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.r082-smll-177946993500085.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 DBSingleClientW-PT-d0m04, examination is UpperBounds
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r082-smll-177946993500085
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 532K
-rw-r--r-- 1 mcc users 8.2K Mar 6 18:22 CTLCardinality.txt
-rw-r--r-- 1 mcc users 93K Mar 6 18:22 CTLCardinality.xml
-rw-r--r-- 1 mcc users 6.0K Mar 6 18:22 CTLFireability.txt
-rw-r--r-- 1 mcc users 56K Mar 6 18:22 CTLFireability.xml
-rw-r--r-- 1 mcc users 3.9K Mar 15 08:44 LTLCardinality.txt
-rw-r--r-- 1 mcc users 27K Mar 15 08:44 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.3K Mar 15 08:45 LTLFireability.txt
-rw-r--r-- 1 mcc users 17K Mar 15 08:45 LTLFireability.xml
-rw-r--r-- 1 mcc users 5.9K Mar 6 18:22 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 46K Mar 6 18:22 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 11K Mar 6 18:22 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 95K Mar 6 18:22 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K Mar 15 08:45 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.8K Mar 15 08:45 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 equiv_col
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 instance
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 iscolored
-rw-r--r-- 1 mcc users 119K 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 positive values
NUM_VECTOR

echo here is the order used to build the result vector(from xml file)
FORMULA_NAME DBSingleClientW-PT-d0m04-UpperBounds-00
FORMULA_NAME DBSingleClientW-PT-d0m04-UpperBounds-01
FORMULA_NAME DBSingleClientW-PT-d0m04-UpperBounds-02
FORMULA_NAME DBSingleClientW-PT-d0m04-UpperBounds-03
FORMULA_NAME DBSingleClientW-PT-d0m04-UpperBounds-04
FORMULA_NAME DBSingleClientW-PT-d0m04-UpperBounds-05
FORMULA_NAME DBSingleClientW-PT-d0m04-UpperBounds-06
FORMULA_NAME DBSingleClientW-PT-d0m04-UpperBounds-07
FORMULA_NAME DBSingleClientW-PT-d0m04-UpperBounds-08
FORMULA_NAME DBSingleClientW-PT-d0m04-UpperBounds-09
FORMULA_NAME DBSingleClientW-PT-d0m04-UpperBounds-10
FORMULA_NAME DBSingleClientW-PT-d0m04-UpperBounds-11
FORMULA_NAME DBSingleClientW-PT-d0m04-UpperBounds-12
FORMULA_NAME DBSingleClientW-PT-d0m04-UpperBounds-13
FORMULA_NAME DBSingleClientW-PT-d0m04-UpperBounds-14
FORMULA_NAME DBSingleClientW-PT-d0m04-UpperBounds-15

=== Now, execution of the tool begins

BK_START 1779551413963

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=UpperBounds
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=DBSingleClientW-PT-d0m04
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
UpperBounds PT
Running Version 202604301425
[2026-05-23 15:50:16] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, UpperBounds, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2026-05-23 15:50:16] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-23 15:50:16] [INFO ] Load time of PNML (sax parser for PT used): 194 ms
[2026-05-23 15:50:16] [INFO ] Transformed 553 places.
[2026-05-23 15:50:16] [INFO ] Transformed 150 transitions.
[2026-05-23 15:50:16] [INFO ] Parsed PT model containing 553 places and 150 transitions and 600 arcs in 418 ms.
Parsed 16 properties from file /home/mcc/execution/UpperBounds.xml in 15 ms.
Deduced a syphon composed of 444 places in 3 ms
Reduce places removed 444 places and 0 transitions.
FORMULA DBSingleClientW-PT-d0m04-UpperBounds-00 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA DBSingleClientW-PT-d0m04-UpperBounds-03 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA DBSingleClientW-PT-d0m04-UpperBounds-04 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA DBSingleClientW-PT-d0m04-UpperBounds-05 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA DBSingleClientW-PT-d0m04-UpperBounds-06 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA DBSingleClientW-PT-d0m04-UpperBounds-07 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA DBSingleClientW-PT-d0m04-UpperBounds-09 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA DBSingleClientW-PT-d0m04-UpperBounds-11 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA DBSingleClientW-PT-d0m04-UpperBounds-12 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA DBSingleClientW-PT-d0m04-UpperBounds-13 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA DBSingleClientW-PT-d0m04-UpperBounds-14 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA DBSingleClientW-PT-d0m04-UpperBounds-15 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
Current structural bounds on expressions (Initially) : Max Seen:[0, 0, 0, 0] Max Struct:[+inf, +inf, +inf, +inf]
Current structural bounds on expressions (Before main loop) : Max Seen:[0, 0, 0, 0] Max Struct:[+inf, +inf, +inf, +inf]
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-8186802651759688203.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-12935999952117825285.kers'
[2026-05-23 15:50:17] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-8186802651759688203.kers, --Pflows, --basisKERS=/tmp/petrispot-output-12935999952117825285.kers]
Culled 0 columns in 0 ms.
// Phase 1: matrix 150 rows 109 cols 450 entries
Finished phase 1 with 59 SingleSign rule and 44 generalized
[2026-05-23 15:50:17] [INFO ] Computed 6 invariants in 1 ms
Computed 6 P flows in 3 ms.
Exported basis to /tmp/petrispot-output-12935999952117825285.kers
Total runtime 4 ms.
Current structural bounds on expressions (after invariants) : Max Seen:[0, 0, 0, 0] Max Struct:[1, 22, 1, 1]
RANDOM walk for 10000 steps (2247 resets) in 106 ms. (93 steps per ms)
FORMULA DBSingleClientW-PT-d0m04-UpperBounds-01 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA DBSingleClientW-PT-d0m04-UpperBounds-08 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 20001 steps (2074 resets) in 81 ms. (243 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0, 0] Max Struct:[22, 1]
[2026-05-23 15:50:17] [INFO ] Invariant cache hit.
[2026-05-23 15:50:17] [INFO ] [Real]Absence check using 3 positive place invariants in 12 ms returned sat
[2026-05-23 15:50:17] [INFO ] [Real]Absence check using 3 positive and 3 generalized place invariants in 7 ms returned sat
[2026-05-23 15:50:18] [INFO ] [Real]Absence check using state equation in 185 ms returned sat
[2026-05-23 15:50:18] [INFO ] State equation strengthened by 74 read => feed constraints.
[2026-05-23 15:50:18] [INFO ] [Real]Added 74 Read/Feed constraints in 39 ms returned sat
[2026-05-23 15:50:18] [INFO ] Solution in real domain found non-integer solution.
[2026-05-23 15:50:18] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-23 15:50:18] [INFO ] [Nat]Absence check using 3 positive and 3 generalized place invariants in 3 ms returned sat
[2026-05-23 15:50:18] [INFO ] [Nat]Absence check using state equation in 158 ms returned sat
[2026-05-23 15:50:18] [INFO ] [Nat]Added 74 Read/Feed constraints in 46 ms returned sat
[2026-05-23 15:50:18] [INFO ] Computed and/alt/rep : 39/69/39 causal constraints (skipped 110 transitions) in 56 ms.
[2026-05-23 15:50:18] [INFO ] Added : 5 causal constraints over 1 iterations in 139 ms. Result :sat
Minimization took 139 ms.
[2026-05-23 15:50:18] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-23 15:50:18] [INFO ] [Real]Absence check using 3 positive and 3 generalized place invariants in 4 ms returned sat
[2026-05-23 15:50:19] [INFO ] [Real]Absence check using state equation in 125 ms returned sat
[2026-05-23 15:50:19] [INFO ] [Real]Added 74 Read/Feed constraints in 33 ms returned sat
[2026-05-23 15:50:19] [INFO ] Solution in real domain found non-integer solution.
[2026-05-23 15:50:19] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-23 15:50:19] [INFO ] [Nat]Absence check using 3 positive and 3 generalized place invariants in 4 ms returned sat
[2026-05-23 15:50:19] [INFO ] [Nat]Absence check using state equation in 93 ms returned sat
[2026-05-23 15:50:19] [INFO ] [Nat]Added 74 Read/Feed constraints in 23 ms returned sat
[2026-05-23 15:50:19] [INFO ] Trap strengthening (SAT) tested/added 5/4 trap constraints in 708 ms
[2026-05-23 15:50:20] [INFO ] Computed and/alt/rep : 39/69/39 causal constraints (skipped 110 transitions) in 43 ms.
[2026-05-23 15:50:20] [INFO ] Added : 10 causal constraints over 2 iterations in 182 ms. Result :sat
Minimization took 97 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0, 0] Max Struct:[22, 1]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0, 0] Max Struct:[22, 1]
Support contains 2 out of 109 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 109/109 places, 150/150 transitions.
Graph (complete) has 332 edges and 109 vertex of which 101 are kept as prefixes of interest. Removing 8 places using SCC suffix rule.2 ms
Discarding 8 places :
Also discarding 0 output transitions
Drop transitions (Empty/Sink Transition effects.) removed 2 transitions
Ensure Unique test removed 11 transitions
Reduce isomorphic transitions removed 13 transitions.
Iterating post reduction 0 with 13 rules applied. Total rules applied 14 place count 101 transition count 137
Discarding 22 places :
Symmetric choice reduction at 1 with 22 rule applications. Total rules 36 place count 79 transition count 97
Iterating global reduction 1 with 22 rules applied. Total rules applied 58 place count 79 transition count 97
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 1 with 1 rules applied. Total rules applied 59 place count 79 transition count 96
Discarding 11 places :
Symmetric choice reduction at 2 with 11 rule applications. Total rules 70 place count 68 transition count 85
Iterating global reduction 2 with 11 rules applied. Total rules applied 81 place count 68 transition count 85
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 2 with 1 rules applied. Total rules applied 82 place count 68 transition count 84
Discarding 2 places :
Symmetric choice reduction at 3 with 2 rule applications. Total rules 84 place count 66 transition count 81
Iterating global reduction 3 with 2 rules applied. Total rules applied 86 place count 66 transition count 81
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 3 with 1 rules applied. Total rules applied 87 place count 66 transition count 80
Discarding 1 places :
Symmetric choice reduction at 4 with 1 rule applications. Total rules 88 place count 65 transition count 78
Iterating global reduction 4 with 1 rules applied. Total rules applied 89 place count 65 transition count 78
Discarding 1 places :
Symmetric choice reduction at 4 with 1 rule applications. Total rules 90 place count 64 transition count 77
Iterating global reduction 4 with 1 rules applied. Total rules applied 91 place count 64 transition count 77
Discarding 1 places :
Symmetric choice reduction at 4 with 1 rule applications. Total rules 92 place count 63 transition count 76
Iterating global reduction 4 with 1 rules applied. Total rules applied 93 place count 63 transition count 76
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 4 with 2 rules applied. Total rules applied 95 place count 63 transition count 74
Applied a total of 95 rules in 122 ms. Remains 63 /109 variables (removed 46) and now considering 74/150 (removed 76) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 138 ms. Remains : 63/109 places, 74/150 transitions.
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-9829600301831242252.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-8092593715629995469.kers'
[2026-05-23 15:50:20] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-9829600301831242252.kers, --Pflows, --basisKERS=/tmp/petrispot-output-8092593715629995469.kers]
Culled 0 columns in 0 ms.
// Phase 1: matrix 74 rows 63 cols 248 entries
Finished phase 1 with 58 SingleSign rule and 3 generalized
[2026-05-23 15:50:20] [INFO ] Computed 2 invariants in 0 ms
Computed 2 P flows in 5 ms.
Exported basis to /tmp/petrispot-output-8092593715629995469.kers
Total runtime 6 ms.
Current structural bounds on expressions (after invariants) : Max Seen:[0, 0] Max Struct:[22, 1]
RANDOM walk for 1000000 steps (229514 resets) in 1579 ms. (632 steps per ms)
BEST_FIRST walk for 2000000 steps (203971 resets) in 1135 ms. (1760 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[1, 0] Max Struct:[22, 1]
[2026-05-23 15:50:23] [INFO ] Invariant cache hit.
[2026-05-23 15:50:23] [INFO ] [Real]Absence check using 0 positive and 2 generalized place invariants in 1 ms returned sat
[2026-05-23 15:50:23] [INFO ] [Real]Absence check using state equation in 48 ms returned sat
[2026-05-23 15:50:23] [INFO ] State equation strengthened by 21 read => feed constraints.
[2026-05-23 15:50:23] [INFO ] [Real]Added 21 Read/Feed constraints in 7 ms returned sat
[2026-05-23 15:50:23] [INFO ] Solution in real domain found non-integer solution.
[2026-05-23 15:50:23] [INFO ] [Nat]Absence check using 0 positive and 2 generalized place invariants in 2 ms returned sat
[2026-05-23 15:50:23] [INFO ] [Nat]Absence check using state equation in 41 ms returned sat
[2026-05-23 15:50:23] [INFO ] [Nat]Added 21 Read/Feed constraints in 6 ms returned sat
[2026-05-23 15:50:23] [INFO ] Computed and/alt/rep : 21/45/21 causal constraints (skipped 52 transitions) in 8 ms.
[2026-05-23 15:50:24] [INFO ] Trap strengthening (SAT) tested/added 6/5 trap constraints in 490 ms
[2026-05-23 15:50:24] [INFO ] Added : 6 causal constraints over 2 iterations in 533 ms. Result :sat
Minimization took 45 ms.
[2026-05-23 15:50:24] [INFO ] [Real]Absence check using 0 positive and 2 generalized place invariants in 2 ms returned sat
[2026-05-23 15:50:24] [INFO ] [Real]Absence check using state equation in 48 ms returned sat
[2026-05-23 15:50:24] [INFO ] [Real]Added 21 Read/Feed constraints in 9 ms returned sat
[2026-05-23 15:50:24] [INFO ] Solution in real domain found non-integer solution.
[2026-05-23 15:50:24] [INFO ] [Nat]Absence check using 0 positive and 2 generalized place invariants in 2 ms returned sat
[2026-05-23 15:50:24] [INFO ] [Nat]Absence check using state equation in 52 ms returned sat
[2026-05-23 15:50:24] [INFO ] [Nat]Added 21 Read/Feed constraints in 9 ms returned sat
[2026-05-23 15:50:24] [INFO ] Computed and/alt/rep : 21/45/21 causal constraints (skipped 52 transitions) in 14 ms.
[2026-05-23 15:50:24] [INFO ] Added : 9 causal constraints over 3 iterations in 63 ms. Result :sat
Minimization took 50 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[1, 0] Max Struct:[22, 1]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[1, 0] Max Struct:[22, 1]
Support contains 2 out of 63 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 63/63 places, 74/74 transitions.
Applied a total of 0 rules in 11 ms. Remains 63 /63 variables (removed 0) and now considering 74/74 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 11 ms. Remains : 63/63 places, 74/74 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 63/63 places, 74/74 transitions.
Applied a total of 0 rules in 10 ms. Remains 63 /63 variables (removed 0) and now considering 74/74 (removed 0) transitions.
[2026-05-23 15:50:24] [INFO ] Invariant cache hit.
[2026-05-23 15:50:24] [INFO ] Implicit Places using invariants in 107 ms returned []
[2026-05-23 15:50:24] [INFO ] Invariant cache hit.
[2026-05-23 15:50:24] [INFO ] State equation strengthened by 21 read => feed constraints.
[2026-05-23 15:50:24] [INFO ] Implicit Places using invariants and state equation in 299 ms returned []
Implicit Place search using SMT with State Equation took 409 ms to find 0 implicit places.
[2026-05-23 15:50:24] [INFO ] Redundant transitions in 2 ms returned []
Running 73 sub problems to find dead transitions.
[2026-05-23 15:50:25] [INFO ] Invariant cache hit.
[2026-05-23 15:50:25] [INFO ] State equation strengthened by 21 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/62 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 73 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/62 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 73 unsolved
At refinement iteration 2 (OVERLAPS) 1/63 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 73 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/63 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 73 unsolved
At refinement iteration 4 (OVERLAPS) 74/137 variables, 63/65 constraints. Problems are: Problem set: 0 solved, 73 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/137 variables, 21/86 constraints. Problems are: Problem set: 0 solved, 73 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/137 variables, 0/86 constraints. Problems are: Problem set: 0 solved, 73 unsolved
At refinement iteration 7 (OVERLAPS) 0/137 variables, 0/86 constraints. Problems are: Problem set: 0 solved, 73 unsolved
No progress, stopping.
After SMT solving in domain Real declared 137/137 variables, and 86 constraints, problems are : Problem set: 0 solved, 73 unsolved in 3107 ms.
Refiners :[Generalized P Invariants (flows): 2/2 constraints, State Equation: 63/63 constraints, ReadFeed: 21/21 constraints, PredecessorRefiner: 73/73 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 73 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/62 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 73 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/62 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 73 unsolved
At refinement iteration 2 (OVERLAPS) 1/63 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 73 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/63 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 73 unsolved
At refinement iteration 4 (OVERLAPS) 74/137 variables, 63/65 constraints. Problems are: Problem set: 0 solved, 73 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/137 variables, 21/86 constraints. Problems are: Problem set: 0 solved, 73 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/137 variables, 73/159 constraints. Problems are: Problem set: 0 solved, 73 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/137 variables, 0/159 constraints. Problems are: Problem set: 0 solved, 73 unsolved
At refinement iteration 8 (OVERLAPS) 0/137 variables, 0/159 constraints. Problems are: Problem set: 0 solved, 73 unsolved
No progress, stopping.
After SMT solving in domain Int declared 137/137 variables, and 159 constraints, problems are : Problem set: 0 solved, 73 unsolved in 8890 ms.
Refiners :[Generalized P Invariants (flows): 2/2 constraints, State Equation: 63/63 constraints, ReadFeed: 21/21 constraints, PredecessorRefiner: 73/73 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 12196ms problems are : Problem set: 0 solved, 73 unsolved
Search for dead transitions found 0 dead transitions in 12211ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 12687 ms. Remains : 63/63 places, 74/74 transitions.
[2026-05-23 15:50:37] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[1, 0] Max Struct:[22, 1]
RANDOM walk for 1000000 steps (229395 resets) in 1347 ms. (741 steps per ms)
BEST_FIRST walk for 2000002 steps (204919 resets) in 960 ms. (2081 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[1, 0] Max Struct:[22, 1]
[2026-05-23 15:50:39] [INFO ] Invariant cache hit.
[2026-05-23 15:50:39] [INFO ] [Real]Absence check using 0 positive and 2 generalized place invariants in 3 ms returned sat
[2026-05-23 15:50:39] [INFO ] [Real]Absence check using state equation in 48 ms returned sat
[2026-05-23 15:50:39] [INFO ] State equation strengthened by 21 read => feed constraints.
[2026-05-23 15:50:39] [INFO ] [Real]Added 21 Read/Feed constraints in 8 ms returned sat
[2026-05-23 15:50:39] [INFO ] Solution in real domain found non-integer solution.
[2026-05-23 15:50:39] [INFO ] [Nat]Absence check using 0 positive and 2 generalized place invariants in 1 ms returned sat
[2026-05-23 15:50:39] [INFO ] [Nat]Absence check using state equation in 34 ms returned sat
[2026-05-23 15:50:39] [INFO ] [Nat]Added 21 Read/Feed constraints in 5 ms returned sat
[2026-05-23 15:50:39] [INFO ] Computed and/alt/rep : 21/45/21 causal constraints (skipped 52 transitions) in 10 ms.
[2026-05-23 15:50:40] [INFO ] Trap strengthening (SAT) tested/added 6/5 trap constraints in 434 ms
[2026-05-23 15:50:40] [INFO ] Added : 6 causal constraints over 2 iterations in 473 ms. Result :sat
Minimization took 71 ms.
[2026-05-23 15:50:40] [INFO ] [Real]Absence check using 0 positive and 2 generalized place invariants in 2 ms returned sat
[2026-05-23 15:50:40] [INFO ] [Real]Absence check using state equation in 31 ms returned sat
[2026-05-23 15:50:40] [INFO ] [Real]Added 21 Read/Feed constraints in 8 ms returned sat
[2026-05-23 15:50:40] [INFO ] Solution in real domain found non-integer solution.
[2026-05-23 15:50:40] [INFO ] [Nat]Absence check using 0 positive and 2 generalized place invariants in 3 ms returned sat
[2026-05-23 15:50:40] [INFO ] [Nat]Absence check using state equation in 45 ms returned sat
[2026-05-23 15:50:40] [INFO ] [Nat]Added 21 Read/Feed constraints in 9 ms returned sat
[2026-05-23 15:50:40] [INFO ] Computed and/alt/rep : 21/45/21 causal constraints (skipped 52 transitions) in 11 ms.
[2026-05-23 15:50:40] [INFO ] Added : 9 causal constraints over 3 iterations in 51 ms. Result :sat
Minimization took 49 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[1, 0] Max Struct:[22, 1]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[1, 0] Max Struct:[22, 1]
Support contains 2 out of 63 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 63/63 places, 74/74 transitions.
Applied a total of 0 rules in 6 ms. Remains 63 /63 variables (removed 0) and now considering 74/74 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 6 ms. Remains : 63/63 places, 74/74 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 63/63 places, 74/74 transitions.
Applied a total of 0 rules in 6 ms. Remains 63 /63 variables (removed 0) and now considering 74/74 (removed 0) transitions.
[2026-05-23 15:50:40] [INFO ] Invariant cache hit.
[2026-05-23 15:50:40] [INFO ] Implicit Places using invariants in 81 ms returned []
[2026-05-23 15:50:40] [INFO ] Invariant cache hit.
[2026-05-23 15:50:40] [INFO ] State equation strengthened by 21 read => feed constraints.
[2026-05-23 15:50:40] [INFO ] Implicit Places using invariants and state equation in 309 ms returned []
Implicit Place search using SMT with State Equation took 394 ms to find 0 implicit places.
[2026-05-23 15:50:40] [INFO ] Redundant transitions in 1 ms returned []
Skipped dead transition search.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 410 ms. Remains : 63/63 places, 74/74 transitions.
RANDOM walk for 40000 steps (9146 resets) in 1026 ms. (38 steps per ms) remains 4/4 properties
BEST_FIRST walk for 40002 steps (4094 resets) in 414 ms. (96 steps per ms) remains 4/4 properties
BEST_FIRST walk for 40001 steps (4095 resets) in 258 ms. (154 steps per ms) remains 4/4 properties
BEST_FIRST walk for 40002 steps (4099 resets) in 222 ms. (179 steps per ms) remains 4/4 properties
[2026-05-23 15:50:41] [INFO ] Flatten gal took : 112 ms
[2026-05-23 15:50:41] [INFO ] Flatten gal took : 42 ms
[2026-05-23 15:50:41] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality15568104730504756718.gal : 19 ms
BEST_FIRST walk for 40002 steps (4128 resets) in 279 ms. (142 steps per ms) remains 4/4 properties
[2026-05-23 15:50:41] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality14947528063429918542.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/ReachabilityCardinality15568104730504756718.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality14947528063429918542.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
Loading property file /tmp/ReachabilityCardinality14947528063429918542.prop.
SDD proceeding with computation,4 properties remain. new max is 4
SDD size :1 after 7
SDD proceeding with computation,4 properties remain. new max is 8
SDD size :7 after 22
SDD proceeding with computation,4 properties remain. new max is 16
SDD size :22 after 48
SDD proceeding with computation,4 properties remain. new max is 32
SDD size :48 after 92
SDD proceeding with computation,4 properties remain. new max is 64
SDD size :92 after 184
SDD proceeding with computation,4 properties remain. new max is 128
SDD size :184 after 696
SDD proceeding with computation,4 properties remain. new max is 256
SDD size :696 after 1208
SDD proceeding with computation,4 properties remain. new max is 512
SDD size :1208 after 2406
Probably explored full state space saw : 4910 states, properties seen :2
Probabilistic random walk after 11793 steps, saw 4910 distinct states, run finished after 166 ms. (steps per millisecond=71 ) properties seen :2
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
petri\_inst\_inst,4924,0.140156,7376,2,1708,13,13270,10,0,333,8531,0
Total reachable state count : 4924

Verifying 4 reachability properties.
Reachability property MAX0 does not hold.
No reachable states exhibit your property : MAX0

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
MAX0,0,0.141339,7488,1,0,13,13270,10,0,334,8531,0
Invariant property MIN0 is true.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
MIN0,0,0.141798,7640,1,0,13,13270,10,0,334,8531,0
Reachability property MAX1 is true.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
MAX1,18,0.142026,7640,2,86,13,13270,10,0,335,8531,0
Invariant property MIN1 does not hold.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
MIN1,18,0.142227,7640,2,86,13,13270,10,0,335,8531,0
Explored full state space saw : 4924 states, properties seen :0
Exhaustive walk after 11823 steps, saw 4924 distinct states, run finished after 75 ms. (steps per millisecond=157 ) properties seen :0
FORMULA DBSingleClientW-PT-d0m04-UpperBounds-02 1 TECHNIQUES REACHABILITY_MIN
FORMULA DBSingleClientW-PT-d0m04-UpperBounds-10 1 TECHNIQUES REACHABILITY_MAX
Current structural bounds on expressions (after reachability check) : Max Seen:[] Max Struct:[]
[2026-05-23 15:50:42] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[] Max Struct:[]
RANDOM walk for 1000000 steps (229265 resets) in 1010 ms. (989 steps per ms)
BEST_FIRST walk for 0 steps (0 resets) in 0 ms. (0 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[] Max Struct:[]
All properties solved without resorting to model-checking.
Total runtime 26551 ms.

BK_STOP 1779551443160

--------------------
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
+ [[ UpperBounds = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution UpperBounds -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 UpperBounds -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="DBSingleClientW-PT-d0m04"
export BK_EXAMINATION="UpperBounds"
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 DBSingleClientW-PT-d0m04, examination is UpperBounds"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r082-smll-177946993500085"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/DBSingleClientW-PT-d0m04.tgz
mv DBSingleClientW-PT-d0m04 execution
cd execution
if [ "UpperBounds" = "ReachabilityDeadlock" ] || [ "UpperBounds" = "UpperBounds" ] || [ "UpperBounds" = "QuasiLiveness" ] || [ "UpperBounds" = "StableMarking" ] || [ "UpperBounds" = "Liveness" ] || [ "UpperBounds" = "OneSafe" ] || [ "UpperBounds" = "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 [ "UpperBounds" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "UpperBounds" != "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 "UpperBounds.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 '' UpperBounds.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "UpperBounds" = "ReachabilityDeadlock" ] || [ "UpperBounds" = "QuasiLiveness" ] || [ "UpperBounds" = "StableMarking" ] || [ "UpperBounds" = "Liveness" ] || [ "UpperBounds" = "OneSafe" ] ; then
echo "FORMULA_NAME UpperBounds"
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 ;