fond
Model Checking Contest 2023
13th edition, Paris, France, April 26, 2023 (at TOOLympics II)
Execution of r297-tall-167873950800722
Last Updated
May 14, 2023

About the Execution of LTSMin+red for PolyORBNT-PT-S05J30

Execution Summary
Max Memory
Used (MB)
Time wait (ms) CPU Usage (ms) I/O Wait (ms) Computed Result Execution
Status
2035.915 3600000.00 14272916.00 464.50 ??T??????????F?F normal

Execution Chart

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

Trace from the execution

Formatting '/data/fkordon/mcc2023-input.r297-tall-167873950800722.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2023-input.qcow2 cluster_size=65536 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
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=====================================================================
Generated by BenchKit 2-5348
Executing tool ltsminxred
Input is PolyORBNT-PT-S05J30, examination is CTLFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r297-tall-167873950800722
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 2.3M
-rw-r--r-- 1 mcc users 15K Feb 25 23:22 CTLCardinality.txt
-rw-r--r-- 1 mcc users 99K Feb 25 23:22 CTLCardinality.xml
-rw-r--r-- 1 mcc users 62K Feb 25 23:20 CTLFireability.txt
-rw-r--r-- 1 mcc users 274K Feb 25 23:20 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Jan 29 11:40 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.5K Jan 29 11:40 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 18K Feb 25 16:36 LTLCardinality.txt
-rw-r--r-- 1 mcc users 62K Feb 25 16:36 LTLCardinality.xml
-rw-r--r-- 1 mcc users 26K Feb 25 16:36 LTLFireability.txt
-rw-r--r-- 1 mcc users 84K Feb 25 16:36 LTLFireability.xml
-rw-r--r-- 1 mcc users 33K Feb 25 23:30 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 216K Feb 25 23:30 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 30K Feb 25 23:28 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 126K Feb 25 23:28 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 4.5K Feb 25 16:36 UpperBounds.txt
-rw-r--r-- 1 mcc users 9.7K Feb 25 16:36 UpperBounds.xml
-rw-r--r-- 1 mcc users 5 Mar 5 18:23 equiv_col
-rw-r--r-- 1 mcc users 7 Mar 5 18:23 instance
-rw-r--r-- 1 mcc users 6 Mar 5 18:23 iscolored
-rw-r--r-- 1 mcc users 1.2M Mar 5 18:23 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 PolyORBNT-PT-S05J30-CTLFireability-00
FORMULA_NAME PolyORBNT-PT-S05J30-CTLFireability-01
FORMULA_NAME PolyORBNT-PT-S05J30-CTLFireability-02
FORMULA_NAME PolyORBNT-PT-S05J30-CTLFireability-03
FORMULA_NAME PolyORBNT-PT-S05J30-CTLFireability-04
FORMULA_NAME PolyORBNT-PT-S05J30-CTLFireability-05
FORMULA_NAME PolyORBNT-PT-S05J30-CTLFireability-06
FORMULA_NAME PolyORBNT-PT-S05J30-CTLFireability-07
FORMULA_NAME PolyORBNT-PT-S05J30-CTLFireability-08
FORMULA_NAME PolyORBNT-PT-S05J30-CTLFireability-09
FORMULA_NAME PolyORBNT-PT-S05J30-CTLFireability-10
FORMULA_NAME PolyORBNT-PT-S05J30-CTLFireability-11
FORMULA_NAME PolyORBNT-PT-S05J30-CTLFireability-12
FORMULA_NAME PolyORBNT-PT-S05J30-CTLFireability-13
FORMULA_NAME PolyORBNT-PT-S05J30-CTLFireability-14
FORMULA_NAME PolyORBNT-PT-S05J30-CTLFireability-15

=== Now, execution of the tool begins

BK_START 1679623119184

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=ltsminxred
BK_EXAMINATION=CTLFireability
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=PolyORBNT-PT-S05J30
Applying reductions before tool ltsmin
Invoking reducer
Running Version 202303021504
[2023-03-24 01:58:41] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, CTLFireability, -timeout, 360, -rebuildPNML]
[2023-03-24 01:58:41] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2023-03-24 01:58:41] [INFO ] Load time of PNML (sax parser for PT used): 143 ms
[2023-03-24 01:58:41] [INFO ] Transformed 489 places.
[2023-03-24 01:58:41] [INFO ] Transformed 1400 transitions.
[2023-03-24 01:58:41] [INFO ] Parsed PT model containing 489 places and 1400 transitions and 9764 arcs in 234 ms.
Parsed 16 properties from file /home/mcc/execution/CTLFireability.xml in 24 ms.
[2023-03-24 01:58:41] [INFO ] Reduced 90 identical enabling conditions.
[2023-03-24 01:58:41] [INFO ] Reduced 555 identical enabling conditions.
[2023-03-24 01:58:41] [INFO ] Reduced 555 identical enabling conditions.
[2023-03-24 01:58:41] [INFO ] Reduced 555 identical enabling conditions.
Ensure Unique test removed 655 transitions
Reduce redundant transitions removed 655 transitions.
Support contains 402 out of 489 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 489/489 places, 745/745 transitions.
Applied a total of 0 rules in 30 ms. Remains 489 /489 variables (removed 0) and now considering 745/745 (removed 0) transitions.
[2023-03-24 01:58:41] [INFO ] Flow matrix only has 741 transitions (discarded 4 similar events)
// Phase 1: matrix 741 rows 489 cols
[2023-03-24 01:58:41] [INFO ] Computed 82 place invariants in 45 ms
[2023-03-24 01:58:42] [INFO ] Dead Transitions using invariants and state equation in 1214 ms found 95 transitions.
Found 95 dead transitions using SMT.
Drop transitions removed 95 transitions
Dead transitions reduction (with SMT) triggered by suspicious arc values removed 95 transitions.
[2023-03-24 01:58:42] [INFO ] Flow matrix only has 646 transitions (discarded 4 similar events)
// Phase 1: matrix 646 rows 489 cols
[2023-03-24 01:58:42] [INFO ] Computed 82 place invariants in 34 ms
[2023-03-24 01:58:43] [INFO ] Implicit Places using invariants in 283 ms returned []
[2023-03-24 01:58:43] [INFO ] Flow matrix only has 646 transitions (discarded 4 similar events)
[2023-03-24 01:58:43] [INFO ] Invariant cache hit.
[2023-03-24 01:58:43] [INFO ] State equation strengthened by 1 read => feed constraints.
[2023-03-24 01:58:45] [INFO ] Implicit Places using invariants and state equation in 2530 ms returned []
Implicit Place search using SMT with State Equation took 2817 ms to find 0 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 489/489 places, 650/745 transitions.
Applied a total of 0 rules in 15 ms. Remains 489 /489 variables (removed 0) and now considering 650/650 (removed 0) transitions.
Finished structural reductions in LTL mode , in 1 iterations and 4119 ms. Remains : 489/489 places, 650/745 transitions.
Support contains 402 out of 489 places after structural reductions.
[2023-03-24 01:58:45] [INFO ] Flatten gal took : 116 ms
[2023-03-24 01:58:46] [INFO ] Flatten gal took : 94 ms
[2023-03-24 01:58:46] [INFO ] Input system was already deterministic with 650 transitions.
Support contains 401 out of 489 places (down from 402) after GAL structural reductions.
Incomplete random walk after 10000 steps, including 674 resets, run finished after 567 ms. (steps per millisecond=17 ) properties (out of 70) seen :47
Incomplete Best-First random walk after 1001 steps, including 16 resets, run finished after 12 ms. (steps per millisecond=83 ) properties (out of 23) seen :0
Incomplete Best-First random walk after 1000 steps, including 24 resets, run finished after 9 ms. (steps per millisecond=111 ) properties (out of 23) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 32 ms. (steps per millisecond=31 ) properties (out of 23) seen :0
Incomplete Best-First random walk after 1001 steps, including 22 resets, run finished after 12 ms. (steps per millisecond=83 ) properties (out of 23) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 4 ms. (steps per millisecond=250 ) properties (out of 23) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 3 ms. (steps per millisecond=333 ) properties (out of 23) seen :0
Incomplete Best-First random walk after 1001 steps, including 3 resets, run finished after 6 ms. (steps per millisecond=166 ) properties (out of 23) seen :0
Incomplete Best-First random walk after 1001 steps, including 15 resets, run finished after 7 ms. (steps per millisecond=143 ) properties (out of 23) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 3 ms. (steps per millisecond=333 ) properties (out of 23) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 3 ms. (steps per millisecond=333 ) properties (out of 23) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 5 ms. (steps per millisecond=200 ) properties (out of 23) seen :1
Incomplete Best-First random walk after 1000 steps, including 25 resets, run finished after 8 ms. (steps per millisecond=125 ) properties (out of 22) seen :0
Incomplete Best-First random walk after 1001 steps, including 22 resets, run finished after 11 ms. (steps per millisecond=91 ) properties (out of 22) seen :0
Incomplete Best-First random walk after 1001 steps, including 16 resets, run finished after 10 ms. (steps per millisecond=100 ) properties (out of 22) seen :0
Incomplete Best-First random walk after 1001 steps, including 16 resets, run finished after 10 ms. (steps per millisecond=100 ) properties (out of 22) seen :1
Incomplete Best-First random walk after 1001 steps, including 9 resets, run finished after 9 ms. (steps per millisecond=111 ) properties (out of 21) seen :0
Incomplete Best-First random walk after 1001 steps, including 10 resets, run finished after 7 ms. (steps per millisecond=143 ) properties (out of 21) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 4 ms. (steps per millisecond=250 ) properties (out of 21) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 4 ms. (steps per millisecond=250 ) properties (out of 21) seen :0
Incomplete Best-First random walk after 1001 steps, including 6 resets, run finished after 6 ms. (steps per millisecond=166 ) properties (out of 21) seen :0
Incomplete Best-First random walk after 1000 steps, including 2 resets, run finished after 7 ms. (steps per millisecond=142 ) properties (out of 21) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 4 ms. (steps per millisecond=250 ) properties (out of 21) seen :0
Running SMT prover for 21 properties.
[2023-03-24 01:58:47] [INFO ] Flow matrix only has 646 transitions (discarded 4 similar events)
[2023-03-24 01:58:47] [INFO ] Invariant cache hit.
[2023-03-24 01:58:47] [INFO ] [Real]Absence check using 58 positive place invariants in 12 ms returned sat
[2023-03-24 01:58:47] [INFO ] [Real]Absence check using 58 positive and 24 generalized place invariants in 22 ms returned sat
[2023-03-24 01:58:48] [INFO ] After 683ms SMT Verify possible using all constraints in real domain returned unsat :7 sat :0 real:14
[2023-03-24 01:58:48] [INFO ] [Nat]Absence check using 58 positive place invariants in 13 ms returned sat
[2023-03-24 01:58:48] [INFO ] [Nat]Absence check using 58 positive and 24 generalized place invariants in 23 ms returned sat
[2023-03-24 01:58:53] [INFO ] After 4871ms SMT Verify possible using state equation in natural domain returned unsat :10 sat :11
[2023-03-24 01:58:53] [INFO ] State equation strengthened by 1 read => feed constraints.
[2023-03-24 01:58:57] [INFO ] After 3757ms SMT Verify possible using 1 Read/Feed constraints in natural domain returned unsat :10 sat :11
[2023-03-24 01:58:57] [INFO ] Deduced a trap composed of 164 places in 241 ms of which 6 ms to minimize.
[2023-03-24 01:58:57] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 319 ms
[2023-03-24 01:58:58] [INFO ] Deduced a trap composed of 104 places in 228 ms of which 2 ms to minimize.
[2023-03-24 01:59:07] [INFO ] Trap strengthening (SAT) tested/added 1/1 trap constraints in 9267 ms
[2023-03-24 01:59:08] [INFO ] Deduced a trap composed of 112 places in 257 ms of which 1 ms to minimize.
[2023-03-24 01:59:09] [INFO ] Deduced a trap composed of 108 places in 262 ms of which 2 ms to minimize.
[2023-03-24 01:59:09] [INFO ] Deduced a trap composed of 104 places in 253 ms of which 1 ms to minimize.
[2023-03-24 01:59:09] [INFO ] Deduced a trap composed of 24 places in 202 ms of which 1 ms to minimize.
[2023-03-24 01:59:13] [INFO ] Trap strengthening (SAT) tested/added 4/4 trap constraints in 4514 ms
java.lang.RuntimeException: SMT solver raised an error when submitting script. Raised (error "Failed to assert expression: java.io.IOException: Stream close...
at fr.lip6.move.gal.structural.smt.SMTUtils.execAndCheckResult(SMTUtils.java:251)
at fr.lip6.move.gal.structural.smt.DeadlockTester.refineResultsWithTraps(DeadlockTester.java:769)
at fr.lip6.move.gal.structural.smt.DeadlockTester.verifyPossible(DeadlockTester.java:656)
at fr.lip6.move.gal.structural.smt.DeadlockTester.testUnreachableWithSMTIncremental(DeadlockTester.java:350)
at fr.lip6.move.gal.structural.smt.DeadlockTester.testUnreachableWithSMT(DeadlockTester.java:223)
at fr.lip6.move.gal.application.solver.ReachabilitySolver.applyReductions(ReachabilitySolver.java:95)
at fr.lip6.move.gal.application.solver.logic.AtomicReducerSR.checkAtomicPropositionsLogic(AtomicReducerSR.java:105)
at fr.lip6.move.gal.application.solver.logic.AtomicReducerSR.strongReductions(AtomicReducerSR.java:44)
at fr.lip6.move.gal.application.solver.ltl.LTLPropertySolver.preSolveForLogic(LTLPropertySolver.java:176)
at fr.lip6.move.gal.application.Application.startNoEx(Application.java:626)
at fr.lip6.move.gal.application.Application.start(Application.java:178)
at fr.lip6.move.gal.itscl.application.Application.start(Application.java:45)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:203)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:136)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:402)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:255)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:568)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:659)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:596)
at org.eclipse.equinox.launcher.Main.run(Main.java:1467)
at org.eclipse.equinox.launcher.Main.main(Main.java:1440)
[2023-03-24 01:59:13] [WARNING] SMT solver failed with error :SMT solver raised an error when submitting script.... while checking expressions.
[2023-03-24 01:59:13] [INFO ] After 25020ms SMT Verify possible using all constraints in natural domain returned unsat :7 sat :0 real:14
Fused 21 Parikh solutions to 11 different solutions.
Parikh walk visited 0 properties in 108 ms.
Support contains 24 out of 489 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 489/489 places, 650/650 transitions.
Ensure Unique test removed 5 places
Drop transitions removed 30 transitions
Trivial Post-agglo rules discarded 30 transitions
Performed 30 trivial Post agglomeration. Transition count delta: 30
Iterating post reduction 0 with 35 rules applied. Total rules applied 35 place count 484 transition count 620
Reduce places removed 30 places and 0 transitions.
Iterating post reduction 1 with 30 rules applied. Total rules applied 65 place count 454 transition count 620
Performed 33 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 33 Pre rules applied. Total rules applied 65 place count 454 transition count 587
Deduced a syphon composed of 33 places in 0 ms
Reduce places removed 33 places and 0 transitions.
Iterating global reduction 2 with 66 rules applied. Total rules applied 131 place count 421 transition count 587
Discarding 1 places :
Symmetric choice reduction at 2 with 1 rule applications. Total rules 132 place count 420 transition count 586
Iterating global reduction 2 with 1 rules applied. Total rules applied 133 place count 420 transition count 586
Performed 2 Post agglomeration using F-continuation condition.Transition count delta: 2
Deduced a syphon composed of 2 places in 1 ms
Reduce places removed 2 places and 0 transitions.
Iterating global reduction 2 with 4 rules applied. Total rules applied 137 place count 418 transition count 584
Applied a total of 137 rules in 128 ms. Remains 418 /489 variables (removed 71) and now considering 584/650 (removed 66) transitions.
[2023-03-24 01:59:13] [INFO ] Flow matrix only has 580 transitions (discarded 4 similar events)
// Phase 1: matrix 580 rows 418 cols
[2023-03-24 01:59:13] [INFO ] Computed 77 place invariants in 14 ms
[2023-03-24 01:59:13] [INFO ] Dead Transitions using invariants and state equation in 522 ms found 0 transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 655 ms. Remains : 418/489 places, 584/650 transitions.
Finished random walk after 5608 steps, including 246 resets, run visited all 11 properties in 113 ms. (steps per millisecond=49 )
Successfully simplified 10 atomic propositions for a total of 16 simplifications.
Initial state reduction rules removed 1 formulas.
FORMULA PolyORBNT-PT-S05J30-CTLFireability-15 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
[2023-03-24 01:59:14] [INFO ] Initial state reduction rules for CTL removed 1 formulas.
[2023-03-24 01:59:14] [INFO ] Flatten gal took : 55 ms
FORMULA PolyORBNT-PT-S05J30-CTLFireability-13 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
[2023-03-24 01:59:14] [INFO ] Flatten gal took : 58 ms
[2023-03-24 01:59:14] [INFO ] Input system was already deterministic with 650 transitions.
Support contains 392 out of 489 places (down from 396) after GAL structural reductions.
Computed a total of 0 stabilizing places and 0 stable transitions
Starting structural reductions in LTL mode, iteration 0 : 489/489 places, 650/650 transitions.
Ensure Unique test removed 5 places
Iterating post reduction 0 with 5 rules applied. Total rules applied 5 place count 484 transition count 650
Applied a total of 5 rules in 7 ms. Remains 484 /489 variables (removed 5) and now considering 650/650 (removed 0) transitions.
[2023-03-24 01:59:14] [INFO ] Flow matrix only has 646 transitions (discarded 4 similar events)
// Phase 1: matrix 646 rows 484 cols
[2023-03-24 01:59:14] [INFO ] Computed 77 place invariants in 11 ms
[2023-03-24 01:59:15] [INFO ] Dead Transitions using invariants and state equation in 757 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 765 ms. Remains : 484/489 places, 650/650 transitions.
[2023-03-24 01:59:15] [INFO ] Flatten gal took : 36 ms
[2023-03-24 01:59:15] [INFO ] Flatten gal took : 35 ms
[2023-03-24 01:59:15] [INFO ] Input system was already deterministic with 650 transitions.
Starting structural reductions in LTL mode, iteration 0 : 489/489 places, 650/650 transitions.
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 1 place count 488 transition count 649
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 488 transition count 649
Applied a total of 2 rules in 22 ms. Remains 488 /489 variables (removed 1) and now considering 649/650 (removed 1) transitions.
[2023-03-24 01:59:15] [INFO ] Flow matrix only has 645 transitions (discarded 4 similar events)
// Phase 1: matrix 645 rows 488 cols
[2023-03-24 01:59:15] [INFO ] Computed 82 place invariants in 12 ms
[2023-03-24 01:59:16] [INFO ] Dead Transitions using invariants and state equation in 902 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 926 ms. Remains : 488/489 places, 649/650 transitions.
[2023-03-24 01:59:16] [INFO ] Flatten gal took : 30 ms
[2023-03-24 01:59:16] [INFO ] Flatten gal took : 55 ms
[2023-03-24 01:59:16] [INFO ] Input system was already deterministic with 649 transitions.
Starting structural reductions in SI_CTL mode, iteration 0 : 489/489 places, 650/650 transitions.
Ensure Unique test removed 5 places
Drop transitions removed 35 transitions
Trivial Post-agglo rules discarded 35 transitions
Performed 35 trivial Post agglomeration. Transition count delta: 35
Iterating post reduction 0 with 35 rules applied. Total rules applied 35 place count 484 transition count 615
Reduce places removed 35 places and 0 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Iterating post reduction 1 with 36 rules applied. Total rules applied 71 place count 449 transition count 614
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 2 with 1 rules applied. Total rules applied 72 place count 448 transition count 614
Performed 35 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 35 Pre rules applied. Total rules applied 72 place count 448 transition count 579
Deduced a syphon composed of 35 places in 0 ms
Reduce places removed 35 places and 0 transitions.
Iterating global reduction 3 with 70 rules applied. Total rules applied 142 place count 413 transition count 579
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 26 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 3 with 2 rules applied. Total rules applied 144 place count 412 transition count 578
Applied a total of 144 rules in 136 ms. Remains 412 /489 variables (removed 77) and now considering 578/650 (removed 72) transitions.
[2023-03-24 01:59:16] [INFO ] Flow matrix only has 574 transitions (discarded 4 similar events)
// Phase 1: matrix 574 rows 412 cols
[2023-03-24 01:59:16] [INFO ] Computed 77 place invariants in 7 ms
[2023-03-24 01:59:17] [INFO ] Dead Transitions using invariants and state equation in 712 ms found 0 transitions.
Finished structural reductions in SI_CTL mode , in 1 iterations and 850 ms. Remains : 412/489 places, 578/650 transitions.
[2023-03-24 01:59:17] [INFO ] Flatten gal took : 29 ms
[2023-03-24 01:59:17] [INFO ] Flatten gal took : 39 ms
[2023-03-24 01:59:17] [INFO ] Input system was already deterministic with 578 transitions.
Finished random walk after 40 steps, including 2 resets, run visited all 1 properties in 2 ms. (steps per millisecond=20 )
FORMULA PolyORBNT-PT-S05J30-CTLFireability-02 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
Starting structural reductions in SI_CTL mode, iteration 0 : 489/489 places, 650/650 transitions.
Ensure Unique test removed 5 places
Drop transitions removed 35 transitions
Trivial Post-agglo rules discarded 35 transitions
Performed 35 trivial Post agglomeration. Transition count delta: 35
Iterating post reduction 0 with 35 rules applied. Total rules applied 35 place count 484 transition count 615
Reduce places removed 35 places and 0 transitions.
Iterating post reduction 1 with 35 rules applied. Total rules applied 70 place count 449 transition count 615
Performed 34 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 34 Pre rules applied. Total rules applied 70 place count 449 transition count 581
Deduced a syphon composed of 34 places in 1 ms
Reduce places removed 34 places and 0 transitions.
Iterating global reduction 2 with 68 rules applied. Total rules applied 138 place count 415 transition count 581
Discarding 1 places :
Symmetric choice reduction at 2 with 1 rule applications. Total rules 139 place count 414 transition count 580
Iterating global reduction 2 with 1 rules applied. Total rules applied 140 place count 414 transition count 580
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 144 place count 412 transition count 578
Applied a total of 144 rules in 84 ms. Remains 412 /489 variables (removed 77) and now considering 578/650 (removed 72) transitions.
[2023-03-24 01:59:17] [INFO ] Flow matrix only has 574 transitions (discarded 4 similar events)
// Phase 1: matrix 574 rows 412 cols
[2023-03-24 01:59:17] [INFO ] Computed 77 place invariants in 7 ms
[2023-03-24 01:59:18] [INFO ] Dead Transitions using invariants and state equation in 550 ms found 0 transitions.
Finished structural reductions in SI_CTL mode , in 1 iterations and 637 ms. Remains : 412/489 places, 578/650 transitions.
[2023-03-24 01:59:18] [INFO ] Flatten gal took : 26 ms
[2023-03-24 01:59:18] [INFO ] Flatten gal took : 25 ms
[2023-03-24 01:59:18] [INFO ] Input system was already deterministic with 578 transitions.
Starting structural reductions in SI_CTL mode, iteration 0 : 489/489 places, 650/650 transitions.
Drop transitions removed 33 transitions
Trivial Post-agglo rules discarded 33 transitions
Performed 33 trivial Post agglomeration. Transition count delta: 33
Iterating post reduction 0 with 33 rules applied. Total rules applied 33 place count 489 transition count 617
Reduce places removed 33 places and 0 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Iterating post reduction 1 with 34 rules applied. Total rules applied 67 place count 456 transition count 616
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 2 with 1 rules applied. Total rules applied 68 place count 455 transition count 616
Performed 34 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 34 Pre rules applied. Total rules applied 68 place count 455 transition count 582
Deduced a syphon composed of 34 places in 0 ms
Reduce places removed 34 places and 0 transitions.
Iterating global reduction 3 with 68 rules applied. Total rules applied 136 place count 421 transition count 582
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 3 with 2 rules applied. Total rules applied 138 place count 420 transition count 581
Applied a total of 138 rules in 46 ms. Remains 420 /489 variables (removed 69) and now considering 581/650 (removed 69) transitions.
[2023-03-24 01:59:18] [INFO ] Flow matrix only has 577 transitions (discarded 4 similar events)
// Phase 1: matrix 577 rows 420 cols
[2023-03-24 01:59:18] [INFO ] Computed 82 place invariants in 8 ms
[2023-03-24 01:59:18] [INFO ] Dead Transitions using invariants and state equation in 492 ms found 0 transitions.
Finished structural reductions in SI_CTL mode , in 1 iterations and 543 ms. Remains : 420/489 places, 581/650 transitions.
[2023-03-24 01:59:18] [INFO ] Flatten gal took : 23 ms
[2023-03-24 01:59:18] [INFO ] Flatten gal took : 25 ms
[2023-03-24 01:59:18] [INFO ] Input system was already deterministic with 581 transitions.
Starting structural reductions in LTL mode, iteration 0 : 489/489 places, 650/650 transitions.
Ensure Unique test removed 5 places
Iterating post reduction 0 with 5 rules applied. Total rules applied 5 place count 484 transition count 650
Applied a total of 5 rules in 9 ms. Remains 484 /489 variables (removed 5) and now considering 650/650 (removed 0) transitions.
[2023-03-24 01:59:18] [INFO ] Flow matrix only has 646 transitions (discarded 4 similar events)
// Phase 1: matrix 646 rows 484 cols
[2023-03-24 01:59:18] [INFO ] Computed 77 place invariants in 9 ms
[2023-03-24 01:59:19] [INFO ] Dead Transitions using invariants and state equation in 702 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 712 ms. Remains : 484/489 places, 650/650 transitions.
[2023-03-24 01:59:19] [INFO ] Flatten gal took : 24 ms
[2023-03-24 01:59:19] [INFO ] Flatten gal took : 39 ms
[2023-03-24 01:59:19] [INFO ] Input system was already deterministic with 650 transitions.
Starting structural reductions in LTL mode, iteration 0 : 489/489 places, 650/650 transitions.
Ensure Unique test removed 5 places
Iterating post reduction 0 with 5 rules applied. Total rules applied 5 place count 484 transition count 650
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 6 place count 483 transition count 649
Iterating global reduction 1 with 1 rules applied. Total rules applied 7 place count 483 transition count 649
Applied a total of 7 rules in 14 ms. Remains 483 /489 variables (removed 6) and now considering 649/650 (removed 1) transitions.
[2023-03-24 01:59:19] [INFO ] Flow matrix only has 645 transitions (discarded 4 similar events)
// Phase 1: matrix 645 rows 483 cols
[2023-03-24 01:59:19] [INFO ] Computed 77 place invariants in 8 ms
[2023-03-24 01:59:20] [INFO ] Dead Transitions using invariants and state equation in 706 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 723 ms. Remains : 483/489 places, 649/650 transitions.
[2023-03-24 01:59:20] [INFO ] Flatten gal took : 25 ms
[2023-03-24 01:59:20] [INFO ] Flatten gal took : 24 ms
[2023-03-24 01:59:20] [INFO ] Input system was already deterministic with 649 transitions.
Starting structural reductions in LTL mode, iteration 0 : 489/489 places, 650/650 transitions.
Applied a total of 0 rules in 3 ms. Remains 489 /489 variables (removed 0) and now considering 650/650 (removed 0) transitions.
[2023-03-24 01:59:20] [INFO ] Flow matrix only has 646 transitions (discarded 4 similar events)
// Phase 1: matrix 646 rows 489 cols
[2023-03-24 01:59:20] [INFO ] Computed 82 place invariants in 17 ms
[2023-03-24 01:59:21] [INFO ] Dead Transitions using invariants and state equation in 792 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 797 ms. Remains : 489/489 places, 650/650 transitions.
[2023-03-24 01:59:21] [INFO ] Flatten gal took : 23 ms
[2023-03-24 01:59:21] [INFO ] Flatten gal took : 25 ms
[2023-03-24 01:59:21] [INFO ] Input system was already deterministic with 650 transitions.
Starting structural reductions in LTL mode, iteration 0 : 489/489 places, 650/650 transitions.
Ensure Unique test removed 5 places
Iterating post reduction 0 with 5 rules applied. Total rules applied 5 place count 484 transition count 650
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 6 place count 483 transition count 649
Iterating global reduction 1 with 1 rules applied. Total rules applied 7 place count 483 transition count 649
Applied a total of 7 rules in 13 ms. Remains 483 /489 variables (removed 6) and now considering 649/650 (removed 1) transitions.
[2023-03-24 01:59:21] [INFO ] Flow matrix only has 645 transitions (discarded 4 similar events)
// Phase 1: matrix 645 rows 483 cols
[2023-03-24 01:59:21] [INFO ] Computed 77 place invariants in 14 ms
[2023-03-24 01:59:22] [INFO ] Dead Transitions using invariants and state equation in 686 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 703 ms. Remains : 483/489 places, 649/650 transitions.
[2023-03-24 01:59:22] [INFO ] Flatten gal took : 21 ms
[2023-03-24 01:59:22] [INFO ] Flatten gal took : 23 ms
[2023-03-24 01:59:22] [INFO ] Input system was already deterministic with 649 transitions.
Starting structural reductions in LTL mode, iteration 0 : 489/489 places, 650/650 transitions.
Ensure Unique test removed 5 places
Iterating post reduction 0 with 5 rules applied. Total rules applied 5 place count 484 transition count 650
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 6 place count 483 transition count 649
Iterating global reduction 1 with 1 rules applied. Total rules applied 7 place count 483 transition count 649
Applied a total of 7 rules in 13 ms. Remains 483 /489 variables (removed 6) and now considering 649/650 (removed 1) transitions.
[2023-03-24 01:59:22] [INFO ] Flow matrix only has 645 transitions (discarded 4 similar events)
[2023-03-24 01:59:22] [INFO ] Invariant cache hit.
[2023-03-24 01:59:23] [INFO ] Dead Transitions using invariants and state equation in 810 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 826 ms. Remains : 483/489 places, 649/650 transitions.
[2023-03-24 01:59:23] [INFO ] Flatten gal took : 22 ms
[2023-03-24 01:59:23] [INFO ] Flatten gal took : 22 ms
[2023-03-24 01:59:23] [INFO ] Input system was already deterministic with 649 transitions.
Starting structural reductions in LTL mode, iteration 0 : 489/489 places, 650/650 transitions.
Ensure Unique test removed 5 places
Iterating post reduction 0 with 5 rules applied. Total rules applied 5 place count 484 transition count 650
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 6 place count 483 transition count 649
Iterating global reduction 1 with 1 rules applied. Total rules applied 7 place count 483 transition count 649
Applied a total of 7 rules in 12 ms. Remains 483 /489 variables (removed 6) and now considering 649/650 (removed 1) transitions.
[2023-03-24 01:59:23] [INFO ] Flow matrix only has 645 transitions (discarded 4 similar events)
[2023-03-24 01:59:23] [INFO ] Invariant cache hit.
[2023-03-24 01:59:24] [INFO ] Dead Transitions using invariants and state equation in 807 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 821 ms. Remains : 483/489 places, 649/650 transitions.
[2023-03-24 01:59:24] [INFO ] Flatten gal took : 22 ms
[2023-03-24 01:59:24] [INFO ] Flatten gal took : 22 ms
[2023-03-24 01:59:24] [INFO ] Input system was already deterministic with 649 transitions.
Starting structural reductions in LTL mode, iteration 0 : 489/489 places, 650/650 transitions.
Ensure Unique test removed 5 places
Iterating post reduction 0 with 5 rules applied. Total rules applied 5 place count 484 transition count 650
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 6 place count 483 transition count 649
Iterating global reduction 1 with 1 rules applied. Total rules applied 7 place count 483 transition count 649
Applied a total of 7 rules in 13 ms. Remains 483 /489 variables (removed 6) and now considering 649/650 (removed 1) transitions.
[2023-03-24 01:59:24] [INFO ] Flow matrix only has 645 transitions (discarded 4 similar events)
[2023-03-24 01:59:24] [INFO ] Invariant cache hit.
[2023-03-24 01:59:25] [INFO ] Dead Transitions using invariants and state equation in 741 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 777 ms. Remains : 483/489 places, 649/650 transitions.
[2023-03-24 01:59:25] [INFO ] Flatten gal took : 21 ms
[2023-03-24 01:59:25] [INFO ] Flatten gal took : 33 ms
[2023-03-24 01:59:25] [INFO ] Input system was already deterministic with 649 transitions.
Starting structural reductions in LTL mode, iteration 0 : 489/489 places, 650/650 transitions.
Ensure Unique test removed 5 places
Iterating post reduction 0 with 5 rules applied. Total rules applied 5 place count 484 transition count 650
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 6 place count 483 transition count 649
Iterating global reduction 1 with 1 rules applied. Total rules applied 7 place count 483 transition count 649
Applied a total of 7 rules in 13 ms. Remains 483 /489 variables (removed 6) and now considering 649/650 (removed 1) transitions.
[2023-03-24 01:59:25] [INFO ] Flow matrix only has 645 transitions (discarded 4 similar events)
[2023-03-24 01:59:25] [INFO ] Invariant cache hit.
[2023-03-24 01:59:25] [INFO ] Dead Transitions using invariants and state equation in 785 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 801 ms. Remains : 483/489 places, 649/650 transitions.
[2023-03-24 01:59:25] [INFO ] Flatten gal took : 30 ms
[2023-03-24 01:59:25] [INFO ] Flatten gal took : 23 ms
[2023-03-24 01:59:26] [INFO ] Input system was already deterministic with 649 transitions.
Starting structural reductions in SI_CTL mode, iteration 0 : 489/489 places, 650/650 transitions.
Ensure Unique test removed 5 places
Drop transitions removed 34 transitions
Trivial Post-agglo rules discarded 34 transitions
Performed 34 trivial Post agglomeration. Transition count delta: 34
Iterating post reduction 0 with 34 rules applied. Total rules applied 34 place count 484 transition count 616
Reduce places removed 34 places and 0 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Iterating post reduction 1 with 35 rules applied. Total rules applied 69 place count 450 transition count 615
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 2 with 1 rules applied. Total rules applied 70 place count 449 transition count 615
Performed 33 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 33 Pre rules applied. Total rules applied 70 place count 449 transition count 582
Deduced a syphon composed of 33 places in 0 ms
Reduce places removed 33 places and 0 transitions.
Iterating global reduction 3 with 66 rules applied. Total rules applied 136 place count 416 transition count 582
Discarding 1 places :
Symmetric choice reduction at 3 with 1 rule applications. Total rules 137 place count 415 transition count 581
Iterating global reduction 3 with 1 rules applied. Total rules applied 138 place count 415 transition count 581
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 3 with 4 rules applied. Total rules applied 142 place count 413 transition count 579
Applied a total of 142 rules in 47 ms. Remains 413 /489 variables (removed 76) and now considering 579/650 (removed 71) transitions.
[2023-03-24 01:59:26] [INFO ] Flow matrix only has 575 transitions (discarded 4 similar events)
// Phase 1: matrix 575 rows 413 cols
[2023-03-24 01:59:26] [INFO ] Computed 77 place invariants in 7 ms
[2023-03-24 01:59:26] [INFO ] Dead Transitions using invariants and state equation in 508 ms found 0 transitions.
Finished structural reductions in SI_CTL mode , in 1 iterations and 557 ms. Remains : 413/489 places, 579/650 transitions.
[2023-03-24 01:59:26] [INFO ] Flatten gal took : 18 ms
[2023-03-24 01:59:26] [INFO ] Flatten gal took : 19 ms
[2023-03-24 01:59:26] [INFO ] Input system was already deterministic with 579 transitions.
[2023-03-24 01:59:26] [INFO ] Flatten gal took : 44 ms
[2023-03-24 01:59:26] [INFO ] Flatten gal took : 32 ms
[2023-03-24 01:59:26] [INFO ] Export to MCC of 13 properties in file /home/mcc/execution/CTLFireability.sr.xml took 17 ms.
[2023-03-24 01:59:26] [INFO ] Export to PNML in file /home/mcc/execution/model.sr.pnml of net with 489 places, 650 transitions and 3264 arcs took 4 ms.
Total runtime 45820 ms.
There are residual formulas that ITS could not solve within timeout
pnml2lts-sym model.pnml --lace-workers=4 --vset=lddmc --saturation=sat -rbs,w2W,ru,hf --sylvan-sizes=20,28,20,28 --ctl=/tmp/557/ctl_0_ --ctl=/tmp/557/ctl_1_ --ctl=/tmp/557/ctl_2_ --ctl=/tmp/557/ctl_3_ --ctl=/tmp/557/ctl_4_ --ctl=/tmp/557/ctl_5_ --ctl=/tmp/557/ctl_6_ --ctl=/tmp/557/ctl_7_ --ctl=/tmp/557/ctl_8_ --ctl=/tmp/557/ctl_9_ --ctl=/tmp/557/ctl_10_ --ctl=/tmp/557/ctl_11_ --ctl=/tmp/557/ctl_12_ --mu-par --mu-opt
TIME LIMIT: Killed by timeout after 3600 seconds
MemTotal: 16393216 kB
MemFree: 14107100 kB
After kill :
MemTotal: 16393216 kB
MemFree: 16096228 kB

BK_TIME_CONFINEMENT_REACHED

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

+ ulimit -s 65536
+ [[ -z '' ]]
+ export LTSMIN_MEM_SIZE=8589934592
+ LTSMIN_MEM_SIZE=8589934592
+ export PYTHONPATH=/home/mcc/BenchKit/itstools/pylibs
+ PYTHONPATH=/home/mcc/BenchKit/itstools/pylibs
+ export LD_LIBRARY_PATH=/home/mcc/BenchKit/itstools/pylibs:
+ LD_LIBRARY_PATH=/home/mcc/BenchKit/itstools/pylibs:
++ sed s/.jar//
++ perl -pe 's/.*\.//g'
++ ls /home/mcc/BenchKit/bin//../reducer/bin//../../itstools//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202303021504.jar
+ VERSION=202303021504
+ echo 'Running Version 202303021504'
+ /home/mcc/BenchKit/bin//../reducer/bin//../../itstools//itstools/its-tools -pnfolder /home/mcc/execution -examination CTLFireability -timeout 360 -rebuildPNML
mcc2023

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="PolyORBNT-PT-S05J30"
export BK_EXAMINATION="CTLFireability"
export BK_TOOL="ltsminxred"
export BK_RESULT_DIR="/tmp/BK_RESULTS/OUTPUTS"
export BK_TIME_CONFINEMENT="3600"
export BK_MEMORY_CONFINEMENT="16384"
export BK_BIN_PATH="/home/mcc/BenchKit/bin/"

# this is specific to your benchmark or test

export BIN_DIR="$HOME/BenchKit/bin"

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

# this is for BenchKit: explicit launching of the test
echo "====================================================================="
echo " Generated by BenchKit 2-5348"
echo " Executing tool ltsminxred"
echo " Input is PolyORBNT-PT-S05J30, examination is CTLFireability"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r297-tall-167873950800722"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/PolyORBNT-PT-S05J30.tgz
mv PolyORBNT-PT-S05J30 execution
cd execution
if [ "CTLFireability" = "ReachabilityDeadlock" ] || [ "CTLFireability" = "UpperBounds" ] || [ "CTLFireability" = "QuasiLiveness" ] || [ "CTLFireability" = "StableMarking" ] || [ "CTLFireability" = "Liveness" ] || [ "CTLFireability" = "OneSafe" ] || [ "CTLFireability" = "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 [ "CTLFireability" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "CTLFireability" != "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 "CTLFireability.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property CTLFireability.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "CTLFireability.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 '' CTLFireability.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "CTLFireability" = "ReachabilityDeadlock" ] || [ "CTLFireability" = "QuasiLiveness" ] || [ "CTLFireability" = "StableMarking" ] || [ "CTLFireability" = "Liveness" ] || [ "CTLFireability" = "OneSafe" ] ; then
echo "FORMULA_NAME CTLFireability"
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 ;