MCC'2026- Execution of r016-oct2-177944372800258

About the Execution of 2025-gold for ASLink-PT-09a

Execution Summary
Max Memory Used (MB)	Time wait (ms)	CPU Usage (ms)	I/O Wait (ms)	Computed Result	Execution Status
5803.852	1800000.00	4098712.00	294.60	[undef]	Time out reached

Execution Chart

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

Trace from the execution

Formatting '/data/sdalzilio/mcc2026-input.r016-oct2-177944372800258.qcow2', fmt=qcow2 cluster_size=65536 extended_l2=off compression_type=zlib size=4294967296 backing_file=/data/sdalzilio/mcc2026-input.qcow2 backing_fmt=qcow2 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 ASLink-PT-09a, examination is StableMarking
Time confinement is 1800 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r016-oct2-177944372800258
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 1.3M
-rw-r--r-- 1 mcc users 5.5K Mar 5 14:03 CTLCardinality.txt
-rw-r--r-- 1 mcc users 54K Mar 5 14:03 CTLCardinality.xml
-rw-r--r-- 1 mcc users 6.1K Mar 5 14:03 CTLFireability.txt
-rw-r--r-- 1 mcc users 57K Mar 5 14:03 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Mar 3 18:30 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 3.7K Mar 15 07:10 LTLCardinality.txt
-rw-r--r-- 1 mcc users 27K Mar 15 07:10 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.1K Mar 15 07:11 LTLFireability.txt
-rw-r--r-- 1 mcc users 16K Mar 15 07:11 LTLFireability.xml
-rw-r--r-- 1 mcc users 7.4K Mar 5 14:03 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 68K Mar 5 14:03 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 11K Mar 5 14:03 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 98K Mar 5 14:03 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K Mar 15 07:11 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.6K Mar 15 07:11 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 equiv_col
-rw-r--r-- 1 mcc users 4 Mar 3 18:30 instance
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 iscolored
-rw-r--r-- 1 mcc users 839K 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 booleans
BOOL_VECTOR

FORMULA_NAME StableMarking

=== Now, execution of the tool begins

BK_START 1779688497556

Invoking MCC driver with
GOLD_TOOL=
BK_EXAMINATION=StableMarking
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=1800
BK_INPUT=ASLink-PT-09a
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
StableMarking PT
Running Version 202505121319
[2026-05-25 05:54:59] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, StableMarking, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 1800]
[2026-05-25 05:54:59] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-25 05:54:59] [INFO ] Load time of PNML (sax parser for PT used): 192 ms
[2026-05-25 05:54:59] [INFO ] Transformed 1991 places.
[2026-05-25 05:54:59] [INFO ] Transformed 2919 transitions.
[2026-05-25 05:54:59] [INFO ] Found NUPN structural information;
[2026-05-25 05:54:59] [INFO ] Parsed PT model containing 1991 places and 2919 transitions and 10953 arcs in 317 ms.
Structural test allowed to assert that 229 places are NOT stable. Took 14 ms.
Ensure Unique test removed 31 transitions
Reduce redundant transitions removed 31 transitions.
[2026-05-25 05:55:00] [INFO ] Flatten gal took : 546 ms
[2026-05-25 05:55:00] [INFO ] Flatten gal took : 297 ms
[2026-05-25 05:55:01] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality5667823327527838888.gal : 130 ms
[2026-05-25 05:55:01] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality9786630090891436215.prop : 16 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/ReachabilityCardinality5667823327527838888.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality9786630090891436215.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
RANDOM walk for 40000 steps (175 resets) in 6252 ms. (6 steps per ms) remains 787/1762 properties
BEST_FIRST walk for 124 steps (0 resets) in 8 ms. (13 steps per ms) remains 787/787 properties
BEST_FIRST walk for 124 steps (0 resets) in 9 ms. (12 steps per ms) remains 787/787 properties
BEST_FIRST walk for 124 steps (0 resets) in 8 ms. (13 steps per ms) remains 787/787 properties
BEST_FIRST walk for 124 steps (0 resets) in 9 ms. (12 steps per ms) remains 787/787 properties
BEST_FIRST walk for 124 steps (0 resets) in 5 ms. (20 steps per ms) remains 787/787 properties
BEST_FIRST walk for 124 steps (0 resets) in 5 ms. (20 steps per ms) remains 787/787 properties
BEST_FIRST walk for 124 steps (0 resets) in 6 ms. (17 steps per ms) remains 787/787 properties
BEST_FIRST walk for 124 steps (0 resets) in 7 ms. (15 steps per ms) remains 787/787 properties
BEST_FIRST walk for 124 steps (0 resets) in 5 ms. (20 steps per ms) remains 787/787 properties
BEST_FIRST walk for 124 steps (0 resets) in 6 ms. (17 steps per ms) remains 787/787 properties
BEST_FIRST walk for 124 steps (0 resets) in 6 ms. (17 steps per ms) remains 787/787 properties
BEST_FIRST walk for 124 steps (0 resets) in 7 ms. (15 steps per ms) remains 787/787 properties
BEST_FIRST walk for 124 steps (0 resets) in 6 ms. (17 steps per ms) remains 787/787 properties
BEST_FIRST walk for 124 steps (0 resets) in 6 ms. (17 steps per ms) remains 787/787 properties
BEST_FIRST walk for 124 steps (0 resets) in 6 ms. (17 steps per ms) remains 787/787 properties
BEST_FIRST walk for 124 steps (0 resets) in 6 ms. (17 steps per ms) remains 787/787 properties
BEST_FIRST walk for 124 steps (0 resets) in 5 ms. (20 steps per ms) remains 787/787 properties
BEST_FIRST walk for 124 steps (0 resets) in 5 ms. (20 steps per ms) remains 787/787 properties
BEST_FIRST walk for 124 steps (0 resets) in 8 ms. (13 steps per ms) remains 787/787 properties
BEST_FIRST walk for 124 steps (0 resets) in 5 ms. (20 steps per ms) remains 787/787 properties
BEST_FIRST walk for 124 steps (0 resets) in 6 ms. (17 steps per ms) remains 787/787 properties
BEST_FIRST walk for 124 steps (0 resets) in 6 ms. (17 steps per ms) remains 787/787 properties
BEST_FIRST walk for 124 steps (0 resets) in 12 ms. (9 steps per ms) remains 787/787 properties
BEST_FIRST walk for 124 steps (0 resets) in 5 ms. (20 steps per ms) remains 787/787 properties
BEST_FIRST walk for 124 steps (0 resets) in 6 ms. (17 steps per ms) remains 787/787 properties
BEST_FIRST walk for 124 steps (0 resets) in 6 ms. (17 steps per ms) remains 787/787 properties
BEST_FIRST walk for 124 steps (0 resets) in 6 ms. (17 steps per ms) remains 787/787 properties
BEST_FIRST walk for 124 steps (0 resets) in 7 ms. (15 steps per ms) remains 787/787 properties
BEST_FIRST walk for 124 steps (0 resets) in 5 ms. (20 steps per ms) remains 787/787 properties
BEST_FIRST walk for 124 steps (0 resets) in 8 ms. (13 steps per ms) remains 787/787 properties
BEST_FIRST walk for 124 steps (0 resets) in 5 ms. (20 steps per ms) remains 787/787 properties
BEST_FIRST walk for 124 steps (0 resets) in 5 ms. (20 steps per ms) remains 787/787 properties
BEST_FIRST walk for 124 steps (0 resets) in 5 ms. (20 steps per ms) remains 787/787 properties
BEST_FIRST walk for 124 steps (0 resets) in 6 ms. (17 steps per ms) remains 787/787 properties
BEST_FIRST walk for 124 steps (0 resets) in 5 ms. (20 steps per ms) remains 787/787 properties
BEST_FIRST walk for 124 steps (0 resets) in 5 ms. (20 steps per ms) remains 787/787 properties
BEST_FIRST walk for 124 steps (0 resets) in 5 ms. (20 steps per ms) remains 787/787 properties
BEST_FIRST walk for 124 steps (0 resets) in 6 ms. (17 steps per ms) remains 787/787 properties
BEST_FIRST walk for 124 steps (0 resets) in 5 ms. (20 steps per ms) remains 787/787 properties
BEST_FIRST walk for 124 steps (0 resets) in 6 ms. (17 steps per ms) remains 787/787 properties
BEST_FIRST walk for 124 steps (0 resets) in 5 ms. (20 steps per ms) remains 787/787 properties
BEST_FIRST walk for 124 steps (0 resets) in 5 ms. (20 steps per ms) remains 787/787 properties
BEST_FIRST walk for 124 steps (0 resets) in 5 ms. (20 steps per ms) remains 787/787 properties
BEST_FIRST walk for 124 steps (0 resets) in 5 ms. (20 steps per ms) remains 787/787 properties
BEST_FIRST walk for 124 steps (0 resets) in 5 ms. (20 steps per ms) remains 787/787 properties
BEST_FIRST walk for 124 steps (0 resets) in 5 ms. (20 steps per ms) remains 787/787 properties
BEST_FIRST walk for 124 steps (0 resets) in 6 ms. (17 steps per ms) remains 787/787 properties
BEST_FIRST walk for 124 steps (0 resets) in 5 ms. (20 steps per ms) remains 787/787 properties
BEST_FIRST walk for 124 steps (0 resets) in 6 ms. (17 steps per ms) remains 787/787 properties
BEST_FIRST walk for 124 steps (0 resets) in 5 ms. (20 steps per ms) remains 787/787 properties
Loading property file /tmp/ReachabilityCardinality9786630090891436215.prop.
// Phase 1: matrix 2888 rows 1991 cols
[2026-05-25 05:55:01] [INFO ] Computed 384 invariants in 117 ms
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
SDD proceeding with computation,1762 properties remain. new max is 4
SDD size :1 after 7
Error getting values : (error "ParserException while parsing response: (timeout
org.smtlib.IParser$ParserException: Unbalanced parentheses at end of input")
At refinement iteration 0 (INCLUDED_ONLY) 0/787 variables, 787/787 constraints. Problems are: Problem set: 0 solved, 787 unsolved
SMT process timed out in 5752ms, After SMT, problems are : Problem set: 0 solved, 787 unsolved
Skipping Parikh replay, no witness traces provided.
Support contains 787 out of 1991 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 1991/1991 places, 2888/2888 transitions.
Ensure Unique test removed 9 places
Discarding 17 places :
Implicit places reduction removed 17 places
Drop transitions (Trivial Post-Agglo cleanup.) removed 124 transitions
Trivial Post-agglo rules discarded 124 transitions
Performed 124 trivial Post agglomeration. Transition count delta: 124
Iterating post reduction 0 with 150 rules applied. Total rules applied 150 place count 1965 transition count 2764
Reduce places removed 124 places and 0 transitions.
Iterating post reduction 1 with 124 rules applied. Total rules applied 274 place count 1841 transition count 2764
Performed 163 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 163 Pre rules applied. Total rules applied 274 place count 1841 transition count 2601
Deduced a syphon composed of 163 places in 9 ms
Ensure Unique test removed 59 places
Reduce places removed 222 places and 0 transitions.
Iterating global reduction 2 with 385 rules applied. Total rules applied 659 place count 1619 transition count 2601
Drop transitions (Trivial Post-Agglo cleanup.) removed 1 transitions
Trivial Post-agglo rules discarded 1 transitions
Performed 1 trivial Post agglomeration. Transition count delta: 1
Iterating post reduction 2 with 1 rules applied. Total rules applied 660 place count 1619 transition count 2600
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 3 with 1 rules applied. Total rules applied 661 place count 1618 transition count 2600
Discarding 2 places :
Symmetric choice reduction at 4 with 2 rule applications. Total rules 663 place count 1616 transition count 2590
Iterating global reduction 4 with 2 rules applied. Total rules applied 665 place count 1616 transition count 2590
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Discarding 1 places :
Implicit places reduction removed 1 places
Drop transitions (Trivial Post-Agglo cleanup.) removed 2 transitions
Trivial Post-agglo rules discarded 2 transitions
Performed 2 trivial Post agglomeration. Transition count delta: 2
Iterating post reduction 4 with 4 rules applied. Total rules applied 669 place count 1615 transition count 2587
Reduce places removed 2 places and 0 transitions.
Iterating post reduction 5 with 2 rules applied. Total rules applied 671 place count 1613 transition count 2587
Discarding 1 places :
Symmetric choice reduction at 6 with 1 rule applications. Total rules 672 place count 1612 transition count 2579
Iterating global reduction 6 with 1 rules applied. Total rules applied 673 place count 1612 transition count 2579
Discarding 1 places :
Symmetric choice reduction at 6 with 1 rule applications. Total rules 674 place count 1611 transition count 2571
Iterating global reduction 6 with 1 rules applied. Total rules applied 675 place count 1611 transition count 2571
Discarding 1 places :
Symmetric choice reduction at 6 with 1 rule applications. Total rules 676 place count 1610 transition count 2563
Iterating global reduction 6 with 1 rules applied. Total rules applied 677 place count 1610 transition count 2563
Discarding 1 places :
Symmetric choice reduction at 6 with 1 rule applications. Total rules 678 place count 1609 transition count 2555
Iterating global reduction 6 with 1 rules applied. Total rules applied 679 place count 1609 transition count 2555
Discarding 1 places :
Symmetric choice reduction at 6 with 1 rule applications. Total rules 680 place count 1608 transition count 2547
Iterating global reduction 6 with 1 rules applied. Total rules applied 681 place count 1608 transition count 2547
Discarding 1 places :
Symmetric choice reduction at 6 with 1 rule applications. Total rules 682 place count 1607 transition count 2539
Iterating global reduction 6 with 1 rules applied. Total rules applied 683 place count 1607 transition count 2539
Discarding 1 places :
Symmetric choice reduction at 6 with 1 rule applications. Total rules 684 place count 1606 transition count 2531
Iterating global reduction 6 with 1 rules applied. Total rules applied 685 place count 1606 transition count 2531
Discarding 1 places :
Symmetric choice reduction at 6 with 1 rule applications. Total rules 686 place count 1605 transition count 2523
Iterating global reduction 6 with 1 rules applied. Total rules applied 687 place count 1605 transition count 2523
Discarding 1 places :
Symmetric choice reduction at 6 with 1 rule applications. Total rules 688 place count 1604 transition count 2515
Iterating global reduction 6 with 1 rules applied. Total rules applied 689 place count 1604 transition count 2515
Discarding 1 places :
Symmetric choice reduction at 6 with 1 rule applications. Total rules 690 place count 1603 transition count 2507
Iterating global reduction 6 with 1 rules applied. Total rules applied 691 place count 1603 transition count 2507
Discarding 1 places :
Symmetric choice reduction at 6 with 1 rule applications. Total rules 692 place count 1602 transition count 2499
Iterating global reduction 6 with 1 rules applied. Total rules applied 693 place count 1602 transition count 2499
Discarding 1 places :
Symmetric choice reduction at 6 with 1 rule applications. Total rules 694 place count 1601 transition count 2491
Iterating global reduction 6 with 1 rules applied. Total rules applied 695 place count 1601 transition count 2491
Discarding 1 places :
Symmetric choice reduction at 6 with 1 rule applications. Total rules 696 place count 1600 transition count 2483
Iterating global reduction 6 with 1 rules applied. Total rules applied 697 place count 1600 transition count 2483
Discarding 1 places :
Symmetric choice reduction at 6 with 1 rule applications. Total rules 698 place count 1599 transition count 2475
Iterating global reduction 6 with 1 rules applied. Total rules applied 699 place count 1599 transition count 2475
SDD proceeding with computation,1762 properties remain. new max is 8
SDD size :7 after 9
Discarding 1 places :
Symmetric choice reduction at 6 with 1 rule applications. Total rules 700 place count 1598 transition count 2467
Iterating global reduction 6 with 1 rules applied. Total rules applied 701 place count 1598 transition count 2467
Discarding 1 places :
Symmetric choice reduction at 6 with 1 rule applications. Total rules 702 place count 1597 transition count 2459
Iterating global reduction 6 with 1 rules applied. Total rules applied 703 place count 1597 transition count 2459
Performed 33 Post agglomeration using F-continuation condition.Transition count delta: 33
Deduced a syphon composed of 33 places in 5 ms
Reduce places removed 33 places and 0 transitions.
Iterating global reduction 6 with 66 rules applied. Total rules applied 769 place count 1564 transition count 2426
Free-agglomeration rule (complex) applied 7 times.
Iterating global reduction 6 with 7 rules applied. Total rules applied 776 place count 1564 transition count 2419
Reduce places removed 7 places and 0 transitions.
Iterating post reduction 6 with 7 rules applied. Total rules applied 783 place count 1557 transition count 2419
Partial Free-agglomeration rule applied 2 times.
Drop transitions (Partial Free agglomeration) removed 2 transitions
Iterating global reduction 7 with 2 rules applied. Total rules applied 785 place count 1557 transition count 2419
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 7 with 1 rules applied. Total rules applied 786 place count 1556 transition count 2418
Applied a total of 786 rules in 1412 ms. Remains 1556 /1991 variables (removed 435) and now considering 2418/2888 (removed 470) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 1423 ms. Remains : 1556/1991 places, 2418/2888 transitions.
Invariant property smplace_227 does not hold.
Invariant property smplace_186 does not hold.
Invariant property smplace_183 does not hold.
Invariant property smplace_180 does not hold.
Invariant property smplace_166 does not hold.
Invariant property smplace_163 does not hold.
Invariant property smplace_160 does not hold.
Invariant property smplace_144 does not hold.
Invariant property smplace_143 does not hold.
Invariant property smplace_142 does not hold.
Invariant property smplace_141 does not hold.
Invariant property smplace_140 does not hold.
Invariant property smplace_139 does not hold.
Invariant property smplace_138 does not hold.
SDD proceeding with computation,1748 properties remain. new max is 8
SDD size :9 after 25
Invariant property smplace_146 does not hold.
Invariant property smplace_145 does not hold.
SDD proceeding with computation,1746 properties remain. new max is 8
SDD size :25 after 44
SDD proceeding with computation,1746 properties remain. new max is 16
SDD size :44 after 68
Invariant property smplace_168 does not hold.
Invariant property smplace_165 does not hold.
Invariant property smplace_164 does not hold.
Invariant property smplace_162 does not hold.
Invariant property smplace_161 does not hold.
SDD proceeding with computation,1741 properties remain. new max is 16
SDD size :68 after 93
Invariant property smplace_167 does not hold.
SDD proceeding with computation,1740 properties remain. new max is 16
SDD size :93 after 120
Invariant property smplace_219 does not hold.
Invariant property smplace_188 does not hold.
Invariant property smplace_187 does not hold.
Invariant property smplace_185 does not hold.
Invariant property smplace_184 does not hold.
Invariant property smplace_182 does not hold.
Invariant property smplace_181 does not hold.
Invariant property smplace_179 does not hold.
Invariant property smplace_176 does not hold.
Invariant property smplace_159 does not hold.
Invariant property smplace_156 does not hold.
Invariant property smplace_137 does not hold.
Invariant property smplace_134 does not hold.
Invariant property smplace_100 does not hold.
SDD proceeding with computation,1726 properties remain. new max is 16
SDD size :120 after 267
Invariant property smplace_402 does not hold.
Invariant property smplace_399 does not hold.
Invariant property smplace_218 does not hold.
SDD proceeding with computation,1723 properties remain. new max is 16
SDD size :267 after 2035
Invariant property smplace_414 does not hold.
Invariant property smplace_350 does not hold.
Invariant property smplace_328 does not hold.
Invariant property smplace_294 does not hold.
SDD proceeding with computation,1719 properties remain. new max is 16
SDD size :2035 after 3895
Invariant property smplace_422 does not hold.
Invariant property smplace_380 does not hold.
Invariant property smplace_377 does not hold.
Invariant property smplace_374 does not hold.
Invariant property smplace_370 does not hold.
Invariant property smplace_360 does not hold.
Invariant property smplace_357 does not hold.
Invariant property smplace_354 does not hold.
Invariant property smplace_338 does not hold.
Invariant property smplace_337 does not hold.
Invariant property smplace_336 does not hold.
Invariant property smplace_335 does not hold.
Invariant property smplace_334 does not hold.
Invariant property smplace_333 does not hold.
Invariant property smplace_332 does not hold.
SDD proceeding with computation,1704 properties remain. new max is 16
SDD size :3895 after 8845
Invariant property smplace_340 does not hold.
Invariant property smplace_339 does not hold.
SDD proceeding with computation,1702 properties remain. new max is 16
SDD size :8845 after 10429
SDD proceeding with computation,1702 properties remain. new max is 32
SDD size :10429 after 14653
Invariant property smplace_362 does not hold.
Invariant property smplace_361 does not hold.
Invariant property smplace_359 does not hold.
Invariant property smplace_358 does not hold.
Invariant property smplace_356 does not hold.
Invariant property smplace_355 does not hold.
SDD proceeding with computation,1696 properties remain. new max is 32
SDD size :14653 after 31891
RANDOM walk for 2143840 steps (17382 resets) in 120004 ms. (17 steps per ms) remains 567/787 properties
BEST_FIRST walk for 4004 steps (8 resets) in 27 ms. (143 steps per ms) remains 567/567 properties
BEST_FIRST walk for 4004 steps (8 resets) in 21 ms. (182 steps per ms) remains 567/567 properties
BEST_FIRST walk for 4004 steps (8 resets) in 24 ms. (160 steps per ms) remains 567/567 properties
BEST_FIRST walk for 4004 steps (8 resets) in 19 ms. (200 steps per ms) remains 567/567 properties
BEST_FIRST walk for 4004 steps (8 resets) in 17 ms. (222 steps per ms) remains 567/567 properties
BEST_FIRST walk for 4004 steps (8 resets) in 28 ms. (138 steps per ms) remains 567/567 properties
BEST_FIRST walk for 4004 steps (8 resets) in 22 ms. (174 steps per ms) remains 567/567 properties
BEST_FIRST walk for 4004 steps (8 resets) in 26 ms. (148 steps per ms) remains 567/567 properties
BEST_FIRST walk for 4003 steps (8 resets) in 18 ms. (210 steps per ms) remains 567/567 properties
BEST_FIRST walk for 4003 steps (8 resets) in 25 ms. (153 steps per ms) remains 567/567 properties
BEST_FIRST walk for 4004 steps (8 resets) in 23 ms. (166 steps per ms) remains 567/567 properties
BEST_FIRST walk for 4004 steps (8 resets) in 25 ms. (154 steps per ms) remains 567/567 properties
BEST_FIRST walk for 4004 steps (8 resets) in 24 ms. (160 steps per ms) remains 567/567 properties
BEST_FIRST walk for 4004 steps (8 resets) in 33 ms. (117 steps per ms) remains 567/567 properties
BEST_FIRST walk for 4004 steps (8 resets) in 28 ms. (138 steps per ms) remains 567/567 properties
BEST_FIRST walk for 4004 steps (8 resets) in 28 ms. (138 steps per ms) remains 567/567 properties
BEST_FIRST walk for 4004 steps (8 resets) in 22 ms. (174 steps per ms) remains 567/567 properties
BEST_FIRST walk for 4004 steps (8 resets) in 31 ms. (125 steps per ms) remains 567/567 properties
BEST_FIRST walk for 4004 steps (8 resets) in 28 ms. (138 steps per ms) remains 567/567 properties
BEST_FIRST walk for 4003 steps (8 resets) in 21 ms. (181 steps per ms) remains 567/567 properties
BEST_FIRST walk for 4004 steps (8 resets) in 27 ms. (143 steps per ms) remains 567/567 properties
BEST_FIRST walk for 4004 steps (8 resets) in 28 ms. (138 steps per ms) remains 567/567 properties
BEST_FIRST walk for 4003 steps (8 resets) in 27 ms. (142 steps per ms) remains 567/567 properties
BEST_FIRST walk for 4004 steps (8 resets) in 29 ms. (133 steps per ms) remains 567/567 properties
BEST_FIRST walk for 4004 steps (8 resets) in 29 ms. (133 steps per ms) remains 567/567 properties
BEST_FIRST walk for 4004 steps (8 resets) in 24 ms. (160 steps per ms) remains 567/567 properties
BEST_FIRST walk for 4004 steps (8 resets) in 27 ms. (143 steps per ms) remains 567/567 properties
BEST_FIRST walk for 4004 steps (8 resets) in 28 ms. (138 steps per ms) remains 567/567 properties
BEST_FIRST walk for 4004 steps (8 resets) in 23 ms. (166 steps per ms) remains 567/567 properties
BEST_FIRST walk for 4004 steps (8 resets) in 19 ms. (200 steps per ms) remains 567/567 properties
BEST_FIRST walk for 4004 steps (8 resets) in 23 ms. (166 steps per ms) remains 567/567 properties
BEST_FIRST walk for 4004 steps (8 resets) in 29 ms. (133 steps per ms) remains 567/567 properties
BEST_FIRST walk for 4004 steps (8 resets) in 18 ms. (210 steps per ms) remains 567/567 properties
BEST_FIRST walk for 4003 steps (8 resets) in 20 ms. (190 steps per ms) remains 567/567 properties
BEST_FIRST walk for 4004 steps (8 resets) in 24 ms. (160 steps per ms) remains 567/567 properties
BEST_FIRST walk for 4003 steps (8 resets) in 31 ms. (125 steps per ms) remains 567/567 properties
BEST_FIRST walk for 4004 steps (8 resets) in 27 ms. (143 steps per ms) remains 567/567 properties
BEST_FIRST walk for 4004 steps (8 resets) in 27 ms. (143 steps per ms) remains 567/567 properties
BEST_FIRST walk for 4003 steps (8 resets) in 21 ms. (181 steps per ms) remains 567/567 properties
BEST_FIRST walk for 4004 steps (8 resets) in 64 ms. (61 steps per ms) remains 567/567 properties
BEST_FIRST walk for 4004 steps (8 resets) in 23 ms. (166 steps per ms) remains 567/567 properties
BEST_FIRST walk for 4004 steps (8 resets) in 23 ms. (166 steps per ms) remains 567/567 properties
BEST_FIRST walk for 4004 steps (8 resets) in 24 ms. (160 steps per ms) remains 567/567 properties
BEST_FIRST walk for 4004 steps (8 resets) in 19 ms. (200 steps per ms) remains 567/567 properties
BEST_FIRST walk for 4004 steps (8 resets) in 17 ms. (222 steps per ms) remains 567/567 properties
BEST_FIRST walk for 4003 steps (8 resets) in 17 ms. (222 steps per ms) remains 567/567 properties
BEST_FIRST walk for 4004 steps (8 resets) in 23 ms. (166 steps per ms) remains 567/567 properties
BEST_FIRST walk for 4004 steps (8 resets) in 16 ms. (235 steps per ms) remains 567/567 properties
BEST_FIRST walk for 4004 steps (8 resets) in 17 ms. (222 steps per ms) remains 567/567 properties
BEST_FIRST walk for 4004 steps (8 resets) in 15 ms. (250 steps per ms) remains 567/567 properties
// Phase 1: matrix 2418 rows 1556 cols
[2026-05-25 05:55:39] [INFO ] Computed 298 invariants in 50 ms
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
SDD proceeding with computation,1696 properties remain. new max is 64
SDD size :31891 after 32689
SDD proceeding with computation,1696 properties remain. new max is 128
SDD size :32689 after 56097
Invariant property smplace_382 does not hold.
Invariant property smplace_381 does not hold.
Invariant property smplace_379 does not hold.
Invariant property smplace_378 does not hold.
Invariant property smplace_376 does not hold.
Invariant property smplace_375 does not hold.
Invariant property smplace_373 does not hold.
Invariant property smplace_353 does not hold.
Invariant property smplace_331 does not hold.
Invariant property smplace_221 does not hold.
Invariant property smplace_192 does not hold.
Invariant property smplace_191 does not hold.
SDD proceeding with computation,1684 properties remain. new max is 128
SDD size :56097 after 94341
Invariant property smplace_597 does not hold.
Invariant property smplace_594 does not hold.
Invariant property smplace_419 does not hold.
Invariant property smplace_416 does not hold.
Invariant property smplace_413 does not hold.
Invariant property smplace_408 does not hold.
Invariant property smplace_407 does not hold.
Invariant property smplace_404 does not hold.
Invariant property smplace_401 does not hold.
Invariant property smplace_400 does not hold.
Invariant property smplace_386 does not hold.
Invariant property smplace_385 does not hold.
Invariant property smplace_190 does not hold.
SDD proceeding with computation,1671 properties remain. new max is 128
SDD size :94341 after 284168
Invariant property smplace_617 does not hold.
Invariant property smplace_535 does not hold.
Invariant property smplace_534 does not hold.
Invariant property smplace_533 does not hold.
Invariant property smplace_532 does not hold.
Invariant property smplace_531 does not hold.
Invariant property smplace_530 does not hold.
Invariant property smplace_529 does not hold.
Invariant property smplace_528 does not hold.
Invariant property smplace_527 does not hold.
Invariant property smplace_384 does not hold.
SDD proceeding with computation,1660 properties remain. new max is 128
SDD size :284168 after 2.6001e+06
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/567 variables, 24/24 constraints. Problems are: Problem set: 0 solved, 567 unsolved
SDD proceeding with computation,1660 properties remain. new max is 256
SDD size :2.6001e+06 after 1.40246e+07
Invariant property smplace_812 does not hold.
Invariant property smplace_804 does not hold.
Invariant property smplace_798 does not hold.
Invariant property smplace_794 does not hold.
Invariant property smplace_792 does not hold.
Invariant property smplace_789 does not hold.
Invariant property smplace_760 does not hold.
Invariant property smplace_740 does not hold.
Invariant property smplace_730 does not hold.
Invariant property smplace_729 does not hold.
Invariant property smplace_728 does not hold.
Invariant property smplace_727 does not hold.
Invariant property smplace_726 does not hold.
Invariant property smplace_725 does not hold.
Invariant property smplace_724 does not hold.
Invariant property smplace_723 does not hold.
Invariant property smplace_722 does not hold.
Invariant property smplace_721 does not hold.
Invariant property smplace_718 does not hold.
Invariant property smplace_684 does not hold.
Invariant property smplace_614 does not hold.
Invariant property smplace_611 does not hold.
Invariant property smplace_609 does not hold.
Invariant property smplace_608 does not hold.
Invariant property smplace_603 does not hold.
Invariant property smplace_602 does not hold.
Invariant property smplace_599 does not hold.
Invariant property smplace_596 does not hold.
Invariant property smplace_595 does not hold.
Invariant property smplace_581 does not hold.
Invariant property smplace_580 does not hold.
Invariant property smplace_579 does not hold.
Invariant property smplace_577 does not hold.
Invariant property smplace_576 does not hold.
Invariant property smplace_575 does not hold.
Invariant property smplace_574 does not hold.
Invariant property smplace_573 does not hold.
Invariant property smplace_572 does not hold.
Invariant property smplace_571 does not hold.
Invariant property smplace_570 does not hold.
Invariant property smplace_569 does not hold.
Invariant property smplace_568 does not hold.
Invariant property smplace_565 does not hold.
Invariant property smplace_557 does not hold.
Invariant property smplace_556 does not hold.
Invariant property smplace_555 does not hold.
Invariant property smplace_554 does not hold.
Invariant property smplace_553 does not hold.
Invariant property smplace_552 does not hold.
Invariant property smplace_551 does not hold.
Invariant property smplace_550 does not hold.
Invariant property smplace_549 does not hold.
Invariant property smplace_548 does not hold.
Invariant property smplace_545 does not hold.
Invariant property smplace_526 does not hold.
Invariant property smplace_523 does not hold.
Invariant property smplace_489 does not hold.
SDD proceeding with computation,1603 properties remain. new max is 256
SDD size :1.40246e+07 after 3.28572e+10
Invariant property smplace_1199 does not hold.
Invariant property smplace_1182 does not hold.
Invariant property smplace_1181 does not hold.
Invariant property smplace_1180 does not hold.
Invariant property smplace_1179 does not hold.
Invariant property smplace_1007 does not hold.
Invariant property smplace_1004 does not hold.
Invariant property smplace_1001 does not hold.
Invariant property smplace_999 does not hold.
Invariant property smplace_998 does not hold.
Invariant property smplace_993 does not hold.
Invariant property smplace_992 does not hold.
Invariant property smplace_989 does not hold.
Invariant property smplace_987 does not hold.
Invariant property smplace_986 does not hold.
Invariant property smplace_985 does not hold.
Invariant property smplace_984 does not hold.
Invariant property smplace_971 does not hold.
Invariant property smplace_970 does not hold.
Invariant property smplace_969 does not hold.
Invariant property smplace_967 does not hold.
Invariant property smplace_966 does not hold.
Invariant property smplace_965 does not hold.
Invariant property smplace_964 does not hold.
Invariant property smplace_963 does not hold.
Invariant property smplace_962 does not hold.
Invariant property smplace_961 does not hold.
Invariant property smplace_960 does not hold.
Invariant property smplace_959 does not hold.
Invariant property smplace_958 does not hold.
Invariant property smplace_955 does not hold.
Invariant property smplace_947 does not hold.
Invariant property smplace_946 does not hold.
Invariant property smplace_945 does not hold.
Invariant property smplace_944 does not hold.
Invariant property smplace_943 does not hold.
Invariant property smplace_942 does not hold.
Invariant property smplace_941 does not hold.
Invariant property smplace_940 does not hold.
Invariant property smplace_939 does not hold.
Invariant property smplace_938 does not hold.
Invariant property smplace_935 does not hold.
Invariant property smplace_925 does not hold.
Invariant property smplace_924 does not hold.
Invariant property smplace_923 does not hold.
Invariant property smplace_922 does not hold.
Invariant property smplace_921 does not hold.
Invariant property smplace_920 does not hold.
Invariant property smplace_919 does not hold.
Invariant property smplace_918 does not hold.
Invariant property smplace_917 does not hold.
Invariant property smplace_916 does not hold.
Invariant property smplace_913 does not hold.
Invariant property smplace_879 does not hold.
Invariant property smplace_809 does not hold.
Invariant property smplace_806 does not hold.
Invariant property smplace_803 does not hold.
Invariant property smplace_797 does not hold.
Invariant property smplace_791 does not hold.
Invariant property smplace_790 does not hold.
Invariant property smplace_776 does not hold.
Invariant property smplace_775 does not hold.
Invariant property smplace_774 does not hold.
Invariant property smplace_772 does not hold.
Invariant property smplace_771 does not hold.
Invariant property smplace_770 does not hold.
Invariant property smplace_769 does not hold.
Invariant property smplace_768 does not hold.
Invariant property smplace_767 does not hold.
Invariant property smplace_766 does not hold.
Invariant property smplace_765 does not hold.
Invariant property smplace_764 does not hold.
Invariant property smplace_763 does not hold.
Invariant property smplace_752 does not hold.
Invariant property smplace_751 does not hold.
Invariant property smplace_750 does not hold.
Invariant property smplace_749 does not hold.
Invariant property smplace_748 does not hold.
Invariant property smplace_747 does not hold.
Invariant property smplace_746 does not hold.
Invariant property smplace_745 does not hold.
Invariant property smplace_744 does not hold.
Invariant property smplace_743 does not hold.
SDD proceeding with computation,1520 properties remain. new max is 256
SDD size :3.28572e+10 after 4.36006e+14
Invariant property smplace_1394 does not hold.
Invariant property smplace_1391 does not hold.
Invariant property smplace_1377 does not hold.
Invariant property smplace_1376 does not hold.
Invariant property smplace_1375 does not hold.
Invariant property smplace_1374 does not hold.
Invariant property smplace_1361 does not hold.
Invariant property smplace_1360 does not hold.
Invariant property smplace_1359 does not hold.
Invariant property smplace_1202 does not hold.
Invariant property smplace_1196 does not hold.
Invariant property smplace_1194 does not hold.
Invariant property smplace_1193 does not hold.
Invariant property smplace_1188 does not hold.
Invariant property smplace_1187 does not hold.
Invariant property smplace_1184 does not hold.
Invariant property smplace_1166 does not hold.
Invariant property smplace_1165 does not hold.
Invariant property smplace_1164 does not hold.
Invariant property smplace_1162 does not hold.
Invariant property smplace_1161 does not hold.
Invariant property smplace_1160 does not hold.
Invariant property smplace_1159 does not hold.
Invariant property smplace_1158 does not hold.
Invariant property smplace_1157 does not hold.
Invariant property smplace_1156 does not hold.
Invariant property smplace_1155 does not hold.
Invariant property smplace_1154 does not hold.
Invariant property smplace_1153 does not hold.
Invariant property smplace_1150 does not hold.
Invariant property smplace_1142 does not hold.
Invariant property smplace_1141 does not hold.
Invariant property smplace_1140 does not hold.
Invariant property smplace_1139 does not hold.
Invariant property smplace_1138 does not hold.
Invariant property smplace_1137 does not hold.
Invariant property smplace_1136 does not hold.
Invariant property smplace_1135 does not hold.
Invariant property smplace_1134 does not hold.
Invariant property smplace_1133 does not hold.
Invariant property smplace_1130 does not hold.
Invariant property smplace_1120 does not hold.
Invariant property smplace_1119 does not hold.
Invariant property smplace_1118 does not hold.
Invariant property smplace_1117 does not hold.
Invariant property smplace_1116 does not hold.
Invariant property smplace_1115 does not hold.
Invariant property smplace_1114 does not hold.
Invariant property smplace_1113 does not hold.
Invariant property smplace_1112 does not hold.
Invariant property smplace_1111 does not hold.
Invariant property smplace_1108 does not hold.
Invariant property smplace_1074 does not hold.
At refinement iteration 1 (INCLUDED_ONLY) 0/567 variables, 0/24 constraints. Problems are: Problem set: 0 solved, 567 unsolved
At refinement iteration 2 (OVERLAPS) 87/654 variables, 72/96 constraints. Problems are: Problem set: 0 solved, 567 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/654 variables, 8/104 constraints. Problems are: Problem set: 0 solved, 567 unsolved
SDD proceeding with computation,1467 properties remain. new max is 256
SDD size :4.36006e+14 after 2.55118e+18
Invariant property smplace_1589 does not hold.
Invariant property smplace_1586 does not hold.
Invariant property smplace_1578 does not hold.
Invariant property smplace_1574 does not hold.
Invariant property smplace_1572 does not hold.
Invariant property smplace_1571 does not hold.
Invariant property smplace_1570 does not hold.
Invariant property smplace_1569 does not hold.
Invariant property smplace_1556 does not hold.
Invariant property smplace_1555 does not hold.
Invariant property smplace_1554 does not hold.
Invariant property smplace_1397 does not hold.
Invariant property smplace_1389 does not hold.
Invariant property smplace_1388 does not hold.
Invariant property smplace_1383 does not hold.
Invariant property smplace_1382 does not hold.
Invariant property smplace_1379 does not hold.
Invariant property smplace_1357 does not hold.
Invariant property smplace_1356 does not hold.
Invariant property smplace_1355 does not hold.
Invariant property smplace_1354 does not hold.
Invariant property smplace_1353 does not hold.
Invariant property smplace_1352 does not hold.
Invariant property smplace_1351 does not hold.
Invariant property smplace_1350 does not hold.
Invariant property smplace_1349 does not hold.
Invariant property smplace_1348 does not hold.
Invariant property smplace_1345 does not hold.
Invariant property smplace_1337 does not hold.
Invariant property smplace_1336 does not hold.
Invariant property smplace_1335 does not hold.
Invariant property smplace_1334 does not hold.
Invariant property smplace_1333 does not hold.
Invariant property smplace_1332 does not hold.
Invariant property smplace_1331 does not hold.
Invariant property smplace_1330 does not hold.
Invariant property smplace_1329 does not hold.
Invariant property smplace_1328 does not hold.
Invariant property smplace_1325 does not hold.
Invariant property smplace_1315 does not hold.
Invariant property smplace_1314 does not hold.
Invariant property smplace_1313 does not hold.
Invariant property smplace_1312 does not hold.
Invariant property smplace_1311 does not hold.
Invariant property smplace_1310 does not hold.
Invariant property smplace_1309 does not hold.
Invariant property smplace_1308 does not hold.
Invariant property smplace_1307 does not hold.
Invariant property smplace_1306 does not hold.
Invariant property smplace_1303 does not hold.
Invariant property smplace_1269 does not hold.
SDD proceeding with computation,1416 properties remain. new max is 256
SDD size :2.55118e+18 after 6.01141e+21
Invariant property smplace_1784 does not hold.
Invariant property smplace_1767 does not hold.
Invariant property smplace_1766 does not hold.
Invariant property smplace_1765 does not hold.
Invariant property smplace_1764 does not hold.
Invariant property smplace_1592 does not hold.
Invariant property smplace_1584 does not hold.
Invariant property smplace_1583 does not hold.
Invariant property smplace_1577 does not hold.
Invariant property smplace_1552 does not hold.
Invariant property smplace_1551 does not hold.
Invariant property smplace_1550 does not hold.
Invariant property smplace_1549 does not hold.
Invariant property smplace_1548 does not hold.
Invariant property smplace_1547 does not hold.
Invariant property smplace_1546 does not hold.
Invariant property smplace_1545 does not hold.
Invariant property smplace_1544 does not hold.
Invariant property smplace_1543 does not hold.
Invariant property smplace_1540 does not hold.
Invariant property smplace_1532 does not hold.
Invariant property smplace_1531 does not hold.
Invariant property smplace_1530 does not hold.
Invariant property smplace_1529 does not hold.
Invariant property smplace_1528 does not hold.
Invariant property smplace_1527 does not hold.
Invariant property smplace_1526 does not hold.
Invariant property smplace_1525 does not hold.
Invariant property smplace_1524 does not hold.
Invariant property smplace_1523 does not hold.
Invariant property smplace_1520 does not hold.
Invariant property smplace_1510 does not hold.
Invariant property smplace_1509 does not hold.
Invariant property smplace_1508 does not hold.
Invariant property smplace_1507 does not hold.
Invariant property smplace_1506 does not hold.
Invariant property smplace_1505 does not hold.
Invariant property smplace_1504 does not hold.
Invariant property smplace_1503 does not hold.
Invariant property smplace_1502 does not hold.
Invariant property smplace_1501 does not hold.
Invariant property smplace_1498 does not hold.
Invariant property smplace_1464 does not hold.
At refinement iteration 4 (INCLUDED_ONLY) 0/654 variables, 0/104 constraints. Problems are: Problem set: 0 solved, 567 unsolved
At refinement iteration 5 (OVERLAPS) 2/656 variables, 2/106 constraints. Problems are: Problem set: 0 solved, 567 unsolved
SDD proceeding with computation,1373 properties remain. new max is 256
SDD size :6.01141e+21 after 4.04384e+23
Invariant property smplace_1787 does not hold.
Invariant property smplace_1781 does not hold.
Invariant property smplace_1751 does not hold.
Invariant property smplace_1750 does not hold.
Invariant property smplace_1749 does not hold.
Invariant property smplace_1745 does not hold.
Invariant property smplace_1742 does not hold.
Invariant property smplace_1739 does not hold.
Invariant property smplace_1725 does not hold.
Invariant property smplace_1724 does not hold.
Invariant property smplace_1723 does not hold.
Invariant property smplace_1722 does not hold.
Invariant property smplace_1721 does not hold.
Invariant property smplace_1720 does not hold.
Invariant property smplace_1719 does not hold.
Invariant property smplace_1705 does not hold.
Invariant property smplace_1704 does not hold.
Invariant property smplace_1703 does not hold.
Invariant property smplace_1702 does not hold.
Invariant property smplace_1701 does not hold.
Invariant property smplace_1700 does not hold.
Invariant property smplace_1699 does not hold.
Invariant property smplace_1698 does not hold.
Invariant property smplace_1697 does not hold.
Invariant property smplace_1696 does not hold.
SDD proceeding with computation,1348 properties remain. new max is 256
SDD size :4.04384e+23 after 3.59902e+25
Invariant property smplace_1861 does not hold.
Invariant property smplace_1860 does not hold.
Invariant property smplace_1851 does not hold.
Invariant property smplace_1823 does not hold.
Invariant property smplace_1822 does not hold.
Invariant property smplace_1821 does not hold.
Invariant property smplace_1820 does not hold.
Invariant property smplace_1819 does not hold.
Invariant property smplace_1818 does not hold.
Invariant property smplace_1817 does not hold.
Invariant property smplace_1816 does not hold.
Invariant property smplace_1815 does not hold.
Invariant property smplace_1814 does not hold.
Invariant property smplace_1813 does not hold.
Invariant property smplace_1812 does not hold.
Invariant property smplace_1811 does not hold.
Invariant property smplace_1810 does not hold.
Invariant property smplace_1809 does not hold.
Invariant property smplace_1747 does not hold.
Invariant property smplace_1746 does not hold.
Invariant property smplace_1744 does not hold.
Invariant property smplace_1743 does not hold.
Invariant property smplace_1741 does not hold.
Invariant property smplace_1740 does not hold.
Invariant property smplace_1738 does not hold.
Invariant property smplace_1727 does not hold.
Invariant property smplace_1726 does not hold.
Invariant property smplace_1718 does not hold.
Invariant property smplace_1611 does not hold.
Invariant property smplace_1610 does not hold.
Invariant property smplace_1609 does not hold.
Invariant property smplace_1608 does not hold.
Invariant property smplace_1607 does not hold.
Invariant property smplace_1606 does not hold.
Invariant property smplace_1605 does not hold.
Invariant property smplace_1604 does not hold.
Invariant property smplace_1603 does not hold.
Invariant property smplace_1602 does not hold.
Invariant property smplace_1601 does not hold.
Invariant property smplace_1600 does not hold.
Invariant property smplace_1599 does not hold.
Invariant property smplace_1598 does not hold.
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 656/3974 variables, and 106 constraints, problems are : Problem set: 0 solved, 567 unsolved in 45021 ms.
Refiners :[Positive P Invariants (semi-flows): 74/104 constraints, Generalized P Invariants (flows): 32/194 constraints, State Equation: 0/1556 constraints, PredecessorRefiner: 567/567 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 567 unsolved
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/567 variables, 24/24 constraints. Problems are: Problem set: 0 solved, 567 unsolved
SDD proceeding with computation,1306 properties remain. new max is 256
SDD size :3.59902e+25 after 1.24429e+27
Invariant property smplace_1808 does not hold.
Invariant property smplace_1807 does not hold.
Invariant property smplace_1785 does not hold.
Invariant property smplace_1783 does not hold.
Invariant property smplace_1780 does not hold.
Invariant property smplace_1762 does not hold.
Invariant property smplace_1759 does not hold.
Invariant property smplace_1758 does not hold.
Invariant property smplace_1757 does not hold.
Invariant property smplace_1756 does not hold.
Invariant property smplace_1670 does not hold.
Invariant property smplace_1654 does not hold.
Invariant property smplace_1653 does not hold.
Invariant property smplace_1652 does not hold.
Invariant property smplace_1649 does not hold.
Invariant property smplace_1597 does not hold.
Invariant property smplace_1596 does not hold.
Invariant property smplace_1595 does not hold.
Invariant property smplace_1594 does not hold.
SDD proceeding with computation,1287 properties remain. new max is 256
SDD size :1.24429e+27 after 1.39517e+27
Invariant property smplace_1761 does not hold.
Invariant property smplace_1651 does not hold.
Invariant property smplace_1650 does not hold.
Invariant property smplace_1648 does not hold.
SDD proceeding with computation,1283 properties remain. new max is 256
SDD size :1.39517e+27 after 1.39738e+27
Invariant property smplace_1647 does not hold.
Invariant property smplace_1646 does not hold.
Invariant property smplace_1645 does not hold.
Invariant property smplace_1644 does not hold.
Invariant property smplace_1643 does not hold.
Invariant property smplace_1642 does not hold.
Invariant property smplace_1641 does not hold.
Invariant property smplace_1640 does not hold.
Invariant property smplace_1639 does not hold.
Invariant property smplace_1638 does not hold.
Invariant property smplace_1637 does not hold.
Invariant property smplace_1636 does not hold.
Invariant property smplace_1635 does not hold.
Invariant property smplace_1634 does not hold.
Invariant property smplace_1633 does not hold.
Invariant property smplace_1632 does not hold.
Invariant property smplace_1590 does not hold.
Invariant property smplace_1585 does not hold.
Invariant property smplace_1561 does not hold.
Invariant property smplace_1475 does not hold.
At refinement iteration 1 (INCLUDED_ONLY) 0/567 variables, 0/24 constraints. Problems are: Problem set: 0 solved, 567 unsolved
Invariant property smplace_1459 does not hold.
Invariant property smplace_1458 does not hold.
Invariant property smplace_1457 does not hold.
Invariant property smplace_1456 does not hold.
Invariant property smplace_1454 does not hold.
Invariant property smplace_1453 does not hold.
Invariant property smplace_1452 does not hold.
Invariant property smplace_1451 does not hold.
Invariant property smplace_1450 does not hold.
Invariant property smplace_1449 does not hold.
At refinement iteration 2 (OVERLAPS) 87/654 variables, 72/96 constraints. Problems are: Problem set: 0 solved, 567 unsolved
Invariant property smplace_1416 does not hold.
Invariant property smplace_1415 does not hold.
Invariant property smplace_1414 does not hold.
Invariant property smplace_1413 does not hold.
Invariant property smplace_1412 does not hold.
Invariant property smplace_1411 does not hold.
Invariant property smplace_1410 does not hold.
Invariant property smplace_1409 does not hold.
Invariant property smplace_1408 does not hold.
Invariant property smplace_1407 does not hold.
Invariant property smplace_1406 does not hold.
Invariant property smplace_1405 does not hold.
Invariant property smplace_1404 does not hold.
Invariant property smplace_1403 does not hold.
Invariant property smplace_1402 does not hold.
Invariant property smplace_1401 does not hold.
Invariant property smplace_1400 does not hold.
Invariant property smplace_1399 does not hold.
At refinement iteration 3 (INCLUDED_ONLY) 0/654 variables, 8/104 constraints. Problems are: Problem set: 0 solved, 567 unsolved
Invariant property smplace_1221 does not hold.
Invariant property smplace_1220 does not hold.
Invariant property smplace_1219 does not hold.
Invariant property smplace_1218 does not hold.
At refinement iteration 4 (INCLUDED_ONLY) 0/654 variables, 0/104 constraints. Problems are: Problem set: 0 solved, 567 unsolved
At refinement iteration 5 (OVERLAPS) 2/656 variables, 2/106 constraints. Problems are: Problem set: 0 solved, 567 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 656/3974 variables, and 106 constraints, problems are : Problem set: 0 solved, 567 unsolved in 45048 ms.
Refiners :[Positive P Invariants (semi-flows): 74/104 constraints, Generalized P Invariants (flows): 32/194 constraints, State Equation: 0/1556 constraints, PredecessorRefiner: 0/567 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 90327ms problems are : Problem set: 0 solved, 567 unsolved
Skipping Parikh replay, no witness traces provided.
Support contains 567 out of 1556 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 1556/1556 places, 2418/2418 transitions.
Ensure Unique test removed 5 places
Drop transitions (Trivial Post-Agglo cleanup.) removed 7 transitions
Trivial Post-agglo rules discarded 7 transitions
Performed 7 trivial Post agglomeration. Transition count delta: 7
Iterating post reduction 0 with 12 rules applied. Total rules applied 12 place count 1551 transition count 2411
Reduce places removed 10 places and 0 transitions.
Iterating post reduction 1 with 10 rules applied. Total rules applied 22 place count 1541 transition count 2411
Performed 8 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 8 Pre rules applied. Total rules applied 22 place count 1541 transition count 2403
Deduced a syphon composed of 8 places in 4 ms
Reduce places removed 8 places and 0 transitions.
Iterating global reduction 2 with 16 rules applied. Total rules applied 38 place count 1533 transition count 2403
Discarding 1 places :
Implicit places reduction removed 1 places
Iterating post reduction 2 with 1 rules applied. Total rules applied 39 place count 1532 transition count 2403
Discarding 2 places :
Symmetric choice reduction at 3 with 2 rule applications. Total rules 41 place count 1530 transition count 2391
Iterating global reduction 3 with 2 rules applied. Total rules applied 43 place count 1530 transition count 2391
Discarding 2 places :
Implicit places reduction removed 2 places
Iterating post reduction 3 with 2 rules applied. Total rules applied 45 place count 1528 transition count 2391
Performed 18 Post agglomeration using F-continuation condition.Transition count delta: 18
Deduced a syphon composed of 18 places in 16 ms
Reduce places removed 18 places and 0 transitions.
Iterating global reduction 4 with 36 rules applied. Total rules applied 81 place count 1510 transition count 2373
Discarding 3 places :
Symmetric choice reduction at 4 with 3 rule applications. Total rules 84 place count 1507 transition count 2370
Iterating global reduction 4 with 3 rules applied. Total rules applied 87 place count 1507 transition count 2370
Free-agglomeration rule applied 5 times.
Iterating global reduction 4 with 5 rules applied. Total rules applied 92 place count 1507 transition count 2365
Reduce places removed 5 places and 0 transitions.
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 4 with 6 rules applied. Total rules applied 98 place count 1502 transition count 2364
Partial Free-agglomeration rule applied 2 times.
Drop transitions (Partial Free agglomeration) removed 2 transitions
Iterating global reduction 5 with 2 rules applied. Total rules applied 100 place count 1502 transition count 2364
Applied a total of 100 rules in 451 ms. Remains 1502 /1556 variables (removed 54) and now considering 2364/2418 (removed 54) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 451 ms. Remains : 1502/1556 places, 2364/2418 transitions.
SDD proceeding with computation,1231 properties remain. new max is 256
SDD size :1.39738e+27 after 1.42229e+27
Invariant property smplace_1448 does not hold.
Invariant property smplace_1447 does not hold.
Invariant property smplace_1446 does not hold.
Invariant property smplace_1445 does not hold.
Invariant property smplace_1444 does not hold.
Invariant property smplace_1443 does not hold.
Invariant property smplace_1442 does not hold.
Invariant property smplace_1441 does not hold.
Invariant property smplace_1440 does not hold.
Invariant property smplace_1439 does not hold.
Invariant property smplace_1438 does not hold.
Invariant property smplace_1437 does not hold.
Invariant property smplace_1395 does not hold.
Invariant property smplace_1390 does not hold.
Invariant property smplace_1366 does not hold.
Invariant property smplace_1280 does not hold.
Invariant property smplace_1264 does not hold.
Invariant property smplace_1263 does not hold.
Invariant property smplace_1262 does not hold.
Invariant property smplace_1261 does not hold.
Invariant property smplace_1259 does not hold.
Invariant property smplace_1258 does not hold.
Invariant property smplace_1257 does not hold.
Invariant property smplace_1256 does not hold.
Invariant property smplace_1255 does not hold.
Invariant property smplace_1254 does not hold.
Invariant property smplace_1253 does not hold.
Invariant property smplace_1252 does not hold.
Invariant property smplace_1251 does not hold.
Invariant property smplace_1250 does not hold.
Invariant property smplace_1249 does not hold.
Invariant property smplace_1248 does not hold.
Invariant property smplace_1247 does not hold.
Invariant property smplace_1246 does not hold.
Invariant property smplace_1245 does not hold.
Invariant property smplace_1244 does not hold.
Invariant property smplace_1243 does not hold.
Invariant property smplace_1242 does not hold.
Invariant property smplace_1217 does not hold.
Invariant property smplace_1216 does not hold.
Invariant property smplace_1215 does not hold.
Invariant property smplace_1214 does not hold.
Invariant property smplace_1213 does not hold.
Invariant property smplace_1212 does not hold.
Invariant property smplace_1211 does not hold.
Invariant property smplace_1210 does not hold.
Invariant property smplace_1209 does not hold.
Invariant property smplace_1208 does not hold.
Invariant property smplace_1207 does not hold.
Invariant property smplace_1206 does not hold.
Invariant property smplace_1205 does not hold.
Invariant property smplace_1204 does not hold.
Invariant property smplace_1200 does not hold.
Invariant property smplace_1171 does not hold.
Invariant property smplace_1085 does not hold.
Invariant property smplace_1069 does not hold.
Invariant property smplace_1068 does not hold.
Invariant property smplace_1067 does not hold.
Invariant property smplace_1066 does not hold.
Invariant property smplace_1063 does not hold.
Invariant property smplace_1062 does not hold.
Invariant property smplace_1061 does not hold.
Invariant property smplace_1060 does not hold.
Invariant property smplace_1059 does not hold.
Invariant property smplace_1058 does not hold.
Invariant property smplace_1057 does not hold.
Invariant property smplace_1056 does not hold.
Invariant property smplace_1055 does not hold.
Invariant property smplace_1054 does not hold.
Invariant property smplace_1053 does not hold.
Invariant property smplace_1052 does not hold.
Invariant property smplace_1051 does not hold.
Invariant property smplace_1050 does not hold.
Invariant property smplace_1049 does not hold.
Invariant property smplace_1048 does not hold.
Invariant property smplace_1047 does not hold.
Invariant property smplace_1026 does not hold.
Invariant property smplace_1025 does not hold.
Invariant property smplace_1024 does not hold.
Invariant property smplace_1023 does not hold.
Invariant property smplace_1022 does not hold.
Invariant property smplace_1021 does not hold.
Invariant property smplace_1020 does not hold.
Invariant property smplace_1019 does not hold.
Invariant property smplace_1018 does not hold.
Invariant property smplace_1017 does not hold.
Invariant property smplace_1016 does not hold.
Invariant property smplace_1015 does not hold.
Invariant property smplace_1014 does not hold.
Invariant property smplace_1013 does not hold.
Invariant property smplace_1012 does not hold.
Invariant property smplace_1011 does not hold.
Invariant property smplace_1010 does not hold.
Invariant property smplace_1009 does not hold.
Invariant property smplace_1005 does not hold.
Invariant property smplace_976 does not hold.
Invariant property smplace_890 does not hold.
Invariant property smplace_874 does not hold.
Invariant property smplace_873 does not hold.
Invariant property smplace_872 does not hold.
Invariant property smplace_871 does not hold.
Invariant property smplace_868 does not hold.
Invariant property smplace_867 does not hold.
Invariant property smplace_866 does not hold.
Invariant property smplace_865 does not hold.
Invariant property smplace_864 does not hold.
Invariant property smplace_863 does not hold.
Invariant property smplace_862 does not hold.
Invariant property smplace_861 does not hold.
Invariant property smplace_860 does not hold.
Invariant property smplace_859 does not hold.
Invariant property smplace_858 does not hold.
Invariant property smplace_857 does not hold.
Invariant property smplace_856 does not hold.
Invariant property smplace_855 does not hold.
Invariant property smplace_854 does not hold.
Invariant property smplace_853 does not hold.
Invariant property smplace_831 does not hold.
Invariant property smplace_830 does not hold.
Invariant property smplace_829 does not hold.
Invariant property smplace_828 does not hold.
Invariant property smplace_827 does not hold.
Invariant property smplace_826 does not hold.
Invariant property smplace_825 does not hold.
Invariant property smplace_824 does not hold.
Invariant property smplace_823 does not hold.
Invariant property smplace_822 does not hold.
Invariant property smplace_821 does not hold.
Invariant property smplace_820 does not hold.
Invariant property smplace_819 does not hold.
Invariant property smplace_818 does not hold.
Invariant property smplace_817 does not hold.
Invariant property smplace_816 does not hold.
Invariant property smplace_815 does not hold.
Invariant property smplace_814 does not hold.
Invariant property smplace_636 does not hold.
Invariant property smplace_635 does not hold.
Invariant property smplace_634 does not hold.
Invariant property smplace_633 does not hold.
Invariant property smplace_632 does not hold.
Invariant property smplace_631 does not hold.
Invariant property smplace_630 does not hold.
Invariant property smplace_629 does not hold.
Invariant property smplace_628 does not hold.
Invariant property smplace_627 does not hold.
Invariant property smplace_626 does not hold.
Invariant property smplace_625 does not hold.
Invariant property smplace_624 does not hold.
Invariant property smplace_623 does not hold.
Invariant property smplace_622 does not hold.
SDD proceeding with computation,1081 properties remain. new max is 256
SDD size :1.42229e+27 after 1.42229e+27
Invariant property smplace_852 does not hold.
Invariant property smplace_781 does not hold.
Invariant property smplace_780 does not hold.
Invariant property smplace_779 does not hold.
Invariant property smplace_778 does not hold.
Invariant property smplace_621 does not hold.
Invariant property smplace_620 does not hold.
SDD proceeding with computation,1074 properties remain. new max is 256
SDD size :1.42229e+27 after 1.42229e+27
SDD proceeding with computation,1074 properties remain. new max is 512
SDD size :1.42229e+27 after 1.42229e+27
Invariant property smplace_695 does not hold.
Invariant property smplace_694 does not hold.
Invariant property smplace_679 does not hold.
Invariant property smplace_619 does not hold.
SDD proceeding with computation,1070 properties remain. new max is 512
SDD size :1.42229e+27 after 1.42229e+27
Invariant property smplace_810 does not hold.
Invariant property smplace_678 does not hold.
Invariant property smplace_677 does not hold.
Invariant property smplace_676 does not hold.
Invariant property smplace_673 does not hold.
Invariant property smplace_672 does not hold.
Invariant property smplace_671 does not hold.
Invariant property smplace_670 does not hold.
Invariant property smplace_669 does not hold.
Invariant property smplace_668 does not hold.
Invariant property smplace_667 does not hold.
Invariant property smplace_666 does not hold.
Invariant property smplace_665 does not hold.
Invariant property smplace_664 does not hold.
Invariant property smplace_663 does not hold.
Invariant property smplace_662 does not hold.
Invariant property smplace_661 does not hold.
Invariant property smplace_660 does not hold.
Invariant property smplace_659 does not hold.
Invariant property smplace_658 does not hold.
Invariant property smplace_657 does not hold.
Invariant property smplace_586 does not hold.
Invariant property smplace_585 does not hold.
Invariant property smplace_584 does not hold.
Invariant property smplace_583 does not hold.
Invariant property smplace_441 does not hold.
Invariant property smplace_440 does not hold.
Invariant property smplace_439 does not hold.
Invariant property smplace_438 does not hold.
Invariant property smplace_437 does not hold.
Invariant property smplace_436 does not hold.
Invariant property smplace_435 does not hold.
Invariant property smplace_434 does not hold.
Invariant property smplace_433 does not hold.
Invariant property smplace_432 does not hold.
Invariant property smplace_431 does not hold.
Invariant property smplace_430 does not hold.
Invariant property smplace_429 does not hold.
Invariant property smplace_428 does not hold.
Invariant property smplace_427 does not hold.
Invariant property smplace_426 does not hold.
Invariant property smplace_425 does not hold.
SDD proceeding with computation,1028 properties remain. new max is 512
SDD size :1.42229e+27 after 1.42229e+27
Invariant property smplace_500 does not hold.
Invariant property smplace_499 does not hold.
SDD proceeding with computation,1026 properties remain. new max is 512
SDD size :1.42229e+27 after 1.42229e+27
RANDOM walk for 2464816 steps (22692 resets) in 120004 ms. (20 steps per ms) remains 564/567 properties
BEST_FIRST walk for 4004 steps (8 resets) in 21 ms. (182 steps per ms) remains 564/564 properties
BEST_FIRST walk for 4004 steps (8 resets) in 17 ms. (222 steps per ms) remains 564/564 properties
BEST_FIRST walk for 4004 steps (8 resets) in 21 ms. (182 steps per ms) remains 564/564 properties
BEST_FIRST walk for 4003 steps (8 resets) in 21 ms. (181 steps per ms) remains 564/564 properties
BEST_FIRST walk for 4004 steps (8 resets) in 17 ms. (222 steps per ms) remains 564/564 properties
BEST_FIRST walk for 4004 steps (8 resets) in 18 ms. (210 steps per ms) remains 564/564 properties
BEST_FIRST walk for 4004 steps (8 resets) in 22 ms. (174 steps per ms) remains 564/564 properties
BEST_FIRST walk for 4004 steps (8 resets) in 18 ms. (210 steps per ms) remains 564/564 properties
BEST_FIRST walk for 4004 steps (8 resets) in 20 ms. (190 steps per ms) remains 564/564 properties
BEST_FIRST walk for 4004 steps (8 resets) in 17 ms. (222 steps per ms) remains 564/564 properties
BEST_FIRST walk for 4004 steps (8 resets) in 17 ms. (222 steps per ms) remains 564/564 properties
BEST_FIRST walk for 4004 steps (8 resets) in 18 ms. (210 steps per ms) remains 564/564 properties
BEST_FIRST walk for 4004 steps (8 resets) in 23 ms. (166 steps per ms) remains 564/564 properties
BEST_FIRST walk for 4004 steps (8 resets) in 16 ms. (235 steps per ms) remains 564/564 properties
BEST_FIRST walk for 4004 steps (8 resets) in 21 ms. (182 steps per ms) remains 564/564 properties
BEST_FIRST walk for 4003 steps (8 resets) in 19 ms. (200 steps per ms) remains 564/564 properties
BEST_FIRST walk for 4004 steps (8 resets) in 17 ms. (222 steps per ms) remains 564/564 properties
BEST_FIRST walk for 4004 steps (8 resets) in 19 ms. (200 steps per ms) remains 564/564 properties
BEST_FIRST walk for 4004 steps (8 resets) in 17 ms. (222 steps per ms) remains 564/564 properties
BEST_FIRST walk for 4004 steps (8 resets) in 17 ms. (222 steps per ms) remains 564/564 properties
BEST_FIRST walk for 4004 steps (8 resets) in 20 ms. (190 steps per ms) remains 564/564 properties
BEST_FIRST walk for 4004 steps (8 resets) in 19 ms. (200 steps per ms) remains 564/564 properties
BEST_FIRST walk for 4004 steps (8 resets) in 19 ms. (200 steps per ms) remains 564/564 properties
BEST_FIRST walk for 4002 steps (8 resets) in 18 ms. (210 steps per ms) remains 564/564 properties
BEST_FIRST walk for 4004 steps (8 resets) in 18 ms. (210 steps per ms) remains 564/564 properties
BEST_FIRST walk for 4004 steps (8 resets) in 17 ms. (222 steps per ms) remains 564/564 properties
BEST_FIRST walk for 4004 steps (8 resets) in 18 ms. (210 steps per ms) remains 564/564 properties
BEST_FIRST walk for 4002 steps (8 resets) in 18 ms. (210 steps per ms) remains 564/564 properties
BEST_FIRST walk for 4004 steps (8 resets) in 19 ms. (200 steps per ms) remains 564/564 properties
BEST_FIRST walk for 4004 steps (8 resets) in 20 ms. (190 steps per ms) remains 564/564 properties
BEST_FIRST walk for 4004 steps (8 resets) in 19 ms. (200 steps per ms) remains 564/564 properties
BEST_FIRST walk for 4004 steps (8 resets) in 22 ms. (174 steps per ms) remains 564/564 properties
BEST_FIRST walk for 4004 steps (8 resets) in 17 ms. (222 steps per ms) remains 564/564 properties
BEST_FIRST walk for 4003 steps (8 resets) in 19 ms. (200 steps per ms) remains 564/564 properties
BEST_FIRST walk for 4004 steps (8 resets) in 18 ms. (210 steps per ms) remains 564/564 properties
BEST_FIRST walk for 4004 steps (8 resets) in 17 ms. (222 steps per ms) remains 564/564 properties
BEST_FIRST walk for 4004 steps (8 resets) in 21 ms. (182 steps per ms) remains 564/564 properties
BEST_FIRST walk for 4004 steps (8 resets) in 18 ms. (210 steps per ms) remains 564/564 properties
BEST_FIRST walk for 4004 steps (8 resets) in 20 ms. (190 steps per ms) remains 564/564 properties
BEST_FIRST walk for 4004 steps (8 resets) in 21 ms. (182 steps per ms) remains 564/564 properties
BEST_FIRST walk for 4004 steps (8 resets) in 22 ms. (174 steps per ms) remains 564/564 properties
BEST_FIRST walk for 4004 steps (8 resets) in 18 ms. (210 steps per ms) remains 564/564 properties
BEST_FIRST walk for 4003 steps (8 resets) in 20 ms. (190 steps per ms) remains 564/564 properties
BEST_FIRST walk for 4004 steps (8 resets) in 16 ms. (235 steps per ms) remains 564/564 properties
BEST_FIRST walk for 4003 steps (8 resets) in 18 ms. (210 steps per ms) remains 564/564 properties
BEST_FIRST walk for 4004 steps (8 resets) in 18 ms. (210 steps per ms) remains 564/564 properties
BEST_FIRST walk for 4004 steps (8 resets) in 17 ms. (222 steps per ms) remains 564/564 properties
BEST_FIRST walk for 4004 steps (8 resets) in 19 ms. (200 steps per ms) remains 564/564 properties
BEST_FIRST walk for 4004 steps (8 resets) in 17 ms. (222 steps per ms) remains 564/564 properties
BEST_FIRST walk for 4004 steps (8 resets) in 17 ms. (222 steps per ms) remains 564/564 properties
SDD proceeding with computation,1026 properties remain. new max is 1024
SDD size :1.42229e+27 after 1.42229e+27
Invariant property smplace_484 does not hold.
Invariant property smplace_424 does not hold.
SDD proceeding with computation,1024 properties remain. new max is 1024
SDD size :1.42229e+27 after 1.42229e+27
Invariant property smplace_615 does not hold.
Invariant property smplace_483 does not hold.
Invariant property smplace_482 does not hold.
Invariant property smplace_481 does not hold.
Invariant property smplace_478 does not hold.
Invariant property smplace_477 does not hold.
Invariant property smplace_476 does not hold.
Invariant property smplace_475 does not hold.
Invariant property smplace_474 does not hold.
Invariant property smplace_473 does not hold.
Invariant property smplace_472 does not hold.
Invariant property smplace_471 does not hold.
Invariant property smplace_470 does not hold.
Invariant property smplace_469 does not hold.
Invariant property smplace_468 does not hold.
Invariant property smplace_467 does not hold.
Invariant property smplace_466 does not hold.
Invariant property smplace_465 does not hold.
Invariant property smplace_464 does not hold.
Invariant property smplace_463 does not hold.
Invariant property smplace_462 does not hold.
Invariant property smplace_391 does not hold.
Invariant property smplace_246 does not hold.
Invariant property smplace_245 does not hold.
Invariant property smplace_244 does not hold.
Invariant property smplace_243 does not hold.
Invariant property smplace_242 does not hold.
Invariant property smplace_241 does not hold.
Invariant property smplace_240 does not hold.
Invariant property smplace_239 does not hold.
Invariant property smplace_238 does not hold.
Invariant property smplace_237 does not hold.
Invariant property smplace_236 does not hold.
Invariant property smplace_235 does not hold.
Invariant property smplace_234 does not hold.
Invariant property smplace_233 does not hold.
Invariant property smplace_232 does not hold.
Invariant property smplace_231 does not hold.
Invariant property smplace_230 does not hold.
SDD proceeding with computation,985 properties remain. new max is 1024
SDD size :1.42229e+27 after 1.42229e+27
Invariant property smplace_390 does not hold.
Invariant property smplace_389 does not hold.
Invariant property smplace_388 does not hold.
Invariant property smplace_305 does not hold.
Invariant property smplace_304 does not hold.
Invariant property smplace_289 does not hold.
Invariant property smplace_229 does not hold.
SDD proceeding with computation,978 properties remain. new max is 1024
SDD size :1.42229e+27 after 1.42229e+27
Invariant property smplace_420 does not hold.
Invariant property smplace_397 does not hold.
Invariant property smplace_396 does not hold.
Invariant property smplace_392 does not hold.
Invariant property smplace_288 does not hold.
Invariant property smplace_287 does not hold.
Invariant property smplace_286 does not hold.
Invariant property smplace_283 does not hold.
Invariant property smplace_282 does not hold.
Invariant property smplace_281 does not hold.
Invariant property smplace_280 does not hold.
Invariant property smplace_279 does not hold.
Invariant property smplace_278 does not hold.
Invariant property smplace_277 does not hold.
Invariant property smplace_276 does not hold.
Invariant property smplace_275 does not hold.
Invariant property smplace_274 does not hold.
Invariant property smplace_273 does not hold.
Invariant property smplace_272 does not hold.
Invariant property smplace_271 does not hold.
Invariant property smplace_270 does not hold.
Invariant property smplace_269 does not hold.
Invariant property smplace_268 does not hold.
Invariant property smplace_267 does not hold.
Invariant property smplace_111 does not hold.
Invariant property smplace_110 does not hold.
Invariant property smplace_52 does not hold.
Invariant property smplace_51 does not hold.
Invariant property smplace_50 does not hold.
Invariant property smplace_49 does not hold.
Invariant property smplace_48 does not hold.
Invariant property smplace_47 does not hold.
Invariant property smplace_46 does not hold.
Invariant property smplace_45 does not hold.
Invariant property smplace_44 does not hold.
Invariant property smplace_43 does not hold.
Invariant property smplace_42 does not hold.
Invariant property smplace_41 does not hold.
Invariant property smplace_40 does not hold.
Invariant property smplace_39 does not hold.
Invariant property smplace_38 does not hold.
Invariant property smplace_37 does not hold.
Invariant property smplace_36 does not hold.
SDD proceeding with computation,935 properties remain. new max is 1024
SDD size :1.42229e+27 after 1.42229e+27
Invariant property smplace_613 does not hold.
Invariant property smplace_592 does not hold.
Invariant property smplace_591 does not hold.
Invariant property smplace_590 does not hold.
Invariant property smplace_589 does not hold.
Invariant property smplace_588 does not hold.
Invariant property smplace_587 does not hold.
Invariant property smplace_480 does not hold.
Invariant property smplace_418 does not hold.
Invariant property smplace_415 does not hold.
Invariant property smplace_395 does not hold.
Invariant property smplace_394 does not hold.
Invariant property smplace_393 does not hold.
Invariant property smplace_285 does not hold.
Invariant property smplace_284 does not hold.
SDD proceeding with computation,920 properties remain. new max is 1024
SDD size :1.42229e+27 after 1.42229e+27
Invariant property smplace_610 does not hold.
Invariant property smplace_479 does not hold.
SDD proceeding with computation,918 properties remain. new max is 1024
SDD size :1.42229e+27 after 1.42229e+27
Probabilistic random walk after 1000001 steps, saw 359452 distinct states, run finished after 44594 ms. (steps per millisecond=22 ) properties seen :17
// Phase 1: matrix 2364 rows 1502 cols
[2026-05-25 05:58:25] [INFO ] Computed 287 invariants in 24 ms
Starting Z3 with timeout 75.0 s and query timeout 7500.0 ms
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/260 variables, 6/6 constraints. Problems are: Problem set: 0 solved, 260 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/260 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 260 unsolved
At refinement iteration 2 (OVERLAPS) 87/347 variables, 55/61 constraints. Problems are: Problem set: 0 solved, 260 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/347 variables, 6/67 constraints. Problems are: Problem set: 0 solved, 260 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/347 variables, 0/67 constraints. Problems are: Problem set: 0 solved, 260 unsolved
At refinement iteration 5 (OVERLAPS) 4/351 variables, 4/71 constraints. Problems are: Problem set: 0 solved, 260 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/351 variables, 0/71 constraints. Problems are: Problem set: 0 solved, 260 unsolved
At refinement iteration 7 (OVERLAPS) 633/984 variables, 84/155 constraints. Problems are: Problem set: 0 solved, 260 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/984 variables, 0/155 constraints. Problems are: Problem set: 0 solved, 260 unsolved
At refinement iteration 9 (OVERLAPS) 36/1020 variables, 23/178 constraints. Problems are: Problem set: 0 solved, 260 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/1020 variables, 0/178 constraints. Problems are: Problem set: 0 solved, 260 unsolved
At refinement iteration 11 (OVERLAPS) 235/1255 variables, 53/231 constraints. Problems are: Problem set: 0 solved, 260 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/1255 variables, 0/231 constraints. Problems are: Problem set: 0 solved, 260 unsolved
At refinement iteration 13 (OVERLAPS) 11/1266 variables, 8/239 constraints. Problems are: Problem set: 0 solved, 260 unsolved
SDD proceeding with computation,918 properties remain. new max is 2048
SDD size :1.42229e+27 after 1.42229e+27
At refinement iteration 14 (INCLUDED_ONLY) 0/1266 variables, 0/239 constraints. Problems are: Problem set: 0 solved, 260 unsolved
At refinement iteration 15 (OVERLAPS) 74/1340 variables, 11/250 constraints. Problems are: Problem set: 0 solved, 260 unsolved
Invariant property smplace_225 does not hold.
Invariant property smplace_223 does not hold.
Invariant property smplace_220 does not hold.
Invariant property smplace_203 does not hold.
Invariant property smplace_202 does not hold.
Invariant property smplace_201 does not hold.
Invariant property smplace_200 does not hold.
Invariant property smplace_199 does not hold.
Invariant property smplace_198 does not hold.
Invariant property smplace_197 does not hold.
Invariant property smplace_196 does not hold.
Invariant property smplace_195 does not hold.
Invariant property smplace_194 does not hold.
At refinement iteration 16 (INCLUDED_ONLY) 0/1340 variables, 0/250 constraints. Problems are: Problem set: 13 solved, 247 unsolved
At refinement iteration 17 (OVERLAPS) 59/1399 variables, 7/257 constraints. Problems are: Problem set: 13 solved, 247 unsolved
Invariant property smplace_95 does not hold.
Invariant property smplace_94 does not hold.
Invariant property smplace_93 does not hold.
Invariant property smplace_92 does not hold.
Invariant property smplace_91 does not hold.
Invariant property smplace_90 does not hold.
Invariant property smplace_89 does not hold.
Invariant property smplace_88 does not hold.
Invariant property smplace_87 does not hold.
Invariant property smplace_86 does not hold.
Invariant property smplace_85 does not hold.
Invariant property smplace_84 does not hold.
Invariant property smplace_83 does not hold.
Invariant property smplace_82 does not hold.
Invariant property smplace_81 does not hold.
Invariant property smplace_80 does not hold.
Invariant property smplace_79 does not hold.
Invariant property smplace_78 does not hold.
Invariant property smplace_77 does not hold.
Invariant property smplace_76 does not hold.
Invariant property smplace_75 does not hold.
Invariant property smplace_74 does not hold.
Invariant property smplace_73 does not hold.
Invariant property smplace_35 does not hold.
Invariant property smplace_17 does not hold.
Invariant property smplace_16 does not hold.
Invariant property smplace_15 does not hold.
Invariant property smplace_14 does not hold.
Invariant property smplace_13 does not hold.
Invariant property smplace_12 does not hold.
Invariant property smplace_11 does not hold.
Invariant property smplace_10 does not hold.
Invariant property smplace_9 does not hold.
Invariant property smplace_8 does not hold.
Invariant property smplace_7 does not hold.
Invariant property smplace_6 does not hold.
Invariant property smplace_5 does not hold.
Invariant property smplace_4 does not hold.
Invariant property smplace_3 does not hold.
Invariant property smplace_2 does not hold.
SDD proceeding with computation,865 properties remain. new max is 2048
SDD size :1.42229e+27 after 1.42229e+27
At refinement iteration 18 (INCLUDED_ONLY) 0/1399 variables, 0/257 constraints. Problems are: Problem set: 53 solved, 207 unsolved
At refinement iteration 19 (OVERLAPS) 1/1400 variables, 1/258 constraints. Problems are: Problem set: 53 solved, 207 unsolved
Invariant property smplace_34 does not hold.
Invariant property smplace_33 does not hold.
Invariant property smplace_32 does not hold.
Invariant property smplace_31 does not hold.
Invariant property smplace_23 does not hold.
Invariant property smplace_19 does not hold.
Invariant property smplace_1 does not hold.
SDD proceeding with computation,858 properties remain. new max is 2048
SDD size :1.42229e+27 after 1.42229e+27
At refinement iteration 20 (INCLUDED_ONLY) 0/1400 variables, 0/258 constraints. Problems are: Problem set: 60 solved, 200 unsolved
At refinement iteration 21 (OVERLAPS) 99/1499 variables, 26/284 constraints. Problems are: Problem set: 60 solved, 200 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/1499 variables, 0/284 constraints. Problems are: Problem set: 60 solved, 200 unsolved
At refinement iteration 23 (OVERLAPS) 1/1500 variables, 1/285 constraints. Problems are: Problem set: 60 solved, 200 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 1500/3866 variables, and 285 constraints, problems are : Problem set: 60 solved, 200 unsolved in 75018 ms.
Refiners :[Positive P Invariants (semi-flows): 99/99 constraints, Generalized P Invariants (flows): 186/188 constraints, State Equation: 0/1502 constraints, PredecessorRefiner: 260/260 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 60 solved, 200 unsolved
Starting Z3 with timeout 75.0 s and query timeout 7500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/200 variables, 1/1 constraints. Problems are: Problem set: 60 solved, 200 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/200 variables, 0/1 constraints. Problems are: Problem set: 60 solved, 200 unsolved
At refinement iteration 2 (OVERLAPS) 90/290 variables, 51/52 constraints. Problems are: Problem set: 60 solved, 200 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/290 variables, 5/57 constraints. Problems are: Problem set: 60 solved, 200 unsolved
SDD proceeding with computation,858 properties remain. new max is 4096
SDD size :1.42229e+27 after 1.42229e+27
At refinement iteration 4 (INCLUDED_ONLY) 0/290 variables, 0/57 constraints. Problems are: Problem set: 60 solved, 200 unsolved
At refinement iteration 5 (OVERLAPS) 5/295 variables, 5/62 constraints. Problems are: Problem set: 60 solved, 200 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/295 variables, 0/62 constraints. Problems are: Problem set: 60 solved, 200 unsolved
At refinement iteration 7 (OVERLAPS) 670/965 variables, 88/150 constraints. Problems are: Problem set: 60 solved, 200 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 05:59:51] [INFO ] Deduced a trap composed of 22 places in 269 ms of which 27 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 05:59:51] [INFO ] Deduced a trap composed of 22 places in 307 ms of which 34 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 05:59:57] [INFO ] Deduced a trap composed of 26 places in 236 ms of which 15 ms to minimize.
SDD proceeding with computation,858 properties remain. new max is 8192
SDD size :1.42229e+27 after 1.42229e+27
At refinement iteration 8 (INCLUDED_ONLY) 0/965 variables, 3/153 constraints. Problems are: Problem set: 60 solved, 200 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/965 variables, 0/153 constraints. Problems are: Problem set: 60 solved, 200 unsolved
At refinement iteration 10 (OVERLAPS) 39/1004 variables, 26/179 constraints. Problems are: Problem set: 60 solved, 200 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 06:00:14] [INFO ] Deduced a trap composed of 24 places in 261 ms of which 19 ms to minimize.
Invariant property smplace_982 does not hold.
Invariant property smplace_981 does not hold.
Invariant property smplace_977 does not hold.
Invariant property smplace_870 does not hold.
Invariant property smplace_808 does not hold.
Invariant property smplace_805 does not hold.
Invariant property smplace_787 does not hold.
Invariant property smplace_786 does not hold.
Invariant property smplace_785 does not hold.
Invariant property smplace_784 does not hold.
Invariant property smplace_783 does not hold.
Invariant property smplace_782 does not hold.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
Invariant property smplace_675 does not hold.
Invariant property smplace_674 does not hold.
[2026-05-25 06:00:16] [INFO ] Deduced a trap composed of 26 places in 164 ms of which 9 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 06:00:17] [INFO ] Deduced a trap composed of 26 places in 180 ms of which 12 ms to minimize.
SDD proceeding with computation,844 properties remain. new max is 8192
SDD size :1.42229e+27 after 1.42229e+27
At refinement iteration 11 (INCLUDED_ONLY) 0/1004 variables, 3/182 constraints. Problems are: Problem set: 74 solved, 186 unsolved
Invariant property smplace_1588 does not hold.
Invariant property smplace_1567 does not hold.
Invariant property smplace_1566 does not hold.
Invariant property smplace_1565 does not hold.
Invariant property smplace_1564 does not hold.
Invariant property smplace_1563 does not hold.
Invariant property smplace_1562 does not hold.
Invariant property smplace_1560 does not hold.
Invariant property smplace_1559 does not hold.
Invariant property smplace_1558 does not hold.
Invariant property smplace_1474 does not hold.
Invariant property smplace_1455 does not hold.
Invariant property smplace_1393 does not hold.
Invariant property smplace_1372 does not hold.
Invariant property smplace_1371 does not hold.
Invariant property smplace_1370 does not hold.
Invariant property smplace_1369 does not hold.
Invariant property smplace_1368 does not hold.
Invariant property smplace_1367 does not hold.
Invariant property smplace_1365 does not hold.
Invariant property smplace_1364 does not hold.
Invariant property smplace_1363 does not hold.
Invariant property smplace_1279 does not hold.
Invariant property smplace_1260 does not hold.
Invariant property smplace_1198 does not hold.
Invariant property smplace_1195 does not hold.
Invariant property smplace_1177 does not hold.
Invariant property smplace_1176 does not hold.
Invariant property smplace_1175 does not hold.
Invariant property smplace_1174 does not hold.
Invariant property smplace_1173 does not hold.
Invariant property smplace_1172 does not hold.
Invariant property smplace_1170 does not hold.
Invariant property smplace_1169 does not hold.
Invariant property smplace_1168 does not hold.
Invariant property smplace_1084 does not hold.
Invariant property smplace_1065 does not hold.
Invariant property smplace_1064 does not hold.
Invariant property smplace_1003 does not hold.
Invariant property smplace_1000 does not hold.
Invariant property smplace_980 does not hold.
Invariant property smplace_979 does not hold.
Invariant property smplace_978 does not hold.
Invariant property smplace_975 does not hold.
Invariant property smplace_974 does not hold.
Invariant property smplace_973 does not hold.
Invariant property smplace_889 does not hold.
Invariant property smplace_869 does not hold.
At refinement iteration 12 (INCLUDED_ONLY) 0/1004 variables, 0/182 constraints. Problems are: Problem set: 114 solved, 146 unsolved
At refinement iteration 13 (OVERLAPS) 251/1255 variables, 55/237 constraints. Problems are: Problem set: 114 solved, 146 unsolved
SDD proceeding with computation,796 properties remain. new max is 8192
SDD size :1.42229e+27 after 1.42242e+27
At refinement iteration 14 (INCLUDED_ONLY) 0/1255 variables, 0/237 constraints. Problems are: Problem set: 114 solved, 146 unsolved
At refinement iteration 15 (OVERLAPS) 11/1266 variables, 8/245 constraints. Problems are: Problem set: 114 solved, 146 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1266/3866 variables, and 245 constraints, problems are : Problem set: 114 solved, 146 unsolved in 75030 ms.
Refiners :[Positive P Invariants (semi-flows): 90/99 constraints, Generalized P Invariants (flows): 149/188 constraints, State Equation: 0/1502 constraints, PredecessorRefiner: 0/260 constraints, Known Traps: 6/6 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 150169ms problems are : Problem set: 114 solved, 146 unsolved
Skipping Parikh replay, no witness traces provided.
Support contains 146 out of 1502 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 1502/1502 places, 2364/2364 transitions.
Ensure Unique test removed 22 places
Drop transitions (Trivial Post-Agglo cleanup.) removed 31 transitions
Trivial Post-agglo rules discarded 31 transitions
Performed 31 trivial Post agglomeration. Transition count delta: 31
Iterating post reduction 0 with 53 rules applied. Total rules applied 53 place count 1480 transition count 2333
Reduce places removed 45 places and 0 transitions.
Iterating post reduction 1 with 45 rules applied. Total rules applied 98 place count 1435 transition count 2333
Performed 31 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 31 Pre rules applied. Total rules applied 98 place count 1435 transition count 2302
Deduced a syphon composed of 31 places in 6 ms
Ensure Unique test removed 2 places
Reduce places removed 33 places and 0 transitions.
Iterating global reduction 2 with 64 rules applied. Total rules applied 162 place count 1402 transition count 2302
Discarding 7 places :
Implicit places reduction removed 7 places
Iterating post reduction 2 with 7 rules applied. Total rules applied 169 place count 1395 transition count 2302
Discarding 8 places :
Symmetric choice reduction at 3 with 8 rule applications. Total rules 177 place count 1387 transition count 2259
Ensure Unique test removed 1 places
Iterating global reduction 3 with 9 rules applied. Total rules applied 186 place count 1386 transition count 2259
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Discarding 7 places :
Implicit places reduction removed 7 places
Drop transitions (Trivial Post-Agglo cleanup.) removed 1 transitions
Trivial Post-agglo rules discarded 1 transitions
Performed 1 trivial Post agglomeration. Transition count delta: 1
Iterating post reduction 3 with 9 rules applied. Total rules applied 195 place count 1379 transition count 2257
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 4 with 1 rules applied. Total rules applied 196 place count 1378 transition count 2257
Performed 18 Post agglomeration using F-continuation condition.Transition count delta: 18
Deduced a syphon composed of 18 places in 4 ms
Reduce places removed 18 places and 0 transitions.
Iterating global reduction 5 with 36 rules applied. Total rules applied 232 place count 1360 transition count 2239
Discarding 14 places :
Symmetric choice reduction at 5 with 14 rule applications. Total rules 246 place count 1346 transition count 2225
Iterating global reduction 5 with 14 rules applied. Total rules applied 260 place count 1346 transition count 2225
Free-agglomeration rule applied 14 times.
Iterating global reduction 5 with 14 rules applied. Total rules applied 274 place count 1346 transition count 2211
Reduce places removed 14 places and 0 transitions.
Ensure Unique test removed 7 transitions
Reduce isomorphic transitions removed 7 transitions.
Iterating post reduction 5 with 21 rules applied. Total rules applied 295 place count 1332 transition count 2204
Partial Free-agglomeration rule applied 8 times.
Drop transitions (Partial Free agglomeration) removed 8 transitions
Iterating global reduction 6 with 8 rules applied. Total rules applied 303 place count 1332 transition count 2204
Applied a total of 303 rules in 420 ms. Remains 1332 /1502 variables (removed 170) and now considering 2204/2364 (removed 160) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 421 ms. Remains : 1332/1502 places, 2204/2364 transitions.
RANDOM walk for 4000000 steps (39554 resets) in 75652 ms. (52 steps per ms) remains 143/146 properties
BEST_FIRST walk for 40003 steps (42 resets) in 171 ms. (232 steps per ms) remains 143/143 properties
BEST_FIRST walk for 40003 steps (42 resets) in 180 ms. (221 steps per ms) remains 143/143 properties
BEST_FIRST walk for 40004 steps (40 resets) in 186 ms. (213 steps per ms) remains 143/143 properties
BEST_FIRST walk for 40003 steps (41 resets) in 172 ms. (231 steps per ms) remains 143/143 properties
BEST_FIRST walk for 40004 steps (41 resets) in 188 ms. (211 steps per ms) remains 143/143 properties
BEST_FIRST walk for 40002 steps (41 resets) in 156 ms. (254 steps per ms) remains 143/143 properties
BEST_FIRST walk for 40004 steps (44 resets) in 194 ms. (205 steps per ms) remains 143/143 properties
BEST_FIRST walk for 40004 steps (43 resets) in 180 ms. (221 steps per ms) remains 143/143 properties
BEST_FIRST walk for 40004 steps (40 resets) in 165 ms. (240 steps per ms) remains 143/143 properties
BEST_FIRST walk for 40003 steps (40 resets) in 203 ms. (196 steps per ms) remains 143/143 properties
BEST_FIRST walk for 40004 steps (40 resets) in 162 ms. (245 steps per ms) remains 143/143 properties
BEST_FIRST walk for 40004 steps (43 resets) in 162 ms. (245 steps per ms) remains 143/143 properties
BEST_FIRST walk for 40003 steps (41 resets) in 189 ms. (210 steps per ms) remains 143/143 properties
BEST_FIRST walk for 40004 steps (42 resets) in 209 ms. (190 steps per ms) remains 143/143 properties
BEST_FIRST walk for 40004 steps (42 resets) in 228 ms. (174 steps per ms) remains 143/143 properties
BEST_FIRST walk for 40004 steps (41 resets) in 237 ms. (168 steps per ms) remains 143/143 properties
BEST_FIRST walk for 40003 steps (40 resets) in 164 ms. (242 steps per ms) remains 143/143 properties
BEST_FIRST walk for 40004 steps (39 resets) in 179 ms. (222 steps per ms) remains 143/143 properties
BEST_FIRST walk for 40002 steps (41 resets) in 203 ms. (196 steps per ms) remains 143/143 properties
BEST_FIRST walk for 40004 steps (43 resets) in 172 ms. (231 steps per ms) remains 143/143 properties
BEST_FIRST walk for 40002 steps (38 resets) in 185 ms. (215 steps per ms) remains 143/143 properties
BEST_FIRST walk for 40003 steps (44 resets) in 178 ms. (223 steps per ms) remains 143/143 properties
BEST_FIRST walk for 40004 steps (40 resets) in 196 ms. (203 steps per ms) remains 143/143 properties
BEST_FIRST walk for 40004 steps (41 resets) in 203 ms. (196 steps per ms) remains 143/143 properties
BEST_FIRST walk for 40003 steps (41 resets) in 183 ms. (217 steps per ms) remains 143/143 properties
BEST_FIRST walk for 40004 steps (40 resets) in 205 ms. (194 steps per ms) remains 143/143 properties
BEST_FIRST walk for 40004 steps (41 resets) in 153 ms. (259 steps per ms) remains 143/143 properties
BEST_FIRST walk for 40004 steps (44 resets) in 166 ms. (239 steps per ms) remains 143/143 properties
BEST_FIRST walk for 40004 steps (41 resets) in 165 ms. (240 steps per ms) remains 143/143 properties
BEST_FIRST walk for 40003 steps (42 resets) in 202 ms. (197 steps per ms) remains 143/143 properties
BEST_FIRST walk for 40004 steps (41 resets) in 160 ms. (248 steps per ms) remains 143/143 properties
BEST_FIRST walk for 40003 steps (41 resets) in 217 ms. (183 steps per ms) remains 143/143 properties
BEST_FIRST walk for 40004 steps (42 resets) in 182 ms. (218 steps per ms) remains 143/143 properties
BEST_FIRST walk for 40003 steps (42 resets) in 157 ms. (253 steps per ms) remains 143/143 properties
BEST_FIRST walk for 40004 steps (43 resets) in 155 ms. (256 steps per ms) remains 143/143 properties
BEST_FIRST walk for 40004 steps (44 resets) in 185 ms. (215 steps per ms) remains 143/143 properties
BEST_FIRST walk for 40004 steps (39 resets) in 187 ms. (212 steps per ms) remains 143/143 properties
BEST_FIRST walk for 40003 steps (42 resets) in 155 ms. (256 steps per ms) remains 143/143 properties
BEST_FIRST walk for 40004 steps (42 resets) in 155 ms. (256 steps per ms) remains 143/143 properties
BEST_FIRST walk for 40002 steps (42 resets) in 188 ms. (211 steps per ms) remains 143/143 properties
BEST_FIRST walk for 40004 steps (42 resets) in 184 ms. (216 steps per ms) remains 143/143 properties
BEST_FIRST walk for 40004 steps (40 resets) in 214 ms. (186 steps per ms) remains 143/143 properties
BEST_FIRST walk for 40004 steps (42 resets) in 173 ms. (229 steps per ms) remains 143/143 properties
BEST_FIRST walk for 40002 steps (43 resets) in 183 ms. (217 steps per ms) remains 143/143 properties
BEST_FIRST walk for 40003 steps (42 resets) in 164 ms. (242 steps per ms) remains 143/143 properties
BEST_FIRST walk for 40003 steps (43 resets) in 185 ms. (215 steps per ms) remains 143/143 properties
BEST_FIRST walk for 40004 steps (42 resets) in 156 ms. (254 steps per ms) remains 143/143 properties
BEST_FIRST walk for 40004 steps (40 resets) in 173 ms. (229 steps per ms) remains 143/143 properties
BEST_FIRST walk for 40004 steps (44 resets) in 173 ms. (229 steps per ms) remains 143/143 properties
BEST_FIRST walk for 40004 steps (43 resets) in 172 ms. (231 steps per ms) remains 143/143 properties
SDD proceeding with computation,796 properties remain. new max is 16384
SDD size :1.42242e+27 after 1.42242e+27
Interrupted probabilistic random walk after 2892639 steps, run timeout after 66001 ms. (steps per millisecond=43 ) properties seen :0 out of 143
Probabilistic random walk after 2892639 steps, saw 705465 distinct states, run finished after 66008 ms. (steps per millisecond=43 ) properties seen :0
// Phase 1: matrix 2204 rows 1332 cols
[2026-05-25 06:02:24] [INFO ] Computed 234 invariants in 19 ms
Starting Z3 with timeout 90.0 s and query timeout 9000.0 ms
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/143 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 143 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/143 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 143 unsolved
At refinement iteration 2 (OVERLAPS) 75/218 variables, 28/29 constraints. Problems are: Problem set: 0 solved, 143 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/218 variables, 0/29 constraints. Problems are: Problem set: 0 solved, 143 unsolved
At refinement iteration 4 (OVERLAPS) 8/226 variables, 8/37 constraints. Problems are: Problem set: 0 solved, 143 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/226 variables, 0/37 constraints. Problems are: Problem set: 0 solved, 143 unsolved
At refinement iteration 6 (OVERLAPS) 484/710 variables, 64/101 constraints. Problems are: Problem set: 0 solved, 143 unsolved
SDD proceeding with computation,796 properties remain. new max is 32768
SDD size :1.42242e+27 after 1.42264e+27
At refinement iteration 7 (INCLUDED_ONLY) 0/710 variables, 0/101 constraints. Problems are: Problem set: 0 solved, 143 unsolved
At refinement iteration 8 (OVERLAPS) 13/723 variables, 13/114 constraints. Problems are: Problem set: 0 solved, 143 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/723 variables, 0/114 constraints. Problems are: Problem set: 0 solved, 143 unsolved
At refinement iteration 10 (OVERLAPS) 245/968 variables, 45/159 constraints. Problems are: Problem set: 0 solved, 143 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/968 variables, 0/159 constraints. Problems are: Problem set: 0 solved, 143 unsolved
At refinement iteration 12 (OVERLAPS) 10/978 variables, 7/166 constraints. Problems are: Problem set: 0 solved, 143 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/978 variables, 0/166 constraints. Problems are: Problem set: 0 solved, 143 unsolved
At refinement iteration 14 (OVERLAPS) 60/1038 variables, 11/177 constraints. Problems are: Problem set: 0 solved, 143 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/1038 variables, 0/177 constraints. Problems are: Problem set: 0 solved, 143 unsolved
At refinement iteration 16 (OVERLAPS) 3/1041 variables, 3/180 constraints. Problems are: Problem set: 0 solved, 143 unsolved
Invariant property smplace_1859 does not hold.
Invariant property smplace_1858 does not hold.
Invariant property smplace_1779 does not hold.
Invariant property smplace_1760 does not hold.
Invariant property smplace_1755 does not hold.
Invariant property smplace_1754 does not hold.
Invariant property smplace_1753 does not hold.
Invariant property smplace_1735 does not hold.
Invariant property smplace_1715 does not hold.
Invariant property smplace_1693 does not hold.
Invariant property smplace_1669 does not hold.
Invariant property smplace_1668 does not hold.
Invariant property smplace_1659 does not hold.
Invariant property smplace_1473 does not hold.
At refinement iteration 17 (INCLUDED_ONLY) 0/1041 variables, 0/180 constraints. Problems are: Problem set: 0 solved, 143 unsolved
At refinement iteration 18 (OVERLAPS) 62/1103 variables, 9/189 constraints. Problems are: Problem set: 0 solved, 143 unsolved
Invariant property smplace_1278 does not hold.
At refinement iteration 19 (INCLUDED_ONLY) 0/1103 variables, 0/189 constraints. Problems are: Problem set: 1 solved, 142 unsolved
At refinement iteration 20 (OVERLAPS) 21/1124 variables, 4/193 constraints. Problems are: Problem set: 1 solved, 142 unsolved
Invariant property smplace_1083 does not hold.
At refinement iteration 21 (INCLUDED_ONLY) 0/1124 variables, 0/193 constraints. Problems are: Problem set: 2 solved, 141 unsolved
At refinement iteration 22 (OVERLAPS) 93/1217 variables, 10/203 constraints. Problems are: Problem set: 2 solved, 141 unsolved
Invariant property smplace_888 does not hold.
At refinement iteration 23 (INCLUDED_ONLY) 0/1217 variables, 0/203 constraints. Problems are: Problem set: 3 solved, 140 unsolved
At refinement iteration 24 (OVERLAPS) 45/1262 variables, 6/209 constraints. Problems are: Problem set: 3 solved, 140 unsolved
Invariant property smplace_693 does not hold.
Invariant property smplace_692 does not hold.
At refinement iteration 25 (INCLUDED_ONLY) 0/1262 variables, 0/209 constraints. Problems are: Problem set: 5 solved, 138 unsolved
At refinement iteration 26 (OVERLAPS) 68/1330 variables, 23/232 constraints. Problems are: Problem set: 5 solved, 138 unsolved
At refinement iteration 27 (INCLUDED_ONLY) 0/1330 variables, 0/232 constraints. Problems are: Problem set: 5 solved, 138 unsolved
At refinement iteration 28 (OVERLAPS) 1/1331 variables, 1/233 constraints. Problems are: Problem set: 5 solved, 138 unsolved
Invariant property smplace_498 does not hold.
Invariant property smplace_497 does not hold.
At refinement iteration 29 (INCLUDED_ONLY) 0/1331 variables, 0/233 constraints. Problems are: Problem set: 7 solved, 136 unsolved
At refinement iteration 30 (OVERLAPS) 1/1332 variables, 1/234 constraints. Problems are: Problem set: 7 solved, 136 unsolved
At refinement iteration 31 (INCLUDED_ONLY) 0/1332 variables, 0/234 constraints. Problems are: Problem set: 7 solved, 136 unsolved
At refinement iteration 32 (OVERLAPS) 2204/3536 variables, 1332/1566 constraints. Problems are: Problem set: 7 solved, 136 unsolved
At refinement iteration 33 (INCLUDED_ONLY) 0/3536 variables, 0/1566 constraints. Problems are: Problem set: 7 solved, 136 unsolved
Invariant property smplace_303 does not hold.
Invariant property smplace_302 does not hold.
At refinement iteration 34 (OVERLAPS) 0/3536 variables, 0/1566 constraints. Problems are: Problem set: 9 solved, 134 unsolved
Invariant property smplace_109 does not hold.
Invariant property smplace_108 does not hold.
No progress, stopping.
After SMT solving in domain Real declared 3536/3536 variables, and 1566 constraints, problems are : Problem set: 9 solved, 134 unsolved in 85841 ms.
Refiners :[Positive P Invariants (semi-flows): 70/70 constraints, Generalized P Invariants (flows): 164/164 constraints, State Equation: 1332/1332 constraints, PredecessorRefiner: 143/143 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 9 solved, 134 unsolved
Starting Z3 with timeout 90.0 s and query timeout 9000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/134 variables, 1/1 constraints. Problems are: Problem set: 11 solved, 132 unsolved
Invariant property smplace_30 does not hold.
Invariant property smplace_29 does not hold.
Invariant property smplace_28 does not hold.
Invariant property smplace_26 does not hold.
Invariant property smplace_25 does not hold.
Invariant property smplace_20 does not hold.
SDD proceeding with computation,765 properties remain. new max is 32768
SDD size :1.42264e+27 after 3.22175e+28
At refinement iteration 1 (INCLUDED_ONLY) 0/134 variables, 0/1 constraints. Problems are: Problem set: 17 solved, 126 unsolved
At refinement iteration 2 (OVERLAPS) 75/209 variables, 28/29 constraints. Problems are: Problem set: 17 solved, 126 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/209 variables, 0/29 constraints. Problems are: Problem set: 17 solved, 126 unsolved
At refinement iteration 4 (OVERLAPS) 8/217 variables, 8/37 constraints. Problems are: Problem set: 17 solved, 126 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/217 variables, 0/37 constraints. Problems are: Problem set: 17 solved, 126 unsolved
At refinement iteration 6 (OVERLAPS) 493/710 variables, 64/101 constraints. Problems are: Problem set: 17 solved, 126 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/710 variables, 0/101 constraints. Problems are: Problem set: 17 solved, 126 unsolved
At refinement iteration 8 (OVERLAPS) 13/723 variables, 13/114 constraints. Problems are: Problem set: 17 solved, 126 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/723 variables, 0/114 constraints. Problems are: Problem set: 17 solved, 126 unsolved
At refinement iteration 10 (OVERLAPS) 245/968 variables, 45/159 constraints. Problems are: Problem set: 17 solved, 126 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/968 variables, 0/159 constraints. Problems are: Problem set: 17 solved, 126 unsolved
At refinement iteration 12 (OVERLAPS) 10/978 variables, 7/166 constraints. Problems are: Problem set: 17 solved, 126 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/978 variables, 0/166 constraints. Problems are: Problem set: 17 solved, 126 unsolved
At refinement iteration 14 (OVERLAPS) 60/1038 variables, 11/177 constraints. Problems are: Problem set: 17 solved, 126 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/1038 variables, 0/177 constraints. Problems are: Problem set: 17 solved, 126 unsolved
At refinement iteration 16 (OVERLAPS) 3/1041 variables, 3/180 constraints. Problems are: Problem set: 17 solved, 126 unsolved
Invariant property smplace_887 does not hold.
At refinement iteration 17 (INCLUDED_ONLY) 0/1041 variables, 0/180 constraints. Problems are: Problem set: 18 solved, 125 unsolved
At refinement iteration 18 (OVERLAPS) 62/1103 variables, 9/189 constraints. Problems are: Problem set: 18 solved, 125 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/1103 variables, 0/189 constraints. Problems are: Problem set: 18 solved, 125 unsolved
At refinement iteration 20 (OVERLAPS) 21/1124 variables, 4/193 constraints. Problems are: Problem set: 18 solved, 125 unsolved
Detected timeout of ITS tools.
[2026-05-25 06:05:01] [INFO ] Flatten gal took : 115 ms
[2026-05-25 06:05:01] [INFO ] Applying decomposition
[2026-05-25 06:05:01] [INFO ] Flatten gal took : 113 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/graph1261114074346155681.txt' '-o' '/tmp/graph1261114074346155681.bin' '-w' '/tmp/graph1261114074346155681.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/louvain-linux64' '/tmp/graph1261114074346155681.bin' '-l' '-1' '-v' '-w' '/tmp/graph1261114074346155681.weights' '-q' '0' '-e' '0.001'
[2026-05-25 06:05:02] [INFO ] Decomposing Gal with order
[2026-05-25 06:05:02] [INFO ] Rewriting arrays to variables to allow decomposition.
[2026-05-25 06:05:02] [INFO ] Removed a total of 3887 redundant transitions.
[2026-05-25 06:05:02] [INFO ] Flatten gal took : 291 ms
[2026-05-25 06:05:02] [INFO ] Fuse similar labels procedure discarded/fused a total of 52 labels/synchronizations in 88 ms.
[2026-05-25 06:05:02] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality2067259697937257925.gal : 27 ms
[2026-05-25 06:05:02] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality1986253617668266513.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/ReachabilityCardinality2067259697937257925.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality1986253617668266513.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/ReachabilityCardinality1986253617668266513.prop.
SDD proceeding with computation,125 properties remain. new max is 4
SDD size :1 after 1
SDD proceeding with computation,125 properties remain. new max is 8
SDD size :9 after 2153
SDD proceeding with computation,125 properties remain. new max is 16
SDD size :2153 after 2.17989e+09
At refinement iteration 21 (INCLUDED_ONLY) 0/1124 variables, 0/193 constraints. Problems are: Problem set: 18 solved, 125 unsolved
At refinement iteration 22 (OVERLAPS) 93/1217 variables, 10/203 constraints. Problems are: Problem set: 18 solved, 125 unsolved
SDD proceeding with computation,125 properties remain. new max is 32
SDD size :2.17989e+09 after 1.54133e+27
SDD proceeding with computation,125 properties remain. new max is 64
SDD size :1.54133e+27 after 1.75242e+27
SDD proceeding with computation,125 properties remain. new max is 128
SDD size :1.75242e+27 after 9.32227e+27
Invariant property smplace_1277 does not hold.
Invariant property smplace_1082 does not hold.
SDD proceeding with computation,123 properties remain. new max is 128
SDD size :9.32227e+27 after 9.5364e+27
Invariant property smplace_1276 does not hold.
Invariant property smplace_1275 does not hold.
Invariant property smplace_1081 does not hold.
Invariant property smplace_1080 does not hold.
SDD proceeding with computation,119 properties remain. new max is 128
SDD size :9.5364e+27 after 1.38021e+28
Invariant property smplace_886 does not hold.
Invariant property smplace_885 does not hold.
Invariant property smplace_691 does not hold.
Invariant property smplace_690 does not hold.
Invariant property smplace_496 does not hold.
Invariant property smplace_495 does not hold.
Invariant property smplace_301 does not hold.
Invariant property smplace_300 does not hold.
Invariant property smplace_107 does not hold.
Invariant property smplace_106 does not hold.
SDD proceeding with computation,109 properties remain. new max is 128
SDD size :1.38021e+28 after 1.38021e+28
Invariant property smplace_1287 does not hold.
Invariant property smplace_1284 does not hold.
Invariant property smplace_1281 does not hold.
Invariant property smplace_1274 does not hold.
Invariant property smplace_1273 does not hold.
Invariant property smplace_1092 does not hold.
Invariant property smplace_1089 does not hold.
Invariant property smplace_1086 does not hold.
Invariant property smplace_1079 does not hold.
Invariant property smplace_1078 does not hold.
Invariant property smplace_897 does not hold.
Invariant property smplace_894 does not hold.
Invariant property smplace_891 does not hold.
Invariant property smplace_884 does not hold.
Invariant property smplace_883 does not hold.
SDD proceeding with computation,94 properties remain. new max is 128
SDD size :1.38021e+28 after 2.28434e+28
Invariant property smplace_899 does not hold.
Invariant property smplace_898 does not hold.
Invariant property smplace_896 does not hold.
Invariant property smplace_895 does not hold.
Invariant property smplace_893 does not hold.
Invariant property smplace_892 does not hold.
Invariant property smplace_882 does not hold.
Invariant property smplace_704 does not hold.
Invariant property smplace_703 does not hold.
Invariant property smplace_702 does not hold.
Invariant property smplace_701 does not hold.
Invariant property smplace_700 does not hold.
Invariant property smplace_699 does not hold.
Invariant property smplace_698 does not hold.
Invariant property smplace_697 does not hold.
Invariant property smplace_696 does not hold.
Invariant property smplace_689 does not hold.
Invariant property smplace_688 does not hold.
Invariant property smplace_687 does not hold.
Invariant property smplace_507 does not hold.
Invariant property smplace_504 does not hold.
Invariant property smplace_501 does not hold.
Invariant property smplace_494 does not hold.
Invariant property smplace_493 does not hold.
Invariant property smplace_312 does not hold.
Invariant property smplace_309 does not hold.
Invariant property smplace_306 does not hold.
Invariant property smplace_299 does not hold.
Invariant property smplace_298 does not hold.
Invariant property smplace_118 does not hold.
Invariant property smplace_115 does not hold.
Invariant property smplace_112 does not hold.
Invariant property smplace_105 does not hold.
Invariant property smplace_104 does not hold.
SDD proceeding with computation,60 properties remain. new max is 128
SDD size :2.28434e+28 after 2.28434e+28
At refinement iteration 23 (INCLUDED_ONLY) 0/1217 variables, 0/203 constraints. Problems are: Problem set: 83 solved, 60 unsolved
At refinement iteration 24 (OVERLAPS) 45/1262 variables, 6/209 constraints. Problems are: Problem set: 83 solved, 60 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1262/3536 variables, and 209 constraints, problems are : Problem set: 83 solved, 60 unsolved in 90036 ms.
Refiners :[Positive P Invariants (semi-flows): 69/70 constraints, Generalized P Invariants (flows): 140/164 constraints, State Equation: 0/1332 constraints, PredecessorRefiner: 0/143 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 175951ms problems are : Problem set: 83 solved, 60 unsolved
Skipping Parikh replay, no witness traces provided.
Support contains 60 out of 1332 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 1332/1332 places, 2204/2204 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 6 transitions
Trivial Post-agglo rules discarded 6 transitions
Performed 6 trivial Post agglomeration. Transition count delta: 6
Iterating post reduction 0 with 6 rules applied. Total rules applied 6 place count 1332 transition count 2198
Reduce places removed 6 places and 0 transitions.
Iterating post reduction 1 with 6 rules applied. Total rules applied 12 place count 1326 transition count 2198
Performed 6 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 6 Pre rules applied. Total rules applied 12 place count 1326 transition count 2192
Deduced a syphon composed of 6 places in 7 ms
Ensure Unique test removed 4 places
Reduce places removed 10 places and 0 transitions.
Iterating global reduction 2 with 16 rules applied. Total rules applied 28 place count 1316 transition count 2192
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 4 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 2 with 2 rules applied. Total rules applied 30 place count 1315 transition count 2191
Partial Free-agglomeration rule applied 1 times.
Drop transitions (Partial Free agglomeration) removed 1 transitions
Iterating global reduction 2 with 1 rules applied. Total rules applied 31 place count 1315 transition count 2191
Applied a total of 31 rules in 272 ms. Remains 1315 /1332 variables (removed 17) and now considering 2191/2204 (removed 13) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 272 ms. Remains : 1315/1332 places, 2191/2204 transitions.
RANDOM walk for 4000000 steps (39524 resets) in 50462 ms. (79 steps per ms) remains 60/60 properties
BEST_FIRST walk for 400004 steps (430 resets) in 1292 ms. (309 steps per ms) remains 60/60 properties
BEST_FIRST walk for 400004 steps (430 resets) in 1321 ms. (302 steps per ms) remains 60/60 properties
BEST_FIRST walk for 400003 steps (435 resets) in 1263 ms. (316 steps per ms) remains 60/60 properties
BEST_FIRST walk for 400003 steps (428 resets) in 1360 ms. (293 steps per ms) remains 60/60 properties
BEST_FIRST walk for 400002 steps (430 resets) in 1317 ms. (303 steps per ms) remains 60/60 properties
BEST_FIRST walk for 400003 steps (429 resets) in 1405 ms. (284 steps per ms) remains 60/60 properties
BEST_FIRST walk for 400003 steps (431 resets) in 1291 ms. (309 steps per ms) remains 60/60 properties
BEST_FIRST walk for 400004 steps (434 resets) in 1327 ms. (301 steps per ms) remains 60/60 properties
BEST_FIRST walk for 400004 steps (430 resets) in 1332 ms. (300 steps per ms) remains 60/60 properties
BEST_FIRST walk for 400002 steps (433 resets) in 1285 ms. (311 steps per ms) remains 60/60 properties
BEST_FIRST walk for 400003 steps (427 resets) in 1351 ms. (295 steps per ms) remains 60/60 properties
BEST_FIRST walk for 400004 steps (428 resets) in 1249 ms. (320 steps per ms) remains 60/60 properties
BEST_FIRST walk for 400003 steps (429 resets) in 1360 ms. (293 steps per ms) remains 60/60 properties
BEST_FIRST walk for 400004 steps (432 resets) in 1280 ms. (312 steps per ms) remains 60/60 properties
BEST_FIRST walk for 400004 steps (430 resets) in 1568 ms. (254 steps per ms) remains 60/60 properties
BEST_FIRST walk for 400004 steps (429 resets) in 1278 ms. (312 steps per ms) remains 60/60 properties
BEST_FIRST walk for 400004 steps (434 resets) in 1369 ms. (291 steps per ms) remains 60/60 properties
BEST_FIRST walk for 400003 steps (425 resets) in 1329 ms. (300 steps per ms) remains 60/60 properties
BEST_FIRST walk for 400004 steps (428 resets) in 1322 ms. (302 steps per ms) remains 60/60 properties
BEST_FIRST walk for 400004 steps (431 resets) in 1331 ms. (300 steps per ms) remains 60/60 properties
BEST_FIRST walk for 400003 steps (437 resets) in 1370 ms. (291 steps per ms) remains 60/60 properties
BEST_FIRST walk for 400004 steps (430 resets) in 1418 ms. (281 steps per ms) remains 60/60 properties
BEST_FIRST walk for 400003 steps (434 resets) in 1327 ms. (301 steps per ms) remains 60/60 properties
BEST_FIRST walk for 400004 steps (428 resets) in 1352 ms. (295 steps per ms) remains 60/60 properties
BEST_FIRST walk for 400004 steps (427 resets) in 1328 ms. (300 steps per ms) remains 60/60 properties
BEST_FIRST walk for 400003 steps (431 resets) in 1353 ms. (295 steps per ms) remains 60/60 properties
BEST_FIRST walk for 400004 steps (429 resets) in 1243 ms. (321 steps per ms) remains 60/60 properties
BEST_FIRST walk for 400004 steps (430 resets) in 1360 ms. (293 steps per ms) remains 60/60 properties
BEST_FIRST walk for 400002 steps (435 resets) in 1276 ms. (313 steps per ms) remains 60/60 properties
BEST_FIRST walk for 400003 steps (422 resets) in 1271 ms. (314 steps per ms) remains 60/60 properties
BEST_FIRST walk for 400004 steps (433 resets) in 1368 ms. (292 steps per ms) remains 60/60 properties
BEST_FIRST walk for 400003 steps (429 resets) in 1329 ms. (300 steps per ms) remains 60/60 properties
BEST_FIRST walk for 400004 steps (425 resets) in 1363 ms. (293 steps per ms) remains 60/60 properties
BEST_FIRST walk for 400004 steps (432 resets) in 1311 ms. (304 steps per ms) remains 60/60 properties
BEST_FIRST walk for 400004 steps (427 resets) in 1355 ms. (294 steps per ms) remains 60/60 properties
BEST_FIRST walk for 400004 steps (429 resets) in 1243 ms. (321 steps per ms) remains 60/60 properties
BEST_FIRST walk for 400004 steps (436 resets) in 1361 ms. (293 steps per ms) remains 60/60 properties
BEST_FIRST walk for 400004 steps (435 resets) in 1376 ms. (290 steps per ms) remains 60/60 properties
BEST_FIRST walk for 400004 steps (435 resets) in 1440 ms. (277 steps per ms) remains 60/60 properties
BEST_FIRST walk for 400004 steps (429 resets) in 1254 ms. (318 steps per ms) remains 60/60 properties
BEST_FIRST walk for 400003 steps (431 resets) in 1321 ms. (302 steps per ms) remains 60/60 properties
BEST_FIRST walk for 400003 steps (428 resets) in 1298 ms. (307 steps per ms) remains 60/60 properties
BEST_FIRST walk for 400002 steps (428 resets) in 1361 ms. (293 steps per ms) remains 60/60 properties
BEST_FIRST walk for 400002 steps (423 resets) in 1304 ms. (306 steps per ms) remains 60/60 properties
BEST_FIRST walk for 400004 steps (429 resets) in 1303 ms. (306 steps per ms) remains 60/60 properties
BEST_FIRST walk for 400004 steps (430 resets) in 1231 ms. (324 steps per ms) remains 60/60 properties
BEST_FIRST walk for 400003 steps (428 resets) in 1333 ms. (299 steps per ms) remains 60/60 properties
BEST_FIRST walk for 400002 steps (427 resets) in 1307 ms. (305 steps per ms) remains 60/60 properties
BEST_FIRST walk for 400004 steps (428 resets) in 1361 ms. (293 steps per ms) remains 60/60 properties
BEST_FIRST walk for 400004 steps (428 resets) in 1323 ms. (302 steps per ms) remains 60/60 properties
Interrupted probabilistic random walk after 5840181 steps, run timeout after 105001 ms. (steps per millisecond=55 ) properties seen :0 out of 60
Probabilistic random walk after 5840181 steps, saw 1179995 distinct states, run finished after 105004 ms. (steps per millisecond=55 ) properties seen :0
// Phase 1: matrix 2191 rows 1315 cols
[2026-05-25 06:07:41] [INFO ] Computed 230 invariants in 19 ms
Starting Z3 with timeout 105.0 s and query timeout 10500.0 ms
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/60 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 60 unsolved
At refinement iteration 1 (OVERLAPS) 85/145 variables, 22/22 constraints. Problems are: Problem set: 0 solved, 60 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/145 variables, 0/22 constraints. Problems are: Problem set: 0 solved, 60 unsolved
At refinement iteration 3 (OVERLAPS) 6/151 variables, 6/28 constraints. Problems are: Problem set: 0 solved, 60 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/151 variables, 0/28 constraints. Problems are: Problem set: 0 solved, 60 unsolved
At refinement iteration 5 (OVERLAPS) 411/562 variables, 52/80 constraints. Problems are: Problem set: 0 solved, 60 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/562 variables, 0/80 constraints. Problems are: Problem set: 0 solved, 60 unsolved
At refinement iteration 7 (OVERLAPS) 13/575 variables, 12/92 constraints. Problems are: Problem set: 0 solved, 60 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/575 variables, 0/92 constraints. Problems are: Problem set: 0 solved, 60 unsolved
At refinement iteration 9 (OVERLAPS) 1/576 variables, 1/93 constraints. Problems are: Problem set: 0 solved, 60 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/576 variables, 0/93 constraints. Problems are: Problem set: 0 solved, 60 unsolved
At refinement iteration 11 (OVERLAPS) 282/858 variables, 45/138 constraints. Problems are: Problem set: 0 solved, 60 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/858 variables, 0/138 constraints. Problems are: Problem set: 0 solved, 60 unsolved
At refinement iteration 13 (OVERLAPS) 16/874 variables, 10/148 constraints. Problems are: Problem set: 0 solved, 60 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/874 variables, 0/148 constraints. Problems are: Problem set: 0 solved, 60 unsolved
At refinement iteration 15 (OVERLAPS) 134/1008 variables, 21/169 constraints. Problems are: Problem set: 0 solved, 60 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/1008 variables, 0/169 constraints. Problems are: Problem set: 0 solved, 60 unsolved
At refinement iteration 17 (OVERLAPS) 4/1012 variables, 4/173 constraints. Problems are: Problem set: 0 solved, 60 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/1012 variables, 0/173 constraints. Problems are: Problem set: 0 solved, 60 unsolved
At refinement iteration 19 (OVERLAPS) 74/1086 variables, 12/185 constraints. Problems are: Problem set: 0 solved, 60 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/1086 variables, 0/185 constraints. Problems are: Problem set: 0 solved, 60 unsolved
At refinement iteration 21 (OVERLAPS) 21/1107 variables, 4/189 constraints. Problems are: Problem set: 0 solved, 60 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/1107 variables, 0/189 constraints. Problems are: Problem set: 0 solved, 60 unsolved
At refinement iteration 23 (OVERLAPS) 93/1200 variables, 10/199 constraints. Problems are: Problem set: 0 solved, 60 unsolved
At refinement iteration 24 (INCLUDED_ONLY) 0/1200 variables, 0/199 constraints. Problems are: Problem set: 0 solved, 60 unsolved
At refinement iteration 25 (OVERLAPS) 44/1244 variables, 6/205 constraints. Problems are: Problem set: 0 solved, 60 unsolved
At refinement iteration 26 (INCLUDED_ONLY) 0/1244 variables, 0/205 constraints. Problems are: Problem set: 0 solved, 60 unsolved
At refinement iteration 27 (OVERLAPS) 68/1312 variables, 22/227 constraints. Problems are: Problem set: 0 solved, 60 unsolved
At refinement iteration 28 (INCLUDED_ONLY) 0/1312 variables, 0/227 constraints. Problems are: Problem set: 0 solved, 60 unsolved
At refinement iteration 29 (OVERLAPS) 1/1313 variables, 1/228 constraints. Problems are: Problem set: 0 solved, 60 unsolved
At refinement iteration 30 (INCLUDED_ONLY) 0/1313 variables, 0/228 constraints. Problems are: Problem set: 0 solved, 60 unsolved
At refinement iteration 31 (OVERLAPS) 2/1315 variables, 2/230 constraints. Problems are: Problem set: 0 solved, 60 unsolved
At refinement iteration 32 (INCLUDED_ONLY) 0/1315 variables, 0/230 constraints. Problems are: Problem set: 0 solved, 60 unsolved
At refinement iteration 33 (OVERLAPS) 2191/3506 variables, 1315/1545 constraints. Problems are: Problem set: 0 solved, 60 unsolved
At refinement iteration 34 (INCLUDED_ONLY) 0/3506 variables, 0/1545 constraints. Problems are: Problem set: 0 solved, 60 unsolved
At refinement iteration 35 (OVERLAPS) 0/3506 variables, 0/1545 constraints. Problems are: Problem set: 0 solved, 60 unsolved
No progress, stopping.
After SMT solving in domain Real declared 3506/3506 variables, and 1545 constraints, problems are : Problem set: 0 solved, 60 unsolved in 36789 ms.
Refiners :[Positive P Invariants (semi-flows): 66/66 constraints, Generalized P Invariants (flows): 164/164 constraints, State Equation: 1315/1315 constraints, PredecessorRefiner: 60/60 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 60 unsolved
Starting Z3 with timeout 105.0 s and query timeout 10500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/60 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 60 unsolved
At refinement iteration 1 (OVERLAPS) 85/145 variables, 22/22 constraints. Problems are: Problem set: 0 solved, 60 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/145 variables, 0/22 constraints. Problems are: Problem set: 0 solved, 60 unsolved
At refinement iteration 3 (OVERLAPS) 6/151 variables, 6/28 constraints. Problems are: Problem set: 0 solved, 60 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/151 variables, 0/28 constraints. Problems are: Problem set: 0 solved, 60 unsolved
At refinement iteration 5 (OVERLAPS) 411/562 variables, 52/80 constraints. Problems are: Problem set: 0 solved, 60 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/562 variables, 0/80 constraints. Problems are: Problem set: 0 solved, 60 unsolved
At refinement iteration 7 (OVERLAPS) 13/575 variables, 12/92 constraints. Problems are: Problem set: 0 solved, 60 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/575 variables, 0/92 constraints. Problems are: Problem set: 0 solved, 60 unsolved
At refinement iteration 9 (OVERLAPS) 1/576 variables, 1/93 constraints. Problems are: Problem set: 0 solved, 60 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/576 variables, 0/93 constraints. Problems are: Problem set: 0 solved, 60 unsolved
At refinement iteration 11 (OVERLAPS) 282/858 variables, 45/138 constraints. Problems are: Problem set: 0 solved, 60 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/858 variables, 0/138 constraints. Problems are: Problem set: 0 solved, 60 unsolved
At refinement iteration 13 (OVERLAPS) 16/874 variables, 10/148 constraints. Problems are: Problem set: 0 solved, 60 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/874 variables, 0/148 constraints. Problems are: Problem set: 0 solved, 60 unsolved
At refinement iteration 15 (OVERLAPS) 134/1008 variables, 21/169 constraints. Problems are: Problem set: 0 solved, 60 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/1008 variables, 0/169 constraints. Problems are: Problem set: 0 solved, 60 unsolved
At refinement iteration 17 (OVERLAPS) 4/1012 variables, 4/173 constraints. Problems are: Problem set: 0 solved, 60 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/1012 variables, 0/173 constraints. Problems are: Problem set: 0 solved, 60 unsolved
At refinement iteration 19 (OVERLAPS) 74/1086 variables, 12/185 constraints. Problems are: Problem set: 0 solved, 60 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/1086 variables, 0/185 constraints. Problems are: Problem set: 0 solved, 60 unsolved
At refinement iteration 21 (OVERLAPS) 21/1107 variables, 4/189 constraints. Problems are: Problem set: 0 solved, 60 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/1107 variables, 0/189 constraints. Problems are: Problem set: 0 solved, 60 unsolved
At refinement iteration 23 (OVERLAPS) 93/1200 variables, 10/199 constraints. Problems are: Problem set: 0 solved, 60 unsolved
At refinement iteration 24 (INCLUDED_ONLY) 0/1200 variables, 0/199 constraints. Problems are: Problem set: 0 solved, 60 unsolved
At refinement iteration 25 (OVERLAPS) 44/1244 variables, 6/205 constraints. Problems are: Problem set: 0 solved, 60 unsolved
At refinement iteration 26 (INCLUDED_ONLY) 0/1244 variables, 0/205 constraints. Problems are: Problem set: 0 solved, 60 unsolved
At refinement iteration 27 (OVERLAPS) 68/1312 variables, 22/227 constraints. Problems are: Problem set: 0 solved, 60 unsolved
At refinement iteration 28 (INCLUDED_ONLY) 0/1312 variables, 0/227 constraints. Problems are: Problem set: 0 solved, 60 unsolved
At refinement iteration 29 (OVERLAPS) 1/1313 variables, 1/228 constraints. Problems are: Problem set: 0 solved, 60 unsolved
At refinement iteration 30 (INCLUDED_ONLY) 0/1313 variables, 0/228 constraints. Problems are: Problem set: 0 solved, 60 unsolved
At refinement iteration 31 (OVERLAPS) 2/1315 variables, 2/230 constraints. Problems are: Problem set: 0 solved, 60 unsolved
At refinement iteration 32 (INCLUDED_ONLY) 0/1315 variables, 0/230 constraints. Problems are: Problem set: 0 solved, 60 unsolved
At refinement iteration 33 (OVERLAPS) 2191/3506 variables, 1315/1545 constraints. Problems are: Problem set: 0 solved, 60 unsolved
At refinement iteration 34 (INCLUDED_ONLY) 0/3506 variables, 60/1605 constraints. Problems are: Problem set: 0 solved, 60 unsolved
At refinement iteration 35 (INCLUDED_ONLY) 0/3506 variables, 0/1605 constraints. Problems are: Problem set: 0 solved, 60 unsolved
At refinement iteration 36 (OVERLAPS) 0/3506 variables, 0/1605 constraints. Problems are: Problem set: 0 solved, 60 unsolved
No progress, stopping.
Error getting values : (error "ParserException while parsing response: (timeout
org.smtlib.IParser$ParserException: Unbalanced parentheses at end of input")
After SMT solving in domain Int declared 3506/3506 variables, and 1605 constraints, problems are : Problem set: 0 solved, 60 unsolved in 105040 ms.
Refiners :[Positive P Invariants (semi-flows): 66/66 constraints, Generalized P Invariants (flows): 164/164 constraints, State Equation: 1315/1315 constraints, PredecessorRefiner: 60/60 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 141877ms problems are : Problem set: 0 solved, 60 unsolved
Fused 60 Parikh solutions to 38 different solutions.
Parikh walk visited 0 properties in 30988 ms.
Support contains 60 out of 1315 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 1315/1315 places, 2191/2191 transitions.
Applied a total of 0 rules in 63 ms. Remains 1315 /1315 variables (removed 0) and now considering 2191/2191 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 63 ms. Remains : 1315/1315 places, 2191/2191 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 1315/1315 places, 2191/2191 transitions.
Applied a total of 0 rules in 62 ms. Remains 1315 /1315 variables (removed 0) and now considering 2191/2191 (removed 0) transitions.
[2026-05-25 06:10:34] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 06:10:35] [INFO ] Implicit Places using invariants in 1394 ms returned [0, 18, 19, 31, 49, 67, 152, 170, 171, 172, 190, 208, 227, 286, 287, 298, 299, 300, 318, 336, 355, 414, 415, 426, 427, 428, 446, 464, 483, 533, 534, 545, 546, 547, 565, 583, 602, 653, 654, 665, 666, 667, 685, 703, 722, 781, 782, 793, 794, 795, 813, 831, 850, 908, 909, 920, 921, 922, 940, 958, 977, 1027, 1028, 1039, 1040, 1041, 1059, 1077, 1096, 1146, 1147, 1150, 1161, 1162, 1163, 1181, 1183, 1186, 1204, 1205, 1206, 1207, 1219, 1225, 1231, 1237, 1243, 1249, 1255, 1261, 1267, 1273, 1279]
Discarding 93 places :
Implicit Place search using SMT only with invariants took 1404 ms to find 93 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 1 : 1222/1315 places, 2191/2191 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 139 transitions
Trivial Post-agglo rules discarded 139 transitions
Performed 139 trivial Post agglomeration. Transition count delta: 139
Iterating post reduction 0 with 139 rules applied. Total rules applied 139 place count 1222 transition count 2052
Reduce places removed 139 places and 0 transitions.
Iterating post reduction 1 with 139 rules applied. Total rules applied 278 place count 1083 transition count 2052
Performed 38 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 38 Pre rules applied. Total rules applied 278 place count 1083 transition count 2014
Deduced a syphon composed of 38 places in 4 ms
Ensure Unique test removed 1 places
Reduce places removed 39 places and 0 transitions.
Iterating global reduction 2 with 77 rules applied. Total rules applied 355 place count 1044 transition count 2014
Discarding 4 places :
Implicit places reduction removed 4 places
Drop transitions (Trivial Post-Agglo cleanup.) removed 8 transitions
Trivial Post-agglo rules discarded 8 transitions
Performed 8 trivial Post agglomeration. Transition count delta: 8
Iterating post reduction 2 with 12 rules applied. Total rules applied 367 place count 1040 transition count 2006
Reduce places removed 8 places and 0 transitions.
Iterating post reduction 3 with 8 rules applied. Total rules applied 375 place count 1032 transition count 2006
Discarding 15 places :
Symmetric choice reduction at 4 with 15 rule applications. Total rules 390 place count 1017 transition count 1991
Iterating global reduction 4 with 15 rules applied. Total rules applied 405 place count 1017 transition count 1991
Ensure Unique test removed 3 transitions
Reduce isomorphic transitions removed 3 transitions.
Iterating post reduction 4 with 3 rules applied. Total rules applied 408 place count 1017 transition count 1988
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 5 with 1 Pre rules applied. Total rules applied 408 place count 1017 transition count 1987
Deduced a syphon composed of 1 places in 3 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 5 with 2 rules applied. Total rules applied 410 place count 1016 transition count 1987
Discarding 3 places :
Symmetric choice reduction at 5 with 3 rule applications. Total rules 413 place count 1013 transition count 1984
Iterating global reduction 5 with 3 rules applied. Total rules applied 416 place count 1013 transition count 1984
Discarding 1 places :
Symmetric choice reduction at 5 with 1 rule applications. Total rules 417 place count 1012 transition count 1983
Iterating global reduction 5 with 1 rules applied. Total rules applied 418 place count 1012 transition count 1983
Discarding 1 places :
Symmetric choice reduction at 5 with 1 rule applications. Total rules 419 place count 1011 transition count 1982
Iterating global reduction 5 with 1 rules applied. Total rules applied 420 place count 1011 transition count 1982
Performed 86 Post agglomeration using F-continuation condition.Transition count delta: 86
Deduced a syphon composed of 86 places in 3 ms
Reduce places removed 86 places and 0 transitions.
Iterating global reduction 5 with 172 rules applied. Total rules applied 592 place count 925 transition count 1896
Ensure Unique test removed 8 transitions
Reduce isomorphic transitions removed 8 transitions.
Iterating post reduction 5 with 8 rules applied. Total rules applied 600 place count 925 transition count 1888
Free-agglomeration rule (complex) applied 29 times.
Iterating global reduction 6 with 29 rules applied. Total rules applied 629 place count 925 transition count 1859
Ensure Unique test removed 1 places
Reduce places removed 30 places and 0 transitions.
Iterating post reduction 6 with 30 rules applied. Total rules applied 659 place count 895 transition count 1859
Drop transitions (Redundant composition of simpler transitions.) removed 1 transitions
Redundant transition composition rules discarded 1 transitions
Iterating global reduction 7 with 1 rules applied. Total rules applied 660 place count 895 transition count 1858
Partial Free-agglomeration rule applied 21 times.
Drop transitions (Partial Free agglomeration) removed 21 transitions
Iterating global reduction 7 with 21 rules applied. Total rules applied 681 place count 895 transition count 1858
Applied a total of 681 rules in 519 ms. Remains 895 /1222 variables (removed 327) and now considering 1858/2191 (removed 333) transitions.
// Phase 1: matrix 1858 rows 895 cols
[2026-05-25 06:10:36] [INFO ] Computed 131 invariants in 16 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 06:10:37] [INFO ] Implicit Places using invariants in 946 ms returned [104, 111, 114, 116, 119, 129, 130, 209, 215, 218, 220, 225, 226, 302, 308, 311, 313, 318, 319, 385, 391, 394, 396, 401, 402, 470, 476, 479, 481, 486, 487, 563, 569, 572, 574, 579, 580, 655, 661, 664, 666, 671, 672, 738, 744, 747, 749, 754, 755, 821, 827, 830, 832]
[2026-05-25 06:10:37] [INFO ] Actually due to overlaps returned [129, 225, 318, 401, 486, 579, 671, 754, 319, 402, 487, 580, 672, 755, 130, 226, 104, 116, 215, 220, 308, 313, 385, 391, 396, 476, 481, 569, 574, 655, 661, 666, 738, 744, 749, 821, 827, 832, 111, 119, 209, 302, 470, 563]
Discarding 44 places :
Implicit Place search using SMT only with invariants took 951 ms to find 44 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 2 : 851/1315 places, 1858/2191 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Iterating post reduction 0 with 1 rules applied. Total rules applied 1 place count 851 transition count 1857
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 1 with 1 rules applied. Total rules applied 2 place count 850 transition count 1857
Discarding 29 places :
Symmetric choice reduction at 2 with 29 rule applications. Total rules 31 place count 821 transition count 1828
Iterating global reduction 2 with 29 rules applied. Total rules applied 60 place count 821 transition count 1828
Discarding 4 places :
Symmetric choice reduction at 2 with 4 rule applications. Total rules 64 place count 817 transition count 1824
Iterating global reduction 2 with 4 rules applied. Total rules applied 68 place count 817 transition count 1824
Performed 11 Post agglomeration using F-continuation condition.Transition count delta: 11
Deduced a syphon composed of 11 places in 3 ms
Reduce places removed 11 places and 0 transitions.
Iterating global reduction 2 with 22 rules applied. Total rules applied 90 place count 806 transition count 1813
Drop transitions (Redundant composition of simpler transitions.) removed 1 transitions
Redundant transition composition rules discarded 1 transitions
Iterating global reduction 2 with 1 rules applied. Total rules applied 91 place count 806 transition count 1812
Free-agglomeration rule applied 27 times.
Iterating global reduction 2 with 27 rules applied. Total rules applied 118 place count 806 transition count 1785
Reduce places removed 27 places and 0 transitions.
Iterating post reduction 2 with 27 rules applied. Total rules applied 145 place count 779 transition count 1785
Applied a total of 145 rules in 435 ms. Remains 779 /851 variables (removed 72) and now considering 1785/1858 (removed 73) transitions.
// Phase 1: matrix 1785 rows 779 cols
[2026-05-25 06:10:37] [INFO ] Computed 87 invariants in 36 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 06:10:38] [INFO ] Implicit Places using invariants in 777 ms returned []
[2026-05-25 06:10:38] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 06:10:40] [INFO ] Implicit Places using invariants and state equation in 2135 ms returned []
Implicit Place search using SMT with State Equation took 2927 ms to find 0 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 3 : 779/1315 places, 1785/2191 transitions.
Finished structural reductions in REACHABILITY mode , in 3 iterations and 6301 ms. Remains : 779/1315 places, 1785/2191 transitions.
RANDOM walk for 4000000 steps (66604 resets) in 42378 ms. (94 steps per ms) remains 56/60 properties
BEST_FIRST walk for 400003 steps (1008 resets) in 1084 ms. (368 steps per ms) remains 56/56 properties
BEST_FIRST walk for 400003 steps (1014 resets) in 931 ms. (429 steps per ms) remains 56/56 properties
BEST_FIRST walk for 400003 steps (1011 resets) in 1049 ms. (380 steps per ms) remains 56/56 properties
BEST_FIRST walk for 400003 steps (1026 resets) in 903 ms. (442 steps per ms) remains 56/56 properties
BEST_FIRST walk for 400002 steps (1016 resets) in 1103 ms. (362 steps per ms) remains 56/56 properties
BEST_FIRST walk for 400004 steps (1007 resets) in 964 ms. (414 steps per ms) remains 56/56 properties
BEST_FIRST walk for 400004 steps (1011 resets) in 1077 ms. (371 steps per ms) remains 56/56 properties
BEST_FIRST walk for 400004 steps (1005 resets) in 935 ms. (427 steps per ms) remains 55/56 properties
BEST_FIRST walk for 400003 steps (1014 resets) in 1035 ms. (386 steps per ms) remains 55/55 properties
BEST_FIRST walk for 400003 steps (1008 resets) in 988 ms. (404 steps per ms) remains 55/55 properties
BEST_FIRST walk for 400003 steps (1020 resets) in 1007 ms. (396 steps per ms) remains 55/55 properties
BEST_FIRST walk for 400004 steps (1032 resets) in 945 ms. (422 steps per ms) remains 55/55 properties
BEST_FIRST walk for 400004 steps (1013 resets) in 956 ms. (417 steps per ms) remains 54/55 properties
BEST_FIRST walk for 400003 steps (1008 resets) in 1081 ms. (369 steps per ms) remains 54/54 properties
BEST_FIRST walk for 400003 steps (1018 resets) in 906 ms. (441 steps per ms) remains 54/54 properties
BEST_FIRST walk for 400004 steps (995 resets) in 1110 ms. (360 steps per ms) remains 54/54 properties
BEST_FIRST walk for 400004 steps (994 resets) in 972 ms. (411 steps per ms) remains 54/54 properties
BEST_FIRST walk for 400004 steps (1006 resets) in 1021 ms. (391 steps per ms) remains 54/54 properties
BEST_FIRST walk for 400004 steps (1010 resets) in 911 ms. (438 steps per ms) remains 54/54 properties
BEST_FIRST walk for 400003 steps (1012 resets) in 1017 ms. (392 steps per ms) remains 54/54 properties
BEST_FIRST walk for 400003 steps (1012 resets) in 939 ms. (425 steps per ms) remains 54/54 properties
BEST_FIRST walk for 400004 steps (1036 resets) in 1066 ms. (374 steps per ms) remains 54/54 properties
BEST_FIRST walk for 400004 steps (1010 resets) in 985 ms. (405 steps per ms) remains 54/54 properties
BEST_FIRST walk for 400003 steps (1015 resets) in 906 ms. (441 steps per ms) remains 54/54 properties
BEST_FIRST walk for 400003 steps (1019 resets) in 981 ms. (407 steps per ms) remains 54/54 properties
BEST_FIRST walk for 400004 steps (1015 resets) in 984 ms. (406 steps per ms) remains 54/54 properties
BEST_FIRST walk for 400003 steps (1014 resets) in 935 ms. (427 steps per ms) remains 54/54 properties
BEST_FIRST walk for 400003 steps (1013 resets) in 903 ms. (442 steps per ms) remains 54/54 properties
BEST_FIRST walk for 400004 steps (1017 resets) in 1070 ms. (373 steps per ms) remains 54/54 properties
BEST_FIRST walk for 400002 steps (1017 resets) in 983 ms. (406 steps per ms) remains 54/54 properties
BEST_FIRST walk for 400003 steps (1016 resets) in 1042 ms. (383 steps per ms) remains 54/54 properties
BEST_FIRST walk for 400003 steps (999 resets) in 1022 ms. (391 steps per ms) remains 54/54 properties
BEST_FIRST walk for 400004 steps (1012 resets) in 995 ms. (401 steps per ms) remains 54/54 properties
BEST_FIRST walk for 400004 steps (1029 resets) in 1054 ms. (379 steps per ms) remains 54/54 properties
BEST_FIRST walk for 400004 steps (1037 resets) in 909 ms. (439 steps per ms) remains 54/54 properties
BEST_FIRST walk for 400004 steps (1005 resets) in 1068 ms. (374 steps per ms) remains 54/54 properties
BEST_FIRST walk for 400004 steps (1019 resets) in 1001 ms. (399 steps per ms) remains 54/54 properties
BEST_FIRST walk for 400003 steps (1022 resets) in 932 ms. (428 steps per ms) remains 54/54 properties
BEST_FIRST walk for 400003 steps (1016 resets) in 1038 ms. (384 steps per ms) remains 54/54 properties
BEST_FIRST walk for 400003 steps (1005 resets) in 1005 ms. (397 steps per ms) remains 54/54 properties
BEST_FIRST walk for 400003 steps (1014 resets) in 1083 ms. (369 steps per ms) remains 54/54 properties
BEST_FIRST walk for 400004 steps (1021 resets) in 933 ms. (428 steps per ms) remains 54/54 properties
BEST_FIRST walk for 400004 steps (1006 resets) in 1028 ms. (388 steps per ms) remains 54/54 properties
BEST_FIRST walk for 400004 steps (1019 resets) in 968 ms. (412 steps per ms) remains 54/54 properties
BEST_FIRST walk for 400004 steps (1011 resets) in 1031 ms. (387 steps per ms) remains 54/54 properties
BEST_FIRST walk for 400003 steps (1005 resets) in 1061 ms. (376 steps per ms) remains 54/54 properties
BEST_FIRST walk for 400003 steps (1013 resets) in 949 ms. (421 steps per ms) remains 54/54 properties
BEST_FIRST walk for 400004 steps (1016 resets) in 1045 ms. (382 steps per ms) remains 54/54 properties
BEST_FIRST walk for 400004 steps (1020 resets) in 935 ms. (427 steps per ms) remains 54/54 properties
BEST_FIRST walk for 400004 steps (1024 resets) in 851 ms. (469 steps per ms) remains 54/54 properties
BEST_FIRST walk for 400004 steps (1029 resets) in 821 ms. (486 steps per ms) remains 54/54 properties
BEST_FIRST walk for 400003 steps (1020 resets) in 976 ms. (409 steps per ms) remains 54/54 properties
BEST_FIRST walk for 400004 steps (1013 resets) in 870 ms. (459 steps per ms) remains 54/54 properties
BEST_FIRST walk for 400004 steps (1024 resets) in 1090 ms. (366 steps per ms) remains 54/54 properties
[2026-05-25 06:11:10] [INFO ] Invariant cache hit.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/54 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 54 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/54 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 54 unsolved
At refinement iteration 2 (OVERLAPS) 9/63 variables, 5/6 constraints. Problems are: Problem set: 0 solved, 54 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/63 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 54 unsolved
At refinement iteration 4 (OVERLAPS) 408/471 variables, 35/41 constraints. Problems are: Problem set: 0 solved, 54 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/471 variables, 0/41 constraints. Problems are: Problem set: 0 solved, 54 unsolved
At refinement iteration 6 (OVERLAPS) 9/480 variables, 7/48 constraints. Problems are: Problem set: 0 solved, 54 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/480 variables, 0/48 constraints. Problems are: Problem set: 0 solved, 54 unsolved
At refinement iteration 8 (OVERLAPS) 216/696 variables, 25/73 constraints. Problems are: Problem set: 0 solved, 54 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/696 variables, 0/73 constraints. Problems are: Problem set: 0 solved, 54 unsolved
At refinement iteration 10 (OVERLAPS) 48/744 variables, 5/78 constraints. Problems are: Problem set: 0 solved, 54 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/744 variables, 0/78 constraints. Problems are: Problem set: 0 solved, 54 unsolved
At refinement iteration 12 (OVERLAPS) 35/779 variables, 9/87 constraints. Problems are: Problem set: 0 solved, 54 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/779 variables, 0/87 constraints. Problems are: Problem set: 0 solved, 54 unsolved
At refinement iteration 14 (OVERLAPS) 1785/2564 variables, 779/866 constraints. Problems are: Problem set: 0 solved, 54 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/2564 variables, 0/866 constraints. Problems are: Problem set: 0 solved, 54 unsolved
At refinement iteration 16 (OVERLAPS) 0/2564 variables, 0/866 constraints. Problems are: Problem set: 0 solved, 54 unsolved
No progress, stopping.
After SMT solving in domain Real declared 2564/2564 variables, and 866 constraints, problems are : Problem set: 0 solved, 54 unsolved in 14205 ms.
Refiners :[Positive P Invariants (semi-flows): 17/17 constraints, Generalized P Invariants (flows): 70/70 constraints, State Equation: 779/779 constraints, PredecessorRefiner: 54/54 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 54 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/54 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 54 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/54 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 54 unsolved
At refinement iteration 2 (OVERLAPS) 9/63 variables, 5/6 constraints. Problems are: Problem set: 0 solved, 54 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/63 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 54 unsolved
At refinement iteration 4 (OVERLAPS) 408/471 variables, 35/41 constraints. Problems are: Problem set: 0 solved, 54 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/471 variables, 0/41 constraints. Problems are: Problem set: 0 solved, 54 unsolved
At refinement iteration 6 (OVERLAPS) 9/480 variables, 7/48 constraints. Problems are: Problem set: 0 solved, 54 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/480 variables, 0/48 constraints. Problems are: Problem set: 0 solved, 54 unsolved
At refinement iteration 8 (OVERLAPS) 216/696 variables, 25/73 constraints. Problems are: Problem set: 0 solved, 54 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/696 variables, 0/73 constraints. Problems are: Problem set: 0 solved, 54 unsolved
At refinement iteration 10 (OVERLAPS) 48/744 variables, 5/78 constraints. Problems are: Problem set: 0 solved, 54 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/744 variables, 0/78 constraints. Problems are: Problem set: 0 solved, 54 unsolved
At refinement iteration 12 (OVERLAPS) 35/779 variables, 9/87 constraints. Problems are: Problem set: 0 solved, 54 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 06:11:36] [INFO ] Deduced a trap composed of 13 places in 110 ms of which 7 ms to minimize.
At refinement iteration 13 (INCLUDED_ONLY) 0/779 variables, 1/88 constraints. Problems are: Problem set: 0 solved, 54 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/779 variables, 0/88 constraints. Problems are: Problem set: 0 solved, 54 unsolved
At refinement iteration 15 (OVERLAPS) 1785/2564 variables, 779/867 constraints. Problems are: Problem set: 0 solved, 54 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/2564 variables, 54/921 constraints. Problems are: Problem set: 0 solved, 54 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/2564 variables, 0/921 constraints. Problems are: Problem set: 0 solved, 54 unsolved
At refinement iteration 18 (OVERLAPS) 0/2564 variables, 0/921 constraints. Problems are: Problem set: 0 solved, 54 unsolved
No progress, stopping.
After SMT solving in domain Int declared 2564/2564 variables, and 921 constraints, problems are : Problem set: 0 solved, 54 unsolved in 43425 ms.
Refiners :[Positive P Invariants (semi-flows): 17/17 constraints, Generalized P Invariants (flows): 70/70 constraints, State Equation: 779/779 constraints, PredecessorRefiner: 54/54 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 57653ms problems are : Problem set: 0 solved, 54 unsolved
Fused 54 Parikh solutions to 36 different solutions.
Parikh walk visited 0 properties in 29149 ms.
Support contains 54 out of 779 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 779/779 places, 1785/1785 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 4 transitions
Trivial Post-agglo rules discarded 4 transitions
Performed 4 trivial Post agglomeration. Transition count delta: 4
Iterating post reduction 0 with 4 rules applied. Total rules applied 4 place count 779 transition count 1781
Reduce places removed 4 places and 0 transitions.
Iterating post reduction 1 with 4 rules applied. Total rules applied 8 place count 775 transition count 1781
Discarding 2 places :
Symmetric choice reduction at 2 with 2 rule applications. Total rules 10 place count 773 transition count 1779
Iterating global reduction 2 with 2 rules applied. Total rules applied 12 place count 773 transition count 1779
Discarding 2 places :
Symmetric choice reduction at 2 with 2 rule applications. Total rules 14 place count 771 transition count 1777
Iterating global reduction 2 with 2 rules applied. Total rules applied 16 place count 771 transition count 1777
Applied a total of 16 rules in 75 ms. Remains 771 /779 variables (removed 8) and now considering 1777/1785 (removed 8) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 75 ms. Remains : 771/779 places, 1777/1785 transitions.
RANDOM walk for 4000000 steps (66553 resets) in 40570 ms. (98 steps per ms) remains 48/54 properties
BEST_FIRST walk for 400003 steps (1006 resets) in 892 ms. (447 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400004 steps (1005 resets) in 995 ms. (401 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400004 steps (1002 resets) in 987 ms. (404 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400003 steps (1025 resets) in 901 ms. (443 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400002 steps (1017 resets) in 996 ms. (401 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400004 steps (1022 resets) in 982 ms. (406 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400002 steps (1025 resets) in 839 ms. (476 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400003 steps (1019 resets) in 886 ms. (450 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400003 steps (1020 resets) in 871 ms. (458 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400004 steps (1012 resets) in 954 ms. (418 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400004 steps (1007 resets) in 888 ms. (449 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400004 steps (1021 resets) in 966 ms. (413 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400004 steps (998 resets) in 941 ms. (424 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400004 steps (1018 resets) in 1045 ms. (382 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400004 steps (1010 resets) in 929 ms. (430 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400004 steps (1025 resets) in 940 ms. (425 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400003 steps (1010 resets) in 964 ms. (414 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400002 steps (1003 resets) in 917 ms. (435 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400003 steps (1008 resets) in 988 ms. (404 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400003 steps (1014 resets) in 875 ms. (456 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400004 steps (1028 resets) in 832 ms. (480 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400004 steps (1017 resets) in 974 ms. (410 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400004 steps (1018 resets) in 880 ms. (454 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400003 steps (1014 resets) in 999 ms. (400 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400004 steps (1012 resets) in 896 ms. (445 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400002 steps (1004 resets) in 975 ms. (409 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400002 steps (1011 resets) in 962 ms. (415 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400004 steps (1002 resets) in 912 ms. (438 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400004 steps (1000 resets) in 1029 ms. (388 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400004 steps (1008 resets) in 884 ms. (451 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400003 steps (1019 resets) in 1031 ms. (387 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400004 steps (1020 resets) in 909 ms. (439 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400004 steps (1008 resets) in 864 ms. (462 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400003 steps (1005 resets) in 959 ms. (416 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400003 steps (1005 resets) in 953 ms. (419 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400004 steps (1020 resets) in 983 ms. (406 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400004 steps (1014 resets) in 967 ms. (413 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400003 steps (1006 resets) in 949 ms. (421 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400003 steps (1006 resets) in 859 ms. (465 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400004 steps (1006 resets) in 989 ms. (404 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400003 steps (1010 resets) in 878 ms. (455 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400002 steps (1014 resets) in 918 ms. (435 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400003 steps (1008 resets) in 833 ms. (479 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400004 steps (1013 resets) in 987 ms. (404 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400004 steps (1026 resets) in 1033 ms. (386 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400004 steps (1024 resets) in 900 ms. (443 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400003 steps (1011 resets) in 976 ms. (409 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400004 steps (1018 resets) in 924 ms. (432 steps per ms) remains 48/48 properties
// Phase 1: matrix 1777 rows 771 cols
[2026-05-25 06:13:03] [INFO ] Computed 87 invariants in 13 ms
Starting Z3 with timeout 135.0 s and query timeout 13500.0 ms
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/48 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 48 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/48 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 48 unsolved
At refinement iteration 2 (OVERLAPS) 9/57 variables, 5/6 constraints. Problems are: Problem set: 0 solved, 48 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/57 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 48 unsolved
At refinement iteration 4 (OVERLAPS) 388/445 variables, 33/39 constraints. Problems are: Problem set: 0 solved, 48 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/445 variables, 0/39 constraints. Problems are: Problem set: 0 solved, 48 unsolved
At refinement iteration 6 (OVERLAPS) 9/454 variables, 7/46 constraints. Problems are: Problem set: 0 solved, 48 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/454 variables, 0/46 constraints. Problems are: Problem set: 0 solved, 48 unsolved
At refinement iteration 8 (OVERLAPS) 234/688 variables, 27/73 constraints. Problems are: Problem set: 0 solved, 48 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/688 variables, 0/73 constraints. Problems are: Problem set: 0 solved, 48 unsolved
At refinement iteration 10 (OVERLAPS) 34/722 variables, 5/78 constraints. Problems are: Problem set: 0 solved, 48 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/722 variables, 0/78 constraints. Problems are: Problem set: 0 solved, 48 unsolved
At refinement iteration 12 (OVERLAPS) 49/771 variables, 9/87 constraints. Problems are: Problem set: 0 solved, 48 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/771 variables, 0/87 constraints. Problems are: Problem set: 0 solved, 48 unsolved
At refinement iteration 14 (OVERLAPS) 1777/2548 variables, 771/858 constraints. Problems are: Problem set: 0 solved, 48 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/2548 variables, 0/858 constraints. Problems are: Problem set: 0 solved, 48 unsolved
At refinement iteration 16 (OVERLAPS) 0/2548 variables, 0/858 constraints. Problems are: Problem set: 0 solved, 48 unsolved
No progress, stopping.
After SMT solving in domain Real declared 2548/2548 variables, and 858 constraints, problems are : Problem set: 0 solved, 48 unsolved in 9562 ms.
Refiners :[Positive P Invariants (semi-flows): 17/17 constraints, Generalized P Invariants (flows): 70/70 constraints, State Equation: 771/771 constraints, PredecessorRefiner: 48/48 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 48 unsolved
Starting Z3 with timeout 135.0 s and query timeout 13500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/48 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 48 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/48 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 48 unsolved
At refinement iteration 2 (OVERLAPS) 9/57 variables, 5/6 constraints. Problems are: Problem set: 0 solved, 48 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/57 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 48 unsolved
At refinement iteration 4 (OVERLAPS) 388/445 variables, 33/39 constraints. Problems are: Problem set: 0 solved, 48 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/445 variables, 0/39 constraints. Problems are: Problem set: 0 solved, 48 unsolved
At refinement iteration 6 (OVERLAPS) 9/454 variables, 7/46 constraints. Problems are: Problem set: 0 solved, 48 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/454 variables, 0/46 constraints. Problems are: Problem set: 0 solved, 48 unsolved
At refinement iteration 8 (OVERLAPS) 234/688 variables, 27/73 constraints. Problems are: Problem set: 0 solved, 48 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/688 variables, 0/73 constraints. Problems are: Problem set: 0 solved, 48 unsolved
At refinement iteration 10 (OVERLAPS) 34/722 variables, 5/78 constraints. Problems are: Problem set: 0 solved, 48 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/722 variables, 0/78 constraints. Problems are: Problem set: 0 solved, 48 unsolved
At refinement iteration 12 (OVERLAPS) 49/771 variables, 9/87 constraints. Problems are: Problem set: 0 solved, 48 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/771 variables, 0/87 constraints. Problems are: Problem set: 0 solved, 48 unsolved
At refinement iteration 14 (OVERLAPS) 1777/2548 variables, 771/858 constraints. Problems are: Problem set: 0 solved, 48 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/2548 variables, 48/906 constraints. Problems are: Problem set: 0 solved, 48 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/2548 variables, 0/906 constraints. Problems are: Problem set: 0 solved, 48 unsolved
At refinement iteration 17 (OVERLAPS) 0/2548 variables, 0/906 constraints. Problems are: Problem set: 0 solved, 48 unsolved
No progress, stopping.
After SMT solving in domain Int declared 2548/2548 variables, and 906 constraints, problems are : Problem set: 0 solved, 48 unsolved in 32534 ms.
Refiners :[Positive P Invariants (semi-flows): 17/17 constraints, Generalized P Invariants (flows): 70/70 constraints, State Equation: 771/771 constraints, PredecessorRefiner: 48/48 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 42143ms problems are : Problem set: 0 solved, 48 unsolved
Fused 48 Parikh solutions to 31 different solutions.
Parikh walk visited 0 properties in 30669 ms.
Support contains 48 out of 771 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 771/771 places, 1777/1777 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 4 transitions
Trivial Post-agglo rules discarded 4 transitions
Performed 4 trivial Post agglomeration. Transition count delta: 4
Iterating post reduction 0 with 4 rules applied. Total rules applied 4 place count 771 transition count 1773
Reduce places removed 4 places and 0 transitions.
Iterating post reduction 1 with 4 rules applied. Total rules applied 8 place count 767 transition count 1773
Discarding 2 places :
Symmetric choice reduction at 2 with 2 rule applications. Total rules 10 place count 765 transition count 1771
Iterating global reduction 2 with 2 rules applied. Total rules applied 12 place count 765 transition count 1771
Discarding 1 places :
Symmetric choice reduction at 2 with 1 rule applications. Total rules 13 place count 764 transition count 1770
Iterating global reduction 2 with 1 rules applied. Total rules applied 14 place count 764 transition count 1770
Applied a total of 14 rules in 75 ms. Remains 764 /771 variables (removed 7) and now considering 1770/1777 (removed 7) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 75 ms. Remains : 764/771 places, 1770/1777 transitions.
RANDOM walk for 4000000 steps (66871 resets) in 38168 ms. (104 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400004 steps (1015 resets) in 932 ms. (428 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400004 steps (1019 resets) in 893 ms. (447 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400004 steps (1026 resets) in 997 ms. (400 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400003 steps (1019 resets) in 970 ms. (411 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400002 steps (1012 resets) in 1010 ms. (395 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400004 steps (1009 resets) in 992 ms. (402 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400003 steps (1000 resets) in 1035 ms. (386 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400004 steps (1027 resets) in 987 ms. (404 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400004 steps (1012 resets) in 1007 ms. (396 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400003 steps (1017 resets) in 950 ms. (420 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400004 steps (1002 resets) in 1028 ms. (388 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400003 steps (1011 resets) in 929 ms. (430 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400002 steps (1023 resets) in 962 ms. (415 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400004 steps (1026 resets) in 951 ms. (420 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400004 steps (1010 resets) in 876 ms. (456 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400003 steps (1019 resets) in 1021 ms. (391 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400004 steps (1020 resets) in 915 ms. (436 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400003 steps (1017 resets) in 991 ms. (403 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400003 steps (999 resets) in 950 ms. (420 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400003 steps (1004 resets) in 984 ms. (406 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400003 steps (1011 resets) in 882 ms. (453 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400003 steps (1007 resets) in 962 ms. (415 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400003 steps (1024 resets) in 888 ms. (449 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400004 steps (1013 resets) in 976 ms. (409 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400003 steps (1017 resets) in 981 ms. (407 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400004 steps (1005 resets) in 938 ms. (425 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400003 steps (1013 resets) in 1000 ms. (399 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400004 steps (1021 resets) in 883 ms. (452 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400004 steps (1009 resets) in 988 ms. (404 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400004 steps (1016 resets) in 983 ms. (406 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400004 steps (1015 resets) in 952 ms. (419 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400003 steps (1019 resets) in 965 ms. (414 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400004 steps (1010 resets) in 953 ms. (419 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400004 steps (1015 resets) in 909 ms. (439 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400004 steps (1010 resets) in 1012 ms. (394 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400004 steps (1016 resets) in 934 ms. (427 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400004 steps (1021 resets) in 900 ms. (443 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400003 steps (1014 resets) in 1199 ms. (333 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400004 steps (1027 resets) in 1506 ms. (265 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400003 steps (1014 resets) in 1516 ms. (263 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400003 steps (1020 resets) in 1463 ms. (273 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400004 steps (1009 resets) in 1432 ms. (279 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400002 steps (1031 resets) in 1247 ms. (320 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400003 steps (1024 resets) in 1156 ms. (345 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400004 steps (1022 resets) in 901 ms. (443 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400003 steps (1015 resets) in 960 ms. (416 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400004 steps (1005 resets) in 975 ms. (409 steps per ms) remains 48/48 properties
BEST_FIRST walk for 400004 steps (1025 resets) in 935 ms. (427 steps per ms) remains 48/48 properties
Detected timeout of ITS tools.
Interrupted probabilistic random walk after 3374660 steps, run timeout after 78001 ms. (steps per millisecond=43 ) properties seen :7 out of 48
Probabilistic random walk after 3374660 steps, saw 1732417 distinct states, run finished after 78001 ms. (steps per millisecond=43 ) properties seen :7
// Phase 1: matrix 1770 rows 764 cols
[2026-05-25 06:16:00] [INFO ] Computed 87 invariants in 13 ms
Starting Z3 with timeout 150.0 s and query timeout 15000.0 ms
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/41 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/41 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 2 (OVERLAPS) 9/50 variables, 5/6 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/50 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 4 (OVERLAPS) 337/387 variables, 28/34 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/387 variables, 0/34 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 6 (OVERLAPS) 19/406 variables, 7/41 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/406 variables, 0/41 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 8 (OVERLAPS) 3/409 variables, 1/42 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/409 variables, 0/42 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 10 (OVERLAPS) 13/422 variables, 1/43 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/422 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 12 (OVERLAPS) 33/455 variables, 2/45 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/455 variables, 0/45 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 14 (OVERLAPS) 275/730 variables, 37/82 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/730 variables, 0/82 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 16 (OVERLAPS) 18/748 variables, 3/85 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/748 variables, 0/85 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 18 (OVERLAPS) 16/764 variables, 2/87 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/764 variables, 0/87 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 20 (OVERLAPS) 1770/2534 variables, 764/851 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/2534 variables, 0/851 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 22 (OVERLAPS) 0/2534 variables, 0/851 constraints. Problems are: Problem set: 0 solved, 41 unsolved
No progress, stopping.
After SMT solving in domain Real declared 2534/2534 variables, and 851 constraints, problems are : Problem set: 0 solved, 41 unsolved in 8925 ms.
Refiners :[Positive P Invariants (semi-flows): 19/19 constraints, Generalized P Invariants (flows): 68/68 constraints, State Equation: 764/764 constraints, PredecessorRefiner: 41/41 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 41 unsolved
Starting Z3 with timeout 150.0 s and query timeout 15000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/41 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/41 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 2 (OVERLAPS) 9/50 variables, 5/6 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/50 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 4 (OVERLAPS) 337/387 variables, 28/34 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/387 variables, 0/34 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 6 (OVERLAPS) 19/406 variables, 7/41 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/406 variables, 0/41 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 8 (OVERLAPS) 3/409 variables, 1/42 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/409 variables, 0/42 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 10 (OVERLAPS) 13/422 variables, 1/43 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/422 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 12 (OVERLAPS) 33/455 variables, 2/45 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/455 variables, 0/45 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 14 (OVERLAPS) 275/730 variables, 37/82 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/730 variables, 0/82 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 16 (OVERLAPS) 18/748 variables, 3/85 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/748 variables, 0/85 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 18 (OVERLAPS) 16/764 variables, 2/87 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/764 variables, 0/87 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 20 (OVERLAPS) 1770/2534 variables, 764/851 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/2534 variables, 41/892 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/2534 variables, 0/892 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 23 (OVERLAPS) 0/2534 variables, 0/892 constraints. Problems are: Problem set: 0 solved, 41 unsolved
No progress, stopping.
After SMT solving in domain Int declared 2534/2534 variables, and 892 constraints, problems are : Problem set: 0 solved, 41 unsolved in 36098 ms.
Refiners :[Positive P Invariants (semi-flows): 19/19 constraints, Generalized P Invariants (flows): 68/68 constraints, State Equation: 764/764 constraints, PredecessorRefiner: 41/41 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 45070ms problems are : Problem set: 0 solved, 41 unsolved
Fused 41 Parikh solutions to 27 different solutions.
Parikh walk visited 0 properties in 18095 ms.
Support contains 41 out of 764 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 764/764 places, 1770/1770 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 3 transitions
Trivial Post-agglo rules discarded 3 transitions
Performed 3 trivial Post agglomeration. Transition count delta: 3
Iterating post reduction 0 with 3 rules applied. Total rules applied 3 place count 764 transition count 1767
Reduce places removed 3 places and 0 transitions.
Iterating post reduction 1 with 3 rules applied. Total rules applied 6 place count 761 transition count 1767
Performed 4 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 4 Pre rules applied. Total rules applied 6 place count 761 transition count 1763
Deduced a syphon composed of 4 places in 2 ms
Ensure Unique test removed 2 places
Reduce places removed 6 places and 0 transitions.
Iterating global reduction 2 with 10 rules applied. Total rules applied 16 place count 755 transition count 1763
Applied a total of 16 rules in 39 ms. Remains 755 /764 variables (removed 9) and now considering 1763/1770 (removed 7) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 39 ms. Remains : 755/764 places, 1763/1770 transitions.
RANDOM walk for 4000000 steps (66560 resets) in 28242 ms. (141 steps per ms) remains 41/41 properties
BEST_FIRST walk for 400004 steps (1021 resets) in 719 ms. (555 steps per ms) remains 41/41 properties
BEST_FIRST walk for 400004 steps (1020 resets) in 736 ms. (542 steps per ms) remains 41/41 properties
BEST_FIRST walk for 400002 steps (1017 resets) in 679 ms. (588 steps per ms) remains 41/41 properties
BEST_FIRST walk for 400004 steps (1007 resets) in 645 ms. (619 steps per ms) remains 41/41 properties
BEST_FIRST walk for 400004 steps (1008 resets) in 699 ms. (571 steps per ms) remains 41/41 properties
BEST_FIRST walk for 400003 steps (1019 resets) in 654 ms. (610 steps per ms) remains 41/41 properties
BEST_FIRST walk for 400004 steps (1014 resets) in 643 ms. (621 steps per ms) remains 41/41 properties
BEST_FIRST walk for 400004 steps (1014 resets) in 673 ms. (593 steps per ms) remains 41/41 properties
BEST_FIRST walk for 400003 steps (1011 resets) in 660 ms. (605 steps per ms) remains 41/41 properties
BEST_FIRST walk for 400004 steps (1008 resets) in 668 ms. (597 steps per ms) remains 41/41 properties
BEST_FIRST walk for 400004 steps (1024 resets) in 657 ms. (607 steps per ms) remains 41/41 properties
BEST_FIRST walk for 400004 steps (1009 resets) in 651 ms. (613 steps per ms) remains 41/41 properties
BEST_FIRST walk for 400003 steps (1014 resets) in 670 ms. (596 steps per ms) remains 41/41 properties
BEST_FIRST walk for 400004 steps (1021 resets) in 684 ms. (583 steps per ms) remains 41/41 properties
BEST_FIRST walk for 400003 steps (1001 resets) in 664 ms. (601 steps per ms) remains 41/41 properties
BEST_FIRST walk for 400004 steps (1025 resets) in 670 ms. (596 steps per ms) remains 41/41 properties
BEST_FIRST walk for 400004 steps (1009 resets) in 652 ms. (612 steps per ms) remains 41/41 properties
BEST_FIRST walk for 400003 steps (1018 resets) in 674 ms. (592 steps per ms) remains 41/41 properties
BEST_FIRST walk for 400004 steps (1007 resets) in 673 ms. (593 steps per ms) remains 41/41 properties
BEST_FIRST walk for 400004 steps (1016 resets) in 648 ms. (616 steps per ms) remains 41/41 properties
BEST_FIRST walk for 400004 steps (1013 resets) in 689 ms. (579 steps per ms) remains 41/41 properties
BEST_FIRST walk for 400003 steps (1026 resets) in 720 ms. (554 steps per ms) remains 41/41 properties
BEST_FIRST walk for 400001 steps (1008 resets) in 675 ms. (591 steps per ms) remains 41/41 properties
BEST_FIRST walk for 400002 steps (1025 resets) in 671 ms. (595 steps per ms) remains 41/41 properties
BEST_FIRST walk for 400004 steps (1012 resets) in 711 ms. (561 steps per ms) remains 41/41 properties
BEST_FIRST walk for 400004 steps (1004 resets) in 720 ms. (554 steps per ms) remains 41/41 properties
BEST_FIRST walk for 400004 steps (1018 resets) in 655 ms. (609 steps per ms) remains 41/41 properties
BEST_FIRST walk for 400004 steps (1024 resets) in 640 ms. (624 steps per ms) remains 41/41 properties
BEST_FIRST walk for 400004 steps (1029 resets) in 667 ms. (598 steps per ms) remains 41/41 properties
BEST_FIRST walk for 400004 steps (1002 resets) in 702 ms. (568 steps per ms) remains 41/41 properties
BEST_FIRST walk for 400003 steps (1029 resets) in 676 ms. (590 steps per ms) remains 41/41 properties
BEST_FIRST walk for 400003 steps (1013 resets) in 672 ms. (594 steps per ms) remains 41/41 properties
BEST_FIRST walk for 400004 steps (1023 resets) in 642 ms. (622 steps per ms) remains 41/41 properties
BEST_FIRST walk for 400004 steps (1002 resets) in 666 ms. (599 steps per ms) remains 41/41 properties
BEST_FIRST walk for 400004 steps (1010 resets) in 857 ms. (466 steps per ms) remains 41/41 properties
BEST_FIRST walk for 400004 steps (1015 resets) in 668 ms. (597 steps per ms) remains 41/41 properties
BEST_FIRST walk for 400003 steps (1018 resets) in 696 ms. (573 steps per ms) remains 41/41 properties
BEST_FIRST walk for 400003 steps (1040 resets) in 660 ms. (605 steps per ms) remains 41/41 properties
BEST_FIRST walk for 400003 steps (1019 resets) in 732 ms. (545 steps per ms) remains 41/41 properties
BEST_FIRST walk for 400003 steps (1013 resets) in 760 ms. (525 steps per ms) remains 41/41 properties
BEST_FIRST walk for 400004 steps (1014 resets) in 704 ms. (567 steps per ms) remains 41/41 properties
Interrupted probabilistic random walk after 1835527 steps, run timeout after 45001 ms. (steps per millisecond=40 ) properties seen :0 out of 41
Probabilistic random walk after 1835527 steps, saw 1150574 distinct states, run finished after 45001 ms. (steps per millisecond=40 ) properties seen :0
// Phase 1: matrix 1763 rows 755 cols
[2026-05-25 06:18:04] [INFO ] Computed 85 invariants in 13 ms
Starting Z3 with timeout 165.0 s and query timeout 16500.0 ms
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/41 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/41 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 2 (OVERLAPS) 9/50 variables, 5/6 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/50 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 4 (OVERLAPS) 334/384 variables, 28/34 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/384 variables, 0/34 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 6 (OVERLAPS) 19/403 variables, 7/41 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/403 variables, 0/41 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 8 (OVERLAPS) 269/672 variables, 30/71 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/672 variables, 0/71 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 10 (OVERLAPS) 34/706 variables, 5/76 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/706 variables, 0/76 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 12 (OVERLAPS) 49/755 variables, 9/85 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/755 variables, 0/85 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 14 (OVERLAPS) 1763/2518 variables, 755/840 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/2518 variables, 0/840 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 16 (OVERLAPS) 0/2518 variables, 0/840 constraints. Problems are: Problem set: 0 solved, 41 unsolved
No progress, stopping.
After SMT solving in domain Real declared 2518/2518 variables, and 840 constraints, problems are : Problem set: 0 solved, 41 unsolved in 8242 ms.
Refiners :[Positive P Invariants (semi-flows): 17/17 constraints, Generalized P Invariants (flows): 68/68 constraints, State Equation: 755/755 constraints, PredecessorRefiner: 41/41 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 41 unsolved
Starting Z3 with timeout 165.0 s and query timeout 16500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/41 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/41 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 2 (OVERLAPS) 9/50 variables, 5/6 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/50 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 4 (OVERLAPS) 334/384 variables, 28/34 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/384 variables, 0/34 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 6 (OVERLAPS) 19/403 variables, 7/41 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/403 variables, 0/41 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 8 (OVERLAPS) 269/672 variables, 30/71 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/672 variables, 0/71 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 10 (OVERLAPS) 34/706 variables, 5/76 constraints. Problems are: Problem set: 0 solved, 41 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 06:18:17] [INFO ] Deduced a trap composed of 13 places in 60 ms of which 3 ms to minimize.
At refinement iteration 11 (INCLUDED_ONLY) 0/706 variables, 1/77 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/706 variables, 0/77 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 13 (OVERLAPS) 49/755 variables, 9/86 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/755 variables, 0/86 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 15 (OVERLAPS) 1763/2518 variables, 755/841 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/2518 variables, 41/882 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/2518 variables, 0/882 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 18 (OVERLAPS) 0/2518 variables, 0/882 constraints. Problems are: Problem set: 0 solved, 41 unsolved
No progress, stopping.
After SMT solving in domain Int declared 2518/2518 variables, and 882 constraints, problems are : Problem set: 0 solved, 41 unsolved in 29570 ms.
Refiners :[Positive P Invariants (semi-flows): 17/17 constraints, Generalized P Invariants (flows): 68/68 constraints, State Equation: 755/755 constraints, PredecessorRefiner: 41/41 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 37846ms problems are : Problem set: 0 solved, 41 unsolved
Fused 41 Parikh solutions to 26 different solutions.
Parikh walk visited 0 properties in 20722 ms.
Support contains 41 out of 755 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 755/755 places, 1763/1763 transitions.
Applied a total of 0 rules in 32 ms. Remains 755 /755 variables (removed 0) and now considering 1763/1763 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 32 ms. Remains : 755/755 places, 1763/1763 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 755/755 places, 1763/1763 transitions.
Applied a total of 0 rules in 29 ms. Remains 755 /755 variables (removed 0) and now considering 1763/1763 (removed 0) transitions.
[2026-05-25 06:19:03] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 06:19:03] [INFO ] Implicit Places using invariants in 656 ms returned []
[2026-05-25 06:19:03] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 06:19:05] [INFO ] Implicit Places using invariants and state equation in 1705 ms returned []
Implicit Place search using SMT with State Equation took 2363 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-25 06:19:05] [INFO ] Redundant transitions in 174 ms returned []
Running 1721 sub problems to find dead transitions.
[2026-05-25 06:19:05] [INFO ] Invariant cache hit.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
Error getting values : (error "ParserException while parsing response: ((s0 1.0)
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(s638 1.0)
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(s641 1.0)
(s642 1.0)
(s643 1.0)
(s644 1.0)
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(s656 timeout
org.smtlib.IParser$ParserException: Unbalanced parentheses at end of input")
At refinement iteration 0 (INCLUDED_ONLY) 0/754 variables, 14/14 constraints. Problems are: Problem set: 0 solved, 1721 unsolved
SMT process timed out in 30730ms, After SMT, problems are : Problem set: 0 solved, 1721 unsolved
Search for dead transitions found 0 dead transitions in 30739ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 33330 ms. Remains : 755/755 places, 1763/1763 transitions.
RANDOM walk for 400000 steps (6632 resets) in 3520 ms. (113 steps per ms) remains 41/41 properties
Running SMT prover for 41 properties.
[2026-05-25 06:19:37] [INFO ] Invariant cache hit.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-25 06:19:37] [INFO ] [Real]Absence check using 17 positive place invariants in 4 ms returned sat
[2026-05-25 06:19:37] [INFO ] [Real]Absence check using 17 positive and 68 generalized place invariants in 79 ms returned sat
[2026-05-25 06:19:38] [INFO ] After 671ms SMT Verify possible using state equation in real domain returned unsat :0 sat :41
TRAPS : Iteration 0
[2026-05-25 06:19:44] [INFO ] After 6862ms SMT Verify possible using trap constraints in real domain returned unsat :0 sat :0 real:41
[2026-05-25 06:19:44] [INFO ] After 7079ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:41
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-25 06:19:44] [INFO ] [Nat]Absence check using 17 positive place invariants in 5 ms returned sat
[2026-05-25 06:19:44] [INFO ] [Nat]Absence check using 17 positive and 68 generalized place invariants in 56 ms returned sat
[2026-05-25 06:19:45] [INFO ] After 644ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :41
TRAPS : Iteration 0
[2026-05-25 06:19:51] [INFO ] After 6481ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :41
[2026-05-25 06:19:51] [INFO ] After 6908ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :41
RANDOM walk for 4000000 steps (66444 resets) in 28948 ms. (138 steps per ms) remains 41/41 properties
BEST_FIRST walk for 400004 steps (1000 resets) in 692 ms. (577 steps per ms) remains 41/41 properties
BEST_FIRST walk for 400004 steps (1001 resets) in 683 ms. (584 steps per ms) remains 41/41 properties
BEST_FIRST walk for 400004 steps (1018 resets) in 622 ms. (642 steps per ms) remains 41/41 properties
BEST_FIRST walk for 400004 steps (1006 resets) in 704 ms. (567 steps per ms) remains 41/41 properties
BEST_FIRST walk for 400004 steps (1007 resets) in 644 ms. (620 steps per ms) remains 41/41 properties
BEST_FIRST walk for 400004 steps (1007 resets) in 665 ms. (600 steps per ms) remains 41/41 properties
BEST_FIRST walk for 400004 steps (1007 resets) in 640 ms. (624 steps per ms) remains 41/41 properties
BEST_FIRST walk for 400004 steps (1017 resets) in 648 ms. (616 steps per ms) remains 41/41 properties
BEST_FIRST walk for 400004 steps (1007 resets) in 659 ms. (606 steps per ms) remains 41/41 properties
BEST_FIRST walk for 400003 steps (1020 resets) in 627 ms. (636 steps per ms) remains 41/41 properties
BEST_FIRST walk for 400004 steps (1005 resets) in 663 ms. (602 steps per ms) remains 41/41 properties
BEST_FIRST walk for 400003 steps (1015 resets) in 641 ms. (623 steps per ms) remains 41/41 properties
BEST_FIRST walk for 400003 steps (1017 resets) in 671 ms. (595 steps per ms) remains 41/41 properties
BEST_FIRST walk for 400004 steps (1010 resets) in 638 ms. (625 steps per ms) remains 41/41 properties
BEST_FIRST walk for 400002 steps (1028 resets) in 675 ms. (591 steps per ms) remains 41/41 properties
BEST_FIRST walk for 400004 steps (1026 resets) in 634 ms. (629 steps per ms) remains 41/41 properties
BEST_FIRST walk for 400004 steps (1006 resets) in 673 ms. (593 steps per ms) remains 41/41 properties
BEST_FIRST walk for 400004 steps (1021 resets) in 646 ms. (618 steps per ms) remains 41/41 properties
BEST_FIRST walk for 400003 steps (1020 resets) in 646 ms. (618 steps per ms) remains 41/41 properties
BEST_FIRST walk for 400004 steps (1008 resets) in 667 ms. (598 steps per ms) remains 41/41 properties
BEST_FIRST walk for 400004 steps (1023 resets) in 640 ms. (624 steps per ms) remains 41/41 properties
BEST_FIRST walk for 400002 steps (1014 resets) in 669 ms. (597 steps per ms) remains 41/41 properties
BEST_FIRST walk for 400003 steps (1026 resets) in 632 ms. (631 steps per ms) remains 41/41 properties
BEST_FIRST walk for 400003 steps (1020 resets) in 651 ms. (613 steps per ms) remains 41/41 properties
BEST_FIRST walk for 400003 steps (1010 resets) in 652 ms. (612 steps per ms) remains 41/41 properties
BEST_FIRST walk for 400003 steps (1021 resets) in 659 ms. (606 steps per ms) remains 41/41 properties
BEST_FIRST walk for 400004 steps (1028 resets) in 704 ms. (567 steps per ms) remains 41/41 properties
BEST_FIRST walk for 400003 steps (1012 resets) in 682 ms. (585 steps per ms) remains 41/41 properties
BEST_FIRST walk for 400004 steps (1018 resets) in 800 ms. (499 steps per ms) remains 41/41 properties
BEST_FIRST walk for 400004 steps (998 resets) in 663 ms. (602 steps per ms) remains 41/41 properties
BEST_FIRST walk for 400004 steps (1016 resets) in 685 ms. (583 steps per ms) remains 41/41 properties
BEST_FIRST walk for 400004 steps (1007 resets) in 640 ms. (624 steps per ms) remains 41/41 properties
BEST_FIRST walk for 400004 steps (1020 resets) in 656 ms. (608 steps per ms) remains 41/41 properties
BEST_FIRST walk for 400004 steps (998 resets) in 639 ms. (625 steps per ms) remains 41/41 properties
BEST_FIRST walk for 400003 steps (995 resets) in 656 ms. (608 steps per ms) remains 41/41 properties
BEST_FIRST walk for 400004 steps (1005 resets) in 639 ms. (625 steps per ms) remains 41/41 properties
BEST_FIRST walk for 400003 steps (1017 resets) in 644 ms. (620 steps per ms) remains 41/41 properties
BEST_FIRST walk for 400004 steps (1004 resets) in 643 ms. (621 steps per ms) remains 41/41 properties
BEST_FIRST walk for 400004 steps (1018 resets) in 661 ms. (604 steps per ms) remains 41/41 properties
BEST_FIRST walk for 400004 steps (1019 resets) in 661 ms. (604 steps per ms) remains 41/41 properties
BEST_FIRST walk for 400004 steps (1006 resets) in 641 ms. (623 steps per ms) remains 41/41 properties
Interrupted probabilistic random walk after 1724878 steps, run timeout after 45001 ms. (steps per millisecond=38 ) properties seen :0 out of 41
Probabilistic random walk after 1724878 steps, saw 1077095 distinct states, run finished after 45002 ms. (steps per millisecond=38 ) properties seen :0
[2026-05-25 06:20:52] [INFO ] Invariant cache hit.
Starting Z3 with timeout 180.0 s and query timeout 18000.0 ms
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/41 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/41 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 2 (OVERLAPS) 9/50 variables, 5/6 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/50 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 4 (OVERLAPS) 334/384 variables, 28/34 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/384 variables, 0/34 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 6 (OVERLAPS) 19/403 variables, 7/41 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/403 variables, 0/41 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 8 (OVERLAPS) 269/672 variables, 30/71 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/672 variables, 0/71 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 10 (OVERLAPS) 34/706 variables, 5/76 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/706 variables, 0/76 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 12 (OVERLAPS) 49/755 variables, 9/85 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/755 variables, 0/85 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 14 (OVERLAPS) 1763/2518 variables, 755/840 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/2518 variables, 0/840 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 16 (OVERLAPS) 0/2518 variables, 0/840 constraints. Problems are: Problem set: 0 solved, 41 unsolved
No progress, stopping.
After SMT solving in domain Real declared 2518/2518 variables, and 840 constraints, problems are : Problem set: 0 solved, 41 unsolved in 8287 ms.
Refiners :[Positive P Invariants (semi-flows): 17/17 constraints, Generalized P Invariants (flows): 68/68 constraints, State Equation: 755/755 constraints, PredecessorRefiner: 41/41 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 41 unsolved
Starting Z3 with timeout 180.0 s and query timeout 18000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/41 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/41 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 2 (OVERLAPS) 9/50 variables, 5/6 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/50 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 4 (OVERLAPS) 334/384 variables, 28/34 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/384 variables, 0/34 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 6 (OVERLAPS) 19/403 variables, 7/41 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/403 variables, 0/41 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 8 (OVERLAPS) 269/672 variables, 30/71 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/672 variables, 0/71 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 10 (OVERLAPS) 34/706 variables, 5/76 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/706 variables, 0/76 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 12 (OVERLAPS) 49/755 variables, 9/85 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/755 variables, 0/85 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 14 (OVERLAPS) 1763/2518 variables, 755/840 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/2518 variables, 41/881 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/2518 variables, 0/881 constraints. Problems are: Problem set: 0 solved, 41 unsolved
At refinement iteration 17 (OVERLAPS) 0/2518 variables, 0/881 constraints. Problems are: Problem set: 0 solved, 41 unsolved
No progress, stopping.
After SMT solving in domain Int declared 2518/2518 variables, and 881 constraints, problems are : Problem set: 0 solved, 41 unsolved in 30155 ms.
Refiners :[Positive P Invariants (semi-flows): 17/17 constraints, Generalized P Invariants (flows): 68/68 constraints, State Equation: 755/755 constraints, PredecessorRefiner: 41/41 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 38481ms problems are : Problem set: 0 solved, 41 unsolved
Fused 41 Parikh solutions to 25 different solutions.
Parikh walk visited 0 properties in 17824 ms.
Support contains 41 out of 755 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 755/755 places, 1763/1763 transitions.
Applied a total of 0 rules in 36 ms. Remains 755 /755 variables (removed 0) and now considering 1763/1763 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 36 ms. Remains : 755/755 places, 1763/1763 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 755/755 places, 1763/1763 transitions.
Applied a total of 0 rules in 33 ms. Remains 755 /755 variables (removed 0) and now considering 1763/1763 (removed 0) transitions.
[2026-05-25 06:21:48] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 06:21:49] [INFO ] Implicit Places using invariants in 553 ms returned []
[2026-05-25 06:21:49] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 06:21:50] [INFO ] Implicit Places using invariants and state equation in 1822 ms returned []
Implicit Place search using SMT with State Equation took 2394 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-25 06:21:51] [INFO ] Redundant transitions in 56 ms returned []
Running 1721 sub problems to find dead transitions.
[2026-05-25 06:21:51] [INFO ] Invariant cache hit.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
Error getting values : (error "ParserException while parsing response: (timeout
org.smtlib.IParser$ParserException: Unbalanced parentheses at end of input")
At refinement iteration 0 (INCLUDED_ONLY) 0/754 variables, 14/14 constraints. Problems are: Problem set: 0 solved, 1721 unsolved
SMT process timed out in 30682ms, After SMT, problems are : Problem set: 0 solved, 1721 unsolved
Search for dead transitions found 0 dead transitions in 30687ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 33185 ms. Remains : 755/755 places, 1763/1763 transitions.
RANDOM walk for 400000 steps (6714 resets) in 3166 ms. (126 steps per ms) remains 41/41 properties
Running SMT prover for 41 properties.
[2026-05-25 06:22:22] [INFO ] Invariant cache hit.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-25 06:22:22] [INFO ] [Real]Absence check using 17 positive place invariants in 3 ms returned sat
[2026-05-25 06:22:22] [INFO ] [Real]Absence check using 17 positive and 68 generalized place invariants in 56 ms returned sat
[2026-05-25 06:22:23] [INFO ] After 683ms SMT Verify possible using state equation in real domain returned unsat :0 sat :41
TRAPS : Iteration 0
[2026-05-25 06:22:29] [INFO ] After 7153ms SMT Verify possible using trap constraints in real domain returned unsat :0 sat :0 real:41
[2026-05-25 06:22:29] [INFO ] After 7337ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:41
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-25 06:22:30] [INFO ] [Nat]Absence check using 17 positive place invariants in 5 ms returned sat
[2026-05-25 06:22:30] [INFO ] [Nat]Absence check using 17 positive and 68 generalized place invariants in 44 ms returned sat
[2026-05-25 06:22:30] [INFO ] After 683ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :41
TRAPS : Iteration 0
[2026-05-25 06:22:37] [INFO ] After 6864ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :41
[2026-05-25 06:22:37] [INFO ] After 7220ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :41
RANDOM walk for 40000 steps (653 resets) in 215 ms. (185 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (105 resets) in 65 ms. (606 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 263363 steps, run timeout after 3001 ms. (steps per millisecond=87 ) properties seen :0 out of 1
Probabilistic random walk after 263363 steps, saw 190699 distinct states, run finished after 3001 ms. (steps per millisecond=87 ) properties seen :0
[2026-05-25 06:22:40] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 5/6 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 8/14 variables, 2/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/14 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 5/19 variables, 2/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/19 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 162/181 variables, 10/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/181 variables, 0/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 2/183 variables, 2/17 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/183 variables, 0/17 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 172/355 variables, 21/38 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/355 variables, 0/38 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 2/357 variables, 2/40 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/357 variables, 0/40 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 139/496 variables, 12/52 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/496 variables, 0/52 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 15/511 variables, 3/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/511 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 161/672 variables, 16/71 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/672 variables, 0/71 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 34/706 variables, 5/76 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/706 variables, 0/76 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 49/755 variables, 9/85 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (INCLUDED_ONLY) 0/755 variables, 0/85 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 25 (OVERLAPS) 1763/2518 variables, 755/840 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 26 (INCLUDED_ONLY) 0/2518 variables, 0/840 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 27 (OVERLAPS) 0/2518 variables, 0/840 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 2518/2518 variables, and 840 constraints, problems are : Problem set: 0 solved, 1 unsolved in 1100 ms.
Refiners :[Positive P Invariants (semi-flows): 17/17 constraints, Generalized P Invariants (flows): 68/68 constraints, State Equation: 755/755 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 5/6 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 8/14 variables, 2/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/14 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 5/19 variables, 2/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/19 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 162/181 variables, 10/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/181 variables, 0/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 2/183 variables, 2/17 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/183 variables, 0/17 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 172/355 variables, 21/38 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/355 variables, 0/38 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 2/357 variables, 2/40 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/357 variables, 0/40 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 139/496 variables, 12/52 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/496 variables, 0/52 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 15/511 variables, 3/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/511 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 161/672 variables, 16/71 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/672 variables, 0/71 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 34/706 variables, 5/76 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/706 variables, 0/76 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 49/755 variables, 9/85 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (INCLUDED_ONLY) 0/755 variables, 0/85 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 2518/2518 variables, and 840 constraints, problems are : Problem set: 0 solved, 1 unsolved in 1622 ms.
Refiners :[Positive P Invariants (semi-flows): 17/17 constraints, Generalized P Invariants (flows): 68/68 constraints, State Equation: 755/755 constraints, PredecessorRefiner: 0/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 2733ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 161 ms.
Support contains 1 out of 755 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 755/755 places, 1763/1763 transitions.
Discarding 1 places :
Implicit places reduction removed 1 places
Drop transitions (Trivial Post-Agglo cleanup.) removed 18 transitions
Trivial Post-agglo rules discarded 18 transitions
Performed 18 trivial Post agglomeration. Transition count delta: 18
Iterating post reduction 0 with 19 rules applied. Total rules applied 19 place count 754 transition count 1745
Reduce places removed 19 places and 0 transitions.
Iterating post reduction 1 with 19 rules applied. Total rules applied 38 place count 735 transition count 1745
Performed 18 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 18 Pre rules applied. Total rules applied 38 place count 735 transition count 1727
Deduced a syphon composed of 18 places in 2 ms
Ensure Unique test removed 9 places
Reduce places removed 27 places and 0 transitions.
Iterating global reduction 2 with 45 rules applied. Total rules applied 83 place count 708 transition count 1727
Discarding 2 places :
Symmetric choice reduction at 2 with 2 rule applications. Total rules 85 place count 706 transition count 1725
Iterating global reduction 2 with 2 rules applied. Total rules applied 87 place count 706 transition count 1725
Discarding 2 places :
Symmetric choice reduction at 2 with 2 rule applications. Total rules 89 place count 704 transition count 1723
Iterating global reduction 2 with 2 rules applied. Total rules applied 91 place count 704 transition count 1723
Applied a total of 91 rules in 89 ms. Remains 704 /755 variables (removed 51) and now considering 1723/1763 (removed 40) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 90 ms. Remains : 704/755 places, 1723/1763 transitions.
RANDOM walk for 40000 steps (675 resets) in 218 ms. (182 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (101 resets) in 64 ms. (615 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 270581 steps, run timeout after 3001 ms. (steps per millisecond=90 ) properties seen :0 out of 1
Probabilistic random walk after 270581 steps, saw 195437 distinct states, run finished after 3001 ms. (steps per millisecond=90 ) properties seen :0
// Phase 1: matrix 1723 rows 704 cols
[2026-05-25 06:22:46] [INFO ] Computed 74 invariants in 35 ms
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 4/5 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/5 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 3/8 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/8 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 28/36 variables, 3/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/36 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 1/37 variables, 1/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/37 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 138/175 variables, 9/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/175 variables, 0/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 2/177 variables, 2/17 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/177 variables, 0/17 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 136/313 variables, 12/29 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/313 variables, 0/29 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 2/315 variables, 2/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/315 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 136/451 variables, 12/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/451 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 15/466 variables, 3/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/466 variables, 0/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 155/621 variables, 14/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/621 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 34/655 variables, 5/65 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (INCLUDED_ONLY) 0/655 variables, 0/65 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 25 (OVERLAPS) 49/704 variables, 9/74 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 26 (INCLUDED_ONLY) 0/704 variables, 0/74 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 27 (OVERLAPS) 1723/2427 variables, 704/778 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 28 (INCLUDED_ONLY) 0/2427 variables, 0/778 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 29 (OVERLAPS) 0/2427 variables, 0/778 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 2427/2427 variables, and 778 constraints, problems are : Problem set: 0 solved, 1 unsolved in 1464 ms.
Refiners :[Positive P Invariants (semi-flows): 15/15 constraints, Generalized P Invariants (flows): 59/59 constraints, State Equation: 704/704 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 4/5 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/5 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 3/8 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/8 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 28/36 variables, 3/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/36 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 1/37 variables, 1/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/37 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 138/175 variables, 9/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/175 variables, 0/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 2/177 variables, 2/17 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/177 variables, 0/17 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 136/313 variables, 12/29 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/313 variables, 0/29 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 2/315 variables, 2/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/315 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 136/451 variables, 12/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/451 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 15/466 variables, 3/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/466 variables, 0/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 155/621 variables, 14/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/621 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 34/655 variables, 5/65 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (INCLUDED_ONLY) 0/655 variables, 0/65 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 25 (OVERLAPS) 49/704 variables, 9/74 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 26 (INCLUDED_ONLY) 0/704 variables, 0/74 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 27 (OVERLAPS) 1723/2427 variables, 704/778 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 28 (INCLUDED_ONLY) 0/2427 variables, 1/779 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 29 (INCLUDED_ONLY) 0/2427 variables, 0/779 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 30 (OVERLAPS) 0/2427 variables, 0/779 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 2427/2427 variables, and 779 constraints, problems are : Problem set: 0 solved, 1 unsolved in 1970 ms.
Refiners :[Positive P Invariants (semi-flows): 15/15 constraints, Generalized P Invariants (flows): 59/59 constraints, State Equation: 704/704 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 3479ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 180 ms.
Support contains 1 out of 704 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 704/704 places, 1723/1723 transitions.
Applied a total of 0 rules in 28 ms. Remains 704 /704 variables (removed 0) and now considering 1723/1723 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 28 ms. Remains : 704/704 places, 1723/1723 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 704/704 places, 1723/1723 transitions.
Applied a total of 0 rules in 28 ms. Remains 704 /704 variables (removed 0) and now considering 1723/1723 (removed 0) transitions.
[2026-05-25 06:22:50] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 06:22:50] [INFO ] Implicit Places using invariants in 673 ms returned [89]
Discarding 1 places :
Implicit Place search using SMT only with invariants took 677 ms to find 1 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 1 : 703/704 places, 1723/1723 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 2 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 0 with 2 rules applied. Total rules applied 2 place count 702 transition count 1722
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 0 with 1 rules applied. Total rules applied 3 place count 702 transition count 1721
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 4 place count 701 transition count 1721
Applied a total of 4 rules in 120 ms. Remains 701 /703 variables (removed 2) and now considering 1721/1723 (removed 2) transitions.
// Phase 1: matrix 1721 rows 701 cols
[2026-05-25 06:22:50] [INFO ] Computed 73 invariants in 34 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 06:22:51] [INFO ] Implicit Places using invariants in 714 ms returned []
[2026-05-25 06:22:51] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 06:22:53] [INFO ] Implicit Places using invariants and state equation in 1768 ms returned []
Implicit Place search using SMT with State Equation took 2485 ms to find 0 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 2 : 701/704 places, 1721/1723 transitions.
Finished structural reductions in REACHABILITY mode , in 2 iterations and 3310 ms. Remains : 701/704 places, 1721/1723 transitions.
RANDOM walk for 40000 steps (645 resets) in 252 ms. (158 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (98 resets) in 66 ms. (597 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 274338 steps, run timeout after 3001 ms. (steps per millisecond=91 ) properties seen :0 out of 1
Probabilistic random walk after 274338 steps, saw 197702 distinct states, run finished after 3001 ms. (steps per millisecond=91 ) properties seen :0
[2026-05-25 06:22:56] [INFO ] Invariant cache hit.
Starting Z3 with timeout 75.0 s and query timeout 7500.0 ms
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 4/5 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/5 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 3/8 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/8 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 95/103 variables, 5/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/103 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 2/105 variables, 2/9 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/105 variables, 0/9 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 136/241 variables, 12/21 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/241 variables, 0/21 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 2/243 variables, 2/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/243 variables, 0/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 136/379 variables, 12/35 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/379 variables, 0/35 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 2/381 variables, 2/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/381 variables, 0/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 134/515 variables, 12/49 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/515 variables, 0/49 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 7/522 variables, 3/52 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/522 variables, 0/52 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 13/535 variables, 1/53 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/535 variables, 0/53 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 33/568 variables, 2/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (INCLUDED_ONLY) 0/568 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 25 (OVERLAPS) 99/667 variables, 13/68 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 26 (INCLUDED_ONLY) 0/667 variables, 0/68 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 27 (OVERLAPS) 18/685 variables, 3/71 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 28 (INCLUDED_ONLY) 0/685 variables, 0/71 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 29 (OVERLAPS) 16/701 variables, 2/73 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 30 (INCLUDED_ONLY) 0/701 variables, 0/73 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 31 (OVERLAPS) 1721/2422 variables, 701/774 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 32 (INCLUDED_ONLY) 0/2422 variables, 0/774 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 33 (OVERLAPS) 0/2422 variables, 0/774 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 2422/2422 variables, and 774 constraints, problems are : Problem set: 0 solved, 1 unsolved in 1331 ms.
Refiners :[Positive P Invariants (semi-flows): 17/17 constraints, Generalized P Invariants (flows): 56/56 constraints, State Equation: 701/701 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 75.0 s and query timeout 7500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 4/5 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/5 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 3/8 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/8 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 95/103 variables, 5/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/103 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 2/105 variables, 2/9 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/105 variables, 0/9 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 136/241 variables, 12/21 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/241 variables, 0/21 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 2/243 variables, 2/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/243 variables, 0/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 136/379 variables, 12/35 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/379 variables, 0/35 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 2/381 variables, 2/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/381 variables, 0/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 134/515 variables, 12/49 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/515 variables, 0/49 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 7/522 variables, 3/52 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/522 variables, 0/52 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 13/535 variables, 1/53 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/535 variables, 0/53 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 33/568 variables, 2/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (INCLUDED_ONLY) 0/568 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 25 (OVERLAPS) 99/667 variables, 13/68 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 26 (INCLUDED_ONLY) 0/667 variables, 0/68 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 27 (OVERLAPS) 18/685 variables, 3/71 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 28 (INCLUDED_ONLY) 0/685 variables, 0/71 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 29 (OVERLAPS) 16/701 variables, 2/73 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 30 (INCLUDED_ONLY) 0/701 variables, 0/73 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 31 (OVERLAPS) 1721/2422 variables, 701/774 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 32 (INCLUDED_ONLY) 0/2422 variables, 1/775 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 06:22:59] [INFO ] Deduced a trap composed of 53 places in 191 ms of which 17 ms to minimize.
At refinement iteration 33 (INCLUDED_ONLY) 0/2422 variables, 1/776 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 34 (INCLUDED_ONLY) 0/2422 variables, 0/776 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 35 (OVERLAPS) 0/2422 variables, 0/776 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 2422/2422 variables, and 776 constraints, problems are : Problem set: 0 solved, 1 unsolved in 2306 ms.
Refiners :[Positive P Invariants (semi-flows): 17/17 constraints, Generalized P Invariants (flows): 56/56 constraints, State Equation: 701/701 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 3647ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 137 ms.
Support contains 1 out of 701 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 701/701 places, 1721/1721 transitions.
Applied a total of 0 rules in 31 ms. Remains 701 /701 variables (removed 0) and now considering 1721/1721 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 31 ms. Remains : 701/701 places, 1721/1721 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 701/701 places, 1721/1721 transitions.
Applied a total of 0 rules in 29 ms. Remains 701 /701 variables (removed 0) and now considering 1721/1721 (removed 0) transitions.
[2026-05-25 06:23:00] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 06:23:01] [INFO ] Implicit Places using invariants in 767 ms returned []
[2026-05-25 06:23:01] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 06:23:02] [INFO ] Implicit Places using invariants and state equation in 1778 ms returned []
Implicit Place search using SMT with State Equation took 2561 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-25 06:23:02] [INFO ] Redundant transitions in 51 ms returned []
Running 1679 sub problems to find dead transitions.
[2026-05-25 06:23:02] [INFO ] Invariant cache hit.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/700 variables, 14/14 constraints. Problems are: Problem set: 0 solved, 1679 unsolved
SMT process timed out in 30677ms, After SMT, problems are : Problem set: 0 solved, 1679 unsolved
Search for dead transitions found 0 dead transitions in 30682ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 33335 ms. Remains : 701/701 places, 1721/1721 transitions.
Attempting over-approximation, by ignoring read arcs.
Applied a total of 0 rules in 47 ms. Remains 701 /701 variables (removed 0) and now considering 1721/1721 (removed 0) transitions.
Running SMT prover for 1 properties.
[2026-05-25 06:23:33] [INFO ] Invariant cache hit.
Starting Z3 with timeout 450.0 s and query timeout 45000.0 ms
[2026-05-25 06:23:33] [INFO ] After 195ms 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 06:23:33] [INFO ] [Nat]Absence check using 17 positive place invariants in 7 ms returned sat
[2026-05-25 06:23:34] [INFO ] [Nat]Absence check using 17 positive and 56 generalized place invariants in 34 ms returned sat
[2026-05-25 06:23:34] [INFO ] After 590ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
TRAPS : Iteration 0
[2026-05-25 06:23:34] [INFO ] After 680ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
[2026-05-25 06:23:34] [INFO ] After 965ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
Over-approximation ignoring read arcs solved 0 properties in 1227 ms.
RANDOM walk for 40000 steps (661 resets) in 202 ms. (197 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (101 resets) in 69 ms. (571 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 268515 steps, run timeout after 3001 ms. (steps per millisecond=89 ) properties seen :0 out of 1
Probabilistic random walk after 268515 steps, saw 194103 distinct states, run finished after 3002 ms. (steps per millisecond=89 ) properties seen :0
// Phase 1: matrix 1763 rows 755 cols
[2026-05-25 06:23:37] [INFO ] Computed 85 invariants in 13 ms
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
All remaining problems are real, not stopping.
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) 13/14 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/14 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 5/19 variables, 2/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/19 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 162/181 variables, 10/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/181 variables, 0/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 2/183 variables, 2/17 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/183 variables, 0/17 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 172/355 variables, 21/38 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/355 variables, 0/38 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 2/357 variables, 2/40 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/357 variables, 0/40 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 139/496 variables, 12/52 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/496 variables, 0/52 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 15/511 variables, 3/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/511 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 161/672 variables, 16/71 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/672 variables, 0/71 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 34/706 variables, 5/76 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/706 variables, 0/76 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 49/755 variables, 9/85 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/755 variables, 0/85 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 2518/2518 variables, and 840 constraints, problems are : Problem set: 0 solved, 1 unsolved in 994 ms.
Refiners :[Positive P Invariants (semi-flows): 17/17 constraints, Generalized P Invariants (flows): 68/68 constraints, State Equation: 755/755 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) 13/14 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/14 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 5/19 variables, 2/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/19 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 162/181 variables, 10/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/181 variables, 0/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 2/183 variables, 2/17 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/183 variables, 0/17 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 172/355 variables, 21/38 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/355 variables, 0/38 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 2/357 variables, 2/40 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/357 variables, 0/40 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 139/496 variables, 12/52 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/496 variables, 0/52 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 15/511 variables, 3/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/511 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 161/672 variables, 16/71 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/672 variables, 0/71 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 34/706 variables, 5/76 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 06:23:39] [INFO ] Deduced a trap composed of 13 places in 79 ms of which 4 ms to minimize.
At refinement iteration 20 (INCLUDED_ONLY) 0/706 variables, 1/77 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/706 variables, 0/77 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (OVERLAPS) 49/755 variables, 9/86 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (INCLUDED_ONLY) 0/755 variables, 0/86 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 2518/2518 variables, and 841 constraints, problems are : Problem set: 0 solved, 1 unsolved in 1810 ms.
Refiners :[Positive P Invariants (semi-flows): 17/17 constraints, Generalized P Invariants (flows): 68/68 constraints, State Equation: 755/755 constraints, PredecessorRefiner: 0/1 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 2836ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 160 ms.
Support contains 1 out of 755 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 755/755 places, 1763/1763 transitions.
Discarding 1 places :
Implicit places reduction removed 1 places
Drop transitions (Trivial Post-Agglo cleanup.) removed 17 transitions
Trivial Post-agglo rules discarded 17 transitions
Performed 17 trivial Post agglomeration. Transition count delta: 17
Iterating post reduction 0 with 18 rules applied. Total rules applied 18 place count 754 transition count 1746
Reduce places removed 18 places and 0 transitions.
Iterating post reduction 1 with 18 rules applied. Total rules applied 36 place count 736 transition count 1746
Performed 18 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 18 Pre rules applied. Total rules applied 36 place count 736 transition count 1728
Deduced a syphon composed of 18 places in 2 ms
Ensure Unique test removed 9 places
Reduce places removed 27 places and 0 transitions.
Iterating global reduction 2 with 45 rules applied. Total rules applied 81 place count 709 transition count 1728
Discarding 2 places :
Symmetric choice reduction at 2 with 2 rule applications. Total rules 83 place count 707 transition count 1726
Iterating global reduction 2 with 2 rules applied. Total rules applied 85 place count 707 transition count 1726
Discarding 2 places :
Symmetric choice reduction at 2 with 2 rule applications. Total rules 87 place count 705 transition count 1724
Iterating global reduction 2 with 2 rules applied. Total rules applied 89 place count 705 transition count 1724
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 2 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 2 with 2 rules applied. Total rules applied 91 place count 704 transition count 1723
Applied a total of 91 rules in 104 ms. Remains 704 /755 variables (removed 51) and now considering 1723/1763 (removed 40) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 104 ms. Remains : 704/755 places, 1723/1763 transitions.
RANDOM walk for 40000 steps (641 resets) in 225 ms. (176 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (104 resets) in 137 ms. (289 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 277123 steps, run timeout after 3001 ms. (steps per millisecond=92 ) properties seen :0 out of 1
Probabilistic random walk after 277123 steps, saw 199713 distinct states, run finished after 3001 ms. (steps per millisecond=92 ) properties seen :0
// Phase 1: matrix 1723 rows 704 cols
[2026-05-25 06:23:44] [INFO ] Computed 74 invariants in 34 ms
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
All remaining problems are real, not stopping.
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) 7/8 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/8 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 53/61 variables, 4/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/61 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 1/62 variables, 1/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/62 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 113/175 variables, 8/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/175 variables, 0/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 2/177 variables, 2/17 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/177 variables, 0/17 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 136/313 variables, 12/29 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/313 variables, 0/29 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 2/315 variables, 2/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/315 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 136/451 variables, 12/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/451 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 15/466 variables, 3/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/466 variables, 0/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 155/621 variables, 14/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/621 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 34/655 variables, 5/65 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/655 variables, 0/65 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 49/704 variables, 9/74 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (INCLUDED_ONLY) 0/704 variables, 0/74 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 25 (OVERLAPS) 1723/2427 variables, 704/778 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 26 (INCLUDED_ONLY) 0/2427 variables, 0/778 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 27 (OVERLAPS) 0/2427 variables, 0/778 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 2427/2427 variables, and 778 constraints, problems are : Problem set: 0 solved, 1 unsolved in 1413 ms.
Refiners :[Positive P Invariants (semi-flows): 15/15 constraints, Generalized P Invariants (flows): 59/59 constraints, State Equation: 704/704 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) 7/8 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/8 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 53/61 variables, 4/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/61 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 1/62 variables, 1/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/62 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 113/175 variables, 8/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/175 variables, 0/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 2/177 variables, 2/17 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/177 variables, 0/17 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 136/313 variables, 12/29 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/313 variables, 0/29 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 2/315 variables, 2/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/315 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 136/451 variables, 12/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/451 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 15/466 variables, 3/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/466 variables, 0/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 155/621 variables, 14/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/621 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 34/655 variables, 5/65 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/655 variables, 0/65 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 49/704 variables, 9/74 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (INCLUDED_ONLY) 0/704 variables, 0/74 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 25 (OVERLAPS) 1723/2427 variables, 704/778 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 26 (INCLUDED_ONLY) 0/2427 variables, 1/779 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 27 (INCLUDED_ONLY) 0/2427 variables, 0/779 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 28 (OVERLAPS) 0/2427 variables, 0/779 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 2427/2427 variables, and 779 constraints, problems are : Problem set: 0 solved, 1 unsolved in 1389 ms.
Refiners :[Positive P Invariants (semi-flows): 15/15 constraints, Generalized P Invariants (flows): 59/59 constraints, State Equation: 704/704 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 2843ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 167 ms.
Support contains 1 out of 704 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 704/704 places, 1723/1723 transitions.
Applied a total of 0 rules in 29 ms. Remains 704 /704 variables (removed 0) and now considering 1723/1723 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 29 ms. Remains : 704/704 places, 1723/1723 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 704/704 places, 1723/1723 transitions.
Applied a total of 0 rules in 28 ms. Remains 704 /704 variables (removed 0) and now considering 1723/1723 (removed 0) transitions.
[2026-05-25 06:23:47] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 06:23:47] [INFO ] Implicit Places using invariants in 683 ms returned [88, 89]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 686 ms to find 2 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 1 : 702/704 places, 1723/1723 transitions.
Performed 2 Post agglomeration using F-continuation condition.Transition count delta: 2
Deduced a syphon composed of 2 places in 2 ms
Reduce places removed 2 places and 0 transitions.
Iterating global reduction 0 with 4 rules applied. Total rules applied 4 place count 700 transition count 1721
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 0 with 1 rules applied. Total rules applied 5 place count 700 transition count 1720
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 6 place count 699 transition count 1720
Partial Free-agglomeration rule applied 1 times.
Drop transitions (Partial Free agglomeration) removed 1 transitions
Iterating global reduction 1 with 1 rules applied. Total rules applied 7 place count 699 transition count 1720
Applied a total of 7 rules in 144 ms. Remains 699 /702 variables (removed 3) and now considering 1720/1723 (removed 3) transitions.
// Phase 1: matrix 1720 rows 699 cols
[2026-05-25 06:23:48] [INFO ] Computed 72 invariants in 33 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 06:23:48] [INFO ] Implicit Places using invariants in 756 ms returned []
[2026-05-25 06:23:48] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 06:23:50] [INFO ] Implicit Places using invariants and state equation in 1763 ms returned []
Implicit Place search using SMT with State Equation took 2524 ms to find 0 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 2 : 699/704 places, 1720/1723 transitions.
Finished structural reductions in REACHABILITY mode , in 2 iterations and 3383 ms. Remains : 699/704 places, 1720/1723 transitions.
RANDOM walk for 40000 steps (655 resets) in 202 ms. (197 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (101 resets) in 57 ms. (689 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 270218 steps, run timeout after 3001 ms. (steps per millisecond=90 ) properties seen :0 out of 1
Probabilistic random walk after 270218 steps, saw 195205 distinct states, run finished after 3001 ms. (steps per millisecond=90 ) properties seen :0
[2026-05-25 06:23:53] [INFO ] Invariant cache hit.
Starting Z3 with timeout 75.0 s and query timeout 7500.0 ms
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 5/6 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 95/101 variables, 5/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/101 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 2/103 variables, 2/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/103 variables, 0/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 136/239 variables, 12/20 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/239 variables, 0/20 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 2/241 variables, 2/22 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/241 variables, 0/22 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 136/377 variables, 12/34 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/377 variables, 0/34 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 2/379 variables, 2/36 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/379 variables, 0/36 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 134/513 variables, 12/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/513 variables, 0/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 7/520 variables, 3/51 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/520 variables, 0/51 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 13/533 variables, 1/52 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/533 variables, 0/52 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 33/566 variables, 2/54 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/566 variables, 0/54 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 100/666 variables, 13/67 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (INCLUDED_ONLY) 0/666 variables, 0/67 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 25 (OVERLAPS) 22/688 variables, 3/70 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 26 (INCLUDED_ONLY) 0/688 variables, 0/70 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 27 (OVERLAPS) 11/699 variables, 2/72 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 28 (INCLUDED_ONLY) 0/699 variables, 0/72 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 29 (OVERLAPS) 1720/2419 variables, 699/771 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 30 (INCLUDED_ONLY) 0/2419 variables, 0/771 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 31 (OVERLAPS) 0/2419 variables, 0/771 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 2419/2419 variables, and 771 constraints, problems are : Problem set: 0 solved, 1 unsolved in 1268 ms.
Refiners :[Positive P Invariants (semi-flows): 16/16 constraints, Generalized P Invariants (flows): 56/56 constraints, State Equation: 699/699 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 75.0 s and query timeout 7500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 5/6 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 95/101 variables, 5/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/101 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 2/103 variables, 2/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/103 variables, 0/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 136/239 variables, 12/20 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/239 variables, 0/20 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 2/241 variables, 2/22 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/241 variables, 0/22 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 136/377 variables, 12/34 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/377 variables, 0/34 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 2/379 variables, 2/36 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/379 variables, 0/36 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 134/513 variables, 12/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/513 variables, 0/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 7/520 variables, 3/51 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/520 variables, 0/51 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 13/533 variables, 1/52 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/533 variables, 0/52 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 33/566 variables, 2/54 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/566 variables, 0/54 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 100/666 variables, 13/67 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (INCLUDED_ONLY) 0/666 variables, 0/67 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 25 (OVERLAPS) 22/688 variables, 3/70 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 26 (INCLUDED_ONLY) 0/688 variables, 0/70 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 27 (OVERLAPS) 11/699 variables, 2/72 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 06:23:55] [INFO ] Deduced a trap composed of 13 places in 138 ms of which 12 ms to minimize.
At refinement iteration 28 (INCLUDED_ONLY) 0/699 variables, 1/73 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 29 (INCLUDED_ONLY) 0/699 variables, 0/73 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 30 (OVERLAPS) 1720/2419 variables, 699/772 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 31 (INCLUDED_ONLY) 0/2419 variables, 1/773 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 32 (INCLUDED_ONLY) 0/2419 variables, 0/773 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 33 (OVERLAPS) 0/2419 variables, 0/773 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 2419/2419 variables, and 773 constraints, problems are : Problem set: 0 solved, 1 unsolved in 1594 ms.
Refiners :[Positive P Invariants (semi-flows): 16/16 constraints, Generalized P Invariants (flows): 56/56 constraints, State Equation: 699/699 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 2890ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 161 ms.
Support contains 1 out of 699 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 699/699 places, 1720/1720 transitions.
Applied a total of 0 rules in 29 ms. Remains 699 /699 variables (removed 0) and now considering 1720/1720 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 29 ms. Remains : 699/699 places, 1720/1720 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 699/699 places, 1720/1720 transitions.
Applied a total of 0 rules in 29 ms. Remains 699 /699 variables (removed 0) and now considering 1720/1720 (removed 0) transitions.
[2026-05-25 06:23:56] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 06:23:57] [INFO ] Implicit Places using invariants in 536 ms returned []
[2026-05-25 06:23:57] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 06:23:59] [INFO ] Implicit Places using invariants and state equation in 1781 ms returned []
Implicit Place search using SMT with State Equation took 2323 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-25 06:23:59] [INFO ] Redundant transitions in 24 ms returned []
Running 1678 sub problems to find dead transitions.
[2026-05-25 06:23:59] [INFO ] Invariant cache hit.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
Error getting values : (error "ParserException while parsing response: (timeout
org.smtlib.IParser$ParserException: Unbalanced parentheses at end of input")
At refinement iteration 0 (INCLUDED_ONLY) 0/698 variables, 13/13 constraints. Problems are: Problem set: 0 solved, 1678 unsolved
SMT process timed out in 30544ms, After SMT, problems are : Problem set: 0 solved, 1678 unsolved
Search for dead transitions found 0 dead transitions in 30548ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 32934 ms. Remains : 699/699 places, 1720/1720 transitions.
Attempting over-approximation, by ignoring read arcs.
Applied a total of 0 rules in 50 ms. Remains 699 /699 variables (removed 0) and now considering 1720/1720 (removed 0) transitions.
Running SMT prover for 1 properties.
[2026-05-25 06:24:29] [INFO ] Invariant cache hit.
Starting Z3 with timeout 450.0 s and query timeout 45000.0 ms
[2026-05-25 06:24:29] [INFO ] After 158ms 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 06:24:29] [INFO ] [Nat]Absence check using 16 positive place invariants in 6 ms returned sat
[2026-05-25 06:24:30] [INFO ] [Nat]Absence check using 16 positive and 56 generalized place invariants in 53 ms returned sat
[2026-05-25 06:24:30] [INFO ] After 594ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
TRAPS : Iteration 0
[2026-05-25 06:24:30] [INFO ] After 699ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
[2026-05-25 06:24:30] [INFO ] After 983ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
Over-approximation ignoring read arcs solved 0 properties in 1211 ms.
RANDOM walk for 40000 steps (653 resets) in 244 ms. (163 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (97 resets) in 85 ms. (465 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 269675 steps, run timeout after 3001 ms. (steps per millisecond=89 ) properties seen :0 out of 1
Probabilistic random walk after 269675 steps, saw 194787 distinct states, run finished after 3001 ms. (steps per millisecond=89 ) properties seen :0
// Phase 1: matrix 1763 rows 755 cols
[2026-05-25 06:24:33] [INFO ] Computed 85 invariants in 34 ms
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
All remaining problems are real, not stopping.
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) 38/39 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/39 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 10/49 variables, 2/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/49 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 4/53 variables, 2/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/53 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 1/54 variables, 1/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/54 variables, 0/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 151/205 variables, 12/20 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/205 variables, 0/20 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 2/207 variables, 2/22 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/207 variables, 0/22 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 148/355 variables, 16/38 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/355 variables, 0/38 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 2/357 variables, 2/40 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/357 variables, 0/40 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 139/496 variables, 12/52 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/496 variables, 0/52 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 15/511 variables, 3/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/511 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 161/672 variables, 16/71 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/672 variables, 0/71 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 34/706 variables, 5/76 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (INCLUDED_ONLY) 0/706 variables, 0/76 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 25 (OVERLAPS) 49/755 variables, 9/85 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 26 (INCLUDED_ONLY) 0/755 variables, 0/85 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 27 (OVERLAPS) 1763/2518 variables, 755/840 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 28 (INCLUDED_ONLY) 0/2518 variables, 0/840 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 29 (OVERLAPS) 0/2518 variables, 0/840 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 2518/2518 variables, and 840 constraints, problems are : Problem set: 0 solved, 1 unsolved in 855 ms.
Refiners :[Positive P Invariants (semi-flows): 17/17 constraints, Generalized P Invariants (flows): 68/68 constraints, State Equation: 755/755 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) 38/39 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/39 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 10/49 variables, 2/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/49 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 4/53 variables, 2/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/53 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 1/54 variables, 1/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/54 variables, 0/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 151/205 variables, 12/20 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/205 variables, 0/20 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 2/207 variables, 2/22 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/207 variables, 0/22 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 148/355 variables, 16/38 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/355 variables, 0/38 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 2/357 variables, 2/40 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/357 variables, 0/40 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 139/496 variables, 12/52 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/496 variables, 0/52 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 15/511 variables, 3/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/511 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 161/672 variables, 16/71 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/672 variables, 0/71 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 34/706 variables, 5/76 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 06:24:35] [INFO ] Deduced a trap composed of 13 places in 76 ms of which 5 ms to minimize.
At refinement iteration 24 (INCLUDED_ONLY) 0/706 variables, 1/77 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 25 (INCLUDED_ONLY) 0/706 variables, 0/77 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 26 (OVERLAPS) 49/755 variables, 9/86 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 27 (INCLUDED_ONLY) 0/755 variables, 0/86 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 2518/2518 variables, and 841 constraints, problems are : Problem set: 0 solved, 1 unsolved in 1809 ms.
Refiners :[Positive P Invariants (semi-flows): 17/17 constraints, Generalized P Invariants (flows): 68/68 constraints, State Equation: 755/755 constraints, PredecessorRefiner: 0/1 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 2706ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 199 ms.
Support contains 1 out of 755 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 755/755 places, 1763/1763 transitions.
Discarding 1 places :
Implicit places reduction removed 1 places
Drop transitions (Trivial Post-Agglo cleanup.) removed 18 transitions
Trivial Post-agglo rules discarded 18 transitions
Performed 18 trivial Post agglomeration. Transition count delta: 18
Iterating post reduction 0 with 19 rules applied. Total rules applied 19 place count 754 transition count 1745
Reduce places removed 19 places and 0 transitions.
Iterating post reduction 1 with 19 rules applied. Total rules applied 38 place count 735 transition count 1745
Performed 17 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 17 Pre rules applied. Total rules applied 38 place count 735 transition count 1728
Deduced a syphon composed of 17 places in 2 ms
Ensure Unique test removed 9 places
Reduce places removed 26 places and 0 transitions.
Iterating global reduction 2 with 43 rules applied. Total rules applied 81 place count 709 transition count 1728
Discarding 2 places :
Symmetric choice reduction at 2 with 2 rule applications. Total rules 83 place count 707 transition count 1726
Iterating global reduction 2 with 2 rules applied. Total rules applied 85 place count 707 transition count 1726
Discarding 2 places :
Symmetric choice reduction at 2 with 2 rule applications. Total rules 87 place count 705 transition count 1724
Iterating global reduction 2 with 2 rules applied. Total rules applied 89 place count 705 transition count 1724
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 1 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 2 with 2 rules applied. Total rules applied 91 place count 704 transition count 1723
Applied a total of 91 rules in 106 ms. Remains 704 /755 variables (removed 51) and now considering 1723/1763 (removed 40) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 106 ms. Remains : 704/755 places, 1723/1763 transitions.
RANDOM walk for 40000 steps (707 resets) in 235 ms. (169 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (99 resets) in 69 ms. (571 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 277690 steps, run timeout after 3001 ms. (steps per millisecond=92 ) properties seen :0 out of 1
Probabilistic random walk after 277690 steps, saw 200133 distinct states, run finished after 3001 ms. (steps per millisecond=92 ) properties seen :0
// Phase 1: matrix 1723 rows 704 cols
[2026-05-25 06:24:40] [INFO ] Computed 74 invariants in 34 ms
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
All remaining problems are real, not stopping.
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) 24/25 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/25 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 6/31 variables, 2/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/31 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 1/32 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/32 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 143/175 variables, 11/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/175 variables, 0/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 2/177 variables, 2/17 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/177 variables, 0/17 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 136/313 variables, 12/29 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/313 variables, 0/29 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 2/315 variables, 2/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/315 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 136/451 variables, 12/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/451 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 15/466 variables, 3/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/466 variables, 0/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 155/621 variables, 14/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/621 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 34/655 variables, 5/65 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 06:24:40] [INFO ] Deduced a trap composed of 13 places in 63 ms of which 5 ms to minimize.
At refinement iteration 22 (INCLUDED_ONLY) 0/655 variables, 1/66 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (INCLUDED_ONLY) 0/655 variables, 0/66 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (OVERLAPS) 49/704 variables, 9/75 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 25 (INCLUDED_ONLY) 0/704 variables, 0/75 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 26 (OVERLAPS) 1723/2427 variables, 704/779 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 27 (INCLUDED_ONLY) 0/2427 variables, 0/779 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 28 (OVERLAPS) 0/2427 variables, 0/779 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 2427/2427 variables, and 779 constraints, problems are : Problem set: 0 solved, 1 unsolved in 1226 ms.
Refiners :[Positive P Invariants (semi-flows): 15/15 constraints, Generalized P Invariants (flows): 59/59 constraints, State Equation: 704/704 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 1/1 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) 24/25 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/25 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 6/31 variables, 2/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/31 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 1/32 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/32 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 143/175 variables, 11/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/175 variables, 0/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 2/177 variables, 2/17 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/177 variables, 0/17 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 136/313 variables, 12/29 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/313 variables, 0/29 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 2/315 variables, 2/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/315 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 136/451 variables, 12/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/451 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 15/466 variables, 3/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/466 variables, 0/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 155/621 variables, 14/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/621 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 34/655 variables, 5/65 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/655 variables, 1/66 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (INCLUDED_ONLY) 0/655 variables, 0/66 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (OVERLAPS) 49/704 variables, 9/75 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 25 (INCLUDED_ONLY) 0/704 variables, 0/75 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 26 (OVERLAPS) 1723/2427 variables, 704/779 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 27 (INCLUDED_ONLY) 0/2427 variables, 1/780 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 28 (INCLUDED_ONLY) 0/2427 variables, 0/780 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 29 (OVERLAPS) 0/2427 variables, 0/780 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 2427/2427 variables, and 780 constraints, problems are : Problem set: 0 solved, 1 unsolved in 1433 ms.
Refiners :[Positive P Invariants (semi-flows): 15/15 constraints, Generalized P Invariants (flows): 59/59 constraints, State Equation: 704/704 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 2703ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 202 ms.
Support contains 1 out of 704 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 704/704 places, 1723/1723 transitions.
Applied a total of 0 rules in 33 ms. Remains 704 /704 variables (removed 0) and now considering 1723/1723 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 33 ms. Remains : 704/704 places, 1723/1723 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 704/704 places, 1723/1723 transitions.
Applied a total of 0 rules in 31 ms. Remains 704 /704 variables (removed 0) and now considering 1723/1723 (removed 0) transitions.
[2026-05-25 06:24:43] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 06:24:43] [INFO ] Implicit Places using invariants in 683 ms returned [88, 89]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 686 ms to find 2 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 1 : 702/704 places, 1723/1723 transitions.
Performed 2 Post agglomeration using F-continuation condition.Transition count delta: 2
Deduced a syphon composed of 2 places in 2 ms
Reduce places removed 2 places and 0 transitions.
Iterating global reduction 0 with 4 rules applied. Total rules applied 4 place count 700 transition count 1721
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 0 with 1 rules applied. Total rules applied 5 place count 700 transition count 1720
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 6 place count 699 transition count 1720
Partial Free-agglomeration rule applied 1 times.
Drop transitions (Partial Free agglomeration) removed 1 transitions
Iterating global reduction 1 with 1 rules applied. Total rules applied 7 place count 699 transition count 1720
Applied a total of 7 rules in 122 ms. Remains 699 /702 variables (removed 3) and now considering 1720/1723 (removed 3) transitions.
// Phase 1: matrix 1720 rows 699 cols
[2026-05-25 06:24:43] [INFO ] Computed 72 invariants in 33 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 06:24:44] [INFO ] Implicit Places using invariants in 742 ms returned []
[2026-05-25 06:24:44] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 06:24:46] [INFO ] Implicit Places using invariants and state equation in 1667 ms returned []
Implicit Place search using SMT with State Equation took 2411 ms to find 0 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 2 : 699/704 places, 1720/1723 transitions.
Finished structural reductions in REACHABILITY mode , in 2 iterations and 3250 ms. Remains : 699/704 places, 1720/1723 transitions.
RANDOM walk for 40000 steps (643 resets) in 243 ms. (163 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (99 resets) in 65 ms. (606 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 274213 steps, run timeout after 3001 ms. (steps per millisecond=91 ) properties seen :0 out of 1
Probabilistic random walk after 274213 steps, saw 197630 distinct states, run finished after 3001 ms. (steps per millisecond=91 ) properties seen :0
[2026-05-25 06:24:49] [INFO ] Invariant cache hit.
Starting Z3 with timeout 75.0 s and query timeout 7500.0 ms
All remaining problems are real, not stopping.
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) 95/96 variables, 5/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/96 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 6/102 variables, 3/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/102 variables, 0/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 137/239 variables, 12/20 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/239 variables, 0/20 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 2/241 variables, 2/22 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/241 variables, 0/22 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 136/377 variables, 12/34 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/377 variables, 0/34 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 2/379 variables, 2/36 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/379 variables, 0/36 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 134/513 variables, 12/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/513 variables, 0/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 7/520 variables, 3/51 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/520 variables, 0/51 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 13/533 variables, 1/52 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/533 variables, 0/52 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 33/566 variables, 2/54 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/566 variables, 0/54 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 100/666 variables, 13/67 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/666 variables, 0/67 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 22/688 variables, 3/70 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (INCLUDED_ONLY) 0/688 variables, 0/70 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 25 (OVERLAPS) 11/699 variables, 2/72 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 26 (INCLUDED_ONLY) 0/699 variables, 0/72 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 27 (OVERLAPS) 1720/2419 variables, 699/771 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 28 (INCLUDED_ONLY) 0/2419 variables, 0/771 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 29 (OVERLAPS) 0/2419 variables, 0/771 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 2419/2419 variables, and 771 constraints, problems are : Problem set: 0 solved, 1 unsolved in 1149 ms.
Refiners :[Positive P Invariants (semi-flows): 16/16 constraints, Generalized P Invariants (flows): 56/56 constraints, State Equation: 699/699 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 75.0 s and query timeout 7500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 95/96 variables, 5/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/96 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 6/102 variables, 3/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/102 variables, 0/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 137/239 variables, 12/20 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/239 variables, 0/20 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 2/241 variables, 2/22 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/241 variables, 0/22 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 136/377 variables, 12/34 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/377 variables, 0/34 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 2/379 variables, 2/36 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/379 variables, 0/36 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 134/513 variables, 12/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/513 variables, 0/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 7/520 variables, 3/51 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/520 variables, 0/51 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 13/533 variables, 1/52 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/533 variables, 0/52 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 33/566 variables, 2/54 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/566 variables, 0/54 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 100/666 variables, 13/67 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/666 variables, 0/67 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 22/688 variables, 3/70 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (INCLUDED_ONLY) 0/688 variables, 0/70 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 25 (OVERLAPS) 11/699 variables, 2/72 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 26 (INCLUDED_ONLY) 0/699 variables, 0/72 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 27 (OVERLAPS) 1720/2419 variables, 699/771 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 28 (INCLUDED_ONLY) 0/2419 variables, 1/772 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 29 (INCLUDED_ONLY) 0/2419 variables, 0/772 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 30 (OVERLAPS) 0/2419 variables, 0/772 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 2419/2419 variables, and 772 constraints, problems are : Problem set: 0 solved, 1 unsolved in 1522 ms.
Refiners :[Positive P Invariants (semi-flows): 16/16 constraints, Generalized P Invariants (flows): 56/56 constraints, State Equation: 699/699 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 2690ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 223 ms.
Support contains 1 out of 699 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 699/699 places, 1720/1720 transitions.
Applied a total of 0 rules in 30 ms. Remains 699 /699 variables (removed 0) and now considering 1720/1720 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 30 ms. Remains : 699/699 places, 1720/1720 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 699/699 places, 1720/1720 transitions.
Applied a total of 0 rules in 30 ms. Remains 699 /699 variables (removed 0) and now considering 1720/1720 (removed 0) transitions.
[2026-05-25 06:24:52] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 06:24:52] [INFO ] Implicit Places using invariants in 650 ms returned []
[2026-05-25 06:24:53] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 06:24:54] [INFO ] Implicit Places using invariants and state equation in 1697 ms returned []
Implicit Place search using SMT with State Equation took 2350 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-25 06:24:54] [INFO ] Redundant transitions in 58 ms returned []
Running 1678 sub problems to find dead transitions.
[2026-05-25 06:24:54] [INFO ] Invariant cache hit.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms

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
+ [[ StableMarking = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution StableMarking -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 1800
+ 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 StableMarking -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 1800

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="ASLink-PT-09a"
export BK_EXAMINATION="StableMarking"
export BK_TOOL="gold2025"
export BK_RESULT_DIR="/tmp/BK_RESULTS/OUTPUTS"
export BK_TIME_CONFINEMENT="1800"
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 ASLink-PT-09a, examination is StableMarking"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r016-oct2-177944372800258"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/ASLink-PT-09a.tgz
mv ASLink-PT-09a execution
cd execution
if [ "StableMarking" = "ReachabilityDeadlock" ] || [ "StableMarking" = "UpperBounds" ] || [ "StableMarking" = "QuasiLiveness" ] || [ "StableMarking" = "StableMarking" ] || [ "StableMarking" = "Liveness" ] || [ "StableMarking" = "OneSafe" ] || [ "StableMarking" = "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 [ "StableMarking" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "StableMarking" != "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 "StableMarking.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 '' StableMarking.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "StableMarking" = "ReachabilityDeadlock" ] || [ "StableMarking" = "QuasiLiveness" ] || [ "StableMarking" = "StableMarking" ] || [ "StableMarking" = "Liveness" ] || [ "StableMarking" = "OneSafe" ] ; then
echo "FORMULA_NAME StableMarking"
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 ;