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.r185-tall-167838872000352.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2023-input.qcow2 cluster_size=65536 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
....................
=====================================================================
Generated by BenchKit 2-5348
Executing tool smartxred
Input is FlexibleBarrier-PT-18b, examination is QuasiLiveness
Time confinement is 1800 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r185-tall-167838872000352
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 1.6M
-rw-r--r-- 1 mcc users 6.6K Feb 25 12:30 CTLCardinality.txt
-rw-r--r-- 1 mcc users 67K Feb 25 12:30 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.4K Feb 25 12:30 CTLFireability.txt
-rw-r--r-- 1 mcc users 45K Feb 25 12:30 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Jan 29 11:40 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 3.5K Feb 25 16:07 LTLCardinality.txt
-rw-r--r-- 1 mcc users 23K Feb 25 16:07 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.4K Feb 25 16:07 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K Feb 25 16:07 LTLFireability.xml
-rw-r--r-- 1 mcc users 11K Feb 25 12:31 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 104K Feb 25 12:31 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 11K Feb 25 12:31 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 95K Feb 25 12:31 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K Feb 25 16:07 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.8K Feb 25 16:07 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 5 18:22 equiv_col
-rw-r--r-- 1 mcc users 4 Mar 5 18:22 instance
-rw-r--r-- 1 mcc users 6 Mar 5 18:22 iscolored
-rw-r--r-- 1 mcc users 1.2M Mar 5 18:22 model.pnml

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

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

The expected result is a vector of booleans
BOOL_VECTOR

FORMULA_NAME QuasiLiveness

=== Now, execution of the tool begins

BK_START 1679424653649

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=smartxred
BK_EXAMINATION=QuasiLiveness
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=1800
BK_INPUT=FlexibleBarrier-PT-18b
Applying reductions before tool smart
Invoking reducer
Running Version 202303021504
[2023-03-21 18:50:55] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, QuasiLiveness, -timeout, 180, -rebuildPNML]
[2023-03-21 18:50:55] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2023-03-21 18:50:55] [INFO ] Load time of PNML (sax parser for PT used): 188 ms
[2023-03-21 18:50:55] [INFO ] Transformed 4370 places.
[2023-03-21 18:50:55] [INFO ] Transformed 5037 transitions.
[2023-03-21 18:50:55] [INFO ] Found NUPN structural information;
[2023-03-21 18:50:55] [INFO ] Parsed PT model containing 4370 places and 5037 transitions and 12657 arcs in 277 ms.
Starting structural reductions in LIVENESS mode, iteration 0 : 4370/4370 places, 5037/5037 transitions.
Graph (trivial) has 4314 edges and 4370 vertex of which 110 / 4370 are part of one of the 18 SCC in 29 ms
Free SCC test removed 92 places
Ensure Unique test removed 93 transitions
Reduce isomorphic transitions removed 93 transitions.
Drop transitions removed 1071 transitions
Trivial Post-agglo rules discarded 1071 transitions
Performed 1071 trivial Post agglomeration. Transition count delta: 1071
Iterating post reduction 0 with 1071 rules applied. Total rules applied 1072 place count 4278 transition count 3873
Reduce places removed 1071 places and 0 transitions.
Iterating post reduction 1 with 1071 rules applied. Total rules applied 2143 place count 3207 transition count 3873
Performed 306 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 306 Pre rules applied. Total rules applied 2143 place count 3207 transition count 3567
Deduced a syphon composed of 306 places in 17 ms
Reduce places removed 306 places and 0 transitions.
Iterating global reduction 2 with 612 rules applied. Total rules applied 2755 place count 2901 transition count 3567
Performed 1887 Post agglomeration using F-continuation condition.Transition count delta: 1887
Deduced a syphon composed of 1887 places in 1 ms
Reduce places removed 1887 places and 0 transitions.
Iterating global reduction 2 with 3774 rules applied. Total rules applied 6529 place count 1014 transition count 1680
Applied a total of 6529 rules in 480 ms. Remains 1014 /4370 variables (removed 3356) and now considering 1680/5037 (removed 3357) transitions.
[2023-03-21 18:50:55] [INFO ] Flow matrix only has 1627 transitions (discarded 53 similar events)
// Phase 1: matrix 1627 rows 1014 cols
[2023-03-21 18:50:56] [INFO ] Computed 20 place invariants in 79 ms
[2023-03-21 18:50:56] [INFO ] Implicit Places using invariants in 965 ms returned []
[2023-03-21 18:50:56] [INFO ] Flow matrix only has 1627 transitions (discarded 53 similar events)
[2023-03-21 18:50:56] [INFO ] Invariant cache hit.
[2023-03-21 18:50:57] [INFO ] State equation strengthened by 109 read => feed constraints.
[2023-03-21 18:50:58] [INFO ] Implicit Places using invariants and state equation in 1916 ms returned []
Implicit Place search using SMT with State Equation took 2906 ms to find 0 implicit places.
[2023-03-21 18:50:58] [INFO ] Flow matrix only has 1627 transitions (discarded 53 similar events)
[2023-03-21 18:50:58] [INFO ] Invariant cache hit.
[2023-03-21 18:50:59] [INFO ] Dead Transitions using invariants and state equation in 710 ms found 0 transitions.
Starting structural reductions in LIVENESS mode, iteration 1 : 1014/4370 places, 1680/5037 transitions.
Finished structural reductions in LIVENESS mode , in 1 iterations and 4098 ms. Remains : 1014/4370 places, 1680/5037 transitions.
Discarding 975 transitions out of 1680. Remains 705
Initial state reduction rules removed 1 formulas.
Incomplete random walk after 10000 steps, including 424 resets, run finished after 1007 ms. (steps per millisecond=9 ) properties (out of 704) seen :74
Running SMT prover for 630 properties.
[2023-03-21 18:51:01] [INFO ] Flow matrix only has 1627 transitions (discarded 53 similar events)
[2023-03-21 18:51:01] [INFO ] Invariant cache hit.
[2023-03-21 18:51:11] [INFO ] [Real]Absence check using 20 positive place invariants in 18 ms returned sat
[2023-03-21 18:51:26] [INFO ] After 6790ms SMT Verify possible using state equation in real domain returned unsat :0 sat :629
[2023-03-21 18:51:26] [INFO ] State equation strengthened by 109 read => feed constraints.
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.verifyPossible(DeadlockTester.java:642)
at fr.lip6.move.gal.structural.smt.DeadlockTester.testUnreachableWithSMTIncremental(DeadlockTester.java:339)
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.global.GlobalPropertySolver.applyReachabilitySolver(GlobalPropertySolver.java:724)
at fr.lip6.move.gal.application.solver.global.GlobalPropertySolver.solveProperty(GlobalPropertySolver.java:558)
at fr.lip6.move.gal.application.solver.global.GlobalPropertySolver.preSolveLiveness(GlobalPropertySolver.java:412)
at fr.lip6.move.gal.application.solver.global.GlobalPropertySolver.preStableMarking(GlobalPropertySolver.java:321)
at fr.lip6.move.gal.application.solver.global.GlobalPropertySolver.solveProperty(GlobalPropertySolver.java:294)
at fr.lip6.move.gal.application.Application.startNoEx(Application.java:386)
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)
[2023-03-21 18:51:26] [WARNING] SMT solver failed with error :SMT solver raised an error when submitting script.... while checking expressions.
[2023-03-21 18:51:26] [INFO ] After 25036ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0
Fused 630 Parikh solutions to 142 different solutions.
Parikh walk visited 0 properties in 117 ms.
Support contains 938 out of 1014 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 1014/1014 places, 1680/1680 transitions.
Drop transitions removed 54 transitions
Reduce isomorphic transitions removed 54 transitions.
Iterating post reduction 0 with 54 rules applied. Total rules applied 54 place count 1014 transition count 1626
Free-agglomeration rule applied 20 times.
Iterating global reduction 1 with 20 rules applied. Total rules applied 74 place count 1014 transition count 1606
Reduce places removed 20 places and 0 transitions.
Iterating post reduction 1 with 20 rules applied. Total rules applied 94 place count 994 transition count 1606
Applied a total of 94 rules in 335 ms. Remains 994 /1014 variables (removed 20) and now considering 1606/1680 (removed 74) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 336 ms. Remains : 994/1014 places, 1606/1680 transitions.
Interrupted random walk after 357386 steps, including 16209 resets, run timeout after 30001 ms. (steps per millisecond=11 ) properties seen 23
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 2 ms. (steps per millisecond=500 ) properties (out of 607) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 2 ms. (steps per millisecond=500 ) properties (out of 607) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 2 ms. (steps per millisecond=500 ) properties (out of 607) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 2 ms. (steps per millisecond=500 ) properties (out of 607) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 2 ms. (steps per millisecond=500 ) properties (out of 607) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 2 ms. (steps per millisecond=500 ) properties (out of 607) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 2 ms. (steps per millisecond=500 ) properties (out of 607) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 2 ms. (steps per millisecond=500 ) properties (out of 607) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 2 ms. (steps per millisecond=500 ) properties (out of 607) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 2 ms. (steps per millisecond=500 ) properties (out of 607) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 2 ms. (steps per millisecond=500 ) properties (out of 607) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 2 ms. (steps per millisecond=500 ) properties (out of 607) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 2 ms. (steps per millisecond=500 ) properties (out of 607) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 2 ms. (steps per millisecond=500 ) properties (out of 607) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 2 ms. (steps per millisecond=500 ) properties (out of 607) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 2 ms. (steps per millisecond=500 ) properties (out of 607) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 2 ms. (steps per millisecond=500 ) properties (out of 607) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 2 ms. (steps per millisecond=500 ) properties (out of 607) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 2 ms. (steps per millisecond=500 ) properties (out of 607) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 2 ms. (steps per millisecond=500 ) properties (out of 607) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 2 ms. (steps per millisecond=500 ) properties (out of 607) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 2 ms. (steps per millisecond=500 ) properties (out of 607) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 2 ms. (steps per millisecond=500 ) properties (out of 607) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 2 ms. (steps per millisecond=500 ) properties (out of 607) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 2 ms. (steps per millisecond=500 ) properties (out of 607) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 2 ms. (steps per millisecond=500 ) properties (out of 607) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 2 ms. (steps per millisecond=500 ) properties (out of 607) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 2 ms. (steps per millisecond=500 ) properties (out of 607) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 2 ms. (steps per millisecond=500 ) properties (out of 607) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 2 ms. (steps per millisecond=500 ) properties (out of 607) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 2 ms. (steps per millisecond=500 ) properties (out of 607) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 2 ms. (steps per millisecond=500 ) properties (out of 607) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 2 ms. (steps per millisecond=500 ) properties (out of 607) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 2 ms. (steps per millisecond=500 ) properties (out of 607) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 2 ms. (steps per millisecond=500 ) properties (out of 607) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 2 ms. (steps per millisecond=500 ) properties (out of 607) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 2 ms. (steps per millisecond=500 ) properties (out of 607) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 2 ms. (steps per millisecond=500 ) properties (out of 607) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 2 ms. (steps per millisecond=500 ) properties (out of 607) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 2 ms. (steps per millisecond=500 ) properties (out of 607) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 2 ms. (steps per millisecond=500 ) properties (out of 607) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 2 ms. (steps per millisecond=500 ) properties (out of 607) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 2 ms. (steps per millisecond=500 ) properties (out of 607) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 2 ms. (steps per millisecond=500 ) properties (out of 607) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 2 ms. (steps per millisecond=500 ) properties (out of 607) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 2 ms. (steps per millisecond=500 ) properties (out of 607) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 2 ms. (steps per millisecond=500 ) properties (out of 607) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 2 ms. (steps per millisecond=500 ) properties (out of 607) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 2 ms. (steps per millisecond=500 ) properties (out of 607) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 2 ms. (steps per millisecond=500 ) properties (out of 607) seen :0
Probabilistic random walk after 1000000 steps, saw 313603 distinct states, run finished after 29491 ms. (steps per millisecond=33 ) properties seen :3
Running SMT prover for 604 properties.
// Phase 1: matrix 1606 rows 994 cols
[2023-03-21 18:52:27] [INFO ] Computed 20 place invariants in 40 ms
[2023-03-21 18:52:36] [INFO ] [Real]Absence check using 20 positive place invariants in 18 ms returned sat
[2023-03-21 18:53:13] [INFO ] After 29129ms SMT Verify possible using state equation in real domain returned unsat :0 sat :592 real:12
[2023-03-21 18:53:13] [INFO ] State equation strengthened by 110 read => feed constraints.
[2023-03-21 18:53:43] [INFO ] After 29279ms SMT Verify possible using 110 Read/Feed constraints in real domain returned unsat :0 sat :592 real:12
[2023-03-21 18:54:32] [INFO ] After 78223ms SMT Verify possible using trap constraints in real domain returned unsat :0 sat :592 real:12
Attempting to minimize the solution found.
Minimization took 29588 ms.
[2023-03-21 18:55:01] [INFO ] After 154191ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :592 real:12
[2023-03-21 18:55:10] [INFO ] [Nat]Absence check using 20 positive place invariants in 15 ms returned sat
[2023-03-21 18:55:47] [INFO ] After 28442ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :604
[2023-03-21 18:56:17] [INFO ] After 30279ms SMT Verify possible using 110 Read/Feed constraints in natural domain returned unsat :0 sat :604
[2023-03-21 18:57:06] [INFO ] After 79348ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :604
Attempting to minimize the solution found.
Minimization took 30123 ms.
[2023-03-21 18:57:36] [INFO ] After 154804ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :604
Parikh walk visited 358 properties in 4651 ms.
Support contains 438 out of 994 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 994/994 places, 1606/1606 transitions.
Discarding 131 places :
Symmetric choice reduction at 0 with 131 rule applications. Total rules 131 place count 863 transition count 1475
Iterating global reduction 0 with 131 rules applied. Total rules applied 262 place count 863 transition count 1475
Ensure Unique test removed 115 transitions
Reduce isomorphic transitions removed 115 transitions.
Iterating post reduction 0 with 115 rules applied. Total rules applied 377 place count 863 transition count 1360
Free-agglomeration rule applied 332 times.
Iterating global reduction 1 with 332 rules applied. Total rules applied 709 place count 863 transition count 1028
Reduce places removed 332 places and 0 transitions.
Iterating post reduction 1 with 332 rules applied. Total rules applied 1041 place count 531 transition count 1028
Applied a total of 1041 rules in 273 ms. Remains 531 /994 variables (removed 463) and now considering 1028/1606 (removed 578) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 274 ms. Remains : 531/994 places, 1028/1606 transitions.
Interrupted random walk after 604639 steps, including 26724 resets, run timeout after 30001 ms. (steps per millisecond=20 ) properties seen 130
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 9 ms. (steps per millisecond=1111 ) properties (out of 116) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 8 ms. (steps per millisecond=1250 ) properties (out of 115) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 8 ms. (steps per millisecond=1250 ) properties (out of 114) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 8 ms. (steps per millisecond=1250 ) properties (out of 113) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 9 ms. (steps per millisecond=1111 ) properties (out of 112) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 8 ms. (steps per millisecond=1250 ) properties (out of 111) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 8 ms. (steps per millisecond=1250 ) properties (out of 110) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 8 ms. (steps per millisecond=1250 ) properties (out of 109) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 8 ms. (steps per millisecond=1250 ) properties (out of 108) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 8 ms. (steps per millisecond=1250 ) properties (out of 107) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 7 ms. (steps per millisecond=1428 ) properties (out of 106) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 8 ms. (steps per millisecond=1250 ) properties (out of 105) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 8 ms. (steps per millisecond=1250 ) properties (out of 104) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 8 ms. (steps per millisecond=1250 ) properties (out of 103) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 8 ms. (steps per millisecond=1250 ) properties (out of 102) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 9 ms. (steps per millisecond=1111 ) properties (out of 101) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 8 ms. (steps per millisecond=1250 ) properties (out of 100) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 8 ms. (steps per millisecond=1250 ) properties (out of 99) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 8 ms. (steps per millisecond=1250 ) properties (out of 98) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 8 ms. (steps per millisecond=1250 ) properties (out of 97) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 10 ms. (steps per millisecond=1000 ) properties (out of 96) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 8 ms. (steps per millisecond=1250 ) properties (out of 95) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 9 ms. (steps per millisecond=1111 ) properties (out of 94) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 8 ms. (steps per millisecond=1250 ) properties (out of 93) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 8 ms. (steps per millisecond=1250 ) properties (out of 92) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 8 ms. (steps per millisecond=1250 ) properties (out of 91) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 8 ms. (steps per millisecond=1250 ) properties (out of 90) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 8 ms. (steps per millisecond=1250 ) properties (out of 89) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 8 ms. (steps per millisecond=1250 ) properties (out of 88) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 8 ms. (steps per millisecond=1250 ) properties (out of 87) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 8 ms. (steps per millisecond=1250 ) properties (out of 86) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 8 ms. (steps per millisecond=1250 ) properties (out of 85) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 9 ms. (steps per millisecond=1111 ) properties (out of 84) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 8 ms. (steps per millisecond=1250 ) properties (out of 83) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 8 ms. (steps per millisecond=1250 ) properties (out of 82) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 8 ms. (steps per millisecond=1250 ) properties (out of 81) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 8 ms. (steps per millisecond=1250 ) properties (out of 80) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 8 ms. (steps per millisecond=1250 ) properties (out of 79) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 9 ms. (steps per millisecond=1111 ) properties (out of 78) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 8 ms. (steps per millisecond=1250 ) properties (out of 77) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 9 ms. (steps per millisecond=1111 ) properties (out of 76) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 9 ms. (steps per millisecond=1111 ) properties (out of 75) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 8 ms. (steps per millisecond=1250 ) properties (out of 74) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 8 ms. (steps per millisecond=1250 ) properties (out of 73) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 8 ms. (steps per millisecond=1250 ) properties (out of 72) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 8 ms. (steps per millisecond=1250 ) properties (out of 71) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 8 ms. (steps per millisecond=1250 ) properties (out of 70) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 9 ms. (steps per millisecond=1111 ) properties (out of 69) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 8 ms. (steps per millisecond=1250 ) properties (out of 68) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 9 ms. (steps per millisecond=1111 ) properties (out of 67) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 8 ms. (steps per millisecond=1250 ) properties (out of 66) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 9 ms. (steps per millisecond=1111 ) properties (out of 65) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 8 ms. (steps per millisecond=1250 ) properties (out of 64) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 8 ms. (steps per millisecond=1250 ) properties (out of 63) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 8 ms. (steps per millisecond=1250 ) properties (out of 62) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 8 ms. (steps per millisecond=1250 ) properties (out of 61) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 9 ms. (steps per millisecond=1111 ) properties (out of 60) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 8 ms. (steps per millisecond=1250 ) properties (out of 59) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 9 ms. (steps per millisecond=1111 ) properties (out of 58) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 8 ms. (steps per millisecond=1250 ) properties (out of 57) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 9 ms. (steps per millisecond=1111 ) properties (out of 56) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 8 ms. (steps per millisecond=1250 ) properties (out of 55) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 8 ms. (steps per millisecond=1250 ) properties (out of 54) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 8 ms. (steps per millisecond=1250 ) properties (out of 53) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 8 ms. (steps per millisecond=1250 ) properties (out of 52) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 9 ms. (steps per millisecond=1111 ) properties (out of 51) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 8 ms. (steps per millisecond=1250 ) properties (out of 50) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 8 ms. (steps per millisecond=1250 ) properties (out of 49) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 8 ms. (steps per millisecond=1250 ) properties (out of 48) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 8 ms. (steps per millisecond=1250 ) properties (out of 47) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 9 ms. (steps per millisecond=1111 ) properties (out of 46) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 8 ms. (steps per millisecond=1250 ) properties (out of 45) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 8 ms. (steps per millisecond=1250 ) properties (out of 44) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 8 ms. (steps per millisecond=1250 ) properties (out of 43) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 9 ms. (steps per millisecond=1111 ) properties (out of 42) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 8 ms. (steps per millisecond=1250 ) properties (out of 41) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 9 ms. (steps per millisecond=1111 ) properties (out of 40) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 8 ms. (steps per millisecond=1250 ) properties (out of 39) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 9 ms. (steps per millisecond=1111 ) properties (out of 38) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 8 ms. (steps per millisecond=1250 ) properties (out of 37) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 9 ms. (steps per millisecond=1111 ) properties (out of 36) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 8 ms. (steps per millisecond=1250 ) properties (out of 35) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 8 ms. (steps per millisecond=1250 ) properties (out of 34) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 8 ms. (steps per millisecond=1250 ) properties (out of 33) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 8 ms. (steps per millisecond=1250 ) properties (out of 32) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 9 ms. (steps per millisecond=1111 ) properties (out of 31) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 11 ms. (steps per millisecond=909 ) properties (out of 30) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 8 ms. (steps per millisecond=1250 ) properties (out of 29) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 8 ms. (steps per millisecond=1250 ) properties (out of 28) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 9 ms. (steps per millisecond=1111 ) properties (out of 27) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 8 ms. (steps per millisecond=1250 ) properties (out of 26) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 8 ms. (steps per millisecond=1250 ) properties (out of 25) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 9 ms. (steps per millisecond=1111 ) properties (out of 24) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 8 ms. (steps per millisecond=1250 ) properties (out of 23) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 8 ms. (steps per millisecond=1250 ) properties (out of 22) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 8 ms. (steps per millisecond=1250 ) properties (out of 21) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 8 ms. (steps per millisecond=1250 ) properties (out of 20) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 8 ms. (steps per millisecond=1250 ) properties (out of 19) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 9 ms. (steps per millisecond=1111 ) properties (out of 18) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 8 ms. (steps per millisecond=1250 ) properties (out of 17) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 8 ms. (steps per millisecond=1250 ) properties (out of 16) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 8 ms. (steps per millisecond=1250 ) properties (out of 15) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 8 ms. (steps per millisecond=1250 ) properties (out of 14) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 8 ms. (steps per millisecond=1250 ) properties (out of 13) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 8 ms. (steps per millisecond=1250 ) properties (out of 12) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 8 ms. (steps per millisecond=1250 ) properties (out of 11) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 7 ms. (steps per millisecond=1428 ) properties (out of 10) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 7 ms. (steps per millisecond=1428 ) properties (out of 9) seen :1
Incomplete Best-First random walk after 10000 steps, including 2 resets, run finished after 7 ms. (steps per millisecond=1428 ) properties (out of 8) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 7 ms. (steps per millisecond=1428 ) properties (out of 7) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 7 ms. (steps per millisecond=1428 ) properties (out of 6) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 7 ms. (steps per millisecond=1428 ) properties (out of 5) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 7 ms. (steps per millisecond=1428 ) properties (out of 4) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 6 ms. (steps per millisecond=1666 ) properties (out of 3) seen :1
Incomplete Best-First random walk after 10001 steps, including 3 resets, run finished after 6 ms. (steps per millisecond=1666 ) properties (out of 2) seen :0
Incomplete Best-First random walk after 10001 steps, including 3 resets, run finished after 6 ms. (steps per millisecond=1666 ) properties (out of 2) seen :0
Running SMT prover for 2 properties.
[2023-03-21 18:58:12] [INFO ] Flow matrix only has 930 transitions (discarded 98 similar events)
// Phase 1: matrix 930 rows 531 cols
[2023-03-21 18:58:12] [INFO ] Computed 20 place invariants in 16 ms
[2023-03-21 18:58:12] [INFO ] [Real]Absence check using 20 positive place invariants in 7 ms returned sat
[2023-03-21 18:58:12] [INFO ] After 237ms SMT Verify possible using state equation in real domain returned unsat :0 sat :1 real:1
[2023-03-21 18:58:12] [INFO ] State equation strengthened by 213 read => feed constraints.
[2023-03-21 18:58:12] [INFO ] After 98ms SMT Verify possible using 213 Read/Feed constraints in real domain returned unsat :0 sat :0 real:2
[2023-03-21 18:58:12] [INFO ] After 459ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:2
[2023-03-21 18:58:12] [INFO ] [Nat]Absence check using 20 positive place invariants in 6 ms returned sat
[2023-03-21 18:58:13] [INFO ] After 248ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :2
[2023-03-21 18:58:13] [INFO ] After 120ms SMT Verify possible using 213 Read/Feed constraints in natural domain returned unsat :0 sat :2
[2023-03-21 18:58:13] [INFO ] After 223ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :2
Attempting to minimize the solution found.
Minimization took 63 ms.
[2023-03-21 18:58:13] [INFO ] After 629ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :2
Parikh walk visited 1 properties in 64 ms.
Support contains 2 out of 531 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 531/531 places, 1028/1028 transitions.
Discarding 71 places :
Symmetric choice reduction at 0 with 71 rule applications. Total rules 71 place count 460 transition count 957
Iterating global reduction 0 with 71 rules applied. Total rules applied 142 place count 460 transition count 957
Ensure Unique test removed 70 transitions
Reduce isomorphic transitions removed 70 transitions.
Iterating post reduction 0 with 70 rules applied. Total rules applied 212 place count 460 transition count 887
Free-agglomeration rule applied 365 times with reduction of 104 identical transitions.
Iterating global reduction 1 with 365 rules applied. Total rules applied 577 place count 460 transition count 418
Reduce places removed 365 places and 0 transitions.
Drop transitions removed 289 transitions
Reduce isomorphic transitions removed 289 transitions.
Iterating post reduction 1 with 654 rules applied. Total rules applied 1231 place count 95 transition count 129
Applied a total of 1231 rules in 88 ms. Remains 95 /531 variables (removed 436) and now considering 129/1028 (removed 899) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 88 ms. Remains : 95/531 places, 129/1028 transitions.
Finished random walk after 131 steps, including 0 resets, run visited all 1 properties in 2 ms. (steps per millisecond=65 )
Able to resolve query QuasiLiveness after proving 705 properties.
FORMULA QuasiLiveness TRUE TECHNIQUES RANDOM_WALK PROBABILISTIC_WALK PARIKH_WALK BESTFIRST_WALK TOPOLOGICAL INITIAL_STATE
Total runtime 438529 ms.
ITS solved all properties within timeout

BK_STOP 1679425094770

--------------------
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:
++ perl -pe 's/.*\.//g'
++ sed s/.jar//
++ 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 QuasiLiveness -timeout 180 -rebuildPNML

Sequence of Actions to be Executed by the VM

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

set -x
# this is for BenchKit: configuration of major elements for the test
export BK_INPUT="FlexibleBarrier-PT-18b"
export BK_EXAMINATION="QuasiLiveness"
export BK_TOOL="smartxred"
export BK_RESULT_DIR="/tmp/BK_RESULTS/OUTPUTS"
export BK_TIME_CONFINEMENT="1800"
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 smartxred"
echo " Input is FlexibleBarrier-PT-18b, examination is QuasiLiveness"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r185-tall-167838872000352"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/FlexibleBarrier-PT-18b.tgz
mv FlexibleBarrier-PT-18b execution
cd execution
if [ "QuasiLiveness" = "ReachabilityDeadlock" ] || [ "QuasiLiveness" = "UpperBounds" ] || [ "QuasiLiveness" = "QuasiLiveness" ] || [ "QuasiLiveness" = "StableMarking" ] || [ "QuasiLiveness" = "Liveness" ] || [ "QuasiLiveness" = "OneSafe" ] || [ "QuasiLiveness" = "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 [ "QuasiLiveness" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "QuasiLiveness" != "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 "QuasiLiveness.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property QuasiLiveness.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "QuasiLiveness.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 '' QuasiLiveness.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "QuasiLiveness" = "ReachabilityDeadlock" ] || [ "QuasiLiveness" = "QuasiLiveness" ] || [ "QuasiLiveness" = "StableMarking" ] || [ "QuasiLiveness" = "Liveness" ] || [ "QuasiLiveness" = "OneSafe" ] ; then
echo "FORMULA_NAME QuasiLiveness"
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 ;