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.r066-tall-177946967700439.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2026-input.qcow2 backing_fmt=qcow2 cluster_size=65536 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
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=====================================================================
Generated by BenchKit 2-5973
Executing tool itstools
Input is CO4-PT-20, examination is ReachabilityFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r066-tall-177946967700439
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 772K
-rw-r--r-- 1 mcc users 5.9K Mar 6 13:27 CTLCardinality.txt
-rw-r--r-- 1 mcc users 62K Mar 6 13:27 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.3K Mar 6 13:27 CTLFireability.txt
-rw-r--r-- 1 mcc users 48K Mar 6 13:27 CTLFireability.xml
-rw-r--r-- 1 mcc users 3.6K Mar 15 08:33 LTLCardinality.txt
-rw-r--r-- 1 mcc users 27K Mar 15 08:33 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.2K Mar 15 08:33 LTLFireability.txt
-rw-r--r-- 1 mcc users 19K Mar 15 08:33 LTLFireability.xml
-rw-r--r-- 1 mcc users 15K Mar 6 13:27 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 158K Mar 6 13:27 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 6.2K Mar 6 13:27 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 48K Mar 6 13:27 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.5K Mar 15 08:33 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.5K Mar 15 08:33 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 336K 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

echo here is the order used to build the result vector(from xml file)
FORMULA_NAME CO4-PT-20-ReachabilityFireability-2024-00
FORMULA_NAME CO4-PT-20-ReachabilityFireability-2024-01
FORMULA_NAME CO4-PT-20-ReachabilityFireability-2024-02
FORMULA_NAME CO4-PT-20-ReachabilityFireability-2024-03
FORMULA_NAME CO4-PT-20-ReachabilityFireability-2024-04
FORMULA_NAME CO4-PT-20-ReachabilityFireability-2024-05
FORMULA_NAME CO4-PT-20-ReachabilityFireability-2024-06
FORMULA_NAME CO4-PT-20-ReachabilityFireability-2024-07
FORMULA_NAME CO4-PT-20-ReachabilityFireability-2024-08
FORMULA_NAME CO4-PT-20-ReachabilityFireability-2024-09
FORMULA_NAME CO4-PT-20-ReachabilityFireability-2024-10
FORMULA_NAME CO4-PT-20-ReachabilityFireability-2024-11
FORMULA_NAME CO4-PT-20-ReachabilityFireability-2024-12
FORMULA_NAME CO4-PT-20-ReachabilityFireability-2024-13
FORMULA_NAME CO4-PT-20-ReachabilityFireability-2024-14
FORMULA_NAME CO4-PT-20-ReachabilityFireability-2024-15

=== Now, execution of the tool begins

BK_START 1779527447895

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=ReachabilityFireability
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=CO4-PT-20
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
ReachabilityFireability PT
Running Version 202604301425
[2026-05-23 09:10:49] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, ReachabilityFireability, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2026-05-23 09:10:49] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-23 09:10:49] [INFO ] Load time of PNML (sax parser for PT used): 106 ms
[2026-05-23 09:10:49] [INFO ] Transformed 1178 places.
[2026-05-23 09:10:49] [INFO ] Transformed 1463 transitions.
[2026-05-23 09:10:49] [INFO ] Found NUPN structural information;
[2026-05-23 09:10:49] [INFO ] Parsed PT model containing 1178 places and 1463 transitions and 3734 arcs in 200 ms.
Parsed 16 properties from file /home/mcc/execution/ReachabilityFireability.xml in 12 ms.
Working with output stream class java.io.PrintStream
Deduced a syphon composed of 187 places in 15 ms
Reduce places removed 187 places and 251 transitions.
FORMULA CO4-PT-20-ReachabilityFireability-2024-00 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA CO4-PT-20-ReachabilityFireability-2024-04 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
[2026-05-23 09:10:49] [INFO ] Flatten gal took : 234 ms
[2026-05-23 09:10:49] [INFO ] Flatten gal took : 79 ms
RANDOM walk for 40000 steps (683 resets) in 2294 ms. (17 steps per ms) remains 10/14 properties
FORMULA CO4-PT-20-ReachabilityFireability-2024-15 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA CO4-PT-20-ReachabilityFireability-2024-13 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA CO4-PT-20-ReachabilityFireability-2024-02 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA CO4-PT-20-ReachabilityFireability-2024-01 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
[2026-05-23 09:10:50] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality16624778304040300058.gal : 96 ms
[2026-05-23 09:10:50] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality10272768921892377287.prop : 1 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/ReachabilityCardinality16624778304040300058.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality10272768921892377287.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 ...330
BEST_FIRST walk for 40003 steps (83 resets) in 520 ms. (76 steps per ms) remains 10/10 properties
BEST_FIRST walk for 40003 steps (144 resets) in 174 ms. (228 steps per ms) remains 10/10 properties
BEST_FIRST walk for 40004 steps (137 resets) in 94 ms. (421 steps per ms) remains 10/10 properties
Loading property file /tmp/ReachabilityCardinality10272768921892377287.prop.
BEST_FIRST walk for 40004 steps (140 resets) in 142 ms. (279 steps per ms) remains 10/10 properties
BEST_FIRST walk for 40003 steps (138 resets) in 95 ms. (416 steps per ms) remains 10/10 properties
BEST_FIRST walk for 40003 steps (140 resets) in 206 ms. (193 steps per ms) remains 10/10 properties
BEST_FIRST walk for 40004 steps (96 resets) in 131 ms. (303 steps per ms) remains 9/10 properties
FORMULA CO4-PT-20-ReachabilityFireability-2024-06 TRUE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 40004 steps (142 resets) in 115 ms. (344 steps per ms) remains 9/9 properties
BEST_FIRST walk for 40003 steps (142 resets) in 86 ms. (459 steps per ms) remains 9/9 properties
BEST_FIRST walk for 40004 steps (144 resets) in 86 ms. (459 steps per ms) remains 9/9 properties
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-8157751602254137843.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-16897420508370573875.kers'
[2026-05-23 09:10:50] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-8157751602254137843.kers, --Pflows, --basisKERS=/tmp/petrispot-output-16897420508370573875.kers]
Culled 0 columns in 0 ms.
// Phase 1: matrix 1212 rows 991 cols 3018 entries
Finished phase 1 with 969 SingleSign rule and 10 generalized
[2026-05-23 09:10:50] [INFO ] Computed 12 invariants in 9 ms
Computed 12 P flows in 12 ms.
Exported basis to /tmp/petrispot-output-16897420508370573875.kers
Total runtime 14 ms.
Excessive predecessor constraint size, skipping predecessor.
SDD proceeding with computation,10 properties remain. new max is 4
SDD size :1 after 5
SDD proceeding with computation,10 properties remain. new max is 8
SDD size :5 after 8
SDD proceeding with computation,10 properties remain. new max is 16
SDD size :8 after 14
SDD proceeding with computation,10 properties remain. new max is 32
SDD size :14 after 39
SDD proceeding with computation,10 properties remain. new max is 64
SDD size :39 after 48
SDD proceeding with computation,10 properties remain. new max is 128
SDD size :48 after 60
SDD proceeding with computation,10 properties remain. new max is 256
SDD size :60 after 75
SDD proceeding with computation,10 properties remain. new max is 512
SDD size :75 after 108
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/75 variables, 75/75 constraints. Problems are: Problem set: 0 solved, 9 unsolved
SDD proceeding with computation,10 properties remain. new max is 1024
SDD size :108 after 175
At refinement iteration 1 (INCLUDED_ONLY) 0/75 variables, 0/75 constraints. Problems are: Problem set: 0 solved, 9 unsolved
SDD proceeding with computation,10 properties remain. new max is 2048
SDD size :175 after 5111
Reachability property CO4-PT-20-ReachabilityFireability-2024-07 is true.
FORMULA CO4-PT-20-ReachabilityFireability-2024-07 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING
SDD proceeding with computation,9 properties remain. new max is 2048
SDD size :5111 after 5360
SDD proceeding with computation,9 properties remain. new max is 4096
SDD size :5360 after 14553
Problem CO4-PT-20-ReachabilityFireability-2024-12 is UNSAT
FORMULA CO4-PT-20-ReachabilityFireability-2024-12 FALSE TECHNIQUES SMT_REFINEMENT
At refinement iteration 2 (OVERLAPS) 845/920 variables, 10/85 constraints. Problems are: Problem set: 2 solved, 7 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/920 variables, 845/930 constraints. Problems are: Problem set: 2 solved, 7 unsolved
SDD proceeding with computation,9 properties remain. new max is 8192
SDD size :14553 after 375839
At refinement iteration 4 (INCLUDED_ONLY) 0/920 variables, 0/930 constraints. Problems are: Problem set: 2 solved, 7 unsolved
At refinement iteration 5 (OVERLAPS) 1/921 variables, 1/931 constraints. Problems are: Problem set: 2 solved, 7 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/921 variables, 1/932 constraints. Problems are: Problem set: 2 solved, 7 unsolved
SDD proceeding with computation,9 properties remain. new max is 16384
SDD size :375839 after 2.4738e+06
At refinement iteration 7 (INCLUDED_ONLY) 0/921 variables, 0/932 constraints. Problems are: Problem set: 2 solved, 7 unsolved
At refinement iteration 8 (OVERLAPS) 70/991 variables, 1/933 constraints. Problems are: Problem set: 2 solved, 7 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/991 variables, 70/1003 constraints. Problems are: Problem set: 2 solved, 7 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/991 variables, 0/1003 constraints. Problems are: Problem set: 2 solved, 7 unsolved
At refinement iteration 11 (OVERLAPS) 1212/2203 variables, 991/1994 constraints. Problems are: Problem set: 2 solved, 7 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/2203 variables, 0/1994 constraints. Problems are: Problem set: 2 solved, 7 unsolved
At refinement iteration 13 (OVERLAPS) 0/2203 variables, 0/1994 constraints. Problems are: Problem set: 2 solved, 7 unsolved
No progress, stopping.
After SMT solving in domain Real declared 2203/2203 variables, and 1994 constraints, problems are : Problem set: 2 solved, 7 unsolved in 3241 ms.
Refiners :[Domain max(s): 991/991 constraints, Positive P Invariants (semi-flows): 11/11 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 991/991 constraints, PredecessorRefiner: 9/6 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 2 solved, 7 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/71 variables, 71/71 constraints. Problems are: Problem set: 2 solved, 7 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/71 variables, 0/71 constraints. Problems are: Problem set: 2 solved, 7 unsolved
At refinement iteration 2 (OVERLAPS) 849/920 variables, 10/81 constraints. Problems are: Problem set: 2 solved, 7 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/920 variables, 849/930 constraints. Problems are: Problem set: 2 solved, 7 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/920 variables, 1/931 constraints. Problems are: Problem set: 2 solved, 7 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/920 variables, 0/931 constraints. Problems are: Problem set: 2 solved, 7 unsolved
At refinement iteration 6 (OVERLAPS) 1/921 variables, 1/932 constraints. Problems are: Problem set: 2 solved, 7 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/921 variables, 1/933 constraints. Problems are: Problem set: 2 solved, 7 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/921 variables, 0/933 constraints. Problems are: Problem set: 2 solved, 7 unsolved
At refinement iteration 9 (OVERLAPS) 70/991 variables, 1/934 constraints. Problems are: Problem set: 2 solved, 7 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/991 variables, 70/1004 constraints. Problems are: Problem set: 2 solved, 7 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/991 variables, 0/1004 constraints. Problems are: Problem set: 2 solved, 7 unsolved
At refinement iteration 12 (OVERLAPS) 1212/2203 variables, 991/1995 constraints. Problems are: Problem set: 2 solved, 7 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/2203 variables, 4/1999 constraints. Problems are: Problem set: 2 solved, 7 unsolved
Error getting values : (error "Error writing to Z3 solver: java.io.IOException: Broken pipe")
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 2203/2203 variables, and 1999 constraints, problems are : Problem set: 2 solved, 7 unsolved in 5024 ms.
Refiners :[Domain max(s): 991/991 constraints, Positive P Invariants (semi-flows): 11/11 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 991/991 constraints, PredecessorRefiner: 7/6 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 8425ms problems are : Problem set: 2 solved, 7 unsolved
Skipping Parikh replay, no witness traces provided.
Support contains 71 out of 991 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 991/991 places, 1212/1212 transitions.
Graph (trivial) has 787 edges and 991 vertex of which 3 / 991 are part of one of the 1 SCC in 7 ms
Free SCC test removed 2 places
Drop transitions (Empty/Sink Transition effects.) removed 3 transitions
Reduce isomorphic transitions removed 3 transitions.
Graph (complete) has 1661 edges and 989 vertex of which 946 are kept as prefixes of interest. Removing 43 places using SCC suffix rule.3 ms
Discarding 43 places :
Also discarding 23 output transitions
Drop transitions (Output transitions of discarded places.) removed 23 transitions
Drop transitions (Empty/Sink Transition effects.) removed 14 transitions
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 16 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 422 transitions
Trivial Post-agglo rules discarded 422 transitions
Performed 422 trivial Post agglomeration. Transition count delta: 422
Iterating post reduction 0 with 438 rules applied. Total rules applied 440 place count 946 transition count 748
Reduce places removed 422 places and 0 transitions.
Ensure Unique test removed 4 transitions
Reduce isomorphic transitions removed 4 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 1 with 429 rules applied. Total rules applied 869 place count 524 transition count 741
Reduce places removed 3 places and 0 transitions.
Ensure Unique test removed 3 transitions
Reduce isomorphic transitions removed 3 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 4 transitions
Trivial Post-agglo rules discarded 4 transitions
Performed 4 trivial Post agglomeration. Transition count delta: 4
Iterating post reduction 2 with 10 rules applied. Total rules applied 879 place count 521 transition count 734
Reduce places removed 4 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 3 with 6 rules applied. Total rules applied 885 place count 517 transition count 732
Reduce places removed 1 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 4 with 3 rules applied. Total rules applied 888 place count 516 transition count 730
Reduce places removed 1 places and 0 transitions.
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Performed 54 Post agglomeration using F-continuation condition.Transition count delta: 54
Iterating post reduction 5 with 56 rules applied. Total rules applied 944 place count 515 transition count 675
Reduce places removed 54 places and 0 transitions.
Iterating post reduction 6 with 54 rules applied. Total rules applied 998 place count 461 transition count 675
Performed 29 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 7 with 29 Pre rules applied. Total rules applied 998 place count 461 transition count 646
Deduced a syphon composed of 29 places in 3 ms
Reduce places removed 29 places and 0 transitions.
Iterating global reduction 7 with 58 rules applied. Total rules applied 1056 place count 432 transition count 646
Discarding 92 places :
Symmetric choice reduction at 7 with 92 rule applications. Total rules 1148 place count 340 transition count 552
Iterating global reduction 7 with 92 rules applied. Total rules applied 1240 place count 340 transition count 552
Ensure Unique test removed 9 transitions
Reduce isomorphic transitions removed 9 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 5 transitions
Trivial Post-agglo rules discarded 5 transitions
Performed 5 trivial Post agglomeration. Transition count delta: 5
Iterating post reduction 7 with 14 rules applied. Total rules applied 1254 place count 340 transition count 538
Reduce places removed 5 places and 0 transitions.
Ensure Unique test removed 5 transitions
Reduce isomorphic transitions removed 5 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 8 with 11 rules applied. Total rules applied 1265 place count 335 transition count 532
Reduce places removed 1 places and 0 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Iterating post reduction 9 with 2 rules applied. Total rules applied 1267 place count 334 transition count 531
Reduce places removed 1 places and 0 transitions.
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 10 with 2 rules applied. Total rules applied 1269 place count 333 transition count 530
Performed 4 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 11 with 4 Pre rules applied. Total rules applied 1269 place count 333 transition count 526
Deduced a syphon composed of 4 places in 1 ms
Reduce places removed 4 places and 0 transitions.
Iterating global reduction 11 with 8 rules applied. Total rules applied 1277 place count 329 transition count 526
Discarding 21 places :
Symmetric choice reduction at 11 with 21 rule applications. Total rules 1298 place count 308 transition count 489
Iterating global reduction 11 with 21 rules applied. Total rules applied 1319 place count 308 transition count 489
Ensure Unique test removed 3 transitions
Reduce isomorphic transitions removed 3 transitions.
Iterating post reduction 11 with 3 rules applied. Total rules applied 1322 place count 308 transition count 486
Discarding 1 places :
Symmetric choice reduction at 12 with 1 rule applications. Total rules 1323 place count 307 transition count 485
Iterating global reduction 12 with 1 rules applied. Total rules applied 1324 place count 307 transition count 485
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 12 with 1 rules applied. Total rules applied 1325 place count 307 transition count 484
Performed 61 Post agglomeration using F-continuation condition with reduction of 2 identical transitions.
Deduced a syphon composed of 61 places in 1 ms
Reduce places removed 61 places and 0 transitions.
Iterating global reduction 13 with 122 rules applied. Total rules applied 1447 place count 246 transition count 421
Ensure Unique test removed 8 transitions
Reduce isomorphic transitions removed 8 transitions.
Iterating post reduction 13 with 8 rules applied. Total rules applied 1455 place count 246 transition count 413
Performed 33 Post agglomeration using F-continuation condition.Transition count delta: -35
Deduced a syphon composed of 33 places in 1 ms
Reduce places removed 33 places and 0 transitions.
Iterating global reduction 14 with 66 rules applied. Total rules applied 1521 place count 213 transition count 448
Ensure Unique test removed 9 transitions
Reduce isomorphic transitions removed 9 transitions.
Iterating post reduction 14 with 9 rules applied. Total rules applied 1530 place count 213 transition count 439
Discarding 13 places :
Symmetric choice reduction at 15 with 13 rule applications. Total rules 1543 place count 200 transition count 387
Iterating global reduction 15 with 13 rules applied. Total rules applied 1556 place count 200 transition count 387
Ensure Unique test removed 3 transitions
Reduce isomorphic transitions removed 3 transitions.
Iterating post reduction 15 with 3 rules applied. Total rules applied 1559 place count 200 transition count 384
Discarding 1 places :
Symmetric choice reduction at 16 with 1 rule applications. Total rules 1560 place count 199 transition count 378
Iterating global reduction 16 with 1 rules applied. Total rules applied 1561 place count 199 transition count 378
Drop transitions (Redundant composition of simpler transitions.) removed 12 transitions
Redundant transition composition rules discarded 12 transitions
Iterating global reduction 16 with 12 rules applied. Total rules applied 1573 place count 199 transition count 366
Free-agglomeration rule applied 21 times.
Iterating global reduction 16 with 21 rules applied. Total rules applied 1594 place count 199 transition count 345
Reduce places removed 21 places and 0 transitions.
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 16 with 22 rules applied. Total rules applied 1616 place count 178 transition count 344
Partial Free-agglomeration rule applied 5 times.
Drop transitions (Partial Free agglomeration) removed 5 transitions
Iterating global reduction 17 with 5 rules applied. Total rules applied 1621 place count 178 transition count 344
Partial Post-agglomeration rule applied 3 times.
Drop transitions (Partial Post agglomeration) removed 3 transitions
Iterating global reduction 17 with 3 rules applied. Total rules applied 1624 place count 178 transition count 344
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 17 with 1 rules applied. Total rules applied 1625 place count 177 transition count 343
Applied a total of 1625 rules in 281 ms. Remains 177 /991 variables (removed 814) and now considering 343/1212 (removed 869) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 288 ms. Remains : 177/991 places, 343/1212 transitions.
RANDOM walk for 40000 steps (13 resets) in 552 ms. (72 steps per ms) remains 6/7 properties
FORMULA CO4-PT-20-ReachabilityFireability-2024-11 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
BEST_FIRST walk for 40003 steps (10 resets) in 141 ms. (281 steps per ms) remains 6/6 properties
BEST_FIRST walk for 40002 steps (10 resets) in 185 ms. (215 steps per ms) remains 6/6 properties
BEST_FIRST walk for 40003 steps (9 resets) in 154 ms. (258 steps per ms) remains 6/6 properties
BEST_FIRST walk for 40002 steps (8 resets) in 184 ms. (216 steps per ms) remains 6/6 properties
BEST_FIRST walk for 40004 steps (10 resets) in 117 ms. (339 steps per ms) remains 6/6 properties
BEST_FIRST walk for 40002 steps (12 resets) in 136 ms. (291 steps per ms) remains 6/6 properties
[2026-05-23 09:10:59] [INFO ] Flow matrix only has 325 transitions (discarded 18 similar events)
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-17875567886445483408.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-12471448626534105125.kers'
[2026-05-23 09:10:59] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-17875567886445483408.kers, --Pflows, --basisKERS=/tmp/petrispot-output-12471448626534105125.kers]
Culled 0 columns in 0 ms.
// Phase 1: matrix 325 rows 177 cols 1109 entries
Finished phase 1 with 168 SingleSign rule and 1 generalized
[2026-05-23 09:10:59] [INFO ] Computed 8 invariants in 1 ms
Computed 8 P flows in 2 ms.
Exported basis to /tmp/petrispot-output-12471448626534105125.kers
Total runtime 2 ms.
[2026-05-23 09:10:59] [INFO ] State equation strengthened by 4 read => feed constraints.
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/60 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 1 (OVERLAPS) 73/133 variables, 8/8 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/133 variables, 0/8 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 3 (OVERLAPS) 311/444 variables, 133/141 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/444 variables, 4/145 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/444 variables, 0/145 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 6 (OVERLAPS) 49/493 variables, 38/183 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/493 variables, 0/183 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 8 (OVERLAPS) 8/501 variables, 5/188 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/501 variables, 0/188 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 10 (OVERLAPS) 1/502 variables, 1/189 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/502 variables, 0/189 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 12 (OVERLAPS) 0/502 variables, 0/189 constraints. Problems are: Problem set: 0 solved, 6 unsolved
No progress, stopping.
After SMT solving in domain Real declared 502/502 variables, and 189 constraints, problems are : Problem set: 0 solved, 6 unsolved in 560 ms.
Refiners :[Generalized P Invariants (flows): 8/8 constraints, State Equation: 177/177 constraints, ReadFeed: 4/4 constraints, PredecessorRefiner: 6/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 6 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/60 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 1 (OVERLAPS) 73/133 variables, 8/8 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/133 variables, 0/8 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 3 (OVERLAPS) 311/444 variables, 133/141 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/444 variables, 4/145 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/444 variables, 2/147 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/444 variables, 0/147 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 7 (OVERLAPS) 49/493 variables, 38/185 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/493 variables, 1/186 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/493 variables, 0/186 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 10 (OVERLAPS) 8/501 variables, 5/191 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/501 variables, 0/191 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 12 (OVERLAPS) 1/502 variables, 1/192 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/502 variables, 0/192 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 14 (OVERLAPS) 0/502 variables, 0/192 constraints. Problems are: Problem set: 0 solved, 6 unsolved
No progress, stopping.
After SMT solving in domain Int declared 502/502 variables, and 192 constraints, problems are : Problem set: 0 solved, 6 unsolved in 1046 ms.
Refiners :[Generalized P Invariants (flows): 8/8 constraints, State Equation: 177/177 constraints, ReadFeed: 4/4 constraints, PredecessorRefiner: 6/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 1633ms problems are : Problem set: 0 solved, 6 unsolved
FORMULA CO4-PT-20-ReachabilityFireability-2024-03 FALSE TECHNIQUES PARIKH_WALK
FORMULA CO4-PT-20-ReachabilityFireability-2024-05 TRUE TECHNIQUES PARIKH_WALK
FORMULA CO4-PT-20-ReachabilityFireability-2024-14 FALSE TECHNIQUES PARIKH_WALK
FORMULA CO4-PT-20-ReachabilityFireability-2024-08 TRUE TECHNIQUES PARIKH_WALK
FORMULA CO4-PT-20-ReachabilityFireability-2024-09 TRUE TECHNIQUES PARIKH_WALK
Parikh walk visited 5 properties in 322 ms.
Support contains 15 out of 177 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 177/177 places, 343/343 transitions.
Graph (complete) has 558 edges and 177 vertex of which 175 are kept as prefixes of interest. Removing 2 places using SCC suffix rule.0 ms
Discarding 2 places :
Also discarding 2 output transitions
Drop transitions (Output transitions of discarded places.) removed 2 transitions
Drop transitions (Empty/Sink Transition effects.) removed 1 transitions
Reduce isomorphic transitions removed 1 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 22 rules applied. Total rules applied 23 place count 175 transition count 319
Reduce places removed 21 places and 0 transitions.
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 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 24 rules applied. Total rules applied 47 place count 154 transition count 316
Reduce places removed 1 places and 0 transitions.
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Performed 2 Post agglomeration using F-continuation condition.Transition count delta: 2
Iterating post reduction 2 with 4 rules applied. Total rules applied 51 place count 153 transition count 313
Reduce places removed 2 places and 0 transitions.
Iterating post reduction 3 with 2 rules applied. Total rules applied 53 place count 151 transition count 313
Performed 14 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 4 with 14 Pre rules applied. Total rules applied 53 place count 151 transition count 299
Deduced a syphon composed of 14 places in 0 ms
Reduce places removed 14 places and 0 transitions.
Iterating global reduction 4 with 28 rules applied. Total rules applied 81 place count 137 transition count 299
Discarding 15 places :
Symmetric choice reduction at 4 with 15 rule applications. Total rules 96 place count 122 transition count 273
Iterating global reduction 4 with 15 rules applied. Total rules applied 111 place count 122 transition count 273
Ensure Unique test removed 5 transitions
Reduce isomorphic transitions removed 5 transitions.
Iterating post reduction 4 with 5 rules applied. Total rules applied 116 place count 122 transition count 268
Discarding 5 places :
Symmetric choice reduction at 5 with 5 rule applications. Total rules 121 place count 117 transition count 253
Iterating global reduction 5 with 5 rules applied. Total rules applied 126 place count 117 transition count 253
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 5 with 1 rules applied. Total rules applied 127 place count 117 transition count 252
Performed 15 Post agglomeration using F-continuation condition with reduction of 8 identical transitions.
Deduced a syphon composed of 15 places in 0 ms
Reduce places removed 15 places and 0 transitions.
Iterating global reduction 6 with 30 rules applied. Total rules applied 157 place count 102 transition count 229
Drop transitions (Empty/Sink Transition effects.) removed 4 transitions
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 6 transitions.
Iterating post reduction 6 with 6 rules applied. Total rules applied 163 place count 102 transition count 223
Discarding 5 places :
Symmetric choice reduction at 7 with 5 rule applications. Total rules 168 place count 97 transition count 213
Iterating global reduction 7 with 5 rules applied. Total rules applied 173 place count 97 transition count 213
Ensure Unique test removed 3 transitions
Reduce isomorphic transitions removed 3 transitions.
Iterating post reduction 7 with 3 rules applied. Total rules applied 176 place count 97 transition count 210
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 8 with 1 Pre rules applied. Total rules applied 176 place count 97 transition count 209
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 8 with 2 rules applied. Total rules applied 178 place count 96 transition count 209
Performed 11 Post agglomeration using F-continuation condition.Transition count delta: -14
Deduced a syphon composed of 11 places in 0 ms
Reduce places removed 11 places and 0 transitions.
Iterating global reduction 8 with 22 rules applied. Total rules applied 200 place count 85 transition count 223
Drop transitions (Empty/Sink Transition effects.) removed 3 transitions
Ensure Unique test removed 6 transitions
Reduce isomorphic transitions removed 9 transitions.
Iterating post reduction 8 with 9 rules applied. Total rules applied 209 place count 85 transition count 214
Discarding 7 places :
Symmetric choice reduction at 9 with 7 rule applications. Total rules 216 place count 78 transition count 189
Iterating global reduction 9 with 7 rules applied. Total rules applied 223 place count 78 transition count 189
Ensure Unique test removed 4 transitions
Reduce isomorphic transitions removed 4 transitions.
Iterating post reduction 9 with 4 rules applied. Total rules applied 227 place count 78 transition count 185
Discarding 3 places :
Symmetric choice reduction at 10 with 3 rule applications. Total rules 230 place count 75 transition count 168
Iterating global reduction 10 with 3 rules applied. Total rules applied 233 place count 75 transition count 168
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 10 with 1 rules applied. Total rules applied 234 place count 75 transition count 167
Drop transitions (Redundant composition of simpler transitions.) removed 7 transitions
Redundant transition composition rules discarded 7 transitions
Iterating global reduction 11 with 7 rules applied. Total rules applied 241 place count 75 transition count 160
Free-agglomeration rule applied 8 times.
Iterating global reduction 11 with 8 rules applied. Total rules applied 249 place count 75 transition count 152
Reduce places removed 8 places and 0 transitions.
Ensure Unique test removed 8 transitions
Reduce isomorphic transitions removed 8 transitions.
Iterating post reduction 11 with 16 rules applied. Total rules applied 265 place count 67 transition count 144
Partial Free-agglomeration rule applied 1 times.
Drop transitions (Partial Free agglomeration) removed 1 transitions
Iterating global reduction 12 with 1 rules applied. Total rules applied 266 place count 67 transition count 144
Drop transitions (Redundant composition of simpler transitions.) removed 1 transitions
Redundant transition composition rules discarded 1 transitions
Iterating global reduction 12 with 1 rules applied. Total rules applied 267 place count 67 transition count 143
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 12 with 1 rules applied. Total rules applied 268 place count 66 transition count 142
Applied a total of 268 rules in 47 ms. Remains 66 /177 variables (removed 111) and now considering 142/343 (removed 201) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 47 ms. Remains : 66/177 places, 142/343 transitions.
RANDOM walk for 40000 steps (8 resets) in 85 ms. (465 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (8 resets) in 47 ms. (833 steps per ms) remains 1/1 properties
Finished probabilistic random walk after 1035842 steps, run visited all 1 properties in 1177 ms. (steps per millisecond=880 )
Probabilistic random walk after 1035842 steps, saw 173105 distinct states, run finished after 1180 ms. (steps per millisecond=877 ) properties seen :1
FORMULA CO4-PT-20-ReachabilityFireability-2024-10 FALSE TECHNIQUES TOPOLOGICAL PROBABILISTIC_WALK
ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
All properties solved without resorting to model-checking.
Total runtime 14024 ms.

BK_STOP 1779527463118

--------------------
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
+ [[ ReachabilityFireability = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution ReachabilityFireability -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600
+ ulimit -s 65536
+ [[ -z '' ]]
+ export LTSMIN_MEM_SIZE=8589934592
+ LTSMIN_MEM_SIZE=8589934592
++ 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 ReachabilityFireability -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600

Sequence of Actions to be Executed by the VM

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

set -x
# this is for BenchKit: configuration of major elements for the test
export BK_INPUT="CO4-PT-20"
export BK_EXAMINATION="ReachabilityFireability"
export BK_TOOL="itstools"
export BK_RESULT_DIR="/tmp/BK_RESULTS/OUTPUTS"
export BK_TIME_CONFINEMENT="3600"
export BK_MEMORY_CONFINEMENT="16384"
export BK_BIN_PATH="/home/mcc/BenchKit/bin/"

# this is specific to your benchmark or test

export BIN_DIR="$HOME/BenchKit/bin"

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

# this is for BenchKit: explicit launching of the test
echo "====================================================================="
echo " Generated by BenchKit 2-5973"
echo " Executing tool itstools"
echo " Input is CO4-PT-20, examination is ReachabilityFireability"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r066-tall-177946967700439"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/CO4-PT-20.tgz
mv CO4-PT-20 execution
cd execution
if [ "ReachabilityFireability" = "ReachabilityDeadlock" ] || [ "ReachabilityFireability" = "UpperBounds" ] || [ "ReachabilityFireability" = "QuasiLiveness" ] || [ "ReachabilityFireability" = "StableMarking" ] || [ "ReachabilityFireability" = "Liveness" ] || [ "ReachabilityFireability" = "OneSafe" ] || [ "ReachabilityFireability" = "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 [ "ReachabilityFireability" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "ReachabilityFireability" != "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 "ReachabilityFireability.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 '' ReachabilityFireability.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "ReachabilityFireability" = "ReachabilityDeadlock" ] || [ "ReachabilityFireability" = "QuasiLiveness" ] || [ "ReachabilityFireability" = "StableMarking" ] || [ "ReachabilityFireability" = "Liveness" ] || [ "ReachabilityFireability" = "OneSafe" ] ; then
echo "FORMULA_NAME ReachabilityFireability"
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 ;