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.r066-tall-177946967700460.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 CopsAndRobbers-PT-CRL015X005, examination is LTLFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r066-tall-177946967700460
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 516K
-rw-r--r-- 1 mcc users 8.2K Mar 6 13:31 CTLCardinality.txt
-rw-r--r-- 1 mcc users 69K Mar 6 13:31 CTLCardinality.xml
-rw-r--r-- 1 mcc users 7.6K Mar 6 13:31 CTLFireability.txt
-rw-r--r-- 1 mcc users 55K Mar 6 13:31 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.1K Mar 15 08:34 LTLCardinality.txt
-rw-r--r-- 1 mcc users 24K Mar 15 08:34 LTLCardinality.xml
-rw-r--r-- 1 mcc users 3.2K Mar 15 08:34 LTLFireability.txt
-rw-r--r-- 1 mcc users 19K Mar 15 08:34 LTLFireability.xml
-rw-r--r-- 1 mcc users 15K Mar 6 13:31 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 125K Mar 6 13:31 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 9.5K Mar 6 13:31 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 55K Mar 6 13:31 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 2.0K Mar 15 08:34 UpperBounds.txt
-rw-r--r-- 1 mcc users 4.0K Mar 15 08:34 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 equiv_col
-rw-r--r-- 1 mcc users 11 Mar 3 18:30 instance
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 iscolored
-rw-r--r-- 1 mcc users 80K 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 CopsAndRobbers-PT-CRL015X005-LTLFireability-00
FORMULA_NAME CopsAndRobbers-PT-CRL015X005-LTLFireability-01
FORMULA_NAME CopsAndRobbers-PT-CRL015X005-LTLFireability-02
FORMULA_NAME CopsAndRobbers-PT-CRL015X005-LTLFireability-03
FORMULA_NAME CopsAndRobbers-PT-CRL015X005-LTLFireability-04
FORMULA_NAME CopsAndRobbers-PT-CRL015X005-LTLFireability-05
FORMULA_NAME CopsAndRobbers-PT-CRL015X005-LTLFireability-06
FORMULA_NAME CopsAndRobbers-PT-CRL015X005-LTLFireability-07
FORMULA_NAME CopsAndRobbers-PT-CRL015X005-LTLFireability-08
FORMULA_NAME CopsAndRobbers-PT-CRL015X005-LTLFireability-09
FORMULA_NAME CopsAndRobbers-PT-CRL015X005-LTLFireability-10
FORMULA_NAME CopsAndRobbers-PT-CRL015X005-LTLFireability-11
FORMULA_NAME CopsAndRobbers-PT-CRL015X005-LTLFireability-12
FORMULA_NAME CopsAndRobbers-PT-CRL015X005-LTLFireability-13
FORMULA_NAME CopsAndRobbers-PT-CRL015X005-LTLFireability-14
FORMULA_NAME CopsAndRobbers-PT-CRL015X005-LTLFireability-15

=== Now, execution of the tool begins

BK_START 1779530175523

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=LTLFireability
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=CopsAndRobbers-PT-CRL015X005
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
LTLFireability PT
Running Version 202604301425
[2026-05-23 09:56:16] [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 09:56:16] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-23 09:56:16] [INFO ] Load time of PNML (sax parser for PT used): 56 ms
[2026-05-23 09:56:16] [INFO ] Transformed 85 places.
[2026-05-23 09:56:16] [INFO ] Transformed 109 transitions.
[2026-05-23 09:56:16] [INFO ] Parsed PT model containing 85 places and 109 transitions and 504 arcs in 146 ms.
Parsed 16 properties from file /home/mcc/execution/LTLFireability.xml in 33 ms.
Working with output stream class java.io.PrintStream
Initial state reduction rules removed 7 formulas.
FORMULA CopsAndRobbers-PT-CRL015X005-LTLFireability-01 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA CopsAndRobbers-PT-CRL015X005-LTLFireability-02 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA CopsAndRobbers-PT-CRL015X005-LTLFireability-04 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA CopsAndRobbers-PT-CRL015X005-LTLFireability-05 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA CopsAndRobbers-PT-CRL015X005-LTLFireability-06 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA CopsAndRobbers-PT-CRL015X005-LTLFireability-07 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA CopsAndRobbers-PT-CRL015X005-LTLFireability-09 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Support contains 28 out of 85 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 85/85 places, 109/109 transitions.
Reduce places removed 15 places and 0 transitions.
Iterating post reduction 0 with 15 rules applied. Total rules applied 15 place count 70 transition count 109
Applied a total of 15 rules in 17 ms. Remains 70 /85 variables (removed 15) and now considering 109/109 (removed 0) transitions.
Running 79 sub problems to find dead transitions.
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-9530000032800781750.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-2188091392027307783.kers'
[2026-05-23 09:56:17] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-9530000032800781750.kers, --Pflows, --basisKERS=/tmp/petrispot-output-2188091392027307783.kers]
Culling duplicate invariants (modulo rational): removing 15 columns.
Culled 15 columns in 0 ms.
// Phase 1: matrix 109 rows 55 cols 309 entries
Finished phase 1 with 52 SingleSign rule and 0 generalized
[2026-05-23 09:56:17] [INFO ] Computed 18 invariants in 1 ms
Computed 18 P flows in 2 ms.
Exported basis to /tmp/petrispot-output-2188091392027307783.kers
Total runtime 2 ms.
[2026-05-23 09:56:17] [INFO ] State equation strengthened by 30 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/68 variables, 16/16 constraints. Problems are: Problem set: 0 solved, 79 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/68 variables, 0/16 constraints. Problems are: Problem set: 0 solved, 79 unsolved
At refinement iteration 2 (OVERLAPS) 2/70 variables, 2/18 constraints. Problems are: Problem set: 0 solved, 79 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/70 variables, 0/18 constraints. Problems are: Problem set: 0 solved, 79 unsolved
At refinement iteration 4 (OVERLAPS) 109/179 variables, 70/88 constraints. Problems are: Problem set: 0 solved, 79 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/179 variables, 30/118 constraints. Problems are: Problem set: 0 solved, 79 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/179 variables, 0/118 constraints. Problems are: Problem set: 0 solved, 79 unsolved
At refinement iteration 7 (OVERLAPS) 0/179 variables, 0/118 constraints. Problems are: Problem set: 0 solved, 79 unsolved
No progress, stopping.
After SMT solving in domain Real declared 179/179 variables, and 118 constraints, problems are : Problem set: 0 solved, 79 unsolved in 6393 ms.
Refiners :[Positive P Invariants (semi-flows): 18/18 constraints, State Equation: 70/70 constraints, ReadFeed: 30/30 constraints, PredecessorRefiner: 79/79 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 79 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/68 variables, 16/16 constraints. Problems are: Problem set: 0 solved, 79 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/68 variables, 0/16 constraints. Problems are: Problem set: 0 solved, 79 unsolved
At refinement iteration 2 (OVERLAPS) 2/70 variables, 2/18 constraints. Problems are: Problem set: 0 solved, 79 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/70 variables, 0/18 constraints. Problems are: Problem set: 0 solved, 79 unsolved
At refinement iteration 4 (OVERLAPS) 109/179 variables, 70/88 constraints. Problems are: Problem set: 0 solved, 79 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/179 variables, 30/118 constraints. Problems are: Problem set: 0 solved, 79 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/179 variables, 79/197 constraints. Problems are: Problem set: 0 solved, 79 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/179 variables, 1/198 constraints. Problems are: Problem set: 0 solved, 79 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 179/179 variables, and 198 constraints, problems are : Problem set: 0 solved, 79 unsolved in 20019 ms.
Refiners :[Positive P Invariants (semi-flows): 18/18 constraints, State Equation: 70/70 constraints, ReadFeed: 30/30 constraints, PredecessorRefiner: 79/79 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 26603ms problems are : Problem set: 0 solved, 79 unsolved
Search for dead transitions found 0 dead transitions in 26646ms
[2026-05-23 09:56:43] [INFO ] Invariant cache hit.
[2026-05-23 09:56:43] [INFO ] Implicit Places using invariants in 55 ms returned []
[2026-05-23 09:56:43] [INFO ] Invariant cache hit.
[2026-05-23 09:56:44] [INFO ] State equation strengthened by 30 read => feed constraints.
[2026-05-23 09:56:44] [INFO ] Implicit Places using invariants and state equation in 260 ms returned []
Implicit Place search using SMT with State Equation took 323 ms to find 0 implicit places.
Skipped dead transition search.
Starting structural reductions in LTL mode, iteration 1 : 70/85 places, 109/109 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 27087 ms. Remains : 70/85 places, 109/109 transitions.
Starting structural reductions in LTL mode, iteration 0 : 70/70 places, 109/109 transitions.
Applied a total of 0 rules in 1 ms. Remains 70 /70 variables (removed 0) and now considering 109/109 (removed 0) transitions.
Skipped dead transition search.
[2026-05-23 09:56:44] [INFO ] Invariant cache hit.
[2026-05-23 09:56:44] [INFO ] Implicit Places using invariants in 51 ms returned []
[2026-05-23 09:56:44] [INFO ] Invariant cache hit.
[2026-05-23 09:56:44] [INFO ] State equation strengthened by 30 read => feed constraints.
[2026-05-23 09:56:44] [INFO ] Implicit Places using invariants and state equation in 235 ms returned []
Implicit Place search using SMT with State Equation took 287 ms to find 0 implicit places.
Skipped dead transition search.
Finished structural reductions in LTL mode , in 1 iterations and 289 ms. Remains : 70/70 places, 109/109 transitions.
Support contains 28 out of 70 places after structural reductions.
[2026-05-23 09:56:44] [INFO ] Flatten gal took : 26 ms
[2026-05-23 09:56:44] [INFO ] Flatten gal took : 12 ms
[2026-05-23 09:56:44] [INFO ] Input system was already deterministic with 109 transitions.
RANDOM walk for 40004 steps (8 resets) in 595 ms. (67 steps per ms) remains 3/18 properties
BEST_FIRST walk for 40002 steps (12 resets) in 396 ms. (100 steps per ms) remains 2/3 properties
BEST_FIRST walk for 40004 steps (273 resets) in 140 ms. (283 steps per ms) remains 1/2 properties
BEST_FIRST walk for 218 steps (0 resets) in 4 ms. (43 steps per ms) remains 0/1 properties
Computed a total of 4 stabilizing places and 31 stable transitions
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!((G((p0 U p1)) U X(p2)))'
Support contains 7 out of 70 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 70/70 places, 109/109 transitions.
Applied a total of 0 rules in 1 ms. Remains 70 /70 variables (removed 0) and now considering 109/109 (removed 0) transitions.
Skipped dead transition search.
[2026-05-23 09:56:45] [INFO ] Invariant cache hit.
[2026-05-23 09:56:45] [INFO ] Implicit Places using invariants in 67 ms returned []
[2026-05-23 09:56:45] [INFO ] Invariant cache hit.
[2026-05-23 09:56:45] [INFO ] State equation strengthened by 30 read => feed constraints.
[2026-05-23 09:56:45] [INFO ] Implicit Places using invariants and state equation in 352 ms returned []
Implicit Place search using SMT with State Equation took 421 ms to find 0 implicit places.
Skipped dead transition search.
Finished structural reductions in LTL mode , in 1 iterations and 423 ms. Remains : 70/70 places, 109/109 transitions.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!((G((p0 U p1)) U X(p2)))'
Stuttering acceptance computed with spot in 397 ms :[(NOT p2), (NOT p2), (NOT p2), true, (NOT p1), (NOT p1)]
Running random walk in product with property : CopsAndRobbers-PT-CRL015X005-LTLFireability-00
Entered a terminal (fully accepting) state of product in 1 steps with 0 reset in 3 ms.
FORMULA CopsAndRobbers-PT-CRL015X005-LTLFireability-00 FALSE TECHNIQUES STUTTER_TEST
Treatment of property CopsAndRobbers-PT-CRL015X005-LTLFireability-00 finished in 908 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))||G(p1))))'
Support contains 5 out of 70 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 70/70 places, 109/109 transitions.
Applied a total of 0 rules in 2 ms. Remains 70 /70 variables (removed 0) and now considering 109/109 (removed 0) transitions.
Skipped dead transition search.
[2026-05-23 09:56:46] [INFO ] Invariant cache hit.
[2026-05-23 09:56:46] [INFO ] Implicit Places using invariants in 59 ms returned []
[2026-05-23 09:56:46] [INFO ] Invariant cache hit.
[2026-05-23 09:56:46] [INFO ] State equation strengthened by 30 read => feed constraints.
[2026-05-23 09:56:46] [INFO ] Implicit Places using invariants and state equation in 289 ms returned []
Implicit Place search using SMT with State Equation took 349 ms to find 0 implicit places.
Skipped dead transition search.
Finished structural reductions in LTL mode , in 1 iterations and 352 ms. Remains : 70/70 places, 109/109 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))||G(p1))))'
Stuttering acceptance computed with spot in 297 ms :[(NOT p0), (AND (NOT p0) (NOT p1)), (AND (NOT p0) (NOT p1)), (AND (NOT p1) (NOT p0)), (NOT p0), true, (AND (NOT p0) (NOT p1)), (NOT p1)]
Running random walk in product with property : CopsAndRobbers-PT-CRL015X005-LTLFireability-03
Entered a terminal (fully accepting) state of product in 75 steps with 3 reset in 2 ms.
FORMULA CopsAndRobbers-PT-CRL015X005-LTLFireability-03 FALSE TECHNIQUES STUTTER_TEST
Treatment of property CopsAndRobbers-PT-CRL015X005-LTLFireability-03 finished in 682 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!((!p0 U X((p1||X(X(X(F(p2))))))))'
Support contains 7 out of 70 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 70/70 places, 109/109 transitions.
Applied a total of 0 rules in 3 ms. Remains 70 /70 variables (removed 0) and now considering 109/109 (removed 0) transitions.
Skipped dead transition search.
[2026-05-23 09:56:47] [INFO ] Invariant cache hit.
[2026-05-23 09:56:47] [INFO ] Implicit Places using invariants in 55 ms returned []
[2026-05-23 09:56:47] [INFO ] Invariant cache hit.
[2026-05-23 09:56:47] [INFO ] State equation strengthened by 30 read => feed constraints.
[2026-05-23 09:56:47] [INFO ] Implicit Places using invariants and state equation in 323 ms returned []
Implicit Place search using SMT with State Equation took 380 ms to find 0 implicit places.
Skipped dead transition search.
Finished structural reductions in LTL mode , in 1 iterations and 383 ms. Remains : 70/70 places, 109/109 transitions.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!((!p0 U X((X(X(X(F(p1))))||p2))))'
Stuttering acceptance computed with spot in 500 ms :[(NOT p1), (AND (NOT p1) (NOT p2)), (AND (NOT p1) (NOT p2)), (AND (NOT p2) (NOT p1)), (AND (NOT p2) (NOT p1)), (AND (NOT p2) (NOT p1)), (AND (NOT p1) (NOT p2)), (AND (NOT p1) (NOT p2)), (AND (NOT p1) (NOT p2)), (AND (NOT p1) (NOT p2)), (NOT p1), (NOT p1)]
Running random walk in product with property : CopsAndRobbers-PT-CRL015X005-LTLFireability-08
Stuttering criterion allowed to conclude after 18 steps with 0 reset in 0 ms.
FORMULA CopsAndRobbers-PT-CRL015X005-LTLFireability-08 FALSE TECHNIQUES STUTTER_TEST
Treatment of property CopsAndRobbers-PT-CRL015X005-LTLFireability-08 finished in 932 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X((G(p0) U (F(p1)||X(G(!p2))))))'
Support contains 4 out of 70 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 70/70 places, 109/109 transitions.
Applied a total of 0 rules in 3 ms. Remains 70 /70 variables (removed 0) and now considering 109/109 (removed 0) transitions.
Skipped dead transition search.
[2026-05-23 09:56:47] [INFO ] Invariant cache hit.
[2026-05-23 09:56:48] [INFO ] Implicit Places using invariants in 55 ms returned []
[2026-05-23 09:56:48] [INFO ] Invariant cache hit.
[2026-05-23 09:56:48] [INFO ] State equation strengthened by 30 read => feed constraints.
[2026-05-23 09:56:48] [INFO ] Implicit Places using invariants and state equation in 297 ms returned []
Implicit Place search using SMT with State Equation took 353 ms to find 0 implicit places.
Skipped dead transition search.
Finished structural reductions in LTL mode , in 1 iterations and 357 ms. Remains : 70/70 places, 109/109 transitions.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X((G(p0) U (F(p1)||X(G(!p2))))))'
Stuttering acceptance computed with spot in 263 ms :[(AND (NOT p1) p2), (AND (NOT p1) p2), (AND (NOT p1) p2), (AND (NOT p1) p2 (NOT p0)), (NOT p1), (AND (NOT p1) (NOT p2) (NOT p0))]
Running random walk in product with property : CopsAndRobbers-PT-CRL015X005-LTLFireability-10
Product exploration explored 100000 steps with 16136 reset in 306 ms.
Product exploration explored 100000 steps with 16113 reset in 240 ms.
Computed a total of 4 stabilizing places and 31 stable transitions
Computed a total of 4 stabilizing places and 31 stable transitions
Detected a total of 4/70 stabilizing places and 31/109 transitions leading to convergence knowledge of the form 'F(Gp|G!p)' for 1/3 atomic propositions.
Knowledge based reduction with 7 factoid took 272 ms. Reduced automaton from 6 states, 12 edges and 3 AP (stutter sensitive) to 6 states, 12 edges and 3 AP (stutter sensitive).
RANDOM walk for 40003 steps (9 resets) in 184 ms. (216 steps per ms) remains 2/11 properties
BEST_FIRST walk for 40003 steps (12 resets) in 140 ms. (283 steps per ms) remains 2/2 properties
BEST_FIRST walk for 40003 steps (15 resets) in 103 ms. (384 steps per ms) remains 2/2 properties
[2026-05-23 09:56:49] [INFO ] Invariant cache hit.
[2026-05-23 09:56:49] [INFO ] State equation strengthened by 30 read => feed constraints.
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/4 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 1 (OVERLAPS) 23/27 variables, 5/5 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/27 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 2 unsolved
Problem apf1 is UNSAT
Problem apf5 is UNSAT
After SMT solving in domain Real declared 40/179 variables, and 18 constraints, problems are : Problem set: 2 solved, 0 unsolved in 30 ms.
Refiners :[Positive P Invariants (semi-flows): 18/18 constraints, State Equation: 0/70 constraints, ReadFeed: 0/30 constraints, PredecessorRefiner: 2/2 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 34ms problems are : Problem set: 2 solved, 0 unsolved
Skipping Parikh replay, no witness traces provided.
Found 2 invariant AP formulas.
Knowledge based reduction with 9 factoid took 482 ms. Reduced automaton from 6 states, 12 edges and 3 AP (stutter sensitive) to 4 states, 5 edges and 2 AP (stutter sensitive).
Stuttering acceptance computed with spot in 184 ms :[(AND (NOT p1) p2), (AND (NOT p1) p2), (NOT p1), (AND (NOT p1) p2)]
[2026-05-23 09:56:50] [INFO ] Invariant cache hit.
[2026-05-23 09:56:50] [INFO ] [Real]Absence check using 18 positive place invariants in 4 ms returned sat
[2026-05-23 09:56:50] [INFO ] [Real]Absence check using state equation in 31 ms returned sat
[2026-05-23 09:56:50] [INFO ] Solution in real domain found non-integer solution.
[2026-05-23 09:56:50] [INFO ] [Nat]Absence check using 18 positive place invariants in 3 ms returned sat
[2026-05-23 09:56:50] [INFO ] [Nat]Absence check using state equation in 42 ms returned sat
[2026-05-23 09:56:50] [INFO ] State equation strengthened by 30 read => feed constraints.
[2026-05-23 09:56:50] [INFO ] [Nat]Added 30 Read/Feed constraints in 7 ms returned sat
[2026-05-23 09:56:50] [INFO ] Computed and/alt/rep : 75/240/75 causal constraints (skipped 4 transitions) in 11 ms.
[2026-05-23 09:56:50] [INFO ] Added : 0 causal constraints over 0 iterations in 32 ms. Result :sat
Could not prove EG (AND (NOT p1) p2)
Knowledge-based reduction took 1365 ms.
Stuttering acceptance computed with spot in 165 ms :[(AND (NOT p1) p2), (AND (NOT p1) p2), (NOT p1), (AND (NOT p1) p2)]
Support contains 3 out of 70 places. Attempting structural reductions.
Property had overlarge support with respect to TGBA, discarding it for now.
Starting structural reductions in LTL mode, iteration 0 : 70/70 places, 109/109 transitions.
Applied a total of 0 rules in 4 ms. Remains 70 /70 variables (removed 0) and now considering 109/109 (removed 0) transitions.
Skipped dead transition search.
[2026-05-23 09:56:50] [INFO ] Invariant cache hit.
[2026-05-23 09:56:50] [INFO ] Implicit Places using invariants in 58 ms returned []
[2026-05-23 09:56:50] [INFO ] Invariant cache hit.
[2026-05-23 09:56:50] [INFO ] State equation strengthened by 30 read => feed constraints.
[2026-05-23 09:56:51] [INFO ] Implicit Places using invariants and state equation in 330 ms returned []
Implicit Place search using SMT with State Equation took 389 ms to find 0 implicit places.
Skipped dead transition search.
Finished structural reductions in LTL mode , in 1 iterations and 393 ms. Remains : 70/70 places, 109/109 transitions.
Computed a total of 4 stabilizing places and 31 stable transitions
Computed a total of 4 stabilizing places and 31 stable transitions
Detected a total of 4/70 stabilizing places and 31/109 transitions leading to convergence knowledge of the form 'F(Gp|G!p)' for 1/2 atomic propositions.
Knowledge based reduction with 4 factoid took 129 ms. Reduced automaton from 4 states, 5 edges and 2 AP (stutter sensitive) to 4 states, 5 edges and 2 AP (stutter sensitive).
RANDOM walk for 23344 steps (5 resets) in 53 ms. (432 steps per ms) remains 0/4 properties
Knowledge based reduction with 4 factoid took 181 ms. Reduced automaton from 4 states, 5 edges and 2 AP (stutter sensitive) to 4 states, 5 edges and 2 AP (stutter sensitive).
Stuttering acceptance computed with spot in 176 ms :[(NOT p1), (AND (NOT p1) p2), (AND (NOT p1) p2), (AND (NOT p1) p2)]
[2026-05-23 09:56:51] [INFO ] Invariant cache hit.
[2026-05-23 09:56:51] [INFO ] [Real]Absence check using 18 positive place invariants in 4 ms returned sat
[2026-05-23 09:56:51] [INFO ] [Real]Absence check using state equation in 29 ms returned sat
[2026-05-23 09:56:51] [INFO ] Solution in real domain found non-integer solution.
[2026-05-23 09:56:51] [INFO ] [Nat]Absence check using 18 positive place invariants in 3 ms returned sat
[2026-05-23 09:56:51] [INFO ] [Nat]Absence check using state equation in 46 ms returned sat
[2026-05-23 09:56:51] [INFO ] State equation strengthened by 30 read => feed constraints.
[2026-05-23 09:56:51] [INFO ] [Nat]Added 30 Read/Feed constraints in 5 ms returned sat
[2026-05-23 09:56:51] [INFO ] Computed and/alt/rep : 75/240/75 causal constraints (skipped 4 transitions) in 5 ms.
[2026-05-23 09:56:51] [INFO ] Added : 0 causal constraints over 0 iterations in 22 ms. Result :sat
Could not prove EG (AND (NOT p1) p2)
Knowledge-based reduction took 739 ms.
Stuttering acceptance computed with spot in 162 ms :[(NOT p1), (AND (NOT p1) p2), (AND (NOT p1) p2), (AND (NOT p1) p2)]
Stuttering acceptance computed with spot in 175 ms :[(NOT p1), (AND (NOT p1) p2), (AND (NOT p1) p2), (AND (NOT p1) p2)]
Product exploration explored 100000 steps with 14281 reset in 175 ms.
Product exploration explored 100000 steps with 14280 reset in 179 ms.
Spot run failed in 76 ms. Status :1
Traceback (most recent call last):
File "/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/autstates.py", line 2, in
import spot
ModuleNotFoundError: No module named 'spot'
java.io.IOException
at fr.lip6.move.gal.application.runner.spot.SpotRunner.computeForwardClosedSI(SpotRunner.java:551)
at fr.lip6.move.gal.application.solver.ltl.LTLPropertySolver.treatPartialPOR(LTLPropertySolver.java:419)
at fr.lip6.move.gal.application.solver.ltl.LTLPropertySolver.checkLTLProperty(LTLPropertySolver.java:280)
at fr.lip6.move.gal.application.solver.ltl.LTLPropertySolver.runStutteringLTLTest(LTLPropertySolver.java:217)
at fr.lip6.move.gal.application.solver.ltl.LTLPropertySolver.runStructuralLTLCheck(LTLPropertySolver.java:66)
at fr.lip6.move.gal.application.Application.startNoEx(Application.java:849)
at fr.lip6.move.gal.application.Application.start(Application.java:195)
at fr.lip6.move.gal.itscl.application.Application.start(Application.java:44)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:219)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:149)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:115)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:467)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:298)
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103)
at java.base/java.lang.reflect.Method.invoke(Method.java:580)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:615)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:563)
at org.eclipse.equinox.launcher.Main.run(Main.java:1415)
at org.eclipse.equinox.launcher.Main.main(Main.java:1387)
Built C files in :
/tmp/ltsmin1935906360715964670
[2026-05-23 09:56:52] [INFO ] Built C files in 16ms conformant to PINS (ltsmin variant)in folder :/tmp/ltsmin1935906360715964670
Running compilation step : cd /tmp/ltsmin1935906360715964670;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.ltsmin.binaries_1.0.0.202604301425/bin/limit_time.pl' '3' 'gcc' '-c' '-I/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.ltsmin.binaries_1.0.0.202604301425/bin/include/' '-I.' '-std=c99' '-fPIC' '-O0' 'model.c'
Compilation finished in 334 ms.
Running link step : cd /tmp/ltsmin1935906360715964670;'gcc' '-shared' '-o' 'gal.so' 'model.o'
Link finished in 45 ms.
Running LTSmin : cd /tmp/ltsmin1935906360715964670;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.ltsmin.binaries_1.0.0.202604301425/bin/pins2lts-seq-linux64' './gal.so' '--when' '--hoa' '/tmp/stateBased3470257926211080675.hoa' '--buchi-type=spotba'
LTSmin run took 5939 ms.
FORMULA CopsAndRobbers-PT-CRL015X005-LTLFireability-10 TRUE TECHNIQUES EXPLICIT LTSMIN SAT_SMT
Treatment of property CopsAndRobbers-PT-CRL015X005-LTLFireability-10 finished in 11052 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!((X(G((p0||X(p0))))||(X(X(X(X(p1))))&&F(p2))))'
Support contains 7 out of 70 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 70/70 places, 109/109 transitions.
Applied a total of 0 rules in 3 ms. Remains 70 /70 variables (removed 0) and now considering 109/109 (removed 0) transitions.
Skipped dead transition search.
[2026-05-23 09:56:59] [INFO ] Invariant cache hit.
[2026-05-23 09:56:59] [INFO ] Implicit Places using invariants in 44 ms returned []
[2026-05-23 09:56:59] [INFO ] Invariant cache hit.
[2026-05-23 09:56:59] [INFO ] State equation strengthened by 30 read => feed constraints.
[2026-05-23 09:56:59] [INFO ] Implicit Places using invariants and state equation in 302 ms returned []
Implicit Place search using SMT with State Equation took 359 ms to find 0 implicit places.
Skipped dead transition search.
Finished structural reductions in LTL mode , in 1 iterations and 363 ms. Remains : 70/70 places, 109/109 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||X(p0))))||(X(X(X(X(p1))))&&F(p2))))'
Stuttering acceptance computed with spot in 556 ms :[(OR (AND (NOT p0) (NOT p2)) (AND (NOT p0) (NOT p1))), (AND (NOT p0) (NOT p1)), (AND (NOT p2) (NOT p0)), (AND (NOT p1) (NOT p0)), false, (AND (NOT p2) (NOT p0)), (AND (NOT p0) (NOT p1)), (AND (NOT p0) (NOT p1)), (AND p0 (NOT p1)), (NOT p1), true, (NOT p2), (AND (NOT p0) (NOT p1)), (AND (NOT p0) (NOT p1)), (NOT p0), (NOT p0)]
Running random walk in product with property : CopsAndRobbers-PT-CRL015X005-LTLFireability-11
Product exploration explored 100000 steps with 1 reset in 227 ms.
Entered a terminal (fully accepting) state of product in 5 steps with 0 reset in 0 ms.
FORMULA CopsAndRobbers-PT-CRL015X005-LTLFireability-11 FALSE TECHNIQUES STUTTER_TEST
Treatment of property CopsAndRobbers-PT-CRL015X005-LTLFireability-11 finished in 1184 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(G(p1)))))'
Support contains 6 out of 70 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 70/70 places, 109/109 transitions.
Applied a total of 0 rules in 6 ms. Remains 70 /70 variables (removed 0) and now considering 109/109 (removed 0) transitions.
Skipped dead transition search.
[2026-05-23 09:57:00] [INFO ] Invariant cache hit.
[2026-05-23 09:57:00] [INFO ] Implicit Places using invariants in 55 ms returned []
[2026-05-23 09:57:00] [INFO ] Invariant cache hit.
[2026-05-23 09:57:00] [INFO ] State equation strengthened by 30 read => feed constraints.
[2026-05-23 09:57:00] [INFO ] Implicit Places using invariants and state equation in 324 ms returned []
Implicit Place search using SMT with State Equation took 382 ms to find 0 implicit places.
[2026-05-23 09:57:00] [INFO ] Redundant transitions in 5 ms returned []
Skipped dead transition search.
Finished structural reductions in SI_LTL mode , in 1 iterations and 401 ms. Remains : 70/70 places, 109/109 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(G(p1)))))'
Stuttering acceptance computed with spot in 111 ms :[(OR (NOT p0) (NOT p1)), (NOT p0), (NOT p1)]
Running random walk in product with property : CopsAndRobbers-PT-CRL015X005-LTLFireability-12
Product exploration explored 100000 steps with 1 reset in 164 ms.
Stack based approach found an accepted trace after 289 steps with 0 reset with depth 290 and stack size 290 in 1 ms.
FORMULA CopsAndRobbers-PT-CRL015X005-LTLFireability-12 FALSE TECHNIQUES STACK_TEST
Treatment of property CopsAndRobbers-PT-CRL015X005-LTLFireability-12 finished in 701 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 3 out of 70 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 70/70 places, 109/109 transitions.
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 0 with 1 Pre rules applied. Total rules applied 0 place count 70 transition count 108
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 0 with 2 rules applied. Total rules applied 2 place count 69 transition count 108
Applied a total of 2 rules in 10 ms. Remains 69 /70 variables (removed 1) and now considering 108/109 (removed 1) transitions.
Running 78 sub problems to find dead transitions.
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-3373063551468273336.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-3609363637460014976.kers'
[2026-05-23 09:57:00] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-3373063551468273336.kers, --Pflows, --basisKERS=/tmp/petrispot-output-3609363637460014976.kers]
Culling duplicate invariants (modulo rational): removing 15 columns.
Culled 15 columns in 0 ms.
// Phase 1: matrix 108 rows 54 cols 307 entries
Finished phase 1 with 51 SingleSign rule and 0 generalized
[2026-05-23 09:57:00] [INFO ] Computed 18 invariants in 0 ms
Computed 18 P flows in 7 ms.
Exported basis to /tmp/petrispot-output-3609363637460014976.kers
Total runtime 7 ms.
[2026-05-23 09:57:00] [INFO ] State equation strengthened by 30 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/67 variables, 16/16 constraints. Problems are: Problem set: 0 solved, 78 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/67 variables, 0/16 constraints. Problems are: Problem set: 0 solved, 78 unsolved
At refinement iteration 2 (OVERLAPS) 2/69 variables, 2/18 constraints. Problems are: Problem set: 0 solved, 78 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/69 variables, 0/18 constraints. Problems are: Problem set: 0 solved, 78 unsolved
At refinement iteration 4 (OVERLAPS) 108/177 variables, 69/87 constraints. Problems are: Problem set: 0 solved, 78 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/177 variables, 30/117 constraints. Problems are: Problem set: 0 solved, 78 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/177 variables, 0/117 constraints. Problems are: Problem set: 0 solved, 78 unsolved
At refinement iteration 7 (OVERLAPS) 0/177 variables, 1/118 constraints. Problems are: Problem set: 0 solved, 78 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/177 variables, 0/118 constraints. Problems are: Problem set: 0 solved, 78 unsolved
At refinement iteration 9 (OVERLAPS) 0/177 variables, 0/118 constraints. Problems are: Problem set: 0 solved, 78 unsolved
No progress, stopping.
After SMT solving in domain Real declared 177/177 variables, and 118 constraints, problems are : Problem set: 0 solved, 78 unsolved in 7555 ms.
Refiners :[Positive P Invariants (semi-flows): 18/18 constraints, State Equation: 69/69 constraints, ReadFeed: 30/30 constraints, PredecessorRefiner: 78/78 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 78 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/67 variables, 16/16 constraints. Problems are: Problem set: 0 solved, 78 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/67 variables, 0/16 constraints. Problems are: Problem set: 0 solved, 78 unsolved
At refinement iteration 2 (OVERLAPS) 2/69 variables, 2/18 constraints. Problems are: Problem set: 0 solved, 78 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/69 variables, 1/19 constraints. Problems are: Problem set: 0 solved, 78 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/69 variables, 0/19 constraints. Problems are: Problem set: 0 solved, 78 unsolved
At refinement iteration 5 (OVERLAPS) 108/177 variables, 69/88 constraints. Problems are: Problem set: 0 solved, 78 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/177 variables, 30/118 constraints. Problems are: Problem set: 0 solved, 78 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/177 variables, 78/196 constraints. Problems are: Problem set: 0 solved, 78 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 177/177 variables, and 196 constraints, problems are : Problem set: 0 solved, 78 unsolved in 20013 ms.
Refiners :[Positive P Invariants (semi-flows): 18/18 constraints, State Equation: 69/69 constraints, ReadFeed: 30/30 constraints, PredecessorRefiner: 78/78 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 27596ms problems are : Problem set: 0 solved, 78 unsolved
Search for dead transitions found 0 dead transitions in 27596ms
[2026-05-23 09:57:28] [INFO ] Invariant cache hit.
[2026-05-23 09:57:28] [INFO ] Implicit Places using invariants in 51 ms returned []
[2026-05-23 09:57:28] [INFO ] Invariant cache hit.
[2026-05-23 09:57:28] [INFO ] State equation strengthened by 30 read => feed constraints.
[2026-05-23 09:57:28] [INFO ] Implicit Places using invariants and state equation in 304 ms returned []
Implicit Place search using SMT with State Equation took 357 ms to find 0 implicit places.
[2026-05-23 09:57:28] [INFO ] Redundant transitions in 1 ms returned []
Skipped dead transition search.
Starting structural reductions in SI_LTL mode, iteration 1 : 69/70 places, 108/109 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 27971 ms. Remains : 69/70 places, 108/109 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 26 ms :[(NOT p0)]
Running random walk in product with property : CopsAndRobbers-PT-CRL015X005-LTLFireability-13
Product exploration explored 100000 steps with 0 reset in 142 ms.
Stack based approach found an accepted trace after 201 steps with 0 reset with depth 202 and stack size 202 in 0 ms.
FORMULA CopsAndRobbers-PT-CRL015X005-LTLFireability-13 FALSE TECHNIQUES STACK_TEST
Treatment of property CopsAndRobbers-PT-CRL015X005-LTLFireability-13 finished in 28174 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(((G((p0 U !p1)) U G((p0||X(X(!p1))))) U G(p1)))'
Support contains 4 out of 70 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 70/70 places, 109/109 transitions.
Applied a total of 0 rules in 2 ms. Remains 70 /70 variables (removed 0) and now considering 109/109 (removed 0) transitions.
Running 79 sub problems to find dead transitions.
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-8019005346477042394.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-16361801101711989236.kers'
[2026-05-23 09:57:29] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-8019005346477042394.kers, --Pflows, --basisKERS=/tmp/petrispot-output-16361801101711989236.kers]
Culling duplicate invariants (modulo rational): removing 15 columns.
Culled 15 columns in 0 ms.
// Phase 1: matrix 109 rows 55 cols 309 entries
Finished phase 1 with 52 SingleSign rule and 0 generalized
[2026-05-23 09:57:29] [INFO ] Computed 18 invariants in 0 ms
Computed 18 P flows in 0 ms.
Exported basis to /tmp/petrispot-output-16361801101711989236.kers
Total runtime 1 ms.
[2026-05-23 09:57:29] [INFO ] State equation strengthened by 30 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/68 variables, 16/16 constraints. Problems are: Problem set: 0 solved, 79 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/68 variables, 0/16 constraints. Problems are: Problem set: 0 solved, 79 unsolved
At refinement iteration 2 (OVERLAPS) 2/70 variables, 2/18 constraints. Problems are: Problem set: 0 solved, 79 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/70 variables, 0/18 constraints. Problems are: Problem set: 0 solved, 79 unsolved
At refinement iteration 4 (OVERLAPS) 109/179 variables, 70/88 constraints. Problems are: Problem set: 0 solved, 79 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/179 variables, 30/118 constraints. Problems are: Problem set: 0 solved, 79 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/179 variables, 0/118 constraints. Problems are: Problem set: 0 solved, 79 unsolved
At refinement iteration 7 (OVERLAPS) 0/179 variables, 0/118 constraints. Problems are: Problem set: 0 solved, 79 unsolved
No progress, stopping.
After SMT solving in domain Real declared 179/179 variables, and 118 constraints, problems are : Problem set: 0 solved, 79 unsolved in 5060 ms.
Refiners :[Positive P Invariants (semi-flows): 18/18 constraints, State Equation: 70/70 constraints, ReadFeed: 30/30 constraints, PredecessorRefiner: 79/79 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 79 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/68 variables, 16/16 constraints. Problems are: Problem set: 0 solved, 79 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/68 variables, 0/16 constraints. Problems are: Problem set: 0 solved, 79 unsolved
At refinement iteration 2 (OVERLAPS) 2/70 variables, 2/18 constraints. Problems are: Problem set: 0 solved, 79 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/70 variables, 0/18 constraints. Problems are: Problem set: 0 solved, 79 unsolved
At refinement iteration 4 (OVERLAPS) 109/179 variables, 70/88 constraints. Problems are: Problem set: 0 solved, 79 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/179 variables, 30/118 constraints. Problems are: Problem set: 0 solved, 79 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/179 variables, 79/197 constraints. Problems are: Problem set: 0 solved, 79 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/179 variables, 1/198 constraints. Problems are: Problem set: 0 solved, 79 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 179/179 variables, and 198 constraints, problems are : Problem set: 0 solved, 79 unsolved in 20016 ms.
Refiners :[Positive P Invariants (semi-flows): 18/18 constraints, State Equation: 70/70 constraints, ReadFeed: 30/30 constraints, PredecessorRefiner: 79/79 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 25095ms problems are : Problem set: 0 solved, 79 unsolved
Search for dead transitions found 0 dead transitions in 25096ms
[2026-05-23 09:57:54] [INFO ] Invariant cache hit.
[2026-05-23 09:57:54] [INFO ] Implicit Places using invariants in 132 ms returned []
[2026-05-23 09:57:54] [INFO ] Invariant cache hit.
[2026-05-23 09:57:54] [INFO ] State equation strengthened by 30 read => feed constraints.
[2026-05-23 09:57:54] [INFO ] Implicit Places using invariants and state equation in 356 ms returned []
Implicit Place search using SMT with State Equation took 491 ms to find 0 implicit places.
Skipped dead transition search.
Finished structural reductions in LTL mode , in 1 iterations and 25589 ms. Remains : 70/70 places, 109/109 transitions.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(((G((p0 U !p1)) U G((X(X(!p1))||p0))) U G(p1)))'
Stuttering acceptance computed with spot in 586 ms :[(NOT p1), p1, (AND p1 (NOT p0)), false, false, p1, p1, p1, true, p1, (AND p1 (NOT p0)), false, p1, (NOT p1)]
Running random walk in product with property : CopsAndRobbers-PT-CRL015X005-LTLFireability-14
Product exploration explored 100000 steps with 24 reset in 140 ms.
Entered a terminal (fully accepting) state of product in 407 steps with 134 reset in 1 ms.
FORMULA CopsAndRobbers-PT-CRL015X005-LTLFireability-14 FALSE TECHNIQUES STUTTER_TEST
Treatment of property CopsAndRobbers-PT-CRL015X005-LTLFireability-14 finished in 26381 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 3 out of 70 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 70/70 places, 109/109 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 1 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 0 with 2 rules applied. Total rules applied 2 place count 69 transition count 108
Applied a total of 2 rules in 10 ms. Remains 69 /70 variables (removed 1) and now considering 108/109 (removed 1) transitions.
Running 78 sub problems to find dead transitions.
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-790702212003200247.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-14216548819499478995.kers'
[2026-05-23 09:57:55] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-790702212003200247.kers, --Pflows, --basisKERS=/tmp/petrispot-output-14216548819499478995.kers]
Culling duplicate invariants (modulo rational): removing 15 columns.
Culled 15 columns in 0 ms.
// Phase 1: matrix 108 rows 54 cols 307 entries
Finished phase 1 with 51 SingleSign rule and 0 generalized
[2026-05-23 09:57:55] [INFO ] Computed 18 invariants in 0 ms
Computed 18 P flows in 1 ms.
Exported basis to /tmp/petrispot-output-14216548819499478995.kers
Total runtime 1 ms.
[2026-05-23 09:57:55] [INFO ] State equation strengthened by 30 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/67 variables, 16/16 constraints. Problems are: Problem set: 0 solved, 78 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/67 variables, 0/16 constraints. Problems are: Problem set: 0 solved, 78 unsolved
At refinement iteration 2 (OVERLAPS) 2/69 variables, 2/18 constraints. Problems are: Problem set: 0 solved, 78 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/69 variables, 0/18 constraints. Problems are: Problem set: 0 solved, 78 unsolved
At refinement iteration 4 (OVERLAPS) 108/177 variables, 69/87 constraints. Problems are: Problem set: 0 solved, 78 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/177 variables, 30/117 constraints. Problems are: Problem set: 0 solved, 78 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/177 variables, 0/117 constraints. Problems are: Problem set: 0 solved, 78 unsolved
At refinement iteration 7 (OVERLAPS) 0/177 variables, 0/117 constraints. Problems are: Problem set: 0 solved, 78 unsolved
No progress, stopping.
After SMT solving in domain Real declared 177/177 variables, and 117 constraints, problems are : Problem set: 0 solved, 78 unsolved in 5779 ms.
Refiners :[Positive P Invariants (semi-flows): 18/18 constraints, State Equation: 69/69 constraints, ReadFeed: 30/30 constraints, PredecessorRefiner: 78/78 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 78 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/67 variables, 16/16 constraints. Problems are: Problem set: 0 solved, 78 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/67 variables, 0/16 constraints. Problems are: Problem set: 0 solved, 78 unsolved
At refinement iteration 2 (OVERLAPS) 2/69 variables, 2/18 constraints. Problems are: Problem set: 0 solved, 78 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/69 variables, 0/18 constraints. Problems are: Problem set: 0 solved, 78 unsolved
At refinement iteration 4 (OVERLAPS) 108/177 variables, 69/87 constraints. Problems are: Problem set: 0 solved, 78 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/177 variables, 30/117 constraints. Problems are: Problem set: 0 solved, 78 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/177 variables, 78/195 constraints. Problems are: Problem set: 0 solved, 78 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 177/177 variables, and 195 constraints, problems are : Problem set: 0 solved, 78 unsolved in 20013 ms.
Refiners :[Positive P Invariants (semi-flows): 18/18 constraints, State Equation: 69/69 constraints, ReadFeed: 30/30 constraints, PredecessorRefiner: 78/78 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 25810ms problems are : Problem set: 0 solved, 78 unsolved
Search for dead transitions found 0 dead transitions in 25811ms
[2026-05-23 09:58:21] [INFO ] Invariant cache hit.
[2026-05-23 09:58:21] [INFO ] Implicit Places using invariants in 56 ms returned []
[2026-05-23 09:58:21] [INFO ] Invariant cache hit.
[2026-05-23 09:58:21] [INFO ] State equation strengthened by 30 read => feed constraints.
[2026-05-23 09:58:21] [INFO ] Implicit Places using invariants and state equation in 269 ms returned []
Implicit Place search using SMT with State Equation took 327 ms to find 0 implicit places.
[2026-05-23 09:58:21] [INFO ] Redundant transitions in 4 ms returned []
Skipped dead transition search.
Starting structural reductions in SI_LTL mode, iteration 1 : 69/70 places, 108/109 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 26158 ms. Remains : 69/70 places, 108/109 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 76 ms :[(NOT p0), (NOT p0)]
Running random walk in product with property : CopsAndRobbers-PT-CRL015X005-LTLFireability-15
Stuttering criterion allowed to conclude after 12 steps with 0 reset in 0 ms.
FORMULA CopsAndRobbers-PT-CRL015X005-LTLFireability-15 FALSE TECHNIQUES STUTTER_TEST
Treatment of property CopsAndRobbers-PT-CRL015X005-LTLFireability-15 finished in 26268 ms.
All properties solved by simple procedures.
Total runtime 124890 ms.

BK_STOP 1779530301739

--------------------
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
++ perl -pe 's/.*\.//g'
++ ls /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202604301425.jar
++ 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="CopsAndRobbers-PT-CRL015X005"
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 CopsAndRobbers-PT-CRL015X005, 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 r066-tall-177946967700460"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/CopsAndRobbers-PT-CRL015X005.tgz
mv CopsAndRobbers-PT-CRL015X005 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 ;