Execution Chart

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

Trace from the execution

Formatting '/data/fkordon/mcc2026-input.r159-tall-177961079800017.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2026-input.qcow2 backing_fmt=qcow2 cluster_size=65536 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
.................
=====================================================================
Generated by BenchKit 2-5973
Executing tool gold2025
Input is FunctionPointer-PT-c008, examination is UpperBounds
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r159-tall-177961079800017
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 4.6M
-rw-r--r-- 1 mcc users 7.7K Mar 7 07:32 CTLCardinality.txt
-rw-r--r-- 1 mcc users 83K Mar 7 07:32 CTLCardinality.xml
-rw-r--r-- 1 mcc users 7.6K Mar 7 07:31 CTLFireability.txt
-rw-r--r-- 1 mcc users 73K Mar 7 07:31 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.0K Mar 15 10:25 LTLCardinality.txt
-rw-r--r-- 1 mcc users 29K Mar 15 10:25 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.4K Mar 15 10:25 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K Mar 15 10:25 LTLFireability.xml
-rw-r--r-- 1 mcc users 8.0K Mar 7 07:32 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 76K Mar 7 07:32 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 8.8K Mar 7 07:32 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 73K Mar 7 07:32 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K Mar 15 10:25 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.8K Mar 15 10:25 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 equiv_col
-rw-r--r-- 1 mcc users 5 Mar 3 18:30 instance
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 iscolored
-rw-r--r-- 1 mcc users 4.2M Mar 3 18:30 model.pnml

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

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

The expected result is a vector of positive values
NUM_VECTOR

echo here is the order used to build the result vector(from xml file)
FORMULA_NAME FunctionPointer-PT-c008-UpperBounds-00
FORMULA_NAME FunctionPointer-PT-c008-UpperBounds-01
FORMULA_NAME FunctionPointer-PT-c008-UpperBounds-02
FORMULA_NAME FunctionPointer-PT-c008-UpperBounds-03
FORMULA_NAME FunctionPointer-PT-c008-UpperBounds-04
FORMULA_NAME FunctionPointer-PT-c008-UpperBounds-05
FORMULA_NAME FunctionPointer-PT-c008-UpperBounds-06
FORMULA_NAME FunctionPointer-PT-c008-UpperBounds-07
FORMULA_NAME FunctionPointer-PT-c008-UpperBounds-08
FORMULA_NAME FunctionPointer-PT-c008-UpperBounds-09
FORMULA_NAME FunctionPointer-PT-c008-UpperBounds-10
FORMULA_NAME FunctionPointer-PT-c008-UpperBounds-11
FORMULA_NAME FunctionPointer-PT-c008-UpperBounds-12
FORMULA_NAME FunctionPointer-PT-c008-UpperBounds-13
FORMULA_NAME FunctionPointer-PT-c008-UpperBounds-14
FORMULA_NAME FunctionPointer-PT-c008-UpperBounds-15

=== Now, execution of the tool begins

BK_START 1779703564704

Invoking MCC driver with
GOLD_TOOL=
BK_EXAMINATION=UpperBounds
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=FunctionPointer-PT-c008
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
UpperBounds PT
Running Version 202505121319
[2026-05-25 10:06:06] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, UpperBounds, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2026-05-25 10:06:06] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-25 10:06:06] [INFO ] Load time of PNML (sax parser for PT used): 371 ms
[2026-05-25 10:06:06] [INFO ] Transformed 2826 places.
[2026-05-25 10:06:06] [INFO ] Transformed 8960 transitions.
[2026-05-25 10:06:06] [INFO ] Parsed PT model containing 2826 places and 8960 transitions and 36096 arcs in 498 ms.
Parsed 16 properties from file /home/mcc/execution/UpperBounds.xml in 7 ms.
Deduced a syphon composed of 1198 places in 46 ms
Reduce places removed 1198 places and 2998 transitions.
FORMULA FunctionPointer-PT-c008-UpperBounds-00 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA FunctionPointer-PT-c008-UpperBounds-02 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA FunctionPointer-PT-c008-UpperBounds-04 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA FunctionPointer-PT-c008-UpperBounds-05 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA FunctionPointer-PT-c008-UpperBounds-07 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA FunctionPointer-PT-c008-UpperBounds-09 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA FunctionPointer-PT-c008-UpperBounds-13 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA FunctionPointer-PT-c008-UpperBounds-15 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
Current structural bounds on expressions (Initially) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (Before main loop) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2026-05-25 10:06:06] [INFO ] Flow matrix only has 3540 transitions (discarded 2422 similar events)
// Phase 1: matrix 3540 rows 1628 cols
[2026-05-25 10:06:06] [INFO ] Computed 4 invariants in 118 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[1, +inf, +inf, +inf, +inf, 8, 8, +inf]
RANDOM walk for 10003 steps (2 resets) in 313 ms. (31 steps per ms)
FORMULA FunctionPointer-PT-c008-UpperBounds-01 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 70005 steps (15 resets) in 209 ms. (333 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[2, 0, 1, 1, 2, 0, 0] Max Struct:[+inf, +inf, +inf, +inf, 8, 8, +inf]
[2026-05-25 10:06:07] [INFO ] Flow matrix only has 3540 transitions (discarded 2422 similar events)
[2026-05-25 10:06:07] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 10:06:07] [INFO ] [Real]Absence check using 3 positive place invariants in 17 ms returned sat
[2026-05-25 10:06:07] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 3 ms returned sat
[2026-05-25 10:06:08] [INFO ] [Real]Absence check using state equation in 825 ms returned sat
[2026-05-25 10:06:08] [INFO ] State equation strengthened by 479 read => feed constraints.
[2026-05-25 10:06:09] [INFO ] [Real]Added 479 Read/Feed constraints in 240 ms returned sat
[2026-05-25 10:06:09] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 10:06:09] [INFO ] [Nat]Absence check using 3 positive place invariants in 15 ms returned sat
[2026-05-25 10:06:09] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 2 ms returned sat
[2026-05-25 10:06:10] [INFO ] [Nat]Absence check using state equation in 715 ms returned sat
[2026-05-25 10:06:10] [INFO ] [Nat]Added 479 Read/Feed constraints in 125 ms returned sat
[2026-05-25 10:06:11] [INFO ] Computed and/alt/rep : 351/504/351 causal constraints (skipped 3187 transitions) in 833 ms.
[2026-05-25 10:06:11] [INFO ] Added : 1 causal constraints over 1 iterations in 1337 ms. Result :sat
Minimization took 585 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 10:06:12] [INFO ] [Real]Absence check using 3 positive place invariants in 13 ms returned sat
[2026-05-25 10:06:12] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 4 ms returned sat
[2026-05-25 10:06:13] [INFO ] [Real]Absence check using state equation in 734 ms returned sat
[2026-05-25 10:06:13] [INFO ] [Real]Added 479 Read/Feed constraints in 132 ms returned sat
[2026-05-25 10:06:13] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 10:06:13] [INFO ] [Nat]Absence check using 3 positive place invariants in 16 ms returned sat
[2026-05-25 10:06:13] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2026-05-25 10:06:14] [INFO ] [Nat]Absence check using state equation in 723 ms returned sat
[2026-05-25 10:06:14] [INFO ] [Nat]Added 479 Read/Feed constraints in 139 ms returned sat
[2026-05-25 10:06:15] [INFO ] Computed and/alt/rep : 351/504/351 causal constraints (skipped 3187 transitions) in 918 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:06:17] [INFO ] Deduced a trap composed of 133 places in 1397 ms of which 238 ms to minimize.
[2026-05-25 10:06:17] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 1631 ms
[2026-05-25 10:06:17] [INFO ] Added : 2 causal constraints over 1 iterations in 3087 ms. Result :sat
Minimization took 576 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 10:06:18] [INFO ] [Real]Absence check using 3 positive place invariants in 13 ms returned sat
[2026-05-25 10:06:18] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 0 ms returned sat
[2026-05-25 10:06:19] [INFO ] [Real]Absence check using state equation in 699 ms returned sat
[2026-05-25 10:06:19] [INFO ] [Real]Added 479 Read/Feed constraints in 171 ms returned sat
[2026-05-25 10:06:19] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 10:06:19] [INFO ] [Nat]Absence check using 3 positive place invariants in 14 ms returned sat
[2026-05-25 10:06:19] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2026-05-25 10:06:20] [INFO ] [Nat]Absence check using state equation in 717 ms returned sat
[2026-05-25 10:06:20] [INFO ] [Nat]Added 479 Read/Feed constraints in 193 ms returned sat
[2026-05-25 10:06:21] [INFO ] Computed and/alt/rep : 351/504/351 causal constraints (skipped 3187 transitions) in 535 ms.
[2026-05-25 10:06:21] [INFO ] Added : 1 causal constraints over 1 iterations in 920 ms. Result :sat
Minimization took 578 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 10:06:22] [INFO ] [Real]Absence check using 3 positive place invariants in 14 ms returned sat
[2026-05-25 10:06:22] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 0 ms returned sat
[2026-05-25 10:06:23] [INFO ] [Real]Absence check using state equation in 731 ms returned sat
[2026-05-25 10:06:23] [INFO ] [Real]Added 479 Read/Feed constraints in 138 ms returned sat
[2026-05-25 10:06:23] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 10:06:23] [INFO ] [Nat]Absence check using 3 positive place invariants in 15 ms returned sat
[2026-05-25 10:06:23] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2026-05-25 10:06:24] [INFO ] [Nat]Absence check using state equation in 660 ms returned sat
[2026-05-25 10:06:24] [INFO ] [Nat]Added 479 Read/Feed constraints in 119 ms returned sat
[2026-05-25 10:06:25] [INFO ] Computed and/alt/rep : 351/504/351 causal constraints (skipped 3187 transitions) in 500 ms.
[2026-05-25 10:06:25] [INFO ] Added : 2 causal constraints over 1 iterations in 860 ms. Result :sat
Minimization took 578 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 10:06:26] [INFO ] [Real]Absence check using 3 positive place invariants in 14 ms returned sat
[2026-05-25 10:06:26] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2026-05-25 10:06:26] [INFO ] [Real]Absence check using state equation in 666 ms returned sat
[2026-05-25 10:06:26] [INFO ] [Real]Added 479 Read/Feed constraints in 111 ms returned sat
[2026-05-25 10:06:27] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 10:06:27] [INFO ] [Nat]Absence check using 3 positive place invariants in 14 ms returned sat
[2026-05-25 10:06:27] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2026-05-25 10:06:27] [INFO ] [Nat]Absence check using state equation in 693 ms returned sat
[2026-05-25 10:06:28] [INFO ] [Nat]Added 479 Read/Feed constraints in 95 ms returned sat
[2026-05-25 10:06:28] [INFO ] Computed and/alt/rep : 351/504/351 causal constraints (skipped 3187 transitions) in 504 ms.
[2026-05-25 10:06:28] [INFO ] Added : 0 causal constraints over 0 iterations in 726 ms. Result :sat
Minimization took 575 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 10:06:29] [INFO ] [Real]Absence check using 3 positive place invariants in 13 ms returned sat
[2026-05-25 10:06:29] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2026-05-25 10:06:30] [INFO ] [Real]Absence check using state equation in 688 ms returned sat
[2026-05-25 10:06:30] [INFO ] [Real]Added 479 Read/Feed constraints in 107 ms returned sat
[2026-05-25 10:06:30] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 10:06:30] [INFO ] [Nat]Absence check using 3 positive place invariants in 14 ms returned sat
[2026-05-25 10:06:30] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2026-05-25 10:06:31] [INFO ] [Nat]Absence check using state equation in 695 ms returned sat
[2026-05-25 10:06:31] [INFO ] [Nat]Added 479 Read/Feed constraints in 280 ms returned sat
[2026-05-25 10:06:32] [INFO ] Computed and/alt/rep : 351/504/351 causal constraints (skipped 3187 transitions) in 493 ms.
[2026-05-25 10:06:32] [INFO ] Added : 3 causal constraints over 1 iterations in 857 ms. Result :sat
Minimization took 576 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 10:06:33] [INFO ] [Real]Absence check using 3 positive place invariants in 13 ms returned sat
[2026-05-25 10:06:33] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 0 ms returned sat
[2026-05-25 10:06:34] [INFO ] [Real]Absence check using state equation in 682 ms returned sat
[2026-05-25 10:06:34] [INFO ] [Real]Added 479 Read/Feed constraints in 151 ms returned sat
[2026-05-25 10:06:34] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 10:06:34] [INFO ] [Nat]Absence check using 3 positive place invariants in 14 ms returned sat
[2026-05-25 10:06:34] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 0 ms returned sat
[2026-05-25 10:06:35] [INFO ] [Nat]Absence check using state equation in 687 ms returned sat
[2026-05-25 10:06:35] [INFO ] [Nat]Added 479 Read/Feed constraints in 94 ms returned sat
[2026-05-25 10:06:35] [INFO ] Computed and/alt/rep : 351/504/351 causal constraints (skipped 3187 transitions) in 551 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:06:37] [INFO ] Deduced a trap composed of 133 places in 1426 ms of which 236 ms to minimize.
[2026-05-25 10:06:37] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 1664 ms
[2026-05-25 10:06:38] [INFO ] Added : 2 causal constraints over 1 iterations in 2643 ms. Result :sat
Minimization took 577 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[2, 0, 1, 1, 2, 0, 0] Max Struct:[+inf, +inf, +inf, +inf, 8, 8, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[2, 0, 1, 1, 2, 0, 0] Max Struct:[+inf, +inf, +inf, +inf, 8, 8, +inf]
Support contains 7 out of 1628 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 1628/1628 places, 5962/5962 transitions.
Graph (complete) has 7332 edges and 1628 vertex of which 1419 are kept as prefixes of interest. Removing 209 places using SCC suffix rule.13 ms
Discarding 209 places :
Also discarding 0 output transitions
Drop transitions (Empty/Sink Transition effects.) removed 384 transitions
Reduce isomorphic transitions removed 384 transitions.
Iterating post reduction 0 with 384 rules applied. Total rules applied 385 place count 1419 transition count 5578
Discarding 299 places :
Symmetric choice reduction at 1 with 299 rule applications. Total rules 684 place count 1120 transition count 3300
Iterating global reduction 1 with 299 rules applied. Total rules applied 983 place count 1120 transition count 3300
Ensure Unique test removed 360 transitions
Reduce isomorphic transitions removed 360 transitions.
Iterating post reduction 1 with 360 rules applied. Total rules applied 1343 place count 1120 transition count 2940
Discarding 155 places :
Symmetric choice reduction at 2 with 155 rule applications. Total rules 1498 place count 965 transition count 2630
Iterating global reduction 2 with 155 rules applied. Total rules applied 1653 place count 965 transition count 2630
Ensure Unique test removed 68 transitions
Reduce isomorphic transitions removed 68 transitions.
Iterating post reduction 2 with 68 rules applied. Total rules applied 1721 place count 965 transition count 2562
Discarding 14 places :
Symmetric choice reduction at 3 with 14 rule applications. Total rules 1735 place count 951 transition count 2534
Iterating global reduction 3 with 14 rules applied. Total rules applied 1749 place count 951 transition count 2534
Discarding 14 places :
Symmetric choice reduction at 3 with 14 rule applications. Total rules 1763 place count 937 transition count 2506
Iterating global reduction 3 with 14 rules applied. Total rules applied 1777 place count 937 transition count 2506
Discarding 14 places :
Symmetric choice reduction at 3 with 14 rule applications. Total rules 1791 place count 923 transition count 2478
Iterating global reduction 3 with 14 rules applied. Total rules applied 1805 place count 923 transition count 2478
Discarding 14 places :
Symmetric choice reduction at 3 with 14 rule applications. Total rules 1819 place count 909 transition count 2450
Iterating global reduction 3 with 14 rules applied. Total rules applied 1833 place count 909 transition count 2450
Discarding 14 places :
Symmetric choice reduction at 3 with 14 rule applications. Total rules 1847 place count 895 transition count 2422
Iterating global reduction 3 with 14 rules applied. Total rules applied 1861 place count 895 transition count 2422
Discarding 13 places :
Symmetric choice reduction at 3 with 13 rule applications. Total rules 1874 place count 882 transition count 2396
Iterating global reduction 3 with 13 rules applied. Total rules applied 1887 place count 882 transition count 2396
Discarding 13 places :
Symmetric choice reduction at 3 with 13 rule applications. Total rules 1900 place count 869 transition count 2370
Iterating global reduction 3 with 13 rules applied. Total rules applied 1913 place count 869 transition count 2370
Discarding 53 places :
Symmetric choice reduction at 3 with 53 rule applications. Total rules 1966 place count 816 transition count 2172
Iterating global reduction 3 with 53 rules applied. Total rules applied 2019 place count 816 transition count 2172
Discarding 59 places :
Symmetric choice reduction at 3 with 59 rule applications. Total rules 2078 place count 757 transition count 1936
Iterating global reduction 3 with 59 rules applied. Total rules applied 2137 place count 757 transition count 1936
Discarding 59 places :
Symmetric choice reduction at 3 with 59 rule applications. Total rules 2196 place count 698 transition count 1792
Iterating global reduction 3 with 59 rules applied. Total rules applied 2255 place count 698 transition count 1792
Discarding 59 places :
Symmetric choice reduction at 3 with 59 rule applications. Total rules 2314 place count 639 transition count 1674
Iterating global reduction 3 with 59 rules applied. Total rules applied 2373 place count 639 transition count 1674
Discarding 59 places :
Symmetric choice reduction at 3 with 59 rule applications. Total rules 2432 place count 580 transition count 1556
Iterating global reduction 3 with 59 rules applied. Total rules applied 2491 place count 580 transition count 1556
Discarding 59 places :
Symmetric choice reduction at 3 with 59 rule applications. Total rules 2550 place count 521 transition count 1438
Iterating global reduction 3 with 59 rules applied. Total rules applied 2609 place count 521 transition count 1438
Discarding 58 places :
Symmetric choice reduction at 3 with 58 rule applications. Total rules 2667 place count 463 transition count 1322
Iterating global reduction 3 with 58 rules applied. Total rules applied 2725 place count 463 transition count 1322
Discarding 13 places :
Symmetric choice reduction at 3 with 13 rule applications. Total rules 2738 place count 450 transition count 1296
Iterating global reduction 3 with 13 rules applied. Total rules applied 2751 place count 450 transition count 1296
Drop transitions (Redundant composition of simpler transitions.) removed 10 transitions
Redundant transition composition rules discarded 10 transitions
Iterating global reduction 3 with 10 rules applied. Total rules applied 2761 place count 450 transition count 1286
Applied a total of 2761 rules in 1131 ms. Remains 450 /1628 variables (removed 1178) and now considering 1286/5962 (removed 4676) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 1140 ms. Remains : 450/1628 places, 1286/5962 transitions.
[2026-05-25 10:06:39] [INFO ] Flow matrix only has 736 transitions (discarded 550 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {228=1, 347=1, 548=1, 725=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {246=1, 365=1, 694=1, 734=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 109 ms. (steps per millisecond=91 ) properties (out of 7) seen :[1, 0, 3, 0, 1, 0, 0]
Current structural bounds on expressions (after cover walk) : Max Seen:[2, 0, 3, 1, 2, 0, 0] Max Struct:[+inf, +inf, +inf, +inf, 8, 8, +inf]
[2026-05-25 10:06:40] [INFO ] Flow matrix only has 736 transitions (discarded 550 similar events)
// Phase 1: matrix 736 rows 450 cols
[2026-05-25 10:06:40] [INFO ] Computed 3 invariants in 4 ms
Current structural bounds on expressions (after invariants) : Max Seen:[2, 0, 3, 1, 2, 0, 0] Max Struct:[+inf, +inf, +inf, +inf, 8, 8, +inf]
RANDOM walk for 1000006 steps (2 resets) in 2804 ms. (356 steps per ms)
FORMULA FunctionPointer-PT-c008-UpperBounds-11 8 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 6000006 steps (12 resets) in 4295 ms. (1396 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[4, 4, 199, 3, 1, 5] Max Struct:[+inf, +inf, +inf, +inf, 8, +inf]
[2026-05-25 10:06:47] [INFO ] Flow matrix only has 736 transitions (discarded 550 similar events)
[2026-05-25 10:06:47] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:06:47] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:06:47] [INFO ] [Real]Absence check using state equation in 138 ms returned sat
[2026-05-25 10:06:47] [INFO ] State equation strengthened by 86 read => feed constraints.
[2026-05-25 10:06:47] [INFO ] [Real]Added 86 Read/Feed constraints in 37 ms returned sat
[2026-05-25 10:06:47] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:06:47] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:06:47] [INFO ] [Nat]Absence check using state equation in 141 ms returned sat
[2026-05-25 10:06:48] [INFO ] [Nat]Added 86 Read/Feed constraints in 30 ms returned sat
[2026-05-25 10:06:48] [INFO ] Computed and/alt/rep : 351/2346/345 causal constraints (skipped 389 transitions) in 73 ms.
[2026-05-25 10:06:48] [INFO ] Added : 8 causal constraints over 4 iterations in 335 ms. Result :sat
Minimization took 276 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:06:48] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 10:06:48] [INFO ] [Real]Absence check using state equation in 143 ms returned sat
[2026-05-25 10:06:48] [INFO ] [Real]Added 86 Read/Feed constraints in 29 ms returned sat
[2026-05-25 10:06:48] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:06:49] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:06:49] [INFO ] [Nat]Absence check using state equation in 139 ms returned sat
[2026-05-25 10:06:49] [INFO ] [Nat]Added 86 Read/Feed constraints in 29 ms returned sat
[2026-05-25 10:06:49] [INFO ] Computed and/alt/rep : 351/2346/345 causal constraints (skipped 389 transitions) in 70 ms.
[2026-05-25 10:06:49] [INFO ] Added : 24 causal constraints over 7 iterations in 423 ms. Result :sat
Minimization took 309 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:06:50] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 10:06:50] [INFO ] [Real]Absence check using state equation in 137 ms returned sat
[2026-05-25 10:06:50] [INFO ] [Real]Added 86 Read/Feed constraints in 35 ms returned sat
[2026-05-25 10:06:50] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:06:50] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 10:06:50] [INFO ] [Nat]Absence check using state equation in 131 ms returned sat
[2026-05-25 10:06:50] [INFO ] [Nat]Added 86 Read/Feed constraints in 28 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:06:50] [INFO ] Deduced a trap composed of 74 places in 242 ms of which 36 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:06:51] [INFO ] Deduced a trap composed of 80 places in 274 ms of which 44 ms to minimize.
[2026-05-25 10:06:51] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 604 ms
[2026-05-25 10:06:51] [INFO ] Computed and/alt/rep : 351/2346/345 causal constraints (skipped 389 transitions) in 71 ms.
[2026-05-25 10:06:51] [INFO ] Added : 40 causal constraints over 9 iterations in 442 ms. Result :sat
Minimization took 369 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:06:51] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 10:06:52] [INFO ] [Real]Absence check using state equation in 128 ms returned sat
[2026-05-25 10:06:52] [INFO ] [Real]Added 86 Read/Feed constraints in 27 ms returned sat
[2026-05-25 10:06:52] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:06:52] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 10:06:52] [INFO ] [Nat]Absence check using state equation in 132 ms returned sat
[2026-05-25 10:06:52] [INFO ] [Nat]Added 86 Read/Feed constraints in 37 ms returned sat
[2026-05-25 10:06:52] [INFO ] Computed and/alt/rep : 351/2346/345 causal constraints (skipped 389 transitions) in 69 ms.
[2026-05-25 10:06:52] [INFO ] Added : 14 causal constraints over 4 iterations in 277 ms. Result :sat
Minimization took 296 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:06:53] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:06:53] [INFO ] [Real]Absence check using state equation in 142 ms returned sat
[2026-05-25 10:06:53] [INFO ] [Real]Added 86 Read/Feed constraints in 45 ms returned sat
[2026-05-25 10:06:53] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:06:53] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:06:53] [INFO ] [Nat]Absence check using state equation in 139 ms returned sat
[2026-05-25 10:06:53] [INFO ] [Nat]Added 86 Read/Feed constraints in 43 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:06:53] [INFO ] Deduced a trap composed of 74 places in 246 ms of which 34 ms to minimize.
[2026-05-25 10:06:53] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 296 ms
[2026-05-25 10:06:53] [INFO ] Computed and/alt/rep : 351/2346/345 causal constraints (skipped 389 transitions) in 85 ms.
[2026-05-25 10:06:54] [INFO ] Added : 2 causal constraints over 1 iterations in 176 ms. Result :sat
Minimization took 342 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:06:54] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 10:06:54] [INFO ] [Real]Absence check using state equation in 147 ms returned sat
[2026-05-25 10:06:54] [INFO ] [Real]Added 86 Read/Feed constraints in 24 ms returned sat
[2026-05-25 10:06:54] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:06:54] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 10:06:54] [INFO ] [Nat]Absence check using state equation in 141 ms returned sat
[2026-05-25 10:06:54] [INFO ] [Nat]Added 86 Read/Feed constraints in 22 ms returned sat
[2026-05-25 10:06:55] [INFO ] Computed and/alt/rep : 351/2346/345 causal constraints (skipped 389 transitions) in 70 ms.
[2026-05-25 10:06:55] [INFO ] Added : 17 causal constraints over 4 iterations in 345 ms. Result :sat
Minimization took 261 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[4, 4, 199, 3, 1, 5] Max Struct:[+inf, +inf, +inf, +inf, 8, +inf]
FORMULA FunctionPointer-PT-c008-UpperBounds-12 8 TECHNIQUES TOPOLOGICAL PARIKH_WALK
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[4, 6, 199, 3, 15] Max Struct:[+inf, +inf, +inf, +inf, +inf]
Support contains 5 out of 450 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 450/450 places, 1286/1286 transitions.
Applied a total of 0 rules in 52 ms. Remains 450 /450 variables (removed 0) and now considering 1286/1286 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 52 ms. Remains : 450/450 places, 1286/1286 transitions.
[2026-05-25 10:06:57] [INFO ] Flow matrix only has 736 transitions (discarded 550 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {228=1, 347=1, 548=1, 725=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {246=1, 365=1, 694=1, 734=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 115 ms. (steps per millisecond=86 ) properties (out of 5) seen :[0, 2, 2, 0, 0]
Current structural bounds on expressions (after cover walk) : Max Seen:[4, 6, 199, 3, 15] Max Struct:[+inf, +inf, +inf, +inf, +inf]
[2026-05-25 10:06:57] [INFO ] Flow matrix only has 736 transitions (discarded 550 similar events)
[2026-05-25 10:06:57] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[4, 6, 199, 3, 15] Max Struct:[+inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 2869 ms. (348 steps per ms)
BEST_FIRST walk for 5000005 steps (10 resets) in 3510 ms. (1424 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[4, 89, 199, 3, 15] Max Struct:[+inf, +inf, +inf, +inf, +inf]
[2026-05-25 10:07:04] [INFO ] Flow matrix only has 736 transitions (discarded 550 similar events)
[2026-05-25 10:07:04] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:07:04] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 10:07:04] [INFO ] [Real]Absence check using state equation in 134 ms returned sat
[2026-05-25 10:07:04] [INFO ] State equation strengthened by 86 read => feed constraints.
[2026-05-25 10:07:04] [INFO ] [Real]Added 86 Read/Feed constraints in 40 ms returned sat
[2026-05-25 10:07:04] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:07:04] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 10:07:04] [INFO ] [Nat]Absence check using state equation in 132 ms returned sat
[2026-05-25 10:07:04] [INFO ] [Nat]Added 86 Read/Feed constraints in 29 ms returned sat
[2026-05-25 10:07:04] [INFO ] Computed and/alt/rep : 351/2346/345 causal constraints (skipped 389 transitions) in 71 ms.
[2026-05-25 10:07:04] [INFO ] Added : 8 causal constraints over 4 iterations in 292 ms. Result :sat
Minimization took 257 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:07:05] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 10:07:05] [INFO ] [Real]Absence check using state equation in 136 ms returned sat
[2026-05-25 10:07:05] [INFO ] [Real]Added 86 Read/Feed constraints in 34 ms returned sat
[2026-05-25 10:07:05] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:07:05] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 10:07:05] [INFO ] [Nat]Absence check using state equation in 128 ms returned sat
[2026-05-25 10:07:05] [INFO ] [Nat]Added 86 Read/Feed constraints in 27 ms returned sat
[2026-05-25 10:07:05] [INFO ] Computed and/alt/rep : 351/2346/345 causal constraints (skipped 389 transitions) in 72 ms.
[2026-05-25 10:07:06] [INFO ] Added : 26 causal constraints over 8 iterations in 425 ms. Result :sat
Minimization took 326 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:07:06] [INFO ] [Real]Absence check using 3 positive place invariants in 7 ms returned sat
[2026-05-25 10:07:06] [INFO ] [Real]Absence check using state equation in 137 ms returned sat
[2026-05-25 10:07:06] [INFO ] [Real]Added 86 Read/Feed constraints in 35 ms returned sat
[2026-05-25 10:07:06] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:07:06] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 10:07:07] [INFO ] [Nat]Absence check using state equation in 136 ms returned sat
[2026-05-25 10:07:07] [INFO ] [Nat]Added 86 Read/Feed constraints in 31 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:07:07] [INFO ] Deduced a trap composed of 74 places in 235 ms of which 35 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:07:07] [INFO ] Deduced a trap composed of 80 places in 244 ms of which 44 ms to minimize.
[2026-05-25 10:07:07] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 561 ms
[2026-05-25 10:07:07] [INFO ] Computed and/alt/rep : 351/2346/345 causal constraints (skipped 389 transitions) in 68 ms.
[2026-05-25 10:07:08] [INFO ] Added : 40 causal constraints over 9 iterations in 415 ms. Result :sat
Minimization took 386 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:07:08] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 10:07:08] [INFO ] [Real]Absence check using state equation in 141 ms returned sat
[2026-05-25 10:07:08] [INFO ] [Real]Added 86 Read/Feed constraints in 27 ms returned sat
[2026-05-25 10:07:08] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:07:08] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 10:07:08] [INFO ] [Nat]Absence check using state equation in 157 ms returned sat
[2026-05-25 10:07:08] [INFO ] [Nat]Added 86 Read/Feed constraints in 36 ms returned sat
[2026-05-25 10:07:09] [INFO ] Computed and/alt/rep : 351/2346/345 causal constraints (skipped 389 transitions) in 70 ms.
[2026-05-25 10:07:09] [INFO ] Added : 14 causal constraints over 4 iterations in 273 ms. Result :sat
Minimization took 305 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:07:09] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 10:07:09] [INFO ] [Real]Absence check using state equation in 142 ms returned sat
[2026-05-25 10:07:09] [INFO ] [Real]Added 86 Read/Feed constraints in 23 ms returned sat
[2026-05-25 10:07:09] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:07:09] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 10:07:10] [INFO ] [Nat]Absence check using state equation in 143 ms returned sat
[2026-05-25 10:07:10] [INFO ] [Nat]Added 86 Read/Feed constraints in 22 ms returned sat
[2026-05-25 10:07:10] [INFO ] Computed and/alt/rep : 351/2346/345 causal constraints (skipped 389 transitions) in 68 ms.
[2026-05-25 10:07:10] [INFO ] Added : 15 causal constraints over 4 iterations in 346 ms. Result :sat
Minimization took 258 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[4, 89, 199, 3, 15] Max Struct:[+inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[4, 89, 199, 6, 15] Max Struct:[+inf, +inf, +inf, +inf, +inf]
Support contains 5 out of 450 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 450/450 places, 1286/1286 transitions.
Applied a total of 0 rules in 57 ms. Remains 450 /450 variables (removed 0) and now considering 1286/1286 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 58 ms. Remains : 450/450 places, 1286/1286 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 450/450 places, 1286/1286 transitions.
Applied a total of 0 rules in 52 ms. Remains 450 /450 variables (removed 0) and now considering 1286/1286 (removed 0) transitions.
[2026-05-25 10:07:13] [INFO ] Flow matrix only has 736 transitions (discarded 550 similar events)
[2026-05-25 10:07:13] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 10:07:13] [INFO ] Implicit Places using invariants in 387 ms returned []
[2026-05-25 10:07:13] [INFO ] Flow matrix only has 736 transitions (discarded 550 similar events)
[2026-05-25 10:07:13] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 10:07:13] [INFO ] State equation strengthened by 86 read => feed constraints.
[2026-05-25 10:07:17] [INFO ] Implicit Places using invariants and state equation in 3895 ms returned []
Implicit Place search using SMT with State Equation took 4288 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-25 10:07:17] [INFO ] Redundant transitions in 92 ms returned []
Running 1284 sub problems to find dead transitions.
[2026-05-25 10:07:17] [INFO ] Flow matrix only has 736 transitions (discarded 550 similar events)
[2026-05-25 10:07:17] [INFO ] Invariant cache hit.
[2026-05-25 10:07:17] [INFO ] State equation strengthened by 86 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/450 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1284 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:07:28] [INFO ] Deduced a trap composed of 131 places in 145 ms of which 6 ms to minimize.
At refinement iteration 1 (INCLUDED_ONLY) 0/450 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1284 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 450/1186 variables, and 4 constraints, problems are : Problem set: 0 solved, 1284 unsolved in 30038 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/450 constraints, ReadFeed: 0/86 constraints, PredecessorRefiner: 1284/1284 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1284 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/450 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1284 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/450 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1284 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/450 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1284 unsolved
At refinement iteration 3 (OVERLAPS) 736/1186 variables, 450/454 constraints. Problems are: Problem set: 0 solved, 1284 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1186 variables, 86/540 constraints. Problems are: Problem set: 0 solved, 1284 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1186/1186 variables, and 1824 constraints, problems are : Problem set: 0 solved, 1284 unsolved in 30870 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 450/450 constraints, ReadFeed: 86/86 constraints, PredecessorRefiner: 1284/1284 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 62993ms problems are : Problem set: 0 solved, 1284 unsolved
Search for dead transitions found 0 dead transitions in 63011ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 67469 ms. Remains : 450/450 places, 1286/1286 transitions.
[2026-05-25 10:08:20] [INFO ] Flow matrix only has 736 transitions (discarded 550 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {228=1, 347=1, 548=1, 725=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {246=1, 365=1, 694=1, 734=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 67 ms. (steps per millisecond=149 ) properties (out of 5) seen :[0, 0, 2, 0, 0]
Current structural bounds on expressions (after cover walk) : Max Seen:[4, 89, 199, 6, 15] Max Struct:[+inf, +inf, +inf, +inf, +inf]
[2026-05-25 10:08:20] [INFO ] Flow matrix only has 736 transitions (discarded 550 similar events)
[2026-05-25 10:08:20] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[4, 89, 199, 6, 15] Max Struct:[+inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 2892 ms. (345 steps per ms)
BEST_FIRST walk for 5000005 steps (10 resets) in 3555 ms. (1406 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[4, 89, 238, 11, 15] Max Struct:[+inf, +inf, +inf, +inf, +inf]
[2026-05-25 10:08:27] [INFO ] Flow matrix only has 736 transitions (discarded 550 similar events)
[2026-05-25 10:08:27] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:08:27] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:08:27] [INFO ] [Real]Absence check using state equation in 141 ms returned sat
[2026-05-25 10:08:27] [INFO ] State equation strengthened by 86 read => feed constraints.
[2026-05-25 10:08:27] [INFO ] [Real]Added 86 Read/Feed constraints in 27 ms returned sat
[2026-05-25 10:08:27] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:08:27] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:08:27] [INFO ] [Nat]Absence check using state equation in 143 ms returned sat
[2026-05-25 10:08:27] [INFO ] [Nat]Added 86 Read/Feed constraints in 29 ms returned sat
[2026-05-25 10:08:27] [INFO ] Computed and/alt/rep : 351/2346/345 causal constraints (skipped 389 transitions) in 77 ms.
[2026-05-25 10:08:28] [INFO ] Added : 8 causal constraints over 4 iterations in 302 ms. Result :sat
Minimization took 260 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:08:28] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:08:28] [INFO ] [Real]Absence check using state equation in 130 ms returned sat
[2026-05-25 10:08:28] [INFO ] [Real]Added 86 Read/Feed constraints in 32 ms returned sat
[2026-05-25 10:08:28] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:08:28] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 10:08:28] [INFO ] [Nat]Absence check using state equation in 137 ms returned sat
[2026-05-25 10:08:28] [INFO ] [Nat]Added 86 Read/Feed constraints in 26 ms returned sat
[2026-05-25 10:08:29] [INFO ] Computed and/alt/rep : 351/2346/345 causal constraints (skipped 389 transitions) in 71 ms.
[2026-05-25 10:08:29] [INFO ] Added : 26 causal constraints over 8 iterations in 414 ms. Result :sat
Minimization took 321 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:08:29] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 10:08:29] [INFO ] [Real]Absence check using state equation in 127 ms returned sat
[2026-05-25 10:08:29] [INFO ] [Real]Added 86 Read/Feed constraints in 35 ms returned sat
[2026-05-25 10:08:29] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:08:30] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:08:30] [INFO ] [Nat]Absence check using state equation in 137 ms returned sat
[2026-05-25 10:08:30] [INFO ] [Nat]Added 86 Read/Feed constraints in 24 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:08:30] [INFO ] Deduced a trap composed of 74 places in 237 ms of which 36 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:08:30] [INFO ] Deduced a trap composed of 80 places in 238 ms of which 43 ms to minimize.
[2026-05-25 10:08:30] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 559 ms
[2026-05-25 10:08:30] [INFO ] Computed and/alt/rep : 351/2346/345 causal constraints (skipped 389 transitions) in 69 ms.
[2026-05-25 10:08:31] [INFO ] Added : 40 causal constraints over 9 iterations in 438 ms. Result :sat
Minimization took 377 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:08:31] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:08:31] [INFO ] [Real]Absence check using state equation in 128 ms returned sat
[2026-05-25 10:08:31] [INFO ] [Real]Added 86 Read/Feed constraints in 29 ms returned sat
[2026-05-25 10:08:31] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:08:31] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:08:32] [INFO ] [Nat]Absence check using state equation in 126 ms returned sat
[2026-05-25 10:08:32] [INFO ] [Nat]Added 86 Read/Feed constraints in 28 ms returned sat
[2026-05-25 10:08:32] [INFO ] Computed and/alt/rep : 351/2346/345 causal constraints (skipped 389 transitions) in 69 ms.
[2026-05-25 10:08:32] [INFO ] Added : 10 causal constraints over 4 iterations in 403 ms. Result :sat
Minimization took 260 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:08:32] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 10:08:32] [INFO ] [Real]Absence check using state equation in 149 ms returned sat
[2026-05-25 10:08:33] [INFO ] [Real]Added 86 Read/Feed constraints in 35 ms returned sat
[2026-05-25 10:08:33] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:08:33] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:08:33] [INFO ] [Nat]Absence check using state equation in 135 ms returned sat
[2026-05-25 10:08:33] [INFO ] [Nat]Added 86 Read/Feed constraints in 22 ms returned sat
[2026-05-25 10:08:33] [INFO ] Computed and/alt/rep : 351/2346/345 causal constraints (skipped 389 transitions) in 68 ms.
[2026-05-25 10:08:33] [INFO ] Added : 15 causal constraints over 4 iterations in 373 ms. Result :sat
Minimization took 252 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[4, 89, 238, 11, 15] Max Struct:[+inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[11, 89, 238, 11, 15] Max Struct:[+inf, +inf, +inf, +inf, +inf]
Support contains 5 out of 450 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 450/450 places, 1286/1286 transitions.
Applied a total of 0 rules in 51 ms. Remains 450 /450 variables (removed 0) and now considering 1286/1286 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 51 ms. Remains : 450/450 places, 1286/1286 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 450/450 places, 1286/1286 transitions.
Applied a total of 0 rules in 51 ms. Remains 450 /450 variables (removed 0) and now considering 1286/1286 (removed 0) transitions.
[2026-05-25 10:08:36] [INFO ] Flow matrix only has 736 transitions (discarded 550 similar events)
[2026-05-25 10:08:36] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 10:08:36] [INFO ] Implicit Places using invariants in 327 ms returned []
[2026-05-25 10:08:36] [INFO ] Flow matrix only has 736 transitions (discarded 550 similar events)
[2026-05-25 10:08:36] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 10:08:37] [INFO ] State equation strengthened by 86 read => feed constraints.
[2026-05-25 10:08:40] [INFO ] Implicit Places using invariants and state equation in 3854 ms returned []
Implicit Place search using SMT with State Equation took 4196 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-25 10:08:40] [INFO ] Redundant transitions in 35 ms returned []
Running 1284 sub problems to find dead transitions.
[2026-05-25 10:08:40] [INFO ] Flow matrix only has 736 transitions (discarded 550 similar events)
[2026-05-25 10:08:40] [INFO ] Invariant cache hit.
[2026-05-25 10:08:40] [INFO ] State equation strengthened by 86 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/450 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1284 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:08:51] [INFO ] Deduced a trap composed of 131 places in 150 ms of which 6 ms to minimize.
At refinement iteration 1 (INCLUDED_ONLY) 0/450 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1284 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 450/1186 variables, and 4 constraints, problems are : Problem set: 0 solved, 1284 unsolved in 30024 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/450 constraints, ReadFeed: 0/86 constraints, PredecessorRefiner: 1284/1284 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1284 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/450 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1284 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/450 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1284 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/450 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1284 unsolved
At refinement iteration 3 (OVERLAPS) 736/1186 variables, 450/454 constraints. Problems are: Problem set: 0 solved, 1284 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1186 variables, 86/540 constraints. Problems are: Problem set: 0 solved, 1284 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1186/1186 variables, and 1824 constraints, problems are : Problem set: 0 solved, 1284 unsolved in 30854 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 450/450 constraints, ReadFeed: 86/86 constraints, PredecessorRefiner: 1284/1284 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 62570ms problems are : Problem set: 0 solved, 1284 unsolved
Search for dead transitions found 0 dead transitions in 62574ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 66890 ms. Remains : 450/450 places, 1286/1286 transitions.
[2026-05-25 10:09:43] [INFO ] Flow matrix only has 736 transitions (discarded 550 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {228=1, 347=1, 548=1, 725=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {246=1, 365=1, 694=1, 734=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 88 ms. (steps per millisecond=113 ) properties (out of 5) seen :[0, 0, 2, 0, 0]
Current structural bounds on expressions (after cover walk) : Max Seen:[11, 89, 238, 11, 15] Max Struct:[+inf, +inf, +inf, +inf, +inf]
[2026-05-25 10:09:43] [INFO ] Flow matrix only has 736 transitions (discarded 550 similar events)
[2026-05-25 10:09:43] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[11, 89, 238, 11, 15] Max Struct:[+inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 2866 ms. (348 steps per ms)
BEST_FIRST walk for 5000005 steps (10 resets) in 3502 ms. (1427 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[11, 142, 238, 11, 15] Max Struct:[+inf, +inf, +inf, +inf, +inf]
[2026-05-25 10:09:50] [INFO ] Flow matrix only has 736 transitions (discarded 550 similar events)
[2026-05-25 10:09:50] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:09:50] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:09:50] [INFO ] [Real]Absence check using state equation in 136 ms returned sat
[2026-05-25 10:09:50] [INFO ] State equation strengthened by 86 read => feed constraints.
[2026-05-25 10:09:50] [INFO ] [Real]Added 86 Read/Feed constraints in 29 ms returned sat
[2026-05-25 10:09:50] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:09:50] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 10:09:50] [INFO ] [Nat]Absence check using state equation in 138 ms returned sat
[2026-05-25 10:09:50] [INFO ] [Nat]Added 86 Read/Feed constraints in 32 ms returned sat
[2026-05-25 10:09:50] [INFO ] Computed and/alt/rep : 351/2346/345 causal constraints (skipped 389 transitions) in 70 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:09:51] [INFO ] Deduced a trap composed of 74 places in 252 ms of which 38 ms to minimize.
[2026-05-25 10:09:51] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 305 ms
[2026-05-25 10:09:51] [INFO ] Added : 6 causal constraints over 3 iterations in 588 ms. Result :sat
Minimization took 255 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:09:51] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:09:51] [INFO ] [Real]Absence check using state equation in 144 ms returned sat
[2026-05-25 10:09:51] [INFO ] [Real]Added 86 Read/Feed constraints in 33 ms returned sat
[2026-05-25 10:09:51] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:09:51] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:09:52] [INFO ] [Nat]Absence check using state equation in 130 ms returned sat
[2026-05-25 10:09:52] [INFO ] [Nat]Added 86 Read/Feed constraints in 26 ms returned sat
[2026-05-25 10:09:52] [INFO ] Computed and/alt/rep : 351/2346/345 causal constraints (skipped 389 transitions) in 70 ms.
[2026-05-25 10:09:52] [INFO ] Added : 26 causal constraints over 8 iterations in 409 ms. Result :sat
Minimization took 321 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:09:52] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 10:09:53] [INFO ] [Real]Absence check using state equation in 132 ms returned sat
[2026-05-25 10:09:53] [INFO ] [Real]Added 86 Read/Feed constraints in 34 ms returned sat
[2026-05-25 10:09:53] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:09:53] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 10:09:53] [INFO ] [Nat]Absence check using state equation in 128 ms returned sat
[2026-05-25 10:09:53] [INFO ] [Nat]Added 86 Read/Feed constraints in 25 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:09:53] [INFO ] Deduced a trap composed of 74 places in 227 ms of which 36 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:09:53] [INFO ] Deduced a trap composed of 80 places in 239 ms of which 43 ms to minimize.
[2026-05-25 10:09:53] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 552 ms
[2026-05-25 10:09:54] [INFO ] Computed and/alt/rep : 351/2346/345 causal constraints (skipped 389 transitions) in 68 ms.
[2026-05-25 10:09:54] [INFO ] Added : 40 causal constraints over 9 iterations in 415 ms. Result :sat
Minimization took 371 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:09:54] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 10:09:54] [INFO ] [Real]Absence check using state equation in 132 ms returned sat
[2026-05-25 10:09:54] [INFO ] [Real]Added 86 Read/Feed constraints in 29 ms returned sat
[2026-05-25 10:09:55] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:09:55] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 10:09:55] [INFO ] [Nat]Absence check using state equation in 128 ms returned sat
[2026-05-25 10:09:55] [INFO ] [Nat]Added 86 Read/Feed constraints in 28 ms returned sat
[2026-05-25 10:09:55] [INFO ] Computed and/alt/rep : 351/2346/345 causal constraints (skipped 389 transitions) in 70 ms.
[2026-05-25 10:09:55] [INFO ] Added : 10 causal constraints over 4 iterations in 401 ms. Result :sat
Minimization took 253 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:09:56] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:09:56] [INFO ] [Real]Absence check using state equation in 140 ms returned sat
[2026-05-25 10:09:56] [INFO ] [Real]Added 86 Read/Feed constraints in 26 ms returned sat
[2026-05-25 10:09:56] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:09:56] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 10:09:56] [INFO ] [Nat]Absence check using state equation in 136 ms returned sat
[2026-05-25 10:09:56] [INFO ] [Nat]Added 86 Read/Feed constraints in 22 ms returned sat
[2026-05-25 10:09:56] [INFO ] Computed and/alt/rep : 351/2346/345 causal constraints (skipped 389 transitions) in 74 ms.
[2026-05-25 10:09:56] [INFO ] Added : 15 causal constraints over 4 iterations in 334 ms. Result :sat
Minimization took 266 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[11, 142, 238, 11, 15] Max Struct:[+inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[11, 142, 238, 11, 15] Max Struct:[+inf, +inf, +inf, +inf, +inf]
Support contains 5 out of 450 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 450/450 places, 1286/1286 transitions.
Applied a total of 0 rules in 51 ms. Remains 450 /450 variables (removed 0) and now considering 1286/1286 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 52 ms. Remains : 450/450 places, 1286/1286 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 450/450 places, 1286/1286 transitions.
Applied a total of 0 rules in 50 ms. Remains 450 /450 variables (removed 0) and now considering 1286/1286 (removed 0) transitions.
[2026-05-25 10:09:59] [INFO ] Flow matrix only has 736 transitions (discarded 550 similar events)
[2026-05-25 10:09:59] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 10:10:00] [INFO ] Implicit Places using invariants in 312 ms returned []
[2026-05-25 10:10:00] [INFO ] Flow matrix only has 736 transitions (discarded 550 similar events)
[2026-05-25 10:10:00] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 10:10:00] [INFO ] State equation strengthened by 86 read => feed constraints.
[2026-05-25 10:10:04] [INFO ] Implicit Places using invariants and state equation in 3900 ms returned []
Implicit Place search using SMT with State Equation took 4213 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-25 10:10:04] [INFO ] Redundant transitions in 28 ms returned []
Running 1284 sub problems to find dead transitions.
[2026-05-25 10:10:04] [INFO ] Flow matrix only has 736 transitions (discarded 550 similar events)
[2026-05-25 10:10:04] [INFO ] Invariant cache hit.
[2026-05-25 10:10:04] [INFO ] State equation strengthened by 86 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/450 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1284 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:10:14] [INFO ] Deduced a trap composed of 131 places in 143 ms of which 6 ms to minimize.
At refinement iteration 1 (INCLUDED_ONLY) 0/450 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1284 unsolved
Error getting values : (error "ParserException while parsing response: (timeout
org.smtlib.IParser$ParserException: Unbalanced parentheses at end of input")
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 450/1186 variables, and 4 constraints, problems are : Problem set: 0 solved, 1284 unsolved in 30024 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/450 constraints, ReadFeed: 0/86 constraints, PredecessorRefiner: 1284/1284 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1284 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/450 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1284 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/450 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1284 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/450 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1284 unsolved
At refinement iteration 3 (OVERLAPS) 736/1186 variables, 450/454 constraints. Problems are: Problem set: 0 solved, 1284 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1186 variables, 86/540 constraints. Problems are: Problem set: 0 solved, 1284 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1186/1186 variables, and 1824 constraints, problems are : Problem set: 0 solved, 1284 unsolved in 30953 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 450/450 constraints, ReadFeed: 86/86 constraints, PredecessorRefiner: 1284/1284 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 62797ms problems are : Problem set: 0 solved, 1284 unsolved
Search for dead transitions found 0 dead transitions in 62800ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 67098 ms. Remains : 450/450 places, 1286/1286 transitions.
[2026-05-25 10:11:07] [INFO ] Flow matrix only has 736 transitions (discarded 550 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {228=1, 347=1, 548=1, 725=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {246=1, 365=1, 694=1, 734=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 65 ms. (steps per millisecond=153 ) properties (out of 5) seen :[0, 0, 3, 0, 0]
Current structural bounds on expressions (after cover walk) : Max Seen:[11, 142, 238, 11, 15] Max Struct:[+inf, +inf, +inf, +inf, +inf]
[2026-05-25 10:11:07] [INFO ] Flow matrix only has 736 transitions (discarded 550 similar events)
[2026-05-25 10:11:07] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[11, 142, 238, 11, 15] Max Struct:[+inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000003 steps (2 resets) in 2894 ms. (345 steps per ms)
BEST_FIRST walk for 5000005 steps (10 resets) in 3597 ms. (1389 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[11, 142, 238, 249, 123] Max Struct:[+inf, +inf, +inf, +inf, +inf]
[2026-05-25 10:11:13] [INFO ] Flow matrix only has 736 transitions (discarded 550 similar events)
[2026-05-25 10:11:13] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:11:13] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:11:14] [INFO ] [Real]Absence check using state equation in 135 ms returned sat
[2026-05-25 10:11:14] [INFO ] State equation strengthened by 86 read => feed constraints.
[2026-05-25 10:11:14] [INFO ] [Real]Added 86 Read/Feed constraints in 30 ms returned sat
[2026-05-25 10:11:14] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:11:14] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 10:11:14] [INFO ] [Nat]Absence check using state equation in 145 ms returned sat
[2026-05-25 10:11:14] [INFO ] [Nat]Added 86 Read/Feed constraints in 25 ms returned sat
[2026-05-25 10:11:14] [INFO ] Computed and/alt/rep : 351/2346/345 causal constraints (skipped 389 transitions) in 70 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:11:14] [INFO ] Deduced a trap composed of 74 places in 247 ms of which 40 ms to minimize.
[2026-05-25 10:11:15] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 305 ms
[2026-05-25 10:11:15] [INFO ] Added : 6 causal constraints over 3 iterations in 622 ms. Result :sat
Minimization took 269 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:11:15] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:11:15] [INFO ] [Real]Absence check using state equation in 140 ms returned sat
[2026-05-25 10:11:15] [INFO ] [Real]Added 86 Read/Feed constraints in 33 ms returned sat
[2026-05-25 10:11:15] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:11:15] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 10:11:15] [INFO ] [Nat]Absence check using state equation in 135 ms returned sat
[2026-05-25 10:11:15] [INFO ] [Nat]Added 86 Read/Feed constraints in 33 ms returned sat
[2026-05-25 10:11:15] [INFO ] Computed and/alt/rep : 351/2346/345 causal constraints (skipped 389 transitions) in 72 ms.
[2026-05-25 10:11:16] [INFO ] Added : 26 causal constraints over 8 iterations in 458 ms. Result :sat
Minimization took 335 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:11:16] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 10:11:16] [INFO ] [Real]Absence check using state equation in 144 ms returned sat
[2026-05-25 10:11:16] [INFO ] [Real]Added 86 Read/Feed constraints in 35 ms returned sat
[2026-05-25 10:11:17] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:11:17] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:11:17] [INFO ] [Nat]Absence check using state equation in 132 ms returned sat
[2026-05-25 10:11:17] [INFO ] [Nat]Added 86 Read/Feed constraints in 26 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:11:17] [INFO ] Deduced a trap composed of 74 places in 234 ms of which 36 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:11:17] [INFO ] Deduced a trap composed of 80 places in 230 ms of which 44 ms to minimize.
[2026-05-25 10:11:17] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 537 ms
[2026-05-25 10:11:17] [INFO ] Computed and/alt/rep : 351/2346/345 causal constraints (skipped 389 transitions) in 70 ms.
[2026-05-25 10:11:18] [INFO ] Added : 40 causal constraints over 9 iterations in 427 ms. Result :sat
Minimization took 378 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:11:18] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:11:18] [INFO ] [Real]Absence check using state equation in 140 ms returned sat
[2026-05-25 10:11:18] [INFO ] [Real]Added 86 Read/Feed constraints in 32 ms returned sat
[2026-05-25 10:11:18] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:11:18] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 10:11:19] [INFO ] [Nat]Absence check using state equation in 134 ms returned sat
[2026-05-25 10:11:19] [INFO ] [Nat]Added 86 Read/Feed constraints in 29 ms returned sat
[2026-05-25 10:11:19] [INFO ] Computed and/alt/rep : 351/2346/345 causal constraints (skipped 389 transitions) in 76 ms.
[2026-05-25 10:11:19] [INFO ] Added : 10 causal constraints over 4 iterations in 407 ms. Result :sat
Minimization took 344 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:11:19] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:11:20] [INFO ] [Real]Absence check using state equation in 147 ms returned sat
[2026-05-25 10:11:20] [INFO ] [Real]Added 86 Read/Feed constraints in 26 ms returned sat
[2026-05-25 10:11:20] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:11:20] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:11:20] [INFO ] [Nat]Absence check using state equation in 141 ms returned sat
[2026-05-25 10:11:20] [INFO ] [Nat]Added 86 Read/Feed constraints in 23 ms returned sat
[2026-05-25 10:11:20] [INFO ] Computed and/alt/rep : 351/2346/345 causal constraints (skipped 389 transitions) in 70 ms.
[2026-05-25 10:11:20] [INFO ] Added : 15 causal constraints over 4 iterations in 353 ms. Result :sat
Minimization took 266 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[11, 142, 238, 249, 123] Max Struct:[+inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[11, 142, 238, 249, 123] Max Struct:[+inf, +inf, +inf, +inf, +inf]
Support contains 5 out of 450 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 450/450 places, 1286/1286 transitions.
Applied a total of 0 rules in 53 ms. Remains 450 /450 variables (removed 0) and now considering 1286/1286 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 53 ms. Remains : 450/450 places, 1286/1286 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 450/450 places, 1286/1286 transitions.
Applied a total of 0 rules in 53 ms. Remains 450 /450 variables (removed 0) and now considering 1286/1286 (removed 0) transitions.
[2026-05-25 10:11:26] [INFO ] Flow matrix only has 736 transitions (discarded 550 similar events)
[2026-05-25 10:11:26] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 10:11:26] [INFO ] Implicit Places using invariants in 310 ms returned []
[2026-05-25 10:11:26] [INFO ] Flow matrix only has 736 transitions (discarded 550 similar events)
[2026-05-25 10:11:26] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 10:11:26] [INFO ] State equation strengthened by 86 read => feed constraints.
[2026-05-25 10:11:30] [INFO ] Implicit Places using invariants and state equation in 3861 ms returned []
Implicit Place search using SMT with State Equation took 4173 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-25 10:11:30] [INFO ] Redundant transitions in 27 ms returned []
Running 1284 sub problems to find dead transitions.
[2026-05-25 10:11:30] [INFO ] Flow matrix only has 736 transitions (discarded 550 similar events)
[2026-05-25 10:11:30] [INFO ] Invariant cache hit.
[2026-05-25 10:11:30] [INFO ] State equation strengthened by 86 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/450 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1284 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:11:41] [INFO ] Deduced a trap composed of 131 places in 154 ms of which 7 ms to minimize.
At refinement iteration 1 (INCLUDED_ONLY) 0/450 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1284 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 450/1186 variables, and 4 constraints, problems are : Problem set: 0 solved, 1284 unsolved in 30023 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/450 constraints, ReadFeed: 0/86 constraints, PredecessorRefiner: 1284/1284 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1284 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/450 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1284 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/450 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1284 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/450 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1284 unsolved
At refinement iteration 3 (OVERLAPS) 736/1186 variables, 450/454 constraints. Problems are: Problem set: 0 solved, 1284 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1186 variables, 86/540 constraints. Problems are: Problem set: 0 solved, 1284 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1186/1186 variables, and 1824 constraints, problems are : Problem set: 0 solved, 1284 unsolved in 30856 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 450/450 constraints, ReadFeed: 86/86 constraints, PredecessorRefiner: 1284/1284 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 62651ms problems are : Problem set: 0 solved, 1284 unsolved
Search for dead transitions found 0 dead transitions in 62656ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 66919 ms. Remains : 450/450 places, 1286/1286 transitions.
[2026-05-25 10:12:32] [INFO ] Flow matrix only has 736 transitions (discarded 550 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {228=1, 347=1, 548=1, 725=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 4 ms.
This minimized invariant on transitions {246=1, 365=1, 694=1, 734=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 68 ms. (steps per millisecond=147 ) properties (out of 5) seen :[2, 0, 1, 2, 0]
Current structural bounds on expressions (after cover walk) : Max Seen:[11, 142, 238, 249, 123] Max Struct:[+inf, +inf, +inf, +inf, +inf]
[2026-05-25 10:12:33] [INFO ] Flow matrix only has 736 transitions (discarded 550 similar events)
[2026-05-25 10:12:33] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[11, 142, 238, 249, 123] Max Struct:[+inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000008 steps (2 resets) in 2894 ms. (345 steps per ms)
BEST_FIRST walk for 5000005 steps (10 resets) in 3561 ms. (1403 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[170, 142, 238, 249, 123] Max Struct:[+inf, +inf, +inf, +inf, +inf]
[2026-05-25 10:12:39] [INFO ] Flow matrix only has 736 transitions (discarded 550 similar events)
[2026-05-25 10:12:39] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:12:39] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 10:12:39] [INFO ] [Real]Absence check using state equation in 151 ms returned sat
[2026-05-25 10:12:39] [INFO ] State equation strengthened by 86 read => feed constraints.
[2026-05-25 10:12:40] [INFO ] [Real]Added 86 Read/Feed constraints in 26 ms returned sat
[2026-05-25 10:12:40] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:12:40] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:12:40] [INFO ] [Nat]Absence check using state equation in 141 ms returned sat
[2026-05-25 10:12:40] [INFO ] [Nat]Added 86 Read/Feed constraints in 23 ms returned sat
[2026-05-25 10:12:40] [INFO ] Computed and/alt/rep : 351/2346/345 causal constraints (skipped 389 transitions) in 69 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:12:40] [INFO ] Deduced a trap composed of 74 places in 249 ms of which 39 ms to minimize.
[2026-05-25 10:12:40] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 311 ms
[2026-05-25 10:12:40] [INFO ] Added : 6 causal constraints over 3 iterations in 594 ms. Result :sat
Minimization took 263 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:12:41] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 10:12:41] [INFO ] [Real]Absence check using state equation in 137 ms returned sat
[2026-05-25 10:12:41] [INFO ] [Real]Added 86 Read/Feed constraints in 34 ms returned sat
[2026-05-25 10:12:41] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:12:41] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 10:12:41] [INFO ] [Nat]Absence check using state equation in 134 ms returned sat
[2026-05-25 10:12:41] [INFO ] [Nat]Added 86 Read/Feed constraints in 27 ms returned sat
[2026-05-25 10:12:41] [INFO ] Computed and/alt/rep : 351/2346/345 causal constraints (skipped 389 transitions) in 69 ms.
[2026-05-25 10:12:42] [INFO ] Added : 26 causal constraints over 8 iterations in 420 ms. Result :sat
Minimization took 338 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:12:42] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:12:42] [INFO ] [Real]Absence check using state equation in 136 ms returned sat
[2026-05-25 10:12:42] [INFO ] [Real]Added 86 Read/Feed constraints in 38 ms returned sat
[2026-05-25 10:12:42] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:12:42] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 10:12:42] [INFO ] [Nat]Absence check using state equation in 135 ms returned sat
[2026-05-25 10:12:42] [INFO ] [Nat]Added 86 Read/Feed constraints in 27 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:12:43] [INFO ] Deduced a trap composed of 74 places in 265 ms of which 38 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:12:43] [INFO ] Deduced a trap composed of 80 places in 261 ms of which 43 ms to minimize.
[2026-05-25 10:12:43] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 621 ms
[2026-05-25 10:12:43] [INFO ] Computed and/alt/rep : 351/2346/345 causal constraints (skipped 389 transitions) in 69 ms.
[2026-05-25 10:12:44] [INFO ] Added : 40 causal constraints over 9 iterations in 407 ms. Result :sat
Minimization took 395 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:12:44] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 10:12:44] [INFO ] [Real]Absence check using state equation in 139 ms returned sat
[2026-05-25 10:12:44] [INFO ] [Real]Added 86 Read/Feed constraints in 31 ms returned sat
[2026-05-25 10:12:44] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:12:44] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:12:44] [INFO ] [Nat]Absence check using state equation in 133 ms returned sat
[2026-05-25 10:12:44] [INFO ] [Nat]Added 86 Read/Feed constraints in 29 ms returned sat
[2026-05-25 10:12:45] [INFO ] Computed and/alt/rep : 351/2346/345 causal constraints (skipped 389 transitions) in 69 ms.
[2026-05-25 10:12:45] [INFO ] Added : 10 causal constraints over 4 iterations in 444 ms. Result :sat
Minimization took 349 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:12:45] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:12:45] [INFO ] [Real]Absence check using state equation in 138 ms returned sat
[2026-05-25 10:12:46] [INFO ] [Real]Added 86 Read/Feed constraints in 24 ms returned sat
[2026-05-25 10:12:46] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:12:46] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 10:12:46] [INFO ] [Nat]Absence check using state equation in 140 ms returned sat
[2026-05-25 10:12:46] [INFO ] [Nat]Added 86 Read/Feed constraints in 22 ms returned sat
[2026-05-25 10:12:46] [INFO ] Computed and/alt/rep : 351/2346/345 causal constraints (skipped 389 transitions) in 72 ms.
[2026-05-25 10:12:46] [INFO ] Added : 15 causal constraints over 4 iterations in 363 ms. Result :sat
Minimization took 268 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[170, 142, 238, 249, 123] Max Struct:[+inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[170, 142, 238, 249, 123] Max Struct:[+inf, +inf, +inf, +inf, +inf]
Support contains 5 out of 450 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 450/450 places, 1286/1286 transitions.
Applied a total of 0 rules in 54 ms. Remains 450 /450 variables (removed 0) and now considering 1286/1286 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 54 ms. Remains : 450/450 places, 1286/1286 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 450/450 places, 1286/1286 transitions.
Applied a total of 0 rules in 53 ms. Remains 450 /450 variables (removed 0) and now considering 1286/1286 (removed 0) transitions.
[2026-05-25 10:12:52] [INFO ] Flow matrix only has 736 transitions (discarded 550 similar events)
[2026-05-25 10:12:52] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 10:12:52] [INFO ] Implicit Places using invariants in 319 ms returned []
[2026-05-25 10:12:52] [INFO ] Flow matrix only has 736 transitions (discarded 550 similar events)
[2026-05-25 10:12:52] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 10:12:52] [INFO ] State equation strengthened by 86 read => feed constraints.
[2026-05-25 10:12:56] [INFO ] Implicit Places using invariants and state equation in 3904 ms returned []
Implicit Place search using SMT with State Equation took 4239 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-25 10:12:56] [INFO ] Redundant transitions in 24 ms returned []
Running 1284 sub problems to find dead transitions.
[2026-05-25 10:12:56] [INFO ] Flow matrix only has 736 transitions (discarded 550 similar events)
[2026-05-25 10:12:56] [INFO ] Invariant cache hit.
[2026-05-25 10:12:56] [INFO ] State equation strengthened by 86 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/450 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1284 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:13:07] [INFO ] Deduced a trap composed of 131 places in 138 ms of which 6 ms to minimize.
At refinement iteration 1 (INCLUDED_ONLY) 0/450 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1284 unsolved
Error getting values : (error "ParserException while parsing response: (timeout
org.smtlib.IParser$ParserException: Unbalanced parentheses at end of input")
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 450/1186 variables, and 4 constraints, problems are : Problem set: 0 solved, 1284 unsolved in 30023 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/450 constraints, ReadFeed: 0/86 constraints, PredecessorRefiner: 1284/1284 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1284 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/450 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1284 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/450 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1284 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/450 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1284 unsolved
At refinement iteration 3 (OVERLAPS) 736/1186 variables, 450/454 constraints. Problems are: Problem set: 0 solved, 1284 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1186 variables, 86/540 constraints. Problems are: Problem set: 0 solved, 1284 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1186/1186 variables, and 1824 constraints, problems are : Problem set: 0 solved, 1284 unsolved in 30856 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 450/450 constraints, ReadFeed: 86/86 constraints, PredecessorRefiner: 1284/1284 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 62639ms problems are : Problem set: 0 solved, 1284 unsolved
Search for dead transitions found 0 dead transitions in 62641ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 66964 ms. Remains : 450/450 places, 1286/1286 transitions.
[2026-05-25 10:13:59] [INFO ] Flow matrix only has 736 transitions (discarded 550 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {228=1, 347=1, 548=1, 725=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {246=1, 365=1, 694=1, 734=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 53 ms. (steps per millisecond=188 ) properties (out of 5) seen :[0, 2, 2, 0, 0]
Current structural bounds on expressions (after cover walk) : Max Seen:[170, 142, 238, 249, 123] Max Struct:[+inf, +inf, +inf, +inf, +inf]
[2026-05-25 10:13:59] [INFO ] Flow matrix only has 736 transitions (discarded 550 similar events)
[2026-05-25 10:13:59] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[170, 142, 238, 249, 123] Max Struct:[+inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 2827 ms. (353 steps per ms)
BEST_FIRST walk for 5000005 steps (10 resets) in 3601 ms. (1388 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[305, 142, 238, 249, 169] Max Struct:[+inf, +inf, +inf, +inf, +inf]
[2026-05-25 10:14:06] [INFO ] Flow matrix only has 736 transitions (discarded 550 similar events)
[2026-05-25 10:14:06] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:14:06] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:14:06] [INFO ] [Real]Absence check using state equation in 135 ms returned sat
[2026-05-25 10:14:06] [INFO ] State equation strengthened by 86 read => feed constraints.
[2026-05-25 10:14:06] [INFO ] [Real]Added 86 Read/Feed constraints in 25 ms returned sat
[2026-05-25 10:14:06] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:14:06] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 10:14:06] [INFO ] [Nat]Absence check using state equation in 139 ms returned sat
[2026-05-25 10:14:06] [INFO ] [Nat]Added 86 Read/Feed constraints in 22 ms returned sat
[2026-05-25 10:14:06] [INFO ] Computed and/alt/rep : 351/2346/345 causal constraints (skipped 389 transitions) in 67 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:14:07] [INFO ] Deduced a trap composed of 74 places in 250 ms of which 39 ms to minimize.
[2026-05-25 10:14:07] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 313 ms
[2026-05-25 10:14:07] [INFO ] Added : 6 causal constraints over 3 iterations in 603 ms. Result :sat
Minimization took 261 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:14:07] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:14:07] [INFO ] [Real]Absence check using state equation in 135 ms returned sat
[2026-05-25 10:14:07] [INFO ] [Real]Added 86 Read/Feed constraints in 32 ms returned sat
[2026-05-25 10:14:07] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:14:07] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 10:14:07] [INFO ] [Nat]Absence check using state equation in 128 ms returned sat
[2026-05-25 10:14:08] [INFO ] [Nat]Added 86 Read/Feed constraints in 39 ms returned sat
[2026-05-25 10:14:08] [INFO ] Computed and/alt/rep : 351/2346/345 causal constraints (skipped 389 transitions) in 70 ms.
[2026-05-25 10:14:08] [INFO ] Added : 26 causal constraints over 8 iterations in 444 ms. Result :sat
Minimization took 331 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:14:08] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 10:14:09] [INFO ] [Real]Absence check using state equation in 146 ms returned sat
[2026-05-25 10:14:09] [INFO ] [Real]Added 86 Read/Feed constraints in 37 ms returned sat
[2026-05-25 10:14:09] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:14:09] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:14:09] [INFO ] [Nat]Absence check using state equation in 131 ms returned sat
[2026-05-25 10:14:09] [INFO ] [Nat]Added 86 Read/Feed constraints in 25 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:14:09] [INFO ] Deduced a trap composed of 74 places in 229 ms of which 35 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:14:09] [INFO ] Deduced a trap composed of 80 places in 225 ms of which 43 ms to minimize.
[2026-05-25 10:14:09] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 533 ms
[2026-05-25 10:14:09] [INFO ] Computed and/alt/rep : 351/2346/345 causal constraints (skipped 389 transitions) in 69 ms.
[2026-05-25 10:14:10] [INFO ] Added : 40 causal constraints over 9 iterations in 432 ms. Result :sat
Minimization took 372 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:14:10] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:14:10] [INFO ] [Real]Absence check using state equation in 132 ms returned sat
[2026-05-25 10:14:10] [INFO ] [Real]Added 86 Read/Feed constraints in 29 ms returned sat
[2026-05-25 10:14:10] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:14:11] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:14:11] [INFO ] [Nat]Absence check using state equation in 133 ms returned sat
[2026-05-25 10:14:11] [INFO ] [Nat]Added 86 Read/Feed constraints in 29 ms returned sat
[2026-05-25 10:14:11] [INFO ] Computed and/alt/rep : 351/2346/345 causal constraints (skipped 389 transitions) in 72 ms.
[2026-05-25 10:14:11] [INFO ] Added : 10 causal constraints over 4 iterations in 401 ms. Result :sat
Minimization took 341 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:14:12] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 10:14:12] [INFO ] [Real]Absence check using state equation in 152 ms returned sat
[2026-05-25 10:14:12] [INFO ] [Real]Added 86 Read/Feed constraints in 24 ms returned sat
[2026-05-25 10:14:12] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:14:12] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:14:12] [INFO ] [Nat]Absence check using state equation in 138 ms returned sat
[2026-05-25 10:14:12] [INFO ] [Nat]Added 86 Read/Feed constraints in 27 ms returned sat
[2026-05-25 10:14:12] [INFO ] Computed and/alt/rep : 351/2346/345 causal constraints (skipped 389 transitions) in 68 ms.
[2026-05-25 10:14:12] [INFO ] Added : 15 causal constraints over 4 iterations in 349 ms. Result :sat
Minimization took 263 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[305, 142, 238, 249, 169] Max Struct:[+inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[305, 142, 238, 249, 169] Max Struct:[+inf, +inf, +inf, +inf, +inf]
Support contains 5 out of 450 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 450/450 places, 1286/1286 transitions.
Applied a total of 0 rules in 52 ms. Remains 450 /450 variables (removed 0) and now considering 1286/1286 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 52 ms. Remains : 450/450 places, 1286/1286 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 450/450 places, 1286/1286 transitions.
Applied a total of 0 rules in 52 ms. Remains 450 /450 variables (removed 0) and now considering 1286/1286 (removed 0) transitions.
[2026-05-25 10:14:19] [INFO ] Flow matrix only has 736 transitions (discarded 550 similar events)
[2026-05-25 10:14:19] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 10:14:19] [INFO ] Implicit Places using invariants in 311 ms returned []
[2026-05-25 10:14:19] [INFO ] Flow matrix only has 736 transitions (discarded 550 similar events)
[2026-05-25 10:14:19] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 10:14:19] [INFO ] State equation strengthened by 86 read => feed constraints.
[2026-05-25 10:14:23] [INFO ] Implicit Places using invariants and state equation in 3850 ms returned []
Implicit Place search using SMT with State Equation took 4167 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-25 10:14:23] [INFO ] Redundant transitions in 31 ms returned []
Running 1284 sub problems to find dead transitions.
[2026-05-25 10:14:23] [INFO ] Flow matrix only has 736 transitions (discarded 550 similar events)
[2026-05-25 10:14:23] [INFO ] Invariant cache hit.
[2026-05-25 10:14:23] [INFO ] State equation strengthened by 86 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/450 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1284 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:14:34] [INFO ] Deduced a trap composed of 131 places in 148 ms of which 6 ms to minimize.
At refinement iteration 1 (INCLUDED_ONLY) 0/450 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1284 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 450/1186 variables, and 4 constraints, problems are : Problem set: 0 solved, 1284 unsolved in 30024 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/450 constraints, ReadFeed: 0/86 constraints, PredecessorRefiner: 1284/1284 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1284 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/450 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1284 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/450 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1284 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/450 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1284 unsolved
At refinement iteration 3 (OVERLAPS) 736/1186 variables, 450/454 constraints. Problems are: Problem set: 0 solved, 1284 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1186 variables, 86/540 constraints. Problems are: Problem set: 0 solved, 1284 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1186/1186 variables, and 1824 constraints, problems are : Problem set: 0 solved, 1284 unsolved in 30875 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 450/450 constraints, ReadFeed: 86/86 constraints, PredecessorRefiner: 1284/1284 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 62842ms problems are : Problem set: 0 solved, 1284 unsolved
Search for dead transitions found 0 dead transitions in 62844ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 67105 ms. Remains : 450/450 places, 1286/1286 transitions.
[2026-05-25 10:15:26] [INFO ] Flow matrix only has 736 transitions (discarded 550 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {228=1, 347=1, 548=1, 725=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {246=1, 365=1, 694=1, 734=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 69 ms. (steps per millisecond=144 ) properties (out of 5) seen :[0, 0, 3, 0, 0]
Current structural bounds on expressions (after cover walk) : Max Seen:[305, 142, 238, 249, 169] Max Struct:[+inf, +inf, +inf, +inf, +inf]
[2026-05-25 10:15:26] [INFO ] Flow matrix only has 736 transitions (discarded 550 similar events)
[2026-05-25 10:15:26] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[305, 142, 238, 249, 169] Max Struct:[+inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 2894 ms. (345 steps per ms)
BEST_FIRST walk for 5000005 steps (10 resets) in 3616 ms. (1382 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[305, 142, 239, 249, 437] Max Struct:[+inf, +inf, +inf, +inf, +inf]
[2026-05-25 10:15:33] [INFO ] Flow matrix only has 736 transitions (discarded 550 similar events)
[2026-05-25 10:15:33] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:15:33] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:15:33] [INFO ] [Real]Absence check using state equation in 136 ms returned sat
[2026-05-25 10:15:33] [INFO ] State equation strengthened by 86 read => feed constraints.
[2026-05-25 10:15:33] [INFO ] [Real]Added 86 Read/Feed constraints in 27 ms returned sat
[2026-05-25 10:15:33] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:15:33] [INFO ] [Nat]Absence check using 3 positive place invariants in 6 ms returned sat
[2026-05-25 10:15:33] [INFO ] [Nat]Absence check using state equation in 146 ms returned sat
[2026-05-25 10:15:33] [INFO ] [Nat]Added 86 Read/Feed constraints in 27 ms returned sat
[2026-05-25 10:15:33] [INFO ] Computed and/alt/rep : 351/2346/345 causal constraints (skipped 389 transitions) in 93 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:15:34] [INFO ] Deduced a trap composed of 74 places in 238 ms of which 39 ms to minimize.
[2026-05-25 10:15:34] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 304 ms
[2026-05-25 10:15:34] [INFO ] Added : 6 causal constraints over 3 iterations in 601 ms. Result :sat
Minimization took 258 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:15:34] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 10:15:34] [INFO ] [Real]Absence check using state equation in 138 ms returned sat
[2026-05-25 10:15:34] [INFO ] [Real]Added 86 Read/Feed constraints in 47 ms returned sat
[2026-05-25 10:15:34] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:15:34] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 10:15:35] [INFO ] [Nat]Absence check using state equation in 152 ms returned sat
[2026-05-25 10:15:35] [INFO ] [Nat]Added 86 Read/Feed constraints in 28 ms returned sat
[2026-05-25 10:15:35] [INFO ] Computed and/alt/rep : 351/2346/345 causal constraints (skipped 389 transitions) in 88 ms.
[2026-05-25 10:15:35] [INFO ] Added : 26 causal constraints over 8 iterations in 458 ms. Result :sat
Minimization took 324 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:15:36] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 10:15:36] [INFO ] [Real]Absence check using state equation in 134 ms returned sat
[2026-05-25 10:15:36] [INFO ] [Real]Added 86 Read/Feed constraints in 35 ms returned sat
[2026-05-25 10:15:36] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:15:36] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 10:15:36] [INFO ] [Nat]Absence check using state equation in 147 ms returned sat
[2026-05-25 10:15:36] [INFO ] [Nat]Added 86 Read/Feed constraints in 31 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:15:36] [INFO ] Deduced a trap composed of 74 places in 235 ms of which 36 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:15:36] [INFO ] Deduced a trap composed of 80 places in 226 ms of which 44 ms to minimize.
[2026-05-25 10:15:37] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 539 ms
[2026-05-25 10:15:37] [INFO ] Computed and/alt/rep : 351/2346/345 causal constraints (skipped 389 transitions) in 88 ms.
[2026-05-25 10:15:37] [INFO ] Added : 40 causal constraints over 9 iterations in 442 ms. Result :sat
Minimization took 376 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:15:37] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:15:38] [INFO ] [Real]Absence check using state equation in 146 ms returned sat
[2026-05-25 10:15:38] [INFO ] [Real]Added 86 Read/Feed constraints in 32 ms returned sat
[2026-05-25 10:15:38] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:15:38] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:15:38] [INFO ] [Nat]Absence check using state equation in 148 ms returned sat
[2026-05-25 10:15:38] [INFO ] [Nat]Added 86 Read/Feed constraints in 30 ms returned sat
[2026-05-25 10:15:38] [INFO ] Computed and/alt/rep : 351/2346/345 causal constraints (skipped 389 transitions) in 101 ms.
[2026-05-25 10:15:38] [INFO ] Added : 10 causal constraints over 4 iterations in 443 ms. Result :sat
Minimization took 343 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:15:39] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:15:39] [INFO ] [Real]Absence check using state equation in 143 ms returned sat
[2026-05-25 10:15:39] [INFO ] [Real]Added 86 Read/Feed constraints in 24 ms returned sat
[2026-05-25 10:15:39] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:15:39] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 10:15:39] [INFO ] [Nat]Absence check using state equation in 138 ms returned sat
[2026-05-25 10:15:39] [INFO ] [Nat]Added 86 Read/Feed constraints in 23 ms returned sat
[2026-05-25 10:15:39] [INFO ] Computed and/alt/rep : 351/2346/345 causal constraints (skipped 389 transitions) in 91 ms.
[2026-05-25 10:15:40] [INFO ] Added : 15 causal constraints over 4 iterations in 374 ms. Result :sat
Minimization took 270 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[305, 142, 239, 249, 437] Max Struct:[+inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[305, 142, 239, 249, 437] Max Struct:[+inf, +inf, +inf, +inf, +inf]
Support contains 5 out of 450 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 450/450 places, 1286/1286 transitions.
Applied a total of 0 rules in 58 ms. Remains 450 /450 variables (removed 0) and now considering 1286/1286 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 58 ms. Remains : 450/450 places, 1286/1286 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 450/450 places, 1286/1286 transitions.
Applied a total of 0 rules in 54 ms. Remains 450 /450 variables (removed 0) and now considering 1286/1286 (removed 0) transitions.
[2026-05-25 10:15:48] [INFO ] Flow matrix only has 736 transitions (discarded 550 similar events)
[2026-05-25 10:15:48] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 10:15:48] [INFO ] Implicit Places using invariants in 326 ms returned []
[2026-05-25 10:15:48] [INFO ] Flow matrix only has 736 transitions (discarded 550 similar events)
[2026-05-25 10:15:48] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 10:15:49] [INFO ] State equation strengthened by 86 read => feed constraints.
[2026-05-25 10:15:52] [INFO ] Implicit Places using invariants and state equation in 3867 ms returned []
Implicit Place search using SMT with State Equation took 4195 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-25 10:15:52] [INFO ] Redundant transitions in 31 ms returned []
Running 1284 sub problems to find dead transitions.
[2026-05-25 10:15:52] [INFO ] Flow matrix only has 736 transitions (discarded 550 similar events)
[2026-05-25 10:15:52] [INFO ] Invariant cache hit.
[2026-05-25 10:15:52] [INFO ] State equation strengthened by 86 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/450 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1284 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:16:03] [INFO ] Deduced a trap composed of 131 places in 144 ms of which 6 ms to minimize.
At refinement iteration 1 (INCLUDED_ONLY) 0/450 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1284 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 450/1186 variables, and 4 constraints, problems are : Problem set: 0 solved, 1284 unsolved in 30020 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/450 constraints, ReadFeed: 0/86 constraints, PredecessorRefiner: 1284/1284 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1284 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/450 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1284 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/450 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1284 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/450 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1284 unsolved
At refinement iteration 3 (OVERLAPS) 736/1186 variables, 450/454 constraints. Problems are: Problem set: 0 solved, 1284 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1186 variables, 86/540 constraints. Problems are: Problem set: 0 solved, 1284 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1186/1186 variables, and 1824 constraints, problems are : Problem set: 0 solved, 1284 unsolved in 31017 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 450/450 constraints, ReadFeed: 86/86 constraints, PredecessorRefiner: 1284/1284 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 63084ms problems are : Problem set: 0 solved, 1284 unsolved
Search for dead transitions found 0 dead transitions in 63086ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 67378 ms. Remains : 450/450 places, 1286/1286 transitions.
[2026-05-25 10:16:55] [INFO ] Flow matrix only has 736 transitions (discarded 550 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {228=1, 347=1, 548=1, 725=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {246=1, 365=1, 694=1, 734=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 54 ms. (steps per millisecond=185 ) properties (out of 5) seen :[0, 0, 1, 0, 0]
Current structural bounds on expressions (after cover walk) : Max Seen:[305, 142, 239, 249, 437] Max Struct:[+inf, +inf, +inf, +inf, +inf]
[2026-05-25 10:16:56] [INFO ] Flow matrix only has 736 transitions (discarded 550 similar events)
[2026-05-25 10:16:56] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[305, 142, 239, 249, 437] Max Struct:[+inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 2777 ms. (359 steps per ms)
BEST_FIRST walk for 5000005 steps (10 resets) in 3622 ms. (1380 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[305, 142, 239, 249, 437] Max Struct:[+inf, +inf, +inf, +inf, +inf]
[2026-05-25 10:17:02] [INFO ] Flow matrix only has 736 transitions (discarded 550 similar events)
[2026-05-25 10:17:02] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:17:02] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 10:17:02] [INFO ] [Real]Absence check using state equation in 131 ms returned sat
[2026-05-25 10:17:02] [INFO ] State equation strengthened by 86 read => feed constraints.
[2026-05-25 10:17:02] [INFO ] [Real]Added 86 Read/Feed constraints in 26 ms returned sat
[2026-05-25 10:17:03] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:17:03] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:17:03] [INFO ] [Nat]Absence check using state equation in 150 ms returned sat
[2026-05-25 10:17:03] [INFO ] [Nat]Added 86 Read/Feed constraints in 24 ms returned sat
[2026-05-25 10:17:03] [INFO ] Computed and/alt/rep : 351/2346/345 causal constraints (skipped 389 transitions) in 89 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:17:03] [INFO ] Deduced a trap composed of 74 places in 236 ms of which 39 ms to minimize.
[2026-05-25 10:17:03] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 307 ms
[2026-05-25 10:17:03] [INFO ] Added : 6 causal constraints over 3 iterations in 621 ms. Result :sat
Minimization took 267 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:17:04] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:17:04] [INFO ] [Real]Absence check using state equation in 134 ms returned sat
[2026-05-25 10:17:04] [INFO ] [Real]Added 86 Read/Feed constraints in 35 ms returned sat
[2026-05-25 10:17:04] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:17:04] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:17:04] [INFO ] [Nat]Absence check using state equation in 133 ms returned sat
[2026-05-25 10:17:04] [INFO ] [Nat]Added 86 Read/Feed constraints in 27 ms returned sat
[2026-05-25 10:17:04] [INFO ] Computed and/alt/rep : 351/2346/345 causal constraints (skipped 389 transitions) in 68 ms.
[2026-05-25 10:17:05] [INFO ] Added : 26 causal constraints over 8 iterations in 441 ms. Result :sat
Minimization took 329 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:17:05] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 10:17:05] [INFO ] [Real]Absence check using state equation in 134 ms returned sat
[2026-05-25 10:17:05] [INFO ] [Real]Added 86 Read/Feed constraints in 36 ms returned sat
[2026-05-25 10:17:05] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:17:05] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:17:05] [INFO ] [Nat]Absence check using state equation in 133 ms returned sat
[2026-05-25 10:17:06] [INFO ] [Nat]Added 86 Read/Feed constraints in 27 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:17:06] [INFO ] Deduced a trap composed of 74 places in 260 ms of which 37 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:17:06] [INFO ] Deduced a trap composed of 80 places in 268 ms of which 45 ms to minimize.
[2026-05-25 10:17:06] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 632 ms
[2026-05-25 10:17:06] [INFO ] Computed and/alt/rep : 351/2346/345 causal constraints (skipped 389 transitions) in 72 ms.
[2026-05-25 10:17:07] [INFO ] Added : 40 causal constraints over 9 iterations in 418 ms. Result :sat
Minimization took 392 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:17:07] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 10:17:07] [INFO ] [Real]Absence check using state equation in 138 ms returned sat
[2026-05-25 10:17:07] [INFO ] [Real]Added 86 Read/Feed constraints in 32 ms returned sat
[2026-05-25 10:17:07] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:17:07] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 10:17:07] [INFO ] [Nat]Absence check using state equation in 140 ms returned sat
[2026-05-25 10:17:08] [INFO ] [Nat]Added 86 Read/Feed constraints in 29 ms returned sat
[2026-05-25 10:17:08] [INFO ] Computed and/alt/rep : 351/2346/345 causal constraints (skipped 389 transitions) in 77 ms.
[2026-05-25 10:17:08] [INFO ] Added : 10 causal constraints over 4 iterations in 432 ms. Result :sat
Minimization took 352 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:17:08] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:17:09] [INFO ] [Real]Absence check using state equation in 140 ms returned sat
[2026-05-25 10:17:09] [INFO ] [Real]Added 86 Read/Feed constraints in 24 ms returned sat
[2026-05-25 10:17:09] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:17:09] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:17:09] [INFO ] [Nat]Absence check using state equation in 141 ms returned sat
[2026-05-25 10:17:09] [INFO ] [Nat]Added 86 Read/Feed constraints in 23 ms returned sat
[2026-05-25 10:17:09] [INFO ] Computed and/alt/rep : 351/2346/345 causal constraints (skipped 389 transitions) in 69 ms.
[2026-05-25 10:17:09] [INFO ] Added : 15 causal constraints over 4 iterations in 349 ms. Result :sat
Minimization took 266 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[305, 142, 239, 249, 437] Max Struct:[+inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[305, 142, 239, 249, 437] Max Struct:[+inf, +inf, +inf, +inf, +inf]
Support contains 5 out of 450 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 450/450 places, 1286/1286 transitions.
Applied a total of 0 rules in 52 ms. Remains 450 /450 variables (removed 0) and now considering 1286/1286 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 52 ms. Remains : 450/450 places, 1286/1286 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 450/450 places, 1286/1286 transitions.
Applied a total of 0 rules in 51 ms. Remains 450 /450 variables (removed 0) and now considering 1286/1286 (removed 0) transitions.
[2026-05-25 10:17:17] [INFO ] Flow matrix only has 736 transitions (discarded 550 similar events)
[2026-05-25 10:17:17] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 10:17:17] [INFO ] Implicit Places using invariants in 336 ms returned []
[2026-05-25 10:17:17] [INFO ] Flow matrix only has 736 transitions (discarded 550 similar events)
[2026-05-25 10:17:17] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 10:17:17] [INFO ] State equation strengthened by 86 read => feed constraints.
[2026-05-25 10:17:21] [INFO ] Implicit Places using invariants and state equation in 3870 ms returned []
Implicit Place search using SMT with State Equation took 4207 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-25 10:17:21] [INFO ] Redundant transitions in 31 ms returned []
Running 1284 sub problems to find dead transitions.
[2026-05-25 10:17:21] [INFO ] Flow matrix only has 736 transitions (discarded 550 similar events)
[2026-05-25 10:17:21] [INFO ] Invariant cache hit.
[2026-05-25 10:17:21] [INFO ] State equation strengthened by 86 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/450 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1284 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:17:32] [INFO ] Deduced a trap composed of 131 places in 145 ms of which 6 ms to minimize.
At refinement iteration 1 (INCLUDED_ONLY) 0/450 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1284 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 450/1186 variables, and 4 constraints, problems are : Problem set: 0 solved, 1284 unsolved in 30033 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/450 constraints, ReadFeed: 0/86 constraints, PredecessorRefiner: 1284/1284 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1284 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/450 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1284 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/450 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1284 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/450 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1284 unsolved
At refinement iteration 3 (OVERLAPS) 736/1186 variables, 450/454 constraints. Problems are: Problem set: 0 solved, 1284 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1186 variables, 86/540 constraints. Problems are: Problem set: 0 solved, 1284 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1186/1186 variables, and 1824 constraints, problems are : Problem set: 0 solved, 1284 unsolved in 30867 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 450/450 constraints, ReadFeed: 86/86 constraints, PredecessorRefiner: 1284/1284 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 62738ms problems are : Problem set: 0 solved, 1284 unsolved
Search for dead transitions found 0 dead transitions in 62740ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 67036 ms. Remains : 450/450 places, 1286/1286 transitions.
[2026-05-25 10:18:24] [INFO ] Flow matrix only has 736 transitions (discarded 550 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {228=1, 347=1, 548=1, 725=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {246=1, 365=1, 694=1, 734=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 53 ms. (steps per millisecond=188 ) properties (out of 5) seen :[0, 2, 2, 2, 0]
Current structural bounds on expressions (after cover walk) : Max Seen:[305, 142, 239, 249, 437] Max Struct:[+inf, +inf, +inf, +inf, +inf]
RANDOM walk for 40008 steps (8 resets) in 927 ms. (43 steps per ms) remains 5/5 properties
BEST_FIRST walk for 40003 steps (8 resets) in 182 ms. (218 steps per ms) remains 5/5 properties
BEST_FIRST walk for 40004 steps (8 resets) in 127 ms. (312 steps per ms) remains 5/5 properties
BEST_FIRST walk for 40003 steps (8 resets) in 128 ms. (310 steps per ms) remains 5/5 properties
BEST_FIRST walk for 40004 steps (8 resets) in 121 ms. (327 steps per ms) remains 5/5 properties
BEST_FIRST walk for 40004 steps (8 resets) in 126 ms. (314 steps per ms) remains 5/5 properties
[2026-05-25 10:18:25] [INFO ] Flatten gal took : 181 ms
[2026-05-25 10:18:25] [INFO ] Flatten gal took : 116 ms
[2026-05-25 10:18:25] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality12592565772786398659.gal : 31 ms
[2026-05-25 10:18:25] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality12438439148376854683.prop : 0 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality12592565772786398659.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality12438439148376854683.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...330
Loading property file /tmp/ReachabilityCardinality12438439148376854683.prop.
SDD proceeding with computation,5 properties remain. new max is 4
SDD size :1 after 31
SDD proceeding with computation,5 properties remain. new max is 8
SDD size :31 after 1990
SDD proceeding with computation,5 properties remain. new max is 16
SDD size :1990 after 1.21705e+06
Interrupted probabilistic random walk after 213265 steps, run timeout after 3001 ms. (steps per millisecond=71 ) properties seen :0 out of 5
Probabilistic random walk after 213265 steps, saw 130787 distinct states, run finished after 3004 ms. (steps per millisecond=70 ) properties seen :0
[2026-05-25 10:18:28] [INFO ] Flow matrix only has 736 transitions (discarded 550 similar events)
[2026-05-25 10:18:28] [INFO ] Invariant cache hit.
[2026-05-25 10:18:28] [INFO ] State equation strengthened by 86 read => feed constraints.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/5 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 1 (OVERLAPS) 10/15 variables, 5/5 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/15 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 3 (OVERLAPS) 30/45 variables, 10/15 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/45 variables, 0/15 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 5 (OVERLAPS) 385/430 variables, 17/32 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/430 variables, 1/33 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/430 variables, 1/34 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/430 variables, 0/34 constraints. Problems are: Problem set: 0 solved, 5 unsolved
All remaining problems are real, not stopping.
At refinement iteration 9 (OVERLAPS) 11/441 variables, 1/35 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/441 variables, 1/36 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/441 variables, 0/36 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 12 (OVERLAPS) 619/1060 variables, 351/387 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/1060 variables, 85/472 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/1060 variables, 0/472 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 15 (OVERLAPS) 62/1122 variables, 1/473 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/1122 variables, 0/473 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 17 (OVERLAPS) 64/1186 variables, 66/539 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/1186 variables, 0/539 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 19 (OVERLAPS) 0/1186 variables, 0/539 constraints. Problems are: Problem set: 0 solved, 5 unsolved
No progress, stopping.
After SMT solving in domain Real declared 1186/1186 variables, and 539 constraints, problems are : Problem set: 0 solved, 5 unsolved in 707 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 450/450 constraints, ReadFeed: 86/86 constraints, PredecessorRefiner: 5/5 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 5 unsolved
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/5 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 1 (OVERLAPS) 10/15 variables, 5/5 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/15 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 3 (OVERLAPS) 30/45 variables, 10/15 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/45 variables, 0/15 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 5 (OVERLAPS) 385/430 variables, 17/32 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/430 variables, 1/33 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/430 variables, 1/34 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/430 variables, 5/39 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/430 variables, 0/39 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 10 (OVERLAPS) 11/441 variables, 1/40 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/441 variables, 1/41 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/441 variables, 0/41 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 13 (OVERLAPS) 619/1060 variables, 351/392 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/1060 variables, 85/477 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/1060 variables, 0/477 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 16 (OVERLAPS) 62/1122 variables, 1/478 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/1122 variables, 0/478 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 18 (OVERLAPS) 64/1186 variables, 66/544 constraints. Problems are: Problem set: 0 solved, 5 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:18:29] [INFO ] Deduced a trap along path composed of 3 places in 27 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:18:30] [INFO ] Deduced a trap along path composed of 3 places in 39 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:18:30] [INFO ] Deduced a trap along path composed of 3 places in 18 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:18:30] [INFO ] Deduced a trap along path composed of 3 places in 19 ms of which 1 ms to minimize.
At refinement iteration 19 (INCLUDED_ONLY) 0/1186 variables, 4/548 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/1186 variables, 0/548 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 21 (OVERLAPS) 0/1186 variables, 0/548 constraints. Problems are: Problem set: 0 solved, 5 unsolved
No progress, stopping.
After SMT solving in domain Int declared 1186/1186 variables, and 548 constraints, problems are : Problem set: 0 solved, 5 unsolved in 1697 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 450/450 constraints, ReadFeed: 86/86 constraints, PredecessorRefiner: 5/5 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 4/4 constraints]
After SMT, in 2414ms problems are : Problem set: 0 solved, 5 unsolved
Fused 5 Parikh solutions to 2 different solutions.
Parikh walk visited 0 properties in 1 ms.
Support contains 5 out of 450 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 450/450 places, 1286/1286 transitions.
Applied a total of 0 rules in 66 ms. Remains 450 /450 variables (removed 0) and now considering 1286/1286 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 66 ms. Remains : 450/450 places, 1286/1286 transitions.
RANDOM walk for 40007 steps (8 resets) in 297 ms. (134 steps per ms) remains 5/5 properties
BEST_FIRST walk for 40004 steps (8 resets) in 97 ms. (408 steps per ms) remains 5/5 properties
BEST_FIRST walk for 40004 steps (8 resets) in 113 ms. (350 steps per ms) remains 5/5 properties
BEST_FIRST walk for 40004 steps (8 resets) in 106 ms. (373 steps per ms) remains 5/5 properties
BEST_FIRST walk for 40003 steps (8 resets) in 104 ms. (380 steps per ms) remains 5/5 properties
BEST_FIRST walk for 40004 steps (8 resets) in 100 ms. (396 steps per ms) remains 5/5 properties
SDD proceeding with computation,5 properties remain. new max is 32
SDD size :1.21705e+06 after 2.58919e+10
Interrupted probabilistic random walk after 265021 steps, run timeout after 3001 ms. (steps per millisecond=88 ) properties seen :0 out of 5
Probabilistic random walk after 265021 steps, saw 162521 distinct states, run finished after 3001 ms. (steps per millisecond=88 ) properties seen :0
[2026-05-25 10:18:34] [INFO ] Flow matrix only has 736 transitions (discarded 550 similar events)
[2026-05-25 10:18:34] [INFO ] Invariant cache hit.
[2026-05-25 10:18:34] [INFO ] State equation strengthened by 86 read => feed constraints.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/5 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 1 (OVERLAPS) 10/15 variables, 5/5 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/15 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 3 (OVERLAPS) 30/45 variables, 10/15 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/45 variables, 0/15 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 5 (OVERLAPS) 385/430 variables, 17/32 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/430 variables, 1/33 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/430 variables, 1/34 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/430 variables, 0/34 constraints. Problems are: Problem set: 0 solved, 5 unsolved
All remaining problems are real, not stopping.
At refinement iteration 9 (OVERLAPS) 11/441 variables, 1/35 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/441 variables, 1/36 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/441 variables, 0/36 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 12 (OVERLAPS) 619/1060 variables, 351/387 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/1060 variables, 85/472 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/1060 variables, 0/472 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 15 (OVERLAPS) 62/1122 variables, 1/473 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/1122 variables, 0/473 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 17 (OVERLAPS) 64/1186 variables, 66/539 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/1186 variables, 0/539 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 19 (OVERLAPS) 0/1186 variables, 0/539 constraints. Problems are: Problem set: 0 solved, 5 unsolved
No progress, stopping.
After SMT solving in domain Real declared 1186/1186 variables, and 539 constraints, problems are : Problem set: 0 solved, 5 unsolved in 720 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 450/450 constraints, ReadFeed: 86/86 constraints, PredecessorRefiner: 5/5 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 5 unsolved
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/5 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 1 (OVERLAPS) 10/15 variables, 5/5 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/15 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 3 (OVERLAPS) 30/45 variables, 10/15 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/45 variables, 0/15 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 5 (OVERLAPS) 385/430 variables, 17/32 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/430 variables, 1/33 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/430 variables, 1/34 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/430 variables, 5/39 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/430 variables, 0/39 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 10 (OVERLAPS) 11/441 variables, 1/40 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/441 variables, 1/41 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/441 variables, 0/41 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 13 (OVERLAPS) 619/1060 variables, 351/392 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/1060 variables, 85/477 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/1060 variables, 0/477 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 16 (OVERLAPS) 62/1122 variables, 1/478 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/1122 variables, 0/478 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 18 (OVERLAPS) 64/1186 variables, 66/544 constraints. Problems are: Problem set: 0 solved, 5 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:18:35] [INFO ] Deduced a trap along path composed of 3 places in 31 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:18:35] [INFO ] Deduced a trap along path composed of 3 places in 29 ms of which 0 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:18:35] [INFO ] Deduced a trap along path composed of 3 places in 17 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:18:35] [INFO ] Deduced a trap along path composed of 3 places in 27 ms of which 1 ms to minimize.
At refinement iteration 19 (INCLUDED_ONLY) 0/1186 variables, 4/548 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/1186 variables, 0/548 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 21 (OVERLAPS) 0/1186 variables, 0/548 constraints. Problems are: Problem set: 0 solved, 5 unsolved
No progress, stopping.
After SMT solving in domain Int declared 1186/1186 variables, and 548 constraints, problems are : Problem set: 0 solved, 5 unsolved in 1642 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 450/450 constraints, ReadFeed: 86/86 constraints, PredecessorRefiner: 5/5 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 4/4 constraints]
After SMT, in 2379ms problems are : Problem set: 0 solved, 5 unsolved
Fused 5 Parikh solutions to 2 different solutions.
Parikh walk visited 0 properties in 1 ms.
Support contains 5 out of 450 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 450/450 places, 1286/1286 transitions.
Applied a total of 0 rules in 55 ms. Remains 450 /450 variables (removed 0) and now considering 1286/1286 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 55 ms. Remains : 450/450 places, 1286/1286 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 450/450 places, 1286/1286 transitions.
Applied a total of 0 rules in 70 ms. Remains 450 /450 variables (removed 0) and now considering 1286/1286 (removed 0) transitions.
[2026-05-25 10:18:36] [INFO ] Flow matrix only has 736 transitions (discarded 550 similar events)
[2026-05-25 10:18:36] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 10:18:36] [INFO ] Implicit Places using invariants in 346 ms returned []
[2026-05-25 10:18:36] [INFO ] Flow matrix only has 736 transitions (discarded 550 similar events)
[2026-05-25 10:18:36] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 10:18:37] [INFO ] State equation strengthened by 86 read => feed constraints.
[2026-05-25 10:18:40] [INFO ] Implicit Places using invariants and state equation in 3971 ms returned []
Implicit Place search using SMT with State Equation took 4320 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-25 10:18:41] [INFO ] Redundant transitions in 107 ms returned []
Running 1284 sub problems to find dead transitions.
[2026-05-25 10:18:41] [INFO ] Flow matrix only has 736 transitions (discarded 550 similar events)
[2026-05-25 10:18:41] [INFO ] Invariant cache hit.
[2026-05-25 10:18:41] [INFO ] State equation strengthened by 86 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
SDD proceeding with computation,5 properties remain. new max is 64
SDD size :2.58919e+10 after 5.07686e+13
At refinement iteration 0 (INCLUDED_ONLY) 0/450 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1284 unsolved
SDD proceeding with computation,5 properties remain. new max is 128
SDD size :5.07686e+13 after 2.794e+14
SDD proceeding with computation,5 properties remain. new max is 256
SDD size :2.794e+14 after 3.03248e+14
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:18:52] [INFO ] Deduced a trap composed of 131 places in 168 ms of which 6 ms to minimize.
SDD proceeding with computation,5 properties remain. new max is 512
SDD size :3.03248e+14 after 3.18831e+14
SDD proceeding with computation,5 properties remain. new max is 1024
SDD size :3.18831e+14 after 6.17259e+14
SDD proceeding with computation,5 properties remain. new max is 2048
SDD size :6.17259e+14 after 7.38781e+14
SDD proceeding with computation,5 properties remain. new max is 4096
SDD size :7.38781e+14 after 1.4698e+15
At refinement iteration 1 (INCLUDED_ONLY) 0/450 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1284 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 450/1186 variables, and 4 constraints, problems are : Problem set: 0 solved, 1284 unsolved in 30028 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/450 constraints, ReadFeed: 0/86 constraints, PredecessorRefiner: 1284/1284 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1284 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/450 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1284 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/450 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1284 unsolved
Detected timeout of ITS tools.
[2026-05-25 10:19:15] [INFO ] Flatten gal took : 54 ms
[2026-05-25 10:19:15] [INFO ] Applying decomposition
[2026-05-25 10:19:15] [INFO ] Flatten gal took : 46 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/graph6124429124139717540.txt' '-o' '/tmp/graph6124429124139717540.bin' '-w' '/tmp/graph6124429124139717540.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/louvain-linux64' '/tmp/graph6124429124139717540.bin' '-l' '-1' '-v' '-w' '/tmp/graph6124429124139717540.weights' '-q' '0' '-e' '0.001'
[2026-05-25 10:19:15] [INFO ] Decomposing Gal with order
[2026-05-25 10:19:15] [INFO ] Rewriting arrays to variables to allow decomposition.
[2026-05-25 10:19:16] [INFO ] Removed a total of 2215 redundant transitions.
[2026-05-25 10:19:16] [INFO ] Flatten gal took : 156 ms
[2026-05-25 10:19:16] [INFO ] Fuse similar labels procedure discarded/fused a total of 905 labels/synchronizations in 85 ms.
[2026-05-25 10:19:16] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality18224893634948412991.gal : 12 ms
[2026-05-25 10:19:16] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality17789412449714021785.prop : 0 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality18224893634948412991.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality17789412449714021785.prop' '--nowitness'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...309
Loading property file /tmp/ReachabilityCardinality17789412449714021785.prop.
At refinement iteration 2 (INCLUDED_ONLY) 0/450 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1284 unsolved
At refinement iteration 3 (OVERLAPS) 736/1186 variables, 450/454 constraints. Problems are: Problem set: 0 solved, 1284 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1186 variables, 86/540 constraints. Problems are: Problem set: 0 solved, 1284 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1186/1186 variables, and 1824 constraints, problems are : Problem set: 0 solved, 1284 unsolved in 30869 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 450/450 constraints, ReadFeed: 86/86 constraints, PredecessorRefiner: 1284/1284 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 63182ms problems are : Problem set: 0 solved, 1284 unsolved
Search for dead transitions found 0 dead transitions in 63187ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 67697 ms. Remains : 450/450 places, 1286/1286 transitions.
Attempting over-approximation, by ignoring read arcs.
Ensure Unique test removed 550 transitions
Reduce isomorphic transitions removed 550 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 7 transitions
Trivial Post-agglo rules discarded 7 transitions
Performed 7 trivial Post agglomeration. Transition count delta: 7
Iterating post reduction 0 with 557 rules applied. Total rules applied 557 place count 450 transition count 729
Reduce places removed 7 places and 0 transitions.
Iterating post reduction 1 with 7 rules applied. Total rules applied 564 place count 443 transition count 729
Performed 82 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 82 Pre rules applied. Total rules applied 564 place count 443 transition count 647
Deduced a syphon composed of 82 places in 1 ms
Reduce places removed 82 places and 0 transitions.
Iterating global reduction 2 with 164 rules applied. Total rules applied 728 place count 361 transition count 647
Performed 134 Post agglomeration using F-continuation condition.Transition count delta: 134
Deduced a syphon composed of 134 places in 1 ms
Reduce places removed 134 places and 0 transitions.
Iterating global reduction 2 with 268 rules applied. Total rules applied 996 place count 227 transition count 513
Discarding 64 places :
Symmetric choice reduction at 2 with 64 rule applications. Total rules 1060 place count 163 transition count 385
Iterating global reduction 2 with 64 rules applied. Total rules applied 1124 place count 163 transition count 385
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 2 with 1 rules applied. Total rules applied 1125 place count 163 transition count 384
Discarding 63 places :
Symmetric choice reduction at 3 with 63 rule applications. Total rules 1188 place count 100 transition count 258
Iterating global reduction 3 with 63 rules applied. Total rules applied 1251 place count 100 transition count 258
Discarding 63 places :
Symmetric choice reduction at 3 with 63 rule applications. Total rules 1314 place count 37 transition count 132
Iterating global reduction 3 with 63 rules applied. Total rules applied 1377 place count 37 transition count 132
Ensure Unique test removed 63 transitions
Reduce isomorphic transitions removed 63 transitions.
Iterating post reduction 3 with 63 rules applied. Total rules applied 1440 place count 37 transition count 69
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 4 with 1 Pre rules applied. Total rules applied 1440 place count 37 transition count 68
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 4 with 2 rules applied. Total rules applied 1442 place count 36 transition count 68
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 4 with 2 rules applied. Total rules applied 1444 place count 35 transition count 67
Performed 2 Post agglomeration using F-continuation condition.Transition count delta: 0
Deduced a syphon composed of 2 places in 0 ms
Reduce places removed 2 places and 0 transitions.
Iterating global reduction 4 with 4 rules applied. Total rules applied 1448 place count 33 transition count 67
Drop transitions (Redundant composition of simpler transitions.) removed 7 transitions
Redundant transition composition rules discarded 7 transitions
Iterating global reduction 4 with 7 rules applied. Total rules applied 1455 place count 33 transition count 60
Partial Free-agglomeration rule applied 1 times.
Drop transitions (Partial Free agglomeration) removed 1 transitions
Iterating global reduction 4 with 1 rules applied. Total rules applied 1456 place count 33 transition count 60
Applied a total of 1456 rules in 93 ms. Remains 33 /450 variables (removed 417) and now considering 60/1286 (removed 1226) transitions.
Running SMT prover for 5 properties.
// Phase 1: matrix 60 rows 33 cols
[2026-05-25 10:19:44] [INFO ] Computed 3 invariants in 1 ms
Starting Z3 with timeout 450.0 s and query timeout 45000.0 ms
[2026-05-25 10:19:44] [INFO ] [Real]Absence check using 3 positive place invariants in 0 ms returned sat
[2026-05-25 10:19:44] [INFO ] After 20ms SMT Verify possible using state equation in real domain returned unsat :0 sat :5
[2026-05-25 10:19:44] [INFO ] State equation strengthened by 2 read => feed constraints.
[2026-05-25 10:19:44] [INFO ] After 12ms SMT Verify possible using 2 Read/Feed constraints in real domain returned unsat :0 sat :0 real:5
[2026-05-25 10:19:44] [INFO ] After 61ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:5
Starting Z3 with timeout 450.0 s and query timeout 45000.0 ms
[2026-05-25 10:19:44] [INFO ] [Nat]Absence check using 3 positive place invariants in 0 ms returned sat
[2026-05-25 10:19:44] [INFO ] After 19ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :5
[2026-05-25 10:19:44] [INFO ] After 10ms SMT Verify possible using 2 Read/Feed constraints in natural domain returned unsat :0 sat :5
TRAPS : Iteration 0
[2026-05-25 10:19:44] [INFO ] After 27ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :5
[2026-05-25 10:19:44] [INFO ] After 82ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :5
[2026-05-25 10:19:44] [INFO ] Flatten gal took : 3 ms
[2026-05-25 10:19:44] [INFO ] Flatten gal took : 2 ms
[2026-05-25 10:19:44] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality15559223157846145521.gal : 1 ms
[2026-05-25 10:19:44] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality8659186525700041320.prop : 0 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality15559223157846145521.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality8659186525700041320.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...329
Loading property file /tmp/ReachabilityCardinality8659186525700041320.prop.
SDD proceeding with computation,5 properties remain. new max is 4
SDD size :1 after 5
SDD proceeding with computation,5 properties remain. new max is 8
SDD size :5 after 17
SDD proceeding with computation,5 properties remain. new max is 16
SDD size :17 after 531
SDD proceeding with computation,5 properties remain. new max is 32
SDD size :531 after 600915
SDD proceeding with computation,5 properties remain. new max is 64
SDD size :600915 after 4.0779e+07
SDD proceeding with computation,5 properties remain. new max is 128
SDD size :4.0779e+07 after 1.7584e+09
SDD proceeding with computation,5 properties remain. new max is 256
SDD size :1.7584e+09 after 6.34959e+10
SDD proceeding with computation,5 properties remain. new max is 512
SDD size :6.34959e+10 after 2.13527e+12
SDD proceeding with computation,5 properties remain. new max is 1024
SDD size :2.13527e+12 after 6.96829e+13
Detected timeout of ITS tools.
[2026-05-25 10:19:59] [INFO ] Flatten gal took : 2 ms
[2026-05-25 10:19:59] [INFO ] Applying decomposition
[2026-05-25 10:19:59] [INFO ] Flatten gal took : 2 ms
Converted graph to binary with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/convert-linux64' '-i' '/tmp/graph5468738150892002684.txt' '-o' '/tmp/graph5468738150892002684.bin' '-w' '/tmp/graph5468738150892002684.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/louvain-linux64' '/tmp/graph5468738150892002684.bin' '-l' '-1' '-v' '-w' '/tmp/graph5468738150892002684.weights' '-q' '0' '-e' '0.001'
[2026-05-25 10:19:59] [INFO ] Decomposing Gal with order
[2026-05-25 10:19:59] [INFO ] Rewriting arrays to variables to allow decomposition.
[2026-05-25 10:19:59] [INFO ] Removed a total of 69 redundant transitions.
[2026-05-25 10:19:59] [INFO ] Flatten gal took : 3 ms
[2026-05-25 10:19:59] [INFO ] Fuse similar labels procedure discarded/fused a total of 6 labels/synchronizations in 1 ms.
[2026-05-25 10:19:59] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality8739086457124179631.gal : 1 ms
[2026-05-25 10:19:59] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality14335557950592647765.prop : 0 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality8739086457124179631.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality14335557950592647765.prop' '--nowitness'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...308
Loading property file /tmp/ReachabilityCardinality14335557950592647765.prop.
SDD proceeding with computation,5 properties remain. new max is 4
SDD size :1 after 5
SDD proceeding with computation,5 properties remain. new max is 8
SDD size :5 after 17
Detected timeout of ITS tools.
Detected timeout of ITS tools.
Over-approximation ignoring read arcs solved 0 properties in 30344 ms.
Current structural bounds on expressions (After reachability solving 0 queries.) : Max Seen:[305, 142, 239, 249, 437] Max Struct:[+inf, +inf, +inf, +inf, +inf]
Starting property specific reduction for FunctionPointer-PT-c008-UpperBounds-03
Current structural bounds on expressions (Initially) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (Adding known information on max bounds.) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (Before main loop) : Max Seen:[0] Max Struct:[+inf]
[2026-05-25 10:20:14] [INFO ] Flow matrix only has 736 transitions (discarded 550 similar events)
// Phase 1: matrix 736 rows 450 cols
[2026-05-25 10:20:14] [INFO ] Computed 3 invariants in 27 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[+inf]
RANDOM walk for 10000 steps (2 resets) in 33 ms. (294 steps per ms)
BEST_FIRST walk for 10001 steps (2 resets) in 8 ms. (1111 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0] Max Struct:[+inf]
[2026-05-25 10:20:14] [INFO ] Flow matrix only has 736 transitions (discarded 550 similar events)
[2026-05-25 10:20:14] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 10:20:14] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:20:14] [INFO ] [Real]Absence check using state equation in 145 ms returned sat
[2026-05-25 10:20:14] [INFO ] State equation strengthened by 86 read => feed constraints.
[2026-05-25 10:20:14] [INFO ] [Real]Added 86 Read/Feed constraints in 40 ms returned sat
[2026-05-25 10:20:14] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 10:20:15] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:20:15] [INFO ] [Nat]Absence check using state equation in 127 ms returned sat
[2026-05-25 10:20:15] [INFO ] [Nat]Added 86 Read/Feed constraints in 28 ms returned sat
[2026-05-25 10:20:15] [INFO ] Computed and/alt/rep : 351/2346/345 causal constraints (skipped 389 transitions) in 179 ms.
[2026-05-25 10:20:15] [INFO ] Added : 8 causal constraints over 5 iterations in 435 ms. Result :sat
Minimization took 270 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[1] Max Struct:[+inf]
Support contains 1 out of 450 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 450/450 places, 1286/1286 transitions.
Discarding 4 places :
Symmetric choice reduction at 0 with 4 rule applications. Total rules 4 place count 446 transition count 1278
Iterating global reduction 0 with 4 rules applied. Total rules applied 8 place count 446 transition count 1278
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 0 with 2 rules applied. Total rules applied 10 place count 446 transition count 1276
Discarding 4 places :
Symmetric choice reduction at 1 with 4 rule applications. Total rules 14 place count 442 transition count 1264
Iterating global reduction 1 with 4 rules applied. Total rules applied 18 place count 442 transition count 1264
Discarding 4 places :
Symmetric choice reduction at 1 with 4 rule applications. Total rules 22 place count 438 transition count 1254
Iterating global reduction 1 with 4 rules applied. Total rules applied 26 place count 438 transition count 1254
Discarding 4 places :
Symmetric choice reduction at 1 with 4 rule applications. Total rules 30 place count 434 transition count 1244
Iterating global reduction 1 with 4 rules applied. Total rules applied 34 place count 434 transition count 1244
Discarding 4 places :
Symmetric choice reduction at 1 with 4 rule applications. Total rules 38 place count 430 transition count 1236
Iterating global reduction 1 with 4 rules applied. Total rules applied 42 place count 430 transition count 1236
Discarding 4 places :
Symmetric choice reduction at 1 with 4 rule applications. Total rules 46 place count 426 transition count 1228
Iterating global reduction 1 with 4 rules applied. Total rules applied 50 place count 426 transition count 1228
Discarding 4 places :
Symmetric choice reduction at 1 with 4 rule applications. Total rules 54 place count 422 transition count 1220
Iterating global reduction 1 with 4 rules applied. Total rules applied 58 place count 422 transition count 1220
Discarding 4 places :
Symmetric choice reduction at 1 with 4 rule applications. Total rules 62 place count 418 transition count 1212
Iterating global reduction 1 with 4 rules applied. Total rules applied 66 place count 418 transition count 1212
Discarding 2 places :
Symmetric choice reduction at 1 with 2 rule applications. Total rules 68 place count 416 transition count 1208
Iterating global reduction 1 with 2 rules applied. Total rules applied 70 place count 416 transition count 1208
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 71 place count 415 transition count 1206
Iterating global reduction 1 with 1 rules applied. Total rules applied 72 place count 415 transition count 1206
Applied a total of 72 rules in 244 ms. Remains 415 /450 variables (removed 35) and now considering 1206/1286 (removed 80) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 244 ms. Remains : 415/450 places, 1206/1286 transitions.
[2026-05-25 10:20:16] [INFO ] Flow matrix only has 680 transitions (discarded 526 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {228=1, 256=1, 259=1, 315=1, 512=1, 675=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {252=1, 339=1, 664=1, 678=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 48 ms. (steps per millisecond=208 ) properties (out of 1) seen :[3]
Current structural bounds on expressions (after cover walk) : Max Seen:[3] Max Struct:[+inf]
[2026-05-25 10:20:16] [INFO ] Flow matrix only has 680 transitions (discarded 526 similar events)
// Phase 1: matrix 680 rows 415 cols
[2026-05-25 10:20:16] [INFO ] Computed 3 invariants in 18 ms
Current structural bounds on expressions (after invariants) : Max Seen:[3] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 2585 ms. (386 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 691 ms. (1445 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[3] Max Struct:[+inf]
[2026-05-25 10:20:20] [INFO ] Flow matrix only has 680 transitions (discarded 526 similar events)
[2026-05-25 10:20:20] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:20:20] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:20:20] [INFO ] [Real]Absence check using state equation in 124 ms returned sat
[2026-05-25 10:20:20] [INFO ] State equation strengthened by 74 read => feed constraints.
[2026-05-25 10:20:20] [INFO ] [Real]Added 74 Read/Feed constraints in 24 ms returned sat
[2026-05-25 10:20:20] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:20:20] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:20:20] [INFO ] [Nat]Absence check using state equation in 131 ms returned sat
[2026-05-25 10:20:20] [INFO ] [Nat]Added 74 Read/Feed constraints in 25 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:20:20] [INFO ] Deduced a trap composed of 70 places in 199 ms of which 24 ms to minimize.
[2026-05-25 10:20:20] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 260 ms
[2026-05-25 10:20:20] [INFO ] Computed and/alt/rep : 333/1252/331 causal constraints (skipped 347 transitions) in 65 ms.
[2026-05-25 10:20:21] [INFO ] Added : 12 causal constraints over 7 iterations in 395 ms. Result :sat
Minimization took 236 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[3] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[3] Max Struct:[+inf]
Support contains 1 out of 415 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 415/415 places, 1206/1206 transitions.
Applied a total of 0 rules in 49 ms. Remains 415 /415 variables (removed 0) and now considering 1206/1206 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 50 ms. Remains : 415/415 places, 1206/1206 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 415/415 places, 1206/1206 transitions.
Applied a total of 0 rules in 46 ms. Remains 415 /415 variables (removed 0) and now considering 1206/1206 (removed 0) transitions.
[2026-05-25 10:20:21] [INFO ] Flow matrix only has 680 transitions (discarded 526 similar events)
[2026-05-25 10:20:21] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 10:20:21] [INFO ] Implicit Places using invariants in 358 ms returned []
[2026-05-25 10:20:21] [INFO ] Flow matrix only has 680 transitions (discarded 526 similar events)
[2026-05-25 10:20:21] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 10:20:22] [INFO ] State equation strengthened by 74 read => feed constraints.
[2026-05-25 10:20:25] [INFO ] Implicit Places using invariants and state equation in 3871 ms returned []
Implicit Place search using SMT with State Equation took 4231 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-25 10:20:25] [INFO ] Redundant transitions in 32 ms returned []
Running 1204 sub problems to find dead transitions.
[2026-05-25 10:20:25] [INFO ] Flow matrix only has 680 transitions (discarded 526 similar events)
[2026-05-25 10:20:25] [INFO ] Invariant cache hit.
[2026-05-25 10:20:25] [INFO ] State equation strengthened by 74 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/415 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1204 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:20:36] [INFO ] Deduced a trap composed of 131 places in 173 ms of which 6 ms to minimize.
At refinement iteration 1 (INCLUDED_ONLY) 0/415 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1204 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 415/1095 variables, and 4 constraints, problems are : Problem set: 0 solved, 1204 unsolved in 30024 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/415 constraints, ReadFeed: 0/74 constraints, PredecessorRefiner: 1204/1204 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1204 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/415 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1204 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/415 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1204 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/415 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1204 unsolved
At refinement iteration 3 (OVERLAPS) 680/1095 variables, 415/419 constraints. Problems are: Problem set: 0 solved, 1204 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1095 variables, 74/493 constraints. Problems are: Problem set: 0 solved, 1204 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1095/1095 variables, and 1697 constraints, problems are : Problem set: 0 solved, 1204 unsolved in 30811 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 415/415 constraints, ReadFeed: 74/74 constraints, PredecessorRefiner: 1204/1204 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 62475ms problems are : Problem set: 0 solved, 1204 unsolved
Search for dead transitions found 0 dead transitions in 62481ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 66799 ms. Remains : 415/415 places, 1206/1206 transitions.
[2026-05-25 10:21:28] [INFO ] Flow matrix only has 680 transitions (discarded 526 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {228=1, 256=1, 259=1, 315=1, 512=1, 675=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {252=1, 339=1, 664=1, 678=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 53 ms. (steps per millisecond=188 ) properties (out of 1) seen :[2]
Current structural bounds on expressions (after cover walk) : Max Seen:[3] Max Struct:[+inf]
[2026-05-25 10:21:28] [INFO ] Flatten gal took : 66 ms
[2026-05-25 10:21:28] [INFO ] Flatten gal took : 34 ms
[2026-05-25 10:21:28] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality10216519465233969326.gal : 9 ms
[2026-05-25 10:21:28] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality15594589031884515947.prop : 0 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality10216519465233969326.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality15594589031884515947.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...330
RANDOM walk for 40001 steps (8 resets) in 390 ms. (102 steps per ms) remains 1/1 properties
BEST_FIRST walk for 34796 steps (7 resets) in 67 ms. (511 steps per ms) remains 0/1 properties
ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
Current structural bounds on expressions (After reachability solving 0 queries.) : Max Seen:[3] Max Struct:[+inf]
Ending property specific reduction for FunctionPointer-PT-c008-UpperBounds-03 in 74401 ms.
Starting property specific reduction for FunctionPointer-PT-c008-UpperBounds-06
Current structural bounds on expressions (Initially) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (Adding known information on max bounds.) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (Before main loop) : Max Seen:[0] Max Struct:[+inf]
[2026-05-25 10:21:28] [INFO ] Flow matrix only has 736 transitions (discarded 550 similar events)
// Phase 1: matrix 736 rows 450 cols
[2026-05-25 10:21:28] [INFO ] Computed 3 invariants in 4 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[+inf]
RANDOM walk for 10000 steps (2 resets) in 35 ms. (277 steps per ms)
BEST_FIRST walk for 10001 steps (2 resets) in 10 ms. (909 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0] Max Struct:[+inf]
[2026-05-25 10:21:29] [INFO ] Flow matrix only has 736 transitions (discarded 550 similar events)
[2026-05-25 10:21:29] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 10:21:29] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:21:29] [INFO ] [Real]Absence check using state equation in 142 ms returned sat
[2026-05-25 10:21:29] [INFO ] State equation strengthened by 86 read => feed constraints.
[2026-05-25 10:21:29] [INFO ] [Real]Added 86 Read/Feed constraints in 28 ms returned sat
[2026-05-25 10:21:29] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 10:21:29] [INFO ] [Nat]Absence check using 3 positive place invariants in 13 ms returned sat
[2026-05-25 10:21:29] [INFO ] [Nat]Absence check using state equation in 145 ms returned sat
[2026-05-25 10:21:29] [INFO ] [Nat]Added 86 Read/Feed constraints in 28 ms returned sat
[2026-05-25 10:21:29] [INFO ] Computed and/alt/rep : 351/2346/345 causal constraints (skipped 389 transitions) in 73 ms.
[2026-05-25 10:21:29] [INFO ] Added : 26 causal constraints over 7 iterations in 398 ms. Result :sat
Minimization took 300 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[1] Max Struct:[+inf]
Support contains 1 out of 450 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 450/450 places, 1286/1286 transitions.
Discarding 4 places :
Symmetric choice reduction at 0 with 4 rule applications. Total rules 4 place count 446 transition count 1278
Iterating global reduction 0 with 4 rules applied. Total rules applied 8 place count 446 transition count 1278
Ensure Unique test removed 4 transitions
Reduce isomorphic transitions removed 4 transitions.
Iterating post reduction 0 with 4 rules applied. Total rules applied 12 place count 446 transition count 1274
Discarding 4 places :
Symmetric choice reduction at 1 with 4 rule applications. Total rules 16 place count 442 transition count 1262
Iterating global reduction 1 with 4 rules applied. Total rules applied 20 place count 442 transition count 1262
Discarding 3 places :
Symmetric choice reduction at 1 with 3 rule applications. Total rules 23 place count 439 transition count 1256
Iterating global reduction 1 with 3 rules applied. Total rules applied 26 place count 439 transition count 1256
Discarding 3 places :
Symmetric choice reduction at 1 with 3 rule applications. Total rules 29 place count 436 transition count 1248
Iterating global reduction 1 with 3 rules applied. Total rules applied 32 place count 436 transition count 1248
Discarding 3 places :
Symmetric choice reduction at 1 with 3 rule applications. Total rules 35 place count 433 transition count 1242
Iterating global reduction 1 with 3 rules applied. Total rules applied 38 place count 433 transition count 1242
Discarding 3 places :
Symmetric choice reduction at 1 with 3 rule applications. Total rules 41 place count 430 transition count 1236
Iterating global reduction 1 with 3 rules applied. Total rules applied 44 place count 430 transition count 1236
Discarding 3 places :
Symmetric choice reduction at 1 with 3 rule applications. Total rules 47 place count 427 transition count 1230
Iterating global reduction 1 with 3 rules applied. Total rules applied 50 place count 427 transition count 1230
Discarding 3 places :
Symmetric choice reduction at 1 with 3 rule applications. Total rules 53 place count 424 transition count 1224
Iterating global reduction 1 with 3 rules applied. Total rules applied 56 place count 424 transition count 1224
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 57 place count 423 transition count 1222
Iterating global reduction 1 with 1 rules applied. Total rules applied 58 place count 423 transition count 1222
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 59 place count 422 transition count 1220
Iterating global reduction 1 with 1 rules applied. Total rules applied 60 place count 422 transition count 1220
Applied a total of 60 rules in 154 ms. Remains 422 /450 variables (removed 28) and now considering 1220/1286 (removed 66) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 154 ms. Remains : 422/450 places, 1220/1286 transitions.
[2026-05-25 10:21:30] [INFO ] Flow matrix only has 689 transitions (discarded 531 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {228=1, 320=1, 518=1, 684=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {252=1, 344=1, 670=1, 688=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 49 ms. (steps per millisecond=204 ) properties (out of 1) seen :[0]
Current structural bounds on expressions (after cover walk) : Max Seen:[1] Max Struct:[+inf]
[2026-05-25 10:21:30] [INFO ] Flow matrix only has 689 transitions (discarded 531 similar events)
// Phase 1: matrix 689 rows 422 cols
[2026-05-25 10:21:30] [INFO ] Computed 3 invariants in 6 ms
Current structural bounds on expressions (after invariants) : Max Seen:[1] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 2672 ms. (374 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 802 ms. (1245 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[189] Max Struct:[+inf]
[2026-05-25 10:21:34] [INFO ] Flow matrix only has 689 transitions (discarded 531 similar events)
[2026-05-25 10:21:34] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:21:34] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:21:34] [INFO ] [Real]Absence check using state equation in 145 ms returned sat
[2026-05-25 10:21:34] [INFO ] State equation strengthened by 75 read => feed constraints.
[2026-05-25 10:21:34] [INFO ] [Real]Added 75 Read/Feed constraints in 21 ms returned sat
[2026-05-25 10:21:34] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:21:34] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 10:21:34] [INFO ] [Nat]Absence check using state equation in 143 ms returned sat
[2026-05-25 10:21:34] [INFO ] [Nat]Added 75 Read/Feed constraints in 19 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:21:35] [INFO ] Deduced a trap composed of 70 places in 241 ms of which 33 ms to minimize.
[2026-05-25 10:21:35] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 281 ms
[2026-05-25 10:21:35] [INFO ] Computed and/alt/rep : 332/1248/332 causal constraints (skipped 355 transitions) in 68 ms.
[2026-05-25 10:21:35] [INFO ] Added : 9 causal constraints over 3 iterations in 346 ms. Result :sat
Minimization took 252 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[189] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[189] Max Struct:[+inf]
Support contains 1 out of 422 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 422/422 places, 1220/1220 transitions.
Applied a total of 0 rules in 55 ms. Remains 422 /422 variables (removed 0) and now considering 1220/1220 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 55 ms. Remains : 422/422 places, 1220/1220 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 422/422 places, 1220/1220 transitions.
Applied a total of 0 rules in 71 ms. Remains 422 /422 variables (removed 0) and now considering 1220/1220 (removed 0) transitions.
[2026-05-25 10:21:35] [INFO ] Flow matrix only has 689 transitions (discarded 531 similar events)
[2026-05-25 10:21:35] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 10:21:36] [INFO ] Implicit Places using invariants in 291 ms returned []
[2026-05-25 10:21:36] [INFO ] Flow matrix only has 689 transitions (discarded 531 similar events)
[2026-05-25 10:21:36] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 10:21:36] [INFO ] State equation strengthened by 75 read => feed constraints.
[2026-05-25 10:21:37] [INFO ] Implicit Places using invariants and state equation in 1572 ms returned []
Implicit Place search using SMT with State Equation took 1865 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-25 10:21:37] [INFO ] Redundant transitions in 18 ms returned []
Running 1218 sub problems to find dead transitions.
[2026-05-25 10:21:37] [INFO ] Flow matrix only has 689 transitions (discarded 531 similar events)
[2026-05-25 10:21:37] [INFO ] Invariant cache hit.
[2026-05-25 10:21:37] [INFO ] State equation strengthened by 75 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/422 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1218 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:21:48] [INFO ] Deduced a trap composed of 131 places in 156 ms of which 6 ms to minimize.
At refinement iteration 1 (INCLUDED_ONLY) 0/422 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1218 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 422/1111 variables, and 4 constraints, problems are : Problem set: 0 solved, 1218 unsolved in 30044 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/422 constraints, ReadFeed: 0/75 constraints, PredecessorRefiner: 1218/1218 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1218 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/422 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1218 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/422 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1218 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/422 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1218 unsolved
At refinement iteration 3 (OVERLAPS) 689/1111 variables, 422/426 constraints. Problems are: Problem set: 0 solved, 1218 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1111 variables, 75/501 constraints. Problems are: Problem set: 0 solved, 1218 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1111/1111 variables, and 1719 constraints, problems are : Problem set: 0 solved, 1218 unsolved in 30805 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 422/422 constraints, ReadFeed: 75/75 constraints, PredecessorRefiner: 1218/1218 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 62854ms problems are : Problem set: 0 solved, 1218 unsolved
Search for dead transitions found 0 dead transitions in 62858ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 64823 ms. Remains : 422/422 places, 1220/1220 transitions.
[2026-05-25 10:22:40] [INFO ] Flow matrix only has 689 transitions (discarded 531 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {228=1, 320=1, 518=1, 684=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {252=1, 344=1, 670=1, 688=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 58 ms. (steps per millisecond=172 ) properties (out of 1) seen :[0]
Current structural bounds on expressions (after cover walk) : Max Seen:[189] Max Struct:[+inf]
[2026-05-25 10:22:40] [INFO ] Flow matrix only has 689 transitions (discarded 531 similar events)
[2026-05-25 10:22:40] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[189] Max Struct:[+inf]
RANDOM walk for 1000002 steps (2 resets) in 2726 ms. (366 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 694 ms. (1438 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[190] Max Struct:[+inf]
[2026-05-25 10:22:44] [INFO ] Flow matrix only has 689 transitions (discarded 531 similar events)
[2026-05-25 10:22:44] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:22:44] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:22:44] [INFO ] [Real]Absence check using state equation in 145 ms returned sat
[2026-05-25 10:22:44] [INFO ] State equation strengthened by 75 read => feed constraints.
[2026-05-25 10:22:44] [INFO ] [Real]Added 75 Read/Feed constraints in 23 ms returned sat
[2026-05-25 10:22:44] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:22:44] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:22:44] [INFO ] [Nat]Absence check using state equation in 144 ms returned sat
[2026-05-25 10:22:44] [INFO ] [Nat]Added 75 Read/Feed constraints in 20 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:22:45] [INFO ] Deduced a trap composed of 70 places in 237 ms of which 33 ms to minimize.
[2026-05-25 10:22:45] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 285 ms
[2026-05-25 10:22:45] [INFO ] Computed and/alt/rep : 332/1248/332 causal constraints (skipped 355 transitions) in 68 ms.
[2026-05-25 10:22:45] [INFO ] Added : 9 causal constraints over 3 iterations in 342 ms. Result :sat
Minimization took 247 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[190] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[190] Max Struct:[+inf]
Support contains 1 out of 422 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 422/422 places, 1220/1220 transitions.
Applied a total of 0 rules in 49 ms. Remains 422 /422 variables (removed 0) and now considering 1220/1220 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 49 ms. Remains : 422/422 places, 1220/1220 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 422/422 places, 1220/1220 transitions.
Applied a total of 0 rules in 48 ms. Remains 422 /422 variables (removed 0) and now considering 1220/1220 (removed 0) transitions.
[2026-05-25 10:22:45] [INFO ] Flow matrix only has 689 transitions (discarded 531 similar events)
[2026-05-25 10:22:45] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 10:22:46] [INFO ] Implicit Places using invariants in 287 ms returned []
[2026-05-25 10:22:46] [INFO ] Flow matrix only has 689 transitions (discarded 531 similar events)
[2026-05-25 10:22:46] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 10:22:46] [INFO ] State equation strengthened by 75 read => feed constraints.
[2026-05-25 10:22:47] [INFO ] Implicit Places using invariants and state equation in 1535 ms returned []
Implicit Place search using SMT with State Equation took 1823 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-25 10:22:47] [INFO ] Redundant transitions in 26 ms returned []
Running 1218 sub problems to find dead transitions.
[2026-05-25 10:22:47] [INFO ] Flow matrix only has 689 transitions (discarded 531 similar events)
[2026-05-25 10:22:47] [INFO ] Invariant cache hit.
[2026-05-25 10:22:47] [INFO ] State equation strengthened by 75 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/422 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1218 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:22:57] [INFO ] Deduced a trap composed of 131 places in 145 ms of which 6 ms to minimize.
At refinement iteration 1 (INCLUDED_ONLY) 0/422 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1218 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 422/1111 variables, and 4 constraints, problems are : Problem set: 0 solved, 1218 unsolved in 30029 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/422 constraints, ReadFeed: 0/75 constraints, PredecessorRefiner: 1218/1218 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1218 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/422 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1218 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/422 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1218 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/422 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1218 unsolved
At refinement iteration 3 (OVERLAPS) 689/1111 variables, 422/426 constraints. Problems are: Problem set: 0 solved, 1218 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1111 variables, 75/501 constraints. Problems are: Problem set: 0 solved, 1218 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1111/1111 variables, and 1719 constraints, problems are : Problem set: 0 solved, 1218 unsolved in 30816 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 422/422 constraints, ReadFeed: 75/75 constraints, PredecessorRefiner: 1218/1218 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 62595ms problems are : Problem set: 0 solved, 1218 unsolved
Search for dead transitions found 0 dead transitions in 62597ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 64502 ms. Remains : 422/422 places, 1220/1220 transitions.
[2026-05-25 10:23:50] [INFO ] Flow matrix only has 689 transitions (discarded 531 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {228=1, 320=1, 518=1, 684=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {252=1, 344=1, 670=1, 688=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 49 ms. (steps per millisecond=204 ) properties (out of 1) seen :[0]
Current structural bounds on expressions (after cover walk) : Max Seen:[190] Max Struct:[+inf]
[2026-05-25 10:23:50] [INFO ] Flow matrix only has 689 transitions (discarded 531 similar events)
[2026-05-25 10:23:50] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[190] Max Struct:[+inf]
RANDOM walk for 1000001 steps (2 resets) in 2597 ms. (384 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 706 ms. (1414 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[190] Max Struct:[+inf]
[2026-05-25 10:23:53] [INFO ] Flow matrix only has 689 transitions (discarded 531 similar events)
[2026-05-25 10:23:53] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:23:53] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:23:54] [INFO ] [Real]Absence check using state equation in 146 ms returned sat
[2026-05-25 10:23:54] [INFO ] State equation strengthened by 75 read => feed constraints.
[2026-05-25 10:23:54] [INFO ] [Real]Added 75 Read/Feed constraints in 20 ms returned sat
[2026-05-25 10:23:54] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:23:54] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:23:54] [INFO ] [Nat]Absence check using state equation in 147 ms returned sat
[2026-05-25 10:23:54] [INFO ] [Nat]Added 75 Read/Feed constraints in 31 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:23:54] [INFO ] Deduced a trap composed of 70 places in 220 ms of which 33 ms to minimize.
[2026-05-25 10:23:54] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 278 ms
[2026-05-25 10:23:54] [INFO ] Computed and/alt/rep : 332/1248/332 causal constraints (skipped 355 transitions) in 66 ms.
[2026-05-25 10:23:54] [INFO ] Added : 9 causal constraints over 3 iterations in 313 ms. Result :sat
Minimization took 255 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[190] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[190] Max Struct:[+inf]
Support contains 1 out of 422 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 422/422 places, 1220/1220 transitions.
Applied a total of 0 rules in 47 ms. Remains 422 /422 variables (removed 0) and now considering 1220/1220 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 48 ms. Remains : 422/422 places, 1220/1220 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 422/422 places, 1220/1220 transitions.
Applied a total of 0 rules in 46 ms. Remains 422 /422 variables (removed 0) and now considering 1220/1220 (removed 0) transitions.
[2026-05-25 10:23:55] [INFO ] Flow matrix only has 689 transitions (discarded 531 similar events)
[2026-05-25 10:23:55] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 10:23:55] [INFO ] Implicit Places using invariants in 302 ms returned []
[2026-05-25 10:23:55] [INFO ] Flow matrix only has 689 transitions (discarded 531 similar events)
[2026-05-25 10:23:55] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 10:23:55] [INFO ] State equation strengthened by 75 read => feed constraints.
[2026-05-25 10:23:57] [INFO ] Implicit Places using invariants and state equation in 1581 ms returned []
Implicit Place search using SMT with State Equation took 1885 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-25 10:23:57] [INFO ] Redundant transitions in 25 ms returned []
Running 1218 sub problems to find dead transitions.
[2026-05-25 10:23:57] [INFO ] Flow matrix only has 689 transitions (discarded 531 similar events)
[2026-05-25 10:23:57] [INFO ] Invariant cache hit.
[2026-05-25 10:23:57] [INFO ] State equation strengthened by 75 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/422 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1218 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:24:07] [INFO ] Deduced a trap composed of 131 places in 152 ms of which 6 ms to minimize.
At refinement iteration 1 (INCLUDED_ONLY) 0/422 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1218 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 422/1111 variables, and 4 constraints, problems are : Problem set: 0 solved, 1218 unsolved in 30020 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/422 constraints, ReadFeed: 0/75 constraints, PredecessorRefiner: 1218/1218 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1218 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/422 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1218 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/422 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1218 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/422 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1218 unsolved
At refinement iteration 3 (OVERLAPS) 689/1111 variables, 422/426 constraints. Problems are: Problem set: 0 solved, 1218 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1111 variables, 75/501 constraints. Problems are: Problem set: 0 solved, 1218 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1111/1111 variables, and 1719 constraints, problems are : Problem set: 0 solved, 1218 unsolved in 30844 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 422/422 constraints, ReadFeed: 75/75 constraints, PredecessorRefiner: 1218/1218 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 62692ms problems are : Problem set: 0 solved, 1218 unsolved
Search for dead transitions found 0 dead transitions in 62694ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 64657 ms. Remains : 422/422 places, 1220/1220 transitions.
[2026-05-25 10:24:59] [INFO ] Flow matrix only has 689 transitions (discarded 531 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {228=1, 320=1, 518=1, 684=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {252=1, 344=1, 670=1, 688=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 50 ms. (steps per millisecond=200 ) properties (out of 1) seen :[0]
Current structural bounds on expressions (after cover walk) : Max Seen:[190] Max Struct:[+inf]
RANDOM walk for 40000 steps (8 resets) in 166 ms. (239 steps per ms) remains 1/1 properties
[2026-05-25 10:25:00] [INFO ] Flatten gal took : 41 ms
BEST_FIRST walk for 40003 steps (8 resets) in 50 ms. (784 steps per ms) remains 1/1 properties
[2026-05-25 10:25:00] [INFO ] Flatten gal took : 31 ms
[2026-05-25 10:25:00] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality4067858470160511222.gal : 6 ms
[2026-05-25 10:25:00] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality11297101267037999662.prop : 0 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality4067858470160511222.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality11297101267037999662.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...329
Loading property file /tmp/ReachabilityCardinality11297101267037999662.prop.
SDD proceeding with computation,1 properties remain. new max is 4
SDD size :1 after 31
SDD proceeding with computation,1 properties remain. new max is 8
SDD size :31 after 1994
SDD proceeding with computation,1 properties remain. new max is 16
SDD size :1994 after 1.22555e+06
Interrupted probabilistic random walk after 530591 steps, run timeout after 3001 ms. (steps per millisecond=176 ) properties seen :0 out of 1
Probabilistic random walk after 530591 steps, saw 325352 distinct states, run finished after 3001 ms. (steps per millisecond=176 ) properties seen :0
[2026-05-25 10:25:03] [INFO ] Flow matrix only has 689 transitions (discarded 531 similar events)
[2026-05-25 10:25:03] [INFO ] Invariant cache hit.
[2026-05-25 10:25:03] [INFO ] State equation strengthened by 75 read => feed constraints.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 2/3 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/3 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 5/8 variables, 2/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/8 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 7/15 variables, 3/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/15 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 10/25 variables, 4/10 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/25 variables, 0/10 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 352/377 variables, 8/18 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/377 variables, 2/20 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/377 variables, 0/20 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 12 (OVERLAPS) 7/384 variables, 2/22 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/384 variables, 3/25 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/384 variables, 0/25 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 600/984 variables, 335/360 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/984 variables, 73/433 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/984 variables, 0/433 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 62/1046 variables, 1/434 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/1046 variables, 0/434 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (OVERLAPS) 65/1111 variables, 66/500 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/1111 variables, 0/500 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (OVERLAPS) 0/1111 variables, 0/500 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 1111/1111 variables, and 500 constraints, problems are : Problem set: 0 solved, 1 unsolved in 300 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 422/422 constraints, ReadFeed: 75/75 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 2/3 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/3 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 5/8 variables, 2/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/8 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 7/15 variables, 3/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/15 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 10/25 variables, 4/10 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/25 variables, 0/10 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 352/377 variables, 8/18 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/377 variables, 2/20 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/377 variables, 1/21 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/377 variables, 0/21 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 7/384 variables, 2/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/384 variables, 3/26 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/384 variables, 0/26 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 600/984 variables, 335/361 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/984 variables, 73/434 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/984 variables, 0/434 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 62/1046 variables, 1/435 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/1046 variables, 0/435 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 65/1111 variables, 66/501 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/1111 variables, 0/501 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 0/1111 variables, 0/501 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 1111/1111 variables, and 501 constraints, problems are : Problem set: 0 solved, 1 unsolved in 363 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 422/422 constraints, ReadFeed: 75/75 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 670ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 1337 ms.
Support contains 1 out of 422 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 422/422 places, 1220/1220 transitions.
Applied a total of 0 rules in 47 ms. Remains 422 /422 variables (removed 0) and now considering 1220/1220 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 47 ms. Remains : 422/422 places, 1220/1220 transitions.
RANDOM walk for 40001 steps (8 resets) in 161 ms. (246 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (8 resets) in 43 ms. (909 steps per ms) remains 1/1 properties
SDD proceeding with computation,1 properties remain. new max is 32
SDD size :1.22555e+06 after 2.64763e+10
Interrupted probabilistic random walk after 526953 steps, run timeout after 3001 ms. (steps per millisecond=175 ) properties seen :0 out of 1
Probabilistic random walk after 526953 steps, saw 323122 distinct states, run finished after 3001 ms. (steps per millisecond=175 ) properties seen :0
[2026-05-25 10:25:08] [INFO ] Flow matrix only has 689 transitions (discarded 531 similar events)
[2026-05-25 10:25:08] [INFO ] Invariant cache hit.
[2026-05-25 10:25:08] [INFO ] State equation strengthened by 75 read => feed constraints.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 2/3 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/3 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 5/8 variables, 2/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/8 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 7/15 variables, 3/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/15 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 10/25 variables, 4/10 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/25 variables, 0/10 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 352/377 variables, 8/18 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/377 variables, 2/20 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/377 variables, 0/20 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 12 (OVERLAPS) 7/384 variables, 2/22 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/384 variables, 3/25 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/384 variables, 0/25 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 600/984 variables, 335/360 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/984 variables, 73/433 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/984 variables, 0/433 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 62/1046 variables, 1/434 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/1046 variables, 0/434 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (OVERLAPS) 65/1111 variables, 66/500 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/1111 variables, 0/500 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (OVERLAPS) 0/1111 variables, 0/500 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 1111/1111 variables, and 500 constraints, problems are : Problem set: 0 solved, 1 unsolved in 265 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 422/422 constraints, ReadFeed: 75/75 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 2/3 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/3 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 5/8 variables, 2/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/8 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 7/15 variables, 3/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/15 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 10/25 variables, 4/10 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/25 variables, 0/10 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 352/377 variables, 8/18 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/377 variables, 2/20 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/377 variables, 1/21 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/377 variables, 0/21 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 7/384 variables, 2/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/384 variables, 3/26 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/384 variables, 0/26 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 600/984 variables, 335/361 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/984 variables, 73/434 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/984 variables, 0/434 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 62/1046 variables, 1/435 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/1046 variables, 0/435 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 65/1111 variables, 66/501 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/1111 variables, 0/501 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 0/1111 variables, 0/501 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 1111/1111 variables, and 501 constraints, problems are : Problem set: 0 solved, 1 unsolved in 362 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 422/422 constraints, ReadFeed: 75/75 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 637ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 1274 ms.
Support contains 1 out of 422 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 422/422 places, 1220/1220 transitions.
Applied a total of 0 rules in 55 ms. Remains 422 /422 variables (removed 0) and now considering 1220/1220 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 55 ms. Remains : 422/422 places, 1220/1220 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 422/422 places, 1220/1220 transitions.
Applied a total of 0 rules in 46 ms. Remains 422 /422 variables (removed 0) and now considering 1220/1220 (removed 0) transitions.
[2026-05-25 10:25:10] [INFO ] Flow matrix only has 689 transitions (discarded 531 similar events)
[2026-05-25 10:25:10] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 10:25:10] [INFO ] Implicit Places using invariants in 304 ms returned []
[2026-05-25 10:25:10] [INFO ] Flow matrix only has 689 transitions (discarded 531 similar events)
[2026-05-25 10:25:10] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 10:25:10] [INFO ] State equation strengthened by 75 read => feed constraints.
[2026-05-25 10:25:12] [INFO ] Implicit Places using invariants and state equation in 1513 ms returned []
Implicit Place search using SMT with State Equation took 1836 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-25 10:25:12] [INFO ] Redundant transitions in 18 ms returned []
Running 1218 sub problems to find dead transitions.
[2026-05-25 10:25:12] [INFO ] Flow matrix only has 689 transitions (discarded 531 similar events)
[2026-05-25 10:25:12] [INFO ] Invariant cache hit.
[2026-05-25 10:25:12] [INFO ] State equation strengthened by 75 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/422 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1218 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
SDD proceeding with computation,1 properties remain. new max is 64
SDD size :2.64763e+10 after 7.78635e+13
[2026-05-25 10:25:22] [INFO ] Deduced a trap composed of 131 places in 145 ms of which 6 ms to minimize.
SDD proceeding with computation,1 properties remain. new max is 128
SDD size :7.78635e+13 after 2.43134e+14
SDD proceeding with computation,1 properties remain. new max is 256
SDD size :2.43134e+14 after 3.44424e+14
SDD proceeding with computation,1 properties remain. new max is 512
SDD size :3.44424e+14 after 6.39645e+14
SDD proceeding with computation,1 properties remain. new max is 1024
SDD size :6.39645e+14 after 1.13724e+15
SDD proceeding with computation,1 properties remain. new max is 2048
SDD size :1.13724e+15 after 1.1489e+15
SDD proceeding with computation,1 properties remain. new max is 4096
SDD size :1.1489e+15 after 1.8371e+15
At refinement iteration 1 (INCLUDED_ONLY) 0/422 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1218 unsolved
Error getting values : (error "ParserException while parsing response: (timeout
org.smtlib.IParser$ParserException: Unbalanced parentheses at end of input")
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 422/1111 variables, and 4 constraints, problems are : Problem set: 0 solved, 1218 unsolved in 30030 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/422 constraints, ReadFeed: 0/75 constraints, PredecessorRefiner: 1218/1218 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1218 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/422 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1218 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/422 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1218 unsolved
SDD proceeding with computation,1 properties remain. new max is 8192
SDD size :1.8371e+15 after 1.18987e+16
SDD proceeding with computation,1 properties remain. new max is 16384
SDD size :1.18987e+16 after 1.25837e+16
Detected timeout of ITS tools.
[2026-05-25 10:25:50] [INFO ] Flatten gal took : 30 ms
[2026-05-25 10:25:50] [INFO ] Applying decomposition
[2026-05-25 10:25:50] [INFO ] Flatten gal took : 29 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/graph12360796830013339531.txt' '-o' '/tmp/graph12360796830013339531.bin' '-w' '/tmp/graph12360796830013339531.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/louvain-linux64' '/tmp/graph12360796830013339531.bin' '-l' '-1' '-v' '-w' '/tmp/graph12360796830013339531.weights' '-q' '0' '-e' '0.001'
[2026-05-25 10:25:50] [INFO ] Decomposing Gal with order
[2026-05-25 10:25:50] [INFO ] Rewriting arrays to variables to allow decomposition.
[2026-05-25 10:25:50] [INFO ] Removed a total of 2088 redundant transitions.
[2026-05-25 10:25:50] [INFO ] Flatten gal took : 55 ms
[2026-05-25 10:25:50] [INFO ] Fuse similar labels procedure discarded/fused a total of 866 labels/synchronizations in 47 ms.
[2026-05-25 10:25:50] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality13967843567157131793.gal : 6 ms
[2026-05-25 10:25:50] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality9256344233392538497.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/ReachabilityCardinality13967843567157131793.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality9256344233392538497.prop' '--nowitness'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...308
Loading property file /tmp/ReachabilityCardinality9256344233392538497.prop.
At refinement iteration 2 (INCLUDED_ONLY) 0/422 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1218 unsolved
At refinement iteration 3 (OVERLAPS) 689/1111 variables, 422/426 constraints. Problems are: Problem set: 0 solved, 1218 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1111 variables, 75/501 constraints. Problems are: Problem set: 0 solved, 1218 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1111/1111 variables, and 1719 constraints, problems are : Problem set: 0 solved, 1218 unsolved in 30927 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 422/422 constraints, ReadFeed: 75/75 constraints, PredecessorRefiner: 1218/1218 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 63095ms problems are : Problem set: 0 solved, 1218 unsolved
Search for dead transitions found 0 dead transitions in 63098ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 65003 ms. Remains : 422/422 places, 1220/1220 transitions.
Attempting over-approximation, by ignoring read arcs.
Ensure Unique test removed 531 transitions
Reduce isomorphic transitions removed 531 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 10 transitions
Trivial Post-agglo rules discarded 10 transitions
Performed 10 trivial Post agglomeration. Transition count delta: 10
Iterating post reduction 0 with 541 rules applied. Total rules applied 541 place count 422 transition count 679
Reduce places removed 10 places and 0 transitions.
Iterating post reduction 1 with 10 rules applied. Total rules applied 551 place count 412 transition count 679
Performed 73 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 73 Pre rules applied. Total rules applied 551 place count 412 transition count 606
Deduced a syphon composed of 73 places in 0 ms
Reduce places removed 73 places and 0 transitions.
Iterating global reduction 2 with 146 rules applied. Total rules applied 697 place count 339 transition count 606
Performed 127 Post agglomeration using F-continuation condition.Transition count delta: 127
Deduced a syphon composed of 127 places in 0 ms
Reduce places removed 127 places and 0 transitions.
Iterating global reduction 2 with 254 rules applied. Total rules applied 951 place count 212 transition count 479
Discarding 64 places :
Symmetric choice reduction at 2 with 64 rule applications. Total rules 1015 place count 148 transition count 351
Iterating global reduction 2 with 64 rules applied. Total rules applied 1079 place count 148 transition count 351
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 2 with 1 rules applied. Total rules applied 1080 place count 148 transition count 350
Discarding 63 places :
Symmetric choice reduction at 3 with 63 rule applications. Total rules 1143 place count 85 transition count 224
Iterating global reduction 3 with 63 rules applied. Total rules applied 1206 place count 85 transition count 224
Discarding 63 places :
Symmetric choice reduction at 3 with 63 rule applications. Total rules 1269 place count 22 transition count 98
Iterating global reduction 3 with 63 rules applied. Total rules applied 1332 place count 22 transition count 98
Ensure Unique test removed 63 transitions
Reduce isomorphic transitions removed 63 transitions.
Iterating post reduction 3 with 63 rules applied. Total rules applied 1395 place count 22 transition count 35
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 4 with 1 Pre rules applied. Total rules applied 1395 place count 22 transition count 34
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 4 with 2 rules applied. Total rules applied 1397 place count 21 transition count 34
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 4 with 2 rules applied. Total rules applied 1399 place count 20 transition count 33
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 0
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 4 with 2 rules applied. Total rules applied 1401 place count 19 transition count 33
Applied a total of 1401 rules in 34 ms. Remains 19 /422 variables (removed 403) and now considering 33/1220 (removed 1187) transitions.
Running SMT prover for 1 properties.
// Phase 1: matrix 33 rows 19 cols
[2026-05-25 10:26:15] [INFO ] Computed 3 invariants in 1 ms
Starting Z3 with timeout 450.0 s and query timeout 45000.0 ms
[2026-05-25 10:26:15] [INFO ] [Real]Absence check using 3 positive place invariants in 1 ms returned sat
[2026-05-25 10:26:15] [INFO ] After 9ms SMT Verify possible using state equation in real domain returned unsat :0 sat :1
[2026-05-25 10:26:15] [INFO ] State equation strengthened by 2 read => feed constraints.
[2026-05-25 10:26:15] [INFO ] After 2ms SMT Verify possible using 2 Read/Feed constraints in real domain returned unsat :0 sat :0 real:1
[2026-05-25 10:26:15] [INFO ] After 34ms 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 10:26:15] [INFO ] [Nat]Absence check using 3 positive place invariants in 1 ms returned sat
[2026-05-25 10:26:15] [INFO ] After 10ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
[2026-05-25 10:26:15] [INFO ] After 2ms SMT Verify possible using 2 Read/Feed constraints in natural domain returned unsat :0 sat :1
TRAPS : Iteration 0
[2026-05-25 10:26:15] [INFO ] After 4ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
[2026-05-25 10:26:15] [INFO ] After 38ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
[2026-05-25 10:26:15] [INFO ] Flatten gal took : 2 ms
[2026-05-25 10:26:15] [INFO ] Flatten gal took : 1 ms
[2026-05-25 10:26:15] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality7621934814786066533.gal : 1 ms
[2026-05-25 10:26:15] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality12041424076860299794.prop : 0 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality7621934814786066533.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality12041424076860299794.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...329
Loading property file /tmp/ReachabilityCardinality12041424076860299794.prop.
SDD proceeding with computation,1 properties remain. new max is 4
SDD size :1 after 5
SDD proceeding with computation,1 properties remain. new max is 8
SDD size :5 after 17
SDD proceeding with computation,1 properties remain. new max is 16
SDD size :17 after 207
SDD proceeding with computation,1 properties remain. new max is 32
SDD size :207 after 2655
SDD proceeding with computation,1 properties remain. new max is 64
SDD size :2655 after 6615
SDD proceeding with computation,1 properties remain. new max is 128
SDD size :6615 after 14415
SDD proceeding with computation,1 properties remain. new max is 256
SDD size :14415 after 29895
SDD proceeding with computation,1 properties remain. new max is 512
SDD size :29895 after 60735
SDD proceeding with computation,1 properties remain. new max is 1024
SDD size :60735 after 122295
SDD proceeding with computation,1 properties remain. new max is 2048
SDD size :122295 after 245295
SDD proceeding with computation,1 properties remain. new max is 4096
SDD size :245295 after 491175
Detected timeout of ITS tools.
[2026-05-25 10:26:30] [INFO ] Flatten gal took : 3 ms
[2026-05-25 10:26:30] [INFO ] Applying decomposition
[2026-05-25 10:26:30] [INFO ] Flatten gal took : 3 ms
Converted graph to binary with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/convert-linux64' '-i' '/tmp/graph12613900961151216086.txt' '-o' '/tmp/graph12613900961151216086.bin' '-w' '/tmp/graph12613900961151216086.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/louvain-linux64' '/tmp/graph12613900961151216086.bin' '-l' '-1' '-v' '-w' '/tmp/graph12613900961151216086.weights' '-q' '0' '-e' '0.001'
[2026-05-25 10:26:30] [INFO ] Decomposing Gal with order
[2026-05-25 10:26:30] [INFO ] Rewriting arrays to variables to allow decomposition.
[2026-05-25 10:26:30] [INFO ] Removed a total of 36 redundant transitions.
[2026-05-25 10:26:30] [INFO ] Flatten gal took : 2 ms
[2026-05-25 10:26:30] [INFO ] Fuse similar labels procedure discarded/fused a total of 2 labels/synchronizations in 0 ms.
[2026-05-25 10:26:30] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality9849027166389725648.gal : 0 ms
[2026-05-25 10:26:30] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality5295065178168866374.prop : 0 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality9849027166389725648.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality5295065178168866374.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/ReachabilityCardinality5295065178168866374.prop.
SDD proceeding with computation,1 properties remain. new max is 4
SDD size :1 after 5
SDD proceeding with computation,1 properties remain. new max is 8
SDD size :5 after 17
Detected timeout of ITS tools.
Detected timeout of ITS tools.
Over-approximation ignoring read arcs solved 0 properties in 30197 ms.
Current structural bounds on expressions (After reachability solving 0 queries.) : Max Seen:[190] Max Struct:[+inf]
Ending property specific reduction for FunctionPointer-PT-c008-UpperBounds-06 in 316657 ms.
Starting property specific reduction for FunctionPointer-PT-c008-UpperBounds-08
Current structural bounds on expressions (Initially) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (Adding known information on max bounds.) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (Before main loop) : Max Seen:[0] Max Struct:[+inf]
[2026-05-25 10:26:45] [INFO ] Flow matrix only has 736 transitions (discarded 550 similar events)
// Phase 1: matrix 736 rows 450 cols
[2026-05-25 10:26:45] [INFO ] Computed 3 invariants in 10 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[+inf]
RANDOM walk for 10005 steps (2 resets) in 29 ms. (333 steps per ms)
BEST_FIRST walk for 10001 steps (2 resets) in 8 ms. (1111 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[9] Max Struct:[+inf]
[2026-05-25 10:26:45] [INFO ] Flow matrix only has 736 transitions (discarded 550 similar events)
[2026-05-25 10:26:45] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 10:26:45] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 10:26:45] [INFO ] [Real]Absence check using state equation in 133 ms returned sat
[2026-05-25 10:26:45] [INFO ] State equation strengthened by 86 read => feed constraints.
[2026-05-25 10:26:45] [INFO ] [Real]Added 86 Read/Feed constraints in 27 ms returned sat
[2026-05-25 10:26:45] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 10:26:46] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 10:26:46] [INFO ] [Nat]Absence check using state equation in 130 ms returned sat
[2026-05-25 10:26:46] [INFO ] [Nat]Added 86 Read/Feed constraints in 25 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:26:46] [INFO ] Deduced a trap composed of 74 places in 240 ms of which 35 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:26:46] [INFO ] Deduced a trap composed of 80 places in 238 ms of which 43 ms to minimize.
[2026-05-25 10:26:46] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 582 ms
[2026-05-25 10:26:46] [INFO ] Computed and/alt/rep : 351/2346/345 causal constraints (skipped 389 transitions) in 72 ms.
[2026-05-25 10:26:47] [INFO ] Added : 40 causal constraints over 9 iterations in 444 ms. Result :sat
Minimization took 410 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[9] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[9] Max Struct:[+inf]
Support contains 1 out of 450 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 450/450 places, 1286/1286 transitions.
Discarding 4 places :
Symmetric choice reduction at 0 with 4 rule applications. Total rules 4 place count 446 transition count 1278
Iterating global reduction 0 with 4 rules applied. Total rules applied 8 place count 446 transition count 1278
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 0 with 2 rules applied. Total rules applied 10 place count 446 transition count 1276
Discarding 4 places :
Symmetric choice reduction at 1 with 4 rule applications. Total rules 14 place count 442 transition count 1264
Iterating global reduction 1 with 4 rules applied. Total rules applied 18 place count 442 transition count 1264
Discarding 3 places :
Symmetric choice reduction at 1 with 3 rule applications. Total rules 21 place count 439 transition count 1256
Iterating global reduction 1 with 3 rules applied. Total rules applied 24 place count 439 transition count 1256
Discarding 3 places :
Symmetric choice reduction at 1 with 3 rule applications. Total rules 27 place count 436 transition count 1250
Iterating global reduction 1 with 3 rules applied. Total rules applied 30 place count 436 transition count 1250
Discarding 3 places :
Symmetric choice reduction at 1 with 3 rule applications. Total rules 33 place count 433 transition count 1244
Iterating global reduction 1 with 3 rules applied. Total rules applied 36 place count 433 transition count 1244
Discarding 3 places :
Symmetric choice reduction at 1 with 3 rule applications. Total rules 39 place count 430 transition count 1238
Iterating global reduction 1 with 3 rules applied. Total rules applied 42 place count 430 transition count 1238
Discarding 3 places :
Symmetric choice reduction at 1 with 3 rule applications. Total rules 45 place count 427 transition count 1232
Iterating global reduction 1 with 3 rules applied. Total rules applied 48 place count 427 transition count 1232
Discarding 3 places :
Symmetric choice reduction at 1 with 3 rule applications. Total rules 51 place count 424 transition count 1226
Iterating global reduction 1 with 3 rules applied. Total rules applied 54 place count 424 transition count 1226
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 55 place count 423 transition count 1224
Iterating global reduction 1 with 1 rules applied. Total rules applied 56 place count 423 transition count 1224
Applied a total of 56 rules in 121 ms. Remains 423 /450 variables (removed 27) and now considering 1224/1286 (removed 62) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 122 ms. Remains : 423/450 places, 1224/1286 transitions.
[2026-05-25 10:26:47] [INFO ] Flow matrix only has 691 transitions (discarded 533 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {203=1, 297=1, 495=1, 686=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {252=1, 346=1, 544=1, 687=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 53 ms. (steps per millisecond=188 ) properties (out of 1) seen :[3]
Current structural bounds on expressions (after cover walk) : Max Seen:[9] Max Struct:[+inf]
[2026-05-25 10:26:48] [INFO ] Flow matrix only has 691 transitions (discarded 533 similar events)
// Phase 1: matrix 691 rows 423 cols
[2026-05-25 10:26:48] [INFO ] Computed 3 invariants in 3 ms
Current structural bounds on expressions (after invariants) : Max Seen:[9] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 2669 ms. (374 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 691 ms. (1445 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[9] Max Struct:[+inf]
[2026-05-25 10:26:51] [INFO ] Flow matrix only has 691 transitions (discarded 533 similar events)
[2026-05-25 10:26:51] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:26:51] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:26:51] [INFO ] [Real]Absence check using state equation in 151 ms returned sat
[2026-05-25 10:26:51] [INFO ] State equation strengthened by 75 read => feed constraints.
[2026-05-25 10:26:51] [INFO ] [Real]Added 75 Read/Feed constraints in 31 ms returned sat
[2026-05-25 10:26:51] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:26:51] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:26:51] [INFO ] [Nat]Absence check using state equation in 150 ms returned sat
[2026-05-25 10:26:52] [INFO ] [Nat]Added 75 Read/Feed constraints in 41 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:26:52] [INFO ] Deduced a trap composed of 70 places in 218 ms of which 34 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:26:52] [INFO ] Deduced a trap composed of 77 places in 223 ms of which 34 ms to minimize.
[2026-05-25 10:26:52] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 537 ms
[2026-05-25 10:26:52] [INFO ] Computed and/alt/rep : 339/1255/332 causal constraints (skipped 357 transitions) in 67 ms.
[2026-05-25 10:26:53] [INFO ] Added : 30 causal constraints over 8 iterations in 508 ms. Result :sat
Minimization took 253 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[9] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[9] Max Struct:[+inf]
Support contains 1 out of 423 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 423/423 places, 1224/1224 transitions.
Applied a total of 0 rules in 46 ms. Remains 423 /423 variables (removed 0) and now considering 1224/1224 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 46 ms. Remains : 423/423 places, 1224/1224 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 423/423 places, 1224/1224 transitions.
Applied a total of 0 rules in 47 ms. Remains 423 /423 variables (removed 0) and now considering 1224/1224 (removed 0) transitions.
[2026-05-25 10:26:53] [INFO ] Flow matrix only has 691 transitions (discarded 533 similar events)
[2026-05-25 10:26:53] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 10:26:53] [INFO ] Implicit Places using invariants in 291 ms returned []
[2026-05-25 10:26:53] [INFO ] Flow matrix only has 691 transitions (discarded 533 similar events)
[2026-05-25 10:26:53] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 10:26:53] [INFO ] State equation strengthened by 75 read => feed constraints.
[2026-05-25 10:26:58] [INFO ] Implicit Places using invariants and state equation in 4325 ms returned []
Implicit Place search using SMT with State Equation took 4617 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-25 10:26:58] [INFO ] Redundant transitions in 18 ms returned []
Running 1222 sub problems to find dead transitions.
[2026-05-25 10:26:58] [INFO ] Flow matrix only has 691 transitions (discarded 533 similar events)
[2026-05-25 10:26:58] [INFO ] Invariant cache hit.
[2026-05-25 10:26:58] [INFO ] State equation strengthened by 75 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/423 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1222 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:27:08] [INFO ] Deduced a trap composed of 131 places in 143 ms of which 6 ms to minimize.
At refinement iteration 1 (INCLUDED_ONLY) 0/423 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1222 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 423/1114 variables, and 4 constraints, problems are : Problem set: 0 solved, 1222 unsolved in 30023 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/423 constraints, ReadFeed: 0/75 constraints, PredecessorRefiner: 1222/1222 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1222 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/423 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1222 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/423 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1222 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/423 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1222 unsolved
At refinement iteration 3 (OVERLAPS) 691/1114 variables, 423/427 constraints. Problems are: Problem set: 0 solved, 1222 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1114 variables, 75/502 constraints. Problems are: Problem set: 0 solved, 1222 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1114/1114 variables, and 1724 constraints, problems are : Problem set: 0 solved, 1222 unsolved in 30823 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 423/423 constraints, ReadFeed: 75/75 constraints, PredecessorRefiner: 1222/1222 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 62737ms problems are : Problem set: 0 solved, 1222 unsolved
Search for dead transitions found 0 dead transitions in 62739ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 67432 ms. Remains : 423/423 places, 1224/1224 transitions.
[2026-05-25 10:28:00] [INFO ] Flow matrix only has 691 transitions (discarded 533 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {203=1, 297=1, 495=1, 686=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {252=1, 346=1, 544=1, 687=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 48 ms. (steps per millisecond=208 ) properties (out of 1) seen :[2]
Current structural bounds on expressions (after cover walk) : Max Seen:[9] Max Struct:[+inf]
[2026-05-25 10:28:01] [INFO ] Flatten gal took : 29 ms
RANDOM walk for 40001 steps (8 resets) in 189 ms. (210 steps per ms) remains 1/1 properties
[2026-05-25 10:28:01] [INFO ] Flatten gal took : 30 ms
[2026-05-25 10:28:01] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality3093050778289750716.gal : 5 ms
BEST_FIRST walk for 40004 steps (8 resets) in 45 ms. (869 steps per ms) remains 1/1 properties
[2026-05-25 10:28:01] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality12126895212232826979.prop : 0 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality3093050778289750716.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality12126895212232826979.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...329
Loading property file /tmp/ReachabilityCardinality12126895212232826979.prop.
SDD proceeding with computation,1 properties remain. new max is 4
SDD size :1 after 31
SDD proceeding with computation,1 properties remain. new max is 8
SDD size :31 after 1994
SDD proceeding with computation,1 properties remain. new max is 16
SDD size :1994 after 1.22555e+06
Interrupted probabilistic random walk after 506963 steps, run timeout after 3016 ms. (steps per millisecond=168 ) properties seen :0 out of 1
Probabilistic random walk after 506963 steps, saw 310865 distinct states, run finished after 3017 ms. (steps per millisecond=168 ) properties seen :0
[2026-05-25 10:28:04] [INFO ] Flow matrix only has 691 transitions (discarded 533 similar events)
[2026-05-25 10:28:04] [INFO ] Invariant cache hit.
[2026-05-25 10:28:04] [INFO ] State equation strengthened by 75 read => feed constraints.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 2/3 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/3 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 6/9 variables, 2/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/9 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 6/15 variables, 3/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/15 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 8/23 variables, 3/9 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/23 variables, 0/9 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 351/374 variables, 6/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/374 variables, 1/16 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/374 variables, 0/16 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 10/384 variables, 2/18 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/384 variables, 4/22 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/384 variables, 0/22 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 601/985 variables, 337/359 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/985 variables, 74/433 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/985 variables, 0/433 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 62/1047 variables, 1/434 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/1047 variables, 0/434 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (OVERLAPS) 66/1113 variables, 66/500 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 21 (INCLUDED_ONLY) 0/1113 variables, 0/500 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (OVERLAPS) 1/1114 variables, 1/501 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (INCLUDED_ONLY) 0/1114 variables, 0/501 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (OVERLAPS) 0/1114 variables, 0/501 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 1114/1114 variables, and 501 constraints, problems are : Problem set: 0 solved, 1 unsolved in 375 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 423/423 constraints, ReadFeed: 75/75 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 2/3 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/3 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 6/9 variables, 2/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/9 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 6/15 variables, 3/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/15 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 8/23 variables, 3/9 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/23 variables, 0/9 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 351/374 variables, 6/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/374 variables, 1/16 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/374 variables, 1/17 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/374 variables, 0/17 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 10/384 variables, 2/19 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/384 variables, 4/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/384 variables, 0/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 601/985 variables, 337/360 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/985 variables, 74/434 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/985 variables, 0/434 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 62/1047 variables, 1/435 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/1047 variables, 0/435 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 66/1113 variables, 66/501 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/1113 variables, 0/501 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 1/1114 variables, 1/502 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (INCLUDED_ONLY) 0/1114 variables, 0/502 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 25 (OVERLAPS) 0/1114 variables, 0/502 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 1114/1114 variables, and 502 constraints, problems are : Problem set: 0 solved, 1 unsolved in 417 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 423/423 constraints, ReadFeed: 75/75 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 800ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 0 ms.
Support contains 1 out of 423 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 423/423 places, 1224/1224 transitions.
Applied a total of 0 rules in 49 ms. Remains 423 /423 variables (removed 0) and now considering 1224/1224 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 49 ms. Remains : 423/423 places, 1224/1224 transitions.
RANDOM walk for 40006 steps (8 resets) in 178 ms. (223 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (8 resets) in 41 ms. (952 steps per ms) remains 1/1 properties
SDD proceeding with computation,1 properties remain. new max is 32
SDD size :1.22555e+06 after 2.64763e+10
Interrupted probabilistic random walk after 524309 steps, run timeout after 3001 ms. (steps per millisecond=174 ) properties seen :0 out of 1
Probabilistic random walk after 524309 steps, saw 321500 distinct states, run finished after 3001 ms. (steps per millisecond=174 ) properties seen :0
[2026-05-25 10:28:08] [INFO ] Flow matrix only has 691 transitions (discarded 533 similar events)
[2026-05-25 10:28:08] [INFO ] Invariant cache hit.
[2026-05-25 10:28:08] [INFO ] State equation strengthened by 75 read => feed constraints.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 2/3 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/3 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 6/9 variables, 2/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/9 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 6/15 variables, 3/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/15 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 8/23 variables, 3/9 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/23 variables, 0/9 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 351/374 variables, 6/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/374 variables, 1/16 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/374 variables, 0/16 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 10/384 variables, 2/18 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/384 variables, 4/22 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/384 variables, 0/22 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 601/985 variables, 337/359 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/985 variables, 74/433 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/985 variables, 0/433 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 62/1047 variables, 1/434 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/1047 variables, 0/434 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (OVERLAPS) 66/1113 variables, 66/500 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 21 (INCLUDED_ONLY) 0/1113 variables, 0/500 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (OVERLAPS) 1/1114 variables, 1/501 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (INCLUDED_ONLY) 0/1114 variables, 0/501 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (OVERLAPS) 0/1114 variables, 0/501 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 1114/1114 variables, and 501 constraints, problems are : Problem set: 0 solved, 1 unsolved in 362 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 423/423 constraints, ReadFeed: 75/75 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 2/3 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/3 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 6/9 variables, 2/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/9 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 6/15 variables, 3/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/15 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 8/23 variables, 3/9 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/23 variables, 0/9 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 351/374 variables, 6/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/374 variables, 1/16 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/374 variables, 1/17 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/374 variables, 0/17 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 10/384 variables, 2/19 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/384 variables, 4/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/384 variables, 0/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 601/985 variables, 337/360 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/985 variables, 74/434 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/985 variables, 0/434 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 62/1047 variables, 1/435 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/1047 variables, 0/435 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 66/1113 variables, 66/501 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/1113 variables, 0/501 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 1/1114 variables, 1/502 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (INCLUDED_ONLY) 0/1114 variables, 0/502 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 25 (OVERLAPS) 0/1114 variables, 0/502 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 1114/1114 variables, and 502 constraints, problems are : Problem set: 0 solved, 1 unsolved in 383 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 423/423 constraints, ReadFeed: 75/75 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 752ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 0 ms.
Support contains 1 out of 423 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 423/423 places, 1224/1224 transitions.
Applied a total of 0 rules in 49 ms. Remains 423 /423 variables (removed 0) and now considering 1224/1224 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 49 ms. Remains : 423/423 places, 1224/1224 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 423/423 places, 1224/1224 transitions.
Applied a total of 0 rules in 54 ms. Remains 423 /423 variables (removed 0) and now considering 1224/1224 (removed 0) transitions.
[2026-05-25 10:28:09] [INFO ] Flow matrix only has 691 transitions (discarded 533 similar events)
[2026-05-25 10:28:09] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 10:28:09] [INFO ] Implicit Places using invariants in 279 ms returned []
[2026-05-25 10:28:09] [INFO ] Flow matrix only has 691 transitions (discarded 533 similar events)
[2026-05-25 10:28:09] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 10:28:09] [INFO ] State equation strengthened by 75 read => feed constraints.
[2026-05-25 10:28:13] [INFO ] Implicit Places using invariants and state equation in 4342 ms returned []
Implicit Place search using SMT with State Equation took 4623 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-25 10:28:13] [INFO ] Redundant transitions in 27 ms returned []
Running 1222 sub problems to find dead transitions.
[2026-05-25 10:28:13] [INFO ] Flow matrix only has 691 transitions (discarded 533 similar events)
[2026-05-25 10:28:13] [INFO ] Invariant cache hit.
[2026-05-25 10:28:13] [INFO ] State equation strengthened by 75 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/423 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1222 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
SDD proceeding with computation,1 properties remain. new max is 64
SDD size :2.64763e+10 after 7.78635e+13
[2026-05-25 10:28:23] [INFO ] Deduced a trap composed of 131 places in 155 ms of which 6 ms to minimize.
SDD proceeding with computation,1 properties remain. new max is 128
SDD size :7.78635e+13 after 2.43134e+14
SDD proceeding with computation,1 properties remain. new max is 256
SDD size :2.43134e+14 after 3.44424e+14
SDD proceeding with computation,1 properties remain. new max is 512
SDD size :3.44424e+14 after 6.39645e+14
SDD proceeding with computation,1 properties remain. new max is 1024
SDD size :6.39645e+14 after 9.70639e+14
At refinement iteration 1 (INCLUDED_ONLY) 0/423 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1222 unsolved
SDD proceeding with computation,1 properties remain. new max is 2048
SDD size :9.70639e+14 after 1.00508e+15
SDD proceeding with computation,1 properties remain. new max is 4096
SDD size :1.00508e+15 after 1.67877e+15
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 423/1114 variables, and 4 constraints, problems are : Problem set: 0 solved, 1222 unsolved in 30034 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/423 constraints, ReadFeed: 0/75 constraints, PredecessorRefiner: 1222/1222 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1222 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/423 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1222 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/423 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1222 unsolved
Detected timeout of ITS tools.
[2026-05-25 10:28:51] [INFO ] Flatten gal took : 27 ms
[2026-05-25 10:28:51] [INFO ] Applying decomposition
[2026-05-25 10:28:51] [INFO ] Flatten gal took : 27 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/graph8789974433512379112.txt' '-o' '/tmp/graph8789974433512379112.bin' '-w' '/tmp/graph8789974433512379112.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/louvain-linux64' '/tmp/graph8789974433512379112.bin' '-l' '-1' '-v' '-w' '/tmp/graph8789974433512379112.weights' '-q' '0' '-e' '0.001'
[2026-05-25 10:28:51] [INFO ] Decomposing Gal with order
[2026-05-25 10:28:51] [INFO ] Rewriting arrays to variables to allow decomposition.
[2026-05-25 10:28:51] [INFO ] Removed a total of 2100 redundant transitions.
[2026-05-25 10:28:51] [INFO ] Flatten gal took : 56 ms
[2026-05-25 10:28:51] [INFO ] Fuse similar labels procedure discarded/fused a total of 925 labels/synchronizations in 52 ms.
[2026-05-25 10:28:51] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality11029992506271155398.gal : 5 ms
[2026-05-25 10:28:51] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality12578519304401908729.prop : 0 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality11029992506271155398.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality12578519304401908729.prop' '--nowitness'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...309
Loading property file /tmp/ReachabilityCardinality12578519304401908729.prop.
At refinement iteration 2 (INCLUDED_ONLY) 0/423 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1222 unsolved
At refinement iteration 3 (OVERLAPS) 691/1114 variables, 423/427 constraints. Problems are: Problem set: 0 solved, 1222 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1114 variables, 75/502 constraints. Problems are: Problem set: 0 solved, 1222 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1114/1114 variables, and 1724 constraints, problems are : Problem set: 0 solved, 1222 unsolved in 30920 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 423/423 constraints, ReadFeed: 75/75 constraints, PredecessorRefiner: 1222/1222 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 62823ms problems are : Problem set: 0 solved, 1222 unsolved
Search for dead transitions found 0 dead transitions in 62824ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 67535 ms. Remains : 423/423 places, 1224/1224 transitions.
Attempting over-approximation, by ignoring read arcs.
Ensure Unique test removed 533 transitions
Reduce isomorphic transitions removed 533 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 10 transitions
Trivial Post-agglo rules discarded 10 transitions
Performed 10 trivial Post agglomeration. Transition count delta: 10
Iterating post reduction 0 with 543 rules applied. Total rules applied 543 place count 423 transition count 681
Reduce places removed 10 places and 0 transitions.
Iterating post reduction 1 with 10 rules applied. Total rules applied 553 place count 413 transition count 681
Performed 73 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 73 Pre rules applied. Total rules applied 553 place count 413 transition count 608
Deduced a syphon composed of 73 places in 0 ms
Reduce places removed 73 places and 0 transitions.
Iterating global reduction 2 with 146 rules applied. Total rules applied 699 place count 340 transition count 608
Performed 128 Post agglomeration using F-continuation condition.Transition count delta: 128
Deduced a syphon composed of 128 places in 1 ms
Reduce places removed 128 places and 0 transitions.
Iterating global reduction 2 with 256 rules applied. Total rules applied 955 place count 212 transition count 480
Discarding 64 places :
Symmetric choice reduction at 2 with 64 rule applications. Total rules 1019 place count 148 transition count 352
Iterating global reduction 2 with 64 rules applied. Total rules applied 1083 place count 148 transition count 352
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 2 with 1 rules applied. Total rules applied 1084 place count 148 transition count 351
Discarding 63 places :
Symmetric choice reduction at 3 with 63 rule applications. Total rules 1147 place count 85 transition count 225
Iterating global reduction 3 with 63 rules applied. Total rules applied 1210 place count 85 transition count 225
Discarding 63 places :
Symmetric choice reduction at 3 with 63 rule applications. Total rules 1273 place count 22 transition count 99
Iterating global reduction 3 with 63 rules applied. Total rules applied 1336 place count 22 transition count 99
Ensure Unique test removed 63 transitions
Reduce isomorphic transitions removed 63 transitions.
Iterating post reduction 3 with 63 rules applied. Total rules applied 1399 place count 22 transition count 36
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 4 with 1 Pre rules applied. Total rules applied 1399 place count 22 transition count 35
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 4 with 2 rules applied. Total rules applied 1401 place count 21 transition count 35
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 4 with 2 rules applied. Total rules applied 1403 place count 20 transition count 34
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 0
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 4 with 2 rules applied. Total rules applied 1405 place count 19 transition count 34
Drop transitions (Redundant composition of simpler transitions.) removed 3 transitions
Redundant transition composition rules discarded 3 transitions
Iterating global reduction 4 with 3 rules applied. Total rules applied 1408 place count 19 transition count 31
Applied a total of 1408 rules in 22 ms. Remains 19 /423 variables (removed 404) and now considering 31/1224 (removed 1193) transitions.
Running SMT prover for 1 properties.
// Phase 1: matrix 31 rows 19 cols
[2026-05-25 10:29:16] [INFO ] Computed 3 invariants in 1 ms
Starting Z3 with timeout 450.0 s and query timeout 45000.0 ms
[2026-05-25 10:29:16] [INFO ] [Real]Absence check using 3 positive place invariants in 1 ms returned sat
[2026-05-25 10:29:16] [INFO ] After 8ms SMT Verify possible using state equation in real domain returned unsat :0 sat :1
[2026-05-25 10:29:16] [INFO ] State equation strengthened by 2 read => feed constraints.
[2026-05-25 10:29:16] [INFO ] After 3ms SMT Verify possible using 2 Read/Feed constraints in real domain returned unsat :0 sat :0 real:1
[2026-05-25 10:29:16] [INFO ] After 32ms 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 10:29:16] [INFO ] [Nat]Absence check using 3 positive place invariants in 0 ms returned sat
[2026-05-25 10:29:16] [INFO ] After 8ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
[2026-05-25 10:29:16] [INFO ] After 2ms SMT Verify possible using 2 Read/Feed constraints in natural domain returned unsat :0 sat :1
TRAPS : Iteration 0
[2026-05-25 10:29:16] [INFO ] After 4ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
[2026-05-25 10:29:16] [INFO ] After 32ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
[2026-05-25 10:29:16] [INFO ] Flatten gal took : 1 ms
[2026-05-25 10:29:16] [INFO ] Flatten gal took : 1 ms
[2026-05-25 10:29:16] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality12193730534006192887.gal : 0 ms
[2026-05-25 10:29:16] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality4132540830845205259.prop : 0 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality12193730534006192887.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality4132540830845205259.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...329
Loading property file /tmp/ReachabilityCardinality4132540830845205259.prop.
SDD proceeding with computation,1 properties remain. new max is 4
SDD size :1 after 5
SDD proceeding with computation,1 properties remain. new max is 8
SDD size :5 after 17
SDD proceeding with computation,1 properties remain. new max is 16
SDD size :17 after 126
SDD proceeding with computation,1 properties remain. new max is 32
SDD size :126 after 615
SDD proceeding with computation,1 properties remain. new max is 64
SDD size :615 after 8175
SDD proceeding with computation,1 properties remain. new max is 128
SDD size :8175 after 23775
SDD proceeding with computation,1 properties remain. new max is 256
SDD size :23775 after 54735
SDD proceeding with computation,1 properties remain. new max is 512
SDD size :54735 after 116415
SDD proceeding with computation,1 properties remain. new max is 1024
SDD size :116415 after 239535
SDD proceeding with computation,1 properties remain. new max is 2048
SDD size :239535 after 485535
SDD proceeding with computation,1 properties remain. new max is 4096
SDD size :485535 after 977295
Detected timeout of ITS tools.
[2026-05-25 10:29:31] [INFO ] Flatten gal took : 3 ms
[2026-05-25 10:29:31] [INFO ] Applying decomposition
[2026-05-25 10:29:31] [INFO ] Flatten gal took : 2 ms
Converted graph to binary with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/convert-linux64' '-i' '/tmp/graph3115068258767257552.txt' '-o' '/tmp/graph3115068258767257552.bin' '-w' '/tmp/graph3115068258767257552.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/louvain-linux64' '/tmp/graph3115068258767257552.bin' '-l' '-1' '-v' '-w' '/tmp/graph3115068258767257552.weights' '-q' '0' '-e' '0.001'
[2026-05-25 10:29:31] [INFO ] Decomposing Gal with order
[2026-05-25 10:29:31] [INFO ] Rewriting arrays to variables to allow decomposition.
[2026-05-25 10:29:31] [INFO ] Removed a total of 30 redundant transitions.
[2026-05-25 10:29:31] [INFO ] Flatten gal took : 2 ms
[2026-05-25 10:29:31] [INFO ] Fuse similar labels procedure discarded/fused a total of 2 labels/synchronizations in 1 ms.
[2026-05-25 10:29:31] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality17761798008260301103.gal : 1 ms
[2026-05-25 10:29:31] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality15460830455048065318.prop : 0 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality17761798008260301103.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality15460830455048065318.prop' '--nowitness'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...309
Loading property file /tmp/ReachabilityCardinality15460830455048065318.prop.
SDD proceeding with computation,1 properties remain. new max is 4
SDD size :1 after 5
SDD proceeding with computation,1 properties remain. new max is 8
SDD size :5 after 17
SDD proceeding with computation,1 properties remain. new max is 16
SDD size :17 after 484
Detected timeout of ITS tools.
Detected timeout of ITS tools.
Over-approximation ignoring read arcs solved 0 properties in 30172 ms.
Current structural bounds on expressions (After reachability solving 0 queries.) : Max Seen:[9] Max Struct:[+inf]
Ending property specific reduction for FunctionPointer-PT-c008-UpperBounds-08 in 181050 ms.
Starting property specific reduction for FunctionPointer-PT-c008-UpperBounds-10
Current structural bounds on expressions (Initially) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (Adding known information on max bounds.) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (Before main loop) : Max Seen:[0] Max Struct:[+inf]
[2026-05-25 10:29:46] [INFO ] Flow matrix only has 736 transitions (discarded 550 similar events)
// Phase 1: matrix 736 rows 450 cols
[2026-05-25 10:29:46] [INFO ] Computed 3 invariants in 3 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[+inf]
RANDOM walk for 10000 steps (2 resets) in 34 ms. (285 steps per ms)
BEST_FIRST walk for 10001 steps (2 resets) in 8 ms. (1111 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0] Max Struct:[+inf]
[2026-05-25 10:29:46] [INFO ] Flow matrix only has 736 transitions (discarded 550 similar events)
[2026-05-25 10:29:46] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 10:29:46] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:29:46] [INFO ] [Real]Absence check using state equation in 145 ms returned sat
[2026-05-25 10:29:46] [INFO ] State equation strengthened by 86 read => feed constraints.
[2026-05-25 10:29:46] [INFO ] [Real]Added 86 Read/Feed constraints in 20 ms returned sat
[2026-05-25 10:29:47] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 10:29:47] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:29:47] [INFO ] [Nat]Absence check using state equation in 143 ms returned sat
[2026-05-25 10:29:47] [INFO ] [Nat]Added 86 Read/Feed constraints in 33 ms returned sat
[2026-05-25 10:29:47] [INFO ] Computed and/alt/rep : 351/2346/345 causal constraints (skipped 389 transitions) in 79 ms.
[2026-05-25 10:29:47] [INFO ] Added : 9 causal constraints over 3 iterations in 276 ms. Result :sat
Minimization took 269 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[1] Max Struct:[+inf]
Support contains 1 out of 450 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 450/450 places, 1286/1286 transitions.
Discarding 4 places :
Symmetric choice reduction at 0 with 4 rule applications. Total rules 4 place count 446 transition count 1278
Iterating global reduction 0 with 4 rules applied. Total rules applied 8 place count 446 transition count 1278
Ensure Unique test removed 4 transitions
Reduce isomorphic transitions removed 4 transitions.
Iterating post reduction 0 with 4 rules applied. Total rules applied 12 place count 446 transition count 1274
Discarding 4 places :
Symmetric choice reduction at 1 with 4 rule applications. Total rules 16 place count 442 transition count 1264
Iterating global reduction 1 with 4 rules applied. Total rules applied 20 place count 442 transition count 1264
Discarding 3 places :
Symmetric choice reduction at 1 with 3 rule applications. Total rules 23 place count 439 transition count 1256
Iterating global reduction 1 with 3 rules applied. Total rules applied 26 place count 439 transition count 1256
Discarding 3 places :
Symmetric choice reduction at 1 with 3 rule applications. Total rules 29 place count 436 transition count 1248
Iterating global reduction 1 with 3 rules applied. Total rules applied 32 place count 436 transition count 1248
Discarding 3 places :
Symmetric choice reduction at 1 with 3 rule applications. Total rules 35 place count 433 transition count 1242
Iterating global reduction 1 with 3 rules applied. Total rules applied 38 place count 433 transition count 1242
Discarding 3 places :
Symmetric choice reduction at 1 with 3 rule applications. Total rules 41 place count 430 transition count 1236
Iterating global reduction 1 with 3 rules applied. Total rules applied 44 place count 430 transition count 1236
Discarding 3 places :
Symmetric choice reduction at 1 with 3 rule applications. Total rules 47 place count 427 transition count 1230
Iterating global reduction 1 with 3 rules applied. Total rules applied 50 place count 427 transition count 1230
Discarding 3 places :
Symmetric choice reduction at 1 with 3 rule applications. Total rules 53 place count 424 transition count 1224
Iterating global reduction 1 with 3 rules applied. Total rules applied 56 place count 424 transition count 1224
Discarding 2 places :
Symmetric choice reduction at 1 with 2 rule applications. Total rules 58 place count 422 transition count 1220
Iterating global reduction 1 with 2 rules applied. Total rules applied 60 place count 422 transition count 1220
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 61 place count 421 transition count 1218
Iterating global reduction 1 with 1 rules applied. Total rules applied 62 place count 421 transition count 1218
Applied a total of 62 rules in 138 ms. Remains 421 /450 variables (removed 29) and now considering 1218/1286 (removed 68) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 139 ms. Remains : 421/450 places, 1218/1286 transitions.
[2026-05-25 10:29:48] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {216=1, 307=1, 633=1, 686=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {252=1, 343=1, 541=1, 684=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 55 ms. (steps per millisecond=181 ) properties (out of 1) seen :[0]
Current structural bounds on expressions (after cover walk) : Max Seen:[1] Max Struct:[+inf]
[2026-05-25 10:29:48] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
// Phase 1: matrix 688 rows 421 cols
[2026-05-25 10:29:48] [INFO ] Computed 3 invariants in 8 ms
Current structural bounds on expressions (after invariants) : Max Seen:[1] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 2616 ms. (382 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 685 ms. (1457 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[1] Max Struct:[+inf]
[2026-05-25 10:29:51] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
[2026-05-25 10:29:51] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:29:51] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 10:29:51] [INFO ] [Real]Absence check using state equation in 129 ms returned sat
[2026-05-25 10:29:51] [INFO ] State equation strengthened by 75 read => feed constraints.
[2026-05-25 10:29:51] [INFO ] [Real]Added 75 Read/Feed constraints in 22 ms returned sat
[2026-05-25 10:29:51] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:29:51] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:29:52] [INFO ] [Nat]Absence check using state equation in 127 ms returned sat
[2026-05-25 10:29:52] [INFO ] [Nat]Added 75 Read/Feed constraints in 17 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:29:52] [INFO ] Deduced a trap composed of 70 places in 212 ms of which 24 ms to minimize.
[2026-05-25 10:29:52] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 271 ms
[2026-05-25 10:29:52] [INFO ] Computed and/alt/rep : 332/1248/332 causal constraints (skipped 354 transitions) in 67 ms.
[2026-05-25 10:29:52] [INFO ] Added : 12 causal constraints over 4 iterations in 293 ms. Result :sat
Minimization took 240 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[1] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[1] Max Struct:[+inf]
Support contains 1 out of 421 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 421/421 places, 1218/1218 transitions.
Applied a total of 0 rules in 47 ms. Remains 421 /421 variables (removed 0) and now considering 1218/1218 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 47 ms. Remains : 421/421 places, 1218/1218 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 421/421 places, 1218/1218 transitions.
Applied a total of 0 rules in 46 ms. Remains 421 /421 variables (removed 0) and now considering 1218/1218 (removed 0) transitions.
[2026-05-25 10:29:53] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
[2026-05-25 10:29:53] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 10:29:53] [INFO ] Implicit Places using invariants in 308 ms returned []
[2026-05-25 10:29:53] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
[2026-05-25 10:29:53] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 10:29:53] [INFO ] State equation strengthened by 75 read => feed constraints.
[2026-05-25 10:29:54] [INFO ] Implicit Places using invariants and state equation in 1591 ms returned []
Implicit Place search using SMT with State Equation took 1903 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-25 10:29:54] [INFO ] Redundant transitions in 27 ms returned []
Running 1216 sub problems to find dead transitions.
[2026-05-25 10:29:54] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
[2026-05-25 10:29:54] [INFO ] Invariant cache hit.
[2026-05-25 10:29:54] [INFO ] State equation strengthened by 75 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/421 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:30:05] [INFO ] Deduced a trap composed of 131 places in 135 ms of which 6 ms to minimize.
At refinement iteration 1 (INCLUDED_ONLY) 0/421 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 421/1109 variables, and 4 constraints, problems are : Problem set: 0 solved, 1216 unsolved in 30024 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/421 constraints, ReadFeed: 0/75 constraints, PredecessorRefiner: 1216/1216 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1216 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/421 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/421 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/421 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
At refinement iteration 3 (OVERLAPS) 688/1109 variables, 421/425 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1109 variables, 75/500 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1109/1109 variables, and 1716 constraints, problems are : Problem set: 0 solved, 1216 unsolved in 30824 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 421/421 constraints, ReadFeed: 75/75 constraints, PredecessorRefiner: 1216/1216 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 62696ms problems are : Problem set: 0 solved, 1216 unsolved
Search for dead transitions found 0 dead transitions in 62698ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 64690 ms. Remains : 421/421 places, 1218/1218 transitions.
[2026-05-25 10:30:57] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {216=1, 307=1, 633=1, 686=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {252=1, 343=1, 541=1, 684=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 53 ms. (steps per millisecond=188 ) properties (out of 1) seen :[0]
Current structural bounds on expressions (after cover walk) : Max Seen:[1] Max Struct:[+inf]
[2026-05-25 10:30:58] [INFO ] Flatten gal took : 42 ms
[2026-05-25 10:30:58] [INFO ] Flatten gal took : 24 ms
[2026-05-25 10:30:58] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality15525275761630157905.gal : 5 ms
[2026-05-25 10:30:58] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality366218503037416730.prop : 0 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality15525275761630157905.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality366218503037416730.prop' '--nowitness' '--gen-order' 'FOLLOW'
RANDOM walk for 40005 steps (8 resets) in 211 ms. (188 steps per ms) remains 1/1 properties

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...328
BEST_FIRST walk for 31000 steps (6 resets) in 39 ms. (775 steps per ms) remains 0/1 properties
ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
Current structural bounds on expressions (After reachability solving 0 queries.) : Max Seen:[1] Max Struct:[+inf]
Ending property specific reduction for FunctionPointer-PT-c008-UpperBounds-10 in 71390 ms.
Starting property specific reduction for FunctionPointer-PT-c008-UpperBounds-14
Current structural bounds on expressions (Initially) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (Adding known information on max bounds.) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (Before main loop) : Max Seen:[0] Max Struct:[+inf]
[2026-05-25 10:30:58] [INFO ] Flow matrix only has 736 transitions (discarded 550 similar events)
// Phase 1: matrix 736 rows 450 cols
[2026-05-25 10:30:58] [INFO ] Computed 3 invariants in 3 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[+inf]
RANDOM walk for 10001 steps (2 resets) in 29 ms. (333 steps per ms)
BEST_FIRST walk for 10001 steps (2 resets) in 8 ms. (1111 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0] Max Struct:[+inf]
[2026-05-25 10:30:58] [INFO ] Flow matrix only has 736 transitions (discarded 550 similar events)
[2026-05-25 10:30:58] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 10:30:58] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:30:58] [INFO ] [Real]Absence check using state equation in 155 ms returned sat
[2026-05-25 10:30:58] [INFO ] State equation strengthened by 86 read => feed constraints.
[2026-05-25 10:30:58] [INFO ] [Real]Added 86 Read/Feed constraints in 26 ms returned sat
[2026-05-25 10:30:58] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 10:30:58] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:30:58] [INFO ] [Nat]Absence check using state equation in 136 ms returned sat
[2026-05-25 10:30:58] [INFO ] [Nat]Added 86 Read/Feed constraints in 22 ms returned sat
[2026-05-25 10:30:58] [INFO ] Computed and/alt/rep : 351/2346/345 causal constraints (skipped 389 transitions) in 85 ms.
[2026-05-25 10:30:59] [INFO ] Added : 18 causal constraints over 5 iterations in 378 ms. Result :sat
Minimization took 262 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0] Max Struct:[+inf]
Support contains 1 out of 450 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 450/450 places, 1286/1286 transitions.
Discarding 4 places :
Symmetric choice reduction at 0 with 4 rule applications. Total rules 4 place count 446 transition count 1278
Iterating global reduction 0 with 4 rules applied. Total rules applied 8 place count 446 transition count 1278
Ensure Unique test removed 4 transitions
Reduce isomorphic transitions removed 4 transitions.
Iterating post reduction 0 with 4 rules applied. Total rules applied 12 place count 446 transition count 1274
Discarding 4 places :
Symmetric choice reduction at 1 with 4 rule applications. Total rules 16 place count 442 transition count 1264
Iterating global reduction 1 with 4 rules applied. Total rules applied 20 place count 442 transition count 1264
Discarding 3 places :
Symmetric choice reduction at 1 with 3 rule applications. Total rules 23 place count 439 transition count 1256
Iterating global reduction 1 with 3 rules applied. Total rules applied 26 place count 439 transition count 1256
Discarding 3 places :
Symmetric choice reduction at 1 with 3 rule applications. Total rules 29 place count 436 transition count 1248
Iterating global reduction 1 with 3 rules applied. Total rules applied 32 place count 436 transition count 1248
Discarding 3 places :
Symmetric choice reduction at 1 with 3 rule applications. Total rules 35 place count 433 transition count 1242
Iterating global reduction 1 with 3 rules applied. Total rules applied 38 place count 433 transition count 1242
Discarding 3 places :
Symmetric choice reduction at 1 with 3 rule applications. Total rules 41 place count 430 transition count 1236
Iterating global reduction 1 with 3 rules applied. Total rules applied 44 place count 430 transition count 1236
Discarding 3 places :
Symmetric choice reduction at 1 with 3 rule applications. Total rules 47 place count 427 transition count 1230
Iterating global reduction 1 with 3 rules applied. Total rules applied 50 place count 427 transition count 1230
Discarding 3 places :
Symmetric choice reduction at 1 with 3 rule applications. Total rules 53 place count 424 transition count 1224
Iterating global reduction 1 with 3 rules applied. Total rules applied 56 place count 424 transition count 1224
Discarding 2 places :
Symmetric choice reduction at 1 with 2 rule applications. Total rules 58 place count 422 transition count 1220
Iterating global reduction 1 with 2 rules applied. Total rules applied 60 place count 422 transition count 1220
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 61 place count 421 transition count 1218
Iterating global reduction 1 with 1 rules applied. Total rules applied 62 place count 421 transition count 1218
Applied a total of 62 rules in 132 ms. Remains 421 /450 variables (removed 29) and now considering 1218/1286 (removed 68) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 132 ms. Remains : 421/450 places, 1218/1286 transitions.
[2026-05-25 10:30:59] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {233=1, 324=1, 522=1, 683=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {252=1, 343=1, 541=1, 684=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 59 ms. (steps per millisecond=169 ) properties (out of 1) seen :[0]
Current structural bounds on expressions (after cover walk) : Max Seen:[0] Max Struct:[+inf]
[2026-05-25 10:30:59] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
// Phase 1: matrix 688 rows 421 cols
[2026-05-25 10:30:59] [INFO ] Computed 3 invariants in 8 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[+inf]
RANDOM walk for 1000001 steps (2 resets) in 2634 ms. (379 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 706 ms. (1414 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0] Max Struct:[+inf]
[2026-05-25 10:31:03] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
[2026-05-25 10:31:03] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:31:03] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:31:03] [INFO ] [Real]Absence check using state equation in 136 ms returned sat
[2026-05-25 10:31:03] [INFO ] State equation strengthened by 75 read => feed constraints.
[2026-05-25 10:31:03] [INFO ] [Real]Added 75 Read/Feed constraints in 26 ms returned sat
[2026-05-25 10:31:03] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:31:03] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 10:31:03] [INFO ] [Nat]Absence check using state equation in 132 ms returned sat
[2026-05-25 10:31:03] [INFO ] [Nat]Added 75 Read/Feed constraints in 25 ms returned sat
[2026-05-25 10:31:03] [INFO ] Computed and/alt/rep : 332/1248/332 causal constraints (skipped 354 transitions) in 65 ms.
[2026-05-25 10:31:03] [INFO ] Added : 11 causal constraints over 4 iterations in 258 ms. Result :sat
Minimization took 259 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0] Max Struct:[+inf]
Support contains 1 out of 421 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 421/421 places, 1218/1218 transitions.
Applied a total of 0 rules in 47 ms. Remains 421 /421 variables (removed 0) and now considering 1218/1218 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 48 ms. Remains : 421/421 places, 1218/1218 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 421/421 places, 1218/1218 transitions.
Applied a total of 0 rules in 45 ms. Remains 421 /421 variables (removed 0) and now considering 1218/1218 (removed 0) transitions.
[2026-05-25 10:31:04] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
[2026-05-25 10:31:04] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 10:31:04] [INFO ] Implicit Places using invariants in 290 ms returned []
[2026-05-25 10:31:04] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
[2026-05-25 10:31:04] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 10:31:04] [INFO ] State equation strengthened by 75 read => feed constraints.
[2026-05-25 10:31:06] [INFO ] Implicit Places using invariants and state equation in 1611 ms returned []
Implicit Place search using SMT with State Equation took 1902 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-25 10:31:06] [INFO ] Redundant transitions in 28 ms returned []
Running 1216 sub problems to find dead transitions.
[2026-05-25 10:31:06] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
[2026-05-25 10:31:06] [INFO ] Invariant cache hit.
[2026-05-25 10:31:06] [INFO ] State equation strengthened by 75 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/421 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:31:16] [INFO ] Deduced a trap composed of 131 places in 144 ms of which 6 ms to minimize.
At refinement iteration 1 (INCLUDED_ONLY) 0/421 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 421/1109 variables, and 4 constraints, problems are : Problem set: 0 solved, 1216 unsolved in 30023 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/421 constraints, ReadFeed: 0/75 constraints, PredecessorRefiner: 1216/1216 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1216 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/421 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/421 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/421 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
At refinement iteration 3 (OVERLAPS) 688/1109 variables, 421/425 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1109 variables, 75/500 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1109/1109 variables, and 1716 constraints, problems are : Problem set: 0 solved, 1216 unsolved in 30917 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 421/421 constraints, ReadFeed: 75/75 constraints, PredecessorRefiner: 1216/1216 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 62693ms problems are : Problem set: 0 solved, 1216 unsolved
Search for dead transitions found 0 dead transitions in 62695ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 64679 ms. Remains : 421/421 places, 1218/1218 transitions.
[2026-05-25 10:32:08] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {233=1, 324=1, 522=1, 683=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {252=1, 343=1, 541=1, 684=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 50 ms. (steps per millisecond=200 ) properties (out of 1) seen :[0]
Current structural bounds on expressions (after cover walk) : Max Seen:[0] Max Struct:[+inf]
[2026-05-25 10:32:09] [INFO ] Flatten gal took : 27 ms
RANDOM walk for 36762 steps (8 resets) in 172 ms. (212 steps per ms) remains 0/1 properties
[2026-05-25 10:32:09] [INFO ] Flatten gal took : 24 ms
[2026-05-25 10:32:09] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality5159037030463695974.gal : 5 ms
[2026-05-25 10:32:09] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality1434278110021088464.prop : 0 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality5159037030463695974.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality1434278110021088464.prop' '--nowitness' '--gen-order' 'FOLLOW'
ITS runner timed out or was interrupted.

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...328
ITS tools runner thread asked to quit. Dying gracefully.
Current structural bounds on expressions (After reachability solving 0 queries.) : Max Seen:[0] Max Struct:[+inf]
Ending property specific reduction for FunctionPointer-PT-c008-UpperBounds-14 in 71173 ms.
[2026-05-25 10:32:09] [INFO ] Flatten gal took : 26 ms
[2026-05-25 10:32:09] [INFO ] Applying decomposition
[2026-05-25 10:32:09] [INFO ] Flatten gal took : 26 ms
Converted graph to binary with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/convert-linux64' '-i' '/tmp/graph8433885927540930010.txt' '-o' '/tmp/graph8433885927540930010.bin' '-w' '/tmp/graph8433885927540930010.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/louvain-linux64' '/tmp/graph8433885927540930010.bin' '-l' '-1' '-v' '-w' '/tmp/graph8433885927540930010.weights' '-q' '0' '-e' '0.001'
[2026-05-25 10:32:09] [INFO ] Decomposing Gal with order
[2026-05-25 10:32:09] [INFO ] Rewriting arrays to variables to allow decomposition.
[2026-05-25 10:32:09] [INFO ] Removed a total of 2210 redundant transitions.
[2026-05-25 10:32:09] [INFO ] Flatten gal took : 83 ms
[2026-05-25 10:32:09] [INFO ] Fuse similar labels procedure discarded/fused a total of 1005 labels/synchronizations in 22 ms.
[2026-05-25 10:32:09] [INFO ] Time to serialize gal into /tmp/UpperBounds12964802891373907930.gal : 5 ms
[2026-05-25 10:32:09] [INFO ] Time to serialize properties into /tmp/UpperBounds12817532973998532855.prop : 0 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/UpperBounds12964802891373907930.gal' '-t' 'CGAL' '-reachable-file' '/tmp/UpperBounds12817532973998532855.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 ...285
Loading property file /tmp/UpperBounds12817532973998532855.prop.
Detected timeout of ITS tools.
[2026-05-25 11:00:51] [INFO ] Flatten gal took : 207 ms
[2026-05-25 11:00:51] [INFO ] Time to serialize gal into /tmp/UpperBounds2569764280405728447.gal : 28 ms
[2026-05-25 11:00:51] [INFO ] Time to serialize properties into /tmp/UpperBounds7915390842077451048.prop : 14 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/UpperBounds2569764280405728447.gal' '-t' 'CGAL' '-reachable-file' '/tmp/UpperBounds7915390842077451048.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 ...304
Loading property file /tmp/UpperBounds7915390842077451048.prop.

BK_TIME_CONFINEMENT_REACHED

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

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

Sequence of Actions to be Executed by the VM

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

set -x
# this is for BenchKit: configuration of major elements for the test
export BK_INPUT="FunctionPointer-PT-c008"
export BK_EXAMINATION="UpperBounds"
export BK_TOOL="gold2025"
export BK_RESULT_DIR="/tmp/BK_RESULTS/OUTPUTS"
export BK_TIME_CONFINEMENT="3600"
export BK_MEMORY_CONFINEMENT="16384"
export BK_BIN_PATH="/home/mcc/BenchKit/bin/"

# this is specific to your benchmark or test

export BIN_DIR="$HOME/BenchKit/bin"

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

# this is for BenchKit: explicit launching of the test
echo "====================================================================="
echo " Generated by BenchKit 2-5973"
echo " Executing tool gold2025"
echo " Input is FunctionPointer-PT-c008, examination is UpperBounds"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r159-tall-177961079800017"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/FunctionPointer-PT-c008.tgz
mv FunctionPointer-PT-c008 execution
cd execution
if [ "UpperBounds" = "ReachabilityDeadlock" ] || [ "UpperBounds" = "UpperBounds" ] || [ "UpperBounds" = "QuasiLiveness" ] || [ "UpperBounds" = "StableMarking" ] || [ "UpperBounds" = "Liveness" ] || [ "UpperBounds" = "OneSafe" ] || [ "UpperBounds" = "StateSpace" ]; then
rm -f GenericPropertiesVerdict.xml
fi
pwd
ls -lh

echo
echo "--------------------"
echo "content from stdout:"
echo
echo "=== Data for post analysis generated by BenchKit (invocation template)"
echo
if [ "UpperBounds" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "UpperBounds" != "StateSpace" ] ; then
echo "The expected result is a vector of booleans"
echo BOOL_VECTOR
else
echo "no data necessary for post analysis"
fi
echo
if [ -f "UpperBounds.xml" ] ; then # for cunf (txt files deleted;-)
echo echo "here is the order used to build the result vector(from xml file)"
for x in $(grep '' UpperBounds.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "UpperBounds" = "ReachabilityDeadlock" ] || [ "UpperBounds" = "QuasiLiveness" ] || [ "UpperBounds" = "StableMarking" ] || [ "UpperBounds" = "Liveness" ] || [ "UpperBounds" = "OneSafe" ] ; then
echo "FORMULA_NAME UpperBounds"
fi
echo
echo "=== Now, execution of the tool begins"
echo
echo -n "BK_START "
date -u +%s%3N
echo
timeout -s 9 $BK_TIME_CONFINEMENT bash -c "/home/mcc/BenchKit/BenchKit_head.sh 2> STDERR ; echo ; echo -n \"BK_STOP \" ; date -u +%s%3N"
if [ $? -eq 137 ] ; then
echo
echo "BK_TIME_CONFINEMENT_REACHED"
fi
echo
echo "--------------------"
echo "content from stderr:"
echo
cat STDERR ;