phase 1: matrix 740 rows 452 cols
[2026-05-25 11:06:47] [INFO ] Computed 3 invariants in 6 ms
Current structural bounds on expressions (after invariants) : Max Seen:[3, 2, 2, 1, 2, 1, 0, 5, 1] Max Struct:[64, +inf, +inf, +inf, +inf, 64, +inf, 64, 1]
FORMULA FunctionPointer-PT-c064-UpperBounds-15 1 TECHNIQUES TOPOLOGICAL INITIAL_STATE
RANDOM walk for 1000000 steps (2 resets) in 2855 ms. (350 steps per ms)
BEST_FIRST walk for 8000008 steps (16 resets) in 11858 ms. (674 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[3, 56, 66, 91, 143, 2, 122, 5] Max Struct:[64, +inf, +inf, +inf, +inf, 64, +inf, 64]
[2026-05-25 11:07:02] [INFO ] Flow matrix only has 740 transitions (discarded 548 similar events)
[2026-05-25 11:07:02] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:07:02] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 11:07:02] [INFO ] [Real]Absence check using state equation in 144 ms returned sat
[2026-05-25 11:07:02] [INFO ] State equation strengthened by 89 read => feed constraints.
[2026-05-25 11:07:02] [INFO ] [Real]Added 89 Read/Feed constraints in 33 ms returned sat
[2026-05-25 11:07:02] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:07:02] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 11:07:03] [INFO ] [Nat]Absence check using state equation in 153 ms returned sat
[2026-05-25 11:07:03] [INFO ] [Nat]Added 89 Read/Feed constraints in 28 ms returned sat
[2026-05-25 11:07:03] [INFO ] Computed and/alt/rep : 219/1332/219 causal constraints (skipped 519 transitions) in 81 ms.
[2026-05-25 11:07:03] [INFO ] Added : 1 causal constraints over 1 iterations in 169 ms. Result :sat
Minimization took 364 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:07:03] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 11:07:03] [INFO ] [Real]Absence check using state equation in 160 ms returned sat
[2026-05-25 11:07:03] [INFO ] [Real]Added 89 Read/Feed constraints in 40 ms returned sat
[2026-05-25 11:07:03] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:07:03] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 11:07:04] [INFO ] [Nat]Absence check using state equation in 148 ms returned sat
[2026-05-25 11:07:04] [INFO ] [Nat]Added 89 Read/Feed constraints in 39 ms returned sat
[2026-05-25 11:07:04] [INFO ] Computed and/alt/rep : 219/1332/219 causal constraints (skipped 519 transitions) in 82 ms.
[2026-05-25 11:07:04] [INFO ] Added : 16 causal constraints over 4 iterations in 300 ms. Result :sat
Minimization took 276 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:07:04] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 11:07:05] [INFO ] [Real]Absence check using state equation in 143 ms returned sat
[2026-05-25 11:07:05] [INFO ] [Real]Added 89 Read/Feed constraints in 23 ms returned sat
[2026-05-25 11:07:05] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:07:05] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 11:07:05] [INFO ] [Nat]Absence check using state equation in 146 ms returned sat
[2026-05-25 11:07:05] [INFO ] [Nat]Added 89 Read/Feed constraints in 24 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 11:07:05] [INFO ] Deduced a trap composed of 75 places in 243 ms of which 27 ms to minimize.
[2026-05-25 11:07:05] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 298 ms
[2026-05-25 11:07:05] [INFO ] Computed and/alt/rep : 219/1332/219 causal constraints (skipped 519 transitions) in 80 ms.
[2026-05-25 11:07:05] [INFO ] Added : 10 causal constraints over 3 iterations in 372 ms. Result :sat
Minimization took 271 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:07:06] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 11:07:06] [INFO ] [Real]Absence check using state equation in 150 ms returned sat
[2026-05-25 11:07:06] [INFO ] [Real]Added 89 Read/Feed constraints in 52 ms returned sat
[2026-05-25 11:07:06] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:07:06] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 11:07:06] [INFO ] [Nat]Absence check using state equation in 140 ms returned sat
[2026-05-25 11:07:06] [INFO ] [Nat]Added 89 Read/Feed constraints in 29 ms returned sat
[2026-05-25 11:07:06] [INFO ] Computed and/alt/rep : 219/1332/219 causal constraints (skipped 519 transitions) in 78 ms.
[2026-05-25 11:07:07] [INFO ] Added : 25 causal constraints over 6 iterations in 376 ms. Result :sat
Minimization took 277 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:07:07] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 11:07:07] [INFO ] [Real]Absence check using state equation in 145 ms returned sat
[2026-05-25 11:07:07] [INFO ] [Real]Added 89 Read/Feed constraints in 29 ms returned sat
[2026-05-25 11:07:07] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:07:07] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 11:07:08] [INFO ] [Nat]Absence check using state equation in 142 ms returned sat
[2026-05-25 11:07:08] [INFO ] [Nat]Added 89 Read/Feed constraints in 33 ms returned sat
[2026-05-25 11:07:08] [INFO ] Computed and/alt/rep : 219/1332/219 causal constraints (skipped 519 transitions) in 80 ms.
[2026-05-25 11:07:08] [INFO ] Added : 11 causal constraints over 4 iterations in 343 ms. Result :sat
Minimization took 316 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:07:08] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 11:07:08] [INFO ] [Real]Absence check using state equation in 142 ms returned sat
[2026-05-25 11:07:09] [INFO ] [Real]Added 89 Read/Feed constraints in 24 ms returned sat
[2026-05-25 11:07:09] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:07:09] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 11:07:09] [INFO ] [Nat]Absence check using state equation in 135 ms returned sat
[2026-05-25 11:07:09] [INFO ] [Nat]Added 89 Read/Feed constraints in 49 ms returned sat
[2026-05-25 11:07:09] [INFO ] Computed and/alt/rep : 219/1332/219 causal constraints (skipped 519 transitions) in 80 ms.
[2026-05-25 11:07:09] [INFO ] Added : 1 causal constraints over 1 iterations in 171 ms. Result :sat
Minimization took 290 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:07:09] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 11:07:09] [INFO ] [Real]Absence check using state equation in 139 ms returned sat
[2026-05-25 11:07:10] [INFO ] [Real]Added 89 Read/Feed constraints in 65 ms returned sat
[2026-05-25 11:07:10] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:07:10] [INFO ] [Nat]Absence check using 3 positive place invariants in 6 ms returned sat
[2026-05-25 11:07:10] [INFO ] [Nat]Absence check using state equation in 151 ms returned sat
[2026-05-25 11:07:10] [INFO ] [Nat]Added 89 Read/Feed constraints in 35 ms returned sat
[2026-05-25 11:07:10] [INFO ] Computed and/alt/rep : 219/1332/219 causal constraints (skipped 519 transitions) in 78 ms.
[2026-05-25 11:07:10] [INFO ] Added : 12 causal constraints over 4 iterations in 287 ms. Result :sat
Minimization took 267 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:07:11] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 11:07:11] [INFO ] [Real]Absence check using state equation in 149 ms returned sat
[2026-05-25 11:07:11] [INFO ] [Real]Added 89 Read/Feed constraints in 23 ms returned sat
[2026-05-25 11:07:11] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:07:11] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 11:07:11] [INFO ] [Nat]Absence check using state equation in 145 ms returned sat
[2026-05-25 11:07:11] [INFO ] [Nat]Added 89 Read/Feed constraints in 29 ms returned sat
[2026-05-25 11:07:11] [INFO ] Computed and/alt/rep : 219/1332/219 causal constraints (skipped 519 transitions) in 79 ms.
[2026-05-25 11:07:11] [INFO ] Added : 1 causal constraints over 1 iterations in 177 ms. Result :sat
Minimization took 265 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[3, 56, 66, 91, 143, 2, 122, 5] Max Struct:[64, +inf, +inf, +inf, +inf, 64, +inf, 64]
FORMULA FunctionPointer-PT-c064-UpperBounds-12 64 TECHNIQUES TOPOLOGICAL PARIKH_WALK
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[63, 56, 66, 91, 143, 122, 63] Max Struct:[64, +inf, +inf, +inf, +inf, +inf, 64]
Support contains 7 out of 452 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 452/452 places, 1288/1288 transitions.
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 1 place count 451 transition count 1286
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 451 transition count 1286
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 3 place count 450 transition count 1284
Iterating global reduction 0 with 1 rules applied. Total rules applied 4 place count 450 transition count 1284
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 5 place count 449 transition count 1282
Iterating global reduction 0 with 1 rules applied. Total rules applied 6 place count 449 transition count 1282
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 7 place count 448 transition count 1280
Iterating global reduction 0 with 1 rules applied. Total rules applied 8 place count 448 transition count 1280
Applied a total of 8 rules in 89 ms. Remains 448 /452 variables (removed 4) and now considering 1280/1288 (removed 8) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 89 ms. Remains : 448/452 places, 1280/1288 transitions.
[2026-05-25 11:07:13] [INFO ] Flow matrix only has 733 transitions (discarded 547 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {244=1, 360=1, 689=1, 732=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {252=1, 368=1, 697=1, 728=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 161 ms. (steps per millisecond=62 ) properties (out of 7) seen :[2, 1, 4, 2, 3, 3, 2]
Current structural bounds on expressions (after cover walk) : Max Seen:[63, 56, 66, 91, 143, 122, 63] Max Struct:[64, +inf, +inf, +inf, +inf, +inf, 64]
[2026-05-25 11:07:13] [INFO ] Flow matrix only has 733 transitions (discarded 547 similar events)
// Phase 1: matrix 733 rows 448 cols
[2026-05-25 11:07:13] [INFO ] Computed 3 invariants in 11 ms
Current structural bounds on expressions (after invariants) : Max Seen:[63, 56, 66, 91, 143, 122, 63] Max Struct:[64, +inf, +inf, +inf, +inf, +inf, 64]
RANDOM walk for 1000001 steps (2 resets) in 2862 ms. (349 steps per ms)
BEST_FIRST walk for 7000007 steps (14 resets) in 10182 ms. (687 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[63, 56, 73, 129, 143, 213, 63] Max Struct:[64, +inf, +inf, +inf, +inf, +inf, 64]
[2026-05-25 11:07:26] [INFO ] Flow matrix only has 733 transitions (discarded 547 similar events)
[2026-05-25 11:07:26] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:07:26] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 11:07:26] [INFO ] [Real]Absence check using state equation in 153 ms returned sat
[2026-05-25 11:07:26] [INFO ] State equation strengthened by 86 read => feed constraints.
[2026-05-25 11:07:26] [INFO ] [Real]Added 86 Read/Feed constraints in 44 ms returned sat
[2026-05-25 11:07:26] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:07:26] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 11:07:27] [INFO ] [Nat]Absence check using state equation in 152 ms returned sat
[2026-05-25 11:07:27] [INFO ] [Nat]Added 86 Read/Feed constraints in 41 ms returned sat
[2026-05-25 11:07:27] [INFO ] Computed and/alt/rep : 345/2340/345 causal constraints (skipped 386 transitions) in 77 ms.
[2026-05-25 11:07:27] [INFO ] Added : 2 causal constraints over 1 iterations in 173 ms. Result :sat
Minimization took 265 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:07:27] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 11:07:27] [INFO ] [Real]Absence check using state equation in 143 ms returned sat
[2026-05-25 11:07:27] [INFO ] [Real]Added 86 Read/Feed constraints in 47 ms returned sat
[2026-05-25 11:07:27] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:07:28] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 11:07:28] [INFO ] [Nat]Absence check using state equation in 141 ms returned sat
[2026-05-25 11:07:28] [INFO ] [Nat]Added 86 Read/Feed constraints in 50 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 11:07:28] [INFO ] Deduced a trap composed of 74 places in 239 ms of which 26 ms to minimize.
[2026-05-25 11:07:28] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 286 ms
[2026-05-25 11:07:28] [INFO ] Computed and/alt/rep : 345/2340/345 causal constraints (skipped 386 transitions) in 75 ms.
[2026-05-25 11:07:28] [INFO ] Added : 18 causal constraints over 4 iterations in 306 ms. Result :sat
Minimization took 249 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:07:29] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 11:07:29] [INFO ] [Real]Absence check using state equation in 150 ms returned sat
[2026-05-25 11:07:29] [INFO ] [Real]Added 86 Read/Feed constraints in 33 ms returned sat
[2026-05-25 11:07:29] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:07:29] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 11:07:29] [INFO ] [Nat]Absence check using state equation in 136 ms returned sat
[2026-05-25 11:07:29] [INFO ] [Nat]Added 86 Read/Feed constraints in 21 ms returned sat
[2026-05-25 11:07:29] [INFO ] Computed and/alt/rep : 345/2340/345 causal constraints (skipped 386 transitions) in 75 ms.
[2026-05-25 11:07:29] [INFO ] Added : 8 causal constraints over 2 iterations in 251 ms. Result :sat
Minimization took 258 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:07:30] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 11:07:30] [INFO ] [Real]Absence check using state equation in 132 ms returned sat
[2026-05-25 11:07:30] [INFO ] [Real]Added 86 Read/Feed constraints in 22 ms returned sat
[2026-05-25 11:07:30] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:07:30] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 11:07:30] [INFO ] [Nat]Absence check using state equation in 134 ms returned sat
[2026-05-25 11:07:30] [INFO ] [Nat]Added 86 Read/Feed constraints in 34 ms returned sat
[2026-05-25 11:07:30] [INFO ] Computed and/alt/rep : 345/2340/345 causal constraints (skipped 386 transitions) in 84 ms.
[2026-05-25 11:07:30] [INFO ] Added : 7 causal constraints over 2 iterations in 257 ms. Result :sat
Minimization took 257 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:07:31] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 11:07:31] [INFO ] [Real]Absence check using state equation in 141 ms returned sat
[2026-05-25 11:07:31] [INFO ] [Real]Added 86 Read/Feed constraints in 36 ms returned sat
[2026-05-25 11:07:31] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:07:31] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 11:07:31] [INFO ] [Nat]Absence check using state equation in 150 ms returned sat
[2026-05-25 11:07:31] [INFO ] [Nat]Added 86 Read/Feed constraints in 37 ms returned sat
[2026-05-25 11:07:31] [INFO ] Computed and/alt/rep : 345/2340/345 causal constraints (skipped 386 transitions) in 86 ms.
[2026-05-25 11:07:31] [INFO ] Added : 4 causal constraints over 1 iterations in 204 ms. Result :sat
Minimization took 268 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:07:32] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 11:07:32] [INFO ] [Real]Absence check using state equation in 134 ms returned sat
[2026-05-25 11:07:32] [INFO ] [Real]Added 86 Read/Feed constraints in 26 ms returned sat
[2026-05-25 11:07:32] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:07:32] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 11:07:32] [INFO ] [Nat]Absence check using state equation in 136 ms returned sat
[2026-05-25 11:07:32] [INFO ] [Nat]Added 86 Read/Feed constraints in 28 ms returned sat
[2026-05-25 11:07:32] [INFO ] Computed and/alt/rep : 345/2340/345 causal constraints (skipped 386 transitions) in 78 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 11:07:33] [INFO ] Deduced a trap composed of 74 places in 231 ms of which 35 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 11:07:33] [INFO ] Deduced a trap composed of 132 places in 250 ms of which 38 ms to minimize.
[2026-05-25 11:07:33] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 592 ms
[2026-05-25 11:07:33] [INFO ] Added : 5 causal constraints over 2 iterations in 873 ms. Result :sat
Minimization took 257 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:07:33] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 11:07:34] [INFO ] [Real]Absence check using state equation in 156 ms returned sat
[2026-05-25 11:07:34] [INFO ] [Real]Added 86 Read/Feed constraints in 32 ms returned sat
[2026-05-25 11:07:34] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:07:34] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 11:07:34] [INFO ] [Nat]Absence check using state equation in 143 ms returned sat
[2026-05-25 11:07:34] [INFO ] [Nat]Added 86 Read/Feed constraints in 35 ms returned sat
[2026-05-25 11:07:34] [INFO ] Computed and/alt/rep : 345/2340/345 causal constraints (skipped 386 transitions) in 78 ms.
[2026-05-25 11:07:34] [INFO ] Added : 2 causal constraints over 1 iterations in 161 ms. Result :sat
Minimization took 266 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[63, 56, 73, 129, 143, 213, 63] Max Struct:[64, +inf, +inf, +inf, +inf, +inf, 64]
FORMULA FunctionPointer-PT-c064-UpperBounds-14 64 TECHNIQUES TOPOLOGICAL PARIKH_WALK
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[64, 56, 73, 129, 143, 213] Max Struct:[64, +inf, +inf, +inf, +inf, +inf]
Support contains 6 out of 448 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 448/448 places, 1280/1280 transitions.
Applied a total of 0 rules in 60 ms. Remains 448 /448 variables (removed 0) and now considering 1280/1280 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 60 ms. Remains : 448/448 places, 1280/1280 transitions.
[2026-05-25 11:07:37] [INFO ] Flow matrix only has 733 transitions (discarded 547 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {244=1, 360=1, 689=1, 732=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {252=1, 368=1, 697=1, 728=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 88 ms. (steps per millisecond=113 ) properties (out of 6) seen :[2, 2, 3, 2, 1, 1]
FORMULA FunctionPointer-PT-c064-UpperBounds-03 64 TECHNIQUES TOPOLOGICAL COVER_WALK
Current structural bounds on expressions (after cover walk) : Max Seen:[56, 73, 129, 143, 213] Max Struct:[+inf, +inf, +inf, +inf, +inf]
[2026-05-25 11:07:37] [INFO ] Flow matrix only has 733 transitions (discarded 547 similar events)
[2026-05-25 11:07:37] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[56, 73, 129, 143, 213] Max Struct:[+inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 2759 ms. (362 steps per ms)
BEST_FIRST walk for 5000005 steps (10 resets) in 7088 ms. (705 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[56, 140, 129, 143, 213] Max Struct:[+inf, +inf, +inf, +inf, +inf]
[2026-05-25 11:07:47] [INFO ] Flow matrix only has 733 transitions (discarded 547 similar events)
[2026-05-25 11:07:47] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:07:47] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 11:07:47] [INFO ] [Real]Absence check using state equation in 145 ms returned sat
[2026-05-25 11:07:47] [INFO ] State equation strengthened by 86 read => feed constraints.
[2026-05-25 11:07:47] [INFO ] [Real]Added 86 Read/Feed constraints in 49 ms returned sat
[2026-05-25 11:07:47] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:07:47] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 11:07:47] [INFO ] [Nat]Absence check using state equation in 132 ms returned sat
[2026-05-25 11:07:47] [INFO ] [Nat]Added 86 Read/Feed constraints in 51 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 11:07:48] [INFO ] Deduced a trap composed of 74 places in 228 ms of which 26 ms to minimize.
[2026-05-25 11:07:48] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 290 ms
[2026-05-25 11:07:48] [INFO ] Computed and/alt/rep : 345/2340/345 causal constraints (skipped 386 transitions) in 85 ms.
[2026-05-25 11:07:48] [INFO ] Added : 18 causal constraints over 4 iterations in 315 ms. Result :sat
Minimization took 259 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:07:48] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 11:07:48] [INFO ] [Real]Absence check using state equation in 141 ms returned sat
[2026-05-25 11:07:49] [INFO ] [Real]Added 86 Read/Feed constraints in 35 ms returned sat
[2026-05-25 11:07:49] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:07:49] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 11:07:49] [INFO ] [Nat]Absence check using state equation in 139 ms returned sat
[2026-05-25 11:07:49] [INFO ] [Nat]Added 86 Read/Feed constraints in 21 ms returned sat
[2026-05-25 11:07:49] [INFO ] Computed and/alt/rep : 345/2340/345 causal constraints (skipped 386 transitions) in 81 ms.
[2026-05-25 11:07:49] [INFO ] Added : 8 causal constraints over 2 iterations in 264 ms. Result :sat
Minimization took 288 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:07:49] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 11:07:50] [INFO ] [Real]Absence check using state equation in 148 ms returned sat
[2026-05-25 11:07:50] [INFO ] [Real]Added 86 Read/Feed constraints in 23 ms returned sat
[2026-05-25 11:07:50] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:07:50] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 11:07:50] [INFO ] [Nat]Absence check using state equation in 142 ms returned sat
[2026-05-25 11:07:50] [INFO ] [Nat]Added 86 Read/Feed constraints in 33 ms returned sat
[2026-05-25 11:07:50] [INFO ] Computed and/alt/rep : 345/2340/345 causal constraints (skipped 386 transitions) in 79 ms.
[2026-05-25 11:07:50] [INFO ] Added : 7 causal constraints over 2 iterations in 237 ms. Result :sat
Minimization took 258 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:07:51] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 11:07:51] [INFO ] [Real]Absence check using state equation in 139 ms returned sat
[2026-05-25 11:07:51] [INFO ] [Real]Added 86 Read/Feed constraints in 35 ms returned sat
[2026-05-25 11:07:51] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:07:51] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 11:07:51] [INFO ] [Nat]Absence check using state equation in 135 ms returned sat
[2026-05-25 11:07:51] [INFO ] [Nat]Added 86 Read/Feed constraints in 36 ms returned sat
[2026-05-25 11:07:51] [INFO ] Computed and/alt/rep : 345/2340/345 causal constraints (skipped 386 transitions) in 74 ms.
[2026-05-25 11:07:51] [INFO ] Added : 4 causal constraints over 1 iterations in 183 ms. Result :sat
Minimization took 261 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:07:52] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 11:07:52] [INFO ] [Real]Absence check using state equation in 149 ms returned sat
[2026-05-25 11:07:52] [INFO ] [Real]Added 86 Read/Feed constraints in 27 ms returned sat
[2026-05-25 11:07:52] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:07:52] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 11:07:52] [INFO ] [Nat]Absence check using state equation in 131 ms returned sat
[2026-05-25 11:07:52] [INFO ] [Nat]Added 86 Read/Feed constraints in 27 ms returned sat
[2026-05-25 11:07:52] [INFO ] Computed and/alt/rep : 345/2340/345 causal constraints (skipped 386 transitions) in 83 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 11:07:52] [INFO ] Deduced a trap composed of 74 places in 214 ms of which 33 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 11:07:53] [INFO ] Deduced a trap composed of 132 places in 216 ms of which 38 ms to minimize.
[2026-05-25 11:07:53] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 524 ms
[2026-05-25 11:07:53] [INFO ] Added : 5 causal constraints over 2 iterations in 808 ms. Result :sat
Minimization took 262 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[56, 140, 129, 143, 213] Max Struct:[+inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[56, 140, 129, 143, 213] Max Struct:[+inf, +inf, +inf, +inf, +inf]
Support contains 5 out of 448 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 448/448 places, 1280/1280 transitions.
Applied a total of 0 rules in 47 ms. Remains 448 /448 variables (removed 0) and now considering 1280/1280 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 47 ms. Remains : 448/448 places, 1280/1280 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 448/448 places, 1280/1280 transitions.
Applied a total of 0 rules in 47 ms. Remains 448 /448 variables (removed 0) and now considering 1280/1280 (removed 0) transitions.
[2026-05-25 11:07:55] [INFO ] Flow matrix only has 733 transitions (discarded 547 similar events)
[2026-05-25 11:07:55] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 11:07:55] [INFO ] Implicit Places using invariants in 331 ms returned []
[2026-05-25 11:07:55] [INFO ] Flow matrix only has 733 transitions (discarded 547 similar events)
[2026-05-25 11:07:55] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 11:07:56] [INFO ] State equation strengthened by 86 read => feed constraints.
[2026-05-25 11:07:58] [INFO ] Implicit Places using invariants and state equation in 2138 ms returned []
Implicit Place search using SMT with State Equation took 2471 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-25 11:07:58] [INFO ] Redundant transitions in 81 ms returned []
Running 1278 sub problems to find dead transitions.
[2026-05-25 11:07:58] [INFO ] Flow matrix only has 733 transitions (discarded 547 similar events)
[2026-05-25 11:07:58] [INFO ] Invariant cache hit.
[2026-05-25 11:07:58] [INFO ] State equation strengthened by 86 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/448 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1278 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 11:08:14] [INFO ] Deduced a trap composed of 131 places in 94 ms of which 4 ms to minimize.
At refinement iteration 1 (INCLUDED_ONLY) 0/448 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1278 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 448/1181 variables, and 4 constraints, problems are : Problem set: 0 solved, 1278 unsolved in 30046 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/448 constraints, ReadFeed: 0/86 constraints, PredecessorRefiner: 1278/1278 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1278 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/448 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1278 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/448 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1278 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/448 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1278 unsolved
At refinement iteration 3 (OVERLAPS) 733/1181 variables, 448/452 constraints. Problems are: Problem set: 0 solved, 1278 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1181 variables, 86/538 constraints. Problems are: Problem set: 0 solved, 1278 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1181/1181 variables, and 1816 constraints, problems are : Problem set: 0 solved, 1278 unsolved in 30086 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 448/448 constraints, ReadFeed: 86/86 constraints, PredecessorRefiner: 1278/1278 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 62159ms problems are : Problem set: 0 solved, 1278 unsolved
Search for dead transitions found 0 dead transitions in 62175ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 64801 ms. Remains : 448/448 places, 1280/1280 transitions.
[2026-05-25 11:09:00] [INFO ] Flow matrix only has 733 transitions (discarded 547 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {244=1, 360=1, 689=1, 732=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {252=1, 368=1, 697=1, 728=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 99 ms. (steps per millisecond=101 ) properties (out of 5) seen :[2, 4, 1, 2, 4]
Current structural bounds on expressions (after cover walk) : Max Seen:[56, 140, 129, 143, 213] Max Struct:[+inf, +inf, +inf, +inf, +inf]
[2026-05-25 11:09:00] [INFO ] Flow matrix only has 733 transitions (discarded 547 similar events)
[2026-05-25 11:09:00] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[56, 140, 129, 143, 213] Max Struct:[+inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000002 steps (2 resets) in 2903 ms. (344 steps per ms)
BEST_FIRST walk for 5000004 steps (10 resets) in 7192 ms. (695 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[85, 140, 129, 143, 324] Max Struct:[+inf, +inf, +inf, +inf, +inf]
[2026-05-25 11:09:10] [INFO ] Flow matrix only has 733 transitions (discarded 547 similar events)
[2026-05-25 11:09:10] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:09:10] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 11:09:11] [INFO ] [Real]Absence check using state equation in 139 ms returned sat
[2026-05-25 11:09:11] [INFO ] State equation strengthened by 86 read => feed constraints.
[2026-05-25 11:09:11] [INFO ] [Real]Added 86 Read/Feed constraints in 38 ms returned sat
[2026-05-25 11:09:11] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:09:11] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 11:09:11] [INFO ] [Nat]Absence check using state equation in 149 ms returned sat
[2026-05-25 11:09:11] [INFO ] [Nat]Added 86 Read/Feed constraints in 42 ms returned sat
[2026-05-25 11:09:11] [INFO ] Computed and/alt/rep : 345/2340/345 causal constraints (skipped 386 transitions) in 79 ms.
[2026-05-25 11:09:11] [INFO ] Added : 26 causal constraints over 7 iterations in 385 ms. Result :sat
Minimization took 329 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:09:12] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 11:09:12] [INFO ] [Real]Absence check using state equation in 135 ms returned sat
[2026-05-25 11:09:12] [INFO ] [Real]Added 86 Read/Feed constraints in 35 ms returned sat
[2026-05-25 11:09:12] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:09:12] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 11:09:12] [INFO ] [Nat]Absence check using state equation in 134 ms returned sat
[2026-05-25 11:09:12] [INFO ] [Nat]Added 86 Read/Feed constraints in 20 ms returned sat
[2026-05-25 11:09:12] [INFO ] Computed and/alt/rep : 345/2340/345 causal constraints (skipped 386 transitions) in 75 ms.
[2026-05-25 11:09:12] [INFO ] Added : 8 causal constraints over 2 iterations in 259 ms. Result :sat
Minimization took 274 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:09:13] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 11:09:13] [INFO ] [Real]Absence check using state equation in 136 ms returned sat
[2026-05-25 11:09:13] [INFO ] [Real]Added 86 Read/Feed constraints in 26 ms returned sat
[2026-05-25 11:09:13] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:09:13] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 11:09:13] [INFO ] [Nat]Absence check using state equation in 137 ms returned sat
[2026-05-25 11:09:13] [INFO ] [Nat]Added 86 Read/Feed constraints in 37 ms returned sat
[2026-05-25 11:09:13] [INFO ] Computed and/alt/rep : 345/2340/345 causal constraints (skipped 386 transitions) in 83 ms.
[2026-05-25 11:09:13] [INFO ] Added : 7 causal constraints over 2 iterations in 238 ms. Result :sat
Minimization took 256 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:09:14] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 11:09:14] [INFO ] [Real]Absence check using state equation in 136 ms returned sat
[2026-05-25 11:09:14] [INFO ] [Real]Added 86 Read/Feed constraints in 35 ms returned sat
[2026-05-25 11:09:14] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:09:14] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 11:09:14] [INFO ] [Nat]Absence check using state equation in 143 ms returned sat
[2026-05-25 11:09:14] [INFO ] [Nat]Added 86 Read/Feed constraints in 35 ms returned sat
[2026-05-25 11:09:14] [INFO ] Computed and/alt/rep : 345/2340/345 causal constraints (skipped 386 transitions) in 121 ms.
[2026-05-25 11:09:15] [INFO ] Added : 4 causal constraints over 1 iterations in 231 ms. Result :sat
Minimization took 261 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:09:15] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 11:09:15] [INFO ] [Real]Absence check using state equation in 142 ms returned sat
[2026-05-25 11:09:15] [INFO ] [Real]Added 86 Read/Feed constraints in 23 ms returned sat
[2026-05-25 11:09:15] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:09:15] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 11:09:15] [INFO ] [Nat]Absence check using state equation in 141 ms returned sat
[2026-05-25 11:09:15] [INFO ] [Nat]Added 86 Read/Feed constraints in 29 ms returned sat
[2026-05-25 11:09:15] [INFO ] Computed and/alt/rep : 345/2340/345 causal constraints (skipped 386 transitions) in 97 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 11:09:16] [INFO ] Deduced a trap composed of 74 places in 243 ms of which 36 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 11:09:16] [INFO ] Deduced a trap composed of 132 places in 230 ms of which 38 ms to minimize.
[2026-05-25 11:09:16] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 570 ms
[2026-05-25 11:09:16] [INFO ] Added : 5 causal constraints over 2 iterations in 857 ms. Result :sat
Minimization took 262 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[85, 140, 129, 143, 324] Max Struct:[+inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[85, 140, 129, 143, 324] Max Struct:[+inf, +inf, +inf, +inf, +inf]
Support contains 5 out of 448 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 448/448 places, 1280/1280 transitions.
Applied a total of 0 rules in 47 ms. Remains 448 /448 variables (removed 0) and now considering 1280/1280 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 47 ms. Remains : 448/448 places, 1280/1280 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 448/448 places, 1280/1280 transitions.
Applied a total of 0 rules in 48 ms. Remains 448 /448 variables (removed 0) and now considering 1280/1280 (removed 0) transitions.
[2026-05-25 11:09:19] [INFO ] Flow matrix only has 733 transitions (discarded 547 similar events)
[2026-05-25 11:09:19] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 11:09:19] [INFO ] Implicit Places using invariants in 323 ms returned []
[2026-05-25 11:09:19] [INFO ] Flow matrix only has 733 transitions (discarded 547 similar events)
[2026-05-25 11:09:19] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 11:09:19] [INFO ] State equation strengthened by 86 read => feed constraints.
[2026-05-25 11:09:21] [INFO ] Implicit Places using invariants and state equation in 2130 ms returned []
Implicit Place search using SMT with State Equation took 2465 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-25 11:09:21] [INFO ] Redundant transitions in 34 ms returned []
Running 1278 sub problems to find dead transitions.
[2026-05-25 11:09:21] [INFO ] Flow matrix only has 733 transitions (discarded 547 similar events)
[2026-05-25 11:09:21] [INFO ] Invariant cache hit.
[2026-05-25 11:09:21] [INFO ] State equation strengthened by 86 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/448 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1278 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 11:09:37] [INFO ] Deduced a trap composed of 131 places in 108 ms of which 4 ms to minimize.
At refinement iteration 1 (INCLUDED_ONLY) 0/448 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1278 unsolved
Error getting values : (error "ParserException while parsing response: ((s0 1.0)
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(s75 timeout
0.0 org.smtlib.IParser$ParserException: Unbalanced parentheses at end of input")
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 448/1181 variables, and 4 constraints, problems are : Problem set: 0 solved, 1278 unsolved in 30026 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/448 constraints, ReadFeed: 0/86 constraints, PredecessorRefiner: 1278/1278 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1278 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/448 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1278 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/448 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1278 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/448 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1278 unsolved
At refinement iteration 3 (OVERLAPS) 733/1181 variables, 448/452 constraints. Problems are: Problem set: 0 solved, 1278 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1181 variables, 86/538 constraints. Problems are: Problem set: 0 solved, 1278 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1181/1181 variables, and 1816 constraints, problems are : Problem set: 0 solved, 1278 unsolved in 30042 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 448/448 constraints, ReadFeed: 86/86 constraints, PredecessorRefiner: 1278/1278 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 61636ms problems are : Problem set: 0 solved, 1278 unsolved
Search for dead transitions found 0 dead transitions in 61639ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 64194 ms. Remains : 448/448 places, 1280/1280 transitions.
[2026-05-25 11:10:23] [INFO ] Flow matrix only has 733 transitions (discarded 547 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {244=1, 360=1, 689=1, 732=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {252=1, 368=1, 697=1, 728=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 5) seen :[1, 2, 2, 3, 2]
Current structural bounds on expressions (after cover walk) : Max Seen:[85, 140, 129, 143, 324] Max Struct:[+inf, +inf, +inf, +inf, +inf]
[2026-05-25 11:10:23] [INFO ] Flow matrix only has 733 transitions (discarded 547 similar events)
[2026-05-25 11:10:23] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[85, 140, 129, 143, 324] Max Struct:[+inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 2800 ms. (357 steps per ms)
BEST_FIRST walk for 5000005 steps (10 resets) in 6823 ms. (732 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[86, 302, 186, 263, 324] Max Struct:[+inf, +inf, +inf, +inf, +inf]
[2026-05-25 11:10:33] [INFO ] Flow matrix only has 733 transitions (discarded 547 similar events)
[2026-05-25 11:10:33] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:10:33] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 11:10:33] [INFO ] [Real]Absence check using state equation in 139 ms returned sat
[2026-05-25 11:10:33] [INFO ] State equation strengthened by 86 read => feed constraints.
[2026-05-25 11:10:33] [INFO ] [Real]Added 86 Read/Feed constraints in 36 ms returned sat
[2026-05-25 11:10:33] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:10:33] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 11:10:33] [INFO ] [Nat]Absence check using state equation in 134 ms returned sat
[2026-05-25 11:10:34] [INFO ] [Nat]Added 86 Read/Feed constraints in 40 ms returned sat
[2026-05-25 11:10:34] [INFO ] Computed and/alt/rep : 345/2340/345 causal constraints (skipped 386 transitions) in 78 ms.
[2026-05-25 11:10:34] [INFO ] Added : 26 causal constraints over 7 iterations in 386 ms. Result :sat
Minimization took 327 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:10:34] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 11:10:34] [INFO ] [Real]Absence check using state equation in 142 ms returned sat
[2026-05-25 11:10:35] [INFO ] [Real]Added 86 Read/Feed constraints in 37 ms returned sat
[2026-05-25 11:10:35] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:10:35] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 11:10:35] [INFO ] [Nat]Absence check using state equation in 149 ms returned sat
[2026-05-25 11:10:35] [INFO ] [Nat]Added 86 Read/Feed constraints in 25 ms returned sat
[2026-05-25 11:10:35] [INFO ] Computed and/alt/rep : 345/2340/345 causal constraints (skipped 386 transitions) in 74 ms.
[2026-05-25 11:10:35] [INFO ] Added : 8 causal constraints over 2 iterations in 249 ms. Result :sat
Minimization took 270 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:10:35] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 11:10:36] [INFO ] [Real]Absence check using state equation in 134 ms returned sat
[2026-05-25 11:10:36] [INFO ] [Real]Added 86 Read/Feed constraints in 25 ms returned sat
[2026-05-25 11:10:36] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:10:36] [INFO ] [Nat]Absence check using 3 positive place invariants in 6 ms returned sat
[2026-05-25 11:10:36] [INFO ] [Nat]Absence check using state equation in 141 ms returned sat
[2026-05-25 11:10:36] [INFO ] [Nat]Added 86 Read/Feed constraints in 32 ms returned sat
[2026-05-25 11:10:36] [INFO ] Computed and/alt/rep : 345/2340/345 causal constraints (skipped 386 transitions) in 72 ms.
[2026-05-25 11:10:36] [INFO ] Added : 7 causal constraints over 2 iterations in 215 ms. Result :sat
Minimization took 242 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:10:36] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 11:10:37] [INFO ] [Real]Absence check using state equation in 138 ms returned sat
[2026-05-25 11:10:37] [INFO ] [Real]Added 86 Read/Feed constraints in 34 ms returned sat
[2026-05-25 11:10:37] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:10:37] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 11:10:37] [INFO ] [Nat]Absence check using state equation in 137 ms returned sat
[2026-05-25 11:10:37] [INFO ] [Nat]Added 86 Read/Feed constraints in 34 ms returned sat
[2026-05-25 11:10:37] [INFO ] Computed and/alt/rep : 345/2340/345 causal constraints (skipped 386 transitions) in 80 ms.
[2026-05-25 11:10:37] [INFO ] Added : 4 causal constraints over 1 iterations in 191 ms. Result :sat
Minimization took 248 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:10:37] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 11:10:38] [INFO ] [Real]Absence check using state equation in 140 ms returned sat
[2026-05-25 11:10:38] [INFO ] [Real]Added 86 Read/Feed constraints in 24 ms returned sat
[2026-05-25 11:10:38] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:10:38] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 11:10:38] [INFO ] [Nat]Absence check using state equation in 136 ms returned sat
[2026-05-25 11:10:38] [INFO ] [Nat]Added 86 Read/Feed constraints in 26 ms returned sat
[2026-05-25 11:10:38] [INFO ] Computed and/alt/rep : 345/2340/345 causal constraints (skipped 386 transitions) in 76 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 11:10:38] [INFO ] Deduced a trap composed of 74 places in 240 ms of which 35 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 11:10:39] [INFO ] Deduced a trap composed of 132 places in 228 ms of which 38 ms to minimize.
[2026-05-25 11:10:39] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 581 ms
[2026-05-25 11:10:39] [INFO ] Added : 5 causal constraints over 2 iterations in 853 ms. Result :sat
Minimization took 260 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[86, 302, 186, 263, 324] Max Struct:[+inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[86, 302, 186, 263, 324] Max Struct:[+inf, +inf, +inf, +inf, +inf]
Support contains 5 out of 448 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 448/448 places, 1280/1280 transitions.
Applied a total of 0 rules in 50 ms. Remains 448 /448 variables (removed 0) and now considering 1280/1280 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 50 ms. Remains : 448/448 places, 1280/1280 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 448/448 places, 1280/1280 transitions.
Applied a total of 0 rules in 48 ms. Remains 448 /448 variables (removed 0) and now considering 1280/1280 (removed 0) transitions.
[2026-05-25 11:10:43] [INFO ] Flow matrix only has 733 transitions (discarded 547 similar events)
[2026-05-25 11:10:43] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 11:10:43] [INFO ] Implicit Places using invariants in 302 ms returned []
[2026-05-25 11:10:43] [INFO ] Flow matrix only has 733 transitions (discarded 547 similar events)
[2026-05-25 11:10:43] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 11:10:43] [INFO ] State equation strengthened by 86 read => feed constraints.
[2026-05-25 11:10:45] [INFO ] Implicit Places using invariants and state equation in 2136 ms returned []
Implicit Place search using SMT with State Equation took 2439 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-25 11:10:45] [INFO ] Redundant transitions in 31 ms returned []
Running 1278 sub problems to find dead transitions.
[2026-05-25 11:10:45] [INFO ] Flow matrix only has 733 transitions (discarded 547 similar events)
[2026-05-25 11:10:45] [INFO ] Invariant cache hit.
[2026-05-25 11:10:45] [INFO ] State equation strengthened by 86 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/448 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1278 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 11:11:01] [INFO ] Deduced a trap composed of 131 places in 102 ms of which 4 ms to minimize.
At refinement iteration 1 (INCLUDED_ONLY) 0/448 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1278 unsolved
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(s343 timeout
0.0) org.smtlib.IParser$ParserException: Unbalanced parentheses at end of input")
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 448/1181 variables, and 4 constraints, problems are : Problem set: 0 solved, 1278 unsolved in 30025 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/448 constraints, ReadFeed: 0/86 constraints, PredecessorRefiner: 1278/1278 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1278 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/448 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1278 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/448 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1278 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/448 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1278 unsolved
At refinement iteration 3 (OVERLAPS) 733/1181 variables, 448/452 constraints. Problems are: Problem set: 0 solved, 1278 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1181 variables, 86/538 constraints. Problems are: Problem set: 0 solved, 1278 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/1181 variables, 1278/1816 constraints. Problems are: Problem set: 0 solved, 1278 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1181/1181 variables, and 1816 constraints, problems are : Problem set: 0 solved, 1278 unsolved in 30045 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 448/448 constraints, ReadFeed: 86/86 constraints, PredecessorRefiner: 1278/1278 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 61654ms problems are : Problem set: 0 solved, 1278 unsolved
Search for dead transitions found 0 dead transitions in 61657ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 64184 ms. Remains : 448/448 places, 1280/1280 transitions.
[2026-05-25 11:11:47] [INFO ] Flow matrix only has 733 transitions (discarded 547 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {244=1, 360=1, 689=1, 732=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {252=1, 368=1, 697=1, 728=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 5) seen :[0, 2, 3, 2, 1]
Current structural bounds on expressions (after cover walk) : Max Seen:[86, 302, 186, 263, 324] Max Struct:[+inf, +inf, +inf, +inf, +inf]
[2026-05-25 11:11:47] [INFO ] Flow matrix only has 733 transitions (discarded 547 similar events)
[2026-05-25 11:11:47] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[86, 302, 186, 263, 324] Max Struct:[+inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 2705 ms. (369 steps per ms)
BEST_FIRST walk for 5000005 steps (10 resets) in 7258 ms. (688 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[86, 302, 186, 263, 324] Max Struct:[+inf, +inf, +inf, +inf, +inf]
[2026-05-25 11:11:57] [INFO ] Flow matrix only has 733 transitions (discarded 547 similar events)
[2026-05-25 11:11:57] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:11:57] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 11:11:57] [INFO ] [Real]Absence check using state equation in 148 ms returned sat
[2026-05-25 11:11:57] [INFO ] State equation strengthened by 86 read => feed constraints.
[2026-05-25 11:11:57] [INFO ] [Real]Added 86 Read/Feed constraints in 37 ms returned sat
[2026-05-25 11:11:57] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:11:58] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 11:11:58] [INFO ] [Nat]Absence check using state equation in 143 ms returned sat
[2026-05-25 11:11:58] [INFO ] [Nat]Added 86 Read/Feed constraints in 42 ms returned sat
[2026-05-25 11:11:58] [INFO ] Computed and/alt/rep : 345/2340/345 causal constraints (skipped 386 transitions) in 77 ms.
[2026-05-25 11:11:58] [INFO ] Added : 26 causal constraints over 7 iterations in 387 ms. Result :sat
Minimization took 333 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:11:59] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 11:11:59] [INFO ] [Real]Absence check using state equation in 138 ms returned sat
[2026-05-25 11:11:59] [INFO ] [Real]Added 86 Read/Feed constraints in 38 ms returned sat
[2026-05-25 11:11:59] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:11:59] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 11:11:59] [INFO ] [Nat]Absence check using state equation in 141 ms returned sat
[2026-05-25 11:11:59] [INFO ] [Nat]Added 86 Read/Feed constraints in 26 ms returned sat
[2026-05-25 11:11:59] [INFO ] Computed and/alt/rep : 345/2340/345 causal constraints (skipped 386 transitions) in 79 ms.
[2026-05-25 11:11:59] [INFO ] Added : 8 causal constraints over 2 iterations in 252 ms. Result :sat
Minimization took 283 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:12:00] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 11:12:00] [INFO ] [Real]Absence check using state equation in 157 ms returned sat
[2026-05-25 11:12:00] [INFO ] [Real]Added 86 Read/Feed constraints in 25 ms returned sat
[2026-05-25 11:12:00] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:12:00] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 11:12:00] [INFO ] [Nat]Absence check using state equation in 137 ms returned sat
[2026-05-25 11:12:00] [INFO ] [Nat]Added 86 Read/Feed constraints in 34 ms returned sat
[2026-05-25 11:12:00] [INFO ] Computed and/alt/rep : 345/2340/345 causal constraints (skipped 386 transitions) in 78 ms.
[2026-05-25 11:12:00] [INFO ] Added : 7 causal constraints over 2 iterations in 239 ms. Result :sat
Minimization took 267 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:12:01] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 11:12:01] [INFO ] [Real]Absence check using state equation in 148 ms returned sat
[2026-05-25 11:12:01] [INFO ] [Real]Added 86 Read/Feed constraints in 37 ms returned sat
[2026-05-25 11:12:01] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:12:01] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 11:12:01] [INFO ] [Nat]Absence check using state equation in 145 ms returned sat
[2026-05-25 11:12:01] [INFO ] [Nat]Added 86 Read/Feed constraints in 38 ms returned sat
[2026-05-25 11:12:01] [INFO ] Computed and/alt/rep : 345/2340/345 causal constraints (skipped 386 transitions) in 78 ms.
[2026-05-25 11:12:01] [INFO ] Added : 4 causal constraints over 1 iterations in 197 ms. Result :sat
Minimization took 266 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:12:02] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 11:12:02] [INFO ] [Real]Absence check using state equation in 142 ms returned sat
[2026-05-25 11:12:02] [INFO ] [Real]Added 86 Read/Feed constraints in 26 ms returned sat
[2026-05-25 11:12:02] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:12:02] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 11:12:02] [INFO ] [Nat]Absence check using state equation in 142 ms returned sat
[2026-05-25 11:12:02] [INFO ] [Nat]Added 86 Read/Feed constraints in 29 ms returned sat
[2026-05-25 11:12:02] [INFO ] Computed and/alt/rep : 345/2340/345 causal constraints (skipped 386 transitions) in 80 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 11:12:03] [INFO ] Deduced a trap composed of 74 places in 239 ms of which 35 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 11:12:03] [INFO ] Deduced a trap composed of 132 places in 226 ms of which 38 ms to minimize.
[2026-05-25 11:12:03] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 576 ms
[2026-05-25 11:12:03] [INFO ] Added : 5 causal constraints over 2 iterations in 870 ms. Result :sat
Minimization took 260 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[86, 302, 186, 263, 324] Max Struct:[+inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[86, 302, 186, 263, 324] Max Struct:[+inf, +inf, +inf, +inf, +inf]
Support contains 5 out of 448 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 448/448 places, 1280/1280 transitions.
Applied a total of 0 rules in 48 ms. Remains 448 /448 variables (removed 0) and now considering 1280/1280 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 48 ms. Remains : 448/448 places, 1280/1280 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 448/448 places, 1280/1280 transitions.
Applied a total of 0 rules in 48 ms. Remains 448 /448 variables (removed 0) and now considering 1280/1280 (removed 0) transitions.
[2026-05-25 11:12:07] [INFO ] Flow matrix only has 733 transitions (discarded 547 similar events)
[2026-05-25 11:12:07] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 11:12:07] [INFO ] Implicit Places using invariants in 319 ms returned []
[2026-05-25 11:12:07] [INFO ] Flow matrix only has 733 transitions (discarded 547 similar events)
[2026-05-25 11:12:07] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 11:12:08] [INFO ] State equation strengthened by 86 read => feed constraints.
[2026-05-25 11:12:10] [INFO ] Implicit Places using invariants and state equation in 2152 ms returned []
Implicit Place search using SMT with State Equation took 2472 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-25 11:12:10] [INFO ] Redundant transitions in 20 ms returned []
Running 1278 sub problems to find dead transitions.
[2026-05-25 11:12:10] [INFO ] Flow matrix only has 733 transitions (discarded 547 similar events)
[2026-05-25 11:12:10] [INFO ] Invariant cache hit.
[2026-05-25 11:12:10] [INFO ] State equation strengthened by 86 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/448 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1278 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 11:12:26] [INFO ] Deduced a trap composed of 131 places in 97 ms of which 4 ms to minimize.
At refinement iteration 1 (INCLUDED_ONLY) 0/448 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1278 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 448/1181 variables, and 4 constraints, problems are : Problem set: 0 solved, 1278 unsolved in 30022 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/448 constraints, ReadFeed: 0/86 constraints, PredecessorRefiner: 1278/1278 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1278 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/448 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1278 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/448 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1278 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/448 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1278 unsolved
At refinement iteration 3 (OVERLAPS) 733/1181 variables, 448/452 constraints. Problems are: Problem set: 0 solved, 1278 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1181 variables, 86/538 constraints. Problems are: Problem set: 0 solved, 1278 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1181/1181 variables, and 1816 constraints, problems are : Problem set: 0 solved, 1278 unsolved in 30031 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 448/448 constraints, ReadFeed: 86/86 constraints, PredecessorRefiner: 1278/1278 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 61852ms problems are : Problem set: 0 solved, 1278 unsolved
Search for dead transitions found 0 dead transitions in 61854ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 64403 ms. Remains : 448/448 places, 1280/1280 transitions.
[2026-05-25 11:13:11] [INFO ] Flow matrix only has 733 transitions (discarded 547 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {244=1, 360=1, 689=1, 732=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {252=1, 368=1, 697=1, 728=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 89 ms. (steps per millisecond=112 ) properties (out of 5) seen :[2, 1, 1, 2, 2]
Current structural bounds on expressions (after cover walk) : Max Seen:[86, 302, 186, 263, 324] Max Struct:[+inf, +inf, +inf, +inf, +inf]
RANDOM walk for 40002 steps (8 resets) in 1021 ms. (39 steps per ms) remains 5/5 properties
BEST_FIRST walk for 40004 steps (8 resets) in 151 ms. (263 steps per ms) remains 5/5 properties
BEST_FIRST walk for 40004 steps (8 resets) in 134 ms. (296 steps per ms) remains 5/5 properties
BEST_FIRST walk for 40004 steps (8 resets) in 106 ms. (373 steps per ms) remains 5/5 properties
[2026-05-25 11:13:12] [INFO ] Flatten gal took : 239 ms
BEST_FIRST walk for 40004 steps (8 resets) in 110 ms. (360 steps per ms) remains 5/5 properties
BEST_FIRST walk for 40004 steps (8 resets) in 100 ms. (396 steps per ms) remains 5/5 properties
[2026-05-25 11:13:12] [INFO ] Flatten gal took : 103 ms
[2026-05-25 11:13:12] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality4136446040637014928.gal : 44 ms
[2026-05-25 11:13:12] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality11982783129410487410.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/ReachabilityCardinality4136446040637014928.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality11982783129410487410.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/ReachabilityCardinality11982783129410487410.prop.
SDD proceeding with computation,5 properties remain. new max is 4
SDD size :1 after 31
SDD proceeding with computation,5 properties remain. new max is 8
SDD size :31 after 1989
SDD proceeding with computation,5 properties remain. new max is 16
SDD size :1989 after 1.23185e+06
Interrupted probabilistic random walk after 231673 steps, run timeout after 3001 ms. (steps per millisecond=77 ) properties seen :0 out of 5
Probabilistic random walk after 231673 steps, saw 142075 distinct states, run finished after 3005 ms. (steps per millisecond=77 ) properties seen :0
[2026-05-25 11:13:15] [INFO ] Flow matrix only has 733 transitions (discarded 547 similar events)
[2026-05-25 11:13:15] [INFO ] Invariant cache hit.
[2026-05-25 11:13:15] [INFO ] State equation strengthened by 86 read => feed constraints.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/5 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 1 (OVERLAPS) 10/15 variables, 5/5 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/15 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 3 (OVERLAPS) 27/42 variables, 9/14 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/42 variables, 0/14 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 5 (OVERLAPS) 382/424 variables, 16/30 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/424 variables, 1/31 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/424 variables, 1/32 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/424 variables, 0/32 constraints. Problems are: Problem set: 0 solved, 5 unsolved
All remaining problems are real, not stopping.
At refinement iteration 9 (OVERLAPS) 11/435 variables, 1/33 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/435 variables, 1/34 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/435 variables, 0/34 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 12 (OVERLAPS) 619/1054 variables, 350/384 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/1054 variables, 85/469 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/1054 variables, 0/469 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 15 (OVERLAPS) 62/1116 variables, 1/470 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/1116 variables, 0/470 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 17 (OVERLAPS) 65/1181 variables, 67/537 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/1181 variables, 0/537 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 19 (OVERLAPS) 0/1181 variables, 0/537 constraints. Problems are: Problem set: 0 solved, 5 unsolved
No progress, stopping.
After SMT solving in domain Real declared 1181/1181 variables, and 537 constraints, problems are : Problem set: 0 solved, 5 unsolved in 664 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 448/448 constraints, ReadFeed: 86/86 constraints, PredecessorRefiner: 5/5 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 5 unsolved
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/5 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 1 (OVERLAPS) 10/15 variables, 5/5 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/15 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 3 (OVERLAPS) 27/42 variables, 9/14 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/42 variables, 0/14 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 5 (OVERLAPS) 382/424 variables, 16/30 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/424 variables, 1/31 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/424 variables, 1/32 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/424 variables, 5/37 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/424 variables, 0/37 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 10 (OVERLAPS) 11/435 variables, 1/38 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/435 variables, 1/39 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/435 variables, 0/39 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 13 (OVERLAPS) 619/1054 variables, 350/389 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/1054 variables, 85/474 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/1054 variables, 0/474 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 16 (OVERLAPS) 62/1116 variables, 1/475 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/1116 variables, 0/475 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 18 (OVERLAPS) 65/1181 variables, 67/542 constraints. Problems are: Problem set: 0 solved, 5 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 11:13:17] [INFO ] Deduced a trap along path composed of 3 places in 25 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 11:13:17] [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
[2026-05-25 11:13:17] [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
[2026-05-25 11:13:17] [INFO ] Deduced a trap along path composed of 3 places in 15 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 11:13:17] [INFO ] Deduced a trap along path composed of 3 places in 14 ms of which 0 ms to minimize.
At refinement iteration 19 (INCLUDED_ONLY) 0/1181 variables, 5/547 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/1181 variables, 0/547 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 21 (OVERLAPS) 0/1181 variables, 0/547 constraints. Problems are: Problem set: 0 solved, 5 unsolved
No progress, stopping.
After SMT solving in domain Int declared 1181/1181 variables, and 547 constraints, problems are : Problem set: 0 solved, 5 unsolved in 1638 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 448/448 constraints, ReadFeed: 86/86 constraints, PredecessorRefiner: 5/5 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 5/5 constraints]
After SMT, in 2315ms problems are : Problem set: 0 solved, 5 unsolved
Fused 5 Parikh solutions to 2 different solutions.
SDD proceeding with computation,5 properties remain. new max is 32
SDD size :1.23185e+06 after 3.63836e+10
SDD proceeding with computation,5 properties remain. new max is 64
SDD size :3.63836e+10 after 5.39482e+17
Parikh walk visited 0 properties in 39399 ms.
Support contains 5 out of 448 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 448/448 places, 1280/1280 transitions.
Applied a total of 0 rules in 55 ms. Remains 448 /448 variables (removed 0) and now considering 1280/1280 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 56 ms. Remains : 448/448 places, 1280/1280 transitions.
RANDOM walk for 40002 steps (8 resets) in 237 ms. (168 steps per ms) remains 5/5 properties
BEST_FIRST walk for 40003 steps (8 resets) in 97 ms. (408 steps per ms) remains 5/5 properties
BEST_FIRST walk for 40003 steps (8 resets) in 102 ms. (388 steps per ms) remains 5/5 properties
BEST_FIRST walk for 40004 steps (8 resets) in 105 ms. (377 steps per ms) remains 5/5 properties
BEST_FIRST walk for 40003 steps (8 resets) in 103 ms. (384 steps per ms) remains 5/5 properties
BEST_FIRST walk for 40003 steps (8 resets) in 101 ms. (392 steps per ms) remains 5/5 properties
Interrupted probabilistic random walk after 238096 steps, run timeout after 3001 ms. (steps per millisecond=79 ) properties seen :0 out of 5
Probabilistic random walk after 238096 steps, saw 146012 distinct states, run finished after 3001 ms. (steps per millisecond=79 ) properties seen :0
[2026-05-25 11:14:00] [INFO ] Flow matrix only has 733 transitions (discarded 547 similar events)
[2026-05-25 11:14:00] [INFO ] Invariant cache hit.
[2026-05-25 11:14:00] [INFO ] State equation strengthened by 86 read => feed constraints.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/5 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 1 (OVERLAPS) 10/15 variables, 5/5 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/15 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 3 (OVERLAPS) 27/42 variables, 9/14 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/42 variables, 0/14 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 5 (OVERLAPS) 382/424 variables, 16/30 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/424 variables, 1/31 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/424 variables, 1/32 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/424 variables, 0/32 constraints. Problems are: Problem set: 0 solved, 5 unsolved
All remaining problems are real, not stopping.
At refinement iteration 9 (OVERLAPS) 11/435 variables, 1/33 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/435 variables, 1/34 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/435 variables, 0/34 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 12 (OVERLAPS) 619/1054 variables, 350/384 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/1054 variables, 85/469 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/1054 variables, 0/469 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 15 (OVERLAPS) 62/1116 variables, 1/470 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/1116 variables, 0/470 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 17 (OVERLAPS) 65/1181 variables, 67/537 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/1181 variables, 0/537 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 19 (OVERLAPS) 0/1181 variables, 0/537 constraints. Problems are: Problem set: 0 solved, 5 unsolved
No progress, stopping.
After SMT solving in domain Real declared 1181/1181 variables, and 537 constraints, problems are : Problem set: 0 solved, 5 unsolved in 671 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 448/448 constraints, ReadFeed: 86/86 constraints, PredecessorRefiner: 5/5 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 5 unsolved
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/5 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 1 (OVERLAPS) 10/15 variables, 5/5 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/15 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 3 (OVERLAPS) 27/42 variables, 9/14 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/42 variables, 0/14 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 5 (OVERLAPS) 382/424 variables, 16/30 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/424 variables, 1/31 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/424 variables, 1/32 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/424 variables, 5/37 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/424 variables, 0/37 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 10 (OVERLAPS) 11/435 variables, 1/38 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/435 variables, 1/39 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/435 variables, 0/39 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 13 (OVERLAPS) 619/1054 variables, 350/389 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/1054 variables, 85/474 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/1054 variables, 0/474 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 16 (OVERLAPS) 62/1116 variables, 1/475 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/1116 variables, 0/475 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 18 (OVERLAPS) 65/1181 variables, 67/542 constraints. Problems are: Problem set: 0 solved, 5 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 11:14:02] [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
[2026-05-25 11:14:02] [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
[2026-05-25 11:14:02] [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
[2026-05-25 11:14:02] [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
[2026-05-25 11:14:02] [INFO ] Deduced a trap along path composed of 3 places in 15 ms of which 0 ms to minimize.
At refinement iteration 19 (INCLUDED_ONLY) 0/1181 variables, 5/547 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/1181 variables, 0/547 constraints. Problems are: Problem set: 0 solved, 5 unsolved
Detected timeout of ITS tools.
At refinement iteration 21 (OVERLAPS) 0/1181 variables, 0/547 constraints. Problems are: Problem set: 0 solved, 5 unsolved
No progress, stopping.
[2026-05-25 11:14:03] [INFO ] Flatten gal took : 62 ms
[2026-05-25 11:14:03] [INFO ] Applying decomposition
After SMT solving in domain Int declared 1181/1181 variables, and 547 constraints, problems are : Problem set: 0 solved, 5 unsolved in 1654 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 448/448 constraints, ReadFeed: 86/86 constraints, PredecessorRefiner: 5/5 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 5/5 constraints]
[2026-05-25 11:14:03] [INFO ] Flatten gal took : 52 ms
After SMT, in 2340ms problems are : Problem set: 0 solved, 5 unsolved
Fused 5 Parikh solutions to 2 different solutions.
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/graph5513402762459247711.txt' '-o' '/tmp/graph5513402762459247711.bin' '-w' '/tmp/graph5513402762459247711.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/louvain-linux64' '/tmp/graph5513402762459247711.bin' '-l' '-1' '-v' '-w' '/tmp/graph5513402762459247711.weights' '-q' '0' '-e' '0.001'
[2026-05-25 11:14:03] [INFO ] Decomposing Gal with order
[2026-05-25 11:14:03] [INFO ] Rewriting arrays to variables to allow decomposition.
[2026-05-25 11:14:03] [INFO ] Removed a total of 2185 redundant transitions.
[2026-05-25 11:14:03] [INFO ] Flatten gal took : 273 ms
[2026-05-25 11:14:04] [INFO ] Fuse similar labels procedure discarded/fused a total of 954 labels/synchronizations in 123 ms.
[2026-05-25 11:14:04] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality15298421081295168736.gal : 13 ms
[2026-05-25 11:14:04] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality18273082513769758403.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/ReachabilityCardinality15298421081295168736.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality18273082513769758403.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/ReachabilityCardinality18273082513769758403.prop.
Parikh walk visited 0 properties in 38684 ms.
Support contains 5 out of 448 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 448/448 places, 1280/1280 transitions.
Applied a total of 0 rules in 49 ms. Remains 448 /448 variables (removed 0) and now considering 1280/1280 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 49 ms. Remains : 448/448 places, 1280/1280 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 448/448 places, 1280/1280 transitions.
Applied a total of 0 rules in 48 ms. Remains 448 /448 variables (removed 0) and now considering 1280/1280 (removed 0) transitions.
[2026-05-25 11:14:41] [INFO ] Flow matrix only has 733 transitions (discarded 547 similar events)
[2026-05-25 11:14:41] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 11:14:42] [INFO ] Implicit Places using invariants in 345 ms returned []
[2026-05-25 11:14:42] [INFO ] Flow matrix only has 733 transitions (discarded 547 similar events)
[2026-05-25 11:14:42] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 11:14:42] [INFO ] State equation strengthened by 86 read => feed constraints.
[2026-05-25 11:14:44] [INFO ] Implicit Places using invariants and state equation in 2114 ms returned []
Implicit Place search using SMT with State Equation took 2462 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-25 11:14:44] [INFO ] Redundant transitions in 122 ms returned []
Running 1278 sub problems to find dead transitions.
[2026-05-25 11:14:44] [INFO ] Flow matrix only has 733 transitions (discarded 547 similar events)
[2026-05-25 11:14:44] [INFO ] Invariant cache hit.
[2026-05-25 11:14:44] [INFO ] State equation strengthened by 86 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
Detected timeout of ITS tools.
At refinement iteration 0 (INCLUDED_ONLY) 0/448 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1278 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 11:15:01] [INFO ] Deduced a trap composed of 131 places in 109 ms of which 4 ms to minimize.
At refinement iteration 1 (INCLUDED_ONLY) 0/448 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1278 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 448/1181 variables, and 4 constraints, problems are : Problem set: 0 solved, 1278 unsolved in 30022 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/448 constraints, ReadFeed: 0/86 constraints, PredecessorRefiner: 1278/1278 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1278 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/448 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1278 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/448 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1278 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/448 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1278 unsolved
At refinement iteration 3 (OVERLAPS) 733/1181 variables, 448/452 constraints. Problems are: Problem set: 0 solved, 1278 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1181 variables, 86/538 constraints. Problems are: Problem set: 0 solved, 1278 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/1181 variables, 1278/1816 constraints. Problems are: Problem set: 0 solved, 1278 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1181/1181 variables, and 1816 constraints, problems are : Problem set: 0 solved, 1278 unsolved in 30038 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 448/448 constraints, ReadFeed: 86/86 constraints, PredecessorRefiner: 1278/1278 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 61953ms problems are : Problem set: 0 solved, 1278 unsolved
Search for dead transitions found 0 dead transitions in 61957ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 64610 ms. Remains : 448/448 places, 1280/1280 transitions.
Current structural bounds on expressions (After reachability solving 0 queries.) : Max Seen:[86, 302, 186, 263, 324] Max Struct:[+inf, +inf, +inf, +inf, +inf]
Starting property specific reduction for FunctionPointer-PT-c064-UpperBounds-04
Current structural bounds on expressions (Initially) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (Adding known information on max bounds.) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (Before main loop) : Max Seen:[0] Max Struct:[+inf]
[2026-05-25 11:15:46] [INFO ] Flow matrix only has 733 transitions (discarded 547 similar events)
[2026-05-25 11:15:46] [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 29 ms. (333 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]
[2026-05-25 11:15:46] [INFO ] Flow matrix only has 733 transitions (discarded 547 similar events)
[2026-05-25 11:15:46] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 11:15:46] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 11:15:46] [INFO ] [Real]Absence check using state equation in 154 ms returned sat
[2026-05-25 11:15:46] [INFO ] State equation strengthened by 86 read => feed constraints.
[2026-05-25 11:15:46] [INFO ] [Real]Added 86 Read/Feed constraints in 22 ms returned sat
[2026-05-25 11:15:46] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 11:15:46] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 11:15:47] [INFO ] [Nat]Absence check using state equation in 150 ms returned sat
[2026-05-25 11:15:47] [INFO ] [Nat]Added 86 Read/Feed constraints in 20 ms returned sat
[2026-05-25 11:15:47] [INFO ] Computed and/alt/rep : 345/2340/345 causal constraints (skipped 386 transitions) in 75 ms.
[2026-05-25 11:15:47] [INFO ] Added : 4 causal constraints over 1 iterations in 182 ms. Result :sat
Minimization took 305 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:[0] Max Struct:[+inf]
Support contains 1 out of 448 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 448/448 places, 1280/1280 transitions.
Discarding 4 places :
Symmetric choice reduction at 0 with 4 rule applications. Total rules 4 place count 444 transition count 1272
Iterating global reduction 0 with 4 rules applied. Total rules applied 8 place count 444 transition count 1272
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 0 with 2 rules applied. Total rules applied 10 place count 444 transition count 1270
Discarding 4 places :
Symmetric choice reduction at 1 with 4 rule applications. Total rules 14 place count 440 transition count 1256
Iterating global reduction 1 with 4 rules applied. Total rules applied 18 place count 440 transition count 1256
Discarding 3 places :
Symmetric choice reduction at 1 with 3 rule applications. Total rules 21 place count 437 transition count 1250
Iterating global reduction 1 with 3 rules applied. Total rules applied 24 place count 437 transition count 1250
Discarding 3 places :
Symmetric choice reduction at 1 with 3 rule applications. Total rules 27 place count 434 transition count 1244
Iterating global reduction 1 with 3 rules applied. Total rules applied 30 place count 434 transition count 1244
Discarding 3 places :
Symmetric choice reduction at 1 with 3 rule applications. Total rules 33 place count 431 transition count 1238
Iterating global reduction 1 with 3 rules applied. Total rules applied 36 place count 431 transition count 1238
Discarding 3 places :
Symmetric choice reduction at 1 with 3 rule applications. Total rules 39 place count 428 transition count 1232
Iterating global reduction 1 with 3 rules applied. Total rules applied 42 place count 428 transition count 1232
Discarding 3 places :
Symmetric choice reduction at 1 with 3 rule applications. Total rules 45 place count 425 transition count 1226
Iterating global reduction 1 with 3 rules applied. Total rules applied 48 place count 425 transition count 1226
Discarding 3 places :
Symmetric choice reduction at 1 with 3 rule applications. Total rules 51 place count 422 transition count 1220
Iterating global reduction 1 with 3 rules applied. Total rules applied 54 place count 422 transition count 1220
Applied a total of 54 rules in 130 ms. Remains 422 /448 variables (removed 26) and now considering 1220/1280 (removed 60) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 131 ms. Remains : 422/448 places, 1220/1280 transitions.
[2026-05-25 11:15:47] [INFO ] Flow matrix only has 689 transitions (discarded 531 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {228=1, 320=1, 518=1, 684=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {252=1, 344=1, 670=1, 688=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 85 ms. (steps per millisecond=117 ) properties (out of 1) seen :[1]
Current structural bounds on expressions (after cover walk) : Max Seen:[1] Max Struct:[+inf]
[2026-05-25 11:15:48] [INFO ] Flow matrix only has 689 transitions (discarded 531 similar events)
// Phase 1: matrix 689 rows 422 cols
[2026-05-25 11:15:48] [INFO ] Computed 3 invariants in 9 ms
Current structural bounds on expressions (after invariants) : Max Seen:[1] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 2515 ms. (397 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 1313 ms. (761 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[200] Max Struct:[+inf]
[2026-05-25 11:15:51] [INFO ] Flow matrix only has 689 transitions (discarded 531 similar events)
[2026-05-25 11:15:51] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:15:52] [INFO ] [Real]Absence check using 3 positive place invariants in 6 ms returned sat
[2026-05-25 11:15:52] [INFO ] [Real]Absence check using state equation in 235 ms returned sat
[2026-05-25 11:15:52] [INFO ] State equation strengthened by 75 read => feed constraints.
[2026-05-25 11:15:52] [INFO ] [Real]Added 75 Read/Feed constraints in 25 ms returned sat
[2026-05-25 11:15:52] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:15:52] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 11:15:52] [INFO ] [Nat]Absence check using state equation in 154 ms returned sat
[2026-05-25 11:15:52] [INFO ] [Nat]Added 75 Read/Feed constraints in 28 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 11:15:52] [INFO ] Deduced a trap composed of 70 places in 228 ms of which 32 ms to minimize.
[2026-05-25 11:15:52] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 294 ms
[2026-05-25 11:15:52] [INFO ] Computed and/alt/rep : 332/1248/332 causal constraints (skipped 355 transitions) in 75 ms.
[2026-05-25 11:15:53] [INFO ] Added : 10 causal constraints over 3 iterations in 231 ms. Result :sat
Minimization took 296 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[200] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[200] Max Struct:[+inf]
Support contains 1 out of 422 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 422/422 places, 1220/1220 transitions.
Applied a total of 0 rules in 45 ms. Remains 422 /422 variables (removed 0) and now considering 1220/1220 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 45 ms. Remains : 422/422 places, 1220/1220 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 422/422 places, 1220/1220 transitions.
Applied a total of 0 rules in 45 ms. Remains 422 /422 variables (removed 0) and now considering 1220/1220 (removed 0) transitions.
[2026-05-25 11:15:53] [INFO ] Flow matrix only has 689 transitions (discarded 531 similar events)
[2026-05-25 11:15:53] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 11:15:53] [INFO ] Implicit Places using invariants in 290 ms returned []
[2026-05-25 11:15:53] [INFO ] Flow matrix only has 689 transitions (discarded 531 similar events)
[2026-05-25 11:15:53] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 11:15:54] [INFO ] State equation strengthened by 75 read => feed constraints.
[2026-05-25 11:16:06] [INFO ] Implicit Places using invariants and state equation in 12203 ms returned []
Implicit Place search using SMT with State Equation took 12495 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-25 11:16:06] [INFO ] Redundant transitions in 33 ms returned []
Running 1218 sub problems to find dead transitions.
[2026-05-25 11:16:06] [INFO ] Flow matrix only has 689 transitions (discarded 531 similar events)
[2026-05-25 11:16:06] [INFO ] Invariant cache hit.
[2026-05-25 11:16:06] [INFO ] State equation strengthened by 75 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/422 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1218 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 11:16:21] [INFO ] Deduced a trap composed of 131 places in 112 ms of which 4 ms to minimize.
At refinement iteration 1 (INCLUDED_ONLY) 0/422 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1218 unsolved
Error getting values : (error "ParserException while parsing response: ((s0 timeout
org.smtlib.IParser$ParserException: Unbalanced parentheses at end of input")
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 422/1111 variables, and 4 constraints, problems are : Problem set: 0 solved, 1218 unsolved in 30025 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/422 constraints, ReadFeed: 0/75 constraints, PredecessorRefiner: 1218/1218 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1218 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/422 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1218 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/422 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1218 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/422 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1218 unsolved
At refinement iteration 3 (OVERLAPS) 689/1111 variables, 422/426 constraints. Problems are: Problem set: 0 solved, 1218 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1111 variables, 75/501 constraints. Problems are: Problem set: 0 solved, 1218 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/1111 variables, 1218/1719 constraints. Problems are: Problem set: 0 solved, 1218 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1111/1111 variables, and 1719 constraints, problems are : Problem set: 0 solved, 1218 unsolved in 30037 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 422/422 constraints, ReadFeed: 75/75 constraints, PredecessorRefiner: 1218/1218 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 61669ms problems are : Problem set: 0 solved, 1218 unsolved
Search for dead transitions found 0 dead transitions in 61672ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 74260 ms. Remains : 422/422 places, 1220/1220 transitions.
[2026-05-25 11:17:07] [INFO ] Flow matrix only has 689 transitions (discarded 531 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {228=1, 320=1, 518=1, 684=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {252=1, 344=1, 670=1, 688=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 81 ms. (steps per millisecond=123 ) properties (out of 1) seen :[2]
Current structural bounds on expressions (after cover walk) : Max Seen:[200] Max Struct:[+inf]
[2026-05-25 11:17:08] [INFO ] Flow matrix only has 689 transitions (discarded 531 similar events)
[2026-05-25 11:17:08] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[200] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 2670 ms. (374 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 1334 ms. (749 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[200] Max Struct:[+inf]
[2026-05-25 11:17:12] [INFO ] Flow matrix only has 689 transitions (discarded 531 similar events)
[2026-05-25 11:17:12] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:17:12] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 11:17:12] [INFO ] [Real]Absence check using state equation in 154 ms returned sat
[2026-05-25 11:17:12] [INFO ] State equation strengthened by 75 read => feed constraints.
[2026-05-25 11:17:12] [INFO ] [Real]Added 75 Read/Feed constraints in 25 ms returned sat
[2026-05-25 11:17:12] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:17:12] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 11:17:12] [INFO ] [Nat]Absence check using state equation in 153 ms returned sat
[2026-05-25 11:17:12] [INFO ] [Nat]Added 75 Read/Feed constraints in 27 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 11:17:12] [INFO ] Deduced a trap composed of 70 places in 235 ms of which 32 ms to minimize.
[2026-05-25 11:17:12] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 297 ms
[2026-05-25 11:17:12] [INFO ] Computed and/alt/rep : 332/1248/332 causal constraints (skipped 355 transitions) in 80 ms.
[2026-05-25 11:17:13] [INFO ] Added : 10 causal constraints over 3 iterations in 253 ms. Result :sat
Minimization took 257 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[200] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[200] Max Struct:[+inf]
Support contains 1 out of 422 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 422/422 places, 1220/1220 transitions.
Applied a total of 0 rules in 46 ms. Remains 422 /422 variables (removed 0) and now considering 1220/1220 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 46 ms. Remains : 422/422 places, 1220/1220 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 422/422 places, 1220/1220 transitions.
Applied a total of 0 rules in 48 ms. Remains 422 /422 variables (removed 0) and now considering 1220/1220 (removed 0) transitions.
[2026-05-25 11:17:13] [INFO ] Flow matrix only has 689 transitions (discarded 531 similar events)
[2026-05-25 11:17:13] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 11:17:13] [INFO ] Implicit Places using invariants in 294 ms returned []
[2026-05-25 11:17:13] [INFO ] Flow matrix only has 689 transitions (discarded 531 similar events)
[2026-05-25 11:17:13] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 11:17:14] [INFO ] State equation strengthened by 75 read => feed constraints.
[2026-05-25 11:17:25] [INFO ] Implicit Places using invariants and state equation in 12075 ms returned []
Implicit Place search using SMT with State Equation took 12371 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-25 11:17:25] [INFO ] Redundant transitions in 19 ms returned []
Running 1218 sub problems to find dead transitions.
[2026-05-25 11:17:25] [INFO ] Flow matrix only has 689 transitions (discarded 531 similar events)
[2026-05-25 11:17:25] [INFO ] Invariant cache hit.
[2026-05-25 11:17:25] [INFO ] State equation strengthened by 75 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/422 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1218 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 11:17:40] [INFO ] Deduced a trap composed of 131 places in 99 ms of which 5 ms to minimize.
At refinement iteration 1 (INCLUDED_ONLY) 0/422 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1218 unsolved
Error getting values : (error "ParserException while parsing response: (timeout
org.smtlib.IParser$ParserException: Unbalanced parentheses at end of input")
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 422/1111 variables, and 4 constraints, problems are : Problem set: 0 solved, 1218 unsolved in 30021 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/422 constraints, ReadFeed: 0/75 constraints, PredecessorRefiner: 1218/1218 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1218 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/422 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1218 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/422 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1218 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/422 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1218 unsolved
At refinement iteration 3 (OVERLAPS) 689/1111 variables, 422/426 constraints. Problems are: Problem set: 0 solved, 1218 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1111 variables, 75/501 constraints. Problems are: Problem set: 0 solved, 1218 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/1111 variables, 1218/1719 constraints. Problems are: Problem set: 0 solved, 1218 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1111/1111 variables, and 1719 constraints, problems are : Problem set: 0 solved, 1218 unsolved in 30039 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 422/422 constraints, ReadFeed: 75/75 constraints, PredecessorRefiner: 1218/1218 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 61751ms problems are : Problem set: 0 solved, 1218 unsolved
Search for dead transitions found 0 dead transitions in 61753ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 74205 ms. Remains : 422/422 places, 1220/1220 transitions.
[2026-05-25 11:18:27] [INFO ] Flow matrix only has 689 transitions (discarded 531 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {228=1, 320=1, 518=1, 684=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {252=1, 344=1, 670=1, 688=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 83 ms. (steps per millisecond=120 ) properties (out of 1) seen :[1]
Current structural bounds on expressions (after cover walk) : Max Seen:[200] Max Struct:[+inf]
[2026-05-25 11:18:28] [INFO ] Flatten gal took : 36 ms
RANDOM walk for 40002 steps (8 resets) in 237 ms. (168 steps per ms) remains 1/1 properties
[2026-05-25 11:18:28] [INFO ] Flatten gal took : 65 ms
BEST_FIRST walk for 40004 steps (8 resets) in 91 ms. (434 steps per ms) remains 1/1 properties
[2026-05-25 11:18:28] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality1907200457993804595.gal : 28 ms
[2026-05-25 11:18:28] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality12797357382443336186.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/ReachabilityCardinality1907200457993804595.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality12797357382443336186.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/ReachabilityCardinality12797357382443336186.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 1995
SDD proceeding with computation,1 properties remain. new max is 16
SDD size :1995 after 1.24464e+06
Interrupted probabilistic random walk after 485538 steps, run timeout after 3001 ms. (steps per millisecond=161 ) properties seen :0 out of 1
Probabilistic random walk after 485538 steps, saw 297728 distinct states, run finished after 3001 ms. (steps per millisecond=161 ) properties seen :0
[2026-05-25 11:18:31] [INFO ] Flow matrix only has 689 transitions (discarded 531 similar events)
[2026-05-25 11:18:31] [INFO ] Invariant cache hit.
[2026-05-25 11:18:31] [INFO ] State equation strengthened by 75 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) 352/377 variables, 8/18 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/377 variables, 2/20 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/377 variables, 0/20 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 12 (OVERLAPS) 7/384 variables, 2/22 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/384 variables, 3/25 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/384 variables, 0/25 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 600/984 variables, 335/360 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/984 variables, 73/433 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/984 variables, 0/433 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 62/1046 variables, 1/434 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/1046 variables, 0/434 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (OVERLAPS) 65/1111 variables, 66/500 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/1111 variables, 0/500 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (OVERLAPS) 0/1111 variables, 0/500 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 1111/1111 variables, and 500 constraints, problems are : Problem set: 0 solved, 1 unsolved in 269 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 422/422 constraints, ReadFeed: 75/75 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) 352/377 variables, 8/18 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/377 variables, 2/20 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/377 variables, 1/21 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/377 variables, 0/21 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 7/384 variables, 2/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/384 variables, 3/26 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/384 variables, 0/26 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 600/984 variables, 335/361 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/984 variables, 73/434 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/984 variables, 0/434 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 62/1046 variables, 1/435 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/1046 variables, 0/435 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 65/1111 variables, 66/501 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 11:18:31] [INFO ] Deduced a trap along path composed of 3 places in 22 ms of which 1 ms to minimize.
At refinement iteration 22 (INCLUDED_ONLY) 0/1111 variables, 1/502 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (INCLUDED_ONLY) 0/1111 variables, 0/502 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (OVERLAPS) 0/1111 variables, 0/502 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 1111/1111 variables, and 502 constraints, problems are : Problem set: 0 solved, 1 unsolved in 477 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 422/422 constraints, ReadFeed: 75/75 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 1/1 constraints]
After SMT, in 759ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 546 ms.
Support contains 1 out of 422 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 422/422 places, 1220/1220 transitions.
Applied a total of 0 rules in 44 ms. Remains 422 /422 variables (removed 0) and now considering 1220/1220 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 45 ms. Remains : 422/422 places, 1220/1220 transitions.
RANDOM walk for 40001 steps (8 resets) in 162 ms. (245 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (8 resets) in 39 ms. (1000 steps per ms) remains 1/1 properties
SDD proceeding with computation,1 properties remain. new max is 32
SDD size :1.24464e+06 after 3.74714e+10
Interrupted probabilistic random walk after 524025 steps, run timeout after 3001 ms. (steps per millisecond=174 ) properties seen :0 out of 1
Probabilistic random walk after 524025 steps, saw 321326 distinct states, run finished after 3001 ms. (steps per millisecond=174 ) properties seen :0
[2026-05-25 11:18:35] [INFO ] Flow matrix only has 689 transitions (discarded 531 similar events)
[2026-05-25 11:18:35] [INFO ] Invariant cache hit.
[2026-05-25 11:18:35] [INFO ] State equation strengthened by 75 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) 352/377 variables, 8/18 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/377 variables, 2/20 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/377 variables, 0/20 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 12 (OVERLAPS) 7/384 variables, 2/22 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/384 variables, 3/25 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/384 variables, 0/25 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 600/984 variables, 335/360 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/984 variables, 73/433 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/984 variables, 0/433 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 62/1046 variables, 1/434 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/1046 variables, 0/434 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (OVERLAPS) 65/1111 variables, 66/500 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/1111 variables, 0/500 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (OVERLAPS) 0/1111 variables, 0/500 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 1111/1111 variables, and 500 constraints, problems are : Problem set: 0 solved, 1 unsolved in 265 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 422/422 constraints, ReadFeed: 75/75 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) 352/377 variables, 8/18 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/377 variables, 2/20 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/377 variables, 1/21 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/377 variables, 0/21 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 7/384 variables, 2/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/384 variables, 3/26 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/384 variables, 0/26 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 600/984 variables, 335/361 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/984 variables, 73/434 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/984 variables, 0/434 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 62/1046 variables, 1/435 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/1046 variables, 0/435 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 65/1111 variables, 66/501 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 11:18:36] [INFO ] Deduced a trap along path composed of 3 places in 14 ms of which 0 ms to minimize.
At refinement iteration 22 (INCLUDED_ONLY) 0/1111 variables, 1/502 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (INCLUDED_ONLY) 0/1111 variables, 0/502 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (OVERLAPS) 0/1111 variables, 0/502 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 1111/1111 variables, and 502 constraints, problems are : Problem set: 0 solved, 1 unsolved in 445 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 422/422 constraints, ReadFeed: 75/75 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 1/1 constraints]
After SMT, in 743ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 465 ms.
Support contains 1 out of 422 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 422/422 places, 1220/1220 transitions.
Applied a total of 0 rules in 43 ms. Remains 422 /422 variables (removed 0) and now considering 1220/1220 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 44 ms. Remains : 422/422 places, 1220/1220 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 422/422 places, 1220/1220 transitions.
Applied a total of 0 rules in 42 ms. Remains 422 /422 variables (removed 0) and now considering 1220/1220 (removed 0) transitions.
[2026-05-25 11:18:36] [INFO ] Flow matrix only has 689 transitions (discarded 531 similar events)
[2026-05-25 11:18:36] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 11:18:37] [INFO ] Implicit Places using invariants in 315 ms returned []
[2026-05-25 11:18:37] [INFO ] Flow matrix only has 689 transitions (discarded 531 similar events)
[2026-05-25 11:18:37] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 11:18:37] [INFO ] State equation strengthened by 75 read => feed constraints.
[2026-05-25 11:18:49] [INFO ] Implicit Places using invariants and state equation in 11989 ms returned []
Implicit Place search using SMT with State Equation took 12310 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-25 11:18:49] [INFO ] Redundant transitions in 26 ms returned []
Running 1218 sub problems to find dead transitions.
[2026-05-25 11:18:49] [INFO ] Flow matrix only has 689 transitions (discarded 531 similar events)
[2026-05-25 11:18:49] [INFO ] Invariant cache hit.
[2026-05-25 11:18:49] [INFO ] State equation strengthened by 75 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
SDD proceeding with computation,1 properties remain. new max is 64
SDD size :3.74714e+10 after 5.80652e+17
At refinement iteration 0 (INCLUDED_ONLY) 0/422 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1218 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 11:19:04] [INFO ] Deduced a trap composed of 131 places in 97 ms of which 3 ms to minimize.
At refinement iteration 1 (INCLUDED_ONLY) 0/422 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1218 unsolved
Detected timeout of ITS tools.
[2026-05-25 11:19:18] [INFO ] Flatten gal took : 33 ms
[2026-05-25 11:19:18] [INFO ] Applying decomposition
[2026-05-25 11:19:18] [INFO ] Flatten gal took : 32 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/graph17141713248928492817.txt' '-o' '/tmp/graph17141713248928492817.bin' '-w' '/tmp/graph17141713248928492817.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/louvain-linux64' '/tmp/graph17141713248928492817.bin' '-l' '-1' '-v' '-w' '/tmp/graph17141713248928492817.weights' '-q' '0' '-e' '0.001'
[2026-05-25 11:19:18] [INFO ] Decomposing Gal with order
[2026-05-25 11:19:18] [INFO ] Rewriting arrays to variables to allow decomposition.
[2026-05-25 11:19:18] [INFO ] Removed a total of 2088 redundant transitions.
[2026-05-25 11:19:18] [INFO ] Flatten gal took : 60 ms
[2026-05-25 11:19:18] [INFO ] Fuse similar labels procedure discarded/fused a total of 840 labels/synchronizations in 35 ms.
[2026-05-25 11:19:18] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality7349970165172148986.gal : 6 ms
[2026-05-25 11:19:18] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality2591950531023473246.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/ReachabilityCardinality7349970165172148986.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality2591950531023473246.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/ReachabilityCardinality2591950531023473246.prop.
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 422/1111 variables, and 4 constraints, problems are : Problem set: 0 solved, 1218 unsolved in 30020 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/422 constraints, ReadFeed: 0/75 constraints, PredecessorRefiner: 1218/1218 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1218 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/422 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1218 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/422 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1218 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/422 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1218 unsolved
At refinement iteration 3 (OVERLAPS) 689/1111 variables, 422/426 constraints. Problems are: Problem set: 0 solved, 1218 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1111 variables, 75/501 constraints. Problems are: Problem set: 0 solved, 1218 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/1111 variables, 1218/1719 constraints. Problems are: Problem set: 0 solved, 1218 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1111/1111 variables, and 1719 constraints, problems are : Problem set: 0 solved, 1218 unsolved in 30037 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 422/422 constraints, ReadFeed: 75/75 constraints, PredecessorRefiner: 1218/1218 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 61929ms problems are : Problem set: 0 solved, 1218 unsolved
Search for dead transitions found 0 dead transitions in 61931ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 74323 ms. Remains : 422/422 places, 1220/1220 transitions.
Attempting over-approximation, by ignoring read arcs.
Ensure Unique test removed 531 transitions
Reduce isomorphic transitions removed 531 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 10 transitions
Trivial Post-agglo rules discarded 10 transitions
Performed 10 trivial Post agglomeration. Transition count delta: 10
Iterating post reduction 0 with 541 rules applied. Total rules applied 541 place count 422 transition count 679
Reduce places removed 10 places and 0 transitions.
Iterating post reduction 1 with 10 rules applied. Total rules applied 551 place count 412 transition count 679
Performed 73 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 73 Pre rules applied. Total rules applied 551 place count 412 transition count 606
Deduced a syphon composed of 73 places in 0 ms
Reduce places removed 73 places and 0 transitions.
Iterating global reduction 2 with 146 rules applied. Total rules applied 697 place count 339 transition count 606
Performed 127 Post agglomeration using F-continuation condition.Transition count delta: 127
Deduced a syphon composed of 127 places in 0 ms
Reduce places removed 127 places and 0 transitions.
Iterating global reduction 2 with 254 rules applied. Total rules applied 951 place count 212 transition count 479
Discarding 64 places :
Symmetric choice reduction at 2 with 64 rule applications. Total rules 1015 place count 148 transition count 351
Iterating global reduction 2 with 64 rules applied. Total rules applied 1079 place count 148 transition count 351
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 2 with 1 rules applied. Total rules applied 1080 place count 148 transition count 350
Discarding 63 places :
Symmetric choice reduction at 3 with 63 rule applications. Total rules 1143 place count 85 transition count 224
Iterating global reduction 3 with 63 rules applied. Total rules applied 1206 place count 85 transition count 224
Discarding 63 places :
Symmetric choice reduction at 3 with 63 rule applications. Total rules 1269 place count 22 transition count 98
Iterating global reduction 3 with 63 rules applied. Total rules applied 1332 place count 22 transition count 98
Ensure Unique test removed 63 transitions
Reduce isomorphic transitions removed 63 transitions.
Iterating post reduction 3 with 63 rules applied. Total rules applied 1395 place count 22 transition count 35
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 4 with 1 Pre rules applied. Total rules applied 1395 place count 22 transition count 34
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 1397 place count 21 transition count 34
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 4 with 2 rules applied. Total rules applied 1399 place count 20 transition count 33
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 1401 place count 19 transition count 33
Applied a total of 1401 rules in 104 ms. Remains 19 /422 variables (removed 403) and now considering 33/1220 (removed 1187) transitions.
Running SMT prover for 1 properties.
// Phase 1: matrix 33 rows 19 cols
[2026-05-25 11:19:51] [INFO ] Computed 3 invariants in 0 ms
Starting Z3 with timeout 450.0 s and query timeout 45000.0 ms
[2026-05-25 11:19:51] [INFO ] [Real]Absence check using 3 positive place invariants in 0 ms returned sat
[2026-05-25 11:19:51] [INFO ] After 8ms SMT Verify possible using state equation in real domain returned unsat :0 sat :1
[2026-05-25 11:19:51] [INFO ] State equation strengthened by 2 read => feed constraints.
[2026-05-25 11:19:51] [INFO ] After 2ms SMT Verify possible using 2 Read/Feed constraints in real domain returned unsat :0 sat :0 real:1
[2026-05-25 11:19:51] [INFO ] After 43ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
Starting Z3 with timeout 450.0 s and query timeout 45000.0 ms
[2026-05-25 11:19:51] [INFO ] [Nat]Absence check using 3 positive place invariants in 0 ms returned sat
[2026-05-25 11:19:51] [INFO ] After 7ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
[2026-05-25 11:19:51] [INFO ] After 2ms SMT Verify possible using 2 Read/Feed constraints in natural domain returned unsat :0 sat :1
TRAPS : Iteration 0
[2026-05-25 11:19:51] [INFO ] After 4ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
[2026-05-25 11:19:51] [INFO ] After 30ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
[2026-05-25 11:19:51] [INFO ] Flatten gal took : 1 ms
[2026-05-25 11:19:51] [INFO ] Flatten gal took : 1 ms
[2026-05-25 11:19:51] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality12823482548341308670.gal : 0 ms
[2026-05-25 11:19:51] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality791197500821085357.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/ReachabilityCardinality12823482548341308670.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality791197500821085357.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/ReachabilityCardinality791197500821085357.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.
[2026-05-25 11:20:06] [INFO ] Flatten gal took : 4 ms
[2026-05-25 11:20:06] [INFO ] Applying decomposition
[2026-05-25 11:20:06] [INFO ] Flatten gal took : 3 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/graph6471278808756418324.txt' '-o' '/tmp/graph6471278808756418324.bin' '-w' '/tmp/graph6471278808756418324.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/louvain-linux64' '/tmp/graph6471278808756418324.bin' '-l' '-1' '-v' '-w' '/tmp/graph6471278808756418324.weights' '-q' '0' '-e' '0.001'
[2026-05-25 11:20:06] [INFO ] Decomposing Gal with order
[2026-05-25 11:20:06] [INFO ] Rewriting arrays to variables to allow decomposition.
[2026-05-25 11:20:06] [INFO ] Removed a total of 36 redundant transitions.
[2026-05-25 11:20:06] [INFO ] Flatten gal took : 2 ms
[2026-05-25 11:20:06] [INFO ] Fuse similar labels procedure discarded/fused a total of 2 labels/synchronizations in 0 ms.
[2026-05-25 11:20:06] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality6872594366176187109.gal : 1 ms
[2026-05-25 11:20:06] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality6423903501623629242.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/ReachabilityCardinality6872594366176187109.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality6423903501623629242.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/ReachabilityCardinality6423903501623629242.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.
Detected timeout of ITS tools.
Over-approximation ignoring read arcs solved 0 properties in 30274 ms.
Current structural bounds on expressions (After reachability solving 0 queries.) : Max Seen:[200] Max Struct:[+inf]
Ending property specific reduction for FunctionPointer-PT-c064-UpperBounds-04 in 274875 ms.
Starting property specific reduction for FunctionPointer-PT-c064-UpperBounds-06
Current structural bounds on expressions (Initially) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (Adding known information on max bounds.) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (Before main loop) : Max Seen:[0] Max Struct:[+inf]
[2026-05-25 11:20:21] [INFO ] Flow matrix only has 733 transitions (discarded 547 similar events)
// Phase 1: matrix 733 rows 448 cols
[2026-05-25 11:20:21] [INFO ] Computed 3 invariants in 10 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[+inf]
RANDOM walk for 10000 steps (2 resets) in 28 ms. (344 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:[0] Max Struct:[+inf]
[2026-05-25 11:20:21] [INFO ] Flow matrix only has 733 transitions (discarded 547 similar events)
[2026-05-25 11:20:21] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 11:20:21] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 11:20:21] [INFO ] [Real]Absence check using state equation in 149 ms returned sat
[2026-05-25 11:20:21] [INFO ] State equation strengthened by 86 read => feed constraints.
[2026-05-25 11:20:21] [INFO ] [Real]Added 86 Read/Feed constraints in 22 ms returned sat
[2026-05-25 11:20:21] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 11:20:21] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 11:20:21] [INFO ] [Nat]Absence check using state equation in 149 ms returned sat
[2026-05-25 11:20:21] [INFO ] [Nat]Added 86 Read/Feed constraints in 20 ms returned sat
[2026-05-25 11:20:22] [INFO ] Computed and/alt/rep : 345/2340/345 causal constraints (skipped 386 transitions) in 111 ms.
[2026-05-25 11:20:22] [INFO ] Added : 12 causal constraints over 4 iterations in 374 ms. Result :sat
Minimization took 263 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:[0] Max Struct:[+inf]
Support contains 1 out of 448 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 448/448 places, 1280/1280 transitions.
Discarding 4 places :
Symmetric choice reduction at 0 with 4 rule applications. Total rules 4 place count 444 transition count 1272
Iterating global reduction 0 with 4 rules applied. Total rules applied 8 place count 444 transition count 1272
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 0 with 2 rules applied. Total rules applied 10 place count 444 transition count 1270
Discarding 4 places :
Symmetric choice reduction at 1 with 4 rule applications. Total rules 14 place count 440 transition count 1258
Iterating global reduction 1 with 4 rules applied. Total rules applied 18 place count 440 transition count 1258
Discarding 3 places :
Symmetric choice reduction at 1 with 3 rule applications. Total rules 21 place count 437 transition count 1250
Iterating global reduction 1 with 3 rules applied. Total rules applied 24 place count 437 transition count 1250
Discarding 3 places :
Symmetric choice reduction at 1 with 3 rule applications. Total rules 27 place count 434 transition count 1244
Iterating global reduction 1 with 3 rules applied. Total rules applied 30 place count 434 transition count 1244
Discarding 3 places :
Symmetric choice reduction at 1 with 3 rule applications. Total rules 33 place count 431 transition count 1238
Iterating global reduction 1 with 3 rules applied. Total rules applied 36 place count 431 transition count 1238
Discarding 3 places :
Symmetric choice reduction at 1 with 3 rule applications. Total rules 39 place count 428 transition count 1232
Iterating global reduction 1 with 3 rules applied. Total rules applied 42 place count 428 transition count 1232
Discarding 3 places :
Symmetric choice reduction at 1 with 3 rule applications. Total rules 45 place count 425 transition count 1226
Iterating global reduction 1 with 3 rules applied. Total rules applied 48 place count 425 transition count 1226
Discarding 3 places :
Symmetric choice reduction at 1 with 3 rule applications. Total rules 51 place count 422 transition count 1220
Iterating global reduction 1 with 3 rules applied. Total rules applied 54 place count 422 transition count 1220
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 55 place count 421 transition count 1218
Iterating global reduction 1 with 1 rules applied. Total rules applied 56 place count 421 transition count 1218
Applied a total of 56 rules in 142 ms. Remains 421 /448 variables (removed 27) and now considering 1218/1280 (removed 62) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 142 ms. Remains : 421/448 places, 1218/1280 transitions.
[2026-05-25 11:20:22] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {216=1, 307=1, 633=1, 686=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {252=1, 343=1, 541=1, 684=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 1) seen :[1]
Current structural bounds on expressions (after cover walk) : Max Seen:[1] Max Struct:[+inf]
[2026-05-25 11:20:23] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
// Phase 1: matrix 688 rows 421 cols
[2026-05-25 11:20:23] [INFO ] Computed 3 invariants in 7 ms
Current structural bounds on expressions (after invariants) : Max Seen:[1] Max Struct:[+inf]
RANDOM walk for 1000002 steps (2 resets) in 2644 ms. (378 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 1343 ms. (744 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[456] Max Struct:[+inf]
[2026-05-25 11:20:27] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
[2026-05-25 11:20:27] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:20:27] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 11:20:27] [INFO ] [Real]Absence check using state equation in 133 ms returned sat
[2026-05-25 11:20:27] [INFO ] State equation strengthened by 75 read => feed constraints.
[2026-05-25 11:20:27] [INFO ] [Real]Added 75 Read/Feed constraints in 38 ms returned sat
[2026-05-25 11:20:27] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:20:27] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 11:20:27] [INFO ] [Nat]Absence check using state equation in 154 ms returned sat
[2026-05-25 11:20:27] [INFO ] [Nat]Added 75 Read/Feed constraints in 20 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 11:20:27] [INFO ] Deduced a trap composed of 70 places in 219 ms of which 25 ms to minimize.
[2026-05-25 11:20:27] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 271 ms
[2026-05-25 11:20:27] [INFO ] Computed and/alt/rep : 332/1248/332 causal constraints (skipped 354 transitions) in 80 ms.
[2026-05-25 11:20:28] [INFO ] Added : 9 causal constraints over 3 iterations in 309 ms. Result :sat
Minimization took 293 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[456] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[456] Max Struct:[+inf]
Support contains 1 out of 421 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 421/421 places, 1218/1218 transitions.
Applied a total of 0 rules in 54 ms. Remains 421 /421 variables (removed 0) and now considering 1218/1218 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 54 ms. Remains : 421/421 places, 1218/1218 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 421/421 places, 1218/1218 transitions.
Applied a total of 0 rules in 50 ms. Remains 421 /421 variables (removed 0) and now considering 1218/1218 (removed 0) transitions.
[2026-05-25 11:20:28] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
[2026-05-25 11:20:28] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 11:20:28] [INFO ] Implicit Places using invariants in 280 ms returned []
[2026-05-25 11:20:28] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
[2026-05-25 11:20:28] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 11:20:29] [INFO ] State equation strengthened by 75 read => feed constraints.
[2026-05-25 11:20:31] [INFO ] Implicit Places using invariants and state equation in 2293 ms returned []
Implicit Place search using SMT with State Equation took 2576 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-25 11:20:31] [INFO ] Redundant transitions in 31 ms returned []
Running 1216 sub problems to find dead transitions.
[2026-05-25 11:20:31] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
[2026-05-25 11:20:31] [INFO ] Invariant cache hit.
[2026-05-25 11:20:31] [INFO ] State equation strengthened by 75 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/421 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 11:20:47] [INFO ] Deduced a trap composed of 131 places in 111 ms of which 4 ms to minimize.
At refinement iteration 1 (INCLUDED_ONLY) 0/421 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
Error getting values : (error "ParserException while parsing response: (timeout
org.smtlib.IParser$ParserException: Unbalanced parentheses at end of input")
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 421/1109 variables, and 4 constraints, problems are : Problem set: 0 solved, 1216 unsolved in 30033 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/421 constraints, ReadFeed: 0/75 constraints, PredecessorRefiner: 1216/1216 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1216 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/421 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/421 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/421 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
At refinement iteration 3 (OVERLAPS) 688/1109 variables, 421/425 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1109 variables, 75/500 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/1109 variables, 1216/1716 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1109/1109 variables, and 1716 constraints, problems are : Problem set: 0 solved, 1216 unsolved in 30041 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 421/421 constraints, ReadFeed: 75/75 constraints, PredecessorRefiner: 1216/1216 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 62169ms problems are : Problem set: 0 solved, 1216 unsolved
Search for dead transitions found 0 dead transitions in 62172ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 64842 ms. Remains : 421/421 places, 1218/1218 transitions.
[2026-05-25 11:21:33] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {216=1, 307=1, 633=1, 686=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {252=1, 343=1, 541=1, 684=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 80 ms. (steps per millisecond=125 ) properties (out of 1) seen :[2]
Current structural bounds on expressions (after cover walk) : Max Seen:[456] Max Struct:[+inf]
[2026-05-25 11:21:33] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
[2026-05-25 11:21:33] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[456] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 2708 ms. (369 steps per ms)
BEST_FIRST walk for 1000000 steps (2 resets) in 1369 ms. (729 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[464] Max Struct:[+inf]
[2026-05-25 11:21:37] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
[2026-05-25 11:21:37] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:21:37] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 11:21:38] [INFO ] [Real]Absence check using state equation in 144 ms returned sat
[2026-05-25 11:21:38] [INFO ] State equation strengthened by 75 read => feed constraints.
[2026-05-25 11:21:38] [INFO ] [Real]Added 75 Read/Feed constraints in 35 ms returned sat
[2026-05-25 11:21:38] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:21:38] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 11:21:38] [INFO ] [Nat]Absence check using state equation in 151 ms returned sat
[2026-05-25 11:21:38] [INFO ] [Nat]Added 75 Read/Feed constraints in 23 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 11:21:38] [INFO ] Deduced a trap composed of 70 places in 231 ms of which 26 ms to minimize.
[2026-05-25 11:21:38] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 294 ms
[2026-05-25 11:21:38] [INFO ] Computed and/alt/rep : 332/1248/332 causal constraints (skipped 354 transitions) in 71 ms.
[2026-05-25 11:21:38] [INFO ] Added : 9 causal constraints over 3 iterations in 278 ms. Result :sat
Minimization took 239 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[464] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[464] Max Struct:[+inf]
Support contains 1 out of 421 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 421/421 places, 1218/1218 transitions.
Applied a total of 0 rules in 44 ms. Remains 421 /421 variables (removed 0) and now considering 1218/1218 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 44 ms. Remains : 421/421 places, 1218/1218 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 421/421 places, 1218/1218 transitions.
Applied a total of 0 rules in 49 ms. Remains 421 /421 variables (removed 0) and now considering 1218/1218 (removed 0) transitions.
[2026-05-25 11:21:39] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
[2026-05-25 11:21:39] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 11:21:39] [INFO ] Implicit Places using invariants in 276 ms returned []
[2026-05-25 11:21:39] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
[2026-05-25 11:21:39] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 11:21:39] [INFO ] State equation strengthened by 75 read => feed constraints.
[2026-05-25 11:21:41] [INFO ] Implicit Places using invariants and state equation in 2279 ms returned []
Implicit Place search using SMT with State Equation took 2558 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-25 11:21:41] [INFO ] Redundant transitions in 22 ms returned []
Running 1216 sub problems to find dead transitions.
[2026-05-25 11:21:41] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
[2026-05-25 11:21:41] [INFO ] Invariant cache hit.
[2026-05-25 11:21:41] [INFO ] State equation strengthened by 75 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/421 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 11:21:56] [INFO ] Deduced a trap composed of 131 places in 108 ms of which 5 ms to minimize.
At refinement iteration 1 (INCLUDED_ONLY) 0/421 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 421/1109 variables, and 4 constraints, problems are : Problem set: 0 solved, 1216 unsolved in 30025 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/421 constraints, ReadFeed: 0/75 constraints, PredecessorRefiner: 1216/1216 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1216 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/421 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/421 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/421 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
At refinement iteration 3 (OVERLAPS) 688/1109 variables, 421/425 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1109 variables, 75/500 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/1109 variables, 1216/1716 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1109/1109 variables, and 1716 constraints, problems are : Problem set: 0 solved, 1216 unsolved in 30038 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 421/421 constraints, ReadFeed: 75/75 constraints, PredecessorRefiner: 1216/1216 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 61732ms problems are : Problem set: 0 solved, 1216 unsolved
Search for dead transitions found 0 dead transitions in 61734ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 64377 ms. Remains : 421/421 places, 1218/1218 transitions.
[2026-05-25 11:22:43] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {216=1, 307=1, 633=1, 686=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {252=1, 343=1, 541=1, 684=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 81 ms. (steps per millisecond=123 ) properties (out of 1) seen :[2]
Current structural bounds on expressions (after cover walk) : Max Seen:[464] Max Struct:[+inf]
[2026-05-25 11:22:43] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
[2026-05-25 11:22:43] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[464] Max Struct:[+inf]
RANDOM walk for 1000001 steps (2 resets) in 2547 ms. (392 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 1344 ms. (743 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[464] Max Struct:[+inf]
[2026-05-25 11:22:47] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
[2026-05-25 11:22:47] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:22:47] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 11:22:48] [INFO ] [Real]Absence check using state equation in 128 ms returned sat
[2026-05-25 11:22:48] [INFO ] State equation strengthened by 75 read => feed constraints.
[2026-05-25 11:22:48] [INFO ] [Real]Added 75 Read/Feed constraints in 34 ms returned sat
[2026-05-25 11:22:48] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:22:48] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 11:22:48] [INFO ] [Nat]Absence check using state equation in 125 ms returned sat
[2026-05-25 11:22:48] [INFO ] [Nat]Added 75 Read/Feed constraints in 19 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 11:22:48] [INFO ] Deduced a trap composed of 70 places in 206 ms of which 25 ms to minimize.
[2026-05-25 11:22:48] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 251 ms
[2026-05-25 11:22:48] [INFO ] Computed and/alt/rep : 332/1248/332 causal constraints (skipped 354 transitions) in 76 ms.
[2026-05-25 11:22:48] [INFO ] Added : 9 causal constraints over 3 iterations in 308 ms. Result :sat
Minimization took 236 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[464] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[464] Max Struct:[+inf]
Support contains 1 out of 421 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 421/421 places, 1218/1218 transitions.
Applied a total of 0 rules in 52 ms. Remains 421 /421 variables (removed 0) and now considering 1218/1218 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 52 ms. Remains : 421/421 places, 1218/1218 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 421/421 places, 1218/1218 transitions.
Applied a total of 0 rules in 52 ms. Remains 421 /421 variables (removed 0) and now considering 1218/1218 (removed 0) transitions.
[2026-05-25 11:22:49] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
[2026-05-25 11:22:49] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 11:22:49] [INFO ] Implicit Places using invariants in 289 ms returned []
[2026-05-25 11:22:49] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
[2026-05-25 11:22:49] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 11:22:49] [INFO ] State equation strengthened by 75 read => feed constraints.
[2026-05-25 11:22:51] [INFO ] Implicit Places using invariants and state equation in 2274 ms returned []
Implicit Place search using SMT with State Equation took 2564 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-25 11:22:51] [INFO ] Redundant transitions in 27 ms returned []
Running 1216 sub problems to find dead transitions.
[2026-05-25 11:22:51] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
[2026-05-25 11:22:51] [INFO ] Invariant cache hit.
[2026-05-25 11:22:51] [INFO ] State equation strengthened by 75 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/421 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 11:23:07] [INFO ] Deduced a trap composed of 131 places in 111 ms of which 4 ms to minimize.
At refinement iteration 1 (INCLUDED_ONLY) 0/421 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 421/1109 variables, and 4 constraints, problems are : Problem set: 0 solved, 1216 unsolved in 30022 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/421 constraints, ReadFeed: 0/75 constraints, PredecessorRefiner: 1216/1216 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1216 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/421 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/421 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/421 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
At refinement iteration 3 (OVERLAPS) 688/1109 variables, 421/425 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1109 variables, 75/500 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/1109 variables, 1216/1716 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1109/1109 variables, and 1716 constraints, problems are : Problem set: 0 solved, 1216 unsolved in 30037 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 421/421 constraints, ReadFeed: 75/75 constraints, PredecessorRefiner: 1216/1216 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 62071ms problems are : Problem set: 0 solved, 1216 unsolved
Search for dead transitions found 0 dead transitions in 62073ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 64724 ms. Remains : 421/421 places, 1218/1218 transitions.
[2026-05-25 11:23:53] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {216=1, 307=1, 633=1, 686=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {252=1, 343=1, 541=1, 684=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 81 ms. (steps per millisecond=123 ) properties (out of 1) seen :[0]
Current structural bounds on expressions (after cover walk) : Max Seen:[464] Max Struct:[+inf]
[2026-05-25 11:23:54] [INFO ] Flatten gal took : 51 ms
[2026-05-25 11:23:54] [INFO ] Flatten gal took : 28 ms
RANDOM walk for 40006 steps (8 resets) in 259 ms. (153 steps per ms) remains 1/1 properties
[2026-05-25 11:23:54] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality1220977760395555097.gal : 6 ms
[2026-05-25 11:23:54] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality6906061427573162043.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/ReachabilityCardinality1220977760395555097.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality6906061427573162043.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...328
BEST_FIRST walk for 40004 steps (8 resets) in 58 ms. (678 steps per ms) remains 1/1 properties
Loading property file /tmp/ReachabilityCardinality6906061427573162043.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 1995
SDD proceeding with computation,1 properties remain. new max is 16
SDD size :1995 after 1.24464e+06
Interrupted probabilistic random walk after 528450 steps, run timeout after 3001 ms. (steps per millisecond=176 ) properties seen :0 out of 1
Probabilistic random walk after 528450 steps, saw 324040 distinct states, run finished after 3001 ms. (steps per millisecond=176 ) properties seen :0
[2026-05-25 11:23:57] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
[2026-05-25 11:23:57] [INFO ] Invariant cache hit.
[2026-05-25 11:23:57] [INFO ] State equation strengthened by 75 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) 6/9 variables, 2/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/9 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 10/19 variables, 4/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/19 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 352/371 variables, 8/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/371 variables, 1/16 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/371 variables, 0/16 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 7/378 variables, 2/18 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/378 variables, 3/21 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/378 variables, 0/21 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 604/982 variables, 337/358 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/982 variables, 74/432 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 15 (INCLUDED_ONLY) 0/982 variables, 0/432 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 62/1044 variables, 1/433 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/1044 variables, 0/433 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 65/1109 variables, 66/499 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/1109 variables, 0/499 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (OVERLAPS) 0/1109 variables, 0/499 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 1109/1109 variables, and 499 constraints, problems are : Problem set: 0 solved, 1 unsolved in 354 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 421/421 constraints, ReadFeed: 75/75 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) 6/9 variables, 2/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/9 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 10/19 variables, 4/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/19 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 352/371 variables, 8/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/371 variables, 1/16 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/371 variables, 1/17 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/371 variables, 0/17 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 7/378 variables, 2/19 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/378 variables, 3/22 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/378 variables, 0/22 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 604/982 variables, 337/359 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/982 variables, 74/433 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/982 variables, 0/433 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 62/1044 variables, 1/434 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/1044 variables, 0/434 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 65/1109 variables, 66/500 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/1109 variables, 0/500 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 0/1109 variables, 0/500 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 1109/1109 variables, and 500 constraints, problems are : Problem set: 0 solved, 1 unsolved in 403 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 421/421 constraints, ReadFeed: 75/75 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 766ms problems are : Problem set: 0 solved, 1 unsolved
SDD proceeding with computation,1 properties remain. new max is 32
SDD size :1.24464e+06 after 3.74714e+10
Parikh walk visited 0 properties in 2966 ms.
Support contains 1 out of 421 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 421/421 places, 1218/1218 transitions.
Applied a total of 0 rules in 62 ms. Remains 421 /421 variables (removed 0) and now considering 1218/1218 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 62 ms. Remains : 421/421 places, 1218/1218 transitions.
RANDOM walk for 40000 steps (8 resets) in 192 ms. (207 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (8 resets) in 48 ms. (816 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 511805 steps, run timeout after 3001 ms. (steps per millisecond=170 ) properties seen :0 out of 1
Probabilistic random walk after 511805 steps, saw 313833 distinct states, run finished after 3001 ms. (steps per millisecond=170 ) properties seen :0
[2026-05-25 11:24:04] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
[2026-05-25 11:24:04] [INFO ] Invariant cache hit.
[2026-05-25 11:24:04] [INFO ] State equation strengthened by 75 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) 6/9 variables, 2/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/9 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 10/19 variables, 4/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/19 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 352/371 variables, 8/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/371 variables, 1/16 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/371 variables, 0/16 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 7/378 variables, 2/18 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/378 variables, 3/21 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/378 variables, 0/21 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 604/982 variables, 337/358 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/982 variables, 74/432 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 15 (INCLUDED_ONLY) 0/982 variables, 0/432 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 62/1044 variables, 1/433 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/1044 variables, 0/433 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 65/1109 variables, 66/499 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/1109 variables, 0/499 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (OVERLAPS) 0/1109 variables, 0/499 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 1109/1109 variables, and 499 constraints, problems are : Problem set: 0 solved, 1 unsolved in 283 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 421/421 constraints, ReadFeed: 75/75 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) 6/9 variables, 2/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/9 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 10/19 variables, 4/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/19 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 352/371 variables, 8/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/371 variables, 1/16 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/371 variables, 1/17 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/371 variables, 0/17 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 7/378 variables, 2/19 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/378 variables, 3/22 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/378 variables, 0/22 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 604/982 variables, 337/359 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/982 variables, 74/433 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/982 variables, 0/433 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 62/1044 variables, 1/434 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/1044 variables, 0/434 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 65/1109 variables, 66/500 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/1109 variables, 0/500 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 0/1109 variables, 0/500 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 1109/1109 variables, and 500 constraints, problems are : Problem set: 0 solved, 1 unsolved in 331 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 421/421 constraints, ReadFeed: 75/75 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 623ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 3085 ms.
Support contains 1 out of 421 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 421/421 places, 1218/1218 transitions.
Applied a total of 0 rules in 47 ms. Remains 421 /421 variables (removed 0) and now considering 1218/1218 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 47 ms. Remains : 421/421 places, 1218/1218 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 421/421 places, 1218/1218 transitions.
Applied a total of 0 rules in 53 ms. Remains 421 /421 variables (removed 0) and now considering 1218/1218 (removed 0) transitions.
[2026-05-25 11:24:08] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
[2026-05-25 11:24:08] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 11:24:08] [INFO ] Implicit Places using invariants in 300 ms returned []
[2026-05-25 11:24:08] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
[2026-05-25 11:24:08] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 11:24:08] [INFO ] State equation strengthened by 75 read => feed constraints.
[2026-05-25 11:24:10] [INFO ] Implicit Places using invariants and state equation in 2208 ms returned []
Implicit Place search using SMT with State Equation took 2510 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-25 11:24:10] [INFO ] Redundant transitions in 24 ms returned []
Running 1216 sub problems to find dead transitions.
[2026-05-25 11:24:10] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
[2026-05-25 11:24:10] [INFO ] Invariant cache hit.
[2026-05-25 11:24:10] [INFO ] State equation strengthened by 75 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/421 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
SDD proceeding with computation,1 properties remain. new max is 64
SDD size :3.74714e+10 after 5.80652e+17
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 11:24:26] [INFO ] Deduced a trap composed of 131 places in 124 ms of which 5 ms to minimize.
At refinement iteration 1 (INCLUDED_ONLY) 0/421 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 421/1109 variables, and 4 constraints, problems are : Problem set: 0 solved, 1216 unsolved in 30023 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/421 constraints, ReadFeed: 0/75 constraints, PredecessorRefiner: 1216/1216 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1216 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/421 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/421 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
Detected timeout of ITS tools.
[2026-05-25 11:24:44] [INFO ] Flatten gal took : 25 ms
[2026-05-25 11:24:44] [INFO ] Applying decomposition
[2026-05-25 11:24:44] [INFO ] Flatten gal took : 25 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/graph6110669290490908743.txt' '-o' '/tmp/graph6110669290490908743.bin' '-w' '/tmp/graph6110669290490908743.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/louvain-linux64' '/tmp/graph6110669290490908743.bin' '-l' '-1' '-v' '-w' '/tmp/graph6110669290490908743.weights' '-q' '0' '-e' '0.001'
[2026-05-25 11:24:44] [INFO ] Decomposing Gal with order
[2026-05-25 11:24:44] [INFO ] Rewriting arrays to variables to allow decomposition.
[2026-05-25 11:24:44] [INFO ] Removed a total of 2084 redundant transitions.
[2026-05-25 11:24:44] [INFO ] Flatten gal took : 51 ms
[2026-05-25 11:24:44] [INFO ] Fuse similar labels procedure discarded/fused a total of 876 labels/synchronizations in 44 ms.
[2026-05-25 11:24:44] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality1082769994872268269.gal : 6 ms
[2026-05-25 11:24:44] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality5002360480180483432.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/ReachabilityCardinality1082769994872268269.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality5002360480180483432.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/ReachabilityCardinality5002360480180483432.prop.
At refinement iteration 2 (INCLUDED_ONLY) 0/421 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
At refinement iteration 3 (OVERLAPS) 688/1109 variables, 421/425 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1109 variables, 75/500 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/1109 variables, 1216/1716 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1109/1109 variables, and 1716 constraints, problems are : Problem set: 0 solved, 1216 unsolved in 30034 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 421/421 constraints, ReadFeed: 75/75 constraints, PredecessorRefiner: 1216/1216 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 61988ms problems are : Problem set: 0 solved, 1216 unsolved
Search for dead transitions found 0 dead transitions in 61989ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 64590 ms. Remains : 421/421 places, 1218/1218 transitions.
Attempting over-approximation, by ignoring read arcs.
Ensure Unique test removed 530 transitions
Reduce isomorphic transitions removed 530 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 10 transitions
Trivial Post-agglo rules discarded 10 transitions
Performed 10 trivial Post agglomeration. Transition count delta: 10
Iterating post reduction 0 with 540 rules applied. Total rules applied 540 place count 421 transition count 678
Reduce places removed 10 places and 0 transitions.
Iterating post reduction 1 with 10 rules applied. Total rules applied 550 place count 411 transition count 678
Performed 73 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 73 Pre rules applied. Total rules applied 550 place count 411 transition count 605
Deduced a syphon composed of 73 places in 1 ms
Reduce places removed 73 places and 0 transitions.
Iterating global reduction 2 with 146 rules applied. Total rules applied 696 place count 338 transition count 605
Performed 127 Post agglomeration using F-continuation condition.Transition count delta: 127
Deduced a syphon composed of 127 places in 0 ms
Reduce places removed 127 places and 0 transitions.
Iterating global reduction 2 with 254 rules applied. Total rules applied 950 place count 211 transition count 478
Discarding 64 places :
Symmetric choice reduction at 2 with 64 rule applications. Total rules 1014 place count 147 transition count 350
Iterating global reduction 2 with 64 rules applied. Total rules applied 1078 place count 147 transition count 350
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 2 with 1 rules applied. Total rules applied 1079 place count 147 transition count 349
Discarding 63 places :
Symmetric choice reduction at 3 with 63 rule applications. Total rules 1142 place count 84 transition count 223
Iterating global reduction 3 with 63 rules applied. Total rules applied 1205 place count 84 transition count 223
Discarding 63 places :
Symmetric choice reduction at 3 with 63 rule applications. Total rules 1268 place count 21 transition count 97
Iterating global reduction 3 with 63 rules applied. Total rules applied 1331 place count 21 transition count 97
Ensure Unique test removed 63 transitions
Reduce isomorphic transitions removed 63 transitions.
Iterating post reduction 3 with 63 rules applied. Total rules applied 1394 place count 21 transition count 34
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 4 with 1 Pre rules applied. Total rules applied 1394 place count 21 transition count 33
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 1396 place count 20 transition count 33
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 4 with 2 rules applied. Total rules applied 1398 place count 19 transition count 32
Drop transitions (Redundant composition of simpler transitions.) removed 1 transitions
Redundant transition composition rules discarded 1 transitions
Iterating global reduction 4 with 1 rules applied. Total rules applied 1399 place count 19 transition count 31
Applied a total of 1399 rules in 58 ms. Remains 19 /421 variables (removed 402) and now considering 31/1218 (removed 1187) transitions.
Running SMT prover for 1 properties.
// Phase 1: matrix 31 rows 19 cols
[2026-05-25 11:25:12] [INFO ] Computed 3 invariants in 1 ms
Starting Z3 with timeout 450.0 s and query timeout 45000.0 ms
[2026-05-25 11:25:12] [INFO ] [Real]Absence check using 3 positive place invariants in 1 ms returned sat
[2026-05-25 11:25:12] [INFO ] After 8ms SMT Verify possible using state equation in real domain returned unsat :0 sat :1
[2026-05-25 11:25:12] [INFO ] State equation strengthened by 2 read => feed constraints.
[2026-05-25 11:25:12] [INFO ] After 2ms SMT Verify possible using 2 Read/Feed constraints in real domain returned unsat :0 sat :0 real:1
[2026-05-25 11:25:12] [INFO ] After 33ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
Starting Z3 with timeout 450.0 s and query timeout 45000.0 ms
[2026-05-25 11:25:12] [INFO ] [Nat]Absence check using 3 positive place invariants in 0 ms returned sat
[2026-05-25 11:25:12] [INFO ] After 7ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
[2026-05-25 11:25:12] [INFO ] After 2ms SMT Verify possible using 2 Read/Feed constraints in natural domain returned unsat :0 sat :1
TRAPS : Iteration 0
[2026-05-25 11:25:12] [INFO ] After 4ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
[2026-05-25 11:25:12] [INFO ] After 30ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
[2026-05-25 11:25:12] [INFO ] Flatten gal took : 1 ms
[2026-05-25 11:25:12] [INFO ] Flatten gal took : 1 ms
[2026-05-25 11:25:12] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality13903807022670417010.gal : 1 ms
[2026-05-25 11:25:12] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality15847537281437141940.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/ReachabilityCardinality13903807022670417010.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality15847537281437141940.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...330
Loading property file /tmp/ReachabilityCardinality15847537281437141940.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.
[2026-05-25 11:25:27] [INFO ] Flatten gal took : 1 ms
[2026-05-25 11:25:27] [INFO ] Applying decomposition
[2026-05-25 11:25:27] [INFO ] Flatten gal took : 0 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/graph16057529590078850724.txt' '-o' '/tmp/graph16057529590078850724.bin' '-w' '/tmp/graph16057529590078850724.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/louvain-linux64' '/tmp/graph16057529590078850724.bin' '-l' '-1' '-v' '-w' '/tmp/graph16057529590078850724.weights' '-q' '0' '-e' '0.001'
[2026-05-25 11:25:27] [INFO ] Decomposing Gal with order
[2026-05-25 11:25:27] [INFO ] Rewriting arrays to variables to allow decomposition.
[2026-05-25 11:25:27] [INFO ] Removed a total of 30 redundant transitions.
[2026-05-25 11:25:27] [INFO ] Flatten gal took : 2 ms
[2026-05-25 11:25:27] [INFO ] Fuse similar labels procedure discarded/fused a total of 2 labels/synchronizations in 0 ms.
[2026-05-25 11:25:27] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality11427339401371500644.gal : 0 ms
[2026-05-25 11:25:27] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality11470980503979131600.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/ReachabilityCardinality11427339401371500644.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality11470980503979131600.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/ReachabilityCardinality11470980503979131600.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.
Detected timeout of ITS tools.
Over-approximation ignoring read arcs solved 0 properties in 30202 ms.
Current structural bounds on expressions (After reachability solving 0 queries.) : Max Seen:[464] Max Struct:[+inf]
Ending property specific reduction for FunctionPointer-PT-c064-UpperBounds-06 in 321384 ms.
Starting property specific reduction for FunctionPointer-PT-c064-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]
[2026-05-25 11:25:42] [INFO ] Flow matrix only has 733 transitions (discarded 547 similar events)
// Phase 1: matrix 733 rows 448 cols
[2026-05-25 11:25:42] [INFO ] Computed 3 invariants in 9 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[+inf]
RANDOM walk for 10000 steps (2 resets) in 36 ms. (270 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]
[2026-05-25 11:25:42] [INFO ] Flow matrix only has 733 transitions (discarded 547 similar events)
[2026-05-25 11:25:42] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 11:25:42] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 11:25:43] [INFO ] [Real]Absence check using state equation in 151 ms returned sat
[2026-05-25 11:25:43] [INFO ] State equation strengthened by 86 read => feed constraints.
[2026-05-25 11:25:43] [INFO ] [Real]Added 86 Read/Feed constraints in 20 ms returned sat
[2026-05-25 11:25:43] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 11:25:43] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 11:25:43] [INFO ] [Nat]Absence check using state equation in 148 ms returned sat
[2026-05-25 11:25:43] [INFO ] [Nat]Added 86 Read/Feed constraints in 19 ms returned sat
[2026-05-25 11:25:43] [INFO ] Computed and/alt/rep : 345/2340/345 causal constraints (skipped 386 transitions) in 97 ms.
[2026-05-25 11:25:43] [INFO ] Added : 22 causal constraints over 6 iterations in 383 ms. Result :sat
Minimization took 245 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:[0] Max Struct:[+inf]
Support contains 1 out of 448 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 448/448 places, 1280/1280 transitions.
Discarding 4 places :
Symmetric choice reduction at 0 with 4 rule applications. Total rules 4 place count 444 transition count 1272
Iterating global reduction 0 with 4 rules applied. Total rules applied 8 place count 444 transition count 1272
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 0 with 2 rules applied. Total rules applied 10 place count 444 transition count 1270
Discarding 4 places :
Symmetric choice reduction at 1 with 4 rule applications. Total rules 14 place count 440 transition count 1258
Iterating global reduction 1 with 4 rules applied. Total rules applied 18 place count 440 transition count 1258
Discarding 3 places :
Symmetric choice reduction at 1 with 3 rule applications. Total rules 21 place count 437 transition count 1250
Iterating global reduction 1 with 3 rules applied. Total rules applied 24 place count 437 transition count 1250
Discarding 3 places :
Symmetric choice reduction at 1 with 3 rule applications. Total rules 27 place count 434 transition count 1244
Iterating global reduction 1 with 3 rules applied. Total rules applied 30 place count 434 transition count 1244
Discarding 3 places :
Symmetric choice reduction at 1 with 3 rule applications. Total rules 33 place count 431 transition count 1238
Iterating global reduction 1 with 3 rules applied. Total rules applied 36 place count 431 transition count 1238
Discarding 3 places :
Symmetric choice reduction at 1 with 3 rule applications. Total rules 39 place count 428 transition count 1232
Iterating global reduction 1 with 3 rules applied. Total rules applied 42 place count 428 transition count 1232
Discarding 3 places :
Symmetric choice reduction at 1 with 3 rule applications. Total rules 45 place count 425 transition count 1226
Iterating global reduction 1 with 3 rules applied. Total rules applied 48 place count 425 transition count 1226
Discarding 3 places :
Symmetric choice reduction at 1 with 3 rule applications. Total rules 51 place count 422 transition count 1220
Iterating global reduction 1 with 3 rules applied. Total rules applied 54 place count 422 transition count 1220
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 55 place count 421 transition count 1218
Iterating global reduction 1 with 1 rules applied. Total rules applied 56 place count 421 transition count 1218
Applied a total of 56 rules in 129 ms. Remains 421 /448 variables (removed 27) and now considering 1218/1280 (removed 62) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 129 ms. Remains : 421/448 places, 1218/1280 transitions.
[2026-05-25 11:25:44] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {233=1, 324=1, 522=1, 683=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {252=1, 343=1, 541=1, 684=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 1) seen :[2]
Current structural bounds on expressions (after cover walk) : Max Seen:[2] Max Struct:[+inf]
[2026-05-25 11:25:44] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
// Phase 1: matrix 688 rows 421 cols
[2026-05-25 11:25:44] [INFO ] Computed 3 invariants in 8 ms
Current structural bounds on expressions (after invariants) : Max Seen:[2] Max Struct:[+inf]
RANDOM walk for 1000001 steps (2 resets) in 2701 ms. (370 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 1346 ms. (742 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[444] Max Struct:[+inf]
[2026-05-25 11:25:48] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
[2026-05-25 11:25:48] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:25:48] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 11:25:48] [INFO ] [Real]Absence check using state equation in 126 ms returned sat
[2026-05-25 11:25:48] [INFO ] State equation strengthened by 75 read => feed constraints.
[2026-05-25 11:25:48] [INFO ] [Real]Added 75 Read/Feed constraints in 32 ms returned sat
[2026-05-25 11:25:48] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:25:48] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 11:25:49] [INFO ] [Nat]Absence check using state equation in 125 ms returned sat
[2026-05-25 11:25:49] [INFO ] [Nat]Added 75 Read/Feed constraints in 28 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 11:25:49] [INFO ] Deduced a trap composed of 70 places in 206 ms of which 25 ms to minimize.
[2026-05-25 11:25:49] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 249 ms
[2026-05-25 11:25:49] [INFO ] Computed and/alt/rep : 332/1248/332 causal constraints (skipped 354 transitions) in 71 ms.
[2026-05-25 11:25:49] [INFO ] Added : 8 causal constraints over 2 iterations in 246 ms. Result :sat
Minimization took 237 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[444] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[444] Max Struct:[+inf]
Support contains 1 out of 421 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 421/421 places, 1218/1218 transitions.
Applied a total of 0 rules in 59 ms. Remains 421 /421 variables (removed 0) and now considering 1218/1218 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 60 ms. Remains : 421/421 places, 1218/1218 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 421/421 places, 1218/1218 transitions.
Applied a total of 0 rules in 49 ms. Remains 421 /421 variables (removed 0) and now considering 1218/1218 (removed 0) transitions.
[2026-05-25 11:25:49] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
[2026-05-25 11:25:49] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 11:25:50] [INFO ] Implicit Places using invariants in 278 ms returned []
[2026-05-25 11:25:50] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
[2026-05-25 11:25:50] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 11:25:50] [INFO ] State equation strengthened by 75 read => feed constraints.
[2026-05-25 11:25:52] [INFO ] Implicit Places using invariants and state equation in 2567 ms returned []
Implicit Place search using SMT with State Equation took 2846 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-25 11:25:52] [INFO ] Redundant transitions in 26 ms returned []
Running 1216 sub problems to find dead transitions.
[2026-05-25 11:25:52] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
[2026-05-25 11:25:52] [INFO ] Invariant cache hit.
[2026-05-25 11:25:52] [INFO ] State equation strengthened by 75 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/421 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 11:26:08] [INFO ] Deduced a trap composed of 131 places in 124 ms of which 5 ms to minimize.
At refinement iteration 1 (INCLUDED_ONLY) 0/421 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 421/1109 variables, and 4 constraints, problems are : Problem set: 0 solved, 1216 unsolved in 30023 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/421 constraints, ReadFeed: 0/75 constraints, PredecessorRefiner: 1216/1216 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1216 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/421 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/421 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/421 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
At refinement iteration 3 (OVERLAPS) 688/1109 variables, 421/425 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1109 variables, 75/500 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/1109 variables, 1216/1716 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1109/1109 variables, and 1716 constraints, problems are : Problem set: 0 solved, 1216 unsolved in 30039 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 421/421 constraints, ReadFeed: 75/75 constraints, PredecessorRefiner: 1216/1216 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 62135ms problems are : Problem set: 0 solved, 1216 unsolved
Search for dead transitions found 0 dead transitions in 62137ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 65085 ms. Remains : 421/421 places, 1218/1218 transitions.
[2026-05-25 11:26:54] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {233=1, 324=1, 522=1, 683=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {252=1, 343=1, 541=1, 684=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 81 ms. (steps per millisecond=123 ) properties (out of 1) seen :[3]
Current structural bounds on expressions (after cover walk) : Max Seen:[444] Max Struct:[+inf]
[2026-05-25 11:26:55] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
[2026-05-25 11:26:55] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[444] Max Struct:[+inf]
RANDOM walk for 1000006 steps (2 resets) in 2523 ms. (396 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 1287 ms. (776 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[444] Max Struct:[+inf]
[2026-05-25 11:26:59] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
[2026-05-25 11:26:59] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:26:59] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 11:26:59] [INFO ] [Real]Absence check using state equation in 142 ms returned sat
[2026-05-25 11:26:59] [INFO ] State equation strengthened by 75 read => feed constraints.
[2026-05-25 11:26:59] [INFO ] [Real]Added 75 Read/Feed constraints in 34 ms returned sat
[2026-05-25 11:26:59] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:26:59] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 11:26:59] [INFO ] [Nat]Absence check using state equation in 124 ms returned sat
[2026-05-25 11:26:59] [INFO ] [Nat]Added 75 Read/Feed constraints in 29 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 11:26:59] [INFO ] Deduced a trap composed of 70 places in 210 ms of which 23 ms to minimize.
[2026-05-25 11:26:59] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 269 ms
[2026-05-25 11:26:59] [INFO ] Computed and/alt/rep : 332/1248/332 causal constraints (skipped 354 transitions) in 67 ms.
[2026-05-25 11:27:00] [INFO ] Added : 8 causal constraints over 2 iterations in 246 ms. Result :sat
Minimization took 218 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[444] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[444] Max Struct:[+inf]
Support contains 1 out of 421 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 421/421 places, 1218/1218 transitions.
Applied a total of 0 rules in 45 ms. Remains 421 /421 variables (removed 0) and now considering 1218/1218 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 45 ms. Remains : 421/421 places, 1218/1218 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 421/421 places, 1218/1218 transitions.
Applied a total of 0 rules in 46 ms. Remains 421 /421 variables (removed 0) and now considering 1218/1218 (removed 0) transitions.
[2026-05-25 11:27:00] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
[2026-05-25 11:27:00] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 11:27:00] [INFO ] Implicit Places using invariants in 275 ms returned []
[2026-05-25 11:27:00] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
[2026-05-25 11:27:00] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 11:27:00] [INFO ] State equation strengthened by 75 read => feed constraints.
[2026-05-25 11:27:03] [INFO ] Implicit Places using invariants and state equation in 2546 ms returned []
Implicit Place search using SMT with State Equation took 2822 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-25 11:27:03] [INFO ] Redundant transitions in 25 ms returned []
Running 1216 sub problems to find dead transitions.
[2026-05-25 11:27:03] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
[2026-05-25 11:27:03] [INFO ] Invariant cache hit.
[2026-05-25 11:27:03] [INFO ] State equation strengthened by 75 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/421 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 11:27:18] [INFO ] Deduced a trap composed of 131 places in 110 ms of which 5 ms to minimize.
At refinement iteration 1 (INCLUDED_ONLY) 0/421 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 421/1109 variables, and 4 constraints, problems are : Problem set: 0 solved, 1216 unsolved in 30022 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/421 constraints, ReadFeed: 0/75 constraints, PredecessorRefiner: 1216/1216 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1216 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/421 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/421 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/421 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
At refinement iteration 3 (OVERLAPS) 688/1109 variables, 421/425 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1109 variables, 75/500 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/1109 variables, 1216/1716 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1109/1109 variables, and 1716 constraints, problems are : Problem set: 0 solved, 1216 unsolved in 30030 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 421/421 constraints, ReadFeed: 75/75 constraints, PredecessorRefiner: 1216/1216 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 61897ms problems are : Problem set: 0 solved, 1216 unsolved
Search for dead transitions found 0 dead transitions in 61899ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 64803 ms. Remains : 421/421 places, 1218/1218 transitions.
[2026-05-25 11:28:05] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {233=1, 324=1, 522=1, 683=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {252=1, 343=1, 541=1, 684=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 80 ms. (steps per millisecond=125 ) properties (out of 1) seen :[2]
Current structural bounds on expressions (after cover walk) : Max Seen:[444] Max Struct:[+inf]
[2026-05-25 11:28:05] [INFO ] Flatten gal took : 27 ms
RANDOM walk for 40005 steps (8 resets) in 176 ms. (226 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (8 resets) in 31 ms. (1250 steps per ms) remains 1/1 properties
[2026-05-25 11:28:05] [INFO ] Flatten gal took : 37 ms
[2026-05-25 11:28:05] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality2231825484819739877.gal : 6 ms
[2026-05-25 11:28:05] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality14348682526926457524.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/ReachabilityCardinality2231825484819739877.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality14348682526926457524.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/ReachabilityCardinality14348682526926457524.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 1995
SDD proceeding with computation,1 properties remain. new max is 16
SDD size :1995 after 1.24464e+06
Interrupted probabilistic random walk after 543173 steps, run timeout after 3001 ms. (steps per millisecond=180 ) properties seen :0 out of 1
Probabilistic random walk after 543173 steps, saw 333065 distinct states, run finished after 3002 ms. (steps per millisecond=180 ) properties seen :0
[2026-05-25 11:28:08] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
[2026-05-25 11:28:08] [INFO ] Invariant cache hit.
[2026-05-25 11:28:08] [INFO ] State equation strengthened by 75 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) 6/9 variables, 2/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/9 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 10/19 variables, 4/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/19 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 352/371 variables, 8/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/371 variables, 1/16 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/371 variables, 0/16 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 7/378 variables, 2/18 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/378 variables, 3/21 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/378 variables, 0/21 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 604/982 variables, 337/358 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/982 variables, 74/432 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 15 (INCLUDED_ONLY) 0/982 variables, 0/432 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 62/1044 variables, 1/433 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/1044 variables, 0/433 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 65/1109 variables, 66/499 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/1109 variables, 0/499 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (OVERLAPS) 0/1109 variables, 0/499 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 1109/1109 variables, and 499 constraints, problems are : Problem set: 0 solved, 1 unsolved in 291 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 421/421 constraints, ReadFeed: 75/75 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) 6/9 variables, 2/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/9 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 10/19 variables, 4/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/19 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 352/371 variables, 8/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/371 variables, 1/16 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/371 variables, 1/17 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/371 variables, 0/17 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 7/378 variables, 2/19 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/378 variables, 3/22 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/378 variables, 0/22 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 604/982 variables, 337/359 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/982 variables, 74/433 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/982 variables, 0/433 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 62/1044 variables, 1/434 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/1044 variables, 0/434 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 65/1109 variables, 66/500 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/1109 variables, 0/500 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 0/1109 variables, 0/500 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 1109/1109 variables, and 500 constraints, problems are : Problem set: 0 solved, 1 unsolved in 338 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 421/421 constraints, ReadFeed: 75/75 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 638ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 2821 ms.
Support contains 1 out of 421 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 421/421 places, 1218/1218 transitions.
Applied a total of 0 rules in 44 ms. Remains 421 /421 variables (removed 0) and now considering 1218/1218 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 44 ms. Remains : 421/421 places, 1218/1218 transitions.
RANDOM walk for 40000 steps (8 resets) in 175 ms. (227 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (8 resets) in 35 ms. (1111 steps per ms) remains 1/1 properties
SDD proceeding with computation,1 properties remain. new max is 32
SDD size :1.24464e+06 after 3.74714e+10
Interrupted probabilistic random walk after 542885 steps, run timeout after 3001 ms. (steps per millisecond=180 ) properties seen :0 out of 1
Probabilistic random walk after 542885 steps, saw 332890 distinct states, run finished after 3001 ms. (steps per millisecond=180 ) properties seen :0
[2026-05-25 11:28:15] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
[2026-05-25 11:28:15] [INFO ] Invariant cache hit.
[2026-05-25 11:28:15] [INFO ] State equation strengthened by 75 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) 6/9 variables, 2/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/9 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 10/19 variables, 4/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/19 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 352/371 variables, 8/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/371 variables, 1/16 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/371 variables, 0/16 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 7/378 variables, 2/18 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/378 variables, 3/21 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/378 variables, 0/21 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 604/982 variables, 337/358 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/982 variables, 74/432 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 15 (INCLUDED_ONLY) 0/982 variables, 0/432 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 62/1044 variables, 1/433 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/1044 variables, 0/433 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 65/1109 variables, 66/499 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/1109 variables, 0/499 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (OVERLAPS) 0/1109 variables, 0/499 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 1109/1109 variables, and 499 constraints, problems are : Problem set: 0 solved, 1 unsolved in 293 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 421/421 constraints, ReadFeed: 75/75 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) 6/9 variables, 2/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/9 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 10/19 variables, 4/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/19 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 352/371 variables, 8/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/371 variables, 1/16 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/371 variables, 1/17 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/371 variables, 0/17 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 7/378 variables, 2/19 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/378 variables, 3/22 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/378 variables, 0/22 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 604/982 variables, 337/359 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/982 variables, 74/433 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/982 variables, 0/433 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 62/1044 variables, 1/434 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/1044 variables, 0/434 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 65/1109 variables, 66/500 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/1109 variables, 0/500 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 0/1109 variables, 0/500 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 1109/1109 variables, and 500 constraints, problems are : Problem set: 0 solved, 1 unsolved in 339 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 421/421 constraints, ReadFeed: 75/75 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 640ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 2874 ms.
Support contains 1 out of 421 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 421/421 places, 1218/1218 transitions.
Applied a total of 0 rules in 48 ms. Remains 421 /421 variables (removed 0) and now considering 1218/1218 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 49 ms. Remains : 421/421 places, 1218/1218 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 421/421 places, 1218/1218 transitions.
Applied a total of 0 rules in 52 ms. Remains 421 /421 variables (removed 0) and now considering 1218/1218 (removed 0) transitions.
[2026-05-25 11:28:18] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
[2026-05-25 11:28:18] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 11:28:19] [INFO ] Implicit Places using invariants in 264 ms returned []
[2026-05-25 11:28:19] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
[2026-05-25 11:28:19] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 11:28:19] [INFO ] State equation strengthened by 75 read => feed constraints.
[2026-05-25 11:28:21] [INFO ] Implicit Places using invariants and state equation in 2474 ms returned []
Implicit Place search using SMT with State Equation took 2739 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-25 11:28:21] [INFO ] Redundant transitions in 28 ms returned []
Running 1216 sub problems to find dead transitions.
[2026-05-25 11:28:21] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
[2026-05-25 11:28:21] [INFO ] Invariant cache hit.
[2026-05-25 11:28:21] [INFO ] State equation strengthened by 75 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/421 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 11:28:36] [INFO ] Deduced a trap composed of 131 places in 110 ms of which 4 ms to minimize.
SDD proceeding with computation,1 properties remain. new max is 64
SDD size :3.74714e+10 after 5.80652e+17
At refinement iteration 1 (INCLUDED_ONLY) 0/421 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 421/1109 variables, and 4 constraints, problems are : Problem set: 0 solved, 1216 unsolved in 30022 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/421 constraints, ReadFeed: 0/75 constraints, PredecessorRefiner: 1216/1216 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1216 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/421 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/421 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
Detected timeout of ITS tools.
[2026-05-25 11:28:55] [INFO ] Flatten gal took : 23 ms
[2026-05-25 11:28:55] [INFO ] Applying decomposition
[2026-05-25 11:28:55] [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/graph4236473579994296095.txt' '-o' '/tmp/graph4236473579994296095.bin' '-w' '/tmp/graph4236473579994296095.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/louvain-linux64' '/tmp/graph4236473579994296095.bin' '-l' '-1' '-v' '-w' '/tmp/graph4236473579994296095.weights' '-q' '0' '-e' '0.001'
[2026-05-25 11:28:55] [INFO ] Decomposing Gal with order
[2026-05-25 11:28:55] [INFO ] Rewriting arrays to variables to allow decomposition.
[2026-05-25 11:28:55] [INFO ] Removed a total of 2082 redundant transitions.
[2026-05-25 11:28:55] [INFO ] Flatten gal took : 46 ms
[2026-05-25 11:28:55] [INFO ] Fuse similar labels procedure discarded/fused a total of 826 labels/synchronizations in 20 ms.
[2026-05-25 11:28:55] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality5896326031154309133.gal : 5 ms
[2026-05-25 11:28:55] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality18173503239196596832.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/ReachabilityCardinality5896326031154309133.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality18173503239196596832.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/ReachabilityCardinality18173503239196596832.prop.
At refinement iteration 2 (INCLUDED_ONLY) 0/421 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
At refinement iteration 3 (OVERLAPS) 688/1109 variables, 421/425 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1109 variables, 75/500 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/1109 variables, 1216/1716 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1109/1109 variables, and 1716 constraints, problems are : Problem set: 0 solved, 1216 unsolved in 30033 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 421/421 constraints, ReadFeed: 75/75 constraints, PredecessorRefiner: 1216/1216 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 61923ms problems are : Problem set: 0 solved, 1216 unsolved
Search for dead transitions found 0 dead transitions in 61925ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 64751 ms. Remains : 421/421 places, 1218/1218 transitions.
Attempting over-approximation, by ignoring read arcs.
Ensure Unique test removed 530 transitions
Reduce isomorphic transitions removed 530 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 10 transitions
Trivial Post-agglo rules discarded 10 transitions
Performed 10 trivial Post agglomeration. Transition count delta: 10
Iterating post reduction 0 with 540 rules applied. Total rules applied 540 place count 421 transition count 678
Reduce places removed 10 places and 0 transitions.
Iterating post reduction 1 with 10 rules applied. Total rules applied 550 place count 411 transition count 678
Performed 73 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 73 Pre rules applied. Total rules applied 550 place count 411 transition count 605
Deduced a syphon composed of 73 places in 0 ms
Reduce places removed 73 places and 0 transitions.
Iterating global reduction 2 with 146 rules applied. Total rules applied 696 place count 338 transition count 605
Performed 127 Post agglomeration using F-continuation condition.Transition count delta: 127
Deduced a syphon composed of 127 places in 0 ms
Reduce places removed 127 places and 0 transitions.
Iterating global reduction 2 with 254 rules applied. Total rules applied 950 place count 211 transition count 478
Discarding 64 places :
Symmetric choice reduction at 2 with 64 rule applications. Total rules 1014 place count 147 transition count 350
Iterating global reduction 2 with 64 rules applied. Total rules applied 1078 place count 147 transition count 350
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 2 with 1 rules applied. Total rules applied 1079 place count 147 transition count 349
Discarding 63 places :
Symmetric choice reduction at 3 with 63 rule applications. Total rules 1142 place count 84 transition count 223
Iterating global reduction 3 with 63 rules applied. Total rules applied 1205 place count 84 transition count 223
Discarding 63 places :
Symmetric choice reduction at 3 with 63 rule applications. Total rules 1268 place count 21 transition count 97
Iterating global reduction 3 with 63 rules applied. Total rules applied 1331 place count 21 transition count 97
Ensure Unique test removed 63 transitions
Reduce isomorphic transitions removed 63 transitions.
Iterating post reduction 3 with 63 rules applied. Total rules applied 1394 place count 21 transition count 34
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 4 with 1 Pre rules applied. Total rules applied 1394 place count 21 transition count 33
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 1396 place count 20 transition count 33
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 4 with 2 rules applied. Total rules applied 1398 place count 19 transition count 32
Drop transitions (Redundant composition of simpler transitions.) removed 1 transitions
Redundant transition composition rules discarded 1 transitions
Iterating global reduction 4 with 1 rules applied. Total rules applied 1399 place count 19 transition count 31
Applied a total of 1399 rules in 22 ms. Remains 19 /421 variables (removed 402) and now considering 31/1218 (removed 1187) transitions.
Running SMT prover for 1 properties.
// Phase 1: matrix 31 rows 19 cols
[2026-05-25 11:29:23] [INFO ] Computed 3 invariants in 1 ms
Starting Z3 with timeout 450.0 s and query timeout 45000.0 ms
[2026-05-25 11:29:23] [INFO ] [Real]Absence check using 3 positive place invariants in 1 ms returned sat
[2026-05-25 11:29:23] [INFO ] After 9ms SMT Verify possible using state equation in real domain returned unsat :0 sat :1
[2026-05-25 11:29:23] [INFO ] State equation strengthened by 2 read => feed constraints.
[2026-05-25 11:29:23] [INFO ] After 2ms SMT Verify possible using 2 Read/Feed constraints in real domain returned unsat :0 sat :0 real:1
[2026-05-25 11:29:23] [INFO ] After 43ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
Starting Z3 with timeout 450.0 s and query timeout 45000.0 ms
[2026-05-25 11:29:23] [INFO ] [Nat]Absence check using 3 positive place invariants in 0 ms returned sat
[2026-05-25 11:29:23] [INFO ] After 7ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
[2026-05-25 11:29:23] [INFO ] After 2ms SMT Verify possible using 2 Read/Feed constraints in natural domain returned unsat :0 sat :1
TRAPS : Iteration 0
[2026-05-25 11:29:23] [INFO ] After 4ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
[2026-05-25 11:29:23] [INFO ] After 28ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
[2026-05-25 11:29:23] [INFO ] Flatten gal took : 1 ms
[2026-05-25 11:29:23] [INFO ] Flatten gal took : 1 ms
[2026-05-25 11:29:23] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality15598850119790614570.gal : 0 ms
[2026-05-25 11:29:23] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality17691670354000326662.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/ReachabilityCardinality15598850119790614570.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality17691670354000326662.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...330
Loading property file /tmp/ReachabilityCardinality17691670354000326662.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.
[2026-05-25 11:29:38] [INFO ] Flatten gal took : 1 ms
[2026-05-25 11:29:38] [INFO ] Applying decomposition
[2026-05-25 11:29:38] [INFO ] Flatten gal took : 0 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/graph15053184860702520720.txt' '-o' '/tmp/graph15053184860702520720.bin' '-w' '/tmp/graph15053184860702520720.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/louvain-linux64' '/tmp/graph15053184860702520720.bin' '-l' '-1' '-v' '-w' '/tmp/graph15053184860702520720.weights' '-q' '0' '-e' '0.001'
[2026-05-25 11:29:38] [INFO ] Decomposing Gal with order
[2026-05-25 11:29:38] [INFO ] Rewriting arrays to variables to allow decomposition.
[2026-05-25 11:29:38] [INFO ] Removed a total of 30 redundant transitions.
[2026-05-25 11:29:38] [INFO ] Flatten gal took : 1 ms
[2026-05-25 11:29:38] [INFO ] Fuse similar labels procedure discarded/fused a total of 2 labels/synchronizations in 0 ms.
[2026-05-25 11:29:38] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality1466693342442606382.gal : 0 ms
[2026-05-25 11:29:38] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality9105377472399750529.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/ReachabilityCardinality1466693342442606382.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality9105377472399750529.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/ReachabilityCardinality9105377472399750529.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.
Detected timeout of ITS tools.
Over-approximation ignoring read arcs solved 0 properties in 30176 ms.
Current structural bounds on expressions (After reachability solving 0 queries.) : Max Seen:[444] Max Struct:[+inf]
Ending property specific reduction for FunctionPointer-PT-c064-UpperBounds-08 in 250852 ms.
Starting property specific reduction for FunctionPointer-PT-c064-UpperBounds-10
Current structural bounds on expressions (Initially) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (Adding known information on max bounds.) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (Before main loop) : Max Seen:[0] Max Struct:[+inf]
[2026-05-25 11:29:53] [INFO ] Flow matrix only has 733 transitions (discarded 547 similar events)
// Phase 1: matrix 733 rows 448 cols
[2026-05-25 11:29:53] [INFO ] Computed 3 invariants in 9 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[+inf]
RANDOM walk for 10000 steps (2 resets) in 28 ms. (344 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]
[2026-05-25 11:29:53] [INFO ] Flow matrix only has 733 transitions (discarded 547 similar events)
[2026-05-25 11:29:53] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 11:29:53] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 11:29:53] [INFO ] [Real]Absence check using state equation in 129 ms returned sat
[2026-05-25 11:29:53] [INFO ] State equation strengthened by 86 read => feed constraints.
[2026-05-25 11:29:53] [INFO ] [Real]Added 86 Read/Feed constraints in 18 ms returned sat
[2026-05-25 11:29:53] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 11:29:53] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 11:29:54] [INFO ] [Nat]Absence check using state equation in 131 ms returned sat
[2026-05-25 11:29:54] [INFO ] [Nat]Added 86 Read/Feed constraints in 19 ms returned sat
[2026-05-25 11:29:54] [INFO ] Computed and/alt/rep : 345/2340/345 causal constraints (skipped 386 transitions) in 73 ms.
[2026-05-25 11:29:54] [INFO ] Added : 26 causal constraints over 7 iterations in 392 ms. Result :sat
Minimization took 249 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:[0] Max Struct:[+inf]
Support contains 1 out of 448 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 448/448 places, 1280/1280 transitions.
Discarding 4 places :
Symmetric choice reduction at 0 with 4 rule applications. Total rules 4 place count 444 transition count 1272
Iterating global reduction 0 with 4 rules applied. Total rules applied 8 place count 444 transition count 1272
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 0 with 2 rules applied. Total rules applied 10 place count 444 transition count 1270
Discarding 4 places :
Symmetric choice reduction at 1 with 4 rule applications. Total rules 14 place count 440 transition count 1258
Iterating global reduction 1 with 4 rules applied. Total rules applied 18 place count 440 transition count 1258
Discarding 3 places :
Symmetric choice reduction at 1 with 3 rule applications. Total rules 21 place count 437 transition count 1250
Iterating global reduction 1 with 3 rules applied. Total rules applied 24 place count 437 transition count 1250
Discarding 3 places :
Symmetric choice reduction at 1 with 3 rule applications. Total rules 27 place count 434 transition count 1244
Iterating global reduction 1 with 3 rules applied. Total rules applied 30 place count 434 transition count 1244
Discarding 3 places :
Symmetric choice reduction at 1 with 3 rule applications. Total rules 33 place count 431 transition count 1238
Iterating global reduction 1 with 3 rules applied. Total rules applied 36 place count 431 transition count 1238
Discarding 3 places :
Symmetric choice reduction at 1 with 3 rule applications. Total rules 39 place count 428 transition count 1232
Iterating global reduction 1 with 3 rules applied. Total rules applied 42 place count 428 transition count 1232
Discarding 3 places :
Symmetric choice reduction at 1 with 3 rule applications. Total rules 45 place count 425 transition count 1226
Iterating global reduction 1 with 3 rules applied. Total rules applied 48 place count 425 transition count 1226
Discarding 3 places :
Symmetric choice reduction at 1 with 3 rule applications. Total rules 51 place count 422 transition count 1220
Iterating global reduction 1 with 3 rules applied. Total rules applied 54 place count 422 transition count 1220
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 55 place count 421 transition count 1218
Iterating global reduction 1 with 1 rules applied. Total rules applied 56 place count 421 transition count 1218
Applied a total of 56 rules in 121 ms. Remains 421 /448 variables (removed 27) and now considering 1218/1280 (removed 62) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 121 ms. Remains : 421/448 places, 1218/1280 transitions.
[2026-05-25 11:29:54] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {233=1, 324=1, 522=1, 683=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {252=1, 343=1, 541=1, 684=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 1) seen :[5]
Current structural bounds on expressions (after cover walk) : Max Seen:[5] Max Struct:[+inf]
[2026-05-25 11:29:55] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
// Phase 1: matrix 688 rows 421 cols
[2026-05-25 11:29:55] [INFO ] Computed 3 invariants in 7 ms
Current structural bounds on expressions (after invariants) : Max Seen:[5] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 2428 ms. (411 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 1219 ms. (819 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[445] Max Struct:[+inf]
[2026-05-25 11:29:58] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
[2026-05-25 11:29:58] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:29:58] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 11:29:59] [INFO ] [Real]Absence check using state equation in 122 ms returned sat
[2026-05-25 11:29:59] [INFO ] State equation strengthened by 75 read => feed constraints.
[2026-05-25 11:29:59] [INFO ] [Real]Added 75 Read/Feed constraints in 44 ms returned sat
[2026-05-25 11:29:59] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:29:59] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 11:29:59] [INFO ] [Nat]Absence check using state equation in 123 ms returned sat
[2026-05-25 11:29:59] [INFO ] [Nat]Added 75 Read/Feed constraints in 36 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 11:29:59] [INFO ] Deduced a trap composed of 70 places in 224 ms of which 24 ms to minimize.
[2026-05-25 11:29:59] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 277 ms
[2026-05-25 11:29:59] [INFO ] Computed and/alt/rep : 332/1248/332 causal constraints (skipped 354 transitions) in 69 ms.
[2026-05-25 11:30:00] [INFO ] Added : 9 causal constraints over 3 iterations in 307 ms. Result :sat
Minimization took 211 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[445] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[445] Max Struct:[+inf]
Support contains 1 out of 421 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 421/421 places, 1218/1218 transitions.
Applied a total of 0 rules in 43 ms. Remains 421 /421 variables (removed 0) and now considering 1218/1218 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 43 ms. Remains : 421/421 places, 1218/1218 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 421/421 places, 1218/1218 transitions.
Applied a total of 0 rules in 42 ms. Remains 421 /421 variables (removed 0) and now considering 1218/1218 (removed 0) transitions.
[2026-05-25 11:30:00] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
[2026-05-25 11:30:00] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 11:30:00] [INFO ] Implicit Places using invariants in 268 ms returned []
[2026-05-25 11:30:00] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
[2026-05-25 11:30:00] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 11:30:00] [INFO ] State equation strengthened by 75 read => feed constraints.
[2026-05-25 11:30:02] [INFO ] Implicit Places using invariants and state equation in 1936 ms returned []
Implicit Place search using SMT with State Equation took 2205 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-25 11:30:02] [INFO ] Redundant transitions in 30 ms returned []
Running 1216 sub problems to find dead transitions.
[2026-05-25 11:30:02] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
[2026-05-25 11:30:02] [INFO ] Invariant cache hit.
[2026-05-25 11:30:02] [INFO ] State equation strengthened by 75 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/421 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 11:30:17] [INFO ] Deduced a trap composed of 131 places in 125 ms of which 4 ms to minimize.
At refinement iteration 1 (INCLUDED_ONLY) 0/421 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 421/1109 variables, and 4 constraints, problems are : Problem set: 0 solved, 1216 unsolved in 30024 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/421 constraints, ReadFeed: 0/75 constraints, PredecessorRefiner: 1216/1216 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1216 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/421 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/421 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/421 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
At refinement iteration 3 (OVERLAPS) 688/1109 variables, 421/425 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1109 variables, 75/500 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/1109 variables, 1216/1716 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1109/1109 variables, and 1716 constraints, problems are : Problem set: 0 solved, 1216 unsolved in 30030 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 421/421 constraints, ReadFeed: 75/75 constraints, PredecessorRefiner: 1216/1216 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 61693ms problems are : Problem set: 0 solved, 1216 unsolved
Search for dead transitions found 0 dead transitions in 61695ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 63984 ms. Remains : 421/421 places, 1218/1218 transitions.
[2026-05-25 11:31:04] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {233=1, 324=1, 522=1, 683=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {252=1, 343=1, 541=1, 684=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 1) seen :[2]
Current structural bounds on expressions (after cover walk) : Max Seen:[445] Max Struct:[+inf]
[2026-05-25 11:31:04] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
[2026-05-25 11:31:04] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[445] Max Struct:[+inf]
RANDOM walk for 1000004 steps (2 resets) in 2569 ms. (389 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 1244 ms. (803 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[445] Max Struct:[+inf]
[2026-05-25 11:31:08] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
[2026-05-25 11:31:08] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:31:08] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 11:31:08] [INFO ] [Real]Absence check using state equation in 128 ms returned sat
[2026-05-25 11:31:08] [INFO ] State equation strengthened by 75 read => feed constraints.
[2026-05-25 11:31:08] [INFO ] [Real]Added 75 Read/Feed constraints in 47 ms returned sat
[2026-05-25 11:31:08] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:31:08] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 11:31:08] [INFO ] [Nat]Absence check using state equation in 119 ms returned sat
[2026-05-25 11:31:08] [INFO ] [Nat]Added 75 Read/Feed constraints in 37 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 11:31:09] [INFO ] Deduced a trap composed of 70 places in 205 ms of which 23 ms to minimize.
[2026-05-25 11:31:09] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 244 ms
[2026-05-25 11:31:09] [INFO ] Computed and/alt/rep : 332/1248/332 causal constraints (skipped 354 transitions) in 78 ms.
[2026-05-25 11:31:09] [INFO ] Added : 9 causal constraints over 3 iterations in 338 ms. Result :sat
Minimization took 230 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[445] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[445] Max Struct:[+inf]
Support contains 1 out of 421 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 421/421 places, 1218/1218 transitions.
Applied a total of 0 rules in 43 ms. Remains 421 /421 variables (removed 0) and now considering 1218/1218 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 43 ms. Remains : 421/421 places, 1218/1218 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 421/421 places, 1218/1218 transitions.
Applied a total of 0 rules in 46 ms. Remains 421 /421 variables (removed 0) and now considering 1218/1218 (removed 0) transitions.
[2026-05-25 11:31:09] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
[2026-05-25 11:31:09] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 11:31:10] [INFO ] Implicit Places using invariants in 276 ms returned []
[2026-05-25 11:31:10] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
[2026-05-25 11:31:10] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 11:31:10] [INFO ] State equation strengthened by 75 read => feed constraints.
[2026-05-25 11:31:12] [INFO ] Implicit Places using invariants and state equation in 2030 ms returned []
Implicit Place search using SMT with State Equation took 2312 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-25 11:31:12] [INFO ] Redundant transitions in 31 ms returned []
Running 1216 sub problems to find dead transitions.
[2026-05-25 11:31:12] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
[2026-05-25 11:31:12] [INFO ] Invariant cache hit.
[2026-05-25 11:31:12] [INFO ] State equation strengthened by 75 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/421 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 11:31:27] [INFO ] Deduced a trap composed of 131 places in 118 ms of which 5 ms to minimize.
At refinement iteration 1 (INCLUDED_ONLY) 0/421 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 421/1109 variables, and 4 constraints, problems are : Problem set: 0 solved, 1216 unsolved in 30021 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/421 constraints, ReadFeed: 0/75 constraints, PredecessorRefiner: 1216/1216 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1216 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/421 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/421 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/421 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
At refinement iteration 3 (OVERLAPS) 688/1109 variables, 421/425 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1109 variables, 75/500 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/1109 variables, 1216/1716 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1109/1109 variables, and 1716 constraints, problems are : Problem set: 0 solved, 1216 unsolved in 30043 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 421/421 constraints, ReadFeed: 75/75 constraints, PredecessorRefiner: 1216/1216 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 61982ms problems are : Problem set: 0 solved, 1216 unsolved
Search for dead transitions found 0 dead transitions in 61984ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 64382 ms. Remains : 421/421 places, 1218/1218 transitions.
[2026-05-25 11:32:14] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {233=1, 324=1, 522=1, 683=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {252=1, 343=1, 541=1, 684=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 136 ms. (steps per millisecond=73 ) properties (out of 1) seen :[1]
Current structural bounds on expressions (after cover walk) : Max Seen:[445] Max Struct:[+inf]
RANDOM walk for 40000 steps (8 resets) in 150 ms. (264 steps per ms) remains 1/1 properties
[2026-05-25 11:32:14] [INFO ] Flatten gal took : 33 ms
BEST_FIRST walk for 40004 steps (8 resets) in 50 ms. (784 steps per ms) remains 1/1 properties
[2026-05-25 11:32:14] [INFO ] Flatten gal took : 23 ms
[2026-05-25 11:32:14] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality10330189551754049431.gal : 4 ms
[2026-05-25 11:32:14] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality2511257125242513079.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/ReachabilityCardinality10330189551754049431.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality2511257125242513079.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/ReachabilityCardinality2511257125242513079.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 1995
SDD proceeding with computation,1 properties remain. new max is 16
SDD size :1995 after 1.24464e+06
Interrupted probabilistic random walk after 511147 steps, run timeout after 3001 ms. (steps per millisecond=170 ) properties seen :0 out of 1
Probabilistic random walk after 511147 steps, saw 313430 distinct states, run finished after 3001 ms. (steps per millisecond=170 ) properties seen :0
[2026-05-25 11:32:17] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
[2026-05-25 11:32:17] [INFO ] Invariant cache hit.
[2026-05-25 11:32:17] [INFO ] State equation strengthened by 75 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) 6/9 variables, 2/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/9 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 10/19 variables, 4/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/19 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 352/371 variables, 8/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/371 variables, 1/16 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/371 variables, 0/16 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 7/378 variables, 2/18 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/378 variables, 3/21 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/378 variables, 0/21 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 604/982 variables, 337/358 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/982 variables, 74/432 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 15 (INCLUDED_ONLY) 0/982 variables, 0/432 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 62/1044 variables, 1/433 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/1044 variables, 0/433 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 65/1109 variables, 66/499 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/1109 variables, 0/499 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (OVERLAPS) 0/1109 variables, 0/499 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 1109/1109 variables, and 499 constraints, problems are : Problem set: 0 solved, 1 unsolved in 339 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 421/421 constraints, ReadFeed: 75/75 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) 6/9 variables, 2/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/9 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 10/19 variables, 4/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/19 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 352/371 variables, 8/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/371 variables, 1/16 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/371 variables, 1/17 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/371 variables, 0/17 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 7/378 variables, 2/19 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/378 variables, 3/22 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/378 variables, 0/22 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 604/982 variables, 337/359 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/982 variables, 74/433 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/982 variables, 0/433 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 62/1044 variables, 1/434 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/1044 variables, 0/434 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 65/1109 variables, 66/500 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/1109 variables, 0/500 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 11:32:18] [INFO ] Deduced a trap along path composed of 3 places in 26 ms of which 0 ms to minimize.
At refinement iteration 21 (OVERLAPS) 0/1109 variables, 1/501 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/1109 variables, 0/501 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 0/1109 variables, 0/501 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 1109/1109 variables, and 501 constraints, problems are : Problem set: 0 solved, 1 unsolved in 511 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 421/421 constraints, ReadFeed: 75/75 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 1/1 constraints]
After SMT, in 868ms problems are : Problem set: 0 solved, 1 unsolved
SDD proceeding with computation,1 properties remain. new max is 32
SDD size :1.24464e+06 after 3.74714e+10
Parikh walk visited 0 properties in 2877 ms.
Support contains 1 out of 421 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 421/421 places, 1218/1218 transitions.
Applied a total of 0 rules in 43 ms. Remains 421 /421 variables (removed 0) and now considering 1218/1218 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 43 ms. Remains : 421/421 places, 1218/1218 transitions.
RANDOM walk for 40001 steps (8 resets) in 158 ms. (251 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (8 resets) in 34 ms. (1142 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 515477 steps, run timeout after 3001 ms. (steps per millisecond=171 ) properties seen :0 out of 1
Probabilistic random walk after 515477 steps, saw 316085 distinct states, run finished after 3001 ms. (steps per millisecond=171 ) properties seen :0
[2026-05-25 11:32:24] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
[2026-05-25 11:32:24] [INFO ] Invariant cache hit.
[2026-05-25 11:32:24] [INFO ] State equation strengthened by 75 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) 6/9 variables, 2/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/9 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 10/19 variables, 4/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/19 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 352/371 variables, 8/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/371 variables, 1/16 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/371 variables, 0/16 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 7/378 variables, 2/18 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/378 variables, 3/21 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/378 variables, 0/21 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 604/982 variables, 337/358 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/982 variables, 74/432 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 15 (INCLUDED_ONLY) 0/982 variables, 0/432 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 62/1044 variables, 1/433 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/1044 variables, 0/433 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 65/1109 variables, 66/499 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/1109 variables, 0/499 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (OVERLAPS) 0/1109 variables, 0/499 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 1109/1109 variables, and 499 constraints, problems are : Problem set: 0 solved, 1 unsolved in 314 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 421/421 constraints, ReadFeed: 75/75 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) 6/9 variables, 2/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/9 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 10/19 variables, 4/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/19 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 352/371 variables, 8/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/371 variables, 1/16 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/371 variables, 1/17 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/371 variables, 0/17 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 7/378 variables, 2/19 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/378 variables, 3/22 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/378 variables, 0/22 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 604/982 variables, 337/359 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/982 variables, 74/433 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/982 variables, 0/433 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 62/1044 variables, 1/434 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/1044 variables, 0/434 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 65/1109 variables, 66/500 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/1109 variables, 0/500 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 11:32:25] [INFO ] Deduced a trap along path composed of 3 places in 29 ms of which 0 ms to minimize.
At refinement iteration 21 (OVERLAPS) 0/1109 variables, 1/501 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/1109 variables, 0/501 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 0/1109 variables, 0/501 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 1109/1109 variables, and 501 constraints, problems are : Problem set: 0 solved, 1 unsolved in 499 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 421/421 constraints, ReadFeed: 75/75 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 1/1 constraints]
After SMT, in 821ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 3156 ms.
Support contains 1 out of 421 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 421/421 places, 1218/1218 transitions.
Applied a total of 0 rules in 56 ms. Remains 421 /421 variables (removed 0) and now considering 1218/1218 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 56 ms. Remains : 421/421 places, 1218/1218 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 421/421 places, 1218/1218 transitions.
Applied a total of 0 rules in 68 ms. Remains 421 /421 variables (removed 0) and now considering 1218/1218 (removed 0) transitions.
[2026-05-25 11:32:28] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
[2026-05-25 11:32:28] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 11:32:28] [INFO ] Implicit Places using invariants in 274 ms returned []
[2026-05-25 11:32:28] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
[2026-05-25 11:32:28] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 11:32:29] [INFO ] State equation strengthened by 75 read => feed constraints.
[2026-05-25 11:32:30] [INFO ] Implicit Places using invariants and state equation in 1969 ms returned []
Implicit Place search using SMT with State Equation took 2244 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-25 11:32:30] [INFO ] Redundant transitions in 31 ms returned []
Running 1216 sub problems to find dead transitions.
[2026-05-25 11:32:30] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
[2026-05-25 11:32:30] [INFO ] Invariant cache hit.
[2026-05-25 11:32:30] [INFO ] State equation strengthened by 75 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/421 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
SDD proceeding with computation,1 properties remain. new max is 64
SDD size :3.74714e+10 after 5.80652e+17
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 11:32:46] [INFO ] Deduced a trap composed of 131 places in 122 ms of which 5 ms to minimize.
At refinement iteration 1 (INCLUDED_ONLY) 0/421 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 421/1109 variables, and 4 constraints, problems are : Problem set: 0 solved, 1216 unsolved in 30025 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/421 constraints, ReadFeed: 0/75 constraints, PredecessorRefiner: 1216/1216 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1216 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/421 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/421 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
Detected timeout of ITS tools.
[2026-05-25 11:33:04] [INFO ] Flatten gal took : 23 ms
[2026-05-25 11:33:04] [INFO ] Applying decomposition
[2026-05-25 11:33:04] [INFO ] Flatten gal took : 23 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/graph5160756293903542846.txt' '-o' '/tmp/graph5160756293903542846.bin' '-w' '/tmp/graph5160756293903542846.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/louvain-linux64' '/tmp/graph5160756293903542846.bin' '-l' '-1' '-v' '-w' '/tmp/graph5160756293903542846.weights' '-q' '0' '-e' '0.001'
[2026-05-25 11:33:04] [INFO ] Decomposing Gal with order
[2026-05-25 11:33:04] [INFO ] Rewriting arrays to variables to allow decomposition.
[2026-05-25 11:33:04] [INFO ] Removed a total of 2081 redundant transitions.
[2026-05-25 11:33:04] [INFO ] Flatten gal took : 46 ms
[2026-05-25 11:33:04] [INFO ] Fuse similar labels procedure discarded/fused a total of 851 labels/synchronizations in 20 ms.
[2026-05-25 11:33:04] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality10566116322930127736.gal : 5 ms
[2026-05-25 11:33:04] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality5120596218192201371.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/ReachabilityCardinality10566116322930127736.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality5120596218192201371.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/ReachabilityCardinality5120596218192201371.prop.
At refinement iteration 2 (INCLUDED_ONLY) 0/421 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
At refinement iteration 3 (OVERLAPS) 688/1109 variables, 421/425 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1109 variables, 75/500 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/1109 variables, 1216/1716 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1109/1109 variables, and 1716 constraints, problems are : Problem set: 0 solved, 1216 unsolved in 30042 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 421/421 constraints, ReadFeed: 75/75 constraints, PredecessorRefiner: 1216/1216 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 62055ms problems are : Problem set: 0 solved, 1216 unsolved
Search for dead transitions found 0 dead transitions in 62057ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 64407 ms. Remains : 421/421 places, 1218/1218 transitions.
Attempting over-approximation, by ignoring read arcs.
Ensure Unique test removed 530 transitions
Reduce isomorphic transitions removed 530 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 10 transitions
Trivial Post-agglo rules discarded 10 transitions
Performed 10 trivial Post agglomeration. Transition count delta: 10
Iterating post reduction 0 with 540 rules applied. Total rules applied 540 place count 421 transition count 678
Reduce places removed 10 places and 0 transitions.
Iterating post reduction 1 with 10 rules applied. Total rules applied 550 place count 411 transition count 678
Performed 73 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 73 Pre rules applied. Total rules applied 550 place count 411 transition count 605
Deduced a syphon composed of 73 places in 0 ms
Reduce places removed 73 places and 0 transitions.
Iterating global reduction 2 with 146 rules applied. Total rules applied 696 place count 338 transition count 605
Performed 127 Post agglomeration using F-continuation condition.Transition count delta: 127
Deduced a syphon composed of 127 places in 0 ms
Reduce places removed 127 places and 0 transitions.
Iterating global reduction 2 with 254 rules applied. Total rules applied 950 place count 211 transition count 478
Discarding 64 places :
Symmetric choice reduction at 2 with 64 rule applications. Total rules 1014 place count 147 transition count 350
Iterating global reduction 2 with 64 rules applied. Total rules applied 1078 place count 147 transition count 350
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 2 with 1 rules applied. Total rules applied 1079 place count 147 transition count 349
Discarding 63 places :
Symmetric choice reduction at 3 with 63 rule applications. Total rules 1142 place count 84 transition count 223
Iterating global reduction 3 with 63 rules applied. Total rules applied 1205 place count 84 transition count 223
Discarding 63 places :
Symmetric choice reduction at 3 with 63 rule applications. Total rules 1268 place count 21 transition count 97
Iterating global reduction 3 with 63 rules applied. Total rules applied 1331 place count 21 transition count 97
Ensure Unique test removed 63 transitions
Reduce isomorphic transitions removed 63 transitions.
Iterating post reduction 3 with 63 rules applied. Total rules applied 1394 place count 21 transition count 34
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 4 with 1 Pre rules applied. Total rules applied 1394 place count 21 transition count 33
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 1396 place count 20 transition count 33
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 4 with 2 rules applied. Total rules applied 1398 place count 19 transition count 32
Drop transitions (Redundant composition of simpler transitions.) removed 1 transitions
Redundant transition composition rules discarded 1 transitions
Iterating global reduction 4 with 1 rules applied. Total rules applied 1399 place count 19 transition count 31
Applied a total of 1399 rules in 25 ms. Remains 19 /421 variables (removed 402) and now considering 31/1218 (removed 1187) transitions.
Running SMT prover for 1 properties.
// Phase 1: matrix 31 rows 19 cols
[2026-05-25 11:33:32] [INFO ] Computed 3 invariants in 1 ms
Starting Z3 with timeout 450.0 s and query timeout 45000.0 ms
[2026-05-25 11:33:32] [INFO ] [Real]Absence check using 3 positive place invariants in 0 ms returned sat
[2026-05-25 11:33:32] [INFO ] After 8ms SMT Verify possible using state equation in real domain returned unsat :0 sat :1
[2026-05-25 11:33:32] [INFO ] State equation strengthened by 2 read => feed constraints.
[2026-05-25 11:33:32] [INFO ] After 2ms SMT Verify possible using 2 Read/Feed constraints in real domain returned unsat :0 sat :0 real:1
[2026-05-25 11:33:32] [INFO ] After 37ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
Starting Z3 with timeout 450.0 s and query timeout 45000.0 ms
[2026-05-25 11:33:32] [INFO ] [Nat]Absence check using 3 positive place invariants in 1 ms returned sat
[2026-05-25 11:33:33] [INFO ] After 7ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
[2026-05-25 11:33:33] [INFO ] After 2ms SMT Verify possible using 2 Read/Feed constraints in natural domain returned unsat :0 sat :1
TRAPS : Iteration 0
[2026-05-25 11:33:33] [INFO ] After 4ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
[2026-05-25 11:33:33] [INFO ] After 30ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
[2026-05-25 11:33:33] [INFO ] Flatten gal took : 1 ms
[2026-05-25 11:33:33] [INFO ] Flatten gal took : 1 ms
[2026-05-25 11:33:33] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality16038347333697538429.gal : 2 ms
[2026-05-25 11:33:33] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality9453728750458709035.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/ReachabilityCardinality16038347333697538429.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality9453728750458709035.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/ReachabilityCardinality9453728750458709035.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.
[2026-05-25 11:33:48] [INFO ] Flatten gal took : 2 ms
[2026-05-25 11:33:48] [INFO ] Applying decomposition
[2026-05-25 11:33:48] [INFO ] Flatten gal took : 1 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/graph4066522254842675126.txt' '-o' '/tmp/graph4066522254842675126.bin' '-w' '/tmp/graph4066522254842675126.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/louvain-linux64' '/tmp/graph4066522254842675126.bin' '-l' '-1' '-v' '-w' '/tmp/graph4066522254842675126.weights' '-q' '0' '-e' '0.001'
[2026-05-25 11:33:48] [INFO ] Decomposing Gal with order
[2026-05-25 11:33:48] [INFO ] Rewriting arrays to variables to allow decomposition.
[2026-05-25 11:33:48] [INFO ] Removed a total of 30 redundant transitions.
[2026-05-25 11:33:48] [INFO ] Flatten gal took : 1 ms
[2026-05-25 11:33:48] [INFO ] Fuse similar labels procedure discarded/fused a total of 2 labels/synchronizations in 1 ms.
[2026-05-25 11:33:48] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality479658989277093805.gal : 0 ms
[2026-05-25 11:33:48] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality8192336412653416886.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/ReachabilityCardinality479658989277093805.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality8192336412653416886.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 ...306
Loading property file /tmp/ReachabilityCardinality8192336412653416886.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.
Detected timeout of ITS tools.
Over-approximation ignoring read arcs solved 0 properties in 30176 ms.
Current structural bounds on expressions (After reachability solving 0 queries.) : Max Seen:[445] Max Struct:[+inf]
Ending property specific reduction for FunctionPointer-PT-c064-UpperBounds-10 in 249447 ms.
Starting property specific reduction for FunctionPointer-PT-c064-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]
[2026-05-25 11:34:03] [INFO ] Flow matrix only has 733 transitions (discarded 547 similar events)
// Phase 1: matrix 733 rows 448 cols
[2026-05-25 11:34:03] [INFO ] Computed 3 invariants in 5 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[+inf]
RANDOM walk for 10000 steps (2 resets) in 29 ms. (333 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]
[2026-05-25 11:34:03] [INFO ] Flow matrix only has 733 transitions (discarded 547 similar events)
[2026-05-25 11:34:03] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 11:34:03] [INFO ] [Real]Absence check using 3 positive place invariants in 12 ms returned sat
[2026-05-25 11:34:03] [INFO ] [Real]Absence check using state equation in 140 ms returned sat
[2026-05-25 11:34:03] [INFO ] State equation strengthened by 86 read => feed constraints.
[2026-05-25 11:34:03] [INFO ] [Real]Added 86 Read/Feed constraints in 32 ms returned sat
[2026-05-25 11:34:03] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 11:34:03] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 11:34:03] [INFO ] [Nat]Absence check using state equation in 135 ms returned sat
[2026-05-25 11:34:03] [INFO ] [Nat]Added 86 Read/Feed constraints in 35 ms returned sat
[2026-05-25 11:34:03] [INFO ] Computed and/alt/rep : 345/2340/345 causal constraints (skipped 386 transitions) in 76 ms.
[2026-05-25 11:34:03] [INFO ] Added : 10 causal constraints over 4 iterations in 305 ms. Result :sat
Minimization took 252 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 448 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 448/448 places, 1280/1280 transitions.
Discarding 4 places :
Symmetric choice reduction at 0 with 4 rule applications. Total rules 4 place count 444 transition count 1272
Iterating global reduction 0 with 4 rules applied. Total rules applied 8 place count 444 transition count 1272
Discarding 4 places :
Symmetric choice reduction at 0 with 4 rule applications. Total rules 12 place count 440 transition count 1258
Iterating global reduction 0 with 4 rules applied. Total rules applied 16 place count 440 transition count 1258
Discarding 4 places :
Symmetric choice reduction at 0 with 4 rule applications. Total rules 20 place count 436 transition count 1248
Iterating global reduction 0 with 4 rules applied. Total rules applied 24 place count 436 transition count 1248
Discarding 4 places :
Symmetric choice reduction at 0 with 4 rule applications. Total rules 28 place count 432 transition count 1240
Iterating global reduction 0 with 4 rules applied. Total rules applied 32 place count 432 transition count 1240
Discarding 4 places :
Symmetric choice reduction at 0 with 4 rule applications. Total rules 36 place count 428 transition count 1232
Iterating global reduction 0 with 4 rules applied. Total rules applied 40 place count 428 transition count 1232
Discarding 4 places :
Symmetric choice reduction at 0 with 4 rule applications. Total rules 44 place count 424 transition count 1224
Iterating global reduction 0 with 4 rules applied. Total rules applied 48 place count 424 transition count 1224
Discarding 4 places :
Symmetric choice reduction at 0 with 4 rule applications. Total rules 52 place count 420 transition count 1216
Iterating global reduction 0 with 4 rules applied. Total rules applied 56 place count 420 transition count 1216
Discarding 4 places :
Symmetric choice reduction at 0 with 4 rule applications. Total rules 60 place count 416 transition count 1208
Iterating global reduction 0 with 4 rules applied. Total rules applied 64 place count 416 transition count 1208
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 65 place count 415 transition count 1206
Iterating global reduction 0 with 1 rules applied. Total rules applied 66 place count 415 transition count 1206
Applied a total of 66 rules in 136 ms. Remains 415 /448 variables (removed 33) and now considering 1206/1280 (removed 74) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 136 ms. Remains : 415/448 places, 1206/1280 transitions.
[2026-05-25 11:34:04] [INFO ] Flow matrix only has 680 transitions (discarded 526 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {228=1, 256=1, 259=1, 315=1, 512=1, 675=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {252=1, 339=1, 664=1, 678=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 80 ms. (steps per millisecond=125 ) properties (out of 1) seen :[2]
Current structural bounds on expressions (after cover walk) : Max Seen:[8] Max Struct:[+inf]
[2026-05-25 11:34:04] [INFO ] Flow matrix only has 680 transitions (discarded 526 similar events)
// Phase 1: matrix 680 rows 415 cols
[2026-05-25 11:34:04] [INFO ] Computed 3 invariants in 7 ms
Current structural bounds on expressions (after invariants) : Max Seen:[8] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 2559 ms. (390 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 1253 ms. (797 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[8] Max Struct:[+inf]
[2026-05-25 11:34:08] [INFO ] Flow matrix only has 680 transitions (discarded 526 similar events)
[2026-05-25 11:34:08] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:34:08] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 11:34:08] [INFO ] [Real]Absence check using state equation in 125 ms returned sat
[2026-05-25 11:34:08] [INFO ] State equation strengthened by 74 read => feed constraints.
[2026-05-25 11:34:08] [INFO ] [Real]Added 74 Read/Feed constraints in 18 ms returned sat
[2026-05-25 11:34:08] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:34:08] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 11:34:09] [INFO ] [Nat]Absence check using state equation in 115 ms returned sat
[2026-05-25 11:34:09] [INFO ] [Nat]Added 74 Read/Feed constraints in 28 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 11:34:09] [INFO ] Deduced a trap composed of 70 places in 208 ms of which 23 ms to minimize.
[2026-05-25 11:34:09] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 250 ms
[2026-05-25 11:34:09] [INFO ] Computed and/alt/rep : 333/1252/331 causal constraints (skipped 347 transitions) in 72 ms.
[2026-05-25 11:34:09] [INFO ] Added : 7 causal constraints over 4 iterations in 270 ms. Result :sat
Minimization took 213 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 415 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 415/415 places, 1206/1206 transitions.
Applied a total of 0 rules in 42 ms. Remains 415 /415 variables (removed 0) and now considering 1206/1206 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 42 ms. Remains : 415/415 places, 1206/1206 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 415/415 places, 1206/1206 transitions.
Applied a total of 0 rules in 50 ms. Remains 415 /415 variables (removed 0) and now considering 1206/1206 (removed 0) transitions.
[2026-05-25 11:34:09] [INFO ] Flow matrix only has 680 transitions (discarded 526 similar events)
[2026-05-25 11:34:09] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 11:34:10] [INFO ] Implicit Places using invariants in 279 ms returned []
[2026-05-25 11:34:10] [INFO ] Flow matrix only has 680 transitions (discarded 526 similar events)
[2026-05-25 11:34:10] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 11:34:10] [INFO ] State equation strengthened by 74 read => feed constraints.
[2026-05-25 11:34:12] [INFO ] Implicit Places using invariants and state equation in 1899 ms returned []
Implicit Place search using SMT with State Equation took 2179 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-25 11:34:12] [INFO ] Redundant transitions in 29 ms returned []
Running 1204 sub problems to find dead transitions.
[2026-05-25 11:34:12] [INFO ] Flow matrix only has 680 transitions (discarded 526 similar events)
[2026-05-25 11:34:12] [INFO ] Invariant cache hit.
[2026-05-25 11:34:12] [INFO ] State equation strengthened by 74 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/415 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1204 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 11:34:26] [INFO ] Deduced a trap composed of 131 places in 103 ms of which 4 ms to minimize.
At refinement iteration 1 (INCLUDED_ONLY) 0/415 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1204 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 415/1095 variables, and 4 constraints, problems are : Problem set: 0 solved, 1204 unsolved in 30017 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/415 constraints, ReadFeed: 0/74 constraints, PredecessorRefiner: 1204/1204 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1204 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/415 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1204 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/415 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1204 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/415 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1204 unsolved
At refinement iteration 3 (OVERLAPS) 680/1095 variables, 415/419 constraints. Problems are: Problem set: 0 solved, 1204 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1095 variables, 74/493 constraints. Problems are: Problem set: 0 solved, 1204 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/1095 variables, 1204/1697 constraints. Problems are: Problem set: 0 solved, 1204 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1095/1095 variables, and 1697 constraints, problems are : Problem set: 0 solved, 1204 unsolved in 30034 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 415/415 constraints, ReadFeed: 74/74 constraints, PredecessorRefiner: 1204/1204 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 61849ms problems are : Problem set: 0 solved, 1204 unsolved
Search for dead transitions found 0 dead transitions in 61851ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 64120 ms. Remains : 415/415 places, 1206/1206 transitions.
[2026-05-25 11:35:14] [INFO ] Flow matrix only has 680 transitions (discarded 526 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {228=1, 256=1, 259=1, 315=1, 512=1, 675=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {252=1, 339=1, 664=1, 678=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 81 ms. (steps per millisecond=123 ) properties (out of 1) seen :[4]
Current structural bounds on expressions (after cover walk) : Max Seen:[8] Max Struct:[+inf]
RANDOM walk for 40001 steps (8 resets) in 137 ms. (289 steps per ms) remains 1/1 properties
[2026-05-25 11:35:14] [INFO ] Flatten gal took : 51 ms
BEST_FIRST walk for 40004 steps (8 resets) in 43 ms. (909 steps per ms) remains 1/1 properties
[2026-05-25 11:35:14] [INFO ] Flatten gal took : 36 ms
[2026-05-25 11:35:14] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality13221990901362848945.gal : 5 ms
[2026-05-25 11:35:14] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality12865182853537367071.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/ReachabilityCardinality13221990901362848945.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality12865182853537367071.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...330
Loading property file /tmp/ReachabilityCardinality12865182853537367071.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 1995
SDD proceeding with computation,1 properties remain. new max is 16
SDD size :1995 after 1.24464e+06
Interrupted probabilistic random walk after 535481 steps, run timeout after 3001 ms. (steps per millisecond=178 ) properties seen :0 out of 1
Probabilistic random walk after 535481 steps, saw 328349 distinct states, run finished after 3001 ms. (steps per millisecond=178 ) properties seen :0
[2026-05-25 11:35:17] [INFO ] Flow matrix only has 680 transitions (discarded 526 similar events)
[2026-05-25 11:35:17] [INFO ] Invariant cache hit.
[2026-05-25 11:35:17] [INFO ] State equation strengthened by 74 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) 344/355 variables, 8/11 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/355 variables, 1/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/355 variables, 1/13 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/355 variables, 0/13 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 3/358 variables, 1/14 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/358 variables, 1/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/358 variables, 0/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 594/952 variables, 330/345 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/952 variables, 73/418 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/952 variables, 0/418 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 15 (OVERLAPS) 62/1014 variables, 1/419 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/1014 variables, 0/419 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 67/1081 variables, 65/484 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/1081 variables, 0/484 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 8/1089 variables, 4/488 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/1089 variables, 0/488 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 6/1095 variables, 4/492 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/1095 variables, 0/492 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 0/1095 variables, 0/492 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 1095/1095 variables, and 492 constraints, problems are : Problem set: 0 solved, 1 unsolved in 306 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 415/415 constraints, ReadFeed: 74/74 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) 344/355 variables, 8/11 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/355 variables, 1/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/355 variables, 1/13 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/355 variables, 1/14 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/355 variables, 0/14 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 3/358 variables, 1/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/358 variables, 1/16 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/358 variables, 0/16 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 594/952 variables, 330/346 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/952 variables, 73/419 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/952 variables, 0/419 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 62/1014 variables, 1/420 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/1014 variables, 0/420 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 67/1081 variables, 65/485 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/1081 variables, 0/485 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (OVERLAPS) 8/1089 variables, 4/489 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/1089 variables, 0/489 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (OVERLAPS) 6/1095 variables, 4/493 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (INCLUDED_ONLY) 0/1095 variables, 0/493 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (OVERLAPS) 0/1095 variables, 0/493 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 1095/1095 variables, and 493 constraints, problems are : Problem set: 0 solved, 1 unsolved in 441 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 415/415 constraints, ReadFeed: 74/74 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 754ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 17 ms.
Support contains 1 out of 415 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 415/415 places, 1206/1206 transitions.
Applied a total of 0 rules in 42 ms. Remains 415 /415 variables (removed 0) and now considering 1206/1206 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 42 ms. Remains : 415/415 places, 1206/1206 transitions.
RANDOM walk for 40001 steps (8 resets) in 163 ms. (243 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (8 resets) in 40 ms. (975 steps per ms) remains 1/1 properties
SDD proceeding with computation,1 properties remain. new max is 32
SDD size :1.24464e+06 after 3.74714e+10
Interrupted probabilistic random walk after 534048 steps, run timeout after 3001 ms. (steps per millisecond=177 ) properties seen :0 out of 1
Probabilistic random walk after 534048 steps, saw 327471 distinct states, run finished after 3001 ms. (steps per millisecond=177 ) properties seen :0
[2026-05-25 11:35:21] [INFO ] Flow matrix only has 680 transitions (discarded 526 similar events)
[2026-05-25 11:35:21] [INFO ] Invariant cache hit.
[2026-05-25 11:35:21] [INFO ] State equation strengthened by 74 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) 344/355 variables, 8/11 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/355 variables, 1/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/355 variables, 1/13 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/355 variables, 0/13 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 3/358 variables, 1/14 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/358 variables, 1/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/358 variables, 0/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 594/952 variables, 330/345 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/952 variables, 73/418 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/952 variables, 0/418 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 15 (OVERLAPS) 62/1014 variables, 1/419 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/1014 variables, 0/419 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 67/1081 variables, 65/484 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/1081 variables, 0/484 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 8/1089 variables, 4/488 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/1089 variables, 0/488 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 6/1095 variables, 4/492 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/1095 variables, 0/492 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 0/1095 variables, 0/492 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 1095/1095 variables, and 492 constraints, problems are : Problem set: 0 solved, 1 unsolved in 315 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 415/415 constraints, ReadFeed: 74/74 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) 344/355 variables, 8/11 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/355 variables, 1/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/355 variables, 1/13 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/355 variables, 1/14 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/355 variables, 0/14 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 3/358 variables, 1/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/358 variables, 1/16 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/358 variables, 0/16 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 594/952 variables, 330/346 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/952 variables, 73/419 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/952 variables, 0/419 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 62/1014 variables, 1/420 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/1014 variables, 0/420 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 67/1081 variables, 65/485 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/1081 variables, 0/485 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (OVERLAPS) 8/1089 variables, 4/489 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/1089 variables, 0/489 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (OVERLAPS) 6/1095 variables, 4/493 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (INCLUDED_ONLY) 0/1095 variables, 0/493 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (OVERLAPS) 0/1095 variables, 0/493 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 1095/1095 variables, and 493 constraints, problems are : Problem set: 0 solved, 1 unsolved in 427 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 415/415 constraints, ReadFeed: 74/74 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 750ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 20 ms.
Support contains 1 out of 415 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 415/415 places, 1206/1206 transitions.
Applied a total of 0 rules in 42 ms. Remains 415 /415 variables (removed 0) and now considering 1206/1206 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 43 ms. Remains : 415/415 places, 1206/1206 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 415/415 places, 1206/1206 transitions.
Applied a total of 0 rules in 42 ms. Remains 415 /415 variables (removed 0) and now considering 1206/1206 (removed 0) transitions.
[2026-05-25 11:35:22] [INFO ] Flow matrix only has 680 transitions (discarded 526 similar events)
[2026-05-25 11:35:22] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 11:35:22] [INFO ] Implicit Places using invariants in 280 ms returned []
[2026-05-25 11:35:22] [INFO ] Flow matrix only has 680 transitions (discarded 526 similar events)
[2026-05-25 11:35:22] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 11:35:22] [INFO ] State equation strengthened by 74 read => feed constraints.
[2026-05-25 11:35:24] [INFO ] Implicit Places using invariants and state equation in 1955 ms returned []
Implicit Place search using SMT with State Equation took 2236 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-25 11:35:24] [INFO ] Redundant transitions in 30 ms returned []
Running 1204 sub problems to find dead transitions.
[2026-05-25 11:35:24] [INFO ] Flow matrix only has 680 transitions (discarded 526 similar events)
[2026-05-25 11:35:24] [INFO ] Invariant cache hit.
[2026-05-25 11:35:24] [INFO ] State equation strengthened by 74 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/415 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1204 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 11:35:39] [INFO ] Deduced a trap composed of 131 places in 97 ms of which 4 ms to minimize.
At refinement iteration 1 (INCLUDED_ONLY) 0/415 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1204 unsolved
SDD proceeding with computation,1 properties remain. new max is 64
SDD size :3.74714e+10 after 5.80652e+17
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 415/1095 variables, and 4 constraints, problems are : Problem set: 0 solved, 1204 unsolved in 30024 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/415 constraints, ReadFeed: 0/74 constraints, PredecessorRefiner: 1204/1204 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1204 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/415 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1204 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/415 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1204 unsolved
Detected timeout of ITS tools.
[2026-05-25 11:36:04] [INFO ] Flatten gal took : 23 ms
[2026-05-25 11:36:04] [INFO ] Applying decomposition
[2026-05-25 11:36:04] [INFO ] Flatten gal took : 23 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/graph17286734257261599435.txt' '-o' '/tmp/graph17286734257261599435.bin' '-w' '/tmp/graph17286734257261599435.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/louvain-linux64' '/tmp/graph17286734257261599435.bin' '-l' '-1' '-v' '-w' '/tmp/graph17286734257261599435.weights' '-q' '0' '-e' '0.001'
[2026-05-25 11:36:04] [INFO ] Decomposing Gal with order
[2026-05-25 11:36:04] [INFO ] Rewriting arrays to variables to allow decomposition.
[2026-05-25 11:36:04] [INFO ] Removed a total of 2063 redundant transitions.
[2026-05-25 11:36:04] [INFO ] Flatten gal took : 46 ms
[2026-05-25 11:36:04] [INFO ] Fuse similar labels procedure discarded/fused a total of 876 labels/synchronizations in 20 ms.
[2026-05-25 11:36:04] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality15320011270927693665.gal : 4 ms
[2026-05-25 11:36:04] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality12110423414364053556.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/ReachabilityCardinality15320011270927693665.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality12110423414364053556.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/ReachabilityCardinality12110423414364053556.prop.
At refinement iteration 2 (INCLUDED_ONLY) 0/415 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1204 unsolved
At refinement iteration 3 (OVERLAPS) 680/1095 variables, 415/419 constraints. Problems are: Problem set: 0 solved, 1204 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1095 variables, 74/493 constraints. Problems are: Problem set: 0 solved, 1204 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/1095 variables, 1204/1697 constraints. Problems are: Problem set: 0 solved, 1204 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1095/1095 variables, and 1697 constraints, problems are : Problem set: 0 solved, 1204 unsolved in 30039 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 415/415 constraints, ReadFeed: 74/74 constraints, PredecessorRefiner: 1204/1204 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 61949ms problems are : Problem set: 0 solved, 1204 unsolved
Search for dead transitions found 0 dead transitions in 61951ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 64267 ms. Remains : 415/415 places, 1206/1206 transitions.
Attempting over-approximation, by ignoring read arcs.
Ensure Unique test removed 526 transitions
Reduce isomorphic transitions removed 526 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 10 transitions
Trivial Post-agglo rules discarded 10 transitions
Performed 10 trivial Post agglomeration. Transition count delta: 10
Iterating post reduction 0 with 536 rules applied. Total rules applied 536 place count 415 transition count 670
Reduce places removed 10 places and 0 transitions.
Iterating post reduction 1 with 10 rules applied. Total rules applied 546 place count 405 transition count 670
Performed 67 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 67 Pre rules applied. Total rules applied 546 place count 405 transition count 603
Deduced a syphon composed of 67 places in 0 ms
Reduce places removed 67 places and 0 transitions.
Iterating global reduction 2 with 134 rules applied. Total rules applied 680 place count 338 transition count 603
Performed 129 Post agglomeration using F-continuation condition.Transition count delta: 129
Deduced a syphon composed of 129 places in 0 ms
Reduce places removed 129 places and 0 transitions.
Iterating global reduction 2 with 258 rules applied. Total rules applied 938 place count 209 transition count 474
Discarding 64 places :
Symmetric choice reduction at 2 with 64 rule applications. Total rules 1002 place count 145 transition count 346
Iterating global reduction 2 with 64 rules applied. Total rules applied 1066 place count 145 transition count 346
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 2 with 1 rules applied. Total rules applied 1067 place count 145 transition count 345
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 1 Pre rules applied. Total rules applied 1067 place count 145 transition count 344
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 1069 place count 144 transition count 344
Discarding 63 places :
Symmetric choice reduction at 3 with 63 rule applications. Total rules 1132 place count 81 transition count 218
Iterating global reduction 3 with 63 rules applied. Total rules applied 1195 place count 81 transition count 218
Discarding 63 places :
Symmetric choice reduction at 3 with 63 rule applications. Total rules 1258 place count 18 transition count 92
Iterating global reduction 3 with 63 rules applied. Total rules applied 1321 place count 18 transition count 92
Ensure Unique test removed 63 transitions
Reduce isomorphic transitions removed 63 transitions.
Iterating post reduction 3 with 63 rules applied. Total rules applied 1384 place count 18 transition count 29
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 4 with 1 Pre rules applied. Total rules applied 1384 place count 18 transition count 28
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 1386 place count 17 transition count 28
Drop transitions (Redundant composition of simpler transitions.) removed 3 transitions
Redundant transition composition rules discarded 3 transitions
Iterating global reduction 4 with 3 rules applied. Total rules applied 1389 place count 17 transition count 25
Applied a total of 1389 rules in 27 ms. Remains 17 /415 variables (removed 398) and now considering 25/1206 (removed 1181) transitions.
Running SMT prover for 1 properties.
// Phase 1: matrix 25 rows 17 cols
[2026-05-25 11:36:26] [INFO ] Computed 3 invariants in 1 ms
Starting Z3 with timeout 450.0 s and query timeout 45000.0 ms
[2026-05-25 11:36:26] [INFO ] [Real]Absence check using 3 positive place invariants in 1 ms returned sat
[2026-05-25 11:36:26] [INFO ] After 7ms SMT Verify possible using state equation in real domain returned unsat :0 sat :1
[2026-05-25 11:36:26] [INFO ] State equation strengthened by 2 read => feed constraints.
[2026-05-25 11:36:26] [INFO ] After 2ms SMT Verify possible using 2 Read/Feed constraints in real domain returned unsat :0 sat :0 real:1
[2026-05-25 11:36:26] [INFO ] After 30ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
Starting Z3 with timeout 450.0 s and query timeout 45000.0 ms
[2026-05-25 11:36:26] [INFO ] [Nat]Absence check using 3 positive place invariants in 1 ms returned sat
[2026-05-25 11:36:26] [INFO ] After 5ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
[2026-05-25 11:36:26] [INFO ] After 2ms SMT Verify possible using 2 Read/Feed constraints in natural domain returned unsat :0 sat :1
TRAPS : Iteration 0
[2026-05-25 11:36:26] [INFO ] After 4ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
[2026-05-25 11:36:26] [INFO ] After 25ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
[2026-05-25 11:36:26] [INFO ] Flatten gal took : 1 ms
[2026-05-25 11:36:26] [INFO ] Flatten gal took : 0 ms
[2026-05-25 11:36:26] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality1190653637835408651.gal : 0 ms
[2026-05-25 11:36:26] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality7534123739222026485.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/ReachabilityCardinality1190653637835408651.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality7534123739222026485.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/ReachabilityCardinality7534123739222026485.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 12482
SDD proceeding with computation,1 properties remain. new max is 256
SDD size :12482 after 287427
SDD proceeding with computation,1 properties remain. new max is 512
SDD size :287427 after 4.65965e+07
SDD proceeding with computation,1 properties remain. new max is 1024
SDD size :4.65965e+07 after 1.40496e+08
SDD proceeding with computation,1 properties remain. new max is 2048
SDD size :1.40496e+08 after 3.28112e+08
Detected timeout of ITS tools.
[2026-05-25 11:36:41] [INFO ] Flatten gal took : 1 ms
[2026-05-25 11:36:41] [INFO ] Applying decomposition
[2026-05-25 11:36:41] [INFO ] Flatten gal took : 1 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/graph7136228443491408715.txt' '-o' '/tmp/graph7136228443491408715.bin' '-w' '/tmp/graph7136228443491408715.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/louvain-linux64' '/tmp/graph7136228443491408715.bin' '-l' '-1' '-v' '-w' '/tmp/graph7136228443491408715.weights' '-q' '0' '-e' '0.001'
[2026-05-25 11:36:41] [INFO ] Decomposing Gal with order
[2026-05-25 11:36:41] [INFO ] Rewriting arrays to variables to allow decomposition.
[2026-05-25 11:36:41] [INFO ] Removed a total of 17 redundant transitions.
[2026-05-25 11:36:41] [INFO ] Flatten gal took : 1 ms
[2026-05-25 11:36:41] [INFO ] Fuse similar labels procedure discarded/fused a total of 0 labels/synchronizations in 0 ms.
[2026-05-25 11:36:41] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality6948916138118004038.gal : 1 ms
[2026-05-25 11:36:41] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality6557899160045168639.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/ReachabilityCardinality6948916138118004038.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality6557899160045168639.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/ReachabilityCardinality6557899160045168639.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 16388
SDD proceeding with computation,1 properties remain. new max is 256
SDD size :16388 after 616307
Invariant property MIN0 does not hold.
Found states matching all0 target predicate
Will report total states built up to this point. Computation was interrupted after 257 fixpoint passes
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
petri\_inst\_inst\_mod\_flat,7.20786e+09,0.153418,9484,414,577,2819,11184,77,18753,30,31867,0
Total reachable state count : 7207862085

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

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
MIN0,8.05376e+06,0.153997,9484,264,326,2819,11184,81,18753,34,31867,0
ITS tools runner thread asked to quit. Dying gracefully.
Over-approximation ignoring read arcs solved 0 properties in 15306 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:[8] Max Struct:[+inf]
Ending property specific reduction for FunctionPointer-PT-c064-UpperBounds-13 in 158794 ms.
[2026-05-25 11:36:41] [INFO ] Flatten gal took : 24 ms
[2026-05-25 11:36:41] [INFO ] Applying decomposition
[2026-05-25 11:36:41] [INFO ] Flatten gal took : 25 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/graph14696435551919314691.txt' '-o' '/tmp/graph14696435551919314691.bin' '-w' '/tmp/graph14696435551919314691.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/louvain-linux64' '/tmp/graph14696435551919314691.bin' '-l' '-1' '-v' '-w' '/tmp/graph14696435551919314691.weights' '-q' '0' '-e' '0.001'
[2026-05-25 11:36:42] [INFO ] Decomposing Gal with order
[2026-05-25 11:36:42] [INFO ] Rewriting arrays to variables to allow decomposition.
[2026-05-25 11:36:42] [INFO ] Removed a total of 2194 redundant transitions.
[2026-05-25 11:36:42] [INFO ] Flatten gal took : 46 ms
[2026-05-25 11:36:42] [INFO ] Fuse similar labels procedure discarded/fused a total of 910 labels/synchronizations in 22 ms.
[2026-05-25 11:36:42] [INFO ] Time to serialize gal into /tmp/UpperBounds8945200847936689204.gal : 5 ms
[2026-05-25 11:36:42] [INFO ] Time to serialize properties into /tmp/UpperBounds95806574655781669.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/UpperBounds8945200847936689204.gal' '-t' 'CGAL' '-reachable-file' '/tmp/UpperBounds95806574655781669.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 ...281
Loading property file /tmp/UpperBounds95806574655781669.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-c064"
export BK_EXAMINATION="UpperBounds"
export BK_TOOL="gold2025"
export BK_RESULT_DIR="/tmp/BK_RESULTS/OUTPUTS"
export BK_TIME_CONFINEMENT="3600"
export BK_MEMORY_CONFINEMENT="16384"
export BK_BIN_PATH="/home/mcc/BenchKit/bin/"

# this is specific to your benchmark or test

export BIN_DIR="$HOME/BenchKit/bin"

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

# this is for BenchKit: explicit launching of the test
echo "====================================================================="
echo " Generated by BenchKit 2-5973"
echo " Executing tool gold2025"
echo " Input is FunctionPointer-PT-c064, 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 r159-tall-177961079800020"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/FunctionPointer-PT-c064.tgz
mv FunctionPointer-PT-c064 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 ;