Execution Chart

Sorry, for this execution, no execution chart could be reported.

Trace from the execution

Formatting '/data/fkordon/mcc2025-input.r212-tall-174901994000260.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2025-input.qcow2 backing_fmt=qcow2 cluster_size=65536 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
...........................................
=====================================================================
Generated by BenchKit 2-5832
Executing tool itstools
Input is ShieldRVt-PT-010A, examination is LTLFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r212-tall-174901994000260
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 512K
-rw-r--r-- 1 mcc users 7.1K May 29 14:47 CTLCardinality.txt
-rw-r--r-- 1 mcc users 78K May 29 14:47 CTLCardinality.xml
-rw-r--r-- 1 mcc users 4.1K May 29 14:47 CTLFireability.txt
-rw-r--r-- 1 mcc users 33K May 29 14:47 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K May 29 14:33 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.6K May 29 14:33 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 3.7K May 29 14:47 LTLCardinality.txt
-rw-r--r-- 1 mcc users 27K May 29 14:47 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.1K May 29 14:47 LTLFireability.txt
-rw-r--r-- 1 mcc users 17K May 29 14:47 LTLFireability.xml
-rw-r--r-- 1 mcc users 13K May 29 14:47 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 148K May 29 14:47 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 9.1K May 29 14:47 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 82K May 29 14:47 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K May 29 14:47 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.6K May 29 14:47 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 May 29 14:33 equiv_col
-rw-r--r-- 1 mcc users 5 May 29 14:33 instance
-rw-r--r-- 1 mcc users 6 May 29 14:33 iscolored
-rw-r--r-- 1 mcc users 27K May 29 14:33 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 ShieldRVt-PT-010A-LTLFireability-00
FORMULA_NAME ShieldRVt-PT-010A-LTLFireability-01
FORMULA_NAME ShieldRVt-PT-010A-LTLFireability-02
FORMULA_NAME ShieldRVt-PT-010A-LTLFireability-03
FORMULA_NAME ShieldRVt-PT-010A-LTLFireability-04
FORMULA_NAME ShieldRVt-PT-010A-LTLFireability-05
FORMULA_NAME ShieldRVt-PT-010A-LTLFireability-06
FORMULA_NAME ShieldRVt-PT-010A-LTLFireability-07
FORMULA_NAME ShieldRVt-PT-010A-LTLFireability-08
FORMULA_NAME ShieldRVt-PT-010A-LTLFireability-09
FORMULA_NAME ShieldRVt-PT-010A-LTLFireability-10
FORMULA_NAME ShieldRVt-PT-010A-LTLFireability-11
FORMULA_NAME ShieldRVt-PT-010A-LTLFireability-12
FORMULA_NAME ShieldRVt-PT-010A-LTLFireability-13
FORMULA_NAME ShieldRVt-PT-010A-LTLFireability-14
FORMULA_NAME ShieldRVt-PT-010A-LTLFireability-15

=== Now, execution of the tool begins

BK_START 1749102751833

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=LTLFireability
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=ShieldRVt-PT-010A
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
LTLFireability PT
Running Version 202505121319
[2025-06-05 05:52:33] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, LTLFireability, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2025-06-05 05:52:33] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2025-06-05 05:52:33] [INFO ] Load time of PNML (sax parser for PT used): 55 ms
[2025-06-05 05:52:33] [INFO ] Transformed 83 places.
[2025-06-05 05:52:33] [INFO ] Transformed 83 transitions.
[2025-06-05 05:52:33] [INFO ] Found NUPN structural information;
[2025-06-05 05:52:33] [INFO ] Parsed PT model containing 83 places and 83 transitions and 346 arcs in 159 ms.
Parsed 16 properties from file /home/mcc/execution/LTLFireability.xml in 9 ms.
Working with output stream class java.io.PrintStream
Ensure Unique test removed 1 transitions
Reduce redundant transitions removed 1 transitions.
Support contains 46 out of 83 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 83/83 places, 82/82 transitions.
Applied a total of 0 rules in 8 ms. Remains 83 /83 variables (removed 0) and now considering 82/82 (removed 0) transitions.
// Phase 1: matrix 82 rows 83 cols
[2025-06-05 05:52:33] [INFO ] Computed 41 invariants in 10 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-05 05:52:33] [INFO ] Implicit Places using invariants in 191 ms returned []
[2025-06-05 05:52:33] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-05 05:52:33] [INFO ] Implicit Places using invariants and state equation in 81 ms returned []
Implicit Place search using SMT with State Equation took 310 ms to find 0 implicit places.
Running 81 sub problems to find dead transitions.
[2025-06-05 05:52:33] [INFO ] Invariant cache hit.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/82 variables, 82/82 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/82 variables, 0/82 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 2 (OVERLAPS) 1/83 variables, 41/123 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/83 variables, 1/124 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/83 variables, 0/124 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 5 (OVERLAPS) 82/165 variables, 83/207 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/165 variables, 0/207 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 7 (OVERLAPS) 0/165 variables, 0/207 constraints. Problems are: Problem set: 0 solved, 81 unsolved
No progress, stopping.
After SMT solving in domain Real declared 165/165 variables, and 207 constraints, problems are : Problem set: 0 solved, 81 unsolved in 2193 ms.
Refiners :[Domain max(s): 83/83 constraints, Positive P Invariants (semi-flows): 41/41 constraints, State Equation: 83/83 constraints, PredecessorRefiner: 81/81 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 81 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/82 variables, 82/82 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/82 variables, 0/82 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 2 (OVERLAPS) 1/83 variables, 41/123 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/83 variables, 1/124 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/83 variables, 0/124 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 5 (OVERLAPS) 82/165 variables, 83/207 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/165 variables, 81/288 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/165 variables, 0/288 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 8 (OVERLAPS) 0/165 variables, 0/288 constraints. Problems are: Problem set: 0 solved, 81 unsolved
No progress, stopping.
After SMT solving in domain Int declared 165/165 variables, and 288 constraints, problems are : Problem set: 0 solved, 81 unsolved in 2511 ms.
Refiners :[Domain max(s): 83/83 constraints, Positive P Invariants (semi-flows): 41/41 constraints, State Equation: 83/83 constraints, PredecessorRefiner: 81/81 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 4759ms problems are : Problem set: 0 solved, 81 unsolved
Search for dead transitions found 0 dead transitions in 4769ms
Finished structural reductions in LTL mode , in 1 iterations and 5104 ms. Remains : 83/83 places, 82/82 transitions.
Support contains 46 out of 83 places after structural reductions.
[2025-06-05 05:52:38] [INFO ] Flatten gal took : 28 ms
[2025-06-05 05:52:38] [INFO ] Flatten gal took : 12 ms
[2025-06-05 05:52:38] [INFO ] Input system was already deterministic with 82 transitions.
Support contains 44 out of 83 places (down from 46) after GAL structural reductions.
Reduction of identical properties reduced properties to check from 30 to 25
RANDOM walk for 6422 steps (0 resets) in 166 ms. (38 steps per ms) remains 0/25 properties
FORMULA ShieldRVt-PT-010A-LTLFireability-06 FALSE TECHNIQUES REACHABILITY_KNOWLEDGE
Computed a total of 1 stabilizing places and 1 stable transitions
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202505121319/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X(p0))'
Support contains 1 out of 83 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 83/83 places, 82/82 transitions.
Applied a total of 0 rules in 3 ms. Remains 83 /83 variables (removed 0) and now considering 82/82 (removed 0) transitions.
[2025-06-05 05:52:39] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-05 05:52:39] [INFO ] Implicit Places using invariants in 63 ms returned []
[2025-06-05 05:52:39] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-05 05:52:39] [INFO ] Implicit Places using invariants and state equation in 87 ms returned []
Implicit Place search using SMT with State Equation took 155 ms to find 0 implicit places.
Running 81 sub problems to find dead transitions.
[2025-06-05 05:52:39] [INFO ] Invariant cache hit.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/82 variables, 82/82 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/82 variables, 0/82 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 2 (OVERLAPS) 1/83 variables, 41/123 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/83 variables, 1/124 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/83 variables, 0/124 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 5 (OVERLAPS) 82/165 variables, 83/207 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/165 variables, 0/207 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 7 (OVERLAPS) 0/165 variables, 0/207 constraints. Problems are: Problem set: 0 solved, 81 unsolved
No progress, stopping.
After SMT solving in domain Real declared 165/165 variables, and 207 constraints, problems are : Problem set: 0 solved, 81 unsolved in 2026 ms.
Refiners :[Domain max(s): 83/83 constraints, Positive P Invariants (semi-flows): 41/41 constraints, State Equation: 83/83 constraints, PredecessorRefiner: 81/81 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 81 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/82 variables, 82/82 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/82 variables, 0/82 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 2 (OVERLAPS) 1/83 variables, 41/123 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/83 variables, 1/124 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/83 variables, 0/124 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 5 (OVERLAPS) 82/165 variables, 83/207 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/165 variables, 81/288 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/165 variables, 0/288 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 8 (OVERLAPS) 0/165 variables, 0/288 constraints. Problems are: Problem set: 0 solved, 81 unsolved
No progress, stopping.
After SMT solving in domain Int declared 165/165 variables, and 288 constraints, problems are : Problem set: 0 solved, 81 unsolved in 2418 ms.
Refiners :[Domain max(s): 83/83 constraints, Positive P Invariants (semi-flows): 41/41 constraints, State Equation: 83/83 constraints, PredecessorRefiner: 81/81 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 4474ms problems are : Problem set: 0 solved, 81 unsolved
Search for dead transitions found 0 dead transitions in 4474ms
Finished structural reductions in LTL mode , in 1 iterations and 4633 ms. Remains : 83/83 places, 82/82 transitions.
Stuttering acceptance computed with spot in 193 ms :[(NOT p0), (NOT p0), true]
Running random walk in product with property : ShieldRVt-PT-010A-LTLFireability-00
Entered a terminal (fully accepting) state of product in 1 steps with 0 reset in 2 ms.
FORMULA ShieldRVt-PT-010A-LTLFireability-00 FALSE TECHNIQUES STUTTER_TEST
Treatment of property ShieldRVt-PT-010A-LTLFireability-00 finished in 4885 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202505121319/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X(F((p0||X(X((p0 U X(p1))))))))'
Support contains 6 out of 83 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 83/83 places, 82/82 transitions.
Applied a total of 0 rules in 8 ms. Remains 83 /83 variables (removed 0) and now considering 82/82 (removed 0) transitions.
[2025-06-05 05:52:44] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-05 05:52:44] [INFO ] Implicit Places using invariants in 54 ms returned []
[2025-06-05 05:52:44] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-05 05:52:44] [INFO ] Implicit Places using invariants and state equation in 73 ms returned []
Implicit Place search using SMT with State Equation took 129 ms to find 0 implicit places.
Running 81 sub problems to find dead transitions.
[2025-06-05 05:52:44] [INFO ] Invariant cache hit.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/82 variables, 82/82 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/82 variables, 0/82 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 2 (OVERLAPS) 1/83 variables, 41/123 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/83 variables, 1/124 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/83 variables, 0/124 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 5 (OVERLAPS) 82/165 variables, 83/207 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/165 variables, 0/207 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 7 (OVERLAPS) 0/165 variables, 0/207 constraints. Problems are: Problem set: 0 solved, 81 unsolved
No progress, stopping.
After SMT solving in domain Real declared 165/165 variables, and 207 constraints, problems are : Problem set: 0 solved, 81 unsolved in 1912 ms.
Refiners :[Domain max(s): 83/83 constraints, Positive P Invariants (semi-flows): 41/41 constraints, State Equation: 83/83 constraints, PredecessorRefiner: 81/81 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 81 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/82 variables, 82/82 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/82 variables, 0/82 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 2 (OVERLAPS) 1/83 variables, 41/123 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/83 variables, 1/124 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/83 variables, 0/124 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 5 (OVERLAPS) 82/165 variables, 83/207 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/165 variables, 81/288 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/165 variables, 0/288 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 8 (OVERLAPS) 0/165 variables, 0/288 constraints. Problems are: Problem set: 0 solved, 81 unsolved
No progress, stopping.
After SMT solving in domain Int declared 165/165 variables, and 288 constraints, problems are : Problem set: 0 solved, 81 unsolved in 2299 ms.
Refiners :[Domain max(s): 83/83 constraints, Positive P Invariants (semi-flows): 41/41 constraints, State Equation: 83/83 constraints, PredecessorRefiner: 81/81 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 4223ms problems are : Problem set: 0 solved, 81 unsolved
Search for dead transitions found 0 dead transitions in 4223ms
Finished structural reductions in LTL mode , in 1 iterations and 4362 ms. Remains : 83/83 places, 82/82 transitions.
Stuttering acceptance computed with spot in 183 ms :[(AND (NOT p0) (NOT p1)), (AND (NOT p0) (NOT p1)), (AND (NOT p0) (NOT p1)), (AND (NOT p0) (NOT p1)), (AND (NOT p0) (NOT p1))]
Running random walk in product with property : ShieldRVt-PT-010A-LTLFireability-01
Product exploration explored 100000 steps with 575 reset in 377 ms.
Stack based approach found an accepted trace after 20 steps with 0 reset with depth 21 and stack size 21 in 1 ms.
FORMULA ShieldRVt-PT-010A-LTLFireability-01 FALSE TECHNIQUES STACK_TEST
Treatment of property ShieldRVt-PT-010A-LTLFireability-01 finished in 4950 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202505121319/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(G((p0||((F(p1)&&(p2||(p1 U p3))) U X(X(p4))))))'
Support contains 12 out of 83 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 83/83 places, 82/82 transitions.
Applied a total of 0 rules in 3 ms. Remains 83 /83 variables (removed 0) and now considering 82/82 (removed 0) transitions.
[2025-06-05 05:52:49] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-05 05:52:49] [INFO ] Implicit Places using invariants in 67 ms returned []
[2025-06-05 05:52:49] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-05 05:52:49] [INFO ] Implicit Places using invariants and state equation in 75 ms returned []
Implicit Place search using SMT with State Equation took 143 ms to find 0 implicit places.
Running 81 sub problems to find dead transitions.
[2025-06-05 05:52:49] [INFO ] Invariant cache hit.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/82 variables, 82/82 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/82 variables, 0/82 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 2 (OVERLAPS) 1/83 variables, 41/123 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/83 variables, 1/124 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/83 variables, 0/124 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 5 (OVERLAPS) 82/165 variables, 83/207 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/165 variables, 0/207 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 7 (OVERLAPS) 0/165 variables, 0/207 constraints. Problems are: Problem set: 0 solved, 81 unsolved
No progress, stopping.
After SMT solving in domain Real declared 165/165 variables, and 207 constraints, problems are : Problem set: 0 solved, 81 unsolved in 1860 ms.
Refiners :[Domain max(s): 83/83 constraints, Positive P Invariants (semi-flows): 41/41 constraints, State Equation: 83/83 constraints, PredecessorRefiner: 81/81 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 81 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/82 variables, 82/82 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/82 variables, 0/82 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 2 (OVERLAPS) 1/83 variables, 41/123 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/83 variables, 1/124 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/83 variables, 0/124 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 5 (OVERLAPS) 82/165 variables, 83/207 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/165 variables, 81/288 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/165 variables, 0/288 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 8 (OVERLAPS) 0/165 variables, 0/288 constraints. Problems are: Problem set: 0 solved, 81 unsolved
No progress, stopping.
After SMT solving in domain Int declared 165/165 variables, and 288 constraints, problems are : Problem set: 0 solved, 81 unsolved in 2337 ms.
Refiners :[Domain max(s): 83/83 constraints, Positive P Invariants (semi-flows): 41/41 constraints, State Equation: 83/83 constraints, PredecessorRefiner: 81/81 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 4208ms problems are : Problem set: 0 solved, 81 unsolved
Search for dead transitions found 0 dead transitions in 4209ms
Finished structural reductions in LTL mode , in 1 iterations and 4357 ms. Remains : 83/83 places, 82/82 transitions.
Stuttering acceptance computed with spot in 686 ms :[(AND (NOT p0) (NOT p4)), (NOT p4), (AND (NOT p1) (NOT p4)), (NOT p4), (AND (NOT p3) (NOT p4)), (NOT p4), true, (AND (NOT p1) (NOT p4)), (NOT p4), (AND (NOT p1) (NOT p4)), (NOT p4), (AND (NOT p3) (NOT p4)), (AND (NOT p3) (NOT p4)), (NOT p1), (NOT p3)]
Running random walk in product with property : ShieldRVt-PT-010A-LTLFireability-02
Entered a terminal (fully accepting) state of product in 3315 steps with 1 reset in 12 ms.
FORMULA ShieldRVt-PT-010A-LTLFireability-02 FALSE TECHNIQUES STUTTER_TEST
Treatment of property ShieldRVt-PT-010A-LTLFireability-02 finished in 5103 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202505121319/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!((G(!p0) U (!p1&&X((!p1 U (X((!p2&&X((!p2 U (!p1||G(!p2))))))||G(!p1)))))))'
Support contains 9 out of 83 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 83/83 places, 82/82 transitions.
Applied a total of 0 rules in 8 ms. Remains 83 /83 variables (removed 0) and now considering 82/82 (removed 0) transitions.
[2025-06-05 05:52:54] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-05 05:52:54] [INFO ] Implicit Places using invariants in 61 ms returned []
[2025-06-05 05:52:54] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-05 05:52:54] [INFO ] Implicit Places using invariants and state equation in 74 ms returned []
Implicit Place search using SMT with State Equation took 137 ms to find 0 implicit places.
Running 81 sub problems to find dead transitions.
[2025-06-05 05:52:54] [INFO ] Invariant cache hit.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/82 variables, 82/82 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/82 variables, 0/82 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 2 (OVERLAPS) 1/83 variables, 41/123 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/83 variables, 1/124 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/83 variables, 0/124 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 5 (OVERLAPS) 82/165 variables, 83/207 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/165 variables, 0/207 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 7 (OVERLAPS) 0/165 variables, 0/207 constraints. Problems are: Problem set: 0 solved, 81 unsolved
No progress, stopping.
After SMT solving in domain Real declared 165/165 variables, and 207 constraints, problems are : Problem set: 0 solved, 81 unsolved in 1845 ms.
Refiners :[Domain max(s): 83/83 constraints, Positive P Invariants (semi-flows): 41/41 constraints, State Equation: 83/83 constraints, PredecessorRefiner: 81/81 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 81 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/82 variables, 82/82 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/82 variables, 0/82 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 2 (OVERLAPS) 1/83 variables, 41/123 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/83 variables, 1/124 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/83 variables, 0/124 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 5 (OVERLAPS) 82/165 variables, 83/207 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/165 variables, 81/288 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/165 variables, 0/288 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 8 (OVERLAPS) 0/165 variables, 0/288 constraints. Problems are: Problem set: 0 solved, 81 unsolved
No progress, stopping.
After SMT solving in domain Int declared 165/165 variables, and 288 constraints, problems are : Problem set: 0 solved, 81 unsolved in 2320 ms.
Refiners :[Domain max(s): 83/83 constraints, Positive P Invariants (semi-flows): 41/41 constraints, State Equation: 83/83 constraints, PredecessorRefiner: 81/81 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 4175ms problems are : Problem set: 0 solved, 81 unsolved
Search for dead transitions found 0 dead transitions in 4176ms
Finished structural reductions in LTL mode , in 1 iterations and 4322 ms. Remains : 83/83 places, 82/82 transitions.
Stuttering acceptance computed with spot in 607 ms :[p1, true, p0, (AND p1 p2), (AND p1 p2), p2, (AND p1 p2), (AND p1 p2), (AND p1 p2), (OR (AND p0 p2) (AND p1 p2)), (AND p2 p1), (AND p0 p1 p2), (AND p1 p2), (AND p1 p2)]
Running random walk in product with property : ShieldRVt-PT-010A-LTLFireability-03
Product exploration explored 100000 steps with 21603 reset in 235 ms.
Product exploration explored 100000 steps with 21568 reset in 369 ms.
Computed a total of 1 stabilizing places and 1 stable transitions
Computed a total of 1 stabilizing places and 1 stable transitions
Knowledge obtained : [(AND (NOT p1) (NOT p0) (NOT p2)), (X (NOT (AND p1 p0))), (X (NOT (AND (NOT p1) p0))), (X (NOT (AND p1 (NOT p0)))), (X (NOT p0)), (X (NOT p1)), (X (AND (NOT p1) (NOT p0))), (X (X (NOT p2))), (X (X (NOT (AND (NOT p1) (NOT p0) p2)))), (X (X (NOT (AND (NOT p0) p2)))), (X (X (NOT (AND p1 p0 p2)))), (X (X (NOT (AND p1 (NOT p2))))), (X (X (NOT (AND p1 (NOT p0) p2)))), (X (X (NOT (AND (NOT p1) p0)))), (X (X (NOT (AND (NOT p1) p2)))), (X (X (AND (NOT p1) (NOT p0)))), (X (X (NOT (AND p1 p0)))), (X (X (AND (NOT p1) (NOT p2)))), (X (X (NOT (AND p1 p0 (NOT p2))))), (X (X (NOT (AND (NOT p1) p0 (NOT p2))))), (X (X (NOT (AND p0 (NOT p2))))), (X (X (AND (NOT p1) (NOT p0) (NOT p2)))), (X (X (NOT (AND p1 p2)))), (X (X (NOT (AND p1 (NOT p0) (NOT p2))))), (X (X (NOT (AND (NOT p1) p0 p2)))), (X (X (NOT (AND p0 p2)))), (X (X (NOT (AND p1 (NOT p0))))), (X (X (NOT p0))), (X (X (NOT p1)))]
False Knowledge obtained : []
Knowledge based reduction with 29 factoid took 126 ms. Reduced automaton from 14 states, 53 edges and 3 AP (stutter sensitive) to 14 states, 53 edges and 3 AP (stutter sensitive).
Stuttering acceptance computed with spot in 581 ms :[p1, true, p0, (AND p1 p2), (AND p1 p2), p2, (AND p1 p2), (AND p1 p2), (AND p1 p2), (OR (AND p0 p2) (AND p1 p2)), (AND p2 p1), (AND p0 p1 p2), (AND p1 p2), (AND p1 p2)]
RANDOM walk for 40000 steps (8 resets) in 272 ms. (146 steps per ms) remains 3/22 properties
BEST_FIRST walk for 40004 steps (8 resets) in 188 ms. (211 steps per ms) remains 3/3 properties
BEST_FIRST walk for 40004 steps (8 resets) in 113 ms. (350 steps per ms) remains 3/3 properties
BEST_FIRST walk for 40003 steps (8 resets) in 120 ms. (330 steps per ms) remains 3/3 properties
[2025-06-05 05:53:00] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/9 variables, 9/9 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/9 variables, 0/9 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (OVERLAPS) 8/17 variables, 8/17 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/17 variables, 8/25 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/17 variables, 0/25 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (OVERLAPS) 66/83 variables, 33/58 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/83 variables, 66/124 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/83 variables, 0/124 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 8 (OVERLAPS) 82/165 variables, 83/207 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/165 variables, 0/207 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 10 (OVERLAPS) 0/165 variables, 0/207 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Real declared 165/165 variables, and 207 constraints, problems are : Problem set: 0 solved, 3 unsolved in 82 ms.
Refiners :[Domain max(s): 83/83 constraints, Positive P Invariants (semi-flows): 41/41 constraints, State Equation: 83/83 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 3 unsolved
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/9 variables, 9/9 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/9 variables, 0/9 constraints. Problems are: Problem set: 0 solved, 3 unsolved
Problem apf3 is UNSAT
Problem apf6 is UNSAT
Problem apf17 is UNSAT
After SMT solving in domain Int declared 17/165 variables, and 17 constraints, problems are : Problem set: 3 solved, 0 unsolved in 27 ms.
Refiners :[Domain max(s): 9/83 constraints, Positive P Invariants (semi-flows): 8/41 constraints, State Equation: 0/83 constraints, PredecessorRefiner: 0/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 112ms problems are : Problem set: 3 solved, 0 unsolved
Skipping Parikh replay, no witness traces provided.
Found 3 invariant AP formulas.
Knowledge obtained : [(AND (NOT p1) (NOT p0) (NOT p2)), (X (NOT (AND p1 p0))), (X (NOT (AND (NOT p1) p0))), (X (NOT (AND p1 (NOT p0)))), (X (NOT p0)), (X (NOT p1)), (X (AND (NOT p1) (NOT p0))), (X (X (NOT p2))), (X (X (NOT (AND (NOT p1) (NOT p0) p2)))), (X (X (NOT (AND (NOT p0) p2)))), (X (X (NOT (AND p1 p0 p2)))), (X (X (NOT (AND p1 (NOT p2))))), (X (X (NOT (AND p1 (NOT p0) p2)))), (X (X (NOT (AND (NOT p1) p0)))), (X (X (NOT (AND (NOT p1) p2)))), (X (X (AND (NOT p1) (NOT p0)))), (X (X (NOT (AND p1 p0)))), (X (X (AND (NOT p1) (NOT p2)))), (X (X (NOT (AND p1 p0 (NOT p2))))), (X (X (NOT (AND (NOT p1) p0 (NOT p2))))), (X (X (NOT (AND p0 (NOT p2))))), (X (X (AND (NOT p1) (NOT p0) (NOT p2)))), (X (X (NOT (AND p1 p2)))), (X (X (NOT (AND p1 (NOT p0) (NOT p2))))), (X (X (NOT (AND (NOT p1) p0 p2)))), (X (X (NOT (AND p0 p2)))), (X (X (NOT (AND p1 (NOT p0))))), (X (X (NOT p0))), (X (X (NOT p1))), (G (OR p0 (NOT p1) (NOT p2))), (G (OR (NOT p0) (NOT p1) (NOT p2))), (G (OR (NOT p1) (NOT p2)))]
False Knowledge obtained : [(F (NOT (OR (NOT p0) p1))), (F (NOT (OR p0 (NOT p1) p2))), (F (NOT (OR p1 (NOT p2)))), (F (NOT (OR (NOT p0) p2))), (F (NOT (AND (NOT p0) (NOT p1)))), (F (NOT (OR (NOT p0) p1 (NOT p2)))), (F (NOT (AND (NOT p1) (NOT p2)))), (F (NOT (OR p0 p1 (NOT p2)))), (F (NOT (OR (NOT p1) p2))), (F (NOT (OR (NOT p0) (NOT p2)))), (F p2), (F (NOT (OR (NOT p0) (NOT p1) p2))), (F (NOT (OR p0 (NOT p2)))), (F (NOT (AND (NOT p0) (NOT p1) (NOT p2)))), (F (NOT (OR (NOT p0) (NOT p1)))), (F (NOT (OR p0 (NOT p1)))), (F p1), (F (NOT (OR (NOT p0) p1 p2))), (F p0)]
Property proved to be true thanks to conjunction of knowledge (Minato strategy)
Knowledge based reduction with 32 factoid took 107 ms. Reduced automaton from 14 states, 53 edges and 3 AP (stutter sensitive) to 1 states, 0 edges and 0 AP (stutter insensitive).
FORMULA ShieldRVt-PT-010A-LTLFireability-03 TRUE TECHNIQUES KNOWLEDGE
Treatment of property ShieldRVt-PT-010A-LTLFireability-03 finished in 6744 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202505121319/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(F(G(p0)))'
Support contains 3 out of 83 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 83/83 places, 82/82 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 0 with 2 rules applied. Total rules applied 2 place count 82 transition count 81
Applied a total of 2 rules in 17 ms. Remains 82 /83 variables (removed 1) and now considering 81/82 (removed 1) transitions.
// Phase 1: matrix 81 rows 82 cols
[2025-06-05 05:53:01] [INFO ] Computed 41 invariants in 4 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-05 05:53:01] [INFO ] Implicit Places using invariants in 63 ms returned [75]
Discarding 1 places :
Implicit Place search using SMT only with invariants took 65 ms to find 1 implicit places.
Starting structural reductions in SI_LTL mode, iteration 1 : 81/83 places, 81/82 transitions.
Applied a total of 0 rules in 5 ms. Remains 81 /81 variables (removed 0) and now considering 81/81 (removed 0) transitions.
Finished structural reductions in SI_LTL mode , in 2 iterations and 87 ms. Remains : 81/83 places, 81/82 transitions.
Stuttering acceptance computed with spot in 25 ms :[(NOT p0)]
Running random walk in product with property : ShieldRVt-PT-010A-LTLFireability-04
Product exploration explored 100000 steps with 0 reset in 200 ms.
Stack based approach found an accepted trace after 19 steps with 0 reset with depth 20 and stack size 20 in 0 ms.
FORMULA ShieldRVt-PT-010A-LTLFireability-04 FALSE TECHNIQUES STACK_TEST
Treatment of property ShieldRVt-PT-010A-LTLFireability-04 finished in 324 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202505121319/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!((G(p0)||X((F(p1)&&F(G(p2))))))'
Support contains 7 out of 83 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 83/83 places, 82/82 transitions.
Applied a total of 0 rules in 2 ms. Remains 83 /83 variables (removed 0) and now considering 82/82 (removed 0) transitions.
// Phase 1: matrix 82 rows 83 cols
[2025-06-05 05:53:01] [INFO ] Computed 41 invariants in 1 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-05 05:53:01] [INFO ] Implicit Places using invariants in 54 ms returned []
[2025-06-05 05:53:01] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-05 05:53:01] [INFO ] Implicit Places using invariants and state equation in 68 ms returned []
Implicit Place search using SMT with State Equation took 123 ms to find 0 implicit places.
Running 81 sub problems to find dead transitions.
[2025-06-05 05:53:01] [INFO ] Invariant cache hit.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/82 variables, 82/82 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/82 variables, 0/82 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 2 (OVERLAPS) 1/83 variables, 41/123 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/83 variables, 1/124 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/83 variables, 0/124 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 5 (OVERLAPS) 82/165 variables, 83/207 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/165 variables, 0/207 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 7 (OVERLAPS) 0/165 variables, 0/207 constraints. Problems are: Problem set: 0 solved, 81 unsolved
No progress, stopping.
After SMT solving in domain Real declared 165/165 variables, and 207 constraints, problems are : Problem set: 0 solved, 81 unsolved in 1911 ms.
Refiners :[Domain max(s): 83/83 constraints, Positive P Invariants (semi-flows): 41/41 constraints, State Equation: 83/83 constraints, PredecessorRefiner: 81/81 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 81 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/82 variables, 82/82 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/82 variables, 0/82 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 2 (OVERLAPS) 1/83 variables, 41/123 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/83 variables, 1/124 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/83 variables, 0/124 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 5 (OVERLAPS) 82/165 variables, 83/207 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/165 variables, 81/288 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/165 variables, 0/288 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 8 (OVERLAPS) 0/165 variables, 0/288 constraints. Problems are: Problem set: 0 solved, 81 unsolved
No progress, stopping.
After SMT solving in domain Int declared 165/165 variables, and 288 constraints, problems are : Problem set: 0 solved, 81 unsolved in 2351 ms.
Refiners :[Domain max(s): 83/83 constraints, Positive P Invariants (semi-flows): 41/41 constraints, State Equation: 83/83 constraints, PredecessorRefiner: 81/81 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 4274ms problems are : Problem set: 0 solved, 81 unsolved
Search for dead transitions found 0 dead transitions in 4275ms
Finished structural reductions in LTL mode , in 1 iterations and 4400 ms. Remains : 83/83 places, 82/82 transitions.
Stuttering acceptance computed with spot in 248 ms :[(OR (AND (NOT p0) (NOT p1)) (AND (NOT p0) (NOT p2))), (OR (NOT p1) (NOT p2)), (OR (AND (NOT p0) (NOT p1)) (AND (NOT p0) (NOT p2))), (NOT p1), (NOT p2), (AND (NOT p1) (NOT p0)), (AND (NOT p2) (NOT p0))]
Running random walk in product with property : ShieldRVt-PT-010A-LTLFireability-05
Product exploration explored 100000 steps with 3 reset in 187 ms.
Stack based approach found an accepted trace after 44 steps with 1 reset with depth 27 and stack size 27 in 0 ms.
FORMULA ShieldRVt-PT-010A-LTLFireability-05 FALSE TECHNIQUES STACK_TEST
Treatment of property ShieldRVt-PT-010A-LTLFireability-05 finished in 4860 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202505121319/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(G((p0||X(X(X(F((X((F(!p2)||G(!p3)))&&p1))))))))'
Support contains 5 out of 83 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 83/83 places, 82/82 transitions.
Applied a total of 0 rules in 8 ms. Remains 83 /83 variables (removed 0) and now considering 82/82 (removed 0) transitions.
[2025-06-05 05:53:06] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-05 05:53:06] [INFO ] Implicit Places using invariants in 47 ms returned []
[2025-06-05 05:53:06] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-05 05:53:06] [INFO ] Implicit Places using invariants and state equation in 68 ms returned []
Implicit Place search using SMT with State Equation took 122 ms to find 0 implicit places.
Running 81 sub problems to find dead transitions.
[2025-06-05 05:53:06] [INFO ] Invariant cache hit.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/82 variables, 82/82 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/82 variables, 0/82 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 2 (OVERLAPS) 1/83 variables, 41/123 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/83 variables, 1/124 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/83 variables, 0/124 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 5 (OVERLAPS) 82/165 variables, 83/207 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/165 variables, 0/207 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 7 (OVERLAPS) 0/165 variables, 0/207 constraints. Problems are: Problem set: 0 solved, 81 unsolved
No progress, stopping.
After SMT solving in domain Real declared 165/165 variables, and 207 constraints, problems are : Problem set: 0 solved, 81 unsolved in 1825 ms.
Refiners :[Domain max(s): 83/83 constraints, Positive P Invariants (semi-flows): 41/41 constraints, State Equation: 83/83 constraints, PredecessorRefiner: 81/81 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 81 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/82 variables, 82/82 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/82 variables, 0/82 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 2 (OVERLAPS) 1/83 variables, 41/123 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/83 variables, 1/124 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/83 variables, 0/124 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 5 (OVERLAPS) 82/165 variables, 83/207 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/165 variables, 81/288 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/165 variables, 0/288 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 8 (OVERLAPS) 0/165 variables, 0/288 constraints. Problems are: Problem set: 0 solved, 81 unsolved
No progress, stopping.
After SMT solving in domain Int declared 165/165 variables, and 288 constraints, problems are : Problem set: 0 solved, 81 unsolved in 2297 ms.
Refiners :[Domain max(s): 83/83 constraints, Positive P Invariants (semi-flows): 41/41 constraints, State Equation: 83/83 constraints, PredecessorRefiner: 81/81 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 4150ms problems are : Problem set: 0 solved, 81 unsolved
Search for dead transitions found 0 dead transitions in 4155ms
Finished structural reductions in LTL mode , in 1 iterations and 4285 ms. Remains : 83/83 places, 82/82 transitions.
Stuttering acceptance computed with spot in 254 ms :[(OR (AND (NOT p0) p2 p3) (AND (NOT p0) (NOT p1))), (OR (NOT p1) (AND p2 p3)), (OR (NOT p1) (AND p2 p3)), (OR (NOT p1) (AND p2 p3)), (AND p2 p3), (OR (AND (NOT p1) p2) (AND p2 p3))]
Running random walk in product with property : ShieldRVt-PT-010A-LTLFireability-07
Product exploration explored 100000 steps with 16653 reset in 168 ms.
Product exploration explored 100000 steps with 16714 reset in 183 ms.
Computed a total of 1 stabilizing places and 1 stable transitions
Computed a total of 1 stabilizing places and 1 stable transitions
Knowledge obtained : [(AND (NOT p0) p1 (NOT p2) (NOT p3))]
False Knowledge obtained : []
Knowledge based reduction with 1 factoid took 113 ms. Reduced automaton from 6 states, 11 edges and 4 AP (stutter sensitive) to 6 states, 11 edges and 4 AP (stutter sensitive).
Stuttering acceptance computed with spot in 257 ms :[(OR (AND (NOT p0) p2 p3) (AND (NOT p0) (NOT p1))), (OR (NOT p1) (AND p2 p3)), (OR (NOT p1) (AND p2 p3)), (OR (NOT p1) (AND p2 p3)), (AND p2 p3), (OR (AND (NOT p1) p2) (AND p2 p3))]
Reduction of identical properties reduced properties to check from 9 to 7
RANDOM walk for 40000 steps (8 resets) in 160 ms. (248 steps per ms) remains 1/7 properties
BEST_FIRST walk for 40004 steps (8 resets) in 90 ms. (439 steps per ms) remains 1/1 properties
[2025-06-05 05:53:11] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/5 variables, 5/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/5 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (OVERLAPS) 6/11 variables, 5/10 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/11 variables, 6/16 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/11 variables, 0/16 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 72/83 variables, 36/52 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/83 variables, 72/124 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/83 variables, 0/124 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 82/165 variables, 83/207 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/165 variables, 0/207 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 0/165 variables, 0/207 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 165/165 variables, and 207 constraints, problems are : Problem set: 0 solved, 1 unsolved in 60 ms.
Refiners :[Domain max(s): 83/83 constraints, Positive P Invariants (semi-flows): 41/41 constraints, State Equation: 83/83 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
Problem apf4 is UNSAT
After SMT solving in domain Int declared 5/165 variables, and 5 constraints, problems are : Problem set: 1 solved, 0 unsolved in 14 ms.
Refiners :[Domain max(s): 5/83 constraints, Positive P Invariants (semi-flows): 0/41 constraints, State Equation: 0/83 constraints, PredecessorRefiner: 0/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 78ms problems are : Problem set: 1 solved, 0 unsolved
Skipping Parikh replay, no witness traces provided.
Found 1 invariant AP formulas.
Knowledge obtained : [(AND (NOT p0) p1 (NOT p2) (NOT p3)), (G (OR (NOT p1) (NOT p2) (NOT p3)))]
False Knowledge obtained : [(F (NOT (OR p1 (NOT p2) (NOT p3)))), (F (NOT p1)), (F (NOT (OR (NOT p1) (NOT p2)))), (F (NOT (OR (NOT p2) p3))), (F p3), (F p2), (F (NOT (OR p1 (NOT p2)))), (F p0)]
Knowledge based reduction with 2 factoid took 354 ms. Reduced automaton from 6 states, 11 edges and 4 AP (stutter sensitive) to 6 states, 10 edges and 4 AP (stutter sensitive).
Stuttering acceptance computed with spot in 252 ms :[(OR (AND (NOT p0) p2 p3) (AND (NOT p0) (NOT p1))), (OR (NOT p1) (AND p2 p3)), (OR (NOT p1) (AND p2 p3)), (OR (NOT p1) (AND p2 p3)), (AND p2 p3), (OR (AND (NOT p1) p2) (AND p2 p3))]
Stuttering acceptance computed with spot in 233 ms :[(OR (AND (NOT p0) p2 p3) (AND (NOT p0) (NOT p1))), (OR (NOT p1) (AND p2 p3)), (OR (NOT p1) (AND p2 p3)), (OR (NOT p1) (AND p2 p3)), (AND p2 p3), (OR (AND (NOT p1) p2) (AND p2 p3))]
Support contains 5 out of 83 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 83/83 places, 82/82 transitions.
Applied a total of 0 rules in 5 ms. Remains 83 /83 variables (removed 0) and now considering 82/82 (removed 0) transitions.
[2025-06-05 05:53:12] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-05 05:53:12] [INFO ] Implicit Places using invariants in 49 ms returned []
[2025-06-05 05:53:12] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-05 05:53:12] [INFO ] Implicit Places using invariants and state equation in 65 ms returned []
Implicit Place search using SMT with State Equation took 116 ms to find 0 implicit places.
Running 81 sub problems to find dead transitions.
[2025-06-05 05:53:12] [INFO ] Invariant cache hit.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/82 variables, 82/82 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/82 variables, 0/82 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 2 (OVERLAPS) 1/83 variables, 41/123 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/83 variables, 1/124 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/83 variables, 0/124 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 5 (OVERLAPS) 82/165 variables, 83/207 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/165 variables, 0/207 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 7 (OVERLAPS) 0/165 variables, 0/207 constraints. Problems are: Problem set: 0 solved, 81 unsolved
No progress, stopping.
After SMT solving in domain Real declared 165/165 variables, and 207 constraints, problems are : Problem set: 0 solved, 81 unsolved in 1894 ms.
Refiners :[Domain max(s): 83/83 constraints, Positive P Invariants (semi-flows): 41/41 constraints, State Equation: 83/83 constraints, PredecessorRefiner: 81/81 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 81 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/82 variables, 82/82 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/82 variables, 0/82 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 2 (OVERLAPS) 1/83 variables, 41/123 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/83 variables, 1/124 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/83 variables, 0/124 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 5 (OVERLAPS) 82/165 variables, 83/207 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/165 variables, 81/288 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/165 variables, 0/288 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 8 (OVERLAPS) 0/165 variables, 0/288 constraints. Problems are: Problem set: 0 solved, 81 unsolved
No progress, stopping.
After SMT solving in domain Int declared 165/165 variables, and 288 constraints, problems are : Problem set: 0 solved, 81 unsolved in 2363 ms.
Refiners :[Domain max(s): 83/83 constraints, Positive P Invariants (semi-flows): 41/41 constraints, State Equation: 83/83 constraints, PredecessorRefiner: 81/81 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 4266ms problems are : Problem set: 0 solved, 81 unsolved
Search for dead transitions found 0 dead transitions in 4266ms
Finished structural reductions in LTL mode , in 1 iterations and 4387 ms. Remains : 83/83 places, 82/82 transitions.
Computed a total of 1 stabilizing places and 1 stable transitions
Computed a total of 1 stabilizing places and 1 stable transitions
Knowledge obtained : [(AND (NOT p0) p1 (NOT p2) (NOT p3))]
False Knowledge obtained : []
Knowledge based reduction with 1 factoid took 121 ms. Reduced automaton from 6 states, 10 edges and 4 AP (stutter sensitive) to 6 states, 10 edges and 4 AP (stutter sensitive).
Stuttering acceptance computed with spot in 229 ms :[(OR (AND (NOT p0) p2 p3) (AND (NOT p0) (NOT p1))), (OR (NOT p1) (AND p2 p3)), (OR (NOT p1) (AND p2 p3)), (OR (NOT p1) (AND p2 p3)), (AND p2 p3), (OR (AND (NOT p1) p2) (AND p2 p3))]
Reduction of identical properties reduced properties to check from 8 to 6
RANDOM walk for 4234 steps (0 resets) in 38 ms. (108 steps per ms) remains 0/6 properties
Knowledge obtained : [(AND (NOT p0) p1 (NOT p2) (NOT p3))]
False Knowledge obtained : [(F (NOT (OR (NOT p1) (NOT p2)))), (F (NOT (OR (NOT p2) (NOT p3)))), (F p0), (F (NOT p1)), (F (NOT (OR (NOT p2) p3))), (F p3), (F p2), (F (NOT (OR p1 (NOT p2))))]
Knowledge based reduction with 1 factoid took 310 ms. Reduced automaton from 6 states, 10 edges and 4 AP (stutter sensitive) to 6 states, 10 edges and 4 AP (stutter sensitive).
Stuttering acceptance computed with spot in 249 ms :[(OR (AND (NOT p0) p2 p3) (AND (NOT p0) (NOT p1))), (OR (NOT p1) (AND p2 p3)), (OR (NOT p1) (AND p2 p3)), (OR (NOT p1) (AND p2 p3)), (AND p2 p3), (OR (AND (NOT p1) p2) (AND p2 p3))]
Stuttering acceptance computed with spot in 249 ms :[(OR (AND (NOT p0) p2 p3) (AND (NOT p0) (NOT p1))), (OR (NOT p1) (AND p2 p3)), (OR (NOT p1) (AND p2 p3)), (OR (NOT p1) (AND p2 p3)), (AND p2 p3), (OR (AND (NOT p1) p2) (AND p2 p3))]
Stuttering acceptance computed with spot in 240 ms :[(OR (AND (NOT p0) p2 p3) (AND (NOT p0) (NOT p1))), (OR (NOT p1) (AND p2 p3)), (OR (NOT p1) (AND p2 p3)), (OR (NOT p1) (AND p2 p3)), (AND p2 p3), (OR (AND (NOT p1) p2) (AND p2 p3))]
Product exploration explored 100000 steps with 16684 reset in 164 ms.
Product exploration explored 100000 steps with 16666 reset in 187 ms.
Built C files in :
/tmp/ltsmin6860189956396671510
[2025-06-05 05:53:19] [INFO ] Built C files in 14ms conformant to PINS (ltsmin variant)in folder :/tmp/ltsmin6860189956396671510
Running compilation step : cd /tmp/ltsmin6860189956396671510;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.ltsmin.binaries_1.0.0.202505121319/bin/limit_time.pl' '3' 'gcc' '-c' '-I/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.ltsmin.binaries_1.0.0.202505121319/bin/include/' '-I.' '-std=c99' '-fPIC' '-O0' 'model.c'
Compilation finished in 259 ms.
Running link step : cd /tmp/ltsmin6860189956396671510;'gcc' '-shared' '-o' 'gal.so' 'model.o'
Link finished in 45 ms.
Running LTSmin : cd /tmp/ltsmin6860189956396671510;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.ltsmin.binaries_1.0.0.202505121319/bin/pins2lts-mc-linux64' './gal.so' '--threads=8' '--when' '--hoa' '/tmp/stateBased3422265891998799862.hoa' '--buchi-type=spotba'
WARNING : LTS min runner thread was asked to interrupt. Dying gracefully.
Support contains 5 out of 83 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 83/83 places, 82/82 transitions.
Applied a total of 0 rules in 3 ms. Remains 83 /83 variables (removed 0) and now considering 82/82 (removed 0) transitions.
[2025-06-05 05:53:34] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-05 05:53:34] [INFO ] Implicit Places using invariants in 57 ms returned []
[2025-06-05 05:53:34] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-05 05:53:34] [INFO ] Implicit Places using invariants and state equation in 70 ms returned []
Implicit Place search using SMT with State Equation took 128 ms to find 0 implicit places.
Running 81 sub problems to find dead transitions.
[2025-06-05 05:53:34] [INFO ] Invariant cache hit.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/82 variables, 82/82 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/82 variables, 0/82 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 2 (OVERLAPS) 1/83 variables, 41/123 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/83 variables, 1/124 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/83 variables, 0/124 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 5 (OVERLAPS) 82/165 variables, 83/207 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/165 variables, 0/207 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 7 (OVERLAPS) 0/165 variables, 0/207 constraints. Problems are: Problem set: 0 solved, 81 unsolved
No progress, stopping.
After SMT solving in domain Real declared 165/165 variables, and 207 constraints, problems are : Problem set: 0 solved, 81 unsolved in 1894 ms.
Refiners :[Domain max(s): 83/83 constraints, Positive P Invariants (semi-flows): 41/41 constraints, State Equation: 83/83 constraints, PredecessorRefiner: 81/81 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 81 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/82 variables, 82/82 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/82 variables, 0/82 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 2 (OVERLAPS) 1/83 variables, 41/123 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/83 variables, 1/124 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/83 variables, 0/124 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 5 (OVERLAPS) 82/165 variables, 83/207 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/165 variables, 81/288 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/165 variables, 0/288 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 8 (OVERLAPS) 0/165 variables, 0/288 constraints. Problems are: Problem set: 0 solved, 81 unsolved
No progress, stopping.
After SMT solving in domain Int declared 165/165 variables, and 288 constraints, problems are : Problem set: 0 solved, 81 unsolved in 2333 ms.
Refiners :[Domain max(s): 83/83 constraints, Positive P Invariants (semi-flows): 41/41 constraints, State Equation: 83/83 constraints, PredecessorRefiner: 81/81 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 4238ms problems are : Problem set: 0 solved, 81 unsolved
Search for dead transitions found 0 dead transitions in 4239ms
Finished structural reductions in LTL mode , in 1 iterations and 4370 ms. Remains : 83/83 places, 82/82 transitions.
Built C files in :
/tmp/ltsmin3298170990291666014
[2025-06-05 05:53:38] [INFO ] Built C files in 5ms conformant to PINS (ltsmin variant)in folder :/tmp/ltsmin3298170990291666014
Running compilation step : cd /tmp/ltsmin3298170990291666014;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.ltsmin.binaries_1.0.0.202505121319/bin/limit_time.pl' '3' 'gcc' '-c' '-I/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.ltsmin.binaries_1.0.0.202505121319/bin/include/' '-I.' '-std=c99' '-fPIC' '-O0' 'model.c'
Compilation finished in 163 ms.
Running link step : cd /tmp/ltsmin3298170990291666014;'gcc' '-shared' '-o' 'gal.so' 'model.o'
Link finished in 33 ms.
Running LTSmin : cd /tmp/ltsmin3298170990291666014;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.ltsmin.binaries_1.0.0.202505121319/bin/pins2lts-mc-linux64' './gal.so' '--threads=8' '--when' '--hoa' '/tmp/stateBased1286657381258661739.hoa' '--buchi-type=spotba'
WARNING : LTS min runner thread was asked to interrupt. Dying gracefully.
[2025-06-05 05:53:53] [INFO ] Flatten gal took : 8 ms
[2025-06-05 05:53:53] [INFO ] Flatten gal took : 7 ms
[2025-06-05 05:53:53] [INFO ] Time to serialize gal into /tmp/LTL2161755131223794778.gal : 10 ms
[2025-06-05 05:53:53] [INFO ] Time to serialize properties into /tmp/LTL4790345676395697295.prop : 1 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-ltl-linux64' '--gc-threshold' '2000000' '-i' '/tmp/LTL2161755131223794778.gal' '-t' 'CGAL' '-hoa' '/tmp/aut16772039900964897097.hoa' '-atoms' '/tmp/LTL4790345676395697295.prop' '-c' '-stutter-deadlock' '--gen-order' 'FOLLOW'

its-ltl command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-ltl-linux64 --gc-threshold 2000000 -i /tmp/L...318
Loading property file /tmp/LTL4790345676395697295.prop.
Loaded 4 atomic propositions.
Checking formula 0 provided in automaton : /tmp/aut16772039900964897097.hoa
Reverse transition relation is exact ! Faster fixpoint algorithm enabled.
6 unique states visited
6 strongly connected components in search stack
7 transitions explored
6 items max in DFS search stack
9 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,0,0.122384,19616,1,0,29,19849,31,7,2409,22747,86
an accepting run exists (use option '-e' to print it)
Formula 0 is FALSE accepting run found.
FORMULA ShieldRVt-PT-010A-LTLFireability-07 FALSE TECHNIQUES KNOWLEDGE HOA DECISION_DIAGRAMS TOPOLOGICAL
Treatment of property ShieldRVt-PT-010A-LTLFireability-07 finished in 47653 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202505121319/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(F(p0))'
Support contains 3 out of 83 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 83/83 places, 82/82 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 0 with 2 rules applied. Total rules applied 2 place count 82 transition count 81
Applied a total of 2 rules in 5 ms. Remains 82 /83 variables (removed 1) and now considering 81/82 (removed 1) transitions.
// Phase 1: matrix 81 rows 82 cols
[2025-06-05 05:53:53] [INFO ] Computed 41 invariants in 0 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-05 05:53:53] [INFO ] Implicit Places using invariants in 48 ms returned [75]
Discarding 1 places :
Implicit Place search using SMT only with invariants took 48 ms to find 1 implicit places.
Starting structural reductions in SI_LTL mode, iteration 1 : 81/83 places, 81/82 transitions.
Applied a total of 0 rules in 3 ms. Remains 81 /81 variables (removed 0) and now considering 81/81 (removed 0) transitions.
Finished structural reductions in SI_LTL mode , in 2 iterations and 57 ms. Remains : 81/83 places, 81/82 transitions.
Stuttering acceptance computed with spot in 29 ms :[(NOT p0)]
Running random walk in product with property : ShieldRVt-PT-010A-LTLFireability-08
Product exploration explored 100000 steps with 5372 reset in 149 ms.
Stack based approach found an accepted trace after 5 steps with 0 reset with depth 6 and stack size 6 in 0 ms.
FORMULA ShieldRVt-PT-010A-LTLFireability-08 FALSE TECHNIQUES STACK_TEST
Treatment of property ShieldRVt-PT-010A-LTLFireability-08 finished in 245 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202505121319/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!((X((G(p1)&&p0))&&F((F(p3)&&p2))))'
Support contains 8 out of 83 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 83/83 places, 82/82 transitions.
Applied a total of 0 rules in 2 ms. Remains 83 /83 variables (removed 0) and now considering 82/82 (removed 0) transitions.
// Phase 1: matrix 82 rows 83 cols
[2025-06-05 05:53:54] [INFO ] Computed 41 invariants in 0 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-05 05:53:54] [INFO ] Implicit Places using invariants in 57 ms returned []
[2025-06-05 05:53:54] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-05 05:53:54] [INFO ] Implicit Places using invariants and state equation in 62 ms returned []
Implicit Place search using SMT with State Equation took 138 ms to find 0 implicit places.
Running 81 sub problems to find dead transitions.
[2025-06-05 05:53:54] [INFO ] Invariant cache hit.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/82 variables, 82/82 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/82 variables, 0/82 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 2 (OVERLAPS) 1/83 variables, 41/123 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/83 variables, 1/124 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/83 variables, 0/124 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 5 (OVERLAPS) 82/165 variables, 83/207 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/165 variables, 0/207 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 7 (OVERLAPS) 0/165 variables, 0/207 constraints. Problems are: Problem set: 0 solved, 81 unsolved
No progress, stopping.
After SMT solving in domain Real declared 165/165 variables, and 207 constraints, problems are : Problem set: 0 solved, 81 unsolved in 1844 ms.
Refiners :[Domain max(s): 83/83 constraints, Positive P Invariants (semi-flows): 41/41 constraints, State Equation: 83/83 constraints, PredecessorRefiner: 81/81 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 81 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/82 variables, 82/82 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/82 variables, 0/82 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 2 (OVERLAPS) 1/83 variables, 41/123 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/83 variables, 1/124 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/83 variables, 0/124 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 5 (OVERLAPS) 82/165 variables, 83/207 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/165 variables, 81/288 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/165 variables, 0/288 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 8 (OVERLAPS) 0/165 variables, 0/288 constraints. Problems are: Problem set: 0 solved, 81 unsolved
No progress, stopping.
After SMT solving in domain Int declared 165/165 variables, and 288 constraints, problems are : Problem set: 0 solved, 81 unsolved in 2370 ms.
Refiners :[Domain max(s): 83/83 constraints, Positive P Invariants (semi-flows): 41/41 constraints, State Equation: 83/83 constraints, PredecessorRefiner: 81/81 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 4222ms problems are : Problem set: 0 solved, 81 unsolved
Search for dead transitions found 0 dead transitions in 4222ms
Finished structural reductions in LTL mode , in 1 iterations and 4362 ms. Remains : 83/83 places, 82/82 transitions.
Stuttering acceptance computed with spot in 205 ms :[(OR (NOT p1) (NOT p2) (NOT p0) (NOT p3)), (OR (NOT p0) (NOT p1)), (OR (NOT p2) (NOT p3)), (NOT p3), true, (NOT p1)]
Running random walk in product with property : ShieldRVt-PT-010A-LTLFireability-09
Entered a terminal (fully accepting) state of product in 1 steps with 0 reset in 0 ms.
FORMULA ShieldRVt-PT-010A-LTLFireability-09 FALSE TECHNIQUES STUTTER_TEST
Treatment of property ShieldRVt-PT-010A-LTLFireability-09 finished in 4591 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202505121319/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!((G((G(p1)||p0))&&F(p2)))'
Support contains 4 out of 83 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 83/83 places, 82/82 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 0 with 2 rules applied. Total rules applied 2 place count 82 transition count 81
Applied a total of 2 rules in 7 ms. Remains 82 /83 variables (removed 1) and now considering 81/82 (removed 1) transitions.
// Phase 1: matrix 81 rows 82 cols
[2025-06-05 05:53:58] [INFO ] Computed 41 invariants in 1 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-05 05:53:58] [INFO ] Implicit Places using invariants in 49 ms returned [75]
Discarding 1 places :
Implicit Place search using SMT only with invariants took 50 ms to find 1 implicit places.
Starting structural reductions in SI_LTL mode, iteration 1 : 81/83 places, 81/82 transitions.
Applied a total of 0 rules in 3 ms. Remains 81 /81 variables (removed 0) and now considering 81/81 (removed 0) transitions.
Finished structural reductions in SI_LTL mode , in 2 iterations and 61 ms. Remains : 81/83 places, 81/82 transitions.
Stuttering acceptance computed with spot in 130 ms :[true, (OR (NOT p1) (NOT p2)), (NOT p1), (AND (NOT p1) (NOT p0)), (OR (NOT p2) (AND (NOT p0) (NOT p1)))]
Running random walk in product with property : ShieldRVt-PT-010A-LTLFireability-10
Entered a terminal (fully accepting) state of product in 2608 steps with 0 reset in 4 ms.
FORMULA ShieldRVt-PT-010A-LTLFireability-10 FALSE TECHNIQUES STUTTER_TEST
Treatment of property ShieldRVt-PT-010A-LTLFireability-10 finished in 207 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202505121319/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X(F((G(p0)&&(p1||G(F(p2)))))))'
Support contains 4 out of 83 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 83/83 places, 82/82 transitions.
Applied a total of 0 rules in 0 ms. Remains 83 /83 variables (removed 0) and now considering 82/82 (removed 0) transitions.
// Phase 1: matrix 82 rows 83 cols
[2025-06-05 05:53:58] [INFO ] Computed 41 invariants in 1 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-05 05:53:58] [INFO ] Implicit Places using invariants in 49 ms returned []
[2025-06-05 05:53:58] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-05 05:53:59] [INFO ] Implicit Places using invariants and state equation in 65 ms returned []
Implicit Place search using SMT with State Equation took 116 ms to find 0 implicit places.
Running 81 sub problems to find dead transitions.
[2025-06-05 05:53:59] [INFO ] Invariant cache hit.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/82 variables, 82/82 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/82 variables, 0/82 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 2 (OVERLAPS) 1/83 variables, 41/123 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/83 variables, 1/124 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/83 variables, 0/124 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 5 (OVERLAPS) 82/165 variables, 83/207 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/165 variables, 0/207 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 7 (OVERLAPS) 0/165 variables, 0/207 constraints. Problems are: Problem set: 0 solved, 81 unsolved
No progress, stopping.
After SMT solving in domain Real declared 165/165 variables, and 207 constraints, problems are : Problem set: 0 solved, 81 unsolved in 1896 ms.
Refiners :[Domain max(s): 83/83 constraints, Positive P Invariants (semi-flows): 41/41 constraints, State Equation: 83/83 constraints, PredecessorRefiner: 81/81 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 81 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/82 variables, 82/82 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/82 variables, 0/82 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 2 (OVERLAPS) 1/83 variables, 41/123 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/83 variables, 1/124 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/83 variables, 0/124 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 5 (OVERLAPS) 82/165 variables, 83/207 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/165 variables, 81/288 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/165 variables, 0/288 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 8 (OVERLAPS) 0/165 variables, 0/288 constraints. Problems are: Problem set: 0 solved, 81 unsolved
No progress, stopping.
After SMT solving in domain Int declared 165/165 variables, and 288 constraints, problems are : Problem set: 0 solved, 81 unsolved in 2374 ms.
Refiners :[Domain max(s): 83/83 constraints, Positive P Invariants (semi-flows): 41/41 constraints, State Equation: 83/83 constraints, PredecessorRefiner: 81/81 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 4279ms problems are : Problem set: 0 solved, 81 unsolved
Search for dead transitions found 0 dead transitions in 4279ms
Finished structural reductions in LTL mode , in 1 iterations and 4395 ms. Remains : 83/83 places, 82/82 transitions.
Stuttering acceptance computed with spot in 270 ms :[(OR (NOT p0) (AND (NOT p1) (NOT p2))), (OR (NOT p0) (AND (NOT p1) (NOT p2))), (NOT p0), (OR (AND (NOT p0) (NOT p2)) (AND (NOT p1) (NOT p2))), (OR (AND (NOT p0) (NOT p2)) (AND (NOT p1) (NOT p2))), (AND (NOT p0) (NOT p2)), (AND (NOT p0) (NOT p2))]
Running random walk in product with property : ShieldRVt-PT-010A-LTLFireability-11
Product exploration explored 100000 steps with 37 reset in 201 ms.
Stack based approach found an accepted trace after 2672 steps with 0 reset with depth 2673 and stack size 1020 in 6 ms.
FORMULA ShieldRVt-PT-010A-LTLFireability-11 FALSE TECHNIQUES STACK_TEST
Treatment of property ShieldRVt-PT-010A-LTLFireability-11 finished in 4894 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202505121319/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(F(p0))'
Support contains 1 out of 83 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 83/83 places, 82/82 transitions.
Reduce places removed 1 places and 1 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 2 places and 0 transitions.
Iterating global reduction 0 with 3 rules applied. Total rules applied 3 place count 80 transition count 80
Applied a total of 3 rules in 7 ms. Remains 80 /83 variables (removed 3) and now considering 80/82 (removed 2) transitions.
// Phase 1: matrix 80 rows 80 cols
[2025-06-05 05:54:03] [INFO ] Computed 40 invariants in 1 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-05 05:54:03] [INFO ] Implicit Places using invariants in 42 ms returned []
[2025-06-05 05:54:03] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-05 05:54:03] [INFO ] Implicit Places using invariants and state equation in 63 ms returned []
Implicit Place search using SMT with State Equation took 106 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-05 05:54:03] [INFO ] Redundant transitions in 1 ms returned []
Running 79 sub problems to find dead transitions.
[2025-06-05 05:54:03] [INFO ] Invariant cache hit.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/80 variables, 80/80 constraints. Problems are: Problem set: 0 solved, 79 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/80 variables, 40/120 constraints. Problems are: Problem set: 0 solved, 79 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/80 variables, 0/120 constraints. Problems are: Problem set: 0 solved, 79 unsolved
At refinement iteration 3 (OVERLAPS) 80/160 variables, 80/200 constraints. Problems are: Problem set: 0 solved, 79 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/160 variables, 0/200 constraints. Problems are: Problem set: 0 solved, 79 unsolved
At refinement iteration 5 (OVERLAPS) 0/160 variables, 0/200 constraints. Problems are: Problem set: 0 solved, 79 unsolved
No progress, stopping.
After SMT solving in domain Real declared 160/160 variables, and 200 constraints, problems are : Problem set: 0 solved, 79 unsolved in 1276 ms.
Refiners :[Domain max(s): 80/80 constraints, Positive P Invariants (semi-flows): 40/40 constraints, State Equation: 80/80 constraints, PredecessorRefiner: 79/79 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 79 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/80 variables, 80/80 constraints. Problems are: Problem set: 0 solved, 79 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/80 variables, 40/120 constraints. Problems are: Problem set: 0 solved, 79 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/80 variables, 0/120 constraints. Problems are: Problem set: 0 solved, 79 unsolved
At refinement iteration 3 (OVERLAPS) 80/160 variables, 80/200 constraints. Problems are: Problem set: 0 solved, 79 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/160 variables, 79/279 constraints. Problems are: Problem set: 0 solved, 79 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/160 variables, 0/279 constraints. Problems are: Problem set: 0 solved, 79 unsolved
At refinement iteration 6 (OVERLAPS) 0/160 variables, 0/279 constraints. Problems are: Problem set: 0 solved, 79 unsolved
No progress, stopping.
After SMT solving in domain Int declared 160/160 variables, and 279 constraints, problems are : Problem set: 0 solved, 79 unsolved in 1586 ms.
Refiners :[Domain max(s): 80/80 constraints, Positive P Invariants (semi-flows): 40/40 constraints, State Equation: 80/80 constraints, PredecessorRefiner: 79/79 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 2869ms problems are : Problem set: 0 solved, 79 unsolved
Search for dead transitions found 0 dead transitions in 2869ms
Starting structural reductions in SI_LTL mode, iteration 1 : 80/83 places, 80/82 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 2987 ms. Remains : 80/83 places, 80/82 transitions.
Stuttering acceptance computed with spot in 41 ms :[(NOT p0)]
Running random walk in product with property : ShieldRVt-PT-010A-LTLFireability-12
Product exploration explored 100000 steps with 50000 reset in 117 ms.
Product exploration explored 100000 steps with 50000 reset in 123 ms.
Computed a total of 0 stabilizing places and 0 stable transitions
Computed a total of 0 stabilizing places and 0 stable transitions
Knowledge obtained : [(NOT p0), (X p0)]
False Knowledge obtained : [(X (X (NOT p0))), (X (X p0))]
Property proved to be true thanks to knowledge (Minato strategy)
Knowledge based reduction with 2 factoid took 17 ms. Reduced automaton from 1 states, 1 edges and 1 AP (stutter insensitive) to 1 states, 0 edges and 0 AP (stutter insensitive).
FORMULA ShieldRVt-PT-010A-LTLFireability-12 TRUE TECHNIQUES KNOWLEDGE
Treatment of property ShieldRVt-PT-010A-LTLFireability-12 finished in 3301 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202505121319/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(F(p0))'
Support contains 3 out of 83 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 83/83 places, 82/82 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 0 with 2 rules applied. Total rules applied 2 place count 82 transition count 81
Applied a total of 2 rules in 9 ms. Remains 82 /83 variables (removed 1) and now considering 81/82 (removed 1) transitions.
// Phase 1: matrix 81 rows 82 cols
[2025-06-05 05:54:07] [INFO ] Computed 41 invariants in 1 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-05 05:54:07] [INFO ] Implicit Places using invariants in 50 ms returned [75]
Discarding 1 places :
Implicit Place search using SMT only with invariants took 51 ms to find 1 implicit places.
Starting structural reductions in SI_LTL mode, iteration 1 : 81/83 places, 81/82 transitions.
Applied a total of 0 rules in 3 ms. Remains 81 /81 variables (removed 0) and now considering 81/81 (removed 0) transitions.
Finished structural reductions in SI_LTL mode , in 2 iterations and 63 ms. Remains : 81/83 places, 81/82 transitions.
Stuttering acceptance computed with spot in 26 ms :[(NOT p0)]
Running random walk in product with property : ShieldRVt-PT-010A-LTLFireability-13
Product exploration explored 100000 steps with 131 reset in 176 ms.
Stack based approach found an accepted trace after 3 steps with 0 reset with depth 4 and stack size 4 in 0 ms.
FORMULA ShieldRVt-PT-010A-LTLFireability-13 FALSE TECHNIQUES STACK_TEST
Treatment of property ShieldRVt-PT-010A-LTLFireability-13 finished in 278 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202505121319/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(G(F(p0)))'
Support contains 1 out of 83 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 83/83 places, 82/82 transitions.
Reduce places removed 1 places and 1 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 2 places and 0 transitions.
Iterating global reduction 0 with 3 rules applied. Total rules applied 3 place count 80 transition count 80
Applied a total of 3 rules in 5 ms. Remains 80 /83 variables (removed 3) and now considering 80/82 (removed 2) transitions.
// Phase 1: matrix 80 rows 80 cols
[2025-06-05 05:54:07] [INFO ] Computed 40 invariants in 0 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-05 05:54:07] [INFO ] Implicit Places using invariants in 43 ms returned []
[2025-06-05 05:54:07] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-05 05:54:07] [INFO ] Implicit Places using invariants and state equation in 64 ms returned []
Implicit Place search using SMT with State Equation took 109 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-05 05:54:07] [INFO ] Redundant transitions in 1 ms returned []
Running 79 sub problems to find dead transitions.
[2025-06-05 05:54:07] [INFO ] Invariant cache hit.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/80 variables, 80/80 constraints. Problems are: Problem set: 0 solved, 79 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/80 variables, 40/120 constraints. Problems are: Problem set: 0 solved, 79 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/80 variables, 0/120 constraints. Problems are: Problem set: 0 solved, 79 unsolved
At refinement iteration 3 (OVERLAPS) 80/160 variables, 80/200 constraints. Problems are: Problem set: 0 solved, 79 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/160 variables, 0/200 constraints. Problems are: Problem set: 0 solved, 79 unsolved
At refinement iteration 5 (OVERLAPS) 0/160 variables, 0/200 constraints. Problems are: Problem set: 0 solved, 79 unsolved
No progress, stopping.
After SMT solving in domain Real declared 160/160 variables, and 200 constraints, problems are : Problem set: 0 solved, 79 unsolved in 1265 ms.
Refiners :[Domain max(s): 80/80 constraints, Positive P Invariants (semi-flows): 40/40 constraints, State Equation: 80/80 constraints, PredecessorRefiner: 79/79 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 79 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/80 variables, 80/80 constraints. Problems are: Problem set: 0 solved, 79 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/80 variables, 40/120 constraints. Problems are: Problem set: 0 solved, 79 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/80 variables, 0/120 constraints. Problems are: Problem set: 0 solved, 79 unsolved
At refinement iteration 3 (OVERLAPS) 80/160 variables, 80/200 constraints. Problems are: Problem set: 0 solved, 79 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/160 variables, 79/279 constraints. Problems are: Problem set: 0 solved, 79 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/160 variables, 0/279 constraints. Problems are: Problem set: 0 solved, 79 unsolved
At refinement iteration 6 (OVERLAPS) 0/160 variables, 0/279 constraints. Problems are: Problem set: 0 solved, 79 unsolved
No progress, stopping.
After SMT solving in domain Int declared 160/160 variables, and 279 constraints, problems are : Problem set: 0 solved, 79 unsolved in 1536 ms.
Refiners :[Domain max(s): 80/80 constraints, Positive P Invariants (semi-flows): 40/40 constraints, State Equation: 80/80 constraints, PredecessorRefiner: 79/79 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 2807ms problems are : Problem set: 0 solved, 79 unsolved
Search for dead transitions found 0 dead transitions in 2808ms
Starting structural reductions in SI_LTL mode, iteration 1 : 80/83 places, 80/82 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 2926 ms. Remains : 80/83 places, 80/82 transitions.
Stuttering acceptance computed with spot in 68 ms :[(NOT p0), (NOT p0)]
Running random walk in product with property : ShieldRVt-PT-010A-LTLFireability-14
Product exploration explored 100000 steps with 2663 reset in 155 ms.
Stack based approach found an accepted trace after 15 steps with 1 reset with depth 6 and stack size 6 in 0 ms.
FORMULA ShieldRVt-PT-010A-LTLFireability-14 FALSE TECHNIQUES STACK_TEST
Treatment of property ShieldRVt-PT-010A-LTLFireability-14 finished in 3166 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202505121319/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X(X(X(X(X(X(X((X(G(p0)) U p1)))))))))'
Support contains 5 out of 83 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 83/83 places, 82/82 transitions.
Applied a total of 0 rules in 1 ms. Remains 83 /83 variables (removed 0) and now considering 82/82 (removed 0) transitions.
// Phase 1: matrix 82 rows 83 cols
[2025-06-05 05:54:10] [INFO ] Computed 41 invariants in 1 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-05 05:54:10] [INFO ] Implicit Places using invariants in 47 ms returned []
[2025-06-05 05:54:10] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-05 05:54:10] [INFO ] Implicit Places using invariants and state equation in 63 ms returned []
Implicit Place search using SMT with State Equation took 110 ms to find 0 implicit places.
Running 81 sub problems to find dead transitions.
[2025-06-05 05:54:10] [INFO ] Invariant cache hit.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/82 variables, 82/82 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/82 variables, 0/82 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 2 (OVERLAPS) 1/83 variables, 41/123 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/83 variables, 1/124 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/83 variables, 0/124 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 5 (OVERLAPS) 82/165 variables, 83/207 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/165 variables, 0/207 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 7 (OVERLAPS) 0/165 variables, 0/207 constraints. Problems are: Problem set: 0 solved, 81 unsolved
No progress, stopping.
After SMT solving in domain Real declared 165/165 variables, and 207 constraints, problems are : Problem set: 0 solved, 81 unsolved in 1863 ms.
Refiners :[Domain max(s): 83/83 constraints, Positive P Invariants (semi-flows): 41/41 constraints, State Equation: 83/83 constraints, PredecessorRefiner: 81/81 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 81 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/82 variables, 82/82 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/82 variables, 0/82 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 2 (OVERLAPS) 1/83 variables, 41/123 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/83 variables, 1/124 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/83 variables, 0/124 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 5 (OVERLAPS) 82/165 variables, 83/207 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/165 variables, 81/288 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/165 variables, 0/288 constraints. Problems are: Problem set: 0 solved, 81 unsolved
At refinement iteration 8 (OVERLAPS) 0/165 variables, 0/288 constraints. Problems are: Problem set: 0 solved, 81 unsolved
No progress, stopping.
After SMT solving in domain Int declared 165/165 variables, and 288 constraints, problems are : Problem set: 0 solved, 81 unsolved in 2279 ms.
Refiners :[Domain max(s): 83/83 constraints, Positive P Invariants (semi-flows): 41/41 constraints, State Equation: 83/83 constraints, PredecessorRefiner: 81/81 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 4149ms problems are : Problem set: 0 solved, 81 unsolved
Search for dead transitions found 0 dead transitions in 4149ms
Finished structural reductions in LTL mode , in 1 iterations and 4261 ms. Remains : 83/83 places, 82/82 transitions.
Stuttering acceptance computed with spot in 370 ms :[(NOT p0), (NOT p1), (NOT p1), (NOT p1), (NOT p1), (NOT p1), (NOT p1), (NOT p1), true, (NOT p1), (OR (NOT p0) (NOT p1))]
Running random walk in product with property : ShieldRVt-PT-010A-LTLFireability-15
Entered a terminal (fully accepting) state of product in 8 steps with 0 reset in 0 ms.
FORMULA ShieldRVt-PT-010A-LTLFireability-15 FALSE TECHNIQUES STUTTER_TEST
Treatment of property ShieldRVt-PT-010A-LTLFireability-15 finished in 4651 ms.
All properties solved by simple procedures.
Total runtime 102175 ms.

BK_STOP 1749102855261

--------------------
content from stderr:

+ export BINDIR=/home/mcc/BenchKit/bin//../itstools/bin//../
+ BINDIR=/home/mcc/BenchKit/bin//../itstools/bin//../
++ pwd
+ export MODEL=/home/mcc/execution
+ MODEL=/home/mcc/execution
+ [[ LTLFireability = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution LTLFireability -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600
+ ulimit -s 65536
+ [[ -z '' ]]
+ export LTSMIN_MEM_SIZE=8589934592
+ LTSMIN_MEM_SIZE=8589934592
++ sed s/.jar//
++ perl -pe 's/.*\.//g'
++ ls /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202505121319.jar
+ VERSION=202505121319
+ echo 'Running Version 202505121319'
+ /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/its-tools -pnfolder /home/mcc/execution -examination LTLFireability -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600

Sequence of Actions to be Executed by the VM

This is useful if one wants to reexecute the tool in the VM from the submitted image disk.

set -x
# this is for BenchKit: configuration of major elements for the test
export BK_INPUT="ShieldRVt-PT-010A"
export BK_EXAMINATION="LTLFireability"
export BK_TOOL="itstools"
export BK_RESULT_DIR="/tmp/BK_RESULTS/OUTPUTS"
export BK_TIME_CONFINEMENT="3600"
export BK_MEMORY_CONFINEMENT="16384"
export BK_BIN_PATH="/home/mcc/BenchKit/bin/"

# this is specific to your benchmark or test

export BIN_DIR="$HOME/BenchKit/bin"

# remove the execution directoty if it exists (to avoid increse of .vmdk images)
if [ -d execution ] ; then
rm -rf execution
fi

# this is for BenchKit: explicit launching of the test
echo "====================================================================="
echo " Generated by BenchKit 2-5832"
echo " Executing tool itstools"
echo " Input is ShieldRVt-PT-010A, examination is LTLFireability"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r212-tall-174901994000260"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/ShieldRVt-PT-010A.tgz
mv ShieldRVt-PT-010A execution
cd execution
if [ "LTLFireability" = "ReachabilityDeadlock" ] || [ "LTLFireability" = "UpperBounds" ] || [ "LTLFireability" = "QuasiLiveness" ] || [ "LTLFireability" = "StableMarking" ] || [ "LTLFireability" = "Liveness" ] || [ "LTLFireability" = "OneSafe" ] || [ "LTLFireability" = "StateSpace" ]; then
rm -f GenericPropertiesVerdict.xml
fi
pwd
ls -lh

echo
echo "--------------------"
echo "content from stdout:"
echo
echo "=== Data for post analysis generated by BenchKit (invocation template)"
echo
if [ "LTLFireability" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "LTLFireability" != "StateSpace" ] ; then
echo "The expected result is a vector of booleans"
echo BOOL_VECTOR
else
echo "no data necessary for post analysis"
fi
echo
if [ -f "LTLFireability.xml" ] ; then # for cunf (txt files deleted;-)
echo echo "here is the order used to build the result vector(from xml file)"
for x in $(grep '' LTLFireability.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "LTLFireability" = "ReachabilityDeadlock" ] || [ "LTLFireability" = "QuasiLiveness" ] || [ "LTLFireability" = "StableMarking" ] || [ "LTLFireability" = "Liveness" ] || [ "LTLFireability" = "OneSafe" ] ; then
echo "FORMULA_NAME LTLFireability"
fi
echo
echo "=== Now, execution of the tool begins"
echo
echo -n "BK_START "
date -u +%s%3N
echo
timeout -s 9 $BK_TIME_CONFINEMENT bash -c "/home/mcc/BenchKit/BenchKit_head.sh 2> STDERR ; echo ; echo -n \"BK_STOP \" ; date -u +%s%3N"
if [ $? -eq 137 ] ; then
echo
echo "BK_TIME_CONFINEMENT_REACHED"
fi
echo
echo "--------------------"
echo "content from stderr:"
echo
cat STDERR ;