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.r229-tall-167856412700028.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2023-input.qcow2 cluster_size=65536 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
.....................................................................................
=====================================================================
Generated by BenchKit 2-5348
Executing tool itstools
Input is HypertorusGrid-PT-d2k1p8b00, examination is LTLFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r229-tall-167856412700028
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 552K
-rw-r--r-- 1 mcc users 7.6K Feb 26 10:58 CTLCardinality.txt
-rw-r--r-- 1 mcc users 66K Feb 26 10:58 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.7K Feb 26 10:51 CTLFireability.txt
-rw-r--r-- 1 mcc users 39K Feb 26 10:51 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Jan 29 11:40 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.3K Jan 29 11:40 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 4.7K Feb 25 16:16 LTLCardinality.txt
-rw-r--r-- 1 mcc users 27K Feb 25 16:16 LTLCardinality.xml
-rw-r--r-- 1 mcc users 3.0K Feb 25 16:16 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K Feb 25 16:16 LTLFireability.xml
-rw-r--r-- 1 mcc users 15K Feb 26 11:02 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 126K Feb 26 11:02 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 21K Feb 26 11:00 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 149K Feb 26 11:00 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.9K Feb 25 16:16 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.9K Feb 25 16:16 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 5 18:22 equiv_col
-rw-r--r-- 1 mcc users 10 Mar 5 18:22 instance
-rw-r--r-- 1 mcc users 6 Mar 5 18:22 iscolored
-rwxr-xr-x 1 mcc users 8.9K 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 HypertorusGrid-PT-d2k1p8b00-LTLFireability-00
FORMULA_NAME HypertorusGrid-PT-d2k1p8b00-LTLFireability-01
FORMULA_NAME HypertorusGrid-PT-d2k1p8b00-LTLFireability-02
FORMULA_NAME HypertorusGrid-PT-d2k1p8b00-LTLFireability-03
FORMULA_NAME HypertorusGrid-PT-d2k1p8b00-LTLFireability-04
FORMULA_NAME HypertorusGrid-PT-d2k1p8b00-LTLFireability-05
FORMULA_NAME HypertorusGrid-PT-d2k1p8b00-LTLFireability-06
FORMULA_NAME HypertorusGrid-PT-d2k1p8b00-LTLFireability-07
FORMULA_NAME HypertorusGrid-PT-d2k1p8b00-LTLFireability-08
FORMULA_NAME HypertorusGrid-PT-d2k1p8b00-LTLFireability-09
FORMULA_NAME HypertorusGrid-PT-d2k1p8b00-LTLFireability-10
FORMULA_NAME HypertorusGrid-PT-d2k1p8b00-LTLFireability-11
FORMULA_NAME HypertorusGrid-PT-d2k1p8b00-LTLFireability-12
FORMULA_NAME HypertorusGrid-PT-d2k1p8b00-LTLFireability-13
FORMULA_NAME HypertorusGrid-PT-d2k1p8b00-LTLFireability-14
FORMULA_NAME HypertorusGrid-PT-d2k1p8b00-LTLFireability-15

=== Now, execution of the tool begins

BK_START 1679428507968

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=itstools
BK_EXAMINATION=LTLFireability
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=HypertorusGrid-PT-d2k1p8b00
Not applying reductions.
Model is PT
LTLFireability PT
Running Version 202303021504
[2023-03-21 19:55:09] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, LTLFireability, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2023-03-21 19:55:09] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2023-03-21 19:55:09] [INFO ] Load time of PNML (sax parser for PT used): 19 ms
[2023-03-21 19:55:09] [INFO ] Transformed 13 places.
[2023-03-21 19:55:09] [INFO ] Transformed 16 transitions.
[2023-03-21 19:55:09] [INFO ] Parsed PT model containing 13 places and 16 transitions and 64 arcs in 80 ms.
Parsed 16 properties from file /home/mcc/execution/LTLFireability.xml in 7 ms.
Working with output stream class java.io.PrintStream
Initial state reduction rules removed 4 formulas.
FORMULA HypertorusGrid-PT-d2k1p8b00-LTLFireability-00 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA HypertorusGrid-PT-d2k1p8b00-LTLFireability-02 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA HypertorusGrid-PT-d2k1p8b00-LTLFireability-07 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA HypertorusGrid-PT-d2k1p8b00-LTLFireability-09 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA HypertorusGrid-PT-d2k1p8b00-LTLFireability-13 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Support contains 13 out of 13 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 13/13 places, 16/16 transitions.
Applied a total of 0 rules in 11 ms. Remains 13 /13 variables (removed 0) and now considering 16/16 (removed 0) transitions.
// Phase 1: matrix 16 rows 13 cols
[2023-03-21 19:55:10] [INFO ] Computed 6 place invariants in 7 ms
[2023-03-21 19:55:10] [INFO ] Implicit Places using invariants in 116 ms returned []
[2023-03-21 19:55:10] [INFO ] Invariant cache hit.
[2023-03-21 19:55:10] [INFO ] Implicit Places using invariants and state equation in 48 ms returned []
Implicit Place search using SMT with State Equation took 375 ms to find 0 implicit places.
[2023-03-21 19:55:10] [INFO ] Invariant cache hit.
[2023-03-21 19:55:10] [INFO ] Dead Transitions using invariants and state equation in 37 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 426 ms. Remains : 13/13 places, 16/16 transitions.
Support contains 13 out of 13 places after structural reductions.
[2023-03-21 19:55:10] [INFO ] Flatten gal took : 16 ms
[2023-03-21 19:55:10] [INFO ] Flatten gal took : 4 ms
[2023-03-21 19:55:10] [INFO ] Input system was already deterministic with 16 transitions.
Finished random walk after 20 steps, including 0 resets, run visited all 17 properties in 12 ms. (steps per millisecond=1 )
Computed a total of 0 stabilizing places and 0 stable transitions
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202303021504/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X(X(F(p0))))'
Support contains 2 out of 13 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 13/13 places, 16/16 transitions.
Applied a total of 0 rules in 1 ms. Remains 13 /13 variables (removed 0) and now considering 16/16 (removed 0) transitions.
[2023-03-21 19:55:10] [INFO ] Invariant cache hit.
[2023-03-21 19:55:10] [INFO ] Implicit Places using invariants in 29 ms returned []
[2023-03-21 19:55:10] [INFO ] Invariant cache hit.
[2023-03-21 19:55:10] [INFO ] Implicit Places using invariants and state equation in 33 ms returned []
Implicit Place search using SMT with State Equation took 64 ms to find 0 implicit places.
[2023-03-21 19:55:10] [INFO ] Invariant cache hit.
[2023-03-21 19:55:10] [INFO ] Dead Transitions using invariants and state equation in 27 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 93 ms. Remains : 13/13 places, 16/16 transitions.
Stuttering acceptance computed with spot in 193 ms :[(NOT p0), (NOT p0), (NOT p0)]
Running random walk in product with property : HypertorusGrid-PT-d2k1p8b00-LTLFireability-01 automaton TGBA Formula[mat=[[{ cond=(NOT p0), acceptance={0} source=0 dest: 0}], [{ cond=true, acceptance={} source=1 dest: 0}], [{ cond=true, acceptance={} source=2 dest: 1}]], initial=2, aps=[p0:(AND (GEQ s4 1) (GEQ s10 1))], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, deterministic, no-univ-branch, unambiguous, semi-deterministic, stutter-sensitive, very-weak, weak, inherently-weak], stateDesc=[null, null, null][false, false, false]]
Product exploration explored 100000 steps with 13938 reset in 240 ms.
Stack based approach found an accepted trace after 64 steps with 12 reset with depth 4 and stack size 4 in 1 ms.
FORMULA HypertorusGrid-PT-d2k1p8b00-LTLFireability-01 FALSE TECHNIQUES STACK_TEST
Treatment of property HypertorusGrid-PT-d2k1p8b00-LTLFireability-01 finished in 590 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202303021504/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(F((F((G(p2)||p1))&&p0)))'
Support contains 5 out of 13 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 13/13 places, 16/16 transitions.
Applied a total of 0 rules in 5 ms. Remains 13 /13 variables (removed 0) and now considering 16/16 (removed 0) transitions.
[2023-03-21 19:55:11] [INFO ] Invariant cache hit.
[2023-03-21 19:55:11] [INFO ] Implicit Places using invariants in 43 ms returned []
[2023-03-21 19:55:11] [INFO ] Invariant cache hit.
[2023-03-21 19:55:11] [INFO ] Implicit Places using invariants and state equation in 40 ms returned []
Implicit Place search using SMT with State Equation took 86 ms to find 0 implicit places.
[2023-03-21 19:55:11] [INFO ] Redundant transitions in 1 ms returned []
[2023-03-21 19:55:11] [INFO ] Invariant cache hit.
[2023-03-21 19:55:11] [INFO ] Dead Transitions using invariants and state equation in 30 ms found 0 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 127 ms. Remains : 13/13 places, 16/16 transitions.
Stuttering acceptance computed with spot in 228 ms :[(OR (NOT p0) (AND (NOT p1) (NOT p2))), (AND (NOT p1) (NOT p2))]
Running random walk in product with property : HypertorusGrid-PT-d2k1p8b00-LTLFireability-03 automaton TGBA Formula[mat=[[{ cond=(NOT p0), acceptance={0} source=0 dest: 0}, { cond=(AND p0 (NOT p1)), acceptance={} source=0 dest: 1}], [{ cond=(AND (NOT p1) p2), acceptance={} source=1 dest: 1}, { cond=(AND (NOT p1) (NOT p2)), acceptance={0} source=1 dest: 1}]], initial=0, aps=[p0:(AND (GEQ s4 1) (GEQ s5 1) (OR (LT s4 1) (LT s6 1))), p1:(OR (LT s3 1) (LT s8 1)), p2:(OR (LT s4 1) (LT s6 1))], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, deterministic, no-univ-branch, unambiguous, semi-deterministic, stutter-invariant], stateDesc=[null, null][true, true]]
Product exploration explored 100000 steps with 7624 reset in 163 ms.
Stack based approach found an accepted trace after 5 steps with 1 reset with depth 3 and stack size 3 in 0 ms.
FORMULA HypertorusGrid-PT-d2k1p8b00-LTLFireability-03 FALSE TECHNIQUES STACK_TEST
Treatment of property HypertorusGrid-PT-d2k1p8b00-LTLFireability-03 finished in 542 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202303021504/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X((F(G(!p0)) U (!p1||X((p0 U p2))))))'
Support contains 4 out of 13 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 13/13 places, 16/16 transitions.
Applied a total of 0 rules in 1 ms. Remains 13 /13 variables (removed 0) and now considering 16/16 (removed 0) transitions.
[2023-03-21 19:55:11] [INFO ] Invariant cache hit.
[2023-03-21 19:55:11] [INFO ] Implicit Places using invariants in 29 ms returned []
[2023-03-21 19:55:11] [INFO ] Invariant cache hit.
[2023-03-21 19:55:11] [INFO ] Implicit Places using invariants and state equation in 65 ms returned []
Implicit Place search using SMT with State Equation took 96 ms to find 0 implicit places.
[2023-03-21 19:55:11] [INFO ] Invariant cache hit.
[2023-03-21 19:55:11] [INFO ] Dead Transitions using invariants and state equation in 30 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 127 ms. Remains : 13/13 places, 16/16 transitions.
Stuttering acceptance computed with spot in 218 ms :[(AND p1 (NOT p2)), (AND p1 (NOT p2)), (AND p1 (NOT p2)), (AND (NOT p2) p0), p0]
Running random walk in product with property : HypertorusGrid-PT-d2k1p8b00-LTLFireability-04 automaton TGBA Formula[mat=[[{ cond=true, acceptance={} source=0 dest: 1}], [{ cond=p1, acceptance={} source=1 dest: 2}, { cond=p1, acceptance={} source=1 dest: 3}], [{ cond=(AND p1 (NOT p2)), acceptance={0} source=2 dest: 2}, { cond=(AND p1 (NOT p2)), acceptance={} source=2 dest: 3}], [{ cond=(AND p0 (NOT p2)), acceptance={0} source=3 dest: 3}, { cond=(AND (NOT p0) (NOT p2)), acceptance={} source=3 dest: 4}], [{ cond=(NOT p0), acceptance={} source=4 dest: 4}, { cond=p0, acceptance={0} source=4 dest: 4}]], initial=0, aps=[p1:(OR (LT s4 1) (LT s6 1)), p2:(AND (GEQ s4 1) (GEQ s6 1) (GEQ s0 1) (GEQ s11 1)), p0:(AND (GEQ s0 1) (GEQ s11 1))], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, no-univ-branch, stutter-sensitive], stateDesc=[null, null, null, null, null][false, false, false, false, false]]
Product exploration explored 100000 steps with 1 reset in 143 ms.
Stack based approach found an accepted trace after 23 steps with 5 reset with depth 8 and stack size 8 in 0 ms.
FORMULA HypertorusGrid-PT-d2k1p8b00-LTLFireability-04 FALSE TECHNIQUES STACK_TEST
Treatment of property HypertorusGrid-PT-d2k1p8b00-LTLFireability-04 finished in 513 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202303021504/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X(G((F(p1)&&p0))))'
Support contains 4 out of 13 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 13/13 places, 16/16 transitions.
Applied a total of 0 rules in 1 ms. Remains 13 /13 variables (removed 0) and now considering 16/16 (removed 0) transitions.
[2023-03-21 19:55:12] [INFO ] Invariant cache hit.
[2023-03-21 19:55:12] [INFO ] Implicit Places using invariants in 53 ms returned []
[2023-03-21 19:55:12] [INFO ] Invariant cache hit.
[2023-03-21 19:55:12] [INFO ] Implicit Places using invariants and state equation in 32 ms returned []
Implicit Place search using SMT with State Equation took 89 ms to find 0 implicit places.
[2023-03-21 19:55:12] [INFO ] Invariant cache hit.
[2023-03-21 19:55:12] [INFO ] Dead Transitions using invariants and state equation in 31 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 122 ms. Remains : 13/13 places, 16/16 transitions.
Stuttering acceptance computed with spot in 141 ms :[(OR (NOT p0) (NOT p1)), (OR (NOT p0) (NOT p1)), true, (NOT p1)]
Running random walk in product with property : HypertorusGrid-PT-d2k1p8b00-LTLFireability-05 automaton TGBA Formula[mat=[[{ cond=true, acceptance={} source=0 dest: 1}], [{ cond=p0, acceptance={} source=1 dest: 1}, { cond=(NOT p0), acceptance={} source=1 dest: 2}, { cond=(AND p0 (NOT p1)), acceptance={} source=1 dest: 3}], [{ cond=true, acceptance={0} source=2 dest: 2}], [{ cond=(NOT p1), acceptance={0} source=3 dest: 3}]], initial=0, aps=[p0:(AND (GEQ s4 1) (GEQ s10 1)), p1:(OR (LT s2 1) (LT s12 1))], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, no-univ-branch, stutter-sensitive, very-weak, weak, inherently-weak], stateDesc=[null, null, null, null][false, false, false, false]]
Entered a terminal (fully accepting) state of product in 1 steps with 0 reset in 0 ms.
FORMULA HypertorusGrid-PT-d2k1p8b00-LTLFireability-05 FALSE TECHNIQUES STUTTER_TEST
Treatment of property HypertorusGrid-PT-d2k1p8b00-LTLFireability-05 finished in 287 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202303021504/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X((F(G((p0||X(F(p1)))))||G(p2))))'
Support contains 5 out of 13 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 13/13 places, 16/16 transitions.
Applied a total of 0 rules in 1 ms. Remains 13 /13 variables (removed 0) and now considering 16/16 (removed 0) transitions.
[2023-03-21 19:55:12] [INFO ] Invariant cache hit.
[2023-03-21 19:55:12] [INFO ] Implicit Places using invariants in 46 ms returned []
[2023-03-21 19:55:12] [INFO ] Invariant cache hit.
[2023-03-21 19:55:12] [INFO ] Implicit Places using invariants and state equation in 46 ms returned []
Implicit Place search using SMT with State Equation took 97 ms to find 0 implicit places.
[2023-03-21 19:55:12] [INFO ] Invariant cache hit.
[2023-03-21 19:55:12] [INFO ] Dead Transitions using invariants and state equation in 28 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 128 ms. Remains : 13/13 places, 16/16 transitions.
Stuttering acceptance computed with spot in 173 ms :[(AND (NOT p2) (NOT p0) (NOT p1)), (AND (NOT p0) (NOT p1)), (AND (NOT p0) (NOT p1)), (AND (NOT p2) (NOT p0) (NOT p1))]
Running random walk in product with property : HypertorusGrid-PT-d2k1p8b00-LTLFireability-06 automaton TGBA Formula[mat=[[{ cond=p2, acceptance={} source=0 dest: 0}, { cond=(NOT p2), acceptance={} source=0 dest: 1}, { cond=(AND (NOT p2) (NOT p0) (NOT p1)), acceptance={} source=0 dest: 2}], [{ cond=true, acceptance={} source=1 dest: 1}, { cond=(AND (NOT p0) (NOT p1)), acceptance={} source=1 dest: 2}], [{ cond=(AND p0 (NOT p1)), acceptance={} source=2 dest: 2}, { cond=(AND (NOT p0) (NOT p1)), acceptance={0} source=2 dest: 2}], [{ cond=true, acceptance={} source=3 dest: 0}]], initial=3, aps=[p2:(AND (GEQ s1 1) (GEQ s7 1)), p0:(AND (GEQ s4 1) (GEQ s5 1)), p1:(AND (GEQ s4 1) (GEQ s9 1))], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, no-univ-branch, stutter-sensitive], stateDesc=[null, null, null, null][false, false, false, false]]
Product exploration explored 100000 steps with 5988 reset in 134 ms.
Stack based approach found an accepted trace after 152 steps with 7 reset with depth 9 and stack size 9 in 1 ms.
FORMULA HypertorusGrid-PT-d2k1p8b00-LTLFireability-06 FALSE TECHNIQUES STACK_TEST
Treatment of property HypertorusGrid-PT-d2k1p8b00-LTLFireability-06 finished in 465 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202303021504/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(F(!p0))'
Support contains 2 out of 13 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 13/13 places, 16/16 transitions.
Applied a total of 0 rules in 5 ms. Remains 13 /13 variables (removed 0) and now considering 16/16 (removed 0) transitions.
[2023-03-21 19:55:13] [INFO ] Invariant cache hit.
[2023-03-21 19:55:13] [INFO ] Implicit Places using invariants in 42 ms returned [4]
Discarding 1 places :
Implicit Place search using SMT only with invariants took 44 ms to find 1 implicit places.
Starting structural reductions in SI_LTL mode, iteration 1 : 12/13 places, 16/16 transitions.
Performed 3 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 0 with 3 Pre rules applied. Total rules applied 0 place count 12 transition count 13
Deduced a syphon composed of 3 places in 0 ms
Reduce places removed 6 places and 0 transitions.
Iterating global reduction 0 with 9 rules applied. Total rules applied 9 place count 6 transition count 13
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 10 place count 5 transition count 10
Iterating global reduction 0 with 1 rules applied. Total rules applied 11 place count 5 transition count 10
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Graph (trivial) has 4 edges and 5 vertex of which 2 / 5 are part of one of the 1 SCC in 1 ms
Free SCC test removed 1 places
Iterating post reduction 0 with 3 rules applied. Total rules applied 14 place count 4 transition count 8
Ensure Unique test removed 3 transitions
Reduce isomorphic transitions removed 3 transitions.
Iterating post reduction 1 with 3 rules applied. Total rules applied 17 place count 4 transition count 5
Applied a total of 17 rules in 8 ms. Remains 4 /12 variables (removed 8) and now considering 5/16 (removed 11) transitions.
// Phase 1: matrix 5 rows 4 cols
[2023-03-21 19:55:13] [INFO ] Computed 2 place invariants in 1 ms
[2023-03-21 19:55:13] [INFO ] Implicit Places using invariants in 17 ms returned []
[2023-03-21 19:55:13] [INFO ] Invariant cache hit.
[2023-03-21 19:55:13] [INFO ] Implicit Places using invariants and state equation in 19 ms returned []
Implicit Place search using SMT with State Equation took 38 ms to find 0 implicit places.
Starting structural reductions in SI_LTL mode, iteration 2 : 4/13 places, 5/16 transitions.
Finished structural reductions in SI_LTL mode , in 2 iterations and 95 ms. Remains : 4/13 places, 5/16 transitions.
Stuttering acceptance computed with spot in 36 ms :[p0]
Running random walk in product with property : HypertorusGrid-PT-d2k1p8b00-LTLFireability-08 automaton TGBA Formula[mat=[[{ cond=p0, acceptance={0} source=0 dest: 0}]], initial=0, aps=[p0:(AND (GEQ s0 1) (GEQ s3 1))], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, colored, deterministic, no-univ-branch, unambiguous, semi-deterministic, stutter-invariant, very-weak, weak, inherently-weak], stateDesc=[null][true]]
Stuttering criterion allowed to conclude after 0 steps with 0 reset in 0 ms.
FORMULA HypertorusGrid-PT-d2k1p8b00-LTLFireability-08 FALSE TECHNIQUES STUTTER_TEST
Treatment of property HypertorusGrid-PT-d2k1p8b00-LTLFireability-08 finished in 149 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202303021504/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X((G((F(p1)||(!p2&&X(G((G(!p4)||p3))))))||p0)))'
Support contains 5 out of 13 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 13/13 places, 16/16 transitions.
Applied a total of 0 rules in 0 ms. Remains 13 /13 variables (removed 0) and now considering 16/16 (removed 0) transitions.
// Phase 1: matrix 16 rows 13 cols
[2023-03-21 19:55:13] [INFO ] Computed 6 place invariants in 1 ms
[2023-03-21 19:55:13] [INFO ] Implicit Places using invariants in 26 ms returned []
[2023-03-21 19:55:13] [INFO ] Invariant cache hit.
[2023-03-21 19:55:13] [INFO ] Implicit Places using invariants and state equation in 30 ms returned []
Implicit Place search using SMT with State Equation took 58 ms to find 0 implicit places.
[2023-03-21 19:55:13] [INFO ] Invariant cache hit.
[2023-03-21 19:55:13] [INFO ] Dead Transitions using invariants and state equation in 34 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 94 ms. Remains : 13/13 places, 16/16 transitions.
Stuttering acceptance computed with spot in 299 ms :[(OR (AND (NOT p0) (NOT p1) (NOT p3) p4) (AND (NOT p0) (NOT p1) p2)), (OR (AND (NOT p0) (NOT p1) (NOT p3) p4) (AND (NOT p0) (NOT p1) p2)), (NOT p1), (OR (AND (NOT p1) (NOT p3) p4) (AND (NOT p1) p2)), (AND (NOT p1) (NOT p2) (NOT p3) p4), (AND (NOT p1) (NOT p2) p4)]
Running random walk in product with property : HypertorusGrid-PT-d2k1p8b00-LTLFireability-10 automaton TGBA Formula[mat=[[{ cond=true, acceptance={} source=0 dest: 1}], [{ cond=(AND (NOT p0) (NOT p1) p2), acceptance={} source=1 dest: 2}, { cond=(NOT p0), acceptance={} source=1 dest: 3}, { cond=(AND (NOT p0) (NOT p1) (NOT p2)), acceptance={} source=1 dest: 4}], [{ cond=(NOT p1), acceptance={0} source=2 dest: 2}], [{ cond=(AND (NOT p1) p2), acceptance={} source=3 dest: 2}, { cond=true, acceptance={} source=3 dest: 3}, { cond=(AND (NOT p1) (NOT p2)), acceptance={} source=3 dest: 4}], [{ cond=(AND (NOT p1) (NOT p2) (NOT p3) p4), acceptance={} source=4 dest: 2}, { cond=(AND (NOT p1) p2 p3), acceptance={} source=4 dest: 4}, { cond=(AND (NOT p1) (NOT p3) (NOT p4)), acceptance={} source=4 dest: 5}], [{ cond=(AND (NOT p1) (NOT p2) p4), acceptance={} source=5 dest: 2}, { cond=(AND (NOT p1) (NOT p4)), acceptance={} source=5 dest: 5}]], initial=0, aps=[p0:(OR (LT s4 1) (LT s9 1)), p1:(OR (LT s3 1) (LT s8 1)), p2:(AND (GEQ s4 1) (GEQ s9 1)), p3:(OR (LT s4 1) (LT s9 1)), p4:(AND (GEQ s4 1) (GEQ s5 1))], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, no-univ-branch, stutter-sensitive, very-weak, weak, inherently-weak], stateDesc=[null, null, null, null, null, null][false, false, false, false, false, false]]
Product exploration explored 100000 steps with 28585 reset in 140 ms.
Stack based approach found an accepted trace after 104 steps with 30 reset with depth 7 and stack size 7 in 1 ms.
FORMULA HypertorusGrid-PT-d2k1p8b00-LTLFireability-10 FALSE TECHNIQUES STACK_TEST
Treatment of property HypertorusGrid-PT-d2k1p8b00-LTLFireability-10 finished in 560 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202303021504/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(F(G(!p0)))'
Support contains 2 out of 13 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 13/13 places, 16/16 transitions.
Applied a total of 0 rules in 1 ms. Remains 13 /13 variables (removed 0) and now considering 16/16 (removed 0) transitions.
[2023-03-21 19:55:13] [INFO ] Invariant cache hit.
[2023-03-21 19:55:13] [INFO ] Implicit Places using invariants in 34 ms returned [4]
Discarding 1 places :
Implicit Place search using SMT only with invariants took 35 ms to find 1 implicit places.
Starting structural reductions in SI_LTL mode, iteration 1 : 12/13 places, 16/16 transitions.
Performed 3 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 0 with 3 Pre rules applied. Total rules applied 0 place count 12 transition count 13
Deduced a syphon composed of 3 places in 0 ms
Reduce places removed 6 places and 0 transitions.
Iterating global reduction 0 with 9 rules applied. Total rules applied 9 place count 6 transition count 13
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 10 place count 5 transition count 10
Iterating global reduction 0 with 1 rules applied. Total rules applied 11 place count 5 transition count 10
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Graph (trivial) has 4 edges and 5 vertex of which 2 / 5 are part of one of the 1 SCC in 0 ms
Free SCC test removed 1 places
Iterating post reduction 0 with 3 rules applied. Total rules applied 14 place count 4 transition count 8
Ensure Unique test removed 3 transitions
Reduce isomorphic transitions removed 3 transitions.
Iterating post reduction 1 with 3 rules applied. Total rules applied 17 place count 4 transition count 5
Applied a total of 17 rules in 1 ms. Remains 4 /12 variables (removed 8) and now considering 5/16 (removed 11) transitions.
// Phase 1: matrix 5 rows 4 cols
[2023-03-21 19:55:13] [INFO ] Computed 2 place invariants in 0 ms
[2023-03-21 19:55:13] [INFO ] Implicit Places using invariants in 17 ms returned []
[2023-03-21 19:55:13] [INFO ] Invariant cache hit.
[2023-03-21 19:55:13] [INFO ] Implicit Places using invariants and state equation in 21 ms returned []
Implicit Place search using SMT with State Equation took 40 ms to find 0 implicit places.
Starting structural reductions in SI_LTL mode, iteration 2 : 4/13 places, 5/16 transitions.
Finished structural reductions in SI_LTL mode , in 2 iterations and 77 ms. Remains : 4/13 places, 5/16 transitions.
Stuttering acceptance computed with spot in 40 ms :[p0]
Running random walk in product with property : HypertorusGrid-PT-d2k1p8b00-LTLFireability-11 automaton TGBA Formula[mat=[[{ cond=(NOT p0), acceptance={} source=0 dest: 0}, { cond=p0, acceptance={0} source=0 dest: 0}]], initial=0, aps=[p0:(AND (GEQ s0 1) (GEQ s3 1))], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, complete, deterministic, no-univ-branch, unambiguous, semi-deterministic, stutter-invariant], stateDesc=[null][true]]
Stuttering criterion allowed to conclude after 0 steps with 0 reset in 0 ms.
FORMULA HypertorusGrid-PT-d2k1p8b00-LTLFireability-11 FALSE TECHNIQUES STUTTER_TEST
Treatment of property HypertorusGrid-PT-d2k1p8b00-LTLFireability-11 finished in 130 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202303021504/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(F(G(p0)))'
Support contains 2 out of 13 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 13/13 places, 16/16 transitions.
Applied a total of 0 rules in 1 ms. Remains 13 /13 variables (removed 0) and now considering 16/16 (removed 0) transitions.
// Phase 1: matrix 16 rows 13 cols
[2023-03-21 19:55:13] [INFO ] Computed 6 place invariants in 1 ms
[2023-03-21 19:55:13] [INFO ] Implicit Places using invariants in 25 ms returned []
[2023-03-21 19:55:13] [INFO ] Invariant cache hit.
[2023-03-21 19:55:14] [INFO ] Implicit Places using invariants and state equation in 38 ms returned []
Implicit Place search using SMT with State Equation took 65 ms to find 0 implicit places.
[2023-03-21 19:55:14] [INFO ] Redundant transitions in 0 ms returned []
[2023-03-21 19:55:14] [INFO ] Invariant cache hit.
[2023-03-21 19:55:14] [INFO ] Dead Transitions using invariants and state equation in 26 ms found 0 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 99 ms. Remains : 13/13 places, 16/16 transitions.
Stuttering acceptance computed with spot in 38 ms :[(NOT p0)]
Running random walk in product with property : HypertorusGrid-PT-d2k1p8b00-LTLFireability-12 automaton TGBA Formula[mat=[[{ cond=p0, acceptance={} source=0 dest: 0}, { cond=(NOT p0), acceptance={0} source=0 dest: 0}]], initial=0, aps=[p0:(AND (GEQ s4 1) (GEQ s10 1))], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, complete, deterministic, no-univ-branch, unambiguous, semi-deterministic, stutter-invariant], stateDesc=[null][true]]
Product exploration explored 100000 steps with 0 reset in 124 ms.
Stack based approach found an accepted trace after 9 steps with 0 reset with depth 10 and stack size 10 in 1 ms.
FORMULA HypertorusGrid-PT-d2k1p8b00-LTLFireability-12 FALSE TECHNIQUES STACK_TEST
Treatment of property HypertorusGrid-PT-d2k1p8b00-LTLFireability-12 finished in 275 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202303021504/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!((X(X((G(p0)||X(!p1))))&&F(!p2)))'
Support contains 6 out of 13 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 13/13 places, 16/16 transitions.
Applied a total of 0 rules in 0 ms. Remains 13 /13 variables (removed 0) and now considering 16/16 (removed 0) transitions.
[2023-03-21 19:55:14] [INFO ] Invariant cache hit.
[2023-03-21 19:55:14] [INFO ] Implicit Places using invariants in 23 ms returned []
[2023-03-21 19:55:14] [INFO ] Invariant cache hit.
[2023-03-21 19:55:14] [INFO ] Implicit Places using invariants and state equation in 27 ms returned []
Implicit Place search using SMT with State Equation took 53 ms to find 0 implicit places.
[2023-03-21 19:55:14] [INFO ] Invariant cache hit.
[2023-03-21 19:55:14] [INFO ] Dead Transitions using invariants and state equation in 39 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 93 ms. Remains : 13/13 places, 16/16 transitions.
Stuttering acceptance computed with spot in 331 ms :[(OR p2 (AND (NOT p0) p1)), (AND p1 (NOT p0)), p2, (AND p1 (NOT p0)), p1, (AND (NOT p0) p1), true, (NOT p0)]
Running random walk in product with property : HypertorusGrid-PT-d2k1p8b00-LTLFireability-14 automaton TGBA Formula[mat=[[{ cond=true, acceptance={} source=0 dest: 1}, { cond=p2, acceptance={} source=0 dest: 2}], [{ cond=true, acceptance={} source=1 dest: 3}], [{ cond=p2, acceptance={0} source=2 dest: 2}], [{ cond=(NOT p0), acceptance={} source=3 dest: 4}, { cond=p0, acceptance={} source=3 dest: 5}], [{ cond=p1, acceptance={} source=4 dest: 6}], [{ cond=(AND (NOT p0) p1), acceptance={} source=5 dest: 6}, { cond=(AND p0 p1), acceptance={} source=5 dest: 7}], [{ cond=true, acceptance={0} source=6 dest: 6}], [{ cond=(NOT p0), acceptance={} source=7 dest: 6}, { cond=p0, acceptance={} source=7 dest: 7}]], initial=0, aps=[p2:(OR (LT s2 1) (LT s12 1)), p0:(OR (LT s4 1) (LT s5 1) (LT s4 1) (LT s10 1)), p1:(AND (GEQ s4 1) (GEQ s9 1))], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, no-univ-branch, stutter-sensitive, very-weak, weak, inherently-weak], stateDesc=[null, null, null, null, null, null, null, null][false, false, false, false, false, false, false, false]]
Entered a terminal (fully accepting) state of product in 15 steps with 0 reset in 1 ms.
FORMULA HypertorusGrid-PT-d2k1p8b00-LTLFireability-14 FALSE TECHNIQUES STUTTER_TEST
Treatment of property HypertorusGrid-PT-d2k1p8b00-LTLFireability-14 finished in 448 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202303021504/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(G((X(p1)||p0)))'
Support contains 3 out of 13 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 13/13 places, 16/16 transitions.
Applied a total of 0 rules in 1 ms. Remains 13 /13 variables (removed 0) and now considering 16/16 (removed 0) transitions.
[2023-03-21 19:55:14] [INFO ] Invariant cache hit.
[2023-03-21 19:55:14] [INFO ] Implicit Places using invariants in 32 ms returned []
[2023-03-21 19:55:14] [INFO ] Invariant cache hit.
[2023-03-21 19:55:14] [INFO ] Implicit Places using invariants and state equation in 35 ms returned []
Implicit Place search using SMT with State Equation took 69 ms to find 0 implicit places.
[2023-03-21 19:55:14] [INFO ] Invariant cache hit.
[2023-03-21 19:55:14] [INFO ] Dead Transitions using invariants and state equation in 35 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 107 ms. Remains : 13/13 places, 16/16 transitions.
Stuttering acceptance computed with spot in 99 ms :[true, (AND (NOT p0) (NOT p1)), (NOT p1)]
Running random walk in product with property : HypertorusGrid-PT-d2k1p8b00-LTLFireability-15 automaton TGBA Formula[mat=[[{ cond=true, acceptance={0} source=0 dest: 0}], [{ cond=p0, acceptance={} source=1 dest: 1}, { cond=(NOT p0), acceptance={} source=1 dest: 2}], [{ cond=(NOT p1), acceptance={} source=2 dest: 0}, { cond=(AND p0 p1), acceptance={} source=2 dest: 1}, { cond=(AND (NOT p0) p1), acceptance={} source=2 dest: 2}]], initial=1, aps=[p0:(OR (LT s4 1) (LT s5 1)), p1:(OR (AND (GEQ s4 1) (GEQ s5 1)) (AND (OR (LT s4 1) (LT s6 1)) (GEQ s4 1) (GEQ s6 1) (GEQ s4 1) (GEQ s6 1)))], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, complete, deterministic, no-univ-branch, unambiguous, semi-deterministic, stutter-sensitive, terminal, weak, inherently-weak], stateDesc=[null, null, null][false, false, false]]
Entered a terminal (fully accepting) state of product in 19 steps with 0 reset in 0 ms.
FORMULA HypertorusGrid-PT-d2k1p8b00-LTLFireability-15 FALSE TECHNIQUES STUTTER_TEST
Treatment of property HypertorusGrid-PT-d2k1p8b00-LTLFireability-15 finished in 225 ms.
All properties solved by simple procedures.
Total runtime 5368 ms.

BK_STOP 1679428515791

--------------------
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
+ [[ LTLFireability = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution LTLFireability -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600
+ ulimit -s 65536
+ [[ -z '' ]]
+ export LTSMIN_MEM_SIZE=8589934592
+ LTSMIN_MEM_SIZE=8589934592
+ export PYTHONPATH=/home/mcc/BenchKit/itstools/pylibs
+ PYTHONPATH=/home/mcc/BenchKit/itstools/pylibs
+ export LD_LIBRARY_PATH=/home/mcc/BenchKit/itstools/pylibs:
+ LD_LIBRARY_PATH=/home/mcc/BenchKit/itstools/pylibs:
++ perl -pe 's/.*\.//g'
++ sed s/.jar//
++ ls /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202303021504.jar
+ VERSION=202303021504
+ echo 'Running Version 202303021504'
+ /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/its-tools -pnfolder /home/mcc/execution -examination LTLFireability -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600

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="HypertorusGrid-PT-d2k1p8b00"
export BK_EXAMINATION="LTLFireability"
export BK_TOOL="itstools"
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 itstools"
echo " Input is HypertorusGrid-PT-d2k1p8b00, examination is LTLFireability"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r229-tall-167856412700028"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/HypertorusGrid-PT-d2k1p8b00.tgz
mv HypertorusGrid-PT-d2k1p8b00 execution
cd execution
if [ "LTLFireability" = "ReachabilityDeadlock" ] || [ "LTLFireability" = "UpperBounds" ] || [ "LTLFireability" = "QuasiLiveness" ] || [ "LTLFireability" = "StableMarking" ] || [ "LTLFireability" = "Liveness" ] || [ "LTLFireability" = "OneSafe" ] || [ "LTLFireability" = "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 [ "LTLFireability" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "LTLFireability" != "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 "LTLFireability.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property LTLFireability.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "LTLFireability.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 '' LTLFireability.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "LTLFireability" = "ReachabilityDeadlock" ] || [ "LTLFireability" = "QuasiLiveness" ] || [ "LTLFireability" = "StableMarking" ] || [ "LTLFireability" = "Liveness" ] || [ "LTLFireability" = "OneSafe" ] ; then
echo "FORMULA_NAME LTLFireability"
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 ;