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-177961079800021.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-c128, examination is UpperBounds
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r159-tall-177961079800021
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 4.6M
-rw-r--r-- 1 mcc users 7.4K Mar 7 07:26 CTLCardinality.txt
-rw-r--r-- 1 mcc users 77K Mar 7 07:26 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.6K Mar 7 07:26 CTLFireability.txt
-rw-r--r-- 1 mcc users 47K Mar 7 07:26 CTLFireability.xml
-rw-r--r-- 1 mcc users 3.9K Mar 15 10:26 LTLCardinality.txt
-rw-r--r-- 1 mcc users 27K Mar 15 10:26 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.5K Mar 15 10:27 LTLFireability.txt
-rw-r--r-- 1 mcc users 21K Mar 15 10:27 LTLFireability.xml
-rw-r--r-- 1 mcc users 11K Mar 7 07:26 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 107K Mar 7 07:26 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 6.7K Mar 7 07:26 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 50K Mar 7 07:26 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K Mar 15 10:27 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.8K Mar 15 10:27 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-c128-UpperBounds-00
FORMULA_NAME FunctionPointer-PT-c128-UpperBounds-01
FORMULA_NAME FunctionPointer-PT-c128-UpperBounds-02
FORMULA_NAME FunctionPointer-PT-c128-UpperBounds-03
FORMULA_NAME FunctionPointer-PT-c128-UpperBounds-04
FORMULA_NAME FunctionPointer-PT-c128-UpperBounds-05
FORMULA_NAME FunctionPointer-PT-c128-UpperBounds-06
FORMULA_NAME FunctionPointer-PT-c128-UpperBounds-07
FORMULA_NAME FunctionPointer-PT-c128-UpperBounds-08
FORMULA_NAME FunctionPointer-PT-c128-UpperBounds-09
FORMULA_NAME FunctionPointer-PT-c128-UpperBounds-10
FORMULA_NAME FunctionPointer-PT-c128-UpperBounds-11
FORMULA_NAME FunctionPointer-PT-c128-UpperBounds-12
FORMULA_NAME FunctionPointer-PT-c128-UpperBounds-13
FORMULA_NAME FunctionPointer-PT-c128-UpperBounds-14
FORMULA_NAME FunctionPointer-PT-c128-UpperBounds-15

=== Now, execution of the tool begins

BK_START 1779707237717

Invoking MCC driver with
GOLD_TOOL=
BK_EXAMINATION=UpperBounds
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=FunctionPointer-PT-c128
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
UpperBounds PT
Running Version 202505121319
[2026-05-25 11:07:19] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, UpperBounds, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2026-05-25 11:07:19] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-25 11:07:19] [INFO ] Load time of PNML (sax parser for PT used): 430 ms
[2026-05-25 11:07:19] [INFO ] Transformed 2826 places.
[2026-05-25 11:07:19] [INFO ] Transformed 8960 transitions.
[2026-05-25 11:07:19] [INFO ] Parsed PT model containing 2826 places and 8960 transitions and 36096 arcs in 562 ms.
Parsed 16 properties from file /home/mcc/execution/UpperBounds.xml in 8 ms.
Deduced a syphon composed of 1198 places in 68 ms
Reduce places removed 1198 places and 2998 transitions.
FORMULA FunctionPointer-PT-c128-UpperBounds-00 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA FunctionPointer-PT-c128-UpperBounds-01 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA FunctionPointer-PT-c128-UpperBounds-03 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA FunctionPointer-PT-c128-UpperBounds-05 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA FunctionPointer-PT-c128-UpperBounds-06 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA FunctionPointer-PT-c128-UpperBounds-07 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA FunctionPointer-PT-c128-UpperBounds-08 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA FunctionPointer-PT-c128-UpperBounds-09 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA FunctionPointer-PT-c128-UpperBounds-10 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA FunctionPointer-PT-c128-UpperBounds-11 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA FunctionPointer-PT-c128-UpperBounds-12 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA FunctionPointer-PT-c128-UpperBounds-13 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA FunctionPointer-PT-c128-UpperBounds-15 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
Current structural bounds on expressions (Initially) : Max Seen:[0, 0, 0] Max Struct:[+inf, +inf, +inf]
Current structural bounds on expressions (Before main loop) : Max Seen:[0, 0, 0] Max Struct:[+inf, +inf, +inf]
[2026-05-25 11:07:19] [INFO ] Flow matrix only has 3540 transitions (discarded 2422 similar events)
// Phase 1: matrix 3540 rows 1628 cols
[2026-05-25 11:07:20] [INFO ] Computed 4 invariants in 113 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0, 0, 0] Max Struct:[+inf, 1, 1]
RANDOM walk for 10000 steps (2 resets) in 267 ms. (37 steps per ms)
FORMULA FunctionPointer-PT-c128-UpperBounds-04 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 20001 steps (16 resets) in 62 ms. (317 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[7, 0] Max Struct:[+inf, 1]
[2026-05-25 11:07:20] [INFO ] Flow matrix only has 3540 transitions (discarded 2422 similar events)
[2026-05-25 11:07:20] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 11:07:20] [INFO ] [Real]Absence check using 3 positive place invariants in 20 ms returned sat
[2026-05-25 11:07:20] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2026-05-25 11:07:21] [INFO ] [Real]Absence check using state equation in 785 ms returned sat
[2026-05-25 11:07:21] [INFO ] State equation strengthened by 479 read => feed constraints.
[2026-05-25 11:07:22] [INFO ] [Real]Added 479 Read/Feed constraints in 200 ms returned sat
[2026-05-25 11:07:22] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 11:07:22] [INFO ] [Nat]Absence check using 3 positive place invariants in 15 ms returned sat
[2026-05-25 11:07:22] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 0 ms returned sat
[2026-05-25 11:07:23] [INFO ] [Nat]Absence check using state equation in 701 ms returned sat
[2026-05-25 11:07:23] [INFO ] [Nat]Added 479 Read/Feed constraints in 356 ms returned sat
[2026-05-25 11:07:24] [INFO ] Computed and/alt/rep : 351/504/351 causal constraints (skipped 3187 transitions) in 897 ms.
[2026-05-25 11:07:25] [INFO ] Added : 4 causal constraints over 1 iterations in 1440 ms. Result :sat
Minimization took 587 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 11:07:25] [INFO ] [Real]Absence check using 3 positive place invariants in 15 ms returned sat
[2026-05-25 11:07:25] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2026-05-25 11:07:26] [INFO ] [Real]Absence check using state equation in 685 ms returned sat
[2026-05-25 11:07:26] [INFO ] [Real]Added 479 Read/Feed constraints in 228 ms returned sat
[2026-05-25 11:07:27] [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 11:07:27] [INFO ] [Nat]Absence check using 3 positive place invariants in 14 ms returned sat
[2026-05-25 11:07:27] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2026-05-25 11:07:27] [INFO ] [Nat]Absence check using state equation in 709 ms returned sat
[2026-05-25 11:07:28] [INFO ] [Nat]Added 479 Read/Feed constraints in 90 ms returned sat
[2026-05-25 11:07:29] [INFO ] Computed and/alt/rep : 351/504/351 causal constraints (skipped 3187 transitions) in 946 ms.
[2026-05-25 11:07:29] [INFO ] Added : 2 causal constraints over 1 iterations in 1391 ms. Result :sat
Minimization took 578 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[7, 0] Max Struct:[+inf, 1]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[7, 0] Max Struct:[+inf, 1]
Support contains 2 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 1420 are kept as prefixes of interest. Removing 208 places using SCC suffix rule.15 ms
Discarding 208 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 1420 transition count 5578
Discarding 301 places :
Symmetric choice reduction at 1 with 301 rule applications. Total rules 686 place count 1119 transition count 3280
Iterating global reduction 1 with 301 rules applied. Total rules applied 987 place count 1119 transition count 3280
Ensure Unique test removed 352 transitions
Reduce isomorphic transitions removed 352 transitions.
Iterating post reduction 1 with 352 rules applied. Total rules applied 1339 place count 1119 transition count 2928
Discarding 157 places :
Symmetric choice reduction at 2 with 157 rule applications. Total rules 1496 place count 962 transition count 2614
Iterating global reduction 2 with 157 rules applied. Total rules applied 1653 place count 962 transition count 2614
Ensure Unique test removed 64 transitions
Reduce isomorphic transitions removed 64 transitions.
Iterating post reduction 2 with 64 rules applied. Total rules applied 1717 place count 962 transition count 2550
Discarding 13 places :
Symmetric choice reduction at 3 with 13 rule applications. Total rules 1730 place count 949 transition count 2524
Iterating global reduction 3 with 13 rules applied. Total rules applied 1743 place count 949 transition count 2524
Discarding 13 places :
Symmetric choice reduction at 3 with 13 rule applications. Total rules 1756 place count 936 transition count 2498
Iterating global reduction 3 with 13 rules applied. Total rules applied 1769 place count 936 transition count 2498
Discarding 13 places :
Symmetric choice reduction at 3 with 13 rule applications. Total rules 1782 place count 923 transition count 2472
Iterating global reduction 3 with 13 rules applied. Total rules applied 1795 place count 923 transition count 2472
Discarding 13 places :
Symmetric choice reduction at 3 with 13 rule applications. Total rules 1808 place count 910 transition count 2446
Iterating global reduction 3 with 13 rules applied. Total rules applied 1821 place count 910 transition count 2446
Discarding 13 places :
Symmetric choice reduction at 3 with 13 rule applications. Total rules 1834 place count 897 transition count 2420
Iterating global reduction 3 with 13 rules applied. Total rules applied 1847 place count 897 transition count 2420
Discarding 13 places :
Symmetric choice reduction at 3 with 13 rule applications. Total rules 1860 place count 884 transition count 2394
Iterating global reduction 3 with 13 rules applied. Total rules applied 1873 place count 884 transition count 2394
Discarding 13 places :
Symmetric choice reduction at 3 with 13 rule applications. Total rules 1886 place count 871 transition count 2368
Iterating global reduction 3 with 13 rules applied. Total rules applied 1899 place count 871 transition count 2368
Discarding 55 places :
Symmetric choice reduction at 3 with 55 rule applications. Total rules 1954 place count 816 transition count 2162
Iterating global reduction 3 with 55 rules applied. Total rules applied 2009 place count 816 transition count 2162
Discarding 62 places :
Symmetric choice reduction at 3 with 62 rule applications. Total rules 2071 place count 754 transition count 1914
Iterating global reduction 3 with 62 rules applied. Total rules applied 2133 place count 754 transition count 1914
Discarding 62 places :
Symmetric choice reduction at 3 with 62 rule applications. Total rules 2195 place count 692 transition count 1762
Iterating global reduction 3 with 62 rules applied. Total rules applied 2257 place count 692 transition count 1762
Discarding 61 places :
Symmetric choice reduction at 3 with 61 rule applications. Total rules 2318 place count 631 transition count 1640
Iterating global reduction 3 with 61 rules applied. Total rules applied 2379 place count 631 transition count 1640
Discarding 61 places :
Symmetric choice reduction at 3 with 61 rule applications. Total rules 2440 place count 570 transition count 1518
Iterating global reduction 3 with 61 rules applied. Total rules applied 2501 place count 570 transition count 1518
Discarding 61 places :
Symmetric choice reduction at 3 with 61 rule applications. Total rules 2562 place count 509 transition count 1396
Iterating global reduction 3 with 61 rules applied. Total rules applied 2623 place count 509 transition count 1396
Discarding 61 places :
Symmetric choice reduction at 3 with 61 rule applications. Total rules 2684 place count 448 transition count 1274
Iterating global reduction 3 with 61 rules applied. Total rules applied 2745 place count 448 transition count 1274
Discarding 13 places :
Symmetric choice reduction at 3 with 13 rule applications. Total rules 2758 place count 435 transition count 1248
Iterating global reduction 3 with 13 rules applied. Total rules applied 2771 place count 435 transition count 1248
Drop transitions (Redundant composition of simpler transitions.) removed 4 transitions
Redundant transition composition rules discarded 4 transitions
Iterating global reduction 3 with 4 rules applied. Total rules applied 2775 place count 435 transition count 1244
Applied a total of 2775 rules in 1036 ms. Remains 435 /1628 variables (removed 1193) and now considering 1244/5962 (removed 4718) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 1055 ms. Remains : 435/1628 places, 1244/5962 transitions.
[2026-05-25 11:07:31] [INFO ] Flow matrix only has 708 transitions (discarded 536 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {228=1, 328=1, 657=1, 707=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {247=1, 347=1, 548=1, 702=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 207 ms. (steps per millisecond=48 ) properties (out of 2) seen :[9, 1]
Current structural bounds on expressions (after cover walk) : Max Seen:[9, 1] Max Struct:[+inf, 1]
[2026-05-25 11:07:31] [INFO ] Flow matrix only has 708 transitions (discarded 536 similar events)
// Phase 1: matrix 708 rows 435 cols
[2026-05-25 11:07:31] [INFO ] Computed 3 invariants in 5 ms
Current structural bounds on expressions (after invariants) : Max Seen:[9, 1] Max Struct:[+inf, 1]
FORMULA FunctionPointer-PT-c128-UpperBounds-14 1 TECHNIQUES TOPOLOGICAL INITIAL_STATE
RANDOM walk for 1000000 steps (2 resets) in 2957 ms. (338 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 1798 ms. (555 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[7217] Max Struct:[+inf]
[2026-05-25 11:07:36] [INFO ] Flow matrix only has 708 transitions (discarded 536 similar events)
[2026-05-25 11:07:36] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:07:36] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 11:07:36] [INFO ] [Real]Absence check using state equation in 140 ms returned sat
[2026-05-25 11:07:36] [INFO ] State equation strengthened by 80 read => feed constraints.
[2026-05-25 11:07:36] [INFO ] [Real]Added 80 Read/Feed constraints in 50 ms returned sat
[2026-05-25 11:07:36] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:07:36] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 11:07:37] [INFO ] [Nat]Absence check using state equation in 137 ms returned sat
[2026-05-25 11:07:37] [INFO ] [Nat]Added 80 Read/Feed constraints in 50 ms returned sat
[2026-05-25 11:07:37] [INFO ] Computed and/alt/rep : 346/1551/340 causal constraints (skipped 366 transitions) in 69 ms.
[2026-05-25 11:07:37] [INFO ] Added : 18 causal constraints over 5 iterations in 315 ms. Result :sat
Minimization took 292 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[7217] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[7217] Max Struct:[+inf]
Support contains 1 out of 435 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 435/435 places, 1244/1244 transitions.
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 1 place count 434 transition count 1242
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 434 transition count 1242
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 3 place count 433 transition count 1240
Iterating global reduction 0 with 1 rules applied. Total rules applied 4 place count 433 transition count 1240
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 5 place count 432 transition count 1238
Iterating global reduction 0 with 1 rules applied. Total rules applied 6 place count 432 transition count 1238
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 7 place count 431 transition count 1236
Iterating global reduction 0 with 1 rules applied. Total rules applied 8 place count 431 transition count 1236
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 9 place count 430 transition count 1234
Iterating global reduction 0 with 1 rules applied. Total rules applied 10 place count 430 transition count 1234
Applied a total of 10 rules in 107 ms. Remains 430 /435 variables (removed 5) and now considering 1234/1244 (removed 10) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 107 ms. Remains : 430/435 places, 1234/1244 transitions.
[2026-05-25 11:07:37] [INFO ] Flow matrix only has 699 transitions (discarded 535 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {235=1, 256=1, 258=1, 332=1, 660=1, 697=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {252=1, 349=1, 549=1, 694=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 144 ms. (steps per millisecond=69 ) properties (out of 1) seen :[8]
Current structural bounds on expressions (after cover walk) : Max Seen:[7217] Max Struct:[+inf]
[2026-05-25 11:07:38] [INFO ] Flow matrix only has 699 transitions (discarded 535 similar events)
// Phase 1: matrix 699 rows 430 cols
[2026-05-25 11:07:38] [INFO ] Computed 3 invariants in 3 ms
Current structural bounds on expressions (after invariants) : Max Seen:[7217] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 2666 ms. (374 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 1685 ms. (593 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[7217] Max Struct:[+inf]
[2026-05-25 11:07:42] [INFO ] Flow matrix only has 699 transitions (discarded 535 similar events)
[2026-05-25 11:07:42] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:07:42] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 11:07:42] [INFO ] [Real]Absence check using state equation in 147 ms returned sat
[2026-05-25 11:07:42] [INFO ] State equation strengthened by 77 read => feed constraints.
[2026-05-25 11:07:42] [INFO ] [Real]Added 77 Read/Feed constraints in 32 ms returned sat
[2026-05-25 11:07:42] [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 11:07:42] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 11:07:43] [INFO ] [Nat]Absence check using state equation in 135 ms returned sat
[2026-05-25 11:07:43] [INFO ] [Nat]Added 77 Read/Feed constraints in 36 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 11:07:43] [INFO ] Deduced a trap composed of 70 places in 225 ms of which 27 ms to minimize.
[2026-05-25 11:07:43] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 280 ms
[2026-05-25 11:07:43] [INFO ] Computed and/alt/rep : 343/1274/336 causal constraints (skipped 361 transitions) in 69 ms.
[2026-05-25 11:07:43] [INFO ] Added : 16 causal constraints over 5 iterations in 344 ms. Result :sat
Minimization took 266 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[7217] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[7217] Max Struct:[+inf]
Support contains 1 out of 430 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 430/430 places, 1234/1234 transitions.
Applied a total of 0 rules in 51 ms. Remains 430 /430 variables (removed 0) and now considering 1234/1234 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 51 ms. Remains : 430/430 places, 1234/1234 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 430/430 places, 1234/1234 transitions.
Applied a total of 0 rules in 48 ms. Remains 430 /430 variables (removed 0) and now considering 1234/1234 (removed 0) transitions.
[2026-05-25 11:07:44] [INFO ] Flow matrix only has 699 transitions (discarded 535 similar events)
[2026-05-25 11:07:44] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 11:07:44] [INFO ] Implicit Places using invariants in 294 ms returned []
[2026-05-25 11:07:44] [INFO ] Flow matrix only has 699 transitions (discarded 535 similar events)
[2026-05-25 11:07:44] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 11:07:44] [INFO ] State equation strengthened by 77 read => feed constraints.
[2026-05-25 11:07:45] [INFO ] Implicit Places using invariants and state equation in 1544 ms returned []
Implicit Place search using SMT with State Equation took 1841 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-25 11:07:46] [INFO ] Redundant transitions in 85 ms returned []
Running 1232 sub problems to find dead transitions.
[2026-05-25 11:07:46] [INFO ] Flow matrix only has 699 transitions (discarded 535 similar events)
[2026-05-25 11:07:46] [INFO ] Invariant cache hit.
[2026-05-25 11:07:46] [INFO ] State equation strengthened by 77 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/429 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1232 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/429 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 1232 unsolved
At refinement iteration 2 (OVERLAPS) 699/1128 variables, 429/432 constraints. Problems are: Problem set: 0 solved, 1232 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/1128 variables, 77/509 constraints. Problems are: Problem set: 0 solved, 1232 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 1128/1129 variables, and 509 constraints, problems are : Problem set: 0 solved, 1232 unsolved in 30045 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 429/430 constraints, ReadFeed: 77/77 constraints, PredecessorRefiner: 1232/1232 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1232 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/429 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1232 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/429 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 1232 unsolved
At refinement iteration 2 (OVERLAPS) 699/1128 variables, 429/432 constraints. Problems are: Problem set: 0 solved, 1232 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/1128 variables, 77/509 constraints. Problems are: Problem set: 0 solved, 1232 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1128 variables, 256/765 constraints. Problems are: Problem set: 0 solved, 1232 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1128/1129 variables, and 765 constraints, problems are : Problem set: 0 solved, 1232 unsolved in 30043 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 429/430 constraints, ReadFeed: 77/77 constraints, PredecessorRefiner: 256/1232 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 62135ms problems are : Problem set: 0 solved, 1232 unsolved
Search for dead transitions found 0 dead transitions in 62157ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 64156 ms. Remains : 430/430 places, 1234/1234 transitions.
[2026-05-25 11:08:48] [INFO ] Flow matrix only has 699 transitions (discarded 535 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {235=1, 256=1, 258=1, 332=1, 660=1, 697=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {252=1, 349=1, 549=1, 694=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 100 ms. (steps per millisecond=100 ) properties (out of 1) seen :[7]
Current structural bounds on expressions (after cover walk) : Max Seen:[7217] Max Struct:[+inf]
RANDOM walk for 40001 steps (8 resets) in 420 ms. (95 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (8 resets) in 79 ms. (500 steps per ms) remains 1/1 properties
[2026-05-25 11:08:49] [INFO ] Flatten gal took : 220 ms
[2026-05-25 11:08:49] [INFO ] Flatten gal took : 79 ms
[2026-05-25 11:08:49] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality16965784901861739628.gal : 51 ms
[2026-05-25 11:08:49] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality3193299615315781471.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/ReachabilityCardinality16965784901861739628.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality3193299615315781471.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/ReachabilityCardinality3193299615315781471.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 1977
SDD proceeding with computation,1 properties remain. new max is 16
SDD size :1977 after 1.20642e+06
Interrupted probabilistic random walk after 465464 steps, run timeout after 3001 ms. (steps per millisecond=155 ) properties seen :0 out of 1
Probabilistic random walk after 465464 steps, saw 285419 distinct states, run finished after 3004 ms. (steps per millisecond=154 ) properties seen :0
[2026-05-25 11:08:51] [INFO ] Flow matrix only has 699 transitions (discarded 535 similar events)
[2026-05-25 11:08:51] [INFO ] Invariant cache hit.
[2026-05-25 11:08:51] [INFO ] State equation strengthened by 77 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) 351/354 variables, 5/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/354 variables, 1/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/354 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (OVERLAPS) 9/363 variables, 2/9 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/363 variables, 3/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/363 variables, 0/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 609/972 variables, 340/352 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/972 variables, 76/428 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/972 variables, 0/428 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 62/1034 variables, 1/429 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/1034 variables, 0/429 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 74/1108 variables, 69/498 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/1108 variables, 0/498 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 12/1120 variables, 6/504 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/1120 variables, 0/504 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 9/1129 variables, 6/510 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/1129 variables, 0/510 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (OVERLAPS) 0/1129 variables, 0/510 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 1129/1129 variables, and 510 constraints, problems are : Problem set: 0 solved, 1 unsolved in 494 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 430/430 constraints, ReadFeed: 77/77 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) 351/354 variables, 5/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/354 variables, 1/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/354 variables, 1/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/354 variables, 0/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 9/363 variables, 2/10 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/363 variables, 3/13 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/363 variables, 0/13 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 609/972 variables, 340/353 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/972 variables, 76/429 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/972 variables, 0/429 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 62/1034 variables, 1/430 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/1034 variables, 0/430 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 74/1108 variables, 69/499 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/1108 variables, 0/499 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 12/1120 variables, 6/505 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/1120 variables, 0/505 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 9/1129 variables, 6/511 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 11:08:52] [INFO ] Deduced a trap along path composed of 3 places in 29 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 11:08:52] [INFO ] Deduced a trap along path composed of 3 places in 16 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 11:08:52] [INFO ] Deduced a trap along path composed of 3 places in 20 ms of which 0 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 11:08:53] [INFO ] Deduced a trap along path composed of 3 places in 29 ms of which 1 ms to minimize.
At refinement iteration 20 (INCLUDED_ONLY) 0/1129 variables, 4/515 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/1129 variables, 0/515 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (OVERLAPS) 0/1129 variables, 0/515 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 1129/1129 variables, and 515 constraints, problems are : Problem set: 0 solved, 1 unsolved in 845 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 430/430 constraints, ReadFeed: 77/77 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 4/4 constraints]
After SMT, in 1366ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 1 ms.
Support contains 1 out of 430 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 430/430 places, 1234/1234 transitions.
Applied a total of 0 rules in 54 ms. Remains 430 /430 variables (removed 0) and now considering 1234/1234 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 55 ms. Remains : 430/430 places, 1234/1234 transitions.
RANDOM walk for 40003 steps (8 resets) in 202 ms. (197 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (8 resets) in 82 ms. (481 steps per ms) remains 1/1 properties
SDD proceeding with computation,1 properties remain. new max is 32
SDD size :1.20642e+06 after 3.42725e+10
Interrupted probabilistic random walk after 498412 steps, run timeout after 3001 ms. (steps per millisecond=166 ) properties seen :0 out of 1
Probabilistic random walk after 498412 steps, saw 305623 distinct states, run finished after 3002 ms. (steps per millisecond=166 ) properties seen :0
[2026-05-25 11:08:56] [INFO ] Flow matrix only has 699 transitions (discarded 535 similar events)
[2026-05-25 11:08:56] [INFO ] Invariant cache hit.
[2026-05-25 11:08:56] [INFO ] State equation strengthened by 77 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) 351/354 variables, 5/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/354 variables, 1/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/354 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (OVERLAPS) 9/363 variables, 2/9 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/363 variables, 3/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/363 variables, 0/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 609/972 variables, 340/352 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/972 variables, 76/428 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/972 variables, 0/428 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 62/1034 variables, 1/429 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/1034 variables, 0/429 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 74/1108 variables, 69/498 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/1108 variables, 0/498 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 12/1120 variables, 6/504 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/1120 variables, 0/504 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 9/1129 variables, 6/510 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/1129 variables, 0/510 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (OVERLAPS) 0/1129 variables, 0/510 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 1129/1129 variables, and 510 constraints, problems are : Problem set: 0 solved, 1 unsolved in 523 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 430/430 constraints, ReadFeed: 77/77 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) 351/354 variables, 5/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/354 variables, 1/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/354 variables, 1/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/354 variables, 0/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 9/363 variables, 2/10 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/363 variables, 3/13 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/363 variables, 0/13 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 609/972 variables, 340/353 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/972 variables, 76/429 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/972 variables, 0/429 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 62/1034 variables, 1/430 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/1034 variables, 0/430 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 74/1108 variables, 69/499 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/1108 variables, 0/499 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 12/1120 variables, 6/505 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/1120 variables, 0/505 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 9/1129 variables, 6/511 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 11:08:57] [INFO ] Deduced a trap along path composed of 3 places in 15 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 11:08:57] [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 11:08:57] [INFO ] Deduced a trap along path composed of 3 places in 23 ms of which 0 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 11:08:57] [INFO ] Deduced a trap along path composed of 3 places in 30 ms of which 0 ms to minimize.
At refinement iteration 20 (INCLUDED_ONLY) 0/1129 variables, 4/515 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/1129 variables, 0/515 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (OVERLAPS) 0/1129 variables, 0/515 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 1129/1129 variables, and 515 constraints, problems are : Problem set: 0 solved, 1 unsolved in 718 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 430/430 constraints, ReadFeed: 77/77 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 4/4 constraints]
After SMT, in 1254ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 0 ms.
Support contains 1 out of 430 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 430/430 places, 1234/1234 transitions.
Applied a total of 0 rules in 54 ms. Remains 430 /430 variables (removed 0) and now considering 1234/1234 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 54 ms. Remains : 430/430 places, 1234/1234 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 430/430 places, 1234/1234 transitions.
Applied a total of 0 rules in 52 ms. Remains 430 /430 variables (removed 0) and now considering 1234/1234 (removed 0) transitions.
[2026-05-25 11:08:57] [INFO ] Flow matrix only has 699 transitions (discarded 535 similar events)
[2026-05-25 11:08:57] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 11:08:57] [INFO ] Implicit Places using invariants in 305 ms returned []
[2026-05-25 11:08:57] [INFO ] Flow matrix only has 699 transitions (discarded 535 similar events)
[2026-05-25 11:08:57] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 11:08:58] [INFO ] State equation strengthened by 77 read => feed constraints.
[2026-05-25 11:08:59] [INFO ] Implicit Places using invariants and state equation in 1488 ms returned []
Implicit Place search using SMT with State Equation took 1795 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-25 11:08:59] [INFO ] Redundant transitions in 26 ms returned []
Running 1232 sub problems to find dead transitions.
[2026-05-25 11:08:59] [INFO ] Flow matrix only has 699 transitions (discarded 535 similar events)
[2026-05-25 11:08:59] [INFO ] Invariant cache hit.
[2026-05-25 11:08:59] [INFO ] State equation strengthened by 77 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/429 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1232 unsolved
SDD proceeding with computation,1 properties remain. new max is 64
SDD size :3.42725e+10 after 4.64504e+17
At refinement iteration 1 (INCLUDED_ONLY) 0/429 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 1232 unsolved
At refinement iteration 2 (OVERLAPS) 699/1128 variables, 429/432 constraints. Problems are: Problem set: 0 solved, 1232 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/1128 variables, 77/509 constraints. Problems are: Problem set: 0 solved, 1232 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 1128/1129 variables, and 509 constraints, problems are : Problem set: 0 solved, 1232 unsolved in 30040 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 429/430 constraints, ReadFeed: 77/77 constraints, PredecessorRefiner: 1232/1232 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1232 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/429 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1232 unsolved
Detected timeout of ITS tools.
[2026-05-25 11:09:39] [INFO ] Flatten gal took : 53 ms
[2026-05-25 11:09:39] [INFO ] Applying decomposition
[2026-05-25 11:09:39] [INFO ] Flatten gal took : 61 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/graph14452974289201189168.txt' '-o' '/tmp/graph14452974289201189168.bin' '-w' '/tmp/graph14452974289201189168.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/louvain-linux64' '/tmp/graph14452974289201189168.bin' '-l' '-1' '-v' '-w' '/tmp/graph14452974289201189168.weights' '-q' '0' '-e' '0.001'
[2026-05-25 11:09:39] [INFO ] Decomposing Gal with order
[2026-05-25 11:09:39] [INFO ] Rewriting arrays to variables to allow decomposition.
[2026-05-25 11:09:40] [INFO ] Removed a total of 2120 redundant transitions.
[2026-05-25 11:09:40] [INFO ] Flatten gal took : 186 ms
[2026-05-25 11:09:40] [INFO ] Fuse similar labels procedure discarded/fused a total of 925 labels/synchronizations in 75 ms.
[2026-05-25 11:09:40] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality7320720690634410482.gal : 13 ms
[2026-05-25 11:09:40] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality16132356143959369436.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/ReachabilityCardinality7320720690634410482.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality16132356143959369436.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/ReachabilityCardinality16132356143959369436.prop.
At refinement iteration 1 (INCLUDED_ONLY) 0/429 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 1232 unsolved
At refinement iteration 2 (OVERLAPS) 699/1128 variables, 429/432 constraints. Problems are: Problem set: 0 solved, 1232 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/1128 variables, 77/509 constraints. Problems are: Problem set: 0 solved, 1232 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1128 variables, 256/765 constraints. Problems are: Problem set: 0 solved, 1232 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1128/1129 variables, and 765 constraints, problems are : Problem set: 0 solved, 1232 unsolved in 30029 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 429/430 constraints, ReadFeed: 77/77 constraints, PredecessorRefiner: 256/1232 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 61957ms problems are : Problem set: 0 solved, 1232 unsolved
Search for dead transitions found 0 dead transitions in 61965ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 63856 ms. Remains : 430/430 places, 1234/1234 transitions.
Attempting over-approximation, by ignoring read arcs.
Ensure Unique test removed 535 transitions
Reduce isomorphic transitions removed 535 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 16 transitions
Trivial Post-agglo rules discarded 16 transitions
Performed 16 trivial Post agglomeration. Transition count delta: 16
Iterating post reduction 0 with 551 rules applied. Total rules applied 551 place count 430 transition count 683
Reduce places removed 16 places and 0 transitions.
Iterating post reduction 1 with 16 rules applied. Total rules applied 567 place count 414 transition count 683
Performed 73 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 73 Pre rules applied. Total rules applied 567 place count 414 transition count 610
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 713 place count 341 transition count 610
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 967 place count 214 transition count 483
Discarding 64 places :
Symmetric choice reduction at 2 with 64 rule applications. Total rules 1031 place count 150 transition count 355
Iterating global reduction 2 with 64 rules applied. Total rules applied 1095 place count 150 transition count 355
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 2 with 1 rules applied. Total rules applied 1096 place count 150 transition count 354
Discarding 63 places :
Symmetric choice reduction at 3 with 63 rule applications. Total rules 1159 place count 87 transition count 228
Iterating global reduction 3 with 63 rules applied. Total rules applied 1222 place count 87 transition count 228
Discarding 63 places :
Symmetric choice reduction at 3 with 63 rule applications. Total rules 1285 place count 24 transition count 102
Iterating global reduction 3 with 63 rules applied. Total rules applied 1348 place count 24 transition count 102
Ensure Unique test removed 63 transitions
Reduce isomorphic transitions removed 63 transitions.
Iterating post reduction 3 with 63 rules applied. Total rules applied 1411 place count 24 transition count 39
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 4 with 1 Pre rules applied. Total rules applied 1411 place count 24 transition count 38
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 1413 place count 23 transition count 38
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 1415 place count 22 transition count 37
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 0
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 4 with 2 rules applied. Total rules applied 1417 place count 21 transition count 37
Applied a total of 1417 rules in 79 ms. Remains 21 /430 variables (removed 409) and now considering 37/1234 (removed 1197) transitions.
Running SMT prover for 1 properties.
// Phase 1: matrix 37 rows 21 cols
[2026-05-25 11:10:01] [INFO ] Computed 3 invariants in 0 ms
Starting Z3 with timeout 450.0 s and query timeout 45000.0 ms
[2026-05-25 11:10:01] [INFO ] [Real]Absence check using 3 positive place invariants in 1 ms returned sat
[2026-05-25 11:10:01] [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 11:10:01] [INFO ] [Nat]Absence check using 3 positive place invariants in 0 ms returned sat
[2026-05-25 11:10:01] [INFO ] After 7ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
[2026-05-25 11:10:01] [INFO ] State equation strengthened by 2 read => feed constraints.
[2026-05-25 11:10:01] [INFO ] After 1ms SMT Verify possible using 2 Read/Feed constraints in natural domain returned unsat :0 sat :1
TRAPS : Iteration 0
[2026-05-25 11:10:01] [INFO ] After 4ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
[2026-05-25 11:10:01] [INFO ] After 34ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
[2026-05-25 11:10:01] [INFO ] Flatten gal took : 2 ms
[2026-05-25 11:10:01] [INFO ] Flatten gal took : 3 ms
[2026-05-25 11:10:01] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality17667972658920759259.gal : 1 ms
[2026-05-25 11:10:01] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality13206878083105803042.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/ReachabilityCardinality17667972658920759259.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality13206878083105803042.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/ReachabilityCardinality13206878083105803042.prop.
SDD proceeding with computation,1 properties remain. new max is 4
SDD size :1 after 5
SDD proceeding with computation,1 properties remain. new max is 8
SDD size :5 after 10
SDD proceeding with computation,1 properties remain. new max is 16
SDD size :10 after 19
SDD proceeding with computation,1 properties remain. new max is 32
SDD size :19 after 36
SDD proceeding with computation,1 properties remain. new max is 64
SDD size :36 after 69
SDD proceeding with computation,1 properties remain. new max is 128
SDD size :69 after 759
SDD proceeding with computation,1 properties remain. new max is 256
SDD size :759 after 441230
SDD proceeding with computation,1 properties remain. new max is 512
SDD size :441230 after 6.32845e+09
SDD proceeding with computation,1 properties remain. new max is 1024
SDD size :6.32845e+09 after 5.42758e+10
SDD proceeding with computation,1 properties remain. new max is 2048
SDD size :5.42758e+10 after 2.91075e+11
Detected timeout of ITS tools.
[2026-05-25 11:10:16] [INFO ] Flatten gal took : 2 ms
[2026-05-25 11:10:16] [INFO ] Applying decomposition
[2026-05-25 11:10:16] [INFO ] Flatten gal took : 1 ms
Converted graph to binary with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/convert-linux64' '-i' '/tmp/graph2368287014407113991.txt' '-o' '/tmp/graph2368287014407113991.bin' '-w' '/tmp/graph2368287014407113991.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/louvain-linux64' '/tmp/graph2368287014407113991.bin' '-l' '-1' '-v' '-w' '/tmp/graph2368287014407113991.weights' '-q' '0' '-e' '0.001'
[2026-05-25 11:10:16] [INFO ] Decomposing Gal with order
[2026-05-25 11:10:16] [INFO ] Rewriting arrays to variables to allow decomposition.
[2026-05-25 11:10:16] [INFO ] Removed a total of 44 redundant transitions.
[2026-05-25 11:10:16] [INFO ] Flatten gal took : 5 ms
[2026-05-25 11:10:16] [INFO ] Fuse similar labels procedure discarded/fused a total of 2 labels/synchronizations in 1 ms.
[2026-05-25 11:10:16] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality3929359627704500657.gal : 1 ms
[2026-05-25 11:10:16] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality5253438324750654169.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/ReachabilityCardinality3929359627704500657.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality5253438324750654169.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/ReachabilityCardinality5253438324750654169.prop.
SDD proceeding with computation,1 properties remain. new max is 4
SDD size :1 after 5
SDD proceeding with computation,1 properties remain. new max is 8
SDD size :5 after 10
SDD proceeding with computation,1 properties remain. new max is 16
SDD size :10 after 19
SDD proceeding with computation,1 properties remain. new max is 32
SDD size :19 after 36
SDD proceeding with computation,1 properties remain. new max is 64
SDD size :36 after 69
SDD proceeding with computation,1 properties remain. new max is 128
SDD size :69 after 759
Detected timeout of ITS tools.
Detected timeout of ITS tools.
Over-approximation ignoring read arcs solved 0 properties in 30246 ms.
Current structural bounds on expressions (After reachability solving 0 queries.) : Max Seen:[7217] Max Struct:[+inf]
Starting property specific reduction for FunctionPointer-PT-c128-UpperBounds-02
Current structural bounds on expressions (Initially) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (Adding known information on max bounds.) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (Before main loop) : Max Seen:[0] Max Struct:[+inf]
[2026-05-25 11:10:31] [INFO ] Flow matrix only has 699 transitions (discarded 535 similar events)
// Phase 1: matrix 699 rows 430 cols
[2026-05-25 11:10:31] [INFO ] Computed 3 invariants in 6 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[+inf]
RANDOM walk for 10000 steps (2 resets) in 26 ms. (370 steps per ms)
BEST_FIRST walk for 10000 steps (2 resets) in 8 ms. (1111 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[13] Max Struct:[+inf]
[2026-05-25 11:10:31] [INFO ] Flow matrix only has 699 transitions (discarded 535 similar events)
[2026-05-25 11:10:31] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 11:10:31] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 11:10:32] [INFO ] [Real]Absence check using state equation in 152 ms returned sat
[2026-05-25 11:10:32] [INFO ] State equation strengthened by 77 read => feed constraints.
[2026-05-25 11:10:32] [INFO ] [Real]Added 77 Read/Feed constraints in 36 ms returned sat
[2026-05-25 11:10:32] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 11:10:32] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 11:10:32] [INFO ] [Nat]Absence check using state equation in 142 ms returned sat
[2026-05-25 11:10:32] [INFO ] [Nat]Added 77 Read/Feed constraints in 41 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 11:10:32] [INFO ] Deduced a trap composed of 70 places in 240 ms of which 26 ms to minimize.
[2026-05-25 11:10:32] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 310 ms
[2026-05-25 11:10:32] [INFO ] Computed and/alt/rep : 343/1274/336 causal constraints (skipped 361 transitions) in 73 ms.
[2026-05-25 11:10:32] [INFO ] Added : 17 causal constraints over 4 iterations in 257 ms. Result :sat
Minimization took 284 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[13] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[13] Max Struct:[+inf]
Support contains 1 out of 430 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 430/430 places, 1234/1234 transitions.
Applied a total of 0 rules in 46 ms. Remains 430 /430 variables (removed 0) and now considering 1234/1234 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 47 ms. Remains : 430/430 places, 1234/1234 transitions.
[2026-05-25 11:10:33] [INFO ] Flow matrix only has 699 transitions (discarded 535 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {235=1, 256=1, 258=1, 332=1, 660=1, 697=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {252=1, 349=1, 549=1, 694=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 97 ms. (steps per millisecond=103 ) properties (out of 1) seen :[6]
Current structural bounds on expressions (after cover walk) : Max Seen:[13] Max Struct:[+inf]
[2026-05-25 11:10:33] [INFO ] Flow matrix only has 699 transitions (discarded 535 similar events)
[2026-05-25 11:10:33] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[13] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 2631 ms. (379 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 1698 ms. (588 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[116] Max Struct:[+inf]
[2026-05-25 11:10:37] [INFO ] Flow matrix only has 699 transitions (discarded 535 similar events)
[2026-05-25 11:10:37] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:10:38] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 11:10:38] [INFO ] [Real]Absence check using state equation in 142 ms returned sat
[2026-05-25 11:10:38] [INFO ] State equation strengthened by 77 read => feed constraints.
[2026-05-25 11:10:38] [INFO ] [Real]Added 77 Read/Feed constraints in 44 ms returned sat
[2026-05-25 11:10:38] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:10:38] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 11:10:38] [INFO ] [Nat]Absence check using state equation in 135 ms returned sat
[2026-05-25 11:10:38] [INFO ] [Nat]Added 77 Read/Feed constraints in 42 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 11:10:38] [INFO ] Deduced a trap composed of 70 places in 247 ms of which 26 ms to minimize.
[2026-05-25 11:10:38] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 295 ms
[2026-05-25 11:10:38] [INFO ] Computed and/alt/rep : 343/1274/336 causal constraints (skipped 361 transitions) in 64 ms.
[2026-05-25 11:10:39] [INFO ] Added : 23 causal constraints over 6 iterations in 320 ms. Result :sat
Minimization took 259 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[116] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[116] Max Struct:[+inf]
Support contains 1 out of 430 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 430/430 places, 1234/1234 transitions.
Applied a total of 0 rules in 47 ms. Remains 430 /430 variables (removed 0) and now considering 1234/1234 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 47 ms. Remains : 430/430 places, 1234/1234 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 430/430 places, 1234/1234 transitions.
Applied a total of 0 rules in 47 ms. Remains 430 /430 variables (removed 0) and now considering 1234/1234 (removed 0) transitions.
[2026-05-25 11:10:39] [INFO ] Flow matrix only has 699 transitions (discarded 535 similar events)
[2026-05-25 11:10:39] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 11:10:39] [INFO ] Implicit Places using invariants in 296 ms returned []
[2026-05-25 11:10:39] [INFO ] Flow matrix only has 699 transitions (discarded 535 similar events)
[2026-05-25 11:10:39] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 11:10:39] [INFO ] State equation strengthened by 77 read => feed constraints.
[2026-05-25 11:10:41] [INFO ] Implicit Places using invariants and state equation in 1526 ms returned []
Implicit Place search using SMT with State Equation took 1825 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-25 11:10:41] [INFO ] Redundant transitions in 27 ms returned []
Running 1232 sub problems to find dead transitions.
[2026-05-25 11:10:41] [INFO ] Flow matrix only has 699 transitions (discarded 535 similar events)
[2026-05-25 11:10:41] [INFO ] Invariant cache hit.
[2026-05-25 11:10:41] [INFO ] State equation strengthened by 77 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/429 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1232 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/429 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 1232 unsolved
At refinement iteration 2 (OVERLAPS) 699/1128 variables, 429/432 constraints. Problems are: Problem set: 0 solved, 1232 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/1128 variables, 77/509 constraints. Problems are: Problem set: 0 solved, 1232 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 1128/1129 variables, and 509 constraints, problems are : Problem set: 0 solved, 1232 unsolved in 30029 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 429/430 constraints, ReadFeed: 77/77 constraints, PredecessorRefiner: 1232/1232 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1232 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/429 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1232 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/429 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 1232 unsolved
At refinement iteration 2 (OVERLAPS) 699/1128 variables, 429/432 constraints. Problems are: Problem set: 0 solved, 1232 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/1128 variables, 77/509 constraints. Problems are: Problem set: 0 solved, 1232 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1128 variables, 256/765 constraints. Problems are: Problem set: 0 solved, 1232 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1128/1129 variables, and 765 constraints, problems are : Problem set: 0 solved, 1232 unsolved in 30029 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 429/430 constraints, ReadFeed: 77/77 constraints, PredecessorRefiner: 256/1232 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 61780ms problems are : Problem set: 0 solved, 1232 unsolved
Search for dead transitions found 0 dead transitions in 61783ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 63690 ms. Remains : 430/430 places, 1234/1234 transitions.
[2026-05-25 11:11:43] [INFO ] Flow matrix only has 699 transitions (discarded 535 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {235=1, 256=1, 258=1, 332=1, 660=1, 697=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {252=1, 349=1, 549=1, 694=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 94 ms. (steps per millisecond=106 ) properties (out of 1) seen :[7]
Current structural bounds on expressions (after cover walk) : Max Seen:[116] Max Struct:[+inf]
[2026-05-25 11:11:43] [INFO ] Flow matrix only has 699 transitions (discarded 535 similar events)
[2026-05-25 11:11:43] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[116] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 2509 ms. (398 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 1656 ms. (603 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[117] Max Struct:[+inf]
[2026-05-25 11:11:47] [INFO ] Flow matrix only has 699 transitions (discarded 535 similar events)
[2026-05-25 11:11:47] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:11:47] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 11:11:47] [INFO ] [Real]Absence check using state equation in 151 ms returned sat
[2026-05-25 11:11:47] [INFO ] State equation strengthened by 77 read => feed constraints.
[2026-05-25 11:11:47] [INFO ] [Real]Added 77 Read/Feed constraints in 43 ms returned sat
[2026-05-25 11:11:47] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:11:48] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 11:11:48] [INFO ] [Nat]Absence check using state equation in 137 ms returned sat
[2026-05-25 11:11:48] [INFO ] [Nat]Added 77 Read/Feed constraints in 48 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 11:11:48] [INFO ] Deduced a trap composed of 70 places in 220 ms of which 25 ms to minimize.
[2026-05-25 11:11:48] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 269 ms
[2026-05-25 11:11:48] [INFO ] Computed and/alt/rep : 343/1274/336 causal constraints (skipped 361 transitions) in 63 ms.
[2026-05-25 11:11:48] [INFO ] Added : 23 causal constraints over 6 iterations in 354 ms. Result :sat
Minimization took 261 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[117] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[117] Max Struct:[+inf]
Support contains 1 out of 430 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 430/430 places, 1234/1234 transitions.
Applied a total of 0 rules in 46 ms. Remains 430 /430 variables (removed 0) and now considering 1234/1234 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 47 ms. Remains : 430/430 places, 1234/1234 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 430/430 places, 1234/1234 transitions.
Applied a total of 0 rules in 45 ms. Remains 430 /430 variables (removed 0) and now considering 1234/1234 (removed 0) transitions.
[2026-05-25 11:11:49] [INFO ] Flow matrix only has 699 transitions (discarded 535 similar events)
[2026-05-25 11:11:49] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 11:11:49] [INFO ] Implicit Places using invariants in 290 ms returned []
[2026-05-25 11:11:49] [INFO ] Flow matrix only has 699 transitions (discarded 535 similar events)
[2026-05-25 11:11:49] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 11:11:49] [INFO ] State equation strengthened by 77 read => feed constraints.
[2026-05-25 11:11:51] [INFO ] Implicit Places using invariants and state equation in 1521 ms returned []
Implicit Place search using SMT with State Equation took 1821 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-25 11:11:51] [INFO ] Redundant transitions in 29 ms returned []
Running 1232 sub problems to find dead transitions.
[2026-05-25 11:11:51] [INFO ] Flow matrix only has 699 transitions (discarded 535 similar events)
[2026-05-25 11:11:51] [INFO ] Invariant cache hit.
[2026-05-25 11:11:51] [INFO ] State equation strengthened by 77 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/429 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1232 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/429 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 1232 unsolved
At refinement iteration 2 (OVERLAPS) 699/1128 variables, 429/432 constraints. Problems are: Problem set: 0 solved, 1232 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/1128 variables, 77/509 constraints. Problems are: Problem set: 0 solved, 1232 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 1128/1129 variables, and 509 constraints, problems are : Problem set: 0 solved, 1232 unsolved in 30035 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 429/430 constraints, ReadFeed: 77/77 constraints, PredecessorRefiner: 1232/1232 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1232 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/429 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1232 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/429 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 1232 unsolved
At refinement iteration 2 (OVERLAPS) 699/1128 variables, 429/432 constraints. Problems are: Problem set: 0 solved, 1232 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/1128 variables, 77/509 constraints. Problems are: Problem set: 0 solved, 1232 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1128 variables, 256/765 constraints. Problems are: Problem set: 0 solved, 1232 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1128/1129 variables, and 765 constraints, problems are : Problem set: 0 solved, 1232 unsolved in 30036 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 429/430 constraints, ReadFeed: 77/77 constraints, PredecessorRefiner: 256/1232 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 61628ms problems are : Problem set: 0 solved, 1232 unsolved
Search for dead transitions found 0 dead transitions in 61631ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 63535 ms. Remains : 430/430 places, 1234/1234 transitions.
[2026-05-25 11:12:52] [INFO ] Flow matrix only has 699 transitions (discarded 535 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {235=1, 256=1, 258=1, 332=1, 660=1, 697=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {252=1, 349=1, 549=1, 694=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 93 ms. (steps per millisecond=107 ) properties (out of 1) seen :[9]
Current structural bounds on expressions (after cover walk) : Max Seen:[117] Max Struct:[+inf]
[2026-05-25 11:12:53] [INFO ] Flow matrix only has 699 transitions (discarded 535 similar events)
[2026-05-25 11:12:53] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[117] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 2640 ms. (378 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 1676 ms. (596 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[117] Max Struct:[+inf]
[2026-05-25 11:12:57] [INFO ] Flow matrix only has 699 transitions (discarded 535 similar events)
[2026-05-25 11:12:57] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:12:57] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 11:12:57] [INFO ] [Real]Absence check using state equation in 147 ms returned sat
[2026-05-25 11:12:57] [INFO ] State equation strengthened by 77 read => feed constraints.
[2026-05-25 11:12:57] [INFO ] [Real]Added 77 Read/Feed constraints in 41 ms returned sat
[2026-05-25 11:12:57] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 11:12:57] [INFO ] [Nat]Absence check using 3 positive place invariants in 6 ms returned sat
[2026-05-25 11:12:57] [INFO ] [Nat]Absence check using state equation in 157 ms returned sat
[2026-05-25 11:12:57] [INFO ] [Nat]Added 77 Read/Feed constraints in 47 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 11:12:58] [INFO ] Deduced a trap composed of 70 places in 231 ms of which 27 ms to minimize.
[2026-05-25 11:12:58] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 279 ms
[2026-05-25 11:12:58] [INFO ] Computed and/alt/rep : 343/1274/336 causal constraints (skipped 361 transitions) in 67 ms.
[2026-05-25 11:12:58] [INFO ] Added : 23 causal constraints over 6 iterations in 344 ms. Result :sat
Minimization took 261 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[117] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[117] Max Struct:[+inf]
Support contains 1 out of 430 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 430/430 places, 1234/1234 transitions.
Applied a total of 0 rules in 53 ms. Remains 430 /430 variables (removed 0) and now considering 1234/1234 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 53 ms. Remains : 430/430 places, 1234/1234 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 430/430 places, 1234/1234 transitions.
Applied a total of 0 rules in 46 ms. Remains 430 /430 variables (removed 0) and now considering 1234/1234 (removed 0) transitions.
[2026-05-25 11:12:58] [INFO ] Flow matrix only has 699 transitions (discarded 535 similar events)
[2026-05-25 11:12:58] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 11:12:59] [INFO ] Implicit Places using invariants in 290 ms returned []
[2026-05-25 11:12:59] [INFO ] Flow matrix only has 699 transitions (discarded 535 similar events)
[2026-05-25 11:12:59] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 11:12:59] [INFO ] State equation strengthened by 77 read => feed constraints.
[2026-05-25 11:13:00] [INFO ] Implicit Places using invariants and state equation in 1510 ms returned []
Implicit Place search using SMT with State Equation took 1802 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-25 11:13:00] [INFO ] Redundant transitions in 31 ms returned []
Running 1232 sub problems to find dead transitions.
[2026-05-25 11:13:00] [INFO ] Flow matrix only has 699 transitions (discarded 535 similar events)
[2026-05-25 11:13:00] [INFO ] Invariant cache hit.
[2026-05-25 11:13:00] [INFO ] State equation strengthened by 77 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/429 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1232 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/429 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 1232 unsolved
At refinement iteration 2 (OVERLAPS) 699/1128 variables, 429/432 constraints. Problems are: Problem set: 0 solved, 1232 unsolved
Error getting values : (error "ParserException while parsing response: (timeout
org.smtlib.IParser$ParserException: Unbalanced parentheses at end of input")
At refinement iteration 3 (INCLUDED_ONLY) 0/1128 variables, 77/509 constraints. Problems are: Problem set: 0 solved, 1232 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 1128/1129 variables, and 509 constraints, problems are : Problem set: 0 solved, 1232 unsolved in 30031 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 429/430 constraints, ReadFeed: 77/77 constraints, PredecessorRefiner: 1232/1232 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1232 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/429 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1232 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/429 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 1232 unsolved
At refinement iteration 2 (OVERLAPS) 699/1128 variables, 429/432 constraints. Problems are: Problem set: 0 solved, 1232 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/1128 variables, 77/509 constraints. Problems are: Problem set: 0 solved, 1232 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1128 variables, 256/765 constraints. Problems are: Problem set: 0 solved, 1232 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1128/1129 variables, and 765 constraints, problems are : Problem set: 0 solved, 1232 unsolved in 30033 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 429/430 constraints, ReadFeed: 77/77 constraints, PredecessorRefiner: 256/1232 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 61650ms problems are : Problem set: 0 solved, 1232 unsolved
Search for dead transitions found 0 dead transitions in 61652ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 63539 ms. Remains : 430/430 places, 1234/1234 transitions.
[2026-05-25 11:14:02] [INFO ] Flow matrix only has 699 transitions (discarded 535 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {235=1, 256=1, 258=1, 332=1, 660=1, 697=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {252=1, 349=1, 549=1, 694=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 91 ms. (steps per millisecond=109 ) properties (out of 1) seen :[8]
Current structural bounds on expressions (after cover walk) : Max Seen:[117] Max Struct:[+inf]
RANDOM walk for 40009 steps (8 resets) in 132 ms. (300 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (8 resets) in 50 ms. (784 steps per ms) remains 1/1 properties
[2026-05-25 11:14:02] [INFO ] Flatten gal took : 81 ms
[2026-05-25 11:14:02] [INFO ] Flatten gal took : 38 ms
[2026-05-25 11:14:02] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality7570136085492437693.gal : 8 ms
[2026-05-25 11:14:02] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality13786898672087658515.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/ReachabilityCardinality7570136085492437693.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality13786898672087658515.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/ReachabilityCardinality13786898672087658515.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 1977
SDD proceeding with computation,1 properties remain. new max is 16
SDD size :1977 after 1.20642e+06
Interrupted probabilistic random walk after 473241 steps, run timeout after 3001 ms. (steps per millisecond=157 ) properties seen :0 out of 1
Probabilistic random walk after 473241 steps, saw 290189 distinct states, run finished after 3001 ms. (steps per millisecond=157 ) properties seen :0
[2026-05-25 11:14:05] [INFO ] Flow matrix only has 699 transitions (discarded 535 similar events)
[2026-05-25 11:14:05] [INFO ] Invariant cache hit.
[2026-05-25 11:14:05] [INFO ] State equation strengthened by 77 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) 351/354 variables, 5/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/354 variables, 1/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/354 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (OVERLAPS) 9/363 variables, 2/9 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/363 variables, 3/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/363 variables, 0/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 609/972 variables, 340/352 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/972 variables, 76/428 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/972 variables, 0/428 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 62/1034 variables, 1/429 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/1034 variables, 0/429 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 74/1108 variables, 69/498 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/1108 variables, 0/498 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 12/1120 variables, 6/504 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/1120 variables, 0/504 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 9/1129 variables, 6/510 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/1129 variables, 0/510 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (OVERLAPS) 0/1129 variables, 0/510 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 1129/1129 variables, and 510 constraints, problems are : Problem set: 0 solved, 1 unsolved in 488 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 430/430 constraints, ReadFeed: 77/77 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) 351/354 variables, 5/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/354 variables, 1/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/354 variables, 1/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/354 variables, 0/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 9/363 variables, 2/10 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/363 variables, 3/13 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/363 variables, 0/13 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 609/972 variables, 340/353 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/972 variables, 76/429 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/972 variables, 0/429 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 62/1034 variables, 1/430 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/1034 variables, 0/430 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 74/1108 variables, 69/499 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/1108 variables, 0/499 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 12/1120 variables, 6/505 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/1120 variables, 0/505 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 9/1129 variables, 6/511 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/1129 variables, 0/511 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 0/1129 variables, 0/511 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 1129/1129 variables, and 511 constraints, problems are : Problem set: 0 solved, 1 unsolved in 447 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 430/430 constraints, ReadFeed: 77/77 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 958ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 0 ms.
Support contains 1 out of 430 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 430/430 places, 1234/1234 transitions.
Applied a total of 0 rules in 49 ms. Remains 430 /430 variables (removed 0) and now considering 1234/1234 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 50 ms. Remains : 430/430 places, 1234/1234 transitions.
RANDOM walk for 40005 steps (8 resets) in 220 ms. (181 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (8 resets) in 35 ms. (1111 steps per ms) remains 1/1 properties
SDD proceeding with computation,1 properties remain. new max is 32
SDD size :1.20642e+06 after 3.42725e+10
Interrupted probabilistic random walk after 504803 steps, run timeout after 3001 ms. (steps per millisecond=168 ) properties seen :0 out of 1
Probabilistic random walk after 504803 steps, saw 309539 distinct states, run finished after 3001 ms. (steps per millisecond=168 ) properties seen :0
[2026-05-25 11:14:09] [INFO ] Flow matrix only has 699 transitions (discarded 535 similar events)
[2026-05-25 11:14:09] [INFO ] Invariant cache hit.
[2026-05-25 11:14:10] [INFO ] State equation strengthened by 77 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) 351/354 variables, 5/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/354 variables, 1/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/354 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (OVERLAPS) 9/363 variables, 2/9 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/363 variables, 3/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/363 variables, 0/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 609/972 variables, 340/352 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/972 variables, 76/428 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/972 variables, 0/428 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 62/1034 variables, 1/429 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/1034 variables, 0/429 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 74/1108 variables, 69/498 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/1108 variables, 0/498 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 12/1120 variables, 6/504 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/1120 variables, 0/504 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 9/1129 variables, 6/510 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/1129 variables, 0/510 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (OVERLAPS) 0/1129 variables, 0/510 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 1129/1129 variables, and 510 constraints, problems are : Problem set: 0 solved, 1 unsolved in 406 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 430/430 constraints, ReadFeed: 77/77 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) 351/354 variables, 5/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/354 variables, 1/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/354 variables, 1/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/354 variables, 0/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 9/363 variables, 2/10 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/363 variables, 3/13 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/363 variables, 0/13 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 609/972 variables, 340/353 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/972 variables, 76/429 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/972 variables, 0/429 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 62/1034 variables, 1/430 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/1034 variables, 0/430 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 74/1108 variables, 69/499 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/1108 variables, 0/499 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 12/1120 variables, 6/505 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/1120 variables, 0/505 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 9/1129 variables, 6/511 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/1129 variables, 0/511 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 0/1129 variables, 0/511 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 1129/1129 variables, and 511 constraints, problems are : Problem set: 0 solved, 1 unsolved in 466 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 430/430 constraints, ReadFeed: 77/77 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 882ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 2 ms.
Support contains 1 out of 430 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 430/430 places, 1234/1234 transitions.
Applied a total of 0 rules in 47 ms. Remains 430 /430 variables (removed 0) and now considering 1234/1234 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 48 ms. Remains : 430/430 places, 1234/1234 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 430/430 places, 1234/1234 transitions.
Applied a total of 0 rules in 53 ms. Remains 430 /430 variables (removed 0) and now considering 1234/1234 (removed 0) transitions.
[2026-05-25 11:14:10] [INFO ] Flow matrix only has 699 transitions (discarded 535 similar events)
[2026-05-25 11:14:10] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 11:14:11] [INFO ] Implicit Places using invariants in 265 ms returned []
[2026-05-25 11:14:11] [INFO ] Flow matrix only has 699 transitions (discarded 535 similar events)
[2026-05-25 11:14:11] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 11:14:11] [INFO ] State equation strengthened by 77 read => feed constraints.
[2026-05-25 11:14:12] [INFO ] Implicit Places using invariants and state equation in 1502 ms returned []
Implicit Place search using SMT with State Equation took 1779 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-25 11:14:12] [INFO ] Redundant transitions in 20 ms returned []
Running 1232 sub problems to find dead transitions.
[2026-05-25 11:14:12] [INFO ] Flow matrix only has 699 transitions (discarded 535 similar events)
[2026-05-25 11:14:12] [INFO ] Invariant cache hit.
[2026-05-25 11:14:12] [INFO ] State equation strengthened by 77 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/429 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1232 unsolved
SDD proceeding with computation,1 properties remain. new max is 64
SDD size :3.42725e+10 after 4.64504e+17
At refinement iteration 1 (INCLUDED_ONLY) 0/429 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 1232 unsolved
At refinement iteration 2 (OVERLAPS) 699/1128 variables, 429/432 constraints. Problems are: Problem set: 0 solved, 1232 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/1128 variables, 77/509 constraints. Problems are: Problem set: 0 solved, 1232 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 1128/1129 variables, and 509 constraints, problems are : Problem set: 0 solved, 1232 unsolved in 30028 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 429/430 constraints, ReadFeed: 77/77 constraints, PredecessorRefiner: 1232/1232 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1232 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/429 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1232 unsolved
Detected timeout of ITS tools.
[2026-05-25 11:14:53] [INFO ] Flatten gal took : 36 ms
[2026-05-25 11:14:53] [INFO ] Applying decomposition
[2026-05-25 11:14:53] [INFO ] Flatten gal took : 48 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/graph5899078549647178370.txt' '-o' '/tmp/graph5899078549647178370.bin' '-w' '/tmp/graph5899078549647178370.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/louvain-linux64' '/tmp/graph5899078549647178370.bin' '-l' '-1' '-v' '-w' '/tmp/graph5899078549647178370.weights' '-q' '0' '-e' '0.001'
[2026-05-25 11:14:53] [INFO ] Decomposing Gal with order
[2026-05-25 11:14:53] [INFO ] Rewriting arrays to variables to allow decomposition.
[2026-05-25 11:14:53] [INFO ] Removed a total of 2115 redundant transitions.
[2026-05-25 11:14:53] [INFO ] Flatten gal took : 85 ms
[2026-05-25 11:14:53] [INFO ] Fuse similar labels procedure discarded/fused a total of 899 labels/synchronizations in 68 ms.
[2026-05-25 11:14:53] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality16981299064743896000.gal : 6 ms
[2026-05-25 11:14:53] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality15048026909482317985.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/ReachabilityCardinality16981299064743896000.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality15048026909482317985.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/ReachabilityCardinality15048026909482317985.prop.
At refinement iteration 1 (INCLUDED_ONLY) 0/429 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 1232 unsolved
At refinement iteration 2 (OVERLAPS) 699/1128 variables, 429/432 constraints. Problems are: Problem set: 0 solved, 1232 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/1128 variables, 77/509 constraints. Problems are: Problem set: 0 solved, 1232 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1128 variables, 256/765 constraints. Problems are: Problem set: 0 solved, 1232 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 Int declared 1128/1129 variables, and 765 constraints, problems are : Problem set: 0 solved, 1232 unsolved in 30040 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 429/430 constraints, ReadFeed: 77/77 constraints, PredecessorRefiner: 256/1232 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 62159ms problems are : Problem set: 0 solved, 1232 unsolved
Search for dead transitions found 0 dead transitions in 62161ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 64020 ms. Remains : 430/430 places, 1234/1234 transitions.
Attempting over-approximation, by ignoring read arcs.
Ensure Unique test removed 535 transitions
Reduce isomorphic transitions removed 535 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 16 transitions
Trivial Post-agglo rules discarded 16 transitions
Performed 16 trivial Post agglomeration. Transition count delta: 16
Iterating post reduction 0 with 551 rules applied. Total rules applied 551 place count 430 transition count 683
Reduce places removed 16 places and 0 transitions.
Iterating post reduction 1 with 16 rules applied. Total rules applied 567 place count 414 transition count 683
Performed 73 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 73 Pre rules applied. Total rules applied 567 place count 414 transition count 610
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 713 place count 341 transition count 610
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 967 place count 214 transition count 483
Discarding 64 places :
Symmetric choice reduction at 2 with 64 rule applications. Total rules 1031 place count 150 transition count 355
Iterating global reduction 2 with 64 rules applied. Total rules applied 1095 place count 150 transition count 355
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 2 with 1 rules applied. Total rules applied 1096 place count 150 transition count 354
Discarding 63 places :
Symmetric choice reduction at 3 with 63 rule applications. Total rules 1159 place count 87 transition count 228
Iterating global reduction 3 with 63 rules applied. Total rules applied 1222 place count 87 transition count 228
Discarding 63 places :
Symmetric choice reduction at 3 with 63 rule applications. Total rules 1285 place count 24 transition count 102
Iterating global reduction 3 with 63 rules applied. Total rules applied 1348 place count 24 transition count 102
Ensure Unique test removed 63 transitions
Reduce isomorphic transitions removed 63 transitions.
Iterating post reduction 3 with 63 rules applied. Total rules applied 1411 place count 24 transition count 39
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 4 with 1 Pre rules applied. Total rules applied 1411 place count 24 transition count 38
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 1413 place count 23 transition count 38
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 1415 place count 22 transition count 37
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 0
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 4 with 2 rules applied. Total rules applied 1417 place count 21 transition count 37
Applied a total of 1417 rules in 108 ms. Remains 21 /430 variables (removed 409) and now considering 37/1234 (removed 1197) transitions.
Running SMT prover for 1 properties.
// Phase 1: matrix 37 rows 21 cols
[2026-05-25 11:15:15] [INFO ] Computed 3 invariants in 1 ms
Starting Z3 with timeout 450.0 s and query timeout 45000.0 ms
[2026-05-25 11:15:15] [INFO ] [Real]Absence check using 3 positive place invariants in 1 ms returned sat
[2026-05-25 11:15:15] [INFO ] After 86ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
Starting Z3 with timeout 450.0 s and query timeout 45000.0 ms
[2026-05-25 11:15:15] [INFO ] [Nat]Absence check using 3 positive place invariants in 12 ms returned sat
[2026-05-25 11:15:15] [INFO ] After 9ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
[2026-05-25 11:15:15] [INFO ] State equation strengthened by 2 read => feed constraints.
[2026-05-25 11:15:15] [INFO ] After 32ms SMT Verify possible using 2 Read/Feed constraints in natural domain returned unsat :0 sat :1
TRAPS : Iteration 0
[2026-05-25 11:15:15] [INFO ] After 98ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
[2026-05-25 11:15:15] [INFO ] After 212ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
[2026-05-25 11:15:15] [INFO ] Flatten gal took : 6 ms
[2026-05-25 11:15:15] [INFO ] Flatten gal took : 1 ms
[2026-05-25 11:15:15] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality12766845106203989181.gal : 1 ms
[2026-05-25 11:15:15] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality15321367435080306366.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/ReachabilityCardinality12766845106203989181.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality15321367435080306366.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/ReachabilityCardinality15321367435080306366.prop.
SDD proceeding with computation,1 properties remain. new max is 4
SDD size :1 after 5
SDD proceeding with computation,1 properties remain. new max is 8
SDD size :5 after 10
SDD proceeding with computation,1 properties remain. new max is 16
SDD size :10 after 19
SDD proceeding with computation,1 properties remain. new max is 32
SDD size :19 after 36
SDD proceeding with computation,1 properties remain. new max is 64
SDD size :36 after 69
SDD proceeding with computation,1 properties remain. new max is 128
SDD size :69 after 759
SDD proceeding with computation,1 properties remain. new max is 256
SDD size :759 after 441230
SDD proceeding with computation,1 properties remain. new max is 512
SDD size :441230 after 6.32845e+09
SDD proceeding with computation,1 properties remain. new max is 1024
SDD size :6.32845e+09 after 5.42758e+10
SDD proceeding with computation,1 properties remain. new max is 2048
SDD size :5.42758e+10 after 2.91075e+11
Detected timeout of ITS tools.
[2026-05-25 11:15:30] [INFO ] Flatten gal took : 3 ms
[2026-05-25 11:15:30] [INFO ] Applying decomposition
[2026-05-25 11:15:30] [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/graph16332693561019921672.txt' '-o' '/tmp/graph16332693561019921672.bin' '-w' '/tmp/graph16332693561019921672.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/louvain-linux64' '/tmp/graph16332693561019921672.bin' '-l' '-1' '-v' '-w' '/tmp/graph16332693561019921672.weights' '-q' '0' '-e' '0.001'
[2026-05-25 11:15:30] [INFO ] Decomposing Gal with order
[2026-05-25 11:15:30] [INFO ] Rewriting arrays to variables to allow decomposition.
[2026-05-25 11:15:30] [INFO ] Removed a total of 44 redundant transitions.
[2026-05-25 11:15:30] [INFO ] Flatten gal took : 23 ms
[2026-05-25 11:15:30] [INFO ] Fuse similar labels procedure discarded/fused a total of 2 labels/synchronizations in 0 ms.
[2026-05-25 11:15:30] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality361700054107643239.gal : 1 ms
[2026-05-25 11:15:30] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality11554884287418512020.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/ReachabilityCardinality361700054107643239.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality11554884287418512020.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/ReachabilityCardinality11554884287418512020.prop.
SDD proceeding with computation,1 properties remain. new max is 4
SDD size :1 after 5
SDD proceeding with computation,1 properties remain. new max is 8
SDD size :5 after 10
SDD proceeding with computation,1 properties remain. new max is 16
SDD size :10 after 19
SDD proceeding with computation,1 properties remain. new max is 32
SDD size :19 after 36
SDD proceeding with computation,1 properties remain. new max is 64
SDD size :36 after 69
SDD proceeding with computation,1 properties remain. new max is 128
SDD size :69 after 759
Detected timeout of ITS tools.
Detected timeout of ITS tools.
Over-approximation ignoring read arcs solved 0 properties in 30612 ms.
Current structural bounds on expressions (After reachability solving 0 queries.) : Max Seen:[117] Max Struct:[+inf]
Ending property specific reduction for FunctionPointer-PT-c128-UpperBounds-02 in 313826 ms.
[2026-05-25 11:15:45] [INFO ] Flatten gal took : 32 ms
[2026-05-25 11:15:45] [INFO ] Applying decomposition
[2026-05-25 11:15:45] [INFO ] Flatten gal took : 32 ms
Converted graph to binary with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/convert-linux64' '-i' '/tmp/graph11626155059843670426.txt' '-o' '/tmp/graph11626155059843670426.bin' '-w' '/tmp/graph11626155059843670426.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/louvain-linux64' '/tmp/graph11626155059843670426.bin' '-l' '-1' '-v' '-w' '/tmp/graph11626155059843670426.weights' '-q' '0' '-e' '0.001'
[2026-05-25 11:15:45] [INFO ] Decomposing Gal with order
[2026-05-25 11:15:45] [INFO ] Rewriting arrays to variables to allow decomposition.
[2026-05-25 11:15:45] [INFO ] Removed a total of 2114 redundant transitions.
[2026-05-25 11:15:45] [INFO ] Flatten gal took : 96 ms
[2026-05-25 11:15:45] [INFO ] Fuse similar labels procedure discarded/fused a total of 909 labels/synchronizations in 46 ms.
[2026-05-25 11:15:45] [INFO ] Time to serialize gal into /tmp/UpperBounds7778049502687729193.gal : 6 ms
[2026-05-25 11:15:45] [INFO ] Time to serialize properties into /tmp/UpperBounds12079377271139752696.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/UpperBounds7778049502687729193.gal' '-t' 'CGAL' '-reachable-file' '/tmp/UpperBounds12079377271139752696.prop' '--nowitness'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...284
Loading property file /tmp/UpperBounds12079377271139752696.prop.
Detected timeout of ITS tools.
[2026-05-25 11:38:34] [INFO ] Flatten gal took : 32 ms
[2026-05-25 11:38:34] [INFO ] Time to serialize gal into /tmp/UpperBounds4266371614941967142.gal : 5 ms
[2026-05-25 11:38:34] [INFO ] Time to serialize properties into /tmp/UpperBounds14419145429412283006.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/UpperBounds4266371614941967142.gal' '-t' 'CGAL' '-reachable-file' '/tmp/UpperBounds14419145429412283006.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 ...305
Loading property file /tmp/UpperBounds14419145429412283006.prop.
Detected timeout of ITS tools.
[2026-05-25 12:01:25] [INFO ] Flatten gal took : 326 ms
[2026-05-25 12:01:26] [INFO ] Input system was already deterministic with 1234 transitions.
[2026-05-25 12:01:26] [INFO ] Transformed 430 places.
[2026-05-25 12:01:26] [INFO ] Transformed 1234 transitions.
Running greatSPN : cd /home/mcc/execution;'/home/mcc/BenchKit/bin//../itstools/bin//..//greatspn//bin/pinvar' '/home/mcc/execution/gspn'
Run of greatSPN captured in /home/mcc/execution/outPut.txt
Running greatSPN : cd /home/mcc/execution;'/home/mcc/BenchKit/bin//../itstools/bin//..//greatspn//bin/RGMEDD2' '/home/mcc/execution/gspn' '-META' '-varord-only'
Run of greatSPN captured in /home/mcc/execution/outPut.txt
Using order generated by GreatSPN with heuristic : META
[2026-05-25 12:01:26] [INFO ] Time to serialize gal into /tmp/UpperBounds18421156426045325195.gal : 19 ms
[2026-05-25 12:01:26] [INFO ] Time to serialize properties into /tmp/UpperBounds594560968583228998.prop : 10 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/UpperBounds18421156426045325195.gal' '-t' 'CGAL' '-reachable-file' '/tmp/UpperBounds594560968583228998.prop' '--nowitness' '--load-order' '/home/mcc/execution/model.ord' '--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 ...349
Successfully loaded order from file /home/mcc/execution/model.ord
Loading property file /tmp/UpperBounds594560968583228998.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-c128"
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-c128, 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-177961079800021"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/FunctionPointer-PT-c128.tgz
mv FunctionPointer-PT-c128 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 ;