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.r194-tall-177969914100396.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2026-input.qcow2 backing_fmt=qcow2 cluster_size=65536 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
.....................................................
=====================================================================
Generated by BenchKit 2-5973
Executing tool itstools
Input is NQueens-PT-08, examination is LTLFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r194-tall-177969914100396
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 684K
-rw-r--r-- 1 mcc users 7.3K Mar 8 06:29 CTLCardinality.txt
-rw-r--r-- 1 mcc users 80K Mar 8 06:29 CTLCardinality.xml
-rw-r--r-- 1 mcc users 6.6K Mar 8 06:29 CTLFireability.txt
-rw-r--r-- 1 mcc users 56K Mar 8 06:29 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Mar 3 18:30 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.5K Mar 3 18:30 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 3.4K Mar 16 08:17 LTLCardinality.txt
-rw-r--r-- 1 mcc users 24K Mar 16 08:17 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.5K Mar 16 08:18 LTLFireability.txt
-rw-r--r-- 1 mcc users 19K Mar 16 08:18 LTLFireability.xml
-rw-r--r-- 1 mcc users 20K Mar 8 06:30 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 220K Mar 8 06:30 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 15K Mar 8 06:29 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 117K Mar 8 06:29 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K Mar 16 08:18 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.6K Mar 16 08:18 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 equiv_col
-rw-r--r-- 1 mcc users 3 Mar 3 18:30 instance
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 iscolored
-rw-r--r-- 1 mcc users 65K 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 NQueens-PT-08-LTLFireability-00
FORMULA_NAME NQueens-PT-08-LTLFireability-01
FORMULA_NAME NQueens-PT-08-LTLFireability-02
FORMULA_NAME NQueens-PT-08-LTLFireability-03
FORMULA_NAME NQueens-PT-08-LTLFireability-04
FORMULA_NAME NQueens-PT-08-LTLFireability-05
FORMULA_NAME NQueens-PT-08-LTLFireability-06
FORMULA_NAME NQueens-PT-08-LTLFireability-07
FORMULA_NAME NQueens-PT-08-LTLFireability-08
FORMULA_NAME NQueens-PT-08-LTLFireability-09
FORMULA_NAME NQueens-PT-08-LTLFireability-10
FORMULA_NAME NQueens-PT-08-LTLFireability-11
FORMULA_NAME NQueens-PT-08-LTLFireability-12
FORMULA_NAME NQueens-PT-08-LTLFireability-13
FORMULA_NAME NQueens-PT-08-LTLFireability-14
FORMULA_NAME NQueens-PT-08-LTLFireability-15

=== Now, execution of the tool begins

BK_START 1779770888011

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=LTLFireability
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=NQueens-PT-08
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
LTLFireability PT
Running Version 202604301425
[2026-05-26 04:48:09] [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]
[2026-05-26 04:48:09] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-26 04:48:09] [INFO ] Load time of PNML (sax parser for PT used): 68 ms
[2026-05-26 04:48:09] [INFO ] Transformed 112 places.
[2026-05-26 04:48:09] [INFO ] Transformed 64 transitions.
[2026-05-26 04:48:09] [INFO ] Found NUPN structural information;
[2026-05-26 04:48:09] [INFO ] Parsed PT model containing 112 places and 64 transitions and 320 arcs in 155 ms.
Parsed 16 properties from file /home/mcc/execution/LTLFireability.xml in 9 ms.
Working with output stream class java.io.PrintStream
Initial state reduction rules removed 3 formulas.
Reduce places removed 2 places and 0 transitions.
FORMULA NQueens-PT-08-LTLFireability-09 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA NQueens-PT-08-LTLFireability-10 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA NQueens-PT-08-LTLFireability-14 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Support contains 39 out of 110 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 110/110 places, 64/64 transitions.
Reduce places removed 64 places and 0 transitions.
Iterating post reduction 0 with 64 rules applied. Total rules applied 64 place count 46 transition count 64
Applied a total of 64 rules in 13 ms. Remains 46 /110 variables (removed 64) and now considering 64/64 (removed 0) transitions.
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-7500983656262286054.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-5070997190107603609.kers'
[2026-05-26 04:48:09] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-7500983656262286054.kers, --Pflows, --basisKERS=/tmp/petrispot-output-5070997190107603609.kers]
Culled 0 columns in 0 ms.
// Phase 1: matrix 64 rows 46 cols 256 entries
Finished phase 1 with 12 SingleSign rule and 27 generalized
[2026-05-26 04:48:09] [INFO ] Computed 7 invariants in 1 ms
Computed 7 P flows in 3 ms.
Exported basis to /tmp/petrispot-output-5070997190107603609.kers
Total runtime 3 ms.
[2026-05-26 04:48:09] [INFO ] Implicit Places using invariants in 205 ms returned []
[2026-05-26 04:48:09] [INFO ] Invariant cache hit.
[2026-05-26 04:48:09] [INFO ] Implicit Places using invariants and state equation in 206 ms returned [16, 31]
Discarding 2 places :
Implicit Place search using SMT with State Equation took 453 ms to find 2 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 44/110 places, 64/64 transitions.
Applied a total of 0 rules in 1 ms. Remains 44 /44 variables (removed 0) and now considering 64/64 (removed 0) transitions.
Finished structural reductions in LTL mode , in 2 iterations and 481 ms. Remains : 44/110 places, 64/64 transitions.
Starting structural reductions in LTL mode, iteration 0 : 44/44 places, 64/64 transitions.
Applied a total of 0 rules in 1 ms. Remains 44 /44 variables (removed 0) and now considering 64/64 (removed 0) transitions.
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-15483801635752741893.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-12930332004910669310.kers'
[2026-05-26 04:48:10] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-15483801635752741893.kers, --Pflows, --basisKERS=/tmp/petrispot-output-12930332004910669310.kers]
Culled 0 columns in 0 ms.
// Phase 1: matrix 64 rows 44 cols 254 entries
Finished phase 1 with 13 SingleSign rule and 26 generalized
[2026-05-26 04:48:10] [INFO ] Computed 5 invariants in 0 ms
Computed 5 P flows in 1 ms.
Exported basis to /tmp/petrispot-output-12930332004910669310.kers
Total runtime 1 ms.
[2026-05-26 04:48:10] [INFO ] Implicit Places using invariants in 64 ms returned []
[2026-05-26 04:48:10] [INFO ] Invariant cache hit.
[2026-05-26 04:48:10] [INFO ] Implicit Places using invariants and state equation in 166 ms returned []
Implicit Place search using SMT with State Equation took 234 ms to find 0 implicit places.
Running 0 sub problems to find dead transitions.
Search for dead transitions found 0 dead transitions in 1ms
Finished structural reductions in LTL mode , in 1 iterations and 255 ms. Remains : 44/44 places, 64/64 transitions.
Support contains 39 out of 44 places after structural reductions.
[2026-05-26 04:48:10] [INFO ] Flatten gal took : 27 ms
[2026-05-26 04:48:10] [INFO ] Flatten gal took : 13 ms
[2026-05-26 04:48:10] [INFO ] Input system was already deterministic with 64 transitions.
Reduction of identical properties reduced properties to check from 32 to 29
RANDOM walk for 40 steps (3 resets) in 22 ms. (1 steps per ms) remains 0/29 properties
FORMULA NQueens-PT-08-LTLFireability-08 FALSE TECHNIQUES REACHABILITY_KNOWLEDGE
FORMULA NQueens-PT-08-LTLFireability-15 FALSE TECHNIQUES REACHABILITY_KNOWLEDGE
Computed a total of 44 stabilizing places and 64 stable transitions
Complete graph has no SCC; deadlocks are unavoidable. place count 44 transition count 64
Detected that all paths lead to deadlock. Applying this knowledge to assert that all AP eventually converge (and all enablings converge to false).
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(G(((F(G(p0)) U p0)||X(p1))))))'
Support contains 8 out of 44 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 44/44 places, 64/64 transitions.
Applied a total of 0 rules in 1 ms. Remains 44 /44 variables (removed 0) and now considering 64/64 (removed 0) transitions.
[2026-05-26 04:48:11] [INFO ] Invariant cache hit.
[2026-05-26 04:48:11] [INFO ] Implicit Places using invariants in 203 ms returned []
[2026-05-26 04:48:11] [INFO ] Invariant cache hit.
[2026-05-26 04:48:11] [INFO ] Implicit Places using invariants and state equation in 438 ms returned [29, 43]
Discarding 2 places :
Implicit Place search using SMT with State Equation took 646 ms to find 2 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 42/44 places, 64/64 transitions.
Applied a total of 0 rules in 2 ms. Remains 42 /42 variables (removed 0) and now considering 64/64 (removed 0) transitions.
Finished structural reductions in LTL mode , in 2 iterations and 649 ms. Remains : 42/44 places, 64/64 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(G(((F(G(p0)) U p0)||X(p1))))))'
Stuttering acceptance computed with spot in 313 ms :[(AND (NOT p0) (NOT p1)), (AND (NOT p0) (NOT p1)), (AND (NOT p0) (NOT p1)), (AND (NOT p1) (NOT p0)), (NOT p0)]
Running random walk in product with property : NQueens-PT-08-LTLFireability-00
Stuttering criterion allowed to conclude after 7 steps with 0 reset in 2 ms.
FORMULA NQueens-PT-08-LTLFireability-00 FALSE TECHNIQUES STUTTER_TEST
Treatment of property NQueens-PT-08-LTLFireability-00 finished in 1050 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((((G(p0) U (p1 U p2))||G(p3)) U p4)))))'
Support contains 18 out of 44 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 44/44 places, 64/64 transitions.
Applied a total of 0 rules in 0 ms. Remains 44 /44 variables (removed 0) and now considering 64/64 (removed 0) transitions.
[2026-05-26 04:48:12] [INFO ] Invariant cache hit.
[2026-05-26 04:48:12] [INFO ] Implicit Places using invariants in 145 ms returned []
[2026-05-26 04:48:12] [INFO ] Invariant cache hit.
[2026-05-26 04:48:12] [INFO ] Implicit Places using invariants and state equation in 709 ms returned [29, 43]
Discarding 2 places :
Implicit Place search using SMT with State Equation took 859 ms to find 2 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 42/44 places, 64/64 transitions.
Applied a total of 0 rules in 1 ms. Remains 42 /42 variables (removed 0) and now considering 64/64 (removed 0) transitions.
Finished structural reductions in LTL mode , in 2 iterations and 860 ms. Remains : 42/44 places, 64/64 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((((G(p0) U (p1 U p2))||G(p3)) U p4)))))'
Stuttering acceptance computed with spot in 570 ms :[(NOT p4), (NOT p4), (NOT p4), (NOT p4), true, (NOT p0), (NOT p2), (NOT p2), (NOT p3), (AND (NOT p2) (NOT p3)), (AND (NOT p0) (NOT p3)), (AND (NOT p2) (NOT p3))]
Running random walk in product with property : NQueens-PT-08-LTLFireability-01
Entered a terminal (fully accepting) state of product in 3 steps with 0 reset in 1 ms.
FORMULA NQueens-PT-08-LTLFireability-01 FALSE TECHNIQUES STUTTER_TEST
Treatment of property NQueens-PT-08-LTLFireability-01 finished in 1497 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(p0)&&(X(!p1) U ((X(!p1)&&G((!p2&&X(!p3))))||X(G(!p1))))))))'
Support contains 13 out of 44 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 44/44 places, 64/64 transitions.
Applied a total of 0 rules in 2 ms. Remains 44 /44 variables (removed 0) and now considering 64/64 (removed 0) transitions.
[2026-05-26 04:48:13] [INFO ] Invariant cache hit.
[2026-05-26 04:48:13] [INFO ] Implicit Places using invariants in 157 ms returned []
[2026-05-26 04:48:13] [INFO ] Invariant cache hit.
[2026-05-26 04:48:14] [INFO ] Implicit Places using invariants and state equation in 468 ms returned [43]
Discarding 1 places :
Implicit Place search using SMT with State Equation took 634 ms to find 1 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 43/44 places, 64/64 transitions.
Applied a total of 0 rules in 1 ms. Remains 43 /43 variables (removed 0) and now considering 64/64 (removed 0) transitions.
Finished structural reductions in LTL mode , in 2 iterations and 638 ms. Remains : 43/44 places, 64/64 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(p0)&&(X(!p1) U ((X(!p1)&&G((!p2&&X(!p3))))||X(G(!p1))))))))'
Stuttering acceptance computed with spot in 361 ms :[true, (OR (AND p1 p2) (AND p1 p3)), (OR p3 p2), (OR (NOT p0) p1), p1, (OR (NOT p0) p1), (OR (NOT p0) p1), (OR (NOT p0) p1), (OR (NOT p0) p1), p1]
Running random walk in product with property : NQueens-PT-08-LTLFireability-02
Entered a terminal (fully accepting) state of product in 3 steps with 0 reset in 0 ms.
FORMULA NQueens-PT-08-LTLFireability-02 FALSE TECHNIQUES STUTTER_TEST
Treatment of property NQueens-PT-08-LTLFireability-02 finished in 1048 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((X(G((p1&&(!p2 U (G(!p2)||(!p2&&(!p3 U (p4||G(!p3)))))))))||p0))))'
Support contains 7 out of 44 places. Attempting structural reductions.
Property had overlarge support with respect to TGBA, discarding it for now.
Starting structural reductions in LTL mode, iteration 0 : 44/44 places, 64/64 transitions.
Applied a total of 0 rules in 1 ms. Remains 44 /44 variables (removed 0) and now considering 64/64 (removed 0) transitions.
[2026-05-26 04:48:14] [INFO ] Invariant cache hit.
[2026-05-26 04:48:14] [INFO ] Implicit Places using invariants in 155 ms returned []
[2026-05-26 04:48:14] [INFO ] Invariant cache hit.
[2026-05-26 04:48:15] [INFO ] Implicit Places using invariants and state equation in 373 ms returned [29, 43]
Discarding 2 places :
Implicit Place search using SMT with State Equation took 538 ms to find 2 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 42/44 places, 64/64 transitions.
Applied a total of 0 rules in 1 ms. Remains 42 /42 variables (removed 0) and now considering 64/64 (removed 0) transitions.
Finished structural reductions in LTL mode , in 2 iterations and 540 ms. Remains : 42/44 places, 64/64 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((X(G((p1&&(!p2 U (G(!p2)||(!p2&&(!p3 U (p4||G(!p3)))))))))||p0))))'
Stuttering acceptance computed with spot in 143 ms :[true, (OR (AND (NOT p0) (NOT p1)) (AND (NOT p0) p2)), (OR (AND (NOT p0) (NOT p1)) (AND (NOT p0) p2)), (OR (NOT p1) p2)]
Running random walk in product with property : NQueens-PT-08-LTLFireability-03
Entered a terminal (fully accepting) state of product in 10 steps with 1 reset in 0 ms.
FORMULA NQueens-PT-08-LTLFireability-03 FALSE TECHNIQUES STUTTER_TEST
Treatment of property NQueens-PT-08-LTLFireability-03 finished in 727 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(G(p0)))) U G((p1||F(p2)))))'
Support contains 11 out of 44 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 44/44 places, 64/64 transitions.
Applied a total of 0 rules in 1 ms. Remains 44 /44 variables (removed 0) and now considering 64/64 (removed 0) transitions.
[2026-05-26 04:48:15] [INFO ] Invariant cache hit.
[2026-05-26 04:48:15] [INFO ] Implicit Places using invariants in 154 ms returned []
[2026-05-26 04:48:15] [INFO ] Invariant cache hit.
[2026-05-26 04:48:15] [INFO ] Implicit Places using invariants and state equation in 424 ms returned [29]
Discarding 1 places :
Implicit Place search using SMT with State Equation took 582 ms to find 1 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 43/44 places, 64/64 transitions.
Applied a total of 0 rules in 1 ms. Remains 43 /43 variables (removed 0) and now considering 64/64 (removed 0) transitions.
Finished structural reductions in LTL mode , in 2 iterations and 584 ms. Remains : 43/44 places, 64/64 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(G(p0)))) U G((F(p1)||p2))))'
Stuttering acceptance computed with spot in 548 ms :[(AND (NOT p1) (NOT p2)), (AND (NOT p1) (NOT p0)), (AND (NOT p1) (NOT p2)), (AND (NOT p2) (NOT p1) (NOT p0)), (AND (NOT p1) (NOT p0)), (AND (NOT p1) (NOT p0) (NOT p2)), (AND (NOT p2) (NOT p1) (NOT p0)), (AND (NOT p1) (NOT p0)), (AND (NOT p1) (NOT p0) (NOT p2)), (AND (NOT p2) (NOT p1) (NOT p0)), (NOT p1), (AND (NOT p1) (NOT p2) (NOT p0)), (AND (NOT p1) (NOT p2) p0), (AND (NOT p1) (NOT p2) p0)]
Running random walk in product with property : NQueens-PT-08-LTLFireability-04
Stuttering criterion allowed to conclude after 21 steps with 2 reset in 1 ms.
FORMULA NQueens-PT-08-LTLFireability-04 FALSE TECHNIQUES STUTTER_TEST
Treatment of property NQueens-PT-08-LTLFireability-04 finished in 1174 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(((p0 U G(p1))&&X(G(p2)))))'
Support contains 7 out of 44 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 44/44 places, 64/64 transitions.
Applied a total of 0 rules in 4 ms. Remains 44 /44 variables (removed 0) and now considering 64/64 (removed 0) transitions.
[2026-05-26 04:48:16] [INFO ] Invariant cache hit.
[2026-05-26 04:48:16] [INFO ] Implicit Places using invariants in 179 ms returned []
[2026-05-26 04:48:16] [INFO ] Invariant cache hit.
[2026-05-26 04:48:17] [INFO ] Implicit Places using invariants and state equation in 487 ms returned [29, 43]
Discarding 2 places :
Implicit Place search using SMT with State Equation took 670 ms to find 2 implicit places.
Starting structural reductions in SI_LTL mode, iteration 1 : 42/44 places, 64/64 transitions.
Applied a total of 0 rules in 6 ms. Remains 42 /42 variables (removed 0) and now considering 64/64 (removed 0) transitions.
Finished structural reductions in SI_LTL mode , in 2 iterations and 680 ms. Remains : 42/44 places, 64/64 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 U G(p1))&&X(G(p2)))))'
Stuttering acceptance computed with spot in 201 ms :[(OR (NOT p1) (NOT p2)), (NOT p1), (NOT p2), (NOT p1), (AND (NOT p1) (NOT p2))]
Running random walk in product with property : NQueens-PT-08-LTLFireability-05
Stuttering criterion allowed to conclude after 14 steps with 1 reset in 1 ms.
FORMULA NQueens-PT-08-LTLFireability-05 FALSE TECHNIQUES STUTTER_TEST
Treatment of property NQueens-PT-08-LTLFireability-05 finished in 928 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 4 out of 44 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 44/44 places, 64/64 transitions.
Applied a total of 0 rules in 4 ms. Remains 44 /44 variables (removed 0) and now considering 64/64 (removed 0) transitions.
[2026-05-26 04:48:17] [INFO ] Invariant cache hit.
[2026-05-26 04:48:17] [INFO ] Implicit Places using invariants in 183 ms returned []
[2026-05-26 04:48:17] [INFO ] Invariant cache hit.
[2026-05-26 04:48:18] [INFO ] Implicit Places using invariants and state equation in 456 ms returned [29, 43]
Discarding 2 places :
Implicit Place search using SMT with State Equation took 642 ms to find 2 implicit places.
Starting structural reductions in SI_LTL mode, iteration 1 : 42/44 places, 64/64 transitions.
Applied a total of 0 rules in 5 ms. Remains 42 /42 variables (removed 0) and now considering 64/64 (removed 0) transitions.
Finished structural reductions in SI_LTL mode , in 2 iterations and 652 ms. Remains : 42/44 places, 64/64 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 86 ms :[(NOT p0), (NOT p0)]
Running random walk in product with property : NQueens-PT-08-LTLFireability-06
Stuttering criterion allowed to conclude after 5 steps with 0 reset in 1 ms.
FORMULA NQueens-PT-08-LTLFireability-06 FALSE TECHNIQUES STUTTER_TEST
Treatment of property NQueens-PT-08-LTLFireability-06 finished in 761 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(G((X(X(X(p0)))||!(p1 U p2))))&&X(p1))))'
Support contains 10 out of 44 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 44/44 places, 64/64 transitions.
Applied a total of 0 rules in 2 ms. Remains 44 /44 variables (removed 0) and now considering 64/64 (removed 0) transitions.
[2026-05-26 04:48:18] [INFO ] Invariant cache hit.
[2026-05-26 04:48:18] [INFO ] Implicit Places using invariants in 171 ms returned []
[2026-05-26 04:48:18] [INFO ] Invariant cache hit.
[2026-05-26 04:48:18] [INFO ] Implicit Places using invariants and state equation in 415 ms returned [29, 43]
Discarding 2 places :
Implicit Place search using SMT with State Equation took 591 ms to find 2 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 42/44 places, 64/64 transitions.
Applied a total of 0 rules in 2 ms. Remains 42 /42 variables (removed 0) and now considering 64/64 (removed 0) transitions.
Finished structural reductions in LTL mode , in 2 iterations and 595 ms. Remains : 42/44 places, 64/64 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(G((X(X(X(p0)))||!(p1 U p2))))&&X(p1))))'
Stuttering acceptance computed with spot in 877 ms :[(OR (NOT p1) (AND (NOT p0) p2)), (OR (NOT p1) (AND (NOT p0) p2)), (OR (NOT p1) (AND (NOT p0) p2)), true, (AND (NOT p0) p2), (AND (NOT p0) p2), (AND (NOT p0) p2), (AND (NOT p0) p2), (AND (NOT p0) p2), (AND (NOT p0) p2), (AND (NOT p0) p2), (AND (NOT p0) p2), (AND (NOT p0) p2), (AND (NOT p0) p2), (AND (NOT p0) p2), (AND (NOT p0) p2), (AND (NOT p0) p2), (AND (NOT p0) p2), (AND (NOT p0) p2), false]
Running random walk in product with property : NQueens-PT-08-LTLFireability-07
Entered a terminal (fully accepting) state of product in 2 steps with 0 reset in 0 ms.
FORMULA NQueens-PT-08-LTLFireability-07 FALSE TECHNIQUES STUTTER_TEST
Treatment of property NQueens-PT-08-LTLFireability-07 finished in 1536 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(F(p0)))))'
Support contains 4 out of 44 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 44/44 places, 64/64 transitions.
Applied a total of 0 rules in 1 ms. Remains 44 /44 variables (removed 0) and now considering 64/64 (removed 0) transitions.
[2026-05-26 04:48:19] [INFO ] Invariant cache hit.
[2026-05-26 04:48:19] [INFO ] Implicit Places using invariants in 192 ms returned []
[2026-05-26 04:48:19] [INFO ] Invariant cache hit.
[2026-05-26 04:48:20] [INFO ] Implicit Places using invariants and state equation in 449 ms returned [29, 43]
Discarding 2 places :
Implicit Place search using SMT with State Equation took 685 ms to find 2 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 42/44 places, 64/64 transitions.
Applied a total of 0 rules in 0 ms. Remains 42 /42 variables (removed 0) and now considering 64/64 (removed 0) transitions.
Finished structural reductions in LTL mode , in 2 iterations and 686 ms. Remains : 42/44 places, 64/64 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(F(p0)))))'
Stuttering acceptance computed with spot in 131 ms :[(NOT p0), (NOT p0), (NOT p0), (NOT p0)]
Running random walk in product with property : NQueens-PT-08-LTLFireability-11
Stuttering criterion allowed to conclude after 10 steps with 1 reset in 0 ms.
FORMULA NQueens-PT-08-LTLFireability-11 FALSE TECHNIQUES STUTTER_TEST
Treatment of property NQueens-PT-08-LTLFireability-11 finished in 837 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(p0)&&X((X(p1)&&F(p2)))))'
Support contains 15 out of 44 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 44/44 places, 64/64 transitions.
Applied a total of 0 rules in 1 ms. Remains 44 /44 variables (removed 0) and now considering 64/64 (removed 0) transitions.
[2026-05-26 04:48:20] [INFO ] Invariant cache hit.
[2026-05-26 04:48:20] [INFO ] Implicit Places using invariants in 182 ms returned []
[2026-05-26 04:48:20] [INFO ] Invariant cache hit.
[2026-05-26 04:48:21] [INFO ] Implicit Places using invariants and state equation in 414 ms returned [29, 43]
Discarding 2 places :
Implicit Place search using SMT with State Equation took 628 ms to find 2 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 42/44 places, 64/64 transitions.
Applied a total of 0 rules in 0 ms. Remains 42 /42 variables (removed 0) and now considering 64/64 (removed 0) transitions.
Finished structural reductions in LTL mode , in 2 iterations and 629 ms. Remains : 42/44 places, 64/64 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((X(p1)&&F(p2)))))'
Stuttering acceptance computed with spot in 174 ms :[(OR (NOT p2) (NOT p1) (NOT p0)), (NOT p0), (OR (NOT p1) (NOT p2)), (NOT p1), (NOT p2), true]
Running random walk in product with property : NQueens-PT-08-LTLFireability-12
Stuttering criterion allowed to conclude after 6 steps with 0 reset in 0 ms.
FORMULA NQueens-PT-08-LTLFireability-12 FALSE TECHNIQUES STUTTER_TEST
Treatment of property NQueens-PT-08-LTLFireability-12 finished in 836 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((G(p1)||p0))))'
Support contains 12 out of 44 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 44/44 places, 64/64 transitions.
Applied a total of 0 rules in 8 ms. Remains 44 /44 variables (removed 0) and now considering 64/64 (removed 0) transitions.
[2026-05-26 04:48:21] [INFO ] Invariant cache hit.
[2026-05-26 04:48:21] [INFO ] Implicit Places using invariants in 157 ms returned []
[2026-05-26 04:48:21] [INFO ] Invariant cache hit.
[2026-05-26 04:48:22] [INFO ] Implicit Places using invariants and state equation in 489 ms returned [29, 43]
Discarding 2 places :
Implicit Place search using SMT with State Equation took 676 ms to find 2 implicit places.
Starting structural reductions in SI_LTL mode, iteration 1 : 42/44 places, 64/64 transitions.
Applied a total of 0 rules in 2 ms. Remains 42 /42 variables (removed 0) and now considering 64/64 (removed 0) transitions.
Finished structural reductions in SI_LTL mode , in 2 iterations and 686 ms. Remains : 42/44 places, 64/64 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((G(p1)||p0))))'
Stuttering acceptance computed with spot in 59 ms :[(AND (NOT p1) (NOT p0)), (AND (NOT p1) (NOT p0))]
Running random walk in product with property : NQueens-PT-08-LTLFireability-13
Product exploration explored 100000 steps with 13809 reset in 677 ms.
Product exploration explored 100000 steps with 13784 reset in 605 ms.
Computed a total of 42 stabilizing places and 64 stable transitions
Complete graph has no SCC; deadlocks are unavoidable. place count 42 transition count 64
Detected that all paths lead to deadlock. Applying this knowledge to assert that all AP eventually converge (and all enablings converge to false).
Detected that all paths lead to deadlock. Applying this knowledge to assert that all AP eventually converge : F ( (Ga|G!a) & (Gb|G!b)...)
Knowledge based reduction with 3 factoid took 213 ms. Proved property starting from automaton with 2 states, 4 edges and 2 AP (stutter insensitive
Knowledge-based reduction took 359 ms.
FORMULA NQueens-PT-08-LTLFireability-13 TRUE TECHNIQUES KNOWLEDGE
Treatment of property NQueens-PT-08-LTLFireability-13 finished in 2425 ms.
All properties solved by simple procedures.
Total runtime 14621 ms.

BK_STOP 1779770904197

--------------------
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
++ ls /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202604301425.jar
++ perl -pe 's/.*\.//g'
++ sed s/.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="NQueens-PT-08"
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 NQueens-PT-08, 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 r194-tall-177969914100396"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/NQueens-PT-08.tgz
mv NQueens-PT-08 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 ;