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.r095-smll-177946996300022.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2026-input.qcow2 backing_fmt=qcow2 cluster_size=65536 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
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=====================================================================
Generated by BenchKit 2-5973
Executing tool gold2025
Input is DBSingleClientW-PT-d1m08, examination is UpperBounds
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r095-smll-177946996300022
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 824K
-rw-r--r-- 1 mcc users 7.4K Mar 6 18:23 CTLCardinality.txt
-rw-r--r-- 1 mcc users 80K Mar 6 18:23 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.1K Mar 6 18:23 CTLFireability.txt
-rw-r--r-- 1 mcc users 43K Mar 6 18:23 CTLFireability.xml
-rw-r--r-- 1 mcc users 3.7K Mar 15 08:48 LTLCardinality.txt
-rw-r--r-- 1 mcc users 26K Mar 15 08:48 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.3K Mar 15 08:48 LTLFireability.txt
-rw-r--r-- 1 mcc users 17K Mar 15 08:48 LTLFireability.xml
-rw-r--r-- 1 mcc users 8.3K Mar 6 18:23 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 78K Mar 6 18:23 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 8.3K Mar 6 18:23 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 71K Mar 6 18:23 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K Mar 15 08:48 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.8K Mar 15 08:48 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 equiv_col
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 instance
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 iscolored
-rw-r--r-- 1 mcc users 432K 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 DBSingleClientW-PT-d1m08-UpperBounds-00
FORMULA_NAME DBSingleClientW-PT-d1m08-UpperBounds-01
FORMULA_NAME DBSingleClientW-PT-d1m08-UpperBounds-02
FORMULA_NAME DBSingleClientW-PT-d1m08-UpperBounds-03
FORMULA_NAME DBSingleClientW-PT-d1m08-UpperBounds-04
FORMULA_NAME DBSingleClientW-PT-d1m08-UpperBounds-05
FORMULA_NAME DBSingleClientW-PT-d1m08-UpperBounds-06
FORMULA_NAME DBSingleClientW-PT-d1m08-UpperBounds-07
FORMULA_NAME DBSingleClientW-PT-d1m08-UpperBounds-08
FORMULA_NAME DBSingleClientW-PT-d1m08-UpperBounds-09
FORMULA_NAME DBSingleClientW-PT-d1m08-UpperBounds-10
FORMULA_NAME DBSingleClientW-PT-d1m08-UpperBounds-11
FORMULA_NAME DBSingleClientW-PT-d1m08-UpperBounds-12
FORMULA_NAME DBSingleClientW-PT-d1m08-UpperBounds-13
FORMULA_NAME DBSingleClientW-PT-d1m08-UpperBounds-14
FORMULA_NAME DBSingleClientW-PT-d1m08-UpperBounds-15

=== Now, execution of the tool begins

BK_START 1779525681014

Invoking MCC driver with
GOLD_TOOL=
BK_EXAMINATION=UpperBounds
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=DBSingleClientW-PT-d1m08
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
UpperBounds PT
Running Version 202505121319
[2026-05-23 08:41:23] [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]
[2026-05-23 08:41:23] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-23 08:41:23] [INFO ] Load time of PNML (sax parser for PT used): 372 ms
[2026-05-23 08:41:23] [INFO ] Transformed 1440 places.
[2026-05-23 08:41:23] [INFO ] Transformed 672 transitions.
[2026-05-23 08:41:24] [INFO ] Parsed PT model containing 1440 places and 672 transitions and 2688 arcs in 596 ms.
Parsed 16 properties from file /home/mcc/execution/UpperBounds.xml in 16 ms.
Deduced a syphon composed of 1093 places in 12 ms
Reduce places removed 1093 places and 0 transitions.
FORMULA DBSingleClientW-PT-d1m08-UpperBounds-00 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA DBSingleClientW-PT-d1m08-UpperBounds-02 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA DBSingleClientW-PT-d1m08-UpperBounds-03 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA DBSingleClientW-PT-d1m08-UpperBounds-05 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA DBSingleClientW-PT-d1m08-UpperBounds-07 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA DBSingleClientW-PT-d1m08-UpperBounds-08 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA DBSingleClientW-PT-d1m08-UpperBounds-09 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA DBSingleClientW-PT-d1m08-UpperBounds-12 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA DBSingleClientW-PT-d1m08-UpperBounds-13 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA DBSingleClientW-PT-d1m08-UpperBounds-14 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA DBSingleClientW-PT-d1m08-UpperBounds-15 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
Current structural bounds on expressions (Initially) : Max Seen:[0, 0, 0, 0, 0] Max Struct:[+inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (Before main loop) : Max Seen:[0, 0, 0, 0, 0] Max Struct:[+inf, +inf, +inf, +inf, +inf]
// Phase 1: matrix 672 rows 347 cols
[2026-05-23 08:41:24] [INFO ] Computed 6 invariants in 55 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0, 0, 0, 0, 0] Max Struct:[7, 8, 7, 8, 10]
RANDOM walk for 10000 steps (2263 resets) in 313 ms. (31 steps per ms)
BEST_FIRST walk for 50002 steps (4902 resets) in 516 ms. (96 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0, 0, 0, 0, 1] Max Struct:[7, 8, 7, 8, 10]
[2026-05-23 08:41:25] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 08:41:25] [INFO ] [Real]Absence check using 2 positive place invariants in 20 ms returned sat
[2026-05-23 08:41:25] [INFO ] [Real]Absence check using 2 positive and 4 generalized place invariants in 16 ms returned sat
[2026-05-23 08:41:26] [INFO ] [Real]Absence check using state equation in 475 ms returned sat
[2026-05-23 08:41:26] [INFO ] State equation strengthened by 418 read => feed constraints.
[2026-05-23 08:41:26] [INFO ] [Real]Added 418 Read/Feed constraints in 269 ms returned sat
[2026-05-23 08:41:26] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 08:41:27] [INFO ] [Nat]Absence check using 2 positive place invariants in 9 ms returned sat
[2026-05-23 08:41:27] [INFO ] [Nat]Absence check using 2 positive and 4 generalized place invariants in 8 ms returned sat
[2026-05-23 08:41:27] [INFO ] [Nat]Absence check using state equation in 451 ms returned sat
[2026-05-23 08:41:27] [INFO ] [Nat]Added 418 Read/Feed constraints in 232 ms returned sat
[2026-05-23 08:41:28] [INFO ] Computed and/alt/rep : 126/406/126 causal constraints (skipped 545 transitions) in 313 ms.
[2026-05-23 08:41:28] [INFO ] Added : 14 causal constraints over 3 iterations in 651 ms. Result :sat
Minimization took 554 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 08:41:29] [INFO ] [Real]Absence check using 2 positive place invariants in 10 ms returned sat
[2026-05-23 08:41:29] [INFO ] [Real]Absence check using 2 positive and 4 generalized place invariants in 8 ms returned sat
[2026-05-23 08:41:29] [INFO ] [Real]Absence check using state equation in 375 ms returned sat
[2026-05-23 08:41:29] [INFO ] [Real]Added 418 Read/Feed constraints in 231 ms returned sat
[2026-05-23 08:41:29] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 08:41:29] [INFO ] [Nat]Absence check using 2 positive place invariants in 7 ms returned sat
[2026-05-23 08:41:29] [INFO ] [Nat]Absence check using 2 positive and 4 generalized place invariants in 8 ms returned sat
[2026-05-23 08:41:30] [INFO ] [Nat]Absence check using state equation in 340 ms returned sat
[2026-05-23 08:41:30] [INFO ] [Nat]Added 418 Read/Feed constraints in 144 ms returned sat
[2026-05-23 08:41:30] [INFO ] Computed and/alt/rep : 126/406/126 causal constraints (skipped 545 transitions) in 120 ms.
[2026-05-23 08:41:30] [INFO ] Added : 12 causal constraints over 3 iterations in 412 ms. Result :sat
Minimization took 555 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 08:41:31] [INFO ] [Real]Absence check using 2 positive place invariants in 6 ms returned sat
[2026-05-23 08:41:31] [INFO ] [Real]Absence check using 2 positive and 4 generalized place invariants in 8 ms returned sat
[2026-05-23 08:41:31] [INFO ] [Real]Absence check using state equation in 249 ms returned sat
[2026-05-23 08:41:31] [INFO ] [Real]Added 418 Read/Feed constraints in 115 ms returned sat
[2026-05-23 08:41:31] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 08:41:32] [INFO ] [Nat]Absence check using 2 positive place invariants in 7 ms returned sat
[2026-05-23 08:41:32] [INFO ] [Nat]Absence check using 2 positive and 4 generalized place invariants in 8 ms returned sat
[2026-05-23 08:41:32] [INFO ] [Nat]Absence check using state equation in 232 ms returned sat
[2026-05-23 08:41:32] [INFO ] [Nat]Added 418 Read/Feed constraints in 110 ms returned sat
[2026-05-23 08:41:32] [INFO ] Computed and/alt/rep : 126/406/126 causal constraints (skipped 545 transitions) in 106 ms.
[2026-05-23 08:41:32] [INFO ] Added : 2 causal constraints over 1 iterations in 231 ms. Result :sat
Minimization took 555 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 08:41:33] [INFO ] [Real]Absence check using 2 positive place invariants in 11 ms returned sat
[2026-05-23 08:41:33] [INFO ] [Real]Absence check using 2 positive and 4 generalized place invariants in 10 ms returned sat
[2026-05-23 08:41:33] [INFO ] [Real]Absence check using state equation in 405 ms returned sat
[2026-05-23 08:41:34] [INFO ] [Real]Added 418 Read/Feed constraints in 255 ms returned sat
[2026-05-23 08:41:34] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 08:41:34] [INFO ] [Nat]Absence check using 2 positive place invariants in 11 ms returned sat
[2026-05-23 08:41:34] [INFO ] [Nat]Absence check using 2 positive and 4 generalized place invariants in 8 ms returned sat
[2026-05-23 08:41:34] [INFO ] [Nat]Absence check using state equation in 395 ms returned sat
[2026-05-23 08:41:34] [INFO ] [Nat]Added 418 Read/Feed constraints in 190 ms returned sat
[2026-05-23 08:41:35] [INFO ] Computed and/alt/rep : 126/406/126 causal constraints (skipped 545 transitions) in 139 ms.
[2026-05-23 08:41:35] [INFO ] Added : 5 causal constraints over 1 iterations in 331 ms. Result :sat
Minimization took 549 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 08:41:35] [INFO ] [Real]Absence check using 2 positive place invariants in 10 ms returned sat
[2026-05-23 08:41:35] [INFO ] [Real]Absence check using 2 positive and 4 generalized place invariants in 9 ms returned sat
[2026-05-23 08:41:36] [INFO ] [Real]Absence check using state equation in 361 ms returned sat
[2026-05-23 08:41:36] [INFO ] [Real]Added 418 Read/Feed constraints in 214 ms returned sat
[2026-05-23 08:41:36] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 08:41:36] [INFO ] [Nat]Absence check using 2 positive place invariants in 10 ms returned sat
[2026-05-23 08:41:36] [INFO ] [Nat]Absence check using 2 positive and 4 generalized place invariants in 9 ms returned sat
[2026-05-23 08:41:37] [INFO ] [Nat]Absence check using state equation in 383 ms returned sat
[2026-05-23 08:41:37] [INFO ] [Nat]Added 418 Read/Feed constraints in 242 ms returned sat
[2026-05-23 08:41:37] [INFO ] Computed and/alt/rep : 126/406/126 causal constraints (skipped 545 transitions) in 129 ms.
[2026-05-23 08:41:37] [INFO ] Added : 2 causal constraints over 1 iterations in 362 ms. Result :sat
Minimization took 635 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0, 0, 0, 0, 1] Max Struct:[7, 8, 7, 8, 10]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0, 0, 0, 0, 1] Max Struct:[7, 8, 7, 8, 10]
Support contains 5 out of 347 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 347/347 places, 672/672 transitions.
Graph (complete) has 1246 edges and 347 vertex of which 325 are kept as prefixes of interest. Removing 22 places using SCC suffix rule.7 ms
Discarding 22 places :
Also discarding 0 output transitions
Drop transitions (Empty/Sink Transition effects.) removed 8 transitions
Ensure Unique test removed 80 transitions
Reduce isomorphic transitions removed 88 transitions.
Iterating post reduction 0 with 88 rules applied. Total rules applied 89 place count 325 transition count 584
Discarding 93 places :
Symmetric choice reduction at 1 with 93 rule applications. Total rules 182 place count 232 transition count 338
Iterating global reduction 1 with 93 rules applied. Total rules applied 275 place count 232 transition count 338
Ensure Unique test removed 4 transitions
Reduce isomorphic transitions removed 4 transitions.
Iterating post reduction 1 with 4 rules applied. Total rules applied 279 place count 232 transition count 334
Discarding 71 places :
Symmetric choice reduction at 2 with 71 rule applications. Total rules 350 place count 161 transition count 263
Iterating global reduction 2 with 71 rules applied. Total rules applied 421 place count 161 transition count 263
Ensure Unique test removed 4 transitions
Reduce isomorphic transitions removed 4 transitions.
Iterating post reduction 2 with 4 rules applied. Total rules applied 425 place count 161 transition count 259
Discarding 38 places :
Symmetric choice reduction at 3 with 38 rule applications. Total rules 463 place count 123 transition count 198
Iterating global reduction 3 with 38 rules applied. Total rules applied 501 place count 123 transition count 198
Ensure Unique test removed 22 transitions
Reduce isomorphic transitions removed 22 transitions.
Iterating post reduction 3 with 22 rules applied. Total rules applied 523 place count 123 transition count 176
Discarding 10 places :
Symmetric choice reduction at 4 with 10 rule applications. Total rules 533 place count 113 transition count 162
Iterating global reduction 4 with 10 rules applied. Total rules applied 543 place count 113 transition count 162
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 4 with 1 rules applied. Total rules applied 544 place count 113 transition count 161
Discarding 7 places :
Symmetric choice reduction at 5 with 7 rule applications. Total rules 551 place count 106 transition count 154
Iterating global reduction 5 with 7 rules applied. Total rules applied 558 place count 106 transition count 154
Ensure Unique test removed 3 transitions
Reduce isomorphic transitions removed 3 transitions.
Iterating post reduction 5 with 3 rules applied. Total rules applied 561 place count 106 transition count 151
Discarding 5 places :
Symmetric choice reduction at 6 with 5 rule applications. Total rules 566 place count 101 transition count 146
Iterating global reduction 6 with 5 rules applied. Total rules applied 571 place count 101 transition count 146
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 6 with 1 rules applied. Total rules applied 572 place count 101 transition count 145
Discarding 1 places :
Symmetric choice reduction at 7 with 1 rule applications. Total rules 573 place count 100 transition count 143
Iterating global reduction 7 with 1 rules applied. Total rules applied 574 place count 100 transition count 143
Applied a total of 574 rules in 221 ms. Remains 100 /347 variables (removed 247) and now considering 143/672 (removed 529) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 240 ms. Remains : 100/347 places, 143/672 transitions.
// Phase 1: matrix 143 rows 100 cols
[2026-05-23 08:41:38] [INFO ] Computed 2 invariants in 2 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0, 0, 0, 0, 1] Max Struct:[7, 8, 7, 8, 10]
RANDOM walk for 1000000 steps (229043 resets) in 2113 ms. (473 steps per ms)
BEST_FIRST walk for 5000003 steps (491331 resets) in 4031 ms. (1240 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0, 0, 1, 0, 2] Max Struct:[7, 8, 7, 8, 10]
[2026-05-23 08:41:44] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-23 08:41:44] [INFO ] [Real]Absence check using 0 positive and 2 generalized place invariants in 3 ms returned sat
[2026-05-23 08:41:44] [INFO ] [Real]Absence check using state equation in 67 ms returned sat
[2026-05-23 08:41:44] [INFO ] State equation strengthened by 52 read => feed constraints.
[2026-05-23 08:41:44] [INFO ] [Real]Added 52 Read/Feed constraints in 12 ms returned sat
[2026-05-23 08:41:44] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-23 08:41:44] [INFO ] [Nat]Absence check using 0 positive and 2 generalized place invariants in 3 ms returned sat
[2026-05-23 08:41:44] [INFO ] [Nat]Absence check using state equation in 58 ms returned sat
[2026-05-23 08:41:44] [INFO ] [Nat]Added 52 Read/Feed constraints in 15 ms returned sat
[2026-05-23 08:41:45] [INFO ] Computed and/alt/rep : 36/90/36 causal constraints (skipped 106 transitions) in 13 ms.
[2026-05-23 08:41:45] [INFO ] Added : 13 causal constraints over 3 iterations in 82 ms. Result :sat
Minimization took 98 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-23 08:41:45] [INFO ] [Real]Absence check using 0 positive and 2 generalized place invariants in 3 ms returned sat
[2026-05-23 08:41:45] [INFO ] [Real]Absence check using state equation in 99 ms returned sat
[2026-05-23 08:41:45] [INFO ] [Real]Added 52 Read/Feed constraints in 14 ms returned sat
[2026-05-23 08:41:45] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-23 08:41:45] [INFO ] [Nat]Absence check using 0 positive and 2 generalized place invariants in 3 ms returned sat
[2026-05-23 08:41:45] [INFO ] [Nat]Absence check using state equation in 69 ms returned sat
[2026-05-23 08:41:45] [INFO ] [Nat]Added 52 Read/Feed constraints in 18 ms returned sat
[2026-05-23 08:41:45] [INFO ] Computed and/alt/rep : 36/90/36 causal constraints (skipped 106 transitions) in 17 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 08:41:45] [INFO ] Deduced a trap composed of 15 places in 113 ms of which 8 ms to minimize.
[2026-05-23 08:41:45] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 150 ms
[2026-05-23 08:41:45] [INFO ] Added : 14 causal constraints over 3 iterations in 265 ms. Result :sat
Minimization took 223 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-23 08:41:46] [INFO ] [Real]Absence check using 0 positive and 2 generalized place invariants in 3 ms returned sat
[2026-05-23 08:41:46] [INFO ] [Real]Absence check using state equation in 51 ms returned unsat
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-23 08:41:46] [INFO ] [Real]Absence check using 0 positive and 2 generalized place invariants in 3 ms returned sat
[2026-05-23 08:41:46] [INFO ] [Real]Absence check using state equation in 85 ms returned sat
[2026-05-23 08:41:46] [INFO ] [Real]Added 52 Read/Feed constraints in 19 ms returned sat
[2026-05-23 08:41:46] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-23 08:41:46] [INFO ] [Nat]Absence check using 0 positive and 2 generalized place invariants in 4 ms returned sat
[2026-05-23 08:41:46] [INFO ] [Nat]Absence check using state equation in 82 ms returned sat
[2026-05-23 08:41:46] [INFO ] [Nat]Added 52 Read/Feed constraints in 21 ms returned sat
[2026-05-23 08:41:46] [INFO ] Computed and/alt/rep : 36/90/36 causal constraints (skipped 106 transitions) in 19 ms.
[2026-05-23 08:41:46] [INFO ] Added : 5 causal constraints over 1 iterations in 67 ms. Result :sat
Minimization took 166 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-23 08:41:46] [INFO ] [Real]Absence check using 0 positive and 2 generalized place invariants in 3 ms returned sat
[2026-05-23 08:41:46] [INFO ] [Real]Absence check using state equation in 86 ms returned sat
[2026-05-23 08:41:46] [INFO ] [Real]Added 52 Read/Feed constraints in 31 ms returned sat
[2026-05-23 08:41:46] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-23 08:41:46] [INFO ] [Nat]Absence check using 0 positive and 2 generalized place invariants in 4 ms returned sat
[2026-05-23 08:41:47] [INFO ] [Nat]Absence check using state equation in 88 ms returned sat
[2026-05-23 08:41:47] [INFO ] [Nat]Added 52 Read/Feed constraints in 16 ms returned sat
[2026-05-23 08:41:47] [INFO ] Computed and/alt/rep : 36/90/36 causal constraints (skipped 106 transitions) in 18 ms.
[2026-05-23 08:41:47] [INFO ] Added : 2 causal constraints over 1 iterations in 74 ms. Result :sat
Minimization took 151 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0, 0, 1, 0, 2] Max Struct:[7, 8, 1, 8, 10]
FORMULA DBSingleClientW-PT-d1m08-UpperBounds-06 1 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0, 0, 0, 2] Max Struct:[7, 8, 8, 10]
Support contains 4 out of 100 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 100/100 places, 143/143 transitions.
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 1 place count 99 transition count 142
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 99 transition count 142
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 3 place count 98 transition count 140
Iterating global reduction 0 with 1 rules applied. Total rules applied 4 place count 98 transition count 140
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 5 place count 98 transition count 139
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 6 place count 97 transition count 138
Iterating global reduction 1 with 1 rules applied. Total rules applied 7 place count 97 transition count 138
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 8 place count 96 transition count 137
Iterating global reduction 1 with 1 rules applied. Total rules applied 9 place count 96 transition count 137
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 1 with 2 rules applied. Total rules applied 11 place count 96 transition count 135
Applied a total of 11 rules in 36 ms. Remains 96 /100 variables (removed 4) and now considering 135/143 (removed 8) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 37 ms. Remains : 96/100 places, 135/143 transitions.
// Phase 1: matrix 135 rows 96 cols
[2026-05-23 08:41:47] [INFO ] Computed 2 invariants in 2 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0, 0, 0, 2] Max Struct:[7, 8, 8, 10]
RANDOM walk for 1000000 steps (229492 resets) in 1906 ms. (524 steps per ms)
BEST_FIRST walk for 4000002 steps (394156 resets) in 3350 ms. (1193 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0, 1, 0, 2] Max Struct:[7, 8, 8, 10]
[2026-05-23 08:41:52] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-23 08:41:52] [INFO ] [Real]Absence check using 0 positive and 2 generalized place invariants in 3 ms returned sat
[2026-05-23 08:41:52] [INFO ] [Real]Absence check using state equation in 64 ms returned sat
[2026-05-23 08:41:52] [INFO ] State equation strengthened by 50 read => feed constraints.
[2026-05-23 08:41:52] [INFO ] [Real]Added 50 Read/Feed constraints in 17 ms returned sat
[2026-05-23 08:41:53] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-23 08:41:53] [INFO ] [Nat]Absence check using 0 positive and 2 generalized place invariants in 2 ms returned sat
[2026-05-23 08:41:53] [INFO ] [Nat]Absence check using state equation in 56 ms returned sat
[2026-05-23 08:41:53] [INFO ] [Nat]Added 50 Read/Feed constraints in 26 ms returned sat
[2026-05-23 08:41:53] [INFO ] Computed and/alt/rep : 34/81/34 causal constraints (skipped 100 transitions) in 18 ms.
[2026-05-23 08:41:53] [INFO ] Added : 9 causal constraints over 2 iterations in 86 ms. Result :sat
Minimization took 118 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-23 08:41:53] [INFO ] [Real]Absence check using 0 positive and 2 generalized place invariants in 3 ms returned sat
[2026-05-23 08:41:53] [INFO ] [Real]Absence check using state equation in 92 ms returned sat
[2026-05-23 08:41:53] [INFO ] [Real]Added 50 Read/Feed constraints in 20 ms returned sat
[2026-05-23 08:41:53] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-23 08:41:53] [INFO ] [Nat]Absence check using 0 positive and 2 generalized place invariants in 4 ms returned sat
[2026-05-23 08:41:53] [INFO ] [Nat]Absence check using state equation in 91 ms returned sat
[2026-05-23 08:41:53] [INFO ] [Nat]Added 50 Read/Feed constraints in 20 ms returned sat
[2026-05-23 08:41:53] [INFO ] Computed and/alt/rep : 34/81/34 causal constraints (skipped 100 transitions) in 20 ms.
[2026-05-23 08:41:53] [INFO ] Added : 9 causal constraints over 2 iterations in 86 ms. Result :sat
Minimization took 154 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-23 08:41:54] [INFO ] [Real]Absence check using 0 positive and 2 generalized place invariants in 3 ms returned sat
[2026-05-23 08:41:54] [INFO ] [Real]Absence check using state equation in 80 ms returned sat
[2026-05-23 08:41:54] [INFO ] [Real]Added 50 Read/Feed constraints in 17 ms returned sat
[2026-05-23 08:41:54] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-23 08:41:54] [INFO ] [Nat]Absence check using 0 positive and 2 generalized place invariants in 3 ms returned sat
[2026-05-23 08:41:54] [INFO ] [Nat]Absence check using state equation in 93 ms returned sat
[2026-05-23 08:41:54] [INFO ] [Nat]Added 50 Read/Feed constraints in 18 ms returned sat
[2026-05-23 08:41:54] [INFO ] Computed and/alt/rep : 34/81/34 causal constraints (skipped 100 transitions) in 19 ms.
[2026-05-23 08:41:54] [INFO ] Added : 7 causal constraints over 2 iterations in 82 ms. Result :sat
Minimization took 195 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-23 08:41:54] [INFO ] [Real]Absence check using 0 positive and 2 generalized place invariants in 3 ms returned sat
[2026-05-23 08:41:54] [INFO ] [Real]Absence check using state equation in 84 ms returned sat
[2026-05-23 08:41:54] [INFO ] [Real]Added 50 Read/Feed constraints in 24 ms returned sat
[2026-05-23 08:41:54] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-23 08:41:54] [INFO ] [Nat]Absence check using 0 positive and 2 generalized place invariants in 4 ms returned sat
[2026-05-23 08:41:54] [INFO ] [Nat]Absence check using state equation in 83 ms returned sat
[2026-05-23 08:41:54] [INFO ] [Nat]Added 50 Read/Feed constraints in 16 ms returned sat
[2026-05-23 08:41:54] [INFO ] Computed and/alt/rep : 34/81/34 causal constraints (skipped 100 transitions) in 18 ms.
[2026-05-23 08:41:55] [INFO ] Added : 2 causal constraints over 1 iterations in 71 ms. Result :sat
Minimization took 136 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0, 1, 0, 2] Max Struct:[7, 8, 8, 10]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0, 1, 0, 2] Max Struct:[7, 8, 8, 10]
Support contains 4 out of 96 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 96/96 places, 135/135 transitions.
Applied a total of 0 rules in 18 ms. Remains 96 /96 variables (removed 0) and now considering 135/135 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 18 ms. Remains : 96/96 places, 135/135 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 96/96 places, 135/135 transitions.
Applied a total of 0 rules in 16 ms. Remains 96 /96 variables (removed 0) and now considering 135/135 (removed 0) transitions.
[2026-05-23 08:41:55] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-23 08:41:55] [INFO ] Implicit Places using invariants in 208 ms returned []
[2026-05-23 08:41:55] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-23 08:41:55] [INFO ] State equation strengthened by 50 read => feed constraints.
[2026-05-23 08:41:56] [INFO ] Implicit Places using invariants and state equation in 519 ms returned []
Implicit Place search using SMT with State Equation took 732 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-23 08:41:56] [INFO ] Redundant transitions in 6 ms returned []
Running 134 sub problems to find dead transitions.
[2026-05-23 08:41:56] [INFO ] Invariant cache hit.
[2026-05-23 08:41:56] [INFO ] State equation strengthened by 50 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/95 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 134 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/95 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 134 unsolved
At refinement iteration 2 (OVERLAPS) 1/96 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 134 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/96 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 134 unsolved
At refinement iteration 4 (OVERLAPS) 135/231 variables, 96/98 constraints. Problems are: Problem set: 0 solved, 134 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/231 variables, 50/148 constraints. Problems are: Problem set: 0 solved, 134 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/231 variables, 0/148 constraints. Problems are: Problem set: 0 solved, 134 unsolved
At refinement iteration 7 (OVERLAPS) 0/231 variables, 0/148 constraints. Problems are: Problem set: 0 solved, 134 unsolved
No progress, stopping.
After SMT solving in domain Real declared 231/231 variables, and 148 constraints, problems are : Problem set: 0 solved, 134 unsolved in 8766 ms.
Refiners :[Generalized P Invariants (flows): 2/2 constraints, State Equation: 96/96 constraints, ReadFeed: 50/50 constraints, PredecessorRefiner: 134/134 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 134 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/95 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 134 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/95 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 134 unsolved
At refinement iteration 2 (OVERLAPS) 1/96 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 134 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/96 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 134 unsolved
At refinement iteration 4 (OVERLAPS) 135/231 variables, 96/98 constraints. Problems are: Problem set: 0 solved, 134 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/231 variables, 50/148 constraints. Problems are: Problem set: 0 solved, 134 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/231 variables, 134/282 constraints. Problems are: Problem set: 0 solved, 134 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/231 variables, 0/282 constraints. Problems are: Problem set: 0 solved, 134 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 231/231 variables, and 282 constraints, problems are : Problem set: 0 solved, 134 unsolved in 30024 ms.
Refiners :[Generalized P Invariants (flows): 2/2 constraints, State Equation: 96/96 constraints, ReadFeed: 50/50 constraints, PredecessorRefiner: 134/134 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 39168ms problems are : Problem set: 0 solved, 134 unsolved
Search for dead transitions found 0 dead transitions in 39182ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 39967 ms. Remains : 96/96 places, 135/135 transitions.
[2026-05-23 08:42:35] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[0, 1, 0, 2] Max Struct:[7, 8, 8, 10]
RANDOM walk for 1000000 steps (229145 resets) in 1506 ms. (663 steps per ms)
BEST_FIRST walk for 4000003 steps (394460 resets) in 2800 ms. (1428 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0, 1, 0, 2] Max Struct:[7, 8, 8, 10]
[2026-05-23 08:42:39] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-23 08:42:39] [INFO ] [Real]Absence check using 0 positive and 2 generalized place invariants in 2 ms returned sat
[2026-05-23 08:42:39] [INFO ] [Real]Absence check using state equation in 60 ms returned sat
[2026-05-23 08:42:39] [INFO ] State equation strengthened by 50 read => feed constraints.
[2026-05-23 08:42:39] [INFO ] [Real]Added 50 Read/Feed constraints in 13 ms returned sat
[2026-05-23 08:42:39] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-23 08:42:39] [INFO ] [Nat]Absence check using 0 positive and 2 generalized place invariants in 3 ms returned sat
[2026-05-23 08:42:39] [INFO ] [Nat]Absence check using state equation in 69 ms returned sat
[2026-05-23 08:42:39] [INFO ] [Nat]Added 50 Read/Feed constraints in 23 ms returned sat
[2026-05-23 08:42:39] [INFO ] Computed and/alt/rep : 34/81/34 causal constraints (skipped 100 transitions) in 14 ms.
[2026-05-23 08:42:39] [INFO ] Added : 9 causal constraints over 2 iterations in 67 ms. Result :sat
Minimization took 101 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-23 08:42:40] [INFO ] [Real]Absence check using 0 positive and 2 generalized place invariants in 4 ms returned sat
[2026-05-23 08:42:40] [INFO ] [Real]Absence check using state equation in 80 ms returned sat
[2026-05-23 08:42:40] [INFO ] [Real]Added 50 Read/Feed constraints in 19 ms returned sat
[2026-05-23 08:42:40] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-23 08:42:40] [INFO ] [Nat]Absence check using 0 positive and 2 generalized place invariants in 3 ms returned sat
[2026-05-23 08:42:40] [INFO ] [Nat]Absence check using state equation in 91 ms returned sat
[2026-05-23 08:42:40] [INFO ] [Nat]Added 50 Read/Feed constraints in 16 ms returned sat
[2026-05-23 08:42:40] [INFO ] Computed and/alt/rep : 34/81/34 causal constraints (skipped 100 transitions) in 18 ms.
[2026-05-23 08:42:40] [INFO ] Added : 9 causal constraints over 2 iterations in 76 ms. Result :sat
Minimization took 128 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-23 08:42:40] [INFO ] [Real]Absence check using 0 positive and 2 generalized place invariants in 3 ms returned sat
[2026-05-23 08:42:40] [INFO ] [Real]Absence check using state equation in 81 ms returned sat
[2026-05-23 08:42:40] [INFO ] [Real]Added 50 Read/Feed constraints in 13 ms returned sat
[2026-05-23 08:42:40] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-23 08:42:40] [INFO ] [Nat]Absence check using 0 positive and 2 generalized place invariants in 3 ms returned sat
[2026-05-23 08:42:40] [INFO ] [Nat]Absence check using state equation in 85 ms returned sat
[2026-05-23 08:42:40] [INFO ] [Nat]Added 50 Read/Feed constraints in 19 ms returned sat
[2026-05-23 08:42:40] [INFO ] Computed and/alt/rep : 34/81/34 causal constraints (skipped 100 transitions) in 14 ms.
[2026-05-23 08:42:40] [INFO ] Added : 7 causal constraints over 2 iterations in 69 ms. Result :sat
Minimization took 143 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-23 08:42:41] [INFO ] [Real]Absence check using 0 positive and 2 generalized place invariants in 3 ms returned sat
[2026-05-23 08:42:41] [INFO ] [Real]Absence check using state equation in 76 ms returned sat
[2026-05-23 08:42:41] [INFO ] [Real]Added 50 Read/Feed constraints in 21 ms returned sat
[2026-05-23 08:42:41] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-23 08:42:41] [INFO ] [Nat]Absence check using 0 positive and 2 generalized place invariants in 3 ms returned sat
[2026-05-23 08:42:41] [INFO ] [Nat]Absence check using state equation in 80 ms returned sat
[2026-05-23 08:42:41] [INFO ] [Nat]Added 50 Read/Feed constraints in 17 ms returned sat
[2026-05-23 08:42:41] [INFO ] Computed and/alt/rep : 34/81/34 causal constraints (skipped 100 transitions) in 16 ms.
[2026-05-23 08:42:41] [INFO ] Added : 2 causal constraints over 1 iterations in 63 ms. Result :sat
Minimization took 130 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0, 1, 0, 2] Max Struct:[7, 8, 8, 10]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0, 1, 0, 2] Max Struct:[7, 8, 8, 10]
Support contains 4 out of 96 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 96/96 places, 135/135 transitions.
Applied a total of 0 rules in 8 ms. Remains 96 /96 variables (removed 0) and now considering 135/135 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 8 ms. Remains : 96/96 places, 135/135 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 96/96 places, 135/135 transitions.
Applied a total of 0 rules in 6 ms. Remains 96 /96 variables (removed 0) and now considering 135/135 (removed 0) transitions.
[2026-05-23 08:42:41] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-23 08:42:41] [INFO ] Implicit Places using invariants in 165 ms returned []
[2026-05-23 08:42:41] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-23 08:42:41] [INFO ] State equation strengthened by 50 read => feed constraints.
[2026-05-23 08:42:42] [INFO ] Implicit Places using invariants and state equation in 484 ms returned []
Implicit Place search using SMT with State Equation took 651 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-23 08:42:42] [INFO ] Redundant transitions in 5 ms returned []
Running 134 sub problems to find dead transitions.
[2026-05-23 08:42:42] [INFO ] Invariant cache hit.
[2026-05-23 08:42:42] [INFO ] State equation strengthened by 50 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/95 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 134 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/95 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 134 unsolved
At refinement iteration 2 (OVERLAPS) 1/96 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 134 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/96 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 134 unsolved
At refinement iteration 4 (OVERLAPS) 135/231 variables, 96/98 constraints. Problems are: Problem set: 0 solved, 134 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/231 variables, 50/148 constraints. Problems are: Problem set: 0 solved, 134 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/231 variables, 0/148 constraints. Problems are: Problem set: 0 solved, 134 unsolved
At refinement iteration 7 (OVERLAPS) 0/231 variables, 0/148 constraints. Problems are: Problem set: 0 solved, 134 unsolved
No progress, stopping.
After SMT solving in domain Real declared 231/231 variables, and 148 constraints, problems are : Problem set: 0 solved, 134 unsolved in 7449 ms.
Refiners :[Generalized P Invariants (flows): 2/2 constraints, State Equation: 96/96 constraints, ReadFeed: 50/50 constraints, PredecessorRefiner: 134/134 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 134 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/95 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 134 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/95 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 134 unsolved
At refinement iteration 2 (OVERLAPS) 1/96 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 134 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/96 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 134 unsolved
At refinement iteration 4 (OVERLAPS) 135/231 variables, 96/98 constraints. Problems are: Problem set: 0 solved, 134 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/231 variables, 50/148 constraints. Problems are: Problem set: 0 solved, 134 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/231 variables, 134/282 constraints. Problems are: Problem set: 0 solved, 134 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/231 variables, 0/282 constraints. Problems are: Problem set: 0 solved, 134 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 231/231 variables, and 282 constraints, problems are : Problem set: 0 solved, 134 unsolved in 30018 ms.
Refiners :[Generalized P Invariants (flows): 2/2 constraints, State Equation: 96/96 constraints, ReadFeed: 50/50 constraints, PredecessorRefiner: 134/134 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 37655ms problems are : Problem set: 0 solved, 134 unsolved
Search for dead transitions found 0 dead transitions in 37657ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 38328 ms. Remains : 96/96 places, 135/135 transitions.
RANDOM walk for 40000 steps (9199 resets) in 2176 ms. (18 steps per ms) remains 8/8 properties
[2026-05-23 08:43:20] [INFO ] Flatten gal took : 135 ms
[2026-05-23 08:43:20] [INFO ] Flatten gal took : 28 ms
[2026-05-23 08:43:20] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality15201299439886593276.gal : 22 ms
[2026-05-23 08:43:20] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality732017852585911839.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/ReachabilityCardinality15201299439886593276.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality732017852585911839.prop' '--nowitness' '--gen-order' 'FOLLOW'
BEST_FIRST walk for 40003 steps (3849 resets) in 901 ms. (44 steps per ms) remains 8/8 properties

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...328
Loading property file /tmp/ReachabilityCardinality732017852585911839.prop.
SDD proceeding with computation,8 properties remain. new max is 4
SDD size :1 after 7
SDD proceeding with computation,8 properties remain. new max is 8
SDD size :7 after 26
SDD proceeding with computation,8 properties remain. new max is 16
SDD size :26 after 58
SDD proceeding with computation,8 properties remain. new max is 32
SDD size :58 after 90
SDD proceeding with computation,8 properties remain. new max is 64
SDD size :90 after 154
BEST_FIRST walk for 40003 steps (3942 resets) in 529 ms. (75 steps per ms) remains 8/8 properties
SDD proceeding with computation,8 properties remain. new max is 128
SDD size :154 after 248
SDD proceeding with computation,8 properties remain. new max is 256
SDD size :248 after 446
BEST_FIRST walk for 40002 steps (3981 resets) in 335 ms. (119 steps per ms) remains 8/8 properties
SDD proceeding with computation,8 properties remain. new max is 512
SDD size :446 after 794
BEST_FIRST walk for 40001 steps (4018 resets) in 301 ms. (132 steps per ms) remains 8/8 properties
BEST_FIRST walk for 40003 steps (3913 resets) in 251 ms. (158 steps per ms) remains 8/8 properties
SDD proceeding with computation,8 properties remain. new max is 1024
SDD size :794 after 4111
BEST_FIRST walk for 40002 steps (3872 resets) in 222 ms. (179 steps per ms) remains 8/8 properties
BEST_FIRST walk for 40002 steps (3919 resets) in 201 ms. (198 steps per ms) remains 8/8 properties
BEST_FIRST walk for 40004 steps (3901 resets) in 256 ms. (155 steps per ms) remains 8/8 properties
SDD proceeding with computation,8 properties remain. new max is 2048
SDD size :4111 after 14138
Invariant property MIN3 does not hold.
SDD proceeding with computation,7 properties remain. new max is 2048
SDD size :14138 after 62752
SDD proceeding with computation,7 properties remain. new max is 4096
SDD size :62752 after 148691
SDD proceeding with computation,7 properties remain. new max is 8192
SDD size :148691 after 948801
Interrupted probabilistic random walk after 468644 steps, run timeout after 3001 ms. (steps per millisecond=156 ) properties seen :3 out of 8
Probabilistic random walk after 468644 steps, saw 178228 distinct states, run finished after 3007 ms. (steps per millisecond=155 ) properties seen :3
[2026-05-23 08:43:24] [INFO ] Invariant cache hit.
[2026-05-23 08:43:24] [INFO ] State equation strengthened by 50 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) 58/62 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/62 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 3 (OVERLAPS) 7/69 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/69 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 5 (OVERLAPS) 104/173 variables, 69/71 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/173 variables, 0/71 constraints. Problems are: Problem set: 0 solved, 4 unsolved
Problem MAX0 is UNSAT
Problem MAX3 is UNSAT
At refinement iteration 7 (OVERLAPS) 49/222 variables, 22/93 constraints. Problems are: Problem set: 2 solved, 2 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/222 variables, 46/139 constraints. Problems are: Problem set: 2 solved, 2 unsolved
All remaining problems are real, not stopping.
At refinement iteration 9 (INCLUDED_ONLY) 0/222 variables, 0/139 constraints. Problems are: Problem set: 2 solved, 2 unsolved
At refinement iteration 10 (OVERLAPS) 9/231 variables, 5/144 constraints. Problems are: Problem set: 2 solved, 2 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/231 variables, 4/148 constraints. Problems are: Problem set: 2 solved, 2 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 08:43:25] [INFO ] Deduced a trap composed of 13 places in 79 ms of which 3 ms to minimize.
Problem MAX1 is UNSAT
Problem MAX2 is UNSAT
After SMT solving in domain Real declared 231/231 variables, and 149 constraints, problems are : Problem set: 4 solved, 0 unsolved in 463 ms.
Refiners :[Generalized P Invariants (flows): 2/2 constraints, State Equation: 96/96 constraints, ReadFeed: 50/50 constraints, PredecessorRefiner: 4/4 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 470ms problems are : Problem set: 4 solved, 0 unsolved
Skipping Parikh replay, no witness traces provided.
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, 1, 0, 2] Max Struct:[7, 8, 8, 10]
Starting property specific reduction for DBSingleClientW-PT-d1m08-UpperBounds-01
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:[7]
Current structural bounds on expressions (Before main loop) : Max Seen:[0] Max Struct:[7]
[2026-05-23 08:43:25] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[7]
RANDOM walk for 10000 steps (2284 resets) in 23 ms. (416 steps per ms)
BEST_FIRST walk for 10001 steps (989 resets) in 12 ms. (769 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0] Max Struct:[7]
[2026-05-23 08:43:25] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 08:43:25] [INFO ] [Real]Absence check using 0 positive and 2 generalized place invariants in 3 ms returned sat
[2026-05-23 08:43:25] [INFO ] [Real]Absence check using state equation in 77 ms returned sat
[2026-05-23 08:43:25] [INFO ] State equation strengthened by 50 read => feed constraints.
[2026-05-23 08:43:25] [INFO ] [Real]Added 50 Read/Feed constraints in 21 ms returned sat
[2026-05-23 08:43:25] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 08:43:25] [INFO ] [Nat]Absence check using 0 positive and 2 generalized place invariants in 5 ms returned sat
[2026-05-23 08:43:25] [INFO ] [Nat]Absence check using state equation in 81 ms returned sat
[2026-05-23 08:43:25] [INFO ] [Nat]Added 50 Read/Feed constraints in 25 ms returned sat
[2026-05-23 08:43:25] [INFO ] Computed and/alt/rep : 34/81/34 causal constraints (skipped 100 transitions) in 17 ms.
[2026-05-23 08:43:25] [INFO ] Added : 9 causal constraints over 2 iterations in 84 ms. Result :sat
Minimization took 99 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0] Max Struct:[7]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0] Max Struct:[7]
Support contains 1 out of 96 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 96/96 places, 135/135 transitions.
Discarding 2 places :
Symmetric choice reduction at 0 with 2 rule applications. Total rules 2 place count 94 transition count 125
Iterating global reduction 0 with 2 rules applied. Total rules applied 4 place count 94 transition count 125
Discarding 2 places :
Symmetric choice reduction at 0 with 2 rule applications. Total rules 6 place count 92 transition count 123
Iterating global reduction 0 with 2 rules applied. Total rules applied 8 place count 92 transition count 123
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 0 with 2 rules applied. Total rules applied 10 place count 92 transition count 121
Discarding 3 places :
Symmetric choice reduction at 1 with 3 rule applications. Total rules 13 place count 89 transition count 117
Iterating global reduction 1 with 3 rules applied. Total rules applied 16 place count 89 transition count 117
Discarding 2 places :
Symmetric choice reduction at 1 with 2 rule applications. Total rules 18 place count 87 transition count 112
Iterating global reduction 1 with 2 rules applied. Total rules applied 20 place count 87 transition count 112
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 1 with 1 rules applied. Total rules applied 21 place count 87 transition count 111
Discarding 1 places :
Symmetric choice reduction at 2 with 1 rule applications. Total rules 22 place count 86 transition count 110
Iterating global reduction 2 with 1 rules applied. Total rules applied 23 place count 86 transition count 110
Discarding 1 places :
Symmetric choice reduction at 2 with 1 rule applications. Total rules 24 place count 85 transition count 109
Iterating global reduction 2 with 1 rules applied. Total rules applied 25 place count 85 transition count 109
Applied a total of 25 rules in 38 ms. Remains 85 /96 variables (removed 11) and now considering 109/135 (removed 26) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 43 ms. Remains : 85/96 places, 109/135 transitions.
// Phase 1: matrix 109 rows 85 cols
[2026-05-23 08:43:25] [INFO ] Computed 2 invariants in 2 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[7]
RANDOM walk for 1000000 steps (229436 resets) in 1806 ms. (553 steps per ms)
BEST_FIRST walk for 1000000 steps (99082 resets) in 586 ms. (1703 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0] Max Struct:[7]
[2026-05-23 08:43:28] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-23 08:43:28] [INFO ] [Real]Absence check using 0 positive and 2 generalized place invariants in 2 ms returned sat
[2026-05-23 08:43:28] [INFO ] [Real]Absence check using state equation in 45 ms returned sat
[2026-05-23 08:43:28] [INFO ] State equation strengthened by 36 read => feed constraints.
[2026-05-23 08:43:28] [INFO ] [Real]Added 36 Read/Feed constraints in 9 ms returned sat
[2026-05-23 08:43:28] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-23 08:43:28] [INFO ] [Nat]Absence check using 0 positive and 2 generalized place invariants in 2 ms returned sat
[2026-05-23 08:43:28] [INFO ] [Nat]Absence check using state equation in 46 ms returned sat
[2026-05-23 08:43:28] [INFO ] [Nat]Added 36 Read/Feed constraints in 12 ms returned sat
[2026-05-23 08:43:28] [INFO ] Computed and/alt/rep : 30/65/30 causal constraints (skipped 78 transitions) in 9 ms.
[2026-05-23 08:43:28] [INFO ] Added : 9 causal constraints over 2 iterations in 44 ms. Result :sat
Minimization took 48 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0] Max Struct:[7]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0] Max Struct:[7]
Support contains 1 out of 85 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 85/85 places, 109/109 transitions.
Applied a total of 0 rules in 5 ms. Remains 85 /85 variables (removed 0) and now considering 109/109 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 5 ms. Remains : 85/85 places, 109/109 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 85/85 places, 109/109 transitions.
Applied a total of 0 rules in 4 ms. Remains 85 /85 variables (removed 0) and now considering 109/109 (removed 0) transitions.
[2026-05-23 08:43:28] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-23 08:43:28] [INFO ] Implicit Places using invariants in 90 ms returned []
[2026-05-23 08:43:28] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-23 08:43:28] [INFO ] State equation strengthened by 36 read => feed constraints.
[2026-05-23 08:43:29] [INFO ] Implicit Places using invariants and state equation in 422 ms returned []
Implicit Place search using SMT with State Equation took 514 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-23 08:43:29] [INFO ] Redundant transitions in 5 ms returned []
Running 108 sub problems to find dead transitions.
[2026-05-23 08:43:29] [INFO ] Invariant cache hit.
[2026-05-23 08:43:29] [INFO ] State equation strengthened by 36 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/84 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 108 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/84 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 108 unsolved
At refinement iteration 2 (OVERLAPS) 1/85 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 108 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/85 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 108 unsolved
At refinement iteration 4 (OVERLAPS) 109/194 variables, 85/87 constraints. Problems are: Problem set: 0 solved, 108 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/194 variables, 36/123 constraints. Problems are: Problem set: 0 solved, 108 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/194 variables, 0/123 constraints. Problems are: Problem set: 0 solved, 108 unsolved
At refinement iteration 7 (OVERLAPS) 0/194 variables, 0/123 constraints. Problems are: Problem set: 0 solved, 108 unsolved
No progress, stopping.
After SMT solving in domain Real declared 194/194 variables, and 123 constraints, problems are : Problem set: 0 solved, 108 unsolved in 4801 ms.
Refiners :[Generalized P Invariants (flows): 2/2 constraints, State Equation: 85/85 constraints, ReadFeed: 36/36 constraints, PredecessorRefiner: 108/108 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 108 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/84 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 108 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/84 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 108 unsolved
At refinement iteration 2 (OVERLAPS) 1/85 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 108 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/85 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 108 unsolved
At refinement iteration 4 (OVERLAPS) 109/194 variables, 85/87 constraints. Problems are: Problem set: 0 solved, 108 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/194 variables, 36/123 constraints. Problems are: Problem set: 0 solved, 108 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/194 variables, 108/231 constraints. Problems are: Problem set: 0 solved, 108 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/194 variables, 0/231 constraints. Problems are: Problem set: 0 solved, 108 unsolved
At refinement iteration 8 (OVERLAPS) 0/194 variables, 0/231 constraints. Problems are: Problem set: 0 solved, 108 unsolved
No progress, stopping.
After SMT solving in domain Int declared 194/194 variables, and 231 constraints, problems are : Problem set: 0 solved, 108 unsolved in 30008 ms.
Refiners :[Generalized P Invariants (flows): 2/2 constraints, State Equation: 85/85 constraints, ReadFeed: 36/36 constraints, PredecessorRefiner: 108/108 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 34932ms problems are : Problem set: 0 solved, 108 unsolved
Search for dead transitions found 0 dead transitions in 34935ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 35467 ms. Remains : 85/85 places, 109/109 transitions.
[2026-05-23 08:44:04] [INFO ] Flatten gal took : 43 ms
[2026-05-23 08:44:04] [INFO ] Flatten gal took : 18 ms
[2026-05-23 08:44:04] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality17756957610989760405.gal : 6 ms
[2026-05-23 08:44:04] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality15323482830584052769.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/ReachabilityCardinality17756957610989760405.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality15323482830584052769.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...330
RANDOM walk for 40000 steps (9118 resets) in 214 ms. (186 steps per ms) remains 2/2 properties
Loading property file /tmp/ReachabilityCardinality15323482830584052769.prop.
BEST_FIRST walk for 40003 steps (4024 resets) in 181 ms. (219 steps per ms) remains 2/2 properties
SDD proceeding with computation,2 properties remain. new max is 4
SDD size :1 after 7
SDD proceeding with computation,2 properties remain. new max is 8
SDD size :7 after 26
SDD proceeding with computation,2 properties remain. new max is 16
SDD size :26 after 90
SDD proceeding with computation,2 properties remain. new max is 32
SDD size :90 after 184
SDD proceeding with computation,2 properties remain. new max is 64
SDD size :184 after 422
BEST_FIRST walk for 40002 steps (3961 resets) in 105 ms. (377 steps per ms) remains 2/2 properties
SDD proceeding with computation,2 properties remain. new max is 128
SDD size :422 after 848
SDD proceeding with computation,2 properties remain. new max is 256
SDD size :848 after 2490
SDD proceeding with computation,2 properties remain. new max is 512
SDD size :2490 after 10021
SDD proceeding with computation,2 properties remain. new max is 1024
SDD size :10021 after 18316
SDD proceeding with computation,2 properties remain. new max is 2048
SDD size :18316 after 45116
SDD proceeding with computation,2 properties remain. new max is 4096
SDD size :45116 after 174196
SDD proceeding with computation,2 properties remain. new max is 8192
SDD size :174196 after 411864
Invariant property MIN0 does not hold.
SDD proceeding with computation,1 properties remain. new max is 8192
SDD size :411864 after 1.64356e+06
SDD proceeding with computation,1 properties remain. new max is 16384
SDD size :1.64356e+06 after 1.91354e+06
Interrupted probabilistic random walk after 2383598 steps, run timeout after 3001 ms. (steps per millisecond=794 ) properties seen :1 out of 2
Probabilistic random walk after 2383598 steps, saw 938773 distinct states, run finished after 3001 ms. (steps per millisecond=794 ) properties seen :1
[2026-05-23 08:44:07] [INFO ] Invariant cache hit.
[2026-05-23 08:44:07] [INFO ] State equation strengthened by 36 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) 52/53 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/53 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 7/60 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/60 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 78/138 variables, 60/62 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/138 variables, 0/62 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Problem MAX0 is UNSAT
After SMT solving in domain Real declared 185/194 variables, and 82 constraints, problems are : Problem set: 1 solved, 0 unsolved in 104 ms.
Refiners :[Generalized P Invariants (flows): 2/2 constraints, State Equation: 80/85 constraints, ReadFeed: 0/36 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 110ms problems are : Problem set: 1 solved, 0 unsolved
Skipping Parikh replay, no witness traces provided.
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:[7]
Ending property specific reduction for DBSingleClientW-PT-d1m08-UpperBounds-01 in 42205 ms.
Starting property specific reduction for DBSingleClientW-PT-d1m08-UpperBounds-04
Current structural bounds on expressions (Initially) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (Adding known information on max bounds.) : Max Seen:[0] Max Struct:[8]
Current structural bounds on expressions (Before main loop) : Max Seen:[0] Max Struct:[8]
// Phase 1: matrix 135 rows 96 cols
[2026-05-23 08:44:07] [INFO ] Computed 2 invariants in 1 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[8]
RANDOM walk for 10000 steps (2333 resets) in 17 ms. (555 steps per ms)
BEST_FIRST walk for 10001 steps (1001 resets) in 9 ms. (1000 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0] Max Struct:[8]
[2026-05-23 08:44:07] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 08:44:07] [INFO ] [Real]Absence check using 0 positive and 2 generalized place invariants in 2 ms returned sat
[2026-05-23 08:44:07] [INFO ] [Real]Absence check using state equation in 58 ms returned sat
[2026-05-23 08:44:07] [INFO ] State equation strengthened by 50 read => feed constraints.
[2026-05-23 08:44:07] [INFO ] [Real]Added 50 Read/Feed constraints in 9 ms returned sat
[2026-05-23 08:44:07] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 08:44:07] [INFO ] [Nat]Absence check using 0 positive and 2 generalized place invariants in 2 ms returned sat
[2026-05-23 08:44:07] [INFO ] [Nat]Absence check using state equation in 55 ms returned sat
[2026-05-23 08:44:07] [INFO ] [Nat]Added 50 Read/Feed constraints in 12 ms returned sat
[2026-05-23 08:44:07] [INFO ] Computed and/alt/rep : 34/81/34 causal constraints (skipped 100 transitions) in 10 ms.
[2026-05-23 08:44:07] [INFO ] Added : 9 causal constraints over 3 iterations in 59 ms. Result :sat
Minimization took 92 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0] Max Struct:[8]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0] Max Struct:[8]
Support contains 1 out of 96 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 96/96 places, 135/135 transitions.
Discarding 2 places :
Symmetric choice reduction at 0 with 2 rule applications. Total rules 2 place count 94 transition count 129
Iterating global reduction 0 with 2 rules applied. Total rules applied 4 place count 94 transition count 129
Discarding 2 places :
Symmetric choice reduction at 0 with 2 rule applications. Total rules 6 place count 92 transition count 126
Iterating global reduction 0 with 2 rules applied. Total rules applied 8 place count 92 transition count 126
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 9 place count 92 transition count 125
Discarding 3 places :
Symmetric choice reduction at 1 with 3 rule applications. Total rules 12 place count 89 transition count 117
Iterating global reduction 1 with 3 rules applied. Total rules applied 15 place count 89 transition count 117
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 16 place count 88 transition count 113
Iterating global reduction 1 with 1 rules applied. Total rules applied 17 place count 88 transition count 113
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 18 place count 87 transition count 112
Iterating global reduction 1 with 1 rules applied. Total rules applied 19 place count 87 transition count 112
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 20 place count 86 transition count 111
Iterating global reduction 1 with 1 rules applied. Total rules applied 21 place count 86 transition count 111
Applied a total of 21 rules in 22 ms. Remains 86 /96 variables (removed 10) and now considering 111/135 (removed 24) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 22 ms. Remains : 86/96 places, 111/135 transitions.
// Phase 1: matrix 111 rows 86 cols
[2026-05-23 08:44:07] [INFO ] Computed 2 invariants in 1 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[8]
RANDOM walk for 1000000 steps (229285 resets) in 1420 ms. (703 steps per ms)
BEST_FIRST walk for 1000001 steps (98668 resets) in 586 ms. (1703 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0] Max Struct:[8]
[2026-05-23 08:44:09] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-23 08:44:09] [INFO ] [Real]Absence check using 0 positive and 2 generalized place invariants in 3 ms returned sat
[2026-05-23 08:44:09] [INFO ] [Real]Absence check using state equation in 58 ms returned sat
[2026-05-23 08:44:09] [INFO ] State equation strengthened by 36 read => feed constraints.
[2026-05-23 08:44:09] [INFO ] [Real]Added 36 Read/Feed constraints in 10 ms returned sat
[2026-05-23 08:44:09] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-23 08:44:09] [INFO ] [Nat]Absence check using 0 positive and 2 generalized place invariants in 3 ms returned sat
[2026-05-23 08:44:09] [INFO ] [Nat]Absence check using state equation in 58 ms returned sat
[2026-05-23 08:44:10] [INFO ] [Nat]Added 36 Read/Feed constraints in 11 ms returned sat
[2026-05-23 08:44:10] [INFO ] Computed and/alt/rep : 30/69/30 causal constraints (skipped 80 transitions) in 12 ms.
[2026-05-23 08:44:10] [INFO ] Added : 9 causal constraints over 3 iterations in 69 ms. Result :sat
Minimization took 78 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0] Max Struct:[8]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0] Max Struct:[8]
Support contains 1 out of 86 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 86/86 places, 111/111 transitions.
Applied a total of 0 rules in 7 ms. Remains 86 /86 variables (removed 0) and now considering 111/111 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 7 ms. Remains : 86/86 places, 111/111 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 86/86 places, 111/111 transitions.
Applied a total of 0 rules in 6 ms. Remains 86 /86 variables (removed 0) and now considering 111/111 (removed 0) transitions.
[2026-05-23 08:44:10] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-23 08:44:10] [INFO ] Implicit Places using invariants in 107 ms returned []
[2026-05-23 08:44:10] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-23 08:44:10] [INFO ] State equation strengthened by 36 read => feed constraints.
[2026-05-23 08:44:10] [INFO ] Implicit Places using invariants and state equation in 357 ms returned []
Implicit Place search using SMT with State Equation took 466 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-23 08:44:10] [INFO ] Redundant transitions in 5 ms returned []
Running 110 sub problems to find dead transitions.
[2026-05-23 08:44:10] [INFO ] Invariant cache hit.
[2026-05-23 08:44:10] [INFO ] State equation strengthened by 36 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/85 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 110 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/85 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 110 unsolved
At refinement iteration 2 (OVERLAPS) 1/86 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 110 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/86 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 110 unsolved
At refinement iteration 4 (OVERLAPS) 111/197 variables, 86/88 constraints. Problems are: Problem set: 0 solved, 110 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/197 variables, 36/124 constraints. Problems are: Problem set: 0 solved, 110 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/197 variables, 0/124 constraints. Problems are: Problem set: 0 solved, 110 unsolved
At refinement iteration 7 (OVERLAPS) 0/197 variables, 0/124 constraints. Problems are: Problem set: 0 solved, 110 unsolved
No progress, stopping.
After SMT solving in domain Real declared 197/197 variables, and 124 constraints, problems are : Problem set: 0 solved, 110 unsolved in 6100 ms.
Refiners :[Generalized P Invariants (flows): 2/2 constraints, State Equation: 86/86 constraints, ReadFeed: 36/36 constraints, PredecessorRefiner: 110/110 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 110 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/85 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 110 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/85 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 110 unsolved
At refinement iteration 2 (OVERLAPS) 1/86 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 110 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/86 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 110 unsolved
At refinement iteration 4 (OVERLAPS) 111/197 variables, 86/88 constraints. Problems are: Problem set: 0 solved, 110 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/197 variables, 36/124 constraints. Problems are: Problem set: 0 solved, 110 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/197 variables, 110/234 constraints. Problems are: Problem set: 0 solved, 110 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/197 variables, 0/234 constraints. Problems are: Problem set: 0 solved, 110 unsolved
At refinement iteration 8 (OVERLAPS) 0/197 variables, 0/234 constraints. Problems are: Problem set: 0 solved, 110 unsolved
No progress, stopping.
After SMT solving in domain Int declared 197/197 variables, and 234 constraints, problems are : Problem set: 0 solved, 110 unsolved in 24574 ms.
Refiners :[Generalized P Invariants (flows): 2/2 constraints, State Equation: 86/86 constraints, ReadFeed: 36/36 constraints, PredecessorRefiner: 110/110 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 30754ms problems are : Problem set: 0 solved, 110 unsolved
Search for dead transitions found 0 dead transitions in 30757ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 31241 ms. Remains : 86/86 places, 111/111 transitions.
[2026-05-23 08:44:41] [INFO ] Flatten gal took : 39 ms
[2026-05-23 08:44:41] [INFO ] Flatten gal took : 13 ms
RANDOM walk for 40000 steps (9137 resets) in 158 ms. (251 steps per ms) remains 2/2 properties
[2026-05-23 08:44:41] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality6496318135469443671.gal : 5 ms
[2026-05-23 08:44:41] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality12106835169818772023.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/ReachabilityCardinality6496318135469443671.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality12106835169818772023.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/ReachabilityCardinality12106835169818772023.prop.
BEST_FIRST walk for 40003 steps (3892 resets) in 93 ms. (425 steps per ms) remains 2/2 properties
SDD proceeding with computation,2 properties remain. new max is 4
SDD size :1 after 7
SDD proceeding with computation,2 properties remain. new max is 8
SDD size :7 after 26
SDD proceeding with computation,2 properties remain. new max is 16
SDD size :26 after 58
SDD proceeding with computation,2 properties remain. new max is 32
SDD size :58 after 90
SDD proceeding with computation,2 properties remain. new max is 64
SDD size :90 after 154
BEST_FIRST walk for 40002 steps (3941 resets) in 73 ms. (540 steps per ms) remains 2/2 properties
SDD proceeding with computation,2 properties remain. new max is 128
SDD size :154 after 278
SDD proceeding with computation,2 properties remain. new max is 256
SDD size :278 after 494
SDD proceeding with computation,2 properties remain. new max is 512
SDD size :494 after 1114
SDD proceeding with computation,2 properties remain. new max is 1024
SDD size :1114 after 6682
SDD proceeding with computation,2 properties remain. new max is 2048
SDD size :6682 after 46306
SDD proceeding with computation,2 properties remain. new max is 4096
SDD size :46306 after 228011
SDD proceeding with computation,2 properties remain. new max is 8192
SDD size :228011 after 1.21081e+06
Interrupted probabilistic random walk after 2103424 steps, run timeout after 3001 ms. (steps per millisecond=700 ) properties seen :1 out of 2
Probabilistic random walk after 2103424 steps, saw 828727 distinct states, run finished after 3001 ms. (steps per millisecond=700 ) properties seen :1
[2026-05-23 08:44:44] [INFO ] Invariant cache hit.
[2026-05-23 08:44:44] [INFO ] State equation strengthened by 36 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) 6/7 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/7 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 85/92 variables, 7/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/92 variables, 9/17 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/92 variables, 0/17 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 102/194 variables, 75/92 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/194 variables, 27/119 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 08:44:44] [INFO ] Deduced a trap composed of 11 places in 69 ms of which 4 ms to minimize.
Problem MAX0 is UNSAT
After SMT solving in domain Real declared 194/197 variables, and 120 constraints, problems are : Problem set: 1 solved, 0 unsolved in 185 ms.
Refiners :[Generalized P Invariants (flows): 0/2 constraints, State Equation: 83/86 constraints, ReadFeed: 36/36 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 190ms problems are : Problem set: 1 solved, 0 unsolved
Skipping Parikh replay, no witness traces provided.
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:[8]
Ending property specific reduction for DBSingleClientW-PT-d1m08-UpperBounds-04 in 37437 ms.
Starting property specific reduction for DBSingleClientW-PT-d1m08-UpperBounds-10
Current structural bounds on expressions (Initially) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (Adding known information on max bounds.) : Max Seen:[0] Max Struct:[8]
Current structural bounds on expressions (Before main loop) : Max Seen:[0] Max Struct:[8]
// Phase 1: matrix 135 rows 96 cols
[2026-05-23 08:44:44] [INFO ] Computed 2 invariants in 1 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[8]
RANDOM walk for 10000 steps (2309 resets) in 17 ms. (555 steps per ms)
BEST_FIRST walk for 10001 steps (979 resets) in 8 ms. (1111 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0] Max Struct:[8]
[2026-05-23 08:44:44] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 08:44:44] [INFO ] [Real]Absence check using 0 positive and 2 generalized place invariants in 3 ms returned sat
[2026-05-23 08:44:44] [INFO ] [Real]Absence check using state equation in 44 ms returned sat
[2026-05-23 08:44:44] [INFO ] State equation strengthened by 50 read => feed constraints.
[2026-05-23 08:44:44] [INFO ] [Real]Added 50 Read/Feed constraints in 10 ms returned sat
[2026-05-23 08:44:44] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 08:44:44] [INFO ] [Nat]Absence check using 0 positive and 2 generalized place invariants in 2 ms returned sat
[2026-05-23 08:44:44] [INFO ] [Nat]Absence check using state equation in 53 ms returned sat
[2026-05-23 08:44:44] [INFO ] [Nat]Added 50 Read/Feed constraints in 11 ms returned sat
[2026-05-23 08:44:44] [INFO ] Computed and/alt/rep : 34/81/34 causal constraints (skipped 100 transitions) in 12 ms.
[2026-05-23 08:44:45] [INFO ] Added : 7 causal constraints over 2 iterations in 49 ms. Result :sat
Minimization took 132 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0] Max Struct:[8]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0] Max Struct:[8]
Support contains 1 out of 96 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 96/96 places, 135/135 transitions.
Discarding 2 places :
Symmetric choice reduction at 0 with 2 rule applications. Total rules 2 place count 94 transition count 129
Iterating global reduction 0 with 2 rules applied. Total rules applied 4 place count 94 transition count 129
Discarding 2 places :
Symmetric choice reduction at 0 with 2 rule applications. Total rules 6 place count 92 transition count 126
Iterating global reduction 0 with 2 rules applied. Total rules applied 8 place count 92 transition count 126
Ensure Unique test removed 3 transitions
Reduce isomorphic transitions removed 3 transitions.
Iterating post reduction 0 with 3 rules applied. Total rules applied 11 place count 92 transition count 123
Discarding 2 places :
Symmetric choice reduction at 1 with 2 rule applications. Total rules 13 place count 90 transition count 115
Iterating global reduction 1 with 2 rules applied. Total rules applied 15 place count 90 transition count 115
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 16 place count 89 transition count 114
Iterating global reduction 1 with 1 rules applied. Total rules applied 17 place count 89 transition count 114
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 1 with 1 rules applied. Total rules applied 18 place count 89 transition count 113
Applied a total of 18 rules in 15 ms. Remains 89 /96 variables (removed 7) and now considering 113/135 (removed 22) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 15 ms. Remains : 89/96 places, 113/135 transitions.
// Phase 1: matrix 113 rows 89 cols
[2026-05-23 08:44:45] [INFO ] Computed 2 invariants in 1 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[8]
RANDOM walk for 1000000 steps (229534 resets) in 1647 ms. (606 steps per ms)
BEST_FIRST walk for 1000000 steps (98240 resets) in 622 ms. (1605 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0] Max Struct:[8]
[2026-05-23 08:44:47] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-23 08:44:47] [INFO ] [Real]Absence check using 0 positive and 2 generalized place invariants in 2 ms returned sat
[2026-05-23 08:44:47] [INFO ] [Real]Absence check using state equation in 45 ms returned sat
[2026-05-23 08:44:47] [INFO ] State equation strengthened by 36 read => feed constraints.
[2026-05-23 08:44:47] [INFO ] [Real]Added 36 Read/Feed constraints in 8 ms returned sat
[2026-05-23 08:44:47] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-23 08:44:47] [INFO ] [Nat]Absence check using 0 positive and 2 generalized place invariants in 3 ms returned sat
[2026-05-23 08:44:47] [INFO ] [Nat]Absence check using state equation in 68 ms returned sat
[2026-05-23 08:44:47] [INFO ] [Nat]Added 36 Read/Feed constraints in 12 ms returned sat
[2026-05-23 08:44:47] [INFO ] Computed and/alt/rep : 32/67/32 causal constraints (skipped 80 transitions) in 15 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 08:44:47] [INFO ] Deduced a trap composed of 11 places in 95 ms of which 5 ms to minimize.
[2026-05-23 08:44:47] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 116 ms
[2026-05-23 08:44:47] [INFO ] Added : 10 causal constraints over 5 iterations in 222 ms. Result :sat
Minimization took 119 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0] Max Struct:[8]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0] Max Struct:[8]
Support contains 1 out of 89 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 89/89 places, 113/113 transitions.
Applied a total of 0 rules in 9 ms. Remains 89 /89 variables (removed 0) and now considering 113/113 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 9 ms. Remains : 89/89 places, 113/113 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 89/89 places, 113/113 transitions.
Applied a total of 0 rules in 5 ms. Remains 89 /89 variables (removed 0) and now considering 113/113 (removed 0) transitions.
[2026-05-23 08:44:48] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-23 08:44:48] [INFO ] Implicit Places using invariants in 121 ms returned []
[2026-05-23 08:44:48] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-23 08:44:48] [INFO ] State equation strengthened by 36 read => feed constraints.
[2026-05-23 08:44:48] [INFO ] Implicit Places using invariants and state equation in 443 ms returned []
Implicit Place search using SMT with State Equation took 566 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-23 08:44:48] [INFO ] Redundant transitions in 3 ms returned []
Running 112 sub problems to find dead transitions.
[2026-05-23 08:44:48] [INFO ] Invariant cache hit.
[2026-05-23 08:44:48] [INFO ] State equation strengthened by 36 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/88 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 112 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/88 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 112 unsolved
At refinement iteration 2 (OVERLAPS) 1/89 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 112 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/89 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 112 unsolved
At refinement iteration 4 (OVERLAPS) 113/202 variables, 89/91 constraints. Problems are: Problem set: 0 solved, 112 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/202 variables, 36/127 constraints. Problems are: Problem set: 0 solved, 112 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/202 variables, 0/127 constraints. Problems are: Problem set: 0 solved, 112 unsolved
At refinement iteration 7 (OVERLAPS) 0/202 variables, 0/127 constraints. Problems are: Problem set: 0 solved, 112 unsolved
No progress, stopping.
After SMT solving in domain Real declared 202/202 variables, and 127 constraints, problems are : Problem set: 0 solved, 112 unsolved in 6416 ms.
Refiners :[Generalized P Invariants (flows): 2/2 constraints, State Equation: 89/89 constraints, ReadFeed: 36/36 constraints, PredecessorRefiner: 112/112 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 112 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/88 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 112 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/88 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 112 unsolved
At refinement iteration 2 (OVERLAPS) 1/89 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 112 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/89 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 112 unsolved
At refinement iteration 4 (OVERLAPS) 113/202 variables, 89/91 constraints. Problems are: Problem set: 0 solved, 112 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/202 variables, 36/127 constraints. Problems are: Problem set: 0 solved, 112 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/202 variables, 112/239 constraints. Problems are: Problem set: 0 solved, 112 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/202 variables, 0/239 constraints. Problems are: Problem set: 0 solved, 112 unsolved
At refinement iteration 8 (OVERLAPS) 0/202 variables, 0/239 constraints. Problems are: Problem set: 0 solved, 112 unsolved
No progress, stopping.
After SMT solving in domain Int declared 202/202 variables, and 239 constraints, problems are : Problem set: 0 solved, 112 unsolved in 18450 ms.
Refiners :[Generalized P Invariants (flows): 2/2 constraints, State Equation: 89/89 constraints, ReadFeed: 36/36 constraints, PredecessorRefiner: 112/112 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 24952ms problems are : Problem set: 0 solved, 112 unsolved
Search for dead transitions found 0 dead transitions in 24953ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 25533 ms. Remains : 89/89 places, 113/113 transitions.
[2026-05-23 08:45:13] [INFO ] Flatten gal took : 14 ms
RANDOM walk for 40000 steps (9209 resets) in 131 ms. (303 steps per ms) remains 2/2 properties
[2026-05-23 08:45:13] [INFO ] Flatten gal took : 10 ms
[2026-05-23 08:45:13] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality15039737541030040678.gal : 3 ms
[2026-05-23 08:45:13] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality10058686273309814074.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/ReachabilityCardinality15039737541030040678.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality10058686273309814074.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...330
Loading property file /tmp/ReachabilityCardinality10058686273309814074.prop.
SDD proceeding with computation,2 properties remain. new max is 4
SDD size :1 after 7
SDD proceeding with computation,2 properties remain. new max is 8
SDD size :7 after 26
SDD proceeding with computation,2 properties remain. new max is 16
SDD size :26 after 58
SDD proceeding with computation,2 properties remain. new max is 32
SDD size :58 after 90
SDD proceeding with computation,2 properties remain. new max is 64
SDD size :90 after 154
BEST_FIRST walk for 40002 steps (3993 resets) in 157 ms. (253 steps per ms) remains 2/2 properties
SDD proceeding with computation,2 properties remain. new max is 128
SDD size :154 after 262
BEST_FIRST walk for 40002 steps (3962 resets) in 66 ms. (597 steps per ms) remains 2/2 properties
SDD proceeding with computation,2 properties remain. new max is 256
SDD size :262 after 470
SDD proceeding with computation,2 properties remain. new max is 512
SDD size :470 after 848
SDD proceeding with computation,2 properties remain. new max is 1024
SDD size :848 after 6634
SDD proceeding with computation,2 properties remain. new max is 2048
SDD size :6634 after 37216
SDD proceeding with computation,2 properties remain. new max is 4096
SDD size :37216 after 141993
SDD proceeding with computation,2 properties remain. new max is 8192
SDD size :141993 after 952995
Interrupted probabilistic random walk after 2081301 steps, run timeout after 3001 ms. (steps per millisecond=693 ) properties seen :1 out of 2
Probabilistic random walk after 2081301 steps, saw 796968 distinct states, run finished after 3001 ms. (steps per millisecond=693 ) properties seen :1
[2026-05-23 08:45:16] [INFO ] Invariant cache hit.
[2026-05-23 08:45:16] [INFO ] State equation strengthened by 36 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) 6/7 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/7 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 17/24 variables, 5/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/24 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 86/110 variables, 15/21 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/110 variables, 12/33 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/110 variables, 0/33 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 44/154 variables, 1/34 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/154 variables, 27/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/154 variables, 0/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 7/161 variables, 1/62 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/161 variables, 5/67 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/161 variables, 0/67 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 41/202 variables, 36/103 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/202 variables, 24/127 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 08:45:16] [INFO ] Deduced a trap composed of 11 places in 83 ms of which 9 ms to minimize.
Problem MAX0 is UNSAT
After SMT solving in domain Real declared 202/202 variables, and 128 constraints, problems are : Problem set: 1 solved, 0 unsolved in 230 ms.
Refiners :[Generalized P Invariants (flows): 2/2 constraints, State Equation: 89/89 constraints, ReadFeed: 36/36 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 236ms problems are : Problem set: 1 solved, 0 unsolved
Skipping Parikh replay, no witness traces provided.
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:[8]
Ending property specific reduction for DBSingleClientW-PT-d1m08-UpperBounds-10 in 32250 ms.
Starting property specific reduction for DBSingleClientW-PT-d1m08-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:[10]
Current structural bounds on expressions (Before main loop) : Max Seen:[0] Max Struct:[10]
// Phase 1: matrix 135 rows 96 cols
[2026-05-23 08:45:17] [INFO ] Computed 2 invariants in 1 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[10]
RANDOM walk for 10000 steps (2303 resets) in 16 ms. (588 steps per ms)
BEST_FIRST walk for 10000 steps (1010 resets) in 9 ms. (1000 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[1] Max Struct:[10]
[2026-05-23 08:45:17] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 08:45:17] [INFO ] [Real]Absence check using 0 positive and 2 generalized place invariants in 2 ms returned sat
[2026-05-23 08:45:17] [INFO ] [Real]Absence check using state equation in 52 ms returned sat
[2026-05-23 08:45:17] [INFO ] State equation strengthened by 50 read => feed constraints.
[2026-05-23 08:45:17] [INFO ] [Real]Added 50 Read/Feed constraints in 13 ms returned sat
[2026-05-23 08:45:17] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 08:45:17] [INFO ] [Nat]Absence check using 0 positive and 2 generalized place invariants in 4 ms returned sat
[2026-05-23 08:45:17] [INFO ] [Nat]Absence check using state equation in 81 ms returned sat
[2026-05-23 08:45:17] [INFO ] [Nat]Added 50 Read/Feed constraints in 17 ms returned sat
[2026-05-23 08:45:17] [INFO ] Computed and/alt/rep : 34/81/34 causal constraints (skipped 100 transitions) in 18 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 08:45:17] [INFO ] Deduced a trap composed of 13 places in 84 ms of which 3 ms to minimize.
[2026-05-23 08:45:17] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 106 ms
[2026-05-23 08:45:17] [INFO ] Added : 2 causal constraints over 1 iterations in 170 ms. Result :sat
Minimization took 143 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[1] Max Struct:[10]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[1] Max Struct:[10]
Support contains 1 out of 96 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 96/96 places, 135/135 transitions.
Discarding 3 places :
Symmetric choice reduction at 0 with 3 rule applications. Total rules 3 place count 93 transition count 124
Iterating global reduction 0 with 3 rules applied. Total rules applied 6 place count 93 transition count 124
Discarding 3 places :
Symmetric choice reduction at 0 with 3 rule applications. Total rules 9 place count 90 transition count 120
Iterating global reduction 0 with 3 rules applied. Total rules applied 12 place count 90 transition count 120
Ensure Unique test removed 3 transitions
Reduce isomorphic transitions removed 3 transitions.
Iterating post reduction 0 with 3 rules applied. Total rules applied 15 place count 90 transition count 117
Discarding 4 places :
Symmetric choice reduction at 1 with 4 rule applications. Total rules 19 place count 86 transition count 107
Iterating global reduction 1 with 4 rules applied. Total rules applied 23 place count 86 transition count 107
Discarding 2 places :
Symmetric choice reduction at 1 with 2 rule applications. Total rules 25 place count 84 transition count 102
Iterating global reduction 1 with 2 rules applied. Total rules applied 27 place count 84 transition count 102
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 1 with 1 rules applied. Total rules applied 28 place count 84 transition count 101
Discarding 1 places :
Symmetric choice reduction at 2 with 1 rule applications. Total rules 29 place count 83 transition count 100
Iterating global reduction 2 with 1 rules applied. Total rules applied 30 place count 83 transition count 100
Discarding 1 places :
Symmetric choice reduction at 2 with 1 rule applications. Total rules 31 place count 82 transition count 99
Iterating global reduction 2 with 1 rules applied. Total rules applied 32 place count 82 transition count 99
Applied a total of 32 rules in 25 ms. Remains 82 /96 variables (removed 14) and now considering 99/135 (removed 36) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 25 ms. Remains : 82/96 places, 99/135 transitions.
// Phase 1: matrix 99 rows 82 cols
[2026-05-23 08:45:17] [INFO ] Computed 2 invariants in 1 ms
Current structural bounds on expressions (after invariants) : Max Seen:[1] Max Struct:[10]
RANDOM walk for 1000000 steps (229679 resets) in 1479 ms. (675 steps per ms)
BEST_FIRST walk for 1000000 steps (98414 resets) in 543 ms. (1838 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[3] Max Struct:[10]
[2026-05-23 08:45:19] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-23 08:45:19] [INFO ] [Real]Absence check using 0 positive and 2 generalized place invariants in 3 ms returned sat
[2026-05-23 08:45:19] [INFO ] [Real]Absence check using state equation in 58 ms returned sat
[2026-05-23 08:45:19] [INFO ] State equation strengthened by 29 read => feed constraints.
[2026-05-23 08:45:19] [INFO ] [Real]Added 29 Read/Feed constraints in 12 ms returned sat
[2026-05-23 08:45:19] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-23 08:45:19] [INFO ] [Nat]Absence check using 0 positive and 2 generalized place invariants in 3 ms returned sat
[2026-05-23 08:45:19] [INFO ] [Nat]Absence check using state equation in 56 ms returned sat
[2026-05-23 08:45:19] [INFO ] [Nat]Added 29 Read/Feed constraints in 10 ms returned sat
[2026-05-23 08:45:19] [INFO ] Computed and/alt/rep : 29/61/29 causal constraints (skipped 69 transitions) in 10 ms.
[2026-05-23 08:45:19] [INFO ] Added : 2 causal constraints over 1 iterations in 43 ms. Result :sat
Minimization took 68 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[3] Max Struct:[10]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[3] Max Struct:[10]
Support contains 1 out of 82 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 82/82 places, 99/99 transitions.
Applied a total of 0 rules in 3 ms. Remains 82 /82 variables (removed 0) and now considering 99/99 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 3 ms. Remains : 82/82 places, 99/99 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 82/82 places, 99/99 transitions.
Applied a total of 0 rules in 2 ms. Remains 82 /82 variables (removed 0) and now considering 99/99 (removed 0) transitions.
[2026-05-23 08:45:20] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-23 08:45:20] [INFO ] Implicit Places using invariants in 112 ms returned []
[2026-05-23 08:45:20] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-23 08:45:20] [INFO ] State equation strengthened by 29 read => feed constraints.
[2026-05-23 08:45:20] [INFO ] Implicit Places using invariants and state equation in 315 ms returned []
Implicit Place search using SMT with State Equation took 429 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-23 08:45:20] [INFO ] Redundant transitions in 1 ms returned []
Running 98 sub problems to find dead transitions.
[2026-05-23 08:45:20] [INFO ] Invariant cache hit.
[2026-05-23 08:45:20] [INFO ] State equation strengthened by 29 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/81 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 98 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/81 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 98 unsolved
At refinement iteration 2 (OVERLAPS) 1/82 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 98 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/82 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 98 unsolved
At refinement iteration 4 (OVERLAPS) 99/181 variables, 82/84 constraints. Problems are: Problem set: 0 solved, 98 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/181 variables, 29/113 constraints. Problems are: Problem set: 0 solved, 98 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/181 variables, 0/113 constraints. Problems are: Problem set: 0 solved, 98 unsolved
At refinement iteration 7 (OVERLAPS) 0/181 variables, 0/113 constraints. Problems are: Problem set: 0 solved, 98 unsolved
No progress, stopping.
After SMT solving in domain Real declared 181/181 variables, and 113 constraints, problems are : Problem set: 0 solved, 98 unsolved in 4297 ms.
Refiners :[Generalized P Invariants (flows): 2/2 constraints, State Equation: 82/82 constraints, ReadFeed: 29/29 constraints, PredecessorRefiner: 98/98 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 98 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/81 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 98 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/81 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 98 unsolved
At refinement iteration 2 (OVERLAPS) 1/82 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 98 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/82 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 98 unsolved
At refinement iteration 4 (OVERLAPS) 99/181 variables, 82/84 constraints. Problems are: Problem set: 0 solved, 98 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/181 variables, 29/113 constraints. Problems are: Problem set: 0 solved, 98 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/181 variables, 98/211 constraints. Problems are: Problem set: 0 solved, 98 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/181 variables, 0/211 constraints. Problems are: Problem set: 0 solved, 98 unsolved
At refinement iteration 8 (OVERLAPS) 0/181 variables, 0/211 constraints. Problems are: Problem set: 0 solved, 98 unsolved
No progress, stopping.
After SMT solving in domain Int declared 181/181 variables, and 211 constraints, problems are : Problem set: 0 solved, 98 unsolved in 16001 ms.
Refiners :[Generalized P Invariants (flows): 2/2 constraints, State Equation: 82/82 constraints, ReadFeed: 29/29 constraints, PredecessorRefiner: 98/98 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 20338ms problems are : Problem set: 0 solved, 98 unsolved
Search for dead transitions found 0 dead transitions in 20339ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 20777 ms. Remains : 82/82 places, 99/99 transitions.
[2026-05-23 08:45:40] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[3] Max Struct:[10]
RANDOM walk for 1000000 steps (229936 resets) in 1356 ms. (736 steps per ms)
BEST_FIRST walk for 1000001 steps (97699 resets) in 545 ms. (1831 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[3] Max Struct:[10]
[2026-05-23 08:45:42] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-23 08:45:42] [INFO ] [Real]Absence check using 0 positive and 2 generalized place invariants in 3 ms returned sat
[2026-05-23 08:45:42] [INFO ] [Real]Absence check using state equation in 60 ms returned sat
[2026-05-23 08:45:42] [INFO ] State equation strengthened by 29 read => feed constraints.
[2026-05-23 08:45:42] [INFO ] [Real]Added 29 Read/Feed constraints in 12 ms returned sat
[2026-05-23 08:45:42] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-23 08:45:42] [INFO ] [Nat]Absence check using 0 positive and 2 generalized place invariants in 2 ms returned sat
[2026-05-23 08:45:42] [INFO ] [Nat]Absence check using state equation in 43 ms returned sat
[2026-05-23 08:45:42] [INFO ] [Nat]Added 29 Read/Feed constraints in 9 ms returned sat
[2026-05-23 08:45:42] [INFO ] Computed and/alt/rep : 29/61/29 causal constraints (skipped 69 transitions) in 9 ms.
[2026-05-23 08:45:43] [INFO ] Added : 2 causal constraints over 1 iterations in 34 ms. Result :sat
Minimization took 45 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[3] Max Struct:[10]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[3] Max Struct:[10]
Support contains 1 out of 82 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 82/82 places, 99/99 transitions.
Applied a total of 0 rules in 3 ms. Remains 82 /82 variables (removed 0) and now considering 99/99 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 3 ms. Remains : 82/82 places, 99/99 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 82/82 places, 99/99 transitions.
Applied a total of 0 rules in 2 ms. Remains 82 /82 variables (removed 0) and now considering 99/99 (removed 0) transitions.
[2026-05-23 08:45:43] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-23 08:45:43] [INFO ] Implicit Places using invariants in 126 ms returned []
[2026-05-23 08:45:43] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-23 08:45:43] [INFO ] State equation strengthened by 29 read => feed constraints.
[2026-05-23 08:45:43] [INFO ] Implicit Places using invariants and state equation in 346 ms returned []
Implicit Place search using SMT with State Equation took 475 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-23 08:45:43] [INFO ] Redundant transitions in 1 ms returned []
Running 98 sub problems to find dead transitions.
[2026-05-23 08:45:43] [INFO ] Invariant cache hit.
[2026-05-23 08:45:43] [INFO ] State equation strengthened by 29 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/81 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 98 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/81 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 98 unsolved
At refinement iteration 2 (OVERLAPS) 1/82 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 98 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/82 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 98 unsolved
At refinement iteration 4 (OVERLAPS) 99/181 variables, 82/84 constraints. Problems are: Problem set: 0 solved, 98 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/181 variables, 29/113 constraints. Problems are: Problem set: 0 solved, 98 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/181 variables, 0/113 constraints. Problems are: Problem set: 0 solved, 98 unsolved
At refinement iteration 7 (OVERLAPS) 0/181 variables, 0/113 constraints. Problems are: Problem set: 0 solved, 98 unsolved
No progress, stopping.
After SMT solving in domain Real declared 181/181 variables, and 113 constraints, problems are : Problem set: 0 solved, 98 unsolved in 3877 ms.
Refiners :[Generalized P Invariants (flows): 2/2 constraints, State Equation: 82/82 constraints, ReadFeed: 29/29 constraints, PredecessorRefiner: 98/98 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 98 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/81 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 98 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/81 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 98 unsolved
At refinement iteration 2 (OVERLAPS) 1/82 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 98 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/82 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 98 unsolved
At refinement iteration 4 (OVERLAPS) 99/181 variables, 82/84 constraints. Problems are: Problem set: 0 solved, 98 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/181 variables, 29/113 constraints. Problems are: Problem set: 0 solved, 98 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/181 variables, 98/211 constraints. Problems are: Problem set: 0 solved, 98 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/181 variables, 0/211 constraints. Problems are: Problem set: 0 solved, 98 unsolved
At refinement iteration 8 (OVERLAPS) 0/181 variables, 0/211 constraints. Problems are: Problem set: 0 solved, 98 unsolved
No progress, stopping.
After SMT solving in domain Int declared 181/181 variables, and 211 constraints, problems are : Problem set: 0 solved, 98 unsolved in 16409 ms.
Refiners :[Generalized P Invariants (flows): 2/2 constraints, State Equation: 82/82 constraints, ReadFeed: 29/29 constraints, PredecessorRefiner: 98/98 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 20339ms problems are : Problem set: 0 solved, 98 unsolved
Search for dead transitions found 0 dead transitions in 20340ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 20827 ms. Remains : 82/82 places, 99/99 transitions.
[2026-05-23 08:46:03] [INFO ] Flatten gal took : 10 ms
[2026-05-23 08:46:03] [INFO ] Flatten gal took : 9 ms
[2026-05-23 08:46:03] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality13162675840124916236.gal : 2 ms
[2026-05-23 08:46:03] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality15740705462584876359.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/ReachabilityCardinality13162675840124916236.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality15740705462584876359.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...330
Loading property file /tmp/ReachabilityCardinality15740705462584876359.prop.
SDD proceeding with computation,2 properties remain. new max is 4
SDD size :1 after 7
SDD proceeding with computation,2 properties remain. new max is 8
SDD size :7 after 26
SDD proceeding with computation,2 properties remain. new max is 16
SDD size :26 after 58
SDD proceeding with computation,2 properties remain. new max is 32
SDD size :58 after 120
SDD proceeding with computation,2 properties remain. new max is 64
SDD size :120 after 224
SDD proceeding with computation,2 properties remain. new max is 128
SDD size :224 after 374
RANDOM walk for 40000 steps (9143 resets) in 275 ms. (144 steps per ms) remains 2/2 properties
SDD proceeding with computation,2 properties remain. new max is 256
SDD size :374 after 718
BEST_FIRST walk for 40001 steps (3974 resets) in 85 ms. (465 steps per ms) remains 2/2 properties
BEST_FIRST walk for 40002 steps (3831 resets) in 59 ms. (666 steps per ms) remains 2/2 properties
SDD proceeding with computation,2 properties remain. new max is 512
SDD size :718 after 4547
SDD proceeding with computation,2 properties remain. new max is 1024
SDD size :4547 after 9922
SDD proceeding with computation,2 properties remain. new max is 2048
SDD size :9922 after 75436
SDD proceeding with computation,2 properties remain. new max is 4096
SDD size :75436 after 242728
SDD proceeding with computation,2 properties remain. new max is 8192
SDD size :242728 after 513074
SDD proceeding with computation,2 properties remain. new max is 16384
SDD size :513074 after 1.6965e+06
Interrupted probabilistic random walk after 716307 steps, run timeout after 3001 ms. (steps per millisecond=238 ) properties seen :0 out of 2
Probabilistic random walk after 716307 steps, saw 292713 distinct states, run finished after 3001 ms. (steps per millisecond=238 ) properties seen :0
[2026-05-23 08:46:07] [INFO ] Invariant cache hit.
[2026-05-23 08:46:07] [INFO ] State equation strengthened by 29 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, 2 unsolved
At refinement iteration 1 (OVERLAPS) 51/52 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/52 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 3 (OVERLAPS) 7/59 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/59 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 5 (OVERLAPS) 75/134 variables, 59/61 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/134 variables, 0/61 constraints. Problems are: Problem set: 0 solved, 2 unsolved
Problem MAX0 is UNSAT
At refinement iteration 7 (OVERLAPS) 38/172 variables, 18/79 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/172 variables, 25/104 constraints. Problems are: Problem set: 1 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 9 (INCLUDED_ONLY) 0/172 variables, 0/104 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 9/181 variables, 5/109 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/181 variables, 4/113 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/181 variables, 0/113 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 0/181 variables, 0/113 constraints. Problems are: Problem set: 1 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 181/181 variables, and 113 constraints, problems are : Problem set: 1 solved, 1 unsolved in 158 ms.
Refiners :[Generalized P Invariants (flows): 2/2 constraints, State Equation: 82/82 constraints, ReadFeed: 29/29 constraints, PredecessorRefiner: 2/2 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 1 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: 1 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 51/52 variables, 1/1 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/52 variables, 0/1 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 7/59 variables, 1/2 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/59 variables, 0/2 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 75/134 variables, 59/61 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/134 variables, 0/61 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 38/172 variables, 18/79 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/172 variables, 25/104 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/172 variables, 1/105 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/172 variables, 0/105 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 9/181 variables, 5/110 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/181 variables, 4/114 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/181 variables, 0/114 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 0/181 variables, 0/114 constraints. Problems are: Problem set: 1 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 181/181 variables, and 114 constraints, problems are : Problem set: 1 solved, 1 unsolved in 155 ms.
Refiners :[Generalized P Invariants (flows): 2/2 constraints, State Equation: 82/82 constraints, ReadFeed: 29/29 constraints, PredecessorRefiner: 1/2 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 320ms problems are : Problem set: 1 solved, 1 unsolved
Parikh walk visited 0 properties in 9 ms.
Support contains 1 out of 82 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 82/82 places, 99/99 transitions.
Applied a total of 0 rules in 3 ms. Remains 82 /82 variables (removed 0) and now considering 99/99 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 3 ms. Remains : 82/82 places, 99/99 transitions.
RANDOM walk for 40000 steps (9149 resets) in 99 ms. (400 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (3921 resets) in 44 ms. (888 steps per ms) remains 1/1 properties
SDD proceeding with computation,2 properties remain. new max is 32768
SDD size :1.6965e+06 after 2.58614e+06
Interrupted probabilistic random walk after 2285304 steps, run timeout after 3001 ms. (steps per millisecond=761 ) properties seen :0 out of 1
Probabilistic random walk after 2285304 steps, saw 914788 distinct states, run finished after 3004 ms. (steps per millisecond=760 ) properties seen :0
[2026-05-23 08:46:10] [INFO ] Invariant cache hit.
[2026-05-23 08:46:10] [INFO ] State equation strengthened by 29 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) 51/52 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/52 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 7/59 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/59 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 75/134 variables, 59/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/134 variables, 0/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 38/172 variables, 18/79 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/172 variables, 25/104 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 9 (INCLUDED_ONLY) 0/172 variables, 0/104 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 9/181 variables, 5/109 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/181 variables, 4/113 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/181 variables, 0/113 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 0/181 variables, 0/113 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 181/181 variables, and 113 constraints, problems are : Problem set: 0 solved, 1 unsolved in 171 ms.
Refiners :[Generalized P Invariants (flows): 2/2 constraints, State Equation: 82/82 constraints, ReadFeed: 29/29 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) 51/52 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/52 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 7/59 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/59 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 75/134 variables, 59/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/134 variables, 0/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 38/172 variables, 18/79 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/172 variables, 25/104 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/172 variables, 1/105 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/172 variables, 0/105 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 9/181 variables, 5/110 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/181 variables, 4/114 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/181 variables, 0/114 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 0/181 variables, 0/114 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 181/181 variables, and 114 constraints, problems are : Problem set: 0 solved, 1 unsolved in 201 ms.
Refiners :[Generalized P Invariants (flows): 2/2 constraints, State Equation: 82/82 constraints, ReadFeed: 29/29 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 379ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 5 ms.
Support contains 1 out of 82 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 82/82 places, 99/99 transitions.
Applied a total of 0 rules in 3 ms. Remains 82 /82 variables (removed 0) and now considering 99/99 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 3 ms. Remains : 82/82 places, 99/99 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 82/82 places, 99/99 transitions.
Applied a total of 0 rules in 3 ms. Remains 82 /82 variables (removed 0) and now considering 99/99 (removed 0) transitions.
[2026-05-23 08:46:10] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-23 08:46:10] [INFO ] Implicit Places using invariants in 99 ms returned []
[2026-05-23 08:46:10] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-23 08:46:11] [INFO ] State equation strengthened by 29 read => feed constraints.
[2026-05-23 08:46:11] [INFO ] Implicit Places using invariants and state equation in 318 ms returned []
Implicit Place search using SMT with State Equation took 421 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-23 08:46:11] [INFO ] Redundant transitions in 0 ms returned []
Running 98 sub problems to find dead transitions.
[2026-05-23 08:46:11] [INFO ] Invariant cache hit.
[2026-05-23 08:46:11] [INFO ] State equation strengthened by 29 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/81 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 98 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/81 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 98 unsolved
At refinement iteration 2 (OVERLAPS) 1/82 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 98 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/82 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 98 unsolved
At refinement iteration 4 (OVERLAPS) 99/181 variables, 82/84 constraints. Problems are: Problem set: 0 solved, 98 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/181 variables, 29/113 constraints. Problems are: Problem set: 0 solved, 98 unsolved
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
petri\_inst\_inst,1.00948e+07,10.3149,185308,2,20893,19,551663,8,0,431,681307,0
Total reachable state count : 10094754

Verifying 2 reachability properties.
Reachability property MAX0 does not hold.
No reachable states exhibit your property : MAX0

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
MAX0,0,10.3217,185308,1,0,19,551663,8,0,432,681307,0
Invariant property MIN0 is true.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
MIN0,0,10.3286,185308,1,0,19,551663,8,0,432,681307,0
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/181 variables, 0/113 constraints. Problems are: Problem set: 0 solved, 98 unsolved
At refinement iteration 7 (OVERLAPS) 0/181 variables, 0/113 constraints. Problems are: Problem set: 0 solved, 98 unsolved
No progress, stopping.
After SMT solving in domain Real declared 181/181 variables, and 113 constraints, problems are : Problem set: 0 solved, 98 unsolved in 4016 ms.
Refiners :[Generalized P Invariants (flows): 2/2 constraints, State Equation: 82/82 constraints, ReadFeed: 29/29 constraints, PredecessorRefiner: 98/98 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 98 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/81 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 98 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/81 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 98 unsolved
At refinement iteration 2 (OVERLAPS) 1/82 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 98 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/82 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 98 unsolved
At refinement iteration 4 (OVERLAPS) 99/181 variables, 82/84 constraints. Problems are: Problem set: 0 solved, 98 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/181 variables, 29/113 constraints. Problems are: Problem set: 0 solved, 98 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/181 variables, 98/211 constraints. Problems are: Problem set: 0 solved, 98 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/181 variables, 0/211 constraints. Problems are: Problem set: 0 solved, 98 unsolved
At refinement iteration 8 (OVERLAPS) 0/181 variables, 0/211 constraints. Problems are: Problem set: 0 solved, 98 unsolved
No progress, stopping.
After SMT solving in domain Int declared 181/181 variables, and 211 constraints, problems are : Problem set: 0 solved, 98 unsolved in 16078 ms.
Refiners :[Generalized P Invariants (flows): 2/2 constraints, State Equation: 82/82 constraints, ReadFeed: 29/29 constraints, PredecessorRefiner: 98/98 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 20144ms problems are : Problem set: 0 solved, 98 unsolved
Search for dead transitions found 0 dead transitions in 20145ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 20588 ms. Remains : 82/82 places, 99/99 transitions.
FORMULA DBSingleClientW-PT-d1m08-UpperBounds-11 3 TECHNIQUES REACHABILITY_MIN
Current structural bounds on expressions (After reachability solving 1 queries.) : Max Seen:[] Max Struct:[]
Ending property specific reduction for DBSingleClientW-PT-d1m08-UpperBounds-11 in 74430 ms.
[2026-05-23 08:46:31] [INFO ] Flatten gal took : 14 ms
[2026-05-23 08:46:31] [INFO ] Applying decomposition
[2026-05-23 08:46:31] [INFO ] Flatten gal took : 11 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/graph7077480259823718215.txt' '-o' '/tmp/graph7077480259823718215.bin' '-w' '/tmp/graph7077480259823718215.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/louvain-linux64' '/tmp/graph7077480259823718215.bin' '-l' '-1' '-v' '-w' '/tmp/graph7077480259823718215.weights' '-q' '0' '-e' '0.001'
[2026-05-23 08:46:31] [INFO ] Decomposing Gal with order
[2026-05-23 08:46:31] [INFO ] Rewriting arrays to variables to allow decomposition.
[2026-05-23 08:46:31] [INFO ] Removed a total of 138 redundant transitions.
[2026-05-23 08:46:31] [INFO ] Flatten gal took : 85 ms
[2026-05-23 08:46:31] [INFO ] Fuse similar labels procedure discarded/fused a total of 83 labels/synchronizations in 24 ms.
[2026-05-23 08:46:31] [INFO ] Time to serialize gal into /tmp/UpperBounds11065894666306940505.gal : 24 ms
[2026-05-23 08:46:31] [INFO ] Time to serialize properties into /tmp/UpperBounds5304399551507564054.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/UpperBounds11065894666306940505.gal' '-t' 'CGAL' '-reachable-file' '/tmp/UpperBounds5304399551507564054.prop' '--nowitness'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...284
Loading property file /tmp/UpperBounds5304399551507564054.prop.
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
petri\_inst\_inst\_mod\_flat,4.09659e+07,87.1291,1587944,4536,4370,524722,416359,371,1.08971e+07,158,1.36919e+07,0
Total reachable state count : 40965887

Verifying 3 reachability properties.
Min sum of variable value : 0
Maximum sum along a path : 1
Bounds property DBSingleClientW-PT-d1m08-UpperBounds-01 :0 <= i2.u7.p13 <= 1
FORMULA DBSingleClientW-PT-d1m08-UpperBounds-01 1 TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
DBSingleClientW-PT-d1m08-UpperBounds-01,0,88.2955,1587944,1,0,524722,416359,474,1.08971e+07,189,1.36919e+07,2650
Min sum of variable value : 0
Maximum sum along a path : 5
Bounds property DBSingleClientW-PT-d1m08-UpperBounds-04 :0 <= i5.u15.l1028 <= 5
FORMULA DBSingleClientW-PT-d1m08-UpperBounds-04 5 TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
DBSingleClientW-PT-d1m08-UpperBounds-04,0,88.3545,1587944,1,0,524722,416359,501,1.08971e+07,198,1.36919e+07,2945
Min sum of variable value : 0
Maximum sum along a path : 5
Bounds property DBSingleClientW-PT-d1m08-UpperBounds-10 :0 <= i5.u16.l1235 <= 5
FORMULA DBSingleClientW-PT-d1m08-UpperBounds-10 5 TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
DBSingleClientW-PT-d1m08-UpperBounds-10,0,88.3573,1587944,1,0,524722,416359,520,1.08971e+07,207,1.36919e+07,3103
Total runtime 397307 ms.

BK_STOP 1779526080726

--------------------
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="DBSingleClientW-PT-d1m08"
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 DBSingleClientW-PT-d1m08, 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 r095-smll-177946996300022"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/DBSingleClientW-PT-d1m08.tgz
mv DBSingleClientW-PT-d1m08 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 ;