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.r359-smll-167891809000436.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2023-input.qcow2 cluster_size=65536 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
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=====================================================================
Generated by BenchKit 2-5348
Executing tool lolaxred
Input is SemanticWebServices-PT-S256P12, examination is LTLFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r359-smll-167891809000436
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 23M
-rw-r--r-- 1 mcc users 8.0K Feb 26 10:22 CTLCardinality.txt
-rw-r--r-- 1 mcc users 86K Feb 26 10:22 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.8K Feb 26 10:20 CTLFireability.txt
-rw-r--r-- 1 mcc users 50K Feb 26 10:20 CTLFireability.xml
-rw-r--r-- 1 mcc users 3.9K Feb 25 16:51 LTLCardinality.txt
-rw-r--r-- 1 mcc users 27K Feb 25 16:51 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.4K Feb 25 16:51 LTLFireability.txt
-rw-r--r-- 1 mcc users 16K Feb 25 16:51 LTLFireability.xml
-rw-r--r-- 1 mcc users 11K Feb 26 10:23 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 111K Feb 26 10:23 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 5.5K Feb 26 10:22 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 36K Feb 26 10:22 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.8K Feb 25 16:51 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.9K Feb 25 16:51 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 5 18:23 equiv_col
-rw-r--r-- 1 mcc users 8 Mar 5 18:23 instance
-rw-r--r-- 1 mcc users 6 Mar 5 18:23 iscolored
-rw-r--r-- 1 mcc users 23M Mar 5 18:23 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 SemanticWebServices-PT-S256P12-LTLFireability-00
FORMULA_NAME SemanticWebServices-PT-S256P12-LTLFireability-01
FORMULA_NAME SemanticWebServices-PT-S256P12-LTLFireability-02
FORMULA_NAME SemanticWebServices-PT-S256P12-LTLFireability-03
FORMULA_NAME SemanticWebServices-PT-S256P12-LTLFireability-04
FORMULA_NAME SemanticWebServices-PT-S256P12-LTLFireability-05
FORMULA_NAME SemanticWebServices-PT-S256P12-LTLFireability-06
FORMULA_NAME SemanticWebServices-PT-S256P12-LTLFireability-07
FORMULA_NAME SemanticWebServices-PT-S256P12-LTLFireability-08
FORMULA_NAME SemanticWebServices-PT-S256P12-LTLFireability-09
FORMULA_NAME SemanticWebServices-PT-S256P12-LTLFireability-10
FORMULA_NAME SemanticWebServices-PT-S256P12-LTLFireability-11
FORMULA_NAME SemanticWebServices-PT-S256P12-LTLFireability-12
FORMULA_NAME SemanticWebServices-PT-S256P12-LTLFireability-13
FORMULA_NAME SemanticWebServices-PT-S256P12-LTLFireability-14
FORMULA_NAME SemanticWebServices-PT-S256P12-LTLFireability-15

=== Now, execution of the tool begins

BK_START 1679111049411

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=lolaxred
BK_EXAMINATION=LTLFireability
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=SemanticWebServices-PT-S256P12
Applying reductions before tool lola
Invoking reducer
Running Version 202303021504
[2023-03-18 03:44:12] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, LTLFireability, -timeout, 360, -rebuildPNML]
[2023-03-18 03:44:12] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2023-03-18 03:44:13] [INFO ] Load time of PNML (sax parser for PT used): 1376 ms
[2023-03-18 03:44:13] [INFO ] Transformed 356 places.
[2023-03-18 03:44:13] [INFO ] Transformed 20464 transitions.
[2023-03-18 03:44:13] [INFO ] Parsed PT model containing 356 places and 20464 transitions and 190527 arcs in 1649 ms.
Parsed 16 properties from file /home/mcc/execution/LTLFireability.xml in 19 ms.
Working with output stream class java.io.PrintStream
Initial state reduction rules removed 3 formulas.
Deduced a syphon composed of 14 places in 42 ms
Reduce places removed 14 places and 8326 transitions.
Ensure Unique test removed 4477 transitions
Reduce redundant transitions removed 4477 transitions.
FORMULA SemanticWebServices-PT-S256P12-LTLFireability-00 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA SemanticWebServices-PT-S256P12-LTLFireability-05 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA SemanticWebServices-PT-S256P12-LTLFireability-06 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA SemanticWebServices-PT-S256P12-LTLFireability-08 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA SemanticWebServices-PT-S256P12-LTLFireability-12 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA SemanticWebServices-PT-S256P12-LTLFireability-13 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA SemanticWebServices-PT-S256P12-LTLFireability-15 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA SemanticWebServices-PT-S256P12-LTLFireability-03 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA SemanticWebServices-PT-S256P12-LTLFireability-10 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Support contains 36 out of 342 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 342/342 places, 7661/7661 transitions.
Ensure Unique test removed 32 places
Reduce places removed 78 places and 0 transitions.
Ensure Unique test removed 1511 transitions
Reduce isomorphic transitions removed 1511 transitions.
Iterating post reduction 0 with 1589 rules applied. Total rules applied 1589 place count 264 transition count 6150
Discarding 27 places :
Symmetric choice reduction at 1 with 27 rule applications. Total rules 1616 place count 237 transition count 5160
Iterating global reduction 1 with 27 rules applied. Total rules applied 1643 place count 237 transition count 5160
Ensure Unique test removed 215 transitions
Reduce isomorphic transitions removed 215 transitions.
Iterating post reduction 1 with 215 rules applied. Total rules applied 1858 place count 237 transition count 4945
Discarding 8 places :
Symmetric choice reduction at 2 with 8 rule applications. Total rules 1866 place count 229 transition count 4937
Iterating global reduction 2 with 8 rules applied. Total rules applied 1874 place count 229 transition count 4937
Discarding 7 places :
Symmetric choice reduction at 2 with 7 rule applications. Total rules 1881 place count 222 transition count 4930
Iterating global reduction 2 with 7 rules applied. Total rules applied 1888 place count 222 transition count 4930
Discarding 6 places :
Symmetric choice reduction at 2 with 6 rule applications. Total rules 1894 place count 216 transition count 4924
Iterating global reduction 2 with 6 rules applied. Total rules applied 1900 place count 216 transition count 4924
Discarding 5 places :
Symmetric choice reduction at 2 with 5 rule applications. Total rules 1905 place count 211 transition count 4919
Iterating global reduction 2 with 5 rules applied. Total rules applied 1910 place count 211 transition count 4919
Ensure Unique test removed 5 transitions
Reduce isomorphic transitions removed 5 transitions.
Iterating post reduction 2 with 5 rules applied. Total rules applied 1915 place count 211 transition count 4914
Drop transitions removed 843 transitions
Redundant transition composition rules discarded 843 transitions
Iterating global reduction 3 with 843 rules applied. Total rules applied 2758 place count 211 transition count 4071
Reduce places removed 11 places and 0 transitions.
Ensure Unique test removed 492 transitions
Reduce isomorphic transitions removed 492 transitions.
Iterating post reduction 3 with 503 rules applied. Total rules applied 3261 place count 200 transition count 3579
Discarding 12 places :
Symmetric choice reduction at 4 with 12 rule applications. Total rules 3273 place count 188 transition count 3199
Iterating global reduction 4 with 12 rules applied. Total rules applied 3285 place count 188 transition count 3199
Ensure Unique test removed 558 transitions
Reduce isomorphic transitions removed 558 transitions.
Iterating post reduction 4 with 558 rules applied. Total rules applied 3843 place count 188 transition count 2641
Drop transitions removed 190 transitions
Redundant transition composition rules discarded 190 transitions
Iterating global reduction 5 with 190 rules applied. Total rules applied 4033 place count 188 transition count 2451
Reduce places removed 4 places and 0 transitions.
Ensure Unique test removed 218 transitions
Reduce isomorphic transitions removed 218 transitions.
Iterating post reduction 5 with 222 rules applied. Total rules applied 4255 place count 184 transition count 2233
Drop transitions removed 194 transitions
Redundant transition composition rules discarded 194 transitions
Iterating global reduction 6 with 194 rules applied. Total rules applied 4449 place count 184 transition count 2039
Reduce places removed 10 places and 0 transitions.
Ensure Unique test removed 295 transitions
Reduce isomorphic transitions removed 295 transitions.
Iterating post reduction 6 with 305 rules applied. Total rules applied 4754 place count 174 transition count 1744
Discarding 2 places :
Symmetric choice reduction at 7 with 2 rule applications. Total rules 4756 place count 172 transition count 1716
Iterating global reduction 7 with 2 rules applied. Total rules applied 4758 place count 172 transition count 1716
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 7 with 2 rules applied. Total rules applied 4760 place count 172 transition count 1714
Discarding 1 places :
Symmetric choice reduction at 8 with 1 rule applications. Total rules 4761 place count 171 transition count 1690
Iterating global reduction 8 with 1 rules applied. Total rules applied 4762 place count 171 transition count 1690
Ensure Unique test removed 4 transitions
Reduce isomorphic transitions removed 4 transitions.
Iterating post reduction 8 with 4 rules applied. Total rules applied 4766 place count 171 transition count 1686
Drop transitions removed 124 transitions
Redundant transition composition rules discarded 124 transitions
Iterating global reduction 9 with 124 rules applied. Total rules applied 4890 place count 171 transition count 1562
Reduce places removed 4 places and 0 transitions.
Ensure Unique test removed 8 transitions
Reduce isomorphic transitions removed 8 transitions.
Iterating post reduction 9 with 12 rules applied. Total rules applied 4902 place count 167 transition count 1554
Discarding 1 places :
Symmetric choice reduction at 10 with 1 rule applications. Total rules 4903 place count 166 transition count 1552
Iterating global reduction 10 with 1 rules applied. Total rules applied 4904 place count 166 transition count 1552
Ensure Unique test removed 3 transitions
Reduce isomorphic transitions removed 3 transitions.
Iterating post reduction 10 with 3 rules applied. Total rules applied 4907 place count 166 transition count 1549
Drop transitions removed 50 transitions
Redundant transition composition rules discarded 50 transitions
Iterating global reduction 11 with 50 rules applied. Total rules applied 4957 place count 166 transition count 1499
Reduce places removed 2 places and 0 transitions.
Ensure Unique test removed 4 transitions
Reduce isomorphic transitions removed 4 transitions.
Iterating post reduction 11 with 6 rules applied. Total rules applied 4963 place count 164 transition count 1495
Drop transitions removed 16 transitions
Redundant transition composition rules discarded 16 transitions
Iterating global reduction 12 with 16 rules applied. Total rules applied 4979 place count 164 transition count 1479
Applied a total of 4979 rules in 401 ms. Remains 164 /342 variables (removed 178) and now considering 1479/7661 (removed 6182) transitions.
[2023-03-18 03:44:14] [INFO ] Flow matrix only has 615 transitions (discarded 864 similar events)
Normalized transition count is 613 out of 615 initially.
// Phase 1: matrix 613 rows 164 cols
[2023-03-18 03:44:14] [INFO ] Computed 1 place invariants in 31 ms
[2023-03-18 03:44:15] [INFO ] Implicit Places using invariants in 672 ms returned []
[2023-03-18 03:44:15] [INFO ] Flow matrix only has 615 transitions (discarded 864 similar events)
[2023-03-18 03:44:15] [INFO ] Invariant cache hit.
[2023-03-18 03:44:15] [INFO ] State equation strengthened by 287 read => feed constraints.
[2023-03-18 03:44:16] [INFO ] Implicit Places using invariants and state equation in 754 ms returned []
Implicit Place search using SMT with State Equation took 1469 ms to find 0 implicit places.
[2023-03-18 03:44:16] [INFO ] Flow matrix only has 615 transitions (discarded 864 similar events)
[2023-03-18 03:44:16] [INFO ] Invariant cache hit.
[2023-03-18 03:44:16] [INFO ] Dead Transitions using invariants and state equation in 607 ms found 0 transitions.
Starting structural reductions in LTL mode, iteration 1 : 164/342 places, 1479/7661 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 2481 ms. Remains : 164/342 places, 1479/7661 transitions.
Support contains 36 out of 164 places after structural reductions.
[2023-03-18 03:44:17] [INFO ] Flatten gal took : 147 ms
[2023-03-18 03:44:17] [INFO ] Flatten gal took : 123 ms
[2023-03-18 03:44:17] [INFO ] Input system was already deterministic with 1479 transitions.
Finished random walk after 1235 steps, including 0 resets, run visited all 10 properties in 135 ms. (steps per millisecond=9 )
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((p0 U G(p1))))'
Support contains 11 out of 164 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 164/164 places, 1479/1479 transitions.
Reduce places removed 10 places and 0 transitions.
Ensure Unique test removed 63 transitions
Reduce isomorphic transitions removed 63 transitions.
Iterating post reduction 0 with 73 rules applied. Total rules applied 73 place count 154 transition count 1416
Discarding 4 places :
Symmetric choice reduction at 1 with 4 rule applications. Total rules 77 place count 150 transition count 1304
Iterating global reduction 1 with 4 rules applied. Total rules applied 81 place count 150 transition count 1304
Ensure Unique test removed 40 transitions
Reduce isomorphic transitions removed 40 transitions.
Iterating post reduction 1 with 40 rules applied. Total rules applied 121 place count 150 transition count 1264
Drop transitions removed 45 transitions
Redundant transition composition rules discarded 45 transitions
Iterating global reduction 2 with 45 rules applied. Total rules applied 166 place count 150 transition count 1219
Reduce places removed 1 places and 0 transitions.
Ensure Unique test removed 5 transitions
Reduce isomorphic transitions removed 5 transitions.
Iterating post reduction 2 with 6 rules applied. Total rules applied 172 place count 149 transition count 1214
Drop transitions removed 9 transitions
Redundant transition composition rules discarded 9 transitions
Iterating global reduction 3 with 9 rules applied. Total rules applied 181 place count 149 transition count 1205
Reduce places removed 2 places and 0 transitions.
Ensure Unique test removed 6 transitions
Reduce isomorphic transitions removed 6 transitions.
Iterating post reduction 3 with 8 rules applied. Total rules applied 189 place count 147 transition count 1199
Drop transitions removed 16 transitions
Redundant transition composition rules discarded 16 transitions
Iterating global reduction 4 with 16 rules applied. Total rules applied 205 place count 147 transition count 1183
Reduce places removed 3 places and 0 transitions.
Ensure Unique test removed 30 transitions
Reduce isomorphic transitions removed 30 transitions.
Iterating post reduction 4 with 33 rules applied. Total rules applied 238 place count 144 transition count 1153
Drop transitions removed 8 transitions
Redundant transition composition rules discarded 8 transitions
Iterating global reduction 5 with 8 rules applied. Total rules applied 246 place count 144 transition count 1145
Reduce places removed 4 places and 0 transitions.
Ensure Unique test removed 13 transitions
Reduce isomorphic transitions removed 13 transitions.
Iterating post reduction 5 with 17 rules applied. Total rules applied 263 place count 140 transition count 1132
Discarding 1 places :
Symmetric choice reduction at 6 with 1 rule applications. Total rules 264 place count 139 transition count 1130
Iterating global reduction 6 with 1 rules applied. Total rules applied 265 place count 139 transition count 1130
Ensure Unique test removed 3 transitions
Reduce isomorphic transitions removed 3 transitions.
Iterating post reduction 6 with 3 rules applied. Total rules applied 268 place count 139 transition count 1127
Drop transitions removed 6 transitions
Redundant transition composition rules discarded 6 transitions
Iterating global reduction 7 with 6 rules applied. Total rules applied 274 place count 139 transition count 1121
Discarding 1 places :
Symmetric choice reduction at 7 with 1 rule applications. Total rules 275 place count 138 transition count 1109
Iterating global reduction 7 with 1 rules applied. Total rules applied 276 place count 138 transition count 1109
Ensure Unique test removed 10 transitions
Reduce isomorphic transitions removed 10 transitions.
Iterating post reduction 7 with 10 rules applied. Total rules applied 286 place count 138 transition count 1099
Applied a total of 286 rules in 49 ms. Remains 138 /164 variables (removed 26) and now considering 1099/1479 (removed 380) transitions.
[2023-03-18 03:44:17] [INFO ] Flow matrix only has 458 transitions (discarded 641 similar events)
Normalized transition count is 456 out of 458 initially.
// Phase 1: matrix 456 rows 138 cols
[2023-03-18 03:44:17] [INFO ] Computed 1 place invariants in 3 ms
[2023-03-18 03:44:17] [INFO ] Implicit Places using invariants in 166 ms returned []
[2023-03-18 03:44:17] [INFO ] Flow matrix only has 458 transitions (discarded 641 similar events)
[2023-03-18 03:44:17] [INFO ] Invariant cache hit.
[2023-03-18 03:44:18] [INFO ] State equation strengthened by 205 read => feed constraints.
[2023-03-18 03:44:18] [INFO ] Implicit Places using invariants and state equation in 530 ms returned []
Implicit Place search using SMT with State Equation took 700 ms to find 0 implicit places.
[2023-03-18 03:44:18] [INFO ] Flow matrix only has 458 transitions (discarded 641 similar events)
[2023-03-18 03:44:18] [INFO ] Invariant cache hit.
[2023-03-18 03:44:19] [INFO ] Dead Transitions using invariants and state equation in 489 ms found 0 transitions.
Starting structural reductions in LTL mode, iteration 1 : 138/164 places, 1099/1479 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 1246 ms. Remains : 138/164 places, 1099/1479 transitions.
Stuttering acceptance computed with spot in 299 ms :[(NOT p1), (NOT p1), true, (NOT p1)]
Running random walk in product with property : SemanticWebServices-PT-S256P12-LTLFireability-01 automaton TGBA Formula[mat=[[{ cond=true, acceptance={} source=0 dest: 1}], [{ cond=(AND p1 p0), acceptance={} source=1 dest: 1}, { cond=(AND (NOT p1) p0), acceptance={0} source=1 dest: 1}, { cond=(AND (NOT p1) (NOT p0)), acceptance={} source=1 dest: 2}, { cond=(AND p1 (NOT p0)), acceptance={} source=1 dest: 3}], [{ cond=true, acceptance={0} source=2 dest: 2}], [{ cond=(NOT p1), acceptance={} source=3 dest: 2}, { cond=p1, acceptance={} source=3 dest: 3}]], initial=0, aps=[p1:(AND (GEQ s45 1) (GEQ s73 1) (GEQ s87 1) (GEQ s99 1)), p0:(AND (NOT (AND (GEQ s23 1) (GEQ s67 1) (GEQ s121 1))) (GEQ s24 1) (GEQ s68 1) (GEQ s111 1) (G...], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, complete, deterministic, no-univ-branch, unambiguous, semi-deterministic, stutter-sensitive], stateDesc=[null, null, null, null][false, false, false, false]]
Stuttering criterion allowed to conclude after 0 steps with 0 reset in 2 ms.
FORMULA SemanticWebServices-PT-S256P12-LTLFireability-01 FALSE TECHNIQUES STUTTER_TEST
Treatment of property SemanticWebServices-PT-S256P12-LTLFireability-01 finished in 1628 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' '!(!(!p0 U (p0 U X(!F(p0)))))'
Support contains 4 out of 164 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 164/164 places, 1479/1479 transitions.
Graph (complete) has 1689 edges and 164 vertex of which 147 are kept as prefixes of interest. Removing 17 places using SCC suffix rule.12 ms
Discarding 17 places :
Also discarding 3 output transitions
Drop transitions removed 3 transitions
Reduce places removed 1 places and 1 transitions.
Ensure Unique test removed 70 transitions
Reduce isomorphic transitions removed 70 transitions.
Iterating post reduction 0 with 70 rules applied. Total rules applied 71 place count 146 transition count 1405
Discarding 7 places :
Symmetric choice reduction at 1 with 7 rule applications. Total rules 78 place count 139 transition count 1193
Iterating global reduction 1 with 7 rules applied. Total rules applied 85 place count 139 transition count 1193
Ensure Unique test removed 54 transitions
Reduce isomorphic transitions removed 54 transitions.
Iterating post reduction 1 with 54 rules applied. Total rules applied 139 place count 139 transition count 1139
Drop transitions removed 69 transitions
Redundant transition composition rules discarded 69 transitions
Iterating global reduction 2 with 69 rules applied. Total rules applied 208 place count 139 transition count 1070
Reduce places removed 2 places and 0 transitions.
Ensure Unique test removed 5 transitions
Reduce isomorphic transitions removed 5 transitions.
Graph (complete) has 1468 edges and 137 vertex of which 136 are kept as prefixes of interest. Removing 1 places using SCC suffix rule.4 ms
Discarding 1 places :
Also discarding 1 output transitions
Drop transitions removed 1 transitions
Iterating post reduction 2 with 8 rules applied. Total rules applied 216 place count 136 transition count 1064
Discarding 1 places :
Symmetric choice reduction at 3 with 1 rule applications. Total rules 217 place count 135 transition count 1063
Iterating global reduction 3 with 1 rules applied. Total rules applied 218 place count 135 transition count 1063
Discarding 2 places :
Symmetric choice reduction at 3 with 2 rule applications. Total rules 220 place count 133 transition count 1061
Iterating global reduction 3 with 2 rules applied. Total rules applied 222 place count 133 transition count 1061
Discarding 2 places :
Symmetric choice reduction at 3 with 2 rule applications. Total rules 224 place count 131 transition count 1059
Iterating global reduction 3 with 2 rules applied. Total rules applied 226 place count 131 transition count 1059
Discarding 2 places :
Symmetric choice reduction at 3 with 2 rule applications. Total rules 228 place count 129 transition count 1057
Iterating global reduction 3 with 2 rules applied. Total rules applied 230 place count 129 transition count 1057
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 3 with 2 rules applied. Total rules applied 232 place count 129 transition count 1055
Drop transitions removed 10 transitions
Redundant transition composition rules discarded 10 transitions
Iterating global reduction 4 with 10 rules applied. Total rules applied 242 place count 129 transition count 1045
Reduce places removed 3 places and 0 transitions.
Ensure Unique test removed 6 transitions
Reduce isomorphic transitions removed 6 transitions.
Iterating post reduction 4 with 9 rules applied. Total rules applied 251 place count 126 transition count 1039
Drop transitions removed 13 transitions
Redundant transition composition rules discarded 13 transitions
Iterating global reduction 5 with 13 rules applied. Total rules applied 264 place count 126 transition count 1026
Reduce places removed 4 places and 0 transitions.
Ensure Unique test removed 30 transitions
Reduce isomorphic transitions removed 30 transitions.
Iterating post reduction 5 with 34 rules applied. Total rules applied 298 place count 122 transition count 996
Discarding 1 places :
Symmetric choice reduction at 6 with 1 rule applications. Total rules 299 place count 121 transition count 995
Iterating global reduction 6 with 1 rules applied. Total rules applied 300 place count 121 transition count 995
Discarding 2 places :
Symmetric choice reduction at 6 with 2 rule applications. Total rules 302 place count 119 transition count 993
Iterating global reduction 6 with 2 rules applied. Total rules applied 304 place count 119 transition count 993
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 6 with 2 rules applied. Total rules applied 306 place count 119 transition count 991
Drop transitions removed 33 transitions
Redundant transition composition rules discarded 33 transitions
Iterating global reduction 7 with 33 rules applied. Total rules applied 339 place count 119 transition count 958
Reduce places removed 5 places and 0 transitions.
Ensure Unique test removed 12 transitions
Reduce isomorphic transitions removed 12 transitions.
Iterating post reduction 7 with 17 rules applied. Total rules applied 356 place count 114 transition count 946
Discarding 1 places :
Symmetric choice reduction at 8 with 1 rule applications. Total rules 357 place count 113 transition count 944
Iterating global reduction 8 with 1 rules applied. Total rules applied 358 place count 113 transition count 944
Ensure Unique test removed 3 transitions
Reduce isomorphic transitions removed 3 transitions.
Iterating post reduction 8 with 3 rules applied. Total rules applied 361 place count 113 transition count 941
Drop transitions removed 11 transitions
Redundant transition composition rules discarded 11 transitions
Iterating global reduction 9 with 11 rules applied. Total rules applied 372 place count 113 transition count 930
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 9 with 1 rules applied. Total rules applied 373 place count 112 transition count 930
Drop transitions removed 1 transitions
Redundant transition composition rules discarded 1 transitions
Iterating global reduction 10 with 1 rules applied. Total rules applied 374 place count 112 transition count 929
Applied a total of 374 rules in 421 ms. Remains 112 /164 variables (removed 52) and now considering 929/1479 (removed 550) transitions.
[2023-03-18 03:44:19] [INFO ] Flow matrix only has 412 transitions (discarded 517 similar events)
Normalized transition count is 410 out of 412 initially.
// Phase 1: matrix 410 rows 112 cols
[2023-03-18 03:44:19] [INFO ] Computed 0 place invariants in 2 ms
[2023-03-18 03:44:19] [INFO ] Implicit Places using invariants in 164 ms returned []
[2023-03-18 03:44:19] [INFO ] Flow matrix only has 412 transitions (discarded 517 similar events)
[2023-03-18 03:44:19] [INFO ] Invariant cache hit.
[2023-03-18 03:44:20] [INFO ] State equation strengthened by 171 read => feed constraints.
[2023-03-18 03:44:20] [INFO ] Implicit Places using invariants and state equation in 456 ms returned []
Implicit Place search using SMT with State Equation took 625 ms to find 0 implicit places.
[2023-03-18 03:44:21] [INFO ] Redundant transitions in 1483 ms returned [17, 22, 24, 28, 30, 32, 37, 38, 39, 45, 47, 48, 54, 56, 64, 66, 67, 68, 69, 70, 72, 73, 78, 80, 83, 84, 85, 86, 87, 92, 93, 95, 96, 97, 99, 102, 106, 109, 111, 112, 122, 124, 126, 133, 135, 136, 140, 141, 142, 144, 146, 147, 150, 151, 152, 154, 155, 157, 158, 161, 163, 165, 167, 169, 170, 171, 172, 176, 182, 183, 184, 197, 206, 207, 211, 214, 215, 216, 217, 221, 222, 223, 226, 228, 231, 232, 233, 239, 247, 274, 276, 295, 298, 305, 313, 314, 315, 316, 323, 325, 326, 327, 328, 329, 330, 335, 337, 339, 340, 341, 342, 343, 347, 350, 352, 353, 357, 378, 380, 385, 386, 387, 388, 389, 390, 391, 392, 396, 399, 400, 401, 405, 406, 407, 412, 464, 471, 472, 475, 478, 482, 487, 492, 497, 499, 500, 502, 503, 506, 508, 509, 512, 515, 518, 519, 522, 525, 529, 538, 539, 540, 541, 550, 551, 553, 554, 555, 557, 558, 560, 561, 564, 565, 567, 568, 570, 571, 574, 576, 577, 580, 583, 599, 600, 601, 602, 603, 604, 617, 618, 619, 621, 622, 623, 624, 626, 627, 628, 630, 631, 633, 634, 637, 654, 655, 656, 657, 671, 672, 673, 674, 676, 677, 687, 698, 709, 710, 711, 712, 713, 714, 715, 716, 717, 718, 719, 720, 721, 722, 723, 724, 725, 726, 727, 729, 730, 731, 732, 733, 734, 735, 736, 737, 738, 739, 744, 745, 746, 747, 748, 749, 750, 756, 757, 758, 759, 760, 761, 762, 763, 767, 768, 769, 770, 771, 772, 773, 774, 775, 776, 780, 781, 783, 784, 785, 786, 787, 788, 794, 795, 796, 797, 799, 802, 803, 804, 807, 808, 811, 812, 813, 816, 817, 818, 819, 823, 825, 827, 828, 830, 831, 832, 835, 837, 840, 842, 844, 845, 846, 848, 851, 854, 857, 858, 863]
Found 315 redundant transitions using SMT.
Drop transitions removed 315 transitions
Redundant transitions reduction (with SMT) removed 315 transitions.
[2023-03-18 03:44:21] [INFO ] Flow matrix only has 269 transitions (discarded 345 similar events)
// Phase 1: matrix 269 rows 112 cols
[2023-03-18 03:44:21] [INFO ] Computed 0 place invariants in 5 ms
[2023-03-18 03:44:22] [INFO ] Dead Transitions using invariants and state equation in 467 ms found 0 transitions.
Starting structural reductions in SI_LTL mode, iteration 1 : 112/164 places, 614/1479 transitions.
Graph (complete) has 1132 edges and 112 vertex of which 110 are kept as prefixes of interest. Removing 2 places using SCC suffix rule.2 ms
Discarding 2 places :
Also discarding 0 output transitions
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 0 with 2 rules applied. Total rules applied 3 place count 110 transition count 612
Discarding 3 places :
Symmetric choice reduction at 1 with 3 rule applications. Total rules 6 place count 107 transition count 595
Iterating global reduction 1 with 3 rules applied. Total rules applied 9 place count 107 transition count 595
Ensure Unique test removed 10 transitions
Reduce isomorphic transitions removed 10 transitions.
Iterating post reduction 1 with 10 rules applied. Total rules applied 19 place count 107 transition count 585
Drop transitions removed 6 transitions
Redundant transition composition rules discarded 6 transitions
Iterating global reduction 2 with 6 rules applied. Total rules applied 25 place count 107 transition count 579
Reduce places removed 2 places and 0 transitions.
Ensure Unique test removed 3 transitions
Reduce isomorphic transitions removed 3 transitions.
Iterating post reduction 2 with 5 rules applied. Total rules applied 30 place count 105 transition count 576
Applied a total of 30 rules in 43 ms. Remains 105 /112 variables (removed 7) and now considering 576/614 (removed 38) transitions.
[2023-03-18 03:44:22] [INFO ] Flow matrix only has 254 transitions (discarded 322 similar events)
// Phase 1: matrix 254 rows 105 cols
[2023-03-18 03:44:22] [INFO ] Computed 0 place invariants in 1 ms
[2023-03-18 03:44:22] [INFO ] Implicit Places using invariants in 117 ms returned []
[2023-03-18 03:44:22] [INFO ] Flow matrix only has 254 transitions (discarded 322 similar events)
[2023-03-18 03:44:22] [INFO ] Invariant cache hit.
[2023-03-18 03:44:22] [INFO ] State equation strengthened by 111 read => feed constraints.
[2023-03-18 03:44:22] [INFO ] Implicit Places using invariants and state equation in 320 ms returned []
Implicit Place search using SMT with State Equation took 440 ms to find 0 implicit places.
Starting structural reductions in SI_LTL mode, iteration 2 : 105/164 places, 576/1479 transitions.
Finished structural reductions in SI_LTL mode , in 2 iterations and 3488 ms. Remains : 105/164 places, 576/1479 transitions.
Stuttering acceptance computed with spot in 98 ms :[(NOT p0), (NOT p0), (NOT p0)]
Running random walk in product with property : SemanticWebServices-PT-S256P12-LTLFireability-02 automaton TGBA Formula[mat=[[{ cond=p0, acceptance={} source=0 dest: 0}, { cond=(NOT p0), acceptance={} source=0 dest: 1}], [{ cond=(NOT p0), acceptance={0} source=1 dest: 1}], [{ cond=p0, acceptance={0} source=2 dest: 0}, { cond=(NOT p0), acceptance={0} source=2 dest: 2}]], initial=2, aps=[p0:(AND (GEQ s34 1) (GEQ s50 1) (GEQ s53 1) (GEQ s67 1))], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, deterministic, no-univ-branch, unambiguous, semi-deterministic, stutter-invariant, very-weak, weak, inherently-weak], stateDesc=[null, null, null][true, true, true]]
Stuttering criterion allowed to conclude after 0 steps with 0 reset in 0 ms.
FORMULA SemanticWebServices-PT-S256P12-LTLFireability-02 FALSE TECHNIQUES STUTTER_TEST
Treatment of property SemanticWebServices-PT-S256P12-LTLFireability-02 finished in 3603 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(p0)))'
Support contains 4 out of 164 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 164/164 places, 1479/1479 transitions.
Reduce places removed 7 places and 0 transitions.
Ensure Unique test removed 45 transitions
Reduce isomorphic transitions removed 45 transitions.
Iterating post reduction 0 with 52 rules applied. Total rules applied 52 place count 157 transition count 1434
Discarding 7 places :
Symmetric choice reduction at 1 with 7 rule applications. Total rules 59 place count 150 transition count 1222
Iterating global reduction 1 with 7 rules applied. Total rules applied 66 place count 150 transition count 1222
Ensure Unique test removed 55 transitions
Reduce isomorphic transitions removed 55 transitions.
Iterating post reduction 1 with 55 rules applied. Total rules applied 121 place count 150 transition count 1167
Drop transitions removed 30 transitions
Redundant transition composition rules discarded 30 transitions
Iterating global reduction 2 with 30 rules applied. Total rules applied 151 place count 150 transition count 1137
Applied a total of 151 rules in 15 ms. Remains 150 /164 variables (removed 14) and now considering 1137/1479 (removed 342) transitions.
[2023-03-18 03:44:22] [INFO ] Flow matrix only has 539 transitions (discarded 598 similar events)
Normalized transition count is 537 out of 539 initially.
// Phase 1: matrix 537 rows 150 cols
[2023-03-18 03:44:22] [INFO ] Computed 1 place invariants in 7 ms
[2023-03-18 03:44:23] [INFO ] Implicit Places using invariants in 160 ms returned []
[2023-03-18 03:44:23] [INFO ] Flow matrix only has 539 transitions (discarded 598 similar events)
[2023-03-18 03:44:23] [INFO ] Invariant cache hit.
[2023-03-18 03:44:23] [INFO ] State equation strengthened by 250 read => feed constraints.
[2023-03-18 03:44:23] [INFO ] Implicit Places using invariants and state equation in 573 ms returned []
Implicit Place search using SMT with State Equation took 736 ms to find 0 implicit places.
[2023-03-18 03:44:23] [INFO ] Flow matrix only has 539 transitions (discarded 598 similar events)
[2023-03-18 03:44:23] [INFO ] Invariant cache hit.
[2023-03-18 03:44:24] [INFO ] Dead Transitions using invariants and state equation in 479 ms found 0 transitions.
Starting structural reductions in LTL mode, iteration 1 : 150/164 places, 1137/1479 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 1232 ms. Remains : 150/164 places, 1137/1479 transitions.
Stuttering acceptance computed with spot in 68 ms :[(NOT p0), (NOT p0)]
Running random walk in product with property : SemanticWebServices-PT-S256P12-LTLFireability-04 automaton TGBA Formula[mat=[[{ cond=true, acceptance={} source=0 dest: 1}], [{ cond=(NOT p0), acceptance={0} source=1 dest: 1}]], initial=0, aps=[p0:(AND (GEQ s25 1) (GEQ s31 1) (GEQ s104 1) (GEQ s114 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][false, false]]
Stuttering criterion allowed to conclude after 0 steps with 0 reset in 1 ms.
FORMULA SemanticWebServices-PT-S256P12-LTLFireability-04 FALSE TECHNIQUES STUTTER_TEST
Treatment of property SemanticWebServices-PT-S256P12-LTLFireability-04 finished in 1317 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 3 out of 164 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 164/164 places, 1479/1479 transitions.
Graph (complete) has 1689 edges and 164 vertex of which 149 are kept as prefixes of interest. Removing 15 places using SCC suffix rule.2 ms
Discarding 15 places :
Also discarding 3 output transitions
Drop transitions removed 3 transitions
Reduce places removed 1 places and 1 transitions.
Ensure Unique test removed 48 transitions
Reduce isomorphic transitions removed 48 transitions.
Iterating post reduction 0 with 48 rules applied. Total rules applied 49 place count 148 transition count 1427
Discarding 6 places :
Symmetric choice reduction at 1 with 6 rule applications. Total rules 55 place count 142 transition count 1231
Iterating global reduction 1 with 6 rules applied. Total rules applied 61 place count 142 transition count 1231
Ensure Unique test removed 32 transitions
Reduce isomorphic transitions removed 32 transitions.
Iterating post reduction 1 with 32 rules applied. Total rules applied 93 place count 142 transition count 1199
Drop transitions removed 41 transitions
Redundant transition composition rules discarded 41 transitions
Iterating global reduction 2 with 41 rules applied. Total rules applied 134 place count 142 transition count 1158
Reduce places removed 2 places and 0 transitions.
Ensure Unique test removed 5 transitions
Reduce isomorphic transitions removed 5 transitions.
Graph (complete) has 1502 edges and 140 vertex of which 139 are kept as prefixes of interest. Removing 1 places using SCC suffix rule.2 ms
Discarding 1 places :
Also discarding 1 output transitions
Drop transitions removed 1 transitions
Iterating post reduction 2 with 8 rules applied. Total rules applied 142 place count 139 transition count 1152
Discarding 1 places :
Symmetric choice reduction at 3 with 1 rule applications. Total rules 143 place count 138 transition count 1151
Iterating global reduction 3 with 1 rules applied. Total rules applied 144 place count 138 transition count 1151
Discarding 2 places :
Symmetric choice reduction at 3 with 2 rule applications. Total rules 146 place count 136 transition count 1149
Iterating global reduction 3 with 2 rules applied. Total rules applied 148 place count 136 transition count 1149
Discarding 2 places :
Symmetric choice reduction at 3 with 2 rule applications. Total rules 150 place count 134 transition count 1147
Iterating global reduction 3 with 2 rules applied. Total rules applied 152 place count 134 transition count 1147
Discarding 2 places :
Symmetric choice reduction at 3 with 2 rule applications. Total rules 154 place count 132 transition count 1145
Iterating global reduction 3 with 2 rules applied. Total rules applied 156 place count 132 transition count 1145
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 3 with 2 rules applied. Total rules applied 158 place count 132 transition count 1143
Drop transitions removed 10 transitions
Redundant transition composition rules discarded 10 transitions
Iterating global reduction 4 with 10 rules applied. Total rules applied 168 place count 132 transition count 1133
Reduce places removed 3 places and 0 transitions.
Ensure Unique test removed 6 transitions
Reduce isomorphic transitions removed 6 transitions.
Iterating post reduction 4 with 9 rules applied. Total rules applied 177 place count 129 transition count 1127
Drop transitions removed 19 transitions
Redundant transition composition rules discarded 19 transitions
Iterating global reduction 5 with 19 rules applied. Total rules applied 196 place count 129 transition count 1108
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 5 with 1 rules applied. Total rules applied 197 place count 128 transition count 1108
Discarding 1 places :
Symmetric choice reduction at 6 with 1 rule applications. Total rules 198 place count 127 transition count 1107
Iterating global reduction 6 with 1 rules applied. Total rules applied 199 place count 127 transition count 1107
Discarding 2 places :
Symmetric choice reduction at 6 with 2 rule applications. Total rules 201 place count 125 transition count 1105
Iterating global reduction 6 with 2 rules applied. Total rules applied 203 place count 125 transition count 1105
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 6 with 2 rules applied. Total rules applied 205 place count 125 transition count 1103
Drop transitions removed 1 transitions
Redundant transition composition rules discarded 1 transitions
Iterating global reduction 7 with 1 rules applied. Total rules applied 206 place count 125 transition count 1102
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 7 with 1 rules applied. Total rules applied 207 place count 124 transition count 1102
Drop transitions removed 1 transitions
Redundant transition composition rules discarded 1 transitions
Iterating global reduction 8 with 1 rules applied. Total rules applied 208 place count 124 transition count 1101
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 8 with 1 rules applied. Total rules applied 209 place count 123 transition count 1101
Drop transitions removed 1 transitions
Redundant transition composition rules discarded 1 transitions
Iterating global reduction 9 with 1 rules applied. Total rules applied 210 place count 123 transition count 1100
Applied a total of 210 rules in 261 ms. Remains 123 /164 variables (removed 41) and now considering 1100/1479 (removed 379) transitions.
[2023-03-18 03:44:24] [INFO ] Flow matrix only has 505 transitions (discarded 595 similar events)
Normalized transition count is 503 out of 505 initially.
// Phase 1: matrix 503 rows 123 cols
[2023-03-18 03:44:24] [INFO ] Computed 0 place invariants in 2 ms
[2023-03-18 03:44:24] [INFO ] Implicit Places using invariants in 162 ms returned []
[2023-03-18 03:44:24] [INFO ] Flow matrix only has 505 transitions (discarded 595 similar events)
[2023-03-18 03:44:24] [INFO ] Invariant cache hit.
[2023-03-18 03:44:24] [INFO ] State equation strengthened by 229 read => feed constraints.
[2023-03-18 03:44:25] [INFO ] Implicit Places using invariants and state equation in 541 ms returned []
Implicit Place search using SMT with State Equation took 710 ms to find 0 implicit places.
[2023-03-18 03:44:26] [INFO ] Redundant transitions in 1526 ms returned [19, 24, 26, 32, 33, 35, 36, 38, 47, 48, 57, 59, 60, 68, 70, 71, 77, 81, 82, 86, 87, 89, 91, 92, 96, 98, 100, 103, 104, 105, 106, 107, 108, 113, 114, 116, 117, 118, 120, 123, 127, 130, 132, 133, 143, 145, 147, 154, 156, 157, 158, 160, 163, 164, 165, 166, 168, 169, 171, 172, 175, 176, 177, 179, 180, 182, 183, 186, 188, 190, 192, 194, 195, 196, 197, 198, 202, 208, 209, 210, 211, 212, 213, 225, 226, 227, 229, 238, 239, 242, 244, 247, 248, 249, 250, 255, 256, 257, 260, 262, 266, 267, 268, 274, 344, 347, 354, 362, 363, 364, 365, 372, 374, 375, 376, 377, 378, 379, 384, 386, 388, 389, 390, 391, 392, 396, 399, 401, 402, 406, 409, 411, 412, 413, 414, 419, 420, 421, 422, 423, 424, 433, 434, 435, 436, 437, 443, 444, 445, 449, 450, 456, 479, 486, 487, 488, 494, 495, 496, 501, 553, 560, 561, 564, 567, 571, 576, 582, 587, 589, 590, 592, 593, 596, 598, 599, 602, 605, 608, 609, 612, 615, 619, 632, 633, 634, 635, 644, 645, 647, 648, 649, 651, 652, 654, 655, 658, 659, 661, 662, 664, 665, 668, 670, 671, 674, 677, 700, 701, 702, 703, 704, 705, 718, 719, 720, 722, 723, 724, 725, 727, 728, 729, 731, 732, 734, 735, 738, 763, 764, 765, 766, 780, 781, 782, 783, 785, 786, 803, 814, 830, 831, 832, 833, 834, 835, 836, 837, 838, 839, 840, 841, 842, 843, 844, 845, 846, 847, 848, 850, 851, 852, 853, 854, 855, 856, 857, 858, 859, 860, 861, 862, 867, 868, 869, 870, 871, 872, 873, 874, 875, 876, 882, 883, 884, 885, 886, 887, 888, 889, 890, 891, 892, 893, 894, 897, 898, 899, 900, 902, 903, 904, 905, 906, 907, 908, 909, 910, 911, 912, 913, 914, 918, 919, 921, 922, 923, 924, 925, 926, 927, 933, 934, 935, 936, 938, 941, 942, 943, 946, 947, 950, 951, 952, 955, 956, 957, 958, 962, 964, 966, 967, 969, 970, 971, 974, 976, 979, 981, 983, 984, 985, 987, 990, 993, 996, 997, 1002]
Found 358 redundant transitions using SMT.
Drop transitions removed 358 transitions
Redundant transitions reduction (with SMT) removed 358 transitions.
[2023-03-18 03:44:26] [INFO ] Flow matrix only has 327 transitions (discarded 415 similar events)
// Phase 1: matrix 327 rows 123 cols
[2023-03-18 03:44:26] [INFO ] Computed 0 place invariants in 2 ms
[2023-03-18 03:44:27] [INFO ] Dead Transitions using invariants and state equation in 320 ms found 0 transitions.
Starting structural reductions in SI_LTL mode, iteration 1 : 123/164 places, 742/1479 transitions.
Graph (complete) has 1250 edges and 123 vertex of which 118 are kept as prefixes of interest. Removing 5 places using SCC suffix rule.1 ms
Discarding 5 places :
Also discarding 0 output transitions
Ensure Unique test removed 27 transitions
Reduce isomorphic transitions removed 27 transitions.
Iterating post reduction 0 with 27 rules applied. Total rules applied 28 place count 118 transition count 715
Discarding 2 places :
Symmetric choice reduction at 1 with 2 rule applications. Total rules 30 place count 116 transition count 704
Iterating global reduction 1 with 2 rules applied. Total rules applied 32 place count 116 transition count 704
Ensure Unique test removed 9 transitions
Reduce isomorphic transitions removed 9 transitions.
Iterating post reduction 1 with 9 rules applied. Total rules applied 41 place count 116 transition count 695
Drop transitions removed 33 transitions
Redundant transition composition rules discarded 33 transitions
Iterating global reduction 2 with 33 rules applied. Total rules applied 74 place count 116 transition count 662
Reduce places removed 6 places and 0 transitions.
Ensure Unique test removed 14 transitions
Reduce isomorphic transitions removed 14 transitions.
Iterating post reduction 2 with 20 rules applied. Total rules applied 94 place count 110 transition count 648
Discarding 1 places :
Symmetric choice reduction at 3 with 1 rule applications. Total rules 95 place count 109 transition count 646
Iterating global reduction 3 with 1 rules applied. Total rules applied 96 place count 109 transition count 646
Ensure Unique test removed 3 transitions
Reduce isomorphic transitions removed 3 transitions.
Iterating post reduction 3 with 3 rules applied. Total rules applied 99 place count 109 transition count 643
Drop transitions removed 10 transitions
Redundant transition composition rules discarded 10 transitions
Iterating global reduction 4 with 10 rules applied. Total rules applied 109 place count 109 transition count 633
Discarding 1 places :
Symmetric choice reduction at 4 with 1 rule applications. Total rules 110 place count 108 transition count 625
Iterating global reduction 4 with 1 rules applied. Total rules applied 111 place count 108 transition count 625
Ensure Unique test removed 9 transitions
Reduce isomorphic transitions removed 9 transitions.
Iterating post reduction 4 with 9 rules applied. Total rules applied 120 place count 108 transition count 616
Applied a total of 120 rules in 60 ms. Remains 108 /123 variables (removed 15) and now considering 616/742 (removed 126) transitions.
[2023-03-18 03:44:27] [INFO ] Flow matrix only has 272 transitions (discarded 344 similar events)
// Phase 1: matrix 272 rows 108 cols
[2023-03-18 03:44:27] [INFO ] Computed 0 place invariants in 1 ms
[2023-03-18 03:44:27] [INFO ] Implicit Places using invariants in 121 ms returned []
[2023-03-18 03:44:27] [INFO ] Flow matrix only has 272 transitions (discarded 344 similar events)
[2023-03-18 03:44:27] [INFO ] Invariant cache hit.
[2023-03-18 03:44:27] [INFO ] State equation strengthened by 123 read => feed constraints.
[2023-03-18 03:44:27] [INFO ] Implicit Places using invariants and state equation in 327 ms returned []
Implicit Place search using SMT with State Equation took 452 ms to find 0 implicit places.
Starting structural reductions in SI_LTL mode, iteration 2 : 108/164 places, 616/1479 transitions.
Finished structural reductions in SI_LTL mode , in 2 iterations and 3341 ms. Remains : 108/164 places, 616/1479 transitions.
Stuttering acceptance computed with spot in 34 ms :[(NOT p0)]
Running random walk in product with property : SemanticWebServices-PT-S256P12-LTLFireability-07 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 s90 1) (GEQ s96 1) (GEQ s97 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 SemanticWebServices-PT-S256P12-LTLFireability-07 FALSE TECHNIQUES STUTTER_TEST
Treatment of property SemanticWebServices-PT-S256P12-LTLFireability-07 finished in 3397 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((p0||G(p1))))'
Support contains 11 out of 164 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 164/164 places, 1479/1479 transitions.
Reduce places removed 6 places and 0 transitions.
Ensure Unique test removed 38 transitions
Reduce isomorphic transitions removed 38 transitions.
Iterating post reduction 0 with 44 rules applied. Total rules applied 44 place count 158 transition count 1441
Discarding 6 places :
Symmetric choice reduction at 1 with 6 rule applications. Total rules 50 place count 152 transition count 1261
Iterating global reduction 1 with 6 rules applied. Total rules applied 56 place count 152 transition count 1261
Ensure Unique test removed 55 transitions
Reduce isomorphic transitions removed 55 transitions.
Iterating post reduction 1 with 55 rules applied. Total rules applied 111 place count 152 transition count 1206
Drop transitions removed 30 transitions
Redundant transition composition rules discarded 30 transitions
Iterating global reduction 2 with 30 rules applied. Total rules applied 141 place count 152 transition count 1176
Applied a total of 141 rules in 13 ms. Remains 152 /164 variables (removed 12) and now considering 1176/1479 (removed 303) transitions.
[2023-03-18 03:44:27] [INFO ] Flow matrix only has 545 transitions (discarded 631 similar events)
Normalized transition count is 543 out of 545 initially.
// Phase 1: matrix 543 rows 152 cols
[2023-03-18 03:44:27] [INFO ] Computed 1 place invariants in 2 ms
[2023-03-18 03:44:27] [INFO ] Implicit Places using invariants in 148 ms returned []
[2023-03-18 03:44:27] [INFO ] Flow matrix only has 545 transitions (discarded 631 similar events)
[2023-03-18 03:44:27] [INFO ] Invariant cache hit.
[2023-03-18 03:44:28] [INFO ] State equation strengthened by 251 read => feed constraints.
[2023-03-18 03:44:28] [INFO ] Implicit Places using invariants and state equation in 596 ms returned []
Implicit Place search using SMT with State Equation took 748 ms to find 0 implicit places.
[2023-03-18 03:44:28] [INFO ] Flow matrix only has 545 transitions (discarded 631 similar events)
[2023-03-18 03:44:28] [INFO ] Invariant cache hit.
[2023-03-18 03:44:28] [INFO ] Dead Transitions using invariants and state equation in 463 ms found 0 transitions.
Starting structural reductions in LTL mode, iteration 1 : 152/164 places, 1176/1479 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 1227 ms. Remains : 152/164 places, 1176/1479 transitions.
Stuttering acceptance computed with spot in 142 ms :[true, (AND (NOT p1) (NOT p0)), (NOT p1), (AND (NOT p1) (NOT p0))]
Running random walk in product with property : SemanticWebServices-PT-S256P12-LTLFireability-09 automaton TGBA Formula[mat=[[{ cond=true, acceptance={0} source=0 dest: 0}], [{ cond=true, acceptance={} source=1 dest: 3}], [{ cond=(NOT p1), acceptance={} source=2 dest: 0}, { cond=p1, acceptance={} source=2 dest: 2}], [{ cond=(AND (NOT p0) (NOT p1)), acceptance={} source=3 dest: 0}, { cond=(AND (NOT p0) p1), acceptance={} source=3 dest: 2}]], initial=1, aps=[p1:(OR (LT s13 1) (LT s87 1) (LT s136 1) (LT s30 1) (LT s56 1) (LT s105 1) (LT s115 1)), p0:(AND (GEQ s50 1) (GEQ s91 1) (GEQ s103 1) (GEQ s116 1))], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, deterministic, no-univ-branch, unambiguous, semi-deterministic, stutter-sensitive, terminal, very-weak, weak, inherently-weak], stateDesc=[null, null, null, null][false, false, false, false]]
Entered a terminal (fully accepting) state of product in 412 steps with 0 reset in 21 ms.
FORMULA SemanticWebServices-PT-S256P12-LTLFireability-09 FALSE TECHNIQUES STUTTER_TEST
Treatment of property SemanticWebServices-PT-S256P12-LTLFireability-09 finished in 1407 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))))'
Support contains 4 out of 164 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 164/164 places, 1479/1479 transitions.
Reduce places removed 10 places and 0 transitions.
Ensure Unique test removed 66 transitions
Reduce isomorphic transitions removed 66 transitions.
Iterating post reduction 0 with 76 rules applied. Total rules applied 76 place count 154 transition count 1413
Discarding 7 places :
Symmetric choice reduction at 1 with 7 rule applications. Total rules 83 place count 147 transition count 1201
Iterating global reduction 1 with 7 rules applied. Total rules applied 90 place count 147 transition count 1201
Ensure Unique test removed 54 transitions
Reduce isomorphic transitions removed 54 transitions.
Iterating post reduction 1 with 54 rules applied. Total rules applied 144 place count 147 transition count 1147
Drop transitions removed 41 transitions
Redundant transition composition rules discarded 41 transitions
Iterating global reduction 2 with 41 rules applied. Total rules applied 185 place count 147 transition count 1106
Reduce places removed 1 places and 0 transitions.
Ensure Unique test removed 5 transitions
Reduce isomorphic transitions removed 5 transitions.
Iterating post reduction 2 with 6 rules applied. Total rules applied 191 place count 146 transition count 1101
Drop transitions removed 9 transitions
Redundant transition composition rules discarded 9 transitions
Iterating global reduction 3 with 9 rules applied. Total rules applied 200 place count 146 transition count 1092
Reduce places removed 2 places and 0 transitions.
Ensure Unique test removed 6 transitions
Reduce isomorphic transitions removed 6 transitions.
Iterating post reduction 3 with 8 rules applied. Total rules applied 208 place count 144 transition count 1086
Drop transitions removed 12 transitions
Redundant transition composition rules discarded 12 transitions
Iterating global reduction 4 with 12 rules applied. Total rules applied 220 place count 144 transition count 1074
Reduce places removed 3 places and 0 transitions.
Ensure Unique test removed 30 transitions
Reduce isomorphic transitions removed 30 transitions.
Iterating post reduction 4 with 33 rules applied. Total rules applied 253 place count 141 transition count 1044
Drop transitions removed 8 transitions
Redundant transition composition rules discarded 8 transitions
Iterating global reduction 5 with 8 rules applied. Total rules applied 261 place count 141 transition count 1036
Reduce places removed 4 places and 0 transitions.
Ensure Unique test removed 12 transitions
Reduce isomorphic transitions removed 12 transitions.
Iterating post reduction 5 with 16 rules applied. Total rules applied 277 place count 137 transition count 1024
Discarding 1 places :
Symmetric choice reduction at 6 with 1 rule applications. Total rules 278 place count 136 transition count 1022
Iterating global reduction 6 with 1 rules applied. Total rules applied 279 place count 136 transition count 1022
Ensure Unique test removed 3 transitions
Reduce isomorphic transitions removed 3 transitions.
Iterating post reduction 6 with 3 rules applied. Total rules applied 282 place count 136 transition count 1019
Drop transitions removed 6 transitions
Redundant transition composition rules discarded 6 transitions
Iterating global reduction 7 with 6 rules applied. Total rules applied 288 place count 136 transition count 1013
Applied a total of 288 rules in 38 ms. Remains 136 /164 variables (removed 28) and now considering 1013/1479 (removed 466) transitions.
[2023-03-18 03:44:29] [INFO ] Flow matrix only has 454 transitions (discarded 559 similar events)
Normalized transition count is 452 out of 454 initially.
// Phase 1: matrix 452 rows 136 cols
[2023-03-18 03:44:29] [INFO ] Computed 1 place invariants in 2 ms
[2023-03-18 03:44:29] [INFO ] Implicit Places using invariants in 160 ms returned []
[2023-03-18 03:44:29] [INFO ] Flow matrix only has 454 transitions (discarded 559 similar events)
[2023-03-18 03:44:29] [INFO ] Invariant cache hit.
[2023-03-18 03:44:29] [INFO ] State equation strengthened by 205 read => feed constraints.
[2023-03-18 03:44:29] [INFO ] Implicit Places using invariants and state equation in 508 ms returned []
Implicit Place search using SMT with State Equation took 678 ms to find 0 implicit places.
[2023-03-18 03:44:29] [INFO ] Flow matrix only has 454 transitions (discarded 559 similar events)
[2023-03-18 03:44:29] [INFO ] Invariant cache hit.
[2023-03-18 03:44:30] [INFO ] Dead Transitions using invariants and state equation in 553 ms found 0 transitions.
Starting structural reductions in LTL mode, iteration 1 : 136/164 places, 1013/1479 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 1272 ms. Remains : 136/164 places, 1013/1479 transitions.
Stuttering acceptance computed with spot in 127 ms :[true, (NOT p0), (NOT p0), (NOT p0)]
Running random walk in product with property : SemanticWebServices-PT-S256P12-LTLFireability-11 automaton TGBA Formula[mat=[[{ cond=true, acceptance={0} source=0 dest: 0}], [{ cond=(NOT p0), acceptance={} source=1 dest: 0}, { cond=p0, acceptance={} source=1 dest: 1}], [{ cond=true, acceptance={} source=2 dest: 1}], [{ cond=true, acceptance={} source=3 dest: 2}]], initial=3, aps=[p0:(AND (GEQ s48 1) (GEQ s59 1) (GEQ s64 1) (GEQ s92 1))], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, complete, deterministic, no-univ-branch, unambiguous, semi-deterministic, stutter-sensitive, terminal, very-weak, weak, inherently-weak], stateDesc=[null, null, null, null][false, false, false, false]]
Stuttering criterion allowed to conclude after 0 steps with 0 reset in 0 ms.
FORMULA SemanticWebServices-PT-S256P12-LTLFireability-11 FALSE TECHNIQUES STUTTER_TEST
Treatment of property SemanticWebServices-PT-S256P12-LTLFireability-11 finished in 1415 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))) U G(p1)))'
Support contains 8 out of 164 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 164/164 places, 1479/1479 transitions.
Reduce places removed 8 places and 0 transitions.
Ensure Unique test removed 52 transitions
Reduce isomorphic transitions removed 52 transitions.
Iterating post reduction 0 with 60 rules applied. Total rules applied 60 place count 156 transition count 1427
Discarding 5 places :
Symmetric choice reduction at 1 with 5 rule applications. Total rules 65 place count 151 transition count 1271
Iterating global reduction 1 with 5 rules applied. Total rules applied 70 place count 151 transition count 1271
Ensure Unique test removed 47 transitions
Reduce isomorphic transitions removed 47 transitions.
Iterating post reduction 1 with 47 rules applied. Total rules applied 117 place count 151 transition count 1224
Drop transitions removed 40 transitions
Redundant transition composition rules discarded 40 transitions
Iterating global reduction 2 with 40 rules applied. Total rules applied 157 place count 151 transition count 1184
Applied a total of 157 rules in 15 ms. Remains 151 /164 variables (removed 13) and now considering 1184/1479 (removed 295) transitions.
[2023-03-18 03:44:30] [INFO ] Flow matrix only has 540 transitions (discarded 644 similar events)
Normalized transition count is 538 out of 540 initially.
// Phase 1: matrix 538 rows 151 cols
[2023-03-18 03:44:30] [INFO ] Computed 1 place invariants in 1 ms
[2023-03-18 03:44:30] [INFO ] Implicit Places using invariants in 194 ms returned []
[2023-03-18 03:44:30] [INFO ] Flow matrix only has 540 transitions (discarded 644 similar events)
[2023-03-18 03:44:30] [INFO ] Invariant cache hit.
[2023-03-18 03:44:30] [INFO ] State equation strengthened by 248 read => feed constraints.
[2023-03-18 03:44:31] [INFO ] Implicit Places using invariants and state equation in 572 ms returned []
Implicit Place search using SMT with State Equation took 768 ms to find 0 implicit places.
[2023-03-18 03:44:31] [INFO ] Flow matrix only has 540 transitions (discarded 644 similar events)
[2023-03-18 03:44:31] [INFO ] Invariant cache hit.
[2023-03-18 03:44:31] [INFO ] Dead Transitions using invariants and state equation in 435 ms found 0 transitions.
Starting structural reductions in LTL mode, iteration 1 : 151/164 places, 1184/1479 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 1221 ms. Remains : 151/164 places, 1184/1479 transitions.
Stuttering acceptance computed with spot in 252 ms :[(NOT p1), (NOT p0), (AND (NOT p1) (NOT p0)), (NOT p0), true, (AND (NOT p1) (NOT p0)), (AND (NOT p1) p0)]
Running random walk in product with property : SemanticWebServices-PT-S256P12-LTLFireability-14 automaton TGBA Formula[mat=[[{ cond=p1, acceptance={} source=0 dest: 0}, { cond=(NOT p1), acceptance={0} source=0 dest: 0}, { cond=(NOT p1), acceptance={} source=0 dest: 1}, { cond=p1, acceptance={} source=0 dest: 2}], [{ cond=true, acceptance={} source=1 dest: 3}], [{ cond=(NOT p1), acceptance={} source=2 dest: 3}, { cond=p1, acceptance={} source=2 dest: 5}], [{ cond=p0, acceptance={} source=3 dest: 3}, { cond=(NOT p0), acceptance={} source=3 dest: 4}], [{ cond=true, acceptance={0} source=4 dest: 4}], [{ cond=(AND (NOT p1) (NOT p0)), acceptance={} source=5 dest: 4}, { cond=(AND p1 (NOT p0)), acceptance={} source=5 dest: 6}], [{ cond=(AND (NOT p1) p0), acceptance={} source=6 dest: 4}, { cond=(AND p1 p0), acceptance={} source=6 dest: 6}]], initial=0, aps=[p1:(AND (GEQ s52 1) (GEQ s53 1) (GEQ s101 1) (GEQ s116 1)), p0:(AND (GEQ s10 1) (GEQ s104 1) (GEQ s114 1) (GEQ s139 1))], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, no-univ-branch, stutter-sensitive], stateDesc=[null, null, null, null, null, null, null][false, false, false, false, false, false, false]]
Stuttering criterion allowed to conclude after 0 steps with 0 reset in 0 ms.
FORMULA SemanticWebServices-PT-S256P12-LTLFireability-14 FALSE TECHNIQUES STUTTER_TEST
Treatment of property SemanticWebServices-PT-S256P12-LTLFireability-14 finished in 1494 ms.
All properties solved by simple procedures.
Total runtime 19869 ms.
ITS solved all properties within timeout

BK_STOP 1679111072808

--------------------
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 LTLFireability -timeout 360 -rebuildPNML

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="SemanticWebServices-PT-S256P12"
export BK_EXAMINATION="LTLFireability"
export BK_TOOL="lolaxred"
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 lolaxred"
echo " Input is SemanticWebServices-PT-S256P12, 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 r359-smll-167891809000436"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/SemanticWebServices-PT-S256P12.tgz
mv SemanticWebServices-PT-S256P12 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 ;