Execution Chart

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

Trace from the execution

Formatting '/data/fkordon/mcc2022-input.r096-smll-165260575800148.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2022-input.qcow2 cluster_size=65536 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
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=====================================================================
Generated by BenchKit 2-4028
Executing tool itstools
Input is FlexibleBarrier-PT-22a, examination is LTLFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r096-smll-165260575800148
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 648K
-rw-r--r-- 1 mcc users 8.4K Apr 29 14:06 CTLCardinality.txt
-rw-r--r-- 1 mcc users 96K Apr 29 14:06 CTLCardinality.xml
-rw-r--r-- 1 mcc users 6.2K Apr 29 13:35 CTLFireability.txt
-rw-r--r-- 1 mcc users 60K Apr 29 13:35 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K May 10 09:33 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.5K May 10 09:33 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 3.6K May 9 07:52 LTLCardinality.txt
-rw-r--r-- 1 mcc users 25K May 9 07:52 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.2K May 9 07:52 LTLFireability.txt
-rw-r--r-- 1 mcc users 15K May 9 07:52 LTLFireability.xml
-rw-r--r-- 1 mcc users 1.7K May 9 07:52 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K May 9 07:52 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 May 10 09:33 equiv_col
-rw-r--r-- 1 mcc users 4 May 10 09:33 instance
-rw-r--r-- 1 mcc users 6 May 10 09:33 iscolored
-rw-r--r-- 1 mcc users 384K May 10 09:33 model.pnml

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

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

The expected result is a vector of booleans
BOOL_VECTOR

here is the order used to build the result vector(from text file)
FORMULA_NAME FlexibleBarrier-PT-22a-LTLFireability-00
FORMULA_NAME FlexibleBarrier-PT-22a-LTLFireability-01
FORMULA_NAME FlexibleBarrier-PT-22a-LTLFireability-02
FORMULA_NAME FlexibleBarrier-PT-22a-LTLFireability-03
FORMULA_NAME FlexibleBarrier-PT-22a-LTLFireability-04
FORMULA_NAME FlexibleBarrier-PT-22a-LTLFireability-05
FORMULA_NAME FlexibleBarrier-PT-22a-LTLFireability-06
FORMULA_NAME FlexibleBarrier-PT-22a-LTLFireability-07
FORMULA_NAME FlexibleBarrier-PT-22a-LTLFireability-08
FORMULA_NAME FlexibleBarrier-PT-22a-LTLFireability-09
FORMULA_NAME FlexibleBarrier-PT-22a-LTLFireability-10
FORMULA_NAME FlexibleBarrier-PT-22a-LTLFireability-11
FORMULA_NAME FlexibleBarrier-PT-22a-LTLFireability-12
FORMULA_NAME FlexibleBarrier-PT-22a-LTLFireability-13
FORMULA_NAME FlexibleBarrier-PT-22a-LTLFireability-14
FORMULA_NAME FlexibleBarrier-PT-22a-LTLFireability-15

=== Now, execution of the tool begins

BK_START 1652667881525

Running Version 202205111006
[2022-05-16 02:24:43] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, LTLFireability, -spotpath, /home/mcc/BenchKit/bin//..//ltlfilt, -z3path, /home/mcc/BenchKit/bin//..//z3/bin/z3, -yices2path, /home/mcc/BenchKit/bin//..//yices/bin/yices, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2022-05-16 02:24:43] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2022-05-16 02:24:44] [INFO ] Load time of PNML (sax parser for PT used): 328 ms
[2022-05-16 02:24:44] [INFO ] Transformed 267 places.
[2022-05-16 02:24:44] [INFO ] Transformed 1258 transitions.
[2022-05-16 02:24:44] [INFO ] Found NUPN structural information;
[2022-05-16 02:24:44] [INFO ] Parsed PT model containing 267 places and 1258 transitions in 589 ms.
Parsed 16 properties from file /home/mcc/execution/LTLFireability.xml in 13 ms.
Working with output stream class java.io.PrintStream
Initial state reduction rules removed 6 formulas.
Ensure Unique test removed 442 transitions
Reduce redundant transitions removed 442 transitions.
FORMULA FlexibleBarrier-PT-22a-LTLFireability-03 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA FlexibleBarrier-PT-22a-LTLFireability-04 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA FlexibleBarrier-PT-22a-LTLFireability-05 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA FlexibleBarrier-PT-22a-LTLFireability-08 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA FlexibleBarrier-PT-22a-LTLFireability-10 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA FlexibleBarrier-PT-22a-LTLFireability-15 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Support contains 27 out of 267 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 267/267 places, 816/816 transitions.
Drop transitions removed 22 transitions
Redundant transition composition rules discarded 22 transitions
Iterating global reduction 0 with 22 rules applied. Total rules applied 22 place count 267 transition count 794
Applied a total of 22 rules in 177 ms. Remains 267 /267 variables (removed 0) and now considering 794/816 (removed 22) transitions.
// Phase 1: matrix 794 rows 267 cols
[2022-05-16 02:24:44] [INFO ] Computed 24 place invariants in 29 ms
[2022-05-16 02:24:45] [INFO ] Implicit Places using invariants in 623 ms returned []
// Phase 1: matrix 794 rows 267 cols
[2022-05-16 02:24:45] [INFO ] Computed 24 place invariants in 5 ms
[2022-05-16 02:24:45] [INFO ] State equation strengthened by 573 read => feed constraints.
[2022-05-16 02:24:46] [INFO ] Implicit Places using invariants and state equation in 1008 ms returned []
Implicit Place search using SMT with State Equation took 1697 ms to find 0 implicit places.
// Phase 1: matrix 794 rows 267 cols
[2022-05-16 02:24:46] [INFO ] Computed 24 place invariants in 4 ms
[2022-05-16 02:24:47] [INFO ] Dead Transitions using invariants and state equation in 879 ms found 0 transitions.
Starting structural reductions in LTL mode, iteration 1 : 267/267 places, 794/816 transitions.
Finished structural reductions, in 1 iterations. Remains : 267/267 places, 794/816 transitions.
Support contains 27 out of 267 places after structural reductions.
[2022-05-16 02:24:47] [INFO ] Flatten gal took : 179 ms
[2022-05-16 02:24:47] [INFO ] Flatten gal took : 115 ms
[2022-05-16 02:24:48] [INFO ] Input system was already deterministic with 794 transitions.
Finished random walk after 1646 steps, including 0 resets, run visited all 18 properties in 123 ms. (steps per millisecond=13 )
Computed a total of 3 stabilizing places and 1 stable transitions
Running Spot : cd /home/mcc/execution;'/home/mcc/BenchKit/bin//..//ltl2tgba' '--check=stutter' '--hoaf=tv' '-f' '!(G(F((G(p1)||p0))))'
Support contains 5 out of 267 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 267/267 places, 794/794 transitions.
Graph (trivial) has 210 edges and 267 vertex of which 54 / 267 are part of one of the 18 SCC in 5 ms
Free SCC test removed 36 places
Ensure Unique test removed 172 transitions
Reduce isomorphic transitions removed 172 transitions.
Performed 66 Post agglomeration using F-continuation condition.Transition count delta: 66
Deduced a syphon composed of 66 places in 1 ms
Reduce places removed 66 places and 0 transitions.
Iterating global reduction 0 with 132 rules applied. Total rules applied 133 place count 165 transition count 556
Drop transitions removed 293 transitions
Redundant transition composition rules discarded 293 transitions
Iterating global reduction 0 with 293 rules applied. Total rules applied 426 place count 165 transition count 263
Partial Post-agglomeration rule applied 2 times.
Drop transitions removed 2 transitions
Iterating global reduction 0 with 2 rules applied. Total rules applied 428 place count 165 transition count 263
Discarding 2 places :
Symmetric choice reduction at 0 with 2 rule applications. Total rules 430 place count 163 transition count 261
Iterating global reduction 0 with 2 rules applied. Total rules applied 432 place count 163 transition count 261
Applied a total of 432 rules in 140 ms. Remains 163 /267 variables (removed 104) and now considering 261/794 (removed 533) transitions.
[2022-05-16 02:24:48] [INFO ] Flow matrix only has 222 transitions (discarded 39 similar events)
// Phase 1: matrix 222 rows 163 cols
[2022-05-16 02:24:48] [INFO ] Computed 24 place invariants in 1 ms
[2022-05-16 02:24:48] [INFO ] Implicit Places using invariants in 203 ms returned [162]
Discarding 1 places :
Implicit Place search using SMT only with invariants took 210 ms to find 1 implicit places.
Starting structural reductions in SI_LTL mode, iteration 1 : 162/267 places, 261/794 transitions.
Graph (trivial) has 216 edges and 162 vertex of which 54 / 162 are part of one of the 18 SCC in 1 ms
Free SCC test removed 36 places
Ensure Unique test removed 72 transitions
Reduce isomorphic transitions removed 72 transitions.
Drop transitions removed 22 transitions
Trivial Post-agglo rules discarded 22 transitions
Performed 22 trivial Post agglomeration. Transition count delta: 22
Iterating post reduction 0 with 22 rules applied. Total rules applied 23 place count 126 transition count 167
Reduce places removed 22 places and 0 transitions.
Iterating post reduction 1 with 22 rules applied. Total rules applied 45 place count 104 transition count 167
Performed 22 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 22 Pre rules applied. Total rules applied 45 place count 104 transition count 145
Deduced a syphon composed of 22 places in 1 ms
Reduce places removed 22 places and 0 transitions.
Iterating global reduction 2 with 44 rules applied. Total rules applied 89 place count 82 transition count 145
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 2 with 52 rules applied. Total rules applied 141 place count 56 transition count 119
Drop transitions removed 22 transitions
Redundant transition composition rules discarded 22 transitions
Iterating global reduction 2 with 22 rules applied. Total rules applied 163 place count 56 transition count 97
Applied a total of 163 rules in 45 ms. Remains 56 /162 variables (removed 106) and now considering 97/261 (removed 164) transitions.
[2022-05-16 02:24:48] [INFO ] Flow matrix only has 72 transitions (discarded 25 similar events)
// Phase 1: matrix 72 rows 56 cols
[2022-05-16 02:24:48] [INFO ] Computed 23 place invariants in 1 ms
[2022-05-16 02:24:48] [INFO ] Implicit Places using invariants in 54 ms returned []
[2022-05-16 02:24:48] [INFO ] Flow matrix only has 72 transitions (discarded 25 similar events)
// Phase 1: matrix 72 rows 56 cols
[2022-05-16 02:24:48] [INFO ] Computed 23 place invariants in 8 ms
[2022-05-16 02:24:49] [INFO ] State equation strengthened by 35 read => feed constraints.
[2022-05-16 02:24:49] [INFO ] Implicit Places using invariants and state equation in 108 ms returned []
Implicit Place search using SMT with State Equation took 166 ms to find 0 implicit places.
Starting structural reductions in SI_LTL mode, iteration 2 : 56/267 places, 97/794 transitions.
Finished structural reductions, in 2 iterations. Remains : 56/267 places, 97/794 transitions.
Stuttering acceptance computed with spot in 320 ms :[(AND (NOT p1) (NOT p0)), (AND (NOT p1) (NOT p0))]
Running random walk in product with property : FlexibleBarrier-PT-22a-LTLFireability-00 automaton TGBA Formula[mat=[[{ cond=true, acceptance={} source=0 dest: 0}, { cond=(AND (NOT p1) (NOT p0)), acceptance={} source=0 dest: 1}], [{ cond=(AND p1 (NOT p0)), acceptance={} source=1 dest: 1}, { cond=(AND (NOT p1) (NOT p0)), acceptance={0} source=1 dest: 1}]], initial=0, aps=[p1:(OR (NEQ s40 1) (NEQ s51 1) (NEQ s55 1)), p0:(OR (NEQ s19 1) (NEQ s32 1) (NEQ s55 1))], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, no-univ-branch, stutter-invariant], stateDesc=[null, null][true, true]]
Stuttering criterion allowed to conclude after 34 steps with 0 reset in 3 ms.
FORMULA FlexibleBarrier-PT-22a-LTLFireability-00 FALSE TECHNIQUES STUTTER_TEST
Treatment of property FlexibleBarrier-PT-22a-LTLFireability-00 finished in 970 ms.
Running Spot : cd /home/mcc/execution;'/home/mcc/BenchKit/bin//..//ltl2tgba' '--check=stutter' '--hoaf=tv' '-f' '!(F(G(X((X(F(p0))||p1)))))'
Support contains 4 out of 267 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 267/267 places, 794/794 transitions.
Graph (trivial) has 214 edges and 267 vertex of which 60 / 267 are part of one of the 20 SCC in 1 ms
Free SCC test removed 40 places
Ensure Unique test removed 211 transitions
Reduce isomorphic transitions removed 211 transitions.
Performed 66 Post agglomeration using F-continuation condition.Transition count delta: 66
Deduced a syphon composed of 66 places in 1 ms
Reduce places removed 66 places and 0 transitions.
Iterating global reduction 0 with 132 rules applied. Total rules applied 133 place count 161 transition count 517
Drop transitions removed 268 transitions
Redundant transition composition rules discarded 268 transitions
Iterating global reduction 0 with 268 rules applied. Total rules applied 401 place count 161 transition count 249
Partial Post-agglomeration rule applied 1 times.
Drop transitions removed 1 transitions
Iterating global reduction 0 with 1 rules applied. Total rules applied 402 place count 161 transition count 249
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 403 place count 160 transition count 248
Iterating global reduction 0 with 1 rules applied. Total rules applied 404 place count 160 transition count 248
Applied a total of 404 rules in 72 ms. Remains 160 /267 variables (removed 107) and now considering 248/794 (removed 546) transitions.
[2022-05-16 02:24:49] [INFO ] Flow matrix only has 207 transitions (discarded 41 similar events)
// Phase 1: matrix 207 rows 160 cols
[2022-05-16 02:24:49] [INFO ] Computed 24 place invariants in 2 ms
[2022-05-16 02:24:49] [INFO ] Implicit Places using invariants in 190 ms returned [159]
Discarding 1 places :
Implicit Place search using SMT only with invariants took 192 ms to find 1 implicit places.
Starting structural reductions in SI_LTL mode, iteration 1 : 159/267 places, 248/794 transitions.
Graph (trivial) has 216 edges and 159 vertex of which 60 / 159 are part of one of the 20 SCC in 0 ms
Free SCC test removed 40 places
Ensure Unique test removed 80 transitions
Reduce isomorphic transitions removed 80 transitions.
Drop transitions removed 21 transitions
Trivial Post-agglo rules discarded 21 transitions
Performed 21 trivial Post agglomeration. Transition count delta: 21
Iterating post reduction 0 with 21 rules applied. Total rules applied 22 place count 119 transition count 147
Reduce places removed 21 places and 0 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Iterating post reduction 1 with 22 rules applied. Total rules applied 44 place count 98 transition count 146
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 2 with 1 rules applied. Total rules applied 45 place count 97 transition count 146
Performed 22 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 22 Pre rules applied. Total rules applied 45 place count 97 transition count 124
Deduced a syphon composed of 22 places in 0 ms
Reduce places removed 22 places and 0 transitions.
Iterating global reduction 3 with 44 rules applied. Total rules applied 89 place count 75 transition count 124
Performed 23 Post agglomeration using F-continuation condition.Transition count delta: 23
Deduced a syphon composed of 23 places in 0 ms
Reduce places removed 23 places and 0 transitions.
Iterating global reduction 3 with 46 rules applied. Total rules applied 135 place count 52 transition count 101
Drop transitions removed 22 transitions
Redundant transition composition rules discarded 22 transitions
Iterating global reduction 3 with 22 rules applied. Total rules applied 157 place count 52 transition count 79
Applied a total of 157 rules in 22 ms. Remains 52 /159 variables (removed 107) and now considering 79/248 (removed 169) transitions.
[2022-05-16 02:24:49] [INFO ] Flow matrix only has 56 transitions (discarded 23 similar events)
// Phase 1: matrix 56 rows 52 cols
[2022-05-16 02:24:49] [INFO ] Computed 23 place invariants in 1 ms
[2022-05-16 02:24:49] [INFO ] Implicit Places using invariants in 42 ms returned []
[2022-05-16 02:24:49] [INFO ] Flow matrix only has 56 transitions (discarded 23 similar events)
// Phase 1: matrix 56 rows 52 cols
[2022-05-16 02:24:49] [INFO ] Computed 23 place invariants in 1 ms
[2022-05-16 02:24:49] [INFO ] State equation strengthened by 25 read => feed constraints.
[2022-05-16 02:24:49] [INFO ] Implicit Places using invariants and state equation in 80 ms returned []
Implicit Place search using SMT with State Equation took 126 ms to find 0 implicit places.
Starting structural reductions in SI_LTL mode, iteration 2 : 52/267 places, 79/794 transitions.
Finished structural reductions, in 2 iterations. Remains : 52/267 places, 79/794 transitions.
Stuttering acceptance computed with spot in 198 ms :[(AND (NOT p1) (NOT p0)), (AND (NOT p1) (NOT p0))]
Running random walk in product with property : FlexibleBarrier-PT-22a-LTLFireability-01 automaton TGBA Formula[mat=[[{ cond=true, acceptance={} source=0 dest: 0}, { cond=(AND (NOT p1) (NOT p0)), acceptance={} source=0 dest: 1}], [{ cond=(AND p1 (NOT p0)), acceptance={} source=1 dest: 1}, { cond=(AND (NOT p1) (NOT p0)), acceptance={0} source=1 dest: 1}]], initial=0, aps=[p1:(AND (EQ s29 1) (EQ s47 1) (EQ s51 1)), p0:(EQ s42 1)], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, no-univ-branch, stutter-invariant], stateDesc=[null, null][true, true]]
Stuttering criterion allowed to conclude after 1 steps with 0 reset in 0 ms.
FORMULA FlexibleBarrier-PT-22a-LTLFireability-01 FALSE TECHNIQUES STUTTER_TEST
Treatment of property FlexibleBarrier-PT-22a-LTLFireability-01 finished in 631 ms.
Running Spot : cd /home/mcc/execution;'/home/mcc/BenchKit/bin//..//ltl2tgba' '--check=stutter' '--hoaf=tv' '-f' '!(G(F(p0)))'
Support contains 4 out of 267 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 267/267 places, 794/794 transitions.
Graph (trivial) has 213 edges and 267 vertex of which 60 / 267 are part of one of the 20 SCC in 1 ms
Free SCC test removed 40 places
Ensure Unique test removed 211 transitions
Reduce isomorphic transitions removed 211 transitions.
Performed 65 Post agglomeration using F-continuation condition.Transition count delta: 65
Deduced a syphon composed of 65 places in 1 ms
Reduce places removed 65 places and 0 transitions.
Iterating global reduction 0 with 130 rules applied. Total rules applied 131 place count 162 transition count 518
Drop transitions removed 268 transitions
Redundant transition composition rules discarded 268 transitions
Iterating global reduction 0 with 268 rules applied. Total rules applied 399 place count 162 transition count 250
Partial Post-agglomeration rule applied 1 times.
Drop transitions removed 1 transitions
Iterating global reduction 0 with 1 rules applied. Total rules applied 400 place count 162 transition count 250
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 401 place count 161 transition count 249
Iterating global reduction 0 with 1 rules applied. Total rules applied 402 place count 161 transition count 249
Applied a total of 402 rules in 56 ms. Remains 161 /267 variables (removed 106) and now considering 249/794 (removed 545) transitions.
[2022-05-16 02:24:50] [INFO ] Flow matrix only has 208 transitions (discarded 41 similar events)
// Phase 1: matrix 208 rows 161 cols
[2022-05-16 02:24:50] [INFO ] Computed 24 place invariants in 1 ms
[2022-05-16 02:24:50] [INFO ] Implicit Places using invariants in 184 ms returned [160]
Discarding 1 places :
Implicit Place search using SMT only with invariants took 187 ms to find 1 implicit places.
Starting structural reductions in SI_LTL mode, iteration 1 : 160/267 places, 249/794 transitions.
Graph (trivial) has 216 edges and 160 vertex of which 57 / 160 are part of one of the 19 SCC in 1 ms
Free SCC test removed 38 places
Ensure Unique test removed 76 transitions
Reduce isomorphic transitions removed 76 transitions.
Drop transitions removed 22 transitions
Trivial Post-agglo rules discarded 22 transitions
Performed 22 trivial Post agglomeration. Transition count delta: 22
Iterating post reduction 0 with 22 rules applied. Total rules applied 23 place count 122 transition count 151
Reduce places removed 22 places and 0 transitions.
Iterating post reduction 1 with 22 rules applied. Total rules applied 45 place count 100 transition count 151
Performed 22 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 22 Pre rules applied. Total rules applied 45 place count 100 transition count 129
Deduced a syphon composed of 22 places in 1 ms
Reduce places removed 22 places and 0 transitions.
Iterating global reduction 2 with 44 rules applied. Total rules applied 89 place count 78 transition count 129
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 2 with 48 rules applied. Total rules applied 137 place count 54 transition count 105
Drop transitions removed 21 transitions
Redundant transition composition rules discarded 21 transitions
Iterating global reduction 2 with 21 rules applied. Total rules applied 158 place count 54 transition count 84
Applied a total of 158 rules in 20 ms. Remains 54 /160 variables (removed 106) and now considering 84/249 (removed 165) transitions.
[2022-05-16 02:24:50] [INFO ] Flow matrix only has 59 transitions (discarded 25 similar events)
// Phase 1: matrix 59 rows 54 cols
[2022-05-16 02:24:50] [INFO ] Computed 23 place invariants in 0 ms
[2022-05-16 02:24:50] [INFO ] Implicit Places using invariants in 47 ms returned []
[2022-05-16 02:24:50] [INFO ] Flow matrix only has 59 transitions (discarded 25 similar events)
// Phase 1: matrix 59 rows 54 cols
[2022-05-16 02:24:50] [INFO ] Computed 23 place invariants in 0 ms
[2022-05-16 02:24:50] [INFO ] State equation strengthened by 25 read => feed constraints.
[2022-05-16 02:24:50] [INFO ] Implicit Places using invariants and state equation in 88 ms returned []
Implicit Place search using SMT with State Equation took 142 ms to find 0 implicit places.
Starting structural reductions in SI_LTL mode, iteration 2 : 54/267 places, 84/794 transitions.
Finished structural reductions, in 2 iterations. Remains : 54/267 places, 84/794 transitions.
Stuttering acceptance computed with spot in 74 ms :[(NOT p0), (NOT p0)]
Running random walk in product with property : FlexibleBarrier-PT-22a-LTLFireability-02 automaton TGBA Formula[mat=[[{ cond=true, acceptance={} source=0 dest: 0}, { cond=(NOT p0), acceptance={} source=0 dest: 1}], [{ cond=(NOT p0), acceptance={0} source=1 dest: 1}]], initial=0, aps=[p0:(OR (NEQ s23 1) (NEQ s28 1) (NEQ s53 1) (EQ s46 1))], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, no-univ-branch, stutter-invariant, very-weak, weak, inherently-weak], stateDesc=[null, null][true, true]]
Stuttering criterion allowed to conclude after 2 steps with 0 reset in 0 ms.
FORMULA FlexibleBarrier-PT-22a-LTLFireability-02 FALSE TECHNIQUES STUTTER_TEST
Treatment of property FlexibleBarrier-PT-22a-LTLFireability-02 finished in 494 ms.
Running Spot : cd /home/mcc/execution;'/home/mcc/BenchKit/bin//..//ltl2tgba' '--check=stutter' '--hoaf=tv' '-f' '!(((F(p0)&&(p1 U G(!p0))) U G(p2)))'
Support contains 6 out of 267 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 267/267 places, 794/794 transitions.
Graph (trivial) has 207 edges and 267 vertex of which 51 / 267 are part of one of the 17 SCC in 1 ms
Free SCC test removed 34 places
Ensure Unique test removed 154 transitions
Reduce isomorphic transitions removed 154 transitions.
Performed 65 Post agglomeration using F-continuation condition.Transition count delta: 65
Deduced a syphon composed of 65 places in 1 ms
Reduce places removed 65 places and 0 transitions.
Iterating global reduction 0 with 130 rules applied. Total rules applied 131 place count 168 transition count 575
Drop transitions removed 301 transitions
Redundant transition composition rules discarded 301 transitions
Iterating global reduction 0 with 301 rules applied. Total rules applied 432 place count 168 transition count 274
Partial Post-agglomeration rule applied 3 times.
Drop transitions removed 3 transitions
Iterating global reduction 0 with 3 rules applied. Total rules applied 435 place count 168 transition count 274
Discarding 3 places :
Symmetric choice reduction at 0 with 3 rule applications. Total rules 438 place count 165 transition count 271
Iterating global reduction 0 with 3 rules applied. Total rules applied 441 place count 165 transition count 271
Applied a total of 441 rules in 49 ms. Remains 165 /267 variables (removed 102) and now considering 271/794 (removed 523) transitions.
[2022-05-16 02:24:50] [INFO ] Flow matrix only has 233 transitions (discarded 38 similar events)
// Phase 1: matrix 233 rows 165 cols
[2022-05-16 02:24:50] [INFO ] Computed 24 place invariants in 1 ms
[2022-05-16 02:24:50] [INFO ] Implicit Places using invariants in 186 ms returned [164]
Discarding 1 places :
Implicit Place search using SMT only with invariants took 189 ms to find 1 implicit places.
Starting structural reductions in SI_LTL mode, iteration 1 : 164/267 places, 271/794 transitions.
Graph (trivial) has 216 edges and 164 vertex of which 51 / 164 are part of one of the 17 SCC in 0 ms
Free SCC test removed 34 places
Ensure Unique test removed 68 transitions
Reduce isomorphic transitions removed 68 transitions.
Drop transitions removed 22 transitions
Trivial Post-agglo rules discarded 22 transitions
Performed 22 trivial Post agglomeration. Transition count delta: 22
Iterating post reduction 0 with 22 rules applied. Total rules applied 23 place count 130 transition count 181
Reduce places removed 22 places and 0 transitions.
Iterating post reduction 1 with 22 rules applied. Total rules applied 45 place count 108 transition count 181
Performed 22 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 22 Pre rules applied. Total rules applied 45 place count 108 transition count 159
Deduced a syphon composed of 22 places in 0 ms
Reduce places removed 22 places and 0 transitions.
Iterating global reduction 2 with 44 rules applied. Total rules applied 89 place count 86 transition count 159
Performed 27 Post agglomeration using F-continuation condition.Transition count delta: 27
Deduced a syphon composed of 27 places in 0 ms
Reduce places removed 27 places and 0 transitions.
Iterating global reduction 2 with 54 rules applied. Total rules applied 143 place count 59 transition count 132
Drop transitions removed 22 transitions
Redundant transition composition rules discarded 22 transitions
Iterating global reduction 2 with 22 rules applied. Total rules applied 165 place count 59 transition count 110
Applied a total of 165 rules in 16 ms. Remains 59 /164 variables (removed 105) and now considering 110/271 (removed 161) transitions.
[2022-05-16 02:24:50] [INFO ] Flow matrix only has 84 transitions (discarded 26 similar events)
// Phase 1: matrix 84 rows 59 cols
[2022-05-16 02:24:50] [INFO ] Computed 23 place invariants in 1 ms
[2022-05-16 02:24:50] [INFO ] Implicit Places using invariants in 46 ms returned []
[2022-05-16 02:24:50] [INFO ] Flow matrix only has 84 transitions (discarded 26 similar events)
// Phase 1: matrix 84 rows 59 cols
[2022-05-16 02:24:50] [INFO ] Computed 23 place invariants in 1 ms
[2022-05-16 02:24:50] [INFO ] State equation strengthened by 43 read => feed constraints.
[2022-05-16 02:24:50] [INFO ] Implicit Places using invariants and state equation in 121 ms returned []
Implicit Place search using SMT with State Equation took 170 ms to find 0 implicit places.
Starting structural reductions in SI_LTL mode, iteration 2 : 59/267 places, 110/794 transitions.
Finished structural reductions, in 2 iterations. Remains : 59/267 places, 110/794 transitions.
Stuttering acceptance computed with spot in 308 ms :[(NOT p2), true, p0, (NOT p0), (NOT p2), p0, (AND p0 (NOT p2) p1)]
Running random walk in product with property : FlexibleBarrier-PT-22a-LTLFireability-06 automaton TGBA Formula[mat=[[{ cond=(OR (AND p2 (NOT p0)) (AND p2 p1)), acceptance={} source=0 dest: 0}, { cond=(OR (AND (NOT p2) (NOT p0)) (AND (NOT p2) p1)), acceptance={0} source=0 dest: 0}, { cond=(AND (NOT p2) p0 (NOT p1)), acceptance={} source=0 dest: 1}, { cond=(AND (NOT p2) (NOT p0) (NOT p1)), acceptance={} source=0 dest: 2}, { cond=(AND (NOT p2) (NOT p0)), acceptance={} source=0 dest: 3}, { cond=(AND p2 p0 (NOT p1)), acceptance={} source=0 dest: 4}, { cond=(AND (NOT p2) p1), acceptance={} source=0 dest: 5}, { cond=(AND p2 (NOT p0) (NOT p1)), acceptance={} source=0 dest: 6}], [{ cond=true, acceptance={0} source=1 dest: 1}], [{ cond=p0, acceptance={} source=2 dest: 1}, { cond=(NOT p0), acceptance={} source=2 dest: 2}], [{ cond=(NOT p0), acceptance={0} source=3 dest: 3}], [{ cond=(NOT p2), acceptance={} source=4 dest: 1}, { cond=p2, acceptance={} source=4 dest: 4}], [{ cond=(AND p0 (NOT p1)), acceptance={} source=5 dest: 1}, { cond=(AND (NOT p0) (NOT p1)), acceptance={} source=5 dest: 2}, { cond=(AND (NOT p0) p1), acceptance={} source=5 dest: 5}, { cond=(AND p0 p1), acceptance={0} source=5 dest: 5}], [{ cond=(AND (NOT p2) p0 p1), acceptance={} source=6 dest: 1}, { cond=(AND (NOT p2) (NOT p0) p1), acceptance={} source=6 dest: 2}, { cond=(AND p2 p0 p1), acceptance={} source=6 dest: 4}, { cond=(AND p2 (NOT p0) p1), acceptance={} source=6 dest: 6}]], initial=0, aps=[p2:(AND (EQ s7 1) (EQ s54 1) (EQ s58 1)), p0:(AND (EQ s14 1) (EQ s42 1) (EQ s58 1)), p1:(AND (EQ s19 1) (EQ s42 1) (EQ s58 1))], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, no-univ-branch, stutter-invariant], stateDesc=[null, null, null, null, null, null, null][true, true, true, true, true, true, true]]
Stuttering criterion allowed to conclude after 1 steps with 0 reset in 0 ms.
FORMULA FlexibleBarrier-PT-22a-LTLFireability-06 FALSE TECHNIQUES STUTTER_TEST
Treatment of property FlexibleBarrier-PT-22a-LTLFireability-06 finished in 760 ms.
Running Spot : cd /home/mcc/execution;'/home/mcc/BenchKit/bin//..//ltl2tgba' '--check=stutter' '--hoaf=tv' '-f' '!(((G(p0) U p1) U (X(p2)&&(X(F(p3))||p1))))'
Support contains 8 out of 267 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 267/267 places, 794/794 transitions.
Applied a total of 0 rules in 6 ms. Remains 267 /267 variables (removed 0) and now considering 794/794 (removed 0) transitions.
// Phase 1: matrix 794 rows 267 cols
[2022-05-16 02:24:51] [INFO ] Computed 24 place invariants in 3 ms
[2022-05-16 02:24:51] [INFO ] Implicit Places using invariants in 210 ms returned []
// Phase 1: matrix 794 rows 267 cols
[2022-05-16 02:24:51] [INFO ] Computed 24 place invariants in 3 ms
[2022-05-16 02:24:51] [INFO ] State equation strengthened by 573 read => feed constraints.
[2022-05-16 02:24:52] [INFO ] Implicit Places using invariants and state equation in 828 ms returned []
Implicit Place search using SMT with State Equation took 1046 ms to find 0 implicit places.
// Phase 1: matrix 794 rows 267 cols
[2022-05-16 02:24:52] [INFO ] Computed 24 place invariants in 5 ms
[2022-05-16 02:24:53] [INFO ] Dead Transitions using invariants and state equation in 692 ms found 0 transitions.
Finished structural reductions, in 1 iterations. Remains : 267/267 places, 794/794 transitions.
Stuttering acceptance computed with spot in 499 ms :[(OR (NOT p2) (AND (NOT p1) (NOT p3))), (NOT p2), (NOT p3), (OR (AND (NOT p0) (NOT p2)) (AND (NOT p1) (NOT p2))), (NOT p2), (AND (NOT p3) (NOT p0)), (OR (AND (NOT p1) (NOT p3)) (AND (NOT p2) (NOT p3))), true, (NOT p0), (NOT p1), (AND (NOT p2) (NOT p3))]
Running random walk in product with property : FlexibleBarrier-PT-22a-LTLFireability-07 automaton TGBA Formula[mat=[[{ cond=(AND (NOT p1) (NOT p0)), acceptance={} source=0 dest: 1}, { cond=(AND (NOT p1) (NOT p0)), acceptance={} source=0 dest: 2}, { cond=(AND (NOT p1) p0), acceptance={} source=0 dest: 3}, { cond=(OR p1 p0), acceptance={} source=0 dest: 4}, { cond=(AND (NOT p1) p0), acceptance={} source=0 dest: 5}, { cond=(AND (NOT p1) p0), acceptance={} source=0 dest: 6}], [{ cond=(NOT p2), acceptance={} source=1 dest: 7}], [{ cond=(NOT p3), acceptance={0} source=2 dest: 2}], [{ cond=(AND (NOT p0) (NOT p2)), acceptance={} source=3 dest: 7}, { cond=(AND p0 (NOT p2)), acceptance={} source=3 dest: 8}, { cond=(AND (NOT p1) p0 (NOT p2)), acceptance={} source=3 dest: 9}], [{ cond=(AND (NOT p1) (NOT p0) (NOT p2)), acceptance={0} source=4 dest: 1}, { cond=(AND (NOT p1) (NOT p0) (NOT p2)), acceptance={0} source=4 dest: 2}, { cond=(AND (NOT p1) p0 (NOT p2)), acceptance={0} source=4 dest: 3}, { cond=(OR (AND p1 (NOT p2)) (AND p0 (NOT p2))), acceptance={0} source=4 dest: 4}, { cond=(AND (NOT p1) p0 (NOT p2)), acceptance={0} source=4 dest: 5}, { cond=(AND (NOT p1) p0 (NOT p2)), acceptance={0} source=4 dest: 6}], [{ cond=(AND (NOT p0) (NOT p3)), acceptance={} source=5 dest: 2}, { cond=(AND p0 (NOT p3)), acceptance={} source=5 dest: 5}], [{ cond=(AND (NOT p1) (NOT p0) (NOT p3)), acceptance={0} source=6 dest: 2}, { cond=(AND (NOT p1) p0 (NOT p3)), acceptance={0} source=6 dest: 5}, { cond=(AND (NOT p1) p0 (NOT p3)), acceptance={0} source=6 dest: 6}, { cond=(AND p1 (NOT p3)), acceptance={0} source=6 dest: 10}], [{ cond=true, acceptance={0} source=7 dest: 7}], [{ cond=(NOT p0), acceptance={} source=8 dest: 7}, { cond=p0, acceptance={} source=8 dest: 8}], [{ cond=(AND (NOT p1) (NOT p0)), acceptance={0} source=9 dest: 7}, { cond=(AND (NOT p1) p0), acceptance={0} source=9 dest: 8}, { cond=(AND (NOT p1) p0), acceptance={0} source=9 dest: 9}], [{ cond=(AND (NOT p1) (NOT p0) (NOT p2) (NOT p3)), acceptance={0} source=10 dest: 2}, { cond=(AND (NOT p1) p0 (NOT p2) (NOT p3)), acceptance={0} source=10 dest: 5}, { cond=(AND (NOT p1) p0 (NOT p2) (NOT p3)), acceptance={0} source=10 dest: 6}, { cond=(AND p1 (NOT p2) (NOT p3)), acceptance={0} source=10 dest: 10}]], initial=0, aps=[p1:(EQ s8 1), p0:(AND (EQ s29 1) (EQ s266 1)), p2:(AND (EQ s72 1) (EQ s179 1) (EQ s265 1)), p3:(AND (EQ s23 1) (EQ s108 1) (EQ s265 1))], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, no-univ-branch, stutter-sensitive, weak, inherently-weak], stateDesc=[null, null, null, null, null, null, null, null, null, null, null][false, false, false, false, false, false, false, false, false, false, false]]
Entered a terminal (fully accepting) state of product in 35 steps with 1 reset in 2 ms.
FORMULA FlexibleBarrier-PT-22a-LTLFireability-07 FALSE TECHNIQUES STUTTER_TEST
Treatment of property FlexibleBarrier-PT-22a-LTLFireability-07 finished in 2282 ms.
Running Spot : cd /home/mcc/execution;'/home/mcc/BenchKit/bin//..//ltl2tgba' '--check=stutter' '--hoaf=tv' '-f' '!(G(X(p0)))'
Support contains 3 out of 267 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 267/267 places, 794/794 transitions.
Applied a total of 0 rules in 4 ms. Remains 267 /267 variables (removed 0) and now considering 794/794 (removed 0) transitions.
// Phase 1: matrix 794 rows 267 cols
[2022-05-16 02:24:53] [INFO ] Computed 24 place invariants in 3 ms
[2022-05-16 02:24:53] [INFO ] Implicit Places using invariants in 326 ms returned [266]
Discarding 1 places :
Implicit Place search using SMT only with invariants took 328 ms to find 1 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 266/267 places, 794/794 transitions.
Applied a total of 0 rules in 7 ms. Remains 266 /266 variables (removed 0) and now considering 794/794 (removed 0) transitions.
Finished structural reductions, in 2 iterations. Remains : 266/267 places, 794/794 transitions.
Stuttering acceptance computed with spot in 113 ms :[true, (NOT p0), (NOT p0)]
Running random walk in product with property : FlexibleBarrier-PT-22a-LTLFireability-09 automaton TGBA Formula[mat=[[{ cond=true, acceptance={0} source=0 dest: 0}], [{ cond=true, acceptance={} source=1 dest: 2}], [{ cond=(NOT p0), acceptance={} source=2 dest: 0}, { cond=p0, acceptance={} source=2 dest: 2}]], initial=1, aps=[p0:(AND (EQ s167 1) (EQ s240 1) (EQ s265 1))], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, complete, deterministic, no-univ-branch, unambiguous, semi-deterministic, stutter-sensitive, terminal, very-weak, weak, inherently-weak], stateDesc=[null, null, null][false, false, false]]
Entered a terminal (fully accepting) state of product in 1 steps with 0 reset in 1 ms.
FORMULA FlexibleBarrier-PT-22a-LTLFireability-09 FALSE TECHNIQUES STUTTER_TEST
Treatment of property FlexibleBarrier-PT-22a-LTLFireability-09 finished in 474 ms.
Running Spot : cd /home/mcc/execution;'/home/mcc/BenchKit/bin//..//ltl2tgba' '--check=stutter' '--hoaf=tv' '-f' '!(X(X(F(X(F(F(X(p0))))))))'
Support contains 1 out of 267 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 267/267 places, 794/794 transitions.
Applied a total of 0 rules in 4 ms. Remains 267 /267 variables (removed 0) and now considering 794/794 (removed 0) transitions.
// Phase 1: matrix 794 rows 267 cols
[2022-05-16 02:24:54] [INFO ] Computed 24 place invariants in 2 ms
[2022-05-16 02:24:54] [INFO ] Implicit Places using invariants in 797 ms returned [265, 266]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 803 ms to find 2 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 265/267 places, 794/794 transitions.
Applied a total of 0 rules in 5 ms. Remains 265 /265 variables (removed 0) and now considering 794/794 (removed 0) transitions.
Finished structural reductions, in 2 iterations. Remains : 265/267 places, 794/794 transitions.
Stuttering acceptance computed with spot in 264 ms :[(NOT p0), (NOT p0), (NOT p0), (NOT p0), (NOT p0)]
Running random walk in product with property : FlexibleBarrier-PT-22a-LTLFireability-11 automaton TGBA Formula[mat=[[{ cond=(NOT p0), acceptance={0} source=0 dest: 0}], [{ cond=true, acceptance={} source=1 dest: 0}], [{ cond=true, acceptance={} source=2 dest: 1}], [{ cond=true, acceptance={} source=3 dest: 2}], [{ cond=true, acceptance={} source=4 dest: 3}]], initial=4, aps=[p0:(EQ s217 0)], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, deterministic, no-univ-branch, unambiguous, semi-deterministic, stutter-sensitive, very-weak, weak, inherently-weak], stateDesc=[null, null, null, null, null][false, false, false, false, false]]
Product exploration explored 100000 steps with 20000 reset in 1684 ms.
Product exploration explored 100000 steps with 20000 reset in 1230 ms.
Computed a total of 1 stabilizing places and 1 stable transitions
Computed a total of 1 stabilizing places and 1 stable transitions
Knowledge obtained : [p0, true]
False Knowledge obtained : []
Knowledge based reduction with 2 factoid took 100 ms. Reduced automaton from 5 states, 5 edges and 1 AP to 5 states, 5 edges and 1 AP.
Stuttering acceptance computed with spot in 228 ms :[(NOT p0), (NOT p0), (NOT p0), (NOT p0), (NOT p0)]
Finished random walk after 552 steps, including 0 resets, run visited all 1 properties in 7 ms. (steps per millisecond=78 )
Knowledge obtained : [p0, true]
False Knowledge obtained : [(F (NOT p0))]
Knowledge based reduction with 2 factoid took 146 ms. Reduced automaton from 5 states, 5 edges and 1 AP to 5 states, 5 edges and 1 AP.
Stuttering acceptance computed with spot in 230 ms :[(NOT p0), (NOT p0), (NOT p0), (NOT p0), (NOT p0)]
Stuttering acceptance computed with spot in 197 ms :[(NOT p0), (NOT p0), (NOT p0), (NOT p0), (NOT p0)]
Support contains 1 out of 265 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 265/265 places, 794/794 transitions.
Applied a total of 0 rules in 6 ms. Remains 265 /265 variables (removed 0) and now considering 794/794 (removed 0) transitions.
// Phase 1: matrix 794 rows 265 cols
[2022-05-16 02:24:59] [INFO ] Computed 22 place invariants in 4 ms
[2022-05-16 02:24:59] [INFO ] Implicit Places using invariants in 112 ms returned []
// Phase 1: matrix 794 rows 265 cols
[2022-05-16 02:24:59] [INFO ] Computed 22 place invariants in 3 ms
[2022-05-16 02:24:59] [INFO ] Implicit Places using invariants and state equation in 397 ms returned []
Implicit Place search using SMT with State Equation took 520 ms to find 0 implicit places.
// Phase 1: matrix 794 rows 265 cols
[2022-05-16 02:24:59] [INFO ] Computed 22 place invariants in 4 ms
[2022-05-16 02:25:00] [INFO ] Dead Transitions using invariants and state equation in 856 ms found 0 transitions.
Finished structural reductions, in 1 iterations. Remains : 265/265 places, 794/794 transitions.
Computed a total of 1 stabilizing places and 1 stable transitions
Computed a total of 1 stabilizing places and 1 stable transitions
Knowledge obtained : [p0, true]
False Knowledge obtained : []
Knowledge based reduction with 2 factoid took 114 ms. Reduced automaton from 5 states, 5 edges and 1 AP to 5 states, 5 edges and 1 AP.
Stuttering acceptance computed with spot in 242 ms :[(NOT p0), (NOT p0), (NOT p0), (NOT p0), (NOT p0)]
Finished random walk after 1309 steps, including 0 resets, run visited all 1 properties in 18 ms. (steps per millisecond=72 )
Knowledge obtained : [p0, true]
False Knowledge obtained : [(F (NOT p0))]
Knowledge based reduction with 2 factoid took 125 ms. Reduced automaton from 5 states, 5 edges and 1 AP to 5 states, 5 edges and 1 AP.
Stuttering acceptance computed with spot in 226 ms :[(NOT p0), (NOT p0), (NOT p0), (NOT p0), (NOT p0)]
Stuttering acceptance computed with spot in 207 ms :[(NOT p0), (NOT p0), (NOT p0), (NOT p0), (NOT p0)]
Stuttering acceptance computed with spot in 218 ms :[(NOT p0), (NOT p0), (NOT p0), (NOT p0), (NOT p0)]
Product exploration explored 100000 steps with 20000 reset in 1379 ms.
Product exploration explored 100000 steps with 20000 reset in 1096 ms.
Applying partial POR strategy [true, false, false, false, false]
Stuttering acceptance computed with spot in 196 ms :[(NOT p0), (NOT p0), (NOT p0), (NOT p0), (NOT p0)]
Support contains 1 out of 265 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 265/265 places, 794/794 transitions.
Graph (trivial) has 349 edges and 265 vertex of which 262 / 265 are part of one of the 22 SCC in 2 ms
Free SCC test removed 240 places
Ensure Unique test removed 536 transitions
Reduce isomorphic transitions removed 536 transitions.
Drop transitions removed 232 transitions
Redundant transition composition rules discarded 232 transitions
Iterating global reduction 0 with 232 rules applied. Total rules applied 233 place count 25 transition count 26
Discarding 20 places :
Symmetric choice reduction at 0 with 20 rule applications. Total rules 253 place count 5 transition count 6
Iterating global reduction 0 with 20 rules applied. Total rules applied 273 place count 5 transition count 6
Applied a total of 273 rules in 20 ms. Remains 5 /265 variables (removed 260) and now considering 6/794 (removed 788) transitions.
[2022-05-16 02:25:04] [INFO ] Redundant transitions in 0 ms returned []
[2022-05-16 02:25:04] [INFO ] Flow matrix only has 5 transitions (discarded 1 similar events)
// Phase 1: matrix 5 rows 5 cols
[2022-05-16 02:25:04] [INFO ] Computed 2 place invariants in 1 ms
[2022-05-16 02:25:04] [INFO ] Dead Transitions using invariants and state equation in 25 ms found 0 transitions.
Starting structural reductions in SI_LTL mode, iteration 1 : 5/265 places, 6/794 transitions.
Finished structural reductions, in 1 iterations. Remains : 5/265 places, 6/794 transitions.
Product exploration explored 100000 steps with 20000 reset in 1366 ms.
Product exploration explored 100000 steps with 20000 reset in 1198 ms.
Built C files in :
/tmp/ltsmin4226036512809638341
[2022-05-16 02:25:07] [INFO ] Built C files in 43ms conformant to PINS (ltsmin variant)in folder :/tmp/ltsmin4226036512809638341
Running compilation step : cd /tmp/ltsmin4226036512809638341;'/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.ltsmin.binaries_1.0.0.202205111006/bin/limit_time.pl' '3' 'gcc' '-c' '-I/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.ltsmin.binaries_1.0.0.202205111006/bin/include/' '-I.' '-std=c99' '-fPIC' '-O0' 'model.c'
Compilation finished in 2261 ms.
Running link step : cd /tmp/ltsmin4226036512809638341;'gcc' '-shared' '-o' 'gal.so' 'model.o'
Link finished in 51 ms.
Running LTSmin : cd /tmp/ltsmin4226036512809638341;'/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.ltsmin.binaries_1.0.0.202205111006/bin/pins2lts-mc-linux64' './gal.so' '--threads=8' '--when' '--hoa' '/tmp/stateBased10451655233166972495.hoa' '--buchi-type=spotba'
LTSmin run took 399 ms.
FORMULA FlexibleBarrier-PT-22a-LTLFireability-11 TRUE TECHNIQUES EXPLICIT LTSMIN SAT_SMT
Treatment of property FlexibleBarrier-PT-22a-LTLFireability-11 finished in 15890 ms.
Running Spot : cd /home/mcc/execution;'/home/mcc/BenchKit/bin//..//ltl2tgba' '--check=stutter' '--hoaf=tv' '-f' '!(F((F((!p0&&G(p0))) U p0)))'
Support contains 3 out of 267 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 267/267 places, 794/794 transitions.
Graph (trivial) has 215 edges and 267 vertex of which 60 / 267 are part of one of the 20 SCC in 6 ms
Free SCC test removed 40 places
Ensure Unique test removed 211 transitions
Reduce isomorphic transitions removed 211 transitions.
Performed 66 Post agglomeration using F-continuation condition.Transition count delta: 66
Deduced a syphon composed of 66 places in 1 ms
Reduce places removed 66 places and 0 transitions.
Iterating global reduction 0 with 132 rules applied. Total rules applied 133 place count 161 transition count 517
Drop transitions removed 268 transitions
Redundant transition composition rules discarded 268 transitions
Iterating global reduction 0 with 268 rules applied. Total rules applied 401 place count 161 transition count 249
Partial Post-agglomeration rule applied 1 times.
Drop transitions removed 1 transitions
Iterating global reduction 0 with 1 rules applied. Total rules applied 402 place count 161 transition count 249
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 403 place count 160 transition count 248
Iterating global reduction 0 with 1 rules applied. Total rules applied 404 place count 160 transition count 248
Applied a total of 404 rules in 70 ms. Remains 160 /267 variables (removed 107) and now considering 248/794 (removed 546) transitions.
[2022-05-16 02:25:10] [INFO ] Flow matrix only has 207 transitions (discarded 41 similar events)
// Phase 1: matrix 207 rows 160 cols
[2022-05-16 02:25:10] [INFO ] Computed 24 place invariants in 2 ms
[2022-05-16 02:25:10] [INFO ] Implicit Places using invariants in 257 ms returned [159]
Discarding 1 places :
Implicit Place search using SMT only with invariants took 259 ms to find 1 implicit places.
Starting structural reductions in SI_LTL mode, iteration 1 : 159/267 places, 248/794 transitions.
Graph (trivial) has 218 edges and 159 vertex of which 60 / 159 are part of one of the 20 SCC in 2 ms
Free SCC test removed 40 places
Ensure Unique test removed 80 transitions
Reduce isomorphic transitions removed 80 transitions.
Drop transitions removed 22 transitions
Trivial Post-agglo rules discarded 22 transitions
Performed 22 trivial Post agglomeration. Transition count delta: 22
Iterating post reduction 0 with 22 rules applied. Total rules applied 23 place count 119 transition count 146
Reduce places removed 22 places and 0 transitions.
Iterating post reduction 1 with 22 rules applied. Total rules applied 45 place count 97 transition count 146
Performed 22 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 22 Pre rules applied. Total rules applied 45 place count 97 transition count 124
Deduced a syphon composed of 22 places in 0 ms
Reduce places removed 22 places and 0 transitions.
Iterating global reduction 2 with 44 rules applied. Total rules applied 89 place count 75 transition count 124
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 2 with 48 rules applied. Total rules applied 137 place count 51 transition count 100
Drop transitions removed 22 transitions
Redundant transition composition rules discarded 22 transitions
Iterating global reduction 2 with 22 rules applied. Total rules applied 159 place count 51 transition count 78
Applied a total of 159 rules in 14 ms. Remains 51 /159 variables (removed 108) and now considering 78/248 (removed 170) transitions.
[2022-05-16 02:25:10] [INFO ] Flow matrix only has 55 transitions (discarded 23 similar events)
// Phase 1: matrix 55 rows 51 cols
[2022-05-16 02:25:10] [INFO ] Computed 23 place invariants in 0 ms
[2022-05-16 02:25:10] [INFO ] Implicit Places using invariants in 53 ms returned []
[2022-05-16 02:25:10] [INFO ] Flow matrix only has 55 transitions (discarded 23 similar events)
// Phase 1: matrix 55 rows 51 cols
[2022-05-16 02:25:10] [INFO ] Computed 23 place invariants in 0 ms
[2022-05-16 02:25:10] [INFO ] State equation strengthened by 25 read => feed constraints.
[2022-05-16 02:25:10] [INFO ] Implicit Places using invariants and state equation in 96 ms returned []
Implicit Place search using SMT with State Equation took 150 ms to find 0 implicit places.
Starting structural reductions in SI_LTL mode, iteration 2 : 51/267 places, 78/794 transitions.
Finished structural reductions, in 2 iterations. Remains : 51/267 places, 78/794 transitions.
Stuttering acceptance computed with spot in 138 ms :[(NOT p0)]
Running random walk in product with property : FlexibleBarrier-PT-22a-LTLFireability-12 automaton TGBA Formula[mat=[[{ cond=(NOT p0), acceptance={0} source=0 dest: 0}]], initial=0, aps=[p0:(AND (EQ s5 1) (EQ s34 1) (EQ s50 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 1 steps with 0 reset in 0 ms.
FORMULA FlexibleBarrier-PT-22a-LTLFireability-12 FALSE TECHNIQUES STUTTER_TEST
Treatment of property FlexibleBarrier-PT-22a-LTLFireability-12 finished in 648 ms.
Running Spot : cd /home/mcc/execution;'/home/mcc/BenchKit/bin//..//ltl2tgba' '--check=stutter' '--hoaf=tv' '-f' '!(F(G(X(G((G(p0)||(X(X(p0))&&p1)))))))'
Support contains 2 out of 267 places. Attempting structural reductions.
Property had overlarge support with respect to TGBA, discarding it for now.
Starting structural reductions in SI_LTL mode, iteration 0 : 267/267 places, 794/794 transitions.
Graph (trivial) has 213 edges and 267 vertex of which 60 / 267 are part of one of the 20 SCC in 0 ms
Free SCC test removed 40 places
Ensure Unique test removed 211 transitions
Reduce isomorphic transitions removed 211 transitions.
Performed 65 Post agglomeration using F-continuation condition.Transition count delta: 65
Deduced a syphon composed of 65 places in 0 ms
Reduce places removed 65 places and 0 transitions.
Iterating global reduction 0 with 130 rules applied. Total rules applied 131 place count 162 transition count 518
Drop transitions removed 268 transitions
Redundant transition composition rules discarded 268 transitions
Iterating global reduction 0 with 268 rules applied. Total rules applied 399 place count 162 transition count 250
Partial Post-agglomeration rule applied 2 times.
Drop transitions removed 2 transitions
Iterating global reduction 0 with 2 rules applied. Total rules applied 401 place count 162 transition count 250
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 402 place count 161 transition count 249
Iterating global reduction 0 with 1 rules applied. Total rules applied 403 place count 161 transition count 249
Applied a total of 403 rules in 60 ms. Remains 161 /267 variables (removed 106) and now considering 249/794 (removed 545) transitions.
[2022-05-16 02:25:10] [INFO ] Flow matrix only has 208 transitions (discarded 41 similar events)
// Phase 1: matrix 208 rows 161 cols
[2022-05-16 02:25:10] [INFO ] Computed 24 place invariants in 1 ms
[2022-05-16 02:25:10] [INFO ] Implicit Places using invariants in 146 ms returned []
[2022-05-16 02:25:10] [INFO ] Flow matrix only has 208 transitions (discarded 41 similar events)
// Phase 1: matrix 208 rows 161 cols
[2022-05-16 02:25:10] [INFO ] Computed 24 place invariants in 1 ms
[2022-05-16 02:25:11] [INFO ] State equation strengthened by 157 read => feed constraints.
[2022-05-16 02:25:11] [INFO ] Implicit Places using invariants and state equation in 394 ms returned []
Implicit Place search using SMT with State Equation took 543 ms to find 0 implicit places.
[2022-05-16 02:25:11] [INFO ] Redundant transitions in 51 ms returned [115]
Found 1 redundant transitions using SMT.
Drop transitions removed 1 transitions
Redundant transitions reduction (with SMT) removed 1 transitions.
[2022-05-16 02:25:11] [INFO ] Flow matrix only has 207 transitions (discarded 41 similar events)
// Phase 1: matrix 207 rows 161 cols
[2022-05-16 02:25:11] [INFO ] Computed 24 place invariants in 2 ms
[2022-05-16 02:25:11] [INFO ] Dead Transitions using invariants and state equation in 223 ms found 0 transitions.
Starting structural reductions in SI_LTL mode, iteration 1 : 161/267 places, 248/794 transitions.
Applied a total of 0 rules in 12 ms. Remains 161 /161 variables (removed 0) and now considering 248/248 (removed 0) transitions.
Finished structural reductions, in 2 iterations. Remains : 161/267 places, 248/794 transitions.
Stuttering acceptance computed with spot in 35 ms :[(NOT p0)]
Running random walk in product with property : FlexibleBarrier-PT-22a-LTLFireability-13 automaton TGBA Formula[mat=[[{ cond=p0, acceptance={} source=0 dest: 0}, { cond=(NOT p0), acceptance={0} source=0 dest: 0}]], initial=0, aps=[p0:(OR (EQ s120 0) (EQ s160 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 22 steps with 0 reset in 1 ms.
FORMULA FlexibleBarrier-PT-22a-LTLFireability-13 FALSE TECHNIQUES STUTTER_TEST
Treatment of property FlexibleBarrier-PT-22a-LTLFireability-13 finished in 953 ms.
Running Spot : cd /home/mcc/execution;'/home/mcc/BenchKit/bin//..//ltl2tgba' '--check=stutter' '--hoaf=tv' '-f' '!(F(X(G(X(G(F(G(X(G(p0))))))))))'
Support contains 3 out of 267 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 267/267 places, 794/794 transitions.
Graph (trivial) has 215 edges and 267 vertex of which 60 / 267 are part of one of the 20 SCC in 1 ms
Free SCC test removed 40 places
Ensure Unique test removed 211 transitions
Reduce isomorphic transitions removed 211 transitions.
Performed 66 Post agglomeration using F-continuation condition.Transition count delta: 66
Deduced a syphon composed of 66 places in 0 ms
Reduce places removed 66 places and 0 transitions.
Iterating global reduction 0 with 132 rules applied. Total rules applied 133 place count 161 transition count 517
Drop transitions removed 268 transitions
Redundant transition composition rules discarded 268 transitions
Iterating global reduction 0 with 268 rules applied. Total rules applied 401 place count 161 transition count 249
Partial Post-agglomeration rule applied 1 times.
Drop transitions removed 1 transitions
Iterating global reduction 0 with 1 rules applied. Total rules applied 402 place count 161 transition count 249
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 403 place count 160 transition count 248
Iterating global reduction 0 with 1 rules applied. Total rules applied 404 place count 160 transition count 248
Applied a total of 404 rules in 56 ms. Remains 160 /267 variables (removed 107) and now considering 248/794 (removed 546) transitions.
[2022-05-16 02:25:11] [INFO ] Flow matrix only has 207 transitions (discarded 41 similar events)
// Phase 1: matrix 207 rows 160 cols
[2022-05-16 02:25:11] [INFO ] Computed 24 place invariants in 1 ms
[2022-05-16 02:25:11] [INFO ] Implicit Places using invariants in 218 ms returned [159]
Discarding 1 places :
Implicit Place search using SMT only with invariants took 220 ms to find 1 implicit places.
Starting structural reductions in SI_LTL mode, iteration 1 : 159/267 places, 248/794 transitions.
Graph (trivial) has 218 edges and 159 vertex of which 60 / 159 are part of one of the 20 SCC in 0 ms
Free SCC test removed 40 places
Ensure Unique test removed 80 transitions
Reduce isomorphic transitions removed 80 transitions.
Drop transitions removed 22 transitions
Trivial Post-agglo rules discarded 22 transitions
Performed 22 trivial Post agglomeration. Transition count delta: 22
Iterating post reduction 0 with 22 rules applied. Total rules applied 23 place count 119 transition count 146
Reduce places removed 22 places and 0 transitions.
Iterating post reduction 1 with 22 rules applied. Total rules applied 45 place count 97 transition count 146
Performed 22 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 22 Pre rules applied. Total rules applied 45 place count 97 transition count 124
Deduced a syphon composed of 22 places in 0 ms
Reduce places removed 22 places and 0 transitions.
Iterating global reduction 2 with 44 rules applied. Total rules applied 89 place count 75 transition count 124
Performed 24 Post agglomeration using F-continuation condition.Transition count delta: 24
Deduced a syphon composed of 24 places in 1 ms
Reduce places removed 24 places and 0 transitions.
Iterating global reduction 2 with 48 rules applied. Total rules applied 137 place count 51 transition count 100
Drop transitions removed 22 transitions
Redundant transition composition rules discarded 22 transitions
Iterating global reduction 2 with 22 rules applied. Total rules applied 159 place count 51 transition count 78
Applied a total of 159 rules in 11 ms. Remains 51 /159 variables (removed 108) and now considering 78/248 (removed 170) transitions.
[2022-05-16 02:25:11] [INFO ] Flow matrix only has 55 transitions (discarded 23 similar events)
// Phase 1: matrix 55 rows 51 cols
[2022-05-16 02:25:11] [INFO ] Computed 23 place invariants in 0 ms
[2022-05-16 02:25:11] [INFO ] Implicit Places using invariants in 47 ms returned []
[2022-05-16 02:25:11] [INFO ] Flow matrix only has 55 transitions (discarded 23 similar events)
// Phase 1: matrix 55 rows 51 cols
[2022-05-16 02:25:11] [INFO ] Computed 23 place invariants in 1 ms
[2022-05-16 02:25:11] [INFO ] State equation strengthened by 25 read => feed constraints.
[2022-05-16 02:25:12] [INFO ] Implicit Places using invariants and state equation in 98 ms returned []
Implicit Place search using SMT with State Equation took 147 ms to find 0 implicit places.
Starting structural reductions in SI_LTL mode, iteration 2 : 51/267 places, 78/794 transitions.
Finished structural reductions, in 2 iterations. Remains : 51/267 places, 78/794 transitions.
Stuttering acceptance computed with spot in 49 ms :[(NOT p0)]
Running random walk in product with property : FlexibleBarrier-PT-22a-LTLFireability-14 automaton TGBA Formula[mat=[[{ cond=p0, acceptance={} source=0 dest: 0}, { cond=(NOT p0), acceptance={0} source=0 dest: 0}]], initial=0, aps=[p0:(AND (EQ s9 1) (EQ s40 1) (EQ s50 1))], 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 1 steps with 0 reset in 0 ms.
FORMULA FlexibleBarrier-PT-22a-LTLFireability-14 FALSE TECHNIQUES STUTTER_TEST
Treatment of property FlexibleBarrier-PT-22a-LTLFireability-14 finished in 497 ms.
All properties solved by simple procedures.
Total runtime 28534 ms.

BK_STOP 1652667912243

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

+ export LANG=C
+ LANG=C
+ export BINDIR=/home/mcc/BenchKit/bin//../
+ BINDIR=/home/mcc/BenchKit/bin//../
++ pwd
+ export MODEL=/home/mcc/execution
+ MODEL=/home/mcc/execution
+ [[ LTLFireability = StateSpace ]]
+ /home/mcc/BenchKit/bin//..//runeclipse.sh /home/mcc/execution LTLFireability -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600
+ ulimit -s 65536
+ export PYTHONPATH=/usr/lib/python3.9/site-packages/
+ PYTHONPATH=/usr/lib/python3.9/site-packages/
+ export LD_LIBRARY_PATH=/usr/local/lib:
+ LD_LIBRARY_PATH=/usr/local/lib:
+ [[ -z '' ]]
+ export LTSMIN_MEM_SIZE=8589934592
+ LTSMIN_MEM_SIZE=8589934592
++ sed s/.jar//
++ perl -pe 's/.*\.//g'
++ ls /home/mcc/BenchKit/bin//..//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202205111006.jar
+ VERSION=202205111006
+ echo 'Running Version 202205111006'
+ /home/mcc/BenchKit/bin//..//itstools/its-tools -data @none -pnfolder /home/mcc/execution -examination LTLFireability -spotpath /home/mcc/BenchKit/bin//..//ltlfilt -z3path /home/mcc/BenchKit/bin//..//z3/bin/z3 -yices2path /home/mcc/BenchKit/bin//..//yices/bin/yices -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600 -vmargs -Dosgi.locking=none -Declipse.stateSaveDelayInterval=-1 -Dosgi.configuration.area=@none -Xss128m -Xms40m -Xmx8192m

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-22a"
export BK_EXAMINATION="LTLFireability"
export BK_TOOL="itstools"
export BK_RESULT_DIR="/tmp/BK_RESULTS/OUTPUTS"
export BK_TIME_CONFINEMENT="3600"
export BK_MEMORY_CONFINEMENT="16384"
export BK_BIN_PATH="/home/mcc/BenchKit/bin/"

# this is specific to your benchmark or test

export BIN_DIR="$HOME/BenchKit/bin"

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

# this is for BenchKit: explicit launching of the test
echo "====================================================================="
echo " Generated by BenchKit 2-4028"
echo " Executing tool itstools"
echo " Input is FlexibleBarrier-PT-22a, 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 r096-smll-165260575800148"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/FlexibleBarrier-PT-22a.tgz
mv FlexibleBarrier-PT-22a 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 ;