Execution Chart

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

Trace from the execution

Formatting '/data/fkordon/mcc2024-input.r329-tall-171662361900283.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2024-input.qcow2 backing_fmt=qcow2 cluster_size=65536 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
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=====================================================================
Generated by BenchKit 2-5568
Executing tool gold2023
Input is Raft-PT-08, examination is LTLFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r329-tall-171662361900283
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 600K
-rw-r--r-- 1 mcc users 6.6K May 14 13:22 CTLCardinality.txt
-rw-r--r-- 1 mcc users 71K May 14 13:22 CTLCardinality.xml
-rw-r--r-- 1 mcc users 4.6K May 14 13:22 CTLFireability.txt
-rw-r--r-- 1 mcc users 43K May 14 13:22 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K May 18 16:43 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.2K May 18 16:43 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 3.3K Apr 23 07:46 LTLCardinality.txt
-rw-r--r-- 1 mcc users 25K Apr 23 07:46 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.0K Apr 23 07:46 LTLFireability.txt
-rw-r--r-- 1 mcc users 16K Apr 23 07:46 LTLFireability.xml
-rw-r--r-- 1 mcc users 9.6K Apr 11 18:05 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 101K Apr 11 18:05 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 11K Apr 11 17:58 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 95K Apr 11 17:58 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.5K Apr 23 07:46 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.5K Apr 23 07:46 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 May 18 16:43 equiv_col
-rw-r--r-- 1 mcc users 3 May 18 16:43 instance
-rw-r--r-- 1 mcc users 6 May 18 16:43 iscolored
-rw-r--r-- 1 mcc users 156K May 18 16:43 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 Raft-PT-08-LTLFireability-00
FORMULA_NAME Raft-PT-08-LTLFireability-01
FORMULA_NAME Raft-PT-08-LTLFireability-02
FORMULA_NAME Raft-PT-08-LTLFireability-03
FORMULA_NAME Raft-PT-08-LTLFireability-04
FORMULA_NAME Raft-PT-08-LTLFireability-05
FORMULA_NAME Raft-PT-08-LTLFireability-06
FORMULA_NAME Raft-PT-08-LTLFireability-07
FORMULA_NAME Raft-PT-08-LTLFireability-08
FORMULA_NAME Raft-PT-08-LTLFireability-09
FORMULA_NAME Raft-PT-08-LTLFireability-10
FORMULA_NAME Raft-PT-08-LTLFireability-11
FORMULA_NAME Raft-PT-08-LTLFireability-12
FORMULA_NAME Raft-PT-08-LTLFireability-13
FORMULA_NAME Raft-PT-08-LTLFireability-14
FORMULA_NAME Raft-PT-08-LTLFireability-15

=== Now, execution of the tool begins

BK_START 1716856859784

bash -c /home/mcc/BenchKit/BenchKit_head.sh 2> STDERR ; echo ; echo -n "BK_STOP " ; date -u +%s%3N
Invoking MCC driver with
BK_TOOL=gold2023
BK_EXAMINATION=LTLFireability
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=Raft-PT-08
Not applying reductions.
Model is PT
LTLFireability PT
Running Version 202304061127
[2024-05-28 00:41:01] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, LTLFireability, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2024-05-28 00:41:01] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2024-05-28 00:41:01] [INFO ] Load time of PNML (sax parser for PT used): 72 ms
[2024-05-28 00:41:01] [INFO ] Transformed 328 places.
[2024-05-28 00:41:01] [INFO ] Transformed 568 transitions.
[2024-05-28 00:41:01] [INFO ] Found NUPN structural information;
[2024-05-28 00:41:01] [INFO ] Parsed PT model containing 328 places and 568 transitions and 2163 arcs in 136 ms.
Parsed 16 properties from file /home/mcc/execution/LTLFireability.xml in 7 ms.
Working with output stream class java.io.PrintStream
Initial state reduction rules removed 3 formulas.
Ensure Unique test removed 34 transitions
Reduce redundant transitions removed 34 transitions.
FORMULA Raft-PT-08-LTLFireability-00 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA Raft-PT-08-LTLFireability-08 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA Raft-PT-08-LTLFireability-15 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Support contains 40 out of 328 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 328/328 places, 534/534 transitions.
Discarding 5 places :
Symmetric choice reduction at 0 with 5 rule applications. Total rules 5 place count 323 transition count 524
Iterating global reduction 0 with 5 rules applied. Total rules applied 10 place count 323 transition count 524
Applied a total of 10 rules in 49 ms. Remains 323 /328 variables (removed 5) and now considering 524/534 (removed 10) transitions.
[2024-05-28 00:41:01] [INFO ] Flow matrix only has 493 transitions (discarded 31 similar events)
// Phase 1: matrix 493 rows 323 cols
[2024-05-28 00:41:01] [INFO ] Computed 64 invariants in 22 ms
[2024-05-28 00:41:02] [INFO ] Implicit Places using invariants in 505 ms returned []
[2024-05-28 00:41:02] [INFO ] Flow matrix only has 493 transitions (discarded 31 similar events)
[2024-05-28 00:41:02] [INFO ] Invariant cache hit.
[2024-05-28 00:41:02] [INFO ] State equation strengthened by 284 read => feed constraints.
[2024-05-28 00:41:02] [INFO ] Implicit Places using invariants and state equation in 496 ms returned []
Implicit Place search using SMT with State Equation took 1024 ms to find 0 implicit places.
[2024-05-28 00:41:02] [INFO ] Flow matrix only has 493 transitions (discarded 31 similar events)
[2024-05-28 00:41:02] [INFO ] Invariant cache hit.
[2024-05-28 00:41:02] [INFO ] Dead Transitions using invariants and state equation in 192 ms found 0 transitions.
Starting structural reductions in LTL mode, iteration 1 : 323/328 places, 524/534 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 1267 ms. Remains : 323/328 places, 524/534 transitions.
Support contains 40 out of 323 places after structural reductions.
[2024-05-28 00:41:03] [INFO ] Flatten gal took : 70 ms
[2024-05-28 00:41:03] [INFO ] Flatten gal took : 33 ms
[2024-05-28 00:41:03] [INFO ] Input system was already deterministic with 524 transitions.
Support contains 39 out of 323 places (down from 40) after GAL structural reductions.
Incomplete random walk after 10000 steps, including 2 resets, run finished after 384 ms. (steps per millisecond=26 ) properties (out of 27) seen :24
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 23 ms. (steps per millisecond=434 ) properties (out of 3) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 18 ms. (steps per millisecond=555 ) properties (out of 3) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 18 ms. (steps per millisecond=555 ) properties (out of 3) seen :0
Running SMT prover for 3 properties.
[2024-05-28 00:41:03] [INFO ] Flow matrix only has 493 transitions (discarded 31 similar events)
[2024-05-28 00:41:03] [INFO ] Invariant cache hit.
[2024-05-28 00:41:03] [INFO ] [Real]Absence check using 64 positive place invariants in 20 ms returned sat
[2024-05-28 00:41:04] [INFO ] After 383ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:3
[2024-05-28 00:41:04] [INFO ] [Nat]Absence check using 64 positive place invariants in 117 ms returned sat
[2024-05-28 00:41:04] [INFO ] After 185ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :3
[2024-05-28 00:41:04] [INFO ] State equation strengthened by 284 read => feed constraints.
[2024-05-28 00:41:04] [INFO ] After 91ms SMT Verify possible using 284 Read/Feed constraints in natural domain returned unsat :0 sat :3
[2024-05-28 00:41:04] [INFO ] Deduced a trap composed of 65 places in 109 ms of which 7 ms to minimize.
[2024-05-28 00:41:04] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 143 ms
[2024-05-28 00:41:04] [INFO ] After 325ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :3
Attempting to minimize the solution found.
Minimization took 65 ms.
[2024-05-28 00:41:04] [INFO ] After 820ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :3
Parikh walk visited 0 properties in 16 ms.
Support contains 6 out of 323 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 323/323 places, 524/524 transitions.
Drop transitions removed 9 transitions
Reduce isomorphic transitions removed 9 transitions.
Iterating post reduction 0 with 9 rules applied. Total rules applied 9 place count 323 transition count 515
Discarding 2 places :
Symmetric choice reduction at 1 with 2 rule applications. Total rules 11 place count 321 transition count 511
Iterating global reduction 1 with 2 rules applied. Total rules applied 13 place count 321 transition count 511
Performed 7 Post agglomeration using F-continuation condition.Transition count delta: 7
Deduced a syphon composed of 7 places in 0 ms
Reduce places removed 7 places and 0 transitions.
Iterating global reduction 1 with 14 rules applied. Total rules applied 27 place count 314 transition count 504
Discarding 49 places :
Symmetric choice reduction at 1 with 49 rule applications. Total rules 76 place count 265 transition count 455
Iterating global reduction 1 with 49 rules applied. Total rules applied 125 place count 265 transition count 455
Ensure Unique test removed 49 transitions
Reduce isomorphic transitions removed 49 transitions.
Iterating post reduction 1 with 49 rules applied. Total rules applied 174 place count 265 transition count 406
Performed 6 Post agglomeration using F-continuation condition.Transition count delta: -30
Deduced a syphon composed of 6 places in 1 ms
Reduce places removed 6 places and 0 transitions.
Iterating global reduction 2 with 12 rules applied. Total rules applied 186 place count 259 transition count 436
Drop transitions removed 44 transitions
Redundant transition composition rules discarded 44 transitions
Iterating global reduction 2 with 44 rules applied. Total rules applied 230 place count 259 transition count 392
Discarding 42 places :
Symmetric choice reduction at 2 with 42 rule applications. Total rules 272 place count 217 transition count 350
Iterating global reduction 2 with 42 rules applied. Total rules applied 314 place count 217 transition count 350
Ensure Unique test removed 42 transitions
Reduce isomorphic transitions removed 42 transitions.
Iterating post reduction 2 with 42 rules applied. Total rules applied 356 place count 217 transition count 308
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 3 with 2 rules applied. Total rules applied 358 place count 216 transition count 307
Discarding 7 places :
Symmetric choice reduction at 3 with 7 rule applications. Total rules 365 place count 209 transition count 300
Iterating global reduction 3 with 7 rules applied. Total rules applied 372 place count 209 transition count 300
Ensure Unique test removed 7 transitions
Reduce isomorphic transitions removed 7 transitions.
Iterating post reduction 3 with 7 rules applied. Total rules applied 379 place count 209 transition count 293
Applied a total of 379 rules in 95 ms. Remains 209 /323 variables (removed 114) and now considering 293/524 (removed 231) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 96 ms. Remains : 209/323 places, 293/524 transitions.
Finished random walk after 330 steps, including 0 resets, run visited all 3 properties in 6 ms. (steps per millisecond=55 )
Parikh walk visited 0 properties in 0 ms.
Computed a total of 5 stabilizing places and 19 stable transitions
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202304061127/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!((X(p0)&&F((p1 U (p2||G(p1))))))'
Support contains 8 out of 323 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 323/323 places, 524/524 transitions.
Discarding 3 places :
Symmetric choice reduction at 0 with 3 rule applications. Total rules 3 place count 320 transition count 518
Iterating global reduction 0 with 3 rules applied. Total rules applied 6 place count 320 transition count 518
Applied a total of 6 rules in 11 ms. Remains 320 /323 variables (removed 3) and now considering 518/524 (removed 6) transitions.
[2024-05-28 00:41:05] [INFO ] Flow matrix only has 490 transitions (discarded 28 similar events)
// Phase 1: matrix 490 rows 320 cols
[2024-05-28 00:41:05] [INFO ] Computed 64 invariants in 2 ms
[2024-05-28 00:41:05] [INFO ] Implicit Places using invariants in 182 ms returned []
[2024-05-28 00:41:05] [INFO ] Flow matrix only has 490 transitions (discarded 28 similar events)
[2024-05-28 00:41:05] [INFO ] Invariant cache hit.
[2024-05-28 00:41:05] [INFO ] State equation strengthened by 284 read => feed constraints.
[2024-05-28 00:41:06] [INFO ] Implicit Places using invariants and state equation in 613 ms returned []
Implicit Place search using SMT with State Equation took 800 ms to find 0 implicit places.
[2024-05-28 00:41:06] [INFO ] Flow matrix only has 490 transitions (discarded 28 similar events)
[2024-05-28 00:41:06] [INFO ] Invariant cache hit.
[2024-05-28 00:41:06] [INFO ] Dead Transitions using invariants and state equation in 182 ms found 0 transitions.
Starting structural reductions in LTL mode, iteration 1 : 320/323 places, 518/524 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 994 ms. Remains : 320/323 places, 518/524 transitions.
ANTLR Tool version 4.9.3 used for code generation does not match the current runtime version 4.7.2ANTLR Runtime version 4.9.3 used for parser compilation does not match the current runtime version 4.7.2ANTLR Tool version 4.9.3 used for code generation does not match the current runtime version 4.7.2ANTLR Runtime version 4.9.3 used for parser compilation does not match the current runtime version 4.7.2Stuttering acceptance computed with spot in 231 ms :[(OR (NOT p0) (AND (NOT p1) (NOT p2))), (NOT p0), (AND (NOT p2) (NOT p1)), true]
Running random walk in product with property : Raft-PT-08-LTLFireability-01 automaton TGBA Formula[mat=[[{ cond=true, acceptance={} source=0 dest: 1}, { cond=(NOT p2), acceptance={} source=0 dest: 2}], [{ cond=(NOT p0), acceptance={} source=1 dest: 3}], [{ cond=(AND (NOT p2) p1), acceptance={} source=2 dest: 2}, { cond=(AND (NOT p2) (NOT p1)), acceptance={0} source=2 dest: 2}], [{ cond=true, acceptance={0} source=3 dest: 3}]], initial=0, aps=[p2:(AND (EQ s105 1) (EQ s292 1) (EQ s5 1) (EQ s284 1)), p0:(AND (OR (EQ s92 0) (EQ s304 0) (AND (EQ s270 1) (EQ s312 1))) (OR (EQ s92 0) (EQ s304 0))), p1...], 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 50000 reset in 1250 ms.
Product exploration explored 100000 steps with 50000 reset in 1064 ms.
Computed a total of 5 stabilizing places and 19 stable transitions
Computed a total of 5 stabilizing places and 19 stable transitions
Knowledge obtained : [(AND (NOT p2) p0 (NOT p1)), (X p0), (X (NOT (AND (NOT p2) p1))), (X (NOT (AND (NOT p2) (NOT p1)))), true]
False Knowledge obtained : [(X (X (AND (NOT p2) p1))), (X (X (NOT (AND (NOT p2) p1)))), (X (X (AND (NOT p2) (NOT p1)))), (X (X (NOT (AND (NOT p2) (NOT p1)))))]
Property proved to be true thanks to conjunction of knowledge (Minato strategy)
Knowledge based reduction with 5 factoid took 85 ms. Reduced automaton from 4 states, 6 edges and 3 AP (stutter sensitive) to 1 states, 0 edges and 0 AP (stutter insensitive).
FORMULA Raft-PT-08-LTLFireability-01 TRUE TECHNIQUES KNOWLEDGE
Treatment of property Raft-PT-08-LTLFireability-01 finished in 3681 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202304061127/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X(X(G(((G(p0)||F(G(p1))) U p1)))))'
Support contains 3 out of 323 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 323/323 places, 524/524 transitions.
Discarding 3 places :
Symmetric choice reduction at 0 with 3 rule applications. Total rules 3 place count 320 transition count 518
Iterating global reduction 0 with 3 rules applied. Total rules applied 6 place count 320 transition count 518
Applied a total of 6 rules in 17 ms. Remains 320 /323 variables (removed 3) and now considering 518/524 (removed 6) transitions.
[2024-05-28 00:41:08] [INFO ] Flow matrix only has 490 transitions (discarded 28 similar events)
[2024-05-28 00:41:08] [INFO ] Invariant cache hit.
[2024-05-28 00:41:09] [INFO ] Implicit Places using invariants in 128 ms returned []
[2024-05-28 00:41:09] [INFO ] Flow matrix only has 490 transitions (discarded 28 similar events)
[2024-05-28 00:41:09] [INFO ] Invariant cache hit.
[2024-05-28 00:41:09] [INFO ] State equation strengthened by 284 read => feed constraints.
[2024-05-28 00:41:09] [INFO ] Implicit Places using invariants and state equation in 492 ms returned []
Implicit Place search using SMT with State Equation took 625 ms to find 0 implicit places.
[2024-05-28 00:41:09] [INFO ] Flow matrix only has 490 transitions (discarded 28 similar events)
[2024-05-28 00:41:09] [INFO ] Invariant cache hit.
[2024-05-28 00:41:09] [INFO ] Dead Transitions using invariants and state equation in 183 ms found 0 transitions.
Starting structural reductions in LTL mode, iteration 1 : 320/323 places, 518/524 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 825 ms. Remains : 320/323 places, 518/524 transitions.
Stuttering acceptance computed with spot in 223 ms :[(NOT p1), (NOT p1), (NOT p1), (NOT p1), (AND (NOT p1) (NOT p0)), (NOT p1)]
Running random walk in product with property : Raft-PT-08-LTLFireability-02 automaton TGBA Formula[mat=[[{ cond=true, acceptance={} source=0 dest: 1}], [{ cond=true, acceptance={} source=1 dest: 2}], [{ cond=(OR p1 p0), acceptance={} source=2 dest: 2}, { cond=(AND (NOT p1) (NOT p0)), acceptance={} source=2 dest: 3}, { cond=(AND (NOT p1) p0), acceptance={} source=2 dest: 4}, { cond=(AND (NOT p1) p0), acceptance={} source=2 dest: 5}], [{ cond=p1, acceptance={} source=3 dest: 3}, { cond=(NOT p1), acceptance={0} source=3 dest: 3}], [{ cond=(NOT p0), acceptance={} source=4 dest: 3}, { cond=p0, acceptance={} source=4 dest: 4}], [{ cond=(AND (NOT p1) (NOT p0)), acceptance={} source=5 dest: 3}, { cond=(AND (NOT p1) p0), acceptance={} source=5 dest: 4}, { cond=(AND (NOT p1) p0), acceptance={0} source=5 dest: 5}]], initial=0, aps=[p1:(AND (EQ s1 1) (EQ s288 1)), p0:(AND (EQ s288 1) (EQ s315 1))], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, no-univ-branch, stutter-sensitive], stateDesc=[null, null, null, null, null, null][false, false, false, false, false, false]]
Stuttering criterion allowed to conclude after 1 steps with 0 reset in 0 ms.
FORMULA Raft-PT-08-LTLFireability-02 FALSE TECHNIQUES STUTTER_TEST
Treatment of property Raft-PT-08-LTLFireability-02 finished in 1065 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202304061127/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X(X(X(F(p0)))))'
Support contains 2 out of 323 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 323/323 places, 524/524 transitions.
Discarding 3 places :
Symmetric choice reduction at 0 with 3 rule applications. Total rules 3 place count 320 transition count 518
Iterating global reduction 0 with 3 rules applied. Total rules applied 6 place count 320 transition count 518
Applied a total of 6 rules in 10 ms. Remains 320 /323 variables (removed 3) and now considering 518/524 (removed 6) transitions.
[2024-05-28 00:41:10] [INFO ] Flow matrix only has 490 transitions (discarded 28 similar events)
[2024-05-28 00:41:10] [INFO ] Invariant cache hit.
[2024-05-28 00:41:10] [INFO ] Implicit Places using invariants in 139 ms returned []
[2024-05-28 00:41:10] [INFO ] Flow matrix only has 490 transitions (discarded 28 similar events)
[2024-05-28 00:41:10] [INFO ] Invariant cache hit.
[2024-05-28 00:41:10] [INFO ] State equation strengthened by 284 read => feed constraints.
[2024-05-28 00:41:10] [INFO ] Implicit Places using invariants and state equation in 489 ms returned []
Implicit Place search using SMT with State Equation took 638 ms to find 0 implicit places.
[2024-05-28 00:41:10] [INFO ] Flow matrix only has 490 transitions (discarded 28 similar events)
[2024-05-28 00:41:10] [INFO ] Invariant cache hit.
[2024-05-28 00:41:10] [INFO ] Dead Transitions using invariants and state equation in 188 ms found 0 transitions.
Starting structural reductions in LTL mode, iteration 1 : 320/323 places, 518/524 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 836 ms. Remains : 320/323 places, 518/524 transitions.
Stuttering acceptance computed with spot in 129 ms :[(NOT p0), (NOT p0), (NOT p0), (NOT p0)]
Running random walk in product with property : Raft-PT-08-LTLFireability-03 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: 3}], [{ cond=true, acceptance={} source=3 dest: 1}]], initial=2, aps=[p0:(OR (NEQ s196 1) (NEQ s300 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, null][false, false, false, false]]
Stuttering criterion allowed to conclude after 579 steps with 144 reset in 13 ms.
FORMULA Raft-PT-08-LTLFireability-03 FALSE TECHNIQUES STUTTER_TEST
Treatment of property Raft-PT-08-LTLFireability-03 finished in 996 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202304061127/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X(F(p0)))'
Support contains 4 out of 323 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 323/323 places, 524/524 transitions.
Discarding 3 places :
Symmetric choice reduction at 0 with 3 rule applications. Total rules 3 place count 320 transition count 518
Iterating global reduction 0 with 3 rules applied. Total rules applied 6 place count 320 transition count 518
Applied a total of 6 rules in 8 ms. Remains 320 /323 variables (removed 3) and now considering 518/524 (removed 6) transitions.
[2024-05-28 00:41:11] [INFO ] Flow matrix only has 490 transitions (discarded 28 similar events)
[2024-05-28 00:41:11] [INFO ] Invariant cache hit.
[2024-05-28 00:41:11] [INFO ] Implicit Places using invariants in 135 ms returned []
[2024-05-28 00:41:11] [INFO ] Flow matrix only has 490 transitions (discarded 28 similar events)
[2024-05-28 00:41:11] [INFO ] Invariant cache hit.
[2024-05-28 00:41:11] [INFO ] State equation strengthened by 284 read => feed constraints.
[2024-05-28 00:41:11] [INFO ] Implicit Places using invariants and state equation in 490 ms returned []
Implicit Place search using SMT with State Equation took 627 ms to find 0 implicit places.
[2024-05-28 00:41:11] [INFO ] Flow matrix only has 490 transitions (discarded 28 similar events)
[2024-05-28 00:41:11] [INFO ] Invariant cache hit.
[2024-05-28 00:41:11] [INFO ] Dead Transitions using invariants and state equation in 193 ms found 0 transitions.
Starting structural reductions in LTL mode, iteration 1 : 320/323 places, 518/524 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 829 ms. Remains : 320/323 places, 518/524 transitions.
Stuttering acceptance computed with spot in 65 ms :[(NOT p0), (NOT p0)]
Running random walk in product with property : Raft-PT-08-LTLFireability-04 automaton TGBA Formula[mat=[[{ cond=true, acceptance={} source=0 dest: 1}], [{ cond=(NOT p0), acceptance={0} source=1 dest: 1}]], initial=0, aps=[p0:(OR (EQ s110 0) (EQ s296 0) (EQ s245 0) (EQ s308 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][false, false]]
Stuttering criterion allowed to conclude after 1 steps with 0 reset in 0 ms.
FORMULA Raft-PT-08-LTLFireability-04 FALSE TECHNIQUES STUTTER_TEST
Treatment of property Raft-PT-08-LTLFireability-04 finished in 907 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202304061127/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(((X(X(p0)) U p1)||G(X(p2))))'
Support contains 6 out of 323 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 323/323 places, 524/524 transitions.
Discarding 3 places :
Symmetric choice reduction at 0 with 3 rule applications. Total rules 3 place count 320 transition count 518
Iterating global reduction 0 with 3 rules applied. Total rules applied 6 place count 320 transition count 518
Applied a total of 6 rules in 15 ms. Remains 320 /323 variables (removed 3) and now considering 518/524 (removed 6) transitions.
[2024-05-28 00:41:11] [INFO ] Flow matrix only has 490 transitions (discarded 28 similar events)
[2024-05-28 00:41:11] [INFO ] Invariant cache hit.
[2024-05-28 00:41:12] [INFO ] Implicit Places using invariants in 135 ms returned []
[2024-05-28 00:41:12] [INFO ] Flow matrix only has 490 transitions (discarded 28 similar events)
[2024-05-28 00:41:12] [INFO ] Invariant cache hit.
[2024-05-28 00:41:12] [INFO ] State equation strengthened by 284 read => feed constraints.
[2024-05-28 00:41:12] [INFO ] Implicit Places using invariants and state equation in 495 ms returned []
Implicit Place search using SMT with State Equation took 632 ms to find 0 implicit places.
[2024-05-28 00:41:12] [INFO ] Flow matrix only has 490 transitions (discarded 28 similar events)
[2024-05-28 00:41:12] [INFO ] Invariant cache hit.
[2024-05-28 00:41:12] [INFO ] Dead Transitions using invariants and state equation in 183 ms found 0 transitions.
Starting structural reductions in LTL mode, iteration 1 : 320/323 places, 518/524 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 838 ms. Remains : 320/323 places, 518/524 transitions.
Stuttering acceptance computed with spot in 261 ms :[(AND (NOT p1) (NOT p2)), (OR (AND (NOT p0) (NOT p2)) (AND (NOT p1) (NOT p2))), (NOT p0), (OR (NOT p1) (NOT p0)), (AND (NOT p2) (NOT p0)), true, (NOT p2)]
Running random walk in product with property : Raft-PT-08-LTLFireability-05 automaton TGBA Formula[mat=[[{ cond=(NOT p1), acceptance={} source=0 dest: 1}], [{ cond=(AND (NOT p1) p2), acceptance={} source=1 dest: 1}, { cond=(NOT p2), acceptance={} source=1 dest: 2}, { cond=(AND (NOT p1) (NOT p2)), acceptance={} source=1 dest: 3}, { cond=p2, acceptance={} source=1 dest: 4}], [{ cond=(NOT p0), acceptance={} source=2 dest: 5}], [{ cond=true, acceptance={0} source=3 dest: 2}, { cond=(NOT p1), acceptance={0} source=3 dest: 3}], [{ cond=(AND (NOT p2) (NOT p0)), acceptance={} source=4 dest: 5}, { cond=(AND p2 (NOT p0)), acceptance={} source=4 dest: 6}], [{ cond=true, acceptance={0} source=5 dest: 5}], [{ cond=(NOT p2), acceptance={} source=6 dest: 5}, { cond=p2, acceptance={} source=6 dest: 6}]], initial=0, aps=[p1:(AND (EQ s64 1) (EQ s308 1)), p2:(AND (EQ s275 1) (EQ s312 1)), p0:(AND (EQ s60 1) (EQ s288 1))], 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]]
Entered a terminal (fully accepting) state of product in 8 steps with 0 reset in 0 ms.
FORMULA Raft-PT-08-LTLFireability-05 FALSE TECHNIQUES STUTTER_TEST
Treatment of property Raft-PT-08-LTLFireability-05 finished in 1128 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202304061127/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X(X(F((G(!p0)||(!p0&&F((!p1&&G(!p2)))))))))'
Support contains 6 out of 323 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 323/323 places, 524/524 transitions.
Discarding 3 places :
Symmetric choice reduction at 0 with 3 rule applications. Total rules 3 place count 320 transition count 518
Iterating global reduction 0 with 3 rules applied. Total rules applied 6 place count 320 transition count 518
Applied a total of 6 rules in 8 ms. Remains 320 /323 variables (removed 3) and now considering 518/524 (removed 6) transitions.
[2024-05-28 00:41:13] [INFO ] Flow matrix only has 490 transitions (discarded 28 similar events)
[2024-05-28 00:41:13] [INFO ] Invariant cache hit.
[2024-05-28 00:41:13] [INFO ] Implicit Places using invariants in 131 ms returned []
[2024-05-28 00:41:13] [INFO ] Flow matrix only has 490 transitions (discarded 28 similar events)
[2024-05-28 00:41:13] [INFO ] Invariant cache hit.
[2024-05-28 00:41:13] [INFO ] State equation strengthened by 284 read => feed constraints.
[2024-05-28 00:41:13] [INFO ] Implicit Places using invariants and state equation in 482 ms returned []
Implicit Place search using SMT with State Equation took 631 ms to find 0 implicit places.
[2024-05-28 00:41:13] [INFO ] Flow matrix only has 490 transitions (discarded 28 similar events)
[2024-05-28 00:41:13] [INFO ] Invariant cache hit.
[2024-05-28 00:41:13] [INFO ] Dead Transitions using invariants and state equation in 183 ms found 0 transitions.
Starting structural reductions in LTL mode, iteration 1 : 320/323 places, 518/524 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 824 ms. Remains : 320/323 places, 518/524 transitions.
Stuttering acceptance computed with spot in 200 ms :[p0, (AND p0 p2), (OR (AND p0 p2) (AND p0 p1)), p0, p0]
Running random walk in product with property : Raft-PT-08-LTLFireability-06 automaton TGBA Formula[mat=[[{ cond=p0, acceptance={0, 1} source=0 dest: 0}, { cond=(AND (NOT p0) (NOT p1) (NOT p2)), acceptance={} source=0 dest: 1}, { cond=(OR (AND (NOT p0) p1) (AND (NOT p0) p2)), acceptance={} source=0 dest: 2}], [{ cond=(AND (NOT p0) (NOT p2)), acceptance={} source=1 dest: 1}, { cond=(AND p0 (NOT p2)), acceptance={1} source=1 dest: 1}, { cond=(AND (NOT p0) p2), acceptance={0} source=1 dest: 2}, { cond=(AND p0 p2), acceptance={0, 1} source=1 dest: 2}], [{ cond=(AND (NOT p0) (NOT p1) (NOT p2)), acceptance={} source=2 dest: 1}, { cond=(AND p0 (NOT p1) (NOT p2)), acceptance={1} source=2 dest: 1}, { cond=(OR (AND (NOT p0) p1) (AND (NOT p0) p2)), acceptance={0} source=2 dest: 2}, { cond=(OR (AND p0 p1) (AND p0 p2)), acceptance={0, 1} source=2 dest: 2}], [{ cond=true, acceptance={} source=3 dest: 0}], [{ cond=true, acceptance={} source=4 dest: 3}]], initial=4, aps=[p0:(AND (EQ s272 1) (EQ s304 1)), p1:(AND (EQ s280 1) (EQ s312 1)), p2:(AND (EQ s225 1) (EQ s308 1))], nbAcceptance=2, properties=[trans-labels, explicit-labels, trans-acc, complete, deterministic, no-univ-branch, unambiguous, semi-deterministic, stutter-sensitive], stateDesc=[null, null, null, null, null][false, false, false, false, false]]
Stuttering criterion allowed to conclude after 576 steps with 0 reset in 12 ms.
FORMULA Raft-PT-08-LTLFireability-06 FALSE TECHNIQUES STUTTER_TEST
Treatment of property Raft-PT-08-LTLFireability-06 finished in 1057 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202304061127/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X((G(p0) U X(p1))))'
Support contains 4 out of 323 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 323/323 places, 524/524 transitions.
Discarding 2 places :
Symmetric choice reduction at 0 with 2 rule applications. Total rules 2 place count 321 transition count 520
Iterating global reduction 0 with 2 rules applied. Total rules applied 4 place count 321 transition count 520
Applied a total of 4 rules in 14 ms. Remains 321 /323 variables (removed 2) and now considering 520/524 (removed 4) transitions.
[2024-05-28 00:41:14] [INFO ] Flow matrix only has 491 transitions (discarded 29 similar events)
// Phase 1: matrix 491 rows 321 cols
[2024-05-28 00:41:14] [INFO ] Computed 64 invariants in 2 ms
[2024-05-28 00:41:14] [INFO ] Implicit Places using invariants in 124 ms returned []
[2024-05-28 00:41:14] [INFO ] Flow matrix only has 491 transitions (discarded 29 similar events)
[2024-05-28 00:41:14] [INFO ] Invariant cache hit.
[2024-05-28 00:41:14] [INFO ] State equation strengthened by 284 read => feed constraints.
[2024-05-28 00:41:14] [INFO ] Implicit Places using invariants and state equation in 490 ms returned []
Implicit Place search using SMT with State Equation took 620 ms to find 0 implicit places.
[2024-05-28 00:41:14] [INFO ] Flow matrix only has 491 transitions (discarded 29 similar events)
[2024-05-28 00:41:14] [INFO ] Invariant cache hit.
[2024-05-28 00:41:14] [INFO ] Dead Transitions using invariants and state equation in 178 ms found 0 transitions.
Starting structural reductions in LTL mode, iteration 1 : 321/323 places, 520/524 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 813 ms. Remains : 321/323 places, 520/524 transitions.
Stuttering acceptance computed with spot in 186 ms :[(NOT p1), (NOT p1), (NOT p1), (NOT p1), true, (NOT p0)]
Running random walk in product with property : Raft-PT-08-LTLFireability-07 automaton TGBA Formula[mat=[[{ cond=true, acceptance={} source=0 dest: 1}], [{ cond=(NOT p0), acceptance={} source=1 dest: 2}, { cond=p0, acceptance={} source=1 dest: 3}], [{ cond=(NOT p1), acceptance={} source=2 dest: 4}], [{ cond=(AND p0 (NOT p1)), acceptance={0} source=3 dest: 3}, { cond=(AND (NOT p0) (NOT p1)), acceptance={0} source=3 dest: 4}, { cond=(AND p0 (NOT p1)), acceptance={0} source=3 dest: 5}], [{ cond=true, acceptance={0} source=4 dest: 4}], [{ cond=(NOT p0), acceptance={} source=5 dest: 4}, { cond=p0, acceptance={} source=5 dest: 5}]], initial=0, aps=[p0:(AND (EQ s299 1) (EQ s320 1)), p1:(AND (EQ s200 1) (EQ s305 1))], 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][false, false, false, false, false, false]]
Entered a terminal (fully accepting) state of product in 488 steps with 162 reset in 22 ms.
FORMULA Raft-PT-08-LTLFireability-07 FALSE TECHNIQUES STUTTER_TEST
Treatment of property Raft-PT-08-LTLFireability-07 finished in 1044 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202304061127/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(F((p0||(p0 U G((p1||F(p2)))))))'
Support contains 5 out of 323 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 323/323 places, 524/524 transitions.
Discarding 3 places :
Symmetric choice reduction at 0 with 3 rule applications. Total rules 3 place count 320 transition count 518
Iterating global reduction 0 with 3 rules applied. Total rules applied 6 place count 320 transition count 518
Performed 6 Post agglomeration using F-continuation condition.Transition count delta: 6
Deduced a syphon composed of 6 places in 0 ms
Reduce places removed 6 places and 0 transitions.
Iterating global reduction 0 with 12 rules applied. Total rules applied 18 place count 314 transition count 512
Discarding 42 places :
Symmetric choice reduction at 0 with 42 rule applications. Total rules 60 place count 272 transition count 470
Iterating global reduction 0 with 42 rules applied. Total rules applied 102 place count 272 transition count 470
Ensure Unique test removed 42 transitions
Reduce isomorphic transitions removed 42 transitions.
Iterating post reduction 0 with 42 rules applied. Total rules applied 144 place count 272 transition count 428
Performed 7 Post agglomeration using F-continuation condition.Transition count delta: -36
Deduced a syphon composed of 7 places in 0 ms
Reduce places removed 7 places and 0 transitions.
Iterating global reduction 1 with 14 rules applied. Total rules applied 158 place count 265 transition count 464
Drop transitions removed 44 transitions
Redundant transition composition rules discarded 44 transitions
Iterating global reduction 1 with 44 rules applied. Total rules applied 202 place count 265 transition count 420
Discarding 42 places :
Symmetric choice reduction at 1 with 42 rule applications. Total rules 244 place count 223 transition count 378
Iterating global reduction 1 with 42 rules applied. Total rules applied 286 place count 223 transition count 378
Ensure Unique test removed 42 transitions
Reduce isomorphic transitions removed 42 transitions.
Iterating post reduction 1 with 42 rules applied. Total rules applied 328 place count 223 transition count 336
Performed 2 Post agglomeration using F-continuation condition.Transition count delta: 2
Deduced a syphon composed of 2 places in 0 ms
Reduce places removed 2 places and 0 transitions.
Iterating global reduction 2 with 4 rules applied. Total rules applied 332 place count 221 transition count 334
Discarding 13 places :
Symmetric choice reduction at 2 with 13 rule applications. Total rules 345 place count 208 transition count 321
Iterating global reduction 2 with 13 rules applied. Total rules applied 358 place count 208 transition count 321
Ensure Unique test removed 13 transitions
Reduce isomorphic transitions removed 13 transitions.
Iterating post reduction 2 with 13 rules applied. Total rules applied 371 place count 208 transition count 308
Applied a total of 371 rules in 76 ms. Remains 208 /323 variables (removed 115) and now considering 308/524 (removed 216) transitions.
[2024-05-28 00:41:15] [INFO ] Flow matrix only has 273 transitions (discarded 35 similar events)
// Phase 1: matrix 273 rows 208 cols
[2024-05-28 00:41:15] [INFO ] Computed 64 invariants in 1 ms
[2024-05-28 00:41:15] [INFO ] Implicit Places using invariants in 90 ms returned []
[2024-05-28 00:41:15] [INFO ] Flow matrix only has 273 transitions (discarded 35 similar events)
[2024-05-28 00:41:15] [INFO ] Invariant cache hit.
[2024-05-28 00:41:15] [INFO ] State equation strengthened by 188 read => feed constraints.
[2024-05-28 00:41:15] [INFO ] Implicit Places using invariants and state equation in 285 ms returned []
Implicit Place search using SMT with State Equation took 376 ms to find 0 implicit places.
[2024-05-28 00:41:15] [INFO ] Redundant transitions in 17 ms returned []
[2024-05-28 00:41:15] [INFO ] Flow matrix only has 273 transitions (discarded 35 similar events)
[2024-05-28 00:41:15] [INFO ] Invariant cache hit.
[2024-05-28 00:41:15] [INFO ] Dead Transitions using invariants and state equation in 118 ms found 0 transitions.
Starting structural reductions in SI_LTL mode, iteration 1 : 208/323 places, 308/524 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 597 ms. Remains : 208/323 places, 308/524 transitions.
Stuttering acceptance computed with spot in 70 ms :[(AND (NOT p0) (NOT p1) (NOT p2)), (AND (NOT p0) (NOT p1) (NOT p2))]
Running random walk in product with property : Raft-PT-08-LTLFireability-09 automaton TGBA Formula[mat=[[{ cond=(NOT p0), acceptance={} source=0 dest: 0}, { cond=(AND (NOT p0) (NOT p1) (NOT p2)), acceptance={} source=0 dest: 1}], [{ cond=(AND (NOT p0) p1 (NOT p2)), acceptance={} source=1 dest: 1}, { cond=(AND (NOT p0) (NOT p1) (NOT p2)), acceptance={0} source=1 dest: 1}]], initial=0, aps=[p0:(AND (EQ s51 1) (EQ s188 1)), p1:(AND (EQ s72 1) (EQ s188 1)), p2:(AND (EQ s88 1) (EQ s193 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 13 steps with 0 reset in 1 ms.
FORMULA Raft-PT-08-LTLFireability-09 FALSE TECHNIQUES STUTTER_TEST
Treatment of property Raft-PT-08-LTLFireability-09 finished in 685 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202304061127/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X((X(p0)&&(X(F(!p1))||G(!p2)))))'
Support contains 6 out of 323 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 323/323 places, 524/524 transitions.
Discarding 2 places :
Symmetric choice reduction at 0 with 2 rule applications. Total rules 2 place count 321 transition count 520
Iterating global reduction 0 with 2 rules applied. Total rules applied 4 place count 321 transition count 520
Applied a total of 4 rules in 12 ms. Remains 321 /323 variables (removed 2) and now considering 520/524 (removed 4) transitions.
[2024-05-28 00:41:15] [INFO ] Flow matrix only has 491 transitions (discarded 29 similar events)
// Phase 1: matrix 491 rows 321 cols
[2024-05-28 00:41:15] [INFO ] Computed 64 invariants in 4 ms
[2024-05-28 00:41:16] [INFO ] Implicit Places using invariants in 131 ms returned []
[2024-05-28 00:41:16] [INFO ] Flow matrix only has 491 transitions (discarded 29 similar events)
[2024-05-28 00:41:16] [INFO ] Invariant cache hit.
[2024-05-28 00:41:16] [INFO ] State equation strengthened by 284 read => feed constraints.
[2024-05-28 00:41:16] [INFO ] Implicit Places using invariants and state equation in 487 ms returned []
Implicit Place search using SMT with State Equation took 619 ms to find 0 implicit places.
[2024-05-28 00:41:16] [INFO ] Flow matrix only has 491 transitions (discarded 29 similar events)
[2024-05-28 00:41:16] [INFO ] Invariant cache hit.
[2024-05-28 00:41:16] [INFO ] Dead Transitions using invariants and state equation in 174 ms found 0 transitions.
Starting structural reductions in LTL mode, iteration 1 : 321/323 places, 520/524 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 807 ms. Remains : 321/323 places, 520/524 transitions.
Stuttering acceptance computed with spot in 202 ms :[(OR (NOT p0) (AND p1 p2)), (OR (NOT p0) (AND p1 p2)), (NOT p0), p1, (AND p1 p2), true]
Running random walk in product with property : Raft-PT-08-LTLFireability-10 automaton TGBA Formula[mat=[[{ cond=true, acceptance={} source=0 dest: 1}], [{ cond=true, acceptance={} source=1 dest: 2}, { cond=p2, acceptance={} source=1 dest: 3}, { cond=(NOT p2), acceptance={} source=1 dest: 4}], [{ cond=(NOT p0), acceptance={} source=2 dest: 5}], [{ cond=p1, acceptance={0} source=3 dest: 3}], [{ cond=(AND p2 p1), acceptance={} source=4 dest: 3}, { cond=(AND (NOT p2) p1), acceptance={} source=4 dest: 4}], [{ cond=true, acceptance={0} source=5 dest: 5}]], initial=0, aps=[p2:(AND (EQ s297 1) (EQ s320 1)), p0:(OR (EQ s239 0) (EQ s305 0)), p1:(AND (EQ s215 1) (EQ s309 1))], 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][false, false, false, false, false, false]]
Stuttering criterion allowed to conclude after 523 steps with 36 reset in 8 ms.
FORMULA Raft-PT-08-LTLFireability-10 FALSE TECHNIQUES STUTTER_TEST
Treatment of property Raft-PT-08-LTLFireability-10 finished in 1038 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202304061127/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(F(G(p0)))'
Support contains 2 out of 323 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 323/323 places, 524/524 transitions.
Discarding 3 places :
Symmetric choice reduction at 0 with 3 rule applications. Total rules 3 place count 320 transition count 518
Iterating global reduction 0 with 3 rules applied. Total rules applied 6 place count 320 transition count 518
Performed 7 Post agglomeration using F-continuation condition.Transition count delta: 7
Deduced a syphon composed of 7 places in 0 ms
Reduce places removed 7 places and 0 transitions.
Iterating global reduction 0 with 14 rules applied. Total rules applied 20 place count 313 transition count 511
Discarding 49 places :
Symmetric choice reduction at 0 with 49 rule applications. Total rules 69 place count 264 transition count 462
Iterating global reduction 0 with 49 rules applied. Total rules applied 118 place count 264 transition count 462
Ensure Unique test removed 49 transitions
Reduce isomorphic transitions removed 49 transitions.
Iterating post reduction 0 with 49 rules applied. Total rules applied 167 place count 264 transition count 413
Performed 8 Post agglomeration using F-continuation condition.Transition count delta: -41
Deduced a syphon composed of 8 places in 0 ms
Reduce places removed 8 places and 0 transitions.
Iterating global reduction 1 with 16 rules applied. Total rules applied 183 place count 256 transition count 454
Drop transitions removed 50 transitions
Redundant transition composition rules discarded 50 transitions
Iterating global reduction 1 with 50 rules applied. Total rules applied 233 place count 256 transition count 404
Discarding 49 places :
Symmetric choice reduction at 1 with 49 rule applications. Total rules 282 place count 207 transition count 355
Iterating global reduction 1 with 49 rules applied. Total rules applied 331 place count 207 transition count 355
Ensure Unique test removed 49 transitions
Reduce isomorphic transitions removed 49 transitions.
Iterating post reduction 1 with 49 rules applied. Total rules applied 380 place count 207 transition count 306
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 2 with 2 rules applied. Total rules applied 382 place count 206 transition count 305
Discarding 6 places :
Symmetric choice reduction at 2 with 6 rule applications. Total rules 388 place count 200 transition count 299
Iterating global reduction 2 with 6 rules applied. Total rules applied 394 place count 200 transition count 299
Ensure Unique test removed 6 transitions
Reduce isomorphic transitions removed 6 transitions.
Iterating post reduction 2 with 6 rules applied. Total rules applied 400 place count 200 transition count 293
Applied a total of 400 rules in 55 ms. Remains 200 /323 variables (removed 123) and now considering 293/524 (removed 231) transitions.
[2024-05-28 00:41:16] [INFO ] Flow matrix only has 258 transitions (discarded 35 similar events)
// Phase 1: matrix 258 rows 200 cols
[2024-05-28 00:41:16] [INFO ] Computed 64 invariants in 1 ms
[2024-05-28 00:41:17] [INFO ] Implicit Places using invariants in 92 ms returned []
[2024-05-28 00:41:17] [INFO ] Flow matrix only has 258 transitions (discarded 35 similar events)
[2024-05-28 00:41:17] [INFO ] Invariant cache hit.
[2024-05-28 00:41:17] [INFO ] State equation strengthened by 181 read => feed constraints.
[2024-05-28 00:41:17] [INFO ] Implicit Places using invariants and state equation in 275 ms returned []
Implicit Place search using SMT with State Equation took 395 ms to find 0 implicit places.
[2024-05-28 00:41:17] [INFO ] Redundant transitions in 3 ms returned []
[2024-05-28 00:41:17] [INFO ] Flow matrix only has 258 transitions (discarded 35 similar events)
[2024-05-28 00:41:17] [INFO ] Invariant cache hit.
[2024-05-28 00:41:17] [INFO ] Dead Transitions using invariants and state equation in 109 ms found 0 transitions.
Starting structural reductions in SI_LTL mode, iteration 1 : 200/323 places, 293/524 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 574 ms. Remains : 200/323 places, 293/524 transitions.
Stuttering acceptance computed with spot in 31 ms :[(NOT p0)]
Running random walk in product with property : Raft-PT-08-LTLFireability-11 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 s145 0) (EQ s187 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 14 steps with 0 reset in 0 ms.
FORMULA Raft-PT-08-LTLFireability-11 FALSE TECHNIQUES STUTTER_TEST
Treatment of property Raft-PT-08-LTLFireability-11 finished in 623 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202304061127/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!((G(F(p0))||G(p1)))'
Support contains 4 out of 323 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 323/323 places, 524/524 transitions.
Discarding 3 places :
Symmetric choice reduction at 0 with 3 rule applications. Total rules 3 place count 320 transition count 518
Iterating global reduction 0 with 3 rules applied. Total rules applied 6 place count 320 transition count 518
Performed 7 Post agglomeration using F-continuation condition.Transition count delta: 7
Deduced a syphon composed of 7 places in 1 ms
Reduce places removed 7 places and 0 transitions.
Iterating global reduction 0 with 14 rules applied. Total rules applied 20 place count 313 transition count 511
Discarding 49 places :
Symmetric choice reduction at 0 with 49 rule applications. Total rules 69 place count 264 transition count 462
Iterating global reduction 0 with 49 rules applied. Total rules applied 118 place count 264 transition count 462
Ensure Unique test removed 49 transitions
Reduce isomorphic transitions removed 49 transitions.
Iterating post reduction 0 with 49 rules applied. Total rules applied 167 place count 264 transition count 413
Performed 7 Post agglomeration using F-continuation condition.Transition count delta: -35
Deduced a syphon composed of 7 places in 0 ms
Reduce places removed 7 places and 0 transitions.
Iterating global reduction 1 with 14 rules applied. Total rules applied 181 place count 257 transition count 448
Drop transitions removed 50 transitions
Redundant transition composition rules discarded 50 transitions
Iterating global reduction 1 with 50 rules applied. Total rules applied 231 place count 257 transition count 398
Discarding 49 places :
Symmetric choice reduction at 1 with 49 rule applications. Total rules 280 place count 208 transition count 349
Iterating global reduction 1 with 49 rules applied. Total rules applied 329 place count 208 transition count 349
Ensure Unique test removed 49 transitions
Reduce isomorphic transitions removed 49 transitions.
Iterating post reduction 1 with 49 rules applied. Total rules applied 378 place count 208 transition count 300
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 2 with 2 rules applied. Total rules applied 380 place count 207 transition count 299
Discarding 7 places :
Symmetric choice reduction at 2 with 7 rule applications. Total rules 387 place count 200 transition count 292
Iterating global reduction 2 with 7 rules applied. Total rules applied 394 place count 200 transition count 292
Ensure Unique test removed 7 transitions
Reduce isomorphic transitions removed 7 transitions.
Iterating post reduction 2 with 7 rules applied. Total rules applied 401 place count 200 transition count 285
Applied a total of 401 rules in 49 ms. Remains 200 /323 variables (removed 123) and now considering 285/524 (removed 239) transitions.
[2024-05-28 00:41:17] [INFO ] Flow matrix only has 257 transitions (discarded 28 similar events)
// Phase 1: matrix 257 rows 200 cols
[2024-05-28 00:41:17] [INFO ] Computed 64 invariants in 1 ms
[2024-05-28 00:41:17] [INFO ] Implicit Places using invariants in 105 ms returned []
[2024-05-28 00:41:17] [INFO ] Flow matrix only has 257 transitions (discarded 28 similar events)
[2024-05-28 00:41:17] [INFO ] Invariant cache hit.
[2024-05-28 00:41:17] [INFO ] State equation strengthened by 179 read => feed constraints.
[2024-05-28 00:41:17] [INFO ] Implicit Places using invariants and state equation in 285 ms returned []
Implicit Place search using SMT with State Equation took 391 ms to find 0 implicit places.
[2024-05-28 00:41:17] [INFO ] Redundant transitions in 15 ms returned []
[2024-05-28 00:41:17] [INFO ] Flow matrix only has 257 transitions (discarded 28 similar events)
[2024-05-28 00:41:17] [INFO ] Invariant cache hit.
[2024-05-28 00:41:18] [INFO ] Dead Transitions using invariants and state equation in 107 ms found 0 transitions.
Starting structural reductions in SI_LTL mode, iteration 1 : 200/323 places, 285/524 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 568 ms. Remains : 200/323 places, 285/524 transitions.
Stuttering acceptance computed with spot in 105 ms :[(AND (NOT p1) (NOT p0)), (NOT p0), (NOT p0)]
Running random walk in product with property : Raft-PT-08-LTLFireability-12 automaton TGBA Formula[mat=[[{ cond=p1, acceptance={} source=0 dest: 0}, { cond=(AND (NOT p0) (NOT p1)), acceptance={} source=0 dest: 1}, { cond=(NOT p1), acceptance={} source=0 dest: 2}], [{ cond=(NOT p0), acceptance={0} source=1 dest: 1}], [{ cond=(NOT p0), acceptance={} source=2 dest: 1}, { cond=true, acceptance={} source=2 dest: 2}]], initial=0, aps=[p1:(AND (EQ s196 1) (EQ s197 1)), p0:(OR (EQ s109 0) (EQ s186 0))], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, no-univ-branch, stutter-invariant, very-weak, weak, inherently-weak], stateDesc=[null, null, null][true, true, true]]
Stuttering criterion allowed to conclude after 1 steps with 0 reset in 1 ms.
FORMULA Raft-PT-08-LTLFireability-12 FALSE TECHNIQUES STUTTER_TEST
Treatment of property Raft-PT-08-LTLFireability-12 finished in 689 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202304061127/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X(G((p0&&F(p1)))))'
Support contains 3 out of 323 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 323/323 places, 524/524 transitions.
Discarding 3 places :
Symmetric choice reduction at 0 with 3 rule applications. Total rules 3 place count 320 transition count 518
Iterating global reduction 0 with 3 rules applied. Total rules applied 6 place count 320 transition count 518
Applied a total of 6 rules in 15 ms. Remains 320 /323 variables (removed 3) and now considering 518/524 (removed 6) transitions.
[2024-05-28 00:41:18] [INFO ] Flow matrix only has 490 transitions (discarded 28 similar events)
// Phase 1: matrix 490 rows 320 cols
[2024-05-28 00:41:18] [INFO ] Computed 64 invariants in 4 ms
[2024-05-28 00:41:18] [INFO ] Implicit Places using invariants in 139 ms returned []
[2024-05-28 00:41:18] [INFO ] Flow matrix only has 490 transitions (discarded 28 similar events)
[2024-05-28 00:41:18] [INFO ] Invariant cache hit.
[2024-05-28 00:41:18] [INFO ] State equation strengthened by 284 read => feed constraints.
[2024-05-28 00:41:18] [INFO ] Implicit Places using invariants and state equation in 479 ms returned []
Implicit Place search using SMT with State Equation took 630 ms to find 0 implicit places.
[2024-05-28 00:41:18] [INFO ] Flow matrix only has 490 transitions (discarded 28 similar events)
[2024-05-28 00:41:18] [INFO ] Invariant cache hit.
[2024-05-28 00:41:19] [INFO ] Dead Transitions using invariants and state equation in 171 ms found 0 transitions.
Starting structural reductions in LTL mode, iteration 1 : 320/323 places, 518/524 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 816 ms. Remains : 320/323 places, 518/524 transitions.
Stuttering acceptance computed with spot in 226 ms :[(OR (NOT p0) (NOT p1)), (OR (NOT p0) (NOT p1)), true, (NOT p1)]
Running random walk in product with property : Raft-PT-08-LTLFireability-13 automaton TGBA Formula[mat=[[{ cond=true, acceptance={} source=0 dest: 1}], [{ cond=p0, acceptance={} source=1 dest: 1}, { cond=(NOT p0), acceptance={} source=1 dest: 2}, { cond=(AND p0 (NOT p1)), acceptance={} source=1 dest: 3}], [{ cond=true, acceptance={0} source=2 dest: 2}], [{ cond=(NOT p1), acceptance={0} source=3 dest: 3}]], initial=0, aps=[p0:(EQ s292 1), p1:(AND (EQ s125 1) (EQ s296 1))], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, no-univ-branch, stutter-sensitive, very-weak, weak, inherently-weak], stateDesc=[null, null, null, null][false, false, false, false]]
Stuttering criterion allowed to conclude after 14 steps with 0 reset in 1 ms.
FORMULA Raft-PT-08-LTLFireability-13 FALSE TECHNIQUES STUTTER_TEST
Treatment of property Raft-PT-08-LTLFireability-13 finished in 1060 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202304061127/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X(G(p0)))'
Support contains 5 out of 323 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 323/323 places, 524/524 transitions.
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 1 place count 322 transition count 522
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 322 transition count 522
Applied a total of 2 rules in 6 ms. Remains 322 /323 variables (removed 1) and now considering 522/524 (removed 2) transitions.
[2024-05-28 00:41:19] [INFO ] Flow matrix only has 492 transitions (discarded 30 similar events)
// Phase 1: matrix 492 rows 322 cols
[2024-05-28 00:41:19] [INFO ] Computed 64 invariants in 3 ms
[2024-05-28 00:41:19] [INFO ] Implicit Places using invariants in 132 ms returned []
[2024-05-28 00:41:19] [INFO ] Flow matrix only has 492 transitions (discarded 30 similar events)
[2024-05-28 00:41:19] [INFO ] Invariant cache hit.
[2024-05-28 00:41:19] [INFO ] State equation strengthened by 284 read => feed constraints.
[2024-05-28 00:41:19] [INFO ] Implicit Places using invariants and state equation in 487 ms returned []
Implicit Place search using SMT with State Equation took 622 ms to find 0 implicit places.
[2024-05-28 00:41:19] [INFO ] Flow matrix only has 492 transitions (discarded 30 similar events)
[2024-05-28 00:41:19] [INFO ] Invariant cache hit.
[2024-05-28 00:41:20] [INFO ] Dead Transitions using invariants and state equation in 179 ms found 0 transitions.
Starting structural reductions in LTL mode, iteration 1 : 322/323 places, 522/524 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 809 ms. Remains : 322/323 places, 522/524 transitions.
Stuttering acceptance computed with spot in 83 ms :[true, (NOT p0), (NOT p0)]
Running random walk in product with property : Raft-PT-08-LTLFireability-14 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 s105 1) (EQ s292 1) (OR (EQ s312 0) (EQ s321 0) (EQ s295 0)))], 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 17 steps with 0 reset in 1 ms.
FORMULA Raft-PT-08-LTLFireability-14 FALSE TECHNIQUES STUTTER_TEST
Treatment of property Raft-PT-08-LTLFireability-14 finished in 904 ms.
All properties solved by simple procedures.
Total runtime 18901 ms.

BK_STOP 1716856881465

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

+ export BINDIR=/home/mcc/BenchKit/bin//../itstools/bin//../
+ BINDIR=/home/mcc/BenchKit/bin//../itstools/bin//../
++ pwd
+ export MODEL=/home/mcc/execution
+ MODEL=/home/mcc/execution
+ [[ LTLFireability = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution LTLFireability -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600
+ ulimit -s 65536
+ [[ -z '' ]]
+ export LTSMIN_MEM_SIZE=8589934592
+ LTSMIN_MEM_SIZE=8589934592
+ export PYTHONPATH=/home/mcc/BenchKit/itstools/pylibs
+ PYTHONPATH=/home/mcc/BenchKit/itstools/pylibs
+ export LD_LIBRARY_PATH=/home/mcc/BenchKit/itstools/pylibs:
+ LD_LIBRARY_PATH=/home/mcc/BenchKit/itstools/pylibs:
++ sed s/.jar//
++ perl -pe 's/.*\.//g'
++ ls /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202304061127.jar
+ VERSION=202304061127
+ echo 'Running Version 202304061127'
+ /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/its-tools -pnfolder /home/mcc/execution -examination LTLFireability -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600

Sequence of Actions to be Executed by the VM

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

set -x
# this is for BenchKit: configuration of major elements for the test
export BK_INPUT="Raft-PT-08"
export BK_EXAMINATION="LTLFireability"
export BK_TOOL="gold2023"
export BK_RESULT_DIR="/tmp/BK_RESULTS/OUTPUTS"
export BK_TIME_CONFINEMENT="3600"
export BK_MEMORY_CONFINEMENT="16384"
export BK_BIN_PATH="/home/mcc/BenchKit/bin/"

# this is specific to your benchmark or test

export BIN_DIR="$HOME/BenchKit/bin"

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

# this is for BenchKit: explicit launching of the test
echo "====================================================================="
echo " Generated by BenchKit 2-5568"
echo " Executing tool gold2023"
echo " Input is Raft-PT-08, 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 r329-tall-171662361900283"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/Raft-PT-08.tgz
mv Raft-PT-08 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 ;