fond
Model Checking Contest @ Petri Nets 2017
7th edition, Zaragoza, Spain, June 27, 2017
Execution of r030-blw3-149440266400014
Last Updated
June 27, 2017

About the Execution of ITS-Tools for DNAwalker-PT-02track12Block2

Execution Summary
Max Memory
Used (MB)
Time wait (ms) CPU Usage (ms) I/O Wait (ms) Computed Result Execution
Status
259.380 2740.00 3907.00 120.40 FTTFFTFFFTFFFFFT normal

Execution Chart

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

Trace from the execution

Waiting for the VM to be ready (probing ssh)
......
=====================================================================
Generated by BenchKit 2-3254
Executing tool itstools
Input is DNAwalker-PT-02track12Block2, examination is LTLCardinality
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r030-blw3-149440266400014
=====================================================================


--------------------
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 DNAwalker-PT-02track12Block2-LTLCardinality-0
FORMULA_NAME DNAwalker-PT-02track12Block2-LTLCardinality-1
FORMULA_NAME DNAwalker-PT-02track12Block2-LTLCardinality-10
FORMULA_NAME DNAwalker-PT-02track12Block2-LTLCardinality-11
FORMULA_NAME DNAwalker-PT-02track12Block2-LTLCardinality-12
FORMULA_NAME DNAwalker-PT-02track12Block2-LTLCardinality-13
FORMULA_NAME DNAwalker-PT-02track12Block2-LTLCardinality-14
FORMULA_NAME DNAwalker-PT-02track12Block2-LTLCardinality-15
FORMULA_NAME DNAwalker-PT-02track12Block2-LTLCardinality-2
FORMULA_NAME DNAwalker-PT-02track12Block2-LTLCardinality-3
FORMULA_NAME DNAwalker-PT-02track12Block2-LTLCardinality-4
FORMULA_NAME DNAwalker-PT-02track12Block2-LTLCardinality-5
FORMULA_NAME DNAwalker-PT-02track12Block2-LTLCardinality-6
FORMULA_NAME DNAwalker-PT-02track12Block2-LTLCardinality-7
FORMULA_NAME DNAwalker-PT-02track12Block2-LTLCardinality-8
FORMULA_NAME DNAwalker-PT-02track12Block2-LTLCardinality-9

=== Now, execution of the tool begins

BK_START 1496243291194


Using solver YICES2 to compute partial order matrices.
Built C files in :
/home/mcc/execution
its-ltl command run as :

/home/mcc/BenchKit/eclipse/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.201705302212/bin/its-ltl-linux64 --gc-threshold 2000000 -i /home/mcc/execution/LTLCardinality.pnml.gal -t CGAL -LTL /home/mcc/execution/LTLCardinality.ltl -c -stutter-deadlock
Read 16 LTL properties
Checking formula 0 : !((X(F(X("B5<=A5")))))
Formula 0 simplified : !XFX"B5<=A5"
Presburger conditions satisfied. Using coverability to approximate state space in K-Induction.
// Phase 1: matrix 84 rows 14 cols
4 unique states visited
4 strongly connected components in search stack
4 transitions explored
4 items max in DFS search stack
10 ticks for the emptiness check
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
STATS,0,0.12035,26616,1,0,281,20256,187,110,982,20296,263
an accepting run exists (use option '-e' to print it)
Formula 0 is FALSE accepting run found.
FORMULA DNAwalker-PT-02track12Block2-LTLCardinality-0 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL
Checking formula 1 : !(("A11<=A12"))
Formula 1 simplified : !"A11<=A12"
1 unique states visited
0 strongly connected components in search stack
0 transitions explored
1 items max in DFS search stack
0 ticks for the emptiness check
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
STATS,0,0.120787,26620,1,0,281,20256,190,110,986,20296,265
no accepting run found
Formula 1 is TRUE no accepting run found.
FORMULA DNAwalker-PT-02track12Block2-LTLCardinality-1 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL
Checking formula 2 : !((X("A9<=A4")))
Formula 2 simplified : !X"A9<=A4"
4 unique states visited
4 strongly connected components in search stack
4 transitions explored
4 items max in DFS search stack
2 ticks for the emptiness check
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
STATS,0,0.147684,27492,1,0,297,24110,199,134,1015,24282,314
an accepting run exists (use option '-e' to print it)
Formula 2 is FALSE accepting run found.
FORMULA DNAwalker-PT-02track12Block2-LTLCardinality-2 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL
Checking formula 3 : !((F(F(X(F("A5<=B6"))))))
Formula 3 simplified : !FXF"A5<=B6"
2 unique states visited
0 strongly connected components in search stack
1 transitions explored
2 items max in DFS search stack
1 ticks for the emptiness check
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
STATS,0,0.148247,27576,1,0,297,24111,208,134,1021,24287,318
no accepting run found
Formula 3 is TRUE no accepting run found.
FORMULA DNAwalker-PT-02track12Block2-LTLCardinality-3 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL
Checking formula 4 : !(("A9>=3"))
Formula 4 simplified : !"A9>=3"
3 unique states visited
3 strongly connected components in search stack
3 transitions explored
3 items max in DFS search stack
3 ticks for the emptiness check
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
STATS,0,0.179177,28296,1,0,312,27961,211,159,1023,28970,366
an accepting run exists (use option '-e' to print it)
Formula 4 is FALSE accepting run found.
FORMULA DNAwalker-PT-02track12Block2-LTLCardinality-4 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL
Checking formula 5 : !(("A11>=2"))
Formula 5 simplified : !"A11>=2"
3 unique states visited
3 strongly connected components in search stack
3 transitions explored
3 items max in DFS search stack
0 ticks for the emptiness check
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
STATS,0,0.179573,28300,1,0,312,27961,214,159,1024,28970,368
an accepting run exists (use option '-e' to print it)
Formula 5 is FALSE accepting run found.
FORMULA DNAwalker-PT-02track12Block2-LTLCardinality-5 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL
Checking formula 6 : !((X((G("A11>=1"))U("A10>=3"))))
Formula 6 simplified : !X(G"A11>=1" U "A10>=3")
14 unique states visited
14 strongly connected components in search stack
14 transitions explored
14 items max in DFS search stack
2 ticks for the emptiness check
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
STATS,0,0.206676,30216,1,0,381,33230,229,228,1031,37290,554
an accepting run exists (use option '-e' to print it)
Formula 6 is FALSE accepting run found.
FORMULA DNAwalker-PT-02track12Block2-LTLCardinality-6 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL
Checking formula 7 : !((X(G(("A11>=2")U("A4<=A6")))))
Formula 7 simplified : !XG("A11>=2" U "A4<=A6")
15 unique states visited
14 strongly connected components in search stack
16 transitions explored
14 items max in DFS search stack
5 ticks for the emptiness check
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
STATS,0,0.251169,32392,1,0,450,41787,243,290,1045,46884,732
an accepting run exists (use option '-e' to print it)
Formula 7 is FALSE accepting run found.
FORMULA DNAwalker-PT-02track12Block2-LTLCardinality-7 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL
Checking formula 8 : !(("A6>=1"))
Formula 8 simplified : !"A6>=1"
3 unique states visited
3 strongly connected components in search stack
3 transitions explored
3 items max in DFS search stack
0 ticks for the emptiness check
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
STATS,0,0.251603,32392,1,0,450,41787,246,290,1046,46885,734
an accepting run exists (use option '-e' to print it)
Formula 8 is FALSE accepting run found.
FORMULA DNAwalker-PT-02track12Block2-LTLCardinality-8 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL
Checking formula 9 : !((F(X(F(G("A1<=A3"))))))
Formula 9 simplified : !FXFG"A1<=A3"
2 unique states visited
0 strongly connected components in search stack
1 transitions explored
2 items max in DFS search stack
6 ticks for the emptiness check
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
STATS,0,0.30682,33580,1,0,505,46774,259,346,1053,53878,905
no accepting run found
Formula 9 is TRUE no accepting run found.
FORMULA DNAwalker-PT-02track12Block2-LTLCardinality-9 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL
Checking formula 10 : !((("A10<=A6")U(("A4>=3")U("A5<=A2"))))
Formula 10 simplified : !("A10<=A6" U ("A4>=3" U "A5<=A2"))
1 unique states visited
0 strongly connected components in search stack
0 transitions explored
1 items max in DFS search stack
0 ticks for the emptiness check
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
STATS,0,0.308283,33928,1,0,505,46774,278,346,1071,53878,911
no accepting run found
Formula 10 is TRUE no accepting run found.
FORMULA DNAwalker-PT-02track12Block2-LTLCardinality-10 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL
Checking formula 11 : !((F("A7>=3")))
Formula 11 simplified : !F"A7>=3"
2 unique states visited
2 strongly connected components in search stack
2 transitions explored
2 items max in DFS search stack
1 ticks for the emptiness check
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
STATS,0,0.316311,34032,1,0,522,47856,287,369,1073,55798,993
an accepting run exists (use option '-e' to print it)
Formula 11 is FALSE accepting run found.
FORMULA DNAwalker-PT-02track12Block2-LTLCardinality-11 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL
Checking formula 12 : !(("A1>=3"))
Formula 12 simplified : !"A1>=3"
3 unique states visited
3 strongly connected components in search stack
3 transitions explored
3 items max in DFS search stack
0 ticks for the emptiness check
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
STATS,0,0.316599,34032,1,0,522,47856,290,369,1075,55798,995
an accepting run exists (use option '-e' to print it)
Formula 12 is FALSE accepting run found.
FORMULA DNAwalker-PT-02track12Block2-LTLCardinality-12 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL
Checking formula 13 : !((F(F("A8<=B6"))))
Formula 13 simplified : !F"A8<=B6"
1 unique states visited
0 strongly connected components in search stack
0 transitions explored
1 items max in DFS search stack
0 ticks for the emptiness check
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
STATS,0,0.316934,34264,1,0,522,47856,299,369,1078,55798,999
no accepting run found
Formula 13 is TRUE no accepting run found.
FORMULA DNAwalker-PT-02track12Block2-LTLCardinality-13 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL
Checking formula 14 : !((G("A11<=A1")))
Formula 14 simplified : !G"A11<=A1"
3 unique states visited
3 strongly connected components in search stack
3 transitions explored
3 items max in DFS search stack
1 ticks for the emptiness check
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
STATS,0,0.330533,34556,1,0,536,50573,305,389,1081,58507,1048
an accepting run exists (use option '-e' to print it)
Formula 14 is FALSE accepting run found.
FORMULA DNAwalker-PT-02track12Block2-LTLCardinality-14 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL
Checking formula 15 : !((X((X("A8<=A5"))U(G("A9>=2")))))
Formula 15 simplified : !X(X"A8<=A5" U G"A9>=2")
5 unique states visited
5 strongly connected components in search stack
5 transitions explored
5 items max in DFS search stack
4 ticks for the emptiness check
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
STATS,0,0.374322,36464,1,0,559,55914,314,418,1086,65109,1113
an accepting run exists (use option '-e' to print it)
Formula 15 is FALSE accepting run found.
FORMULA DNAwalker-PT-02track12Block2-LTLCardinality-15 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL
Exit code :0

BK_STOP 1496243293934

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

+ export BINDIR=/home/mcc/BenchKit/
+ BINDIR=/home/mcc/BenchKit/
++ pwd
+ export MODEL=/home/mcc/execution
+ MODEL=/home/mcc/execution
+ [[ LTLCardinality = StateSpace ]]
+ /home/mcc/BenchKit//runeclipse.sh /home/mcc/execution LTLCardinality -its -ltsminpath /home/mcc/BenchKit//lts_install_dir/ -smt
+ ulimit -s 65536
+ java -Dosgi.requiredJavaVersion=1.6 -Xss8m -Xms40m -Xmx8192m -Declipse.pde.launch=true -Dfile.encoding=UTF-8 -classpath /home/mcc/BenchKit//eclipse/plugins/org.eclipse.equinox.launcher_1.3.201.v20161025-1711.jar org.eclipse.equinox.launcher.Main -application fr.lip6.move.gal.application.pnmcc -data /home/mcc/BenchKit//workspace -os linux -ws gtk -arch x86_64 -nl en_US -consoleLog -pnfolder /home/mcc/execution -examination LTLCardinality -yices2path /home/mcc/BenchKit//yices/bin/yices -its -ltsminpath /home/mcc/BenchKit//lts_install_dir/ -smt
May 31, 2017 3:08:12 PM fr.lip6.move.gal.application.MccTranslator transformPNML
INFO: Parsing pnml file : /home/mcc/execution/model.pnml
May 31, 2017 3:08:12 PM fr.lip6.move.gal.nupn.PTNetReader loadFromXML
INFO: Load time of PNML (sax parser for PT used): 49 ms
May 31, 2017 3:08:12 PM fr.lip6.move.gal.pnml.togal.PTGALTransformer handlePage
INFO: Transformed 14 places.
May 31, 2017 3:08:12 PM fr.lip6.move.gal.pnml.togal.PTGALTransformer handlePage
INFO: Transformed 84 transitions.
May 31, 2017 3:08:13 PM fr.lip6.move.gal.instantiate.GALRewriter flatten
INFO: Flatten gal took : 61 ms
May 31, 2017 3:08:13 PM fr.lip6.move.serialization.SerializationUtil systemToFile
INFO: Time to serialize gal into /home/mcc/execution/LTLCardinality.pnml.gal : 9 ms
May 31, 2017 3:08:13 PM fr.lip6.move.serialization.SerializationUtil serializePropertiesForITSLTLTools
INFO: Time to serialize properties into /home/mcc/execution/LTLCardinality.ltl : 1 ms
May 31, 2017 3:08:13 PM fr.lip6.move.gal.gal2smt.bmc.KInductionSolver computeAndDeclareInvariants
INFO: Computed 0 place invariants in 9 ms
May 31, 2017 3:08:13 PM fr.lip6.move.gal.gal2smt.bmc.KInductionSolver init
INFO: Proved 14 variables to be positive in 32 ms
May 31, 2017 3:08:13 PM fr.lip6.move.gal.gal2smt.bmc.NecessaryEnablingsolver computeAblingMatrix
INFO: Computing symmetric may disable matrix : 84 transitions.
May 31, 2017 3:08:13 PM fr.lip6.move.gal.gal2smt.bmc.NecessaryEnablingsolver printStats
INFO: Computation of Completed :0/84 took 1 ms. Total solver calls (SAT/UNSAT): 3(0/3)
May 31, 2017 3:08:13 PM fr.lip6.move.gal.itstools.Runner runTool
INFO: Standard error output from running tool CommandLine [args=[/home/mcc/BenchKit/eclipse/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.201705302212/bin/its-ltl-linux64, --gc-threshold, 2000000, -i, /home/mcc/execution/LTLCardinality.pnml.gal, -t, CGAL, -LTL, /home/mcc/execution/LTLCardinality.ltl, -c, -stutter-deadlock], workingDir=/home/mcc/execution]
Reverse transition relation is NOT exact ! Due to transitions tb5, tAb5, tb6, tAb6, t1_2, t1_3, t1_4, t1_5, t1_9, t2_3, t2_4, t2_5, t2_6, t2_9, t2_10, t3_2, t3_4, t3_5, t3_6, t3_7, t3_9, t3_10, t3_11, t4_2, t4_3, t4_5, t4_6, t4_7, t4_9, t4_10, t4_11, t5_2, t5_3, t5_4, t5_6, t5_7, t5_8, t5_9, t5_10, t5_11, t6_2, t6_3, t6_4, t6_5, t6_7, t6_8, t6_9, t6_10, t7_3, t7_4, t7_5, t7_9, t9_2, t9_3, t9_4, t9_5, t9_6, t9_7, t9_10, t9_11, t9_12, t10_3, t10_4, t10_5, t10_6, t10_9, t10_12, t11_3, t11_4, t11_5, t11_9, Intersection with reachable at each step enabled. (destroyed/reverse/intersect/total) :5/8/71/84
Computing Next relation with stutter on 6 deadlock states
Computing Next relation with stutter on 6 deadlock states
Computing Next relation with stutter on 6 deadlock states
Computing Next relation with stutter on 6 deadlock states
Computing Next relation with stutter on 6 deadlock states
Computing Next relation with stutter on 6 deadlock states
Computing Next relation with stutter on 6 deadlock states
Computing Next relation with stutter on 6 deadlock states
Computing Next relation with stutter on 6 deadlock states
Computing Next relation with stutter on 6 deadlock states
Computing Next relation with stutter on 6 deadlock states
Computing Next relation with stutter on 6 deadlock states
Computing Next relation with stutter on 6 deadlock states
Computing Next relation with stutter on 6 deadlock states
Computing Next relation with stutter on 6 deadlock states
Computing Next relation with stutter on 6 deadlock states

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="DNAwalker-PT-02track12Block2"
export BK_EXAMINATION="LTLCardinality"
export BK_TOOL="itstools"
export BK_RESULT_DIR="/tmp/BK_RESULTS/OUTPUTS"
export BK_TIME_CONFINEMENT="3600"
export BK_MEMORY_CONFINEMENT="16384"

# 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

tar xzf /home/mcc/BenchKit/INPUTS/DNAwalker-PT-02track12Block2.tgz
mv DNAwalker-PT-02track12Block2 execution

# this is for BenchKit: explicit launching of the test

cd execution
echo "====================================================================="
echo " Generated by BenchKit 2-3254"
echo " Executing tool itstools"
echo " Input is DNAwalker-PT-02track12Block2, examination is LTLCardinality"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r030-blw3-149440266400014"
echo "====================================================================="
echo
echo "--------------------"
echo "content from stdout:"
echo
echo "=== Data for post analysis generated by BenchKit (invocation template)"
echo
if [ "LTLCardinality" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "LTLCardinality" != "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 "LTLCardinality.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property LTLCardinality.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "LTLCardinality.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 '' LTLCardinality.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
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 ;