fond
Model Checking Contest 2026
16th edition, Hamburg, Germany, June 23, 2026
Execution of r050-smll-177946901100179
Last Updated
Jun 17, 2026

About the Execution of ITS-Tools for CircadianClock-PT-000010

Execution Summary
Max Memory
Used (MB)
Time wait (ms) CPU Usage (ms) I/O Wait (ms) Computed Result Execution
Status
405.079 11944.00 22528.00 141.20 FTFTTFFFFTFFFFFF normal

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.r050-smll-177946901100179.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 CircadianClock-PT-000010, examination is LTLCardinality
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r050-smll-177946901100179
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 480K
-rw-r--r-- 1 mcc users 6.0K Mar 6 10:53 CTLCardinality.txt
-rw-r--r-- 1 mcc users 60K Mar 6 10:53 CTLCardinality.xml
-rw-r--r-- 1 mcc users 6.8K Mar 6 10:53 CTLFireability.txt
-rw-r--r-- 1 mcc users 62K Mar 6 10:53 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Mar 3 18:30 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.7K Mar 3 18:30 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 3.8K Mar 15 08:03 LTLCardinality.txt
-rw-r--r-- 1 mcc users 25K Mar 15 08:03 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.6K Mar 15 08:03 LTLFireability.txt
-rw-r--r-- 1 mcc users 19K Mar 15 08:03 LTLFireability.xml
-rw-r--r-- 1 mcc users 13K Mar 6 10:53 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 144K Mar 6 10:53 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 8.3K Mar 6 10:53 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 63K Mar 6 10:53 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K Mar 15 08:03 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.8K Mar 15 08:03 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 11K 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 booleans
BOOL_VECTOR

echo here is the order used to build the result vector(from xml file)
FORMULA_NAME CircadianClock-PT-000010-LTLCardinality-00
FORMULA_NAME CircadianClock-PT-000010-LTLCardinality-01
FORMULA_NAME CircadianClock-PT-000010-LTLCardinality-02
FORMULA_NAME CircadianClock-PT-000010-LTLCardinality-03
FORMULA_NAME CircadianClock-PT-000010-LTLCardinality-04
FORMULA_NAME CircadianClock-PT-000010-LTLCardinality-05
FORMULA_NAME CircadianClock-PT-000010-LTLCardinality-06
FORMULA_NAME CircadianClock-PT-000010-LTLCardinality-07
FORMULA_NAME CircadianClock-PT-000010-LTLCardinality-08
FORMULA_NAME CircadianClock-PT-000010-LTLCardinality-09
FORMULA_NAME CircadianClock-PT-000010-LTLCardinality-10
FORMULA_NAME CircadianClock-PT-000010-LTLCardinality-11
FORMULA_NAME CircadianClock-PT-000010-LTLCardinality-12
FORMULA_NAME CircadianClock-PT-000010-LTLCardinality-13
FORMULA_NAME CircadianClock-PT-000010-LTLCardinality-14
FORMULA_NAME CircadianClock-PT-000010-LTLCardinality-15

=== Now, execution of the tool begins

BK_START 1779553377756

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=LTLCardinality
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=CircadianClock-PT-000010
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
LTLCardinality PT
Running Version 202604301425
[2026-05-23 16:23:00] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, LTLCardinality, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2026-05-23 16:23:00] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-23 16:23:00] [INFO ] Load time of PNML (sax parser for PT used): 77 ms
[2026-05-23 16:23:00] [INFO ] Transformed 14 places.
[2026-05-23 16:23:00] [INFO ] Transformed 16 transitions.
[2026-05-23 16:23:00] [INFO ] Parsed PT model containing 14 places and 16 transitions and 58 arcs in 294 ms.
Parsed 16 properties from file /home/mcc/execution/LTLCardinality.xml in 18 ms.
Working with output stream class java.io.PrintStream
Initial state reduction rules removed 2 formulas.
FORMULA CircadianClock-PT-000010-LTLCardinality-09 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA CircadianClock-PT-000010-LTLCardinality-10 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Initial state reduction rules removed 1 formulas.
FORMULA CircadianClock-PT-000010-LTLCardinality-03 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Support contains 14 out of 14 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 14/14 places, 16/16 transitions.
Applied a total of 0 rules in 10 ms. Remains 14 /14 variables (removed 0) and now considering 16/16 (removed 0) transitions.
[2026-05-23 16:23:00] [INFO ] Flow matrix only has 14 transitions (discarded 2 similar events)
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-9502943716375953596.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-15290372044916649643.kers'
[2026-05-23 16:23:00] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-9502943716375953596.kers, --Pflows, --basisKERS=/tmp/petrispot-output-15290372044916649643.kers]
Culling duplicate invariants (modulo rational): removing 7 columns.
Culled 7 columns in 0 ms.
// Phase 1: matrix 14 rows 7 cols 21 entries
Finished phase 1 with 7 SingleSign rule and 0 generalized
[2026-05-23 16:23:00] [INFO ] Computed 7 invariants in 0 ms
Computed 7 P flows in 1 ms.
Exported basis to /tmp/petrispot-output-15290372044916649643.kers
Total runtime 1 ms.
[2026-05-23 16:23:01] [INFO ] Implicit Places using invariants in 200 ms returned []
[2026-05-23 16:23:01] [INFO ] Flow matrix only has 14 transitions (discarded 2 similar events)
[2026-05-23 16:23:01] [INFO ] Invariant cache hit.
[2026-05-23 16:23:01] [INFO ] State equation strengthened by 2 read => feed constraints.
[2026-05-23 16:23:01] [INFO ] Implicit Places using invariants and state equation in 72 ms returned []
Implicit Place search using SMT with State Equation took 321 ms to find 0 implicit places.
Running 14 sub problems to find dead transitions.
[2026-05-23 16:23:01] [INFO ] Flow matrix only has 14 transitions (discarded 2 similar events)
[2026-05-23 16:23:01] [INFO ] Invariant cache hit.
[2026-05-23 16:23:01] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/14 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/14 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 2 (OVERLAPS) 14/28 variables, 14/21 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/28 variables, 2/23 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/28 variables, 0/23 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 5 (OVERLAPS) 0/28 variables, 0/23 constraints. Problems are: Problem set: 0 solved, 14 unsolved
No progress, stopping.
After SMT solving in domain Real declared 28/28 variables, and 23 constraints, problems are : Problem set: 0 solved, 14 unsolved in 460 ms.
Refiners :[Positive P Invariants (semi-flows): 7/7 constraints, State Equation: 14/14 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 14/14 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 14 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/14 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/14 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 2 (OVERLAPS) 14/28 variables, 14/21 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/28 variables, 2/23 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/28 variables, 14/37 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/28 variables, 0/37 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 6 (OVERLAPS) 0/28 variables, 0/37 constraints. Problems are: Problem set: 0 solved, 14 unsolved
No progress, stopping.
After SMT solving in domain Int declared 28/28 variables, and 37 constraints, problems are : Problem set: 0 solved, 14 unsolved in 387 ms.
Refiners :[Positive P Invariants (semi-flows): 7/7 constraints, State Equation: 14/14 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 14/14 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 880ms problems are : Problem set: 0 solved, 14 unsolved
Search for dead transitions found 0 dead transitions in 895ms
Finished structural reductions in LTL mode , in 1 iterations and 1279 ms. Remains : 14/14 places, 16/16 transitions.
Starting structural reductions in LTL mode, iteration 0 : 14/14 places, 16/16 transitions.
Applied a total of 0 rules in 0 ms. Remains 14 /14 variables (removed 0) and now considering 16/16 (removed 0) transitions.
[2026-05-23 16:23:02] [INFO ] Flow matrix only has 14 transitions (discarded 2 similar events)
[2026-05-23 16:23:02] [INFO ] Invariant cache hit.
[2026-05-23 16:23:02] [INFO ] Implicit Places using invariants in 32 ms returned []
[2026-05-23 16:23:02] [INFO ] Flow matrix only has 14 transitions (discarded 2 similar events)
[2026-05-23 16:23:02] [INFO ] Invariant cache hit.
[2026-05-23 16:23:02] [INFO ] State equation strengthened by 2 read => feed constraints.
[2026-05-23 16:23:02] [INFO ] Implicit Places using invariants and state equation in 51 ms returned []
Implicit Place search using SMT with State Equation took 86 ms to find 0 implicit places.
Skipped dead transition search.
Finished structural reductions in LTL mode , in 1 iterations and 91 ms. Remains : 14/14 places, 16/16 transitions.
Support contains 14 out of 14 places after structural reductions.
[2026-05-23 16:23:02] [INFO ] Flatten gal took : 32 ms
[2026-05-23 16:23:02] [INFO ] Flatten gal took : 9 ms
[2026-05-23 16:23:02] [INFO ] Input system was already deterministic with 16 transitions.
RANDOM walk for 40007 steps (8 resets) in 543 ms. (73 steps per ms) remains 2/30 properties
BEST_FIRST walk for 40004 steps (8 resets) in 351 ms. (113 steps per ms) remains 2/2 properties
BEST_FIRST walk for 40004 steps (8 resets) in 198 ms. (201 steps per ms) remains 2/2 properties
[2026-05-23 16:23:03] [INFO ] Flow matrix only has 14 transitions (discarded 2 similar events)
[2026-05-23 16:23:03] [INFO ] Invariant cache hit.
[2026-05-23 16:23:03] [INFO ] State equation strengthened by 2 read => feed constraints.
Problem AtomicPropp7 is UNSAT
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/5 variables, 2/2 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/5 variables, 0/2 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 2 (OVERLAPS) 1/6 variables, 1/3 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/6 variables, 0/3 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 4 (OVERLAPS) 6/12 variables, 6/9 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/12 variables, 0/9 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 7/19 variables, 2/11 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/19 variables, 1/12 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/19 variables, 1/13 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/19 variables, 0/13 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 9/28 variables, 6/19 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/28 variables, 3/22 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/28 variables, 1/23 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/28 variables, 0/23 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 0/28 variables, 0/23 constraints. Problems are: Problem set: 1 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 28/28 variables, and 23 constraints, problems are : Problem set: 1 solved, 1 unsolved in 84 ms.
Refiners :[Positive P Invariants (semi-flows): 7/7 constraints, State Equation: 14/14 constraints, ReadFeed: 2/2 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
At refinement iteration 0 (INCLUDED_ONLY) 0/4 variables, 1/1 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/4 variables, 0/1 constraints. Problems are: Problem set: 1 solved, 1 unsolved
Problem AtomicPropp3 is UNSAT
After SMT solving in domain Int declared 6/28 variables, and 3 constraints, problems are : Problem set: 2 solved, 0 unsolved in 28 ms.
Refiners :[Positive P Invariants (semi-flows): 3/7 constraints, State Equation: 0/14 constraints, ReadFeed: 0/2 constraints, PredecessorRefiner: 0/2 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 123ms problems are : Problem set: 2 solved, 0 unsolved
Skipping Parikh replay, no witness traces provided.
FORMULA CircadianClock-PT-000010-LTLCardinality-15 FALSE TECHNIQUES REACHABILITY_KNOWLEDGE
FORMULA CircadianClock-PT-000010-LTLCardinality-00 FALSE TECHNIQUES REACHABILITY_KNOWLEDGE
Successfully simplified 2 atomic propositions for a total of 11 simplifications.
Initial state reduction rules removed 1 formulas.
FORMULA CircadianClock-PT-000010-LTLCardinality-01 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Computed a total of 0 stabilizing places and 0 stable transitions
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!((G((p0||X(F(p1)))) U X(X(G(p2)))))'
Support contains 3 out of 14 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 14/14 places, 16/16 transitions.
Applied a total of 0 rules in 2 ms. Remains 14 /14 variables (removed 0) and now considering 16/16 (removed 0) transitions.
[2026-05-23 16:23:03] [INFO ] Flow matrix only has 14 transitions (discarded 2 similar events)
[2026-05-23 16:23:03] [INFO ] Invariant cache hit.
[2026-05-23 16:23:03] [INFO ] Implicit Places using invariants in 56 ms returned []
[2026-05-23 16:23:03] [INFO ] Flow matrix only has 14 transitions (discarded 2 similar events)
[2026-05-23 16:23:03] [INFO ] Invariant cache hit.
[2026-05-23 16:23:03] [INFO ] State equation strengthened by 2 read => feed constraints.
[2026-05-23 16:23:03] [INFO ] Implicit Places using invariants and state equation in 67 ms returned []
Implicit Place search using SMT with State Equation took 125 ms to find 0 implicit places.
Skipped dead transition search.
Finished structural reductions in LTL mode , in 1 iterations and 127 ms. Remains : 14/14 places, 16/16 transitions.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!((G((p0||X(F(p1)))) U X(X(G(p2)))))'
Stuttering acceptance computed with spot in 651 ms :[(AND (NOT p1) p0 (NOT p2)), (AND (NOT p0) (NOT p1) (NOT p2)), (AND (NOT p1) p0 (NOT p2)), (AND (NOT p0) (NOT p2) (NOT p1)), (NOT p2), (NOT p1), (AND (NOT p1) (NOT p0) p2)]
Running random walk in product with property : CircadianClock-PT-000010-LTLCardinality-02
Product exploration explored 100000 steps with 17258 reset in 645 ms.
Stack based approach found an accepted trace after 2 steps with 0 reset with depth 3 and stack size 3 in 0 ms.
FORMULA CircadianClock-PT-000010-LTLCardinality-02 FALSE TECHNIQUES STACK_TEST
Treatment of property CircadianClock-PT-000010-LTLCardinality-02 finished in 1579 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!((p0&&X(p1)))'
Support contains 3 out of 14 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 14/14 places, 16/16 transitions.
Applied a total of 0 rules in 1 ms. Remains 14 /14 variables (removed 0) and now considering 16/16 (removed 0) transitions.
[2026-05-23 16:23:05] [INFO ] Flow matrix only has 14 transitions (discarded 2 similar events)
[2026-05-23 16:23:05] [INFO ] Invariant cache hit.
[2026-05-23 16:23:05] [INFO ] Implicit Places using invariants in 44 ms returned []
[2026-05-23 16:23:05] [INFO ] Flow matrix only has 14 transitions (discarded 2 similar events)
[2026-05-23 16:23:05] [INFO ] Invariant cache hit.
[2026-05-23 16:23:05] [INFO ] State equation strengthened by 2 read => feed constraints.
[2026-05-23 16:23:05] [INFO ] Implicit Places using invariants and state equation in 59 ms returned []
Implicit Place search using SMT with State Equation took 106 ms to find 0 implicit places.
Skipped dead transition search.
Finished structural reductions in LTL mode , in 1 iterations and 107 ms. Remains : 14/14 places, 16/16 transitions.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!((p0&&X(p1)))'
Stuttering acceptance computed with spot in 114 ms :[(NOT p1), true, (OR (NOT p0) (NOT p1))]
Running random walk in product with property : CircadianClock-PT-000010-LTLCardinality-04
Product exploration explored 100000 steps with 50000 reset in 200 ms.
Product exploration explored 100000 steps with 50000 reset in 260 ms.
Computed a total of 0 stabilizing places and 0 stable transitions
Computed a total of 0 stabilizing places and 0 stable transitions
Property proved to be true by K+ with min(!phi)
Knowledge based reduction with 2 factoid took 25 ms. Proved property starting from automaton with 3 states, 4 edges and 2 AP (stutter sensitive
Knowledge-based reduction took 36 ms.
FORMULA CircadianClock-PT-000010-LTLCardinality-04 TRUE TECHNIQUES KNOWLEDGE
Treatment of property CircadianClock-PT-000010-LTLCardinality-04 finished in 760 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X(X((!p0&&F(p1)))))'
Support contains 2 out of 14 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 14/14 places, 16/16 transitions.
Applied a total of 0 rules in 1 ms. Remains 14 /14 variables (removed 0) and now considering 16/16 (removed 0) transitions.
[2026-05-23 16:23:05] [INFO ] Flow matrix only has 14 transitions (discarded 2 similar events)
[2026-05-23 16:23:05] [INFO ] Invariant cache hit.
[2026-05-23 16:23:05] [INFO ] Implicit Places using invariants in 45 ms returned []
[2026-05-23 16:23:05] [INFO ] Flow matrix only has 14 transitions (discarded 2 similar events)
[2026-05-23 16:23:05] [INFO ] Invariant cache hit.
[2026-05-23 16:23:06] [INFO ] State equation strengthened by 2 read => feed constraints.
[2026-05-23 16:23:06] [INFO ] Implicit Places using invariants and state equation in 61 ms returned []
Implicit Place search using SMT with State Equation took 113 ms to find 0 implicit places.
Skipped dead transition search.
Finished structural reductions in LTL mode , in 1 iterations and 114 ms. Remains : 14/14 places, 16/16 transitions.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X(X((p0&&F(p1)))))'
Stuttering acceptance computed with spot in 168 ms :[(NOT p1), (OR (NOT p0) (NOT p1)), (OR (NOT p0) (NOT p1)), true, (OR (NOT p0) (NOT p1))]
Running random walk in product with property : CircadianClock-PT-000010-LTLCardinality-05
Entered a terminal (fully accepting) state of product in 2 steps with 0 reset in 1 ms.
FORMULA CircadianClock-PT-000010-LTLCardinality-05 FALSE TECHNIQUES STUTTER_TEST
Treatment of property CircadianClock-PT-000010-LTLCardinality-05 finished in 319 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(G(F((p0||G(p1)))))'
Support contains 3 out of 14 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 14/14 places, 16/16 transitions.
Applied a total of 0 rules in 5 ms. Remains 14 /14 variables (removed 0) and now considering 16/16 (removed 0) transitions.
[2026-05-23 16:23:06] [INFO ] Flow matrix only has 14 transitions (discarded 2 similar events)
[2026-05-23 16:23:06] [INFO ] Invariant cache hit.
[2026-05-23 16:23:06] [INFO ] Implicit Places using invariants in 28 ms returned []
[2026-05-23 16:23:06] [INFO ] Flow matrix only has 14 transitions (discarded 2 similar events)
[2026-05-23 16:23:06] [INFO ] Invariant cache hit.
[2026-05-23 16:23:06] [INFO ] State equation strengthened by 2 read => feed constraints.
[2026-05-23 16:23:06] [INFO ] Implicit Places using invariants and state equation in 43 ms returned []
Implicit Place search using SMT with State Equation took 74 ms to find 0 implicit places.
[2026-05-23 16:23:06] [INFO ] Redundant transitions in 17 ms returned []
Skipped dead transition search.
Finished structural reductions in SI_LTL mode , in 1 iterations and 105 ms. Remains : 14/14 places, 16/16 transitions.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(G(F((p0||G(p1)))))'
Stuttering acceptance computed with spot in 75 ms :[(AND (NOT p1) (NOT p0)), (AND (NOT p1) (NOT p0))]
Running random walk in product with property : CircadianClock-PT-000010-LTLCardinality-06
Product exploration explored 100000 steps with 2849 reset in 179 ms.
Stack based approach found an accepted trace after 10 steps with 1 reset with depth 5 and stack size 4 in 0 ms.
FORMULA CircadianClock-PT-000010-LTLCardinality-06 FALSE TECHNIQUES STACK_TEST
Treatment of property CircadianClock-PT-000010-LTLCardinality-06 finished in 390 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(F(G(p0)))'
Support contains 2 out of 14 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 14/14 places, 16/16 transitions.
Applied a total of 0 rules in 6 ms. Remains 14 /14 variables (removed 0) and now considering 16/16 (removed 0) transitions.
[2026-05-23 16:23:06] [INFO ] Flow matrix only has 14 transitions (discarded 2 similar events)
[2026-05-23 16:23:06] [INFO ] Invariant cache hit.
[2026-05-23 16:23:06] [INFO ] Implicit Places using invariants in 39 ms returned []
[2026-05-23 16:23:06] [INFO ] Flow matrix only has 14 transitions (discarded 2 similar events)
[2026-05-23 16:23:06] [INFO ] Invariant cache hit.
[2026-05-23 16:23:06] [INFO ] State equation strengthened by 2 read => feed constraints.
[2026-05-23 16:23:06] [INFO ] Implicit Places using invariants and state equation in 65 ms returned []
Implicit Place search using SMT with State Equation took 107 ms to find 0 implicit places.
[2026-05-23 16:23:06] [INFO ] Redundant transitions in 23 ms returned []
Skipped dead transition search.
Finished structural reductions in SI_LTL mode , in 1 iterations and 149 ms. Remains : 14/14 places, 16/16 transitions.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(F(G(p0)))'
Stuttering acceptance computed with spot in 40 ms :[(NOT p0)]
Running random walk in product with property : CircadianClock-PT-000010-LTLCardinality-07
Product exploration explored 100000 steps with 0 reset in 246 ms.
Stack based approach found an accepted trace after 1 steps with 0 reset with depth 2 and stack size 2 in 0 ms.
FORMULA CircadianClock-PT-000010-LTLCardinality-07 FALSE TECHNIQUES STACK_TEST
Treatment of property CircadianClock-PT-000010-LTLCardinality-07 finished in 470 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!((G((p0||X(X(p1))))||F((G(F(!p1))||(p2&&F(!p1))))))'
Support contains 5 out of 14 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 14/14 places, 16/16 transitions.
Applied a total of 0 rules in 0 ms. Remains 14 /14 variables (removed 0) and now considering 16/16 (removed 0) transitions.
[2026-05-23 16:23:07] [INFO ] Flow matrix only has 14 transitions (discarded 2 similar events)
[2026-05-23 16:23:07] [INFO ] Invariant cache hit.
[2026-05-23 16:23:07] [INFO ] Implicit Places using invariants in 33 ms returned []
[2026-05-23 16:23:07] [INFO ] Flow matrix only has 14 transitions (discarded 2 similar events)
[2026-05-23 16:23:07] [INFO ] Invariant cache hit.
[2026-05-23 16:23:07] [INFO ] State equation strengthened by 2 read => feed constraints.
[2026-05-23 16:23:07] [INFO ] Implicit Places using invariants and state equation in 39 ms returned []
Implicit Place search using SMT with State Equation took 73 ms to find 0 implicit places.
Skipped dead transition search.
Finished structural reductions in LTL mode , in 1 iterations and 74 ms. Remains : 14/14 places, 16/16 transitions.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!((G((p0||X(X(p1))))||F((G(F(!p1))||(p2&&F(!p1))))))'
Stuttering acceptance computed with spot in 192 ms :[false, false, false, p1, p1]
Running random walk in product with property : CircadianClock-PT-000010-LTLCardinality-08
Product exploration explored 100000 steps with 6150 reset in 132 ms.
Stack based approach found an accepted trace after 2781 steps with 164 reset with depth 154 and stack size 123 in 4 ms.
FORMULA CircadianClock-PT-000010-LTLCardinality-08 FALSE TECHNIQUES STACK_TEST
Treatment of property CircadianClock-PT-000010-LTLCardinality-08 finished in 440 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!((X((p0||X((p1&&G(p2))))) U ((p1&&X((p0||X((p1&&G(p2))))))||X(G((p0||X((p1&&G(p2)))))))))'
Support contains 3 out of 14 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 14/14 places, 16/16 transitions.
Applied a total of 0 rules in 0 ms. Remains 14 /14 variables (removed 0) and now considering 16/16 (removed 0) transitions.
[2026-05-23 16:23:07] [INFO ] Flow matrix only has 14 transitions (discarded 2 similar events)
[2026-05-23 16:23:07] [INFO ] Invariant cache hit.
[2026-05-23 16:23:07] [INFO ] Implicit Places using invariants in 33 ms returned []
[2026-05-23 16:23:07] [INFO ] Flow matrix only has 14 transitions (discarded 2 similar events)
[2026-05-23 16:23:07] [INFO ] Invariant cache hit.
[2026-05-23 16:23:07] [INFO ] State equation strengthened by 2 read => feed constraints.
[2026-05-23 16:23:07] [INFO ] Implicit Places using invariants and state equation in 47 ms returned []
Implicit Place search using SMT with State Equation took 83 ms to find 0 implicit places.
Skipped dead transition search.
Finished structural reductions in LTL mode , in 1 iterations and 83 ms. Remains : 14/14 places, 16/16 transitions.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!((X((p0||X((p1&&G(p2))))) U (X(G((p0||X((p1&&G(p2))))))||(p1&&X((p0||X((p1&&G(p2)))))))))'
Stuttering acceptance computed with spot in 307 ms :[(OR (AND (NOT p0) (NOT p2)) (AND (NOT p0) (NOT p1))), (OR (AND (NOT p0) (NOT p1)) (AND (NOT p0) (NOT p2))), (OR (NOT p1) (NOT p2)), true, (NOT p2), (OR (AND (NOT p0) (NOT p1)) (AND (NOT p0) (NOT p2))), (AND (NOT p0) (NOT p2))]
Running random walk in product with property : CircadianClock-PT-000010-LTLCardinality-11
Entered a terminal (fully accepting) state of product in 442 steps with 0 reset in 1 ms.
FORMULA CircadianClock-PT-000010-LTLCardinality-11 FALSE TECHNIQUES STUTTER_TEST
Treatment of property CircadianClock-PT-000010-LTLCardinality-11 finished in 434 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X(((G(p0) U X(p1))||F(G(p2)))))'
Support contains 4 out of 14 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 14/14 places, 16/16 transitions.
Applied a total of 0 rules in 1 ms. Remains 14 /14 variables (removed 0) and now considering 16/16 (removed 0) transitions.
[2026-05-23 16:23:07] [INFO ] Flow matrix only has 14 transitions (discarded 2 similar events)
[2026-05-23 16:23:07] [INFO ] Invariant cache hit.
[2026-05-23 16:23:08] [INFO ] Implicit Places using invariants in 31 ms returned []
[2026-05-23 16:23:08] [INFO ] Flow matrix only has 14 transitions (discarded 2 similar events)
[2026-05-23 16:23:08] [INFO ] Invariant cache hit.
[2026-05-23 16:23:08] [INFO ] State equation strengthened by 2 read => feed constraints.
[2026-05-23 16:23:08] [INFO ] Implicit Places using invariants and state equation in 47 ms returned []
Implicit Place search using SMT with State Equation took 80 ms to find 0 implicit places.
Skipped dead transition search.
Finished structural reductions in LTL mode , in 1 iterations and 81 ms. Remains : 14/14 places, 16/16 transitions.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X(((G(p0) U X(p1))||F(G(p2)))))'
Stuttering acceptance computed with spot in 262 ms :[(AND (NOT p1) (NOT p2)), (AND (NOT p1) (NOT p2)), (AND (NOT p1) (NOT p2)), (NOT p2), (AND (NOT p2) (NOT p0)), (AND (NOT p1) (NOT p2))]
Running random walk in product with property : CircadianClock-PT-000010-LTLCardinality-12
Product exploration explored 100000 steps with 0 reset in 232 ms.
Stack based approach found an accepted trace after 670 steps with 0 reset with depth 671 and stack size 562 in 2 ms.
FORMULA CircadianClock-PT-000010-LTLCardinality-12 FALSE TECHNIQUES STACK_TEST
Treatment of property CircadianClock-PT-000010-LTLCardinality-12 finished in 624 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(G((p0||X((G(p2)||p1)))))'
Support contains 3 out of 14 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 14/14 places, 16/16 transitions.
Applied a total of 0 rules in 1 ms. Remains 14 /14 variables (removed 0) and now considering 16/16 (removed 0) transitions.
[2026-05-23 16:23:08] [INFO ] Flow matrix only has 14 transitions (discarded 2 similar events)
[2026-05-23 16:23:08] [INFO ] Invariant cache hit.
[2026-05-23 16:23:08] [INFO ] Implicit Places using invariants in 42 ms returned []
[2026-05-23 16:23:08] [INFO ] Flow matrix only has 14 transitions (discarded 2 similar events)
[2026-05-23 16:23:08] [INFO ] Invariant cache hit.
[2026-05-23 16:23:08] [INFO ] State equation strengthened by 2 read => feed constraints.
[2026-05-23 16:23:08] [INFO ] Implicit Places using invariants and state equation in 58 ms returned []
Implicit Place search using SMT with State Equation took 102 ms to find 0 implicit places.
Skipped dead transition search.
Finished structural reductions in LTL mode , in 1 iterations and 103 ms. Remains : 14/14 places, 16/16 transitions.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(G((X((G(p1)||p0))||p2)))'
Stuttering acceptance computed with spot in 162 ms :[true, (AND (NOT p2) (NOT p1) (NOT p0)), (AND (NOT p0) (NOT p1)), (NOT p1)]
Running random walk in product with property : CircadianClock-PT-000010-LTLCardinality-13
Entered a terminal (fully accepting) state of product in 1 steps with 0 reset in 0 ms.
FORMULA CircadianClock-PT-000010-LTLCardinality-13 FALSE TECHNIQUES STUTTER_TEST
Treatment of property CircadianClock-PT-000010-LTLCardinality-13 finished in 306 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X(X((X(X(p0)) U (X(X(G(p0)))||(p1&&X((X(p0)&&F(p1)))))))))'
Support contains 3 out of 14 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 14/14 places, 16/16 transitions.
Applied a total of 0 rules in 1 ms. Remains 14 /14 variables (removed 0) and now considering 16/16 (removed 0) transitions.
[2026-05-23 16:23:08] [INFO ] Flow matrix only has 14 transitions (discarded 2 similar events)
[2026-05-23 16:23:08] [INFO ] Invariant cache hit.
[2026-05-23 16:23:08] [INFO ] Implicit Places using invariants in 45 ms returned []
[2026-05-23 16:23:08] [INFO ] Flow matrix only has 14 transitions (discarded 2 similar events)
[2026-05-23 16:23:08] [INFO ] Invariant cache hit.
[2026-05-23 16:23:09] [INFO ] State equation strengthened by 2 read => feed constraints.
[2026-05-23 16:23:09] [INFO ] Implicit Places using invariants and state equation in 55 ms returned []
Implicit Place search using SMT with State Equation took 103 ms to find 0 implicit places.
Skipped dead transition search.
Finished structural reductions in LTL mode , in 1 iterations and 104 ms. Remains : 14/14 places, 16/16 transitions.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X(X((X(X(p0)) U (X(X(G(p0)))||(p1&&X((X(p0)&&F(p1)))))))))'
Stuttering acceptance computed with spot in 537 ms :[true, (NOT p0), (NOT p1), (NOT p0), (NOT p0), (NOT p0), (NOT p0), (AND (NOT p1) (NOT p0)), (NOT p0), (NOT p0), (NOT p0), (NOT p0)]
Running random walk in product with property : CircadianClock-PT-000010-LTLCardinality-14
Entered a terminal (fully accepting) state of product in 5 steps with 0 reset in 0 ms.
FORMULA CircadianClock-PT-000010-LTLCardinality-14 FALSE TECHNIQUES STUTTER_TEST
Treatment of property CircadianClock-PT-000010-LTLCardinality-14 finished in 723 ms.
All properties solved by simple procedures.
Total runtime 9417 ms.

BK_STOP 1779553389700

--------------------
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
+ [[ LTLCardinality = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution LTLCardinality -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 LTLCardinality -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="CircadianClock-PT-000010"
export BK_EXAMINATION="LTLCardinality"
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 CircadianClock-PT-000010, examination is LTLCardinality"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r050-smll-177946901100179"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/CircadianClock-PT-000010.tgz
mv CircadianClock-PT-000010 execution
cd execution
if [ "LTLCardinality" = "ReachabilityDeadlock" ] || [ "LTLCardinality" = "UpperBounds" ] || [ "LTLCardinality" = "QuasiLiveness" ] || [ "LTLCardinality" = "StableMarking" ] || [ "LTLCardinality" = "Liveness" ] || [ "LTLCardinality" = "OneSafe" ] || [ "LTLCardinality" = "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 [ "LTLCardinality" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "LTLCardinality" != "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 "LTLCardinality.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 '' LTLCardinality.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "LTLCardinality" = "ReachabilityDeadlock" ] || [ "LTLCardinality" = "QuasiLiveness" ] || [ "LTLCardinality" = "StableMarking" ] || [ "LTLCardinality" = "Liveness" ] || [ "LTLCardinality" = "OneSafe" ] ; then
echo "FORMULA_NAME LTLCardinality"
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 ;