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-177961079800016.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-c004, examination is UpperBounds
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r159-tall-177961079800016
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 4.6M
-rw-r--r-- 1 mcc users 8.3K Mar 7 07:31 CTLCardinality.txt
-rw-r--r-- 1 mcc users 91K Mar 7 07:31 CTLCardinality.xml
-rw-r--r-- 1 mcc users 6.5K Mar 7 07:31 CTLFireability.txt
-rw-r--r-- 1 mcc users 61K Mar 7 07:31 CTLFireability.xml
-rw-r--r-- 1 mcc users 3.9K Mar 15 10:25 LTLCardinality.txt
-rw-r--r-- 1 mcc users 27K Mar 15 10:25 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.4K Mar 15 10:25 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K Mar 15 10:25 LTLFireability.xml
-rw-r--r-- 1 mcc users 7.4K Mar 7 07:31 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 69K Mar 7 07:31 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 9.7K Mar 7 07:31 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 82K Mar 7 07:31 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K Mar 15 10:25 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.8K Mar 15 10:25 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 equiv_col
-rw-r--r-- 1 mcc users 5 Mar 3 18:30 instance
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 iscolored
-rw-r--r-- 1 mcc users 4.2M Mar 3 18:30 model.pnml

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

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

The expected result is a vector of positive values
NUM_VECTOR

echo here is the order used to build the result vector(from xml file)
FORMULA_NAME FunctionPointer-PT-c004-UpperBounds-00
FORMULA_NAME FunctionPointer-PT-c004-UpperBounds-01
FORMULA_NAME FunctionPointer-PT-c004-UpperBounds-02
FORMULA_NAME FunctionPointer-PT-c004-UpperBounds-03
FORMULA_NAME FunctionPointer-PT-c004-UpperBounds-04
FORMULA_NAME FunctionPointer-PT-c004-UpperBounds-05
FORMULA_NAME FunctionPointer-PT-c004-UpperBounds-06
FORMULA_NAME FunctionPointer-PT-c004-UpperBounds-07
FORMULA_NAME FunctionPointer-PT-c004-UpperBounds-08
FORMULA_NAME FunctionPointer-PT-c004-UpperBounds-09
FORMULA_NAME FunctionPointer-PT-c004-UpperBounds-10
FORMULA_NAME FunctionPointer-PT-c004-UpperBounds-11
FORMULA_NAME FunctionPointer-PT-c004-UpperBounds-12
FORMULA_NAME FunctionPointer-PT-c004-UpperBounds-13
FORMULA_NAME FunctionPointer-PT-c004-UpperBounds-14
FORMULA_NAME FunctionPointer-PT-c004-UpperBounds-15

=== Now, execution of the tool begins

BK_START 1779703559022

Invoking MCC driver with
GOLD_TOOL=
BK_EXAMINATION=UpperBounds
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=FunctionPointer-PT-c004
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
UpperBounds PT
Running Version 202505121319
[2026-05-25 10:06:00] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, UpperBounds, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2026-05-25 10:06:00] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-25 10:06:00] [INFO ] Load time of PNML (sax parser for PT used): 367 ms
[2026-05-25 10:06:00] [INFO ] Transformed 2826 places.
[2026-05-25 10:06:00] [INFO ] Transformed 8960 transitions.
[2026-05-25 10:06:00] [INFO ] Parsed PT model containing 2826 places and 8960 transitions and 36096 arcs in 502 ms.
Parsed 16 properties from file /home/mcc/execution/UpperBounds.xml in 8 ms.
Deduced a syphon composed of 1198 places in 46 ms
Reduce places removed 1198 places and 2998 transitions.
FORMULA FunctionPointer-PT-c004-UpperBounds-01 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA FunctionPointer-PT-c004-UpperBounds-03 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA FunctionPointer-PT-c004-UpperBounds-04 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA FunctionPointer-PT-c004-UpperBounds-05 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA FunctionPointer-PT-c004-UpperBounds-06 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA FunctionPointer-PT-c004-UpperBounds-07 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA FunctionPointer-PT-c004-UpperBounds-08 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA FunctionPointer-PT-c004-UpperBounds-09 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA FunctionPointer-PT-c004-UpperBounds-10 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA FunctionPointer-PT-c004-UpperBounds-12 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
Current structural bounds on expressions (Initially) : Max Seen:[0, 0, 0, 0, 0, 0] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (Before main loop) : Max Seen:[0, 0, 0, 0, 0, 0] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
[2026-05-25 10:06:00] [INFO ] Flow matrix only has 3540 transitions (discarded 2422 similar events)
// Phase 1: matrix 3540 rows 1628 cols
[2026-05-25 10:06:01] [INFO ] Computed 4 invariants in 114 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0, 0, 0, 0, 0, 0] Max Struct:[1, +inf, +inf, 1, +inf, +inf]
RANDOM walk for 10000 steps (2 resets) in 495 ms. (20 steps per ms)
FORMULA FunctionPointer-PT-c004-UpperBounds-00 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 50005 steps (10 resets) in 111 ms. (446 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[1, 1, 0, 1, 3] Max Struct:[+inf, +inf, 1, +inf, +inf]
[2026-05-25 10:06:01] [INFO ] Flow matrix only has 3540 transitions (discarded 2422 similar events)
[2026-05-25 10:06:01] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 10:06:02] [INFO ] [Real]Absence check using 3 positive place invariants in 17 ms returned sat
[2026-05-25 10:06:02] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 0 ms returned sat
[2026-05-25 10:06:02] [INFO ] [Real]Absence check using state equation in 725 ms returned sat
[2026-05-25 10:06:03] [INFO ] State equation strengthened by 479 read => feed constraints.
[2026-05-25 10:06:03] [INFO ] [Real]Added 479 Read/Feed constraints in 139 ms returned sat
[2026-05-25 10:06:03] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 10:06:03] [INFO ] [Nat]Absence check using 3 positive place invariants in 15 ms returned sat
[2026-05-25 10:06:03] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 2 ms returned sat
[2026-05-25 10:06:04] [INFO ] [Nat]Absence check using state equation in 747 ms returned sat
[2026-05-25 10:06:04] [INFO ] [Nat]Added 479 Read/Feed constraints in 132 ms returned sat
[2026-05-25 10:06:05] [INFO ] Computed and/alt/rep : 351/504/351 causal constraints (skipped 3187 transitions) in 843 ms.
[2026-05-25 10:06:05] [INFO ] Added : 2 causal constraints over 1 iterations in 1251 ms. Result :sat
Minimization took 581 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 10:06:06] [INFO ] [Real]Absence check using 3 positive place invariants in 14 ms returned sat
[2026-05-25 10:06:06] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2026-05-25 10:06:07] [INFO ] [Real]Absence check using state equation in 730 ms returned sat
[2026-05-25 10:06:07] [INFO ] [Real]Added 479 Read/Feed constraints in 153 ms returned sat
[2026-05-25 10:06:07] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 10:06:07] [INFO ] [Nat]Absence check using 3 positive place invariants in 15 ms returned sat
[2026-05-25 10:06:07] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2026-05-25 10:06:08] [INFO ] [Nat]Absence check using state equation in 749 ms returned sat
[2026-05-25 10:06:08] [INFO ] [Nat]Added 479 Read/Feed constraints in 139 ms returned sat
[2026-05-25 10:06:09] [INFO ] Computed and/alt/rep : 351/504/351 causal constraints (skipped 3187 transitions) in 989 ms.
[2026-05-25 10:06:10] [INFO ] Added : 2 causal constraints over 1 iterations in 1457 ms. Result :sat
Minimization took 577 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 10:06:11] [INFO ] [Real]Absence check using 3 positive place invariants in 13 ms returned sat
[2026-05-25 10:06:11] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 5 ms returned sat
[2026-05-25 10:06:11] [INFO ] [Real]Absence check using state equation in 697 ms returned sat
[2026-05-25 10:06:12] [INFO ] [Real]Added 479 Read/Feed constraints in 171 ms returned sat
[2026-05-25 10:06:12] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 10:06:12] [INFO ] [Nat]Absence check using 3 positive place invariants in 14 ms returned sat
[2026-05-25 10:06:12] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 0 ms returned sat
[2026-05-25 10:06:12] [INFO ] [Nat]Absence check using state equation in 690 ms returned sat
[2026-05-25 10:06:13] [INFO ] [Nat]Added 479 Read/Feed constraints in 87 ms returned sat
[2026-05-25 10:06:13] [INFO ] Computed and/alt/rep : 351/504/351 causal constraints (skipped 3187 transitions) in 477 ms.
[2026-05-25 10:06:13] [INFO ] Added : 2 causal constraints over 1 iterations in 804 ms. Result :sat
Minimization took 576 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 10:06:14] [INFO ] [Real]Absence check using 3 positive place invariants in 13 ms returned sat
[2026-05-25 10:06:14] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 6 ms returned sat
[2026-05-25 10:06:15] [INFO ] [Real]Absence check using state equation in 707 ms returned sat
[2026-05-25 10:06:15] [INFO ] [Real]Added 479 Read/Feed constraints in 123 ms returned sat
[2026-05-25 10:06:15] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 10:06:15] [INFO ] [Nat]Absence check using 3 positive place invariants in 15 ms returned sat
[2026-05-25 10:06:15] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2026-05-25 10:06:16] [INFO ] [Nat]Absence check using state equation in 707 ms returned sat
[2026-05-25 10:06:16] [INFO ] [Nat]Added 479 Read/Feed constraints in 116 ms returned sat
[2026-05-25 10:06:17] [INFO ] Computed and/alt/rep : 351/504/351 causal constraints (skipped 3187 transitions) in 489 ms.
[2026-05-25 10:06:17] [INFO ] Added : 2 causal constraints over 1 iterations in 832 ms. Result :sat
Minimization took 577 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 10:06:18] [INFO ] [Real]Absence check using 3 positive place invariants in 14 ms returned sat
[2026-05-25 10:06:18] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2026-05-25 10:06:19] [INFO ] [Real]Absence check using state equation in 713 ms returned sat
[2026-05-25 10:06:19] [INFO ] [Real]Added 479 Read/Feed constraints in 95 ms returned sat
[2026-05-25 10:06:19] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 10:06:19] [INFO ] [Nat]Absence check using 3 positive place invariants in 14 ms returned sat
[2026-05-25 10:06:19] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2026-05-25 10:06:20] [INFO ] [Nat]Absence check using state equation in 723 ms returned sat
[2026-05-25 10:06:20] [INFO ] [Nat]Added 479 Read/Feed constraints in 98 ms returned sat
[2026-05-25 10:06:20] [INFO ] Computed and/alt/rep : 351/504/351 causal constraints (skipped 3187 transitions) in 528 ms.
[2026-05-25 10:06:21] [INFO ] Added : 1 causal constraints over 1 iterations in 892 ms. Result :sat
Minimization took 576 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[1, 1, 0, 1, 3] Max Struct:[+inf, +inf, 1, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[1, 1, 0, 1, 3] Max Struct:[+inf, +inf, 1, +inf, +inf]
Support contains 5 out of 1628 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 1628/1628 places, 5962/5962 transitions.
Graph (complete) has 7332 edges and 1628 vertex of which 1419 are kept as prefixes of interest. Removing 209 places using SCC suffix rule.14 ms
Discarding 209 places :
Also discarding 0 output transitions
Drop transitions (Empty/Sink Transition effects.) removed 384 transitions
Reduce isomorphic transitions removed 384 transitions.
Iterating post reduction 0 with 384 rules applied. Total rules applied 385 place count 1419 transition count 5578
Discarding 300 places :
Symmetric choice reduction at 1 with 300 rule applications. Total rules 685 place count 1119 transition count 3298
Iterating global reduction 1 with 300 rules applied. Total rules applied 985 place count 1119 transition count 3298
Ensure Unique test removed 362 transitions
Reduce isomorphic transitions removed 362 transitions.
Iterating post reduction 1 with 362 rules applied. Total rules applied 1347 place count 1119 transition count 2936
Discarding 156 places :
Symmetric choice reduction at 2 with 156 rule applications. Total rules 1503 place count 963 transition count 2624
Iterating global reduction 2 with 156 rules applied. Total rules applied 1659 place count 963 transition count 2624
Ensure Unique test removed 68 transitions
Reduce isomorphic transitions removed 68 transitions.
Iterating post reduction 2 with 68 rules applied. Total rules applied 1727 place count 963 transition count 2556
Discarding 14 places :
Symmetric choice reduction at 3 with 14 rule applications. Total rules 1741 place count 949 transition count 2528
Iterating global reduction 3 with 14 rules applied. Total rules applied 1755 place count 949 transition count 2528
Discarding 14 places :
Symmetric choice reduction at 3 with 14 rule applications. Total rules 1769 place count 935 transition count 2500
Iterating global reduction 3 with 14 rules applied. Total rules applied 1783 place count 935 transition count 2500
Discarding 14 places :
Symmetric choice reduction at 3 with 14 rule applications. Total rules 1797 place count 921 transition count 2472
Iterating global reduction 3 with 14 rules applied. Total rules applied 1811 place count 921 transition count 2472
Discarding 14 places :
Symmetric choice reduction at 3 with 14 rule applications. Total rules 1825 place count 907 transition count 2444
Iterating global reduction 3 with 14 rules applied. Total rules applied 1839 place count 907 transition count 2444
Discarding 14 places :
Symmetric choice reduction at 3 with 14 rule applications. Total rules 1853 place count 893 transition count 2416
Iterating global reduction 3 with 14 rules applied. Total rules applied 1867 place count 893 transition count 2416
Discarding 13 places :
Symmetric choice reduction at 3 with 13 rule applications. Total rules 1880 place count 880 transition count 2390
Iterating global reduction 3 with 13 rules applied. Total rules applied 1893 place count 880 transition count 2390
Discarding 13 places :
Symmetric choice reduction at 3 with 13 rule applications. Total rules 1906 place count 867 transition count 2364
Iterating global reduction 3 with 13 rules applied. Total rules applied 1919 place count 867 transition count 2364
Discarding 53 places :
Symmetric choice reduction at 3 with 53 rule applications. Total rules 1972 place count 814 transition count 2166
Iterating global reduction 3 with 53 rules applied. Total rules applied 2025 place count 814 transition count 2166
Discarding 60 places :
Symmetric choice reduction at 3 with 60 rule applications. Total rules 2085 place count 754 transition count 1926
Iterating global reduction 3 with 60 rules applied. Total rules applied 2145 place count 754 transition count 1926
Discarding 59 places :
Symmetric choice reduction at 3 with 59 rule applications. Total rules 2204 place count 695 transition count 1780
Iterating global reduction 3 with 59 rules applied. Total rules applied 2263 place count 695 transition count 1780
Discarding 59 places :
Symmetric choice reduction at 3 with 59 rule applications. Total rules 2322 place count 636 transition count 1662
Iterating global reduction 3 with 59 rules applied. Total rules applied 2381 place count 636 transition count 1662
Discarding 59 places :
Symmetric choice reduction at 3 with 59 rule applications. Total rules 2440 place count 577 transition count 1544
Iterating global reduction 3 with 59 rules applied. Total rules applied 2499 place count 577 transition count 1544
Discarding 59 places :
Symmetric choice reduction at 3 with 59 rule applications. Total rules 2558 place count 518 transition count 1426
Iterating global reduction 3 with 59 rules applied. Total rules applied 2617 place count 518 transition count 1426
Discarding 58 places :
Symmetric choice reduction at 3 with 58 rule applications. Total rules 2675 place count 460 transition count 1310
Iterating global reduction 3 with 58 rules applied. Total rules applied 2733 place count 460 transition count 1310
Discarding 14 places :
Symmetric choice reduction at 3 with 14 rule applications. Total rules 2747 place count 446 transition count 1282
Iterating global reduction 3 with 14 rules applied. Total rules applied 2761 place count 446 transition count 1282
Drop transitions (Redundant composition of simpler transitions.) removed 8 transitions
Redundant transition composition rules discarded 8 transitions
Iterating global reduction 3 with 8 rules applied. Total rules applied 2769 place count 446 transition count 1274
Applied a total of 2769 rules in 1157 ms. Remains 446 /1628 variables (removed 1182) and now considering 1274/5962 (removed 4688) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 1168 ms. Remains : 446/1628 places, 1274/5962 transitions.
[2026-05-25 10:06:23] [INFO ] Flow matrix only has 730 transitions (discarded 544 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {192=1, 256=1, 262=1, 305=1, 634=1, 724=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {252=1, 365=1, 566=1, 722=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 5) seen :[2, 2, 0, 0, 0]
Current structural bounds on expressions (after cover walk) : Max Seen:[2, 2, 0, 1, 3] Max Struct:[+inf, +inf, 1, +inf, +inf]
[2026-05-25 10:06:23] [INFO ] Flow matrix only has 730 transitions (discarded 544 similar events)
// Phase 1: matrix 730 rows 446 cols
[2026-05-25 10:06:23] [INFO ] Computed 3 invariants in 12 ms
Current structural bounds on expressions (after invariants) : Max Seen:[2, 2, 0, 1, 3] Max Struct:[+inf, +inf, 1, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 2749 ms. (363 steps per ms)
FORMULA FunctionPointer-PT-c004-UpperBounds-13 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 4000004 steps (8 resets) in 2606 ms. (1534 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[2, 273, 4, 7] Max Struct:[+inf, +inf, +inf, +inf]
[2026-05-25 10:06:28] [INFO ] Flow matrix only has 730 transitions (discarded 544 similar events)
[2026-05-25 10:06:28] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:06:28] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 10:06:29] [INFO ] [Real]Absence check using state equation in 137 ms returned sat
[2026-05-25 10:06:29] [INFO ] State equation strengthened by 86 read => feed constraints.
[2026-05-25 10:06:29] [INFO ] [Real]Added 86 Read/Feed constraints in 37 ms returned sat
[2026-05-25 10:06:29] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:06:29] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:06:29] [INFO ] [Nat]Absence check using state equation in 144 ms returned sat
[2026-05-25 10:06:29] [INFO ] [Nat]Added 86 Read/Feed constraints in 28 ms returned sat
[2026-05-25 10:06:29] [INFO ] Computed and/alt/rep : 352/2346/345 causal constraints (skipped 383 transitions) in 68 ms.
[2026-05-25 10:06:29] [INFO ] Added : 20 causal constraints over 5 iterations in 314 ms. Result :sat
Minimization took 267 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:06:30] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:06:30] [INFO ] [Real]Absence check using state equation in 132 ms returned sat
[2026-05-25 10:06:30] [INFO ] [Real]Added 86 Read/Feed constraints in 32 ms returned sat
[2026-05-25 10:06:30] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:06:30] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 10:06:30] [INFO ] [Nat]Absence check using state equation in 132 ms returned sat
[2026-05-25 10:06:30] [INFO ] [Nat]Added 86 Read/Feed constraints in 39 ms returned sat
[2026-05-25 10:06:30] [INFO ] Computed and/alt/rep : 352/2346/345 causal constraints (skipped 383 transitions) in 65 ms.
[2026-05-25 10:06:31] [INFO ] Added : 27 causal constraints over 7 iterations in 437 ms. Result :sat
Minimization took 331 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:06:31] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:06:31] [INFO ] [Real]Absence check using state equation in 140 ms returned sat
[2026-05-25 10:06:31] [INFO ] [Real]Added 86 Read/Feed constraints in 38 ms returned sat
[2026-05-25 10:06:31] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:06:31] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 10:06:31] [INFO ] [Nat]Absence check using state equation in 136 ms returned sat
[2026-05-25 10:06:31] [INFO ] [Nat]Added 86 Read/Feed constraints in 35 ms returned sat
[2026-05-25 10:06:31] [INFO ] Computed and/alt/rep : 352/2346/345 causal constraints (skipped 383 transitions) in 67 ms.
[2026-05-25 10:06:32] [INFO ] Added : 18 causal constraints over 5 iterations in 353 ms. Result :sat
Minimization took 414 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:06:32] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 10:06:32] [INFO ] [Real]Absence check using state equation in 135 ms returned sat
[2026-05-25 10:06:32] [INFO ] [Real]Added 86 Read/Feed constraints in 26 ms returned sat
[2026-05-25 10:06:32] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:06:33] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:06:33] [INFO ] [Nat]Absence check using state equation in 131 ms returned sat
[2026-05-25 10:06:33] [INFO ] [Nat]Added 86 Read/Feed constraints in 39 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:06:33] [INFO ] Deduced a trap composed of 74 places in 247 ms of which 37 ms to minimize.
[2026-05-25 10:06:33] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 310 ms
[2026-05-25 10:06:33] [INFO ] Computed and/alt/rep : 352/2346/345 causal constraints (skipped 383 transitions) in 69 ms.
[2026-05-25 10:06:33] [INFO ] Added : 5 causal constraints over 2 iterations in 237 ms. Result :sat
Minimization took 266 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[2, 273, 4, 7] Max Struct:[+inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[3, 273, 4, 7] Max Struct:[+inf, +inf, +inf, +inf]
Support contains 4 out of 446 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 446/446 places, 1274/1274 transitions.
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 1 place count 445 transition count 1272
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 445 transition count 1272
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 3 place count 444 transition count 1270
Iterating global reduction 0 with 1 rules applied. Total rules applied 4 place count 444 transition count 1270
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 5 place count 443 transition count 1268
Iterating global reduction 0 with 1 rules applied. Total rules applied 6 place count 443 transition count 1268
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 7 place count 442 transition count 1266
Iterating global reduction 0 with 1 rules applied. Total rules applied 8 place count 442 transition count 1266
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 9 place count 441 transition count 1264
Iterating global reduction 0 with 1 rules applied. Total rules applied 10 place count 441 transition count 1264
Applied a total of 10 rules in 94 ms. Remains 441 /446 variables (removed 5) and now considering 1264/1274 (removed 10) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 94 ms. Remains : 441/446 places, 1264/1274 transitions.
[2026-05-25 10:06:35] [INFO ] Flow matrix only has 721 transitions (discarded 543 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {229=1, 339=1, 667=1, 716=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {252=1, 362=1, 562=1, 710=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 79 ms. (steps per millisecond=126 ) properties (out of 4) seen :[0, 2, 0, 8]
Current structural bounds on expressions (after cover walk) : Max Seen:[3, 273, 4, 8] Max Struct:[+inf, +inf, +inf, +inf]
[2026-05-25 10:06:35] [INFO ] Flow matrix only has 721 transitions (discarded 543 similar events)
// Phase 1: matrix 721 rows 441 cols
[2026-05-25 10:06:36] [INFO ] Computed 3 invariants in 9 ms
Current structural bounds on expressions (after invariants) : Max Seen:[3, 273, 4, 8] Max Struct:[+inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 2667 ms. (374 steps per ms)
BEST_FIRST walk for 4000004 steps (8 resets) in 2558 ms. (1563 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[3, 309, 4, 8] Max Struct:[+inf, +inf, +inf, +inf]
[2026-05-25 10:06:41] [INFO ] Flow matrix only has 721 transitions (discarded 543 similar events)
[2026-05-25 10:06:41] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:06:41] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 10:06:41] [INFO ] [Real]Absence check using state equation in 131 ms returned sat
[2026-05-25 10:06:41] [INFO ] State equation strengthened by 83 read => feed constraints.
[2026-05-25 10:06:41] [INFO ] [Real]Added 83 Read/Feed constraints in 34 ms returned sat
[2026-05-25 10:06:41] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:06:41] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:06:41] [INFO ] [Nat]Absence check using state equation in 132 ms returned sat
[2026-05-25 10:06:41] [INFO ] [Nat]Added 83 Read/Feed constraints in 20 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:06:41] [INFO ] Deduced a trap composed of 73 places in 223 ms of which 25 ms to minimize.
[2026-05-25 10:06:41] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 268 ms
[2026-05-25 10:06:42] [INFO ] Computed and/alt/rep : 348/2064/341 causal constraints (skipped 378 transitions) in 66 ms.
[2026-05-25 10:06:42] [INFO ] Added : 23 causal constraints over 7 iterations in 664 ms. Result :sat
Minimization took 264 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:06:42] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:06:43] [INFO ] [Real]Absence check using state equation in 132 ms returned sat
[2026-05-25 10:06:43] [INFO ] [Real]Added 83 Read/Feed constraints in 25 ms returned sat
[2026-05-25 10:06:43] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:06:43] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:06:43] [INFO ] [Nat]Absence check using state equation in 132 ms returned sat
[2026-05-25 10:06:43] [INFO ] [Nat]Added 83 Read/Feed constraints in 18 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:06:43] [INFO ] Deduced a trap composed of 73 places in 223 ms of which 26 ms to minimize.
[2026-05-25 10:06:43] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 271 ms
[2026-05-25 10:06:43] [INFO ] Computed and/alt/rep : 348/2064/341 causal constraints (skipped 378 transitions) in 69 ms.
[2026-05-25 10:06:44] [INFO ] Added : 34 causal constraints over 8 iterations in 520 ms. Result :sat
Minimization took 339 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:06:44] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:06:44] [INFO ] [Real]Absence check using state equation in 132 ms returned sat
[2026-05-25 10:06:44] [INFO ] [Real]Added 83 Read/Feed constraints in 29 ms returned sat
[2026-05-25 10:06:44] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:06:44] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 10:06:45] [INFO ] [Nat]Absence check using state equation in 131 ms returned sat
[2026-05-25 10:06:45] [INFO ] [Nat]Added 83 Read/Feed constraints in 32 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:06:45] [INFO ] Deduced a trap composed of 73 places in 228 ms of which 26 ms to minimize.
[2026-05-25 10:06:45] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 272 ms
[2026-05-25 10:06:45] [INFO ] Computed and/alt/rep : 348/2064/341 causal constraints (skipped 378 transitions) in 72 ms.
[2026-05-25 10:06:45] [INFO ] Added : 10 causal constraints over 3 iterations in 252 ms. Result :sat
Minimization took 265 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:06:45] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:06:46] [INFO ] [Real]Absence check using state equation in 134 ms returned sat
[2026-05-25 10:06:46] [INFO ] [Real]Added 83 Read/Feed constraints in 28 ms returned sat
[2026-05-25 10:06:46] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:06:46] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:06:46] [INFO ] [Nat]Absence check using state equation in 133 ms returned sat
[2026-05-25 10:06:46] [INFO ] [Nat]Added 83 Read/Feed constraints in 22 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:06:46] [INFO ] Deduced a trap composed of 73 places in 247 ms of which 43 ms to minimize.
[2026-05-25 10:06:46] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 303 ms
[2026-05-25 10:06:46] [INFO ] Computed and/alt/rep : 348/2064/341 causal constraints (skipped 378 transitions) in 89 ms.
[2026-05-25 10:06:46] [INFO ] Added : 5 causal constraints over 2 iterations in 261 ms. Result :sat
Minimization took 259 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[3, 309, 4, 8] Max Struct:[+inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[3, 309, 4, 8] Max Struct:[+inf, +inf, +inf, +inf]
Support contains 4 out of 441 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 441/441 places, 1264/1264 transitions.
Applied a total of 0 rules in 51 ms. Remains 441 /441 variables (removed 0) and now considering 1264/1264 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 51 ms. Remains : 441/441 places, 1264/1264 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 441/441 places, 1264/1264 transitions.
Applied a total of 0 rules in 51 ms. Remains 441 /441 variables (removed 0) and now considering 1264/1264 (removed 0) transitions.
[2026-05-25 10:06:49] [INFO ] Flow matrix only has 721 transitions (discarded 543 similar events)
[2026-05-25 10:06:49] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 10:06:49] [INFO ] Implicit Places using invariants in 321 ms returned []
[2026-05-25 10:06:49] [INFO ] Flow matrix only has 721 transitions (discarded 543 similar events)
[2026-05-25 10:06:49] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 10:06:49] [INFO ] State equation strengthened by 83 read => feed constraints.
[2026-05-25 10:06:51] [INFO ] Implicit Places using invariants and state equation in 1673 ms returned []
Implicit Place search using SMT with State Equation took 1996 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-25 10:06:51] [INFO ] Redundant transitions in 87 ms returned []
Running 1262 sub problems to find dead transitions.
[2026-05-25 10:06:51] [INFO ] Flow matrix only has 721 transitions (discarded 543 similar events)
[2026-05-25 10:06:51] [INFO ] Invariant cache hit.
[2026-05-25 10:06:51] [INFO ] State equation strengthened by 83 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/441 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1262 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:07:02] [INFO ] Deduced a trap composed of 131 places in 156 ms of which 6 ms to minimize.
At refinement iteration 1 (INCLUDED_ONLY) 0/441 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1262 unsolved
Error getting values : (error "ParserException while parsing response: ((s0 1.0)
(s1 0.0)
(s2 0.0)
(s3 0.0)
(s4 0.0)
(s5 0.0)
(s6 0.0)
(s7 0.0)
(s8 0.0)
(s9 0.0)
(s10 0.0)
(s11 0.0)
(s12 0.0)
(s13 0.0)
(s14 0.0)
(s15 0.0)
(s16 0.0)
(s17 0.0)
(s18 0.0)
(s19 0.0)
(s20 0.0)
(s21 0.0)
(s22 0.0)
(s23 0.0)
(s24 0.0)
(s25 0.0)
(s26 0.0)
(s27 0.0)
(s28 0.0)
(s29 0.0)
(s30 0.0)
(s31 0.0)
(s32 0.0)
(s33 0.0)
(s34 0.0)
(s35 0.0)
(s36 0.0)
(s37 0.0)
(s38 0.0)
(s39 0.0)
(s40 0.0)
(s41 0.0)
(s42 0.0)
(s43 0.0)
(s44 0.0)
(s45 0.0)
(s46 0.0)
(s47 0.0)
(s48 0.0)
(s49 0.0)
(s50 0.0)
(s51 0.0)
(s52 0.0)
(s53 0.0)
(s54 0.0)
(s55 0.0)
(s56 0.0)
(s57 0.0)
(s58 0.0)
(s59 0.0)
(s60 0.0)
(s61 0.0)
(s62 0.0)
(s63 0.0)
(s64 0.0)
(s65 0.0)
(s66 0.0)
(s67 0.0)
(s68 0.0)
(s69 0.0)
(s70 0.0)
(s71 0.0)
(s72 0.0)
(s73 0.0)
(s74 0.0)
(s75 0.0)
(s76 0.0)
(s77 0.0)
(s78 0.0)
(s79 0.0)
(s80 0.0)
(s81 0.0)
(s82 0.0)
(s83 0.0)
(s84 0.0)
(s85 0.0)
(s86 0.0)
(s87 0.0)
(s88 0.0)
(s89 0.0)
(s90 0.0)
(s91 0.0)
(s92 0.0)
(s93 0.0)
(s94 0.0)
(s95 0.0)
(s96 0.0)
(s97 0.0)
(s98 0.0)
(s99 0.0)
(s100 0.0)
(s101 0.0)
(s102 0.0)
(s103 0.0)
(s104 0.0)
(s105 0.0)
(s106 0.0)
(s107 0.0)
(s108 0.0)
(s109 0.0)
(s110 0.0)
(s111 0.0)
(s112 0.0)
(s113 0.0)
(s114 0.0)
(s115 0.0)
(s116 0.0)
(s117 0.0)
(s118 0.0)
(s119 0.0)
(s120 0.0)
(s121 0.0)
(s122 0.0)
(s123 0.0)
(s124 0.0)
(s125 0.0)
(s126 0.0)
(s127 0.0)
(s128 0.0)
(s129 0.0)
(s130 0.0)
(s131 0.0)
(s132 0.0)
(s133 1.0)
(s134 0.0)
(s135 0.0)
(s136 0.0)
(s137 0.0)
(s138 0.0)
(s139 0.0)
(s140 0.0)
(s141 0.0)
(s142 0.0)
(s143 0.0)
(s144 0.0)
(s145 0.0)
(s146 0.0)
(s147 0.0)
(s148 0.0)
(s149 0.0)
(s150 0.0)
(s151 0.0)
(s152 0.0)
(s153 0.0)
(s154 0.0)
(s155 0.0)
(s156 0.0)
(s157 0.0)
(s158 0.0)
(s159 0.0)
(s160 0.0)
(s161 0.0)
(s162 0.0)
(s163 0.0)
(s164 0.0)
(s165 0.0)
(s166 0.0)
(s167 0.0)
(s168 0.0)
(s169 0.0)
(s170 0.0)
(s171 0.0)
(s172 0.0)
(s173 0.0)
(s174 0.0)
(s175 0.0)
(s176 0.0)
(s177 0.0)
(s178 0.0)
(s179 0.0)
(s180 0.0)
(s181 0.0)
(s182 0.0)
(s183 0.0)
(s184 0.0)
(s185 0.0)
(s186 0.0)
(s187 0.0)
(s188 0.0)
(s189 0.0)
(s190 0.0)
(s191 0.0)
(s192 0.0)
(s193 0.0)
(s194 0.0)
(s195 0.0)
(s196 0.0)
(s197 0.0)
(s198 0.0)
(s199 0.0)
(s200 0.0)
(s201 0.0)
(s202 0.0)
(s203 0.0)
(s204 0.0)
(s205 0.0)
(s206 0.0)
(s207 0.0)
(s208 0.0)
(s209 0.0)
(s210 0.0)
(s211 0.0)
(s212 0.0)
(s213 0.0)
(s214 0.0)
(s215 0.0)
(s216 0.0)
(s217 0.0)
(s218 0.0)
(s219 0.0)
(s220 0.0)
(s221 0.0)
(s222 0.0)
(s223 0.0)
(s224 0.0)
(s225 0.0)
(s226 0.0)
(s227 0.0)
(s228 0.0)
(s229 0.0)
(s230 0.0)
(s231 0.0)
(s232 0.0)
(s233 0.0)
(s234 0.0)
(s235 0.0)
(s236 0.0)
(s237 0.0)
(s238 0.0)
(s239 0.0)
(s240 0.0)
(s241 0.0)
(s242 0.0)
(s243 0.0)
(s244 0.0)
(s245 0.0)
(s246 0.0)
(s247 0.0)
(s248 0.0)
(s249 0.0)
(s250 0.0)
(s251 0.0)
(s252 0.0)
(s253 0.0)
(s254 0.0)
(s255 0.0)
(s256 0.0)
(s257 0.0)
(s258 0.0)
(s259 0.0)
(s260 0.0)
(s261 0.0)
(s262 0.0)
(s263 0.0)
(s264 0.0)
(s265 0.0)
(s266 0.0)
(s267 0.0)
(s268 0.0)
(s269 0.0)
(s270 0.0)
(s271 0.0)
(s272 timeout
0.0) org.smtlib.IParser$ParserException: Unbalanced parentheses at end of input")
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 441/1162 variables, and 4 constraints, problems are : Problem set: 0 solved, 1262 unsolved in 30044 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/441 constraints, ReadFeed: 0/83 constraints, PredecessorRefiner: 1262/1262 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1262 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/441 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1262 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/441 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1262 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/441 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1262 unsolved
At refinement iteration 3 (OVERLAPS) 721/1162 variables, 441/445 constraints. Problems are: Problem set: 0 solved, 1262 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1162 variables, 83/528 constraints. Problems are: Problem set: 0 solved, 1262 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1162/1162 variables, and 1790 constraints, problems are : Problem set: 0 solved, 1262 unsolved in 30854 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 441/441 constraints, ReadFeed: 83/83 constraints, PredecessorRefiner: 1262/1262 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 62815ms problems are : Problem set: 0 solved, 1262 unsolved
Search for dead transitions found 0 dead transitions in 62831ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 64992 ms. Remains : 441/441 places, 1264/1264 transitions.
[2026-05-25 10:07:54] [INFO ] Flow matrix only has 721 transitions (discarded 543 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {229=1, 339=1, 667=1, 716=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {252=1, 362=1, 562=1, 710=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 96 ms. (steps per millisecond=104 ) properties (out of 4) seen :[0, 1, 2, 0]
Current structural bounds on expressions (after cover walk) : Max Seen:[3, 309, 4, 8] Max Struct:[+inf, +inf, +inf, +inf]
[2026-05-25 10:07:54] [INFO ] Flow matrix only has 721 transitions (discarded 543 similar events)
[2026-05-25 10:07:54] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[3, 309, 4, 8] Max Struct:[+inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 2611 ms. (382 steps per ms)
BEST_FIRST walk for 4000004 steps (8 resets) in 2523 ms. (1584 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[3, 309, 497, 1021] Max Struct:[+inf, +inf, +inf, +inf]
[2026-05-25 10:07:59] [INFO ] Flow matrix only has 721 transitions (discarded 543 similar events)
[2026-05-25 10:07:59] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:07:59] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:07:59] [INFO ] [Real]Absence check using state equation in 134 ms returned sat
[2026-05-25 10:07:59] [INFO ] State equation strengthened by 83 read => feed constraints.
[2026-05-25 10:07:59] [INFO ] [Real]Added 83 Read/Feed constraints in 30 ms returned sat
[2026-05-25 10:07:59] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:07:59] [INFO ] [Nat]Absence check using 3 positive place invariants in 8 ms returned sat
[2026-05-25 10:08:00] [INFO ] [Nat]Absence check using state equation in 133 ms returned sat
[2026-05-25 10:08:00] [INFO ] [Nat]Added 83 Read/Feed constraints in 20 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:08:00] [INFO ] Deduced a trap composed of 73 places in 228 ms of which 25 ms to minimize.
[2026-05-25 10:08:00] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 265 ms
[2026-05-25 10:08:00] [INFO ] Computed and/alt/rep : 348/2064/341 causal constraints (skipped 378 transitions) in 74 ms.
[2026-05-25 10:08:01] [INFO ] Added : 23 causal constraints over 7 iterations in 670 ms. Result :sat
Minimization took 265 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:08:01] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:08:01] [INFO ] [Real]Absence check using state equation in 130 ms returned sat
[2026-05-25 10:08:01] [INFO ] [Real]Added 83 Read/Feed constraints in 26 ms returned sat
[2026-05-25 10:08:01] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:08:01] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:08:01] [INFO ] [Nat]Absence check using state equation in 133 ms returned sat
[2026-05-25 10:08:01] [INFO ] [Nat]Added 83 Read/Feed constraints in 17 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:08:02] [INFO ] Deduced a trap composed of 73 places in 218 ms of which 26 ms to minimize.
[2026-05-25 10:08:02] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 264 ms
[2026-05-25 10:08:02] [INFO ] Computed and/alt/rep : 348/2064/341 causal constraints (skipped 378 transitions) in 79 ms.
[2026-05-25 10:08:02] [INFO ] Added : 34 causal constraints over 8 iterations in 527 ms. Result :sat
Minimization took 341 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:08:03] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:08:03] [INFO ] [Real]Absence check using state equation in 129 ms returned sat
[2026-05-25 10:08:03] [INFO ] [Real]Added 83 Read/Feed constraints in 34 ms returned sat
[2026-05-25 10:08:03] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:08:03] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:08:03] [INFO ] [Nat]Absence check using state equation in 128 ms returned sat
[2026-05-25 10:08:03] [INFO ] [Nat]Added 83 Read/Feed constraints in 21 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:08:03] [INFO ] Deduced a trap composed of 73 places in 244 ms of which 42 ms to minimize.
[2026-05-25 10:08:03] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 291 ms
[2026-05-25 10:08:03] [INFO ] Computed and/alt/rep : 348/2064/341 causal constraints (skipped 378 transitions) in 68 ms.
[2026-05-25 10:08:04] [INFO ] Added : 11 causal constraints over 3 iterations in 250 ms. Result :sat
Minimization took 261 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:08:04] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 10:08:04] [INFO ] [Real]Absence check using state equation in 132 ms returned sat
[2026-05-25 10:08:04] [INFO ] [Real]Added 83 Read/Feed constraints in 27 ms returned sat
[2026-05-25 10:08:04] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:08:04] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:08:04] [INFO ] [Nat]Absence check using state equation in 129 ms returned sat
[2026-05-25 10:08:04] [INFO ] [Nat]Added 83 Read/Feed constraints in 21 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:08:05] [INFO ] Deduced a trap composed of 73 places in 240 ms of which 41 ms to minimize.
[2026-05-25 10:08:05] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 298 ms
[2026-05-25 10:08:05] [INFO ] Computed and/alt/rep : 348/2064/341 causal constraints (skipped 378 transitions) in 69 ms.
[2026-05-25 10:08:05] [INFO ] Added : 5 causal constraints over 2 iterations in 232 ms. Result :sat
Minimization took 246 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[3, 309, 497, 1021] Max Struct:[+inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[3, 309, 497, 1021] Max Struct:[+inf, +inf, +inf, +inf]
Support contains 4 out of 441 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 441/441 places, 1264/1264 transitions.
Applied a total of 0 rules in 61 ms. Remains 441 /441 variables (removed 0) and now considering 1264/1264 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 61 ms. Remains : 441/441 places, 1264/1264 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 441/441 places, 1264/1264 transitions.
Applied a total of 0 rules in 58 ms. Remains 441 /441 variables (removed 0) and now considering 1264/1264 (removed 0) transitions.
[2026-05-25 10:08:11] [INFO ] Flow matrix only has 721 transitions (discarded 543 similar events)
[2026-05-25 10:08:11] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 10:08:11] [INFO ] Implicit Places using invariants in 294 ms returned []
[2026-05-25 10:08:11] [INFO ] Flow matrix only has 721 transitions (discarded 543 similar events)
[2026-05-25 10:08:11] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 10:08:11] [INFO ] State equation strengthened by 83 read => feed constraints.
[2026-05-25 10:08:13] [INFO ] Implicit Places using invariants and state equation in 1616 ms returned []
Implicit Place search using SMT with State Equation took 1912 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-25 10:08:13] [INFO ] Redundant transitions in 33 ms returned []
Running 1262 sub problems to find dead transitions.
[2026-05-25 10:08:13] [INFO ] Flow matrix only has 721 transitions (discarded 543 similar events)
[2026-05-25 10:08:13] [INFO ] Invariant cache hit.
[2026-05-25 10:08:13] [INFO ] State equation strengthened by 83 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/441 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1262 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:08:23] [INFO ] Deduced a trap composed of 131 places in 150 ms of which 6 ms to minimize.
At refinement iteration 1 (INCLUDED_ONLY) 0/441 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1262 unsolved
Error getting values : (error "ParserException while parsing response: ((s0 0.0)
(s1 1.0)
(s2 0.0)
(s3 0.0)
(s4 0.0)
(s5 0.0)
(s6 0.0)
(s7 0.0)
(s8 0.0)
(s9 0.0)
(s10 0.0)
(s11 0.0)
(s12 0.0)
(s13 0.0)
(s14 0.0)
(s15 0.0)
(s16 0.0)
(s17 0.0)
(s18 0.0)
(s19 0.0)
(s20 0.0)
(s21 0.0)
(s22 0.0)
(s23 0.0)
(s24 0.0)
(s25 0.0)
(s26 0.0)
(s27 0.0)
(s28 0.0)
(s29 0.0)
(s30 0.0)
(s31 0.0)
(s32 0.0)
(s33 0.0)
(s34 0.0)
(s35 0.0)
(s36 0.0)
(s37 0.0)
(s38 0.0)
(s39 0.0)
(s40 0.0)
(s41 0.0)
(s42 0.0)
(s43 0.0)
(s44 0.0)
(s45 0.0)
(s46 0.0)
(s47 0.0)
(s48 1.0)
(s49 0.0)
(s50 0.0)
(s51 1.0)
(s52 1.0)
(s53 1.0)
(s54 0.0)
(s55 0.0)
(s56 0.0)
(s57 0.0)
(s58 0.0)
(s59 0.0)
(s60 0.0)
(s61 0.0)
(s62 0.0)
(s63 0.0)
(s64 0.0)
(s65 0.0)
(s66 0.0)
(s67 0.0)
(s68 0.0)
(s69 0.0)
(s70 0.0)
(s71 0.0)
(s72 0.0)
(s73 0.0)
(s74 0.0)
(s75 0.0)
(s76 0.0)
(s77 0.0)
(s78 0.0)
(s79 0.0)
(s80 0.0)
(s81 0.0)
(s82 0.0)
(s83 0.0)
(s84 0.0)
(s85 0.0)
(s86 0.0)
(s87 0.0)
(s88 0.0)
(s89 0.0)
(s90 0.0)
(s91 0.0)
(s92 0.0)
(s93 0.0)
(s94 0.0)
(s95 0.0)
(s96 0.0)
(s97 0.0)
(s98 0.0)
(s99 0.0)
(s100 0.0)
(s101 0.0)
(s102 0.0)
(s103 0.0)
(s104 0.0)
(s105 0.0)
(s106 0.0)
(s107 0.0)
(s108 0.0)
(s109 0.0)
(s110 0.0)
(s111 0.0)
(s112 0.0)
(s113 0.0)
(s114 0.0)
(s115 0.0)
(s116 0.0)
(s117 0.0)
(s118 0.0)
(s119 0.0)
(s120 0.0)
(s121 0.0)
(s122 0.0)
(s123 0.0)
(s124 0.0)
(s125 0.0)
(s126 0.0)
(s127 0.0)
(s128 0.0)
(s129 0.0)
(s130 0.0)
(s131 0.0)
(s132 0.0)
(s133 0.0)
(s134 0.0)
(s135 0.0)
(s136 0.0)
(s137 0.0)
(s138 0.0)
(s139 0.0)
(s140 0.0)
(s141 0.0)
(s142 0.0)
(s143 0.0)
(s144 0.0)
(s145 0.0)
(s146 0.0)
(s147 0.0)
(s148 0.0)
(s149 0.0)
(s150 0.0)
(s151 0.0)
(s152 0.0)
(s153 0.0)
(s154 0.0)
(s155 0.0)
(s156 0.0)
(s157 0.0)
(s158 0.0)
(s159 0.0)
(s160 0.0)
(s161 0.0)
(s162 0.0)
(s163 0.0)
(s164 0.0)
(s165 0.0)
(s166 0.0)
(s167 0.0)
(s168 0.0)
(s169 0.0)
(s170 0.0)
(s171 0.0)
(s172 0.0)
(s173 0.0)
(s174 0.0)
(s175 0.0)
(s176 0.0)
(s177 0.0)
(s178 0.0)
(s179 0.0)
(s180 0.0)
(s181 0.0)
(s182 0.0)
(s183 0.0)
(s184 0.0)
(s185 0.0)
(s186 0.0)
(s187 0.0)
(s188 0.0)
(s189 0.0)
(s190 0.0)
(s191 0.0)
(s192 0.0)
(s193 0.0)
(s194 0.0)
(s195 0.0)
(s196 0.0)
(s197 0.0)
(s198 0.0)
(s199 0.0)
(s200 0.0)
(s201 0.0)
(s202 0.0)
(s203 0.0)
(s204 0.0)
(s205 0.0)
(s206 0.0)
(s207 0.0)
(s208 0.0)
(s209 0.0)
(s210 0.0)
(s211 0.0)
(s212 0.0)
(s213 0.0)
(s214 0.0)
(s215 0.0)
(s216 0.0)
(s217 0.0)
(s218 0.0)
(s219 0.0)
(s220 0.0)
(s221 0.0)
(s222 0.0)
(s223 0.0)
(s224 0.0)
(s225 0.0)
(s226 0.0)
(s227 0.0)
(s228 0.0)
(s229 0.0)
(s230 0.0)
(s231 0.0)
(s232 0.0)
(s233 0.0)
(s234 0.0)
(s235 0.0)
(s236 0.0)
(s237 0.0)
(s238 0.0)
(s239 0.0)
(s240 0.0)
(s241 0.0)
(s242 0.0)
(s243 0.0)
(s244 0.0)
(s245 0.0)
(s246 0.0)
(s247 0.0)
(s248 0.0)
(s249 0.0)
(s250 0.0)
(s251 0.0)
(s252 0.0)
(s253 0.0)
(s254 0.0)
(s255 0.0)
(s256 0.0)
(s257 0.0)
(s258 0.0)
(s259 0.0)
(s260 0.0)
(s261 0.0)
(s262 0.0)
(s263 0.0)
(s264 0.0)
(s265 0.0)
(s266 0.0)
(s267 0.0)
(s268 0.0)
(s269 0.0)
(s270 0.0)
(s271 0.0)
(s272 0.0)
(s273 0.0)
(s274 0.0)
(s275 0.0)
(s276 0.0)
(s277 0.0)
(s278 0.0)
(s279 0.0)
(s280 0.0)
(s281 0.0)
(s282 0.0)
(s283 0.0)
(s284 0.0)
(s285 0.0)
(s286 0.0)
(s287 0.0)
(s288 0.0)
(s289 0.0)
(s290 0.0)
(s291 0.0)
(s292 0.0)
(s293 0.0)
(s294 0.0)
(s295 0.0)
(s296 0.0)
(s297 0.0)
(s298 0.0)
(s299 0.0)
(s300 0.0)
(s301 0.0)
(s302 0.0)
(s303 0.0)
(s304 0.0)
(s305 0.0)
(s306 0.0)
(s307 0.0)
(s308 0.0)
(s309 0.0)
(s310 0.0)
(s311 0.0)
(s312 0.0)
(s313 0.0)
(s314 0.0)
(s315 0.0)
(s316 0.0)
(s317 0.0)
(s318 0.0)
(s319 0.0)
(s320 0.0)
(s321 0.0)
(s322 0.0)
(s323 0.0)
(s324 0.0)
(s325 0.0)
(s326 1.0)
(s327 1.0)
(s328 1.0)
(s329 1.0)
(s330 1.0)
(s331 1.0)
(s332 1.0)
(s333 1.0)
(s334 1.0)
(s335 1.0)
(s336 1.0)
(s337 1.0)
(s338 1.0)
(s339 0.0)
(s340 0.0)
(s341 0.0)
(s342 0.0)
(s343 0.0)
(s344 0.0)
(s345 0.0)
(s346 0.0)
(s347 1.0)
(s348 1.0)
(s349 1.0)
(s350 1.0)
(s351 1.0)
(s352 1.0)
(s353 1.0)
(s354 1.0)
(s355 1.0)
(s356 1.0)
(s357 1.0)
(s358 1.0)
(s359 1.0)
(s360 1.0)
(s361 1.0)
(s362 1.0)
(s363 1.0)
(s364 1.0)
(s365 1.0)
(s366 1.0)
(s367 1.0)
(s368 1.0)
(s369 1.0)
(s370 1.0)
(s371 1.0)
(s372 1.0)
(s373 1.0)
(s374 1.0)
(s375 0.0)
(s376 0.0)
(s377 0.0)
(s378 0.0)
(s379 0.0)
(s380 0.0)
(s381 timeout
org.smtlib.IParser$ParserException: Unbalanced parentheses at end of input")
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 441/1162 variables, and 4 constraints, problems are : Problem set: 0 solved, 1262 unsolved in 30026 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/441 constraints, ReadFeed: 0/83 constraints, PredecessorRefiner: 1262/1262 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1262 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/441 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1262 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/441 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1262 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/441 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1262 unsolved
At refinement iteration 3 (OVERLAPS) 721/1162 variables, 441/445 constraints. Problems are: Problem set: 0 solved, 1262 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1162 variables, 83/528 constraints. Problems are: Problem set: 0 solved, 1262 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1162/1162 variables, and 1790 constraints, problems are : Problem set: 0 solved, 1262 unsolved in 30837 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 441/441 constraints, ReadFeed: 83/83 constraints, PredecessorRefiner: 1262/1262 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 62365ms problems are : Problem set: 0 solved, 1262 unsolved
Search for dead transitions found 0 dead transitions in 62368ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 64382 ms. Remains : 441/441 places, 1264/1264 transitions.
[2026-05-25 10:09:15] [INFO ] Flow matrix only has 721 transitions (discarded 543 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {229=1, 339=1, 667=1, 716=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {252=1, 362=1, 562=1, 710=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 54 ms. (steps per millisecond=185 ) properties (out of 4) seen :[2, 2, 0, 0]
Current structural bounds on expressions (after cover walk) : Max Seen:[3, 309, 497, 1021] Max Struct:[+inf, +inf, +inf, +inf]
[2026-05-25 10:09:16] [INFO ] Flow matrix only has 721 transitions (discarded 543 similar events)
[2026-05-25 10:09:16] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[3, 309, 497, 1021] Max Struct:[+inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 2617 ms. (381 steps per ms)
BEST_FIRST walk for 4000003 steps (8 resets) in 2499 ms. (1600 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[3, 309, 497, 1021] Max Struct:[+inf, +inf, +inf, +inf]
[2026-05-25 10:09:21] [INFO ] Flow matrix only has 721 transitions (discarded 543 similar events)
[2026-05-25 10:09:21] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:09:21] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:09:21] [INFO ] [Real]Absence check using state equation in 127 ms returned sat
[2026-05-25 10:09:21] [INFO ] State equation strengthened by 83 read => feed constraints.
[2026-05-25 10:09:21] [INFO ] [Real]Added 83 Read/Feed constraints in 26 ms returned sat
[2026-05-25 10:09:21] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:09:21] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:09:21] [INFO ] [Nat]Absence check using state equation in 130 ms returned sat
[2026-05-25 10:09:21] [INFO ] [Nat]Added 83 Read/Feed constraints in 19 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:09:21] [INFO ] Deduced a trap composed of 73 places in 217 ms of which 26 ms to minimize.
[2026-05-25 10:09:21] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 270 ms
[2026-05-25 10:09:22] [INFO ] Computed and/alt/rep : 348/2064/341 causal constraints (skipped 378 transitions) in 68 ms.
[2026-05-25 10:09:22] [INFO ] Added : 23 causal constraints over 7 iterations in 676 ms. Result :sat
Minimization took 262 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:09:22] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:09:23] [INFO ] [Real]Absence check using state equation in 131 ms returned sat
[2026-05-25 10:09:23] [INFO ] [Real]Added 83 Read/Feed constraints in 26 ms returned sat
[2026-05-25 10:09:23] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:09:23] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 10:09:23] [INFO ] [Nat]Absence check using state equation in 139 ms returned sat
[2026-05-25 10:09:23] [INFO ] [Nat]Added 83 Read/Feed constraints in 18 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:09:23] [INFO ] Deduced a trap composed of 73 places in 220 ms of which 26 ms to minimize.
[2026-05-25 10:09:23] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 270 ms
[2026-05-25 10:09:23] [INFO ] Computed and/alt/rep : 348/2064/341 causal constraints (skipped 378 transitions) in 69 ms.
[2026-05-25 10:09:24] [INFO ] Added : 34 causal constraints over 8 iterations in 517 ms. Result :sat
Minimization took 339 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:09:24] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:09:24] [INFO ] [Real]Absence check using state equation in 131 ms returned sat
[2026-05-25 10:09:24] [INFO ] [Real]Added 83 Read/Feed constraints in 35 ms returned sat
[2026-05-25 10:09:24] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:09:24] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:09:24] [INFO ] [Nat]Absence check using state equation in 132 ms returned sat
[2026-05-25 10:09:24] [INFO ] [Nat]Added 83 Read/Feed constraints in 22 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:09:25] [INFO ] Deduced a trap composed of 73 places in 251 ms of which 42 ms to minimize.
[2026-05-25 10:09:25] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 300 ms
[2026-05-25 10:09:25] [INFO ] Computed and/alt/rep : 348/2064/341 causal constraints (skipped 378 transitions) in 69 ms.
[2026-05-25 10:09:25] [INFO ] Added : 11 causal constraints over 3 iterations in 246 ms. Result :sat
Minimization took 261 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:09:25] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 10:09:26] [INFO ] [Real]Absence check using state equation in 137 ms returned sat
[2026-05-25 10:09:26] [INFO ] [Real]Added 83 Read/Feed constraints in 29 ms returned sat
[2026-05-25 10:09:26] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:09:26] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 10:09:26] [INFO ] [Nat]Absence check using state equation in 144 ms returned sat
[2026-05-25 10:09:26] [INFO ] [Nat]Added 83 Read/Feed constraints in 23 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:09:26] [INFO ] Deduced a trap composed of 73 places in 250 ms of which 42 ms to minimize.
[2026-05-25 10:09:26] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 291 ms
[2026-05-25 10:09:26] [INFO ] Computed and/alt/rep : 348/2064/341 causal constraints (skipped 378 transitions) in 69 ms.
[2026-05-25 10:09:26] [INFO ] Added : 5 causal constraints over 2 iterations in 231 ms. Result :sat
Minimization took 251 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[3, 309, 497, 1021] Max Struct:[+inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[3, 309, 497, 1021] Max Struct:[+inf, +inf, +inf, +inf]
Support contains 4 out of 441 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 441/441 places, 1264/1264 transitions.
Applied a total of 0 rules in 52 ms. Remains 441 /441 variables (removed 0) and now considering 1264/1264 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 52 ms. Remains : 441/441 places, 1264/1264 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 441/441 places, 1264/1264 transitions.
Applied a total of 0 rules in 52 ms. Remains 441 /441 variables (removed 0) and now considering 1264/1264 (removed 0) transitions.
[2026-05-25 10:09:33] [INFO ] Flow matrix only has 721 transitions (discarded 543 similar events)
[2026-05-25 10:09:33] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 10:09:33] [INFO ] Implicit Places using invariants in 296 ms returned []
[2026-05-25 10:09:33] [INFO ] Flow matrix only has 721 transitions (discarded 543 similar events)
[2026-05-25 10:09:33] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 10:09:33] [INFO ] State equation strengthened by 83 read => feed constraints.
[2026-05-25 10:09:35] [INFO ] Implicit Places using invariants and state equation in 1652 ms returned []
Implicit Place search using SMT with State Equation took 1953 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-25 10:09:35] [INFO ] Redundant transitions in 27 ms returned []
Running 1262 sub problems to find dead transitions.
[2026-05-25 10:09:35] [INFO ] Flow matrix only has 721 transitions (discarded 543 similar events)
[2026-05-25 10:09:35] [INFO ] Invariant cache hit.
[2026-05-25 10:09:35] [INFO ] State equation strengthened by 83 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/441 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1262 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:09:45] [INFO ] Deduced a trap composed of 131 places in 153 ms of which 6 ms to minimize.
At refinement iteration 1 (INCLUDED_ONLY) 0/441 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1262 unsolved
Error getting values : (error "ParserException while parsing response: ((s0 0.0)
(s1 1.0)
(s2 0.0)
(s3 0.0)
(s4 0.0)
(s5 0.0)
(s6 0.0)
(s7 0.0)
(s8 0.0)
(s9 0.0)
(s10 0.0)
(s11 0.0)
(s12 0.0)
(s13 0.0)
(s14 0.0)
(s15 0.0)
(s16 0.0)
(s17 0.0)
(s18 0.0)
(s19 0.0)
(s20 0.0)
(s21 0.0)
(s22 0.0)
(s23 0.0)
(s24 0.0)
(s25 0.0)
(s26 1.0)
(s27 0.0)
(s28 0.0)
(s29 0.0)
(s30 0.0)
(s31 0.0)
(s32 0.0)
(s33 0.0)
(s34 1.0)
(s35 1.0)
(s36 1.0)
(s37 0.0)
(s38 0.0)
(s39 0.0)
(s40 0.0)
(s41 0.0)
(s42 0.0)
(s43 0.0)
(s44 0.0)
(s45 0.0)
(s46 0.0)
(s47 0.0)
(s48 0.0)
(s49 0.0)
(s50 0.0)
(s51 0.0)
(s52 0.0)
(s53 0.0)
(s54 0.0)
(s55 0.0)
(s56 0.0)
(s57 0.0)
(s58 0.0)
(s59 0.0)
(s60 0.0)
(s61 0.0)
(s62 0.0)
(s63 0.0)
(s64 0.0)
(s65 0.0)
(s66 0.0)
(s67 0.0)
(s68 0.0)
(s69 0.0)
(s70 0.0)
(s71 0.0)
(s72 0.0)
(s73 0.0)
(s74 0.0)
(s75 0.0)
(s76 0.0)
(s77 0.0)
(s78 0.0)
(s79 0.0)
(s80 0.0)
(s81 0.0)
(s82 0.0)
(s83 0.0)
(s84 0.0)
(s85 0.0)
(s86 0.0)
(s87 0.0)
(s88 0.0)
(s89 0.0)
(s90 0.0)
(s91 0.0)
(s92 0.0)
(s93 0.0)
(s94 0.0)
(s95 0.0)
(s96 0.0)
(s97 0.0)
(s98 0.0)
(s99 0.0)
(s100 0.0)
(s101 0.0)
(s102 0.0)
(s103 0.0)
(s104 0.0)
(s105 0.0)
(s106 0.0)
(s107 0.0)
(s108 0.0)
(s109 0.0)
(s110 0.0)
(s111 0.0)
(s112 0.0)
(s113 0.0)
(s114 0.0)
(s115 0.0)
(s116 0.0)
(s117 0.0)
(s118 0.0)
(s119 0.0)
(s120 0.0)
(s121 0.0)
(s122 0.0)
(s123 0.0)
(s124 0.0)
(s125 0.0)
(s126 0.0)
(s127 0.0)
(s128 0.0)
(s129 0.0)
(s130 0.0)
(s131 0.0)
(s132 0.0)
(s133 0.0)
(s134 0.0)
(s135 0.0)
(s136 0.0)
(s137 0.0)
(s138 0.0)
(s139 0.0)
(s140 0.0)
(s141 0.0)
(s142 0.0)
(s143 0.0)
(s144 0.0)
(s145 0.0)
(s146 0.0)
(s147 0.0)
(s148 0.0)
(s149 0.0)
(s150 0.0)
(s151 0.0)
(s152 0.0)
(s153 0.0)
(s154 0.0)
(s155 0.0)
(s156 0.0)
(s157 0.0)
(s158 0.0)
(s159 0.0)
(s160 0.0)
(s161 0.0)
(s162 0.0)
(s163 0.0)
(s164 0.0)
(s165 0.0)
(s166 0.0)
(s167 0.0)
(s168 0.0)
(s169 0.0)
(s170 0.0)
(s171 0.0)
(s172 0.0)
(s173 0.0)
(s174 0.0)
(s175 0.0)
(s176 0.0)
(s177 0.0)
(s178 0.0)
(s179 0.0)
(s180 0.0)
(s181 0.0)
(s182 0.0)
(s183 0.0)
(s184 0.0)
(s185 0.0)
(s186 0.0)
(s187 0.0)
(s188 0.0)
(s189 0.0)
(s190 0.0)
(s191 0.0)
(s192 0.0)
(s193 0.0)
(s194 0.0)
(s195 0.0)
(s196 0.0)
(s197 0.0)
(s198 0.0)
(s199 0.0)
(s200 0.0)
(s201 0.0)
(s202 0.0)
(s203 0.0)
(s204 0.0)
(s205 0.0)
(s206 0.0)
(s207 0.0)
(s208 0.0)
(s209 0.0)
(s210 0.0)
(s211 0.0)
(s212 0.0)
(s213 0.0)
(s214 0.0)
(s215 0.0)
(s216 0.0)
(s217 0.0)
(s218 0.0)
(s219 0.0)
(s220 0.0)
(s221 0.0)
(s222 0.0)
(s223 0.0)
(s224 0.0)
(s225 0.0)
(s226 0.0)
(s227 0.0)
(s228 0.0)
(s229 0.0)
(s230 0.0)
(s231 0.0)
(s232 0.0)
(s233 0.0)
(s234 0.0)
(s235 0.0)
(s236 0.0)
(s237 0.0)
(s238 0.0)
(s239 0.0)
(s240 0.0)
(s241 0.0)
(s242 0.0)
(s243 0.0)
(s244 0.0)
(s245 0.0)
(s246 0.0)
(s247 0.0)
(s248 0.0)
(s249 0.0)
(s250 0.0)
(s251 0.0)
(s252 0.0)
(s253 0.0)
(s254 0.0)
(s255 0.0)
(s256 0.0)
(s257 0.0)
(s258 0.0)
(s259 0.0)
(s260 0.0)
(s261 0.0)
(s262 0.0)
(s263 0.0)
(s264 0.0)
(s265 0.0)
(s266 0.0)
(s267 0.0)
(s268 0.0)
(s269 0.0)
(s270 0.0)
(s271 0.0)
(s272 0.0)
(s273 0.0)
(s274 0.0)
(s275 0.0)
(s276 0.0)
(s277 0.0)
(s278 0.0)
(s279 0.0)
(s280 0.0)
(s281 0.0)
(s282 0.0)
(s283 0.0)
(s284 0.0)
(s285 0.0)
(s286 0.0)
(s287 0.0)
(s288 0.0)
(s289 0.0)
(s290 0.0)
(s291 0.0)
(s292 0.0)
(s293 0.0)
(s294 0.0)
(s295 0.0)
(s296 0.0)
(s297 0.0)
(s298 0.0)
(s299 0.0)
(s300 0.0)
(s301 0.0)
(s302 0.0)
(s303 0.0)
(s304 0.0)
(s305 0.0)
(s306 0.0)
(s307 0.0)
(s308 0.0)
(s309 0.0)
(s310 0.0)
(s311 0.0)
(s312 0.0)
(s313 0.0)
(s314 0.0)
(s315 0.0)
(s316 0.0)
(s317 0.0)
(s318 0.0)
(s319 0.0)
(s320 0.0)
(s321 0.0)
(s322 0.0)
(s323 0.0)
(s324 0.0)
(s325 0.0)
(s326 1.0)
(s327 1.0)
(s328 1.0)
(s329 1.0)
(s330 1.0)
(s331 1.0)
(s332 1.0)
(s333 1.0)
(s334 1.0)
(s335 1.0)
(s336 1.0)
(s337 1.0)
(s338 1.0)
(s339 0.0)
(s340 0.0)
(s341 0.0)
(s342 0.0)
(s343 0.0)
(s344 0.0)
(s345 0.0)
(s346 0.0)
(s347 1.0)
(s348 1.0)
(s349 1.0)
(s350 1.0)
(s351 1.0)
(s352 1.0)
(s353 1.0)
(s354 1.0)
(s355 1.0)
(s356 1.0)
(s357 1.0)
(s358 1.0)
(s359 1.0)
(s360 1.0)
(s361 1.0)
(s362 1.0)
(s363 1.0)
(s364 1.0)
(s365 1.0)
(s366 1.0)
(s367 1.0)
(s368 1.0)
(s369 1.0)
(s370 timeout
org.smtlib.IParser$ParserException: Unbalanced parentheses at end of input")
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 441/1162 variables, and 4 constraints, problems are : Problem set: 0 solved, 1262 unsolved in 30022 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/441 constraints, ReadFeed: 0/83 constraints, PredecessorRefiner: 1262/1262 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1262 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/441 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1262 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/441 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1262 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/441 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1262 unsolved
At refinement iteration 3 (OVERLAPS) 721/1162 variables, 441/445 constraints. Problems are: Problem set: 0 solved, 1262 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1162 variables, 83/528 constraints. Problems are: Problem set: 0 solved, 1262 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1162/1162 variables, and 1790 constraints, problems are : Problem set: 0 solved, 1262 unsolved in 30845 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 441/441 constraints, ReadFeed: 83/83 constraints, PredecessorRefiner: 1262/1262 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 62352ms problems are : Problem set: 0 solved, 1262 unsolved
Search for dead transitions found 0 dead transitions in 62354ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 64394 ms. Remains : 441/441 places, 1264/1264 transitions.
[2026-05-25 10:10:37] [INFO ] Flow matrix only has 721 transitions (discarded 543 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {229=1, 339=1, 667=1, 716=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {252=1, 362=1, 562=1, 710=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 51 ms. (steps per millisecond=196 ) properties (out of 4) seen :[0, 2, 0, 0]
Current structural bounds on expressions (after cover walk) : Max Seen:[3, 309, 497, 1021] Max Struct:[+inf, +inf, +inf, +inf]
RANDOM walk for 40002 steps (8 resets) in 608 ms. (65 steps per ms) remains 4/4 properties
BEST_FIRST walk for 40003 steps (8 resets) in 131 ms. (303 steps per ms) remains 4/4 properties
BEST_FIRST walk for 40003 steps (8 resets) in 130 ms. (305 steps per ms) remains 4/4 properties
BEST_FIRST walk for 40003 steps (8 resets) in 129 ms. (307 steps per ms) remains 4/4 properties
BEST_FIRST walk for 40004 steps (8 resets) in 123 ms. (322 steps per ms) remains 4/4 properties
[2026-05-25 10:10:38] [INFO ] Flatten gal took : 137 ms
[2026-05-25 10:10:38] [INFO ] Flatten gal took : 75 ms
[2026-05-25 10:10:38] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality1111125604080028850.gal : 36 ms
[2026-05-25 10:10:38] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality7359146047264076987.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/ReachabilityCardinality1111125604080028850.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality7359146047264076987.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...328
Loading property file /tmp/ReachabilityCardinality7359146047264076987.prop.
SDD proceeding with computation,4 properties remain. new max is 4
SDD size :1 after 31
SDD proceeding with computation,4 properties remain. new max is 8
SDD size :31 after 1852
SDD proceeding with computation,4 properties remain. new max is 16
SDD size :1852 after 679623
Interrupted probabilistic random walk after 257167 steps, run timeout after 3001 ms. (steps per millisecond=85 ) properties seen :0 out of 4
Probabilistic random walk after 257167 steps, saw 157705 distinct states, run finished after 3004 ms. (steps per millisecond=85 ) properties seen :0
[2026-05-25 10:10:41] [INFO ] Flow matrix only has 721 transitions (discarded 543 similar events)
[2026-05-25 10:10:41] [INFO ] Invariant cache hit.
[2026-05-25 10:10:41] [INFO ] State equation strengthened by 83 read => feed constraints.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/4 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 1 (OVERLAPS) 9/13 variables, 4/4 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/13 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 3 (OVERLAPS) 376/389 variables, 11/15 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/389 variables, 0/15 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 5 (OVERLAPS) 12/401 variables, 2/17 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/401 variables, 2/19 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/401 variables, 0/19 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 8 (OVERLAPS) 627/1028 variables, 353/372 constraints. Problems are: Problem set: 0 solved, 4 unsolved
All remaining problems are real, not stopping.
At refinement iteration 9 (INCLUDED_ONLY) 0/1028 variables, 83/455 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/1028 variables, 0/455 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 11 (OVERLAPS) 62/1090 variables, 1/456 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/1090 variables, 0/456 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 13 (OVERLAPS) 69/1159 variables, 69/525 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/1159 variables, 0/525 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 15 (OVERLAPS) 3/1162 variables, 2/527 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/1162 variables, 0/527 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 17 (OVERLAPS) 0/1162 variables, 0/527 constraints. Problems are: Problem set: 0 solved, 4 unsolved
No progress, stopping.
After SMT solving in domain Real declared 1162/1162 variables, and 527 constraints, problems are : Problem set: 0 solved, 4 unsolved in 669 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 441/441 constraints, ReadFeed: 83/83 constraints, PredecessorRefiner: 4/4 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 4 unsolved
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/4 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 1 (OVERLAPS) 9/13 variables, 4/4 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/13 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 3 (OVERLAPS) 376/389 variables, 11/15 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/389 variables, 3/18 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/389 variables, 0/18 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 6 (OVERLAPS) 12/401 variables, 2/20 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/401 variables, 2/22 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/401 variables, 0/22 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 9 (OVERLAPS) 627/1028 variables, 353/375 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/1028 variables, 83/458 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/1028 variables, 1/459 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/1028 variables, 0/459 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 13 (OVERLAPS) 62/1090 variables, 1/460 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/1090 variables, 0/460 constraints. Problems are: Problem set: 0 solved, 4 unsolved
SDD proceeding with computation,4 properties remain. new max is 32
SDD size :679623 after 5.37273e+07
At refinement iteration 15 (OVERLAPS) 69/1159 variables, 69/529 constraints. Problems are: Problem set: 0 solved, 4 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:10:42] [INFO ] Deduced a trap along path composed of 3 places in 32 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:10:42] [INFO ] Deduced a trap along path composed of 3 places in 37 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:10:42] [INFO ] Deduced a trap along path composed of 3 places in 33 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:10:42] [INFO ] Deduced a trap along path composed of 3 places in 19 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:10:42] [INFO ] Deduced a trap along path composed of 3 places in 27 ms of which 0 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:10:43] [INFO ] Deduced a trap along path composed of 3 places in 21 ms of which 0 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:10:43] [INFO ] Deduced a trap along path composed of 3 places in 25 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:10:43] [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 10:10:43] [INFO ] Deduced a trap along path composed of 3 places in 15 ms of which 1 ms to minimize.
At refinement iteration 16 (INCLUDED_ONLY) 0/1159 variables, 9/538 constraints. Problems are: Problem set: 0 solved, 4 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:10:43] [INFO ] Deduced a trap composed of 131 places in 211 ms of which 7 ms to minimize.
At refinement iteration 17 (INCLUDED_ONLY) 0/1159 variables, 1/539 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/1159 variables, 0/539 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 19 (OVERLAPS) 3/1162 variables, 2/541 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/1162 variables, 0/541 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 21 (OVERLAPS) 0/1162 variables, 0/541 constraints. Problems are: Problem set: 0 solved, 4 unsolved
No progress, stopping.
After SMT solving in domain Int declared 1162/1162 variables, and 541 constraints, problems are : Problem set: 0 solved, 4 unsolved in 2137 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 441/441 constraints, ReadFeed: 83/83 constraints, PredecessorRefiner: 4/4 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 9/9 constraints]
After SMT, in 2820ms problems are : Problem set: 0 solved, 4 unsolved
Fused 4 Parikh solutions to 3 different solutions.
SDD proceeding with computation,4 properties remain. new max is 64
SDD size :5.37273e+07 after 1.80635e+08
SDD proceeding with computation,4 properties remain. new max is 128
SDD size :1.80635e+08 after 2.21989e+08
SDD proceeding with computation,4 properties remain. new max is 256
SDD size :2.21989e+08 after 3.64167e+08
SDD proceeding with computation,4 properties remain. new max is 512
SDD size :3.64167e+08 after 4.1658e+08
SDD proceeding with computation,4 properties remain. new max is 1024
SDD size :4.1658e+08 after 5.32213e+08
SDD proceeding with computation,4 properties remain. new max is 2048
SDD size :5.32213e+08 after 6.51285e+08
SDD proceeding with computation,4 properties remain. new max is 4096
SDD size :6.51285e+08 after 7.07926e+08
SDD proceeding with computation,4 properties remain. new max is 8192
SDD size :7.07926e+08 after 9.39441e+08
SDD proceeding with computation,4 properties remain. new max is 16384
SDD size :9.39441e+08 after 1.74819e+09
SDD proceeding with computation,4 properties remain. new max is 32768
SDD size :1.74819e+09 after 4.44758e+09
SDD proceeding with computation,4 properties remain. new max is 65536
SDD size :4.44758e+09 after 1.42917e+10
Parikh walk visited 1 properties in 44341 ms.
Support contains 3 out of 441 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 441/441 places, 1264/1264 transitions.
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 1 place count 440 transition count 1262
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 440 transition count 1262
Applied a total of 2 rules in 62 ms. Remains 440 /441 variables (removed 1) and now considering 1262/1264 (removed 2) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 62 ms. Remains : 440/441 places, 1262/1264 transitions.
RANDOM walk for 40000 steps (8 resets) in 238 ms. (167 steps per ms) remains 2/3 properties
Detected timeout of ITS tools.
BEST_FIRST walk for 40003 steps (8 resets) in 81 ms. (487 steps per ms) remains 2/2 properties
BEST_FIRST walk for 40003 steps (8 resets) in 81 ms. (487 steps per ms) remains 2/2 properties
[2026-05-25 10:11:28] [INFO ] Flow matrix only has 718 transitions (discarded 544 similar events)
// Phase 1: matrix 718 rows 440 cols
[2026-05-25 10:11:28] [INFO ] Computed 3 invariants in 2 ms
[2026-05-25 10:11:28] [INFO ] State equation strengthened by 81 read => feed constraints.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 1 (OVERLAPS) 4/6 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 3 (OVERLAPS) 12/18 variables, 4/6 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/18 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 5 (OVERLAPS) 16/34 variables, 6/12 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/34 variables, 0/12 constraints. Problems are: Problem set: 0 solved, 2 unsolved
[2026-05-25 10:11:28] [INFO ] Flatten gal took : 88 ms
[2026-05-25 10:11:28] [INFO ] Applying decomposition
At refinement iteration 7 (OVERLAPS) 371/405 variables, 11/23 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/405 variables, 2/25 constraints. Problems are: Problem set: 0 solved, 2 unsolved
All remaining problems are real, not stopping.
At refinement iteration 9 (INCLUDED_ONLY) 0/405 variables, 0/25 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 10 (OVERLAPS) 11/416 variables, 2/27 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/416 variables, 3/30 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/416 variables, 0/30 constraints. Problems are: Problem set: 0 solved, 2 unsolved
[2026-05-25 10:11:28] [INFO ] Flatten gal took : 71 ms
At refinement iteration 13 (OVERLAPS) 613/1029 variables, 346/376 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/1029 variables, 79/455 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/1029 variables, 0/455 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 16 (OVERLAPS) 62/1091 variables, 1/456 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/1091 variables, 0/456 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 18 (OVERLAPS) 67/1158 variables, 68/524 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/1158 variables, 0/524 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 20 (OVERLAPS) 0/1158 variables, 0/524 constraints. Problems are: Problem set: 0 solved, 2 unsolved
No progress, stopping.
After SMT solving in domain Real declared 1158/1158 variables, and 524 constraints, problems are : Problem set: 0 solved, 2 unsolved in 352 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 440/440 constraints, ReadFeed: 81/81 constraints, PredecessorRefiner: 2/2 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 2 unsolved
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/graph14341640312687209935.txt' '-o' '/tmp/graph14341640312687209935.bin' '-w' '/tmp/graph14341640312687209935.weights'
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/louvain-linux64' '/tmp/graph14341640312687209935.bin' '-l' '-1' '-v' '-w' '/tmp/graph14341640312687209935.weights' '-q' '0' '-e' '0.001'
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 1 (OVERLAPS) 4/6 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 2 unsolved
[2026-05-25 10:11:29] [INFO ] Decomposing Gal with order
At refinement iteration 3 (OVERLAPS) 12/18 variables, 4/6 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/18 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 5 (OVERLAPS) 16/34 variables, 6/12 constraints. Problems are: Problem set: 0 solved, 2 unsolved
[2026-05-25 10:11:29] [INFO ] Rewriting arrays to variables to allow decomposition.
At refinement iteration 6 (INCLUDED_ONLY) 0/34 variables, 0/12 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 7 (OVERLAPS) 371/405 variables, 11/23 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/405 variables, 2/25 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/405 variables, 2/27 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/405 variables, 0/27 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 11 (OVERLAPS) 11/416 variables, 2/29 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/416 variables, 3/32 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/416 variables, 0/32 constraints. Problems are: Problem set: 0 solved, 2 unsolved
[2026-05-25 10:11:29] [INFO ] Removed a total of 2172 redundant transitions.
[2026-05-25 10:11:29] [INFO ] Flatten gal took : 147 ms
At refinement iteration 14 (OVERLAPS) 613/1029 variables, 346/378 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/1029 variables, 79/457 constraints. Problems are: Problem set: 0 solved, 2 unsolved
[2026-05-25 10:11:29] [INFO ] Fuse similar labels procedure discarded/fused a total of 917 labels/synchronizations in 60 ms.
[2026-05-25 10:11:29] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality13119697017412233295.gal : 12 ms
[2026-05-25 10:11:29] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality10688074338319660948.prop : 3 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/ReachabilityCardinality13119697017412233295.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality10688074338319660948.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
At refinement iteration 16 (INCLUDED_ONLY) 0/1029 variables, 0/457 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 17 (OVERLAPS) 62/1091 variables, 1/458 constraints. Problems are: Problem set: 0 solved, 2 unsolved
Loading property file /tmp/ReachabilityCardinality10688074338319660948.prop.
At refinement iteration 18 (INCLUDED_ONLY) 0/1091 variables, 0/458 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 19 (OVERLAPS) 67/1158 variables, 68/526 constraints. Problems are: Problem set: 0 solved, 2 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:11:29] [INFO ] Deduced a trap along path composed of 3 places in 24 ms of which 0 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:11:29] [INFO ] Deduced a trap along path composed of 3 places in 18 ms of which 0 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:11:29] [INFO ] Deduced a trap along path composed of 3 places in 16 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:11:29] [INFO ] Deduced a trap along path composed of 3 places in 15 ms of which 1 ms to minimize.
At refinement iteration 20 (INCLUDED_ONLY) 0/1158 variables, 4/530 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/1158 variables, 0/530 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 22 (OVERLAPS) 0/1158 variables, 0/530 constraints. Problems are: Problem set: 0 solved, 2 unsolved
No progress, stopping.
After SMT solving in domain Int declared 1158/1158 variables, and 530 constraints, problems are : Problem set: 0 solved, 2 unsolved in 951 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 440/440 constraints, ReadFeed: 81/81 constraints, PredecessorRefiner: 2/2 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 4/4 constraints]
After SMT, in 1323ms problems are : Problem set: 0 solved, 2 unsolved
Fused 2 Parikh solutions to 1 different solutions.
Parikh walk visited 0 properties in 9191 ms.
Support contains 2 out of 440 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 440/440 places, 1262/1262 transitions.
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 1 place count 439 transition count 1260
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 439 transition count 1260
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 3 place count 438 transition count 1258
Iterating global reduction 0 with 1 rules applied. Total rules applied 4 place count 438 transition count 1258
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 5 place count 437 transition count 1254
Iterating global reduction 0 with 1 rules applied. Total rules applied 6 place count 437 transition count 1254
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 7 place count 436 transition count 1252
Iterating global reduction 0 with 1 rules applied. Total rules applied 8 place count 436 transition count 1252
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 9 place count 435 transition count 1250
Iterating global reduction 0 with 1 rules applied. Total rules applied 10 place count 435 transition count 1250
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 11 place count 434 transition count 1248
Iterating global reduction 0 with 1 rules applied. Total rules applied 12 place count 434 transition count 1248
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 13 place count 433 transition count 1246
Iterating global reduction 0 with 1 rules applied. Total rules applied 14 place count 433 transition count 1246
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 15 place count 432 transition count 1244
Iterating global reduction 0 with 1 rules applied. Total rules applied 16 place count 432 transition count 1244
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 17 place count 431 transition count 1242
Iterating global reduction 0 with 1 rules applied. Total rules applied 18 place count 431 transition count 1242
Applied a total of 18 rules in 133 ms. Remains 431 /440 variables (removed 9) and now considering 1242/1262 (removed 20) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 133 ms. Remains : 431/440 places, 1242/1262 transitions.
RANDOM walk for 40002 steps (8 resets) in 208 ms. (191 steps per ms) remains 2/2 properties
BEST_FIRST walk for 40004 steps (8 resets) in 86 ms. (459 steps per ms) remains 2/2 properties
BEST_FIRST walk for 40004 steps (8 resets) in 75 ms. (526 steps per ms) remains 2/2 properties
Interrupted probabilistic random walk after 348305 steps, run timeout after 3001 ms. (steps per millisecond=116 ) properties seen :0 out of 2
Probabilistic random walk after 348305 steps, saw 213586 distinct states, run finished after 3001 ms. (steps per millisecond=116 ) properties seen :0
[2026-05-25 10:11:42] [INFO ] Flow matrix only has 704 transitions (discarded 538 similar events)
// Phase 1: matrix 704 rows 431 cols
[2026-05-25 10:11:42] [INFO ] Computed 3 invariants in 3 ms
[2026-05-25 10:11:42] [INFO ] State equation strengthened by 78 read => feed constraints.
Starting Z3 with timeout 75.0 s and query timeout 7500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 1 (OVERLAPS) 4/6 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 3 (OVERLAPS) 12/18 variables, 4/6 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/18 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 5 (OVERLAPS) 14/32 variables, 6/12 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/32 variables, 0/12 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 7 (OVERLAPS) 360/392 variables, 9/21 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/392 variables, 2/23 constraints. Problems are: Problem set: 0 solved, 2 unsolved
All remaining problems are real, not stopping.
At refinement iteration 9 (INCLUDED_ONLY) 0/392 variables, 0/23 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 10 (OVERLAPS) 9/401 variables, 2/25 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/401 variables, 3/28 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/401 variables, 0/28 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 13 (OVERLAPS) 606/1007 variables, 340/368 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/1007 variables, 76/444 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/1007 variables, 0/444 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 16 (OVERLAPS) 62/1069 variables, 1/445 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/1069 variables, 0/445 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 18 (OVERLAPS) 66/1135 variables, 67/512 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/1135 variables, 0/512 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 20 (OVERLAPS) 0/1135 variables, 0/512 constraints. Problems are: Problem set: 0 solved, 2 unsolved
No progress, stopping.
After SMT solving in domain Real declared 1135/1135 variables, and 512 constraints, problems are : Problem set: 0 solved, 2 unsolved in 403 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 431/431 constraints, ReadFeed: 78/78 constraints, PredecessorRefiner: 2/2 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 2 unsolved
Starting Z3 with timeout 75.0 s and query timeout 7500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 1 (OVERLAPS) 4/6 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 3 (OVERLAPS) 12/18 variables, 4/6 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/18 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 5 (OVERLAPS) 14/32 variables, 6/12 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/32 variables, 0/12 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 7 (OVERLAPS) 360/392 variables, 9/21 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/392 variables, 2/23 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/392 variables, 2/25 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/392 variables, 0/25 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 11 (OVERLAPS) 9/401 variables, 2/27 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/401 variables, 3/30 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/401 variables, 0/30 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 14 (OVERLAPS) 606/1007 variables, 340/370 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/1007 variables, 76/446 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/1007 variables, 0/446 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 17 (OVERLAPS) 62/1069 variables, 1/447 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/1069 variables, 0/447 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 19 (OVERLAPS) 66/1135 variables, 67/514 constraints. Problems are: Problem set: 0 solved, 2 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:11:43] [INFO ] Deduced a trap along path composed of 3 places in 21 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:11:43] [INFO ] Deduced a trap along path composed of 3 places in 18 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:11:43] [INFO ] Deduced a trap along path composed of 3 places in 15 ms of which 0 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:11:43] [INFO ] Deduced a trap along path composed of 3 places in 13 ms of which 0 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:11:43] [INFO ] Deduced a trap along path composed of 3 places in 15 ms of which 0 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:11:43] [INFO ] Deduced a trap along path composed of 3 places in 21 ms of which 0 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:11:43] [INFO ] Deduced a trap along path composed of 3 places in 19 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:11:43] [INFO ] Deduced a trap along path composed of 3 places in 19 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:11:43] [INFO ] Deduced a trap along path composed of 3 places in 24 ms of which 1 ms to minimize.
At refinement iteration 20 (INCLUDED_ONLY) 0/1135 variables, 9/523 constraints. Problems are: Problem set: 0 solved, 2 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:11:43] [INFO ] Deduced a trap composed of 131 places in 168 ms of which 6 ms to minimize.
At refinement iteration 21 (INCLUDED_ONLY) 0/1135 variables, 1/524 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/1135 variables, 0/524 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 23 (OVERLAPS) 0/1135 variables, 0/524 constraints. Problems are: Problem set: 0 solved, 2 unsolved
No progress, stopping.
After SMT solving in domain Int declared 1135/1135 variables, and 524 constraints, problems are : Problem set: 0 solved, 2 unsolved in 1308 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 431/431 constraints, ReadFeed: 78/78 constraints, PredecessorRefiner: 2/2 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 9/9 constraints]
After SMT, in 1725ms problems are : Problem set: 0 solved, 2 unsolved
Parikh walk visited 0 properties in 18140 ms.
Support contains 2 out of 431 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 431/431 places, 1242/1242 transitions.
Applied a total of 0 rules in 49 ms. Remains 431 /431 variables (removed 0) and now considering 1242/1242 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 49 ms. Remains : 431/431 places, 1242/1242 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 431/431 places, 1242/1242 transitions.
Applied a total of 0 rules in 48 ms. Remains 431 /431 variables (removed 0) and now considering 1242/1242 (removed 0) transitions.
[2026-05-25 10:12:02] [INFO ] Flow matrix only has 704 transitions (discarded 538 similar events)
[2026-05-25 10:12:02] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 10:12:02] [INFO ] Implicit Places using invariants in 300 ms returned []
[2026-05-25 10:12:02] [INFO ] Flow matrix only has 704 transitions (discarded 538 similar events)
[2026-05-25 10:12:02] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 10:12:02] [INFO ] State equation strengthened by 78 read => feed constraints.
[2026-05-25 10:12:05] [INFO ] Implicit Places using invariants and state equation in 2449 ms returned []
Implicit Place search using SMT with State Equation took 2751 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-25 10:12:05] [INFO ] Redundant transitions in 76 ms returned []
Running 1240 sub problems to find dead transitions.
[2026-05-25 10:12:05] [INFO ] Flow matrix only has 704 transitions (discarded 538 similar events)
[2026-05-25 10:12:05] [INFO ] Invariant cache hit.
[2026-05-25 10:12:05] [INFO ] State equation strengthened by 78 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/431 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1240 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:12:15] [INFO ] Deduced a trap composed of 131 places in 149 ms of which 7 ms to minimize.
Detected timeout of ITS tools.
At refinement iteration 1 (INCLUDED_ONLY) 0/431 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1240 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 431/1135 variables, and 4 constraints, problems are : Problem set: 0 solved, 1240 unsolved in 30026 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/431 constraints, ReadFeed: 0/78 constraints, PredecessorRefiner: 1240/1240 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1240 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/431 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1240 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/431 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1240 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/431 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1240 unsolved
At refinement iteration 3 (OVERLAPS) 704/1135 variables, 431/435 constraints. Problems are: Problem set: 0 solved, 1240 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1135 variables, 78/513 constraints. Problems are: Problem set: 0 solved, 1240 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1135/1135 variables, and 1753 constraints, problems are : Problem set: 0 solved, 1240 unsolved in 30837 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 431/431 constraints, ReadFeed: 78/78 constraints, PredecessorRefiner: 1240/1240 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 62421ms problems are : Problem set: 0 solved, 1240 unsolved
Search for dead transitions found 0 dead transitions in 62425ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 65321 ms. Remains : 431/431 places, 1242/1242 transitions.
Current structural bounds on expressions (After reachability solving 0 queries.) : Max Seen:[3, 309, 497, 1021] Max Struct:[+inf, +inf, +inf, +inf]
Starting property specific reduction for FunctionPointer-PT-c004-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 10:13:07] [INFO ] Flow matrix only has 721 transitions (discarded 543 similar events)
// Phase 1: matrix 721 rows 441 cols
[2026-05-25 10:13:07] [INFO ] Computed 3 invariants in 7 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[+inf]
RANDOM walk for 10001 steps (2 resets) in 28 ms. (344 steps per ms)
BEST_FIRST walk for 10001 steps (2 resets) in 7 ms. (1250 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0] Max Struct:[+inf]
[2026-05-25 10:13:07] [INFO ] Flow matrix only has 721 transitions (discarded 543 similar events)
[2026-05-25 10:13:07] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 10:13:07] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 10:13:07] [INFO ] [Real]Absence check using state equation in 137 ms returned sat
[2026-05-25 10:13:07] [INFO ] State equation strengthened by 83 read => feed constraints.
[2026-05-25 10:13:07] [INFO ] [Real]Added 83 Read/Feed constraints in 26 ms returned sat
[2026-05-25 10:13:07] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 10:13:08] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 10:13:08] [INFO ] [Nat]Absence check using state equation in 139 ms returned sat
[2026-05-25 10:13:08] [INFO ] [Nat]Added 83 Read/Feed constraints in 25 ms returned sat
[2026-05-25 10:13:08] [INFO ] Computed and/alt/rep : 348/2064/341 causal constraints (skipped 378 transitions) in 67 ms.
[2026-05-25 10:13:08] [INFO ] Added : 11 causal constraints over 3 iterations in 245 ms. Result :sat
Minimization took 271 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0] Max Struct:[+inf]
Support contains 1 out of 441 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 441/441 places, 1264/1264 transitions.
Discarding 3 places :
Symmetric choice reduction at 0 with 3 rule applications. Total rules 3 place count 438 transition count 1258
Iterating global reduction 0 with 3 rules applied. Total rules applied 6 place count 438 transition count 1258
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 0 with 2 rules applied. Total rules applied 8 place count 438 transition count 1256
Discarding 2 places :
Symmetric choice reduction at 1 with 2 rule applications. Total rules 10 place count 436 transition count 1250
Iterating global reduction 1 with 2 rules applied. Total rules applied 12 place count 436 transition count 1250
Discarding 2 places :
Symmetric choice reduction at 1 with 2 rule applications. Total rules 14 place count 434 transition count 1246
Iterating global reduction 1 with 2 rules applied. Total rules applied 16 place count 434 transition count 1246
Discarding 2 places :
Symmetric choice reduction at 1 with 2 rule applications. Total rules 18 place count 432 transition count 1240
Iterating global reduction 1 with 2 rules applied. Total rules applied 20 place count 432 transition count 1240
Discarding 2 places :
Symmetric choice reduction at 1 with 2 rule applications. Total rules 22 place count 430 transition count 1236
Iterating global reduction 1 with 2 rules applied. Total rules applied 24 place count 430 transition count 1236
Discarding 2 places :
Symmetric choice reduction at 1 with 2 rule applications. Total rules 26 place count 428 transition count 1232
Iterating global reduction 1 with 2 rules applied. Total rules applied 28 place count 428 transition count 1232
Discarding 2 places :
Symmetric choice reduction at 1 with 2 rule applications. Total rules 30 place count 426 transition count 1228
Iterating global reduction 1 with 2 rules applied. Total rules applied 32 place count 426 transition count 1228
Discarding 2 places :
Symmetric choice reduction at 1 with 2 rule applications. Total rules 34 place count 424 transition count 1224
Iterating global reduction 1 with 2 rules applied. Total rules applied 36 place count 424 transition count 1224
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 37 place count 423 transition count 1222
Iterating global reduction 1 with 1 rules applied. Total rules applied 38 place count 423 transition count 1222
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 39 place count 422 transition count 1220
Iterating global reduction 1 with 1 rules applied. Total rules applied 40 place count 422 transition count 1220
Applied a total of 40 rules in 156 ms. Remains 422 /441 variables (removed 19) and now considering 1220/1264 (removed 44) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 156 ms. Remains : 422/441 places, 1220/1264 transitions.
[2026-05-25 10:13:08] [INFO ] Flow matrix only has 689 transitions (discarded 531 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {228=1, 320=1, 518=1, 684=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {252=1, 344=1, 670=1, 688=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 48 ms. (steps per millisecond=208 ) properties (out of 1) seen :[0]
Current structural bounds on expressions (after cover walk) : Max Seen:[0] Max Struct:[+inf]
[2026-05-25 10:13:09] [INFO ] Flow matrix only has 689 transitions (discarded 531 similar events)
// Phase 1: matrix 689 rows 422 cols
[2026-05-25 10:13:09] [INFO ] Computed 3 invariants in 8 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[+inf]
RANDOM walk for 1000001 steps (2 resets) in 2481 ms. (402 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 626 ms. (1594 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0] Max Struct:[+inf]
[2026-05-25 10:13:12] [INFO ] Flow matrix only has 689 transitions (discarded 531 similar events)
[2026-05-25 10:13:12] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:13:12] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:13:12] [INFO ] [Real]Absence check using state equation in 135 ms returned sat
[2026-05-25 10:13:12] [INFO ] State equation strengthened by 75 read => feed constraints.
[2026-05-25 10:13:12] [INFO ] [Real]Added 75 Read/Feed constraints in 23 ms returned sat
[2026-05-25 10:13:12] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:13:12] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:13:12] [INFO ] [Nat]Absence check using state equation in 134 ms returned sat
[2026-05-25 10:13:12] [INFO ] [Nat]Added 75 Read/Feed constraints in 27 ms returned sat
[2026-05-25 10:13:12] [INFO ] Computed and/alt/rep : 332/1248/332 causal constraints (skipped 355 transitions) in 66 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:13:13] [INFO ] Deduced a trap composed of 70 places in 215 ms of which 25 ms to minimize.
[2026-05-25 10:13:13] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 277 ms
[2026-05-25 10:13:13] [INFO ] Added : 4 causal constraints over 1 iterations in 469 ms. Result :sat
Minimization took 240 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0] Max Struct:[+inf]
Support contains 1 out of 422 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 422/422 places, 1220/1220 transitions.
Applied a total of 0 rules in 49 ms. Remains 422 /422 variables (removed 0) and now considering 1220/1220 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 49 ms. Remains : 422/422 places, 1220/1220 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 422/422 places, 1220/1220 transitions.
Applied a total of 0 rules in 49 ms. Remains 422 /422 variables (removed 0) and now considering 1220/1220 (removed 0) transitions.
[2026-05-25 10:13:13] [INFO ] Flow matrix only has 689 transitions (discarded 531 similar events)
[2026-05-25 10:13:13] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 10:13:13] [INFO ] Implicit Places using invariants in 292 ms returned []
[2026-05-25 10:13:13] [INFO ] Flow matrix only has 689 transitions (discarded 531 similar events)
[2026-05-25 10:13:13] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 10:13:14] [INFO ] State equation strengthened by 75 read => feed constraints.
[2026-05-25 10:13:15] [INFO ] Implicit Places using invariants and state equation in 1751 ms returned []
Implicit Place search using SMT with State Equation took 2045 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-25 10:13:15] [INFO ] Redundant transitions in 30 ms returned []
Running 1218 sub problems to find dead transitions.
[2026-05-25 10:13:15] [INFO ] Flow matrix only has 689 transitions (discarded 531 similar events)
[2026-05-25 10:13:15] [INFO ] Invariant cache hit.
[2026-05-25 10:13:15] [INFO ] State equation strengthened by 75 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/422 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1218 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:13:25] [INFO ] Deduced a trap composed of 131 places in 150 ms of which 6 ms to minimize.
At refinement iteration 1 (INCLUDED_ONLY) 0/422 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1218 unsolved
Error getting values : (error "ParserException while parsing response: (timeout
org.smtlib.IParser$ParserException: Unbalanced parentheses at end of input")
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 422/1111 variables, and 4 constraints, problems are : Problem set: 0 solved, 1218 unsolved in 30021 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/422 constraints, ReadFeed: 0/75 constraints, PredecessorRefiner: 1218/1218 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1218 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/422 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1218 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/422 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1218 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/422 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1218 unsolved
At refinement iteration 3 (OVERLAPS) 689/1111 variables, 422/426 constraints. Problems are: Problem set: 0 solved, 1218 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1111 variables, 75/501 constraints. Problems are: Problem set: 0 solved, 1218 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1111/1111 variables, and 1719 constraints, problems are : Problem set: 0 solved, 1218 unsolved in 30802 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 422/422 constraints, ReadFeed: 75/75 constraints, PredecessorRefiner: 1218/1218 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 62429ms problems are : Problem set: 0 solved, 1218 unsolved
Search for dead transitions found 0 dead transitions in 62432ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 64562 ms. Remains : 422/422 places, 1220/1220 transitions.
[2026-05-25 10:14:18] [INFO ] Flow matrix only has 689 transitions (discarded 531 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {228=1, 320=1, 518=1, 684=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {252=1, 344=1, 670=1, 688=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 46 ms. (steps per millisecond=217 ) properties (out of 1) seen :[0]
Current structural bounds on expressions (after cover walk) : Max Seen:[0] Max Struct:[+inf]
[2026-05-25 10:14:18] [INFO ] Flatten gal took : 43 ms
RANDOM walk for 40000 steps (8 resets) in 235 ms. (169 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (8 resets) in 61 ms. (645 steps per ms) remains 1/1 properties
[2026-05-25 10:14:18] [INFO ] Flatten gal took : 62 ms
[2026-05-25 10:14:18] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality5767918922554942600.gal : 26 ms
[2026-05-25 10:14:18] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality7044350016413287974.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/ReachabilityCardinality5767918922554942600.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality7044350016413287974.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...328
Loading property file /tmp/ReachabilityCardinality7044350016413287974.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 1862
SDD proceeding with computation,1 properties remain. new max is 16
SDD size :1862 after 695653
Interrupted probabilistic random walk after 465008 steps, run timeout after 3001 ms. (steps per millisecond=154 ) properties seen :0 out of 1
Probabilistic random walk after 465008 steps, saw 285141 distinct states, run finished after 3001 ms. (steps per millisecond=154 ) properties seen :0
[2026-05-25 10:14:21] [INFO ] Flow matrix only has 689 transitions (discarded 531 similar events)
[2026-05-25 10:14:21] [INFO ] Invariant cache hit.
[2026-05-25 10:14:21] [INFO ] State equation strengthened by 75 read => feed constraints.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 2/3 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/3 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 5/8 variables, 2/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/8 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 7/15 variables, 3/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/15 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 10/25 variables, 4/10 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/25 variables, 0/10 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 352/377 variables, 8/18 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/377 variables, 2/20 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/377 variables, 0/20 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 7/384 variables, 2/22 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/384 variables, 3/25 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/384 variables, 0/25 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 600/984 variables, 335/360 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/984 variables, 73/433 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/984 variables, 0/433 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 62/1046 variables, 1/434 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/1046 variables, 0/434 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (OVERLAPS) 65/1111 variables, 66/500 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/1111 variables, 0/500 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (OVERLAPS) 0/1111 variables, 0/500 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 1111/1111 variables, and 500 constraints, problems are : Problem set: 0 solved, 1 unsolved in 247 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 422/422 constraints, ReadFeed: 75/75 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 2/3 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/3 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 5/8 variables, 2/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/8 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 7/15 variables, 3/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/15 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 10/25 variables, 4/10 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/25 variables, 0/10 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 352/377 variables, 8/18 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/377 variables, 2/20 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/377 variables, 1/21 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/377 variables, 0/21 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 7/384 variables, 2/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/384 variables, 3/26 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/384 variables, 0/26 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 600/984 variables, 335/361 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/984 variables, 73/434 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/984 variables, 0/434 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 62/1046 variables, 1/435 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/1046 variables, 0/435 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 65/1111 variables, 66/501 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:14:22] [INFO ] Deduced a trap along path composed of 3 places in 22 ms of which 1 ms to minimize.
At refinement iteration 22 (INCLUDED_ONLY) 0/1111 variables, 1/502 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (INCLUDED_ONLY) 0/1111 variables, 0/502 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (OVERLAPS) 0/1111 variables, 0/502 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 1111/1111 variables, and 502 constraints, problems are : Problem set: 0 solved, 1 unsolved in 425 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 422/422 constraints, ReadFeed: 75/75 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 1/1 constraints]
After SMT, in 681ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 0 ms.
Support contains 1 out of 422 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 422/422 places, 1220/1220 transitions.
Applied a total of 0 rules in 48 ms. Remains 422 /422 variables (removed 0) and now considering 1220/1220 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 50 ms. Remains : 422/422 places, 1220/1220 transitions.
RANDOM walk for 40005 steps (8 resets) in 223 ms. (178 steps per ms) remains 1/1 properties
BEST_FIRST walk for 35011 steps (7 resets) in 47 ms. (729 steps per ms) remains 0/1 properties
ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
Current structural bounds on expressions (After reachability solving 0 queries.) : Max Seen:[0] Max Struct:[+inf]
Ending property specific reduction for FunctionPointer-PT-c004-UpperBounds-02 in 74741 ms.
Starting property specific reduction for FunctionPointer-PT-c004-UpperBounds-11
Current structural bounds on expressions (Initially) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (Adding known information on max bounds.) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (Before main loop) : Max Seen:[0] Max Struct:[+inf]
[2026-05-25 10:14:22] [INFO ] Flow matrix only has 721 transitions (discarded 543 similar events)
// Phase 1: matrix 721 rows 441 cols
[2026-05-25 10:14:22] [INFO ] Computed 3 invariants in 4 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[+inf]
RANDOM walk for 10000 steps (2 resets) in 33 ms. (294 steps per ms)
BEST_FIRST walk for 10001 steps (2 resets) in 8 ms. (1111 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[1] Max Struct:[+inf]
[2026-05-25 10:14:22] [INFO ] Flow matrix only has 721 transitions (discarded 543 similar events)
[2026-05-25 10:14:22] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 10:14:22] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:14:22] [INFO ] [Real]Absence check using state equation in 134 ms returned sat
[2026-05-25 10:14:22] [INFO ] State equation strengthened by 83 read => feed constraints.
[2026-05-25 10:14:22] [INFO ] [Real]Added 83 Read/Feed constraints in 32 ms returned sat
[2026-05-25 10:14:22] [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 10:14:22] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 10:14:22] [INFO ] [Nat]Absence check using state equation in 132 ms returned sat
[2026-05-25 10:14:22] [INFO ] [Nat]Added 83 Read/Feed constraints in 19 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:14:23] [INFO ] Deduced a trap composed of 73 places in 244 ms of which 27 ms to minimize.
[2026-05-25 10:14:23] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 298 ms
[2026-05-25 10:14:23] [INFO ] Computed and/alt/rep : 348/2064/341 causal constraints (skipped 378 transitions) in 81 ms.
[2026-05-25 10:14:23] [INFO ] Added : 31 causal constraints over 8 iterations in 667 ms. Result :sat
Minimization took 259 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[1] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[1] Max Struct:[+inf]
Support contains 1 out of 441 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 441/441 places, 1264/1264 transitions.
Discarding 3 places :
Symmetric choice reduction at 0 with 3 rule applications. Total rules 3 place count 438 transition count 1258
Iterating global reduction 0 with 3 rules applied. Total rules applied 6 place count 438 transition count 1258
Discarding 2 places :
Symmetric choice reduction at 0 with 2 rule applications. Total rules 8 place count 436 transition count 1252
Iterating global reduction 0 with 2 rules applied. Total rules applied 10 place count 436 transition count 1252
Discarding 2 places :
Symmetric choice reduction at 0 with 2 rule applications. Total rules 12 place count 434 transition count 1246
Iterating global reduction 0 with 2 rules applied. Total rules applied 14 place count 434 transition count 1246
Discarding 2 places :
Symmetric choice reduction at 0 with 2 rule applications. Total rules 16 place count 432 transition count 1242
Iterating global reduction 0 with 2 rules applied. Total rules applied 18 place count 432 transition count 1242
Discarding 2 places :
Symmetric choice reduction at 0 with 2 rule applications. Total rules 20 place count 430 transition count 1238
Iterating global reduction 0 with 2 rules applied. Total rules applied 22 place count 430 transition count 1238
Discarding 2 places :
Symmetric choice reduction at 0 with 2 rule applications. Total rules 24 place count 428 transition count 1234
Iterating global reduction 0 with 2 rules applied. Total rules applied 26 place count 428 transition count 1234
Discarding 2 places :
Symmetric choice reduction at 0 with 2 rule applications. Total rules 28 place count 426 transition count 1230
Iterating global reduction 0 with 2 rules applied. Total rules applied 30 place count 426 transition count 1230
Discarding 2 places :
Symmetric choice reduction at 0 with 2 rule applications. Total rules 32 place count 424 transition count 1226
Iterating global reduction 0 with 2 rules applied. Total rules applied 34 place count 424 transition count 1226
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 35 place count 423 transition count 1224
Iterating global reduction 0 with 1 rules applied. Total rules applied 36 place count 423 transition count 1224
Applied a total of 36 rules in 159 ms. Remains 423 /441 variables (removed 18) and now considering 1224/1264 (removed 40) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 159 ms. Remains : 423/441 places, 1224/1264 transitions.
[2026-05-25 10:14:24] [INFO ] Flow matrix only has 691 transitions (discarded 533 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {203=1, 297=1, 495=1, 686=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {252=1, 346=1, 544=1, 687=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 41 ms. (steps per millisecond=243 ) properties (out of 1) seen :[0]
Current structural bounds on expressions (after cover walk) : Max Seen:[1] Max Struct:[+inf]
[2026-05-25 10:14:24] [INFO ] Flow matrix only has 691 transitions (discarded 533 similar events)
// Phase 1: matrix 691 rows 423 cols
[2026-05-25 10:14:24] [INFO ] Computed 3 invariants in 6 ms
Current structural bounds on expressions (after invariants) : Max Seen:[1] Max Struct:[+inf]
RANDOM walk for 1000001 steps (2 resets) in 2931 ms. (341 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 728 ms. (1371 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[278] Max Struct:[+inf]
[2026-05-25 10:14:28] [INFO ] Flow matrix only has 691 transitions (discarded 533 similar events)
[2026-05-25 10:14:28] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:14:28] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:14:28] [INFO ] [Real]Absence check using state equation in 201 ms returned sat
[2026-05-25 10:14:28] [INFO ] State equation strengthened by 75 read => feed constraints.
[2026-05-25 10:14:28] [INFO ] [Real]Added 75 Read/Feed constraints in 44 ms returned sat
[2026-05-25 10:14:28] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:14:28] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 10:14:29] [INFO ] [Nat]Absence check using state equation in 153 ms returned sat
[2026-05-25 10:14:29] [INFO ] [Nat]Added 75 Read/Feed constraints in 31 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:14:29] [INFO ] Deduced a trap composed of 70 places in 242 ms of which 34 ms to minimize.
[2026-05-25 10:14:29] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 310 ms
[2026-05-25 10:14:29] [INFO ] Computed and/alt/rep : 339/1255/332 causal constraints (skipped 357 transitions) in 212 ms.
[2026-05-25 10:14:29] [INFO ] Added : 26 causal constraints over 6 iterations in 578 ms. Result :sat
Minimization took 239 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[278] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[278] Max Struct:[+inf]
Support contains 1 out of 423 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 423/423 places, 1224/1224 transitions.
Applied a total of 0 rules in 335 ms. Remains 423 /423 variables (removed 0) and now considering 1224/1224 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 336 ms. Remains : 423/423 places, 1224/1224 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 423/423 places, 1224/1224 transitions.
Applied a total of 0 rules in 277 ms. Remains 423 /423 variables (removed 0) and now considering 1224/1224 (removed 0) transitions.
[2026-05-25 10:14:32] [INFO ] Flow matrix only has 691 transitions (discarded 533 similar events)
[2026-05-25 10:14:32] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 10:14:32] [INFO ] Implicit Places using invariants in 456 ms returned []
[2026-05-25 10:14:32] [INFO ] Flow matrix only has 691 transitions (discarded 533 similar events)
[2026-05-25 10:14:32] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 10:14:33] [INFO ] State equation strengthened by 75 read => feed constraints.
[2026-05-25 10:14:34] [INFO ] Implicit Places using invariants and state equation in 1877 ms returned []
Implicit Place search using SMT with State Equation took 2340 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-25 10:14:34] [INFO ] Redundant transitions in 175 ms returned []
Running 1222 sub problems to find dead transitions.
[2026-05-25 10:14:34] [INFO ] Flow matrix only has 691 transitions (discarded 533 similar events)
[2026-05-25 10:14:34] [INFO ] Invariant cache hit.
[2026-05-25 10:14:34] [INFO ] State equation strengthened by 75 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/423 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1222 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:14:45] [INFO ] Deduced a trap composed of 131 places in 166 ms of which 6 ms to minimize.
At refinement iteration 1 (INCLUDED_ONLY) 0/423 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1222 unsolved
(s188 0.0timeout
^^^^^^^^^^
(error "Invalid token: 0.0timeout")
Error getting values : (error "ParserException while parsing response: ((s0 0.0)
(s1 1.0)
(s2 0.0)
(s3 0.0)
(s4 0.0)
(s5 0.0)
(s6 0.0)
(s7 0.0)
(s8 0.0)
(s9 0.0)
(s10 0.0)
(s11 0.0)
(s12 0.0)
(s13 0.0)
(s14 0.0)
(s15 0.0)
(s16 0.0)
(s17 0.0)
(s18 0.0)
(s19 0.0)
(s20 0.0)
(s21 0.0)
(s22 0.0)
(s23 0.0)
(s24 0.0)
(s25 0.0)
(s26 0.0)
(s27 0.0)
(s28 0.0)
(s29 0.0)
(s30 0.0)
(s31 0.0)
(s32 0.0)
(s33 0.0)
(s34 0.0)
(s35 0.0)
(s36 0.0)
(s37 0.0)
(s38 0.0)
(s39 0.0)
(s40 0.0)
(s41 0.0)
(s42 0.0)
(s43 0.0)
(s44 0.0)
(s45 0.0)
(s46 0.0)
(s47 0.0)
(s48 0.0)
(s49 0.0)
(s50 0.0)
(s51 0.0)
(s52 0.0)
(s53 0.0)
(s54 0.0)
(s55 0.0)
(s56 0.0)
(s57 0.0)
(s58 0.0)
(s59 0.0)
(s60 0.0)
(s61 0.0)
(s62 0.0)
(s63 0.0)
(s64 0.0)
(s65 0.0)
(s66 0.0)
(s67 0.0)
(s68 0.0)
(s69 0.0)
(s70 0.0)
(s71 0.0)
(s72 0.0)
(s73 0.0)
(s74 0.0)
(s75 0.0)
(s76 0.0)
(s77 0.0)
(s78 0.0)
(s79 0.0)
(s80 0.0)
(s81 0.0)
(s82 0.0)
(s83 0.0)
(s84 0.0)
(s85 0.0)
(s86 0.0)
(s87 0.0)
(s88 0.0)
(s89 0.0)
(s90 0.0)
(s91 0.0)
(s92 0.0)
(s93 0.0)
(s94 1.0)
(s95 0.0)
(s96 1.0)
(s97 0.0)
(s98 0.0)
(s99 0.0)
(s100 1.0)
(s101 0.0)
(s102 1.0)
(s103 0.0)
(s104 0.0)
(s105 0.0)
(s106 0.0)
(s107 0.0)
(s108 0.0)
(s109 0.0)
(s110 0.0)
(s111 0.0)
(s112 0.0)
(s113 0.0)
(s114 0.0)
(s115 0.0)
(s116 0.0)
(s117 0.0)
(s118 0.0)
(s119 0.0)
(s120 0.0)
(s121 0.0)
(s122 0.0)
(s123 0.0)
(s124 0.0)
(s125 0.0)
(s126 0.0)
(s127 0.0)
(s128 0.0)
(s129 0.0)
(s130 0.0)
(s131 0.0)
(s132 0.0)
(s133 0.0)
(s134 0.0)
(s135 0.0)
(s136 0.0)
(s137 0.0)
(s138 0.0)
(s139 0.0)
(s140 0.0)
(s141 0.0)
(s142 0.0)
(s143 0.0)
(s144 0.0)
(s145 0.0)
(s146 0.0)
(s147 0.0)
(s148 0.0)
(s149 0.0)
(s150 0.0)
(s151 0.0)
(s152 0.0)
(s153 0.0)
(s154 0.0)
(s155 0.0)
(s156 0.0)
(s157 0.0)
(s158 0.0)
(s159 0.0)
(s160 0.0)
(s161 0.0)
(s162 0.0)
(s163 0.0)
(s164 0.0)
(s165 0.0)
(s166 0.0)
(s167 0.0)
(s168 0.0)
(s169 0.0)
(s170 0.0)
(s171 0.0)
(s172 0.0)
(s173 0.0)
(s174 0.0)
(s175 0.0)
(s176 0.0)
(s177 0.0)
(s178 0.0)
(s179 0.0)
(s180 0.0)
(s181 0.0)
(s182 0.0)
(s183 0.0)
(s184 0.0)
(s185 0.0)
(s186 0.0)
(s187 0.0)
(s188 0.0timeout
org.smtlib.IParser$ParserException: Unbalanced parentheses at end of input")
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 423/1114 variables, and 4 constraints, problems are : Problem set: 0 solved, 1222 unsolved in 30021 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/423 constraints, ReadFeed: 0/75 constraints, PredecessorRefiner: 1222/1222 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1222 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/423 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1222 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/423 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1222 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/423 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1222 unsolved
At refinement iteration 3 (OVERLAPS) 691/1114 variables, 423/427 constraints. Problems are: Problem set: 0 solved, 1222 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1114 variables, 75/502 constraints. Problems are: Problem set: 0 solved, 1222 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1114/1114 variables, and 1724 constraints, problems are : Problem set: 0 solved, 1222 unsolved in 30814 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 423/423 constraints, ReadFeed: 75/75 constraints, PredecessorRefiner: 1222/1222 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 63034ms problems are : Problem set: 0 solved, 1222 unsolved
Search for dead transitions found 0 dead transitions in 63049ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 65882 ms. Remains : 423/423 places, 1224/1224 transitions.
[2026-05-25 10:15:38] [INFO ] Flow matrix only has 691 transitions (discarded 533 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {203=1, 297=1, 495=1, 686=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {252=1, 346=1, 544=1, 687=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 261 ms. (steps per millisecond=38 ) properties (out of 1) seen :[2]
Current structural bounds on expressions (after cover walk) : Max Seen:[278] Max Struct:[+inf]
[2026-05-25 10:15:38] [INFO ] Flow matrix only has 691 transitions (discarded 533 similar events)
[2026-05-25 10:15:38] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[278] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 2887 ms. (346 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 650 ms. (1536 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[300] Max Struct:[+inf]
[2026-05-25 10:15:42] [INFO ] Flow matrix only has 691 transitions (discarded 533 similar events)
[2026-05-25 10:15:42] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:15:42] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 10:15:42] [INFO ] [Real]Absence check using state equation in 139 ms returned sat
[2026-05-25 10:15:42] [INFO ] State equation strengthened by 75 read => feed constraints.
[2026-05-25 10:15:42] [INFO ] [Real]Added 75 Read/Feed constraints in 27 ms returned sat
[2026-05-25 10:15:42] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:15:42] [INFO ] [Nat]Absence check using 3 positive place invariants in 6 ms returned sat
[2026-05-25 10:15:42] [INFO ] [Nat]Absence check using state equation in 131 ms returned sat
[2026-05-25 10:15:42] [INFO ] [Nat]Added 75 Read/Feed constraints in 30 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:15:42] [INFO ] Deduced a trap composed of 70 places in 216 ms of which 34 ms to minimize.
[2026-05-25 10:15:42] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 270 ms
[2026-05-25 10:15:42] [INFO ] Computed and/alt/rep : 339/1255/332 causal constraints (skipped 357 transitions) in 162 ms.
[2026-05-25 10:15:43] [INFO ] Added : 26 causal constraints over 6 iterations in 534 ms. Result :sat
Minimization took 244 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[300] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[300] Max Struct:[+inf]
Support contains 1 out of 423 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 423/423 places, 1224/1224 transitions.
Applied a total of 0 rules in 268 ms. Remains 423 /423 variables (removed 0) and now considering 1224/1224 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 268 ms. Remains : 423/423 places, 1224/1224 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 423/423 places, 1224/1224 transitions.
Applied a total of 0 rules in 248 ms. Remains 423 /423 variables (removed 0) and now considering 1224/1224 (removed 0) transitions.
[2026-05-25 10:15:45] [INFO ] Flow matrix only has 691 transitions (discarded 533 similar events)
[2026-05-25 10:15:45] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 10:15:46] [INFO ] Implicit Places using invariants in 303 ms returned []
[2026-05-25 10:15:46] [INFO ] Flow matrix only has 691 transitions (discarded 533 similar events)
[2026-05-25 10:15:46] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 10:15:46] [INFO ] State equation strengthened by 75 read => feed constraints.
[2026-05-25 10:15:47] [INFO ] Implicit Places using invariants and state equation in 1834 ms returned []
Implicit Place search using SMT with State Equation took 2140 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-25 10:15:48] [INFO ] Redundant transitions in 114 ms returned []
Running 1222 sub problems to find dead transitions.
[2026-05-25 10:15:48] [INFO ] Flow matrix only has 691 transitions (discarded 533 similar events)
[2026-05-25 10:15:48] [INFO ] Invariant cache hit.
[2026-05-25 10:15:48] [INFO ] State equation strengthened by 75 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/423 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1222 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:15:57] [INFO ] Deduced a trap composed of 131 places in 143 ms of which 6 ms to minimize.
At refinement iteration 1 (INCLUDED_ONLY) 0/423 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1222 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 423/1114 variables, and 4 constraints, problems are : Problem set: 0 solved, 1222 unsolved in 30022 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/423 constraints, ReadFeed: 0/75 constraints, PredecessorRefiner: 1222/1222 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1222 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/423 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1222 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/423 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1222 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/423 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1222 unsolved
At refinement iteration 3 (OVERLAPS) 691/1114 variables, 423/427 constraints. Problems are: Problem set: 0 solved, 1222 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1114 variables, 75/502 constraints. Problems are: Problem set: 0 solved, 1222 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1114/1114 variables, and 1724 constraints, problems are : Problem set: 0 solved, 1222 unsolved in 30807 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 423/423 constraints, ReadFeed: 75/75 constraints, PredecessorRefiner: 1222/1222 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 62588ms problems are : Problem set: 0 solved, 1222 unsolved
Search for dead transitions found 0 dead transitions in 62591ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 65102 ms. Remains : 423/423 places, 1224/1224 transitions.
[2026-05-25 10:16:50] [INFO ] Flow matrix only has 691 transitions (discarded 533 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {203=1, 297=1, 495=1, 686=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 2 ms.
This minimized invariant on transitions {252=1, 346=1, 544=1, 687=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 47 ms. (steps per millisecond=212 ) properties (out of 1) seen :[3]
Current structural bounds on expressions (after cover walk) : Max Seen:[300] Max Struct:[+inf]
[2026-05-25 10:16:50] [INFO ] Flow matrix only has 691 transitions (discarded 533 similar events)
[2026-05-25 10:16:50] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[300] Max Struct:[+inf]
RANDOM walk for 1000004 steps (2 resets) in 2713 ms. (368 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 644 ms. (1550 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[300] Max Struct:[+inf]
[2026-05-25 10:16:54] [INFO ] Flow matrix only has 691 transitions (discarded 533 similar events)
[2026-05-25 10:16:54] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:16:54] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:16:54] [INFO ] [Real]Absence check using state equation in 148 ms returned sat
[2026-05-25 10:16:54] [INFO ] State equation strengthened by 75 read => feed constraints.
[2026-05-25 10:16:54] [INFO ] [Real]Added 75 Read/Feed constraints in 30 ms returned sat
[2026-05-25 10:16:54] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:16:54] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:16:54] [INFO ] [Nat]Absence check using state equation in 137 ms returned sat
[2026-05-25 10:16:54] [INFO ] [Nat]Added 75 Read/Feed constraints in 38 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:16:55] [INFO ] Deduced a trap composed of 70 places in 233 ms of which 34 ms to minimize.
[2026-05-25 10:16:55] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 297 ms
[2026-05-25 10:16:55] [INFO ] Computed and/alt/rep : 339/1255/332 causal constraints (skipped 357 transitions) in 64 ms.
[2026-05-25 10:16:55] [INFO ] Added : 26 causal constraints over 6 iterations in 426 ms. Result :sat
Minimization took 248 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[300] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[300] Max Struct:[+inf]
Support contains 1 out of 423 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 423/423 places, 1224/1224 transitions.
Applied a total of 0 rules in 58 ms. Remains 423 /423 variables (removed 0) and now considering 1224/1224 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 59 ms. Remains : 423/423 places, 1224/1224 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 423/423 places, 1224/1224 transitions.
Applied a total of 0 rules in 47 ms. Remains 423 /423 variables (removed 0) and now considering 1224/1224 (removed 0) transitions.
[2026-05-25 10:16:57] [INFO ] Flow matrix only has 691 transitions (discarded 533 similar events)
[2026-05-25 10:16:57] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 10:16:58] [INFO ] Implicit Places using invariants in 301 ms returned []
[2026-05-25 10:16:58] [INFO ] Flow matrix only has 691 transitions (discarded 533 similar events)
[2026-05-25 10:16:58] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 10:16:58] [INFO ] State equation strengthened by 75 read => feed constraints.
[2026-05-25 10:16:59] [INFO ] Implicit Places using invariants and state equation in 1831 ms returned []
Implicit Place search using SMT with State Equation took 2134 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-25 10:16:59] [INFO ] Redundant transitions in 28 ms returned []
Running 1222 sub problems to find dead transitions.
[2026-05-25 10:16:59] [INFO ] Flow matrix only has 691 transitions (discarded 533 similar events)
[2026-05-25 10:16:59] [INFO ] Invariant cache hit.
[2026-05-25 10:16:59] [INFO ] State equation strengthened by 75 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/423 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1222 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:17:09] [INFO ] Deduced a trap composed of 131 places in 151 ms of which 7 ms to minimize.
At refinement iteration 1 (INCLUDED_ONLY) 0/423 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1222 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 423/1114 variables, and 4 constraints, problems are : Problem set: 0 solved, 1222 unsolved in 30024 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/423 constraints, ReadFeed: 0/75 constraints, PredecessorRefiner: 1222/1222 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1222 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/423 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1222 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/423 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1222 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/423 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1222 unsolved
At refinement iteration 3 (OVERLAPS) 691/1114 variables, 423/427 constraints. Problems are: Problem set: 0 solved, 1222 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1114 variables, 75/502 constraints. Problems are: Problem set: 0 solved, 1222 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1114/1114 variables, and 1724 constraints, problems are : Problem set: 0 solved, 1222 unsolved in 30807 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 423/423 constraints, ReadFeed: 75/75 constraints, PredecessorRefiner: 1222/1222 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 62639ms problems are : Problem set: 0 solved, 1222 unsolved
Search for dead transitions found 0 dead transitions in 62644ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 64863 ms. Remains : 423/423 places, 1224/1224 transitions.
[2026-05-25 10:18:02] [INFO ] Flow matrix only has 691 transitions (discarded 533 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {203=1, 297=1, 495=1, 686=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {252=1, 346=1, 544=1, 687=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 49 ms. (steps per millisecond=204 ) properties (out of 1) seen :[2]
Current structural bounds on expressions (after cover walk) : Max Seen:[300] Max Struct:[+inf]
RANDOM walk for 40002 steps (8 resets) in 259 ms. (153 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (8 resets) in 111 ms. (357 steps per ms) remains 1/1 properties
[2026-05-25 10:18:03] [INFO ] Flatten gal took : 210 ms
[2026-05-25 10:18:03] [INFO ] Flatten gal took : 140 ms
[2026-05-25 10:18:03] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality16372952538143878402.gal : 32 ms
[2026-05-25 10:18:03] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality5094018445914488767.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/ReachabilityCardinality16372952538143878402.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality5094018445914488767.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/ReachabilityCardinality5094018445914488767.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 1840
SDD proceeding with computation,1 properties remain. new max is 16
SDD size :1840 after 660552
Interrupted probabilistic random walk after 520048 steps, run timeout after 3001 ms. (steps per millisecond=173 ) properties seen :0 out of 1
Probabilistic random walk after 520048 steps, saw 318889 distinct states, run finished after 3001 ms. (steps per millisecond=173 ) properties seen :0
[2026-05-25 10:18:05] [INFO ] Flow matrix only has 691 transitions (discarded 533 similar events)
[2026-05-25 10:18:05] [INFO ] Invariant cache hit.
[2026-05-25 10:18:05] [INFO ] State equation strengthened by 75 read => feed constraints.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 2/3 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/3 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 6/9 variables, 2/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/9 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 6/15 variables, 3/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/15 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 8/23 variables, 3/9 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/23 variables, 0/9 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 351/374 variables, 6/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/374 variables, 1/16 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/374 variables, 0/16 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 10/384 variables, 2/18 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/384 variables, 4/22 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/384 variables, 0/22 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 601/985 variables, 337/359 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/985 variables, 74/433 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/985 variables, 0/433 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 18 (OVERLAPS) 62/1047 variables, 1/434 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/1047 variables, 0/434 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (OVERLAPS) 66/1113 variables, 66/500 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/1113 variables, 0/500 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (OVERLAPS) 1/1114 variables, 1/501 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (INCLUDED_ONLY) 0/1114 variables, 0/501 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (OVERLAPS) 0/1114 variables, 0/501 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 1114/1114 variables, and 501 constraints, problems are : Problem set: 0 solved, 1 unsolved in 315 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 423/423 constraints, ReadFeed: 75/75 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 2/3 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/3 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 6/9 variables, 2/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/9 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 6/15 variables, 3/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/15 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 8/23 variables, 3/9 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/23 variables, 0/9 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 351/374 variables, 6/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/374 variables, 1/16 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/374 variables, 1/17 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/374 variables, 0/17 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 10/384 variables, 2/19 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/384 variables, 4/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/384 variables, 0/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 601/985 variables, 337/360 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/985 variables, 74/434 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/985 variables, 0/434 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 62/1047 variables, 1/435 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/1047 variables, 0/435 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 66/1113 variables, 66/501 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/1113 variables, 0/501 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 1/1114 variables, 1/502 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (INCLUDED_ONLY) 0/1114 variables, 0/502 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 25 (OVERLAPS) 0/1114 variables, 0/502 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 1114/1114 variables, and 502 constraints, problems are : Problem set: 0 solved, 1 unsolved in 399 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 423/423 constraints, ReadFeed: 75/75 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 731ms problems are : Problem set: 0 solved, 1 unsolved
SDD proceeding with computation,1 properties remain. new max is 32
SDD size :660552 after 4.7239e+07
SDD proceeding with computation,1 properties remain. new max is 64
SDD size :4.7239e+07 after 1.05961e+08
SDD proceeding with computation,1 properties remain. new max is 128
SDD size :1.05961e+08 after 1.97923e+08
Parikh walk visited 0 properties in 2283 ms.
Support contains 1 out of 423 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 423/423 places, 1224/1224 transitions.
Applied a total of 0 rules in 46 ms. Remains 423 /423 variables (removed 0) and now considering 1224/1224 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 47 ms. Remains : 423/423 places, 1224/1224 transitions.
RANDOM walk for 40009 steps (8 resets) in 197 ms. (202 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (8 resets) in 55 ms. (714 steps per ms) remains 1/1 properties
SDD proceeding with computation,1 properties remain. new max is 256
SDD size :1.97923e+08 after 3.37628e+08
SDD proceeding with computation,1 properties remain. new max is 512
SDD size :3.37628e+08 after 4.32288e+08
SDD proceeding with computation,1 properties remain. new max is 1024
SDD size :4.32288e+08 after 4.76242e+08
SDD proceeding with computation,1 properties remain. new max is 2048
SDD size :4.76242e+08 after 5.10678e+08
SDD proceeding with computation,1 properties remain. new max is 4096
SDD size :5.10678e+08 after 6.10258e+08
Interrupted probabilistic random walk after 555860 steps, run timeout after 3001 ms. (steps per millisecond=185 ) properties seen :0 out of 1
Probabilistic random walk after 555860 steps, saw 340846 distinct states, run finished after 3001 ms. (steps per millisecond=185 ) properties seen :0
[2026-05-25 10:18:12] [INFO ] Flow matrix only has 691 transitions (discarded 533 similar events)
[2026-05-25 10:18:12] [INFO ] Invariant cache hit.
[2026-05-25 10:18:12] [INFO ] State equation strengthened by 75 read => feed constraints.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 2/3 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/3 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 6/9 variables, 2/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/9 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 6/15 variables, 3/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/15 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 8/23 variables, 3/9 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/23 variables, 0/9 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 351/374 variables, 6/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/374 variables, 1/16 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/374 variables, 0/16 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 10/384 variables, 2/18 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/384 variables, 4/22 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/384 variables, 0/22 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 601/985 variables, 337/359 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/985 variables, 74/433 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/985 variables, 0/433 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 18 (OVERLAPS) 62/1047 variables, 1/434 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/1047 variables, 0/434 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (OVERLAPS) 66/1113 variables, 66/500 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/1113 variables, 0/500 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (OVERLAPS) 1/1114 variables, 1/501 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (INCLUDED_ONLY) 0/1114 variables, 0/501 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (OVERLAPS) 0/1114 variables, 0/501 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 1114/1114 variables, and 501 constraints, problems are : Problem set: 0 solved, 1 unsolved in 335 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 423/423 constraints, ReadFeed: 75/75 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 2/3 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/3 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 6/9 variables, 2/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/9 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 6/15 variables, 3/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/15 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 8/23 variables, 3/9 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/23 variables, 0/9 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 351/374 variables, 6/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/374 variables, 1/16 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/374 variables, 1/17 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/374 variables, 0/17 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 10/384 variables, 2/19 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/384 variables, 4/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/384 variables, 0/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 601/985 variables, 337/360 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/985 variables, 74/434 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/985 variables, 0/434 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 62/1047 variables, 1/435 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/1047 variables, 0/435 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 66/1113 variables, 66/501 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/1113 variables, 0/501 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 1/1114 variables, 1/502 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (INCLUDED_ONLY) 0/1114 variables, 0/502 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 25 (OVERLAPS) 0/1114 variables, 0/502 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 1114/1114 variables, and 502 constraints, problems are : Problem set: 0 solved, 1 unsolved in 417 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 423/423 constraints, ReadFeed: 75/75 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 761ms problems are : Problem set: 0 solved, 1 unsolved
SDD proceeding with computation,1 properties remain. new max is 8192
SDD size :6.10258e+08 after 8.09419e+08
Parikh walk visited 0 properties in 2276 ms.
Support contains 1 out of 423 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 423/423 places, 1224/1224 transitions.
Applied a total of 0 rules in 63 ms. Remains 423 /423 variables (removed 0) and now considering 1224/1224 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 63 ms. Remains : 423/423 places, 1224/1224 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 423/423 places, 1224/1224 transitions.
Applied a total of 0 rules in 52 ms. Remains 423 /423 variables (removed 0) and now considering 1224/1224 (removed 0) transitions.
[2026-05-25 10:18:15] [INFO ] Flow matrix only has 691 transitions (discarded 533 similar events)
[2026-05-25 10:18:15] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 10:18:15] [INFO ] Implicit Places using invariants in 301 ms returned []
[2026-05-25 10:18:15] [INFO ] Flow matrix only has 691 transitions (discarded 533 similar events)
[2026-05-25 10:18:15] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 10:18:15] [INFO ] State equation strengthened by 75 read => feed constraints.
[2026-05-25 10:18:17] [INFO ] Implicit Places using invariants and state equation in 1836 ms returned []
Implicit Place search using SMT with State Equation took 2140 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-25 10:18:17] [INFO ] Redundant transitions in 22 ms returned []
Running 1222 sub problems to find dead transitions.
[2026-05-25 10:18:17] [INFO ] Flow matrix only has 691 transitions (discarded 533 similar events)
[2026-05-25 10:18:17] [INFO ] Invariant cache hit.
[2026-05-25 10:18:17] [INFO ] State equation strengthened by 75 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/423 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1222 unsolved
SDD proceeding with computation,1 properties remain. new max is 16384
SDD size :8.09419e+08 after 1.20774e+09
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:18:27] [INFO ] Deduced a trap composed of 131 places in 135 ms of which 7 ms to minimize.
At refinement iteration 1 (INCLUDED_ONLY) 0/423 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1222 unsolved
Error getting values : (error "ParserException while parsing response: (timeout
org.smtlib.IParser$ParserException: Unbalanced parentheses at end of input")
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 423/1114 variables, and 4 constraints, problems are : Problem set: 0 solved, 1222 unsolved in 30022 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/423 constraints, ReadFeed: 0/75 constraints, PredecessorRefiner: 1222/1222 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1222 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/423 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1222 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/423 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1222 unsolved
Detected timeout of ITS tools.
[2026-05-25 10:18:53] [INFO ] Flatten gal took : 35 ms
[2026-05-25 10:18:53] [INFO ] Applying decomposition
[2026-05-25 10:18:53] [INFO ] Flatten gal took : 34 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/graph6496141584204943280.txt' '-o' '/tmp/graph6496141584204943280.bin' '-w' '/tmp/graph6496141584204943280.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/louvain-linux64' '/tmp/graph6496141584204943280.bin' '-l' '-1' '-v' '-w' '/tmp/graph6496141584204943280.weights' '-q' '0' '-e' '0.001'
[2026-05-25 10:18:53] [INFO ] Decomposing Gal with order
[2026-05-25 10:18:53] [INFO ] Rewriting arrays to variables to allow decomposition.
[2026-05-25 10:18:53] [INFO ] Removed a total of 2101 redundant transitions.
[2026-05-25 10:18:53] [INFO ] Flatten gal took : 103 ms
[2026-05-25 10:18:53] [INFO ] Fuse similar labels procedure discarded/fused a total of 866 labels/synchronizations in 57 ms.
[2026-05-25 10:18:53] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality16272016407519193565.gal : 12 ms
[2026-05-25 10:18:53] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality14700208328487195736.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/ReachabilityCardinality16272016407519193565.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality14700208328487195736.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/ReachabilityCardinality14700208328487195736.prop.
At refinement iteration 2 (INCLUDED_ONLY) 0/423 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1222 unsolved
At refinement iteration 3 (OVERLAPS) 691/1114 variables, 423/427 constraints. Problems are: Problem set: 0 solved, 1222 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1114 variables, 75/502 constraints. Problems are: Problem set: 0 solved, 1222 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1114/1114 variables, and 1724 constraints, problems are : Problem set: 0 solved, 1222 unsolved in 30831 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 423/423 constraints, ReadFeed: 75/75 constraints, PredecessorRefiner: 1222/1222 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 62736ms problems are : Problem set: 0 solved, 1222 unsolved
Search for dead transitions found 0 dead transitions in 62738ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 64967 ms. Remains : 423/423 places, 1224/1224 transitions.
Attempting over-approximation, by ignoring read arcs.
Ensure Unique test removed 533 transitions
Reduce isomorphic transitions removed 533 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 10 transitions
Trivial Post-agglo rules discarded 10 transitions
Performed 10 trivial Post agglomeration. Transition count delta: 10
Iterating post reduction 0 with 543 rules applied. Total rules applied 543 place count 423 transition count 681
Reduce places removed 10 places and 0 transitions.
Iterating post reduction 1 with 10 rules applied. Total rules applied 553 place count 413 transition count 681
Performed 73 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 73 Pre rules applied. Total rules applied 553 place count 413 transition count 608
Deduced a syphon composed of 73 places in 0 ms
Reduce places removed 73 places and 0 transitions.
Iterating global reduction 2 with 146 rules applied. Total rules applied 699 place count 340 transition count 608
Performed 128 Post agglomeration using F-continuation condition.Transition count delta: 128
Deduced a syphon composed of 128 places in 0 ms
Reduce places removed 128 places and 0 transitions.
Iterating global reduction 2 with 256 rules applied. Total rules applied 955 place count 212 transition count 480
Discarding 64 places :
Symmetric choice reduction at 2 with 64 rule applications. Total rules 1019 place count 148 transition count 352
Iterating global reduction 2 with 64 rules applied. Total rules applied 1083 place count 148 transition count 352
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 2 with 1 rules applied. Total rules applied 1084 place count 148 transition count 351
Discarding 63 places :
Symmetric choice reduction at 3 with 63 rule applications. Total rules 1147 place count 85 transition count 225
Iterating global reduction 3 with 63 rules applied. Total rules applied 1210 place count 85 transition count 225
Discarding 63 places :
Symmetric choice reduction at 3 with 63 rule applications. Total rules 1273 place count 22 transition count 99
Iterating global reduction 3 with 63 rules applied. Total rules applied 1336 place count 22 transition count 99
Ensure Unique test removed 63 transitions
Reduce isomorphic transitions removed 63 transitions.
Iterating post reduction 3 with 63 rules applied. Total rules applied 1399 place count 22 transition count 36
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 4 with 1 Pre rules applied. Total rules applied 1399 place count 22 transition count 35
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 4 with 2 rules applied. Total rules applied 1401 place count 21 transition count 35
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 4 with 2 rules applied. Total rules applied 1403 place count 20 transition count 34
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 0
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 4 with 2 rules applied. Total rules applied 1405 place count 19 transition count 34
Drop transitions (Redundant composition of simpler transitions.) removed 3 transitions
Redundant transition composition rules discarded 3 transitions
Iterating global reduction 4 with 3 rules applied. Total rules applied 1408 place count 19 transition count 31
Applied a total of 1408 rules in 73 ms. Remains 19 /423 variables (removed 404) and now considering 31/1224 (removed 1193) transitions.
Running SMT prover for 1 properties.
// Phase 1: matrix 31 rows 19 cols
[2026-05-25 10:19:20] [INFO ] Computed 3 invariants in 0 ms
Starting Z3 with timeout 450.0 s and query timeout 45000.0 ms
[2026-05-25 10:19:20] [INFO ] [Real]Absence check using 3 positive place invariants in 1 ms returned sat
[2026-05-25 10:19:20] [INFO ] After 8ms SMT Verify possible using state equation in real domain returned unsat :0 sat :1
[2026-05-25 10:19:20] [INFO ] State equation strengthened by 2 read => feed constraints.
[2026-05-25 10:19:20] [INFO ] After 2ms SMT Verify possible using 2 Read/Feed constraints in real domain returned unsat :0 sat :0 real:1
[2026-05-25 10:19:20] [INFO ] After 35ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
Starting Z3 with timeout 450.0 s and query timeout 45000.0 ms
[2026-05-25 10:19:20] [INFO ] [Nat]Absence check using 3 positive place invariants in 1 ms returned sat
[2026-05-25 10:19:20] [INFO ] After 7ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
[2026-05-25 10:19:20] [INFO ] After 2ms SMT Verify possible using 2 Read/Feed constraints in natural domain returned unsat :0 sat :1
TRAPS : Iteration 0
[2026-05-25 10:19:20] [INFO ] After 5ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
[2026-05-25 10:19:20] [INFO ] After 36ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
[2026-05-25 10:19:20] [INFO ] Flatten gal took : 2 ms
[2026-05-25 10:19:20] [INFO ] Flatten gal took : 2 ms
[2026-05-25 10:19:20] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality15633963466374793317.gal : 1 ms
[2026-05-25 10:19:20] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality1362568873388087125.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/ReachabilityCardinality15633963466374793317.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality1362568873388087125.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/ReachabilityCardinality1362568873388087125.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 30
SDD proceeding with computation,1 properties remain. new max is 16
SDD size :30 after 105
SDD proceeding with computation,1 properties remain. new max is 32
SDD size :105 after 705
SDD proceeding with computation,1 properties remain. new max is 64
SDD size :705 after 2025
SDD proceeding with computation,1 properties remain. new max is 128
SDD size :2025 after 4625
SDD proceeding with computation,1 properties remain. new max is 256
SDD size :4625 after 9785
SDD proceeding with computation,1 properties remain. new max is 512
SDD size :9785 after 20065
SDD proceeding with computation,1 properties remain. new max is 1024
SDD size :20065 after 40585
SDD proceeding with computation,1 properties remain. new max is 2048
SDD size :40585 after 81585
SDD proceeding with computation,1 properties remain. new max is 4096
SDD size :81585 after 163545
Detected timeout of ITS tools.
[2026-05-25 10:19:35] [INFO ] Flatten gal took : 1 ms
[2026-05-25 10:19:35] [INFO ] Applying decomposition
[2026-05-25 10:19:35] [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/graph12074749464092694814.txt' '-o' '/tmp/graph12074749464092694814.bin' '-w' '/tmp/graph12074749464092694814.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/louvain-linux64' '/tmp/graph12074749464092694814.bin' '-l' '-1' '-v' '-w' '/tmp/graph12074749464092694814.weights' '-q' '0' '-e' '0.001'
[2026-05-25 10:19:35] [INFO ] Decomposing Gal with order
[2026-05-25 10:19:35] [INFO ] Rewriting arrays to variables to allow decomposition.
[2026-05-25 10:19:35] [INFO ] Removed a total of 30 redundant transitions.
[2026-05-25 10:19:35] [INFO ] Flatten gal took : 5 ms
[2026-05-25 10:19:35] [INFO ] Fuse similar labels procedure discarded/fused a total of 2 labels/synchronizations in 1 ms.
[2026-05-25 10:19:35] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality17553733415643921849.gal : 1 ms
[2026-05-25 10:19:35] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality7415371555102567531.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/ReachabilityCardinality17553733415643921849.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality7415371555102567531.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/ReachabilityCardinality7415371555102567531.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 30
Detected timeout of ITS tools.
Detected timeout of ITS tools.
Over-approximation ignoring read arcs solved 0 properties in 30252 ms.
Current structural bounds on expressions (After reachability solving 0 queries.) : Max Seen:[300] Max Struct:[+inf]
Ending property specific reduction for FunctionPointer-PT-c004-UpperBounds-11 in 327977 ms.
Starting property specific reduction for FunctionPointer-PT-c004-UpperBounds-14
Current structural bounds on expressions (Initially) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (Adding known information on max bounds.) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (Before main loop) : Max Seen:[0] Max Struct:[+inf]
[2026-05-25 10:19:50] [INFO ] Flow matrix only has 721 transitions (discarded 543 similar events)
// Phase 1: matrix 721 rows 441 cols
[2026-05-25 10:19:50] [INFO ] Computed 3 invariants in 14 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[+inf]
RANDOM walk for 10000 steps (2 resets) in 30 ms. (322 steps per ms)
BEST_FIRST walk for 10001 steps (2 resets) in 9 ms. (1000 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[9] Max Struct:[+inf]
[2026-05-25 10:19:50] [INFO ] Flow matrix only has 721 transitions (discarded 543 similar events)
[2026-05-25 10:19:50] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 10:19:50] [INFO ] [Real]Absence check using 3 positive place invariants in 7 ms returned sat
[2026-05-25 10:19:50] [INFO ] [Real]Absence check using state equation in 126 ms returned sat
[2026-05-25 10:19:50] [INFO ] State equation strengthened by 83 read => feed constraints.
[2026-05-25 10:19:50] [INFO ] [Real]Added 83 Read/Feed constraints in 29 ms returned sat
[2026-05-25 10:19:50] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 10:19:50] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:19:50] [INFO ] [Nat]Absence check using state equation in 128 ms returned sat
[2026-05-25 10:19:50] [INFO ] [Nat]Added 83 Read/Feed constraints in 23 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:19:51] [INFO ] Deduced a trap composed of 73 places in 237 ms of which 42 ms to minimize.
[2026-05-25 10:19:51] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 298 ms
[2026-05-25 10:19:51] [INFO ] Computed and/alt/rep : 348/2064/341 causal constraints (skipped 378 transitions) in 70 ms.
[2026-05-25 10:19:51] [INFO ] Added : 11 causal constraints over 3 iterations in 273 ms. Result :sat
Minimization took 261 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[9] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[9] Max Struct:[+inf]
Support contains 1 out of 441 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 441/441 places, 1264/1264 transitions.
Discarding 3 places :
Symmetric choice reduction at 0 with 3 rule applications. Total rules 3 place count 438 transition count 1258
Iterating global reduction 0 with 3 rules applied. Total rules applied 6 place count 438 transition count 1258
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 0 with 2 rules applied. Total rules applied 8 place count 438 transition count 1256
Discarding 2 places :
Symmetric choice reduction at 1 with 2 rule applications. Total rules 10 place count 436 transition count 1252
Iterating global reduction 1 with 2 rules applied. Total rules applied 12 place count 436 transition count 1252
Discarding 2 places :
Symmetric choice reduction at 1 with 2 rule applications. Total rules 14 place count 434 transition count 1246
Iterating global reduction 1 with 2 rules applied. Total rules applied 16 place count 434 transition count 1246
Discarding 2 places :
Symmetric choice reduction at 1 with 2 rule applications. Total rules 18 place count 432 transition count 1240
Iterating global reduction 1 with 2 rules applied. Total rules applied 20 place count 432 transition count 1240
Discarding 2 places :
Symmetric choice reduction at 1 with 2 rule applications. Total rules 22 place count 430 transition count 1236
Iterating global reduction 1 with 2 rules applied. Total rules applied 24 place count 430 transition count 1236
Discarding 2 places :
Symmetric choice reduction at 1 with 2 rule applications. Total rules 26 place count 428 transition count 1232
Iterating global reduction 1 with 2 rules applied. Total rules applied 28 place count 428 transition count 1232
Discarding 2 places :
Symmetric choice reduction at 1 with 2 rule applications. Total rules 30 place count 426 transition count 1228
Iterating global reduction 1 with 2 rules applied. Total rules applied 32 place count 426 transition count 1228
Discarding 2 places :
Symmetric choice reduction at 1 with 2 rule applications. Total rules 34 place count 424 transition count 1224
Iterating global reduction 1 with 2 rules applied. Total rules applied 36 place count 424 transition count 1224
Discarding 2 places :
Symmetric choice reduction at 1 with 2 rule applications. Total rules 38 place count 422 transition count 1220
Iterating global reduction 1 with 2 rules applied. Total rules applied 40 place count 422 transition count 1220
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 41 place count 421 transition count 1218
Iterating global reduction 1 with 1 rules applied. Total rules applied 42 place count 421 transition count 1218
Applied a total of 42 rules in 142 ms. Remains 421 /441 variables (removed 20) and now considering 1218/1264 (removed 46) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 142 ms. Remains : 421/441 places, 1218/1264 transitions.
[2026-05-25 10:19:51] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {233=1, 324=1, 522=1, 683=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {252=1, 343=1, 541=1, 684=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 47 ms. (steps per millisecond=212 ) properties (out of 1) seen :[0]
Current structural bounds on expressions (after cover walk) : Max Seen:[9] Max Struct:[+inf]
[2026-05-25 10:19:52] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
// Phase 1: matrix 688 rows 421 cols
[2026-05-25 10:19:52] [INFO ] Computed 3 invariants in 11 ms
Current structural bounds on expressions (after invariants) : Max Seen:[9] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 2634 ms. (379 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 629 ms. (1587 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[480] Max Struct:[+inf]
[2026-05-25 10:19:55] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
[2026-05-25 10:19:55] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:19:55] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:19:55] [INFO ] [Real]Absence check using state equation in 127 ms returned sat
[2026-05-25 10:19:55] [INFO ] State equation strengthened by 75 read => feed constraints.
[2026-05-25 10:19:55] [INFO ] [Real]Added 75 Read/Feed constraints in 35 ms returned sat
[2026-05-25 10:19:55] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:19:55] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:19:55] [INFO ] [Nat]Absence check using state equation in 125 ms returned sat
[2026-05-25 10:19:55] [INFO ] [Nat]Added 75 Read/Feed constraints in 27 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:19:56] [INFO ] Deduced a trap composed of 70 places in 205 ms of which 25 ms to minimize.
[2026-05-25 10:19:56] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 281 ms
[2026-05-25 10:19:56] [INFO ] Computed and/alt/rep : 332/1248/332 causal constraints (skipped 354 transitions) in 66 ms.
[2026-05-25 10:19:56] [INFO ] Added : 10 causal constraints over 3 iterations in 238 ms. Result :sat
Minimization took 239 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[480] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[480] Max Struct:[+inf]
Support contains 1 out of 421 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 421/421 places, 1218/1218 transitions.
Applied a total of 0 rules in 46 ms. Remains 421 /421 variables (removed 0) and now considering 1218/1218 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 46 ms. Remains : 421/421 places, 1218/1218 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 421/421 places, 1218/1218 transitions.
Applied a total of 0 rules in 46 ms. Remains 421 /421 variables (removed 0) and now considering 1218/1218 (removed 0) transitions.
[2026-05-25 10:19:56] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
[2026-05-25 10:19:56] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 10:19:57] [INFO ] Implicit Places using invariants in 294 ms returned []
[2026-05-25 10:19:57] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
[2026-05-25 10:19:57] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 10:19:57] [INFO ] State equation strengthened by 75 read => feed constraints.
[2026-05-25 10:19:58] [INFO ] Implicit Places using invariants and state equation in 1640 ms returned []
Implicit Place search using SMT with State Equation took 1936 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-25 10:19:58] [INFO ] Redundant transitions in 26 ms returned []
Running 1216 sub problems to find dead transitions.
[2026-05-25 10:19:58] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
[2026-05-25 10:19:58] [INFO ] Invariant cache hit.
[2026-05-25 10:19:58] [INFO ] State equation strengthened by 75 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/421 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:20:08] [INFO ] Deduced a trap composed of 131 places in 149 ms of which 7 ms to minimize.
At refinement iteration 1 (INCLUDED_ONLY) 0/421 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 421/1109 variables, and 4 constraints, problems are : Problem set: 0 solved, 1216 unsolved in 30018 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/421 constraints, ReadFeed: 0/75 constraints, PredecessorRefiner: 1216/1216 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1216 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/421 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/421 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/421 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
At refinement iteration 3 (OVERLAPS) 688/1109 variables, 421/425 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1109 variables, 75/500 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1109/1109 variables, and 1716 constraints, problems are : Problem set: 0 solved, 1216 unsolved in 30826 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 421/421 constraints, ReadFeed: 75/75 constraints, PredecessorRefiner: 1216/1216 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 62565ms problems are : Problem set: 0 solved, 1216 unsolved
Search for dead transitions found 0 dead transitions in 62567ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 64583 ms. Remains : 421/421 places, 1218/1218 transitions.
[2026-05-25 10:21:01] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {233=1, 324=1, 522=1, 683=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {252=1, 343=1, 541=1, 684=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 50 ms. (steps per millisecond=200 ) properties (out of 1) seen :[0]
Current structural bounds on expressions (after cover walk) : Max Seen:[480] Max Struct:[+inf]
[2026-05-25 10:21:01] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
[2026-05-25 10:21:01] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[480] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 2688 ms. (371 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 633 ms. (1577 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[480] Max Struct:[+inf]
[2026-05-25 10:21:04] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
[2026-05-25 10:21:05] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:21:05] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:21:05] [INFO ] [Real]Absence check using state equation in 132 ms returned sat
[2026-05-25 10:21:05] [INFO ] State equation strengthened by 75 read => feed constraints.
[2026-05-25 10:21:05] [INFO ] [Real]Added 75 Read/Feed constraints in 37 ms returned sat
[2026-05-25 10:21:05] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:21:05] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:21:05] [INFO ] [Nat]Absence check using state equation in 130 ms returned sat
[2026-05-25 10:21:05] [INFO ] [Nat]Added 75 Read/Feed constraints in 28 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:21:05] [INFO ] Deduced a trap composed of 70 places in 222 ms of which 25 ms to minimize.
[2026-05-25 10:21:05] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 274 ms
[2026-05-25 10:21:05] [INFO ] Computed and/alt/rep : 332/1248/332 causal constraints (skipped 354 transitions) in 65 ms.
[2026-05-25 10:21:06] [INFO ] Added : 10 causal constraints over 3 iterations in 237 ms. Result :sat
Minimization took 249 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[480] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[480] Max Struct:[+inf]
Support contains 1 out of 421 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 421/421 places, 1218/1218 transitions.
Applied a total of 0 rules in 48 ms. Remains 421 /421 variables (removed 0) and now considering 1218/1218 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 48 ms. Remains : 421/421 places, 1218/1218 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 421/421 places, 1218/1218 transitions.
Applied a total of 0 rules in 47 ms. Remains 421 /421 variables (removed 0) and now considering 1218/1218 (removed 0) transitions.
[2026-05-25 10:21:06] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
[2026-05-25 10:21:06] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 10:21:06] [INFO ] Implicit Places using invariants in 301 ms returned []
[2026-05-25 10:21:06] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
[2026-05-25 10:21:06] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 10:21:06] [INFO ] State equation strengthened by 75 read => feed constraints.
[2026-05-25 10:21:08] [INFO ] Implicit Places using invariants and state equation in 1649 ms returned []
Implicit Place search using SMT with State Equation took 1951 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-25 10:21:08] [INFO ] Redundant transitions in 25 ms returned []
Running 1216 sub problems to find dead transitions.
[2026-05-25 10:21:08] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
[2026-05-25 10:21:08] [INFO ] Invariant cache hit.
[2026-05-25 10:21:08] [INFO ] State equation strengthened by 75 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/421 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:21:17] [INFO ] Deduced a trap composed of 131 places in 144 ms of which 6 ms to minimize.
At refinement iteration 1 (INCLUDED_ONLY) 0/421 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 421/1109 variables, and 4 constraints, problems are : Problem set: 0 solved, 1216 unsolved in 30022 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/421 constraints, ReadFeed: 0/75 constraints, PredecessorRefiner: 1216/1216 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1216 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/421 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/421 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/421 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
At refinement iteration 3 (OVERLAPS) 688/1109 variables, 421/425 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1109 variables, 75/500 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1109/1109 variables, and 1716 constraints, problems are : Problem set: 0 solved, 1216 unsolved in 30816 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 421/421 constraints, ReadFeed: 75/75 constraints, PredecessorRefiner: 1216/1216 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 62507ms problems are : Problem set: 0 solved, 1216 unsolved
Search for dead transitions found 0 dead transitions in 62509ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 64540 ms. Remains : 421/421 places, 1218/1218 transitions.
[2026-05-25 10:22:10] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {233=1, 324=1, 522=1, 683=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {252=1, 343=1, 541=1, 684=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 41 ms. (steps per millisecond=243 ) properties (out of 1) seen :[0]
Current structural bounds on expressions (after cover walk) : Max Seen:[480] Max Struct:[+inf]
[2026-05-25 10:22:11] [INFO ] Flatten gal took : 33 ms
RANDOM walk for 40000 steps (8 resets) in 199 ms. (200 steps per ms) remains 1/1 properties
[2026-05-25 10:22:11] [INFO ] Flatten gal took : 30 ms
[2026-05-25 10:22:11] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality14703336236230103.gal : 5 ms
[2026-05-25 10:22:11] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality8002660459967530033.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/ReachabilityCardinality14703336236230103.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality8002660459967530033.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 ...326
BEST_FIRST walk for 40004 steps (8 resets) in 76 ms. (519 steps per ms) remains 1/1 properties
Loading property file /tmp/ReachabilityCardinality8002660459967530033.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 1862
SDD proceeding with computation,1 properties remain. new max is 16
SDD size :1862 after 695653
Interrupted probabilistic random walk after 561487 steps, run timeout after 3001 ms. (steps per millisecond=187 ) properties seen :0 out of 1
Probabilistic random walk after 561487 steps, saw 344296 distinct states, run finished after 3001 ms. (steps per millisecond=187 ) properties seen :0
[2026-05-25 10:22:14] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
[2026-05-25 10:22:14] [INFO ] Invariant cache hit.
[2026-05-25 10:22:14] [INFO ] State equation strengthened by 75 read => feed constraints.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 2/3 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/3 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 6/9 variables, 2/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/9 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 10/19 variables, 4/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/19 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 352/371 variables, 8/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/371 variables, 1/16 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/371 variables, 0/16 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 7/378 variables, 2/18 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/378 variables, 3/21 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/378 variables, 0/21 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 604/982 variables, 337/358 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/982 variables, 74/432 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 15 (INCLUDED_ONLY) 0/982 variables, 0/432 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 62/1044 variables, 1/433 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/1044 variables, 0/433 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 65/1109 variables, 66/499 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/1109 variables, 0/499 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (OVERLAPS) 0/1109 variables, 0/499 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 1109/1109 variables, and 499 constraints, problems are : Problem set: 0 solved, 1 unsolved in 292 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 421/421 constraints, ReadFeed: 75/75 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 2/3 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/3 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 6/9 variables, 2/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/9 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 10/19 variables, 4/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/19 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 352/371 variables, 8/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/371 variables, 1/16 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/371 variables, 1/17 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/371 variables, 0/17 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 7/378 variables, 2/19 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/378 variables, 3/22 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/378 variables, 0/22 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 604/982 variables, 337/359 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/982 variables, 74/433 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/982 variables, 0/433 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 62/1044 variables, 1/434 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/1044 variables, 0/434 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 65/1109 variables, 66/500 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/1109 variables, 0/500 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:22:14] [INFO ] Deduced a trap along path composed of 3 places in 25 ms of which 1 ms to minimize.
At refinement iteration 21 (OVERLAPS) 0/1109 variables, 1/501 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/1109 variables, 0/501 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 0/1109 variables, 0/501 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 1109/1109 variables, and 501 constraints, problems are : Problem set: 0 solved, 1 unsolved in 456 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 421/421 constraints, ReadFeed: 75/75 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 1/1 constraints]
After SMT, in 755ms problems are : Problem set: 0 solved, 1 unsolved
SDD proceeding with computation,1 properties remain. new max is 32
SDD size :695653 after 6.64141e+07
SDD proceeding with computation,1 properties remain. new max is 64
SDD size :6.64141e+07 after 2.25041e+08
SDD proceeding with computation,1 properties remain. new max is 128
SDD size :2.25041e+08 after 2.6536e+08
SDD proceeding with computation,1 properties remain. new max is 256
SDD size :2.6536e+08 after 3.64167e+08
SDD proceeding with computation,1 properties remain. new max is 512
SDD size :3.64167e+08 after 4.49971e+08
SDD proceeding with computation,1 properties remain. new max is 1024
SDD size :4.49971e+08 after 5.82012e+08
SDD proceeding with computation,1 properties remain. new max is 2048
SDD size :5.82012e+08 after 1.37665e+09
Parikh walk visited 0 properties in 3123 ms.
Support contains 1 out of 421 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 421/421 places, 1218/1218 transitions.
Applied a total of 0 rules in 44 ms. Remains 421 /421 variables (removed 0) and now considering 1218/1218 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 45 ms. Remains : 421/421 places, 1218/1218 transitions.
RANDOM walk for 40004 steps (8 resets) in 230 ms. (173 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (8 resets) in 48 ms. (816 steps per ms) remains 1/1 properties
SDD proceeding with computation,1 properties remain. new max is 4096
SDD size :1.37665e+09 after 1.44858e+09
SDD proceeding with computation,1 properties remain. new max is 8192
SDD size :1.44858e+09 after 1.63449e+09
SDD proceeding with computation,1 properties remain. new max is 16384
SDD size :1.63449e+09 after 2.05089e+09
Interrupted probabilistic random walk after 550353 steps, run timeout after 3001 ms. (steps per millisecond=183 ) properties seen :0 out of 1
Probabilistic random walk after 550353 steps, saw 337468 distinct states, run finished after 3001 ms. (steps per millisecond=183 ) properties seen :0
[2026-05-25 10:22:21] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
[2026-05-25 10:22:21] [INFO ] Invariant cache hit.
[2026-05-25 10:22:21] [INFO ] State equation strengthened by 75 read => feed constraints.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 2/3 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/3 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 6/9 variables, 2/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/9 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 10/19 variables, 4/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/19 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 352/371 variables, 8/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/371 variables, 1/16 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/371 variables, 0/16 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 7/378 variables, 2/18 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/378 variables, 3/21 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/378 variables, 0/21 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 604/982 variables, 337/358 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/982 variables, 74/432 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 15 (INCLUDED_ONLY) 0/982 variables, 0/432 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 62/1044 variables, 1/433 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/1044 variables, 0/433 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 65/1109 variables, 66/499 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/1109 variables, 0/499 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (OVERLAPS) 0/1109 variables, 0/499 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 1109/1109 variables, and 499 constraints, problems are : Problem set: 0 solved, 1 unsolved in 287 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 421/421 constraints, ReadFeed: 75/75 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 2/3 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/3 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 6/9 variables, 2/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/9 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 10/19 variables, 4/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/19 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 352/371 variables, 8/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/371 variables, 1/16 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/371 variables, 1/17 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/371 variables, 0/17 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 7/378 variables, 2/19 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/378 variables, 3/22 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/378 variables, 0/22 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 604/982 variables, 337/359 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/982 variables, 74/433 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/982 variables, 0/433 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 62/1044 variables, 1/434 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/1044 variables, 0/434 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 65/1109 variables, 66/500 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/1109 variables, 0/500 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:22:21] [INFO ] Deduced a trap along path composed of 3 places in 23 ms of which 1 ms to minimize.
At refinement iteration 21 (OVERLAPS) 0/1109 variables, 1/501 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/1109 variables, 0/501 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 0/1109 variables, 0/501 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 1109/1109 variables, and 501 constraints, problems are : Problem set: 0 solved, 1 unsolved in 461 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 421/421 constraints, ReadFeed: 75/75 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 1/1 constraints]
After SMT, in 761ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 3327 ms.
Support contains 1 out of 421 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 421/421 places, 1218/1218 transitions.
Applied a total of 0 rules in 50 ms. Remains 421 /421 variables (removed 0) and now considering 1218/1218 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 50 ms. Remains : 421/421 places, 1218/1218 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 421/421 places, 1218/1218 transitions.
Applied a total of 0 rules in 44 ms. Remains 421 /421 variables (removed 0) and now considering 1218/1218 (removed 0) transitions.
[2026-05-25 10:22:25] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
[2026-05-25 10:22:25] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
SDD proceeding with computation,1 properties remain. new max is 32768
SDD size :2.05089e+09 after 2.88933e+09
[2026-05-25 10:22:25] [INFO ] Implicit Places using invariants in 297 ms returned []
[2026-05-25 10:22:25] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
[2026-05-25 10:22:25] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 10:22:25] [INFO ] State equation strengthened by 75 read => feed constraints.
[2026-05-25 10:22:27] [INFO ] Implicit Places using invariants and state equation in 1601 ms returned []
Implicit Place search using SMT with State Equation took 1899 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-25 10:22:27] [INFO ] Redundant transitions in 23 ms returned []
Running 1216 sub problems to find dead transitions.
[2026-05-25 10:22:27] [INFO ] Flow matrix only has 688 transitions (discarded 530 similar events)
[2026-05-25 10:22:27] [INFO ] Invariant cache hit.
[2026-05-25 10:22:27] [INFO ] State equation strengthened by 75 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
SDD proceeding with computation,1 properties remain. new max is 65536
SDD size :2.88933e+09 after 4.55103e+09
At refinement iteration 0 (INCLUDED_ONLY) 0/421 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:22:37] [INFO ] Deduced a trap composed of 131 places in 137 ms of which 7 ms to minimize.
At refinement iteration 1 (INCLUDED_ONLY) 0/421 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
SDD proceeding with computation,1 properties remain. new max is 131072
SDD size :4.55103e+09 after 7.90895e+09
Error getting values : (error "ParserException while parsing response: ((s0 0.0)
(s1 0.0)
(s2 1.0)
(s3 0.0)
(s4 0.0)
(s5 0.0)
(s6 0.0)
(s7 0.0)
(s8 0.0)
(s9 0.0)
(s10 0.0)
(s11 0.0)
(s12 0.0)
(s13 0.0)
(s14 0.0)
(s15 0.0)
(s16 0.0)
(s17 0.0)
(s18 0.0)
(s19 0.0)
(s20 0.0)
(s21 0.0)
(s22 0.0)
(s23 0.0)
(s24 0.0)
(s25 0.0)
(s26 0.0)
(s27 0.0)
(s28 0.0)
(s29 0.0)
(s30 0.0)
(s31 0.0)
(s32 0.0)
(s33 0.0)
(s34 0.0)
(s35 0.0)
(s36 0.0)
(s37 0.0)
(s38 0.0)
(s39 0.0)
(s40 0.0)
(s41 0.0)
(s42 0.0)
(s43 0.0)
(s44 0.0)
(s45 0.0)
(s46 0.0)
(s47 0.0)
(s48 0.0)
(s49 0.0)
(s50 0.0)
(s51 0.0)
(s52 1.0)
(s53 0.0)
(s54 0.0)
(s55 0.0)
(s56 0.0)
(s57 0.0)
(s58 0.0)
(s59 0.0)
(s60 0.0)
(s61 0.0)
(s62 0.0)
(s63 0.0)
(s64 0.0)
(s65 0.0)
(s66 0.0)
(s67 0.0)
(s68 0.0)
(s69 0.0)
(s70 0.0)
(s71 0.0)
(s72 0.0)
(s73 0.0)
(s74 0.0)
(s75 0.0)
(s76 0.0)
(s77 0.0)
(s78 0.0)
(s79 0.0)
(s80 0.0)
(s81 0.0)
(s82 0.0)
(s83 0.0)
(s84 0.0)
(s85 0.0)
(s86 0.0)
(s87 0.0)
(s88 0.0)
(s89 0.0)
(s90 0.0)
(s91 0.0)
(s92 0.0)
(s93 0.0)
(s94 0.0)
(s95 0.0)
(s96 0.0)
(s97 0.0)
(s98 0.0)
(s99 0.0)
(s100 0.0)
(s101 0.0)
(s102 0.0)
(s103 0.0)
(s104 0.0)
(s105 0.0)
(s106 0.0)
(s107 0.0)
(s108 0.0)
(s109 0.0)
(s110 0.0)
(s111 0.0)
(s112 0.0)
(s113 0.0)
(s114 0.0)
(s115 0.0)
(s116 0.0)
(s117 0.0)
(s118 0.0)
(s119 0.0)
(s120 0.0)
(s121 0.0)
(s122 0.0)
(s123 0.0)
(s124 0.0)
(s125 0.0)
(s126 0.0)
(s127 0.0)
(s128 0.0)
(s129 0.0)
(s130 0.0)
(s131 0.0)
(s132 0.0)
(s133 0.0)
(s134 0.0)
(s135 0.0)
(s136 0.0)
(s137 0.0)
(s138 0.0)
(s139 0.0)
(s140 0.0)
(s141 0.0)
(s142 0.0)
(s143 0.0)
(s144 0.0)
(s145 0.0)
(s146 0.0)
(s147 0.0)
(s148 0.0)
(s149 0.0)
(s150 0.0)
(s151 0.0)
(s152 0.0)
(s153 0.0)
(s154 0.0)
(s155 0.0)
(s156 0.0)
(s157 0.0)
(s158 0.0)
(s159 0.0)
(s160 0.0)
(s161 0.0)
(s162 0.0)
(s163 0.0)
(s164 0.0)
(s165 0.0)
(s166 0.0)
(s167 0.0)
(s168 0.0)
(s169 0.0)
(s170 0.0)
(s171 0.0)
(s172 0.0)
(s173 0.0)
(s174 0.0)
(s175 0.0)
(s176 0.0)
(s177 0.0)
(s178 0.0)
(s179 0.0)
(s180 0.0)
(s181 0.0)
(s182 0.0)
(s183 1.0)
(s184 1.0)
(s185 1.0)
(s186 0.0)
(s187 0.0)
(s188 0.0)
(s189 0.0)
(s190 0.0)
(s191 0.0)
(s192 0.0)
(s193 0.0)
(s194 0.0)
(s195 0.0)
(s196 0.0)
(s197 0.0)
(s198 0.0)
(s199 0.0)
(s200 0.0)
(s201 0.0)
(s202 0.0)
(s203 0.0)
(s204 0.0)
(s205 0.0)
(s206 0.0)
(s207 0.0)
(s208 0.0)
(s209 0.0)
(s210 0.0)
(s211 0.0)
(s212 0.0)
(s213 0.0)
(s214 0.0)
(s215 0.0)
(s216 0.0)
(s217 0.0)
(s218 0.0)
(s219 0.0)
(s220 0.0)
(s221 0.0)
(s222 0.0)
(s223 0.0)
(s224 0.0)
(s225 0.0)
(s226 0.0)
(s227 0.0)
(s228 0.0)
(s229 0.0)
(s230 0.0)
(s231 0.0)
(s232 0.0)
(s233 0.0)
(s234 0.0)
(s235 0.0)
(s236 0.0)
(s237 0.0)
(s238 0.0)
(s239 0.0)
(s240 0.0)
(s241 0.0)
(s242 0.0)
(s243 0.0)
(s244 0.0)
(s245 0.0)
(s246 0.0)
(s247 0.0)
(s248 0.0)
(s249 0.0)
(s250 0.0)
(s251 0.0)
(s252 0.0)
(s253 0.0)
(s254 0.0)
(s255 0.0)
(s256 0.0)
(s257 0.0)
(s258 0.0)
(s259 0.0)
(s260 0.0)
(s261 0.0)
(s262 0.0)
(s263 0.0)
(s264 0.0)
(s265 0.0)
(s266 0.0)
(s267 0.0)
(s268 0.0)
(s269 0.0)
(s270 0.0)
(s271 0.0)
(s272 0.0)
(s273 0.0)
(s274 0.0)
(s275 0.0)
(s276 0.0)
(s277 0.0)
(s278 0.0)
(s279 0.0)
(s280 0.0)
(s281 0.0)
(s282 0.0)
(s283 0.0)
(s284 0.0)
(s285 0.0)
(s286 0.0)
(s287 0.0)
(s288 0.0)
(s289 0.0)
(s290 0.0)
(s291 0.0)
(s292 0.0)
(s293 0.0)
(s294 0.0)
(s295 0.0)
(s296 0.0)
(s297 0.0)
(s298 0.0)
(s299 0.0)
(s300 0.0)
(s301 0.0)
(s302 0.0)
(s303 0.0)
(s304 0.0)
(s305 0.0)
(s306 0.0)
(s307 0.0)
(s308 0.0)
(s309 0.0)
(s310 0.0)
(s311 0.0)
(s312 0.0)
(s313 0.0)
(s314 0.0)
(s315 0.0)
(s316 0.0)
(s317 0.0)
(s318 0.0)
(s319 0.0)
(s320 0.0)
(s321 0.0)
(s322 0.0)
(s323 0.0)
(s324 0.0)
(s325 0.0)
(s326 1.0)
(s327 1.0)
(s328 1.0)
(s329 1.0)
(s330 1.0)
(s331 1.0)
(s332 0.0)
(s333 0.0)
(s334 0.0)
(s335 0.0)
(s336 1.0)
(s337 1.0)
(s338 1.0)
(s339 1.0)
(s340 1.0)
(s341 1.0)
(s342 1.0)
(s343 1.0)
(s344 1.0)
(s345 1.0)
(s346 1.0)
(s347 1.0)
(s348 1.0)
(s349 1.0)
(s350 1.0)
(s351 1.0)
(s352 1.0)
(s353 1.0)
(s354 1.0)
(s355 0.0)
(s356 0.0)
(s357 0.0)
(s358 0.0)
(s359 0.0)
(s360 0.0)
(s361 0.0)
(s362 0.0)
(s363 0.0)
(s364 0.0)
(s365 0.0)
(s366 0.0)
(s367 0.0)
(s368 0.0)
(s369 0.0)
(s370 0.0)
(s371 0.0)
(s372 0.0)
(s373 0.0)
(s374 0.0)
(s375 0.0)
(s376 0.0)
(s377 0.0)
(s378 0.0)
(s379 0.0)
(s380 0.0)
(s381 0.0)
(s382 0.0)
(s383 0.0)
(s384 0.0)
(s385 0.0)
(s386 0.0)
(s387 0.0)
(s388 0.0)
(s389 0.0)
(s390 0.0)
(s391 0.0)
(s392 0.0)
(s393 0.0)
(s394 0.0)
(s395 0.0)
(s396 0.0)
(s397 0.0)
(s398 0.0)
(s399 0.0)
(s400 0.0)
(s401 0.0)
(s402 0.0)
(s403 0.0)
(s404 0.0)
(s405 0.0)
(s406 0.0)
(s407 0.0)
(s408 0.0)
(s409 timeout
0.0 org.smtlib.IParser$ParserException: Unbalanced parentheses at end of input")
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 421/1109 variables, and 4 constraints, problems are : Problem set: 0 solved, 1216 unsolved in 30020 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/421 constraints, ReadFeed: 0/75 constraints, PredecessorRefiner: 1216/1216 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1216 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/421 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/421 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
Detected timeout of ITS tools.
[2026-05-25 10:23:01] [INFO ] Flatten gal took : 30 ms
[2026-05-25 10:23:01] [INFO ] Applying decomposition
[2026-05-25 10:23:01] [INFO ] Flatten gal took : 27 ms
Converted graph to binary with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/convert-linux64' '-i' '/tmp/graph13409178385051284677.txt' '-o' '/tmp/graph13409178385051284677.bin' '-w' '/tmp/graph13409178385051284677.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/louvain-linux64' '/tmp/graph13409178385051284677.bin' '-l' '-1' '-v' '-w' '/tmp/graph13409178385051284677.weights' '-q' '0' '-e' '0.001'
[2026-05-25 10:23:01] [INFO ] Decomposing Gal with order
[2026-05-25 10:23:01] [INFO ] Rewriting arrays to variables to allow decomposition.
[2026-05-25 10:23:01] [INFO ] Removed a total of 2082 redundant transitions.
[2026-05-25 10:23:01] [INFO ] Flatten gal took : 54 ms
[2026-05-25 10:23:01] [INFO ] Fuse similar labels procedure discarded/fused a total of 841 labels/synchronizations in 17 ms.
[2026-05-25 10:23:01] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality15931002665310260579.gal : 5 ms
[2026-05-25 10:23:01] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality17623413634725974038.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/ReachabilityCardinality15931002665310260579.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality17623413634725974038.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/ReachabilityCardinality17623413634725974038.prop.
At refinement iteration 2 (INCLUDED_ONLY) 0/421 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
At refinement iteration 3 (OVERLAPS) 688/1109 variables, 421/425 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1109 variables, 75/500 constraints. Problems are: Problem set: 0 solved, 1216 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1109/1109 variables, and 1716 constraints, problems are : Problem set: 0 solved, 1216 unsolved in 30796 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 421/421 constraints, ReadFeed: 75/75 constraints, PredecessorRefiner: 1216/1216 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 62644ms problems are : Problem set: 0 solved, 1216 unsolved
Search for dead transitions found 0 dead transitions in 62646ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 64623 ms. Remains : 421/421 places, 1218/1218 transitions.
Attempting over-approximation, by ignoring read arcs.
Ensure Unique test removed 530 transitions
Reduce isomorphic transitions removed 530 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 10 transitions
Trivial Post-agglo rules discarded 10 transitions
Performed 10 trivial Post agglomeration. Transition count delta: 10
Iterating post reduction 0 with 540 rules applied. Total rules applied 540 place count 421 transition count 678
Reduce places removed 10 places and 0 transitions.
Iterating post reduction 1 with 10 rules applied. Total rules applied 550 place count 411 transition count 678
Performed 73 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 73 Pre rules applied. Total rules applied 550 place count 411 transition count 605
Deduced a syphon composed of 73 places in 0 ms
Reduce places removed 73 places and 0 transitions.
Iterating global reduction 2 with 146 rules applied. Total rules applied 696 place count 338 transition count 605
Performed 127 Post agglomeration using F-continuation condition.Transition count delta: 127
Deduced a syphon composed of 127 places in 0 ms
Reduce places removed 127 places and 0 transitions.
Iterating global reduction 2 with 254 rules applied. Total rules applied 950 place count 211 transition count 478
Discarding 64 places :
Symmetric choice reduction at 2 with 64 rule applications. Total rules 1014 place count 147 transition count 350
Iterating global reduction 2 with 64 rules applied. Total rules applied 1078 place count 147 transition count 350
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 2 with 1 rules applied. Total rules applied 1079 place count 147 transition count 349
Discarding 63 places :
Symmetric choice reduction at 3 with 63 rule applications. Total rules 1142 place count 84 transition count 223
Iterating global reduction 3 with 63 rules applied. Total rules applied 1205 place count 84 transition count 223
Discarding 63 places :
Symmetric choice reduction at 3 with 63 rule applications. Total rules 1268 place count 21 transition count 97
Iterating global reduction 3 with 63 rules applied. Total rules applied 1331 place count 21 transition count 97
Ensure Unique test removed 63 transitions
Reduce isomorphic transitions removed 63 transitions.
Iterating post reduction 3 with 63 rules applied. Total rules applied 1394 place count 21 transition count 34
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 4 with 1 Pre rules applied. Total rules applied 1394 place count 21 transition count 33
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 4 with 2 rules applied. Total rules applied 1396 place count 20 transition count 33
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 4 with 2 rules applied. Total rules applied 1398 place count 19 transition count 32
Drop transitions (Redundant composition of simpler transitions.) removed 1 transitions
Redundant transition composition rules discarded 1 transitions
Iterating global reduction 4 with 1 rules applied. Total rules applied 1399 place count 19 transition count 31
Applied a total of 1399 rules in 53 ms. Remains 19 /421 variables (removed 402) and now considering 31/1218 (removed 1187) transitions.
Running SMT prover for 1 properties.
// Phase 1: matrix 31 rows 19 cols
[2026-05-25 10:23:30] [INFO ] Computed 3 invariants in 0 ms
Starting Z3 with timeout 450.0 s and query timeout 45000.0 ms
[2026-05-25 10:23:30] [INFO ] [Real]Absence check using 3 positive place invariants in 1 ms returned sat
[2026-05-25 10:23:30] [INFO ] After 8ms SMT Verify possible using state equation in real domain returned unsat :0 sat :1
[2026-05-25 10:23:30] [INFO ] State equation strengthened by 2 read => feed constraints.
[2026-05-25 10:23:30] [INFO ] After 2ms SMT Verify possible using 2 Read/Feed constraints in real domain returned unsat :0 sat :0 real:1
[2026-05-25 10:23:30] [INFO ] After 27ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
Starting Z3 with timeout 450.0 s and query timeout 45000.0 ms
[2026-05-25 10:23:30] [INFO ] [Nat]Absence check using 3 positive place invariants in 1 ms returned sat
[2026-05-25 10:23:30] [INFO ] After 6ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
[2026-05-25 10:23:30] [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 10:23:30] [INFO ] After 3ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
[2026-05-25 10:23:30] [INFO ] After 28ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
[2026-05-25 10:23:30] [INFO ] Flatten gal took : 1 ms
[2026-05-25 10:23:30] [INFO ] Flatten gal took : 1 ms
[2026-05-25 10:23:30] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality14920705243260636970.gal : 1 ms
[2026-05-25 10:23:30] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality5798011980359287463.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/ReachabilityCardinality14920705243260636970.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality5798011980359287463.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/ReachabilityCardinality5798011980359287463.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 30
SDD proceeding with computation,1 properties remain. new max is 16
SDD size :30 after 105
SDD proceeding with computation,1 properties remain. new max is 32
SDD size :105 after 705
SDD proceeding with computation,1 properties remain. new max is 64
SDD size :705 after 2025
SDD proceeding with computation,1 properties remain. new max is 128
SDD size :2025 after 4625
SDD proceeding with computation,1 properties remain. new max is 256
SDD size :4625 after 9785
SDD proceeding with computation,1 properties remain. new max is 512
SDD size :9785 after 20065
SDD proceeding with computation,1 properties remain. new max is 1024
SDD size :20065 after 40585
SDD proceeding with computation,1 properties remain. new max is 2048
SDD size :40585 after 81585
SDD proceeding with computation,1 properties remain. new max is 4096
SDD size :81585 after 163545
Detected timeout of ITS tools.
[2026-05-25 10:23:45] [INFO ] Flatten gal took : 1 ms
[2026-05-25 10:23:45] [INFO ] Applying decomposition
[2026-05-25 10:23:45] [INFO ] Flatten gal took : 0 ms
Converted graph to binary with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/convert-linux64' '-i' '/tmp/graph12877472165933253648.txt' '-o' '/tmp/graph12877472165933253648.bin' '-w' '/tmp/graph12877472165933253648.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/louvain-linux64' '/tmp/graph12877472165933253648.bin' '-l' '-1' '-v' '-w' '/tmp/graph12877472165933253648.weights' '-q' '0' '-e' '0.001'
[2026-05-25 10:23:45] [INFO ] Decomposing Gal with order
[2026-05-25 10:23:45] [INFO ] Rewriting arrays to variables to allow decomposition.
[2026-05-25 10:23:45] [INFO ] Removed a total of 30 redundant transitions.
[2026-05-25 10:23:45] [INFO ] Flatten gal took : 1 ms
[2026-05-25 10:23:45] [INFO ] Fuse similar labels procedure discarded/fused a total of 2 labels/synchronizations in 0 ms.
[2026-05-25 10:23:45] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality6941269809342958115.gal : 0 ms
[2026-05-25 10:23:45] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality5576655203493579460.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/ReachabilityCardinality6941269809342958115.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality5576655203493579460.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/ReachabilityCardinality5576655203493579460.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 30
Detected timeout of ITS tools.
Detected timeout of ITS tools.
Over-approximation ignoring read arcs solved 0 properties in 30185 ms.
Current structural bounds on expressions (After reachability solving 0 queries.) : Max Seen:[480] Max Struct:[+inf]
Ending property specific reduction for FunctionPointer-PT-c004-UpperBounds-14 in 249808 ms.
Starting property specific reduction for FunctionPointer-PT-c004-UpperBounds-15
Current structural bounds on expressions (Initially) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (Adding known information on max bounds.) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (Before main loop) : Max Seen:[0] Max Struct:[+inf]
[2026-05-25 10:24:00] [INFO ] Flow matrix only has 721 transitions (discarded 543 similar events)
// Phase 1: matrix 721 rows 441 cols
[2026-05-25 10:24:00] [INFO ] Computed 3 invariants in 7 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[+inf]
RANDOM walk for 10000 steps (2 resets) in 38 ms. (256 steps per ms)
BEST_FIRST walk for 10001 steps (2 resets) in 8 ms. (1111 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0] Max Struct:[+inf]
[2026-05-25 10:24:00] [INFO ] Flow matrix only has 721 transitions (discarded 543 similar events)
[2026-05-25 10:24:00] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 10:24:00] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:24:00] [INFO ] [Real]Absence check using state equation in 131 ms returned sat
[2026-05-25 10:24:00] [INFO ] State equation strengthened by 83 read => feed constraints.
[2026-05-25 10:24:00] [INFO ] [Real]Added 83 Read/Feed constraints in 30 ms returned sat
[2026-05-25 10:24:00] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 10:24:00] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 10:24:00] [INFO ] [Nat]Absence check using state equation in 129 ms returned sat
[2026-05-25 10:24:00] [INFO ] [Nat]Added 83 Read/Feed constraints in 18 ms returned sat
[2026-05-25 10:24:00] [INFO ] Computed and/alt/rep : 348/2064/341 causal constraints (skipped 378 transitions) in 67 ms.
[2026-05-25 10:24:00] [INFO ] Added : 4 causal constraints over 2 iterations in 220 ms. Result :sat
Minimization took 254 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0] Max Struct:[+inf]
Support contains 1 out of 441 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 441/441 places, 1264/1264 transitions.
Discarding 3 places :
Symmetric choice reduction at 0 with 3 rule applications. Total rules 3 place count 438 transition count 1258
Iterating global reduction 0 with 3 rules applied. Total rules applied 6 place count 438 transition count 1258
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 0 with 2 rules applied. Total rules applied 8 place count 438 transition count 1256
Discarding 3 places :
Symmetric choice reduction at 1 with 3 rule applications. Total rules 11 place count 435 transition count 1248
Iterating global reduction 1 with 3 rules applied. Total rules applied 14 place count 435 transition count 1248
Discarding 3 places :
Symmetric choice reduction at 1 with 3 rule applications. Total rules 17 place count 432 transition count 1240
Iterating global reduction 1 with 3 rules applied. Total rules applied 20 place count 432 transition count 1240
Discarding 3 places :
Symmetric choice reduction at 1 with 3 rule applications. Total rules 23 place count 429 transition count 1232
Iterating global reduction 1 with 3 rules applied. Total rules applied 26 place count 429 transition count 1232
Discarding 3 places :
Symmetric choice reduction at 1 with 3 rule applications. Total rules 29 place count 426 transition count 1226
Iterating global reduction 1 with 3 rules applied. Total rules applied 32 place count 426 transition count 1226
Discarding 3 places :
Symmetric choice reduction at 1 with 3 rule applications. Total rules 35 place count 423 transition count 1220
Iterating global reduction 1 with 3 rules applied. Total rules applied 38 place count 423 transition count 1220
Discarding 3 places :
Symmetric choice reduction at 1 with 3 rule applications. Total rules 41 place count 420 transition count 1214
Iterating global reduction 1 with 3 rules applied. Total rules applied 44 place count 420 transition count 1214
Discarding 3 places :
Symmetric choice reduction at 1 with 3 rule applications. Total rules 47 place count 417 transition count 1208
Iterating global reduction 1 with 3 rules applied. Total rules applied 50 place count 417 transition count 1208
Discarding 2 places :
Symmetric choice reduction at 1 with 2 rule applications. Total rules 52 place count 415 transition count 1204
Iterating global reduction 1 with 2 rules applied. Total rules applied 54 place count 415 transition count 1204
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 55 place count 414 transition count 1202
Iterating global reduction 1 with 1 rules applied. Total rules applied 56 place count 414 transition count 1202
Applied a total of 56 rules in 124 ms. Remains 414 /441 variables (removed 27) and now considering 1202/1264 (removed 62) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 124 ms. Remains : 414/441 places, 1202/1264 transitions.
[2026-05-25 10:24:01] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {222=1, 307=1, 504=1, 674=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {252=1, 337=1, 534=1, 674=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 40 ms. (steps per millisecond=250 ) properties (out of 1) seen :[4]
Current structural bounds on expressions (after cover walk) : Max Seen:[4] Max Struct:[+inf]
[2026-05-25 10:24:01] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
// Phase 1: matrix 678 rows 414 cols
[2026-05-25 10:24:01] [INFO ] Computed 3 invariants in 7 ms
Current structural bounds on expressions (after invariants) : Max Seen:[4] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 2598 ms. (384 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 632 ms. (1579 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[4] Max Struct:[+inf]
[2026-05-25 10:24:04] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2026-05-25 10:24:04] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:24:04] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:24:05] [INFO ] [Real]Absence check using state equation in 117 ms returned sat
[2026-05-25 10:24:05] [INFO ] State equation strengthened by 74 read => feed constraints.
[2026-05-25 10:24:05] [INFO ] [Real]Added 74 Read/Feed constraints in 39 ms returned sat
[2026-05-25 10:24:05] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 10:24:05] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-25 10:24:05] [INFO ] [Nat]Absence check using state equation in 126 ms returned sat
[2026-05-25 10:24:05] [INFO ] [Nat]Added 74 Read/Feed constraints in 38 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:24:05] [INFO ] Deduced a trap composed of 70 places in 218 ms of which 27 ms to minimize.
[2026-05-25 10:24:05] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 278 ms
[2026-05-25 10:24:05] [INFO ] Computed and/alt/rep : 333/1251/331 causal constraints (skipped 345 transitions) in 70 ms.
[2026-05-25 10:24:05] [INFO ] Added : 7 causal constraints over 4 iterations in 266 ms. Result :sat
Minimization took 251 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[4] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[4] Max Struct:[+inf]
Support contains 1 out of 414 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 414/414 places, 1202/1202 transitions.
Applied a total of 0 rules in 44 ms. Remains 414 /414 variables (removed 0) and now considering 1202/1202 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 44 ms. Remains : 414/414 places, 1202/1202 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 414/414 places, 1202/1202 transitions.
Applied a total of 0 rules in 43 ms. Remains 414 /414 variables (removed 0) and now considering 1202/1202 (removed 0) transitions.
[2026-05-25 10:24:06] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2026-05-25 10:24:06] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 10:24:06] [INFO ] Implicit Places using invariants in 298 ms returned []
[2026-05-25 10:24:06] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2026-05-25 10:24:06] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 10:24:06] [INFO ] State equation strengthened by 74 read => feed constraints.
[2026-05-25 10:24:09] [INFO ] Implicit Places using invariants and state equation in 3255 ms returned []
Implicit Place search using SMT with State Equation took 3554 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-25 10:24:09] [INFO ] Redundant transitions in 30 ms returned []
Running 1200 sub problems to find dead transitions.
[2026-05-25 10:24:09] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2026-05-25 10:24:09] [INFO ] Invariant cache hit.
[2026-05-25 10:24:09] [INFO ] State equation strengthened by 74 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/414 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 10:24:19] [INFO ] Deduced a trap composed of 131 places in 146 ms of which 7 ms to minimize.
At refinement iteration 1 (INCLUDED_ONLY) 0/414 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 414/1092 variables, and 4 constraints, problems are : Problem set: 0 solved, 1200 unsolved in 30020 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 0/414 constraints, ReadFeed: 0/74 constraints, PredecessorRefiner: 1200/1200 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1200 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/414 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/414 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/414 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 3 (OVERLAPS) 678/1092 variables, 414/418 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1092 variables, 74/492 constraints. Problems are: Problem set: 0 solved, 1200 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1092/1092 variables, and 1692 constraints, problems are : Problem set: 0 solved, 1200 unsolved in 30801 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 414/414 constraints, ReadFeed: 74/74 constraints, PredecessorRefiner: 1200/1200 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 62312ms problems are : Problem set: 0 solved, 1200 unsolved
Search for dead transitions found 0 dead transitions in 62314ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 65952 ms. Remains : 414/414 places, 1202/1202 transitions.
[2026-05-25 10:25:12] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {222=1, 307=1, 504=1, 674=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {252=1, 337=1, 534=1, 674=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 48 ms. (steps per millisecond=208 ) properties (out of 1) seen :[0]
Current structural bounds on expressions (after cover walk) : Max Seen:[4] Max Struct:[+inf]
[2026-05-25 10:25:12] [INFO ] Flatten gal took : 43 ms
RANDOM walk for 40000 steps (8 resets) in 193 ms. (206 steps per ms) remains 1/1 properties
[2026-05-25 10:25:12] [INFO ] Flatten gal took : 28 ms
BEST_FIRST walk for 40003 steps (8 resets) in 90 ms. (439 steps per ms) remains 1/1 properties
[2026-05-25 10:25:12] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality12391913798884202816.gal : 9 ms
[2026-05-25 10:25:12] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality4216167281757314373.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/ReachabilityCardinality12391913798884202816.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality4216167281757314373.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/ReachabilityCardinality4216167281757314373.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 1862
SDD proceeding with computation,1 properties remain. new max is 16
SDD size :1862 after 695653
Interrupted probabilistic random walk after 562889 steps, run timeout after 3001 ms. (steps per millisecond=187 ) properties seen :0 out of 1
Probabilistic random walk after 562889 steps, saw 345155 distinct states, run finished after 3001 ms. (steps per millisecond=187 ) properties seen :0
[2026-05-25 10:25:15] [INFO ] Flow matrix only has 678 transitions (discarded 524 similar events)
[2026-05-25 10:25:15] [INFO ] Invariant cache hit.
[2026-05-25 10:25:15] [INFO ] State equation strengthened by 74 read => feed constraints.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 3/4 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/4 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 343/347 variables, 5/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/347 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 6/353 variables, 2/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/353 variables, 2/10 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/353 variables, 0/10 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 596/949 variables, 333/343 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 9 (INCLUDED_ONLY) 0/949 variables, 74/417 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/949 variables, 0/417 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 62/1011 variables, 1/418 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/1011 variables, 0/418 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 67/1078 variables, 65/483 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/1078 variables, 0/483 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 8/1086 variables, 4/487 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/1086 variables, 0/487 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 6/1092 variables, 4/491 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/1092 variables, 0/491 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 0/1092 variables, 0/491 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 1092/1092 variables, and 491 constraints, problems are : Problem set: 0 solved, 1 unsolved in 369 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 414/414 constraints, ReadFeed: 74/74 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 3/4 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/4 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 343/347 variables, 5/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/347 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 6/353 variables, 2/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/353 variables, 2/10 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/353 variables, 0/10 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 596/949 variables, 333/343 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/949 variables, 74/417 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/949 variables, 1/418 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/949 variables, 0/418 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 62/1011 variables, 1/419 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/1011 variables, 0/419 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 67/1078 variables, 65/484 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/1078 variables, 0/484 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 8/1086 variables, 4/488 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/1086 variables, 0/488 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 6/1092 variables, 4/492 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/1092 variables, 0/492 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (OVERLAPS) 0/1092 variables, 0/492 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 1092/1092 variables, and 492 constraints, problems are : Problem set: 0 solved, 1 unsolved in 438 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 414/414 constraints, ReadFeed: 74/74 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 815ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 0 ms.
Support contains 1 out of 414 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 414/414 places, 1202/1202 transitions.
Applied a total of 0 rules in 46 ms. Remains 414 /414 variables (removed 0) and now considering 1202/1202 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 47 ms. Remains : 414/414 places, 1202/1202 transitions.
RANDOM walk for 40002 steps (8 resets) in 197 ms. (202 steps per ms) remains 1/1 properties
BEST_FIRST walk for 37806 steps (8 resets) in 41 ms. (900 steps per ms) remains 0/1 properties
ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
Current structural bounds on expressions (After reachability solving 0 queries.) : Max Seen:[4] Max Struct:[+inf]
Ending property specific reduction for FunctionPointer-PT-c004-UpperBounds-15 in 76278 ms.
[2026-05-25 10:25:16] [INFO ] Flatten gal took : 27 ms
[2026-05-25 10:25:16] [INFO ] Applying decomposition
[2026-05-25 10:25:16] [INFO ] Flatten gal took : 27 ms
Converted graph to binary with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/convert-linux64' '-i' '/tmp/graph10348513260307607521.txt' '-o' '/tmp/graph10348513260307607521.bin' '-w' '/tmp/graph10348513260307607521.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/louvain-linux64' '/tmp/graph10348513260307607521.bin' '-l' '-1' '-v' '-w' '/tmp/graph10348513260307607521.weights' '-q' '0' '-e' '0.001'
[2026-05-25 10:25:16] [INFO ] Decomposing Gal with order
[2026-05-25 10:25:16] [INFO ] Rewriting arrays to variables to allow decomposition.
[2026-05-25 10:25:16] [INFO ] Removed a total of 2171 redundant transitions.
[2026-05-25 10:25:16] [INFO ] Flatten gal took : 51 ms
[2026-05-25 10:25:16] [INFO ] Fuse similar labels procedure discarded/fused a total of 949 labels/synchronizations in 20 ms.
[2026-05-25 10:25:16] [INFO ] Time to serialize gal into /tmp/UpperBounds10006608540314753168.gal : 6 ms
[2026-05-25 10:25:16] [INFO ] Time to serialize properties into /tmp/UpperBounds14108400620430605019.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/UpperBounds10006608540314753168.gal' '-t' 'CGAL' '-reachable-file' '/tmp/UpperBounds14108400620430605019.prop' '--nowitness'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...285
Loading property file /tmp/UpperBounds14108400620430605019.prop.
Detected timeout of ITS tools.
[2026-05-25 10:51:41] [INFO ] Flatten gal took : 26 ms
[2026-05-25 10:51:41] [INFO ] Time to serialize gal into /tmp/UpperBounds7623860824262362026.gal : 9 ms
[2026-05-25 10:51:41] [INFO ] Time to serialize properties into /tmp/UpperBounds17452048070573788453.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/UpperBounds7623860824262362026.gal' '-t' 'CGAL' '-reachable-file' '/tmp/UpperBounds17452048070573788453.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/UpperBounds17452048070573788453.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-c004"
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-c004, 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-177961079800016"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/FunctionPointer-PT-c004.tgz
mv FunctionPointer-PT-c004 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 ;