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-177946901100172.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-000001, examination is LTLFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r050-smll-177946901100172
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 416K
-rw-r--r-- 1 mcc users 6.7K Mar 6 10:52 CTLCardinality.txt
-rw-r--r-- 1 mcc users 69K Mar 6 10:52 CTLCardinality.xml
-rw-r--r-- 1 mcc users 4.4K Mar 6 10:52 CTLFireability.txt
-rw-r--r-- 1 mcc users 31K Mar 6 10:52 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 4.0K Mar 15 08:03 LTLCardinality.txt
-rw-r--r-- 1 mcc users 29K 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 11K Mar 6 10:52 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 112K Mar 6 10:52 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 7.3K Mar 6 10:52 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 54K Mar 6 10:52 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K Mar 15 08:03 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K 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 12K 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-000001-LTLFireability-00
FORMULA_NAME CircadianClock-PT-000001-LTLFireability-01
FORMULA_NAME CircadianClock-PT-000001-LTLFireability-02
FORMULA_NAME CircadianClock-PT-000001-LTLFireability-03
FORMULA_NAME CircadianClock-PT-000001-LTLFireability-04
FORMULA_NAME CircadianClock-PT-000001-LTLFireability-05
FORMULA_NAME CircadianClock-PT-000001-LTLFireability-06
FORMULA_NAME CircadianClock-PT-000001-LTLFireability-07
FORMULA_NAME CircadianClock-PT-000001-LTLFireability-08
FORMULA_NAME CircadianClock-PT-000001-LTLFireability-09
FORMULA_NAME CircadianClock-PT-000001-LTLFireability-10
FORMULA_NAME CircadianClock-PT-000001-LTLFireability-11
FORMULA_NAME CircadianClock-PT-000001-LTLFireability-12
FORMULA_NAME CircadianClock-PT-000001-LTLFireability-13
FORMULA_NAME CircadianClock-PT-000001-LTLFireability-14
FORMULA_NAME CircadianClock-PT-000001-LTLFireability-15

=== Now, execution of the tool begins

BK_START 1779553255052

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=LTLFireability
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=CircadianClock-PT-000001
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
LTLFireability PT
Running Version 202604301425
[2026-05-23 16:20:57] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, LTLFireability, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2026-05-23 16:20:57] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-23 16:20:57] [INFO ] Load time of PNML (sax parser for PT used): 62 ms
[2026-05-23 16:20:57] [INFO ] Transformed 14 places.
[2026-05-23 16:20:57] [INFO ] Transformed 16 transitions.
[2026-05-23 16:20:57] [INFO ] Found NUPN structural information;
[2026-05-23 16:20:57] [INFO ] Parsed PT model containing 14 places and 16 transitions and 58 arcs in 224 ms.
Parsed 16 properties from file /home/mcc/execution/LTLFireability.xml in 17 ms.
Working with output stream class java.io.PrintStream
Initial state reduction rules removed 1 formulas.
FORMULA CircadianClock-PT-000001-LTLFireability-01 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 15 ms. Remains 14 /14 variables (removed 0) and now considering 16/16 (removed 0) transitions.
[2026-05-23 16:20:57] [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-9507022823311581334.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-17520342692969345387.kers'
[2026-05-23 16:20:57] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-9507022823311581334.kers, --Pflows, --basisKERS=/tmp/petrispot-output-17520342692969345387.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 16:20:57] [INFO ] Computed 7 invariants in 0 ms
Computed 7 P flows in 2 ms.
Exported basis to /tmp/petrispot-output-17520342692969345387.kers
Total runtime 2 ms.
[2026-05-23 16:20:58] [INFO ] Implicit Places using invariants in 279 ms returned []
[2026-05-23 16:20:58] [INFO ] Flow matrix only has 14 transitions (discarded 2 similar events)
[2026-05-23 16:20:58] [INFO ] Invariant cache hit.
[2026-05-23 16:20:58] [INFO ] State equation strengthened by 2 read => feed constraints.
[2026-05-23 16:20:58] [INFO ] Implicit Places using invariants and state equation in 83 ms returned []
Implicit Place search using SMT with State Equation took 447 ms to find 0 implicit places.
Running 14 sub problems to find dead transitions.
[2026-05-23 16:20:58] [INFO ] Flow matrix only has 14 transitions (discarded 2 similar events)
[2026-05-23 16:20:58] [INFO ] Invariant cache hit.
[2026-05-23 16:20:58] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/14 variables, 14/14 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/14 variables, 7/21 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/14 variables, 0/21 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 3 (OVERLAPS) 14/28 variables, 14/35 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/28 variables, 2/37 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 Real declared 28/28 variables, and 37 constraints, problems are : Problem set: 0 solved, 14 unsolved in 625 ms.
Refiners :[Domain max(s): 14/14 constraints, 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, 14/14 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/14 variables, 7/21 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/14 variables, 0/21 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 3 (OVERLAPS) 14/28 variables, 14/35 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/28 variables, 2/37 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/28 variables, 14/51 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/28 variables, 0/51 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 7 (OVERLAPS) 0/28 variables, 0/51 constraints. Problems are: Problem set: 0 solved, 14 unsolved
No progress, stopping.
After SMT solving in domain Int declared 28/28 variables, and 51 constraints, problems are : Problem set: 0 solved, 14 unsolved in 378 ms.
Refiners :[Domain max(s): 14/14 constraints, 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 1055ms problems are : Problem set: 0 solved, 14 unsolved
Search for dead transitions found 0 dead transitions in 1075ms
Finished structural reductions in LTL mode , in 1 iterations and 1608 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 1 ms. Remains 14 /14 variables (removed 0) and now considering 16/16 (removed 0) transitions.
[2026-05-23 16:20:59] [INFO ] Flow matrix only has 14 transitions (discarded 2 similar events)
[2026-05-23 16:20:59] [INFO ] Invariant cache hit.
[2026-05-23 16:20:59] [INFO ] Implicit Places using invariants in 34 ms returned []
[2026-05-23 16:20:59] [INFO ] Flow matrix only has 14 transitions (discarded 2 similar events)
[2026-05-23 16:20:59] [INFO ] Invariant cache hit.
[2026-05-23 16:20:59] [INFO ] State equation strengthened by 2 read => feed constraints.
[2026-05-23 16:20:59] [INFO ] Implicit Places using invariants and state equation in 53 ms returned []
Implicit Place search using SMT with State Equation took 91 ms to find 0 implicit places.
Skipped dead transition search.
Finished structural reductions in LTL mode , in 1 iterations and 92 ms. Remains : 14/14 places, 16/16 transitions.
Support contains 14 out of 14 places after structural reductions.
[2026-05-23 16:20:59] [INFO ] Flatten gal took : 32 ms
[2026-05-23 16:20:59] [INFO ] Flatten gal took : 10 ms
[2026-05-23 16:20:59] [INFO ] Input system was already deterministic with 16 transitions.
Reduction of identical properties reduced properties to check from 20 to 18
RANDOM walk for 256 steps (0 resets) in 49 ms. (5 steps per ms) remains 0/18 properties
FORMULA CircadianClock-PT-000001-LTLFireability-10 FALSE TECHNIQUES REACHABILITY_KNOWLEDGE
FORMULA CircadianClock-PT-000001-LTLFireability-12 FALSE TECHNIQUES REACHABILITY_KNOWLEDGE
FORMULA CircadianClock-PT-000001-LTLFireability-03 FALSE TECHNIQUES REACHABILITY_KNOWLEDGE
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' '!((F(p0)||X(G(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 1 ms. Remains 14 /14 variables (removed 0) and now considering 16/16 (removed 0) transitions.
[2026-05-23 16:21:00] [INFO ] Flow matrix only has 14 transitions (discarded 2 similar events)
[2026-05-23 16:21:00] [INFO ] Invariant cache hit.
[2026-05-23 16:21:00] [INFO ] Implicit Places using invariants in 48 ms returned []
[2026-05-23 16:21:00] [INFO ] Flow matrix only has 14 transitions (discarded 2 similar events)
[2026-05-23 16:21:00] [INFO ] Invariant cache hit.
[2026-05-23 16:21:00] [INFO ] State equation strengthened by 2 read => feed constraints.
[2026-05-23 16:21:00] [INFO ] Implicit Places using invariants and state equation in 55 ms returned []
Implicit Place search using SMT with State Equation took 105 ms to find 0 implicit places.
Skipped dead transition search.
Finished structural reductions in LTL mode , in 1 iterations and 106 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(p0)||X(G(p1))))'
Stuttering acceptance computed with spot in 452 ms :[(NOT p0), (AND (NOT p0) (NOT p1)), (AND (NOT p0) (NOT p1))]
Running random walk in product with property : CircadianClock-PT-000001-LTLFireability-00
Product exploration explored 100000 steps with 4182 reset in 530 ms.
Stack based approach found an accepted trace after 11 steps with 1 reset with depth 5 and stack size 5 in 1 ms.
FORMULA CircadianClock-PT-000001-LTLFireability-00 FALSE TECHNIQUES STACK_TEST
Treatment of property CircadianClock-PT-000001-LTLFireability-00 finished in 1218 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((X(p0)||G(p1)))||G(p2)||X(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 1 ms. Remains 14 /14 variables (removed 0) and now considering 16/16 (removed 0) transitions.
[2026-05-23 16:21:01] [INFO ] Flow matrix only has 14 transitions (discarded 2 similar events)
[2026-05-23 16:21:01] [INFO ] Invariant cache hit.
[2026-05-23 16:21:01] [INFO ] Implicit Places using invariants in 45 ms returned []
[2026-05-23 16:21:01] [INFO ] Flow matrix only has 14 transitions (discarded 2 similar events)
[2026-05-23 16:21:01] [INFO ] Invariant cache hit.
[2026-05-23 16:21:02] [INFO ] State equation strengthened by 2 read => feed constraints.
[2026-05-23 16:21:02] [INFO ] Implicit Places using invariants and state equation in 62 ms returned []
Implicit Place search using SMT with State Equation took 109 ms to find 0 implicit places.
Skipped dead transition search.
Finished structural reductions in LTL mode , in 1 iterations and 110 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((X(p0)||G(p1)))||G(p2)||X(p1)))'
Stuttering acceptance computed with spot in 276 ms :[(AND (NOT p2) (NOT p1) (NOT p0)), (AND (NOT p1) (NOT p0)), (AND (NOT p2) (NOT p1) (NOT p0)), (AND (NOT p1) (NOT p0)), (AND (NOT p1) (NOT p0) (NOT p2))]
Running random walk in product with property : CircadianClock-PT-000001-LTLFireability-02
Product exploration explored 100000 steps with 3996 reset in 271 ms.
Stack based approach found an accepted trace after 3 steps with 0 reset with depth 4 and stack size 4 in 1 ms.
FORMULA CircadianClock-PT-000001-LTLFireability-02 FALSE TECHNIQUES STACK_TEST
Treatment of property CircadianClock-PT-000001-LTLFireability-02 finished in 708 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||G(p1))&&(X(p2)||G(p3)))))'
Support contains 6 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 16:21:02] [INFO ] Flow matrix only has 14 transitions (discarded 2 similar events)
[2026-05-23 16:21:02] [INFO ] Invariant cache hit.
[2026-05-23 16:21:02] [INFO ] Implicit Places using invariants in 49 ms returned []
[2026-05-23 16:21:02] [INFO ] Flow matrix only has 14 transitions (discarded 2 similar events)
[2026-05-23 16:21:02] [INFO ] Invariant cache hit.
[2026-05-23 16:21:02] [INFO ] State equation strengthened by 2 read => feed constraints.
[2026-05-23 16:21:02] [INFO ] Implicit Places using invariants and state equation in 60 ms returned []
Implicit Place search using SMT with State Equation took 111 ms to find 0 implicit places.
Skipped dead transition search.
Finished structural reductions in LTL mode , in 1 iterations and 112 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)||p1)&&(X(p2)||G(p3)))))'
Stuttering acceptance computed with spot in 349 ms :[(OR (AND (NOT p0) (NOT p1)) (AND (NOT p2) (NOT p3))), (OR (AND (NOT p0) (NOT p1)) (AND (NOT p2) (NOT p3))), true, (NOT p0), (NOT p2), (AND (NOT p3) (NOT p2)), (NOT p3)]
Running random walk in product with property : CircadianClock-PT-000001-LTLFireability-04
Entered a terminal (fully accepting) state of product in 9 steps with 0 reset in 1 ms.
FORMULA CircadianClock-PT-000001-LTLFireability-04 FALSE TECHNIQUES STUTTER_TEST
Treatment of property CircadianClock-PT-000001-LTLFireability-04 finished in 520 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) U (X(X(X(X(p1)))) U p1)))'
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 0 ms. Remains 14 /14 variables (removed 0) and now considering 16/16 (removed 0) transitions.
[2026-05-23 16:21:03] [INFO ] Flow matrix only has 14 transitions (discarded 2 similar events)
[2026-05-23 16:21:03] [INFO ] Invariant cache hit.
[2026-05-23 16:21:03] [INFO ] Implicit Places using invariants in 45 ms returned []
[2026-05-23 16:21:03] [INFO ] Flow matrix only has 14 transitions (discarded 2 similar events)
[2026-05-23 16:21:03] [INFO ] Invariant cache hit.
[2026-05-23 16:21:03] [INFO ] State equation strengthened by 2 read => feed constraints.
[2026-05-23 16:21:03] [INFO ] Implicit Places using invariants and state equation in 54 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 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' '!((X(p0) U (X(X(X(X(p1)))) U p1)))'
Stuttering acceptance computed with spot in 324 ms :[(NOT p1), (AND (NOT p0) (NOT p1)), (NOT p1), (AND p0 (NOT p1)), (NOT p1), (NOT p1), true]
Running random walk in product with property : CircadianClock-PT-000001-LTLFireability-05
Entered a terminal (fully accepting) state of product in 21 steps with 5 reset in 0 ms.
FORMULA CircadianClock-PT-000001-LTLFireability-05 FALSE TECHNIQUES STUTTER_TEST
Treatment of property CircadianClock-PT-000001-LTLFireability-05 finished in 475 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 8 ms. Remains 14 /14 variables (removed 0) and now considering 16/16 (removed 0) transitions.
[2026-05-23 16:21:03] [INFO ] Flow matrix only has 14 transitions (discarded 2 similar events)
[2026-05-23 16:21:03] [INFO ] Invariant cache hit.
[2026-05-23 16:21:03] [INFO ] Implicit Places using invariants in 53 ms returned []
[2026-05-23 16:21:03] [INFO ] Flow matrix only has 14 transitions (discarded 2 similar events)
[2026-05-23 16:21:03] [INFO ] Invariant cache hit.
[2026-05-23 16:21:03] [INFO ] State equation strengthened by 2 read => feed constraints.
[2026-05-23 16:21:03] [INFO ] Implicit Places using invariants and state equation in 63 ms returned []
Implicit Place search using SMT with State Equation took 139 ms to find 0 implicit places.
[2026-05-23 16:21:03] [INFO ] Redundant transitions in 20 ms returned []
Skipped dead transition search.
Finished structural reductions in SI_LTL mode , in 1 iterations and 176 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 64 ms :[(NOT p0)]
Running random walk in product with property : CircadianClock-PT-000001-LTLFireability-06
Product exploration explored 100000 steps with 0 reset in 239 ms.
Stack based approach found an accepted trace after 4 steps with 0 reset with depth 5 and stack size 5 in 1 ms.
FORMULA CircadianClock-PT-000001-LTLFireability-06 FALSE TECHNIQUES STACK_TEST
Treatment of property CircadianClock-PT-000001-LTLFireability-06 finished in 518 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 U p1) U p2)&&G(p3))||(((p0 U p1) U p2)&&F(p0))))))'
Support contains 6 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 2 ms. Remains 14 /14 variables (removed 0) and now considering 16/16 (removed 0) transitions.
[2026-05-23 16:21:04] [INFO ] Flow matrix only has 14 transitions (discarded 2 similar events)
[2026-05-23 16:21:04] [INFO ] Invariant cache hit.
[2026-05-23 16:21:04] [INFO ] Implicit Places using invariants in 56 ms returned []
[2026-05-23 16:21:04] [INFO ] Flow matrix only has 14 transitions (discarded 2 similar events)
[2026-05-23 16:21:04] [INFO ] Invariant cache hit.
[2026-05-23 16:21:04] [INFO ] State equation strengthened by 2 read => feed constraints.
[2026-05-23 16:21:04] [INFO ] Implicit Places using invariants and state equation in 55 ms returned []
Implicit Place search using SMT with State Equation took 113 ms to find 0 implicit places.
[2026-05-23 16:21:04] [INFO ] Redundant transitions in 18 ms returned []
Skipped dead transition search.
Finished structural reductions in SI_LTL mode , in 1 iterations and 141 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 U p1) U p2)&&G(p3))||(((p0 U p1) U p2)&&F(p0))))))'
Stuttering acceptance computed with spot in 467 ms :[(OR (NOT p2) (AND (NOT p0) (NOT p3))), (OR (NOT p2) (AND (NOT p0) (NOT p3))), (AND p2 (NOT p1) (NOT p0) (NOT p3)), (NOT p2), (OR (AND (NOT p0) (NOT p2)) (AND (NOT p0) (NOT p3))), (AND (NOT p0) (NOT p3)), (AND (NOT p0) (NOT p2))]
Running random walk in product with property : CircadianClock-PT-000001-LTLFireability-07
Product exploration explored 100000 steps with 16875 reset in 540 ms.
Stack based approach found an accepted trace after 13 steps with 2 reset with depth 6 and stack size 5 in 0 ms.
FORMULA CircadianClock-PT-000001-LTLFireability-07 FALSE TECHNIQUES STACK_TEST
Treatment of property CircadianClock-PT-000001-LTLFireability-07 finished in 1209 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)&&F((!p1&&X((!p1 U (!p2||G(!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 1 ms. Remains 14 /14 variables (removed 0) and now considering 16/16 (removed 0) transitions.
[2026-05-23 16:21:05] [INFO ] Flow matrix only has 14 transitions (discarded 2 similar events)
[2026-05-23 16:21:05] [INFO ] Invariant cache hit.
[2026-05-23 16:21:05] [INFO ] Implicit Places using invariants in 49 ms returned []
[2026-05-23 16:21:05] [INFO ] Flow matrix only has 14 transitions (discarded 2 similar events)
[2026-05-23 16:21:05] [INFO ] Invariant cache hit.
[2026-05-23 16:21:05] [INFO ] State equation strengthened by 2 read => feed constraints.
[2026-05-23 16:21:05] [INFO ] Implicit Places using invariants and state equation in 84 ms returned []
Implicit Place search using SMT with State Equation took 138 ms to find 0 implicit places.
Skipped dead transition search.
Finished structural reductions in LTL mode , in 1 iterations and 139 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)&&F((p1&&X((p1 U (!p2||G(p1)))))))))'
Stuttering acceptance computed with spot in 199 ms :[(OR (NOT p1) (NOT p0)), (NOT p0), (NOT p1), (AND (NOT p1) p2)]
Running random walk in product with property : CircadianClock-PT-000001-LTLFireability-08
Product exploration explored 100000 steps with 29698 reset in 262 ms.
Stack based approach found an accepted trace after 4 steps with 1 reset with depth 3 and stack size 3 in 0 ms.
FORMULA CircadianClock-PT-000001-LTLFireability-08 FALSE TECHNIQUES STACK_TEST
Treatment of property CircadianClock-PT-000001-LTLFireability-08 finished in 655 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(F((X(X(p0))||(F(p2)&&p1)))))'
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 16:21:06] [INFO ] Flow matrix only has 14 transitions (discarded 2 similar events)
[2026-05-23 16:21:06] [INFO ] Invariant cache hit.
[2026-05-23 16:21:06] [INFO ] Implicit Places using invariants in 37 ms returned []
[2026-05-23 16:21:06] [INFO ] Flow matrix only has 14 transitions (discarded 2 similar events)
[2026-05-23 16:21:06] [INFO ] Invariant cache hit.
[2026-05-23 16:21:06] [INFO ] State equation strengthened by 2 read => feed constraints.
[2026-05-23 16:21:06] [INFO ] Implicit Places using invariants and state equation in 58 ms returned []
Implicit Place search using SMT with State Equation took 97 ms to find 0 implicit places.
Skipped dead transition search.
Finished structural reductions in LTL mode , in 1 iterations and 99 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(F((X(X(p0))||(F(p2)&&p1)))))'
Stuttering acceptance computed with spot in 277 ms :[(OR (AND (NOT p0) (NOT p2)) (AND (NOT p0) (NOT p1))), (AND (NOT p2) (NOT p0)), (AND (NOT p2) (NOT p0)), (OR (AND (NOT p0) (NOT p1)) (AND (NOT p0) (NOT p2))), (OR (AND (NOT p0) (NOT p1)) (AND (NOT p0) (NOT p2))), (OR (AND (NOT p0) (NOT p1)) (AND (NOT p0) (NOT p2)))]
Running random walk in product with property : CircadianClock-PT-000001-LTLFireability-09
Product exploration explored 100000 steps with 10019 reset in 301 ms.
Stack based approach found an accepted trace after 4 steps with 0 reset with depth 5 and stack size 5 in 0 ms.
FORMULA CircadianClock-PT-000001-LTLFireability-09 FALSE TECHNIQUES STACK_TEST
Treatment of property CircadianClock-PT-000001-LTLFireability-09 finished in 725 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)&&G(p1))))'
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 16:21:06] [INFO ] Flow matrix only has 14 transitions (discarded 2 similar events)
[2026-05-23 16:21:06] [INFO ] Invariant cache hit.
[2026-05-23 16:21:06] [INFO ] Implicit Places using invariants in 32 ms returned []
[2026-05-23 16:21:06] [INFO ] Flow matrix only has 14 transitions (discarded 2 similar events)
[2026-05-23 16:21:06] [INFO ] Invariant cache hit.
[2026-05-23 16:21:06] [INFO ] State equation strengthened by 2 read => feed constraints.
[2026-05-23 16:21:06] [INFO ] Implicit Places using invariants and state equation in 41 ms returned []
Implicit Place search using SMT with State Equation took 75 ms to find 0 implicit places.
Skipped dead transition search.
Finished structural reductions in LTL mode , in 1 iterations and 76 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)&&G(p1))))'
Stuttering acceptance computed with spot in 158 ms :[true, (OR (NOT p0) (NOT p1)), (OR (NOT p0) (NOT p1)), (OR (NOT p1) (NOT p0)), (NOT p1)]
Running random walk in product with property : CircadianClock-PT-000001-LTLFireability-11
Entered a terminal (fully accepting) state of product in 1 steps with 0 reset in 0 ms.
FORMULA CircadianClock-PT-000001-LTLFireability-11 FALSE TECHNIQUES STUTTER_TEST
Treatment of property CircadianClock-PT-000001-LTLFireability-11 finished in 269 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)) U (X(p1)&&F(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 0 ms. Remains 14 /14 variables (removed 0) and now considering 16/16 (removed 0) transitions.
[2026-05-23 16:21:07] [INFO ] Flow matrix only has 14 transitions (discarded 2 similar events)
[2026-05-23 16:21:07] [INFO ] Invariant cache hit.
[2026-05-23 16:21:07] [INFO ] Implicit Places using invariants in 34 ms returned []
[2026-05-23 16:21:07] [INFO ] Flow matrix only has 14 transitions (discarded 2 similar events)
[2026-05-23 16:21:07] [INFO ] Invariant cache hit.
[2026-05-23 16:21:07] [INFO ] State equation strengthened by 2 read => feed constraints.
[2026-05-23 16:21:07] [INFO ] Implicit Places using invariants and state equation in 54 ms returned []
Implicit Place search using SMT with State Equation took 90 ms to find 0 implicit places.
Skipped dead transition search.
Finished structural reductions in LTL mode , in 1 iterations and 90 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)) U (X(p1)&&F(p2))))'
Stuttering acceptance computed with spot in 186 ms :[(OR (NOT p2) (NOT p1)), (NOT p1), (NOT p2), (NOT p0)]
Running random walk in product with property : CircadianClock-PT-000001-LTLFireability-13
Product exploration explored 100000 steps with 31 reset in 168 ms.
Stack based approach found an accepted trace after 8 steps with 0 reset with depth 9 and stack size 8 in 1 ms.
FORMULA CircadianClock-PT-000001-LTLFireability-13 FALSE TECHNIQUES STACK_TEST
Treatment of property CircadianClock-PT-000001-LTLFireability-13 finished in 493 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)))'
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 2 ms. Remains 14 /14 variables (removed 0) and now considering 16/16 (removed 0) transitions.
[2026-05-23 16:21:07] [INFO ] Flow matrix only has 14 transitions (discarded 2 similar events)
[2026-05-23 16:21:07] [INFO ] Invariant cache hit.
[2026-05-23 16:21:07] [INFO ] Implicit Places using invariants in 40 ms returned []
[2026-05-23 16:21:07] [INFO ] Flow matrix only has 14 transitions (discarded 2 similar events)
[2026-05-23 16:21:07] [INFO ] Invariant cache hit.
[2026-05-23 16:21:07] [INFO ] State equation strengthened by 2 read => feed constraints.
[2026-05-23 16:21:07] [INFO ] Implicit Places using invariants and state equation in 45 ms returned []
Implicit Place search using SMT with State Equation took 87 ms to find 0 implicit places.
[2026-05-23 16:21:07] [INFO ] Redundant transitions in 15 ms returned []
Skipped dead transition search.
Finished structural reductions in SI_LTL mode , in 1 iterations and 111 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)))'
Stuttering acceptance computed with spot in 81 ms :[(NOT p0), (NOT p0)]
Running random walk in product with property : CircadianClock-PT-000001-LTLFireability-14
Product exploration explored 100000 steps with 3014 reset in 176 ms.
Stack based approach found an accepted trace after 152 steps with 3 reset with depth 15 and stack size 14 in 2 ms.
FORMULA CircadianClock-PT-000001-LTLFireability-14 FALSE TECHNIQUES STACK_TEST
Treatment of property CircadianClock-PT-000001-LTLFireability-14 finished in 396 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(G(p1))||F(p2)) U p3)))'
Support contains 9 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 16:21:07] [INFO ] Flow matrix only has 14 transitions (discarded 2 similar events)
[2026-05-23 16:21:07] [INFO ] Invariant cache hit.
[2026-05-23 16:21:07] [INFO ] Implicit Places using invariants in 31 ms returned []
[2026-05-23 16:21:07] [INFO ] Flow matrix only has 14 transitions (discarded 2 similar events)
[2026-05-23 16:21:07] [INFO ] Invariant cache hit.
[2026-05-23 16:21:07] [INFO ] State equation strengthened by 2 read => feed constraints.
[2026-05-23 16:21:07] [INFO ] Implicit Places using invariants and state equation in 39 ms returned []
Implicit Place search using SMT with State Equation took 72 ms to find 0 implicit places.
Skipped dead transition search.
Finished structural reductions in LTL mode , in 1 iterations and 73 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(G(p1))||F(p2)) U p3)))'
Stuttering acceptance computed with spot in 253 ms :[(AND (NOT p0) (NOT p3)), (AND (NOT p0) (NOT p1) (NOT p2)), (AND (NOT p0) (NOT p3)), (NOT p2), (AND (NOT p2) (NOT p1)), (NOT p3)]
Running random walk in product with property : CircadianClock-PT-000001-LTLFireability-15
Product exploration explored 100000 steps with 17917 reset in 111 ms.
Stack based approach found an accepted trace after 9 steps with 0 reset with depth 10 and stack size 10 in 0 ms.
FORMULA CircadianClock-PT-000001-LTLFireability-15 FALSE TECHNIQUES STACK_TEST
Treatment of property CircadianClock-PT-000001-LTLFireability-15 finished in 472 ms.
All properties solved by simple procedures.
Total runtime 11149 ms.

BK_STOP 1779553268421

--------------------
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
+ [[ LTLFireability = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution LTLFireability -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 LTLFireability -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-000001"
export BK_EXAMINATION="LTLFireability"
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-000001, examination is LTLFireability"
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-177946901100172"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/CircadianClock-PT-000001.tgz
mv CircadianClock-PT-000001 execution
cd execution
if [ "LTLFireability" = "ReachabilityDeadlock" ] || [ "LTLFireability" = "UpperBounds" ] || [ "LTLFireability" = "QuasiLiveness" ] || [ "LTLFireability" = "StableMarking" ] || [ "LTLFireability" = "Liveness" ] || [ "LTLFireability" = "OneSafe" ] || [ "LTLFireability" = "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 [ "LTLFireability" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "LTLFireability" != "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 "LTLFireability.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 '' LTLFireability.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "LTLFireability" = "ReachabilityDeadlock" ] || [ "LTLFireability" = "QuasiLiveness" ] || [ "LTLFireability" = "StableMarking" ] || [ "LTLFireability" = "Liveness" ] || [ "LTLFireability" = "OneSafe" ] ; then
echo "FORMULA_NAME LTLFireability"
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 ;