Execution Chart

Sorry, for this execution, no execution chart could be reported.

Trace from the execution

Formatting '/data/fkordon/mcc2025-input.r128-smll-174876524800549.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)
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=====================================================================
Generated by BenchKit 2-5832
Executing tool itstools
Input is Murphy-COL-D3N050, examination is UpperBounds
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r128-smll-174876524800549
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 484K
-rw-r--r-- 1 mcc users 8.0K May 29 14:47 CTLCardinality.txt
-rw-r--r-- 1 mcc users 93K May 29 14:47 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.5K May 29 14:47 CTLFireability.txt
-rw-r--r-- 1 mcc users 55K May 29 14:47 CTLFireability.xml
-rw-r--r-- 1 mcc users 3.9K May 29 14:47 LTLCardinality.txt
-rw-r--r-- 1 mcc users 30K May 29 14:47 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.1K 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 9.3K May 29 14:47 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 100K May 29 14:47 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 9.4K May 29 14:47 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 92K May 29 14:47 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K May 29 14:47 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.6K May 29 14:47 UpperBounds.xml
-rw-r--r-- 1 mcc users 5 May 29 14:32 equiv_pt
-rw-r--r-- 1 mcc users 7 May 29 14:32 instance
-rw-r--r-- 1 mcc users 5 May 29 14:32 iscolored
-rw-r--r-- 1 mcc users 20K May 29 14:32 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 Murphy-COL-D3N050-UpperBounds-00
FORMULA_NAME Murphy-COL-D3N050-UpperBounds-01
FORMULA_NAME Murphy-COL-D3N050-UpperBounds-02
FORMULA_NAME Murphy-COL-D3N050-UpperBounds-03
FORMULA_NAME Murphy-COL-D3N050-UpperBounds-04
FORMULA_NAME Murphy-COL-D3N050-UpperBounds-05
FORMULA_NAME Murphy-COL-D3N050-UpperBounds-06
FORMULA_NAME Murphy-COL-D3N050-UpperBounds-07
FORMULA_NAME Murphy-COL-D3N050-UpperBounds-08
FORMULA_NAME Murphy-COL-D3N050-UpperBounds-09
FORMULA_NAME Murphy-COL-D3N050-UpperBounds-10
FORMULA_NAME Murphy-COL-D3N050-UpperBounds-11
FORMULA_NAME Murphy-COL-D3N050-UpperBounds-12
FORMULA_NAME Murphy-COL-D3N050-UpperBounds-13
FORMULA_NAME Murphy-COL-D3N050-UpperBounds-14
FORMULA_NAME Murphy-COL-D3N050-UpperBounds-15

=== Now, execution of the tool begins

BK_START 1749305720251

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=UpperBounds
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=Murphy-COL-D3N050
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is COL
UpperBounds COL
Running Version 202505121319
[2025-06-07 14:15:22] [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]
[2025-06-07 14:15:22] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2025-06-07 14:15:22] [INFO ] Detected file is not PT type :http://www.pnml.org/version-2009/grammar/symmetricnet
log4j:WARN No appenders could be found for logger (org.apache.axiom.locator.DefaultOMMetaFactoryLocator).
log4j:WARN Please initialize the log4j system properly.
log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.
[2025-06-07 14:15:23] [WARNING] Using fallBack plugin, rng conformance not checked
[2025-06-07 14:15:23] [INFO ] Load time of PNML (colored model parsed with PNMLFW) : 920 ms
[2025-06-07 14:15:23] [INFO ] Imported 6 HL places and 7 HL transitions for a total of 24 PT places and 28.0 transition bindings in 27 ms.
Parsed 16 properties from file /home/mcc/execution/UpperBounds.xml in 7 ms.
Reduction of identical properties reduced properties to check from 16 to 6
[2025-06-07 14:15:23] [INFO ] Built PT skeleton of HLPN with 6 places and 7 transitions 27 arcs in 7 ms.
[2025-06-07 14:15:23] [INFO ] Skeletonized 6 HLPN properties in 1 ms.
// Phase 1: matrix 7 rows 6 cols
[2025-06-07 14:15:23] [INFO ] Computed 2 invariants in 7 ms
Current structural bounds on expressions (after Invariants on skeleton) : Max Seen:[0, 12, 4, 0, 200, 4] Max Struct:[+inf, +inf, 204, +inf, 204, 204]
[2025-06-07 14:15:23] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-07 14:15:24] [INFO ] [Real]Absence check using 2 positive place invariants in 7 ms returned sat
[2025-06-07 14:15:24] [INFO ] [Real]Absence check using state equation in 17 ms returned sat
[2025-06-07 14:15:24] [INFO ] State equation strengthened by 2 read => feed constraints.
[2025-06-07 14:15:24] [INFO ] [Real]Added 2 Read/Feed constraints in 5 ms returned sat
[2025-06-07 14:15:24] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-07 14:15:24] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-07 14:15:24] [INFO ] [Nat]Absence check using state equation in 13 ms returned sat
[2025-06-07 14:15:24] [INFO ] [Nat]Added 2 Read/Feed constraints in 2 ms returned sat
[2025-06-07 14:15:24] [INFO ] Computed and/alt/rep : 4/8/4 causal constraints (skipped 0 transitions) in 4 ms.
[2025-06-07 14:15:24] [INFO ] Added : 0 causal constraints over 0 iterations in 15 ms. Result :sat
Minimization took 7 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-07 14:15:24] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-07 14:15:24] [INFO ] [Real]Absence check using state equation in 7 ms returned sat
[2025-06-07 14:15:24] [INFO ] [Real]Added 2 Read/Feed constraints in 1 ms returned sat
[2025-06-07 14:15:24] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-07 14:15:24] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-07 14:15:24] [INFO ] [Nat]Absence check using state equation in 6 ms returned sat
[2025-06-07 14:15:24] [INFO ] [Nat]Added 2 Read/Feed constraints in 12 ms returned sat
[2025-06-07 14:15:24] [INFO ] Computed and/alt/rep : 4/8/4 causal constraints (skipped 0 transitions) in 2 ms.
[2025-06-07 14:15:24] [INFO ] Added : 3 causal constraints over 1 iterations in 10 ms. Result :sat
Minimization took 4 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-07 14:15:24] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-07 14:15:24] [INFO ] [Real]Absence check using state equation in 9 ms returned sat
[2025-06-07 14:15:24] [INFO ] [Real]Added 2 Read/Feed constraints in 1 ms returned sat
[2025-06-07 14:15:24] [INFO ] Computed and/alt/rep : 4/8/4 causal constraints (skipped 0 transitions) in 1 ms.
[2025-06-07 14:15:24] [INFO ] Added : 0 causal constraints over 0 iterations in 5 ms. Result :sat
Minimization took 3 ms.
[2025-06-07 14:15:24] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-07 14:15:24] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-07 14:15:24] [INFO ] [Nat]Absence check using state equation in 7 ms returned sat
[2025-06-07 14:15:24] [INFO ] [Nat]Added 2 Read/Feed constraints in 5 ms returned sat
[2025-06-07 14:15:24] [INFO ] Computed and/alt/rep : 4/8/4 causal constraints (skipped 0 transitions) in 2 ms.
[2025-06-07 14:15:24] [INFO ] Added : 0 causal constraints over 0 iterations in 7 ms. Result :sat
Minimization took 4 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-07 14:15:24] [INFO ] [Real]Absence check using 2 positive place invariants in 1 ms returned sat
[2025-06-07 14:15:24] [INFO ] [Real]Absence check using state equation in 7 ms returned sat
[2025-06-07 14:15:24] [INFO ] [Real]Added 2 Read/Feed constraints in 1 ms returned sat
[2025-06-07 14:15:24] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-07 14:15:24] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-07 14:15:24] [INFO ] [Nat]Absence check using state equation in 8 ms returned sat
[2025-06-07 14:15:24] [INFO ] [Nat]Added 2 Read/Feed constraints in 2 ms returned sat
[2025-06-07 14:15:24] [INFO ] Computed and/alt/rep : 4/8/4 causal constraints (skipped 0 transitions) in 3 ms.
[2025-06-07 14:15:24] [INFO ] Added : 0 causal constraints over 0 iterations in 7 ms. Result :sat
Minimization took 5 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-07 14:15:24] [INFO ] [Real]Absence check using 2 positive place invariants in 1 ms returned sat
[2025-06-07 14:15:24] [INFO ] [Real]Absence check using state equation in 5 ms returned sat
[2025-06-07 14:15:24] [INFO ] [Real]Added 2 Read/Feed constraints in 1 ms returned sat
[2025-06-07 14:15:24] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-07 14:15:24] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-07 14:15:24] [INFO ] [Nat]Absence check using state equation in 9 ms returned sat
[2025-06-07 14:15:24] [INFO ] [Nat]Added 2 Read/Feed constraints in 2 ms returned sat
[2025-06-07 14:15:24] [INFO ] Computed and/alt/rep : 4/8/4 causal constraints (skipped 0 transitions) in 3 ms.
[2025-06-07 14:15:24] [INFO ] Added : 1 causal constraints over 1 iterations in 11 ms. Result :sat
Minimization took 4 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-07 14:15:24] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-07 14:15:24] [INFO ] [Real]Absence check using state equation in 7 ms returned sat
[2025-06-07 14:15:24] [INFO ] [Real]Added 2 Read/Feed constraints in 1 ms returned sat
[2025-06-07 14:15:24] [INFO ] Computed and/alt/rep : 4/8/4 causal constraints (skipped 0 transitions) in 2 ms.
[2025-06-07 14:15:24] [INFO ] Added : 0 causal constraints over 0 iterations in 8 ms. Result :sat
Minimization took 8 ms.
[2025-06-07 14:15:24] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-07 14:15:24] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-07 14:15:24] [INFO ] [Nat]Absence check using state equation in 8 ms returned sat
[2025-06-07 14:15:24] [INFO ] [Nat]Added 2 Read/Feed constraints in 5 ms returned sat
[2025-06-07 14:15:24] [INFO ] Computed and/alt/rep : 4/8/4 causal constraints (skipped 0 transitions) in 4 ms.
[2025-06-07 14:15:24] [INFO ] Added : 0 causal constraints over 0 iterations in 9 ms. Result :sat
Minimization took 4 ms.
Current structural bounds on expressions (after SMT on skeleton) : Max Seen:[0, 12, 4, 0, 200, 4] Max Struct:[+inf, +inf, 204, +inf, 204, 204]
Arc [0:1*[(MOD (ADD $x 1) 4)]] contains successor/predecessor on variables of sort CD
[2025-06-07 14:15:24] [INFO ] Unfolded HLPN to a Petri net with 24 places and 28 transitions 108 arcs in 32 ms.
[2025-06-07 14:15:24] [INFO ] Unfolded 6 HLPN properties in 0 ms.
Current structural bounds on expressions (Initially) : Max Seen:[0, 12, 4, 0, 200, 4] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (Adding known information on max bounds.) : Max Seen:[0, 12, 4, 0, 200, 4] Max Struct:[+inf, +inf, 204, +inf, 204, 204]
Current structural bounds on expressions (Before main loop) : Max Seen:[0, 12, 4, 0, 200, 4] Max Struct:[+inf, +inf, 204, +inf, 204, 204]
// Phase 1: matrix 28 rows 24 cols
[2025-06-07 14:15:24] [INFO ] Computed 5 invariants in 3 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0, 12, 4, 0, 200, 4] Max Struct:[+inf, +inf, 204, +inf, 204, 204]
RANDOM walk for 10021 steps (2 resets) in 45 ms. (217 steps per ms)
FORMULA Murphy-COL-D3N050-UpperBounds-15 204 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA Murphy-COL-D3N050-UpperBounds-07 204 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA Murphy-COL-D3N050-UpperBounds-08 204 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA Murphy-COL-D3N050-UpperBounds-12 204 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA Murphy-COL-D3N050-UpperBounds-04 204 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 40004 steps (8 resets) in 93 ms. (425 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[4, 12, 8, 202] Max Struct:[+inf, +inf, +inf, 204]
[2025-06-07 14:15:24] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-07 14:15:25] [INFO ] [Real]Absence check using 2 positive place invariants in 12 ms returned sat
[2025-06-07 14:15:25] [INFO ] [Real]Absence check using 2 positive and 3 generalized place invariants in 2 ms returned sat
[2025-06-07 14:15:25] [INFO ] [Real]Absence check using state equation in 26 ms returned sat
[2025-06-07 14:15:25] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-07 14:15:25] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-07 14:15:25] [INFO ] [Nat]Absence check using 2 positive and 3 generalized place invariants in 1 ms returned sat
[2025-06-07 14:15:25] [INFO ] [Nat]Absence check using state equation in 35 ms returned sat
[2025-06-07 14:15:25] [INFO ] State equation strengthened by 8 read => feed constraints.
[2025-06-07 14:15:25] [INFO ] [Nat]Added 8 Read/Feed constraints in 4 ms returned sat
[2025-06-07 14:15:25] [INFO ] Computed and/alt/rep : 16/40/16 causal constraints (skipped 0 transitions) in 4 ms.
[2025-06-07 14:15:25] [INFO ] Added : 2 causal constraints over 1 iterations in 18 ms. Result :sat
Minimization took 6 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-07 14:15:25] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-07 14:15:25] [INFO ] [Real]Absence check using 2 positive and 3 generalized place invariants in 2 ms returned sat
[2025-06-07 14:15:25] [INFO ] [Real]Absence check using state equation in 21 ms returned sat
[2025-06-07 14:15:25] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-07 14:15:25] [INFO ] [Nat]Absence check using 2 positive place invariants in 1 ms returned sat
[2025-06-07 14:15:25] [INFO ] [Nat]Absence check using 2 positive and 3 generalized place invariants in 1 ms returned sat
[2025-06-07 14:15:25] [INFO ] [Nat]Absence check using state equation in 23 ms returned sat
[2025-06-07 14:15:25] [INFO ] [Nat]Added 8 Read/Feed constraints in 5 ms returned sat
[2025-06-07 14:15:25] [INFO ] Computed and/alt/rep : 16/40/16 causal constraints (skipped 0 transitions) in 4 ms.
[2025-06-07 14:15:25] [INFO ] Added : 3 causal constraints over 1 iterations in 15 ms. Result :sat
Minimization took 7 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-07 14:15:25] [INFO ] [Real]Absence check using 2 positive place invariants in 3 ms returned sat
[2025-06-07 14:15:25] [INFO ] [Real]Absence check using 2 positive and 3 generalized place invariants in 2 ms returned sat
[2025-06-07 14:15:25] [INFO ] [Real]Absence check using state equation in 17 ms returned sat
[2025-06-07 14:15:25] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-07 14:15:25] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-07 14:15:25] [INFO ] [Nat]Absence check using 2 positive and 3 generalized place invariants in 1 ms returned sat
[2025-06-07 14:15:25] [INFO ] [Nat]Absence check using state equation in 21 ms returned sat
[2025-06-07 14:15:25] [INFO ] [Nat]Added 8 Read/Feed constraints in 6 ms returned sat
[2025-06-07 14:15:25] [INFO ] Computed and/alt/rep : 16/40/16 causal constraints (skipped 0 transitions) in 5 ms.
[2025-06-07 14:15:25] [INFO ] Added : 2 causal constraints over 1 iterations in 17 ms. Result :sat
Minimization took 7 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-07 14:15:25] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-07 14:15:25] [INFO ] [Real]Absence check using 2 positive and 3 generalized place invariants in 2 ms returned sat
[2025-06-07 14:15:25] [INFO ] [Real]Absence check using state equation in 22 ms returned sat
[2025-06-07 14:15:25] [INFO ] [Real]Added 8 Read/Feed constraints in 2 ms returned sat
[2025-06-07 14:15:25] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-07 14:15:25] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-07 14:15:25] [INFO ] [Nat]Absence check using 2 positive and 3 generalized place invariants in 1 ms returned sat
[2025-06-07 14:15:25] [INFO ] [Nat]Absence check using state equation in 24 ms returned sat
[2025-06-07 14:15:25] [INFO ] [Nat]Added 8 Read/Feed constraints in 4 ms returned sat
[2025-06-07 14:15:25] [INFO ] Computed and/alt/rep : 16/40/16 causal constraints (skipped 0 transitions) in 9 ms.
[2025-06-07 14:15:25] [INFO ] Added : 8 causal constraints over 3 iterations in 34 ms. Result :sat
Minimization took 13 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[4, 12, 8, 202] Max Struct:[+inf, +inf, +inf, 204]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[4, 12, 8, 202] Max Struct:[+inf, +inf, +inf, 204]
Support contains 16 out of 24 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 24/24 places, 28/28 transitions.
Applied a total of 0 rules in 12 ms. Remains 24 /24 variables (removed 0) and now considering 28/28 (removed 0) transitions.
Running 16 sub problems to find dead transitions.
[2025-06-07 14:15:25] [INFO ] Invariant cache hit.
[2025-06-07 14:15:25] [INFO ] State equation strengthened by 8 read => feed constraints.
Starting Z3 with timeout 20.0 s and query timeout 2000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/16 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/16 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 2 (OVERLAPS) 4/20 variables, 2/5 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/20 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 4 (OVERLAPS) 28/48 variables, 20/25 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/48 variables, 8/33 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/48 variables, 0/33 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 7 (OVERLAPS) 4/52 variables, 4/37 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/52 variables, 0/37 constraints. Problems are: Problem set: 0 solved, 16 unsolved
All remaining problems are real, not stopping.
At refinement iteration 9 (OVERLAPS) 0/52 variables, 0/37 constraints. Problems are: Problem set: 0 solved, 16 unsolved
No progress, stopping.
After SMT solving in domain Real declared 52/52 variables, and 37 constraints, problems are : Problem set: 0 solved, 16 unsolved in 659 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 3/3 constraints, State Equation: 24/24 constraints, ReadFeed: 8/8 constraints, PredecessorRefiner: 16/16 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 16 unsolved
Starting Z3 with timeout 20.0 s and query timeout 2000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/16 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/16 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 2 (OVERLAPS) 4/20 variables, 2/5 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/20 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 4 (OVERLAPS) 28/48 variables, 20/25 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/48 variables, 8/33 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/48 variables, 0/33 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 7 (OVERLAPS) 4/52 variables, 4/37 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/52 variables, 16/53 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/52 variables, 0/53 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 10 (OVERLAPS) 0/52 variables, 0/53 constraints. Problems are: Problem set: 0 solved, 16 unsolved
No progress, stopping.
After SMT solving in domain Int declared 52/52 variables, and 53 constraints, problems are : Problem set: 0 solved, 16 unsolved in 664 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 3/3 constraints, State Equation: 24/24 constraints, ReadFeed: 8/8 constraints, PredecessorRefiner: 16/16 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 1359ms problems are : Problem set: 0 solved, 16 unsolved
Search for dead transitions found 0 dead transitions in 1368ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 1393 ms. Remains : 24/24 places, 28/28 transitions.
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {13=1, 17=1, 25=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {13=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 98 ms. (steps per millisecond=102 ) properties (out of 4) seen :[4, 12, 8, 200]
Current structural bounds on expressions (after cover walk) : Max Seen:[4, 12, 8, 202] Max Struct:[+inf, +inf, +inf, 204]
[2025-06-07 14:15:27] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[4, 12, 8, 202] Max Struct:[+inf, +inf, +inf, 204]
RANDOM walk for 1000050 steps (2 resets) in 963 ms. (1037 steps per ms)
BEST_FIRST walk for 4000003 steps (8 resets) in 2700 ms. (1480 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[4, 12, 8, 202] Max Struct:[+inf, +inf, +inf, 204]
[2025-06-07 14:15:30] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 14:15:31] [INFO ] [Real]Absence check using 2 positive place invariants in 3 ms returned sat
[2025-06-07 14:15:31] [INFO ] [Real]Absence check using 2 positive and 3 generalized place invariants in 2 ms returned sat
[2025-06-07 14:15:31] [INFO ] [Real]Absence check using state equation in 24 ms returned sat
[2025-06-07 14:15:31] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 14:15:31] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-07 14:15:31] [INFO ] [Nat]Absence check using 2 positive and 3 generalized place invariants in 2 ms returned sat
[2025-06-07 14:15:31] [INFO ] [Nat]Absence check using state equation in 19 ms returned sat
[2025-06-07 14:15:31] [INFO ] State equation strengthened by 8 read => feed constraints.
[2025-06-07 14:15:31] [INFO ] [Nat]Added 8 Read/Feed constraints in 4 ms returned sat
[2025-06-07 14:15:31] [INFO ] Computed and/alt/rep : 16/40/16 causal constraints (skipped 0 transitions) in 5 ms.
[2025-06-07 14:15:31] [INFO ] Added : 2 causal constraints over 1 iterations in 15 ms. Result :sat
Minimization took 12 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 14:15:31] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-07 14:15:31] [INFO ] [Real]Absence check using 2 positive and 3 generalized place invariants in 2 ms returned sat
[2025-06-07 14:15:31] [INFO ] [Real]Absence check using state equation in 18 ms returned sat
[2025-06-07 14:15:31] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 14:15:31] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-07 14:15:31] [INFO ] [Nat]Absence check using 2 positive and 3 generalized place invariants in 2 ms returned sat
[2025-06-07 14:15:31] [INFO ] [Nat]Absence check using state equation in 19 ms returned sat
[2025-06-07 14:15:31] [INFO ] [Nat]Added 8 Read/Feed constraints in 5 ms returned sat
[2025-06-07 14:15:31] [INFO ] Computed and/alt/rep : 16/40/16 causal constraints (skipped 0 transitions) in 4 ms.
[2025-06-07 14:15:31] [INFO ] Added : 3 causal constraints over 1 iterations in 15 ms. Result :sat
Minimization took 11 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 14:15:31] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-07 14:15:31] [INFO ] [Real]Absence check using 2 positive and 3 generalized place invariants in 2 ms returned sat
[2025-06-07 14:15:31] [INFO ] [Real]Absence check using state equation in 19 ms returned sat
[2025-06-07 14:15:31] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 14:15:31] [INFO ] [Nat]Absence check using 2 positive place invariants in 1 ms returned sat
[2025-06-07 14:15:31] [INFO ] [Nat]Absence check using 2 positive and 3 generalized place invariants in 2 ms returned sat
[2025-06-07 14:15:31] [INFO ] [Nat]Absence check using state equation in 19 ms returned sat
[2025-06-07 14:15:31] [INFO ] [Nat]Added 8 Read/Feed constraints in 3 ms returned sat
[2025-06-07 14:15:31] [INFO ] Computed and/alt/rep : 16/40/16 causal constraints (skipped 0 transitions) in 5 ms.
[2025-06-07 14:15:31] [INFO ] Added : 2 causal constraints over 1 iterations in 15 ms. Result :sat
Minimization took 12 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 14:15:31] [INFO ] [Real]Absence check using 2 positive place invariants in 1 ms returned sat
[2025-06-07 14:15:31] [INFO ] [Real]Absence check using 2 positive and 3 generalized place invariants in 1 ms returned sat
[2025-06-07 14:15:31] [INFO ] [Real]Absence check using state equation in 16 ms returned sat
[2025-06-07 14:15:31] [INFO ] [Real]Added 8 Read/Feed constraints in 3 ms returned sat
[2025-06-07 14:15:31] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 14:15:31] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-07 14:15:31] [INFO ] [Nat]Absence check using 2 positive and 3 generalized place invariants in 2 ms returned sat
[2025-06-07 14:15:31] [INFO ] [Nat]Absence check using state equation in 16 ms returned sat
[2025-06-07 14:15:31] [INFO ] [Nat]Added 8 Read/Feed constraints in 3 ms returned sat
[2025-06-07 14:15:31] [INFO ] Computed and/alt/rep : 16/40/16 causal constraints (skipped 0 transitions) in 4 ms.
[2025-06-07 14:15:31] [INFO ] Added : 8 causal constraints over 3 iterations in 27 ms. Result :sat
Minimization took 23 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[4, 12, 8, 202] Max Struct:[+inf, +inf, +inf, 204]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[4, 12, 8, 202] Max Struct:[+inf, +inf, +inf, 204]
Support contains 16 out of 24 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 24/24 places, 28/28 transitions.
Applied a total of 0 rules in 2 ms. Remains 24 /24 variables (removed 0) and now considering 28/28 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 3 ms. Remains : 24/24 places, 28/28 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 24/24 places, 28/28 transitions.
Applied a total of 0 rules in 1 ms. Remains 24 /24 variables (removed 0) and now considering 28/28 (removed 0) transitions.
[2025-06-07 14:15:31] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-07 14:15:31] [INFO ] Implicit Places using invariants in 58 ms returned [8, 9, 10, 11]
Discarding 4 places :
Implicit Place search using SMT only with invariants took 63 ms to find 4 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 1 : 20/24 places, 28/28 transitions.
Applied a total of 0 rules in 2 ms. Remains 20 /20 variables (removed 0) and now considering 28/28 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 2 iterations and 66 ms. Remains : 20/24 places, 28/28 transitions.
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {14=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {13=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 30 ms. (steps per millisecond=333 ) properties (out of 4) seen :[4, 12, 8, 200]
Current structural bounds on expressions (after cover walk) : Max Seen:[4, 12, 8, 202] Max Struct:[+inf, +inf, +inf, 204]
// Phase 1: matrix 28 rows 20 cols
[2025-06-07 14:15:31] [INFO ] Computed 1 invariants in 2 ms
Current structural bounds on expressions (after invariants) : Max Seen:[4, 12, 8, 202] Max Struct:[+inf, +inf, +inf, 204]
RANDOM walk for 1000012 steps (2 resets) in 538 ms. (1855 steps per ms)
BEST_FIRST walk for 4000004 steps (8 resets) in 2023 ms. (1976 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[4, 12, 8, 202] Max Struct:[+inf, +inf, +inf, 204]
[2025-06-07 14:15:34] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 14:15:34] [INFO ] [Real]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-07 14:15:34] [INFO ] [Real]Absence check using state equation in 16 ms returned sat
[2025-06-07 14:15:34] [INFO ] State equation strengthened by 8 read => feed constraints.
[2025-06-07 14:15:34] [INFO ] [Real]Added 8 Read/Feed constraints in 4 ms returned sat
[2025-06-07 14:15:34] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 14:15:34] [INFO ] [Nat]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-07 14:15:34] [INFO ] [Nat]Absence check using state equation in 16 ms returned sat
[2025-06-07 14:15:34] [INFO ] [Nat]Added 8 Read/Feed constraints in 4 ms returned sat
[2025-06-07 14:15:34] [INFO ] Computed and/alt/rep : 16/40/16 causal constraints (skipped 0 transitions) in 4 ms.
[2025-06-07 14:15:34] [INFO ] Added : 2 causal constraints over 1 iterations in 15 ms. Result :sat
Minimization took 10 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 14:15:34] [INFO ] [Real]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-07 14:15:34] [INFO ] [Real]Absence check using state equation in 15 ms returned sat
[2025-06-07 14:15:34] [INFO ] [Real]Added 8 Read/Feed constraints in 3 ms returned sat
[2025-06-07 14:15:34] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 14:15:34] [INFO ] [Nat]Absence check using 1 positive place invariants in 2 ms returned sat
[2025-06-07 14:15:34] [INFO ] [Nat]Absence check using state equation in 15 ms returned sat
[2025-06-07 14:15:34] [INFO ] [Nat]Added 8 Read/Feed constraints in 3 ms returned sat
[2025-06-07 14:15:34] [INFO ] Computed and/alt/rep : 16/40/16 causal constraints (skipped 0 transitions) in 4 ms.
[2025-06-07 14:15:34] [INFO ] Added : 3 causal constraints over 1 iterations in 13 ms. Result :sat
Minimization took 11 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 14:15:34] [INFO ] [Real]Absence check using 1 positive place invariants in 2 ms returned sat
[2025-06-07 14:15:34] [INFO ] [Real]Absence check using state equation in 17 ms returned sat
[2025-06-07 14:15:34] [INFO ] [Real]Added 8 Read/Feed constraints in 4 ms returned sat
[2025-06-07 14:15:34] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 14:15:34] [INFO ] [Nat]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-07 14:15:34] [INFO ] [Nat]Absence check using state equation in 12 ms returned sat
[2025-06-07 14:15:34] [INFO ] [Nat]Added 8 Read/Feed constraints in 3 ms returned sat
[2025-06-07 14:15:34] [INFO ] Computed and/alt/rep : 16/40/16 causal constraints (skipped 0 transitions) in 3 ms.
[2025-06-07 14:15:34] [INFO ] Added : 2 causal constraints over 1 iterations in 13 ms. Result :sat
Minimization took 7 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 14:15:34] [INFO ] [Real]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-07 14:15:34] [INFO ] [Real]Absence check using state equation in 14 ms returned sat
[2025-06-07 14:15:34] [INFO ] [Real]Added 8 Read/Feed constraints in 2 ms returned sat
[2025-06-07 14:15:34] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-07 14:15:34] [INFO ] [Nat]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-06-07 14:15:34] [INFO ] [Nat]Absence check using state equation in 11 ms returned sat
[2025-06-07 14:15:34] [INFO ] [Nat]Added 8 Read/Feed constraints in 3 ms returned sat
[2025-06-07 14:15:34] [INFO ] Computed and/alt/rep : 16/40/16 causal constraints (skipped 0 transitions) in 5 ms.
[2025-06-07 14:15:34] [INFO ] Added : 4 causal constraints over 2 iterations in 22 ms. Result :sat
Minimization took 17 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[4, 12, 8, 202] Max Struct:[+inf, +inf, +inf, 204]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[4, 12, 8, 202] Max Struct:[+inf, +inf, +inf, 204]
Support contains 16 out of 20 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 20/20 places, 28/28 transitions.
Applied a total of 0 rules in 2 ms. Remains 20 /20 variables (removed 0) and now considering 28/28 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 2 ms. Remains : 20/20 places, 28/28 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 20/20 places, 28/28 transitions.
Applied a total of 0 rules in 1 ms. Remains 20 /20 variables (removed 0) and now considering 28/28 (removed 0) transitions.
[2025-06-07 14:15:34] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-07 14:15:34] [INFO ] Implicit Places using invariants in 25 ms returned []
[2025-06-07 14:15:34] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-07 14:15:34] [INFO ] State equation strengthened by 8 read => feed constraints.
[2025-06-07 14:15:34] [INFO ] Implicit Places using invariants and state equation in 42 ms returned []
Implicit Place search using SMT with State Equation took 68 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-07 14:15:34] [INFO ] Redundant transitions in 0 ms returned []
Running 16 sub problems to find dead transitions.
[2025-06-07 14:15:34] [INFO ] Invariant cache hit.
[2025-06-07 14:15:34] [INFO ] State equation strengthened by 8 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/12 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 1 (OVERLAPS) 4/16 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/16 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 3 (OVERLAPS) 28/44 variables, 16/17 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/44 variables, 8/25 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/44 variables, 0/25 constraints. Problems are: Problem set: 0 solved, 16 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (OVERLAPS) 4/48 variables, 4/29 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/48 variables, 0/29 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 8 (OVERLAPS) 0/48 variables, 0/29 constraints. Problems are: Problem set: 0 solved, 16 unsolved
No progress, stopping.
After SMT solving in domain Real declared 48/48 variables, and 29 constraints, problems are : Problem set: 0 solved, 16 unsolved in 323 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 20/20 constraints, ReadFeed: 8/8 constraints, PredecessorRefiner: 16/16 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 16 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/12 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 1 (OVERLAPS) 4/16 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/16 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 3 (OVERLAPS) 28/44 variables, 16/17 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/44 variables, 8/25 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/44 variables, 0/25 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 6 (OVERLAPS) 4/48 variables, 4/29 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/48 variables, 16/45 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/48 variables, 0/45 constraints. Problems are: Problem set: 0 solved, 16 unsolved
At refinement iteration 9 (OVERLAPS) 0/48 variables, 0/45 constraints. Problems are: Problem set: 0 solved, 16 unsolved
No progress, stopping.
After SMT solving in domain Int declared 48/48 variables, and 45 constraints, problems are : Problem set: 0 solved, 16 unsolved in 588 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 20/20 constraints, ReadFeed: 8/8 constraints, PredecessorRefiner: 16/16 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 920ms problems are : Problem set: 0 solved, 16 unsolved
Search for dead transitions found 0 dead transitions in 921ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 1001 ms. Remains : 20/20 places, 28/28 transitions.
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {14=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {13=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 47 ms. (steps per millisecond=212 ) properties (out of 4) seen :[4, 12, 8, 200]
Current structural bounds on expressions (after cover walk) : Max Seen:[4, 12, 8, 202] Max Struct:[+inf, +inf, +inf, 204]
RANDOM walk for 40070 steps (8 resets) in 459 ms. (87 steps per ms) remains 5/5 properties
BEST_FIRST walk for 40004 steps (8 resets) in 173 ms. (229 steps per ms) remains 5/5 properties
BEST_FIRST walk for 40004 steps (8 resets) in 130 ms. (305 steps per ms) remains 5/5 properties
BEST_FIRST walk for 40004 steps (8 resets) in 187 ms. (212 steps per ms) remains 5/5 properties
[2025-06-07 14:15:36] [INFO ] Flatten gal took : 36 ms
BEST_FIRST walk for 40004 steps (8 resets) in 163 ms. (243 steps per ms) remains 5/5 properties
[2025-06-07 14:15:36] [INFO ] Flatten gal took : 11 ms
BEST_FIRST walk for 40003 steps (8 resets) in 181 ms. (219 steps per ms) remains 5/5 properties
[2025-06-07 14:15:36] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality10976888407997833083.gal : 12 ms
[2025-06-07 14:15:36] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality11432858164979647557.prop : 3 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/ReachabilityCardinality10976888407997833083.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality11432858164979647557.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 ...330
Loading property file /tmp/ReachabilityCardinality11432858164979647557.prop.
SDD proceeding with computation,5 properties remain. new max is 4
SDD size :1 after 6
SDD proceeding with computation,5 properties remain. new max is 8
SDD size :6 after 36
SDD proceeding with computation,5 properties remain. new max is 16
SDD size :36 after 90
SDD proceeding with computation,5 properties remain. new max is 32
SDD size :90 after 192
SDD proceeding with computation,5 properties remain. new max is 64
SDD size :192 after 30630
SDD proceeding with computation,5 properties remain. new max is 128
SDD size :30630 after 243534
Interrupted probabilistic random walk after 282160 steps, run timeout after 3001 ms. (steps per millisecond=94 ) properties seen :0 out of 5
Probabilistic random walk after 282160 steps, saw 191374 distinct states, run finished after 3009 ms. (steps per millisecond=93 ) properties seen :0
[2025-06-07 14:15:39] [INFO ] Invariant cache hit.
[2025-06-07 14:15:39] [INFO ] State equation strengthened by 8 read => feed constraints.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-07 14:15:39] [INFO ] Deduced a trap composed of 2 places in 63 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-07 14:15:39] [INFO ] Deduced a trap composed of 2 places in 35 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-07 14:15:39] [INFO ] Deduced a trap composed of 2 places in 29 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-07 14:15:39] [INFO ] Deduced a trap composed of 2 places in 30 ms of which 2 ms to minimize.
At refinement iteration 0 (INCLUDED_ONLY) 0/16 variables, 4/4 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/16 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 2 (OVERLAPS) 4/20 variables, 1/5 constraints. Problems are: Problem set: 0 solved, 5 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-07 14:15:39] [INFO ] Deduced a trap composed of 4 places in 33 ms of which 3 ms to minimize.
Problem MAX3 is UNSAT
At refinement iteration 3 (INCLUDED_ONLY) 0/20 variables, 1/6 constraints. Problems are: Problem set: 1 solved, 4 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/20 variables, 0/6 constraints. Problems are: Problem set: 1 solved, 4 unsolved
At refinement iteration 5 (OVERLAPS) 28/48 variables, 20/26 constraints. Problems are: Problem set: 1 solved, 4 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/48 variables, 8/34 constraints. Problems are: Problem set: 1 solved, 4 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/48 variables, 0/34 constraints. Problems are: Problem set: 1 solved, 4 unsolved
At refinement iteration 8 (OVERLAPS) 0/48 variables, 0/34 constraints. Problems are: Problem set: 1 solved, 4 unsolved
No progress, stopping.
After SMT solving in domain Real declared 48/48 variables, and 34 constraints, problems are : Problem set: 1 solved, 4 unsolved in 411 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 20/20 constraints, ReadFeed: 8/8 constraints, PredecessorRefiner: 5/5 constraints, Known Traps: 5/5 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 1 solved, 4 unsolved
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/16 variables, 4/4 constraints. Problems are: Problem set: 1 solved, 4 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/16 variables, 0/4 constraints. Problems are: Problem set: 1 solved, 4 unsolved
At refinement iteration 2 (OVERLAPS) 4/20 variables, 1/5 constraints. Problems are: Problem set: 1 solved, 4 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/20 variables, 1/6 constraints. Problems are: Problem set: 1 solved, 4 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/20 variables, 0/6 constraints. Problems are: Problem set: 1 solved, 4 unsolved
At refinement iteration 5 (OVERLAPS) 28/48 variables, 20/26 constraints. Problems are: Problem set: 1 solved, 4 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/48 variables, 8/34 constraints. Problems are: Problem set: 1 solved, 4 unsolved
Problem MIN3 is UNSAT
At refinement iteration 7 (INCLUDED_ONLY) 0/48 variables, 4/38 constraints. Problems are: Problem set: 2 solved, 3 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/48 variables, 0/38 constraints. Problems are: Problem set: 2 solved, 3 unsolved
At refinement iteration 9 (OVERLAPS) 0/48 variables, 0/38 constraints. Problems are: Problem set: 2 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Int declared 48/48 variables, and 38 constraints, problems are : Problem set: 2 solved, 3 unsolved in 157 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 20/20 constraints, ReadFeed: 8/8 constraints, PredecessorRefiner: 4/5 constraints, Known Traps: 5/5 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 585ms problems are : Problem set: 2 solved, 3 unsolved
Fused 3 Parikh solutions to 2 different solutions.
Parikh walk visited 0 properties in 56 ms.
Support contains 12 out of 20 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 20/20 places, 28/28 transitions.
Graph (complete) has 56 edges and 20 vertex of which 12 are kept as prefixes of interest. Removing 8 places using SCC suffix rule.1 ms
Discarding 8 places :
Also discarding 8 output transitions
Drop transitions (Output transitions of discarded places.) removed 8 transitions
Drop transitions (Empty/Sink Transition effects.) removed 4 transitions
Reduce isomorphic transitions removed 4 transitions.
Iterating post reduction 0 with 4 rules applied. Total rules applied 5 place count 12 transition count 16
Applied a total of 5 rules in 9 ms. Remains 12 /20 variables (removed 8) and now considering 16/28 (removed 12) transitions.
Running 12 sub problems to find dead transitions.
// Phase 1: matrix 16 rows 12 cols
[2025-06-07 14:15:40] [INFO ] Computed 0 invariants in 0 ms
[2025-06-07 14:15:40] [INFO ] State equation strengthened by 4 read => feed constraints.
Starting Z3 with timeout 20.0 s and query timeout 2000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/8 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 12 unsolved
At refinement iteration 1 (OVERLAPS) 16/24 variables, 8/8 constraints. Problems are: Problem set: 0 solved, 12 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/24 variables, 4/12 constraints. Problems are: Problem set: 0 solved, 12 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/24 variables, 0/12 constraints. Problems are: Problem set: 0 solved, 12 unsolved
At refinement iteration 4 (OVERLAPS) 4/28 variables, 4/16 constraints. Problems are: Problem set: 0 solved, 12 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/28 variables, 0/16 constraints. Problems are: Problem set: 0 solved, 12 unsolved
At refinement iteration 6 (OVERLAPS) 0/28 variables, 0/16 constraints. Problems are: Problem set: 0 solved, 12 unsolved
No progress, stopping.
After SMT solving in domain Real declared 28/28 variables, and 16 constraints, problems are : Problem set: 0 solved, 12 unsolved in 155 ms.
Refiners :[State Equation: 12/12 constraints, ReadFeed: 4/4 constraints, PredecessorRefiner: 12/12 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 12 unsolved
Starting Z3 with timeout 20.0 s and query timeout 2000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/8 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 12 unsolved
At refinement iteration 1 (OVERLAPS) 16/24 variables, 8/8 constraints. Problems are: Problem set: 0 solved, 12 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/24 variables, 4/12 constraints. Problems are: Problem set: 0 solved, 12 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/24 variables, 0/12 constraints. Problems are: Problem set: 0 solved, 12 unsolved
At refinement iteration 4 (OVERLAPS) 4/28 variables, 4/16 constraints. Problems are: Problem set: 0 solved, 12 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/28 variables, 12/28 constraints. Problems are: Problem set: 0 solved, 12 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/28 variables, 0/28 constraints. Problems are: Problem set: 0 solved, 12 unsolved
At refinement iteration 7 (OVERLAPS) 0/28 variables, 0/28 constraints. Problems are: Problem set: 0 solved, 12 unsolved
No progress, stopping.
After SMT solving in domain Int declared 28/28 variables, and 28 constraints, problems are : Problem set: 0 solved, 12 unsolved in 260 ms.
Refiners :[State Equation: 12/12 constraints, ReadFeed: 4/4 constraints, PredecessorRefiner: 12/12 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 421ms problems are : Problem set: 0 solved, 12 unsolved
Search for dead transitions found 0 dead transitions in 422ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 432 ms. Remains : 12/20 places, 16/28 transitions.
RANDOM walk for 40002 steps (8 resets) in 133 ms. (298 steps per ms) remains 3/3 properties
BEST_FIRST walk for 40004 steps (8 resets) in 87 ms. (454 steps per ms) remains 3/3 properties
BEST_FIRST walk for 40004 steps (8 resets) in 93 ms. (425 steps per ms) remains 3/3 properties
BEST_FIRST walk for 40002 steps (8 resets) in 103 ms. (384 steps per ms) remains 3/3 properties
Probably explored full state space saw : 1296 states, properties seen :0
Probabilistic random walk after 8208 steps, saw 1296 distinct states, run finished after 26 ms. (steps per millisecond=315 ) properties seen :0
Explored full state space saw : 1296 states, properties seen :0
Exhaustive walk after 8208 steps, saw 1296 distinct states, run finished after 22 ms. (steps per millisecond=373 ) properties seen :0
ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
FORMULA Murphy-COL-D3N050-UpperBounds-13 202 TECHNIQUES REACHABILITY_MIN
FORMULA Murphy-COL-D3N050-UpperBounds-14 202 TECHNIQUES REACHABILITY_MIN
FORMULA Murphy-COL-D3N050-UpperBounds-09 202 TECHNIQUES REACHABILITY_MIN
FORMULA Murphy-COL-D3N050-UpperBounds-10 8 TECHNIQUES REACHABILITY_MIN
FORMULA Murphy-COL-D3N050-UpperBounds-05 8 TECHNIQUES REACHABILITY_MIN
FORMULA Murphy-COL-D3N050-UpperBounds-02 12 TECHNIQUES REACHABILITY_MIN
FORMULA Murphy-COL-D3N050-UpperBounds-03 12 TECHNIQUES REACHABILITY_MIN
FORMULA Murphy-COL-D3N050-UpperBounds-01 12 TECHNIQUES REACHABILITY_MIN
FORMULA Murphy-COL-D3N050-UpperBounds-06 4 TECHNIQUES REACHABILITY_MIN
FORMULA Murphy-COL-D3N050-UpperBounds-11 4 TECHNIQUES REACHABILITY_MIN
FORMULA Murphy-COL-D3N050-UpperBounds-00 4 TECHNIQUES REACHABILITY_MIN
Current structural bounds on expressions (After reachability solving 4 queries.) : Max Seen:[] Max Struct:[]
All properties solved without resorting to model-checking.
Total runtime 18155 ms.

BK_STOP 1749305740857

--------------------
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
++ perl -pe 's/.*\.//g'
++ sed s/.jar//
++ 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="Murphy-COL-D3N050"
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 Murphy-COL-D3N050, 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 r128-smll-174876524800549"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/Murphy-COL-D3N050.tgz
mv Murphy-COL-D3N050 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 ;