Execution Chart

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

Trace from the execution

Formatting '/mnt/tpsp/fkordon/mcc2023-input.r042-tajo-167813696100695.qcow2', fmt=qcow2 size=4294967296 backing_file='/mnt/tpsp/fkordon/mcc2023-input.qcow2' encryption=off cluster_size=65536 lazy_refcounts=off
Waiting for the VM to be ready (probing ssh)
..............................................................................................................................................................................................................................................................................................................................................................................................
=====================================================================
Generated by BenchKit 2-5348
Executing tool marciexred
Input is CANConstruction-PT-100, examination is ReachabilityFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r042-tajo-167813696100695
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 16M
-rw-r--r-- 1 mcc users 9.6K Feb 25 22:21 CTLCardinality.txt
-rw-r--r-- 1 mcc users 79K Feb 25 22:21 CTLCardinality.xml
-rw-r--r-- 1 mcc users 7.1K Feb 25 22:08 CTLFireability.txt
-rw-r--r-- 1 mcc users 52K Feb 25 22:08 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.4K Feb 25 15:40 LTLCardinality.txt
-rw-r--r-- 1 mcc users 23K Feb 25 15:40 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.8K Feb 25 15:40 LTLFireability.txt
-rw-r--r-- 1 mcc users 16K Feb 25 15:40 LTLFireability.xml
-rw-r--r-- 1 mcc users 17K Feb 25 22:37 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 134K Feb 25 22:37 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 9.5K Feb 25 22:32 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 59K Feb 25 22:32 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.9K Feb 25 15:40 UpperBounds.txt
-rw-r--r-- 1 mcc users 4.0K Feb 25 15:40 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 15M 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 CANConstruction-PT-100-ReachabilityFireability-00
FORMULA_NAME CANConstruction-PT-100-ReachabilityFireability-01
FORMULA_NAME CANConstruction-PT-100-ReachabilityFireability-02
FORMULA_NAME CANConstruction-PT-100-ReachabilityFireability-03
FORMULA_NAME CANConstruction-PT-100-ReachabilityFireability-04
FORMULA_NAME CANConstruction-PT-100-ReachabilityFireability-05
FORMULA_NAME CANConstruction-PT-100-ReachabilityFireability-06
FORMULA_NAME CANConstruction-PT-100-ReachabilityFireability-07
FORMULA_NAME CANConstruction-PT-100-ReachabilityFireability-08
FORMULA_NAME CANConstruction-PT-100-ReachabilityFireability-09
FORMULA_NAME CANConstruction-PT-100-ReachabilityFireability-10
FORMULA_NAME CANConstruction-PT-100-ReachabilityFireability-11
FORMULA_NAME CANConstruction-PT-100-ReachabilityFireability-12
FORMULA_NAME CANConstruction-PT-100-ReachabilityFireability-13
FORMULA_NAME CANConstruction-PT-100-ReachabilityFireability-14
FORMULA_NAME CANConstruction-PT-100-ReachabilityFireability-15

=== Now, execution of the tool begins

BK_START 1678742708243

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=marciexred
BK_EXAMINATION=ReachabilityFireability
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=CANConstruction-PT-100
Applying reductions before tool marcie
Invoking reducer
Running Version 202303021504
[2023-03-13 21:25:10] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, ReachabilityFireability, -timeout, 360, -rebuildPNML]
[2023-03-13 21:25:10] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2023-03-13 21:25:10] [INFO ] Load time of PNML (sax parser for PT used): 721 ms
[2023-03-13 21:25:10] [INFO ] Transformed 21202 places.
[2023-03-13 21:25:11] [INFO ] Transformed 40800 transitions.
[2023-03-13 21:25:11] [INFO ] Parsed PT model containing 21202 places and 40800 transitions and 122000 arcs in 990 ms.
Parsed 16 properties from file /home/mcc/execution/ReachabilityFireability.xml in 29 ms.
Working with output stream class java.io.PrintStream
Incomplete random walk after 10000 steps, including 5 resets, run finished after 937 ms. (steps per millisecond=10 ) properties (out of 16) seen :7
FORMULA CANConstruction-PT-100-ReachabilityFireability-15 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA CANConstruction-PT-100-ReachabilityFireability-12 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA CANConstruction-PT-100-ReachabilityFireability-11 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA CANConstruction-PT-100-ReachabilityFireability-07 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA CANConstruction-PT-100-ReachabilityFireability-05 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA CANConstruction-PT-100-ReachabilityFireability-03 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA CANConstruction-PT-100-ReachabilityFireability-01 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 28 ms. (steps per millisecond=357 ) properties (out of 9) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 32 ms. (steps per millisecond=312 ) properties (out of 9) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 28 ms. (steps per millisecond=357 ) properties (out of 9) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 34 ms. (steps per millisecond=294 ) properties (out of 9) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 50 ms. (steps per millisecond=200 ) properties (out of 9) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 31 ms. (steps per millisecond=322 ) properties (out of 9) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 32 ms. (steps per millisecond=312 ) properties (out of 9) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 27 ms. (steps per millisecond=370 ) properties (out of 9) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 35 ms. (steps per millisecond=285 ) properties (out of 9) seen :0
Running SMT prover for 9 properties.
// Phase 1: matrix 40800 rows 21202 cols
[2023-03-13 21:25:13] [INFO ] Computed 201 place invariants in 526 ms
[2023-03-13 21:25:19] [INFO ] [Real]Absence check using 101 positive place invariants in 693 ms returned sat
[2023-03-13 21:25:19] [INFO ] [Real]Absence check using 101 positive and 100 generalized place invariants in 244 ms returned sat
[2023-03-13 21:25:21] [INFO ] After 8024ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:9
[2023-03-13 21:25:27] [INFO ] [Nat]Absence check using 101 positive place invariants in 719 ms returned sat
[2023-03-13 21:25:27] [INFO ] [Nat]Absence check using 101 positive and 100 generalized place invariants in 247 ms returned sat
[2023-03-13 21:25:46] [INFO ] After 15409ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :8
[2023-03-13 21:25:46] [INFO ] State equation strengthened by 19900 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 21:25:46] [WARNING] SMT solver failed with error :SMT solver raised an error when submitting script.... while checking expressions.
[2023-03-13 21:25:46] [INFO ] After 25491ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :0 real:9
Fused 9 Parikh solutions to 1 different solutions.
Parikh walk visited 0 properties in 1 ms.
Support contains 135 out of 21202 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 21202/21202 places, 40800/40800 transitions.
Drop transitions removed 530 transitions
Trivial Post-agglo rules discarded 530 transitions
Performed 530 trivial Post agglomeration. Transition count delta: 530
Iterating post reduction 0 with 530 rules applied. Total rules applied 530 place count 21202 transition count 40270
Reduce places removed 530 places and 0 transitions.
Performed 104 Post agglomeration using F-continuation condition.Transition count delta: 104
Iterating post reduction 1 with 634 rules applied. Total rules applied 1164 place count 20672 transition count 40166
Reduce places removed 104 places and 0 transitions.
Iterating post reduction 2 with 104 rules applied. Total rules applied 1268 place count 20568 transition count 40166
Performed 22 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 22 Pre rules applied. Total rules applied 1268 place count 20568 transition count 40144
Deduced a syphon composed of 22 places in 22 ms
Reduce places removed 22 places and 0 transitions.
Iterating global reduction 3 with 44 rules applied. Total rules applied 1312 place count 20546 transition count 40144
Performed 9928 Post agglomeration using F-continuation condition.Transition count delta: 9928
Deduced a syphon composed of 9928 places in 51 ms
Reduce places removed 9928 places and 0 transitions.
Iterating global reduction 3 with 19856 rules applied. Total rules applied 21168 place count 10618 transition count 30216
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 3 with 1 rules applied. Total rules applied 21169 place count 10618 transition count 30215
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 3 with 1 rules applied. Total rules applied 21170 place count 10617 transition count 30215
Partial Free-agglomeration rule applied 24 times.
Drop transitions removed 24 transitions
Iterating global reduction 4 with 24 rules applied. Total rules applied 21194 place count 10617 transition count 30215
Applied a total of 21194 rules in 9090 ms. Remains 10617 /21202 variables (removed 10585) and now considering 30215/40800 (removed 10585) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 9096 ms. Remains : 10617/21202 places, 30215/40800 transitions.
Incomplete random walk after 10000 steps, including 14 resets, run finished after 633 ms. (steps per millisecond=15 ) properties (out of 9) seen :1
FORMULA CANConstruction-PT-100-ReachabilityFireability-13 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 25 ms. (steps per millisecond=400 ) properties (out of 8) seen :0
Incomplete Best-First random walk after 10000 steps, including 2 resets, run finished after 26 ms. (steps per millisecond=384 ) properties (out of 8) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 26 ms. (steps per millisecond=384 ) properties (out of 8) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 34 ms. (steps per millisecond=294 ) properties (out of 8) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 64 ms. (steps per millisecond=156 ) properties (out of 8) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 32 ms. (steps per millisecond=312 ) properties (out of 8) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 34 ms. (steps per millisecond=294 ) properties (out of 8) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 36 ms. (steps per millisecond=277 ) properties (out of 8) seen :0
Running SMT prover for 8 properties.
// Phase 1: matrix 30215 rows 10617 cols
[2023-03-13 21:25:57] [INFO ] Computed 201 place invariants in 259 ms
[2023-03-13 21:26:00] [INFO ] [Real]Absence check using 101 positive place invariants in 338 ms returned sat
[2023-03-13 21:26:00] [INFO ] [Real]Absence check using 101 positive and 100 generalized place invariants in 150 ms returned sat
[2023-03-13 21:26:18] [INFO ] After 21681ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:8
[2023-03-13 21:26:21] [INFO ] [Nat]Absence check using 101 positive place invariants in 318 ms returned sat
[2023-03-13 21:26:21] [INFO ] [Nat]Absence check using 101 positive and 100 generalized place invariants in 155 ms returned sat
[2023-03-13 21:26:43] [INFO ] After 20548ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :7
[2023-03-13 21:26:44] [INFO ] State equation strengthened by 29849 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 21:26:44] [WARNING] SMT solver failed with error :SMT solver raised an error when submitting script.... while checking expressions.
[2023-03-13 21:26:44] [INFO ] After 25455ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :0 real:8
Fused 8 Parikh solutions to 1 different solutions.
Parikh walk visited 0 properties in 0 ms.
Support contains 134 out of 10617 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 10617/10617 places, 30215/30215 transitions.
Applied a total of 0 rules in 330 ms. Remains 10617 /10617 variables (removed 0) and now considering 30215/30215 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 330 ms. Remains : 10617/10617 places, 30215/30215 transitions.
Incomplete random walk after 10000 steps, including 13 resets, run finished after 870 ms. (steps per millisecond=11 ) properties (out of 8) seen :2
FORMULA CANConstruction-PT-100-ReachabilityFireability-08 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA CANConstruction-PT-100-ReachabilityFireability-04 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 34 ms. (steps per millisecond=294 ) properties (out of 6) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 36 ms. (steps per millisecond=277 ) properties (out of 6) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 42 ms. (steps per millisecond=238 ) properties (out of 6) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 38 ms. (steps per millisecond=263 ) properties (out of 6) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 39 ms. (steps per millisecond=256 ) properties (out of 6) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 44 ms. (steps per millisecond=227 ) properties (out of 6) seen :0
Running SMT prover for 6 properties.
[2023-03-13 21:26:45] [INFO ] Invariant cache hit.
[2023-03-13 21:26:48] [INFO ] [Real]Absence check using 101 positive place invariants in 307 ms returned sat
[2023-03-13 21:26:48] [INFO ] [Real]Absence check using 101 positive and 100 generalized place invariants in 147 ms returned sat
[2023-03-13 21:27:10] [INFO ] After 24925ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:6
[2023-03-13 21:27:13] [INFO ] [Nat]Absence check using 101 positive place invariants in 312 ms returned sat
[2023-03-13 21:27:13] [INFO ] [Nat]Absence check using 101 positive and 100 generalized place invariants in 147 ms returned sat
[2023-03-13 21:27:35] [INFO ] After 21513ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :6
[2023-03-13 21:27:36] [INFO ] State equation strengthened by 29849 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 21:27:36] [WARNING] SMT solver failed with error :SMT solver raised an error when submitting script.... while checking expressions.
[2023-03-13 21:27:36] [INFO ] After 25570ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :0 real:6
Fused 6 Parikh solutions to 2 different solutions.
FORMULA CANConstruction-PT-100-ReachabilityFireability-14 TRUE TECHNIQUES TOPOLOGICAL PARIKH_WALK
FORMULA CANConstruction-PT-100-ReachabilityFireability-10 FALSE TECHNIQUES TOPOLOGICAL PARIKH_WALK
Parikh walk visited 2 properties in 52 ms.
Support contains 49 out of 10617 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 10617/10617 places, 30215/30215 transitions.
Drop transitions removed 26 transitions
Trivial Post-agglo rules discarded 26 transitions
Performed 26 trivial Post agglomeration. Transition count delta: 26
Iterating post reduction 0 with 26 rules applied. Total rules applied 26 place count 10617 transition count 30189
Reduce places removed 26 places and 0 transitions.
Iterating post reduction 1 with 26 rules applied. Total rules applied 52 place count 10591 transition count 30189
Performed 43 Post agglomeration using F-continuation condition.Transition count delta: 43
Deduced a syphon composed of 43 places in 8 ms
Reduce places removed 43 places and 0 transitions.
Iterating global reduction 2 with 86 rules applied. Total rules applied 138 place count 10548 transition count 30146
Free-agglomeration rule (complex) applied 14 times.
Iterating global reduction 2 with 14 rules applied. Total rules applied 152 place count 10548 transition count 30132
Reduce places removed 14 places and 0 transitions.
Iterating post reduction 2 with 14 rules applied. Total rules applied 166 place count 10534 transition count 30132
Applied a total of 166 rules in 976 ms. Remains 10534 /10617 variables (removed 83) and now considering 30132/30215 (removed 83) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 976 ms. Remains : 10534/10617 places, 30132/30215 transitions.
Incomplete random walk after 10000 steps, including 14 resets, run finished after 637 ms. (steps per millisecond=15 ) properties (out of 4) seen :1
FORMULA CANConstruction-PT-100-ReachabilityFireability-00 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 31 ms. (steps per millisecond=322 ) properties (out of 3) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 36 ms. (steps per millisecond=277 ) properties (out of 3) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 32 ms. (steps per millisecond=312 ) properties (out of 3) seen :0
Running SMT prover for 3 properties.
// Phase 1: matrix 30132 rows 10534 cols
[2023-03-13 21:27:38] [INFO ] Computed 201 place invariants in 317 ms
[2023-03-13 21:27:40] [INFO ] [Real]Absence check using 101 positive place invariants in 323 ms returned sat
[2023-03-13 21:27:40] [INFO ] [Real]Absence check using 101 positive and 100 generalized place invariants in 169 ms returned sat
[2023-03-13 21:27:59] [INFO ] After 21200ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:3
[2023-03-13 21:28:02] [INFO ] [Nat]Absence check using 101 positive place invariants in 302 ms returned sat
[2023-03-13 21:28:02] [INFO ] [Nat]Absence check using 101 positive and 100 generalized place invariants in 143 ms returned sat
[2023-03-13 21:28:24] [INFO ] After 21843ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :2
[2023-03-13 21:28:25] [INFO ] State equation strengthened by 29879 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 21:28:25] [WARNING] SMT solver failed with error :SMT solver raised an error when submitting script.... while checking expressions.
[2023-03-13 21:28:25] [INFO ] After 25331ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :0 real:3
Fused 3 Parikh solutions to 1 different solutions.
Parikh walk visited 0 properties in 0 ms.
Support contains 48 out of 10534 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 10534/10534 places, 30132/30132 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 7 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 0 with 2 rules applied. Total rules applied 2 place count 10533 transition count 30131
Applied a total of 2 rules in 343 ms. Remains 10533 /10534 variables (removed 1) and now considering 30131/30132 (removed 1) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 344 ms. Remains : 10533/10534 places, 30131/30132 transitions.
Incomplete random walk after 10000 steps, including 14 resets, run finished after 496 ms. (steps per millisecond=20 ) properties (out of 3) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 31 ms. (steps per millisecond=322 ) properties (out of 3) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 36 ms. (steps per millisecond=277 ) properties (out of 3) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 32 ms. (steps per millisecond=312 ) properties (out of 3) seen :0
Interrupted probabilistic random walk after 80343 steps, run timeout after 3001 ms. (steps per millisecond=26 ) properties seen :{}
Probabilistic random walk after 80343 steps, saw 73054 distinct states, run finished after 3003 ms. (steps per millisecond=26 ) properties seen :0
Running SMT prover for 3 properties.
// Phase 1: matrix 30131 rows 10533 cols
[2023-03-13 21:28:29] [INFO ] Computed 201 place invariants in 336 ms
[2023-03-13 21:28:31] [INFO ] [Real]Absence check using 101 positive place invariants in 261 ms returned sat
[2023-03-13 21:28:31] [INFO ] [Real]Absence check using 101 positive and 100 generalized place invariants in 143 ms returned sat
[2023-03-13 21:28:48] [INFO ] After 19575ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:3
[2023-03-13 21:28:50] [INFO ] [Nat]Absence check using 101 positive place invariants in 251 ms returned sat
[2023-03-13 21:28:50] [INFO ] [Nat]Absence check using 101 positive and 100 generalized place invariants in 103 ms returned sat
[2023-03-13 21:29:14] [INFO ] After 22868ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :3
[2023-03-13 21:29:14] [INFO ] State equation strengthened by 29880 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 21:29:14] [WARNING] SMT solver failed with error :SMT solver raised an error when submitting script.... while checking expressions.
[2023-03-13 21:29:14] [INFO ] After 25543ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :0 real:3
Fused 3 Parikh solutions to 2 different solutions.
Parikh walk visited 0 properties in 22 ms.
Support contains 48 out of 10533 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 10533/10533 places, 30131/30131 transitions.
Applied a total of 0 rules in 348 ms. Remains 10533 /10533 variables (removed 0) and now considering 30131/30131 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 348 ms. Remains : 10533/10533 places, 30131/30131 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 10533/10533 places, 30131/30131 transitions.
Applied a total of 0 rules in 246 ms. Remains 10533 /10533 variables (removed 0) and now considering 30131/30131 (removed 0) transitions.
[2023-03-13 21:29:15] [INFO ] Invariant cache hit.
[2023-03-13 21:29:16] [INFO ] Implicit Places using invariants in 1246 ms returned []
Implicit Place search using SMT only with invariants took 1248 ms to find 0 implicit places.
[2023-03-13 21:29:16] [INFO ] Invariant cache hit.
[2023-03-13 21:29:17] [INFO ] Dead Transitions using invariants and state equation in 1024 ms found 0 transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 2530 ms. Remains : 10533/10533 places, 30131/30131 transitions.
Graph (trivial) has 28663 edges and 10533 vertex of which 8967 / 10533 are part of one of the 89 SCC in 19 ms
Free SCC test removed 8878 places
Drop transitions removed 17667 transitions
Ensure Unique test removed 8700 transitions
Reduce isomorphic transitions removed 26367 transitions.
Graph (complete) has 4365 edges and 1655 vertex of which 1274 are kept as prefixes of interest. Removing 381 places using SCC suffix rule.4 ms
Discarding 381 places :
Also discarding 208 output transitions
Drop transitions removed 208 transitions
Drop transitions removed 894 transitions
Reduce isomorphic transitions removed 894 transitions.
Discarding 9 places :
Implicit places reduction removed 9 places
Drop transitions removed 9 transitions
Trivial Post-agglo rules discarded 9 transitions
Performed 9 trivial Post agglomeration. Transition count delta: 9
Iterating post reduction 0 with 912 rules applied. Total rules applied 914 place count 1265 transition count 2653
Reduce places removed 9 places and 0 transitions.
Performed 791 Post agglomeration using F-continuation condition.Transition count delta: 791
Iterating post reduction 1 with 800 rules applied. Total rules applied 1714 place count 1256 transition count 1862
Reduce places removed 791 places and 0 transitions.
Ensure Unique test removed 783 transitions
Reduce isomorphic transitions removed 783 transitions.
Iterating post reduction 2 with 1574 rules applied. Total rules applied 3288 place count 465 transition count 1079
Performed 22 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 22 Pre rules applied. Total rules applied 3288 place count 465 transition count 1057
Deduced a syphon composed of 22 places in 1 ms
Reduce places removed 22 places and 0 transitions.
Iterating global reduction 3 with 44 rules applied. Total rules applied 3332 place count 443 transition count 1057
Discarding 302 places :
Symmetric choice reduction at 3 with 302 rule applications. Total rules 3634 place count 141 transition count 461
Iterating global reduction 3 with 302 rules applied. Total rules applied 3936 place count 141 transition count 461
Ensure Unique test removed 294 transitions
Reduce isomorphic transitions removed 294 transitions.
Iterating post reduction 3 with 294 rules applied. Total rules applied 4230 place count 141 transition count 167
Performed 3 Post agglomeration using F-continuation condition.Transition count delta: 3
Deduced a syphon composed of 3 places in 0 ms
Reduce places removed 3 places and 0 transitions.
Iterating global reduction 4 with 6 rules applied. Total rules applied 4236 place count 138 transition count 164
Performed 3 Post agglomeration using F-continuation condition.Transition count delta: -11
Deduced a syphon composed of 3 places in 0 ms
Reduce places removed 3 places and 0 transitions.
Iterating global reduction 4 with 6 rules applied. Total rules applied 4242 place count 135 transition count 175
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 4 with 2 rules applied. Total rules applied 4244 place count 135 transition count 173
Drop transitions removed 1 transitions
Redundant transition composition rules discarded 1 transitions
Iterating global reduction 5 with 1 rules applied. Total rules applied 4245 place count 135 transition count 172
Free-agglomeration rule applied 12 times.
Iterating global reduction 5 with 12 rules applied. Total rules applied 4257 place count 135 transition count 160
Reduce places removed 12 places and 0 transitions.
Iterating post reduction 5 with 12 rules applied. Total rules applied 4269 place count 123 transition count 160
Partial Free-agglomeration rule applied 20 times.
Drop transitions removed 20 transitions
Iterating global reduction 6 with 20 rules applied. Total rules applied 4289 place count 123 transition count 160
Discarding 16 places :
Symmetric choice reduction at 6 with 16 rule applications. Total rules 4305 place count 107 transition count 144
Iterating global reduction 6 with 16 rules applied. Total rules applied 4321 place count 107 transition count 144
Applied a total of 4321 rules in 527 ms. Remains 107 /10533 variables (removed 10426) and now considering 144/30131 (removed 29987) transitions.
Running SMT prover for 3 properties.
// Phase 1: matrix 144 rows 107 cols
[2023-03-13 21:29:18] [INFO ] Computed 26 place invariants in 1 ms
[2023-03-13 21:29:18] [INFO ] [Real]Absence check using 26 positive place invariants in 7 ms returned sat
[2023-03-13 21:29:18] [INFO ] After 183ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:3
[2023-03-13 21:29:18] [INFO ] [Nat]Absence check using 26 positive place invariants in 6 ms returned sat
[2023-03-13 21:29:18] [INFO ] After 83ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :3
[2023-03-13 21:29:18] [INFO ] After 128ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :3
Attempting to minimize the solution found.
Minimization took 31 ms.
[2023-03-13 21:29:18] [INFO ] After 239ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :3
[2023-03-13 21:29:18] [INFO ] Export to MCC of 3 properties in file /home/mcc/execution/ReachabilityFireability.sr.xml took 6 ms.
[2023-03-13 21:29:18] [INFO ] Export to PNML in file /home/mcc/execution/model.sr.pnml of net with 10533 places, 30131 transitions and 120522 arcs took 134 ms.
[2023-03-13 21:29:20] [INFO ] Flatten gal took : 1587 ms
Total runtime 250717 ms.
There are residual formulas that ITS could not solve within timeout
timeout --kill-after=10s --signal=SIGINT 1m for testing only

Marcie built on Linux at 2019-11-18.
A model checker for Generalized Stochastic Petri nets

authors: Alex Tovchigrechko (IDD package and CTL model checking)

Martin Schwarick (Symbolic numerical analysis and CSL model checking)

Christian Rohr (Simulative and approximative numerical model checking)

marcie@informatik.tu-cottbus.de

called as: /home/mcc/BenchKit/bin//../reducer/bin//../../marcie/bin/marcie --net-file=model.pnml --mcc-file=ReachabilityFireability.xml --memory=6 --mcc-mode

parse successfull
net created successfully

Net: gen
(NrP: 10533 NrTr: 30131 NrArc: 120522)

parse formulas
formulas created successfully
place and transition orderings generation:0m43.920sec

net check time: 0m 0.033sec

init dd package: 0m 3.234sec

TIME LIMIT: Killed by timeout after 3600 seconds
MemTotal: 16393340 kB
MemFree: 6545364 kB
After kill :
MemTotal: 16393340 kB
MemFree: 16063756 kB

BK_TIME_CONFINEMENT_REACHED

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

+ ulimit -s 65536
+ [[ -z '' ]]
+ export LTSMIN_MEM_SIZE=8589934592
+ LTSMIN_MEM_SIZE=8589934592
+ export PYTHONPATH=/home/mcc/BenchKit/itstools/pylibs
+ PYTHONPATH=/home/mcc/BenchKit/itstools/pylibs
+ export LD_LIBRARY_PATH=/home/mcc/BenchKit/itstools/pylibs:
+ LD_LIBRARY_PATH=/home/mcc/BenchKit/itstools/pylibs:
++ sed s/.jar//
++ perl -pe 's/.*\.//g'
++ ls /home/mcc/BenchKit/bin//../reducer/bin//../../itstools//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202303021504.jar
+ VERSION=202303021504
+ echo 'Running Version 202303021504'
+ /home/mcc/BenchKit/bin//../reducer/bin//../../itstools//itstools/its-tools -pnfolder /home/mcc/execution -examination ReachabilityFireability -timeout 360 -rebuildPNML
check for maximal unmarked siphon
ok
check for constant places
ok
check if there are places and transitions
ok
check if there are transitions without pre-places
ok
check if at least one transition is enabled in m0
ok
check if there are transitions that can never fire
ok


initing FirstDep: 0m 1.481sec

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="CANConstruction-PT-100"
export BK_EXAMINATION="ReachabilityFireability"
export BK_TOOL="marciexred"
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 marciexred"
echo " Input is CANConstruction-PT-100, 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 r042-tajo-167813696100695"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/CANConstruction-PT-100.tgz
mv CANConstruction-PT-100 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 ;