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.r235-tall-167856422400879.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 smartxred
Input is MultiCrashLeafsetExtension-PT-S24C11, examination is ReachabilityFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r235-tall-167856422400879
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 19M
-rw-r--r-- 1 mcc users 14K Feb 26 02:55 CTLCardinality.txt
-rw-r--r-- 1 mcc users 85K Feb 26 02:55 CTLCardinality.xml
-rw-r--r-- 1 mcc users 17K Feb 26 02:50 CTLFireability.txt
-rw-r--r-- 1 mcc users 93K Feb 26 02:50 CTLFireability.xml
-rw-r--r-- 1 mcc users 7.1K Feb 25 16:25 LTLCardinality.txt
-rw-r--r-- 1 mcc users 30K Feb 25 16:25 LTLCardinality.xml
-rw-r--r-- 1 mcc users 4.4K Feb 25 16:25 LTLFireability.txt
-rw-r--r-- 1 mcc users 19K Feb 25 16:25 LTLFireability.xml
-rw-r--r-- 1 mcc users 17K Feb 26 03:06 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 92K Feb 26 03:06 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 21K Feb 26 02:59 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 94K Feb 26 02:59 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 2.5K Feb 25 16:25 UpperBounds.txt
-rw-r--r-- 1 mcc users 4.5K Feb 25 16:25 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 5 18:22 equiv_col
-rw-r--r-- 1 mcc users 7 Mar 5 18:22 instance
-rw-r--r-- 1 mcc users 6 Mar 5 18:22 iscolored
-rw-r--r-- 1 mcc users 19M 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

here is the order used to build the result vector(from text file)
FORMULA_NAME MultiCrashLeafsetExtension-PT-S24C11-ReachabilityFireability-00
FORMULA_NAME MultiCrashLeafsetExtension-PT-S24C11-ReachabilityFireability-01
FORMULA_NAME MultiCrashLeafsetExtension-PT-S24C11-ReachabilityFireability-02
FORMULA_NAME MultiCrashLeafsetExtension-PT-S24C11-ReachabilityFireability-03
FORMULA_NAME MultiCrashLeafsetExtension-PT-S24C11-ReachabilityFireability-04
FORMULA_NAME MultiCrashLeafsetExtension-PT-S24C11-ReachabilityFireability-05
FORMULA_NAME MultiCrashLeafsetExtension-PT-S24C11-ReachabilityFireability-06
FORMULA_NAME MultiCrashLeafsetExtension-PT-S24C11-ReachabilityFireability-07
FORMULA_NAME MultiCrashLeafsetExtension-PT-S24C11-ReachabilityFireability-08
FORMULA_NAME MultiCrashLeafsetExtension-PT-S24C11-ReachabilityFireability-09
FORMULA_NAME MultiCrashLeafsetExtension-PT-S24C11-ReachabilityFireability-10
FORMULA_NAME MultiCrashLeafsetExtension-PT-S24C11-ReachabilityFireability-11
FORMULA_NAME MultiCrashLeafsetExtension-PT-S24C11-ReachabilityFireability-12
FORMULA_NAME MultiCrashLeafsetExtension-PT-S24C11-ReachabilityFireability-13
FORMULA_NAME MultiCrashLeafsetExtension-PT-S24C11-ReachabilityFireability-14
FORMULA_NAME MultiCrashLeafsetExtension-PT-S24C11-ReachabilityFireability-15

=== Now, execution of the tool begins

BK_START 1678718403994

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=ReachabilityFireability
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=MultiCrashLeafsetExtension-PT-S24C11
Applying reductions before tool smart
Invoking reducer
Running Version 202303021504
[2023-03-13 14:40:05] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, ReachabilityFireability, -timeout, 360, -rebuildPNML]
[2023-03-13 14:40:05] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2023-03-13 14:40:06] [INFO ] Load time of PNML (sax parser for PT used): 653 ms
[2023-03-13 14:40:06] [INFO ] Transformed 19254 places.
[2023-03-13 14:40:06] [INFO ] Transformed 27973 transitions.
[2023-03-13 14:40:06] [INFO ] Parsed PT model containing 19254 places and 27973 transitions and 103022 arcs in 863 ms.
Parsed 16 properties from file /home/mcc/execution/ReachabilityFireability.xml in 20 ms.
Working with output stream class java.io.PrintStream
Incomplete random walk after 10000 steps, including 88 resets, run finished after 708 ms. (steps per millisecond=14 ) properties (out of 16) seen :2
FORMULA MultiCrashLeafsetExtension-PT-S24C11-ReachabilityFireability-12 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA MultiCrashLeafsetExtension-PT-S24C11-ReachabilityFireability-05 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
Incomplete Best-First random walk after 10001 steps, including 18 resets, run finished after 175 ms. (steps per millisecond=57 ) properties (out of 14) seen :0
Incomplete Best-First random walk after 10001 steps, including 18 resets, run finished after 166 ms. (steps per millisecond=60 ) properties (out of 14) seen :0
Incomplete Best-First random walk after 10001 steps, including 18 resets, run finished after 175 ms. (steps per millisecond=57 ) properties (out of 14) seen :0
Incomplete Best-First random walk after 10001 steps, including 18 resets, run finished after 115 ms. (steps per millisecond=86 ) properties (out of 14) seen :0
Incomplete Best-First random walk after 10001 steps, including 18 resets, run finished after 127 ms. (steps per millisecond=78 ) properties (out of 14) seen :0
Incomplete Best-First random walk after 10001 steps, including 18 resets, run finished after 111 ms. (steps per millisecond=90 ) properties (out of 14) seen :0
Incomplete Best-First random walk after 10001 steps, including 18 resets, run finished after 114 ms. (steps per millisecond=87 ) properties (out of 14) seen :0
Incomplete Best-First random walk after 10001 steps, including 18 resets, run finished after 117 ms. (steps per millisecond=85 ) properties (out of 14) seen :0
Incomplete Best-First random walk after 10001 steps, including 18 resets, run finished after 116 ms. (steps per millisecond=86 ) properties (out of 14) seen :0
Incomplete Best-First random walk after 10001 steps, including 18 resets, run finished after 116 ms. (steps per millisecond=86 ) properties (out of 14) seen :0
Incomplete Best-First random walk after 10001 steps, including 18 resets, run finished after 105 ms. (steps per millisecond=95 ) properties (out of 14) seen :0
Incomplete Best-First random walk after 10001 steps, including 18 resets, run finished after 119 ms. (steps per millisecond=84 ) properties (out of 14) seen :0
Incomplete Best-First random walk after 10001 steps, including 18 resets, run finished after 111 ms. (steps per millisecond=90 ) properties (out of 14) seen :0
Incomplete Best-First random walk after 10000 steps, including 18 resets, run finished after 103 ms. (steps per millisecond=97 ) properties (out of 14) seen :0
Running SMT prover for 14 properties.
[2023-03-13 14:40:09] [INFO ] Flow matrix only has 27373 transitions (discarded 600 similar events)
// Phase 1: matrix 27373 rows 19254 cols
[2023-03-13 14:40:11] [INFO ] Computed 1299 place invariants in 2596 ms
[2023-03-13 14:40:17] [INFO ] [Real]Absence check using 76 positive place invariants in 91 ms returned sat
[2023-03-13 14:40:18] [INFO ] [Real]Absence check using 76 positive and 1223 generalized place invariants in 1137 ms returned sat
[2023-03-13 14:40:19] [INFO ] After 7347ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:14
[2023-03-13 14:40:24] [INFO ] [Nat]Absence check using 76 positive place invariants in 71 ms returned sat
[2023-03-13 14:40:25] [INFO ] [Nat]Absence check using 76 positive and 1223 generalized place invariants in 1267 ms returned sat
[2023-03-13 14:40:44] [INFO ] After 16234ms SMT Verify possible using state equation in natural domain returned unsat :7 sat :6
[2023-03-13 14:40:44] [INFO ] State equation strengthened by 8602 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: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.Application.startNoEx(Application.java:902)
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)
[2023-03-13 14:40:44] [WARNING] SMT solver failed with error :SMT solver raised an error when submitting script.... while checking expressions.
[2023-03-13 14:40:44] [INFO ] After 25156ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :0 real:14
FORMULA MultiCrashLeafsetExtension-PT-S24C11-ReachabilityFireability-14 TRUE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA MultiCrashLeafsetExtension-PT-S24C11-ReachabilityFireability-13 FALSE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA MultiCrashLeafsetExtension-PT-S24C11-ReachabilityFireability-09 TRUE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA MultiCrashLeafsetExtension-PT-S24C11-ReachabilityFireability-08 FALSE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA MultiCrashLeafsetExtension-PT-S24C11-ReachabilityFireability-07 TRUE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA MultiCrashLeafsetExtension-PT-S24C11-ReachabilityFireability-04 TRUE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA MultiCrashLeafsetExtension-PT-S24C11-ReachabilityFireability-02 TRUE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
Fused 14 Parikh solutions to 1 different solutions.
Parikh walk visited 0 properties in 1 ms.
Support contains 170 out of 19254 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 19254/19254 places, 27973/27973 transitions.
Graph (complete) has 60623 edges and 19254 vertex of which 19204 are kept as prefixes of interest. Removing 50 places using SCC suffix rule.61 ms
Discarding 50 places :
Also discarding 0 output transitions
Drop transitions removed 6256 transitions
Trivial Post-agglo rules discarded 6256 transitions
Performed 6256 trivial Post agglomeration. Transition count delta: 6256
Iterating post reduction 0 with 6256 rules applied. Total rules applied 6257 place count 19204 transition count 21717
Reduce places removed 6256 places and 0 transitions.
Performed 324 Post agglomeration using F-continuation condition.Transition count delta: 324
Iterating post reduction 1 with 6580 rules applied. Total rules applied 12837 place count 12948 transition count 21393
Reduce places removed 324 places and 0 transitions.
Iterating post reduction 2 with 324 rules applied. Total rules applied 13161 place count 12624 transition count 21393
Performed 522 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 522 Pre rules applied. Total rules applied 13161 place count 12624 transition count 20871
Deduced a syphon composed of 522 places in 31 ms
Reduce places removed 522 places and 0 transitions.
Iterating global reduction 3 with 1044 rules applied. Total rules applied 14205 place count 12102 transition count 20871
Discarding 6003 places :
Symmetric choice reduction at 3 with 6003 rule applications. Total rules 20208 place count 6099 transition count 14868
Iterating global reduction 3 with 6003 rules applied. Total rules applied 26211 place count 6099 transition count 14868
Performed 3 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 3 Pre rules applied. Total rules applied 26211 place count 6099 transition count 14865
Deduced a syphon composed of 3 places in 12 ms
Reduce places removed 3 places and 0 transitions.
Iterating global reduction 3 with 6 rules applied. Total rules applied 26217 place count 6096 transition count 14865
Discarding 477 places :
Symmetric choice reduction at 3 with 477 rule applications. Total rules 26694 place count 5619 transition count 9618
Iterating global reduction 3 with 477 rules applied. Total rules applied 27171 place count 5619 transition count 9618
Performed 20 Post agglomeration using F-continuation condition.Transition count delta: 20
Deduced a syphon composed of 20 places in 7 ms
Reduce places removed 20 places and 0 transitions.
Iterating global reduction 3 with 40 rules applied. Total rules applied 27211 place count 5599 transition count 9598
Free-agglomeration rule (complex) applied 333 times.
Iterating global reduction 3 with 333 rules applied. Total rules applied 27544 place count 5599 transition count 13835
Reduce places removed 333 places and 0 transitions.
Iterating post reduction 3 with 333 rules applied. Total rules applied 27877 place count 5266 transition count 13835
Partial Free-agglomeration rule applied 448 times.
Drop transitions removed 448 transitions
Iterating global reduction 4 with 448 rules applied. Total rules applied 28325 place count 5266 transition count 13835
Applied a total of 28325 rules in 6863 ms. Remains 5266 /19254 variables (removed 13988) and now considering 13835/27973 (removed 14138) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 6868 ms. Remains : 5266/19254 places, 13835/27973 transitions.
Incomplete random walk after 10000 steps, including 142 resets, run finished after 727 ms. (steps per millisecond=13 ) properties (out of 7) seen :0
Incomplete Best-First random walk after 10001 steps, including 20 resets, run finished after 132 ms. (steps per millisecond=75 ) properties (out of 7) seen :0
Incomplete Best-First random walk after 10001 steps, including 20 resets, run finished after 153 ms. (steps per millisecond=65 ) properties (out of 7) seen :0
Incomplete Best-First random walk after 10001 steps, including 20 resets, run finished after 110 ms. (steps per millisecond=90 ) properties (out of 7) seen :0
Incomplete Best-First random walk after 10000 steps, including 19 resets, run finished after 114 ms. (steps per millisecond=87 ) properties (out of 7) seen :0
Incomplete Best-First random walk after 10001 steps, including 20 resets, run finished after 127 ms. (steps per millisecond=78 ) properties (out of 7) seen :0
Incomplete Best-First random walk after 10001 steps, including 20 resets, run finished after 113 ms. (steps per millisecond=88 ) properties (out of 7) seen :0
Incomplete Best-First random walk after 10001 steps, including 20 resets, run finished after 109 ms. (steps per millisecond=91 ) properties (out of 7) seen :0
Interrupted probabilistic random walk after 19293 steps, run timeout after 3001 ms. (steps per millisecond=6 ) properties seen :{3=1}
Probabilistic random walk after 19293 steps, saw 9113 distinct states, run finished after 3002 ms. (steps per millisecond=6 ) properties seen :1
FORMULA MultiCrashLeafsetExtension-PT-S24C11-ReachabilityFireability-06 TRUE TECHNIQUES TOPOLOGICAL PROBABILISTIC_WALK
Running SMT prover for 6 properties.
[2023-03-13 14:40:55] [INFO ] Flow matrix only has 12995 transitions (discarded 840 similar events)
// Phase 1: matrix 12995 rows 5266 cols
[2023-03-13 14:40:56] [INFO ] Computed 1249 place invariants in 373 ms
[2023-03-13 14:40:57] [INFO ] [Real]Absence check using 49 positive place invariants in 93 ms returned sat
[2023-03-13 14:40:57] [INFO ] [Real]Absence check using 49 positive and 1200 generalized place invariants in 338 ms returned sat
[2023-03-13 14:40:57] [INFO ] After 1370ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:6
[2023-03-13 14:40:58] [INFO ] [Nat]Absence check using 49 positive place invariants in 87 ms returned sat
[2023-03-13 14:40:59] [INFO ] [Nat]Absence check using 49 positive and 1200 generalized place invariants in 340 ms returned sat
[2023-03-13 14:41:22] [INFO ] After 23309ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :5
[2023-03-13 14:41:22] [INFO ] State equation strengthened by 8402 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: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.Application.startNoEx(Application.java:902)
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)
[2023-03-13 14:41:22] [WARNING] SMT solver failed with error :SMT solver raised an error when submitting script.... while checking expressions.
[2023-03-13 14:41:22] [INFO ] After 25202ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :0 real:6
Fused 6 Parikh solutions to 4 different solutions.
Parikh walk visited 0 properties in 31 ms.
Support contains 168 out of 5266 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 5266/5266 places, 13835/13835 transitions.
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 0 with 1 Pre rules applied. Total rules applied 0 place count 5266 transition count 13834
Deduced a syphon composed of 1 places in 9 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 0 with 2 rules applied. Total rules applied 2 place count 5265 transition count 13834
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 3 place count 5264 transition count 13833
Iterating global reduction 0 with 1 rules applied. Total rules applied 4 place count 5264 transition count 13833
Partial Free-agglomeration rule applied 1 times.
Drop transitions removed 1 transitions
Iterating global reduction 0 with 1 rules applied. Total rules applied 5 place count 5264 transition count 13833
Applied a total of 5 rules in 1977 ms. Remains 5264 /5266 variables (removed 2) and now considering 13833/13835 (removed 2) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 1977 ms. Remains : 5264/5266 places, 13833/13835 transitions.
Incomplete random walk after 10000 steps, including 143 resets, run finished after 725 ms. (steps per millisecond=13 ) properties (out of 6) seen :0
Incomplete Best-First random walk after 10001 steps, including 20 resets, run finished after 131 ms. (steps per millisecond=76 ) properties (out of 6) seen :0
Incomplete Best-First random walk after 10000 steps, including 20 resets, run finished after 128 ms. (steps per millisecond=78 ) properties (out of 6) seen :0
Incomplete Best-First random walk after 10001 steps, including 20 resets, run finished after 111 ms. (steps per millisecond=90 ) properties (out of 6) seen :0
Incomplete Best-First random walk after 10001 steps, including 20 resets, run finished after 124 ms. (steps per millisecond=80 ) properties (out of 6) seen :0
Incomplete Best-First random walk after 10001 steps, including 20 resets, run finished after 111 ms. (steps per millisecond=90 ) properties (out of 6) seen :0
Incomplete Best-First random walk after 10001 steps, including 20 resets, run finished after 113 ms. (steps per millisecond=88 ) properties (out of 6) seen :0
Interrupted probabilistic random walk after 19412 steps, run timeout after 3001 ms. (steps per millisecond=6 ) properties seen :{}
Probabilistic random walk after 19412 steps, saw 9165 distinct states, run finished after 3002 ms. (steps per millisecond=6 ) properties seen :0
Running SMT prover for 6 properties.
[2023-03-13 14:41:29] [INFO ] Flow matrix only has 12993 transitions (discarded 840 similar events)
// Phase 1: matrix 12993 rows 5264 cols
[2023-03-13 14:41:29] [INFO ] Computed 1249 place invariants in 356 ms
[2023-03-13 14:41:30] [INFO ] [Real]Absence check using 49 positive place invariants in 91 ms returned sat
[2023-03-13 14:41:31] [INFO ] [Real]Absence check using 49 positive and 1200 generalized place invariants in 345 ms returned sat
[2023-03-13 14:41:31] [INFO ] After 1431ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:6
[2023-03-13 14:41:32] [INFO ] [Nat]Absence check using 49 positive place invariants in 91 ms returned sat
[2023-03-13 14:41:32] [INFO ] [Nat]Absence check using 49 positive and 1200 generalized place invariants in 355 ms returned sat
[2023-03-13 14:41:56] [INFO ] After 23198ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :4
[2023-03-13 14:41:56] [INFO ] State equation strengthened by 8402 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: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.Application.startNoEx(Application.java:902)
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)
[2023-03-13 14:41:56] [WARNING] SMT solver failed with error :SMT solver raised an error when submitting script.... while checking expressions.
[2023-03-13 14:41:56] [INFO ] After 25134ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :0 real:6
Fused 6 Parikh solutions to 3 different solutions.
Parikh walk visited 0 properties in 10 ms.
Support contains 168 out of 5264 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 5264/5264 places, 13833/13833 transitions.
Applied a total of 0 rules in 828 ms. Remains 5264 /5264 variables (removed 0) and now considering 13833/13833 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 828 ms. Remains : 5264/5264 places, 13833/13833 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 5264/5264 places, 13833/13833 transitions.
Applied a total of 0 rules in 869 ms. Remains 5264 /5264 variables (removed 0) and now considering 13833/13833 (removed 0) transitions.
[2023-03-13 14:41:58] [INFO ] Flow matrix only has 12993 transitions (discarded 840 similar events)
[2023-03-13 14:41:58] [INFO ] Invariant cache hit.
[2023-03-13 14:42:02] [INFO ] Implicit Places using invariants in 4506 ms returned []
Implicit Place search using SMT only with invariants took 4512 ms to find 0 implicit places.
[2023-03-13 14:42:02] [INFO ] Flow matrix only has 12993 transitions (discarded 840 similar events)
[2023-03-13 14:42:02] [INFO ] Invariant cache hit.
[2023-03-13 14:42:11] [INFO ] Dead Transitions using invariants and state equation in 8417 ms found 0 transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 13804 ms. Remains : 5264/5264 places, 13833/13833 transitions.
Graph (trivial) has 3409 edges and 5264 vertex of which 20 / 5264 are part of one of the 1 SCC in 17 ms
Free SCC test removed 19 places
Drop transitions removed 450 transitions
Ensure Unique test removed 868 transitions
Reduce isomorphic transitions removed 1318 transitions.
Graph (complete) has 49751 edges and 5245 vertex of which 5230 are kept as prefixes of interest. Removing 15 places using SCC suffix rule.6 ms
Discarding 15 places :
Also discarding 0 output transitions
Ensure Unique test removed 377 places
Drop transitions removed 140 transitions
Trivial Post-agglo rules discarded 140 transitions
Performed 140 trivial Post agglomeration. Transition count delta: 140
Iterating post reduction 0 with 517 rules applied. Total rules applied 519 place count 4853 transition count 12375
Reduce places removed 140 places and 0 transitions.
Ensure Unique test removed 112 transitions
Reduce isomorphic transitions removed 112 transitions.
Drop transitions removed 108 transitions
Trivial Post-agglo rules discarded 108 transitions
Performed 108 trivial Post agglomeration. Transition count delta: 108
Iterating post reduction 1 with 360 rules applied. Total rules applied 879 place count 4713 transition count 12155
Reduce places removed 108 places and 0 transitions.
Drop transitions removed 21 transitions
Ensure Unique test removed 72 transitions
Reduce isomorphic transitions removed 93 transitions.
Drop transitions removed 70 transitions
Trivial Post-agglo rules discarded 70 transitions
Performed 70 trivial Post agglomeration. Transition count delta: 70
Iterating post reduction 2 with 271 rules applied. Total rules applied 1150 place count 4605 transition count 11992
Ensure Unique test removed 21 places
Reduce places removed 91 places and 0 transitions.
Ensure Unique test removed 55 transitions
Reduce isomorphic transitions removed 55 transitions.
Drop transitions removed 52 transitions
Trivial Post-agglo rules discarded 52 transitions
Performed 52 trivial Post agglomeration. Transition count delta: 52
Iterating post reduction 3 with 198 rules applied. Total rules applied 1348 place count 4514 transition count 11885
Reduce places removed 52 places and 0 transitions.
Drop transitions removed 13 transitions
Ensure Unique test removed 39 transitions
Reduce isomorphic transitions removed 52 transitions.
Drop transitions removed 37 transitions
Trivial Post-agglo rules discarded 37 transitions
Performed 37 trivial Post agglomeration. Transition count delta: 37
Iterating post reduction 4 with 141 rules applied. Total rules applied 1489 place count 4462 transition count 11796
Ensure Unique test removed 13 places
Reduce places removed 50 places and 0 transitions.
Ensure Unique test removed 23 transitions
Reduce isomorphic transitions removed 23 transitions.
Drop transitions removed 19 transitions
Trivial Post-agglo rules discarded 19 transitions
Performed 19 trivial Post agglomeration. Transition count delta: 19
Iterating post reduction 5 with 92 rules applied. Total rules applied 1581 place count 4412 transition count 11754
Reduce places removed 19 places and 0 transitions.
Drop transitions removed 8 transitions
Ensure Unique test removed 11 transitions
Reduce isomorphic transitions removed 19 transitions.
Drop transitions removed 11 transitions
Trivial Post-agglo rules discarded 11 transitions
Performed 11 trivial Post agglomeration. Transition count delta: 11
Iterating post reduction 6 with 49 rules applied. Total rules applied 1630 place count 4393 transition count 11724
Ensure Unique test removed 8 places
Reduce places removed 19 places and 0 transitions.
Ensure Unique test removed 11 transitions
Reduce isomorphic transitions removed 11 transitions.
Drop transitions removed 9 transitions
Trivial Post-agglo rules discarded 9 transitions
Performed 9 trivial Post agglomeration. Transition count delta: 9
Iterating post reduction 7 with 39 rules applied. Total rules applied 1669 place count 4374 transition count 11704
Reduce places removed 9 places and 0 transitions.
Drop transitions removed 4 transitions
Ensure Unique test removed 5 transitions
Reduce isomorphic transitions removed 9 transitions.
Drop transitions removed 5 transitions
Trivial Post-agglo rules discarded 5 transitions
Performed 5 trivial Post agglomeration. Transition count delta: 5
Iterating post reduction 8 with 23 rules applied. Total rules applied 1692 place count 4365 transition count 11690
Ensure Unique test removed 4 places
Reduce places removed 9 places and 0 transitions.
Ensure Unique test removed 5 transitions
Reduce isomorphic transitions removed 5 transitions.
Drop transitions removed 3 transitions
Trivial Post-agglo rules discarded 3 transitions
Performed 3 trivial Post agglomeration. Transition count delta: 3
Iterating post reduction 9 with 17 rules applied. Total rules applied 1709 place count 4356 transition count 11682
Reduce places removed 3 places and 0 transitions.
Drop transitions removed 2 transitions
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 3 transitions.
Drop transitions removed 1 transitions
Trivial Post-agglo rules discarded 1 transitions
Performed 1 trivial Post agglomeration. Transition count delta: 1
Iterating post reduction 10 with 7 rules applied. Total rules applied 1716 place count 4353 transition count 11678
Ensure Unique test removed 2 places
Reduce places removed 3 places and 0 transitions.
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Performed 24 Post agglomeration using F-continuation condition.Transition count delta: 24
Iterating post reduction 11 with 28 rules applied. Total rules applied 1744 place count 4350 transition count 11653
Reduce places removed 24 places and 0 transitions.
Ensure Unique test removed 7 transitions
Reduce isomorphic transitions removed 7 transitions.
Iterating post reduction 12 with 31 rules applied. Total rules applied 1775 place count 4326 transition count 11646
Performed 546 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 13 with 546 Pre rules applied. Total rules applied 1775 place count 4326 transition count 11100
Deduced a syphon composed of 546 places in 4 ms
Ensure Unique test removed 500 places
Reduce places removed 1046 places and 0 transitions.
Iterating global reduction 13 with 1592 rules applied. Total rules applied 3367 place count 3280 transition count 11100
Discarding 500 places :
Symmetric choice reduction at 13 with 500 rule applications. Total rules 3867 place count 2780 transition count 10600
Iterating global reduction 13 with 500 rules applied. Total rules applied 4367 place count 2780 transition count 10600
Discarding 85 places :
Symmetric choice reduction at 13 with 85 rule applications. Total rules 4452 place count 2695 transition count 9665
Iterating global reduction 13 with 85 rules applied. Total rules applied 4537 place count 2695 transition count 9665
Ensure Unique test removed 85 transitions
Reduce isomorphic transitions removed 85 transitions.
Iterating post reduction 13 with 85 rules applied. Total rules applied 4622 place count 2695 transition count 9580
Performed 1538 Post agglomeration using F-continuation condition.Transition count delta: 1538
Deduced a syphon composed of 1538 places in 2 ms
Reduce places removed 1538 places and 0 transitions.
Iterating global reduction 14 with 3076 rules applied. Total rules applied 7698 place count 1157 transition count 8042
Drop transitions removed 1105 transitions
Ensure Unique test removed 223 transitions
Reduce isomorphic transitions removed 1328 transitions.
Iterating post reduction 14 with 1328 rules applied. Total rules applied 9026 place count 1157 transition count 6714
Renaming transitions due to excessive name length > 1024 char.
Drop transitions removed 426 transitions
Redundant transition composition rules discarded 426 transitions
Iterating global reduction 15 with 426 rules applied. Total rules applied 9452 place count 1157 transition count 6288
Ensure Unique test removed 184 places
Drop transitions removed 4 transitions
Trivial Post-agglo rules discarded 4 transitions
Performed 4 trivial Post agglomeration. Transition count delta: 4
Iterating post reduction 15 with 188 rules applied. Total rules applied 9640 place count 973 transition count 6284
Reduce places removed 4 places and 0 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Iterating post reduction 16 with 5 rules applied. Total rules applied 9645 place count 969 transition count 6283
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 17 with 1 rules applied. Total rules applied 9646 place count 968 transition count 6283
Discarding 32 places :
Symmetric choice reduction at 18 with 32 rule applications. Total rules 9678 place count 936 transition count 5931
Iterating global reduction 18 with 32 rules applied. Total rules applied 9710 place count 936 transition count 5931
Ensure Unique test removed 32 transitions
Reduce isomorphic transitions removed 32 transitions.
Iterating post reduction 18 with 32 rules applied. Total rules applied 9742 place count 936 transition count 5899
Free-agglomeration rule applied 5 times.
Iterating global reduction 19 with 5 rules applied. Total rules applied 9747 place count 936 transition count 5894
Reduce places removed 5 places and 0 transitions.
Iterating post reduction 19 with 5 rules applied. Total rules applied 9752 place count 931 transition count 5894
Free-agglomeration rule (complex) applied 9 times.
Iterating global reduction 20 with 9 rules applied. Total rules applied 9761 place count 931 transition count 5885
Reduce places removed 9 places and 0 transitions.
Iterating post reduction 20 with 9 rules applied. Total rules applied 9770 place count 922 transition count 5885
Partial Free-agglomeration rule applied 4245 times.
Drop transitions removed 4245 transitions
Iterating global reduction 21 with 4245 rules applied. Total rules applied 14015 place count 922 transition count 5885
Discarding 16 places :
Symmetric choice reduction at 21 with 16 rule applications. Total rules 14031 place count 906 transition count 5709
Iterating global reduction 21 with 16 rules applied. Total rules applied 14047 place count 906 transition count 5709
Ensure Unique test removed 16 transitions
Reduce isomorphic transitions removed 16 transitions.
Iterating post reduction 21 with 16 rules applied. Total rules applied 14063 place count 906 transition count 5693
Partial Post-agglomeration rule applied 400 times.
Drop transitions removed 400 transitions
Iterating global reduction 22 with 400 rules applied. Total rules applied 14463 place count 906 transition count 5693
Applied a total of 14463 rules in 17758 ms. Remains 906 /5264 variables (removed 4358) and now considering 5693/13833 (removed 8140) transitions.
Running SMT prover for 6 properties.
// Phase 1: matrix 5693 rows 906 cols
[2023-03-13 14:42:29] [INFO ] Computed 125 place invariants in 405 ms
[2023-03-13 14:42:29] [INFO ] [Real]Absence check using 12 positive place invariants in 15 ms returned sat
[2023-03-13 14:42:29] [INFO ] [Real]Absence check using 12 positive and 113 generalized place invariants in 22 ms returned sat
[2023-03-13 14:42:29] [INFO ] After 222ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:6
[2023-03-13 14:42:29] [INFO ] [Nat]Absence check using 12 positive place invariants in 15 ms returned sat
[2023-03-13 14:42:29] [INFO ] [Nat]Absence check using 12 positive and 113 generalized place invariants in 19 ms returned sat
[2023-03-13 14:42:32] [INFO ] After 2182ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :6
[2023-03-13 14:42:34] [INFO ] Deduced a trap composed of 220 places in 1176 ms of which 5 ms to minimize.
[2023-03-13 14:42:35] [INFO ] Deduced a trap composed of 217 places in 1194 ms of which 1 ms to minimize.
[2023-03-13 14:42:37] [INFO ] Deduced a trap composed of 216 places in 1194 ms of which 2 ms to minimize.
[2023-03-13 14:42:38] [INFO ] Deduced a trap composed of 221 places in 1158 ms of which 2 ms to minimize.
[2023-03-13 14:42:39] [INFO ] Deduced a trap composed of 222 places in 1332 ms of which 3 ms to minimize.
[2023-03-13 14:42:41] [INFO ] Deduced a trap composed of 219 places in 1355 ms of which 1 ms to minimize.
[2023-03-13 14:42:42] [INFO ] Deduced a trap composed of 221 places in 1168 ms of which 0 ms to minimize.
[2023-03-13 14:42:42] [INFO ] Trap strengthening (SAT) tested/added 8/7 trap constraints in 9551 ms
[2023-03-13 14:42:43] [INFO ] After 13225ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :6
Attempting to minimize the solution found.
Minimization took 816 ms.
[2023-03-13 14:42:43] [INFO ] After 14320ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :6
[2023-03-13 14:42:43] [INFO ] Export to MCC of 6 properties in file /home/mcc/execution/ReachabilityFireability.sr.xml took 6 ms.
[2023-03-13 14:42:44] [INFO ] Export to PNML in file /home/mcc/execution/model.sr.pnml of net with 5264 places, 13833 transitions and 86284 arcs took 73 ms.
[2023-03-13 14:42:45] [INFO ] Flatten gal took : 905 ms
Total runtime 159748 ms.
There are residual formulas that ITS could not solve within timeout
======================================================
========== this is Smart for the MCC'2018 ============
======================================================
Running MultiCrashLeafsetExtension (PT), instance S24C11
Examination ReachabilityFireability
Parser /home/mcc/BenchKit/bin//../reducer/bin//../../smart/bin//parser/Fireability.jar
Model checker /home/mcc/BenchKit/bin//../reducer/bin//../../smart/bin//rem_exec//smart

GOT IT HERE. BS
Petri model created: 5264 places, 13833 transitions, 86284 arcs.
Final Score: 2.1621936405E7
Took : 230 seconds
Reachability Fireability file is: ReachabilityFireability.xml
READY TO PARSE. BS

BK_STOP 1678718798229

--------------------
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 ReachabilityFireability -timeout 360 -rebuildPNML
ERROR in file model.sm near line 105464:
syntax error

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="MultiCrashLeafsetExtension-PT-S24C11"
export BK_EXAMINATION="ReachabilityFireability"
export BK_TOOL="smartxred"
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 smartxred"
echo " Input is MultiCrashLeafsetExtension-PT-S24C11, examination is ReachabilityFireability"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r235-tall-167856422400879"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/MultiCrashLeafsetExtension-PT-S24C11.tgz
mv MultiCrashLeafsetExtension-PT-S24C11 execution
cd execution
if [ "ReachabilityFireability" = "ReachabilityDeadlock" ] || [ "ReachabilityFireability" = "UpperBounds" ] || [ "ReachabilityFireability" = "QuasiLiveness" ] || [ "ReachabilityFireability" = "StableMarking" ] || [ "ReachabilityFireability" = "Liveness" ] || [ "ReachabilityFireability" = "OneSafe" ] || [ "ReachabilityFireability" = "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 [ "ReachabilityFireability" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "ReachabilityFireability" != "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 "ReachabilityFireability.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property ReachabilityFireability.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "ReachabilityFireability.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 '' ReachabilityFireability.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "ReachabilityFireability" = "ReachabilityDeadlock" ] || [ "ReachabilityFireability" = "QuasiLiveness" ] || [ "ReachabilityFireability" = "StableMarking" ] || [ "ReachabilityFireability" = "Liveness" ] || [ "ReachabilityFireability" = "OneSafe" ] ; then
echo "FORMULA_NAME ReachabilityFireability"
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 ;