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.r034-tall-177946841900341.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 itstools
Input is BugTracking-PT-q3m008, examination is UpperBounds
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r034-tall-177946841900341
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 16M
-rw-r--r-- 1 mcc users 8.4K Mar 5 17:22 CTLCardinality.txt
-rw-r--r-- 1 mcc users 73K Mar 5 17:22 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.2K Mar 5 17:21 CTLFireability.txt
-rw-r--r-- 1 mcc users 44K Mar 5 17:21 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.3K Mar 15 07:38 LTLCardinality.txt
-rw-r--r-- 1 mcc users 25K Mar 15 07:38 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.4K Mar 15 07:38 LTLFireability.txt
-rw-r--r-- 1 mcc users 17K Mar 15 07:38 LTLFireability.xml
-rw-r--r-- 1 mcc users 12K Mar 5 17:24 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 95K Mar 5 17:24 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 11K Mar 5 17:23 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 93K Mar 5 17:23 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.8K Mar 15 07:38 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.9K Mar 15 07:38 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 equiv_col
-rw-r--r-- 1 mcc users 7 Mar 3 18:30 instance
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 iscolored
-rw-r--r-- 1 mcc users 16M 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 BugTracking-PT-q3m008-UpperBounds-00
FORMULA_NAME BugTracking-PT-q3m008-UpperBounds-01
FORMULA_NAME BugTracking-PT-q3m008-UpperBounds-02
FORMULA_NAME BugTracking-PT-q3m008-UpperBounds-03
FORMULA_NAME BugTracking-PT-q3m008-UpperBounds-04
FORMULA_NAME BugTracking-PT-q3m008-UpperBounds-05
FORMULA_NAME BugTracking-PT-q3m008-UpperBounds-06
FORMULA_NAME BugTracking-PT-q3m008-UpperBounds-07
FORMULA_NAME BugTracking-PT-q3m008-UpperBounds-08
FORMULA_NAME BugTracking-PT-q3m008-UpperBounds-09
FORMULA_NAME BugTracking-PT-q3m008-UpperBounds-10
FORMULA_NAME BugTracking-PT-q3m008-UpperBounds-11
FORMULA_NAME BugTracking-PT-q3m008-UpperBounds-12
FORMULA_NAME BugTracking-PT-q3m008-UpperBounds-13
FORMULA_NAME BugTracking-PT-q3m008-UpperBounds-14
FORMULA_NAME BugTracking-PT-q3m008-UpperBounds-15

=== Now, execution of the tool begins

BK_START 1779584691853

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=UpperBounds
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=BugTracking-PT-q3m008
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
UpperBounds PT
Running Version 202604301425
[2026-05-24 01:04:52] [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]
[2026-05-24 01:04:52] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-24 01:04:53] [INFO ] Load time of PNML (sax parser for PT used): 822 ms
[2026-05-24 01:04:53] [INFO ] Transformed 754 places.
[2026-05-24 01:04:53] [INFO ] Transformed 27370 transitions.
[2026-05-24 01:04:53] [INFO ] Parsed PT model containing 754 places and 27370 transitions and 136172 arcs in 998 ms.
Parsed 16 properties from file /home/mcc/execution/UpperBounds.xml in 7 ms.
Deduced a syphon composed of 514 places in 108 ms
Reduce places removed 514 places and 24601 transitions.
FORMULA BugTracking-PT-q3m008-UpperBounds-00 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA BugTracking-PT-q3m008-UpperBounds-02 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA BugTracking-PT-q3m008-UpperBounds-04 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA BugTracking-PT-q3m008-UpperBounds-05 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA BugTracking-PT-q3m008-UpperBounds-06 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA BugTracking-PT-q3m008-UpperBounds-07 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA BugTracking-PT-q3m008-UpperBounds-09 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA BugTracking-PT-q3m008-UpperBounds-11 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA BugTracking-PT-q3m008-UpperBounds-12 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA BugTracking-PT-q3m008-UpperBounds-15 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
Current structural bounds on expressions (Initially) : Max Seen:[0, 0, 0, 0, 0, 0] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (Before main loop) : Max Seen:[0, 0, 0, 0, 0, 0] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-6538887257021235988.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-1078521594872249937.kers'
[2026-05-24 01:04:54] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-6538887257021235988.kers, --Pflows, --basisKERS=/tmp/petrispot-output-1078521594872249937.kers]
Normalized transition count is 2642 out of 2769 initially.
Culled 0 columns in 2 ms.
// Phase 1: matrix 2642 rows 240 cols 12480 entries
Finished phase 1 with 230 SingleSign rule and 0 generalized
[2026-05-24 01:04:54] [INFO ] Computed 10 invariants in 12 ms
Computed 10 P flows in 12 ms.
Exported basis to /tmp/petrispot-output-1078521594872249937.kers
Total runtime 15 ms.
Current structural bounds on expressions (after invariants) : Max Seen:[0, 0, 0, 0, 0, 0] Max Struct:[1, 1, +inf, +inf, +inf, 1]
RANDOM walk for 10000 steps (64 resets) in 107 ms. (92 steps per ms)
FORMULA BugTracking-PT-q3m008-UpperBounds-14 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA BugTracking-PT-q3m008-UpperBounds-01 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 40004 steps (45 resets) in 170 ms. (233 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0, 0, 0, 0] Max Struct:[1, +inf, +inf, +inf]
[2026-05-24 01:04:54] [INFO ] Flow matrix only has 2642 transitions (discarded 127 similar events)
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-15352713951117083165.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-14506508293477918069.kers'
[2026-05-24 01:04:54] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-15352713951117083165.kers, --Pflows, --basisKERS=/tmp/petrispot-output-14506508293477918069.kers]
Culled 0 columns in 1 ms.
// Phase 1: matrix 2642 rows 240 cols 12480 entries
Finished phase 1 with 230 SingleSign rule and 0 generalized
[2026-05-24 01:04:54] [INFO ] Computed 10 invariants in 8 ms
Computed 10 P flows in 9 ms.
Exported basis to /tmp/petrispot-output-14506508293477918069.kers
Total runtime 13 ms.
[2026-05-24 01:04:54] [INFO ] [Real]Absence check using 10 positive place invariants in 10 ms returned sat
[2026-05-24 01:04:55] [INFO ] [Real]Absence check using state equation in 481 ms returned sat
[2026-05-24 01:04:55] [INFO ] State equation strengthened by 255 read => feed constraints.
[2026-05-24 01:04:55] [INFO ] [Real]Added 255 Read/Feed constraints in 39 ms returned sat
[2026-05-24 01:04:55] [INFO ] Solution in real domain found non-integer solution.
[2026-05-24 01:04:55] [INFO ] [Nat]Absence check using 10 positive place invariants in 9 ms returned sat
[2026-05-24 01:04:56] [INFO ] [Nat]Absence check using state equation in 378 ms returned sat
[2026-05-24 01:04:56] [INFO ] [Nat]Added 255 Read/Feed constraints in 129 ms returned sat
[2026-05-24 01:04:56] [INFO ] Computed and/alt/rep : 355/1401/355 causal constraints (skipped 2285 transitions) in 264 ms.
[2026-05-24 01:04:56] [INFO ] Added : 6 causal constraints over 2 iterations in 663 ms. Result :sat
Minimization took 1294 ms.
[2026-05-24 01:04:58] [INFO ] [Real]Absence check using 10 positive place invariants in 5 ms returned sat
[2026-05-24 01:04:58] [INFO ] [Real]Absence check using state equation in 410 ms returned sat
[2026-05-24 01:04:58] [INFO ] [Real]Added 255 Read/Feed constraints in 49 ms returned sat
[2026-05-24 01:04:58] [INFO ] Solution in real domain found non-integer solution.
[2026-05-24 01:04:58] [INFO ] [Nat]Absence check using 10 positive place invariants in 3 ms returned sat
[2026-05-24 01:04:59] [INFO ] [Nat]Absence check using state equation in 388 ms returned sat
[2026-05-24 01:04:59] [INFO ] [Nat]Added 255 Read/Feed constraints in 116 ms returned sat
[2026-05-24 01:05:00] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 683 ms
[2026-05-24 01:05:00] [INFO ] Computed and/alt/rep : 355/1401/355 causal constraints (skipped 2285 transitions) in 150 ms.
[2026-05-24 01:05:01] [INFO ] Trap strengthening (SAT) tested/added 4/3 trap constraints in 1472 ms
[2026-05-24 01:05:02] [INFO ] Added : 4 causal constraints over 1 iterations in 1964 ms. Result :sat
Minimization took 741 ms.
[2026-05-24 01:05:02] [INFO ] [Real]Absence check using 10 positive place invariants in 4 ms returned sat
[2026-05-24 01:05:03] [INFO ] [Real]Absence check using state equation in 366 ms returned sat
[2026-05-24 01:05:03] [INFO ] Solution in real domain found non-integer solution.
[2026-05-24 01:05:03] [INFO ] [Nat]Absence check using 10 positive place invariants in 4 ms returned sat
[2026-05-24 01:05:03] [INFO ] [Nat]Absence check using state equation in 356 ms returned sat
[2026-05-24 01:05:03] [INFO ] [Nat]Added 255 Read/Feed constraints in 111 ms returned sat
[2026-05-24 01:05:04] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 303 ms
[2026-05-24 01:05:04] [INFO ] Computed and/alt/rep : 355/1401/355 causal constraints (skipped 2285 transitions) in 139 ms.
[2026-05-24 01:05:04] [INFO ] Added : 4 causal constraints over 1 iterations in 368 ms. Result :sat
Minimization took 656 ms.
[2026-05-24 01:05:05] [INFO ] [Real]Absence check using 10 positive place invariants in 4 ms returned sat
[2026-05-24 01:05:05] [INFO ] [Real]Absence check using state equation in 392 ms returned sat
[2026-05-24 01:05:05] [INFO ] Solution in real domain found non-integer solution.
[2026-05-24 01:05:05] [INFO ] [Nat]Absence check using 10 positive place invariants in 4 ms returned sat
[2026-05-24 01:05:05] [INFO ] [Nat]Absence check using state equation in 374 ms returned sat
[2026-05-24 01:05:06] [INFO ] [Nat]Added 255 Read/Feed constraints in 134 ms returned sat
[2026-05-24 01:05:06] [INFO ] Computed and/alt/rep : 355/1401/355 causal constraints (skipped 2285 transitions) in 139 ms.
[2026-05-24 01:05:06] [INFO ] Added : 4 causal constraints over 1 iterations in 377 ms. Result :sat
Minimization took 649 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0, 0, 0, 0] Max Struct:[1, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0, 0, 0, 0] Max Struct:[1, +inf, +inf, +inf]
Support contains 4 out of 240 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 240/240 places, 2769/2769 transitions.
Graph (complete) has 3422 edges and 240 vertex of which 238 are kept as prefixes of interest. Removing 2 places using SCC suffix rule.8 ms
Discarding 2 places :
Also discarding 0 output transitions
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 2 place count 237 transition count 2750
Iterating global reduction 0 with 1 rules applied. Total rules applied 3 place count 237 transition count 2750
Performed 2 Post agglomeration using F-continuation condition.Transition count delta: -3
Deduced a syphon composed of 2 places in 2 ms
Reduce places removed 2 places and 0 transitions.
Iterating global reduction 0 with 4 rules applied. Total rules applied 7 place count 235 transition count 2753
Free-agglomeration rule applied 6 times.
Iterating global reduction 0 with 6 rules applied. Total rules applied 13 place count 235 transition count 2747
Reduce places removed 6 places and 0 transitions.
Iterating post reduction 0 with 6 rules applied. Total rules applied 19 place count 229 transition count 2747
Applied a total of 19 rules in 252 ms. Remains 229 /240 variables (removed 11) and now considering 2747/2769 (removed 22) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 265 ms. Remains : 229/240 places, 2747/2769 transitions.
[2026-05-24 01:05:07] [INFO ] Flow matrix only has 2618 transitions (discarded 129 similar events)
findPositiveTsemiflow completed in 348 ms - Found solution {4=1, 1722=1} and attempted to minimize in 0 ms success -> {0=1, 1722=1}
Current structural bounds on expressions (after cover walk) : Max Seen:[0, 0, 0, 0] Max Struct:[1, +inf, +inf, +inf]
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-10926998985626273439.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-6142568823059963211.kers'
[2026-05-24 01:05:18] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-10926998985626273439.kers, --Pflows, --basisKERS=/tmp/petrispot-output-6142568823059963211.kers]
Normalized transition count is 2618 out of 2747 initially.
Culled 0 columns in 4 ms.
// Phase 1: matrix 2618 rows 229 cols 12397 entries
Finished phase 1 with 221 SingleSign rule and 0 generalized
[2026-05-24 01:05:18] [INFO ] Computed 8 invariants in 18 ms
Computed 8 P flows in 18 ms.
Exported basis to /tmp/petrispot-output-6142568823059963211.kers
Total runtime 25 ms.
Current structural bounds on expressions (after invariants) : Max Seen:[0, 0, 0, 0] Max Struct:[1, +inf, +inf, +inf]
RANDOM walk for 1000002 steps (2 resets) in 5991 ms. (166 steps per ms)
BEST_FIRST walk for 4000002 steps (9 resets) in 9453 ms. (423 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0, 0, 0, 0] Max Struct:[1, +inf, +inf, +inf]
[2026-05-24 01:05:33] [INFO ] Flow matrix only has 2618 transitions (discarded 129 similar events)
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-316155587986360636.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-4770926455165381991.kers'
[2026-05-24 01:05:33] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-316155587986360636.kers, --Pflows, --basisKERS=/tmp/petrispot-output-4770926455165381991.kers]
Culled 0 columns in 1 ms.
// Phase 1: matrix 2618 rows 229 cols 12397 entries
Finished phase 1 with 221 SingleSign rule and 0 generalized
[2026-05-24 01:05:33] [INFO ] Computed 8 invariants in 8 ms
Computed 8 P flows in 8 ms.
Exported basis to /tmp/petrispot-output-4770926455165381991.kers
Total runtime 14 ms.
[2026-05-24 01:05:33] [INFO ] [Real]Absence check using 8 positive place invariants in 3 ms returned sat
[2026-05-24 01:05:34] [INFO ] [Real]Absence check using state equation in 389 ms returned sat
[2026-05-24 01:05:34] [INFO ] State equation strengthened by 241 read => feed constraints.
[2026-05-24 01:05:34] [INFO ] [Real]Added 241 Read/Feed constraints in 52 ms returned sat
[2026-05-24 01:05:34] [INFO ] Solution in real domain found non-integer solution.
[2026-05-24 01:05:34] [INFO ] [Nat]Absence check using 8 positive place invariants in 3 ms returned sat
[2026-05-24 01:05:34] [INFO ] [Nat]Absence check using state equation in 378 ms returned sat
[2026-05-24 01:05:34] [INFO ] [Nat]Added 241 Read/Feed constraints in 111 ms returned sat
[2026-05-24 01:05:35] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 442 ms
[2026-05-24 01:05:35] [INFO ] Computed and/alt/rep : 342/1316/342 causal constraints (skipped 2275 transitions) in 153 ms.
[2026-05-24 01:05:35] [INFO ] Added : 3 causal constraints over 1 iterations in 405 ms. Result :sat
Minimization took 1917 ms.
[2026-05-24 01:05:37] [INFO ] [Real]Absence check using 8 positive place invariants in 3 ms returned sat
[2026-05-24 01:05:38] [INFO ] [Real]Absence check using state equation in 396 ms returned sat
[2026-05-24 01:05:38] [INFO ] [Real]Added 241 Read/Feed constraints in 38 ms returned sat
[2026-05-24 01:05:38] [INFO ] Solution in real domain found non-integer solution.
[2026-05-24 01:05:38] [INFO ] [Nat]Absence check using 8 positive place invariants in 3 ms returned sat
[2026-05-24 01:05:38] [INFO ] [Nat]Absence check using state equation in 365 ms returned sat
[2026-05-24 01:05:38] [INFO ] [Nat]Added 241 Read/Feed constraints in 131 ms returned sat
[2026-05-24 01:05:39] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 314 ms
[2026-05-24 01:05:39] [INFO ] Computed and/alt/rep : 342/1316/342 causal constraints (skipped 2275 transitions) in 156 ms.
[2026-05-24 01:05:39] [INFO ] Added : 2 causal constraints over 1 iterations in 401 ms. Result :sat
Minimization took 1791 ms.
[2026-05-24 01:05:41] [INFO ] [Real]Absence check using 8 positive place invariants in 3 ms returned sat
[2026-05-24 01:05:41] [INFO ] [Real]Absence check using state equation in 405 ms returned sat
[2026-05-24 01:05:41] [INFO ] [Real]Added 241 Read/Feed constraints in 42 ms returned sat
[2026-05-24 01:05:41] [INFO ] Solution in real domain found non-integer solution.
[2026-05-24 01:05:41] [INFO ] [Nat]Absence check using 8 positive place invariants in 15 ms returned sat
[2026-05-24 01:05:42] [INFO ] [Nat]Absence check using state equation in 363 ms returned sat
[2026-05-24 01:05:42] [INFO ] [Nat]Added 241 Read/Feed constraints in 112 ms returned sat
[2026-05-24 01:05:43] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 995 ms
[2026-05-24 01:05:43] [INFO ] Computed and/alt/rep : 342/1316/342 causal constraints (skipped 2275 transitions) in 148 ms.
[2026-05-24 01:05:43] [INFO ] Added : 3 causal constraints over 1 iterations in 391 ms. Result :sat
Minimization took 1831 ms.
[2026-05-24 01:05:45] [INFO ] [Real]Absence check using 8 positive place invariants in 3 ms returned sat
[2026-05-24 01:05:46] [INFO ] [Real]Absence check using state equation in 348 ms returned sat
[2026-05-24 01:05:46] [INFO ] [Real]Added 241 Read/Feed constraints in 35 ms returned sat
[2026-05-24 01:05:46] [INFO ] Solution in real domain found non-integer solution.
[2026-05-24 01:05:46] [INFO ] [Nat]Absence check using 8 positive place invariants in 2 ms returned sat
[2026-05-24 01:05:46] [INFO ] [Nat]Absence check using state equation in 383 ms returned sat
[2026-05-24 01:05:46] [INFO ] [Nat]Added 241 Read/Feed constraints in 133 ms returned sat
[2026-05-24 01:05:47] [INFO ] Trap strengthening (SAT) tested/added 4/3 trap constraints in 870 ms
[2026-05-24 01:05:47] [INFO ] Computed and/alt/rep : 342/1316/342 causal constraints (skipped 2275 transitions) in 150 ms.
[2026-05-24 01:05:48] [INFO ] Added : 1 causal constraints over 1 iterations in 386 ms. Result :sat
Minimization took 1918 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0, 0, 0, 0] Max Struct:[1, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0, 0, 0, 0] Max Struct:[1, +inf, +inf, +inf]
Support contains 4 out of 229 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 229/229 places, 2747/2747 transitions.
Applied a total of 0 rules in 38 ms. Remains 229 /229 variables (removed 0) and now considering 2747/2747 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 39 ms. Remains : 229/229 places, 2747/2747 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 229/229 places, 2747/2747 transitions.
Applied a total of 0 rules in 38 ms. Remains 229 /229 variables (removed 0) and now considering 2747/2747 (removed 0) transitions.
[2026-05-24 01:05:50] [INFO ] Flow matrix only has 2618 transitions (discarded 129 similar events)
[2026-05-24 01:05:50] [INFO ] Invariant cache hit.
[2026-05-24 01:05:50] [INFO ] Implicit Places using invariants in 329 ms returned []
[2026-05-24 01:05:50] [INFO ] Flow matrix only has 2618 transitions (discarded 129 similar events)
[2026-05-24 01:05:50] [INFO ] Invariant cache hit.
[2026-05-24 01:05:51] [INFO ] State equation strengthened by 241 read => feed constraints.
[2026-05-24 01:05:54] [INFO ] Implicit Places using invariants and state equation in 3809 ms returned []
Implicit Place search using SMT with State Equation took 4153 ms to find 0 implicit places.
[2026-05-24 01:05:54] [INFO ] Redundant transitions in 219 ms returned []
Running 2746 sub problems to find dead transitions.
[2026-05-24 01:05:54] [INFO ] Flow matrix only has 2618 transitions (discarded 129 similar events)
[2026-05-24 01:05:54] [INFO ] Invariant cache hit.
[2026-05-24 01:05:54] [INFO ] State equation strengthened by 241 read => feed constraints.
Excessive predecessor constraint size, skipping predecessor.
At refinement iteration 0 (INCLUDED_ONLY) 0/229 variables, 8/8 constraints. Problems are: Problem set: 0 solved, 2746 unsolved
Problem TDEAD1480 is UNSAT
Problem TDEAD1481 is UNSAT
Problem TDEAD1482 is UNSAT
Problem TDEAD1483 is UNSAT
Problem TDEAD1485 is UNSAT
Problem TDEAD1486 is UNSAT
Problem TDEAD1489 is UNSAT
Problem TDEAD1490 is UNSAT
Problem TDEAD1491 is UNSAT
Problem TDEAD1492 is UNSAT
Problem TDEAD1495 is UNSAT
Problem TDEAD1496 is UNSAT
Problem TDEAD1497 is UNSAT
Problem TDEAD1498 is UNSAT
Problem TDEAD1501 is UNSAT
Problem TDEAD1502 is UNSAT
Problem TDEAD1503 is UNSAT
Problem TDEAD1504 is UNSAT
Problem TDEAD1506 is UNSAT
Problem TDEAD1507 is UNSAT
Problem TDEAD1510 is UNSAT
Problem TDEAD1511 is UNSAT
Problem TDEAD1512 is UNSAT
Problem TDEAD1513 is UNSAT
Problem TDEAD1516 is UNSAT
Problem TDEAD1517 is UNSAT
Problem TDEAD1518 is UNSAT
Problem TDEAD1519 is UNSAT
Problem TDEAD1562 is UNSAT
Problem TDEAD1563 is UNSAT
Problem TDEAD1564 is UNSAT
Problem TDEAD1565 is UNSAT
Problem TDEAD1566 is UNSAT
Problem TDEAD1567 is UNSAT
Problem TDEAD1568 is UNSAT
Problem TDEAD1569 is UNSAT
Problem TDEAD1570 is UNSAT
Problem TDEAD1571 is UNSAT
Problem TDEAD1572 is UNSAT
Problem TDEAD1573 is UNSAT
Problem TDEAD1574 is UNSAT
Problem TDEAD1575 is UNSAT
Problem TDEAD1576 is UNSAT
Problem TDEAD1577 is UNSAT
Problem TDEAD1578 is UNSAT
Problem TDEAD1579 is UNSAT
Problem TDEAD1580 is UNSAT
Problem TDEAD1581 is UNSAT
Problem TDEAD1582 is UNSAT
Problem TDEAD1583 is UNSAT
Problem TDEAD1584 is UNSAT
Problem TDEAD1585 is UNSAT
Problem TDEAD1586 is UNSAT
Problem TDEAD1587 is UNSAT
Problem TDEAD1588 is UNSAT
Problem TDEAD1589 is UNSAT
Problem TDEAD1590 is UNSAT
Problem TDEAD1591 is UNSAT
Problem TDEAD1592 is UNSAT
Problem TDEAD1593 is UNSAT
Problem TDEAD1594 is UNSAT
Problem TDEAD1595 is UNSAT
Problem TDEAD1596 is UNSAT
Problem TDEAD1597 is UNSAT
Problem TDEAD1598 is UNSAT
Problem TDEAD1599 is UNSAT
Problem TDEAD1600 is UNSAT
Problem TDEAD1601 is UNSAT
Problem TDEAD1602 is UNSAT
Problem TDEAD1603 is UNSAT
Problem TDEAD1604 is UNSAT
Problem TDEAD1605 is UNSAT
Problem TDEAD1606 is UNSAT
Problem TDEAD1607 is UNSAT
Problem TDEAD1608 is UNSAT
Problem TDEAD1609 is UNSAT
Problem TDEAD1610 is UNSAT
Problem TDEAD1611 is UNSAT
Problem TDEAD1612 is UNSAT
Problem TDEAD1613 is UNSAT
Problem TDEAD1614 is UNSAT
Problem TDEAD1615 is UNSAT
Problem TDEAD1616 is UNSAT
Problem TDEAD1617 is UNSAT
Problem TDEAD1618 is UNSAT
Problem TDEAD1619 is UNSAT
Problem TDEAD1620 is UNSAT
Problem TDEAD1621 is UNSAT
Problem TDEAD1622 is UNSAT
Problem TDEAD1623 is UNSAT
Problem TDEAD1624 is UNSAT
Problem TDEAD1625 is UNSAT
Problem TDEAD1626 is UNSAT
Problem TDEAD1627 is UNSAT
Problem TDEAD1628 is UNSAT
Problem TDEAD1629 is UNSAT
Problem TDEAD1630 is UNSAT
Problem TDEAD1631 is UNSAT
Problem TDEAD1632 is UNSAT
Problem TDEAD1633 is UNSAT
Problem TDEAD1634 is UNSAT
Problem TDEAD1635 is UNSAT
Problem TDEAD1636 is UNSAT
Problem TDEAD1637 is UNSAT
Problem TDEAD1638 is UNSAT
Problem TDEAD1639 is UNSAT
Problem TDEAD1640 is UNSAT
Problem TDEAD1641 is UNSAT
Problem TDEAD1642 is UNSAT
Problem TDEAD1643 is UNSAT
Problem TDEAD1644 is UNSAT
Problem TDEAD1645 is UNSAT
Problem TDEAD1716 is UNSAT
Problem TDEAD1717 is UNSAT
Problem TDEAD1718 is UNSAT
Problem TDEAD1719 is UNSAT
Problem TDEAD1720 is UNSAT
Problem TDEAD1721 is UNSAT
Problem TDEAD1722 is UNSAT
Problem TDEAD1723 is UNSAT
Problem TDEAD1724 is UNSAT
Problem TDEAD1725 is UNSAT
Problem TDEAD1726 is UNSAT
Problem TDEAD1727 is UNSAT
Problem TDEAD1728 is UNSAT
Problem TDEAD1729 is UNSAT
Problem TDEAD1730 is UNSAT
Problem TDEAD1731 is UNSAT
Problem TDEAD1732 is UNSAT
Problem TDEAD1733 is UNSAT
Problem TDEAD1734 is UNSAT
Problem TDEAD1735 is UNSAT
Problem TDEAD1736 is UNSAT
Problem TDEAD1737 is UNSAT
Problem TDEAD1738 is UNSAT
Problem TDEAD1739 is UNSAT
Problem TDEAD1740 is UNSAT
Problem TDEAD1741 is UNSAT
Problem TDEAD1742 is UNSAT
Problem TDEAD1743 is UNSAT
Problem TDEAD1747 is UNSAT
Problem TDEAD1748 is UNSAT
Problem TDEAD1749 is UNSAT
Problem TDEAD1750 is UNSAT
Problem TDEAD1751 is UNSAT
Problem TDEAD1752 is UNSAT
Problem TDEAD1753 is UNSAT
Problem TDEAD1754 is UNSAT
Problem TDEAD1755 is UNSAT
Problem TDEAD1756 is UNSAT
Problem TDEAD1757 is UNSAT
Problem TDEAD1758 is UNSAT
Problem TDEAD1759 is UNSAT
Problem TDEAD1760 is UNSAT
Problem TDEAD1763 is UNSAT
Problem TDEAD1764 is UNSAT
Problem TDEAD1766 is UNSAT
Problem TDEAD1767 is UNSAT
Problem TDEAD1768 is UNSAT
Problem TDEAD1769 is UNSAT
Problem TDEAD1770 is UNSAT
Problem TDEAD1771 is UNSAT
Problem TDEAD1772 is UNSAT
Problem TDEAD1773 is UNSAT
Problem TDEAD1774 is UNSAT
Problem TDEAD1775 is UNSAT
Problem TDEAD1776 is UNSAT
Problem TDEAD1780 is UNSAT
Problem TDEAD1781 is UNSAT
Problem TDEAD1782 is UNSAT
Problem TDEAD1783 is UNSAT
Problem TDEAD1785 is UNSAT
Problem TDEAD1786 is UNSAT
Problem TDEAD1790 is UNSAT
Problem TDEAD1791 is UNSAT
Problem TDEAD1792 is UNSAT
Problem TDEAD1793 is UNSAT
Problem TDEAD1794 is UNSAT
Problem TDEAD1795 is UNSAT
Problem TDEAD1796 is UNSAT
Problem TDEAD1797 is UNSAT
Problem TDEAD1798 is UNSAT
Problem TDEAD1801 is UNSAT
Problem TDEAD1802 is UNSAT
Problem TDEAD1804 is UNSAT
Problem TDEAD1805 is UNSAT
Problem TDEAD1806 is UNSAT
Problem TDEAD1807 is UNSAT
Problem TDEAD1808 is UNSAT
Problem TDEAD1809 is UNSAT
Problem TDEAD1810 is UNSAT
Problem TDEAD1811 is UNSAT
Problem TDEAD1812 is UNSAT
Problem TDEAD1813 is UNSAT
Problem TDEAD1814 is UNSAT
Problem TDEAD1815 is UNSAT
Problem TDEAD1816 is UNSAT
Problem TDEAD1817 is UNSAT
Problem TDEAD1818 is UNSAT
Problem TDEAD1819 is UNSAT
Problem TDEAD2709 is UNSAT
Problem TDEAD2710 is UNSAT
Problem TDEAD2720 is UNSAT
Problem TDEAD2721 is UNSAT
Problem TDEAD2732 is UNSAT
Problem TDEAD2733 is UNSAT
Problem TDEAD2743 is UNSAT
Problem TDEAD2744 is UNSAT
Problem TDEAD161 is UNSAT
Problem TDEAD162 is UNSAT
Problem TDEAD163 is UNSAT
Problem TDEAD164 is UNSAT
Problem TDEAD165 is UNSAT
Problem TDEAD169 is UNSAT
Problem TDEAD170 is UNSAT
Problem TDEAD171 is UNSAT
Problem TDEAD1456 is UNSAT
Problem TDEAD1457 is UNSAT
Problem TDEAD1458 is UNSAT
Problem TDEAD1459 is UNSAT
Problem TDEAD1460 is UNSAT
Problem TDEAD1461 is UNSAT
Problem TDEAD1462 is UNSAT
Problem TDEAD1467 is UNSAT
Problem TDEAD1468 is UNSAT
Problem TDEAD1469 is UNSAT
Problem TDEAD1470 is UNSAT
Problem TDEAD1471 is UNSAT
Problem TDEAD1472 is UNSAT
Problem TDEAD1473 is UNSAT
Problem TDEAD1474 is UNSAT
Problem TDEAD1475 is UNSAT
Problem TDEAD1476 is UNSAT
Problem TDEAD1477 is UNSAT
At refinement iteration 1 (INCLUDED_ONLY) 0/229 variables, 8/16 constraints. Problems are: Problem set: 234 solved, 2512 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 229/2847 variables, and 16 constraints, problems are : Problem set: 234 solved, 2512 unsolved in 30056 ms.
Refiners :[Positive P Invariants (semi-flows): 8/8 constraints, State Equation: 0/229 constraints, ReadFeed: 0/241 constraints, PredecessorRefiner: 2746/1184 constraints, Known Traps: 8/8 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 234 solved, 2512 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/221 variables, 7/7 constraints. Problems are: Problem set: 234 solved, 2512 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/221 variables, 8/15 constraints. Problems are: Problem set: 234 solved, 2512 unsolved
Problem TDEAD1433 is UNSAT
Problem TDEAD1434 is UNSAT
Problem TDEAD1435 is UNSAT
Problem TDEAD1436 is UNSAT
Problem TDEAD1437 is UNSAT
Problem TDEAD1438 is UNSAT
Problem TDEAD1439 is UNSAT
Problem TDEAD1440 is UNSAT
Problem TDEAD1441 is UNSAT
Problem TDEAD1442 is UNSAT
Problem TDEAD1443 is UNSAT
Problem TDEAD1444 is UNSAT
Problem TDEAD1445 is UNSAT
Problem TDEAD1446 is UNSAT
Problem TDEAD1447 is UNSAT
Problem TDEAD1448 is UNSAT
Problem TDEAD1449 is UNSAT
Problem TDEAD1450 is UNSAT
At refinement iteration 2 (INCLUDED_ONLY) 0/221 variables, 1/16 constraints. Problems are: Problem set: 252 solved, 2494 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 221/2847 variables, and 16 constraints, problems are : Problem set: 252 solved, 2494 unsolved in 30043 ms.
Refiners :[Positive P Invariants (semi-flows): 7/8 constraints, State Equation: 0/229 constraints, ReadFeed: 0/241 constraints, PredecessorRefiner: 1562/1184 constraints, Known Traps: 9/9 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 64473ms problems are : Problem set: 252 solved, 2494 unsolved
Search for dead transitions found 252 dead transitions in 64511ms
Found 252 dead transitions using SMT.
Drop transitions (Dead Transitions using SMT only with invariants) removed 252 transitions
Dead transitions reduction (with SMT) removed 252 transitions
Starting structural reductions in REACHABILITY mode, iteration 1 : 229/229 places, 2495/2747 transitions.
Graph (complete) has 3016 edges and 229 vertex of which 221 are kept as prefixes of interest. Removing 8 places using SCC suffix rule.2 ms
Discarding 8 places :
Also discarding 0 output transitions
Reduce places removed 30 places and 650 transitions.
Iterating post reduction 0 with 30 rules applied. Total rules applied 31 place count 191 transition count 1845
Reduce places removed 15 places and 271 transitions.
Iterating post reduction 1 with 15 rules applied. Total rules applied 46 place count 176 transition count 1574
Reduce places removed 8 places and 174 transitions.
Iterating post reduction 2 with 8 rules applied. Total rules applied 54 place count 168 transition count 1400
Reduce places removed 8 places and 119 transitions.
Iterating post reduction 3 with 8 rules applied. Total rules applied 62 place count 160 transition count 1281
Reduce places removed 1 places and 17 transitions.
Iterating post reduction 4 with 1 rules applied. Total rules applied 63 place count 159 transition count 1264
Discarding 3 places :
Symmetric choice reduction at 5 with 3 rule applications. Total rules 66 place count 156 transition count 1222
Deduced a syphon composed of 19 places in 1 ms
Reduce places removed 17 places and 270 transitions.
Iterating global reduction 5 with 20 rules applied. Total rules applied 86 place count 139 transition count 952
Deduced a syphon composed of 2 places in 1 ms
Applied a total of 86 rules in 44 ms. Remains 139 /229 variables (removed 90) and now considering 952/2495 (removed 1543) transitions.
[2026-05-24 01:06:59] [INFO ] Flow matrix only has 902 transitions (discarded 50 similar events)
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-6078126756831347251.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-13883944884864150651.kers'
[2026-05-24 01:06:59] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-6078126756831347251.kers, --Pflows, --basisKERS=/tmp/petrispot-output-13883944884864150651.kers]
Culling trivial invariants: removing 2 columns.
Culled 2 columns in 0 ms.
// Phase 1: matrix 902 rows 137 cols 4158 entries
Finished phase 1 with 130 SingleSign rule and 0 generalized
[2026-05-24 01:06:59] [INFO ] Computed 9 invariants in 3 ms
Computed 9 P flows in 4 ms.
Exported basis to /tmp/petrispot-output-13883944884864150651.kers
Total runtime 5 ms.
[2026-05-24 01:06:59] [INFO ] Implicit Places using invariants in 140 ms returned []
[2026-05-24 01:06:59] [INFO ] Flow matrix only has 902 transitions (discarded 50 similar events)
[2026-05-24 01:06:59] [INFO ] Invariant cache hit.
[2026-05-24 01:06:59] [INFO ] State equation strengthened by 112 read => feed constraints.
[2026-05-24 01:07:00] [INFO ] Implicit Places using invariants and state equation in 692 ms returned []
Implicit Place search using SMT with State Equation took 834 ms to find 0 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 2 : 139/229 places, 952/2747 transitions.
Finished structural reductions in REACHABILITY mode , in 2 iterations and 69856 ms. Remains : 139/229 places, 952/2747 transitions.
Deduced a syphon composed of 2 places in 2 ms
Reduce places removed 2 places and 0 transitions.
FORMULA BugTracking-PT-q3m008-UpperBounds-13 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA BugTracking-PT-q3m008-UpperBounds-10 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
Current structural bounds on expressions (after structural reductions) : Max Seen:[0, 0] Max Struct:[1, +inf]
[2026-05-24 01:07:00] [INFO ] Flow matrix only has 902 transitions (discarded 50 similar events)
findPositiveTsemiflow completed in 137 ms - Found solution {5=1, 75=1, 587=1, 862=1} and attempted to minimize in 0 ms success -> {1=1, 587=1}
Current structural bounds on expressions (after cover walk) : Max Seen:[0, 0] Max Struct:[1, +inf]
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-16187571735960364325.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-15274557835846424366.kers'
[2026-05-24 01:07:10] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-16187571735960364325.kers, --Pflows, --basisKERS=/tmp/petrispot-output-15274557835846424366.kers]
Normalized transition count is 902 out of 952 initially.
Culled 0 columns in 0 ms.
// Phase 1: matrix 902 rows 137 cols 4158 entries
Finished phase 1 with 130 SingleSign rule and 0 generalized
[2026-05-24 01:07:10] [INFO ] Computed 7 invariants in 7 ms
Computed 7 P flows in 8 ms.
Exported basis to /tmp/petrispot-output-15274557835846424366.kers
Total runtime 10 ms.
Current structural bounds on expressions (after invariants) : Max Seen:[0, 0] Max Struct:[1, +inf]
RANDOM walk for 1000001 steps (2 resets) in 2511 ms. (398 steps per ms)
BEST_FIRST walk for 2000002 steps (4 resets) in 2424 ms. (824 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0, 0] Max Struct:[1, +inf]
[2026-05-24 01:07:15] [INFO ] Flow matrix only has 902 transitions (discarded 50 similar events)
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-14506371127743007187.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-4916924375045612650.kers'
[2026-05-24 01:07:15] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-14506371127743007187.kers, --Pflows, --basisKERS=/tmp/petrispot-output-4916924375045612650.kers]
Culled 0 columns in 1 ms.
// Phase 1: matrix 902 rows 137 cols 4158 entries
Finished phase 1 with 130 SingleSign rule and 0 generalized
[2026-05-24 01:07:15] [INFO ] Computed 7 invariants in 6 ms
Computed 7 P flows in 7 ms.
Exported basis to /tmp/petrispot-output-4916924375045612650.kers
Total runtime 9 ms.
[2026-05-24 01:07:15] [INFO ] [Real]Absence check using 7 positive place invariants in 2 ms returned sat
[2026-05-24 01:07:15] [INFO ] [Real]Absence check using state equation in 125 ms returned sat
[2026-05-24 01:07:15] [INFO ] State equation strengthened by 112 read => feed constraints.
[2026-05-24 01:07:15] [INFO ] [Real]Added 112 Read/Feed constraints in 15 ms returned sat
[2026-05-24 01:07:15] [INFO ] Solution in real domain found non-integer solution.
[2026-05-24 01:07:15] [INFO ] [Nat]Absence check using 7 positive place invariants in 2 ms returned sat
[2026-05-24 01:07:15] [INFO ] [Nat]Absence check using state equation in 134 ms returned sat
[2026-05-24 01:07:15] [INFO ] [Nat]Added 112 Read/Feed constraints in 36 ms returned sat
[2026-05-24 01:07:16] [INFO ] Computed and/alt/rep : 228/837/228 causal constraints (skipped 673 transitions) in 53 ms.
[2026-05-24 01:07:16] [INFO ] Added : 3 causal constraints over 1 iterations in 150 ms. Result :sat
Minimization took 281 ms.
[2026-05-24 01:07:16] [INFO ] [Real]Absence check using 7 positive place invariants in 2 ms returned sat
[2026-05-24 01:07:16] [INFO ] [Real]Absence check using state equation in 137 ms returned sat
[2026-05-24 01:07:16] [INFO ] [Real]Added 112 Read/Feed constraints in 16 ms returned sat
[2026-05-24 01:07:16] [INFO ] Solution in real domain found non-integer solution.
[2026-05-24 01:07:16] [INFO ] [Nat]Absence check using 7 positive place invariants in 2 ms returned sat
[2026-05-24 01:07:16] [INFO ] [Nat]Absence check using state equation in 139 ms returned sat
[2026-05-24 01:07:16] [INFO ] [Nat]Added 112 Read/Feed constraints in 26 ms returned sat
[2026-05-24 01:07:17] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 356 ms
[2026-05-24 01:07:17] [INFO ] Computed and/alt/rep : 228/837/228 causal constraints (skipped 673 transitions) in 52 ms.
[2026-05-24 01:07:17] [INFO ] Added : 3 causal constraints over 1 iterations in 140 ms. Result :sat
Minimization took 253 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0, 0] Max Struct:[1, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0, 0] Max Struct:[1, +inf]
Support contains 2 out of 137 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 137/137 places, 952/952 transitions.
Applied a total of 0 rules in 17 ms. Remains 137 /137 variables (removed 0) and now considering 952/952 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 17 ms. Remains : 137/137 places, 952/952 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 137/137 places, 952/952 transitions.
Applied a total of 0 rules in 12 ms. Remains 137 /137 variables (removed 0) and now considering 952/952 (removed 0) transitions.
[2026-05-24 01:07:17] [INFO ] Flow matrix only has 902 transitions (discarded 50 similar events)
[2026-05-24 01:07:17] [INFO ] Invariant cache hit.
[2026-05-24 01:07:17] [INFO ] Implicit Places using invariants in 123 ms returned []
[2026-05-24 01:07:17] [INFO ] Flow matrix only has 902 transitions (discarded 50 similar events)
[2026-05-24 01:07:17] [INFO ] Invariant cache hit.
[2026-05-24 01:07:18] [INFO ] State equation strengthened by 112 read => feed constraints.
[2026-05-24 01:07:18] [INFO ] Implicit Places using invariants and state equation in 772 ms returned []
Implicit Place search using SMT with State Equation took 899 ms to find 0 implicit places.
[2026-05-24 01:07:18] [INFO ] Redundant transitions in 38 ms returned []
Running 951 sub problems to find dead transitions.
[2026-05-24 01:07:18] [INFO ] Flow matrix only has 902 transitions (discarded 50 similar events)
[2026-05-24 01:07:18] [INFO ] Invariant cache hit.
[2026-05-24 01:07:18] [INFO ] State equation strengthened by 112 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/137 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 951 unsolved
Problem TDEAD337 is UNSAT
Problem TDEAD338 is UNSAT
Problem TDEAD339 is UNSAT
Problem TDEAD340 is UNSAT
Problem TDEAD342 is UNSAT
Problem TDEAD343 is UNSAT
Problem TDEAD347 is UNSAT
Problem TDEAD348 is UNSAT
Problem TDEAD349 is UNSAT
Problem TDEAD350 is UNSAT
Problem TDEAD351 is UNSAT
Problem TDEAD352 is UNSAT
Problem TDEAD355 is UNSAT
Problem TDEAD356 is UNSAT
Problem TDEAD357 is UNSAT
Problem TDEAD358 is UNSAT
Problem TDEAD361 is UNSAT
Problem TDEAD362 is UNSAT
Problem TDEAD363 is UNSAT
Problem TDEAD364 is UNSAT
Problem TDEAD368 is UNSAT
Problem TDEAD369 is UNSAT
Problem TDEAD370 is UNSAT
Problem TDEAD371 is UNSAT
Problem TDEAD372 is UNSAT
Problem TDEAD373 is UNSAT
Problem TDEAD374 is UNSAT
Problem TDEAD375 is UNSAT
Problem TDEAD376 is UNSAT
Problem TDEAD377 is UNSAT
Problem TDEAD378 is UNSAT
Problem TDEAD379 is UNSAT
Problem TDEAD380 is UNSAT
Problem TDEAD381 is UNSAT
Problem TDEAD382 is UNSAT
Problem TDEAD383 is UNSAT
Problem TDEAD384 is UNSAT
Problem TDEAD385 is UNSAT
Problem TDEAD386 is UNSAT
Problem TDEAD387 is UNSAT
Problem TDEAD388 is UNSAT
Problem TDEAD389 is UNSAT
Problem TDEAD390 is UNSAT
Problem TDEAD391 is UNSAT
Problem TDEAD392 is UNSAT
Problem TDEAD393 is UNSAT
Problem TDEAD394 is UNSAT
Problem TDEAD395 is UNSAT
Problem TDEAD396 is UNSAT
Problem TDEAD397 is UNSAT
Problem TDEAD398 is UNSAT
Problem TDEAD399 is UNSAT
Problem TDEAD400 is UNSAT
Problem TDEAD401 is UNSAT
Problem TDEAD402 is UNSAT
Problem TDEAD403 is UNSAT
Problem TDEAD404 is UNSAT
Problem TDEAD405 is UNSAT
Problem TDEAD406 is UNSAT
Problem TDEAD407 is UNSAT
Problem TDEAD408 is UNSAT
Problem TDEAD409 is UNSAT
Problem TDEAD410 is UNSAT
Problem TDEAD411 is UNSAT
Problem TDEAD412 is UNSAT
Problem TDEAD413 is UNSAT
Problem TDEAD414 is UNSAT
Problem TDEAD415 is UNSAT
Problem TDEAD416 is UNSAT
Problem TDEAD417 is UNSAT
Problem TDEAD418 is UNSAT
Problem TDEAD419 is UNSAT
Problem TDEAD420 is UNSAT
Problem TDEAD421 is UNSAT
Problem TDEAD422 is UNSAT
Problem TDEAD423 is UNSAT
Problem TDEAD424 is UNSAT
Problem TDEAD425 is UNSAT
Problem TDEAD478 is UNSAT
Problem TDEAD479 is UNSAT
Problem TDEAD480 is UNSAT
Problem TDEAD481 is UNSAT
Problem TDEAD482 is UNSAT
Problem TDEAD483 is UNSAT
Problem TDEAD484 is UNSAT
Problem TDEAD485 is UNSAT
Problem TDEAD486 is UNSAT
Problem TDEAD487 is UNSAT
Problem TDEAD488 is UNSAT
Problem TDEAD489 is UNSAT
Problem TDEAD490 is UNSAT
Problem TDEAD491 is UNSAT
Problem TDEAD492 is UNSAT
Problem TDEAD493 is UNSAT
Problem TDEAD494 is UNSAT
Problem TDEAD495 is UNSAT
Problem TDEAD496 is UNSAT
Problem TDEAD497 is UNSAT
Problem TDEAD498 is UNSAT
Problem TDEAD499 is UNSAT
Problem TDEAD500 is UNSAT
Problem TDEAD501 is UNSAT
Problem TDEAD502 is UNSAT
Problem TDEAD503 is UNSAT
Problem TDEAD504 is UNSAT
Problem TDEAD505 is UNSAT
Problem TDEAD506 is UNSAT
Problem TDEAD507 is UNSAT
Problem TDEAD508 is UNSAT
Problem TDEAD509 is UNSAT
Problem TDEAD510 is UNSAT
Problem TDEAD511 is UNSAT
Problem TDEAD512 is UNSAT
Problem TDEAD513 is UNSAT
Problem TDEAD514 is UNSAT
Problem TDEAD515 is UNSAT
Problem TDEAD516 is UNSAT
Problem TDEAD517 is UNSAT
Problem TDEAD518 is UNSAT
Problem TDEAD519 is UNSAT
Problem TDEAD520 is UNSAT
Problem TDEAD521 is UNSAT
Problem TDEAD522 is UNSAT
Problem TDEAD523 is UNSAT
Problem TDEAD524 is UNSAT
Problem TDEAD525 is UNSAT
Problem TDEAD526 is UNSAT
Problem TDEAD527 is UNSAT
Problem TDEAD528 is UNSAT
Problem TDEAD529 is UNSAT
Problem TDEAD530 is UNSAT
Problem TDEAD531 is UNSAT
Problem TDEAD532 is UNSAT
Problem TDEAD533 is UNSAT
Problem TDEAD534 is UNSAT
Problem TDEAD535 is UNSAT
Problem TDEAD536 is UNSAT
Problem TDEAD537 is UNSAT
Problem TDEAD538 is UNSAT
Problem TDEAD539 is UNSAT
Problem TDEAD540 is UNSAT
Problem TDEAD541 is UNSAT
Problem TDEAD542 is UNSAT
Problem TDEAD934 is UNSAT
Problem TDEAD935 is UNSAT
Problem TDEAD950 is UNSAT
Problem TDEAD951 is UNSAT
At refinement iteration 1 (INCLUDED_ONLY) 0/137 variables, 2/9 constraints. Problems are: Problem set: 147 solved, 804 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/137 variables, 0/9 constraints. Problems are: Problem set: 147 solved, 804 unsolved
Problem TDEAD619 is UNSAT
At refinement iteration 3 (OVERLAPS) 902/1039 variables, 137/146 constraints. Problems are: Problem set: 148 solved, 803 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1039 variables, 112/258 constraints. Problems are: Problem set: 148 solved, 803 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/1039 variables, 0/258 constraints. Problems are: Problem set: 148 solved, 803 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 1039/1039 variables, and 258 constraints, problems are : Problem set: 148 solved, 803 unsolved in 30024 ms.
Refiners :[Positive P Invariants (semi-flows): 7/7 constraints, State Equation: 137/137 constraints, ReadFeed: 112/112 constraints, PredecessorRefiner: 951/951 constraints, Known Traps: 2/2 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 148 solved, 803 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/137 variables, 7/7 constraints. Problems are: Problem set: 148 solved, 803 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/137 variables, 2/9 constraints. Problems are: Problem set: 148 solved, 803 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/137 variables, 0/9 constraints. Problems are: Problem set: 148 solved, 803 unsolved
At refinement iteration 3 (OVERLAPS) 902/1039 variables, 137/146 constraints. Problems are: Problem set: 148 solved, 803 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1039 variables, 112/258 constraints. Problems are: Problem set: 148 solved, 803 unsolved
Problem TDEAD105 is UNSAT
Problem TDEAD255 is UNSAT
Problem TDEAD256 is UNSAT
Problem TDEAD257 is UNSAT
Problem TDEAD258 is UNSAT
Problem TDEAD259 is UNSAT
Problem TDEAD260 is UNSAT
Problem TDEAD261 is UNSAT
Problem TDEAD262 is UNSAT
Problem TDEAD265 is UNSAT
Problem TDEAD266 is UNSAT
Problem TDEAD267 is UNSAT
Problem TDEAD268 is UNSAT
Problem TDEAD269 is UNSAT
Problem TDEAD270 is UNSAT
Problem TDEAD274 is UNSAT
Problem TDEAD275 is UNSAT
Problem TDEAD276 is UNSAT
Problem TDEAD277 is UNSAT
Problem TDEAD278 is UNSAT
Problem TDEAD279 is UNSAT
Problem TDEAD280 is UNSAT
Problem TDEAD281 is UNSAT
Problem TDEAD282 is UNSAT
Problem TDEAD283 is UNSAT
Problem TDEAD284 is UNSAT
Problem TDEAD285 is UNSAT
Problem TDEAD286 is UNSAT
Problem TDEAD287 is UNSAT
Problem TDEAD288 is UNSAT
Problem TDEAD289 is UNSAT
Problem TDEAD290 is UNSAT
Problem TDEAD295 is UNSAT
Problem TDEAD296 is UNSAT
Problem TDEAD297 is UNSAT
Problem TDEAD298 is UNSAT
Problem TDEAD299 is UNSAT
Problem TDEAD300 is UNSAT
Problem TDEAD301 is UNSAT
Problem TDEAD302 is UNSAT
Problem TDEAD306 is UNSAT
Problem TDEAD307 is UNSAT
Problem TDEAD308 is UNSAT
Problem TDEAD309 is UNSAT
Problem TDEAD310 is UNSAT
Problem TDEAD311 is UNSAT
Problem TDEAD312 is UNSAT
Problem TDEAD313 is UNSAT
Problem TDEAD314 is UNSAT
Problem TDEAD315 is UNSAT
Problem TDEAD316 is UNSAT
Problem TDEAD317 is UNSAT
Problem TDEAD318 is UNSAT
Problem TDEAD319 is UNSAT
Problem TDEAD320 is UNSAT
Problem TDEAD321 is UNSAT
Problem TDEAD322 is UNSAT
Problem TDEAD323 is UNSAT
Problem TDEAD324 is UNSAT
Problem TDEAD325 is UNSAT
Problem TDEAD326 is UNSAT
Problem TDEAD327 is UNSAT
Problem TDEAD328 is UNSAT
Problem TDEAD329 is UNSAT
Problem TDEAD330 is UNSAT
Problem TDEAD595 is UNSAT
Problem TDEAD600 is UNSAT
Problem TDEAD616 is UNSAT
Problem TDEAD622 is UNSAT
Problem TDEAD623 is UNSAT
Problem TDEAD900 is UNSAT
Problem TDEAD906 is UNSAT
Problem TDEAD910 is UNSAT
Problem TDEAD916 is UNSAT
Problem TDEAD920 is UNSAT
Problem TDEAD936 is UNSAT
At refinement iteration 5 (INCLUDED_ONLY) 0/1039 variables, 803/1061 constraints. Problems are: Problem set: 224 solved, 727 unsolved
Problem TDEAD111 is UNSAT
Problem TDEAD112 is UNSAT
Problem TDEAD113 is UNSAT
Problem TDEAD114 is UNSAT
Problem TDEAD116 is UNSAT
Problem TDEAD117 is UNSAT
Problem TDEAD119 is UNSAT
Problem TDEAD120 is UNSAT
Problem TDEAD123 is UNSAT
Problem TDEAD124 is UNSAT
Problem TDEAD125 is UNSAT
Problem TDEAD126 is UNSAT
Problem TDEAD129 is UNSAT
Problem TDEAD130 is UNSAT
Problem TDEAD131 is UNSAT
Problem TDEAD132 is UNSAT
Problem TDEAD134 is UNSAT
Problem TDEAD135 is UNSAT
Problem TDEAD136 is UNSAT
Problem TDEAD137 is UNSAT
Problem TDEAD138 is UNSAT
Problem TDEAD139 is UNSAT
Problem TDEAD140 is UNSAT
Problem TDEAD141 is UNSAT
Problem TDEAD142 is UNSAT
Problem TDEAD143 is UNSAT
Problem TDEAD144 is UNSAT
Problem TDEAD199 is UNSAT
Problem TDEAD200 is UNSAT
Problem TDEAD201 is UNSAT
Problem TDEAD202 is UNSAT
Problem TDEAD203 is UNSAT
Problem TDEAD204 is UNSAT
Problem TDEAD205 is UNSAT
Problem TDEAD206 is UNSAT
Problem TDEAD207 is UNSAT
Problem TDEAD208 is UNSAT
Problem TDEAD209 is UNSAT
Problem TDEAD210 is UNSAT
Problem TDEAD211 is UNSAT
Problem TDEAD212 is UNSAT
Problem TDEAD213 is UNSAT
Problem TDEAD214 is UNSAT
Problem TDEAD215 is UNSAT
Problem TDEAD216 is UNSAT
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1039/1039 variables, and 1062 constraints, problems are : Problem set: 269 solved, 682 unsolved in 30020 ms.
Refiners :[Positive P Invariants (semi-flows): 7/7 constraints, State Equation: 137/137 constraints, ReadFeed: 112/112 constraints, PredecessorRefiner: 803/951 constraints, Known Traps: 3/3 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 60831ms problems are : Problem set: 269 solved, 682 unsolved
Search for dead transitions found 269 dead transitions in 60839ms
Found 269 dead transitions using SMT.
Drop transitions (Dead Transitions using SMT only with invariants) removed 269 transitions
Dead transitions reduction (with SMT) removed 269 transitions
Starting structural reductions in REACHABILITY mode, iteration 1 : 137/137 places, 683/952 transitions.
Graph (complete) has 991 edges and 137 vertex of which 134 are kept as prefixes of interest. Removing 3 places using SCC suffix rule.1 ms
Discarding 3 places :
Also discarding 0 output transitions
Reduce places removed 21 places and 252 transitions.
Iterating post reduction 0 with 21 rules applied. Total rules applied 22 place count 113 transition count 431
Reduce places removed 15 places and 89 transitions.
Graph (complete) has 537 edges and 98 vertex of which 2 are kept as prefixes of interest. Removing 96 places using SCC suffix rule.0 ms
Discarding 96 places :
Also discarding 342 output transitions
Drop transitions (Output transitions of discarded places.) removed 342 transitions
Iterating post reduction 1 with 16 rules applied. Total rules applied 38 place count 2 transition count 0
Deduced a syphon composed of 2 places in 0 ms
Applied a total of 38 rules in 8 ms. Remains 2 /137 variables (removed 135) and now considering 0/683 (removed 683) transitions.
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-15416681600294517938.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-12486949519523915329.kers'
[2026-05-24 01:08:19] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-15416681600294517938.kers, --Pflows, --basisKERS=/tmp/petrispot-output-12486949519523915329.kers]
[2026-05-24 01:08:19] [INFO ] Computed 0 invariants in 0 ms
Computed 0 P flows in 0 ms.
Exported basis to /tmp/petrispot-output-12486949519523915329.kers
Total runtime 0 ms.
[2026-05-24 01:08:19] [INFO ] Implicit Places using invariants in 20 ms returned []
[2026-05-24 01:08:19] [INFO ] Invariant cache hit.
[2026-05-24 01:08:19] [INFO ] Implicit Places using invariants and state equation in 16 ms returned []
Implicit Place search using SMT with State Equation took 38 ms to find 0 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 2 : 2/137 places, 0/952 transitions.
Finished structural reductions in REACHABILITY mode , in 2 iterations and 61844 ms. Remains : 2/137 places, 0/952 transitions.
Deduced a syphon composed of 2 places in 0 ms
Reduce places removed 2 places and 0 transitions.
FORMULA BugTracking-PT-q3m008-UpperBounds-08 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA BugTracking-PT-q3m008-UpperBounds-03 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
Current structural bounds on expressions (after structural reductions) : Max Seen:[] Max Struct:[]
All properties solved without resorting to model-checking.
Total runtime 206600 ms.

BK_STOP 1779584899622

--------------------
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_1.0.0.202604301425.jar
+ VERSION=202604301425
+ echo 'Running Version 202604301425'
+ /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="BugTracking-PT-q3m008"
export BK_EXAMINATION="UpperBounds"
export BK_TOOL="itstools"
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 itstools"
echo " Input is BugTracking-PT-q3m008, 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 r034-tall-177946841900341"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/BugTracking-PT-q3m008.tgz
mv BugTracking-PT-q3m008 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 ;