Execution Chart

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Trace from the execution

Formatting '/data/fkordon/mcc2025-input.r212-tall-174901994200381.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2025-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 2-5832
Executing tool itstools
Input is SieveSingleMsgMbox-PT-d0m36, examination is UpperBounds
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r212-tall-174901994200381
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 472K
-rw-r--r-- 1 mcc users 6.4K May 29 14:47 CTLCardinality.txt
-rw-r--r-- 1 mcc users 65K May 29 14:47 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.3K May 29 14:47 CTLFireability.txt
-rw-r--r-- 1 mcc users 46K May 29 14:47 CTLFireability.xml
-rw-r--r-- 1 mcc users 3.6K May 29 14:47 LTLCardinality.txt
-rw-r--r-- 1 mcc users 26K May 29 14:47 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.3K May 29 14:47 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K May 29 14:47 LTLFireability.xml
-rw-r--r-- 1 mcc users 9.1K May 29 14:47 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 91K May 29 14:47 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 9.6K May 29 14:47 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 87K May 29 14:47 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.8K May 29 14:47 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.8K May 29 14:47 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 May 29 14:33 equiv_col
-rw-r--r-- 1 mcc users 6 May 29 14:33 instance
-rw-r--r-- 1 mcc users 6 May 29 14:33 iscolored
-rw-r--r-- 1 mcc users 57K May 29 14:33 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 SieveSingleMsgMbox-PT-d0m36-UpperBounds-00
FORMULA_NAME SieveSingleMsgMbox-PT-d0m36-UpperBounds-01
FORMULA_NAME SieveSingleMsgMbox-PT-d0m36-UpperBounds-02
FORMULA_NAME SieveSingleMsgMbox-PT-d0m36-UpperBounds-03
FORMULA_NAME SieveSingleMsgMbox-PT-d0m36-UpperBounds-04
FORMULA_NAME SieveSingleMsgMbox-PT-d0m36-UpperBounds-05
FORMULA_NAME SieveSingleMsgMbox-PT-d0m36-UpperBounds-06
FORMULA_NAME SieveSingleMsgMbox-PT-d0m36-UpperBounds-07
FORMULA_NAME SieveSingleMsgMbox-PT-d0m36-UpperBounds-08
FORMULA_NAME SieveSingleMsgMbox-PT-d0m36-UpperBounds-09
FORMULA_NAME SieveSingleMsgMbox-PT-d0m36-UpperBounds-10
FORMULA_NAME SieveSingleMsgMbox-PT-d0m36-UpperBounds-11
FORMULA_NAME SieveSingleMsgMbox-PT-d0m36-UpperBounds-12
FORMULA_NAME SieveSingleMsgMbox-PT-d0m36-UpperBounds-13
FORMULA_NAME SieveSingleMsgMbox-PT-d0m36-UpperBounds-14
FORMULA_NAME SieveSingleMsgMbox-PT-d0m36-UpperBounds-15

=== Now, execution of the tool begins

BK_START 1749149656214

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=UpperBounds
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=SieveSingleMsgMbox-PT-d0m36
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
UpperBounds PT
Running Version 202505121319
[2025-06-05 18:54:17] [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]
[2025-06-05 18:54:17] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2025-06-05 18:54:17] [INFO ] Load time of PNML (sax parser for PT used): 62 ms
[2025-06-05 18:54:17] [INFO ] Transformed 262 places.
[2025-06-05 18:54:17] [INFO ] Transformed 73 transitions.
[2025-06-05 18:54:17] [INFO ] Parsed PT model containing 262 places and 73 transitions and 292 arcs in 146 ms.
Parsed 16 properties from file /home/mcc/execution/UpperBounds.xml in 6 ms.
Deduced a syphon composed of 190 places in 1 ms
Reduce places removed 190 places and 0 transitions.
FORMULA SieveSingleMsgMbox-PT-d0m36-UpperBounds-00 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA SieveSingleMsgMbox-PT-d0m36-UpperBounds-01 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA SieveSingleMsgMbox-PT-d0m36-UpperBounds-02 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA SieveSingleMsgMbox-PT-d0m36-UpperBounds-05 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA SieveSingleMsgMbox-PT-d0m36-UpperBounds-06 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA SieveSingleMsgMbox-PT-d0m36-UpperBounds-08 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA SieveSingleMsgMbox-PT-d0m36-UpperBounds-10 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA SieveSingleMsgMbox-PT-d0m36-UpperBounds-11 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA SieveSingleMsgMbox-PT-d0m36-UpperBounds-13 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA SieveSingleMsgMbox-PT-d0m36-UpperBounds-14 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
Current structural bounds on expressions (Initially) : Max Seen:[0, 0, 0, 0, 0, 0] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (Before main loop) : Max Seen:[0, 0, 0, 0, 0, 0] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
// Phase 1: matrix 73 rows 72 cols
[2025-06-05 18:54:17] [INFO ] Computed 6 invariants in 9 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0, 0, 0, 0, 0, 0] Max Struct:[1, 1, 73, 1, 1, 1]
RANDOM walk for 10000 steps (2233 resets) in 28 ms. (344 steps per ms)
FORMULA SieveSingleMsgMbox-PT-d0m36-UpperBounds-12 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA SieveSingleMsgMbox-PT-d0m36-UpperBounds-04 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA SieveSingleMsgMbox-PT-d0m36-UpperBounds-03 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 30003 steps (3046 resets) in 58 ms. (508 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0, 0, 0] Max Struct:[73, 1, 1]
[2025-06-05 18:54:17] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-05 18:54:17] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-05 18:54:17] [INFO ] [Real]Absence check using 3 positive and 3 generalized place invariants in 2 ms returned sat
[2025-06-05 18:54:17] [INFO ] [Real]Absence check using state equation in 39 ms returned sat
[2025-06-05 18:54:17] [INFO ] State equation strengthened by 31 read => feed constraints.
[2025-06-05 18:54:17] [INFO ] [Real]Added 31 Read/Feed constraints in 13 ms returned sat
[2025-06-05 18:54:17] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-05 18:54:17] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-05 18:54:17] [INFO ] [Nat]Absence check using 3 positive and 3 generalized place invariants in 1 ms returned sat
[2025-06-05 18:54:17] [INFO ] [Nat]Absence check using state equation in 24 ms returned sat
[2025-06-05 18:54:18] [INFO ] [Nat]Added 31 Read/Feed constraints in 7 ms returned sat
[2025-06-05 18:54:18] [INFO ] Computed and/alt/rep : 22/34/22 causal constraints (skipped 50 transitions) in 18 ms.
[2025-06-05 18:54:18] [INFO ] Added : 11 causal constraints over 3 iterations in 58 ms. Result :sat
Minimization took 62 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-05 18:54:18] [INFO ] [Real]Absence check using 3 positive place invariants in 1 ms returned sat
[2025-06-05 18:54:18] [INFO ] [Real]Absence check using 3 positive and 3 generalized place invariants in 1 ms returned sat
[2025-06-05 18:54:18] [INFO ] [Real]Absence check using state equation in 28 ms returned sat
[2025-06-05 18:54:18] [INFO ] [Real]Added 31 Read/Feed constraints in 9 ms returned sat
[2025-06-05 18:54:18] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-05 18:54:18] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-05 18:54:18] [INFO ] [Nat]Absence check using 3 positive and 3 generalized place invariants in 1 ms returned sat
[2025-06-05 18:54:18] [INFO ] [Nat]Absence check using state equation in 26 ms returned sat
[2025-06-05 18:54:18] [INFO ] [Nat]Added 31 Read/Feed constraints in 7 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-05 18:54:18] [INFO ] Deduced a trap composed of 21 places in 54 ms of which 14 ms to minimize.
[2025-06-05 18:54:18] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 76 ms
[2025-06-05 18:54:18] [INFO ] Computed and/alt/rep : 22/34/22 causal constraints (skipped 50 transitions) in 9 ms.
[2025-06-05 18:54:18] [INFO ] Added : 12 causal constraints over 3 iterations in 39 ms. Result :sat
Minimization took 25 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-05 18:54:18] [INFO ] [Real]Absence check using 3 positive place invariants in 1 ms returned sat
[2025-06-05 18:54:18] [INFO ] [Real]Absence check using 3 positive and 3 generalized place invariants in 1 ms returned sat
[2025-06-05 18:54:18] [INFO ] [Real]Absence check using state equation in 20 ms returned sat
[2025-06-05 18:54:18] [INFO ] [Real]Added 31 Read/Feed constraints in 4 ms returned sat
[2025-06-05 18:54:18] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-05 18:54:18] [INFO ] [Nat]Absence check using 3 positive place invariants in 1 ms returned sat
[2025-06-05 18:54:18] [INFO ] [Nat]Absence check using 3 positive and 3 generalized place invariants in 1 ms returned sat
[2025-06-05 18:54:18] [INFO ] [Nat]Absence check using state equation in 18 ms returned sat
[2025-06-05 18:54:18] [INFO ] [Nat]Added 31 Read/Feed constraints in 5 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-05 18:54:18] [INFO ] Deduced a trap composed of 38 places in 40 ms of which 3 ms to minimize.
[2025-06-05 18:54:18] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 48 ms
[2025-06-05 18:54:18] [INFO ] Computed and/alt/rep : 22/34/22 causal constraints (skipped 50 transitions) in 6 ms.
[2025-06-05 18:54:18] [INFO ] Added : 9 causal constraints over 2 iterations in 25 ms. Result :sat
Minimization took 20 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0, 0, 0] Max Struct:[73, 1, 1]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0, 0, 0] Max Struct:[73, 1, 1]
Support contains 3 out of 72 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 72/72 places, 73/73 transitions.
Graph (complete) has 192 edges and 72 vertex of which 69 are kept as prefixes of interest. Removing 3 places using SCC suffix rule.1 ms
Discarding 3 places :
Also discarding 0 output transitions
Drop transitions (Empty/Sink Transition effects.) removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 0 with 2 rules applied. Total rules applied 3 place count 69 transition count 71
Discarding 7 places :
Symmetric choice reduction at 1 with 7 rule applications. Total rules 10 place count 62 transition count 64
Iterating global reduction 1 with 7 rules applied. Total rules applied 17 place count 62 transition count 64
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 18 place count 61 transition count 63
Iterating global reduction 1 with 1 rules applied. Total rules applied 19 place count 61 transition count 63
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 20 place count 60 transition count 62
Iterating global reduction 1 with 1 rules applied. Total rules applied 21 place count 60 transition count 62
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 1 with 1 rules applied. Total rules applied 22 place count 60 transition count 61
Applied a total of 22 rules in 34 ms. Remains 60 /72 variables (removed 12) and now considering 61/73 (removed 12) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 41 ms. Remains : 60/72 places, 61/73 transitions.
// Phase 1: matrix 61 rows 60 cols
[2025-06-05 18:54:18] [INFO ] Computed 4 invariants in 2 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0, 0, 0] Max Struct:[36, 1, 1]
RANDOM walk for 1000000 steps (223715 resets) in 807 ms. (1237 steps per ms)
BEST_FIRST walk for 3000001 steps (308512 resets) in 1113 ms. (2692 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0, 0, 0] Max Struct:[36, 1, 1]
[2025-06-05 18:54:20] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-05 18:54:20] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-05 18:54:20] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 2 ms returned sat
[2025-06-05 18:54:20] [INFO ] [Real]Absence check using state equation in 17 ms returned sat
[2025-06-05 18:54:20] [INFO ] State equation strengthened by 25 read => feed constraints.
[2025-06-05 18:54:20] [INFO ] [Real]Added 25 Read/Feed constraints in 6 ms returned sat
[2025-06-05 18:54:20] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-05 18:54:20] [INFO ] [Nat]Absence check using 3 positive place invariants in 1 ms returned sat
[2025-06-05 18:54:20] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2025-06-05 18:54:20] [INFO ] [Nat]Absence check using state equation in 15 ms returned sat
[2025-06-05 18:54:20] [INFO ] [Nat]Added 25 Read/Feed constraints in 3 ms returned sat
[2025-06-05 18:54:20] [INFO ] Computed and/alt/rep : 15/28/15 causal constraints (skipped 45 transitions) in 4 ms.
[2025-06-05 18:54:20] [INFO ] Added : 11 causal constraints over 3 iterations in 24 ms. Result :sat
Minimization took 23 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-05 18:54:20] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-05 18:54:20] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2025-06-05 18:54:20] [INFO ] [Real]Absence check using state equation in 16 ms returned sat
[2025-06-05 18:54:20] [INFO ] [Real]Added 25 Read/Feed constraints in 7 ms returned sat
[2025-06-05 18:54:20] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-05 18:54:20] [INFO ] [Nat]Absence check using 3 positive place invariants in 1 ms returned sat
[2025-06-05 18:54:20] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 4 ms returned sat
[2025-06-05 18:54:20] [INFO ] [Nat]Absence check using state equation in 17 ms returned sat
[2025-06-05 18:54:20] [INFO ] [Nat]Added 25 Read/Feed constraints in 4 ms returned sat
[2025-06-05 18:54:20] [INFO ] Computed and/alt/rep : 15/28/15 causal constraints (skipped 45 transitions) in 4 ms.
[2025-06-05 18:54:21] [INFO ] Added : 12 causal constraints over 3 iterations in 24 ms. Result :sat
Minimization took 17 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-05 18:54:21] [INFO ] [Real]Absence check using 3 positive place invariants in 1 ms returned sat
[2025-06-05 18:54:21] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2025-06-05 18:54:21] [INFO ] [Real]Absence check using state equation in 21 ms returned sat
[2025-06-05 18:54:21] [INFO ] [Real]Added 25 Read/Feed constraints in 9 ms returned sat
[2025-06-05 18:54:21] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-05 18:54:21] [INFO ] [Nat]Absence check using 3 positive place invariants in 1 ms returned sat
[2025-06-05 18:54:21] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 0 ms returned sat
[2025-06-05 18:54:21] [INFO ] [Nat]Absence check using state equation in 15 ms returned sat
[2025-06-05 18:54:21] [INFO ] [Nat]Added 25 Read/Feed constraints in 3 ms returned sat
[2025-06-05 18:54:21] [INFO ] Computed and/alt/rep : 15/28/15 causal constraints (skipped 45 transitions) in 7 ms.
[2025-06-05 18:54:21] [INFO ] Added : 12 causal constraints over 3 iterations in 26 ms. Result :sat
Minimization took 17 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0, 0, 0] Max Struct:[36, 1, 1]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0, 0, 0] Max Struct:[36, 1, 1]
Support contains 3 out of 60 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 60/60 places, 61/61 transitions.
Applied a total of 0 rules in 4 ms. Remains 60 /60 variables (removed 0) and now considering 61/61 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 4 ms. Remains : 60/60 places, 61/61 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 60/60 places, 61/61 transitions.
Applied a total of 0 rules in 3 ms. Remains 60 /60 variables (removed 0) and now considering 61/61 (removed 0) transitions.
[2025-06-05 18:54:21] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-05 18:54:21] [INFO ] Implicit Places using invariants in 45 ms returned []
[2025-06-05 18:54:21] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-05 18:54:21] [INFO ] State equation strengthened by 25 read => feed constraints.
[2025-06-05 18:54:21] [INFO ] Implicit Places using invariants and state equation in 98 ms returned []
Implicit Place search using SMT with State Equation took 145 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-05 18:54:21] [INFO ] Redundant transitions in 0 ms returned []
Running 60 sub problems to find dead transitions.
[2025-06-05 18:54:21] [INFO ] Invariant cache hit.
[2025-06-05 18:54:21] [INFO ] State equation strengthened by 25 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/59 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 60 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/59 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 60 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/59 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 60 unsolved
At refinement iteration 3 (OVERLAPS) 1/60 variables, 2/4 constraints. Problems are: Problem set: 0 solved, 60 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/60 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 60 unsolved
At refinement iteration 5 (OVERLAPS) 61/121 variables, 60/64 constraints. Problems are: Problem set: 0 solved, 60 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/121 variables, 25/89 constraints. Problems are: Problem set: 0 solved, 60 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/121 variables, 0/89 constraints. Problems are: Problem set: 0 solved, 60 unsolved
At refinement iteration 8 (OVERLAPS) 0/121 variables, 0/89 constraints. Problems are: Problem set: 0 solved, 60 unsolved
No progress, stopping.
After SMT solving in domain Real declared 121/121 variables, and 89 constraints, problems are : Problem set: 0 solved, 60 unsolved in 1162 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 60/60 constraints, ReadFeed: 25/25 constraints, PredecessorRefiner: 60/60 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 60 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/59 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 60 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/59 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 60 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/59 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 60 unsolved
At refinement iteration 3 (OVERLAPS) 1/60 variables, 2/4 constraints. Problems are: Problem set: 0 solved, 60 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/60 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 60 unsolved
At refinement iteration 5 (OVERLAPS) 61/121 variables, 60/64 constraints. Problems are: Problem set: 0 solved, 60 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/121 variables, 25/89 constraints. Problems are: Problem set: 0 solved, 60 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/121 variables, 60/149 constraints. Problems are: Problem set: 0 solved, 60 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-05 18:54:23] [INFO ] Deduced a trap along path composed of 3 places in 59 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-05 18:54:23] [INFO ] Deduced a trap along path composed of 14 places in 31 ms of which 1 ms to minimize.
At refinement iteration 8 (INCLUDED_ONLY) 0/121 variables, 2/151 constraints. Problems are: Problem set: 0 solved, 60 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/121 variables, 0/151 constraints. Problems are: Problem set: 0 solved, 60 unsolved
At refinement iteration 10 (OVERLAPS) 0/121 variables, 0/151 constraints. Problems are: Problem set: 0 solved, 60 unsolved
No progress, stopping.
After SMT solving in domain Int declared 121/121 variables, and 151 constraints, problems are : Problem set: 0 solved, 60 unsolved in 5885 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 60/60 constraints, ReadFeed: 25/25 constraints, PredecessorRefiner: 60/60 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 2/2 constraints]
After SMT, in 7103ms problems are : Problem set: 0 solved, 60 unsolved
Search for dead transitions found 0 dead transitions in 7108ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 7269 ms. Remains : 60/60 places, 61/61 transitions.
RANDOM walk for 40000 steps (8784 resets) in 851 ms. (46 steps per ms) remains 6/6 properties
[2025-06-05 18:54:28] [INFO ] Flatten gal took : 41 ms
[2025-06-05 18:54:28] [INFO ] Flatten gal took : 19 ms
BEST_FIRST walk for 40002 steps (4089 resets) in 221 ms. (180 steps per ms) remains 6/6 properties
[2025-06-05 18:54:28] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality8269634660639174850.gal : 13 ms
[2025-06-05 18:54:28] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality6087280907014491384.prop : 0 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality8269634660639174850.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality6087280907014491384.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...328
BEST_FIRST walk for 40004 steps (4127 resets) in 178 ms. (223 steps per ms) remains 6/6 properties
Loading property file /tmp/ReachabilityCardinality6087280907014491384.prop.
SDD proceeding with computation,6 properties remain. new max is 4
SDD size :1 after 7
SDD proceeding with computation,6 properties remain. new max is 8
SDD size :7 after 38
SDD proceeding with computation,6 properties remain. new max is 16
SDD size :38 after 137
SDD proceeding with computation,6 properties remain. new max is 32
SDD size :137 after 213
BEST_FIRST walk for 40001 steps (4168 resets) in 110 ms. (360 steps per ms) remains 6/6 properties
Invariant property MIN2 does not hold.
Reachability property MAX2 is true.
SDD proceeding with computation,4 properties remain. new max is 32
SDD size :213 after 474
SDD proceeding with computation,4 properties remain. new max is 64
SDD size :474 after 1109
BEST_FIRST walk for 40002 steps (4118 resets) in 135 ms. (294 steps per ms) remains 6/6 properties
SDD proceeding with computation,4 properties remain. new max is 128
SDD size :1109 after 2348
BEST_FIRST walk for 40001 steps (4056 resets) in 119 ms. (333 steps per ms) remains 6/6 properties
SDD proceeding with computation,4 properties remain. new max is 256
SDD size :2348 after 7393
BEST_FIRST walk for 40003 steps (4152 resets) in 126 ms. (314 steps per ms) remains 6/6 properties
SDD proceeding with computation,4 properties remain. new max is 512
SDD size :7393 after 24571
SDD proceeding with computation,4 properties remain. new max is 1024
SDD size :24571 after 88633
SDD proceeding with computation,4 properties remain. new max is 2048
SDD size :88633 after 371677
SDD proceeding with computation,4 properties remain. new max is 4096
SDD size :371677 after 1.30225e+06
SDD proceeding with computation,4 properties remain. new max is 8192
SDD size :1.30225e+06 after 5.0593e+06
SDD proceeding with computation,4 properties remain. new max is 16384
SDD size :5.0593e+06 after 1.43122e+07
Interrupted probabilistic random walk after 3378671 steps, run timeout after 3001 ms. (steps per millisecond=1125 ) properties seen :5 out of 6
Probabilistic random walk after 3378671 steps, saw 1469709 distinct states, run finished after 3005 ms. (steps per millisecond=1124 ) properties seen :5
[2025-06-05 18:54:32] [INFO ] Invariant cache hit.
[2025-06-05 18:54:32] [INFO ] State equation strengthened by 25 read => feed constraints.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 29/30 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/30 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 10/40 variables, 2/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/40 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 2/42 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/42 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 46/88 variables, 42/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/88 variables, 0/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 19/107 variables, 11/57 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/107 variables, 18/75 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/107 variables, 0/75 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 14/121 variables, 7/82 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/121 variables, 7/89 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-05 18:54:32] [INFO ] Deduced a trap composed of 10 places in 48 ms of which 2 ms to minimize.
Problem MAX0 is UNSAT
After SMT solving in domain Real declared 121/121 variables, and 90 constraints, problems are : Problem set: 1 solved, 0 unsolved in 143 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 60/60 constraints, ReadFeed: 25/25 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 146ms problems are : Problem set: 1 solved, 0 unsolved
Skipping Parikh replay, no witness traces provided.
ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
FORMULA SieveSingleMsgMbox-PT-d0m36-UpperBounds-15 1 TECHNIQUES REACHABILITY_MAX
FORMULA SieveSingleMsgMbox-PT-d0m36-UpperBounds-09 1 TECHNIQUES REACHABILITY_MAX
Current structural bounds on expressions (After reachability solving 2 queries.) : Max Seen:[0] Max Struct:[36]
Starting property specific reduction for SieveSingleMsgMbox-PT-d0m36-UpperBounds-07
Current structural bounds on expressions (Initially) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (Adding known information on max bounds.) : Max Seen:[0] Max Struct:[36]
Current structural bounds on expressions (Before main loop) : Max Seen:[0] Max Struct:[36]
[2025-06-05 18:54:32] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[36]
RANDOM walk for 10000 steps (2256 resets) in 8 ms. (1111 steps per ms)
BEST_FIRST walk for 10001 steps (1025 resets) in 5 ms. (1666 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0] Max Struct:[36]
[2025-06-05 18:54:32] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-05 18:54:32] [INFO ] [Real]Absence check using 3 positive place invariants in 1 ms returned sat
[2025-06-05 18:54:32] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 0 ms returned sat
[2025-06-05 18:54:32] [INFO ] [Real]Absence check using state equation in 15 ms returned sat
[2025-06-05 18:54:32] [INFO ] State equation strengthened by 25 read => feed constraints.
[2025-06-05 18:54:32] [INFO ] [Real]Added 25 Read/Feed constraints in 3 ms returned sat
[2025-06-05 18:54:32] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-05 18:54:32] [INFO ] [Nat]Absence check using 3 positive place invariants in 1 ms returned sat
[2025-06-05 18:54:32] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 2 ms returned sat
[2025-06-05 18:54:32] [INFO ] [Nat]Absence check using state equation in 16 ms returned sat
[2025-06-05 18:54:32] [INFO ] [Nat]Added 25 Read/Feed constraints in 3 ms returned sat
[2025-06-05 18:54:32] [INFO ] Computed and/alt/rep : 15/28/15 causal constraints (skipped 45 transitions) in 5 ms.
[2025-06-05 18:54:32] [INFO ] Added : 11 causal constraints over 3 iterations in 23 ms. Result :sat
Minimization took 21 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0] Max Struct:[36]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0] Max Struct:[36]
Support contains 1 out of 60 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 60/60 places, 61/61 transitions.
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 1 place count 59 transition count 60
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 59 transition count 60
Applied a total of 2 rules in 10 ms. Remains 59 /60 variables (removed 1) and now considering 60/61 (removed 1) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 10 ms. Remains : 59/60 places, 60/61 transitions.
// Phase 1: matrix 60 rows 59 cols
[2025-06-05 18:54:32] [INFO ] Computed 4 invariants in 4 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[36]
RANDOM walk for 1000000 steps (223885 resets) in 674 ms. (1481 steps per ms)
BEST_FIRST walk for 1000001 steps (103165 resets) in 347 ms. (2873 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0] Max Struct:[36]
[2025-06-05 18:54:33] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-05 18:54:33] [INFO ] [Real]Absence check using 3 positive place invariants in 1 ms returned sat
[2025-06-05 18:54:33] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2025-06-05 18:54:33] [INFO ] [Real]Absence check using state equation in 22 ms returned sat
[2025-06-05 18:54:33] [INFO ] State equation strengthened by 24 read => feed constraints.
[2025-06-05 18:54:33] [INFO ] [Real]Added 24 Read/Feed constraints in 3 ms returned sat
[2025-06-05 18:54:33] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-05 18:54:33] [INFO ] [Nat]Absence check using 3 positive place invariants in 1 ms returned sat
[2025-06-05 18:54:33] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 2 ms returned sat
[2025-06-05 18:54:33] [INFO ] [Nat]Absence check using state equation in 21 ms returned sat
[2025-06-05 18:54:33] [INFO ] [Nat]Added 24 Read/Feed constraints in 3 ms returned sat
[2025-06-05 18:54:33] [INFO ] Computed and/alt/rep : 15/28/15 causal constraints (skipped 44 transitions) in 4 ms.
[2025-06-05 18:54:33] [INFO ] Added : 11 causal constraints over 3 iterations in 26 ms. Result :sat
Minimization took 26 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0] Max Struct:[36]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0] Max Struct:[36]
Support contains 1 out of 59 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 59/59 places, 60/60 transitions.
Applied a total of 0 rules in 7 ms. Remains 59 /59 variables (removed 0) and now considering 60/60 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 7 ms. Remains : 59/59 places, 60/60 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 59/59 places, 60/60 transitions.
Applied a total of 0 rules in 5 ms. Remains 59 /59 variables (removed 0) and now considering 60/60 (removed 0) transitions.
[2025-06-05 18:54:33] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-05 18:54:33] [INFO ] Implicit Places using invariants in 49 ms returned []
[2025-06-05 18:54:33] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-05 18:54:33] [INFO ] State equation strengthened by 24 read => feed constraints.
[2025-06-05 18:54:33] [INFO ] Implicit Places using invariants and state equation in 81 ms returned []
Implicit Place search using SMT with State Equation took 132 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-05 18:54:33] [INFO ] Redundant transitions in 3 ms returned []
Running 59 sub problems to find dead transitions.
[2025-06-05 18:54:33] [INFO ] Invariant cache hit.
[2025-06-05 18:54:33] [INFO ] State equation strengthened by 24 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/58 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 59 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/58 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 59 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/58 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 59 unsolved
At refinement iteration 3 (OVERLAPS) 1/59 variables, 2/4 constraints. Problems are: Problem set: 0 solved, 59 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/59 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 59 unsolved
At refinement iteration 5 (OVERLAPS) 60/119 variables, 59/63 constraints. Problems are: Problem set: 0 solved, 59 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/119 variables, 24/87 constraints. Problems are: Problem set: 0 solved, 59 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/119 variables, 0/87 constraints. Problems are: Problem set: 0 solved, 59 unsolved
At refinement iteration 8 (OVERLAPS) 0/119 variables, 0/87 constraints. Problems are: Problem set: 0 solved, 59 unsolved
No progress, stopping.
After SMT solving in domain Real declared 119/119 variables, and 87 constraints, problems are : Problem set: 0 solved, 59 unsolved in 1053 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 59/59 constraints, ReadFeed: 24/24 constraints, PredecessorRefiner: 59/59 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 59 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/58 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 59 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/58 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 59 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/58 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 59 unsolved
At refinement iteration 3 (OVERLAPS) 1/59 variables, 2/4 constraints. Problems are: Problem set: 0 solved, 59 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/59 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 59 unsolved
At refinement iteration 5 (OVERLAPS) 60/119 variables, 59/63 constraints. Problems are: Problem set: 0 solved, 59 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/119 variables, 24/87 constraints. Problems are: Problem set: 0 solved, 59 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/119 variables, 59/146 constraints. Problems are: Problem set: 0 solved, 59 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-05 18:54:36] [INFO ] Deduced a trap along path composed of 9 places in 31 ms of which 1 ms to minimize.
At refinement iteration 8 (INCLUDED_ONLY) 0/119 variables, 1/147 constraints. Problems are: Problem set: 0 solved, 59 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-05 18:54:37] [INFO ] Deduced a trap along path composed of 3 places in 34 ms of which 1 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/119 variables, 1/148 constraints. Problems are: Problem set: 0 solved, 59 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/119 variables, 0/148 constraints. Problems are: Problem set: 0 solved, 59 unsolved
At refinement iteration 11 (OVERLAPS) 0/119 variables, 0/148 constraints. Problems are: Problem set: 0 solved, 59 unsolved
No progress, stopping.
After SMT solving in domain Int declared 119/119 variables, and 148 constraints, problems are : Problem set: 0 solved, 59 unsolved in 7112 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 59/59 constraints, ReadFeed: 24/24 constraints, PredecessorRefiner: 59/59 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 2/2 constraints]
After SMT, in 8189ms problems are : Problem set: 0 solved, 59 unsolved
Search for dead transitions found 0 dead transitions in 8191ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 8337 ms. Remains : 59/59 places, 60/60 transitions.
[2025-06-05 18:54:41] [INFO ] Flatten gal took : 11 ms
[2025-06-05 18:54:41] [INFO ] Flatten gal took : 9 ms
[2025-06-05 18:54:41] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality5756354029553436204.gal : 2 ms
[2025-06-05 18:54:41] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality11406497976710712500.prop : 0 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality5756354029553436204.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality11406497976710712500.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...329
Loading property file /tmp/ReachabilityCardinality11406497976710712500.prop.
SDD proceeding with computation,2 properties remain. new max is 4
SDD size :1 after 7
SDD proceeding with computation,2 properties remain. new max is 8
SDD size :7 after 38
SDD proceeding with computation,2 properties remain. new max is 16
SDD size :38 after 137
SDD proceeding with computation,2 properties remain. new max is 32
SDD size :137 after 213
SDD proceeding with computation,2 properties remain. new max is 64
SDD size :213 after 529
SDD proceeding with computation,2 properties remain. new max is 128
SDD size :529 after 1499
SDD proceeding with computation,2 properties remain. new max is 256
SDD size :1499 after 4501
RANDOM walk for 40000 steps (8958 resets) in 376 ms. (106 steps per ms) remains 2/2 properties
BEST_FIRST walk for 40002 steps (4098 resets) in 71 ms. (555 steps per ms) remains 2/2 properties
BEST_FIRST walk for 40004 steps (4129 resets) in 58 ms. (678 steps per ms) remains 2/2 properties
SDD proceeding with computation,2 properties remain. new max is 512
SDD size :4501 after 16605
SDD proceeding with computation,2 properties remain. new max is 1024
SDD size :16605 after 60189
SDD proceeding with computation,2 properties remain. new max is 2048
SDD size :60189 after 599229
SDD proceeding with computation,2 properties remain. new max is 4096
SDD size :599229 after 1.49111e+07
SDD proceeding with computation,2 properties remain. new max is 8192
SDD size :1.49111e+07 after 2.20585e+07
Invariant property MIN0 does not hold.
SDD proceeding with computation,1 properties remain. new max is 8192
SDD size :2.20585e+07 after 5.8569e+08
Interrupted probabilistic random walk after 3454119 steps, run timeout after 3001 ms. (steps per millisecond=1150 ) properties seen :1 out of 2
Probabilistic random walk after 3454119 steps, saw 1525950 distinct states, run finished after 3001 ms. (steps per millisecond=1150 ) properties seen :1
[2025-06-05 18:54:45] [INFO ] Invariant cache hit.
[2025-06-05 18:54:45] [INFO ] State equation strengthened by 24 read => feed constraints.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 28/29 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/29 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 10/39 variables, 2/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-05 18:54:45] [INFO ] Deduced a trap composed of 20 places in 27 ms of which 2 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/39 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/39 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 2/41 variables, 1/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/41 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 45/86 variables, 41/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/86 variables, 0/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 19/105 variables, 11/57 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/105 variables, 17/74 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-05 18:54:45] [INFO ] Deduced a trap composed of 10 places in 39 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-05 18:54:45] [INFO ] Deduced a trap composed of 10 places in 35 ms of which 4 ms to minimize.
Problem MAX0 is UNSAT
After SMT solving in domain Real declared 105/119 variables, and 76 constraints, problems are : Problem set: 1 solved, 0 unsolved in 168 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 52/59 constraints, ReadFeed: 17/24 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 3/3 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 172ms problems are : Problem set: 1 solved, 0 unsolved
Skipping Parikh replay, no witness traces provided.
ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
Current structural bounds on expressions (After reachability solving 0 queries.) : Max Seen:[0] Max Struct:[36]
Ending property specific reduction for SieveSingleMsgMbox-PT-d0m36-UpperBounds-07 in 13078 ms.
[2025-06-05 18:54:45] [INFO ] Flatten gal took : 7 ms
[2025-06-05 18:54:45] [INFO ] Applying decomposition
[2025-06-05 18:54:45] [INFO ] Flatten gal took : 5 ms
Converted graph to binary with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/convert-linux64' '-i' '/tmp/graph18305030959553802207.txt' '-o' '/tmp/graph18305030959553802207.bin' '-w' '/tmp/graph18305030959553802207.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/louvain-linux64' '/tmp/graph18305030959553802207.bin' '-l' '-1' '-v' '-w' '/tmp/graph18305030959553802207.weights' '-q' '0' '-e' '0.001'
[2025-06-05 18:54:45] [INFO ] Decomposing Gal with order
[2025-06-05 18:54:45] [INFO ] Rewriting arrays to variables to allow decomposition.
[2025-06-05 18:54:45] [INFO ] Removed a total of 55 redundant transitions.
[2025-06-05 18:54:45] [INFO ] Flatten gal took : 34 ms
[2025-06-05 18:54:45] [INFO ] Fuse similar labels procedure discarded/fused a total of 30 labels/synchronizations in 4 ms.
[2025-06-05 18:54:45] [INFO ] Time to serialize gal into /tmp/UpperBounds16757455433008036788.gal : 3 ms
[2025-06-05 18:54:45] [INFO ] Time to serialize properties into /tmp/UpperBounds10292783907100704100.prop : 1 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/UpperBounds16757455433008036788.gal' '-t' 'CGAL' '-reachable-file' '/tmp/UpperBounds10292783907100704100.prop' '--nowitness'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...285
Loading property file /tmp/UpperBounds10292783907100704100.prop.
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\_mod\_flat,1.9464e+10,660.088,2213228,7768,1198,2.44187e+06,32779,184,6.32885e+06,76,206271,0
Total reachable state count : 19464022269

Verifying 1 reachability properties.
Min sum of variable value : 0
Maximum sum along a path : 32
Bounds property SieveSingleMsgMbox-PT-d0m36-UpperBounds-07 :0 <= u7.l204 <= 32
FORMULA SieveSingleMsgMbox-PT-d0m36-UpperBounds-07 32 TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
SieveSingleMsgMbox-PT-d0m36-UpperBounds-07,0,663.539,2213484,1,0,2.44187e+06,64119,262,6.32885e+06,124,407182,3660
Total runtime 692311 ms.

BK_STOP 1749150349695

--------------------
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_1.0.0.202505121319.jar
+ VERSION=202505121319
+ echo 'Running Version 202505121319'
+ /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="SieveSingleMsgMbox-PT-d0m36"
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 2-5832"
echo " Executing tool itstools"
echo " Input is SieveSingleMsgMbox-PT-d0m36, 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 r212-tall-174901994200381"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/SieveSingleMsgMbox-PT-d0m36.tgz
mv SieveSingleMsgMbox-PT-d0m36 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 ;