About the Execution of ITS-Tools for HirschbergSinclair-PT-20
| Execution Summary | |||||
| Max Memory Used (MB) |
Time wait (ms) | CPU Usage (ms) | I/O Wait (ms) | Computed Result | Execution Status |
| 4341.619 | 1238055.00 | 1854616.00 | 2534.00 | FTTFFFTFFFTTTFFF | normal |
Execution Chart
We display below the execution chart for this examination (boot time has been removed).
Trace from the execution
Formatting '/data/fkordon/mcc2026-input.r146-tall-177961074400755.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 HirschbergSinclair-PT-20, examination is LTLCardinality
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r146-tall-177961074400755
=====================================================================
--------------------
preparation of the directory to be used:
/home/mcc/execution
total 708K
-rw-r--r-- 1 mcc users 9.6K Mar 7 17:01 CTLCardinality.txt
-rw-r--r-- 1 mcc users 76K Mar 7 17:01 CTLCardinality.xml
-rw-r--r-- 1 mcc users 7.1K Mar 7 17:01 CTLFireability.txt
-rw-r--r-- 1 mcc users 45K Mar 7 17:01 CTLFireability.xml
-rw-r--r-- 1 mcc users 5.0K Mar 15 10:49 LTLCardinality.txt
-rw-r--r-- 1 mcc users 27K Mar 15 10:49 LTLCardinality.xml
-rw-r--r-- 1 mcc users 3.4K Mar 15 10:49 LTLFireability.txt
-rw-r--r-- 1 mcc users 19K Mar 15 10:49 LTLFireability.xml
-rw-r--r-- 1 mcc users 15K Mar 7 17:01 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 107K Mar 7 17:01 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 11K Mar 7 17:01 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 59K Mar 7 17:01 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 2.0K Mar 15 10:49 UpperBounds.txt
-rw-r--r-- 1 mcc users 4.1K Mar 15 10:49 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 284K 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 HirschbergSinclair-PT-20-LTLCardinality-00
FORMULA_NAME HirschbergSinclair-PT-20-LTLCardinality-01
FORMULA_NAME HirschbergSinclair-PT-20-LTLCardinality-02
FORMULA_NAME HirschbergSinclair-PT-20-LTLCardinality-03
FORMULA_NAME HirschbergSinclair-PT-20-LTLCardinality-04
FORMULA_NAME HirschbergSinclair-PT-20-LTLCardinality-05
FORMULA_NAME HirschbergSinclair-PT-20-LTLCardinality-06
FORMULA_NAME HirschbergSinclair-PT-20-LTLCardinality-07
FORMULA_NAME HirschbergSinclair-PT-20-LTLCardinality-08
FORMULA_NAME HirschbergSinclair-PT-20-LTLCardinality-09
FORMULA_NAME HirschbergSinclair-PT-20-LTLCardinality-10
FORMULA_NAME HirschbergSinclair-PT-20-LTLCardinality-11
FORMULA_NAME HirschbergSinclair-PT-20-LTLCardinality-12
FORMULA_NAME HirschbergSinclair-PT-20-LTLCardinality-13
FORMULA_NAME HirschbergSinclair-PT-20-LTLCardinality-14
FORMULA_NAME HirschbergSinclair-PT-20-LTLCardinality-15
=== Now, execution of the tool begins
BK_START 1779752273958
Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=LTLCardinality
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=HirschbergSinclair-PT-20
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
LTLCardinality PT
Running Version 202604301425
[2026-05-25 23:37:55] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, LTLCardinality, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2026-05-25 23:37:55] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-25 23:37:55] [INFO ] Load time of PNML (sax parser for PT used): 94 ms
[2026-05-25 23:37:55] [INFO ] Transformed 530 places.
[2026-05-25 23:37:55] [INFO ] Transformed 485 transitions.
[2026-05-25 23:37:55] [INFO ] Parsed PT model containing 530 places and 485 transitions and 1479 arcs in 201 ms.
Parsed 16 properties from file /home/mcc/execution/LTLCardinality.xml in 10 ms.
Working with output stream class java.io.PrintStream
Initial state reduction rules removed 4 formulas.
FORMULA HirschbergSinclair-PT-20-LTLCardinality-00 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA HirschbergSinclair-PT-20-LTLCardinality-03 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA HirschbergSinclair-PT-20-LTLCardinality-07 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA HirschbergSinclair-PT-20-LTLCardinality-12 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Support contains 43 out of 530 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 530/530 places, 485/485 transitions.
Reduce places removed 18 places and 0 transitions.
Iterating post reduction 0 with 18 rules applied. Total rules applied 18 place count 512 transition count 485
Discarding 17 places :
Symmetric choice reduction at 1 with 17 rule applications. Total rules 35 place count 495 transition count 468
Iterating global reduction 1 with 17 rules applied. Total rules applied 52 place count 495 transition count 468
Discarding 14 places :
Symmetric choice reduction at 1 with 14 rule applications. Total rules 66 place count 481 transition count 454
Iterating global reduction 1 with 14 rules applied. Total rules applied 80 place count 481 transition count 454
Applied a total of 80 rules in 129 ms. Remains 481 /530 variables (removed 49) and now considering 454/485 (removed 31) transitions.
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-5746303313361745635.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-7871563371777186342.kers'
[2026-05-25 23:37:55] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-5746303313361745635.kers, --Pflows, --basisKERS=/tmp/petrispot-output-7871563371777186342.kers]
Culled 0 columns in 0 ms.
// Phase 1: matrix 454 rows 481 cols 1366 entries
Finished phase 1 with 449 SingleSign rule and 5 generalized
[2026-05-25 23:37:55] [INFO ] Computed 27 invariants in 2 ms
Computed 27 P flows in 3 ms.
Exported basis to /tmp/petrispot-output-7871563371777186342.kers
Total runtime 3 ms.
[2026-05-25 23:37:56] [INFO ] Implicit Places using invariants in 404 ms returned []
[2026-05-25 23:37:56] [INFO ] Invariant cache hit.
[2026-05-25 23:38:02] [INFO ] Implicit Places using invariants and state equation in 6617 ms returned []
Implicit Place search using SMT with State Equation took 7053 ms to find 0 implicit places.
Running 434 sub problems to find dead transitions.
[2026-05-25 23:38:02] [INFO ] Invariant cache hit.
At refinement iteration 0 (INCLUDED_ONLY) 0/459 variables, 4/4 constraints. Problems are: Problem set: 0 solved, 434 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/459 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 434 unsolved
At refinement iteration 2 (OVERLAPS) 4/463 variables, 2/6 constraints. Problems are: Problem set: 0 solved, 434 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/463 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 434 unsolved
At refinement iteration 4 (OVERLAPS) 18/481 variables, 21/27 constraints. Problems are: Problem set: 0 solved, 434 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/481 variables, 0/27 constraints. Problems are: Problem set: 0 solved, 434 unsolved
Error getting values : (error "Timeout of Z3 solver reached")
At refinement iteration 6 (OVERLAPS) 454/935 variables, 481/508 constraints. Problems are: Problem set: 0 solved, 434 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 935/935 variables, and 508 constraints, problems are : Problem set: 0 solved, 434 unsolved in 30023 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 25/25 constraints, State Equation: 481/481 constraints, PredecessorRefiner: 434/434 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 434 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/459 variables, 4/4 constraints. Problems are: Problem set: 0 solved, 434 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/459 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 434 unsolved
At refinement iteration 2 (OVERLAPS) 4/463 variables, 2/6 constraints. Problems are: Problem set: 0 solved, 434 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/463 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 434 unsolved
At refinement iteration 4 (OVERLAPS) 18/481 variables, 21/27 constraints. Problems are: Problem set: 0 solved, 434 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/481 variables, 0/27 constraints. Problems are: Problem set: 0 solved, 434 unsolved
At refinement iteration 6 (OVERLAPS) 454/935 variables, 481/508 constraints. Problems are: Problem set: 0 solved, 434 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/935 variables, 434/942 constraints. Problems are: Problem set: 0 solved, 434 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 935/935 variables, and 942 constraints, problems are : Problem set: 0 solved, 434 unsolved in 30015 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 25/25 constraints, State Equation: 481/481 constraints, PredecessorRefiner: 434/434 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 60173ms problems are : Problem set: 0 solved, 434 unsolved
Search for dead transitions found 0 dead transitions in 60187ms
Starting structural reductions in LTL mode, iteration 1 : 481/530 places, 454/485 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 67409 ms. Remains : 481/530 places, 454/485 transitions.
Starting structural reductions in LTL mode, iteration 0 : 481/481 places, 454/454 transitions.
Applied a total of 0 rules in 12 ms. Remains 481 /481 variables (removed 0) and now considering 454/454 (removed 0) transitions.
[2026-05-25 23:39:02] [INFO ] Invariant cache hit.
[2026-05-25 23:39:03] [INFO ] Implicit Places using invariants in 140 ms returned []
[2026-05-25 23:39:03] [INFO ] Invariant cache hit.
[2026-05-25 23:39:09] [INFO ] Implicit Places using invariants and state equation in 6467 ms returned []
Implicit Place search using SMT with State Equation took 6608 ms to find 0 implicit places.
Skipped dead transition search.
Finished structural reductions in LTL mode , in 1 iterations and 6622 ms. Remains : 481/481 places, 454/454 transitions.
Support contains 43 out of 481 places after structural reductions.
[2026-05-25 23:39:09] [INFO ] Flatten gal took : 58 ms
[2026-05-25 23:39:09] [INFO ] Flatten gal took : 26 ms
[2026-05-25 23:39:09] [INFO ] Input system was already deterministic with 454 transitions.
Support contains 42 out of 481 places (down from 43) after GAL structural reductions.
RANDOM walk for 40000 steps (80 resets) in 1334 ms. (29 steps per ms) remains 12/31 properties
BEST_FIRST walk for 40002 steps (8 resets) in 146 ms. (272 steps per ms) remains 12/12 properties
BEST_FIRST walk for 40004 steps (10 resets) in 95 ms. (416 steps per ms) remains 12/12 properties
BEST_FIRST walk for 40003 steps (8 resets) in 114 ms. (347 steps per ms) remains 12/12 properties
BEST_FIRST walk for 40003 steps (10 resets) in 128 ms. (310 steps per ms) remains 12/12 properties
BEST_FIRST walk for 40003 steps (10 resets) in 107 ms. (370 steps per ms) remains 12/12 properties
BEST_FIRST walk for 40003 steps (11 resets) in 66 ms. (597 steps per ms) remains 12/12 properties
BEST_FIRST walk for 40004 steps (12 resets) in 89 ms. (444 steps per ms) remains 12/12 properties
BEST_FIRST walk for 40003 steps (12 resets) in 114 ms. (347 steps per ms) remains 12/12 properties
BEST_FIRST walk for 40004 steps (12 resets) in 154 ms. (258 steps per ms) remains 12/12 properties
BEST_FIRST walk for 40004 steps (12 resets) in 108 ms. (367 steps per ms) remains 12/12 properties
BEST_FIRST walk for 40004 steps (10 resets) in 115 ms. (344 steps per ms) remains 12/12 properties
BEST_FIRST walk for 40003 steps (9 resets) in 69 ms. (571 steps per ms) remains 12/12 properties
[2026-05-25 23:39:10] [INFO ] Invariant cache hit.
At refinement iteration 0 (INCLUDED_ONLY) 0/13 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 12 unsolved
Problem AtomicPropp11 is UNSAT
At refinement iteration 1 (OVERLAPS) 10/23 variables, 2/2 constraints. Problems are: Problem set: 1 solved, 11 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/23 variables, 0/2 constraints. Problems are: Problem set: 1 solved, 11 unsolved
At refinement iteration 3 (OVERLAPS) 386/409 variables, 19/21 constraints. Problems are: Problem set: 1 solved, 11 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/409 variables, 0/21 constraints. Problems are: Problem set: 1 solved, 11 unsolved
At refinement iteration 5 (OVERLAPS) 34/443 variables, 6/27 constraints. Problems are: Problem set: 1 solved, 11 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/443 variables, 0/27 constraints. Problems are: Problem set: 1 solved, 11 unsolved
Problem AtomicPropp0 is UNSAT
Problem AtomicPropp3 is UNSAT
Problem AtomicPropp14 is UNSAT
Problem AtomicPropp16 is UNSAT
Problem AtomicPropp17 is UNSAT
Problem AtomicPropp20 is UNSAT
Problem AtomicPropp21 is UNSAT
Problem AtomicPropp23 is UNSAT
Problem AtomicPropp24 is UNSAT
Problem AtomicPropp27 is UNSAT
Problem AtomicPropp28 is UNSAT
After SMT solving in domain Real declared 897/935 variables, and 470 constraints, problems are : Problem set: 12 solved, 0 unsolved in 1008 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 25/25 constraints, State Equation: 443/481 constraints, PredecessorRefiner: 12/12 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 1014ms problems are : Problem set: 12 solved, 0 unsolved
Skipping Parikh replay, no witness traces provided.
FORMULA HirschbergSinclair-PT-20-LTLCardinality-05 FALSE TECHNIQUES REACHABILITY_KNOWLEDGE
Successfully simplified 12 atomic propositions for a total of 11 simplifications.
Initial state reduction rules removed 3 formulas.
FORMULA HirschbergSinclair-PT-20-LTLCardinality-01 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA HirschbergSinclair-PT-20-LTLCardinality-09 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA HirschbergSinclair-PT-20-LTLCardinality-11 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA HirschbergSinclair-PT-20-LTLCardinality-13 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Computed a total of 481 stabilizing places and 454 stable transitions
Complete graph has no SCC; deadlocks are unavoidable. place count 481 transition count 454
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' '!(G(F((p0||G(p1)))))'
Support contains 3 out of 481 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 481/481 places, 454/454 transitions.
Graph (complete) has 913 edges and 481 vertex of which 479 are kept as prefixes of interest. Removing 2 places using SCC suffix rule.4 ms
Discarding 2 places :
Also discarding 0 output transitions
Reduce places removed 20 places and 20 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 195 transitions
Trivial Post-agglo rules discarded 195 transitions
Performed 195 trivial Post agglomeration. Transition count delta: 195
Iterating post reduction 0 with 195 rules applied. Total rules applied 196 place count 459 transition count 239
Reduce places removed 195 places and 0 transitions.
Performed 2 Post agglomeration using F-continuation condition.Transition count delta: 2
Iterating post reduction 1 with 197 rules applied. Total rules applied 393 place count 264 transition count 237
Reduce places removed 2 places and 0 transitions.
Iterating post reduction 2 with 2 rules applied. Total rules applied 395 place count 262 transition count 237
Discarding 6 places :
Symmetric choice reduction at 3 with 6 rule applications. Total rules 401 place count 256 transition count 231
Iterating global reduction 3 with 6 rules applied. Total rules applied 407 place count 256 transition count 231
Drop transitions (Trivial Post-Agglo cleanup.) removed 3 transitions
Trivial Post-agglo rules discarded 3 transitions
Performed 3 trivial Post agglomeration. Transition count delta: 3
Iterating post reduction 3 with 3 rules applied. Total rules applied 410 place count 256 transition count 228
Reduce places removed 3 places and 0 transitions.
Iterating post reduction 4 with 3 rules applied. Total rules applied 413 place count 253 transition count 228
Applied a total of 413 rules in 48 ms. Remains 253 /481 variables (removed 228) and now considering 228/454 (removed 226) transitions.
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-9767912079284269184.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-8204752643224830496.kers'
[2026-05-25 23:39:12] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-9767912079284269184.kers, --Pflows, --basisKERS=/tmp/petrispot-output-8204752643224830496.kers]
Culled 0 columns in 0 ms.
// Phase 1: matrix 228 rows 253 cols 472 entries
Finished phase 1 with 223 SingleSign rule and 5 generalized
[2026-05-25 23:39:12] [INFO ] Computed 25 invariants in 0 ms
Computed 25 P flows in 1 ms.
Exported basis to /tmp/petrispot-output-8204752643224830496.kers
Total runtime 1 ms.
[2026-05-25 23:39:12] [INFO ] Implicit Places using invariants in 193 ms returned []
[2026-05-25 23:39:12] [INFO ] Invariant cache hit.
[2026-05-25 23:39:14] [INFO ] Implicit Places using invariants and state equation in 1912 ms returned []
Implicit Place search using SMT with State Equation took 2107 ms to find 0 implicit places.
[2026-05-25 23:39:14] [INFO ] Redundant transitions in 10 ms returned []
Running 189 sub problems to find dead transitions.
[2026-05-25 23:39:14] [INFO ] Invariant cache hit.
At refinement iteration 0 (INCLUDED_ONLY) 0/214 variables, 22/22 constraints. Problems are: Problem set: 0 solved, 189 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/214 variables, 0/22 constraints. Problems are: Problem set: 0 solved, 189 unsolved
At refinement iteration 2 (OVERLAPS) 2/216 variables, 3/25 constraints. Problems are: Problem set: 0 solved, 189 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/216 variables, 0/25 constraints. Problems are: Problem set: 0 solved, 189 unsolved
At refinement iteration 4 (OVERLAPS) 191/407 variables, 216/241 constraints. Problems are: Problem set: 0 solved, 189 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/407 variables, 0/241 constraints. Problems are: Problem set: 0 solved, 189 unsolved
At refinement iteration 6 (OVERLAPS) 0/407 variables, 0/241 constraints. Problems are: Problem set: 0 solved, 189 unsolved
No progress, stopping.
After SMT solving in domain Real declared 407/481 variables, and 241 constraints, problems are : Problem set: 0 solved, 189 unsolved in 15762 ms.
Refiners :[Generalized P Invariants (flows): 25/25 constraints, State Equation: 216/253 constraints, PredecessorRefiner: 189/189 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 189 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/214 variables, 22/22 constraints. Problems are: Problem set: 0 solved, 189 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/214 variables, 0/22 constraints. Problems are: Problem set: 0 solved, 189 unsolved
At refinement iteration 2 (OVERLAPS) 2/216 variables, 3/25 constraints. Problems are: Problem set: 0 solved, 189 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/216 variables, 0/25 constraints. Problems are: Problem set: 0 solved, 189 unsolved
At refinement iteration 4 (OVERLAPS) 191/407 variables, 216/241 constraints. Problems are: Problem set: 0 solved, 189 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/407 variables, 189/430 constraints. Problems are: Problem set: 0 solved, 189 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/407 variables, 0/430 constraints. Problems are: Problem set: 0 solved, 189 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 407/481 variables, and 430 constraints, problems are : Problem set: 0 solved, 189 unsolved in 30013 ms.
Refiners :[Generalized P Invariants (flows): 25/25 constraints, State Equation: 216/253 constraints, PredecessorRefiner: 189/189 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 45795ms problems are : Problem set: 0 solved, 189 unsolved
Search for dead transitions found 0 dead transitions in 45796ms
Starting structural reductions in SI_LTL mode, iteration 1 : 253/481 places, 228/454 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 47972 ms. Remains : 253/481 places, 228/454 transitions.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(G(F((p0||G(p1)))))'
Stuttering acceptance computed with spot in 194 ms :[(AND (NOT p1) (NOT p0)), (AND (NOT p1) (NOT p0))]
Running random walk in product with property : HirschbergSinclair-PT-20-LTLCardinality-02
Product exploration explored 100000 steps with 466 reset in 439 ms.
Product exploration explored 100000 steps with 462 reset in 230 ms.
Computed a total of 253 stabilizing places and 228 stable transitions
Complete graph has no SCC; deadlocks are unavoidable. place count 253 transition count 228
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)...)
Property proved to be true by K+ with min(!phi)
Knowledge based reduction with 11 factoid took 12 ms. Proved property starting from automaton with 2 states, 4 edges and 2 AP (stutter insensitive
Knowledge-based reduction took 87 ms.
FORMULA HirschbergSinclair-PT-20-LTLCardinality-02 TRUE TECHNIQUES KNOWLEDGE
Treatment of property HirschbergSinclair-PT-20-LTLCardinality-02 finished in 49001 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X((p0&&((F(p0) U G(p1)) U (p2 U (p3||G(p2)))))))'
Support contains 7 out of 481 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 481/481 places, 454/454 transitions.
Reduce places removed 2 places and 0 transitions.
Iterating post reduction 0 with 2 rules applied. Total rules applied 2 place count 479 transition count 454
Discarding 6 places :
Symmetric choice reduction at 1 with 6 rule applications. Total rules 8 place count 473 transition count 448
Iterating global reduction 1 with 6 rules applied. Total rules applied 14 place count 473 transition count 448
Discarding 2 places :
Symmetric choice reduction at 1 with 2 rule applications. Total rules 16 place count 471 transition count 446
Iterating global reduction 1 with 2 rules applied. Total rules applied 18 place count 471 transition count 446
Applied a total of 18 rules in 32 ms. Remains 471 /481 variables (removed 10) and now considering 446/454 (removed 8) transitions.
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-16516620454039350325.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-2809180113681522411.kers'
[2026-05-25 23:40:01] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-16516620454039350325.kers, --Pflows, --basisKERS=/tmp/petrispot-output-2809180113681522411.kers]
Culled 0 columns in 0 ms.
// Phase 1: matrix 446 rows 471 cols 1343 entries
Finished phase 1 with 441 SingleSign rule and 5 generalized
[2026-05-25 23:40:01] [INFO ] Computed 25 invariants in 1 ms
Computed 25 P flows in 2 ms.
Exported basis to /tmp/petrispot-output-2809180113681522411.kers
Total runtime 3 ms.
[2026-05-25 23:40:01] [INFO ] Implicit Places using invariants in 153 ms returned []
[2026-05-25 23:40:01] [INFO ] Invariant cache hit.
[2026-05-25 23:40:08] [INFO ] Implicit Places using invariants and state equation in 7524 ms returned []
Implicit Place search using SMT with State Equation took 7680 ms to find 0 implicit places.
Running 426 sub problems to find dead transitions.
[2026-05-25 23:40:08] [INFO ] Invariant cache hit.
At refinement iteration 0 (INCLUDED_ONLY) 0/451 variables, 4/4 constraints. Problems are: Problem set: 0 solved, 426 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/451 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 426 unsolved
At refinement iteration 2 (OVERLAPS) 20/471 variables, 21/25 constraints. Problems are: Problem set: 0 solved, 426 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/471 variables, 0/25 constraints. Problems are: Problem set: 0 solved, 426 unsolved
At refinement iteration 4 (OVERLAPS) 446/917 variables, 471/496 constraints. Problems are: Problem set: 0 solved, 426 unsolved
Error getting values : (error "Timeout of Z3 solver reached")
Error getting values : (error "Error writing to Z3 solver: java.io.IOException: Broken pipe")
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 917/917 variables, and 496 constraints, problems are : Problem set: 0 solved, 426 unsolved in 30020 ms.
Refiners :[Generalized P Invariants (flows): 25/25 constraints, State Equation: 471/471 constraints, PredecessorRefiner: 426/426 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 426 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/451 variables, 4/4 constraints. Problems are: Problem set: 0 solved, 426 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/451 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 426 unsolved
At refinement iteration 2 (OVERLAPS) 20/471 variables, 21/25 constraints. Problems are: Problem set: 0 solved, 426 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/471 variables, 0/25 constraints. Problems are: Problem set: 0 solved, 426 unsolved
At refinement iteration 4 (OVERLAPS) 446/917 variables, 471/496 constraints. Problems are: Problem set: 0 solved, 426 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/917 variables, 426/922 constraints. Problems are: Problem set: 0 solved, 426 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 917/917 variables, and 922 constraints, problems are : Problem set: 0 solved, 426 unsolved in 30024 ms.
Refiners :[Generalized P Invariants (flows): 25/25 constraints, State Equation: 471/471 constraints, PredecessorRefiner: 426/426 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 60096ms problems are : Problem set: 0 solved, 426 unsolved
Search for dead transitions found 0 dead transitions in 60098ms
Starting structural reductions in LTL mode, iteration 1 : 471/481 places, 446/454 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 67819 ms. Remains : 471/481 places, 446/454 transitions.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X((p0&&((F(p0) U G(p1)) U (p2 U (p3||G(p2)))))))'
Stuttering acceptance computed with spot in 288 ms :[(OR (NOT p0) (AND (NOT p2) (NOT p3))), (OR (NOT p0) (AND (NOT p2) (NOT p3))), true, (NOT p1), (AND (NOT p2) (NOT p3)), (NOT p0), (AND (NOT p0) (NOT p3) (NOT p2) p1)]
Running random walk in product with property : HirschbergSinclair-PT-20-LTLCardinality-04
Product exploration explored 100000 steps with 206 reset in 275 ms.
Product exploration explored 100000 steps with 206 reset in 218 ms.
Computed a total of 471 stabilizing places and 446 stable transitions
Complete graph has no SCC; deadlocks are unavoidable. place count 471 transition count 446
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 14 factoid took 789 ms. Reduced automaton from 7 states, 16 edges and 4 AP (stutter sensitive) to 6 states, 14 edges and 4 AP (stutter sensitive).
Reduction of identical properties reduced properties to check from 11 to 10
RANDOM walk for 40000 steps (80 resets) in 355 ms. (112 steps per ms) remains 4/10 properties
BEST_FIRST walk for 40003 steps (12 resets) in 195 ms. (204 steps per ms) remains 4/4 properties
BEST_FIRST walk for 40004 steps (12 resets) in 152 ms. (261 steps per ms) remains 4/4 properties
BEST_FIRST walk for 40004 steps (12 resets) in 93 ms. (425 steps per ms) remains 4/4 properties
BEST_FIRST walk for 40003 steps (12 resets) in 134 ms. (296 steps per ms) remains 4/4 properties
[2026-05-25 23:41:10] [INFO ] Invariant cache hit.
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/7 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 1 (OVERLAPS) 330/337 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/337 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 3 (OVERLAPS) 97/434 variables, 18/25 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/434 variables, 0/25 constraints. Problems are: Problem set: 0 solved, 4 unsolved
Problem apf4 is UNSAT
Problem apf7 is UNSAT
Problem apf8 is UNSAT
At refinement iteration 5 (OVERLAPS) 446/880 variables, 434/459 constraints. Problems are: Problem set: 3 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/880 variables, 0/459 constraints. Problems are: Problem set: 3 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 37/917 variables, 37/496 constraints. Problems are: Problem set: 3 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/917 variables, 0/496 constraints. Problems are: Problem set: 3 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 0/917 variables, 0/496 constraints. Problems are: Problem set: 3 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 917/917 variables, and 496 constraints, problems are : Problem set: 3 solved, 1 unsolved in 647 ms.
Refiners :[Generalized P Invariants (flows): 25/25 constraints, State Equation: 471/471 constraints, PredecessorRefiner: 4/4 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 3 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/7 variables, 0/0 constraints. Problems are: Problem set: 3 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 330/337 variables, 7/7 constraints. Problems are: Problem set: 3 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/337 variables, 0/7 constraints. Problems are: Problem set: 3 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 97/434 variables, 18/25 constraints. Problems are: Problem set: 3 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/434 variables, 0/25 constraints. Problems are: Problem set: 3 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 446/880 variables, 434/459 constraints. Problems are: Problem set: 3 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/880 variables, 0/459 constraints. Problems are: Problem set: 3 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 37/917 variables, 37/496 constraints. Problems are: Problem set: 3 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/917 variables, 1/497 constraints. Problems are: Problem set: 3 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/917 variables, 0/497 constraints. Problems are: Problem set: 3 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 0/917 variables, 0/497 constraints. Problems are: Problem set: 3 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 917/917 variables, and 497 constraints, problems are : Problem set: 3 solved, 1 unsolved in 697 ms.
Refiners :[Generalized P Invariants (flows): 25/25 constraints, State Equation: 471/471 constraints, PredecessorRefiner: 1/4 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 1357ms problems are : Problem set: 3 solved, 1 unsolved
Parikh walk visited 0 properties in 114 ms.
Support contains 7 out of 471 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 471/471 places, 446/446 transitions.
Graph (complete) has 900 edges and 471 vertex of which 451 are kept as prefixes of interest. Removing 20 places using SCC suffix rule.1 ms
Discarding 20 places :
Also discarding 0 output transitions
Drop transitions (Empty/Sink Transition effects.) removed 20 transitions
Reduce isomorphic transitions removed 20 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 190 transitions
Trivial Post-agglo rules discarded 190 transitions
Performed 190 trivial Post agglomeration. Transition count delta: 190
Iterating post reduction 0 with 210 rules applied. Total rules applied 211 place count 451 transition count 236
Reduce places removed 190 places and 0 transitions.
Graph (complete) has 462 edges and 261 vertex of which 190 are kept as prefixes of interest. Removing 71 places using SCC suffix rule.0 ms
Discarding 71 places :
Also discarding 0 output transitions
Performed 3 Post agglomeration using F-continuation condition.Transition count delta: 3
Iterating post reduction 1 with 194 rules applied. Total rules applied 405 place count 190 transition count 233
Reduce places removed 3 places and 0 transitions.
Drop transitions (Empty/Sink Transition effects.) removed 71 transitions
Reduce isomorphic transitions removed 71 transitions.
Iterating post reduction 2 with 74 rules applied. Total rules applied 479 place count 187 transition count 162
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 1 Pre rules applied. Total rules applied 479 place count 187 transition count 161
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 3 with 2 rules applied. Total rules applied 481 place count 186 transition count 161
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 3 with 2 rules applied. Total rules applied 483 place count 185 transition count 160
Graph (complete) has 307 edges and 185 vertex of which 183 are kept as prefixes of interest. Removing 2 places using SCC suffix rule.0 ms
Discarding 2 places :
Also discarding 0 output transitions
Iterating post reduction 3 with 1 rules applied. Total rules applied 484 place count 183 transition count 160
Drop transitions (Empty/Sink Transition effects.) removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 4 with 2 rules applied. Total rules applied 486 place count 183 transition count 158
Free-agglomeration rule (complex) applied 3 times.
Iterating global reduction 5 with 3 rules applied. Total rules applied 489 place count 183 transition count 155
Reduce places removed 3 places and 0 transitions.
Iterating post reduction 5 with 3 rules applied. Total rules applied 492 place count 180 transition count 155
Reduce places removed 19 places and 19 transitions.
Iterating global reduction 6 with 19 rules applied. Total rules applied 511 place count 161 transition count 136
Reduce places removed 16 places and 0 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 62 transitions
Trivial Post-agglo rules discarded 62 transitions
Performed 62 trivial Post agglomeration. Transition count delta: 62
Iterating post reduction 6 with 78 rules applied. Total rules applied 589 place count 145 transition count 74
Reduce places removed 62 places and 0 transitions.
Performed 2 Post agglomeration using F-continuation condition.Transition count delta: 2
Iterating post reduction 7 with 64 rules applied. Total rules applied 653 place count 83 transition count 72
Reduce places removed 2 places and 0 transitions.
Iterating post reduction 8 with 2 rules applied. Total rules applied 655 place count 81 transition count 72
Performed 30 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 9 with 30 Pre rules applied. Total rules applied 655 place count 81 transition count 42
Deduced a syphon composed of 30 places in 0 ms
Reduce places removed 30 places and 0 transitions.
Iterating global reduction 9 with 60 rules applied. Total rules applied 715 place count 51 transition count 42
Applied a total of 715 rules in 36 ms. Remains 51 /471 variables (removed 420) and now considering 42/446 (removed 404) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 36 ms. Remains : 51/471 places, 42/446 transitions.
RANDOM walk for 40000 steps (928 resets) in 44 ms. (888 steps per ms) remains 1/1 properties
BEST_FIRST walk for 1905 steps (12 resets) in 7 ms. (238 steps per ms) remains 0/1 properties
Found 3 invariant AP formulas.
Knowledge based reduction with 17 factoid took 1310 ms. Reduced automaton from 6 states, 14 edges and 4 AP (stutter sensitive) to 4 states, 8 edges and 3 AP (stutter sensitive).
Stuttering acceptance computed with spot in 178 ms :[(OR (AND (NOT p1) (NOT p2)) (AND (NOT p2) (NOT p3))), (OR (AND (NOT p1) (NOT p2)) (AND (NOT p2) (NOT p3))), (NOT p1), (AND (NOT p2) (NOT p3))]
[2026-05-25 23:41:13] [INFO ] Invariant cache hit.
[2026-05-25 23:41:14] [INFO ] [Real]Absence check using 0 positive and 25 generalized place invariants in 332 ms returned sat
[2026-05-25 23:41:28] [INFO ] [Real]Absence check using state equation in 14496 ms returned unknown
Could not prove EG (AND (NOT p2) (NOT p3))
Knowledge-based reduction took 19259 ms.
Stuttering acceptance computed with spot in 147 ms :[(OR (AND (NOT p1) (NOT p2)) (AND (NOT p2) (NOT p3))), (OR (AND (NOT p1) (NOT p2)) (AND (NOT p2) (NOT p3))), (NOT p1), (AND (NOT p2) (NOT p3))]
Support contains 5 out of 471 places. Attempting structural reductions.
Property had overlarge support with respect to TGBA, discarding it for now.
Starting structural reductions in LTL mode, iteration 0 : 471/471 places, 446/446 transitions.
Applied a total of 0 rules in 16 ms. Remains 471 /471 variables (removed 0) and now considering 446/446 (removed 0) transitions.
[2026-05-25 23:41:29] [INFO ] Invariant cache hit.
[2026-05-25 23:41:29] [INFO ] Implicit Places using invariants in 165 ms returned []
[2026-05-25 23:41:29] [INFO ] Invariant cache hit.
[2026-05-25 23:41:36] [INFO ] Implicit Places using invariants and state equation in 7548 ms returned []
Implicit Place search using SMT with State Equation took 7715 ms to find 0 implicit places.
Skipped dead transition search.
Finished structural reductions in LTL mode , in 1 iterations and 7731 ms. Remains : 471/471 places, 446/446 transitions.
Computed a total of 471 stabilizing places and 446 stable transitions
Complete graph has no SCC; deadlocks are unavoidable. place count 471 transition count 446
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 6 factoid took 197 ms. Reduced automaton from 4 states, 8 edges and 3 AP (stutter sensitive) to 4 states, 8 edges and 3 AP (stutter sensitive).
Reduction of identical properties reduced properties to check from 5 to 4
RANDOM walk for 34451 steps (69 resets) in 168 ms. (203 steps per ms) remains 0/4 properties
Knowledge based reduction with 6 factoid took 338 ms. Reduced automaton from 4 states, 8 edges and 3 AP (stutter sensitive) to 4 states, 8 edges and 3 AP (stutter sensitive).
Stuttering acceptance computed with spot in 147 ms :[(OR (AND (NOT p1) (NOT p2)) (AND (NOT p2) (NOT p3))), (OR (AND (NOT p1) (NOT p2)) (AND (NOT p2) (NOT p3))), (NOT p1), (AND (NOT p2) (NOT p3))]
[2026-05-25 23:41:37] [INFO ] Invariant cache hit.
[2026-05-25 23:41:38] [INFO ] [Real]Absence check using 0 positive and 25 generalized place invariants in 334 ms returned sat
[2026-05-25 23:41:52] [INFO ] [Real]Absence check using state equation in 14496 ms returned unknown
Could not prove EG (AND (NOT p2) (NOT p3))
Knowledge-based reduction took 15880 ms.
Stuttering acceptance computed with spot in 153 ms :[(OR (AND (NOT p1) (NOT p2)) (AND (NOT p2) (NOT p3))), (OR (AND (NOT p1) (NOT p2)) (AND (NOT p2) (NOT p3))), (NOT p1), (AND (NOT p2) (NOT p3))]
Stuttering acceptance computed with spot in 136 ms :[(OR (AND (NOT p1) (NOT p2)) (AND (NOT p2) (NOT p3))), (OR (AND (NOT p1) (NOT p2)) (AND (NOT p2) (NOT p3))), (NOT p1), (AND (NOT p2) (NOT p3))]
Product exploration explored 100000 steps with 206 reset in 190 ms.
Product exploration explored 100000 steps with 206 reset in 214 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/ltsmin536449429573868787
[2026-05-25 23:41:53] [INFO ] Built C files in 26ms conformant to PINS (ltsmin variant)in folder :/tmp/ltsmin536449429573868787
Running compilation step : cd /tmp/ltsmin536449429573868787;'/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 789 ms.
Running link step : cd /tmp/ltsmin536449429573868787;'gcc' '-shared' '-o' 'gal.so' 'model.o'
Link finished in 47 ms.
Running LTSmin : cd /tmp/ltsmin536449429573868787;'/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/stateBased7971969828412186998.hoa' '--buchi-type=spotba'
LTSmin run took 126 ms.
FORMULA HirschbergSinclair-PT-20-LTLCardinality-04 FALSE TECHNIQUES EXPLICIT LTSMIN SAT_SMT
Treatment of property HirschbergSinclair-PT-20-LTLCardinality-04 finished in 113519 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))'
Support contains 1 out of 481 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 481/481 places, 454/454 transitions.
Graph (complete) has 913 edges and 481 vertex of which 479 are kept as prefixes of interest. Removing 2 places using SCC suffix rule.4 ms
Discarding 2 places :
Also discarding 0 output transitions
Reduce places removed 19 places and 19 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 190 transitions
Trivial Post-agglo rules discarded 190 transitions
Performed 190 trivial Post agglomeration. Transition count delta: 190
Iterating post reduction 0 with 190 rules applied. Total rules applied 191 place count 460 transition count 245
Reduce places removed 190 places and 0 transitions.
Iterating post reduction 1 with 190 rules applied. Total rules applied 381 place count 270 transition count 245
Discarding 6 places :
Symmetric choice reduction at 2 with 6 rule applications. Total rules 387 place count 264 transition count 239
Iterating global reduction 2 with 6 rules applied. Total rules applied 393 place count 264 transition count 239
Drop transitions (Trivial Post-Agglo cleanup.) removed 3 transitions
Trivial Post-agglo rules discarded 3 transitions
Performed 3 trivial Post agglomeration. Transition count delta: 3
Iterating post reduction 2 with 3 rules applied. Total rules applied 396 place count 264 transition count 236
Reduce places removed 3 places and 0 transitions.
Iterating post reduction 3 with 3 rules applied. Total rules applied 399 place count 261 transition count 236
Applied a total of 399 rules in 34 ms. Remains 261 /481 variables (removed 220) and now considering 236/454 (removed 218) transitions.
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-10004822835974938951.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-2427112648351279665.kers'
[2026-05-25 23:41:54] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-10004822835974938951.kers, --Pflows, --basisKERS=/tmp/petrispot-output-2427112648351279665.kers]
Culled 0 columns in 0 ms.
// Phase 1: matrix 236 rows 261 cols 504 entries
Finished phase 1 with 231 SingleSign rule and 5 generalized
[2026-05-25 23:41:54] [INFO ] Computed 25 invariants in 0 ms
Computed 25 P flows in 1 ms.
Exported basis to /tmp/petrispot-output-2427112648351279665.kers
Total runtime 1 ms.
[2026-05-25 23:41:54] [INFO ] Implicit Places using invariants in 189 ms returned []
[2026-05-25 23:41:54] [INFO ] Invariant cache hit.
[2026-05-25 23:41:56] [INFO ] Implicit Places using invariants and state equation in 1832 ms returned []
Implicit Place search using SMT with State Equation took 2023 ms to find 0 implicit places.
[2026-05-25 23:41:56] [INFO ] Redundant transitions in 8 ms returned []
Running 200 sub problems to find dead transitions.
[2026-05-25 23:41:56] [INFO ] Invariant cache hit.
At refinement iteration 0 (INCLUDED_ONLY) 0/225 variables, 21/21 constraints. Problems are: Problem set: 0 solved, 200 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/225 variables, 0/21 constraints. Problems are: Problem set: 0 solved, 200 unsolved
At refinement iteration 2 (OVERLAPS) 3/228 variables, 4/25 constraints. Problems are: Problem set: 0 solved, 200 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/228 variables, 0/25 constraints. Problems are: Problem set: 0 solved, 200 unsolved
At refinement iteration 4 (OVERLAPS) 203/431 variables, 228/253 constraints. Problems are: Problem set: 0 solved, 200 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/431 variables, 0/253 constraints. Problems are: Problem set: 0 solved, 200 unsolved
At refinement iteration 6 (OVERLAPS) 0/431 variables, 0/253 constraints. Problems are: Problem set: 0 solved, 200 unsolved
No progress, stopping.
After SMT solving in domain Real declared 431/497 variables, and 253 constraints, problems are : Problem set: 0 solved, 200 unsolved in 17090 ms.
Refiners :[Generalized P Invariants (flows): 25/25 constraints, State Equation: 228/261 constraints, PredecessorRefiner: 200/200 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 200 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/225 variables, 21/21 constraints. Problems are: Problem set: 0 solved, 200 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/225 variables, 0/21 constraints. Problems are: Problem set: 0 solved, 200 unsolved
At refinement iteration 2 (OVERLAPS) 3/228 variables, 4/25 constraints. Problems are: Problem set: 0 solved, 200 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/228 variables, 0/25 constraints. Problems are: Problem set: 0 solved, 200 unsolved
At refinement iteration 4 (OVERLAPS) 203/431 variables, 228/253 constraints. Problems are: Problem set: 0 solved, 200 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/431 variables, 200/453 constraints. Problems are: Problem set: 0 solved, 200 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 431/497 variables, and 453 constraints, problems are : Problem set: 0 solved, 200 unsolved in 30014 ms.
Refiners :[Generalized P Invariants (flows): 25/25 constraints, State Equation: 228/261 constraints, PredecessorRefiner: 200/200 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 47114ms problems are : Problem set: 0 solved, 200 unsolved
Search for dead transitions found 0 dead transitions in 47115ms
Starting structural reductions in SI_LTL mode, iteration 1 : 261/481 places, 236/454 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 49189 ms. Remains : 261/481 places, 236/454 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))'
Stuttering acceptance computed with spot in 29 ms :[(NOT p0)]
Running random walk in product with property : HirschbergSinclair-PT-20-LTLCardinality-06
Product exploration explored 100000 steps with 4320 reset in 297 ms.
Product exploration explored 100000 steps with 4329 reset in 320 ms.
Computed a total of 261 stabilizing places and 236 stable transitions
Complete graph has no SCC; deadlocks are unavoidable. place count 261 transition count 236
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 2 factoid took 89 ms. Reduced automaton from 1 states, 1 edges and 1 AP (stutter insensitive) to 1 states, 1 edges and 1 AP (stutter insensitive).
RANDOM walk for 103 steps (0 resets) in 5 ms. (17 steps per ms) remains 0/1 properties
Knowledge based reduction with 2 factoid took 91 ms. Reduced automaton from 1 states, 1 edges and 1 AP (stutter insensitive) to 1 states, 1 edges and 1 AP (stutter insensitive).
Stuttering acceptance computed with spot in 37 ms :[(NOT p0)]
[2026-05-25 23:42:44] [INFO ] Invariant cache hit.
[2026-05-25 23:42:44] [INFO ] [Real]Absence check using 0 positive and 25 generalized place invariants in 12 ms returned sat
[2026-05-25 23:42:50] [INFO ] [Real]Absence check using state equation in 5657 ms returned sat
[2026-05-25 23:42:50] [INFO ] Solution in real domain found non-integer solution.
[2026-05-25 23:42:50] [INFO ] [Nat]Absence check using 0 positive and 25 generalized place invariants in 21 ms returned sat
[2026-05-25 23:42:55] [INFO ] [Nat]Absence check using state equation in 4741 ms returned sat
[2026-05-25 23:42:55] [INFO ] Computed and/alt/rep : 189/196/189 causal constraints (skipped 11 transitions) in 12 ms.
[2026-05-25 23:42:57] [INFO ] Added : 101 causal constraints over 21 iterations in 2534 ms. Result :sat
Could not prove EG (NOT p0)
Knowledge-based reduction took 13512 ms.
Stuttering acceptance computed with spot in 41 ms :[(NOT p0)]
Support contains 1 out of 261 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 261/261 places, 236/236 transitions.
Applied a total of 0 rules in 11 ms. Remains 261 /261 variables (removed 0) and now considering 236/236 (removed 0) transitions.
[2026-05-25 23:42:58] [INFO ] Invariant cache hit.
[2026-05-25 23:42:58] [INFO ] Implicit Places using invariants in 190 ms returned []
[2026-05-25 23:42:58] [INFO ] Invariant cache hit.
[2026-05-25 23:43:00] [INFO ] Implicit Places using invariants and state equation in 1863 ms returned []
Implicit Place search using SMT with State Equation took 2054 ms to find 0 implicit places.
[2026-05-25 23:43:00] [INFO ] Redundant transitions in 2 ms returned []
Skipped dead transition search.
Finished structural reductions in SI_LTL mode , in 1 iterations and 2071 ms. Remains : 261/261 places, 236/236 transitions.
Computed a total of 261 stabilizing places and 236 stable transitions
Complete graph has no SCC; deadlocks are unavoidable. place count 261 transition count 236
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 2 factoid took 99 ms. Reduced automaton from 1 states, 1 edges and 1 AP (stutter insensitive) to 1 states, 1 edges and 1 AP (stutter insensitive).
RANDOM walk for 91 steps (0 resets) in 7 ms. (11 steps per ms) remains 0/1 properties
Knowledge based reduction with 2 factoid took 113 ms. Reduced automaton from 1 states, 1 edges and 1 AP (stutter insensitive) to 1 states, 1 edges and 1 AP (stutter insensitive).
Stuttering acceptance computed with spot in 40 ms :[(NOT p0)]
[2026-05-25 23:43:00] [INFO ] Invariant cache hit.
[2026-05-25 23:43:00] [INFO ] [Real]Absence check using 0 positive and 25 generalized place invariants in 12 ms returned sat
[2026-05-25 23:43:06] [INFO ] [Real]Absence check using state equation in 5605 ms returned sat
[2026-05-25 23:43:06] [INFO ] Solution in real domain found non-integer solution.
[2026-05-25 23:43:06] [INFO ] [Nat]Absence check using 0 positive and 25 generalized place invariants in 20 ms returned sat
[2026-05-25 23:43:11] [INFO ] [Nat]Absence check using state equation in 4735 ms returned sat
[2026-05-25 23:43:11] [INFO ] Computed and/alt/rep : 189/196/189 causal constraints (skipped 11 transitions) in 11 ms.
[2026-05-25 23:43:13] [INFO ] Added : 101 causal constraints over 21 iterations in 2514 ms. Result :sat
Could not prove EG (NOT p0)
Knowledge-based reduction took 13482 ms.
Stuttering acceptance computed with spot in 26 ms :[(NOT p0)]
Stuttering acceptance computed with spot in 35 ms :[(NOT p0)]
Product exploration explored 100000 steps with 4272 reset in 305 ms.
Product exploration explored 100000 steps with 4365 reset in 325 ms.
Built C files in :
/tmp/ltsmin17037596067204998224
[2026-05-25 23:43:14] [INFO ] Computing symmetric may disable matrix : 236 transitions.
[2026-05-25 23:43:14] [INFO ] Computation of Complete disable matrix. took 2 ms. Total solver calls (SAT/UNSAT): 0(0/0)
[2026-05-25 23:43:14] [INFO ] Computing symmetric may enable matrix : 236 transitions.
[2026-05-25 23:43:14] [INFO ] Computation of Complete enable matrix. took 0 ms. Total solver calls (SAT/UNSAT): 0(0/0)
[2026-05-25 23:43:14] [INFO ] Computing Do-Not-Accords matrix : 236 transitions.
[2026-05-25 23:43:14] [INFO ] Computation of Completed DNA matrix. took 3 ms. Total solver calls (SAT/UNSAT): 0(0/0)
[2026-05-25 23:43:14] [INFO ] Built C files in 41ms conformant to PINS (ltsmin variant)in folder :/tmp/ltsmin17037596067204998224
Running compilation step : cd /tmp/ltsmin17037596067204998224;'/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 462 ms.
Running link step : cd /tmp/ltsmin17037596067204998224;'gcc' '-shared' '-o' 'gal.so' 'model.o'
Link finished in 37 ms.
Running LTSmin : cd /tmp/ltsmin17037596067204998224;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.ltsmin.binaries_1.0.0.202604301425/bin/pins2lts-seq-linux64' './gal.so' '-p' '--pins-guards' '--when' '--hoa' '/tmp/stateBased15850841041629718384.hoa' '--buchi-type=spotba'
LTSmin run took 293 ms.
FORMULA HirschbergSinclair-PT-20-LTLCardinality-06 TRUE TECHNIQUES PARTIAL_ORDER EXPLICIT LTSMIN SAT_SMT
Treatment of property HirschbergSinclair-PT-20-LTLCardinality-06 finished in 80538 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(G(F(p0)))'
Support contains 2 out of 481 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 481/481 places, 454/454 transitions.
Graph (complete) has 913 edges and 481 vertex of which 479 are kept as prefixes of interest. Removing 2 places using SCC suffix rule.4 ms
Discarding 2 places :
Also discarding 0 output transitions
Reduce places removed 19 places and 19 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 197 transitions
Trivial Post-agglo rules discarded 197 transitions
Performed 197 trivial Post agglomeration. Transition count delta: 197
Iterating post reduction 0 with 197 rules applied. Total rules applied 198 place count 460 transition count 238
Reduce places removed 197 places and 0 transitions.
Performed 2 Post agglomeration using F-continuation condition.Transition count delta: 2
Iterating post reduction 1 with 199 rules applied. Total rules applied 397 place count 263 transition count 236
Reduce places removed 2 places and 0 transitions.
Iterating post reduction 2 with 2 rules applied. Total rules applied 399 place count 261 transition count 236
Discarding 6 places :
Symmetric choice reduction at 3 with 6 rule applications. Total rules 405 place count 255 transition count 230
Iterating global reduction 3 with 6 rules applied. Total rules applied 411 place count 255 transition count 230
Drop transitions (Trivial Post-Agglo cleanup.) removed 3 transitions
Trivial Post-agglo rules discarded 3 transitions
Performed 3 trivial Post agglomeration. Transition count delta: 3
Iterating post reduction 3 with 3 rules applied. Total rules applied 414 place count 255 transition count 227
Reduce places removed 3 places and 0 transitions.
Iterating post reduction 4 with 3 rules applied. Total rules applied 417 place count 252 transition count 227
Applied a total of 417 rules in 30 ms. Remains 252 /481 variables (removed 229) and now considering 227/454 (removed 227) transitions.
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-6246591592440614268.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-3514044012374508643.kers'
[2026-05-25 23:43:15] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-6246591592440614268.kers, --Pflows, --basisKERS=/tmp/petrispot-output-3514044012374508643.kers]
Culled 0 columns in 0 ms.
// Phase 1: matrix 227 rows 252 cols 468 entries
Finished phase 1 with 222 SingleSign rule and 5 generalized
[2026-05-25 23:43:15] [INFO ] Computed 25 invariants in 0 ms
Computed 25 P flows in 1 ms.
Exported basis to /tmp/petrispot-output-3514044012374508643.kers
Total runtime 1 ms.
[2026-05-25 23:43:15] [INFO ] Implicit Places using invariants in 178 ms returned []
[2026-05-25 23:43:15] [INFO ] Invariant cache hit.
[2026-05-25 23:43:15] [INFO ] State equation strengthened by 10 read => feed constraints.
[2026-05-25 23:43:17] [INFO ] Implicit Places using invariants and state equation in 2559 ms returned []
Implicit Place search using SMT with State Equation took 2740 ms to find 0 implicit places.
[2026-05-25 23:43:17] [INFO ] Redundant transitions in 5 ms returned []
Running 191 sub problems to find dead transitions.
[2026-05-25 23:43:17] [INFO ] Invariant cache hit.
[2026-05-25 23:43:17] [INFO ] State equation strengthened by 10 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/216 variables, 21/21 constraints. Problems are: Problem set: 0 solved, 191 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/216 variables, 0/21 constraints. Problems are: Problem set: 0 solved, 191 unsolved
At refinement iteration 2 (OVERLAPS) 3/219 variables, 4/25 constraints. Problems are: Problem set: 0 solved, 191 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/219 variables, 0/25 constraints. Problems are: Problem set: 0 solved, 191 unsolved
At refinement iteration 4 (OVERLAPS) 194/413 variables, 219/244 constraints. Problems are: Problem set: 0 solved, 191 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/413 variables, 10/254 constraints. Problems are: Problem set: 0 solved, 191 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/413 variables, 0/254 constraints. Problems are: Problem set: 0 solved, 191 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 413/479 variables, and 254 constraints, problems are : Problem set: 0 solved, 191 unsolved in 30010 ms.
Refiners :[Generalized P Invariants (flows): 25/25 constraints, State Equation: 219/252 constraints, ReadFeed: 10/10 constraints, PredecessorRefiner: 191/191 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 191 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/216 variables, 21/21 constraints. Problems are: Problem set: 0 solved, 191 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/216 variables, 0/21 constraints. Problems are: Problem set: 0 solved, 191 unsolved
At refinement iteration 2 (OVERLAPS) 3/219 variables, 4/25 constraints. Problems are: Problem set: 0 solved, 191 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/219 variables, 0/25 constraints. Problems are: Problem set: 0 solved, 191 unsolved
At refinement iteration 4 (OVERLAPS) 194/413 variables, 219/244 constraints. Problems are: Problem set: 0 solved, 191 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/413 variables, 10/254 constraints. Problems are: Problem set: 0 solved, 191 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/413 variables, 191/445 constraints. Problems are: Problem set: 0 solved, 191 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/413 variables, 0/445 constraints. Problems are: Problem set: 0 solved, 191 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 413/479 variables, and 445 constraints, problems are : Problem set: 0 solved, 191 unsolved in 30018 ms.
Refiners :[Generalized P Invariants (flows): 25/25 constraints, State Equation: 219/252 constraints, ReadFeed: 10/10 constraints, PredecessorRefiner: 191/191 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 60037ms problems are : Problem set: 0 solved, 191 unsolved
Search for dead transitions found 0 dead transitions in 60038ms
Starting structural reductions in SI_LTL mode, iteration 1 : 252/481 places, 227/454 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 62819 ms. Remains : 252/481 places, 227/454 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 87 ms :[(NOT p0), (NOT p0)]
Running random walk in product with property : HirschbergSinclair-PT-20-LTLCardinality-08
Stuttering criterion allowed to conclude after 991 steps with 32 reset in 6 ms.
FORMULA HirschbergSinclair-PT-20-LTLCardinality-08 FALSE TECHNIQUES STUTTER_TEST
Treatment of property HirschbergSinclair-PT-20-LTLCardinality-08 finished in 62936 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((F(p0)||X(p1)))))'
Support contains 3 out of 481 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 481/481 places, 454/454 transitions.
Reduce places removed 2 places and 0 transitions.
Iterating post reduction 0 with 2 rules applied. Total rules applied 2 place count 479 transition count 454
Discarding 5 places :
Symmetric choice reduction at 1 with 5 rule applications. Total rules 7 place count 474 transition count 449
Iterating global reduction 1 with 5 rules applied. Total rules applied 12 place count 474 transition count 449
Discarding 2 places :
Symmetric choice reduction at 1 with 2 rule applications. Total rules 14 place count 472 transition count 447
Iterating global reduction 1 with 2 rules applied. Total rules applied 16 place count 472 transition count 447
Applied a total of 16 rules in 35 ms. Remains 472 /481 variables (removed 9) and now considering 447/454 (removed 7) transitions.
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-2924597627803129322.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-15157399135585310648.kers'
[2026-05-25 23:44:18] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-2924597627803129322.kers, --Pflows, --basisKERS=/tmp/petrispot-output-15157399135585310648.kers]
Culled 0 columns in 0 ms.
// Phase 1: matrix 447 rows 472 cols 1345 entries
Finished phase 1 with 442 SingleSign rule and 5 generalized
[2026-05-25 23:44:18] [INFO ] Computed 25 invariants in 1 ms
Computed 25 P flows in 2 ms.
Exported basis to /tmp/petrispot-output-15157399135585310648.kers
Total runtime 2 ms.
[2026-05-25 23:44:18] [INFO ] Implicit Places using invariants in 152 ms returned []
[2026-05-25 23:44:18] [INFO ] Invariant cache hit.
[2026-05-25 23:44:24] [INFO ] Implicit Places using invariants and state equation in 6711 ms returned []
Implicit Place search using SMT with State Equation took 6865 ms to find 0 implicit places.
Running 427 sub problems to find dead transitions.
[2026-05-25 23:44:24] [INFO ] Invariant cache hit.
At refinement iteration 0 (INCLUDED_ONLY) 0/452 variables, 4/4 constraints. Problems are: Problem set: 0 solved, 427 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/452 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 427 unsolved
At refinement iteration 2 (OVERLAPS) 20/472 variables, 21/25 constraints. Problems are: Problem set: 0 solved, 427 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/472 variables, 0/25 constraints. Problems are: Problem set: 0 solved, 427 unsolved
At refinement iteration 4 (OVERLAPS) 447/919 variables, 472/497 constraints. Problems are: Problem set: 0 solved, 427 unsolved
Error getting values : (error "Timeout of Z3 solver reached")
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 919/919 variables, and 497 constraints, problems are : Problem set: 0 solved, 427 unsolved in 30015 ms.
Refiners :[Generalized P Invariants (flows): 25/25 constraints, State Equation: 472/472 constraints, PredecessorRefiner: 427/427 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 427 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/452 variables, 4/4 constraints. Problems are: Problem set: 0 solved, 427 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/452 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 427 unsolved
At refinement iteration 2 (OVERLAPS) 20/472 variables, 21/25 constraints. Problems are: Problem set: 0 solved, 427 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/472 variables, 0/25 constraints. Problems are: Problem set: 0 solved, 427 unsolved
At refinement iteration 4 (OVERLAPS) 447/919 variables, 472/497 constraints. Problems are: Problem set: 0 solved, 427 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/919 variables, 427/924 constraints. Problems are: Problem set: 0 solved, 427 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 919/919 variables, and 924 constraints, problems are : Problem set: 0 solved, 427 unsolved in 30022 ms.
Refiners :[Generalized P Invariants (flows): 25/25 constraints, State Equation: 472/472 constraints, PredecessorRefiner: 427/427 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 60081ms problems are : Problem set: 0 solved, 427 unsolved
Search for dead transitions found 0 dead transitions in 60083ms
Starting structural reductions in LTL mode, iteration 1 : 472/481 places, 447/454 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 66987 ms. Remains : 472/481 places, 447/454 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((F(p0)||X(p1)))))'
Stuttering acceptance computed with spot in 211 ms :[(AND (NOT p0) (NOT p1)), (AND (NOT p0) (NOT p1)), (AND (NOT p0) (NOT p1)), (AND (NOT p0) (NOT p1)), (NOT p0)]
Running random walk in product with property : HirschbergSinclair-PT-20-LTLCardinality-10
Product exploration explored 100000 steps with 33333 reset in 240 ms.
Product exploration explored 100000 steps with 33333 reset in 236 ms.
Computed a total of 472 stabilizing places and 447 stable transitions
Complete graph has no SCC; deadlocks are unavoidable. place count 472 transition count 447
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)...)
Property proved to be true by K+ with min(!phi)
Knowledge based reduction with 4 factoid took 11 ms. Proved property starting from automaton with 5 states, 5 edges and 2 AP (stutter sensitive
Knowledge-based reduction took 135 ms.
FORMULA HirschbergSinclair-PT-20-LTLCardinality-10 TRUE TECHNIQUES KNOWLEDGE
Treatment of property HirschbergSinclair-PT-20-LTLCardinality-10 finished in 67852 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X((X(p0)&&F(p1))))'
Support contains 3 out of 481 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 481/481 places, 454/454 transitions.
Reduce places removed 2 places and 0 transitions.
Iterating post reduction 0 with 2 rules applied. Total rules applied 2 place count 479 transition count 454
Discarding 5 places :
Symmetric choice reduction at 1 with 5 rule applications. Total rules 7 place count 474 transition count 449
Iterating global reduction 1 with 5 rules applied. Total rules applied 12 place count 474 transition count 449
Discarding 3 places :
Symmetric choice reduction at 1 with 3 rule applications. Total rules 15 place count 471 transition count 446
Iterating global reduction 1 with 3 rules applied. Total rules applied 18 place count 471 transition count 446
Applied a total of 18 rules in 38 ms. Remains 471 /481 variables (removed 10) and now considering 446/454 (removed 8) transitions.
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-399775098489236663.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-16799347414647077648.kers'
[2026-05-25 23:45:25] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-399775098489236663.kers, --Pflows, --basisKERS=/tmp/petrispot-output-16799347414647077648.kers]
Culled 0 columns in 1 ms.
// Phase 1: matrix 446 rows 471 cols 1343 entries
Finished phase 1 with 441 SingleSign rule and 5 generalized
[2026-05-25 23:45:25] [INFO ] Computed 25 invariants in 6 ms
Computed 25 P flows in 7 ms.
Exported basis to /tmp/petrispot-output-16799347414647077648.kers
Total runtime 8 ms.
[2026-05-25 23:45:26] [INFO ] Implicit Places using invariants in 182 ms returned []
[2026-05-25 23:45:26] [INFO ] Invariant cache hit.
[2026-05-25 23:45:33] [INFO ] Implicit Places using invariants and state equation in 7079 ms returned []
Implicit Place search using SMT with State Equation took 7263 ms to find 0 implicit places.
Running 426 sub problems to find dead transitions.
[2026-05-25 23:45:33] [INFO ] Invariant cache hit.
At refinement iteration 0 (INCLUDED_ONLY) 0/451 variables, 4/4 constraints. Problems are: Problem set: 0 solved, 426 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/451 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 426 unsolved
At refinement iteration 2 (OVERLAPS) 20/471 variables, 21/25 constraints. Problems are: Problem set: 0 solved, 426 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/471 variables, 0/25 constraints. Problems are: Problem set: 0 solved, 426 unsolved
At refinement iteration 4 (OVERLAPS) 446/917 variables, 471/496 constraints. Problems are: Problem set: 0 solved, 426 unsolved
Error getting values : (error "Timeout of Z3 solver reached")
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 917/917 variables, and 496 constraints, problems are : Problem set: 0 solved, 426 unsolved in 30016 ms.
Refiners :[Generalized P Invariants (flows): 25/25 constraints, State Equation: 471/471 constraints, PredecessorRefiner: 426/426 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 426 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/451 variables, 4/4 constraints. Problems are: Problem set: 0 solved, 426 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/451 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 426 unsolved
At refinement iteration 2 (OVERLAPS) 20/471 variables, 21/25 constraints. Problems are: Problem set: 0 solved, 426 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/471 variables, 0/25 constraints. Problems are: Problem set: 0 solved, 426 unsolved
At refinement iteration 4 (OVERLAPS) 446/917 variables, 471/496 constraints. Problems are: Problem set: 0 solved, 426 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/917 variables, 426/922 constraints. Problems are: Problem set: 0 solved, 426 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 917/917 variables, and 922 constraints, problems are : Problem set: 0 solved, 426 unsolved in 30020 ms.
Refiners :[Generalized P Invariants (flows): 25/25 constraints, State Equation: 471/471 constraints, PredecessorRefiner: 426/426 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 60079ms problems are : Problem set: 0 solved, 426 unsolved
Search for dead transitions found 0 dead transitions in 60081ms
Starting structural reductions in LTL mode, iteration 1 : 471/481 places, 446/454 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 67385 ms. Remains : 471/481 places, 446/454 transitions.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X((X(p0)&&F(p1))))'
Stuttering acceptance computed with spot in 173 ms :[(OR (NOT p1) (NOT p0)), (OR (NOT p0) (NOT p1)), (NOT p0), (NOT p1), true]
Running random walk in product with property : HirschbergSinclair-PT-20-LTLCardinality-14
Product exploration explored 100000 steps with 667 reset in 241 ms.
Product exploration explored 100000 steps with 717 reset in 262 ms.
Computed a total of 471 stabilizing places and 446 stable transitions
Complete graph has no SCC; deadlocks are unavoidable. place count 471 transition count 446
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 6 factoid took 52 ms. Reduced automaton from 5 states, 6 edges and 2 AP (stutter sensitive) to 3 states, 3 edges and 1 AP (stutter sensitive).
RANDOM walk for 1170 steps (0 resets) in 11 ms. (97 steps per ms) remains 0/1 properties
Knowledge based reduction with 6 factoid took 75 ms. Reduced automaton from 3 states, 3 edges and 1 AP (stutter sensitive) to 3 states, 3 edges and 1 AP (stutter sensitive).
Stuttering acceptance computed with spot in 125 ms :[(NOT p1), (NOT p1), (NOT p1)]
[2026-05-25 23:46:34] [INFO ] Invariant cache hit.
[2026-05-25 23:46:34] [INFO ] [Real]Absence check using 0 positive and 25 generalized place invariants in 33 ms returned sat
[2026-05-25 23:46:49] [INFO ] [Real]Absence check using state equation in 14809 ms returned unknown
Could not prove EG (NOT p1)
Knowledge-based reduction took 15396 ms.
Stuttering acceptance computed with spot in 124 ms :[(NOT p1), (NOT p1), (NOT p1)]
Support contains 2 out of 471 places. Attempting structural reductions.
Property had overlarge support with respect to TGBA, discarding it for now.
Starting structural reductions in LTL mode, iteration 0 : 471/471 places, 446/446 transitions.
Applied a total of 0 rules in 13 ms. Remains 471 /471 variables (removed 0) and now considering 446/446 (removed 0) transitions.
[2026-05-25 23:46:49] [INFO ] Invariant cache hit.
[2026-05-25 23:46:49] [INFO ] Implicit Places using invariants in 166 ms returned []
[2026-05-25 23:46:49] [INFO ] Invariant cache hit.
[2026-05-25 23:46:56] [INFO ] Implicit Places using invariants and state equation in 7157 ms returned []
Implicit Place search using SMT with State Equation took 7325 ms to find 0 implicit places.
Skipped dead transition search.
Finished structural reductions in LTL mode , in 1 iterations and 7338 ms. Remains : 471/471 places, 446/446 transitions.
Computed a total of 471 stabilizing places and 446 stable transitions
Complete graph has no SCC; deadlocks are unavoidable. place count 471 transition count 446
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 53 ms. Reduced automaton from 3 states, 3 edges and 1 AP (stutter sensitive) to 3 states, 3 edges and 1 AP (stutter sensitive).
RANDOM walk for 1152 steps (0 resets) in 14 ms. (76 steps per ms) remains 0/1 properties
Knowledge based reduction with 3 factoid took 67 ms. Reduced automaton from 3 states, 3 edges and 1 AP (stutter sensitive) to 3 states, 3 edges and 1 AP (stutter sensitive).
Stuttering acceptance computed with spot in 138 ms :[(NOT p1), (NOT p1), (NOT p1)]
[2026-05-25 23:46:57] [INFO ] Invariant cache hit.
[2026-05-25 23:46:57] [INFO ] [Real]Absence check using 0 positive and 25 generalized place invariants in 34 ms returned sat
[2026-05-25 23:47:12] [INFO ] [Real]Absence check using state equation in 14790 ms returned unknown
Could not prove EG (NOT p1)
Knowledge-based reduction took 15396 ms.
Stuttering acceptance computed with spot in 120 ms :[(NOT p1), (NOT p1), (NOT p1)]
Stuttering acceptance computed with spot in 123 ms :[(NOT p1), (NOT p1), (NOT p1)]
Product exploration explored 100000 steps with 341 reset in 222 ms.
Product exploration explored 100000 steps with 340 reset in 227 ms.
Spot run failed in 48 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/ltsmin17130795211116777573
[2026-05-25 23:47:13] [INFO ] Built C files in 8ms conformant to PINS (ltsmin variant)in folder :/tmp/ltsmin17130795211116777573
Running compilation step : cd /tmp/ltsmin17130795211116777573;'/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 682 ms.
Running link step : cd /tmp/ltsmin17130795211116777573;'gcc' '-shared' '-o' 'gal.so' 'model.o'
Link finished in 41 ms.
Running LTSmin : cd /tmp/ltsmin17130795211116777573;'/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/stateBased80453317425952823.hoa' '--buchi-type=spotba'
WARNING : LTS min runner thread was asked to interrupt. Dying gracefully.
Support contains 2 out of 471 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 471/471 places, 446/446 transitions.
Applied a total of 0 rules in 10 ms. Remains 471 /471 variables (removed 0) and now considering 446/446 (removed 0) transitions.
[2026-05-25 23:47:28] [INFO ] Invariant cache hit.
[2026-05-25 23:47:28] [INFO ] Implicit Places using invariants in 163 ms returned []
[2026-05-25 23:47:28] [INFO ] Invariant cache hit.
[2026-05-25 23:47:35] [INFO ] Implicit Places using invariants and state equation in 7137 ms returned []
Implicit Place search using SMT with State Equation took 7302 ms to find 0 implicit places.
Skipped dead transition search.
Finished structural reductions in LTL mode , in 1 iterations and 7312 ms. Remains : 471/471 places, 446/446 transitions.
Built C files in :
/tmp/ltsmin13451015638938150694
[2026-05-25 23:47:35] [INFO ] Built C files in 10ms conformant to PINS (ltsmin variant)in folder :/tmp/ltsmin13451015638938150694
Running compilation step : cd /tmp/ltsmin13451015638938150694;'/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 653 ms.
Running link step : cd /tmp/ltsmin13451015638938150694;'gcc' '-shared' '-o' 'gal.so' 'model.o'
Link finished in 34 ms.
Running LTSmin : cd /tmp/ltsmin13451015638938150694;'/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/stateBased11819073286738274665.hoa' '--buchi-type=spotba'
WARNING : LTS min runner thread was asked to interrupt. Dying gracefully.
[2026-05-25 23:47:50] [INFO ] Flatten gal took : 35 ms
[2026-05-25 23:47:50] [INFO ] Flatten gal took : 23 ms
[2026-05-25 23:47:50] [INFO ] Time to serialize gal into /tmp/LTL3393192555206511444.gal : 6 ms
[2026-05-25 23:47:50] [INFO ] Time to serialize properties into /tmp/LTL5885941464270430243.prop : 1 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202604301425/bin/its-ltl-linux64' '--gc-threshold' '2000000' '-i' '/tmp/LTL3393192555206511444.gal' '-t' 'CGAL' '-hoa' '/tmp/aut12861981651427216900.hoa' '-atoms' '/tmp/LTL5885941464270430243.prop' '-c' '-stutter-deadlock' '--gen-order' 'FOLLOW'
its-ltl command run as :
/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202604301425/bin/its-ltl-linux64 --gc-threshold 2000000 -i /tmp/L...318
Loading property file /tmp/LTL5885941464270430243.prop.
Loaded 1 atomic propositions.
Checking formula 0 provided in automaton : /tmp/aut12861981651427216900.hoa
Detected timeout of ITS tools.
[2026-05-25 23:48:05] [INFO ] Flatten gal took : 17 ms
[2026-05-25 23:48:05] [INFO ] Flatten gal took : 16 ms
[2026-05-25 23:48:05] [INFO ] Time to serialize gal into /tmp/LTL2510169675342747013.gal : 4 ms
[2026-05-25 23:48:05] [INFO ] Time to serialize properties into /tmp/LTL17764730492521034189.ltl : 11 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202604301425/bin/its-ltl-linux64' '--gc-threshold' '2000000' '-i' '/tmp/LTL2510169675342747013.gal' '-t' 'CGAL' '-LTL' '/tmp/LTL17764730492521034189.ltl' '-c' '-stutter-deadlock' '--gen-order' 'FOLLOW'
its-ltl command run as :
/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202604301425/bin/its-ltl-linux64 --gc-threshold 2000000 -i /tmp/L...276
Read 1 LTL properties
Checking formula 0 : !((X((X("(reply_20_4_to_right_6<1)"))&&(F("(election_20_4_10_to_left_11>reply_19_0_to_right_18)")))))
Formula 0 simplified : X(X!"(reply_20_4_to_right_6<1)" | G!"(election_20_4_10_to_left_11>reply_19_0_to_right_18)")
Detected timeout of ITS tools.
[2026-05-25 23:48:20] [INFO ] Flatten gal took : 20 ms
[2026-05-25 23:48:20] [INFO ] Applying decomposition
[2026-05-25 23:48:20] [INFO ] Flatten gal took : 16 ms
Converted graph to binary with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202604301425/bin/convert-linux64' '-i' '/tmp/graph18332542637347257034.txt' '-o' '/tmp/graph18332542637347257034.bin' '-w' '/tmp/graph18332542637347257034.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202604301425/bin/louvain-linux64' '/tmp/graph18332542637347257034.bin' '-l' '-1' '-v' '-w' '/tmp/graph18332542637347257034.weights' '-q' '0' '-e' '0.001'
[2026-05-25 23:48:20] [INFO ] Decomposing Gal with order
[2026-05-25 23:48:20] [INFO ] Rewriting arrays to variables to allow decomposition.
[2026-05-25 23:48:20] [INFO ] Removed a total of 61 redundant transitions.
[2026-05-25 23:48:21] [INFO ] Flatten gal took : 104 ms
[2026-05-25 23:48:21] [INFO ] Fuse similar labels procedure discarded/fused a total of 0 labels/synchronizations in 6 ms.
[2026-05-25 23:48:21] [INFO ] Time to serialize gal into /tmp/LTL6750807246580428844.gal : 10 ms
[2026-05-25 23:48:21] [INFO ] Time to serialize properties into /tmp/LTL1564312964985854668.ltl : 0 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202604301425/bin/its-ltl-linux64' '--gc-threshold' '2000000' '-i' '/tmp/LTL6750807246580428844.gal' '-t' 'CGAL' '-LTL' '/tmp/LTL1564312964985854668.ltl' '-c' '-stutter-deadlock' '--gen-order' 'FOLLOW'
its-ltl command run as :
/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202604301425/bin/its-ltl-linux64 --gc-threshold 2000000 -i /tmp/L...275
Read 1 LTL properties
Checking formula 0 : !((X((X("(gi0.gi1.gi0.gu4.reply_20_4_to_right_6<1)"))&&(F("(gu39.election_20_4_10_to_left_11>gu39.reply_19_0_to_right_18)")))))
Formula 0 simplified : X(X!"(gi0.gi1.gi0.gu4.reply_20_4_to_right_6<1)" | G!"(gu39.election_20_4_10_to_left_11>gu39.reply_19_0_to_right_18)")
Detected timeout of ITS tools.
Treatment of property HirschbergSinclair-PT-20-LTLCardinality-14 finished in 190381 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X(X((p0&&F(p1)))))'
Support contains 3 out of 481 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 481/481 places, 454/454 transitions.
Reduce places removed 2 places and 0 transitions.
Iterating post reduction 0 with 2 rules applied. Total rules applied 2 place count 479 transition count 454
Discarding 6 places :
Symmetric choice reduction at 1 with 6 rule applications. Total rules 8 place count 473 transition count 448
Iterating global reduction 1 with 6 rules applied. Total rules applied 14 place count 473 transition count 448
Discarding 3 places :
Symmetric choice reduction at 1 with 3 rule applications. Total rules 17 place count 470 transition count 445
Iterating global reduction 1 with 3 rules applied. Total rules applied 20 place count 470 transition count 445
Applied a total of 20 rules in 35 ms. Remains 470 /481 variables (removed 11) and now considering 445/454 (removed 9) transitions.
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-14860985344473467443.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-17019053372127885585.kers'
[2026-05-25 23:48:36] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-14860985344473467443.kers, --Pflows, --basisKERS=/tmp/petrispot-output-17019053372127885585.kers]
Culled 0 columns in 1 ms.
// Phase 1: matrix 445 rows 470 cols 1340 entries
Finished phase 1 with 440 SingleSign rule and 5 generalized
[2026-05-25 23:48:36] [INFO ] Computed 25 invariants in 5 ms
Computed 25 P flows in 6 ms.
Exported basis to /tmp/petrispot-output-17019053372127885585.kers
Total runtime 7 ms.
[2026-05-25 23:48:36] [INFO ] Implicit Places using invariants in 194 ms returned []
[2026-05-25 23:48:36] [INFO ] Invariant cache hit.
[2026-05-25 23:48:43] [INFO ] Implicit Places using invariants and state equation in 7316 ms returned []
Implicit Place search using SMT with State Equation took 7512 ms to find 0 implicit places.
Running 425 sub problems to find dead transitions.
[2026-05-25 23:48:43] [INFO ] Invariant cache hit.
At refinement iteration 0 (INCLUDED_ONLY) 0/450 variables, 4/4 constraints. Problems are: Problem set: 0 solved, 425 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/450 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 425 unsolved
At refinement iteration 2 (OVERLAPS) 20/470 variables, 21/25 constraints. Problems are: Problem set: 0 solved, 425 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/470 variables, 0/25 constraints. Problems are: Problem set: 0 solved, 425 unsolved
At refinement iteration 4 (OVERLAPS) 445/915 variables, 470/495 constraints. Problems are: Problem set: 0 solved, 425 unsolved
Error getting values : (error "Timeout of Z3 solver reached")
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 915/915 variables, and 495 constraints, problems are : Problem set: 0 solved, 425 unsolved in 30017 ms.
Refiners :[Generalized P Invariants (flows): 25/25 constraints, State Equation: 470/470 constraints, PredecessorRefiner: 425/425 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 425 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/450 variables, 4/4 constraints. Problems are: Problem set: 0 solved, 425 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/450 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 425 unsolved
At refinement iteration 2 (OVERLAPS) 20/470 variables, 21/25 constraints. Problems are: Problem set: 0 solved, 425 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/470 variables, 0/25 constraints. Problems are: Problem set: 0 solved, 425 unsolved
At refinement iteration 4 (OVERLAPS) 445/915 variables, 470/495 constraints. Problems are: Problem set: 0 solved, 425 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/915 variables, 425/920 constraints. Problems are: Problem set: 0 solved, 425 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 915/915 variables, and 920 constraints, problems are : Problem set: 0 solved, 425 unsolved in 30021 ms.
Refiners :[Generalized P Invariants (flows): 25/25 constraints, State Equation: 470/470 constraints, PredecessorRefiner: 425/425 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 60092ms problems are : Problem set: 0 solved, 425 unsolved
Search for dead transitions found 0 dead transitions in 60094ms
Starting structural reductions in LTL mode, iteration 1 : 470/481 places, 445/454 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 67644 ms. Remains : 470/481 places, 445/454 transitions.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X(X((p0&&F(p1)))))'
Stuttering acceptance computed with spot in 171 ms :[(NOT p1), (OR (NOT p0) (NOT p1)), (OR (NOT p0) (NOT p1)), true, (OR (NOT p0) (NOT p1))]
Running random walk in product with property : HirschbergSinclair-PT-20-LTLCardinality-15
Entered a terminal (fully accepting) state of product in 2 steps with 0 reset in 0 ms.
FORMULA HirschbergSinclair-PT-20-LTLCardinality-15 FALSE TECHNIQUES STUTTER_TEST
Treatment of property HirschbergSinclair-PT-20-LTLCardinality-15 finished in 67848 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202604301425/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X((X(p0)&&F(p1))))'
Spot run failed in 39 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/senseclsl.py", line 2, in
import spot, sys
ModuleNotFoundError: No module named 'spot'
Warning : SL/CL computation failed.
[2026-05-25 23:49:44] [INFO ] Flatten gal took : 19 ms
Using solver Z3 to compute partial order matrices.
Built C files in :
/tmp/ltsmin11535654799481653016
[2026-05-25 23:49:44] [INFO ] Applying decomposition
[2026-05-25 23:49:44] [INFO ] Computing symmetric may disable matrix : 454 transitions.
[2026-05-25 23:49:44] [INFO ] Computation of Complete disable matrix. took 1 ms. Total solver calls (SAT/UNSAT): 0(0/0)
[2026-05-25 23:49:44] [INFO ] Computing symmetric may enable matrix : 454 transitions.
[2026-05-25 23:49:44] [INFO ] Computation of Complete enable matrix. took 1 ms. Total solver calls (SAT/UNSAT): 0(0/0)
[2026-05-25 23:49:44] [INFO ] Flatten gal took : 25 ms
Converted graph to binary with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202604301425/bin/convert-linux64' '-i' '/tmp/graph6894046776987596706.txt' '-o' '/tmp/graph6894046776987596706.bin' '-w' '/tmp/graph6894046776987596706.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202604301425/bin/louvain-linux64' '/tmp/graph6894046776987596706.bin' '-l' '-1' '-v' '-w' '/tmp/graph6894046776987596706.weights' '-q' '0' '-e' '0.001'
[2026-05-25 23:49:44] [INFO ] Decomposing Gal with order
[2026-05-25 23:49:44] [INFO ] Rewriting arrays to variables to allow decomposition.
[2026-05-25 23:49:44] [INFO ] Computing Do-Not-Accords matrix : 454 transitions.
[2026-05-25 23:49:44] [INFO ] Computation of Completed DNA matrix. took 9 ms. Total solver calls (SAT/UNSAT): 0(0/0)
[2026-05-25 23:49:44] [INFO ] Built C files in 96ms conformant to PINS (ltsmin variant)in folder :/tmp/ltsmin11535654799481653016
Running compilation step : cd /tmp/ltsmin11535654799481653016;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.ltsmin.binaries_1.0.0.202604301425/bin/limit_time.pl' '720' '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'
[2026-05-25 23:49:44] [INFO ] Removed a total of 47 redundant transitions.
[2026-05-25 23:49:44] [INFO ] Flatten gal took : 53 ms
[2026-05-25 23:49:44] [INFO ] Fuse similar labels procedure discarded/fused a total of 0 labels/synchronizations in 2 ms.
[2026-05-25 23:49:44] [INFO ] Time to serialize gal into /tmp/LTLCardinality5686887476536804209.gal : 4 ms
[2026-05-25 23:49:44] [INFO ] Time to serialize properties into /tmp/LTLCardinality10510501533414460720.ltl : 0 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202604301425/bin/its-ltl-linux64' '--gc-threshold' '2000000' '-i' '/tmp/LTLCardinality5686887476536804209.gal' '-t' 'CGAL' '-LTL' '/tmp/LTLCardinality10510501533414460720.ltl' '-c' '-stutter-deadlock' '--gen-order' 'FOLLOW'
its-ltl command run as :
/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202604301425/bin/its-ltl-linux64 --gc-threshold 2000000 -i /tmp/L...298
Read 1 LTL properties
Checking formula 0 : !((X((X("(gi0.gi1.gi0.gu5.reply_20_4_to_right_6<1)"))&&(F("(gu37.election_20_4_10_to_left_11>gu37.reply_19_0_to_right_18)")))))
Formula 0 simplified : X(X!"(gi0.gi1.gi0.gu5.reply_20_4_to_right_6<1)" | G!"(gu37.election_20_4_10_to_left_11>gu37.reply_19_0_to_right_18)")
Compilation finished in 961 ms.
Running link step : cd /tmp/ltsmin11535654799481653016;'gcc' '-shared' '-o' 'gal.so' 'model.o'
Link finished in 41 ms.
Running LTSmin : cd /tmp/ltsmin11535654799481653016;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.ltsmin.binaries_1.0.0.202604301425/bin/pins2lts-seq-linux64' './gal.so' '--when' '--ltl' 'X((X((LTLAPp0==true))&&<>((LTLAPp1==true))))' '--buchi-type=spotba'
Reverse transition relation is NOT exact ! Due to transitions gi0.gi0.gi0.gu1.t27, gi0.gi0.gi0.gu1.t31, gi0.gi0.gi0.gu16.t99, gi0.gi0.gi0.gu16.t433, gi0.gi...1172
Computing Next relation with stutter on 1.36688e+15 deadlock states
5 unique states visited
4 strongly connected components in search stack
5 transitions explored
4 items max in DFS search stack
51612 ticks for the emptiness check
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
STATS,0,516.207,3344028,1,0,812,1.45272e+07,13,639,6658,1.74165e+07,1006
an accepting run exists (use option '-e' to print it)
Formula 0 is FALSE accepting run found.
FORMULA HirschbergSinclair-PT-20-LTLCardinality-14 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN
WARNING : LTS min runner thread was asked to interrupt. Dying gracefully.
Total runtime 1236546 ms.
BK_STOP 1779753512013
--------------------
content from stderr:
+ export BINDIR=/home/mcc/BenchKit/bin//../itstools/bin//../
+ BINDIR=/home/mcc/BenchKit/bin//../itstools/bin//../
++ pwd
+ export MODEL=/home/mcc/execution
+ MODEL=/home/mcc/execution
+ [[ LTLCardinality = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution LTLCardinality -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600
+ ulimit -s 65536
+ [[ -z '' ]]
+ export LTSMIN_MEM_SIZE=8589934592
+ LTSMIN_MEM_SIZE=8589934592
++ sed s/.jar//
++ perl -pe 's/.*\.//g'
++ ls /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202604301425.jar
+ VERSION=202604301425
+ echo 'Running Version 202604301425'
+ /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/its-tools -pnfolder /home/mcc/execution -examination LTLCardinality -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600
Sequence of Actions to be Executed by the VM
This is useful if one wants to reexecute the tool in the VM from the submitted image disk.
set -x
# this is for BenchKit: configuration of major elements for the test
export BK_INPUT="HirschbergSinclair-PT-20"
export BK_EXAMINATION="LTLCardinality"
export BK_TOOL="itstools"
export BK_RESULT_DIR="/tmp/BK_RESULTS/OUTPUTS"
export BK_TIME_CONFINEMENT="3600"
export BK_MEMORY_CONFINEMENT="16384"
export BK_BIN_PATH="/home/mcc/BenchKit/bin/"
# this is specific to your benchmark or test
export BIN_DIR="$HOME/BenchKit/bin"
# remove the execution directoty if it exists (to avoid increse of .vmdk images)
if [ -d execution ] ; then
rm -rf execution
fi
# this is for BenchKit: explicit launching of the test
echo "====================================================================="
echo " Generated by BenchKit 2-5973"
echo " Executing tool itstools"
echo " Input is HirschbergSinclair-PT-20, examination is LTLCardinality"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r146-tall-177961074400755"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"
tar xzf /home/mcc/BenchKit/INPUTS/HirschbergSinclair-PT-20.tgz
mv HirschbergSinclair-PT-20 execution
cd execution
if [ "LTLCardinality" = "ReachabilityDeadlock" ] || [ "LTLCardinality" = "UpperBounds" ] || [ "LTLCardinality" = "QuasiLiveness" ] || [ "LTLCardinality" = "StableMarking" ] || [ "LTLCardinality" = "Liveness" ] || [ "LTLCardinality" = "OneSafe" ] || [ "LTLCardinality" = "StateSpace" ]; then
rm -f GenericPropertiesVerdict.xml
fi
pwd
ls -lh
echo
echo "--------------------"
echo "content from stdout:"
echo
echo "=== Data for post analysis generated by BenchKit (invocation template)"
echo
if [ "LTLCardinality" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "LTLCardinality" != "StateSpace" ] ; then
echo "The expected result is a vector of booleans"
echo BOOL_VECTOR
else
echo "no data necessary for post analysis"
fi
echo
if [ -f "LTLCardinality.xml" ] ; then # for cunf (txt files deleted;-)
echo echo "here is the order used to build the result vector(from xml file)"
for x in $(grep '
echo "FORMULA_NAME $x"
done
elif [ "LTLCardinality" = "ReachabilityDeadlock" ] || [ "LTLCardinality" = "QuasiLiveness" ] || [ "LTLCardinality" = "StableMarking" ] || [ "LTLCardinality" = "Liveness" ] || [ "LTLCardinality" = "OneSafe" ] ; then
echo "FORMULA_NAME LTLCardinality"
fi
echo
echo "=== Now, execution of the tool begins"
echo
echo -n "BK_START "
date -u +%s%3N
echo
timeout -s 9 $BK_TIME_CONFINEMENT bash -c "/home/mcc/BenchKit/BenchKit_head.sh 2> STDERR ; echo ; echo -n \"BK_STOP \" ; date -u +%s%3N"
if [ $? -eq 137 ] ; then
echo
echo "BK_TIME_CONFINEMENT_REACHED"
fi
echo
echo "--------------------"
echo "content from stderr:"
echo
cat STDERR ;