Execution Chart

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

Trace from the execution

Formatting '/data/fkordon/mcc2026-input.r136-smll-177955811000178.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2026-input.qcow2 backing_fmt=qcow2 cluster_size=65536 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
=====================================================================
Generated by BenchKit 2-5973
Executing tool itstools
Input is FireWire-PT-18, examination is StableMarking
Time confinement is 1800 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r136-smll-177955811000178
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 636K
-rw-r--r-- 1 mcc users 7.9K Mar 7 05:17 CTLCardinality.txt
-rw-r--r-- 1 mcc users 89K Mar 7 05:17 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.4K Mar 7 05:17 CTLFireability.txt
-rw-r--r-- 1 mcc users 49K Mar 7 05:17 CTLFireability.xml
-rw-r--r-- 1 mcc users 3.8K Mar 15 10:09 LTLCardinality.txt
-rw-r--r-- 1 mcc users 28K Mar 15 10:09 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.2K Mar 15 10:09 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K Mar 15 10:09 LTLFireability.xml
-rw-r--r-- 1 mcc users 14K Mar 7 05:17 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 143K Mar 7 05:17 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 7.7K Mar 7 05:17 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 64K Mar 7 05:17 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K Mar 15 10:09 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.6K Mar 15 10:09 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 equiv_col
-rw-r--r-- 1 mcc users 3 Mar 3 18:30 instance
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 iscolored
-rw-r--r-- 1 mcc users 168K Mar 3 18:30 model.pnml

--------------------
content from stdout:

=== Data for post analysis generated by BenchKit (invocation template)

The expected result is a vector of booleans
BOOL_VECTOR

FORMULA_NAME StableMarking

=== Now, execution of the tool begins

BK_START 1779615156833

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=StableMarking
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=1800
BK_INPUT=FireWire-PT-18
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
StableMarking PT
Running Version 202604301425
[2026-05-24 09:32:39] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, StableMarking, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 1800]
[2026-05-24 09:32:39] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-24 09:32:39] [INFO ] Load time of PNML (sax parser for PT used): 243 ms
[2026-05-24 09:32:39] [INFO ] Transformed 437 places.
[2026-05-24 09:32:39] [INFO ] Transformed 707 transitions.
[2026-05-24 09:32:39] [INFO ] Found NUPN structural information;
[2026-05-24 09:32:39] [INFO ] Parsed PT model containing 437 places and 707 transitions and 2170 arcs in 483 ms.
Graph (trivial) has 325 edges and 437 vertex of which 12 / 437 are part of one of the 3 SCC in 17 ms
Free SCC test removed 9 places
Structural test allowed to assert that 66 places are NOT stable. Took 56 ms.
Ensure Unique test removed 10 transitions
Reduce redundant transitions removed 10 transitions.
RANDOM walk for 40000 steps (644 resets) in 4168 ms. (9 steps per ms) remains 267/371 properties
BEST_FIRST walk for 403 steps (8 resets) in 15 ms. (25 steps per ms) remains 267/267 properties
BEST_FIRST walk for 403 steps (8 resets) in 10 ms. (36 steps per ms) remains 267/267 properties
[2026-05-24 09:32:41] [INFO ] Flatten gal took : 422 ms
BEST_FIRST walk for 404 steps (8 resets) in 20 ms. (19 steps per ms) remains 267/267 properties
BEST_FIRST walk for 404 steps (8 resets) in 32 ms. (12 steps per ms) remains 267/267 properties
BEST_FIRST walk for 403 steps (8 resets) in 23 ms. (16 steps per ms) remains 267/267 properties
BEST_FIRST walk for 404 steps (8 resets) in 21 ms. (18 steps per ms) remains 267/267 properties
BEST_FIRST walk for 403 steps (8 resets) in 18 ms. (21 steps per ms) remains 267/267 properties
BEST_FIRST walk for 402 steps (8 resets) in 10 ms. (36 steps per ms) remains 267/267 properties
BEST_FIRST walk for 404 steps (8 resets) in 12 ms. (31 steps per ms) remains 267/267 properties
BEST_FIRST walk for 402 steps (8 resets) in 15 ms. (25 steps per ms) remains 267/267 properties
BEST_FIRST walk for 404 steps (8 resets) in 12 ms. (31 steps per ms) remains 267/267 properties
BEST_FIRST walk for 404 steps (8 resets) in 12 ms. (31 steps per ms) remains 267/267 properties
BEST_FIRST walk for 403 steps (8 resets) in 10 ms. (36 steps per ms) remains 267/267 properties
BEST_FIRST walk for 404 steps (8 resets) in 14 ms. (26 steps per ms) remains 267/267 properties
BEST_FIRST walk for 402 steps (8 resets) in 14 ms. (26 steps per ms) remains 267/267 properties
[2026-05-24 09:32:41] [INFO ] Flatten gal took : 93 ms
BEST_FIRST walk for 402 steps (8 resets) in 16 ms. (23 steps per ms) remains 267/267 properties
BEST_FIRST walk for 402 steps (8 resets) in 14 ms. (26 steps per ms) remains 267/267 properties
BEST_FIRST walk for 404 steps (8 resets) in 11 ms. (33 steps per ms) remains 267/267 properties
BEST_FIRST walk for 403 steps (8 resets) in 16 ms. (23 steps per ms) remains 267/267 properties
BEST_FIRST walk for 404 steps (8 resets) in 12 ms. (31 steps per ms) remains 267/267 properties
BEST_FIRST walk for 404 steps (8 resets) in 12 ms. (31 steps per ms) remains 267/267 properties
BEST_FIRST walk for 404 steps (8 resets) in 14 ms. (26 steps per ms) remains 267/267 properties
BEST_FIRST walk for 403 steps (8 resets) in 9 ms. (40 steps per ms) remains 267/267 properties
BEST_FIRST walk for 404 steps (8 resets) in 13 ms. (28 steps per ms) remains 267/267 properties
BEST_FIRST walk for 404 steps (8 resets) in 12 ms. (31 steps per ms) remains 267/267 properties
BEST_FIRST walk for 404 steps (8 resets) in 16 ms. (23 steps per ms) remains 267/267 properties
BEST_FIRST walk for 403 steps (8 resets) in 10 ms. (36 steps per ms) remains 267/267 properties
BEST_FIRST walk for 403 steps (8 resets) in 7 ms. (50 steps per ms) remains 267/267 properties
BEST_FIRST walk for 404 steps (8 resets) in 10 ms. (36 steps per ms) remains 267/267 properties
BEST_FIRST walk for 404 steps (8 resets) in 10 ms. (36 steps per ms) remains 267/267 properties
BEST_FIRST walk for 404 steps (8 resets) in 10 ms. (36 steps per ms) remains 267/267 properties
BEST_FIRST walk for 404 steps (8 resets) in 8 ms. (44 steps per ms) remains 267/267 properties
BEST_FIRST walk for 404 steps (8 resets) in 9 ms. (40 steps per ms) remains 267/267 properties
BEST_FIRST walk for 404 steps (8 resets) in 8 ms. (44 steps per ms) remains 267/267 properties
BEST_FIRST walk for 402 steps (8 resets) in 9 ms. (40 steps per ms) remains 267/267 properties
BEST_FIRST walk for 402 steps (8 resets) in 8 ms. (44 steps per ms) remains 267/267 properties
BEST_FIRST walk for 404 steps (8 resets) in 11 ms. (33 steps per ms) remains 267/267 properties
BEST_FIRST walk for 403 steps (8 resets) in 8 ms. (44 steps per ms) remains 267/267 properties
BEST_FIRST walk for 404 steps (8 resets) in 8 ms. (44 steps per ms) remains 267/267 properties
BEST_FIRST walk for 404 steps (8 resets) in 9 ms. (40 steps per ms) remains 267/267 properties
BEST_FIRST walk for 404 steps (8 resets) in 9 ms. (40 steps per ms) remains 267/267 properties
[2026-05-24 09:32:41] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality12242963073905202879.gal : 83 ms
BEST_FIRST walk for 402 steps (8 resets) in 7 ms. (50 steps per ms) remains 267/267 properties
BEST_FIRST walk for 403 steps (8 resets) in 10 ms. (36 steps per ms) remains 267/267 properties
BEST_FIRST walk for 404 steps (8 resets) in 10 ms. (36 steps per ms) remains 267/267 properties
BEST_FIRST walk for 402 steps (8 resets) in 11 ms. (33 steps per ms) remains 267/267 properties
BEST_FIRST walk for 404 steps (8 resets) in 9 ms. (40 steps per ms) remains 267/267 properties
BEST_FIRST walk for 403 steps (8 resets) in 8 ms. (44 steps per ms) remains 267/267 properties
BEST_FIRST walk for 404 steps (8 resets) in 9 ms. (40 steps per ms) remains 267/267 properties
BEST_FIRST walk for 404 steps (8 resets) in 10 ms. (36 steps per ms) remains 267/267 properties
BEST_FIRST walk for 404 steps (8 resets) in 10 ms. (36 steps per ms) remains 267/267 properties
[2026-05-24 09:32:41] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality210888881410850358.prop : 7 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202604301425/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality12242963073905202879.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality210888881410850358.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202604301425/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...328
[2026-05-24 09:32:41] [INFO ] Flow matrix only has 695 transitions (discarded 2 similar events)
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-2906367272092614355.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-733644573498369811.kers'
[2026-05-24 09:32:41] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-2906367272092614355.kers, --Pflows, --basisKERS=/tmp/petrispot-output-733644573498369811.kers]
Normalized transition count is 694 out of 695 initially.
Culled 0 columns in 1 ms.
// Phase 1: matrix 694 rows 428 cols 2144 entries
Loading property file /tmp/ReachabilityCardinality210888881410850358.prop.
Finished phase 1 with 419 SingleSign rule and 0 generalized
[2026-05-24 09:32:41] [INFO ] Computed 9 invariants in 5 ms
Computed 9 P flows in 7 ms.
Exported basis to /tmp/petrispot-output-733644573498369811.kers
Total runtime 8 ms.
[2026-05-24 09:32:41] [INFO ] State equation strengthened by 1 read => feed constraints.
SDD proceeding with computation,267 properties remain. new max is 4
SDD size :1 after 2
SDD proceeding with computation,267 properties remain. new max is 8
SDD size :2 after 3
SDD proceeding with computation,267 properties remain. new max is 16
SDD size :3 after 10
SDD proceeding with computation,267 properties remain. new max is 32
SDD size :10 after 43
SDD proceeding with computation,267 properties remain. new max is 64
SDD size :43 after 105
SDD proceeding with computation,267 properties remain. new max is 128
SDD size :105 after 177
SDD proceeding with computation,267 properties remain. new max is 256
SDD size :177 after 2972
SDD proceeding with computation,267 properties remain. new max is 512
SDD size :2972 after 5908
SDD proceeding with computation,267 properties remain. new max is 1024
SDD size :5908 after 9968
Invariant property smplace_224 does not hold.
Invariant property smplace_223 does not hold.
Invariant property smplace_222 does not hold.
Invariant property smplace_221 does not hold.
Invariant property smplace_220 does not hold.
Invariant property smplace_219 does not hold.
Invariant property smplace_218 does not hold.
Invariant property smplace_217 does not hold.
Invariant property smplace_96 does not hold.
Invariant property smplace_62 does not hold.
Invariant property smplace_61 does not hold.
Invariant property smplace_60 does not hold.
Invariant property smplace_58 does not hold.
SDD proceeding with computation,254 properties remain. new max is 1024
SDD size :9968 after 17194
Invariant property smplace_216 does not hold.
SDD proceeding with computation,253 properties remain. new max is 1024
SDD size :17194 after 28730
SDD proceeding with computation,253 properties remain. new max is 2048
SDD size :28730 after 34130
Invariant property smplace_59 does not hold.
Invariant property smplace_57 does not hold.
SDD proceeding with computation,251 properties remain. new max is 2048
SDD size :34130 after 45078
Invariant property smplace_56 does not hold.
SDD proceeding with computation,250 properties remain. new max is 2048
SDD size :45078 after 52034
SDD proceeding with computation,250 properties remain. new max is 4096
SDD size :52034 after 57042
Invariant property smplace_215 does not hold.
Invariant property smplace_214 does not hold.
Invariant property smplace_213 does not hold.
Invariant property smplace_212 does not hold.
Invariant property smplace_204 does not hold.
Invariant property smplace_200 does not hold.
Invariant property smplace_186 does not hold.
Invariant property smplace_185 does not hold.
Invariant property smplace_184 does not hold.
Invariant property smplace_183 does not hold.
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/267 variables, 267/267 constraints. Problems are: Problem set: 0 solved, 267 unsolved
Invariant property smplace_92 does not hold.
SDD proceeding with computation,239 properties remain. new max is 4096
SDD size :57042 after 155338
Error getting values : (error "Timeout of Z3 solver reached")
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 267/1123 variables, and 267 constraints, problems are : Problem set: 28 solved, 239 unsolved in 5072 ms.
Refiners :[Domain max(s): 267/428 constraints, Positive P Invariants (semi-flows): 0/9 constraints, State Equation: 0/428 constraints, ReadFeed: 0/1 constraints, PredecessorRefiner: 267/267 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 28 solved, 239 unsolved
Invariant property smplace_203 does not hold.
Invariant property smplace_202 does not hold.
Invariant property smplace_201 does not hold.
Invariant property smplace_175 does not hold.
Invariant property smplace_172 does not hold.
Invariant property smplace_171 does not hold.
Invariant property smplace_170 does not hold.
Invariant property smplace_169 does not hold.
Invariant property smplace_168 does not hold.
Invariant property smplace_167 does not hold.
Invariant property smplace_166 does not hold.
Invariant property smplace_165 does not hold.
Invariant property smplace_164 does not hold.
Invariant property smplace_163 does not hold.
Invariant property smplace_162 does not hold.
Invariant property smplace_161 does not hold.
Invariant property smplace_160 does not hold.
Invariant property smplace_159 does not hold.
Invariant property smplace_158 does not hold.
Invariant property smplace_157 does not hold.
Invariant property smplace_156 does not hold.
At refinement iteration 0 (INCLUDED_ONLY) 0/239 variables, 239/239 constraints. Problems are: Problem set: 49 solved, 218 unsolved
Invariant property smplace_120 does not hold.
Invariant property smplace_119 does not hold.
Invariant property smplace_117 does not hold.
Invariant property smplace_116 does not hold.
Invariant property smplace_115 does not hold.
Invariant property smplace_114 does not hold.
Invariant property smplace_113 does not hold.
Invariant property smplace_112 does not hold.
Invariant property smplace_111 does not hold.
Invariant property smplace_110 does not hold.
Invariant property smplace_109 does not hold.
Invariant property smplace_108 does not hold.
Invariant property smplace_107 does not hold.
Invariant property smplace_106 does not hold.
Invariant property smplace_105 does not hold.
Invariant property smplace_100 does not hold.
Invariant property smplace_89 does not hold.
Invariant property smplace_88 does not hold.
Invariant property smplace_87 does not hold.
Invariant property smplace_85 does not hold.
Invariant property smplace_84 does not hold.
Invariant property smplace_83 does not hold.
Invariant property smplace_82 does not hold.
SDD proceeding with computation,195 properties remain. new max is 4096
SDD size :155338 after 274160
SDD proceeding with computation,195 properties remain. new max is 8192
SDD size :274160 after 361127
At refinement iteration 1 (INCLUDED_ONLY) 0/239 variables, 0/239 constraints. Problems are: Problem set: 72 solved, 195 unsolved
At refinement iteration 2 (OVERLAPS) 167/406 variables, 8/247 constraints. Problems are: Problem set: 72 solved, 195 unsolved
SDD proceeding with computation,195 properties remain. new max is 16384
SDD size :361127 after 844791
At refinement iteration 3 (INCLUDED_ONLY) 0/406 variables, 167/414 constraints. Problems are: Problem set: 72 solved, 195 unsolved
SMT process timed out in 10517ms, After SMT, problems are : Problem set: 72 solved, 195 unsolved
Fused 195 Parikh solutions to 1 different solutions.
Parikh walk visited 0 properties in 0 ms.
Support contains 195 out of 428 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 428/428 places, 697/697 transitions.
Graph (complete) has 1269 edges and 428 vertex of which 421 are kept as prefixes of interest. Removing 7 places using SCC suffix rule.8 ms
Discarding 7 places :
Also discarding 0 output transitions
Drop transitions (Empty/Sink Transition effects.) removed 4 transitions
Reduce isomorphic transitions removed 4 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 58 transitions
Trivial Post-agglo rules discarded 58 transitions
Performed 58 trivial Post agglomeration. Transition count delta: 58
Iterating post reduction 0 with 62 rules applied. Total rules applied 63 place count 421 transition count 635
Reduce places removed 58 places and 0 transitions.
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 1 transitions
Trivial Post-agglo rules discarded 1 transitions
Performed 1 trivial Post agglomeration. Transition count delta: 1
Iterating post reduction 1 with 60 rules applied. Total rules applied 123 place count 363 transition count 633
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 2 with 1 rules applied. Total rules applied 124 place count 362 transition count 633
Performed 7 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 7 Pre rules applied. Total rules applied 124 place count 362 transition count 626
Deduced a syphon composed of 7 places in 3 ms
Reduce places removed 7 places and 0 transitions.
Iterating global reduction 3 with 14 rules applied. Total rules applied 138 place count 355 transition count 626
Discarding 21 places :
Symmetric choice reduction at 3 with 21 rule applications. Total rules 159 place count 334 transition count 603
Iterating global reduction 3 with 21 rules applied. Total rules applied 180 place count 334 transition count 603
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 3 with 2 rules applied. Total rules applied 182 place count 334 transition count 601
Discarding 3 places :
Symmetric choice reduction at 4 with 3 rule applications. Total rules 185 place count 331 transition count 541
Iterating global reduction 4 with 3 rules applied. Total rules applied 188 place count 331 transition count 541
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 4 with 2 rules applied. Total rules applied 190 place count 331 transition count 539
Performed 28 Post agglomeration using F-continuation condition.Transition count delta: 28
Deduced a syphon composed of 28 places in 2 ms
Reduce places removed 28 places and 0 transitions.
Iterating global reduction 5 with 56 rules applied. Total rules applied 246 place count 303 transition count 511
Performed 17 Post agglomeration using F-continuation condition with reduction of 3 identical transitions.
Deduced a syphon composed of 17 places in 2 ms
Reduce places removed 17 places and 0 transitions.
Iterating global reduction 5 with 34 rules applied. Total rules applied 280 place count 286 transition count 546
Free-agglomeration rule applied 13 times.
Iterating global reduction 5 with 13 rules applied. Total rules applied 293 place count 286 transition count 533
Reduce places removed 13 places and 0 transitions.
Drop transitions (Empty/Sink Transition effects.) removed 4 transitions
Reduce isomorphic transitions removed 4 transitions.
Iterating post reduction 5 with 17 rules applied. Total rules applied 310 place count 273 transition count 529
Discarding 1 places :
Symmetric choice reduction at 6 with 1 rule applications. Total rules 311 place count 272 transition count 528
Iterating global reduction 6 with 1 rules applied. Total rules applied 312 place count 272 transition count 528
Drop transitions (Redundant composition of simpler transitions.) removed 8 transitions
Redundant transition composition rules discarded 8 transitions
Iterating global reduction 6 with 8 rules applied. Total rules applied 320 place count 272 transition count 520
Applied a total of 320 rules in 239 ms. Remains 272 /428 variables (removed 156) and now considering 520/697 (removed 177) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 251 ms. Remains : 272/428 places, 520/697 transitions.
Invariant property smplace_199 does not hold.
Invariant property smplace_198 does not hold.
Invariant property smplace_197 does not hold.
Invariant property smplace_155 does not hold.
Invariant property smplace_154 does not hold.
Invariant property smplace_153 does not hold.
Invariant property smplace_152 does not hold.
Invariant property smplace_151 does not hold.
Invariant property smplace_150 does not hold.
Invariant property smplace_149 does not hold.
Invariant property smplace_148 does not hold.
Invariant property smplace_147 does not hold.
Invariant property smplace_146 does not hold.
Invariant property smplace_145 does not hold.
Invariant property smplace_144 does not hold.
Invariant property smplace_143 does not hold.
Invariant property smplace_142 does not hold.
Invariant property smplace_141 does not hold.
Invariant property smplace_140 does not hold.
Invariant property smplace_139 does not hold.
Invariant property smplace_138 does not hold.
Invariant property smplace_137 does not hold.
Invariant property smplace_136 does not hold.
Invariant property smplace_135 does not hold.
Invariant property smplace_134 does not hold.
Invariant property smplace_133 does not hold.
Invariant property smplace_132 does not hold.
Invariant property smplace_131 does not hold.
Invariant property smplace_130 does not hold.
Invariant property smplace_129 does not hold.
Invariant property smplace_128 does not hold.
Invariant property smplace_127 does not hold.
Invariant property smplace_126 does not hold.
Invariant property smplace_125 does not hold.
Invariant property smplace_124 does not hold.
Invariant property smplace_123 does not hold.
Invariant property smplace_122 does not hold.
Invariant property smplace_121 does not hold.
Invariant property smplace_118 does not hold.
Invariant property smplace_86 does not hold.
Invariant property smplace_81 does not hold.
Invariant property smplace_80 does not hold.
Invariant property smplace_30 does not hold.
Invariant property smplace_18 does not hold.
Invariant property smplace_17 does not hold.
Invariant property smplace_12 does not hold.
Invariant property smplace_10 does not hold.
Invariant property smplace_9 does not hold.
Invariant property smplace_8 does not hold.
Invariant property smplace_5 does not hold.
SDD proceeding with computation,145 properties remain. new max is 16384
SDD size :844791 after 1.86879e+06
SDD proceeding with computation,145 properties remain. new max is 32768
SDD size :1.86879e+06 after 2.33274e+06
Invariant property smplace_211 does not hold.
Invariant property smplace_210 does not hold.
Invariant property smplace_209 does not hold.
Invariant property smplace_208 does not hold.
Invariant property smplace_207 does not hold.
Invariant property smplace_206 does not hold.
Invariant property smplace_205 does not hold.
Invariant property smplace_196 does not hold.
Invariant property smplace_195 does not hold.
Invariant property smplace_194 does not hold.
Invariant property smplace_193 does not hold.
Invariant property smplace_192 does not hold.
Invariant property smplace_191 does not hold.
Invariant property smplace_190 does not hold.
Invariant property smplace_189 does not hold.
Invariant property smplace_188 does not hold.
Invariant property smplace_187 does not hold.
Invariant property smplace_93 does not hold.
SDD proceeding with computation,127 properties remain. new max is 32768
SDD size :2.33274e+06 after 4.65877e+06
RANDOM walk for 4000000 steps (252519 resets) in 64084 ms. (62 steps per ms) remains 104/195 properties
BEST_FIRST walk for 40004 steps (596 resets) in 186 ms. (213 steps per ms) remains 104/104 properties
BEST_FIRST walk for 40004 steps (590 resets) in 147 ms. (270 steps per ms) remains 104/104 properties
BEST_FIRST walk for 40002 steps (595 resets) in 176 ms. (226 steps per ms) remains 104/104 properties
BEST_FIRST walk for 40004 steps (583 resets) in 154 ms. (258 steps per ms) remains 104/104 properties
BEST_FIRST walk for 40002 steps (587 resets) in 163 ms. (243 steps per ms) remains 104/104 properties
BEST_FIRST walk for 40004 steps (595 resets) in 155 ms. (256 steps per ms) remains 104/104 properties
BEST_FIRST walk for 40003 steps (573 resets) in 199 ms. (200 steps per ms) remains 104/104 properties
BEST_FIRST walk for 40004 steps (579 resets) in 167 ms. (238 steps per ms) remains 104/104 properties
BEST_FIRST walk for 40002 steps (599 resets) in 213 ms. (186 steps per ms) remains 104/104 properties
BEST_FIRST walk for 40004 steps (598 resets) in 203 ms. (196 steps per ms) remains 104/104 properties
BEST_FIRST walk for 40002 steps (587 resets) in 186 ms. (213 steps per ms) remains 104/104 properties
BEST_FIRST walk for 40003 steps (570 resets) in 189 ms. (210 steps per ms) remains 104/104 properties
BEST_FIRST walk for 40003 steps (575 resets) in 160 ms. (248 steps per ms) remains 104/104 properties
BEST_FIRST walk for 40003 steps (581 resets) in 202 ms. (197 steps per ms) remains 104/104 properties
BEST_FIRST walk for 40004 steps (584 resets) in 159 ms. (250 steps per ms) remains 104/104 properties
BEST_FIRST walk for 40003 steps (598 resets) in 144 ms. (275 steps per ms) remains 104/104 properties
BEST_FIRST walk for 40003 steps (602 resets) in 180 ms. (221 steps per ms) remains 104/104 properties
BEST_FIRST walk for 40001 steps (589 resets) in 144 ms. (275 steps per ms) remains 104/104 properties
BEST_FIRST walk for 40004 steps (595 resets) in 175 ms. (227 steps per ms) remains 104/104 properties
BEST_FIRST walk for 40004 steps (583 resets) in 154 ms. (258 steps per ms) remains 104/104 properties
BEST_FIRST walk for 40003 steps (577 resets) in 203 ms. (196 steps per ms) remains 104/104 properties
BEST_FIRST walk for 40003 steps (603 resets) in 164 ms. (242 steps per ms) remains 104/104 properties
BEST_FIRST walk for 40004 steps (580 resets) in 205 ms. (194 steps per ms) remains 104/104 properties
BEST_FIRST walk for 40004 steps (584 resets) in 142 ms. (279 steps per ms) remains 104/104 properties
BEST_FIRST walk for 40004 steps (564 resets) in 148 ms. (268 steps per ms) remains 104/104 properties
BEST_FIRST walk for 40003 steps (598 resets) in 148 ms. (268 steps per ms) remains 104/104 properties
BEST_FIRST walk for 40002 steps (606 resets) in 131 ms. (303 steps per ms) remains 104/104 properties
BEST_FIRST walk for 40003 steps (582 resets) in 164 ms. (242 steps per ms) remains 104/104 properties
BEST_FIRST walk for 40003 steps (569 resets) in 183 ms. (217 steps per ms) remains 104/104 properties
BEST_FIRST walk for 40003 steps (585 resets) in 156 ms. (254 steps per ms) remains 104/104 properties
BEST_FIRST walk for 40002 steps (583 resets) in 160 ms. (248 steps per ms) remains 104/104 properties
BEST_FIRST walk for 40003 steps (583 resets) in 166 ms. (239 steps per ms) remains 104/104 properties
BEST_FIRST walk for 40004 steps (585 resets) in 132 ms. (300 steps per ms) remains 104/104 properties
BEST_FIRST walk for 40003 steps (576 resets) in 179 ms. (222 steps per ms) remains 104/104 properties
BEST_FIRST walk for 40003 steps (590 resets) in 205 ms. (194 steps per ms) remains 104/104 properties
BEST_FIRST walk for 40003 steps (578 resets) in 244 ms. (163 steps per ms) remains 104/104 properties
BEST_FIRST walk for 40004 steps (603 resets) in 203 ms. (196 steps per ms) remains 104/104 properties
BEST_FIRST walk for 40004 steps (575 resets) in 212 ms. (187 steps per ms) remains 104/104 properties
BEST_FIRST walk for 40003 steps (586 resets) in 238 ms. (167 steps per ms) remains 104/104 properties
BEST_FIRST walk for 40003 steps (578 resets) in 276 ms. (144 steps per ms) remains 104/104 properties
BEST_FIRST walk for 40003 steps (579 resets) in 183 ms. (217 steps per ms) remains 104/104 properties
BEST_FIRST walk for 40002 steps (577 resets) in 167 ms. (238 steps per ms) remains 104/104 properties
BEST_FIRST walk for 40003 steps (601 resets) in 136 ms. (291 steps per ms) remains 104/104 properties
BEST_FIRST walk for 40004 steps (581 resets) in 171 ms. (232 steps per ms) remains 104/104 properties
BEST_FIRST walk for 40003 steps (590 resets) in 180 ms. (221 steps per ms) remains 104/104 properties
BEST_FIRST walk for 40002 steps (576 resets) in 169 ms. (235 steps per ms) remains 104/104 properties
BEST_FIRST walk for 40003 steps (565 resets) in 174 ms. (228 steps per ms) remains 104/104 properties
Invariant property smplace_412 does not hold.
Invariant property smplace_411 does not hold.
Invariant property smplace_410 does not hold.
Invariant property smplace_409 does not hold.
BEST_FIRST walk for 40004 steps (590 resets) in 129 ms. (307 steps per ms) remains 104/104 properties
BEST_FIRST walk for 40003 steps (590 resets) in 203 ms. (196 steps per ms) remains 104/104 properties
BEST_FIRST walk for 40003 steps (565 resets) in 205 ms. (194 steps per ms) remains 104/104 properties
[2026-05-24 09:33:12] [INFO ] Flow matrix only has 517 transitions (discarded 3 similar events)
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-3932797646473198061.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-1572691333034048649.kers'
[2026-05-24 09:33:12] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-3932797646473198061.kers, --Pflows, --basisKERS=/tmp/petrispot-output-1572691333034048649.kers]
Culled 0 columns in 0 ms.
// Phase 1: matrix 517 rows 272 cols 1720 entries
Finished phase 1 with 265 SingleSign rule and 0 generalized
[2026-05-24 09:33:12] [INFO ] Computed 7 invariants in 4 ms
Computed 7 P flows in 4 ms.
Exported basis to /tmp/petrispot-output-1572691333034048649.kers
Total runtime 5 ms.
[2026-05-24 09:33:12] [INFO ] State equation strengthened by 37 read => feed constraints.
SDD proceeding with computation,123 properties remain. new max is 32768
SDD size :4.65877e+06 after 2.46907e+07
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/63 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 63 unsolved
At refinement iteration 1 (OVERLAPS) 82/145 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 63 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/145 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 63 unsolved
At refinement iteration 3 (OVERLAPS) 118/263 variables, 4/7 constraints. Problems are: Problem set: 0 solved, 63 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/263 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 63 unsolved
At refinement iteration 5 (OVERLAPS) 516/779 variables, 263/270 constraints. Problems are: Problem set: 0 solved, 63 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/779 variables, 37/307 constraints. Problems are: Problem set: 0 solved, 63 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/779 variables, 0/307 constraints. Problems are: Problem set: 0 solved, 63 unsolved
At refinement iteration 8 (OVERLAPS) 10/789 variables, 9/316 constraints. Problems are: Problem set: 0 solved, 63 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/789 variables, 0/316 constraints. Problems are: Problem set: 0 solved, 63 unsolved
At refinement iteration 10 (OVERLAPS) 0/789 variables, 0/316 constraints. Problems are: Problem set: 0 solved, 63 unsolved
No progress, stopping.
After SMT solving in domain Real declared 789/789 variables, and 316 constraints, problems are : Problem set: 0 solved, 63 unsolved in 4916 ms.
Refiners :[Positive P Invariants (semi-flows): 7/7 constraints, State Equation: 272/272 constraints, ReadFeed: 37/37 constraints, PredecessorRefiner: 63/63 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 63 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/63 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 63 unsolved
At refinement iteration 1 (OVERLAPS) 82/145 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 63 unsolved
Invariant property smplace_408 does not hold.
Invariant property smplace_407 does not hold.
Invariant property smplace_406 does not hold.
Invariant property smplace_404 does not hold.
At refinement iteration 2 (INCLUDED_ONLY) 0/145 variables, 6/9 constraints. Problems are: Problem set: 0 solved, 63 unsolved
SDD proceeding with computation,119 properties remain. new max is 32768
SDD size :2.46907e+07 after 4.45585e+07
At refinement iteration 3 (INCLUDED_ONLY) 0/145 variables, 1/10 constraints. Problems are: Problem set: 0 solved, 63 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/145 variables, 0/10 constraints. Problems are: Problem set: 0 solved, 63 unsolved
At refinement iteration 5 (OVERLAPS) 118/263 variables, 4/14 constraints. Problems are: Problem set: 0 solved, 63 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/263 variables, 1/15 constraints. Problems are: Problem set: 0 solved, 63 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/263 variables, 0/15 constraints. Problems are: Problem set: 0 solved, 63 unsolved
At refinement iteration 8 (OVERLAPS) 516/779 variables, 263/278 constraints. Problems are: Problem set: 0 solved, 63 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/779 variables, 37/315 constraints. Problems are: Problem set: 0 solved, 63 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/779 variables, 63/378 constraints. Problems are: Problem set: 0 solved, 63 unsolved
SDD proceeding with computation,119 properties remain. new max is 65536
SDD size :4.45585e+07 after 4.81057e+07
At refinement iteration 11 (INCLUDED_ONLY) 0/779 variables, 3/381 constraints. Problems are: Problem set: 0 solved, 63 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/779 variables, 1/382 constraints. Problems are: Problem set: 0 solved, 63 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/779 variables, 2/384 constraints. Problems are: Problem set: 0 solved, 63 unsolved
SDD proceeding with computation,119 properties remain. new max is 131072
SDD size :4.81057e+07 after 6.29913e+07
At refinement iteration 14 (INCLUDED_ONLY) 0/779 variables, 0/384 constraints. Problems are: Problem set: 0 solved, 63 unsolved
At refinement iteration 15 (OVERLAPS) 10/789 variables, 9/393 constraints. Problems are: Problem set: 0 solved, 63 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/789 variables, 0/393 constraints. Problems are: Problem set: 0 solved, 63 unsolved
Error getting values : (error "Timeout of Z3 solver reached")
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 789/789 variables, and 393 constraints, problems are : Problem set: 0 solved, 63 unsolved in 45017 ms.
Refiners :[Positive P Invariants (semi-flows): 7/7 constraints, State Equation: 272/272 constraints, ReadFeed: 37/37 constraints, PredecessorRefiner: 63/63 constraints, Known Traps: 14/14 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 49979ms problems are : Problem set: 0 solved, 63 unsolved
Skipping Parikh replay, no witness traces provided.
Support contains 63 out of 272 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 272/272 places, 520/520 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 21 transitions
Trivial Post-agglo rules discarded 21 transitions
Performed 21 trivial Post agglomeration. Transition count delta: 21
Iterating post reduction 0 with 21 rules applied. Total rules applied 21 place count 272 transition count 499
Reduce places removed 21 places and 0 transitions.
Iterating post reduction 1 with 21 rules applied. Total rules applied 42 place count 251 transition count 499
Performed 4 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 4 Pre rules applied. Total rules applied 42 place count 251 transition count 495
Deduced a syphon composed of 4 places in 1 ms
Reduce places removed 4 places and 0 transitions.
Iterating global reduction 2 with 8 rules applied. Total rules applied 50 place count 247 transition count 495
Discarding 17 places :
Symmetric choice reduction at 2 with 17 rule applications. Total rules 67 place count 230 transition count 476
Iterating global reduction 2 with 17 rules applied. Total rules applied 84 place count 230 transition count 476
Performed 2 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 2 Pre rules applied. Total rules applied 84 place count 230 transition count 474
Deduced a syphon composed of 2 places in 1 ms
Reduce places removed 2 places and 0 transitions.
Iterating global reduction 2 with 4 rules applied. Total rules applied 88 place count 228 transition count 474
Discarding 8 places :
Symmetric choice reduction at 2 with 8 rule applications. Total rules 96 place count 220 transition count 461
Iterating global reduction 2 with 8 rules applied. Total rules applied 104 place count 220 transition count 461
Discarding 3 places :
Symmetric choice reduction at 2 with 3 rule applications. Total rules 107 place count 217 transition count 455
Iterating global reduction 2 with 3 rules applied. Total rules applied 110 place count 217 transition count 455
Ensure Unique test removed 4 transitions
Reduce isomorphic transitions removed 4 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 1 transitions
Trivial Post-agglo rules discarded 1 transitions
Performed 1 trivial Post agglomeration. Transition count delta: 1
Iterating post reduction 2 with 5 rules applied. Total rules applied 115 place count 217 transition count 450
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 3 with 1 rules applied. Total rules applied 116 place count 216 transition count 450
Performed 14 Post agglomeration using F-continuation condition.Transition count delta: 14
Deduced a syphon composed of 14 places in 1 ms
Reduce places removed 14 places and 0 transitions.
Iterating global reduction 4 with 28 rules applied. Total rules applied 144 place count 202 transition count 436
Discarding 3 places :
Symmetric choice reduction at 4 with 3 rule applications. Total rules 147 place count 199 transition count 433
Iterating global reduction 4 with 3 rules applied. Total rules applied 150 place count 199 transition count 433
Performed 11 Post agglomeration using F-continuation condition with reduction of 3 identical transitions.
Deduced a syphon composed of 11 places in 1 ms
Reduce places removed 11 places and 0 transitions.
Iterating global reduction 4 with 22 rules applied. Total rules applied 172 place count 188 transition count 453
Drop transitions (Empty/Sink Transition effects.) removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 4 with 1 rules applied. Total rules applied 173 place count 188 transition count 452
Discarding 1 places :
Symmetric choice reduction at 5 with 1 rule applications. Total rules 174 place count 187 transition count 446
Iterating global reduction 5 with 1 rules applied. Total rules applied 175 place count 187 transition count 446
Discarding 1 places :
Symmetric choice reduction at 5 with 1 rule applications. Total rules 176 place count 186 transition count 444
Iterating global reduction 5 with 1 rules applied. Total rules applied 177 place count 186 transition count 444
Discarding 1 places :
Symmetric choice reduction at 5 with 1 rule applications. Total rules 178 place count 185 transition count 441
Iterating global reduction 5 with 1 rules applied. Total rules applied 179 place count 185 transition count 441
Discarding 1 places :
Symmetric choice reduction at 5 with 1 rule applications. Total rules 180 place count 184 transition count 439
Iterating global reduction 5 with 1 rules applied. Total rules applied 181 place count 184 transition count 439
Discarding 1 places :
Symmetric choice reduction at 5 with 1 rule applications. Total rules 182 place count 183 transition count 436
Iterating global reduction 5 with 1 rules applied. Total rules applied 183 place count 183 transition count 436
Discarding 1 places :
Symmetric choice reduction at 5 with 1 rule applications. Total rules 184 place count 182 transition count 434
Iterating global reduction 5 with 1 rules applied. Total rules applied 185 place count 182 transition count 434
Discarding 1 places :
Symmetric choice reduction at 5 with 1 rule applications. Total rules 186 place count 181 transition count 431
Iterating global reduction 5 with 1 rules applied. Total rules applied 187 place count 181 transition count 431
Discarding 1 places :
Symmetric choice reduction at 5 with 1 rule applications. Total rules 188 place count 180 transition count 429
Iterating global reduction 5 with 1 rules applied. Total rules applied 189 place count 180 transition count 429
Discarding 1 places :
Symmetric choice reduction at 5 with 1 rule applications. Total rules 190 place count 179 transition count 426
Iterating global reduction 5 with 1 rules applied. Total rules applied 191 place count 179 transition count 426
Discarding 1 places :
Symmetric choice reduction at 5 with 1 rule applications. Total rules 192 place count 178 transition count 424
Iterating global reduction 5 with 1 rules applied. Total rules applied 193 place count 178 transition count 424
Discarding 1 places :
Symmetric choice reduction at 5 with 1 rule applications. Total rules 194 place count 177 transition count 422
Iterating global reduction 5 with 1 rules applied. Total rules applied 195 place count 177 transition count 422
Discarding 1 places :
Symmetric choice reduction at 5 with 1 rule applications. Total rules 196 place count 176 transition count 420
Iterating global reduction 5 with 1 rules applied. Total rules applied 197 place count 176 transition count 420
Drop transitions (Redundant composition of simpler transitions.) removed 14 transitions
Redundant transition composition rules discarded 14 transitions
Iterating global reduction 5 with 14 rules applied. Total rules applied 211 place count 176 transition count 406
Free-agglomeration rule applied 3 times.
Iterating global reduction 5 with 3 rules applied. Total rules applied 214 place count 176 transition count 403
Reduce places removed 3 places and 0 transitions.
Iterating post reduction 5 with 3 rules applied. Total rules applied 217 place count 173 transition count 403
Free-agglomeration rule (complex) applied 3 times.
Iterating global reduction 6 with 3 rules applied. Total rules applied 220 place count 173 transition count 509
Reduce places removed 3 places and 0 transitions.
Iterating post reduction 6 with 3 rules applied. Total rules applied 223 place count 170 transition count 509
Applied a total of 223 rules in 237 ms. Remains 170 /272 variables (removed 102) and now considering 509/520 (removed 11) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 238 ms. Remains : 170/272 places, 509/520 transitions.
Invariant property smplace_403 does not hold.
Invariant property smplace_402 does not hold.
Invariant property smplace_401 does not hold.
Invariant property smplace_400 does not hold.
Invariant property smplace_399 does not hold.
Invariant property smplace_398 does not hold.
Invariant property smplace_392 does not hold.
Invariant property smplace_391 does not hold.
Invariant property smplace_388 does not hold.
Invariant property smplace_387 does not hold.
Invariant property smplace_386 does not hold.
Invariant property smplace_385 does not hold.
Invariant property smplace_384 does not hold.
Invariant property smplace_383 does not hold.
Invariant property smplace_382 does not hold.
Invariant property smplace_357 does not hold.
Invariant property smplace_356 does not hold.
Invariant property smplace_355 does not hold.
Invariant property smplace_354 does not hold.
Invariant property smplace_353 does not hold.
Invariant property smplace_352 does not hold.
Invariant property smplace_351 does not hold.
Invariant property smplace_350 does not hold.
Invariant property smplace_349 does not hold.
Invariant property smplace_299 does not hold.
Invariant property smplace_298 does not hold.
Invariant property smplace_297 does not hold.
Invariant property smplace_296 does not hold.
SDD proceeding with computation,91 properties remain. new max is 131072
SDD size :6.29913e+07 after 2.08416e+08
RANDOM walk for 4000000 steps (149846 resets) in 40336 ms. (99 steps per ms) remains 31/63 properties
BEST_FIRST walk for 400002 steps (3933 resets) in 969 ms. (412 steps per ms) remains 31/31 properties
BEST_FIRST walk for 400004 steps (3928 resets) in 972 ms. (411 steps per ms) remains 31/31 properties
BEST_FIRST walk for 400003 steps (3894 resets) in 917 ms. (435 steps per ms) remains 31/31 properties
BEST_FIRST walk for 400002 steps (3954 resets) in 1196 ms. (334 steps per ms) remains 31/31 properties
BEST_FIRST walk for 400001 steps (3939 resets) in 953 ms. (419 steps per ms) remains 31/31 properties
BEST_FIRST walk for 400002 steps (3965 resets) in 945 ms. (422 steps per ms) remains 31/31 properties
BEST_FIRST walk for 400003 steps (4008 resets) in 840 ms. (475 steps per ms) remains 25/31 properties
BEST_FIRST walk for 400004 steps (3924 resets) in 1011 ms. (395 steps per ms) remains 25/25 properties
BEST_FIRST walk for 400004 steps (3954 resets) in 1001 ms. (399 steps per ms) remains 25/25 properties
BEST_FIRST walk for 400004 steps (3936 resets) in 924 ms. (432 steps per ms) remains 25/25 properties
BEST_FIRST walk for 400003 steps (3968 resets) in 975 ms. (409 steps per ms) remains 25/25 properties
BEST_FIRST walk for 400003 steps (3972 resets) in 940 ms. (425 steps per ms) remains 25/25 properties
BEST_FIRST walk for 400004 steps (3953 resets) in 929 ms. (430 steps per ms) remains 25/25 properties
BEST_FIRST walk for 400002 steps (3951 resets) in 877 ms. (455 steps per ms) remains 25/25 properties
BEST_FIRST walk for 400004 steps (3956 resets) in 1047 ms. (381 steps per ms) remains 25/25 properties
BEST_FIRST walk for 400003 steps (3941 resets) in 909 ms. (439 steps per ms) remains 25/25 properties
BEST_FIRST walk for 400002 steps (3974 resets) in 960 ms. (416 steps per ms) remains 25/25 properties
BEST_FIRST walk for 400003 steps (3885 resets) in 888 ms. (449 steps per ms) remains 24/25 properties
BEST_FIRST walk for 400001 steps (3992 resets) in 1214 ms. (329 steps per ms) remains 24/24 properties
BEST_FIRST walk for 400003 steps (3947 resets) in 1114 ms. (358 steps per ms) remains 24/24 properties
BEST_FIRST walk for 400002 steps (3982 resets) in 1078 ms. (370 steps per ms) remains 24/24 properties
BEST_FIRST walk for 400003 steps (3901 resets) in 1212 ms. (329 steps per ms) remains 24/24 properties
BEST_FIRST walk for 400002 steps (3975 resets) in 919 ms. (434 steps per ms) remains 24/24 properties
BEST_FIRST walk for 400003 steps (3971 resets) in 1089 ms. (366 steps per ms) remains 24/24 properties
[2026-05-24 09:34:23] [INFO ] Flow matrix only has 504 transitions (discarded 5 similar events)
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-13291526132144039070.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-9489996089722356834.kers'
[2026-05-24 09:34:23] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-13291526132144039070.kers, --Pflows, --basisKERS=/tmp/petrispot-output-9489996089722356834.kers]
Culled 0 columns in 0 ms.
// Phase 1: matrix 504 rows 170 cols 1818 entries
Finished phase 1 with 163 SingleSign rule and 0 generalized
[2026-05-24 09:34:23] [INFO ] Computed 7 invariants in 4 ms
Computed 7 P flows in 4 ms.
Exported basis to /tmp/petrispot-output-9489996089722356834.kers
Total runtime 5 ms.
[2026-05-24 09:34:23] [INFO ] State equation strengthened by 62 read => feed constraints.
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/24 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 24 unsolved
At refinement iteration 1 (OVERLAPS) 69/93 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 24 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/93 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 24 unsolved
At refinement iteration 3 (OVERLAPS) 67/160 variables, 5/7 constraints. Problems are: Problem set: 0 solved, 24 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/160 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 24 unsolved
At refinement iteration 5 (OVERLAPS) 502/662 variables, 160/167 constraints. Problems are: Problem set: 0 solved, 24 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/662 variables, 62/229 constraints. Problems are: Problem set: 0 solved, 24 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/662 variables, 0/229 constraints. Problems are: Problem set: 0 solved, 24 unsolved
At refinement iteration 8 (OVERLAPS) 11/673 variables, 9/238 constraints. Problems are: Problem set: 0 solved, 24 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/673 variables, 0/238 constraints. Problems are: Problem set: 0 solved, 24 unsolved
At refinement iteration 10 (OVERLAPS) 1/674 variables, 1/239 constraints. Problems are: Problem set: 0 solved, 24 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/674 variables, 0/239 constraints. Problems are: Problem set: 0 solved, 24 unsolved
At refinement iteration 12 (OVERLAPS) 0/674 variables, 0/239 constraints. Problems are: Problem set: 0 solved, 24 unsolved
No progress, stopping.
After SMT solving in domain Real declared 674/674 variables, and 239 constraints, problems are : Problem set: 0 solved, 24 unsolved in 1753 ms.
Refiners :[Positive P Invariants (semi-flows): 7/7 constraints, State Equation: 170/170 constraints, ReadFeed: 62/62 constraints, PredecessorRefiner: 24/24 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 24 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/24 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 24 unsolved
At refinement iteration 1 (OVERLAPS) 69/93 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 24 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/93 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 24 unsolved
At refinement iteration 3 (OVERLAPS) 67/160 variables, 5/7 constraints. Problems are: Problem set: 0 solved, 24 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/160 variables, 5/12 constraints. Problems are: Problem set: 0 solved, 24 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/160 variables, 6/18 constraints. Problems are: Problem set: 0 solved, 24 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/160 variables, 1/19 constraints. Problems are: Problem set: 0 solved, 24 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/160 variables, 0/19 constraints. Problems are: Problem set: 0 solved, 24 unsolved
At refinement iteration 8 (OVERLAPS) 502/662 variables, 160/179 constraints. Problems are: Problem set: 0 solved, 24 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/662 variables, 62/241 constraints. Problems are: Problem set: 0 solved, 24 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/662 variables, 24/265 constraints. Problems are: Problem set: 0 solved, 24 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/662 variables, 1/266 constraints. Problems are: Problem set: 0 solved, 24 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/662 variables, 1/267 constraints. Problems are: Problem set: 0 solved, 24 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/662 variables, 0/267 constraints. Problems are: Problem set: 0 solved, 24 unsolved
At refinement iteration 14 (OVERLAPS) 11/673 variables, 9/276 constraints. Problems are: Problem set: 0 solved, 24 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/673 variables, 0/276 constraints. Problems are: Problem set: 0 solved, 24 unsolved
At refinement iteration 16 (OVERLAPS) 1/674 variables, 1/277 constraints. Problems are: Problem set: 0 solved, 24 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/674 variables, 0/277 constraints. Problems are: Problem set: 0 solved, 24 unsolved
Invariant property smplace_397 does not hold.
Invariant property smplace_396 does not hold.
Invariant property smplace_394 does not hold.
Invariant property smplace_390 does not hold.
Invariant property smplace_389 does not hold.
Invariant property smplace_381 does not hold.
Invariant property smplace_379 does not hold.
Invariant property smplace_378 does not hold.
Invariant property smplace_376 does not hold.
Invariant property smplace_374 does not hold.
Invariant property smplace_372 does not hold.
Invariant property smplace_363 does not hold.
Invariant property smplace_348 does not hold.
Invariant property smplace_347 does not hold.
Invariant property smplace_346 does not hold.
Invariant property smplace_345 does not hold.
Invariant property smplace_344 does not hold.
Invariant property smplace_343 does not hold.
Invariant property smplace_342 does not hold.
Invariant property smplace_341 does not hold.
Invariant property smplace_340 does not hold.
Invariant property smplace_339 does not hold.
Invariant property smplace_338 does not hold.
Invariant property smplace_337 does not hold.
Invariant property smplace_336 does not hold.
Invariant property smplace_335 does not hold.
Invariant property smplace_334 does not hold.
Invariant property smplace_333 does not hold.
Invariant property smplace_332 does not hold.
Invariant property smplace_331 does not hold.
Invariant property smplace_330 does not hold.
Invariant property smplace_329 does not hold.
Invariant property smplace_328 does not hold.
At refinement iteration 18 (OVERLAPS) 0/674 variables, 0/277 constraints. Problems are: Problem set: 4 solved, 20 unsolved
No progress, stopping.
After SMT solving in domain Int declared 674/674 variables, and 277 constraints, problems are : Problem set: 4 solved, 20 unsolved in 9744 ms.
Refiners :[Positive P Invariants (semi-flows): 7/7 constraints, State Equation: 170/170 constraints, ReadFeed: 62/62 constraints, PredecessorRefiner: 24/24 constraints, Known Traps: 14/14 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 11521ms problems are : Problem set: 4 solved, 20 unsolved
Invariant property smplace_310 does not hold.
Invariant property smplace_309 does not hold.
Invariant property smplace_308 does not hold.
Invariant property smplace_307 does not hold.
Invariant property smplace_306 does not hold.
Invariant property smplace_305 does not hold.
Invariant property smplace_304 does not hold.
Invariant property smplace_303 does not hold.
Invariant property smplace_302 does not hold.
Invariant property smplace_301 does not hold.
Invariant property smplace_300 does not hold.
Invariant property smplace_293 does not hold.
Invariant property smplace_277 does not hold.
Invariant property smplace_276 does not hold.
Invariant property smplace_275 does not hold.
Invariant property smplace_274 does not hold.
Invariant property smplace_273 does not hold.
Invariant property smplace_272 does not hold.
Invariant property smplace_271 does not hold.
Invariant property smplace_268 does not hold.
SDD proceeding with computation,38 properties remain. new max is 131072
SDD size :2.08416e+08 after 6.41076e+09
Parikh walk visited 0 properties in 2349 ms.
Support contains 20 out of 170 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 170/170 places, 509/509 transitions.
Graph (complete) has 805 edges and 170 vertex of which 169 are kept as prefixes of interest. Removing 1 places using SCC suffix rule.3 ms
Discarding 1 places :
Also discarding 0 output transitions
Drop transitions (Empty/Sink Transition effects.) removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 3 transitions
Trivial Post-agglo rules discarded 3 transitions
Performed 3 trivial Post agglomeration. Transition count delta: 3
Iterating post reduction 0 with 4 rules applied. Total rules applied 5 place count 169 transition count 505
Reduce places removed 3 places and 0 transitions.
Iterating post reduction 1 with 3 rules applied. Total rules applied 8 place count 166 transition count 505
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 1 Pre rules applied. Total rules applied 8 place count 166 transition count 504
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 2 with 2 rules applied. Total rules applied 10 place count 165 transition count 504
Discarding 7 places :
Symmetric choice reduction at 2 with 7 rule applications. Total rules 17 place count 158 transition count 497
Iterating global reduction 2 with 7 rules applied. Total rules applied 24 place count 158 transition count 497
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 1 Pre rules applied. Total rules applied 24 place count 158 transition count 496
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 2 with 2 rules applied. Total rules applied 26 place count 157 transition count 496
Discarding 4 places :
Symmetric choice reduction at 2 with 4 rule applications. Total rules 30 place count 153 transition count 489
Iterating global reduction 2 with 4 rules applied. Total rules applied 34 place count 153 transition count 489
Performed 7 Post agglomeration using F-continuation condition.Transition count delta: 7
Deduced a syphon composed of 7 places in 0 ms
Reduce places removed 7 places and 0 transitions.
Iterating global reduction 2 with 14 rules applied. Total rules applied 48 place count 146 transition count 482
Discarding 2 places :
Symmetric choice reduction at 2 with 2 rule applications. Total rules 50 place count 144 transition count 474
Iterating global reduction 2 with 2 rules applied. Total rules applied 52 place count 144 transition count 474
Performed 3 Post agglomeration using F-continuation condition.Transition count delta: -6
Deduced a syphon composed of 3 places in 0 ms
Reduce places removed 3 places and 0 transitions.
Iterating global reduction 2 with 6 rules applied. Total rules applied 58 place count 141 transition count 480
Drop transitions (Redundant composition of simpler transitions.) removed 2 transitions
Redundant transition composition rules discarded 2 transitions
Iterating global reduction 2 with 2 rules applied. Total rules applied 60 place count 141 transition count 478
Free-agglomeration rule applied 2 times.
Iterating global reduction 2 with 2 rules applied. Total rules applied 62 place count 141 transition count 476
Reduce places removed 2 places and 0 transitions.
Iterating post reduction 2 with 2 rules applied. Total rules applied 64 place count 139 transition count 476
Partial Free-agglomeration rule applied 1 times.
Drop transitions (Partial Free agglomeration) removed 1 transitions
Iterating global reduction 3 with 1 rules applied. Total rules applied 65 place count 139 transition count 476
Applied a total of 65 rules in 118 ms. Remains 139 /170 variables (removed 31) and now considering 476/509 (removed 33) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 118 ms. Remains : 139/170 places, 476/509 transitions.
RANDOM walk for 4000000 steps (149971 resets) in 30456 ms. (131 steps per ms) remains 19/20 properties
BEST_FIRST walk for 400004 steps (3952 resets) in 819 ms. (487 steps per ms) remains 19/19 properties
BEST_FIRST walk for 400003 steps (3985 resets) in 928 ms. (430 steps per ms) remains 19/19 properties
BEST_FIRST walk for 400003 steps (3931 resets) in 813 ms. (491 steps per ms) remains 19/19 properties
BEST_FIRST walk for 400003 steps (3979 resets) in 921 ms. (433 steps per ms) remains 19/19 properties
BEST_FIRST walk for 400004 steps (3957 resets) in 1108 ms. (360 steps per ms) remains 19/19 properties
BEST_FIRST walk for 400002 steps (4004 resets) in 1008 ms. (396 steps per ms) remains 19/19 properties
BEST_FIRST walk for 400003 steps (3948 resets) in 1062 ms. (376 steps per ms) remains 19/19 properties
BEST_FIRST walk for 400003 steps (3917 resets) in 1018 ms. (392 steps per ms) remains 19/19 properties
BEST_FIRST walk for 400003 steps (3960 resets) in 1049 ms. (380 steps per ms) remains 19/19 properties
BEST_FIRST walk for 400002 steps (3919 resets) in 950 ms. (420 steps per ms) remains 19/19 properties
BEST_FIRST walk for 400004 steps (3945 resets) in 764 ms. (522 steps per ms) remains 19/19 properties
BEST_FIRST walk for 400002 steps (3947 resets) in 1149 ms. (347 steps per ms) remains 19/19 properties
BEST_FIRST walk for 400003 steps (3949 resets) in 889 ms. (449 steps per ms) remains 19/19 properties
BEST_FIRST walk for 400003 steps (3953 resets) in 913 ms. (437 steps per ms) remains 19/19 properties
BEST_FIRST walk for 400004 steps (3975 resets) in 920 ms. (434 steps per ms) remains 19/19 properties
BEST_FIRST walk for 400001 steps (3909 resets) in 841 ms. (475 steps per ms) remains 19/19 properties
BEST_FIRST walk for 400002 steps (3979 resets) in 1176 ms. (339 steps per ms) remains 19/19 properties
BEST_FIRST walk for 400002 steps (3925 resets) in 1237 ms. (323 steps per ms) remains 19/19 properties
BEST_FIRST walk for 400003 steps (3979 resets) in 972 ms. (411 steps per ms) remains 19/19 properties
Invariant property smplace_327 does not hold.
Invariant property smplace_326 does not hold.
Invariant property smplace_325 does not hold.
Invariant property smplace_324 does not hold.
Invariant property smplace_323 does not hold.
Invariant property smplace_322 does not hold.
Invariant property smplace_321 does not hold.
Invariant property smplace_320 does not hold.
Invariant property smplace_319 does not hold.
Invariant property smplace_318 does not hold.
Invariant property smplace_317 does not hold.
Invariant property smplace_316 does not hold.
Invariant property smplace_315 does not hold.
Invariant property smplace_314 does not hold.
Invariant property smplace_313 does not hold.
Invariant property smplace_311 does not hold.
Invariant property smplace_288 does not hold.
Invariant property smplace_270 does not hold.
Invariant property smplace_269 does not hold.
SDD proceeding with computation,19 properties remain. new max is 131072
SDD size :6.41076e+09 after 8.8534e+10
SDD proceeding with computation,19 properties remain. new max is 262144
SDD size :8.8534e+10 after 8.98606e+10
Finished probabilistic random walk after 4731475 steps, run visited all 19 properties in 38376 ms. (steps per millisecond=123 )
Probabilistic random walk after 4731475 steps, saw 1257273 distinct states, run finished after 38384 ms. (steps per millisecond=123 ) properties seen :19
ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
Able to resolve query StableMarking after proving 373 properties.
FORMULA StableMarking FALSE TECHNIQUES RANDOM_WALK PROBABILISTIC_WALK MARKED_SUFFIX_TEST DECISION_DIAGRAMS TRIVIAL_UNMARKED_SCC_TEST COLLATERAL_PROCESSING BESTFIRST_WALK TOPOLOGICAL
Total runtime 173225 ms.

BK_STOP 1779615332622

--------------------
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
+ [[ StableMarking = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution StableMarking -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 1800
+ ulimit -s 65536
+ [[ -z '' ]]
+ export LTSMIN_MEM_SIZE=8589934592
+ LTSMIN_MEM_SIZE=8589934592
++ sed s/.jar//
++ perl -pe 's/.*\.//g'
++ ls /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202604301425.jar
+ VERSION=202604301425
+ echo 'Running Version 202604301425'
+ /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/its-tools -pnfolder /home/mcc/execution -examination StableMarking -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 1800

Sequence of Actions to be Executed by the VM

This is useful if one wants to reexecute the tool in the VM from the submitted image disk.

set -x
# this is for BenchKit: configuration of major elements for the test
export BK_INPUT="FireWire-PT-18"
export BK_EXAMINATION="StableMarking"
export BK_TOOL="itstools"
export BK_RESULT_DIR="/tmp/BK_RESULTS/OUTPUTS"
export BK_TIME_CONFINEMENT="1800"
export BK_MEMORY_CONFINEMENT="16384"
export BK_BIN_PATH="/home/mcc/BenchKit/bin/"

# this is specific to your benchmark or test

export BIN_DIR="$HOME/BenchKit/bin"

# remove the execution directoty if it exists (to avoid increse of .vmdk images)
if [ -d execution ] ; then
rm -rf execution
fi

# this is for BenchKit: explicit launching of the test
echo "====================================================================="
echo " Generated by BenchKit 2-5973"
echo " Executing tool itstools"
echo " Input is FireWire-PT-18, examination is StableMarking"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r136-smll-177955811000178"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/FireWire-PT-18.tgz
mv FireWire-PT-18 execution
cd execution
if [ "StableMarking" = "ReachabilityDeadlock" ] || [ "StableMarking" = "UpperBounds" ] || [ "StableMarking" = "QuasiLiveness" ] || [ "StableMarking" = "StableMarking" ] || [ "StableMarking" = "Liveness" ] || [ "StableMarking" = "OneSafe" ] || [ "StableMarking" = "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 [ "StableMarking" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "StableMarking" != "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 "StableMarking.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 '' StableMarking.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "StableMarking" = "ReachabilityDeadlock" ] || [ "StableMarking" = "QuasiLiveness" ] || [ "StableMarking" = "StableMarking" ] || [ "StableMarking" = "Liveness" ] || [ "StableMarking" = "OneSafe" ] ; then
echo "FORMULA_NAME StableMarking"
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 ;