Execution Chart

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

Trace from the execution

Formatting '/data/fkordon/mcc2025-input.r083-tall-174860079700066.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 gold2024
Input is DoubleLock-PT-p1s1, examination is UpperBounds
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r083-tall-174860079700066
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 520K
-rw-r--r-- 1 mcc users 6.2K 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 5.2K 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 3.8K May 29 14:47 LTLCardinality.txt
-rw-r--r-- 1 mcc users 28K 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 19K May 29 14:47 LTLFireability.xml
-rw-r--r-- 1 mcc users 10K May 29 14:47 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 106K 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 84K 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 4.0K May 29 14:47 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 May 29 14:32 equiv_col
-rw-r--r-- 1 mcc users 5 May 29 14:32 instance
-rw-r--r-- 1 mcc users 6 May 29 14:32 iscolored
-rw-r--r-- 1 mcc users 93K 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 DoubleLock-PT-p1s1-UpperBounds-00
FORMULA_NAME DoubleLock-PT-p1s1-UpperBounds-01
FORMULA_NAME DoubleLock-PT-p1s1-UpperBounds-02
FORMULA_NAME DoubleLock-PT-p1s1-UpperBounds-03
FORMULA_NAME DoubleLock-PT-p1s1-UpperBounds-04
FORMULA_NAME DoubleLock-PT-p1s1-UpperBounds-05
FORMULA_NAME DoubleLock-PT-p1s1-UpperBounds-06
FORMULA_NAME DoubleLock-PT-p1s1-UpperBounds-07
FORMULA_NAME DoubleLock-PT-p1s1-UpperBounds-08
FORMULA_NAME DoubleLock-PT-p1s1-UpperBounds-09
FORMULA_NAME DoubleLock-PT-p1s1-UpperBounds-10
FORMULA_NAME DoubleLock-PT-p1s1-UpperBounds-11
FORMULA_NAME DoubleLock-PT-p1s1-UpperBounds-12
FORMULA_NAME DoubleLock-PT-p1s1-UpperBounds-13
FORMULA_NAME DoubleLock-PT-p1s1-UpperBounds-14
FORMULA_NAME DoubleLock-PT-p1s1-UpperBounds-15

=== Now, execution of the tool begins

BK_START 1748731700222

Invoking MCC driver with
BK_TOOL=gold2024
BK_EXAMINATION=UpperBounds
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=DoubleLock-PT-p1s1
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
UpperBounds PT
Running Version 202405141337
[2025-05-31 22:48:21] [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]
[2025-05-31 22:48:21] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2025-05-31 22:48:21] [INFO ] Load time of PNML (sax parser for PT used): 68 ms
[2025-05-31 22:48:21] [INFO ] Transformed 64 places.
[2025-05-31 22:48:21] [INFO ] Transformed 204 transitions.
[2025-05-31 22:48:21] [INFO ] Parsed PT model containing 64 places and 204 transitions and 828 arcs in 178 ms.
Parsed 16 properties from file /home/mcc/execution/UpperBounds.xml in 6 ms.
Reduction of identical properties reduced properties to check from 16 to 15
Deduced a syphon composed of 8 places in 1 ms
Reduce places removed 8 places and 8 transitions.
FORMULA DoubleLock-PT-p1s1-UpperBounds-00 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA DoubleLock-PT-p1s1-UpperBounds-04 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
Current structural bounds on expressions (Initially) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (Before main loop) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2025-05-31 22:48:21] [INFO ] Flow matrix only has 148 transitions (discarded 48 similar events)
// Phase 1: matrix 148 rows 56 cols
[2025-05-31 22:48:21] [INFO ] Computed 4 invariants in 11 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[+inf, 1, +inf, 10, 1, 1, +inf, 1, 10, +inf, 1, 1, +inf]
RANDOM walk for 10000 steps (78 resets) in 39 ms. (250 steps per ms)
FORMULA DoubleLock-PT-p1s1-UpperBounds-13 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA DoubleLock-PT-p1s1-UpperBounds-12 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA DoubleLock-PT-p1s1-UpperBounds-10 10 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA DoubleLock-PT-p1s1-UpperBounds-09 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA DoubleLock-PT-p1s1-UpperBounds-07 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA DoubleLock-PT-p1s1-UpperBounds-06 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA DoubleLock-PT-p1s1-UpperBounds-02 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA DoubleLock-PT-p1s1-UpperBounds-05 10 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 50004 steps (54 resets) in 59 ms. (833 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[18, 11, 10, 18, 9] Max Struct:[+inf, +inf, +inf, +inf, +inf]
[2025-05-31 22:48:21] [INFO ] Flow matrix only has 148 transitions (discarded 48 similar events)
[2025-05-31 22:48:21] [INFO ] Invariant cache hit.
[2025-05-31 22:48:21] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-05-31 22:48:21] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 2 ms returned sat
[2025-05-31 22:48:22] [INFO ] [Real]Absence check using state equation in 54 ms returned sat
[2025-05-31 22:48:22] [INFO ] Solution in real domain found non-integer solution.
[2025-05-31 22:48:22] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-05-31 22:48:22] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 0 ms returned sat
[2025-05-31 22:48:22] [INFO ] [Nat]Absence check using state equation in 33 ms returned sat
[2025-05-31 22:48:22] [INFO ] State equation strengthened by 23 read => feed constraints.
[2025-05-31 22:48:22] [INFO ] [Nat]Added 23 Read/Feed constraints in 4 ms returned sat
[2025-05-31 22:48:22] [INFO ] Deduced a trap composed of 12 places in 69 ms of which 5 ms to minimize.
[2025-05-31 22:48:22] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 86 ms
[2025-05-31 22:48:22] [INFO ] Computed and/alt/rep : 63/438/63 causal constraints (skipped 83 transitions) in 17 ms.
[2025-05-31 22:48:22] [INFO ] Added : 14 causal constraints over 5 iterations in 74 ms. Result :sat
Minimization took 28 ms.
[2025-05-31 22:48:22] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-05-31 22:48:22] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2025-05-31 22:48:22] [INFO ] [Real]Absence check using state equation in 30 ms returned sat
[2025-05-31 22:48:22] [INFO ] Solution in real domain found non-integer solution.
[2025-05-31 22:48:22] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-05-31 22:48:22] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 2 ms returned sat
[2025-05-31 22:48:22] [INFO ] [Nat]Absence check using state equation in 40 ms returned sat
[2025-05-31 22:48:22] [INFO ] [Nat]Added 23 Read/Feed constraints in 4 ms returned sat
[2025-05-31 22:48:22] [INFO ] Computed and/alt/rep : 63/438/63 causal constraints (skipped 83 transitions) in 21 ms.
[2025-05-31 22:48:22] [INFO ] Added : 33 causal constraints over 7 iterations in 118 ms. Result :sat
Minimization took 37 ms.
[2025-05-31 22:48:22] [INFO ] [Real]Absence check using 3 positive place invariants in 1 ms returned sat
[2025-05-31 22:48:22] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 0 ms returned sat
[2025-05-31 22:48:22] [INFO ] [Real]Absence check using state equation in 26 ms returned sat
[2025-05-31 22:48:22] [INFO ] [Real]Added 23 Read/Feed constraints in 5 ms returned sat
[2025-05-31 22:48:22] [INFO ] Solution in real domain found non-integer solution.
[2025-05-31 22:48:22] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-05-31 22:48:22] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 0 ms returned sat
[2025-05-31 22:48:22] [INFO ] [Nat]Absence check using state equation in 28 ms returned sat
[2025-05-31 22:48:22] [INFO ] [Nat]Added 23 Read/Feed constraints in 5 ms returned sat
[2025-05-31 22:48:22] [INFO ] Deduced a trap composed of 16 places in 49 ms of which 2 ms to minimize.
[2025-05-31 22:48:22] [INFO ] Deduced a trap composed of 29 places in 43 ms of which 0 ms to minimize.
[2025-05-31 22:48:22] [INFO ] Deduced a trap composed of 12 places in 43 ms of which 0 ms to minimize.
[2025-05-31 22:48:23] [INFO ] Deduced a trap composed of 17 places in 41 ms of which 1 ms to minimize.
[2025-05-31 22:48:23] [INFO ] Deduced a trap composed of 12 places in 41 ms of which 0 ms to minimize.
[2025-05-31 22:48:23] [INFO ] Trap strengthening (SAT) tested/added 6/5 trap constraints in 243 ms
[2025-05-31 22:48:23] [INFO ] Computed and/alt/rep : 63/438/63 causal constraints (skipped 83 transitions) in 16 ms.
[2025-05-31 22:48:23] [INFO ] Added : 25 causal constraints over 6 iterations in 97 ms. Result :sat
Minimization took 34 ms.
[2025-05-31 22:48:23] [INFO ] [Real]Absence check using 3 positive place invariants in 1 ms returned sat
[2025-05-31 22:48:23] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2025-05-31 22:48:23] [INFO ] [Real]Absence check using state equation in 29 ms returned sat
[2025-05-31 22:48:23] [INFO ] [Real]Added 23 Read/Feed constraints in 3 ms returned sat
[2025-05-31 22:48:23] [INFO ] Solution in real domain found non-integer solution.
[2025-05-31 22:48:23] [INFO ] [Nat]Absence check using 3 positive place invariants in 1 ms returned sat
[2025-05-31 22:48:23] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 0 ms returned sat
[2025-05-31 22:48:23] [INFO ] [Nat]Absence check using state equation in 23 ms returned sat
[2025-05-31 22:48:23] [INFO ] [Nat]Added 23 Read/Feed constraints in 3 ms returned sat
[2025-05-31 22:48:23] [INFO ] Deduced a trap composed of 12 places in 46 ms of which 1 ms to minimize.
[2025-05-31 22:48:23] [INFO ] Deduced a trap composed of 12 places in 44 ms of which 1 ms to minimize.
[2025-05-31 22:48:23] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 105 ms
[2025-05-31 22:48:23] [INFO ] Computed and/alt/rep : 63/438/63 causal constraints (skipped 83 transitions) in 16 ms.
[2025-05-31 22:48:23] [INFO ] Added : 48 causal constraints over 11 iterations in 169 ms. Result :sat
Minimization took 40 ms.
[2025-05-31 22:48:23] [INFO ] [Real]Absence check using 3 positive place invariants in 1 ms returned sat
[2025-05-31 22:48:23] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 0 ms returned sat
[2025-05-31 22:48:23] [INFO ] [Real]Absence check using state equation in 25 ms returned sat
[2025-05-31 22:48:23] [INFO ] [Real]Added 23 Read/Feed constraints in 4 ms returned sat
[2025-05-31 22:48:23] [INFO ] Solution in real domain found non-integer solution.
[2025-05-31 22:48:23] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-05-31 22:48:23] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 0 ms returned sat
[2025-05-31 22:48:23] [INFO ] [Nat]Absence check using state equation in 23 ms returned sat
[2025-05-31 22:48:23] [INFO ] [Nat]Added 23 Read/Feed constraints in 3 ms returned sat
[2025-05-31 22:48:23] [INFO ] Deduced a trap composed of 12 places in 43 ms of which 1 ms to minimize.
[2025-05-31 22:48:23] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 57 ms
[2025-05-31 22:48:23] [INFO ] Computed and/alt/rep : 63/438/63 causal constraints (skipped 83 transitions) in 17 ms.
[2025-05-31 22:48:23] [INFO ] Deduced a trap composed of 12 places in 47 ms of which 1 ms to minimize.
[2025-05-31 22:48:23] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 60 ms
[2025-05-31 22:48:23] [INFO ] Added : 20 causal constraints over 4 iterations in 126 ms. Result :sat
Minimization took 39 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[18, 11, 10, 18, 9] Max Struct:[+inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[512, 11, 23, 23, 9] Max Struct:[+inf, +inf, +inf, +inf, +inf]
Support contains 5 out of 56 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 56/56 places, 196/196 transitions.
Graph (complete) has 357 edges and 56 vertex of which 53 are kept as prefixes of interest. Removing 3 places using SCC suffix rule.2 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 53 transition count 194
Applied a total of 3 rules in 30 ms. Remains 53 /56 variables (removed 3) and now considering 194/196 (removed 2) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 44 ms. Remains : 53/56 places, 194/196 transitions.
[2025-05-31 22:48:24] [INFO ] Flow matrix only has 146 transitions (discarded 48 similar events)
Found an invariant !
This invariant on transitions {12=1, 25=1, 83=1, 84=1, 134=2}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {12=1, 25=1, 92=1, 93=1, 143=2}
Produces a positive solution
Incomplete random walk after 10000 steps, including 63 resets, run finished after 42 ms. (steps per millisecond=238 ) properties (out of 5) seen :[7, 6, 7, 8, 4]
Current structural bounds on expressions (after cover walk) : Max Seen:[512, 11, 23, 23, 9] Max Struct:[+inf, +inf, +inf, +inf, +inf]
[2025-05-31 22:48:24] [INFO ] Flow matrix only has 146 transitions (discarded 48 similar events)
// Phase 1: matrix 146 rows 53 cols
[2025-05-31 22:48:24] [INFO ] Computed 2 invariants in 1 ms
Current structural bounds on expressions (after invariants) : Max Seen:[512, 11, 23, 23, 9] Max Struct:[+inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (5095 resets) in 1258 ms. (794 steps per ms)
BEST_FIRST walk for 5000005 steps (3179 resets) in 2138 ms. (2337 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[512, 46, 23, 2122, 43] Max Struct:[+inf, +inf, +inf, +inf, +inf]
[2025-05-31 22:48:27] [INFO ] Flow matrix only has 146 transitions (discarded 48 similar events)
[2025-05-31 22:48:27] [INFO ] Invariant cache hit.
[2025-05-31 22:48:27] [INFO ] [Real]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-05-31 22:48:27] [INFO ] [Real]Absence check using 1 positive and 1 generalized place invariants in 3 ms returned sat
[2025-05-31 22:48:27] [INFO ] [Real]Absence check using state equation in 24 ms returned sat
[2025-05-31 22:48:27] [INFO ] State equation strengthened by 23 read => feed constraints.
[2025-05-31 22:48:27] [INFO ] [Real]Added 23 Read/Feed constraints in 5 ms returned sat
[2025-05-31 22:48:27] [INFO ] Solution in real domain found non-integer solution.
[2025-05-31 22:48:27] [INFO ] [Nat]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-05-31 22:48:27] [INFO ] [Nat]Absence check using 1 positive and 1 generalized place invariants in 0 ms returned sat
[2025-05-31 22:48:27] [INFO ] [Nat]Absence check using state equation in 21 ms returned sat
[2025-05-31 22:48:27] [INFO ] [Nat]Added 23 Read/Feed constraints in 4 ms returned sat
[2025-05-31 22:48:27] [INFO ] Computed and/alt/rep : 62/434/62 causal constraints (skipped 82 transitions) in 13 ms.
[2025-05-31 22:48:28] [INFO ] Added : 8 causal constraints over 3 iterations in 51 ms. Result :sat
Minimization took 24 ms.
[2025-05-31 22:48:28] [INFO ] [Real]Absence check using 1 positive place invariants in 0 ms returned sat
[2025-05-31 22:48:28] [INFO ] [Real]Absence check using 1 positive and 1 generalized place invariants in 1 ms returned sat
[2025-05-31 22:48:28] [INFO ] [Real]Absence check using state equation in 36 ms returned sat
[2025-05-31 22:48:28] [INFO ] [Real]Added 23 Read/Feed constraints in 4 ms returned sat
[2025-05-31 22:48:28] [INFO ] Solution in real domain found non-integer solution.
[2025-05-31 22:48:28] [INFO ] [Nat]Absence check using 1 positive place invariants in 0 ms returned sat
[2025-05-31 22:48:28] [INFO ] [Nat]Absence check using 1 positive and 1 generalized place invariants in 1 ms returned sat
[2025-05-31 22:48:28] [INFO ] [Nat]Absence check using state equation in 35 ms returned sat
[2025-05-31 22:48:28] [INFO ] [Nat]Added 23 Read/Feed constraints in 6 ms returned sat
[2025-05-31 22:48:28] [INFO ] Computed and/alt/rep : 62/434/62 causal constraints (skipped 82 transitions) in 14 ms.
[2025-05-31 22:48:28] [INFO ] Added : 17 causal constraints over 4 iterations in 55 ms. Result :sat
Minimization took 29 ms.
[2025-05-31 22:48:28] [INFO ] [Real]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-05-31 22:48:28] [INFO ] [Real]Absence check using 1 positive and 1 generalized place invariants in 1 ms returned sat
[2025-05-31 22:48:28] [INFO ] [Real]Absence check using state equation in 22 ms returned sat
[2025-05-31 22:48:28] [INFO ] Solution in real domain found non-integer solution.
[2025-05-31 22:48:28] [INFO ] [Nat]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-05-31 22:48:28] [INFO ] [Nat]Absence check using 1 positive and 1 generalized place invariants in 0 ms returned sat
[2025-05-31 22:48:28] [INFO ] [Nat]Absence check using state equation in 26 ms returned sat
[2025-05-31 22:48:28] [INFO ] [Nat]Added 23 Read/Feed constraints in 5 ms returned sat
[2025-05-31 22:48:28] [INFO ] Computed and/alt/rep : 62/434/62 causal constraints (skipped 82 transitions) in 13 ms.
[2025-05-31 22:48:28] [INFO ] Added : 21 causal constraints over 6 iterations in 97 ms. Result :sat
Minimization took 31 ms.
[2025-05-31 22:48:28] [INFO ] [Real]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-05-31 22:48:28] [INFO ] [Real]Absence check using 1 positive and 1 generalized place invariants in 1 ms returned sat
[2025-05-31 22:48:28] [INFO ] [Real]Absence check using state equation in 26 ms returned sat
[2025-05-31 22:48:28] [INFO ] [Real]Added 23 Read/Feed constraints in 4 ms returned sat
[2025-05-31 22:48:28] [INFO ] Solution in real domain found non-integer solution.
[2025-05-31 22:48:28] [INFO ] [Nat]Absence check using 1 positive place invariants in 0 ms returned sat
[2025-05-31 22:48:28] [INFO ] [Nat]Absence check using 1 positive and 1 generalized place invariants in 0 ms returned sat
[2025-05-31 22:48:28] [INFO ] [Nat]Absence check using state equation in 31 ms returned sat
[2025-05-31 22:48:28] [INFO ] [Nat]Added 23 Read/Feed constraints in 3 ms returned sat
[2025-05-31 22:48:28] [INFO ] Computed and/alt/rep : 62/434/62 causal constraints (skipped 82 transitions) in 12 ms.
[2025-05-31 22:48:28] [INFO ] Added : 22 causal constraints over 5 iterations in 68 ms. Result :sat
Minimization took 28 ms.
[2025-05-31 22:48:28] [INFO ] [Real]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-05-31 22:48:28] [INFO ] [Real]Absence check using 1 positive and 1 generalized place invariants in 1 ms returned sat
[2025-05-31 22:48:28] [INFO ] [Real]Absence check using state equation in 22 ms returned sat
[2025-05-31 22:48:28] [INFO ] Solution in real domain found non-integer solution.
[2025-05-31 22:48:28] [INFO ] [Nat]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-05-31 22:48:28] [INFO ] [Nat]Absence check using 1 positive and 1 generalized place invariants in 0 ms returned sat
[2025-05-31 22:48:28] [INFO ] [Nat]Absence check using state equation in 27 ms returned sat
[2025-05-31 22:48:28] [INFO ] [Nat]Added 23 Read/Feed constraints in 3 ms returned sat
[2025-05-31 22:48:28] [INFO ] Computed and/alt/rep : 62/434/62 causal constraints (skipped 82 transitions) in 13 ms.
[2025-05-31 22:48:28] [INFO ] Added : 14 causal constraints over 3 iterations in 66 ms. Result :sat
Minimization took 28 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[512, 46, 23, 2122, 43] Max Struct:[+inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[49681, 46, 23, 2122, 43] Max Struct:[+inf, +inf, +inf, +inf, +inf]
Support contains 5 out of 53 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 53/53 places, 194/194 transitions.
Applied a total of 0 rules in 7 ms. Remains 53 /53 variables (removed 0) and now considering 194/194 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 7 ms. Remains : 53/53 places, 194/194 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 53/53 places, 194/194 transitions.
Applied a total of 0 rules in 6 ms. Remains 53 /53 variables (removed 0) and now considering 194/194 (removed 0) transitions.
[2025-05-31 22:48:29] [INFO ] Flow matrix only has 146 transitions (discarded 48 similar events)
[2025-05-31 22:48:29] [INFO ] Invariant cache hit.
[2025-05-31 22:48:29] [INFO ] Implicit Places using invariants in 48 ms returned []
[2025-05-31 22:48:29] [INFO ] Flow matrix only has 146 transitions (discarded 48 similar events)
[2025-05-31 22:48:29] [INFO ] Invariant cache hit.
[2025-05-31 22:48:29] [INFO ] State equation strengthened by 23 read => feed constraints.
[2025-05-31 22:48:29] [INFO ] Implicit Places using invariants and state equation in 108 ms returned []
Implicit Place search using SMT with State Equation took 157 ms to find 0 implicit places.
[2025-05-31 22:48:29] [INFO ] Redundant transitions in 6 ms returned []
Running 192 sub problems to find dead transitions.
[2025-05-31 22:48:29] [INFO ] Flow matrix only has 146 transitions (discarded 48 similar events)
[2025-05-31 22:48:29] [INFO ] Invariant cache hit.
[2025-05-31 22:48:29] [INFO ] State equation strengthened by 23 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/52 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 192 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/52 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 192 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/52 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 192 unsolved
At refinement iteration 3 (OVERLAPS) 146/198 variables, 52/54 constraints. Problems are: Problem set: 0 solved, 192 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/198 variables, 23/77 constraints. Problems are: Problem set: 0 solved, 192 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/198 variables, 0/77 constraints. Problems are: Problem set: 0 solved, 192 unsolved
At refinement iteration 6 (OVERLAPS) 1/199 variables, 1/78 constraints. Problems are: Problem set: 0 solved, 192 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/199 variables, 0/78 constraints. Problems are: Problem set: 0 solved, 192 unsolved
At refinement iteration 8 (OVERLAPS) 0/199 variables, 0/78 constraints. Problems are: Problem set: 0 solved, 192 unsolved
No progress, stopping.
After SMT solving in domain Real declared 199/199 variables, and 78 constraints, problems are : Problem set: 0 solved, 192 unsolved in 3856 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 53/53 constraints, ReadFeed: 23/23 constraints, PredecessorRefiner: 192/192 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 192 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/52 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 192 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/52 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 192 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/52 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 192 unsolved
At refinement iteration 3 (OVERLAPS) 146/198 variables, 52/54 constraints. Problems are: Problem set: 0 solved, 192 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/198 variables, 23/77 constraints. Problems are: Problem set: 0 solved, 192 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/198 variables, 12/89 constraints. Problems are: Problem set: 0 solved, 192 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/198 variables, 0/89 constraints. Problems are: Problem set: 0 solved, 192 unsolved
At refinement iteration 7 (OVERLAPS) 1/199 variables, 1/90 constraints. Problems are: Problem set: 0 solved, 192 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/199 variables, 180/270 constraints. Problems are: Problem set: 0 solved, 192 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/199 variables, 0/270 constraints. Problems are: Problem set: 0 solved, 192 unsolved
At refinement iteration 10 (OVERLAPS) 0/199 variables, 0/270 constraints. Problems are: Problem set: 0 solved, 192 unsolved
No progress, stopping.
After SMT solving in domain Int declared 199/199 variables, and 270 constraints, problems are : Problem set: 0 solved, 192 unsolved in 5288 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 53/53 constraints, ReadFeed: 23/23 constraints, PredecessorRefiner: 192/192 constraints, Known Traps: 0/0 constraints]
After SMT, in 9316ms problems are : Problem set: 0 solved, 192 unsolved
Search for dead transitions found 0 dead transitions in 9325ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 9510 ms. Remains : 53/53 places, 194/194 transitions.
[2025-05-31 22:48:38] [INFO ] Flow matrix only has 146 transitions (discarded 48 similar events)
Found an invariant !
This invariant on transitions {12=1, 25=1, 83=1, 84=1, 134=2}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {12=1, 25=1, 92=1, 93=1, 143=2}
Produces a positive solution
Incomplete random walk after 10000 steps, including 65 resets, run finished after 80 ms. (steps per millisecond=125 ) properties (out of 5) seen :[6, 4, 8, 9, 3]
Current structural bounds on expressions (after cover walk) : Max Seen:[49681, 46, 23, 2122, 43] Max Struct:[+inf, +inf, +inf, +inf, +inf]
[2025-05-31 22:48:39] [INFO ] Flow matrix only has 146 transitions (discarded 48 similar events)
[2025-05-31 22:48:39] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[49681, 46, 23, 2122, 43] Max Struct:[+inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (5102 resets) in 1234 ms. (809 steps per ms)
BEST_FIRST walk for 5000005 steps (3155 resets) in 2123 ms. (2354 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[49681, 46, 23, 2128, 43] Max Struct:[+inf, +inf, +inf, +inf, +inf]
[2025-05-31 22:48:42] [INFO ] Flow matrix only has 146 transitions (discarded 48 similar events)
[2025-05-31 22:48:42] [INFO ] Invariant cache hit.
[2025-05-31 22:48:42] [INFO ] [Real]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-05-31 22:48:42] [INFO ] [Real]Absence check using 1 positive and 1 generalized place invariants in 1 ms returned sat
[2025-05-31 22:48:42] [INFO ] [Real]Absence check using state equation in 24 ms returned sat
[2025-05-31 22:48:42] [INFO ] Solution in real domain found non-integer solution.
[2025-05-31 22:48:42] [INFO ] [Nat]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-05-31 22:48:42] [INFO ] [Nat]Absence check using 1 positive and 1 generalized place invariants in 0 ms returned sat
[2025-05-31 22:48:42] [INFO ] [Nat]Absence check using state equation in 31 ms returned sat
[2025-05-31 22:48:42] [INFO ] State equation strengthened by 23 read => feed constraints.
[2025-05-31 22:48:42] [INFO ] [Nat]Added 23 Read/Feed constraints in 4 ms returned sat
[2025-05-31 22:48:42] [INFO ] Computed and/alt/rep : 62/434/62 causal constraints (skipped 82 transitions) in 9 ms.
[2025-05-31 22:48:42] [INFO ] Added : 8 causal constraints over 2 iterations in 33 ms. Result :sat
Minimization took 27 ms.
[2025-05-31 22:48:42] [INFO ] [Real]Absence check using 1 positive place invariants in 0 ms returned sat
[2025-05-31 22:48:42] [INFO ] [Real]Absence check using 1 positive and 1 generalized place invariants in 0 ms returned sat
[2025-05-31 22:48:42] [INFO ] [Real]Absence check using state equation in 21 ms returned sat
[2025-05-31 22:48:42] [INFO ] [Real]Added 23 Read/Feed constraints in 4 ms returned sat
[2025-05-31 22:48:42] [INFO ] Solution in real domain found non-integer solution.
[2025-05-31 22:48:42] [INFO ] [Nat]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-05-31 22:48:42] [INFO ] [Nat]Absence check using 1 positive and 1 generalized place invariants in 3 ms returned sat
[2025-05-31 22:48:42] [INFO ] [Nat]Absence check using state equation in 22 ms returned sat
[2025-05-31 22:48:42] [INFO ] [Nat]Added 23 Read/Feed constraints in 3 ms returned sat
[2025-05-31 22:48:42] [INFO ] Computed and/alt/rep : 62/434/62 causal constraints (skipped 82 transitions) in 8 ms.
[2025-05-31 22:48:42] [INFO ] Added : 17 causal constraints over 4 iterations in 53 ms. Result :sat
Minimization took 29 ms.
[2025-05-31 22:48:42] [INFO ] [Real]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-05-31 22:48:42] [INFO ] [Real]Absence check using 1 positive and 1 generalized place invariants in 1 ms returned sat
[2025-05-31 22:48:42] [INFO ] [Real]Absence check using state equation in 23 ms returned sat
[2025-05-31 22:48:42] [INFO ] Solution in real domain found non-integer solution.
[2025-05-31 22:48:42] [INFO ] [Nat]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-05-31 22:48:42] [INFO ] [Nat]Absence check using 1 positive and 1 generalized place invariants in 0 ms returned sat
[2025-05-31 22:48:42] [INFO ] [Nat]Absence check using state equation in 23 ms returned sat
[2025-05-31 22:48:42] [INFO ] [Nat]Added 23 Read/Feed constraints in 4 ms returned sat
[2025-05-31 22:48:42] [INFO ] Computed and/alt/rep : 62/434/62 causal constraints (skipped 82 transitions) in 9 ms.
[2025-05-31 22:48:42] [INFO ] Added : 21 causal constraints over 6 iterations in 67 ms. Result :sat
Minimization took 29 ms.
[2025-05-31 22:48:43] [INFO ] [Real]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-05-31 22:48:43] [INFO ] [Real]Absence check using 1 positive and 1 generalized place invariants in 0 ms returned sat
[2025-05-31 22:48:43] [INFO ] [Real]Absence check using state equation in 21 ms returned sat
[2025-05-31 22:48:43] [INFO ] [Real]Added 23 Read/Feed constraints in 6 ms returned sat
[2025-05-31 22:48:43] [INFO ] Solution in real domain found non-integer solution.
[2025-05-31 22:48:43] [INFO ] [Nat]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-05-31 22:48:43] [INFO ] [Nat]Absence check using 1 positive and 1 generalized place invariants in 1 ms returned sat
[2025-05-31 22:48:43] [INFO ] [Nat]Absence check using state equation in 21 ms returned sat
[2025-05-31 22:48:43] [INFO ] [Nat]Added 23 Read/Feed constraints in 2 ms returned sat
[2025-05-31 22:48:43] [INFO ] Computed and/alt/rep : 62/434/62 causal constraints (skipped 82 transitions) in 8 ms.
[2025-05-31 22:48:43] [INFO ] Added : 22 causal constraints over 5 iterations in 61 ms. Result :sat
Minimization took 30 ms.
[2025-05-31 22:48:43] [INFO ] [Real]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-05-31 22:48:43] [INFO ] [Real]Absence check using 1 positive and 1 generalized place invariants in 0 ms returned sat
[2025-05-31 22:48:43] [INFO ] [Real]Absence check using state equation in 24 ms returned sat
[2025-05-31 22:48:43] [INFO ] Solution in real domain found non-integer solution.
[2025-05-31 22:48:43] [INFO ] [Nat]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-05-31 22:48:43] [INFO ] [Nat]Absence check using 1 positive and 1 generalized place invariants in 1 ms returned sat
[2025-05-31 22:48:43] [INFO ] [Nat]Absence check using state equation in 26 ms returned sat
[2025-05-31 22:48:43] [INFO ] [Nat]Added 23 Read/Feed constraints in 5 ms returned sat
[2025-05-31 22:48:43] [INFO ] Computed and/alt/rep : 62/434/62 causal constraints (skipped 82 transitions) in 9 ms.
[2025-05-31 22:48:43] [INFO ] Added : 14 causal constraints over 3 iterations in 54 ms. Result :sat
Minimization took 27 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[49681, 46, 23, 2128, 43] Max Struct:[+inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[5791934, 46, 23, 2128, 43] Max Struct:[+inf, +inf, +inf, +inf, +inf]
Support contains 5 out of 53 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 53/53 places, 194/194 transitions.
Applied a total of 0 rules in 7 ms. Remains 53 /53 variables (removed 0) and now considering 194/194 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 7 ms. Remains : 53/53 places, 194/194 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 53/53 places, 194/194 transitions.
Applied a total of 0 rules in 6 ms. Remains 53 /53 variables (removed 0) and now considering 194/194 (removed 0) transitions.
[2025-05-31 22:49:12] [INFO ] Flow matrix only has 146 transitions (discarded 48 similar events)
[2025-05-31 22:49:12] [INFO ] Invariant cache hit.
[2025-05-31 22:49:12] [INFO ] Implicit Places using invariants in 66 ms returned []
[2025-05-31 22:49:12] [INFO ] Flow matrix only has 146 transitions (discarded 48 similar events)
[2025-05-31 22:49:12] [INFO ] Invariant cache hit.
[2025-05-31 22:49:13] [INFO ] State equation strengthened by 23 read => feed constraints.
[2025-05-31 22:49:13] [INFO ] Implicit Places using invariants and state equation in 84 ms returned []
Implicit Place search using SMT with State Equation took 153 ms to find 0 implicit places.
[2025-05-31 22:49:13] [INFO ] Redundant transitions in 7 ms returned []
Running 192 sub problems to find dead transitions.
[2025-05-31 22:49:13] [INFO ] Flow matrix only has 146 transitions (discarded 48 similar events)
[2025-05-31 22:49:13] [INFO ] Invariant cache hit.
[2025-05-31 22:49:13] [INFO ] State equation strengthened by 23 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/52 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 192 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/52 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 192 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/52 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 192 unsolved
At refinement iteration 3 (OVERLAPS) 146/198 variables, 52/54 constraints. Problems are: Problem set: 0 solved, 192 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/198 variables, 23/77 constraints. Problems are: Problem set: 0 solved, 192 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/198 variables, 0/77 constraints. Problems are: Problem set: 0 solved, 192 unsolved
At refinement iteration 6 (OVERLAPS) 1/199 variables, 1/78 constraints. Problems are: Problem set: 0 solved, 192 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/199 variables, 0/78 constraints. Problems are: Problem set: 0 solved, 192 unsolved
At refinement iteration 8 (OVERLAPS) 0/199 variables, 0/78 constraints. Problems are: Problem set: 0 solved, 192 unsolved
No progress, stopping.
After SMT solving in domain Real declared 199/199 variables, and 78 constraints, problems are : Problem set: 0 solved, 192 unsolved in 3528 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 53/53 constraints, ReadFeed: 23/23 constraints, PredecessorRefiner: 192/192 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 192 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/52 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 192 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/52 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 192 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/52 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 192 unsolved
At refinement iteration 3 (OVERLAPS) 146/198 variables, 52/54 constraints. Problems are: Problem set: 0 solved, 192 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/198 variables, 23/77 constraints. Problems are: Problem set: 0 solved, 192 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/198 variables, 12/89 constraints. Problems are: Problem set: 0 solved, 192 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/198 variables, 0/89 constraints. Problems are: Problem set: 0 solved, 192 unsolved
At refinement iteration 7 (OVERLAPS) 1/199 variables, 1/90 constraints. Problems are: Problem set: 0 solved, 192 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/199 variables, 180/270 constraints. Problems are: Problem set: 0 solved, 192 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/199 variables, 0/270 constraints. Problems are: Problem set: 0 solved, 192 unsolved
At refinement iteration 10 (OVERLAPS) 0/199 variables, 0/270 constraints. Problems are: Problem set: 0 solved, 192 unsolved
No progress, stopping.
After SMT solving in domain Int declared 199/199 variables, and 270 constraints, problems are : Problem set: 0 solved, 192 unsolved in 5211 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 53/53 constraints, ReadFeed: 23/23 constraints, PredecessorRefiner: 192/192 constraints, Known Traps: 0/0 constraints]
After SMT, in 8860ms problems are : Problem set: 0 solved, 192 unsolved
Search for dead transitions found 0 dead transitions in 8863ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 9034 ms. Remains : 53/53 places, 194/194 transitions.
[2025-05-31 22:49:21] [INFO ] Flow matrix only has 146 transitions (discarded 48 similar events)
Found an invariant !
This invariant on transitions {12=1, 25=1, 83=1, 84=1, 134=2}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {12=1, 25=1, 92=1, 93=1, 143=2}
Produces a positive solution
Incomplete random walk after 10000 steps, including 66 resets, run finished after 46 ms. (steps per millisecond=217 ) properties (out of 5) seen :[2147483647, 7, 9, 9, 6]
Current structural bounds on expressions (after cover walk) : Max Seen:[+inf, 46, 23, 2128, 43] Max Struct:[+inf, +inf, +inf, +inf, +inf]
[2025-05-31 22:49:22] [INFO ] Flow matrix only has 146 transitions (discarded 48 similar events)
[2025-05-31 22:49:22] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[+inf, 46, 23, 2128, 43] Max Struct:[+inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (5067 resets) in 1197 ms. (834 steps per ms)
FORMULA DoubleLock-PT-p1s1-UpperBounds-01 +inf TECHNIQUES TOPOLOGICAL RANDOM_WALK
BEST_FIRST walk for 4000004 steps (2323 resets) in 1631 ms. (2450 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[46, 23, 2128, 61] Max Struct:[+inf, +inf, +inf, +inf]
[2025-05-31 22:49:24] [INFO ] Flow matrix only has 146 transitions (discarded 48 similar events)
[2025-05-31 22:49:24] [INFO ] Invariant cache hit.
[2025-05-31 22:49:24] [INFO ] [Real]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-05-31 22:49:24] [INFO ] [Real]Absence check using 1 positive and 1 generalized place invariants in 1 ms returned sat
[2025-05-31 22:49:24] [INFO ] [Real]Absence check using state equation in 23 ms returned sat
[2025-05-31 22:49:24] [INFO ] State equation strengthened by 23 read => feed constraints.
[2025-05-31 22:49:24] [INFO ] [Real]Added 23 Read/Feed constraints in 4 ms returned sat
[2025-05-31 22:49:24] [INFO ] Solution in real domain found non-integer solution.
[2025-05-31 22:49:24] [INFO ] [Nat]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-05-31 22:49:24] [INFO ] [Nat]Absence check using 1 positive and 1 generalized place invariants in 1 ms returned sat
[2025-05-31 22:49:25] [INFO ] [Nat]Absence check using state equation in 22 ms returned sat
[2025-05-31 22:49:25] [INFO ] [Nat]Added 23 Read/Feed constraints in 3 ms returned sat
[2025-05-31 22:49:25] [INFO ] Computed and/alt/rep : 62/434/62 causal constraints (skipped 82 transitions) in 9 ms.
[2025-05-31 22:49:25] [INFO ] Added : 17 causal constraints over 4 iterations in 52 ms. Result :sat
Minimization took 29 ms.
[2025-05-31 22:49:25] [INFO ] [Real]Absence check using 1 positive place invariants in 0 ms returned sat
[2025-05-31 22:49:25] [INFO ] [Real]Absence check using 1 positive and 1 generalized place invariants in 0 ms returned sat
[2025-05-31 22:49:25] [INFO ] [Real]Absence check using state equation in 23 ms returned sat
[2025-05-31 22:49:25] [INFO ] Solution in real domain found non-integer solution.
[2025-05-31 22:49:25] [INFO ] [Nat]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-05-31 22:49:25] [INFO ] [Nat]Absence check using 1 positive and 1 generalized place invariants in 1 ms returned sat
[2025-05-31 22:49:25] [INFO ] [Nat]Absence check using state equation in 25 ms returned sat
[2025-05-31 22:49:25] [INFO ] [Nat]Added 23 Read/Feed constraints in 4 ms returned sat
[2025-05-31 22:49:25] [INFO ] Computed and/alt/rep : 62/434/62 causal constraints (skipped 82 transitions) in 8 ms.
[2025-05-31 22:49:25] [INFO ] Added : 21 causal constraints over 6 iterations in 66 ms. Result :sat
Minimization took 30 ms.
[2025-05-31 22:49:25] [INFO ] [Real]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-05-31 22:49:25] [INFO ] [Real]Absence check using 1 positive and 1 generalized place invariants in 0 ms returned sat
[2025-05-31 22:49:25] [INFO ] [Real]Absence check using state equation in 22 ms returned sat
[2025-05-31 22:49:25] [INFO ] [Real]Added 23 Read/Feed constraints in 4 ms returned sat
[2025-05-31 22:49:25] [INFO ] Solution in real domain found non-integer solution.
[2025-05-31 22:49:25] [INFO ] [Nat]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-05-31 22:49:25] [INFO ] [Nat]Absence check using 1 positive and 1 generalized place invariants in 1 ms returned sat
[2025-05-31 22:49:25] [INFO ] [Nat]Absence check using state equation in 22 ms returned sat
[2025-05-31 22:49:25] [INFO ] [Nat]Added 23 Read/Feed constraints in 3 ms returned sat
[2025-05-31 22:49:25] [INFO ] Computed and/alt/rep : 62/434/62 causal constraints (skipped 82 transitions) in 9 ms.
[2025-05-31 22:49:25] [INFO ] Added : 22 causal constraints over 5 iterations in 64 ms. Result :sat
Minimization took 33 ms.
[2025-05-31 22:49:25] [INFO ] [Real]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-05-31 22:49:25] [INFO ] [Real]Absence check using 1 positive and 1 generalized place invariants in 1 ms returned sat
[2025-05-31 22:49:25] [INFO ] [Real]Absence check using state equation in 22 ms returned sat
[2025-05-31 22:49:25] [INFO ] Solution in real domain found non-integer solution.
[2025-05-31 22:49:25] [INFO ] [Nat]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-05-31 22:49:25] [INFO ] [Nat]Absence check using 1 positive and 1 generalized place invariants in 0 ms returned sat
[2025-05-31 22:49:25] [INFO ] [Nat]Absence check using state equation in 21 ms returned sat
[2025-05-31 22:49:25] [INFO ] [Nat]Added 23 Read/Feed constraints in 3 ms returned sat
[2025-05-31 22:49:25] [INFO ] Computed and/alt/rep : 62/434/62 causal constraints (skipped 82 transitions) in 8 ms.
[2025-05-31 22:49:25] [INFO ] Added : 14 causal constraints over 3 iterations in 43 ms. Result :sat
Minimization took 34 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[46, 23, 2128, 61] Max Struct:[+inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[46, 23, 2128, 61] Max Struct:[+inf, +inf, +inf, +inf]
Support contains 4 out of 53 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 53/53 places, 194/194 transitions.
Applied a total of 0 rules in 6 ms. Remains 53 /53 variables (removed 0) and now considering 194/194 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 6 ms. Remains : 53/53 places, 194/194 transitions.
[2025-05-31 22:49:25] [INFO ] Flow matrix only has 146 transitions (discarded 48 similar events)
Found an invariant !
This invariant on transitions {12=1, 25=1, 83=1, 84=1, 134=2}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {12=1, 25=1, 92=1, 93=1, 143=2}
Produces a positive solution
Incomplete random walk after 10000 steps, including 62 resets, run finished after 18 ms. (steps per millisecond=555 ) properties (out of 4) seen :[5, 8, 12, 3]
Current structural bounds on expressions (after cover walk) : Max Seen:[46, 23, 2128, 61] Max Struct:[+inf, +inf, +inf, +inf]
[2025-05-31 22:49:25] [INFO ] Flow matrix only has 146 transitions (discarded 48 similar events)
[2025-05-31 22:49:25] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[46, 23, 2128, 61] Max Struct:[+inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (5103 resets) in 1170 ms. (853 steps per ms)
BEST_FIRST walk for 4000004 steps (2325 resets) in 1626 ms. (2458 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[47, 23, 2128, 61] Max Struct:[+inf, +inf, +inf, +inf]
[2025-05-31 22:49:28] [INFO ] Flow matrix only has 146 transitions (discarded 48 similar events)
[2025-05-31 22:49:28] [INFO ] Invariant cache hit.
[2025-05-31 22:49:28] [INFO ] [Real]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-05-31 22:49:28] [INFO ] [Real]Absence check using 1 positive and 1 generalized place invariants in 1 ms returned sat
[2025-05-31 22:49:28] [INFO ] [Real]Absence check using state equation in 23 ms returned sat
[2025-05-31 22:49:28] [INFO ] Solution in real domain found non-integer solution.
[2025-05-31 22:49:28] [INFO ] [Nat]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-05-31 22:49:28] [INFO ] [Nat]Absence check using 1 positive and 1 generalized place invariants in 1 ms returned sat
[2025-05-31 22:49:28] [INFO ] [Nat]Absence check using state equation in 22 ms returned sat
[2025-05-31 22:49:28] [INFO ] State equation strengthened by 23 read => feed constraints.
[2025-05-31 22:49:28] [INFO ] [Nat]Added 23 Read/Feed constraints in 3 ms returned sat
[2025-05-31 22:49:28] [INFO ] Computed and/alt/rep : 62/434/62 causal constraints (skipped 82 transitions) in 8 ms.
[2025-05-31 22:49:28] [INFO ] Added : 21 causal constraints over 5 iterations in 61 ms. Result :sat
Minimization took 32 ms.
[2025-05-31 22:49:29] [INFO ] [Real]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-05-31 22:49:29] [INFO ] [Real]Absence check using 1 positive and 1 generalized place invariants in 1 ms returned sat
[2025-05-31 22:49:29] [INFO ] [Real]Absence check using state equation in 24 ms returned sat
[2025-05-31 22:49:29] [INFO ] Solution in real domain found non-integer solution.
[2025-05-31 22:49:29] [INFO ] [Nat]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-05-31 22:49:29] [INFO ] [Nat]Absence check using 1 positive and 1 generalized place invariants in 1 ms returned sat
[2025-05-31 22:49:29] [INFO ] [Nat]Absence check using state equation in 25 ms returned sat
[2025-05-31 22:49:29] [INFO ] [Nat]Added 23 Read/Feed constraints in 4 ms returned sat
[2025-05-31 22:49:29] [INFO ] Computed and/alt/rep : 62/434/62 causal constraints (skipped 82 transitions) in 7 ms.
[2025-05-31 22:49:29] [INFO ] Added : 21 causal constraints over 6 iterations in 64 ms. Result :sat
Minimization took 30 ms.
[2025-05-31 22:49:29] [INFO ] [Real]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-05-31 22:49:29] [INFO ] [Real]Absence check using 1 positive and 1 generalized place invariants in 1 ms returned sat
[2025-05-31 22:49:29] [INFO ] [Real]Absence check using state equation in 23 ms returned sat
[2025-05-31 22:49:29] [INFO ] [Real]Added 23 Read/Feed constraints in 4 ms returned sat
[2025-05-31 22:49:29] [INFO ] Solution in real domain found non-integer solution.
[2025-05-31 22:49:29] [INFO ] [Nat]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-05-31 22:49:29] [INFO ] [Nat]Absence check using 1 positive and 1 generalized place invariants in 4 ms returned sat
[2025-05-31 22:49:29] [INFO ] [Nat]Absence check using state equation in 27 ms returned sat
[2025-05-31 22:49:29] [INFO ] [Nat]Added 23 Read/Feed constraints in 3 ms returned sat
[2025-05-31 22:49:29] [INFO ] Computed and/alt/rep : 62/434/62 causal constraints (skipped 82 transitions) in 8 ms.
[2025-05-31 22:49:29] [INFO ] Added : 22 causal constraints over 5 iterations in 59 ms. Result :sat
Minimization took 32 ms.
[2025-05-31 22:49:29] [INFO ] [Real]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-05-31 22:49:29] [INFO ] [Real]Absence check using 1 positive and 1 generalized place invariants in 1 ms returned sat
[2025-05-31 22:49:29] [INFO ] [Real]Absence check using state equation in 22 ms returned sat
[2025-05-31 22:49:29] [INFO ] Solution in real domain found non-integer solution.
[2025-05-31 22:49:29] [INFO ] [Nat]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-05-31 22:49:29] [INFO ] [Nat]Absence check using 1 positive and 1 generalized place invariants in 1 ms returned sat
[2025-05-31 22:49:29] [INFO ] [Nat]Absence check using state equation in 22 ms returned sat
[2025-05-31 22:49:29] [INFO ] [Nat]Added 23 Read/Feed constraints in 4 ms returned sat
[2025-05-31 22:49:29] [INFO ] Computed and/alt/rep : 62/434/62 causal constraints (skipped 82 transitions) in 8 ms.
[2025-05-31 22:49:29] [INFO ] Added : 14 causal constraints over 3 iterations in 42 ms. Result :sat
Minimization took 30 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[47, 23, 2128, 61] Max Struct:[+inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[47, 23, 2128, 61] Max Struct:[+inf, +inf, +inf, +inf]
Support contains 4 out of 53 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 53/53 places, 194/194 transitions.
Applied a total of 0 rules in 5 ms. Remains 53 /53 variables (removed 0) and now considering 194/194 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 5 ms. Remains : 53/53 places, 194/194 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 53/53 places, 194/194 transitions.
Applied a total of 0 rules in 5 ms. Remains 53 /53 variables (removed 0) and now considering 194/194 (removed 0) transitions.
[2025-05-31 22:49:29] [INFO ] Flow matrix only has 146 transitions (discarded 48 similar events)
[2025-05-31 22:49:29] [INFO ] Invariant cache hit.
[2025-05-31 22:49:29] [INFO ] Implicit Places using invariants in 36 ms returned []
[2025-05-31 22:49:29] [INFO ] Flow matrix only has 146 transitions (discarded 48 similar events)
[2025-05-31 22:49:29] [INFO ] Invariant cache hit.
[2025-05-31 22:49:29] [INFO ] State equation strengthened by 23 read => feed constraints.
[2025-05-31 22:49:29] [INFO ] Implicit Places using invariants and state equation in 77 ms returned []
Implicit Place search using SMT with State Equation took 115 ms to find 0 implicit places.
[2025-05-31 22:49:29] [INFO ] Redundant transitions in 2 ms returned []
Running 192 sub problems to find dead transitions.
[2025-05-31 22:49:29] [INFO ] Flow matrix only has 146 transitions (discarded 48 similar events)
[2025-05-31 22:49:29] [INFO ] Invariant cache hit.
[2025-05-31 22:49:29] [INFO ] State equation strengthened by 23 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/52 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 192 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/52 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 192 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/52 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 192 unsolved
At refinement iteration 3 (OVERLAPS) 146/198 variables, 52/54 constraints. Problems are: Problem set: 0 solved, 192 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/198 variables, 23/77 constraints. Problems are: Problem set: 0 solved, 192 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/198 variables, 0/77 constraints. Problems are: Problem set: 0 solved, 192 unsolved
At refinement iteration 6 (OVERLAPS) 1/199 variables, 1/78 constraints. Problems are: Problem set: 0 solved, 192 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/199 variables, 0/78 constraints. Problems are: Problem set: 0 solved, 192 unsolved
At refinement iteration 8 (OVERLAPS) 0/199 variables, 0/78 constraints. Problems are: Problem set: 0 solved, 192 unsolved
No progress, stopping.
After SMT solving in domain Real declared 199/199 variables, and 78 constraints, problems are : Problem set: 0 solved, 192 unsolved in 3525 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 53/53 constraints, ReadFeed: 23/23 constraints, PredecessorRefiner: 192/192 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 192 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/52 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 192 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/52 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 192 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/52 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 192 unsolved
At refinement iteration 3 (OVERLAPS) 146/198 variables, 52/54 constraints. Problems are: Problem set: 0 solved, 192 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/198 variables, 23/77 constraints. Problems are: Problem set: 0 solved, 192 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/198 variables, 12/89 constraints. Problems are: Problem set: 0 solved, 192 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/198 variables, 0/89 constraints. Problems are: Problem set: 0 solved, 192 unsolved
At refinement iteration 7 (OVERLAPS) 1/199 variables, 1/90 constraints. Problems are: Problem set: 0 solved, 192 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/199 variables, 180/270 constraints. Problems are: Problem set: 0 solved, 192 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/199 variables, 0/270 constraints. Problems are: Problem set: 0 solved, 192 unsolved
At refinement iteration 10 (OVERLAPS) 0/199 variables, 0/270 constraints. Problems are: Problem set: 0 solved, 192 unsolved
No progress, stopping.
After SMT solving in domain Int declared 199/199 variables, and 270 constraints, problems are : Problem set: 0 solved, 192 unsolved in 5429 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 53/53 constraints, ReadFeed: 23/23 constraints, PredecessorRefiner: 192/192 constraints, Known Traps: 0/0 constraints]
After SMT, in 9048ms problems are : Problem set: 0 solved, 192 unsolved
Search for dead transitions found 0 dead transitions in 9054ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 9180 ms. Remains : 53/53 places, 194/194 transitions.
[2025-05-31 22:49:38] [INFO ] Flow matrix only has 146 transitions (discarded 48 similar events)
Found an invariant !
This invariant on transitions {12=1, 25=1, 83=1, 84=1, 134=2}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {12=1, 25=1, 92=1, 93=1, 143=2}
Produces a positive solution
Incomplete random walk after 10000 steps, including 52 resets, run finished after 24 ms. (steps per millisecond=416 ) properties (out of 4) seen :[6, 2147483647, 17, 5]
Current structural bounds on expressions (after cover walk) : Max Seen:[47, +inf, 2128, 61] Max Struct:[+inf, +inf, +inf, +inf]
[2025-05-31 22:49:39] [INFO ] Flow matrix only has 146 transitions (discarded 48 similar events)
[2025-05-31 22:49:39] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[47, +inf, 2128, 61] Max Struct:[+inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (5068 resets) in 1176 ms. (849 steps per ms)
FORMULA DoubleLock-PT-p1s1-UpperBounds-08 +inf TECHNIQUES TOPOLOGICAL RANDOM_WALK
BEST_FIRST walk for 3000003 steps (2360 resets) in 1241 ms. (2415 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[47, 2128, 61] Max Struct:[+inf, +inf, +inf]
[2025-05-31 22:49:41] [INFO ] Flow matrix only has 146 transitions (discarded 48 similar events)
[2025-05-31 22:49:41] [INFO ] Invariant cache hit.
[2025-05-31 22:49:41] [INFO ] [Real]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-05-31 22:49:41] [INFO ] [Real]Absence check using 1 positive and 1 generalized place invariants in 1 ms returned sat
[2025-05-31 22:49:41] [INFO ] [Real]Absence check using state equation in 27 ms returned sat
[2025-05-31 22:49:41] [INFO ] Solution in real domain found non-integer solution.
[2025-05-31 22:49:41] [INFO ] [Nat]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-05-31 22:49:41] [INFO ] [Nat]Absence check using 1 positive and 1 generalized place invariants in 1 ms returned sat
[2025-05-31 22:49:41] [INFO ] [Nat]Absence check using state equation in 22 ms returned sat
[2025-05-31 22:49:41] [INFO ] State equation strengthened by 23 read => feed constraints.
[2025-05-31 22:49:41] [INFO ] [Nat]Added 23 Read/Feed constraints in 3 ms returned sat
[2025-05-31 22:49:41] [INFO ] Computed and/alt/rep : 62/434/62 causal constraints (skipped 82 transitions) in 7 ms.
[2025-05-31 22:49:41] [INFO ] Added : 21 causal constraints over 5 iterations in 84 ms. Result :sat
Minimization took 33 ms.
[2025-05-31 22:49:41] [INFO ] [Real]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-05-31 22:49:41] [INFO ] [Real]Absence check using 1 positive and 1 generalized place invariants in 0 ms returned sat
[2025-05-31 22:49:41] [INFO ] [Real]Absence check using state equation in 32 ms returned sat
[2025-05-31 22:49:41] [INFO ] [Real]Added 23 Read/Feed constraints in 5 ms returned sat
[2025-05-31 22:49:41] [INFO ] Solution in real domain found non-integer solution.
[2025-05-31 22:49:41] [INFO ] [Nat]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-05-31 22:49:41] [INFO ] [Nat]Absence check using 1 positive and 1 generalized place invariants in 1 ms returned sat
[2025-05-31 22:49:41] [INFO ] [Nat]Absence check using state equation in 26 ms returned sat
[2025-05-31 22:49:41] [INFO ] [Nat]Added 23 Read/Feed constraints in 3 ms returned sat
[2025-05-31 22:49:41] [INFO ] Computed and/alt/rep : 62/434/62 causal constraints (skipped 82 transitions) in 7 ms.
[2025-05-31 22:49:41] [INFO ] Added : 22 causal constraints over 5 iterations in 59 ms. Result :sat
Minimization took 31 ms.
[2025-05-31 22:49:41] [INFO ] [Real]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-05-31 22:49:41] [INFO ] [Real]Absence check using 1 positive and 1 generalized place invariants in 0 ms returned sat
[2025-05-31 22:49:41] [INFO ] [Real]Absence check using state equation in 22 ms returned sat
[2025-05-31 22:49:41] [INFO ] Solution in real domain found non-integer solution.
[2025-05-31 22:49:41] [INFO ] [Nat]Absence check using 1 positive place invariants in 1 ms returned sat
[2025-05-31 22:49:41] [INFO ] [Nat]Absence check using 1 positive and 1 generalized place invariants in 1 ms returned sat
[2025-05-31 22:49:41] [INFO ] [Nat]Absence check using state equation in 22 ms returned sat
[2025-05-31 22:49:41] [INFO ] [Nat]Added 23 Read/Feed constraints in 3 ms returned sat
[2025-05-31 22:49:41] [INFO ] Computed and/alt/rep : 62/434/62 causal constraints (skipped 82 transitions) in 7 ms.
[2025-05-31 22:49:42] [INFO ] Added : 14 causal constraints over 3 iterations in 47 ms. Result :sat
Minimization took 28 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[47, 2128, 61] Max Struct:[+inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[47, 2128, 61] Max Struct:[+inf, +inf, +inf]
Support contains 3 out of 53 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 53/53 places, 194/194 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 2 place count 53 transition count 192
Applied a total of 2 rules in 12 ms. Remains 53 /53 variables (removed 0) and now considering 192/194 (removed 2) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 12 ms. Remains : 53/53 places, 192/194 transitions.
[2025-05-31 22:49:42] [INFO ] Flow matrix only has 144 transitions (discarded 48 similar events)
Found an invariant !
This invariant on transitions {5=2, 11=1, 24=1, 28=2, 45=2, 46=2, 81=1, 82=1, 92=2, 94=2, 108=2, 117=2, 132=2}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {11=1, 24=1, 90=1, 91=1, 142=2}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 19 ms. (steps per millisecond=526 ) properties (out of 3) seen :[2147483647, 2147483647, 2147483647]
Current structural bounds on expressions (after cover walk) : Max Seen:[+inf, +inf, +inf] Max Struct:[+inf, +inf, +inf]
[2025-05-31 22:49:42] [INFO ] Flow matrix only has 144 transitions (discarded 48 similar events)
// Phase 1: matrix 144 rows 53 cols
[2025-05-31 22:49:42] [INFO ] Computed 3 invariants in 3 ms
Current structural bounds on expressions (after invariants) : Max Seen:[+inf, +inf, +inf] Max Struct:[+inf, +inf, +inf]
RANDOM walk for 1000003 steps (2 resets) in 1417 ms. (705 steps per ms)
FORMULA DoubleLock-PT-p1s1-UpperBounds-15 +inf TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA DoubleLock-PT-p1s1-UpperBounds-14 +inf TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA DoubleLock-PT-p1s1-UpperBounds-11 +inf TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA DoubleLock-PT-p1s1-UpperBounds-03 +inf TECHNIQUES TOPOLOGICAL RANDOM_WALK
BEST_FIRST walk for 0 steps (0 resets) in 0 ms. (0 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[] Max Struct:[]
RANDOM walk for 0 steps (0 resets) in 4 ms. (0 steps per ms) remains 0/0 properties
Finished probabilistic random walk after 0 steps, run visited all 0 properties in 0 ms. (steps per millisecond=0 )
[2025-05-31 22:49:43] [INFO ] Flatten gal took : 59 ms
[2025-05-31 22:49:43] [INFO ] Flatten gal took : 19 ms
[2025-05-31 22:49:43] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality12802801814087541487.gal : 25 ms
[2025-05-31 22:49:43] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality9293568015762875303.prop : 0 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202405141337/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality12802801814087541487.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality9293568015762875303.prop' '--nowitness' '--gen-order' 'FOLLOW'
ITS runner timed out or was interrupted.

ITS tools runner thread asked to quit. Dying gracefully.
java.io.IOException: Stream closed
at java.base/java.io.BufferedInputStream.getBufIfOpen(BufferedInputStream.java:168)
at java.base/java.io.BufferedInputStream.read(BufferedInputStream.java:334)
at java.base/sun.nio.cs.StreamDecoder.readBytes(StreamDecoder.java:270)
at java.base/sun.nio.cs.StreamDecoder.implRead(StreamDecoder.java:313)
at java.base/sun.nio.cs.StreamDecoder.read(StreamDecoder.java:188)
at java.base/java.io.InputStreamReader.read(InputStreamReader.java:177)
at java.base/java.io.BufferedReader.fill(BufferedReader.java:162)
at java.base/java.io.BufferedReader.readLine(BufferedReader.java:329)
at java.base/java.io.BufferedReader.readLine(BufferedReader.java:396)
at fr.lip6.move.gal.application.runner.its.ITSRunner$ITSInterpreter.run(ITSRunner.java:211)
at java.base/java.lang.Thread.run(Thread.java:840)
Current structural bounds on expressions (After reachability solving 0 queries.) : Max Seen:[] Max Struct:[]
All properties solved without resorting to model-checking.
Total runtime 82540 ms.

BK_STOP 1748731784055

--------------------
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
+ export PYTHONPATH=/home/mcc/BenchKit/itstools/pylibs
+ PYTHONPATH=/home/mcc/BenchKit/itstools/pylibs
+ export LD_LIBRARY_PATH=/home/mcc/BenchKit/itstools/pylibs:
+ LD_LIBRARY_PATH=/home/mcc/BenchKit/itstools/pylibs:
++ sed s/.jar//
++ perl -pe 's/.*\.//g'
++ ls /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202405141337.jar
+ VERSION=202405141337
+ echo 'Running Version 202405141337'
+ /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="DoubleLock-PT-p1s1"
export BK_EXAMINATION="UpperBounds"
export BK_TOOL="gold2024"
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 gold2024"
echo " Input is DoubleLock-PT-p1s1, 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 r083-tall-174860079700066"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/DoubleLock-PT-p1s1.tgz
mv DoubleLock-PT-p1s1 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 ;