fond
Model Checking Contest 2024
14th edition, Geneva, Switzerland, June 25, 2024
Execution of r492-smll-171636266700356
Last Updated
July 7, 2024

About the Execution of LTSMin+red for FMS-PT-05000

Execution Summary
Max Memory
Used (MB)
Time wait (ms) CPU Usage (ms) I/O Wait (ms) Computed Result Execution
Status
406.067 14023.00 26422.00 149.60 FFFFTFFFFFFFTFTF normal

Execution Chart

We display below the execution chart for this examination (boot time has been removed).

Trace from the execution

Formatting '/data/fkordon/mcc2024-input.r492-smll-171636266700356.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2024-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 2-5568
Executing tool ltsminxred
Input is FMS-PT-05000, examination is LTLFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r492-smll-171636266700356
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 424K
-rw-r--r-- 1 mcc users 7.5K May 14 13:22 CTLCardinality.txt
-rw-r--r-- 1 mcc users 81K May 14 13:22 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.1K May 14 13:22 CTLFireability.txt
-rw-r--r-- 1 mcc users 49K May 14 13:22 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K May 18 16:42 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.3K May 18 16:42 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 3.3K Apr 22 14:44 LTLCardinality.txt
-rw-r--r-- 1 mcc users 21K Apr 22 14:44 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.1K Apr 22 14:44 LTLFireability.txt
-rw-r--r-- 1 mcc users 15K Apr 22 14:44 LTLFireability.xml
-rw-r--r-- 1 mcc users 6.9K Apr 11 22:10 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 64K Apr 11 22:10 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 9.7K Apr 11 22:09 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 88K Apr 11 22:09 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.5K Apr 22 14:44 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.6K Apr 22 14:44 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 May 18 16:42 equiv_col
-rw-r--r-- 1 mcc users 6 May 18 16:42 instance
-rw-r--r-- 1 mcc users 6 May 18 16:42 iscolored
-rw-r--r-- 1 mcc users 16K May 18 16:42 model.pnml

--------------------
content from stdout:

=== Data for post analysis generated by BenchKit (invocation template)

The expected result is a vector of booleans
BOOL_VECTOR

here is the order used to build the result vector(from text file)
FORMULA_NAME FMS-PT-05000-LTLFireability-00
FORMULA_NAME FMS-PT-05000-LTLFireability-01
FORMULA_NAME FMS-PT-05000-LTLFireability-02
FORMULA_NAME FMS-PT-05000-LTLFireability-03
FORMULA_NAME FMS-PT-05000-LTLFireability-04
FORMULA_NAME FMS-PT-05000-LTLFireability-05
FORMULA_NAME FMS-PT-05000-LTLFireability-06
FORMULA_NAME FMS-PT-05000-LTLFireability-07
FORMULA_NAME FMS-PT-05000-LTLFireability-08
FORMULA_NAME FMS-PT-05000-LTLFireability-09
FORMULA_NAME FMS-PT-05000-LTLFireability-10
FORMULA_NAME FMS-PT-05000-LTLFireability-11
FORMULA_NAME FMS-PT-05000-LTLFireability-12
FORMULA_NAME FMS-PT-05000-LTLFireability-13
FORMULA_NAME FMS-PT-05000-LTLFireability-14
FORMULA_NAME FMS-PT-05000-LTLFireability-15

=== Now, execution of the tool begins

BK_START 1717241028262

Invoking MCC driver with
BK_TOOL=ltsminxred
BK_EXAMINATION=LTLFireability
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=FMS-PT-05000
BK_MEMORY_CONFINEMENT=16384
Applying reductions before tool ltsmin
Invoking reducer
Running Version 202405141337
[2024-06-01 11:23:49] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, LTLFireability, -timeout, 360, -rebuildPNML]
[2024-06-01 11:23:50] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2024-06-01 11:23:50] [INFO ] Load time of PNML (sax parser for PT used): 53 ms
[2024-06-01 11:23:50] [INFO ] Transformed 22 places.
[2024-06-01 11:23:50] [INFO ] Transformed 20 transitions.
[2024-06-01 11:23:50] [INFO ] Parsed PT model containing 22 places and 20 transitions and 50 arcs in 222 ms.
Parsed 16 properties from file /home/mcc/execution/LTLFireability.xml in 18 ms.
Working with output stream class java.io.PrintStream
Initial state reduction rules removed 2 formulas.
FORMULA FMS-PT-05000-LTLFireability-03 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA FMS-PT-05000-LTLFireability-12 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Support contains 20 out of 22 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 22/22 places, 20/20 transitions.
Applied a total of 0 rules in 17 ms. Remains 22 /22 variables (removed 0) and now considering 20/20 (removed 0) transitions.
// Phase 1: matrix 20 rows 22 cols
[2024-06-01 11:23:50] [INFO ] Computed 6 invariants in 13 ms
[2024-06-01 11:23:50] [INFO ] Implicit Places using invariants in 306 ms returned []
[2024-06-01 11:23:50] [INFO ] Invariant cache hit.
[2024-06-01 11:23:50] [INFO ] Implicit Places using invariants and state equation in 80 ms returned []
Implicit Place search using SMT with State Equation took 440 ms to find 0 implicit places.
Running 17 sub problems to find dead transitions.
[2024-06-01 11:23:50] [INFO ] Invariant cache hit.
At refinement iteration 0 (INCLUDED_ONLY) 0/19 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/19 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 2 (OVERLAPS) 3/22 variables, 3/6 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/22 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 4 (OVERLAPS) 20/42 variables, 22/28 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/42 variables, 0/28 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 6 (OVERLAPS) 0/42 variables, 0/28 constraints. Problems are: Problem set: 0 solved, 17 unsolved
No progress, stopping.
After SMT solving in domain Real declared 42/42 variables, and 28 constraints, problems are : Problem set: 0 solved, 17 unsolved in 439 ms.
Refiners :[Positive P Invariants (semi-flows): 6/6 constraints, State Equation: 22/22 constraints, PredecessorRefiner: 17/17 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 17 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/19 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/19 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 2 (OVERLAPS) 3/22 variables, 3/6 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/22 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 4 (OVERLAPS) 20/42 variables, 22/28 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/42 variables, 17/45 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/42 variables, 0/45 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 7 (OVERLAPS) 0/42 variables, 0/45 constraints. Problems are: Problem set: 0 solved, 17 unsolved
No progress, stopping.
After SMT solving in domain Int declared 42/42 variables, and 45 constraints, problems are : Problem set: 0 solved, 17 unsolved in 331 ms.
Refiners :[Positive P Invariants (semi-flows): 6/6 constraints, State Equation: 22/22 constraints, PredecessorRefiner: 17/17 constraints, Known Traps: 0/0 constraints]
After SMT, in 817ms problems are : Problem set: 0 solved, 17 unsolved
Search for dead transitions found 0 dead transitions in 831ms
Finished structural reductions in LTL mode , in 1 iterations and 1325 ms. Remains : 22/22 places, 20/20 transitions.
Support contains 20 out of 22 places after structural reductions.
[2024-06-01 11:23:52] [INFO ] Flatten gal took : 32 ms
[2024-06-01 11:23:52] [INFO ] Flatten gal took : 11 ms
[2024-06-01 11:23:52] [INFO ] Input system was already deterministic with 20 transitions.
RANDOM walk for 40013 steps (4 resets) in 231 ms. (172 steps per ms) remains 12/18 properties
BEST_FIRST walk for 3807 steps (0 resets) in 106 ms. (35 steps per ms) remains 0/12 properties
Computed a total of 0 stabilizing places and 0 stable transitions
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202405141337/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X((X(G(p0)) U G((p1 U X(p2))))))'
Support contains 4 out of 22 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 22/22 places, 20/20 transitions.
Applied a total of 0 rules in 1 ms. Remains 22 /22 variables (removed 0) and now considering 20/20 (removed 0) transitions.
[2024-06-01 11:23:52] [INFO ] Invariant cache hit.
[2024-06-01 11:23:52] [INFO ] Implicit Places using invariants in 44 ms returned []
[2024-06-01 11:23:52] [INFO ] Invariant cache hit.
[2024-06-01 11:23:52] [INFO ] Implicit Places using invariants and state equation in 43 ms returned []
Implicit Place search using SMT with State Equation took 90 ms to find 0 implicit places.
Running 17 sub problems to find dead transitions.
[2024-06-01 11:23:52] [INFO ] Invariant cache hit.
At refinement iteration 0 (INCLUDED_ONLY) 0/19 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/19 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 2 (OVERLAPS) 3/22 variables, 3/6 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/22 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 4 (OVERLAPS) 20/42 variables, 22/28 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/42 variables, 0/28 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 6 (OVERLAPS) 0/42 variables, 0/28 constraints. Problems are: Problem set: 0 solved, 17 unsolved
No progress, stopping.
After SMT solving in domain Real declared 42/42 variables, and 28 constraints, problems are : Problem set: 0 solved, 17 unsolved in 261 ms.
Refiners :[Positive P Invariants (semi-flows): 6/6 constraints, State Equation: 22/22 constraints, PredecessorRefiner: 17/17 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 17 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/19 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/19 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 2 (OVERLAPS) 3/22 variables, 3/6 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/22 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 4 (OVERLAPS) 20/42 variables, 22/28 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/42 variables, 17/45 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/42 variables, 0/45 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 7 (OVERLAPS) 0/42 variables, 0/45 constraints. Problems are: Problem set: 0 solved, 17 unsolved
No progress, stopping.
After SMT solving in domain Int declared 42/42 variables, and 45 constraints, problems are : Problem set: 0 solved, 17 unsolved in 225 ms.
Refiners :[Positive P Invariants (semi-flows): 6/6 constraints, State Equation: 22/22 constraints, PredecessorRefiner: 17/17 constraints, Known Traps: 0/0 constraints]
After SMT, in 507ms problems are : Problem set: 0 solved, 17 unsolved
Search for dead transitions found 0 dead transitions in 508ms
Finished structural reductions in LTL mode , in 1 iterations and 600 ms. Remains : 22/22 places, 20/20 transitions.
Stuttering acceptance computed with spot in 647 ms :[(NOT p2), (NOT p2), (NOT p2), (AND p1 (NOT p0) (NOT p2)), (NOT p2), (AND p1 (NOT p2) (NOT p0)), true, (NOT p0), (AND (NOT p2) p0), (AND p0 (NOT p2)), (OR (AND p1 (NOT p2)) (AND p0 (NOT p2)))]
Running random walk in product with property : FMS-PT-05000-LTLFireability-00
Product exploration explored 100000 steps with 24680 reset in 348 ms.
Stack based approach found an accepted trace after 3001 steps with 719 reset with depth 5 and stack size 5 in 9 ms.
FORMULA FMS-PT-05000-LTLFireability-00 FALSE TECHNIQUES STACK_TEST
Treatment of property FMS-PT-05000-LTLFireability-00 finished in 1712 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202405141337/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(F((p0 U (F(G(p1))||((p0||F(G(p1)))&&p2)||G(p0)))))'
Support contains 4 out of 22 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 22/22 places, 20/20 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 4 transitions
Trivial Post-agglo rules discarded 4 transitions
Performed 4 trivial Post agglomeration. Transition count delta: 4
Iterating post reduction 0 with 4 rules applied. Total rules applied 4 place count 22 transition count 16
Reduce places removed 6 places and 0 transitions.
Graph (trivial) has 9 edges and 16 vertex of which 3 / 16 are part of one of the 1 SCC in 2 ms
Free SCC test removed 2 places
Drop transitions (Trivial Post-Agglo cleanup.) removed 1 transitions
Trivial Post-agglo rules discarded 1 transitions
Performed 1 trivial Post agglomeration. Transition count delta: 1
Iterating post reduction 1 with 8 rules applied. Total rules applied 12 place count 14 transition count 15
Reduce places removed 1 places and 0 transitions.
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Iterating post reduction 2 with 4 rules applied. Total rules applied 16 place count 13 transition count 12
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 3 with 1 rules applied. Total rules applied 17 place count 12 transition count 12
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 4 with 1 Pre rules applied. Total rules applied 17 place count 12 transition count 11
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 4 with 2 rules applied. Total rules applied 19 place count 11 transition count 11
Performed 2 Post agglomeration using F-continuation condition.Transition count delta: 2
Deduced a syphon composed of 2 places in 0 ms
Reduce places removed 3 places and 0 transitions.
Iterating global reduction 4 with 5 rules applied. Total rules applied 24 place count 8 transition count 9
Applied a total of 24 rules in 42 ms. Remains 8 /22 variables (removed 14) and now considering 9/20 (removed 11) transitions.
[2024-06-01 11:23:54] [INFO ] Flow matrix only has 8 transitions (discarded 1 similar events)
// Phase 1: matrix 8 rows 8 cols
[2024-06-01 11:23:54] [INFO ] Computed 3 invariants in 0 ms
[2024-06-01 11:23:54] [INFO ] Implicit Places using invariants in 29 ms returned []
[2024-06-01 11:23:54] [INFO ] Flow matrix only has 8 transitions (discarded 1 similar events)
[2024-06-01 11:23:54] [INFO ] Invariant cache hit.
[2024-06-01 11:23:54] [INFO ] Implicit Places using invariants and state equation in 32 ms returned []
Implicit Place search using SMT with State Equation took 63 ms to find 0 implicit places.
[2024-06-01 11:23:54] [INFO ] Redundant transitions in 0 ms returned []
Running 5 sub problems to find dead transitions.
[2024-06-01 11:23:54] [INFO ] Flow matrix only has 8 transitions (discarded 1 similar events)
[2024-06-01 11:23:54] [INFO ] Invariant cache hit.
At refinement iteration 0 (INCLUDED_ONLY) 0/6 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/6 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 2 (OVERLAPS) 2/8 variables, 2/3 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/8 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 4 (OVERLAPS) 7/15 variables, 8/11 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/15 variables, 0/11 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 6 (OVERLAPS) 0/15 variables, 0/11 constraints. Problems are: Problem set: 0 solved, 5 unsolved
No progress, stopping.
After SMT solving in domain Real declared 15/16 variables, and 11 constraints, problems are : Problem set: 0 solved, 5 unsolved in 64 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 8/8 constraints, PredecessorRefiner: 5/5 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 5 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/6 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/6 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 2 (OVERLAPS) 2/8 variables, 2/3 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/8 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 4 (OVERLAPS) 7/15 variables, 8/11 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/15 variables, 5/16 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/15 variables, 0/16 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 7 (OVERLAPS) 0/15 variables, 0/16 constraints. Problems are: Problem set: 0 solved, 5 unsolved
No progress, stopping.
After SMT solving in domain Int declared 15/16 variables, and 16 constraints, problems are : Problem set: 0 solved, 5 unsolved in 81 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 8/8 constraints, PredecessorRefiner: 5/5 constraints, Known Traps: 0/0 constraints]
After SMT, in 153ms problems are : Problem set: 0 solved, 5 unsolved
Search for dead transitions found 0 dead transitions in 154ms
Starting structural reductions in SI_LTL mode, iteration 1 : 8/22 places, 9/20 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 265 ms. Remains : 8/22 places, 9/20 transitions.
Stuttering acceptance computed with spot in 45 ms :[(AND (NOT p0) (NOT p1))]
Running random walk in product with property : FMS-PT-05000-LTLFireability-01
Stuttering criterion allowed to conclude after 28 steps with 0 reset in 1 ms.
FORMULA FMS-PT-05000-LTLFireability-01 FALSE TECHNIQUES STUTTER_TEST
Treatment of property FMS-PT-05000-LTLFireability-01 finished in 329 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202405141337/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X(G(p0)))'
Support contains 1 out of 22 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 22/22 places, 20/20 transitions.
Applied a total of 0 rules in 0 ms. Remains 22 /22 variables (removed 0) and now considering 20/20 (removed 0) transitions.
// Phase 1: matrix 20 rows 22 cols
[2024-06-01 11:23:54] [INFO ] Computed 6 invariants in 1 ms
[2024-06-01 11:23:54] [INFO ] Implicit Places using invariants in 59 ms returned []
[2024-06-01 11:23:54] [INFO ] Invariant cache hit.
[2024-06-01 11:23:54] [INFO ] Implicit Places using invariants and state equation in 41 ms returned []
Implicit Place search using SMT with State Equation took 103 ms to find 0 implicit places.
Running 17 sub problems to find dead transitions.
[2024-06-01 11:23:54] [INFO ] Invariant cache hit.
At refinement iteration 0 (INCLUDED_ONLY) 0/19 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/19 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 2 (OVERLAPS) 3/22 variables, 3/6 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/22 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 4 (OVERLAPS) 20/42 variables, 22/28 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/42 variables, 0/28 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 6 (OVERLAPS) 0/42 variables, 0/28 constraints. Problems are: Problem set: 0 solved, 17 unsolved
No progress, stopping.
After SMT solving in domain Real declared 42/42 variables, and 28 constraints, problems are : Problem set: 0 solved, 17 unsolved in 206 ms.
Refiners :[Positive P Invariants (semi-flows): 6/6 constraints, State Equation: 22/22 constraints, PredecessorRefiner: 17/17 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 17 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/19 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/19 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 2 (OVERLAPS) 3/22 variables, 3/6 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/22 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 4 (OVERLAPS) 20/42 variables, 22/28 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/42 variables, 17/45 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/42 variables, 0/45 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 7 (OVERLAPS) 0/42 variables, 0/45 constraints. Problems are: Problem set: 0 solved, 17 unsolved
No progress, stopping.
After SMT solving in domain Int declared 42/42 variables, and 45 constraints, problems are : Problem set: 0 solved, 17 unsolved in 201 ms.
Refiners :[Positive P Invariants (semi-flows): 6/6 constraints, State Equation: 22/22 constraints, PredecessorRefiner: 17/17 constraints, Known Traps: 0/0 constraints]
After SMT, in 417ms problems are : Problem set: 0 solved, 17 unsolved
Search for dead transitions found 0 dead transitions in 417ms
Finished structural reductions in LTL mode , in 1 iterations and 523 ms. Remains : 22/22 places, 20/20 transitions.
Stuttering acceptance computed with spot in 84 ms :[true, (NOT p0), (NOT p0)]
Running random walk in product with property : FMS-PT-05000-LTLFireability-02
Entered a terminal (fully accepting) state of product in 91 steps with 0 reset in 1 ms.
FORMULA FMS-PT-05000-LTLFireability-02 FALSE TECHNIQUES STUTTER_TEST
Treatment of property FMS-PT-05000-LTLFireability-02 finished in 623 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202405141337/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X(X(F(p0))))'
Support contains 3 out of 22 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 22/22 places, 20/20 transitions.
Applied a total of 0 rules in 1 ms. Remains 22 /22 variables (removed 0) and now considering 20/20 (removed 0) transitions.
[2024-06-01 11:23:55] [INFO ] Invariant cache hit.
[2024-06-01 11:23:55] [INFO ] Implicit Places using invariants in 39 ms returned []
[2024-06-01 11:23:55] [INFO ] Invariant cache hit.
[2024-06-01 11:23:55] [INFO ] Implicit Places using invariants and state equation in 41 ms returned []
Implicit Place search using SMT with State Equation took 83 ms to find 0 implicit places.
Running 17 sub problems to find dead transitions.
[2024-06-01 11:23:55] [INFO ] Invariant cache hit.
At refinement iteration 0 (INCLUDED_ONLY) 0/19 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/19 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 2 (OVERLAPS) 3/22 variables, 3/6 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/22 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 4 (OVERLAPS) 20/42 variables, 22/28 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/42 variables, 0/28 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 6 (OVERLAPS) 0/42 variables, 0/28 constraints. Problems are: Problem set: 0 solved, 17 unsolved
No progress, stopping.
After SMT solving in domain Real declared 42/42 variables, and 28 constraints, problems are : Problem set: 0 solved, 17 unsolved in 219 ms.
Refiners :[Positive P Invariants (semi-flows): 6/6 constraints, State Equation: 22/22 constraints, PredecessorRefiner: 17/17 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 17 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/19 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/19 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 2 (OVERLAPS) 3/22 variables, 3/6 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/22 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 4 (OVERLAPS) 20/42 variables, 22/28 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/42 variables, 17/45 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/42 variables, 0/45 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 7 (OVERLAPS) 0/42 variables, 0/45 constraints. Problems are: Problem set: 0 solved, 17 unsolved
No progress, stopping.
After SMT solving in domain Int declared 42/42 variables, and 45 constraints, problems are : Problem set: 0 solved, 17 unsolved in 210 ms.
Refiners :[Positive P Invariants (semi-flows): 6/6 constraints, State Equation: 22/22 constraints, PredecessorRefiner: 17/17 constraints, Known Traps: 0/0 constraints]
After SMT, in 442ms problems are : Problem set: 0 solved, 17 unsolved
Search for dead transitions found 0 dead transitions in 443ms
Finished structural reductions in LTL mode , in 1 iterations and 527 ms. Remains : 22/22 places, 20/20 transitions.
Stuttering acceptance computed with spot in 118 ms :[(NOT p0), (NOT p0), (NOT p0)]
Running random walk in product with property : FMS-PT-05000-LTLFireability-04
Product exploration explored 100000 steps with 33333 reset in 99 ms.
Product exploration explored 100000 steps with 33333 reset in 107 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 : [p0, (X (X p0))]
False Knowledge obtained : []
Property proved to be true thanks to knowledge (Minato strategy)
Knowledge based reduction with 2 factoid took 19 ms. Reduced automaton from 3 states, 3 edges and 1 AP (stutter sensitive) to 1 states, 0 edges and 0 AP (stutter insensitive).
FORMULA FMS-PT-05000-LTLFireability-04 TRUE TECHNIQUES KNOWLEDGE
Treatment of property FMS-PT-05000-LTLFireability-04 finished in 899 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202405141337/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(F(G(p0)))'
Support contains 4 out of 22 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 22/22 places, 20/20 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 4 transitions
Trivial Post-agglo rules discarded 4 transitions
Performed 4 trivial Post agglomeration. Transition count delta: 4
Iterating post reduction 0 with 4 rules applied. Total rules applied 4 place count 22 transition count 16
Reduce places removed 6 places and 0 transitions.
Graph (trivial) has 7 edges and 16 vertex of which 3 / 16 are part of one of the 1 SCC in 0 ms
Free SCC test removed 2 places
Drop transitions (Trivial Post-Agglo cleanup.) removed 2 transitions
Trivial Post-agglo rules discarded 2 transitions
Performed 2 trivial Post agglomeration. Transition count delta: 2
Iterating post reduction 1 with 9 rules applied. Total rules applied 13 place count 14 transition count 14
Reduce places removed 2 places and 0 transitions.
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Iterating post reduction 2 with 5 rules applied. Total rules applied 18 place count 12 transition count 11
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 3 with 1 rules applied. Total rules applied 19 place count 11 transition count 11
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 4 with 1 Pre rules applied. Total rules applied 19 place count 11 transition count 10
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 4 with 2 rules applied. Total rules applied 21 place count 10 transition count 10
Partial Post-agglomeration rule applied 1 times.
Drop transitions (Partial Post agglomeration) removed 1 transitions
Iterating global reduction 4 with 1 rules applied. Total rules applied 22 place count 10 transition count 10
Applied a total of 22 rules in 6 ms. Remains 10 /22 variables (removed 12) and now considering 10/20 (removed 10) transitions.
// Phase 1: matrix 10 rows 10 cols
[2024-06-01 11:23:56] [INFO ] Computed 4 invariants in 1 ms
[2024-06-01 11:23:56] [INFO ] Implicit Places using invariants in 36 ms returned []
[2024-06-01 11:23:56] [INFO ] Invariant cache hit.
[2024-06-01 11:23:56] [INFO ] Implicit Places using invariants and state equation in 31 ms returned []
Implicit Place search using SMT with State Equation took 72 ms to find 0 implicit places.
[2024-06-01 11:23:56] [INFO ] Redundant transitions in 0 ms returned []
Running 6 sub problems to find dead transitions.
[2024-06-01 11:23:56] [INFO ] Invariant cache hit.
At refinement iteration 0 (INCLUDED_ONLY) 0/7 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/7 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 2 (OVERLAPS) 3/10 variables, 3/4 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/10 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 4 (OVERLAPS) 9/19 variables, 10/14 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/19 variables, 0/14 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 6 (OVERLAPS) 0/19 variables, 0/14 constraints. Problems are: Problem set: 0 solved, 6 unsolved
No progress, stopping.
After SMT solving in domain Real declared 19/20 variables, and 14 constraints, problems are : Problem set: 0 solved, 6 unsolved in 82 ms.
Refiners :[Positive P Invariants (semi-flows): 4/4 constraints, State Equation: 10/10 constraints, PredecessorRefiner: 6/6 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 6 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/7 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/7 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 2 (OVERLAPS) 3/10 variables, 3/4 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/10 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 4 (OVERLAPS) 9/19 variables, 10/14 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/19 variables, 6/20 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/19 variables, 0/20 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 7 (OVERLAPS) 0/19 variables, 0/20 constraints. Problems are: Problem set: 0 solved, 6 unsolved
No progress, stopping.
After SMT solving in domain Int declared 19/20 variables, and 20 constraints, problems are : Problem set: 0 solved, 6 unsolved in 77 ms.
Refiners :[Positive P Invariants (semi-flows): 4/4 constraints, State Equation: 10/10 constraints, PredecessorRefiner: 6/6 constraints, Known Traps: 0/0 constraints]
After SMT, in 165ms problems are : Problem set: 0 solved, 6 unsolved
Search for dead transitions found 0 dead transitions in 166ms
Starting structural reductions in SI_LTL mode, iteration 1 : 10/22 places, 10/20 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 250 ms. Remains : 10/22 places, 10/20 transitions.
Stuttering acceptance computed with spot in 52 ms :[(NOT p0)]
Running random walk in product with property : FMS-PT-05000-LTLFireability-05
Stuttering criterion allowed to conclude after 0 steps with 0 reset in 1 ms.
FORMULA FMS-PT-05000-LTLFireability-05 FALSE TECHNIQUES STUTTER_TEST
Treatment of property FMS-PT-05000-LTLFireability-05 finished in 316 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202405141337/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(G(F(p0)))'
Support contains 1 out of 22 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 22/22 places, 20/20 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 4 transitions
Trivial Post-agglo rules discarded 4 transitions
Performed 4 trivial Post agglomeration. Transition count delta: 4
Iterating post reduction 0 with 4 rules applied. Total rules applied 4 place count 22 transition count 16
Reduce places removed 6 places and 0 transitions.
Graph (trivial) has 9 edges and 16 vertex of which 3 / 16 are part of one of the 1 SCC in 0 ms
Free SCC test removed 2 places
Drop transitions (Trivial Post-Agglo cleanup.) removed 2 transitions
Trivial Post-agglo rules discarded 2 transitions
Performed 2 trivial Post agglomeration. Transition count delta: 2
Iterating post reduction 1 with 9 rules applied. Total rules applied 13 place count 14 transition count 14
Reduce places removed 2 places and 0 transitions.
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Iterating post reduction 2 with 5 rules applied. Total rules applied 18 place count 12 transition count 11
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 3 with 1 rules applied. Total rules applied 19 place count 11 transition count 11
Performed 2 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 4 with 2 Pre rules applied. Total rules applied 19 place count 11 transition count 9
Deduced a syphon composed of 2 places in 0 ms
Reduce places removed 2 places and 0 transitions.
Iterating global reduction 4 with 4 rules applied. Total rules applied 23 place count 9 transition count 9
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 4 with 3 rules applied. Total rules applied 26 place count 7 transition count 8
Applied a total of 26 rules in 3 ms. Remains 7 /22 variables (removed 15) and now considering 8/20 (removed 12) transitions.
[2024-06-01 11:23:56] [INFO ] Flow matrix only has 7 transitions (discarded 1 similar events)
// Phase 1: matrix 7 rows 7 cols
[2024-06-01 11:23:56] [INFO ] Computed 3 invariants in 1 ms
[2024-06-01 11:23:56] [INFO ] Implicit Places using invariants in 23 ms returned []
[2024-06-01 11:23:56] [INFO ] Flow matrix only has 7 transitions (discarded 1 similar events)
[2024-06-01 11:23:56] [INFO ] Invariant cache hit.
[2024-06-01 11:23:56] [INFO ] Implicit Places using invariants and state equation in 31 ms returned []
Implicit Place search using SMT with State Equation took 55 ms to find 0 implicit places.
[2024-06-01 11:23:56] [INFO ] Redundant transitions in 0 ms returned []
Running 4 sub problems to find dead transitions.
[2024-06-01 11:23:56] [INFO ] Flow matrix only has 7 transitions (discarded 1 similar events)
[2024-06-01 11:23:56] [INFO ] Invariant cache hit.
At refinement iteration 0 (INCLUDED_ONLY) 0/4 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 1 (OVERLAPS) 3/7 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/7 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 3 (OVERLAPS) 6/13 variables, 7/10 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/13 variables, 0/10 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 5 (OVERLAPS) 0/13 variables, 0/10 constraints. Problems are: Problem set: 0 solved, 4 unsolved
No progress, stopping.
After SMT solving in domain Real declared 13/14 variables, and 10 constraints, problems are : Problem set: 0 solved, 4 unsolved in 57 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 7/7 constraints, PredecessorRefiner: 4/4 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 4 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/4 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 1 (OVERLAPS) 3/7 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/7 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 3 (OVERLAPS) 6/13 variables, 7/10 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/13 variables, 4/14 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/13 variables, 0/14 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 6 (OVERLAPS) 0/13 variables, 0/14 constraints. Problems are: Problem set: 0 solved, 4 unsolved
No progress, stopping.
After SMT solving in domain Int declared 13/14 variables, and 14 constraints, problems are : Problem set: 0 solved, 4 unsolved in 50 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 7/7 constraints, PredecessorRefiner: 4/4 constraints, Known Traps: 0/0 constraints]
After SMT, in 111ms problems are : Problem set: 0 solved, 4 unsolved
Search for dead transitions found 0 dead transitions in 111ms
Starting structural reductions in SI_LTL mode, iteration 1 : 7/22 places, 8/20 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 177 ms. Remains : 7/22 places, 8/20 transitions.
Stuttering acceptance computed with spot in 83 ms :[(NOT p0), (NOT p0)]
Running random walk in product with property : FMS-PT-05000-LTLFireability-06
Stuttering criterion allowed to conclude after 4 steps with 0 reset in 0 ms.
FORMULA FMS-PT-05000-LTLFireability-06 FALSE TECHNIQUES STUTTER_TEST
Treatment of property FMS-PT-05000-LTLFireability-06 finished in 272 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202405141337/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X((G((p0||(p1 U (p2||G(p1)))))&&(F(!p0)||X(!p3)))))'
Support contains 5 out of 22 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 22/22 places, 20/20 transitions.
Applied a total of 0 rules in 0 ms. Remains 22 /22 variables (removed 0) and now considering 20/20 (removed 0) transitions.
// Phase 1: matrix 20 rows 22 cols
[2024-06-01 11:23:56] [INFO ] Computed 6 invariants in 1 ms
[2024-06-01 11:23:56] [INFO ] Implicit Places using invariants in 33 ms returned []
[2024-06-01 11:23:56] [INFO ] Invariant cache hit.
[2024-06-01 11:23:56] [INFO ] Implicit Places using invariants and state equation in 41 ms returned []
Implicit Place search using SMT with State Equation took 75 ms to find 0 implicit places.
Running 17 sub problems to find dead transitions.
[2024-06-01 11:23:56] [INFO ] Invariant cache hit.
At refinement iteration 0 (INCLUDED_ONLY) 0/19 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/19 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 2 (OVERLAPS) 3/22 variables, 3/6 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/22 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 4 (OVERLAPS) 20/42 variables, 22/28 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/42 variables, 0/28 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 6 (OVERLAPS) 0/42 variables, 0/28 constraints. Problems are: Problem set: 0 solved, 17 unsolved
No progress, stopping.
After SMT solving in domain Real declared 42/42 variables, and 28 constraints, problems are : Problem set: 0 solved, 17 unsolved in 258 ms.
Refiners :[Positive P Invariants (semi-flows): 6/6 constraints, State Equation: 22/22 constraints, PredecessorRefiner: 17/17 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 17 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/19 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/19 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 2 (OVERLAPS) 3/22 variables, 3/6 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/22 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 4 (OVERLAPS) 20/42 variables, 22/28 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/42 variables, 17/45 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/42 variables, 0/45 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 7 (OVERLAPS) 0/42 variables, 0/45 constraints. Problems are: Problem set: 0 solved, 17 unsolved
No progress, stopping.
After SMT solving in domain Int declared 42/42 variables, and 45 constraints, problems are : Problem set: 0 solved, 17 unsolved in 184 ms.
Refiners :[Positive P Invariants (semi-flows): 6/6 constraints, State Equation: 22/22 constraints, PredecessorRefiner: 17/17 constraints, Known Traps: 0/0 constraints]
After SMT, in 454ms problems are : Problem set: 0 solved, 17 unsolved
Search for dead transitions found 0 dead transitions in 455ms
Finished structural reductions in LTL mode , in 1 iterations and 530 ms. Remains : 22/22 places, 20/20 transitions.
Stuttering acceptance computed with spot in 276 ms :[(OR (AND (NOT p0) (NOT p1) (NOT p2)) (AND p0 p3)), (AND (NOT p1) (NOT p2)), (AND (NOT p2) (NOT p1) (NOT p0)), true, (OR (AND (NOT p0) (NOT p1) (NOT p2)) (AND p0 p3)), (OR (AND (NOT p0) (NOT p1) (NOT p2)) (AND p0 p3)), (OR p0 (AND (NOT p1) (NOT p2)))]
Running random walk in product with property : FMS-PT-05000-LTLFireability-07
Entered a terminal (fully accepting) state of product in 4 steps with 0 reset in 0 ms.
FORMULA FMS-PT-05000-LTLFireability-07 FALSE TECHNIQUES STUTTER_TEST
Treatment of property FMS-PT-05000-LTLFireability-07 finished in 832 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202405141337/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(G(F((!p0||G(p1)))))'
Support contains 2 out of 22 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 22/22 places, 20/20 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 4 transitions
Trivial Post-agglo rules discarded 4 transitions
Performed 4 trivial Post agglomeration. Transition count delta: 4
Iterating post reduction 0 with 4 rules applied. Total rules applied 4 place count 22 transition count 16
Reduce places removed 6 places and 0 transitions.
Graph (trivial) has 11 edges and 16 vertex of which 9 / 16 are part of one of the 3 SCC in 0 ms
Free SCC test removed 6 places
Iterating post reduction 1 with 7 rules applied. Total rules applied 11 place count 10 transition count 16
Reduce places removed 1 places and 0 transitions.
Ensure Unique test removed 6 transitions
Reduce isomorphic transitions removed 6 transitions.
Iterating post reduction 2 with 7 rules applied. Total rules applied 18 place count 9 transition count 10
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 3 with 2 rules applied. Total rules applied 20 place count 8 transition count 9
Drop transitions (Redundant composition of simpler transitions.) removed 2 transitions
Redundant transition composition rules discarded 2 transitions
Iterating global reduction 3 with 2 rules applied. Total rules applied 22 place count 8 transition count 7
Performed 2 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 2 Pre rules applied. Total rules applied 22 place count 8 transition count 5
Deduced a syphon composed of 2 places in 1 ms
Ensure Unique test removed 1 places
Reduce places removed 3 places and 0 transitions.
Iterating global reduction 3 with 5 rules applied. Total rules applied 27 place count 5 transition count 5
Applied a total of 27 rules in 9 ms. Remains 5 /22 variables (removed 17) and now considering 5/20 (removed 15) transitions.
// Phase 1: matrix 5 rows 5 cols
[2024-06-01 11:23:57] [INFO ] Computed 2 invariants in 0 ms
[2024-06-01 11:23:57] [INFO ] Implicit Places using invariants in 23 ms returned []
[2024-06-01 11:23:57] [INFO ] Invariant cache hit.
[2024-06-01 11:23:57] [INFO ] Implicit Places using invariants and state equation in 23 ms returned []
Implicit Place search using SMT with State Equation took 47 ms to find 0 implicit places.
[2024-06-01 11:23:57] [INFO ] Redundant transitions in 0 ms returned []
Running 3 sub problems to find dead transitions.
[2024-06-01 11:23:57] [INFO ] Invariant cache hit.
At refinement iteration 0 (INCLUDED_ONLY) 0/4 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/4 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (OVERLAPS) 1/5 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/5 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (OVERLAPS) 4/9 variables, 5/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/9 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 6 (OVERLAPS) 0/9 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Real declared 9/10 variables, and 7 constraints, problems are : Problem set: 0 solved, 3 unsolved in 55 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, State Equation: 5/5 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 3 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/4 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/4 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (OVERLAPS) 1/5 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/5 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (OVERLAPS) 4/9 variables, 5/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/9 variables, 3/10 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/9 variables, 0/10 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 7 (OVERLAPS) 0/9 variables, 0/10 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Int declared 9/10 variables, and 10 constraints, problems are : Problem set: 0 solved, 3 unsolved in 48 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, State Equation: 5/5 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints]
After SMT, in 107ms problems are : Problem set: 0 solved, 3 unsolved
Search for dead transitions found 0 dead transitions in 108ms
Starting structural reductions in SI_LTL mode, iteration 1 : 5/22 places, 5/20 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 168 ms. Remains : 5/22 places, 5/20 transitions.
Stuttering acceptance computed with spot in 73 ms :[(AND (NOT p1) p0), (AND (NOT p1) p0)]
Running random walk in product with property : FMS-PT-05000-LTLFireability-08
Stuttering criterion allowed to conclude after 0 steps with 0 reset in 0 ms.
FORMULA FMS-PT-05000-LTLFireability-08 FALSE TECHNIQUES STUTTER_TEST
Treatment of property FMS-PT-05000-LTLFireability-08 finished in 257 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202405141337/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X(G((p0&&F(p1)&&F(p2)))))'
Support contains 3 out of 22 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 22/22 places, 20/20 transitions.
Applied a total of 0 rules in 1 ms. Remains 22 /22 variables (removed 0) and now considering 20/20 (removed 0) transitions.
// Phase 1: matrix 20 rows 22 cols
[2024-06-01 11:23:57] [INFO ] Computed 6 invariants in 1 ms
[2024-06-01 11:23:57] [INFO ] Implicit Places using invariants in 34 ms returned []
[2024-06-01 11:23:57] [INFO ] Invariant cache hit.
[2024-06-01 11:23:58] [INFO ] Implicit Places using invariants and state equation in 41 ms returned []
Implicit Place search using SMT with State Equation took 77 ms to find 0 implicit places.
Running 17 sub problems to find dead transitions.
[2024-06-01 11:23:58] [INFO ] Invariant cache hit.
At refinement iteration 0 (INCLUDED_ONLY) 0/19 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/19 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 2 (OVERLAPS) 3/22 variables, 3/6 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/22 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 4 (OVERLAPS) 20/42 variables, 22/28 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/42 variables, 0/28 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 6 (OVERLAPS) 0/42 variables, 0/28 constraints. Problems are: Problem set: 0 solved, 17 unsolved
No progress, stopping.
After SMT solving in domain Real declared 42/42 variables, and 28 constraints, problems are : Problem set: 0 solved, 17 unsolved in 238 ms.
Refiners :[Positive P Invariants (semi-flows): 6/6 constraints, State Equation: 22/22 constraints, PredecessorRefiner: 17/17 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 17 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/19 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/19 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 2 (OVERLAPS) 3/22 variables, 3/6 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/22 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 4 (OVERLAPS) 20/42 variables, 22/28 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/42 variables, 17/45 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/42 variables, 0/45 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 7 (OVERLAPS) 0/42 variables, 0/45 constraints. Problems are: Problem set: 0 solved, 17 unsolved
No progress, stopping.
After SMT solving in domain Int declared 42/42 variables, and 45 constraints, problems are : Problem set: 0 solved, 17 unsolved in 178 ms.
Refiners :[Positive P Invariants (semi-flows): 6/6 constraints, State Equation: 22/22 constraints, PredecessorRefiner: 17/17 constraints, Known Traps: 0/0 constraints]
After SMT, in 421ms problems are : Problem set: 0 solved, 17 unsolved
Search for dead transitions found 0 dead transitions in 422ms
Finished structural reductions in LTL mode , in 1 iterations and 500 ms. Remains : 22/22 places, 20/20 transitions.
Stuttering acceptance computed with spot in 174 ms :[(OR (NOT p0) (NOT p1) (NOT p2)), (OR (NOT p0) (NOT p1) (NOT p2)), true, (NOT p1), (NOT p2)]
Running random walk in product with property : FMS-PT-05000-LTLFireability-09
Product exploration explored 100000 steps with 3 reset in 143 ms.
Stack based approach found an accepted trace after 71 steps with 3 reset with depth 14 and stack size 14 in 0 ms.
FORMULA FMS-PT-05000-LTLFireability-09 FALSE TECHNIQUES STACK_TEST
Treatment of property FMS-PT-05000-LTLFireability-09 finished in 835 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202405141337/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!((G(p0)||(X(p1) U p2)))'
Support contains 4 out of 22 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 22/22 places, 20/20 transitions.
Applied a total of 0 rules in 1 ms. Remains 22 /22 variables (removed 0) and now considering 20/20 (removed 0) transitions.
[2024-06-01 11:23:58] [INFO ] Invariant cache hit.
[2024-06-01 11:23:58] [INFO ] Implicit Places using invariants in 28 ms returned []
[2024-06-01 11:23:58] [INFO ] Invariant cache hit.
[2024-06-01 11:23:58] [INFO ] Implicit Places using invariants and state equation in 46 ms returned []
Implicit Place search using SMT with State Equation took 88 ms to find 0 implicit places.
Running 17 sub problems to find dead transitions.
[2024-06-01 11:23:58] [INFO ] Invariant cache hit.
At refinement iteration 0 (INCLUDED_ONLY) 0/19 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/19 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 2 (OVERLAPS) 3/22 variables, 3/6 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/22 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 4 (OVERLAPS) 20/42 variables, 22/28 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/42 variables, 0/28 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 6 (OVERLAPS) 0/42 variables, 0/28 constraints. Problems are: Problem set: 0 solved, 17 unsolved
No progress, stopping.
After SMT solving in domain Real declared 42/42 variables, and 28 constraints, problems are : Problem set: 0 solved, 17 unsolved in 262 ms.
Refiners :[Positive P Invariants (semi-flows): 6/6 constraints, State Equation: 22/22 constraints, PredecessorRefiner: 17/17 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 17 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/19 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/19 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 2 (OVERLAPS) 3/22 variables, 3/6 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/22 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 4 (OVERLAPS) 20/42 variables, 22/28 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/42 variables, 17/45 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/42 variables, 0/45 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 7 (OVERLAPS) 0/42 variables, 0/45 constraints. Problems are: Problem set: 0 solved, 17 unsolved
No progress, stopping.
After SMT solving in domain Int declared 42/42 variables, and 45 constraints, problems are : Problem set: 0 solved, 17 unsolved in 226 ms.
Refiners :[Positive P Invariants (semi-flows): 6/6 constraints, State Equation: 22/22 constraints, PredecessorRefiner: 17/17 constraints, Known Traps: 0/0 constraints]
After SMT, in 504ms problems are : Problem set: 0 solved, 17 unsolved
Search for dead transitions found 0 dead transitions in 507ms
Finished structural reductions in LTL mode , in 1 iterations and 599 ms. Remains : 22/22 places, 20/20 transitions.
Stuttering acceptance computed with spot in 177 ms :[true, (OR (NOT p1) (NOT p2)), (AND (NOT p0) (NOT p2)), (OR (AND (NOT p0) (NOT p1)) (AND (NOT p0) (NOT p2))), (NOT p0)]
Running random walk in product with property : FMS-PT-05000-LTLFireability-10
Entered a terminal (fully accepting) state of product in 1 steps with 0 reset in 0 ms.
FORMULA FMS-PT-05000-LTLFireability-10 FALSE TECHNIQUES STUTTER_TEST
Treatment of property FMS-PT-05000-LTLFireability-10 finished in 801 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202405141337/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X(X(F(!p0))))'
Support contains 1 out of 22 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 22/22 places, 20/20 transitions.
Applied a total of 0 rules in 0 ms. Remains 22 /22 variables (removed 0) and now considering 20/20 (removed 0) transitions.
[2024-06-01 11:23:59] [INFO ] Invariant cache hit.
[2024-06-01 11:23:59] [INFO ] Implicit Places using invariants in 32 ms returned []
[2024-06-01 11:23:59] [INFO ] Invariant cache hit.
[2024-06-01 11:23:59] [INFO ] Implicit Places using invariants and state equation in 38 ms returned []
Implicit Place search using SMT with State Equation took 72 ms to find 0 implicit places.
Running 17 sub problems to find dead transitions.
[2024-06-01 11:23:59] [INFO ] Invariant cache hit.
At refinement iteration 0 (INCLUDED_ONLY) 0/19 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/19 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 2 (OVERLAPS) 3/22 variables, 3/6 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/22 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 4 (OVERLAPS) 20/42 variables, 22/28 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/42 variables, 0/28 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 6 (OVERLAPS) 0/42 variables, 0/28 constraints. Problems are: Problem set: 0 solved, 17 unsolved
No progress, stopping.
After SMT solving in domain Real declared 42/42 variables, and 28 constraints, problems are : Problem set: 0 solved, 17 unsolved in 227 ms.
Refiners :[Positive P Invariants (semi-flows): 6/6 constraints, State Equation: 22/22 constraints, PredecessorRefiner: 17/17 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 17 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/19 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/19 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 2 (OVERLAPS) 3/22 variables, 3/6 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/22 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 4 (OVERLAPS) 20/42 variables, 22/28 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/42 variables, 17/45 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/42 variables, 0/45 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 7 (OVERLAPS) 0/42 variables, 0/45 constraints. Problems are: Problem set: 0 solved, 17 unsolved
No progress, stopping.
After SMT solving in domain Int declared 42/42 variables, and 45 constraints, problems are : Problem set: 0 solved, 17 unsolved in 283 ms.
Refiners :[Positive P Invariants (semi-flows): 6/6 constraints, State Equation: 22/22 constraints, PredecessorRefiner: 17/17 constraints, Known Traps: 0/0 constraints]
After SMT, in 516ms problems are : Problem set: 0 solved, 17 unsolved
Search for dead transitions found 0 dead transitions in 516ms
Finished structural reductions in LTL mode , in 1 iterations and 590 ms. Remains : 22/22 places, 20/20 transitions.
Stuttering acceptance computed with spot in 127 ms :[p0, p0, p0]
Running random walk in product with property : FMS-PT-05000-LTLFireability-11
Product exploration explored 100000 steps with 5947 reset in 103 ms.
Stack based approach found an accepted trace after 24 steps with 2 reset with depth 9 and stack size 9 in 0 ms.
FORMULA FMS-PT-05000-LTLFireability-11 FALSE TECHNIQUES STACK_TEST
Treatment of property FMS-PT-05000-LTLFireability-11 finished in 834 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202405141337/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(F((G(!p0)&&(F(!p0) U p1))))'
Support contains 2 out of 22 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 22/22 places, 20/20 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 4 transitions
Trivial Post-agglo rules discarded 4 transitions
Performed 4 trivial Post agglomeration. Transition count delta: 4
Iterating post reduction 0 with 4 rules applied. Total rules applied 4 place count 22 transition count 16
Reduce places removed 6 places and 0 transitions.
Graph (trivial) has 9 edges and 16 vertex of which 3 / 16 are part of one of the 1 SCC in 0 ms
Free SCC test removed 2 places
Drop transitions (Trivial Post-Agglo cleanup.) removed 2 transitions
Trivial Post-agglo rules discarded 2 transitions
Performed 2 trivial Post agglomeration. Transition count delta: 2
Iterating post reduction 1 with 9 rules applied. Total rules applied 13 place count 14 transition count 14
Reduce places removed 2 places and 0 transitions.
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Iterating post reduction 2 with 5 rules applied. Total rules applied 18 place count 12 transition count 11
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 3 with 1 rules applied. Total rules applied 19 place count 11 transition count 11
Performed 2 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 4 with 2 Pre rules applied. Total rules applied 19 place count 11 transition count 9
Deduced a syphon composed of 2 places in 0 ms
Reduce places removed 2 places and 0 transitions.
Iterating global reduction 4 with 4 rules applied. Total rules applied 23 place count 9 transition count 9
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 4 with 3 rules applied. Total rules applied 26 place count 7 transition count 8
Applied a total of 26 rules in 7 ms. Remains 7 /22 variables (removed 15) and now considering 8/20 (removed 12) transitions.
[2024-06-01 11:24:00] [INFO ] Flow matrix only has 7 transitions (discarded 1 similar events)
// Phase 1: matrix 7 rows 7 cols
[2024-06-01 11:24:00] [INFO ] Computed 3 invariants in 1 ms
[2024-06-01 11:24:00] [INFO ] Implicit Places using invariants in 21 ms returned []
[2024-06-01 11:24:00] [INFO ] Flow matrix only has 7 transitions (discarded 1 similar events)
[2024-06-01 11:24:00] [INFO ] Invariant cache hit.
[2024-06-01 11:24:00] [INFO ] Implicit Places using invariants and state equation in 25 ms returned []
Implicit Place search using SMT with State Equation took 47 ms to find 0 implicit places.
[2024-06-01 11:24:00] [INFO ] Redundant transitions in 0 ms returned []
Running 4 sub problems to find dead transitions.
[2024-06-01 11:24:00] [INFO ] Flow matrix only has 7 transitions (discarded 1 similar events)
[2024-06-01 11:24:00] [INFO ] Invariant cache hit.
At refinement iteration 0 (INCLUDED_ONLY) 0/4 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 1 (OVERLAPS) 3/7 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/7 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 3 (OVERLAPS) 6/13 variables, 7/10 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/13 variables, 0/10 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 5 (OVERLAPS) 0/13 variables, 0/10 constraints. Problems are: Problem set: 0 solved, 4 unsolved
No progress, stopping.
After SMT solving in domain Real declared 13/14 variables, and 10 constraints, problems are : Problem set: 0 solved, 4 unsolved in 52 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 7/7 constraints, PredecessorRefiner: 4/4 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 4 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/4 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 1 (OVERLAPS) 3/7 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/7 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 3 (OVERLAPS) 6/13 variables, 7/10 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/13 variables, 4/14 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/13 variables, 0/14 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 6 (OVERLAPS) 0/13 variables, 0/14 constraints. Problems are: Problem set: 0 solved, 4 unsolved
No progress, stopping.
After SMT solving in domain Int declared 13/14 variables, and 14 constraints, problems are : Problem set: 0 solved, 4 unsolved in 50 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 7/7 constraints, PredecessorRefiner: 4/4 constraints, Known Traps: 0/0 constraints]
After SMT, in 105ms problems are : Problem set: 0 solved, 4 unsolved
Search for dead transitions found 0 dead transitions in 105ms
Starting structural reductions in SI_LTL mode, iteration 1 : 7/22 places, 8/20 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 164 ms. Remains : 7/22 places, 8/20 transitions.
Stuttering acceptance computed with spot in 154 ms :[(OR (NOT p1) p0), p0, (NOT p1), p0]
Running random walk in product with property : FMS-PT-05000-LTLFireability-13
Stuttering criterion allowed to conclude after 0 steps with 0 reset in 0 ms.
FORMULA FMS-PT-05000-LTLFireability-13 FALSE TECHNIQUES STUTTER_TEST
Treatment of property FMS-PT-05000-LTLFireability-13 finished in 334 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202405141337/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X((G(!p1)||F(p2)||p0)))'
Support contains 5 out of 22 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 22/22 places, 20/20 transitions.
Applied a total of 0 rules in 1 ms. Remains 22 /22 variables (removed 0) and now considering 20/20 (removed 0) transitions.
// Phase 1: matrix 20 rows 22 cols
[2024-06-01 11:24:00] [INFO ] Computed 6 invariants in 0 ms
[2024-06-01 11:24:00] [INFO ] Implicit Places using invariants in 28 ms returned []
[2024-06-01 11:24:00] [INFO ] Invariant cache hit.
[2024-06-01 11:24:00] [INFO ] Implicit Places using invariants and state equation in 39 ms returned []
Implicit Place search using SMT with State Equation took 69 ms to find 0 implicit places.
Running 17 sub problems to find dead transitions.
[2024-06-01 11:24:00] [INFO ] Invariant cache hit.
At refinement iteration 0 (INCLUDED_ONLY) 0/19 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/19 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 2 (OVERLAPS) 3/22 variables, 3/6 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/22 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 4 (OVERLAPS) 20/42 variables, 22/28 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/42 variables, 0/28 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 6 (OVERLAPS) 0/42 variables, 0/28 constraints. Problems are: Problem set: 0 solved, 17 unsolved
No progress, stopping.
After SMT solving in domain Real declared 42/42 variables, and 28 constraints, problems are : Problem set: 0 solved, 17 unsolved in 286 ms.
Refiners :[Positive P Invariants (semi-flows): 6/6 constraints, State Equation: 22/22 constraints, PredecessorRefiner: 17/17 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 17 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/19 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/19 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 2 (OVERLAPS) 3/22 variables, 3/6 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/22 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 4 (OVERLAPS) 20/42 variables, 22/28 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/42 variables, 17/45 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/42 variables, 0/45 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 7 (OVERLAPS) 0/42 variables, 0/45 constraints. Problems are: Problem set: 0 solved, 17 unsolved
No progress, stopping.
After SMT solving in domain Int declared 42/42 variables, and 45 constraints, problems are : Problem set: 0 solved, 17 unsolved in 214 ms.
Refiners :[Positive P Invariants (semi-flows): 6/6 constraints, State Equation: 22/22 constraints, PredecessorRefiner: 17/17 constraints, Known Traps: 0/0 constraints]
After SMT, in 508ms problems are : Problem set: 0 solved, 17 unsolved
Search for dead transitions found 0 dead transitions in 509ms
Finished structural reductions in LTL mode , in 1 iterations and 579 ms. Remains : 22/22 places, 20/20 transitions.
Stuttering acceptance computed with spot in 148 ms :[(NOT p2), (AND (NOT p2) p1 (NOT p0)), (AND (NOT p2) p1), (AND (NOT p2) p1 (NOT p0))]
Running random walk in product with property : FMS-PT-05000-LTLFireability-14
Product exploration explored 100000 steps with 50000 reset in 55 ms.
Product exploration explored 100000 steps with 50000 reset in 75 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 : [(AND p2 (NOT p1) p0), (X p2), (X (NOT (AND (NOT p0) (NOT p1) (NOT p2)))), (X (NOT (AND (NOT p0) p1 (NOT p2)))), (X p0), (X (NOT p1)), (X (X (NOT (AND (NOT p1) (NOT p2))))), (X (X (NOT (AND p1 (NOT p2))))), (X (X p2))]
False Knowledge obtained : [(X (X p1)), (X (X (NOT p1)))]
Property proved to be true thanks to knowledge (Minato strategy)
Knowledge based reduction with 9 factoid took 15 ms. Reduced automaton from 4 states, 6 edges and 3 AP (stutter sensitive) to 1 states, 0 edges and 0 AP (stutter insensitive).
FORMULA FMS-PT-05000-LTLFireability-14 TRUE TECHNIQUES KNOWLEDGE
Treatment of property FMS-PT-05000-LTLFireability-14 finished in 889 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202405141337/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X(G(!p0)))'
Support contains 1 out of 22 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 22/22 places, 20/20 transitions.
Applied a total of 0 rules in 0 ms. Remains 22 /22 variables (removed 0) and now considering 20/20 (removed 0) transitions.
[2024-06-01 11:24:01] [INFO ] Invariant cache hit.
[2024-06-01 11:24:01] [INFO ] Implicit Places using invariants in 30 ms returned []
[2024-06-01 11:24:01] [INFO ] Invariant cache hit.
[2024-06-01 11:24:01] [INFO ] Implicit Places using invariants and state equation in 40 ms returned []
Implicit Place search using SMT with State Equation took 72 ms to find 0 implicit places.
Running 17 sub problems to find dead transitions.
[2024-06-01 11:24:01] [INFO ] Invariant cache hit.
At refinement iteration 0 (INCLUDED_ONLY) 0/19 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/19 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 2 (OVERLAPS) 3/22 variables, 3/6 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/22 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 4 (OVERLAPS) 20/42 variables, 22/28 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/42 variables, 0/28 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 6 (OVERLAPS) 0/42 variables, 0/28 constraints. Problems are: Problem set: 0 solved, 17 unsolved
No progress, stopping.
After SMT solving in domain Real declared 42/42 variables, and 28 constraints, problems are : Problem set: 0 solved, 17 unsolved in 242 ms.
Refiners :[Positive P Invariants (semi-flows): 6/6 constraints, State Equation: 22/22 constraints, PredecessorRefiner: 17/17 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 17 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/19 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/19 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 2 (OVERLAPS) 3/22 variables, 3/6 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/22 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 4 (OVERLAPS) 20/42 variables, 22/28 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/42 variables, 17/45 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/42 variables, 0/45 constraints. Problems are: Problem set: 0 solved, 17 unsolved
At refinement iteration 7 (OVERLAPS) 0/42 variables, 0/45 constraints. Problems are: Problem set: 0 solved, 17 unsolved
No progress, stopping.
After SMT solving in domain Int declared 42/42 variables, and 45 constraints, problems are : Problem set: 0 solved, 17 unsolved in 184 ms.
Refiners :[Positive P Invariants (semi-flows): 6/6 constraints, State Equation: 22/22 constraints, PredecessorRefiner: 17/17 constraints, Known Traps: 0/0 constraints]
After SMT, in 431ms problems are : Problem set: 0 solved, 17 unsolved
Search for dead transitions found 0 dead transitions in 432ms
Finished structural reductions in LTL mode , in 1 iterations and 504 ms. Remains : 22/22 places, 20/20 transitions.
Stuttering acceptance computed with spot in 79 ms :[true, p0, p0]
Running random walk in product with property : FMS-PT-05000-LTLFireability-15
Entered a terminal (fully accepting) state of product in 1 steps with 0 reset in 0 ms.
FORMULA FMS-PT-05000-LTLFireability-15 FALSE TECHNIQUES STUTTER_TEST
Treatment of property FMS-PT-05000-LTLFireability-15 finished in 596 ms.
All properties solved by simple procedures.
Total runtime 12243 ms.
ITS solved all properties within timeout

BK_STOP 1717241042285

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

+ ulimit -s 65536
+ [[ -z '' ]]
+ export LTSMIN_MEM_SIZE=8589934592
+ LTSMIN_MEM_SIZE=8589934592
+ export PYTHONPATH=/home/mcc/BenchKit/itstools/pylibs
+ PYTHONPATH=/home/mcc/BenchKit/itstools/pylibs
+ export LD_LIBRARY_PATH=/home/mcc/BenchKit/itstools/pylibs:
+ LD_LIBRARY_PATH=/home/mcc/BenchKit/itstools/pylibs:
++ sed s/.jar//
++ perl -pe 's/.*\.//g'
++ ls /home/mcc/BenchKit/bin//../reducer/bin//../../itstools//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202405141337.jar
+ VERSION=202405141337
+ echo 'Running Version 202405141337'
+ /home/mcc/BenchKit/bin//../reducer/bin//../../itstools//itstools/its-tools -pnfolder /home/mcc/execution -examination LTLFireability -timeout 360 -rebuildPNML

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="FMS-PT-05000"
export BK_EXAMINATION="LTLFireability"
export BK_TOOL="ltsminxred"
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 2-5568"
echo " Executing tool ltsminxred"
echo " Input is FMS-PT-05000, 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 r492-smll-171636266700356"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/FMS-PT-05000.tgz
mv FMS-PT-05000 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.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property LTLFireability.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -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 ;