Execution Chart

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Trace from the execution

Formatting '/data/fkordon/mcc2025-input.r142-tall-174876812300292.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2025-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 2-5832
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 r142-tall-174876812300292
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 576K
-rw-r--r-- 1 mcc users 7.8K May 29 14:47 CTLCardinality.txt
-rw-r--r-- 1 mcc users 88K May 29 14:47 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.8K May 29 14:47 CTLFireability.txt
-rw-r--r-- 1 mcc users 48K May 29 14:47 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K May 29 14:32 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.5K May 29 14:32 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 3.6K May 29 14:47 LTLCardinality.txt
-rw-r--r-- 1 mcc users 25K May 29 14:47 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.5K May 29 14:47 LTLFireability.txt
-rw-r--r-- 1 mcc users 17K May 29 14:47 LTLFireability.xml
-rw-r--r-- 1 mcc users 17K May 29 14:47 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 192K May 29 14:47 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 6.2K May 29 14:47 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 41K May 29 14:47 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K May 29 14:47 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.6K May 29 14:47 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 May 29 14:32 equiv_col
-rw-r--r-- 1 mcc users 3 May 29 14:32 instance
-rw-r--r-- 1 mcc users 6 May 29 14:32 iscolored
-rw-r--r-- 1 mcc users 65K May 29 14:32 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 1748857568677

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 202505121319
[2025-06-02 09:46:09] [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]
[2025-06-02 09:46:09] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2025-06-02 09:46:10] [INFO ] Load time of PNML (sax parser for PT used): 63 ms
[2025-06-02 09:46:10] [INFO ] Transformed 112 places.
[2025-06-02 09:46:10] [INFO ] Transformed 64 transitions.
[2025-06-02 09:46:10] [INFO ] Found NUPN structural information;
[2025-06-02 09:46:10] [INFO ] Parsed PT model containing 112 places and 64 transitions and 320 arcs in 149 ms.
Parsed 16 properties from file /home/mcc/execution/LTLFireability.xml in 8 ms.
Working with output stream class java.io.PrintStream
Initial state reduction rules removed 4 formulas.
Reduce places removed 2 places and 0 transitions.
FORMULA NQueens-PT-08-LTLFireability-01 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA NQueens-PT-08-LTLFireability-07 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA NQueens-PT-08-LTLFireability-12 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA NQueens-PT-08-LTLFireability-13 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Support contains 43 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 12 ms. Remains 46 /110 variables (removed 64) and now considering 64/64 (removed 0) transitions.
// Phase 1: matrix 64 rows 46 cols
[2025-06-02 09:46:10] [INFO ] Computed 7 invariants in 20 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-02 09:46:10] [INFO ] Implicit Places using invariants in 199 ms returned []
[2025-06-02 09:46:10] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-02 09:46:10] [INFO ] Implicit Places using invariants and state equation in 110 ms returned [16]
Discarding 1 places :
Implicit Place search using SMT with State Equation took 353 ms to find 1 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 45/110 places, 64/64 transitions.
Applied a total of 0 rules in 1 ms. Remains 45 /45 variables (removed 0) and now considering 64/64 (removed 0) transitions.
Finished structural reductions in LTL mode , in 2 iterations and 380 ms. Remains : 45/110 places, 64/64 transitions.
Support contains 43 out of 45 places after structural reductions.
[2025-06-02 09:46:10] [INFO ] Flatten gal took : 23 ms
[2025-06-02 09:46:10] [INFO ] Flatten gal took : 17 ms
[2025-06-02 09:46:10] [INFO ] Input system was already deterministic with 64 transitions.
Support contains 42 out of 45 places (down from 43) after GAL structural reductions.
Reduction of identical properties reduced properties to check from 27 to 25
RANDOM walk for 62 steps (7 resets) in 16 ms. (3 steps per ms) remains 0/25 properties
FORMULA NQueens-PT-08-LTLFireability-04 FALSE TECHNIQUES REACHABILITY_KNOWLEDGE
FORMULA NQueens-PT-08-LTLFireability-08 FALSE TECHNIQUES REACHABILITY_KNOWLEDGE
Computed a total of 45 stabilizing places and 64 stable transitions
Complete graph has no SCC; deadlocks are unavoidable. place count 45 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_1.0.0.202505121319/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X(G((X(p1)||p0))))'
Support contains 7 out of 45 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 45/45 places, 64/64 transitions.
Applied a total of 0 rules in 1 ms. Remains 45 /45 variables (removed 0) and now considering 64/64 (removed 0) transitions.
// Phase 1: matrix 64 rows 45 cols
[2025-06-02 09:46:11] [INFO ] Computed 6 invariants in 8 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-02 09:46:11] [INFO ] Implicit Places using invariants in 241 ms returned []
[2025-06-02 09:46:11] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-02 09:46:11] [INFO ] Implicit Places using invariants and state equation in 374 ms returned [29, 30, 44]
Discarding 3 places :
Implicit Place search using SMT with State Equation took 619 ms to find 3 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 42/45 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 621 ms. Remains : 42/45 places, 64/64 transitions.
Stuttering acceptance computed with spot in 221 ms :[true, (NOT p1), (AND (NOT p1) (NOT p0)), (AND (NOT p0) (NOT p1))]
Running random walk in product with property : NQueens-PT-08-LTLFireability-00
Entered a terminal (fully accepting) state of product in 2 steps with 0 reset in 1 ms.
FORMULA NQueens-PT-08-LTLFireability-00 FALSE TECHNIQUES STUTTER_TEST
Treatment of property NQueens-PT-08-LTLFireability-00 finished in 899 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202505121319/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(F((G(p0)&&F(p1))))'
Support contains 8 out of 45 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 45/45 places, 64/64 transitions.
Applied a total of 0 rules in 6 ms. Remains 45 /45 variables (removed 0) and now considering 64/64 (removed 0) transitions.
[2025-06-02 09:46:12] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-02 09:46:12] [INFO ] Implicit Places using invariants in 243 ms returned []
[2025-06-02 09:46:12] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-02 09:46:12] [INFO ] Implicit Places using invariants and state equation in 398 ms returned [29, 30, 44]
Discarding 3 places :
Implicit Place search using SMT with State Equation took 644 ms to find 3 implicit places.
Starting structural reductions in SI_LTL mode, iteration 1 : 42/45 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 656 ms. Remains : 42/45 places, 64/64 transitions.
Stuttering acceptance computed with spot in 113 ms :[(OR (NOT p0) (NOT p1)), (NOT p0), (NOT p1)]
Running random walk in product with property : NQueens-PT-08-LTLFireability-02
Stuttering criterion allowed to conclude after 6 steps with 0 reset in 1 ms.
FORMULA NQueens-PT-08-LTLFireability-02 FALSE TECHNIQUES STUTTER_TEST
Treatment of property NQueens-PT-08-LTLFireability-02 finished in 782 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202505121319/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!((((!p0 U G(p1)) U !p2) U X((X(p0) U p2))))'
Support contains 10 out of 45 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 45/45 places, 64/64 transitions.
Applied a total of 0 rules in 1 ms. Remains 45 /45 variables (removed 0) and now considering 64/64 (removed 0) transitions.
[2025-06-02 09:46:12] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-02 09:46:13] [INFO ] Implicit Places using invariants in 202 ms returned []
[2025-06-02 09:46:13] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-02 09:46:13] [INFO ] Implicit Places using invariants and state equation in 368 ms returned [29, 44]
Discarding 2 places :
Implicit Place search using SMT with State Equation took 573 ms to find 2 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 43/45 places, 64/64 transitions.
Applied a total of 0 rules in 2 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 576 ms. Remains : 43/45 places, 64/64 transitions.
Stuttering acceptance computed with spot in 409 ms :[(NOT p2), (NOT p2), (NOT p2), (AND (NOT p1) (NOT p2)), (AND (NOT p1) (NOT p2)), (OR (NOT p0) (NOT p2)), true, (OR (AND (NOT p0) (NOT p1)) (AND (NOT p1) (NOT p2))), (OR (AND (NOT p0) (NOT p1)) (AND (NOT p1) (NOT p2))), (NOT p1), (NOT p1)]
Running random walk in product with property : NQueens-PT-08-LTLFireability-03
Stuttering criterion allowed to conclude after 16 steps with 5 reset in 1 ms.
FORMULA NQueens-PT-08-LTLFireability-03 FALSE TECHNIQUES STUTTER_TEST
Treatment of property NQueens-PT-08-LTLFireability-03 finished in 1012 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202505121319/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(G((F(p0)&&F(G(p1)))))'
Support contains 8 out of 45 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 45/45 places, 64/64 transitions.
Applied a total of 0 rules in 3 ms. Remains 45 /45 variables (removed 0) and now considering 64/64 (removed 0) transitions.
[2025-06-02 09:46:13] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-02 09:46:14] [INFO ] Implicit Places using invariants in 218 ms returned []
[2025-06-02 09:46:14] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-02 09:46:14] [INFO ] Implicit Places using invariants and state equation in 348 ms returned [29, 30, 44]
Discarding 3 places :
Implicit Place search using SMT with State Equation took 569 ms to find 3 implicit places.
Starting structural reductions in SI_LTL mode, iteration 1 : 42/45 places, 64/64 transitions.
Applied a total of 0 rules in 4 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 576 ms. Remains : 42/45 places, 64/64 transitions.
Stuttering acceptance computed with spot in 103 ms :[(OR (NOT p0) (NOT p1)), (NOT p0), (NOT p1)]
Running random walk in product with property : NQueens-PT-08-LTLFireability-05
Stuttering criterion allowed to conclude after 8 steps with 0 reset in 0 ms.
FORMULA NQueens-PT-08-LTLFireability-05 FALSE TECHNIQUES STUTTER_TEST
Treatment of property NQueens-PT-08-LTLFireability-05 finished in 689 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202505121319/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!((X(X(F(p0)))||G(p1)))'
Support contains 11 out of 45 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 45/45 places, 64/64 transitions.
Applied a total of 0 rules in 1 ms. Remains 45 /45 variables (removed 0) and now considering 64/64 (removed 0) transitions.
[2025-06-02 09:46:14] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-02 09:46:14] [INFO ] Implicit Places using invariants in 180 ms returned []
[2025-06-02 09:46:14] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-02 09:46:15] [INFO ] Implicit Places using invariants and state equation in 335 ms returned [29, 30, 44]
Discarding 3 places :
Implicit Place search using SMT with State Equation took 527 ms to find 3 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 42/45 places, 64/64 transitions.
Applied a total of 0 rules in 3 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 531 ms. Remains : 42/45 places, 64/64 transitions.
Stuttering acceptance computed with spot in 171 ms :[(NOT p0), (NOT p0), (AND (NOT p0) (NOT p1)), (AND (NOT p0) (NOT p1)), (AND (NOT p0) (NOT p1))]
Running random walk in product with property : NQueens-PT-08-LTLFireability-06
Product exploration explored 100000 steps with 31339 reset in 765 ms.
Product exploration explored 100000 steps with 31356 reset in 736 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)...)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Knowledge obtained : [(AND (NOT p0) p1), (F (G p0)), (F (G (NOT p1)))]
False Knowledge obtained : [(X (NOT p1)), (X p1), (X (X (AND (NOT p1) (NOT p0)))), (X (X (NOT (AND (NOT p1) (NOT p0))))), (X (X (NOT p0))), (X (X p0)), (X (X (AND p1 (NOT p0)))), (X (X (NOT (AND p1 (NOT p0))))), (X (X p1)), (X (X (NOT p1)))]
Property proved to be true thanks to knowledge (Minato strategy)
Knowledge based reduction with 3 factoid took 15 ms. Reduced automaton from 5 states, 8 edges and 2 AP (stutter sensitive) to 1 states, 0 edges and 0 AP (stutter insensitive).
FORMULA NQueens-PT-08-LTLFireability-06 TRUE TECHNIQUES KNOWLEDGE
Treatment of property NQueens-PT-08-LTLFireability-06 finished in 2302 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202505121319/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X((F(p0)||(X(p1) U (!p2&&X(p1))))))'
Support contains 11 out of 45 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 45/45 places, 64/64 transitions.
Applied a total of 0 rules in 1 ms. Remains 45 /45 variables (removed 0) and now considering 64/64 (removed 0) transitions.
[2025-06-02 09:46:16] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-02 09:46:17] [INFO ] Implicit Places using invariants in 171 ms returned []
[2025-06-02 09:46:17] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-02 09:46:17] [INFO ] Implicit Places using invariants and state equation in 353 ms returned [29, 30]
Discarding 2 places :
Implicit Place search using SMT with State Equation took 528 ms to find 2 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 43/45 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 530 ms. Remains : 43/45 places, 64/64 transitions.
Stuttering acceptance computed with spot in 149 ms :[(OR (AND (NOT p0) (NOT p1)) (AND (NOT p0) p2)), (OR (AND (NOT p0) (NOT p1)) (AND (NOT p0) p2)), (AND (NOT p0) (NOT p1)), (NOT p0)]
Running random walk in product with property : NQueens-PT-08-LTLFireability-09
Product exploration explored 100000 steps with 31753 reset in 707 ms.
Product exploration explored 100000 steps with 31690 reset in 617 ms.
Computed a total of 43 stabilizing places and 64 stable transitions
Complete graph has no SCC; deadlocks are unavoidable. place count 43 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)...)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Knowledge obtained : [(AND (NOT p0) p2 p1), (F (G p0)), (F (G (NOT p2))), (F (G (NOT p1)))]
False Knowledge obtained : [(X p2), (X (NOT p2)), (X (AND (NOT p0) p2)), (X (NOT (AND (NOT p0) p2))), (X p0), (X (NOT p0)), (X (X p2)), (X (X (NOT p2))), (X (X (AND (NOT p0) (NOT p1)))), (X (X (NOT (AND (NOT p0) (NOT p1))))), (X (X (AND (NOT p0) p2))), (X (X (NOT (AND (NOT p0) p2)))), (X (X p0)), (X (X (NOT p0))), (X (X p1)), (X (X (NOT p1)))]
Property proved to be true thanks to knowledge (Minato strategy)
Knowledge based reduction with 4 factoid took 11 ms. Reduced automaton from 4 states, 5 edges and 3 AP (stutter sensitive) to 1 states, 0 edges and 0 AP (stutter insensitive).
FORMULA NQueens-PT-08-LTLFireability-09 TRUE TECHNIQUES KNOWLEDGE
Treatment of property NQueens-PT-08-LTLFireability-09 finished in 2079 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202505121319/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X(((p1 U X(X(G(p2))))||p0)))'
Support contains 7 out of 45 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 45/45 places, 64/64 transitions.
Applied a total of 0 rules in 2 ms. Remains 45 /45 variables (removed 0) and now considering 64/64 (removed 0) transitions.
[2025-06-02 09:46:18] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-02 09:46:19] [INFO ] Implicit Places using invariants in 195 ms returned []
[2025-06-02 09:46:19] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-02 09:46:19] [INFO ] Implicit Places using invariants and state equation in 389 ms returned [29, 30, 44]
Discarding 3 places :
Implicit Place search using SMT with State Equation took 588 ms to find 3 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 42/45 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 592 ms. Remains : 42/45 places, 64/64 transitions.
Stuttering acceptance computed with spot in 188 ms :[(AND (NOT p0) (NOT p2)), (AND (NOT p0) (NOT p2)), (NOT p2), (NOT p2), true, (NOT p2)]
Running random walk in product with property : NQueens-PT-08-LTLFireability-10
Entered a terminal (fully accepting) state of product in 7 steps with 0 reset in 0 ms.
FORMULA NQueens-PT-08-LTLFireability-10 FALSE TECHNIQUES STUTTER_TEST
Treatment of property NQueens-PT-08-LTLFireability-10 finished in 798 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202505121319/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X((X(G(p0)) U (!p1&&F(p2)&&X(p3)))))'
Support contains 15 out of 45 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 45/45 places, 64/64 transitions.
Applied a total of 0 rules in 0 ms. Remains 45 /45 variables (removed 0) and now considering 64/64 (removed 0) transitions.
[2025-06-02 09:46:19] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-02 09:46:19] [INFO ] Implicit Places using invariants in 175 ms returned []
[2025-06-02 09:46:19] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-02 09:46:20] [INFO ] Implicit Places using invariants and state equation in 270 ms returned [30, 44]
Discarding 2 places :
Implicit Place search using SMT with State Equation took 454 ms to find 2 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 43/45 places, 64/64 transitions.
Applied a total of 0 rules in 9 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 464 ms. Remains : 43/45 places, 64/64 transitions.
Stuttering acceptance computed with spot in 235 ms :[(OR (NOT p2) (NOT p3) p1), (OR (NOT p3) (NOT p2) p1), (NOT p0), (NOT p2), (NOT p3), true]
Running random walk in product with property : NQueens-PT-08-LTLFireability-11
Entered a terminal (fully accepting) state of product in 2 steps with 0 reset in 0 ms.
FORMULA NQueens-PT-08-LTLFireability-11 FALSE TECHNIQUES STUTTER_TEST
Treatment of property NQueens-PT-08-LTLFireability-11 finished in 723 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202505121319/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(F((G(p0)||G((p1 U p2)))))'
Support contains 8 out of 45 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 45/45 places, 64/64 transitions.
Applied a total of 0 rules in 1 ms. Remains 45 /45 variables (removed 0) and now considering 64/64 (removed 0) transitions.
[2025-06-02 09:46:20] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-02 09:46:20] [INFO ] Implicit Places using invariants in 183 ms returned []
[2025-06-02 09:46:20] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-02 09:46:21] [INFO ] Implicit Places using invariants and state equation in 371 ms returned [29, 30, 44]
Discarding 3 places :
Implicit Place search using SMT with State Equation took 558 ms to find 3 implicit places.
Starting structural reductions in SI_LTL mode, iteration 1 : 42/45 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 564 ms. Remains : 42/45 places, 64/64 transitions.
Stuttering acceptance computed with spot in 62 ms :[(AND (NOT p0) (NOT p2)), (AND (NOT p0) (NOT p2))]
Running random walk in product with property : NQueens-PT-08-LTLFireability-14
Product exploration explored 100000 steps with 13152 reset in 569 ms.
Product exploration explored 100000 steps with 13154 reset in 551 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)...)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Knowledge obtained : [(AND (NOT p0) p2 p1), (X (NOT (AND p0 (NOT p2) p1))), (X (NOT (AND (NOT p0) (NOT p2) (NOT p1)))), (X (X (NOT (AND p0 (NOT p2) p1)))), (X (X (NOT (AND (NOT p0) (NOT p2) (NOT p1))))), (F (G p0)), (F (G (NOT p2))), (F (G (NOT p1)))]
False Knowledge obtained : [(X p2), (X (NOT p2)), (X (OR (AND (NOT p0) p2) (AND (NOT p0) p1))), (X (NOT (OR (AND (NOT p0) p2) (AND (NOT p0) p1)))), (X (AND p0 (NOT p2) (NOT p1))), (X (NOT (AND p0 (NOT p2) (NOT p1)))), (X (OR (AND p0 p2) (AND p0 p1))), (X (NOT (OR (AND p0 p2) (AND p0 p1)))), (X p0), (X (NOT p0)), (X p1), (X (NOT p1)), (X (AND (NOT p0) (NOT p2) p1)), (X (NOT (AND (NOT p0) (NOT p2) p1))), (X (X p2)), (X (X (NOT p2))), (X (X (OR (AND (NOT p0) p2) (AND (NOT p0) p1)))), (X (X (NOT (OR (AND (NOT p0) p2) (AND (NOT p0) p1))))), (X (X (AND p0 (NOT p2) (NOT p1)))), (X (X (NOT (AND p0 (NOT p2) (NOT p1))))), (X (X (OR (AND p0 p2) (AND p0 p1)))), (X (X (NOT (OR (AND p0 p2) (AND p0 p1))))), (X (X p0)), (X (X (NOT p0))), (X (X p1)), (X (X (NOT p1))), (X (X (AND (NOT p0) (NOT p2) p1))), (X (X (NOT (AND (NOT p0) (NOT p2) p1))))]
Property proved to be true thanks to knowledge (Minato strategy)
Knowledge based reduction with 8 factoid took 13 ms. Reduced automaton from 2 states, 10 edges and 3 AP (stutter insensitive) to 1 states, 0 edges and 0 AP (stutter insensitive).
FORMULA NQueens-PT-08-LTLFireability-14 TRUE TECHNIQUES KNOWLEDGE
Treatment of property NQueens-PT-08-LTLFireability-14 finished in 1823 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202505121319/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(F(X(!((p0 U p1) U !p0))))'
Support contains 11 out of 45 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 45/45 places, 64/64 transitions.
Applied a total of 0 rules in 1 ms. Remains 45 /45 variables (removed 0) and now considering 64/64 (removed 0) transitions.
[2025-06-02 09:46:22] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-02 09:46:22] [INFO ] Implicit Places using invariants in 184 ms returned []
[2025-06-02 09:46:22] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-02 09:46:22] [INFO ] Implicit Places using invariants and state equation in 393 ms returned [29, 30, 44]
Discarding 3 places :
Implicit Place search using SMT with State Equation took 583 ms to find 3 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 42/45 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 586 ms. Remains : 42/45 places, 64/64 transitions.
Stuttering acceptance computed with spot in 102 ms :[(NOT p0), (NOT p0), (AND (NOT p0) p1)]
Running random walk in product with property : NQueens-PT-08-LTLFireability-15
Stuttering criterion allowed to conclude after 7 steps with 0 reset in 0 ms.
FORMULA NQueens-PT-08-LTLFireability-15 FALSE TECHNIQUES STUTTER_TEST
Treatment of property NQueens-PT-08-LTLFireability-15 finished in 704 ms.
All properties solved by simple procedures.
Total runtime 13160 ms.

BK_STOP 1748857583376

--------------------
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_1.0.0.202505121319.jar
+ VERSION=202505121319
+ echo 'Running Version 202505121319'
+ /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 2-5832"
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 r142-tall-174876812300292"
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 ;