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-174867015800012.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-b032, examination is UpperBounds
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r111-smll-174867015800012
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 848K
-rw-r--r-- 1 mcc users 7.4K May 29 14:47 CTLCardinality.txt
-rw-r--r-- 1 mcc users 80K May 29 14:47 CTLCardinality.xml
-rw-r--r-- 1 mcc users 6.3K May 29 14:47 CTLFireability.txt
-rw-r--r-- 1 mcc users 61K May 29 14:47 CTLFireability.xml
-rw-r--r-- 1 mcc users 3.8K May 29 14:47 LTLCardinality.txt
-rw-r--r-- 1 mcc users 27K May 29 14:47 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.3K May 29 14:47 LTLFireability.txt
-rw-r--r-- 1 mcc users 19K May 29 14:47 LTLFireability.xml
-rw-r--r-- 1 mcc users 13K May 29 14:47 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 138K May 29 14:47 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 6.6K May 29 14:47 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 51K 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 391K 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-b032-UpperBounds-00
FORMULA_NAME FunctionPointer-PT-b032-UpperBounds-01
FORMULA_NAME FunctionPointer-PT-b032-UpperBounds-02
FORMULA_NAME FunctionPointer-PT-b032-UpperBounds-03
FORMULA_NAME FunctionPointer-PT-b032-UpperBounds-04
FORMULA_NAME FunctionPointer-PT-b032-UpperBounds-05
FORMULA_NAME FunctionPointer-PT-b032-UpperBounds-06
FORMULA_NAME FunctionPointer-PT-b032-UpperBounds-07
FORMULA_NAME FunctionPointer-PT-b032-UpperBounds-08
FORMULA_NAME FunctionPointer-PT-b032-UpperBounds-09
FORMULA_NAME FunctionPointer-PT-b032-UpperBounds-10
FORMULA_NAME FunctionPointer-PT-b032-UpperBounds-11
FORMULA_NAME FunctionPointer-PT-b032-UpperBounds-12
FORMULA_NAME FunctionPointer-PT-b032-UpperBounds-13
FORMULA_NAME FunctionPointer-PT-b032-UpperBounds-14
FORMULA_NAME FunctionPointer-PT-b032-UpperBounds-15

=== Now, execution of the tool begins

BK_START 1748766080440

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-b032
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
UpperBounds PT
Running Version 202405141337
[2025-06-01 08:21:22] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, UpperBounds, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2025-06-01 08:21:22] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2025-06-01 08:21:22] [INFO ] Load time of PNML (sax parser for PT used): 229 ms
[2025-06-01 08:21:22] [INFO ] Transformed 306 places.
[2025-06-01 08:21:22] [INFO ] Transformed 840 transitions.
[2025-06-01 08:21:22] [INFO ] Parsed PT model containing 306 places and 840 transitions and 3392 arcs in 420 ms.
Parsed 16 properties from file /home/mcc/execution/UpperBounds.xml in 12 ms.
Reduction of identical properties reduced properties to check from 16 to 15
Deduced a syphon composed of 84 places in 29 ms
Reduce places removed 84 places and 192 transitions.
FORMULA FunctionPointer-PT-b032-UpperBounds-05 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA FunctionPointer-PT-b032-UpperBounds-06 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA FunctionPointer-PT-b032-UpperBounds-07 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA FunctionPointer-PT-b032-UpperBounds-11 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
Current structural bounds on expressions (Initially) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[+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] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 08:21:22] [INFO ] Flow matrix only has 414 transitions (discarded 234 similar events)
// Phase 1: matrix 414 rows 222 cols
[2025-06-01 08:21:22] [INFO ] Computed 4 invariants in 29 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[1, +inf, +inf, +inf, +inf, +inf, +inf, 1, 32, +inf, +inf]
RANDOM walk for 10001 steps (6 resets) in 56 ms. (175 steps per ms)
FORMULA FunctionPointer-PT-b032-UpperBounds-10 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA FunctionPointer-PT-b032-UpperBounds-00 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 90009 steps (51 resets) in 153 ms. (584 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[3, 1, 6, 1, 11, 1, 2, 5, 4] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, 32, +inf, +inf]
[2025-06-01 08:21:23] [INFO ] Flow matrix only has 414 transitions (discarded 234 similar events)
[2025-06-01 08:21:23] [INFO ] Invariant cache hit.
[2025-06-01 08:21:23] [INFO ] [Real]Absence check using 3 positive place invariants in 8 ms returned sat
[2025-06-01 08:21:23] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 3 ms returned sat
[2025-06-01 08:21:23] [INFO ] [Real]Absence check using state equation in 224 ms returned sat
[2025-06-01 08:21:23] [INFO ] State equation strengthened by 65 read => feed constraints.
[2025-06-01 08:21:23] [INFO ] [Real]Added 65 Read/Feed constraints in 19 ms returned sat
[2025-06-01 08:21:23] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:21:24] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2025-06-01 08:21:24] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2025-06-01 08:21:24] [INFO ] [Nat]Absence check using state equation in 218 ms returned sat
[2025-06-01 08:21:24] [INFO ] [Nat]Added 65 Read/Feed constraints in 35 ms returned sat
[2025-06-01 08:21:24] [INFO ] Computed and/alt/rep : 57/91/57 causal constraints (skipped 355 transitions) in 98 ms.
[2025-06-01 08:21:24] [INFO ] Added : 1 causal constraints over 1 iterations in 220 ms. Result :sat
Minimization took 115 ms.
[2025-06-01 08:21:25] [INFO ] [Real]Absence check using 3 positive place invariants in 6 ms returned sat
[2025-06-01 08:21:25] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2025-06-01 08:21:25] [INFO ] [Real]Absence check using state equation in 159 ms returned sat
[2025-06-01 08:21:25] [INFO ] [Real]Added 65 Read/Feed constraints in 21 ms returned sat
[2025-06-01 08:21:25] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:21:25] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 08:21:25] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2025-06-01 08:21:25] [INFO ] [Nat]Absence check using state equation in 150 ms returned sat
[2025-06-01 08:21:25] [INFO ] [Nat]Added 65 Read/Feed constraints in 22 ms returned sat
[2025-06-01 08:21:25] [INFO ] Computed and/alt/rep : 57/91/57 causal constraints (skipped 355 transitions) in 86 ms.
[2025-06-01 08:21:25] [INFO ] Added : 2 causal constraints over 1 iterations in 152 ms. Result :sat
Minimization took 110 ms.
[2025-06-01 08:21:25] [INFO ] [Real]Absence check using 3 positive place invariants in 6 ms returned sat
[2025-06-01 08:21:25] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 0 ms returned sat
[2025-06-01 08:21:26] [INFO ] [Real]Absence check using state equation in 145 ms returned sat
[2025-06-01 08:21:26] [INFO ] [Real]Added 65 Read/Feed constraints in 14 ms returned sat
[2025-06-01 08:21:26] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:21:26] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:21:26] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2025-06-01 08:21:26] [INFO ] [Nat]Absence check using state equation in 170 ms returned sat
[2025-06-01 08:21:26] [INFO ] [Nat]Added 65 Read/Feed constraints in 13 ms returned sat
[2025-06-01 08:21:26] [INFO ] Deduced a trap composed of 35 places in 223 ms of which 35 ms to minimize.
[2025-06-01 08:21:26] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 264 ms
[2025-06-01 08:21:26] [INFO ] Computed and/alt/rep : 57/91/57 causal constraints (skipped 355 transitions) in 63 ms.
[2025-06-01 08:21:26] [INFO ] Added : 3 causal constraints over 1 iterations in 129 ms. Result :sat
Minimization took 117 ms.
[2025-06-01 08:21:26] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 08:21:26] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2025-06-01 08:21:27] [INFO ] [Real]Absence check using state equation in 154 ms returned sat
[2025-06-01 08:21:27] [INFO ] [Real]Added 65 Read/Feed constraints in 15 ms returned sat
[2025-06-01 08:21:27] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:21:27] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 08:21:27] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 0 ms returned sat
[2025-06-01 08:21:27] [INFO ] [Nat]Absence check using state equation in 151 ms returned sat
[2025-06-01 08:21:27] [INFO ] [Nat]Added 65 Read/Feed constraints in 17 ms returned sat
[2025-06-01 08:21:27] [INFO ] Computed and/alt/rep : 57/91/57 causal constraints (skipped 355 transitions) in 63 ms.
[2025-06-01 08:21:27] [INFO ] Added : 2 causal constraints over 1 iterations in 133 ms. Result :sat
Minimization took 111 ms.
[2025-06-01 08:21:27] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:21:27] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 0 ms returned sat
[2025-06-01 08:21:27] [INFO ] [Real]Absence check using state equation in 147 ms returned sat
[2025-06-01 08:21:27] [INFO ] [Real]Added 65 Read/Feed constraints in 15 ms returned sat
[2025-06-01 08:21:27] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:21:27] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 08:21:27] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2025-06-01 08:21:28] [INFO ] [Nat]Absence check using state equation in 195 ms returned sat
[2025-06-01 08:21:28] [INFO ] [Nat]Added 65 Read/Feed constraints in 13 ms returned sat
[2025-06-01 08:21:28] [INFO ] Deduced a trap composed of 24 places in 300 ms of which 3 ms to minimize.
[2025-06-01 08:21:28] [INFO ] Deduced a trap composed of 21 places in 203 ms of which 3 ms to minimize.
[2025-06-01 08:21:28] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 553 ms
[2025-06-01 08:21:28] [INFO ] Computed and/alt/rep : 57/91/57 causal constraints (skipped 355 transitions) in 46 ms.
[2025-06-01 08:21:28] [INFO ] Added : 1 causal constraints over 1 iterations in 110 ms. Result :sat
Minimization took 108 ms.
[2025-06-01 08:21:29] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 08:21:29] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2025-06-01 08:21:29] [INFO ] [Real]Absence check using state equation in 129 ms returned sat
[2025-06-01 08:21:29] [INFO ] [Real]Added 65 Read/Feed constraints in 22 ms returned sat
[2025-06-01 08:21:29] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:21:29] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:21:29] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2025-06-01 08:21:29] [INFO ] [Nat]Absence check using state equation in 137 ms returned sat
[2025-06-01 08:21:29] [INFO ] [Nat]Added 65 Read/Feed constraints in 17 ms returned sat
[2025-06-01 08:21:29] [INFO ] Computed and/alt/rep : 57/91/57 causal constraints (skipped 355 transitions) in 40 ms.
[2025-06-01 08:21:29] [INFO ] Added : 2 causal constraints over 1 iterations in 122 ms. Result :sat
Minimization took 112 ms.
[2025-06-01 08:21:29] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:21:29] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 2 ms returned sat
[2025-06-01 08:21:29] [INFO ] [Real]Absence check using state equation in 161 ms returned sat
[2025-06-01 08:21:29] [INFO ] [Real]Added 65 Read/Feed constraints in 20 ms returned sat
[2025-06-01 08:21:29] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:21:30] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2025-06-01 08:21:30] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2025-06-01 08:21:30] [INFO ] [Nat]Absence check using state equation in 203 ms returned sat
[2025-06-01 08:21:30] [INFO ] [Nat]Added 65 Read/Feed constraints in 26 ms returned sat
[2025-06-01 08:21:30] [INFO ] Computed and/alt/rep : 57/91/57 causal constraints (skipped 355 transitions) in 61 ms.
[2025-06-01 08:21:30] [INFO ] Added : 1 causal constraints over 1 iterations in 155 ms. Result :sat
Minimization took 182 ms.
[2025-06-01 08:21:30] [INFO ] [Real]Absence check using 3 positive place invariants in 6 ms returned sat
[2025-06-01 08:21:30] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2025-06-01 08:21:30] [INFO ] [Real]Absence check using state equation in 175 ms returned sat
[2025-06-01 08:21:30] [INFO ] [Real]Added 65 Read/Feed constraints in 19 ms returned sat
[2025-06-01 08:21:30] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:21:31] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2025-06-01 08:21:31] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2025-06-01 08:21:31] [INFO ] [Nat]Absence check using state equation in 168 ms returned sat
[2025-06-01 08:21:31] [INFO ] [Nat]Added 65 Read/Feed constraints in 31 ms returned sat
[2025-06-01 08:21:31] [INFO ] Deduced a trap composed of 26 places in 177 ms of which 7 ms to minimize.
[2025-06-01 08:21:31] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 218 ms
[2025-06-01 08:21:31] [INFO ] Computed and/alt/rep : 57/91/57 causal constraints (skipped 355 transitions) in 40 ms.
[2025-06-01 08:21:31] [INFO ] Added : 1 causal constraints over 1 iterations in 118 ms. Result :sat
Minimization took 124 ms.
[2025-06-01 08:21:31] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 08:21:31] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 0 ms returned sat
[2025-06-01 08:21:31] [INFO ] [Real]Absence check using state equation in 164 ms returned sat
[2025-06-01 08:21:31] [INFO ] [Real]Added 65 Read/Feed constraints in 15 ms returned sat
[2025-06-01 08:21:31] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:21:32] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 08:21:32] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 11 ms returned sat
[2025-06-01 08:21:32] [INFO ] [Nat]Absence check using state equation in 179 ms returned sat
[2025-06-01 08:21:32] [INFO ] [Nat]Added 65 Read/Feed constraints in 18 ms returned sat
[2025-06-01 08:21:32] [INFO ] Computed and/alt/rep : 57/91/57 causal constraints (skipped 355 transitions) in 58 ms.
[2025-06-01 08:21:32] [INFO ] Added : 1 causal constraints over 1 iterations in 152 ms. Result :sat
Minimization took 163 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[3, 1, 6, 1, 11, 1, 2, 5, 4] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, 32, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[3, 1, 6, 1, 11, 1, 2, 5, 4] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, 32, +inf, +inf]
Support contains 9 out of 222 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 222/222 places, 648/648 transitions.
Graph (complete) has 932 edges and 222 vertex of which 189 are kept as prefixes of interest. Removing 33 places using SCC suffix rule.6 ms
Discarding 33 places :
Also discarding 0 output transitions
Drop transitions (Empty/Sink Transition effects.) removed 48 transitions
Reduce isomorphic transitions removed 48 transitions.
Iterating post reduction 0 with 48 rules applied. Total rules applied 49 place count 189 transition count 600
Discarding 27 places :
Symmetric choice reduction at 1 with 27 rule applications. Total rules 76 place count 162 transition count 454
Iterating global reduction 1 with 27 rules applied. Total rules applied 103 place count 162 transition count 454
Ensure Unique test removed 40 transitions
Reduce isomorphic transitions removed 40 transitions.
Iterating post reduction 1 with 40 rules applied. Total rules applied 143 place count 162 transition count 414
Discarding 14 places :
Symmetric choice reduction at 2 with 14 rule applications. Total rules 157 place count 148 transition count 386
Iterating global reduction 2 with 14 rules applied. Total rules applied 171 place count 148 transition count 386
Ensure Unique test removed 8 transitions
Reduce isomorphic transitions removed 8 transitions.
Iterating post reduction 2 with 8 rules applied. Total rules applied 179 place count 148 transition count 378
Discarding 5 places :
Symmetric choice reduction at 3 with 5 rule applications. Total rules 184 place count 143 transition count 368
Iterating global reduction 3 with 5 rules applied. Total rules applied 189 place count 143 transition count 368
Discarding 4 places :
Symmetric choice reduction at 3 with 4 rule applications. Total rules 193 place count 139 transition count 352
Iterating global reduction 3 with 4 rules applied. Total rules applied 197 place count 139 transition count 352
Discarding 4 places :
Symmetric choice reduction at 3 with 4 rule applications. Total rules 201 place count 135 transition count 344
Iterating global reduction 3 with 4 rules applied. Total rules applied 205 place count 135 transition count 344
Discarding 3 places :
Symmetric choice reduction at 3 with 3 rule applications. Total rules 208 place count 132 transition count 332
Iterating global reduction 3 with 3 rules applied. Total rules applied 211 place count 132 transition count 332
Discarding 2 places :
Symmetric choice reduction at 3 with 2 rule applications. Total rules 213 place count 130 transition count 324
Iterating global reduction 3 with 2 rules applied. Total rules applied 215 place count 130 transition count 324
Discarding 2 places :
Symmetric choice reduction at 3 with 2 rule applications. Total rules 217 place count 128 transition count 320
Iterating global reduction 3 with 2 rules applied. Total rules applied 219 place count 128 transition count 320
Discarding 2 places :
Symmetric choice reduction at 3 with 2 rule applications. Total rules 221 place count 126 transition count 316
Iterating global reduction 3 with 2 rules applied. Total rules applied 223 place count 126 transition count 316
Discarding 2 places :
Symmetric choice reduction at 3 with 2 rule applications. Total rules 225 place count 124 transition count 312
Iterating global reduction 3 with 2 rules applied. Total rules applied 227 place count 124 transition count 312
Discarding 2 places :
Symmetric choice reduction at 3 with 2 rule applications. Total rules 229 place count 122 transition count 308
Iterating global reduction 3 with 2 rules applied. Total rules applied 231 place count 122 transition count 308
Discarding 1 places :
Symmetric choice reduction at 3 with 1 rule applications. Total rules 232 place count 121 transition count 306
Iterating global reduction 3 with 1 rules applied. Total rules applied 233 place count 121 transition count 306
Drop transitions (Redundant composition of simpler transitions.) removed 12 transitions
Redundant transition composition rules discarded 12 transitions
Iterating global reduction 3 with 12 rules applied. Total rules applied 245 place count 121 transition count 294
Applied a total of 245 rules in 295 ms. Remains 121 /222 variables (removed 101) and now considering 294/648 (removed 354) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 319 ms. Remains : 121/222 places, 294/648 transitions.
[2025-06-01 08:21:33] [INFO ] Flow matrix only has 194 transitions (discarded 100 similar events)
Found an invariant !
This invariant on transitions {25=1, 34=1, 92=1, 147=1, 189=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {31=1, 98=1, 153=1, 189=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 173 ms. (steps per millisecond=57 ) properties (out of 9) seen :[8, 4, 15, 5, 5, 4, 3, 3, 8]
Current structural bounds on expressions (after cover walk) : Max Seen:[8, 4, 15, 5, 11, 4, 3, 5, 8] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, 32, +inf, +inf]
[2025-06-01 08:21:33] [INFO ] Flow matrix only has 194 transitions (discarded 100 similar events)
// Phase 1: matrix 194 rows 121 cols
[2025-06-01 08:21:33] [INFO ] Computed 3 invariants in 4 ms
Current structural bounds on expressions (after invariants) : Max Seen:[8, 4, 15, 5, 11, 4, 3, 5, 8] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, 32, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 1962 ms. (509 steps per ms)
BEST_FIRST walk for 9000008 steps (18 resets) in 12081 ms. (744 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[461, 51, 3004, 115, 106, 67, 4, 47, 542] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, 32, +inf, +inf]
[2025-06-01 08:21:47] [INFO ] Flow matrix only has 194 transitions (discarded 100 similar events)
[2025-06-01 08:21:47] [INFO ] Invariant cache hit.
[2025-06-01 08:21:47] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:21:47] [INFO ] [Real]Absence check using state equation in 72 ms returned sat
[2025-06-01 08:21:47] [INFO ] State equation strengthened by 33 read => feed constraints.
[2025-06-01 08:21:47] [INFO ] [Real]Added 33 Read/Feed constraints in 9 ms returned sat
[2025-06-01 08:21:47] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:21:47] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 08:21:47] [INFO ] [Nat]Absence check using state equation in 60 ms returned sat
[2025-06-01 08:21:47] [INFO ] [Nat]Added 33 Read/Feed constraints in 9 ms returned sat
[2025-06-01 08:21:47] [INFO ] Computed and/alt/rep : 46/184/45 causal constraints (skipped 147 transitions) in 32 ms.
[2025-06-01 08:21:47] [INFO ] Added : 5 causal constraints over 3 iterations in 94 ms. Result :sat
Minimization took 73 ms.
[2025-06-01 08:21:47] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 08:21:48] [INFO ] [Real]Absence check using state equation in 90 ms returned sat
[2025-06-01 08:21:48] [INFO ] [Real]Added 33 Read/Feed constraints in 17 ms returned sat
[2025-06-01 08:21:48] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:21:48] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:21:48] [INFO ] [Nat]Absence check using state equation in 90 ms returned sat
[2025-06-01 08:21:48] [INFO ] [Nat]Added 33 Read/Feed constraints in 13 ms returned sat
[2025-06-01 08:21:48] [INFO ] Computed and/alt/rep : 46/184/45 causal constraints (skipped 147 transitions) in 21 ms.
[2025-06-01 08:21:48] [INFO ] Added : 8 causal constraints over 2 iterations in 87 ms. Result :sat
Minimization took 73 ms.
[2025-06-01 08:21:48] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 08:21:48] [INFO ] [Real]Absence check using state equation in 66 ms returned sat
[2025-06-01 08:21:48] [INFO ] [Real]Added 33 Read/Feed constraints in 8 ms returned sat
[2025-06-01 08:21:48] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:21:48] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 08:21:48] [INFO ] [Nat]Absence check using state equation in 93 ms returned sat
[2025-06-01 08:21:48] [INFO ] [Nat]Added 33 Read/Feed constraints in 11 ms returned sat
[2025-06-01 08:21:48] [INFO ] Computed and/alt/rep : 46/184/45 causal constraints (skipped 147 transitions) in 23 ms.
[2025-06-01 08:21:48] [INFO ] Deduced a trap composed of 29 places in 88 ms of which 2 ms to minimize.
[2025-06-01 08:21:49] [INFO ] Deduced a trap composed of 27 places in 82 ms of which 5 ms to minimize.
[2025-06-01 08:21:49] [INFO ] Deduced a trap composed of 23 places in 80 ms of which 2 ms to minimize.
[2025-06-01 08:21:49] [INFO ] Trap strengthening (SAT) tested/added 4/3 trap constraints in 305 ms
[2025-06-01 08:21:49] [INFO ] Added : 15 causal constraints over 4 iterations in 426 ms. Result :sat
Minimization took 48 ms.
[2025-06-01 08:21:49] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:21:49] [INFO ] [Real]Absence check using state equation in 66 ms returned sat
[2025-06-01 08:21:49] [INFO ] [Real]Added 33 Read/Feed constraints in 9 ms returned sat
[2025-06-01 08:21:49] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:21:49] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 08:21:49] [INFO ] [Nat]Absence check using state equation in 67 ms returned sat
[2025-06-01 08:21:49] [INFO ] [Nat]Added 33 Read/Feed constraints in 10 ms returned sat
[2025-06-01 08:21:49] [INFO ] Computed and/alt/rep : 46/184/45 causal constraints (skipped 147 transitions) in 20 ms.
[2025-06-01 08:21:49] [INFO ] Deduced a trap composed of 25 places in 87 ms of which 2 ms to minimize.
[2025-06-01 08:21:49] [INFO ] Deduced a trap composed of 23 places in 87 ms of which 5 ms to minimize.
[2025-06-01 08:21:49] [INFO ] Deduced a trap composed of 20 places in 84 ms of which 2 ms to minimize.
[2025-06-01 08:21:49] [INFO ] Trap strengthening (SAT) tested/added 4/3 trap constraints in 304 ms
[2025-06-01 08:21:49] [INFO ] Added : 6 causal constraints over 3 iterations in 395 ms. Result :sat
Minimization took 77 ms.
[2025-06-01 08:21:50] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 08:21:50] [INFO ] [Real]Absence check using state equation in 88 ms returned sat
[2025-06-01 08:21:50] [INFO ] [Real]Added 33 Read/Feed constraints in 13 ms returned sat
[2025-06-01 08:21:50] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:21:50] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:21:50] [INFO ] [Nat]Absence check using state equation in 70 ms returned sat
[2025-06-01 08:21:50] [INFO ] [Nat]Added 33 Read/Feed constraints in 9 ms returned sat
[2025-06-01 08:21:50] [INFO ] Deduced a trap composed of 27 places in 81 ms of which 2 ms to minimize.
[2025-06-01 08:21:50] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 97 ms
[2025-06-01 08:21:50] [INFO ] Computed and/alt/rep : 46/184/45 causal constraints (skipped 147 transitions) in 14 ms.
[2025-06-01 08:21:50] [INFO ] Deduced a trap composed of 44 places in 120 ms of which 3 ms to minimize.
[2025-06-01 08:21:50] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 143 ms
[2025-06-01 08:21:50] [INFO ] Added : 5 causal constraints over 3 iterations in 236 ms. Result :sat
Minimization took 76 ms.
[2025-06-01 08:21:50] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:21:50] [INFO ] [Real]Absence check using state equation in 86 ms returned sat
[2025-06-01 08:21:50] [INFO ] [Real]Added 33 Read/Feed constraints in 9 ms returned sat
[2025-06-01 08:21:50] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:21:50] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:21:51] [INFO ] [Nat]Absence check using state equation in 85 ms returned sat
[2025-06-01 08:21:51] [INFO ] [Nat]Added 33 Read/Feed constraints in 10 ms returned sat
[2025-06-01 08:21:51] [INFO ] Computed and/alt/rep : 46/184/45 causal constraints (skipped 147 transitions) in 24 ms.
[2025-06-01 08:21:51] [INFO ] Deduced a trap composed of 28 places in 118 ms of which 3 ms to minimize.
[2025-06-01 08:21:51] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 144 ms
[2025-06-01 08:21:51] [INFO ] Added : 5 causal constraints over 2 iterations in 238 ms. Result :sat
Minimization took 46 ms.
[2025-06-01 08:21:51] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:21:51] [INFO ] [Real]Absence check using state equation in 66 ms returned sat
[2025-06-01 08:21:51] [INFO ] [Real]Added 33 Read/Feed constraints in 10 ms returned sat
[2025-06-01 08:21:51] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:21:51] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 08:21:51] [INFO ] [Nat]Absence check using state equation in 66 ms returned sat
[2025-06-01 08:21:51] [INFO ] [Nat]Added 33 Read/Feed constraints in 8 ms returned sat
[2025-06-01 08:21:51] [INFO ] Computed and/alt/rep : 46/184/45 causal constraints (skipped 147 transitions) in 15 ms.
[2025-06-01 08:21:51] [INFO ] Added : 1 causal constraints over 1 iterations in 46 ms. Result :sat
Minimization took 45 ms.
[2025-06-01 08:21:51] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:21:51] [INFO ] [Real]Absence check using state equation in 63 ms returned sat
[2025-06-01 08:21:51] [INFO ] [Real]Added 33 Read/Feed constraints in 10 ms returned sat
[2025-06-01 08:21:51] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:21:51] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:21:51] [INFO ] [Nat]Absence check using state equation in 67 ms returned sat
[2025-06-01 08:21:51] [INFO ] [Nat]Added 33 Read/Feed constraints in 9 ms returned sat
[2025-06-01 08:21:51] [INFO ] Computed and/alt/rep : 46/184/45 causal constraints (skipped 147 transitions) in 15 ms.
[2025-06-01 08:21:52] [INFO ] Deduced a trap composed of 30 places in 86 ms of which 2 ms to minimize.
[2025-06-01 08:21:52] [INFO ] Deduced a trap composed of 22 places in 89 ms of which 2 ms to minimize.
[2025-06-01 08:21:52] [INFO ] Deduced a trap composed of 33 places in 85 ms of which 2 ms to minimize.
[2025-06-01 08:21:52] [INFO ] Trap strengthening (SAT) tested/added 4/3 trap constraints in 309 ms
[2025-06-01 08:21:52] [INFO ] Added : 13 causal constraints over 5 iterations in 416 ms. Result :sat
Minimization took 54 ms.
[2025-06-01 08:21:52] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 08:21:52] [INFO ] [Real]Absence check using state equation in 71 ms returned sat
[2025-06-01 08:21:52] [INFO ] [Real]Added 33 Read/Feed constraints in 9 ms returned sat
[2025-06-01 08:21:52] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:21:52] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 08:21:52] [INFO ] [Nat]Absence check using state equation in 68 ms returned sat
[2025-06-01 08:21:52] [INFO ] [Nat]Added 33 Read/Feed constraints in 9 ms returned sat
[2025-06-01 08:21:52] [INFO ] Deduced a trap composed of 42 places in 81 ms of which 2 ms to minimize.
[2025-06-01 08:21:52] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 97 ms
[2025-06-01 08:21:52] [INFO ] Computed and/alt/rep : 46/184/45 causal constraints (skipped 147 transitions) in 15 ms.
[2025-06-01 08:21:52] [INFO ] Added : 17 causal constraints over 5 iterations in 103 ms. Result :sat
Minimization took 53 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[461, 51, 3004, 115, 106, 67, 4, 47, 542] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, 32, +inf, +inf]
FORMULA FunctionPointer-PT-b032-UpperBounds-13 32 TECHNIQUES TOPOLOGICAL PARIKH_WALK
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[461, 51, 24777, 207, 215, 67, 47, 542] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
Support contains 8 out of 121 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 121/121 places, 294/294 transitions.
Applied a total of 0 rules in 22 ms. Remains 121 /121 variables (removed 0) and now considering 294/294 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 36 ms. Remains : 121/121 places, 294/294 transitions.
[2025-06-01 08:22:24] [INFO ] Flow matrix only has 194 transitions (discarded 100 similar events)
Found an invariant !
This invariant on transitions {25=1, 34=1, 92=1, 147=1, 189=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {31=1, 98=1, 153=1, 189=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 323 ms. (steps per millisecond=30 ) properties (out of 8) seen :[11, 5, 16, 10, 8, 6, 3, 4]
Current structural bounds on expressions (after cover walk) : Max Seen:[461, 51, 24777, 207, 215, 67, 47, 542] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 08:22:24] [INFO ] Flow matrix only has 194 transitions (discarded 100 similar events)
[2025-06-01 08:22:24] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[461, 51, 24777, 207, 215, 67, 47, 542] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 1961 ms. (509 steps per ms)
BEST_FIRST walk for 8000008 steps (16 resets) in 10147 ms. (788 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[554, 54, 24777, 207, 215, 67, 53, 549] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 08:22:36] [INFO ] Flow matrix only has 194 transitions (discarded 100 similar events)
[2025-06-01 08:22:36] [INFO ] Invariant cache hit.
[2025-06-01 08:22:36] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2025-06-01 08:22:36] [INFO ] [Real]Absence check using state equation in 64 ms returned sat
[2025-06-01 08:22:36] [INFO ] State equation strengthened by 33 read => feed constraints.
[2025-06-01 08:22:36] [INFO ] [Real]Added 33 Read/Feed constraints in 8 ms returned sat
[2025-06-01 08:22:36] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:22:36] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:22:36] [INFO ] [Nat]Absence check using state equation in 56 ms returned sat
[2025-06-01 08:22:36] [INFO ] [Nat]Added 33 Read/Feed constraints in 9 ms returned sat
[2025-06-01 08:22:37] [INFO ] Computed and/alt/rep : 46/184/45 causal constraints (skipped 147 transitions) in 14 ms.
[2025-06-01 08:22:37] [INFO ] Added : 5 causal constraints over 3 iterations in 77 ms. Result :sat
Minimization took 45 ms.
[2025-06-01 08:22:37] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:22:37] [INFO ] [Real]Absence check using state equation in 73 ms returned sat
[2025-06-01 08:22:37] [INFO ] [Real]Added 33 Read/Feed constraints in 8 ms returned sat
[2025-06-01 08:22:37] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:22:37] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 08:22:37] [INFO ] [Nat]Absence check using state equation in 89 ms returned sat
[2025-06-01 08:22:37] [INFO ] [Nat]Added 33 Read/Feed constraints in 12 ms returned sat
[2025-06-01 08:22:37] [INFO ] Computed and/alt/rep : 46/184/45 causal constraints (skipped 147 transitions) in 24 ms.
[2025-06-01 08:22:37] [INFO ] Added : 8 causal constraints over 2 iterations in 92 ms. Result :sat
Minimization took 67 ms.
[2025-06-01 08:22:37] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:22:37] [INFO ] [Real]Absence check using state equation in 91 ms returned sat
[2025-06-01 08:22:37] [INFO ] [Real]Added 33 Read/Feed constraints in 12 ms returned sat
[2025-06-01 08:22:37] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:22:37] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 08:22:37] [INFO ] [Nat]Absence check using state equation in 102 ms returned sat
[2025-06-01 08:22:37] [INFO ] [Nat]Added 33 Read/Feed constraints in 10 ms returned sat
[2025-06-01 08:22:38] [INFO ] Computed and/alt/rep : 46/184/45 causal constraints (skipped 147 transitions) in 29 ms.
[2025-06-01 08:22:38] [INFO ] Deduced a trap composed of 29 places in 144 ms of which 3 ms to minimize.
[2025-06-01 08:22:38] [INFO ] Deduced a trap composed of 27 places in 144 ms of which 2 ms to minimize.
[2025-06-01 08:22:38] [INFO ] Deduced a trap composed of 23 places in 129 ms of which 2 ms to minimize.
[2025-06-01 08:22:38] [INFO ] Trap strengthening (SAT) tested/added 4/3 trap constraints in 485 ms
[2025-06-01 08:22:38] [INFO ] Added : 15 causal constraints over 4 iterations in 651 ms. Result :sat
Minimization took 73 ms.
[2025-06-01 08:22:38] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 08:22:38] [INFO ] [Real]Absence check using state equation in 80 ms returned sat
[2025-06-01 08:22:38] [INFO ] [Real]Added 33 Read/Feed constraints in 9 ms returned sat
[2025-06-01 08:22:38] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:22:38] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 08:22:39] [INFO ] [Nat]Absence check using state equation in 89 ms returned sat
[2025-06-01 08:22:39] [INFO ] [Nat]Added 33 Read/Feed constraints in 15 ms returned sat
[2025-06-01 08:22:39] [INFO ] Computed and/alt/rep : 46/184/45 causal constraints (skipped 147 transitions) in 18 ms.
[2025-06-01 08:22:39] [INFO ] Deduced a trap composed of 25 places in 78 ms of which 2 ms to minimize.
[2025-06-01 08:22:39] [INFO ] Deduced a trap composed of 23 places in 82 ms of which 2 ms to minimize.
[2025-06-01 08:22:39] [INFO ] Deduced a trap composed of 20 places in 80 ms of which 2 ms to minimize.
[2025-06-01 08:22:39] [INFO ] Trap strengthening (SAT) tested/added 4/3 trap constraints in 295 ms
[2025-06-01 08:22:39] [INFO ] Added : 6 causal constraints over 3 iterations in 395 ms. Result :sat
Minimization took 74 ms.
[2025-06-01 08:22:39] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:22:39] [INFO ] [Real]Absence check using state equation in 82 ms returned sat
[2025-06-01 08:22:39] [INFO ] [Real]Added 33 Read/Feed constraints in 10 ms returned sat
[2025-06-01 08:22:39] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:22:39] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:22:39] [INFO ] [Nat]Absence check using state equation in 82 ms returned sat
[2025-06-01 08:22:39] [INFO ] [Nat]Added 33 Read/Feed constraints in 10 ms returned sat
[2025-06-01 08:22:39] [INFO ] Deduced a trap composed of 27 places in 101 ms of which 2 ms to minimize.
[2025-06-01 08:22:39] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 122 ms
[2025-06-01 08:22:39] [INFO ] Computed and/alt/rep : 46/184/45 causal constraints (skipped 147 transitions) in 19 ms.
[2025-06-01 08:22:40] [INFO ] Deduced a trap composed of 44 places in 98 ms of which 2 ms to minimize.
[2025-06-01 08:22:40] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 124 ms
[2025-06-01 08:22:40] [INFO ] Added : 5 causal constraints over 3 iterations in 218 ms. Result :sat
Minimization took 74 ms.
[2025-06-01 08:22:40] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:22:40] [INFO ] [Real]Absence check using state equation in 102 ms returned sat
[2025-06-01 08:22:40] [INFO ] [Real]Added 33 Read/Feed constraints in 12 ms returned sat
[2025-06-01 08:22:40] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:22:40] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 08:22:40] [INFO ] [Nat]Absence check using state equation in 101 ms returned sat
[2025-06-01 08:22:40] [INFO ] [Nat]Added 33 Read/Feed constraints in 12 ms returned sat
[2025-06-01 08:22:40] [INFO ] Computed and/alt/rep : 46/184/45 causal constraints (skipped 147 transitions) in 24 ms.
[2025-06-01 08:22:40] [INFO ] Deduced a trap composed of 28 places in 148 ms of which 2 ms to minimize.
[2025-06-01 08:22:40] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 179 ms
[2025-06-01 08:22:40] [INFO ] Added : 5 causal constraints over 2 iterations in 289 ms. Result :sat
Minimization took 71 ms.
[2025-06-01 08:22:41] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 08:22:41] [INFO ] [Real]Absence check using state equation in 101 ms returned sat
[2025-06-01 08:22:41] [INFO ] [Real]Added 33 Read/Feed constraints in 15 ms returned sat
[2025-06-01 08:22:41] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:22:41] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 08:22:41] [INFO ] [Nat]Absence check using state equation in 103 ms returned sat
[2025-06-01 08:22:41] [INFO ] [Nat]Added 33 Read/Feed constraints in 13 ms returned sat
[2025-06-01 08:22:41] [INFO ] Computed and/alt/rep : 46/184/45 causal constraints (skipped 147 transitions) in 23 ms.
[2025-06-01 08:22:41] [INFO ] Deduced a trap composed of 30 places in 138 ms of which 3 ms to minimize.
[2025-06-01 08:22:41] [INFO ] Deduced a trap composed of 22 places in 130 ms of which 3 ms to minimize.
[2025-06-01 08:22:41] [INFO ] Deduced a trap composed of 33 places in 95 ms of which 2 ms to minimize.
[2025-06-01 08:22:41] [INFO ] Trap strengthening (SAT) tested/added 4/3 trap constraints in 432 ms
[2025-06-01 08:22:41] [INFO ] Added : 13 causal constraints over 5 iterations in 590 ms. Result :sat
Minimization took 79 ms.
[2025-06-01 08:22:42] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 08:22:42] [INFO ] [Real]Absence check using state equation in 67 ms returned sat
[2025-06-01 08:22:42] [INFO ] [Real]Added 33 Read/Feed constraints in 9 ms returned sat
[2025-06-01 08:22:42] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:22:42] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 08:22:42] [INFO ] [Nat]Absence check using state equation in 101 ms returned sat
[2025-06-01 08:22:42] [INFO ] [Nat]Added 33 Read/Feed constraints in 14 ms returned sat
[2025-06-01 08:22:42] [INFO ] Deduced a trap composed of 42 places in 137 ms of which 2 ms to minimize.
[2025-06-01 08:22:42] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 161 ms
[2025-06-01 08:22:42] [INFO ] Computed and/alt/rep : 46/184/45 causal constraints (skipped 147 transitions) in 24 ms.
[2025-06-01 08:22:42] [INFO ] Added : 17 causal constraints over 5 iterations in 157 ms. Result :sat
Minimization took 82 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[554, 54, 24777, 207, 215, 67, 53, 549] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[554, 54, 25157, 435, 215, 67, 53, 549] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
Support contains 8 out of 121 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 121/121 places, 294/294 transitions.
Applied a total of 0 rules in 12 ms. Remains 121 /121 variables (removed 0) and now considering 294/294 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 13 ms. Remains : 121/121 places, 294/294 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 121/121 places, 294/294 transitions.
Applied a total of 0 rules in 11 ms. Remains 121 /121 variables (removed 0) and now considering 294/294 (removed 0) transitions.
[2025-06-01 08:23:14] [INFO ] Flow matrix only has 194 transitions (discarded 100 similar events)
[2025-06-01 08:23:14] [INFO ] Invariant cache hit.
[2025-06-01 08:23:14] [INFO ] Implicit Places using invariants in 176 ms returned []
[2025-06-01 08:23:14] [INFO ] Flow matrix only has 194 transitions (discarded 100 similar events)
[2025-06-01 08:23:14] [INFO ] Invariant cache hit.
[2025-06-01 08:23:14] [INFO ] State equation strengthened by 33 read => feed constraints.
[2025-06-01 08:23:15] [INFO ] Implicit Places using invariants and state equation in 442 ms returned []
Implicit Place search using SMT with State Equation took 621 ms to find 0 implicit places.
[2025-06-01 08:23:15] [INFO ] Redundant transitions in 29 ms returned []
Running 292 sub problems to find dead transitions.
[2025-06-01 08:23:15] [INFO ] Flow matrix only has 194 transitions (discarded 100 similar events)
[2025-06-01 08:23:15] [INFO ] Invariant cache hit.
[2025-06-01 08:23:15] [INFO ] State equation strengthened by 33 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/120 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 292 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/120 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 292 unsolved
At refinement iteration 2 (OVERLAPS) 194/314 variables, 120/123 constraints. Problems are: Problem set: 0 solved, 292 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/314 variables, 33/156 constraints. Problems are: Problem set: 0 solved, 292 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/314 variables, 0/156 constraints. Problems are: Problem set: 0 solved, 292 unsolved
At refinement iteration 5 (OVERLAPS) 1/315 variables, 1/157 constraints. Problems are: Problem set: 0 solved, 292 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/315 variables, 0/157 constraints. Problems are: Problem set: 0 solved, 292 unsolved
At refinement iteration 7 (OVERLAPS) 0/315 variables, 0/157 constraints. Problems are: Problem set: 0 solved, 292 unsolved
No progress, stopping.
After SMT solving in domain Real declared 315/315 variables, and 157 constraints, problems are : Problem set: 0 solved, 292 unsolved in 14534 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 121/121 constraints, ReadFeed: 33/33 constraints, PredecessorRefiner: 292/292 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 292 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/120 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 292 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/120 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 292 unsolved
At refinement iteration 2 (OVERLAPS) 194/314 variables, 120/123 constraints. Problems are: Problem set: 0 solved, 292 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/314 variables, 33/156 constraints. Problems are: Problem set: 0 solved, 292 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/314 variables, 32/188 constraints. Problems are: Problem set: 0 solved, 292 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/314 variables, 0/188 constraints. Problems are: Problem set: 0 solved, 292 unsolved
At refinement iteration 6 (OVERLAPS) 1/315 variables, 1/189 constraints. Problems are: Problem set: 0 solved, 292 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/315 variables, 260/449 constraints. Problems are: Problem set: 0 solved, 292 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/315 variables, 0/449 constraints. Problems are: Problem set: 0 solved, 292 unsolved
At refinement iteration 9 (OVERLAPS) 0/315 variables, 0/449 constraints. Problems are: Problem set: 0 solved, 292 unsolved
No progress, stopping.
After SMT solving in domain Int declared 315/315 variables, and 449 constraints, problems are : Problem set: 0 solved, 292 unsolved in 20726 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 121/121 constraints, ReadFeed: 33/33 constraints, PredecessorRefiner: 292/292 constraints, Known Traps: 0/0 constraints]
After SMT, in 36004ms problems are : Problem set: 0 solved, 292 unsolved
Search for dead transitions found 0 dead transitions in 36034ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 36726 ms. Remains : 121/121 places, 294/294 transitions.
[2025-06-01 08:23:51] [INFO ] Flow matrix only has 194 transitions (discarded 100 similar events)
Found an invariant !
This invariant on transitions {25=1, 34=1, 92=1, 147=1, 189=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {31=1, 98=1, 153=1, 189=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 50 ms. (steps per millisecond=200 ) properties (out of 8) seen :[8, 3, 14, 7, 14, 4, 3, 5]
Current structural bounds on expressions (after cover walk) : Max Seen:[554, 54, 25157, 435, 215, 67, 53, 549] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 08:23:51] [INFO ] Flow matrix only has 194 transitions (discarded 100 similar events)
[2025-06-01 08:23:51] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[554, 54, 25157, 435, 215, 67, 53, 549] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 1651 ms. (605 steps per ms)
BEST_FIRST walk for 8000008 steps (16 resets) in 9999 ms. (800 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[554, 54, 25157, 435, 215, 67, 53, 549] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 08:24:02] [INFO ] Flow matrix only has 194 transitions (discarded 100 similar events)
[2025-06-01 08:24:02] [INFO ] Invariant cache hit.
[2025-06-01 08:24:02] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:24:03] [INFO ] [Real]Absence check using state equation in 63 ms returned sat
[2025-06-01 08:24:03] [INFO ] State equation strengthened by 33 read => feed constraints.
[2025-06-01 08:24:03] [INFO ] [Real]Added 33 Read/Feed constraints in 8 ms returned sat
[2025-06-01 08:24:03] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:24:03] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:24:03] [INFO ] [Nat]Absence check using state equation in 68 ms returned sat
[2025-06-01 08:24:03] [INFO ] [Nat]Added 33 Read/Feed constraints in 9 ms returned sat
[2025-06-01 08:24:03] [INFO ] Computed and/alt/rep : 46/184/45 causal constraints (skipped 147 transitions) in 15 ms.
[2025-06-01 08:24:03] [INFO ] Added : 5 causal constraints over 3 iterations in 70 ms. Result :sat
Minimization took 52 ms.
[2025-06-01 08:24:03] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 08:24:03] [INFO ] [Real]Absence check using state equation in 71 ms returned sat
[2025-06-01 08:24:03] [INFO ] [Real]Added 33 Read/Feed constraints in 8 ms returned sat
[2025-06-01 08:24:03] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:24:03] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 08:24:03] [INFO ] [Nat]Absence check using state equation in 72 ms returned sat
[2025-06-01 08:24:03] [INFO ] [Nat]Added 33 Read/Feed constraints in 9 ms returned sat
[2025-06-01 08:24:03] [INFO ] Computed and/alt/rep : 46/184/45 causal constraints (skipped 147 transitions) in 17 ms.
[2025-06-01 08:24:03] [INFO ] Added : 8 causal constraints over 2 iterations in 66 ms. Result :sat
Minimization took 46 ms.
[2025-06-01 08:24:03] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:24:03] [INFO ] [Real]Absence check using state equation in 87 ms returned sat
[2025-06-01 08:24:03] [INFO ] [Real]Added 33 Read/Feed constraints in 14 ms returned sat
[2025-06-01 08:24:03] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:24:03] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:24:04] [INFO ] [Nat]Absence check using state equation in 84 ms returned sat
[2025-06-01 08:24:04] [INFO ] [Nat]Added 33 Read/Feed constraints in 9 ms returned sat
[2025-06-01 08:24:04] [INFO ] Computed and/alt/rep : 46/184/45 causal constraints (skipped 147 transitions) in 22 ms.
[2025-06-01 08:24:04] [INFO ] Deduced a trap composed of 29 places in 94 ms of which 2 ms to minimize.
[2025-06-01 08:24:04] [INFO ] Deduced a trap composed of 27 places in 144 ms of which 3 ms to minimize.
[2025-06-01 08:24:04] [INFO ] Deduced a trap composed of 23 places in 139 ms of which 3 ms to minimize.
[2025-06-01 08:24:04] [INFO ] Trap strengthening (SAT) tested/added 4/3 trap constraints in 433 ms
[2025-06-01 08:24:04] [INFO ] Added : 15 causal constraints over 4 iterations in 556 ms. Result :sat
Minimization took 49 ms.
[2025-06-01 08:24:04] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 08:24:04] [INFO ] [Real]Absence check using state equation in 99 ms returned sat
[2025-06-01 08:24:04] [INFO ] [Real]Added 33 Read/Feed constraints in 15 ms returned sat
[2025-06-01 08:24:04] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:24:04] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 08:24:04] [INFO ] [Nat]Absence check using state equation in 85 ms returned sat
[2025-06-01 08:24:04] [INFO ] [Nat]Added 33 Read/Feed constraints in 11 ms returned sat
[2025-06-01 08:24:05] [INFO ] Computed and/alt/rep : 46/184/45 causal constraints (skipped 147 transitions) in 20 ms.
[2025-06-01 08:24:05] [INFO ] Deduced a trap composed of 25 places in 96 ms of which 3 ms to minimize.
[2025-06-01 08:24:05] [INFO ] Deduced a trap composed of 23 places in 100 ms of which 4 ms to minimize.
[2025-06-01 08:24:05] [INFO ] Deduced a trap composed of 20 places in 99 ms of which 2 ms to minimize.
[2025-06-01 08:24:05] [INFO ] Trap strengthening (SAT) tested/added 4/3 trap constraints in 351 ms
[2025-06-01 08:24:05] [INFO ] Added : 6 causal constraints over 3 iterations in 449 ms. Result :sat
Minimization took 49 ms.
[2025-06-01 08:24:05] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 08:24:05] [INFO ] [Real]Absence check using state equation in 62 ms returned sat
[2025-06-01 08:24:05] [INFO ] [Real]Added 33 Read/Feed constraints in 10 ms returned sat
[2025-06-01 08:24:05] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:24:05] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 08:24:05] [INFO ] [Nat]Absence check using state equation in 102 ms returned sat
[2025-06-01 08:24:05] [INFO ] [Nat]Added 33 Read/Feed constraints in 13 ms returned sat
[2025-06-01 08:24:05] [INFO ] Deduced a trap composed of 27 places in 100 ms of which 2 ms to minimize.
[2025-06-01 08:24:05] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 122 ms
[2025-06-01 08:24:05] [INFO ] Computed and/alt/rep : 46/184/45 causal constraints (skipped 147 transitions) in 28 ms.
[2025-06-01 08:24:06] [INFO ] Deduced a trap composed of 44 places in 152 ms of which 3 ms to minimize.
[2025-06-01 08:24:06] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 178 ms
[2025-06-01 08:24:06] [INFO ] Added : 5 causal constraints over 3 iterations in 287 ms. Result :sat
Minimization took 48 ms.
[2025-06-01 08:24:06] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:24:06] [INFO ] [Real]Absence check using state equation in 100 ms returned sat
[2025-06-01 08:24:06] [INFO ] [Real]Added 33 Read/Feed constraints in 13 ms returned sat
[2025-06-01 08:24:06] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:24:06] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:24:06] [INFO ] [Nat]Absence check using state equation in 82 ms returned sat
[2025-06-01 08:24:06] [INFO ] [Nat]Added 33 Read/Feed constraints in 9 ms returned sat
[2025-06-01 08:24:06] [INFO ] Computed and/alt/rep : 46/184/45 causal constraints (skipped 147 transitions) in 22 ms.
[2025-06-01 08:24:06] [INFO ] Deduced a trap composed of 28 places in 93 ms of which 2 ms to minimize.
[2025-06-01 08:24:06] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 117 ms
[2025-06-01 08:24:06] [INFO ] Added : 5 causal constraints over 2 iterations in 204 ms. Result :sat
Minimization took 44 ms.
[2025-06-01 08:24:06] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:24:06] [INFO ] [Real]Absence check using state equation in 81 ms returned sat
[2025-06-01 08:24:07] [INFO ] [Real]Added 33 Read/Feed constraints in 11 ms returned sat
[2025-06-01 08:24:07] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:24:07] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 08:24:07] [INFO ] [Nat]Absence check using state equation in 102 ms returned sat
[2025-06-01 08:24:07] [INFO ] [Nat]Added 33 Read/Feed constraints in 15 ms returned sat
[2025-06-01 08:24:07] [INFO ] Computed and/alt/rep : 46/184/45 causal constraints (skipped 147 transitions) in 24 ms.
[2025-06-01 08:24:07] [INFO ] Deduced a trap composed of 30 places in 143 ms of which 3 ms to minimize.
[2025-06-01 08:24:07] [INFO ] Deduced a trap composed of 22 places in 144 ms of which 3 ms to minimize.
[2025-06-01 08:24:07] [INFO ] Deduced a trap composed of 33 places in 145 ms of which 2 ms to minimize.
[2025-06-01 08:24:07] [INFO ] Trap strengthening (SAT) tested/added 4/3 trap constraints in 484 ms
[2025-06-01 08:24:07] [INFO ] Added : 13 causal constraints over 5 iterations in 611 ms. Result :sat
Minimization took 50 ms.
[2025-06-01 08:24:07] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:24:07] [INFO ] [Real]Absence check using state equation in 70 ms returned sat
[2025-06-01 08:24:07] [INFO ] [Real]Added 33 Read/Feed constraints in 9 ms returned sat
[2025-06-01 08:24:08] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:24:08] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:24:08] [INFO ] [Nat]Absence check using state equation in 83 ms returned sat
[2025-06-01 08:24:08] [INFO ] [Nat]Added 33 Read/Feed constraints in 9 ms returned sat
[2025-06-01 08:24:08] [INFO ] Deduced a trap composed of 42 places in 147 ms of which 3 ms to minimize.
[2025-06-01 08:24:08] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 165 ms
[2025-06-01 08:24:08] [INFO ] Computed and/alt/rep : 46/184/45 causal constraints (skipped 147 transitions) in 15 ms.
[2025-06-01 08:24:08] [INFO ] Added : 17 causal constraints over 5 iterations in 119 ms. Result :sat
Minimization took 81 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[554, 54, 25157, 435, 215, 67, 53, 549] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[554, 54, 25157, 435, 311, 67, 53, 549] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
Support contains 8 out of 121 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 121/121 places, 294/294 transitions.
Applied a total of 0 rules in 13 ms. Remains 121 /121 variables (removed 0) and now considering 294/294 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 14 ms. Remains : 121/121 places, 294/294 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 121/121 places, 294/294 transitions.
Applied a total of 0 rules in 8 ms. Remains 121 /121 variables (removed 0) and now considering 294/294 (removed 0) transitions.
[2025-06-01 08:24:40] [INFO ] Flow matrix only has 194 transitions (discarded 100 similar events)
[2025-06-01 08:24:40] [INFO ] Invariant cache hit.
[2025-06-01 08:24:40] [INFO ] Implicit Places using invariants in 230 ms returned []
[2025-06-01 08:24:40] [INFO ] Flow matrix only has 194 transitions (discarded 100 similar events)
[2025-06-01 08:24:40] [INFO ] Invariant cache hit.
[2025-06-01 08:24:40] [INFO ] State equation strengthened by 33 read => feed constraints.
[2025-06-01 08:24:40] [INFO ] Implicit Places using invariants and state equation in 270 ms returned []
Implicit Place search using SMT with State Equation took 502 ms to find 0 implicit places.
[2025-06-01 08:24:40] [INFO ] Redundant transitions in 4 ms returned []
Running 292 sub problems to find dead transitions.
[2025-06-01 08:24:40] [INFO ] Flow matrix only has 194 transitions (discarded 100 similar events)
[2025-06-01 08:24:40] [INFO ] Invariant cache hit.
[2025-06-01 08:24:40] [INFO ] State equation strengthened by 33 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/120 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 292 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/120 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 292 unsolved
At refinement iteration 2 (OVERLAPS) 194/314 variables, 120/123 constraints. Problems are: Problem set: 0 solved, 292 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/314 variables, 33/156 constraints. Problems are: Problem set: 0 solved, 292 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/314 variables, 0/156 constraints. Problems are: Problem set: 0 solved, 292 unsolved
At refinement iteration 5 (OVERLAPS) 1/315 variables, 1/157 constraints. Problems are: Problem set: 0 solved, 292 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/315 variables, 0/157 constraints. Problems are: Problem set: 0 solved, 292 unsolved
At refinement iteration 7 (OVERLAPS) 0/315 variables, 0/157 constraints. Problems are: Problem set: 0 solved, 292 unsolved
No progress, stopping.
After SMT solving in domain Real declared 315/315 variables, and 157 constraints, problems are : Problem set: 0 solved, 292 unsolved in 15639 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 121/121 constraints, ReadFeed: 33/33 constraints, PredecessorRefiner: 292/292 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 292 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/120 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 292 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/120 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 292 unsolved
At refinement iteration 2 (OVERLAPS) 194/314 variables, 120/123 constraints. Problems are: Problem set: 0 solved, 292 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/314 variables, 33/156 constraints. Problems are: Problem set: 0 solved, 292 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/314 variables, 32/188 constraints. Problems are: Problem set: 0 solved, 292 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/314 variables, 0/188 constraints. Problems are: Problem set: 0 solved, 292 unsolved
At refinement iteration 6 (OVERLAPS) 1/315 variables, 1/189 constraints. Problems are: Problem set: 0 solved, 292 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/315 variables, 260/449 constraints. Problems are: Problem set: 0 solved, 292 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/315 variables, 0/449 constraints. Problems are: Problem set: 0 solved, 292 unsolved
At refinement iteration 9 (OVERLAPS) 0/315 variables, 0/449 constraints. Problems are: Problem set: 0 solved, 292 unsolved
No progress, stopping.
After SMT solving in domain Int declared 315/315 variables, and 449 constraints, problems are : Problem set: 0 solved, 292 unsolved in 17878 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 121/121 constraints, ReadFeed: 33/33 constraints, PredecessorRefiner: 292/292 constraints, Known Traps: 0/0 constraints]
After SMT, in 33970ms problems are : Problem set: 0 solved, 292 unsolved
Search for dead transitions found 0 dead transitions in 33975ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 34497 ms. Remains : 121/121 places, 294/294 transitions.
[2025-06-01 08:25:14] [INFO ] Flow matrix only has 194 transitions (discarded 100 similar events)
Found an invariant !
This invariant on transitions {25=1, 34=1, 92=1, 147=1, 189=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {31=1, 98=1, 153=1, 189=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 71 ms. (steps per millisecond=140 ) properties (out of 8) seen :[7, 2, 14, 8, 7, 3, 2, 9]
Current structural bounds on expressions (after cover walk) : Max Seen:[554, 54, 25157, 435, 311, 67, 53, 549] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 08:25:14] [INFO ] Flow matrix only has 194 transitions (discarded 100 similar events)
[2025-06-01 08:25:14] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[554, 54, 25157, 435, 311, 67, 53, 549] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 1626 ms. (614 steps per ms)
BEST_FIRST walk for 8000008 steps (16 resets) in 9473 ms. (844 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[554, 54, 25157, 435, 311, 67, 57, 604] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 08:25:26] [INFO ] Flow matrix only has 194 transitions (discarded 100 similar events)
[2025-06-01 08:25:26] [INFO ] Invariant cache hit.
[2025-06-01 08:25:26] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:25:26] [INFO ] [Real]Absence check using state equation in 61 ms returned sat
[2025-06-01 08:25:26] [INFO ] State equation strengthened by 33 read => feed constraints.
[2025-06-01 08:25:26] [INFO ] [Real]Added 33 Read/Feed constraints in 9 ms returned sat
[2025-06-01 08:25:26] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:25:26] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:25:26] [INFO ] [Nat]Absence check using state equation in 69 ms returned sat
[2025-06-01 08:25:26] [INFO ] [Nat]Added 33 Read/Feed constraints in 9 ms returned sat
[2025-06-01 08:25:26] [INFO ] Computed and/alt/rep : 46/184/45 causal constraints (skipped 147 transitions) in 15 ms.
[2025-06-01 08:25:26] [INFO ] Added : 5 causal constraints over 3 iterations in 72 ms. Result :sat
Minimization took 49 ms.
[2025-06-01 08:25:26] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 08:25:26] [INFO ] [Real]Absence check using state equation in 68 ms returned sat
[2025-06-01 08:25:26] [INFO ] [Real]Added 33 Read/Feed constraints in 7 ms returned sat
[2025-06-01 08:25:26] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:25:26] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:25:26] [INFO ] [Nat]Absence check using state equation in 64 ms returned sat
[2025-06-01 08:25:26] [INFO ] [Nat]Added 33 Read/Feed constraints in 8 ms returned sat
[2025-06-01 08:25:26] [INFO ] Computed and/alt/rep : 46/184/45 causal constraints (skipped 147 transitions) in 16 ms.
[2025-06-01 08:25:26] [INFO ] Added : 8 causal constraints over 2 iterations in 60 ms. Result :sat
Minimization took 43 ms.
[2025-06-01 08:25:26] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:25:26] [INFO ] [Real]Absence check using state equation in 61 ms returned sat
[2025-06-01 08:25:26] [INFO ] [Real]Added 33 Read/Feed constraints in 8 ms returned sat
[2025-06-01 08:25:26] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:25:26] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:25:26] [INFO ] [Nat]Absence check using state equation in 65 ms returned sat
[2025-06-01 08:25:26] [INFO ] [Nat]Added 33 Read/Feed constraints in 7 ms returned sat
[2025-06-01 08:25:27] [INFO ] Computed and/alt/rep : 46/184/45 causal constraints (skipped 147 transitions) in 14 ms.
[2025-06-01 08:25:27] [INFO ] Deduced a trap composed of 29 places in 76 ms of which 2 ms to minimize.
[2025-06-01 08:25:27] [INFO ] Deduced a trap composed of 27 places in 79 ms of which 2 ms to minimize.
[2025-06-01 08:25:27] [INFO ] Deduced a trap composed of 23 places in 80 ms of which 1 ms to minimize.
[2025-06-01 08:25:27] [INFO ] Trap strengthening (SAT) tested/added 4/3 trap constraints in 277 ms
[2025-06-01 08:25:27] [INFO ] Added : 15 causal constraints over 4 iterations in 368 ms. Result :sat
Minimization took 45 ms.
[2025-06-01 08:25:27] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:25:27] [INFO ] [Real]Absence check using state equation in 67 ms returned sat
[2025-06-01 08:25:27] [INFO ] [Real]Added 33 Read/Feed constraints in 10 ms returned sat
[2025-06-01 08:25:27] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:25:27] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:25:27] [INFO ] [Nat]Absence check using state equation in 65 ms returned sat
[2025-06-01 08:25:27] [INFO ] [Nat]Added 33 Read/Feed constraints in 11 ms returned sat
[2025-06-01 08:25:27] [INFO ] Computed and/alt/rep : 46/184/45 causal constraints (skipped 147 transitions) in 15 ms.
[2025-06-01 08:25:27] [INFO ] Deduced a trap composed of 25 places in 85 ms of which 1 ms to minimize.
[2025-06-01 08:25:27] [INFO ] Deduced a trap composed of 23 places in 92 ms of which 2 ms to minimize.
[2025-06-01 08:25:28] [INFO ] Deduced a trap composed of 20 places in 96 ms of which 1 ms to minimize.
[2025-06-01 08:25:28] [INFO ] Trap strengthening (SAT) tested/added 4/3 trap constraints in 346 ms
[2025-06-01 08:25:28] [INFO ] Added : 6 causal constraints over 3 iterations in 430 ms. Result :sat
Minimization took 53 ms.
[2025-06-01 08:25:28] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 08:25:28] [INFO ] [Real]Absence check using state equation in 62 ms returned sat
[2025-06-01 08:25:28] [INFO ] [Real]Added 33 Read/Feed constraints in 9 ms returned sat
[2025-06-01 08:25:28] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:25:28] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:25:28] [INFO ] [Nat]Absence check using state equation in 64 ms returned sat
[2025-06-01 08:25:28] [INFO ] [Nat]Added 33 Read/Feed constraints in 7 ms returned sat
[2025-06-01 08:25:28] [INFO ] Deduced a trap composed of 27 places in 78 ms of which 2 ms to minimize.
[2025-06-01 08:25:28] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 94 ms
[2025-06-01 08:25:28] [INFO ] Computed and/alt/rep : 46/184/45 causal constraints (skipped 147 transitions) in 15 ms.
[2025-06-01 08:25:28] [INFO ] Deduced a trap composed of 44 places in 103 ms of which 2 ms to minimize.
[2025-06-01 08:25:28] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 125 ms
[2025-06-01 08:25:28] [INFO ] Added : 5 causal constraints over 3 iterations in 201 ms. Result :sat
Minimization took 45 ms.
[2025-06-01 08:25:28] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:25:28] [INFO ] [Real]Absence check using state equation in 68 ms returned sat
[2025-06-01 08:25:28] [INFO ] [Real]Added 33 Read/Feed constraints in 8 ms returned sat
[2025-06-01 08:25:28] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:25:28] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 08:25:28] [INFO ] [Nat]Absence check using state equation in 73 ms returned sat
[2025-06-01 08:25:28] [INFO ] [Nat]Added 33 Read/Feed constraints in 7 ms returned sat
[2025-06-01 08:25:29] [INFO ] Computed and/alt/rep : 46/184/45 causal constraints (skipped 147 transitions) in 16 ms.
[2025-06-01 08:25:29] [INFO ] Deduced a trap composed of 28 places in 80 ms of which 1 ms to minimize.
[2025-06-01 08:25:29] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 99 ms
[2025-06-01 08:25:29] [INFO ] Added : 5 causal constraints over 2 iterations in 167 ms. Result :sat
Minimization took 42 ms.
[2025-06-01 08:25:29] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 08:25:29] [INFO ] [Real]Absence check using state equation in 69 ms returned sat
[2025-06-01 08:25:29] [INFO ] [Real]Added 33 Read/Feed constraints in 10 ms returned sat
[2025-06-01 08:25:29] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:25:29] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 08:25:29] [INFO ] [Nat]Absence check using state equation in 64 ms returned sat
[2025-06-01 08:25:29] [INFO ] [Nat]Added 33 Read/Feed constraints in 8 ms returned sat
[2025-06-01 08:25:29] [INFO ] Computed and/alt/rep : 46/184/45 causal constraints (skipped 147 transitions) in 14 ms.
[2025-06-01 08:25:29] [INFO ] Deduced a trap composed of 30 places in 80 ms of which 1 ms to minimize.
[2025-06-01 08:25:29] [INFO ] Deduced a trap composed of 22 places in 94 ms of which 2 ms to minimize.
[2025-06-01 08:25:29] [INFO ] Deduced a trap composed of 33 places in 80 ms of which 1 ms to minimize.
[2025-06-01 08:25:29] [INFO ] Trap strengthening (SAT) tested/added 4/3 trap constraints in 297 ms
[2025-06-01 08:25:29] [INFO ] Added : 13 causal constraints over 5 iterations in 398 ms. Result :sat
Minimization took 49 ms.
[2025-06-01 08:25:29] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:25:30] [INFO ] [Real]Absence check using state equation in 70 ms returned sat
[2025-06-01 08:25:30] [INFO ] [Real]Added 33 Read/Feed constraints in 9 ms returned sat
[2025-06-01 08:25:30] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:25:30] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:25:30] [INFO ] [Nat]Absence check using state equation in 65 ms returned sat
[2025-06-01 08:25:30] [INFO ] [Nat]Added 33 Read/Feed constraints in 9 ms returned sat
[2025-06-01 08:25:30] [INFO ] Deduced a trap composed of 42 places in 80 ms of which 2 ms to minimize.
[2025-06-01 08:25:30] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 100 ms
[2025-06-01 08:25:30] [INFO ] Computed and/alt/rep : 46/184/45 causal constraints (skipped 147 transitions) in 16 ms.
[2025-06-01 08:25:30] [INFO ] Added : 17 causal constraints over 5 iterations in 99 ms. Result :sat
Minimization took 49 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[554, 54, 25157, 435, 311, 67, 57, 604] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[554, 54, 25157, 435, 377, 67, 57, 604] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
Support contains 8 out of 121 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 121/121 places, 294/294 transitions.
Applied a total of 0 rules in 8 ms. Remains 121 /121 variables (removed 0) and now considering 294/294 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 9 ms. Remains : 121/121 places, 294/294 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 121/121 places, 294/294 transitions.
Applied a total of 0 rules in 7 ms. Remains 121 /121 variables (removed 0) and now considering 294/294 (removed 0) transitions.
[2025-06-01 08:26:02] [INFO ] Flow matrix only has 194 transitions (discarded 100 similar events)
[2025-06-01 08:26:02] [INFO ] Invariant cache hit.
[2025-06-01 08:26:02] [INFO ] Implicit Places using invariants in 134 ms returned []
[2025-06-01 08:26:02] [INFO ] Flow matrix only has 194 transitions (discarded 100 similar events)
[2025-06-01 08:26:02] [INFO ] Invariant cache hit.
[2025-06-01 08:26:02] [INFO ] State equation strengthened by 33 read => feed constraints.
[2025-06-01 08:26:02] [INFO ] Implicit Places using invariants and state equation in 371 ms returned []
Implicit Place search using SMT with State Equation took 505 ms to find 0 implicit places.
[2025-06-01 08:26:02] [INFO ] Redundant transitions in 4 ms returned []
Running 292 sub problems to find dead transitions.
[2025-06-01 08:26:02] [INFO ] Flow matrix only has 194 transitions (discarded 100 similar events)
[2025-06-01 08:26:02] [INFO ] Invariant cache hit.
[2025-06-01 08:26:02] [INFO ] State equation strengthened by 33 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/120 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 292 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/120 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 292 unsolved
At refinement iteration 2 (OVERLAPS) 194/314 variables, 120/123 constraints. Problems are: Problem set: 0 solved, 292 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/314 variables, 33/156 constraints. Problems are: Problem set: 0 solved, 292 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/314 variables, 0/156 constraints. Problems are: Problem set: 0 solved, 292 unsolved
At refinement iteration 5 (OVERLAPS) 1/315 variables, 1/157 constraints. Problems are: Problem set: 0 solved, 292 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/315 variables, 0/157 constraints. Problems are: Problem set: 0 solved, 292 unsolved
At refinement iteration 7 (OVERLAPS) 0/315 variables, 0/157 constraints. Problems are: Problem set: 0 solved, 292 unsolved
No progress, stopping.
After SMT solving in domain Real declared 315/315 variables, and 157 constraints, problems are : Problem set: 0 solved, 292 unsolved in 15010 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 121/121 constraints, ReadFeed: 33/33 constraints, PredecessorRefiner: 292/292 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 292 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/120 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 292 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/120 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 292 unsolved
At refinement iteration 2 (OVERLAPS) 194/314 variables, 120/123 constraints. Problems are: Problem set: 0 solved, 292 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/314 variables, 33/156 constraints. Problems are: Problem set: 0 solved, 292 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/314 variables, 32/188 constraints. Problems are: Problem set: 0 solved, 292 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/314 variables, 0/188 constraints. Problems are: Problem set: 0 solved, 292 unsolved
At refinement iteration 6 (OVERLAPS) 1/315 variables, 1/189 constraints. Problems are: Problem set: 0 solved, 292 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/315 variables, 260/449 constraints. Problems are: Problem set: 0 solved, 292 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/315 variables, 0/449 constraints. Problems are: Problem set: 0 solved, 292 unsolved
At refinement iteration 9 (OVERLAPS) 0/315 variables, 0/449 constraints. Problems are: Problem set: 0 solved, 292 unsolved
No progress, stopping.
After SMT solving in domain Int declared 315/315 variables, and 449 constraints, problems are : Problem set: 0 solved, 292 unsolved in 21559 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 121/121 constraints, ReadFeed: 33/33 constraints, PredecessorRefiner: 292/292 constraints, Known Traps: 0/0 constraints]
After SMT, in 36858ms problems are : Problem set: 0 solved, 292 unsolved
Search for dead transitions found 0 dead transitions in 36861ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 37403 ms. Remains : 121/121 places, 294/294 transitions.
[2025-06-01 08:26:39] [INFO ] Flow matrix only has 194 transitions (discarded 100 similar events)
Found an invariant !
This invariant on transitions {25=1, 34=1, 92=1, 147=1, 189=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {31=1, 98=1, 153=1, 189=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 49 ms. (steps per millisecond=204 ) properties (out of 8) seen :[9, 3, 15, 7, 5, 4, 3, 8]
Current structural bounds on expressions (after cover walk) : Max Seen:[554, 54, 25157, 435, 377, 67, 57, 604] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 08:26:39] [INFO ] Flow matrix only has 194 transitions (discarded 100 similar events)
[2025-06-01 08:26:39] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[554, 54, 25157, 435, 377, 67, 57, 604] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000001 steps (2 resets) in 1920 ms. (520 steps per ms)
BEST_FIRST walk for 8000008 steps (16 resets) in 9593 ms. (833 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[554, 61, 25157, 435, 377, 67, 59, 604] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 08:26:51] [INFO ] Flow matrix only has 194 transitions (discarded 100 similar events)
[2025-06-01 08:26:51] [INFO ] Invariant cache hit.
[2025-06-01 08:26:51] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 08:26:51] [INFO ] [Real]Absence check using state equation in 69 ms returned sat
[2025-06-01 08:26:51] [INFO ] State equation strengthened by 33 read => feed constraints.
[2025-06-01 08:26:51] [INFO ] [Real]Added 33 Read/Feed constraints in 9 ms returned sat
[2025-06-01 08:26:51] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:26:51] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 08:26:51] [INFO ] [Nat]Absence check using state equation in 59 ms returned sat
[2025-06-01 08:26:51] [INFO ] [Nat]Added 33 Read/Feed constraints in 8 ms returned sat
[2025-06-01 08:26:51] [INFO ] Computed and/alt/rep : 46/184/45 causal constraints (skipped 147 transitions) in 14 ms.
[2025-06-01 08:26:51] [INFO ] Added : 5 causal constraints over 3 iterations in 67 ms. Result :sat
Minimization took 44 ms.
[2025-06-01 08:26:51] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:26:51] [INFO ] [Real]Absence check using state equation in 71 ms returned sat
[2025-06-01 08:26:51] [INFO ] [Real]Added 33 Read/Feed constraints in 8 ms returned sat
[2025-06-01 08:26:51] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:26:51] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 08:26:51] [INFO ] [Nat]Absence check using state equation in 59 ms returned sat
[2025-06-01 08:26:51] [INFO ] [Nat]Added 33 Read/Feed constraints in 8 ms returned sat
[2025-06-01 08:26:51] [INFO ] Computed and/alt/rep : 46/184/45 causal constraints (skipped 147 transitions) in 15 ms.
[2025-06-01 08:26:51] [INFO ] Added : 8 causal constraints over 2 iterations in 58 ms. Result :sat
Minimization took 44 ms.
[2025-06-01 08:26:52] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 08:26:52] [INFO ] [Real]Absence check using state equation in 67 ms returned sat
[2025-06-01 08:26:52] [INFO ] [Real]Added 33 Read/Feed constraints in 9 ms returned sat
[2025-06-01 08:26:52] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:26:52] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 08:26:52] [INFO ] [Nat]Absence check using state equation in 63 ms returned sat
[2025-06-01 08:26:52] [INFO ] [Nat]Added 33 Read/Feed constraints in 8 ms returned sat
[2025-06-01 08:26:52] [INFO ] Computed and/alt/rep : 46/184/45 causal constraints (skipped 147 transitions) in 15 ms.
[2025-06-01 08:26:52] [INFO ] Deduced a trap composed of 29 places in 91 ms of which 2 ms to minimize.
[2025-06-01 08:26:52] [INFO ] Deduced a trap composed of 27 places in 87 ms of which 1 ms to minimize.
[2025-06-01 08:26:52] [INFO ] Deduced a trap composed of 23 places in 86 ms of which 2 ms to minimize.
[2025-06-01 08:26:52] [INFO ] Trap strengthening (SAT) tested/added 4/3 trap constraints in 323 ms
[2025-06-01 08:26:52] [INFO ] Added : 15 causal constraints over 4 iterations in 420 ms. Result :sat
Minimization took 56 ms.
[2025-06-01 08:26:52] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:26:52] [INFO ] [Real]Absence check using state equation in 84 ms returned sat
[2025-06-01 08:26:52] [INFO ] [Real]Added 33 Read/Feed constraints in 10 ms returned sat
[2025-06-01 08:26:52] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:26:52] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:26:53] [INFO ] [Nat]Absence check using state equation in 101 ms returned sat
[2025-06-01 08:26:53] [INFO ] [Nat]Added 33 Read/Feed constraints in 15 ms returned sat
[2025-06-01 08:26:53] [INFO ] Computed and/alt/rep : 46/184/45 causal constraints (skipped 147 transitions) in 21 ms.
[2025-06-01 08:26:53] [INFO ] Deduced a trap composed of 25 places in 116 ms of which 4 ms to minimize.
[2025-06-01 08:26:53] [INFO ] Deduced a trap composed of 23 places in 96 ms of which 2 ms to minimize.
[2025-06-01 08:26:53] [INFO ] Deduced a trap composed of 20 places in 160 ms of which 3 ms to minimize.
[2025-06-01 08:26:53] [INFO ] Trap strengthening (SAT) tested/added 4/3 trap constraints in 431 ms
[2025-06-01 08:26:53] [INFO ] Added : 6 causal constraints over 3 iterations in 528 ms. Result :sat
Minimization took 46 ms.
[2025-06-01 08:26:53] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 08:26:53] [INFO ] [Real]Absence check using state equation in 81 ms returned sat
[2025-06-01 08:26:53] [INFO ] [Real]Added 33 Read/Feed constraints in 9 ms returned sat
[2025-06-01 08:26:53] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:26:53] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 08:26:53] [INFO ] [Nat]Absence check using state equation in 60 ms returned sat
[2025-06-01 08:26:53] [INFO ] [Nat]Added 33 Read/Feed constraints in 6 ms returned sat
[2025-06-01 08:26:54] [INFO ] Deduced a trap composed of 27 places in 83 ms of which 2 ms to minimize.
[2025-06-01 08:26:54] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 98 ms
[2025-06-01 08:26:54] [INFO ] Computed and/alt/rep : 46/184/45 causal constraints (skipped 147 transitions) in 18 ms.
[2025-06-01 08:26:54] [INFO ] Deduced a trap composed of 44 places in 93 ms of which 14 ms to minimize.
[2025-06-01 08:26:54] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 113 ms
[2025-06-01 08:26:54] [INFO ] Added : 5 causal constraints over 3 iterations in 190 ms. Result :sat
Minimization took 45 ms.
[2025-06-01 08:26:54] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:26:54] [INFO ] [Real]Absence check using state equation in 65 ms returned sat
[2025-06-01 08:26:54] [INFO ] [Real]Added 33 Read/Feed constraints in 8 ms returned sat
[2025-06-01 08:26:54] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:26:54] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 08:26:54] [INFO ] [Nat]Absence check using state equation in 64 ms returned sat
[2025-06-01 08:26:54] [INFO ] [Nat]Added 33 Read/Feed constraints in 8 ms returned sat
[2025-06-01 08:26:54] [INFO ] Computed and/alt/rep : 46/184/45 causal constraints (skipped 147 transitions) in 16 ms.
[2025-06-01 08:26:54] [INFO ] Deduced a trap composed of 28 places in 102 ms of which 2 ms to minimize.
[2025-06-01 08:26:54] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 122 ms
[2025-06-01 08:26:54] [INFO ] Added : 5 causal constraints over 2 iterations in 191 ms. Result :sat
Minimization took 47 ms.
[2025-06-01 08:26:54] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:26:54] [INFO ] [Real]Absence check using state equation in 60 ms returned sat
[2025-06-01 08:26:54] [INFO ] [Real]Added 33 Read/Feed constraints in 9 ms returned sat
[2025-06-01 08:26:54] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:26:54] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:26:55] [INFO ] [Nat]Absence check using state equation in 66 ms returned sat
[2025-06-01 08:26:55] [INFO ] [Nat]Added 33 Read/Feed constraints in 9 ms returned sat
[2025-06-01 08:26:55] [INFO ] Computed and/alt/rep : 46/184/45 causal constraints (skipped 147 transitions) in 15 ms.
[2025-06-01 08:26:55] [INFO ] Deduced a trap composed of 30 places in 92 ms of which 2 ms to minimize.
[2025-06-01 08:26:55] [INFO ] Deduced a trap composed of 22 places in 89 ms of which 1 ms to minimize.
[2025-06-01 08:26:55] [INFO ] Deduced a trap composed of 33 places in 82 ms of which 2 ms to minimize.
[2025-06-01 08:26:55] [INFO ] Trap strengthening (SAT) tested/added 4/3 trap constraints in 307 ms
[2025-06-01 08:26:55] [INFO ] Added : 13 causal constraints over 5 iterations in 408 ms. Result :sat
Minimization took 48 ms.
[2025-06-01 08:26:55] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:26:55] [INFO ] [Real]Absence check using state equation in 65 ms returned sat
[2025-06-01 08:26:55] [INFO ] [Real]Added 33 Read/Feed constraints in 8 ms returned sat
[2025-06-01 08:26:55] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:26:55] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 08:26:55] [INFO ] [Nat]Absence check using state equation in 64 ms returned sat
[2025-06-01 08:26:55] [INFO ] [Nat]Added 33 Read/Feed constraints in 8 ms returned sat
[2025-06-01 08:26:55] [INFO ] Deduced a trap composed of 42 places in 82 ms of which 1 ms to minimize.
[2025-06-01 08:26:55] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 97 ms
[2025-06-01 08:26:55] [INFO ] Computed and/alt/rep : 46/184/45 causal constraints (skipped 147 transitions) in 16 ms.
[2025-06-01 08:26:55] [INFO ] Added : 17 causal constraints over 5 iterations in 99 ms. Result :sat
Minimization took 51 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[554, 61, 25157, 435, 377, 67, 59, 604] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[554, 61, 26541, 435, 377, 67, 59, 841] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
Support contains 8 out of 121 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 121/121 places, 294/294 transitions.
Applied a total of 0 rules in 10 ms. Remains 121 /121 variables (removed 0) and now considering 294/294 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 10 ms. Remains : 121/121 places, 294/294 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 121/121 places, 294/294 transitions.
Applied a total of 0 rules in 7 ms. Remains 121 /121 variables (removed 0) and now considering 294/294 (removed 0) transitions.
[2025-06-01 08:27:28] [INFO ] Flow matrix only has 194 transitions (discarded 100 similar events)
[2025-06-01 08:27:28] [INFO ] Invariant cache hit.
[2025-06-01 08:27:28] [INFO ] Implicit Places using invariants in 131 ms returned []
[2025-06-01 08:27:28] [INFO ] Flow matrix only has 194 transitions (discarded 100 similar events)
[2025-06-01 08:27:28] [INFO ] Invariant cache hit.
[2025-06-01 08:27:28] [INFO ] State equation strengthened by 33 read => feed constraints.
[2025-06-01 08:27:28] [INFO ] Implicit Places using invariants and state equation in 251 ms returned []
Implicit Place search using SMT with State Equation took 392 ms to find 0 implicit places.
[2025-06-01 08:27:28] [INFO ] Redundant transitions in 2 ms returned []
Running 292 sub problems to find dead transitions.
[2025-06-01 08:27:28] [INFO ] Flow matrix only has 194 transitions (discarded 100 similar events)
[2025-06-01 08:27:28] [INFO ] Invariant cache hit.
[2025-06-01 08:27:28] [INFO ] State equation strengthened by 33 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/120 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 292 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/120 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 292 unsolved
At refinement iteration 2 (OVERLAPS) 194/314 variables, 120/123 constraints. Problems are: Problem set: 0 solved, 292 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/314 variables, 33/156 constraints. Problems are: Problem set: 0 solved, 292 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/314 variables, 0/156 constraints. Problems are: Problem set: 0 solved, 292 unsolved
At refinement iteration 5 (OVERLAPS) 1/315 variables, 1/157 constraints. Problems are: Problem set: 0 solved, 292 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/315 variables, 0/157 constraints. Problems are: Problem set: 0 solved, 292 unsolved
At refinement iteration 7 (OVERLAPS) 0/315 variables, 0/157 constraints. Problems are: Problem set: 0 solved, 292 unsolved
No progress, stopping.
After SMT solving in domain Real declared 315/315 variables, and 157 constraints, problems are : Problem set: 0 solved, 292 unsolved in 12708 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 121/121 constraints, ReadFeed: 33/33 constraints, PredecessorRefiner: 292/292 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 292 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/120 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 292 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/120 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 292 unsolved
At refinement iteration 2 (OVERLAPS) 194/314 variables, 120/123 constraints. Problems are: Problem set: 0 solved, 292 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/314 variables, 33/156 constraints. Problems are: Problem set: 0 solved, 292 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/314 variables, 32/188 constraints. Problems are: Problem set: 0 solved, 292 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/314 variables, 0/188 constraints. Problems are: Problem set: 0 solved, 292 unsolved
At refinement iteration 6 (OVERLAPS) 1/315 variables, 1/189 constraints. Problems are: Problem set: 0 solved, 292 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/315 variables, 260/449 constraints. Problems are: Problem set: 0 solved, 292 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/315 variables, 0/449 constraints. Problems are: Problem set: 0 solved, 292 unsolved
At refinement iteration 9 (OVERLAPS) 0/315 variables, 0/449 constraints. Problems are: Problem set: 0 solved, 292 unsolved
No progress, stopping.
After SMT solving in domain Int declared 315/315 variables, and 449 constraints, problems are : Problem set: 0 solved, 292 unsolved in 17839 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 121/121 constraints, ReadFeed: 33/33 constraints, PredecessorRefiner: 292/292 constraints, Known Traps: 0/0 constraints]
After SMT, in 30835ms problems are : Problem set: 0 solved, 292 unsolved
Search for dead transitions found 0 dead transitions in 30839ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 31254 ms. Remains : 121/121 places, 294/294 transitions.
[2025-06-01 08:27:59] [INFO ] Flow matrix only has 194 transitions (discarded 100 similar events)
Found an invariant !
This invariant on transitions {25=1, 34=1, 92=1, 147=1, 189=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {31=1, 98=1, 153=1, 189=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 146 ms. (steps per millisecond=68 ) properties (out of 8) seen :[6, 2147483647, 17, 4, 6, 4, 2, 8]
Current structural bounds on expressions (after cover walk) : Max Seen:[554, +inf, 26541, 435, 377, 67, 59, 841] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 08:27:59] [INFO ] Flow matrix only has 194 transitions (discarded 100 similar events)
[2025-06-01 08:27:59] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[554, +inf, 26541, 435, 377, 67, 59, 841] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 1876 ms. (532 steps per ms)
FORMULA FunctionPointer-PT-b032-UpperBounds-02 +inf TECHNIQUES TOPOLOGICAL RANDOM_WALK
BEST_FIRST walk for 7000006 steps (14 resets) in 8541 ms. (819 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[554, 26541, 435, 377, 67, 59, 841] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 08:28:09] [INFO ] Flow matrix only has 194 transitions (discarded 100 similar events)
[2025-06-01 08:28:09] [INFO ] Invariant cache hit.
[2025-06-01 08:28:10] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 08:28:10] [INFO ] [Real]Absence check using state equation in 63 ms returned sat
[2025-06-01 08:28:10] [INFO ] State equation strengthened by 33 read => feed constraints.
[2025-06-01 08:28:10] [INFO ] [Real]Added 33 Read/Feed constraints in 8 ms returned sat
[2025-06-01 08:28:10] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:28:10] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:28:10] [INFO ] [Nat]Absence check using state equation in 65 ms returned sat
[2025-06-01 08:28:10] [INFO ] [Nat]Added 33 Read/Feed constraints in 9 ms returned sat
[2025-06-01 08:28:10] [INFO ] Computed and/alt/rep : 46/184/45 causal constraints (skipped 147 transitions) in 15 ms.
[2025-06-01 08:28:10] [INFO ] Added : 5 causal constraints over 3 iterations in 68 ms. Result :sat
Minimization took 46 ms.
[2025-06-01 08:28:10] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 08:28:10] [INFO ] [Real]Absence check using state equation in 104 ms returned sat
[2025-06-01 08:28:10] [INFO ] [Real]Added 33 Read/Feed constraints in 10 ms returned sat
[2025-06-01 08:28:10] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:28:10] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:28:10] [INFO ] [Nat]Absence check using state equation in 84 ms returned sat
[2025-06-01 08:28:10] [INFO ] [Nat]Added 33 Read/Feed constraints in 9 ms returned sat
[2025-06-01 08:28:10] [INFO ] Computed and/alt/rep : 46/184/45 causal constraints (skipped 147 transitions) in 21 ms.
[2025-06-01 08:28:10] [INFO ] Deduced a trap composed of 29 places in 93 ms of which 2 ms to minimize.
[2025-06-01 08:28:10] [INFO ] Deduced a trap composed of 27 places in 75 ms of which 2 ms to minimize.
[2025-06-01 08:28:11] [INFO ] Deduced a trap composed of 23 places in 77 ms of which 2 ms to minimize.
[2025-06-01 08:28:11] [INFO ] Trap strengthening (SAT) tested/added 4/3 trap constraints in 301 ms
[2025-06-01 08:28:11] [INFO ] Added : 15 causal constraints over 4 iterations in 417 ms. Result :sat
Minimization took 77 ms.
[2025-06-01 08:28:11] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:28:11] [INFO ] [Real]Absence check using state equation in 66 ms returned sat
[2025-06-01 08:28:11] [INFO ] [Real]Added 33 Read/Feed constraints in 9 ms returned sat
[2025-06-01 08:28:11] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:28:11] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:28:11] [INFO ] [Nat]Absence check using state equation in 85 ms returned sat
[2025-06-01 08:28:11] [INFO ] [Nat]Added 33 Read/Feed constraints in 15 ms returned sat
[2025-06-01 08:28:11] [INFO ] Computed and/alt/rep : 46/184/45 causal constraints (skipped 147 transitions) in 17 ms.
[2025-06-01 08:28:11] [INFO ] Deduced a trap composed of 25 places in 102 ms of which 2 ms to minimize.
[2025-06-01 08:28:11] [INFO ] Deduced a trap composed of 23 places in 123 ms of which 2 ms to minimize.
[2025-06-01 08:28:11] [INFO ] Deduced a trap composed of 20 places in 96 ms of which 2 ms to minimize.
[2025-06-01 08:28:11] [INFO ] Trap strengthening (SAT) tested/added 4/3 trap constraints in 369 ms
[2025-06-01 08:28:11] [INFO ] Added : 6 causal constraints over 3 iterations in 469 ms. Result :sat
Minimization took 46 ms.
[2025-06-01 08:28:12] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:28:12] [INFO ] [Real]Absence check using state equation in 79 ms returned sat
[2025-06-01 08:28:12] [INFO ] [Real]Added 33 Read/Feed constraints in 10 ms returned sat
[2025-06-01 08:28:12] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:28:12] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:28:12] [INFO ] [Nat]Absence check using state equation in 83 ms returned sat
[2025-06-01 08:28:12] [INFO ] [Nat]Added 33 Read/Feed constraints in 9 ms returned sat
[2025-06-01 08:28:12] [INFO ] Deduced a trap composed of 27 places in 147 ms of which 2 ms to minimize.
[2025-06-01 08:28:12] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 166 ms
[2025-06-01 08:28:12] [INFO ] Computed and/alt/rep : 46/184/45 causal constraints (skipped 147 transitions) in 18 ms.
[2025-06-01 08:28:12] [INFO ] Deduced a trap composed of 44 places in 146 ms of which 3 ms to minimize.
[2025-06-01 08:28:12] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 170 ms
[2025-06-01 08:28:12] [INFO ] Added : 5 causal constraints over 3 iterations in 263 ms. Result :sat
Minimization took 45 ms.
[2025-06-01 08:28:12] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 08:28:12] [INFO ] [Real]Absence check using state equation in 79 ms returned sat
[2025-06-01 08:28:12] [INFO ] [Real]Added 33 Read/Feed constraints in 9 ms returned sat
[2025-06-01 08:28:12] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:28:12] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 08:28:13] [INFO ] [Nat]Absence check using state equation in 80 ms returned sat
[2025-06-01 08:28:13] [INFO ] [Nat]Added 33 Read/Feed constraints in 9 ms returned sat
[2025-06-01 08:28:13] [INFO ] Computed and/alt/rep : 46/184/45 causal constraints (skipped 147 transitions) in 20 ms.
[2025-06-01 08:28:13] [INFO ] Deduced a trap composed of 28 places in 142 ms of which 2 ms to minimize.
[2025-06-01 08:28:13] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 168 ms
[2025-06-01 08:28:13] [INFO ] Added : 5 causal constraints over 2 iterations in 252 ms. Result :sat
Minimization took 72 ms.
[2025-06-01 08:28:13] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:28:13] [INFO ] [Real]Absence check using state equation in 79 ms returned sat
[2025-06-01 08:28:13] [INFO ] [Real]Added 33 Read/Feed constraints in 9 ms returned sat
[2025-06-01 08:28:13] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:28:13] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 08:28:13] [INFO ] [Nat]Absence check using state equation in 61 ms returned sat
[2025-06-01 08:28:13] [INFO ] [Nat]Added 33 Read/Feed constraints in 8 ms returned sat
[2025-06-01 08:28:13] [INFO ] Computed and/alt/rep : 46/184/45 causal constraints (skipped 147 transitions) in 15 ms.
[2025-06-01 08:28:13] [INFO ] Deduced a trap composed of 30 places in 123 ms of which 3 ms to minimize.
[2025-06-01 08:28:13] [INFO ] Deduced a trap composed of 22 places in 123 ms of which 3 ms to minimize.
[2025-06-01 08:28:14] [INFO ] Deduced a trap composed of 33 places in 124 ms of which 2 ms to minimize.
[2025-06-01 08:28:14] [INFO ] Trap strengthening (SAT) tested/added 4/3 trap constraints in 418 ms
[2025-06-01 08:28:14] [INFO ] Added : 13 causal constraints over 5 iterations in 522 ms. Result :sat
Minimization took 80 ms.
[2025-06-01 08:28:14] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 08:28:14] [INFO ] [Real]Absence check using state equation in 89 ms returned sat
[2025-06-01 08:28:14] [INFO ] [Real]Added 33 Read/Feed constraints in 12 ms returned sat
[2025-06-01 08:28:14] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:28:14] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 08:28:14] [INFO ] [Nat]Absence check using state equation in 66 ms returned sat
[2025-06-01 08:28:14] [INFO ] [Nat]Added 33 Read/Feed constraints in 7 ms returned sat
[2025-06-01 08:28:14] [INFO ] Deduced a trap composed of 42 places in 100 ms of which 2 ms to minimize.
[2025-06-01 08:28:14] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 114 ms
[2025-06-01 08:28:14] [INFO ] Computed and/alt/rep : 46/184/45 causal constraints (skipped 147 transitions) in 14 ms.
[2025-06-01 08:28:14] [INFO ] Added : 17 causal constraints over 5 iterations in 92 ms. Result :sat
Minimization took 49 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[554, 26541, 435, 377, 67, 59, 841] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[554, 26541, 435, 377, 67, 59, 1528] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf]
Support contains 7 out of 121 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 121/121 places, 294/294 transitions.
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 1 place count 120 transition count 292
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 120 transition count 292
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 3 place count 119 transition count 290
Iterating global reduction 0 with 1 rules applied. Total rules applied 4 place count 119 transition count 290
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 5 place count 118 transition count 286
Iterating global reduction 0 with 1 rules applied. Total rules applied 6 place count 118 transition count 286
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 7 place count 117 transition count 284
Iterating global reduction 0 with 1 rules applied. Total rules applied 8 place count 117 transition count 284
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 9 place count 116 transition count 282
Iterating global reduction 0 with 1 rules applied. Total rules applied 10 place count 116 transition count 282
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 11 place count 115 transition count 280
Iterating global reduction 0 with 1 rules applied. Total rules applied 12 place count 115 transition count 280
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 13 place count 114 transition count 278
Iterating global reduction 0 with 1 rules applied. Total rules applied 14 place count 114 transition count 278
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 15 place count 113 transition count 276
Iterating global reduction 0 with 1 rules applied. Total rules applied 16 place count 113 transition count 276
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 17 place count 112 transition count 274
Iterating global reduction 0 with 1 rules applied. Total rules applied 18 place count 112 transition count 274
Applied a total of 18 rules in 39 ms. Remains 112 /121 variables (removed 9) and now considering 274/294 (removed 20) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 39 ms. Remains : 112/121 places, 274/294 transitions.
[2025-06-01 08:28:46] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
Found an invariant !
This invariant on transitions {25=1, 84=1, 138=1, 177=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {25=1, 84=1, 122=1, 172=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 44 ms. (steps per millisecond=227 ) properties (out of 7) seen :[9, 17, 10, 6, 2, 2, 10]
Current structural bounds on expressions (after cover walk) : Max Seen:[554, 26541, 435, 377, 67, 59, 1528] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 08:28:46] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
// Phase 1: matrix 180 rows 112 cols
[2025-06-01 08:28:46] [INFO ] Computed 3 invariants in 3 ms
Current structural bounds on expressions (after invariants) : Max Seen:[554, 26541, 435, 377, 67, 59, 1528] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 1544 ms. (647 steps per ms)
BEST_FIRST walk for 7000006 steps (14 resets) in 7835 ms. (893 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[674, 26541, 435, 377, 72, 59, 1528] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 08:28:56] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 08:28:56] [INFO ] Invariant cache hit.
[2025-06-01 08:28:56] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 08:28:56] [INFO ] [Real]Absence check using state equation in 78 ms returned sat
[2025-06-01 08:28:56] [INFO ] State equation strengthened by 30 read => feed constraints.
[2025-06-01 08:28:56] [INFO ] [Real]Added 30 Read/Feed constraints in 8 ms returned sat
[2025-06-01 08:28:56] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:28:56] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:28:56] [INFO ] [Nat]Absence check using state equation in 60 ms returned sat
[2025-06-01 08:28:56] [INFO ] [Nat]Added 30 Read/Feed constraints in 6 ms returned sat
[2025-06-01 08:28:56] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 14 ms.
[2025-06-01 08:28:56] [INFO ] Added : 7 causal constraints over 4 iterations in 72 ms. Result :sat
Minimization took 44 ms.
[2025-06-01 08:28:56] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:28:56] [INFO ] [Real]Absence check using state equation in 79 ms returned sat
[2025-06-01 08:28:56] [INFO ] [Real]Added 30 Read/Feed constraints in 13 ms returned sat
[2025-06-01 08:28:56] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:28:56] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:28:56] [INFO ] [Nat]Absence check using state equation in 74 ms returned sat
[2025-06-01 08:28:56] [INFO ] [Nat]Added 30 Read/Feed constraints in 9 ms returned sat
[2025-06-01 08:28:57] [INFO ] Deduced a trap composed of 33 places in 96 ms of which 2 ms to minimize.
[2025-06-01 08:28:57] [INFO ] Deduced a trap composed of 31 places in 136 ms of which 3 ms to minimize.
[2025-06-01 08:28:57] [INFO ] Deduced a trap composed of 22 places in 135 ms of which 2 ms to minimize.
[2025-06-01 08:28:57] [INFO ] Trap strengthening (SAT) tested/added 4/3 trap constraints in 403 ms
[2025-06-01 08:28:57] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 18 ms.
[2025-06-01 08:28:57] [INFO ] Added : 39 causal constraints over 8 iterations in 169 ms. Result :sat
Minimization took 55 ms.
[2025-06-01 08:28:57] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 08:28:57] [INFO ] [Real]Absence check using state equation in 77 ms returned sat
[2025-06-01 08:28:57] [INFO ] [Real]Added 30 Read/Feed constraints in 8 ms returned sat
[2025-06-01 08:28:57] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:28:57] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 08:28:57] [INFO ] [Nat]Absence check using state equation in 93 ms returned sat
[2025-06-01 08:28:57] [INFO ] [Nat]Added 30 Read/Feed constraints in 13 ms returned sat
[2025-06-01 08:28:58] [INFO ] Deduced a trap composed of 33 places in 89 ms of which 1 ms to minimize.
[2025-06-01 08:28:58] [INFO ] Deduced a trap composed of 31 places in 87 ms of which 1 ms to minimize.
[2025-06-01 08:28:58] [INFO ] Deduced a trap composed of 22 places in 93 ms of which 2 ms to minimize.
[2025-06-01 08:28:58] [INFO ] Deduced a trap composed of 24 places in 78 ms of which 2 ms to minimize.
[2025-06-01 08:28:58] [INFO ] Trap strengthening (SAT) tested/added 5/4 trap constraints in 396 ms
[2025-06-01 08:28:58] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 21 ms.
[2025-06-01 08:28:58] [INFO ] Added : 19 causal constraints over 5 iterations in 120 ms. Result :sat
Minimization took 49 ms.
[2025-06-01 08:28:58] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 08:28:58] [INFO ] [Real]Absence check using state equation in 95 ms returned sat
[2025-06-01 08:28:58] [INFO ] [Real]Added 30 Read/Feed constraints in 9 ms returned sat
[2025-06-01 08:28:58] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:28:58] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 08:28:58] [INFO ] [Nat]Absence check using state equation in 75 ms returned sat
[2025-06-01 08:28:58] [INFO ] [Nat]Added 30 Read/Feed constraints in 6 ms returned sat
[2025-06-01 08:28:58] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 21 ms.
[2025-06-01 08:28:59] [INFO ] Deduced a trap composed of 25 places in 122 ms of which 3 ms to minimize.
[2025-06-01 08:28:59] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 142 ms
[2025-06-01 08:28:59] [INFO ] Added : 9 causal constraints over 5 iterations in 268 ms. Result :sat
Minimization took 42 ms.
[2025-06-01 08:28:59] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:28:59] [INFO ] [Real]Absence check using state equation in 76 ms returned sat
[2025-06-01 08:28:59] [INFO ] [Real]Added 30 Read/Feed constraints in 10 ms returned sat
[2025-06-01 08:28:59] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:28:59] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 08:28:59] [INFO ] [Nat]Absence check using state equation in 78 ms returned sat
[2025-06-01 08:28:59] [INFO ] [Nat]Added 30 Read/Feed constraints in 6 ms returned sat
[2025-06-01 08:28:59] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 16 ms.
[2025-06-01 08:28:59] [INFO ] Added : 36 causal constraints over 10 iterations in 223 ms. Result :sat
Minimization took 91 ms.
[2025-06-01 08:28:59] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 08:28:59] [INFO ] [Real]Absence check using state equation in 80 ms returned sat
[2025-06-01 08:28:59] [INFO ] [Real]Added 30 Read/Feed constraints in 15 ms returned sat
[2025-06-01 08:28:59] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:28:59] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:28:59] [INFO ] [Nat]Absence check using state equation in 59 ms returned sat
[2025-06-01 08:28:59] [INFO ] [Nat]Added 30 Read/Feed constraints in 9 ms returned sat
[2025-06-01 08:29:00] [INFO ] Deduced a trap composed of 30 places in 94 ms of which 2 ms to minimize.
[2025-06-01 08:29:00] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 108 ms
[2025-06-01 08:29:00] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 13 ms.
[2025-06-01 08:29:00] [INFO ] Added : 5 causal constraints over 2 iterations in 54 ms. Result :sat
Minimization took 43 ms.
[2025-06-01 08:29:00] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:29:00] [INFO ] [Real]Absence check using state equation in 79 ms returned sat
[2025-06-01 08:29:00] [INFO ] [Real]Added 30 Read/Feed constraints in 9 ms returned sat
[2025-06-01 08:29:00] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:29:00] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 08:29:00] [INFO ] [Nat]Absence check using state equation in 58 ms returned sat
[2025-06-01 08:29:00] [INFO ] [Nat]Added 30 Read/Feed constraints in 7 ms returned sat
[2025-06-01 08:29:00] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 16 ms.
[2025-06-01 08:29:00] [INFO ] Added : 15 causal constraints over 5 iterations in 91 ms. Result :sat
Minimization took 46 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[674, 26541, 435, 377, 72, 59, 1528] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[39935, 37203, 435, 377, 72, 59, 1528] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf]
Support contains 7 out of 112 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 112/112 places, 274/274 transitions.
Applied a total of 0 rules in 6 ms. Remains 112 /112 variables (removed 0) and now considering 274/274 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 6 ms. Remains : 112/112 places, 274/274 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 112/112 places, 274/274 transitions.
Applied a total of 0 rules in 6 ms. Remains 112 /112 variables (removed 0) and now considering 274/274 (removed 0) transitions.
[2025-06-01 08:29:38] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 08:29:38] [INFO ] Invariant cache hit.
[2025-06-01 08:29:38] [INFO ] Implicit Places using invariants in 135 ms returned []
[2025-06-01 08:29:38] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 08:29:38] [INFO ] Invariant cache hit.
[2025-06-01 08:29:38] [INFO ] State equation strengthened by 30 read => feed constraints.
[2025-06-01 08:29:38] [INFO ] Implicit Places using invariants and state equation in 247 ms returned []
Implicit Place search using SMT with State Equation took 384 ms to find 0 implicit places.
[2025-06-01 08:29:38] [INFO ] Redundant transitions in 1 ms returned []
Running 272 sub problems to find dead transitions.
[2025-06-01 08:29:38] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 08:29:38] [INFO ] Invariant cache hit.
[2025-06-01 08:29:38] [INFO ] State equation strengthened by 30 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/111 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/111 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 2 (OVERLAPS) 180/291 variables, 111/114 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/291 variables, 30/144 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/291 variables, 0/144 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 5 (OVERLAPS) 1/292 variables, 1/145 constraints. Problems are: Problem set: 0 solved, 272 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/292 variables, 0/145 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 7 (OVERLAPS) 0/292 variables, 0/145 constraints. Problems are: Problem set: 0 solved, 272 unsolved
No progress, stopping.
After SMT solving in domain Real declared 292/292 variables, and 145 constraints, problems are : Problem set: 0 solved, 272 unsolved in 10959 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 112/112 constraints, ReadFeed: 30/30 constraints, PredecessorRefiner: 272/272 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 272 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/111 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/111 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 2 (OVERLAPS) 180/291 variables, 111/114 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/291 variables, 30/144 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/291 variables, 32/176 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/291 variables, 0/176 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 6 (OVERLAPS) 1/292 variables, 1/177 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/292 variables, 240/417 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/292 variables, 0/417 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 9 (OVERLAPS) 0/292 variables, 0/417 constraints. Problems are: Problem set: 0 solved, 272 unsolved
No progress, stopping.
After SMT solving in domain Int declared 292/292 variables, and 417 constraints, problems are : Problem set: 0 solved, 272 unsolved in 18500 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 112/112 constraints, ReadFeed: 30/30 constraints, PredecessorRefiner: 272/272 constraints, Known Traps: 0/0 constraints]
After SMT, in 29810ms problems are : Problem set: 0 solved, 272 unsolved
Search for dead transitions found 0 dead transitions in 29813ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 30211 ms. Remains : 112/112 places, 274/274 transitions.
[2025-06-01 08:30:08] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
Found an invariant !
This invariant on transitions {25=1, 84=1, 138=1, 177=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {25=1, 84=1, 122=1, 172=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 42 ms. (steps per millisecond=238 ) properties (out of 7) seen :[12, 12, 8, 9, 3, 2, 7]
Current structural bounds on expressions (after cover walk) : Max Seen:[39935, 37203, 435, 377, 72, 59, 1528] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 08:30:08] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 08:30:08] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[39935, 37203, 435, 377, 72, 59, 1528] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 1709 ms. (584 steps per ms)
BEST_FIRST walk for 7000007 steps (14 resets) in 7936 ms. (881 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[39935, 37203, 435, 377, 72, 69, 1528] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 08:30:18] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 08:30:18] [INFO ] Invariant cache hit.
[2025-06-01 08:30:18] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 08:30:18] [INFO ] [Real]Absence check using state equation in 56 ms returned sat
[2025-06-01 08:30:18] [INFO ] State equation strengthened by 30 read => feed constraints.
[2025-06-01 08:30:18] [INFO ] [Real]Added 30 Read/Feed constraints in 7 ms returned sat
[2025-06-01 08:30:18] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:30:18] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:30:18] [INFO ] [Nat]Absence check using state equation in 88 ms returned sat
[2025-06-01 08:30:18] [INFO ] [Nat]Added 30 Read/Feed constraints in 9 ms returned sat
[2025-06-01 08:30:18] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 24 ms.
[2025-06-01 08:30:18] [INFO ] Added : 7 causal constraints over 4 iterations in 120 ms. Result :sat
Minimization took 70 ms.
[2025-06-01 08:30:18] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 08:30:18] [INFO ] [Real]Absence check using state equation in 76 ms returned sat
[2025-06-01 08:30:18] [INFO ] [Real]Added 30 Read/Feed constraints in 9 ms returned sat
[2025-06-01 08:30:18] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:30:18] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:30:19] [INFO ] [Nat]Absence check using state equation in 76 ms returned sat
[2025-06-01 08:30:19] [INFO ] [Nat]Added 30 Read/Feed constraints in 10 ms returned sat
[2025-06-01 08:30:19] [INFO ] Deduced a trap composed of 33 places in 89 ms of which 2 ms to minimize.
[2025-06-01 08:30:19] [INFO ] Deduced a trap composed of 31 places in 132 ms of which 2 ms to minimize.
[2025-06-01 08:30:19] [INFO ] Deduced a trap composed of 22 places in 88 ms of which 2 ms to minimize.
[2025-06-01 08:30:19] [INFO ] Trap strengthening (SAT) tested/added 4/3 trap constraints in 344 ms
[2025-06-01 08:30:19] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 17 ms.
[2025-06-01 08:30:19] [INFO ] Added : 39 causal constraints over 8 iterations in 164 ms. Result :sat
Minimization took 54 ms.
[2025-06-01 08:30:19] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:30:19] [INFO ] [Real]Absence check using state equation in 76 ms returned sat
[2025-06-01 08:30:19] [INFO ] [Real]Added 30 Read/Feed constraints in 9 ms returned sat
[2025-06-01 08:30:19] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:30:19] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:30:19] [INFO ] [Nat]Absence check using state equation in 73 ms returned sat
[2025-06-01 08:30:19] [INFO ] [Nat]Added 30 Read/Feed constraints in 8 ms returned sat
[2025-06-01 08:30:20] [INFO ] Deduced a trap composed of 33 places in 88 ms of which 1 ms to minimize.
[2025-06-01 08:30:20] [INFO ] Deduced a trap composed of 31 places in 89 ms of which 2 ms to minimize.
[2025-06-01 08:30:20] [INFO ] Deduced a trap composed of 22 places in 87 ms of which 1 ms to minimize.
[2025-06-01 08:30:20] [INFO ] Deduced a trap composed of 24 places in 133 ms of which 2 ms to minimize.
[2025-06-01 08:30:20] [INFO ] Trap strengthening (SAT) tested/added 5/4 trap constraints in 448 ms
[2025-06-01 08:30:20] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 14 ms.
[2025-06-01 08:30:20] [INFO ] Added : 19 causal constraints over 5 iterations in 94 ms. Result :sat
Minimization took 59 ms.
[2025-06-01 08:30:20] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 08:30:20] [INFO ] [Real]Absence check using state equation in 56 ms returned sat
[2025-06-01 08:30:20] [INFO ] [Real]Added 30 Read/Feed constraints in 5 ms returned sat
[2025-06-01 08:30:20] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:30:20] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:30:20] [INFO ] [Nat]Absence check using state equation in 54 ms returned sat
[2025-06-01 08:30:20] [INFO ] [Nat]Added 30 Read/Feed constraints in 6 ms returned sat
[2025-06-01 08:30:20] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 13 ms.
[2025-06-01 08:30:20] [INFO ] Deduced a trap composed of 25 places in 120 ms of which 3 ms to minimize.
[2025-06-01 08:30:20] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 138 ms
[2025-06-01 08:30:20] [INFO ] Added : 9 causal constraints over 5 iterations in 227 ms. Result :sat
Minimization took 44 ms.
[2025-06-01 08:30:21] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 08:30:21] [INFO ] [Real]Absence check using state equation in 80 ms returned sat
[2025-06-01 08:30:21] [INFO ] [Real]Added 30 Read/Feed constraints in 12 ms returned sat
[2025-06-01 08:30:21] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:30:21] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 08:30:21] [INFO ] [Nat]Absence check using state equation in 60 ms returned sat
[2025-06-01 08:30:21] [INFO ] [Nat]Added 30 Read/Feed constraints in 7 ms returned sat
[2025-06-01 08:30:21] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 13 ms.
[2025-06-01 08:30:21] [INFO ] Added : 36 causal constraints over 10 iterations in 157 ms. Result :sat
Minimization took 55 ms.
[2025-06-01 08:30:21] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:30:21] [INFO ] [Real]Absence check using state equation in 78 ms returned sat
[2025-06-01 08:30:21] [INFO ] [Real]Added 30 Read/Feed constraints in 15 ms returned sat
[2025-06-01 08:30:21] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:30:21] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 08:30:21] [INFO ] [Nat]Absence check using state equation in 60 ms returned sat
[2025-06-01 08:30:21] [INFO ] [Nat]Added 30 Read/Feed constraints in 14 ms returned sat
[2025-06-01 08:30:21] [INFO ] Deduced a trap composed of 30 places in 94 ms of which 2 ms to minimize.
[2025-06-01 08:30:21] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 108 ms
[2025-06-01 08:30:21] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 14 ms.
[2025-06-01 08:30:21] [INFO ] Added : 6 causal constraints over 2 iterations in 55 ms. Result :sat
Minimization took 43 ms.
[2025-06-01 08:30:22] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:30:22] [INFO ] [Real]Absence check using state equation in 80 ms returned sat
[2025-06-01 08:30:22] [INFO ] [Real]Added 30 Read/Feed constraints in 9 ms returned sat
[2025-06-01 08:30:22] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:30:22] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 08:30:22] [INFO ] [Nat]Absence check using state equation in 60 ms returned sat
[2025-06-01 08:30:22] [INFO ] [Nat]Added 30 Read/Feed constraints in 6 ms returned sat
[2025-06-01 08:30:22] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 13 ms.
[2025-06-01 08:30:22] [INFO ] Added : 15 causal constraints over 5 iterations in 87 ms. Result :sat
Minimization took 44 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[39935, 37203, 435, 377, 72, 69, 1528] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[42149, 37203, 435, 377, 72, 69, 1528] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf]
Support contains 7 out of 112 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 112/112 places, 274/274 transitions.
Applied a total of 0 rules in 7 ms. Remains 112 /112 variables (removed 0) and now considering 274/274 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 7 ms. Remains : 112/112 places, 274/274 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 112/112 places, 274/274 transitions.
Applied a total of 0 rules in 5 ms. Remains 112 /112 variables (removed 0) and now considering 274/274 (removed 0) transitions.
[2025-06-01 08:31:28] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 08:31:28] [INFO ] Invariant cache hit.
[2025-06-01 08:31:29] [INFO ] Implicit Places using invariants in 190 ms returned []
[2025-06-01 08:31:29] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 08:31:29] [INFO ] Invariant cache hit.
[2025-06-01 08:31:29] [INFO ] State equation strengthened by 30 read => feed constraints.
[2025-06-01 08:31:29] [INFO ] Implicit Places using invariants and state equation in 311 ms returned []
Implicit Place search using SMT with State Equation took 514 ms to find 0 implicit places.
[2025-06-01 08:31:29] [INFO ] Redundant transitions in 2 ms returned []
Running 272 sub problems to find dead transitions.
[2025-06-01 08:31:29] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 08:31:29] [INFO ] Invariant cache hit.
[2025-06-01 08:31:29] [INFO ] State equation strengthened by 30 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/111 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/111 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 2 (OVERLAPS) 180/291 variables, 111/114 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/291 variables, 30/144 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/291 variables, 0/144 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 5 (OVERLAPS) 1/292 variables, 1/145 constraints. Problems are: Problem set: 0 solved, 272 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/292 variables, 0/145 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 7 (OVERLAPS) 0/292 variables, 0/145 constraints. Problems are: Problem set: 0 solved, 272 unsolved
No progress, stopping.
After SMT solving in domain Real declared 292/292 variables, and 145 constraints, problems are : Problem set: 0 solved, 272 unsolved in 10701 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 112/112 constraints, ReadFeed: 30/30 constraints, PredecessorRefiner: 272/272 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 272 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/111 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/111 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 2 (OVERLAPS) 180/291 variables, 111/114 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/291 variables, 30/144 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/291 variables, 32/176 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/291 variables, 0/176 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 6 (OVERLAPS) 1/292 variables, 1/177 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/292 variables, 240/417 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/292 variables, 0/417 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 9 (OVERLAPS) 0/292 variables, 0/417 constraints. Problems are: Problem set: 0 solved, 272 unsolved
No progress, stopping.
After SMT solving in domain Int declared 292/292 variables, and 417 constraints, problems are : Problem set: 0 solved, 272 unsolved in 17060 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 112/112 constraints, ReadFeed: 30/30 constraints, PredecessorRefiner: 272/272 constraints, Known Traps: 0/0 constraints]
After SMT, in 28165ms problems are : Problem set: 0 solved, 272 unsolved
Search for dead transitions found 0 dead transitions in 28172ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 28700 ms. Remains : 112/112 places, 274/274 transitions.
[2025-06-01 08:31:57] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
Found an invariant !
This invariant on transitions {25=1, 84=1, 138=1, 177=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {25=1, 84=1, 122=1, 172=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 7) seen :[9, 17, 8, 11, 5, 3, 8]
Current structural bounds on expressions (after cover walk) : Max Seen:[42149, 37203, 435, 377, 72, 69, 1528] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 08:31:57] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 08:31:57] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[42149, 37203, 435, 377, 72, 69, 1528] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 1475 ms. (677 steps per ms)
BEST_FIRST walk for 7000007 steps (14 resets) in 7843 ms. (892 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[42149, 37203, 435, 377, 72, 69, 1528] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 08:32:07] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 08:32:07] [INFO ] Invariant cache hit.
[2025-06-01 08:32:07] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 08:32:07] [INFO ] [Real]Absence check using state equation in 92 ms returned sat
[2025-06-01 08:32:07] [INFO ] State equation strengthened by 30 read => feed constraints.
[2025-06-01 08:32:07] [INFO ] [Real]Added 30 Read/Feed constraints in 10 ms returned sat
[2025-06-01 08:32:07] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:32:07] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 08:32:07] [INFO ] [Nat]Absence check using state equation in 71 ms returned sat
[2025-06-01 08:32:07] [INFO ] [Nat]Added 30 Read/Feed constraints in 8 ms returned sat
[2025-06-01 08:32:07] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 23 ms.
[2025-06-01 08:32:07] [INFO ] Added : 7 causal constraints over 4 iterations in 95 ms. Result :sat
Minimization took 42 ms.
[2025-06-01 08:32:07] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:32:07] [INFO ] [Real]Absence check using state equation in 77 ms returned sat
[2025-06-01 08:32:07] [INFO ] [Real]Added 30 Read/Feed constraints in 9 ms returned sat
[2025-06-01 08:32:07] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:32:07] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:32:07] [INFO ] [Nat]Absence check using state equation in 74 ms returned sat
[2025-06-01 08:32:07] [INFO ] [Nat]Added 30 Read/Feed constraints in 9 ms returned sat
[2025-06-01 08:32:07] [INFO ] Deduced a trap composed of 33 places in 140 ms of which 3 ms to minimize.
[2025-06-01 08:32:08] [INFO ] Deduced a trap composed of 31 places in 73 ms of which 2 ms to minimize.
[2025-06-01 08:32:08] [INFO ] Deduced a trap composed of 22 places in 111 ms of which 2 ms to minimize.
[2025-06-01 08:32:08] [INFO ] Trap strengthening (SAT) tested/added 4/3 trap constraints in 363 ms
[2025-06-01 08:32:08] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 16 ms.
[2025-06-01 08:32:08] [INFO ] Added : 39 causal constraints over 8 iterations in 189 ms. Result :sat
Minimization took 90 ms.
[2025-06-01 08:32:08] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:32:08] [INFO ] [Real]Absence check using state equation in 62 ms returned sat
[2025-06-01 08:32:08] [INFO ] [Real]Added 30 Read/Feed constraints in 7 ms returned sat
[2025-06-01 08:32:08] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:32:08] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:32:08] [INFO ] [Nat]Absence check using state equation in 81 ms returned sat
[2025-06-01 08:32:08] [INFO ] [Nat]Added 30 Read/Feed constraints in 7 ms returned sat
[2025-06-01 08:32:08] [INFO ] Deduced a trap composed of 33 places in 95 ms of which 2 ms to minimize.
[2025-06-01 08:32:08] [INFO ] Deduced a trap composed of 31 places in 136 ms of which 3 ms to minimize.
[2025-06-01 08:32:09] [INFO ] Deduced a trap composed of 22 places in 90 ms of which 1 ms to minimize.
[2025-06-01 08:32:09] [INFO ] Deduced a trap composed of 24 places in 87 ms of which 2 ms to minimize.
[2025-06-01 08:32:09] [INFO ] Trap strengthening (SAT) tested/added 5/4 trap constraints in 452 ms
[2025-06-01 08:32:09] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 17 ms.
[2025-06-01 08:32:09] [INFO ] Added : 19 causal constraints over 5 iterations in 114 ms. Result :sat
Minimization took 47 ms.
[2025-06-01 08:32:09] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 08:32:09] [INFO ] [Real]Absence check using state equation in 90 ms returned sat
[2025-06-01 08:32:09] [INFO ] [Real]Added 30 Read/Feed constraints in 9 ms returned sat
[2025-06-01 08:32:09] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:32:09] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 08:32:09] [INFO ] [Nat]Absence check using state equation in 89 ms returned sat
[2025-06-01 08:32:09] [INFO ] [Nat]Added 30 Read/Feed constraints in 9 ms returned sat
[2025-06-01 08:32:09] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 22 ms.
[2025-06-01 08:32:09] [INFO ] Deduced a trap composed of 25 places in 91 ms of which 2 ms to minimize.
[2025-06-01 08:32:09] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 123 ms
[2025-06-01 08:32:09] [INFO ] Added : 9 causal constraints over 5 iterations in 271 ms. Result :sat
Minimization took 71 ms.
[2025-06-01 08:32:10] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 08:32:10] [INFO ] [Real]Absence check using state equation in 73 ms returned sat
[2025-06-01 08:32:10] [INFO ] [Real]Added 30 Read/Feed constraints in 9 ms returned sat
[2025-06-01 08:32:10] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:32:10] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:32:10] [INFO ] [Nat]Absence check using state equation in 74 ms returned sat
[2025-06-01 08:32:10] [INFO ] [Nat]Added 30 Read/Feed constraints in 9 ms returned sat
[2025-06-01 08:32:10] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 18 ms.
[2025-06-01 08:32:10] [INFO ] Added : 36 causal constraints over 10 iterations in 191 ms. Result :sat
Minimization took 54 ms.
[2025-06-01 08:32:10] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:32:10] [INFO ] [Real]Absence check using state equation in 74 ms returned sat
[2025-06-01 08:32:10] [INFO ] [Real]Added 30 Read/Feed constraints in 12 ms returned sat
[2025-06-01 08:32:10] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:32:10] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:32:10] [INFO ] [Nat]Absence check using state equation in 72 ms returned sat
[2025-06-01 08:32:10] [INFO ] [Nat]Added 30 Read/Feed constraints in 11 ms returned sat
[2025-06-01 08:32:10] [INFO ] Deduced a trap composed of 30 places in 92 ms of which 2 ms to minimize.
[2025-06-01 08:32:10] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 109 ms
[2025-06-01 08:32:10] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 17 ms.
[2025-06-01 08:32:10] [INFO ] Added : 6 causal constraints over 2 iterations in 67 ms. Result :sat
Minimization took 42 ms.
[2025-06-01 08:32:11] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:32:11] [INFO ] [Real]Absence check using state equation in 75 ms returned sat
[2025-06-01 08:32:11] [INFO ] [Real]Added 30 Read/Feed constraints in 8 ms returned sat
[2025-06-01 08:32:11] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:32:11] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:32:11] [INFO ] [Nat]Absence check using state equation in 76 ms returned sat
[2025-06-01 08:32:11] [INFO ] [Nat]Added 30 Read/Feed constraints in 8 ms returned sat
[2025-06-01 08:32:11] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 19 ms.
[2025-06-01 08:32:11] [INFO ] Added : 15 causal constraints over 5 iterations in 110 ms. Result :sat
Minimization took 43 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[42149, 37203, 435, 377, 72, 69, 1528] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[42156, 37203, 435, 377, 72, 69, 1528] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf]
Support contains 7 out of 112 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 112/112 places, 274/274 transitions.
Applied a total of 0 rules in 16 ms. Remains 112 /112 variables (removed 0) and now considering 274/274 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 18 ms. Remains : 112/112 places, 274/274 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 112/112 places, 274/274 transitions.
Applied a total of 0 rules in 6 ms. Remains 112 /112 variables (removed 0) and now considering 274/274 (removed 0) transitions.
[2025-06-01 08:33:18] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 08:33:18] [INFO ] Invariant cache hit.
[2025-06-01 08:33:18] [INFO ] Implicit Places using invariants in 184 ms returned []
[2025-06-01 08:33:18] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 08:33:18] [INFO ] Invariant cache hit.
[2025-06-01 08:33:18] [INFO ] State equation strengthened by 30 read => feed constraints.
[2025-06-01 08:33:18] [INFO ] Implicit Places using invariants and state equation in 249 ms returned []
Implicit Place search using SMT with State Equation took 436 ms to find 0 implicit places.
[2025-06-01 08:33:18] [INFO ] Redundant transitions in 1 ms returned []
Running 272 sub problems to find dead transitions.
[2025-06-01 08:33:18] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 08:33:18] [INFO ] Invariant cache hit.
[2025-06-01 08:33:18] [INFO ] State equation strengthened by 30 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/111 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/111 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 2 (OVERLAPS) 180/291 variables, 111/114 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/291 variables, 30/144 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/291 variables, 0/144 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 5 (OVERLAPS) 1/292 variables, 1/145 constraints. Problems are: Problem set: 0 solved, 272 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/292 variables, 0/145 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 7 (OVERLAPS) 0/292 variables, 0/145 constraints. Problems are: Problem set: 0 solved, 272 unsolved
No progress, stopping.
After SMT solving in domain Real declared 292/292 variables, and 145 constraints, problems are : Problem set: 0 solved, 272 unsolved in 10804 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 112/112 constraints, ReadFeed: 30/30 constraints, PredecessorRefiner: 272/272 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 272 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/111 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/111 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 2 (OVERLAPS) 180/291 variables, 111/114 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/291 variables, 30/144 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/291 variables, 32/176 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/291 variables, 0/176 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 6 (OVERLAPS) 1/292 variables, 1/177 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/292 variables, 240/417 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/292 variables, 0/417 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 9 (OVERLAPS) 0/292 variables, 0/417 constraints. Problems are: Problem set: 0 solved, 272 unsolved
No progress, stopping.
After SMT solving in domain Int declared 292/292 variables, and 417 constraints, problems are : Problem set: 0 solved, 272 unsolved in 15894 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 112/112 constraints, ReadFeed: 30/30 constraints, PredecessorRefiner: 272/272 constraints, Known Traps: 0/0 constraints]
After SMT, in 26961ms problems are : Problem set: 0 solved, 272 unsolved
Search for dead transitions found 0 dead transitions in 26964ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 27415 ms. Remains : 112/112 places, 274/274 transitions.
[2025-06-01 08:33:45] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
Found an invariant !
This invariant on transitions {25=1, 84=1, 138=1, 177=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {25=1, 84=1, 122=1, 172=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 67 ms. (steps per millisecond=149 ) properties (out of 7) seen :[14, 18, 7, 4, 3, 2, 6]
Current structural bounds on expressions (after cover walk) : Max Seen:[42156, 37203, 435, 377, 72, 69, 1528] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 08:33:45] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 08:33:45] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[42156, 37203, 435, 377, 72, 69, 1528] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 1947 ms. (513 steps per ms)
BEST_FIRST walk for 7000007 steps (14 resets) in 7933 ms. (882 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[42156, 37203, 435, 377, 72, 69, 1528] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 08:33:55] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 08:33:55] [INFO ] Invariant cache hit.
[2025-06-01 08:33:55] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 08:33:55] [INFO ] [Real]Absence check using state equation in 58 ms returned sat
[2025-06-01 08:33:55] [INFO ] State equation strengthened by 30 read => feed constraints.
[2025-06-01 08:33:55] [INFO ] [Real]Added 30 Read/Feed constraints in 7 ms returned sat
[2025-06-01 08:33:55] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:33:55] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 08:33:56] [INFO ] [Nat]Absence check using state equation in 59 ms returned sat
[2025-06-01 08:33:56] [INFO ] [Nat]Added 30 Read/Feed constraints in 6 ms returned sat
[2025-06-01 08:33:56] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 15 ms.
[2025-06-01 08:33:56] [INFO ] Added : 7 causal constraints over 4 iterations in 74 ms. Result :sat
Minimization took 43 ms.
[2025-06-01 08:33:56] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:33:56] [INFO ] [Real]Absence check using state equation in 87 ms returned sat
[2025-06-01 08:33:56] [INFO ] [Real]Added 30 Read/Feed constraints in 13 ms returned sat
[2025-06-01 08:33:56] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:33:56] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:33:56] [INFO ] [Nat]Absence check using state equation in 60 ms returned sat
[2025-06-01 08:33:56] [INFO ] [Nat]Added 30 Read/Feed constraints in 8 ms returned sat
[2025-06-01 08:33:56] [INFO ] Deduced a trap composed of 33 places in 75 ms of which 1 ms to minimize.
[2025-06-01 08:33:56] [INFO ] Deduced a trap composed of 31 places in 77 ms of which 2 ms to minimize.
[2025-06-01 08:33:56] [INFO ] Deduced a trap composed of 22 places in 76 ms of which 2 ms to minimize.
[2025-06-01 08:33:56] [INFO ] Trap strengthening (SAT) tested/added 4/3 trap constraints in 260 ms
[2025-06-01 08:33:56] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 18 ms.
[2025-06-01 08:33:56] [INFO ] Added : 39 causal constraints over 8 iterations in 167 ms. Result :sat
Minimization took 53 ms.
[2025-06-01 08:33:56] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:33:57] [INFO ] [Real]Absence check using state equation in 75 ms returned sat
[2025-06-01 08:33:57] [INFO ] [Real]Added 30 Read/Feed constraints in 9 ms returned sat
[2025-06-01 08:33:57] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:33:57] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:33:57] [INFO ] [Nat]Absence check using state equation in 76 ms returned sat
[2025-06-01 08:33:57] [INFO ] [Nat]Added 30 Read/Feed constraints in 10 ms returned sat
[2025-06-01 08:33:57] [INFO ] Deduced a trap composed of 33 places in 92 ms of which 2 ms to minimize.
[2025-06-01 08:33:57] [INFO ] Deduced a trap composed of 31 places in 94 ms of which 2 ms to minimize.
[2025-06-01 08:33:57] [INFO ] Deduced a trap composed of 22 places in 133 ms of which 3 ms to minimize.
[2025-06-01 08:33:57] [INFO ] Deduced a trap composed of 24 places in 136 ms of which 2 ms to minimize.
[2025-06-01 08:33:57] [INFO ] Trap strengthening (SAT) tested/added 5/4 trap constraints in 503 ms
[2025-06-01 08:33:57] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 16 ms.
[2025-06-01 08:33:57] [INFO ] Added : 19 causal constraints over 5 iterations in 115 ms. Result :sat
Minimization took 48 ms.
[2025-06-01 08:33:57] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:33:57] [INFO ] [Real]Absence check using state equation in 76 ms returned sat
[2025-06-01 08:33:57] [INFO ] [Real]Added 30 Read/Feed constraints in 6 ms returned sat
[2025-06-01 08:33:57] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:33:58] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 08:33:58] [INFO ] [Nat]Absence check using state equation in 85 ms returned sat
[2025-06-01 08:33:58] [INFO ] [Nat]Added 30 Read/Feed constraints in 9 ms returned sat
[2025-06-01 08:33:58] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 16 ms.
[2025-06-01 08:33:58] [INFO ] Deduced a trap composed of 25 places in 70 ms of which 2 ms to minimize.
[2025-06-01 08:33:58] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 93 ms
[2025-06-01 08:33:58] [INFO ] Added : 9 causal constraints over 5 iterations in 215 ms. Result :sat
Minimization took 71 ms.
[2025-06-01 08:33:58] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 08:33:58] [INFO ] [Real]Absence check using state equation in 56 ms returned sat
[2025-06-01 08:33:58] [INFO ] [Real]Added 30 Read/Feed constraints in 8 ms returned sat
[2025-06-01 08:33:58] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:33:58] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:33:58] [INFO ] [Nat]Absence check using state equation in 81 ms returned sat
[2025-06-01 08:33:58] [INFO ] [Nat]Added 30 Read/Feed constraints in 11 ms returned sat
[2025-06-01 08:33:58] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 16 ms.
[2025-06-01 08:33:58] [INFO ] Added : 36 causal constraints over 10 iterations in 218 ms. Result :sat
Minimization took 89 ms.
[2025-06-01 08:33:59] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 08:33:59] [INFO ] [Real]Absence check using state equation in 61 ms returned sat
[2025-06-01 08:33:59] [INFO ] [Real]Added 30 Read/Feed constraints in 10 ms returned sat
[2025-06-01 08:33:59] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:33:59] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:33:59] [INFO ] [Nat]Absence check using state equation in 78 ms returned sat
[2025-06-01 08:33:59] [INFO ] [Nat]Added 30 Read/Feed constraints in 22 ms returned sat
[2025-06-01 08:33:59] [INFO ] Deduced a trap composed of 30 places in 98 ms of which 2 ms to minimize.
[2025-06-01 08:33:59] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 118 ms
[2025-06-01 08:33:59] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 17 ms.
[2025-06-01 08:33:59] [INFO ] Added : 6 causal constraints over 2 iterations in 76 ms. Result :sat
Minimization took 69 ms.
[2025-06-01 08:33:59] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:33:59] [INFO ] [Real]Absence check using state equation in 78 ms returned sat
[2025-06-01 08:33:59] [INFO ] [Real]Added 30 Read/Feed constraints in 10 ms returned sat
[2025-06-01 08:33:59] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:33:59] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:33:59] [INFO ] [Nat]Absence check using state equation in 81 ms returned sat
[2025-06-01 08:33:59] [INFO ] [Nat]Added 30 Read/Feed constraints in 9 ms returned sat
[2025-06-01 08:33:59] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 17 ms.
[2025-06-01 08:33:59] [INFO ] Added : 15 causal constraints over 5 iterations in 121 ms. Result :sat
Minimization took 73 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[42156, 37203, 435, 377, 72, 69, 1528] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[42162, 37771, 435, 377, 72, 69, 1528] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf]
Support contains 7 out of 112 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 112/112 places, 274/274 transitions.
Applied a total of 0 rules in 6 ms. Remains 112 /112 variables (removed 0) and now considering 274/274 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 7 ms. Remains : 112/112 places, 274/274 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 112/112 places, 274/274 transitions.
Applied a total of 0 rules in 5 ms. Remains 112 /112 variables (removed 0) and now considering 274/274 (removed 0) transitions.
[2025-06-01 08:35:06] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 08:35:06] [INFO ] Invariant cache hit.
[2025-06-01 08:35:06] [INFO ] Implicit Places using invariants in 146 ms returned []
[2025-06-01 08:35:06] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 08:35:06] [INFO ] Invariant cache hit.
[2025-06-01 08:35:07] [INFO ] State equation strengthened by 30 read => feed constraints.
[2025-06-01 08:35:07] [INFO ] Implicit Places using invariants and state equation in 234 ms returned []
Implicit Place search using SMT with State Equation took 383 ms to find 0 implicit places.
[2025-06-01 08:35:07] [INFO ] Redundant transitions in 1 ms returned []
Running 272 sub problems to find dead transitions.
[2025-06-01 08:35:07] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 08:35:07] [INFO ] Invariant cache hit.
[2025-06-01 08:35:07] [INFO ] State equation strengthened by 30 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/111 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/111 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 2 (OVERLAPS) 180/291 variables, 111/114 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/291 variables, 30/144 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/291 variables, 0/144 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 5 (OVERLAPS) 1/292 variables, 1/145 constraints. Problems are: Problem set: 0 solved, 272 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/292 variables, 0/145 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 7 (OVERLAPS) 0/292 variables, 0/145 constraints. Problems are: Problem set: 0 solved, 272 unsolved
No progress, stopping.
After SMT solving in domain Real declared 292/292 variables, and 145 constraints, problems are : Problem set: 0 solved, 272 unsolved in 10744 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 112/112 constraints, ReadFeed: 30/30 constraints, PredecessorRefiner: 272/272 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 272 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/111 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/111 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 2 (OVERLAPS) 180/291 variables, 111/114 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/291 variables, 30/144 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/291 variables, 32/176 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/291 variables, 0/176 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 6 (OVERLAPS) 1/292 variables, 1/177 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/292 variables, 240/417 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/292 variables, 0/417 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 9 (OVERLAPS) 0/292 variables, 0/417 constraints. Problems are: Problem set: 0 solved, 272 unsolved
No progress, stopping.
After SMT solving in domain Int declared 292/292 variables, and 417 constraints, problems are : Problem set: 0 solved, 272 unsolved in 17083 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 112/112 constraints, ReadFeed: 30/30 constraints, PredecessorRefiner: 272/272 constraints, Known Traps: 0/0 constraints]
After SMT, in 28190ms problems are : Problem set: 0 solved, 272 unsolved
Search for dead transitions found 0 dead transitions in 28193ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 28588 ms. Remains : 112/112 places, 274/274 transitions.
[2025-06-01 08:35:35] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
Found an invariant !
This invariant on transitions {25=1, 84=1, 138=1, 177=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {25=1, 84=1, 122=1, 172=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 7) seen :[9, 18, 5, 8, 5, 2, 12]
Current structural bounds on expressions (after cover walk) : Max Seen:[42162, 37771, 435, 377, 72, 69, 1528] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 08:35:35] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 08:35:35] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[42162, 37771, 435, 377, 72, 69, 1528] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 1714 ms. (583 steps per ms)
BEST_FIRST walk for 7000007 steps (14 resets) in 8389 ms. (834 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[42162, 37771, 435, 377, 72, 69, 1528] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 08:35:45] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 08:35:45] [INFO ] Invariant cache hit.
[2025-06-01 08:35:45] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 08:35:45] [INFO ] [Real]Absence check using state equation in 62 ms returned sat
[2025-06-01 08:35:45] [INFO ] State equation strengthened by 30 read => feed constraints.
[2025-06-01 08:35:45] [INFO ] [Real]Added 30 Read/Feed constraints in 7 ms returned sat
[2025-06-01 08:35:45] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:35:45] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:35:45] [INFO ] [Nat]Absence check using state equation in 62 ms returned sat
[2025-06-01 08:35:45] [INFO ] [Nat]Added 30 Read/Feed constraints in 7 ms returned sat
[2025-06-01 08:35:45] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 16 ms.
[2025-06-01 08:35:45] [INFO ] Added : 7 causal constraints over 4 iterations in 74 ms. Result :sat
Minimization took 41 ms.
[2025-06-01 08:35:46] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:35:46] [INFO ] [Real]Absence check using state equation in 60 ms returned sat
[2025-06-01 08:35:46] [INFO ] [Real]Added 30 Read/Feed constraints in 8 ms returned sat
[2025-06-01 08:35:46] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:35:46] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:35:46] [INFO ] [Nat]Absence check using state equation in 60 ms returned sat
[2025-06-01 08:35:46] [INFO ] [Nat]Added 30 Read/Feed constraints in 8 ms returned sat
[2025-06-01 08:35:46] [INFO ] Deduced a trap composed of 33 places in 75 ms of which 2 ms to minimize.
[2025-06-01 08:35:46] [INFO ] Deduced a trap composed of 31 places in 91 ms of which 2 ms to minimize.
[2025-06-01 08:35:46] [INFO ] Deduced a trap composed of 22 places in 88 ms of which 1 ms to minimize.
[2025-06-01 08:35:46] [INFO ] Trap strengthening (SAT) tested/added 4/3 trap constraints in 291 ms
[2025-06-01 08:35:46] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 22 ms.
[2025-06-01 08:35:46] [INFO ] Added : 39 causal constraints over 8 iterations in 223 ms. Result :sat
Minimization took 90 ms.
[2025-06-01 08:35:46] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:35:46] [INFO ] [Real]Absence check using state equation in 77 ms returned sat
[2025-06-01 08:35:46] [INFO ] [Real]Added 30 Read/Feed constraints in 9 ms returned sat
[2025-06-01 08:35:46] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:35:47] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 08:35:47] [INFO ] [Nat]Absence check using state equation in 74 ms returned sat
[2025-06-01 08:35:47] [INFO ] [Nat]Added 30 Read/Feed constraints in 9 ms returned sat
[2025-06-01 08:35:47] [INFO ] Deduced a trap composed of 33 places in 90 ms of which 2 ms to minimize.
[2025-06-01 08:35:47] [INFO ] Deduced a trap composed of 31 places in 88 ms of which 3 ms to minimize.
[2025-06-01 08:35:47] [INFO ] Deduced a trap composed of 22 places in 88 ms of which 1 ms to minimize.
[2025-06-01 08:35:47] [INFO ] Deduced a trap composed of 24 places in 88 ms of which 2 ms to minimize.
[2025-06-01 08:35:47] [INFO ] Trap strengthening (SAT) tested/added 5/4 trap constraints in 408 ms
[2025-06-01 08:35:47] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 22 ms.
[2025-06-01 08:35:47] [INFO ] Added : 19 causal constraints over 5 iterations in 130 ms. Result :sat
Minimization took 48 ms.
[2025-06-01 08:35:47] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 08:35:47] [INFO ] [Real]Absence check using state equation in 78 ms returned sat
[2025-06-01 08:35:47] [INFO ] [Real]Added 30 Read/Feed constraints in 6 ms returned sat
[2025-06-01 08:35:47] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:35:47] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:35:47] [INFO ] [Nat]Absence check using state equation in 77 ms returned sat
[2025-06-01 08:35:47] [INFO ] [Nat]Added 30 Read/Feed constraints in 6 ms returned sat
[2025-06-01 08:35:47] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 18 ms.
[2025-06-01 08:35:48] [INFO ] Deduced a trap composed of 25 places in 89 ms of which 2 ms to minimize.
[2025-06-01 08:35:48] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 135 ms
[2025-06-01 08:35:48] [INFO ] Added : 9 causal constraints over 5 iterations in 246 ms. Result :sat
Minimization took 44 ms.
[2025-06-01 08:35:48] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 08:35:48] [INFO ] [Real]Absence check using state equation in 93 ms returned sat
[2025-06-01 08:35:48] [INFO ] [Real]Added 30 Read/Feed constraints in 13 ms returned sat
[2025-06-01 08:35:48] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:35:48] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 08:35:48] [INFO ] [Nat]Absence check using state equation in 76 ms returned sat
[2025-06-01 08:35:48] [INFO ] [Nat]Added 30 Read/Feed constraints in 9 ms returned sat
[2025-06-01 08:35:48] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 20 ms.
[2025-06-01 08:35:48] [INFO ] Added : 36 causal constraints over 10 iterations in 192 ms. Result :sat
Minimization took 54 ms.
[2025-06-01 08:35:48] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 08:35:48] [INFO ] [Real]Absence check using state equation in 94 ms returned sat
[2025-06-01 08:35:49] [INFO ] [Real]Added 30 Read/Feed constraints in 17 ms returned sat
[2025-06-01 08:35:49] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:35:49] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:35:49] [INFO ] [Nat]Absence check using state equation in 75 ms returned sat
[2025-06-01 08:35:49] [INFO ] [Nat]Added 30 Read/Feed constraints in 11 ms returned sat
[2025-06-01 08:35:49] [INFO ] Deduced a trap composed of 30 places in 90 ms of which 2 ms to minimize.
[2025-06-01 08:35:49] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 110 ms
[2025-06-01 08:35:49] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 23 ms.
[2025-06-01 08:35:49] [INFO ] Added : 6 causal constraints over 2 iterations in 90 ms. Result :sat
Minimization took 71 ms.
[2025-06-01 08:35:49] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:35:49] [INFO ] [Real]Absence check using state equation in 86 ms returned sat
[2025-06-01 08:35:49] [INFO ] [Real]Added 30 Read/Feed constraints in 7 ms returned sat
[2025-06-01 08:35:49] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:35:49] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:35:49] [INFO ] [Nat]Absence check using state equation in 76 ms returned sat
[2025-06-01 08:35:49] [INFO ] [Nat]Added 30 Read/Feed constraints in 7 ms returned sat
[2025-06-01 08:35:49] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 19 ms.
[2025-06-01 08:35:49] [INFO ] Added : 15 causal constraints over 5 iterations in 111 ms. Result :sat
Minimization took 75 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[42162, 37771, 435, 377, 72, 69, 1528] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[42191, 37771, 435, 377, 72, 69, 1528] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf]
Support contains 7 out of 112 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 112/112 places, 274/274 transitions.
Applied a total of 0 rules in 6 ms. Remains 112 /112 variables (removed 0) and now considering 274/274 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 6 ms. Remains : 112/112 places, 274/274 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 112/112 places, 274/274 transitions.
Applied a total of 0 rules in 8 ms. Remains 112 /112 variables (removed 0) and now considering 274/274 (removed 0) transitions.
[2025-06-01 08:36:57] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 08:36:57] [INFO ] Invariant cache hit.
[2025-06-01 08:36:57] [INFO ] Implicit Places using invariants in 183 ms returned []
[2025-06-01 08:36:57] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 08:36:57] [INFO ] Invariant cache hit.
[2025-06-01 08:36:57] [INFO ] State equation strengthened by 30 read => feed constraints.
[2025-06-01 08:36:57] [INFO ] Implicit Places using invariants and state equation in 252 ms returned []
Implicit Place search using SMT with State Equation took 437 ms to find 0 implicit places.
[2025-06-01 08:36:57] [INFO ] Redundant transitions in 1 ms returned []
Running 272 sub problems to find dead transitions.
[2025-06-01 08:36:57] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 08:36:57] [INFO ] Invariant cache hit.
[2025-06-01 08:36:57] [INFO ] State equation strengthened by 30 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/111 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/111 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 2 (OVERLAPS) 180/291 variables, 111/114 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/291 variables, 30/144 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/291 variables, 0/144 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 5 (OVERLAPS) 1/292 variables, 1/145 constraints. Problems are: Problem set: 0 solved, 272 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/292 variables, 0/145 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 7 (OVERLAPS) 0/292 variables, 0/145 constraints. Problems are: Problem set: 0 solved, 272 unsolved
No progress, stopping.
After SMT solving in domain Real declared 292/292 variables, and 145 constraints, problems are : Problem set: 0 solved, 272 unsolved in 11051 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 112/112 constraints, ReadFeed: 30/30 constraints, PredecessorRefiner: 272/272 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 272 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/111 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/111 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 2 (OVERLAPS) 180/291 variables, 111/114 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/291 variables, 30/144 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/291 variables, 32/176 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/291 variables, 0/176 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 6 (OVERLAPS) 1/292 variables, 1/177 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/292 variables, 240/417 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/292 variables, 0/417 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 9 (OVERLAPS) 0/292 variables, 0/417 constraints. Problems are: Problem set: 0 solved, 272 unsolved
No progress, stopping.
After SMT solving in domain Int declared 292/292 variables, and 417 constraints, problems are : Problem set: 0 solved, 272 unsolved in 16041 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 112/112 constraints, ReadFeed: 30/30 constraints, PredecessorRefiner: 272/272 constraints, Known Traps: 0/0 constraints]
After SMT, in 27317ms problems are : Problem set: 0 solved, 272 unsolved
Search for dead transitions found 0 dead transitions in 27320ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 27771 ms. Remains : 112/112 places, 274/274 transitions.
[2025-06-01 08:37:24] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
Found an invariant !
This invariant on transitions {25=1, 84=1, 138=1, 177=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {25=1, 84=1, 122=1, 172=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 43 ms. (steps per millisecond=232 ) properties (out of 7) seen :[10, 18, 4, 8, 2, 2, 2147483647]
Current structural bounds on expressions (after cover walk) : Max Seen:[42191, 37771, 435, 377, 72, 69, +inf] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 08:37:24] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 08:37:24] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[42191, 37771, 435, 377, 72, 69, +inf] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 1550 ms. (644 steps per ms)
FORMULA FunctionPointer-PT-b032-UpperBounds-15 +inf TECHNIQUES TOPOLOGICAL RANDOM_WALK
BEST_FIRST walk for 6000006 steps (12 resets) in 7849 ms. (764 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[42191, 37771, 435, 377, 72, 69] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 08:37:34] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 08:37:34] [INFO ] Invariant cache hit.
[2025-06-01 08:37:34] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 08:37:34] [INFO ] [Real]Absence check using state equation in 49 ms returned sat
[2025-06-01 08:37:34] [INFO ] State equation strengthened by 30 read => feed constraints.
[2025-06-01 08:37:34] [INFO ] [Real]Added 30 Read/Feed constraints in 8 ms returned sat
[2025-06-01 08:37:34] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:37:34] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:37:34] [INFO ] [Nat]Absence check using state equation in 57 ms returned sat
[2025-06-01 08:37:34] [INFO ] [Nat]Added 30 Read/Feed constraints in 6 ms returned sat
[2025-06-01 08:37:34] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 28 ms.
[2025-06-01 08:37:34] [INFO ] Added : 7 causal constraints over 4 iterations in 86 ms. Result :sat
Minimization took 43 ms.
[2025-06-01 08:37:34] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 08:37:34] [INFO ] [Real]Absence check using state equation in 58 ms returned sat
[2025-06-01 08:37:34] [INFO ] [Real]Added 30 Read/Feed constraints in 8 ms returned sat
[2025-06-01 08:37:34] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:37:34] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:37:34] [INFO ] [Nat]Absence check using state equation in 64 ms returned sat
[2025-06-01 08:37:34] [INFO ] [Nat]Added 30 Read/Feed constraints in 8 ms returned sat
[2025-06-01 08:37:35] [INFO ] Deduced a trap composed of 33 places in 96 ms of which 3 ms to minimize.
[2025-06-01 08:37:35] [INFO ] Deduced a trap composed of 31 places in 76 ms of which 2 ms to minimize.
[2025-06-01 08:37:35] [INFO ] Deduced a trap composed of 22 places in 88 ms of which 1 ms to minimize.
[2025-06-01 08:37:35] [INFO ] Trap strengthening (SAT) tested/added 4/3 trap constraints in 298 ms
[2025-06-01 08:37:35] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 16 ms.
[2025-06-01 08:37:35] [INFO ] Added : 39 causal constraints over 8 iterations in 193 ms. Result :sat
Minimization took 89 ms.
[2025-06-01 08:37:35] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 08:37:35] [INFO ] [Real]Absence check using state equation in 80 ms returned sat
[2025-06-01 08:37:35] [INFO ] [Real]Added 30 Read/Feed constraints in 11 ms returned sat
[2025-06-01 08:37:35] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:37:35] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 08:37:35] [INFO ] [Nat]Absence check using state equation in 58 ms returned sat
[2025-06-01 08:37:35] [INFO ] [Nat]Added 30 Read/Feed constraints in 8 ms returned sat
[2025-06-01 08:37:35] [INFO ] Deduced a trap composed of 33 places in 91 ms of which 3 ms to minimize.
[2025-06-01 08:37:35] [INFO ] Deduced a trap composed of 31 places in 106 ms of which 3 ms to minimize.
[2025-06-01 08:37:36] [INFO ] Deduced a trap composed of 22 places in 140 ms of which 2 ms to minimize.
[2025-06-01 08:37:36] [INFO ] Deduced a trap composed of 24 places in 142 ms of which 2 ms to minimize.
[2025-06-01 08:37:36] [INFO ] Trap strengthening (SAT) tested/added 5/4 trap constraints in 520 ms
[2025-06-01 08:37:36] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 17 ms.
[2025-06-01 08:37:36] [INFO ] Added : 19 causal constraints over 5 iterations in 116 ms. Result :sat
Minimization took 50 ms.
[2025-06-01 08:37:36] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:37:36] [INFO ] [Real]Absence check using state equation in 58 ms returned sat
[2025-06-01 08:37:36] [INFO ] [Real]Added 30 Read/Feed constraints in 6 ms returned sat
[2025-06-01 08:37:36] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:37:36] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 08:37:36] [INFO ] [Nat]Absence check using state equation in 72 ms returned sat
[2025-06-01 08:37:36] [INFO ] [Nat]Added 30 Read/Feed constraints in 8 ms returned sat
[2025-06-01 08:37:36] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 18 ms.
[2025-06-01 08:37:36] [INFO ] Deduced a trap composed of 25 places in 89 ms of which 2 ms to minimize.
[2025-06-01 08:37:36] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 111 ms
[2025-06-01 08:37:36] [INFO ] Added : 9 causal constraints over 5 iterations in 224 ms. Result :sat
Minimization took 43 ms.
[2025-06-01 08:37:37] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:37:37] [INFO ] [Real]Absence check using state equation in 76 ms returned sat
[2025-06-01 08:37:37] [INFO ] [Real]Added 30 Read/Feed constraints in 9 ms returned sat
[2025-06-01 08:37:37] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:37:37] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 08:37:37] [INFO ] [Nat]Absence check using state equation in 95 ms returned sat
[2025-06-01 08:37:37] [INFO ] [Nat]Added 30 Read/Feed constraints in 19 ms returned sat
[2025-06-01 08:37:37] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 25 ms.
[2025-06-01 08:37:37] [INFO ] Added : 36 causal constraints over 10 iterations in 266 ms. Result :sat
Minimization took 89 ms.
[2025-06-01 08:37:37] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:37:37] [INFO ] [Real]Absence check using state equation in 76 ms returned sat
[2025-06-01 08:37:37] [INFO ] [Real]Added 30 Read/Feed constraints in 11 ms returned sat
[2025-06-01 08:37:37] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:37:37] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:37:37] [INFO ] [Nat]Absence check using state equation in 76 ms returned sat
[2025-06-01 08:37:37] [INFO ] [Nat]Added 30 Read/Feed constraints in 10 ms returned sat
[2025-06-01 08:37:38] [INFO ] Deduced a trap composed of 30 places in 140 ms of which 3 ms to minimize.
[2025-06-01 08:37:38] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 158 ms
[2025-06-01 08:37:38] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 17 ms.
[2025-06-01 08:37:38] [INFO ] Added : 6 causal constraints over 2 iterations in 70 ms. Result :sat
Minimization took 42 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[42191, 37771, 435, 377, 72, 69] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[42201, 37771, 435, 377, 72, 69] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Support contains 6 out of 112 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 112/112 places, 274/274 transitions.
Applied a total of 0 rules in 11 ms. Remains 112 /112 variables (removed 0) and now considering 274/274 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 11 ms. Remains : 112/112 places, 274/274 transitions.
[2025-06-01 08:38:42] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
Found an invariant !
This invariant on transitions {25=1, 84=1, 138=1, 177=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {25=1, 84=1, 122=1, 172=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 66 ms. (steps per millisecond=151 ) properties (out of 6) seen :[9, 17, 13, 6, 2, 2]
Current structural bounds on expressions (after cover walk) : Max Seen:[42201, 37771, 435, 377, 72, 69] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 08:38:42] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 08:38:42] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[42201, 37771, 435, 377, 72, 69] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 1709 ms. (584 steps per ms)
BEST_FIRST walk for 6000006 steps (12 resets) in 6843 ms. (876 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[42201, 37771, 435, 377, 72, 69] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 08:38:50] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 08:38:50] [INFO ] Invariant cache hit.
[2025-06-01 08:38:50] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:38:50] [INFO ] [Real]Absence check using state equation in 59 ms returned sat
[2025-06-01 08:38:50] [INFO ] State equation strengthened by 30 read => feed constraints.
[2025-06-01 08:38:50] [INFO ] [Real]Added 30 Read/Feed constraints in 7 ms returned sat
[2025-06-01 08:38:50] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:38:51] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 08:38:51] [INFO ] [Nat]Absence check using state equation in 62 ms returned sat
[2025-06-01 08:38:51] [INFO ] [Nat]Added 30 Read/Feed constraints in 6 ms returned sat
[2025-06-01 08:38:51] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 15 ms.
[2025-06-01 08:38:51] [INFO ] Added : 7 causal constraints over 4 iterations in 73 ms. Result :sat
Minimization took 43 ms.
[2025-06-01 08:38:51] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 08:38:51] [INFO ] [Real]Absence check using state equation in 76 ms returned sat
[2025-06-01 08:38:51] [INFO ] [Real]Added 30 Read/Feed constraints in 12 ms returned sat
[2025-06-01 08:38:51] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:38:51] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 08:38:51] [INFO ] [Nat]Absence check using state equation in 73 ms returned sat
[2025-06-01 08:38:51] [INFO ] [Nat]Added 30 Read/Feed constraints in 9 ms returned sat
[2025-06-01 08:38:51] [INFO ] Deduced a trap composed of 33 places in 139 ms of which 3 ms to minimize.
[2025-06-01 08:38:51] [INFO ] Deduced a trap composed of 31 places in 159 ms of which 3 ms to minimize.
[2025-06-01 08:38:51] [INFO ] Deduced a trap composed of 22 places in 151 ms of which 2 ms to minimize.
[2025-06-01 08:38:51] [INFO ] Trap strengthening (SAT) tested/added 4/3 trap constraints in 489 ms
[2025-06-01 08:38:51] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 19 ms.
[2025-06-01 08:38:52] [INFO ] Added : 39 causal constraints over 8 iterations in 168 ms. Result :sat
Minimization took 53 ms.
[2025-06-01 08:38:52] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:38:52] [INFO ] [Real]Absence check using state equation in 85 ms returned sat
[2025-06-01 08:38:52] [INFO ] [Real]Added 30 Read/Feed constraints in 11 ms returned sat
[2025-06-01 08:38:52] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:38:52] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:38:52] [INFO ] [Nat]Absence check using state equation in 80 ms returned sat
[2025-06-01 08:38:52] [INFO ] [Nat]Added 30 Read/Feed constraints in 11 ms returned sat
[2025-06-01 08:38:52] [INFO ] Deduced a trap composed of 33 places in 95 ms of which 2 ms to minimize.
[2025-06-01 08:38:52] [INFO ] Deduced a trap composed of 31 places in 113 ms of which 3 ms to minimize.
[2025-06-01 08:38:52] [INFO ] Deduced a trap composed of 22 places in 124 ms of which 2 ms to minimize.
[2025-06-01 08:38:52] [INFO ] Deduced a trap composed of 24 places in 75 ms of which 2 ms to minimize.
[2025-06-01 08:38:52] [INFO ] Trap strengthening (SAT) tested/added 5/4 trap constraints in 456 ms
[2025-06-01 08:38:52] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 15 ms.
[2025-06-01 08:38:53] [INFO ] Added : 19 causal constraints over 5 iterations in 132 ms. Result :sat
Minimization took 79 ms.
[2025-06-01 08:38:53] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:38:53] [INFO ] [Real]Absence check using state equation in 81 ms returned sat
[2025-06-01 08:38:53] [INFO ] [Real]Added 30 Read/Feed constraints in 7 ms returned sat
[2025-06-01 08:38:53] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:38:53] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 08:38:53] [INFO ] [Nat]Absence check using state equation in 81 ms returned sat
[2025-06-01 08:38:53] [INFO ] [Nat]Added 30 Read/Feed constraints in 9 ms returned sat
[2025-06-01 08:38:53] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 16 ms.
[2025-06-01 08:38:53] [INFO ] Deduced a trap composed of 25 places in 94 ms of which 3 ms to minimize.
[2025-06-01 08:38:53] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 119 ms
[2025-06-01 08:38:53] [INFO ] Added : 9 causal constraints over 5 iterations in 244 ms. Result :sat
Minimization took 71 ms.
[2025-06-01 08:38:53] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 08:38:53] [INFO ] [Real]Absence check using state equation in 80 ms returned sat
[2025-06-01 08:38:53] [INFO ] [Real]Added 30 Read/Feed constraints in 12 ms returned sat
[2025-06-01 08:38:53] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:38:54] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 08:38:54] [INFO ] [Nat]Absence check using state equation in 81 ms returned sat
[2025-06-01 08:38:54] [INFO ] [Nat]Added 30 Read/Feed constraints in 11 ms returned sat
[2025-06-01 08:38:54] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 17 ms.
[2025-06-01 08:38:54] [INFO ] Added : 36 causal constraints over 10 iterations in 221 ms. Result :sat
Minimization took 89 ms.
[2025-06-01 08:38:54] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 08:38:54] [INFO ] [Real]Absence check using state equation in 80 ms returned sat
[2025-06-01 08:38:54] [INFO ] [Real]Added 30 Read/Feed constraints in 15 ms returned sat
[2025-06-01 08:38:54] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:38:54] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:38:54] [INFO ] [Nat]Absence check using state equation in 79 ms returned sat
[2025-06-01 08:38:54] [INFO ] [Nat]Added 30 Read/Feed constraints in 14 ms returned sat
[2025-06-01 08:38:54] [INFO ] Deduced a trap composed of 30 places in 93 ms of which 2 ms to minimize.
[2025-06-01 08:38:54] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 113 ms
[2025-06-01 08:38:54] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 17 ms.
[2025-06-01 08:38:54] [INFO ] Added : 6 causal constraints over 2 iterations in 74 ms. Result :sat
Minimization took 70 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[42201, 37771, 435, 377, 72, 69] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[42212, 37771, 599, 377, 72, 69] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Support contains 6 out of 112 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 112/112 places, 274/274 transitions.
Applied a total of 0 rules in 6 ms. Remains 112 /112 variables (removed 0) and now considering 274/274 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 6 ms. Remains : 112/112 places, 274/274 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 112/112 places, 274/274 transitions.
Applied a total of 0 rules in 6 ms. Remains 112 /112 variables (removed 0) and now considering 274/274 (removed 0) transitions.
[2025-06-01 08:39:59] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 08:39:59] [INFO ] Invariant cache hit.
[2025-06-01 08:39:59] [INFO ] Implicit Places using invariants in 122 ms returned []
[2025-06-01 08:39:59] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 08:39:59] [INFO ] Invariant cache hit.
[2025-06-01 08:39:59] [INFO ] State equation strengthened by 30 read => feed constraints.
[2025-06-01 08:39:59] [INFO ] Implicit Places using invariants and state equation in 239 ms returned []
Implicit Place search using SMT with State Equation took 391 ms to find 0 implicit places.
[2025-06-01 08:39:59] [INFO ] Redundant transitions in 1 ms returned []
Running 272 sub problems to find dead transitions.
[2025-06-01 08:39:59] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 08:39:59] [INFO ] Invariant cache hit.
[2025-06-01 08:39:59] [INFO ] State equation strengthened by 30 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/111 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/111 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 2 (OVERLAPS) 180/291 variables, 111/114 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/291 variables, 30/144 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/291 variables, 0/144 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 5 (OVERLAPS) 1/292 variables, 1/145 constraints. Problems are: Problem set: 0 solved, 272 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/292 variables, 0/145 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 7 (OVERLAPS) 0/292 variables, 0/145 constraints. Problems are: Problem set: 0 solved, 272 unsolved
No progress, stopping.
After SMT solving in domain Real declared 292/292 variables, and 145 constraints, problems are : Problem set: 0 solved, 272 unsolved in 13809 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 112/112 constraints, ReadFeed: 30/30 constraints, PredecessorRefiner: 272/272 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 272 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/111 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/111 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 2 (OVERLAPS) 180/291 variables, 111/114 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/291 variables, 30/144 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/291 variables, 32/176 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/291 variables, 0/176 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 6 (OVERLAPS) 1/292 variables, 1/177 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/292 variables, 240/417 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/292 variables, 0/417 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 9 (OVERLAPS) 0/292 variables, 0/417 constraints. Problems are: Problem set: 0 solved, 272 unsolved
No progress, stopping.
After SMT solving in domain Int declared 292/292 variables, and 417 constraints, problems are : Problem set: 0 solved, 272 unsolved in 19119 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 112/112 constraints, ReadFeed: 30/30 constraints, PredecessorRefiner: 272/272 constraints, Known Traps: 0/0 constraints]
After SMT, in 33184ms problems are : Problem set: 0 solved, 272 unsolved
Search for dead transitions found 0 dead transitions in 33188ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 33592 ms. Remains : 112/112 places, 274/274 transitions.
[2025-06-01 08:40:32] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
Found an invariant !
This invariant on transitions {25=1, 84=1, 138=1, 177=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {25=1, 84=1, 122=1, 172=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 :[15, 21, 6, 4, 3, 2]
Current structural bounds on expressions (after cover walk) : Max Seen:[42212, 37771, 599, 377, 72, 69] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 08:40:32] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 08:40:32] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[42212, 37771, 599, 377, 72, 69] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000004 steps (2 resets) in 1507 ms. (663 steps per ms)
BEST_FIRST walk for 6000006 steps (12 resets) in 7583 ms. (791 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[42212, 37771, 599, 377, 76, 74] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 08:40:41] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 08:40:41] [INFO ] Invariant cache hit.
[2025-06-01 08:40:41] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:40:42] [INFO ] [Real]Absence check using state equation in 56 ms returned sat
[2025-06-01 08:40:42] [INFO ] State equation strengthened by 30 read => feed constraints.
[2025-06-01 08:40:42] [INFO ] [Real]Added 30 Read/Feed constraints in 7 ms returned sat
[2025-06-01 08:40:42] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:40:42] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:40:42] [INFO ] [Nat]Absence check using state equation in 58 ms returned sat
[2025-06-01 08:40:42] [INFO ] [Nat]Added 30 Read/Feed constraints in 6 ms returned sat
[2025-06-01 08:40:42] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 16 ms.
[2025-06-01 08:40:42] [INFO ] Added : 7 causal constraints over 4 iterations in 76 ms. Result :sat
Minimization took 48 ms.
[2025-06-01 08:40:42] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 08:40:42] [INFO ] [Real]Absence check using state equation in 62 ms returned sat
[2025-06-01 08:40:42] [INFO ] [Real]Added 30 Read/Feed constraints in 9 ms returned sat
[2025-06-01 08:40:42] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:40:42] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 08:40:42] [INFO ] [Nat]Absence check using state equation in 64 ms returned sat
[2025-06-01 08:40:42] [INFO ] [Nat]Added 30 Read/Feed constraints in 9 ms returned sat
[2025-06-01 08:40:42] [INFO ] Deduced a trap composed of 33 places in 92 ms of which 2 ms to minimize.
[2025-06-01 08:40:42] [INFO ] Deduced a trap composed of 31 places in 107 ms of which 2 ms to minimize.
[2025-06-01 08:40:42] [INFO ] Deduced a trap composed of 22 places in 108 ms of which 2 ms to minimize.
[2025-06-01 08:40:42] [INFO ] Trap strengthening (SAT) tested/added 4/3 trap constraints in 354 ms
[2025-06-01 08:40:42] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 15 ms.
[2025-06-01 08:40:43] [INFO ] Added : 39 causal constraints over 8 iterations in 162 ms. Result :sat
Minimization took 67 ms.
[2025-06-01 08:40:43] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 08:40:43] [INFO ] [Real]Absence check using state equation in 74 ms returned sat
[2025-06-01 08:40:43] [INFO ] [Real]Added 30 Read/Feed constraints in 11 ms returned sat
[2025-06-01 08:40:43] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:40:43] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:40:43] [INFO ] [Nat]Absence check using state equation in 78 ms returned sat
[2025-06-01 08:40:43] [INFO ] [Nat]Added 30 Read/Feed constraints in 12 ms returned sat
[2025-06-01 08:40:43] [INFO ] Deduced a trap composed of 33 places in 132 ms of which 2 ms to minimize.
[2025-06-01 08:40:43] [INFO ] Deduced a trap composed of 31 places in 126 ms of which 2 ms to minimize.
[2025-06-01 08:40:43] [INFO ] Deduced a trap composed of 22 places in 119 ms of which 2 ms to minimize.
[2025-06-01 08:40:44] [INFO ] Deduced a trap composed of 24 places in 135 ms of which 2 ms to minimize.
[2025-06-01 08:40:44] [INFO ] Trap strengthening (SAT) tested/added 5/4 trap constraints in 570 ms
[2025-06-01 08:40:44] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 21 ms.
[2025-06-01 08:40:44] [INFO ] Added : 19 causal constraints over 5 iterations in 145 ms. Result :sat
Minimization took 73 ms.
[2025-06-01 08:40:44] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 08:40:44] [INFO ] [Real]Absence check using state equation in 86 ms returned sat
[2025-06-01 08:40:44] [INFO ] [Real]Added 30 Read/Feed constraints in 8 ms returned sat
[2025-06-01 08:40:44] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:40:44] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:40:44] [INFO ] [Nat]Absence check using state equation in 92 ms returned sat
[2025-06-01 08:40:44] [INFO ] [Nat]Added 30 Read/Feed constraints in 9 ms returned sat
[2025-06-01 08:40:44] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 21 ms.
[2025-06-01 08:40:44] [INFO ] Deduced a trap composed of 25 places in 142 ms of which 2 ms to minimize.
[2025-06-01 08:40:44] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 183 ms
[2025-06-01 08:40:44] [INFO ] Added : 9 causal constraints over 5 iterations in 328 ms. Result :sat
Minimization took 70 ms.
[2025-06-01 08:40:45] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:40:45] [INFO ] [Real]Absence check using state equation in 91 ms returned sat
[2025-06-01 08:40:45] [INFO ] [Real]Added 30 Read/Feed constraints in 13 ms returned sat
[2025-06-01 08:40:45] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:40:45] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 08:40:45] [INFO ] [Nat]Absence check using state equation in 90 ms returned sat
[2025-06-01 08:40:45] [INFO ] [Nat]Added 30 Read/Feed constraints in 13 ms returned sat
[2025-06-01 08:40:45] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 23 ms.
[2025-06-01 08:40:45] [INFO ] Added : 36 causal constraints over 10 iterations in 261 ms. Result :sat
Minimization took 90 ms.
[2025-06-01 08:40:45] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 08:40:45] [INFO ] [Real]Absence check using state equation in 88 ms returned sat
[2025-06-01 08:40:45] [INFO ] [Real]Added 30 Read/Feed constraints in 16 ms returned sat
[2025-06-01 08:40:45] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:40:46] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:40:46] [INFO ] [Nat]Absence check using state equation in 88 ms returned sat
[2025-06-01 08:40:46] [INFO ] [Nat]Added 30 Read/Feed constraints in 15 ms returned sat
[2025-06-01 08:40:46] [INFO ] Deduced a trap composed of 30 places in 119 ms of which 2 ms to minimize.
[2025-06-01 08:40:46] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 155 ms
[2025-06-01 08:40:46] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 23 ms.
[2025-06-01 08:40:46] [INFO ] Added : 6 causal constraints over 2 iterations in 91 ms. Result :sat
Minimization took 69 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[42212, 37771, 599, 377, 76, 74] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[42222, 38031, 599, 377, 76, 74] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Support contains 6 out of 112 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 112/112 places, 274/274 transitions.
Applied a total of 0 rules in 5 ms. Remains 112 /112 variables (removed 0) and now considering 274/274 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 5 ms. Remains : 112/112 places, 274/274 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 112/112 places, 274/274 transitions.
Applied a total of 0 rules in 5 ms. Remains 112 /112 variables (removed 0) and now considering 274/274 (removed 0) transitions.
[2025-06-01 08:41:51] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 08:41:51] [INFO ] Invariant cache hit.
[2025-06-01 08:41:51] [INFO ] Implicit Places using invariants in 121 ms returned []
[2025-06-01 08:41:51] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 08:41:51] [INFO ] Invariant cache hit.
[2025-06-01 08:41:51] [INFO ] State equation strengthened by 30 read => feed constraints.
[2025-06-01 08:41:51] [INFO ] Implicit Places using invariants and state equation in 240 ms returned []
Implicit Place search using SMT with State Equation took 399 ms to find 0 implicit places.
[2025-06-01 08:41:51] [INFO ] Redundant transitions in 1 ms returned []
Running 272 sub problems to find dead transitions.
[2025-06-01 08:41:51] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 08:41:51] [INFO ] Invariant cache hit.
[2025-06-01 08:41:51] [INFO ] State equation strengthened by 30 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/111 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/111 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 2 (OVERLAPS) 180/291 variables, 111/114 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/291 variables, 30/144 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/291 variables, 0/144 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 5 (OVERLAPS) 1/292 variables, 1/145 constraints. Problems are: Problem set: 0 solved, 272 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/292 variables, 0/145 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 7 (OVERLAPS) 0/292 variables, 0/145 constraints. Problems are: Problem set: 0 solved, 272 unsolved
No progress, stopping.
After SMT solving in domain Real declared 292/292 variables, and 145 constraints, problems are : Problem set: 0 solved, 272 unsolved in 14282 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 112/112 constraints, ReadFeed: 30/30 constraints, PredecessorRefiner: 272/272 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 272 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/111 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/111 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 2 (OVERLAPS) 180/291 variables, 111/114 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/291 variables, 30/144 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/291 variables, 32/176 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/291 variables, 0/176 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 6 (OVERLAPS) 1/292 variables, 1/177 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/292 variables, 240/417 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/292 variables, 0/417 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 9 (OVERLAPS) 0/292 variables, 0/417 constraints. Problems are: Problem set: 0 solved, 272 unsolved
No progress, stopping.
After SMT solving in domain Int declared 292/292 variables, and 417 constraints, problems are : Problem set: 0 solved, 272 unsolved in 20398 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 112/112 constraints, ReadFeed: 30/30 constraints, PredecessorRefiner: 272/272 constraints, Known Traps: 0/0 constraints]
After SMT, in 34953ms problems are : Problem set: 0 solved, 272 unsolved
Search for dead transitions found 0 dead transitions in 34957ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 35368 ms. Remains : 112/112 places, 274/274 transitions.
[2025-06-01 08:42:26] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
Found an invariant !
This invariant on transitions {25=1, 84=1, 138=1, 177=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {25=1, 84=1, 122=1, 172=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 46 ms. (steps per millisecond=217 ) properties (out of 6) seen :[13, 22, 10, 7, 3, 2]
Current structural bounds on expressions (after cover walk) : Max Seen:[42222, 38031, 599, 377, 76, 74] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 08:42:27] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 08:42:27] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[42222, 38031, 599, 377, 76, 74] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 1650 ms. (605 steps per ms)
BEST_FIRST walk for 6000006 steps (12 resets) in 7144 ms. (839 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[42222, 38031, 599, 377, 76, 83] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 08:42:35] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 08:42:35] [INFO ] Invariant cache hit.
[2025-06-01 08:42:35] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 08:42:35] [INFO ] [Real]Absence check using state equation in 58 ms returned sat
[2025-06-01 08:42:35] [INFO ] State equation strengthened by 30 read => feed constraints.
[2025-06-01 08:42:35] [INFO ] [Real]Added 30 Read/Feed constraints in 7 ms returned sat
[2025-06-01 08:42:35] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:42:36] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 08:42:36] [INFO ] [Nat]Absence check using state equation in 58 ms returned sat
[2025-06-01 08:42:36] [INFO ] [Nat]Added 30 Read/Feed constraints in 7 ms returned sat
[2025-06-01 08:42:36] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 13 ms.
[2025-06-01 08:42:36] [INFO ] Added : 7 causal constraints over 4 iterations in 71 ms. Result :sat
Minimization took 45 ms.
[2025-06-01 08:42:36] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:42:36] [INFO ] [Real]Absence check using state equation in 96 ms returned sat
[2025-06-01 08:42:36] [INFO ] [Real]Added 30 Read/Feed constraints in 12 ms returned sat
[2025-06-01 08:42:36] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:42:36] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 08:42:36] [INFO ] [Nat]Absence check using state equation in 92 ms returned sat
[2025-06-01 08:42:36] [INFO ] [Nat]Added 30 Read/Feed constraints in 14 ms returned sat
[2025-06-01 08:42:36] [INFO ] Deduced a trap composed of 33 places in 152 ms of which 3 ms to minimize.
[2025-06-01 08:42:36] [INFO ] Deduced a trap composed of 31 places in 137 ms of which 2 ms to minimize.
[2025-06-01 08:42:37] [INFO ] Deduced a trap composed of 22 places in 142 ms of which 2 ms to minimize.
[2025-06-01 08:42:37] [INFO ] Trap strengthening (SAT) tested/added 4/3 trap constraints in 495 ms
[2025-06-01 08:42:37] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 22 ms.
[2025-06-01 08:42:37] [INFO ] Added : 39 causal constraints over 8 iterations in 225 ms. Result :sat
Minimization took 93 ms.
[2025-06-01 08:42:37] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 08:42:37] [INFO ] [Real]Absence check using state equation in 95 ms returned sat
[2025-06-01 08:42:37] [INFO ] [Real]Added 30 Read/Feed constraints in 18 ms returned sat
[2025-06-01 08:42:37] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:42:37] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 08:42:37] [INFO ] [Nat]Absence check using state equation in 88 ms returned sat
[2025-06-01 08:42:37] [INFO ] [Nat]Added 30 Read/Feed constraints in 13 ms returned sat
[2025-06-01 08:42:37] [INFO ] Deduced a trap composed of 33 places in 120 ms of which 2 ms to minimize.
[2025-06-01 08:42:38] [INFO ] Deduced a trap composed of 31 places in 136 ms of which 13 ms to minimize.
[2025-06-01 08:42:38] [INFO ] Deduced a trap composed of 22 places in 136 ms of which 3 ms to minimize.
[2025-06-01 08:42:38] [INFO ] Deduced a trap composed of 24 places in 139 ms of which 3 ms to minimize.
[2025-06-01 08:42:38] [INFO ] Trap strengthening (SAT) tested/added 5/4 trap constraints in 596 ms
[2025-06-01 08:42:38] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 25 ms.
[2025-06-01 08:42:38] [INFO ] Added : 19 causal constraints over 5 iterations in 162 ms. Result :sat
Minimization took 81 ms.
[2025-06-01 08:42:38] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:42:38] [INFO ] [Real]Absence check using state equation in 101 ms returned sat
[2025-06-01 08:42:38] [INFO ] [Real]Added 30 Read/Feed constraints in 12 ms returned sat
[2025-06-01 08:42:38] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:42:38] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 08:42:39] [INFO ] [Nat]Absence check using state equation in 94 ms returned sat
[2025-06-01 08:42:39] [INFO ] [Nat]Added 30 Read/Feed constraints in 9 ms returned sat
[2025-06-01 08:42:39] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 35 ms.
[2025-06-01 08:42:39] [INFO ] Deduced a trap composed of 25 places in 141 ms of which 3 ms to minimize.
[2025-06-01 08:42:39] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 174 ms
[2025-06-01 08:42:39] [INFO ] Added : 9 causal constraints over 5 iterations in 334 ms. Result :sat
Minimization took 71 ms.
[2025-06-01 08:42:39] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:42:39] [INFO ] [Real]Absence check using state equation in 106 ms returned sat
[2025-06-01 08:42:39] [INFO ] [Real]Added 30 Read/Feed constraints in 13 ms returned sat
[2025-06-01 08:42:39] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:42:39] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 08:42:39] [INFO ] [Nat]Absence check using state equation in 95 ms returned sat
[2025-06-01 08:42:39] [INFO ] [Nat]Added 30 Read/Feed constraints in 12 ms returned sat
[2025-06-01 08:42:39] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 23 ms.
[2025-06-01 08:42:40] [INFO ] Added : 36 causal constraints over 10 iterations in 267 ms. Result :sat
Minimization took 90 ms.
[2025-06-01 08:42:40] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:42:40] [INFO ] [Real]Absence check using state equation in 95 ms returned sat
[2025-06-01 08:42:40] [INFO ] [Real]Added 30 Read/Feed constraints in 17 ms returned sat
[2025-06-01 08:42:40] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:42:40] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 08:42:40] [INFO ] [Nat]Absence check using state equation in 94 ms returned sat
[2025-06-01 08:42:40] [INFO ] [Nat]Added 30 Read/Feed constraints in 18 ms returned sat
[2025-06-01 08:42:40] [INFO ] Deduced a trap composed of 30 places in 137 ms of which 2 ms to minimize.
[2025-06-01 08:42:40] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 161 ms
[2025-06-01 08:42:40] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 22 ms.
[2025-06-01 08:42:40] [INFO ] Added : 6 causal constraints over 2 iterations in 89 ms. Result :sat
Minimization took 70 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[42222, 38031, 599, 377, 76, 83] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[42275, 38031, 599, 377, 76, 83] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Support contains 6 out of 112 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 112/112 places, 274/274 transitions.
Applied a total of 0 rules in 8 ms. Remains 112 /112 variables (removed 0) and now considering 274/274 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 8 ms. Remains : 112/112 places, 274/274 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 112/112 places, 274/274 transitions.
Applied a total of 0 rules in 7 ms. Remains 112 /112 variables (removed 0) and now considering 274/274 (removed 0) transitions.
[2025-06-01 08:43:45] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 08:43:45] [INFO ] Invariant cache hit.
[2025-06-01 08:43:45] [INFO ] Implicit Places using invariants in 174 ms returned []
[2025-06-01 08:43:45] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 08:43:45] [INFO ] Invariant cache hit.
[2025-06-01 08:43:46] [INFO ] State equation strengthened by 30 read => feed constraints.
[2025-06-01 08:43:46] [INFO ] Implicit Places using invariants and state equation in 350 ms returned []
Implicit Place search using SMT with State Equation took 539 ms to find 0 implicit places.
[2025-06-01 08:43:46] [INFO ] Redundant transitions in 1 ms returned []
Running 272 sub problems to find dead transitions.
[2025-06-01 08:43:46] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 08:43:46] [INFO ] Invariant cache hit.
[2025-06-01 08:43:46] [INFO ] State equation strengthened by 30 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/111 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/111 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 2 (OVERLAPS) 180/291 variables, 111/114 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/291 variables, 30/144 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/291 variables, 0/144 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 5 (OVERLAPS) 1/292 variables, 1/145 constraints. Problems are: Problem set: 0 solved, 272 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/292 variables, 0/145 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 7 (OVERLAPS) 0/292 variables, 0/145 constraints. Problems are: Problem set: 0 solved, 272 unsolved
No progress, stopping.
After SMT solving in domain Real declared 292/292 variables, and 145 constraints, problems are : Problem set: 0 solved, 272 unsolved in 12723 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 112/112 constraints, ReadFeed: 30/30 constraints, PredecessorRefiner: 272/272 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 272 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/111 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/111 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 2 (OVERLAPS) 180/291 variables, 111/114 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/291 variables, 30/144 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/291 variables, 32/176 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/291 variables, 0/176 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 6 (OVERLAPS) 1/292 variables, 1/177 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/292 variables, 240/417 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/292 variables, 0/417 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 9 (OVERLAPS) 0/292 variables, 0/417 constraints. Problems are: Problem set: 0 solved, 272 unsolved
No progress, stopping.
After SMT solving in domain Int declared 292/292 variables, and 417 constraints, problems are : Problem set: 0 solved, 272 unsolved in 19555 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 112/112 constraints, ReadFeed: 30/30 constraints, PredecessorRefiner: 272/272 constraints, Known Traps: 0/0 constraints]
After SMT, in 32704ms problems are : Problem set: 0 solved, 272 unsolved
Search for dead transitions found 0 dead transitions in 32709ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 33265 ms. Remains : 112/112 places, 274/274 transitions.
[2025-06-01 08:44:18] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
Found an invariant !
This invariant on transitions {25=1, 84=1, 138=1, 177=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {25=1, 84=1, 122=1, 172=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 68 ms. (steps per millisecond=147 ) properties (out of 6) seen :[9, 18, 13, 6, 3, 3]
Current structural bounds on expressions (after cover walk) : Max Seen:[42275, 38031, 599, 377, 76, 83] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 08:44:19] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 08:44:19] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[42275, 38031, 599, 377, 76, 83] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 1836 ms. (544 steps per ms)
BEST_FIRST walk for 6000006 steps (12 resets) in 6897 ms. (869 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[42275, 38031, 599, 377, 76, 83] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 08:44:27] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 08:44:27] [INFO ] Invariant cache hit.
[2025-06-01 08:44:27] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:44:27] [INFO ] [Real]Absence check using state equation in 61 ms returned sat
[2025-06-01 08:44:27] [INFO ] State equation strengthened by 30 read => feed constraints.
[2025-06-01 08:44:27] [INFO ] [Real]Added 30 Read/Feed constraints in 7 ms returned sat
[2025-06-01 08:44:27] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:44:28] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 08:44:28] [INFO ] [Nat]Absence check using state equation in 55 ms returned sat
[2025-06-01 08:44:28] [INFO ] [Nat]Added 30 Read/Feed constraints in 6 ms returned sat
[2025-06-01 08:44:28] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 14 ms.
[2025-06-01 08:44:28] [INFO ] Added : 7 causal constraints over 4 iterations in 73 ms. Result :sat
Minimization took 43 ms.
[2025-06-01 08:44:28] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 08:44:28] [INFO ] [Real]Absence check using state equation in 72 ms returned sat
[2025-06-01 08:44:28] [INFO ] [Real]Added 30 Read/Feed constraints in 9 ms returned sat
[2025-06-01 08:44:28] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:44:28] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 08:44:28] [INFO ] [Nat]Absence check using state equation in 93 ms returned sat
[2025-06-01 08:44:28] [INFO ] [Nat]Added 30 Read/Feed constraints in 14 ms returned sat
[2025-06-01 08:44:28] [INFO ] Deduced a trap composed of 33 places in 128 ms of which 2 ms to minimize.
[2025-06-01 08:44:28] [INFO ] Deduced a trap composed of 31 places in 90 ms of which 2 ms to minimize.
[2025-06-01 08:44:28] [INFO ] Deduced a trap composed of 22 places in 87 ms of which 2 ms to minimize.
[2025-06-01 08:44:28] [INFO ] Trap strengthening (SAT) tested/added 4/3 trap constraints in 352 ms
[2025-06-01 08:44:28] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 22 ms.
[2025-06-01 08:44:29] [INFO ] Added : 39 causal constraints over 8 iterations in 224 ms. Result :sat
Minimization took 90 ms.
[2025-06-01 08:44:29] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:44:29] [INFO ] [Real]Absence check using state equation in 89 ms returned sat
[2025-06-01 08:44:29] [INFO ] [Real]Added 30 Read/Feed constraints in 13 ms returned sat
[2025-06-01 08:44:29] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:44:29] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:44:29] [INFO ] [Nat]Absence check using state equation in 76 ms returned sat
[2025-06-01 08:44:29] [INFO ] [Nat]Added 30 Read/Feed constraints in 9 ms returned sat
[2025-06-01 08:44:29] [INFO ] Deduced a trap composed of 33 places in 156 ms of which 2 ms to minimize.
[2025-06-01 08:44:29] [INFO ] Deduced a trap composed of 31 places in 140 ms of which 3 ms to minimize.
[2025-06-01 08:44:29] [INFO ] Deduced a trap composed of 22 places in 143 ms of which 3 ms to minimize.
[2025-06-01 08:44:30] [INFO ] Deduced a trap composed of 24 places in 143 ms of which 2 ms to minimize.
[2025-06-01 08:44:30] [INFO ] Trap strengthening (SAT) tested/added 5/4 trap constraints in 625 ms
[2025-06-01 08:44:30] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 19 ms.
[2025-06-01 08:44:30] [INFO ] Added : 19 causal constraints over 5 iterations in 118 ms. Result :sat
Minimization took 50 ms.
[2025-06-01 08:44:30] [INFO ] [Real]Absence check using 3 positive place invariants in 15 ms returned sat
[2025-06-01 08:44:30] [INFO ] [Real]Absence check using state equation in 54 ms returned sat
[2025-06-01 08:44:30] [INFO ] [Real]Added 30 Read/Feed constraints in 5 ms returned sat
[2025-06-01 08:44:30] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:44:30] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:44:30] [INFO ] [Nat]Absence check using state equation in 74 ms returned sat
[2025-06-01 08:44:30] [INFO ] [Nat]Added 30 Read/Feed constraints in 7 ms returned sat
[2025-06-01 08:44:30] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 17 ms.
[2025-06-01 08:44:30] [INFO ] Deduced a trap composed of 25 places in 145 ms of which 2 ms to minimize.
[2025-06-01 08:44:30] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 167 ms
[2025-06-01 08:44:30] [INFO ] Added : 9 causal constraints over 5 iterations in 279 ms. Result :sat
Minimization took 45 ms.
[2025-06-01 08:44:30] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:44:31] [INFO ] [Real]Absence check using state equation in 96 ms returned sat
[2025-06-01 08:44:31] [INFO ] [Real]Added 30 Read/Feed constraints in 13 ms returned sat
[2025-06-01 08:44:31] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:44:31] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:44:31] [INFO ] [Nat]Absence check using state equation in 74 ms returned sat
[2025-06-01 08:44:31] [INFO ] [Nat]Added 30 Read/Feed constraints in 9 ms returned sat
[2025-06-01 08:44:31] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 20 ms.
[2025-06-01 08:44:31] [INFO ] Added : 36 causal constraints over 10 iterations in 196 ms. Result :sat
Minimization took 58 ms.
[2025-06-01 08:44:31] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:44:31] [INFO ] [Real]Absence check using state equation in 89 ms returned sat
[2025-06-01 08:44:31] [INFO ] [Real]Added 30 Read/Feed constraints in 17 ms returned sat
[2025-06-01 08:44:31] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:44:31] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:44:31] [INFO ] [Nat]Absence check using state equation in 80 ms returned sat
[2025-06-01 08:44:31] [INFO ] [Nat]Added 30 Read/Feed constraints in 10 ms returned sat
[2025-06-01 08:44:32] [INFO ] Deduced a trap composed of 30 places in 161 ms of which 2 ms to minimize.
[2025-06-01 08:44:32] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 179 ms
[2025-06-01 08:44:32] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 17 ms.
[2025-06-01 08:44:32] [INFO ] Added : 6 causal constraints over 2 iterations in 67 ms. Result :sat
Minimization took 44 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[42275, 38031, 599, 377, 76, 83] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[42280, 38353, 599, 377, 76, 83] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Support contains 6 out of 112 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 112/112 places, 274/274 transitions.
Applied a total of 0 rules in 5 ms. Remains 112 /112 variables (removed 0) and now considering 274/274 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 5 ms. Remains : 112/112 places, 274/274 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 112/112 places, 274/274 transitions.
Applied a total of 0 rules in 5 ms. Remains 112 /112 variables (removed 0) and now considering 274/274 (removed 0) transitions.
[2025-06-01 08:45:36] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 08:45:36] [INFO ] Invariant cache hit.
[2025-06-01 08:45:36] [INFO ] Implicit Places using invariants in 124 ms returned []
[2025-06-01 08:45:36] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 08:45:36] [INFO ] Invariant cache hit.
[2025-06-01 08:45:37] [INFO ] State equation strengthened by 30 read => feed constraints.
[2025-06-01 08:45:37] [INFO ] Implicit Places using invariants and state equation in 222 ms returned []
Implicit Place search using SMT with State Equation took 373 ms to find 0 implicit places.
[2025-06-01 08:45:37] [INFO ] Redundant transitions in 1 ms returned []
Running 272 sub problems to find dead transitions.
[2025-06-01 08:45:37] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 08:45:37] [INFO ] Invariant cache hit.
[2025-06-01 08:45:37] [INFO ] State equation strengthened by 30 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/111 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/111 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 2 (OVERLAPS) 180/291 variables, 111/114 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/291 variables, 30/144 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/291 variables, 0/144 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 5 (OVERLAPS) 1/292 variables, 1/145 constraints. Problems are: Problem set: 0 solved, 272 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/292 variables, 0/145 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 7 (OVERLAPS) 0/292 variables, 0/145 constraints. Problems are: Problem set: 0 solved, 272 unsolved
No progress, stopping.
After SMT solving in domain Real declared 292/292 variables, and 145 constraints, problems are : Problem set: 0 solved, 272 unsolved in 11623 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 112/112 constraints, ReadFeed: 30/30 constraints, PredecessorRefiner: 272/272 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 272 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/111 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/111 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 2 (OVERLAPS) 180/291 variables, 111/114 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/291 variables, 30/144 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/291 variables, 32/176 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/291 variables, 0/176 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 6 (OVERLAPS) 1/292 variables, 1/177 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/292 variables, 240/417 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/292 variables, 0/417 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 9 (OVERLAPS) 0/292 variables, 0/417 constraints. Problems are: Problem set: 0 solved, 272 unsolved
No progress, stopping.
After SMT solving in domain Int declared 292/292 variables, and 417 constraints, problems are : Problem set: 0 solved, 272 unsolved in 18890 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 112/112 constraints, ReadFeed: 30/30 constraints, PredecessorRefiner: 272/272 constraints, Known Traps: 0/0 constraints]
After SMT, in 30789ms problems are : Problem set: 0 solved, 272 unsolved
Search for dead transitions found 0 dead transitions in 30794ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 31179 ms. Remains : 112/112 places, 274/274 transitions.
[2025-06-01 08:46:08] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
Found an invariant !
This invariant on transitions {25=1, 84=1, 138=1, 177=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {25=1, 84=1, 122=1, 172=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 6) seen :[7, 16, 6, 11, 3, 2]
Current structural bounds on expressions (after cover walk) : Max Seen:[42280, 38353, 599, 377, 76, 83] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 08:46:08] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 08:46:08] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[42280, 38353, 599, 377, 76, 83] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 1570 ms. (636 steps per ms)
BEST_FIRST walk for 6000006 steps (12 resets) in 7598 ms. (789 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[42280, 38353, 599, 377, 76, 83] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 08:46:17] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 08:46:17] [INFO ] Invariant cache hit.
[2025-06-01 08:46:17] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:46:17] [INFO ] [Real]Absence check using state equation in 57 ms returned sat
[2025-06-01 08:46:17] [INFO ] State equation strengthened by 30 read => feed constraints.
[2025-06-01 08:46:17] [INFO ] [Real]Added 30 Read/Feed constraints in 7 ms returned sat
[2025-06-01 08:46:17] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:46:17] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 08:46:17] [INFO ] [Nat]Absence check using state equation in 55 ms returned sat
[2025-06-01 08:46:17] [INFO ] [Nat]Added 30 Read/Feed constraints in 6 ms returned sat
[2025-06-01 08:46:17] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 14 ms.
[2025-06-01 08:46:17] [INFO ] Added : 7 causal constraints over 4 iterations in 73 ms. Result :sat
Minimization took 44 ms.
[2025-06-01 08:46:17] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 08:46:17] [INFO ] [Real]Absence check using state equation in 95 ms returned sat
[2025-06-01 08:46:17] [INFO ] [Real]Added 30 Read/Feed constraints in 12 ms returned sat
[2025-06-01 08:46:17] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:46:17] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 08:46:18] [INFO ] [Nat]Absence check using state equation in 91 ms returned sat
[2025-06-01 08:46:18] [INFO ] [Nat]Added 30 Read/Feed constraints in 13 ms returned sat
[2025-06-01 08:46:18] [INFO ] Deduced a trap composed of 33 places in 121 ms of which 3 ms to minimize.
[2025-06-01 08:46:18] [INFO ] Deduced a trap composed of 31 places in 149 ms of which 3 ms to minimize.
[2025-06-01 08:46:18] [INFO ] Deduced a trap composed of 22 places in 152 ms of which 2 ms to minimize.
[2025-06-01 08:46:18] [INFO ] Trap strengthening (SAT) tested/added 4/3 trap constraints in 471 ms
[2025-06-01 08:46:18] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 26 ms.
[2025-06-01 08:46:18] [INFO ] Added : 39 causal constraints over 8 iterations in 230 ms. Result :sat
Minimization took 92 ms.
[2025-06-01 08:46:18] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:46:19] [INFO ] [Real]Absence check using state equation in 92 ms returned sat
[2025-06-01 08:46:19] [INFO ] [Real]Added 30 Read/Feed constraints in 12 ms returned sat
[2025-06-01 08:46:19] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:46:19] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:46:19] [INFO ] [Nat]Absence check using state equation in 92 ms returned sat
[2025-06-01 08:46:19] [INFO ] [Nat]Added 30 Read/Feed constraints in 12 ms returned sat
[2025-06-01 08:46:19] [INFO ] Deduced a trap composed of 33 places in 121 ms of which 2 ms to minimize.
[2025-06-01 08:46:19] [INFO ] Deduced a trap composed of 31 places in 145 ms of which 2 ms to minimize.
[2025-06-01 08:46:19] [INFO ] Deduced a trap composed of 22 places in 131 ms of which 3 ms to minimize.
[2025-06-01 08:46:19] [INFO ] Deduced a trap composed of 24 places in 144 ms of which 2 ms to minimize.
[2025-06-01 08:46:19] [INFO ] Trap strengthening (SAT) tested/added 5/4 trap constraints in 629 ms
[2025-06-01 08:46:19] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 25 ms.
[2025-06-01 08:46:20] [INFO ] Added : 19 causal constraints over 5 iterations in 159 ms. Result :sat
Minimization took 79 ms.
[2025-06-01 08:46:20] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:46:20] [INFO ] [Real]Absence check using state equation in 90 ms returned sat
[2025-06-01 08:46:20] [INFO ] [Real]Added 30 Read/Feed constraints in 9 ms returned sat
[2025-06-01 08:46:20] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:46:20] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 08:46:20] [INFO ] [Nat]Absence check using state equation in 97 ms returned sat
[2025-06-01 08:46:20] [INFO ] [Nat]Added 30 Read/Feed constraints in 10 ms returned sat
[2025-06-01 08:46:20] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 29 ms.
[2025-06-01 08:46:20] [INFO ] Deduced a trap composed of 25 places in 147 ms of which 2 ms to minimize.
[2025-06-01 08:46:20] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 176 ms
[2025-06-01 08:46:20] [INFO ] Added : 9 causal constraints over 5 iterations in 330 ms. Result :sat
Minimization took 71 ms.
[2025-06-01 08:46:20] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 08:46:21] [INFO ] [Real]Absence check using state equation in 89 ms returned sat
[2025-06-01 08:46:21] [INFO ] [Real]Added 30 Read/Feed constraints in 14 ms returned sat
[2025-06-01 08:46:21] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:46:21] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 08:46:21] [INFO ] [Nat]Absence check using state equation in 93 ms returned sat
[2025-06-01 08:46:21] [INFO ] [Nat]Added 30 Read/Feed constraints in 11 ms returned sat
[2025-06-01 08:46:21] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 24 ms.
[2025-06-01 08:46:21] [INFO ] Added : 36 causal constraints over 10 iterations in 262 ms. Result :sat
Minimization took 94 ms.
[2025-06-01 08:46:21] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:46:21] [INFO ] [Real]Absence check using state equation in 90 ms returned sat
[2025-06-01 08:46:21] [INFO ] [Real]Added 30 Read/Feed constraints in 15 ms returned sat
[2025-06-01 08:46:21] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:46:21] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:46:22] [INFO ] [Nat]Absence check using state equation in 90 ms returned sat
[2025-06-01 08:46:22] [INFO ] [Nat]Added 30 Read/Feed constraints in 15 ms returned sat
[2025-06-01 08:46:22] [INFO ] Deduced a trap composed of 30 places in 118 ms of which 3 ms to minimize.
[2025-06-01 08:46:22] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 148 ms
[2025-06-01 08:46:22] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 34 ms.
[2025-06-01 08:46:22] [INFO ] Added : 6 causal constraints over 2 iterations in 101 ms. Result :sat
Minimization took 70 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[42280, 38353, 599, 377, 76, 83] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[42303, 38353, 599, 377, 76, 83] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Support contains 6 out of 112 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 112/112 places, 274/274 transitions.
Applied a total of 0 rules in 5 ms. Remains 112 /112 variables (removed 0) and now considering 274/274 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 5 ms. Remains : 112/112 places, 274/274 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 112/112 places, 274/274 transitions.
Applied a total of 0 rules in 4 ms. Remains 112 /112 variables (removed 0) and now considering 274/274 (removed 0) transitions.
[2025-06-01 08:47:27] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 08:47:27] [INFO ] Invariant cache hit.
[2025-06-01 08:47:27] [INFO ] Implicit Places using invariants in 124 ms returned []
[2025-06-01 08:47:27] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 08:47:27] [INFO ] Invariant cache hit.
[2025-06-01 08:47:27] [INFO ] State equation strengthened by 30 read => feed constraints.
[2025-06-01 08:47:27] [INFO ] Implicit Places using invariants and state equation in 228 ms returned []
Implicit Place search using SMT with State Equation took 375 ms to find 0 implicit places.
[2025-06-01 08:47:27] [INFO ] Redundant transitions in 1 ms returned []
Running 272 sub problems to find dead transitions.
[2025-06-01 08:47:27] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 08:47:27] [INFO ] Invariant cache hit.
[2025-06-01 08:47:27] [INFO ] State equation strengthened by 30 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/111 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/111 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 2 (OVERLAPS) 180/291 variables, 111/114 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/291 variables, 30/144 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/291 variables, 0/144 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 5 (OVERLAPS) 1/292 variables, 1/145 constraints. Problems are: Problem set: 0 solved, 272 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/292 variables, 0/145 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 7 (OVERLAPS) 0/292 variables, 0/145 constraints. Problems are: Problem set: 0 solved, 272 unsolved
No progress, stopping.
After SMT solving in domain Real declared 292/292 variables, and 145 constraints, problems are : Problem set: 0 solved, 272 unsolved in 13246 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 112/112 constraints, ReadFeed: 30/30 constraints, PredecessorRefiner: 272/272 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 272 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/111 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/111 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 2 (OVERLAPS) 180/291 variables, 111/114 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/291 variables, 30/144 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/291 variables, 32/176 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/291 variables, 0/176 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 6 (OVERLAPS) 1/292 variables, 1/177 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/292 variables, 240/417 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/292 variables, 0/417 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 9 (OVERLAPS) 0/292 variables, 0/417 constraints. Problems are: Problem set: 0 solved, 272 unsolved
No progress, stopping.
After SMT solving in domain Int declared 292/292 variables, and 417 constraints, problems are : Problem set: 0 solved, 272 unsolved in 19475 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 112/112 constraints, ReadFeed: 30/30 constraints, PredecessorRefiner: 272/272 constraints, Known Traps: 0/0 constraints]
After SMT, in 33003ms problems are : Problem set: 0 solved, 272 unsolved
Search for dead transitions found 0 dead transitions in 33007ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 33401 ms. Remains : 112/112 places, 274/274 transitions.
[2025-06-01 08:48:00] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
Found an invariant !
This invariant on transitions {25=1, 84=1, 138=1, 177=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {25=1, 84=1, 122=1, 172=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 6) seen :[20, 24, 6, 6, 3, 2]
Current structural bounds on expressions (after cover walk) : Max Seen:[42303, 38353, 599, 377, 76, 83] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 08:48:00] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 08:48:00] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[42303, 38353, 599, 377, 76, 83] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 1711 ms. (584 steps per ms)
BEST_FIRST walk for 6000006 steps (12 resets) in 6827 ms. (878 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[42303, 38353, 599, 377, 76, 83] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 08:48:09] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 08:48:09] [INFO ] Invariant cache hit.
[2025-06-01 08:48:09] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:48:09] [INFO ] [Real]Absence check using state equation in 62 ms returned sat
[2025-06-01 08:48:09] [INFO ] State equation strengthened by 30 read => feed constraints.
[2025-06-01 08:48:09] [INFO ] [Real]Added 30 Read/Feed constraints in 8 ms returned sat
[2025-06-01 08:48:09] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:48:09] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 08:48:09] [INFO ] [Nat]Absence check using state equation in 60 ms returned sat
[2025-06-01 08:48:09] [INFO ] [Nat]Added 30 Read/Feed constraints in 7 ms returned sat
[2025-06-01 08:48:09] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 13 ms.
[2025-06-01 08:48:09] [INFO ] Added : 7 causal constraints over 4 iterations in 72 ms. Result :sat
Minimization took 42 ms.
[2025-06-01 08:48:09] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 08:48:09] [INFO ] [Real]Absence check using state equation in 92 ms returned sat
[2025-06-01 08:48:09] [INFO ] [Real]Added 30 Read/Feed constraints in 14 ms returned sat
[2025-06-01 08:48:09] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:48:09] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 08:48:10] [INFO ] [Nat]Absence check using state equation in 81 ms returned sat
[2025-06-01 08:48:10] [INFO ] [Nat]Added 30 Read/Feed constraints in 12 ms returned sat
[2025-06-01 08:48:10] [INFO ] Deduced a trap composed of 33 places in 143 ms of which 3 ms to minimize.
[2025-06-01 08:48:10] [INFO ] Deduced a trap composed of 31 places in 159 ms of which 2 ms to minimize.
[2025-06-01 08:48:10] [INFO ] Deduced a trap composed of 22 places in 125 ms of which 2 ms to minimize.
[2025-06-01 08:48:10] [INFO ] Trap strengthening (SAT) tested/added 4/3 trap constraints in 494 ms
[2025-06-01 08:48:10] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 42 ms.
[2025-06-01 08:48:10] [INFO ] Added : 39 causal constraints over 8 iterations in 253 ms. Result :sat
Minimization took 89 ms.
[2025-06-01 08:48:10] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:48:11] [INFO ] [Real]Absence check using state equation in 97 ms returned sat
[2025-06-01 08:48:11] [INFO ] [Real]Added 30 Read/Feed constraints in 13 ms returned sat
[2025-06-01 08:48:11] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:48:11] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:48:11] [INFO ] [Nat]Absence check using state equation in 100 ms returned sat
[2025-06-01 08:48:11] [INFO ] [Nat]Added 30 Read/Feed constraints in 13 ms returned sat
[2025-06-01 08:48:11] [INFO ] Deduced a trap composed of 33 places in 120 ms of which 3 ms to minimize.
[2025-06-01 08:48:11] [INFO ] Deduced a trap composed of 31 places in 140 ms of which 2 ms to minimize.
[2025-06-01 08:48:11] [INFO ] Deduced a trap composed of 22 places in 144 ms of which 3 ms to minimize.
[2025-06-01 08:48:11] [INFO ] Deduced a trap composed of 24 places in 147 ms of which 3 ms to minimize.
[2025-06-01 08:48:11] [INFO ] Trap strengthening (SAT) tested/added 5/4 trap constraints in 623 ms
[2025-06-01 08:48:11] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 22 ms.
[2025-06-01 08:48:12] [INFO ] Added : 19 causal constraints over 5 iterations in 157 ms. Result :sat
Minimization took 84 ms.
[2025-06-01 08:48:12] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:48:12] [INFO ] [Real]Absence check using state equation in 95 ms returned sat
[2025-06-01 08:48:12] [INFO ] [Real]Added 30 Read/Feed constraints in 9 ms returned sat
[2025-06-01 08:48:12] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:48:12] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:48:12] [INFO ] [Nat]Absence check using state equation in 100 ms returned sat
[2025-06-01 08:48:12] [INFO ] [Nat]Added 30 Read/Feed constraints in 9 ms returned sat
[2025-06-01 08:48:12] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 51 ms.
[2025-06-01 08:48:12] [INFO ] Deduced a trap composed of 25 places in 137 ms of which 2 ms to minimize.
[2025-06-01 08:48:12] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 177 ms
[2025-06-01 08:48:12] [INFO ] Added : 9 causal constraints over 5 iterations in 355 ms. Result :sat
Minimization took 73 ms.
[2025-06-01 08:48:13] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:48:13] [INFO ] [Real]Absence check using state equation in 93 ms returned sat
[2025-06-01 08:48:13] [INFO ] [Real]Added 30 Read/Feed constraints in 12 ms returned sat
[2025-06-01 08:48:13] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:48:13] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 08:48:13] [INFO ] [Nat]Absence check using state equation in 95 ms returned sat
[2025-06-01 08:48:13] [INFO ] [Nat]Added 30 Read/Feed constraints in 12 ms returned sat
[2025-06-01 08:48:13] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 28 ms.
[2025-06-01 08:48:13] [INFO ] Added : 36 causal constraints over 10 iterations in 268 ms. Result :sat
Minimization took 93 ms.
[2025-06-01 08:48:13] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:48:13] [INFO ] [Real]Absence check using state equation in 106 ms returned sat
[2025-06-01 08:48:13] [INFO ] [Real]Added 30 Read/Feed constraints in 17 ms returned sat
[2025-06-01 08:48:13] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:48:14] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 08:48:14] [INFO ] [Nat]Absence check using state equation in 92 ms returned sat
[2025-06-01 08:48:14] [INFO ] [Nat]Added 30 Read/Feed constraints in 16 ms returned sat
[2025-06-01 08:48:14] [INFO ] Deduced a trap composed of 30 places in 121 ms of which 3 ms to minimize.
[2025-06-01 08:48:14] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 155 ms
[2025-06-01 08:48:14] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 23 ms.
[2025-06-01 08:48:14] [INFO ] Added : 6 causal constraints over 2 iterations in 91 ms. Result :sat
Minimization took 72 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[42303, 38353, 599, 377, 76, 83] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[42313, 38353, 599, 377, 76, 83] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Support contains 6 out of 112 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 112/112 places, 274/274 transitions.
Applied a total of 0 rules in 5 ms. Remains 112 /112 variables (removed 0) and now considering 274/274 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 5 ms. Remains : 112/112 places, 274/274 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 112/112 places, 274/274 transitions.
Applied a total of 0 rules in 5 ms. Remains 112 /112 variables (removed 0) and now considering 274/274 (removed 0) transitions.
[2025-06-01 08:49:19] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 08:49:19] [INFO ] Invariant cache hit.
[2025-06-01 08:49:19] [INFO ] Implicit Places using invariants in 212 ms returned []
[2025-06-01 08:49:19] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 08:49:19] [INFO ] Invariant cache hit.
[2025-06-01 08:49:19] [INFO ] State equation strengthened by 30 read => feed constraints.
[2025-06-01 08:49:19] [INFO ] Implicit Places using invariants and state equation in 232 ms returned []
Implicit Place search using SMT with State Equation took 465 ms to find 0 implicit places.
[2025-06-01 08:49:19] [INFO ] Redundant transitions in 1 ms returned []
Running 272 sub problems to find dead transitions.
[2025-06-01 08:49:19] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 08:49:19] [INFO ] Invariant cache hit.
[2025-06-01 08:49:19] [INFO ] State equation strengthened by 30 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/111 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/111 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 2 (OVERLAPS) 180/291 variables, 111/114 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/291 variables, 30/144 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/291 variables, 0/144 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 5 (OVERLAPS) 1/292 variables, 1/145 constraints. Problems are: Problem set: 0 solved, 272 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/292 variables, 0/145 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 7 (OVERLAPS) 0/292 variables, 0/145 constraints. Problems are: Problem set: 0 solved, 272 unsolved
No progress, stopping.
After SMT solving in domain Real declared 292/292 variables, and 145 constraints, problems are : Problem set: 0 solved, 272 unsolved in 12839 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 112/112 constraints, ReadFeed: 30/30 constraints, PredecessorRefiner: 272/272 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 272 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/111 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/111 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 2 (OVERLAPS) 180/291 variables, 111/114 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/291 variables, 30/144 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/291 variables, 32/176 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/291 variables, 0/176 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 6 (OVERLAPS) 1/292 variables, 1/177 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/292 variables, 240/417 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/292 variables, 0/417 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 9 (OVERLAPS) 0/292 variables, 0/417 constraints. Problems are: Problem set: 0 solved, 272 unsolved
No progress, stopping.
After SMT solving in domain Int declared 292/292 variables, and 417 constraints, problems are : Problem set: 0 solved, 272 unsolved in 18725 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 112/112 constraints, ReadFeed: 30/30 constraints, PredecessorRefiner: 272/272 constraints, Known Traps: 0/0 constraints]
After SMT, in 31792ms problems are : Problem set: 0 solved, 272 unsolved
Search for dead transitions found 0 dead transitions in 31796ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 32276 ms. Remains : 112/112 places, 274/274 transitions.
[2025-06-01 08:49:51] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
Found an invariant !
This invariant on transitions {25=1, 84=1, 138=1, 177=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {25=1, 84=1, 122=1, 172=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 49 ms. (steps per millisecond=204 ) properties (out of 6) seen :[11, 15, 5, 9, 4, 2]
Current structural bounds on expressions (after cover walk) : Max Seen:[42313, 38353, 599, 377, 76, 83] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 08:49:51] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 08:49:51] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[42313, 38353, 599, 377, 76, 83] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 1837 ms. (544 steps per ms)
BEST_FIRST walk for 6000006 steps (12 resets) in 6893 ms. (870 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[42313, 38353, 599, 377, 76, 83] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 08:50:00] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 08:50:00] [INFO ] Invariant cache hit.
[2025-06-01 08:50:00] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:50:00] [INFO ] [Real]Absence check using state equation in 53 ms returned sat
[2025-06-01 08:50:00] [INFO ] State equation strengthened by 30 read => feed constraints.
[2025-06-01 08:50:00] [INFO ] [Real]Added 30 Read/Feed constraints in 12 ms returned sat
[2025-06-01 08:50:00] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:50:00] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:50:00] [INFO ] [Nat]Absence check using state equation in 56 ms returned sat
[2025-06-01 08:50:00] [INFO ] [Nat]Added 30 Read/Feed constraints in 6 ms returned sat
[2025-06-01 08:50:00] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 16 ms.
[2025-06-01 08:50:00] [INFO ] Added : 7 causal constraints over 4 iterations in 83 ms. Result :sat
Minimization took 48 ms.
[2025-06-01 08:50:00] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 08:50:01] [INFO ] [Real]Absence check using state equation in 60 ms returned sat
[2025-06-01 08:50:01] [INFO ] [Real]Added 30 Read/Feed constraints in 8 ms returned sat
[2025-06-01 08:50:01] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:50:01] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 08:50:01] [INFO ] [Nat]Absence check using state equation in 72 ms returned sat
[2025-06-01 08:50:01] [INFO ] [Nat]Added 30 Read/Feed constraints in 9 ms returned sat
[2025-06-01 08:50:01] [INFO ] Deduced a trap composed of 33 places in 77 ms of which 2 ms to minimize.
[2025-06-01 08:50:01] [INFO ] Deduced a trap composed of 31 places in 107 ms of which 2 ms to minimize.
[2025-06-01 08:50:01] [INFO ] Deduced a trap composed of 22 places in 110 ms of which 2 ms to minimize.
[2025-06-01 08:50:01] [INFO ] Trap strengthening (SAT) tested/added 4/3 trap constraints in 336 ms
[2025-06-01 08:50:01] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 17 ms.
[2025-06-01 08:50:01] [INFO ] Added : 39 causal constraints over 8 iterations in 176 ms. Result :sat
Minimization took 71 ms.
[2025-06-01 08:50:01] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:50:01] [INFO ] [Real]Absence check using state equation in 77 ms returned sat
[2025-06-01 08:50:01] [INFO ] [Real]Added 30 Read/Feed constraints in 10 ms returned sat
[2025-06-01 08:50:01] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:50:01] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 08:50:02] [INFO ] [Nat]Absence check using state equation in 68 ms returned sat
[2025-06-01 08:50:02] [INFO ] [Nat]Added 30 Read/Feed constraints in 9 ms returned sat
[2025-06-01 08:50:02] [INFO ] Deduced a trap composed of 33 places in 128 ms of which 2 ms to minimize.
[2025-06-01 08:50:02] [INFO ] Deduced a trap composed of 31 places in 128 ms of which 2 ms to minimize.
[2025-06-01 08:50:02] [INFO ] Deduced a trap composed of 22 places in 130 ms of which 2 ms to minimize.
[2025-06-01 08:50:02] [INFO ] Deduced a trap composed of 24 places in 128 ms of which 2 ms to minimize.
[2025-06-01 08:50:02] [INFO ] Trap strengthening (SAT) tested/added 5/4 trap constraints in 580 ms
[2025-06-01 08:50:02] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 19 ms.
[2025-06-01 08:50:02] [INFO ] Added : 19 causal constraints over 5 iterations in 153 ms. Result :sat
Minimization took 78 ms.
[2025-06-01 08:50:02] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:50:03] [INFO ] [Real]Absence check using state equation in 86 ms returned sat
[2025-06-01 08:50:03] [INFO ] [Real]Added 30 Read/Feed constraints in 13 ms returned sat
[2025-06-01 08:50:03] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:50:03] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:50:03] [INFO ] [Nat]Absence check using state equation in 89 ms returned sat
[2025-06-01 08:50:03] [INFO ] [Nat]Added 30 Read/Feed constraints in 9 ms returned sat
[2025-06-01 08:50:03] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 26 ms.
[2025-06-01 08:50:03] [INFO ] Deduced a trap composed of 25 places in 129 ms of which 2 ms to minimize.
[2025-06-01 08:50:03] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 163 ms
[2025-06-01 08:50:03] [INFO ] Added : 9 causal constraints over 5 iterations in 334 ms. Result :sat
Minimization took 89 ms.
[2025-06-01 08:50:03] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:50:03] [INFO ] [Real]Absence check using state equation in 79 ms returned sat
[2025-06-01 08:50:03] [INFO ] [Real]Added 30 Read/Feed constraints in 11 ms returned sat
[2025-06-01 08:50:03] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:50:03] [INFO ] [Nat]Absence check using 3 positive place invariants in 9 ms returned sat
[2025-06-01 08:50:04] [INFO ] [Nat]Absence check using state equation in 124 ms returned sat
[2025-06-01 08:50:04] [INFO ] [Nat]Added 30 Read/Feed constraints in 13 ms returned sat
[2025-06-01 08:50:04] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 23 ms.
[2025-06-01 08:50:04] [INFO ] Added : 36 causal constraints over 10 iterations in 264 ms. Result :sat
Minimization took 90 ms.
[2025-06-01 08:50:04] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:50:04] [INFO ] [Real]Absence check using state equation in 100 ms returned sat
[2025-06-01 08:50:04] [INFO ] [Real]Added 30 Read/Feed constraints in 17 ms returned sat
[2025-06-01 08:50:04] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:50:04] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:50:04] [INFO ] [Nat]Absence check using state equation in 87 ms returned sat
[2025-06-01 08:50:04] [INFO ] [Nat]Added 30 Read/Feed constraints in 14 ms returned sat
[2025-06-01 08:50:05] [INFO ] Deduced a trap composed of 30 places in 135 ms of which 2 ms to minimize.
[2025-06-01 08:50:05] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 165 ms
[2025-06-01 08:50:05] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 27 ms.
[2025-06-01 08:50:05] [INFO ] Added : 6 causal constraints over 2 iterations in 93 ms. Result :sat
Minimization took 70 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[42313, 38353, 599, 377, 76, 83] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[42317, 38353, 599, 377, 76, 83] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Support contains 6 out of 112 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 112/112 places, 274/274 transitions.
Applied a total of 0 rules in 5 ms. Remains 112 /112 variables (removed 0) and now considering 274/274 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 5 ms. Remains : 112/112 places, 274/274 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 112/112 places, 274/274 transitions.
Applied a total of 0 rules in 5 ms. Remains 112 /112 variables (removed 0) and now considering 274/274 (removed 0) transitions.
[2025-06-01 08:51:09] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 08:51:09] [INFO ] Invariant cache hit.
[2025-06-01 08:51:10] [INFO ] Implicit Places using invariants in 169 ms returned []
[2025-06-01 08:51:10] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 08:51:10] [INFO ] Invariant cache hit.
[2025-06-01 08:51:10] [INFO ] State equation strengthened by 30 read => feed constraints.
[2025-06-01 08:51:10] [INFO ] Implicit Places using invariants and state equation in 407 ms returned []
Implicit Place search using SMT with State Equation took 589 ms to find 0 implicit places.
[2025-06-01 08:51:10] [INFO ] Redundant transitions in 1 ms returned []
Running 272 sub problems to find dead transitions.
[2025-06-01 08:51:10] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 08:51:10] [INFO ] Invariant cache hit.
[2025-06-01 08:51:10] [INFO ] State equation strengthened by 30 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/111 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/111 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 2 (OVERLAPS) 180/291 variables, 111/114 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/291 variables, 30/144 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/291 variables, 0/144 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 5 (OVERLAPS) 1/292 variables, 1/145 constraints. Problems are: Problem set: 0 solved, 272 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/292 variables, 0/145 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 7 (OVERLAPS) 0/292 variables, 0/145 constraints. Problems are: Problem set: 0 solved, 272 unsolved
No progress, stopping.
After SMT solving in domain Real declared 292/292 variables, and 145 constraints, problems are : Problem set: 0 solved, 272 unsolved in 13013 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 112/112 constraints, ReadFeed: 30/30 constraints, PredecessorRefiner: 272/272 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 272 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/111 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/111 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 2 (OVERLAPS) 180/291 variables, 111/114 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/291 variables, 30/144 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/291 variables, 32/176 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/291 variables, 0/176 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 6 (OVERLAPS) 1/292 variables, 1/177 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/292 variables, 240/417 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/292 variables, 0/417 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 9 (OVERLAPS) 0/292 variables, 0/417 constraints. Problems are: Problem set: 0 solved, 272 unsolved
No progress, stopping.
After SMT solving in domain Int declared 292/292 variables, and 417 constraints, problems are : Problem set: 0 solved, 272 unsolved in 16348 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 112/112 constraints, ReadFeed: 30/30 constraints, PredecessorRefiner: 272/272 constraints, Known Traps: 0/0 constraints]
After SMT, in 29708ms problems are : Problem set: 0 solved, 272 unsolved
Search for dead transitions found 0 dead transitions in 29713ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 30316 ms. Remains : 112/112 places, 274/274 transitions.
[2025-06-01 08:51:40] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
Found an invariant !
This invariant on transitions {25=1, 84=1, 138=1, 177=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {25=1, 84=1, 122=1, 172=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 65 ms. (steps per millisecond=153 ) properties (out of 6) seen :[13, 16, 9, 12, 4, 2]
Current structural bounds on expressions (after cover walk) : Max Seen:[42317, 38353, 599, 377, 76, 83] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 08:51:40] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 08:51:40] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[42317, 38353, 599, 377, 76, 83] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 1913 ms. (522 steps per ms)
BEST_FIRST walk for 6000006 steps (12 resets) in 6694 ms. (896 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[42317, 38353, 599, 377, 76, 83] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 08:51:49] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 08:51:49] [INFO ] Invariant cache hit.
[2025-06-01 08:51:49] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 08:51:49] [INFO ] [Real]Absence check using state equation in 58 ms returned sat
[2025-06-01 08:51:49] [INFO ] State equation strengthened by 30 read => feed constraints.
[2025-06-01 08:51:49] [INFO ] [Real]Added 30 Read/Feed constraints in 7 ms returned sat
[2025-06-01 08:51:49] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:51:49] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 08:51:49] [INFO ] [Nat]Absence check using state equation in 62 ms returned sat
[2025-06-01 08:51:49] [INFO ] [Nat]Added 30 Read/Feed constraints in 8 ms returned sat
[2025-06-01 08:51:49] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 25 ms.
[2025-06-01 08:51:49] [INFO ] Added : 7 causal constraints over 4 iterations in 98 ms. Result :sat
Minimization took 44 ms.
[2025-06-01 08:51:49] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 08:51:49] [INFO ] [Real]Absence check using state equation in 78 ms returned sat
[2025-06-01 08:51:49] [INFO ] [Real]Added 30 Read/Feed constraints in 9 ms returned sat
[2025-06-01 08:51:49] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:51:49] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:51:49] [INFO ] [Nat]Absence check using state equation in 73 ms returned sat
[2025-06-01 08:51:49] [INFO ] [Nat]Added 30 Read/Feed constraints in 9 ms returned sat
[2025-06-01 08:51:49] [INFO ] Deduced a trap composed of 33 places in 88 ms of which 2 ms to minimize.
[2025-06-01 08:51:49] [INFO ] Deduced a trap composed of 31 places in 86 ms of which 1 ms to minimize.
[2025-06-01 08:51:49] [INFO ] Deduced a trap composed of 22 places in 86 ms of which 1 ms to minimize.
[2025-06-01 08:51:49] [INFO ] Trap strengthening (SAT) tested/added 4/3 trap constraints in 296 ms
[2025-06-01 08:51:50] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 17 ms.
[2025-06-01 08:51:50] [INFO ] Added : 39 causal constraints over 8 iterations in 166 ms. Result :sat
Minimization took 59 ms.
[2025-06-01 08:51:50] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 08:51:50] [INFO ] [Real]Absence check using state equation in 91 ms returned sat
[2025-06-01 08:51:50] [INFO ] [Real]Added 30 Read/Feed constraints in 12 ms returned sat
[2025-06-01 08:51:50] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:51:50] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 08:51:50] [INFO ] [Nat]Absence check using state equation in 71 ms returned sat
[2025-06-01 08:51:50] [INFO ] [Nat]Added 30 Read/Feed constraints in 9 ms returned sat
[2025-06-01 08:51:50] [INFO ] Deduced a trap composed of 33 places in 88 ms of which 2 ms to minimize.
[2025-06-01 08:51:50] [INFO ] Deduced a trap composed of 31 places in 91 ms of which 1 ms to minimize.
[2025-06-01 08:51:50] [INFO ] Deduced a trap composed of 22 places in 86 ms of which 2 ms to minimize.
[2025-06-01 08:51:50] [INFO ] Deduced a trap composed of 24 places in 92 ms of which 2 ms to minimize.
[2025-06-01 08:51:50] [INFO ] Trap strengthening (SAT) tested/added 5/4 trap constraints in 403 ms
[2025-06-01 08:51:50] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 18 ms.
[2025-06-01 08:51:51] [INFO ] Added : 19 causal constraints over 5 iterations in 118 ms. Result :sat
Minimization took 53 ms.
[2025-06-01 08:51:51] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 08:51:51] [INFO ] [Real]Absence check using state equation in 90 ms returned sat
[2025-06-01 08:51:51] [INFO ] [Real]Added 30 Read/Feed constraints in 8 ms returned sat
[2025-06-01 08:51:51] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:51:51] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 08:51:51] [INFO ] [Nat]Absence check using state equation in 76 ms returned sat
[2025-06-01 08:51:51] [INFO ] [Nat]Added 30 Read/Feed constraints in 6 ms returned sat
[2025-06-01 08:51:51] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 20 ms.
[2025-06-01 08:51:51] [INFO ] Deduced a trap composed of 25 places in 89 ms of which 1 ms to minimize.
[2025-06-01 08:51:51] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 112 ms
[2025-06-01 08:51:51] [INFO ] Added : 9 causal constraints over 5 iterations in 230 ms. Result :sat
Minimization took 47 ms.
[2025-06-01 08:51:51] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 08:51:51] [INFO ] [Real]Absence check using state equation in 91 ms returned sat
[2025-06-01 08:51:51] [INFO ] [Real]Added 30 Read/Feed constraints in 13 ms returned sat
[2025-06-01 08:51:51] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:51:51] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:51:52] [INFO ] [Nat]Absence check using state equation in 80 ms returned sat
[2025-06-01 08:51:52] [INFO ] [Nat]Added 30 Read/Feed constraints in 11 ms returned sat
[2025-06-01 08:51:52] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 17 ms.
[2025-06-01 08:51:52] [INFO ] Added : 36 causal constraints over 10 iterations in 219 ms. Result :sat
Minimization took 90 ms.
[2025-06-01 08:51:52] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:51:52] [INFO ] [Real]Absence check using state equation in 81 ms returned sat
[2025-06-01 08:51:52] [INFO ] [Real]Added 30 Read/Feed constraints in 17 ms returned sat
[2025-06-01 08:51:52] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:51:52] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 08:51:52] [INFO ] [Nat]Absence check using state equation in 59 ms returned sat
[2025-06-01 08:51:52] [INFO ] [Nat]Added 30 Read/Feed constraints in 10 ms returned sat
[2025-06-01 08:51:52] [INFO ] Deduced a trap composed of 30 places in 93 ms of which 3 ms to minimize.
[2025-06-01 08:51:52] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 106 ms
[2025-06-01 08:51:52] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 14 ms.
[2025-06-01 08:51:52] [INFO ] Added : 6 causal constraints over 2 iterations in 56 ms. Result :sat
Minimization took 45 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[42317, 38353, 599, 377, 76, 83] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[42327, 38353, 599, 377, 76, 83] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Support contains 6 out of 112 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 112/112 places, 274/274 transitions.
Applied a total of 0 rules in 5 ms. Remains 112 /112 variables (removed 0) and now considering 274/274 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 6 ms. Remains : 112/112 places, 274/274 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 112/112 places, 274/274 transitions.
Applied a total of 0 rules in 5 ms. Remains 112 /112 variables (removed 0) and now considering 274/274 (removed 0) transitions.
[2025-06-01 08:52:57] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 08:52:57] [INFO ] Invariant cache hit.
[2025-06-01 08:52:57] [INFO ] Implicit Places using invariants in 127 ms returned []
[2025-06-01 08:52:57] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 08:52:57] [INFO ] Invariant cache hit.
[2025-06-01 08:52:57] [INFO ] State equation strengthened by 30 read => feed constraints.
[2025-06-01 08:52:57] [INFO ] Implicit Places using invariants and state equation in 225 ms returned []
Implicit Place search using SMT with State Equation took 353 ms to find 0 implicit places.
[2025-06-01 08:52:57] [INFO ] Redundant transitions in 1 ms returned []
Running 272 sub problems to find dead transitions.
[2025-06-01 08:52:57] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 08:52:57] [INFO ] Invariant cache hit.
[2025-06-01 08:52:57] [INFO ] State equation strengthened by 30 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/111 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/111 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 2 (OVERLAPS) 180/291 variables, 111/114 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/291 variables, 30/144 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/291 variables, 0/144 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 5 (OVERLAPS) 1/292 variables, 1/145 constraints. Problems are: Problem set: 0 solved, 272 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/292 variables, 0/145 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 7 (OVERLAPS) 0/292 variables, 0/145 constraints. Problems are: Problem set: 0 solved, 272 unsolved
No progress, stopping.
After SMT solving in domain Real declared 292/292 variables, and 145 constraints, problems are : Problem set: 0 solved, 272 unsolved in 12850 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 112/112 constraints, ReadFeed: 30/30 constraints, PredecessorRefiner: 272/272 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 272 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/111 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/111 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 2 (OVERLAPS) 180/291 variables, 111/114 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/291 variables, 30/144 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/291 variables, 32/176 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/291 variables, 0/176 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 6 (OVERLAPS) 1/292 variables, 1/177 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/292 variables, 240/417 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/292 variables, 0/417 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 9 (OVERLAPS) 0/292 variables, 0/417 constraints. Problems are: Problem set: 0 solved, 272 unsolved
No progress, stopping.
After SMT solving in domain Int declared 292/292 variables, and 417 constraints, problems are : Problem set: 0 solved, 272 unsolved in 19258 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 112/112 constraints, ReadFeed: 30/30 constraints, PredecessorRefiner: 272/272 constraints, Known Traps: 0/0 constraints]
After SMT, in 32367ms problems are : Problem set: 0 solved, 272 unsolved
Search for dead transitions found 0 dead transitions in 32370ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 32749 ms. Remains : 112/112 places, 274/274 transitions.
[2025-06-01 08:53:30] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
Found an invariant !
This invariant on transitions {25=1, 84=1, 138=1, 177=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 3 ms.
This minimized invariant on transitions {25=1, 84=1, 122=1, 172=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 43 ms. (steps per millisecond=232 ) properties (out of 6) seen :[12, 19, 4, 10, 2, 4]
Current structural bounds on expressions (after cover walk) : Max Seen:[42327, 38353, 599, 377, 76, 83] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 08:53:30] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 08:53:30] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[42327, 38353, 599, 377, 76, 83] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 1725 ms. (579 steps per ms)
BEST_FIRST walk for 6000006 steps (12 resets) in 6901 ms. (869 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[42327, 38353, 599, 377, 76, 83] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 08:53:38] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 08:53:38] [INFO ] Invariant cache hit.
[2025-06-01 08:53:38] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 08:53:38] [INFO ] [Real]Absence check using state equation in 58 ms returned sat
[2025-06-01 08:53:38] [INFO ] State equation strengthened by 30 read => feed constraints.
[2025-06-01 08:53:38] [INFO ] [Real]Added 30 Read/Feed constraints in 8 ms returned sat
[2025-06-01 08:53:38] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:53:38] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 08:53:39] [INFO ] [Nat]Absence check using state equation in 55 ms returned sat
[2025-06-01 08:53:39] [INFO ] [Nat]Added 30 Read/Feed constraints in 7 ms returned sat
[2025-06-01 08:53:39] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 15 ms.
[2025-06-01 08:53:39] [INFO ] Added : 7 causal constraints over 4 iterations in 73 ms. Result :sat
Minimization took 43 ms.
[2025-06-01 08:53:39] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:53:39] [INFO ] [Real]Absence check using state equation in 84 ms returned sat
[2025-06-01 08:53:39] [INFO ] [Real]Added 30 Read/Feed constraints in 18 ms returned sat
[2025-06-01 08:53:39] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:53:39] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:53:39] [INFO ] [Nat]Absence check using state equation in 93 ms returned sat
[2025-06-01 08:53:39] [INFO ] [Nat]Added 30 Read/Feed constraints in 13 ms returned sat
[2025-06-01 08:53:39] [INFO ] Deduced a trap composed of 33 places in 138 ms of which 2 ms to minimize.
[2025-06-01 08:53:39] [INFO ] Deduced a trap composed of 31 places in 124 ms of which 2 ms to minimize.
[2025-06-01 08:53:39] [INFO ] Deduced a trap composed of 22 places in 134 ms of which 2 ms to minimize.
[2025-06-01 08:53:39] [INFO ] Trap strengthening (SAT) tested/added 4/3 trap constraints in 458 ms
[2025-06-01 08:53:40] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 25 ms.
[2025-06-01 08:53:40] [INFO ] Added : 39 causal constraints over 8 iterations in 230 ms. Result :sat
Minimization took 90 ms.
[2025-06-01 08:53:40] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 08:53:40] [INFO ] [Real]Absence check using state equation in 92 ms returned sat
[2025-06-01 08:53:40] [INFO ] [Real]Added 30 Read/Feed constraints in 13 ms returned sat
[2025-06-01 08:53:40] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:53:40] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:53:40] [INFO ] [Nat]Absence check using state equation in 93 ms returned sat
[2025-06-01 08:53:40] [INFO ] [Nat]Added 30 Read/Feed constraints in 13 ms returned sat
[2025-06-01 08:53:40] [INFO ] Deduced a trap composed of 33 places in 134 ms of which 3 ms to minimize.
[2025-06-01 08:53:40] [INFO ] Deduced a trap composed of 31 places in 142 ms of which 3 ms to minimize.
[2025-06-01 08:53:41] [INFO ] Deduced a trap composed of 22 places in 137 ms of which 2 ms to minimize.
[2025-06-01 08:53:41] [INFO ] Deduced a trap composed of 24 places in 149 ms of which 2 ms to minimize.
[2025-06-01 08:53:41] [INFO ] Trap strengthening (SAT) tested/added 5/4 trap constraints in 635 ms
[2025-06-01 08:53:41] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 23 ms.
[2025-06-01 08:53:41] [INFO ] Added : 19 causal constraints over 5 iterations in 157 ms. Result :sat
Minimization took 80 ms.
[2025-06-01 08:53:41] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 08:53:41] [INFO ] [Real]Absence check using state equation in 93 ms returned sat
[2025-06-01 08:53:41] [INFO ] [Real]Added 30 Read/Feed constraints in 12 ms returned sat
[2025-06-01 08:53:41] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:53:41] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 08:53:41] [INFO ] [Nat]Absence check using state equation in 90 ms returned sat
[2025-06-01 08:53:41] [INFO ] [Nat]Added 30 Read/Feed constraints in 8 ms returned sat
[2025-06-01 08:53:41] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 23 ms.
[2025-06-01 08:53:42] [INFO ] Deduced a trap composed of 25 places in 136 ms of which 2 ms to minimize.
[2025-06-01 08:53:42] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 164 ms
[2025-06-01 08:53:42] [INFO ] Added : 9 causal constraints over 5 iterations in 311 ms. Result :sat
Minimization took 69 ms.
[2025-06-01 08:53:42] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:53:42] [INFO ] [Real]Absence check using state equation in 92 ms returned sat
[2025-06-01 08:53:42] [INFO ] [Real]Added 30 Read/Feed constraints in 13 ms returned sat
[2025-06-01 08:53:42] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:53:42] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 08:53:42] [INFO ] [Nat]Absence check using state equation in 91 ms returned sat
[2025-06-01 08:53:42] [INFO ] [Nat]Added 30 Read/Feed constraints in 13 ms returned sat
[2025-06-01 08:53:42] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 32 ms.
[2025-06-01 08:53:42] [INFO ] Added : 36 causal constraints over 10 iterations in 278 ms. Result :sat
Minimization took 89 ms.
[2025-06-01 08:53:43] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 08:53:43] [INFO ] [Real]Absence check using state equation in 92 ms returned sat
[2025-06-01 08:53:43] [INFO ] [Real]Added 30 Read/Feed constraints in 17 ms returned sat
[2025-06-01 08:53:43] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:53:43] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 08:53:43] [INFO ] [Nat]Absence check using state equation in 97 ms returned sat
[2025-06-01 08:53:43] [INFO ] [Nat]Added 30 Read/Feed constraints in 15 ms returned sat
[2025-06-01 08:53:43] [INFO ] Deduced a trap composed of 30 places in 117 ms of which 3 ms to minimize.
[2025-06-01 08:53:43] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 141 ms
[2025-06-01 08:53:43] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 22 ms.
[2025-06-01 08:53:43] [INFO ] Added : 6 causal constraints over 2 iterations in 88 ms. Result :sat
Minimization took 74 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[42327, 38353, 599, 377, 76, 83] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[42343, 39508, 599, 377, 76, 83] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Support contains 6 out of 112 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 112/112 places, 274/274 transitions.
Applied a total of 0 rules in 5 ms. Remains 112 /112 variables (removed 0) and now considering 274/274 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 5 ms. Remains : 112/112 places, 274/274 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 112/112 places, 274/274 transitions.
Applied a total of 0 rules in 5 ms. Remains 112 /112 variables (removed 0) and now considering 274/274 (removed 0) transitions.
[2025-06-01 08:54:48] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 08:54:48] [INFO ] Invariant cache hit.
[2025-06-01 08:54:49] [INFO ] Implicit Places using invariants in 128 ms returned []
[2025-06-01 08:54:49] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 08:54:49] [INFO ] Invariant cache hit.
[2025-06-01 08:54:49] [INFO ] State equation strengthened by 30 read => feed constraints.
[2025-06-01 08:54:49] [INFO ] Implicit Places using invariants and state equation in 264 ms returned []
Implicit Place search using SMT with State Equation took 435 ms to find 0 implicit places.
[2025-06-01 08:54:49] [INFO ] Redundant transitions in 2 ms returned []
Running 272 sub problems to find dead transitions.
[2025-06-01 08:54:49] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 08:54:49] [INFO ] Invariant cache hit.
[2025-06-01 08:54:49] [INFO ] State equation strengthened by 30 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/111 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/111 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 2 (OVERLAPS) 180/291 variables, 111/114 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/291 variables, 30/144 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/291 variables, 0/144 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 5 (OVERLAPS) 1/292 variables, 1/145 constraints. Problems are: Problem set: 0 solved, 272 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/292 variables, 0/145 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 7 (OVERLAPS) 0/292 variables, 0/145 constraints. Problems are: Problem set: 0 solved, 272 unsolved
No progress, stopping.
After SMT solving in domain Real declared 292/292 variables, and 145 constraints, problems are : Problem set: 0 solved, 272 unsolved in 13063 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 112/112 constraints, ReadFeed: 30/30 constraints, PredecessorRefiner: 272/272 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 272 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/111 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/111 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 2 (OVERLAPS) 180/291 variables, 111/114 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/291 variables, 30/144 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/291 variables, 32/176 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/291 variables, 0/176 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 6 (OVERLAPS) 1/292 variables, 1/177 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/292 variables, 240/417 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/292 variables, 0/417 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 9 (OVERLAPS) 0/292 variables, 0/417 constraints. Problems are: Problem set: 0 solved, 272 unsolved
No progress, stopping.
After SMT solving in domain Int declared 292/292 variables, and 417 constraints, problems are : Problem set: 0 solved, 272 unsolved in 17446 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 112/112 constraints, ReadFeed: 30/30 constraints, PredecessorRefiner: 272/272 constraints, Known Traps: 0/0 constraints]
After SMT, in 30893ms problems are : Problem set: 0 solved, 272 unsolved
Search for dead transitions found 0 dead transitions in 30898ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 31353 ms. Remains : 112/112 places, 274/274 transitions.
[2025-06-01 08:55:20] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
Found an invariant !
This invariant on transitions {25=1, 84=1, 138=1, 177=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {25=1, 84=1, 122=1, 172=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 6) seen :[9, 16, 4, 9, 4, 2]
Current structural bounds on expressions (after cover walk) : Max Seen:[42343, 39508, 599, 377, 76, 83] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 08:55:20] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 08:55:20] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[42343, 39508, 599, 377, 76, 83] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 1458 ms. (685 steps per ms)
BEST_FIRST walk for 6000004 steps (12 resets) in 7211 ms. (831 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[42343, 39508, 599, 377, 76, 83] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 08:55:29] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 08:55:29] [INFO ] Invariant cache hit.
[2025-06-01 08:55:29] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:55:29] [INFO ] [Real]Absence check using state equation in 61 ms returned sat
[2025-06-01 08:55:29] [INFO ] State equation strengthened by 30 read => feed constraints.
[2025-06-01 08:55:29] [INFO ] [Real]Added 30 Read/Feed constraints in 8 ms returned sat
[2025-06-01 08:55:29] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:55:29] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 08:55:29] [INFO ] [Nat]Absence check using state equation in 63 ms returned sat
[2025-06-01 08:55:29] [INFO ] [Nat]Added 30 Read/Feed constraints in 7 ms returned sat
[2025-06-01 08:55:29] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 17 ms.
[2025-06-01 08:55:29] [INFO ] Added : 7 causal constraints over 4 iterations in 80 ms. Result :sat
Minimization took 45 ms.
[2025-06-01 08:55:29] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 08:55:29] [INFO ] [Real]Absence check using state equation in 70 ms returned sat
[2025-06-01 08:55:29] [INFO ] [Real]Added 30 Read/Feed constraints in 10 ms returned sat
[2025-06-01 08:55:29] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:55:29] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:55:29] [INFO ] [Nat]Absence check using state equation in 63 ms returned sat
[2025-06-01 08:55:29] [INFO ] [Nat]Added 30 Read/Feed constraints in 9 ms returned sat
[2025-06-01 08:55:29] [INFO ] Deduced a trap composed of 33 places in 131 ms of which 3 ms to minimize.
[2025-06-01 08:55:29] [INFO ] Deduced a trap composed of 31 places in 112 ms of which 2 ms to minimize.
[2025-06-01 08:55:30] [INFO ] Deduced a trap composed of 22 places in 89 ms of which 2 ms to minimize.
[2025-06-01 08:55:30] [INFO ] Trap strengthening (SAT) tested/added 4/3 trap constraints in 369 ms
[2025-06-01 08:55:30] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 17 ms.
[2025-06-01 08:55:30] [INFO ] Added : 39 causal constraints over 8 iterations in 165 ms. Result :sat
Minimization took 58 ms.
[2025-06-01 08:55:30] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 08:55:30] [INFO ] [Real]Absence check using state equation in 86 ms returned sat
[2025-06-01 08:55:30] [INFO ] [Real]Added 30 Read/Feed constraints in 10 ms returned sat
[2025-06-01 08:55:30] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:55:30] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:55:30] [INFO ] [Nat]Absence check using state equation in 53 ms returned sat
[2025-06-01 08:55:30] [INFO ] [Nat]Added 30 Read/Feed constraints in 7 ms returned sat
[2025-06-01 08:55:30] [INFO ] Deduced a trap composed of 33 places in 76 ms of which 2 ms to minimize.
[2025-06-01 08:55:30] [INFO ] Deduced a trap composed of 31 places in 139 ms of which 2 ms to minimize.
[2025-06-01 08:55:30] [INFO ] Deduced a trap composed of 22 places in 89 ms of which 1 ms to minimize.
[2025-06-01 08:55:31] [INFO ] Deduced a trap composed of 24 places in 138 ms of which 3 ms to minimize.
[2025-06-01 08:55:31] [INFO ] Trap strengthening (SAT) tested/added 5/4 trap constraints in 488 ms
[2025-06-01 08:55:31] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 17 ms.
[2025-06-01 08:55:31] [INFO ] Added : 19 causal constraints over 5 iterations in 117 ms. Result :sat
Minimization took 50 ms.
[2025-06-01 08:55:31] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:55:31] [INFO ] [Real]Absence check using state equation in 74 ms returned sat
[2025-06-01 08:55:31] [INFO ] [Real]Added 30 Read/Feed constraints in 7 ms returned sat
[2025-06-01 08:55:31] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:55:31] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 08:55:31] [INFO ] [Nat]Absence check using state equation in 77 ms returned sat
[2025-06-01 08:55:31] [INFO ] [Nat]Added 30 Read/Feed constraints in 7 ms returned sat
[2025-06-01 08:55:31] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 19 ms.
[2025-06-01 08:55:31] [INFO ] Deduced a trap composed of 25 places in 91 ms of which 1 ms to minimize.
[2025-06-01 08:55:31] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 113 ms
[2025-06-01 08:55:31] [INFO ] Added : 9 causal constraints over 5 iterations in 230 ms. Result :sat
Minimization took 47 ms.
[2025-06-01 08:55:31] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:55:31] [INFO ] [Real]Absence check using state equation in 77 ms returned sat
[2025-06-01 08:55:31] [INFO ] [Real]Added 30 Read/Feed constraints in 10 ms returned sat
[2025-06-01 08:55:31] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:55:31] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:55:32] [INFO ] [Nat]Absence check using state equation in 78 ms returned sat
[2025-06-01 08:55:32] [INFO ] [Nat]Added 30 Read/Feed constraints in 9 ms returned sat
[2025-06-01 08:55:32] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 19 ms.
[2025-06-01 08:55:32] [INFO ] Added : 36 causal constraints over 10 iterations in 202 ms. Result :sat
Minimization took 59 ms.
[2025-06-01 08:55:32] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 08:55:32] [INFO ] [Real]Absence check using state equation in 74 ms returned sat
[2025-06-01 08:55:32] [INFO ] [Real]Added 30 Read/Feed constraints in 13 ms returned sat
[2025-06-01 08:55:32] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:55:32] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 08:55:32] [INFO ] [Nat]Absence check using state equation in 92 ms returned sat
[2025-06-01 08:55:32] [INFO ] [Nat]Added 30 Read/Feed constraints in 15 ms returned sat
[2025-06-01 08:55:32] [INFO ] Deduced a trap composed of 30 places in 87 ms of which 2 ms to minimize.
[2025-06-01 08:55:32] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 108 ms
[2025-06-01 08:55:32] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 24 ms.
[2025-06-01 08:55:32] [INFO ] Added : 6 causal constraints over 2 iterations in 81 ms. Result :sat
Minimization took 70 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[42343, 39508, 599, 377, 76, 83] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[42349, 39508, 599, 377, 76, 83] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Support contains 6 out of 112 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 112/112 places, 274/274 transitions.
Applied a total of 0 rules in 5 ms. Remains 112 /112 variables (removed 0) and now considering 274/274 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 5 ms. Remains : 112/112 places, 274/274 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 112/112 places, 274/274 transitions.
Applied a total of 0 rules in 4 ms. Remains 112 /112 variables (removed 0) and now considering 274/274 (removed 0) transitions.
[2025-06-01 08:56:37] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 08:56:37] [INFO ] Invariant cache hit.
[2025-06-01 08:56:37] [INFO ] Implicit Places using invariants in 135 ms returned []
[2025-06-01 08:56:37] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 08:56:37] [INFO ] Invariant cache hit.
[2025-06-01 08:56:37] [INFO ] State equation strengthened by 30 read => feed constraints.
[2025-06-01 08:56:38] [INFO ] Implicit Places using invariants and state equation in 258 ms returned []
Implicit Place search using SMT with State Equation took 395 ms to find 0 implicit places.
[2025-06-01 08:56:38] [INFO ] Redundant transitions in 1 ms returned []
Running 272 sub problems to find dead transitions.
[2025-06-01 08:56:38] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 08:56:38] [INFO ] Invariant cache hit.
[2025-06-01 08:56:38] [INFO ] State equation strengthened by 30 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/111 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/111 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 2 (OVERLAPS) 180/291 variables, 111/114 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/291 variables, 30/144 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/291 variables, 0/144 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 5 (OVERLAPS) 1/292 variables, 1/145 constraints. Problems are: Problem set: 0 solved, 272 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/292 variables, 0/145 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 7 (OVERLAPS) 0/292 variables, 0/145 constraints. Problems are: Problem set: 0 solved, 272 unsolved
No progress, stopping.
After SMT solving in domain Real declared 292/292 variables, and 145 constraints, problems are : Problem set: 0 solved, 272 unsolved in 10082 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 112/112 constraints, ReadFeed: 30/30 constraints, PredecessorRefiner: 272/272 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 272 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/111 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/111 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 2 (OVERLAPS) 180/291 variables, 111/114 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/291 variables, 30/144 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/291 variables, 32/176 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/291 variables, 0/176 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 6 (OVERLAPS) 1/292 variables, 1/177 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/292 variables, 240/417 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/292 variables, 0/417 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 9 (OVERLAPS) 0/292 variables, 0/417 constraints. Problems are: Problem set: 0 solved, 272 unsolved
No progress, stopping.
After SMT solving in domain Int declared 292/292 variables, and 417 constraints, problems are : Problem set: 0 solved, 272 unsolved in 17472 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 112/112 constraints, ReadFeed: 30/30 constraints, PredecessorRefiner: 272/272 constraints, Known Traps: 0/0 constraints]
After SMT, in 27823ms problems are : Problem set: 0 solved, 272 unsolved
Search for dead transitions found 0 dead transitions in 27827ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 28232 ms. Remains : 112/112 places, 274/274 transitions.
[2025-06-01 08:57:05] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
Found an invariant !
This invariant on transitions {25=1, 84=1, 138=1, 177=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {25=1, 84=1, 122=1, 172=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 :[10, 15, 5, 8, 6, 2]
Current structural bounds on expressions (after cover walk) : Max Seen:[42349, 39508, 599, 377, 76, 83] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 08:57:05] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 08:57:05] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[42349, 39508, 599, 377, 76, 83] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 1465 ms. (682 steps per ms)
BEST_FIRST walk for 6000006 steps (12 resets) in 7185 ms. (834 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[42349, 39508, 599, 377, 76, 83] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 08:57:14] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 08:57:14] [INFO ] Invariant cache hit.
[2025-06-01 08:57:14] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:57:14] [INFO ] [Real]Absence check using state equation in 63 ms returned sat
[2025-06-01 08:57:14] [INFO ] State equation strengthened by 30 read => feed constraints.
[2025-06-01 08:57:14] [INFO ] [Real]Added 30 Read/Feed constraints in 7 ms returned sat
[2025-06-01 08:57:14] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:57:14] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:57:14] [INFO ] [Nat]Absence check using state equation in 80 ms returned sat
[2025-06-01 08:57:14] [INFO ] [Nat]Added 30 Read/Feed constraints in 9 ms returned sat
[2025-06-01 08:57:14] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 18 ms.
[2025-06-01 08:57:15] [INFO ] Added : 7 causal constraints over 4 iterations in 99 ms. Result :sat
Minimization took 72 ms.
[2025-06-01 08:57:15] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 08:57:15] [INFO ] [Real]Absence check using state equation in 61 ms returned sat
[2025-06-01 08:57:15] [INFO ] [Real]Added 30 Read/Feed constraints in 9 ms returned sat
[2025-06-01 08:57:15] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:57:15] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 08:57:15] [INFO ] [Nat]Absence check using state equation in 82 ms returned sat
[2025-06-01 08:57:15] [INFO ] [Nat]Added 30 Read/Feed constraints in 12 ms returned sat
[2025-06-01 08:57:15] [INFO ] Deduced a trap composed of 33 places in 74 ms of which 2 ms to minimize.
[2025-06-01 08:57:15] [INFO ] Deduced a trap composed of 31 places in 79 ms of which 2 ms to minimize.
[2025-06-01 08:57:15] [INFO ] Deduced a trap composed of 22 places in 72 ms of which 2 ms to minimize.
[2025-06-01 08:57:15] [INFO ] Trap strengthening (SAT) tested/added 4/3 trap constraints in 264 ms
[2025-06-01 08:57:15] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 16 ms.
[2025-06-01 08:57:15] [INFO ] Added : 39 causal constraints over 8 iterations in 192 ms. Result :sat
Minimization took 90 ms.
[2025-06-01 08:57:15] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 08:57:16] [INFO ] [Real]Absence check using state equation in 63 ms returned sat
[2025-06-01 08:57:16] [INFO ] [Real]Added 30 Read/Feed constraints in 8 ms returned sat
[2025-06-01 08:57:16] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:57:16] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:57:16] [INFO ] [Nat]Absence check using state equation in 81 ms returned sat
[2025-06-01 08:57:16] [INFO ] [Nat]Added 30 Read/Feed constraints in 11 ms returned sat
[2025-06-01 08:57:16] [INFO ] Deduced a trap composed of 33 places in 72 ms of which 2 ms to minimize.
[2025-06-01 08:57:16] [INFO ] Deduced a trap composed of 31 places in 72 ms of which 2 ms to minimize.
[2025-06-01 08:57:16] [INFO ] Deduced a trap composed of 22 places in 115 ms of which 3 ms to minimize.
[2025-06-01 08:57:16] [INFO ] Deduced a trap composed of 24 places in 73 ms of which 2 ms to minimize.
[2025-06-01 08:57:16] [INFO ] Trap strengthening (SAT) tested/added 5/4 trap constraints in 384 ms
[2025-06-01 08:57:16] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 17 ms.
[2025-06-01 08:57:16] [INFO ] Added : 19 causal constraints over 5 iterations in 131 ms. Result :sat
Minimization took 74 ms.
[2025-06-01 08:57:16] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 08:57:16] [INFO ] [Real]Absence check using state equation in 84 ms returned sat
[2025-06-01 08:57:16] [INFO ] [Real]Added 30 Read/Feed constraints in 8 ms returned sat
[2025-06-01 08:57:16] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:57:16] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 08:57:17] [INFO ] [Nat]Absence check using state equation in 62 ms returned sat
[2025-06-01 08:57:17] [INFO ] [Nat]Added 30 Read/Feed constraints in 6 ms returned sat
[2025-06-01 08:57:17] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 14 ms.
[2025-06-01 08:57:17] [INFO ] Deduced a trap composed of 25 places in 94 ms of which 2 ms to minimize.
[2025-06-01 08:57:17] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 112 ms
[2025-06-01 08:57:17] [INFO ] Added : 9 causal constraints over 5 iterations in 206 ms. Result :sat
Minimization took 45 ms.
[2025-06-01 08:57:17] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:57:17] [INFO ] [Real]Absence check using state equation in 82 ms returned sat
[2025-06-01 08:57:17] [INFO ] [Real]Added 30 Read/Feed constraints in 12 ms returned sat
[2025-06-01 08:57:17] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:57:17] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:57:17] [INFO ] [Nat]Absence check using state equation in 60 ms returned sat
[2025-06-01 08:57:17] [INFO ] [Nat]Added 30 Read/Feed constraints in 7 ms returned sat
[2025-06-01 08:57:17] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 14 ms.
[2025-06-01 08:57:17] [INFO ] Added : 36 causal constraints over 10 iterations in 208 ms. Result :sat
Minimization took 56 ms.
[2025-06-01 08:57:17] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 08:57:17] [INFO ] [Real]Absence check using state equation in 78 ms returned sat
[2025-06-01 08:57:18] [INFO ] [Real]Added 30 Read/Feed constraints in 13 ms returned sat
[2025-06-01 08:57:18] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:57:18] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 08:57:18] [INFO ] [Nat]Absence check using state equation in 77 ms returned sat
[2025-06-01 08:57:18] [INFO ] [Nat]Added 30 Read/Feed constraints in 10 ms returned sat
[2025-06-01 08:57:18] [INFO ] Deduced a trap composed of 30 places in 92 ms of which 2 ms to minimize.
[2025-06-01 08:57:18] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 109 ms
[2025-06-01 08:57:18] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 19 ms.
[2025-06-01 08:57:18] [INFO ] Added : 6 causal constraints over 2 iterations in 73 ms. Result :sat
Minimization took 43 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[42349, 39508, 599, 377, 76, 83] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[42370, 39508, 599, 377, 76, 83] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Support contains 6 out of 112 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 112/112 places, 274/274 transitions.
Applied a total of 0 rules in 10 ms. Remains 112 /112 variables (removed 0) and now considering 274/274 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 10 ms. Remains : 112/112 places, 274/274 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 112/112 places, 274/274 transitions.
Applied a total of 0 rules in 4 ms. Remains 112 /112 variables (removed 0) and now considering 274/274 (removed 0) transitions.
[2025-06-01 08:58:23] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 08:58:23] [INFO ] Invariant cache hit.
[2025-06-01 08:58:23] [INFO ] Implicit Places using invariants in 142 ms returned []
[2025-06-01 08:58:23] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 08:58:23] [INFO ] Invariant cache hit.
[2025-06-01 08:58:23] [INFO ] State equation strengthened by 30 read => feed constraints.
[2025-06-01 08:58:23] [INFO ] Implicit Places using invariants and state equation in 253 ms returned []
Implicit Place search using SMT with State Equation took 416 ms to find 0 implicit places.
[2025-06-01 08:58:23] [INFO ] Redundant transitions in 1 ms returned []
Running 272 sub problems to find dead transitions.
[2025-06-01 08:58:23] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 08:58:23] [INFO ] Invariant cache hit.
[2025-06-01 08:58:23] [INFO ] State equation strengthened by 30 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/111 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/111 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 2 (OVERLAPS) 180/291 variables, 111/114 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/291 variables, 30/144 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/291 variables, 0/144 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 5 (OVERLAPS) 1/292 variables, 1/145 constraints. Problems are: Problem set: 0 solved, 272 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/292 variables, 0/145 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 7 (OVERLAPS) 0/292 variables, 0/145 constraints. Problems are: Problem set: 0 solved, 272 unsolved
No progress, stopping.
After SMT solving in domain Real declared 292/292 variables, and 145 constraints, problems are : Problem set: 0 solved, 272 unsolved in 11905 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 112/112 constraints, ReadFeed: 30/30 constraints, PredecessorRefiner: 272/272 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 272 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/111 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/111 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 2 (OVERLAPS) 180/291 variables, 111/114 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/291 variables, 30/144 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/291 variables, 32/176 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/291 variables, 0/176 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 6 (OVERLAPS) 1/292 variables, 1/177 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/292 variables, 240/417 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/292 variables, 0/417 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 9 (OVERLAPS) 0/292 variables, 0/417 constraints. Problems are: Problem set: 0 solved, 272 unsolved
No progress, stopping.
After SMT solving in domain Int declared 292/292 variables, and 417 constraints, problems are : Problem set: 0 solved, 272 unsolved in 19297 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 112/112 constraints, ReadFeed: 30/30 constraints, PredecessorRefiner: 272/272 constraints, Known Traps: 0/0 constraints]
After SMT, in 31482ms problems are : Problem set: 0 solved, 272 unsolved
Search for dead transitions found 0 dead transitions in 31486ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 31914 ms. Remains : 112/112 places, 274/274 transitions.
[2025-06-01 08:58:55] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
Found an invariant !
This invariant on transitions {25=1, 84=1, 138=1, 177=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {25=1, 84=1, 122=1, 172=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 :[12, 20, 6, 4, 3, 2]
Current structural bounds on expressions (after cover walk) : Max Seen:[42370, 39508, 599, 377, 76, 83] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 08:58:55] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 08:58:55] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[42370, 39508, 599, 377, 76, 83] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 1484 ms. (673 steps per ms)
BEST_FIRST walk for 6000006 steps (12 resets) in 7501 ms. (799 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[42370, 39508, 599, 377, 76, 83] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 08:59:04] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 08:59:04] [INFO ] Invariant cache hit.
[2025-06-01 08:59:04] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 08:59:04] [INFO ] [Real]Absence check using state equation in 60 ms returned sat
[2025-06-01 08:59:04] [INFO ] State equation strengthened by 30 read => feed constraints.
[2025-06-01 08:59:04] [INFO ] [Real]Added 30 Read/Feed constraints in 8 ms returned sat
[2025-06-01 08:59:04] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:59:04] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 08:59:04] [INFO ] [Nat]Absence check using state equation in 54 ms returned sat
[2025-06-01 08:59:04] [INFO ] [Nat]Added 30 Read/Feed constraints in 11 ms returned sat
[2025-06-01 08:59:04] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 15 ms.
[2025-06-01 08:59:04] [INFO ] Added : 7 causal constraints over 4 iterations in 74 ms. Result :sat
Minimization took 47 ms.
[2025-06-01 08:59:04] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 08:59:04] [INFO ] [Real]Absence check using state equation in 96 ms returned sat
[2025-06-01 08:59:04] [INFO ] [Real]Added 30 Read/Feed constraints in 13 ms returned sat
[2025-06-01 08:59:04] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:59:05] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:59:05] [INFO ] [Nat]Absence check using state equation in 91 ms returned sat
[2025-06-01 08:59:05] [INFO ] [Nat]Added 30 Read/Feed constraints in 13 ms returned sat
[2025-06-01 08:59:05] [INFO ] Deduced a trap composed of 33 places in 130 ms of which 3 ms to minimize.
[2025-06-01 08:59:05] [INFO ] Deduced a trap composed of 31 places in 152 ms of which 2 ms to minimize.
[2025-06-01 08:59:05] [INFO ] Deduced a trap composed of 22 places in 145 ms of which 2 ms to minimize.
[2025-06-01 08:59:05] [INFO ] Trap strengthening (SAT) tested/added 4/3 trap constraints in 478 ms
[2025-06-01 08:59:05] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 21 ms.
[2025-06-01 08:59:05] [INFO ] Added : 39 causal constraints over 8 iterations in 229 ms. Result :sat
Minimization took 89 ms.
[2025-06-01 08:59:05] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:59:06] [INFO ] [Real]Absence check using state equation in 93 ms returned sat
[2025-06-01 08:59:06] [INFO ] [Real]Added 30 Read/Feed constraints in 14 ms returned sat
[2025-06-01 08:59:06] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:59:06] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:59:06] [INFO ] [Nat]Absence check using state equation in 90 ms returned sat
[2025-06-01 08:59:06] [INFO ] [Nat]Added 30 Read/Feed constraints in 11 ms returned sat
[2025-06-01 08:59:06] [INFO ] Deduced a trap composed of 33 places in 147 ms of which 2 ms to minimize.
[2025-06-01 08:59:06] [INFO ] Deduced a trap composed of 31 places in 141 ms of which 3 ms to minimize.
[2025-06-01 08:59:06] [INFO ] Deduced a trap composed of 22 places in 139 ms of which 2 ms to minimize.
[2025-06-01 08:59:06] [INFO ] Deduced a trap composed of 24 places in 146 ms of which 2 ms to minimize.
[2025-06-01 08:59:06] [INFO ] Trap strengthening (SAT) tested/added 5/4 trap constraints in 638 ms
[2025-06-01 08:59:06] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 21 ms.
[2025-06-01 08:59:07] [INFO ] Added : 19 causal constraints over 5 iterations in 155 ms. Result :sat
Minimization took 80 ms.
[2025-06-01 08:59:07] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:59:07] [INFO ] [Real]Absence check using state equation in 93 ms returned sat
[2025-06-01 08:59:07] [INFO ] [Real]Added 30 Read/Feed constraints in 22 ms returned sat
[2025-06-01 08:59:07] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:59:07] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:59:07] [INFO ] [Nat]Absence check using state equation in 89 ms returned sat
[2025-06-01 08:59:07] [INFO ] [Nat]Added 30 Read/Feed constraints in 9 ms returned sat
[2025-06-01 08:59:07] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 23 ms.
[2025-06-01 08:59:07] [INFO ] Deduced a trap composed of 25 places in 136 ms of which 2 ms to minimize.
[2025-06-01 08:59:07] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 168 ms
[2025-06-01 08:59:07] [INFO ] Added : 9 causal constraints over 5 iterations in 317 ms. Result :sat
Minimization took 71 ms.
[2025-06-01 08:59:08] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:59:08] [INFO ] [Real]Absence check using state equation in 92 ms returned sat
[2025-06-01 08:59:08] [INFO ] [Real]Added 30 Read/Feed constraints in 13 ms returned sat
[2025-06-01 08:59:08] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:59:08] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:59:08] [INFO ] [Nat]Absence check using state equation in 90 ms returned sat
[2025-06-01 08:59:08] [INFO ] [Nat]Added 30 Read/Feed constraints in 12 ms returned sat
[2025-06-01 08:59:08] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 30 ms.
[2025-06-01 08:59:08] [INFO ] Added : 36 causal constraints over 10 iterations in 267 ms. Result :sat
Minimization took 89 ms.
[2025-06-01 08:59:08] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 08:59:08] [INFO ] [Real]Absence check using state equation in 95 ms returned sat
[2025-06-01 08:59:08] [INFO ] [Real]Added 30 Read/Feed constraints in 17 ms returned sat
[2025-06-01 08:59:08] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 08:59:08] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 08:59:09] [INFO ] [Nat]Absence check using state equation in 93 ms returned sat
[2025-06-01 08:59:09] [INFO ] [Nat]Added 30 Read/Feed constraints in 16 ms returned sat
[2025-06-01 08:59:09] [INFO ] Deduced a trap composed of 30 places in 141 ms of which 3 ms to minimize.
[2025-06-01 08:59:09] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 167 ms
[2025-06-01 08:59:09] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 25 ms.
[2025-06-01 08:59:09] [INFO ] Added : 6 causal constraints over 2 iterations in 91 ms. Result :sat
Minimization took 70 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[42370, 39508, 599, 377, 76, 83] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[42385, 39508, 599, 377, 76, 83] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Support contains 6 out of 112 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 112/112 places, 274/274 transitions.
Applied a total of 0 rules in 4 ms. Remains 112 /112 variables (removed 0) and now considering 274/274 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 4 ms. Remains : 112/112 places, 274/274 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 112/112 places, 274/274 transitions.
Applied a total of 0 rules in 4 ms. Remains 112 /112 variables (removed 0) and now considering 274/274 (removed 0) transitions.
[2025-06-01 09:00:14] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 09:00:14] [INFO ] Invariant cache hit.
[2025-06-01 09:00:14] [INFO ] Implicit Places using invariants in 144 ms returned []
[2025-06-01 09:00:14] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 09:00:14] [INFO ] Invariant cache hit.
[2025-06-01 09:00:14] [INFO ] State equation strengthened by 30 read => feed constraints.
[2025-06-01 09:00:14] [INFO ] Implicit Places using invariants and state equation in 340 ms returned []
Implicit Place search using SMT with State Equation took 525 ms to find 0 implicit places.
[2025-06-01 09:00:14] [INFO ] Redundant transitions in 1 ms returned []
Running 272 sub problems to find dead transitions.
[2025-06-01 09:00:14] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 09:00:14] [INFO ] Invariant cache hit.
[2025-06-01 09:00:14] [INFO ] State equation strengthened by 30 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/111 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/111 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 2 (OVERLAPS) 180/291 variables, 111/114 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/291 variables, 30/144 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/291 variables, 0/144 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 5 (OVERLAPS) 1/292 variables, 1/145 constraints. Problems are: Problem set: 0 solved, 272 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/292 variables, 0/145 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 7 (OVERLAPS) 0/292 variables, 0/145 constraints. Problems are: Problem set: 0 solved, 272 unsolved
No progress, stopping.
After SMT solving in domain Real declared 292/292 variables, and 145 constraints, problems are : Problem set: 0 solved, 272 unsolved in 13665 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 112/112 constraints, ReadFeed: 30/30 constraints, PredecessorRefiner: 272/272 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 272 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/111 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/111 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 2 (OVERLAPS) 180/291 variables, 111/114 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/291 variables, 30/144 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/291 variables, 32/176 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/291 variables, 0/176 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 6 (OVERLAPS) 1/292 variables, 1/177 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/292 variables, 240/417 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/292 variables, 0/417 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 9 (OVERLAPS) 0/292 variables, 0/417 constraints. Problems are: Problem set: 0 solved, 272 unsolved
No progress, stopping.
After SMT solving in domain Int declared 292/292 variables, and 417 constraints, problems are : Problem set: 0 solved, 272 unsolved in 19190 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 112/112 constraints, ReadFeed: 30/30 constraints, PredecessorRefiner: 272/272 constraints, Known Traps: 0/0 constraints]
After SMT, in 33217ms problems are : Problem set: 0 solved, 272 unsolved
Search for dead transitions found 0 dead transitions in 33223ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 33765 ms. Remains : 112/112 places, 274/274 transitions.
[2025-06-01 09:00:47] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
Found an invariant !
This invariant on transitions {25=1, 84=1, 138=1, 177=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {25=1, 84=1, 122=1, 172=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 6) seen :[8, 13, 5, 8, 5, 3]
Current structural bounds on expressions (after cover walk) : Max Seen:[42385, 39508, 599, 377, 76, 83] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 09:00:48] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 09:00:48] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[42385, 39508, 599, 377, 76, 83] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 1538 ms. (649 steps per ms)
BEST_FIRST walk for 6000005 steps (12 resets) in 7317 ms. (819 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[42385, 39508, 599, 377, 76, 83] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 09:00:56] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 09:00:56] [INFO ] Invariant cache hit.
[2025-06-01 09:00:56] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 09:00:57] [INFO ] [Real]Absence check using state equation in 57 ms returned sat
[2025-06-01 09:00:57] [INFO ] State equation strengthened by 30 read => feed constraints.
[2025-06-01 09:00:57] [INFO ] [Real]Added 30 Read/Feed constraints in 7 ms returned sat
[2025-06-01 09:00:57] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 09:00:57] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 09:00:57] [INFO ] [Nat]Absence check using state equation in 56 ms returned sat
[2025-06-01 09:00:57] [INFO ] [Nat]Added 30 Read/Feed constraints in 10 ms returned sat
[2025-06-01 09:00:57] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 14 ms.
[2025-06-01 09:00:57] [INFO ] Added : 7 causal constraints over 4 iterations in 74 ms. Result :sat
Minimization took 46 ms.
[2025-06-01 09:00:57] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 09:00:57] [INFO ] [Real]Absence check using state equation in 60 ms returned sat
[2025-06-01 09:00:57] [INFO ] [Real]Added 30 Read/Feed constraints in 8 ms returned sat
[2025-06-01 09:00:57] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 09:00:57] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 09:00:57] [INFO ] [Nat]Absence check using state equation in 57 ms returned sat
[2025-06-01 09:00:57] [INFO ] [Nat]Added 30 Read/Feed constraints in 8 ms returned sat
[2025-06-01 09:00:57] [INFO ] Deduced a trap composed of 33 places in 81 ms of which 1 ms to minimize.
[2025-06-01 09:00:57] [INFO ] Deduced a trap composed of 31 places in 93 ms of which 1 ms to minimize.
[2025-06-01 09:00:57] [INFO ] Deduced a trap composed of 22 places in 138 ms of which 3 ms to minimize.
[2025-06-01 09:00:57] [INFO ] Trap strengthening (SAT) tested/added 4/3 trap constraints in 363 ms
[2025-06-01 09:00:57] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 22 ms.
[2025-06-01 09:00:58] [INFO ] Added : 39 causal constraints over 8 iterations in 225 ms. Result :sat
Minimization took 95 ms.
[2025-06-01 09:00:58] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 09:00:58] [INFO ] [Real]Absence check using state equation in 89 ms returned sat
[2025-06-01 09:00:58] [INFO ] [Real]Added 30 Read/Feed constraints in 13 ms returned sat
[2025-06-01 09:00:58] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 09:00:58] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 09:00:58] [INFO ] [Nat]Absence check using state equation in 90 ms returned sat
[2025-06-01 09:00:58] [INFO ] [Nat]Added 30 Read/Feed constraints in 12 ms returned sat
[2025-06-01 09:00:58] [INFO ] Deduced a trap composed of 33 places in 113 ms of which 2 ms to minimize.
[2025-06-01 09:00:58] [INFO ] Deduced a trap composed of 31 places in 152 ms of which 6 ms to minimize.
[2025-06-01 09:00:59] [INFO ] Deduced a trap composed of 22 places in 129 ms of which 3 ms to minimize.
[2025-06-01 09:00:59] [INFO ] Deduced a trap composed of 24 places in 150 ms of which 2 ms to minimize.
[2025-06-01 09:00:59] [INFO ] Trap strengthening (SAT) tested/added 5/4 trap constraints in 616 ms
[2025-06-01 09:00:59] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 22 ms.
[2025-06-01 09:00:59] [INFO ] Added : 19 causal constraints over 5 iterations in 157 ms. Result :sat
Minimization took 80 ms.
[2025-06-01 09:00:59] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 09:00:59] [INFO ] [Real]Absence check using state equation in 89 ms returned sat
[2025-06-01 09:00:59] [INFO ] [Real]Added 30 Read/Feed constraints in 9 ms returned sat
[2025-06-01 09:00:59] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 09:00:59] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 09:00:59] [INFO ] [Nat]Absence check using state equation in 98 ms returned sat
[2025-06-01 09:00:59] [INFO ] [Nat]Added 30 Read/Feed constraints in 9 ms returned sat
[2025-06-01 09:00:59] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 23 ms.
[2025-06-01 09:01:00] [INFO ] Deduced a trap composed of 25 places in 138 ms of which 2 ms to minimize.
[2025-06-01 09:01:00] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 180 ms
[2025-06-01 09:01:00] [INFO ] Added : 9 causal constraints over 5 iterations in 339 ms. Result :sat
Minimization took 72 ms.
[2025-06-01 09:01:00] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 09:01:00] [INFO ] [Real]Absence check using state equation in 86 ms returned sat
[2025-06-01 09:01:00] [INFO ] [Real]Added 30 Read/Feed constraints in 13 ms returned sat
[2025-06-01 09:01:00] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 09:01:00] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 09:01:00] [INFO ] [Nat]Absence check using state equation in 89 ms returned sat
[2025-06-01 09:01:00] [INFO ] [Nat]Added 30 Read/Feed constraints in 13 ms returned sat
[2025-06-01 09:01:00] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 22 ms.
[2025-06-01 09:01:00] [INFO ] Added : 36 causal constraints over 10 iterations in 272 ms. Result :sat
Minimization took 91 ms.
[2025-06-01 09:01:01] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 09:01:01] [INFO ] [Real]Absence check using state equation in 90 ms returned sat
[2025-06-01 09:01:01] [INFO ] [Real]Added 30 Read/Feed constraints in 17 ms returned sat
[2025-06-01 09:01:01] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 09:01:01] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 09:01:01] [INFO ] [Nat]Absence check using state equation in 89 ms returned sat
[2025-06-01 09:01:01] [INFO ] [Nat]Added 30 Read/Feed constraints in 15 ms returned sat
[2025-06-01 09:01:01] [INFO ] Deduced a trap composed of 30 places in 116 ms of which 2 ms to minimize.
[2025-06-01 09:01:01] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 151 ms
[2025-06-01 09:01:01] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 26 ms.
[2025-06-01 09:01:01] [INFO ] Added : 6 causal constraints over 2 iterations in 93 ms. Result :sat
Minimization took 71 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[42385, 39508, 599, 377, 76, 83] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[42412, 39508, 599, 377, 76, 83] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Support contains 6 out of 112 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 112/112 places, 274/274 transitions.
Applied a total of 0 rules in 7 ms. Remains 112 /112 variables (removed 0) and now considering 274/274 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 7 ms. Remains : 112/112 places, 274/274 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 112/112 places, 274/274 transitions.
Applied a total of 0 rules in 7 ms. Remains 112 /112 variables (removed 0) and now considering 274/274 (removed 0) transitions.
[2025-06-01 09:02:06] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 09:02:06] [INFO ] Invariant cache hit.
[2025-06-01 09:02:06] [INFO ] Implicit Places using invariants in 140 ms returned []
[2025-06-01 09:02:06] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 09:02:06] [INFO ] Invariant cache hit.
[2025-06-01 09:02:06] [INFO ] State equation strengthened by 30 read => feed constraints.
[2025-06-01 09:02:06] [INFO ] Implicit Places using invariants and state equation in 224 ms returned []
Implicit Place search using SMT with State Equation took 384 ms to find 0 implicit places.
[2025-06-01 09:02:06] [INFO ] Redundant transitions in 1 ms returned []
Running 272 sub problems to find dead transitions.
[2025-06-01 09:02:06] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 09:02:06] [INFO ] Invariant cache hit.
[2025-06-01 09:02:06] [INFO ] State equation strengthened by 30 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/111 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/111 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 2 (OVERLAPS) 180/291 variables, 111/114 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/291 variables, 30/144 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/291 variables, 0/144 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 5 (OVERLAPS) 1/292 variables, 1/145 constraints. Problems are: Problem set: 0 solved, 272 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/292 variables, 0/145 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 7 (OVERLAPS) 0/292 variables, 0/145 constraints. Problems are: Problem set: 0 solved, 272 unsolved
No progress, stopping.
After SMT solving in domain Real declared 292/292 variables, and 145 constraints, problems are : Problem set: 0 solved, 272 unsolved in 13151 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 112/112 constraints, ReadFeed: 30/30 constraints, PredecessorRefiner: 272/272 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 272 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/111 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/111 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 2 (OVERLAPS) 180/291 variables, 111/114 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/291 variables, 30/144 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/291 variables, 32/176 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/291 variables, 0/176 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 6 (OVERLAPS) 1/292 variables, 1/177 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/292 variables, 240/417 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/292 variables, 0/417 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 9 (OVERLAPS) 0/292 variables, 0/417 constraints. Problems are: Problem set: 0 solved, 272 unsolved
No progress, stopping.
After SMT solving in domain Int declared 292/292 variables, and 417 constraints, problems are : Problem set: 0 solved, 272 unsolved in 21981 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 112/112 constraints, ReadFeed: 30/30 constraints, PredecessorRefiner: 272/272 constraints, Known Traps: 0/0 constraints]
After SMT, in 35480ms problems are : Problem set: 0 solved, 272 unsolved
Search for dead transitions found 0 dead transitions in 35487ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 35895 ms. Remains : 112/112 places, 274/274 transitions.
[2025-06-01 09:02:42] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
Found an invariant !
This invariant on transitions {25=1, 84=1, 138=1, 177=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {25=1, 84=1, 122=1, 172=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 66 ms. (steps per millisecond=151 ) properties (out of 6) seen :[13, 14, 8, 6, 4, 3]
Current structural bounds on expressions (after cover walk) : Max Seen:[42412, 39508, 599, 377, 76, 83] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 09:02:42] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 09:02:42] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[42412, 39508, 599, 377, 76, 83] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 1788 ms. (558 steps per ms)
BEST_FIRST walk for 6000006 steps (12 resets) in 7386 ms. (812 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[42412, 39508, 599, 377, 77, 83] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 09:02:51] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 09:02:51] [INFO ] Invariant cache hit.
[2025-06-01 09:02:51] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 09:02:51] [INFO ] [Real]Absence check using state equation in 59 ms returned sat
[2025-06-01 09:02:51] [INFO ] State equation strengthened by 30 read => feed constraints.
[2025-06-01 09:02:51] [INFO ] [Real]Added 30 Read/Feed constraints in 10 ms returned sat
[2025-06-01 09:02:51] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 09:02:51] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 09:02:51] [INFO ] [Nat]Absence check using state equation in 84 ms returned sat
[2025-06-01 09:02:51] [INFO ] [Nat]Added 30 Read/Feed constraints in 9 ms returned sat
[2025-06-01 09:02:51] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 22 ms.
[2025-06-01 09:02:52] [INFO ] Added : 7 causal constraints over 4 iterations in 122 ms. Result :sat
Minimization took 65 ms.
[2025-06-01 09:02:52] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 09:02:52] [INFO ] [Real]Absence check using state equation in 88 ms returned sat
[2025-06-01 09:02:52] [INFO ] [Real]Added 30 Read/Feed constraints in 14 ms returned sat
[2025-06-01 09:02:52] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 09:02:52] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 09:02:52] [INFO ] [Nat]Absence check using state equation in 96 ms returned sat
[2025-06-01 09:02:52] [INFO ] [Nat]Added 30 Read/Feed constraints in 13 ms returned sat
[2025-06-01 09:02:52] [INFO ] Deduced a trap composed of 33 places in 120 ms of which 2 ms to minimize.
[2025-06-01 09:02:52] [INFO ] Deduced a trap composed of 31 places in 127 ms of which 3 ms to minimize.
[2025-06-01 09:02:52] [INFO ] Deduced a trap composed of 22 places in 135 ms of which 4 ms to minimize.
[2025-06-01 09:02:52] [INFO ] Trap strengthening (SAT) tested/added 4/3 trap constraints in 441 ms
[2025-06-01 09:02:52] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 23 ms.
[2025-06-01 09:02:53] [INFO ] Added : 39 causal constraints over 8 iterations in 237 ms. Result :sat
Minimization took 101 ms.
[2025-06-01 09:02:53] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 09:02:53] [INFO ] [Real]Absence check using state equation in 91 ms returned sat
[2025-06-01 09:02:53] [INFO ] [Real]Added 30 Read/Feed constraints in 12 ms returned sat
[2025-06-01 09:02:53] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 09:02:53] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 09:02:53] [INFO ] [Nat]Absence check using state equation in 91 ms returned sat
[2025-06-01 09:02:53] [INFO ] [Nat]Added 30 Read/Feed constraints in 12 ms returned sat
[2025-06-01 09:02:53] [INFO ] Deduced a trap composed of 33 places in 118 ms of which 4 ms to minimize.
[2025-06-01 09:02:53] [INFO ] Deduced a trap composed of 31 places in 163 ms of which 3 ms to minimize.
[2025-06-01 09:02:54] [INFO ] Deduced a trap composed of 22 places in 145 ms of which 2 ms to minimize.
[2025-06-01 09:02:54] [INFO ] Deduced a trap composed of 24 places in 127 ms of which 2 ms to minimize.
[2025-06-01 09:02:54] [INFO ] Trap strengthening (SAT) tested/added 5/4 trap constraints in 636 ms
[2025-06-01 09:02:54] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 21 ms.
[2025-06-01 09:02:54] [INFO ] Added : 19 causal constraints over 5 iterations in 164 ms. Result :sat
Minimization took 78 ms.
[2025-06-01 09:02:54] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 09:02:54] [INFO ] [Real]Absence check using state equation in 92 ms returned sat
[2025-06-01 09:02:54] [INFO ] [Real]Added 30 Read/Feed constraints in 9 ms returned sat
[2025-06-01 09:02:54] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 09:02:54] [INFO ] [Nat]Absence check using 3 positive place invariants in 5 ms returned sat
[2025-06-01 09:02:54] [INFO ] [Nat]Absence check using state equation in 87 ms returned sat
[2025-06-01 09:02:54] [INFO ] [Nat]Added 30 Read/Feed constraints in 9 ms returned sat
[2025-06-01 09:02:54] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 23 ms.
[2025-06-01 09:02:55] [INFO ] Deduced a trap composed of 25 places in 142 ms of which 2 ms to minimize.
[2025-06-01 09:02:55] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 180 ms
[2025-06-01 09:02:55] [INFO ] Added : 9 causal constraints over 5 iterations in 327 ms. Result :sat
Minimization took 70 ms.
[2025-06-01 09:02:55] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 09:02:55] [INFO ] [Real]Absence check using state equation in 101 ms returned sat
[2025-06-01 09:02:55] [INFO ] [Real]Added 30 Read/Feed constraints in 12 ms returned sat
[2025-06-01 09:02:55] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 09:02:55] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 09:02:55] [INFO ] [Nat]Absence check using state equation in 95 ms returned sat
[2025-06-01 09:02:55] [INFO ] [Nat]Added 30 Read/Feed constraints in 12 ms returned sat
[2025-06-01 09:02:55] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 23 ms.
[2025-06-01 09:02:55] [INFO ] Added : 36 causal constraints over 10 iterations in 261 ms. Result :sat
Minimization took 89 ms.
[2025-06-01 09:02:56] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 09:02:56] [INFO ] [Real]Absence check using state equation in 94 ms returned sat
[2025-06-01 09:02:56] [INFO ] [Real]Added 30 Read/Feed constraints in 16 ms returned sat
[2025-06-01 09:02:56] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 09:02:56] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 09:02:56] [INFO ] [Nat]Absence check using state equation in 90 ms returned sat
[2025-06-01 09:02:56] [INFO ] [Nat]Added 30 Read/Feed constraints in 14 ms returned sat
[2025-06-01 09:02:56] [INFO ] Deduced a trap composed of 30 places in 118 ms of which 2 ms to minimize.
[2025-06-01 09:02:56] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 142 ms
[2025-06-01 09:02:56] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 22 ms.
[2025-06-01 09:02:56] [INFO ] Added : 6 causal constraints over 2 iterations in 88 ms. Result :sat
Minimization took 69 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[42412, 39508, 599, 377, 77, 83] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[42444, 39508, 599, 377, 77, 83] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Support contains 6 out of 112 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 112/112 places, 274/274 transitions.
Applied a total of 0 rules in 4 ms. Remains 112 /112 variables (removed 0) and now considering 274/274 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 5 ms. Remains : 112/112 places, 274/274 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 112/112 places, 274/274 transitions.
Applied a total of 0 rules in 4 ms. Remains 112 /112 variables (removed 0) and now considering 274/274 (removed 0) transitions.
[2025-06-01 09:04:01] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 09:04:01] [INFO ] Invariant cache hit.
[2025-06-01 09:04:01] [INFO ] Implicit Places using invariants in 123 ms returned []
[2025-06-01 09:04:01] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 09:04:01] [INFO ] Invariant cache hit.
[2025-06-01 09:04:02] [INFO ] State equation strengthened by 30 read => feed constraints.
[2025-06-01 09:04:02] [INFO ] Implicit Places using invariants and state equation in 222 ms returned []
Implicit Place search using SMT with State Equation took 369 ms to find 0 implicit places.
[2025-06-01 09:04:02] [INFO ] Redundant transitions in 2 ms returned []
Running 272 sub problems to find dead transitions.
[2025-06-01 09:04:02] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 09:04:02] [INFO ] Invariant cache hit.
[2025-06-01 09:04:02] [INFO ] State equation strengthened by 30 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/111 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/111 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 2 (OVERLAPS) 180/291 variables, 111/114 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/291 variables, 30/144 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/291 variables, 0/144 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 5 (OVERLAPS) 1/292 variables, 1/145 constraints. Problems are: Problem set: 0 solved, 272 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/292 variables, 0/145 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 7 (OVERLAPS) 0/292 variables, 0/145 constraints. Problems are: Problem set: 0 solved, 272 unsolved
No progress, stopping.
After SMT solving in domain Real declared 292/292 variables, and 145 constraints, problems are : Problem set: 0 solved, 272 unsolved in 13385 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 112/112 constraints, ReadFeed: 30/30 constraints, PredecessorRefiner: 272/272 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 272 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/111 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/111 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 2 (OVERLAPS) 180/291 variables, 111/114 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/291 variables, 30/144 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/291 variables, 32/176 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/291 variables, 0/176 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 6 (OVERLAPS) 1/292 variables, 1/177 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/292 variables, 240/417 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/292 variables, 0/417 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 9 (OVERLAPS) 0/292 variables, 0/417 constraints. Problems are: Problem set: 0 solved, 272 unsolved
No progress, stopping.
After SMT solving in domain Int declared 292/292 variables, and 417 constraints, problems are : Problem set: 0 solved, 272 unsolved in 19046 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 112/112 constraints, ReadFeed: 30/30 constraints, PredecessorRefiner: 272/272 constraints, Known Traps: 0/0 constraints]
After SMT, in 32758ms problems are : Problem set: 0 solved, 272 unsolved
Search for dead transitions found 0 dead transitions in 32761ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 33149 ms. Remains : 112/112 places, 274/274 transitions.
[2025-06-01 09:04:34] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
Found an invariant !
This invariant on transitions {25=1, 84=1, 138=1, 177=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {25=1, 84=1, 122=1, 172=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 38 ms. (steps per millisecond=263 ) properties (out of 6) seen :[11, 17, 13, 8, 3, 3]
Current structural bounds on expressions (after cover walk) : Max Seen:[42444, 39508, 599, 377, 77, 83] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 09:04:35] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 09:04:35] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[42444, 39508, 599, 377, 77, 83] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 1661 ms. (601 steps per ms)
BEST_FIRST walk for 6000006 steps (12 resets) in 6715 ms. (893 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[42444, 39508, 599, 377, 77, 83] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 09:04:43] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 09:04:43] [INFO ] Invariant cache hit.
[2025-06-01 09:04:43] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 09:04:43] [INFO ] [Real]Absence check using state equation in 56 ms returned sat
[2025-06-01 09:04:43] [INFO ] State equation strengthened by 30 read => feed constraints.
[2025-06-01 09:04:43] [INFO ] [Real]Added 30 Read/Feed constraints in 6 ms returned sat
[2025-06-01 09:04:43] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 09:04:43] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 09:04:43] [INFO ] [Nat]Absence check using state equation in 62 ms returned sat
[2025-06-01 09:04:43] [INFO ] [Nat]Added 30 Read/Feed constraints in 8 ms returned sat
[2025-06-01 09:04:43] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 16 ms.
[2025-06-01 09:04:43] [INFO ] Added : 7 causal constraints over 4 iterations in 87 ms. Result :sat
Minimization took 48 ms.
[2025-06-01 09:04:43] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 09:04:43] [INFO ] [Real]Absence check using state equation in 92 ms returned sat
[2025-06-01 09:04:44] [INFO ] [Real]Added 30 Read/Feed constraints in 12 ms returned sat
[2025-06-01 09:04:44] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 09:04:44] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 09:04:44] [INFO ] [Nat]Absence check using state equation in 75 ms returned sat
[2025-06-01 09:04:44] [INFO ] [Nat]Added 30 Read/Feed constraints in 10 ms returned sat
[2025-06-01 09:04:44] [INFO ] Deduced a trap composed of 33 places in 119 ms of which 3 ms to minimize.
[2025-06-01 09:04:44] [INFO ] Deduced a trap composed of 31 places in 142 ms of which 2 ms to minimize.
[2025-06-01 09:04:44] [INFO ] Deduced a trap composed of 22 places in 134 ms of which 3 ms to minimize.
[2025-06-01 09:04:44] [INFO ] Trap strengthening (SAT) tested/added 4/3 trap constraints in 434 ms
[2025-06-01 09:04:44] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 19 ms.
[2025-06-01 09:04:44] [INFO ] Added : 39 causal constraints over 8 iterations in 178 ms. Result :sat
Minimization took 62 ms.
[2025-06-01 09:04:44] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 09:04:44] [INFO ] [Real]Absence check using state equation in 88 ms returned sat
[2025-06-01 09:04:45] [INFO ] [Real]Added 30 Read/Feed constraints in 12 ms returned sat
[2025-06-01 09:04:45] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 09:04:45] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 09:04:45] [INFO ] [Nat]Absence check using state equation in 75 ms returned sat
[2025-06-01 09:04:45] [INFO ] [Nat]Added 30 Read/Feed constraints in 9 ms returned sat
[2025-06-01 09:04:45] [INFO ] Deduced a trap composed of 33 places in 149 ms of which 2 ms to minimize.
[2025-06-01 09:04:45] [INFO ] Deduced a trap composed of 31 places in 150 ms of which 3 ms to minimize.
[2025-06-01 09:04:45] [INFO ] Deduced a trap composed of 22 places in 125 ms of which 2 ms to minimize.
[2025-06-01 09:04:45] [INFO ] Deduced a trap composed of 24 places in 115 ms of which 2 ms to minimize.
[2025-06-01 09:04:45] [INFO ] Trap strengthening (SAT) tested/added 5/4 trap constraints in 590 ms
[2025-06-01 09:04:45] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 19 ms.
[2025-06-01 09:04:45] [INFO ] Added : 19 causal constraints over 5 iterations in 134 ms. Result :sat
Minimization took 81 ms.
[2025-06-01 09:04:46] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 09:04:46] [INFO ] [Real]Absence check using state equation in 77 ms returned sat
[2025-06-01 09:04:46] [INFO ] [Real]Added 30 Read/Feed constraints in 7 ms returned sat
[2025-06-01 09:04:46] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 09:04:46] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 09:04:46] [INFO ] [Nat]Absence check using state equation in 89 ms returned sat
[2025-06-01 09:04:46] [INFO ] [Nat]Added 30 Read/Feed constraints in 10 ms returned sat
[2025-06-01 09:04:46] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 22 ms.
[2025-06-01 09:04:46] [INFO ] Deduced a trap composed of 25 places in 89 ms of which 1 ms to minimize.
[2025-06-01 09:04:46] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 123 ms
[2025-06-01 09:04:46] [INFO ] Added : 9 causal constraints over 5 iterations in 267 ms. Result :sat
Minimization took 69 ms.
[2025-06-01 09:04:46] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 09:04:46] [INFO ] [Real]Absence check using state equation in 93 ms returned sat
[2025-06-01 09:04:46] [INFO ] [Real]Added 30 Read/Feed constraints in 12 ms returned sat
[2025-06-01 09:04:46] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 09:04:46] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 09:04:46] [INFO ] [Nat]Absence check using state equation in 92 ms returned sat
[2025-06-01 09:04:46] [INFO ] [Nat]Added 30 Read/Feed constraints in 12 ms returned sat
[2025-06-01 09:04:47] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 23 ms.
[2025-06-01 09:04:47] [INFO ] Added : 36 causal constraints over 10 iterations in 257 ms. Result :sat
Minimization took 88 ms.
[2025-06-01 09:04:47] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 09:04:47] [INFO ] [Real]Absence check using state equation in 78 ms returned sat
[2025-06-01 09:04:47] [INFO ] [Real]Added 30 Read/Feed constraints in 12 ms returned sat
[2025-06-01 09:04:47] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 09:04:47] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 09:04:47] [INFO ] [Nat]Absence check using state equation in 90 ms returned sat
[2025-06-01 09:04:47] [INFO ] [Nat]Added 30 Read/Feed constraints in 15 ms returned sat
[2025-06-01 09:04:47] [INFO ] Deduced a trap composed of 30 places in 92 ms of which 2 ms to minimize.
[2025-06-01 09:04:47] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 113 ms
[2025-06-01 09:04:47] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 20 ms.
[2025-06-01 09:04:47] [INFO ] Added : 6 causal constraints over 2 iterations in 86 ms. Result :sat
Minimization took 69 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[42444, 39508, 599, 377, 77, 83] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[42645, 39508, 599, 377, 77, 83] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Support contains 6 out of 112 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 112/112 places, 274/274 transitions.
Applied a total of 0 rules in 5 ms. Remains 112 /112 variables (removed 0) and now considering 274/274 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 5 ms. Remains : 112/112 places, 274/274 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 112/112 places, 274/274 transitions.
Applied a total of 0 rules in 5 ms. Remains 112 /112 variables (removed 0) and now considering 274/274 (removed 0) transitions.
[2025-06-01 09:05:52] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 09:05:52] [INFO ] Invariant cache hit.
[2025-06-01 09:05:52] [INFO ] Implicit Places using invariants in 138 ms returned []
[2025-06-01 09:05:52] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 09:05:52] [INFO ] Invariant cache hit.
[2025-06-01 09:05:52] [INFO ] State equation strengthened by 30 read => feed constraints.
[2025-06-01 09:05:53] [INFO ] Implicit Places using invariants and state equation in 229 ms returned []
Implicit Place search using SMT with State Equation took 377 ms to find 0 implicit places.
[2025-06-01 09:05:53] [INFO ] Redundant transitions in 1 ms returned []
Running 272 sub problems to find dead transitions.
[2025-06-01 09:05:53] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 09:05:53] [INFO ] Invariant cache hit.
[2025-06-01 09:05:53] [INFO ] State equation strengthened by 30 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/111 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/111 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 2 (OVERLAPS) 180/291 variables, 111/114 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/291 variables, 30/144 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/291 variables, 0/144 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 5 (OVERLAPS) 1/292 variables, 1/145 constraints. Problems are: Problem set: 0 solved, 272 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/292 variables, 0/145 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 7 (OVERLAPS) 0/292 variables, 0/145 constraints. Problems are: Problem set: 0 solved, 272 unsolved
No progress, stopping.
After SMT solving in domain Real declared 292/292 variables, and 145 constraints, problems are : Problem set: 0 solved, 272 unsolved in 12631 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 112/112 constraints, ReadFeed: 30/30 constraints, PredecessorRefiner: 272/272 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 272 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/111 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/111 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 2 (OVERLAPS) 180/291 variables, 111/114 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/291 variables, 30/144 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/291 variables, 32/176 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/291 variables, 0/176 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 6 (OVERLAPS) 1/292 variables, 1/177 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/292 variables, 240/417 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/292 variables, 0/417 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 9 (OVERLAPS) 0/292 variables, 0/417 constraints. Problems are: Problem set: 0 solved, 272 unsolved
No progress, stopping.
After SMT solving in domain Int declared 292/292 variables, and 417 constraints, problems are : Problem set: 0 solved, 272 unsolved in 20138 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 112/112 constraints, ReadFeed: 30/30 constraints, PredecessorRefiner: 272/272 constraints, Known Traps: 0/0 constraints]
After SMT, in 32990ms problems are : Problem set: 0 solved, 272 unsolved
Search for dead transitions found 0 dead transitions in 32993ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 33389 ms. Remains : 112/112 places, 274/274 transitions.
[2025-06-01 09:06:26] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
Found an invariant !
This invariant on transitions {25=1, 84=1, 138=1, 177=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {25=1, 84=1, 122=1, 172=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 6) seen :[8, 19, 10, 11, 6, 4]
Current structural bounds on expressions (after cover walk) : Max Seen:[42645, 39508, 599, 377, 77, 83] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 09:06:26] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 09:06:26] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[42645, 39508, 599, 377, 77, 83] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 1728 ms. (578 steps per ms)
BEST_FIRST walk for 6000006 steps (12 resets) in 7138 ms. (840 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[42645, 39508, 599, 377, 77, 83] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 09:06:35] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 09:06:35] [INFO ] Invariant cache hit.
[2025-06-01 09:06:35] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 09:06:35] [INFO ] [Real]Absence check using state equation in 53 ms returned sat
[2025-06-01 09:06:35] [INFO ] State equation strengthened by 30 read => feed constraints.
[2025-06-01 09:06:35] [INFO ] [Real]Added 30 Read/Feed constraints in 12 ms returned sat
[2025-06-01 09:06:35] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 09:06:35] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 09:06:35] [INFO ] [Nat]Absence check using state equation in 76 ms returned sat
[2025-06-01 09:06:35] [INFO ] [Nat]Added 30 Read/Feed constraints in 9 ms returned sat
[2025-06-01 09:06:35] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 17 ms.
[2025-06-01 09:06:35] [INFO ] Added : 7 causal constraints over 4 iterations in 114 ms. Result :sat
Minimization took 64 ms.
[2025-06-01 09:06:35] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 09:06:35] [INFO ] [Real]Absence check using state equation in 75 ms returned sat
[2025-06-01 09:06:35] [INFO ] [Real]Added 30 Read/Feed constraints in 16 ms returned sat
[2025-06-01 09:06:35] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 09:06:35] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 09:06:35] [INFO ] [Nat]Absence check using state equation in 94 ms returned sat
[2025-06-01 09:06:35] [INFO ] [Nat]Added 30 Read/Feed constraints in 12 ms returned sat
[2025-06-01 09:06:36] [INFO ] Deduced a trap composed of 33 places in 135 ms of which 2 ms to minimize.
[2025-06-01 09:06:36] [INFO ] Deduced a trap composed of 31 places in 109 ms of which 2 ms to minimize.
[2025-06-01 09:06:36] [INFO ] Deduced a trap composed of 22 places in 117 ms of which 2 ms to minimize.
[2025-06-01 09:06:36] [INFO ] Trap strengthening (SAT) tested/added 4/3 trap constraints in 402 ms
[2025-06-01 09:06:36] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 17 ms.
[2025-06-01 09:06:36] [INFO ] Added : 39 causal constraints over 8 iterations in 194 ms. Result :sat
Minimization took 87 ms.
[2025-06-01 09:06:36] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 09:06:36] [INFO ] [Real]Absence check using state equation in 80 ms returned sat
[2025-06-01 09:06:36] [INFO ] [Real]Added 30 Read/Feed constraints in 10 ms returned sat
[2025-06-01 09:06:36] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 09:06:36] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 09:06:36] [INFO ] [Nat]Absence check using state equation in 84 ms returned sat
[2025-06-01 09:06:36] [INFO ] [Nat]Added 30 Read/Feed constraints in 11 ms returned sat
[2025-06-01 09:06:36] [INFO ] Deduced a trap composed of 33 places in 93 ms of which 2 ms to minimize.
[2025-06-01 09:06:37] [INFO ] Deduced a trap composed of 31 places in 109 ms of which 2 ms to minimize.
[2025-06-01 09:06:37] [INFO ] Deduced a trap composed of 22 places in 112 ms of which 2 ms to minimize.
[2025-06-01 09:06:37] [INFO ] Deduced a trap composed of 24 places in 113 ms of which 2 ms to minimize.
[2025-06-01 09:06:37] [INFO ] Trap strengthening (SAT) tested/added 5/4 trap constraints in 476 ms
[2025-06-01 09:06:37] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 15 ms.
[2025-06-01 09:06:37] [INFO ] Added : 19 causal constraints over 5 iterations in 130 ms. Result :sat
Minimization took 78 ms.
[2025-06-01 09:06:37] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 09:06:37] [INFO ] [Real]Absence check using state equation in 79 ms returned sat
[2025-06-01 09:06:37] [INFO ] [Real]Added 30 Read/Feed constraints in 8 ms returned sat
[2025-06-01 09:06:37] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 09:06:37] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 09:06:37] [INFO ] [Nat]Absence check using state equation in 79 ms returned sat
[2025-06-01 09:06:37] [INFO ] [Nat]Added 30 Read/Feed constraints in 8 ms returned sat
[2025-06-01 09:06:37] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 18 ms.
[2025-06-01 09:06:38] [INFO ] Deduced a trap composed of 25 places in 94 ms of which 2 ms to minimize.
[2025-06-01 09:06:38] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 118 ms
[2025-06-01 09:06:38] [INFO ] Added : 9 causal constraints over 5 iterations in 245 ms. Result :sat
Minimization took 70 ms.
[2025-06-01 09:06:38] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 09:06:38] [INFO ] [Real]Absence check using state equation in 80 ms returned sat
[2025-06-01 09:06:38] [INFO ] [Real]Added 30 Read/Feed constraints in 12 ms returned sat
[2025-06-01 09:06:38] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 09:06:38] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 09:06:38] [INFO ] [Nat]Absence check using state equation in 81 ms returned sat
[2025-06-01 09:06:38] [INFO ] [Nat]Added 30 Read/Feed constraints in 11 ms returned sat
[2025-06-01 09:06:38] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 17 ms.
[2025-06-01 09:06:38] [INFO ] Added : 36 causal constraints over 10 iterations in 221 ms. Result :sat
Minimization took 88 ms.
[2025-06-01 09:06:38] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 09:06:38] [INFO ] [Real]Absence check using state equation in 80 ms returned sat
[2025-06-01 09:06:38] [INFO ] [Real]Added 30 Read/Feed constraints in 15 ms returned sat
[2025-06-01 09:06:38] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 09:06:39] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 09:06:39] [INFO ] [Nat]Absence check using state equation in 81 ms returned sat
[2025-06-01 09:06:39] [INFO ] [Nat]Added 30 Read/Feed constraints in 14 ms returned sat
[2025-06-01 09:06:39] [INFO ] Deduced a trap composed of 30 places in 72 ms of which 1 ms to minimize.
[2025-06-01 09:06:39] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 93 ms
[2025-06-01 09:06:39] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 17 ms.
[2025-06-01 09:06:39] [INFO ] Added : 6 causal constraints over 2 iterations in 74 ms. Result :sat
Minimization took 68 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[42645, 39508, 599, 377, 77, 83] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[66005, 49869, 599, 377, 77, 83] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Support contains 6 out of 112 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 112/112 places, 274/274 transitions.
Applied a total of 0 rules in 5 ms. Remains 112 /112 variables (removed 0) and now considering 274/274 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 5 ms. Remains : 112/112 places, 274/274 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 112/112 places, 274/274 transitions.
Applied a total of 0 rules in 4 ms. Remains 112 /112 variables (removed 0) and now considering 274/274 (removed 0) transitions.
[2025-06-01 09:07:44] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 09:07:44] [INFO ] Invariant cache hit.
[2025-06-01 09:07:44] [INFO ] Implicit Places using invariants in 129 ms returned []
[2025-06-01 09:07:44] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 09:07:44] [INFO ] Invariant cache hit.
[2025-06-01 09:07:44] [INFO ] State equation strengthened by 30 read => feed constraints.
[2025-06-01 09:07:44] [INFO ] Implicit Places using invariants and state equation in 224 ms returned []
Implicit Place search using SMT with State Equation took 372 ms to find 0 implicit places.
[2025-06-01 09:07:44] [INFO ] Redundant transitions in 1 ms returned []
Running 272 sub problems to find dead transitions.
[2025-06-01 09:07:44] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 09:07:44] [INFO ] Invariant cache hit.
[2025-06-01 09:07:44] [INFO ] State equation strengthened by 30 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/111 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/111 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 2 (OVERLAPS) 180/291 variables, 111/114 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/291 variables, 30/144 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/291 variables, 0/144 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 5 (OVERLAPS) 1/292 variables, 1/145 constraints. Problems are: Problem set: 0 solved, 272 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/292 variables, 0/145 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 7 (OVERLAPS) 0/292 variables, 0/145 constraints. Problems are: Problem set: 0 solved, 272 unsolved
No progress, stopping.
After SMT solving in domain Real declared 292/292 variables, and 145 constraints, problems are : Problem set: 0 solved, 272 unsolved in 11733 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 112/112 constraints, ReadFeed: 30/30 constraints, PredecessorRefiner: 272/272 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 272 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/111 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/111 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 2 (OVERLAPS) 180/291 variables, 111/114 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/291 variables, 30/144 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/291 variables, 32/176 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/291 variables, 0/176 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 6 (OVERLAPS) 1/292 variables, 1/177 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/292 variables, 240/417 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/292 variables, 0/417 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 9 (OVERLAPS) 0/292 variables, 0/417 constraints. Problems are: Problem set: 0 solved, 272 unsolved
No progress, stopping.
After SMT solving in domain Int declared 292/292 variables, and 417 constraints, problems are : Problem set: 0 solved, 272 unsolved in 19011 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 112/112 constraints, ReadFeed: 30/30 constraints, PredecessorRefiner: 272/272 constraints, Known Traps: 0/0 constraints]
After SMT, in 31045ms problems are : Problem set: 0 solved, 272 unsolved
Search for dead transitions found 0 dead transitions in 31048ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 31434 ms. Remains : 112/112 places, 274/274 transitions.
[2025-06-01 09:08:15] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
Found an invariant !
This invariant on transitions {25=1, 84=1, 138=1, 177=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {25=1, 84=1, 122=1, 172=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 42 ms. (steps per millisecond=238 ) properties (out of 6) seen :[9, 15, 8, 12, 2, 2]
Current structural bounds on expressions (after cover walk) : Max Seen:[66005, 49869, 599, 377, 77, 83] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 09:08:15] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 09:08:15] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[66005, 49869, 599, 377, 77, 83] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 1630 ms. (613 steps per ms)
BEST_FIRST walk for 6000006 steps (12 resets) in 6973 ms. (860 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[66005, 49869, 599, 377, 77, 83] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 09:08:24] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 09:08:24] [INFO ] Invariant cache hit.
[2025-06-01 09:08:24] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 09:08:24] [INFO ] [Real]Absence check using state equation in 60 ms returned sat
[2025-06-01 09:08:24] [INFO ] State equation strengthened by 30 read => feed constraints.
[2025-06-01 09:08:24] [INFO ] [Real]Added 30 Read/Feed constraints in 6 ms returned sat
[2025-06-01 09:08:24] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 09:08:24] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 09:08:24] [INFO ] [Nat]Absence check using state equation in 56 ms returned sat
[2025-06-01 09:08:24] [INFO ] [Nat]Added 30 Read/Feed constraints in 6 ms returned sat
[2025-06-01 09:08:24] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 15 ms.
[2025-06-01 09:08:24] [INFO ] Added : 7 causal constraints over 4 iterations in 73 ms. Result :sat
Minimization took 63 ms.
[2025-06-01 09:08:24] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 09:08:24] [INFO ] [Real]Absence check using state equation in 106 ms returned sat
[2025-06-01 09:08:24] [INFO ] [Real]Added 30 Read/Feed constraints in 12 ms returned sat
[2025-06-01 09:08:25] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 09:08:25] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 09:08:25] [INFO ] [Nat]Absence check using state equation in 91 ms returned sat
[2025-06-01 09:08:25] [INFO ] [Nat]Added 30 Read/Feed constraints in 14 ms returned sat
[2025-06-01 09:08:25] [INFO ] Deduced a trap composed of 33 places in 118 ms of which 2 ms to minimize.
[2025-06-01 09:08:25] [INFO ] Deduced a trap composed of 31 places in 139 ms of which 2 ms to minimize.
[2025-06-01 09:08:25] [INFO ] Deduced a trap composed of 22 places in 134 ms of which 2 ms to minimize.
[2025-06-01 09:08:25] [INFO ] Trap strengthening (SAT) tested/added 4/3 trap constraints in 444 ms
[2025-06-01 09:08:25] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 22 ms.
[2025-06-01 09:08:25] [INFO ] Added : 39 causal constraints over 8 iterations in 228 ms. Result :sat
Minimization took 91 ms.
[2025-06-01 09:08:26] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 09:08:26] [INFO ] [Real]Absence check using state equation in 89 ms returned sat
[2025-06-01 09:08:26] [INFO ] [Real]Added 30 Read/Feed constraints in 12 ms returned sat
[2025-06-01 09:08:26] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 09:08:26] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 09:08:26] [INFO ] [Nat]Absence check using state equation in 94 ms returned sat
[2025-06-01 09:08:26] [INFO ] [Nat]Added 30 Read/Feed constraints in 12 ms returned sat
[2025-06-01 09:08:26] [INFO ] Deduced a trap composed of 33 places in 125 ms of which 3 ms to minimize.
[2025-06-01 09:08:26] [INFO ] Deduced a trap composed of 31 places in 143 ms of which 2 ms to minimize.
[2025-06-01 09:08:26] [INFO ] Deduced a trap composed of 22 places in 151 ms of which 3 ms to minimize.
[2025-06-01 09:08:26] [INFO ] Deduced a trap composed of 24 places in 134 ms of which 2 ms to minimize.
[2025-06-01 09:08:26] [INFO ] Trap strengthening (SAT) tested/added 5/4 trap constraints in 614 ms
[2025-06-01 09:08:26] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 23 ms.
[2025-06-01 09:08:27] [INFO ] Added : 19 causal constraints over 5 iterations in 168 ms. Result :sat
Minimization took 79 ms.
[2025-06-01 09:08:27] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 09:08:27] [INFO ] [Real]Absence check using state equation in 92 ms returned sat
[2025-06-01 09:08:27] [INFO ] [Real]Added 30 Read/Feed constraints in 10 ms returned sat
[2025-06-01 09:08:27] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 09:08:27] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 09:08:27] [INFO ] [Nat]Absence check using state equation in 88 ms returned sat
[2025-06-01 09:08:27] [INFO ] [Nat]Added 30 Read/Feed constraints in 8 ms returned sat
[2025-06-01 09:08:27] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 27 ms.
[2025-06-01 09:08:27] [INFO ] Deduced a trap composed of 25 places in 131 ms of which 2 ms to minimize.
[2025-06-01 09:08:27] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 171 ms
[2025-06-01 09:08:27] [INFO ] Added : 9 causal constraints over 5 iterations in 331 ms. Result :sat
Minimization took 70 ms.
[2025-06-01 09:08:28] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 09:08:28] [INFO ] [Real]Absence check using state equation in 87 ms returned sat
[2025-06-01 09:08:28] [INFO ] [Real]Added 30 Read/Feed constraints in 13 ms returned sat
[2025-06-01 09:08:28] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 09:08:28] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 09:08:28] [INFO ] [Nat]Absence check using state equation in 88 ms returned sat
[2025-06-01 09:08:28] [INFO ] [Nat]Added 30 Read/Feed constraints in 13 ms returned sat
[2025-06-01 09:08:28] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 22 ms.
[2025-06-01 09:08:28] [INFO ] Added : 36 causal constraints over 10 iterations in 264 ms. Result :sat
Minimization took 89 ms.
[2025-06-01 09:08:28] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 09:08:28] [INFO ] [Real]Absence check using state equation in 88 ms returned sat
[2025-06-01 09:08:28] [INFO ] [Real]Added 30 Read/Feed constraints in 17 ms returned sat
[2025-06-01 09:08:28] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 09:08:28] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 09:08:29] [INFO ] [Nat]Absence check using state equation in 88 ms returned sat
[2025-06-01 09:08:29] [INFO ] [Nat]Added 30 Read/Feed constraints in 16 ms returned sat
[2025-06-01 09:08:29] [INFO ] Deduced a trap composed of 30 places in 153 ms of which 3 ms to minimize.
[2025-06-01 09:08:29] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 190 ms
[2025-06-01 09:08:29] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 25 ms.
[2025-06-01 09:08:29] [INFO ] Added : 6 causal constraints over 2 iterations in 86 ms. Result :sat
Minimization took 64 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[66005, 49869, 599, 377, 77, 83] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[66046, 49869, 599, 377, 77, 83] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Support contains 6 out of 112 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 112/112 places, 274/274 transitions.
Applied a total of 0 rules in 4 ms. Remains 112 /112 variables (removed 0) and now considering 274/274 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 5 ms. Remains : 112/112 places, 274/274 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 112/112 places, 274/274 transitions.
Applied a total of 0 rules in 4 ms. Remains 112 /112 variables (removed 0) and now considering 274/274 (removed 0) transitions.
[2025-06-01 09:09:34] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 09:09:34] [INFO ] Invariant cache hit.
[2025-06-01 09:09:34] [INFO ] Implicit Places using invariants in 205 ms returned []
[2025-06-01 09:09:34] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 09:09:34] [INFO ] Invariant cache hit.
[2025-06-01 09:09:34] [INFO ] State equation strengthened by 30 read => feed constraints.
[2025-06-01 09:09:34] [INFO ] Implicit Places using invariants and state equation in 366 ms returned []
Implicit Place search using SMT with State Equation took 587 ms to find 0 implicit places.
[2025-06-01 09:09:34] [INFO ] Redundant transitions in 1 ms returned []
Running 272 sub problems to find dead transitions.
[2025-06-01 09:09:34] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 09:09:34] [INFO ] Invariant cache hit.
[2025-06-01 09:09:34] [INFO ] State equation strengthened by 30 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/111 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/111 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 2 (OVERLAPS) 180/291 variables, 111/114 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/291 variables, 30/144 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/291 variables, 0/144 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 5 (OVERLAPS) 1/292 variables, 1/145 constraints. Problems are: Problem set: 0 solved, 272 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/292 variables, 0/145 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 7 (OVERLAPS) 0/292 variables, 0/145 constraints. Problems are: Problem set: 0 solved, 272 unsolved
No progress, stopping.
After SMT solving in domain Real declared 292/292 variables, and 145 constraints, problems are : Problem set: 0 solved, 272 unsolved in 12804 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 112/112 constraints, ReadFeed: 30/30 constraints, PredecessorRefiner: 272/272 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 272 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/111 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/111 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 2 (OVERLAPS) 180/291 variables, 111/114 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/291 variables, 30/144 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/291 variables, 32/176 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/291 variables, 0/176 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 6 (OVERLAPS) 1/292 variables, 1/177 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/292 variables, 240/417 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/292 variables, 0/417 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 9 (OVERLAPS) 0/292 variables, 0/417 constraints. Problems are: Problem set: 0 solved, 272 unsolved
No progress, stopping.
After SMT solving in domain Int declared 292/292 variables, and 417 constraints, problems are : Problem set: 0 solved, 272 unsolved in 18875 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 112/112 constraints, ReadFeed: 30/30 constraints, PredecessorRefiner: 272/272 constraints, Known Traps: 0/0 constraints]
After SMT, in 32014ms problems are : Problem set: 0 solved, 272 unsolved
Search for dead transitions found 0 dead transitions in 32019ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 32626 ms. Remains : 112/112 places, 274/274 transitions.
[2025-06-01 09:10:06] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
Found an invariant !
This invariant on transitions {25=1, 84=1, 138=1, 177=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {25=1, 84=1, 122=1, 172=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 6) seen :[10, 21, 6, 6, 3, 2]
Current structural bounds on expressions (after cover walk) : Max Seen:[66046, 49869, 599, 377, 77, 83] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 09:10:06] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 09:10:06] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[66046, 49869, 599, 377, 77, 83] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 1657 ms. (603 steps per ms)
BEST_FIRST walk for 6000005 steps (12 resets) in 6891 ms. (870 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[66046, 49869, 599, 377, 77, 83] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 09:10:15] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 09:10:15] [INFO ] Invariant cache hit.
[2025-06-01 09:10:15] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 09:10:15] [INFO ] [Real]Absence check using state equation in 60 ms returned sat
[2025-06-01 09:10:15] [INFO ] State equation strengthened by 30 read => feed constraints.
[2025-06-01 09:10:15] [INFO ] [Real]Added 30 Read/Feed constraints in 6 ms returned sat
[2025-06-01 09:10:15] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 09:10:15] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 09:10:15] [INFO ] [Nat]Absence check using state equation in 58 ms returned sat
[2025-06-01 09:10:15] [INFO ] [Nat]Added 30 Read/Feed constraints in 6 ms returned sat
[2025-06-01 09:10:15] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 15 ms.
[2025-06-01 09:10:15] [INFO ] Added : 7 causal constraints over 4 iterations in 108 ms. Result :sat
Minimization took 74 ms.
[2025-06-01 09:10:15] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 09:10:16] [INFO ] [Real]Absence check using state equation in 91 ms returned sat
[2025-06-01 09:10:16] [INFO ] [Real]Added 30 Read/Feed constraints in 14 ms returned sat
[2025-06-01 09:10:16] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 09:10:16] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 09:10:16] [INFO ] [Nat]Absence check using state equation in 95 ms returned sat
[2025-06-01 09:10:16] [INFO ] [Nat]Added 30 Read/Feed constraints in 14 ms returned sat
[2025-06-01 09:10:16] [INFO ] Deduced a trap composed of 33 places in 88 ms of which 2 ms to minimize.
[2025-06-01 09:10:16] [INFO ] Deduced a trap composed of 31 places in 88 ms of which 2 ms to minimize.
[2025-06-01 09:10:16] [INFO ] Deduced a trap composed of 22 places in 88 ms of which 1 ms to minimize.
[2025-06-01 09:10:16] [INFO ] Trap strengthening (SAT) tested/added 4/3 trap constraints in 308 ms
[2025-06-01 09:10:16] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 22 ms.
[2025-06-01 09:10:16] [INFO ] Added : 39 causal constraints over 8 iterations in 221 ms. Result :sat
Minimization took 90 ms.
[2025-06-01 09:10:16] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 09:10:16] [INFO ] [Real]Absence check using state equation in 78 ms returned sat
[2025-06-01 09:10:16] [INFO ] [Real]Added 30 Read/Feed constraints in 9 ms returned sat
[2025-06-01 09:10:17] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 09:10:17] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 09:10:17] [INFO ] [Nat]Absence check using state equation in 74 ms returned sat
[2025-06-01 09:10:17] [INFO ] [Nat]Added 30 Read/Feed constraints in 9 ms returned sat
[2025-06-01 09:10:17] [INFO ] Deduced a trap composed of 33 places in 108 ms of which 3 ms to minimize.
[2025-06-01 09:10:17] [INFO ] Deduced a trap composed of 31 places in 88 ms of which 2 ms to minimize.
[2025-06-01 09:10:17] [INFO ] Deduced a trap composed of 22 places in 85 ms of which 2 ms to minimize.
[2025-06-01 09:10:17] [INFO ] Deduced a trap composed of 24 places in 90 ms of which 2 ms to minimize.
[2025-06-01 09:10:17] [INFO ] Trap strengthening (SAT) tested/added 5/4 trap constraints in 416 ms
[2025-06-01 09:10:17] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 19 ms.
[2025-06-01 09:10:17] [INFO ] Added : 19 causal constraints over 5 iterations in 120 ms. Result :sat
Minimization took 50 ms.
[2025-06-01 09:10:17] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 09:10:17] [INFO ] [Real]Absence check using state equation in 87 ms returned sat
[2025-06-01 09:10:17] [INFO ] [Real]Added 30 Read/Feed constraints in 10 ms returned sat
[2025-06-01 09:10:17] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 09:10:17] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 09:10:18] [INFO ] [Nat]Absence check using state equation in 82 ms returned sat
[2025-06-01 09:10:18] [INFO ] [Nat]Added 30 Read/Feed constraints in 8 ms returned sat
[2025-06-01 09:10:18] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 18 ms.
[2025-06-01 09:10:18] [INFO ] Deduced a trap composed of 25 places in 72 ms of which 2 ms to minimize.
[2025-06-01 09:10:18] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 96 ms
[2025-06-01 09:10:18] [INFO ] Added : 9 causal constraints over 5 iterations in 221 ms. Result :sat
Minimization took 74 ms.
[2025-06-01 09:10:18] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 09:10:18] [INFO ] [Real]Absence check using state equation in 59 ms returned sat
[2025-06-01 09:10:18] [INFO ] [Real]Added 30 Read/Feed constraints in 8 ms returned sat
[2025-06-01 09:10:18] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 09:10:18] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 09:10:18] [INFO ] [Nat]Absence check using state equation in 82 ms returned sat
[2025-06-01 09:10:18] [INFO ] [Nat]Added 30 Read/Feed constraints in 11 ms returned sat
[2025-06-01 09:10:18] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 17 ms.
[2025-06-01 09:10:18] [INFO ] Added : 36 causal constraints over 10 iterations in 222 ms. Result :sat
Minimization took 94 ms.
[2025-06-01 09:10:18] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 09:10:19] [INFO ] [Real]Absence check using state equation in 59 ms returned sat
[2025-06-01 09:10:19] [INFO ] [Real]Added 30 Read/Feed constraints in 9 ms returned sat
[2025-06-01 09:10:19] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 09:10:19] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 09:10:19] [INFO ] [Nat]Absence check using state equation in 80 ms returned sat
[2025-06-01 09:10:19] [INFO ] [Nat]Added 30 Read/Feed constraints in 13 ms returned sat
[2025-06-01 09:10:19] [INFO ] Deduced a trap composed of 30 places in 70 ms of which 2 ms to minimize.
[2025-06-01 09:10:19] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 90 ms
[2025-06-01 09:10:19] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 16 ms.
[2025-06-01 09:10:19] [INFO ] Added : 6 causal constraints over 2 iterations in 67 ms. Result :sat
Minimization took 45 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[66046, 49869, 599, 377, 77, 83] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[66048, 49869, 599, 377, 77, 83] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Support contains 6 out of 112 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 112/112 places, 274/274 transitions.
Applied a total of 0 rules in 6 ms. Remains 112 /112 variables (removed 0) and now considering 274/274 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 6 ms. Remains : 112/112 places, 274/274 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 112/112 places, 274/274 transitions.
Applied a total of 0 rules in 4 ms. Remains 112 /112 variables (removed 0) and now considering 274/274 (removed 0) transitions.
[2025-06-01 09:11:24] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 09:11:24] [INFO ] Invariant cache hit.
[2025-06-01 09:11:24] [INFO ] Implicit Places using invariants in 122 ms returned []
[2025-06-01 09:11:24] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 09:11:24] [INFO ] Invariant cache hit.
[2025-06-01 09:11:24] [INFO ] State equation strengthened by 30 read => feed constraints.
[2025-06-01 09:11:24] [INFO ] Implicit Places using invariants and state equation in 265 ms returned []
Implicit Place search using SMT with State Equation took 407 ms to find 0 implicit places.
[2025-06-01 09:11:24] [INFO ] Redundant transitions in 1 ms returned []
Running 272 sub problems to find dead transitions.
[2025-06-01 09:11:24] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 09:11:24] [INFO ] Invariant cache hit.
[2025-06-01 09:11:24] [INFO ] State equation strengthened by 30 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/111 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/111 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 2 (OVERLAPS) 180/291 variables, 111/114 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/291 variables, 30/144 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/291 variables, 0/144 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 5 (OVERLAPS) 1/292 variables, 1/145 constraints. Problems are: Problem set: 0 solved, 272 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/292 variables, 0/145 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 7 (OVERLAPS) 0/292 variables, 0/145 constraints. Problems are: Problem set: 0 solved, 272 unsolved
No progress, stopping.
After SMT solving in domain Real declared 292/292 variables, and 145 constraints, problems are : Problem set: 0 solved, 272 unsolved in 12120 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 112/112 constraints, ReadFeed: 30/30 constraints, PredecessorRefiner: 272/272 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 272 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/111 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/111 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 2 (OVERLAPS) 180/291 variables, 111/114 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/291 variables, 30/144 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/291 variables, 32/176 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/291 variables, 0/176 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 6 (OVERLAPS) 1/292 variables, 1/177 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/292 variables, 240/417 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/292 variables, 0/417 constraints. Problems are: Problem set: 0 solved, 272 unsolved
At refinement iteration 9 (OVERLAPS) 0/292 variables, 0/417 constraints. Problems are: Problem set: 0 solved, 272 unsolved
No progress, stopping.
After SMT solving in domain Int declared 292/292 variables, and 417 constraints, problems are : Problem set: 0 solved, 272 unsolved in 19353 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 112/112 constraints, ReadFeed: 30/30 constraints, PredecessorRefiner: 272/272 constraints, Known Traps: 0/0 constraints]
After SMT, in 31691ms problems are : Problem set: 0 solved, 272 unsolved
Search for dead transitions found 0 dead transitions in 31694ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 32112 ms. Remains : 112/112 places, 274/274 transitions.
[2025-06-01 09:11:56] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
Found an invariant !
This invariant on transitions {25=1, 84=1, 138=1, 177=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {25=1, 84=1, 122=1, 172=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 6) seen :[2147483647, 14, 7, 6, 3, 2]
Current structural bounds on expressions (after cover walk) : Max Seen:[+inf, 49869, 599, 377, 77, 83] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
[2025-06-01 09:11:56] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 09:11:56] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[+inf, 49869, 599, 377, 77, 83] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000003 steps (2 resets) in 1706 ms. (585 steps per ms)
FORMULA FunctionPointer-PT-b032-UpperBounds-12 +inf TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA FunctionPointer-PT-b032-UpperBounds-01 +inf TECHNIQUES TOPOLOGICAL RANDOM_WALK
BEST_FIRST walk for 5000005 steps (10 resets) in 6132 ms. (815 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[49869, 599, 377, 77, 83] Max Struct:[+inf, +inf, +inf, +inf, +inf]
[2025-06-01 09:12:04] [INFO ] Flow matrix only has 180 transitions (discarded 94 similar events)
[2025-06-01 09:12:04] [INFO ] Invariant cache hit.
[2025-06-01 09:12:04] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 09:12:04] [INFO ] [Real]Absence check using state equation in 91 ms returned sat
[2025-06-01 09:12:04] [INFO ] State equation strengthened by 30 read => feed constraints.
[2025-06-01 09:12:04] [INFO ] [Real]Added 30 Read/Feed constraints in 13 ms returned sat
[2025-06-01 09:12:04] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 09:12:04] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 09:12:04] [INFO ] [Nat]Absence check using state equation in 99 ms returned sat
[2025-06-01 09:12:04] [INFO ] [Nat]Added 30 Read/Feed constraints in 13 ms returned sat
[2025-06-01 09:12:04] [INFO ] Deduced a trap composed of 33 places in 160 ms of which 3 ms to minimize.
[2025-06-01 09:12:04] [INFO ] Deduced a trap composed of 31 places in 150 ms of which 2 ms to minimize.
[2025-06-01 09:12:05] [INFO ] Deduced a trap composed of 22 places in 132 ms of which 2 ms to minimize.
[2025-06-01 09:12:05] [INFO ] Trap strengthening (SAT) tested/added 4/3 trap constraints in 504 ms
[2025-06-01 09:12:05] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 33 ms.
[2025-06-01 09:12:05] [INFO ] Added : 39 causal constraints over 8 iterations in 234 ms. Result :sat
Minimization took 90 ms.
[2025-06-01 09:12:05] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 09:12:05] [INFO ] [Real]Absence check using state equation in 94 ms returned sat
[2025-06-01 09:12:05] [INFO ] [Real]Added 30 Read/Feed constraints in 11 ms returned sat
[2025-06-01 09:12:05] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 09:12:05] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 09:12:05] [INFO ] [Nat]Absence check using state equation in 95 ms returned sat
[2025-06-01 09:12:05] [INFO ] [Nat]Added 30 Read/Feed constraints in 12 ms returned sat
[2025-06-01 09:12:05] [INFO ] Deduced a trap composed of 33 places in 152 ms of which 2 ms to minimize.
[2025-06-01 09:12:06] [INFO ] Deduced a trap composed of 31 places in 137 ms of which 2 ms to minimize.
[2025-06-01 09:12:06] [INFO ] Deduced a trap composed of 22 places in 149 ms of which 2 ms to minimize.
[2025-06-01 09:12:06] [INFO ] Deduced a trap composed of 24 places in 152 ms of which 2 ms to minimize.
[2025-06-01 09:12:06] [INFO ] Trap strengthening (SAT) tested/added 5/4 trap constraints in 661 ms
[2025-06-01 09:12:06] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 23 ms.
[2025-06-01 09:12:06] [INFO ] Added : 19 causal constraints over 5 iterations in 180 ms. Result :sat
Minimization took 80 ms.
[2025-06-01 09:12:06] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 09:12:06] [INFO ] [Real]Absence check using state equation in 88 ms returned sat
[2025-06-01 09:12:06] [INFO ] [Real]Added 30 Read/Feed constraints in 9 ms returned sat
[2025-06-01 09:12:06] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 09:12:06] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 09:12:07] [INFO ] [Nat]Absence check using state equation in 88 ms returned sat
[2025-06-01 09:12:07] [INFO ] [Nat]Added 30 Read/Feed constraints in 9 ms returned sat
[2025-06-01 09:12:07] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 27 ms.
[2025-06-01 09:12:07] [INFO ] Deduced a trap composed of 25 places in 161 ms of which 2 ms to minimize.
[2025-06-01 09:12:07] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 192 ms
[2025-06-01 09:12:07] [INFO ] Added : 9 causal constraints over 5 iterations in 358 ms. Result :sat
Minimization took 75 ms.
[2025-06-01 09:12:07] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 09:12:07] [INFO ] [Real]Absence check using state equation in 95 ms returned sat
[2025-06-01 09:12:07] [INFO ] [Real]Added 30 Read/Feed constraints in 13 ms returned sat
[2025-06-01 09:12:07] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 09:12:07] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 09:12:07] [INFO ] [Nat]Absence check using state equation in 108 ms returned sat
[2025-06-01 09:12:07] [INFO ] [Nat]Added 30 Read/Feed constraints in 12 ms returned sat
[2025-06-01 09:12:07] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 24 ms.
[2025-06-01 09:12:08] [INFO ] Added : 36 causal constraints over 10 iterations in 265 ms. Result :sat
Minimization took 91 ms.
[2025-06-01 09:12:08] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 09:12:08] [INFO ] [Real]Absence check using state equation in 92 ms returned sat
[2025-06-01 09:12:08] [INFO ] [Real]Added 30 Read/Feed constraints in 17 ms returned sat
[2025-06-01 09:12:08] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 09:12:08] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 09:12:08] [INFO ] [Nat]Absence check using state equation in 89 ms returned sat
[2025-06-01 09:12:08] [INFO ] [Nat]Added 30 Read/Feed constraints in 14 ms returned sat
[2025-06-01 09:12:08] [INFO ] Deduced a trap composed of 30 places in 123 ms of which 2 ms to minimize.
[2025-06-01 09:12:08] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 149 ms
[2025-06-01 09:12:08] [INFO ] Computed and/alt/rep : 75/437/73 causal constraints (skipped 105 transitions) in 22 ms.
[2025-06-01 09:12:08] [INFO ] Added : 6 causal constraints over 2 iterations in 88 ms. Result :sat
Minimization took 71 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[49869, 599, 377, 77, 83] Max Struct:[+inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[49869, 599, 377, 77, 83] Max Struct:[+inf, +inf, +inf, +inf, +inf]
Support contains 5 out of 112 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 112/112 places, 274/274 transitions.
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 1 place count 111 transition count 272
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 111 transition count 272
Applied a total of 2 rules in 6 ms. Remains 111 /112 variables (removed 1) and now considering 272/274 (removed 2) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 6 ms. Remains : 111/112 places, 272/274 transitions.
[2025-06-01 09:12:43] [INFO ] Flow matrix only has 177 transitions (discarded 95 similar events)
Found an invariant !
This invariant on transitions {26=1, 84=1, 122=1, 167=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {31=1, 89=1, 127=1, 166=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 62 ms. (steps per millisecond=161 ) properties (out of 5) seen :[12, 10, 6, 3, 2]
Current structural bounds on expressions (after cover walk) : Max Seen:[49869, 599, 377, 77, 83] Max Struct:[+inf, +inf, +inf, +inf, +inf]
[2025-06-01 09:12:43] [INFO ] Flow matrix only has 177 transitions (discarded 95 similar events)
// Phase 1: matrix 177 rows 111 cols
[2025-06-01 09:12:43] [INFO ] Computed 3 invariants in 2 ms
Current structural bounds on expressions (after invariants) : Max Seen:[49869, 599, 377, 77, 83] Max Struct:[+inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 1943 ms. (514 steps per ms)
BEST_FIRST walk for 5000005 steps (10 resets) in 5672 ms. (881 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[49869, 599, 377, 77, 83] Max Struct:[+inf, +inf, +inf, +inf, +inf]
[2025-06-01 09:12:51] [INFO ] Flow matrix only has 177 transitions (discarded 95 similar events)
[2025-06-01 09:12:51] [INFO ] Invariant cache hit.
[2025-06-01 09:12:51] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 09:12:51] [INFO ] [Real]Absence check using state equation in 58 ms returned sat
[2025-06-01 09:12:51] [INFO ] State equation strengthened by 28 read => feed constraints.
[2025-06-01 09:12:51] [INFO ] [Real]Added 28 Read/Feed constraints in 9 ms returned sat
[2025-06-01 09:12:51] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 09:12:51] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 09:12:51] [INFO ] [Nat]Absence check using state equation in 56 ms returned sat
[2025-06-01 09:12:51] [INFO ] [Nat]Added 28 Read/Feed constraints in 8 ms returned sat
[2025-06-01 09:12:51] [INFO ] Computed and/alt/rep : 75/405/72 causal constraints (skipped 103 transitions) in 17 ms.
[2025-06-01 09:12:51] [INFO ] Added : 20 causal constraints over 5 iterations in 164 ms. Result :sat
Minimization took 74 ms.
[2025-06-01 09:12:51] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 09:12:52] [INFO ] [Real]Absence check using state equation in 90 ms returned sat
[2025-06-01 09:12:52] [INFO ] [Real]Added 28 Read/Feed constraints in 14 ms returned sat
[2025-06-01 09:12:52] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 09:12:52] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 09:12:52] [INFO ] [Nat]Absence check using state equation in 89 ms returned sat
[2025-06-01 09:12:52] [INFO ] [Nat]Added 28 Read/Feed constraints in 13 ms returned sat
[2025-06-01 09:12:52] [INFO ] Computed and/alt/rep : 75/405/72 causal constraints (skipped 103 transitions) in 22 ms.
[2025-06-01 09:12:52] [INFO ] Added : 15 causal constraints over 4 iterations in 130 ms. Result :sat
Minimization took 67 ms.
[2025-06-01 09:12:52] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 09:12:52] [INFO ] [Real]Absence check using state equation in 91 ms returned sat
[2025-06-01 09:12:52] [INFO ] [Real]Added 28 Read/Feed constraints in 12 ms returned sat
[2025-06-01 09:12:52] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 09:12:52] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 09:12:52] [INFO ] [Nat]Absence check using state equation in 94 ms returned sat
[2025-06-01 09:12:52] [INFO ] [Nat]Added 28 Read/Feed constraints in 12 ms returned sat
[2025-06-01 09:12:52] [INFO ] Computed and/alt/rep : 75/405/72 causal constraints (skipped 103 transitions) in 30 ms.
[2025-06-01 09:12:53] [INFO ] Deduced a trap composed of 21 places in 135 ms of which 3 ms to minimize.
[2025-06-01 09:12:53] [INFO ] Deduced a trap composed of 21 places in 131 ms of which 2 ms to minimize.
[2025-06-01 09:12:53] [INFO ] Deduced a trap composed of 26 places in 142 ms of which 3 ms to minimize.
[2025-06-01 09:12:53] [INFO ] Trap strengthening (SAT) tested/added 4/3 trap constraints in 485 ms
[2025-06-01 09:12:53] [INFO ] Added : 8 causal constraints over 4 iterations in 624 ms. Result :sat
Minimization took 67 ms.
[2025-06-01 09:12:53] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 09:12:53] [INFO ] [Real]Absence check using state equation in 92 ms returned sat
[2025-06-01 09:12:53] [INFO ] [Real]Added 28 Read/Feed constraints in 12 ms returned sat
[2025-06-01 09:12:53] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 09:12:53] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 09:12:53] [INFO ] [Nat]Absence check using state equation in 93 ms returned sat
[2025-06-01 09:12:53] [INFO ] [Nat]Added 28 Read/Feed constraints in 12 ms returned sat
[2025-06-01 09:12:54] [INFO ] Computed and/alt/rep : 75/405/72 causal constraints (skipped 103 transitions) in 23 ms.
[2025-06-01 09:12:54] [INFO ] Added : 13 causal constraints over 3 iterations in 120 ms. Result :sat
Minimization took 66 ms.
[2025-06-01 09:12:54] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2025-06-01 09:12:54] [INFO ] [Real]Absence check using state equation in 89 ms returned sat
[2025-06-01 09:12:54] [INFO ] [Real]Added 28 Read/Feed constraints in 17 ms returned sat
[2025-06-01 09:12:54] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 09:12:54] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 09:12:54] [INFO ] [Nat]Absence check using state equation in 91 ms returned sat
[2025-06-01 09:12:54] [INFO ] [Nat]Added 28 Read/Feed constraints in 18 ms returned sat
[2025-06-01 09:12:54] [INFO ] Deduced a trap composed of 29 places in 151 ms of which 2 ms to minimize.
[2025-06-01 09:12:54] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 175 ms
[2025-06-01 09:12:54] [INFO ] Computed and/alt/rep : 75/405/72 causal constraints (skipped 103 transitions) in 31 ms.
[2025-06-01 09:12:54] [INFO ] Added : 6 causal constraints over 3 iterations in 109 ms. Result :sat
Minimization took 62 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[49869, 599, 377, 77, 83] Max Struct:[+inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[49869, 599, 377, 77, 83] Max Struct:[+inf, +inf, +inf, +inf, +inf]
Support contains 5 out of 111 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 111/111 places, 272/272 transitions.
Applied a total of 0 rules in 4 ms. Remains 111 /111 variables (removed 0) and now considering 272/272 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 5 ms. Remains : 111/111 places, 272/272 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 111/111 places, 272/272 transitions.
Applied a total of 0 rules in 5 ms. Remains 111 /111 variables (removed 0) and now considering 272/272 (removed 0) transitions.
[2025-06-01 09:13:26] [INFO ] Flow matrix only has 177 transitions (discarded 95 similar events)
[2025-06-01 09:13:26] [INFO ] Invariant cache hit.
[2025-06-01 09:13:26] [INFO ] Implicit Places using invariants in 128 ms returned []
[2025-06-01 09:13:26] [INFO ] Flow matrix only has 177 transitions (discarded 95 similar events)
[2025-06-01 09:13:26] [INFO ] Invariant cache hit.
[2025-06-01 09:13:26] [INFO ] State equation strengthened by 28 read => feed constraints.
[2025-06-01 09:13:26] [INFO ] Implicit Places using invariants and state equation in 327 ms returned []
Implicit Place search using SMT with State Equation took 482 ms to find 0 implicit places.
[2025-06-01 09:13:26] [INFO ] Redundant transitions in 1 ms returned []
Running 270 sub problems to find dead transitions.
[2025-06-01 09:13:26] [INFO ] Flow matrix only has 177 transitions (discarded 95 similar events)
[2025-06-01 09:13:26] [INFO ] Invariant cache hit.
[2025-06-01 09:13:26] [INFO ] State equation strengthened by 28 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/110 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 270 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/110 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 270 unsolved
At refinement iteration 2 (OVERLAPS) 177/287 variables, 110/113 constraints. Problems are: Problem set: 0 solved, 270 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/287 variables, 28/141 constraints. Problems are: Problem set: 0 solved, 270 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/287 variables, 0/141 constraints. Problems are: Problem set: 0 solved, 270 unsolved
At refinement iteration 5 (OVERLAPS) 1/288 variables, 1/142 constraints. Problems are: Problem set: 0 solved, 270 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/288 variables, 0/142 constraints. Problems are: Problem set: 0 solved, 270 unsolved
At refinement iteration 7 (OVERLAPS) 0/288 variables, 0/142 constraints. Problems are: Problem set: 0 solved, 270 unsolved
No progress, stopping.
After SMT solving in domain Real declared 288/288 variables, and 142 constraints, problems are : Problem set: 0 solved, 270 unsolved in 13897 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 111/111 constraints, ReadFeed: 28/28 constraints, PredecessorRefiner: 270/270 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 270 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/110 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 270 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/110 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 270 unsolved
At refinement iteration 2 (OVERLAPS) 177/287 variables, 110/113 constraints. Problems are: Problem set: 0 solved, 270 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/287 variables, 28/141 constraints. Problems are: Problem set: 0 solved, 270 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/287 variables, 32/173 constraints. Problems are: Problem set: 0 solved, 270 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/287 variables, 0/173 constraints. Problems are: Problem set: 0 solved, 270 unsolved
At refinement iteration 6 (OVERLAPS) 1/288 variables, 1/174 constraints. Problems are: Problem set: 0 solved, 270 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/288 variables, 238/412 constraints. Problems are: Problem set: 0 solved, 270 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/288 variables, 0/412 constraints. Problems are: Problem set: 0 solved, 270 unsolved
At refinement iteration 9 (OVERLAPS) 0/288 variables, 0/412 constraints. Problems are: Problem set: 0 solved, 270 unsolved
No progress, stopping.
After SMT solving in domain Int declared 288/288 variables, and 412 constraints, problems are : Problem set: 0 solved, 270 unsolved in 16397 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 111/111 constraints, ReadFeed: 28/28 constraints, PredecessorRefiner: 270/270 constraints, Known Traps: 0/0 constraints]
After SMT, in 30662ms problems are : Problem set: 0 solved, 270 unsolved
Search for dead transitions found 0 dead transitions in 30667ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 31166 ms. Remains : 111/111 places, 272/272 transitions.
[2025-06-01 09:13:57] [INFO ] Flow matrix only has 177 transitions (discarded 95 similar events)
Found an invariant !
This invariant on transitions {26=1, 84=1, 122=1, 167=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {31=1, 89=1, 127=1, 166=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 64 ms. (steps per millisecond=156 ) properties (out of 5) seen :[20, 7, 4, 4, 2]
Current structural bounds on expressions (after cover walk) : Max Seen:[49869, 599, 377, 77, 83] Max Struct:[+inf, +inf, +inf, +inf, +inf]
RANDOM walk for 40002 steps (8 resets) in 1180 ms. (33 steps per ms) remains 5/5 properties
BEST_FIRST walk for 40002 steps (8 resets) in 256 ms. (155 steps per ms) remains 5/5 properties
BEST_FIRST walk for 40004 steps (8 resets) in 194 ms. (205 steps per ms) remains 5/5 properties
BEST_FIRST walk for 40004 steps (8 resets) in 202 ms. (197 steps per ms) remains 5/5 properties
[2025-06-01 09:13:58] [INFO ] Flatten gal took : 192 ms
BEST_FIRST walk for 40004 steps (8 resets) in 221 ms. (180 steps per ms) remains 5/5 properties
[2025-06-01 09:13:58] [INFO ] Flatten gal took : 86 ms
BEST_FIRST walk for 40004 steps (8 resets) in 182 ms. (218 steps per ms) remains 5/5 properties
[2025-06-01 09:13:58] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality18320747726916397515.gal : 19 ms
[2025-06-01 09:13:58] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality3179684558770651614.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/ReachabilityCardinality18320747726916397515.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality3179684558770651614.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202405141337/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...329
Loading property file /tmp/ReachabilityCardinality3179684558770651614.prop.
SDD proceeding with computation,5 properties remain. new max is 4
SDD size :1 after 31
SDD proceeding with computation,5 properties remain. new max is 8
SDD size :31 after 1082
SDD proceeding with computation,5 properties remain. new max is 16
SDD size :1082 after 200581
Interrupted probabilistic random walk after 263679 steps, run timeout after 3001 ms. (steps per millisecond=87 ) properties seen :0 out of 5
Probabilistic random walk after 263679 steps, saw 164148 distinct states, run finished after 3006 ms. (steps per millisecond=87 ) properties seen :0
[2025-06-01 09:14:01] [INFO ] Flow matrix only has 177 transitions (discarded 95 similar events)
[2025-06-01 09:14:01] [INFO ] Invariant cache hit.
[2025-06-01 09:14:01] [INFO ] State equation strengthened by 28 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/5 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 1 (OVERLAPS) 17/22 variables, 5/5 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/22 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 3 (OVERLAPS) 106/128 variables, 13/18 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/128 variables, 4/22 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/128 variables, 0/22 constraints. Problems are: Problem set: 0 solved, 5 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (OVERLAPS) 12/140 variables, 2/24 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/140 variables, 6/30 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/140 variables, 0/30 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 9 (OVERLAPS) 123/263 variables, 70/100 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/263 variables, 24/124 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/263 variables, 0/124 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 12 (OVERLAPS) 6/269 variables, 1/125 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/269 variables, 0/125 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 14 (OVERLAPS) 16/285 variables, 15/140 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/285 variables, 0/140 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 16 (OVERLAPS) 3/288 variables, 2/142 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/288 variables, 0/142 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 18 (OVERLAPS) 0/288 variables, 0/142 constraints. Problems are: Problem set: 0 solved, 5 unsolved
No progress, stopping.
After SMT solving in domain Real declared 288/288 variables, and 142 constraints, problems are : Problem set: 0 solved, 5 unsolved in 354 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 111/111 constraints, ReadFeed: 28/28 constraints, PredecessorRefiner: 5/5 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 5 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/5 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 1 (OVERLAPS) 17/22 variables, 5/5 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/22 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 3 (OVERLAPS) 106/128 variables, 13/18 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/128 variables, 4/22 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/128 variables, 5/27 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/128 variables, 0/27 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 7 (OVERLAPS) 12/140 variables, 2/29 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/140 variables, 6/35 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/140 variables, 0/35 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 10 (OVERLAPS) 123/263 variables, 70/105 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/263 variables, 24/129 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/263 variables, 0/129 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 13 (OVERLAPS) 6/269 variables, 1/130 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/269 variables, 0/130 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 15 (OVERLAPS) 16/285 variables, 15/145 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/285 variables, 0/145 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 17 (OVERLAPS) 3/288 variables, 2/147 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/288 variables, 0/147 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 19 (OVERLAPS) 0/288 variables, 0/147 constraints. Problems are: Problem set: 0 solved, 5 unsolved
No progress, stopping.
After SMT solving in domain Int declared 288/288 variables, and 147 constraints, problems are : Problem set: 0 solved, 5 unsolved in 356 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 111/111 constraints, ReadFeed: 28/28 constraints, PredecessorRefiner: 5/5 constraints, Known Traps: 0/0 constraints]
After SMT, in 717ms problems are : Problem set: 0 solved, 5 unsolved
Fused 5 Parikh solutions to 1 different solutions.
Parikh walk visited 0 properties in 1 ms.
Support contains 5 out of 111 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 111/111 places, 272/272 transitions.
Applied a total of 0 rules in 5 ms. Remains 111 /111 variables (removed 0) and now considering 272/272 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 5 ms. Remains : 111/111 places, 272/272 transitions.
RANDOM walk for 40000 steps (8 resets) in 155 ms. (256 steps per ms) remains 5/5 properties
BEST_FIRST walk for 40004 steps (8 resets) in 104 ms. (380 steps per ms) remains 5/5 properties
BEST_FIRST walk for 40004 steps (8 resets) in 90 ms. (439 steps per ms) remains 5/5 properties
BEST_FIRST walk for 40004 steps (8 resets) in 76 ms. (519 steps per ms) remains 5/5 properties
BEST_FIRST walk for 40003 steps (8 resets) in 85 ms. (465 steps per ms) remains 5/5 properties
BEST_FIRST walk for 40004 steps (8 resets) in 92 ms. (430 steps per ms) remains 5/5 properties
Interrupted probabilistic random walk after 212607 steps, run timeout after 3001 ms. (steps per millisecond=70 ) properties seen :0 out of 5
Probabilistic random walk after 212607 steps, saw 132356 distinct states, run finished after 3005 ms. (steps per millisecond=70 ) properties seen :0
[2025-06-01 09:14:05] [INFO ] Flow matrix only has 177 transitions (discarded 95 similar events)
[2025-06-01 09:14:05] [INFO ] Invariant cache hit.
[2025-06-01 09:14:05] [INFO ] State equation strengthened by 28 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/5 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 1 (OVERLAPS) 17/22 variables, 5/5 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/22 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 3 (OVERLAPS) 106/128 variables, 13/18 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/128 variables, 4/22 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/128 variables, 0/22 constraints. Problems are: Problem set: 0 solved, 5 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (OVERLAPS) 12/140 variables, 2/24 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/140 variables, 6/30 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/140 variables, 0/30 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 9 (OVERLAPS) 123/263 variables, 70/100 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/263 variables, 24/124 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/263 variables, 0/124 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 12 (OVERLAPS) 6/269 variables, 1/125 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/269 variables, 0/125 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 14 (OVERLAPS) 16/285 variables, 15/140 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/285 variables, 0/140 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 16 (OVERLAPS) 3/288 variables, 2/142 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/288 variables, 0/142 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 18 (OVERLAPS) 0/288 variables, 0/142 constraints. Problems are: Problem set: 0 solved, 5 unsolved
No progress, stopping.
After SMT solving in domain Real declared 288/288 variables, and 142 constraints, problems are : Problem set: 0 solved, 5 unsolved in 326 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 111/111 constraints, ReadFeed: 28/28 constraints, PredecessorRefiner: 5/5 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 5 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/5 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 1 (OVERLAPS) 17/22 variables, 5/5 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/22 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 3 (OVERLAPS) 106/128 variables, 13/18 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/128 variables, 4/22 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/128 variables, 5/27 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/128 variables, 0/27 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 7 (OVERLAPS) 12/140 variables, 2/29 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/140 variables, 6/35 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/140 variables, 0/35 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 10 (OVERLAPS) 123/263 variables, 70/105 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/263 variables, 24/129 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/263 variables, 0/129 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 13 (OVERLAPS) 6/269 variables, 1/130 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/269 variables, 0/130 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 15 (OVERLAPS) 16/285 variables, 15/145 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/285 variables, 0/145 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 17 (OVERLAPS) 3/288 variables, 2/147 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/288 variables, 0/147 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 19 (OVERLAPS) 0/288 variables, 0/147 constraints. Problems are: Problem set: 0 solved, 5 unsolved
No progress, stopping.
After SMT solving in domain Int declared 288/288 variables, and 147 constraints, problems are : Problem set: 0 solved, 5 unsolved in 349 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 111/111 constraints, ReadFeed: 28/28 constraints, PredecessorRefiner: 5/5 constraints, Known Traps: 0/0 constraints]
After SMT, in 694ms problems are : Problem set: 0 solved, 5 unsolved
Fused 5 Parikh solutions to 1 different solutions.
Parikh walk visited 0 properties in 1 ms.
Support contains 5 out of 111 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 111/111 places, 272/272 transitions.
Applied a total of 0 rules in 4 ms. Remains 111 /111 variables (removed 0) and now considering 272/272 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 4 ms. Remains : 111/111 places, 272/272 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 111/111 places, 272/272 transitions.
Applied a total of 0 rules in 5 ms. Remains 111 /111 variables (removed 0) and now considering 272/272 (removed 0) transitions.
[2025-06-01 09:14:06] [INFO ] Flow matrix only has 177 transitions (discarded 95 similar events)
[2025-06-01 09:14:06] [INFO ] Invariant cache hit.
[2025-06-01 09:14:06] [INFO ] Implicit Places using invariants in 136 ms returned []
[2025-06-01 09:14:06] [INFO ] Flow matrix only has 177 transitions (discarded 95 similar events)
[2025-06-01 09:14:06] [INFO ] Invariant cache hit.
[2025-06-01 09:14:06] [INFO ] State equation strengthened by 28 read => feed constraints.
[2025-06-01 09:14:06] [INFO ] Implicit Places using invariants and state equation in 294 ms returned []
Implicit Place search using SMT with State Equation took 432 ms to find 0 implicit places.
[2025-06-01 09:14:06] [INFO ] Redundant transitions in 1 ms returned []
Running 270 sub problems to find dead transitions.
[2025-06-01 09:14:06] [INFO ] Flow matrix only has 177 transitions (discarded 95 similar events)
[2025-06-01 09:14:06] [INFO ] Invariant cache hit.
[2025-06-01 09:14:06] [INFO ] State equation strengthened by 28 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/110 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 270 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/110 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 270 unsolved
At refinement iteration 2 (OVERLAPS) 177/287 variables, 110/113 constraints. Problems are: Problem set: 0 solved, 270 unsolved
SDD proceeding with computation,5 properties remain. new max is 32
SDD size :200581 after 5.89827e+08
At refinement iteration 3 (INCLUDED_ONLY) 0/287 variables, 28/141 constraints. Problems are: Problem set: 0 solved, 270 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/287 variables, 0/141 constraints. Problems are: Problem set: 0 solved, 270 unsolved
At refinement iteration 5 (OVERLAPS) 1/288 variables, 1/142 constraints. Problems are: Problem set: 0 solved, 270 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/288 variables, 0/142 constraints. Problems are: Problem set: 0 solved, 270 unsolved
At refinement iteration 7 (OVERLAPS) 0/288 variables, 0/142 constraints. Problems are: Problem set: 0 solved, 270 unsolved
No progress, stopping.
After SMT solving in domain Real declared 288/288 variables, and 142 constraints, problems are : Problem set: 0 solved, 270 unsolved in 11755 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 111/111 constraints, ReadFeed: 28/28 constraints, PredecessorRefiner: 270/270 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 270 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/110 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 270 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/110 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 270 unsolved
At refinement iteration 2 (OVERLAPS) 177/287 variables, 110/113 constraints. Problems are: Problem set: 0 solved, 270 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/287 variables, 28/141 constraints. Problems are: Problem set: 0 solved, 270 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/287 variables, 32/173 constraints. Problems are: Problem set: 0 solved, 270 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/287 variables, 0/173 constraints. Problems are: Problem set: 0 solved, 270 unsolved
At refinement iteration 6 (OVERLAPS) 1/288 variables, 1/174 constraints. Problems are: Problem set: 0 solved, 270 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/288 variables, 238/412 constraints. Problems are: Problem set: 0 solved, 270 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/288 variables, 0/412 constraints. Problems are: Problem set: 0 solved, 270 unsolved
At refinement iteration 9 (OVERLAPS) 0/288 variables, 0/412 constraints. Problems are: Problem set: 0 solved, 270 unsolved
No progress, stopping.
After SMT solving in domain Int declared 288/288 variables, and 412 constraints, problems are : Problem set: 0 solved, 270 unsolved in 20570 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 111/111 constraints, ReadFeed: 28/28 constraints, PredecessorRefiner: 270/270 constraints, Known Traps: 0/0 constraints]
After SMT, in 32584ms problems are : Problem set: 0 solved, 270 unsolved
Search for dead transitions found 0 dead transitions in 32589ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 33039 ms. Remains : 111/111 places, 272/272 transitions.
Attempting over-approximation, by ignoring read arcs.
Ensure Unique test removed 95 transitions
Reduce isomorphic transitions removed 95 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 11 transitions
Trivial Post-agglo rules discarded 11 transitions
Performed 11 trivial Post agglomeration. Transition count delta: 11
Iterating post reduction 0 with 106 rules applied. Total rules applied 106 place count 111 transition count 166
Reduce places removed 11 places and 0 transitions.
Iterating post reduction 1 with 11 rules applied. Total rules applied 117 place count 100 transition count 166
Performed 24 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 24 Pre rules applied. Total rules applied 117 place count 100 transition count 142
Deduced a syphon composed of 24 places in 0 ms
Reduce places removed 24 places and 0 transitions.
Iterating global reduction 2 with 48 rules applied. Total rules applied 165 place count 76 transition count 142
Performed 16 Post agglomeration using F-continuation condition.Transition count delta: 16
Deduced a syphon composed of 16 places in 0 ms
Reduce places removed 16 places and 0 transitions.
Iterating global reduction 2 with 32 rules applied. Total rules applied 197 place count 60 transition count 126
Discarding 7 places :
Symmetric choice reduction at 2 with 7 rule applications. Total rules 204 place count 53 transition count 112
Iterating global reduction 2 with 7 rules applied. Total rules applied 211 place count 53 transition count 112
Discarding 7 places :
Symmetric choice reduction at 2 with 7 rule applications. Total rules 218 place count 46 transition count 98
Iterating global reduction 2 with 7 rules applied. Total rules applied 225 place count 46 transition count 98
Discarding 7 places :
Symmetric choice reduction at 2 with 7 rule applications. Total rules 232 place count 39 transition count 84
Iterating global reduction 2 with 7 rules applied. Total rules applied 239 place count 39 transition count 84
Ensure Unique test removed 7 transitions
Reduce isomorphic transitions removed 7 transitions.
Iterating post reduction 2 with 7 rules applied. Total rules applied 246 place count 39 transition count 77
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 1 Pre rules applied. Total rules applied 246 place count 39 transition count 76
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 3 with 2 rules applied. Total rules applied 248 place count 38 transition count 76
Performed 4 Post agglomeration using F-continuation condition.Transition count delta: -1
Deduced a syphon composed of 4 places in 0 ms
Reduce places removed 4 places and 0 transitions.
Iterating global reduction 3 with 8 rules applied. Total rules applied 256 place count 34 transition count 77
Applied a total of 256 rules in 52 ms. Remains 34 /111 variables (removed 77) and now considering 77/272 (removed 195) transitions.
Running SMT prover for 5 properties.
// Phase 1: matrix 77 rows 34 cols
[2025-06-01 09:14:39] [INFO ] Computed 3 invariants in 0 ms
[2025-06-01 09:14:39] [INFO ] [Real]Absence check using 3 positive place invariants in 1 ms returned sat
[2025-06-01 09:14:39] [INFO ] After 360ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:5
[2025-06-01 09:14:39] [INFO ] [Nat]Absence check using 3 positive place invariants in 1 ms returned sat
[2025-06-01 09:14:39] [INFO ] After 43ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :5
[2025-06-01 09:14:39] [INFO ] State equation strengthened by 2 read => feed constraints.
[2025-06-01 09:14:39] [INFO ] After 20ms SMT Verify possible using 2 Read/Feed constraints in natural domain returned unsat :0 sat :5
TRAPS : Iteration 0
[2025-06-01 09:14:39] [INFO ] After 80ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :5
[2025-06-01 09:14:39] [INFO ] After 192ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :5
[2025-06-01 09:14:39] [INFO ] Flatten gal took : 28 ms
[2025-06-01 09:14:39] [INFO ] Flatten gal took : 10 ms
[2025-06-01 09:14:39] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality455644225765357728.gal : 3 ms
[2025-06-01 09:14:39] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality2967483751818843478.prop : 0 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202405141337/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality455644225765357728.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality2967483751818843478.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202405141337/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...327
Loading property file /tmp/ReachabilityCardinality2967483751818843478.prop.
SDD proceeding with computation,5 properties remain. new max is 4
SDD size :1 after 5
SDD proceeding with computation,5 properties remain. new max is 8
SDD size :5 after 10
SDD proceeding with computation,5 properties remain. new max is 16
SDD size :10 after 19
SDD proceeding with computation,5 properties remain. new max is 32
SDD size :19 after 126
SDD proceeding with computation,5 properties remain. new max is 64
SDD size :126 after 8184
SDD proceeding with computation,5 properties remain. new max is 128
SDD size :8184 after 4.90955e+09
SDD proceeding with computation,5 properties remain. new max is 256
SDD size :4.90955e+09 after 1.79196e+12
SDD proceeding with computation,5 properties remain. new max is 512
SDD size :1.79196e+12 after 2.30456e+14
SDD proceeding with computation,5 properties remain. new max is 1024
SDD size :2.30456e+14 after 1.99514e+16
Detected timeout of ITS tools.
[2025-06-01 09:14:48] [INFO ] Flatten gal took : 52 ms
[2025-06-01 09:14:48] [INFO ] Applying decomposition
[2025-06-01 09:14:48] [INFO ] Flatten gal took : 25 ms
Converted graph to binary with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202405141337/bin/convert-linux64' '-i' '/tmp/graph8300858491023467197.txt' '-o' '/tmp/graph8300858491023467197.bin' '-w' '/tmp/graph8300858491023467197.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202405141337/bin/louvain-linux64' '/tmp/graph8300858491023467197.bin' '-l' '-1' '-v' '-w' '/tmp/graph8300858491023467197.weights' '-q' '0' '-e' '0.001'
[2025-06-01 09:14:49] [INFO ] Decomposing Gal with order
[2025-06-01 09:14:49] [INFO ] Rewriting arrays to variables to allow decomposition.
[2025-06-01 09:14:49] [INFO ] Removed a total of 467 redundant transitions.
[2025-06-01 09:14:49] [INFO ] Flatten gal took : 167 ms
[2025-06-01 09:14:49] [INFO ] Fuse similar labels procedure discarded/fused a total of 168 labels/synchronizations in 57 ms.
[2025-06-01 09:14:49] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality9851248842697531031.gal : 8 ms
[2025-06-01 09:14:49] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality4524292855129548022.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/ReachabilityCardinality9851248842697531031.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality4524292855129548022.prop' '--nowitness'

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 ...307
Loading property file /tmp/ReachabilityCardinality4524292855129548022.prop.
Detected timeout of ITS tools.
[2025-06-01 09:14:55] [INFO ] Flatten gal took : 6 ms
[2025-06-01 09:14:55] [INFO ] Applying decomposition
[2025-06-01 09:14:55] [INFO ] Flatten gal took : 7 ms
Converted graph to binary with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202405141337/bin/convert-linux64' '-i' '/tmp/graph9526342772938787154.txt' '-o' '/tmp/graph9526342772938787154.bin' '-w' '/tmp/graph9526342772938787154.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202405141337/bin/louvain-linux64' '/tmp/graph9526342772938787154.bin' '-l' '-1' '-v' '-w' '/tmp/graph9526342772938787154.weights' '-q' '0' '-e' '0.001'
[2025-06-01 09:14:55] [INFO ] Decomposing Gal with order
[2025-06-01 09:14:55] [INFO ] Rewriting arrays to variables to allow decomposition.
[2025-06-01 09:14:55] [INFO ] Removed a total of 116 redundant transitions.
[2025-06-01 09:14:55] [INFO ] Flatten gal took : 38 ms
[2025-06-01 09:14:55] [INFO ] Fuse similar labels procedure discarded/fused a total of 12 labels/synchronizations in 3 ms.
[2025-06-01 09:14:55] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality17005389805015522002.gal : 29 ms
[2025-06-01 09:14:55] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality14996832123361040690.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/ReachabilityCardinality17005389805015522002.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality14996832123361040690.prop' '--nowitness'

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 ...309
Loading property file /tmp/ReachabilityCardinality14996832123361040690.prop.
SDD proceeding with computation,5 properties remain. new max is 4
SDD size :1 after 5
SDD proceeding with computation,5 properties remain. new max is 8
SDD size :5 after 10
SDD proceeding with computation,5 properties remain. new max is 16
SDD size :10 after 19
SDD proceeding with computation,5 properties remain. new max is 32
SDD size :19 after 126
SDD proceeding with computation,5 properties remain. new max is 64
SDD size :126 after 36499
SDD proceeding with computation,5 properties remain. new max is 128
SDD size :36499 after 1.24047e+09
Detected timeout of ITS tools.
Over-approximation ignoring read arcs solved 0 properties in 30937 ms.
ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
Current structural bounds on expressions (After reachability solving 0 queries.) : Max Seen:[49869, 599, 377, 77, 83] Max Struct:[+inf, +inf, +inf, +inf, +inf]
Starting property specific reduction for FunctionPointer-PT-b032-UpperBounds-03
Current structural bounds on expressions (Initially) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (Adding known information on max bounds.) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (Before main loop) : Max Seen:[0] Max Struct:[+inf]
[2025-06-01 09:15:10] [INFO ] Flow matrix only has 177 transitions (discarded 95 similar events)
// Phase 1: matrix 177 rows 111 cols
[2025-06-01 09:15:10] [INFO ] Computed 3 invariants in 1 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[+inf]
RANDOM walk for 10000 steps (2 resets) in 17 ms. (555 steps per ms)
BEST_FIRST walk for 10001 steps (2 resets) in 17 ms. (555 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0] Max Struct:[+inf]
[2025-06-01 09:15:10] [INFO ] Flow matrix only has 177 transitions (discarded 95 similar events)
[2025-06-01 09:15:10] [INFO ] Invariant cache hit.
[2025-06-01 09:15:10] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 09:15:10] [INFO ] [Real]Absence check using state equation in 59 ms returned sat
[2025-06-01 09:15:10] [INFO ] State equation strengthened by 28 read => feed constraints.
[2025-06-01 09:15:10] [INFO ] [Real]Added 28 Read/Feed constraints in 8 ms returned sat
[2025-06-01 09:15:10] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 09:15:10] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 09:15:10] [INFO ] [Nat]Absence check using state equation in 57 ms returned sat
[2025-06-01 09:15:10] [INFO ] [Nat]Added 28 Read/Feed constraints in 9 ms returned sat
[2025-06-01 09:15:10] [INFO ] Computed and/alt/rep : 75/405/72 causal constraints (skipped 103 transitions) in 16 ms.
[2025-06-01 09:15:10] [INFO ] Added : 29 causal constraints over 7 iterations in 123 ms. Result :sat
Minimization took 46 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0] Max Struct:[+inf]
Support contains 1 out of 111 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 111/111 places, 272/272 transitions.
Discarding 3 places :
Symmetric choice reduction at 0 with 3 rule applications. Total rules 3 place count 108 transition count 264
Iterating global reduction 0 with 3 rules applied. Total rules applied 6 place count 108 transition count 264
Discarding 3 places :
Symmetric choice reduction at 0 with 3 rule applications. Total rules 9 place count 105 transition count 256
Iterating global reduction 0 with 3 rules applied. Total rules applied 12 place count 105 transition count 256
Discarding 3 places :
Symmetric choice reduction at 0 with 3 rule applications. Total rules 15 place count 102 transition count 248
Iterating global reduction 0 with 3 rules applied. Total rules applied 18 place count 102 transition count 248
Discarding 3 places :
Symmetric choice reduction at 0 with 3 rule applications. Total rules 21 place count 99 transition count 240
Iterating global reduction 0 with 3 rules applied. Total rules applied 24 place count 99 transition count 240
Discarding 3 places :
Symmetric choice reduction at 0 with 3 rule applications. Total rules 27 place count 96 transition count 234
Iterating global reduction 0 with 3 rules applied. Total rules applied 30 place count 96 transition count 234
Discarding 3 places :
Symmetric choice reduction at 0 with 3 rule applications. Total rules 33 place count 93 transition count 228
Iterating global reduction 0 with 3 rules applied. Total rules applied 36 place count 93 transition count 228
Discarding 2 places :
Symmetric choice reduction at 0 with 2 rule applications. Total rules 38 place count 91 transition count 224
Iterating global reduction 0 with 2 rules applied. Total rules applied 40 place count 91 transition count 224
Discarding 2 places :
Symmetric choice reduction at 0 with 2 rule applications. Total rules 42 place count 89 transition count 220
Iterating global reduction 0 with 2 rules applied. Total rules applied 44 place count 89 transition count 220
Discarding 2 places :
Symmetric choice reduction at 0 with 2 rule applications. Total rules 46 place count 87 transition count 216
Iterating global reduction 0 with 2 rules applied. Total rules applied 48 place count 87 transition count 216
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 49 place count 86 transition count 214
Iterating global reduction 0 with 1 rules applied. Total rules applied 50 place count 86 transition count 214
Applied a total of 50 rules in 35 ms. Remains 86 /111 variables (removed 25) and now considering 214/272 (removed 58) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 35 ms. Remains : 86/111 places, 214/272 transitions.
[2025-06-01 09:15:10] [INFO ] Flow matrix only has 133 transitions (discarded 81 similar events)
Found an invariant !
This invariant on transitions {27=1, 62=1, 94=1, 128=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {30=1, 65=1, 97=1, 128=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 30 ms. (steps per millisecond=333 ) properties (out of 1) seen :[27]
Current structural bounds on expressions (after cover walk) : Max Seen:[27] Max Struct:[+inf]
[2025-06-01 09:15:10] [INFO ] Flow matrix only has 133 transitions (discarded 81 similar events)
// Phase 1: matrix 133 rows 86 cols
[2025-06-01 09:15:10] [INFO ] Computed 3 invariants in 1 ms
Current structural bounds on expressions (after invariants) : Max Seen:[27] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 1348 ms. (741 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 866 ms. (1153 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[7702] Max Struct:[+inf]
[2025-06-01 09:15:13] [INFO ] Flow matrix only has 133 transitions (discarded 81 similar events)
[2025-06-01 09:15:13] [INFO ] Invariant cache hit.
[2025-06-01 09:15:13] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 09:15:13] [INFO ] [Real]Absence check using state equation in 94 ms returned sat
[2025-06-01 09:15:13] [INFO ] State equation strengthened by 19 read => feed constraints.
[2025-06-01 09:15:13] [INFO ] [Real]Added 19 Read/Feed constraints in 6 ms returned sat
[2025-06-01 09:15:13] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 09:15:13] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 09:15:13] [INFO ] [Nat]Absence check using state equation in 52 ms returned sat
[2025-06-01 09:15:13] [INFO ] [Nat]Added 19 Read/Feed constraints in 5 ms returned sat
[2025-06-01 09:15:13] [INFO ] Computed and/alt/rep : 63/212/57 causal constraints (skipped 74 transitions) in 13 ms.
[2025-06-01 09:15:13] [INFO ] Added : 22 causal constraints over 5 iterations in 88 ms. Result :sat
Minimization took 41 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[7702] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[139644] Max Struct:[+inf]
Support contains 1 out of 86 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 86/86 places, 214/214 transitions.
Applied a total of 0 rules in 7 ms. Remains 86 /86 variables (removed 0) and now considering 214/214 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 7 ms. Remains : 86/86 places, 214/214 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 86/86 places, 214/214 transitions.
Applied a total of 0 rules in 8 ms. Remains 86 /86 variables (removed 0) and now considering 214/214 (removed 0) transitions.
[2025-06-01 09:15:43] [INFO ] Flow matrix only has 133 transitions (discarded 81 similar events)
[2025-06-01 09:15:43] [INFO ] Invariant cache hit.
[2025-06-01 09:15:43] [INFO ] Implicit Places using invariants in 105 ms returned []
[2025-06-01 09:15:43] [INFO ] Flow matrix only has 133 transitions (discarded 81 similar events)
[2025-06-01 09:15:43] [INFO ] Invariant cache hit.
[2025-06-01 09:15:43] [INFO ] State equation strengthened by 19 read => feed constraints.
[2025-06-01 09:15:43] [INFO ] Implicit Places using invariants and state equation in 187 ms returned []
Implicit Place search using SMT with State Equation took 293 ms to find 0 implicit places.
[2025-06-01 09:15:43] [INFO ] Redundant transitions in 1 ms returned []
Running 212 sub problems to find dead transitions.
[2025-06-01 09:15:43] [INFO ] Flow matrix only has 133 transitions (discarded 81 similar events)
[2025-06-01 09:15:43] [INFO ] Invariant cache hit.
[2025-06-01 09:15:43] [INFO ] State equation strengthened by 19 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/85 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 212 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/85 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 212 unsolved
At refinement iteration 2 (OVERLAPS) 133/218 variables, 85/88 constraints. Problems are: Problem set: 0 solved, 212 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/218 variables, 19/107 constraints. Problems are: Problem set: 0 solved, 212 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/218 variables, 0/107 constraints. Problems are: Problem set: 0 solved, 212 unsolved
At refinement iteration 5 (OVERLAPS) 1/219 variables, 1/108 constraints. Problems are: Problem set: 0 solved, 212 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/219 variables, 0/108 constraints. Problems are: Problem set: 0 solved, 212 unsolved
At refinement iteration 7 (OVERLAPS) 0/219 variables, 0/108 constraints. Problems are: Problem set: 0 solved, 212 unsolved
No progress, stopping.
After SMT solving in domain Real declared 219/219 variables, and 108 constraints, problems are : Problem set: 0 solved, 212 unsolved in 6782 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 86/86 constraints, ReadFeed: 19/19 constraints, PredecessorRefiner: 212/212 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 212 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/85 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 212 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/85 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 212 unsolved
At refinement iteration 2 (OVERLAPS) 133/218 variables, 85/88 constraints. Problems are: Problem set: 0 solved, 212 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/218 variables, 19/107 constraints. Problems are: Problem set: 0 solved, 212 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/218 variables, 32/139 constraints. Problems are: Problem set: 0 solved, 212 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/218 variables, 0/139 constraints. Problems are: Problem set: 0 solved, 212 unsolved
At refinement iteration 6 (OVERLAPS) 1/219 variables, 1/140 constraints. Problems are: Problem set: 0 solved, 212 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/219 variables, 180/320 constraints. Problems are: Problem set: 0 solved, 212 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/219 variables, 0/320 constraints. Problems are: Problem set: 0 solved, 212 unsolved
At refinement iteration 9 (OVERLAPS) 0/219 variables, 0/320 constraints. Problems are: Problem set: 0 solved, 212 unsolved
No progress, stopping.
After SMT solving in domain Int declared 219/219 variables, and 320 constraints, problems are : Problem set: 0 solved, 212 unsolved in 11443 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 86/86 constraints, ReadFeed: 19/19 constraints, PredecessorRefiner: 212/212 constraints, Known Traps: 0/0 constraints]
After SMT, in 18375ms problems are : Problem set: 0 solved, 212 unsolved
Search for dead transitions found 0 dead transitions in 18379ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 18686 ms. Remains : 86/86 places, 214/214 transitions.
[2025-06-01 09:16:02] [INFO ] Flow matrix only has 133 transitions (discarded 81 similar events)
Found an invariant !
This invariant on transitions {27=1, 62=1, 94=1, 128=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {30=1, 65=1, 97=1, 128=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 33 ms. (steps per millisecond=303 ) properties (out of 1) seen :[2147483647]
Current structural bounds on expressions (after cover walk) : Max Seen:[+inf] Max Struct:[+inf]
[2025-06-01 09:16:02] [INFO ] Flow matrix only has 133 transitions (discarded 81 similar events)
[2025-06-01 09:16:02] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[+inf] Max Struct:[+inf]
RANDOM walk for 1000001 steps (2 resets) in 1609 ms. (621 steps per ms)
FORMULA FunctionPointer-PT-b032-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 09:16:03] [INFO ] Flatten gal took : 14 ms
[2025-06-01 09:16:03] [INFO ] Flatten gal took : 11 ms
[2025-06-01 09:16:03] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality7777572983610417134.gal : 2 ms
[2025-06-01 09:16:03] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality4402376825302816867.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/ReachabilityCardinality7777572983610417134.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality4402376825302816867.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202405141337/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...328
ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
Current structural bounds on expressions (After reachability solving 0 queries.) : Max Seen:[] Max Struct:[]
Ending property specific reduction for FunctionPointer-PT-b032-UpperBounds-03 in 53746 ms.
Starting property specific reduction for FunctionPointer-PT-b032-UpperBounds-04
Current structural bounds on expressions (Initially) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (Adding known information on max bounds.) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (Before main loop) : Max Seen:[0] Max Struct:[+inf]
[2025-06-01 09:16:04] [INFO ] Flow matrix only has 177 transitions (discarded 95 similar events)
// Phase 1: matrix 177 rows 111 cols
[2025-06-01 09:16:04] [INFO ] Computed 3 invariants in 1 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[+inf]
RANDOM walk for 10000 steps (2 resets) in 15 ms. (625 steps per ms)
BEST_FIRST walk for 10001 steps (2 resets) in 9 ms. (1000 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[3] Max Struct:[+inf]
[2025-06-01 09:16:04] [INFO ] Flow matrix only has 177 transitions (discarded 95 similar events)
[2025-06-01 09:16:04] [INFO ] Invariant cache hit.
[2025-06-01 09:16:04] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 09:16:04] [INFO ] [Real]Absence check using state equation in 61 ms returned sat
[2025-06-01 09:16:04] [INFO ] State equation strengthened by 28 read => feed constraints.
[2025-06-01 09:16:04] [INFO ] [Real]Added 28 Read/Feed constraints in 9 ms returned sat
[2025-06-01 09:16:04] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 09:16:04] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 09:16:04] [INFO ] [Nat]Absence check using state equation in 76 ms returned sat
[2025-06-01 09:16:04] [INFO ] [Nat]Added 28 Read/Feed constraints in 15 ms returned sat
[2025-06-01 09:16:04] [INFO ] Deduced a trap composed of 29 places in 89 ms of which 6 ms to minimize.
[2025-06-01 09:16:04] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 110 ms
[2025-06-01 09:16:04] [INFO ] Computed and/alt/rep : 75/405/72 causal constraints (skipped 103 transitions) in 16 ms.
[2025-06-01 09:16:04] [INFO ] Added : 27 causal constraints over 6 iterations in 148 ms. Result :sat
Minimization took 77 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[3] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[3] Max Struct:[+inf]
Support contains 1 out of 111 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 111/111 places, 272/272 transitions.
Graph (complete) has 469 edges and 111 vertex of which 110 are kept as prefixes of interest. Removing 1 places using SCC suffix rule.0 ms
Discarding 1 places :
Also discarding 0 output transitions
Discarding 3 places :
Symmetric choice reduction at 0 with 3 rule applications. Total rules 4 place count 107 transition count 264
Iterating global reduction 0 with 3 rules applied. Total rules applied 7 place count 107 transition count 264
Discarding 3 places :
Symmetric choice reduction at 0 with 3 rule applications. Total rules 10 place count 104 transition count 256
Iterating global reduction 0 with 3 rules applied. Total rules applied 13 place count 104 transition count 256
Discarding 3 places :
Symmetric choice reduction at 0 with 3 rule applications. Total rules 16 place count 101 transition count 248
Iterating global reduction 0 with 3 rules applied. Total rules applied 19 place count 101 transition count 248
Discarding 3 places :
Symmetric choice reduction at 0 with 3 rule applications. Total rules 22 place count 98 transition count 238
Iterating global reduction 0 with 3 rules applied. Total rules applied 25 place count 98 transition count 238
Discarding 3 places :
Symmetric choice reduction at 0 with 3 rule applications. Total rules 28 place count 95 transition count 232
Iterating global reduction 0 with 3 rules applied. Total rules applied 31 place count 95 transition count 232
Discarding 3 places :
Symmetric choice reduction at 0 with 3 rule applications. Total rules 34 place count 92 transition count 224
Iterating global reduction 0 with 3 rules applied. Total rules applied 37 place count 92 transition count 224
Discarding 3 places :
Symmetric choice reduction at 0 with 3 rule applications. Total rules 40 place count 89 transition count 218
Iterating global reduction 0 with 3 rules applied. Total rules applied 43 place count 89 transition count 218
Discarding 3 places :
Symmetric choice reduction at 0 with 3 rule applications. Total rules 46 place count 86 transition count 212
Iterating global reduction 0 with 3 rules applied. Total rules applied 49 place count 86 transition count 212
Discarding 3 places :
Symmetric choice reduction at 0 with 3 rule applications. Total rules 52 place count 83 transition count 206
Iterating global reduction 0 with 3 rules applied. Total rules applied 55 place count 83 transition count 206
Discarding 2 places :
Symmetric choice reduction at 0 with 2 rule applications. Total rules 57 place count 81 transition count 202
Iterating global reduction 0 with 2 rules applied. Total rules applied 59 place count 81 transition count 202
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 60 place count 80 transition count 200
Iterating global reduction 0 with 1 rules applied. Total rules applied 61 place count 80 transition count 200
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 62 place count 79 transition count 198
Iterating global reduction 0 with 1 rules applied. Total rules applied 63 place count 79 transition count 198
Applied a total of 63 rules in 24 ms. Remains 79 /111 variables (removed 32) and now considering 198/272 (removed 74) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 24 ms. Remains : 79/111 places, 198/272 transitions.
[2025-06-01 09:16:04] [INFO ] Flow matrix only has 122 transitions (discarded 76 similar events)
Found an invariant !
This invariant on transitions {31=1, 60=1, 106=1, 121=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {30=1, 59=1, 105=1, 120=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 31 ms. (steps per millisecond=322 ) properties (out of 1) seen :[10]
Current structural bounds on expressions (after cover walk) : Max Seen:[10] Max Struct:[+inf]
[2025-06-01 09:16:04] [INFO ] Flow matrix only has 122 transitions (discarded 76 similar events)
// Phase 1: matrix 122 rows 79 cols
[2025-06-01 09:16:04] [INFO ] Computed 3 invariants in 1 ms
Current structural bounds on expressions (after invariants) : Max Seen:[10] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 1642 ms. (608 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 792 ms. (1261 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[758] Max Struct:[+inf]
[2025-06-01 09:16:07] [INFO ] Flow matrix only has 122 transitions (discarded 76 similar events)
[2025-06-01 09:16:07] [INFO ] Invariant cache hit.
[2025-06-01 09:16:07] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 09:16:07] [INFO ] [Real]Absence check using state equation in 42 ms returned sat
[2025-06-01 09:16:07] [INFO ] State equation strengthened by 18 read => feed constraints.
[2025-06-01 09:16:07] [INFO ] [Real]Added 18 Read/Feed constraints in 4 ms returned sat
[2025-06-01 09:16:07] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 09:16:07] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 09:16:07] [INFO ] [Nat]Absence check using state equation in 85 ms returned sat
[2025-06-01 09:16:07] [INFO ] [Nat]Added 18 Read/Feed constraints in 10 ms returned sat
[2025-06-01 09:16:07] [INFO ] Computed and/alt/rep : 59/192/53 causal constraints (skipped 67 transitions) in 19 ms.
[2025-06-01 09:16:07] [INFO ] Added : 15 causal constraints over 4 iterations in 108 ms. Result :sat
Minimization took 38 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[758] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[758] Max Struct:[+inf]
Support contains 1 out of 79 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 79/79 places, 198/198 transitions.
Applied a total of 0 rules in 14 ms. Remains 79 /79 variables (removed 0) and now considering 198/198 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 14 ms. Remains : 79/79 places, 198/198 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 79/79 places, 198/198 transitions.
Applied a total of 0 rules in 3 ms. Remains 79 /79 variables (removed 0) and now considering 198/198 (removed 0) transitions.
[2025-06-01 09:16:07] [INFO ] Flow matrix only has 122 transitions (discarded 76 similar events)
[2025-06-01 09:16:07] [INFO ] Invariant cache hit.
[2025-06-01 09:16:07] [INFO ] Implicit Places using invariants in 112 ms returned []
[2025-06-01 09:16:07] [INFO ] Flow matrix only has 122 transitions (discarded 76 similar events)
[2025-06-01 09:16:07] [INFO ] Invariant cache hit.
[2025-06-01 09:16:07] [INFO ] State equation strengthened by 18 read => feed constraints.
[2025-06-01 09:16:08] [INFO ] Implicit Places using invariants and state equation in 305 ms returned []
Implicit Place search using SMT with State Equation took 432 ms to find 0 implicit places.
[2025-06-01 09:16:08] [INFO ] Redundant transitions in 1 ms returned []
Running 196 sub problems to find dead transitions.
[2025-06-01 09:16:08] [INFO ] Flow matrix only has 122 transitions (discarded 76 similar events)
[2025-06-01 09:16:08] [INFO ] Invariant cache hit.
[2025-06-01 09:16:08] [INFO ] State equation strengthened by 18 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/79 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 196 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/79 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 196 unsolved
At refinement iteration 2 (OVERLAPS) 122/201 variables, 79/82 constraints. Problems are: Problem set: 0 solved, 196 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/201 variables, 18/100 constraints. Problems are: Problem set: 0 solved, 196 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/201 variables, 0/100 constraints. Problems are: Problem set: 0 solved, 196 unsolved
At refinement iteration 5 (OVERLAPS) 0/201 variables, 0/100 constraints. Problems are: Problem set: 0 solved, 196 unsolved
No progress, stopping.
After SMT solving in domain Real declared 201/201 variables, and 100 constraints, problems are : Problem set: 0 solved, 196 unsolved in 5341 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 79/79 constraints, ReadFeed: 18/18 constraints, PredecessorRefiner: 196/196 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 196 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/79 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 196 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/79 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 196 unsolved
At refinement iteration 2 (OVERLAPS) 122/201 variables, 79/82 constraints. Problems are: Problem set: 0 solved, 196 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/201 variables, 18/100 constraints. Problems are: Problem set: 0 solved, 196 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/201 variables, 196/296 constraints. Problems are: Problem set: 0 solved, 196 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/201 variables, 0/296 constraints. Problems are: Problem set: 0 solved, 196 unsolved
At refinement iteration 6 (OVERLAPS) 0/201 variables, 0/296 constraints. Problems are: Problem set: 0 solved, 196 unsolved
No progress, stopping.
After SMT solving in domain Int declared 201/201 variables, and 296 constraints, problems are : Problem set: 0 solved, 196 unsolved in 8342 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 79/79 constraints, ReadFeed: 18/18 constraints, PredecessorRefiner: 196/196 constraints, Known Traps: 0/0 constraints]
After SMT, in 13865ms problems are : Problem set: 0 solved, 196 unsolved
Search for dead transitions found 0 dead transitions in 13870ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 14332 ms. Remains : 79/79 places, 198/198 transitions.
[2025-06-01 09:16:21] [INFO ] Flow matrix only has 122 transitions (discarded 76 similar events)
Found an invariant !
This invariant on transitions {31=1, 60=1, 106=1, 121=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {30=1, 59=1, 105=1, 120=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 50 ms. (steps per millisecond=200 ) properties (out of 1) seen :[7]
Current structural bounds on expressions (after cover walk) : Max Seen:[758] Max Struct:[+inf]
[2025-06-01 09:16:22] [INFO ] Flow matrix only has 122 transitions (discarded 76 similar events)
[2025-06-01 09:16:22] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[758] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 1464 ms. (682 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 778 ms. (1283 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[764] Max Struct:[+inf]
[2025-06-01 09:16:24] [INFO ] Flow matrix only has 122 transitions (discarded 76 similar events)
[2025-06-01 09:16:24] [INFO ] Invariant cache hit.
[2025-06-01 09:16:24] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 09:16:24] [INFO ] [Real]Absence check using state equation in 43 ms returned sat
[2025-06-01 09:16:24] [INFO ] State equation strengthened by 18 read => feed constraints.
[2025-06-01 09:16:24] [INFO ] [Real]Added 18 Read/Feed constraints in 6 ms returned sat
[2025-06-01 09:16:24] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 09:16:24] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 09:16:24] [INFO ] [Nat]Absence check using state equation in 42 ms returned sat
[2025-06-01 09:16:24] [INFO ] [Nat]Added 18 Read/Feed constraints in 5 ms returned sat
[2025-06-01 09:16:24] [INFO ] Computed and/alt/rep : 59/192/53 causal constraints (skipped 67 transitions) in 9 ms.
[2025-06-01 09:16:24] [INFO ] Added : 15 causal constraints over 4 iterations in 57 ms. Result :sat
Minimization took 29 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[764] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[764] Max Struct:[+inf]
Support contains 1 out of 79 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 79/79 places, 198/198 transitions.
Applied a total of 0 rules in 3 ms. Remains 79 /79 variables (removed 0) and now considering 198/198 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 3 ms. Remains : 79/79 places, 198/198 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 79/79 places, 198/198 transitions.
Applied a total of 0 rules in 3 ms. Remains 79 /79 variables (removed 0) and now considering 198/198 (removed 0) transitions.
[2025-06-01 09:16:24] [INFO ] Flow matrix only has 122 transitions (discarded 76 similar events)
[2025-06-01 09:16:24] [INFO ] Invariant cache hit.
[2025-06-01 09:16:24] [INFO ] Implicit Places using invariants in 107 ms returned []
[2025-06-01 09:16:24] [INFO ] Flow matrix only has 122 transitions (discarded 76 similar events)
[2025-06-01 09:16:24] [INFO ] Invariant cache hit.
[2025-06-01 09:16:24] [INFO ] State equation strengthened by 18 read => feed constraints.
[2025-06-01 09:16:24] [INFO ] Implicit Places using invariants and state equation in 203 ms returned []
Implicit Place search using SMT with State Equation took 312 ms to find 0 implicit places.
[2025-06-01 09:16:24] [INFO ] Redundant transitions in 1 ms returned []
Running 196 sub problems to find dead transitions.
[2025-06-01 09:16:24] [INFO ] Flow matrix only has 122 transitions (discarded 76 similar events)
[2025-06-01 09:16:24] [INFO ] Invariant cache hit.
[2025-06-01 09:16:24] [INFO ] State equation strengthened by 18 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/79 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 196 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/79 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 196 unsolved
At refinement iteration 2 (OVERLAPS) 122/201 variables, 79/82 constraints. Problems are: Problem set: 0 solved, 196 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/201 variables, 18/100 constraints. Problems are: Problem set: 0 solved, 196 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/201 variables, 0/100 constraints. Problems are: Problem set: 0 solved, 196 unsolved
At refinement iteration 5 (OVERLAPS) 0/201 variables, 0/100 constraints. Problems are: Problem set: 0 solved, 196 unsolved
No progress, stopping.
After SMT solving in domain Real declared 201/201 variables, and 100 constraints, problems are : Problem set: 0 solved, 196 unsolved in 4341 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 79/79 constraints, ReadFeed: 18/18 constraints, PredecessorRefiner: 196/196 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 196 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/79 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 196 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/79 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 196 unsolved
At refinement iteration 2 (OVERLAPS) 122/201 variables, 79/82 constraints. Problems are: Problem set: 0 solved, 196 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/201 variables, 18/100 constraints. Problems are: Problem set: 0 solved, 196 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/201 variables, 196/296 constraints. Problems are: Problem set: 0 solved, 196 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/201 variables, 0/296 constraints. Problems are: Problem set: 0 solved, 196 unsolved
At refinement iteration 6 (OVERLAPS) 0/201 variables, 0/296 constraints. Problems are: Problem set: 0 solved, 196 unsolved
No progress, stopping.
After SMT solving in domain Int declared 201/201 variables, and 296 constraints, problems are : Problem set: 0 solved, 196 unsolved in 7780 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 79/79 constraints, ReadFeed: 18/18 constraints, PredecessorRefiner: 196/196 constraints, Known Traps: 0/0 constraints]
After SMT, in 12325ms problems are : Problem set: 0 solved, 196 unsolved
Search for dead transitions found 0 dead transitions in 12328ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 12653 ms. Remains : 79/79 places, 198/198 transitions.
[2025-06-01 09:16:37] [INFO ] Flow matrix only has 122 transitions (discarded 76 similar events)
Found an invariant !
This invariant on transitions {31=1, 60=1, 106=1, 121=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {30=1, 59=1, 105=1, 120=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 29 ms. (steps per millisecond=344 ) properties (out of 1) seen :[7]
Current structural bounds on expressions (after cover walk) : Max Seen:[764] Max Struct:[+inf]
[2025-06-01 09:16:37] [INFO ] Flow matrix only has 122 transitions (discarded 76 similar events)
[2025-06-01 09:16:37] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[764] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 1314 ms. (760 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 775 ms. (1288 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[764] Max Struct:[+inf]
[2025-06-01 09:16:39] [INFO ] Flow matrix only has 122 transitions (discarded 76 similar events)
[2025-06-01 09:16:39] [INFO ] Invariant cache hit.
[2025-06-01 09:16:39] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 09:16:39] [INFO ] [Real]Absence check using state equation in 41 ms returned sat
[2025-06-01 09:16:39] [INFO ] State equation strengthened by 18 read => feed constraints.
[2025-06-01 09:16:39] [INFO ] [Real]Added 18 Read/Feed constraints in 5 ms returned sat
[2025-06-01 09:16:39] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 09:16:39] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 09:16:39] [INFO ] [Nat]Absence check using state equation in 39 ms returned sat
[2025-06-01 09:16:39] [INFO ] [Nat]Added 18 Read/Feed constraints in 4 ms returned sat
[2025-06-01 09:16:39] [INFO ] Computed and/alt/rep : 59/192/53 causal constraints (skipped 67 transitions) in 9 ms.
[2025-06-01 09:16:39] [INFO ] Added : 15 causal constraints over 4 iterations in 57 ms. Result :sat
Minimization took 29 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[764] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[764] Max Struct:[+inf]
Support contains 1 out of 79 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 79/79 places, 198/198 transitions.
Applied a total of 0 rules in 3 ms. Remains 79 /79 variables (removed 0) and now considering 198/198 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 3 ms. Remains : 79/79 places, 198/198 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 79/79 places, 198/198 transitions.
Applied a total of 0 rules in 3 ms. Remains 79 /79 variables (removed 0) and now considering 198/198 (removed 0) transitions.
[2025-06-01 09:16:39] [INFO ] Flow matrix only has 122 transitions (discarded 76 similar events)
[2025-06-01 09:16:39] [INFO ] Invariant cache hit.
[2025-06-01 09:16:39] [INFO ] Implicit Places using invariants in 87 ms returned []
[2025-06-01 09:16:39] [INFO ] Flow matrix only has 122 transitions (discarded 76 similar events)
[2025-06-01 09:16:39] [INFO ] Invariant cache hit.
[2025-06-01 09:16:39] [INFO ] State equation strengthened by 18 read => feed constraints.
[2025-06-01 09:16:40] [INFO ] Implicit Places using invariants and state equation in 167 ms returned []
Implicit Place search using SMT with State Equation took 283 ms to find 0 implicit places.
[2025-06-01 09:16:40] [INFO ] Redundant transitions in 1 ms returned []
Running 196 sub problems to find dead transitions.
[2025-06-01 09:16:40] [INFO ] Flow matrix only has 122 transitions (discarded 76 similar events)
[2025-06-01 09:16:40] [INFO ] Invariant cache hit.
[2025-06-01 09:16:40] [INFO ] State equation strengthened by 18 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/79 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 196 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/79 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 196 unsolved
At refinement iteration 2 (OVERLAPS) 122/201 variables, 79/82 constraints. Problems are: Problem set: 0 solved, 196 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/201 variables, 18/100 constraints. Problems are: Problem set: 0 solved, 196 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/201 variables, 0/100 constraints. Problems are: Problem set: 0 solved, 196 unsolved
At refinement iteration 5 (OVERLAPS) 0/201 variables, 0/100 constraints. Problems are: Problem set: 0 solved, 196 unsolved
No progress, stopping.
After SMT solving in domain Real declared 201/201 variables, and 100 constraints, problems are : Problem set: 0 solved, 196 unsolved in 5352 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 79/79 constraints, ReadFeed: 18/18 constraints, PredecessorRefiner: 196/196 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 196 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/79 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 196 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/79 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 196 unsolved
At refinement iteration 2 (OVERLAPS) 122/201 variables, 79/82 constraints. Problems are: Problem set: 0 solved, 196 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/201 variables, 18/100 constraints. Problems are: Problem set: 0 solved, 196 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/201 variables, 196/296 constraints. Problems are: Problem set: 0 solved, 196 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/201 variables, 0/296 constraints. Problems are: Problem set: 0 solved, 196 unsolved
At refinement iteration 6 (OVERLAPS) 0/201 variables, 0/296 constraints. Problems are: Problem set: 0 solved, 196 unsolved
No progress, stopping.
After SMT solving in domain Int declared 201/201 variables, and 296 constraints, problems are : Problem set: 0 solved, 196 unsolved in 7545 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 79/79 constraints, ReadFeed: 18/18 constraints, PredecessorRefiner: 196/196 constraints, Known Traps: 0/0 constraints]
After SMT, in 13025ms problems are : Problem set: 0 solved, 196 unsolved
Search for dead transitions found 0 dead transitions in 13028ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 13322 ms. Remains : 79/79 places, 198/198 transitions.
[2025-06-01 09:16:53] [INFO ] Flow matrix only has 122 transitions (discarded 76 similar events)
Found an invariant !
This invariant on transitions {31=1, 60=1, 106=1, 121=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {30=1, 59=1, 105=1, 120=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 29 ms. (steps per millisecond=344 ) properties (out of 1) seen :[8]
Current structural bounds on expressions (after cover walk) : Max Seen:[764] Max Struct:[+inf]
RANDOM walk for 40000 steps (8 resets) in 217 ms. (183 steps per ms) remains 1/1 properties
[2025-06-01 09:16:53] [INFO ] Flatten gal took : 57 ms
BEST_FIRST walk for 40004 steps (8 resets) in 41 ms. (952 steps per ms) remains 1/1 properties
[2025-06-01 09:16:53] [INFO ] Flatten gal took : 30 ms
[2025-06-01 09:16:53] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality12930180412212737155.gal : 11 ms
[2025-06-01 09:16:53] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality5241400089924522283.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/ReachabilityCardinality12930180412212737155.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality5241400089924522283.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202405141337/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...329
Loading property file /tmp/ReachabilityCardinality5241400089924522283.prop.
SDD proceeding with computation,1 properties remain. new max is 4
SDD size :1 after 31
SDD proceeding with computation,1 properties remain. new max is 8
SDD size :31 after 1040
SDD proceeding with computation,1 properties remain. new max is 16
SDD size :1040 after 155244
SDD proceeding with computation,1 properties remain. new max is 32
SDD size :155244 after 1.77406e+08
Interrupted probabilistic random walk after 1711106 steps, run timeout after 3001 ms. (steps per millisecond=570 ) properties seen :0 out of 1
Probabilistic random walk after 1711106 steps, saw 1064974 distinct states, run finished after 3001 ms. (steps per millisecond=570 ) properties seen :0
[2025-06-01 09:16:56] [INFO ] Flow matrix only has 122 transitions (discarded 76 similar events)
[2025-06-01 09:16:56] [INFO ] Invariant cache hit.
[2025-06-01 09:16:56] [INFO ] State equation strengthened by 18 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 3/4 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/4 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 71/75 variables, 6/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/75 variables, 1/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/75 variables, 0/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (OVERLAPS) 7/82 variables, 2/10 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/82 variables, 3/13 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/82 variables, 0/13 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 100/182 variables, 57/70 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/182 variables, 17/87 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/182 variables, 0/87 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 6/188 variables, 1/88 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/188 variables, 0/88 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 10/198 variables, 10/98 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/198 variables, 0/98 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 3/201 variables, 2/100 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/201 variables, 0/100 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 0/201 variables, 0/100 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 201/201 variables, and 100 constraints, problems are : Problem set: 0 solved, 1 unsolved in 134 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 79/79 constraints, ReadFeed: 18/18 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 3/4 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/4 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 71/75 variables, 6/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/75 variables, 1/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/75 variables, 1/9 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/75 variables, 0/9 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 7/82 variables, 2/11 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/82 variables, 3/14 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/82 variables, 0/14 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 100/182 variables, 57/71 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/182 variables, 17/88 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/182 variables, 0/88 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 6/188 variables, 1/89 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/188 variables, 0/89 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 10/198 variables, 10/99 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/198 variables, 0/99 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 3/201 variables, 2/101 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/201 variables, 0/101 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 0/201 variables, 0/101 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 201/201 variables, and 101 constraints, problems are : Problem set: 0 solved, 1 unsolved in 122 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 79/79 constraints, ReadFeed: 18/18 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
After SMT, in 259ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 1 ms.
Support contains 1 out of 79 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 79/79 places, 198/198 transitions.
Applied a total of 0 rules in 3 ms. Remains 79 /79 variables (removed 0) and now considering 198/198 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 3 ms. Remains : 79/79 places, 198/198 transitions.
RANDOM walk for 40001 steps (8 resets) in 98 ms. (404 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (8 resets) in 37 ms. (1052 steps per ms) remains 1/1 properties
SDD proceeding with computation,1 properties remain. new max is 64
SDD size :1.77406e+08 after 2.77281e+12
Interrupted probabilistic random walk after 1825480 steps, run timeout after 3001 ms. (steps per millisecond=608 ) properties seen :0 out of 1
Probabilistic random walk after 1825480 steps, saw 1136167 distinct states, run finished after 3001 ms. (steps per millisecond=608 ) properties seen :0
[2025-06-01 09:16:59] [INFO ] Flow matrix only has 122 transitions (discarded 76 similar events)
[2025-06-01 09:16:59] [INFO ] Invariant cache hit.
[2025-06-01 09:16:59] [INFO ] State equation strengthened by 18 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 3/4 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/4 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 71/75 variables, 6/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/75 variables, 1/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/75 variables, 0/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (OVERLAPS) 7/82 variables, 2/10 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/82 variables, 3/13 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/82 variables, 0/13 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 100/182 variables, 57/70 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/182 variables, 17/87 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/182 variables, 0/87 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 6/188 variables, 1/88 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/188 variables, 0/88 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 10/198 variables, 10/98 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/198 variables, 0/98 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 3/201 variables, 2/100 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/201 variables, 0/100 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 0/201 variables, 0/100 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 201/201 variables, and 100 constraints, problems are : Problem set: 0 solved, 1 unsolved in 129 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 79/79 constraints, ReadFeed: 18/18 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 3/4 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/4 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 71/75 variables, 6/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/75 variables, 1/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/75 variables, 1/9 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/75 variables, 0/9 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 7/82 variables, 2/11 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/82 variables, 3/14 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/82 variables, 0/14 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 100/182 variables, 57/71 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/182 variables, 17/88 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/182 variables, 0/88 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 6/188 variables, 1/89 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/188 variables, 0/89 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 10/198 variables, 10/99 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/198 variables, 0/99 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 3/201 variables, 2/101 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/201 variables, 0/101 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 0/201 variables, 0/101 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 201/201 variables, and 101 constraints, problems are : Problem set: 0 solved, 1 unsolved in 95 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 79/79 constraints, ReadFeed: 18/18 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
After SMT, in 239ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 0 ms.
Support contains 1 out of 79 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 79/79 places, 198/198 transitions.
Applied a total of 0 rules in 2 ms. Remains 79 /79 variables (removed 0) and now considering 198/198 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 3 ms. Remains : 79/79 places, 198/198 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 79/79 places, 198/198 transitions.
Applied a total of 0 rules in 3 ms. Remains 79 /79 variables (removed 0) and now considering 198/198 (removed 0) transitions.
[2025-06-01 09:16:59] [INFO ] Flow matrix only has 122 transitions (discarded 76 similar events)
[2025-06-01 09:16:59] [INFO ] Invariant cache hit.
[2025-06-01 09:16:59] [INFO ] Implicit Places using invariants in 102 ms returned []
[2025-06-01 09:16:59] [INFO ] Flow matrix only has 122 transitions (discarded 76 similar events)
[2025-06-01 09:16:59] [INFO ] Invariant cache hit.
[2025-06-01 09:17:00] [INFO ] State equation strengthened by 18 read => feed constraints.
[2025-06-01 09:17:00] [INFO ] Implicit Places using invariants and state equation in 157 ms returned []
Implicit Place search using SMT with State Equation took 259 ms to find 0 implicit places.
[2025-06-01 09:17:00] [INFO ] Redundant transitions in 0 ms returned []
Running 196 sub problems to find dead transitions.
[2025-06-01 09:17:00] [INFO ] Flow matrix only has 122 transitions (discarded 76 similar events)
[2025-06-01 09:17:00] [INFO ] Invariant cache hit.
[2025-06-01 09:17:00] [INFO ] State equation strengthened by 18 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/79 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 196 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/79 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 196 unsolved
At refinement iteration 2 (OVERLAPS) 122/201 variables, 79/82 constraints. Problems are: Problem set: 0 solved, 196 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/201 variables, 18/100 constraints. Problems are: Problem set: 0 solved, 196 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/201 variables, 0/100 constraints. Problems are: Problem set: 0 solved, 196 unsolved
At refinement iteration 5 (OVERLAPS) 0/201 variables, 0/100 constraints. Problems are: Problem set: 0 solved, 196 unsolved
No progress, stopping.
After SMT solving in domain Real declared 201/201 variables, and 100 constraints, problems are : Problem set: 0 solved, 196 unsolved in 5496 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 79/79 constraints, ReadFeed: 18/18 constraints, PredecessorRefiner: 196/196 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 196 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/79 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 196 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/79 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 196 unsolved
At refinement iteration 2 (OVERLAPS) 122/201 variables, 79/82 constraints. Problems are: Problem set: 0 solved, 196 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/201 variables, 18/100 constraints. Problems are: Problem set: 0 solved, 196 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/201 variables, 196/296 constraints. Problems are: Problem set: 0 solved, 196 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/201 variables, 0/296 constraints. Problems are: Problem set: 0 solved, 196 unsolved
At refinement iteration 6 (OVERLAPS) 0/201 variables, 0/296 constraints. Problems are: Problem set: 0 solved, 196 unsolved
No progress, stopping.
After SMT solving in domain Int declared 201/201 variables, and 296 constraints, problems are : Problem set: 0 solved, 196 unsolved in 7284 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 79/79 constraints, ReadFeed: 18/18 constraints, PredecessorRefiner: 196/196 constraints, Known Traps: 0/0 constraints]
After SMT, in 12907ms problems are : Problem set: 0 solved, 196 unsolved
Search for dead transitions found 0 dead transitions in 12909ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 13178 ms. Remains : 79/79 places, 198/198 transitions.
Attempting over-approximation, by ignoring read arcs.
Ensure Unique test removed 76 transitions
Reduce isomorphic transitions removed 76 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 8 transitions
Trivial Post-agglo rules discarded 8 transitions
Performed 8 trivial Post agglomeration. Transition count delta: 8
Iterating post reduction 0 with 84 rules applied. Total rules applied 84 place count 79 transition count 114
Reduce places removed 8 places and 0 transitions.
Iterating post reduction 1 with 8 rules applied. Total rules applied 92 place count 71 transition count 114
Performed 13 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 13 Pre rules applied. Total rules applied 92 place count 71 transition count 101
Deduced a syphon composed of 13 places in 0 ms
Reduce places removed 13 places and 0 transitions.
Iterating global reduction 2 with 26 rules applied. Total rules applied 118 place count 58 transition count 101
Performed 16 Post agglomeration using F-continuation condition.Transition count delta: 16
Deduced a syphon composed of 16 places in 0 ms
Reduce places removed 16 places and 0 transitions.
Iterating global reduction 2 with 32 rules applied. Total rules applied 150 place count 42 transition count 85
Discarding 7 places :
Symmetric choice reduction at 2 with 7 rule applications. Total rules 157 place count 35 transition count 71
Iterating global reduction 2 with 7 rules applied. Total rules applied 164 place count 35 transition count 71
Discarding 7 places :
Symmetric choice reduction at 2 with 7 rule applications. Total rules 171 place count 28 transition count 57
Iterating global reduction 2 with 7 rules applied. Total rules applied 178 place count 28 transition count 57
Discarding 7 places :
Symmetric choice reduction at 2 with 7 rule applications. Total rules 185 place count 21 transition count 43
Iterating global reduction 2 with 7 rules applied. Total rules applied 192 place count 21 transition count 43
Ensure Unique test removed 7 transitions
Reduce isomorphic transitions removed 7 transitions.
Iterating post reduction 2 with 7 rules applied. Total rules applied 199 place count 21 transition count 36
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 1 Pre rules applied. Total rules applied 199 place count 21 transition count 35
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 3 with 2 rules applied. Total rules applied 201 place count 20 transition count 35
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: -1
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 3 with 2 rules applied. Total rules applied 203 place count 19 transition count 36
Applied a total of 203 rules in 15 ms. Remains 19 /79 variables (removed 60) and now considering 36/198 (removed 162) transitions.
Running SMT prover for 1 properties.
// Phase 1: matrix 36 rows 19 cols
[2025-06-01 09:17:13] [INFO ] Computed 3 invariants in 1 ms
[2025-06-01 09:17:13] [INFO ] [Real]Absence check using 3 positive place invariants in 1 ms returned sat
[2025-06-01 09:17:13] [INFO ] After 36ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
[2025-06-01 09:17:13] [INFO ] [Nat]Absence check using 3 positive place invariants in 1 ms returned sat
[2025-06-01 09:17:13] [INFO ] After 13ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
[2025-06-01 09:17:13] [INFO ] State equation strengthened by 2 read => feed constraints.
[2025-06-01 09:17:13] [INFO ] After 3ms SMT Verify possible using 2 Read/Feed constraints in natural domain returned unsat :0 sat :1
TRAPS : Iteration 0
[2025-06-01 09:17:13] [INFO ] After 8ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
[2025-06-01 09:17:13] [INFO ] After 49ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
[2025-06-01 09:17:13] [INFO ] Flatten gal took : 2 ms
[2025-06-01 09:17:13] [INFO ] Flatten gal took : 2 ms
[2025-06-01 09:17:13] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality5878241789653314756.gal : 2 ms
[2025-06-01 09:17:13] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality1336029486262904699.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/ReachabilityCardinality5878241789653314756.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality1336029486262904699.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202405141337/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...328
Loading property file /tmp/ReachabilityCardinality1336029486262904699.prop.
SDD proceeding with computation,1 properties remain. new max is 4
SDD size :1 after 5
SDD proceeding with computation,1 properties remain. new max is 8
SDD size :5 after 10
SDD proceeding with computation,1 properties remain. new max is 16
SDD size :10 after 19
SDD proceeding with computation,1 properties remain. new max is 32
SDD size :19 after 126
SDD proceeding with computation,1 properties remain. new max is 64
SDD size :126 after 11556
SDD proceeding with computation,1 properties remain. new max is 128
SDD size :11556 after 7.75751e+06
SDD proceeding with computation,1 properties remain. new max is 256
SDD size :7.75751e+06 after 6.04406e+07
SDD proceeding with computation,1 properties remain. new max is 512
SDD size :6.04406e+07 after 3.13809e+08
SDD proceeding with computation,1 properties remain. new max is 1024
SDD size :3.13809e+08 after 1.41049e+09
SDD proceeding with computation,1 properties remain. new max is 128
SDD size :2.77281e+12 after 2.96599e+17
SDD proceeding with computation,1 properties remain. new max is 2048
SDD size :1.41049e+09 after 5.96009e+09
Detected timeout of ITS tools.
[2025-06-01 09:17:28] [INFO ] Flatten gal took : 4 ms
[2025-06-01 09:17:28] [INFO ] Applying decomposition
[2025-06-01 09:17:28] [INFO ] Flatten gal took : 2 ms
Converted graph to binary with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202405141337/bin/convert-linux64' '-i' '/tmp/graph2851021521209313333.txt' '-o' '/tmp/graph2851021521209313333.bin' '-w' '/tmp/graph2851021521209313333.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202405141337/bin/louvain-linux64' '/tmp/graph2851021521209313333.bin' '-l' '-1' '-v' '-w' '/tmp/graph2851021521209313333.weights' '-q' '0' '-e' '0.001'
[2025-06-01 09:17:28] [INFO ] Decomposing Gal with order
[2025-06-01 09:17:28] [INFO ] Rewriting arrays to variables to allow decomposition.
[2025-06-01 09:17:28] [INFO ] Removed a total of 42 redundant transitions.
[2025-06-01 09:17:28] [INFO ] Flatten gal took : 6 ms
[2025-06-01 09:17:28] [INFO ] Fuse similar labels procedure discarded/fused a total of 4 labels/synchronizations in 1 ms.
[2025-06-01 09:17:28] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality5293900254328577790.gal : 1 ms
[2025-06-01 09:17:28] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality13295863000465325993.prop : 0 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202405141337/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality5293900254328577790.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality13295863000465325993.prop' '--nowitness'

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 ...308
Loading property file /tmp/ReachabilityCardinality13295863000465325993.prop.
SDD proceeding with computation,1 properties remain. new max is 4
SDD size :1 after 5
SDD proceeding with computation,1 properties remain. new max is 8
SDD size :5 after 10
SDD proceeding with computation,1 properties remain. new max is 16
SDD size :10 after 19
SDD proceeding with computation,1 properties remain. new max is 32
SDD size :19 after 126
Detected timeout of ITS tools.
Over-approximation ignoring read arcs solved 0 properties in 30245 ms.
ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
[2025-06-01 09:17:43] [INFO ] Flatten gal took : 10 ms
[2025-06-01 09:17:43] [INFO ] Applying decomposition
[2025-06-01 09:17:43] [INFO ] Flatten gal took : 9 ms
Converted graph to binary with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202405141337/bin/convert-linux64' '-i' '/tmp/graph14194454625534938647.txt' '-o' '/tmp/graph14194454625534938647.bin' '-w' '/tmp/graph14194454625534938647.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202405141337/bin/louvain-linux64' '/tmp/graph14194454625534938647.bin' '-l' '-1' '-v' '-w' '/tmp/graph14194454625534938647.weights' '-q' '0' '-e' '0.001'
[2025-06-01 09:17:43] [INFO ] Decomposing Gal with order
[2025-06-01 09:17:43] [INFO ] Rewriting arrays to variables to allow decomposition.
[2025-06-01 09:17:43] [INFO ] Removed a total of 333 redundant transitions.
[2025-06-01 09:17:43] [INFO ] Flatten gal took : 20 ms
[2025-06-01 09:17:43] [INFO ] Fuse similar labels procedure discarded/fused a total of 109 labels/synchronizations in 9 ms.
[2025-06-01 09:17:43] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality4792929265643229172.gal : 2 ms
[2025-06-01 09:17:43] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality7538813543103641728.prop : 0 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202405141337/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality4792929265643229172.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality7538813543103641728.prop' '--nowitness'

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 ...307
Loading property file /tmp/ReachabilityCardinality7538813543103641728.prop.
Detected timeout of ITS tools.
Current structural bounds on expressions (After reachability solving 0 queries.) : Max Seen:[764] Max Struct:[+inf]
Ending property specific reduction for FunctionPointer-PT-b032-UpperBounds-04 in 149454 ms.
Starting property specific reduction for FunctionPointer-PT-b032-UpperBounds-08
Current structural bounds on expressions (Initially) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (Adding known information on max bounds.) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (Before main loop) : Max Seen:[0] Max Struct:[+inf]
[2025-06-01 09:18:33] [INFO ] Flow matrix only has 177 transitions (discarded 95 similar events)
// Phase 1: matrix 177 rows 111 cols
[2025-06-01 09:18:33] [INFO ] Computed 3 invariants in 1 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[+inf]
RANDOM walk for 10000 steps (2 resets) in 26 ms. (370 steps per ms)
BEST_FIRST walk for 10001 steps (2 resets) in 12 ms. (769 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[7] Max Struct:[+inf]
[2025-06-01 09:18:33] [INFO ] Flow matrix only has 177 transitions (discarded 95 similar events)
[2025-06-01 09:18:33] [INFO ] Invariant cache hit.
[2025-06-01 09:18:33] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 09:18:33] [INFO ] [Real]Absence check using state equation in 75 ms returned sat
[2025-06-01 09:18:33] [INFO ] State equation strengthened by 28 read => feed constraints.
[2025-06-01 09:18:33] [INFO ] [Real]Added 28 Read/Feed constraints in 11 ms returned sat
[2025-06-01 09:18:33] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 09:18:33] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 09:18:33] [INFO ] [Nat]Absence check using state equation in 71 ms returned sat
[2025-06-01 09:18:33] [INFO ] [Nat]Added 28 Read/Feed constraints in 9 ms returned sat
[2025-06-01 09:18:33] [INFO ] Computed and/alt/rep : 75/405/72 causal constraints (skipped 103 transitions) in 22 ms.
[2025-06-01 09:18:33] [INFO ] Deduced a trap composed of 18 places in 96 ms of which 2 ms to minimize.
[2025-06-01 09:18:33] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 118 ms
[2025-06-01 09:18:34] [INFO ] Added : 8 causal constraints over 4 iterations in 224 ms. Result :sat
Minimization took 39 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[7] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[8] Max Struct:[+inf]
Support contains 1 out of 111 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 111/111 places, 272/272 transitions.
Graph (complete) has 469 edges and 111 vertex of which 110 are kept as prefixes of interest. Removing 1 places using SCC suffix rule.1 ms
Discarding 1 places :
Also discarding 0 output transitions
Discarding 4 places :
Symmetric choice reduction at 0 with 4 rule applications. Total rules 5 place count 106 transition count 262
Iterating global reduction 0 with 4 rules applied. Total rules applied 9 place count 106 transition count 262
Discarding 4 places :
Symmetric choice reduction at 0 with 4 rule applications. Total rules 13 place count 102 transition count 252
Iterating global reduction 0 with 4 rules applied. Total rules applied 17 place count 102 transition count 252
Discarding 4 places :
Symmetric choice reduction at 0 with 4 rule applications. Total rules 21 place count 98 transition count 242
Iterating global reduction 0 with 4 rules applied. Total rules applied 25 place count 98 transition count 242
Discarding 4 places :
Symmetric choice reduction at 0 with 4 rule applications. Total rules 29 place count 94 transition count 230
Iterating global reduction 0 with 4 rules applied. Total rules applied 33 place count 94 transition count 230
Discarding 4 places :
Symmetric choice reduction at 0 with 4 rule applications. Total rules 37 place count 90 transition count 222
Iterating global reduction 0 with 4 rules applied. Total rules applied 41 place count 90 transition count 222
Discarding 4 places :
Symmetric choice reduction at 0 with 4 rule applications. Total rules 45 place count 86 transition count 212
Iterating global reduction 0 with 4 rules applied. Total rules applied 49 place count 86 transition count 212
Discarding 2 places :
Symmetric choice reduction at 0 with 2 rule applications. Total rules 51 place count 84 transition count 208
Iterating global reduction 0 with 2 rules applied. Total rules applied 53 place count 84 transition count 208
Discarding 2 places :
Symmetric choice reduction at 0 with 2 rule applications. Total rules 55 place count 82 transition count 204
Iterating global reduction 0 with 2 rules applied. Total rules applied 57 place count 82 transition count 204
Discarding 2 places :
Symmetric choice reduction at 0 with 2 rule applications. Total rules 59 place count 80 transition count 200
Iterating global reduction 0 with 2 rules applied. Total rules applied 61 place count 80 transition count 200
Discarding 2 places :
Symmetric choice reduction at 0 with 2 rule applications. Total rules 63 place count 78 transition count 196
Iterating global reduction 0 with 2 rules applied. Total rules applied 65 place count 78 transition count 196
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 66 place count 77 transition count 194
Iterating global reduction 0 with 1 rules applied. Total rules applied 67 place count 77 transition count 194
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 68 place count 76 transition count 192
Iterating global reduction 0 with 1 rules applied. Total rules applied 69 place count 76 transition count 192
Applied a total of 69 rules in 27 ms. Remains 76 /111 variables (removed 35) and now considering 192/272 (removed 80) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 27 ms. Remains : 76/111 places, 192/272 transitions.
[2025-06-01 09:18:34] [INFO ] Flow matrix only has 118 transitions (discarded 74 similar events)
Found an invariant !
This invariant on transitions {26=1, 54=1, 84=1, 114=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {27=1, 55=1, 101=1, 116=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 48 ms. (steps per millisecond=208 ) properties (out of 1) seen :[7]
Current structural bounds on expressions (after cover walk) : Max Seen:[8] Max Struct:[+inf]
[2025-06-01 09:18:34] [INFO ] Flow matrix only has 118 transitions (discarded 74 similar events)
// Phase 1: matrix 118 rows 76 cols
[2025-06-01 09:18:34] [INFO ] Computed 3 invariants in 1 ms
Current structural bounds on expressions (after invariants) : Max Seen:[8] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 1406 ms. (710 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 855 ms. (1168 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[901] Max Struct:[+inf]
[2025-06-01 09:18:36] [INFO ] Flow matrix only has 118 transitions (discarded 74 similar events)
[2025-06-01 09:18:36] [INFO ] Invariant cache hit.
[2025-06-01 09:18:36] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 09:18:36] [INFO ] [Real]Absence check using state equation in 61 ms returned sat
[2025-06-01 09:18:36] [INFO ] State equation strengthened by 17 read => feed constraints.
[2025-06-01 09:18:36] [INFO ] [Real]Added 17 Read/Feed constraints in 8 ms returned sat
[2025-06-01 09:18:36] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 09:18:36] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 09:18:36] [INFO ] [Nat]Absence check using state equation in 50 ms returned sat
[2025-06-01 09:18:36] [INFO ] [Nat]Added 17 Read/Feed constraints in 7 ms returned sat
[2025-06-01 09:18:36] [INFO ] Deduced a trap composed of 24 places in 69 ms of which 1 ms to minimize.
[2025-06-01 09:18:36] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 83 ms
[2025-06-01 09:18:36] [INFO ] Computed and/alt/rep : 57/184/51 causal constraints (skipped 65 transitions) in 13 ms.
[2025-06-01 09:18:36] [INFO ] Added : 4 causal constraints over 2 iterations in 48 ms. Result :sat
Minimization took 25 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[901] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[901] Max Struct:[+inf]
Support contains 1 out of 76 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 76/76 places, 192/192 transitions.
Applied a total of 0 rules in 3 ms. Remains 76 /76 variables (removed 0) and now considering 192/192 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 3 ms. Remains : 76/76 places, 192/192 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 76/76 places, 192/192 transitions.
Applied a total of 0 rules in 2 ms. Remains 76 /76 variables (removed 0) and now considering 192/192 (removed 0) transitions.
[2025-06-01 09:18:39] [INFO ] Flow matrix only has 118 transitions (discarded 74 similar events)
[2025-06-01 09:18:39] [INFO ] Invariant cache hit.
[2025-06-01 09:18:39] [INFO ] Implicit Places using invariants in 95 ms returned []
[2025-06-01 09:18:39] [INFO ] Flow matrix only has 118 transitions (discarded 74 similar events)
[2025-06-01 09:18:39] [INFO ] Invariant cache hit.
[2025-06-01 09:18:39] [INFO ] State equation strengthened by 17 read => feed constraints.
[2025-06-01 09:18:39] [INFO ] Implicit Places using invariants and state equation in 202 ms returned []
Implicit Place search using SMT with State Equation took 299 ms to find 0 implicit places.
[2025-06-01 09:18:39] [INFO ] Redundant transitions in 1 ms returned []
Running 190 sub problems to find dead transitions.
[2025-06-01 09:18:39] [INFO ] Flow matrix only has 118 transitions (discarded 74 similar events)
[2025-06-01 09:18:39] [INFO ] Invariant cache hit.
[2025-06-01 09:18:39] [INFO ] State equation strengthened by 17 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/76 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 190 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/76 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 190 unsolved
At refinement iteration 2 (OVERLAPS) 118/194 variables, 76/79 constraints. Problems are: Problem set: 0 solved, 190 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/194 variables, 17/96 constraints. Problems are: Problem set: 0 solved, 190 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/194 variables, 0/96 constraints. Problems are: Problem set: 0 solved, 190 unsolved
At refinement iteration 5 (OVERLAPS) 0/194 variables, 0/96 constraints. Problems are: Problem set: 0 solved, 190 unsolved
No progress, stopping.
After SMT solving in domain Real declared 194/194 variables, and 96 constraints, problems are : Problem set: 0 solved, 190 unsolved in 4373 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 76/76 constraints, ReadFeed: 17/17 constraints, PredecessorRefiner: 190/190 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 190 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/76 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 190 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/76 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 190 unsolved
At refinement iteration 2 (OVERLAPS) 118/194 variables, 76/79 constraints. Problems are: Problem set: 0 solved, 190 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/194 variables, 17/96 constraints. Problems are: Problem set: 0 solved, 190 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/194 variables, 190/286 constraints. Problems are: Problem set: 0 solved, 190 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/194 variables, 0/286 constraints. Problems are: Problem set: 0 solved, 190 unsolved
At refinement iteration 6 (OVERLAPS) 0/194 variables, 0/286 constraints. Problems are: Problem set: 0 solved, 190 unsolved
No progress, stopping.
After SMT solving in domain Int declared 194/194 variables, and 286 constraints, problems are : Problem set: 0 solved, 190 unsolved in 7262 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 76/76 constraints, ReadFeed: 17/17 constraints, PredecessorRefiner: 190/190 constraints, Known Traps: 0/0 constraints]
After SMT, in 11837ms problems are : Problem set: 0 solved, 190 unsolved
Search for dead transitions found 0 dead transitions in 11840ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 12148 ms. Remains : 76/76 places, 192/192 transitions.
[2025-06-01 09:18:51] [INFO ] Flow matrix only has 118 transitions (discarded 74 similar events)
Found an invariant !
This invariant on transitions {26=1, 54=1, 84=1, 114=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {27=1, 55=1, 101=1, 116=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 28 ms. (steps per millisecond=357 ) properties (out of 1) seen :[7]
Current structural bounds on expressions (after cover walk) : Max Seen:[901] Max Struct:[+inf]
[2025-06-01 09:18:51] [INFO ] Flow matrix only has 118 transitions (discarded 74 similar events)
[2025-06-01 09:18:51] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[901] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 1226 ms. (814 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 732 ms. (1364 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[908] Max Struct:[+inf]
[2025-06-01 09:18:53] [INFO ] Flow matrix only has 118 transitions (discarded 74 similar events)
[2025-06-01 09:18:53] [INFO ] Invariant cache hit.
[2025-06-01 09:18:53] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 09:18:53] [INFO ] [Real]Absence check using state equation in 40 ms returned sat
[2025-06-01 09:18:53] [INFO ] State equation strengthened by 17 read => feed constraints.
[2025-06-01 09:18:53] [INFO ] [Real]Added 17 Read/Feed constraints in 8 ms returned sat
[2025-06-01 09:18:53] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 09:18:53] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 09:18:53] [INFO ] [Nat]Absence check using state equation in 54 ms returned sat
[2025-06-01 09:18:53] [INFO ] [Nat]Added 17 Read/Feed constraints in 9 ms returned sat
[2025-06-01 09:18:53] [INFO ] Deduced a trap composed of 24 places in 54 ms of which 1 ms to minimize.
[2025-06-01 09:18:53] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 66 ms
[2025-06-01 09:18:53] [INFO ] Computed and/alt/rep : 57/184/51 causal constraints (skipped 65 transitions) in 11 ms.
[2025-06-01 09:18:53] [INFO ] Added : 4 causal constraints over 2 iterations in 47 ms. Result :sat
Minimization took 39 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[908] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[908] Max Struct:[+inf]
Support contains 1 out of 76 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 76/76 places, 192/192 transitions.
Applied a total of 0 rules in 3 ms. Remains 76 /76 variables (removed 0) and now considering 192/192 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 3 ms. Remains : 76/76 places, 192/192 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 76/76 places, 192/192 transitions.
Applied a total of 0 rules in 3 ms. Remains 76 /76 variables (removed 0) and now considering 192/192 (removed 0) transitions.
[2025-06-01 09:18:55] [INFO ] Flow matrix only has 118 transitions (discarded 74 similar events)
[2025-06-01 09:18:55] [INFO ] Invariant cache hit.
[2025-06-01 09:18:55] [INFO ] Implicit Places using invariants in 134 ms returned []
[2025-06-01 09:18:55] [INFO ] Flow matrix only has 118 transitions (discarded 74 similar events)
[2025-06-01 09:18:55] [INFO ] Invariant cache hit.
[2025-06-01 09:18:55] [INFO ] State equation strengthened by 17 read => feed constraints.
[2025-06-01 09:18:55] [INFO ] Implicit Places using invariants and state equation in 205 ms returned []
Implicit Place search using SMT with State Equation took 341 ms to find 0 implicit places.
[2025-06-01 09:18:55] [INFO ] Redundant transitions in 1 ms returned []
Running 190 sub problems to find dead transitions.
[2025-06-01 09:18:55] [INFO ] Flow matrix only has 118 transitions (discarded 74 similar events)
[2025-06-01 09:18:55] [INFO ] Invariant cache hit.
[2025-06-01 09:18:55] [INFO ] State equation strengthened by 17 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/76 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 190 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/76 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 190 unsolved
At refinement iteration 2 (OVERLAPS) 118/194 variables, 76/79 constraints. Problems are: Problem set: 0 solved, 190 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/194 variables, 17/96 constraints. Problems are: Problem set: 0 solved, 190 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/194 variables, 0/96 constraints. Problems are: Problem set: 0 solved, 190 unsolved
At refinement iteration 5 (OVERLAPS) 0/194 variables, 0/96 constraints. Problems are: Problem set: 0 solved, 190 unsolved
No progress, stopping.
After SMT solving in domain Real declared 194/194 variables, and 96 constraints, problems are : Problem set: 0 solved, 190 unsolved in 4779 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 76/76 constraints, ReadFeed: 17/17 constraints, PredecessorRefiner: 190/190 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 190 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/76 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 190 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/76 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 190 unsolved
At refinement iteration 2 (OVERLAPS) 118/194 variables, 76/79 constraints. Problems are: Problem set: 0 solved, 190 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/194 variables, 17/96 constraints. Problems are: Problem set: 0 solved, 190 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/194 variables, 190/286 constraints. Problems are: Problem set: 0 solved, 190 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/194 variables, 0/286 constraints. Problems are: Problem set: 0 solved, 190 unsolved
At refinement iteration 6 (OVERLAPS) 0/194 variables, 0/286 constraints. Problems are: Problem set: 0 solved, 190 unsolved
No progress, stopping.
After SMT solving in domain Int declared 194/194 variables, and 286 constraints, problems are : Problem set: 0 solved, 190 unsolved in 7227 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 76/76 constraints, ReadFeed: 17/17 constraints, PredecessorRefiner: 190/190 constraints, Known Traps: 0/0 constraints]
After SMT, in 12200ms problems are : Problem set: 0 solved, 190 unsolved
Search for dead transitions found 0 dead transitions in 12204ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 12554 ms. Remains : 76/76 places, 192/192 transitions.
[2025-06-01 09:19:07] [INFO ] Flow matrix only has 118 transitions (discarded 74 similar events)
Found an invariant !
This invariant on transitions {26=1, 54=1, 84=1, 114=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {27=1, 55=1, 101=1, 116=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 1) seen :[8]
Current structural bounds on expressions (after cover walk) : Max Seen:[908] Max Struct:[+inf]
[2025-06-01 09:19:07] [INFO ] Flow matrix only has 118 transitions (discarded 74 similar events)
[2025-06-01 09:19:07] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[908] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 1187 ms. (841 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 732 ms. (1364 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[908] Max Struct:[+inf]
[2025-06-01 09:19:09] [INFO ] Flow matrix only has 118 transitions (discarded 74 similar events)
[2025-06-01 09:19:09] [INFO ] Invariant cache hit.
[2025-06-01 09:19:09] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 09:19:09] [INFO ] [Real]Absence check using state equation in 39 ms returned sat
[2025-06-01 09:19:10] [INFO ] State equation strengthened by 17 read => feed constraints.
[2025-06-01 09:19:10] [INFO ] [Real]Added 17 Read/Feed constraints in 13 ms returned sat
[2025-06-01 09:19:10] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 09:19:10] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 09:19:10] [INFO ] [Nat]Absence check using state equation in 55 ms returned sat
[2025-06-01 09:19:10] [INFO ] [Nat]Added 17 Read/Feed constraints in 9 ms returned sat
[2025-06-01 09:19:10] [INFO ] Deduced a trap composed of 24 places in 54 ms of which 2 ms to minimize.
[2025-06-01 09:19:10] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 68 ms
[2025-06-01 09:19:10] [INFO ] Computed and/alt/rep : 57/184/51 causal constraints (skipped 65 transitions) in 12 ms.
[2025-06-01 09:19:10] [INFO ] Added : 4 causal constraints over 2 iterations in 49 ms. Result :sat
Minimization took 41 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[908] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[908] Max Struct:[+inf]
Support contains 1 out of 76 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 76/76 places, 192/192 transitions.
Applied a total of 0 rules in 16 ms. Remains 76 /76 variables (removed 0) and now considering 192/192 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 16 ms. Remains : 76/76 places, 192/192 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 76/76 places, 192/192 transitions.
Applied a total of 0 rules in 2 ms. Remains 76 /76 variables (removed 0) and now considering 192/192 (removed 0) transitions.
[2025-06-01 09:19:12] [INFO ] Flow matrix only has 118 transitions (discarded 74 similar events)
[2025-06-01 09:19:12] [INFO ] Invariant cache hit.
[2025-06-01 09:19:12] [INFO ] Implicit Places using invariants in 151 ms returned []
[2025-06-01 09:19:12] [INFO ] Flow matrix only has 118 transitions (discarded 74 similar events)
[2025-06-01 09:19:12] [INFO ] Invariant cache hit.
[2025-06-01 09:19:12] [INFO ] State equation strengthened by 17 read => feed constraints.
[2025-06-01 09:19:12] [INFO ] Implicit Places using invariants and state equation in 207 ms returned []
Implicit Place search using SMT with State Equation took 360 ms to find 0 implicit places.
[2025-06-01 09:19:12] [INFO ] Redundant transitions in 1 ms returned []
Running 190 sub problems to find dead transitions.
[2025-06-01 09:19:12] [INFO ] Flow matrix only has 118 transitions (discarded 74 similar events)
[2025-06-01 09:19:12] [INFO ] Invariant cache hit.
[2025-06-01 09:19:12] [INFO ] State equation strengthened by 17 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/76 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 190 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/76 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 190 unsolved
At refinement iteration 2 (OVERLAPS) 118/194 variables, 76/79 constraints. Problems are: Problem set: 0 solved, 190 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/194 variables, 17/96 constraints. Problems are: Problem set: 0 solved, 190 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/194 variables, 0/96 constraints. Problems are: Problem set: 0 solved, 190 unsolved
At refinement iteration 5 (OVERLAPS) 0/194 variables, 0/96 constraints. Problems are: Problem set: 0 solved, 190 unsolved
No progress, stopping.
After SMT solving in domain Real declared 194/194 variables, and 96 constraints, problems are : Problem set: 0 solved, 190 unsolved in 4614 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 76/76 constraints, ReadFeed: 17/17 constraints, PredecessorRefiner: 190/190 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 190 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/76 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 190 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/76 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 190 unsolved
At refinement iteration 2 (OVERLAPS) 118/194 variables, 76/79 constraints. Problems are: Problem set: 0 solved, 190 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/194 variables, 17/96 constraints. Problems are: Problem set: 0 solved, 190 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/194 variables, 190/286 constraints. Problems are: Problem set: 0 solved, 190 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/194 variables, 0/286 constraints. Problems are: Problem set: 0 solved, 190 unsolved
At refinement iteration 6 (OVERLAPS) 0/194 variables, 0/286 constraints. Problems are: Problem set: 0 solved, 190 unsolved
No progress, stopping.
After SMT solving in domain Int declared 194/194 variables, and 286 constraints, problems are : Problem set: 0 solved, 190 unsolved in 8721 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 76/76 constraints, ReadFeed: 17/17 constraints, PredecessorRefiner: 190/190 constraints, Known Traps: 0/0 constraints]
After SMT, in 13483ms problems are : Problem set: 0 solved, 190 unsolved
Search for dead transitions found 0 dead transitions in 13486ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 13858 ms. Remains : 76/76 places, 192/192 transitions.
[2025-06-01 09:19:25] [INFO ] Flow matrix only has 118 transitions (discarded 74 similar events)
Found an invariant !
This invariant on transitions {26=1, 54=1, 84=1, 114=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {27=1, 55=1, 101=1, 116=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 28 ms. (steps per millisecond=357 ) properties (out of 1) seen :[7]
Current structural bounds on expressions (after cover walk) : Max Seen:[908] Max Struct:[+inf]
[2025-06-01 09:19:26] [INFO ] Flatten gal took : 16 ms
[2025-06-01 09:19:26] [INFO ] Flatten gal took : 16 ms
[2025-06-01 09:19:26] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality11750027030617948303.gal : 3 ms
[2025-06-01 09:19:26] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality10127718732079415028.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/ReachabilityCardinality11750027030617948303.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality10127718732079415028.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

RANDOM walk for 40002 steps (8 resets) in 118 ms. (336 steps per ms) remains 1/1 properties
/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202405141337/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...330
BEST_FIRST walk for 40003 steps (8 resets) in 31 ms. (1250 steps per ms) remains 1/1 properties
Loading property file /tmp/ReachabilityCardinality10127718732079415028.prop.
SDD proceeding with computation,1 properties remain. new max is 4
SDD size :1 after 31
SDD proceeding with computation,1 properties remain. new max is 8
SDD size :31 after 1038
SDD proceeding with computation,1 properties remain. new max is 16
SDD size :1038 after 153135
SDD proceeding with computation,1 properties remain. new max is 32
SDD size :153135 after 1.6579e+08
Interrupted probabilistic random walk after 1746127 steps, run timeout after 3001 ms. (steps per millisecond=581 ) properties seen :0 out of 1
Probabilistic random walk after 1746127 steps, saw 1086798 distinct states, run finished after 3001 ms. (steps per millisecond=581 ) properties seen :0
[2025-06-01 09:19:29] [INFO ] Flow matrix only has 118 transitions (discarded 74 similar events)
[2025-06-01 09:19:29] [INFO ] Invariant cache hit.
[2025-06-01 09:19:29] [INFO ] State equation strengthened by 17 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 3/4 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/4 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 67/71 variables, 6/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/71 variables, 1/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/71 variables, 0/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 5/76 variables, 2/10 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/76 variables, 3/13 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/76 variables, 0/13 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 94/170 variables, 52/65 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/170 variables, 16/81 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/170 variables, 0/81 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 12 (OVERLAPS) 6/176 variables, 1/82 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/176 variables, 0/82 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 11/187 variables, 10/92 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/187 variables, 0/92 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 4/191 variables, 2/94 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/191 variables, 0/94 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 3/194 variables, 2/96 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/194 variables, 0/96 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (OVERLAPS) 0/194 variables, 0/96 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 194/194 variables, and 96 constraints, problems are : Problem set: 0 solved, 1 unsolved in 126 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 76/76 constraints, ReadFeed: 17/17 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 3/4 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/4 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 67/71 variables, 6/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/71 variables, 1/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/71 variables, 1/9 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/71 variables, 0/9 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 5/76 variables, 2/11 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/76 variables, 3/14 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/76 variables, 0/14 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 94/170 variables, 52/66 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/170 variables, 16/82 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/170 variables, 0/82 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 6/176 variables, 1/83 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/176 variables, 0/83 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 11/187 variables, 10/93 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/187 variables, 0/93 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 4/191 variables, 2/95 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/191 variables, 0/95 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 3/194 variables, 2/97 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/194 variables, 0/97 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 0/194 variables, 0/97 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 194/194 variables, and 97 constraints, problems are : Problem set: 0 solved, 1 unsolved in 114 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 76/76 constraints, ReadFeed: 17/17 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
After SMT, in 248ms problems are : Problem set: 0 solved, 1 unsolved
Finished Parikh walk after 14243 steps, including 998 resets, run visited all 1 properties in 34 ms. (steps per millisecond=418 )
Parikh walk visited 1 properties in 41 ms.
ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
Current structural bounds on expressions (After reachability solving 0 queries.) : Max Seen:[908] Max Struct:[+inf]
Ending property specific reduction for FunctionPointer-PT-b032-UpperBounds-08 in 55941 ms.
Starting property specific reduction for FunctionPointer-PT-b032-UpperBounds-09
Current structural bounds on expressions (Initially) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (Adding known information on max bounds.) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (Before main loop) : Max Seen:[0] Max Struct:[+inf]
[2025-06-01 09:19:29] [INFO ] Flow matrix only has 177 transitions (discarded 95 similar events)
// Phase 1: matrix 177 rows 111 cols
[2025-06-01 09:19:29] [INFO ] Computed 3 invariants in 1 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[+inf]
RANDOM walk for 10000 steps (2 resets) in 17 ms. (555 steps per ms)
BEST_FIRST walk for 10001 steps (2 resets) in 7 ms. (1250 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[1] Max Struct:[+inf]
[2025-06-01 09:19:29] [INFO ] Flow matrix only has 177 transitions (discarded 95 similar events)
[2025-06-01 09:19:29] [INFO ] Invariant cache hit.
[2025-06-01 09:19:29] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 09:19:29] [INFO ] [Real]Absence check using state equation in 77 ms returned sat
[2025-06-01 09:19:29] [INFO ] State equation strengthened by 28 read => feed constraints.
[2025-06-01 09:19:29] [INFO ] [Real]Added 28 Read/Feed constraints in 11 ms returned sat
[2025-06-01 09:19:29] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 09:19:29] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 09:19:29] [INFO ] [Nat]Absence check using state equation in 77 ms returned sat
[2025-06-01 09:19:29] [INFO ] [Nat]Added 28 Read/Feed constraints in 11 ms returned sat
[2025-06-01 09:19:29] [INFO ] Computed and/alt/rep : 75/405/72 causal constraints (skipped 103 transitions) in 17 ms.
[2025-06-01 09:19:29] [INFO ] Added : 23 causal constraints over 6 iterations in 147 ms. Result :sat
Minimization took 72 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[1] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[1] Max Struct:[+inf]
Support contains 1 out of 111 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 111/111 places, 272/272 transitions.
Graph (complete) has 469 edges and 111 vertex of which 110 are kept as prefixes of interest. Removing 1 places using SCC suffix rule.9 ms
Discarding 1 places :
Also discarding 0 output transitions
Discarding 3 places :
Symmetric choice reduction at 0 with 3 rule applications. Total rules 4 place count 107 transition count 264
Iterating global reduction 0 with 3 rules applied. Total rules applied 7 place count 107 transition count 264
Discarding 3 places :
Symmetric choice reduction at 0 with 3 rule applications. Total rules 10 place count 104 transition count 258
Iterating global reduction 0 with 3 rules applied. Total rules applied 13 place count 104 transition count 258
Discarding 3 places :
Symmetric choice reduction at 0 with 3 rule applications. Total rules 16 place count 101 transition count 250
Iterating global reduction 0 with 3 rules applied. Total rules applied 19 place count 101 transition count 250
Discarding 3 places :
Symmetric choice reduction at 0 with 3 rule applications. Total rules 22 place count 98 transition count 242
Iterating global reduction 0 with 3 rules applied. Total rules applied 25 place count 98 transition count 242
Discarding 3 places :
Symmetric choice reduction at 0 with 3 rule applications. Total rules 28 place count 95 transition count 236
Iterating global reduction 0 with 3 rules applied. Total rules applied 31 place count 95 transition count 236
Discarding 3 places :
Symmetric choice reduction at 0 with 3 rule applications. Total rules 34 place count 92 transition count 228
Iterating global reduction 0 with 3 rules applied. Total rules applied 37 place count 92 transition count 228
Discarding 2 places :
Symmetric choice reduction at 0 with 2 rule applications. Total rules 39 place count 90 transition count 224
Iterating global reduction 0 with 2 rules applied. Total rules applied 41 place count 90 transition count 224
Discarding 2 places :
Symmetric choice reduction at 0 with 2 rule applications. Total rules 43 place count 88 transition count 220
Iterating global reduction 0 with 2 rules applied. Total rules applied 45 place count 88 transition count 220
Discarding 2 places :
Symmetric choice reduction at 0 with 2 rule applications. Total rules 47 place count 86 transition count 216
Iterating global reduction 0 with 2 rules applied. Total rules applied 49 place count 86 transition count 216
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 50 place count 85 transition count 214
Iterating global reduction 0 with 1 rules applied. Total rules applied 51 place count 85 transition count 214
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 52 place count 84 transition count 212
Iterating global reduction 0 with 1 rules applied. Total rules applied 53 place count 84 transition count 212
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 54 place count 83 transition count 210
Iterating global reduction 0 with 1 rules applied. Total rules applied 55 place count 83 transition count 210
Applied a total of 55 rules in 27 ms. Remains 83 /111 variables (removed 28) and now considering 210/272 (removed 62) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 27 ms. Remains : 83/111 places, 210/272 transitions.
[2025-06-01 09:19:30] [INFO ] Flow matrix only has 130 transitions (discarded 80 similar events)
Found an invariant !
This invariant on transitions {29=1, 64=1, 96=1, 126=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {29=1, 64=1, 112=1, 128=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 31 ms. (steps per millisecond=322 ) properties (out of 1) seen :[3]
Current structural bounds on expressions (after cover walk) : Max Seen:[3] Max Struct:[+inf]
[2025-06-01 09:19:30] [INFO ] Flow matrix only has 130 transitions (discarded 80 similar events)
// Phase 1: matrix 130 rows 83 cols
[2025-06-01 09:19:30] [INFO ] Computed 3 invariants in 1 ms
Current structural bounds on expressions (after invariants) : Max Seen:[3] Max Struct:[+inf]
RANDOM walk for 1000003 steps (2 resets) in 1295 ms. (771 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 841 ms. (1187 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[252] Max Struct:[+inf]
[2025-06-01 09:19:32] [INFO ] Flow matrix only has 130 transitions (discarded 80 similar events)
[2025-06-01 09:19:32] [INFO ] Invariant cache hit.
[2025-06-01 09:19:32] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 09:19:32] [INFO ] [Real]Absence check using state equation in 41 ms returned sat
[2025-06-01 09:19:32] [INFO ] State equation strengthened by 18 read => feed constraints.
[2025-06-01 09:19:32] [INFO ] [Real]Added 18 Read/Feed constraints in 9 ms returned sat
[2025-06-01 09:19:32] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 09:19:32] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 09:19:32] [INFO ] [Nat]Absence check using state equation in 51 ms returned sat
[2025-06-01 09:19:32] [INFO ] [Nat]Added 18 Read/Feed constraints in 6 ms returned sat
[2025-06-01 09:19:32] [INFO ] Deduced a trap composed of 25 places in 66 ms of which 2 ms to minimize.
[2025-06-01 09:19:32] [INFO ] Deduced a trap composed of 21 places in 65 ms of which 2 ms to minimize.
[2025-06-01 09:19:32] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 151 ms
[2025-06-01 09:19:32] [INFO ] Computed and/alt/rep : 61/202/55 causal constraints (skipped 73 transitions) in 10 ms.
[2025-06-01 09:19:32] [INFO ] Added : 15 causal constraints over 4 iterations in 68 ms. Result :sat
Minimization took 51 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[252] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[252] Max Struct:[+inf]
Support contains 1 out of 83 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 83/83 places, 210/210 transitions.
Applied a total of 0 rules in 4 ms. Remains 83 /83 variables (removed 0) and now considering 210/210 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 4 ms. Remains : 83/83 places, 210/210 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 83/83 places, 210/210 transitions.
Applied a total of 0 rules in 3 ms. Remains 83 /83 variables (removed 0) and now considering 210/210 (removed 0) transitions.
[2025-06-01 09:19:33] [INFO ] Flow matrix only has 130 transitions (discarded 80 similar events)
[2025-06-01 09:19:33] [INFO ] Invariant cache hit.
[2025-06-01 09:19:33] [INFO ] Implicit Places using invariants in 142 ms returned []
[2025-06-01 09:19:33] [INFO ] Flow matrix only has 130 transitions (discarded 80 similar events)
[2025-06-01 09:19:33] [INFO ] Invariant cache hit.
[2025-06-01 09:19:33] [INFO ] State equation strengthened by 18 read => feed constraints.
[2025-06-01 09:19:34] [INFO ] Implicit Places using invariants and state equation in 208 ms returned []
Implicit Place search using SMT with State Equation took 351 ms to find 0 implicit places.
[2025-06-01 09:19:34] [INFO ] Redundant transitions in 1 ms returned []
Running 208 sub problems to find dead transitions.
[2025-06-01 09:19:34] [INFO ] Flow matrix only has 130 transitions (discarded 80 similar events)
[2025-06-01 09:19:34] [INFO ] Invariant cache hit.
[2025-06-01 09:19:34] [INFO ] State equation strengthened by 18 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/83 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 208 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/83 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 208 unsolved
At refinement iteration 2 (OVERLAPS) 130/213 variables, 83/86 constraints. Problems are: Problem set: 0 solved, 208 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/213 variables, 18/104 constraints. Problems are: Problem set: 0 solved, 208 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/213 variables, 0/104 constraints. Problems are: Problem set: 0 solved, 208 unsolved
At refinement iteration 5 (OVERLAPS) 0/213 variables, 0/104 constraints. Problems are: Problem set: 0 solved, 208 unsolved
No progress, stopping.
After SMT solving in domain Real declared 213/213 variables, and 104 constraints, problems are : Problem set: 0 solved, 208 unsolved in 7799 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 83/83 constraints, ReadFeed: 18/18 constraints, PredecessorRefiner: 208/208 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 208 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/83 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 208 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/83 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 208 unsolved
At refinement iteration 2 (OVERLAPS) 130/213 variables, 83/86 constraints. Problems are: Problem set: 0 solved, 208 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/213 variables, 18/104 constraints. Problems are: Problem set: 0 solved, 208 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/213 variables, 208/312 constraints. Problems are: Problem set: 0 solved, 208 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/213 variables, 0/312 constraints. Problems are: Problem set: 0 solved, 208 unsolved
At refinement iteration 6 (OVERLAPS) 0/213 variables, 0/312 constraints. Problems are: Problem set: 0 solved, 208 unsolved
No progress, stopping.
After SMT solving in domain Int declared 213/213 variables, and 312 constraints, problems are : Problem set: 0 solved, 208 unsolved in 11237 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 83/83 constraints, ReadFeed: 18/18 constraints, PredecessorRefiner: 208/208 constraints, Known Traps: 0/0 constraints]
After SMT, in 19230ms problems are : Problem set: 0 solved, 208 unsolved
Search for dead transitions found 0 dead transitions in 19232ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 19594 ms. Remains : 83/83 places, 210/210 transitions.
[2025-06-01 09:19:53] [INFO ] Flow matrix only has 130 transitions (discarded 80 similar events)
Found an invariant !
This invariant on transitions {29=1, 64=1, 96=1, 126=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {29=1, 64=1, 112=1, 128=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 50 ms. (steps per millisecond=200 ) properties (out of 1) seen :[4]
Current structural bounds on expressions (after cover walk) : Max Seen:[252] Max Struct:[+inf]
[2025-06-01 09:19:53] [INFO ] Flow matrix only has 130 transitions (discarded 80 similar events)
[2025-06-01 09:19:53] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[252] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 1520 ms. (657 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 827 ms. (1207 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[252] Max Struct:[+inf]
[2025-06-01 09:19:55] [INFO ] Flow matrix only has 130 transitions (discarded 80 similar events)
[2025-06-01 09:19:55] [INFO ] Invariant cache hit.
[2025-06-01 09:19:55] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 09:19:55] [INFO ] [Real]Absence check using state equation in 69 ms returned sat
[2025-06-01 09:19:55] [INFO ] State equation strengthened by 18 read => feed constraints.
[2025-06-01 09:19:55] [INFO ] [Real]Added 18 Read/Feed constraints in 7 ms returned sat
[2025-06-01 09:19:56] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 09:19:56] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 09:19:56] [INFO ] [Nat]Absence check using state equation in 53 ms returned sat
[2025-06-01 09:19:56] [INFO ] [Nat]Added 18 Read/Feed constraints in 5 ms returned sat
[2025-06-01 09:19:56] [INFO ] Deduced a trap composed of 25 places in 73 ms of which 1 ms to minimize.
[2025-06-01 09:19:56] [INFO ] Deduced a trap composed of 21 places in 93 ms of which 1 ms to minimize.
[2025-06-01 09:19:56] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 189 ms
[2025-06-01 09:19:56] [INFO ] Computed and/alt/rep : 61/202/55 causal constraints (skipped 73 transitions) in 16 ms.
[2025-06-01 09:19:56] [INFO ] Added : 15 causal constraints over 4 iterations in 99 ms. Result :sat
Minimization took 54 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[252] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[252] Max Struct:[+inf]
Support contains 1 out of 83 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 83/83 places, 210/210 transitions.
Applied a total of 0 rules in 3 ms. Remains 83 /83 variables (removed 0) and now considering 210/210 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 3 ms. Remains : 83/83 places, 210/210 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 83/83 places, 210/210 transitions.
Applied a total of 0 rules in 3 ms. Remains 83 /83 variables (removed 0) and now considering 210/210 (removed 0) transitions.
[2025-06-01 09:19:57] [INFO ] Flow matrix only has 130 transitions (discarded 80 similar events)
[2025-06-01 09:19:57] [INFO ] Invariant cache hit.
[2025-06-01 09:19:57] [INFO ] Implicit Places using invariants in 106 ms returned []
[2025-06-01 09:19:57] [INFO ] Flow matrix only has 130 transitions (discarded 80 similar events)
[2025-06-01 09:19:57] [INFO ] Invariant cache hit.
[2025-06-01 09:19:57] [INFO ] State equation strengthened by 18 read => feed constraints.
[2025-06-01 09:19:58] [INFO ] Implicit Places using invariants and state equation in 179 ms returned []
Implicit Place search using SMT with State Equation took 318 ms to find 0 implicit places.
[2025-06-01 09:19:58] [INFO ] Redundant transitions in 0 ms returned []
Running 208 sub problems to find dead transitions.
[2025-06-01 09:19:58] [INFO ] Flow matrix only has 130 transitions (discarded 80 similar events)
[2025-06-01 09:19:58] [INFO ] Invariant cache hit.
[2025-06-01 09:19:58] [INFO ] State equation strengthened by 18 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/83 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 208 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/83 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 208 unsolved
At refinement iteration 2 (OVERLAPS) 130/213 variables, 83/86 constraints. Problems are: Problem set: 0 solved, 208 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/213 variables, 18/104 constraints. Problems are: Problem set: 0 solved, 208 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/213 variables, 0/104 constraints. Problems are: Problem set: 0 solved, 208 unsolved
At refinement iteration 5 (OVERLAPS) 0/213 variables, 0/104 constraints. Problems are: Problem set: 0 solved, 208 unsolved
No progress, stopping.
After SMT solving in domain Real declared 213/213 variables, and 104 constraints, problems are : Problem set: 0 solved, 208 unsolved in 6580 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 83/83 constraints, ReadFeed: 18/18 constraints, PredecessorRefiner: 208/208 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 208 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/83 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 208 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/83 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 208 unsolved
At refinement iteration 2 (OVERLAPS) 130/213 variables, 83/86 constraints. Problems are: Problem set: 0 solved, 208 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/213 variables, 18/104 constraints. Problems are: Problem set: 0 solved, 208 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/213 variables, 208/312 constraints. Problems are: Problem set: 0 solved, 208 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/213 variables, 0/312 constraints. Problems are: Problem set: 0 solved, 208 unsolved
At refinement iteration 6 (OVERLAPS) 0/213 variables, 0/312 constraints. Problems are: Problem set: 0 solved, 208 unsolved
No progress, stopping.
After SMT solving in domain Int declared 213/213 variables, and 312 constraints, problems are : Problem set: 0 solved, 208 unsolved in 9482 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 83/83 constraints, ReadFeed: 18/18 constraints, PredecessorRefiner: 208/208 constraints, Known Traps: 0/0 constraints]
After SMT, in 16197ms problems are : Problem set: 0 solved, 208 unsolved
Search for dead transitions found 0 dead transitions in 16200ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 16528 ms. Remains : 83/83 places, 210/210 transitions.
[2025-06-01 09:20:14] [INFO ] Flow matrix only has 130 transitions (discarded 80 similar events)
Found an invariant !
This invariant on transitions {29=1, 64=1, 96=1, 126=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {29=1, 64=1, 112=1, 128=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 35 ms. (steps per millisecond=285 ) properties (out of 1) seen :[2147483647]
Current structural bounds on expressions (after cover walk) : Max Seen:[+inf] Max Struct:[+inf]
[2025-06-01 09:20:14] [INFO ] Flow matrix only has 130 transitions (discarded 80 similar events)
[2025-06-01 09:20:14] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[+inf] Max Struct:[+inf]
RANDOM walk for 1000001 steps (2 resets) in 1309 ms. (763 steps per ms)
FORMULA FunctionPointer-PT-b032-UpperBounds-09 +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 09:20:15] [INFO ] Flatten gal took : 10 ms
[2025-06-01 09:20:15] [INFO ] Flatten gal took : 8 ms
[2025-06-01 09:20:15] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality16061507899106599525.gal : 2 ms
[2025-06-01 09:20:15] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality6205200734146261698.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/ReachabilityCardinality16061507899106599525.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality6205200734146261698.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 ...329
ITS tools runner thread asked to quit. Dying gracefully.
Current structural bounds on expressions (After reachability solving 0 queries.) : Max Seen:[] Max Struct:[]
Ending property specific reduction for FunctionPointer-PT-b032-UpperBounds-09 in 46292 ms.
Starting property specific reduction for FunctionPointer-PT-b032-UpperBounds-14
Current structural bounds on expressions (Initially) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (Adding known information on max bounds.) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (Before main loop) : Max Seen:[0] Max Struct:[+inf]
[2025-06-01 09:20:15] [INFO ] Flow matrix only has 177 transitions (discarded 95 similar events)
// Phase 1: matrix 177 rows 111 cols
[2025-06-01 09:20:15] [INFO ] Computed 3 invariants in 1 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[+inf]
RANDOM walk for 10001 steps (2 resets) in 15 ms. (625 steps per ms)
BEST_FIRST walk for 10001 steps (2 resets) in 8 ms. (1111 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0] Max Struct:[+inf]
[2025-06-01 09:20:15] [INFO ] Flow matrix only has 177 transitions (discarded 95 similar events)
[2025-06-01 09:20:15] [INFO ] Invariant cache hit.
[2025-06-01 09:20:15] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 09:20:15] [INFO ] [Real]Absence check using state equation in 62 ms returned sat
[2025-06-01 09:20:15] [INFO ] State equation strengthened by 28 read => feed constraints.
[2025-06-01 09:20:15] [INFO ] [Real]Added 28 Read/Feed constraints in 10 ms returned sat
[2025-06-01 09:20:15] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 09:20:15] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 09:20:15] [INFO ] [Nat]Absence check using state equation in 62 ms returned sat
[2025-06-01 09:20:15] [INFO ] [Nat]Added 28 Read/Feed constraints in 9 ms returned sat
[2025-06-01 09:20:15] [INFO ] Computed and/alt/rep : 75/405/72 causal constraints (skipped 103 transitions) in 13 ms.
[2025-06-01 09:20:16] [INFO ] Added : 5 causal constraints over 2 iterations in 58 ms. Result :sat
Minimization took 38 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[1] Max Struct:[+inf]
Support contains 1 out of 111 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 111/111 places, 272/272 transitions.
Graph (complete) has 469 edges and 111 vertex of which 110 are kept as prefixes of interest. Removing 1 places using SCC suffix rule.0 ms
Discarding 1 places :
Also discarding 0 output transitions
Discarding 3 places :
Symmetric choice reduction at 0 with 3 rule applications. Total rules 4 place count 107 transition count 266
Iterating global reduction 0 with 3 rules applied. Total rules applied 7 place count 107 transition count 266
Discarding 3 places :
Symmetric choice reduction at 0 with 3 rule applications. Total rules 10 place count 104 transition count 258
Iterating global reduction 0 with 3 rules applied. Total rules applied 13 place count 104 transition count 258
Discarding 3 places :
Symmetric choice reduction at 0 with 3 rule applications. Total rules 16 place count 101 transition count 252
Iterating global reduction 0 with 3 rules applied. Total rules applied 19 place count 101 transition count 252
Discarding 3 places :
Symmetric choice reduction at 0 with 3 rule applications. Total rules 22 place count 98 transition count 242
Iterating global reduction 0 with 3 rules applied. Total rules applied 25 place count 98 transition count 242
Discarding 3 places :
Symmetric choice reduction at 0 with 3 rule applications. Total rules 28 place count 95 transition count 236
Iterating global reduction 0 with 3 rules applied. Total rules applied 31 place count 95 transition count 236
Discarding 3 places :
Symmetric choice reduction at 0 with 3 rule applications. Total rules 34 place count 92 transition count 228
Iterating global reduction 0 with 3 rules applied. Total rules applied 37 place count 92 transition count 228
Discarding 2 places :
Symmetric choice reduction at 0 with 2 rule applications. Total rules 39 place count 90 transition count 224
Iterating global reduction 0 with 2 rules applied. Total rules applied 41 place count 90 transition count 224
Discarding 2 places :
Symmetric choice reduction at 0 with 2 rule applications. Total rules 43 place count 88 transition count 220
Iterating global reduction 0 with 2 rules applied. Total rules applied 45 place count 88 transition count 220
Discarding 2 places :
Symmetric choice reduction at 0 with 2 rule applications. Total rules 47 place count 86 transition count 216
Iterating global reduction 0 with 2 rules applied. Total rules applied 49 place count 86 transition count 216
Discarding 2 places :
Symmetric choice reduction at 0 with 2 rule applications. Total rules 51 place count 84 transition count 212
Iterating global reduction 0 with 2 rules applied. Total rules applied 53 place count 84 transition count 212
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 54 place count 83 transition count 210
Iterating global reduction 0 with 1 rules applied. Total rules applied 55 place count 83 transition count 210
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 56 place count 82 transition count 208
Iterating global reduction 0 with 1 rules applied. Total rules applied 57 place count 82 transition count 208
Applied a total of 57 rules in 23 ms. Remains 82 /111 variables (removed 29) and now considering 208/272 (removed 64) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 24 ms. Remains : 82/111 places, 208/272 transitions.
[2025-06-01 09:20:16] [INFO ] Flow matrix only has 128 transitions (discarded 80 similar events)
Found an invariant !
This invariant on transitions {29=1, 32=1, 34=1, 63=1, 94=1, 123=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {26=1, 60=1, 91=1, 123=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 32 ms. (steps per millisecond=312 ) properties (out of 1) seen :[3]
Current structural bounds on expressions (after cover walk) : Max Seen:[3] Max Struct:[+inf]
[2025-06-01 09:20:16] [INFO ] Flow matrix only has 128 transitions (discarded 80 similar events)
// Phase 1: matrix 128 rows 82 cols
[2025-06-01 09:20:16] [INFO ] Computed 3 invariants in 1 ms
Current structural bounds on expressions (after invariants) : Max Seen:[3] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 1433 ms. (697 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 827 ms. (1207 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[239] Max Struct:[+inf]
[2025-06-01 09:20:18] [INFO ] Flow matrix only has 128 transitions (discarded 80 similar events)
[2025-06-01 09:20:18] [INFO ] Invariant cache hit.
[2025-06-01 09:20:18] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 09:20:18] [INFO ] [Real]Absence check using state equation in 57 ms returned sat
[2025-06-01 09:20:18] [INFO ] State equation strengthened by 18 read => feed constraints.
[2025-06-01 09:20:18] [INFO ] [Real]Added 18 Read/Feed constraints in 8 ms returned sat
[2025-06-01 09:20:18] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 09:20:18] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 09:20:18] [INFO ] [Nat]Absence check using state equation in 59 ms returned sat
[2025-06-01 09:20:18] [INFO ] [Nat]Added 18 Read/Feed constraints in 8 ms returned sat
[2025-06-01 09:20:18] [INFO ] Deduced a trap composed of 19 places in 101 ms of which 3 ms to minimize.
[2025-06-01 09:20:18] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 120 ms
[2025-06-01 09:20:18] [INFO ] Computed and/alt/rep : 60/196/54 causal constraints (skipped 72 transitions) in 16 ms.
[2025-06-01 09:20:18] [INFO ] Added : 26 causal constraints over 7 iterations in 141 ms. Result :sat
Minimization took 57 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[239] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[239] Max Struct:[+inf]
Support contains 1 out of 82 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 82/82 places, 208/208 transitions.
Applied a total of 0 rules in 3 ms. Remains 82 /82 variables (removed 0) and now considering 208/208 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 3 ms. Remains : 82/82 places, 208/208 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 82/82 places, 208/208 transitions.
Applied a total of 0 rules in 2 ms. Remains 82 /82 variables (removed 0) and now considering 208/208 (removed 0) transitions.
[2025-06-01 09:20:19] [INFO ] Flow matrix only has 128 transitions (discarded 80 similar events)
[2025-06-01 09:20:19] [INFO ] Invariant cache hit.
[2025-06-01 09:20:20] [INFO ] Implicit Places using invariants in 101 ms returned []
[2025-06-01 09:20:20] [INFO ] Flow matrix only has 128 transitions (discarded 80 similar events)
[2025-06-01 09:20:20] [INFO ] Invariant cache hit.
[2025-06-01 09:20:20] [INFO ] State equation strengthened by 18 read => feed constraints.
[2025-06-01 09:20:20] [INFO ] Implicit Places using invariants and state equation in 242 ms returned []
Implicit Place search using SMT with State Equation took 345 ms to find 0 implicit places.
[2025-06-01 09:20:20] [INFO ] Redundant transitions in 1 ms returned []
Running 206 sub problems to find dead transitions.
[2025-06-01 09:20:20] [INFO ] Flow matrix only has 128 transitions (discarded 80 similar events)
[2025-06-01 09:20:20] [INFO ] Invariant cache hit.
[2025-06-01 09:20:20] [INFO ] State equation strengthened by 18 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/82 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 206 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/82 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 206 unsolved
At refinement iteration 2 (OVERLAPS) 128/210 variables, 82/85 constraints. Problems are: Problem set: 0 solved, 206 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/210 variables, 18/103 constraints. Problems are: Problem set: 0 solved, 206 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/210 variables, 0/103 constraints. Problems are: Problem set: 0 solved, 206 unsolved
At refinement iteration 5 (OVERLAPS) 0/210 variables, 0/103 constraints. Problems are: Problem set: 0 solved, 206 unsolved
No progress, stopping.
After SMT solving in domain Real declared 210/210 variables, and 103 constraints, problems are : Problem set: 0 solved, 206 unsolved in 6292 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 82/82 constraints, ReadFeed: 18/18 constraints, PredecessorRefiner: 206/206 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 206 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/82 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 206 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/82 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 206 unsolved
At refinement iteration 2 (OVERLAPS) 128/210 variables, 82/85 constraints. Problems are: Problem set: 0 solved, 206 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/210 variables, 18/103 constraints. Problems are: Problem set: 0 solved, 206 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/210 variables, 206/309 constraints. Problems are: Problem set: 0 solved, 206 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/210 variables, 0/309 constraints. Problems are: Problem set: 0 solved, 206 unsolved
At refinement iteration 6 (OVERLAPS) 0/210 variables, 0/309 constraints. Problems are: Problem set: 0 solved, 206 unsolved
No progress, stopping.
After SMT solving in domain Int declared 210/210 variables, and 309 constraints, problems are : Problem set: 0 solved, 206 unsolved in 8212 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 82/82 constraints, ReadFeed: 18/18 constraints, PredecessorRefiner: 206/206 constraints, Known Traps: 0/0 constraints]
After SMT, in 14645ms problems are : Problem set: 0 solved, 206 unsolved
Search for dead transitions found 0 dead transitions in 14648ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 15003 ms. Remains : 82/82 places, 208/208 transitions.
[2025-06-01 09:20:34] [INFO ] Flow matrix only has 128 transitions (discarded 80 similar events)
Found an invariant !
This invariant on transitions {29=1, 32=1, 34=1, 63=1, 94=1, 123=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {26=1, 60=1, 91=1, 123=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 48 ms. (steps per millisecond=208 ) properties (out of 1) seen :[2]
Current structural bounds on expressions (after cover walk) : Max Seen:[239] Max Struct:[+inf]
[2025-06-01 09:20:35] [INFO ] Flow matrix only has 128 transitions (discarded 80 similar events)
[2025-06-01 09:20:35] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[239] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 1491 ms. (670 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 841 ms. (1187 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[250] Max Struct:[+inf]
[2025-06-01 09:20:37] [INFO ] Flow matrix only has 128 transitions (discarded 80 similar events)
[2025-06-01 09:20:37] [INFO ] Invariant cache hit.
[2025-06-01 09:20:37] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-01 09:20:37] [INFO ] [Real]Absence check using state equation in 62 ms returned sat
[2025-06-01 09:20:37] [INFO ] State equation strengthened by 18 read => feed constraints.
[2025-06-01 09:20:37] [INFO ] [Real]Added 18 Read/Feed constraints in 8 ms returned sat
[2025-06-01 09:20:37] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 09:20:37] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 09:20:37] [INFO ] [Nat]Absence check using state equation in 44 ms returned sat
[2025-06-01 09:20:37] [INFO ] [Nat]Added 18 Read/Feed constraints in 5 ms returned sat
[2025-06-01 09:20:37] [INFO ] Deduced a trap composed of 19 places in 77 ms of which 2 ms to minimize.
[2025-06-01 09:20:37] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 87 ms
[2025-06-01 09:20:37] [INFO ] Computed and/alt/rep : 60/196/54 causal constraints (skipped 72 transitions) in 9 ms.
[2025-06-01 09:20:37] [INFO ] Added : 26 causal constraints over 7 iterations in 88 ms. Result :sat
Minimization took 41 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[250] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[250] Max Struct:[+inf]
Support contains 1 out of 82 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 82/82 places, 208/208 transitions.
Applied a total of 0 rules in 3 ms. Remains 82 /82 variables (removed 0) and now considering 208/208 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 4 ms. Remains : 82/82 places, 208/208 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 82/82 places, 208/208 transitions.
Applied a total of 0 rules in 3 ms. Remains 82 /82 variables (removed 0) and now considering 208/208 (removed 0) transitions.
[2025-06-01 09:20:38] [INFO ] Flow matrix only has 128 transitions (discarded 80 similar events)
[2025-06-01 09:20:38] [INFO ] Invariant cache hit.
[2025-06-01 09:20:38] [INFO ] Implicit Places using invariants in 153 ms returned []
[2025-06-01 09:20:38] [INFO ] Flow matrix only has 128 transitions (discarded 80 similar events)
[2025-06-01 09:20:38] [INFO ] Invariant cache hit.
[2025-06-01 09:20:38] [INFO ] State equation strengthened by 18 read => feed constraints.
[2025-06-01 09:20:39] [INFO ] Implicit Places using invariants and state equation in 198 ms returned []
Implicit Place search using SMT with State Equation took 353 ms to find 0 implicit places.
[2025-06-01 09:20:39] [INFO ] Redundant transitions in 1 ms returned []
Running 206 sub problems to find dead transitions.
[2025-06-01 09:20:39] [INFO ] Flow matrix only has 128 transitions (discarded 80 similar events)
[2025-06-01 09:20:39] [INFO ] Invariant cache hit.
[2025-06-01 09:20:39] [INFO ] State equation strengthened by 18 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/82 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 206 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/82 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 206 unsolved
At refinement iteration 2 (OVERLAPS) 128/210 variables, 82/85 constraints. Problems are: Problem set: 0 solved, 206 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/210 variables, 18/103 constraints. Problems are: Problem set: 0 solved, 206 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/210 variables, 0/103 constraints. Problems are: Problem set: 0 solved, 206 unsolved
At refinement iteration 5 (OVERLAPS) 0/210 variables, 0/103 constraints. Problems are: Problem set: 0 solved, 206 unsolved
No progress, stopping.
After SMT solving in domain Real declared 210/210 variables, and 103 constraints, problems are : Problem set: 0 solved, 206 unsolved in 4673 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 82/82 constraints, ReadFeed: 18/18 constraints, PredecessorRefiner: 206/206 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 206 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/82 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 206 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/82 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 206 unsolved
At refinement iteration 2 (OVERLAPS) 128/210 variables, 82/85 constraints. Problems are: Problem set: 0 solved, 206 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/210 variables, 18/103 constraints. Problems are: Problem set: 0 solved, 206 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/210 variables, 206/309 constraints. Problems are: Problem set: 0 solved, 206 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/210 variables, 0/309 constraints. Problems are: Problem set: 0 solved, 206 unsolved
At refinement iteration 6 (OVERLAPS) 0/210 variables, 0/309 constraints. Problems are: Problem set: 0 solved, 206 unsolved
No progress, stopping.
After SMT solving in domain Int declared 210/210 variables, and 309 constraints, problems are : Problem set: 0 solved, 206 unsolved in 9179 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 82/82 constraints, ReadFeed: 18/18 constraints, PredecessorRefiner: 206/206 constraints, Known Traps: 0/0 constraints]
After SMT, in 14072ms problems are : Problem set: 0 solved, 206 unsolved
Search for dead transitions found 0 dead transitions in 14074ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 14436 ms. Remains : 82/82 places, 208/208 transitions.
[2025-06-01 09:20:53] [INFO ] Flow matrix only has 128 transitions (discarded 80 similar events)
Found an invariant !
This invariant on transitions {29=1, 32=1, 34=1, 63=1, 94=1, 123=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {26=1, 60=1, 91=1, 123=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 30 ms. (steps per millisecond=333 ) properties (out of 1) seen :[3]
Current structural bounds on expressions (after cover walk) : Max Seen:[250] Max Struct:[+inf]
[2025-06-01 09:20:53] [INFO ] Flow matrix only has 128 transitions (discarded 80 similar events)
[2025-06-01 09:20:53] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[250] Max Struct:[+inf]
RANDOM walk for 1000003 steps (2 resets) in 1236 ms. (808 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 834 ms. (1197 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[250] Max Struct:[+inf]
[2025-06-01 09:20:55] [INFO ] Flow matrix only has 128 transitions (discarded 80 similar events)
[2025-06-01 09:20:55] [INFO ] Invariant cache hit.
[2025-06-01 09:20:55] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 09:20:55] [INFO ] [Real]Absence check using state equation in 44 ms returned sat
[2025-06-01 09:20:55] [INFO ] State equation strengthened by 18 read => feed constraints.
[2025-06-01 09:20:55] [INFO ] [Real]Added 18 Read/Feed constraints in 6 ms returned sat
[2025-06-01 09:20:55] [INFO ] Solution in real domain found non-integer solution.
[2025-06-01 09:20:55] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-01 09:20:55] [INFO ] [Nat]Absence check using state equation in 44 ms returned sat
[2025-06-01 09:20:55] [INFO ] [Nat]Added 18 Read/Feed constraints in 4 ms returned sat
[2025-06-01 09:20:55] [INFO ] Deduced a trap composed of 19 places in 70 ms of which 3 ms to minimize.
[2025-06-01 09:20:55] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 85 ms
[2025-06-01 09:20:55] [INFO ] Computed and/alt/rep : 60/196/54 causal constraints (skipped 72 transitions) in 11 ms.
[2025-06-01 09:20:55] [INFO ] Added : 26 causal constraints over 7 iterations in 115 ms. Result :sat
Minimization took 57 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[250] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[250] Max Struct:[+inf]
Support contains 1 out of 82 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 82/82 places, 208/208 transitions.
Applied a total of 0 rules in 4 ms. Remains 82 /82 variables (removed 0) and now considering 208/208 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 4 ms. Remains : 82/82 places, 208/208 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 82/82 places, 208/208 transitions.
Applied a total of 0 rules in 3 ms. Remains 82 /82 variables (removed 0) and now considering 208/208 (removed 0) transitions.
[2025-06-01 09:20:56] [INFO ] Flow matrix only has 128 transitions (discarded 80 similar events)
[2025-06-01 09:20:56] [INFO ] Invariant cache hit.
[2025-06-01 09:20:56] [INFO ] Implicit Places using invariants in 112 ms returned []
[2025-06-01 09:20:56] [INFO ] Flow matrix only has 128 transitions (discarded 80 similar events)
[2025-06-01 09:20:56] [INFO ] Invariant cache hit.
[2025-06-01 09:20:57] [INFO ] State equation strengthened by 18 read => feed constraints.
[2025-06-01 09:20:57] [INFO ] Implicit Places using invariants and state equation in 235 ms returned []
Implicit Place search using SMT with State Equation took 349 ms to find 0 implicit places.
[2025-06-01 09:20:57] [INFO ] Redundant transitions in 1 ms returned []
Running 206 sub problems to find dead transitions.
[2025-06-01 09:20:57] [INFO ] Flow matrix only has 128 transitions (discarded 80 similar events)
[2025-06-01 09:20:57] [INFO ] Invariant cache hit.
[2025-06-01 09:20:57] [INFO ] State equation strengthened by 18 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/82 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 206 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/82 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 206 unsolved
At refinement iteration 2 (OVERLAPS) 128/210 variables, 82/85 constraints. Problems are: Problem set: 0 solved, 206 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/210 variables, 18/103 constraints. Problems are: Problem set: 0 solved, 206 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/210 variables, 0/103 constraints. Problems are: Problem set: 0 solved, 206 unsolved
At refinement iteration 5 (OVERLAPS) 0/210 variables, 0/103 constraints. Problems are: Problem set: 0 solved, 206 unsolved
No progress, stopping.
After SMT solving in domain Real declared 210/210 variables, and 103 constraints, problems are : Problem set: 0 solved, 206 unsolved in 6155 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 82/82 constraints, ReadFeed: 18/18 constraints, PredecessorRefiner: 206/206 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 206 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/82 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 206 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/82 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 206 unsolved
At refinement iteration 2 (OVERLAPS) 128/210 variables, 82/85 constraints. Problems are: Problem set: 0 solved, 206 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/210 variables, 18/103 constraints. Problems are: Problem set: 0 solved, 206 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/210 variables, 206/309 constraints. Problems are: Problem set: 0 solved, 206 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/210 variables, 0/309 constraints. Problems are: Problem set: 0 solved, 206 unsolved
At refinement iteration 6 (OVERLAPS) 0/210 variables, 0/309 constraints. Problems are: Problem set: 0 solved, 206 unsolved
No progress, stopping.
After SMT solving in domain Int declared 210/210 variables, and 309 constraints, problems are : Problem set: 0 solved, 206 unsolved in 8694 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 82/82 constraints, ReadFeed: 18/18 constraints, PredecessorRefiner: 206/206 constraints, Known Traps: 0/0 constraints]
After SMT, in 15061ms problems are : Problem set: 0 solved, 206 unsolved
Search for dead transitions found 0 dead transitions in 15064ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 15422 ms. Remains : 82/82 places, 208/208 transitions.
[2025-06-01 09:21:12] [INFO ] Flow matrix only has 128 transitions (discarded 80 similar events)
Found an invariant !
This invariant on transitions {29=1, 32=1, 34=1, 63=1, 94=1, 123=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {26=1, 60=1, 91=1, 123=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 29 ms. (steps per millisecond=344 ) properties (out of 1) seen :[3]
Current structural bounds on expressions (after cover walk) : Max Seen:[250] Max Struct:[+inf]
[2025-06-01 09:21:12] [INFO ] Flatten gal took : 12 ms
RANDOM walk for 40004 steps (8 resets) in 123 ms. (322 steps per ms) remains 1/1 properties
[2025-06-01 09:21:12] [INFO ] Flatten gal took : 11 ms
[2025-06-01 09:21:12] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality11364086755341736398.gal : 3 ms
[2025-06-01 09:21:12] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality11453427357316629165.prop : 0 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202405141337/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality11364086755341736398.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality11453427357316629165.prop' '--nowitness' '--gen-order' 'FOLLOW'
BEST_FIRST walk for 40004 steps (8 resets) in 35 ms. (1111 steps per ms) remains 1/1 properties

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 ...330
Loading property file /tmp/ReachabilityCardinality11453427357316629165.prop.
SDD proceeding with computation,1 properties remain. new max is 4
SDD size :1 after 31
SDD proceeding with computation,1 properties remain. new max is 8
SDD size :31 after 1045
SDD proceeding with computation,1 properties remain. new max is 16
SDD size :1045 after 158850
SDD proceeding with computation,1 properties remain. new max is 32
SDD size :158850 after 1.90899e+08
Interrupted probabilistic random walk after 1758788 steps, run timeout after 3001 ms. (steps per millisecond=586 ) properties seen :0 out of 1
Probabilistic random walk after 1758788 steps, saw 1123755 distinct states, run finished after 3001 ms. (steps per millisecond=586 ) properties seen :0
[2025-06-01 09:21:15] [INFO ] Flow matrix only has 128 transitions (discarded 80 similar events)
[2025-06-01 09:21:15] [INFO ] Invariant cache hit.
[2025-06-01 09:21:15] [INFO ] State equation strengthened by 18 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 4/5 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/5 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 70/75 variables, 4/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/75 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 10/85 variables, 2/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/85 variables, 4/11 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/85 variables, 0/11 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 100/185 variables, 58/69 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 9 (INCLUDED_ONLY) 0/185 variables, 18/87 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/185 variables, 0/87 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 6/191 variables, 1/88 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/191 variables, 0/88 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 14/205 variables, 12/100 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/205 variables, 0/100 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 4/209 variables, 2/102 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/209 variables, 0/102 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 1/210 variables, 1/103 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/210 variables, 0/103 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 0/210 variables, 0/103 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 210/210 variables, and 103 constraints, problems are : Problem set: 0 solved, 1 unsolved in 110 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 82/82 constraints, ReadFeed: 18/18 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 4/5 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/5 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 70/75 variables, 4/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/75 variables, 1/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/75 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 10/85 variables, 2/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/85 variables, 4/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/85 variables, 0/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 100/185 variables, 58/70 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/185 variables, 18/88 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/185 variables, 0/88 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 6/191 variables, 1/89 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/191 variables, 0/89 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 14/205 variables, 12/101 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/205 variables, 0/101 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 4/209 variables, 2/103 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/209 variables, 0/103 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 1/210 variables, 1/104 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/210 variables, 0/104 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (OVERLAPS) 0/210 variables, 0/104 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 210/210 variables, and 104 constraints, problems are : Problem set: 0 solved, 1 unsolved in 114 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 82/82 constraints, ReadFeed: 18/18 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
After SMT, in 230ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 502 ms.
Support contains 1 out of 82 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 82/82 places, 208/208 transitions.
Applied a total of 0 rules in 5 ms. Remains 82 /82 variables (removed 0) and now considering 208/208 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 7 ms. Remains : 82/82 places, 208/208 transitions.
RANDOM walk for 40001 steps (8 resets) in 79 ms. (500 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (8 resets) in 38 ms. (1025 steps per ms) remains 1/1 properties
SDD proceeding with computation,1 properties remain. new max is 64
SDD size :1.90899e+08 after 3.32784e+12
Interrupted probabilistic random walk after 1525319 steps, run timeout after 3001 ms. (steps per millisecond=508 ) properties seen :0 out of 1
Probabilistic random walk after 1525319 steps, saw 963509 distinct states, run finished after 3001 ms. (steps per millisecond=508 ) properties seen :0
[2025-06-01 09:21:19] [INFO ] Flow matrix only has 128 transitions (discarded 80 similar events)
[2025-06-01 09:21:19] [INFO ] Invariant cache hit.
[2025-06-01 09:21:19] [INFO ] State equation strengthened by 18 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 4/5 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/5 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 70/75 variables, 4/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/75 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 10/85 variables, 2/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/85 variables, 4/11 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/85 variables, 0/11 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 100/185 variables, 58/69 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 9 (INCLUDED_ONLY) 0/185 variables, 18/87 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/185 variables, 0/87 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 6/191 variables, 1/88 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/191 variables, 0/88 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 14/205 variables, 12/100 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/205 variables, 0/100 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 4/209 variables, 2/102 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/209 variables, 0/102 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 1/210 variables, 1/103 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/210 variables, 0/103 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 0/210 variables, 0/103 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 210/210 variables, and 103 constraints, problems are : Problem set: 0 solved, 1 unsolved in 114 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 82/82 constraints, ReadFeed: 18/18 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 4/5 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/5 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 70/75 variables, 4/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/75 variables, 1/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/75 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 10/85 variables, 2/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/85 variables, 4/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/85 variables, 0/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 100/185 variables, 58/70 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/185 variables, 18/88 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/185 variables, 0/88 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 6/191 variables, 1/89 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/191 variables, 0/89 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 14/205 variables, 12/101 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/205 variables, 0/101 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 4/209 variables, 2/103 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/209 variables, 0/103 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 1/210 variables, 1/104 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/210 variables, 0/104 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (OVERLAPS) 0/210 variables, 0/104 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 210/210 variables, and 104 constraints, problems are : Problem set: 0 solved, 1 unsolved in 102 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 82/82 constraints, ReadFeed: 18/18 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
After SMT, in 234ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 667 ms.
Support contains 1 out of 82 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 82/82 places, 208/208 transitions.
Applied a total of 0 rules in 5 ms. Remains 82 /82 variables (removed 0) and now considering 208/208 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 5 ms. Remains : 82/82 places, 208/208 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 82/82 places, 208/208 transitions.
Applied a total of 0 rules in 12 ms. Remains 82 /82 variables (removed 0) and now considering 208/208 (removed 0) transitions.
[2025-06-01 09:21:20] [INFO ] Flow matrix only has 128 transitions (discarded 80 similar events)
[2025-06-01 09:21:20] [INFO ] Invariant cache hit.
[2025-06-01 09:21:20] [INFO ] Implicit Places using invariants in 144 ms returned []
[2025-06-01 09:21:20] [INFO ] Flow matrix only has 128 transitions (discarded 80 similar events)
[2025-06-01 09:21:20] [INFO ] Invariant cache hit.
[2025-06-01 09:21:20] [INFO ] State equation strengthened by 18 read => feed constraints.

BK_TIME_CONFINEMENT_REACHED

--------------------
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-b032"
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-b032, 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-174867015800012"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/FunctionPointer-PT-b032.tgz
mv FunctionPointer-PT-b032 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 ;