Execution Chart

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

Trace from the execution

Formatting '/data/fkordon/mcc2026-input.r032-smll-177946790800199.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2026-input.qcow2 backing_fmt=qcow2 cluster_size=65536 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
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=====================================================================
Generated by BenchKit 2-5973
Executing tool gold2025
Input is BlocksWorld-PT-04, examination is Liveness
Time confinement is 1800 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r032-smll-177946790800199
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 932K
-rw-r--r-- 1 mcc users 7.2K Mar 5 16:51 CTLCardinality.txt
-rw-r--r-- 1 mcc users 65K Mar 5 16:51 CTLCardinality.xml
-rw-r--r-- 1 mcc users 6.0K Mar 5 16:51 CTLFireability.txt
-rw-r--r-- 1 mcc users 50K Mar 5 16:51 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.3K Mar 15 07:26 LTLCardinality.txt
-rw-r--r-- 1 mcc users 28K Mar 15 07:26 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.7K Mar 15 07:26 LTLFireability.txt
-rw-r--r-- 1 mcc users 20K Mar 15 07:26 LTLFireability.xml
-rw-r--r-- 1 mcc users 7.7K Mar 5 16:51 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 58K Mar 5 16:51 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 13K Mar 5 16:51 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 97K Mar 5 16:51 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K Mar 15 07:26 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.8K Mar 15 07:26 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 equiv_col
-rw-r--r-- 1 mcc users 3 Mar 3 18:30 instance
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 iscolored
-rw-r--r-- 1 mcc users 532K Mar 3 18:30 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 Liveness

=== Now, execution of the tool begins

BK_START 1779475107994

Invoking MCC driver with
GOLD_TOOL=
BK_EXAMINATION=Liveness
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=1800
BK_INPUT=BlocksWorld-PT-04
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
Liveness PT
Running Version 202505121319
[2026-05-22 18:38:30] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, Liveness, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 1800]
[2026-05-22 18:38:30] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-22 18:38:30] [INFO ] Load time of PNML (sax parser for PT used): 230 ms
[2026-05-22 18:38:30] [INFO ] Transformed 599 places.
[2026-05-22 18:38:30] [INFO ] Transformed 1105 transitions.
[2026-05-22 18:38:30] [INFO ] Found NUPN structural information;
[2026-05-22 18:38:30] [INFO ] Completing missing partition info from NUPN : creating a component with [pred_on_table_0, pred_arm_empty_0, pred_on_table_1, pred_on_table_2, pred_on_table_3, pred_on_table_4, pred_on_table_5, pred_on_table_6, pred_on_table_7, pred_on_table_8, pred_on_table_9, pred_on_table_10, pred_on_table_11, pred_on_table_12, pred_on_table_13, pred_on_table_14, pred_on_table_15, pred_on_table_16, pred_on_table_17, pred_on_table_18, pred_on_table_19, pred_on_table_20, pred_on_table_21, pred_on_table_22]
[2026-05-22 18:38:30] [INFO ] Parsed PT model containing 599 places and 1105 transitions and 5512 arcs in 413 ms.
Discarding 23 transitions out of 1105. Remains 1082
Built sparse matrix representations for Structural reductions in 15 ms.14042KB memory used
Starting structural reductions in DEADLOCK mode, iteration 0 : 599/599 places, 1105/1105 transitions.
Computed a total of 0 stabilizing places and 0 stable transitions
Computed a total of 0 stabilizing places and 0 stable transitions
Computed a total of 0 stabilizing places and 0 stable transitions
Applied a total of 0 rules in 220 ms. Remains 599 /599 variables (removed 0) and now considering 1105/1105 (removed 0) transitions.
Finished structural reductions in DEADLOCK mode , in 1 iterations and 239 ms. Remains : 599/599 places, 1105/1105 transitions.
Starting structural reductions in DEADLOCK mode, iteration 0 : 599/599 places, 1105/1105 transitions.
Computed a total of 0 stabilizing places and 0 stable transitions
Computed a total of 0 stabilizing places and 0 stable transitions
Computed a total of 0 stabilizing places and 0 stable transitions
Applied a total of 0 rules in 119 ms. Remains 599 /599 variables (removed 0) and now considering 1105/1105 (removed 0) transitions.
// Phase 1: matrix 1105 rows 599 cols
[2026-05-22 18:38:31] [INFO ] Computed 47 invariants in 36 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-22 18:38:31] [INFO ] Implicit Places using invariants in 500 ms returned []
[2026-05-22 18:38:31] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-22 18:38:32] [INFO ] State equation strengthened by 41 read => feed constraints.
[2026-05-22 18:38:32] [INFO ] Implicit Places using invariants and state equation in 920 ms returned []
Implicit Place search using SMT with State Equation took 1489 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-22 18:38:32] [INFO ] Redundant transitions in 89 ms returned []
Running 1102 sub problems to find dead transitions.
[2026-05-22 18:38:32] [INFO ] Invariant cache hit.
[2026-05-22 18:38:33] [INFO ] State equation strengthened by 41 read => feed constraints.
Excessive predecessor constraint size, skipping predecessor.
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Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
Problem TDEAD1 is UNSAT
Problem TDEAD24 is UNSAT
Problem TDEAD70 is UNSAT
Problem TDEAD94 is UNSAT
Problem TDEAD118 is UNSAT
Problem TDEAD142 is UNSAT
Problem TDEAD166 is UNSAT
Problem TDEAD190 is UNSAT
Problem TDEAD214 is UNSAT
Problem TDEAD238 is UNSAT
Problem TDEAD262 is UNSAT
Problem TDEAD310 is UNSAT
Problem TDEAD334 is UNSAT
Problem TDEAD358 is UNSAT
Problem TDEAD382 is UNSAT
Problem TDEAD430 is UNSAT
Problem TDEAD454 is UNSAT
Problem TDEAD478 is UNSAT
Problem TDEAD502 is UNSAT
Problem TDEAD550 is UNSAT
Problem TDEAD574 is UNSAT
Problem TDEAD598 is UNSAT
Problem TDEAD642 is UNSAT
Problem TDEAD684 is UNSAT
Problem TDEAD724 is UNSAT
Problem TDEAD762 is UNSAT
Problem TDEAD798 is UNSAT
Problem TDEAD832 is UNSAT
Problem TDEAD864 is UNSAT
Problem TDEAD894 is UNSAT
Problem TDEAD948 is UNSAT
Problem TDEAD972 is UNSAT
Problem TDEAD994 is UNSAT
Problem TDEAD1014 is UNSAT
Problem TDEAD1048 is UNSAT
Problem TDEAD1062 is UNSAT
Problem TDEAD1074 is UNSAT
Problem TDEAD1084 is UNSAT
Problem TDEAD1098 is UNSAT
Problem TDEAD1102 is UNSAT
At refinement iteration 0 (INCLUDED_ONLY) 0/596 variables, 41/41 constraints. Problems are: Problem set: 40 solved, 1062 unsolved
Error getting values : (error "ParserException while parsing response: (timeout
org.smtlib.IParser$ParserException: Unbalanced parentheses at end of input")
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 596/1704 variables, and 41 constraints, problems are : Problem set: 40 solved, 1062 unsolved in 30073 ms.
Refiners :[Positive P Invariants (semi-flows): 41/47 constraints, State Equation: 0/599 constraints, ReadFeed: 0/41 constraints, PredecessorRefiner: 1082/553 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 40 solved, 1062 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/576 variables, 4/4 constraints. Problems are: Problem set: 40 solved, 1062 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/576 variables, 0/4 constraints. Problems are: Problem set: 40 solved, 1062 unsolved
Problem TDEAD286 is UNSAT
Problem TDEAD406 is UNSAT
Problem TDEAD526 is UNSAT
Problem TDEAD922 is UNSAT
Problem TDEAD1032 is UNSAT
Problem TDEAD1092 is UNSAT
At refinement iteration 2 (OVERLAPS) 23/599 variables, 43/47 constraints. Problems are: Problem set: 46 solved, 1056 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-22 18:39:32] [INFO ] Deduced a trap composed of 24 places in 148 ms of which 18 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-22 18:39:32] [INFO ] Deduced a trap composed of 25 places in 68 ms of which 2 ms to minimize.
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 599/1704 variables, and 49 constraints, problems are : Problem set: 46 solved, 1056 unsolved in 30039 ms.
Refiners :[Positive P Invariants (semi-flows): 47/47 constraints, State Equation: 0/599 constraints, ReadFeed: 0/41 constraints, PredecessorRefiner: 529/553 constraints, Known Traps: 2/2 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 62697ms problems are : Problem set: 46 solved, 1056 unsolved
Search for dead transitions found 46 dead transitions in 62729ms
Found 46 dead transitions using SMT.
Drop transitions (Dead Transitions using SMT only with invariants) removed 46 transitions
Dead transitions reduction (with SMT) removed 46 transitions
Starting structural reductions in DEADLOCK mode, iteration 1 : 599/599 places, 1059/1105 transitions.
Computed a total of 23 stabilizing places and 0 stable transitions
Graph (complete) has 3075 edges and 599 vertex of which 576 are kept as prefixes of interest. Removing 23 places using SCC suffix rule.9 ms
Discarding 23 places :
Also discarding 0 output transitions
Computed a total of 0 stabilizing places and 0 stable transitions
Computed a total of 0 stabilizing places and 0 stable transitions
Applied a total of 1 rules in 70 ms. Remains 576 /599 variables (removed 23) and now considering 1059/1059 (removed 0) transitions.
// Phase 1: matrix 1059 rows 576 cols
[2026-05-22 18:39:35] [INFO ] Computed 47 invariants in 8 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-22 18:39:35] [INFO ] Implicit Places using invariants in 176 ms returned []
[2026-05-22 18:39:35] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-22 18:39:36] [INFO ] State equation strengthened by 1 read => feed constraints.
[2026-05-22 18:39:36] [INFO ] Implicit Places using invariants and state equation in 605 ms returned []
Implicit Place search using SMT with State Equation took 783 ms to find 0 implicit places.
Starting structural reductions in DEADLOCK mode, iteration 2 : 576/599 places, 1059/1105 transitions.
Finished structural reductions in DEADLOCK mode , in 2 iterations and 65316 ms. Remains : 576/599 places, 1059/1105 transitions.
Random walk for 1250000 steps, including 0 resets, run took 27748 ms (no deadlock found). (steps per millisecond=45 )
Random directed walk for 1250000 steps, including 0 resets, run took 20310 ms (no deadlock found). (steps per millisecond=61 )
[2026-05-22 18:40:24] [INFO ] Invariant cache hit.
Starting Z3 with timeout 300.0 s and query timeout 30000.0 ms
[2026-05-22 18:40:25] [INFO ] [Real]Absence check using 47 positive place invariants in 251 ms returned sat
[2026-05-22 18:40:27] [INFO ] [Real]Absence check using state equation in 2713 ms returned sat
[2026-05-22 18:40:28] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 300.0 s and query timeout 30000.0 ms
[2026-05-22 18:40:28] [INFO ] [Nat]Absence check using 47 positive place invariants in 338 ms returned sat
[2026-05-22 18:40:39] [INFO ] [Nat]Absence check using state equation in 10302 ms returned sat
[2026-05-22 18:40:39] [INFO ] State equation strengthened by 1 read => feed constraints.
[2026-05-22 18:40:39] [INFO ] [Nat]Added 1 Read/Feed constraints in 78 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-22 18:40:39] [INFO ] Deduced a trap composed of 46 places in 752 ms of which 67 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-22 18:40:40] [INFO ] Deduced a trap composed of 46 places in 651 ms of which 38 ms to minimize.
[2026-05-22 18:40:40] [INFO ] Trap strengthening procedure managed to obtain unsat after adding 2 trap constraints in 1731 ms
Starting structural reductions in LIVENESS mode, iteration 0 : 599/599 places, 1105/1105 transitions.
Applied a total of 0 rules in 16 ms. Remains 599 /599 variables (removed 0) and now considering 1105/1105 (removed 0) transitions.
// Phase 1: matrix 1105 rows 599 cols
[2026-05-22 18:40:40] [INFO ] Computed 47 invariants in 7 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-22 18:40:41] [INFO ] Implicit Places using invariants in 851 ms returned []
[2026-05-22 18:40:41] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-22 18:40:42] [INFO ] State equation strengthened by 41 read => feed constraints.
[2026-05-22 18:40:43] [INFO ] Implicit Places using invariants and state equation in 2015 ms returned []
Implicit Place search using SMT with State Equation took 2869 ms to find 0 implicit places.
Running 1102 sub problems to find dead transitions.
[2026-05-22 18:40:43] [INFO ] Invariant cache hit.
[2026-05-22 18:40:43] [INFO ] State equation strengthened by 41 read => feed constraints.
Excessive predecessor constraint size, skipping predecessor.
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Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
Problem TDEAD1 is UNSAT
Problem TDEAD24 is UNSAT
Problem TDEAD70 is UNSAT
Problem TDEAD94 is UNSAT
Problem TDEAD118 is UNSAT
Problem TDEAD142 is UNSAT
Problem TDEAD166 is UNSAT
Problem TDEAD190 is UNSAT
Problem TDEAD214 is UNSAT
Problem TDEAD238 is UNSAT
Problem TDEAD262 is UNSAT
Problem TDEAD310 is UNSAT
Problem TDEAD334 is UNSAT
Problem TDEAD358 is UNSAT
Problem TDEAD382 is UNSAT
Problem TDEAD430 is UNSAT
Problem TDEAD454 is UNSAT
Problem TDEAD478 is UNSAT
Problem TDEAD502 is UNSAT
Problem TDEAD550 is UNSAT
Problem TDEAD574 is UNSAT
Problem TDEAD598 is UNSAT
Problem TDEAD642 is UNSAT
Problem TDEAD684 is UNSAT
Problem TDEAD724 is UNSAT
Problem TDEAD762 is UNSAT
Problem TDEAD798 is UNSAT
Problem TDEAD832 is UNSAT
Problem TDEAD864 is UNSAT
Problem TDEAD894 is UNSAT
Problem TDEAD948 is UNSAT
Problem TDEAD972 is UNSAT
Problem TDEAD994 is UNSAT
Problem TDEAD1014 is UNSAT
Problem TDEAD1048 is UNSAT
Problem TDEAD1062 is UNSAT
Problem TDEAD1074 is UNSAT
Problem TDEAD1084 is UNSAT
Problem TDEAD1098 is UNSAT
Problem TDEAD1102 is UNSAT
At refinement iteration 0 (INCLUDED_ONLY) 0/596 variables, 41/41 constraints. Problems are: Problem set: 40 solved, 1062 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 596/1704 variables, and 41 constraints, problems are : Problem set: 40 solved, 1062 unsolved in 30030 ms.
Refiners :[Positive P Invariants (semi-flows): 41/47 constraints, State Equation: 0/599 constraints, ReadFeed: 0/41 constraints, PredecessorRefiner: 1082/553 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 40 solved, 1062 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/576 variables, 4/4 constraints. Problems are: Problem set: 40 solved, 1062 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 576/1704 variables, and 4 constraints, problems are : Problem set: 40 solved, 1062 unsolved in 30038 ms.
Refiners :[Positive P Invariants (semi-flows): 4/47 constraints, State Equation: 0/599 constraints, ReadFeed: 0/41 constraints, PredecessorRefiner: 529/553 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 61682ms problems are : Problem set: 40 solved, 1062 unsolved
Search for dead transitions found 40 dead transitions in 61693ms
Found 40 dead transitions using SMT.
FORMULA Liveness FALSE TECHNIQUES QUASILIVENESS_TEST
Total runtime 195199 ms.

BK_STOP 1779475305551

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

+ export BINDIR=/home/mcc/BenchKit/bin//../itstools/bin//../
+ BINDIR=/home/mcc/BenchKit/bin//../itstools/bin//../
++ pwd
+ export MODEL=/home/mcc/execution
+ MODEL=/home/mcc/execution
+ [[ Liveness = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution Liveness -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 1800
+ ulimit -s 65536
+ [[ -z '' ]]
+ export LTSMIN_MEM_SIZE=8589934592
+ LTSMIN_MEM_SIZE=8589934592
++ sed s/.jar//
++ perl -pe 's/.*\.//g'
++ ls /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202505121319.jar
+ VERSION=202505121319
+ echo 'Running Version 202505121319'
+ /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/its-tools -pnfolder /home/mcc/execution -examination Liveness -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 1800

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="BlocksWorld-PT-04"
export BK_EXAMINATION="Liveness"
export BK_TOOL="gold2025"
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 2-5973"
echo " Executing tool gold2025"
echo " Input is BlocksWorld-PT-04, examination is Liveness"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r032-smll-177946790800199"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/BlocksWorld-PT-04.tgz
mv BlocksWorld-PT-04 execution
cd execution
if [ "Liveness" = "ReachabilityDeadlock" ] || [ "Liveness" = "UpperBounds" ] || [ "Liveness" = "QuasiLiveness" ] || [ "Liveness" = "StableMarking" ] || [ "Liveness" = "Liveness" ] || [ "Liveness" = "OneSafe" ] || [ "Liveness" = "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 [ "Liveness" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "Liveness" != "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 "Liveness.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 '' Liveness.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "Liveness" = "ReachabilityDeadlock" ] || [ "Liveness" = "QuasiLiveness" ] || [ "Liveness" = "StableMarking" ] || [ "Liveness" = "Liveness" ] || [ "Liveness" = "OneSafe" ] ; then
echo "FORMULA_NAME Liveness"
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 ;