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.r111-smll-174867015800007.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 FunctionPointer-PT-a128, examination is UpperBounds
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r111-smll-174867015800007
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 580K
-rw-r--r-- 1 mcc users 7.6K May 29 14:47 CTLCardinality.txt
-rw-r--r-- 1 mcc users 84K 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 49K May 29 14:47 CTLFireability.xml
-rw-r--r-- 1 mcc users 3.6K May 29 14:47 LTLCardinality.txt
-rw-r--r-- 1 mcc users 26K May 29 14:47 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.2K 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 14K May 29 14:47 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 152K May 29 14:47 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 13K May 29 14:47 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 125K May 29 14:47 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K May 29 14:47 UpperBounds.txt
-rw-r--r-- 1 mcc users 4.1K 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 34K 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 FunctionPointer-PT-a128-UpperBounds-00
FORMULA_NAME FunctionPointer-PT-a128-UpperBounds-01
FORMULA_NAME FunctionPointer-PT-a128-UpperBounds-02
FORMULA_NAME FunctionPointer-PT-a128-UpperBounds-03
FORMULA_NAME FunctionPointer-PT-a128-UpperBounds-04
FORMULA_NAME FunctionPointer-PT-a128-UpperBounds-05
FORMULA_NAME FunctionPointer-PT-a128-UpperBounds-06
FORMULA_NAME FunctionPointer-PT-a128-UpperBounds-07
FORMULA_NAME FunctionPointer-PT-a128-UpperBounds-08
FORMULA_NAME FunctionPointer-PT-a128-UpperBounds-09
FORMULA_NAME FunctionPointer-PT-a128-UpperBounds-10
FORMULA_NAME FunctionPointer-PT-a128-UpperBounds-11
FORMULA_NAME FunctionPointer-PT-a128-UpperBounds-12
FORMULA_NAME FunctionPointer-PT-a128-UpperBounds-13
FORMULA_NAME FunctionPointer-PT-a128-UpperBounds-14
FORMULA_NAME FunctionPointer-PT-a128-UpperBounds-15

=== Now, execution of the tool begins

BK_START 1748762069440

Invoking MCC driver with
BK_TOOL=gold2024
BK_EXAMINATION=UpperBounds
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=FunctionPointer-PT-a128
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
UpperBounds PT
Running Version 202405141337
[2025-06-01 07:14:31] [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]
[2025-06-01 07:14:31] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2025-06-01 07:14:31] [INFO ] Load time of PNML (sax parser for PT used): 118 ms
[2025-06-01 07:14:31] [INFO ] Transformed 40 places.
[2025-06-01 07:14:31] [INFO ] Transformed 70 transitions.
[2025-06-01 07:14:31] [INFO ] Parsed PT model containing 40 places and 70 transitions and 284 arcs in 277 ms.
Parsed 16 properties from file /home/mcc/execution/UpperBounds.xml in 18 ms.
Reduction of identical properties reduced properties to check from 16 to 15
Deduced a syphon composed of 6 places in 2 ms
Reduce places removed 6 places and 4 transitions.
FORMULA FunctionPointer-PT-a128-UpperBounds-02 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA FunctionPointer-PT-a128-UpperBounds-04 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA FunctionPointer-PT-a128-UpperBounds-14 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] Max Struct:[+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] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 07:14:31] [INFO ] Flow matrix only has 46 transitions (discarded 20 similar events)
// Phase 1: matrix 46 rows 34 cols
[2025-06-01 07:14:31] [INFO ] Computed 4 invariants in 8 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[1, 128, +inf, +inf, +inf, +inf, 1, +inf, +inf, 128, +inf, +inf]
RANDOM walk for 10067 steps (12 resets) in 53 ms. (186 steps per ms)
FORMULA FunctionPointer-PT-a128-UpperBounds-08 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA FunctionPointer-PT-a128-UpperBounds-00 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 100008 steps (154 resets) in 168 ms. (591 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[43, 13, 50, 25, 12, 42, 13, 10, 6, 4] Max Struct:[128, +inf, +inf, +inf, +inf, +inf, +inf, 128, +inf, +inf]
[2025-06-01 07:14:32] [INFO ] Flow matrix only has 46 transitions (discarded 20 similar events)
[2025-06-01 07:14:32] [INFO ] Invariant cache hit.
[2025-06-01 07:14:32] [INFO ] [Real]Absence check using 3 positive place invariants in 7 ms returned sat
[2025-06-01 07:14:32] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 2 ms returned sat
[2025-06-01 07:14:32] [INFO ] [Real]Absence check using state equation in 59 ms returned sat
[2025-06-01 07:14:32] [INFO ] State equation strengthened by 8 read => feed constraints.
[2025-06-01 07:14:32] [INFO ] [Real]Added 8 Read/Feed constraints in 7 ms returned sat
[2025-06-01 07:14:32] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:14:32] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:14:32] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2025-06-01 07:14:32] [INFO ] [Nat]Absence check using state equation in 44 ms returned sat
[2025-06-01 07:14:32] [INFO ] [Nat]Added 8 Read/Feed constraints in 7 ms returned sat
[2025-06-01 07:14:32] [INFO ] Computed and/alt/rep : 25/101/23 causal constraints (skipped 21 transitions) in 14 ms.
[2025-06-01 07:14:32] [INFO ] Added : 18 causal constraints over 4 iterations in 83 ms. Result :sat
Minimization took 156 ms.
[2025-06-01 07:14:33] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:14:33] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2025-06-01 07:14:33] [INFO ] [Real]Absence check using state equation in 26 ms returned sat
[2025-06-01 07:14:33] [INFO ] [Real]Added 8 Read/Feed constraints in 7 ms returned sat
[2025-06-01 07:14:33] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:14:33] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 07:14:33] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 16 ms returned sat
[2025-06-01 07:14:33] [INFO ] [Nat]Absence check using state equation in 45 ms returned sat
[2025-06-01 07:14:33] [INFO ] [Nat]Added 8 Read/Feed constraints in 2 ms returned sat
[2025-06-01 07:14:33] [INFO ] Deduced a trap composed of 7 places in 77 ms of which 13 ms to minimize.
[2025-06-01 07:14:33] [INFO ] Deduced a trap composed of 7 places in 43 ms of which 1 ms to minimize.
[2025-06-01 07:14:33] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 141 ms
[2025-06-01 07:14:33] [INFO ] Computed and/alt/rep : 25/101/23 causal constraints (skipped 21 transitions) in 8 ms.
[2025-06-01 07:14:33] [INFO ] Added : 19 causal constraints over 5 iterations in 80 ms. Result :sat
Minimization took 16 ms.
[2025-06-01 07:14:33] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:14:33] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2025-06-01 07:14:33] [INFO ] [Real]Absence check using state equation in 35 ms returned sat
[2025-06-01 07:14:33] [INFO ] [Real]Added 8 Read/Feed constraints in 5 ms returned sat
[2025-06-01 07:14:33] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:14:33] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 07:14:33] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 3 ms returned sat
[2025-06-01 07:14:33] [INFO ] [Nat]Absence check using state equation in 29 ms returned sat
[2025-06-01 07:14:33] [INFO ] [Nat]Added 8 Read/Feed constraints in 3 ms returned sat
[2025-06-01 07:14:33] [INFO ] Deduced a trap composed of 7 places in 50 ms of which 1 ms to minimize.
[2025-06-01 07:14:33] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 62 ms
[2025-06-01 07:14:33] [INFO ] Computed and/alt/rep : 25/101/23 causal constraints (skipped 21 transitions) in 9 ms.
[2025-06-01 07:14:33] [INFO ] Added : 5 causal constraints over 2 iterations in 33 ms. Result :sat
Minimization took 18 ms.
[2025-06-01 07:14:33] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:14:33] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2025-06-01 07:14:33] [INFO ] [Real]Absence check using state equation in 27 ms returned sat
[2025-06-01 07:14:33] [INFO ] [Real]Added 8 Read/Feed constraints in 4 ms returned sat
[2025-06-01 07:14:33] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:14:33] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:14:33] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2025-06-01 07:14:33] [INFO ] [Nat]Absence check using state equation in 39 ms returned sat
[2025-06-01 07:14:33] [INFO ] [Nat]Added 8 Read/Feed constraints in 12 ms returned sat
[2025-06-01 07:14:34] [INFO ] Deduced a trap composed of 7 places in 65 ms of which 2 ms to minimize.
[2025-06-01 07:14:34] [INFO ] Deduced a trap composed of 9 places in 73 ms of which 2 ms to minimize.
[2025-06-01 07:14:34] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 154 ms
[2025-06-01 07:14:34] [INFO ] Computed and/alt/rep : 25/101/23 causal constraints (skipped 21 transitions) in 10 ms.
[2025-06-01 07:14:34] [INFO ] Added : 13 causal constraints over 3 iterations in 49 ms. Result :sat
Minimization took 23 ms.
[2025-06-01 07:14:34] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:14:34] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2025-06-01 07:14:34] [INFO ] [Real]Absence check using state equation in 28 ms returned sat
[2025-06-01 07:14:34] [INFO ] [Real]Added 8 Read/Feed constraints in 3 ms returned sat
[2025-06-01 07:14:34] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:14:34] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:14:34] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2025-06-01 07:14:34] [INFO ] [Nat]Absence check using state equation in 26 ms returned sat
[2025-06-01 07:14:34] [INFO ] [Nat]Added 8 Read/Feed constraints in 3 ms returned sat
[2025-06-01 07:14:34] [INFO ] Deduced a trap composed of 7 places in 57 ms of which 1 ms to minimize.
[2025-06-01 07:14:34] [INFO ] Deduced a trap composed of 7 places in 50 ms of which 2 ms to minimize.
[2025-06-01 07:14:34] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 121 ms
[2025-06-01 07:14:34] [INFO ] Computed and/alt/rep : 25/101/23 causal constraints (skipped 21 transitions) in 8 ms.
[2025-06-01 07:14:34] [INFO ] Added : 19 causal constraints over 5 iterations in 61 ms. Result :sat
Minimization took 24 ms.
[2025-06-01 07:14:34] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:14:34] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2025-06-01 07:14:34] [INFO ] [Real]Absence check using state equation in 32 ms returned sat
[2025-06-01 07:14:34] [INFO ] [Real]Added 8 Read/Feed constraints in 5 ms returned sat
[2025-06-01 07:14:34] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:14:34] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:14:34] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2025-06-01 07:14:34] [INFO ] [Nat]Absence check using state equation in 23 ms returned sat
[2025-06-01 07:14:34] [INFO ] [Nat]Added 8 Read/Feed constraints in 3 ms returned sat
[2025-06-01 07:14:34] [INFO ] Deduced a trap composed of 7 places in 48 ms of which 2 ms to minimize.
[2025-06-01 07:14:34] [INFO ] Deduced a trap composed of 7 places in 42 ms of which 1 ms to minimize.
[2025-06-01 07:14:34] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 106 ms
[2025-06-01 07:14:34] [INFO ] Computed and/alt/rep : 25/101/23 causal constraints (skipped 21 transitions) in 5 ms.
[2025-06-01 07:14:34] [INFO ] Added : 6 causal constraints over 2 iterations in 22 ms. Result :sat
Minimization took 12 ms.
[2025-06-01 07:14:34] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:14:34] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2025-06-01 07:14:34] [INFO ] [Real]Absence check using state equation in 20 ms returned sat
[2025-06-01 07:14:34] [INFO ] [Real]Added 8 Read/Feed constraints in 3 ms returned sat
[2025-06-01 07:14:34] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:14:34] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:14:34] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2025-06-01 07:14:34] [INFO ] [Nat]Absence check using state equation in 16 ms returned sat
[2025-06-01 07:14:34] [INFO ] [Nat]Added 8 Read/Feed constraints in 2 ms returned sat
[2025-06-01 07:14:34] [INFO ] Deduced a trap composed of 7 places in 45 ms of which 2 ms to minimize.
[2025-06-01 07:14:34] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 52 ms
[2025-06-01 07:14:34] [INFO ] Computed and/alt/rep : 25/101/23 causal constraints (skipped 21 transitions) in 6 ms.
[2025-06-01 07:14:35] [INFO ] Added : 13 causal constraints over 3 iterations in 29 ms. Result :sat
Minimization took 13 ms.
[2025-06-01 07:14:35] [INFO ] [Real]Absence check using 3 positive place invariants in 1 ms returned sat
[2025-06-01 07:14:35] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2025-06-01 07:14:35] [INFO ] [Real]Absence check using state equation in 17 ms returned sat
[2025-06-01 07:14:35] [INFO ] [Real]Added 8 Read/Feed constraints in 3 ms returned sat
[2025-06-01 07:14:35] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:14:35] [INFO ] [Nat]Absence check using 3 positive place invariants in 1 ms returned sat
[2025-06-01 07:14:35] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 0 ms returned sat
[2025-06-01 07:14:35] [INFO ] [Nat]Absence check using state equation in 16 ms returned sat
[2025-06-01 07:14:35] [INFO ] [Nat]Added 8 Read/Feed constraints in 2 ms returned sat
[2025-06-01 07:14:35] [INFO ] Computed and/alt/rep : 25/101/23 causal constraints (skipped 21 transitions) in 5 ms.
[2025-06-01 07:14:35] [INFO ] Added : 19 causal constraints over 4 iterations in 34 ms. Result :sat
Minimization took 16 ms.
[2025-06-01 07:14:35] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:14:35] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2025-06-01 07:14:35] [INFO ] [Real]Absence check using state equation in 18 ms returned sat
[2025-06-01 07:14:35] [INFO ] [Real]Added 8 Read/Feed constraints in 2 ms returned sat
[2025-06-01 07:14:35] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:14:35] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:14:35] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2025-06-01 07:14:35] [INFO ] [Nat]Absence check using state equation in 18 ms returned sat
[2025-06-01 07:14:35] [INFO ] [Nat]Added 8 Read/Feed constraints in 1 ms returned sat
[2025-06-01 07:14:35] [INFO ] Deduced a trap composed of 9 places in 31 ms of which 1 ms to minimize.
[2025-06-01 07:14:35] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 38 ms
[2025-06-01 07:14:35] [INFO ] Computed and/alt/rep : 25/101/23 causal constraints (skipped 21 transitions) in 5 ms.
[2025-06-01 07:14:35] [INFO ] Added : 13 causal constraints over 3 iterations in 27 ms. Result :sat
Minimization took 13 ms.
[2025-06-01 07:14:35] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:14:35] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2025-06-01 07:14:35] [INFO ] [Real]Absence check using state equation in 24 ms returned sat
[2025-06-01 07:14:35] [INFO ] [Real]Added 8 Read/Feed constraints in 3 ms returned sat
[2025-06-01 07:14:35] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:14:35] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:14:35] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2025-06-01 07:14:35] [INFO ] [Nat]Absence check using state equation in 17 ms returned sat
[2025-06-01 07:14:35] [INFO ] [Nat]Added 8 Read/Feed constraints in 3 ms returned sat
[2025-06-01 07:14:35] [INFO ] Deduced a trap composed of 7 places in 43 ms of which 2 ms to minimize.
[2025-06-01 07:14:35] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 51 ms
[2025-06-01 07:14:35] [INFO ] Computed and/alt/rep : 25/101/23 causal constraints (skipped 21 transitions) in 7 ms.
[2025-06-01 07:14:35] [INFO ] Added : 13 causal constraints over 3 iterations in 49 ms. Result :sat
Minimization took 21 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[43, 13, 50, 25, 12, 42, 13, 10, 6, 4] Max Struct:[128, +inf, +inf, +inf, +inf, +inf, +inf, 128, +inf, +inf]
FORMULA FunctionPointer-PT-a128-UpperBounds-01 128 TECHNIQUES TOPOLOGICAL PARIKH_WALK
FORMULA FunctionPointer-PT-a128-UpperBounds-11 128 TECHNIQUES TOPOLOGICAL PARIKH_WALK
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[14, 253, 49, 29, 128, 13, 6, 4] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
Support contains 8 out of 34 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 34/34 places, 66/66 transitions.
Graph (complete) has 118 edges and 34 vertex of which 32 are kept as prefixes of interest. Removing 2 places using SCC suffix rule.1 ms
Discarding 2 places :
Also discarding 0 output transitions
Drop transitions (Empty/Sink Transition effects.) removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 32 transition count 65
Drop transitions (Redundant composition of simpler transitions.) removed 2 transitions
Redundant transition composition rules discarded 2 transitions
Iterating global reduction 1 with 2 rules applied. Total rules applied 4 place count 32 transition count 63
Applied a total of 4 rules in 45 ms. Remains 32 /34 variables (removed 2) and now considering 63/66 (removed 3) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 66 ms. Remains : 32/34 places, 63/66 transitions.
[2025-06-01 07:14:36] [INFO ] Flow matrix only has 44 transitions (discarded 19 similar events)
Found an invariant !
This invariant on transitions {3=1, 5=1, 22=1, 33=1, 42=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {5=1, 22=1, 33=1, 42=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 85 ms. (steps per millisecond=117 ) properties (out of 8) seen :[7, 139, 140, 6, 10, 14, 7, 4]
Current structural bounds on expressions (after cover walk) : Max Seen:[14, 253, 140, 29, 128, 14, 7, 4] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 07:14:36] [INFO ] Flow matrix only has 44 transitions (discarded 19 similar events)
// Phase 1: matrix 44 rows 32 cols
[2025-06-01 07:14:36] [INFO ] Computed 3 invariants in 6 ms
Current structural bounds on expressions (after invariants) : Max Seen:[14, 253, 140, 29, 128, 14, 7, 4] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000013 steps (2 resets) in 774 ms. (1290 steps per ms)
BEST_FIRST walk for 8000008 steps (16 resets) in 3697 ms. (2163 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[5641, 253, 3546, 5647, 147, 3153, 941, 937] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 07:14:41] [INFO ] Flow matrix only has 44 transitions (discarded 19 similar events)
[2025-06-01 07:14:41] [INFO ] Invariant cache hit.
[2025-06-01 07:14:41] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:14:41] [INFO ] [Real]Absence check using state equation in 19 ms returned sat
[2025-06-01 07:14:41] [INFO ] State equation strengthened by 8 read => feed constraints.
[2025-06-01 07:14:41] [INFO ] [Real]Added 8 Read/Feed constraints in 3 ms returned sat
[2025-06-01 07:14:41] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:14:41] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:14:41] [INFO ] [Nat]Absence check using state equation in 17 ms returned sat
[2025-06-01 07:14:41] [INFO ] [Nat]Added 8 Read/Feed constraints in 2 ms returned sat
[2025-06-01 07:14:41] [INFO ] Computed and/alt/rep : 24/100/22 causal constraints (skipped 20 transitions) in 6 ms.
[2025-06-01 07:14:41] [INFO ] Deduced a trap composed of 8 places in 40 ms of which 1 ms to minimize.
[2025-06-01 07:14:41] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 61 ms
[2025-06-01 07:14:41] [INFO ] Added : 4 causal constraints over 2 iterations in 82 ms. Result :sat
Minimization took 10 ms.
[2025-06-01 07:14:41] [INFO ] [Real]Absence check using 3 positive place invariants in 16 ms returned sat
[2025-06-01 07:14:41] [INFO ] [Real]Absence check using state equation in 31 ms returned sat
[2025-06-01 07:14:41] [INFO ] [Real]Added 8 Read/Feed constraints in 2 ms returned sat
[2025-06-01 07:14:41] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:14:41] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:14:41] [INFO ] [Nat]Absence check using state equation in 16 ms returned sat
[2025-06-01 07:14:41] [INFO ] [Nat]Added 8 Read/Feed constraints in 2 ms returned sat
[2025-06-01 07:14:41] [INFO ] Deduced a trap composed of 8 places in 49 ms of which 1 ms to minimize.
[2025-06-01 07:14:41] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 55 ms
[2025-06-01 07:14:41] [INFO ] Computed and/alt/rep : 24/100/22 causal constraints (skipped 20 transitions) in 5 ms.
[2025-06-01 07:14:41] [INFO ] Added : 19 causal constraints over 5 iterations in 38 ms. Result :sat
Minimization took 14 ms.
[2025-06-01 07:14:41] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:14:41] [INFO ] [Real]Absence check using state equation in 14 ms returned sat
[2025-06-01 07:14:41] [INFO ] [Real]Added 8 Read/Feed constraints in 2 ms returned sat
[2025-06-01 07:14:41] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:14:41] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:14:41] [INFO ] [Nat]Absence check using state equation in 17 ms returned sat
[2025-06-01 07:14:41] [INFO ] [Nat]Added 8 Read/Feed constraints in 2 ms returned sat
[2025-06-01 07:14:41] [INFO ] Deduced a trap composed of 7 places in 38 ms of which 1 ms to minimize.
[2025-06-01 07:14:41] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 43 ms
[2025-06-01 07:14:41] [INFO ] Computed and/alt/rep : 24/100/22 causal constraints (skipped 20 transitions) in 5 ms.
[2025-06-01 07:14:41] [INFO ] Added : 13 causal constraints over 3 iterations in 25 ms. Result :sat
Minimization took 13 ms.
[2025-06-01 07:14:41] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:14:41] [INFO ] [Real]Absence check using state equation in 21 ms returned sat
[2025-06-01 07:14:41] [INFO ] [Real]Added 8 Read/Feed constraints in 2 ms returned sat
[2025-06-01 07:14:41] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:14:42] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:14:42] [INFO ] [Nat]Absence check using state equation in 21 ms returned sat
[2025-06-01 07:14:42] [INFO ] [Nat]Added 8 Read/Feed constraints in 2 ms returned sat
[2025-06-01 07:14:42] [INFO ] Computed and/alt/rep : 24/100/22 causal constraints (skipped 20 transitions) in 6 ms.
[2025-06-01 07:14:42] [INFO ] Deduced a trap composed of 8 places in 29 ms of which 1 ms to minimize.
[2025-06-01 07:14:42] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 36 ms
[2025-06-01 07:14:42] [INFO ] Added : 4 causal constraints over 2 iterations in 62 ms. Result :sat
Minimization took 10 ms.
[2025-06-01 07:14:42] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:14:42] [INFO ] [Real]Absence check using state equation in 23 ms returned sat
[2025-06-01 07:14:42] [INFO ] [Real]Added 8 Read/Feed constraints in 2 ms returned sat
[2025-06-01 07:14:42] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:14:42] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:14:42] [INFO ] [Nat]Absence check using state equation in 20 ms returned sat
[2025-06-01 07:14:42] [INFO ] [Nat]Added 8 Read/Feed constraints in 2 ms returned sat
[2025-06-01 07:14:42] [INFO ] Deduced a trap composed of 10 places in 33 ms of which 1 ms to minimize.
[2025-06-01 07:14:42] [INFO ] Deduced a trap composed of 8 places in 34 ms of which 1 ms to minimize.
[2025-06-01 07:14:42] [INFO ] Deduced a trap composed of 8 places in 30 ms of which 1 ms to minimize.
[2025-06-01 07:14:42] [INFO ] Deduced a trap composed of 7 places in 41 ms of which 1 ms to minimize.
[2025-06-01 07:14:42] [INFO ] Trap strengthening (SAT) tested/added 5/4 trap constraints in 158 ms
[2025-06-01 07:14:42] [INFO ] Computed and/alt/rep : 24/100/22 causal constraints (skipped 20 transitions) in 6 ms.
[2025-06-01 07:14:42] [INFO ] Added : 20 causal constraints over 5 iterations in 49 ms. Result :sat
Minimization took 15 ms.
[2025-06-01 07:14:42] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:14:42] [INFO ] [Real]Absence check using state equation in 19 ms returned sat
[2025-06-01 07:14:42] [INFO ] [Real]Added 8 Read/Feed constraints in 3 ms returned sat
[2025-06-01 07:14:42] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:14:42] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:14:42] [INFO ] [Nat]Absence check using state equation in 24 ms returned sat
[2025-06-01 07:14:42] [INFO ] [Nat]Added 8 Read/Feed constraints in 3 ms returned sat
[2025-06-01 07:14:42] [INFO ] Deduced a trap composed of 6 places in 34 ms of which 1 ms to minimize.
[2025-06-01 07:14:42] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 42 ms
[2025-06-01 07:14:42] [INFO ] Computed and/alt/rep : 24/100/22 causal constraints (skipped 20 transitions) in 11 ms.
[2025-06-01 07:14:42] [INFO ] Added : 15 causal constraints over 5 iterations in 53 ms. Result :sat
Minimization took 13 ms.
[2025-06-01 07:14:42] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:14:42] [INFO ] [Real]Absence check using state equation in 22 ms returned sat
[2025-06-01 07:14:42] [INFO ] [Real]Added 8 Read/Feed constraints in 4 ms returned sat
[2025-06-01 07:14:42] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:14:42] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:14:42] [INFO ] [Nat]Absence check using state equation in 28 ms returned sat
[2025-06-01 07:14:42] [INFO ] [Nat]Added 8 Read/Feed constraints in 3 ms returned sat
[2025-06-01 07:14:42] [INFO ] Deduced a trap composed of 6 places in 33 ms of which 1 ms to minimize.
[2025-06-01 07:14:42] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 39 ms
[2025-06-01 07:14:42] [INFO ] Computed and/alt/rep : 24/100/22 causal constraints (skipped 20 transitions) in 5 ms.
[2025-06-01 07:14:42] [INFO ] Added : 15 causal constraints over 5 iterations in 42 ms. Result :sat
Minimization took 13 ms.
[2025-06-01 07:14:42] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:14:42] [INFO ] [Real]Absence check using state equation in 25 ms returned sat
[2025-06-01 07:14:42] [INFO ] [Real]Added 8 Read/Feed constraints in 5 ms returned sat
[2025-06-01 07:14:42] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:14:43] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:14:43] [INFO ] [Nat]Absence check using state equation in 20 ms returned sat
[2025-06-01 07:14:43] [INFO ] [Nat]Added 8 Read/Feed constraints in 2 ms returned sat
[2025-06-01 07:14:43] [INFO ] Deduced a trap composed of 8 places in 33 ms of which 1 ms to minimize.
[2025-06-01 07:14:43] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 39 ms
[2025-06-01 07:14:43] [INFO ] Computed and/alt/rep : 24/100/22 causal constraints (skipped 20 transitions) in 7 ms.
[2025-06-01 07:14:43] [INFO ] Added : 15 causal constraints over 5 iterations in 47 ms. Result :sat
Minimization took 13 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[5641, 253, 3546, 5647, 147, 3153, 941, 937] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[5641, 253, 98577, 5647, 147, 3153, 941, 937] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
Support contains 8 out of 32 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 32/32 places, 63/63 transitions.
Applied a total of 0 rules in 7 ms. Remains 32 /32 variables (removed 0) and now considering 63/63 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 7 ms. Remains : 32/32 places, 63/63 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 32/32 places, 63/63 transitions.
Applied a total of 0 rules in 3 ms. Remains 32 /32 variables (removed 0) and now considering 63/63 (removed 0) transitions.
[2025-06-01 07:15:03] [INFO ] Flow matrix only has 44 transitions (discarded 19 similar events)
[2025-06-01 07:15:03] [INFO ] Invariant cache hit.
[2025-06-01 07:15:03] [INFO ] Implicit Places using invariants in 92 ms returned []
[2025-06-01 07:15:03] [INFO ] Flow matrix only has 44 transitions (discarded 19 similar events)
[2025-06-01 07:15:03] [INFO ] Invariant cache hit.
[2025-06-01 07:15:03] [INFO ] State equation strengthened by 8 read => feed constraints.
[2025-06-01 07:15:03] [INFO ] Implicit Places using invariants and state equation in 100 ms returned []
Implicit Place search using SMT with State Equation took 196 ms to find 0 implicit places.
[2025-06-01 07:15:03] [INFO ] Redundant transitions in 2 ms returned []
Running 61 sub problems to find dead transitions.
[2025-06-01 07:15:03] [INFO ] Flow matrix only has 44 transitions (discarded 19 similar events)
[2025-06-01 07:15:03] [INFO ] Invariant cache hit.
[2025-06-01 07:15:03] [INFO ] State equation strengthened by 8 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/31 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 61 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/31 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 61 unsolved
At refinement iteration 2 (OVERLAPS) 44/75 variables, 31/34 constraints. Problems are: Problem set: 0 solved, 61 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/75 variables, 8/42 constraints. Problems are: Problem set: 0 solved, 61 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/75 variables, 0/42 constraints. Problems are: Problem set: 0 solved, 61 unsolved
At refinement iteration 5 (OVERLAPS) 1/76 variables, 1/43 constraints. Problems are: Problem set: 0 solved, 61 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/76 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 61 unsolved
At refinement iteration 7 (OVERLAPS) 0/76 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 61 unsolved
No progress, stopping.
After SMT solving in domain Real declared 76/76 variables, and 43 constraints, problems are : Problem set: 0 solved, 61 unsolved in 1415 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 32/32 constraints, ReadFeed: 8/8 constraints, PredecessorRefiner: 61/61 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 61 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/31 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 61 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/31 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 61 unsolved
At refinement iteration 2 (OVERLAPS) 44/75 variables, 31/34 constraints. Problems are: Problem set: 0 solved, 61 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/75 variables, 8/42 constraints. Problems are: Problem set: 0 solved, 61 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/75 variables, 4/46 constraints. Problems are: Problem set: 0 solved, 61 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/75 variables, 0/46 constraints. Problems are: Problem set: 0 solved, 61 unsolved
At refinement iteration 6 (OVERLAPS) 1/76 variables, 1/47 constraints. Problems are: Problem set: 0 solved, 61 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/76 variables, 57/104 constraints. Problems are: Problem set: 0 solved, 61 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/76 variables, 0/104 constraints. Problems are: Problem set: 0 solved, 61 unsolved
At refinement iteration 9 (OVERLAPS) 0/76 variables, 0/104 constraints. Problems are: Problem set: 0 solved, 61 unsolved
No progress, stopping.
After SMT solving in domain Int declared 76/76 variables, and 104 constraints, problems are : Problem set: 0 solved, 61 unsolved in 1816 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 32/32 constraints, ReadFeed: 8/8 constraints, PredecessorRefiner: 61/61 constraints, Known Traps: 0/0 constraints]
After SMT, in 3373ms problems are : Problem set: 0 solved, 61 unsolved
Search for dead transitions found 0 dead transitions in 3388ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 3613 ms. Remains : 32/32 places, 63/63 transitions.
[2025-06-01 07:15:06] [INFO ] Flow matrix only has 44 transitions (discarded 19 similar events)
Found an invariant !
This invariant on transitions {3=1, 5=1, 22=1, 33=1, 42=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {5=1, 22=1, 33=1, 42=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 142 ms. (steps per millisecond=70 ) properties (out of 8) seen :[8, 95, 136, 6, 11, 14, 6, 3]
Current structural bounds on expressions (after cover walk) : Max Seen:[5641, 253, 98577, 5647, 147, 3153, 941, 937] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 07:15:07] [INFO ] Flow matrix only has 44 transitions (discarded 19 similar events)
[2025-06-01 07:15:07] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[5641, 253, 98577, 5647, 147, 3153, 941, 937] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000089 steps (2 resets) in 725 ms. (1377 steps per ms)
BEST_FIRST walk for 8000007 steps (16 resets) in 3640 ms. (2197 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[5641, 253, 98577, 5647, 147, 3184, 941, 937] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 07:15:11] [INFO ] Flow matrix only has 44 transitions (discarded 19 similar events)
[2025-06-01 07:15:11] [INFO ] Invariant cache hit.
[2025-06-01 07:15:11] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:15:11] [INFO ] [Real]Absence check using state equation in 23 ms returned sat
[2025-06-01 07:15:11] [INFO ] State equation strengthened by 8 read => feed constraints.
[2025-06-01 07:15:11] [INFO ] [Real]Added 8 Read/Feed constraints in 3 ms returned sat
[2025-06-01 07:15:11] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:15:11] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:15:11] [INFO ] [Nat]Absence check using state equation in 23 ms returned sat
[2025-06-01 07:15:11] [INFO ] [Nat]Added 8 Read/Feed constraints in 3 ms returned sat
[2025-06-01 07:15:11] [INFO ] Computed and/alt/rep : 24/100/22 causal constraints (skipped 20 transitions) in 8 ms.
[2025-06-01 07:15:11] [INFO ] Deduced a trap composed of 8 places in 47 ms of which 1 ms to minimize.
[2025-06-01 07:15:11] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 57 ms
[2025-06-01 07:15:11] [INFO ] Added : 4 causal constraints over 2 iterations in 90 ms. Result :sat
Minimization took 17 ms.
[2025-06-01 07:15:11] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:15:11] [INFO ] [Real]Absence check using state equation in 19 ms returned sat
[2025-06-01 07:15:11] [INFO ] [Real]Added 8 Read/Feed constraints in 3 ms returned sat
[2025-06-01 07:15:11] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:15:11] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:15:11] [INFO ] [Nat]Absence check using state equation in 24 ms returned sat
[2025-06-01 07:15:11] [INFO ] [Nat]Added 8 Read/Feed constraints in 4 ms returned sat
[2025-06-01 07:15:11] [INFO ] Deduced a trap composed of 8 places in 52 ms of which 1 ms to minimize.
[2025-06-01 07:15:11] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 60 ms
[2025-06-01 07:15:11] [INFO ] Computed and/alt/rep : 24/100/22 causal constraints (skipped 20 transitions) in 7 ms.
[2025-06-01 07:15:12] [INFO ] Added : 19 causal constraints over 5 iterations in 62 ms. Result :sat
Minimization took 25 ms.
[2025-06-01 07:15:12] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:15:12] [INFO ] [Real]Absence check using state equation in 22 ms returned sat
[2025-06-01 07:15:12] [INFO ] [Real]Added 8 Read/Feed constraints in 5 ms returned sat
[2025-06-01 07:15:12] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:15:12] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:15:12] [INFO ] [Nat]Absence check using state equation in 26 ms returned sat
[2025-06-01 07:15:12] [INFO ] [Nat]Added 8 Read/Feed constraints in 3 ms returned sat
[2025-06-01 07:15:12] [INFO ] Deduced a trap composed of 7 places in 53 ms of which 1 ms to minimize.
[2025-06-01 07:15:12] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 64 ms
[2025-06-01 07:15:12] [INFO ] Computed and/alt/rep : 24/100/22 causal constraints (skipped 20 transitions) in 7 ms.
[2025-06-01 07:15:12] [INFO ] Added : 13 causal constraints over 3 iterations in 39 ms. Result :sat
Minimization took 21 ms.
[2025-06-01 07:15:12] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:15:12] [INFO ] [Real]Absence check using state equation in 25 ms returned sat
[2025-06-01 07:15:12] [INFO ] [Real]Added 8 Read/Feed constraints in 3 ms returned sat
[2025-06-01 07:15:12] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:15:12] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:15:12] [INFO ] [Nat]Absence check using state equation in 26 ms returned sat
[2025-06-01 07:15:12] [INFO ] [Nat]Added 8 Read/Feed constraints in 2 ms returned sat
[2025-06-01 07:15:12] [INFO ] Computed and/alt/rep : 24/100/22 causal constraints (skipped 20 transitions) in 8 ms.
[2025-06-01 07:15:12] [INFO ] Deduced a trap composed of 8 places in 48 ms of which 2 ms to minimize.
[2025-06-01 07:15:12] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 58 ms
[2025-06-01 07:15:12] [INFO ] Added : 4 causal constraints over 2 iterations in 93 ms. Result :sat
Minimization took 17 ms.
[2025-06-01 07:15:12] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:15:12] [INFO ] [Real]Absence check using state equation in 27 ms returned sat
[2025-06-01 07:15:12] [INFO ] [Real]Added 8 Read/Feed constraints in 3 ms returned sat
[2025-06-01 07:15:12] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:15:12] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:15:12] [INFO ] [Nat]Absence check using state equation in 24 ms returned sat
[2025-06-01 07:15:12] [INFO ] [Nat]Added 8 Read/Feed constraints in 4 ms returned sat
[2025-06-01 07:15:12] [INFO ] Deduced a trap composed of 10 places in 42 ms of which 1 ms to minimize.
[2025-06-01 07:15:12] [INFO ] Deduced a trap composed of 8 places in 47 ms of which 4 ms to minimize.
[2025-06-01 07:15:12] [INFO ] Deduced a trap composed of 8 places in 45 ms of which 4 ms to minimize.
[2025-06-01 07:15:12] [INFO ] Deduced a trap composed of 7 places in 37 ms of which 1 ms to minimize.
[2025-06-01 07:15:12] [INFO ] Trap strengthening (SAT) tested/added 5/4 trap constraints in 195 ms
[2025-06-01 07:15:12] [INFO ] Computed and/alt/rep : 24/100/22 causal constraints (skipped 20 transitions) in 7 ms.
[2025-06-01 07:15:12] [INFO ] Added : 20 causal constraints over 5 iterations in 73 ms. Result :sat
Minimization took 25 ms.
[2025-06-01 07:15:13] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:15:13] [INFO ] [Real]Absence check using state equation in 24 ms returned sat
[2025-06-01 07:15:13] [INFO ] [Real]Added 8 Read/Feed constraints in 5 ms returned sat
[2025-06-01 07:15:13] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:15:13] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:15:13] [INFO ] [Nat]Absence check using state equation in 22 ms returned sat
[2025-06-01 07:15:13] [INFO ] [Nat]Added 8 Read/Feed constraints in 2 ms returned sat
[2025-06-01 07:15:13] [INFO ] Deduced a trap composed of 6 places in 49 ms of which 1 ms to minimize.
[2025-06-01 07:15:13] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 56 ms
[2025-06-01 07:15:13] [INFO ] Computed and/alt/rep : 24/100/22 causal constraints (skipped 20 transitions) in 7 ms.
[2025-06-01 07:15:13] [INFO ] Added : 15 causal constraints over 5 iterations in 53 ms. Result :sat
Minimization took 20 ms.
[2025-06-01 07:15:13] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:15:13] [INFO ] [Real]Absence check using state equation in 26 ms returned sat
[2025-06-01 07:15:13] [INFO ] [Real]Added 8 Read/Feed constraints in 4 ms returned sat
[2025-06-01 07:15:13] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:15:13] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:15:13] [INFO ] [Nat]Absence check using state equation in 23 ms returned sat
[2025-06-01 07:15:13] [INFO ] [Nat]Added 8 Read/Feed constraints in 4 ms returned sat
[2025-06-01 07:15:13] [INFO ] Deduced a trap composed of 6 places in 57 ms of which 1 ms to minimize.
[2025-06-01 07:15:13] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 67 ms
[2025-06-01 07:15:13] [INFO ] Computed and/alt/rep : 24/100/22 causal constraints (skipped 20 transitions) in 7 ms.
[2025-06-01 07:15:13] [INFO ] Added : 15 causal constraints over 5 iterations in 53 ms. Result :sat
Minimization took 20 ms.
[2025-06-01 07:15:13] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:15:13] [INFO ] [Real]Absence check using state equation in 26 ms returned sat
[2025-06-01 07:15:13] [INFO ] [Real]Added 8 Read/Feed constraints in 5 ms returned sat
[2025-06-01 07:15:13] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:15:13] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:15:13] [INFO ] [Nat]Absence check using state equation in 27 ms returned sat
[2025-06-01 07:15:13] [INFO ] [Nat]Added 8 Read/Feed constraints in 4 ms returned sat
[2025-06-01 07:15:13] [INFO ] Deduced a trap composed of 8 places in 42 ms of which 2 ms to minimize.
[2025-06-01 07:15:13] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 51 ms
[2025-06-01 07:15:13] [INFO ] Computed and/alt/rep : 24/100/22 causal constraints (skipped 20 transitions) in 7 ms.
[2025-06-01 07:15:13] [INFO ] Added : 15 causal constraints over 5 iterations in 66 ms. Result :sat
Minimization took 20 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[5641, 253, 98577, 5647, 147, 3184, 941, 937] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[5641, 253, 141709, 5647, 147, 3184, 941, 937] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
Support contains 8 out of 32 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 32/32 places, 63/63 transitions.
Applied a total of 0 rules in 6 ms. Remains 32 /32 variables (removed 0) and now considering 63/63 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 9 ms. Remains : 32/32 places, 63/63 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 32/32 places, 63/63 transitions.
Applied a total of 0 rules in 7 ms. Remains 32 /32 variables (removed 0) and now considering 63/63 (removed 0) transitions.
[2025-06-01 07:15:59] [INFO ] Flow matrix only has 44 transitions (discarded 19 similar events)
[2025-06-01 07:15:59] [INFO ] Invariant cache hit.
[2025-06-01 07:16:00] [INFO ] Implicit Places using invariants in 74 ms returned []
[2025-06-01 07:16:00] [INFO ] Flow matrix only has 44 transitions (discarded 19 similar events)
[2025-06-01 07:16:00] [INFO ] Invariant cache hit.
[2025-06-01 07:16:00] [INFO ] State equation strengthened by 8 read => feed constraints.
[2025-06-01 07:16:00] [INFO ] Implicit Places using invariants and state equation in 66 ms returned []
Implicit Place search using SMT with State Equation took 142 ms to find 0 implicit places.
[2025-06-01 07:16:00] [INFO ] Redundant transitions in 1 ms returned []
Running 61 sub problems to find dead transitions.
[2025-06-01 07:16:00] [INFO ] Flow matrix only has 44 transitions (discarded 19 similar events)
[2025-06-01 07:16:00] [INFO ] Invariant cache hit.
[2025-06-01 07:16:00] [INFO ] State equation strengthened by 8 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/31 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 61 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/31 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 61 unsolved
At refinement iteration 2 (OVERLAPS) 44/75 variables, 31/34 constraints. Problems are: Problem set: 0 solved, 61 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/75 variables, 8/42 constraints. Problems are: Problem set: 0 solved, 61 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/75 variables, 0/42 constraints. Problems are: Problem set: 0 solved, 61 unsolved
At refinement iteration 5 (OVERLAPS) 1/76 variables, 1/43 constraints. Problems are: Problem set: 0 solved, 61 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/76 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 61 unsolved
At refinement iteration 7 (OVERLAPS) 0/76 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 61 unsolved
No progress, stopping.
After SMT solving in domain Real declared 76/76 variables, and 43 constraints, problems are : Problem set: 0 solved, 61 unsolved in 1195 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 32/32 constraints, ReadFeed: 8/8 constraints, PredecessorRefiner: 61/61 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 61 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/31 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 61 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/31 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 61 unsolved
At refinement iteration 2 (OVERLAPS) 44/75 variables, 31/34 constraints. Problems are: Problem set: 0 solved, 61 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/75 variables, 8/42 constraints. Problems are: Problem set: 0 solved, 61 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/75 variables, 4/46 constraints. Problems are: Problem set: 0 solved, 61 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/75 variables, 0/46 constraints. Problems are: Problem set: 0 solved, 61 unsolved
At refinement iteration 6 (OVERLAPS) 1/76 variables, 1/47 constraints. Problems are: Problem set: 0 solved, 61 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/76 variables, 57/104 constraints. Problems are: Problem set: 0 solved, 61 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/76 variables, 0/104 constraints. Problems are: Problem set: 0 solved, 61 unsolved
At refinement iteration 9 (OVERLAPS) 0/76 variables, 0/104 constraints. Problems are: Problem set: 0 solved, 61 unsolved
No progress, stopping.
After SMT solving in domain Int declared 76/76 variables, and 104 constraints, problems are : Problem set: 0 solved, 61 unsolved in 1613 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 32/32 constraints, ReadFeed: 8/8 constraints, PredecessorRefiner: 61/61 constraints, Known Traps: 0/0 constraints]
After SMT, in 2848ms problems are : Problem set: 0 solved, 61 unsolved
Search for dead transitions found 0 dead transitions in 2850ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 3015 ms. Remains : 32/32 places, 63/63 transitions.
[2025-06-01 07:16:02] [INFO ] Flow matrix only has 44 transitions (discarded 19 similar events)
Found an invariant !
This invariant on transitions {3=1, 5=1, 22=1, 33=1, 42=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {5=1, 22=1, 33=1, 42=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 41 ms. (steps per millisecond=243 ) properties (out of 8) seen :[7, 80, 134, 11, 11, 28, 5, 3]
Current structural bounds on expressions (after cover walk) : Max Seen:[5641, 253, 141709, 5647, 147, 3184, 941, 937] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 07:16:03] [INFO ] Flow matrix only has 44 transitions (discarded 19 similar events)
[2025-06-01 07:16:03] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[5641, 253, 141709, 5647, 147, 3184, 941, 937] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000110 steps (2 resets) in 698 ms. (1430 steps per ms)
BEST_FIRST walk for 8000007 steps (16 resets) in 3350 ms. (2387 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[5651, 253, 141709, 5670, 147, 3184, 950, 937] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 07:16:07] [INFO ] Flow matrix only has 44 transitions (discarded 19 similar events)
[2025-06-01 07:16:07] [INFO ] Invariant cache hit.
[2025-06-01 07:16:07] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:16:07] [INFO ] [Real]Absence check using state equation in 22 ms returned sat
[2025-06-01 07:16:07] [INFO ] State equation strengthened by 8 read => feed constraints.
[2025-06-01 07:16:07] [INFO ] [Real]Added 8 Read/Feed constraints in 2 ms returned sat
[2025-06-01 07:16:07] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:16:07] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:16:07] [INFO ] [Nat]Absence check using state equation in 15 ms returned sat
[2025-06-01 07:16:07] [INFO ] [Nat]Added 8 Read/Feed constraints in 1 ms returned sat
[2025-06-01 07:16:07] [INFO ] Computed and/alt/rep : 24/100/22 causal constraints (skipped 20 transitions) in 4 ms.
[2025-06-01 07:16:07] [INFO ] Deduced a trap composed of 8 places in 46 ms of which 6 ms to minimize.
[2025-06-01 07:16:07] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 54 ms
[2025-06-01 07:16:07] [INFO ] Added : 4 causal constraints over 2 iterations in 75 ms. Result :sat
Minimization took 10 ms.
[2025-06-01 07:16:07] [INFO ] [Real]Absence check using 3 positive place invariants in 1 ms returned sat
[2025-06-01 07:16:07] [INFO ] [Real]Absence check using state equation in 22 ms returned sat
[2025-06-01 07:16:07] [INFO ] [Real]Added 8 Read/Feed constraints in 3 ms returned sat
[2025-06-01 07:16:07] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:16:07] [INFO ] [Nat]Absence check using 3 positive place invariants in 1 ms returned sat
[2025-06-01 07:16:07] [INFO ] [Nat]Absence check using state equation in 28 ms returned sat
[2025-06-01 07:16:07] [INFO ] [Nat]Added 8 Read/Feed constraints in 1 ms returned sat
[2025-06-01 07:16:07] [INFO ] Deduced a trap composed of 8 places in 39 ms of which 1 ms to minimize.
[2025-06-01 07:16:07] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 44 ms
[2025-06-01 07:16:07] [INFO ] Computed and/alt/rep : 24/100/22 causal constraints (skipped 20 transitions) in 3 ms.
[2025-06-01 07:16:07] [INFO ] Added : 19 causal constraints over 5 iterations in 37 ms. Result :sat
Minimization took 14 ms.
[2025-06-01 07:16:07] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:16:07] [INFO ] [Real]Absence check using state equation in 18 ms returned sat
[2025-06-01 07:16:07] [INFO ] [Real]Added 8 Read/Feed constraints in 3 ms returned sat
[2025-06-01 07:16:07] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:16:07] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:16:07] [INFO ] [Nat]Absence check using state equation in 19 ms returned sat
[2025-06-01 07:16:07] [INFO ] [Nat]Added 8 Read/Feed constraints in 3 ms returned sat
[2025-06-01 07:16:07] [INFO ] Deduced a trap composed of 7 places in 41 ms of which 1 ms to minimize.
[2025-06-01 07:16:07] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 48 ms
[2025-06-01 07:16:07] [INFO ] Computed and/alt/rep : 24/100/22 causal constraints (skipped 20 transitions) in 7 ms.
[2025-06-01 07:16:07] [INFO ] Added : 13 causal constraints over 3 iterations in 32 ms. Result :sat
Minimization took 13 ms.
[2025-06-01 07:16:07] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:16:07] [INFO ] [Real]Absence check using state equation in 20 ms returned sat
[2025-06-01 07:16:07] [INFO ] [Real]Added 8 Read/Feed constraints in 2 ms returned sat
[2025-06-01 07:16:07] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:16:07] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:16:07] [INFO ] [Nat]Absence check using state equation in 19 ms returned sat
[2025-06-01 07:16:07] [INFO ] [Nat]Added 8 Read/Feed constraints in 2 ms returned sat
[2025-06-01 07:16:07] [INFO ] Computed and/alt/rep : 24/100/22 causal constraints (skipped 20 transitions) in 5 ms.
[2025-06-01 07:16:07] [INFO ] Deduced a trap composed of 8 places in 42 ms of which 1 ms to minimize.
[2025-06-01 07:16:07] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 51 ms
[2025-06-01 07:16:07] [INFO ] Added : 4 causal constraints over 2 iterations in 77 ms. Result :sat
Minimization took 16 ms.
[2025-06-01 07:16:07] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:16:07] [INFO ] [Real]Absence check using state equation in 23 ms returned sat
[2025-06-01 07:16:07] [INFO ] [Real]Added 8 Read/Feed constraints in 3 ms returned sat
[2025-06-01 07:16:07] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:16:08] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:16:08] [INFO ] [Nat]Absence check using state equation in 25 ms returned sat
[2025-06-01 07:16:08] [INFO ] [Nat]Added 8 Read/Feed constraints in 4 ms returned sat
[2025-06-01 07:16:08] [INFO ] Deduced a trap composed of 10 places in 43 ms of which 2 ms to minimize.
[2025-06-01 07:16:08] [INFO ] Deduced a trap composed of 8 places in 55 ms of which 1 ms to minimize.
[2025-06-01 07:16:08] [INFO ] Deduced a trap composed of 8 places in 37 ms of which 1 ms to minimize.
[2025-06-01 07:16:08] [INFO ] Deduced a trap composed of 7 places in 42 ms of which 2 ms to minimize.
[2025-06-01 07:16:08] [INFO ] Trap strengthening (SAT) tested/added 5/4 trap constraints in 199 ms
[2025-06-01 07:16:08] [INFO ] Computed and/alt/rep : 24/100/22 causal constraints (skipped 20 transitions) in 7 ms.
[2025-06-01 07:16:08] [INFO ] Added : 20 causal constraints over 5 iterations in 59 ms. Result :sat
Minimization took 24 ms.
[2025-06-01 07:16:08] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:16:08] [INFO ] [Real]Absence check using state equation in 25 ms returned sat
[2025-06-01 07:16:08] [INFO ] [Real]Added 8 Read/Feed constraints in 5 ms returned sat
[2025-06-01 07:16:08] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:16:08] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:16:08] [INFO ] [Nat]Absence check using state equation in 19 ms returned sat
[2025-06-01 07:16:08] [INFO ] [Nat]Added 8 Read/Feed constraints in 2 ms returned sat
[2025-06-01 07:16:08] [INFO ] Deduced a trap composed of 6 places in 33 ms of which 1 ms to minimize.
[2025-06-01 07:16:08] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 40 ms
[2025-06-01 07:16:08] [INFO ] Computed and/alt/rep : 24/100/22 causal constraints (skipped 20 transitions) in 6 ms.
[2025-06-01 07:16:08] [INFO ] Added : 15 causal constraints over 5 iterations in 39 ms. Result :sat
Minimization took 12 ms.
[2025-06-01 07:16:08] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:16:08] [INFO ] [Real]Absence check using state equation in 20 ms returned sat
[2025-06-01 07:16:08] [INFO ] [Real]Added 8 Read/Feed constraints in 3 ms returned sat
[2025-06-01 07:16:08] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:16:08] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:16:08] [INFO ] [Nat]Absence check using state equation in 18 ms returned sat
[2025-06-01 07:16:08] [INFO ] [Nat]Added 8 Read/Feed constraints in 2 ms returned sat
[2025-06-01 07:16:08] [INFO ] Deduced a trap composed of 6 places in 40 ms of which 2 ms to minimize.
[2025-06-01 07:16:08] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 47 ms
[2025-06-01 07:16:08] [INFO ] Computed and/alt/rep : 24/100/22 causal constraints (skipped 20 transitions) in 6 ms.
[2025-06-01 07:16:08] [INFO ] Added : 15 causal constraints over 5 iterations in 39 ms. Result :sat
Minimization took 12 ms.
[2025-06-01 07:16:08] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:16:08] [INFO ] [Real]Absence check using state equation in 24 ms returned sat
[2025-06-01 07:16:08] [INFO ] [Real]Added 8 Read/Feed constraints in 4 ms returned sat
[2025-06-01 07:16:08] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:16:08] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:16:08] [INFO ] [Nat]Absence check using state equation in 19 ms returned sat
[2025-06-01 07:16:08] [INFO ] [Nat]Added 8 Read/Feed constraints in 3 ms returned sat
[2025-06-01 07:16:08] [INFO ] Deduced a trap composed of 8 places in 31 ms of which 1 ms to minimize.
[2025-06-01 07:16:08] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 38 ms
[2025-06-01 07:16:08] [INFO ] Computed and/alt/rep : 24/100/22 causal constraints (skipped 20 transitions) in 6 ms.
[2025-06-01 07:16:08] [INFO ] Added : 15 causal constraints over 5 iterations in 39 ms. Result :sat
Minimization took 12 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[5651, 253, 141709, 5670, 147, 3184, 950, 937] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[5651, 253, 141709, 5670, 147, 3184, 950, 937] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
Support contains 8 out of 32 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 32/32 places, 63/63 transitions.
Applied a total of 0 rules in 4 ms. Remains 32 /32 variables (removed 0) and now considering 63/63 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 5 ms. Remains : 32/32 places, 63/63 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 32/32 places, 63/63 transitions.
Applied a total of 0 rules in 10 ms. Remains 32 /32 variables (removed 0) and now considering 63/63 (removed 0) transitions.
[2025-06-01 07:16:54] [INFO ] Flow matrix only has 44 transitions (discarded 19 similar events)
[2025-06-01 07:16:54] [INFO ] Invariant cache hit.
[2025-06-01 07:16:54] [INFO ] Implicit Places using invariants in 60 ms returned []
[2025-06-01 07:16:54] [INFO ] Flow matrix only has 44 transitions (discarded 19 similar events)
[2025-06-01 07:16:54] [INFO ] Invariant cache hit.
[2025-06-01 07:16:54] [INFO ] State equation strengthened by 8 read => feed constraints.
[2025-06-01 07:16:54] [INFO ] Implicit Places using invariants and state equation in 70 ms returned []
Implicit Place search using SMT with State Equation took 166 ms to find 0 implicit places.
[2025-06-01 07:16:54] [INFO ] Redundant transitions in 0 ms returned []
Running 61 sub problems to find dead transitions.
[2025-06-01 07:16:54] [INFO ] Flow matrix only has 44 transitions (discarded 19 similar events)
[2025-06-01 07:16:54] [INFO ] Invariant cache hit.
[2025-06-01 07:16:54] [INFO ] State equation strengthened by 8 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/31 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 61 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/31 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 61 unsolved
At refinement iteration 2 (OVERLAPS) 44/75 variables, 31/34 constraints. Problems are: Problem set: 0 solved, 61 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/75 variables, 8/42 constraints. Problems are: Problem set: 0 solved, 61 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/75 variables, 0/42 constraints. Problems are: Problem set: 0 solved, 61 unsolved
At refinement iteration 5 (OVERLAPS) 1/76 variables, 1/43 constraints. Problems are: Problem set: 0 solved, 61 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/76 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 61 unsolved
At refinement iteration 7 (OVERLAPS) 0/76 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 61 unsolved
No progress, stopping.
After SMT solving in domain Real declared 76/76 variables, and 43 constraints, problems are : Problem set: 0 solved, 61 unsolved in 1469 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 32/32 constraints, ReadFeed: 8/8 constraints, PredecessorRefiner: 61/61 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 61 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/31 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 61 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/31 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 61 unsolved
At refinement iteration 2 (OVERLAPS) 44/75 variables, 31/34 constraints. Problems are: Problem set: 0 solved, 61 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/75 variables, 8/42 constraints. Problems are: Problem set: 0 solved, 61 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/75 variables, 4/46 constraints. Problems are: Problem set: 0 solved, 61 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/75 variables, 0/46 constraints. Problems are: Problem set: 0 solved, 61 unsolved
At refinement iteration 6 (OVERLAPS) 1/76 variables, 1/47 constraints. Problems are: Problem set: 0 solved, 61 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/76 variables, 57/104 constraints. Problems are: Problem set: 0 solved, 61 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/76 variables, 0/104 constraints. Problems are: Problem set: 0 solved, 61 unsolved
At refinement iteration 9 (OVERLAPS) 0/76 variables, 0/104 constraints. Problems are: Problem set: 0 solved, 61 unsolved
No progress, stopping.
After SMT solving in domain Int declared 76/76 variables, and 104 constraints, problems are : Problem set: 0 solved, 61 unsolved in 1732 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 32/32 constraints, ReadFeed: 8/8 constraints, PredecessorRefiner: 61/61 constraints, Known Traps: 0/0 constraints]
After SMT, in 3255ms problems are : Problem set: 0 solved, 61 unsolved
Search for dead transitions found 0 dead transitions in 3262ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 3450 ms. Remains : 32/32 places, 63/63 transitions.
[2025-06-01 07:16:57] [INFO ] Flow matrix only has 44 transitions (discarded 19 similar events)
Found an invariant !
This invariant on transitions {3=1, 5=1, 22=1, 33=1, 42=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {5=1, 22=1, 33=1, 42=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 39 ms. (steps per millisecond=256 ) properties (out of 8) seen :[6, 109, 134, 7, 13, 22, 6, 3]
Current structural bounds on expressions (after cover walk) : Max Seen:[5651, 253, 141709, 5670, 147, 3184, 950, 937] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 07:16:58] [INFO ] Flow matrix only has 44 transitions (discarded 19 similar events)
[2025-06-01 07:16:58] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[5651, 253, 141709, 5670, 147, 3184, 950, 937] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 734 ms. (1360 steps per ms)
BEST_FIRST walk for 8000008 steps (16 resets) in 4112 ms. (1945 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[5651, 253, 141709, 5670, 147, 3184, 950, 937] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 07:17:02] [INFO ] Flow matrix only has 44 transitions (discarded 19 similar events)
[2025-06-01 07:17:02] [INFO ] Invariant cache hit.
[2025-06-01 07:17:02] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:17:02] [INFO ] [Real]Absence check using state equation in 15 ms returned sat
[2025-06-01 07:17:02] [INFO ] State equation strengthened by 8 read => feed constraints.
[2025-06-01 07:17:02] [INFO ] [Real]Added 8 Read/Feed constraints in 2 ms returned sat
[2025-06-01 07:17:02] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:17:03] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:17:03] [INFO ] [Nat]Absence check using state equation in 16 ms returned sat
[2025-06-01 07:17:03] [INFO ] [Nat]Added 8 Read/Feed constraints in 2 ms returned sat
[2025-06-01 07:17:03] [INFO ] Computed and/alt/rep : 24/100/22 causal constraints (skipped 20 transitions) in 4 ms.
[2025-06-01 07:17:03] [INFO ] Deduced a trap composed of 8 places in 44 ms of which 1 ms to minimize.
[2025-06-01 07:17:03] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 53 ms
[2025-06-01 07:17:03] [INFO ] Added : 4 causal constraints over 2 iterations in 73 ms. Result :sat
Minimization took 10 ms.
[2025-06-01 07:17:03] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:17:03] [INFO ] [Real]Absence check using state equation in 14 ms returned sat
[2025-06-01 07:17:03] [INFO ] [Real]Added 8 Read/Feed constraints in 2 ms returned sat
[2025-06-01 07:17:03] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:17:03] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:17:03] [INFO ] [Nat]Absence check using state equation in 14 ms returned sat
[2025-06-01 07:17:03] [INFO ] [Nat]Added 8 Read/Feed constraints in 1 ms returned sat
[2025-06-01 07:17:03] [INFO ] Deduced a trap composed of 8 places in 33 ms of which 1 ms to minimize.
[2025-06-01 07:17:03] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 42 ms
[2025-06-01 07:17:03] [INFO ] Computed and/alt/rep : 24/100/22 causal constraints (skipped 20 transitions) in 4 ms.
[2025-06-01 07:17:03] [INFO ] Added : 19 causal constraints over 5 iterations in 38 ms. Result :sat
Minimization took 15 ms.
[2025-06-01 07:17:03] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:17:03] [INFO ] [Real]Absence check using state equation in 14 ms returned sat
[2025-06-01 07:17:03] [INFO ] [Real]Added 8 Read/Feed constraints in 2 ms returned sat
[2025-06-01 07:17:03] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:17:03] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:17:03] [INFO ] [Nat]Absence check using state equation in 14 ms returned sat
[2025-06-01 07:17:03] [INFO ] [Nat]Added 8 Read/Feed constraints in 2 ms returned sat
[2025-06-01 07:17:03] [INFO ] Deduced a trap composed of 7 places in 32 ms of which 1 ms to minimize.
[2025-06-01 07:17:03] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 37 ms
[2025-06-01 07:17:03] [INFO ] Computed and/alt/rep : 24/100/22 causal constraints (skipped 20 transitions) in 3 ms.
[2025-06-01 07:17:03] [INFO ] Added : 13 causal constraints over 3 iterations in 24 ms. Result :sat
Minimization took 13 ms.
[2025-06-01 07:17:03] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:17:03] [INFO ] [Real]Absence check using state equation in 17 ms returned sat
[2025-06-01 07:17:03] [INFO ] [Real]Added 8 Read/Feed constraints in 2 ms returned sat
[2025-06-01 07:17:03] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:17:03] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:17:03] [INFO ] [Nat]Absence check using state equation in 18 ms returned sat
[2025-06-01 07:17:03] [INFO ] [Nat]Added 8 Read/Feed constraints in 2 ms returned sat
[2025-06-01 07:17:03] [INFO ] Computed and/alt/rep : 24/100/22 causal constraints (skipped 20 transitions) in 5 ms.
[2025-06-01 07:17:03] [INFO ] Deduced a trap composed of 8 places in 40 ms of which 1 ms to minimize.
[2025-06-01 07:17:03] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 47 ms
[2025-06-01 07:17:03] [INFO ] Added : 4 causal constraints over 2 iterations in 72 ms. Result :sat
Minimization took 10 ms.
[2025-06-01 07:17:03] [INFO ] [Real]Absence check using 3 positive place invariants in 1 ms returned sat
[2025-06-01 07:17:03] [INFO ] [Real]Absence check using state equation in 16 ms returned sat
[2025-06-01 07:17:03] [INFO ] [Real]Added 8 Read/Feed constraints in 2 ms returned sat
[2025-06-01 07:17:03] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:17:03] [INFO ] [Nat]Absence check using 3 positive place invariants in 1 ms returned sat
[2025-06-01 07:17:03] [INFO ] [Nat]Absence check using state equation in 15 ms returned sat
[2025-06-01 07:17:03] [INFO ] [Nat]Added 8 Read/Feed constraints in 2 ms returned sat
[2025-06-01 07:17:03] [INFO ] Deduced a trap composed of 10 places in 28 ms of which 1 ms to minimize.
[2025-06-01 07:17:03] [INFO ] Deduced a trap composed of 8 places in 28 ms of which 2 ms to minimize.
[2025-06-01 07:17:03] [INFO ] Deduced a trap composed of 8 places in 28 ms of which 1 ms to minimize.
[2025-06-01 07:17:03] [INFO ] Deduced a trap composed of 7 places in 30 ms of which 1 ms to minimize.
[2025-06-01 07:17:03] [INFO ] Trap strengthening (SAT) tested/added 5/4 trap constraints in 128 ms
[2025-06-01 07:17:03] [INFO ] Computed and/alt/rep : 24/100/22 causal constraints (skipped 20 transitions) in 6 ms.
[2025-06-01 07:17:03] [INFO ] Added : 20 causal constraints over 5 iterations in 57 ms. Result :sat
Minimization took 24 ms.
[2025-06-01 07:17:03] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:17:03] [INFO ] [Real]Absence check using state equation in 23 ms returned sat
[2025-06-01 07:17:04] [INFO ] [Real]Added 8 Read/Feed constraints in 4 ms returned sat
[2025-06-01 07:17:04] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:17:04] [INFO ] [Nat]Absence check using 3 positive place invariants in 1 ms returned sat
[2025-06-01 07:17:04] [INFO ] [Nat]Absence check using state equation in 21 ms returned sat
[2025-06-01 07:17:04] [INFO ] [Nat]Added 8 Read/Feed constraints in 3 ms returned sat
[2025-06-01 07:17:04] [INFO ] Deduced a trap composed of 6 places in 54 ms of which 2 ms to minimize.
[2025-06-01 07:17:04] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 61 ms
[2025-06-01 07:17:04] [INFO ] Computed and/alt/rep : 24/100/22 causal constraints (skipped 20 transitions) in 6 ms.
[2025-06-01 07:17:04] [INFO ] Added : 15 causal constraints over 5 iterations in 43 ms. Result :sat
Minimization took 13 ms.
[2025-06-01 07:17:04] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:17:04] [INFO ] [Real]Absence check using state equation in 23 ms returned sat
[2025-06-01 07:17:04] [INFO ] [Real]Added 8 Read/Feed constraints in 4 ms returned sat
[2025-06-01 07:17:04] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:17:04] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:17:04] [INFO ] [Nat]Absence check using state equation in 24 ms returned sat
[2025-06-01 07:17:04] [INFO ] [Nat]Added 8 Read/Feed constraints in 4 ms returned sat
[2025-06-01 07:17:04] [INFO ] Deduced a trap composed of 6 places in 33 ms of which 1 ms to minimize.
[2025-06-01 07:17:04] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 43 ms
[2025-06-01 07:17:04] [INFO ] Computed and/alt/rep : 24/100/22 causal constraints (skipped 20 transitions) in 7 ms.
[2025-06-01 07:17:04] [INFO ] Added : 15 causal constraints over 5 iterations in 56 ms. Result :sat
Minimization took 20 ms.
[2025-06-01 07:17:04] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:17:04] [INFO ] [Real]Absence check using state equation in 23 ms returned sat
[2025-06-01 07:17:04] [INFO ] [Real]Added 8 Read/Feed constraints in 4 ms returned sat
[2025-06-01 07:17:04] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:17:04] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:17:04] [INFO ] [Nat]Absence check using state equation in 23 ms returned sat
[2025-06-01 07:17:04] [INFO ] [Nat]Added 8 Read/Feed constraints in 4 ms returned sat
[2025-06-01 07:17:04] [INFO ] Deduced a trap composed of 8 places in 46 ms of which 14 ms to minimize.
[2025-06-01 07:17:04] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 54 ms
[2025-06-01 07:17:04] [INFO ] Computed and/alt/rep : 24/100/22 causal constraints (skipped 20 transitions) in 4 ms.
[2025-06-01 07:17:04] [INFO ] Added : 15 causal constraints over 5 iterations in 30 ms. Result :sat
Minimization took 20 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[5651, 253, 141709, 5670, 147, 3184, 950, 937] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[5651, 253, 141709, 5670, 147, 3184, 3762, 937] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
Support contains 8 out of 32 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 32/32 places, 63/63 transitions.
Applied a total of 0 rules in 4 ms. Remains 32 /32 variables (removed 0) and now considering 63/63 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 4 ms. Remains : 32/32 places, 63/63 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 32/32 places, 63/63 transitions.
Applied a total of 0 rules in 2 ms. Remains 32 /32 variables (removed 0) and now considering 63/63 (removed 0) transitions.
[2025-06-01 07:17:49] [INFO ] Flow matrix only has 44 transitions (discarded 19 similar events)
[2025-06-01 07:17:49] [INFO ] Invariant cache hit.
[2025-06-01 07:17:49] [INFO ] Implicit Places using invariants in 64 ms returned []
[2025-06-01 07:17:49] [INFO ] Flow matrix only has 44 transitions (discarded 19 similar events)
[2025-06-01 07:17:49] [INFO ] Invariant cache hit.
[2025-06-01 07:17:49] [INFO ] State equation strengthened by 8 read => feed constraints.
[2025-06-01 07:17:49] [INFO ] Implicit Places using invariants and state equation in 73 ms returned []
Implicit Place search using SMT with State Equation took 169 ms to find 0 implicit places.
[2025-06-01 07:17:49] [INFO ] Redundant transitions in 1 ms returned []
Running 61 sub problems to find dead transitions.
[2025-06-01 07:17:49] [INFO ] Flow matrix only has 44 transitions (discarded 19 similar events)
[2025-06-01 07:17:49] [INFO ] Invariant cache hit.
[2025-06-01 07:17:49] [INFO ] State equation strengthened by 8 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/31 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 61 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/31 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 61 unsolved
At refinement iteration 2 (OVERLAPS) 44/75 variables, 31/34 constraints. Problems are: Problem set: 0 solved, 61 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/75 variables, 8/42 constraints. Problems are: Problem set: 0 solved, 61 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/75 variables, 0/42 constraints. Problems are: Problem set: 0 solved, 61 unsolved
At refinement iteration 5 (OVERLAPS) 1/76 variables, 1/43 constraints. Problems are: Problem set: 0 solved, 61 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/76 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 61 unsolved
At refinement iteration 7 (OVERLAPS) 0/76 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 61 unsolved
No progress, stopping.
After SMT solving in domain Real declared 76/76 variables, and 43 constraints, problems are : Problem set: 0 solved, 61 unsolved in 1060 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 32/32 constraints, ReadFeed: 8/8 constraints, PredecessorRefiner: 61/61 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 61 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/31 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 61 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/31 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 61 unsolved
At refinement iteration 2 (OVERLAPS) 44/75 variables, 31/34 constraints. Problems are: Problem set: 0 solved, 61 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/75 variables, 8/42 constraints. Problems are: Problem set: 0 solved, 61 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/75 variables, 4/46 constraints. Problems are: Problem set: 0 solved, 61 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/75 variables, 0/46 constraints. Problems are: Problem set: 0 solved, 61 unsolved
At refinement iteration 6 (OVERLAPS) 1/76 variables, 1/47 constraints. Problems are: Problem set: 0 solved, 61 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/76 variables, 57/104 constraints. Problems are: Problem set: 0 solved, 61 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/76 variables, 0/104 constraints. Problems are: Problem set: 0 solved, 61 unsolved
At refinement iteration 9 (OVERLAPS) 0/76 variables, 0/104 constraints. Problems are: Problem set: 0 solved, 61 unsolved
No progress, stopping.
After SMT solving in domain Int declared 76/76 variables, and 104 constraints, problems are : Problem set: 0 solved, 61 unsolved in 1053 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 32/32 constraints, ReadFeed: 8/8 constraints, PredecessorRefiner: 61/61 constraints, Known Traps: 0/0 constraints]
After SMT, in 2154ms problems are : Problem set: 0 solved, 61 unsolved
Search for dead transitions found 0 dead transitions in 2158ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 2338 ms. Remains : 32/32 places, 63/63 transitions.
[2025-06-01 07:17:51] [INFO ] Flow matrix only has 44 transitions (discarded 19 similar events)
Found an invariant !
This invariant on transitions {3=1, 5=1, 22=1, 33=1, 42=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {5=1, 22=1, 33=1, 42=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 8) seen :[8, 2147483647, 144, 5, 2147483647, 13, 6, 4]
Current structural bounds on expressions (after cover walk) : Max Seen:[5651, +inf, 141709, 5670, +inf, 3184, 3762, 937] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 07:17:51] [INFO ] Flow matrix only has 44 transitions (discarded 19 similar events)
[2025-06-01 07:17:51] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[5651, +inf, 141709, 5670, +inf, 3184, 3762, 937] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000081 steps (2 resets) in 645 ms. (1548 steps per ms)
FORMULA FunctionPointer-PT-a128-UpperBounds-09 +inf TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA FunctionPointer-PT-a128-UpperBounds-12 +inf TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA FunctionPointer-PT-a128-UpperBounds-05 +inf TECHNIQUES TOPOLOGICAL RANDOM_WALK
BEST_FIRST walk for 6000006 steps (12 resets) in 2491 ms. (2407 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[5651, 141709, 5670, 3191, 3762, 937] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 07:17:55] [INFO ] Flow matrix only has 44 transitions (discarded 19 similar events)
[2025-06-01 07:17:55] [INFO ] Invariant cache hit.
[2025-06-01 07:17:55] [INFO ] [Real]Absence check using 3 positive place invariants in 1 ms returned sat
[2025-06-01 07:17:55] [INFO ] [Real]Absence check using state equation in 15 ms returned sat
[2025-06-01 07:17:55] [INFO ] State equation strengthened by 8 read => feed constraints.
[2025-06-01 07:17:55] [INFO ] [Real]Added 8 Read/Feed constraints in 2 ms returned sat
[2025-06-01 07:17:55] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:17:55] [INFO ] [Nat]Absence check using 3 positive place invariants in 1 ms returned sat
[2025-06-01 07:17:55] [INFO ] [Nat]Absence check using state equation in 15 ms returned sat
[2025-06-01 07:17:55] [INFO ] [Nat]Added 8 Read/Feed constraints in 2 ms returned sat
[2025-06-01 07:17:55] [INFO ] Computed and/alt/rep : 24/100/22 causal constraints (skipped 20 transitions) in 5 ms.
[2025-06-01 07:17:55] [INFO ] Deduced a trap composed of 8 places in 39 ms of which 1 ms to minimize.
[2025-06-01 07:17:55] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 49 ms
[2025-06-01 07:17:55] [INFO ] Added : 4 causal constraints over 2 iterations in 69 ms. Result :sat
Minimization took 11 ms.
[2025-06-01 07:17:55] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:17:55] [INFO ] [Real]Absence check using state equation in 26 ms returned sat
[2025-06-01 07:17:55] [INFO ] [Real]Added 8 Read/Feed constraints in 3 ms returned sat
[2025-06-01 07:17:55] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:17:55] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:17:55] [INFO ] [Nat]Absence check using state equation in 21 ms returned sat
[2025-06-01 07:17:55] [INFO ] [Nat]Added 8 Read/Feed constraints in 3 ms returned sat
[2025-06-01 07:17:55] [INFO ] Deduced a trap composed of 7 places in 70 ms of which 1 ms to minimize.
[2025-06-01 07:17:55] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 77 ms
[2025-06-01 07:17:55] [INFO ] Computed and/alt/rep : 24/100/22 causal constraints (skipped 20 transitions) in 5 ms.
[2025-06-01 07:17:55] [INFO ] Added : 13 causal constraints over 3 iterations in 29 ms. Result :sat
Minimization took 13 ms.
[2025-06-01 07:17:55] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:17:55] [INFO ] [Real]Absence check using state equation in 20 ms returned sat
[2025-06-01 07:17:55] [INFO ] [Real]Added 8 Read/Feed constraints in 2 ms returned sat
[2025-06-01 07:17:55] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:17:55] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:17:55] [INFO ] [Nat]Absence check using state equation in 24 ms returned sat
[2025-06-01 07:17:55] [INFO ] [Nat]Added 8 Read/Feed constraints in 4 ms returned sat
[2025-06-01 07:17:55] [INFO ] Computed and/alt/rep : 24/100/22 causal constraints (skipped 20 transitions) in 7 ms.
[2025-06-01 07:17:55] [INFO ] Deduced a trap composed of 8 places in 32 ms of which 1 ms to minimize.
[2025-06-01 07:17:55] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 42 ms
[2025-06-01 07:17:55] [INFO ] Added : 4 causal constraints over 2 iterations in 72 ms. Result :sat
Minimization took 17 ms.
[2025-06-01 07:17:55] [INFO ] [Real]Absence check using 3 positive place invariants in 1 ms returned sat
[2025-06-01 07:17:55] [INFO ] [Real]Absence check using state equation in 18 ms returned sat
[2025-06-01 07:17:55] [INFO ] [Real]Added 8 Read/Feed constraints in 3 ms returned sat
[2025-06-01 07:17:55] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:17:55] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:17:55] [INFO ] [Nat]Absence check using state equation in 22 ms returned sat
[2025-06-01 07:17:55] [INFO ] [Nat]Added 8 Read/Feed constraints in 3 ms returned sat
[2025-06-01 07:17:55] [INFO ] Deduced a trap composed of 6 places in 39 ms of which 1 ms to minimize.
[2025-06-01 07:17:55] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 47 ms
[2025-06-01 07:17:55] [INFO ] Computed and/alt/rep : 24/100/22 causal constraints (skipped 20 transitions) in 7 ms.
[2025-06-01 07:17:55] [INFO ] Added : 15 causal constraints over 5 iterations in 51 ms. Result :sat
Minimization took 20 ms.
[2025-06-01 07:17:55] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 07:17:56] [INFO ] [Real]Absence check using state equation in 23 ms returned sat
[2025-06-01 07:17:56] [INFO ] [Real]Added 8 Read/Feed constraints in 3 ms returned sat
[2025-06-01 07:17:56] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:17:56] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2025-06-01 07:17:56] [INFO ] [Nat]Absence check using state equation in 24 ms returned sat
[2025-06-01 07:17:56] [INFO ] [Nat]Added 8 Read/Feed constraints in 4 ms returned sat
[2025-06-01 07:17:56] [INFO ] Deduced a trap composed of 6 places in 32 ms of which 1 ms to minimize.
[2025-06-01 07:17:56] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 41 ms
[2025-06-01 07:17:56] [INFO ] Computed and/alt/rep : 24/100/22 causal constraints (skipped 20 transitions) in 7 ms.
[2025-06-01 07:17:56] [INFO ] Added : 15 causal constraints over 5 iterations in 51 ms. Result :sat
Minimization took 20 ms.
[2025-06-01 07:17:56] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 07:17:56] [INFO ] [Real]Absence check using state equation in 46 ms returned sat
[2025-06-01 07:17:56] [INFO ] [Real]Added 8 Read/Feed constraints in 7 ms returned sat
[2025-06-01 07:17:56] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 07:17:56] [INFO ] [Nat]Absence check using 3 positive place invariants in 7 ms returned sat
[2025-06-01 07:17:56] [INFO ] [Nat]Absence check using state equation in 96 ms returned sat
[2025-06-01 07:17:56] [INFO ] [Nat]Added 8 Read/Feed constraints in 10 ms returned sat
[2025-06-01 07:17:56] [INFO ] Deduced a trap composed of 8 places in 33 ms of which 1 ms to minimize.
[2025-06-01 07:17:56] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 42 ms
[2025-06-01 07:17:56] [INFO ] Computed and/alt/rep : 24/100/22 causal constraints (skipped 20 transitions) in 6 ms.
[2025-06-01 07:17:56] [INFO ] Added : 15 causal constraints over 5 iterations in 49 ms. Result :sat
Minimization took 19 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[5651, 141709, 5670, 3191, 3762, 937] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[5651, 249041, 5670, 3191, 3762, 937] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Support contains 6 out of 32 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 32/32 places, 63/63 transitions.
Graph (complete) has 113 edges and 32 vertex of which 29 are kept as prefixes of interest. Removing 3 places using SCC suffix rule.0 ms
Discarding 3 places :
Also discarding 0 output transitions
Drop transitions (Empty/Sink Transition effects.) removed 5 transitions
Reduce isomorphic transitions removed 5 transitions.
Iterating post reduction 0 with 5 rules applied. Total rules applied 6 place count 29 transition count 58
Applied a total of 6 rules in 9 ms. Remains 29 /32 variables (removed 3) and now considering 58/63 (removed 5) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 9 ms. Remains : 29/32 places, 58/63 transitions.
[2025-06-01 07:18:45] [INFO ] Flow matrix only has 41 transitions (discarded 17 similar events)
Found an invariant !
This invariant on transitions {3=1, 4=1, 6=1, 20=1, 28=1, 38=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {3=1, 20=1, 30=1, 40=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 40 ms. (steps per millisecond=250 ) properties (out of 6) seen :[2147483647, 2147483647, 2147483647, 2147483647, 2147483647, 2147483647]
Current structural bounds on expressions (after cover walk) : Max Seen:[+inf, +inf, +inf, +inf, +inf, +inf] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 07:18:46] [INFO ] Flow matrix only has 41 transitions (discarded 17 similar events)
// Phase 1: matrix 41 rows 29 cols
[2025-06-01 07:18:46] [INFO ] Computed 3 invariants in 3 ms
Current structural bounds on expressions (after invariants) : Max Seen:[+inf, +inf, +inf, +inf, +inf, +inf] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000001 steps (2 resets) in 1169 ms. (854 steps per ms)
FORMULA FunctionPointer-PT-a128-UpperBounds-15 +inf TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA FunctionPointer-PT-a128-UpperBounds-13 +inf TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA FunctionPointer-PT-a128-UpperBounds-10 +inf TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA FunctionPointer-PT-a128-UpperBounds-07 +inf TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA FunctionPointer-PT-a128-UpperBounds-06 +inf TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA FunctionPointer-PT-a128-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 )
[2025-06-01 07:18:47] [INFO ] Flatten gal took : 62 ms
[2025-06-01 07:18:47] [INFO ] Flatten gal took : 21 ms
[2025-06-01 07:18:47] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality3058877735982851418.gal : 12 ms
[2025-06-01 07:18:47] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality921793395387907491.prop : 1 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202405141337/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality3058877735982851418.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality921793395387907491.prop' '--nowitness' '--gen-order' 'FOLLOW'

ITS runner timed out or was interrupted.
its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202405141337/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...327
ITS tools runner thread asked to quit. Dying gracefully.
Current structural bounds on expressions (After reachability solving 0 queries.) : Max Seen:[] Max Struct:[]
All properties solved without resorting to model-checking.
Total runtime 256308 ms.

BK_STOP 1748762327799

--------------------
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="FunctionPointer-PT-a128"
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 FunctionPointer-PT-a128, 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 r111-smll-174867015800007"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/FunctionPointer-PT-a128.tgz
mv FunctionPointer-PT-a128 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 ;