fond
Model Checking Contest 2023
13th edition, Paris, France, April 26, 2023 (at TOOLympics II)
Execution of r167-tall-167838853100451
Last Updated
May 14, 2023

About the Execution of LoLa+red for FlexibleBarrier-PT-04b

Execution Summary
Max Memory
Used (MB)
Time wait (ms) CPU Usage (ms) I/O Wait (ms) Computed Result Execution
Status
366.315 12039.00 22409.00 425.70 TFFTFFTTFFTTFTFF normal

Execution Chart

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

Trace from the execution

Formatting '/data/fkordon/mcc2023-input.r167-tall-167838853100451.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2023-input.qcow2 cluster_size=65536 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
..................................................
=====================================================================
Generated by BenchKit 2-5348
Executing tool lolaxred
Input is FlexibleBarrier-PT-04b, examination is LTLCardinality
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r167-tall-167838853100451
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 560K
-rw-r--r-- 1 mcc users 7.4K Feb 25 12:27 CTLCardinality.txt
-rw-r--r-- 1 mcc users 79K Feb 25 12:27 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.4K Feb 25 12:27 CTLFireability.txt
-rw-r--r-- 1 mcc users 48K Feb 25 12:27 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Jan 29 11:40 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.5K Jan 29 11:40 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 3.7K Feb 25 16:06 LTLCardinality.txt
-rw-r--r-- 1 mcc users 27K Feb 25 16:06 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.2K Feb 25 16:06 LTLFireability.txt
-rw-r--r-- 1 mcc users 16K Feb 25 16:06 LTLFireability.xml
-rw-r--r-- 1 mcc users 12K Feb 25 12:28 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 132K Feb 25 12:28 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 11K Feb 25 12:28 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 99K Feb 25 12:28 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K Feb 25 16:06 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K Feb 25 16:06 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 5 18:22 equiv_col
-rw-r--r-- 1 mcc users 4 Mar 5 18:22 instance
-rw-r--r-- 1 mcc users 6 Mar 5 18:22 iscolored
-rw-r--r-- 1 mcc users 69K Mar 5 18:22 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 FlexibleBarrier-PT-04b-LTLCardinality-00
FORMULA_NAME FlexibleBarrier-PT-04b-LTLCardinality-01
FORMULA_NAME FlexibleBarrier-PT-04b-LTLCardinality-02
FORMULA_NAME FlexibleBarrier-PT-04b-LTLCardinality-03
FORMULA_NAME FlexibleBarrier-PT-04b-LTLCardinality-04
FORMULA_NAME FlexibleBarrier-PT-04b-LTLCardinality-05
FORMULA_NAME FlexibleBarrier-PT-04b-LTLCardinality-06
FORMULA_NAME FlexibleBarrier-PT-04b-LTLCardinality-07
FORMULA_NAME FlexibleBarrier-PT-04b-LTLCardinality-08
FORMULA_NAME FlexibleBarrier-PT-04b-LTLCardinality-09
FORMULA_NAME FlexibleBarrier-PT-04b-LTLCardinality-10
FORMULA_NAME FlexibleBarrier-PT-04b-LTLCardinality-11
FORMULA_NAME FlexibleBarrier-PT-04b-LTLCardinality-12
FORMULA_NAME FlexibleBarrier-PT-04b-LTLCardinality-13
FORMULA_NAME FlexibleBarrier-PT-04b-LTLCardinality-14
FORMULA_NAME FlexibleBarrier-PT-04b-LTLCardinality-15

=== Now, execution of the tool begins

BK_START 1678484359891

bash -c /home/mcc/BenchKit/BenchKit_head.sh 2> STDERR ; echo ; echo -n "BK_STOP " ; date -u +%s%3N
Invoking MCC driver with
BK_TOOL=lolaxred
BK_EXAMINATION=LTLCardinality
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=FlexibleBarrier-PT-04b
Applying reductions before tool lola
Invoking reducer
Running Version 202303021504
[2023-03-10 21:39:21] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, LTLCardinality, -timeout, 360, -rebuildPNML]
[2023-03-10 21:39:21] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2023-03-10 21:39:21] [INFO ] Load time of PNML (sax parser for PT used): 57 ms
[2023-03-10 21:39:21] [INFO ] Transformed 268 places.
[2023-03-10 21:39:21] [INFO ] Transformed 305 transitions.
[2023-03-10 21:39:21] [INFO ] Found NUPN structural information;
[2023-03-10 21:39:21] [INFO ] Parsed PT model containing 268 places and 305 transitions and 743 arcs in 121 ms.
Parsed 16 properties from file /home/mcc/execution/LTLCardinality.xml in 9 ms.
Working with output stream class java.io.PrintStream
Initial state reduction rules removed 4 formulas.
FORMULA FlexibleBarrier-PT-04b-LTLCardinality-00 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA FlexibleBarrier-PT-04b-LTLCardinality-06 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA FlexibleBarrier-PT-04b-LTLCardinality-07 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA FlexibleBarrier-PT-04b-LTLCardinality-09 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA FlexibleBarrier-PT-04b-LTLCardinality-10 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA FlexibleBarrier-PT-04b-LTLCardinality-03 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA FlexibleBarrier-PT-04b-LTLCardinality-11 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA FlexibleBarrier-PT-04b-LTLCardinality-13 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Support contains 21 out of 268 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 268/268 places, 305/305 transitions.
Discarding 72 places :
Symmetric choice reduction at 0 with 72 rule applications. Total rules 72 place count 196 transition count 233
Iterating global reduction 0 with 72 rules applied. Total rules applied 144 place count 196 transition count 233
Discarding 23 places :
Symmetric choice reduction at 0 with 23 rule applications. Total rules 167 place count 173 transition count 210
Iterating global reduction 0 with 23 rules applied. Total rules applied 190 place count 173 transition count 210
Discarding 11 places :
Symmetric choice reduction at 0 with 11 rule applications. Total rules 201 place count 162 transition count 199
Iterating global reduction 0 with 11 rules applied. Total rules applied 212 place count 162 transition count 199
Ensure Unique test removed 5 transitions
Reduce isomorphic transitions removed 5 transitions.
Iterating post reduction 0 with 5 rules applied. Total rules applied 217 place count 162 transition count 194
Applied a total of 217 rules in 56 ms. Remains 162 /268 variables (removed 106) and now considering 194/305 (removed 111) transitions.
// Phase 1: matrix 194 rows 162 cols
[2023-03-10 21:39:21] [INFO ] Computed 6 place invariants in 11 ms
[2023-03-10 21:39:22] [INFO ] Implicit Places using invariants in 397 ms returned []
[2023-03-10 21:39:22] [INFO ] Invariant cache hit.
[2023-03-10 21:39:22] [INFO ] Implicit Places using invariants and state equation in 133 ms returned []
Implicit Place search using SMT with State Equation took 556 ms to find 0 implicit places.
[2023-03-10 21:39:22] [INFO ] Invariant cache hit.
[2023-03-10 21:39:22] [INFO ] Dead Transitions using invariants and state equation in 165 ms found 0 transitions.
Starting structural reductions in LTL mode, iteration 1 : 162/268 places, 194/305 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 780 ms. Remains : 162/268 places, 194/305 transitions.
Support contains 21 out of 162 places after structural reductions.
[2023-03-10 21:39:22] [INFO ] Flatten gal took : 35 ms
[2023-03-10 21:39:22] [INFO ] Flatten gal took : 14 ms
[2023-03-10 21:39:22] [INFO ] Input system was already deterministic with 194 transitions.
Incomplete random walk after 10000 steps, including 231 resets, run finished after 239 ms. (steps per millisecond=41 ) properties (out of 14) seen :12
Incomplete Best-First random walk after 10001 steps, including 47 resets, run finished after 30 ms. (steps per millisecond=333 ) properties (out of 2) seen :0
Incomplete Best-First random walk after 10001 steps, including 42 resets, run finished after 14 ms. (steps per millisecond=714 ) properties (out of 2) seen :1
Running SMT prover for 1 properties.
[2023-03-10 21:39:23] [INFO ] Invariant cache hit.
[2023-03-10 21:39:23] [INFO ] [Real]Absence check using 6 positive place invariants in 10 ms returned sat
[2023-03-10 21:39:23] [INFO ] After 141ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
[2023-03-10 21:39:23] [INFO ] [Nat]Absence check using 6 positive place invariants in 12 ms returned sat
[2023-03-10 21:39:23] [INFO ] After 59ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
[2023-03-10 21:39:23] [INFO ] After 83ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
Attempting to minimize the solution found.
Minimization took 24 ms.
[2023-03-10 21:39:23] [INFO ] After 179ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
Parikh walk visited 0 properties in 6 ms.
Support contains 3 out of 162 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 162/162 places, 194/194 transitions.
Graph (trivial) has 143 edges and 162 vertex of which 25 / 162 are part of one of the 4 SCC in 5 ms
Free SCC test removed 21 places
Drop transitions removed 26 transitions
Reduce isomorphic transitions removed 26 transitions.
Drop transitions removed 27 transitions
Trivial Post-agglo rules discarded 27 transitions
Performed 27 trivial Post agglomeration. Transition count delta: 27
Iterating post reduction 0 with 27 rules applied. Total rules applied 28 place count 141 transition count 141
Reduce places removed 27 places and 0 transitions.
Iterating post reduction 1 with 27 rules applied. Total rules applied 55 place count 114 transition count 141
Performed 10 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 10 Pre rules applied. Total rules applied 55 place count 114 transition count 131
Deduced a syphon composed of 10 places in 4 ms
Reduce places removed 10 places and 0 transitions.
Iterating global reduction 2 with 20 rules applied. Total rules applied 75 place count 104 transition count 131
Discarding 16 places :
Symmetric choice reduction at 2 with 16 rule applications. Total rules 91 place count 88 transition count 115
Iterating global reduction 2 with 16 rules applied. Total rules applied 107 place count 88 transition count 115
Performed 2 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 2 Pre rules applied. Total rules applied 107 place count 88 transition count 113
Deduced a syphon composed of 2 places in 0 ms
Reduce places removed 2 places and 0 transitions.
Iterating global reduction 2 with 4 rules applied. Total rules applied 111 place count 86 transition count 113
Discarding 3 places :
Symmetric choice reduction at 2 with 3 rule applications. Total rules 114 place count 83 transition count 110
Iterating global reduction 2 with 3 rules applied. Total rules applied 117 place count 83 transition count 110
Ensure Unique test removed 3 transitions
Reduce isomorphic transitions removed 3 transitions.
Iterating post reduction 2 with 3 rules applied. Total rules applied 120 place count 83 transition count 107
Performed 25 Post agglomeration using F-continuation condition.Transition count delta: 25
Deduced a syphon composed of 25 places in 0 ms
Reduce places removed 25 places and 0 transitions.
Iterating global reduction 3 with 50 rules applied. Total rules applied 170 place count 58 transition count 82
Drop transitions removed 6 transitions
Reduce isomorphic transitions removed 6 transitions.
Iterating post reduction 3 with 6 rules applied. Total rules applied 176 place count 58 transition count 76
Discarding 4 places :
Symmetric choice reduction at 4 with 4 rule applications. Total rules 180 place count 54 transition count 72
Iterating global reduction 4 with 4 rules applied. Total rules applied 184 place count 54 transition count 72
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 4 with 1 rules applied. Total rules applied 185 place count 54 transition count 71
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: -17
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 5 with 2 rules applied. Total rules applied 187 place count 53 transition count 88
Free-agglomeration rule applied 21 times.
Iterating global reduction 5 with 21 rules applied. Total rules applied 208 place count 53 transition count 67
Reduce places removed 21 places and 0 transitions.
Drop transitions removed 8 transitions
Reduce isomorphic transitions removed 8 transitions.
Graph (complete) has 105 edges and 32 vertex of which 24 are kept as prefixes of interest. Removing 8 places using SCC suffix rule.1 ms
Discarding 8 places :
Also discarding 0 output transitions
Iterating post reduction 5 with 30 rules applied. Total rules applied 238 place count 24 transition count 59
Drop transitions removed 25 transitions
Ensure Unique test removed 3 transitions
Reduce isomorphic transitions removed 28 transitions.
Iterating post reduction 6 with 28 rules applied. Total rules applied 266 place count 24 transition count 31
Partial Free-agglomeration rule applied 1 times.
Drop transitions removed 1 transitions
Iterating global reduction 7 with 1 rules applied. Total rules applied 267 place count 24 transition count 31
Drop transitions removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 7 with 1 rules applied. Total rules applied 268 place count 24 transition count 30
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 8 with 1 rules applied. Total rules applied 269 place count 23 transition count 29
Reduce places removed 1 places and 0 transitions.
Graph (trivial) has 16 edges and 22 vertex of which 4 / 22 are part of one of the 2 SCC in 0 ms
Free SCC test removed 2 places
Drop transitions removed 2 transitions
Trivial Post-agglo rules discarded 2 transitions
Performed 2 trivial Post agglomeration. Transition count delta: 2
Iterating post reduction 8 with 4 rules applied. Total rules applied 273 place count 20 transition count 27
Reduce places removed 2 places and 0 transitions.
Drop transitions removed 4 transitions
Reduce isomorphic transitions removed 4 transitions.
Iterating post reduction 9 with 6 rules applied. Total rules applied 279 place count 18 transition count 23
Performed 3 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 10 with 3 Pre rules applied. Total rules applied 279 place count 18 transition count 20
Deduced a syphon composed of 3 places in 0 ms
Reduce places removed 3 places and 0 transitions.
Iterating global reduction 10 with 6 rules applied. Total rules applied 285 place count 15 transition count 20
Drop transitions removed 3 transitions
Reduce isomorphic transitions removed 3 transitions.
Iterating post reduction 10 with 3 rules applied. Total rules applied 288 place count 15 transition count 17
Performed 3 Post agglomeration using F-continuation condition.Transition count delta: 3
Deduced a syphon composed of 3 places in 0 ms
Reduce places removed 3 places and 0 transitions.
Iterating global reduction 11 with 6 rules applied. Total rules applied 294 place count 12 transition count 14
Free-agglomeration rule applied 4 times.
Iterating global reduction 11 with 4 rules applied. Total rules applied 298 place count 12 transition count 10
Reduce places removed 5 places and 0 transitions.
Drop transitions removed 3 transitions
Reduce isomorphic transitions removed 3 transitions.
Iterating post reduction 11 with 8 rules applied. Total rules applied 306 place count 7 transition count 7
Applied a total of 306 rules in 61 ms. Remains 7 /162 variables (removed 155) and now considering 7/194 (removed 187) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 61 ms. Remains : 7/162 places, 7/194 transitions.
Finished random walk after 7 steps, including 0 resets, run visited all 1 properties in 1 ms. (steps per millisecond=7 )
FORMULA FlexibleBarrier-PT-04b-LTLCardinality-02 FALSE TECHNIQUES REACHABILITY_KNOWLEDGE
Computed a total of 7 stabilizing places and 7 stable transitions
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202303021504/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X(G((F(G(p0)) U p1))))'
Support contains 5 out of 162 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 162/162 places, 194/194 transitions.
Discarding 10 places :
Symmetric choice reduction at 0 with 10 rule applications. Total rules 10 place count 152 transition count 184
Iterating global reduction 0 with 10 rules applied. Total rules applied 20 place count 152 transition count 184
Discarding 6 places :
Symmetric choice reduction at 0 with 6 rule applications. Total rules 26 place count 146 transition count 178
Iterating global reduction 0 with 6 rules applied. Total rules applied 32 place count 146 transition count 178
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 0 with 2 rules applied. Total rules applied 34 place count 146 transition count 176
Discarding 4 places :
Symmetric choice reduction at 1 with 4 rule applications. Total rules 38 place count 142 transition count 172
Iterating global reduction 1 with 4 rules applied. Total rules applied 42 place count 142 transition count 172
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 1 with 2 rules applied. Total rules applied 44 place count 142 transition count 170
Applied a total of 44 rules in 9 ms. Remains 142 /162 variables (removed 20) and now considering 170/194 (removed 24) transitions.
// Phase 1: matrix 170 rows 142 cols
[2023-03-10 21:39:23] [INFO ] Computed 6 place invariants in 6 ms
[2023-03-10 21:39:23] [INFO ] Implicit Places using invariants in 66 ms returned []
[2023-03-10 21:39:23] [INFO ] Invariant cache hit.
[2023-03-10 21:39:23] [INFO ] Implicit Places using invariants and state equation in 94 ms returned []
Implicit Place search using SMT with State Equation took 160 ms to find 0 implicit places.
[2023-03-10 21:39:23] [INFO ] Invariant cache hit.
[2023-03-10 21:39:23] [INFO ] Dead Transitions using invariants and state equation in 84 ms found 0 transitions.
Starting structural reductions in LTL mode, iteration 1 : 142/162 places, 170/194 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 254 ms. Remains : 142/162 places, 170/194 transitions.
Stuttering acceptance computed with spot in 290 ms :[(NOT p1), (NOT p1), (NOT p0), (NOT p1)]
Running random walk in product with property : FlexibleBarrier-PT-04b-LTLCardinality-01 automaton TGBA Formula[mat=[[{ cond=true, acceptance={} source=0 dest: 1}], [{ cond=true, acceptance={} source=1 dest: 1}, { cond=(NOT p1), acceptance={} source=1 dest: 2}, { cond=(NOT p1), acceptance={} source=1 dest: 3}], [{ cond=p0, acceptance={} source=2 dest: 2}, { cond=(NOT p0), acceptance={0} source=2 dest: 2}], [{ cond=(NOT p1), acceptance={} source=3 dest: 2}, { cond=(NOT p1), acceptance={0} source=3 dest: 3}]], initial=0, aps=[p1:(OR (EQ s45 0) (EQ s128 1)), p0:(AND (EQ s87 1) (OR (EQ s42 0) (EQ s135 1)))], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, no-univ-branch, stutter-sensitive], stateDesc=[null, null, null, null][false, false, false, false]]
Stuttering criterion allowed to conclude after 2499 steps with 52 reset in 20 ms.
FORMULA FlexibleBarrier-PT-04b-LTLCardinality-01 FALSE TECHNIQUES STUTTER_TEST
Treatment of property FlexibleBarrier-PT-04b-LTLCardinality-01 finished in 623 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202303021504/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(F(G(p0)))'
Support contains 1 out of 162 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 162/162 places, 194/194 transitions.
Graph (trivial) has 146 edges and 162 vertex of which 25 / 162 are part of one of the 4 SCC in 0 ms
Free SCC test removed 21 places
Ensure Unique test removed 22 transitions
Reduce isomorphic transitions removed 22 transitions.
Reduce places removed 1 places and 1 transitions.
Drop transitions removed 28 transitions
Trivial Post-agglo rules discarded 28 transitions
Performed 28 trivial Post agglomeration. Transition count delta: 28
Iterating post reduction 0 with 28 rules applied. Total rules applied 29 place count 140 transition count 143
Reduce places removed 28 places and 0 transitions.
Iterating post reduction 1 with 28 rules applied. Total rules applied 57 place count 112 transition count 143
Performed 10 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 10 Pre rules applied. Total rules applied 57 place count 112 transition count 133
Deduced a syphon composed of 10 places in 0 ms
Reduce places removed 10 places and 0 transitions.
Iterating global reduction 2 with 20 rules applied. Total rules applied 77 place count 102 transition count 133
Discarding 16 places :
Symmetric choice reduction at 2 with 16 rule applications. Total rules 93 place count 86 transition count 117
Iterating global reduction 2 with 16 rules applied. Total rules applied 109 place count 86 transition count 117
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 1 Pre rules applied. Total rules applied 109 place count 86 transition count 116
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 2 with 2 rules applied. Total rules applied 111 place count 85 transition count 116
Discarding 3 places :
Symmetric choice reduction at 2 with 3 rule applications. Total rules 114 place count 82 transition count 113
Iterating global reduction 2 with 3 rules applied. Total rules applied 117 place count 82 transition count 113
Ensure Unique test removed 3 transitions
Reduce isomorphic transitions removed 3 transitions.
Iterating post reduction 2 with 3 rules applied. Total rules applied 120 place count 82 transition count 110
Performed 25 Post agglomeration using F-continuation condition.Transition count delta: 25
Deduced a syphon composed of 25 places in 1 ms
Reduce places removed 25 places and 0 transitions.
Iterating global reduction 3 with 50 rules applied. Total rules applied 170 place count 57 transition count 85
Discarding 1 places :
Symmetric choice reduction at 3 with 1 rule applications. Total rules 171 place count 56 transition count 84
Iterating global reduction 3 with 1 rules applied. Total rules applied 172 place count 56 transition count 84
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 3 with 1 rules applied. Total rules applied 173 place count 56 transition count 83
Drop transitions removed 4 transitions
Redundant transition composition rules discarded 4 transitions
Iterating global reduction 4 with 4 rules applied. Total rules applied 177 place count 56 transition count 79
Reduce places removed 2 places and 2 transitions.
Iterating global reduction 4 with 2 rules applied. Total rules applied 179 place count 54 transition count 77
Applied a total of 179 rules in 26 ms. Remains 54 /162 variables (removed 108) and now considering 77/194 (removed 117) transitions.
[2023-03-10 21:39:24] [INFO ] Flow matrix only has 70 transitions (discarded 7 similar events)
// Phase 1: matrix 70 rows 54 cols
[2023-03-10 21:39:24] [INFO ] Computed 6 place invariants in 1 ms
[2023-03-10 21:39:24] [INFO ] Implicit Places using invariants in 40 ms returned []
[2023-03-10 21:39:24] [INFO ] Flow matrix only has 70 transitions (discarded 7 similar events)
[2023-03-10 21:39:24] [INFO ] Invariant cache hit.
[2023-03-10 21:39:24] [INFO ] Implicit Places using invariants and state equation in 56 ms returned []
Implicit Place search using SMT with State Equation took 100 ms to find 0 implicit places.
[2023-03-10 21:39:24] [INFO ] Redundant transitions in 2 ms returned []
[2023-03-10 21:39:24] [INFO ] Flow matrix only has 70 transitions (discarded 7 similar events)
[2023-03-10 21:39:24] [INFO ] Invariant cache hit.
[2023-03-10 21:39:24] [INFO ] Dead Transitions using invariants and state equation in 49 ms found 0 transitions.
Starting structural reductions in SI_LTL mode, iteration 1 : 54/162 places, 77/194 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 183 ms. Remains : 54/162 places, 77/194 transitions.
Stuttering acceptance computed with spot in 35 ms :[(NOT p0)]
Running random walk in product with property : FlexibleBarrier-PT-04b-LTLCardinality-04 automaton TGBA Formula[mat=[[{ cond=p0, acceptance={} source=0 dest: 0}, { cond=(NOT p0), acceptance={0} source=0 dest: 0}]], initial=0, aps=[p0:(EQ s19 0)], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, complete, deterministic, no-univ-branch, unambiguous, semi-deterministic, stutter-invariant], stateDesc=[null][true]]
Stuttering criterion allowed to conclude after 441 steps with 34 reset in 8 ms.
FORMULA FlexibleBarrier-PT-04b-LTLCardinality-04 FALSE TECHNIQUES STUTTER_TEST
Treatment of property FlexibleBarrier-PT-04b-LTLCardinality-04 finished in 239 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202303021504/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!((F((p0&&G(p1))) U !p0))'
Support contains 3 out of 162 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 162/162 places, 194/194 transitions.
Graph (trivial) has 145 edges and 162 vertex of which 25 / 162 are part of one of the 4 SCC in 1 ms
Free SCC test removed 21 places
Ensure Unique test removed 22 transitions
Reduce isomorphic transitions removed 22 transitions.
Reduce places removed 1 places and 1 transitions.
Drop transitions removed 27 transitions
Trivial Post-agglo rules discarded 27 transitions
Performed 27 trivial Post agglomeration. Transition count delta: 27
Iterating post reduction 0 with 27 rules applied. Total rules applied 28 place count 140 transition count 144
Reduce places removed 27 places and 0 transitions.
Iterating post reduction 1 with 27 rules applied. Total rules applied 55 place count 113 transition count 144
Performed 11 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 11 Pre rules applied. Total rules applied 55 place count 113 transition count 133
Deduced a syphon composed of 11 places in 0 ms
Reduce places removed 11 places and 0 transitions.
Iterating global reduction 2 with 22 rules applied. Total rules applied 77 place count 102 transition count 133
Discarding 15 places :
Symmetric choice reduction at 2 with 15 rule applications. Total rules 92 place count 87 transition count 118
Iterating global reduction 2 with 15 rules applied. Total rules applied 107 place count 87 transition count 118
Discarding 3 places :
Symmetric choice reduction at 2 with 3 rule applications. Total rules 110 place count 84 transition count 115
Iterating global reduction 2 with 3 rules applied. Total rules applied 113 place count 84 transition count 115
Ensure Unique test removed 3 transitions
Reduce isomorphic transitions removed 3 transitions.
Iterating post reduction 2 with 3 rules applied. Total rules applied 116 place count 84 transition count 112
Performed 25 Post agglomeration using F-continuation condition.Transition count delta: 25
Deduced a syphon composed of 25 places in 0 ms
Reduce places removed 25 places and 0 transitions.
Iterating global reduction 3 with 50 rules applied. Total rules applied 166 place count 59 transition count 87
Discarding 1 places :
Symmetric choice reduction at 3 with 1 rule applications. Total rules 167 place count 58 transition count 86
Iterating global reduction 3 with 1 rules applied. Total rules applied 168 place count 58 transition count 86
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 3 with 1 rules applied. Total rules applied 169 place count 58 transition count 85
Drop transitions removed 4 transitions
Redundant transition composition rules discarded 4 transitions
Iterating global reduction 4 with 4 rules applied. Total rules applied 173 place count 58 transition count 81
Reduce places removed 2 places and 2 transitions.
Iterating global reduction 4 with 2 rules applied. Total rules applied 175 place count 56 transition count 79
Applied a total of 175 rules in 26 ms. Remains 56 /162 variables (removed 106) and now considering 79/194 (removed 115) transitions.
[2023-03-10 21:39:24] [INFO ] Flow matrix only has 72 transitions (discarded 7 similar events)
// Phase 1: matrix 72 rows 56 cols
[2023-03-10 21:39:24] [INFO ] Computed 6 place invariants in 2 ms
[2023-03-10 21:39:24] [INFO ] Implicit Places using invariants in 41 ms returned []
[2023-03-10 21:39:24] [INFO ] Flow matrix only has 72 transitions (discarded 7 similar events)
[2023-03-10 21:39:24] [INFO ] Invariant cache hit.
[2023-03-10 21:39:24] [INFO ] Implicit Places using invariants and state equation in 54 ms returned []
Implicit Place search using SMT with State Equation took 100 ms to find 0 implicit places.
[2023-03-10 21:39:24] [INFO ] Redundant transitions in 1 ms returned []
[2023-03-10 21:39:24] [INFO ] Flow matrix only has 72 transitions (discarded 7 similar events)
[2023-03-10 21:39:24] [INFO ] Invariant cache hit.
[2023-03-10 21:39:24] [INFO ] Dead Transitions using invariants and state equation in 42 ms found 0 transitions.
Starting structural reductions in SI_LTL mode, iteration 1 : 56/162 places, 79/194 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 175 ms. Remains : 56/162 places, 79/194 transitions.
Stuttering acceptance computed with spot in 131 ms :[p0, (OR (NOT p1) (NOT p0)), (NOT p1)]
Running random walk in product with property : FlexibleBarrier-PT-04b-LTLCardinality-05 automaton TGBA Formula[mat=[[{ cond=p0, acceptance={0} source=0 dest: 0}, { cond=(AND p0 (NOT p1)), acceptance={} source=0 dest: 1}, { cond=(AND p0 p1), acceptance={} source=0 dest: 2}], [{ cond=(OR (NOT p0) (NOT p1)), acceptance={0} source=1 dest: 1}, { cond=(AND p0 p1), acceptance={} source=1 dest: 2}], [{ cond=(NOT p1), acceptance={0} source=2 dest: 1}, { cond=p1, acceptance={} source=2 dest: 2}]], initial=0, aps=[p0:(OR (EQ s21 0) (EQ s7 1)), p1:(EQ s50 1)], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, no-univ-branch, stutter-invariant], stateDesc=[null, null, null][true, true, true]]
Stuttering criterion allowed to conclude after 0 steps with 0 reset in 0 ms.
FORMULA FlexibleBarrier-PT-04b-LTLCardinality-05 FALSE TECHNIQUES STUTTER_TEST
Treatment of property FlexibleBarrier-PT-04b-LTLCardinality-05 finished in 328 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202303021504/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(F(G((p0||X(p1)))))'
Support contains 3 out of 162 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 162/162 places, 194/194 transitions.
Discarding 11 places :
Symmetric choice reduction at 0 with 11 rule applications. Total rules 11 place count 151 transition count 183
Iterating global reduction 0 with 11 rules applied. Total rules applied 22 place count 151 transition count 183
Discarding 5 places :
Symmetric choice reduction at 0 with 5 rule applications. Total rules 27 place count 146 transition count 178
Iterating global reduction 0 with 5 rules applied. Total rules applied 32 place count 146 transition count 178
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 33 place count 146 transition count 177
Discarding 4 places :
Symmetric choice reduction at 1 with 4 rule applications. Total rules 37 place count 142 transition count 173
Iterating global reduction 1 with 4 rules applied. Total rules applied 41 place count 142 transition count 173
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 1 with 2 rules applied. Total rules applied 43 place count 142 transition count 171
Applied a total of 43 rules in 18 ms. Remains 142 /162 variables (removed 20) and now considering 171/194 (removed 23) transitions.
// Phase 1: matrix 171 rows 142 cols
[2023-03-10 21:39:24] [INFO ] Computed 6 place invariants in 1 ms
[2023-03-10 21:39:24] [INFO ] Implicit Places using invariants in 48 ms returned []
[2023-03-10 21:39:24] [INFO ] Invariant cache hit.
[2023-03-10 21:39:25] [INFO ] Implicit Places using invariants and state equation in 81 ms returned []
Implicit Place search using SMT with State Equation took 131 ms to find 0 implicit places.
[2023-03-10 21:39:25] [INFO ] Invariant cache hit.
[2023-03-10 21:39:25] [INFO ] Dead Transitions using invariants and state equation in 81 ms found 0 transitions.
Starting structural reductions in LTL mode, iteration 1 : 142/162 places, 171/194 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 232 ms. Remains : 142/162 places, 171/194 transitions.
Stuttering acceptance computed with spot in 86 ms :[(AND (NOT p0) (NOT p1)), (AND (NOT p0) (NOT p1))]
Running random walk in product with property : FlexibleBarrier-PT-04b-LTLCardinality-08 automaton TGBA Formula[mat=[[{ cond=p0, acceptance={} source=0 dest: 0}, { cond=(NOT p0), acceptance={} source=0 dest: 1}], [{ cond=(AND p0 p1), acceptance={} source=1 dest: 0}, { cond=(AND p0 (NOT p1)), acceptance={0} source=1 dest: 0}, { cond=(AND (NOT p0) p1), acceptance={} source=1 dest: 1}, { cond=(AND (NOT p0) (NOT p1)), acceptance={0} source=1 dest: 1}]], initial=1, aps=[p0:(NEQ s129 1), p1:(AND (NEQ s83 0) (NEQ s10 1))], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, complete, deterministic, no-univ-branch, unambiguous, semi-deterministic, stutter-sensitive], stateDesc=[null, null][false, false]]
Product exploration explored 100000 steps with 2218 reset in 237 ms.
Product exploration explored 100000 steps with 2226 reset in 148 ms.
Computed a total of 6 stabilizing places and 6 stable transitions
Computed a total of 6 stabilizing places and 6 stable transitions
Knowledge obtained : [(AND p0 (NOT p1)), (X (AND p0 (NOT p1))), (X (NOT (AND p0 p1))), (X (NOT (AND (NOT p0) p1))), (X p0), (X (NOT (AND (NOT p0) (NOT p1)))), (X (X (AND p0 (NOT p1)))), (X (X (NOT (AND p0 p1)))), (X (X (NOT (AND (NOT p0) p1)))), (X (X p0)), (X (X (NOT (AND (NOT p0) (NOT p1)))))]
False Knowledge obtained : []
Knowledge based reduction with 11 factoid took 517 ms. Reduced automaton from 2 states, 6 edges and 2 AP (stutter sensitive) to 2 states, 6 edges and 2 AP (stutter sensitive).
Stuttering acceptance computed with spot in 89 ms :[(AND (NOT p0) (NOT p1)), (AND (NOT p0) (NOT p1))]
Incomplete random walk after 10000 steps, including 223 resets, run finished after 80 ms. (steps per millisecond=125 ) properties (out of 5) seen :4
Incomplete Best-First random walk after 10001 steps, including 42 resets, run finished after 10 ms. (steps per millisecond=1000 ) properties (out of 1) seen :0
Running SMT prover for 1 properties.
[2023-03-10 21:39:26] [INFO ] Invariant cache hit.
[2023-03-10 21:39:26] [INFO ] After 33ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
[2023-03-10 21:39:26] [INFO ] [Nat]Absence check using 6 positive place invariants in 1 ms returned sat
[2023-03-10 21:39:26] [INFO ] After 39ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
[2023-03-10 21:39:26] [INFO ] After 50ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
Attempting to minimize the solution found.
Minimization took 11 ms.
[2023-03-10 21:39:26] [INFO ] After 94ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
Finished Parikh walk after 38 steps, including 0 resets, run visited all 1 properties in 1 ms. (steps per millisecond=38 )
Parikh walk visited 1 properties in 0 ms.
Knowledge obtained : [(AND p0 (NOT p1)), (X (AND p0 (NOT p1))), (X (NOT (AND p0 p1))), (X (NOT (AND (NOT p0) p1))), (X p0), (X (NOT (AND (NOT p0) (NOT p1)))), (X (X (AND p0 (NOT p1)))), (X (X (NOT (AND p0 p1)))), (X (X (NOT (AND (NOT p0) p1)))), (X (X p0)), (X (X (NOT (AND (NOT p0) (NOT p1)))))]
False Knowledge obtained : [(F (AND (NOT p0) (NOT p1))), (F (AND (NOT p0) p1)), (F (NOT p0)), (F (NOT (AND p0 (NOT p1)))), (F (AND p0 p1))]
Knowledge based reduction with 11 factoid took 530 ms. Reduced automaton from 2 states, 6 edges and 2 AP (stutter sensitive) to 2 states, 6 edges and 2 AP (stutter sensitive).
Stuttering acceptance computed with spot in 82 ms :[(AND (NOT p0) (NOT p1)), (AND (NOT p0) (NOT p1))]
Stuttering acceptance computed with spot in 81 ms :[(AND (NOT p0) (NOT p1)), (AND (NOT p0) (NOT p1))]
Support contains 3 out of 142 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 142/142 places, 171/171 transitions.
Applied a total of 0 rules in 4 ms. Remains 142 /142 variables (removed 0) and now considering 171/171 (removed 0) transitions.
[2023-03-10 21:39:27] [INFO ] Invariant cache hit.
[2023-03-10 21:39:27] [INFO ] Implicit Places using invariants in 56 ms returned []
[2023-03-10 21:39:27] [INFO ] Invariant cache hit.
[2023-03-10 21:39:27] [INFO ] Implicit Places using invariants and state equation in 81 ms returned []
Implicit Place search using SMT with State Equation took 139 ms to find 0 implicit places.
[2023-03-10 21:39:27] [INFO ] Invariant cache hit.
[2023-03-10 21:39:27] [INFO ] Dead Transitions using invariants and state equation in 79 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 222 ms. Remains : 142/142 places, 171/171 transitions.
Computed a total of 6 stabilizing places and 6 stable transitions
Computed a total of 6 stabilizing places and 6 stable transitions
Knowledge obtained : [(AND p0 (NOT p1)), (X (AND p0 (NOT p1))), (X (NOT (AND p0 p1))), (X (NOT (AND (NOT p0) p1))), (X p0), (X (NOT (AND (NOT p0) (NOT p1)))), (X (X (AND p0 (NOT p1)))), (X (X (NOT (AND p0 p1)))), (X (X (NOT (AND (NOT p0) p1)))), (X (X p0)), (X (X (NOT (AND (NOT p0) (NOT p1)))))]
False Knowledge obtained : []
Knowledge based reduction with 11 factoid took 428 ms. Reduced automaton from 2 states, 6 edges and 2 AP (stutter sensitive) to 2 states, 6 edges and 2 AP (stutter sensitive).
Stuttering acceptance computed with spot in 85 ms :[(AND (NOT p0) (NOT p1)), (AND (NOT p0) (NOT p1))]
Incomplete random walk after 10000 steps, including 219 resets, run finished after 48 ms. (steps per millisecond=208 ) properties (out of 5) seen :4
Finished Best-First random walk after 3516 steps, including 15 resets, run visited all 1 properties in 7 ms. (steps per millisecond=502 )
Knowledge obtained : [(AND p0 (NOT p1)), (X (AND p0 (NOT p1))), (X (NOT (AND p0 p1))), (X (NOT (AND (NOT p0) p1))), (X p0), (X (NOT (AND (NOT p0) (NOT p1)))), (X (X (AND p0 (NOT p1)))), (X (X (NOT (AND p0 p1)))), (X (X (NOT (AND (NOT p0) p1)))), (X (X p0)), (X (X (NOT (AND (NOT p0) (NOT p1)))))]
False Knowledge obtained : [(F (AND (NOT p0) (NOT p1))), (F (AND (NOT p0) p1)), (F (NOT p0)), (F (NOT (AND p0 (NOT p1)))), (F (AND p0 p1))]
Knowledge based reduction with 11 factoid took 626 ms. Reduced automaton from 2 states, 6 edges and 2 AP (stutter sensitive) to 2 states, 6 edges and 2 AP (stutter sensitive).
Stuttering acceptance computed with spot in 77 ms :[(AND (NOT p0) (NOT p1)), (AND (NOT p0) (NOT p1))]
Stuttering acceptance computed with spot in 77 ms :[(AND (NOT p0) (NOT p1)), (AND (NOT p0) (NOT p1))]
Stuttering acceptance computed with spot in 86 ms :[(AND (NOT p0) (NOT p1)), (AND (NOT p0) (NOT p1))]
Product exploration explored 100000 steps with 2232 reset in 106 ms.
Product exploration explored 100000 steps with 2232 reset in 142 ms.
Support contains 3 out of 142 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 142/142 places, 171/171 transitions.
Applied a total of 0 rules in 1 ms. Remains 142 /142 variables (removed 0) and now considering 171/171 (removed 0) transitions.
[2023-03-10 21:39:29] [INFO ] Invariant cache hit.
[2023-03-10 21:39:29] [INFO ] Implicit Places using invariants in 49 ms returned []
[2023-03-10 21:39:29] [INFO ] Invariant cache hit.
[2023-03-10 21:39:29] [INFO ] Implicit Places using invariants and state equation in 75 ms returned []
Implicit Place search using SMT with State Equation took 125 ms to find 0 implicit places.
[2023-03-10 21:39:29] [INFO ] Invariant cache hit.
[2023-03-10 21:39:29] [INFO ] Dead Transitions using invariants and state equation in 69 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 198 ms. Remains : 142/142 places, 171/171 transitions.
Treatment of property FlexibleBarrier-PT-04b-LTLCardinality-08 finished in 4633 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202303021504/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!((G(p0)||G((F(p1)&&F(G(p2))))))'
Support contains 4 out of 162 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 162/162 places, 194/194 transitions.
Graph (trivial) has 141 edges and 162 vertex of which 24 / 162 are part of one of the 4 SCC in 1 ms
Free SCC test removed 20 places
Ensure Unique test removed 20 transitions
Reduce isomorphic transitions removed 20 transitions.
Reduce places removed 1 places and 1 transitions.
Drop transitions removed 26 transitions
Trivial Post-agglo rules discarded 26 transitions
Performed 26 trivial Post agglomeration. Transition count delta: 26
Iterating post reduction 0 with 26 rules applied. Total rules applied 27 place count 141 transition count 147
Reduce places removed 26 places and 0 transitions.
Performed 2 Post agglomeration using F-continuation condition.Transition count delta: 2
Iterating post reduction 1 with 28 rules applied. Total rules applied 55 place count 115 transition count 145
Reduce places removed 2 places and 0 transitions.
Iterating post reduction 2 with 2 rules applied. Total rules applied 57 place count 113 transition count 145
Performed 8 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 8 Pre rules applied. Total rules applied 57 place count 113 transition count 137
Deduced a syphon composed of 8 places in 0 ms
Reduce places removed 8 places and 0 transitions.
Iterating global reduction 3 with 16 rules applied. Total rules applied 73 place count 105 transition count 137
Discarding 15 places :
Symmetric choice reduction at 3 with 15 rule applications. Total rules 88 place count 90 transition count 122
Iterating global reduction 3 with 15 rules applied. Total rules applied 103 place count 90 transition count 122
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 1 Pre rules applied. Total rules applied 103 place count 90 transition count 121
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 105 place count 89 transition count 121
Discarding 3 places :
Symmetric choice reduction at 3 with 3 rule applications. Total rules 108 place count 86 transition count 118
Iterating global reduction 3 with 3 rules applied. Total rules applied 111 place count 86 transition count 118
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 3 with 1 rules applied. Total rules applied 112 place count 86 transition count 117
Performed 24 Post agglomeration using F-continuation condition.Transition count delta: 24
Deduced a syphon composed of 24 places in 0 ms
Reduce places removed 24 places and 0 transitions.
Iterating global reduction 4 with 48 rules applied. Total rules applied 160 place count 62 transition count 93
Discarding 1 places :
Symmetric choice reduction at 4 with 1 rule applications. Total rules 161 place count 61 transition count 92
Iterating global reduction 4 with 1 rules applied. Total rules applied 162 place count 61 transition count 92
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 4 with 1 rules applied. Total rules applied 163 place count 61 transition count 91
Drop transitions removed 4 transitions
Redundant transition composition rules discarded 4 transitions
Iterating global reduction 5 with 4 rules applied. Total rules applied 167 place count 61 transition count 87
Reduce places removed 2 places and 2 transitions.
Iterating global reduction 5 with 2 rules applied. Total rules applied 169 place count 59 transition count 85
Applied a total of 169 rules in 30 ms. Remains 59 /162 variables (removed 103) and now considering 85/194 (removed 109) transitions.
[2023-03-10 21:39:29] [INFO ] Flow matrix only has 79 transitions (discarded 6 similar events)
// Phase 1: matrix 79 rows 59 cols
[2023-03-10 21:39:29] [INFO ] Computed 6 place invariants in 0 ms
[2023-03-10 21:39:29] [INFO ] Implicit Places using invariants in 39 ms returned []
[2023-03-10 21:39:29] [INFO ] Flow matrix only has 79 transitions (discarded 6 similar events)
[2023-03-10 21:39:29] [INFO ] Invariant cache hit.
[2023-03-10 21:39:29] [INFO ] Implicit Places using invariants and state equation in 56 ms returned []
Implicit Place search using SMT with State Equation took 102 ms to find 0 implicit places.
[2023-03-10 21:39:29] [INFO ] Redundant transitions in 1 ms returned []
[2023-03-10 21:39:29] [INFO ] Flow matrix only has 79 transitions (discarded 6 similar events)
[2023-03-10 21:39:29] [INFO ] Invariant cache hit.
[2023-03-10 21:39:29] [INFO ] Dead Transitions using invariants and state equation in 44 ms found 0 transitions.
Starting structural reductions in SI_LTL mode, iteration 1 : 59/162 places, 85/194 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 182 ms. Remains : 59/162 places, 85/194 transitions.
Stuttering acceptance computed with spot in 172 ms :[(OR (AND (NOT p0) (NOT p1)) (AND (NOT p0) (NOT p2))), (NOT p1), (NOT p2), (OR (NOT p1) (NOT p2))]
Running random walk in product with property : FlexibleBarrier-PT-04b-LTLCardinality-12 automaton TGBA Formula[mat=[[{ cond=p0, acceptance={} source=0 dest: 0}, { cond=(AND (NOT p0) (NOT p1)), acceptance={} source=0 dest: 1}, { cond=(AND (NOT p0) (NOT p2)), acceptance={} source=0 dest: 2}, { cond=(NOT p0), acceptance={} source=0 dest: 3}], [{ cond=(NOT p1), acceptance={0} source=1 dest: 1}], [{ cond=p2, acceptance={} source=2 dest: 2}, { cond=(NOT p2), acceptance={0} source=2 dest: 2}], [{ cond=(NOT p1), acceptance={} source=3 dest: 1}, { cond=(NOT p2), acceptance={} source=3 dest: 2}, { cond=true, acceptance={} source=3 dest: 3}]], initial=0, aps=[p0:(EQ s14 1), p1:(EQ s21 0), p2:(AND (EQ s45 0) (EQ s0 1))], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, no-univ-branch, stutter-invariant], stateDesc=[null, null, null, null][true, true, true, true]]
Stuttering criterion allowed to conclude after 0 steps with 0 reset in 0 ms.
FORMULA FlexibleBarrier-PT-04b-LTLCardinality-12 FALSE TECHNIQUES STUTTER_TEST
Treatment of property FlexibleBarrier-PT-04b-LTLCardinality-12 finished in 369 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202303021504/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X((F(p0)&&X(X(X(F(p1)))))))'
Support contains 2 out of 162 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 162/162 places, 194/194 transitions.
Discarding 11 places :
Symmetric choice reduction at 0 with 11 rule applications. Total rules 11 place count 151 transition count 183
Iterating global reduction 0 with 11 rules applied. Total rules applied 22 place count 151 transition count 183
Discarding 7 places :
Symmetric choice reduction at 0 with 7 rule applications. Total rules 29 place count 144 transition count 176
Iterating global reduction 0 with 7 rules applied. Total rules applied 36 place count 144 transition count 176
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 0 with 2 rules applied. Total rules applied 38 place count 144 transition count 174
Discarding 5 places :
Symmetric choice reduction at 1 with 5 rule applications. Total rules 43 place count 139 transition count 169
Iterating global reduction 1 with 5 rules applied. Total rules applied 48 place count 139 transition count 169
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 1 with 2 rules applied. Total rules applied 50 place count 139 transition count 167
Applied a total of 50 rules in 9 ms. Remains 139 /162 variables (removed 23) and now considering 167/194 (removed 27) transitions.
// Phase 1: matrix 167 rows 139 cols
[2023-03-10 21:39:29] [INFO ] Computed 6 place invariants in 1 ms
[2023-03-10 21:39:29] [INFO ] Implicit Places using invariants in 48 ms returned []
[2023-03-10 21:39:29] [INFO ] Invariant cache hit.
[2023-03-10 21:39:30] [INFO ] Implicit Places using invariants and state equation in 82 ms returned []
Implicit Place search using SMT with State Equation took 131 ms to find 0 implicit places.
[2023-03-10 21:39:30] [INFO ] Invariant cache hit.
[2023-03-10 21:39:30] [INFO ] Dead Transitions using invariants and state equation in 68 ms found 0 transitions.
Starting structural reductions in LTL mode, iteration 1 : 139/162 places, 167/194 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 208 ms. Remains : 139/162 places, 167/194 transitions.
Stuttering acceptance computed with spot in 241 ms :[(OR (NOT p0) (NOT p1)), (OR (NOT p1) (NOT p0)), (NOT p0), (NOT p1), (NOT p1), (NOT p1)]
Running random walk in product with property : FlexibleBarrier-PT-04b-LTLCardinality-14 automaton TGBA Formula[mat=[[{ cond=true, acceptance={} source=0 dest: 1}], [{ cond=(NOT p0), acceptance={} source=1 dest: 2}, { cond=true, acceptance={} source=1 dest: 3}], [{ cond=(NOT p0), acceptance={} source=2 dest: 2}], [{ cond=true, acceptance={} source=3 dest: 4}], [{ cond=true, acceptance={} source=4 dest: 5}], [{ cond=(NOT p1), acceptance={} source=5 dest: 5}]], initial=0, aps=[p0:(OR (EQ s136 0) (EQ s118 1)), p1:(AND (EQ s118 0) (EQ s136 1))], nbAcceptance=0, properties=[trans-labels, explicit-labels, trans-acc, no-univ-branch, stutter-sensitive, very-weak, weak, inherently-weak], stateDesc=[null, null, null, null, null, null][false, false, false, false, false, false]]
Stuttering criterion allowed to conclude after 192 steps with 4 reset in 2 ms.
FORMULA FlexibleBarrier-PT-04b-LTLCardinality-14 FALSE TECHNIQUES STUTTER_TEST
Treatment of property FlexibleBarrier-PT-04b-LTLCardinality-14 finished in 472 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202303021504/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(F(p0))'
Support contains 1 out of 162 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 162/162 places, 194/194 transitions.
Graph (trivial) has 147 edges and 162 vertex of which 25 / 162 are part of one of the 4 SCC in 1 ms
Free SCC test removed 21 places
Ensure Unique test removed 22 transitions
Reduce isomorphic transitions removed 22 transitions.
Reduce places removed 1 places and 1 transitions.
Drop transitions removed 29 transitions
Trivial Post-agglo rules discarded 29 transitions
Performed 29 trivial Post agglomeration. Transition count delta: 29
Iterating post reduction 0 with 29 rules applied. Total rules applied 30 place count 140 transition count 142
Reduce places removed 29 places and 0 transitions.
Iterating post reduction 1 with 29 rules applied. Total rules applied 59 place count 111 transition count 142
Performed 9 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 9 Pre rules applied. Total rules applied 59 place count 111 transition count 133
Deduced a syphon composed of 9 places in 0 ms
Reduce places removed 9 places and 0 transitions.
Iterating global reduction 2 with 18 rules applied. Total rules applied 77 place count 102 transition count 133
Discarding 17 places :
Symmetric choice reduction at 2 with 17 rule applications. Total rules 94 place count 85 transition count 116
Iterating global reduction 2 with 17 rules applied. Total rules applied 111 place count 85 transition count 116
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 1 Pre rules applied. Total rules applied 111 place count 85 transition count 115
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 2 with 2 rules applied. Total rules applied 113 place count 84 transition count 115
Discarding 3 places :
Symmetric choice reduction at 2 with 3 rule applications. Total rules 116 place count 81 transition count 112
Iterating global reduction 2 with 3 rules applied. Total rules applied 119 place count 81 transition count 112
Ensure Unique test removed 3 transitions
Reduce isomorphic transitions removed 3 transitions.
Iterating post reduction 2 with 3 rules applied. Total rules applied 122 place count 81 transition count 109
Performed 25 Post agglomeration using F-continuation condition.Transition count delta: 25
Deduced a syphon composed of 25 places in 0 ms
Reduce places removed 25 places and 0 transitions.
Iterating global reduction 3 with 50 rules applied. Total rules applied 172 place count 56 transition count 84
Discarding 1 places :
Symmetric choice reduction at 3 with 1 rule applications. Total rules 173 place count 55 transition count 83
Iterating global reduction 3 with 1 rules applied. Total rules applied 174 place count 55 transition count 83
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 3 with 1 rules applied. Total rules applied 175 place count 55 transition count 82
Drop transitions removed 4 transitions
Redundant transition composition rules discarded 4 transitions
Iterating global reduction 4 with 4 rules applied. Total rules applied 179 place count 55 transition count 78
Reduce places removed 2 places and 2 transitions.
Iterating global reduction 4 with 2 rules applied. Total rules applied 181 place count 53 transition count 76
Applied a total of 181 rules in 25 ms. Remains 53 /162 variables (removed 109) and now considering 76/194 (removed 118) transitions.
[2023-03-10 21:39:30] [INFO ] Flow matrix only has 70 transitions (discarded 6 similar events)
// Phase 1: matrix 70 rows 53 cols
[2023-03-10 21:39:30] [INFO ] Computed 6 place invariants in 7 ms
[2023-03-10 21:39:30] [INFO ] Implicit Places using invariants in 46 ms returned []
[2023-03-10 21:39:30] [INFO ] Flow matrix only has 70 transitions (discarded 6 similar events)
[2023-03-10 21:39:30] [INFO ] Invariant cache hit.
[2023-03-10 21:39:30] [INFO ] Implicit Places using invariants and state equation in 49 ms returned []
Implicit Place search using SMT with State Equation took 95 ms to find 0 implicit places.
[2023-03-10 21:39:30] [INFO ] Redundant transitions in 1 ms returned []
[2023-03-10 21:39:30] [INFO ] Flow matrix only has 70 transitions (discarded 6 similar events)
[2023-03-10 21:39:30] [INFO ] Invariant cache hit.
[2023-03-10 21:39:30] [INFO ] Dead Transitions using invariants and state equation in 43 ms found 0 transitions.
Starting structural reductions in SI_LTL mode, iteration 1 : 53/162 places, 76/194 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 176 ms. Remains : 53/162 places, 76/194 transitions.
Stuttering acceptance computed with spot in 40 ms :[(NOT p0)]
Running random walk in product with property : FlexibleBarrier-PT-04b-LTLCardinality-15 automaton TGBA Formula[mat=[[{ cond=(NOT p0), acceptance={0} source=0 dest: 0}]], initial=0, aps=[p0:(EQ s3 1)], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, colored, deterministic, no-univ-branch, unambiguous, semi-deterministic, stutter-invariant, very-weak, weak, inherently-weak], stateDesc=[null][true]]
Stuttering criterion allowed to conclude after 0 steps with 0 reset in 0 ms.
FORMULA FlexibleBarrier-PT-04b-LTLCardinality-15 FALSE TECHNIQUES STUTTER_TEST
Treatment of property FlexibleBarrier-PT-04b-LTLCardinality-15 finished in 233 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202303021504/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(F(G((p0||X(p1)))))'
Found a Lengthening insensitive property : FlexibleBarrier-PT-04b-LTLCardinality-08
Stuttering acceptance computed with spot in 79 ms :[(AND (NOT p0) (NOT p1)), (AND (NOT p0) (NOT p1))]
Support contains 3 out of 162 places. Attempting structural reductions.
Starting structural reductions in LI_LTL mode, iteration 0 : 162/162 places, 194/194 transitions.
Graph (trivial) has 144 edges and 162 vertex of which 25 / 162 are part of one of the 4 SCC in 1 ms
Free SCC test removed 21 places
Ensure Unique test removed 22 transitions
Reduce isomorphic transitions removed 22 transitions.
Reduce places removed 1 places and 1 transitions.
Drop transitions removed 26 transitions
Trivial Post-agglo rules discarded 26 transitions
Performed 26 trivial Post agglomeration. Transition count delta: 26
Iterating post reduction 0 with 26 rules applied. Total rules applied 27 place count 140 transition count 145
Reduce places removed 26 places and 0 transitions.
Iterating post reduction 1 with 26 rules applied. Total rules applied 53 place count 114 transition count 145
Performed 11 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 11 Pre rules applied. Total rules applied 53 place count 114 transition count 134
Deduced a syphon composed of 11 places in 0 ms
Reduce places removed 11 places and 0 transitions.
Iterating global reduction 2 with 22 rules applied. Total rules applied 75 place count 103 transition count 134
Discarding 15 places :
Symmetric choice reduction at 2 with 15 rule applications. Total rules 90 place count 88 transition count 119
Iterating global reduction 2 with 15 rules applied. Total rules applied 105 place count 88 transition count 119
Discarding 3 places :
Symmetric choice reduction at 2 with 3 rule applications. Total rules 108 place count 85 transition count 116
Iterating global reduction 2 with 3 rules applied. Total rules applied 111 place count 85 transition count 116
Ensure Unique test removed 3 transitions
Reduce isomorphic transitions removed 3 transitions.
Iterating post reduction 2 with 3 rules applied. Total rules applied 114 place count 85 transition count 113
Performed 26 Post agglomeration using F-continuation condition.Transition count delta: 26
Deduced a syphon composed of 26 places in 0 ms
Reduce places removed 26 places and 0 transitions.
Iterating global reduction 3 with 52 rules applied. Total rules applied 166 place count 59 transition count 87
Drop transitions removed 4 transitions
Redundant transition composition rules discarded 4 transitions
Iterating global reduction 3 with 4 rules applied. Total rules applied 170 place count 59 transition count 83
Reduce places removed 2 places and 2 transitions.
Iterating global reduction 3 with 2 rules applied. Total rules applied 172 place count 57 transition count 81
Applied a total of 172 rules in 18 ms. Remains 57 /162 variables (removed 105) and now considering 81/194 (removed 113) transitions.
[2023-03-10 21:39:30] [INFO ] Flow matrix only has 74 transitions (discarded 7 similar events)
// Phase 1: matrix 74 rows 57 cols
[2023-03-10 21:39:30] [INFO ] Computed 6 place invariants in 1 ms
[2023-03-10 21:39:30] [INFO ] Implicit Places using invariants in 38 ms returned []
[2023-03-10 21:39:30] [INFO ] Flow matrix only has 74 transitions (discarded 7 similar events)
[2023-03-10 21:39:30] [INFO ] Invariant cache hit.
[2023-03-10 21:39:30] [INFO ] Implicit Places using invariants and state equation in 50 ms returned []
Implicit Place search using SMT with State Equation took 89 ms to find 0 implicit places.
[2023-03-10 21:39:30] [INFO ] Flow matrix only has 74 transitions (discarded 7 similar events)
[2023-03-10 21:39:30] [INFO ] Invariant cache hit.
[2023-03-10 21:39:30] [INFO ] Dead Transitions using invariants and state equation in 42 ms found 0 transitions.
Starting structural reductions in LI_LTL mode, iteration 1 : 57/162 places, 81/194 transitions.
Finished structural reductions in LI_LTL mode , in 1 iterations and 150 ms. Remains : 57/162 places, 81/194 transitions.
Running random walk in product with property : FlexibleBarrier-PT-04b-LTLCardinality-08 automaton TGBA Formula[mat=[[{ cond=p0, acceptance={} source=0 dest: 0}, { cond=(NOT p0), acceptance={} source=0 dest: 1}], [{ cond=(AND p0 p1), acceptance={} source=1 dest: 0}, { cond=(AND p0 (NOT p1)), acceptance={0} source=1 dest: 0}, { cond=(AND (NOT p0) p1), acceptance={} source=1 dest: 1}, { cond=(AND (NOT p0) (NOT p1)), acceptance={0} source=1 dest: 1}]], initial=1, aps=[p0:(NEQ s48 1), p1:(AND (NEQ s29 0) (NEQ s1 1))], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, complete, deterministic, no-univ-branch, unambiguous, semi-deterministic, stutter-sensitive, sl-invariant], stateDesc=[null, null][false, false]]
Stuttering criterion allowed to conclude after 7440 steps with 621 reset in 12 ms.
Treatment of property FlexibleBarrier-PT-04b-LTLCardinality-08 finished in 331 ms.
FORMULA FlexibleBarrier-PT-04b-LTLCardinality-08 FALSE TECHNIQUES LENGTHENING_INSENSITIVE
[2023-03-10 21:39:30] [INFO ] Flatten gal took : 9 ms
All properties solved without resorting to exhaustive model-checking.
Total runtime 9570 ms.
ITS solved all properties within timeout

BK_STOP 1678484371930

--------------------
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_1.0.0.202303021504.jar
+ VERSION=202303021504
+ echo 'Running Version 202303021504'
+ /home/mcc/BenchKit/bin//../reducer/bin//../../itstools//itstools/its-tools -pnfolder /home/mcc/execution -examination LTLCardinality -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="FlexibleBarrier-PT-04b"
export BK_EXAMINATION="LTLCardinality"
export BK_TOOL="lolaxred"
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 2-5348"
echo " Executing tool lolaxred"
echo " Input is FlexibleBarrier-PT-04b, examination is LTLCardinality"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r167-tall-167838853100451"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/FlexibleBarrier-PT-04b.tgz
mv FlexibleBarrier-PT-04b execution
cd execution
if [ "LTLCardinality" = "ReachabilityDeadlock" ] || [ "LTLCardinality" = "UpperBounds" ] || [ "LTLCardinality" = "QuasiLiveness" ] || [ "LTLCardinality" = "StableMarking" ] || [ "LTLCardinality" = "Liveness" ] || [ "LTLCardinality" = "OneSafe" ] || [ "LTLCardinality" = "StateSpace" ]; then
rm -f GenericPropertiesVerdict.xml
fi
pwd
ls -lh

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