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.r222-tall-165286025000276.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)
................
=====================================================================
Generated by BenchKit 2-4028
Executing tool itstools
Input is ShieldIIPt-PT-020A, examination is LTLFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r222-tall-165286025000276
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 336K
-rw-r--r-- 1 mcc users 5.8K Apr 29 18:56 CTLCardinality.txt
-rw-r--r-- 1 mcc users 62K Apr 29 18:56 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.9K Apr 29 18:40 CTLFireability.txt
-rw-r--r-- 1 mcc users 55K Apr 29 18:40 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K May 10 09:34 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.6K May 10 09:34 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 3.9K May 9 08:50 LTLCardinality.txt
-rw-r--r-- 1 mcc users 29K May 9 08:50 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.2K May 9 08:50 LTLFireability.txt
-rw-r--r-- 1 mcc users 16K May 9 08:50 LTLFireability.xml
-rw-r--r-- 1 mcc users 1.6K May 9 08:50 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K May 9 08:50 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 May 10 09:34 equiv_col
-rw-r--r-- 1 mcc users 5 May 10 09:34 instance
-rw-r--r-- 1 mcc users 6 May 10 09:34 iscolored
-rw-r--r-- 1 mcc users 105K May 10 09:34 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 ShieldIIPt-PT-020A-LTLFireability-00
FORMULA_NAME ShieldIIPt-PT-020A-LTLFireability-01
FORMULA_NAME ShieldIIPt-PT-020A-LTLFireability-02
FORMULA_NAME ShieldIIPt-PT-020A-LTLFireability-03
FORMULA_NAME ShieldIIPt-PT-020A-LTLFireability-04
FORMULA_NAME ShieldIIPt-PT-020A-LTLFireability-05
FORMULA_NAME ShieldIIPt-PT-020A-LTLFireability-06
FORMULA_NAME ShieldIIPt-PT-020A-LTLFireability-07
FORMULA_NAME ShieldIIPt-PT-020A-LTLFireability-08
FORMULA_NAME ShieldIIPt-PT-020A-LTLFireability-09
FORMULA_NAME ShieldIIPt-PT-020A-LTLFireability-10
FORMULA_NAME ShieldIIPt-PT-020A-LTLFireability-11
FORMULA_NAME ShieldIIPt-PT-020A-LTLFireability-12
FORMULA_NAME ShieldIIPt-PT-020A-LTLFireability-13
FORMULA_NAME ShieldIIPt-PT-020A-LTLFireability-14
FORMULA_NAME ShieldIIPt-PT-020A-LTLFireability-15

=== Now, execution of the tool begins

BK_START 1652957559687

Running Version 202205111006
[2022-05-19 10:52:40] [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]
[2022-05-19 10:52:40] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2022-05-19 10:52:41] [INFO ] Load time of PNML (sax parser for PT used): 100 ms
[2022-05-19 10:52:41] [INFO ] Transformed 383 places.
[2022-05-19 10:52:41] [INFO ] Transformed 283 transitions.
[2022-05-19 10:52:41] [INFO ] Found NUPN structural information;
[2022-05-19 10:52:41] [INFO ] Parsed PT model containing 383 places and 283 transitions in 203 ms.
Parsed 16 properties from file /home/mcc/execution/LTLFireability.xml in 9 ms.
Working with output stream class java.io.PrintStream
Initial state reduction rules removed 4 formulas.
Ensure Unique test removed 1 transitions
Reduce redundant transitions removed 1 transitions.
FORMULA ShieldIIPt-PT-020A-LTLFireability-04 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA ShieldIIPt-PT-020A-LTLFireability-05 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA ShieldIIPt-PT-020A-LTLFireability-06 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA ShieldIIPt-PT-020A-LTLFireability-09 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Support contains 51 out of 383 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 383/383 places, 282/282 transitions.
Applied a total of 0 rules in 50 ms. Remains 383 /383 variables (removed 0) and now considering 282/282 (removed 0) transitions.
// Phase 1: matrix 282 rows 383 cols
[2022-05-19 10:52:41] [INFO ] Computed 181 place invariants in 16 ms
[2022-05-19 10:52:41] [INFO ] Implicit Places using invariants in 371 ms returned []
// Phase 1: matrix 282 rows 383 cols
[2022-05-19 10:52:41] [INFO ] Computed 181 place invariants in 7 ms
[2022-05-19 10:52:41] [INFO ] Implicit Places using invariants and state equation in 340 ms returned []
Implicit Place search using SMT with State Equation took 741 ms to find 0 implicit places.
// Phase 1: matrix 282 rows 383 cols
[2022-05-19 10:52:41] [INFO ] Computed 181 place invariants in 5 ms
[2022-05-19 10:52:42] [INFO ] Dead Transitions using invariants and state equation in 182 ms found 0 transitions.
Finished structural reductions, in 1 iterations. Remains : 383/383 places, 282/282 transitions.
Support contains 51 out of 383 places after structural reductions.
[2022-05-19 10:52:42] [INFO ] Flatten gal took : 80 ms
[2022-05-19 10:52:42] [INFO ] Flatten gal took : 34 ms
[2022-05-19 10:52:42] [INFO ] Input system was already deterministic with 282 transitions.
Incomplete random walk after 10000 steps, including 2 resets, run finished after 607 ms. (steps per millisecond=16 ) properties (out of 29) seen :18
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 68 ms. (steps per millisecond=147 ) properties (out of 11) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 68 ms. (steps per millisecond=147 ) properties (out of 11) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 59 ms. (steps per millisecond=169 ) properties (out of 11) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 66 ms. (steps per millisecond=151 ) properties (out of 11) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 64 ms. (steps per millisecond=156 ) properties (out of 11) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 77 ms. (steps per millisecond=129 ) properties (out of 11) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 64 ms. (steps per millisecond=156 ) properties (out of 11) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 64 ms. (steps per millisecond=156 ) properties (out of 11) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 60 ms. (steps per millisecond=166 ) properties (out of 11) seen :0
Incomplete Best-First random walk after 10000 steps, including 2 resets, run finished after 60 ms. (steps per millisecond=166 ) properties (out of 11) seen :0
Incomplete Best-First random walk after 10000 steps, including 2 resets, run finished after 64 ms. (steps per millisecond=156 ) properties (out of 11) seen :0
Running SMT prover for 11 properties.
// Phase 1: matrix 282 rows 383 cols
[2022-05-19 10:52:43] [INFO ] Computed 181 place invariants in 2 ms
[2022-05-19 10:52:44] [INFO ] [Real]Absence check using 181 positive place invariants in 23 ms returned sat
[2022-05-19 10:52:44] [INFO ] After 328ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:11
[2022-05-19 10:52:44] [INFO ] [Nat]Absence check using 181 positive place invariants in 31 ms returned sat
[2022-05-19 10:52:44] [INFO ] After 487ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :11
[2022-05-19 10:52:45] [INFO ] After 950ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :11
Attempting to minimize the solution found.
Minimization took 343 ms.
[2022-05-19 10:52:45] [INFO ] After 1559ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :11
Parikh walk visited 0 properties in 622 ms.
Support contains 24 out of 383 places. Attempting structural reductions.
Starting structural reductions in SAFETY mode, iteration 0 : 383/383 places, 282/282 transitions.
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 0 with 1 Pre rules applied. Total rules applied 0 place count 383 transition count 281
Deduced a syphon composed of 1 places in 1 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 0 with 2 rules applied. Total rules applied 2 place count 382 transition count 281
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 1 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 0 with 2 rules applied. Total rules applied 4 place count 381 transition count 280
Partial Free-agglomeration rule applied 38 times.
Drop transitions removed 38 transitions
Iterating global reduction 0 with 38 rules applied. Total rules applied 42 place count 381 transition count 280
Applied a total of 42 rules in 57 ms. Remains 381 /383 variables (removed 2) and now considering 280/282 (removed 2) transitions.
Finished structural reductions, in 1 iterations. Remains : 381/383 places, 280/282 transitions.
Finished random walk after 2269 steps, including 0 resets, run visited all 11 properties in 65 ms. (steps per millisecond=34 )
FORMULA ShieldIIPt-PT-020A-LTLFireability-03 FALSE TECHNIQUES REACHABILITY_KNOWLEDGE
Computed a total of 1 stabilizing places and 1 stable transitions
Running Spot : cd /home/mcc/execution;'/home/mcc/BenchKit/bin//..//ltl2tgba' '--check=stutter' '--hoaf=tv' '-f' '!(X((G(X(p0))&&F(X((X(p1)||p2))))))'
Support contains 5 out of 383 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 383/383 places, 282/282 transitions.
Applied a total of 0 rules in 8 ms. Remains 383 /383 variables (removed 0) and now considering 282/282 (removed 0) transitions.
// Phase 1: matrix 282 rows 383 cols
[2022-05-19 10:52:46] [INFO ] Computed 181 place invariants in 4 ms
[2022-05-19 10:52:47] [INFO ] Implicit Places using invariants in 202 ms returned []
// Phase 1: matrix 282 rows 383 cols
[2022-05-19 10:52:47] [INFO ] Computed 181 place invariants in 2 ms
[2022-05-19 10:52:47] [INFO ] Implicit Places using invariants and state equation in 313 ms returned []
Implicit Place search using SMT with State Equation took 518 ms to find 0 implicit places.
// Phase 1: matrix 282 rows 383 cols
[2022-05-19 10:52:47] [INFO ] Computed 181 place invariants in 1 ms
[2022-05-19 10:52:47] [INFO ] Dead Transitions using invariants and state equation in 177 ms found 0 transitions.
Finished structural reductions, in 1 iterations. Remains : 383/383 places, 282/282 transitions.
Stuttering acceptance computed with spot in 346 ms :[(NOT p0), (OR (NOT p0) (AND (NOT p1) (NOT p2))), (OR (NOT p0) (AND (NOT p1) (NOT p2))), (OR (NOT p0) (AND (NOT p1) (NOT p2))), (OR (NOT p0) (AND (NOT p1) (NOT p2))), true]
Running random walk in product with property : ShieldIIPt-PT-020A-LTLFireability-00 automaton TGBA Formula[mat=[[{ cond=p0, acceptance={} source=0 dest: 0}, { cond=(NOT p0), acceptance={} source=0 dest: 5}], [{ cond=(AND p0 p2), acceptance={} source=1 dest: 0}, { cond=(AND p0 (NOT p2)), acceptance={} source=1 dest: 2}, { cond=(NOT p0), acceptance={} source=1 dest: 5}], [{ cond=(OR (AND p0 p2) (AND p0 p1)), acceptance={0} source=2 dest: 0}, { cond=(AND p0 (NOT p2) (NOT p1)), acceptance={0} source=2 dest: 2}, { cond=(NOT p0), acceptance={0} source=2 dest: 5}], [{ cond=true, acceptance={} source=3 dest: 1}], [{ cond=true, acceptance={} source=4 dest: 3}], [{ cond=true, acceptance={0} source=5 dest: 5}]], initial=4, aps=[p0:(AND (EQ s291 1) (EQ s300 1)), p2:(AND (OR (EQ s291 0) (EQ s300 0)) (OR (EQ s277 0) (EQ s281 0) (EQ s287 0))), p1:(OR (EQ s277 0) (EQ s281 0) (EQ s287 ...], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, complete, deterministic, no-univ-branch, unambiguous, semi-deterministic, stutter-sensitive, very-weak, weak, inherently-weak], stateDesc=[null, null, null, null, null, null][false, false, false, false, false, false]]
Entered a terminal (fully accepting) state of product in 2 steps with 0 reset in 2 ms.
FORMULA ShieldIIPt-PT-020A-LTLFireability-00 FALSE TECHNIQUES STUTTER_TEST
Treatment of property ShieldIIPt-PT-020A-LTLFireability-00 finished in 1124 ms.
Running Spot : cd /home/mcc/execution;'/home/mcc/BenchKit/bin//..//ltl2tgba' '--check=stutter' '--hoaf=tv' '-f' '!(X(F(G(X((X(F(p0))||X(F(p1))))))))'
Support contains 5 out of 383 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 383/383 places, 282/282 transitions.
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 0 with 1 Pre rules applied. Total rules applied 0 place count 383 transition count 281
Deduced a syphon composed of 1 places in 1 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 0 with 2 rules applied. Total rules applied 2 place count 382 transition count 281
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 0 with 2 rules applied. Total rules applied 4 place count 381 transition count 280
Applied a total of 4 rules in 37 ms. Remains 381 /383 variables (removed 2) and now considering 280/282 (removed 2) transitions.
// Phase 1: matrix 280 rows 381 cols
[2022-05-19 10:52:47] [INFO ] Computed 181 place invariants in 1 ms
[2022-05-19 10:52:48] [INFO ] Implicit Places using invariants in 184 ms returned [373, 374]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 186 ms to find 2 implicit places.
Starting structural reductions in SI_LTL mode, iteration 1 : 379/383 places, 280/282 transitions.
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 0 with 1 Pre rules applied. Total rules applied 0 place count 379 transition count 279
Deduced a syphon composed of 1 places in 3 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 0 with 2 rules applied. Total rules applied 2 place count 378 transition count 279
Applied a total of 2 rules in 19 ms. Remains 378 /379 variables (removed 1) and now considering 279/280 (removed 1) transitions.
// Phase 1: matrix 279 rows 378 cols
[2022-05-19 10:52:48] [INFO ] Computed 179 place invariants in 1 ms
[2022-05-19 10:52:48] [INFO ] Implicit Places using invariants in 192 ms returned [367]
Discarding 1 places :
Implicit Place search using SMT only with invariants took 201 ms to find 1 implicit places.
Starting structural reductions in SI_LTL mode, iteration 2 : 377/383 places, 279/282 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 0 with 2 rules applied. Total rules applied 2 place count 376 transition count 278
Applied a total of 2 rules in 21 ms. Remains 376 /377 variables (removed 1) and now considering 278/279 (removed 1) transitions.
// Phase 1: matrix 278 rows 376 cols
[2022-05-19 10:52:48] [INFO ] Computed 178 place invariants in 1 ms
[2022-05-19 10:52:48] [INFO ] Implicit Places using invariants in 178 ms returned []
// Phase 1: matrix 278 rows 376 cols
[2022-05-19 10:52:48] [INFO ] Computed 178 place invariants in 6 ms
[2022-05-19 10:52:48] [INFO ] Implicit Places using invariants and state equation in 325 ms returned []
Implicit Place search using SMT with State Equation took 506 ms to find 0 implicit places.
Starting structural reductions in SI_LTL mode, iteration 3 : 376/383 places, 278/282 transitions.
Finished structural reductions, in 3 iterations. Remains : 376/383 places, 278/282 transitions.
Stuttering acceptance computed with spot in 74 ms :[(AND (NOT p0) (NOT p1)), (AND (NOT p0) (NOT p1))]
Running random walk in product with property : ShieldIIPt-PT-020A-LTLFireability-01 automaton TGBA Formula[mat=[[{ cond=true, acceptance={} source=0 dest: 0}, { cond=(AND (NOT p0) (NOT p1)), acceptance={} source=0 dest: 1}], [{ cond=(AND (NOT p0) (NOT p1)), acceptance={0} source=1 dest: 1}]], initial=0, aps=[p0:(AND (EQ s307 1) (EQ s324 1)), p1:(AND (EQ s355 1) (EQ s361 1) (EQ s363 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]]
Product exploration explored 100000 steps with 11363 reset in 596 ms.
Stack based approach found an accepted trace after 5 steps with 0 reset with depth 6 and stack size 6 in 1 ms.
FORMULA ShieldIIPt-PT-020A-LTLFireability-01 FALSE TECHNIQUES STACK_TEST
Treatment of property ShieldIIPt-PT-020A-LTLFireability-01 finished in 1661 ms.
Running Spot : cd /home/mcc/execution;'/home/mcc/BenchKit/bin//..//ltl2tgba' '--check=stutter' '--hoaf=tv' '-f' '!(X((X(F(p0))&&(G(p1)||X(p2)))))'
Support contains 3 out of 383 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 383/383 places, 282/282 transitions.
Applied a total of 0 rules in 10 ms. Remains 383 /383 variables (removed 0) and now considering 282/282 (removed 0) transitions.
// Phase 1: matrix 282 rows 383 cols
[2022-05-19 10:52:49] [INFO ] Computed 181 place invariants in 1 ms
[2022-05-19 10:52:49] [INFO ] Implicit Places using invariants in 188 ms returned []
// Phase 1: matrix 282 rows 383 cols
[2022-05-19 10:52:49] [INFO ] Computed 181 place invariants in 1 ms
[2022-05-19 10:52:50] [INFO ] Implicit Places using invariants and state equation in 312 ms returned []
Implicit Place search using SMT with State Equation took 502 ms to find 0 implicit places.
// Phase 1: matrix 282 rows 383 cols
[2022-05-19 10:52:50] [INFO ] Computed 181 place invariants in 1 ms
[2022-05-19 10:52:50] [INFO ] Dead Transitions using invariants and state equation in 158 ms found 0 transitions.
Finished structural reductions, in 1 iterations. Remains : 383/383 places, 282/282 transitions.
Stuttering acceptance computed with spot in 253 ms :[(OR (NOT p0) (AND (NOT p1) (NOT p2))), (OR (NOT p0) (AND (NOT p1) (NOT p2))), (NOT p0), (NOT p2), (AND (NOT p1) (NOT p2)), true, (NOT p1)]
Running random walk in product with property : ShieldIIPt-PT-020A-LTLFireability-02 automaton TGBA Formula[mat=[[{ cond=true, acceptance={} source=0 dest: 1}], [{ cond=true, acceptance={} source=1 dest: 2}, { cond=(NOT p1), acceptance={} source=1 dest: 3}, { cond=p1, acceptance={} source=1 dest: 4}], [{ cond=(NOT p0), acceptance={0} source=2 dest: 2}], [{ cond=(NOT p2), acceptance={} source=3 dest: 5}], [{ cond=(AND (NOT p1) (NOT p2)), acceptance={} source=4 dest: 5}, { cond=(AND p1 (NOT p2)), acceptance={} source=4 dest: 6}], [{ cond=true, acceptance={0} source=5 dest: 5}], [{ cond=(NOT p1), acceptance={} source=6 dest: 5}, { cond=p1, acceptance={} source=6 dest: 6}]], initial=0, aps=[p1:(OR (EQ s58 1) (AND (EQ s80 1) (EQ s93 1))), p0:(EQ s58 0), p2:(OR (EQ s80 0) (EQ s93 0))], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, no-univ-branch, stutter-sensitive, very-weak, weak, inherently-weak], stateDesc=[null, null, null, null, null, null, null][false, false, false, false, false, false, false]]
Product exploration explored 100000 steps with 33333 reset in 618 ms.
Product exploration explored 100000 steps with 33333 reset in 674 ms.
Computed a total of 1 stabilizing places and 1 stable transitions
Computed a total of 1 stabilizing places and 1 stable transitions
Knowledge obtained : [(AND (NOT p1) p0 p2), (X (NOT p1)), (X (X (NOT (AND p1 (NOT p2))))), (X (X p0)), (X (X (NOT (AND (NOT p1) (NOT p2))))), (X (X p2))]
False Knowledge obtained : []
Property proved to be true thanks to knowledge :(X (X (NOT (AND (NOT p1) (NOT p2)))))
Knowledge based reduction with 6 factoid took 155 ms. Reduced automaton from 7 states, 11 edges and 3 AP to 1 states, 0 edges and 0 AP.
FORMULA ShieldIIPt-PT-020A-LTLFireability-02 TRUE TECHNIQUES KNOWLEDGE
Treatment of property ShieldIIPt-PT-020A-LTLFireability-02 finished in 2401 ms.
Running Spot : cd /home/mcc/execution;'/home/mcc/BenchKit/bin//..//ltl2tgba' '--check=stutter' '--hoaf=tv' '-f' '!(G(X(G((X(p0)&&(F(G(p1))||p2))))))'
Support contains 5 out of 383 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 383/383 places, 282/282 transitions.
Applied a total of 0 rules in 10 ms. Remains 383 /383 variables (removed 0) and now considering 282/282 (removed 0) transitions.
// Phase 1: matrix 282 rows 383 cols
[2022-05-19 10:52:52] [INFO ] Computed 181 place invariants in 1 ms
[2022-05-19 10:52:52] [INFO ] Implicit Places using invariants in 195 ms returned []
// Phase 1: matrix 282 rows 383 cols
[2022-05-19 10:52:52] [INFO ] Computed 181 place invariants in 1 ms
[2022-05-19 10:52:52] [INFO ] Implicit Places using invariants and state equation in 320 ms returned []
Implicit Place search using SMT with State Equation took 521 ms to find 0 implicit places.
// Phase 1: matrix 282 rows 383 cols
[2022-05-19 10:52:52] [INFO ] Computed 181 place invariants in 2 ms
[2022-05-19 10:52:52] [INFO ] Dead Transitions using invariants and state equation in 183 ms found 0 transitions.
Finished structural reductions, in 1 iterations. Remains : 383/383 places, 282/282 transitions.
Stuttering acceptance computed with spot in 171 ms :[(OR (NOT p0) (AND (NOT p1) (NOT p2))), (OR (NOT p0) (AND (NOT p1) (NOT p2))), (NOT p0), (NOT p1), true]
Running random walk in product with property : ShieldIIPt-PT-020A-LTLFireability-07 automaton TGBA Formula[mat=[[{ cond=true, acceptance={} source=0 dest: 1}], [{ cond=true, acceptance={} source=1 dest: 1}, { cond=true, acceptance={} source=1 dest: 2}, { cond=(NOT p2), acceptance={} source=1 dest: 3}], [{ cond=(NOT p0), acceptance={} source=2 dest: 4}], [{ cond=p1, acceptance={} source=3 dest: 3}, { cond=(NOT p1), acceptance={0} source=3 dest: 3}], [{ cond=true, acceptance={0} source=4 dest: 4}]], initial=0, aps=[p2:(EQ s73 0), p0:(OR (EQ s202 0) (EQ s227 0)), p1:(AND (EQ s2 1) (EQ s10 1))], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, no-univ-branch, stutter-sensitive], stateDesc=[null, null, null, null, null][false, false, false, false, false]]
Product exploration explored 100000 steps with 24985 reset in 557 ms.
Product exploration explored 100000 steps with 24979 reset in 603 ms.
Computed a total of 1 stabilizing places and 1 stable transitions
Computed a total of 1 stabilizing places and 1 stable transitions
Knowledge obtained : [(AND p2 p0 (NOT p1)), (X p2), true, (X (X p0)), (X (X p2)), (X (X (NOT p1)))]
False Knowledge obtained : []
Knowledge based reduction with 6 factoid took 267 ms. Reduced automaton from 5 states, 8 edges and 3 AP to 5 states, 8 edges and 3 AP.
Stuttering acceptance computed with spot in 178 ms :[(OR (NOT p0) (AND (NOT p1) (NOT p2))), (OR (NOT p0) (AND (NOT p1) (NOT p2))), (NOT p0), (NOT p1), true]
Incomplete random walk after 10000 steps, including 2 resets, run finished after 138 ms. (steps per millisecond=72 ) properties (out of 3) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 36 ms. (steps per millisecond=277 ) properties (out of 2) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 37 ms. (steps per millisecond=270 ) properties (out of 2) seen :0
Running SMT prover for 2 properties.
// Phase 1: matrix 282 rows 383 cols
[2022-05-19 10:52:54] [INFO ] Computed 181 place invariants in 1 ms
[2022-05-19 10:52:54] [INFO ] [Real]Absence check using 181 positive place invariants in 23 ms returned sat
[2022-05-19 10:52:55] [INFO ] After 141ms SMT Verify possible using state equation in real domain returned unsat :0 sat :1 real:1
[2022-05-19 10:52:55] [INFO ] After 181ms SMT Verify possible using trap constraints in real domain returned unsat :0 sat :0 real:2
[2022-05-19 10:52:55] [INFO ] After 308ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:2
[2022-05-19 10:52:55] [INFO ] [Nat]Absence check using 181 positive place invariants in 23 ms returned sat
[2022-05-19 10:52:55] [INFO ] After 143ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :2
[2022-05-19 10:52:55] [INFO ] After 256ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :2
Attempting to minimize the solution found.
Minimization took 66 ms.
[2022-05-19 10:52:55] [INFO ] After 438ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :2
Parikh walk visited 0 properties in 60 ms.
Support contains 3 out of 383 places. Attempting structural reductions.
Starting structural reductions in SAFETY mode, iteration 0 : 383/383 places, 282/282 transitions.
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 0 with 1 Pre rules applied. Total rules applied 0 place count 383 transition count 281
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 0 with 2 rules applied. Total rules applied 2 place count 382 transition count 281
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 0 with 2 rules applied. Total rules applied 4 place count 381 transition count 280
Partial Free-agglomeration rule applied 39 times.
Drop transitions removed 39 transitions
Iterating global reduction 0 with 39 rules applied. Total rules applied 43 place count 381 transition count 280
Applied a total of 43 rules in 28 ms. Remains 381 /383 variables (removed 2) and now considering 280/282 (removed 2) transitions.
Finished structural reductions, in 1 iterations. Remains : 381/383 places, 280/282 transitions.
Finished random walk after 632 steps, including 0 resets, run visited all 2 properties in 9 ms. (steps per millisecond=70 )
Knowledge obtained : [(AND p2 p0 (NOT p1)), (X p2), true, (X (X p0)), (X (X p2)), (X (X (NOT p1)))]
False Knowledge obtained : [(F (NOT p2)), (F p1), (F (NOT p0))]
Knowledge based reduction with 6 factoid took 282 ms. Reduced automaton from 5 states, 8 edges and 3 AP to 5 states, 8 edges and 3 AP.
Stuttering acceptance computed with spot in 151 ms :[(OR (NOT p0) (AND (NOT p1) (NOT p2))), (OR (NOT p0) (AND (NOT p1) (NOT p2))), (NOT p0), (NOT p1), true]
Stuttering acceptance computed with spot in 157 ms :[(OR (NOT p0) (AND (NOT p1) (NOT p2))), (OR (NOT p0) (AND (NOT p1) (NOT p2))), (NOT p0), (NOT p1), true]
Support contains 5 out of 383 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 383/383 places, 282/282 transitions.
Applied a total of 0 rules in 8 ms. Remains 383 /383 variables (removed 0) and now considering 282/282 (removed 0) transitions.
// Phase 1: matrix 282 rows 383 cols
[2022-05-19 10:52:56] [INFO ] Computed 181 place invariants in 3 ms
[2022-05-19 10:52:56] [INFO ] Implicit Places using invariants in 193 ms returned []
// Phase 1: matrix 282 rows 383 cols
[2022-05-19 10:52:56] [INFO ] Computed 181 place invariants in 4 ms
[2022-05-19 10:52:56] [INFO ] Implicit Places using invariants and state equation in 333 ms returned []
Implicit Place search using SMT with State Equation took 527 ms to find 0 implicit places.
// Phase 1: matrix 282 rows 383 cols
[2022-05-19 10:52:56] [INFO ] Computed 181 place invariants in 10 ms
[2022-05-19 10:52:56] [INFO ] Dead Transitions using invariants and state equation in 191 ms found 0 transitions.
Finished structural reductions, in 1 iterations. Remains : 383/383 places, 282/282 transitions.
Computed a total of 1 stabilizing places and 1 stable transitions
Computed a total of 1 stabilizing places and 1 stable transitions
Knowledge obtained : [(AND p2 p0 (NOT p1)), (X p2), true, (X (X p0)), (X (X p2)), (X (X (NOT p1)))]
False Knowledge obtained : []
Knowledge based reduction with 6 factoid took 227 ms. Reduced automaton from 5 states, 8 edges and 3 AP to 5 states, 8 edges and 3 AP.
Stuttering acceptance computed with spot in 160 ms :[(OR (NOT p0) (AND (NOT p1) (NOT p2))), (OR (NOT p0) (AND (NOT p1) (NOT p2))), (NOT p0), (NOT p1), true]
Finished random walk after 1912 steps, including 0 resets, run visited all 3 properties in 34 ms. (steps per millisecond=56 )
Knowledge obtained : [(AND p2 p0 (NOT p1)), (X p2), true, (X (X p0)), (X (X p2)), (X (X (NOT p1)))]
False Knowledge obtained : [(F (NOT p2)), (F p1), (F (NOT p0))]
Knowledge based reduction with 6 factoid took 334 ms. Reduced automaton from 5 states, 8 edges and 3 AP to 5 states, 8 edges and 3 AP.
Stuttering acceptance computed with spot in 168 ms :[(OR (NOT p0) (AND (NOT p1) (NOT p2))), (OR (NOT p0) (AND (NOT p1) (NOT p2))), (NOT p0), (NOT p1), true]
Stuttering acceptance computed with spot in 183 ms :[(OR (NOT p0) (AND (NOT p1) (NOT p2))), (OR (NOT p0) (AND (NOT p1) (NOT p2))), (NOT p0), (NOT p1), true]
Stuttering acceptance computed with spot in 162 ms :[(OR (NOT p0) (AND (NOT p1) (NOT p2))), (OR (NOT p0) (AND (NOT p1) (NOT p2))), (NOT p0), (NOT p1), true]
Product exploration explored 100000 steps with 24937 reset in 541 ms.
Product exploration explored 100000 steps with 24985 reset in 593 ms.
Applying partial POR strategy [false, false, true, true, true]
Stuttering acceptance computed with spot in 179 ms :[(OR (NOT p0) (AND (NOT p1) (NOT p2))), (OR (NOT p0) (AND (NOT p1) (NOT p2))), (NOT p0), (NOT p1), true]
Support contains 5 out of 383 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 383/383 places, 282/282 transitions.
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 0 with 1 Pre rules applied. Total rules applied 0 place count 383 transition count 282
Deduced a syphon composed of 1 places in 0 ms
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 383 transition count 282
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 0
Deduced a syphon composed of 2 places in 0 ms
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 383 transition count 282
Deduced a syphon composed of 2 places in 0 ms
Applied a total of 2 rules in 31 ms. Remains 383 /383 variables (removed 0) and now considering 282/282 (removed 0) transitions.
[2022-05-19 10:52:59] [INFO ] Redundant transitions in 15 ms returned []
// Phase 1: matrix 282 rows 383 cols
[2022-05-19 10:52:59] [INFO ] Computed 181 place invariants in 1 ms
[2022-05-19 10:52:59] [INFO ] Dead Transitions using invariants and state equation in 184 ms found 0 transitions.
Starting structural reductions in SI_LTL mode, iteration 1 : 383/383 places, 282/282 transitions.
Finished structural reductions, in 1 iterations. Remains : 383/383 places, 282/282 transitions.
Product exploration explored 100000 steps with 24893 reset in 1796 ms.
Product exploration explored 100000 steps with 24939 reset in 1824 ms.
Built C files in :
/tmp/ltsmin10440135642991018483
[2022-05-19 10:53:03] [INFO ] Built C files in 21ms conformant to PINS (ltsmin variant)in folder :/tmp/ltsmin10440135642991018483
Running compilation step : cd /tmp/ltsmin10440135642991018483;'/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 712 ms.
Running link step : cd /tmp/ltsmin10440135642991018483;'gcc' '-shared' '-o' 'gal.so' 'model.o'
Link finished in 40 ms.
Running LTSmin : cd /tmp/ltsmin10440135642991018483;'/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/stateBased8364396284684284688.hoa' '--buchi-type=spotba'
LTSmin run took 2088 ms.
FORMULA ShieldIIPt-PT-020A-LTLFireability-07 FALSE TECHNIQUES EXPLICIT LTSMIN SAT_SMT
Treatment of property ShieldIIPt-PT-020A-LTLFireability-07 finished in 14460 ms.
Running Spot : cd /home/mcc/execution;'/home/mcc/BenchKit/bin//..//ltl2tgba' '--check=stutter' '--hoaf=tv' '-f' '!(F((X(F(X(F(p0))))&&p1)))'
Support contains 5 out of 383 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 383/383 places, 282/282 transitions.
Applied a total of 0 rules in 15 ms. Remains 383 /383 variables (removed 0) and now considering 282/282 (removed 0) transitions.
// Phase 1: matrix 282 rows 383 cols
[2022-05-19 10:53:06] [INFO ] Computed 181 place invariants in 1 ms
[2022-05-19 10:53:06] [INFO ] Implicit Places using invariants in 278 ms returned []
// Phase 1: matrix 282 rows 383 cols
[2022-05-19 10:53:06] [INFO ] Computed 181 place invariants in 6 ms
[2022-05-19 10:53:07] [INFO ] Implicit Places using invariants and state equation in 348 ms returned []
Implicit Place search using SMT with State Equation took 628 ms to find 0 implicit places.
// Phase 1: matrix 282 rows 383 cols
[2022-05-19 10:53:07] [INFO ] Computed 181 place invariants in 1 ms
[2022-05-19 10:53:07] [INFO ] Dead Transitions using invariants and state equation in 179 ms found 0 transitions.
Finished structural reductions, in 1 iterations. Remains : 383/383 places, 282/282 transitions.
Stuttering acceptance computed with spot in 118 ms :[(NOT p0), (NOT p0), (OR (NOT p1) (NOT p0))]
Running random walk in product with property : ShieldIIPt-PT-020A-LTLFireability-08 automaton TGBA Formula[mat=[[{ cond=(NOT p0), acceptance={0} source=0 dest: 0}], [{ cond=true, acceptance={} source=1 dest: 0}], [{ cond=p1, acceptance={0} source=2 dest: 1}, { cond=(NOT p1), acceptance={0} source=2 dest: 2}]], initial=2, aps=[p0:(OR (EQ s272 0) (EQ s281 0)), p1:(OR (EQ s305 1) (EQ s31 0) (EQ s56 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][false, false, false]]
Product exploration explored 100000 steps with 33333 reset in 627 ms.
Product exploration explored 100000 steps with 33333 reset in 678 ms.
Computed a total of 1 stabilizing places and 1 stable transitions
Computed a total of 1 stabilizing places and 1 stable transitions
Knowledge obtained : [(AND p0 p1), (X p1), true, (X (X p0)), (X (X p1))]
False Knowledge obtained : []
Property proved to be true thanks to knowledge :(X (X p0))
Knowledge based reduction with 5 factoid took 116 ms. Reduced automaton from 3 states, 4 edges and 2 AP to 1 states, 0 edges and 0 AP.
FORMULA ShieldIIPt-PT-020A-LTLFireability-08 TRUE TECHNIQUES KNOWLEDGE
Treatment of property ShieldIIPt-PT-020A-LTLFireability-08 finished in 2405 ms.
Running Spot : cd /home/mcc/execution;'/home/mcc/BenchKit/bin//..//ltl2tgba' '--check=stutter' '--hoaf=tv' '-f' '!((F(X(p0))||X(p1)))'
Support contains 5 out of 383 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 383/383 places, 282/282 transitions.
Applied a total of 0 rules in 10 ms. Remains 383 /383 variables (removed 0) and now considering 282/282 (removed 0) transitions.
// Phase 1: matrix 282 rows 383 cols
[2022-05-19 10:53:08] [INFO ] Computed 181 place invariants in 1 ms
[2022-05-19 10:53:09] [INFO ] Implicit Places using invariants in 364 ms returned []
// Phase 1: matrix 282 rows 383 cols
[2022-05-19 10:53:09] [INFO ] Computed 181 place invariants in 2 ms
[2022-05-19 10:53:09] [INFO ] Implicit Places using invariants and state equation in 332 ms returned []
Implicit Place search using SMT with State Equation took 697 ms to find 0 implicit places.
// Phase 1: matrix 282 rows 383 cols
[2022-05-19 10:53:09] [INFO ] Computed 181 place invariants in 1 ms
[2022-05-19 10:53:09] [INFO ] Dead Transitions using invariants and state equation in 225 ms found 0 transitions.
Finished structural reductions, in 1 iterations. Remains : 383/383 places, 282/282 transitions.
Stuttering acceptance computed with spot in 136 ms :[(AND (NOT p0) (NOT p1)), (NOT p0), (AND (NOT p0) (NOT p1))]
Running random walk in product with property : ShieldIIPt-PT-020A-LTLFireability-10 automaton TGBA Formula[mat=[[{ cond=true, acceptance={} source=0 dest: 2}], [{ cond=(NOT p0), acceptance={0} source=1 dest: 1}], [{ cond=(AND (NOT p1) (NOT p0)), acceptance={} source=2 dest: 1}]], initial=0, aps=[p0:(OR (EQ s50 0) (EQ s75 0)), p1:(AND (EQ s49 1) (EQ s53 1) (EQ s59 1))], 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][false, false, false]]
Product exploration explored 100000 steps with 50000 reset in 788 ms.
Product exploration explored 100000 steps with 50000 reset in 816 ms.
Computed a total of 1 stabilizing places and 1 stable transitions
Computed a total of 1 stabilizing places and 1 stable transitions
Knowledge obtained : [(AND p0 (NOT p1)), (X (NOT (AND (NOT p1) (NOT p0)))), (X (X p0))]
False Knowledge obtained : []
Property proved to be true thanks to knowledge :(X (NOT (AND (NOT p1) (NOT p0))))
Knowledge based reduction with 3 factoid took 76 ms. Reduced automaton from 3 states, 3 edges and 2 AP to 1 states, 0 edges and 0 AP.
FORMULA ShieldIIPt-PT-020A-LTLFireability-10 TRUE TECHNIQUES KNOWLEDGE
Treatment of property ShieldIIPt-PT-020A-LTLFireability-10 finished in 2771 ms.
Running Spot : cd /home/mcc/execution;'/home/mcc/BenchKit/bin//..//ltl2tgba' '--check=stutter' '--hoaf=tv' '-f' '!((F(p0)&&G(F(p1))))'
Support contains 4 out of 383 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 383/383 places, 282/282 transitions.
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 0 with 1 Pre rules applied. Total rules applied 0 place count 383 transition count 281
Deduced a syphon composed of 1 places in 1 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 0 with 2 rules applied. Total rules applied 2 place count 382 transition count 281
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 0 with 2 rules applied. Total rules applied 4 place count 381 transition count 280
Applied a total of 4 rules in 25 ms. Remains 381 /383 variables (removed 2) and now considering 280/282 (removed 2) transitions.
// Phase 1: matrix 280 rows 381 cols
[2022-05-19 10:53:11] [INFO ] Computed 181 place invariants in 0 ms
[2022-05-19 10:53:11] [INFO ] Implicit Places using invariants in 194 ms returned [373, 374]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 195 ms to find 2 implicit places.
Starting structural reductions in SI_LTL mode, iteration 1 : 379/383 places, 280/282 transitions.
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 0 with 1 Pre rules applied. Total rules applied 0 place count 379 transition count 279
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 0 with 2 rules applied. Total rules applied 2 place count 378 transition count 279
Applied a total of 2 rules in 11 ms. Remains 378 /379 variables (removed 1) and now considering 279/280 (removed 1) transitions.
// Phase 1: matrix 279 rows 378 cols
[2022-05-19 10:53:11] [INFO ] Computed 179 place invariants in 0 ms
[2022-05-19 10:53:12] [INFO ] Implicit Places using invariants in 183 ms returned [367]
Discarding 1 places :
Implicit Place search using SMT only with invariants took 185 ms to find 1 implicit places.
Starting structural reductions in SI_LTL mode, iteration 2 : 377/383 places, 279/282 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 0 with 2 rules applied. Total rules applied 2 place count 376 transition count 278
Applied a total of 2 rules in 12 ms. Remains 376 /377 variables (removed 1) and now considering 278/279 (removed 1) transitions.
// Phase 1: matrix 278 rows 376 cols
[2022-05-19 10:53:12] [INFO ] Computed 178 place invariants in 1 ms
[2022-05-19 10:53:12] [INFO ] Implicit Places using invariants in 189 ms returned []
// Phase 1: matrix 278 rows 376 cols
[2022-05-19 10:53:12] [INFO ] Computed 178 place invariants in 1 ms
[2022-05-19 10:53:12] [INFO ] Implicit Places using invariants and state equation in 307 ms returned []
Implicit Place search using SMT with State Equation took 497 ms to find 0 implicit places.
Starting structural reductions in SI_LTL mode, iteration 3 : 376/383 places, 278/282 transitions.
Finished structural reductions, in 3 iterations. Remains : 376/383 places, 278/282 transitions.
Stuttering acceptance computed with spot in 140 ms :[(OR (NOT p0) (NOT p1)), (NOT p0), (NOT p1), (NOT p1)]
Running random walk in product with property : ShieldIIPt-PT-020A-LTLFireability-11 automaton TGBA Formula[mat=[[{ cond=(NOT p0), acceptance={} source=0 dest: 1}, { cond=(NOT p1), acceptance={} source=0 dest: 2}, { cond=true, acceptance={} source=0 dest: 3}], [{ cond=(NOT p0), acceptance={0} source=1 dest: 1}], [{ cond=(NOT p1), acceptance={0} source=2 dest: 2}], [{ cond=(NOT p1), acceptance={} source=3 dest: 2}, { cond=true, acceptance={} source=3 dest: 3}]], initial=0, aps=[p0:(AND (EQ s120 1) (EQ s129 1)), p1:(OR (EQ s354 0) (EQ s372 0))], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, no-univ-branch, stutter-invariant, very-weak, weak, inherently-weak], stateDesc=[null, null, null, null][true, true, true, true]]
Product exploration explored 100000 steps with 2 reset in 381 ms.
Stack based approach found an accepted trace after 303 steps with 1 reset with depth 299 and stack size 299 in 2 ms.
FORMULA ShieldIIPt-PT-020A-LTLFireability-11 FALSE TECHNIQUES STACK_TEST
Treatment of property ShieldIIPt-PT-020A-LTLFireability-11 finished in 1462 ms.
Running Spot : cd /home/mcc/execution;'/home/mcc/BenchKit/bin//..//ltl2tgba' '--check=stutter' '--hoaf=tv' '-f' '!(F(G(X(F(X((G(F(G(p0)))||p1)))))))'
Support contains 3 out of 383 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 383/383 places, 282/282 transitions.
Reduce places removed 1 places and 1 transitions.
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 0 with 1 Pre rules applied. Total rules applied 0 place count 382 transition count 280
Deduced a syphon composed of 1 places in 1 ms
Reduce places removed 2 places and 0 transitions.
Iterating global reduction 0 with 3 rules applied. Total rules applied 3 place count 380 transition count 280
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 2 places and 0 transitions.
Iterating global reduction 0 with 3 rules applied. Total rules applied 6 place count 378 transition count 279
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 0 with 1 Pre rules applied. Total rules applied 6 place count 378 transition count 278
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 0 with 2 rules applied. Total rules applied 8 place count 377 transition count 278
Applied a total of 8 rules in 23 ms. Remains 377 /383 variables (removed 6) and now considering 278/282 (removed 4) transitions.
// Phase 1: matrix 278 rows 377 cols
[2022-05-19 10:53:13] [INFO ] Computed 179 place invariants in 6 ms
[2022-05-19 10:53:13] [INFO ] Implicit Places using invariants in 193 ms returned [366]
Discarding 1 places :
Implicit Place search using SMT only with invariants took 196 ms to find 1 implicit places.
Starting structural reductions in SI_LTL mode, iteration 1 : 376/383 places, 278/282 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 1 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 0 with 2 rules applied. Total rules applied 2 place count 375 transition count 277
Applied a total of 2 rules in 17 ms. Remains 375 /376 variables (removed 1) and now considering 277/278 (removed 1) transitions.
// Phase 1: matrix 277 rows 375 cols
[2022-05-19 10:53:13] [INFO ] Computed 178 place invariants in 1 ms
[2022-05-19 10:53:13] [INFO ] Implicit Places using invariants in 173 ms returned []
// Phase 1: matrix 277 rows 375 cols
[2022-05-19 10:53:13] [INFO ] Computed 178 place invariants in 5 ms
[2022-05-19 10:53:13] [INFO ] Implicit Places using invariants and state equation in 294 ms returned []
Implicit Place search using SMT with State Equation took 469 ms to find 0 implicit places.
Starting structural reductions in SI_LTL mode, iteration 2 : 375/383 places, 277/282 transitions.
Finished structural reductions, in 2 iterations. Remains : 375/383 places, 277/282 transitions.
Stuttering acceptance computed with spot in 205 ms :[(AND (NOT p0) (NOT p1)), (AND (NOT p0) (NOT p1))]
Running random walk in product with property : ShieldIIPt-PT-020A-LTLFireability-12 automaton TGBA Formula[mat=[[{ cond=true, acceptance={} source=0 dest: 0}, { cond=(AND (NOT p0) (NOT p1)), acceptance={} source=0 dest: 1}], [{ cond=(AND p0 (NOT p1)), acceptance={} source=1 dest: 1}, { cond=(AND (NOT p0) (NOT p1)), acceptance={0} source=1 dest: 1}]], initial=0, aps=[p0:(EQ s32 1), p1:(AND (EQ s6 1) (EQ s8 1))], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, no-univ-branch, stutter-invariant], stateDesc=[null, null][true, true]]
Product exploration explored 100000 steps with 0 reset in 395 ms.
Stack based approach found an accepted trace after 275 steps with 0 reset with depth 276 and stack size 276 in 2 ms.
FORMULA ShieldIIPt-PT-020A-LTLFireability-12 FALSE TECHNIQUES STACK_TEST
Treatment of property ShieldIIPt-PT-020A-LTLFireability-12 finished in 1330 ms.
Running Spot : cd /home/mcc/execution;'/home/mcc/BenchKit/bin//..//ltl2tgba' '--check=stutter' '--hoaf=tv' '-f' '!((p0 U F(G((F(p0)||X(p1))))))'
Support contains 3 out of 383 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 383/383 places, 282/282 transitions.
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 0 with 1 Pre rules applied. Total rules applied 0 place count 383 transition count 281
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 0 with 2 rules applied. Total rules applied 2 place count 382 transition count 281
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 0 with 2 rules applied. Total rules applied 4 place count 381 transition count 280
Applied a total of 4 rules in 16 ms. Remains 381 /383 variables (removed 2) and now considering 280/282 (removed 2) transitions.
// Phase 1: matrix 280 rows 381 cols
[2022-05-19 10:53:14] [INFO ] Computed 181 place invariants in 2 ms
[2022-05-19 10:53:14] [INFO ] Implicit Places using invariants in 192 ms returned [373, 374]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 193 ms to find 2 implicit places.
Starting structural reductions in SI_LTL mode, iteration 1 : 379/383 places, 280/282 transitions.
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 0 with 1 Pre rules applied. Total rules applied 0 place count 379 transition count 279
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 0 with 2 rules applied. Total rules applied 2 place count 378 transition count 279
Applied a total of 2 rules in 8 ms. Remains 378 /379 variables (removed 1) and now considering 279/280 (removed 1) transitions.
// Phase 1: matrix 279 rows 378 cols
[2022-05-19 10:53:14] [INFO ] Computed 179 place invariants in 1 ms
[2022-05-19 10:53:14] [INFO ] Implicit Places using invariants in 185 ms returned [367]
Discarding 1 places :
Implicit Place search using SMT only with invariants took 186 ms to find 1 implicit places.
Starting structural reductions in SI_LTL mode, iteration 2 : 377/383 places, 279/282 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 0 with 2 rules applied. Total rules applied 2 place count 376 transition count 278
Applied a total of 2 rules in 11 ms. Remains 376 /377 variables (removed 1) and now considering 278/279 (removed 1) transitions.
// Phase 1: matrix 278 rows 376 cols
[2022-05-19 10:53:14] [INFO ] Computed 178 place invariants in 1 ms
[2022-05-19 10:53:15] [INFO ] Implicit Places using invariants in 176 ms returned []
// Phase 1: matrix 278 rows 376 cols
[2022-05-19 10:53:15] [INFO ] Computed 178 place invariants in 1 ms
[2022-05-19 10:53:15] [INFO ] Implicit Places using invariants and state equation in 299 ms returned []
Implicit Place search using SMT with State Equation took 476 ms to find 0 implicit places.
Starting structural reductions in SI_LTL mode, iteration 3 : 376/383 places, 278/282 transitions.
Finished structural reductions, in 3 iterations. Remains : 376/383 places, 278/282 transitions.
Stuttering acceptance computed with spot in 73 ms :[(AND (NOT p1) (NOT p0)), (AND (NOT p1) (NOT p0))]
Running random walk in product with property : ShieldIIPt-PT-020A-LTLFireability-13 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 s1 1) (EQ s18 1)), p0:(EQ s208 1)], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, no-univ-branch, stutter-invariant], stateDesc=[null, null][true, true]]
Product exploration explored 100000 steps with 63 reset in 407 ms.
Stack based approach found an accepted trace after 4 steps with 0 reset with depth 5 and stack size 5 in 0 ms.
FORMULA ShieldIIPt-PT-020A-LTLFireability-13 FALSE TECHNIQUES STACK_TEST
Treatment of property ShieldIIPt-PT-020A-LTLFireability-13 finished in 1392 ms.
Running Spot : cd /home/mcc/execution;'/home/mcc/BenchKit/bin//..//ltl2tgba' '--check=stutter' '--hoaf=tv' '-f' '!(F(X(X(G(p0)))))'
Support contains 2 out of 383 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 383/383 places, 282/282 transitions.
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 0 with 1 Pre rules applied. Total rules applied 0 place count 383 transition count 281
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 0 with 2 rules applied. Total rules applied 2 place count 382 transition count 281
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 1 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 0 with 2 rules applied. Total rules applied 4 place count 381 transition count 280
Applied a total of 4 rules in 11 ms. Remains 381 /383 variables (removed 2) and now considering 280/282 (removed 2) transitions.
// Phase 1: matrix 280 rows 381 cols
[2022-05-19 10:53:15] [INFO ] Computed 181 place invariants in 0 ms
[2022-05-19 10:53:16] [INFO ] Implicit Places using invariants in 352 ms returned [373, 374]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 353 ms to find 2 implicit places.
Starting structural reductions in SI_LTL mode, iteration 1 : 379/383 places, 280/282 transitions.
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 0 with 1 Pre rules applied. Total rules applied 0 place count 379 transition count 279
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 0 with 2 rules applied. Total rules applied 2 place count 378 transition count 279
Applied a total of 2 rules in 7 ms. Remains 378 /379 variables (removed 1) and now considering 279/280 (removed 1) transitions.
// Phase 1: matrix 279 rows 378 cols
[2022-05-19 10:53:16] [INFO ] Computed 179 place invariants in 2 ms
[2022-05-19 10:53:16] [INFO ] Implicit Places using invariants in 201 ms returned [367]
Discarding 1 places :
Implicit Place search using SMT only with invariants took 215 ms to find 1 implicit places.
Starting structural reductions in SI_LTL mode, iteration 2 : 377/383 places, 279/282 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 0 with 2 rules applied. Total rules applied 2 place count 376 transition count 278
Applied a total of 2 rules in 9 ms. Remains 376 /377 variables (removed 1) and now considering 278/279 (removed 1) transitions.
// Phase 1: matrix 278 rows 376 cols
[2022-05-19 10:53:16] [INFO ] Computed 178 place invariants in 1 ms
[2022-05-19 10:53:16] [INFO ] Implicit Places using invariants in 182 ms returned []
// Phase 1: matrix 278 rows 376 cols
[2022-05-19 10:53:16] [INFO ] Computed 178 place invariants in 1 ms
[2022-05-19 10:53:16] [INFO ] Implicit Places using invariants and state equation in 290 ms returned []
Implicit Place search using SMT with State Equation took 484 ms to find 0 implicit places.
Starting structural reductions in SI_LTL mode, iteration 3 : 376/383 places, 278/282 transitions.
Finished structural reductions, in 3 iterations. Remains : 376/383 places, 278/282 transitions.
Stuttering acceptance computed with spot in 40 ms :[(NOT p0)]
Running random walk in product with property : ShieldIIPt-PT-020A-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 s299 1) (EQ s314 1))], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, complete, deterministic, no-univ-branch, unambiguous, semi-deterministic, stutter-invariant], stateDesc=[null][true]]
Product exploration explored 100000 steps with 0 reset in 393 ms.
Stack based approach found an accepted trace after 11 steps with 0 reset with depth 12 and stack size 12 in 0 ms.
FORMULA ShieldIIPt-PT-020A-LTLFireability-14 FALSE TECHNIQUES STACK_TEST
Treatment of property ShieldIIPt-PT-020A-LTLFireability-14 finished in 1527 ms.
Running Spot : cd /home/mcc/execution;'/home/mcc/BenchKit/bin//..//ltl2tgba' '--check=stutter' '--hoaf=tv' '-f' '!(F((F((G(p2)&&p1))&&X(p3)&&p0)))'
Support contains 9 out of 383 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 383/383 places, 282/282 transitions.
Applied a total of 0 rules in 6 ms. Remains 383 /383 variables (removed 0) and now considering 282/282 (removed 0) transitions.
// Phase 1: matrix 282 rows 383 cols
[2022-05-19 10:53:17] [INFO ] Computed 181 place invariants in 1 ms
[2022-05-19 10:53:17] [INFO ] Implicit Places using invariants in 193 ms returned []
// Phase 1: matrix 282 rows 383 cols
[2022-05-19 10:53:17] [INFO ] Computed 181 place invariants in 1 ms
[2022-05-19 10:53:17] [INFO ] Implicit Places using invariants and state equation in 304 ms returned []
Implicit Place search using SMT with State Equation took 509 ms to find 0 implicit places.
// Phase 1: matrix 282 rows 383 cols
[2022-05-19 10:53:17] [INFO ] Computed 181 place invariants in 2 ms
[2022-05-19 10:53:18] [INFO ] Dead Transitions using invariants and state equation in 167 ms found 0 transitions.
Finished structural reductions, in 1 iterations. Remains : 383/383 places, 282/282 transitions.
Stuttering acceptance computed with spot in 183 ms :[(OR (NOT p0) (NOT p1) (NOT p2) (NOT p3)), (OR (NOT p2) (NOT p1)), (NOT p3), (NOT p2)]
Running random walk in product with property : ShieldIIPt-PT-020A-LTLFireability-15 automaton TGBA Formula[mat=[[{ cond=(NOT p0), acceptance={0} source=0 dest: 0}, { cond=(OR (AND p0 (NOT p1)) (AND p0 (NOT p2))), acceptance={} source=0 dest: 1}, { cond=p0, acceptance={0} source=0 dest: 2}, { cond=(AND p0 p1 p2), acceptance={} source=0 dest: 3}], [{ cond=(OR (NOT p1) (NOT p2)), acceptance={0} source=1 dest: 1}, { cond=(AND p1 p2), acceptance={} source=1 dest: 3}], [{ cond=(AND (NOT p0) (NOT p3)), acceptance={0} source=2 dest: 0}, { cond=(OR (AND p0 (NOT p1) (NOT p3)) (AND p0 (NOT p2) (NOT p3))), acceptance={} source=2 dest: 1}, { cond=(AND p0 (NOT p3)), acceptance={0} source=2 dest: 2}, { cond=(AND p0 p1 p2 (NOT p3)), acceptance={} source=2 dest: 3}], [{ cond=(NOT p2), acceptance={0} source=3 dest: 1}, { cond=p2, acceptance={} source=3 dest: 3}]], initial=0, aps=[p0:(AND (EQ s280 1) (EQ s295 1)), p1:(AND (EQ s280 1) (EQ s295 1)), p2:(AND (EQ s241 1) (EQ s247 1) (EQ s249 1) (EQ s146 1) (EQ s152 1) (EQ s154 1)), p3:(...], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, no-univ-branch, stutter-sensitive], stateDesc=[null, null, null, null][false, false, false, false]]
Product exploration explored 100000 steps with 0 reset in 398 ms.
Stack based approach found an accepted trace after 4 steps with 0 reset with depth 5 and stack size 5 in 0 ms.
FORMULA ShieldIIPt-PT-020A-LTLFireability-15 FALSE TECHNIQUES STACK_TEST
Treatment of property ShieldIIPt-PT-020A-LTLFireability-15 finished in 1297 ms.
All properties solved by simple procedures.
Total runtime 37811 ms.

BK_STOP 1652957598758

--------------------
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="ShieldIIPt-PT-020A"
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 ShieldIIPt-PT-020A, 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 r222-tall-165286025000276"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/ShieldIIPt-PT-020A.tgz
mv ShieldIIPt-PT-020A 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 ;